EP2110050A1 - Ergonomic Chair - Google Patents
Ergonomic Chair Download PDFInfo
- Publication number
- EP2110050A1 EP2110050A1 EP09005270A EP09005270A EP2110050A1 EP 2110050 A1 EP2110050 A1 EP 2110050A1 EP 09005270 A EP09005270 A EP 09005270A EP 09005270 A EP09005270 A EP 09005270A EP 2110050 A1 EP2110050 A1 EP 2110050A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chair
- substantially undeformable
- undeformable
- backrest
- pivoting mechanism
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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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
- A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
Definitions
- the present invention relates to a chair and in particular an ergonomic chair (or armchair).
- Ergonomic chairs are already known in the furnishings sector, in particular in the office furnishings and furniture sector. These chairs typically comprise a backrest and a seat supported by a support element generally resting rotatably on a floor via wheels (typically castor wheels).
- the known ergonomic chairs typically comprise a synchronised pivoting mechanism which allows the backrest and the seat to be inclined in a predetermined manner. Generally, when the backrest is inclined at an angle ⁇ (alpha), the seat is inclined at an angle ( ⁇ ) beta equal to about half the angle of the backrest. In other words, the backrest and the seat of the known ergonomic chairs move in unison, albeit with different degrees of pivoting.
- the seat and the backrest are formed as two separate parts.
- an ergonomic chair with a seat and a backrest comprising:
- said deformable support frame comprises a pair of substantially L-shaped bars which define the profile of the backrest and the seat of the chair.
- each of said L-shaped bars is rigidly connected to said substantially undeformable rear element at a section of the side which defines the backrest and is also rigidly connected to said substantially undeformable front element at a section of the side which defines the seat, the two connecting sections having, between them, a curved section which is not constrained to either one of the substantially undeformable rear and front elements.
- the support frame also comprises an upper cross-piece for connecting the top ends of said L-shaped bars.
- each of said L-shaped bars has a double-strip profile which defines slots for fixing, in a tensioned condition, the supporting cover.
- At least one part of said deformable support frame may be made of a plastic material, for example nylon.
- the substantially undeformable rear element may be profitably connected rotatably to said substantially undeformable front element.
- Said substantially undeformable rear element may be profitably hinged to the pivoting mechanism.
- Said substantially undeformable front element may be hinged to the pivoting mechanism.
- the substantially undeformable rear element and said substantially undeformable front element are made of aluminium or an alloy of aluminium.
- the ergonomic chair according to one embodiment of the invention and which is shown in the various figures is denoted overall by the reference number 1. It comprises a conventional pivoting mechanism 2.
- the pivoting mechanism 2 is supported by a central tubular structure 3 (typically with a pneumatic piston for varying the height of the seat from the ground) connected to a plurality of arms 31.
- Each arm or radial element 31 terminates with a wheel 32 (typically a castor wheel).
- the chair 1 could be supported by legs with feet without wheels or by any other support structure.
- the pivoting mechanism 2 may be of any known type, typically a parallelogram pivoting mechanism, and will not be described in further detail.
- a substantially undeformable rear element 4 is connected to the pivoting mechanism 2.
- the substantially undeformable rear element 4 is connected to the pivoting mechanism 2 by means of a turned down saddle-shaped element 43.
- the substantially undeformable rear element 4 comprises a curved substantially flat top bar 41 and two flat side profiles 42 suitably shaped so as to define substantially the shape of the backrest.
- Top bar 41 and side profiles 42 form a sort of "C" shaped element.
- the two flat side profiles 42 are shaped as can be seen more clearly in the various figures, for example as shown in Figure 2 and in Figures 6 to 8 .
- the two side profiles 42 are rigidly connected to the turned down saddle-shaped element 43 at rotation points 46 and by screws 43'. In this manner, the "C" shaped element and the turned down saddle-shaped element 43 are rigidly connected to form a rigid component.
- the thus created closed profile is certainly more rigid than an open profile would be.
- Connection blocks 44 are suitable for connecting the backrest (not shown in the Figures).
- the two side profiles 42 are preferably reinforced with ribs 45 which are visible, for example, in Figure 8 .
- ribs 45 which are visible, for example, in Figure 8 .
- Points 46 could be parts of connection blocks 44 or could be provided substantially at the end of the two side profiles 42.
- the substantially undeformable rear element 4 may be made of plastic, metallic or composite material, or a combination thereof.
- plastic material for the purposes of the present description, is intended to mean primarily a material different from metal and in particular a substantially thermoplastic material with elongation at break values ⁇ 50% (during tensile tests performed on test pieces at 5 mm/min.) such as polycarbonate, polyester, polybutylene terephthalate, polypropylene, polyamide and their derivatives, EPDM-reinforced polypropylene and any combination thereof.
- the substantially undeformable rear element 4 is made of steel or an alloy thereof. In a still preferred embodiment, the substantially undeformable rear element 4 is made of aluminium or an alloy of aluminium. Preferably, the substantially undeformable rear element 4 is cast made.
- the chair 1 according to the invention also comprises a substantially undeformable front element 5 rotatably connected to the pivoting mechanism and to the undeformable rear element at two rotational points 46 visible (as said above), for example, in Figures 3a and 7 .
- the substantially undeformable front element 5 is C-shaped with a front transverse bar 51 and two side flanges 52 which terminate at the two rotational points 46.
- the two side flanges 52 are preferably L-shaped or in any case are reinforced by ribs 52' ( Figure 6 ).
- the chair 1 also comprises a perimetral frame 6.
- the perimetral frame 6 comprises two shoulders 61 (righthand shoulder and left-hand shoulder) and an upper reinforcing cross-piece 62.
- Each shoulder 61 is suitably substantially L-shaped, as shown in the various figures and in particular in Figures 9 and 10 .
- each shoulder 61 has a double profile, i.e. is formed by two parallel, flat, strips 61 a, 61 b which define between them a slit partially interrupted by partitions 61c which connect the two strips 61a, 61 b. Slots 63 for fixing a supporting fabric 8 are thus formed.
- Bushes or cylinder pieces 64 are also provided at each shoulder 61 ( Fig. 9 ).
- a central length 66 is provided without any partition 61 c.
- the shoulders 61 of the perimetral frame 6 are fixed to the flat side profiles 42 of the substantially undeformable rear element 4.
- the abovementioned side profiles 42 comprise listels 47 ( Figure 6 ) with holes.
- the two side flanges 52 of the substantially undeformable front element 5 have two listels 57 with holes.
- screws or similar threaded parts
- the listels of the substantially undeformable front element 5 and the substantially undeformable rear element 4 may be formed integrally with the said elements or may be separate parts joined afterwards by means of welding or using further threaded parts.
- the shoulders 61 of the perimetral frame 6 may be made of any material, but a material which is considered particularly suitable is nylon or a similar material owing to its elastic properties.
- the two shoulders 61 may be connected at the top by the abovementioned upper cross-piece 62.
- the term "deformable element” is therefore understood as meaning an element which performs the function of a seat and a backrest of a chair, being constrained to the hinging system of a parallelogram, and adapts to the movement of the said parallelogram according to its constructional characteristics and also to the characteristics of the seat or backrest (fabric, mesh or leather cover).
- the chair according to the invention is completed by a supporting fabric 8 tensioned between the two shoulders 61.
- the supporting fabric may be visible (for example a mesh fabric) or may be incorporated inside an upholstery article, i.e. could be covered by another fabric, or a leather or imitation leather lining without a supporting function.
- a first fixing zone (A) considered undeformable situated in the vicinity of the seat, where the lower parts of shoulders 61 are connected to the substantially undeformable front element 5
- a second zone (B) which is not connected to shoulders 61 and therefore is deformable and a third zone (C) which is considered undeformable (situated in the vicinity of the backrest, where the shoulders 61 are connected to the substantially undeformable rear element 4).
- the chair according to the invention provides a single structure with:
- a kind of deformable monostructure with a backrest zone and a seat zone formally differentiated by a connecting radius is thus formed. Deformation of the structure so as to allow the typical movement according to the type of pivoting mechanism used occurs in the zone of the connecting radius.
- the supporting fabric follows the movement of the structure and at the same time undergoes elastic deformation due to the weight of the person seated.
- the combination of these two deformation possibilities ensures a unique level of comfort.
- the seat and backrest support elements are joined together by a double articulation and form a rigid and unextendable structure when constrained to the hinging system of the parallelogram mechanism. Since the rotational points of the parallelogram allow rotation of the seat and the backrest at different angles, the definition "undeformable” refers to a rigid structure which adapts via the hinging points to the hinging of that parallelogram.
- Figure 3a shows the rotational points 46, 48 and 53 of the undeformable structure.
- Reference number 53 designates the rotational point between front transverse bar 51 and the pivoting mechanism 2.
- Reference number 46 designates, as said above, the rotational point between substantially undeformable rear element 4 and substantially undeformable front element 5.
- Reference number 48 designates the rotational point between the pivoting mechanism 2 and the substantially undeformable rear element 4.
- holes 49 are provided in the turned down saddle-shaped element 43 .
- Such holes 49 guide an oscillating movement as indicated by the double head harrow.
- properly shaped slots are provided in the pivoting mechanism 2 in correspondence of holes 49.
- a pivot (also not shown) is inserted in each of hole 49 and corresponding slot.
- Figure 11 shows a schematic cross-sectional view of a supporting cover 8 pre-tensioned between two shoulders 61.
- a hooking member 81 for engaging with a tooth 65 of the shoulder 61 with a double profile (61 and 62) is preferably fixed to the edges of the cover 8.
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
Description
- The present invention relates to a chair and in particular an ergonomic chair (or armchair).
- Ergonomic chairs are already known in the furnishings sector, in particular in the office furnishings and furniture sector. These chairs typically comprise a backrest and a seat supported by a support element generally resting rotatably on a floor via wheels (typically castor wheels). The known ergonomic chairs typically comprise a synchronised pivoting mechanism which allows the backrest and the seat to be inclined in a predetermined manner. Generally, when the backrest is inclined at an angle α (alpha), the seat is inclined at an angle (β) beta equal to about half the angle of the backrest. In other words, the backrest and the seat of the known ergonomic chairs move in unison, albeit with different degrees of pivoting.
- In the known ergonomic chairs the seat and the backrest are formed as two separate parts.
- Although these ergonomic chairs are fairly comfortable, especially when compared with chairs which have a fixed backrest, the Applicant has defined the aim of improving the comfort and therefore providing an ergonomic chair which is even more comfortable than the known ergonomic chairs.
- According to a first aspect, an ergonomic chair with a seat and a backrest is provided, the chair comprising:
- a pivoting mechanism;
- a substantially undeformable rear element connected to the pivoting mechanism and situated at the backrest;
- a substantially undeformable front element connected to the pivoting mechanism and situated at the seat;
- a deformable support frame connected to the substantially undeformable rear element and to the substantially undeformable front element; and
- a supporting cover tensioned on said support frame.
- Preferably, said deformable support frame comprises a pair of substantially L-shaped bars which define the profile of the backrest and the seat of the chair.
- In one embodiment, each of said L-shaped bars is rigidly connected to said substantially undeformable rear element at a section of the side which defines the backrest and is also rigidly connected to said substantially undeformable front element at a section of the side which defines the seat, the two connecting sections having, between them, a curved section which is not constrained to either one of the substantially undeformable rear and front elements.
- In one embodiment, the support frame also comprises an upper cross-piece for connecting the top ends of said L-shaped bars.
- Preferably, each of said L-shaped bars has a double-strip profile which defines slots for fixing, in a tensioned condition, the supporting cover.
- At least one part of said deformable support frame may be made of a plastic material, for example nylon.
- The substantially undeformable rear element may be profitably connected rotatably to said substantially undeformable front element.
- Said substantially undeformable rear element may be profitably hinged to the pivoting mechanism.
- Said substantially undeformable front element may be hinged to the pivoting mechanism.
- In one preferred embodiment, the substantially undeformable rear element and said substantially undeformable front element are made of aluminium or an alloy of aluminium.
- The present invention will become fully clear from a reading of the following detailed description, provided purely by way of a non-limiting example, to be read with reference to the accompanying sets of illustrative drawings in which:
-
Figure 1 is a schematic axonometric view of an ergonomic chair according to an embodiment of the invention, together with the supporting fabric; - -
Figure 2 is an axonometric view of the chair according toFigure 1 , without the supporting fabric; - -
Figure 3 is a side view of the chair according toFigure 1 , without the supporting fabric; - -
Figure 3a is an enlarged view which shows the rotational points of the undeformable structure with respect to the pivoting mechanism; - -
Figure 4 is a rear view of the chair according toFigure 1 , with the supporting fabric; - -
Figure 5 is a rear view of the chair according toFigure 1 , without the supporting fabric; - -
Figure 6 is an axonometric view of parts of the chair according toFigure 1 , showing the pivoting mechanism, the substantially undeformable rear element and the substantially undeformable front element; - -
Figure 7 is an axonometric rear side view showing the pivoting mechanism, the substantially undeformable rear element, the substantially undeformable front element and the deformable support frame; - -
Figure 8 shows the same components as inFigure 7 , but from a different angle; - -
Figures 9 and10 show the shoulders of the deformable structure; - -
Figure 11 is a cross-section which shows schematically the cover tensioned between two shoulders of the deformable support frame. - The ergonomic chair according to one embodiment of the invention and which is shown in the various figures is denoted overall by the
reference number 1. It comprises aconventional pivoting mechanism 2. In the embodiment shown, thepivoting mechanism 2 is supported by a central tubular structure 3 (typically with a pneumatic piston for varying the height of the seat from the ground) connected to a plurality ofarms 31. Each arm orradial element 31 terminates with a wheel 32 (typically a castor wheel). Alternatively, thechair 1 could be supported by legs with feet without wheels or by any other support structure. - The
pivoting mechanism 2 may be of any known type, typically a parallelogram pivoting mechanism, and will not be described in further detail. - According to the invention (
Figure 2 ), a substantially undeformablerear element 4 is connected to thepivoting mechanism 2. In a preferred embodiment, the substantially undeformablerear element 4 is connected to thepivoting mechanism 2 by means of a turned down saddle-shaped element 43. - In one embodiment, the substantially undeformable
rear element 4 comprises a curved substantiallyflat top bar 41 and twoflat side profiles 42 suitably shaped so as to define substantially the shape of the backrest.Top bar 41 andside profiles 42 form a sort of "C" shaped element. The twoflat side profiles 42 are shaped as can be seen more clearly in the various figures, for example as shown inFigure 2 and inFigures 6 to 8 . In the embodiment which is shown in the Figures, the twoside profiles 42 are rigidly connected to the turned down saddle-shaped element 43 atrotation points 46 and by screws 43'. In this manner, the "C" shaped element and the turned down saddle-shaped element 43 are rigidly connected to form a rigid component. The thus created closed profile is certainly more rigid than an open profile would be. - Connection blocks 44 (see
Figure 7 ) are suitable for connecting the backrest (not shown in the Figures). - The two
side profiles 42 are preferably reinforced withribs 45 which are visible, for example, inFigure 8 . InFigure 8 , as well as inFigures 6 and7 , it is also possible to see thepoints 46 of rotation of the substantially undeformablerear element 4 and of substantially undeformablefront element 5, which will be described more fully in the remainder of this description.Points 46 could be parts ofconnection blocks 44 or could be provided substantially at the end of the twoside profiles 42. - For the purposes of the present description, a "substantially undeformable element" is understood as meaning:
- a support element which is sufficiently rigid so as not to suffer visible deformation under load and which is able to support at least statically (but preferably also dynamically) the weight and the thrust exerted on the seat and on the backrest of a chair by a person of about 130 Kg;
- a rigid (undeformable and unextendable) rigid structure which, however, adapts to a parallelogram hinging movement via hinging points.
- The substantially undeformable
rear element 4 may be made of plastic, metallic or composite material, or a combination thereof. The term "plastic material", for the purposes of the present description, is intended to mean primarily a material different from metal and in particular a substantially thermoplastic material with elongation at break values ≥ 50% (during tensile tests performed on test pieces at 5 mm/min.) such as polycarbonate, polyester, polybutylene terephthalate, polypropylene, polyamide and their derivatives, EPDM-reinforced polypropylene and any combination thereof. - In one preferred embodiment, the substantially undeformable
rear element 4 is made of steel or an alloy thereof. In a still preferred embodiment, the substantially undeformablerear element 4 is made of aluminium or an alloy of aluminium. Preferably, the substantially undeformablerear element 4 is cast made. - The
chair 1 according to the invention also comprises a substantially undeformablefront element 5 rotatably connected to the pivoting mechanism and to the undeformable rear element at tworotational points 46 visible (as said above), for example, inFigures 3a and7 . - In one embodiment, the substantially undeformable
front element 5 is C-shaped with a fronttransverse bar 51 and twoside flanges 52 which terminate at the tworotational points 46. The twoside flanges 52 are preferably L-shaped or in any case are reinforced by ribs 52' (Figure 6 ). - The
chair 1 according to the invention also comprises aperimetral frame 6. Theperimetral frame 6 comprises two shoulders 61 (righthand shoulder and left-hand shoulder) and an upper reinforcingcross-piece 62. Eachshoulder 61 is suitably substantially L-shaped, as shown in the various figures and in particular inFigures 9 and10 . Preferably, eachshoulder 61 has a double profile, i.e. is formed by two parallel, flat, strips 61 a, 61 b which define between them a slit partially interrupted bypartitions 61c which connect the twostrips Slots 63 for fixing a supportingfabric 8 are thus formed. Bushes orcylinder pieces 64 are also provided at each shoulder 61 (Fig. 9 ). Preferably, a central length 66 is provided without anypartition 61 c. - The
shoulders 61 of theperimetral frame 6 are fixed to the flat side profiles 42 of the substantially undeformablerear element 4. In particular, the abovementioned side profiles 42 comprise listels 47 (Figure 6 ) with holes. In order to fix ashoulder 61 to the substantially undeformablerear element 4 typically screws (or similar threaded parts) are used, being inserted inside thebushes 64 of theshoulders 61 and inside the holes of thelistels 47. Similarly, still with reference toFigure 10 , the twoside flanges 52 of the substantially undeformablefront element 5 have twolistels 57 with holes. In order to fix ashoulder 61 to the substantially undeformablefront element 5 typically screws (or similar threaded parts) are used, being inserted inside thebushes 64 of theshoulders 61 and inside the holes of thelistels 57. - The listels of the substantially undeformable
front element 5 and the substantially undeformablerear element 4 may be formed integrally with the said elements or may be separate parts joined afterwards by means of welding or using further threaded parts. - The
shoulders 61 of theperimetral frame 6 may be made of any material, but a material which is considered particularly suitable is nylon or a similar material owing to its elastic properties. - The two
shoulders 61 may be connected at the top by the abovementionedupper cross-piece 62. - For the purposes of the present description, the term "deformable element" is therefore understood as meaning an element which performs the function of a seat and a backrest of a chair, being constrained to the hinging system of a parallelogram, and adapts to the movement of the said parallelogram according to its constructional characteristics and also to the characteristics of the seat or backrest (fabric, mesh or leather cover).
- As already mentioned, the chair according to the invention is completed by a supporting
fabric 8 tensioned between the twoshoulders 61. The supporting fabric may be visible (for example a mesh fabric) or may be incorporated inside an upholstery article, i.e. could be covered by another fabric, or a leather or imitation leather lining without a supporting function. - As shown in
Fig. 7 or inFig. 8 three separate zones are therefore formed: a first fixing zone (A) considered undeformable (situated in the vicinity of the seat, where the lower parts ofshoulders 61 are connected to the substantially undeformable front element 5), a second zone (B) which is not connected toshoulders 61 and therefore is deformable, and a third zone (C) which is considered undeformable (situated in the vicinity of the backrest, where theshoulders 61 are connected to the substantially undeformable rear element 4). - In this way it is possible to obtain an ergonomic chair provided with a pivoting mechanism which causes a synchronised movement of the backrest and the seat in absolute terms (movement of the backrest and the seat with respect to the ground) and in relative terms (movement of the backrest and the seat relative to each other).
- As described above, unlike the known solutions in which the backrest and the seat are two single components separate from each other, the chair according to the invention provides a single structure with:
- 1. A structural, perimetral and deformable frame 6 (deformable so as to allow the abovementioned "relative deformation");
- 2. A supporting fabric (where the weight of the person is supported elastically by the fabric itself which is tensioned between the two shoulders of the structural frame).
- A kind of deformable monostructure with a backrest zone and a seat zone formally differentiated by a connecting radius is thus formed. Deformation of the structure so as to allow the typical movement according to the type of pivoting mechanism used occurs in the zone of the connecting radius.
- The supporting fabric follows the movement of the structure and at the same time undergoes elastic deformation due to the weight of the person seated. The combination of these two deformation possibilities ensures a unique level of comfort.
- In the chair according to the present invention, the seat and backrest support elements are joined together by a double articulation and form a rigid and unextendable structure when constrained to the hinging system of the parallelogram mechanism. Since the rotational points of the parallelogram allow rotation of the seat and the backrest at different angles, the definition "undeformable" refers to a rigid structure which adapts via the hinging points to the hinging of that parallelogram.
Figure 3a shows therotational points -
Reference number 53 designates the rotational point between fronttransverse bar 51 and thepivoting mechanism 2.Reference number 46 designates, as said above, the rotational point between substantially undeformablerear element 4 and substantially undeformablefront element 5.Reference number 48 designates the rotational point between thepivoting mechanism 2 and the substantially undeformablerear element 4. - In the turned down saddle-shaped
element 43further holes 49 are provided.Such holes 49 guide an oscillating movement as indicated by the double head harrow. In this respect, properly shaped slots (not shown) are provided in thepivoting mechanism 2 in correspondence ofholes 49. A pivot (also not shown) is inserted in each ofhole 49 and corresponding slot. -
Figure 11 shows a schematic cross-sectional view of a supportingcover 8 pre-tensioned between twoshoulders 61. A hookingmember 81 for engaging with atooth 65 of theshoulder 61 with a double profile (61 and 62) is preferably fixed to the edges of thecover 8.
Claims (10)
- A chair (1) with a seat and a backrest, the chair comprising;• a pivoting mechanism (2);• a substantially undeformable rear element (4) connected to the pivoting mechanism (2) and situated at the backrest;• a substantially undeformable front element (5) connected to the pivoting mechanism (2) and situated at the seat;• a deformable support frame (6) connected to the substantially undeformable rear element (6) and to the substantially undeformable front element (5); and• a supporting cover (8) tensioned on said support frame.
- The chair (1) according to Claim 1, wherein said deformable support frame (6) comprises a pair of substantially L-shaped bars (6) which define the profile of the backrest and the seat of the chair (1).
- The chair (1) according to Claim 2, wherein each of said L-shaped bars (61) is rigidly connected to said substantially undeformable rear element (4) at a section of the side which defines the backrest and is also rigidly connected to said substantially undeformable front element (5) at a section of the side which defines the seat, the two connecting sections having, between them, a curved section which is not constrained to either one of the substantially undeformable rear and front elements (4, 5).
- The chair (1) according to Claim 2 or 3, wherein said support frame (6) also comprises an upper cross-piece (62) for connecting the top ends of said L-shaped bars.
- The chair (1) according to any one of Claims 2 to 4, wherein each of said L-shaped bars has a double-strip profile which defines slots for fixing, in a tensioned condition, the supporting cover.
- The chair (1) according to any one of the preceding claims, wherein at least one part of said deformable support frame (6) is made of a plastic material, for example nylon.
- The chair (1) according to any one of the preceding claims, wherein said substantially undeformable rear element (4) is connected rotatably (46) to said substantially undeformable front element (5).
- The chair (1) according to any one of the preceding claims, wherein said substantially undeformable rear element (4) is hinged to the pivoting mechanism (2).
- The chair (1) according to any one of the preceding claims, wherein said substantially undeformable front element (5) is hinged to the pivoting mechanism (2).
- The chair (1) according to any one of the preceding claims, wherein said substantially undeformable rear element (4) and said substantially undeformable front element (5) are made of aluminium or an alloy of aluminium.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT000685A ITMI20080685A1 (en) | 2008-04-15 | 2008-04-15 | ERGONOMIC CHAIR |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2110050A1 true EP2110050A1 (en) | 2009-10-21 |
EP2110050B1 EP2110050B1 (en) | 2010-12-01 |
Family
ID=40296943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09005270A Active EP2110050B1 (en) | 2008-04-15 | 2009-04-10 | Ergonomic Chair |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2110050B1 (en) |
AT (1) | ATE489873T1 (en) |
DE (1) | DE602009000396D1 (en) |
ES (1) | ES2355868T3 (en) |
IT (1) | ITMI20080685A1 (en) |
PT (1) | PT2110050E (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011105290A1 (en) | 2010-06-15 | 2011-12-15 | Claudia Plikat | "Chair" |
USD703457S1 (en) | 2013-06-07 | 2014-04-29 | Herman Miller, Inc. | Chair |
US9211014B2 (en) | 2011-12-08 | 2015-12-15 | Herman Miller, Inc. | Composite body support member and methods for the manufacture and recycling thereof |
EP3581066A1 (en) * | 2018-06-14 | 2019-12-18 | Rexsitt Italia S.r.l. | Office chair with synchronously movable backrest and seat |
USD910330S1 (en) * | 2019-12-05 | 2021-02-16 | 39F Usa Inc | Chair |
US10966527B2 (en) | 2017-06-09 | 2021-04-06 | Steelcase Inc. | Seating arrangement and method of construction |
US11096497B2 (en) | 2015-04-13 | 2021-08-24 | Steelcase Inc. | Seating arrangement |
US11109683B2 (en) | 2019-02-21 | 2021-09-07 | Steelcase Inc. | Body support assembly and method for the use and assembly thereof |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
US11324325B2 (en) | 2015-04-13 | 2022-05-10 | Steelcase Inc. | Seating arrangement |
US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
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EP0049310A1 (en) * | 1980-10-01 | 1982-04-14 | Wilkhahn Wilkening + Hahne GmbH + Co. | Working chair |
WO2002032260A1 (en) * | 2000-10-18 | 2002-04-25 | Enrico Cioncada | Armchair with variable position |
US20020190553A1 (en) * | 2001-06-15 | 2002-12-19 | Koepke Marcus C. | Ergonomic chair |
US20070290537A1 (en) * | 2006-06-13 | 2007-12-20 | Tung Yu Oa Co., Ltd. | Recliner |
-
2008
- 2008-04-15 IT IT000685A patent/ITMI20080685A1/en unknown
-
2009
- 2009-04-10 AT AT09005270T patent/ATE489873T1/en not_active IP Right Cessation
- 2009-04-10 PT PT09005270T patent/PT2110050E/en unknown
- 2009-04-10 DE DE602009000396T patent/DE602009000396D1/en active Active
- 2009-04-10 ES ES09005270T patent/ES2355868T3/en active Active
- 2009-04-10 EP EP09005270A patent/EP2110050B1/en active Active
Patent Citations (4)
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EP0049310A1 (en) * | 1980-10-01 | 1982-04-14 | Wilkhahn Wilkening + Hahne GmbH + Co. | Working chair |
WO2002032260A1 (en) * | 2000-10-18 | 2002-04-25 | Enrico Cioncada | Armchair with variable position |
US20020190553A1 (en) * | 2001-06-15 | 2002-12-19 | Koepke Marcus C. | Ergonomic chair |
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Also Published As
Publication number | Publication date |
---|---|
ITMI20080685A1 (en) | 2009-10-16 |
ES2355868T3 (en) | 2011-03-31 |
EP2110050B1 (en) | 2010-12-01 |
PT2110050E (en) | 2011-01-24 |
ATE489873T1 (en) | 2010-12-15 |
DE602009000396D1 (en) | 2011-01-13 |
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