| 摘要 |
<p>A lock mechanism for a fenestration assembly, such as a sliding door, includes a strike element preferably coupled with the door frame and a catch assembly preferably coupled with the fenestration member slidably supported within the frame. The catch assembly includes a catch having structure defining an element receiving slot. The catch is mounted for shifting among a plurality of positions including an engaged position in which the element is received within the slot and retained therein by the catch when the fenestration member is in a closed position, a disengaged position in which the element is disengaged by the catch when the fenestration member is shifted out of the closed position, and an intermediate position in which the element is received within the slot and the catch is positioned between the engaged and disengaged positions. The catch assembly further includes locking structure for shifting the catch from the intermediate position to the engaged position, and thereby shifting the fenestration member to the closed position, and for locking the catch in the engaged position. The lock mechanism may also be provided with structure for blocking movement of the strike element out of the element receiving slot defined in the catch, when the catch is in the engaged position so as to reduce the risk of intrusion through the fenestration assembly.</p> |
