Title:
Reclining chair
United States Patent 2479175


Abstract:
- 1 'This inverintibh'i rlates to -an article :of furniture, :aind more particularly 'to a chair of the -iecinirig type having hiiproved tAtrtctural 6haradti6 stics and having parts so arranged to perfittf o;gteater cdmfbirt'tto the 'luser and ready -adjuostiility dof ithe sbat and back within...



Inventors:
Warren, Mcarthur
Application Number:
US68966046A
Publication Date:
08/16/1949
Filing Date:
08/10/1946
Assignee:
RECONSTRUCTION FINANCE CORP
Primary Class:
International Classes:
A47C1/032
View Patent Images:
US Patent References:
1744666Bench1930-01-21
1366943Seat1921-02-01
1212808N/A1917-01-16
1117979N/A1914-11-24
0812051N/A1906-02-06
0780771N/A1905-01-24
0656161N/A1900-08-21



Foreign References:
GB203012A1923-09-06
Description:

- 1 'This inverintibh'i rlates to -an article :of furniture, :aind more particularly 'to a chair of the -iecinirig type having hiiproved tAtrtctural 6haradti6 stics and having parts so arranged to perfittf o;gteater cdmfbirt'tto the 'luser and ready -adjuostiility dof ithe sbat and back within -a relatiWvely wide irange ':-of increments -of 'rerline ffdm "uptig-ht'lto' ful:' recie'"pitil . . in f'he iusiil type of reclining -chair, the back is pivad axbout a 'iixbed axis interfediate its top 'arid -B'ttom, kandd the rear'end 'of the- seat is in turn pivoted ld';tb 'h:jck below thiis-'fiXed -axis.

As a result of this arranemenft, whedn the back is filte tii ~i "u~ iht isithn"'to '"ful recline positidn," 'thbe sea't s otI'ohnly .iriovetd iforwkard but The rear 'porti'on ther4 is raised upwardly a theitn dsf to urge the occupant of fhe seat forwadaly 'ari da *'utof tile 'seat. This'is -highly -bjetioable t has- the occailýdt, insteda of securing coihfort 'and being 'ablt o rIax, .'is :'fteritimes subject to *discomidbrt ahfd -nirvus :sfailn, especiailly 'it die-ccflpant attefiPtstb -use the chair ini a recline positili i fr ianhextended period of time. This is particularly the asein ianiy reclining chairs that lave' heretofdre 'bteen'Used in dirplanries-, ilroarid bars, ubeses arid ''ther means of 'tranpspfttitt6h. ..t. 'The ' redlirfii g ~Chair of this invefition h bviates riTaIy "f 'be 'ifflcultle's hiex ehgcedd in'the past arid affords a-rntuinber 6f 'itepdtidved p feature - 'ad distinct 'advartages. FoIr 'i e thing, 'my eclining chair has the back -and seat so arrangdd, With respedt -"to6 adh dthbier -aidd to. a 'suippot frame, that fas 'tbhe l iaihr is ai'tstd re' rs u bprihkt to Vaeis'idges -6fe , th6f e litear of elicy '6 'the *bcdipa't 'to "sild frw'a'rd and out 'of elowr pOtioh b6iAfthe back 'aihd the "tesar erid of thie seat'I to IfIt6vei' t hiijiri ilo'0rg 'a preferably arcuate T'ath. d'eined. by' ' track 'a"6dd_ roller arranigemerit, 'as distngtiisned *iWroi the 'construiction -emiployed in 'the jpas't whe'rin the :back is pivo ted 't6he t bit'"'fale -abfolut" 'f'ixed 'axis.

The chair d'ot' .t1 ihentzidht 'prefei'ably 'coinprise's 'a; support hrahe incldihig a pDair -of- slde frames that are -Waiftaiteii d in sp'abed-apaiAt relation by a faonit 'aid a .ta-t'sratfchetr. Secured to each *id& 'iramii e -a'id exteidii'g upw ardy therdfrm is.'a plata havi'gt a adowhViwýdadd f orward, -pteferabl& 'tfuah 's-i6t that 9erves as a tra6k. The seat issIdabe' f'rWat'dly arnd ýrearwar dly aloritbn the' fbObnt'shttehier- ahid is 'pr6vided at its -tea - wih a p-ar 6 laterally iptojiecti'tirgollets Iha t dgiteit * te 'plte slots anA i-iVe S2 along the p0ath 'defin'ed thereby. 'The'lbick;'is pivotally cofiriecteddifto the Tear of the:'Sat abOttt the 'axis * . f the *seýat fo6lets. -The 'back cafies a pair '6f :rolldrs disposed -"above the seat Trllefs i and registering with the plate slots aid-miiieble along thepath- defihedl.y '-thl e sl8t. -Thus, "as the back is -tilted frbdimui'ight'to ':ftltredIiie-.PoSititn, it moves forward of the position itý ould Atitain if lit V-Wre tiiifd rdt6 ihO-h,§fpiortt 'fraihe 'abbit` a 10 fixed axis. Thiss'is an iimprtafiit faftire-"a'fd 'is articoeladly advantageofts iff-tie chair is-etd .fin airplanes or the like, where one seat isefi1Utiedi close toi the ear 'df sat thrnt'of it fto'beiomiie bon 'pae, 'esince'the tobp 6f th e taidk 'Will Tdt 15 project so far reaTwardly 'Wýldh'-lin reline-:positio, :as 'Would 'be th ce ithse 't diveiirni' eclining chairs.

'The slodts 'in thIe plats 'iartied 'by Tihe 'dgie frames extend '-frt h fife forward ledge 6f th! eb 20 plate to the topk ege týieredf b6 eas to 6 erit'the reihoval 'bf both the badk: aii eiat :t'bay :.a'fie upward movement. A removable JlifgWito-h' the upper pOrtfoh -oIf 'oe :ri -'op6th ' jf 'te ' fsd ths' is as a '8top to alirnit'rearward inovem~ent of The bdik 25 and seat, while an elembnrt ssciated Withi :rai able chaii 'iloi-ng -meidofiii'io h tefiits f6iwýai movement of the seat and, thereforte, ':f e 'ba6k.

Andother feature of yii 'cifnirig 'chalirh cnstruction redesie's in:affoltdirig adeflua.tersade for 30 the legs and feet 'of "a pjbrsdn 'seatd- to the 'rea~ of 'the chair. The track and rbler 'arangemenit eliminates 'the possbilffity 'of the ipersoid's lijas being iniured in the "course df Wij'yiffg -th ebTlt-r e of a chair under which his feet mar 'be d:t6eded. 35 Also, the clearance between the under side of. the chair seat arid the 'flOor is at-a 'maxinmumi to 'provide storage 'space, as inma be reqfifred.

An additional feature lies in the proviibn -ofi-a resilient mechanism for 'nrmally urging t'e seat 40 and back from reclihe positiobis'b tothe relafive position assumed by the seat anda bk when 'the back isin "upright postioi." 6 ;This indchiafismenables an occupant to'return the seat arnid batik to the upright 'or nroni-recline, 'position with very 45 little effort on his part. Furthermore, this rmechamnism does not appreciably hirinder the i'cculant in 'adjusting the seat from upright to any iie of the desired recline positions.

It 'is accordingly the principal objIect-of. this 50 invention to provide a reclining: seat whiereini the back, seat and support frame Iare 'so arange'd.U's to afford requisite 'comfort to the occdpant regardiess of the degree of re'line of the back with respect to a Vertical plane.. ...

55 Aother 'object -of the invention is to provid' a reclining chair wherein the parts are so arranged as to allow adequate room for the feet of an occupant seated in a chair to the rear. This is especially desirable in transportation seating and in close seating arrangements.

Another object of the invention is the provision of a reclining chair having an adjustable seat and back that may be readily removed as a unit from the frame of the chair.

This invention has for a further object the provision of a chair of the character indicated wherein the seat and back are adjustable in unison along a generally downward and forward path.

A still further object of the invention is to provide a reclining chair that is characterized by its simple design, staunch construction, and light weight.

The foregoing, as well as other objects and advantages, will be readily understood by persons skilled in the art upon reference to the following detailed description, taken in conjunction with the annexed drawings, which respectively describe and illustrate preferred embodiments of the invention.

In the drawings, wherein like reference numerals denote corresponding parts throughout the several views: Figure 1 is a front elevational view of a reclining chair constructed in accordance with this invention, parts being broken away for better illustration; Figure 2 is a view taken along line 2-2 of Figure 1, with parts broken away and other parts omitted, and illustrating the relationship of the parts when the back and seat are adjusted to "upright position"; Figure 3 corresponds to Figure 2 and illustrates the relationship of the parts when the back and seat are adjusted to "full recline position"; Figure 4 is an enlarged view taken along line 4-4 of Figure 1; Figure 5 is an enlarged fragmentary view taken along line 5-5 of Figure 2, with parts broken away for better illustration; Figure 6 is an enlarged view taken along line 6-6 of Figure 2; Figure 7 is an enlarged view taken along line 7-7 of Figure 1, with parts omitted. The purpose of Figure 7 is to illustrate the devices in the mechanism for normally urging the seat and back from "recline" to "upright position"; Figure 8 is a fragmentary view taken along line 8-8 of Figure 7; Figure 9 is an enlarged view of devices employed with the locking mechanism for controlling movement of the seat with respect to the support frame; and Figure 10 corresponds to Figure 9 and is illustrative of a modification of the arrangement shown in Figure 9.

The reclining chair of this invention comprises a support frame, generally indicated by numeral 15 in Figure 1, and including a pair of spaced parallel and upright side frames 16. Each side 0 frame includes a front leg 17 and a rear leg 18 that are joined together at the top by a brace 19. Legs 17 and 18 and braces 19 are preferably made of magnesium tubing elements that are rectangular in cross section to obtain requisite strength and rigidity and to provide light-weight construction. Proximate the forward end of each brace 19 and secured thereto in any desired manner is an inverted U-shaped member 20, to which the opposite ends of a front circular tubu- 1 lar stretcher 21 are affixed. A rear tubular stretcher 22, preferably elliptical in cross section (Figures 4 and 7), is connected to the rear portion of each brace 19 through the medium of an attaching plate 23 and rivets or the like 24, as is best shown in Figure 4.

Secured to each side frame 16 and projecting thereabove, is an arm rest 25 that includes an upstanding tubular frame 26 and that is provided with the usual padding material (not shown) and is covered with a suitable upholstery fabric 27 which extends under each brace 19 and spans the space between these braces, as is indicated in Figures 1 and 2.

As is best shown in Figures 4 and 5, each side frame also includes an upstanding metal plate 30, mounted against the inner vertical face and at the rear portion of a corresponding brace 19 through the medium of a series of rivets 31 and rivets 24, earlier mentioned. Each plate 30 is provided with cutouts or aperturess 32, 33 and 34 for effectively reducing the weight of the plate without impairing its strength or rigidity.

Formed in each plate 30 is an elongated downwardly and forwardly extending arcuate milled slot or groove 35 that is preferably of C crosssectional configuration and that serves as a track for rollers, as will be hereinafter described in greater detail. It will be noted from an examination of Figure 4 that each slot 35 is open to the inner face of its plate 30, and further that each slot extends from upper edge 36 to forward edge 37 of a corresponding plate 30.

The seat 40 of the chair of this invention in3n cludes a seat frame that is preferably fabricated from tubular magnesium members consisting of a front tubular member 41, a pair of spaced side tubular members 42 and a rear tubular member 43. As is shown in Figures 1, 2,3, 5 and 7, front and side tubular members 41 and 42 are square in cross section, while rear tubular member 43 is circular in cross section. These tubular members are welded together to obtain a rigid lightweight seat frame.

4. Attached to each side tubular member 42 is a member 45 including a depending flange or rail 46 and carrying a rack 47 having an integral rear upward extension or stop .48 (Figures 1 and 9).

Seat 40 may be equipped with any desired known 60 type of spring construction and padding material (not shown) an is covered with an upholstery fabric 49.

A locking mechanism 50 is mounted on support frame 15 and coacts with racks 47 to control for5~ ward and/or rearward movement of seat 40 with respect to the support frame. This locking device may include a pair of brackets 51 attached to front stretcher 21 by bolts 52. Rotatably supported in each bracket 51' is a shaft 53 that carries a cable drum 54 and a pinion 55 at its inner and outer ends, respectively. Each pinion 55 meshes with a corresponding rack 47. A bolt 56 is mounted in each bracket 51, below and in parallel relation to a corresponding shaft 53, and 15 carries a peripherally grooved roller 57 along which rail 46 is arranged to ride. A control lever includes a horizontal portion 60, that extends through and is rotatable in brackets 51, and an upwardly extending portion 61 positioned adro jacent the outside of one of the side frames 16 and that has an actuating hand grip 62 at its free end. A pair of spaced pulleys 63 are attached to lever portion 60 by bolts 64, as is best shown in Figures 1 and 6. A flexible cable means '5 is wrapped one or more turns about each cable drum. 54- and:passes under each pulley-63;. Apin 6tir(iFigures:2:and'9)-, projecting upwardly from, portion 60 oof the: control lever, is connectedto.: bolt- 5f. by a:helical; spring 67.; This-spring is: in: tension: and: tends to'normally urge :the control :5 lever: in a clockwise, direction (Figure 1) to thereby place flexible cable means 65;:in tension and- effect -snubbing:.. engagement, of the cable, means with the cable drums. Locking-device 5:01 may be'the same as or. similar to the correspond- 1( ing mechanismi disclosed; in my pending, application':Serial No. 664,184, filed: April 23, 1946, to. whichreference may be had for details of construction and operation but which has become abandoned. 1 As is- best shown in Figure 9, the front end of flange. or rail 46 :is inclined forwardly: and upwardly, while the front end of. rack 47 is- inclined forwardly and downwardly to permit their-ready mountinig on roller 57andi meshing with pinion 2 55, respectively. In Figure 2, the seat 40 is shown at its rearwardmost position,. pinion 55 being in-.meshing engagement with, the. forward por tion of rack 47. When the seat is in, the position illustrated in Figure 3, stop. 48 bears against 2 pinion 55, thereby-restraining the seat against further forward movement.

A'back 0T (Figures 1, 4 and 5) includes a frame consisting of an inverted U -shaped tubular member 7 I, having the lower portion of each arm bent forwardly, and a. cross tubular member 72 welded together: The back is preferably -provided with suitable springs (not shown) for added: comfort and :is covered with an upholstery fabric 73M The lower portion 74 of each arm of tubular member 71 is slitted and depressed, as indicated in Figure 5, to receive a bar 75 that is. rigidly attached theretodby a bolt 76,. a nut 7:, and- asleeve: 8 having a flange 79, a bolt 80, and a nut 81. Portion 74 of each arm is provided with an aperture 82 to permit a wrench or other tool to be inserted within the tube for the manipulation of nut 81.

Each bolt 80 carries at its outer end a roller 83 that is adapted to register with slot 35 in a corresponding plate 30 and ride along the track defined by this slot in the plate.

The lower portion of each bar 75 extends below the back frame and is pivotally connected to the rear of the seat through the medium of a sleeve 84 having a flange 85, a plug 86 suitably anchored within rear tubular member 43 of the seat frame, a bolt 87, and a nut 88. A roller 89, that may be the same as roller 83, is rotatable about the common axis of bolt 81 and sleeve 84 and is adapted to register with and ride along the track defined by the slot 35 in a corresponding plate 30.

A cap plug 90 is positioned in the upper end of each slot 35 and is removably attached to plate 30 by a bolt 91 and a nut 92. Plugs 90 serve as stops to limit upward travel of back 70 and to prevent accidental removal of the back and seat from the support frame. It will be apparent from a consideration of Figures 2 and 5 that upon removal of cap plugs 90, back 70 and seat a0 may be removed from the support frame in unison by merely pulling upwardly on the back itself.

Reference is next had to Figures 7 and 8 for details of construction of a mechanism for normally and yieldingly urging seat 40 and back in the direction of upright position. This mechanism includes a sleeve 95 concentric with front stretcher 21 and having an integral depending bifurcated bracket 96. A first tube 97 is provided with a pair of diametrically opposed longitudinal slots 98, only one of which is shown in the drawings; andisipiotllly connected at: its forward, end.d t.rbracket '9.6.by a bolt 9K9 A. second tube 1_00, is ; telestGopically arranged -with respect to, first tube 917T and isiprovided at; its rear end :withb asemi-cylindrical. yoke 10 1 that receives and bears against- rear tubular member 43 of the seat frame. : A threaded pin 102 extends through the forward end of:. tube I-O and, projects through and' beyond : slots;.,9.8 in tube6 91. A nut 1,0.3 is provided on. 0 opposite sides of tube 91 to restrain pin 102 against axial movement. A pair of pins 05, only oner oi which is shown in Figure 7, projects: through rear stretcher 22 and is connected, to, opposite ends of pin:::03 by corresponding helical. springs: 106. Springs. 106 are stressed in tension and-tendto: maintain yoke 10 1 in readily detachablecoupling engagement with seat frame member 43 and urge the seat 40,rearwardly. A curved leaf spring 101; attached to bracket 96 and posio tioned beneath and along tube 97, serves.to maiqntait telescoping tubes 97 and 100, in the position. shown in Figure 7 against the. action of, springs: 106.I;wheen ,theseat 40 -and back 70 are removed from;, the, support frame, so that yoke 101 will : be in-positionto: again receive seat frame, member 43 when the seat and back are again mountedin slots: 35 of plates. 30 Additionally, spring 10elimnates the, possibility of binding action be-, tween mtubes 91 and !'0 when they are in the relammr tive. position shown in Figure 7.; It:will be: noted that tube 100 is- shown extended with respect to: tube: 91 in Figure 7, which is illustrative of the,: relative position of the, parts, due. to the action of springs 106. when the back and seat rare i5 in-upright- position (Figure 2).

In.thie embnodirment of the invention shown in Figres: 1, 2, 3 and 9, member, 495: and rack 41 are parallel: to side tbular members 42 of the seat frame. As the;seat and back are adjusted.

i0 from upright position (Figure 2) to full recline position (Figure 3), the front of the seat moves both forwardly anad upwardly.

In Figure 10, member 45 and rack 41 are shown inclined downwardly and forwardly with respect 45 to side tubular member 42 of the seat frame.

When the seat and back are adjusted from upright to one of the recline positions, this arrangement permits the front of seat 40 to move forwardly and horizontally or downwardly, depend50 ing upon the angle of incline between the seat frame and member 45. It will be apparent that member 45 may be disposed at any desired angle with respect to side tubular members 42 of the seat frame so as to raise or lower the forward .. portion of seat 40 with respect to the support frame when the chair is in a recline position.

From the foregoing, it is thought that the objects, construction, operation, and many advantages of the herein described invention will be 60 apparent to those skilled in the art, without further description; and, it will be understood that various changes in the size, shape, proportion and minor details of construction may be resorted to without departing from the spirit, 65 or sacrificing any of the advantages of the invention.

I claim: 1. In a chair construction, a support including a pair of spaced side frames, a track carried by each 70 side frame and defining a generally downward and forward arcuate path, a seat, a back having its lower portion pivotally connected to the rear portion of the seat, means supporting the upper portion of the back and a roller secured and dis75 posed to each side of the seat and rotatable about an axis that is substantially coincident with the axis of the pivotal connection between the seat and the back, each roller engaging a corresponding track to permit simultaneous movement of the rear portion of the seat and the lower portion of the back along the path defined by the tracks.

2. In a chair construction, a support including a pair of spaced side frames, a track carried by each side frame and defining a generally downward and forward arcuate path, a seat, a back having its lower portion pivotally connected to the rear portion of the seat, a roller attached to each side of the seat and rotatable about an axis that is substantially coincident with the axis of the pivotal connection between the seat and the back, and a roller secured to each side of the back intermediate the top thereof and the pivotal connection between the seat and back, the rollers on each side of the seat and back engaging a corresponding track to permit simultaneous movement of the seat and back along the path defined by the tracks.

3. In a chair construction, a support including a pair of spaced side frames, a track carried by each side frame and defining a generally downward and forward path, a seat having its forward portion slidably mounted in the forward portion of the support, a back having its lower portion pivotally connected to the rear portion of the seat, a roller attached to each side of the seat and rotatable about an axis that is substantially coincident with the axis of the pivotal connection between the seat and the back, and a roller secured to each side of the back intermediate the top thereof and the pivotal connection between the seat and back, the rollers on each side of the seat and back engaging a corresponding track to permit simultaneous movement of the seat and back along the path defined by the tracks.

4. In a chair construction, a support including a pair of spaced members, each member having grooves formed therein, said grooves being disposed in opposing substantially parallel relationship and defining a generally downward and forward arcuate path, a seat, a back having its lower portion pivotally connected to the rear portion of the seat, a roller attached to each side of the seat and rotatable about an axis that is substantially coincident with the axis of the pivotal connection between the seat and the back, and a roller secured to each side of the back intermediate the top thereof and the pivotal connection between the seat and back, the rollers on each side 1.5 of the seat and back registering with a corresponding groove to permit simultaneous movement of the rear portion of the seat and lower portion of the back along the path defined by the grooves.

WARREN McARTHUR.

REFERENCES CITED The following references are of record in the file of this patent: 25 UNITED STATES PATENTS Number 656,161 780,771 812,051 1,117,979 1,212,808 1,366,943 1,744,666 Name Date Bennnett ------- Aug. 21, 1900 Axelrad _-_______ Sept. 20, 1904 Lanagan ---------July 26, 1905 Cromer __________Nov. 24, 1914 Pepper ----------- Jan. 16, 1917 Rider------------- Feb. 1, 1921 Newsom -------__ Jan. 21, 1930 FOREIGN PATENTS Number Country Date 203,012 Great Britain ______ Sept. 26, 1923