GB642991A - Improvements in or relating to operating devices for internal shoe drum brakes - Google Patents
Improvements in or relating to operating devices for internal shoe drum brakesInfo
- Publication number
- GB642991A GB642991A GB1265048A GB1265048A GB642991A GB 642991 A GB642991 A GB 642991A GB 1265048 A GB1265048 A GB 1265048A GB 1265048 A GB1265048 A GB 1265048A GB 642991 A GB642991 A GB 642991A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lever
- shoes
- operating means
- brake
- relating
- 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
-
- 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
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
- F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for 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
- F16D2121/00—Type of actuator operation force
- F16D2121/02—Fluid pressure
-
- 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
- F16D2121/00—Type of actuator operation force
- F16D2121/14—Mechanical
-
- 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
- F16D2123/00—Multiple operation forces
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/60—Cables or chains, e.g. Bowden cables
-
- 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
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
- F16D2125/58—Mechanical mechanisms transmitting linear movement
- F16D2125/64—Levers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
642,991. Brake actuators. AUTOMOTIVE PRODUCTS CO., Ltd., and CHOUINGS, L. C. , May 7, 1948, No. 12650. [Class 103 (i)] In an internal shoe-drum brake of the type in which the adjacent ends of two shoes are forced apart by a two-lever mechanism comprising a first lever 33 which is mounted on a fixed pivot 32 at one end and acts at its other end on one of the shoes, and a second lever 34 which is pivoted at a point 35, intermediate its ends, to an intermediate point of the first lever 33, the second lever acting at one end on the other shoe, and being acted upon at its other end by operating means which cause it to turn about the connecting pivot 35 and exert oppositely directed forces which tend to spread the shoes apart, the operating means is such that it acts on the second lever 34 through a member having a rectilinear movement parallel to the plane of the brake. As shown, the operating means comprise a cable 26 which may be used to exert a pull towards the left on end 36 of lever 34 together with a fluid pressure operated split piston 19, 21 exerting a push. The adjacent ends of the two levers 33, 34 are disposed in housings on each side of the back plate 12.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1265048A GB642991A (en) | 1948-05-07 | 1948-05-07 | Improvements in or relating to operating devices for internal shoe drum brakes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1265048A GB642991A (en) | 1948-05-07 | 1948-05-07 | Improvements in or relating to operating devices for internal shoe drum brakes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB642991A true GB642991A (en) | 1950-09-13 |
Family
ID=10008591
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1265048A Expired GB642991A (en) | 1948-05-07 | 1948-05-07 | Improvements in or relating to operating devices for internal shoe drum brakes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB642991A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2758680A (en) * | 1951-02-01 | 1956-08-14 | Porsche Kg | Internally expanding shoe brakes |
FR2726617A1 (en) * | 1994-11-09 | 1996-05-10 | Peugeot | Cable control for vehicle drum brake |
WO1996016276A1 (en) * | 1994-11-21 | 1996-05-30 | Bosch Braking Systems Corporation | Drum-in-hat brake with reverse scissors actuator |
-
1948
- 1948-05-07 GB GB1265048A patent/GB642991A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2758680A (en) * | 1951-02-01 | 1956-08-14 | Porsche Kg | Internally expanding shoe brakes |
FR2726617A1 (en) * | 1994-11-09 | 1996-05-10 | Peugeot | Cable control for vehicle drum brake |
WO1996016276A1 (en) * | 1994-11-21 | 1996-05-30 | Bosch Braking Systems Corporation | Drum-in-hat brake with reverse scissors actuator |
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