US2668073A - Latch mechanism - Google Patents

Latch mechanism Download PDF

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Publication number
US2668073A
US2668073A US21297151A US2668073A US 2668073 A US2668073 A US 2668073A US 21297151 A US21297151 A US 21297151A US 2668073 A US2668073 A US 2668073A
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US
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Grant
Patent type
Prior art keywords
portion
bolt
position
fig
lock
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
Inventor
Frank R Collar
Jack C Mitchell
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Adams Rite Manufacturing Co
Original Assignee
Adams Rite Manufacturing Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Grant date

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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00Locks or fastenings with special structural characteristics
    • E05B63/12Locks or fastenings with special structural characteristics with means carried by the bolt for interlocking with the keeper
    • E05B63/127Locks or fastenings with special structural characteristics with means carried by the bolt for interlocking with the keeper the bolt having an additional rotating bolt or movement
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/08Bolts
    • Y10T292/096Sliding
    • Y10T292/1014Operating means
    • Y10T292/1022Rigid
    • Y10T292/1028Sliding catch
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00Closure fasteners
    • Y10T292/08Bolts
    • Y10T292/096Sliding
    • Y10T292/1037Pivoted end
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00Locks
    • Y10T70/50Special application
    • Y10T70/5093For closures
    • Y10T70/5155Door
    • Y10T70/5199Swinging door
    • Y10T70/5246Dead bolts
    • Y10T70/5296Single
    • Y10T70/5319Sliding
    • Y10T70/5327Keeper interlocking

Description

Feb. 2, 1954 F. R. COLLAR ET AL 2,668,073

LATCH MECHANISM Filed Feb. 27, 1951 FQflfi/K 2. 60461949, JRC'KC. MTG/ 62A,

INVENTORS.

BY Qua/l ermavn Patented Feb. 2, 1954 LATCH MECHANISM Frank R. Collar,

Los Angcles, and Jack C. Mitchell, La Crescenta,

Calif., assignors to Adams Rite Manufacturing Company, Glendale, Calif., a corporation of California Application February 27, 1951, Serial No. 212,971 2 Claims. (01. 292-192) The present invention relates generally to looks, and is more particularly concerned with a door lock for use with folding accordion type doors, sliding doors, and the like.

It is one object of the preesnt invention to provide a lock structure of simple, compact construction, having a small number of moving parts, and which may be economically manufactured.

A further object has to do with the provision of a novel lock structure having a shielded reciprocally mounted bolt arranged to be protracted from a shielded position into interlocking engagement with a keeper, andwhich will be deadlocked in the keeper interlocking position.

Another object of the herein described invention is to provide a uniqu keeper interlocking mechanism which is automatically moved into interlocking and released positions with respect to the keeper in response to protraction and retraction movements of the bolt.

Further objects of the invention will be brought out in the following part of the specification, wherein detailed description isfor the purpos of fully disclosing theinvention without placing limitations thereon.

Referring to the accompanying drawings, which are for illustrative purposes only:

Fig. 1 is a side elevational view of a lock embodying the features of the present invention;

Fig. 2 is an edge elevational view of the same;

Fig. 3 is a sectional view, portions being broken away to show certain details, the bolt being in retracted position, taken substantially on line 33 of Fig. 2';

Fig. 4 is a view similar to Fig. 3, except that the lock is shown with the boltin protracted keeper engaging position, and is locked against opening; and

Fig. 5 is an enlarged fragmentary view illustrating the operative action of the bolt keeper engaging jaws.

Referring now to the drawings, the lock structure of the present invention is shown as being embodied in an enclosing casing, as generally indicated by the numeral l0, having spaced apart side walls II and I2.

The side wall II, as shown in Figs. 2 and 3 is deformed along a marginal edge to provide spaced apart face mounting flanges l3 and II which respectively are provided with mounting screw receiving apertures l5 by which the casing and associated lock mechanism may be mounted in a door edge.

Between the flanges 3 and M, the wall H is extended and turned back upon itself to provide a U-shaped projecting portion l6 which forms a shield for one end of the lock bolt I! which will hereinafter be described in detail. The transverse configuration of the projecting portion I6 is such that it will conform with the shape of an abutment strip placed along the door edge.

The bolt l! is of laminated construction, being composed of side plates l8 and I9, having a straight portion 26 at one end and an integrally formed U-shaped portion 2| at its other end which defines a side opening recess 22. The plates I8 and I 9 are held in spaced apart relation by means of a spacer plate 23, as shown in Fig. 5, which generally conforms to the U-shaped end portion 2| of the side plates. The side plates are secured to the spacer plate by conventional means, and in the present instance is shown as being spot welded at spaced points as indicated by the numeral 24.

The bolt I1 is supported for reciprocal movement in the casing, spaced pins 25-25 being carried by the side plates l8 and 9, these pins being arranged to extend into an adjacent slot 26 of the side wall II or |2 as the case may be. Thus, the bolt is positioned with its straight end portion 20 extending into the projecting portion It,

the bridging portion thereof being provided with a slot 2'! through which the end portion 26 may be moved to protractile and retractile positions.

In the straight portion 2|! of the bolt, between the spaced plates I8 and I9, right and left hand keeper engaging jaws28a and 28b are mounted.

These jaws are of similar construction, each hav-' ing divergent arms '29 and 30 extending outwardly from a pivot pin 3| placed intermediate the ends of the jaw. As shown in Fig. 5, the arm 29 is laterally extended in its edge margin to form a hook defining tooth 3|. The arm 30 is laterally extended in the direction of the tooth 3! to form a rounded protuberance 32, the tooth 3| and protuberance 32 being spaced apart and cooperating to form a notch or recess 33 therebetween.

The two jaws are mounted in back-to-back position with their teeth 3|3| extending outwardly in opposite directions. spring 34 is anchored at its midportion bya pin 35 extending between the adjacent portions of A wing shaped 5 to occupy a position projecting laterally of said U-shaped recessed portion when said arm is in said position normal to said shoulder; a locking member supported by said casing in a position adjacent said recessed portion of said bolt and so as to be movable toward and away from said recessed portion, said locking member having a shouldered portion positioned so as to engage said arm member when it is in said position projecting laterally of said recessed portion, and to thereby lock said rotatable arm in said position normal to said shoulder.

FRANK R. COLLAR.

JACK C. MITCHELL.

References Cited in the file of this patent Number Number UNITED STATES PATENTS

US2668073A 1951-02-27 1951-02-27 Latch mechanism Expired - Lifetime US2668073A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US2668073A US2668073A (en) 1951-02-27 1951-02-27 Latch mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2668073A US2668073A (en) 1951-02-27 1951-02-27 Latch mechanism

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US2668073A true US2668073A (en) 1954-02-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
US2668073A Expired - Lifetime US2668073A (en) 1951-02-27 1951-02-27 Latch mechanism

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107112A (en) * 1960-11-07 1963-10-15 Schlage Lock Co Latch bolt unit
US3492038A (en) * 1967-12-18 1970-01-27 Schlage Lock Co Double-acting door pull lock
US4105234A (en) * 1977-04-29 1978-08-08 Ray Eberhart Latch mechanism
US4239268A (en) * 1978-06-05 1980-12-16 Rider Harlan H Sliding door lock
US4566725A (en) * 1984-01-30 1986-01-28 Almet Hardware Limited Deadlock mechanism
US4902053A (en) * 1987-04-13 1990-02-20 Oy Wartsila Ab Door lock
DE3929041A1 (en) * 1989-09-01 1991-03-07 Aljo Aluminium Bau Jonuscheit Locking mechanism for cupboards and cabinets - has notched latch and vertical separation of parts on insertion of key
US6663147B1 (en) * 1999-09-30 2003-12-16 Alban Giacomo S.P.A. Lock
DE10063327B4 (en) * 2000-12-19 2006-06-01 Assa-Ruko Sicherheitssysteme Gmbh On a door, window or the like anschlagbarer fitting
US20090243306A1 (en) * 2008-03-31 2009-10-01 Chung-Liang Lin Lock for pivotal doors and sliding doors
US7942457B1 (en) * 2007-04-02 2011-05-17 Donald Bell Lever-handled pocket door latching system

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US195270A (en) * 1877-09-18 Improvement in reversible latches
FR694262A (en) * 1930-04-22 1930-12-02 metal plates manufacturing process embossed
US1839519A (en) * 1929-12-27 1932-01-05 Joseph C Wratschko Door lock set
US1966171A (en) * 1925-03-12 1934-07-10 Holtzman John Hand operated lock
US2174958A (en) * 1937-12-02 1939-10-03 Backhouse Headley Townsend Door lock

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US195270A (en) * 1877-09-18 Improvement in reversible latches
US1966171A (en) * 1925-03-12 1934-07-10 Holtzman John Hand operated lock
US1839519A (en) * 1929-12-27 1932-01-05 Joseph C Wratschko Door lock set
FR694262A (en) * 1930-04-22 1930-12-02 metal plates manufacturing process embossed
US2174958A (en) * 1937-12-02 1939-10-03 Backhouse Headley Townsend Door lock

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3107112A (en) * 1960-11-07 1963-10-15 Schlage Lock Co Latch bolt unit
US3492038A (en) * 1967-12-18 1970-01-27 Schlage Lock Co Double-acting door pull lock
US4105234A (en) * 1977-04-29 1978-08-08 Ray Eberhart Latch mechanism
US4239268A (en) * 1978-06-05 1980-12-16 Rider Harlan H Sliding door lock
US4566725A (en) * 1984-01-30 1986-01-28 Almet Hardware Limited Deadlock mechanism
US4902053A (en) * 1987-04-13 1990-02-20 Oy Wartsila Ab Door lock
DE3929041C2 (en) * 1989-09-01 2000-04-06 Aljo Aluminium Bau Jonuscheit closure device
DE3929041A1 (en) * 1989-09-01 1991-03-07 Aljo Aluminium Bau Jonuscheit Locking mechanism for cupboards and cabinets - has notched latch and vertical separation of parts on insertion of key
US6663147B1 (en) * 1999-09-30 2003-12-16 Alban Giacomo S.P.A. Lock
DE10063327B4 (en) * 2000-12-19 2006-06-01 Assa-Ruko Sicherheitssysteme Gmbh On a door, window or the like anschlagbarer fitting
US7942457B1 (en) * 2007-04-02 2011-05-17 Donald Bell Lever-handled pocket door latching system
US20090243306A1 (en) * 2008-03-31 2009-10-01 Chung-Liang Lin Lock for pivotal doors and sliding doors
US7836737B2 (en) * 2008-03-31 2010-11-23 I-Tek Metal Mfg. Co., Ltd. Lock for pivotal doors and sliding doors

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