US2008257A - Concealed door hinge - Google Patents

Description

Emily 1% 1935. B. G. LEFEVRE 2,003,257

C ONC EALED DOOR H I NGE Filed Feb. 9, 1954 Patented July 16, 1935 This invention relates to hinges designed for automobile doors or forother purposes where a pronounced offset or throw-out action is desired.

It is the general objectof my invention. to provide an improved hinge for such purposes, so designed that the initial opening movement of the door will be a-simple swinging movement, followed by an abrupt throw-out movemenbafter the edgeaofthe door'has cleared the door jamb.

A further object of my invention is to provide a hinge by which substantially increased clearance for the open door is effectively attained.

V Myv invention further relates to arrangements and combinations of parts which will be hereinafter described and more particularly pointed out in the appended claims.

-A.preferred.form of the invention is'shown in the drawing, in which 1. i

Fig. l is a plan view of my improved hinge in closed position; t

Fig. 2, is a plan view of the hinge inopen position;

Fig. 3 is-a sectional plan view of the hinge when slightly open; a I V Fig. 4.is a side elevation of the open hinge, looking in the direction of the arrow 4 in Fig.2;

Figs. 5, 6, 7- and 8 are perspective views of four of thecomponent parts of the hinge;

Figs. 9, 10" and 11 are plan viewsof modified cam plates, and i i Fig. 12 is a detail sectional plan view illustrating any slight modification.

Referring to the drawing, I have shown a hinge comprising hinge plates and 2|, links 22 and 23, a cam plate 24 (Fig. 2), hinge pins 25, 26, 21 and 28, and a guide-pin 29.

The hinge plates 20 and 2| are provided with openings to receive screws or bolts by which the plate 20 may be attached to a supporting structure, such as the body or pillar post of an automobile, and bywhich the plate 2| may be attached to the edge of a door or other swinging member.

The plate 20 is provided with upper and lower bearing portions and 3|, which in turn are provided with spaced bearing openings 32 and 33. The axes of these openings are parallel and are preferably located in a plane at a substantial acute angle to the planes of the hinge plate 20, as clearly shown in Figs. 1 and 3.

While this angular relation of the bearing openings is usually preferred, it is sometimes desirable to place the openings in a plane forming only a. slight angle, if any, with the hinge plate 20, as indicated in the modified hinge plate 20 shown in Fig. 12.

The hinge plate 2 l is provided with. upper and lower bearing portions 40 and 4| at one edge'and with similar bearing portions 42 and at the otheredge, these bearing portions having bear ing openings 44 and 45 for the hinge pins 21 and 28 respectively. i Thelink 23 has a bearing opening 50 at one edge'and spaced bearing portions at the opposite edge, provided with a bearing opening 5|. The link 22 has a bearing opening 52 at one edge and a bearing opening 53 in an opposite edge portion of reduced length. The cam plate 24 has bearing openings 55 at its opposite ends and isprovided with a cam slot 51, as shown in Fig. 2.

- In. assembling the parts, the hinge pin 25 is passed through the bearing openings 33 in the plate 20 and the bearing opening52 in the link 22, thus pivotally connecting these parts. The hinge pin 26 is inserted in the bearing openings 32 of. the. plate 20, and in an opening 55 at one end of the cam plate24, which: plate 24 swings about the axis of said hinge pin 261 The opposite end of the cam, plate 24 is pivoted to the hinge plate 2| by the hinge pin 28, which is inserted in the bearing openings 45 of the plate 2|. The hinge pin 21 passes through the bearing openings 44 of the plate 2| andthrough the bearing opening. 50 of the link 23. The links 22 and 23 are connected by the guide pin 29, which extends through the bearing openings 5| and 53 andhasa closefriction fit'in one of these members. pin 29 extends through the slot 51 in the cam. plate 24, as shown in Figs. 2 and 4.

From this description, it will be evident that the hinge pin 28 must always move in the arc of a circle about the axis of the hinge pin 26 as a center, while the links 22 and 23 act as a toggle to project the hinge pin 21 outward, the action of the toggle being controlled bythe guide pin 29 and the cam slot 51.

In the operation of my improved hinge, the initial opening movement is a simple swinging movement about the axis of the hinge pin 26. As soon, however, as the edge of the door clears the door jamb, and as soon as the cam plate 24 has simultaneously moved slightly to the right, as indicated in Fig. 3, the guide pin 29 controlled by the cam slot 51 tends to straighten the toggle formed by the links 22 and 23, and thus efiects' a rapid throw-out movement of the hinge pin 21, while the hinge pin 28 swings about the fixed axis of the pin 26. v

-TED TATES PATENT oF cE.

The upper end of the guide The hinge plate 2| is thus moved quickly to the position shown in Fig. 2, in'which position the hinge plate 2| is very substantially offset away from the hinge plate 20 and from the outer surface of the body or other part to which the plate 20 is secured.

The guide pin 29, by engagement with the inner end of the slot 51 (Fig. 2) constitutes a stop to define the open position of the hinge.

In Figs. 9, 10 and 1171 have'shown additional cam hinge plates 24 24 and 24 respectively, in which cam slots 60, El and 62 of'modified position or outline are provided. By thus varying the.

outline and angular position of the cam slot, the offset or throw-out movement controlled as desired.

It will be noted that substantially allof the weight of the door; is carried. :bythe hinge links 22 and 23, and that little if any weight iscarried by the cam plate 24 which is provided solely for directing the-movement ,of the guide :pinl:29.=

This type of concealed door hinge is particularly-,vdesirablelwhere athciouter surface of ithe :b'ody adjacent the .hinge ,iS": provided; with .a zsu'bstane tially= projecting. bead; or molding, or" in: cases where ,a' pair of spaced hingesjare -us.ed;onaa =body having ,a surfaceoutwardly curved between the points where the hinges are attacheda Having thus-described my invcntion;and:.the advantages thereof, I do 7 not wish-Ito be; limited to the details herein disclosed; otherwise than as r set forth in theclaimsbut whatl'claimishe l; 'A-con cealeddoor-hinge comprising "awhinge plate to henattache'd to ,a supporting; :p'art; ayhin'ge plate :to'be attachedv to: a swinging part, alwpair of toggle linkseach'having-eone; end pivotally- 0011+ nected -to one ofgsaid: plates,za projecting; guide pin pivotallygconnecting; the: opppsitezends; of said links together; and a ,cam rlplate ipivotedsat each endto one of said'hingeiplatemsaidicam platezhaving; 8;:(38LII1fS1OUjiI1l30 which :the project-ing end of said guide pin extends, and. said -;cam .s1ot and 1 guide spin thereby controlling the opening and closing movementssofls'aidlswingmg hinge plate;

2; A ,concealedzdoonhinge xcomprisingza ihinge plate to beattached'to assupporting partga hinge Plate stoabie attached topar swinginggpart; a pair of togglelinks seach; having; one end pivotally connected to one of said rplates, an projecting guide pin pivotally;connectingazthe ,loppositeeends ofsaid links .togetlier;andrzai-nam platev pivoted at ,eachendtoone-of .saidhinge. plates; said cam maybetimed: and I plate having a cam slot into which the projecting end of said guide pin extends, and said cam slot and guide pin thereby controlling the open?- ing and closing movements of said swinging hinge plate and providing a stop to limit such opening movement.

3. A- concealed door hinge comprising a hinge plate to be attached to a supporting part, a hinge plate to be attached to a swinging part, a pair of toggle links each having Que-end pivotally connected to one of said plates; a-Vpg-ojecting guide pin pivotally' connecting the opposite ends of said links together, and a cam plate pivoted at slot and guide pin thereby controlling the openlin'giandlclosing movements of said swinging hinge plate, said toggle links supporting substantially the entire swinging load and said cam plate having substantially ajdirectionaliunction only;

4-: A concealed door, hingexcomprising lalzfirst hinge pla-te,;to be attached to: a-zsupporting part, atrsecond hinge plate to be attached to .a swinging part, a pairofr: toggle rlinkswpivotally con:- nected together and also connecting one ndI'Of said seeond hinge*plateetolsaid first hingeplate, and 5a ;cam'.plate connecting the-opposite endof said 'secondehinge'plate tosaid first hinge plate, said cam plate having acam'slot therein and said toggle links having an element projecting fromttheir point of; pivotal connection and: co operating.--with said .cam slot to controlzithe-actionnof said. toggle links. as saidfhinge is opened enclosed; I i

hinge :plate' to be attached-to a supporting-apart,

l l 5. A concealed door hinge zcomprising aiinrst V a second hinge plate to be attached to'a swing' I ing part, a pair of toggle lin-ks' -pivotallyxoonnected together and also connecting one endofsaid 'secondhingeplate to said first hinge plate; and

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