Multipoint lock assembly for a swinging door

• US 5,373,716 A
• Filed: 10/16/1992
• Issued: 12/20/1994
• Est. Priority Date: 10/16/1992
• Status: Expired due to Fees

• Current Assignee: W&F Manufacturing, Inc.
• Original Assignee: W&F Manufacturing, Inc.
• Inventors: Gajer, Nandor, MacNeil, David I.
• Primary Examiner(s): Cuomo, Peter M.
• Assistant Examiner(s): BARRETT, SUZANNE LALE DINO
• Application Number:
  US07/961,643
• Time in Patent Office: 795 Days
• Field of Search: 292/36, 292/37, 292/92, 292/163, 292/165, 292/167, 292/170, 292/336.3, 292/169.12, 292/169.14, 292/340, 292/341, 292/341.12, 292/341.13, 70/99, 70/100, 70/102, 70/106, 70/109-111, 70/107, 70/92, 70/120, 70/140, 70/141, 70/144, 70/145, 70/131, 70/139, 70/150, 70/151 R, 70/156, 70/157 , 70/224, 70/486, 70/489
• US Class Current: 70/109
• CPC Class Codes: E05B 17/0025 Devices for forcing the wing firmly against its seat or to initiate the opening of the wing E05B15/022, E05B65/0817, E05B81/20, E05C19/14 take precedence
• CPC Class Codes: E05B 63/20 released automatically when the wing is closed for panic door locks of the vertical rod type E05B65/1013
• CPC Class Codes: E05B 65/1086 Locks with panic function, e.g. allowing opening from the inside without a ley even when locked from the outside
• CPC Class Codes: E05C 9/026 comprising key-operated locks, e.g. a lock cylinder to drive auxiliary deadbolts or latch bolts E05C9/023 takes precedence
• CPC Class Codes: E05C 9/1808 Keepers
• CPC Class Codes: E05C 9/1841 perpendicular to actuating bar
• CPC Class Codes: E05C 9/185 parallel with actuating bar
• CPC Class Codes: Y10T 292/084 Cam
• CPC Class Codes: Y10T 292/0908 Emergency operating means
• CPC Class Codes: Y10T 292/0971 Cam and lever
• CPC Class Codes: Y10T 70/5159 Emergency exit
• CPC Class Codes: Y10T 70/5235 Multiple latch bolts
• CPC Class Codes: Y10T 70/5478 Accessible at door edge
• CPC Class Codes: Y10T 70/5491 Manual bolt-manipulator is lever

Abstract

An improved multipoint lock assembly is provided for securing a swinging door in a tightly closed condition. The multipoint lock assembly includes a main actuator cartridge for retracting a plurality of latch pins mounted at vertically spaced positions along a free side edge of the swinging door, in response to rotational movement of indoor and outdoor lever handles. A trigger assembly retains the latch pins in a retracted position in response to lever handle rotation to open the door, and includes a trigger pin for engaging the adjacent door jamb upon door closure to release the latch pins for spring-loaded movement to an advanced position. The advanced latch pins engage ramped strike plates on the door jamb to draw in and tightly retain the closed door against the door jamb. When the latch pins are advanced, a security deadbolt on the main actuator cartridge can be thrown to positively lock the door. When the deadbolt is thrown, a panic release mechanism permits retraction of the deadbolt and latch pins in response to rotation of the indoor lever handle, but not in response to rotation of the outdoor lever handle.

Claims

1. A door lock assembly for use in locking a swinging door, said lock assembly comprising:

a plurality of latch pins mounted at spaced positions along a side edge of a swinging door for movement between an advanced position projecting outwardly from the door side edge, and a retracted position withdrawn substantially into the door side edge;

means for supporting said latch pins for displacement in a first direction along the door side edge concurrently with movement to said advanced position, and in a second opposite direction along the door side edge concurrently with movement to said retracted position;

actuator means for displacing said latch pins between said advanced and retracted positions, said actuator means including means for normally positioning and retaining said latch pins in said advanced positions;

trigger means responsive to movement of said latch pins to said retracted position for retaining said latch pins in said retracted position, said trigger means including means responsive to closure of the door for releasing said latch pins for return movement to said advanced position; and

a plurality of strike plates for mounting onto a door jamb in a position adjacent to the side edge of the swinging door when the door is in a closed position, said strike plates each including a ramped edge engaged by a respective one of said latch pins upon movement to said advanced position for drawing the door to a tightly closed condition.

2. The door lock assembly of claim 1 wherein said means for normally positioning and retaining said latch pins in said advanced position comprises at least one spring.

3. The door lock assembly of claim 1 wherein said latch pins are mounted at vertically spaced positions along a vertically extending side edge of the swinging door.

4. The door lock assembly of claim 1 wherein said latch pins are mounted at vertically spaced positions along a vertically extending side edge of the swinging door, said latch pins being displaced vertically downwardly concurrently with movement to said advanced position, and vertically upwardly concurrently with movement to said retracted position.

5. The door lock assembly of claim 1 wherein said actuator means further includes a deadbolt movable between a thrown position protruding from the door side edge and a retracted position withdrawn substantially into the door side edge, and means for displacing said deadbolt between said thrown and retracted positions.

6. The door lock assembly of claim 5 wherein said actuator means further includes means for preventing movement of said deadbolt to said thrown position when said latch pins are substantially in said retracted position.

7. The door lock assembly of claim 5 wherein said actuator means includes indoor and outdoor rotatable handle means disposed respectively at indoor and outdoor sides of the swinging door, and a drive linkage coupled between said indoor and outdoor handle means and said latch pins for displacing said latch pins between said advanced and retracted positions in response to rotation of either one of said indoor and outdoor handle means.

8. The door lock assembly of claim 7 wherein said actuator means further includes means for uncoupling said indoor and outdoor handle means from said drive linkage when said deadbolt is in the thrown position.

9. The door lock assembly of claim 8 further including a panic release mechanism responsive to rotation of said indoor handle means for displacing said deadbolt to said retracted position and for displacing said latch pins to said retracted position.

10. The door lock assembly of claim 9 wherein said actuator means comprises an actuator housing having a recessed track formed on the exterior thereof, and wherein said panic release mechanism comprises a cam plate mounted within said recessed track.

11. The door lock assembly of claim 10 wherein said actuator housing has indoor and outdoor sides each having a recessed track formed therein on the exterior thereof, and wherein said cam plate is mounted within said recessed track on the indoor side of said actuator housing.

12. The door lock assembly of claim 1 wherein each of said latch pins has a roller head thereon for rolling engagement with the ramped edge of the associated one of said strike plates.

13. The door lock assembly of claim 1 wherein said plurality of latch pins comprise three of said latch pins mounted at spaced positions along said door side edge.

14. The door lock assembly of claim 1 wherein each of said strike plates has a central opening formed therein of closed loop geometric shape, and with one side edge thereof defining said ramped edge.

15. The door lock assembly of claim 14 wherein each of said strike plates has a pair of said ramped edges to permit reversible installation on a door jamb for either one of left- or right-handed swinging movement of the door to the closed position.

16. A door lock assembly for use in locking a swinging door, said lock assembly comprising:

at least one latch pin mounted along a side edge of a swinging door for movement between an advanced position projecting outwardly from the door side edge, and a retracted position withdrawn substantially into the door side edge, said latch pin moving in a first direction along the door side edge concurrently with movement to said advance position, and in an opposite direction along the door side edge concurrently with movement to said retracted position;

spring means for urging said latch pin normally to said advanced position;

actuator means on the door operable to displace said latch pin from said advanced position to said retracted position;

trigger means responsive to movement of said latch pin to the retracted position for retaining said latch pin in the retracted position, said trigger means including a trigger pin responsive to closure of the door for releasing the latch pin for spring-loaded return movement to said advanced position; and

a strike plate for mounting onto a door jamb in a position adjacent to the door side edge when the door is closed, said strike plate having a ramped edge engaged by said latch pin upon movement of said latch pin to the advanced position for drawing the door to a tightly closed position.

17. The door lock assembly of claim 16 wherein said strike plate has a pair of said ramped edges to permit reversible installation onto a door jamb adapted for either one of left- and right-handed swinging movement of the door to the closed position.

18. The door lock assembly of claim 17 wherein said actuator means further includes a deadbolt movable between a thrown position protruding from the door side edge and a retracted position withdrawn substantially into the door side edge, and means for displacing said deadbolt between said thrown and retracted positions.

19. The door lock assembly of claim 18 wherein said actuator means further includes means for preventing movement of said deadbolt to said thrown position when said latch pin is substantially in said retracted position.

20. The door lock assembly of claim 18 wherein said actuator means includes indoor and outdoor rotatable handle means disposed respectively at indoor and outdoor sides of the swinging door, and a drive linkage coupled between said indoor and outdoor handle means and said latch pin for displacing said latch pin between said advanced and retracted positions in response to rotation of either one of said indoor and outdoor handle means.

21. The door lock assembly of claim 20 wherein said actuator means further includes means for uncoupling said indoor and outdoor handle means from said drive linkage when said deadbolt is in the thrown position.

22. The door lock assembly of claim 21 further including a panic release mechanism responsive to rotation of said indoor handle means for displacing said deadbolt to said retracted position and for displacing said latch pin to said retracted position.

23. The door lock assembly of claim 16 wherein said latch pin has a roller head thereon for rolling engagement with said ramped edge of said strike plate.

24. The door lock assembly of claim 16 wherein said strike plate has a central opening formed therein of closed loop geometric shape, and with one side edge thereof defining said ramped edge.

25. A door lock assembly for use in locking a swinging door, said lock assembly comprising:

a plurality of latch pin units mounted at spaced positions along a side edge of a swinging door, each of said latch pin units including a latch pin movable between an advanced position projecting outwardly from the door side edge and a retracted position withdrawn substantially into the door side edge, and cam means movable back and forth in a direction along the door side edge for displacing said latch pin in a first direction along the door side edge concurrently with movement to said advanced position and in a second opposite direction along the door side edge concurrently with movement to said retracted position;

an elongated drive bar extending generally along the door side edge for movement back and forth in a direction along the door side edge, said drive bar being coupled to said cam means for moving said latch pins of said latch pin units between said advanced and retracted positions;

actuator means including a drive linkage and indoor and outdoor handle means for operating said drive linkage to shift said drive bar in a first direction along the door side edge to move said latch pins from said advanced position to said retracted position;

spring means for normally urging said drive bar to shift in a second direction along the door side edge to move said latch pins from said retracted position to said advanced position;

trigger means responsive to movement of said latch pins to said retracted position for retaining said latch pins at said retracted position, said trigger means including means responsive to movement of the door to a closed position to release said latch pins for spring-loaded movement from said retracted position to said advanced position; and

a plurality of strike plates mounted on a door jamb adjacent to the door side when the door is closed, each of said strike plates being aligned generally with an associated one of said latch pins and including a ramped edge for engagement by said associated latch pin to draw the door side edge to a tightly closed position.

26. The door lock assembly of claim 25 wherein each of said latch pins has a roller head for rolling engagement with the ramped edge of the associated one of said strike plates.

27. The door lock assembly of claim 25 wherein each of said strike plates has a pair of said ramped edges to permit reversible installation onto a door jamb adapted for either left- and right-handed swinging movement of the door to the closed position.

28. The door lock assembly of claim 25 wherein said drive bar is mounted within a recessed channel formed in the door side edge.

29. The door lock assembly of claim 25 wherein said spring means comprises at least one spring mounted within one of said latch pin units for reaction between said one latch pin unit and said drive bar.

30. The door lock assembly of claim 25 wherein said trigger means comprises a trigger assembly mounted within one of said latch pin units for engaging a trigger stop on said drive bar, said trigger assembly further including a trigger pin for engaging a trigger strike mounted on the adjacent door jamb upon movement of the door to the closed position to release said latch pins.

31. The door lock assembly of claim 25 wherein said actuator means further includes a deadbolt movable between a thrown position protruding from the door side edge and a retracted position withdrawn substantially into the door side edge, and means for displacing said deadbolt between said thrown and retracted positions.

32. The door lock assembly of claim 31 wherein said actuator means includes an actuator housing, said means for displacing said deadbolt comprising a thumb turn and a keyed cylinder reversibly mountable on opposite sides of said actuator housing to define indoor and outdoor sides thereof, said thumb turn being mounted on the indoor side of said actuator housing and said keyed cylinder being mounted on the outdoor side thereof.

33. The door lock assembly of claim 31 wherein said actuator means further includes means for preventing movement of said deadbolt to said thrown position when said latch pins are substantially in said retracted position.

34. The door lock assembly of claims 31 wherein said actuator means further includes means for uncoupling said indoor and outdoor handle means from said drive linkage when said deadbolt is in the thrown position.

35. The door lock assembly of claim 34 wherein said drive linkage includes a pivot link movable with said indoor and outdoor handle means, a pivotal rocker arm carried by said drive bar, and spring means for retaining said rocker arm in a normal position for engagement by said pivot link upon rotation of either one of said indoor and outdoor handle means, said means for uncoupling said indoor and outdoor handle means from said drive linkage comprising a trip pin carried with said deadbolt for pivotably moving said rocker arm, when said deadbolt is thrown, to a position out of engagement with said pivot link upon rotation of said handle means, whereby rotation of said handle means is ineffective to displace said drive bar.

36. The door lock assembly of claim 34 further including a panic release mechanism responsive to rotation of said indoor handle means for displacing said deadbolt to said retracted position and for displacing said latch pins to said retracted position.

37. The door lock assembly of claim 36 wherein said actuator means comprises an actuator housing having a recessed track formed on the exterior thereof, and wherein said panic release mechanism comprises a cam plate mounted within said recessed track.

38. The door lock assembly of claim 37 wherein said actuator housing has indoor and outdoor sides each having a recessed track formed therein on the exterior thereof, and wherein said cam plate is mounted within said recessed track on the indoor side of said actuator housing.

39. The door lock assembly of claim 25 wherein each of said strike plates has a central opening formed therein of closed loop geometric shape, and with one side edge thereof defining said ramped edge.

40. A door lock assembly for use in locking a swinging door, said lock assembly comprising:

at least one latch pin mounted along a side edge of a swinging door for movement between an advanced position

projecting outwardly from the door side edge, and a retracted position withdrawn substantially into the door side edge;

actuator means for displacing said latch pin between said advanced and retracted positions, said actuator means including means for normally positioning and retaining said latch pin in said advanced position;

a deadbolt movable between a thrown position protruding from the door side edge and a retracted position withdrawn substantially into the door side edge;

means for displacing said deadbolt between said thrown and retracted positions;

said actuator means further including indoor and outdoor rotatable handle means disposed respectively at indoor and outdoor sides of the swinging door, and a drive linkage coupled between said indoor and outdoor handle means and said latch pin and operable for displacing said latch pin between said advanced and retracted positions in response to rotation of either one of said indoor and outdoor handle means;

means for uncoupling said indoor and outdoor handle means from said drive linkage when said deadbolt is in the thrown position, whereby rotation of either one of said indoor and outdoor handle means when said deadbolt is in the thrown position is ineffective to operate said drive linkage to displace said latch pin between said advanced and retracted positions;

a panic release mechanism responsive to rotation of said indoor handle means when said deadbolt is in the thrown position to displace said deadbolt to said retracted position and to displace said latch pin to said retracted position; and

trigger means responsive to movement of said latch pin to said retracted position for retaining said latch pin in said retracted position, said trigger means further including means responsive to closure of the swinging door for releasing said latch pin for return movement to said advanced position.

41. The door lock assembly of claim 40 wherein said actuator means comprises an actuator housing having a recessed track formed on the exterior thereof, and wherein said panic release mechanism comprises a cam plate mounted within said recessed track.

42. The door lock assembly of claim 41 wherein said actuator housing has indoor and outdoor sides each having a recessed track formed therein on the exterior thereof, and wherein said cam plate is mounted within said recessed track on the indoor side of said actuator housing.