JPS56138531A - Automatic brake gap adjusting device for mechanical drum brake - Google Patents
Automatic brake gap adjusting device for mechanical drum brakeInfo
- Publication number
- JPS56138531A JPS56138531A JP4186380A JP4186380A JPS56138531A JP S56138531 A JPS56138531 A JP S56138531A JP 4186380 A JP4186380 A JP 4186380A JP 4186380 A JP4186380 A JP 4186380A JP S56138531 A JPS56138531 A JP S56138531A
- Authority
- JP
- Japan
- Prior art keywords
- brake
- rotation
- braking operation
- cam member
- gap
- 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
Links
Abstract
PURPOSE: To obtain a stabilized and reliable braking operation by a method wherein the brake gap is automatically compensated to be kept constant at all times and the angle of rotation of a brake arm is maintained at a predetermined value even after the adjustment of the brake gap.
CONSTITUTION: Turning the brake arm 10 in the direction of A as indicated by the arrow through a brake wire (not shown) at the time of braking operation, a cam member 9, which has a serrated shaft 9c into which one end of the brake arm 10 is fitted, is rotated in the same direction. The rotation of the cam member 9 is transmitted to cam collars 14 and 14' and to a wedge adjuster 13 engaging the cam member 9. Accordingly, the end faces 5c and 5c' of brake shoes 5 and 5' are separated from each other and the brake shoes 5 and 5' are brought into pressure contact with a brake drum. When linings 7 and 7' are frictionized due to the braking operation and the brake gap becomes large, a gear 15 is regulated of its rotation at its predetermined position through a stopper 17 and the adjuster 13 is forced to advance by a predetermined amount so that the brake gap is adjusted to a predetermined value.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4186380A JPS5939615B2 (en) | 1980-03-31 | 1980-03-31 | Braking gap automatic adjustment device for mechanical drum brakes |
US06/246,185 US4394892A (en) | 1980-03-31 | 1981-03-23 | Automated braking-gap adjuster system for mechanical drum brake |
GB8109124A GB2074671B (en) | 1980-03-31 | 1981-03-24 | Automatic gap adjustment for a mechanical drum brake |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4186380A JPS5939615B2 (en) | 1980-03-31 | 1980-03-31 | Braking gap automatic adjustment device for mechanical drum brakes |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56138531A true JPS56138531A (en) | 1981-10-29 |
JPS5939615B2 JPS5939615B2 (en) | 1984-09-25 |
Family
ID=12620083
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4186380A Expired JPS5939615B2 (en) | 1980-03-31 | 1980-03-31 | Braking gap automatic adjustment device for mechanical drum brakes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5939615B2 (en) |
-
1980
- 1980-03-31 JP JP4186380A patent/JPS5939615B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5939615B2 (en) | 1984-09-25 |
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