| 摘要 |
<p>A locking/unlocking projectile binding instrument used elastic body is provided to restrict the projectile by using an elastic member such that the projectile is easily loaded or unloaded with little force. A locking/unlocking projectile(20) comprises a pair of restricting pins(21,22) protruding from a rear outer periphery of the projectile. A pair of gripping units(30A,30B) are installed at the inner wall of a projectile tube(10) in opposition to each other to grip the restricting pins. The grip units include a hinge shaft(32) protruding radially inward from the inner wall of the projectile tube, a pair of gripper(34,36) having gripping grooves(34a,36a) for gripping the restricting pins, and a spring(38) elastically pulling the grippers against to each other.</p> |
