US1650435A - Door hanger - Google Patents

Description

Nov. 22, 1927. 1,650,435

R. w. DlsBRo DOOR HANGER Filed Nov. 7. 1925 IAVENTOR.

Macy@ Ygrains/15x45 Patented Nov. 22, r19227. 1 MNITNED ,.srArns..

tasas noenn W. Diseno," or CLEVELAND anrefnrs, onto, AssreNoa To THE Wi s. TYLER COMPANY, OF CLEVELAND, OHIO, A

CORPORATION OF OHIOJ' noon imiteren.`

Application mea November 7, 1925. serial intenso?.

The present invention, relating, as indicated, to door hangers, isparticularly direct ed toA an improved hanger for use in sliding doors which are subject` to sudden accelera 5 tion and deceleration when started from rest n and when brought to astop after opening, such, for example, as elevator doors used in buildings. v It isimportant that suchy Vdoors be opened as rapidly as possible and also be brought to restafter the opening, and it is in such operation of a heavy metal door which is hung from an overhead trackvvay, yas is lthe case in such constructions, that a very considerable forceis exerted, due to the momentum of the door around the` furthermost points of supporton the overhead trackway. The result of this operation is that one end of t-he doortends to rotate with respect t0 the otherexerting in some cases a tremendous force against the trackway and actually spreading or spacing apart the upper and lower trackways. After ref peated operation of this character the track- Ways becomesprung andeventually break, and when such breakage occurs it is frequently found that the anti-friction elements interposed between the hangers and the trackways drop out because of the widening of the upper and lower trackways, on which the door is supported. y

It is the purpose of the present invention to provide a door hanger or su porting means which shall not be subject to the above objections and which shall be capable of continued use without spreading or breakage even after repeated severe operation.' To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims.

The annexed drawings' and the following description set forth in detail certain mechanism embodying the invention. such disclosed means constituting, however, but one of various mechanical forms in which the principle of the invention may be used.

In said annexed drawings Fig. l is a perspective view ofniy improved hanger showing a portion of an elevator door secured therefrom; and Fig. 2 is a transverse vertical section showing a modification of the hanger illustrated in Fig. l. y

Referring now to Fig.V l, there is shown an elevator door 1 provided with a supportmtted ing element 2 which is secured to a movable element 3 in the form .of a longitudinally extending ,bar 4having raceways 4 and 5 inf its upper and lower surfaces. Received partly in these raceways and partly in correspondlng grooves 6 and 7 in track elements 8 and 9 are disposed antifriction elements in the form of balls l0 which roll along the raceways asthe movable element 3 and the elevator door l are moving to open or close'the door;` The supporting means foithe trackv eleinentsS consists of a channel member 9 provided with two parallelv arms l0 and 11. 'lhiselement is formed to have the arms'l() and 1l substantially rigid,`that is, to mainrtain these arms against any spreading or lat eralde-flection under any force that can be exerted by opening or closing the door which is supported therebetween. 'Each'fof `fthe arms l0 and `l1 of the channel member 9 is of substantial thickness and is provided with a rectangular recess l2 in'its inner face, that is, .in the face opposite to the other arm, in which is snugly fitted the/track elements 8, these elements then being secured therein by L screws or rivets 13, as may be desired, al-

though it will be understood that the force exerted upward on the upper track 8and downwardly on theflower track 8 is transfthrough the track directly to the arms 10 and l1 and is not resisted by the securing elements 13. The track elements 8 are formed to fit snugly into the recess 12 in the arms l0 and 11 in order that these elements may be backed up and supported throughout their entire length and on at least two,

and to some extent three, sides so that any deflection in the track elements is completely prevented since at all points along their length these elements are rigidly supported by the unyieldingV and heavy arms 10 and 1l.

With the present construction it is possible to employ wear resisting materials, such as hardened steel or alloy st-eel in the track elements and to then support theseagainst any deflection by the less expensive rigid brackets 9, which in turn are supported by either the side wall of the elevator car, if the device is employed for anl elevator, or by the wall of the elevator shaft if the device is employed with the shaft doors rather than the doors of the car itself.

I have found by thorough tests of the construction above described that under any 110 f friction elements to drop out from between ing track members the element 3 and the two trackway elements 8, While the wear on the hardened or wearresisting trackways is substantially negligible.

My improved hanger may be used Ain various lforms, and one modification of the device justdescribed is shown yin Fig. 2, in which an I-bea'mor I-shapedY member 15 is employed, provided with two pairs of spaced arms 16 and 17, and 18 and 19, between each of which are mounted movable elements 20 and 21 carried on antifrictionelements 22. Each of the elementsl 2O and 21 corresponds to movable element 3 of the ydevice of Figi, and constitutes the member from which the door is supported. In this construction, as in the one previouslyl described, wear-resist- 25 are set into suitably orined recesses in the opposite faces of the armsl and 17, and 18 and 19, of the channel member.

It will also be understood that individual elements of the character illustrated in Fig. 1 'may be assembled together in various combinations when more than one door is to be Supported, either backto back, which would give a construction corresponding somewhat to Fig. 2, or front to back,in which the open portion of one channel would be disposed directly against the back of another.

Other modes of applying the principle of my invention maybe employed instead'of the 4one explained, change being made as regards the mechanism herein disclosed, provided the means stated by any of the following claims or the equivalent of such stated means be employed.

Y I therefore particularly point out and distinctlyfclaim as my invention:

l". A door han er comprising a heavy rigid channel mem er rovided with recesses formed in opposite 'aces or' the arms of said channel, ltrackways mounted in such recesses and rigidly supported therein, a moving element disposed between said trackways, and anti-friction elements interposed between said element and said traekways.

2. A door hanger comprising a heavy rigid channel member having two lspaced horizontal arms eachv provided with a recess in the face opposite to the other of said arms, and wear resisting tracks set in such recesses and rigidly supportedtherein.

3 A door hanger comprising a heavy rigid 'channel member having two spaced horizontal arms each provided with arectangularrecess therein in the face opposite to the other'or` said arms, and rectangular wear vresisting tracks set into suchrecesses, said tracks being rigidly supported on three sides by the walls of such recesses.

1. A door hanger comprising a channel member substantially rigid against deflection betweenl the arms thereof, and trackways rigidly secured to the opposite faces of the arms of said channel.

5. AA door hanger comprising a rigid member having substantially rigid heads each provided with, recesses'on itsinner face, wear resisting trackways set'into such recesses, and means securing the same therein.y

Signed by me, this 20th day of October,

ROGER WV. DISBRO.

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