US3813150A - Chair with backrest movable up and down and hardware therefor - Google Patents

Chair with backrest movable up and down and hardware therefor Download PDF

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Publication number
US3813150A
US3813150A US00282847A US28284772A US3813150A US 3813150 A US3813150 A US 3813150A US 00282847 A US00282847 A US 00282847A US 28284772 A US28284772 A US 28284772A US 3813150 A US3813150 A US 3813150A
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United States
Prior art keywords
link
backrest
pivoted
seat
chair
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Expired - Lifetime
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US00282847A
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English (en)
Inventor
A Katz
R Caldwell
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MOHARCS IND Inc
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MOHARCS IND Inc
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Priority to US00282847A priority Critical patent/US3813150A/en
Priority to ZA735696A priority patent/ZA735696B/xx
Priority to GB3967073A priority patent/GB1410447A/en
Priority to FR7330318A priority patent/FR2197316A5/fr
Priority to DE19732342225 priority patent/DE2342225A1/de
Priority to JP48094234A priority patent/JPS4986159A/ja
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Publication of US3813150A publication Critical patent/US3813150A/en
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/034—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a leg-rest or foot-rest
    • A47C1/035—Reclining 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
    • A47C1/0355—Reclining 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 actuated by linkages, e.g. lazy-tongs mechanisms

Definitions

  • This chair has a backrest which can be moved up and down between raised and lowered positions; and can be reclined to T.V. and fully reclined positions.
  • a retractable footrest is also provided to be projected to T.V. position, and moved to fully reclined position.
  • the raising and lowering of the backrest can only take place when the seat is in upright position under control of a handle operated by the person sitting in the chair, who must lean forward to get at the handle and thus move away from the backrest before the backrest is moved up or down.
  • the backrest is locked down in the upright position, with the footrest retracted. Means is provided to lock the backrest in its up position.
  • the backrest and footrest are supported by mechanism disposed on both sides of the chair, such mechanism being controlled by handle controlled means on one side only of the chair.
  • One object of this invention is to provide a chair of the character described having a backrest and means to raise and lower the backrest under control of a handle mounted on the chair frame.
  • Another object of this invention is to provide a chair of the character described in which the backrest is reclinable from upright to T.V. and fully reclined positions only while the backrest is in its up position.
  • Still another object of this invention is to provide a chair of the character described so constructed that the person sitting in the chair must lean forward to be out of contact with the backrest in order to reach and manipulate the handle to raise or lower the backrest.
  • Yet another object of this invention is to provide a chair of the character described having a footrest, means to lock the footrest in retracted position, and means to lock the backrest in lowered position with the footrest retracted. 4
  • a further object of this invention is to provide in a chair of the character described,means to lock the backrest in raised position, to permit the backrest to be reclined to T.V. and fully reclined positions with the backrest in raised or up position, to project the footrest as the backrest is moved to T.V. position, and to incline the seat to fully reclined position as the backrest is moved from T.V. to fully reclined position.
  • Yet a further objectof this invention is to provide a chair of the character described having spring means to assist in raising the backrest.
  • a still further object of this invention is to provide,
  • Still a further object-of this invention is to provide" means to prevent operation of the handle to' 'lower backrest, while the backrestis in TV. orv reclined positions.
  • Yet another object of this invention is to provide a chair of the character described'andlinkage mechanism and hardware therefor-which shall be strong, ruggedand durable, which shall 'be relatively inexpensive to manufacture, easy to manipulate and'which shall yet be practical, efficient and comfortable in use.
  • FIG. 1 is a side elevationalview of one side of a chair embodying the invention, with the backrest down and I in upright position, and with its footrest in retracted position; i
  • FIG. 2 shows the chair of FIG. 1 with the backrest in up position and upright and the footrest still in retracted position;
  • FIG. 3 shows the chair of FIG. 2 in T.V. position with the footrest projected
  • FIG. 4 shows the chair of FIG. 3 in fully reclined position
  • FIG. 5 is a partial rear view of the chair and linkages
  • FIG. 6 is a partial bottom view of the linkages for the chair.
  • FIG. 7 is a partial view of the backrest support mechanism at an opposite side of the chair.
  • Said chair comprises a chair frame 11 shown in dot-dash lines, and having a bottom base 12 mounted on front legs 13 and on rear legs 14.
  • the chair frame 11 has a rear support 15 provided with a lower cross support member 16.
  • the frame 11 also has side arms 17 (FIG. 5), a horizontal cross piece 18 and a vertical crosspiece 19.
  • a fixed support plate 20 (FIG. 2), having an upper edge 21, a lower edge 22, a front edge 23, a rear edge 24 and a rear cutaway edge 25. Only the plate 20 on the right side of the chair is shown, and the view is from the inside of the chair looking to the right.
  • a rear'bell crank 28 Pivoted to plate 20, as at 27, is a rear'bell crank 28 having a rear, downwardly extending arm 29 and a front forwardly extending arm 30. Pivoted to the lower end of arm 29, as at 31, is the rear end of link 32. The forward end of arm 30 is pivoted, as at 33, to an intermediate portion of a lever 34. The upper end of lever 34 is pivoted, as at 35, to a seat link 36. The lower end of lever 34 has a slot 37.
  • a link 38 pivoted to plate 20, as at 39, carries a pin 40 which slides in slot 37.
  • a front bell crank 42 Pivoted to plate 20, as at 41, is a front bell crank 42 having a rear, downwardly extending arm 43, the lower end of which, is pivoted, as at 44, to the front end of link 32.
  • Front bell crank 42 has a forwardly extending arm 45 pivoted at its frontend, as at 46, to a bell crank 47.
  • Bell crank 47 has an upwardly extending arm 48 pivoted at its upper end, as at 49, to the seat link 36.
  • Bell crank 47 has arearwardly extending arm 50 pivoted at its rear end, as at 51, to the rear end of a footrest operating link 52.
  • the seat link 36 extends forwardly of pivot 49.
  • a lever 56 Pivoted to the front end of seat link 36, as at-54, is a lever 56 to which the front end of link 52 is pivoted, as at 57.'Pivoted to the bell crank 47, at the junction of arms 50, 48, as at 58, is a footrest link 59 which extends downwardly in theretracted position of the footrest, as shown in FIGS. 1 and 2 of the drawing.
  • a lever 60 is pivoted at its lower end to the lower end of link 59, as at 61, and crosses lever 56 and is pivoted thereto as at 62.
  • a stop 63 on lever 60 contacts an edge of lever 56 to limit retraction of the footrest.
  • a link 65 Pivoted to the lower end of lever 56, as at 64, is a link 65 which is pivoted to a'footrest member 66, as at 67. Footrest member 66' is pivoted, as at 68, to' the upper end of lever 60.
  • the footrest linkage comprises a lazytong construction.
  • each seat link 36 is an upwardly extending arm 36a.
  • Pivotedto'the upper ends of arms 36a, as at 70 are high-low mounting links 71 located on both sides of the chair.
  • Back carrier links 72 are pivoted at their upper ends, as at 73, to arms 71a of the high-low mounting links 71.
  • the lower end of the back carrier link on the right side of the chair is connected, as by rivet 74, to the rear end of a primary bell crank pivot plate 75 and to plate on the right side of the chair.
  • the other end of said pivot plate 75 is riveted, as at 75a, to plate 20.
  • the lower end of the back carrier link on the left side of the chair is connected by rivet 74 directly to plate 20 on the left side of the chair.
  • the seat of the chair (not shown) may be mounted on the seat links at opposite side of the chair in a conventional manner.
  • FIG. I shows the plate 20 and hardware thereon when looking at the right side of the frame from the inside of the chair.
  • the handle bracket reinforcement member 81 is located on the outside of said plate 20.
  • Said member 81 has an arm 81a lying against plate 20 and receiving said rivet 80.
  • Said arm is also attached to plate 20 by a shoulder rivet 81!) which also has a part slidably received in a short slot 82 ofa sequence release link 82a to be described in detail hereinafter.
  • Member 81 has an outwardly bent part 81c at the lower end of arm 81a, from which a vertical wall 81d extends downwardly.
  • Said wall 81d has an arm 81c which is inclined upwardly and rearwardly in a vertical plane and is formed with a web 81f extending outwardly at right angles to arm 81e, and from which a flange 81g extends in a vertical plane.
  • a Z-shaped handle bracket 83 Pivoted to flange 81g, in the manner hereinafter described. is a Z-shaped handle bracket 83.
  • Said bracket 83 has a vertical flange 83a contacting flange 81g and pivoted thereto by a rivet 84.
  • Extending outwardly at right angles to flange 83a is a web 83b, from which an arm 83c extends in a vertical plane.
  • a handle crank 86 Pivoted to plate 20, on a rivet 85 concentric with rivet 84, is a handle crank 86.
  • the rivet 85 passes through an intermediate web portion 860 in member 86, which contacts the outer side of plate 20.
  • members 83 and 86 rotate together about plate 20 and member 81 by reason of the concentric location of spaced pivoting rivets 84, 85.
  • Extending upwardly from web 86a is an arm 86c.
  • a rivet 88 which is slidably received in a part circular slot 89 in link 82a.
  • the center of curvature of slot 89 is at the axis of concentric rivets 84, to allow members 83, 86, to rotate through an angle defined by the angular extent of said slot 89, without moving the sequence release link 82a.
  • a handle Fixed to arm 83c of member 83, as by fasteners 89a, is a handle which, in the retracted position of the footrest and the down position of the backrest (to be described hereinafter), projects forwardly of pivot rivet 84, as shown in FIG. 1, and which extends upwardly upon actuating the handle, as shown in FIG. 2.
  • the location of the axis of rivets 84, 85 is such that the person sitting in the chair will have to lean forwardly, away from the backrest (to be described hereinafter), in order to reach the handle to move it in a clockwise direction from the FIG. 1 position thereof, to the FIG. 2 position thereof, for raising the backrest (in the manner hereinafter explained), so that the sitter will not contact the backrest while it is being moved up or down.
  • the rivets 84, 85 are located near the forward end of plate 20.
  • a high-low sequence link 92 extending downwardly therefrom and formed with a reversed L-shaped slot 93 having a longitudinal, elongated portion 93a from the lower end of which extends a short branch 93b in a forward direction.
  • said link 92 has an inwardly curved edge 92b for the purpose hereinafter appearing.
  • Link 59 is bell crank shaped and has two arms. Near the junction of the two arms is a rivet 94 passing through the offset branch portion 93b of the slot 93, when the footrest linkage is retracted, as shownin FIGS. 1, 2 of the drawing.
  • pin 88 moves through slot 89 to the forward end thereof, without moving the link 82a.
  • the link 82a is moved forwardly to cause pin 97 to swing link 92 in a clockwise direction, looking at FIG. 2, to move pin 94 to the lower end of longitudinal slot portion 93a, to release the footrest linkage for projection.
  • rivet 81b v as at 100 is one end of an actuator link 101 which extends rearwardly.
  • Pivoted to the rear end of said actuator link 101, as at 102 is one arm 103 of a primary bell crank 104.
  • Said bell crank 104 has a second arm 105.
  • Said bell crank is pivoted at the junction of arms 103, 105, as at 106 to an intermediate portion of said fixed primary bell crank pivot plate 75.
  • rivet 107 At the outer end of arm 105 of bell crank 104 is a rivet 107. Pivoted to rivet 107, is a primary drive link 108. In the position of FIG. 1, rivets 74, 107 are spaced from one another. In the positions of FIGS. 2, 3, 4, with the backrest in raised position, as will be described hereinafter, the rivets 74, 107 are concentric.
  • the primary drive link 107 carries a rivet 109 at its upper end. In the position of FIG.l, rivets 109 and 73 are spaced apart. In the positions of FIGS. 2, 3, and 4, rivets 73, 109 are concentric. In such positions, the backrest is raised as will be described below.
  • Said link 115 is pivoted as at 115a to high-low mounting link 71.
  • Said secondary bell crank or toggle link 115 has divergent arms 116, 117.
  • the pivot 109 is at the outer end of arm 116. Extending inwardly from the outer end of arm 117 is an elongated flange 118 to which one end of a transverse torque shaft or bar 119 is fixed as-by bolts 120 (FIGS. 1 and 5). At the left side of the chair, torque bar 119 is attached by bolts 121 to an elongated arm 122 of a toggle link 123. Said toggle link 123takes the place of the secondary bell crank 115 on the right side of the chair and has an arm 124 provided with a rivet 125 concentric with a rivet 127 on secondary bell crank or toggle link 115 and located at'the junction of arms 116,117 of said bell crank. (See FIGS. 1, 5 and 7).
  • cross bars 150 Fixed to the side plates 137 of the backrest and interconnecting the same are cross bars 150 provided with adaptor brackets 151 to which the upper ends of coil tension springs 133 are attached.
  • the backrest side plates 137 have cut-outs 156 to allow the torque shaft 119 to pass through said plates from one side of the chair to the other.
  • Any suitable backrest structure may be mounted on the front edges 137a of side plates 137, to provide a backrest against which the person sitting in the chair may lean.
  • handle 90, handle bracket 83 and handle crank 86 are rotated together, manually, in a clockwise direction around pivots 84, 85.
  • pin 88 travels through the curved slot 89 in the sequence release link 82a, said sequence release link and the high-low sequence link 92 remain motionless, keeping the recliner in upright position.
  • Steps in the following four paragraphs occur concurrently at both the right and left sides of the chair, thus imparting a bilateral lift to the backrest.
  • Helical springs 133 attached at one end to rivets 132 and at the other ends to brackets on the backrest frame 138 above rivets 132, assist in lifting the backrest by rotating lower carrier links 131 counterclockwise about pivot points 135.
  • rivets 127 cross the common central line of rivets 115a, 146, thus creating a toggle for releasably locking the backrest 138 in the up position.
  • pin 88 on handle crank 86 reaches the end of curved slot 89 in sequence release link 82a and moves the sequence release link leftward (FIG. 2) on rivet 81b.
  • Pin 97 on sequence release link 82a contacts the high-low sequence link 92 and rotates said link clockwise about pivot point 91, thus positioning rivet 94 in line with the long leg 93a ofthe slot 93 in high-low sequence link 92.
  • Such action unlocks the recliner to permit the person sitting in the chair to press back on the backrest, to cause the footrest to be projected and also to cause the backrest, and the seat links to be reclined to T.V. position of FIG. 3.
  • the concentricity of rivets 107 and 74 and of rivets 109 and 73 in the up position of the backrest allows primary drive link 108 and back carrier link 72 to move in unison while moving from upright to T.V. and fully reclined positions,and vice-versa, without disturbing the relative position of the parallelogramed links 131, 136, 115 (or 123), 140, 145, and 71.
  • Said links 131, 136, 115 (or 123), 140, 145, and 71 are connected together and to the rivets 135 on link 72 and to rivet 109 on link 108.
  • links 131, 136, 115 (or 123), 140, 145 do not move relative to links 72, 108 and to one another during movement to T.V. and recline positions.
  • Such arrangement keeps the backrest in the up position throughout the recline cycle, by isolating the high-low parallelogram from its primary drive system.
  • the second half of the high-low cycle i.e., from locked up position to locked down position, may be accomplished by reversing the sequence described above, which accompanies moving of the handle in a counterclockwise direction to-the horizontal position of FIG. 1 with the handle projecting forwardly of its pivot.
  • sequence release link 82a is allowed to move to the right (locking at FIG. 1), permitting sequence return spring 98 to rotate high-low sequence link 92 counterclockwise, thus engaging rivet 94 in the short leg 93b of slot 93 in the high-low sequence link 92, and locking the recliner in upright position.
  • handle When the backrest is in down position, handle is in a horizontal position forward of its axis, thus forcing the occupant of the chair to reach forwardly away from the backrest, and hence precluding resting his back against the backrest while trying to raise it. Also, as the handle is grasped in the up position and swung forwardly, the occupant of the chair must lean forward and away from the backrest to allow the backrest to move down without touching the back of the occupant.
  • Scabs in form of plywood, or other transverse supports or upholstering may be attached to the front edges 137a of side walls 137, against which the back of the occupant of the chair leans when sitting upright, or pushing back on the backrest or lying back on the backrest in T.V. or fully reclined position.
  • a chair comprising a base, seat means, a backrest, manually controlled means movably mounted on said base, means actuable by actuation of said manually controlled means, to move said backrest upwardly and downwardly relative to said seat means, means to connect said seat means to said base for movement from upright position to an inclined position, means to connect said backrest to said seat means and base for movement up and down relative to said seat means only in the upright position of said seat means, and for movement of said backrest to inclined position relative to said base, only when said backrest is in up position, and only together with movement of said seat means from upright to inclined position.
  • a retractable and extensible footrest means to movably connect said footrest to said seat means and base, means to lock said footrest in retracted condition when said seat means is in upright position, and to releasably lock said seat means in said upright position thereof, means to release said footrest for extension, upon moving said backrest upwardly from a down position thereof to an up position, in the upright position of said seat means, and to release said seat means for movement to inclined position, and means to recline'said backrest in the up position of the backrest, simultaneously with movement of said seat means to inclined position and projection of the footrest.
  • a chair comprising seat means, a backrest, means to move the backrest up and down relative to said seat means, and means manually actuable by the occupant of the chair to operate said means for moving the backrest upwardly and downwardly, a base, means to mount said manually actuable means on said base, and means to connect said seat means to said base for reclining movement relative thereto, means to connect said backrest to said base and to said seat means for reclining movement of said backrest relative to said base,
  • said manually actuable means comprising handle means pivotally mounted on said base and extending forwardly of its pivotal connection to said base, when said backrest is in a down position.
  • a chair comprising seat means, a backrest, manually controlled means, and means actuable by said manually controlled means, to move said backrest upwardly and downwardly relative to said seat means, a base, means to movably connect said seat means to said base, for movement from upright to inclined position, means to connect said backrest to said base and seat means for movement from upright to inclined positions, means to permit movement of said backrest upwardly or downwardly only when said seat means and backrest are in upright positions, and means to prevent movement of said seat means and backrest from upright to inclined positions unless said backrest has first been moved to its up position, means for locking said backrest in its up position, and means to prevent said backrest from being moved from upright to inclined position without first operating said means for moving said backrest upwardly.
  • Hardware for a chair comprising a seat link, a plate adapted to be fixed to the chair, link means movably connecting .said plate to said seat link, a primary bell crank pivoted to said plate, a primary drive link, pivoted to said primary bell crank, a back carrier link pivoted at one end to said plate, a high-low mounting link pivoted to the seat link, and to the other end of said back carrier link, a lower carrier link pivoted to said high-low mounting link, a backrest mounting link pivoted to said lower carrier link, a toggle link pivoted to said primary drive link and to said high-low mounting link, and an'upper carrier link pivoted to said backrest mounting link and to said high-low mounting link, and a secondary drive link pivoted to said toggle link,'and to said uppercarrier link.
  • Hardware for a chair comprising a plate adapted to be attached tosaid chair, a seat link, link means connecting said seat link to. said plate for moving said seat link from upright to inclinedposition, extensible and retractable lazy-tong linkage connected to said link means and to said seat link, a handle pivoted to said plate and means controlled by said handle, to releasably lock said linkage in retracted position, and for locking said seat link-against movement from upright to reclining position, a crank on said handle, an actuator link pivoted to said crank, a primary bell crank pivoted to said plate, a backrest mounting link, means on said primary bell crank to raise and lower said backrest mounting link, the pivotal connection between the crank and said actuator link being above a center line passing through the pivotal connection of the handle to the plate, and the pivotal connection of said primary bell crank to said actuator link, when the primary bell crank is in position to hold said backrest mounting link in lowered position.
  • Chair hardware comprising, a plate adapted to be attached to a chair, a seat link, first link means to movably connect said seat link to said plate, a back carrier link pivoted to said plate, a high-low mounting link pivoted to said seat link and to said back carrier link, a lower carrier link pivoted to said high-low mounting link, a backrest mounting link pivoted to said lower carrier link, a toggle link pivoted to said high-low mounting link, a drive link pivoted to said toggle link, and an upper carrier link pivoted to said backrest mounting link, to said drive link and to said high-low mounting link.
  • said means to ro- V tate said toggle link comprising a handle pivoted to said plate, and second link means connecting said handle to said toggle link to raise said backrest mounting link upon moving said handle in one direction.
  • said last mentioned lock means including means to lock said seat link against movement relative to said plate.
  • Chair hardware comprising a pair of aligned plates adapted to be attached to opposite sides of a chair, a seat link at each side of the chair, first link means to connect each seat link to the plate on the same side of the chair, a back carrier link pivoted to each plate, a high-low mounting link pivoted to each seat link and to the back carrier link on the same side of the chair, a lower carrier link pivoted to each highlow mounting link, a backrest mounting link pivoted to each lower carrier link, a toggle link pivoted to each high-low mounting link, a drive link pivoted to each toggle link, an upper carrier link pivoted to each backrest mounting link, to the drive link on the same side of the chair and to the high-low mounting link on the same side of the chair, a transverse torque shaft attached at its ends to said toggle links on both sides of the chair, and means controlled by manually operable means on one side of the chair only, to rotate the toggle links on both sides of the chair through said transverse torque shaft.
  • said means controlled by said means controlled by said manually operable means including a member pivoted to one of said plates, a handle pivoted to said one of said plates, an actuator link connecting said handle to said pivoted member, and another-drive link, pivoted to said pivoted member and to said toggle link on said one side of said chair.
  • a chair comprising a frame, a support member fixed to said frame, a seat link, means to movably connect said seat link to said support member, a first link pivoted to said seat link, a chain of interpivoted links, means to pivotally connect the end links of said chain of links to spaced pivot points of said first link, a backrest mounted on a link of said chain of links other than the end links of said chain of links, a carrier link pivoted to said support member and to said first link, manually actuable means movably mounted on said support member, and means connected to said manually actuable means to raise and lower the link on which said backrest is mounted.
  • said raise and lower means comprising a member pivoted relative to said support member, a primary drive link pivotally connected to said pivoted member, a toggle link pivoted to said first link, means to pivot said primary drive link to said toggle link, and a secondary drive link connecting the toggle link to one of the links in said chain of links.
  • Chair hardware comprising a support member adapted to be attached to the frame of a chair, a seat link, first link means to movably connect said seat link to said support member, a high-low mounting link pivoted to said seat link, a backrest mounting link, an upper carrier link connecting said backrest mounting link to said high-low mounting link, a lower carrier link connecting said backrest mounting link to said highlow mounting link, a manual handle pivoted to said support member, and means connecting said handle with said upper carrier link to raise said backrest mounting link when said handle is rotated in one direction and to lower said backrest mounting link when said handle is rotated in an opposite direction, and a back carrier link pivoted to said support member and to said high-low mounting link.
  • said means connecting said handle to said backrest mounting link comprising a primary drive link, pivotal means to connect said primary drive link to said handle, a toggle link pivoted to said high-low mounting link and to said primary drive link, and a link connecting said toggle link to said upper carrier link.

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
US00282847A 1972-08-22 1972-08-22 Chair with backrest movable up and down and hardware therefor Expired - Lifetime US3813150A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00282847A US3813150A (en) 1972-08-22 1972-08-22 Chair with backrest movable up and down and hardware therefor
ZA735696A ZA735696B (en) 1972-08-22 1973-08-21 Chair with backrest movable up and down and hardware therefor
GB3967073A GB1410447A (en) 1972-08-22 1973-08-21 Chair
FR7330318A FR2197316A5 (de) 1972-08-22 1973-08-21
DE19732342225 DE2342225A1 (de) 1972-08-22 1973-08-21 Stuhl mit einer auf- und abbewegbaren rueckenlehne
JP48094234A JPS4986159A (de) 1972-08-22 1973-08-22

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US00282847A US3813150A (en) 1972-08-22 1972-08-22 Chair with backrest movable up and down and hardware therefor

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US3813150A true US3813150A (en) 1974-05-28

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US00282847A Expired - Lifetime US3813150A (en) 1972-08-22 1972-08-22 Chair with backrest movable up and down and hardware therefor

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US (1) US3813150A (de)
JP (1) JPS4986159A (de)
DE (1) DE2342225A1 (de)
FR (1) FR2197316A5 (de)
GB (1) GB1410447A (de)
ZA (1) ZA735696B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113305A (en) * 1977-06-06 1978-09-12 Leggett & Platt, Incorporated Recliner leg rest linkage assembly
US4319780A (en) * 1979-10-16 1982-03-16 Rogers Jr Walter C Rocker-recliner chair
US4352523A (en) * 1980-07-02 1982-10-05 Mohasco Corp. Manually-operated spring-assisted reclining chairs
WO1995028859A1 (en) * 1994-04-20 1995-11-02 Massello Pty. Ltd. Recliner chair
US20080001442A1 (en) * 2006-06-08 2008-01-03 L & P Property Management Company Linkage mechanism for a recliner chair
US20080217975A1 (en) * 2007-03-09 2008-09-11 Casteel Richard E Zero clearance recliner mechanism
US20140021760A1 (en) * 2012-07-18 2014-01-23 L & P Property Management Company Seat-lift assembly
US8944498B2 (en) 2012-01-05 2015-02-03 L & Property Management Company Linkage mechanism for a dual-motor lifting recliner
US9039078B2 (en) 2010-02-11 2015-05-26 L&P Property Management Company Zero-wall clearance linkage mechanism for a lifting recliner

Citations (4)

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US2978013A (en) * 1958-08-21 1961-04-04 Johnson Hinge Company Inc Adjustable backrest for chair structure
US2992855A (en) * 1959-06-01 1961-07-18 Harvey H Mohler Chair with adjustable back
US3243327A (en) * 1961-05-16 1966-03-29 Hoppeler Walter Method of making a pressed plate
US3353193A (en) * 1966-01-26 1967-11-21 Greiner Otto Self-adjusting beds

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US2978013A (en) * 1958-08-21 1961-04-04 Johnson Hinge Company Inc Adjustable backrest for chair structure
US2992855A (en) * 1959-06-01 1961-07-18 Harvey H Mohler Chair with adjustable back
US3243327A (en) * 1961-05-16 1966-03-29 Hoppeler Walter Method of making a pressed plate
US3353193A (en) * 1966-01-26 1967-11-21 Greiner Otto Self-adjusting beds

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113305A (en) * 1977-06-06 1978-09-12 Leggett & Platt, Incorporated Recliner leg rest linkage assembly
US4319780A (en) * 1979-10-16 1982-03-16 Rogers Jr Walter C Rocker-recliner chair
US4352523A (en) * 1980-07-02 1982-10-05 Mohasco Corp. Manually-operated spring-assisted reclining chairs
WO1995028859A1 (en) * 1994-04-20 1995-11-02 Massello Pty. Ltd. Recliner chair
US20080001442A1 (en) * 2006-06-08 2008-01-03 L & P Property Management Company Linkage mechanism for a recliner chair
US7396074B2 (en) * 2006-06-08 2008-07-08 L & P Property Management Company Linkage mechanism for a recliner chair
US20080217975A1 (en) * 2007-03-09 2008-09-11 Casteel Richard E Zero clearance recliner mechanism
US7850232B2 (en) 2007-03-09 2010-12-14 Ashley Furniture Industries, Inc. Zero clearance recliner mechanism
US9039078B2 (en) 2010-02-11 2015-05-26 L&P Property Management Company Zero-wall clearance linkage mechanism for a lifting recliner
US8944498B2 (en) 2012-01-05 2015-02-03 L & Property Management Company Linkage mechanism for a dual-motor lifting recliner
US20140021760A1 (en) * 2012-07-18 2014-01-23 L & P Property Management Company Seat-lift assembly
US9050231B2 (en) * 2012-07-18 2015-06-09 L&P Property Management Company Seat-lift assembly

Also Published As

Publication number Publication date
GB1410447A (en) 1975-10-15
JPS4986159A (de) 1974-08-17
FR2197316A5 (de) 1974-03-22
ZA735696B (en) 1974-07-31
DE2342225A1 (de) 1974-03-07

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