GB1383299A - Internal shoe drum brakes - Google Patents

Internal shoe drum brakes

Info

Publication number
GB1383299A
GB1383299A GB5434071A GB5434071A GB1383299A GB 1383299 A GB1383299 A GB 1383299A GB 5434071 A GB5434071 A GB 5434071A GB 5434071 A GB5434071 A GB 5434071A GB 1383299 A GB1383299 A GB 1383299A
Authority
GB
United Kingdom
Prior art keywords
shoe
lever
arm
strut
engages
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
GB5434071A
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 GB5434071A priority Critical patent/GB1383299A/en
Priority to ZA728062A priority patent/ZA728062B/en
Priority to AU48923/72A priority patent/AU463615B2/en
Priority to DE2257347A priority patent/DE2257347A1/en
Priority to BR8208/72A priority patent/BR7208208D0/en
Priority to JP47117249A priority patent/JPS5037347B2/ja
Publication of GB1383299A publication Critical patent/GB1383299A/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

Abstract

1383299 Internal shoe drum brakes GIRLING Ltd 22 Nov 1972 [23 Nov 1971] 54340/71 Heading F2E In an internal shoe drum brake a mechanical actuator is provided having an actuating lever 16 directly applying one shoe 14 and applying the other shoe 13 through an adjustable length strut 22 and being mounted on a roller 18 through which passes a roller 17 engaging the back plate 11 providing a reaction point against the back plate 11 for forces acting perpendicular thereto, the reaction point being remote from the pivotal connections between lever 16 and shoes 13, 14. As shown, lever 16 has a finger 19 for applying shoe 13 and is pivotally connected to the forked end 21 of the strut, the other end 23 of which engages the web of shoe 14. Lever 16 may have a lug extending away from the outer end thereof for the shaft 17 to extend therethrough to provide a longer input lever arm between the shaft arm and the connection point of the lever to a distant operating mechanism. An automatic slack adjuster may be provided comprising a ratchet nut 25 threadedly engaging strut part 26, strut 22 also having a hollow cylindrical part 24. A pawl 27 engages the ratchet under the bias of a torsion spring 30 and forms one arm of a follower 28 rotatably mounted on shaft 27, the other arm 29 engaging shoe 13. As the brakes are applied through an hydraulic actuator 12 arm 29 engages the web of shoe 13 and if sufficient lining wear has occurred rotates pawl 27 thereby rotating nut 25 and lengthening strut 22.
GB5434071A 1971-11-23 1971-11-23 Internal shoe drum brakes Expired GB1383299A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB5434071A GB1383299A (en) 1971-11-23 1971-11-23 Internal shoe drum brakes
ZA728062A ZA728062B (en) 1971-11-23 1972-11-14 Internal shoe drum brakes
AU48923/72A AU463615B2 (en) 1971-11-23 1972-11-15 Internal shoe drum brakes
DE2257347A DE2257347A1 (en) 1971-11-23 1972-11-22 INNER JAW DRUM BRAKE FOR VEHICLES
BR8208/72A BR7208208D0 (en) 1971-11-23 1972-11-22 DRUM BRAKE WITH INTERNAL SHOES
JP47117249A JPS5037347B2 (en) 1971-11-23 1972-11-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5434071A GB1383299A (en) 1971-11-23 1971-11-23 Internal shoe drum brakes

Publications (1)

Publication Number Publication Date
GB1383299A true GB1383299A (en) 1974-02-12

Family

ID=10470686

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5434071A Expired GB1383299A (en) 1971-11-23 1971-11-23 Internal shoe drum brakes

Country Status (6)

Country Link
JP (1) JPS5037347B2 (en)
AU (1) AU463615B2 (en)
BR (1) BR7208208D0 (en)
DE (1) DE2257347A1 (en)
GB (1) GB1383299A (en)
ZA (1) ZA728062B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS589296B2 (en) * 1976-09-09 1983-02-19 日産自動車株式会社 Automatic shoe clearance adjustment device for internally expanding drum brakes
JPS6143647U (en) * 1984-08-21 1986-03-22 三洋電機株式会社 Forced exhaust device
DE9012519U1 (en) * 1990-08-31 1990-11-08 Al-Ko Kober Ag, 8871 Koetz, De

Also Published As

Publication number Publication date
AU463615B2 (en) 1975-07-31
AU4892372A (en) 1974-05-16
ZA728062B (en) 1973-07-25
DE2257347A1 (en) 1973-05-30
JPS5037347B2 (en) 1975-12-02
BR7208208D0 (en) 1973-09-25
JPS4863164A (en) 1973-09-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee