GB1565890A - Creation of Inventions and Patents with Artificial Intelligence

GB1565890A – Electromechanical pulse generator
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GB1565890A – Electromechanical pulse generator
– Google Patents
Electromechanical pulse generator

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Publication number
GB1565890A

GB1565890A
GB51251/77A
GB5125177A
GB1565890A
GB 1565890 A
GB1565890 A
GB 1565890A
GB 51251/77 A
GB51251/77 A
GB 51251/77A
GB 5125177 A
GB5125177 A
GB 5125177A
GB 1565890 A
GB1565890 A
GB 1565890A
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GB
United Kingdom
Prior art keywords
pulse
contact
rotation
pulse generator
forwards
Prior art date
1976-12-22
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Expired

Application number
GB51251/77A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Diehl Verwaltungs Stiftung

Original Assignee
Diehl GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1976-12-22
Filing date
1977-12-09
Publication date
1980-04-23

1977-12-09
Application filed by Diehl GmbH and Co
filed
Critical
Diehl GmbH and Co

1980-04-23
Publication of GB1565890A
publication
Critical
patent/GB1565890A/en

Status
Expired
legal-status
Critical
Current

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Classifications

G—PHYSICS

G04—HOROLOGY

G04C—ELECTROMECHANICAL CLOCKS OR WATCHES

G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means

G04C3/001—Electromechanical switches for setting or display

G04C3/007—Electromechanical contact-making and breaking devices acting as pulse generators for setting

Description

PATENT SPECIFICATION
Application No 51251/77 ( 22) Filed 9 Dec 1977 Convention Application No 2658105 Filed 22 Dec 1976 in Federal Republic of Germany (DE) Complete Specification published 23 April 1980
INT CL 3 HOIR 39/6011 G 04 G 5/02 ( 52) Index at acceptance G 3 T KC KD G 4 D 442 CM HIN 46046646756556 X 56 Y 575581631 649700704712714 715 735 744 ( 54) AN ELECTROMECHANICAL PULSE GENERATOR ( 71) We, DIEHL G m b H & Co, formerly known as Diehl, of Stephanstrasse 49, 8500 Nfirnberg, Germany, a Kommanditgesellschaft organised under the laws of the Federal Republic of Germany, the present personally-responsible Partner being Sfiddeutsches Metall-Kontor G.m b H do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:-
This invention relates to an electromechanical pulse generator which may be used for producing electrical pulses for the adjusting or correction of an electronic digital display.
An adjusting arrangement for an electronic digital display in an electronic timepiece is known through Swiss Patent No 558,560.
The correction or adjustment of the display can, in this respect, be undertaken via a rotary knob which is arranged outside the housing of the timepiece Upon adjustment of this rotary knob, there are selectable, in the interior of the timepiece, via a contact spring which is arranged on its shaft, several outputs of a frequency divider, whereby pulses having different high frequencies can be passed on to the electronic digital display means and the display thereof is, as required, correctable with different, constant pulse frequencies In addition to this, in a variant of this arrangement, a separate RC or LC oscillator is provided, which is likewise adjustable by the external rotary knob, in which respect the frequency of the correction pulses which can be passed on to the digital display is continuously changeable as a function of the angle of rotation of the rotary knob.
Also, in the case of each of the said embodiments of a display adjusting arrangement, means are provided which make possible both a forwards and a backwards correction of the display.
The said arrangements hereinbefore explained require, upon the adjustment of a display by the operator, a very sensitive handling of the external rotary knob-this being, in the one case, on account of the frequency divider outputs which lie very close to one another and which have to be selected one after the other, and, in the other case, more especially on account on the relatively small range of angular rotation which is available.
In addition to this, in the specification of our British Patent No 1,510,744 there is described an electronic timepiece with an electromechanical adjusting arrangement for the adjustment or correction of an electronic digital display in which the hereinbefore-mentioned disadvantages are already circumvented in an advantageous manner The adjustment of the display is in this case effected, unlike the adjusting arrangements described in the hereinbefore-mentioned Swiss Patent, by individual pulses which can be produced by means of a pulse generator and the frequency and direction of which are variable at will as a function of the actuating speed and direction of an actuating element.
It is the object of the present invention, by simplifying the mechanical and electrical construction, to provide an inexpensive display-adjusting arrangement which is suitable for mass-production and which is not restricted to use in a specific kind of apparatus having electronic digital display and which makes possible utilisation of the producible pulses, more especially in determination of direction-forwards or backwards-with simple electronic means.
According to the invention, there is provided an electromechanical pulse generator for producing electrical pulses for the adjustment or correction of an electronic digital display, characterised in that the pulse generator comprises a pulse transmitter, a pulse collector, control logic, and a forwards/backwards counter, in that CO us ( 21) ( 31) ( 32) ( 33) ( 44) ( 51) ( 11) 1 565 890 ( 1 t 1,565,890 the pulse transmitter has a plurality of pulseproducing elements, in that the pulse collector has a plurality of sensing elements which are co-operable with the pulseproducing elements of the pulse transmitter and which are electrical contacts, in that the elements of the pulse transmitter and of the pulse collector are rotatable relatively to each other manually or by a motor at a variable speed in either desired direction of rotation and in that at each rotary step at least two electrical contact paths are closable separately from one another, in that the contact paths are spatially associated with one another in such a way that upon rotation of the elements of the pulse transmitter and the pulse collector relatively to one another temporally offset pulses can be produced, the frequency of the pulses which can be produced in this way being proportional to the relative speed between the pulse transmitter and the pulse collector and the type of the phase shiftlead or lag-being dependent on the direction of rotation, and in that the produced pulses can be fed for the evaluation of their phase shift into the control logic and can be passed on to the forwards/backwards counter arranged subsequent to the control logic, for the control of the said counter in the forwards or backwards direction.
Through an electromechanical pulse generator constructed in accordance with the invention, it is possible, in a simple and operationally reliable manner, to adjust the reading of an electronic digital display very quickly Possible faulty adjustments are easy to correct, since a forwards and backwards correction is possible with an arrangement constructed in accordance with the invention The adjustment of a display value may be effected, in this respect, by individual pulses which can be produced slowly or quickly in a consecutive manner as a function of the speed of rotation of an actuating element, in which respect through the spatial correlation of the elements of the pulse transmitter and the pulse collector the direction of the pulses-forwards or backwards-is clearly determined and is utilisable in the control logic, so that the pulses passed on to the forwards/backwards counter drive this latter unequivocally in the forwards or backwards direction.
Depending on the number of pulseproducing elements of the pulse transmitter and the transmission ratio of gearing which may be provided between an actuating element and the pulse transmitter or collector, there can, for example, be produced 60 pulses per revolution of the actuating element Upon carrying out the adjusting procedure the operator can, in this respect, be restricted neither by any fixed correction positions which are dependent on the angle of rotation of an actuating element, nor by an adjusting speed the obtaining of which requires a knack in judging by feel an angle of rotation upon the 70 adjustment of an indication, since associated with each individual adjustable display value there may be a mechanical angular movement which is sensible by way of a detent action at the pulse transmitter or 75 the pulse collector, which can be felt at an actuating element.
Also, according to the invention, there is provided an electromechanical pulse generator comprising a rotor, control logic, 80 and a forwards/backwards counter controlled by the control logic, a plurality of conductive paths, connected to the control logic, being provided for conducting pulses, produced by rotation of the rotor, to the 85 control logic, and the arrangement being such that the rotor is rotatable in one direction of rotation to produce a pulse which is suppled to the control logic via one of said conductive paths to cause, by itself 90 or in conjunction with a pulse also produced by rotation of said rotor but supplied to the control logic via a different one of said conductive paths, the forwards/backwards counter to operate in one direction, and that 95 the rotor is rotatable in the direction of rotation opposite to the first-mentioned direction of rotation to produce a pulse which is supplied to the control logic via one of said conductive paths to cause, by itself 100 or in conjunction with a pulse also produced by rotation of said rotor but supplied to the control logic via one of said conductive paths different from the last-mentioned conductive path, the forwards/backwards 105 counter to operate in a direction opposite to said first-mentioned direction of operation of said counter.
In the accompanying drawings, which show a number of exemplary embodiments 110 of the invention:Fig 1 shows a schematic representation of a first exemplary embodiment of a pulse generator constructed in accordance with the invention; 115 Figs 2 and 3 show a pulse collector, of the arrangement shown in Fig 1, rotated for a forwards pulse generation into different positions relative to a pulse transmitter of the pulse generator (the direction of 120 rotation being in accordance with the direction of the arrow); Figs 4 and 5 sho W the pulse collector of said arrangement shown in Fig I rotated for a backwards pulse production into different 125 positions relative to the pulse transmitter of the pulse generator; Fig 6 shows a pulse diagram with representation of input and output pulses representation, a fifth exemplary embodiment of a pulse generator:
Fig 30 shows the arrangement of the actuating element of the pulse generator, shown in Fig 29, in an appliance having an electronic digital display:
Fig 3 1 shows, in schematic representation, a sixth exemplary embodiment of a pulse generator; Figs 32 and 33 show a pulse transmitter, of the pulse generator in accordance with Fig 31, rotated for a forwards pulse production into different positions relative to a pulse collector of the said pulse generator in accordance with Fig 31:
Figs 34 and 35 show the pulse transmitter, of the pulse generator in accordance with Fig 31, rotated for backwards pulse production into different positions relative to the pulse collector of the said pulse generator in accordance with Fig 31:
Fig 36 shows a pulse diagram with representation of input and output pulses which can be produced upon actuation of the pulse generator shown in Fig 31; Fig 37 shows a seventh exemplary embodiment of a pulse generator, in schematic representation:
Figs 38 and 39 show a pulse collector, of the pulse generator in accordance with Fig.
37, rotated, for a backwards pulse production, into different positions relative to a pulse transmitter of the said pulse generator in accordance with Fig 37; Figs 40 and 41 show the pulse collector, of the pulse generator in accordance with Fig 37, rotated for a forwards pulse production into different positions relative to the pulse transmitter of the said pulse generator in accordance with Fig 37; and Fig 42 shows a pulse diagram with representation of pulses which can be produced upon actuation of the pulse generator in accordance with Fig 37.
In the drawings, parts which correspond to one another or are similar to one another are provided with the same reference numerals.
Referring to the drawings, the electromechanical pulse generators shown partially only schematically in the Figures consist generally of a pulse transmitter 1, a pulse collector 2, control logic 3, a forwards/backwards counter 4, a manuallyadjustable actuating element 5, a shaft 6 which is drivable upon actuation of the latter, and a detent mechanism 7.
The pulse transmitter 1 consists, in the case of all of the exemplary embodiments shown, of a plurality of pulse-producing elements which are arranged in at least one circular path concentrically with respect to the axis of rotation of the shaft 6 and which collaborate with a plurality of sensing which can be produced by the pulse generator shown in Fig I; Fig 7 shows a section, on the line VIIVII, Fig 8 through the overall arrangement of a pulse generator shown in Fig 8; Fig 8 shows a longitudinal section, on the line VIII-Vi II, Fig 7; Fig 9 is a section, on the line IX-IX, Fig 10, showing a variant of the drive of the pulse generator, shown in Figs 7 and 8:
Fig 10 is a section, on the line X-X, Fig.
9, through the pulse generator, shown in Fig 9; Fig 11 shows a further exemplary embodiment of a pulse generator, in schematic representation:
Figs 12 and 13 show a pulse transmitter, of the pulse generator in accordance with Fig 11, rotated for a forwards pulse production into different positions relative to a pulse collector of the said pulse generator in accordance with Fig 11; Figs 14 and 15 show the pulse transmitter, of the pulse generator in accordance with Fig 11, rotated for a backwards pulse production into different positions relative to the pulse collector of the said pulse generator in accordance with Fig 11; Fig 16 shows a pulse diagram with representation of input and output pulses which can be produced by actuation of the pulse generator shown in Fig 11; Fig 17 shows a variant of the pulse generator shown in Fig 11; Figs 18 and 19 show a pulse transmitter, of the pulse generator shown in Fig 17, rotated for a forwards pulse production into different positions relative to a pulse collector of the said pulse generator in accordance with Fig 17; Figs 20 and 21 show the pulse transmitter, of the pulse generator in accordance with Fig 17, rotated for a backwards pulse production in different positions relative to the pulse collector of the said pulse generator in accordance with Fig 17; Fig 22 shows a pulse diagram with representation of input and output signals which can be produced by actuating the pulse generator in accordance with Fig 17; Fig 23 shows, in a schematic representation, a fourth exemplary embodiment of pulse generator:
Figs 24 to 27 show, in each case in side view on a larger scale, the movement cycle between the elements of a pulse transmitter and collector upon an actuation of the pulse generator in accordance with Fig 23; Fig 28 shows the arrangement of the actuating element of the pulse generator, shown in Fig 23, in an appliance having an electronic digital display; Fig 29 shows, in schematic 1,565,890 1,565,890 elements which are combined into the pulse collector 2, in which respect the sensing elements are formed by electrical contact elements.
The elements of the pulse transmitter 1 and of the pulse collector 2 are mutually rotatable, upon actuation of the pulse generator by means of the actuating element 5, at variable speed and in either direction of rotation for the pulse production; the frequency of the pulses which can be produced in this way is, in this respect, proportional to the relative speed between the elements of the pulse transmitter I and of the pulse collector 2.
Upon actuation of the pulse generator in the aforedescribed way, two electrical contact paths are, through the pulse-producing elements of the pulse transmitter I and the contact elements of the pulse collector 2, closable separately of one another, the pulse-producing elements of the pulse transmitter 1 and the sensing elements of the pulse collector 2 are, for this purpose, angularly mutually offset in their circular path with respect to the axis of rotation of the shaft 6 in such a way that upon, actuation of the pulse generator, pulses which are mutually staggered in time can be produced The nature of the phase shift of these pulses-lead or lag-is dependent on the direction of rotation and ascertainable by the control logic 3 which is connected subsequent to the aforedescribed arrangement, so that the forwards/backwards counter 4, which is in turn connected subsequent to the control logic, can be stepped-on in a clearly defined manner by a forwards or backwards pulse.
The circuit elements of the control logic 3 serve, in addition to direction recognition, at the same time also for suppressing the effect on the pulses of contact chatter which may be produced upon closure of the contact path.
Each of the two contact paths formed by a respective element of the pulse transmitter 1 and of the pulse collector 2 is arranged spatially and functionally in a respective switching path which is connected, in advance of the contact path, to a voltage source and leads, subsequent to the respective contact path, through the control logic 3 to an input of the forwards/backwards counter 4 To reduce the cost of the circuit, the two switching paths are preferably connected via a common conductor to a terminal of the voltage source (not shown in the Figures).
The aforedescribed construction of pulse generator in accordance with the invention is generally applicable to all of the exemplary embodiments hereinafter explained in more detail, so that in all of the Figures the same reference numerals are used for these elements of the pulse generator.
The pulse transmitter 1 of the pulse generator IG 1 shown in Fig I has two groups of four contact surfaces 8/1 to 8/4, 70 and 8/5 to 8/8, respectively, which contact surfaces are arranged, lying in two circular paths concentric with the axis of rotation of the shaft 6 and having different diameters, on a carrier plate 8/0 made of insulating 75 material, and form the pulse-producing elements The first group of contact surfaces 8/1 to 8/4 is arranged in the outermost of said circular paths and the second group of contact surfaces 8/5 to 8/8 80 is arranged in the innermost of said circular paths The contact surfaces of each group are conductively connected to one another and, via a respective common connection A or B, to the control logic 3 Each of the 85 contact surfaces 8/1 to 8/4 of the first group is furthermore offset laterally with respect to the contact surface, radially adjacent to it, of the second group of contact surfaces 8/5 to 8/8, by about 1/3rd of a contact 90 surface width.
i The pulse collector 2 of the pulse generator IGI has two spring contacts 9, 10, respectively, which are rotatable relative to the fixedly-arranged contact surfaces of the 95 pulse transmitter 1 The two spring contacts, 9, 10 are designed as bent leaf springs and are formed integrally (e g by stamping) with an electrically conductive central part 11, which is connected to the drive of the pulse 100 generator in a manner which is hereinafter explained The two spring contacts 9, 10, lie with their free outer ends, 9 ‘, 10 ‘, repectively, on a straight line Y leading through the centre of the axis of rotation of 105 the shaft 6, and said outer ends lie in the respective aforesaid circular paths in which lie the contact surfaces of the pulse transmitter 1 In addition to this, the pulse collector has two further spring contacts, 110 12, 13, respectively, which are likewise designed as leaf springs, and which are designed similarly to the other two leaf springs and are formed integral with the central part 11 in rotationally-symmetrical 115 manner, being staggered with respect to the contacts 9, 10, by 1800 There is also provided a contact plate 14, in the form of a circular-arcuate segment, connected to the (not shown) voltage source, on which plate 120 there rests one of the two pairs of leaf springs The outer free ends 9 ‘ and 10 ‘ of the two spring contacts 9, 10, respectively form with one of the contact surfaces 8/1 to 8/4 in the outer circular path and one of the 125 contact surfaces 8/5 to 8/8 in the inner circular path the two contact paths, which upon actuation of the pulse generator are, by virtue of the geometrically displaced arrangement of the contact surfaces of the 130 S 1565890 5 pulse transmitter 1, closable one after the other to produce temporally-offset, but mutually partially overlapping, pulses.
The two switching paths are connected via the respective spring contacts 9, 10, the central part 11, the spring contacts 12, 13, and the contact plate 14 to the voltage source, and said switching paths lead, subsequent to the two contact paths, via the respective connections A or B through the control logic 3 to a forwards input VE or to a backwards input RE of the forwards/backwards counter 4 The control logic itself comprises two bistable multivibrators, namely a first flip-flop FFI and a second flip-flop FF 2, each of which is arranged, connected logically via a respective inverter 15 or 16 and a respective NOR-gate 17 or 18, in one of the two switching paths The four logical gates 1518 serve for the resetting of the two flipflops FFI and FF 2 as well as for chatter suppression.
The functioning of the pulse generator IGI, shown in Fig 1, will now be explained in more detail with reference to Figs 2 to 6.
Upon actuation of the pulse generator IGI in a direction for forwards pulse production (Figs 2 and 3) (direction of the arrow), the pulse collector 2 is rotated out of a detent position shown in Fig 1 Through cooperation of the outer ends 9 ‘ and 10 ‘ of the respective two spring contacts 9, 10, of the pulse collector 2 with the two laterally mutually-offset contact surfaces 8/3 and 8/7 lying in the direction of rotation, the two contact paths are closed successively in temporally offset manner, namely at the point in time tl (Fig 2) the outer contact path is closed and at the point in time t 2 (Fig 3) the inner contact path is closed.
During further rotation (not shown) of the pulse collector up to a point in time t 3, both contact paths are closed; at a point in time t 3 the outer end 9 ‘ of the spring contact 9 leaves the contact surface 8/3, and at a point in time t 4 the outer end 10 ‘ of the spring contact 10 leaves the contact surface 8/7 of the pulse transmitter I, so that both contact paths are again open after the point in time t 4 The electrical pulses which can be produced by the aforedescribed procedure, and by repetition of such procedure, are shown in Fig 6 In the pulse sequnce IFA, input pulses are shown which are introduced into the control logic via the connection A; in the pulse sequence IFB input pulses are shown which pass into the control logic via the connection B; in the pulse sequence IFV are shown pulses which leave the control logic and are fed into the forwards input VE of the forwards/backwards counter 4 in the pulse sequence IFR are shown pulses which leave the control logic and can be fed in via the backwards input RE into the forwards/backwards counter 4 The pulse sequences IFV and IFR follow from the construction of thte control logic, more especially the logical linkage of the two flip 70 flops FFI and FF 2.
At the point in time tl, i e at the instant of the closure of the first contact path, there is conducted, with the thereby produced pulse 11, a “High”-signal to the input D of 75 the first flip-flop FF 1 At the point in time t 2, i e at the instant of the closure of the second contact path, the first flip-flop FFI is set by the forward edge of the thereby produced second pulse 12, and the pulse 80 which occurs is passed on as forwards pulse VI to the forwards input VE of the forwards/backwards counter 4 At the point in time t 3, i e at the instant of the opening of the first contact path, the flip-flop FFI is 85 reset.
The switching path to the backwards input RE of the forwards/backwards counter remains blocked during the aforedescribed procedure, since the second 90 flip-flop FF 2 does not receive a setting signal.
Upon an actuation of the pulse generator IGI for a backwards pulse production, the pulse collector 2 is rotated out of the detent 95 position shown in Fig 1 relative to the pulse-producing elements of the pulse transmitter 1 in accordance with the arrow direction shown in Figs 4 and 5, and the two contact paths are closed in turn in 100 temporally offset manner one after the other (Fig 6, direction of rotation backwards) In this case, at the point in time tl the inner contact path is closed by the outer end 10 ‘ of the spring contact 10 of the 105 pulse collector 2 engaging the contact surface 8/6 of the pulse transmitter I (Fig 4) and a pulse 13 is produced; and, subsequently, at the point in time t 2 the outer contact path is closed by the outer end 110 9 ‘ of the spring contact 9 of the pulse collector 2 engaging the contact surface 8/2 of the pulse transmitter 1 (Fig 5) and a further pulse I 4 is produced Upon further rotation of the pulse collector, initially both 115 contact paths remain closed and then open again in temporally offset manner one after the other The utilisation of the phase relation of the two pulses 13 and 14 is effected again by the control logic 3 120 Through the pulse 13, a “High”-signal is conducted to the input D of the second flipflop FF 2; and, by the forward edge of the pulse I 4, the second flip-flop FF 2 is then set and the pulse which occurs is passed on as a 125 backwards pulse RI to the backwards input RE of the forwards/backwards counter 4.
The flip-flop FF 2 is, upon the opening of the inner contact path, again reset; the first flipflop, since it does not receive a setting 130 1,565,890 6 1565890 6 signal, remains blocked during this procedure, so that no pulse can pass to the forwards input VE of the forwards/backwards counter 4.
The aforedescribed procedures for the forwards or backwards pulse production are repeated in the same way upon each closure or opening of further contact paths In the case of this exemplary embodiment of the pulse generator, during one full revolution of the pulse collector 2 the two contact paths are closable eight times.
The overall construction of the pulse generator in accordance with Fig 1 is shown in Figs 7 and 8.
The mechanical parts are, in this respect, arranged in the interior of a housing 19 which comprises a carrier plate 8/0 and a cover hood 19 ‘, and is penetrated axially by the shaft 6 The latter is mounted so as to be rotary in corresponding bores of the carrier plate 8/0 and of the cover hood 19 ‘, outside the housing 19 there is arranged on said shaft the actuating element 5, here a rotary knob Freely rotatably mounted on the shaft 6 and disposed in the interior of the housing is a drive wheel 20 which is produced from insulating material and to the underside or inner side 20 ‘ of which is fastened the pulse collector 2 which is described in detail with reference to Fig 1 As shown in Fig 8, the outer ends 9 ‘, 10 ‘, 12 ‘, and 13 ‘, of the respective spring contacts 9, 10, 12, 13, are, in order to ensure a reliable pulse transmission, fork-shaped in design and bent down towards the carrier plate 8/0, on the inner surface 8/01 of which are arranged the contact surfaces of the pulse transmitter 1 as well as the contact plate 14 Provided on the drive wheel 20 are stop teeth 7 ‘ which, together with a stop spring 7 ” engaging said teeth, constitute the detent mechanism 7 hereinbefore mentioned, through which detent mechanism the elements of the pulse collector are arrestable, when the pulse generator is not actuated, in a position between two neighbouring contact surfaces of the pulse transmitter 1-as shown in Fig 1 Integral with the drive wheel 20 is a pinion 21, which is part of a transmission gearing having two further toothed wheels 22 and 23 and which enables, depending on the transmission ratio, there to be produced, for example, approximately 60 to 90 impulse transmissions per revolution of the rotary knob constituting the actuating element 5.
In Figs 9 and 10 is shown a pulse generator basically of the same construction as the pulse generator shown in Figs 7 and 8; the simple transmission gearing is however, in the case of this variant, replaced by a planetary gearing, which comprises an annulus 24, integral with the cover hood 19 ‘ of the housing 19 and having internal teeth 24 ‘, and two planet wheels 25 and 26, which engage the internal teeth 24 ‘ of the annulus 24 and the pinion 21 on the drive wheel 20; both planet wheels 70 25, 26 are rotatably mounted on bearing pivots 28 on an entrainment disc 27 which is anchored securely on the shaft 6 The shaft 6, which in this case also forms a central shaft of the planetary gearing, can either be 75 actuatable by a rotary knob (Fig 8) or be connected to an adjusting motor the speed of which is variable.
The connections A and B as well as theconnection to the voltage source are 80 conducted, in a manner which is not shown, through the carrier plate 8/0 out of the housing 19, for example as plug pins or sockets for receiving plugs The control logic 3 and the forwards/backwards counter 85 4 can therefore be coupled-up, separately from the mechanism, on the outside of the housing 19; it is, however, readily also possible to arrange these electronic components inside the housing 19 90 Shown schematically in Fig 11 is a second exemplary embodiment of a pulse generator which is designated by IG 2 and which differs, with respect to the exemplary embodiment in accordance with Fig 1, in 95 the constructional design of the pulse transmitter 1 and of the pulse collector 2.
The outer construction of this pulse generator IG 2 is not specifically shown as it corresponds largely to the arrangements 100 shown in Figs 7 and 8 or 9 and 10.
In this second embodiment, instead of the pulse collector being rotatable, the pulse producing contact surfaces 8/1 to 8/8 of the pulse transmitter I are arranged on the 105 underside or inner side 20 ‘ of the drive wheel 20, which forms the carrier disc, in a circular path concentric with respect to the axis of rotation the contact surfaces 8/1 to 8/8 are integral with, and prqject radially 110 outwards from, an electrically conductive slip ring 29, on which rests an outer free end of a contact spring 30 connected to the positive terminal of the (not shown) voltage source and clamped at one end 115 The sensing elements of the pulse collector 2 of this exemplary embodiment are formed by two spring contacts 31 and 32, in which respect the first spring contact 31 is connected to the control logic 3 via the 120 connection A and the second spring contact 32 is connected to the control logic 3 via the connection B, which control logic in this case has the same construction as in Fig 1.
Both spring contacts 31, 32 are leaf springs 125 which are clamped at one end to stationary carrier plate 8/0 and which are arranged parallel to one another and which lie at their free outer ends 31 ‘, 32 ‘, which are spatially mutually offset, in the circular path of the 130 1.565 890 1,565,890 contact surfaces 8/1 to 8/8 of the pulse transmitter 1, in such a way that the two contact paths are successively closable, upon actuation of the pulse generator IG 2 in a direction of rotation, for the production of temporally offset, mutually partiallyoverlapping pulses.
Shown in Figs 12 and 13 are two positions of the pulse transmitter I rotated, for a forwards pulse production, in the shown direction of the arrow, with respect to the pulse collector 2 Upon actuation of the pulse generator IG 2, initially the first contact path is closed by the first contact surface 8/1 engaging the outer end 31 ‘ of the spring contact 31 (Fig 12), and subsequently the second contact path is closed by the contact surface 8/6 engaging the outer end 32 ‘ of the spring contact 32 (Fig 13) Upon further rotation of the pulse transmitter, both contact paths remain transiently closed, before they open again one after the other There are shown in Figs.
14 and 15 two positions of the impulse transmitter I rotated with respect to the pulse collector 2-but in this case for a backwards pulse production in the arrow direction shown in said Figures Upon actuation of the pulse generator, initially the one contact path is closed by the contact surface 8/5 engaging the outer end 32 ‘ of the spring contact 32 (Fig 14) and subsequently the other contact path is closed by the contact surface 8/8 engaging the outer end 31 ‘ of the spring contact 31 ‘ Upon further rotation of the pulse transmitter, both contact paths remain transiently closed, before they are again opened one after the other.
The pulses which can be produced both in the forwards and backwards direction of rotation correspond basically to those which can be produced by the pulse generator in accordance with Fig 1, so that the pulse diagram plotted with reference to the functioning thereof-Fig 6-applies in the same way also in the case of this second exemplary embodiment, but for the sake of clarity is shown again in Fig 16.
Fig 17 shows a third exemplary embodiment IG 3 of a pulse generator This corresponds largely to the pulse generator 1 G 2 shown in Fig 11, so that hereinafter, with reference to the drawings, there are emphasised only the differences which result from a simplified construction of the control logic 3.
In the case of this pulse generator 103, the control logic 3 consists only of the two flip-flops FFI and FF 2, which in this case also, but omitting the four logical gates 15 to 18, are linked logically together, in which respect the negated output 5 ‘ of each of the two flip-flops FFI and FF 2 is back coupled to the input D of the other flip-flop.
The logical gates 15 to 18 are replaced by a mechanical reset contact 33, which is connected via a connection 34 to the reset inputs R of both flip-flops FFI and FF 2.
The reset contact 33 is a leaf spring which is 70 clamped at one end and which lies at its free outer end 33 ‘ in the circular path of the contact surfaces 8/1 to 8/8 of the pulse transmitter I and co-operates with the contact surfaces in such a way that the two 75 flip-flops are respectively resettable with the contact paths to A,B, open Such a resetting is shown in Fig 17, in which the reset contact path between the outer end 33 ‘ of the reset contact 33 and one of the contact 80 surfaces 8/1 to 8/8 is closed; this depicted reset position corresponds at the same time to a detent position of the drive wheel 20.
The functioning positions, shown in Figs.
18 to 21, of the pulse transmitter 1 85 correspond respectively to those of Figs 12 to 15, in which respect, however, in this case there is shown additionally the position of the reset contact 33 with respect to the contact surfaces of the pulse transmitter 1 90 The modified control logic 3 brings about a pulse diagram which is somewhat different from that of Fig 16 and which is shown in Fig 22 The said difference relates merely to the pulse sequences IFV and IFR; the 95 pulse sequences IFA and IF 1 B are identical to those of Fig 16 Designated by Rl is a reset pulse sequence in which is shown the reset pulse RSI which can be produced upon each closure of a reset contact path 100 Upon closure of the first contact path (direction of rotation forwards, arrow direction as in Figs 18 and 19), there is produced at the point in time tl a first pulse II which passes via the connection A and 105 the timing input into the flip-flop FF 1, whereby this latter is set and the pulse which recurs is passed on as forwards pulse VI to the forwards input VE of the forwards/backwards counter 4 The second 110 pulse 12, which is produced by the temporally staggered closure of the second contact path, remains ineffective, since there is at the input D of the second flip-flop FF 2, at the point in time t 2, a “low”-signal 115 and the flip-flop FF 2 is thus not set The opening of the two contact paths at the points in time t 3 and t 4 does not have any effect on the driven pulse, since the flip-flop FFI is still set The resetting of the latter is 120 accomplished upon closure of the reset contact path at the point in time t 5, in which respect the end of the forwards pulse coincides with the forward edge of a reset pulse RSI 125 Upon backwards pulse production (Figs.
and 21 in the direction of the arrow, Fig.
22 direction of rotation backwards), there is produced, upon closure of the one contact path at the point in time t I, a pulse 13, which 130 8 I 565890 8 passes via the connection B and the timing input into the flip-flop FF 2, whereby the latter is set and the pulse which occurs is passed as a backwards pulse RI to the backwards input RE of the forwards/backwards counter 4 Here too the second pulse 14, which is produced by closure of the other contact path at the point in time t 2, remains ineffective, since at the input of the first flip-flop FF 1 there is now a “low”-signal, whereby the flip-flop FFI is not set; moreover, here too the opening of the two contact paths at the points in time t 3 and t 4 does not take effect on the driven pulse, since the flip-flop FF 2 is reset only at the point in time t 5, upon closure of the reset contact path, by the reset pulse RSI which is thereby produced and the forward edge of which coincides with the end of the driven pulse.
The outer ends 31 ‘ and 32 ‘ of the two spring contacts 31, 32 of the pulse collector 2 can, in accordance with a variant (not shown) of the pulse generator IG 3, so lie in the circular path of the contact surfaces 8/1 to 8/8 of the pulse transmitter 1 that upon actuation of the pulse generator, through consecutive closure of the two contact paths, temporally staggered, but mutually non-overlapping pulses can be produced.
Shown schematically in Fig 23 is a fourth exemplary embodiment IG 4 of a pulse generator The pulse transmitter 1 of this is here, unlike the embodiments hereinbefore described, a cam disc 35, of insulating material, which is mounted on the shaft 6 and has a number of mechanical switching cams N, which lie in a circular path, concentric with respect to the shaft 6, at uniform intervals with gaps Z The pulse collector 2 consists, in this case, of two spring contacts 36 and 37, which are formed by two leaf springs which are each clamped at one end These spring contacts are fastened, in parallel relationship, side-byside on the carrier plate 8/0 and are connected, via a connection which is common to both, to the positive terminal of the voltage source (not shown) The free outer ends 36 ‘ and 37 ‘, bent towards the carrier plate 8/0, of the two spring contacts 36, 37, are co-operable, for the formation of the two contact paths, with opposed contacts 39 and 40, which, in the form of contact surfaces, are arranged on the carrier plate 8/0 and are connected via the two connections A and B to the control logic 3 (not shown here) which is identical to that shown in Fig 1 The two spring contacts have, in addition, projections 36 “, 37 “, respectively, which projections are bent in V-shaped manner and are spatially mutually offset and via which said spring contacts are engageable into one of the gaps Z between two switching cams N, in the manner shown on a larger scale in Fig 24 Upon actuation of the pulse generator IG 4 the spring contacts are successively deflectable in temporally offset manner by one of the 70 cams N and can be pressed against the respective opposed contacts 39, 40 The cam disc 35 has on the outside a knurling 41, with which a finger can be engaged for the actuation of the disc, and, as shown in Fig 75 28, said disc protrudes, to form an actuator 5, from a housing 42 of an apparatus 43 having electronic digital display means 44.
The cams N and the gaps Z have, together with the respective two projections 36 “, 37 ” 80 on the two spring contacts 36, 37, the additional function of a detent mechanism.
One stop position is shown in Fig 24 There are shown in Figs 25 to 27 three consecutive positions of the two spring 85 contacts 36 and 37 upon actuation of the cam disc 35, in the direction of the arrow, for forwards pulse production In Fig 25, the spring contact 37 is deflected by a cam N and a contact path is closed; in this way 90 there is produced a first pulse II which passes via the connection A into the control logic In Fig 26 the second spring contact 36 also is deflected by the same cam N and thus the second contact path also is closed; 95 in this way there is produced a second pulse 12 which passes via the connection B into the control logic In Fig 27 the first contact path is already open again, while the second contact path is still closed The next 100 position, namely the stop position, is not shown by a further Figure, since the position of the spring contacts then corresponds to the position shown in Fig.
24 105 No Figures are provided showing the sequence in backwards pulse production, since in this respect merely the sequence of the deflection of the spring contacts 36, 37, and therewith of the closure of the 110 respective ones of the two contact paths, changes.
In the case of the pulse generator IG 4, a control logic in accordance with that shown in Fig I is connected to the two 115 connections A and B, and therefore here also the pulse diagram shown in Fig 6 applies.
A further pulse generator IG 5, shown only partially in Fig 29, corresponds largely 120 to the pulse generator IG 4 (Fig 23), with basically merely the difference that the two spring contacts 36 and 37 are arranged not directly side-by-side, but act on mutually opposite locations of the cam disc; in 125 accordance with such arrangement of the spring contacts the opposed contacts are correspondingly spaced on the carrier plate 8/0 The temporally offset deflection of the two spring contacts 36 and 37 upon 130 1,565,890 1,565,890 actuation of the pulse generator IG 5 fully corresponds with the procedures shown in Figs 25 to 27; the deflection itself is effected, however, in this case by two cams N of the cam wheel 35 A further difference is that a rotary knob is provided as the actuating element 5.
There is shown in Fig 30 an arrangement of such a rotary knob as an actuating element of a pulse generator arranged in the interior of a housing 45 of an apparatus 46 having electronic digital display means 47.
A sixth exemplary embodiment IG 6 of a pulse generator is shown in Fig 31 This pulse generator IG 6 has the same control logic 3 as the pulse generator IGI (Fig 1); beyond that it corresponds largely with the pulse generator IG 5 The cam disc 35 constitutes at the same time a drive wheel; the deflection of the two spring contacts 36 and 37 is effected radially against the opposed contacts 39 and 40 which are in this case leaf springs which are each clamped at one end and are connected via the connections A and B to the control logic 3.
The two spring contacts 36 and 37 at the same time serve, in the case of this embodiment, as stop springs and are engageable, mutually offset in the direction of rotation, via their outer ends 36 ‘ and 37 ‘, bent in V-shaped manner, into the cam track of the cam disc 35, so that the two contact paths are, upon actuation of the pulse generator, closable in temporally offset manner one after the other There are shown in Figs 32 and 33 different positions of the cam wheel 35 rotated, in the direction of the arrow, for a forwards pulse production In Fig 32, the first contact path is closed and a pulse II (Fig 36) is produced, in Fig 33 the second contact path also is closed and a pulse 12 is produced.
There are shown in Figs 34 and 35 different positions of the cam wheel, rotated in the direction of the arrow, for a backwards pulse production In Fig 34 the one contact path is closed and a pulse 13 is produced; in Fig 35 the other contact path also is closed and a pulse 14 is produced.
These pulses which can be produced in this way are indicated in the pulse diagram in accordance with Fig 36, which corresponds with the pulse diagram in accordance with Fig 6, so that a discussion of the pulse diagram, shown here once more only for the sake of clarity, is superfluous.
This pulse generator IG 6 can be arranged in a housing such as that shown in Figs 7 and 8, or 9 nd 10, and can also be provided with the further elements shown there.
There is shown in Fig 37 a further exemplary embodiment IG 7 of a pulse generator The pulse transmitter 1 of this pulse generator IG 7 consists, in the same way as that of the pulse generator IGI, of two groups of four contact surfaces 8/1 to 8/4 and 8/5 to 8/8 which are connected together conductively and which are arranged on the carrier plate 8/0 to lie in two circular paths which lie concentrically with respect to the axis of rotation of the shaft 6.
The first group of contact surfaces 8/1 to 8/4 is, in this case, arranged to lie in an outer circular path and is connected to a first input VRKE of the forwards/backwards counter 4, into which, unlike the hereinbefore-described embodiments, the control logic is integrated The second group of contact surfaces 8/5 to 8/8 is arranged to lie in an inner circular path and is connected via an electronic pulse former 48 to a second input of the forwards/backwards counter 4, which forms a counting pulse input ZE The two groups of contact surfaces are arranged in the respective circular paths with each group extending over an angular range of about 1500, which ranges overlap in an end region subtending about 600; the contact surfaces 8/3 and 8/4, 8/5 and 8/6, which are arranged in this overlap region in the respective inner and outer circular paths are laterally mutually offset without overlap There is provided a contact plate 49 which is connected to a terminal of the voltage source (not shown) and which is adjacent with slight lateral spacing, to an end of each of the respective angular regions in which lie the contact surfaces 8/1 to 8/4 as well as 8/5 to 8/8 The pulse collector 2 of the pulse generator IG 7 is composed of two contact bars 50 and 51 which are fastened in crossed manner on the drive wheel 20 and which have different lengths corresponding respectively to the diameter of the inner and outer circular paths in which the contact surfaces lie; and said bars rest on the contact plate 49, which is common to both; the first contact bar 50 is, in this respect, fastened securely on the drive wheel 20 and the second contact bar 51 is fastened with rotational play on the same, in which respect this rotational play is limited by entrainment pins 53 which engage into elongate holes 52 of the second contact bar.
Through this rotational play between the two contact bars 50 and 51, there is possible a relative angular displacement between the said bars upon a change of the direction of rotation, in such a way that the two contact paths, upon actuation of the pulse generator IG 7 in a direction of rotation for forwards pulse production, are successively closable by mutually non-overlapping pulses, and upon actuation of the pulse generator in a direction of rotation for the backwards pulse production, are successively closable by mutually overlapping pulses.
There is shown in Figs 38 and 39 two 1,565,890 positions of the pulse collector 2 rotated, for backwards pulse production, in the direction of the arrow out of a stop position shown in Fig 37, in the situation shown in Fig 38 it is evident that the first contact bar has already been rotated by a specific angle, while the second contact bar 51 is still at rest Both contact paths are still open in this position of the contact bars; in the situation shown in Fig 39, both contact bars and 51 have been displaced and the two contact paths are closed; in this way a counting pulse and a direction pulse are produced, which are both indicated, along with corresponding indication of their type, in the pulse diagram in accordance with Fig.
42 Through the simultaneous presence of a counting and direction pulse, the control logic integrated in the forwards/backwards counter 4 recognises the backwards direction of the counting pulse, which is indicated in Fig 42 by the direction of the arrow designated “backward” Upon further rotation of the pulse collector 2, both contact paths open again, temporally offset one after the other There is shown in Figs 40 and 41 two positions of the pulse collector 2 rotated, for the forwards pulse production, in the direction of the arrow out of the stop position shown in Fig 37; it can be gathered from Fig 40 that here too the first contact bar 50 has already been rotated by a specific angle while the second contact bar 51 is still at rest; both contact paths are still open in this position of the contact bars; in Fig 41 the first contact path is closed by the contact bar 50 and a counting pulse is produced; since, however, in the case of this position of the contact bar 50 and also after opening of the first contact path, the second contact path is still not closed and thus no direction pulse is produced, the control logic integrated in the forwards/backwards counter recognises, for this counting pulse, the forwards direction The closing of the second contact path therefore remains without any influence for the pulse production in the forwards direction.
The pulses produced by each of the aforedescribed seven pulse generators leave the output side (shown by an arrow) of the forwards/backwards counter 4 as switching, counting, adjusting or similar pulses which can be fed into an electronic circuit arrangement, for example for the control of the content of further counters or stores, and are at the same time representable via an electronic digital display coupled with these These output pulses can, however, also serve merely for the adjustment or correction of a digital display One possibility of use can, for example, be the adjustment of the transmitter frequency in the case of a radio apparatus, the required value of which can be gathered from a table and the setting of which can be followed visually via an electronic digital display serving as monitor Further uses are time-of-day and waking-time setting in the case of timepieces or the setting of a rated value in an arbitrary kind of counting or registering apparatus.
In conclusion, it is pointed out that the invention is not restricted only to the exemplary embodiments shown, but other embodiments within the scope of the invention are conceivable This applies to the same extent also to the afore-mentioned possibilities of use of the invention.

Claims (23)

WHAT WE CLAIM IS: 80

1 An electromechanical pulse generator for producing electrical pulses for the adjustment of an electronic digital display, characterised in that the pulse generator comprises a pulse transmitter, a pulse 85 collector, control logic, and a forwards/backwards counter, in that the pulse transmitter has a plurality of pulseproducing elements, in that the pulse collector has a plurality of sensing elements 90 which are co-operable with the pulseproducing elements of the pulse transmitter and which are electrical contacts, in that the elements of the pulse transmitter and of the pulse collector are rotatable relatively to 95 each other manually or by a motor at a variable speed in either desired direction of rotation and in that at each rotary step at least two electrical contact paths are closable separately from one another, in 100 that the contact paths are spatially associated with one another in such a way that upon rotation of the elements of the pulse transmitter and the pulse collector relatively to one another temporally offset 105 pulses can be produced, the frequency of the pulses which can be produced in this way being proportional to the relative speed between the pulse transmitter and the pulse collector and the type of the phase shift 110 lead or lag-being dependent on the direction of rotation, and in that the produced pulses can be fed for the evaluation of their phase shift into the control logic and can be passed on to the 115 forwards/backwards counter, arranged subsequent to the control logic, for the control of the said counter in the forwards or backwards direction.

2 An electromechanical pulse generator 120 as claimed in Claim 1, characterised in that the pulse-producing elements of the pulse transmitter are arranged at uniform spacings to lie in a circular path concentric with respect to an axis of rotation about 125 which relative rotation between the pulse transmitter and the pulse collector can take place.

3 An electromechanical pulse generator lo 1,565,890 as claimed in Claim I or 2, characterised in that there is provided a detent mechanism which is coupled with a drive shaft of the pulse generator, through which detent mechanism the contact paths for the pulse production are held open when the pulse generator is not actuated, and in that the pulse-producing elements of the pulse transmitter and the sensing elements of the pulse collector are angularly mutually offset in circular paths with respect to the axis of relative rotation between the transmitter and collector, in such a way that at least as regards those pulses which can be produced upon actuation of the pulse generator in the direction of rotation for backwards pulse production by temporally offset closure of the contact paths, the pulses in one of said two contact paths partially overlap the pulses in the other of said two contact paths.

4 An electromechanical pulse generator as claimed in Claim 1, 2 or 3, characterised in that each of the two contact paths is arranged, spatially and as regards its electrical function, in a respective switching path which leads, subsequent to the contact path, through the control logic to an input of the forwards/backwards counter and is connected, in advance of the contact path, to a voltage source.

An electromechanical pulse generator as claimed in Claim 4, characterised in that the two switching paths are connected via a common lead to the voltage source.

6 An electromechanical pulse generator as claimed in any one of the preceding Claims, characterised in that the pulseproducing elements of the pulse transmitter are formed by contact surfaces which are stationarily arranged on an insulating carrier plate, and the sensing elements of the pulse collector are formed by rotary contacts which are connected to a drive shaft of the pulse generator.

7 An electromechanical pulse generator as claimed in any one of Claims I to 5, characterised in that the pulse-producing elements of the pulse transmitter are fixed securely on a rotary insulating carrier wheel connected to a drive shaft of the pulse generator and the sensing elements of the pulse collector are formed by spring contacts fixed stationarily on a stationary carrier.

8 An electromechanical pulse generator as claimed in any one of Claims I to 5, characterised in that the pulse-producing elements of the pulse transmitter are mechanical switching cams of a cam track and are integral with a cam wheel which is connected to a drive shaft of the pulse generator, and in that the sensing elements of the pulse collector comprise two spring contacts which are arranged stationarily on a carrier plate and which engage at different locations of the cam wheel in spatially mutually offset manner into the cam track, in such a way that the two spring contacts can successively be deflected by a cam or 70 cams of said cam track and be forced thereby against respective contact which latter are connected to the control logic.

9 An electromechanical pulse generator as claimed in any one of the preceding 75 Claims, characterised in that the control logic serves, in addition to direction recognition, also for suppression of contact chatter which may be produced upon closure of the contact paths, and has two 80 bistable multivibrators which, logically linked together, are arranged in respective switching paths.

An electromechanical pulse generator as claimed in Claim 9, characterised in that 85 the two bistable multivibrators are logically linked together by a plurality of gates and are resettable thereby.

11 An electromechanical pulse generator as claimed in Claim 9, characterised in that 90 there is provided a reset contact which cooperates with the pulse-producing elements of the pulse transmitter and which is connected to reset inputs of the two bistable multivibrators 95

12 An electromechanical pulse generator as claimed in any one of the preceding claims, characterised in that at least the mechanical parts of the pulse generator are arranged in a housing which is penetrated 100 axially by a drive shaft of the generator, which shaft is drivable manually by means of an actuating element or by a motor and is connected via a transmission gearing to rotating elements of the pulse transmitter or 105 pulse collector, and which shaft forms a bearing axis for carriers of these elements, the axis of said shaft being also the axis of circular paths in which lie the elements of the pulse transmitter or collector 110

13 An electromechanical pulse generator as claimed in Claim 6 or in Claim 10 or 12 insofar as dependent upon Claim 6, characterised in that the pulse transmitter consists of two groups of four contact 115 surfaces, in that the first group of contact surfaces of the pulse transmitter is arranged to lie in an outer circular path and the second group of contact surfaces of the pulse transmitter is arranged to lie in an 120 inner circular path, in that the contact surfaces of each group are conductively connected together and are connected via a common connection respective to each group to the control logic, in that each of 125 the contact surfaces of the first group is laterally offset relative to the contact surface, radially adjacent to it, of the second group of contact surfaces by about 1/3rd of a contact surface width, in that the pulse 130 1 1 1 1 1,565,890 collector has two spring contacts which are a pair of bent leaf springs integral with an electrically conductive central part of the collector, which central part is connected to the drive of the pulse generator, in that the free outer ends of the two leaf springs lie on a straight line through the centre of the axis of rotation about which the collector and transmitter can rotate relatively to each other and lie in the two circular paths of the contact surfaces, in that there is provided a second pair of spring contacts of the same form as the said leaf springs and disposed in rotationally-symmetrical manner, offset by 1800, relative to the latter, said second pair of spring contacts also being integral with the central part, and in that there is provided a contact plate which is in the shape of a segment of circular-arcuate form and which is connected to one terminal of a voltage source, said contact plate being engaged, one pair at a time, by the said two pairs of leaf springs.

14 An electromechanical pulse generator as claimed in Claim 13, characterised in that the aforesaid leaf springs and central part of the pulse collector form a one-piece stamped part which is fastened to a drive wheel which is of insulating material, said drive wheel being rotatably mounted on the drive shaft and having a drive pinion and stop teeth, into which stop teeth there engages a stop spring to control step-wise rotation of the pulse collector.

15 An electromechanical pulse generator as claimed in Claim 7 or in Claim 9, 10 or 12 insofar as dependent upon Claim 7, characterised in that the pulse-producing elements of the pulse transmitter are contact surfaces arranged in star-shaped or radially-projecting manner on the outside of an electrically-conductive slip ring, on which ring there engages a free end of a contact spring which is connected to one terminal of a voltage source, in that the spring contacts of the pulse collector are formed by two leaf springs which are clamped at one end, and in that these leaf springs are arranged parallel to one another and lie with their free outer free ends spatially mutually offset in a circular path in which lie the contact surfaces of the pulse transmitter, in such a way that the two contact paths are successively closable.

16 An electromechanical pulse generator as claimed in Claim 15, characterised in that a reset contact is formed by a leaf spring which is clamped at one end and which lies at its free outer free end in the circular path in which lie the contact surfaces of the pulse transmitter, said reset contact being connected to reset inputs of two bistable multivibrators of the control logic whereby said multivibrators are respectively resettable with the aforesaid contact paths 65 open.

17 An electromechanical pulse generator as claimed in Claim 8 or in Claim 10 or 12 insofar as dependent upon Claim 8, characterised in that provided as spring 70 contacts are leaf springs which are each clamped at one end and which are connected to one terminal of a voltage source A and which at the same time serve as stop springs and, when the cam wheel is in 75 an arrested position, each engage, via a Vshaped projection thereon, into a gap between two adjacent cams eccentrically of the axis of rotation of the cam wheel, and the projections being mutually displaced in 80 the direction of rotation of the cam wheel.

18 An electromechanical pulse generator as claimed in Claim 6 or in Claim 12 insofar as dependent upon Claim 6, characterised in that the pulse transmitter consists of two 85 groups of four contact surfaces, each contact surface being connected conductively to the other contact surfaces in its group, in that the first group of contact surface is arranged to lie in an outer circular 90 path and is connected to a first input of the forwards/backwards counter, and in that said counter has the control logic integrated therein, in that the second group of contact surfaces is arranged to lie in an inner 95 circular path and is connected to a second input, forming a counting pulse input, of the forwards/backwards counter, in that each of the two groups of contact surfaces is arranged in its respective circular path to 100 extend over an angular range of about 1500, in that these angular ranges overlap in an end region by about 600, in that the contact surfaces which are arranged to lie in the inner circular path are offset laterally, 105 without overlap, relatively to the contact surfaces which lie in the outer circular path, in that a contact plate which is connected to one terminal of a voltage source is provided, in that this contact plate is adjacent, with 110 slight lateral spacing, to an end of each of the respective angular regions in which the two groups of contact surfaces lie, in that the pulse collector is provided with two contact bars which are fastened in crossed 115 relationship on a rotary drive plate made of insulating material, in that the two contact bars have different lengths, corresponding respectively to the diameters of the inner and outer circular paths in which the 120 contact surfaces lie, and engage on the contact plate, said plate being common to both bars, in that the first contact bar is fastened securely on the drive plate and the second contact bar is fastened with 125 rotational play to the drive plate, and in that this rotational play is limited by entrainment pins engaging into elongate holes of the second contact bar and makes possible a 1,565,890 rotation of the two contact bars relatively to each other upon the change of the direction of rotation, in such a way that the two contact paths are closable successively independently of the direction of actuation of the pulse generator and upon actuation of the pulse generator in the direction of rotation for forwards pulse production mutually non-overlapping pulses can be produced and upon actuation of the pulse generator in the direction of rotation for backwards pulse production mutually partially overlapping pulses can be produced.

19 An electromechanical pulse generator comprising a rotor, control logic, and a forwards/backwards counter controlled by the control logic, a plurality of conductive paths, connected to the control logic, being provided for conducting pulses, produced by rotation of the rotor, to the control logic, and the arrangement being such that the rotor is rotatable in one direction of rotation to produce a pulse which is supplied to the control logic via one of said conductive paths to cause, by itself or in conjunction with a pulse also produced by rotation of said rotor but supplied to the control logic via a different one of said conductive paths, the forwards/backwards counter to operate in one direction, and that the rotor is rotatable in the direction of rotation opposite to the first-mentioned direction of rotation to produce a pulse which is supplied to the control logic via one of suid conductive paths to cause, by itself or in conjunction with a pulse also produced by rotation of said rotor but supplied to the control logic via one of said conductive paths different from the last-mentioned conductive path, the forwards/backwards counter to operate in a direction opposite to said first-mentioned direction of operation of said counter.

20 An electromechanical pulse generator, as claimed in Claim 19, wherein the control logic comprises two bistable multi-vibrators and the arrangement is such that rotation of the rotor in one direction of rotation produces two temporally-offset pulses which act in conjunction with each other to cause, via a first one of the bistable multivibrators, the forwards/backwards counter to operate in a forwards direction, and that rotation of the rotor in the opposite direction of rotation produces two temporally-offset pulses which act in conjunction with each other to cause, via the other one of said bistable multivibrators, the forwards/backwards counter to operate in a backwards direction.

21 An electromechanical pulse generator, as claimed in Claim 19, wherein the control logic comprises two bistable multivibrators and there is provided mechanical reset switch means operable by rotation of the rotor and connected to reset inputs of the two bistable multivibrators, the arrangement being such that rotation of the rotor in one direction of rotation (a) produces a pulse supplied via a first conductive path to a first one of said bistable multivibrators to cause the forwards/backwards counter to operate in a forwards direction, and (b) subsequently causes operation of the reset switch means to reset said first multivibrator, and that rotation of the rotor in the opposite direction of rotation (a) produces a pulse supplied via a second conductive path to the second one of said bistable multivibrators to cause the forwards/backwards counter to operate in a backwards direction, and (b) subsequently causes operation of the reset switch means to reset said second multivibrator.

22 An electromechanical pulse generator, as claimed in Claim 19, wherein the arrangement is such that rotation of the rotor in one direction of rotation produces two pulses which pass to the control logic via two different inputs to cause the forwards/backwards counter to operate in one direction, and that rotation of the rotor in the opposite direction of rotation produces a pulse which passes to one of said inputs to cause, by itself, the forwards/backwards counter to operate in the direction opposite to said firstmentioned direction of said counter.

23 An electromechanical pulse generator substantially as in any embodiment herein described with reference to the accompanying drawings.
H N & W S SKERRETT, Chartered Patent Agents, Rutland House, 148 Edmund Street, Birmingham B 3 2 LQ.
Agents for Applicants.
Printed for Her Majesty’s Stationery Office, by the Courier Press, Leamington Spa, 1980 Published by The Patent Office 25 Southampton Buildings London, WC 2 A IAY, from which copies may be obtained.

GB51251/77A
1976-12-22
1977-12-09
Electromechanical pulse generator

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1976-12-22

Contact controlled pulse generator

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Electromechanical pulse generator

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AKO-Werke GmbH & Co KG, 7988 Wangen
Pulse transmitter having an electromechanical contact device

CH657959GA3
(en)

1984-08-14
1986-10-15

JP2848595B2
(en)

1986-04-09
1999-01-20
株式会社東芝

Cooking device

JPS6331619A
(en)

1986-07-28
1988-02-10
三洋電機株式会社
Cooker

DE3721460A1
(en)

1987-06-30
1989-01-12
Standard Elektrik Lorenz Ag

PULSE GENERATOR

EP0414899B1
(en)

1988-10-25
1993-05-12
Matsushita Electric Industrial Co., Ltd.
Rotary encoder

US5339297A
(en)

1989-06-19
1994-08-16
Seiko Epson Corporation
Switching arrangement for applying battery voltage to circuitry block in an analog timepiece

US5042017A
(en)

1990-01-16
1991-08-20
Digital Appliance Controls, Inc.
Rotary pulse switch

CH689531B5
(en)

1995-07-17
1999-11-15
GERBER MARCELm
electronic watch with rotating bezel, including wristwatch.

WO2001029946A1
(en)

1999-10-20
2001-04-26
Mitsubishi Denki Kabushiki Kaisha
Control device

JP2006234504A
(en)

2005-02-23
2006-09-07
Denso Corp
Rotation detector

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1964-06-08
1971-02-18
Saba Schwarzwalder Apparate Bau Anstalt August Schwer Sohne GmbH, 7730 Vilhngen

ARRANGEMENT FOR AUTOMATICALLY SWITCHING OFF AN ELECTRIC MOTOR WHEN INTERFERING LOAD TOMENT CHANGES OCCUR

GB1215932A
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1967-03-15
1970-12-16
Plessey Co Ltd
Improvements relating to electric switches

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1968-05-10
1970-03-25
Electronic Components Ltd
Improvements in or relating to Rotary Electrical Switches

US3571535A
(en)

1969-03-10
1971-03-23
Cts Corp
Electric rotary switch with improved stamped contact means

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1969-12-05
1972-03-07
Detection Sciences
Digital timing system

CH569320B5
(en)

1970-03-06
1975-11-14
Rolex Montres

US3621162A
(en)

1970-03-31
1971-11-16
Monsanto Co
Rotatable switch for providing electrical pulses and indicating the direction of switch rotation

JPS5638917B1
(en)

1971-06-23
1981-09-09

JPS532587B2
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1972-07-20
1978-01-30

JPS5653716B2
(en)

1973-07-27
1981-12-21

US4037116A
(en)

1976-08-16
1977-07-19
Sbe Incorporated
Up/down switch and switching signal generator

1976

1976-12-22
DE
DE2658105A
patent/DE2658105B2/en
not_active
Ceased

1977

1977-11-24
BE
BE2056451A
patent/BE861131A/en
not_active
IP Right Cessation

1977-11-25
DK
DK524777A
patent/DK156784C/en
active

1977-12-02
JP
JP14494477A
patent/JPS5380280A/en
active
Pending

1977-12-07
NL
NLAANVRAGE7713562,A
patent/NL174403C/en
not_active
IP Right Cessation

1977-12-09
GB
GB51251/77A
patent/GB1565890A/en
not_active
Expired

1977-12-13
CH
CH1529677A
patent/CH633396A5/en
not_active
IP Right Cessation

1977-12-14
AR
AR270362A
patent/AR213343A1/en
active

1977-12-16
SE
SE7714339A
patent/SE415816B/en
not_active
IP Right Cessation

1977-12-16
IT
IT30815/77A
patent/IT1088782B/en
active

1977-12-21
FR
FR7738584A
patent/FR2375767B1/fr
not_active
Expired

1977-12-21
CA
CA293,547A
patent/CA1089242A/en
not_active
Expired

1980

1980-05-21
US
US06/152,036
patent/US4348753A/en
not_active
Expired – Lifetime

1983

1983-05-09
JP
JP1983069036U
patent/JPH0124639Y2/ja
not_active
Expired

Cited By (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2305012A
(en)

1995-09-11
1997-03-26
Asahi Optical Co Ltd
A pulse generator for a camera

US5790909A
(en)

1995-09-11
1998-08-04
Asahi Kogaku Kogyo Kabushiki Kaisha
Pulse generator having simplified conductor arrangement

GB2305012B
(en)

1995-09-11
1999-05-26
Asahi Optical Co Ltd
A pulse generator and a pulse generator for a camera

Also Published As

Publication number
Publication date

DK156784C
(en)

1990-03-05

NL174403B
(en)

1984-01-02

DE2658105A1
(en)

1978-06-29

CH633396A5
(en)

1982-11-30

DE2658105B2
(en)

1979-03-22

JPH0124639Y2
(en)

1989-07-25

BE861131A
(en)

1978-03-16

CA1089242A
(en)

1980-11-11

NL7713562A
(en)

1978-06-26

AR213343A1
(en)

1979-01-15

IT1088782B
(en)

1985-06-10

NL174403C
(en)

1984-06-01

DK156784B
(en)

1989-10-02

FR2375767B1
(en)

1982-04-16

DK524777A
(en)

1978-06-23

SE415816B
(en)

1980-10-27

SE7714339L
(en)

1978-06-23

JPS5380280A
(en)

1978-07-15

JPS59989U
(en)

1984-01-06

US4348753A
(en)

1982-09-07

FR2375767A1
(en)

1978-07-21

Contact information