PROBLEM TO BE SOLVED: To provide a muscle force assistance device that can stably and effectively assist a user in working with muscle force.SOLUTION: A muscle force assistance device 10 has drive means 30 held by a first attachment tool 20, switching means 40 that switches whether to transmit the force output from the drive means to a second attachment tool 25 or block it, and a casing 80 that stores the switching means.SELECTED DRAWING: Figure 10COPYRIGHT: (C)2018,JPO&INPIT【課題】筋力補助を安定して有効に行うことができる筋力補助装置を提供する。【解決手段】筋力補助装置１０は、第１装着具２０に保持された駆動手段３０と、駆動手段から出力された力の第２装着具２５への伝達および遮断を切り替える切替手段４０と、切替手段を収容するケーシング８０と、を有する。【選択図】図１０
