EP2962602A1 - Chair - Google Patents
Chair Download PDFInfo
- Publication number
- EP2962602A1 EP2962602A1 EP15179945.9A EP15179945A EP2962602A1 EP 2962602 A1 EP2962602 A1 EP 2962602A1 EP 15179945 A EP15179945 A EP 15179945A EP 2962602 A1 EP2962602 A1 EP 2962602A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chair
- seat
- backrest
- pivot
- frame
- 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
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
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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
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
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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
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
- A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
- A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
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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
- A47C5/00—Chairs of special materials
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/002—Chair or stool bases
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
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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
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
- A47C7/445—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs
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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
- A47C9/00—Stools for specified purposes
- A47C9/002—Stools for specified purposes with exercising means or having special therapeutic or ergonomic effects
Definitions
- the invention relates to a chair with a deformable seat shell, which forms a seat part and a backrest, and a frame, wherein the seat part via a first pivot and the backrest are connected via a second pivot to the frame, wherein the pivot joints by a deforming the Seat shell allow conditional rotation of the seat part and the backrest relative to the frame.
- the frame of the chair disclosed therein comprises a foot portion and a seat base pivotally connected to the foot portion about a vertical axis.
- the seat base is connected to the seat part near the front edge of the seat via a first pivot which allows rotation about an axis of rotation oriented in the vertical direction of the chair.
- a backrest support is provided which comprises two L-shaped struts. In each case one end of the struts is rotatably mounted on each one end of a torsion bar of the seat base.
- the thus defined axis of rotation extends in the transverse direction of the chair and intersects the aligned in the vertical direction of rotation of the first rotary joint.
- the other ends of the struts are connected via a ball joint off-center with the backrest.
- the invention has the object underlying to provide a chair that the mobility of the DE 10 2011 001 811 A1 has known chair, but it is cheaper to produce.
- the "transverse direction" of the chair means any direction extending from one side of the chair (in particular a projection of the chair into a vertically aligned plane adjacent to this side of the chair) towards the other side of the chair (in particular a projection of the chair into a vertically aligned plane adjacent to this other side of the chair).
- the embodiment of the chair according to the invention thus provides an arrangement of the two pivot joints connecting the seat shell to the frame in the sagittal plane of a user of the chair.
- This makes it possible to achieve the desired mobility in conjunction with the deformable seat shell, wherein the number of parts required for the formation of the frame in comparison to that of the DE 10 2011 001 811 A1 known chair is reduced.
- a backrest support forming struts in the chair according to the DE 10 2011 001 811 A1 are connected via two pivot joints with a seat base and the backrest, a one-piece backrest support can be used, which is connected via only a rotary joint, which may be preferably in the form of a ball joint, connected to the backrest.
- the backrest support also integrates the first pivot joint, via which the frame is connected to the seat part of the seat shell.
- the first hinge allows rotation about at least one (possibly only this one) aligned in the vertical direction of the chair first axis of rotation.
- the second pivot allows twisting about at least one (possibly only this one) aligned in the longitudinal direction of the chair second axis of rotation.
- the "vertical direction" of the chair is understood to mean any direction that extends from an underside of the chair (in particular a projection of the chair into a horizontally oriented plane arranged below the chair) in the direction of an upper side of the chair (in particular a projection of the chair in FIG a plane horizontally oriented above the chair).
- the longitudinal direction of the chair is understood to mean any direction that extends from a rear side of the chair (in particular a projection of the chair into a vertically aligned plane behind the chair) in the direction of a front side of the chair (in particular a projection of the chair into a position on the chair) Front of the chair vertically aligned plane) extends.
- the seat part is still connected via at least one bearing with the frame, wherein the bearing is designed such that this obstructs a rotation of the seat part about an aligned in the longitudinal direction of the chair axis.
- the seat shell is given stability in the region of the seat part, which hinders lateral tilting of the seat shell in the region of the seat front edge in the event of an off-center loading by the user.
- the bearing especially in the vicinity of the seat leading edge, this does not hinder the intended deformability of the seat in the context of the use of the chair.
- the bearing can be functionally integrated into the first pivot.
- the bearing is formed separately from the first rotary joint and in particular is arranged at a distance therefrom in the transverse direction of the chair.
- at least two such bearings can be provided, which are arranged spaced on both sides of the first pivot bearing.
- a structurally simple and functionally advantageous embodiment of the or the bearing can provide that two bearing parts, one of which with the frame and the another is connected to the seat, are mutually displaceable in a transverse direction and longitudinal direction of the chair extending plane.
- the first hinge in the comprehensive half of the seat edge, preferably in the third or quarter of the seat leading edge and particularly preferably in the fifth seat covering the seat leading edge (each related on the extension of the seat part in the longitudinal direction of the chair) of the seat part is arranged.
- the second pivot is located above the body center of gravity of a (norm) user.
- the second rotary joint can be arranged in particular in the half of the backrest edge having the backrest (relative to the extent of the backrest in the vertical direction of the chair).
- (standard) user means the adult P95 percentile.
- a connected via the second pivot to the backrest backrest support of the frame is connected via a third pivot with a connected via the first pivot to the seat part seat base of the frame.
- the third pivot defines an aligned in the transverse direction of the chair axis of rotation.
- the third rotary joint is spaced apart from the first rotary joint in the longitudinal direction of the chair, thus the at least one axis of rotation defined by the first rotary joint and the at least one axis of rotation defined by the third rotary joint do not intersect.
- the chair according to the invention may preferably be provided that this is adjustable between at least an upright first position and a reclined second position, wherein an angle between the seat part and the backrest in the second position is greater than in the first position.
- Such a change in angle between the seat part and the backrest can be realized in a structurally simple manner by the backrest support L-shaped or arcuate, wherein a first leg of the L-shaped backrest support or a first half of the arcuate backrest support via the third hinge with the Seat base and a second leg of the L-shaped backrest support or a second half of the arcuate backrest support is connected via the second pivot to the backrest.
- the first hinge may further be preferred for the first hinge to rotate the seat part relative to the corresponding section of the frame about an axis of rotation oriented in the transverse direction of the chair and / or second pivot allows rotation of the backrest relative to the corresponding portion of the frame about a rotational axis aligned in the transverse direction of the chair.
- the frame is designed such that a rotation of the backrest support about the axis of rotation of the third pivot joint leads to a movement of the seat leading edge, possibly also of the first pivot, in the vertical direction of the chair.
- This functionality of the chair can be structurally advantageously implemented when the seat part, in particular via the first pivot, is fixed to a cross member, wherein the cross member rotatably with a lever (in particular at one end of this lever) and the lever (in particular at its other end ) is rotatably connected to the seat base and wherein a rotational movement of the lever relative to the seat base is coupled via a rod with a rotational movement of the backrest support about the axis of rotation of the third pivot joint.
- this may preferably be formed as a swivel chair, in which a connected via the first pivot to the seat part seat base of the frame is connected via a hinge with a foot part of the frame.
- the seat of the chair may preferably be integrally formed, so that the seat part and the backrest (further preferably in one piece) merge into one another.
- the seat shell comprises a seat part and a backrest, which are designed as separate components, and a frame connecting the seat part and the backrest.
- the frame may preferably be formed as centrally arranged with respect to the transverse direction of the chair, for example, L-shaped or arcuate extending beams.
- the deformation of the seat shell is made possible or absorbed, in particular, by the frame.
- an embodiment of the frame in the form of a (single or multilayer) leaf spring may be advantageous.
- Such an embodiment of the seat of the chair according to the invention makes it possible to form the seat part and the backrest as relatively rigid components, while the easily deformable frame ensures the deformability of the seat shell overall at relatively low forces.
- Such a chair according to the invention can also be advantageously designed so that the seat part in the longitudinal direction of the chair and / or the backrest in the vertical direction of the chair slidably mounted on the frame is / are.
- the displacement can be provided only temporarily after a release of a locking device. This allows the best possible adaptation of the seat to different body dimensions of users.
- the in the Fig. 1 to 5 The chair shown comprises a frame 1 and a seat shell 2 connected to the frame 1.
- the frame 1 is substantially rigid. This is thus designed so that it does not functionally deform in a proper use of the chair.
- the frame 1 may be integrally formed, for example, welded together pipes. It forms, for example, as shown, four feet, over which the chair is placed on a substrate.
- the seat shell 2 is formed integrally, so that a section used as a seat part 3 merges into a section of the seat shell 2 used as the backrest 4.
- the seat shell 2 in one or more parts may be formed (see also FIGS. 14 and 15 ).
- the seat is connected via two hinges 5, 6 with the frame 1.
- a first pivot 5 is arranged in the vicinity of the seat leading edge 7 of the seat shell 2. With respect to the transverse direction of the chair, the first pivot 5 is centered and thus positioned approximately in the sagittal plane of a user of the chair.
- the first rotary joint 5 makes it possible to rotate the portion of the seat shell 2 which is connected to this rotary joint 5, specifically essentially the whole Seat part 3, relative to the corresponding portion of the frame 1 (the seat base 8) about a first axis of rotation 9.
- This first axis of rotation 9 extends in the vertical direction of the chair. Specifically, this is approximately vertically aligned (standing on a horizontal surface chair).
- the first pivot 5 may be formed such that a pin 10 connected to the seat base 8 (or seat portion 3) is rotatably supported in a sleeve 11 connected to the seat portion 3 (or seat base 8).
- a second pivot 6 connects the seat 2 in the region of the backrest 4 with a backrest support 12 of the frame 1.
- the second pivot 6 is centered with respect to the transverse direction of the chair and thus - as well as the first pivot 5 - approximately in the sagittal plane of a user of the chair.
- the second pivot 6 is designed as a ball joint. This thus allows rotation of the backrest 4 relative to the backrest support 12 about a plurality of axes, including at least one extending in the longitudinal direction of the chair second rotation axis thirteenth
- the inventive storage of the seat 2 allows a caused by a shift in weight of a user deformation of the seat 2, in which it is moved in the transition from the seat part 3 to the backrest 4 to one side, while the seat leading edge 7 and the backrest edge 14 in the direction of the other Inclined side (cf. Fig. 3 and 11 ).
- the seat part 3 of the seat 2 is still connected via two bearings 15 to the frame 1.
- a bearing 15 is arranged in the transverse direction of the chair spaced from the first pivot bearing 5.
- the bearings 15 are in the height of the first pivot bearing 5 and the seat leading edge 7.
- the two bearings 15 are formed such that they support at least one load against the vertical direction, ie from top to bottom, ie prevent. This prevents twisting of the front portion of the seat part 3 about an axis oriented in the longitudinal direction of the chair, and consequently a tilting of a user together with the seat pan 2 to the side.
- the bearings 15 are designed such that a relative movement of the seat part 3 to the frame 1 in Area of the bearing 15 in a plane which extends in the longitudinal and transverse directions of the chair, is possible (see. 4 and 5 such as FIGS. 12 and 13 ). As a result, the desired deformability of the seat shell 2 is not hindered by the bearings 15.
- This mobility of the bearing 15 can be achieved by each two bearing parts slidably rest on each other and thereby form a corresponding slide bearing. In this case, a bearing part connected to the frame 1 or formed by this and the other bearing part connected to the seat part 3 of the seat shell 2 or be formed by this.
- bearings 15 also each have a load in the vertical direction, i. from bottom to top, it can be provided that one of the bearing parts of each bearing 15 forms a slot through which extends a guide pin of the other bearing part, wherein the edge of the slot at least one side, preferably two-sided in one of the guide pin in his Sheath trained groove engages.
- the in the 6 and 7 as well as 10 to 13 illustrated chair differs from that in the Fig. 1 to 5
- the backrest support 12 of the frame 1 is structurally separated from the seat base 8 of the frame 1 and formed via a third pivot 16 about a third axis of rotation 17 extending in the transverse direction of the chair extends, rotatably connected to the seat base 8.
- the third axis of rotation 17 in this case runs in the vicinity of the first rotary joint 5.
- the third axis of rotation 17 intersects the first axis of rotation 9 extending in the vertical direction and formed by the first rotary joint 5.
- the backrest support 12 is L-shaped, wherein the free end of the one leg is connected via the second pivot 6 with the backrest 4 of the seat shell 2 and the free end of the other leg via the third pivot 16 with the seat base 8.
- the backrest support 12 may just as well also be arcuate.
- the first pivot 5 and the second pivot 6 are formed so that this rotation of the corresponding portion of the seat 2 relative to the corresponding portion of the frame 1 in each case also aligned about a transversely of the chair , Fourth axis of rotation 18 and fifth axis of rotation 19 allow.
- This rotation results in the second pivot 6 of its configuration as a ball joint.
- the first rotary joint 5 as a ball joint or otherwise with two about the respective axes of rotation 9, 18 movably interconnected hinge parts form.
- the pin 10 (or the sleeve 11) is connected to a cross member, at the end of which also engages the corresponding end of the L-shaped backrest support 12.
- the cross member may be rotatably mounted in the seat base 8, while the backrest support 12 and / or the pin 10 (or the sleeve 11) can firmly engage the cross member.
- the cross member rotatably mounted in the seat base 8 in this case forms the third pivot 16 and a part of the first pivot joint 5. It is also possible that the cross member is firmly integrated into the seat base 8, while the backrest support 12 and the pin 10 (or the sleeve 11) are rotatably attached thereto.
- the (direct) distance between the fourth axis of rotation 18 and the second pivot point 6 changes when the seat pan 2 tilts back leads to a deformation of the seat shell 2, in which an angle formed between the seat part 3 and the backrest 4 angle ⁇ increases ( ⁇ 1 ⁇ 2 ).
- the in the 6 and 7 and 10 to 13 illustrated chair is also designed as a swivel chair.
- the seat base 8 of the frame 1 via a fourth pivot 20 about a extending in the vertical direction of the chair, specifically approximately vertically aligned sixth axis of rotation 21 is rotatably connected to a foot part 22 of the frame 1 shown only partially.
- the in the in the 8 and 9 as well as 10 to 13 illustrated chair differs from that in the 6 and 7 and 10 to 13 illustrated chair, in particular by an additional kinematics, which ensures that a tilting back of the seat 2 with a lifting (in the vertical direction) of the first pivot 5 and thus the seat leading edge 7 is accompanied.
- the third rotary joint 16 via which the backrest support 12 is connected to the seat base 8, is set back.
- two (each one on each side of the backrest support 12) rods 23 are rotatably connected to the backrest support 12 about a seventh axis of rotation 24.
- the seventh axis of rotation 24 is arranged at a distance from the third axis of rotation 17 formed by the third pivot bearing 16.
- the rods 23 extend to one end of a respective lever 25 with which they are rotatably connected about an eighth axis of rotation 26 extending in the transverse direction of the chair.
- the respective other end of the lever 25 is rotatably connected to the seat base 8 about a ninth axis of rotation 27 extending in the transverse direction of the chair.
- the ninth axis of rotation 27 is positioned approximately as the third axis of rotation 17 in the chair according to the 6 and 7 ,
- the first pivot 5 is connected via a cross member with the two rods 23 in the vicinity of the eighth axis of rotation. However, this can also be connected to the two levers 25, again in the vicinity of the eighth axis of rotation.
- FIGS. 14 and 15 show an embodiment of a chair according to the invention, which differs from that of the 8 and 9 differs in that the seat shell 2 is not integral but a plurality of parts.
- This comprises a seat part 3 and a backrest 4, which are formed as separate and spaced-apart components, which are interconnected via a frame.
- the frame is essentially that component of the seat 2, which allows the deformability of the seat 2.
- the frame is formed as a centrally disposed with respect to the transverse direction of the chair guide rail on which the seat part 3 and the backrest 4 are guided longitudinally displaceable.
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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)
Abstract
Ein Stuhl mit einer verformbaren Sitzschale (2), die einen Sitzteil (3) und eine Rückenlehne (4) ausbildet, und einem Gestell (1), wobei der Sitzteil (3) über ein erstes Drehgelenk (5) und die Rückenlehne (4) über ein zweites Drehgelenk (6) mit dem Gestell (1) verbunden sind, wobei die Drehgelenke (5, 6) ein durch ein Verformen der Sitzschale (2) bedingtes Verdrehen des Sitzteils (3) und der Rückenlehne (4) relativ zu dem Gestell (1) ermöglichen, ist dadurch gekennzeichnet, dass das zweite Drehgelenk (6) mittig bezüglich der Querrichtung des Stuhls mit der Rückenlehne (4) verbunden ist (Fig. 3).A chair with a deformable seat shell (2), which forms a seat part (3) and a backrest (4), and a frame (1), wherein the seat part (3) has a first pivot (5) and the backrest (4) via a second pivot (6) are connected to the frame (1), wherein the hinges (5, 6) by a deformation of the seat (2) conditional twisting of the seat part (3) and the backrest (4) relative to the frame (1) is characterized in that the second pivot (6) is connected centrally with respect to the transverse direction of the chair to the backrest (4) (Figure 3).
Description
Die Erfindung betrifft einen Stuhl mit einer verformbaren Sitzschale, die einen Sitzteil und eine Rückenlehne ausbildet, und einem Gestell, wobei der Sitzteil über ein erstes Drehgelenk und die Rückenlehne über ein zweites Drehgelenk mit dem Gestell verbunden sind, wobei die Drehgelenke ein durch ein Verformen der Sitzschale bedingtes Verdrehen des Sitzteils und der Rückenlehne relativ zu dem Gestell ermöglichen.The invention relates to a chair with a deformable seat shell, which forms a seat part and a backrest, and a frame, wherein the seat part via a first pivot and the backrest are connected via a second pivot to the frame, wherein the pivot joints by a deforming the Seat shell allow conditional rotation of the seat part and the backrest relative to the frame.
Ein solcher Stuhl ist aus der
Ausgehend von diesem Stand der Technik hat der Erfindung die Aufgabe zugrunde gelegen, einen Stuhl anzugeben, der die Beweglichkeit des aus der
Diese Aufgabe wird mittels eines Stuhls gemäß dem Patentanspruch 1 gelöst. Vorteilhafte Ausgestaltungen davon sind Gegenstand der weiteren Patentansprüche und ergeben sich aus der nachfolgenden Beschreibung der Erfindung.This object is achieved by means of a chair according to
Ein gattungsgemäßer Stuhl mit einer (im Rahmen einer vorgesehenen Nutzung) verformbaren Sitzschale, die einen Sitzteil und eine Rückenlehne (vorzugsweise einstückig) ausbildet, und einem Gestell, wobei der Sitzteil über ein erstes Drehgelenk und die Rückenlehne über ein zweites Drehgelenk mit dem Gestell verbunden sind, wobei die Drehgelenke ein durch ein Verformen der Sitzschale bedingtes Verdrehen des Sitzteils und der Rückenlehne relativ zu dem Gestell ermöglichen, ist erfindungsgemäß dadurch gekennzeichnet, dass das zweite Drehgelenk mittig bezüglich der Querrichtung des Stuhls mit der Rückenlehne verbunden ist.A generic chair with a (in the context of a proposed use) deformable seat shell, a seat part and a backrest (preferably integral), and a frame, wherein the seat part are connected via a first pivot and the backrest via a second pivot joint with the frame, the hinges allow a conditional by deforming the seat shell twisting of the seat part and the backrest relative to the frame, is inventively characterized in that the second pivot is connected centrally with respect to the transverse direction of the chair with the backrest.
Dabei wird unter der "Querrichtung" des Stuhls jede Richtung verstanden, die sich von einer Seite des Stuhls (insbesondere einer Projektion des Stuhls in eine neben dieser Seite des Stuhls angeordnete, vertikal ausgerichtete Ebene) in Richtung der anderen Seite des Stuhls (insbesondere einer Projektion des Stuhls in eine neben dieser anderen Seiten des Stuhls angeordnete, vertikal ausgerichtete Ebene) erstreckt.In this case, the "transverse direction" of the chair means any direction extending from one side of the chair (in particular a projection of the chair into a vertically aligned plane adjacent to this side of the chair) towards the other side of the chair (in particular a projection of the chair into a vertically aligned plane adjacent to this other side of the chair).
Die erfindungsgemäße Ausgestaltung des Stuhls sieht somit eine Anordnung der zwei die Sitzschale mit dem Gestell verbindenden Drehgelenke in der Sagittalebene eines Nutzers des Stuhl vor. Dies ermöglicht die Verwirklichung der gewünschten Beweglichkeit in Verbindung mit der verformbaren Sitzschale, wobei die Anzahl der für die Ausbildung des Gestells benötigten Teile im Vergleich zu dem aus der
Um eine möglichst weitgehende Verformung der Sitzschale zuzulassen, kann vorzugsweise vorgesehen sein, dass das erste Drehgelenk ein Verdrehen um zumindest eine (gegebenenfalls ausschließlich diese eine) in Hochrichtung des Stuhls ausgerichtete erste Drehachse ermöglicht. Ebenso kann vorgesehen sein, dass das zweite Drehgelenk ein Verdrehen um zumindest eine (gegebenenfalls ausschließlich diese eine) in Längsrichtung des Stuhls ausgerichtete zweite Drehachse ermöglicht.In order to permit as far as possible deformation of the seat shell, it can preferably be provided that the first hinge allows rotation about at least one (possibly only this one) aligned in the vertical direction of the chair first axis of rotation. Likewise, it can be provided that the second pivot allows twisting about at least one (possibly only this one) aligned in the longitudinal direction of the chair second axis of rotation.
Dabei wird unter der "Hochrichtung" des Stuhls jede Richtung verstanden, die sich von einer Unterseite des Stuhls (insbesondere einer Projektion des Stuhls in eine unterhalb des Stuhls angeordnete, horizontal ausgerichtete Ebene) in Richtung einer Oberseite des Stuhls (insbesondere einer Projektion des Stuhls in eine oberhalb des Stuhls horizontal ausgerichtete Ebene) erstreckt. Dementsprechend wird unter Längsrichtung des Stuhls jede Richtung verstanden, die sich von einer Rückseite des Stuhls (insbesondere einer Projektion des Stuhls in eine hinter dem Stuhl angeordnete, vertikal ausgerichtete Ebene) in Richtung einer Vorderseite des Stuhls (insbesondere einer Projektion des Stuhls in eine auf der Vorderseite des Stuhls vertikal ausgerichtete Ebene) erstreckt.Here, the "vertical direction" of the chair is understood to mean any direction that extends from an underside of the chair (in particular a projection of the chair into a horizontally oriented plane arranged below the chair) in the direction of an upper side of the chair (in particular a projection of the chair in FIG a plane horizontally oriented above the chair). Accordingly, the longitudinal direction of the chair is understood to mean any direction that extends from a rear side of the chair (in particular a projection of the chair into a vertically aligned plane behind the chair) in the direction of a front side of the chair (in particular a projection of the chair into a position on the chair) Front of the chair vertically aligned plane) extends.
In einer bevorzugten Ausgestaltung des erfindungsgemäßen Stuhls kann vorgesehen sein, dass der Sitzteil noch über mindestens ein Lager mit dem Gestell verbunden ist, wobei das Lager derart ausgebildet ist, dass dieses ein Verdrehen des Sitzteils um eine in Längsrichtung des Stuhls ausgerichtete Achse behindert. Dadurch wird der Sitzschale im Bereich des Sitzteils eine Stabilität gegeben, die ein seitliches Verkippen der Sitzschale im Bereich der Sitzvorderkante bei einer außermittigen Belastung durch den Nutzer behindert. Bei entsprechender Positionierung des Lagers, insbesondere in der Nähe der Sitzvorderkante, behindert dieses dabei auch nicht die vorgesehene Verformbarkeit der Sitzschale im Rahmen der Nutzung des Stuhls.In a preferred embodiment of the chair according to the invention can be provided that the seat part is still connected via at least one bearing with the frame, wherein the bearing is designed such that this obstructs a rotation of the seat part about an aligned in the longitudinal direction of the chair axis. As a result, the seat shell is given stability in the region of the seat part, which hinders lateral tilting of the seat shell in the region of the seat front edge in the event of an off-center loading by the user. With appropriate positioning of the bearing, especially in the vicinity of the seat leading edge, this does not hinder the intended deformability of the seat in the context of the use of the chair.
Das Lager kann funktional in das erste Drehgelenk integriert sein. Vorteilhaft kann jedoch sein, wenn das Lager separat von dem ersten Drehgelenk ausgebildet ist und insbesondere von diesem in Querrichtung des Stuhls beabstandet angeordnet ist. Besonders bevorzugt können mindestens zwei solcher Lager vorgesehen sein, die beidseitig beabstandet des ersten Drehlagers angeordnet sind.The bearing can be functionally integrated into the first pivot. However, it can be advantageous if the bearing is formed separately from the first rotary joint and in particular is arranged at a distance therefrom in the transverse direction of the chair. Particularly preferably, at least two such bearings can be provided, which are arranged spaced on both sides of the first pivot bearing.
Eine konstruktiv einfache und funktional vorteilhafte Ausgestaltung des oder der Lager kann vorsehen, dass zwei Lagerteile, von denen eines mit dem Gestell und das andere mit der Sitzschale verbunden ist, zueinander in einer sich in Querrichtung und Längsrichtung des Stuhls erstreckenden Ebene verschiebbar sind.A structurally simple and functionally advantageous embodiment of the or the bearing can provide that two bearing parts, one of which with the frame and the another is connected to the seat, are mutually displaceable in a transverse direction and longitudinal direction of the chair extending plane.
Um eine möglichst weitgehende Verformung der Sitzschale zuzulassen, kann bei dem erfindungsgemäßen Stuhl weiterhin vorgesehen sein, dass das erste Drehgelenk in der die Sitzvorderkante umfassenden Hälfte, vorzugsweise in dem die Sitzvorderkante umfassenden Drittel oder Viertel und besonders bevorzugt in dem die Sitzvorderkante umfassenden Fünftel (jeweils bezogen auf die Erstreckung des Sitzteils in Längsrichtung des Stuhls) des Sitzteils angeordnet ist.In order to allow as far as possible deformation of the seat, it may further be provided in the chair according to the invention that the first hinge in the comprehensive half of the seat edge, preferably in the third or quarter of the seat leading edge and particularly preferably in the fifth seat covering the seat leading edge (each related on the extension of the seat part in the longitudinal direction of the chair) of the seat part is arranged.
Dem gleichen Zweck kann dienen, wenn das zweite Drehgelenk oberhalb des Körperschwerpunkts eines (Norm-)Nutzers angeordnet ist. Dabei kann das zweite Drehgelenk insbesondere in der die obere Rückenlehnenkante aufweisenden Hälfte (bezogen auf die Erstreckung der Rückenlehne in Hochrichtung des Stuhls) der Rückenlehne angeordnet sein.The same purpose may be served if the second pivot is located above the body center of gravity of a (norm) user. In this case, the second rotary joint can be arranged in particular in the half of the backrest edge having the backrest (relative to the extent of the backrest in the vertical direction of the chair).
Dabei wird unter "(Norm-)Nutzer" beispielsweise das P95-Perzentil der erwachsenen Personen verstanden.For example, "(standard) user" means the adult P95 percentile.
In einer weiterhin bevorzugten Ausgestaltung des erfindungsgemäßen Stuhls kann vorgesehen sein, dass ein über das zweite Drehgelenk mit der Rückenlehne verbundener Rückenlehnenträger des Gestells über ein drittes Drehgelenk mit einer über das erste Drehgelenk mit dem Sitzteil verbundenen Sitzbasis des Gestells verbunden ist. Dabei definiert das dritte Drehgelenk eine in Querrichtung des Stuhls ausgerichtete Drehachse. Insbesondere kann vorgesehen sein, dass das dritte Drehgelenk in Längsrichtung des Stuhls von dem ersten Drehgelenk beabstandet ist, sich somit die von dem ersten Drehgelenk definierte, mindestens eine Drehachse und die von dem dritten Drehgelenk definierte, mindestens eine Drehachse nicht schneiden. Durch eine solche Ausgestaltung des erfindungsgemäßen Stuhls wird eine Neigungsbeweglichkeit für den Stuhl geschaffen, die von Nutzern regelmäßig als komfortabel empfunden wird.In a further preferred embodiment of the chair according to the invention can be provided that a connected via the second pivot to the backrest backrest support of the frame is connected via a third pivot with a connected via the first pivot to the seat part seat base of the frame. In this case, the third pivot defines an aligned in the transverse direction of the chair axis of rotation. In particular, it can be provided that the third rotary joint is spaced apart from the first rotary joint in the longitudinal direction of the chair, thus the at least one axis of rotation defined by the first rotary joint and the at least one axis of rotation defined by the third rotary joint do not intersect. By such an embodiment of the chair according to the invention a tilt mobility for the chair is created, which is regularly perceived by users as comfortable.
Als besonders komfortabel wird eine solche Neigungsbeweglichkeit empfunden, wenn ein Zurücklehnen mit einer zumindest geringfügigen Körperstreckung verbunden ist. Demnach kann bei dem erfindungsgemäßen Stuhl vorzugsweise vorgesehen sein, dass dieser zwischen wenigstens einer aufrechten ersten Stellung und einer zurückgeneigten zweiten Stellung verstellbar ist, wobei ein Winkel zwischen Sitzteil und Rückenlehne in der zweiten Stellung größer als in der ersten Stellung ist.Such a tilt mobility is perceived as particularly comfortable when reclining is associated with at least slight extension of the body. Accordingly, in the chair according to the invention may preferably be provided that this is adjustable between at least an upright first position and a reclined second position, wherein an angle between the seat part and the backrest in the second position is greater than in the first position.
Eine solche Winkelveränderung zwischen dem Sitzteil und der Rückenlehne kann auf konstruktiv einfache Weise realisiert werden, indem der Rückenlehnenträger L-förmig oder bogenförmig ausgebildet ist, wobei ein erster Schenkel des L-förmigen Rückenlehnenträgers oder eine erste Hälfte des bogenförmigen Rückenlehnenträgers über das dritte Drehgelenk mit der Sitzbasis und ein zweiter Schenkel des L-förmigen Rückenlehnenträgers oder eine zweite Hälfte des bogenförmigen Rückenlehnenträgers über das zweite Drehgelenk mit der Rückenlehne verbunden ist.Such a change in angle between the seat part and the backrest can be realized in a structurally simple manner by the backrest support L-shaped or arcuate, wherein a first leg of the L-shaped backrest support or a first half of the arcuate backrest support via the third hinge with the Seat base and a second leg of the L-shaped backrest support or a second half of the arcuate backrest support is connected via the second pivot to the backrest.
Um insbesondere bei der Realisierung einer Neigungsbeweglichkeit des Stuhls eine unvorteilhafte Verformung der Sitzschale zu vermeiden, kann weiterhin bevorzugt vorgesehen sein, dass das erste Drehgelenk ein Verdrehen des Sitzteils relativ zu dem entsprechenden Abschnitt des Gestells um eine in Querrichtung des Stuhls ausgerichtete Drehachse und/oder das zweite Drehgelenk ein Verdrehen der Rückenlehne relativ zu dem entsprechenden Abschnitt des Gestells um eine in Querrichtung des Stuhls ausgerichtete Drehachse ermöglicht.In order to avoid an unfavorable deformation of the seat shell, in particular in the realization of a tilting mobility of the chair, it may further be preferred for the first hinge to rotate the seat part relative to the corresponding section of the frame about an axis of rotation oriented in the transverse direction of the chair and / or second pivot allows rotation of the backrest relative to the corresponding portion of the frame about a rotational axis aligned in the transverse direction of the chair.
Als besonders komfortabel wird möglicherweise empfunden, wenn bei einem Zurückneigen der Rückenlehne gleichzeitig ein Anheben des Sitzteils, insbesondere der Sitzvorderkante des Sitzteils erfolgt. Demnach kann vorzugsweise vorgesehen sein, dass das Gestell derart ausgebildet ist, dass ein Verdrehen des Rückenlehnenträgers um die Drehachse des dritten Drehgelenks zu einer Bewegung der Sitzvorderkante, gegebenenfalls auch des ersten Drehgelenks, in Hochrichtung des Stuhls führt.It may be perceived as particularly comfortable when, at the time of leaning back of the backrest, the seat part, in particular the front edge of the seat part, is raised at the same time. Accordingly, it can preferably be provided that the frame is designed such that a rotation of the backrest support about the axis of rotation of the third pivot joint leads to a movement of the seat leading edge, possibly also of the first pivot, in the vertical direction of the chair.
Diese Funktionalität des Stuhls kann konstruktiv vorteilhaft umgesetzt werden, wenn das Sitzteil, insbesondere über das erste Drehgelenk, an einem Querträger fixiert ist, wobei der Querträger drehbar mit einem Hebel (insbesondere an einem Ende dieses Hebels) und der Hebel (insbesondere an seinem anderen Ende) drehbar mit der Sitzbasis verbunden ist und wobei eine Drehbewegung des Hebels relativ zu der Sitzbasis über eine Stange mit einer Drehbewegung des Rückenlehnenträger um die Drehachse des dritten Drehgelenks gekoppelt ist.This functionality of the chair can be structurally advantageously implemented when the seat part, in particular via the first pivot, is fixed to a cross member, wherein the cross member rotatably with a lever (in particular at one end of this lever) and the lever (in particular at its other end ) is rotatably connected to the seat base and wherein a rotational movement of the lever relative to the seat base is coupled via a rod with a rotational movement of the backrest support about the axis of rotation of the third pivot joint.
Wiederum um den Komfort bei der Nutzung des Stuhls zu verbessern, kann dieser vorzugsweise als Drehstuhl ausgebildet sein, bei dem eine über das erste Drehgelenk mit dem Sitzteil verbundene Sitzbasis des Gestells über ein Drehgelenk mit einem Fußteil des Gestells verbunden ist.Again, to improve the comfort in the use of the chair, this may preferably be formed as a swivel chair, in which a connected via the first pivot to the seat part seat base of the frame is connected via a hinge with a foot part of the frame.
Die Sitzschale des Stuhls kann vorzugsweise integral ausgebildet sein, so dass der Sitzteil und die Rückenlehne (weiterhin bevorzugt einstückig) ineinander übergehen.The seat of the chair may preferably be integrally formed, so that the seat part and the backrest (further preferably in one piece) merge into one another.
Alternativ kann aber auch vorgesehen sein, dass die Sitzschale einen Sitzteil und eine Rückenlehne, die als separate Bauteile ausgebildet sind, sowie einen den Sitzteil und die Rückenlehne verbindenden Rahmen umfasst. Der Rahmen kann vorzugsweise als mittig bezüglich der Querrichtung des Stuhls angeordneter, beispielsweise L-förmiger oder bogenförmig verlaufender Balken ausgebildet sein. Dabei kann weiterhin bevorzugt vorgesehen sein, dass die Deformation der Sitzschale insbesondere von dem Rahmen ermöglicht bzw. aufgenommen wird. Dafür kann beispielsweise eine Ausgestaltung des Rahmens in Form einer (ein- oder mehrschichtigen) Blattfeder vorteilhaft sein. Eine solche Ausgestaltung der Sitzschale des erfindungsgemäßen Stuhls ermöglicht, den Sitzteil und die Rückenlehne als relativ steife Bauteile auszubilden, während der leicht deformierbare Rahmen die Deformierbarkeit der Sitzschale insgesamt bei relativ geringen Kräften gewährleistet.Alternatively, however, it can also be provided that the seat shell comprises a seat part and a backrest, which are designed as separate components, and a frame connecting the seat part and the backrest. The frame may preferably be formed as centrally arranged with respect to the transverse direction of the chair, for example, L-shaped or arcuate extending beams. In this case, it may further be preferred that the deformation of the seat shell is made possible or absorbed, in particular, by the frame. For example, an embodiment of the frame in the form of a (single or multilayer) leaf spring may be advantageous. Such an embodiment of the seat of the chair according to the invention makes it possible to form the seat part and the backrest as relatively rigid components, while the easily deformable frame ensures the deformability of the seat shell overall at relatively low forces.
Ein solcher erfindungsgemäßer Stuhl kann zudem weiter vorteilhaft derart konstruiert sein, dass der Sitzteil in Längsrichtung des Stuhls und/oder die Rückenlehne in Hochrichtung des Stuhls verschiebbar an dem Rahmen gelagert ist/sind. Dabei kann die Verschiebbarkeit nur temporär nach einem Lösen einer Sperrvorrichtung vorgesehen sein. Dies ermöglicht eine möglichst optimale Anpassung der Sitzschale an unterschiedliche Körperdimensionen von Nutzern.Such a chair according to the invention can also be advantageously designed so that the seat part in the longitudinal direction of the chair and / or the backrest in the vertical direction of the chair slidably mounted on the frame is / are. The displacement can be provided only temporarily after a release of a locking device. This allows the best possible adaptation of the seat to different body dimensions of users.
Die Erfindung wird nachfolgend anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher erläutert. In den Zeichnungen zeigt, jeweils schematisch:
- Fig. 1:
- eine Seitenansicht eines erfindungsgemäßen Stuhls in einer ersten Ausführungsform;
- Fig. 2:
- eine Ansicht von hinten auf den Stuhl gemäß der
Fig. 1 mit unverformter Sitzschale; - Fig. 3:
- eine Ansicht gemäß der
Fig. 2 bei verformter Sitzschale des Stuhls; - Fig. 4:
- eine Ansicht von oben auf den Stuhl gemäß der
Fig. 1 mit unverformter Sitzschale; - Fig. 5:
- eine Ansicht gemäß der
Fig. 4 bei verformter Sitzschale des Stuhls; - Fig. 6:
- eine Seitenansicht eines erfindungsgemäßen Stuhls in einer zweiten Ausführungsform in aufrechter Stellung der Sitzschale;
- Fig. 7:
- eine Ansicht gemäß der
Fig. 6 in zurückgeneigter Stellung der Sitzschale; - Fig. 8:
- eine Seitenansicht eines erfindungsgemäßen Stuhls in einer dritten Ausführungsform in aufrechter Stellung der Sitzschale;
- Fig. 9:
- eine Ansicht gemäß der
Fig. 8 in zurückgeneigter Stellung der Sitzschale; - Fig. 10:
- eine Ansicht von hinten auf einen Stuhl gemäß den
Fig. 6 mit unverformter Sitzschale;bis 9 - Fig. 11:
- eine Ansicht gemäß der
Fig. 10 bei verformter Sitzschale; - Fig. 12:
- eine Ansicht von oben auf einen Stuhl gemäß den
Fig. 6 mit unverformter Sitzschale in aufrechter Stellung;bis 9 - Fig. 13:
- eine Ansicht gemäß der
Fig. 12 bei verformter Sitzschale und in zurückgeneigter Stellung; - Fig. 14:
- eine Seitenansicht eines erfindungsgemäßen Stuhls in einer vierten Ausführungsform in aufrechter Stellung der Sitzschale; und
- Fig. 15:
- eine Ansicht gemäß der
Fig. 14 in zurückgeneigter Stellung der Sitzschale;
- Fig. 1:
- a side view of a chair according to the invention in a first embodiment;
- Fig. 2:
- a view from behind on the chair according to the
Fig. 1 with undeformed seat shell; - 3:
- a view according to the
Fig. 2 with deformed seat of the chair; - 4:
- a view from above of the chair according to the
Fig. 1 with undeformed seat shell; - Fig. 5:
- a view according to the
Fig. 4 with deformed seat of the chair; - Fig. 6:
- a side view of a chair according to the invention in a second embodiment in an upright position of the seat;
- Fig. 7:
- a view according to the
Fig. 6 in the reclined position of the seat pan; - Fig. 8:
- a side view of a chair according to the invention in a third embodiment in the upright position of the seat;
- Fig. 9:
- a view according to the
Fig. 8 in the reclined position of the seat pan; - Fig. 10:
- a view from behind on a chair according to the
Fig. 6 to 9 with undeformed seat shell; - Fig. 11:
- a view according to the
Fig. 10 with deformed seat shell; - Fig. 12:
- a top view of a chair according to the
Fig. 6 to 9 with undeformed seat in an upright position; - Fig. 13:
- a view according to the
Fig. 12 in a deformed seat and in a reclined position; - Fig. 14:
- a side view of a chair according to the invention in a fourth embodiment in an upright position of the seat; and
- Fig. 15:
- a view according to the
Fig. 14 in the reclined position of the seat pan;
Der in den
Das Gestell 1 ist im Wesentlichen starr ausgebildet. Dieses ist somit derart ausgelegt, dass es sich bei einer bestimmungsgemäßen Benutzung des Stuhls nicht funktional deformiert. Das Gestell 1 kann einteilig, beispielsweise aus miteinander verschweißten Rohren ausgebildet sein. Es bildet beispielsweise, wie dargestellt, vier Füße aus, über die der Stuhl auf einem Untergrund abstellbar ist.The
Die Sitzschale 2 ist integral ausgebildet, so dass ein als Sitzteil 3 genutzter Abschnitt in einen als Rückenlehne 4 genutzten Abschnitt der Sitzschale 2 übergeht. Dabei kann die Sitzschale 2 ein- oder mehrteilig (insbesondere mit einem dann vorzugsweise einteiligen Sitzschalenoberteil und einem das Sitzschalenoberteil tragenden Rahmen) ausgebildet sein (vgl. auch
Die Sitzschale ist über zwei Drehgelenke 5, 6 mit dem Gestell 1 verbunden. Dabei ist ein erstes Drehgelenk 5 in der Nähe der Sitzvorderkante 7 der Sitzschale 2 angeordnet. Bezüglich der Querrichtung des Stuhls ist das erste Drehgelenk 5 mittig und damit in etwa in der Sagittalebene eines Nutzers des Stuhls positioniert. Das erste Drehgelenk 5 ermöglicht ein Verdrehen des mit diesem Drehgelenk 5 verbundenen Abschnitts der Sitzschale 2, konkret im Wesentlichen des gesamten Sitzteils 3, relativ zu dem entsprechenden Abschnitt des Gestells 1 (der Sitzbasis 8) um eine erste Drehachse 9. Diese erste Drehachse 9 verläuft in Hochrichtung des Stuhls. Konkret ist diese in etwa vertikal (bei auf einem horizontalen Untergrund stehenden Stuhl) ausgerichtet. Das erste Drehgelenk 5 kann derart ausgebildet sein, dass ein mit der Sitzbasis 8 (oder dem Sitzteil 3) verbundener Zapfen 10 drehbar in einem mit dem Sitzteil 3 (oder der Sitzbasis 8) verbundenen Hülse 11 gelagert ist.The seat is connected via two
Ein zweites Drehgelenk 6 verbindet die Sitzschale 2 im Bereich der Rückenlehne 4 mit einem Rückenlehnenträger 12 des Gestells 1. Dabei ist das zweite Drehgelenk 6 mittig bezüglich der Querrichtung des Stuhls und somit - ebenso wie das erste Drehgelenk 5 - in etwa in der Sagittalebene eines Nutzers des Stuhls angeordnet. Das zweite Drehgelenk 6 ist als Kugelgelenk ausgebildet. Dieses ermöglicht demnach ein Verdrehen der Rückenlehne 4 relativ zu dem Rückenlehnenträger 12 um eine Vielzahl von Achsen, unter anderem um mindestens eine sich in Längsrichtung des Stuhls erstreckende zweite Drehachse 13.A
Die erfindungsgemäße Lagerung der Sitzschale 2 ermöglicht eine durch eine Gewichtverlagerung eines Nutzers hervorgerufene Verformung der Sitzschale 2, bei der diese im Übergang von dem Sitzteil 3 zu der Rückenlehne 4 zu einer Seite bewegt wird, während die Sitzvorderkante 7 und die Rückenlehnenkante 14 in Richtung der anderen Seite geneigt werden (vgl.
Der Sitzteil 3 der Sitzschale 2 ist weiterhin noch über zwei Lager 15 mit dem Gestell 1 verbunden. Jeweils ein Lager 15 ist in Querrichtung des Stuhls beabstandet von dem ersten Drehlager 5 angeordnet. Hinsichtlich der Längsrichtung des Stuhls befinden sich die Lager 15 in der Höhe des ersten Drehlagers 5 und der Sitzvorderkante 7. Die beiden Lager 15 sind derart ausgebildet, dass diese zumindest eine Belastung entgegen der Hochrichtung, d.h. von oben nach unten, abstützen, d.h. verhindern. Dadurch wird ein Verdrehen des vorderen Abschnitts des Sitzteils 3 um eine in Längsrichtung des Stuhls ausgerichtete Achse und folglich ein zur Seite Kippen eines Nutzers mitsamt der Sitzschale 2 verhindert. Die Lager 15 sind dabei derart ausgebildet, dass eine Relativbeweglichkeit des Sitzteils 3 zu dem Gestell 1 im Bereich der Lager 15 in einer Ebene, die sich in Längsrichtung und Querrichtung des Stuhls erstreckt, möglich ist (vgl.
Sofern die Lager 15 auch jeweils eine Belastung in Hochrichtung, d.h. von unten nach oben, abstützen sollen, kann vorgesehen sein, dass eines der Lagerteile jedes Lagers 15 ein Langloch ausbildet, durch das sich ein Führungsbolzen des anderen Lagerteils erstreckt, wobei der Rand des Langlochs zumindest einseitig, vorzugsweise zweiseitig in eine von dem Führungsbolzen in seinem Mantel ausgebildete Nut eingreift.If the
Der in den
Der Rückenlehnenträger 12 ist L-förmig ausgebildet, wobei das freie Ende des einen Schenkels über das zweite Drehgelenk 6 mit der Rückenlehne 4 der Sitzschale 2 und das freie Ende des anderen Schenkels über das dritte Drehgelenk 16 mit der Sitzbasis 8 verbunden ist. Der Rückenlehnenträger 12 kann aber ebenso gut auch bogenförmig ausgebildet sein.The
Um die Neigungsbeweglichkeit der Sitzschale 2 nicht zu behindern, sind das erste Drehgelenk 5 und das zweite Drehgelenk 6 so ausgebildet, dass diese ein Verdrehen des entsprechenden Abschnitts der Sitzschale 2 relativ zu dem entsprechenden Abschnitt des Gestells 1 jeweils auch um eine in Querrichtung des Stuhls ausgerichtete, vierte Drehachse 18 beziehungsweise fünfte Drehachse 19 ermöglichen. Diese Drehbarkeit ergibt sich bei dem zweiten Drehgelenk 6 aus dessen Ausgestaltung als Kugelgelenk. Für das erste Drehgelenk 5 ergibt sich diese Drehbarkeit dagegen aus der Verformbarkeit der Sitzschale, wie dies in den
Durch den Abstand der dritten Drehachse 17 von der von dem ersten Drehgelenk 5 ausgebildeten, sich in Querrichtung des Stuhls erstreckenden vierten Drehachse 18 verändert sich der (direkte) Abstand zwischen der vierten Drehachse 18 und dem zweiten Drehlager 6 bei einem Zurückneigen der Sitzschale 2. Dies führt zu einer Deformation der Sitzschale 2, bei der sich ein zwischen dem Sitzteil 3 und der Rückenlehne 4 ausgebildeter Winkel α vergrößert (α1 < α2).Due to the distance between the third axis of
Der in den
Der in den in den
Dazu ist das dritte Drehgelenk 16, über das der Rückenlehnenträger 12 mit der Sitzbasis 8 verbunden ist, zurückversetzt angeordnet. Zudem sind an demselben Ende wie das dritte Drehgelenk 16 noch zwei (jeweils eines auf jeder Seite des Rückenlehnenträger 12) Stangen 23 um eine siebte Drehachse 24 drehbar mit dem Rückenlehnenträger 12 verbunden. Dabei ist die siebte Drehachse 24 von der von dem dritten Drehlager 16 ausgebildeten dritten Drehachse 17 beabstandet angeordnet.For this purpose, the third rotary joint 16, via which the
Die Stangen 23 erstrecken sich bis zu einem Ende von jeweils einem Hebel 25, mit dem diese um eine sich in Querrichtung des Stuhls erstreckende achte Drehachse 26 drehbar verbunden sind. Das jeweils andere Ende der Hebel 25 ist um eine sich in Querrichtung des Stuhls erstreckende neunte Drehachse 27 drehbar mit der Sitzbasis 8 verbunden. Somit ergibt sich auch ein Abstand zwischen der achten Drehachse 26 und der neunten Drehachse 27. Dabei ist die neunte Drehachse 27 in etwa so positioniert, wie die dritte Drehachse 17 bei dem Stuhl gemäß den
Das erste Drehgelenk 5 ist über einen Querträger mit den beiden Stangen 23 in der Nähe der achten Drehachse verbunden. Dieser kann jedoch auch, wiederum in der Nähe der achten Drehachse, mit den beiden Hebel 25 verbunden sein. Durch diese Anbindung des ersten Drehgelenks 5 in Verbindung mit den Abständen, die zwischen der dritten Drehachse 17 und der siebten Drehachse 24 einerseits sowie der achten Drehachse 26 und der neunten Drehachse 27 andererseits ausgebildet sind, ergibt sich die gewünschte, an eine Neigungsverstellung der Sitzschale 2 gekoppelte Höhenverstellung des ersten Drehlagers 5 und damit der Sitzvorderkante 7.The
Auch bei dem Stuhl gemäß den
Die
- 11
- Gestellframe
- 22
- Sitzschaleseat
- 33
- Sitzteilseat part
- 44
- Rückenlehnebackrest
- 55
- erstes Drehgelenkfirst rotary joint
- 66
- zweites Drehgelenksecond pivot
- 77
- SitzvorderkanteFront seat edge
- 88th
- Sitzbasisseat base
- 99
- erste Drehachsefirst axis of rotation
- 1010
- Zapfenspigot
- 1111
- Hülseshell
- 1212
- RückenlehneträgerBackrest carrier
- 1313
- zweite Drehachsesecond axis of rotation
- 1414
- RückenlehnenkanteBackrest edge
- 1515
- Lagercamp
- 1616
- drittes Drehgelenkthird pivot
- 1717
- dritte Drehachsethird axis of rotation
- 1818
- vierte Drehachsefourth axis of rotation
- 1919
- fünfte Drehachsefifth axis of rotation
- 2020
- viertes Drehgelenkfourth swivel joint
- 2121
- sechste Drehachsesixth axis of rotation
- 2222
- Fußteilfootboard
- 2323
- Stangepole
- 2424
- siebte Drehachseseventh axis of rotation
- 2525
- Hebellever
- 2626
- achte Drehachseeighth axis of rotation
- 2727
- neunte Drehachseninth axis of rotation
- 2828
- Rahmenframe
Claims (15)
dadurch gekennzeichnet, dass
das zweite Drehgelenk (6) mittig bezüglich der Querrichtung des Stuhls mit der Rückenlehne (4) verbunden ist.Chair with a deformable seat shell (2), which forms a seat part (3) and a backrest (4), and a frame (1), wherein the seat part (3) via a first pivot (5) and the backrest (4) via a second swivel joint (6) is connected to the frame (1), wherein the swivel joints (5, 6) cause a twisting of the seat part (3) and the backrest (4) relative to the frame (4) by deforming the seat shell (2). 1) allow
characterized in that
the second pivot (6) is connected to the backrest (4) centrally with respect to the transverse direction of the chair.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL15179945T PL2962602T3 (en) | 2014-03-19 | 2015-03-06 | Chair |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014103780.4A DE102014103780B3 (en) | 2014-03-19 | 2014-03-19 | chair |
EP15157929.9A EP2921080B1 (en) | 2014-03-19 | 2015-03-06 | Chair |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15157929.9A Division EP2921080B1 (en) | 2014-03-19 | 2015-03-06 | Chair |
EP15157929.9A Division-Into EP2921080B1 (en) | 2014-03-19 | 2015-03-06 | Chair |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2962602A1 true EP2962602A1 (en) | 2016-01-06 |
EP2962602B1 EP2962602B1 (en) | 2017-05-10 |
Family
ID=52630246
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15157929.9A Active EP2921080B1 (en) | 2014-03-19 | 2015-03-06 | Chair |
EP15179945.9A Not-in-force EP2962602B1 (en) | 2014-03-19 | 2015-03-06 | Chair |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15157929.9A Active EP2921080B1 (en) | 2014-03-19 | 2015-03-06 | Chair |
Country Status (5)
Country | Link |
---|---|
US (1) | US9713380B2 (en) |
EP (2) | EP2921080B1 (en) |
JP (1) | JP6723688B2 (en) |
DE (1) | DE102014103780B3 (en) |
PL (2) | PL2921080T3 (en) |
Families Citing this family (29)
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JP5598557B2 (en) * | 2013-01-10 | 2014-10-01 | トヨタ自動車株式会社 | Vehicle seat device |
DE102015102007B3 (en) * | 2015-02-12 | 2016-07-28 | Wilkhahn Wilkening + Hahne Gmbh + Co. | seating |
WO2016131485A1 (en) * | 2015-02-19 | 2016-08-25 | Simon Desanta | Chair |
US10194750B2 (en) | 2015-04-13 | 2019-02-05 | Steelcase Inc. | Seating arrangement |
CN107708491B (en) | 2015-04-13 | 2022-02-22 | 斯迪尔科斯公司 | Seating arrangement |
US10966527B2 (en) | 2017-06-09 | 2021-04-06 | Steelcase Inc. | Seating arrangement and method of construction |
US11259637B2 (en) | 2015-04-13 | 2022-03-01 | Steelcase Inc. | Seating arrangement |
NZ779052A (en) * | 2016-02-05 | 2024-02-23 | Formway Furniture Ltd | A chair and components |
CN109310209A (en) * | 2016-06-11 | 2019-02-05 | 休思乐公司 | Seat with radial type backrest |
DE102016123681B4 (en) | 2016-12-07 | 2018-11-29 | Faurecia Autositze Gmbh | Fastening means for pivotally securing a seat pan of a vehicle seat, vehicle seat and method for pivotally attaching a seat pan to a vehicle seat |
US10737053B2 (en) | 2016-12-09 | 2020-08-11 | Faurecia Automotive Seating, Llc | Occupant comfort system |
DE202017102909U1 (en) | 2017-01-04 | 2018-04-05 | Design Ballendat Gmbh | Chair with one-piece seat shell |
CN110430787B (en) * | 2017-02-03 | 2023-09-12 | 浙江圣奥家具制造有限公司 | Chair |
EP3643205A4 (en) | 2017-06-20 | 2020-10-21 | Kokuyo Co., Ltd. | Chair |
CN110650658B (en) | 2017-06-20 | 2023-10-03 | 国誉株式会社 | Chair |
JP2019063426A (en) * | 2017-10-05 | 2019-04-25 | コクヨ株式会社 | Chair |
US10710479B2 (en) | 2017-12-19 | 2020-07-14 | Faurecia Automotive Seating, Llc | Occupant comfort system |
US10493878B2 (en) | 2017-12-22 | 2019-12-03 | Faurecia Automotive Seating, Llc | Motion sickness mitigation |
US10391899B2 (en) | 2017-12-22 | 2019-08-27 | Faurecia Automotive Seating, Llc | Motion sickness mitigation |
US10377275B2 (en) * | 2017-12-28 | 2019-08-13 | Faurecia Automotive Seating, Llc | Motion sickness mitigation |
JP6808678B2 (en) * | 2018-05-25 | 2021-01-06 | トヨタ紡織株式会社 | Vehicle seat |
JP2019202701A (en) * | 2018-05-25 | 2019-11-28 | トヨタ紡織株式会社 | Vehicle seat |
CH715343A1 (en) * | 2018-09-18 | 2020-03-31 | Krob Andreas | Swivel chair. |
AT521926B1 (en) | 2018-12-06 | 2020-10-15 | Walter Schindlegger | Seat with a moving seat |
CN113507865A (en) | 2019-02-21 | 2021-10-15 | 斯特尔凯斯公司 | Body support assembly and methods for use and assembly thereof |
DE102019131428B4 (en) | 2019-11-21 | 2022-02-03 | Wilkhahn Wilkening + Hahne Gmbh + Co. | seating furniture |
US11357329B2 (en) | 2019-12-13 | 2022-06-14 | Steelcase Inc. | Body support assembly and methods for the use and assembly thereof |
US11051624B1 (en) * | 2020-02-27 | 2021-07-06 | Comfordy Co., Ltd. | Twistable chair backrest frame |
CN213605400U (en) * | 2020-08-07 | 2021-07-06 | 浙江圣奥家具制造有限公司 | Rocking structure of seat backrest |
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US2745468A (en) * | 1952-03-10 | 1956-05-15 | Gideon A Kramer | Chair with resilient tilting seat and back |
WO2002102203A1 (en) * | 2001-06-14 | 2002-12-27 | Factory Design Ltd | Seats |
EP1946676A1 (en) * | 2002-09-12 | 2008-07-23 | Wilkhahn Wilkening + Hahne Gmbh + Co. | Chair |
DE102011001811A1 (en) | 2011-04-05 | 2012-10-11 | Wilkhahn Wilkening + Hahne Gmbh + Co. Kg | chair |
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JPS62258610A (en) * | 1986-05-06 | 1987-11-11 | 株式会社 イト−キ | Cooperation buffer mechanism of seat plate and backrest in chair |
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JP5598557B2 (en) * | 2013-01-10 | 2014-10-01 | トヨタ自動車株式会社 | Vehicle seat device |
DE102015102007B3 (en) * | 2015-02-12 | 2016-07-28 | Wilkhahn Wilkening + Hahne Gmbh + Co. | seating |
-
2014
- 2014-03-19 DE DE102014103780.4A patent/DE102014103780B3/en active Active
-
2015
- 2015-03-06 EP EP15157929.9A patent/EP2921080B1/en active Active
- 2015-03-06 EP EP15179945.9A patent/EP2962602B1/en not_active Not-in-force
- 2015-03-06 PL PL15157929.9T patent/PL2921080T3/en unknown
- 2015-03-06 PL PL15179945T patent/PL2962602T3/en unknown
- 2015-03-11 US US14/644,317 patent/US9713380B2/en active Active
- 2015-03-18 JP JP2015054960A patent/JP6723688B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2745468A (en) * | 1952-03-10 | 1956-05-15 | Gideon A Kramer | Chair with resilient tilting seat and back |
WO2002102203A1 (en) * | 2001-06-14 | 2002-12-27 | Factory Design Ltd | Seats |
EP1946676A1 (en) * | 2002-09-12 | 2008-07-23 | Wilkhahn Wilkening + Hahne Gmbh + Co. | Chair |
DE102011001811A1 (en) | 2011-04-05 | 2012-10-11 | Wilkhahn Wilkening + Hahne Gmbh + Co. Kg | chair |
Also Published As
Publication number | Publication date |
---|---|
DE102014103780B3 (en) | 2015-06-18 |
US9713380B2 (en) | 2017-07-25 |
US20150265052A1 (en) | 2015-09-24 |
EP2962602B1 (en) | 2017-05-10 |
PL2921080T3 (en) | 2016-12-30 |
PL2962602T3 (en) | 2017-10-31 |
JP6723688B2 (en) | 2020-07-15 |
EP2921080A1 (en) | 2015-09-23 |
EP2921080B1 (en) | 2016-03-30 |
JP2015177979A (en) | 2015-10-08 |
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