JPS5673238A - Automatic braking-gap adjusting apparatus for drum brake - Google Patents

Automatic braking-gap adjusting apparatus for drum brake

Info

Publication number
JPS5673238A
JPS5673238A JP14714279A JP14714279A JPS5673238A JP S5673238 A JPS5673238 A JP S5673238A JP 14714279 A JP14714279 A JP 14714279A JP 14714279 A JP14714279 A JP 14714279A JP S5673238 A JPS5673238 A JP S5673238A
Authority
JP
Japan
Prior art keywords
lever
brake
arm
ratchet wheel
turned
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.)
Pending
Application number
JP14714279A
Other languages
Japanese (ja)
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 JP14714279A priority Critical patent/JPS5673238A/en
Publication of JPS5673238A publication Critical patent/JPS5673238A/en
Pending legal-status Critical Current

Links

Landscapes

  • Braking Arrangements (AREA)

Abstract

PURPOSE: To enable to adjust the braking gap automatically through operation of the brake by either of hydraulic or manual braking system, by disposing a variable- length post between opposite brake shoes, and providing a rotatable means which is rotated in response to the movement of brake shoes.
CONSTITUTION: When hydraulic liquid is supplied to a hydraulic cylinder 12, a rihgt-side brake shoe 2 is moved to the right and an adjustment lever 4 is turned counterclockwise around a pin 6 by the force of a spring 9. Here, if the braking gap is larger than a predetermined length, an arm of the lever 4 overrides the teeth of a ratchet wheel 8 and comes into mesh with a different tooth. When the brake is released in this state, lever 4 is turned clockwise around pin 6. Resultantly, a screw shaft 28 connecting separate members 17, 18 to each other is turned with ratchet wheel 8, so that the length of a post 7 is increased. On the other hand, in case of operating the brake manually, the braking gap is not adjusted since the clearance between end portion 11 of lever 4 and a parking brake lever 1 becomes zero and the arm of lever 4 is pushed back through the movement of parking brake lever 1 to the left before the arm of lever 4 overrides the teeth of ratchet wheel 8.
COPYRIGHT: (C)1981,JPO&Japio
JP14714279A 1979-11-15 1979-11-15 Automatic braking-gap adjusting apparatus for drum brake Pending JPS5673238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14714279A JPS5673238A (en) 1979-11-15 1979-11-15 Automatic braking-gap adjusting apparatus for drum brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14714279A JPS5673238A (en) 1979-11-15 1979-11-15 Automatic braking-gap adjusting apparatus for drum brake

Publications (1)

Publication Number Publication Date
JPS5673238A true JPS5673238A (en) 1981-06-17

Family

ID=15423521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14714279A Pending JPS5673238A (en) 1979-11-15 1979-11-15 Automatic braking-gap adjusting apparatus for drum brake

Country Status (1)

Country Link
JP (1) JPS5673238A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003184915A (en) * 2001-11-13 2003-07-03 Akebono Corp North America Dual leading-shoe brake system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003184915A (en) * 2001-11-13 2003-07-03 Akebono Corp North America Dual leading-shoe brake system

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