GB1029800A - Improvements in vehicle braking systems - Google Patents

Improvements in vehicle braking systems

Info

Publication number
GB1029800A
GB1029800A GB4893463A GB4893463A GB1029800A GB 1029800 A GB1029800 A GB 1029800A GB 4893463 A GB4893463 A GB 4893463A GB 4893463 A GB4893463 A GB 4893463A GB 1029800 A GB1029800 A GB 1029800A
Authority
GB
United Kingdom
Prior art keywords
brake
sleeve
lever
shoe
stop
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
GB4893463A
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.)
HEINZ TEVES
Original Assignee
HEINZ TEVES
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 HEINZ TEVES filed Critical HEINZ TEVES
Publication of GB1029800A publication Critical patent/GB1029800A/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
    • F16D65/565—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

Landscapes

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

Abstract

1,029,800. Automatic brake-adjusters. H. TEVES, E. A. TEVES, and M. TAUSEND. Dec. 11, 1963 [Jan. 3, 1963], No. 48934/63. Heading F2E. A duo-servo brake has a turnbuckle-type slack-adjuster interconnecting the end of brake shoes 1 and 2 and whose slack-adjusting sleeve 6 has a unidirectionally operating ratchet wheel 11 engaging a tooth 24 of a lever 10 pivoted on the brake shoe leading at rearward travel and having an end 25 which engages with a stop on the brake carrier when the brake is off. The stop is at one end of a fixed guide-block 5 in bores 22 in which the sleeve 6 is slidably supported. One end of the sleeve in the bore 22 is machined to full diameter and the other end is brought out to the same diameter by a sleeve 17 fixed by a circlip 16, thus forming shoulders 15 against which disc washers 18 and 19 abut. A spring 7 between the washers normally centralizes the adjusting sleeve 6 relative to the block 5. The lever 10 is pivoted at 23 on the shoe 2 and is urged against the stop by a spring 23. When braking at forward travel (as indicated by the arrow) the shoe 1 is dragged by the drum and acts through the adjuster on the shoe 2 to force it against the drum wall so that the shoes, the lever 10, the ratchet wheel and the sleeve all move together releasing the end 25 from the guide stop and compressing the spring 7. When the brake is released the parts return to their initial positions without brake adjustment. When the brake is applied in reverse the shoe 2 acts on the shoe 1 through the adjuster. The end 25 of the lever 10 rides up on the block 5 so that the tooth 24 jumps over one or more teeth of the ratchet 11 depending on the state of wear of the shoes. On release, the spring 7 re-centres the sleeve 6. The end 25 of the lever 10 remains against the stop whilst the lever 10 turns (as shown by the arrow) on its pivot 23 so that the tooth 24 rotates the ratchet wheel 11 to adjust the length of the tappets 8 and 9.
GB4893463A 1963-01-03 1963-12-11 Improvements in vehicle braking systems Expired GB1029800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DET23287A DE1174185B (en) 1963-01-03 1963-01-03 Adjustment screw connection for a duo servo brake, especially for motor vehicles

Publications (1)

Publication Number Publication Date
GB1029800A true GB1029800A (en) 1966-05-18

Family

ID=7550930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4893463A Expired GB1029800A (en) 1963-01-03 1963-12-11 Improvements in vehicle braking systems

Country Status (2)

Country Link
DE (1) DE1174185B (en)
GB (1) GB1029800A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2158044C3 (en) * 1971-11-23 1981-10-15 Alfred Teves Gmbh, 6000 Frankfurt Automatic adjustment device for a duo servo brake
CN107327525B (en) * 2017-07-19 2023-07-21 重庆宗申机车工业制造有限公司 Front disc rear drum CBS braking system and braking stroke distribution structure thereof

Also Published As

Publication number Publication date
DE1174185B (en) 1964-07-16

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