To provide a power steering device having both a belt tension measuring function and a pressure adjusting function in a housing and allowing for simplifying a structure.SOLUTION: A power steering device assists a driver's steering operation by transmitting the rotational force of an electric motor 21 to a rack bar 13 via a belt transmission mechanism 19 having an input pulley 31, an output pulley 32, and a belt 33, and a ball screw mechanism 18. A measuring work hole 38 is formed through a storage case 11 for storing the belt transmission mechanism to insert a device for measuring belt tension, and a breather valve 39 having a retainer 40 and a breather valve body 41 retained by the retainer and formed to transmit air in both directions is detachably fitted to the measuring work hole.SELECTED DRAWING: Figure 3
パワーステアリング装置
2020-12-02
Patent
Electronic Resource
Japanese