US2720103A

US2720103A - Cabinet lock

Info

Publication number: US2720103A
Application number: US266947A
Authority: US
Inventors: Abraham H Golden; Mathias M Check
Original assignee: Yale and Towne Manufacturing Co
Current assignee: Yale and Towne Manufacturing Co
Priority date: 1952-01-17
Filing date: 1952-01-17
Publication date: 1955-10-11
Anticipated expiration: 1972-10-11

Description

Oct. 11, 1955 Filed Jan. 17, 1952 A. H. GOLDEN ET AL CABINET LOCK mum 2 Sheets-Sheet l I I I I I r 4- 21 INVENTOREJ l7 afAAw 4 BY G'O/JCA/ ATTORNEY Oct. 11, 1955 A. H. GOLDEN ETAL 2,720,103

' CABINET LOCK Filed Jan. 17, 1952 2 Sheets-Sheet 2 1 I ATTO R N EY United States Patent CABINET LOCK Abraham H. Golden, Stamford, and Mathias M. Check, Noroton Heights, Conn., assignors to The Yale & Towne Manufacturing Company, Stamford, Conn., a corporation of Connecticut Application January 17, 1952, Serial No. 266,947

9 Claims. (Cl. 70-86) This invention relates to cabinet locks and more particularly to a cabinet lock that is adapted for universal mounting in drawers or doors of varying thickness. in addition, our invention contributes a cabinet lock that may be readily inserted into the jamb for locking a door or into a cabinet for locking a drawer.

Cabinet locks of the prior art are usually equipped with a main casing portion and an extending nose, the lateral distance from the front of the nose to the rear of the casing being approximately the same length as the thickness of the door or drawer into which the cabinet lock is to be assembled. Where surface applied, the nose is as long as the thickness of the door or drawer. Because of the particular construction the noses of locks of the particular class are supplied in diflferent lengths in order to fit dilferent drawers, and a lock of the particular class is well illustrated in Patent No. 1,584,992.

Our invention, through a particular arrangement of the parts thereof, makes it possible to assemble a simple locking assembly into a drawer or door of any thickness, and makes it possible to insert our locking mechanism readily into a relatively thick jamb or cabinet body, all as will be clear to those skilled in the art.

As a feature of our invention we utilize a. locking cylinder that is adapted to be inserted into an opening formed in the face of the door or jamb, the cylinder being adapted for assembly to a bolt housing adapted to be inserted in an opening in the edge of the door or the edge of the jamb as the case may be. Once mounted within the door, drawer or jamb, the two parts of our locking mechanism can readily be assembled and held in operating relationship.

As a further detailed feature of our invention we utilize a simple screw threaded assembly between the bolt housing and the cylinder that is adapted to be made after the cylinder and bolt housing are inserted in their respective openings, thereby mounting the parts in assembled relation and forming a complete lock assembly.

As a still further detailed feature of our invention the lock housing comprises a front plate equipped for a pair of screws, one being a wood screw, although a machine screw may be utilized where the lock is assembled to a metal door. Regardless, the particular screw engages and locks the front plate to the member in which the lock is mounted. The other screw is adapted to lock the bolt housing to the cylinder in its opening, that opening being preferably at right angles to the first opening.

A still further feature of our invention resides in the utilization of a novel form of cam operated by the key plug and coacting with the bolt for projecting or retracting the bolt.

As another feature of our invention we so construct our novel cabinet lock that it is adapted to be mounted in holes that are formed in the door or other structural member by boring, the lock cylinder being inserted into a hole bored in the face of the structural member, and the bolt housing being inserted into a bore in the edge of the member. An additional bore is formed in the edge 2 ,7 Zll,lll Patented Oct. 11, 1955 of the member to receive the screw that assembles the bolt housing to the cylinder, and the front plate of the lock preferably is so formed that it will be mounted flush in a recess that is made in the edge of the structural member principally by boring.

We have thus outlined rather broadly the more important features of our invention in order that the detailed description thereof that follows may be better understood, and in order that our contribution to the art may be better appreciated. There are, of course, additional features of our invention that will be described hereinafter and which will form the subject of the claims appended hereto. Those skilled in the art will appreciate that the conception on which our disclosure is based may readily be utilized as a basis for the designing of other structures for carrying out the several purposes of our invention. It is important, therefore, that the claims be regarded as including such equivalent constructions as do not depart from the spirit and scope of our invention, in order to prevent the appropriation of our invention by those skilled in the art.

Referring now to the drawings:

Fig. l is a view showing our novel cabinet lock installed in a member.

Fig. 2 is a cross-sectional view taken on the line 2.2 of Fig. 1.

Figs. 3 and 4 are cross-sectional views taken respectively on the lines 3-3 and 4-4 of Fig. 2.

Fig. 5 is a perspective view showing the parts in exploded relationship.

The preferred form of our novel cabinet lock that we have shown in the drawings includes as the two principal parts of its assembly the lock cylinder 10 and the bolt housing 11, and for the purpose of providing a clear understanding of our invention I have shown these parts in their installed relation in a member A. Certain openings are, of course, prepared to receive the lock in the member A, and these openings are arranged in a particular manner that will become apparent as the description proceeds.

In the cylinder 10 is a rotating key plug 12 and, for purposes of description, we have chosen to illustrate a key plug of the type that is controlled by the position of key actuated tumblers 13 relatively to grooves 14 in the interior of the cylinder 10, although the specific type of key plug that is used is not important to our invention. We do, however, mount a cam 16 upon the rear end of the key plug 12 by suitable means such as an oblong stud 15 to which the cam is staked, so that the cam rotates With the key plug and also retains the key plug in the cylinder. The cam 16 moves the bolt, as will be described, through an integral arm portion 17 that extends toward the outer end of the cylinder 10 along the side of the cylinder. Because the cylinder 10 is to be installed with a nominal clearance in an opening B bored in the front face of the member A, the arm portion 17 of the cam is located within the extreme diameter of the cylinder 10, and in order to allow movement of the arm 17 in this position as the key plug 12 rotates, the side of the cylinder is formed with a recess 18. The ends of the recess 18 form limits for the rotation of the arm 17 and preferably will allow the arm a movement of about The side of the cylinder 10 opposite the recess 18 may be relieved, although preferably at least one projection 19 is left at this side on the outer periphery of the cylinder to serve with other parts of the periphery as a guide to locate the cylinder 10 in approximately its proper position when it is inserted into the bore B. A flange 20 on the outer end of the cylinder 10 will, of course, locate the cylinder in its proper longitudinal position in the bore B.

For assembly with the cylinder 10, the bolt housing 11 is adapted to be inserted in a bore C in the edge of the member A so as to occupy a particular position offset at one side of the cylinder adjacent the arm 17 of thecam. In this position of the housing, a fiat bolt 21 in the housing is supported relatively to the arm 17 so that movement of this arm projects and retracts the bolt. Actually, one edge of the flat bolt 21 extends into the recess 13 of the cylinder 1'0 in ordertoengage the arm 17 of the cam, and this edge 'is formed with a slot 22 in which the arm 17 operates.

The means in our invention whereby thebolt housing 11 is assembled in its particular position relatively to the cylinder includes a part that extends laterally from thehousing outwardly of the cylinder 10, andwe prefer to utilize as this part one end 23 of a front plate 24. Offset from the bolt housing 11 on the lower surface of the part "23 is an abutment 25. An opening is formed through the part 123 and the abutment '25 to receive a screw '26, and when this screw is engaged in a threaded bore in a medial portion or" the cylinder 10, the cylinder is drawn against the abutment 25 so that the housing '11 and cylinder 1'0 are assembled in their roper positions relatively to each other. The recesses that are formed in the member A preferably include a recess D that affords the front plate '24 a ilush mounting in the edge of the member A, and do, of course, include a bore E extending inwardly from the bottom of the front plate recess D to receive the abutment 25. 'Because a part of the member A is confinedbetween the cylinder 10 and the part 23 of the front plate, the lock is quite securely mounted through the action of the screw 26 alone. We prefer, however, to secure that end of the front plate '24 which is opposite the end v23 directly to the member A by a screw 27, but in any event the screws whereby our novel cabinet lock is secured are inserted only at the edge of the member in which the lock is mounted. Also, because of the arrangement that we have described, the bolt housing 11 is assembled always in one particular positionrelatively to the cylinder'lt) without regard to the thickness of the member A in which it is mounted, and therefore our novel cabinet lock is universal in its application to members of -different thicknesses.

We have shown the bolt housing 11 in the preferred form of our invention as including a pairof sections 28,

best seen in Figs. 4 and 5, that guide opposite faces .of

the fiat bolt 21, and that are integrally joined at their outer ends by the front plate '24 and at .their inner ends by a bar '29. The housing sections 23 are ofapproximately the same width as the bolt 21 and do not overlie the edges of the bolt, so that these sections themselves r do not account for any part of the diameter of the bore C in which the housing 11 is mounted. .Parts of .the housing sections '28 are cut away to avoid the recess 18 of the cylinder, thereby defining a diagonal opening 30 in the housing, and it is through this opening that the bolt 21 extends so as to coact with the cam 17. The edges of the fiat bolt '21 are guided by the front .plate 24 and by the bar '29, a lower portion of the edge of the bolt 21 being stepped inwardly to pass the bar 29 and also to provide a shoulder 31 whereby the bar serves as a stop for the retracting movement of the bolt.

It is believed that the operation and the advantages of our novel cabinet lock will now be apparent from the foregoing description.

"We now claim:

1.In a lock of the class described, a bolt housing adapted to enter an opening in one side of a structural member in which the lock is to be mounted, a bolt in an endwise 'bolt cavity formed in said housing, an end parton said bolt housing extendingtransversely relatively tosaid bolt 'cavitytoilie "at the said side of the structural'member, a cylinder adapted to enter an opening in another side of said member at right 'angles to said ffirst side, a'key plug in said cylinder, .a lug on saidend partextending inwardly therefrom and terminating in a ill surface for abutting said cylinder, fastening meansfor drawing said cylinder against said lug surface to secure the cylinder and bolt housing relatively to one another, and a cam on said key plug in position to project and retract the bolt when the housing and cylinder are secured by said fastening means.

2. In a lock of the class described, a bolt housing adapted to enter an opening in one side of a structural member in which the lock is to be mounted, a .bolt movable in an endwise bolt cavity formed in said housing, a front plate on one end of said bolt housing extending transversely relatively to said bolt cavity to lie at the said side of the structural member, a lock cylinder adapted to enter an opening in another side of said member at right angles to said first side, screw fastening means carried by said front plate transversely outwardly .of said bolt housing and extending to a threaded bore in said cylinder to draw said cylinder toward said front plate of said bolt housing, a key plug rotatable in said cylinder, tumblerslocking said key plug to said cylinder, and .a cam on said key plug in position to project and retract the bolt when the housing and cylinder are secured by said fastening means.

3. In alock of the class described, a bolt housing adapted 'to enter -an opening in one side of a structural member .in which the lock is to be mounted, a bolt Within an endwise bolt cavity formed in said housing, an end part on said bolt housing extending transversely relatively to said bolt cavity to lie at the said side of the structural member, a lock cylinder adapted to enter a bore in another side of said member at right angles to said first side, said end part having a first side for abutting said cylinder, fastening means for drawing said cylinder against said end part surface to secure the cylinder and bolt housing relatively to one another to form a unitary assembly, and a key plug in said cylinder for projecting and retracting the bolt in its housing.

4. In a lock of the class described, a bolt housing adapted to enter an opening in one side of a structural member in which the lock is to be mounted, a bolt in an endwise bolt cavity formed in said housing, a front plate on said bolt housing extending transversely relatively to said bolt cavity to lie at the said side of the structural member, a cylinder adapted to enter an opening in another side of said member at right angles to said first side, a key plug in said cylinder, tumblers locking said key plug to said cylinder, a screw extending from said front plate into a threaded opening of said cylinder for drawing said cylinder toward said bolt housing, surfaces on said cylinder and bolt housing brought together by said screw to form a unitary assembled structure of said bolt housing and cylinder, and a cam on said key plug to project and retract the bolt when the housing and cylinder are assembled by said screw.

5. In a lock of the class described, a bolt housing adapted to enter an opening in one side of a structural member in which the lock is to be mounted, .a bolt in an endwise bolt cavity formed in said housing, a front plate on said bolt housing having flanges extending transverselyrelatively tosaid bolt cavity in opposed directions to lie at the said side of the structural member, a cylinder adapted to enter a bore in anothersidezof said member at right angles tosaid first side, a lug on one flange of said front plate'having a surface for abutting said cylinder, a machine screw for engagement between said front plate and cylinder to draw said cylinder against said lug surface whereby to secure the cylinder and bolt housing relatively to one another, the opposed flange havingan opening for a second screw to secure it to said structural member, anda key plug in said cylinder effective to .project and retract the bolt.

6. 'In a lock of the .classdescribed, a bolt housing adapted to enter .an opening in one side .of a structural member in which the lock;is to .be mounted, a bolt in;an endwise bolt cavity formed in said housing, an end part on said bolt housing extending transversely relatively to said bolt cavity to lie at the said side of the structural member, a cylinder adapted to enter an opening in another side of said member at right angles to said first side, a key plug in said cylinder, a lug on said end part adapted to lie in an opening in said member and terminating in a surface for abutting said cylinder, fastening means for drawing said cylinder against said lug surface to secure the cylinder and bolt housing relatively to one another, said end part and cylinder having surfaces for confining a part of the structural member when the cylinder and housing are secured by said fastening means whereby to secure the lock relatively to said member, and a cam whereby said key plug is elfective to project and retract the bolt when the housing and said cylinder are assembled in said member.

7. In a lock of the class described, a bolt housing adapted to enter a bore in one side of a structural member in which the lock is to be mounted, a bolt in an endwise bolt cavity formed in said housing, a front plate on said bolt housing extending transversely relatively to said bolt cavity to lie at the said side of the structural member, a cylinder adapted to enter a bore in another side of said member that is at right angles to said first side, a key plug in said cylinder, a lug on said front plate terminating in a surface for abutting said cylinder, a screw for drawing said cylinder against said lug surface to secure the cylinder and bolt housing relatively to one another, a screw for engagement between the front plate and the structural member whereby to secure the cylinder and bolt housing to said member, and a cam on said key plug in position to project and retract the bolt when the housing and cylinder are secured by the first screw.

8. In a lock of the class described, a cylinder adapted to enter a bore in one side of a structural member in which the lock is to be mounted, a key plug rotatable in said cylinder, a cam on said key plug extending at one side of the cylinder and adapted to enter said bore with the cylinder, a bolt housing adapted to enter a bore in a second side of the structural member at right angles to said first side, a bolt in an endwise bolt cavity formed in said bolt housing, an end part on said bolt housing lextending transversely relatively to said bolt cavity to lie at the said second side of the structural member, a lug on said end part terminating in a surface for abutting said cylinder, and fastening means for drawing said cylinder against said lug surface to secure the cylinder and bolt housing relatively to one another with said cam in position to project and retract said bolt.

9. In a lock of the class described, a cylinder adapted to enter a bore in one side of a structural member in which the lock is to be mounted, a key plug rotatable in said cylinder, a cam on said key plug extending at one side of the cylinder and adapted to enter the bore with said cylinder, a bolt housing adapted to enter a bore in a second side of the structural member at right angles to said first side, a bolt in an endwise bolt cavity formed in said housing, a front plate on said bolt housing extending transversely relatively to said bolt cavity to lie at the said second side of the structural member, a lug on said front plate extending inwardly and terminating in a surface for abutting said cylinder, a screw for drawing said cylinder against said lug surface to secure the cylinder and bolt housing relatively to one another, a portion of said bolt extending from said bolt housing and positioned at said one side of the cylinder when the cylinder and housing are secured by said screw, and said cam then coacting with said bolt portion to project and retract the bolt upon rotation of said key plug.

References Cited in the file of this patent UNITED STATES PATENTS 1,462,826 Rixson July 24, 1923 1,549,603 Murmann Aug. 11, 1925 FOREIGN PATENTS 600,303 France Feb. 4, 1926