Yale Security Inc.

Assa Abloy Access and Egress Hardware Group, Inc.

William S Middelaer

Christopher C Hill

Brian R Fournier

Todd C Zimmer

Christine E Voelker

A tool for adjusting the backset of a latch bolt. The latch bolt includes a latch bolt and a tailpiece. A housing receives the latch bolt and includes a transversely extending protrusion. A casing slidably receives the housing such that the protrusion on the housing is received in a slot on the casing and an inner end of the tailpiece extends from the housing and casing. The casing is rotated relative to the housing to allow relative axial movement between the casing and the housing when transitioning between the first backset position and the second backset position. The tool includes a member defining a first slot for receiving the inner end of the tailpiece and a pair of second slots for receiving the pair of ears such that rotation of the tool rotates the tailpiece and the casing simultaneously.

Tool for use with adjustable backset latch

A latch assembly comprises a latch bolt and a tailpiece including a first tailpiece member mounted to the latch bolt and a second tailpiece member. The second tailpiece member is movably received in a bore of the first tailpiece member and operably connected to a latch operator. The second tailpiece member is received in one of two axially spaced recesses in the bore in a first backset position and a second backset position. Relative axial movement between the first tailpiece member and the second tailpiece member is prevented in a first relative rotational position in the first backset position and in a second relative rotational position in the second backset position, and relative axial movement is allowed in a third relative rotational position to allow the second tailpiece member to be moved between the first backset position and the second backset position. A housing slidably receives the latch bolt therein and a casing defining a peripheral slot having two axially spaced circumferential portions interconnected by a longitudinal portion receives the housing such that a protrusion on the housing is slidably received in the slot. Relative axial movement between the casing and the housing is prevented when the protrusion is in either one of the two circumferential portions of the slot in a first rotational position in the first backset position and in a second rotational position in the second backset position, and relative axial movement is allowed in a third rotational position to allow the protrusion on the housing to be movable along the longitudinal passage between the circumferential portions of the slot when transitioning between the first backset position and the second backset position.

Growing community of inventors

Simsbury, CT, United States of America

William S Middelaer