US3347581A - Concealed door latch - Google Patents

Concealed door latch Download PDF

Info

Publication number
US3347581A
US3347581A US463691A US46369165A US3347581A US 3347581 A US3347581 A US 3347581A US 463691 A US463691 A US 463691A US 46369165 A US46369165 A US 46369165A US 3347581 A US3347581 A US 3347581A
Authority
US
United States
Prior art keywords
door
latch
latch bar
plates
bar
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
US463691A
Inventor
Daniel G Hann
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.)
GEN ERIE CORP
Original Assignee
GEN ERIE CORP
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
Application filed by GEN ERIE CORP filed Critical GEN ERIE CORP
Priority to US463691A priority Critical patent/US3347581A/en
Application granted granted Critical
Publication of US3347581A publication Critical patent/US3347581A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05CBOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C1/00Fastening devices with bolts moving rectilinearly
    • E05C1/02Fastening devices with bolts moving rectilinearly without latching action
    • E05C1/04Fastening devices with bolts moving rectilinearly without latching action with operating handle or equivalent member rigid with the bolt
    • 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
    • Y10T292/1024Friction 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
    • Y10T292/62Bolt casings

Description

7 Oct. 17, 1967 D. e. HANN CONCEALED DOOR LATCH 2 Sheets-Sheet 1 Filed June 14, 1965 I N V EN TOR. DAM/E2 GPAF/OA/ f/44/A/ Get. 17, 1967 D. G. HANN CONCEALED DOOR LATCH 2 Sheets-Sheet 2 Filed June 14, 1965 IN VEN TOR.

0/4/1042 GPA/ 70 //4/\/A/ United States Patent 3,347,581 CONCEALED DOOR LATCH Daniel G. Harm, Lake City, Pa., assignor to General-Erie Corporation Filed June 14, 1965, Ser. No. 463,691 Claims. (Cl. 292-147) ABSTRACT OF THE DISCLOSURE This invention relates generally to latches for doors and is particularly concerned with a latch which is concealed within a metal door and is operable from only one side of the door.

Background of the invention Latches of the sliding bolt or bar type are commonly mounted entirely on one side of a door but they are unsightly, have projections on which clothing may catch and Efforts have been made to provide latches which avoid those disadvantages by positioning the sliding bolt or bar within a door but such devices have not been entirely satisfactory for various reasons including the expense of mounting and dismounting them for adjustment or repair and the susceptibility of such latches to being tampered with from the outside of the door.

Summary The present invention aims to provide a sliding bar latch which can be readily and inexpensively mounted within a metal door, is not unsightly, does not have 0bjectionable protruding parts, is readily mounted or dismounted and is substantially tamper proof.

Brief description of the drawings The present invention will be better understood by those skilled in the art from the following specification and the accompanying drawings, in which:

FIG. 1 is a perspective view on a reduced scale of a metal door equipped with a preferred form of the present invention;

FIG. 2 is an exploded perspective view of the door and of FIG. 1 with the latch bar in latching position;

FIG. 3 is a vertical, transverse, sectional view of the latch of FIG. 1 in position in the door;

FIG. 4 is an exploded perspective view of the parts of the latch of FIGS. 1 to 3;

FIG. 5 is an exploded perspective view of a modified form of the apparatus embodying the present invention; and,

FIG. 6 is a transverse, sectional view, similar to FIG. 3, but showing the latch and door of FIG. 5.

Description of the preferred embodiments In the embodiment of the present invention shown in FIGS. 1 to 3, the sheet metal sides of the door are indicated at 1. These sides have opposed indentations 3, and transverse openings 5 through the middle of these indentations.

A latch body 7 (see also FIG. 4) consisting of two similar parts is positioned within the door. The remote sides of the latch body parts are provided with depressions 9 which receive the indentations 3 of the sheet metal sides 1. The opposed faces of the latch body parts are provided with dowel pins 11 and dowel pin holes 11a by means of which the parts of the latch body are maintained in predetermined position. The opposed faces of the latch body parts are cut away to provide rectangular spaces indicated at 13 which extend to the edge of the door, and an elongated hole 15 which extends transversely therethrough and is aligned with the openings 5 in depressions 3. An elongated latch bar 17, FIG. 4, is slidably mounted in space 13 and 3,347,581 Patented Oct. 17, 1967 may be moved to project beyond the edge of the door to engage a striker plate and thus latch the door. The latch bar may be urged against one side of space 13, as by resilient, means, for example a leaf spring 19 which engages the body and the bar. The latch bar has an aperture 21 extending therethrough and aligned with hole 15.

The means for moving the latch bar endwise comprises plates 23 and 25 which have marginal portions movably disposed in the indentations 3 in the sides of the door. Plate 23 has a hollow projection 27 which extends into and substantially fills aperture 21 in the latch bar, and has an actuating handle 29 projecting in the opposite direction. Plate 25 has a projection 31 extending into the hollow projection 27 of plate 23. Means is provided for locking the plates in assembled position with suflicient clearance between 25 and 1 so as not to scratch the door face, as seen in FIG. 3. Any suitable means may be used for this purpose but one such means is the external tooth lock Washer 33 which is fixed to the end of projection 31 and has teeth which engage the inner surface of projection 27. Since the hole 15 in the latch body is larger than projection 27, plates 23 and 25 and bar 17 may be moved relative to the latch body and thus the bar may be moved into and out of door latched position.

In the modification shown in FIGS. 5 and 6, the door is shown as having several parts like those shown in FIGS. 1 through 4 including the sheet metal sides 1, the two-part latch body 7 with its space 13 for the latch bar and a hole 15 extending through the body for a latch bar actuator. In this modification one plate 35 has an exposed actuating handle 37 and a projection 39 extending through the latch bar 41. The second plate 45 is in the form of a fiat washer which engages the outer surface of the adjacent latch body 7, a spring washer 47 bearing against washer 45 and a screw 49 which extends through plate 45 and Washer 47 and into projection 39 of plate 35, thereby serving to hold the plates in assembled position with the door and with the latch bar. An escutcheon plate 51 encloses depression 3 on the outer side of the door, has marginal ribs seating on the sheet in the depression and is retained in place by spring clips such as is shown at 53. This plate may be provided with a slot 54 which can then be used in an emergency to unlock the door from the outside. A pin may be inserted in slot 54 into engagement with the head of screw 49 and then moved laterally to cause the bar 41 to be retracted from contact with a striker plate.

Having thus described this invention in such full, clear, concise and exact terms as to enable any person skilled in the art, to which it pertains to make and use the same, and having set forth the best mode contemplated of carrying out this invention, I state that the subject matter which I regard as being my invention is particularly pointed out and distinctly claimed in what is claimed, it being understood that equivalents or modifications of, or substitutions for, parts of the above specifically described embodiment of the invention may be made without departing from the scope of the invention as set forth in what is claimed.

What is claimed is:

1. A latch for a door comprising:

(a) a two-part latch body to be fixed in position between the sides of a door and having depressions in its remote sides to receive indentations of the sheet metal sides of the door, said body parts being connected together against relative parallel movement, the body parts having a space therebetween for a latch bar and holes extending therethrough for a latch bar actuator,

(b) a latch bar slidably movable endwise in said space and having an aperture aligned with said holes,

(c) means for moving said latch bar endwise into and out of door locking positions, said means including plates disposed in and engaging said indentations in 3 4 the metal sides-of the door, one of said plates having 5. The combination of elements set forth in claim 4 a hollow projection extending into and substantially in which said cover is provided with a slot for use in slidfilling the aperture in said latch bar, one of said ing the latch bar into unlocked position for emergency plates having an outwardly projecting bar actuating unlocking of the door. handle, and 5 i (d) means in said hollow projection to lock said plates Reffl'emes Cited n assembled p9 UNITED STATES PATENTS 2. The combination of elements set forth in cla1m 1 1,830,415 11/1931 Wittanberg 292 76 1n WhICh resilient means is disposed in said space In said body and engaging said latch bar and urg ng it against the 10/1949 Friend 292*337 body r 10 2,876,873 3/1959 Benham 292-337 X 3. The combination of elements set forth in claim 1 in 3O95225 6/1963 Domslc et a1 292169 which one of said plates has a projection extending into FOREIGN PATENTS Said hollow pwiection- 850,474 9/1952 Germany.

4. The combination of elements set forth in claim 1 15 in which a cover is seated in and closes one of said inden- MARVIN A. CHAMPION, Primary Examiner. tations and includes spring means engageable with the adjacent sheet metal side of the door to retain the cover BOBBY Examiner in place. J. R. MOSES,,Assistant Examiner.

Claims (1)

1. A LATCH FOR A DOOR COMPRISING: (A) A TWO-PART LATCH BODY TO BE FIXED IN POSITION BETWEEN THE SIDES OF A DOOR AND HAVING DEPRESSIONS IN ITS REMOTE SIDES TO RECEIVE INDENTATIONS OF THE SHEET METAL SIDES OF THE DOOR, SAID BODY PARTS BEING CONNECTED TOGETHER AGAINST RELATIVE PARALLEL MOVEMENT, THE BODY PARTS HAVING A SPACE THEREBETWEEN FOR A LATCH BAR AND HOLES EXTENDING THERETHROUGH FOR A LATCH BAR ACTUATOR, (B) A LATCH BAR SLIDABLY MOVABLE ENDWISE IN SAID SPACE AND HAVING AN APERTURE ALIGNED WITH SAID HOLES, (C) MEANS FOR MOVING SAID LATCH BAR ENDWISE INTO AND OUT OF DOOR LOCKING POSITIONS, SAID MEANS INCLUDING PLATES DISPOSED IN AND ENGAGING SAID INDENTATIONS IN THE METAL SIDES OF THE DOOR, ONE OF SAID PLATES HAVING A HOLLOW PROJECTION EXTENDING INTO AND SUBSTANTIALLY FILLING THE APERTURE IN SAID LATCH BAR, ONE OF SAID PLATES HAVING AN OUTWARDLY PROJECTING BAR ACTUATING HANDLE, AND (D) MEANS IN SAID HOLLOW PROJECTION TO LOOK SAID PLATES IN ASSEMBLED POSITION.
US463691A 1965-06-14 1965-06-14 Concealed door latch Expired - Lifetime US3347581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US463691A US3347581A (en) 1965-06-14 1965-06-14 Concealed door latch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US463691A US3347581A (en) 1965-06-14 1965-06-14 Concealed door latch

Publications (1)

Publication Number Publication Date
US3347581A true US3347581A (en) 1967-10-17

Family

ID=23840977

Family Applications (1)

Application Number Title Priority Date Filing Date
US463691A Expired - Lifetime US3347581A (en) 1965-06-14 1965-06-14 Concealed door latch

Country Status (1)

Country Link
US (1) US3347581A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746152A (en) * 1987-08-27 1988-05-24 Willcox Robert L Door lock
US4818000A (en) * 1987-12-09 1989-04-04 The Stanley Works Decorative surface bolt
US4883294A (en) * 1988-05-16 1989-11-28 Goodspeed Byron Lester Tamper-proof locking device
US5603184A (en) * 1994-06-17 1997-02-18 Sheila R. Campbell Sliding door latch having sanitary hook
EP1650383A2 (en) * 2004-10-19 2006-04-26 Airbus Deutschland GmbH Locking device
US20090315341A1 (en) * 2008-06-23 2009-12-24 Willcox Robert L Door lock
EP2540938A1 (en) * 2011-06-27 2013-01-02 SACS GmbH Door lock
US8579338B1 (en) * 2010-07-19 2013-11-12 Kirti Shah Slide bolt lock
US20140117680A1 (en) * 2012-03-21 2014-05-01 Frank Herman Buzz, III Sliding glass door safety latch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1830415A (en) * 1930-03-03 1931-11-03 Northern Engraving Co Fastening device for caps and the like
US2485042A (en) * 1945-05-08 1949-10-18 Carl F Friend Bolt casing
DE850474C (en) * 1950-11-30 1952-09-25 Siemens Ag TOUCH for fixing screws spannungfuehrender parts of electrical appliances
US2876873A (en) * 1957-11-15 1959-03-10 Sanymetal Products Co Inc Door structure and latching assembly
US3095225A (en) * 1962-01-29 1963-06-25 Sanymetal Products Company Inc Automatic door locking assemblies

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1830415A (en) * 1930-03-03 1931-11-03 Northern Engraving Co Fastening device for caps and the like
US2485042A (en) * 1945-05-08 1949-10-18 Carl F Friend Bolt casing
DE850474C (en) * 1950-11-30 1952-09-25 Siemens Ag TOUCH for fixing screws spannungfuehrender parts of electrical appliances
US2876873A (en) * 1957-11-15 1959-03-10 Sanymetal Products Co Inc Door structure and latching assembly
US3095225A (en) * 1962-01-29 1963-06-25 Sanymetal Products Company Inc Automatic door locking assemblies

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4746152A (en) * 1987-08-27 1988-05-24 Willcox Robert L Door lock
US4818000A (en) * 1987-12-09 1989-04-04 The Stanley Works Decorative surface bolt
US4883294A (en) * 1988-05-16 1989-11-28 Goodspeed Byron Lester Tamper-proof locking device
US5603184A (en) * 1994-06-17 1997-02-18 Sheila R. Campbell Sliding door latch having sanitary hook
EP1650383A2 (en) * 2004-10-19 2006-04-26 Airbus Deutschland GmbH Locking device
EP1650383A3 (en) * 2004-10-19 2007-05-09 Airbus Deutschland GmbH Locking device
US7377558B2 (en) 2004-10-19 2008-05-27 Airbus Deutschland Gmbh Locking device
US20090315341A1 (en) * 2008-06-23 2009-12-24 Willcox Robert L Door lock
US8579338B1 (en) * 2010-07-19 2013-11-12 Kirti Shah Slide bolt lock
EP2540938A1 (en) * 2011-06-27 2013-01-02 SACS GmbH Door lock
US20140117680A1 (en) * 2012-03-21 2014-05-01 Frank Herman Buzz, III Sliding glass door safety latch
US9091103B2 (en) * 2012-03-21 2015-07-28 Frank Herman Buzz, III Sliding glass door safety latch

Similar Documents

Publication Publication Date Title
US3556573A (en) Astragal mounted flush bolt
US3040555A (en) Sliding door latch
US6871451B2 (en) Multipoint lock assembly
US3596954A (en) Universal sliding door handle and latch assembly
CA2015445C (en) Lock device for vehicle
US3677591A (en) Emergency lock release
US3290081A (en) Door locking guards
US2794663A (en) Combination latch and dead bolt
US5219196A (en) Locks
US20020053227A1 (en) Lock construction having an electrically activated clutch mechanism and a transmission mechanism
KR890003023B1 (en) Lockset assembly
US3691799A (en) Latch assembly
US1090305A (en) Sliding-door lock.
US2801869A (en) Latching mechanism
GB1502551A (en) Noiseless latch for particular use on vehicle doors
US2924475A (en) Sliding door latch with dead lock
US3378289A (en) Hood and deck latch
US2759349A (en) Handcuffs
US2851871A (en) Door latch
US1789775A (en) Lock
US2169692A (en) Door lock
US3667793A (en) Wedge-slide latch
US4399672A (en) Auxiliary security lock assembly for a door
US3122388A (en) Electric strike
US4073518A (en) Electrically and manually actuatable door locking structure