GB1183735A - Motor Vehicle Braking Systems. - Google Patents
Motor Vehicle Braking Systems.Info
- Publication number
- GB1183735A GB1183735A GB3219367A GB3219367A GB1183735A GB 1183735 A GB1183735 A GB 1183735A GB 3219367 A GB3219367 A GB 3219367A GB 3219367 A GB3219367 A GB 3219367A GB 1183735 A GB1183735 A GB 1183735A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- movement
- pin
- pivot
- rod
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/30—Controlling members actuated by foot
- G05G1/46—Means, e.g. links, for connecting the pedal to the controlled unit
-
- 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
- B60T13/24—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 the fluid being gaseous
- B60T13/46—Vacuum systems
- B60T13/52—Vacuum systems indirect, i.e. vacuum booster units
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
1,183,735. Brake applying mechanism; fluid-pressure brakes. FORD MOTOR CO. Ltd. 13 July, 1967 [8 Aug., 1966], No. 32193/67. Addition to 1,157,222. Headings F2E and F2F. In an improvement or modification of the invention claimed in Specification 1,157,222 in which the linkage from the brake pedal lever 84<SP>1</SP> to the valve operating rod 66<SP>1</SP> of a servo piston (not shown) includes a first lever 78<SP>1</SP> to which is pivoted a second lever 120, the latter being pivoted at its lower end to a fixed pivot 122. Initial movement of the brake pedal lever 84<SP>1</SP> urges a resilient spring loaded push-pull link 102 to the left to rotate the lever 78<SP>1</SP> in a clockwise direction to pivot about the pin 118. At the same time the brake pedal force attempts to rotate the two levers 78<SP>1</SP> and 120 about the stationary pivot pin 122 and since a sleeve 92 is prevented from rightward movement by an insert 96 secured to the valve housing 56<SP>1</SP>, the upper end of the lever 78<SP>1</SP> and pin 90 now acts as a secondary fulcrum to permit clockwise rotation of the lever 78<SP>1</SP> to result in a leftward arcuate swing movement of the second lever 120 and the lower portion of the lever 78<SP>1</SP> as the pin 118 moves leftwardly to cause a leftward movement of the rod 66<SP>1</SP> until the clearance between the pivot pin 90 and the eyelet 98 is taken up. The travel permitted by the clearance is sufficient to cause the rod 66<SP>1</SP> to actuate the vacuum servomotor (not shown) which causes a leftward movement of the valve housing 56<SP>1</SP> so that both levers 78<SP>1</SP> and 120 are moved counterclockwise about the stationary pivot pin 122 and the brakes are applied. Should a failure occur in the power system continued depression of the brake pedal lever 84 by the vehicle operator will immediately cause a leftward force to be applied through a link 82<SP>1</SP> to the pin 118 to pivot both the levers 120 and 78<SP>1</SP> about the stationary pivot 122 to move actuating rod 66<SP>1</SP> the desired amount to mechanically actuate the brake master-cylinder piston (not shown). A third lever 126 is adapted to be actuated by a rod 136 manually by the driver which effects movement of the levers 78<SP>1</SP> and 120 about the pivot pin 122 to cause a movement of the plunger 66<SP>1</SP> sufficient to initiate movement of the servo piston.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US515404A US3356189A (en) | 1965-12-21 | 1965-12-21 | Minimum travel power brake actuator |
| US570925A US3382676A (en) | 1966-08-08 | 1966-08-08 | Minimum travel hand-or foot-operated power brake actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1183735A true GB1183735A (en) | 1970-03-11 |
Family
ID=27058493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3219367A Expired GB1183735A (en) | 1965-12-21 | 1967-07-13 | Motor Vehicle Braking Systems. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1183735A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5131340B1 (en) * | 1970-03-30 | 1976-09-06 |
-
1967
- 1967-07-13 GB GB3219367A patent/GB1183735A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5131340B1 (en) * | 1970-03-30 | 1976-09-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |