| 摘要 |
A locking device in a stapler adapted to lock a displaceable member carrying a catch for an object to be stapled in an optional position along a bar. The bar extends through a hole in a locking element. The locking element is connected to the displaceable member and is tiltable along the bar from a pinch position in which the locking element is pinched to the bar to a free position in which the locking element is free from the bar. The locking element is spring-biased towards its pinch position. An operating handle mounted on the displaceable member and operable outside the stapler is displaceable to a limited extent relative to the displaceable member. Exerting a forward force on the handle moves the displaceable member forward. Exerting a backward force on the handle tilts the locking element to its free position, whereby the displaceable member moves backward, and removing the force causes the locking element to return to the pinch position, thereby locking the displaceable member against further backward displacement. |
