JPS5673238A - Automatic braking-gap adjusting apparatus for drum brake - Google Patents
Automatic braking-gap adjusting apparatus for drum brakeInfo
- 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
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
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)
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 |
-
1979
- 1979-11-15 JP JP14714279A patent/JPS5673238A/en active Pending
Cited By (1)
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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