GB1095043A - Improvements relating to internal shoe drum brakes - Google Patents

Improvements relating to internal shoe drum brakes

Info

Publication number
GB1095043A
GB1095043A GB507264A GB507264A GB1095043A GB 1095043 A GB1095043 A GB 1095043A GB 507264 A GB507264 A GB 507264A GB 507264 A GB507264 A GB 507264A GB 1095043 A GB1095043 A GB 1095043A
Authority
GB
United Kingdom
Prior art keywords
shoe
lever
finger
screw
ratchet teeth
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
GB507264A
Inventor
Kenneth John Wells
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.)
Girling Ltd
Original Assignee
Girling 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 Girling Ltd filed Critical Girling Ltd
Priority to GB507264A priority Critical patent/GB1095043A/en
Priority to DE1965G0032020 priority patent/DE1917148U/en
Publication of GB1095043A publication Critical patent/GB1095043A/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
    • F16D65/563—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 adjacent to service brake actuator, e.g. on parking brake lever, and not 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
    • F16D2125/60—Cables or chains, e.g. Bowden cables

Landscapes

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

Abstract

1,095,043. Internal shoe-drum brakes. GIRLING Ltd. March 18, 1965 [April 6, 1964], No. 5072/64. Heading F2E. In an internal shoe-drum brake the brake shoes 10, 11 are applied by a lever 24 pivotally mounted by a pin 25 on one shoe 11 and acting on the other shoe 10 through a strut, formed by a screw-threaded portion 31 and a sleeve portion 28, of which the effective length is adjustable and which is adjusted automatically when the angular movement of the lever 24 is actuated by a flexible cable 26 and exceeds a predetermined value owing to wear of the shoe linings. The lever 24 carries a resilient finger 35 which cooperates with ratchet teeth on a nut 33 in screw-threaded engagement with a screwthreaded portion 31 of the strut such that if the finger 35 engages the radial face of a ratchet tooth before it reaches the end of its travel the nut 33 would be rotated angularly to adjust the effective length of the struts sufficient to take up the wear of the linings. When the brake is released the finger will ride over the ratchet teeth. In an alternative embodiment (not shown) the adjustment may be effected on the return movement of the lever, the finger riding over the ratchet teeth on the applying movement. In a further arrangement (not shown) the ratchet teeth may be formed on the periphery of an internally screw-threaded sleeve receiving the inner ends of two aligned, oppositely screw-threaded rods forming the strut.
GB507264A 1964-04-06 1964-04-06 Improvements relating to internal shoe drum brakes Expired GB1095043A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB507264A GB1095043A (en) 1964-04-06 1964-04-06 Improvements relating to internal shoe drum brakes
DE1965G0032020 DE1917148U (en) 1964-04-06 1965-04-06 DRUM BRAKE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB507264A GB1095043A (en) 1964-04-06 1964-04-06 Improvements relating to internal shoe drum brakes

Publications (1)

Publication Number Publication Date
GB1095043A true GB1095043A (en) 1967-12-13

Family

ID=9789234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB507264A Expired GB1095043A (en) 1964-04-06 1964-04-06 Improvements relating to internal shoe drum brakes

Country Status (2)

Country Link
DE (1) DE1917148U (en)
GB (1) GB1095043A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3717227A (en) * 1970-01-30 1973-02-20 Girling Ltd Mechanical couplings
JPS4929992B1 (en) * 1969-11-17 1974-08-08
JPS5114662B1 (en) * 1968-03-22 1976-05-11
US4974708A (en) * 1988-06-27 1990-12-04 Bendix France Drum brake with postponed fitting of the mechanical control cable

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5114662B1 (en) * 1968-03-22 1976-05-11
JPS4929992B1 (en) * 1969-11-17 1974-08-08
US3717227A (en) * 1970-01-30 1973-02-20 Girling Ltd Mechanical couplings
US4974708A (en) * 1988-06-27 1990-12-04 Bendix France Drum brake with postponed fitting of the mechanical control cable

Also Published As

Publication number Publication date
DE1917148U (en) 1965-06-03

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