Bolt lock and lockset adapter assembly

• US 4,080,813 A
• Filed: 04/26/1977
• Issued: 03/28/1978
• Est. Priority Date: 04/26/1977
• Status: Expired due to Term

• Current Assignee: Therma-Tru Virginia Limited Company
• Original Assignee: General Products Incorporated
• Inventors: McKann, H. Smith
• Primary Examiner(s): Wolfe, Robert L.
• Application Number:
  US05/790,891
• Time in Patent Office: 336 Days
• Field of Search: 70/450, 70/461, 70/447, 70/448, 70/451, 70/449, 70/370, 292/337
• US Class Current: 70/450
• CPC Class Codes: E05B 9/08 Fastening locks or fasteners or parts thereof, e.g. the casings of latch-bolt locks or cylinder locks to the wing on glass wings E05B65/0025
• CPC Class Codes: Y10T 70/8514 Face plate
• CPC Class Codes: Y10T 70/8541 Mounting arrangements
• CPC Class Codes: Y10T 70/8838 Adjustment provisions

Abstract

A mounting plate having three knockouts for three bolt locations of a deadbolt lock is mounted behind a rectangular opening in the edge of a hollow door. A filler plate and a cover plate are provided to cover the unused ones of the knockouts. When no deadbolt lock is installed in the door, the entire filler and cover plates are used to substantially fill the rectangular opening. When a dead bolt is installed in the door, a knockout is removed to leave an opening at the proper location for the bolt to pass through. The deadbolt lock bore drilling is made on the selected centerline either by the distributor or installer. The filler and cover plates are broken along weakened separation lines and appropriate portions thereof are attached to the mounting plate to cover the unused knockout locations. An adjustable backset lockset mounting arrangement is mounted adjacent the rectangular opening to receive and support the lockset in either of two positions. Breakouts in the door are preformed.

Claims

1. An adapter assembly for use in combination with a hollow door of the type having vertical inner and outer panels and an edge panel, the edge panel having a rectangular opening therein to accommodate a bolt extendable from a lock through the edge panel in any one of a plurality of possible vertical locations relative to a horizontal reference plane through said door, the adapter assembly comprising the combination of

a mounting plate fixedly attached to said door inwardly of said rectangular opening and substantially parallel with said edge panel,

said mounting plate having means defining a plurality of openings, one at each of the possible locations for the bolt,

an elongated filler plate having weakened zones along lines extending transversely across said filler plate,

said lines defining a plurality of separable filler plate portions one of which includes an opening of substantially the same size as the openings in said mounting plate,

said filler plate being insertable through said rectangular opening and attachable in contiguous relationship with said mounting plate;

and

an elongated cover plate insertable through said rectangular opening and attachable in parallel contiguous relationship with said filler plate,

said cover plate having weakened zones along lines extending transversely across said cover plate, said lines defining a plurality of separable cover plate portions any combination of which can be attached to said filler and mounting plates to conceal portions thereof not having a selected one of the possible bolt locations.

2. An adapter assembly according to claim 1 wherein said mounting plate comprises

an elongated rectangular plate having a length and width at least as great as the vertical and horizontal dimensions, respectively, of said rectangular opening;

end tab means fixedly attached to the ends of said plate for attaching said plate to the inner surface of said edge panel above and below said rectangular opening; and

side flange means extending toward and abutting said edge panel from said plate for maintaining said plate in parallel spaced relationship with the plane containing said edge panel.

3. An adapter assembly according to claim 2 wherein said mounting plate further includes

an easily removable closure in each of said openings.

4. An adapter assembly according to claim 3 wherein said filler plate comprises

an elongated rectangular plate having a longitudinal dimension not greater than the vertical dimension of said rectangular opening;

and

side flanges extending perpendicularly in one direction from said plate to form a body having a generally U-shaped cross section,

said filler plate being insertable between said flange means of said mounting plate.

5. An adapter assembly according to claim 4 wherein said cover plate comprises

an elongated flat plate insertable through said rectangular opening and between said side flanges of said filler plate.

6. An adapter assembly according to claim 1 wherein

said mounting plate includes three removable closures and further includes six holes to receive fastening screws,

said filler plate each consists of three separable portions two of said portions each being at least three times as long as the third portion,

each of said two portions having two holes to receive mounting screws,

the opening in said one portion of said filler plate being in one of said two longer portions.

7. An adapter assembly according to claim 1 wherein

said edge panel of said door includes a second opening longitudinally spaced from said rectangular opening to permit passage of a lockset bolt;

and wherein

each of said inner and outer panels includes means defining a non-circular opening comprising the area of overlap of two overlapping congruent circles, the centers of which lie at different distances from said edge panel, and

arcuate weakened portions defined by the non-overlapping portions of said circles, either of said arcuate portions being removable to complete, with said non-circular opening, a circular opening to receive a lockset having its central axis at a selected one of said different distances.

8. An assembly according to claim 7 which further comprises

strip metal support means extending between and perpendicular to said inner and outer panels for defining channels to receive the lockset and its bolt,

said support means including a curved portion bent to substantially enclose a cylindrical volume shaped like and aligned with the area defined by said overlapping circles, and

leg portions extending from said curved portion to said edge panel, said leg portions being fixedly attached to said edge panel and said mounting plate.

9. An assembly according to claim 8 and further comprising

a generally C-shaped strip member insertable through said circular opening and into said curved portion of said support means,

said strip member being formed or resilient material whereby said member can be diametrally compressed for insertion through said opening and then permitted to expand to its uncompressed shape,

the uncompressed inner diameter of said member being at least as great as the diameter of said circular opening.

10. An adapter assembly according to claim 1 wherein two of said openings in said mounting plate overlap, and wherein the lengths of the shortest portions of said filler and cover plates are equal to the distance between the transverse centerlines of said overlapping openings.

11. An adapter assembly for mounting on a hollow door of the type having vertical inner and outer panels and an edge panel, the edge panel having a rectangular opening therein to accommodate a bolt extendable from a lock through the edge panel in any one of a plurality of possible vertical locations relative to a horizontal reference plane through said door, the adapter assembly comprising the combination of

a mounting plate fixedly attached to said door inwardly of said rectangular opening and substantially parallel with said edge panel,

said mounting plate having means defining a plurality of spaced apart openings, one at each of the possible locations for the bolt;

an elongated cover plate insertable through said rectangular opening and attachable in parallel contiguous relationship with said mounting plate,

said cover plate having weakened zones along lines extending transversely across said cover plate, said lines defining a plurality of separable cover plate portions any combination of which can be attached to said mounting plate to conceal portions thereof not having a selected one of the possible bolt locations; and

a filler plate insertable through said opening and attachable between said mounting plate and said cover plate,

said filler plate having side flanges parallel with said inner and outer panels,

said filler plate having weakened zones along lines extending transversely across said filler plate, said lines defining a plurality of separable selectively usable portions.