| 摘要 |
A latch which for example may secure a closure to an associated receptacle. The latch may comprise a collar which entraps the enlarged head of a large headed object. The collar may have a series of passages formed therein, each of which receives a spherical object such as a ball bearing. The latch may comprise a pushbutton having an annular body bearing a first portion which prevents the ball bearings from moving, and a second portion which gives each ball bearing space to occupy. The ball bearings normally interfere with the enlarged head and entrap the same within the collar. When the pushbutton is depressed, the second portion allows the ball bearings to move out of the interference position, thereby enabling the enlarged head to escape from the collar. Motion of the pushbutton also provides actuating force for moving the ball bearings.
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