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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 drum

Info

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
Application number
FR7500071A
Other languages
French (fr)
Other versions
FR2296792B3 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to FR7500071A priority Critical patent/FR2296792A1/en
Publication of FR2296792A1 publication Critical patent/FR2296792A1/en
Application granted granted Critical
Publication of FR2296792B3 publication Critical patent/FR2296792B3/fr
Granted legal-status Critical Current

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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

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).
FR7500071A 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 Granted FR2296792A1 (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850459A (en) * 1988-04-19 1989-07-25 Allied-Signal Inc. Electrically operated drum brake
EP0398546A3 (en) * 1989-05-17 1991-05-29 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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850459A (en) * 1988-04-19 1989-07-25 Allied-Signal Inc. Electrically operated 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