US2769198A - Hinge - Google Patents

Description

NOV. 6, 1956 R, E FOLTZ 2,769,198

' HINGE Filed rune 24. 1952 I .kim

IN V EN TOR.

United States Patent l HINGE Robert E. Foltz, Sterling, Ill., assignor to Lawrence Bros., Inc., Sterling, Ill., a corporation of Illinois Application June 24, 1952, Serial No. 295,227

5 Claims. (Cl. 16-169) This invention relates to hinges and is more particularly concerned with improvements in the type of hinge having a pair of leaves with aligned knuckles and a pin engaging in the knuckles.

In hinges of the type described the connecting pin has a tendency to work up r rise with repeated operation of the hinge with the result that the effective bearing engagement between the pin and the knuckles is reduced, and the portion of the pin extending above the hinge presents an unsightly appearance.l

Various arrangements have been suggested for preventing the pin from rising while at the same time permitting it to be readily removed when desired. Most of these arrangementshave inherent disadvantages in that they either increase the cost of manufacture of the hinge too greatly or they are of such a character that they do not work satisfactorily, frequently due to the failure of the carpenter or installer to properly assemble the pin in the knuckle.

It is a general object of the present invention to provide an improved hinge and pintle construction wherein the pintle is retained scurely in non-rising relation in the aligned bores of the knuckles by a relatively simple re' taining means which does not unduly increase the cost of manufacturing the hinge. l

It is a more specific object of the invention to provide a hinge of the type described in which the pintle is provided adjacent its inner end with Va peripheral groove and the end knuckle isprovided with a spring retaining element having an end portion engageable in the pintle groove, the retaining element being held in proper position inthe end knuckle by an ornamental tip@ It is a still more Yspecific object of the invention to provide a` hinge comprising a pair of leaves having knuckles yextending along adjacent' edges with the knuckles having aligned bores and a removable pin engaging in the aligned bores, the pin having a peripheral groove adjacent the inner end and the end knuckle having a recess in the bore thereof in which there is positioned a spring retaining member having a shoulder formation on the inner end releasably engaging in the groove of the pin and which is held in the recess by the pin portion of an ornamental tip which extends into the bore of the knuckle.

These and other objects of the invention will be apparent from a consideration of the hinge construction which is shown by way of illustration in the accompanying drawings, wherein:

Fig. 1 is a plan view of a hinge embodying the principal features of the invention with the knuckle portions thereof being shown in section;

Fig. 2 is an exploded view of the hinge pintle and its retaining mechanism;

Fig. 3 is an enlarged sectional detail view of the end knuckle in which the retaining mechanism is provided;

Fig. 4 is a perspective view of the pin retaining spring element, to an enlarged scale; and

Fig. 5 is a View similar to Fig. 3 showing a modified form of the device.

ICC

In the hinge construction which is shown in Figs. 1-4, and which embodies the principal features of the invention, two hinge leaves or plate members 10 and 11 are provided which are generally rectangular and which are preferably formed of steel, bronze, aluminum or similar metal. The leaves 10 and 11 have integral knuckle forming elements spaced along adjacent edges which have their bores in aligned relation when the two plates are assembled to form the hinge. In the illustrated form of the hinge the one leaf 10 is provided with two knuckle forming elements 12 and 13 while the other leaf 11 is provided with three knuckle forming elements 14, 15 and 16.

The knuckle forming elements 12 and 13 are provided with bushings 17, preferably of self-lubricating metal, which have an internal diameter sufficient to receive in rotatable relation a connecting pin or pintle 18. The knuckle forming- elements 12 and 13 are each recessed at the outer end and receive thrust bearings 19 in the recesses provided therein.

The intermediate or central knuckle forming element 15 on the hinge 11is provided with a self-lubricating bushing 20. The top and bottom end knuckle forming elements 14 and 16 are also provided with similar bushings 21 and 22. The bushing members 20, 21 and 22 are all of the proper internal diameter to accommodate in rotable relation therein the hinge pintle 18. The bushings 17, 20, 21 and 22 form with the respective knuckle elements 12, 13, 14, 15and 16 two part or two section knuckles 12', 13', 14', 15' and 16.

The hinge pintle 18 is provided on its outer end with l a decorative tip 23 and is of sufficient length to have the inner end terminate in the bushing 22 of the bottom end knuckle 16. The pintle 18 is provided adjacent its inner end with a relatively shallow groove 24.

The bottom end bushing 22 is provided with an axially extending recess 25 f in the inner wall which is adapted to receive a pin retaining member 26. The pin retaining member 26 is formed of flat spring material and has a relatively widebase portion27 with aninwardly extending portion 28 of reduced width which terminates in a reversely bent end forming a shoulder or ridge 29 extending radially inwardly of-the inner wall of the bushing 22 when the member 26 is positioned in the recess 25. The retaining member 26 is curved in the lateral direction as shown in Fig. 4, with the same degree of curvature asy the inner wallof the bushing 22, so that it lits snugly in the recess 25. It is held in the recess 25'by the shank portion or pin section 30 of an` ornamental tip 31 which is of the'proper diameter to tpclosely within the bore of the bushing 22 and to be frictionally retained therein. The shank or pin portion 30 of the tip 31 extends into the bushing 22 beyond the wide portion 27 of the member 26 but terminates short of the inner end of the pintle 18 and the ridge formation 29 on the retaining member 26, and thus retains the member 26 in the recess 25 upon assembly of the same with the end knuckle 16. The hinge pin or pintle 18 is of course held in nonrising position by reason of the resilient engagement of the radially inwardly projecting shoulder 29 of the spring retaining member 26 in the groove 24 in the pintle 18.

A modified form of the invention is illustrated in Fig. 5. ln this form the hinge leaves 40 and 41 are provided with the aligned knuckles in the same manner as in Fig. 1 with the bushings in the knuckles being omitted. The end knuckle 42 is provided with the recess 43 for receiving a pin retaining member 44 of the same character as illustrated in Fig. 4. The retaining member 44 is held in the recess 43 in the knuckle 42 by the threaded shank or pin portion 45 of an ornamental tip 46 which is in threaded engagement in the knuckle 42. The connecting pintle 47 is provided with a groove 48 adjacent the end for receiving the ridge or shoulder 49 on the end portion of the spring retaining member 44.

While a particular form of pin retaining member is shown and described it will be appreciated that this member may take a somewhat different shapewith a corresponding change in the shape of the recess provided in the end knuckle for receiving the same. It may be any configuration so long as it is provided with an inwardly extending resilient portion having a shoulder for engagement in a suitable recess in the hinge pintle.

While specific details of construction and particular materials having been referred to in describing the illustrated form of the device it will be appreciated that variations in structure and materials are contemplated within the spirit of the invention.

I claim:

1. In a hinge, a pair of hinge leaves formed of sheet material, each of said leaves having a plurality of knuckle formations along one edge thereof, said knuckle formations being arranged in interleaved relation and having aligned bore formations, a pin received in said bore formations, said pin terminating at its inner end within the bore formation of the end knuckle formation and having an outwardly opening peripheral groove adjacent the inner end thereof, said end knuckle formation having an axially extending internal recess in the side wall thereof which opens into the bore and extends to the outer end thereof and a pin retaining spring plate element positioned in said recess, said plate element having a relatively narrow inner end portion which is reversely bent to provide a ridge extending radially inwardly thereof and receivable in the groove in said pin, and a tip member having a pintle forming shank portion extending within the bore formation in said end knuckle formation and overlying the outer portions of said recess and the spring plate element positioned therein whereby to hold said pin retaining spring plate element in position in said recess.

2. In a hinge as recited in claim l, said tip member being secured in screw threaded relation with said end knuckle formation.

3. In a hinge, a pair of hinge leaves, each of said leaves having a plurality of integral knuckles extending along an edge thereof, said knuckles being arranged in interleaved relation and having aligned bore formations, a pin positioned within said bore formations and having at its inner end a peripheral groove, one of said knuckles having an internal wall formation provided with an inwardly opening recess therein and a pin retaining member positioned in said recess, said pin retaining member having a portion provided with a relatively narrow ridge formation extending inwardly into the bore formation of the knuckle and resiliently engaging in said groove,

and a tip member having a pin portion extending within the bore formation of said knuckle and overlying portions of said recess to lock therein said pin retaining member.

4. In a hinge, a pair of hinge leaves formed of sheet material, each of said leaves having a plurality of spaced knuckles extending from one edge thereof, said knuckles being arranged in interleaved relation with the bores thereof aligned, a pin positioned in said bores, said pin having a head at one end and terminating at its other end in the bore of a knuckle adjacent the end of the hinge, said pin having a peripheral groove adjacent said other end thereof, said last mentioned knuckle having an axially extending recess in the side wall thereof opening inwardly into the bore, said recess having a relatively narrow inner portion and a wider outer portion, a pin retaining element seated in said recess, said retaining element having a relatively narrow inner end portion provided with a radially projecting ridge formation resiliently engaging in the groove in said pin and a wider portion seated in the outer portion of said recess, and a tip member secured in said last mentioned knuckle, said tip member having a pintle forming shank portion extending into the bore thereof a sufficient distance to overlie the outer portion of said retaining element whereby to hold said pin retaining element in position in said recess.

5. In a hinge, a pair of hinge leaves each having a plurality of integral knuckles extending along an edge thereof, self-lubricating bushings in said knuckles, said knuckles being arranged in interleaved relation with the bushings therein having aligned bores, a headed pin engaging in said bores and having at its inner end a peripheral groove, the bushing in the end knuckle having a recess which extends inwardly of the outer end of the bore and which opens into the bore of said bushing and a pin retaining member positioned in said recess, said pin retaining member having a relatively narrow reversely bent inner end portion providing a ridge formation extending radially inwardly of the wall of the recessed bushing and resiliently engaging in said groove, and a tip member having a relatively short pin portion extending partially into said recessed bushing and overlying the outer portions of said recess to lock therein said pin retaining member.

References Cited in the le of this patent UNITED STATES PATENTS 636,332 Glover Nov. 7, 1899 807,680 Lewis Dec. 19, 1905 843,581 Caley Feb. 12, 1907 1,824,886 Hart Sept. 29, 1931

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