US2889571A - Hinged door stop - Google Patents

Description

T. MOORE June 9, 1959 HINGED DOOR STOP 7 Filed Aug. 8, 1955 INVENTOR.

HINGED DOOR STOP Tiltord Moore, St. Paul, Minn., assignor to Lawrence Brothers, Inc., Sterling, 111., a corporation of Illinois Application August 8, 1955, Serial No. 526,811

4 Claims. (Cl. 16-82) This invention relates to a door stop, and more particularly to a stop for pivotally hung doors.

It is intended that the invention herein will find great usefulness in connection with toilet doors in hospital rooms and the like. Private rooms in hospitals generally have an adjoining toilet and for purposes of space conservation the doors on the toilets generally open inwardly. It is not uncommon for a patient to enter the toilet room and lock the door, after which a fainting spell or collapse occurs and the patient is unable to get out of the toilet room by his own actions. Even if the door is not locked, there is the possibility that the patient will fall in such a position to oppose opening the door from the outside thereof.

In view of the circumstances set forth above, it is desirable that means be provided for opening the door from the outside thereof. In order to make this possible it is necessary that the door to the toilet be hung on pivotal hinges so that it may be swung either inwardly or outwardly to open the same.

It is anobject of the invention herein to provide a door stop which will normally locate the door in closed position, but which may be retracted to permit opening of the same.

It is a more specific object of the invention herein to provide a hinged door stop that is normally urged into abutting relationship with respect to a door, but which may be manually released to permit opening of the door in a direction opposite to which it was closed.

It is yet another object of the invention herein to provide a door stop that is inexpensive to manufacture.

It is a further object to provide a door stop that is eflicient in operation, and requires no keys or other complicated release mechanisms for operation of the same.

It is yet another object of the invention herein to pro vide a door step that may be installed on a standard door jamb or casing.

These and other objects and advantages of the invention herein will be apparent from the following detailed description and drawing wherein like reference numerals are used to designate similar parts throughout:

Fig. 1 is a perspective view of a door stop assembly incorporating the present invention mounted on a door jamb and showing a door in closed relationship relative to the door jamb and abutting against the door stop;

Fig. 2 is a perspective view with the door stop in retracted position and with a door opening past the retracted door stop;

Fig. 3 is an enlarged cross-sectional view taken along the line 3-3 of Fig. 1;

Fig. 4 is an enlarged sectional view taken along the line 4-4 of Fig. 1;

Fig. 5 is an enlarged vertical sectional view taken along the line 5-5 of Fig. l; and

Fig. 6 is an exploded perspective view showing the parts of the door stop in disassembled relationship.

Referring now more particularly to the drawing, there is shown a door 10 which is pivotally hung by any known atent O 2 means, not shown, and a door stop 12 mounted on a door jamb or casing 14. The door 10 may be of any standard type of construction. The door jamb 14 may also be of standard construction.

The door stop includes two leaves 16 and 18, which are substantially rectangular in shape. The leaves are preferably made of sheet metal, but may be cast if so desired. The leaves are provided with integral knuckles adjacent one of the longitudinal edges thereof, the knuckles of leaf 16 being designated by the numerals 20 and 22. The knuckles of leaf 18 are designated as 24 and 26. The knuckles are arranged in such a manner that they may be interleaved, and a pintle 28 extends through the apertures therein. The pintle includes a cap or head portion 30 and an elongated shaft 32.

The door stop 12 also includes a tubular metal member or sleeve 34 and a coil spring 36. The coil spring fits within the tubular member 34, and has one end 38 thereof adapted to be received in a complementary groove or spline 40 cut in from the aperture or bore in knuckle 22 of leaf 16. The other end of the spring 36 has an angularly bent portion 42 which extends out from the tubular member 34 through a groove 44 cut therein.

As shown in Fig. 5, the tubular member is of such a length as to fit between knuckles 20 and 22 of leaf 16. The external diameter of the tubular member 34 is the same as the outside diameter of the knuckles. The internal diameter of the tubular member corresponds with the internal diameter of the knuckles.

In assembling the door stop prior to installing the same on a door jamb, the knuckles of the two leaves 16 and 18 are first aligned, after which the tubular member 34 with the spring 36 therein is then interposed between knuckles 20 and 22. The end 38 of the spring is inserted into the complementary groove 40 of knuckle 22. The other end 42 of the spring extends out through groove 44 in the tubular member 34 and overlaps the outer surface of leaf 18. The pintle 28 is then inserted through the apertures in the knuckles and through the internal portion of the spring 36 until the head 30 of the pintle rests on top of knuckle 24. A nib or end plug 45 is then inserted, from the bottom, into the aperture of knuckle 26. The plug 45 may either be threaded into the aperture in knuckle 26 or be frictionally forced therein.

It will be apparent that as the result of the anchoring of spring 36 the leaf 18 is constantly urged into abutting relationship with leaf 16.

Referring to leaf 18, the free edge thereof away from the knuckles 24 and 26 is bent outwardly at 46, and then reverse'ly bent at 48. These bends give a substantially U-shaped configuration to the outer end of leaf 18, with a bight 50 of the U providing an abutment member for engaging and locking the door in its closed position. A reversely bent portion 52 extending from the bend 48 serves as a handle or manual gripping means for retracting leaf 18 against the action of spring 36.

The abutment member 50 has provided thereon a plurality of cushion members 54 for sound deadening and preventing marring of the door. The cushion members are of rubber or any other suitable resilient material, and are inserted through apertures 56in the abutment member 50. The cushion members may be of any suitable construction and for purposes of illustration they may include a resilient outer member 58, a central cylindrical stud portion 60 of substantially the same diameter as aperture 56, and a conical end portion 62. By pressing on the resilient outer member 58, the conical portion 62 is forced through the aperture 56 after which it expands to resiliently hold the cushion members 54 in position.

The door stop after having been assembled in the manner heretofore described is then affixed to the door jarnb 14. The door stop is placed at a suitable height above the floor in order to be readily accessible to a person of average height using the same. The leaf 16 is positioned on the door jarnb in such a manner that the knuckles extend out beyond-the edge of the door jamb, and substantially parallel thereto. Screws 6.8 are then inserted through apertures 64 in the leaf orbase plate 1.6 and the door stop is thereby permanently alfixed to the door jamb. The apertures 64 are preferably countersunk as at 66 and flat head screws are preferably used so that the heads thereof, when inserted, will be flush with the surface of leaf 16. If so desired the door jamb i l be cut out to receive leaf 16 so that it will be flush with the surface of the door jamb. It is to be noted that in the embodiment shown the door stop is preferably so positioned that the door will be flush with one edge of the iamb when in its closed position and abutting the cushion members 54.

The door stop may be operated in the following manner. Assuming that a patient has entered a toilet room in which the door 10 normally opens inwardly, that is, opposite to the direction opposed by the door stop, and has become incapacitated while in the toilet room, it then becomes necessary that an emergency opening of the toilet door be accomplished so that a nurse or other atendant may remove the patient from the toilet room. In order to accomplish this the attendant grasps the bandle 52 and pulls it outwardly from the door jamb 14 to swing or retract through an angle suflicient to release the door for movement in a direction normally opposed by the abutment member 50. Since the leaf 18 may be pivoted through an angle of substantially 180 degrees it is clear that the abutment member may be easily retracted to an inoperative position for releasing the door. The attendant then, with his other hand, can grasp a door handle (not shown) and pull the door outwardly into the room. The movement of the door at this point is best illustrated in Fig. 2. Once the door has been opened in the manner outlined the patient may be removed. The movement of leaf 18 outwardly from the door jamb 14 is, of course, opposed. by the spring 36, and the leaf will return to its normal position in abutting relationship with leaf 16 when released.

It will be apparent from the foregoing that the door stop of the present invention is efficient in operation and requires no complicated release mechanisms or keys to operate the same. It is inexpensive to manufacture. Whereas the particular structure herein has been described in detail, it will be apparent that departures may be made from the exact structure shown which will be within the scope and intention of the invention. The invention is to be limited only as set forth in the appended claims.

The invention is hereby claimed as follows:

'1. A retractable door stop for providing means for positively locating a free edge of a pivotally hung door i fully closed p s on o pr sin a Pai of le es each of said leaves having a plurality of knuckles spaced along one edge thereof, said knuckles being arranged in interleaved relation with the bores thereof aligned, a pivot forming pintle engaging in said bores, one of said leaves being adapted to be mounted on a door jamb, the other leaf including an abutment portion adjacent a free end thereof for providing a stop for the door when it is closed, said abutment portion comprising a flange extending substantially perpendicularly from said other leaf and away from said one leaf and facing generally away from said knuckles when the leaves are in abutting relationship, resilient means for urging said leaves into abutting relationship, and means for moving said leaf with said abutment portion thereon to and from a door locating position and a retracted inoperative position beyond the arc of movement of the pivotally hung door.

2. A retractable door stop as set forth in claim 1 wherein said abutment portion is provided with cushion members for sound deadening and to prevent defacing of the door surface.

3. A retractable door stop for providing means for positively locating a free edge of a pivotally hung door in a fully closed position comprising a pair of leaves, pivot means connecting adjacent marginal portions of said leaves, one of said leaves being adapted to be mounted on a door jamb, the other of said leaves presenting a free end thereof for providing a stop for the door when the door is closed and when said leaves are in substantially abutting relationship, and means for normally positioning said leaves in said substantially abutting relationship While permitting said leaf which provides the door stop to be pivoted to a retracted inoperative position beyond the arc of movement of the pivotally hung door, said free end of the leaf providing the stop including a laterally projecting flange engageable with the door when the door is closed and the leaves are in substantially abutting relationship.

4. A retractable door stop, as defined in claim 3, wherein said flange includes handle means for facilitating retraction of the leaf providing the stop to said inoperative position.

References Cited in the file of this patent UNITED STATES PATENTS 822,505 Busch June 5, 1906 1,120,505 Johnson Dec. s, 1914 1,836,539 Kolbuss Dec. 15, 1931 2,417,521 Reeves Mar. 18, 1947 2,712,150 Hodges July -5, 1955

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