PROBLEM TO BE SOLVED: To smoothly expand and contract a left belt and a right belt, and to generate sufficient tensile force on the left belt and the right belt without excessively compressing around a lumbar area.SOLUTION: The left belt 1 and the right belt 2 are respectively made to go through a left connecting device 51 and a right connecting device 52 located on the back sides of right and left femoral regions from right and left shoulder parts to be folded back upward at the left connecting device and the right connecting device, and are respectively wound around the lumbar part in the left and right directions via a left retaining part 61 and a right retaining part 62 located on the back of the lumbar part. Consequently, respective sliding parts between the left and right belts 1, 2 and the left and right retaining parts 61, 62 are located at one place, and frictional force is reduced. In addition, the left connecting device 51 and the right connecting device 52 respectively exert the function of moving pulleys, and a lumbar-muscle assisting device tightens up the part around the lumbar area with 1/3 of the restoring force, for example, to regain from a stooped posture. As a result, sufficient force to regain postures is generated without excessively compressing around the lumbar area.COPYRIGHT: (C)2012,JPO&INPIT【課題】 左ベルト及び右ベルトを円滑に伸縮させる共に、腰部の周りを過度に圧迫せずに左ベルト及び右ベルトに十分な引張力を発生させる。【解決手段】 左ベルト1と右ベルト2とを、それぞれ左右の肩部から左右の大腿部の背側に位置する左連結具51及び右連結具52を経由させ、この左連結具と右連結具において上方に折り返して、腰部の背中に位置する左保持部61及び右保持部62を介して、それぞれ腰部の周りに左及び右方向に巻きつける。したがって左ベルト1及び右ベルト2と左保持具61及び右保持部62との摺動部がそれぞれ1個所になって摩擦力が減る。また左連結具51及び右連結具52が、それぞれ動滑車の機能を発揮して、例えば前屈姿勢を戻そうとする復元力の1/3の力で腰部の周りを締付ける。このため腰部の周りを過度に圧迫せずに十分な姿勢復元力を発生させ得る。【選択図】 図1
