| 摘要 |
A lock mechanism 10, particularly for a sliding or patio door, having a driving member 26 and a driven member 36 which move in opposing directions with movement of the driving member is communicated to the driven member by drive componentry, the drive componentry including at least one substantially circular drive disc 58 which can rotate within a circular opening 54, and drive elements which interconnect the drive disc with the driving member and with the driven member. The drive elements are preferably drive pegs 66 which locate within drive slots 70 of the driving 26 and driven members 36. The drive disc may have two notches 60, each to accommodate a ball bearing 64 which is resiliently biased towards the notch to lock the disc in place. The lock is compact and thus suitable for sliding doors with thin or narrow frames.
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