| 摘要 |
PURPOSE: A key insertion body for coupling a shaft is provided to as the front side of the insertion body is elastically transformed and a coupling position of a key groove and a groove is simultaneously adjusted along a guide surface when coupling a rotary shaft and a shaft of a boss, thereby improving working efficiency. CONSTITUTION: A key insertion body for coupling a shaft comprises a key groove(30a) and a groove(20a). The key groove is formed on the outer periphery of a rotary shaft. The groove is formed in the inner periphery of a boss corresponding to the key groove. The key insertion body is inserted into a space between the key groove and the groove, and the front side of the key insertion body is elastically transformed when inserting the key insertion body. |
