| 摘要 |
<p>A latchbolt comprises (i) a latchbolt tail (8) and (ii) a latchbolt head (12), mounted on the latchbolt tail (8), and pivotable relative to the tail (8). The latchbolt (2) further comprises (iii) stop means (26) forming part of the latchbolt head (12); (iv) blocking means (14), mounted on the latchbolt tail (8) for movement relative to the latchbolt tail (8), between a first position in which the blocking means (14) engages the stop means (26) to prevent pivoting of the latchbolt head (12) and a second position in which the stop means (26) is not engaged and the latchbolt head (12) is free to pivot relative to the latchbolt tail (8) and (v) biasing means (16) biasing the blocking means (14) towards the first position. A latchbolt assembly and lock set are also described. <IMAGE></p> |
