| 摘要 |
<p>The lock has an additional interlocking mechanism and is suitable for mounting on entrance or main storey doors in order to improve their stability against breaking in. It consists of a box (1), mounted to a front plate (2), tongue (5) with a comb (6) and additional locking lever (11), driven by a pawl (4) of the safety lock (3). Under hole (1a) a safe-type lock (7) is built-in, on the tongue (8) of which a fixed pin (8a) is fitted, found opposite shuttles (9), which have grooves (9a). Tongue (8) has an extension (10) with several bent teeth (10a), which mesh the toothed part (11) of the additional locking lever (11) and interlock it in any locking position. The extension (10), under the pressure of spring (12) can be manually shifted by means of a pin (13) mounted on it, found on the internal side of the door. 3 claims, 2 figures</p> |
