LOCK ASSEMBLY WITH COMMON FACEPLATE
FIELD OF THE INVENTION
The present invention relates generally to mortise locks and particularly to a mortise lock with multiple bolts, which when thrown, may actuate auxiliary lock-bolt assemblies, and which have a common, single faceplate.
BACKGROUND OF THE INVENTION
Mortise locks, also known as rim locks, are well known locks set in a recess at an edge of a door and which includes latches or bolts which can be thrown into a locking engagement with recess formed in the door post. Mortise locks are also known that include multiple bolts and/or latches that may be actuated either by a key or by a door handle.
SUMMARY OF THE INVENTION
The present invention seeks to provide a novel mortise lock with multiple bolts that may actuate auxiliary lock-bolt assemblies, and which have a common, single faceplate, as is described more in detail hereinbelow.
There is thus provided in accordance with an embodiment of the present invention a mortise lock assembly comprising a mortise lock comprising a locking mechanism and a plurality of mortise-case lock bolts actuable by the locking mechanism, at least one auxiliary lock-bolt assembly operatively connected to at least one of the mortise-case lock bolts and comprising an auxiliary lock bolt actuable by movement of the at least one of the mortise-case lock bolts, and a single, common faceplate attached to the mortise lock and the at least one auxiliary lock-bolt assembly.
In accordance with an embodiment of the present invention the one or more auxiliary lock-bolt assemblies may comprise a straight lock bolt, a hooked lock bolt, a dead bolt and /or ,a drop bolt. The one or more auxiliary lock-bolt assemblies may comprise a geometrically lockable bolt.
Still further in accordance with an embodiment of the present invention the one or more auxiliary lock-bolt assemblies may comprise a first auxiliary lock-bolt assembly with a hooked lock bolt, and a second auxiliary lock-bolt assembly with a straight lock bolt.
In accordance with an embodiment of the present invention each of the mortise lock and the at least one auxiliary lock-bolt assembly comprises a separate faceplate and the single, common faceplate is attached to the separate faceplates.
Further in accordance with an embodiment of the present invention the locking mechanism of the mortise lock comprises provision for actuation by at least one of a key- operated lock cylinder and a handle.
Still further in accordance with an embodiment of the present invention the mortise-case lock bolts comprise at least one bolt throwable and retractable in a direction generally parallel to the single, common faceplate and at least one other bolt throwable and retractable in a direction generally perpendicular to the single, common faceplate.
There is also provided in accordance with an embodiment of the present invention a method comprising providing a single, common faceplate attachable to a mortise lock and at least one auxiliary lock-bolt assembly, providing a mortise lock comprising a locking mechanism and a plurality of mortise-case lock bolts actuable by the locking mechanism, providing a plurality of auxiliary lock-bolt assemblies operatively connectable to at least one of the mortise-case lock bolts and comprising an auxiliary lock bolt actuable by movement of the at least one of the mortise-case lock bolts, and selecting one of the auxiliary lock-bolt assemblies and attaching the selected auxiliary lock-bolt assembly and the mortise lock to the single, common faceplate. The method may further comprise replacing the selected auxiliary lock-bolt assembly with a different auxiliary lock-bolt assembly, and/or replacing the mortise lock with a different mortise lock. BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be understood and appreciated more fully from the following detailed description, taken in conjunction with the drawings in which:
Figs. 1 A and IB are simplified pictorial illustrations of a mortise lock assembly with a common, single faceplate, constructed and operative in accordance with an embodiment of the present invention, comprising a mortise lock, a first auxiliary lock-bolt assembly with a straight lock bolt, and a second auxiliary lock-bolt assembly with a hooked lock bolt, with the lock bolts in respective retracted and thrown positions;
Figs. 2A and 2B are simplified pictorial illustrations of a mortise lock assembly with a common, single faceplate, constructed and operative in accordance with another embodiment of the present invention, comprising a mortise lock, a first auxiliary lock-bolt assembly with a hooked lock bolt, and a second auxiliary lock-bolt assembly with a hooked lock bolt, with the lock bolts in respective retracted and thrown positions; and
Figs. 3 and 4 are simplified exploded and pictorial illustrations, respectively, of a mortise lock assembly, constructed and operative in accordance with yet another
embodiment of the present invention, comprising a common, single faceplate affixed to separate individual faceplates of a mortise lock and auxiliary lock-bolt assemblies.
DETAILED DESCRIPTION OF A PREFERRED EMBODIMENT
Reference is now made to Fig. 1A, which illustrates a mortise lock assembly 10 constructed and operative in accordance with an embodiment of the present invention.
Mortise lock assembly 10 comprises a mortise lock 12, which may include a locking mechanism 14 and a plurality of mortise-case lock bolts actuable by locking mechanism 14. Locking mechanism 14 may be housed in a case 18, and may comprise provision for being actuated by a key-operated lock cylinder or by a handle (not shown). For example, locking mechanism 14 may comprise a gear assembly 20 that may engage with a key-operated lock cylinder, as is well known in the art, and/or a generally square spindle 22 to which a handle may be attached, as is well known in the art.
Mortise lock 12 preferably a multiple bolt lock, i.e., it comprises a plurality of mortise-case lock bolts and/or latches (the terms bolts and latches being used interchangeably throughout the specification and claims). Although any number of lock bolts or latches may be employed in the present invention, in the illustrated embodiment mortise lock 12 includes a latch bolt 16 and a plurality of dead bolt latches 24 which are configured to protrude from a faceplate 26. In addition, the illustrated embodiment includes two lock bolts 30 and 32 arranged to move vertically in the sense of an upright door, and a lock bolt 34 arranged to move horizontally in the sense of an upright door. Lock bolts 30 and 32 may be thrown or retracted in a direction generally parallel to faceplate 26, as indicated by an arrow 28. Lock bolt 34 may be thrown or retracted in a direction generally perpendicular to faceplate 26, as indicated by an arrow 29.
Mortise lock assembly 10 may be provided with two handles or knobs (not shown) one on each side of a door (part of which is shown in Fig. 1A, and designated by numeral 25). As is well known in the art, the handle on the inner side of the door (i.e., the side inside a building) may be turned to actuate the locking mechanism of the door, whereas the handle on the outer side of the door (i.e., the side outside the building) may be movable or non-movable, depending on the particular application.
One or more auxiliary lock-bolt assemblies may be operatively connected to the mortise-case lock bolts. In accordance with an embodiment of the present invention, mortise lock 12 and the auxiliary lock-bolt assemblies are all attached to the same single, common faceplate 26. For example, in the embodiment illustrated in Fig. 1 A, an auxiliary lock-bolt assembly 40 may be positioned above mortise lock 12 (in the sense of Fig. 1A).
Auxiliary lock-bolt assembly 40 may comprise a hooked link 42, which engages a link member 44 attached to lock bolt 30. A door lock bolt 46 may also be attached to lock bolt
30 via link member 44, for engaging with a recess (not shown) in a door frame (not shown), as is known in the art. Hooked link 42, when moved in the direction of arrow 28, actuates an auxiliary lock bolt 48. That is, upward movement of mortise-case lock bolt 30
(in the sense of Fig. 1A) causes auxiliary lock bolt 48 to be thrown outwards of faceplate
26 to the position shown in Fig. IB. Conversely, downward movement of mortise-case lock bolt 30 (in the sense of Fig. 1 A) causes auxiliary lock bolt 48 to be retracted inwards of faceplate 26 to the position shown in Fig. 1 A.
In the embodiment illustrated in Fig. 1A, auxiliary lock bolt 48 comprises a straight lock bolt, which may provide dead bolt action.
Another auxiliary lock-bolt assembly 50 may be positioned below mortise lock 12 (in the sense of Fig. 1 A). Auxiliary lock-bolt assembly 50 may comprise a hooked link 52, which engages a link member 54 attached to lock bolt 32. A door lock bolt 56 may also be attached to lock bolt 32 via link member 54, for engaging with a recess (not shown) in a door frame (not shown), as is known in the art. Hooked link 52, when moved in the direction of arrow 28, actuates an auxiliary lock bolt 58. That is, downward movement of mortise-case lock bolt 32 (in the sense of Fig. 1A) causes auxiliary lock bolt 58 to be thrown outwards of faceplate 26 to the position shown in Fig. IB. Conversely, upward movement of mortise-case lock bolt 32 (in the sense of Fig. 1A) causes auxiliary lock bolt 58 to be retracted inwards of faceplate 26 to the position shown in Fig. 1A. A door lock bolt 57 may also be attached to lock bolt 34 for engaging with a recess (not shown) in a door frame (not shown), as is known in the art.
In the embodiment illustrated in Fig. 1A, auxiliary lock bolt 58 comprises a hooked lock bolt, which may provide drop bolt action with geometric locking. For example, a lock element 60 that operatively connects hooked link 52 with lock bolt 58 may be moved along a track 62 with an angularly extending track portion 64. In the fully thrown position of Fig. IB, lock element 60 is geometrically locked in angularly extending track portion 64, thereby geometrically locking auxiliary lock bolt 58. The auxiliary lock-bolt assembly 40 (illustrated as a straight lock bolt) may also be geometrically locked. Geometrically locking for such auxiliary lock bolts is described in Israel Patent Applications 147691 and 153522.
As described above, the embodiment of Figs. 1 A and IB comprises one auxiliary lock-bolt assembly 40 with straight lock bolt 48, and another auxiliary lock-bolt assembly
50 with hooked lock bolt 58. It is appreciated that other combinations of auxiliary lock- bolt assemblies with identical or different lock bolts may be provided in the scope of the invention. For example, Figs. 2A and 2B illustrate a mortise lock assembly 70 similar to mortise lock assembly 10, with like elements being designated by like numerals. Mortise lock assembly 70 comprises a common, single faceplate 26, to which are attached mortise lock 12 and a pair of auxiliary lock-bolt assemblies 50, each with a hooked lock bolt 58.
Reference is now made to Figs. 3 and 4, which illustrate a mortise lock assembly 80, constructed and operative in accordance with yet another embodiment of the present invention. Mortise lock assembly 80 may be similar to mortise lock assembly 10, with like elements being designated by like numerals. Mortise lock assembly 80 comprises mortise lock 12 and auxiliary lock-bolt assemblies 40 and 50. Unlike mortise lock assembly 10, in mortise lock assembly 80 the mortise lock 12 has its own faceplate 82, and auxiliary lock-bolt assemblies 40 and 50 each have their own individual faceplates 84 and 86, respectively, separate from the faceplate 82 of mortise lock 12. Mortise lock assembly 80 comprises a common, single faceplate 88 affixed to the separate individual faceplates 82, 84 and 86. Faceplate 88 may be attached or joined to individual faceplates 82, 84 and 86 by any suitable means, such as but not limited to, bonding with an adhesive, attaching with screws, rivets or other mechanical fasteners, snap fit or crimping, for example.
The present invention provides a novel method for installing mortise locks. A door manufacturer may manufacture a door with recesses and provisions for installing any of the mortise lock assemblies described hereinabove. The door manufacturer, or a building contractor, may initially install one set of mortise locks and auxiliary lock-bolt assemblies. A consumer may subsequently select a different set of mortise locks and auxiliary lock-bolt assemblies or exchange one or more of the mortise locks and auxiliary lock-bolt assemblies, as desired. The invention thus provides retrofit, modernization and upgrading capability for installing mortise lock assemblies.
It will be appreciated by persons skilled in the art that the present invention is not limited by what has been particularly shown and described hereinabove. Rather the scope of the present invention includes both combinations and subcombinations of the features described hereinabove as well as modifications and variations thereof which would occur to a person of skill in the art upon reading the foregoing description and which are not in the prior art.