Patent ID: 9702422
Date: 2017-07-11
CPC Classifications: F16D

Claim:
1. A brake shoe for a drum brake, comprising: a supporting unit which comprises a bearing portion for pivotable support and an actuation portion; and a lining unit fixed at a convexly curved outer side of the supporting unit, wherein, when an actuation force smaller than a limiting force is applied to the actuation portion, the lining unit shows a braking effect in a first lining portion only, wherein, when an actuation force larger than the limiting force is applied, the lining unit shows a braking effect also in a second lining portion, and wherein a majority of the first lining portion is located adjacent one of the bearing portion and the actuation portion of the supporting unit, and a majority of the second lining portion is located adjacent the other of the bearing portion and the actuation portion of the supporting unit; wherein the supporting unit between the bearing portion and the actuation portion comprises a curved first supporting portion, and a curved second supporting portion; and wherein a center of a mean curvature of the first supporting portion at the convexly curved outer side is spaced apart from a center of a mean curvature of the second supporting portion at the convexly curved outer side.