| 摘要 |
There is disclosed a bolting mechanism, for example to secure a door. The mechanism includes one or more rotatably mounted swing bolts 22,32. Each swing bolt has a face 108 oblique to the plane of rotation such that, during rotation towards an engaged position, the oblique face tightens against an opposing surface of the doorframe. The oblique face may be provided by a taper of the end of each swing bolt the taper being in a direction radially away from, tangential to, or both radially away from and tangential to the axis of rotation of each swing bolt. |
