JPS56138531A - Automatic brake gap adjusting device for mechanical drum brake - Google Patents

Automatic brake gap adjusting device for mechanical drum brake

Info

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
Application number
JP4186380A
Other languages
Japanese (ja)
Other versions
JPS5939615B2 (en
Inventor
Mitsutoyo Mizusawa
Masayuki Seki
Kazuo Haruhara
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.)
Nissin Kogyo Co Ltd
Original Assignee
Nissin Kogyo 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 Nissin Kogyo Co Ltd filed Critical Nissin Kogyo Co Ltd
Priority to JP4186380A priority Critical patent/JPS5939615B2/en
Priority to US06/246,185 priority patent/US4394892A/en
Priority to GB8109124A priority patent/GB2074671B/en
Publication of JPS56138531A publication Critical patent/JPS56138531A/en
Publication of JPS5939615B2 publication Critical patent/JPS5939615B2/en
Expired legal-status Critical Current

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
JP4186380A 1980-03-31 1980-03-31 Braking gap automatic adjustment device for mechanical drum brakes Expired JPS5939615B2 (en)

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)

Also Published As

Publication number Publication date
JPS5939615B2 (en) 1984-09-25

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