US2108774A - Hinge - Google Patents

Description

Feb. 15, 1938. s. UPERT www HINGE Filed 28, 1936 Patented Feb. 15, 1938 PATENT oFFlCE HINGE Sidney Linert, Edmonton, England Application December 2s, 1936, serial `1\ro..117,s33

In Great Britain March 2,1, 1936 3, Claims.

This invention relates'to hinges which, though they may have a wide range of application, have been more particularly designed for use in folding furnitureand the like', where it is necessary that when erected, the furniture shall be securely held against collapse and shall not be capable of wobble.

An object of this invention is to provide an improved manner of locking a hinge in what'will be called its erected position. l

1n accordance with this invention a hinge for joining together attheir endstwo bars adapted to be collapsed to lie adjacent and parallel with one another and to be erected into a limiting perpendicular position, in'which position the end face of hinge and engaging a shoulder or the like on the other face.

In accordance with a further feature of the invention, in a hinge for joining together at their a ends three bars which are adapted to be collapsed to lie adjacent and parallel with one another and to be erected into a position in which one bar stands perpendicular to the other bars, which are in alignment, the bar that is adapted to be erected intothe perpendicular is positively held against dislodgment when in that position by a catch piece on one of the other bars.

The invention will be described with reference to the accompanying drawing, wherein Figure 1 is a perspective view of a hinge according to the invention, adapted toy connect three rods or bars at their ends;

Figure 2 is a side elevation of the embodiment shown in Figure 1;,and

Figure 3 is a side elevation of a hinge for two rods or bars.

Referring to Figures 1 and 2, it will be seen that to the end of a bar II are pivotally connected the ends of bars I2 and I3 of similar cross-section, in such a manner that the three bars can be folded into a collapsed position in which they lie adjacent to and parallel with one another, or can be arranged in an erected position in which the bars II and I2 are in alignment and the bar I 3 stands out at right angles to them and is prevented from passing beyond this limiting position by contact of the end face of bar I3 against the inner edge face of bar II. Such an arrangement is useful, for example, in folding beds where the bar II can be one of the longitudinal side members, the bar-,I2 one ofY theside members, of the head rest, and the bar I3 a leg.

The end of the member |=I fis cut away on its opposite sidesrto receive side plates I4, which lie flush with the side faces lof the bar, and is also cut away in the middle 'to receive 4a reinforcing plate I 5 similar to the plates I4rivets i6 passing completely through the bar and the plates to se-` cure -the plates in position. The plates. have a size and outline substantially the same as the end of the bar with which they are associated, but at one corner of the bar II, and on one of the edges, a `short distance from the end, are formedeears, I] and I3 respectively.

n the end of the bar I2, are 'arranged similar- 1y to the plates I4 and I5, three plates I9 which have ears 2B shaped at the corner of the bar adjacent the ears II. Passing through the ears I'I and 20 is a hinge-pin 2l conveniently xed against dislod-gment as by peening; while intermediate the plates are disposedspacing collars 22 on the pin 2|.

Similarlyplates 23 on the end of the bar I3 are formed withears 24, and have pivotal connection with the plates I4, I by a hingle-pin 25 passing through ears I 8 and 24.

Projecting outwardly from theedge 26 of the bar I3 arelugs 21 formed integral with theplates 23. Similarly from theedge 28 of the bar I2 project L-shaped portions 29, across which is rigidly fixed acatch piece 30 as by being forced into an under cut or slot.

Referring to Figure 2 it will be seen that when the bars are disposed in their erected position, the bar I3 is positively held in place by the engagement between thecatch piece 30 and thelugs 21. The assembly is usually so arranged that the bar I2 is held in place by the forces resulting from the use; for instance where, as previously suggested, the bars II and I2 are the side members, and the bar I3 a leg, of a bed, the weight of the occupant will urge the head-rest bar I2 in an anti-clockwise direction as shown in Figure 2. In this connection it may be noted that the rearward ends of the plates I4 and I9 are mitred as shown thus adding strength to the joint between the plates and the bar.

Referring now to the embodiment shown in Figure 3, in this case the bar I2 has been eliminated and accordingly plates 3l replace plates I4 on the end of bar II, and plates` 23 on bar I3 are substituted byplates 32. As before, however, ears I8 and 24 are formed on the plates, and are pivotally interconnected byhinge pin 25.

In order to retain the elements in the erected position, aspring catch member 33 is pivotally mounted upon bar I3 as by means of a bolt 34 passing through the bar or its plates and also through the lugs 35 formed on the catch member. A spring 3B constantly urges the catch member in a clockwise direction, while at the forward end the member overlaps the end of the bar and is formed with a second pair oflugs 31 co-nnected by a transverse catch-piece in the form of afixed rod 38. The plates 3l have agroove 39 cut therein, and with this groove therod 38 engages as shown, to retain the bars Il l and I3 in the erected position. Thegroove 39 may extend into the end surface of the bar l l.v

It will be understood that the invention is not limited to the embodiments illustrated but may take other forms, and that a hinge constructed in accordance with this invention will have a wide variety of applications, not limited to folding furniture.

What I claim isz- 1. A hinge for joining together at their ends three bars, two of which are pivoted on the third and are adapted to be collapsed to lie adjacent and parallel with the third along opposite edges thereof, and are adapted to be erected, one by a movement throughrtwo right angles into alignment with the third bar, and the second by a movement through one right angle into perpendicularity with the third bar, comprising in combination, side plates and reinforcing plates Xed in parallel in the ends of the bars and having projecting ears, hinge pins passing through cooperating ears on the plates of the first and third bars, and of the second and third, and a transverse catch-piece carried by the plates of the first bar and engaging behind lugs on the plates oi the second bar.

2. A hinge for joining together at their ends three bars, two of which are pivoted on the third and are adapted to be collapsed to lie adjacent and parallel with the third along opposite edges thereof, and are adapted to be erected, one by a movement through two right angles into alignment with the third bar, and the second by a movement through one right angle into perpendicularity with the third bar, comprising in combination, side plates and reinforcing plates fixed in parallel in the ends of the bars and having projecting ears, hinge pins passing through cooperating ears on the plates of the rst and third bars, and of the second and third, and .a transverse catch-piece carried by L-shaped extensions on the plates of the rst bar and engaging behind lugs on the plates of the second bar.

3. A hinge for joining together at their ends three bars, two of which are pivoted on the third and are adapted to be collapsed to lie adjacent and parallel with the third along opposite edges thereof, and are adapted to be erected, one by a movement through two right angles into alignment with the third bar, and the second by a movement through one right angle into perpendicularity with the third bar, comprising in combination, side plates and reinforcing plates xed in parallel in the ends of the bars and having projecting ears, and hinge pins passing through c-o-operating ears on theN plates of the irst and third bars, and of the second and third.

SIDNEY LIPERT.

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