US2681691A - Reclining chair - Google Patents

Description

June 22, 1954 P. MAURER RECLINING CHAIR Filed March 6, 1953 4 Sheets-Sheet 1 Attorney:-

.Jul me 22, 1954 Filed March 6. 1953 P. MAURER RECLINING CHAIR 4 Streets-Sheet 2MI 25 //1. w I

'lili! lnventor June 22, 1954 MAURER 2,681,691

RECLINING CHAIR Filed March 6, 1953 4 Sheets-Sheet 3 l n ve n l! o r' Pl/F? Maura/ June 22, 1954 p, MAURER 2,681,691

RECLININC CHAIR Filed March 6, 1953 4 Sheets-Sheet 4 Inventor- Pie/ M9 Mall/ e?! Z4 IID Patented June 22, 1954 UNITED STATES "ATENT OFFICE RECLINING CHAIR Pierre Maurer, Rosemont, Montreal, Quebec, Canada Claims.

The present invention relates to an article of furniture and more particularly to a sitting and reclining chair. I

The chair, according to the invention, is of the type in which the seat and the back are so mounted that when a person is leaning back in the chair, it will take a more or less reclining position with the back tilted to the desired angle and with the seat thereby elevated into a more or less raised position.

The general object of the present invention is the provision of a chair of the character above mentioned having a novel and improved construction whereby it will be comfortable either in upright position like an ordinary chair with a practically upright back or in reclining position, and wherein the back may reach a practically horizontal position to provide a semi-couch effect.

Another important object of the present invention is the provision of a system of supporting links, arms and bars for the movable back and seat of the chair wherein the number of component parts of said system is reduced to a minimum.

Yet another important object of the present invention is the provision of a chair of the character described, wherein the system above mentioned is so arranged that the back of the chair being in its normal sitting position will tilt backwards to an angle which will be in relation to the backward pressure exerted thereon supplemented by the normal forward thrust exerted on the seat while reclining to the desired comfortable position; by a reciprocal movement the chair is brought back into its normal sitting position.

Yet another important object of the present invention is the provision of a chair of the character described which is of strong and inexpensive construction.

\Still another important object of the present invention is the provision of a chair of the character described provided with a leg rest pivotally mounted at the forward portion of the chair and movable from a downwardly extending position corresponding to the upright position of the chair, to a substantially horizontal position corresponding to the limit reclined position of the chair.

Yet another important object of the present invention is the provision of a chair of the character described provided with a leg rest and in which the means for pivoting leg rest are very simple and strong in construction.

The foregoing and other important objects of the present invention will become more apparent during the following disclosure and by referring to the drawings in which:

Figure 1 is a perspective view of the chair show ing the back in upright position;

Figure 2 is a perspective view of the chair showing the back in inclined position;

Figure 3 is a perspective view of the system of links and arms of the invention;

Figure 4 is a partial cross-section along line IV-IV of Figure 5;

Figure 5 is a side elevation of the system of links and arms in the position taken when the back is upright;

Figure 6 is a side elevation of the system of links and arms in the position taken when the back is inclined.

Figure 7 is a perspective view of a second embodiment of the chair according to the invention, in upright position.

Figure 8 is a perspective of the same chair in inclined position.

Figure 9 is a side elevation of the system of links and bars provided in the chair in the position according to Figure 7.

Figure 10 is a side elevation of the system of links and bars shown in an intermediate position; and

Figure 11 is a side elevation of the same system of links and bars shown in the position taken when the chair is in fully reclined position.

Referring now more particularly to the drawings in which like reference characters indicate like elements throughout, the invention comprises a chair body I of any suitable shape or character, and provided with arm rests 2 on the sides thereof. The body I forms a rigid frame on which theseat 3 and the back '4 are mounted by means of a system of links, arms and bars described hereinafter.

Theseat 3 andback 5 are preferably upholstered and may be finished in any manner or style.

Theseat 3 has arigid frame 3 to both lateral sides of which are secured ahorizontal angle bar 5 by means of screws 6. A horizontal support bar l is secured to thechair body 5 by means ofscrews 3 on each side of said chair. Front and back links 9 and ID of equal length are pivoted at their upper ends to the support bar I as at H and 12 respectively and at their lower ends to theangle bar 5 as at it and Hi respectively. Thus thearrangement comprising members 5, I, 9 and ill forms a deformable parallelogram which when actuated causes theseat 3 3, which is secured tobars 5, to move forwardly and upwardly.

The back of the chair has a rigid frame i5 on both sides of which is rigidly and longi-- tudinally secured a bent bar it which is removably but rigidly mounted. on an arm I? in the following manner: a locking lug i8 projects outwardly from thebar 16 to engage therecess 69 made at the upper end of the arm ii and abolt 20 secures the lower end of the bent bar it to the intermediate portion of the arm ii.

The arm ll extends downwardly and forwardly from the back frame i 5 and its lower end is connected by the pivot 2i to the upper end of a right angle triangular frame comprising theupright member 22 andinclined member 25 secured at their lower ends to thehorizontal angle bar 5 at 25 and M respectively. The upper end of theupright member 22 forms astop lug 25 adapted to abut the top of the support bar '3 in the lowermost position ofangle bar 5.

Asupport member 26 is pivoted at its lower end on the pivot is of the support bar i and at its upper end to the upper portion of arm i'] as at 21.

It will be understood that the pivot 2'! forms a movable axis for the back i, that is, saidpivot 2! will move forward as theback 5 pivots around it to take an inclined position. The pivotal reclining movement of the back t about thepivot 2? will cause arm H to pull upwardly on thetriangular frame 22, 23 thereby causing the forward. and upward movement of thelower angle bar 5 and its associatedseat 3.

Thelink 50 is provided with astop lug 28 for abutting the underside of support bar i .when the chair takes its inclined limit position.

The various links, bars and arms forming the mechanism according to the invention, are suitably ofiset as shown at 29, 30, Si, 52, 33 and 35 to allow a suitable clearance between themselves and the frames in order that they may accomplish their individual movement without inter ference.

The point ofattachment 25 of theupright member 22 to the horizontal angle bar constitutes a balance point which changes at all positions of the seat'3 and back it.

It will be understood that during the forward movement of theseat 3, the arm i'l becomes more and more horizontal whereby a progressively increasing thrust is needed to progressively incline the back t.

Thus the chair, according to the invention, will assume automatically any desired inclination depending on the degree of backward or forward thrust by the occupant of the chair.

Figures 7-11 show another embodiment of the chair according to the invention which is pro-- vided with an articulated leg rest. In this embodiment, 55 indicates the body frame, 5i the arm rests rigidly secured to the body frame, 52 the back frame, 53 the seat supported by the seat frame 53' shown in dotted line Figures 9 and'll, and thenumeral 54 indicates the leg rest mounted at the forward end of the chair and capable of a complex pivotal, forward and up ward movement from an inoperative downwardly extending position shown in Figure takenwhen the chair is in upright position, to an elevated substantially horizontal position aligned with theseat 53 andback 52, as shown in Fig. 8, taken when the chair is in reclined limit position.

The second embodiment of the chair according to the invention is provided with a system of links and bars disposed on the each side of the seat andback frames 53 and 52 respectively. Each system of links and bars comprises a firsthorizontal bar 55 rigidly secured to anarm rest 5| and a second substantiallyhorizontal bar 56 disposed underneath thefirst bar 55 and rigidly secured to and supporting theseat frame 53. Thesecond bar 56 is suspended from thefirst bar 55 by means on aback link 5! andfront link 58. Thebacklink 51 is pivoted at 59 to the rear end of thefirst bar 55 and at 60 to the rear end ofthesecond bar 56. Thefront link 58 is pivoted at Bl to the forward end of thebar 55 and at 62 to the forward end of thelower bar 56.

Although the corresponding parts of the first embodiment were shown as a deformable parallelogram, it will be understood that said arrangement may be a deformable quadrilateral system such as shown in the second embodiment. In this case, thelower bar 56 is shorter than theupper bar 55 while thefront link 58 is'shorter than theback link 51. Thus when the chair is in upright position as shown in Figure 9, thelower bar 55 will be slightly inclined relatively to the horizontal. But in order that thelower bar 56 may raise to its upper limit position shown in Figure 11 at the same level as that of theupper bar 55, it is necessary that the sum of the lengths of theupper bar 55 andfront link 58 be equal to the sum of the lengths of thelower bar 56 andback link 51.

Astraight bar 63 is rigidly secured to theback frame 52 at the lower forward end thereof while a straight support arm E i is pivoted at 59 to the rear end of theupper bar 55 and at 55 to the rearupper end of thebar 63. Aside arm support 66 is rigidly secured at 51 to thelower bar 56 near the pivot and extends upwardly at an angle with said lower bar to be pivotally connected at itsupper end 68 to theback frame bar 63.

Referring to Figures 9 and 11, will be apparent that thepivot connection 55 forms a movable axis for theback frame 52, and will 7 be displaced forwardly upon reclining movement of the latter whereby thelower edge 69 of theback frame 52 will remain in contact with therear edge 15 of theseat 53 during reclining movement of the chair and despite the fact that the seat moves forwardly during said reclining movement.

Theleg rest 54 is mounted on the chair "as follows.The'front link 55 extends downwardly from thelower bar 55 as shown at i! and its lower end is pivotally connected at i2 to a substantially horizontal short bar E3 the'rear end of which is pivotally connected at id'to a short link i5 extending parallel to the front link extension H and pivoted at its upper end it to thesecond bar 55. Thus the system comprising thebars 56 and 13, and the links and H COl'l-r stitute adeformable parallelogram whereby thelower bar 13 will be displaced forwardly and upwardly upon reclining movement of the chair.

In the limit reclined position of the chair, thethird bar 13 will be aligned with thebars 56 and 55 as shown in Figure 11. 7

An upwardly extending arm T is rigidly secured to the short bar is and is reinforced by thediagonal brace 18 welded at its upper end to the arm T! and at its lower end to the short bar Theleg rest 54 1s provided on both sides thereof with crankarms 19 extending longitudinally thereof and each pivoted at 80 to the upper end of the arm 11'. Thecrank extension 8! of the said arm Z9 is pivotally connected at 82 to the upper end of alink 83 which is pivoted at itslower end 84 to thelink extension 1!.

Upon reclining movement of the chair, theleg rest 54 will describe a complex movement from the down inoperative position shown in Figure 9 to a substantially horizontally elevated position shown inFigure 11. During this complex movement, theleg rest 54 moves forwardly and upwardly and at the same time pivots around themovable axis 80. Therefore theinner edge 85 of said leg rest will move from a position underneath theforward part 86 of theseat 53 when in inoperative position, to a position aligned and adjacent to saidforward part 86 as shown in Figure 11.

While a preferred embodiment according to the invention has been illustrated and described it is understood that various modifications may be resorted to without departing from the spirit and scope of the appended claims.

What I claim is:

1. In a sitting and reclining chair, a body frame, a seat frame, a back frame pivoted on a movable axis, the latter being movable relative to the body frame by the backward tilting of the back frame, and a pair of side units hung on the body frame, one at each side of the chair for supporting the seat frame and back frame for movement from a sitting to a reclining position, automatically, by pressure against the back, each unit having links pivotally connected to said seat and body frames for suspending said seat frame from said body frame, an arm which is rigid with the back frame, a support pivoted at said movable axis on the upper and rear portion of the arm, said support pivoted at its lower end at the rear end of said body frame, and a member rigidly secured to said seat frame and to which the front and lower portion of said arm is pivotally connected whereby said pivotal point of said arm to said member is stationary relatively to said seat frame and pivotal movement of said arm about said movable axis will cause said arm to displace said seat frame.

2. A sitting and reclining chair, having a body frame, a seat frame and a back frame, said seat frame mounted on said body frame for forward r and upward movement, said back frame mounted on said body frame for tilting backward movement when reclining from normal sitting position and reciprocally for return movement, a

first bar on each side of said body frame and secured thereto, a second bar on each side of the body frame secured to said seat frame, links pivotally connecting said two bars for suspending said seat frame from said body frame, an arm rigidly secured to said back frame, a member rigid with said second bar, said arm pivotally connected at its lower end to said memher, a support arm pivotally connected at its lower end to the back end of said first bar and at its upper end to the upper portion of said back frame arm whereby said last mentioned pivotal connection forms a movable axis for said back frame and tilting of said back frame causes movement of said movable axis and corresponding movement of said back frame arm and forward and upward movement of said seat frame.

3. A sitting and reclining chair as claimed inclaim 2 including a leg rest mounted at the forward end of said seat frame for pivotal movement from a downward position corresponding extending support rigidly secured to said third bar, said leg rest being pivoted to the upper end of said support and a link pivoted to said leg rest at a point spaced from its pivot connection to said support, said last named link pivoted at its other end to one of said links, whereby forward and upward movement of said seat frame will cause forward, upward and pivotal movement of said leg rest from said downward position to said substantially horizontal position.

5. A sitting and reclining chair as claimed inclaim 4 wherein said second and third bars form a deformable parallelogram, and further including a diagonal brace rigidly secured to said leg rest support and to said third bar.

6. A sitting and reclining chair as claimed inclaim 5 wherein the links connecting said first and second bars have unequal lengths and said first and second bars have also unequal lengths.

7. A sitting and reclining chair as claimed in claim 6 wherein the sum of the lengths of said first bar and one of its connecting links is equal to the sum of the lengths of said second. bar and of the other of said connecting links.

8. A sitting and reclining chair, having a body frame, a seat frame and a back frame, said seat frame mounted on said body frame for forward and upward movement, said back frame mounted on said body frame for tilting backward movement when reclining from normal sitting position and reciprocally for return movement, a horizontal bar on each side of said body frame and secured thereto, a second horizontal bar on each side of the body frame secured to said seat frame, links pivotally connecting said two bars for suspending said seat frame from said body frame, an arm extending downwardly and forwardly from said back frame and rigid therewith, a frame rigid with said second bar, said arm pivotally connected at its lower end to said frame, a support arm pivotally connected at its lower end to the back end of said first bar and at its upper end to the upper portion of said downwardly extending arm whereby said last mentioned pivotal connection forms a movable axis for said back frame and tilting of said back frame causes forward movement of said movable axis and corresponding forward and upward movement of the front portion of said downwardly extending arm and forward and upward movement of said seat frame.

9. A reclining chair comprising a body frame, a deformable parallelogram arrangement disposed on each side of said body frame and comprising an upper horizontal member secured to said body frame, a lower horizontal member movable upwardly and forwardly respectively to said body frame, and a back and a front link pivotally connecting said upper .and lower horizontal members, a seat frame secured to said lower horizontal member, a back frame, an arm rigidly secured to said back frame and extending downwardly and forwardly therefrom, a support arm pivotally connected at its lower end on the pivotal connection of said back link and. of said upper horizontal member and at its upper end to the upper portion of said downwardly extending arm, a triangular frame secured to said lower horizontal member and rigid therewith, the lower end of said downwardly extending arm being pivotally connected to the apex of said triangular frame, said apex lying substantially at the level of said upper horizontal member when said lower horizontalbar is in its downward limit position and lying intermediate the ends of said deformable parallelogram.

10. A reclining chair as claimed in claim 9 further comprising'a stop lug at the apex of said triangular frame to abut said upper horizontal member in the downward limit position of said lower horizontal member.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,240,850 Knabusch May 6, 1941 2,276,053 Luckhardt Mar. 10, 1942 FOREIGN PATENTS Number Country Date 196,317 Switzerland June 1, 1938

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