| 摘要 |
A lock mechanism for locking a door, as more particularly a metallic fire door. The lock mechanism comprises a latch mechanism (12), which is mounted in the body (10) of the door, on the upper and/or lower edge of it, and in its latching position locks the door to the door frame (11). The lock mechanism further comprises an opening means (20), such as a handle or a push-button for unlocking the lock mechanism, and a vertical pull rod (22, 24), which is disposed within the body (20) of the door and which transmits the movement of the opening means (20) to the latch mechanism (12). The pull rod (22, 24) is made of a flexible material, such as a wire or the like, and/or is movably connected to latch mechanism (12) so that it is also capable of moving laterally inside the body (10) of the door. One or a plurality of dampening members (30), such as rubber or plastic rings, which prevent the pull rod from laterally hitting the structural parts (28) of the door, are disposed on the pull rod (22, 24).
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