| 摘要 |
PROBLEM TO BE SOLVED: To provide a simply structured, easy-to-use finger exercise tool.SOLUTION: A finger exercise tool is a coil spring the length of which allows holding it between the thumb of the left or the right hand and a finger of the hand, a direction center part of which has a winding diameter larger than that of both ends of the coil spring, and has elasticity such that it can be compressed by holding both end parts of the spring winding direction between a thumb and one or more fingers of the same hand and restore to its original state when the compression is released. The coil spring includes at one end part of the spring winding direction a thumb rest part for resting a thumb on it, and at the other end part of the spring winding direction a finger rest part for resting a finger on it. The thumb rest part of the coil spring has a thumb receiving part for receiving the belly of a thumb, and the finger rest part has a finger receiving part for receiving the belly of a finger. One end part of the spring winding direction is provided with a thumb locking part to which a thumb is locked, and the other end part of the spring winding direction is provided with a finger locking part to which a finger is locked. |
