| 摘要 |
There is disclosed an espagnolette type lock comprising: a lateral bolt which is extended laterally from a leaf by key operation; and first and second vertical bolts extending vertically in the leaf and abutting upper and lower faces of said lateral bolt respectively, the second vertical bolt being retained against the lower face of said lateral bolt by resilient means; wherein the lateral bolt comprises upper and lower shaped pieces having inclined leading edges positioned laterally so that lateral extension of the lateral bolt from the leaf drives the first and second vertical bolts into retaining slots positioned in a frame. |
