GB1428230A - Power assisted manual control systems for emergency brakes of motor vehicles - Google Patents
Power assisted manual control systems for emergency brakes of motor vehiclesInfo
- Publication number
- GB1428230A GB1428230A GB6030573A GB6030573A GB1428230A GB 1428230 A GB1428230 A GB 1428230A GB 6030573 A GB6030573 A GB 6030573A GB 6030573 A GB6030573 A GB 6030573A GB 1428230 A GB1428230 A GB 1428230A
- Authority
- GB
- United Kingdom
- Prior art keywords
- handlever
- fluid
- pivoted
- brake
- brakes
- Prior art date
- 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
Links
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
- B60T13/00—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
- B60T13/10—Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems with fluid assistance, drive, or release
-
- 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
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/08—Brake-action initiating means for personal initiation hand actuated
- B60T7/10—Disposition of hand control
- B60T7/102—Disposition of hand control by means of a tilting lever
- B60T7/104—Disposition of hand control by means of a tilting lever with a locking mechanism
- B60T7/105—Disposition of hand control by means of a tilting lever with a locking mechanism the lock being released by means of a push button
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G7/00—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof
- G05G7/02—Manually-actuated control mechanisms provided with one single controlling member co-operating with one single controlled member; Details thereof characterised by special provisions for conveying or converting motion, or for acting at a distance
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G2700/00—Control mechanisms or elements therefor applying a mechanical movement
- G05G2700/12—Control mechanisms with one controlling member and one controlled member
- G05G2700/16—Mechanisms for conveying motion or signals for or in relation with control mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Braking Elements And Transmission Devices (AREA)
- Handcart (AREA)
- Braking Systems And Boosters (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Braking Arrangements (AREA)
- Regulating Braking Force (AREA)
Abstract
1428230 Combined manual and fluid-pressure brake operation; transmitting mechanism SOC ANON AUTOMOBILES CITROEN 31 Dec 1973 [12 Jan 1973] 60305/73 Headings F2E and F2F A power-assisted manual control system for the emergency brake of a motor vehicle comprises a pivoting control handlever 1, a ratchet wheel 3 associated with a driving pawl 10 and a retaining catch 13, the ratchet wheel being operatively connected to a brake linkage 24, 27, and adapted to be mechanically actuated by the handlever when the latter is reciprocated, a control rod 18 associated with the handlever for releasing the retaining catch, and a fluid distributer valve 35 resiliently connected to the handlever and in communication with a main cylinder 29 for actuating the brake linkage and with a secondary cylinder 42 for actuating the driving pawl 10, the arrangement being such that, when the handlever is actuated in the brake-applying direction F, fluid under pressure is supplied on the one hand to the main cylinder 29 for actuating the brake linkage in the brake-apply direction (leftwards), and on the other hand to the secondary cylinder 42 for subsequently releasing the driving pawl from the ratchet wheel. As shown in Fig. 1, a handlever 1 pivoted at 2 has pivoted to it a rod 6 having a pin-and-slot connection 7, 44 with a plate 5 pivoted about the shaft 4 of a ratchet wheel 3 connected at 24, 27 to the brakes (not shown). Pivoted at 9 to the plate 5 is a driving pawl 10, and pivoted about a fixed pin 14 is a retaining catch 13 which may be manually disengaged from ratchet wheel 3 by rod 18 acting through a two-armed lever 16 pivoted at 17. An hydraulic circuit consists of a reservoir 39, pump 40, slide valve distributer 35, branch conduit 34a, conduit 34, main cylinder 29, flexible hose 41 and secondary cylinder 42 rigid with plate 5. Mechanical application of brakes with zero fluid pressure.-Handlever 1 is pivoted clockwise from the "brakes off" position (Fig. 1) so driving pawl 10 is released from stop 12 and urged by spring 11 into engagement with ratchet wheel 3, Fig. 2. On return of the handlever, wheel 3 is held by catch 13. The handlever is reciprocated between stops 22, 23, so the brakes are progressively applied by movement of linkage 24, 27 in direction f. Combined mechanical and fluid-pressure application.-Clockwise pivoting of handlever 1 always results in raising of spool valve member 36 through traction spring 38, so the output of pump 40, when fluid pressure is available, is connected via cylinder body 37 and conduit 34 with main cylinder 29, Fig. 3, so the brakes are applied via lever 25. Just prior to this happening, driving pawl 10 is released from ratchet wheel 3 by application of pressure fluid to secondary cylinder 42. The fluid pressure in conduit 34 and cylinders 29 and 42 is maintained proportional to the effort exerted on the handlever 1 by supplying fluid through branch conduit 34a to the region above spool valve member 36. The brakes are held applied after mechanical or mechanical-plus-fluid application simply by returning handlever 1 to the position of Fig. 1, where retaining catch 13 retains wheel 3 in the position it has reached with the brake on (Fig. 4, not shown) and fluid pressure in cylinders 29 and 42 is relieved by connection through valve distributer 35 to reservoir 39. For brake release from either kind of application, handlever 1 is first pivoted clockwise slightly, push knob 20 of rod 18 is then depressed against spring 21, and finally handlever 1 is returned to stop 22. This procedure ensures release of catch 13 from ratchet wheel 3, and counter-clockwise rotation of wheel 3, whichever method was used to apply the brakes.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7301114A FR2221313B1 (en) | 1973-01-12 | 1973-01-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1428230A true GB1428230A (en) | 1976-03-17 |
Family
ID=9113228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6030573A Expired GB1428230A (en) | 1973-01-12 | 1973-12-31 | Power assisted manual control systems for emergency brakes of motor vehicles |
Country Status (7)
Country | Link |
---|---|
DE (1) | DE2401096A1 (en) |
ES (1) | ES422199A1 (en) |
FR (1) | FR2221313B1 (en) |
GB (1) | GB1428230A (en) |
IT (1) | IT1008658B (en) |
NL (1) | NL7400142A (en) |
SE (1) | SE406170B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100263473A1 (en) * | 2007-12-05 | 2010-10-21 | Johann Krompass | Motor vehicle parking brake |
US8985711B2 (en) | 2012-01-09 | 2015-03-24 | Ford Global Technologies, Llc | Method for operating a mechanical parking brake |
CN108583549A (en) * | 2018-01-24 | 2018-09-28 | 洛阳市黄河软轴控制器股份有限公司 | The hand braking control mechanism of automobile oil pressure |
FR3128174A1 (en) * | 2021-10-20 | 2023-04-21 | Renault S.A.S | handbrake system |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3806475A1 (en) * | 1988-03-01 | 1989-09-14 | Teves Gmbh Alfred | Handbrake |
DE19936733C2 (en) * | 1999-08-06 | 2001-06-13 | Edscha Ag | Actuator for a parking brake |
DE102013214011B4 (en) * | 2013-07-17 | 2020-07-23 | Volkswagen Aktiengesellschaft | Method for locking a motor vehicle using a mechanical parking brake |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2156290A (en) * | 1936-01-30 | 1939-05-02 | Jr Harvey Hubbell | Vacuum controlled emergency brake operating device |
DE1011748B (en) * | 1953-02-13 | 1957-07-04 | Daimler Benz Ag | Handbrake for vehicles, especially for motor vehicles, supported by an assistant |
DE1069013B (en) * | 1954-03-19 | 1959-11-12 | ||
US3292452A (en) * | 1961-07-04 | 1966-12-20 | Saab Scania Ab | Combined hand brake for vehicles |
FR1520696A (en) * | 1967-03-01 | 1968-04-12 | Power-assisted hand brake | |
FR2057182A6 (en) * | 1969-08-04 | 1971-05-21 | Pointout Rene |
-
1973
- 1973-01-12 FR FR7301114A patent/FR2221313B1/fr not_active Expired
- 1973-12-31 GB GB6030573A patent/GB1428230A/en not_active Expired
-
1974
- 1974-01-07 IT IT4755274A patent/IT1008658B/en active
- 1974-01-07 NL NL7400142A patent/NL7400142A/xx not_active Application Discontinuation
- 1974-01-10 DE DE19742401096 patent/DE2401096A1/en not_active Withdrawn
- 1974-01-11 SE SE7400343A patent/SE406170B/en unknown
- 1974-01-11 ES ES422199A patent/ES422199A1/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100263473A1 (en) * | 2007-12-05 | 2010-10-21 | Johann Krompass | Motor vehicle parking brake |
US8839691B2 (en) * | 2007-12-05 | 2014-09-23 | Edscha Engineering Gmbh | Motor vehicle parking brake |
US8985711B2 (en) | 2012-01-09 | 2015-03-24 | Ford Global Technologies, Llc | Method for operating a mechanical parking brake |
CN108583549A (en) * | 2018-01-24 | 2018-09-28 | 洛阳市黄河软轴控制器股份有限公司 | The hand braking control mechanism of automobile oil pressure |
FR3128174A1 (en) * | 2021-10-20 | 2023-04-21 | Renault S.A.S | handbrake system |
EP4169779A1 (en) * | 2021-10-20 | 2023-04-26 | Renault s.a.s | Hand brake system |
Also Published As
Publication number | Publication date |
---|---|
DE2401096A1 (en) | 1974-07-18 |
NL7400142A (en) | 1974-07-16 |
FR2221313A1 (en) | 1974-10-11 |
IT1008658B (en) | 1976-11-30 |
ES422199A1 (en) | 1976-04-16 |
FR2221313B1 (en) | 1975-10-31 |
SE406170B (en) | 1979-01-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PCNP | Patent ceased through non-payment of renewal fee |