Electrically controlled door lock
AssigneeSchlage Lock Company LLC
InventorErnest L. Schlage
Life of this patent
Estimating the term…
Abstract
A door lock for use on a door panel has bores containing a lock mechanism including a chassis on which spindles are mounted for rotation about two parallel axes. Door handles or other lock operators are disposed on opposite ends of both spindles and are interconnected variously to operate a lock bolt and a latch bolt. The lock and latch bolts are also disposed in the bores and are joined to the chassis. One of the handles is joined to one of the spindles by a clutch including an axially movable member operated by an electromagnet within the bores, the electromagnet being connected to the clutch member by an actuator movable in a path having an axial component.
Claims14
An electrically controlled door lock for use in a door panel having a bore therein comprising a lock chassis adapted to be disposed on said door panel, a lock bolt adapted to be disposed on said door panel, a spindle on said chassis rotatable about an axis, means for connecting said spindle to operate said lock bolt, a door handle, means for mounting said door handle on said door panel for rotation about said axis, a clutch including a member adapted to engage and to disengage said handle and said spindle, an electromagnet frame in said bore, an electromagnet on said frame, an armature operable by said electromagnet, and means for interconnecting said armature and said clutch member for conjoint movement.
An electrically controlled door lock comprising a lock chassis, a lock bolt movable relative to said chassis, a door handle rotatable relative to said chassis, means including a clutch for interconnecting said lock bolt and said door handle, and an electromagnet connected to said chassis for operating said clutch.
Dependencies are inferred from the claim text.