US1408628A - Door-opening mechanism - Google Patents

Description

P... A. 0SHANYK. DOOR OPENING MECHANISM.

APPLICATION FILED JAN. 24- 1921- v Patented Mar. 7, 1922.

abfoinug UNITED STATES Specification of Letters Patent.

PETER A. OSHANYK, OF WIL'I'ON, NORTH DAKOTA,

noon-ornmne MECHANISM.

Patented. Mar. '7, 1922.

Application filed January 24, 1921. Serial No. 439,627.

T 0 all whom it may concern:

Be it known that I, PETER A. OsrrANrK, a citizen of the United States, and a resident of Wilton, county of Burleigh and State of North Dakota, have invented certain new and useful Improvements in Door-Opening Mechanisms; and I do hereby declare that the following is a full, clear, and exact description of the invention such as will enable others skilled in the art to which it up pertains to make and use the same.

This invention relates to improvements in door opening mechanisms, and has for an object to provide a mechanism of such character, particularly adaptable for the opening of the sliding doors of garages and like structures, whereby when a vehicle is to be driven into a garage so equipped and is in proximity to the doors thereof, these doors will be caused to automatically open and then close subsequently to entrance of the vehicle.

Another object of the invention is to provide a mechanism of, the character mentioned including a novel and simple arrangement of levers for transmitting the initial motion imparted to the doors in such a manner as to slide said doors in opposite directions to their respective open positions, and later returning them to their normal ar' rangement, and during such return, elfecting the sliding of the doors to their respective closed positions.

Other objects will be in part obvious and in part pointed out hereinafter.

In order that the invention and its mode of operation may be readily understood by persons skilled in the art, I have in the accompanying drawings and in the following detailed description thereof, set out one embodiment of the same.

In these drawings,

Figure 1 is a front elevation of a garage,

the sliding doors of which are equipped with my improved door-opening mechanism. a part of the doors and housing structure being broken away and shown in section;

Figure 2 is a fragmentary vertical, section taken on the line 22 of Figure 1;

Figure 3is a horizontal section taken on the line 33 of Figure 1; and

Figure 1 is a reduced fragmentary detail in section showing the relative arrangement of the levers of the opening mechanism when in actuated positions.

Having more particular reference to the drawings in connection with which like characters of reference will designate corresponding parts throughoutthe several views, 1 represents a garage equipped with a pair of oppositely disposed ,slidable doors 2. F lushly arranged in a pit or pocket formed partly within the garage and partly without the same, is a substantiallyrectangular housing 3 which serves as means for receiving the various levers of my improved dooropenmg mechanism, and also as means for recelvlng in the open upper end thereof, a pair of oppositelyinclined platforms designated by the reference charactersi and 4:. In this connection, it is to be noted that stops or rests 5 are secured to the inner sides of the opposite end walls of the housing 1', and receive thereon, at times, adjacent portions of the platforms 1 and 1-, the remaining extremities of these platforms being received on the opposite sides of the track 6 arranged in the housing and disposed transversely thereof intermediate said end walls; this arrangementbeing clearly shown in the Figure 4:. In addition to affording means for receiving the adjacent extremities of the several platforms 4 and a, the track 6, obviously, also affords means for receiving the roller bearings 7 of the several slidahle doors 2,.in order that the same may be freely moved.

Positioned on the bottom of the housing 3 and disposed transversely of the same directly beneath the transverse track 6,,isa bar 8 having its opposite ends curved upwardly as at 9 and provided with bracketed. extremities 10 which are attached tothe door frame structure 11 of the garage 1, and. thus serve to brace the same as well; as the body portion of the bar and its curved extremities 9. Pintles 12 are secured to and. extend laterally from the upper sides of each of the curved ends 9, and serve to pix-iotally mount operating lovers 13 on the bar 8 at distances sufficiently above the same to permit of free pivotal movement of said lovers. The lower portions of each. of theselevers 13 are reversely curved as at 14 and provided with inturned slotted extensions 15, which in turn have loose pivotal connection with bell crank levers 16 mounted on brackets 17 in the bot- A maintain said levers, together with the levers 2 I incense 13, in their respective closed or initial peel-- tions.

As means for transmitting the necessary motion to the operating levers 13 whereby to effect sliding of the particular doors 2 connected thereto, to open and closed positions, levers 19 and 19 are pivoted to the under sides of the several platforms 4 and l-V, preferably at points in proximity to the outer marginal portions thereof, as shown in the Figures 2 and 4-, said levers being 1nounted, in suitable hearings on brackets 20 so cured to adjacent portions of the housing 3, while the hereinbeitore mentioned pivotal connection of the same with the platforms at and. at effected through the medium oit transverse bars 21 extending across the under sides of the platforms 4; and t in pro imit-y to the outer marginal portions thereo't; there being levers 19 and 19 pivotally connected to the opposite extremities of each of said bars, as shown in the Figure 3. The inner ends of the levers 19 and 19 are slotted and have loose pivotal connection as at 22, while other levers 23 are pivotally connected at 241; to the lovers 19 and 19" and have mounting in brackets 25, also secured to adjacent portions of the housing 3, the remaining ends of said levers 28 being pivoted to the opposite extremities of arms secured to and extendingtransversely to the under sides of the platforms land 4: in a manner co1'res] )onding to the arrangement of the bars 21.

In order to brace thesidc portions of the housing 3, and to render the same s'utliciently rigid to withstand stress imparted thereto by passage of vehicles into and out of the garage so equipped, I may and preferably do arrange diagonal braces 27 longitudinally of the housing and in proximity to said opposite sides, offsetting the extremities of the same and securing them as at 28 to adjacent portions of said housing sides,.

while the intermediate portions are secured at 29 to parts of the transverse bar 8.

The operation of my improved door-opening mechanism may he described'as tollows: A vehicle to be driven into or housed by the garage l is directed onto the front plat- Form 4, whereupon the weigliit of said vchicle will effect downward movenicnt ot' the flat-form t, which in turn will force the outer ends of the levers l9 downwardly and the inner end upwardly; By reason of the upward movement of the inner ends of these levers 19', contact between the same and the inwardly extending ends 15 oi the operating levers 13 will he ell'ected and a resultant forward thrust imported locach of the same Because of the tact that the levers 13 have )ivotal mounting on the curved ends 9 of t e bar 8, it will be appreciated that such upward thrusts will cause the remaining ends thereof to be swung outweirdly, and since these remaining ends have pivotal connection as at with their respective doors 2,said doors will be immedi ately slid in opposite directions to their open positions. The vehicle upon entering the garage 1 will travel over the remaining platform t, and by consequence, will cause the doors 2 to be lllillfltitll'lGCl in their opened positions. However, when the platform 4? is relieved oil the weight of the vehicle, a contractile coil spring 18, which hasbeen previonsly placed under tension by the openiijir, oi" the doors 2, will promptly act to draw the bell crank levers 16 to their normal positions, and by reason of such action, will iii"!- part pivotal motion to the maerat-ing levers 13 in a direction oppositeto that first e:-:- plainod, and thus slide the doors 2 in opposite directions to their respective closed positions.

It may be here noted that due to the provision of the levers 23, the several platforms 4; and t, when subjected to the weight ot a vehicle or other object arranged thereon, will be prevented from tilting with relation to the adjacent portions of the housing 3, and also will provide acomparatively substantial. support for the vehicle or other object thereon without effecting detrimental results to the remaining lovers of which the improved opening mechanism is comprised.

Manifestly, the construction shown is capable of considerable modification, and

such modification; as is within the scope of my claims, I consider within the spirit of my invention,

I claim: i

1. In combination with the oppositely disposed slidable doors of a building, a hous ingmounted tlushly' with respect to the flooring of said building, partly within and partly without the same, opposed vertically movable platforms arranged over theopen upper portions of the housing, longitudinal levers mounted on the opposite sides of the housing; pivotally connected-at their opposite ends to portions of said platfmrn'is and having their inner ends pivotally interconnected vertical levers i'i'iounted transversely in the housing;- having, pivotal connection at their upper ends with said doors and their free ends arranged in horizontal planes in the path of movement of the inner-portions of said first levers, and spring means core 1 to said transverse lever, i. ii" normally aining the same in their inward posh maint tions.

2. In combination with the oppositely disposed slidable doors of a building, a housing arranged tlushly with the flooring thereot, partly within and partly witl'iout the same, vertically movable flatforms arranged in the upper portion of said housing, means for limiting downward movement of the platforms, longitudinal. levers mounted on the opposite sides of the housing and having pivotal connection at their opposite ends With portions of the platforms, vertical levers mounted transversly in the housing having the lower portions thereof bent laterally and inwardly and disposed in the path of travel of the inner portions of said first levers, and means for normally main taining all of said levers in and returning the same to their initial positions.

In combination with the oppositely disposed slidable doors of a building, a housingarranged flushly with the flooring there of, partly Within and partly Without the same, vertically movable platforms positioned adj accnt the open upper portions of the housing, a bar disposed transversely of the housing bottom and arranged intermediate the opposite end Walls of the same, having brackets on its opposite ends, vertical transversely movable levers pivoted to the brackets on the opposite ends of said bar having pivotal connection at their upper ends with the doors, the lower portions of said levers being bent inwardly and laterally, bell crank levers mounted in the housing having pivotal connection With the adjacent ends of said inwardly and laterally bent portions of the vertical levers, spring means interconnecting said bell crank levers, longitudinal levers mounted on the opposite sides of the housing having pivotal connection at their outer ends with adjacent portions of the platforms and their remaining ends pivotally interconnected and disposed for imparting motion to the inwardly and laterally bent portions of the vertical levers adjacent thereto, and other levers mounted on the opposite sides of the housing having certain of their ends pivoted to said longitudinal levers and their remaining ends pivoted to the inner portions of said platforms.

In Witness whereof I have hereunto set my hand.

PETER A. OSHANYK.

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