Combination square

摘要

A combination square includes a blade, a body, and a lock. The body comprises a slot adapted to receive the blade therein and permit sliding translation of the blade parallel to the longitudinal axis of the blade, allowing the position of the blade to be adjusted relative to the body. The lock is adapted to lock the position of the blade relative to the body in a locked configuration and to allow adjustment of the position of the blade relative to the body in a released configuration. The combination square also comprises a removable extension bracket being wider than and removable from the body and comprising one or more working surfaces.

主权项

1. A combination square, comprising:
a blade defining a longitudinal axis; a body comprising a slot adapted to receive the blade therein and permit sliding translation of the blade parallel to the longitudinal axis of the blade, allowing a position of the blade to be adjusted relative to the body; a lock comprising a locking pin and a locking arm, each movable between a locked position, in which the position of the blade is locked relative to the body in a locked configuration, and an unlocked position, in which the lock allows adjustment of the position of the blade relative to the body in a released configuration; the locking pin having a transverse extension and the locking arm having a cam portion; and the lock further comprising a clamp subassembly adapted to locate between the cam portion and the transverse extension, the clamp subassembly comprising a clamp member having a cam follower portion, the cam portion applying a force to the cam follower portion when the locking arm is in the locked position causing the locking pin to be held in the locked position and, thus, to maintain the lock in the locked configuration until the locking arm is moved towards the unlocked position.