| 摘要 |
PROBLEM TO BE SOLVED: To easily hold a fastened member without magnetization and fasten the fastened member to a fastening target member.SOLUTION: A fastening mechanism 1 rotates a bolt B and threads a screw section Ba of the bolt B with a screw hole Ma of a fastening target member M, and comprises: a gear 3b receiving rotating power and rotating; a gear 3c which is disposed to differ from the gear 3b in rotational axis center and which rotates by transmitting the rotating power to the gear 3c from the gear 3b; a socket 4 which is provided on the gear 3c and which holds the bolt so that a rotational axis of the gear 3c matches a rotational axis of the bolt; and an anti-detachment section 5 moving between a prevention position at which the anti-detachment section 5 prevents the detachment of the bolt from the socket and a standby position which is outward, in a radial direction of the gear 3c, of the prevention position and at which the anti-detachment section 5 allows the separation of the bolt from the socket in a state in which the bolt held by the socket can rotate and the screw section of the bolt can be threaded with the screw hole of the fastening target member.SELECTED DRAWING: Figure 1 |
