US2114455A - Door closing device - Google Patents

Description

April 19, 1938. G. PIPIA DOOR CLOSING DEVICE Filed March 23, 1957 jv be Pzjmlw m tior2zey Irwan $02 k mm MUN Patented Apr. 19, 1938 UNITED STATES DOOR CLOSING DEVICE Giuseppe Pipia, Woodside, N. Y., assignor to Cerami Self-Closing Device Corporation, New

York, N. Y.

Application March 23, 1937, Serial No. 132,545

9 Claims.

This invention relates to a door closing device. More particularly, it relates to spring hinges for insertion in swinging doors and door frames for normally retaining the doors in closed position and for normally closing the same when open. The invention furthermore relates to the general type of hinges shown and described in the applications of Giuseppe Cerami dated July 5, 1935, and January 16, 1936 and bearing serial numbers, 29,985, and 59,465, respectively.

One of the objects of the present invention is to provide a novel locking device as an improvement on the inventions disclosed in the above cited, filed applications by Giuseppe Cerami.

Another object of the present invention is to provide a simply constructed, effective and operable device adapted for operatively closing doors and other swinging structure parts to be normally retained in closed position.

Still another important object of my invention is to provide a device which can be automatically machined at a relatively low cost of production and easily assembled and mounted in the doors of the type commonly used.

One further and more specific object of my invention is to provide novel combined, cooperative means for effectively retaining a door or other swing structural part in adjustable open position.

A further object of my invention is to provide a compact door closing device which can be adjustable to effectively operate the usual type of door.

With the above and other objects in view, the invention in its preferred form, generally includes a novel combination of cooperative parts and details of construction hereinafter fully described and illustrated in the accompanying drawing.

The accompanying drawing shows a preferred embodiment of my invention in which like characters of reference relate to like parts thruout.

Fig. 1 is a sectional elevation of the embodiment hereinafter described.

Fig. 2 is a vertical section showing the device in open operative position, and

Fig. 3 is a section taken in the direction of arrows on line 33 of Fig. 1.

In the preferred embodiment of my invention as shown in the accompanying drawing, a face or front plate I0 is provided with a plurality of spaced, aligned openings II and I2, respectively.

Extending from the rear of the face plate are top and bottom parallel walls l3 and I4 respectively, and a side wall 15, all integral with the face plate. Said walls and face plate form a rectangular casing with one side and the end open, while the face plate is provided with a partly restricted preferably rectangular opening I6.

The side wall 15 of the casing is further provided with spaced lateral extensions I! and I8 forming longitudinal open compartments or bores 19 and 20, respectively with the top and. bottom walls i3 and I4. It is to be noted that the extensions are parallel with the top and bottom walls and are of the same Width as the wall. Lateral extensions l1 and I8, furthermore, have a partly restricted section 2! and 22 respectively, disposed adjacent the rear of the face plate It) and in which are horizontally fixed pins 23 and 24, respectively.

Intermediate theextensions I7 and I 8 is an open compartment 25 in which a hollow plunger 26 is slidable. Said plunger has a forward reduced end portion 27 adapted to pass thru central rectangular opening l6 of face plate l0. Said reduced end portion is furthermore, provided with a bore 28 into which fits a pin 29 connecting the same with spaced lugs 30 and 3! of a door plate 32. It is to be noted, that said lugs are preferably integral with the door plate 32 and are adapted to fit above and below the restricted end portion 27 and form a pivotal connection therewith. The upper lug 30 is grooved at 33 for accommodating a pivotal pin 34, when the door plate is at right angles to the face plate. Said pin is pivotally-mounted in the plunger by means of a cross member 35 and is automatically brought into engaging position with the groove of the door plate lug by means of a tensioned spring member 36, as shown in Fig. 2 of the drawing.

Said face plate and door plate when in use, normally would be in a flush face to face position as shown in Fig. l and are normally retained in such position by means of the cooperation of parts hereinafter described.

Pivoted to pins 23 and 24 in restricted sections 2| and 22 are leverage arms 37 and 38, respectively, Whose rear terminal longitudinal portions each extend into compartment 25 and have one edge slidably abutting against roller members 39 and 40 respectively. It is to be noted that said arms are of the same construction and that while in contact with roller members 39 and 40 they cross each other as shown in Figs. 1 and 2 of the drawing. Said rollers are disposed at the middle of the terminal portion of the plunger 25 and are held in position by means of a cross pin 4| extending thru the parallel walls 42 and 43 of the plunger. The forward ends of the leverage arms 37 and 38 are provided with claws 44 and 45, respectively which form an abutment against respective cams 46 and 4'1. Said cams are slidably mounted on screw rods 48 and 49. It is to be noted that the rods respectively extend from the openings H and I2 thru longitudinal bores I9 and 20.

Each of the rods is furthermore provided with a coaxial tensioned spring member 50 and 5| respectively, one end of which engages the cam members while the other end abuts against respective screw nuts 52 and 53 mounted on the terminal portions of the screw rods. The side edges of said nuts are adapted to form a contact with wall l5 to permit their adjustment on the screw rods. It is to be noted that the tension of springs and 5! may be adjusted by regulating the distance of the nuts 52 and 53 on the" In this manner the necessary or.

screw rods. desired pressure may be exerted by the springs against claws 44 and 45, to obtain the best results and facilitate movement of the door plate against front plate l0. 7

Door plate 32 being of less width than front plate In is provided at its central portion with a pair of spaced horizontal roller members 54 and 55 adapted to form a rolling contact with the front plate when there is angular relative movement of the plates. Said roller members are mounted in a lug or lateral extension 56 integral with the door plate 32 and retained therein by means of individual pins 51 and 58 for the respective roller members 54 and 55. It is to be noted that door plate 32 can be swung thru 180 with respect to the plunger and can be easily fixed onto a door, while the casing with the plunger is mounted in a door frame, not shown.

In operation of the embodiment, when a door carrying the door plate 32 is opened, the plunger 26 will be pulled out. The leverage arms 3'! and 38 are actuated and roll along members 39 and 40 while the claw ends exert pressure against the springs 50 and 5| by way of cams 44 and 45 and compress the same on rods 48 and 49, while the other ends slide against rollers 39 and 49. When the door is released the springs cause the levers to resume their normal position as shown in Fig. l and draw in the plunger to close the door.

From the foregoing description taken in connection with the accompanying drawing it will be noted that my invention possesses many advantages not heretofore found in devices of the prior art. According to my invention, the device may be mounted in a. frame with a door constructed to swingthrough 180. The device can be easily installed in a door frame and attached to a door. Furthermore, the tension of the spring compression members may be easily varied to suit the different types of doors now on the market.

The parts of the preferred form as described herein are easy to manufacture and assemble. A door having the embodiment as shown and described herein can be easily swung open and retained in locked position.

While one preferred form of my invention has been disclosed and shown, it is to be noted that modifications as to arrangement and operation of parts, use of materials and their construction may be made without departing from the spirit and scope of the claims herein.

I claim:

1. A door closing device, comprising an open casing, spaced parallel compression members slidable in the casing, a reciprocable member intermediate the compression members, a plate member in connection with the reciprocable member, and coacting means pivoted in the casing adapted to actuate the compression members upon movement of the reciprocable member.

2. An automatically closing hinge device, comprising a casing, a plurality of spaced compression members in the casing, a reciprocable plunger intermediate the compression members, slidable in said casing, a pair of leverage members pivotally mounted in the casing and extending into the plunger, one end of the members forming a contact with the respective compression members, and a door plate forming a hinged connection with the plunger. Y

3. A door closing device, comprising an open casing for a door frame, a plurality of spaced retention members extending thru the casing, a compression member for each of the retention members, a reciprocable plunger intermediate the compression members, a door plate abutting one end of the casing hingedly connected with the plunger, a pair of leverage members pivoted adjacent one end to the casing and abutting the compression members, a pair of roller members coaxially mounted in the plunger for frictionally engaging the other end of the leverage members, whereby upon movement of the plunger the leverage members are actuated by the compression members to retain the door plate in abutting position.

4. A door closing device according to claim 3, in which one end of each compression member is provided with a cam member slidable along the retention members and adapted to abut against one end of the leverage arms.

5. A door closing device according to claim 3, in which the plunger has a. restricted terminal portion adapted to move outwardly of the casing when the door plate is actuated angularly of the abutting face of the casing.

6. A door closing device according to claim 3, in which the plunger is provided with a tensioned, depressing member for engaging the door plate when the latter is disposed at of the casing and retaining the same in such position.

-7. A door closing device comprising an open casing, a plunger slidable in and out of said casing, a compression member on either side of said plunger, leverage members pivoted to the casing havingone end adapted to actuate the compression members, means mounted in the plunger forming a rotary contact with the other end of the leverage members, and a door plate hingedly connected to the plunger adapted to draw the latter from the casing. I

8. A door closing device, comprising an open casing for insertion in a door frame, a plunger slidable in and out of said casing, a spring member-on each side of said plunger, means pivoted to the casing adapted to compress the spring member on each side of the plunger when the plunger is drawn out of the casing, rotatable means pivoted to the plunger for guiding said means when the plunger is retracted into the casing, and a door plate member hingedly connected to the plunger adapted to be drawn-into flush position against the adjacent edge of the casing by the actu'ation of the spring members.

9. An automatic door closing device, comprising a casing adapted to fit in a door frame, a pair of spaced shaft members, a compression member for each shaftmember having one end provided with a contacting cam, a plunger reciprocable in and out of the casing, a pair of diagonally opposed leverage members pivoted adjacent one end to the casing forming a contact with the cams, and having their other ends ektending into the plunger, for normally forcing the same into the casing, and a door plate hingedly connected to the plunger adapted upon actuation of the door to pull out the plunger against the action of the compression members.

GIUSEPPE PIPIA.

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