GB1357697A - Creation of Inventions and Patents with Artificial Intelligence

GB1357697A – Over-run apparatus for trailers
– Google Patents

GB1357697A – Over-run apparatus for trailers
– Google Patents
Over-run apparatus for trailers

Info

Publication number
GB1357697A

GB1357697A
GB521472A
GB521472A
GB1357697A
GB 1357697 A
GB1357697 A
GB 1357697A
GB 521472 A
GB521472 A
GB 521472A
GB 521472 A
GB521472 A
GB 521472A
GB 1357697 A
GB1357697 A
GB 1357697A
Authority
GB
United Kingdom
Prior art keywords
shoe
spring
brake
lever
bearing
Prior art date
1971-02-24
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
GB521472A
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.)

HAHN FAHRZEUGBAU GmbH

Original Assignee
HAHN FAHRZEUGBAU GmbH
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.)
1971-02-24
Filing date
1972-02-04
Publication date
1974-06-26

1971-02-24
Priority claimed from DE19712108710
external-priority
patent/DE2108710C3/en

1971-04-28
Priority claimed from DE19712120764
external-priority
patent/DE2120764C3/en

1972-02-04
Application filed by HAHN FAHRZEUGBAU GmbH
filed
Critical
HAHN FAHRZEUGBAU GmbH

1974-06-26
Publication of GB1357697A
publication
Critical
patent/GB1357697A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B60—VEHICLES IN GENERAL

B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES

B60T7/00—Brake-action initiating means

B60T7/12—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger

B60T7/20—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer

B60T7/203—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer with automatic brake release or reduction in case of reverse travel, e.g. by means of mechanisms mounted on the draw bar

B60T7/206—Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger specially for trailers, e.g. in case of uncoupling of or overrunning by trailer with automatic brake release or reduction in case of reverse travel, e.g. by means of mechanisms mounted on the draw bar by means of mechanisms mounted on trailer drum brakes

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES

F16D65/00—Parts or details

F16D65/02—Braking members; Mounting thereof

F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor

F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes

F16D65/09—Pivots or supporting members therefor

F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL

F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES

F16D65/00—Parts or details

F16D65/38—Slack adjusters

F16D65/40—Slack adjusters mechanical

F16D65/42—Slack adjusters mechanical non-automatic

F16D65/46—Slack adjusters mechanical non-automatic with screw-thread and nut

Abstract

1357697 Trailer over-run brakes; internal shoe drum brakes HAHN FAHRZEUGBAU GmbH 4 Feb 1972 [24 Feb 1971 28 April 1971] 5214/72 Headings F2E and F2F The internal shoe-drum brake of a trailer overrun apparatus has two brake shoes 8, 9 operable by a spreading device 7, the brake shoe 9, which acts as the secondary shoe during forward movement and as the primary shoe during reverse movement, being resiliently supported by a spring 11 which is adapted to be compressed by an amount which is related to the displacement of the spreading device 7 as caused by maximum overrun displacement S. As shown in Fig. 1, the apparatus has a slide tube 2 slidable in a guide pipe 1 over a path length S and a brake lever 4 engages the end of the slide pipe 2; the lever 4 is attached to a cable 6 by a rod 5 and the cable 6 is attached to the spreading device 7. The brake shoe 8 at its end remote from the spreading device 7 is supported on an adjustable support bearing 10 secured on a brake carrier 19, and the shoe 9 engages in a slot of the bearing 10 at a distance from the bottom thereof. The spring 11 is yoked between holders 21, 22 mounted on the carrier 19 arid a plate 22 is mounted between the holder 21 and the spring 11 and is connected by means of an adjustment screw to an adjustable fork piece 14, which forms with the shoe 9 a joint 13. A draw spring 23 is yoked between holder 20 and shoe 8, and a spring 24 biases the shoes 8, 9 together. The bearing 10 has adjustment screws 12, 15. During forward rotation in direction A overrun braking by operation of the spreading device 7 will, if the power of spring 11 is exceeded, cause the shoe 9 to move towards the bearing 10 to prevent excessive braking resulting in the locking of the trailer wheels. On reversing the slide pipe 2 is pushed into the guide pipe 1 by a distance S, and the brake lever 4 is moved through an angle S 1 . A force exceeding the force of spring 11 causes the shoe 9 to be moved to rest against the bottom of the slot in the bearing 10, and only a very slight braking takes place. The distance travelled by the shoe 9 is related to the distance S. The apparatus also includes a hand brake lever 16 which is connected to a brake draw-rod 17 via a slot, the rod 17 being jointed on to the lever 4; by means of the lever 16 the brake lever 4 may also be pivoted through an angle S 2 to lock the brake. In the embodiment of Fig. 2 (not shown) the spring (11a) is yoked between a peg shaped holder (20a) mounted on the brake shoe (9a) and a plate spring (22a) disposed in a slot (26) defined by a wall part (21a) of the shoe (9a). Two springs (11a) may be disposed on each side of shoe (9a). In the embodiment of Figs. 3 and 4 the support bearing 10b has a bush 35 in which is mounted the pressure spring 11b between rings 20b and 22b. Adjustment nuts 14b and 15b project into the bush 35 and have adjusting screws 37, 43 screwed thereinto. A leaf spring 39 secures the rotational positions of the nuts 14b, 15b. The nut 15b is supported directly on the bush 35 but the nut 14b is movable against spring 11 by a distance related to the path S until it is supported against the bush 35.

GB521472A
1971-02-24
1972-02-04
Over-run apparatus for trailers

Expired

GB1357697A
(en)

Applications Claiming Priority (2)

Application Number
Priority Date
Filing Date
Title

DE19712108710

DE2108710C3
(en)

1971-02-24
1971-02-24

Inner shoe brake for the overrun brake system of trailers

DE19712120764

DE2120764C3
(en)

1971-04-28

Inner shoe brake for the overrun brake system of trailers

Publications (1)

Publication Number
Publication Date

GB1357697A
true

GB1357697A
(en)

1974-06-26

Family
ID=25760710
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB521472A
Expired

GB1357697A
(en)

1971-02-24
1972-02-04
Over-run apparatus for trailers

Country Status (2)

Country
Link

FR
(1)

FR2126205B1
(en)

GB
(1)

GB1357697A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2188110A
(en)

1986-03-18
1987-09-23
Graves John Michael
A collapsing mechanism for a reversing drum brake

1972

1972-02-04
GB
GB521472A
patent/GB1357697A/en
not_active
Expired

1972-02-09
FR
FR7204300A
patent/FR2126205B1/fr
not_active
Expired

Cited By (2)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

GB2188110A
(en)

1986-03-18
1987-09-23
Graves John Michael
A collapsing mechanism for a reversing drum brake

GB2188110B
(en)

1986-03-18
1989-12-06
Graves John Michael
A collapsing mechanism for a reversing drum brake

Also Published As

Publication number
Publication date

FR2126205B1
(en)

1977-07-22

FR2126205A1
(en)

1972-10-06

Contact information