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GB747169A - Improvements relating to automatic adjustment mechanism for vehicle brakes - Google Patents

Improvements relating to automatic adjustment mechanism for vehicle brakes

Info

Publication number
GB747169A
GB747169A GB35534/54A GB3553454A GB747169A GB 747169 A GB747169 A GB 747169A GB 35534/54 A GB35534/54 A GB 35534/54A GB 3553454 A GB3553454 A GB 3553454A GB 747169 A GB747169 A GB 747169A
Authority
GB
United Kingdom
Prior art keywords
brake
shoe
drum
automatic adjustment
jan
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
GB35534/54A
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.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Publication of GB747169A publication Critical patent/GB747169A/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
    • F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
    • F16D51/46—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action
    • F16D51/48—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action with two linked or directly-interacting brake shoes
    • 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
    • F16D65/566—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 having a temperature-sensitive element preventing adjustment when brake is hot

Landscapes

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

Abstract

747,169. Internal shoe-drum brakes. GENERAL MOTORS CORPORATION. Dec. 8, 1954 [Jan. 5, 1954; Jan. 5, 1954], No. 35534/54. Class 103 (1). In an internal shoe-drum brake, automatic adjustment for shoe clearance is carried out by a pendant member 50 which is caused to be moved downwardly when the brake shoe movement becomes large by the interengagement of an inclined slot 56 thereon with a pin 25 on the back plate so that a spring pawl 72, Fig. 2, moves over a tooth on the ratchet wheel 41 and turns it to rotate a screw threaded member between the shoe ends. In a modified arrangement the pendant member 50 may be moved upwardly to adjust the brake. Fig. 8 shows an arrangement in which a bi-metallic element 100 is secured to the spring pawl 70 so as to flex the end 72 away from the ratchet wheel if the brake should attain such a temperature that there will be appreciable expansion of the brake drum such as to cause false adjustment.
GB35534/54A 1954-01-05 1954-12-08 Improvements relating to automatic adjustment mechanism for vehicle brakes Expired GB747169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US747169XA 1954-01-05 1954-01-05

Publications (1)

Publication Number Publication Date
GB747169A true GB747169A (en) 1956-03-28

Family

ID=22121233

Family Applications (1)

Application Number Title Priority Date Filing Date
GB35534/54A Expired GB747169A (en) 1954-01-05 1954-12-08 Improvements relating to automatic adjustment mechanism for vehicle brakes

Country Status (1)

Country Link
GB (1) GB747169A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210121A (en) * 1987-09-21 1989-06-01 Automotive Products Plc Automatic adjuster for drum brakes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2210121A (en) * 1987-09-21 1989-06-01 Automotive Products Plc Automatic adjuster for drum brakes
GB2210121B (en) * 1987-09-21 1991-10-16 Automotive Products Plc Drum brakes

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