GB1294827A – – Google Patents
GB1294827A – – Google Patents
Info
Publication number
GB1294827A
GB1294827A
GB1294827DA
GB1294827A
GB 1294827 A
GB1294827 A
GB 1294827A
GB 1294827D A
GB1294827D A
GB 1294827DA
GB 1294827 A
GB1294827 A
GB 1294827A
Authority
GB
United Kingdom
Prior art keywords
lever
rod
cam
pawl
spring
Prior art date
1970-07-01
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
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.)
1970-07-01
Filing date
1971-05-25
Publication date
1972-11-01
1971-05-25
Application filed
filed
Critical
1972-11-01
Publication of GB1294827A
publication
Critical
patent/GB1294827A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
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
F16H—GEARING
F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
F16H63/30—Constructional features of the final output mechanisms
F16H63/34—Locking or disabling mechanisms
F16H63/3416—Parking lock mechanisms or brakes in the transmission
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
B60T1/00—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles
B60T1/005—Arrangements of braking elements, i.e. of those parts where braking effect occurs specially for vehicles by locking of wheel or transmission rotation
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T74/00—Machine element or mechanism
Y10T74/20—Control lever and linkage systems
Y10T74/20576—Elements
Y10T74/20636—Detents
Abstract
1294827 Vehicle-transmission parking brakes; positive detents; transmitting mechanism FORD MOTOR CO Ltd 25 May 1971 [1 July 1970] 16830/71 Heading F2E A parking gear 28 is secured to the output shaft 12, Figs. 2B and 7A, of an automatic transmission 10, 20, and engageable with it is a pawl 116, which is actuated for that purpose by a cam 36 on a cam rod 32 which, in turn, is moved approximately longitudinally by pivoting of a lever 40, Figs. 2A and 3, about the axis of shaft 52. The invention is concerned, inter alia, with the arrangement and location of the lost motion mechanism needed to provide for the situation where the pawl tooth 120 is not aligned with a space 122 on brake application. Lever 40 is secured to shaft 52 for rotation by a manually-operated drive-selection lever 72 into a number of discrete positions governed by teeth 88 on the lever 40 and a spring-urged roller 90. The position of lever 40 shown in full lines in Fig. 2A corresponds to “brake on”. End 100 of rod 32 is bent at right angles and resiliently retained in a slot 98 of an arm 96 of the lever by a torsion spring 84 which at one end 82 urges the lever counterclockwise and at the other end 110 engages a bracket 102 pivoted on the rod end 100. In operation, assuming pawl tooth 120 is opposite a gear tooth 30 when lever 72 is moved to “brake on” position, the cam 36 (and hence rod 32) will be checked before reaching its most extreme rightward position by engagement of cam 36 with pawl 116 in an outer position and with a fixed block 112. Rod end 100 will therefore hold spring end 110 by means of bracket 102, while lever 40 continues to rotate, storing energy in spring 84 by moving its end 82, and moving the end of its slot 98 away from rod end 100; lever 40 finally comes to rest with roller 90 in the last notch. Parking gear 28 is now rotated slightly to align a space with pawl tooth 120, whereupon spring 84 urges rod 32 to the right, causing cam 36 to drive pawl 116 clockwise (Figs. 2B and 7A position), until rod end 100 reaches the closed end of slot 98 once more (Fig. 2A position).
GB1294827D
1970-07-01
1971-05-25
Expired
GB1294827A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US5148370A
1970-07-01
1970-07-01
Publications (1)
Publication Number
Publication Date
GB1294827A
true
GB1294827A
(en)
1972-11-01
Family
ID=21971577
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB1294827D
Expired
GB1294827A
(en)
1970-07-01
1971-05-25
Country Status (4)
Country
Link
US
(1)
US3601230A
(en)
CA
(1)
CA918083A
(en)
DE
(1)
DE2131690A1
(en)
GB
(1)
GB1294827A
(en)
Families Citing this family (23)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS4917163B1
(en)
*
1970-01-17
1974-04-27
JPS5232495B2
(en)
*
1973-04-16
1977-08-22
JPS5316221A
(en)
*
1976-07-27
1978-02-15
Nissan Motor Co Ltd
Park locking device
DE2817168C3
(en)
*
1978-04-20
1982-01-07
Daimler-Benz Ag, 7000 Stuttgart
Device for locking for the various positions of a gearbox, in particular for motor vehicles
JPS595459B2
(en)
*
1978-09-13
1984-02-04
日産自動車株式会社
Automatic transmission parking device
FR2475663A1
(en)
*
1980-02-12
1981-08-14
Renault
LOCKING DEVICE IN STOP POSITION FOR MOTOR VEHICLE
US4369867A
(en)
*
1980-09-11
1983-01-25
Ford Motor Company
Automatic transmission parking brake mechanism
EP0157027B1
(en)
*
1982-03-29
1988-06-01
William Alexander Barr
Means for increasing the safety of parking brake mechanism of automatic transmissions
JPS58207573A
(en)
*
1982-05-28
1983-12-03
Aisin Warner Ltd
Parking mechanism for automatic speed change gear
JPS58207571A
(en)
*
1982-05-28
1983-12-03
Aisin Warner Ltd
Packing mechanism for automatic speed change gear
JPS58207572A
(en)
*
1982-05-28
1983-12-03
Aisin Warner Ltd
Parking mechanism for automatic speed change gear
US4515032A
(en)
*
1982-09-30
1985-05-07
Jsj Corporation
Drop-in type shifter with displaced shift stick
JPS59184049A
(en)
*
1983-03-31
1984-10-19
Aisin Seiki Co Ltd
Parking mechanism for transmission
US4518066A
(en)
*
1983-04-15
1985-05-21
Barr William A
Safety parking brake for automatic transmissions
EP0122750B1
(en)
*
1983-04-15
1988-06-15
William Alexander Barr
Safety parking brake for automatic transmissions
JPS60159452A
(en)
*
1984-01-31
1985-08-20
Fuji Heavy Ind Ltd
Speed change operating mechanism in stepless speed change gear
US5799538A
(en)
*
1995-04-11
1998-09-01
Grand Haven Stamped Products Co. Div Of Jsj Corporation
Shifter with bottom mounted lever
US5630339A
(en)
*
1995-11-02
1997-05-20
General Motors Corporation
Park mechanism for vehicle transmission
DE10052259B4
(en)
*
2000-10-19
2009-10-15
Deere & Company, Moline
Emergency unlocking device for the parking brake of a motor vehicle
US7493999B2
(en)
*
2004-03-22
2009-02-24
General Motors Corporation
Hybrid electro-mechanical transmission park system and method of assembly
JP4861455B2
(en)
*
2009-07-15
2012-01-25
ジヤトコ株式会社
Automatic transmission
DE102017212466A1
(en)
*
2017-07-20
2019-01-24
Zf Friedrichshafen Ag
Parksperrenaktorik with at least one lever element
WO2021260794A1
(en)
*
2020-06-23
2021-12-30
武蔵精密工業株式会社
Transmission device
Family Cites Families (4)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2814361A
(en)
*
1954-09-20
1957-11-26
Int Harvester Co
Motor vehicle parking lock device
BE555490A
(en)
*
1956-03-12
US2860731A
(en)
*
1956-08-02
1958-11-18
Gen Motors Corp
Positive parking brake
US3386532A
(en)
*
1966-01-05
1968-06-04
Ford Motor Co
Parking brake for use in a driveline
1970
1970-07-01
US
US51483A
patent/US3601230A/en
not_active
Expired – Lifetime
1971
1971-05-25
GB
GB1294827D
patent/GB1294827A/en
not_active
Expired
1971-05-31
CA
CA114342A
patent/CA918083A/en
not_active
Expired
1971-06-25
DE
DE19712131690
patent/DE2131690A1/en
not_active
Withdrawn
Also Published As
Publication number
Publication date
US3601230A
(en)
1971-08-24
DE2131690A1
(en)
1972-01-05
CA918083A
(en)
1973-01-02
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Legal Events
Date
Code
Title
Description
1973-03-14
PS
Patent sealed [section 19, patents act 1949]
1978-05-17
435
Patent endorsed ‘licences of right’ on the date specified (sect. 35/1949)
1981-12-23
PCNP
Patent ceased through non-payment of renewal fee
