US3309126A - Child-safe door catch assembly - Google Patents

Child-safe door catch assembly Download PDF

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Publication number
US3309126A
US3309126A US392795A US39279564A US3309126A US 3309126 A US3309126 A US 3309126A US 392795 A US392795 A US 392795A US 39279564 A US39279564 A US 39279564A US 3309126 A US3309126 A US 3309126A
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Prior art keywords
door
catch
arms
cross member
head
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US392795A
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Clarence E Schuette
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    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C19/00—Other devices specially designed for securing wings, e.g. with suction cups
    • E05C19/18—Portable devices specially adapted for securing wings
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/0894—Spring arm
    • Y10T292/0895—Operating means
    • Y10T292/0902—Rigid
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T292/00—Closure fasteners
    • Y10T292/08—Bolts
    • Y10T292/096—Sliding
    • Y10T292/0969—Spring projected
    • Y10T292/097—Operating means
    • Y10T292/0997—Rigid

Definitions

  • the primary object of the invention is the provision of a practical, efficient, and easily installed assembly of the kind indicated, which is adapted to all presently used forms of doors and door frames, the use of which assembly relieves parents and other guardians of young children of the necessity to maintain a constant watch lest such children escape, by operating the regular door knoboperated latch, and come to harm.
  • Another object of the invention is the provision of a simple, uncomplex, inexpensive, and easily operated assembly of the character indicated above, which is adapted to be easily rendered inoperative, without removing the main catch components from the door and from the door frame.
  • FIGURE 1 is a fragmentary perspective view of a door frame, a hinged door therein, the latter being shown in open position, showing an assembly of the present invention installed;
  • FIGURE 2 is an enlarged fragmentary horizontal section taken on the line 22 of FIGURE 1, showing the catch engaged with the catch pin, the door being in closed position;
  • FIGURE 3 is a view, like FIGURE 2, showing the catch in compressed inoperative position and disengaged from the catch pin;
  • FIGURE 4 is a further enlarged perspective view of the catch
  • FIGURE 5 is a perspective view, on the scale of FIG- URE 4, of the retainer for the spring bolt of the existent door latch;
  • FIGURE 6 is a perspective View, on the same scale, of another form of retainer.
  • a conventional door frame side member 10 is shown, having a face 12 formed with a vertical laterally projecting jamb stop 14, which is spaced from opposite sides of the member It).
  • a vertical laterally projecting jamb stop 14 which is spaced from opposite sides of the member It.
  • the spring bolt 18 of the door 24 is rendered inoperative to engage in the opening of the latch plate 16, by means of a retainer 26.
  • the retainer 26, which is formed of spring sheet metal, or other suitable material, comprises a U-shape having a cross member 28, of substantially the same width as the thickness of the door 24, and straight right-angular arms 30, the latter terminating in short lateral wings 32 which serve as fingerpieces for installing and removing the retainer.
  • the inner surfaces of the arms 30, as shown in FIGURE 5, are roughened or knurled, as indicated at 32, for sufiiciently strong frictional engagement with the opposed surfaces of the door 24, that, when the retainer arms are engaged with these surfaces and the retainer is pushed toward the free edge 34 of the door, the cross member 28 of the retainer will push the spring bolt 18 into the latch 20 and be retained in this inoperative position.
  • the retainer 26 can be easily pulled off to free the spring bolt to operative position, simply by pulling on one or both of the wings 32.
  • FIGURE 6 is shown another form of retainer 26a, which differs from that in FIGURE 5, only in the -covering of adjacent portions of the inner surfaces of the arms 36a, and the outer surfaces of the wings 32a, with tapes 33a, which, in certain cases, provide a better grip on the opposed surfaces of a door and prevent marring thereof.
  • the instant catch assembly further comprises a catch pin 38, which is adapted to be driven into the related part of the door frame face 12, at a distance above the latch plate 16 that cannot be reached by young children, the pin having a projecting head 40.
  • the catch 42 which is mounted on and around the free edge 34 of the door 24, on the same level as the catch pin.
  • the catch 42 which is formed of flat spring metal, or other suitable material stock, comprises an elongated U-shape having a cross member 44, of substantially the thickness of the door 24, and elongated arms 46, adapted to bear against the opposed surfaces 48 and 50 of the door.
  • the cross member 44 is spaced outwardly from the free edge 34 of the door, in order that the cross member 44 have free inherent resilient action, relative to the door edge.
  • the cross member 44 is formed with a central, preferably rectangular opening 52, adapted to receive the catch pin head 40, when the door is swung to closed position, by being flexed, toward the free edge 34 of the door, by initial contact with the catch pin head.
  • the opening 52 reaches the catch pin head 40, the latter enters the opening 42, and the cross member resiles to its original form and the edges of its opening 52 are in lateral holding engagement with the catch pin head, for retaining the door in closed position.
  • the arms 46 of the catch 42 are formed, intermediate their ends, and preferably near their free ends 52, with lateral compressible and resilient loops 56, which, when manually compressed, decrease the effective lengths of the catch arms 46, and thereby move the cross member 44 toward the free edge 34 of the door, and off the head of the catch pin, so as to free the door to be opened.
  • the catch 42 is secured in place on the door, by means of screws 58, passed through openings 60, provided in the portions 62, of the arms, between the loops 56 and the ends of the arms, and threaded into the door.
  • the catch arm 46 facing the door surface 48 is formed between the related loop 56 and the cross member 44, with a longitudinal slot 64, through which a retaining screw 66 is threaded into the door.
  • This arrangement is provided as a means of retaining the catch 42 in a contracted position, obtained by squeezing a loop 56, wherein the cross member 44 is retracted out of catch pin engaging position. When the catch is so retracted, the screw 66 is tightened to hold the position.
  • one of the catch arms is formed with a longitudinal slot space between the cross member and the related compressible loop, and a retaining screw extending through the slot and threaded into the door, said screw being adapted to be tightened to retain the catch arms in contracted condition.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hinges (AREA)

Description

14, 1967 c. E. SCHUETTE 3,399,126
CHILD-SAFE DOOR CATCH ASSEMBLY Filed Aug. 28, 1964 I N VENTOR. C4N 5 sch 05775 United States Patent 3,309,126 CHILD-SAFE DOQR CATCH ASSEMBLY Clarence E. Schuette, 817 S. Lorrnann Circle, Lengwood, Fla. 32750 Filed Aug. 28, 1964, Ser. No. 392,795 2 Claims. (Cl. 292-175) This invention relates to a child-safe door catch assembly, adapted to be installed on a hinged door and its frame, out of reach of small children, the regular knoboperated spring bolt being rendered inoperative.
The primary object of the invention is the provision of a practical, efficient, and easily installed assembly of the kind indicated, which is adapted to all presently used forms of doors and door frames, the use of which assembly relieves parents and other guardians of young children of the necessity to maintain a constant watch lest such children escape, by operating the regular door knoboperated latch, and come to harm.
Another object of the invention is the provision of a simple, uncomplex, inexpensive, and easily operated assembly of the character indicated above, which is adapted to be easily rendered inoperative, without removing the main catch components from the door and from the door frame.
In the drawings:
FIGURE 1 is a fragmentary perspective view of a door frame, a hinged door therein, the latter being shown in open position, showing an assembly of the present invention installed;
FIGURE 2 is an enlarged fragmentary horizontal section taken on the line 22 of FIGURE 1, showing the catch engaged with the catch pin, the door being in closed position;
FIGURE 3 is a view, like FIGURE 2, showing the catch in compressed inoperative position and disengaged from the catch pin;
FIGURE 4 is a further enlarged perspective view of the catch;
FIGURE 5 is a perspective view, on the scale of FIG- URE 4, of the retainer for the spring bolt of the existent door latch; and,
FIGURE 6 is a perspective View, on the same scale, of another form of retainer.
Referring in detail to the drawings, and first to FIG- URES l to 5 thereof, a conventional door frame side member 10 is shown, having a face 12 formed with a vertical laterally projecting jamb stop 14, which is spaced from opposite sides of the member It). At the usual height above the lower end of the side member It), a
'door, the latch being operable by the usual knob 22.
With this arrangement, a small child can easily reach and operate the knob, open the associated door 24, and escape Without notice, unless watched.
In accordance with the present invention, the spring bolt 18 of the door 24 is rendered inoperative to engage in the opening of the latch plate 16, by means of a retainer 26. The retainer 26, which is formed of spring sheet metal, or other suitable material, comprises a U-shape having a cross member 28, of substantially the same width as the thickness of the door 24, and straight right-angular arms 30, the latter terminating in short lateral wings 32 which serve as fingerpieces for installing and removing the retainer. The inner surfaces of the arms 30, as shown in FIGURE 5, are roughened or knurled, as indicated at 32, for sufiiciently strong frictional engagement with the opposed surfaces of the door 24, that, when the retainer arms are engaged with these surfaces and the retainer is pushed toward the free edge 34 of the door, the cross member 28 of the retainer will push the spring bolt 18 into the latch 20 and be retained in this inoperative position. The retainer 26 can be easily pulled off to free the spring bolt to operative position, simply by pulling on one or both of the wings 32.
In FIGURE 6 is shown another form of retainer 26a, which differs from that in FIGURE 5, only in the -covering of adjacent portions of the inner surfaces of the arms 36a, and the outer surfaces of the wings 32a, with tapes 33a, which, in certain cases, provide a better grip on the opposed surfaces of a door and prevent marring thereof.
The instant catch assembly further comprises a catch pin 38, which is adapted to be driven into the related part of the door frame face 12, at a distance above the latch plate 16 that cannot be reached by young children, the pin having a projecting head 40.
Cooperating with the catch pin head 40 is a catch 42, which is mounted on and around the free edge 34 of the door 24, on the same level as the catch pin. The catch 42, which is formed of flat spring metal, or other suitable material stock, comprises an elongated U-shape having a cross member 44, of substantially the thickness of the door 24, and elongated arms 46, adapted to bear against the opposed surfaces 48 and 50 of the door. The cross member 44 is spaced outwardly from the free edge 34 of the door, in order that the cross member 44 have free inherent resilient action, relative to the door edge.
The cross member 44 is formed with a central, preferably rectangular opening 52, adapted to receive the catch pin head 40, when the door is swung to closed position, by being flexed, toward the free edge 34 of the door, by initial contact with the catch pin head. When the opening 52 reaches the catch pin head 40, the latter enters the opening 42, and the cross member resiles to its original form and the edges of its opening 52 are in lateral holding engagement with the catch pin head, for retaining the door in closed position.
The arms 46 of the catch 42 are formed, intermediate their ends, and preferably near their free ends 52, with lateral compressible and resilient loops 56, which, when manually compressed, decrease the effective lengths of the catch arms 46, and thereby move the cross member 44 toward the free edge 34 of the door, and off the head of the catch pin, so as to free the door to be opened.
The catch 42 is secured in place on the door, by means of screws 58, passed through openings 60, provided in the portions 62, of the arms, between the loops 56 and the ends of the arms, and threaded into the door.
The catch arm 46 facing the door surface 48, is formed between the related loop 56 and the cross member 44, with a longitudinal slot 64, through which a retaining screw 66 is threaded into the door. This arrangement is provided as a means of retaining the catch 42 in a contracted position, obtained by squeezing a loop 56, wherein the cross member 44 is retracted out of catch pin engaging position. When the catch is so retracted, the screw 66 is tightened to hold the position.
A slight squeeze on the loop 56, from either side of the door, will release the catch, so that the door may be either pushed or pulled open.
What is claimed is:
1. The combination with a door frame having a jamb face, a door hinged in the frame and having a free edge adapted to confront said jamb face in the closed position of the door, a catch p-in mounted on the jamb face and having a projecting head, a catch mounted on the door in line with the catch pin head, said catch member comprising a resilient U-shape having a cross member lying along and normally spaced outwardly from the free edge of the door and arms engaged with opposed surfaces of the door, said arms having free inner ends, said cross member being formed With a catch pin head receiving opening, said cross member normally being in a plane containing the catch pin head and being adapted to be flexed by initial contact with said head to provide for retentive reception of the head into said opening as the door is closed, means securing the arms of the catch to the related surfaces of the door at the inner ends of the arms, and said arms including compressible and resilient lateral loops intermediate their ends, said loops being adapted to be manually compressed to eifectively contract the arms and move the cross member toward the free edge of the door for disengaging the opening of the cross member from the catch pin head.
2. The combination of claim 1, wherein one of the catch arms is formed with a longitudinal slot space between the cross member and the related compressible loop, and a retaining screw extending through the slot and threaded into the door, said screw being adapted to be tightened to retain the catch arms in contracted condition.
References Cited by the Examiner UNITED STATES PATENTS 493,203 3/1893 Badoni 287-,87
987,271 3/1911 Upton. 1,670,908 5/1928 Smith 292238 X 2,685,473 8/1954 Adcll 16-85 X 2,975,491 3/1961 Paul et al. 2921 X FOREIGN PATENTS 1,196,760 5/1959 France.
12,647 3/1910 Great Britain.
EDWARD C. ALLEN, Primary Examiner.
I. R. MOSES, Assistant Examiner.

Claims (1)

1. THE COMBINATION WITH A DOOR FRAME HAVING A JAMB FACE, A DOOR HINGED IN THE FRAME AND HAVING A FREE EDGE ADAPTED TO CONFRONT SAID JAMB FACE IN THE CLOSED POSITION OF THE DOOR, A CATCH PIN MOUNTED ON THE JAMB FACE AND HAVING A PROJECTING HEAD, A CATCH MOUNTED ON THE DOOR IN LINE WITH THE CATCH PIN HEAD, SAID CATCH MEMBER COMPRISING A RESILIENT U-SHAPE HAVING A CROSS MEMBER LYING ALONG AND NORMALLY SPACED OUTWARDLY FROM THE FREE EDGE OF THE DOOR AND ARMS ENGAGED WITH OPPOSED SURFACES OF THE DOOR, SAID ARMS HAVING FREE INNER ENDS, SAID CROSS MEMBER BEING FORMED WITH A CATCH PIN HEAD RECEIVING OPENING, SAID CROSS MEMBER NORMALLY BEING IN A PLANE CONTAINING THE CATCH PIN HEAD AND BEING ADAPTED TO BE FLEXED BY INITIAL CONTACT WITH SAID HEAD TO PROVIDE FOR RETENTIVE RECEPTION OF THE HEAD INTO SAID OPENING AS THE DOOR IS CLOSED, MEANS SECURING THE ARMS OF THE CATCH TO THE RELATED SURFACES OF THE DOOR AT THE INNER ENDS OF THE ARMS, AND SAID ARMS INCLUDING COMPRESSIBLE AND RESILIENT LATERAL LOOPS INTERMEDIATE THEIR ENDS, SAID LOOPS BEING ADAPTED TO BE MANUALLY COMPRESSED TO EFFECTIVELY CONTRACT THE ARMS AND MOVE THE CROSS MEMBER TOWARD THE FREE EDGE OF THE DOOR FOR DISENGAGING THE OPENING OF THE CROSS MEMBER FROM THE CATCH PIN HEAD.
US392795A 1964-08-28 1964-08-28 Child-safe door catch assembly Expired - Lifetime US3309126A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712816A (en) * 1986-05-12 1987-12-15 Mueller Theodore V Auxiliary door latch for children's safety
US4790579A (en) * 1988-03-01 1988-12-13 Siemens Energy & Automation, Inc. Sliding spring latch
FR2686642A1 (en) * 1992-01-27 1993-07-30 Bailleul Fabrice Device making it possible to hold the doors against the jamb lining so as to obtain safety for children
US20150097382A1 (en) * 2013-10-08 2015-04-09 Christopher J. Blawat Latch Guard Device and Method
US9476222B1 (en) 2013-08-29 2016-10-25 Brian A. Johnson Latch blocker safety strike plate
US10267059B1 (en) 2017-10-18 2019-04-23 Victor Schulz Gard-U door safety system
US20230184014A1 (en) * 2021-12-10 2023-06-15 G-Force Deterrent LLC Door securement device and method
USD1010425S1 (en) * 2021-12-10 2024-01-09 G-Force Deterrent LLC Detachable door securement device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US493203A (en) * 1893-03-07 Massimiliano badoni
GB191012647A (en) * 1910-05-24 1911-01-26 Ernest Richard Royston Improvements in and relating to Stone Cutting.
US987271A (en) * 1910-06-15 1911-03-21 Albert W Upton Attachment for door-latches.
US1670908A (en) * 1927-11-23 1928-05-22 Smith David Barn-door latch
US2685473A (en) * 1953-08-10 1954-08-03 Adell Robert Protective trim molding for vehicle door edges
FR1196760A (en) * 1958-06-11 1959-11-26 Device for preventing the front door of an apartment from closing by itself inadvertently after being opened
US2975491A (en) * 1958-09-18 1961-03-21 Jacobs & Thompson Ltd Frameless storm windows

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US493203A (en) * 1893-03-07 Massimiliano badoni
GB191012647A (en) * 1910-05-24 1911-01-26 Ernest Richard Royston Improvements in and relating to Stone Cutting.
US987271A (en) * 1910-06-15 1911-03-21 Albert W Upton Attachment for door-latches.
US1670908A (en) * 1927-11-23 1928-05-22 Smith David Barn-door latch
US2685473A (en) * 1953-08-10 1954-08-03 Adell Robert Protective trim molding for vehicle door edges
FR1196760A (en) * 1958-06-11 1959-11-26 Device for preventing the front door of an apartment from closing by itself inadvertently after being opened
US2975491A (en) * 1958-09-18 1961-03-21 Jacobs & Thompson Ltd Frameless storm windows

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4712816A (en) * 1986-05-12 1987-12-15 Mueller Theodore V Auxiliary door latch for children's safety
US4790579A (en) * 1988-03-01 1988-12-13 Siemens Energy & Automation, Inc. Sliding spring latch
FR2686642A1 (en) * 1992-01-27 1993-07-30 Bailleul Fabrice Device making it possible to hold the doors against the jamb lining so as to obtain safety for children
US9476222B1 (en) 2013-08-29 2016-10-25 Brian A. Johnson Latch blocker safety strike plate
US20150097382A1 (en) * 2013-10-08 2015-04-09 Christopher J. Blawat Latch Guard Device and Method
US10267059B1 (en) 2017-10-18 2019-04-23 Victor Schulz Gard-U door safety system
US20230184014A1 (en) * 2021-12-10 2023-06-15 G-Force Deterrent LLC Door securement device and method
USD1010425S1 (en) * 2021-12-10 2024-01-09 G-Force Deterrent LLC Detachable door securement device

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