GB579108A - Brake shoe adjusting means - Google Patents

Brake shoe adjusting means

Info

Publication number
GB579108A
GB579108A GB2259244A GB2259244A GB579108A GB 579108 A GB579108 A GB 579108A GB 2259244 A GB2259244 A GB 2259244A GB 2259244 A GB2259244 A GB 2259244A GB 579108 A GB579108 A GB 579108A
Authority
GB
United Kingdom
Prior art keywords
shoe
lining
plug
drum
plunger
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
GB2259244A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2259244A priority Critical patent/GB579108A/en
Publication of GB579108A publication Critical patent/GB579108A/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
    • F16D65/58—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with eccentric or helical body

Landscapes

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

Abstract

579,108. Brakes. SCHNELL, S. Nov. 15, 1944, No. 22592. [Class 103 (i)] In an automatic brake-shoe adjusting mechanism'having a plunger member 26 in the brake shoe in constant contact with the drum for effecting the adjustment necessitated by lining wear, the clearance of the shoe is determined by a pin 24 on the shoe web 6 contacting with the arm 17 of a L-shaped lever 16 pivoted to the stationary back plate 2 at 19 and having another arm 18 with a projection 20 engaging a cam surface 21 on the lever 10. The lever 10 is pivoted on an eccentric part of a revolubly adjustable pin 11 which is clamped to the backplate, and is spaced from the arm 17 by a spring 25. The swing of the lever 10 is limited by stops 22, 23 which contact the projection 20. The shoe lining, flange and web are cut away to receive the plunger 26 which carries a plug 28 of friction material preferably slightly harder than the lining, and the plug is flush with the lining 8 when the shoe web 6 contacts with the bottom of the slot 27 in the plunger 26. When the shoe is retracted, the plug remains in contact with the drum, and the web 6 separates from the bottom of the slot to an extent corresponding to the desired clearance of the shoe. During brake applications, the plug 28 is pressed against the drum 1 with the same intensity as the lining, so that the wear of the lining corresponds with the wear on the plug. The additional outward movement of the shoe, consequent on wear, coincides therefore with a corresponding outward movement of the plunger 26 which will allow the spring 25 to push the lever 10 outwardly. This brings a new part of the cam 21 into contact with the extension 20 and causes the arm 17 to swing correspondingly towards the shoe. If the drum expands due to heating, the plunger 26 will be pushed inwardly when the drum cools, thus effecting an adjustment of the arm 17 in a reverse direction. The stop 23 contacts with the extension 20 when the lining is worn out, the absence of subsequent adjustment giving warning of this.
GB2259244A 1944-11-15 1944-11-15 Brake shoe adjusting means Expired GB579108A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2259244A GB579108A (en) 1944-11-15 1944-11-15 Brake shoe adjusting means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2259244A GB579108A (en) 1944-11-15 1944-11-15 Brake shoe adjusting means

Publications (1)

Publication Number Publication Date
GB579108A true GB579108A (en) 1946-07-23

Family

ID=10181933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2259244A Expired GB579108A (en) 1944-11-15 1944-11-15 Brake shoe adjusting means

Country Status (1)

Country Link
GB (1) GB579108A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669328A (en) * 1949-06-28 1954-02-16 Mace Thomas Kemp Vehicle brake

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669328A (en) * 1949-06-28 1954-02-16 Mace Thomas Kemp Vehicle brake

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