Importance

Loading Importance Indicators...

Abstract

Disclosed is a brake band which includes a band and a lining connected to an inner peripheral surface of the band. The lining includes a plurality of grooves in its inner peripheral surface, the grooves which extend from an end to another end of the lining in an axial direction of a drum, rotating either in a clockwise direction or in a counter clockwise direction, obliquely with respect to an axial direction and a circumferential direction of the lining. The grooves include a communication passage which communicates an inner peripheral surface of the lining with the outside and which is disposed at a leading end of the grooves with respect to the clockwise rotational direction of the drum, and a trailing end of the grooves with respect to the clockwise rotational direction of the drum is disposed an inside of the another end of the lining. The brake band has a high cooling efficiency when the drum rotates in the clockwise direction. When the drum rotates in the counterclockwise direction, the oil is flowed to the trailing ends of the grooves, and it is blocked by the trailing ends. Accordingly, the oil is thus held in the grooves, and it is leaked gradually between the drum and the lining in a sufficient amount. Therefore, the brake band maintains the high cooling efficiency, and it inhibits the judder from occurring even when the drum rotates in the counterclockwise direction.

Loading the Abstract Image...

First Claim