PROBLEM TO BE SOLVED: To provide power assist devices that can be attached to and detached from a walking support machine without removing wheels of the walking support machine.SOLUTION: Power assist devices are provided with: connecting parts 21a and 21b in which one-end parts can be attached to and detached from frames 11a and 11b of a rollator 1 and the other-end parts are fixed to cases 22a and 22b motors 23a and 23b that are provided in the cases 22a and 22b and generate rotational torque and torque transmission wheels 24a and 24b that transmit the rotational torque to front wheels 12a and 12b of the rollator 1.COPYRIGHT: (C)2015,JPO&INPIT【課題】歩行支援機の車輪を取り外すことなく歩行支援機に着脱することができるパワーアシスト装置を提供する。【解決手段】一端部が歩行車1のフレーム11a,11bに着脱自在に構成され、他端部が筐体22a,22bに固定された結合部21aと、筐体22a,22bに設けられて回転トルクを発生するモータ23a,23bと、回転トルクを歩行車1の前輪12a,12bに伝達するトルク伝達車輪24a,24bとを設けた。【選択図】図1
