초록 ▼

A drive element in this lock pushes a radially directed outward finger out of its longitudinal slot in the outer tubular spindle to disengage the outer handle from the latch so that the handle free-wheels. Spring means in the outer handle rose returns the handle to its normal horizontal position whe

A drive element in this lock pushes a radially directed outward finger out of its longitudinal slot in the outer tubular spindle to disengage the outer handle from the latch so that the handle free-wheels. Spring means in the outer handle rose returns the handle to its normal horizontal position when the handle is released. The handle is preferably in lever form.

대표청구항 ▼

A door lock comprising an inner handle, an outer handle in the form of a lever normally disposed horizontally and having a rose, a latch housing between the handles and containing a latch retractor, and first spring means biasing the retractor outwardly toward latched disposition, an inner and an ou

A door lock comprising an inner handle, an outer handle in the form of a lever normally disposed horizontally and having a rose, a latch housing between the handles and containing a latch retractor, and first spring means biasing the retractor outwardly toward latched disposition, an inner and an outer tubular spindle receiving the respective handles and both terminating respectively inside the lock in arcuate pull-back scoops, the two scoops being aligned end-to-end and disposed against the side of the retractor opposite the first spring means and each being adapted when turned to move the retractor inwardly, the inside handle being keyed to the inner spindle, the outer spindle being notched out at its outer end, the notch comprising a longitudinal slot and an adjoining partial circumferential space, the outer spindle having thereinside a central boss having a radial finger and second spring means urging the boss inward toward the latch housing, the outside handle having a shank with a longitudinal interior keyway, the boss and finger normally disposed by the second spring means with the finger extending through the longitudinal slot and into the keyway to key the outer handle and the outer tubular spindle into unitary rotation with each other, and push-piece means terminating in an actuator central of the inner knob and extending through the outer and inner tubular spindles and adapted on depressing to engage and push the boss to move the radial finger into the circumferential space so that the outer handle is free to turn unkeyed from the outer spindle, releasable catch means for holding the push-piece means in the depressed condition, and third spring means disposed in the rose of the outer handle for biasing the outer handle toward its normal position.