GB1480017A - Hydraulically operated drum brake - Google Patents

Hydraulically operated drum brake

Info

Publication number
GB1480017A
GB1480017A GB3154975A GB3154975A GB1480017A GB 1480017 A GB1480017 A GB 1480017A GB 3154975 A GB3154975 A GB 3154975A GB 3154975 A GB3154975 A GB 3154975A GB 1480017 A GB1480017 A GB 1480017A
Authority
GB
United Kingdom
Prior art keywords
wear
pistons
shoe
abutments
pin
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
GB3154975A
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.)
DBA SA
Original Assignee
DBA SA
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 DBA SA filed Critical DBA SA
Publication of GB1480017A publication Critical patent/GB1480017A/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
    • F16D65/14—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
    • F16D65/00—Parts or details
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/54—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment
    • F16D65/546—Slack adjusters mechanical self-acting in one direction for adjusting excessive play by means of direct linear adjustment for mounting within the confines of a drum brake

Abstract

1480017 Adjusting drum brakes for wear SOC ANON DBA 28 July 1975 [17 Sept 1974] 31549/75 Heading F2E In a drum brake having an automatically extensible strut 32 for adjusting the shoe positions to compensate for wear, and relatively weak centering springs 64 for urging the actuator pistons outwardly in opposition to the relatively strong shoe return spring 52, the abutments 62 of the centering springs are moved as the pistons are progressively extended due to the action of the wear adjuster thereby maintaining the spring tension substantially constant. The abutments are frictionally mounted on rods 58 and are entrained by stop discs 66, carried by the pistons, when the latter move through a distance greater than the normal shoe/drum clearance. The strut bears against a pin 50, has ratchet teeth 44 and is engaged by pawl 46; the ratchet teeth may be replaced by threading in which case the pin 50 is toothed.
GB3154975A 1974-09-17 1975-07-28 Hydraulically operated drum brake Expired GB1480017A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7431331A FR2285546A1 (en) 1974-09-17 1974-09-17 CENTERING DEVICE FOR DRUM BRAKE

Publications (1)

Publication Number Publication Date
GB1480017A true GB1480017A (en) 1977-07-20

Family

ID=9143146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3154975A Expired GB1480017A (en) 1974-09-17 1975-07-28 Hydraulically operated drum brake

Country Status (6)

Country Link
JP (1) JPS5160864A (en)
DE (1) DE2538328C2 (en)
FR (1) FR2285546A1 (en)
GB (1) GB1480017A (en)
IT (1) IT1042269B (en)
SE (1) SE402024B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300842A1 (en) * 1982-01-12 1983-07-21 Lucas Industries P.L.C., Birmingham, West Midlands Internal-shoe drum brake, in particular for motor vehicles
GB2183309A (en) * 1985-11-21 1987-06-03 Lucas Ind Plc Improvements in self-energising disc brakes
CN110360250A (en) * 2019-08-21 2019-10-22 上海韩东机械科技有限公司 A kind of normally closed type butterfly brake with automatic compensation reset function

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2644575C3 (en) * 1976-10-02 1983-12-29 Volkswagenwerk Ag, 3180 Wolfsburg Automatic mechanical adjustment device for inner-shoe drum brakes
DE2660397B1 (en) * 1976-10-02 1981-02-12 Volkswagenwerk Ag Automatic mechanical adjustment device for inner shoe drum brakes
JPS5690520U (en) * 1979-12-14 1981-07-20
DE3244872A1 (en) * 1982-12-03 1984-06-07 Lucas Industries P.L.C., Birmingham, West Midlands SELF-ADJUSTING DEVICE FOR A BRAKE
JPS59187591A (en) * 1983-04-09 1984-10-24 ダスキンフランチヤイズ株式会社 Fixed-quantity extractor for liquid
GB8410422D0 (en) * 1984-04-24 1984-05-31 Automotive Prod Plc Hydraulic wheel cylinder assemblies
DE3925869C2 (en) * 1989-01-12 1999-07-01 Teves Gmbh Alfred Adjustment device for a drum brake
CN114810482B (en) * 2022-04-07 2023-03-24 北京金风慧能技术有限公司 Soft braking device of wind driven generator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1189693A (en) * 1957-01-29 1959-10-06 Disc brake actuated by air or fluid pressure for automotive vehicles
DE1977256U (en) * 1963-01-11 1968-01-18 Teves Gmbh Alfred INDEPENDENT ADJUSTMENT DEVICE.
US3502180A (en) * 1966-12-28 1970-03-24 Aisin Seiki Automatic device for adjusting brake clearance for vehicles
FR2051010A5 (en) * 1970-06-10 1971-04-02 Dba

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3300842A1 (en) * 1982-01-12 1983-07-21 Lucas Industries P.L.C., Birmingham, West Midlands Internal-shoe drum brake, in particular for motor vehicles
GB2183309A (en) * 1985-11-21 1987-06-03 Lucas Ind Plc Improvements in self-energising disc brakes
CN110360250A (en) * 2019-08-21 2019-10-22 上海韩东机械科技有限公司 A kind of normally closed type butterfly brake with automatic compensation reset function
CN110360250B (en) * 2019-08-21 2024-04-26 上海韩东机械科技有限公司 Normally closed butterfly brake with automatic compensation reset function

Also Published As

Publication number Publication date
FR2285546B1 (en) 1978-12-29
FR2285546A1 (en) 1976-04-16
DE2538328C2 (en) 1983-09-29
JPS5160864A (en) 1976-05-27
IT1042269B (en) 1980-01-30
SE7510346L (en) 1976-03-18
DE2538328A1 (en) 1976-03-25
SE402024B (en) 1978-06-12
JPS5744094B2 (en) 1982-09-18

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19950727