| 摘要 |
A self-locking folding leg arrangement which enables extending the leg and automatically locking the leg when the extended position is reached, enables quickly releasing the leg by withdrawing the leg lock against the action of its spring, assures rigidity by virtue of the cooperation of a flange which limits the extent of extension of the leg, while the lock prevents return movement of the leg toward its folded position, and facilitates unlatching or unlocking the leg for folding by virtue of a finger tab on the lock. The leg and lock are each pivotally mounted on parallel axes closely adjacent to and on the same side of a generally flat plate adapted to be secured to the underside of a horizontal support member such as a work bench top or sawhorse top. The lock is spring biased to fold toward the leg, so the folded assembly is relatively flat and compact, and by pivoting the leg to its extended position, the lock is moved outwardly against the action of its spring, to a position in which it snaps over a cooperating V-shaped element on the leg, to lock the leg against folding.
|
