Lock assembly with an interchangeable lock core

Patent metadata

Field	Value
Publication number	US-9476226-B2
Application number	US-201313737580-A
Country	US
Kind code	B2
Filing date	Jan 9, 2013
Priority date	Jan 10, 2012
Publication date	Oct 25, 2016
Grant date	Oct 25, 2016

Abstract

An interchangeable core assembly for a lock core assembly capable of being flush mounted in a door including a housing, a lock insert mounted in the housing, a lock core mounted in the housing adjacent to and cooperative with the lock insert, a thumb-turn assembly mounted in the non-cylindrical housing coaxial with the lock core, a first offset cam mounted on the thumb-turn assembly for rotation therewith, and a second offset cam mounted on the lock core for rotation therewith. The barrel of the lock core assembly is unobstructed by locking train components such that the lock core assembly extends completely through the latch assembly when installed therein. The lock core assembly is secured to the latch assembly without threads and a means to remove/replace the thumb-turn component is provided.

First claim

What is claimed is:

1. A core assembly for mounting a core component to a latch assembly in a door stile, the latch assembly having an opening defined by a peripheral edge, the peripheral edge including an outer face and an inner face, the core assembly comprising:
a housing including an outer surface and an inner surface, the inner surface defining a channel configured for receiving the core component; and
at least one locking dog including an ear and a shoe portion, the at least one locking dog configured for being moveably coupled to the housing between a retracted position and an extended position,
wherein the housing is configured for being inserted into the opening of the latch assembly when the at least one locking dog is disposed adjacent to the inner surface of the housing while the at least one locking dog is in the retracted position, and wherein the ear of the at least one locking dog extends beyond the outer surface of the housing adjacent to the inner face of the latch assembly when in the extended position to retain the core assembly within the opening of the latch assembly.

2. A lock core assembly in accordance with claim 1 , wherein the core component is one of a lock core, a thumb-turn component, or a combination lock core/thumb-turn component.

3. A lock core assembly in accordance with claim 1 , wherein the shoe portion includes a ramp, wherein the ramp is configured for contacting the core component when the core component is inserted into the channel of the housing so that the at least one lock dog moves toward the extended position.

4. A lock core assembly in accordance with claim 3 , wherein the ramp is an arcuate ramp.

5. A lock core assembly in accordance with claim 1 , wherein the shoe portion is generally cylindrical.

6. A lock core assembly in accordance with claim 1 , wherein the housing has a slot defined therein that extends between the inner surface and the outer surface, and wherein the slot is configured for receiving the ear of the at least one locking dog.

7. A lock core assembly in accordance with claim 6 , wherein the at least one locking dog further includes a stop that is configured for retaining the ear within the slot.

8. A lock core assembly in accordance with claim 7 , wherein the stop is a through-pin.

9. A lock core assembly in accordance with claim 1 , wherein the housing includes an annular step formed in the outer surface, and wherein the annular step is configured for contacting the outer face of the peripheral edge when the housing is inserted into the opening.

10. A lock core assembly in accordance with claim 9 , wherein the annular step and the ear of the at least one locking dog are spaced apart a distance equal to a width of the peripheral edge of the latch assembly.

11. A lock core assembly in accordance with claim 1 , wherein the housing includes a circular cross-section.

12. A lock core assembly in accordance with claim 1 , wherein the housing includes a non-circular cross-section.

13. A lock core assembly in accordance with claim 12 , wherein the housing includes an elongated cross-section.

14. A lock core assembly in accordance with claim 1 , wherein the outer surface of the housing is not threaded.

15. A lock core assembly in accordance with claim 1 , wherein the housing is net formed.

16. A method of assembling a core assembly to a latch assembly, wherein the latch assembly is configured for locking and unlocking a door, the method comprising the steps of:
a) preassembling the core assembly, the core assembly including a housing having a first end and a second end, wherein a first locking component is associated with the first end, and wherein a second locking component is associated with the second end;
b) providing the latch assembly, wherein the latch assembly includes a locking train and an opening for receiving the housing of the core assembly, wherein the opening is defined by a peripheral edge, the peripheral edge including an outer face and an inner face, and wherein the opening is substantially unimpeded by components of the latch assembly; and
c) inserting one of the first end or the second end of the housing into the opening so that at least a portion of the housing passes through the opening and past the outer face and the inner face of the peripheral edge.

17. A method in accordance with claim 16 , wherein the housing is inserted into the opening from either a first side of the door or a second side of the door.

18. A method in accordance with claim 16 , wherein the housing is inserted into the opening so that a substantial length of the housing passes entirely through the opening.

19. A method in accordance with claim 16 , wherein the first locking component is one of an interchangeable core (IC) component or a thumb-turn component.

20. A method in accordance with claim 19 , the first locking component is an IC component, and wherein the IC component includes an IC and an IC insert.

21. A method in accordance with claim 20 , wherein the second locking component is a thumb-turn component.

22. A method in accordance with claim 16 , wherein the first and second locking components are both an IC component.

23. A method in accordance with claim 16 , wherein an outer surface of the housing is not threaded.

24. A method in accordance with claim 16 , wherein a cross-section of the housing is circular.

25. A method in accordance with claim 16 , wherein a cross-section of the housing is non-circular.

26. A method of assembling a core assembly to a latch assembly, the latch assembly including an opening for receiving the core assembly, the method comprising the steps of:
a) providing a core housing including an inner surface, wherein the inner surface defines a channel for receiving a core component;
b) inserting the core housing into the opening in the latch assembly;
c) inserting at least one locking dog into the core housing adjacent the inner surface either before step b) or after step b);
d) inserting the core component into the channel after the at least one locking dog is inserted to form at least a portion of the core assembly; and
e) causing the at least one locking dog to secure the core assembly in the latch assembly by the insertion of the core component into the channel.

27. A method in accordance with claim 26 , wherein the core housing includes a housing face, wherein the core assembly and latch assembly are mounted within a door stile, and wherein the housing face is substantially flush with an outer surface of the door stile.

28. A method in accordance with claim 27 , wherein the core component is an IC component, wherein the IC component includes an IC insert face and an IC face, and wherein the housing face, the IC insert face, and the IC face are all substantially flush with the outer surface of the door stile.

29. A method in accordance with claim 27 , wherein the outer surface of the door stile is associated with a secure side of a door.

30. A method in accordance with claim 27 , wherein the core assembly is mounted within a recess of the door stile, wherein the recess includes an inner wall, and wherein an inner face of the core housing is positioned adjacent to the inner wall.

31. A method in accordance with claim 26 , wherein the core component is a thumb-turn lever, wherein the thumb-turn lever includes a

Assignees

• Hanchett Entry Systems Inc

Inventors

• Wheeler Thomas J
• Burge George Robert

Classifications

• Y10T29/49826

  Assembling or joining · CPC title

• E05B63/0056 Primary

  Locks with adjustable or exchangeable lock parts (adjustable strikers E05B15/024; adjustable to different keys E05B35/083; adjustable bolt or backset E05B63/06; adjustable coupling means for bars, rods, cables E05C9/20) · CPC title

• Y10T70/5155

  Door · CPC title

• E05B17/0004

  Lock assembling or manufacturing (making locksmith's goods of sheet metal B21D53/38; assembling in general B23P21/00) · CPC title

• Y10T29/49817

  with other than ancillary treating or assembling · CPC title