| 摘要 |
<p>The present invention relates to a sash lock (10) for a double hung window. The sash lock (10) comprises a latch portion (12) and a keeper portion (14), (a) the latch portion (12) comprising a pivotally secured arcuate member (20) having a chamfered chamber (26) defined by an outer flange (28) extending from a first end of the arcuate member (20) to a handle end of the latch portion (12), the handle extending obliquely from the latch portion (12). The arcuate member (20) is pivotally attached to a latch base portion which may be secured to a first sash (15), (b) the keeper portion (14) having a base portion which may be secured to a second sash (16), the keeper portion (14) having an arcuate engaging shoulder (27) and a flange engaging surface (29), being configured such that they substantially engage the flange (28) and the chamfered chamber (26) respectively in a manner which substantially limits movement of the first sash (15) with respect to the second sash (16).</p> |
