| 摘要 |
A locking mechanism 1 comprises a rack 3 that cooperates with ratchet means 2, having an engaging member 21, to prevent further access in an emergency when, for example, a cash drawer 6 is left open. The member 21 is held in a non-operative position by control means, eg electromagnet 30, and is biased into an operative position by biasing means, eg a tension spring 26, which, upon de-energising the electromagnet either locally or remotely, causes the member 21 to engage the rack 3. It is possible when the locking mechanism 1 is engaged to push the drawer 6 to its fully closed position. The arrangement of the rack 3 and ratchet 2, see fig 1, may be reversed and/or the mechanism 1 situated in the upper/lower surfaces of the drawer rails. Ratchet 2 may be integrally formed with the drawer 6 and/or carcass 4. The mechanism 1 may be incorporated into sliding doors/windows. <IMAGE> |
