GB1000968A - Improved automatic adjustment device for a brake - Google Patents

Improved automatic adjustment device for a brake

Info

Publication number
GB1000968A
GB1000968A GB2778961A GB2778961A GB1000968A GB 1000968 A GB1000968 A GB 1000968A GB 2778961 A GB2778961 A GB 2778961A GB 2778961 A GB2778961 A GB 2778961A GB 1000968 A GB1000968 A GB 1000968A
Authority
GB
United Kingdom
Prior art keywords
lever
nut
brake
ratchet
movement
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
GB2778961A
Inventor
John Walter Davis
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.)
Dunlop Rubber Co Ltd
Original Assignee
Dunlop Rubber Co Ltd
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 Dunlop Rubber Co Ltd filed Critical Dunlop Rubber Co Ltd
Priority to GB2778961A priority Critical patent/GB1000968A/en
Publication of GB1000968A publication Critical patent/GB1000968A/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
    • F16D65/567—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut for mounting on a disc brake
    • 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
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/2245—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/64—Levers

Landscapes

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

Abstract

1,000,968. Disc brakes. DUNLOP RUBBER CO. Ltd. July 20, 1962 [Aug. 1, 1961], No. 27789/61. Heading F2E. An automatic adjuster, for a disc brake of the kind comprising a pair of pivoted levers 10, 11 carrying pads 14, and an applying lever 15 pivoted at 16 to one lever 10 and connected by a tie-rod 21 to the other lever 11, comprises a nut 23 rotatable on a threaded portion 22 of the tie-rod and abutting a trunnion block 20 carried by lever 15, a pair of spring pawl plates 28, 29, Fig. 4, having lugs 31 engaging a slot 32 in the outer end of the nut so as to rotate with the latter, and ratchet-wheels 27, 30, the former being engaged with a sleeve 24 which is in turn engaged with block 20 to prevent it rotating, and the latter being rotatable upon movement of the applying lever 15 through the engagement of a peg 33 carried by it with one end of a slot (Fig. 3, not shown) in lever 15. The arrangement is such that upon movement of lever 15 in the brake applying direction beyond a certain amount the end of the slot in lever 15 engages peg 33 and rotates ratchet-wheel 30 to slip over one or more teeth on the pawl plate 29, the assembly of pawl plates 28, 29 and nut 23 being held stationary during such movement by the interengagement of ratchet-wheel 27 with pawl plate 28. Upon subsequent release of the brake the other end of the slot in lever 15 engages the peg 33 and rotates ratchet-wheel 30 in the opposite direction, so that it drives the pawl plate 29 and hence nut 23 to take up slack, pawl plate 28 slipping over one or more teeth of ratchet-wheel 27 during this movement so that return movement of the nut is prevented. A rubber bellows 37 encloses the adjuster completely excepting that an opening is provided for the peg 33 to project through it in sealing relationship. The brake is applied either by a fluid pressure cylinder 18 or a cable 19, both arranged to act on the free end of the lever 15.
GB2778961A 1961-08-01 1961-08-01 Improved automatic adjustment device for a brake Expired GB1000968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2778961A GB1000968A (en) 1961-08-01 1961-08-01 Improved automatic adjustment device for a brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2778961A GB1000968A (en) 1961-08-01 1961-08-01 Improved automatic adjustment device for a brake

Publications (1)

Publication Number Publication Date
GB1000968A true GB1000968A (en) 1965-08-11

Family

ID=10265340

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2778961A Expired GB1000968A (en) 1961-08-01 1961-08-01 Improved automatic adjustment device for a brake

Country Status (1)

Country Link
GB (1) GB1000968A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778712A1 (en) * 1998-05-14 1999-11-19 Bosch Syst Freinage Wear compensator for motor vehicle disc brake
WO2011020460A1 (en) * 2009-08-20 2011-02-24 Schaeffler Technologies Gmbh & Co. Kg Clutch unit having at least one self-adjusting friction clutch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2778712A1 (en) * 1998-05-14 1999-11-19 Bosch Syst Freinage Wear compensator for motor vehicle disc brake
WO2011020460A1 (en) * 2009-08-20 2011-02-24 Schaeffler Technologies Gmbh & Co. Kg Clutch unit having at least one self-adjusting friction clutch

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