| 摘要 |
<p>A support arm for a pivoted window to hold the window open until such time as the locking mechanism for the window is manually released. The support arm has a sequencing latch mounted on one of a pair of sliders that are telescopically mounted relative to each other and a pivoted lock lever is pivoted on the other slider. In moving the sequencing latch to an active latch or lock position, the lock lever is pivoted from an active to an inactive position and is not effective to remove the sequencing latch in response to any movement of the sliders relative to each other until such time as the lock lever is manually moved from the inactive position to an active position wherein, upon relative movement between the sliders, the lock lever can engage and move the sequencing latch from the latch position to an unlatch position.</p> |
