| 摘要 |
<p>In safes and security doors of the swing and slide type the door edge slides in and out of a slot in order to prevent it being pried open. The slide motion is supplied by a rotatable handle on the door itself. The action of sliding into the slot is accompanied by the extension of multiple bolts which shoot from the door edge into keepers in the safe body or door frame. The rotation of the handle is coupled to a cam which retracts the bolts first and slides the door to the position where it is ready to open in a defined sequence. Likewise, the door swings shut, contacts a landing surface, slides into the slot and the bolts extend. A variant for a door with slots which rides on a group of pins is described. The cam is locked by a key or digital lock.</p> |
