| 摘要 |
A lock for securing a window or door, including a locking pin 6 formed as part of a locking plate 2 and which is securable to a moving part MP of the window or door by a pair of screws 10. A combination lock member 4 is securable to a stationary part SF of the window or door using a fixing plate (a mounting block 18). The combination lock member 4 has a plurality of combination dials 26 that are independently rotatable about a common axis and houses a locking column 30 that is biased towards a locking position where it engages with the locking pin 6 when the window or door is closed. The locking column 30 is movable between the locking position and a retracted position where it does not engage with the locking pin 6 when the window or door is closed only when the plurality of combination dials 26 are in a predetermined alignment. When the window or door is closed, the locking pin 6 is received in an opening 40 in the combination lock member 4 and engages with the locking column 30 when the locking column is in the locking position to prevent the opening of the window or door. |
