초록 ▼

A cylindrical lever handle lock mounted in a door panel having a transverse bore therethrough is secured against rotation due to torque applied to the lever handles. The lock mechanism includes a lock chassis having a pair of chassis support members each having a pair of slots on their peripheries.

A cylindrical lever handle lock mounted in a door panel having a transverse bore therethrough is secured against rotation due to torque applied to the lever handles. The lock mechanism includes a lock chassis having a pair of chassis support members each having a pair of slots on their peripheries. A pair of support plates having inwardly extending tongue members slide into the support plate openings. The support plates are of a diameter greater than the bore and have openings in the periphery of each which corresponds with a hole drilled in the door panel outside of the bore. Door handle roses are secured over the support plates by through-bolts which pass through the support plate peripheral openings and the drilled door holes. Threaded bushings are also utilized to tighten the support plates on either side of the bore. Additional tabs and screws may be used to non-rotatably secure the support plates to the door panel. Separate coil spring assemblies mounted in the rose plates ensure return of the lever handles to their original position despite wear and abuse.

대표청구항 ▼

A cylindrical lock for mounting in a door panel having a transverse bore therethrough comprising: a lock chassis, adapted to fit within said bore, having rotatable spindles extending therefrom for actuating a latch bolt upon rotation of said spindles, said chassis including a support member having a

A cylindrical lock for mounting in a door panel having a transverse bore therethrough comprising: a lock chassis, adapted to fit within said bore, having rotatable spindles extending therefrom for actuating a latch bolt upon rotation of said spindles, said chassis including a support member having at least one opening therein; a pair of support plates, each having a diameter greater than said bore, on opposite sides of said lock chassis for non-rotatably securing said chassis to said door, at least one of said support plates having thereon at least one extending tongue member slideable into said chassis support member opening for transmitting torque from said chassis to said support plate, each of said support plates including at least one opening near its periphery for insertion of a securing fastener into said door outside said bore to non-rotatably secure said support plate to said door panel; and a threaded bushing, around each of said spindles, for bearing against each of said support plates to secure said support plates to said lock chassis whereby tightening of said bushings draws said support plates towards each other and snugly against the door panel.