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GB1218243A - Self-adjusting means for friction brakes - Google Patents

Self-adjusting means for friction brakes

Info

Publication number
GB1218243A
GB1218243A GB850468A GB850468A GB1218243A GB 1218243 A GB1218243 A GB 1218243A GB 850468 A GB850468 A GB 850468A GB 850468 A GB850468 A GB 850468A GB 1218243 A GB1218243 A GB 1218243A
Authority
GB
United Kingdom
Prior art keywords
adjuster
pin
housing
sleeves
screw
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
GB850468A
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 GB1218243A publication Critical patent/GB1218243A/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
    • F16D65/52—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
    • F16D65/565—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 diametrically opposite to service brake actuator, and subjected to service brake force
    • 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
    • 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)
  • Bolts, Nuts, And Washers (AREA)

Abstract

1,218,243. Automatic brake adjusters. DEUTSCHE PERROT-BREMSE G.m.b.H. 21 Feb., 1968 [28 Feb., 1967], No. 8504/68. Heading F2E. In an automatic brake adjuster, an adjusting sleeve 3, 3<SP>1</SP> (Fig. 1) is adjustable unidirectionally by virtue of a freewheeling unit including a ratchet tooth system 5 and a spring means in the form of a wave washer 6 relative to a housing 1 to adjust a non-rotatable screw-threaded bolt 4, 4<SP>1</SP> which engages a brake shoe. A ring 7, which is rotatable relative to the adjusting sleeve, surrounds the latter and is coupled to the housing 1 by a pin 9 operating in an inclined slot 8 (Fig. 2) to allow any adjustment to be taken up and retained by the ratchet tooth system 5. Fig. 1 shows the adjuster in a wedge and roller actuator of an internal shoe-drum brake. A one-way acting ball freewheeling unit 10, illustrated in Fig. 3, may be provided to act as a unidirectional locking means. Figs. 6 and 7 show the arrangement of the adjuster in an actuator of a self-energizing internal shoe-drum brake such that two screw-threaded bolts 104, 104<SP>1</SP> are screwed into respective adjusting sleeves 103, 103<SP>1</SP> each of which is provided with a separate ring 107, 107<SP>1</SP>, each of the adjusting sleeves bearing upon each other in a powertransmitting manner and being resiliently centred in the housing, each of the pin and slot arrangements 109, 108a, 109<SP>1</SP>, 108<SP>1</SP>a having an inclined portion 108b and 108<SP>1</SP>b such that, when the pin 109, 109<SP>1</SP> enters the inclined slot portion 108b, 108<SP>1</SP>b, adjustment of the rings 107, 107<SP>1</SP> takes place, the adjusted position being retained by interengaging teeth 105, 105<SP>1</SP> on the abutting faces of the sleeves 103, 103<SP>1</SP> and the rings 107, 107<SP>1</SP> which are maintained in engagement by wave washers 106, 106<SP>1</SP>. The adjusting sleeves 103, 103<SP>1</SP> are secured against unintentional rotation relative to the screw-threaded bolts 104, 1041 by plastics plugs 112, 112<SP>1</SP> acting as locking means.
GB850468A 1967-02-28 1968-02-21 Self-adjusting means for friction brakes Expired GB1218243A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0052406 1967-02-28

Publications (1)

Publication Number Publication Date
GB1218243A true GB1218243A (en) 1971-01-06

Family

ID=7054145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB850468A Expired GB1218243A (en) 1967-02-28 1968-02-21 Self-adjusting means for friction brakes

Country Status (5)

Country Link
AT (1) AT283938B (en)
DE (1) DE1575825B1 (en)
FR (1) FR1555231A (en)
GB (1) GB1218243A (en)
SE (1) SE351708B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112241A1 (en) * 1971-03-13 1972-09-14 Teves Gmbh Alfred Adjusting device
DE2310608A1 (en) * 1972-03-03 1973-09-06 Girling Ltd INNER JAW DRUM BRAKE
CN111022531A (en) * 2019-12-12 2020-04-17 戎华庆 A New Type of Automobile Wedge Brake Device
CN111365386A (en) * 2020-03-20 2020-07-03 戎华庆 A new type of automobile disc brake device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2825053A1 (en) * 1978-06-07 1979-12-13 Perrot Bremse Gmbh Deutsche INDEPENDENT ADJUSTMENT DEVICE WITH CENTERING DEVICE FOR SERVO BRAKES
IT1108495B (en) * 1978-10-06 1985-12-09 Fiat Allis Macch Movi AUTOMATIC CLEARANCE ADJUSTMENT DEVICE FOR A BRAKE IN PARTICULAR FOR A BAND BRAKE OF A VEHICLE FOR EARTH MOVEMENT
IT1118582B (en) * 1979-04-20 1986-03-03 Fiat Veicoli Ind DRUM BRAKE FOR VEHICLES PARTICULARLY TRUCKS
US4535875A (en) * 1982-03-09 1985-08-20 Lucas Industries, Public Limited Company Actuator for an internal shoe drum brake
EP0106502B1 (en) * 1982-09-20 1987-05-13 Eaton Corporation Automatic slack adjuster

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2184683A (en) * 1938-12-02 1939-12-26 Shuman Lewis Brake mechanism
GB1036740A (en) * 1964-06-22 1966-07-20 Bendix Corp Brake adjuster
FR1446565A (en) * 1965-08-19 1966-07-22 Eaton Mfg Co Automatic brake adjustment device of a vehicle

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2112241A1 (en) * 1971-03-13 1972-09-14 Teves Gmbh Alfred Adjusting device
DE2310608A1 (en) * 1972-03-03 1973-09-06 Girling Ltd INNER JAW DRUM BRAKE
CN111022531A (en) * 2019-12-12 2020-04-17 戎华庆 A New Type of Automobile Wedge Brake Device
CN111022531B (en) * 2019-12-12 2024-03-26 浙江睿安汽配有限公司 Novel wedge type brake device for automobile
CN111365386A (en) * 2020-03-20 2020-07-03 戎华庆 A new type of automobile disc brake device

Also Published As

Publication number Publication date
FR1555231A (en) 1969-01-24
AT283938B (en) 1970-08-25
SE351708B (en) 1972-12-04
DE1575825B1 (en) 1970-04-30

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