Title:
ABRASION INDICATOR FOR FRICTIONAL LINING OF SHOE DRUM BRAKE
Document Type and Number:
Japanese Patent JPS55112433
Kind Code:
A
Abstract:
A friction lining wear indicator for shoe-drum brakes comprising a sensor mounted on a brake shoe, which actuates an indicator when the thickness of a friction lining carried by a platform of the shoe for engagement with a drum is less than a predetermined value. In order to locate the sensor at the most effective position without machining the lining or fastening the sensor permanently to the shoe, the sensor is located by a mounting device located in a depression in an edge of the platform, and co-operates with the shoe to retain the sensor adjacent the lining. The mounting device comprises a plastics plug, or a resilient clip, and the retaining device is releasable. The sensor comprises a wire loop or a pressed insulation-coated metal strip, and may be integral with the mounting device. The sensor and the drum are connected in a circuit with the indicator which is actuated when the sensor touches the drum.
Inventors:
JIYOOJI AASAA HAAMAA
Application Number:
JP1772580A
Publication Date:
August 30, 1980
Filing Date:
February 15, 1980
Export Citation:
Assignee:
LUCAS INDUSTRIES LTD
International Classes:
F16D65/08; F16D66/02; (IPC1-7): F16D66/02