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WO2005099518A1 - Mechanism for reclining chairs - Google Patents

Mechanism for reclining chairs Download PDF

Info

Publication number
WO2005099518A1
WO2005099518A1 PCT/IT2004/000416 IT2004000416W WO2005099518A1 WO 2005099518 A1 WO2005099518 A1 WO 2005099518A1 IT 2004000416 W IT2004000416 W IT 2004000416W WO 2005099518 A1 WO2005099518 A1 WO 2005099518A1
Authority
WO
WIPO (PCT)
Prior art keywords
frame
back frame
mechanism according
seat frame
headrest
Prior art date
Application number
PCT/IT2004/000416
Other languages
French (fr)
Inventor
Pasquale De Palo
Original Assignee
Contempo S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Contempo S.P.A. filed Critical Contempo S.P.A.
Publication of WO2005099518A1 publication Critical patent/WO2005099518A1/en

Links

Classifications

    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • 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
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest

Definitions

  • the present invention relates to a mechanism for reclining chairs, and in particular to a mechanism which can rotate the headrest according to the inclination of the back.
  • WO 92/06621, EP 721751, EP 721752, WO 00/57754 and WO 03/003879 disclose mechanisms for reclining chairs, which comprise a seat frame pivoted to a back frame which is in turn pivoted to a headrest frame, wherein the back frame is connected in a rotating manner to a support structure provided with guides for sliding members fixed to the seat frame, so that when the seat frame slides on the guides of the support structure, the back frame rotates with respect to the support structure and simultaneously the seat frame and the back frame rotate with respect to each other.
  • a ⁇ end of two control levers is hinged to the headrest frame for controlling its rotation with respect to the back frame, so that when the angle comprised between the seat frame and the back frame increases, the angle comprised between the back frame and the headrest frame decreases, and vice versa.
  • Said control levers are pivoted to a fixed member which is integral with the support structure and protrudes inside the back frame, so that the rotation of the headrest depends only on the inclination of the back frame, so as to limit the possibilities of controlling the headrest with respect to the complex movement of all the frames of the mechanism.
  • the movement of the headrest depends on the mutual rotation of the back frame with respect to the seat frame and not with respect to the support structure, so as to obtain a mechanism independent from the position with respect to the support structure, i.e. simpler and more adaptable to the desired movement.
  • the back frame is preferably hinged to the headrest frame by means of flexible plates, so that the headrest is fixed in a manner simple to be carried out and not rigid, thereby improving the user's comfort.
  • other flexible plates are preferably fixed longitudinally between the back frame and the control levers, so as to control the extension of the springs in the lumbar zone in a manner simple to be carried out and not rigid, thereby further improving the user's comfort.
  • These springs can also be bent by protruding members fixed to the control levers.
  • the control levers are suitably shaped and pivoted to the seat and headrest frames, so as to reduce the hindrance and the complexity of the mechanism and to imparting it a smooth movement.
  • the frames preferably have particular shapes and/or sections, so as to improve and simplify the working and the maintenance of the mechanism according to the present invention.
  • figure 2 shows a lateral view of the mechanism of figure 1 ;
  • - figure 3 shows a lateral sectioned view of the mechanism of figure 1 in the reclined position
  • - figure 4 shows a lateral sectioned view of the second embodiment of the mechanism in the upright position
  • the mechanism according to the first embodiment of the present invention comprises in a known way at least one seat frame 1 hinged to at least one back frame 2 which is in turn hinged to at least one headrest frame 3.
  • the back frame 2 is further connected in a rotating manner to a support structure 4, preferably provided with a swivel base 5 (illustrated schematically).
  • the support structure 4 is further provided with curved guides 6 for sliding members 7, for example wheels loc-kable with a knob, fixed to the sides of the seat frame 1, so that the latter can slide with respect to the support structure 4.
  • the back frame 2 is connected by means of a pair of side pivots 8 to two longitudinal bars 4a of the support structure 4, which also serve for mounting armrests.
  • the seat frame 1 is hinged to the back frame 2 by means of a pair of transversal pivots 9 inserted into corresponding holes made in the rear side ends of the seat frame 1 and in the lower side ends of the back frame 2. Therefore, when the seat frame 1 slides forwards on guides 6 of the support structure 4, the back frame 2 rotates around pivots 8 with respect to the support structure 4 and sinrultaneously the seat frame 1 and the back frame 2 mutually rotate around pivots 9.
  • control levers 10 An end of one or more control levers 10, in particular two control levers 10 arranged beside the inner sides of the back frame 2, is hinged by means of a pivot 11 to the headrest frame 3 for controlling its rotation with respect to the back frame 2, so that wben the angle a comprised between the seat frame 1 and the back frame 2 increases, the angle b comprised between the back frame 2 and the headrest frame 3 decreases, and vice versa.
  • the control levers 10 are suitably pivoted also to the seat frame 1, so that the seat frame 1, the back frame 2, the headrest frame 3 and the control levers 10 form at least one articulated quadrilateral.
  • the sum of the angle a comprised between the seat frame 1 and the back frame 2 and of the angle b comprised between the back frame 2 and the headrest frame 3 remains substantially the same during the mutual rotation of these frames 1, 2, 3.
  • the angle a comprised between the seat frame 1 and the back frame 2 can vary from 90° to 150°
  • the angle b comprised between the back frame 2 and the headrest frame 3 can vary from 180° to 120°.
  • the back frame 2 is preferably hinged to the headrest frame 3 by means of one or more first flexible plates 12 which are made of string steel and are fixed onto the rear portion of these two frames 2, 3.
  • control levers 10 are instead curved close to their ends, so that their portion arranged between these two curves remains behind an axis passing across pivot 11 and pivot 13 connecting a lever 10 to the seat frame 1.
  • Said central portion of the control levers 10 is preferably contained within the inner space comprised between the sides of the back frame 2.
  • pivot 13 is inserted into a transversal hole made in a parallelepiped-shaped seat which is fixed inside the seat frame 1 close to pivot 9 and is provided with a vertical groove in which the end of a control lever 10 is arranged in a rotating manner.
  • the seat frame 1 is provided with a stiffening crossbar 14, while the back frame 2 is provided with a stiffening crossbar 15, as well as with a further crossbar 16 fixed to the upper and rear portion of the back frame 2.
  • One or more second flexible plates 17 made of string steel are fixed longitudinally between crossbar 16 of the back frame 2 and the control levers 10, so that when angle a comprised between the seat frame 1 and the back frame 2 decreases, the flexible plates 17 bend forwards, and vice versa.
  • the forward bending of the flexible plates 17 causes a corresponding forward bending of one or more wavy springs 18 arranged transversally in the lower portion of the back frame 2, corresponding to the user's lumbar zone.
  • wavy springs are arranged transversally in frames 1, 2, 3 for supporting the different portions of the user's body.
  • the seat frame 1, the back frame 2 and/or the headrest frame 3 are preferably made up of metal section bars having a quadrangular cross- section preferably open inwardly, wherein a series of slots 19 are made along the upper or lower edges of this quadrangular cross-section for housing the ends of said wavy springs.
  • Figure 3 shows the mechanism according to the first embodiment of the present invention in a reclined position, where the wavy springs 18 are less bent with respect to the upright position, since also the flexible plates 17 are less bent due to the rotation of the control levers 10 with respect to the back frame 2, i.e.
  • the wavy springs 18 can be bent by one or more protruding members 20 which are fixed to the control levers 10 and urge forwards the ends of the springs in the upright position of the mechanism.
  • the protruding members 20 comprise a wheel pivoted to a pin 21 which is fixed to the inner side of a control lever 10 in a substantially horizontal position.
  • control lever 10 moves slightly forwards with respect to the back frame 2, so that wheel 20 urges and bends forwards the wavy springs 18, thereby simultaneously rotating slightly on them.
  • the control levers 10 are arranged inside the lateral metal section bars of the back frame 2.
  • the sides of the seat frame 1 and of the headrest frame 3 are made up of metal section bars, while their edges opposite to the back frame 2 are made up of shaped plates 22, 23 with an elongated shape.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)

Abstract

Mechanism for reclining chairs, which comprises at least one seat frame (1) hinged to at least one back frame (2) which is in turn hinged to at least one headrest frame (3), wherein the back frame (2) is connected in a rotating manner to a support structure (4) provided with guides (6) for sliding members (7) fixed to the seat frame (1), so that when the seat frame (1) slides on the guides (6) of the support structure (4), the back frame (2) rotates with respect to the support structure (4) and simultaneously the seat frame (1) and the back frame (2) rotate with respect to each other, an end of one or more control levers (10) being hinged to the headrest frame (3) for controlling its rotation with respect to the back frame (2), so that when the angle (a) comprised between the seat frame (1) and the back frame (2) increases, the angle (b) comprised between the back frame (2) and the headrest frame (3) decreases, and vice versa, wherein the control levers (10) are also pivoted to the seat frame (1) or to a member integral therewith, so that the seat frame (1), the back frame (2), the headrest frame (3) and the control levers (10) form at least one articulated quadrilateral.

Description

MECHANISM FOR RECLINING CHAIRS
The present invention relates to a mechanism for reclining chairs, and in particular to a mechanism which can rotate the headrest according to the inclination of the back. WO 92/06621, EP 721751, EP 721752, WO 00/57754 and WO 03/003879 disclose mechanisms for reclining chairs, which comprise a seat frame pivoted to a back frame which is in turn pivoted to a headrest frame, wherein the back frame is connected in a rotating manner to a support structure provided with guides for sliding members fixed to the seat frame, so that when the seat frame slides on the guides of the support structure, the back frame rotates with respect to the support structure and simultaneously the seat frame and the back frame rotate with respect to each other. Aα end of two control levers is hinged to the headrest frame for controlling its rotation with respect to the back frame, so that when the angle comprised between the seat frame and the back frame increases, the angle comprised between the back frame and the headrest frame decreases, and vice versa. Said control levers are pivoted to a fixed member which is integral with the support structure and protrudes inside the back frame, so that the rotation of the headrest depends only on the inclination of the back frame, so as to limit the possibilities of controlling the headrest with respect to the complex movement of all the frames of the mechanism. It is therefore an object of the present invention to provide a mechanism which is free from said disadvantage. Said object is achieved with a mechanism, the main features of which are disclosed in the first claim and other features are disclosed in the subsequent claims. Since the control levers are pivoted to the seat frame and the seat frame, the back frame, the headrest frame and the control levers form an articulated quadrilateral, the movement of the headrest depends on the mutual rotation of the back frame with respect to the seat frame and not with respect to the support structure, so as to obtain a mechanism independent from the position with respect to the support structure, i.e. simpler and more adaptable to the desired movement. According to a particular aspect of the invention, the back frame is preferably hinged to the headrest frame by means of flexible plates, so that the headrest is fixed in a manner simple to be carried out and not rigid, thereby improving the user's comfort. According to another particular aspect of the invention, other flexible plates are preferably fixed longitudinally between the back frame and the control levers, so as to control the extension of the springs in the lumbar zone in a manner simple to be carried out and not rigid, thereby further improving the user's comfort. These springs can also be bent by protruding members fixed to the control levers. According to a further particular aspect of the invention, the control levers are suitably shaped and pivoted to the seat and headrest frames, so as to reduce the hindrance and the complexity of the mechanism and to imparting it a smooth movement. Also the frames preferably have particular shapes and/or sections, so as to improve and simplify the working and the maintenance of the mechanism according to the present invention. A further reduction of the hindrance can be obtained by arranging the control levers inside the metal section bars forming the back frame. Further advantages and features of the mechanism according to the present invention will become clear to those skilled in the art from the following detailed and non-limiting description of two embodiments thereof with reference to the attached drawings, wherein: - figure 1 shows a lateral sectioned view of the first embodiment of the mechanism in the upright position;
- figure 2 shows a lateral view of the mechanism of figure 1 ;
- figure 3 shows a lateral sectioned view of the mechanism of figure 1 in the reclined position; - figure 4 shows a lateral sectioned view of the second embodiment of the mechanism in the upright position; and
- figure 5 shows a lateral sectioned view of the mechanism of figure 4 in the reclined position. Referring to figures 1 and 2, it is seen that the mechanism according to the first embodiment of the present invention comprises in a known way at least one seat frame 1 hinged to at least one back frame 2 which is in turn hinged to at least one headrest frame 3. The back frame 2 is further connected in a rotating manner to a support structure 4, preferably provided with a swivel base 5 (illustrated schematically). The support structure 4 is further provided with curved guides 6 for sliding members 7, for example wheels loc-kable with a knob, fixed to the sides of the seat frame 1, so that the latter can slide with respect to the support structure 4. h particular, the back frame 2 is connected by means of a pair of side pivots 8 to two longitudinal bars 4a of the support structure 4, which also serve for mounting armrests. The seat frame 1 is hinged to the back frame 2 by means of a pair of transversal pivots 9 inserted into corresponding holes made in the rear side ends of the seat frame 1 and in the lower side ends of the back frame 2. Therefore, when the seat frame 1 slides forwards on guides 6 of the support structure 4, the back frame 2 rotates around pivots 8 with respect to the support structure 4 and sinrultaneously the seat frame 1 and the back frame 2 mutually rotate around pivots 9. An end of one or more control levers 10, in particular two control levers 10 arranged beside the inner sides of the back frame 2, is hinged by means of a pivot 11 to the headrest frame 3 for controlling its rotation with respect to the back frame 2, so that wben the angle a comprised between the seat frame 1 and the back frame 2 increases, the angle b comprised between the back frame 2 and the headrest frame 3 decreases, and vice versa. According to the invention, the control levers 10 are suitably pivoted also to the seat frame 1, so that the seat frame 1, the back frame 2, the headrest frame 3 and the control levers 10 form at least one articulated quadrilateral. In particular, the sum of the angle a comprised between the seat frame 1 and the back frame 2 and of the angle b comprised between the back frame 2 and the headrest frame 3 remains substantially the same during the mutual rotation of these frames 1, 2, 3. Preferably, the angle a comprised between the seat frame 1 and the back frame 2 can vary from 90° to 150°, while the angle b comprised between the back frame 2 and the headrest frame 3 can vary from 180° to 120°. The back frame 2 is preferably hinged to the headrest frame 3 by means of one or more first flexible plates 12 which are made of string steel and are fixed onto the rear portion of these two frames 2, 3. The control levers 10 are instead curved close to their ends, so that their portion arranged between these two curves remains behind an axis passing across pivot 11 and pivot 13 connecting a lever 10 to the seat frame 1. Said central portion of the control levers 10 is preferably contained within the inner space comprised between the sides of the back frame 2. In particular, pivot 13 is inserted into a transversal hole made in a parallelepiped-shaped seat which is fixed inside the seat frame 1 close to pivot 9 and is provided with a vertical groove in which the end of a control lever 10 is arranged in a rotating manner. The seat frame 1 is provided with a stiffening crossbar 14, while the back frame 2 is provided with a stiffening crossbar 15, as well as with a further crossbar 16 fixed to the upper and rear portion of the back frame 2. One or more second flexible plates 17 made of string steel are fixed longitudinally between crossbar 16 of the back frame 2 and the control levers 10, so that when angle a comprised between the seat frame 1 and the back frame 2 decreases, the flexible plates 17 bend forwards, and vice versa. The forward bending of the flexible plates 17 causes a corresponding forward bending of one or more wavy springs 18 arranged transversally in the lower portion of the back frame 2, corresponding to the user's lumbar zone. Other wavy springs (not shown in the figures) are arranged transversally in frames 1, 2, 3 for supporting the different portions of the user's body. For this purpose, the seat frame 1, the back frame 2 and/or the headrest frame 3 are preferably made up of metal section bars having a quadrangular cross- section preferably open inwardly, wherein a series of slots 19 are made along the upper or lower edges of this quadrangular cross-section for housing the ends of said wavy springs. Figure 3 shows the mechanism according to the first embodiment of the present invention in a reclined position, where the wavy springs 18 are less bent with respect to the upright position, since also the flexible plates 17 are less bent due to the rotation of the control levers 10 with respect to the back frame 2, i.e. to crossbar 16 fixed to the latter. The flexible plates 12 are instead bent since the control levers 10 exert a pulling action onto the headrest frame, thereby rotating due to the opening of angle a comprised between the seat frame 1 and the back frame 2. Referring to figures 4 and 5, it is seen that in the second embodiment of the mechanism according to the present invention, similar to the first embodiment, the wavy springs 18 can be bent by one or more protruding members 20 which are fixed to the control levers 10 and urge forwards the ends of the springs in the upright position of the mechanism. In particular, in the present embodiment the protruding members 20 comprise a wheel pivoted to a pin 21 which is fixed to the inner side of a control lever 10 in a substantially horizontal position. With this arrangement, when the mechanism passes from the reclined position to the upright position, the control lever 10 moves slightly forwards with respect to the back frame 2, so that wheel 20 urges and bends forwards the wavy springs 18, thereby simultaneously rotating slightly on them. In the present embodiment, the control levers 10 are arranged inside the lateral metal section bars of the back frame 2. The sides of the seat frame 1 and of the headrest frame 3 are made up of metal section bars, while their edges opposite to the back frame 2 are made up of shaped plates 22, 23 with an elongated shape. Further modifications and/or additions may be made by those skilled in the art to the invention embodiments hereinabove described and illustrated while remaining within the scope of the same invention.

Claims

1. -Mechanisms for reclining chairs, which comprises at least one seat frame (1) hinged to at least one back frame (2) which is in turn hinged to at least one headrest frame (3), wherein the back frame (2) is connected in a rotating manner to a support structure (4) provided with guides (6) for sliding members (7) fixed to the seat frame (1), so that when the seat frame (1) slides on the guides (6) of the support structure (4), the back frame (2) rotates with respect to the support structure (4) and simultaneously the seat frame l) and the back frame (2) rotate with respect to each other, an end of one or more control levers (10) being hinged to the headrest frame (3) for controlling its rotation with respect to the back frame (2), so that when the angle (a) comprised between the seat frame (1) and the back frame (2) increases, the angle (b) comprised between the back frame (2) and the headrest frame (3) decreases, and vice versa, characterized in that the control levers (10) are also pivoted to the seat frame (1) or to a member integral therewith, so that the seat frame (1), the back frame (2), the headrest frame (3) and the control levers (10) form at least one articulated quadrilateral. 2. -Mechanism according to the previous claim, characterized in that the angle (a) comprised between the seat frame (1) and the back frame (2) can vary from 90° to 150°, while the angle (b) comprised between the back frame (2) and the headrest frame (3) can vary from 180° to 120° during the mutual rotation of these frames (1, 2,
3)- . . 3. -Mechanism according to the previous claim, characterized in that the sum of the angle (a) comprised between the seat frame (1) and the back frame (2) and of the angle (b) comprised between the back frame (2) and the headrest frame (3) remains substantially the same during the mutual rotation of these frames (1,
2,
3).
4. -Mechanism according to one of the previous claims, characterized in that the back frame (2) is hinged to the headrest frame (3) by means of one or more first flexible plates (12) which are fixed onto the rear portion of these two frames (2, 3), so that the flexible plates (12) are bent when the control levers (10) exert a pulling action onto the headrest frame (3) due to the opening of the angle (a) comprised between the seat frame (1) and the back frame (2).
5. Mechanism according to one of the previous claims, characterized in that one or more second flexible plates (17) are fixed longitudinally between the back frame (2) or a member (16) integral therewith and the control levers (10), so that when the angle (a) comprised between the seat frame (1) and the back frame (2) decreases, these flexi le plates (17) bend forwards, and vice versa.
6. Mechanism according to the previous claim, characterized in that the second flexible plates (17) are fixed longitudinally between a crossbar (16) fixed to the upper and rear portion of the back frame (2) and the control levers (10).
7. Mechanism according to claim 5 or 6, characterized in that one or more wavy springs (18) are arranged transversally in the lower portion of the back frame (2) for being bent forwards by the second flexible plates (17) when the latter are bent forwards.
8. Mechanism according to one of claims 4 to 7, characterized in that said flexible plates (12, 17) are made of string steel.
9. Mechanism according to one of the previous claims, characterized in that the control levers (10) are curved close to their ends, so that their portion arranged between these two curves remains behind an axis passing across the pivoting point (11) to the headrest frame (3) and the pivoting point (13) to the seat frame (1).
10. Mechanism according to the previous claim, characterized in that said central portion of the control levers (10) is contained within the inner space comprised between the sides of the back frame (2).
11. Mechanism according to one of the previous claims, characterized in that the control levers (10) are hinged to the seat frame (1) by means of a pivot (13) inserted into a transversal hole made in a parallelepiped-shaped seat which is fixed inside the seat frame (1) close to the pivoting point (9) between the seat frame (1) and the back frame (2) and is provided with a vertical groove in which the end of a control lever (10) is arranged in a rotating manner.
12. Mechanism according to one of the previous claims, characterized in that the seat frame (1), the back frame (2) and/or the headrest frame (3) are made up of metal section bars having a quadrangular inwardly open cross-section.
13. Mechanism according to the previous claim, characterized in that a series of slots (19) are made along the upper or lower edges of this quadrangular cross-section for housing the ends of wavy springs (18).
14. Mechanism according to claim 12 or 13, characterized in that the control levers (10) are arranged inside the lateral metal section bars of the back frame (2).
15. Mechanism according to one of claims 12 to 14, characterized in that the sides of the seat frame (1) and of the headrest frame (3) are made up of metal section bars, while their edges opposite to the back frame (2) are made up of shaped plates (22, 23) with an elongated shape.
16. Mechanism according to one of the previous claims, characterized in that one or more protruding members (20) are fixed to the control levers (10) for urging and bending forwards one or more wavy springs (18) in the upright position of the mechanism.
17. Mechanism according to the previous claim, characterized in that the protruding members (20) comprise a wheel pivoted to a pin (21) which is fixed to the inner side of a control lever (10) in a substantially horizontal position.
PCT/IT2004/000416 2004-04-13 2004-07-29 Mechanism for reclining chairs WO2005099518A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITPCT/IT2004/000204 2004-04-13
IT2004000204 2004-04-13

Publications (1)

Publication Number Publication Date
WO2005099518A1 true WO2005099518A1 (en) 2005-10-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2004/000416 WO2005099518A1 (en) 2004-04-13 2004-07-29 Mechanism for reclining chairs

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WO (1) WO2005099518A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1878361A1 (en) * 2006-07-12 2008-01-16 Haworth GmbH Backrest for an office chair
EP1943926A1 (en) * 2007-01-15 2008-07-16 HRT ApS Seat extendible recliner
US7802846B2 (en) * 2007-03-19 2010-09-28 Pierre Bellefleur Reclining chair and chassis, frame and kit therefor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871704A (en) * 1973-01-12 1975-03-18 La Z Boy Chair Co High-low back for chair
WO1994021153A1 (en) * 1993-03-23 1994-09-29 Georg Eknes Industrier A/S Arrangement of chair, bench, or the like, with pivotable back rest and associated neck support
EP0721751A2 (en) * 1990-10-12 1996-07-17 J.E. Ekornes A/S Arrangement in a recline chair
WO2000057754A1 (en) * 1999-03-08 2000-10-05 Ekornes Asa An arrangement in a chair, particularly a chair having an adjustable back and headrest
EP1327400A2 (en) * 2002-01-11 2003-07-16 Himolla Polstermöbel GmbH Furniture for sitting and/or lying on

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871704A (en) * 1973-01-12 1975-03-18 La Z Boy Chair Co High-low back for chair
EP0721751A2 (en) * 1990-10-12 1996-07-17 J.E. Ekornes A/S Arrangement in a recline chair
WO1994021153A1 (en) * 1993-03-23 1994-09-29 Georg Eknes Industrier A/S Arrangement of chair, bench, or the like, with pivotable back rest and associated neck support
WO2000057754A1 (en) * 1999-03-08 2000-10-05 Ekornes Asa An arrangement in a chair, particularly a chair having an adjustable back and headrest
EP1327400A2 (en) * 2002-01-11 2003-07-16 Himolla Polstermöbel GmbH Furniture for sitting and/or lying on

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1878361A1 (en) * 2006-07-12 2008-01-16 Haworth GmbH Backrest for an office chair
EP1943926A1 (en) * 2007-01-15 2008-07-16 HRT ApS Seat extendible recliner
US7802846B2 (en) * 2007-03-19 2010-09-28 Pierre Bellefleur Reclining chair and chassis, frame and kit therefor

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