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GB2023245A - Automatic readjusting mechanism for servo brakes - Google Patents

Automatic readjusting mechanism for servo brakes

Info

Publication number
GB2023245A
GB2023245A GB7919015A GB7919015A GB2023245A GB 2023245 A GB2023245 A GB 2023245A GB 7919015 A GB7919015 A GB 7919015A GB 7919015 A GB7919015 A GB 7919015A GB 2023245 A GB2023245 A GB 2023245A
Authority
GB
United Kingdom
Prior art keywords
ring
sleeve
slot
rotated
abutment
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
GB7919015A
Other versions
GB2023245B (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.)
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 GB2023245A publication Critical patent/GB2023245A/en
Application granted granted Critical
Publication of GB2023245B publication Critical patent/GB2023245B/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
    • F16D65/40—Slack adjusters mechanical
    • F16D65/42—Slack adjusters mechanical non-automatic
    • F16D65/46—Slack adjusters mechanical non-automatic with screw-thread 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
    • 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
    • F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
    • F16D65/561—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting within the confines of a drum brake
    • F16D65/562—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting within the confines of a drum brake arranged between service brake actuator and braking member, and subjected to service brake force

Landscapes

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

Abstract

An automatic adjustment mechanism for servo-brakes has elements (14', 12', 11, 12, 14) for transmitting thrust between brake shoes and in response to excessive movement in either direction a nut (12 or 12') is rotated on a screw (14 or 14') by a ratchet tooth system (15 or 15') to extend the mechanism. To render the adjustment independent of the direction one of two rings (19 and 19'), say 19, is in one direction carried with a sleeve (11), but the other ring 19' is stopped by an abutment (21') on the housing (10). A pin (24) on the ring (19') penetrates a slot (25') in the sleeve (11) and a slot (27') in a ring (15') which forms part of the ratchet tooth system one slot being axial and the other being oblique. When the ring (19') is stopped by the abutment (21') on the housing (10) the ring (15') is rotated by the pin (24') and when the sleeve (11) returns nut (12') is rotated by ring (15'). A manually operated readjusting mechanism includes a shaft (32), gear wheel (33) crown wheel (22) to rotate the sleeve (11). <IMAGE>
GB7919015A 1978-06-07 1979-05-31 Automatic readjusting mechanism for servo brakes Expired GB2023245B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782825053 DE2825053A1 (en) 1978-06-07 1978-06-07 INDEPENDENT ADJUSTMENT DEVICE WITH CENTERING DEVICE FOR SERVO BRAKES

Publications (2)

Publication Number Publication Date
GB2023245A true GB2023245A (en) 1979-12-28
GB2023245B GB2023245B (en) 1982-11-03

Family

ID=6041286

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7919015A Expired GB2023245B (en) 1978-06-07 1979-05-31 Automatic readjusting mechanism for servo brakes

Country Status (6)

Country Link
AT (1) ATA328379A (en)
DE (1) DE2825053A1 (en)
FR (1) FR2428185A1 (en)
GB (1) GB2023245B (en)
IT (1) IT1120907B (en)
SE (1) SE437552B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054373A1 (en) * 1980-12-09 1982-06-23 Automotive Products Public Limited Company Hydraulic wheel cylinder assemblies
CN114962495A (en) * 2022-05-10 2022-08-30 江苏凯迅达高铁传动技术开发有限公司 Wheel cylinder lubricating system for wedge brake

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113669383B (en) * 2021-08-18 2023-05-26 佗道医疗科技有限公司 Motion joint brake and swing mechanism

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE891362C (en) * 1937-09-24 1953-09-28 Automotive Prod Co Ltd Spreading device for inner brake shoes of motor vehicles
DE1039855B (en) * 1955-08-03 1958-09-25 Perrot Bremse G M B H Deutsche Centering and adjusting device for self-reinforcing inner shoe brakes on motor vehicles
FR1286501A (en) * 1961-04-20 1962-03-02 Perrot Bremse Gmbh Deutsche Improvements to centering and adjustment correction devices for self-reinforcing interior brake shoes, for motor vehicles
DE1575825B1 (en) * 1967-02-28 1970-04-30 Perrot Bremse Gmbh Deutsche Automatic adjustment device for brake shoes of friction brakes
DE1902597B2 (en) * 1968-01-24 1972-02-24 Deutsche Perrot Bremse GmbH, 6800 Mannheim INDEPENDENT ADJUSTMENT DEVICE FOR SERVO BRAKES
GB1367633A (en) * 1970-08-14 1974-09-18 Girling Ltd Abutment assembly for internal shoe vehicle drum brakes
IT1005443B (en) * 1973-03-07 1976-08-20 Perrot Bremse Gmbh Deutsche DEVICE FOR ADJUSTMENT AND CENTERING OF A BRAKE SERVO
DE2340169A1 (en) * 1973-08-08 1975-02-20 Centrax Gears Ltd Automatic disc- and shoe brake adjustment unit - contains two sleeves with toothed edges, and a spring
DE2631704C3 (en) * 1976-07-14 1979-05-17 Deutsche Perrot-Bremse Gmbh, 6800 Mannheim Automatic adjustment device for internal shoe brakes

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0054373A1 (en) * 1980-12-09 1982-06-23 Automotive Products Public Limited Company Hydraulic wheel cylinder assemblies
US4537293A (en) * 1980-12-09 1985-08-27 Automotive Products Plc Hydraulic cylinder assemblies
CN114962495A (en) * 2022-05-10 2022-08-30 江苏凯迅达高铁传动技术开发有限公司 Wheel cylinder lubricating system for wedge brake
CN114962495B (en) * 2022-05-10 2024-04-26 江苏凯迅达高铁传动技术开发有限公司 Wheel cylinder lubricating system for wedge brake

Also Published As

Publication number Publication date
FR2428185A1 (en) 1980-01-04
GB2023245B (en) 1982-11-03
FR2428185B1 (en) 1983-12-30
SE437552B (en) 1985-03-04
IT7923051A0 (en) 1979-05-28
SE7904940L (en) 1979-12-08
ATA328379A (en) 1986-10-15
IT1120907B (en) 1986-03-26
DE2825053A1 (en) 1979-12-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee