| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a disc braking device which can make its effective radius large, prevent a gyro action from being generated by a rotor, and eliminate a special support to secure braking force produced at its braking pad as an anchor reaction. SOLUTION: A gear 25 is meshed with the external teeth of the inner circumferential disc of a rotor 11 and the internal teeth of the outer circumferential disc of the rotor, a piston rod 30 extended from the inner surface is provided for the outer piston 16b of a cylinder member 16, the piston rod 30 is provided with an inner piston 16a, both of brake pads 14 and 15, and with a reaction member 31 which penetrates through a gap between an inner circumferential side disc and an outer circumferential side disc so as to be set at the tip end of the piston rod 30, one brake pad 15 is interposed between the reaction member 31 and the rotor 11, and the other brake pad 14 is interposed between the inner piston 16a and the rotor 11.</p> |
