Deadbolt assembly having selectable backset

Claim 2

A deadbolt assembly adapted to be mounted in the edge of a door for actuation by shaft means having the axis thereof at one of a selected plurality of backset positions with respect to said door edge, comprising: (a) a housing adapted to be mounted within the edge of a door and having top, bottom and side walls, (b) a bolt mounted for reciprocating movement in said housing between a retracted position within said housing and an extended position wherein a portion of said bolt extends out of said housing, (c) operating means for effecting said movement of said bolt including a lever arm having at one end thereof a pair of cylindrical hubs for receiving said shaft means therethrough, (d) a cradle supported for movement in said housing parallel with said bolt and including a bottom and side walls enclosing said lever, (e) said cradle side walls having recesses therein forming pivotal mountings for said lever hubs, (f) releasable means for latching said cradle to said housing in a selected one of a plurality of locations each corresponding to a predetermined backset position, (g) a link having forward and rearward ends, (h) means for pivotally connecting said rearward end of said link to said lever arm, (i) means for pivotally attaching said forward end of said link to said bolt at a selected one of a plurality of attachment points spaced longitudinally along said bolt to cause reciprocating movement of said bolt in response to oscillating movement of said lever arm, and (j) the relative spacing of said attachment points corresponding to the relative spacing of said locations of said cradle to provide for the same throw of said bolt in all of said backset positions of said cradle.

Claim 3

A deadbolt assembly as defined in claim 1 wherein said means for latching said cradle to said housing comprises a plurality of holes in said housing corresponding to said backset positions, and a spring-loaded tab carried by said cradle and proportioned for insertion in a selected one of said holes.

Claim 4

A deadbolt assembly as defined in claim 1 wherein said means for latching said cradle to said housing comprises a spring carried by said housing below said lever, a plurality of holes in said bottom wall of said housing spaced to correspond with said backset positions, and a tab carried by and extending downwardly from said spring for selective latching engagement in each of said holes.

Claim 5

A deadbolt assembly as defined in claim 1 wherein the portion of said bolt within said housing has a longitudinal slot therein providing a pair of rearward extensions which straddle said link and said lever arm, and said releasable attaching means comprises a pin received in a selected pair of aligned holes in said bolt-extensions and a hole in said forward end of said link.

Claim 6

A deadbolt assembly as defined in claim 4 further comprising means providing a pair of apertures in said housing side walls which are aligned with each other and adapted to be selectively aligned with each of said pairs of holes in said bolt extensions to facilitate transfer of said pin from one of said pairs of holes to another.

Claim 7

A deadbolt assembly as defined in claim 4 wherein said housing includes an upper wall having a slot extending longitudinally thereof, and each of said rearwardly extending members includes a wing on the inner end thereof which projects laterally outwardly thereof and overlies and rides on the adjacent edge of said housing slot during movement of said bolt from said retracted position to said extended position thereof and thereby prevents tilting of said bolt in a vertical plane during such movement.

Claim 8

A deadbolt assembly as defined in claim 5 wherein said housing slot includes a wide portion at the front end thereof for receiving said wings therethrough during assembly of said bolt into said housing.

Claim 9

A deadbolt assembly as defined in claim 1 further comprising means providing a plurality of locations on said lever arm for said means for pivotally connecting said rearward end of said link to said lever arm in order to vary the throw of said bolt.

Claim 10

A deadbolt assembly as defined in claim 1 wherein said housing includes an upper wall having a slot extending longitudinally thereof, and said lever arm being supported for oscillating movement between positions on opposite sides of the vertical and is of such length as to extend through and above said slot in said vertical position to provide a correspondingly long throw for said bolt.

Claim 11

A deadbolt assembly adapted to be mounted in the edge of a door for actuation by shaft means having the axis thereof at one of a selected plurality of backset positions with respect to said door edge, comprising: (a) a housing adapted to be mounted within the edge of a door and having top, bottom and side walls, (b) a bolt mounted for reciprocating movement in said housing between a retracted position within said housing and an extended position wherein a portion of said bolt extends out of said housing, (c) operating means for effecting said movement of said bolt including a lever arm having at one end thereof a pair of cylindrical hubs for receiving said shaft means therethrough, (d) a cradle supported for movement in said housing parallel with said bolt and including a bottom and side walls enclosing said lever, (e) said cradle side walls having recesses therein forming pivotal mountings for said lever hubs, (f) releasable means for latching said cradle to said housing in a selected one of a plurality of locations each corresponding to a predetermined backset position, (g) said releasable latching means comprising a spring carried by said housing below said lever, a plurality of holes in said bottom wall of said housing spaced to correspond with said backset positions, and a tab carried by and extending downwardly from said spring for selective latching engagement in each of said holes, (h) a link having forward and rearward ends, (i) means for pivotally connecting said rearward end of said link to said lever arm, (j) the portion of said bolt within said housing having a longitudinal slot therein providing a pair of rearward extensions which straddle said link and said lever arm, (k) said bolt extensions having pairs of aligned holes therein which are spaced longitudinally thereof, (l) a pin sized for removable insertion in each of said pairs of holes and in a hole in said forward end of said link to form a pivotal connection between said link and said bolt, and (m) the relative spacing of said pairs of holes in said bolt extensions corresponding to the relative spacing of said holes in said bottom wall of said housing to provide for the same throw of said bolt in all of said backset positions of said cradle.

Claim 12

A deadbolt assembly adapted to be mounted in the edge of a door for actuation by shaft means having the axis thereof at one of a selected plurality of backset positions with respect to said door edge, comprising: (a) a housing adapted to be mounted within the edge of a door and having top, bottom and side walls, (b) a bolt mounted for reciprocating movement in said housing between a retracted position within said housing and an extended position wherein a portion of said bolt extends out of said housing, (c) operating means for effecting said movement of said bolt including a lever arm having at one end thereof a pair of cylindrical hubs for receiving said shaft means therethrough, (d) a cradle supported for movement in said housing parallel with said bolt and including a bottom and side walls enclosing said lever, (e) said cradle side walls having recesses therein forming pivotal mountings for said lever hubs, (f) releasable means for latching said cradle to said housing in a selected one of a plurality of locations each corresponding to a predetermined backset position, (g) said releasable latching means comprising a spring carried by said housing below said lever, a plurality of holes in said bottom wall of said housing spaced to correspond with said backset positions, and a tab carried by and extending downwardly from said spring for selective latching engagement in each of said holes, (h) a link having forward and rearward ends, (i) means for pivotally connecting said rearward end of said link to said lever arm, (j) the portion of said bolt within said housing having a longitudinal slot therein providing a pair of rearward extensions which straddle said link and said lever arm, (k) said bolt extensions having pairs of aligned holes therein which are spaced longitudinally thereof, (l) a pin sized for removable insertion in each of said pairs of holes and in a hole in said forward end of said link to form a pivotal connection between said link and said bolt, and (m) the relative spacing of said pairs of holes in said bolt extensions corresponding to the relative spacing of said holes in said bottom wall of said housing to provide for the same throw of said bolt in all of said backset positions of said cradle.