US2010835A - Safety window chair - Google Patents

Description

F. R. zABEL Er AL 2,010,835

Aug-13, 1935.

v SAFETY WINDOW CHAIR K Filed Feb. 17, 1934 2 SheetsjSheet l zj/. Z7 6/ Z, 4 /0\` f3 y Il n* L- li v /L '1,3 ""II.. l" Z 'IY f l' f mf Gij?, I /4 f 43- 6 ATTORNEY Aug. 13, 1935.

F. R. zABEL Er AL r `2,010,835 SAFETY WINDOW CHAIR 2 Sheets-Sheet 2 ATTORNEY Filed Feb. 17, 1954 d www.:

Patented Aug. 13, 1935 v V2,010,835` I g Y A,

1 ,SAFETY-WINDOW I Frederick n. Zabel analaobert NewYork, N. Y.

Penner,

Application February laissa-serial no. 711,630 i 9 Claims. (Cl.30 1-27) The present invention is concerned `with a safety window chair. I x

`It is the primary object of the invention to provide a collapsible chair adapted to be conveniently set up and mounted onalswindow sill so as to overhang the outside wall `of a buildingito sustain a. person and permit the latter to comfortablyclean thef'outside surface of a window.

It is a particular object of the invention to provide a novel window chair having a seat removably mounted on a windowsill to' overhang an outside wall of a building which cooperates with means carried by the chairrto resistsagging .of the seat. I f Y It is' a further object ofthe invention to provide a readily operable but collapsible and rugged safety window chairwhich will stand up under considerable usage and whichwhen disorganized f the chair.

f l It is a further object of the invention to prof vide acollapsble chair having a seatandA coop-` erating swingable sides adapted to removably sustain a swingable back of theV chair against said seat.

It is a further object of the invention to Aprojvide a collapsible chair including swingable casings adjustably and slidably carrying arcuate bracing members.

It is a further` object of the invention to provide a collapsiblechair adapted to cooperate with an `elongated bar disconnectibly'supported on a Window sill on the inside of the building whereby i clamping instrumentalities associated with said bar `serve to hold and prevent lateral displace:- ment of the chair. s 'It is a Yfurther object of the invention to providea` safety window chair which` may be con-- veniently collapsed as to occupy a relatively small space. f I

Other objects, advantages, and features of the invention are in part obvious Aand inpart hereinafter pointed out.

Fora clearer understanding of the invention 'Y attention is directed to the embodiment shown in the accompanying drawings in which:` Y I Fig.- 1 illustrates a side elevation of the safety window chair, according to the invention, shown` mounted on `a window sill and foverhanging an outer wall of a building.

. Fig. 2 is a plan View of Fig. 1. Fig; 3 is a section on the line 3'-3 of Fig. 1 on a larger scale.

Fig. 4 is a fragmentary view of Fig. 1 on a larger scale. n A, I

Fig. 5 is a rear view of Fig. 1. .1 s s Fig. 6 is a section on the line 6`6 of Fig; v4 and Fig. 'I is a planview of the safety window chair shown collapsed or folded. s f

i z `The safety .window chair is generally designated' I0 and `comprises a relativelypwide and at seat or base Il. "As shown the seat is substantially square in configuration `butthe invention is not limited infthis respect. If desired, of course, the seat may be of any suitable configuration. l The seatis provided vwith spaced upstanding flanges I2 and l3 which areinterconnected by a common `rear upstandingf flange HI.` According tothe invention seat Il togetherwiththe spaced sideflanges s I2`an`d vI3 and the rear flange I4l are formedorstamped out of asingle piece o f sheet niaterial,A preferably,` of fand] appropriate metal. Flanges I2, I3.`and I4 constitute therefore, an'integral threejsided rim extending above the ele-` Vationpof the Abase plate or seat II'. l

Straddling each ofthe spaced side flanges and appropriately secured `thereto is a pair of spaced brackets as I5 and` IB, each ofwhich define hollow ears or curved guiding members as I I to slidably Vand rotatably receive displaceable `rod I8 bodily carried bythe coiled ears "I9 and' 20 de-V pending fromthe swingable and foldable spaced side 2I which may vvbe slidably. displaced longitudinally ofand relative to `an associated side flange ofthe seat.` The coils I5; I6, I9 and 20 in association7 with itsrod IB infact constitute a hinge connection` permitting a side wing 2| `to be swung towards or away from the seat II. It

vwill -be noted'that a strap as 22 is secured to each side `wingfl.` and has. its lower portion coiled about the intermediate guide ear` 2l!4 to reinforce Y thelatter.

. Theupperfaceof each side wing is preferably Lbeadedas`23"o presen-t a relatively smooth con-7 t tour, and each bead operatively includes a suit- @appropriately secured `to the spaced -side anges I2 andllfY The .swingable back wall 21 has a re4 AUl eXed end 28' movably coiled about the ulcrum rod 25 providing a hinge connection therewith to permit back 2l' to be swingably moved towards and against seat H or away therefrom.

YExtending rearwardly from the back wall 21 is a pair of iianges` or ribs as 28 each adapted to be removably received in a groove or channel 29 formed by a terminal and inwardly turned ange 3U associatedwith'each side'wing 2|. In setting up the chair, the side wings are rst raised from the back wall 2l after which the back wall is raised from the seat permitting spaced ribs 28' partly interlocked with the inturned flanges (3E).

As the back wall 2l is progressively swung rear- Y wardly ribs 28 will be fully andl completely received by the inturned iianges. In the progressive and gradual reception of the ribs 28 as the back is moved rearwardly, side wings 2l are rectilinearly displaced rearwardly. Consequently, it may be advisedly stated that the rear wall 21 Y constitutes actuating means `for interlocking ribs 28 'with the cooperating receiving channels 29 of the side ,wings for the dual purpose of holding the back and side wings assembled and for Vpreventing the collapse or folding of the rear wall and side wings, it being noted that ribs 28 of the rear wall are `of a less width than the height of the side flanges as i3 (see Figi), hence permitting the back wall 2 and its ribs 28 to be `coniined Within the three sided rim formed by the side ilanges i2 and I3 and the companion rear interconnecting flange'lll.

.. In folding kor collapsing the safety chair, the

- back 2 is yrst disconnected vfrom the side wings and vswung to lie against the seat l i Side wings 2l. are then moved rectlinearly and forwardly on their respectivel side flanges and subsequently swung, inwardly.. until A.spring actuated plunger 2d interlocks `with a companion holding plate 25. It isthus apparent that .the side wings 2l hold the back Vwall 2l againstv its seat. In unfolding the chair,l from its collapsed form, plunger 2d, may be readily disconnected from the hol-ding plate 25 by applying an upwardly directedvngerfpressure on beaded edges23, Vthe back wall 21 being also provided with abeaded edgeY 3i to present a rela.- tively smooth contour as is well understood.

4 suitably attached to each fof the vrearcorners on the lower. face koi the base plateorseat l l is a bracket 32each having spaced coiled bearings or eyelets 33 and 3d depending therefrom. A pin or rod 3.5 isappropriately sustained and journalled in each o f the bearings 33 and 34. Hingedly and 'swingably mounted between bearings 33 and 34 and carried by rod 35 is an arcuately coiled ilange 36 extending upwardly from an inner plate 3l' ,of a swingable casing generally denoted 33'which` comprisesl suitably interconnected. spaced plates as 3l between .which is adjustably andslidably guided an arcuate shaped brace or leg 39, 'the lower terminal of which carries ai removable ,rubber socket 4E).

vcasing and cooperates with spaced notches '545 seat l l. are substantially parallel to the bottom face of the whereby a leg or brace 39 may be adjustably set `relative to a respective casing. A projection as 56 carried at the upper ends of each brace 3S overhangs one of the spaced plates and prevents accidental withdrawal of a brace from its casing in the event latch dog 64 has been accidentally displaced out of a notch 5. Cooperating with latch dog i4 is a relatively fiat spring il which serves topositively hold the former in a desired notch. The tension of spring :il may be adjusted by a set screw as 48.

Since the casings 3'! are hinged they may be swung towards or away from the bottom face of In their folded or collapsed position they seat and approximately in alinernent as indicated in Fig. '7. The casings are held locked in 'their folded position by reason of a spring actuated y plunger 49 operatively held in a depending bracket G attached to the lower face of seat l i, that is to say, plunger i9 removably interlocks with the spaced sides 3l of an associated casing 33 to prevent the latterl Vfrom swinging away from the seat oi the safety cha-ir. 4

With the casings 3l swung to the vertical positions that is, substantially perpendicular to seat i as indicated in Fig. 5, they are sustained and lockedin such position by the cooperating snap lock complements, namely a lug or spheroidal shaped member 52 extending from eyelet 36, which member is adapted to be removably held by Yan interlocking lip orY socket 53 carried by a resilient hollow strap 54 attached to side flange as i3. It is thus apparent, that the casings 3l, when in their folded position are prevented from swinging away from seat l l and when in operative position for supporting the seat, they are prevented from being accidentally folded towards the seat.

Having unfolded and locked the several parts of the safetywindow chair in their desired positions, the chair may be placed out of a .window and mounted on a sill thereof so as to overhang an outside face of a building for sustaining an operator desiring to work on the window or the outside part of the building .To this end, a relatively flat retaining bar 54 is rst mounted on the window sill 55 of frame 56. This bar extends across the entire width of the window frame 5S, with the ends of the bar abutting the sides of the frame. The channelled end 5l of the seat i l is then moved rearwardly so as to receive the flat retaining bar 54. Channel 5l is formed by rst bending the forward end of the seat l l down@ wardly and subsequently folding a portion of the downwardly bent end rearwardly as tobe substantially parallel to the body of the seat.

With the seat interlocked with the at retainingbar 54, spacedcollars 58 which encompass the bar 5e are then slidably moved against the side flanges l2 and i3 and clamped to the bar by the wing clamping nuts 59 to prevent lateral displacement of seat il. In Fig. l it will be noted that the seatV is interlocked with the retaining bar 5d and has its rearward portion overhanging the front. wall' @il of a building. In such postion braces 39 have theirresilient or rubber sockets abutting the building. These braces also resist vthe load applied on the seat, preventing the latter from sagging. In a seated position, the operator may easily clean a window as E i.

lTo remove'the chair from the window, side .clamp collars 58 are released. Subsequently, seat llrisdisconnected from the interlocking retaining bar 54. The chair is then free to be bodily moved through the window and inside of inwardly, hence causing the arcuate braces to overlap in flatwise relationship and these are held against each other and the innermost thereof against the seat byfreasonof the snap lock plunger 49. In this collapsed form, the chair occupies a relatively small space and maybe easily and conveniently transferred. from place to place i by utilizing the handle 62 mounted on the rear While the invention has been described in detailV and-reference hasrbeenmade `to specic applications thereof, it is to be understood that the invention lherein disclosed is not limited tov such specific applications and it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not inra limiting sense. l

We claim:

1. In a device of the class described, retaining means removably mounted across a window frame of a building, a seat removably interlocking with Said retaining means and in part overhanging an outside face of said building, spaced casings hinged to said seat, means for locking said casings when disposed substantially perpendicular to the bottom face of said seat, an adjustable arcuate brace slidably carried by each casing, means to lock each brace in an adjusted position, and separate means to prevent displacement of said casings when disposed substantially in horizontal alinement.

2. Ina device of the class described, retaining `means removably mounted across a window `frame of a building, a seat having one end removably interlocking with said retaining means `and another end overhanging an outside face of said building, spaced members hinged to said seat, an arcuate brace bodily and adjustably carried by each member, -each member having a complementary locking portion, means depend- `ing from the sides'of said seat adapted to removably interlock with a complementary locking portion of an associated member, each brace having a resilient socket adapted to abut an outside face of said building, said braces preventing sagging of the overhanging part of said seat, and meansA to prevent removal of a brace froman associated member.

3. In a window chair, retaining means,`a seat having a channeled portion removably interlockl ing with said retaining means andV another portion adapted to overhang an outside face of a building, swingable and settable means carried `by said seat to prevent sagging of said overhanging portion, means for holding said swingable and settable'means adjacent said seat, said chair having hinged and spaced side wings, and a means flatwise adjacent said seat, said chair comprising side wings having terminal channel portions, and a swingable rear wall hingedly connected to said seat having means cooperating with said channel portions to rectilinearly displace said wings and removably `interlock therewith.

5. In a collapsible safety window chair, the combination of, a relatively elongated bar, a seat having a channel portion removably interlocking with said bar and. another portion adapted to overhang an outside face of a building, adjustable and settable `means carried by said seat to prevent sagging of said .o-verhanging portion,

locking means for holding said settable and adjustable means flatwise adjacent said seat, said chair comprising rectilinearly displaceable hinged. and spaced side wings having terminal channeled portions, a swingable rear Wall hinged- 1y connected `to said seat and having rearwardly disposed flanges adapted to be received by said channeled portions to rearwardly displace said side wings.

6. In a collapsible safety window chair, the combination of,a relatively elongated bar, a seat having a channeled portion removably interlocking with said bar and another portion adapted to overhang an outside face of a building, swingable spaced members hinged to said seat, brace means adjustably and slidably sustained by said members, means to prevent displacement of said brace means relative to said members when the latter are disposed substantially perpendicular to vsaid seat and separate lock means to prevent displacement of said members when the latter are disposed substantially parallel to said seat.

7. In a collapsible safety window chair, the combination of, a relatively elongated bar, a seat having a vchanneled portion removably interlocking with said bar and another portion adapt-Y ed to overhang an outside face of a building,`

adjustable clamping means slidably carried by said bar to prevent lateral displacement of said seat, swingable spaced members hinged to said seat, arcuate and notched brace means adjustably and slidably sustained by said members,

means to prevent displacement of said brace means relative to said members when disposed substantially perpendicular to said seat and means to prevent displacement of said members when disposed substantially parallel to said seat.

8. In a collapsible safety window chair, the

combination of, a seat having hingedly connected sides, and a hinged rear wall, said wall and sides having cooperative means to rearwardly displace rear wall.

9. In a collapsible safety window chair, the

combination of, a seat comprising a channel portion, adjustable and swingable braces having corresponding portions adapted to be bodily moved towards the center of and adjacent said seat, disconnectible complementary locking means to prevent displacement o1 said braces, said chair `having rectilinearly displaceable spaced hinged .means to prevent displacement of said side wings relative to said rear wall, said seat having a handle for bodily carrying said chair from place to place.

FREDERICK R. ZABEL. f ROBERT PENNER;

Ysaid sides upon rearward displacement of said

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