US2764224A - Reclining chair with foot rest articulation - Google Patents

Reclining chair with foot rest articulation Download PDF

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Publication number
US2764224A
US2764224A US404685A US40468554A US2764224A US 2764224 A US2764224 A US 2764224A US 404685 A US404685 A US 404685A US 40468554 A US40468554 A US 40468554A US 2764224 A US2764224 A US 2764224A
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frame
arm
rest
link
seat
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US404685A
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Maurer Pierre
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Maurer Pierre
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    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C1/00Chairs adapted for special purposes
    • A47C1/02Reclining or easy chairs
    • A47C1/031Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/035Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest in combination with movably coupled seat and back-rest, i.e. the seat and back-rest being movably coupled in such a way that the extension mechanism of the foot-rest is actuated at least by the relative movements of seat and backrest

Description

Sept. 25, 1956 P. MAURER RECLINING CHAIR WITH FOOT REST ARTICULATION Filed Jan. 18. 1954 3 Sheets-Sheet 1 Pie/212e /lJazz/vef7 Sept. 25, 1956 P. MAURER 2,764,224
RECLINING CHAIR WITH FOOT REST ARTICULATION Filed Jan. 18. 1954 3 Sheets-Sheet 2 Pier/fe /llazz/Qe/9 Sept. 25, 1956 Filed Jan. 18. 1954 P. MAURER RECLINING CHAIR WITH FOOT REST ARTICULATION 3 Sheets-Sheet 3 Inl/enfer Piep/fe M azz/9491Q nEcLiNING cHnrRwITH Foor REST AnrmULArroN Pierre Maurer, Rosemount, Montreal, Quebec, Canada Application January 18, 1,954, Serial No. 404,685 Claims priority, application CanadaJanuary 2 8, 1953 Claims. (Cl. 1557106) The present `invention relates to an article of furniture and more particularly t'o a sitting and reclining chair of 4the kind in which the seat and back are so mounted that they provide a counterbalaneing effect so that by leaning back in the chair a person may stretch into a more or less reclining position with the back tilted backward to the desired angle and with the seat thereby elevated into a raised horizontal position.
The general object of the presentinvention is '111 Provision of a chair of the character described having a novel and improved construction and arrangement whereby the back rest of said chair may be reclined smoothly and without effort from a substantially upright limit position to a fully horizontal or even past horizontal limit position. In the latter position, the seat is partly blocked and a downward pressure has .to be exerted on the foot rest or a backward pressure has to be exerted on the yseat to cause the back rest to Areturn from its horizontal limit position. Itis possible to use the chair, according 4to the invention, as an ordinary upright 4chair without the back rest taking an undesired inclined positionand at the same time it will be possible `to use this reclining chair as aV more or less inclined position depending on the .inclina tion of the back rest.
Still another object of the present invention is the provision of a chair of the character described which 4may be used without a foot rest and still be comfortable due to the fact that only a small vertical movementof the `seat is needed for the back rest to assume a maximum reclined position whereby the person using the chair may assume a relaxed reclined position lwhile having his feet still resting on the floor. This constructional feature adds to the utility of the chair in small apartments or limited space.
Yet another important object of the present invention is the provision of a chair of the character described which is very simple in construction having a minimum ol' links and bars.
Still another important object of the present invention is the provision of a chair of the character described in which the lower edge of the back rest and the back edge of the seat will always remain close together independently of the relative angular position of the back rest and seat. Y
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:
rates Patent ff 2,764,224 Ice Eeeated Sept 25, 1.9556
Figure l yisa perspective View of the chair with the'back rest in upright position;
Figure 2 is a perspective viewrof thechair with the back rest in 4horizontal -reclined position and the foot rest in horizontal elevated position;
Figure 3 is a section along line 3-f3 of Figure 6;
Figure 4 is a cross-section ofthe chair showing `the manner of suspending the seat;
Figure -5 is a longitudinal section of the chair showing `a side1view of the link arrangement when the `back rest is in upright position; and
Figure 6 is a longitudinal section ofthe chair showing a side View of the link arrangement when the back rest is in reclined position.
Referring now more `particularly to the drawings in which like vreference characters indicate like elements throughout, the chair body 1 is kpreferably provided with side arm rests 2 and forms a rigid frame on which the seat 3 and back rest 4 are mounted by means of a system of links, arms and bars described hereinafter.
The seat 3 and back 4 Aare preferably upholstered and may benished in any manner or style.
Furthermore, a foot rest 5 .is mounted for pivotal movement at the forward end of theseat 3 so that it may take a .vertical position, as .shown in Figure 1 resting against thefront face of the c hairbody 1 and an elevated horizontal position, as shown in. Figure 2, aligned with the top face of the seat 3.
A horizontal lower support bar 6 is secured to the chair body .1 on both sides thereof and is provided at its intermediate portion with an upright stop member 7 adapted to abut a .rubber pad 8 depending from -an upper horizontal angle bar 9 supporting Vthe side lboards 3'` of the .seat- 3. The angle bar 9 is connected to the lower bar 6 .by `rneansof back and vfront links 10 andll at 12 and k.125, `and 30 and 37 respectively. Thus, the arrangement Iconstituted by the bars 6 and\9 and links I1.0 and 11 .formsadeforrnable quadrilateral system. The links may have `equal length and the bars may have equal length to form a ,deformableYparallelogram or one of the links and `one `of the barsrnay be .shorter than the other link and other bar respectively provided that the sum of the lengths of a bar andof a link be equal to the sum of the lengths of the other bar and of the other link. Forward ,rotation ,of the links 10 and 11 about their respective pivots 1 2 and 13 orithe lower bar 6 will simultaneously elevate the seat v3 ,and'displace it forwardly. During this movement, the seat 3 will remain in planes parallel to itself if .the .system of links and `bars is a deformable parallelograrn, but will recline slightly if the lsystem is a quadrilateral as defined hereabove.
-Qn the front llink 11 is rigidly secured by welding, riveting or the like, thestepped portion 14 of an arm 15 which is aligned with said link 11 and extends upwardly therefrom. A link 16 is pivoted at 17 to the upper end of the arm 15 yand is pivotally connected at its other end 18 to a crank lever 19 .pivoted at its upper end 20 to the Seat frame 3' and having a downward extension 21attached to a bracket 21 secured inside the foot rest 5. More particularly the lower end of the extension 21 is pivoted to the bracket 21 at-22, and a pin 23 secured kto said extension 21 .extends through an arcuate slot 23' upwardly inclined extension 24 at the rear end of which is pivoted at 25 a rocker 26 having two arms angularly extending with respect to each other. The front arm of the rocker 26 is pivotally connected at 27 to a link 28 itself pivoted at its front end to the upper angle bar 9 by means of the pivot connection 30 serving also to pivotally connect the back link 10.
An L-shaped bar 31 is rigidly secured to the lower end portion of the frame of the back rest 4 and extends longitudinally thereof. A link 32 pivotally connects the rear arm of the rocker 26 to the bar 31 by means of pivot connections 33 and 34 respectively. The lower end of a side arm 35 is rigidly secured at an angle to the link 28 and its upper end is pivotally connected at 36 to the side leg at the front end of the bar 31. Thus the system comprising the bar 31, rocker 26, link 32 and side arm 35 forms a deformable quadrilateral arrangement whereby the rocker 26 rotates in clockwise direction about its intermediate stationary pivot 25 as viewed in Figures and 6, when the back rest 4 moves from an upright position shown in Figure 5 to a reclined position shown in Figure 6.
In the limit horizontal position of the back rest 4, the links and 11 are practically vertical thereby locking the mechanism. In order to release the back rest from said position, it is necessary to apply a downward pressure on the foot rest 5 to initiate the return movement of the mechanism.
From the arrangement described it will be seen that the reclining movement of the back rest 4 will displace the link 28 forwardly whereby the seat 3 will be moved forwardly and upwardly and the foot rest 5 will be simultaneously elevated.
The back rest 4 describes a complex pivotal movement due to the fact that the side arm 35 is rigidly secured Y to the link 28 which itself pivots around the pivot 30 and at the same time is moved forwardly. Thus, as the lower edge of the back rest 4 is elevated, it also moves forwardly in such a way that a constant contact is maintained between the rear edge of the seat and the bottom edge of the back.
It will be also noted that in the chair according to the invention, the various links, bars and arms have a minimum of stepped portions and that the majority of them are straight elongated bars, thereby resulting in an inexpensive construction.
In the chair illustrated in the drawings, a dead stop 38 is secured to the bar extension 24' and limits the reclining movement of the back rest 4 by abutting the -rocker 26. But this stop 38 could be displaced along extension 24 so as to permit the back rest to assume a limit recliued position past the horizontal.
Said latter position is possible because the pivot connections 33, 27 and 30 will not become aligned until said position is reached.
It will be noted that the system of linkages according to the invention provide movement for three elements, namely: the foot, the seat and the back rest. Due to the particular construction of said system of linkages, it is possible to vary the movement of one element without having to vary the movements of the other two elements. This may be effected by changing the position o1 sizes or shapes of the bars and links associated with the element of which the movement is to be changed. For instance, links 10 and l1 may be lengthened in order to increase the upward and forward movement of the seat without changing the movement of the foot and back rests.
Similarly the location of the pivotal connections of the link 32 and side arm 35 to the bar 31 may be changed and/or said link 32 and arm 35 may be shortened or lengthened whereby the complex pivotal movement of the back rest will be varied without having to change p' the movements of the seat and leg rest.
of the foot rest without changing the movement of the seat and back rest.
lAs a result of the above mentioned characteristic of the system of linkages described, proper adjustment of the various movements of the chair is easily effected to suit the user.
While a preferred embodiment according to the present invention has been illustrated and described, it is understood that various modifications could be resorted to without departing from the spirit and scope of the appended claims.
What I claim is:
l. In a sitting and reclining chair, a body frame, a seat frame, a back frame tiltable backward relatively to the body frame, and a pair of side units consisting of links, arms and bars 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 frame, each side unit having a rocker pivoted intermediate its ends on the body frame to define two arms, a link pivoted to one arm of said rocker and to said seat frame, a side arm rigidly secured to said link at one end and pivotally connected to said back frame at its other end, a link pivotally connecting the other arm of said rocker to said back frame, and means for movably supporting the seat frame on said body frame.
2. A sitting and reclining chair, having a body frame, a seat frame and a back frame, a pair of lateral linkage units mounted one on each side of said body frame for supporting said seat frame for forward and upward movement, and said back frame for tilting backward movement when reclining from normal sitting position and reciprocally for return movement, each of said linkage units including a iirst bar secured to said body frame, a second bar secured to the seat frame, links pivotally connecting said two bars, an extension extending rearwardly from said first bar and rigid therewith, a rocker pivotally mounted on said extension intermediate its ends to form two arms, a first link pivotally connected to one arm of said rocker and to said second bar, a side arm rigidly secured to said first link at one end and pivotally connected to said back frame at its other end, a second link pivotally connected to the other arm of said rocker at one end and to said back frame at its other end, the pivotal connections of said side arm and second link to said back frame being spaced apart, so constructed land arranged that pivotal movement of said rocker relatively to said body frame will simultaneously Yelevate said side arm and displace the same forwardly to thereby impart to said back frame a combined rotal tional and forward movement.
3. A sitting and reclining chair comprising a body frame, a back frame, a seat frame and a foot rest pivoted on said seat frame for movement from a retracted downward limit position abutting against said body frame to an elevated substantially horizontal limit position, a
pair of lateral linkage units mounted one on each side of the body frame for pivoting said foot rest and for supporting said seat frame for forward and upward movement, and the back frame for tilting backward movement when reclining from normal sitting position and reciprocally for return movement, each of said linkage units including a first bar secured to said body frame, a second bar extending above said tirst bar and secured to said seat frame, iirst and second links pivotally connecting said two bars, an extension rigid with said iirst bar and projecting rearwardly thereof, a rocker pivotally mounted on said extension intermediate its ends andl forming two mutually inclined arms, a third link pivotally connecting the forward arm of said rocker to said second bar,
' aside arm'rigidly secured to said third link at one end and making an angle therewith, said side arm piv- -otally connected to the lower end of said back frame at its other end, a fourth link pivotally connected at one end to the rearwardly extending arm of said rocker and at its other end to said back frame at a point spaced from the pivotal connection of said sido arm to said back frame, an arm secured to one of said rst and second links and means connecting said last mentioned arm to said foot rest whereby pivotal movement of said one link will elevate said foot rest from its retracted position to its elevated position.
4. A sitting and reclining chair comprising a body frame, a back frame, a deformable parallelogram arrangement disposed on each side of said body frame and comprising an upper horizontal member movable upwardly and forwardly relative to said body frame, a lower horizontal member secured 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 upper horizontal member, a foot rest, a crank-shaped lever pivotally mounting said foot rest on said seat frame, an arm rigidly secured to said front link and extending upwardly therefrom, a link pivotally connecting said arm to said crank-shaped lever so as to elevate said foot rest upon upward and forward movement of said seat frame, an extension rigid with and extending rearwardly of said lower horizontal member, a rocker pivotally mounted intermediate its ends on the rear end of said extension and forming two arms, a first link pivotally connected to the forward arm of said rocker and to said upper horizontal member, a side arm rigid with and projecting at an angle from said first link and pivotally connected at its free end to the lower end of said back frame and a second link pivotally connecting the rear arm of said rocker to said back frame.
5. A sitting and reclining chair as claimed in claim 4, further including abutment means to provide a reclined limit position for said back frame, and wherein said back frame when in said reclined limit position, extends outwardly and downwardly with relation to the horizontal.
6. A sitting and reclining chair as claimed in claim 4, further including an abutment member secured to said lower horizontal member and adapted to abut said upper horizontal member for limiting its downward movement.
7. A sitting and reclining chair as claimed in claim 6, further including a second abutment member secured to said extension of said lower horizontal member and adapted to abut said rocker for limiting the pivotal movement of said rocker.
8. A sitting and reclining chair as claimed in claim 3 wherein the sum of the length of said first bar between its connections with said connecting links and of the length of one of said connecting links between its connections with said bars is equal to the sum of the length of said second bar between its connection with said connecting links and of the length of the other of said connecting links between its connection with said bars.
9. A sitting and reclining chair comprising a body frame, a back frame, a deformable quadrilateral system disposed on each side of said body frame and comprising an upper member movable upwardly and forwardly relative to said body frame, a lower member secured to said body frame and first and second links connecting said upper and lower members, one of said links and one of said members being shorter than the other of said links and the other of said members respectively, a seat frame secured to said upper member, an extension rigid with and extending rearwardly of said lower member, a rocker pivotally mounted intermediate its ends on the rear end of said extension and forming two arms, a third link pivotally connected to the forward arm of said rocker and to said upper member, a side arm rigid with and projecting at an angle from said third link and pivotally connected at its free end to the lower end of said back frame, and a fourth link pivotally connecting the rear arm of said rocker to said back frame.
10. A sitting and reclining chair as claimed in claim 9 further including a foot rest, a crank-shaped lever pivotally mounting said foot rest on said seat frame, an arm secured to one of said lirst and second links and extending upwardly therefrom, a fifth link pivotally connecting said last named arm to said crank-shaped lever so as to elevate said foot rest upon upward and forward movement of said seat frame.
References Cited in the tile of this patent UNITED STATES PATENTS 2,050,658 Holt Aug. 11, 1936 2,136,852 Knauth Nov. 15, 19381 2,240,850 Knabusch et al. May 6, 1941 2,335,870 Martin Dec. 7, 1943 2,503,527 Van Camp Apr. 11, 1950 2,615,497 Luckhardt Oct. 28, 1952 FOREIGN PATENTS 206,571 Great Britain Nov. 5, 1923
US404685A 1953-01-28 1954-01-18 Reclining chair with foot rest articulation Expired - Lifetime US2764224A (en)

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2849052A (en) * 1956-06-08 1958-08-26 Anton Lorenz Leg rest reclining seating units retractable under seat
US2909213A (en) * 1956-03-12 1959-10-20 Res Interests Ltd Reclining chairs
US2922464A (en) * 1958-05-12 1960-01-26 Adelard J Belisle Reclining chair
US2932345A (en) * 1956-06-08 1960-04-12 Anton Lorenz Leg rest operating mechanism for reclining seating units
US2976913A (en) * 1959-08-11 1961-03-28 Anton Lorenz Reclining chair of multiple-position type
US3076676A (en) * 1956-06-08 1963-02-05 Anton Lorenz Leg rest mechanism for tilting seating units
US3102753A (en) * 1960-08-04 1963-09-03 Anton Lorenz Multiple position reclining chair with extendible head-rest
US3139305A (en) * 1962-05-09 1964-06-30 Gen Steel Products Inc Reclining chair and fixture
US3169794A (en) * 1957-08-02 1965-02-16 Peter S Fletcher Reclining chair of the multiple movement type
US3198576A (en) * 1962-09-21 1965-08-03 Super Sagless Spring Corp Reclining seating device
US3337267A (en) * 1966-01-27 1967-08-22 Royal Dev Co Positionable chair
US3363942A (en) * 1956-08-03 1968-01-16 Peter S. Fletcher Reclining chair sequencing arrangement
US3869172A (en) * 1973-06-28 1975-03-04 Pontiac Furniture Ind Chair reclining mechanism
US3973798A (en) * 1972-09-25 1976-08-10 La-Z-Boy Chair Company Deflectable chair back
US4092041A (en) * 1977-01-21 1978-05-30 Alexander C. Daswick Chair universally adjustable by occupant reclining therein, and method
US4796952A (en) * 1986-06-12 1989-01-10 Giancarlo Piretti Chair with hinged backrest
US5931535A (en) * 1998-01-30 1999-08-03 Dacor Manufacturing Company, Inc. Clinical care recliner
EP1066776A1 (en) * 1999-07-08 2001-01-10 Pascal Berger Adjustable chair
US20110266841A1 (en) * 2008-11-25 2011-11-03 Kouichi Tanaka Chair
US9801471B2 (en) 2014-04-17 2017-10-31 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB206571A (en) * 1922-08-05 1923-11-05 Frederick Charles Shorter Improvements relating to chairs, couches, and the like
US2050658A (en) * 1935-05-22 1936-08-11 William A Holt Studio couch
US2136852A (en) * 1937-05-28 1938-11-15 Fifine O Knauth Adjustable chair
US2240850A (en) * 1938-10-06 1941-05-06 Floral City Furniture Co Chair
US2335870A (en) * 1941-08-02 1943-12-07 Us Cabinet Bed Co Couch bed
US2503527A (en) * 1945-01-29 1950-04-11 John E Van Camp Chair convertible to bed
US2615497A (en) * 1949-05-26 1952-10-28 Anton Lorenz Reclining article of furniture

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB206571A (en) * 1922-08-05 1923-11-05 Frederick Charles Shorter Improvements relating to chairs, couches, and the like
US2050658A (en) * 1935-05-22 1936-08-11 William A Holt Studio couch
US2136852A (en) * 1937-05-28 1938-11-15 Fifine O Knauth Adjustable chair
US2240850A (en) * 1938-10-06 1941-05-06 Floral City Furniture Co Chair
US2335870A (en) * 1941-08-02 1943-12-07 Us Cabinet Bed Co Couch bed
US2503527A (en) * 1945-01-29 1950-04-11 John E Van Camp Chair convertible to bed
US2615497A (en) * 1949-05-26 1952-10-28 Anton Lorenz Reclining article of furniture

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909213A (en) * 1956-03-12 1959-10-20 Res Interests Ltd Reclining chairs
US3076676A (en) * 1956-06-08 1963-02-05 Anton Lorenz Leg rest mechanism for tilting seating units
US2849052A (en) * 1956-06-08 1958-08-26 Anton Lorenz Leg rest reclining seating units retractable under seat
US2932345A (en) * 1956-06-08 1960-04-12 Anton Lorenz Leg rest operating mechanism for reclining seating units
US3363942A (en) * 1956-08-03 1968-01-16 Peter S. Fletcher Reclining chair sequencing arrangement
US3169794A (en) * 1957-08-02 1965-02-16 Peter S Fletcher Reclining chair of the multiple movement type
US2922464A (en) * 1958-05-12 1960-01-26 Adelard J Belisle Reclining chair
US2976913A (en) * 1959-08-11 1961-03-28 Anton Lorenz Reclining chair of multiple-position type
US3102753A (en) * 1960-08-04 1963-09-03 Anton Lorenz Multiple position reclining chair with extendible head-rest
US3139305A (en) * 1962-05-09 1964-06-30 Gen Steel Products Inc Reclining chair and fixture
US3198576A (en) * 1962-09-21 1965-08-03 Super Sagless Spring Corp Reclining seating device
US3337267A (en) * 1966-01-27 1967-08-22 Royal Dev Co Positionable chair
US3973798A (en) * 1972-09-25 1976-08-10 La-Z-Boy Chair Company Deflectable chair back
US3869172A (en) * 1973-06-28 1975-03-04 Pontiac Furniture Ind Chair reclining mechanism
US4092041A (en) * 1977-01-21 1978-05-30 Alexander C. Daswick Chair universally adjustable by occupant reclining therein, and method
US4796952A (en) * 1986-06-12 1989-01-10 Giancarlo Piretti Chair with hinged backrest
US5931535A (en) * 1998-01-30 1999-08-03 Dacor Manufacturing Company, Inc. Clinical care recliner
EP1066776A1 (en) * 1999-07-08 2001-01-10 Pascal Berger Adjustable chair
US20110266841A1 (en) * 2008-11-25 2011-11-03 Kouichi Tanaka Chair
US8783770B2 (en) * 2008-11-25 2014-07-22 Beautiful Life Co., Ltd. Chair
US9801471B2 (en) 2014-04-17 2017-10-31 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods
US10455940B2 (en) 2014-04-17 2019-10-29 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods

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