PROBLEM TO BE SOLVED: To provide a lumbar extending instrument which has a structure in which a power source is not required, which is light, portable and simple, and by which a user can easily pull his or her own lumbar spine for oneself.SOLUTION: The user disposes a traction belt 11 at a lumbar part, and presses cushioning pads 12B, 12B of side application sections 12A, 12A of one end sections of support rod members 12, 12 of one pair of right and left against both under sides. Under such a condition, the user manually performs the rotation operation of nut members 13A, 13A of manual telescopic mechanisms 13, 13 of the support rod members 12, 12 of one pair of right and left. The engaging eye sections 13J, 13J of the manual telescopic mechanisms 13, 13 expands by the manual operation, the both side portions of the traction belt 11 disposed at the users lumbar part is pulled to the traction direction of the users lumbar spine through connection straps 14, 14 of one pair of right and left, and thus the users lumbar spine is pulled for oneself.COPYRIGHT: (C)2013,JPO&INPIT【課題】電源を必要としない軽量で携帯可能な簡素な構造でありながら、使用者が自身の腰椎を自力で容易に牽引することができる伸腰器を提供する。【解決手段】使用者は被牽引ベルト11を腰部に装着し、左右一対の支持棒部材12,12の一端部の脇当て部12A,12Aのクッションパッド12B,12Bを両脇下に押し当てる。この状態で使用者は左右一対の支持棒部材12,12の手動式伸縮機構13,13のナット部材13A,13Aを手動により回転操作する。この手動操作により、手動式伸縮機構13,13の係合アイ部13J,13Jが伸張し、使用者の腰部に装着された被牽引ベルト11の両脇部分が左右一対の連結ストラップ14,14を介して使用者の腰椎の牽引方向に牽引され、こうして使用者の腰椎が自力で牽引される。【選択図】図1
