PROBLEM TO BE SOLVED: To provide a knee-joint exercise assisting apparatus allowing the smooth operation.SOLUTION: This knee-joint exercise assisting apparatus includes a thigh-worn section to be worn on a thigh region, a leg-worn section to be worn on a leg region, a connecting section 8 rotatably connecting the knee joint-side ends of the thigh-worn section and the leg-worn section, and a drive section relatively sliding the thigh-worn section and the leg-worn section between the knee joint-side ends in the front/rear direction while relatively rotating them about the connection section. The drive section has a circumferential-edge cam 22 and, a cam follower 24 and a driving gear 25 which are clampingly disposed in the both sides of the circumferential-edge cam the circumferential-edge cams, the cam followers and the driving gears are attached to the thigh-worn section and the leg-worn section respectively and the circumferential edge of the circumferential-edge cam is formed with a tooth row 22a where a drive gear is engaged, and a smooth edge 22b where the cam follower comes into contact. This apparatus is adapted to produce the rotating movement and the sliding movement when the circumferential-edge cam is rotated between the driving gear and the cam follower by the rotation of the drive gear.COPYRIGHT: (C)2010,JPO&INPIT【課題】膝関節運動補助装置を円滑に動作させる。【解決手段】上腿部に装着される上腿装着部と、下腿部に装着される下腿装着部と、上腿装着部及び下腿装着部の膝関節側端部間を回転可能に連結する連結部8と、この連結部を中心にして上腿装着部と下腿装着部とを相対的に回転運動させながら膝関節側端部間を前後方向に相対的にスライド運動させる駆動部とを備える。駆動部が、周縁カム22と、この周縁カムを挟むように配置されるカムフォロア24及び駆動歯車25とを有し、この周縁カムとカムフォロア及び駆動歯車とが上腿装着部と下腿装着部に夫々取り付けられ、周縁カムの周縁には、駆動歯車が係合する歯列22aと、カムフォロアが接する平滑縁22bとが形成され、駆動歯車の回転により周縁カムが駆動歯車とカムフォロアとの間で回転すると回転運動及びスライド運動が生じるようにする。【選択図】図6
