| 摘要 |
PROBLEM TO BE SOLVED: To provide a disk brake device excellent in assembling property, not requiring particular accuracy, enabling accurate and sure gap adjustment while securing sufficient feed quantity with preventing over gap adjustment, and easy in replacement of the brake pads. SOLUTION: Displacement quantity of a piston 5B exceeding a predetermined value at a time of press operation is absorbed by rotation of an adjust spindle 5D relative to an adjust nut 5C in an automatic gap adjustment mechanism 20 at a time of return of actuators 7-10. A regulation member preventing rotation of the adjust spindle 5D when axial force of the piston exceeds a predetermined value is provided. Since automatic gap adjustment can be absorbed by rotation of the adjust spindle 5D relation to the piston 5B and the adjust nut 5C, an particular automatic gap adjustment mechanism is not necessary to be separately provided, number of components is reduced, assembly of a brake device including the automatic gap adjustment mechanism is facilitated, and over gap adjustment can be inhibited. COPYRIGHT: (C)2008,JPO&INPIT
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