| 摘要 |
<p>A self-latching sash latch device for use with a sliding closure. The latch device has a primary bolt ( 15 ) which in use engages with a strike ( 12 ). The primary bolt ( 15 ) is coupled to an operating element ( 13 ) whereby the primary bolt is moveable from a latching position to a retracted position. A retainer ( 38 ) retains the primary bolt ( 15 ) in the retracted position. A secondary bolt ( 16 ) is moveable with or independent of the primary bolt ( 15 ) and is engageable with the retainer ( 38 ) to release the retainer and enable the primary bolt ( 15 ) to move from a retracted position to the latching position.</p> |
