| 摘要 |
In a brake shoe clearance automatic adjusting device comprising a strut member disposed between a pair of arcuate shoes and having a generally L-shaped ratchet member pivotally mounted on one end thereof, one end of the ratchet member being operably connected to one shoe with a clearance, the other end of the strut member being operably connected to the other shoe, and a pawl member pivotally mounted on the strut member for engaging with ratchet teeth formed on the ratchet member, wherein the improvement comprises a plate spring extending between and mounted on two pivotal shafts relating respectively to the ratchet member and the pawl member, and a lug portion formed on the plate spring for resiliently biassing the pawl member towards the ratchet teeth.
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