To provide an electric parking brake device with which a parking brake can be pivotally moved smoothly.
The force line F of a motion transmitting force at an abutment portion P between a motion transmitting member 23 and an intervention member 24 is located inside of an outer circumferential surface S of an engaging portion between a screw shaft member 27 and a nut member 26. Thus, when a linear motion of the screw shaft member 27 causes the parking lever to pivotally move, no floating takes place at the engaging portion, so that a one-side hitting can be prevented at the engaging portion. Accordingly, the parking lever 13 can be pivotally moved smoothly. Further, one surface of the motion transmitting member 23 abutting the intervention member 24 is formed on a circumferential surface 23a. Thereby, the linear motion of the screw shaft member 27 may prevent the slippage in the movement when the parking lever 13 is pivotally moved. Consequently, the motion transmitting force by the motion transmitting member 23 can be prevented from becoming an offset load, enabling smooth pivot movement of the parking lever 13.
KUSANO AKIHITO
INAYA EIJI
ARAKI HIRONORI
HOSEI BRAKE IND