| 摘要 |
PURPOSE: A foot holding device for a back stretching machine is provided to prevent abnormal abrasion of parts and malfunctions and to prevent the foot holding device from being unlocked. CONSTITUTION: A foot holding device for a back stretching machine includes a base (10), a backrest (20), an ankle supporter (30), a footstool (40), a motor, and a limit switch (60). The backrest is delivered with the power of the motor and turns at a constant angle. The ankle supporter is mounted on the lower part of the back support frame. The motor is mounted in the footstool. A limit switch is mounted in the center of the footstool. A guide groove for moving an arm is formed in the center of the footstool. The limit switch is mounted on one side cover of the guide groove. |
