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GB1194743A - Drum Brake with at Least Two Axially Adjacent Pairs of Brake Shoes - Google Patents

Drum Brake with at Least Two Axially Adjacent Pairs of Brake Shoes

Info

Publication number
GB1194743A
GB1194743A GB5298867A GB5298867A GB1194743A GB 1194743 A GB1194743 A GB 1194743A GB 5298867 A GB5298867 A GB 5298867A GB 5298867 A GB5298867 A GB 5298867A GB 1194743 A GB1194743 A GB 1194743A
Authority
GB
United Kingdom
Prior art keywords
shoes
brake
members
expander
pressure members
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
Application number
GB5298867A
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.)
Deutsche Perrot Bremse GmbH
Original Assignee
Deutsche Perrot Bremse GmbH
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 Deutsche Perrot Bremse GmbH filed Critical Deutsche Perrot Bremse GmbH
Publication of GB1194743A publication Critical patent/GB1194743A/en
Expired 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
    • F16D65/38—Slack adjusters
    • F16D65/72—Slack adjusters hydraulic
    • F16D65/74—Slack adjusters hydraulic self-acting in one direction
    • 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
    • F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
    • F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
    • F16D51/20—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots
    • F16D51/24—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes extending in opposite directions from their pivots fluid actuated
    • 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
    • F16D65/02—Braking members; Mounting thereof
    • F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
    • F16D65/08—Bands, shoes or pads; Pivots or supporting members therefor for internally-engaging brakes
    • F16D65/09—Pivots or supporting members therefor
    • F16D65/091—Pivots or supporting members therefor for axially holding the segments
    • 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
    • F16D2051/001—Parts or details of drum brakes
    • F16D2051/006—Braking members arranged axially spaced, e.g. side by side
    • 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

1,194,743. Internal shoe drum brakes. DEUTSCHE PERROT-BREMSE G.m.b.H. 21 Nov., 1967 [23 Nov., 1966; 21 April, 1967], No. 52988/67. Headings F2E and F2F. A brake comprises at least two pairs of shoes disposed axially side by side in a brake drum, the ends of axially adjacent shoes being connected by pressure members 25, 25<SP>1</SP>, Fig. 6, which respectively bear on adjacent shoes, an expander 13 being disposed between the pressure members 25, 25<SP>1</SP> of opposed shoes, rollers 27, 27<SP>1</SP> being interposed between the expander 13 and the pressure members 25, 25<SP>1</SP>, each roller being rotatably connected to a laterally hinged radius rod 24, 24<SP>1</SP>, the pressure members 25, 25<SP>1</SP> being axially displaceable relative to the brake shoes. This ensures that when the expander 13 moves in a direction parallel to the brake drum axis, no axial movement will be transmitted to the brake shoes 3 ... 6. As shown in Fig. 6, the pressure members 25, 25<SP>1</SP> are coupled to the shoes 3 . . . 6 via balls 42 located in recesses in the pressure members 25, 25<SP>1</SP> and in intermediate members 43. The balls 42 are retained by a spring clip 46. Intermediate members 43 engage shoe ends 44 by sliding contact surfaces 45. In Fig. 3 (not shown) members 42, 43 are replaced by hemispherically ended cylinders. Mounting brake shoes.-The shoes 4, 6 (Fig. 4) are located axially by springs 7 bearing against a lipped plate 2 secured to backing member 1. Further spring (Fig. 5, not shown) hold shoes 4, 6 in axial frictional contact. Return springs (Fig. 1, not shown) are fitted to the non- actuated ends of opposite shoes and between the actuated ends and the backing member 1. Fluid pressure control of brakes.-As shown in Fig. 2, hydraulic fluid enters port 33 and displaces a piston 31 against the force of a spring 30. This action forces hydraulic fluid through ports 34, 17 so as to displace piston 18 to the right against the force of spring 20, thus displacing expander 13 (Fig. 6) downwards. A tube 37 located in the end of cylinder 16 co-operates with a valve 32 so as to provide automatic slack adjustment.
GB5298867A 1966-11-23 1967-11-21 Drum Brake with at Least Two Axially Adjacent Pairs of Brake Shoes Expired GB1194743A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED0051620 1966-11-23
DED0052885 1967-04-21

Publications (1)

Publication Number Publication Date
GB1194743A true GB1194743A (en) 1970-06-10

Family

ID=25972521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5298867A Expired GB1194743A (en) 1966-11-23 1967-11-21 Drum Brake with at Least Two Axially Adjacent Pairs of Brake Shoes

Country Status (2)

Country Link
DE (1) DE1555173B1 (en)
GB (1) GB1194743A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2861349D1 (en) * 1978-07-04 1982-01-28 Opel Adam Ag Hold-down spring to maintain the brake shoes against the anchor plate in drum brakes

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE924606C (en) * 1944-08-20 1955-03-03 Hans O Schroeter Shoe or band brakes, especially for motor vehicles
US2655229A (en) * 1951-02-03 1953-10-13 Budd Co Disk brake mechanism
DE1029626B (en) * 1953-11-07 1958-05-08 Stahlwerke Brueninghaus G M B Inner jaw brake with expanding wedge actuation
DE1777673U (en) * 1958-08-26 1958-11-13 Teves Kg Alfred BRAKE ARM.
DE1846495U (en) * 1961-12-07 1962-02-08 Hermann E Mueller K G Dr INNER SHOE BRAKE.
DE1167670B (en) * 1962-01-30 1964-04-09 Teves Kg Alfred Disc brakes, especially for motor vehicles

Also Published As

Publication number Publication date
DE1630280A1 (en) 1971-09-02
DE1630280B2 (en) 1972-11-09
DE1555173B1 (en) 1970-12-10

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees