US2952305A

US2952305A - Chair and like seating

Info

Publication number: US2952305A
Application number: US817867A
Authority: US
Inventors: Bailey Robert
Original assignee: J Cinnamon Ltd
Current assignee: J Cinnamon Ltd
Priority date: 1958-06-05
Filing date: 1959-06-03
Publication date: 1960-09-13
Anticipated expiration: 1977-09-13
Also published as: GB857033A; BE579384A; DE1176806B

Description

R. BAILEY CHAIR AND LIKE SEATING 2 Sheets$heet 1 Filed June 3, 1959 Sept. 13, 1960 R. BAILEY 3 9 v CHAIR AND LIKE SEATING Filed June 3,, 1959 2 Sheets-Sheet 2 CHAIR AND LIKE SEATING Robert Bailey, London, England, assignor to J. Cinnamon Limited, London,'England Filed June 3, 1959, Ser. No. 817,867

Claims priority, application Great Britain June 5, 1958 3 Claims. (Cl. 1'5'5-179) This invention relates to resilient seatings for easy cha1rs, settees or vehicles (hereinafter referred to as chairs), of the type wholly or mainly employing tension p ngs;

.This kind of tension spring seating where loose cushioning is employed has the disadvantages that the tension spring arrangement in time becomes impressed on the underside of the overlying cushion, and may be such astomake-the cushion unsuitable for reversal, and that the tension spring arrangement requires .a substantial and thick upholstery or loose cushion (usually of foam ruh her) which is expensive. v

.Anw aim ofthe present invention isto provide a' seating structure which will avoid these disadvantages by eliminating the liability of the said spring impressions and by providing for the use of a thinner or less expensive overlying cushion.

The invention consists in a resilient seating structure comprising an upper deck of canvas or other flexible materlal .of an outline congruent with the shape of. the chair framing in the region of the seating plane, supported at theedges on tension springs arranged more or less parallel with the seat framing and anchored to said framing; a lower .deck of convas or other flexible material spaced vertically fromand'preferably of sub stantially less area than the upper deck .to aiford re-.

silient support mainly in the buttocks area and supported by tension springs radiating or extending outwardly there from to said chair framing; anda relatively thin resilient cushion of an area substantially confined tothat of the.

buttocks, secured sandwichwise between the two decks,

' In carrying the invention into effect various embodiments of the resilient seatingwill behereinafter describleld with reference to the accompanying drawings in Whic Figure 1 is an isometric view of a chair having one form .of resilient seating embodying the features of the invention... 7 I

1 Figure 2 is aside elevation of the chair shown in Figure1. ,1

Figured is a planview taken on line 3'-3" of-Figure 2 showing the arrangement of the springs supporting the pper k ft s a i g. f f V Figure 4 is a plan view taken-online 4 -4 of Figure 2 showing the arrangement of the springs supporting the lower deck of the seating with the intermediary cushion removed.

Figures 5 to 9 are partial plan views of various modified forms of the seating showing various alternative arrangements of the springs supporting the lower deck.

Figure 10 is a partial plan view of a further modified form of the seating showing an alternative arrangement of the lower deck and the springs supporting the same.

With regard to the embodiment of the invention shown in Figures 1 to 4 the resilient seating of the chair 1 is formed by two spaced decks of canvas or other flexible but inextensible material disposed one above the other to form an upper deck 2 and a lowerdeck 3. Each deck isindependently supported within the area defined by the chair framing structure in the region of the seating plane l and formed by side members 4 by

tension springs

5 and 6 anchored to brackets 7 secured to the chair at or adjacent the corners of said framing structure. The brackets each have a of spaced arms or lugs 7a and 7b adapted for receiving, or attachment to, the ends of the} deck supporting springs and each bracket is secured to the framing structure with one of the lugs thereon re,

cated above the other so that theuppermost lug 7a of each bracket lies substantially in the plane of the upper deck 2 and the lower lug 7b lies substantially in the plane of the lower deck 3. The area and outline of the upper deck 2 is generally congruent with the shape of the chair frame structure in the region of the seating plane and a tubular pocket or "seam 8 is provided at each of the four marginal edges of the deck each to receive a tension spring 5 formingpart of the resilient support for the upper deck. Each spring 5 extends through its respective pocket 8 generally parallel and closely adjacent to a side 4 of the seat frame structure and its ends are anchored to the uppermost lugs 7a of two of the corner brackets 7.

The upper deck 2 is thus supported at the edges by four tension springs 5 and the tension in these springs is such as to exert a pull on the upper deck tendingtotighten and stretch the same across the area defined by The: lower deck 3 is spaced vertically from, but is preferably the seat framing structure in the seating plane.-

of smaller area than, the upper deck 2 to afiord resilient support mainly in the buttocks area and is supported by tension springs 6 radiating from the corners thereof to the corner brackets 7 on the chair frame structure in the region of the seating plane.

The lower deck 3 is preferably of quadrilateral or:

. rectangular form generally similar in outline to that of the upper deck 2' and the four corners thereof are each. turned or folded over andsecured to provide an oblique. tubular pocket or loop 9 at each corner of the deck; A rod or bar 10 is passed through and located within;

. each pocket 9 with the ends: of the rod or bar protruding; slightly beyond the ends of the pocket. A pair of tension: springs 6 are each attached at one end'to one of the;

protruding ends of each bar 10, and the other ends of the-springs are anchored to the lower lug 7b of a bracket 7 secured to the adjacent corner of the framestructure; The rods 10 spread or space apart the ends of the springs- 6 attached thereto so that each pair of springs converges outwardly of the lower deck towards the adjacent corner? bracket 7 and assumes a generally V formation. The.

tension in the springs 6 retain the lower deck 3 stretched taut in a plane below and substantially parallel to thatof the upper deck 2. The resilient seating is completed; by a relatively thin resilient cushion 11 which is located.

sandwichwise between the two

decks

2 and 3. The cushion ll'may be of foamed rubber, plastic or any suitable re:

s'ilient padding material, andisprefera-bly enclosed withina cover or envelope which may be secured, detachably or otherwise, to one .or both ofthe: decks tov retain the cushion in position." .Alternatively,7;the cushion. 11 may; consist of an envelope enclosing a series of short compression springs arranged in any known manner.

If desired, a further relatively thin cushion (not shown) may be provided for overlying the upper deck 2.

It is to be understood that methods and means other than hereinbefore described may be employed for attaching the tension springs to the edges or corners of the upper and lower decks respectively. Eyelets, for example, may be provided in the edges or corners of the decks to receive the ends of the springs.

Modified or alternative arrangements of springs to that described above may be provided for supporting the n tnte Sept. 13, race lower deck 3 such as shown in Figures 5 to 9. As shown in Figure 5, each corner of the lower deck 3 has an oblique tubular pocket 9 with a spreader bar passing therethrough with -.the. ends -t-hereof. protruding therebe-. yondinaa similar. mannerto. that described .above withl regard to Figures :1 to.4. A pair..ofstensionasprings. 6 each attached .at one end totoneof the. protruding ends. o the..bar..--10 extend outwardly parallelto.eachiother.

to vthe adjacent corner. of thewchair. framing .andare... anchored -at their outer .ends..on the lower lug..7b ofthe bracket-.7.

.I n the arrangement shown .inFigure 6-each.corner of, the lower. rdeck -3 is provided with an eyelet. 12..-and. .a pair-.of tensionsprings-6,:disposed .co-axially one .within. theotherp are secured at one end to.said:eyelet..12 and-. extend outwardly to the adjacent corner .ofchair frame, the-outer. ends ofthesprings 6.beinganchored .to the lower lug-r7 b of the bracket :7 in the .corner of the frame. With .-:.regard .to the arrangement shown .in Figure 7 7 .a paint-of tension springs -7 are secured :at one .end toanv eyelet 12 provided .inxeach corner ofthe lowerzdeck 3 and: extendoutwardly to theadjacent cornerv of chair, frame. The outer ends of thesprings 6 are anchored to -the lower lug 7b of the bracket 7 in the -corner of the -s frame-.-.'inispacedrelationship sothat the springs assume a V formation .and-diverge-outwardly ofsaid. corner. of the deck 3.

In-:the arrangement-shown in Figure 8 a single tension spring-6 is secured at one end to an .eyelet 12 in each corner. of the lower deck .3 and anchored at its outer end :to thelug 7b ofthe bracket 7 in the adjacentcorner of the chair frame.

The-arrangement of the tension. springs .6 shown in. Figure '9. generally similar to that described herein? before inirespect of .Figures- 1 to .4- for supporting the: lowercdeck 3, but; in addition to the springs 6, further tension springs 13 are provided, each extending from an: eyelet: 12 located on each edge of the lower deck-3 intermediate the corners-thereof to a suitable bracket or'rlug'14 located .on'each side frame member 4 intermediate the corners of the frame-structure. AlternativIely, any of the spring arrangements shown in Figures 5: toL8 may be substituted for that shown in Figure 9.- Furtheryit is contemplated that more than'one tension. spring 13.may be located between each edge of the deck 3- andadjacent side frame member 4. I

The .upper deck as applied to a quadrilateral seat framing and referred to hereinbefore, will have its edges parallelito isai'd. framing with: the lower deck similarly 1 orientated..i It will be appreciated that with a modified syst'emmriarrangementof springing the lower deck could be disposed diamondwise withrespect to the quadrilateral chair frame structure-in theregion of the seating plane. An ex-ample of this arrangement is shown in Figure 10 wherein the outer endstof springs 6 arranged as describedhereinbefore with? reference :to. Figures -1ito 4, insteadof beinglanchored. to bottom. lugs. of brackets 7 are anchored to brackets 14locatedon the side frame 'mem-. bers '4 intermediate 1 the. corners .of thetframe: structure.

Alternatively, any of the. arrangementsrofthe -corner 6 springs 6 shown in Figures :5 I to' 8 may be. substituted for supporting the lower deck diamondwise with respect to the quadrilateral chair frame structure.

Where the invention is applied to chairs or the like with seat framings other than quadrilateral, i.e. tub chairs, it will be understood that the upper deck will have an outline conforming to the particular configuration of such seat framing. In these latter circumstances, the lower deck may be .shaped similarly to the upper deck or it may be quadrilateral.

The resilientiseatingmay'be applied to a chair having any known form of back support, resilient or otherwise,'or such .seatingmay equally .wellb'e applied to a" chair in combination with'a resilient back support formed by spaced flexible decks. supported by tension springs with a cushion sandwiched therebetween in a manner. similar 'to' that "described hereinbefore'with regard to the seating.

I claim:

1. A resilient seating structure for a chair comprising an upper, deckof canvas or other flexible material of an outline congruent withthe shape of the chair framv ing in the region of the seating .plane, supported at the edges on tension springs arranged more or less parallel with the seat framing and anchoredto said framing; a

lower deck of l'canvas orother flexible material spaced vertically from and preferably of substantially less area than.the upper'deck to afiord resilient support mainly in the buttocks area and supported by tension springs radiating or. extendingoutwardly therefrom to said chair framing anda relatively thin resilient cushion of an. area. substantially confined to that of the .buttocks, secured,

sandwichwise between the. two decks.

2. A resilient seating structure as claimed in claim 1. wherein the chair framingin the region of the seating,

plane is ofquadrilateral form, both. decks are disposed within the confines of said chair framing in the. regionof the seating plane with-their edges-parallelto the sides thereof,fthe.t-ension springsysupporting the edges ofthe upper deck" are anchored .atthe corners of said chair.

framing, and the tension springssupporting-the. lower. deck radiate from the corners. thereof towards ,the.ad-. jacent cornersof "the chair. framingto which they are anchored.

V 3;"Aresilie'ntseatirig structure for a chairhaving seat framing of quadrilateralform comprising, a resilient cushion. interposed "betweenltwo vertically-spaced decks of canvas or likeflexible material,"each-resiliently supported. independently ,of the other. within-the confines of the seat.

framing, the uppermost decklhavinga quadrilateral outline correspondingjto ,theshape of the seat framing and beingsupported atits edges by tension springs anchored to .the corners .of the seat. framing to extend parallel to the .sides of said.framing,..and the lower deck having, a quadrilateral outline and being supported in diamondwise relation:to the .seatframing beneaththe uppermost deck by-tension..springs secured to.it's.corners and radiating outwardly therefrom to anchorage points on thesides. of

the seat framing intermediate thecorners of said framing.

ReferenceszCitedwin-the file'of this patent FGREIGN PATENTS I a 72,035. Switzerland Mar. 16,1916