JPS5618131A - Adjusting device for braking clearance of drum brake - Google Patents

Adjusting device for braking clearance of drum brake

Info

Publication number
JPS5618131A
JPS5618131A JP9367979A JP9367979A JPS5618131A JP S5618131 A JPS5618131 A JP S5618131A JP 9367979 A JP9367979 A JP 9367979A JP 9367979 A JP9367979 A JP 9367979A JP S5618131 A JPS5618131 A JP S5618131A
Authority
JP
Japan
Prior art keywords
braking
over
adjustment
elongated
force
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.)
Granted
Application number
JP9367979A
Other languages
Japanese (ja)
Other versions
JPH0135219B2 (en
Inventor
Hiroshi Ichinomiya
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.)
Akebono Brake Industry Co Ltd
Original Assignee
Akebono Brake Industry Co 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 Akebono Brake Industry Co Ltd filed Critical Akebono Brake Industry Co Ltd
Priority to JP9367979A priority Critical patent/JPS5618131A/en
Publication of JPS5618131A publication Critical patent/JPS5618131A/en
Publication of JPH0135219B2 publication Critical patent/JPH0135219B2/ja
Granted legal-status Critical Current

Links

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Abstract

PURPOSE: To prevent an over-adjustment of a braking clearance by a method wherein the braking clearance is adjusted at constant at all times by elongating a strut by a pivot of a ratchet wheel followed to an abrasion of a lining while an over- adjustment preventing spring is elongated against an excessive brake operating force.
CONSTITUTION: Upon braking, when pressurized liquid is supplied to a liquid chamber at a central portion of a cylinder device 7, brake shoes 21 are expanded outwardly respectively by a pair of pistons 1, 1 about a lower portion thereof engaging with an anchor member 12 and are pressed against an inner peripheral surface of a brake drum (not shown) to generate a braking force. In this case, when an operating lever 2 is pivoted about a supporting shaft 5 concurrently and an adjusting lever 18, energized to rotate by a resilient force of an over-adjustment preventing spring 16, is also rotated to follow the lever 2, a ratchet wheel 19 is rotated and a strut 6 is elongated to correct a braking clearance properly. In case an excessive braking force is acted, however, said spring 16 is elongated and the rotation of the adjusting lever 18 is precluded, thus, an over-adjustment may be prevented.
COPYRIGHT: (C)1981,JPO&Japio
JP9367979A 1979-07-25 1979-07-25 Adjusting device for braking clearance of drum brake Granted JPS5618131A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9367979A JPS5618131A (en) 1979-07-25 1979-07-25 Adjusting device for braking clearance of drum brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9367979A JPS5618131A (en) 1979-07-25 1979-07-25 Adjusting device for braking clearance of drum brake

Publications (2)

Publication Number Publication Date
JPS5618131A true JPS5618131A (en) 1981-02-20
JPH0135219B2 JPH0135219B2 (en) 1989-07-24

Family

ID=14089085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9367979A Granted JPS5618131A (en) 1979-07-25 1979-07-25 Adjusting device for braking clearance of drum brake

Country Status (1)

Country Link
JP (1) JPS5618131A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533024A (en) * 1981-06-03 1985-08-06 Lucas Industries Automatic adjusting device for a brake

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4929992A (en) * 1972-07-18 1974-03-16
JPS5126287U (en) * 1974-08-20 1976-02-26
JPS5185179U (en) * 1974-12-27 1976-07-08

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5126287B2 (en) * 1973-01-11 1976-08-05

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4929992A (en) * 1972-07-18 1974-03-16
JPS5126287U (en) * 1974-08-20 1976-02-26
JPS5185179U (en) * 1974-12-27 1976-07-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4533024A (en) * 1981-06-03 1985-08-06 Lucas Industries Automatic adjusting device for a brake

Also Published As

Publication number Publication date
JPH0135219B2 (en) 1989-07-24

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