GB812003A - Improvements in automatic adjusting devices for brakes, clutches and the like - Google Patents

Improvements in automatic adjusting devices for brakes, clutches and the like

Info

Publication number
GB812003A
GB812003A GB2993755A GB2993755A GB812003A GB 812003 A GB812003 A GB 812003A GB 2993755 A GB2993755 A GB 2993755A GB 2993755 A GB2993755 A GB 2993755A GB 812003 A GB812003 A GB 812003A
Authority
GB
United Kingdom
Prior art keywords
pin
recess
piston
disc
wear
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
GB2993755A
Inventor
Henry James Butler
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 GB2993755A priority Critical patent/GB812003A/en
Publication of GB812003A publication Critical patent/GB812003A/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
    • 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
    • F16D55/228—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 separate actuating member for each 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
    • 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

Landscapes

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

Abstract

812,003. Automatic brake - adjusting mechanism. DUNLOP RUBBER CO. Ltd. Sept. 25, 1956 [Oct. 25, 1955], No. 29937/55. Class 103 (1). [Also in Group XXIV] In a wear adjustment mechanism for vehicle brakes, clutches and the like of the kind comprising a rotatable member and a friction member axially movable to engage the rotatable member, a pin has one end slidably associated with an applying mechanism and its other end slidably movable between two fixed stops such that the pin is engaged by a slidable stop adapted to move relatively to the pin, in the form of a close coiled helical spring engaging the pin with a predetermined degree of interference, such that on continued movement of the mechanism in excess of a restricted distance defined by the fixed stops when the mechanism is operated, compensates for wear of the friction member. In the " spot type " disc brake illustrated, a pin 19 is provided with a head 18 housed between two fixed stops dehned by a cap member 21 and a recess in tne cylinder head 15 respectively. The shank of the pin 19 extends into a recess 23 in the piston 11 and is frictionally gripped with a predetermined degree of interference by a close coiled helical spring 25 fluid pressure in recess 13 forces piston 11 axially in bore 16 of cylinder 12 and forces friction pad into frictional engagement with a rotatable brake disc 1. During this movement the pin 19 is carried with the piston by the interference caused by the helical spring 25 and the head 18 of the pin is drawn axially of the space 22 in the recess 17 to compress Belleville spring 20. Should friction pad wear cause the spring 20 to be fully compressed, continued axial movement of the piston 11 towards the disc 1 will cause helical spring 25 to be drawn axially along the pin to compensate for wear of the friction pad. Upon release of the fluid pressure from the space 13 the resilient annulus 10 which also acts as a dust seal will retract the pad 2 from the disc 1 and the piston 11 will move axially in the bore 16, carrying with it the pin 19, until the head 18 of the pin abuts the base of the recess 17 and the friction pad 2 will be withdrawn from the disc by a distance only equalling the axial depth of the space 22. A further embodiment is disclosed in the Provisional Specification. Specifications 738,034 and 747,972 are referred to.
GB2993755A 1955-10-20 1955-10-20 Improvements in automatic adjusting devices for brakes, clutches and the like Expired GB812003A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2993755A GB812003A (en) 1955-10-20 1955-10-20 Improvements in automatic adjusting devices for brakes, clutches and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2993755A GB812003A (en) 1955-10-20 1955-10-20 Improvements in automatic adjusting devices for brakes, clutches and the like

Publications (1)

Publication Number Publication Date
GB812003A true GB812003A (en) 1959-04-15

Family

ID=10299638

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2993755A Expired GB812003A (en) 1955-10-20 1955-10-20 Improvements in automatic adjusting devices for brakes, clutches and the like

Country Status (1)

Country Link
GB (1) GB812003A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057439A (en) * 1959-05-07 1962-10-09 Rockwell Standard Co Automatic brake adjustment
DE1229862B (en) * 1963-08-21 1966-12-01 Sachsenring Automobilwerke Stepless, automatic adjustment device for brakes operated by pressure medium, especially for motor vehicles
EP0628744A1 (en) * 1993-06-05 1994-12-14 ITT Automotive Europe GmbH Fixed caliper disc brake
CN104930081A (en) * 2015-07-10 2015-09-23 杨崇庆 Normally-closed fixed belleville spring caliper disc brake

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3057439A (en) * 1959-05-07 1962-10-09 Rockwell Standard Co Automatic brake adjustment
DE1229862B (en) * 1963-08-21 1966-12-01 Sachsenring Automobilwerke Stepless, automatic adjustment device for brakes operated by pressure medium, especially for motor vehicles
EP0628744A1 (en) * 1993-06-05 1994-12-14 ITT Automotive Europe GmbH Fixed caliper disc brake
CN104930081A (en) * 2015-07-10 2015-09-23 杨崇庆 Normally-closed fixed belleville spring caliper disc brake

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