FR2296792A1 - Double-action drum brake expander - has expander axis at right angles to stub axle and assembly mounted completely within drum - Google Patents
Double-action drum brake expander - has expander axis at right angles to stub axle and assembly mounted completely within drumInfo
- Publication number
- FR2296792A1 FR2296792A1 FR7500071A FR7500071A FR2296792A1 FR 2296792 A1 FR2296792 A1 FR 2296792A1 FR 7500071 A FR7500071 A FR 7500071A FR 7500071 A FR7500071 A FR 7500071A FR 2296792 A1 FR2296792 A1 FR 2296792A1
- Authority
- FR
- France
- Prior art keywords
- expander
- drum
- double
- right angles
- action
- 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.)
- Granted
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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/10—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as exclusively radially-movable brake-shoes
-
- 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
- F16D2121/18—Electric or magnetic
- F16D2121/24—Electric or magnetic using motors
-
- 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
- F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
- F16D2125/34—Mechanical mechanisms converting rotation to linear movement or vice versa acting in the direction of the axis of rotation
- F16D2125/40—Screw-and-nut
-
- 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
- F16D2125/44—Mechanical mechanisms transmitting rotation
- F16D2125/46—Rotating members in mutual engagement
- F16D2125/52—Rotating members in mutual engagement with non-parallel stationary axes, e.g. worm or bevel gears
-
- 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
- F16D2125/66—Wedges
Abstract
The drum brake has the drums mounted for ease of access and maintenance, outboard of the stub axles. In the actuating mechanism, the axis of the expander is at right angles to the axle and the expander can be mounted within the drum. The double-action expander is suitable for pneumatic, hydraulic, or electrical actuation. The piston housings, (4, 5) are rigidly mounted on either side of the stub axle (2) on the arms of the stirrup (3). Between them is mounted transversely and floating, the expander shown as a double-acting screw jack driven (19, 20) by an electric motor (18). The shafts (14, 15) of the jack are driven against the reaction of springs (23, 24) which equalise the jack effort on each brake shoe (6, 7).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7500071A FR2296792A1 (en) | 1975-01-03 | 1975-01-03 | Double-action drum brake expander - has expander axis at right angles to stub axle and assembly mounted completely within drum |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7500071A FR2296792A1 (en) | 1975-01-03 | 1975-01-03 | Double-action drum brake expander - has expander axis at right angles to stub axle and assembly mounted completely within drum |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2296792A1 true FR2296792A1 (en) | 1976-07-30 |
FR2296792B3 FR2296792B3 (en) | 1977-09-30 |
Family
ID=9149376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7500071A Granted FR2296792A1 (en) | 1975-01-03 | 1975-01-03 | Double-action drum brake expander - has expander axis at right angles to stub axle and assembly mounted completely within drum |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2296792A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4850459A (en) * | 1988-04-19 | 1989-07-25 | Allied-Signal Inc. | Electrically operated drum brake |
EP0398546A2 (en) * | 1989-05-17 | 1990-11-22 | General Motors Corporation | Electrically actuated drum brake |
WO2000037819A1 (en) * | 1998-12-18 | 2000-06-29 | Volkswagen Aktiengesellschaft | Transmission-like device for actuating brake shoes |
DE19818157B4 (en) * | 1998-04-23 | 2012-05-16 | Robert Bosch Gmbh | Electromechanical wheel brake device |
-
1975
- 1975-01-03 FR FR7500071A patent/FR2296792A1/en active Granted
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4850459A (en) * | 1988-04-19 | 1989-07-25 | Allied-Signal Inc. | Electrically operated drum brake |
EP0398546A2 (en) * | 1989-05-17 | 1990-11-22 | General Motors Corporation | Electrically actuated drum brake |
EP0398546A3 (en) * | 1989-05-17 | 1991-05-29 | General Motors Corporation | Electrically actuated drum brake |
DE19818157B4 (en) * | 1998-04-23 | 2012-05-16 | Robert Bosch Gmbh | Electromechanical wheel brake device |
WO2000037819A1 (en) * | 1998-12-18 | 2000-06-29 | Volkswagen Aktiengesellschaft | Transmission-like device for actuating brake shoes |
Also Published As
Publication number | Publication date |
---|---|
FR2296792B3 (en) | 1977-09-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |