EP2721961B1 - Seating furniture components and seating furniture - Google Patents
Seating furniture components and seating furniture Download PDFInfo
- Publication number
- EP2721961B1 EP2721961B1 EP13182023.5A EP13182023A EP2721961B1 EP 2721961 B1 EP2721961 B1 EP 2721961B1 EP 13182023 A EP13182023 A EP 13182023A EP 2721961 B1 EP2721961 B1 EP 2721961B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seating
- backrest
- seating component
- frame
- membrane
- 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.)
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Images
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
- A47C7/02—Seat parts
- A47C7/28—Seat parts with tensioned springs, e.g. of flat type
- A47C7/282—Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
- A47C31/02—Upholstery attaching means
- A47C31/023—Upholstery attaching means connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like
-
- 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
- A47C7/18—Seat parts having foamed material included in cushioning part
- A47C7/20—Seat parts having foamed material included in cushioning part with reinforcement in the foam layer
-
- 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
Definitions
- the present invention relates to a seating furniture component with elastic covering, in particular a backrest of a chair.
- the present invention further relates to such a chair.
- An office swivel chair in addition to the mounted on a seat support seat and a support frame on a backrest. In most cases, this backrest as well as the seat is upholstered. Cushioned backrests should be ergonomically adapted in shape to the back.
- the upholstery of such a backrest usually consists of foams of different degrees of hardness, through which the seating comfort is conditioned.
- the pad is completed by a fleece or mat cover, which is then covered with a textile material, leather or a plastic material.
- Such Chairs are, for example, the office swivel chairs distributed by the company Sedus Stoll AG under "black dot" and "of course".
- a simpler alternative compared to such upholstered backrests alternative represents a net-covered backrest.
- An office swivel chair with backrests with such elastic covering is for example in the German utility model DE 202 16 302 U1 described.
- the mesh materials used in such office chairs have a relatively high elasticity and unlike padded backrests no point elasticity. You must also be particularly firmly clamped to maintain the shape of the net-covered backrest under load.
- a net-covered backrest must support the lumbar region well. At the same time, however, she must not press hard against the back with the lower edge of the net frame due to lack of padding.
- this material In addition to the high tensile strength and elasticity, it must also be breathable and windproof as possible.
- this material must be well dyeable, since especially in office swivel chairs particularly high demands are made on an attractive design. For this reason, the materials used for net-covered backrests are relatively complex and therefore expensive.
- Such chairs with a net-covered backrest are, for example, the office swivel chairs marketed by Sedus Stoll AG under the name of "black dot net” or "open up” with a backrest which is covered with mesh.
- the US Pat. No. 3,264,034 describes a chair that has a frame. At the edge of the frame a load-bearing network is attached by means of fastening elements.
- the EP 0 867 332 A2 describes a chair having a cushioning membrane.
- the membrane is formed of a film comprising polyurethane.
- the EP 0 467 123 A1 describes a chair with an intermediate layer.
- the intermediate layer is formed, for example, from a wire mesh.
- the EP 1 529 618 A1 a padding comprising a frame between which a net is stretched.
- the US Pat. No. 3,600,035 describes a chair with a membrane, which is stretched over a frame.
- the GB 939 343 A describes a chair with a frame, between which a net is stretched.
- the present invention seeks to provide an inexpensive and nonetheless very stable seating furniture component for a chair.
- this object is achieved by a seating furniture component having the features of claim 1 and / or by a backrest having the features of claim 14.
- the finding underlying the present invention is that it is not necessary in a padding construction, and in particular in a so-called slim padding structure, to provide such a padding cover which on the one hand requires the requirements for the padding covering, such as seating comfort, aesthetics , Haptician properties and the like, and also includes the very high demands on the tensile / compressive stability of the tight padding and elasticity.
- the multi-layer padding construction according to the invention therefore has front and back cushion coverings which have the properties required here, such as particularly suitable haptic properties, seat comfort properties, aesthetic properties and the like.
- This front side or, if necessary, also the back upholstery cover likewise represent the visible side of the upholstery cover.
- the load stability is met by a dedicated membrane, which in normal use in a non-visible area between the front and the back upholstery cover is arranged.
- the particular advantage of the present invention consists in the fact that this membrane is used exclusively for load stability and therefore can be optimized exclusively with regard to these properties. Additional properties, such as aesthetic properties, the haptic properties and the like, are not relevant to the membrane and therefore need not be taken into account, especially since this membrane from the outside just not visible or therefore not felt. In this respect, even a comparatively cost-effective solution can be used for such a support membrane.
- the entire upholstery structure can be provided relatively inexpensively due to the separation of the properties, since the respective components of the upholstery structure can each be optimized separately.
- the frame has a clip bar.
- This clip strip forms the attachment interface of the seating furniture component and is designed for this purpose to be clipped into a correspondingly formed attachment interface of the seat.
- a welt strip can also be used.
- This clip strip or the welt strip is formed elastically deformable in the rule, but at least ensures a certain dimensional stability for the seating furniture component, unless this seating furniture component has its own dimensionally stable frame. Due to their nature, this clip strip or the welt strip can be clipped into or hung in a specially provided attachment interface of a frame of the chair. In this way, a very elegant and nonetheless very stable attachment of the seating furniture component is guaranteed to the seating.
- the cover is formed in two parts.
- the two-part formed cover has a front and a rear cover, wherein at least the front side cover is sewn in an edge region of the seating furniture component via at least one seam with the membrane. It would also be conceivable, alternatively, if the front cover is clamped to the frame. Conceivable, of course, would be another type of attachment, such as a connection of the two covers by (pressure) buttons, zippers or the like.
- the particular advantage of the two-part design of the covers is that different materials for the covers can be used here. For example, the properties of the front cover and the back cover can be optimized specifically for their intended use.
- the front-side visible side which is used for example in the case of a backrest or a chair seat, has a haptic very sophisticated soft surface, is sensitive to friction and in particular is also permeable to air. These properties do not have to necessarily apply to both sides, and in particular not necessarily to the rear side, especially when the seating component is the seat of a chair.
- the cover can be slipped over the frame in a bag-like manner, provided that the cover is made in one piece, e.g. is formed in the form of a bag.
- the cover is made in one piece, e.g. is formed in the form of a bag.
- a particularly simple assembly is possible.
- the replacement of the cover is also very easy, for example, when the cover must be cleaned.
- the membrane is completely covered by the cover.
- the membrane is net-shaped, mesh-shaped or v continuuförmig.
- reticulated or reticulated materials are, for example, the materials marketed by Gabriel under the brand name Runner or Harlequin.
- the membrane may be woven or otherwise made.
- At least the front cover is made of a functional textile, in particular breathable material.
- both covers that is, the front and back cover, as well as the membrane of the functional fabric material.
- Functional textiles are textiles of fibers, yarns, fabrics, knitted fabrics and the like with functional added value. These functional added-value properties preferably relate to the breathability. Other functional properties may include windproof, waterproof, thermoregulation, stain resistance, UV resistance, elasticity, durability, etc. In addition, the warming or cooling property can also be considered as functional properties. Besides, it is also beneficial Functional textiles that are particularly lightweight, thereby reducing the overall weight of the chair. In particular, the breathability is the particularly preferred property to improve the seating comfort of a person sitting on the chair.
- Breathability refers to the ability to release water vapor released, for example, from the body of a person sitting on the chair. It is particularly preferred when using those materials which allow 30-300 g of water vapor to escape per hour from S.8. Well-known brand names for functional textiles with good breathability are for example GORE-TEX or Sympatex. In addition, it is also advantageous if materials are used which are in particular windproof, for example, in the case of a membrane-covered backrest to avoid hypothermia of the back of the person sitting on the chair. Finally, it is particularly advantageous for seats of a chair, if hard-wearing, wear-avoiding or reducing materials are used here.
- the membrane is designed as a load-bearing, tensile and pressure-resistant plastic net, plastic fiber fabric, metal mesh, metal fiber fabric and / or mesh of fiber-reinforced material, such as CFK or GFRP.
- plastic-formed membranes they may be made of any man-made fibers or polymers, such as PET (polyethylene terephthalate), which have versatile properties and therefore constitute a preferred synthetic fiber.
- PET polyethylene terephthalate
- Polyester fiber (PES) are very tear and scuff resistant, but absorb hardly any moisture.
- Particularly advantageous is the design of the membrane made of polyamide (PA), such as nylon, nylon, etc., which are very elastic and tensile.
- plastic materials such as polyimide (PI), polyamide-imide (PAI), polyvinylsulfide (PPS), aramid and the like may be used, depending which properties are desired.
- PI polyimide
- PAI polyamide-imide
- PPS polyvinylsulfide
- aramid and the like may be used, depending which properties are desired.
- the latter materials have a very high tensile strength and are therefore particularly suitable for very tensile membrane.
- materials such as polytetrafluoroethylene (PTFE) can be used, which are very temperature resistant, chemically largely inert and water-repellent and is used for example under the trade name GORE-TEX.
- This material is preferably used for the cover, but can also be used for the membrane.
- PE polyethylene
- PP polypropylene
- the latter fiber is a very light textile fiber and also has a high elasticity.
- glass fiber reinforced materials GRP
- carbon fiber reinforced plastics CFRP
- GRP glass fiber reinforced materials
- plastic materials just mentioned especially for the membrane, it is also possible to use very simple metal nets, metal mesh and the like, since these fabrics are not visible and therefore do not have to have a particularly appealing appearance.
- metal nets can also use networks of ceramic fibers or ceramic-containing materials.
- the seating furniture component is designed as a backrest.
- the seating furniture component has a backrest support, via which the backrest is fastened to a seat support of the seat.
- the inventive design of the upholstery structure consisting of reference and membrane is particularly elegant here.
- the visible cover is used for design-technical reasons optimizable external appearance. This cover can therefore be optimized with regard to these properties and in particular with regard to the breathability, abrasion resistance, haptic properties and the like.
- the essential for the load on the backrest properties of elasticity and tensile and compressive strength are met by the hidden so to speak inside the cover and thus not visible membrane.
- This membrane can therefore be optimized exclusively for these properties, so that much more cost-effective materials can be used for this membrane, ie optical properties play no role here.
- the frame is formed dimensionally stable and forms the back frame of the backrest.
- the frame is formed by the attachment interface of the seating furniture component, which is clipped or suspended in the backrest support. In this way, it is possible to realize a very thin, less massive appearing frame, so that the entire backrest shows a particularly light-looking appearance. This is particularly advantageous when the frame of the backrest is visible.
- the rear cover and the membrane only extend to an inner edge region of the seating furniture component. There they are attached to the front cover, for example sewn over a seam.
- the seating furniture component in the outer edge region then only has the thickness of the front-side cover.
- the attachment interface which is designed for example as Kedermann or clip bar, fasten.
- the so-formed upholstery cover can thus be clipped or hooked directly from the front or from the back directly to a thin backrest frame of the chair.
- the possibly less attractive membrane or the possibly less high-quality rear cover is not visible from the front side, that is to say from the visible side or the side of the front cover. Nevertheless, the stability is ensured because the various covers and the membrane are sewn together or otherwise secured together.
- the seating furniture component is designed as a flat cushion, in particular as a backrest with a flat cushion.
- the seating component inside a thin foam layer, which is arranged in the interior of the seating furniture component between the front and rear cover, and preferably between the front cover and the membrane.
- this flat upholstered seating component has a much thinner appearance and thus works much easier, which is advantageous for design reasons.
- At least the membrane in a inner region of the seating furniture component has a higher elasticity than in an edge region of the seating furniture component, to which it is attached, for example, to a frame.
- at least one or even both covers have the same properties, that is, that they are in an inner region of the seating furniture component have a higher elasticity than in a border area. This is particularly advantageous when the seating component is, for example, the seat or the backrest of a chair, which is loaded in the intended use of a person sitting on the chair, preferably in the inner region of the seating furniture component. Also for reasons of comfort, this can be advantageous if, for example, if too hard a seat or too hard a backrest should be avoided.
- Fig. 1 shows a schematic representation of a first embodiment of a seating furniture component according to the invention.
- the seating furniture component designated here by reference numeral 10 has an at least partially elastic covering.
- the seating furniture component 10 comprises a preferably dimensionally stable frame 11 and a cushion arrangement 12.
- the cushion arrangement 12 contains at least one cover 13 and a membrane 14.
- the membrane 14 is designed as a load-stable membrane 14 and clamped in the frame 11.
- the membrane 14 is attached to a mounting interface 15 on the frame 11 or fixed to the frame 11. At this attachment interface 15, the membrane 14 is formed tensile load on the frame.
- the frame 11 is designed pressure-resistant in the region 16 of the intended load. In the case of a seat component 10 designed as a seat, this area 16 of the intended load is the area with which a person sits on the seat. In the case of a seating furniture component 10 designed as a backrest, this is the area with which the back of a person comes into contact with the backrest.
- the cover 13 may be in one piece or in several parts, for example in two parts.
- the cover 13 has a front side view 17 and a back side 18.
- the front side visible side 17 forms the user surface of the seating furniture component, in the case of a sitting furniture component 10 designed as a seat, the seat surface.
- the rear side 18 forms the back of the seating furniture component and is often not visible, especially in normal use. It is essential that the cover 13, ie the front side 17 and the rear side 18 together with the Frame 11, the membrane 14 completely covers, so that the membrane 14 is not visible in normal use.
- the membrane 14 is formed of a load-stable, tensile and pressure-resistant material, e.g. a plastic net, plastic fiber cloth, metal mesh, metal fiber cloth and / or fiber-reinforced material web.
- a load-stable, tensile and pressure-resistant material e.g. a plastic net, plastic fiber cloth, metal mesh, metal fiber cloth and / or fiber-reinforced material web.
- the membrane 14, and preferably also the cover 13 is made of a functional textile material, in particular of a breathable material.
- Fig. 2 shows a schematic representation of a second embodiment of a seating furniture component 10 according to the invention.
- the seating furniture component 10 shown there which is here a backrest, has a flat cushion Slim upholstery.
- a thin foam layer 20, 21 is provided between the front and the rear cover.
- two foam layers 20, 21 are provided which are arranged in the interior of the seating furniture component 10 on the one hand between the front cover 17 and the membrane 14 and on the other hand between the rear cover 18 and the membrane 14.
- the seating component 10 in Fig. 2 has an inner region 22, in which the membrane 14 has a higher elasticity than in an edge region 23. This forms, for example, that area in which the seating furniture component 10 is loaded in the intended area.
- Fig. 3 shows a schematic representation of a third embodiment of a seating furniture component 10 according to the invention.
- the seating furniture component 10 shown there which is a seat here, has a "normal" upholstery.
- a thick Foam layer 20 is provided between the front and the back cover .
- the foam layer 20 is arranged only between the front cover and the membrane 14.
- FIGS. 4A and 4B each show an office swivel chair 40 with a seating furniture component 10 according to the invention in a perspective front view or rear side view.
- the office swivel chair 40 designated here by reference numeral 40, comprises a backrest 41, a seat 43 and a chair base with a swivel chair cross 45.
- the seat 43 generally comprises at least one seat surface 44 consisting of a cushion and a seat support and a arranged under the seat support Verstellmechnik (not visible in the Fig. 4A and 4B not visible). On the seat support or alternatively on the Verstellmechnik the armrests 46 are attached.
- the backrest 41 has a structural backrest frame 42 and a cushion arrangement 47 which is clamped and fixed in the backrest frame 42, as described, for example, with reference to FIGS Fig. 1 to 3 was explained.
- the backrest 41 thus forms a seating furniture component 10 according to the invention.
- the structural frame 42 is designed as a snap-in frame. That is, in this embodiment, the latching frame 42 not only serves to support a cushion support of the cushion assembly 47, but additionally represents the structural frame of the entire backrest 41.
- the backrest 41 is attached to a suitably formed interface on the seat, and typically the adjustment mechanism here of the seat 40 attached.
- FIGS. 5 and 6 two example shown as a seating furniture component according to the invention, the For example, is designed as a backrest, can be attached to the backrest support of a chair.
- FIG. 5 shows in a fragmentary cross-sectional view, first, a first embodiment of the connection of a cushion arrangement according to the invention to the frame of a backrest 41st
- the latching frame 50 in this simplified representation has a substantially rectangular cross-sectional shape, wherein in the rectangular cross-sectional shape has a laminating groove 52 and latching means 51 with a latching lug and provided for counter-latching means further groove.
- the upholstery arrangement of the backrest 41 has a cushion support 14, which is formed by the membrane 14.
- the cushion support 14 is fixed to counter-latching means 54 and a pad attachment portion 55.
- the counter-locking means 54 are shown locked with the locking means 51, so that the counter-locking means 54 is in the form of a detent spring in the groove of the locking means 51 is engaged.
- the cushion attachment portion 55 is recessed in the liner groove 52.
- a front cushion cover 56 is provided on the visible side, ie on the front side of the backrest. This front cushion cover 56 is attached to the cushion attachment portion 55.
- a back upholstery cover 57 is provided, which is attached to the cushion support 14.
- the cushion covers 56, 57 may be glued, welded, tacked, sewn or otherwise secured.
- the latching frame 50 is a circumferential frame, so that the cushion support 14 and the cushion covers 56, 57 extend over a peripheral frame.
- FIG. 6 shows in a fragmentary cross-sectional view, first, a second embodiment of the connection of a cushion arrangement according to the invention to the frame of a backrest.
- the end of the front cushion cover 56 is not attached to the cushion mounting portion 55 and then guided in the mounting groove 52 of the Einrastrahmens 50 during assembly. Rather, this front cushion cover 56 protrudes laterally beyond the latching frame 50 and thus beyond the cushion support 14 fastened to the latching frame 50.
- the padding arrangement at these lateral areas 58 thus only the thickness of the front cushion cover 56.
- These lateral areas 58 can then be attached to the cushion support 14 to cover a gap of the laminating groove 52 or remain free.
- the cushioning arrangement can be used not only for a backrest, but also for a seat surface or an armrest surface, a headrest surface or the like. It is also conceivable use in other types of furniture such as lounge furniture, relaxation furniture and the like.
- cover and the membrane are not limited to the materials mentioned. Rather, for example, any suitable seat cover, such as faux leather, real leather, cotton fabric, fiber fabric or the like may cover as reference.
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- Chair Legs, Seat Parts, And Backrests (AREA)
- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Description
Die vorliegende Erfindung betrifft eine Sitzmöbelkomponente mit elastischer Bespannung, insbesondere eine Rückenlehne eines Sitzmöbels. Die vorliegende Erfindung betrifft ferner ein solches Sitzmöbel.The present invention relates to a seating furniture component with elastic covering, in particular a backrest of a chair. The present invention further relates to such a chair.
Bei Polsterungen unterscheidet man legere und straffe Polsterungen. Während eine Person bei einer legeren Polsterung ein wenig in die Polsterung einsinkt und sich die Polsterung damit der Körperform dieser Person anpasst, ist bei einer straff gespannten Polsterung der Bezug fest mit dem Polster verbunden. Die Einsinktiefe ist bei der straffen Polsterung deutlich geringer und die Oberfläche bleibt, wie etwa bei Bürostühlen, straff und glatt. Die vorliegende Erfindung sowie die ihr zugrunde liegende Problematik wird nachfolgend mit Bezug auf einen Polsteraufbau beschrieben, wie er bei Bürostühlen und insbesondere bei Rückenlehnen von Bürodrehstühlen verwendet wird, ohne allerdings die Erfindung dahingehend einzuschränken.For upholstery, a distinction between casual and tight upholstery. While a person with a casual padding sinks a little into the padding and the padding thus adapts to the body shape of this person, the cover is firmly connected to the upholstery with a tautly upholstered padding. The sinking depth is significantly lower with the taut upholstery and the surface remains, as with office chairs, taut and smooth. The present invention, as well as its underlying problem will be described below with reference to a cushion structure, as used in office chairs and in particular in the backrests of office swivel chairs, but without limiting the invention to the effect.
Ein Bürodrehstuhl weist neben dem auf einem Sitzträger montierten Sitz und einem Trägergestell auch eine Rückenlehne auf. Zumeist ist diese Rückenlehne wie auch der Sitz gepolstert. Gepolsterte Rückenlehnen sollten in ihrer Form dem Rücken ergonomisch angepasst sein. Die Polsterung einer solchen Rückenlehne besteht üblicherweise aus Schaumstoffen unterschiedlicher Härtegrade, durch die der Sitzkomfort bedingt wird. Das Polster wird von einer Vlies- oder Mattenabdeckung abgeschlossen, welches dann mit einem textilen Material, Leder oder einem Kunststoffmaterial überdeckt ist. Derartige Stühle sind zum Beispiel die von der Firma Sedus Stoll AG unter "black dot" und "of course" vertriebenen Bürodrehstühle.An office swivel chair, in addition to the mounted on a seat support seat and a support frame on a backrest. In most cases, this backrest as well as the seat is upholstered. Cushioned backrests should be ergonomically adapted in shape to the back. The upholstery of such a backrest usually consists of foams of different degrees of hardness, through which the seating comfort is conditioned. The pad is completed by a fleece or mat cover, which is then covered with a textile material, leather or a plastic material. such Chairs are, for example, the office swivel chairs distributed by the company Sedus Stoll AG under "black dot" and "of course".
Eine im Vergleich zu solchen gepolsterten Rückenlehnen einfachere Alternative stellt eine netzbespannte Rückenlehne dar. Ein Bürodrehstuhl mit Rückenlehnen mit einer derartigen elastischen Bespannung ist beispielsweise in dem Deutschen Gebrauchsmuster
Die bei solchen Bürostühlen verwendeten Netzmaterialien haben eine relativ hohe Elastizität und im Unterschied zu gepolsterten Rückenlehnen keine Punktelastizität. Sie müssen zudem besonders fest eingespannt sein, um die Form der netzbespannten Rückenlehne bei Belastung zu erhalten. Zudem muss eine netzbespannte Rückenlehne den Lendenwirbelbereich gut abstützen. Gleichzeitig darf sie aber nicht mit dem unteren Rand des Netzrahmens aufgrund fehlender Polsterung hart gegen den Rücken drücken. Neben der hohen Zugbelastbarkeit und Elastizität muss sie zudem auch atmungsaktiv und möglichst winddicht sein. Zudem muss dieses Material gut einfärbbar sein, da vor allem bei Bürodrehstühlen besonders hohe Anforderungen an ein ansprechendes Design gestellt sind. Aus diesem Grunde sind die für netzbespannte Rückenlehnen verwendeten Materialien relativ aufwändig und damit kostenintensiv.The mesh materials used in such office chairs have a relatively high elasticity and unlike padded backrests no point elasticity. You must also be particularly firmly clamped to maintain the shape of the net-covered backrest under load. In addition, a net-covered backrest must support the lumbar region well. At the same time, however, she must not press hard against the back with the lower edge of the net frame due to lack of padding. In addition to the high tensile strength and elasticity, it must also be breathable and windproof as possible. In addition, this material must be well dyeable, since especially in office swivel chairs particularly high demands are made on an attractive design. For this reason, the materials used for net-covered backrests are relatively complex and therefore expensive.
Derartige Stühle mit netzbespannten Rückenlehne sind zum Beispiel die von der Firma Sedus Stoll AG unter "black dot net" oder "open up" vertriebenen Bürodrehstühle mit mebranbespannter Rückenlehne.Such chairs with a net-covered backrest are, for example, the office swivel chairs marketed by Sedus Stoll AG under the name of "black dot net" or "open up" with a backrest which is covered with mesh.
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Neben den eben genannten Rückenlehnenvarianten, das heißt einerseits die Vollpolsterung und andererseits die Netzbespannung, besteht zunehmend der Bedarf, insbesondere aus designtechnischen und optischen Gründen, eine sehr dünne, so genannte Slim-Polsterung zu verwenden. Solche Slim-Polsterungen sind deutlich dünner ausgebildet als die üblichen gepolsterten Rückenlehnen, bei denen nur eine sehr dünne Schaumstoffschicht oder bisweilen gar keine Schaumstofffüllung vorhanden ist. Problematisch bei diesen so genannten Slim-Rückenlehnen ist stets die Stabilität und insbesondere die Zugfestigkeit bei Beanspruchung dieser Rückenlehnen im bestimmungsgemäßen Gebrauch, das heißt bei einer auf dem Bürostuhl sitzenden und die Rückenlehne belastenden Person. Bei Slim-Rückenlehnen werden meist dieselben kostenintensiven, aufwändigen Materialien verwendet, wie sie beispielsweise bei netzbespannten Rücklehnen verwendet werden, da auch hier entsprechende Anforderungen an die Zugbelastbarkeit und Elastizität gelten.In addition to the aforementioned backrest variants, that is, on the one hand, the full upholstery and the other hand, the mesh fabric, there is an increasing need, especially for design and optical reasons, to use a very thin, so-called slim padding. Such slim upholstery are much thinner than the usual upholstered backrests, where only a very thin foam layer or sometimes no foam filling is present. The problem with these so-called slim backrests is always the stability and in particular the tensile strength under use of these backrests in normal use, that is, in a seated on the office chair and the backrest burdening person. In the case of slim backrests, the same expensive, complex materials are usually used as are used, for example, in the case of net-stretched backrests, since here too there are corresponding requirements for tensile strength and elasticity.
Vor diesem Hintergrund liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine kostengünstige und nichtsdestotrotz sehr stabile Sitzmöbelkomponente für ein Sitzmöbel anzugeben.Against this background, the present invention seeks to provide an inexpensive and nonetheless very stable seating furniture component for a chair.
Erfindungsgemäß wird diese Aufgabe durch eine Sitzmöbelkomponente mit den Merkmalen des Patentanspruchs 1 und/oder durch eine Rückenlehne mit den Merkmalen des Patentanspruches 14 gelöst.According to the invention this object is achieved by a seating furniture component having the features of claim 1 and / or by a backrest having the features of
Demgemäß ist vorgesehen:
- Eine Sitzmöbelkomponente mit zumindest teilweise elastischer Bespannung, insbesondere Rückenlehne eines Sitzmöbels, mit einem Rahmen, mit einer am Rahmen befestigten oder in den Rahmen eingespannten, belastungsstabilen Membran, welche zumindest an einer Befestigungsschnittstelle im Bereich des Rahmens zugbelastbar ausgebildet ist und welche zumindest in einem Bereich der bestimmungsgemäßen Belastung der Sitzmöbelkomponente druckbelastbar ausgebildet ist, mit einem Bezug, der eine vorderseitige Sichtseite, die die Nutzoberfläche der Sitzmöbelkomponente bildet, und eine rückseitige Sichtseite, die die Rückseite der Sitzmöbelkomponente bildet, aufweist und welcher zusammen mit dem Rahmen die Membran vollständig abdeckt, wobei der Rahmen eine Clipsleiste und/oder Kederleiste enthält, die die Befestigungsschnittstelle bildet und dazu ausgebildet ist, in einer entsprechend ausgebildeten Befestigungsschnittstelle des Sitzmöbels eingeclipst bzw. eingehängt zu werden.
- Sitzmöbel, insbesondere Bürodrehstuhl oder Konferenzstuhl, mit einem Stuhlfuß, einem Sitzträger und einem darauf aufgebrachten Sitz, mit einer erfindungsgemäßen Rückenlehne, die einen Rückenlehnenrahmen aufweist, über welchen die Rückenlehne an dem Sitzträger des Sitzmöbels befestigt ist.
- A seating component with at least partially elastic covering, in particular the backrest of a chair, with a frame, with a frame attached to the frame or clamped in the frame, load-stable membrane, which is formed zugbelastbar at least at a mounting interface in the frame and which at least in one area intended occupancy of the seating furniture component pressure-resistant is formed, with a reference, which has a front side view forming the Nutzoberfläche the seating furniture component, and a rear side view, which forms the back of the seating furniture component, and which together with the frame completely covers the membrane, wherein the Frame includes a clip strip and / or Kederleiste, which forms the mounting interface and is adapted to be clipped or suspended in a correspondingly formed mounting interface of the chair.
- Seating furniture, in particular office swivel chair or conference chair, having a chair base, a seat support and a seat applied thereon, having a backrest according to the invention, which has a backrest frame, via which the backrest is fastened to the seat support of the seat.
Die der vorliegenden Erfindung zugrunde liegende Erkenntnis besteht darin, dass es bei einem Polsteraufbau und insbesondere bei einem so genannten Slim-Polsteraufbau nicht notwendig ist, einen solchen Polsterüberzug bereitzustellen, der auf der einen Seite die für den Polsterüberzug erforderlichen Anforderungen, wie etwa Sitzkomfort, Ästhetik, haptische Eigenschaften und dergleichen, aufweist und darüber hinaus auch die sehr hohe Anforderung an die Zug-/Druckstabilität der straffen Polsterung und die Elastizität umfasst. Insbesondere ist es eine Erkenntnis der vorliegenden Erfindung, dass Materialien, die eine Vielzahl solcher Eigenschaften gleichzeitig erfüllen müssen, einen sehr hochwertigen und damit teuren Bezugsstoff implizieren.The finding underlying the present invention is that it is not necessary in a padding construction, and in particular in a so-called slim padding structure, to provide such a padding cover which on the one hand requires the requirements for the padding covering, such as seating comfort, aesthetics , Haptische properties and the like, and also includes the very high demands on the tensile / compressive stability of the tight padding and elasticity. In particular, it is a recognition of the present invention that materials which have to satisfy a plurality of such properties simultaneously imply a very high quality and therefore expensive fabric.
Vor diesem Hintergrund ist es daher die Idee der vorliegenden Erfindung, die Eigenschaften der Belastungsstabilität einerseits, dabei insbesondere die Zug- und Druckfestigkeit und Elastizität, und die beim bestimmungsgemäßen Gebrauch den Sitzkomfort und das Design bestimmenden Eigenschaften andererseits voneinander zu trennen. Der erfindungsgemäße, mehrschichtige Polsteraufbau weist daher einen vorderseitigen und einen rückseitigen Polsterbezug auf, die die hier benötigten Eigenschaften aufweisen, wie etwa besonders geeignete haptische Eigenschaften, Sitzkomforteigenschaften, ästhetische Eigenschaften und dergleichen. Dieser vorderseitige bzw. ggfs. auch der rückseitige Polsterbezug stellen gleichermaßen auch die Sichtseite des Polsterbezuges dar.Against this background, it is therefore the idea of the present invention to separate the properties of stress stability on the one hand, in particular the tensile and compressive strength and elasticity, and on the other hand, the seat comfort and the design determining properties during normal use. The multi-layer padding construction according to the invention therefore has front and back cushion coverings which have the properties required here, such as particularly suitable haptic properties, seat comfort properties, aesthetic properties and the like. This front side or, if necessary, also the back upholstery cover likewise represent the visible side of the upholstery cover.
Die Belastungsstabilität wird durch eine eigens dafür vorgesehene Membran erfüllt, welche im bestimmungsgemäßen Gebrauch in einem nicht sichtbaren Bereich zwischen dem vorderseitigen und dem rückseitigen Polsterbezug angeordnet ist. Der besondere Vorteil der vorliegenden Erfindung besteht nun darin, dass diese Membran ausschließlich der Belastungsstabilität dient und daher ausschließlich im Hinblick auf diese Eigenschaften optimiert werden kann. Zusätzliche Eigenschaften, wie etwa ästhetische Eigenschaften, die Haptik bestimmende Eigenschaften und dergleichen, sind bei der Membran nicht relevant und müssen daher auch nicht berücksichtigt werden, zumal diese Membran von außen eben nicht sichtbar oder daher auch nicht fühlbar ist. Insofern kann für eine solche Tragemembran eben auch eine vergleichsweise kostengünstige Lösung eingesetzt werden.The load stability is met by a dedicated membrane, which in normal use in a non-visible area between the front and the back upholstery cover is arranged. The particular advantage of the present invention consists in the fact that this membrane is used exclusively for load stability and therefore can be optimized exclusively with regard to these properties. Additional properties, such as aesthetic properties, the haptic properties and the like, are not relevant to the membrane and therefore need not be taken into account, especially since this membrane from the outside just not visible or therefore not felt. In this respect, even a comparatively cost-effective solution can be used for such a support membrane.
Der gesamte Polsteraufbau lässt sich aufgrund der Trennung der Eigenschaften vergleichsweise kostengünstig bereitstellen, da die jeweiligen Bestandteile des Polsteraufbaus jeweils getrennt optimiert werden können.The entire upholstery structure can be provided relatively inexpensively due to the separation of the properties, since the respective components of the upholstery structure can each be optimized separately.
Der Rahmen weist eine Clipsleiste auf. Diese Clipsleiste bildet die Befestigungsschnittstelle der Sitzmöbelkomponente und ist zu diesem Zweck dazu ausgebildet, in einer entsprechend ausgebildeten Befestigungsschnittstelle des Sitzmöbels eingeclipst zu werden. Statt der Verwendung einer Clipsleiste kann zusätzlich oder alternativ auch eine Kederleiste verwendet werden. Diese Clipsleiste bzw. die Kederleiste ist in der Regel elastisch verformbar ausgebildet, gewährleistet aber zumindest eine gewisse Formstabilität für die Sitzmöbelkomponente, sofern diese Sitzmöbelkomponente keinen eigenen formstabilen Rahmen aufweist. Diese Clipsleiste bzw. die Kederleiste lässt sich aufgrund deren Beschaffenheit in eine eigens dafür vorgesehene Befestigungsschnittstelle eines Rahmens des Sitzmöbels einclipsen bzw. dort einhängen. Auf diese Weise wird eine sehr elegante und nichtsdestotrotz sehr stabile Befestigung der Sitzmöbelkomponente an das Sitzmöbel gewährleistet. Dies lässt sich sehr einfach und schnell bewerkstelligen, was den Montageaufwand signifikant verringert. Zudem ist die Clipsleiste bzw. die Kederleiste aufgrund deren, im Vergleich zu einem herkömmlichen formstabilen Rahmen, sehr viel dünneren Ausprägung dazu geeignet, dem Sitzmöbel eine sehr leichte Erscheinung zu vermitteln. Dies ist insbesondere aus designtechnischen Gründen von besonderem Vorteil, wobei aufgrund des zwar dünnen, aber formstabilen Rahmens nichtsdestotrotz eine hohe Stabilität des Sitzmöbels gewährleistet ist.The frame has a clip bar. This clip strip forms the attachment interface of the seating furniture component and is designed for this purpose to be clipped into a correspondingly formed attachment interface of the seat. Instead of using a clip strip, in addition or as an alternative, a welt strip can also be used. This clip strip or the welt strip is formed elastically deformable in the rule, but at least ensures a certain dimensional stability for the seating furniture component, unless this seating furniture component has its own dimensionally stable frame. Due to their nature, this clip strip or the welt strip can be clipped into or hung in a specially provided attachment interface of a frame of the chair. In this way, a very elegant and nonetheless very stable attachment of the seating furniture component is guaranteed to the seating. This can be done very easily and quickly, which significantly reduces the assembly effort. In addition, the clip strip or the piping strip due to their, in comparison to a conventional dimensionally stable frame, much thinner expression suitable for imparting a very light appearance to the seating. This is particularly of design technical reasons of particular advantage, nevertheless a high stability of the chair is ensured due to the thin but dimensionally stable frame nonetheless.
Vorteilhafte Ausgestaltungen und Weiterbildungen ergeben sich aus den weiteren Unteransprüchen sowie aus der Beschreibung unter Bezugnahme auf die Figuren der Zeichnung.Advantageous embodiments and further developments will become apparent from the other dependent claims and from the description with reference to the figures of the drawing.
In einer besonders bevorzugten Ausgestaltung ist der Bezug zweiteilig ausgebildet. Der zweiteilig ausgebildete Bezug weist einen vorderseitigen und einen rückseitigen Bezug auf, wobei zumindest der vorderseitige Bezug in einem Randbereich der Sitzmöbelkomponente über zumindest eine Naht mit der Membran vernäht ist. Denkbar wäre alternativ auch, wenn der vorderseitige Bezug an dem Rahmen geklammert ist. Denkbar wäre natürlich auch andere Befestigungsart, beispielsweise eine Verbindung der beiden Bezüge durch (Druck-)Knöpfe, Reißverschlüsse oder dergleichen. Der besondere Vorteil der zweiteiligen Ausgestaltung der Bezüge besteht darin, dass hier unterschiedliche Materialien für die Bezüge verwendet werden können. Beispielsweise können die Eigenschaften des vorderseitigen Bezugs und des rückseitigen Bezugs gezielt auf deren bestimmungsgemäße Benutzung optimiert werden. Beispielsweise ist es sinnvoll, dass die vorderseitige Sichtseite, die beispielsweise im Falle einer Rückenlehne oder eines Stuhlsitzes benutzt wird, eine haptisch sehr anspruchsvolle weiche Oberfläche aufweist, reibungsempfindlich ist und insbesondere auch luftdurchlässig ist. Diese Eigenschaften müssen nicht notwendigerweise für beide Seiten und insbesondere nicht notwendigerweise für die rückseitige Sichtseite gelten, insbesondere wenn die Sitzmöbelkomponente der Sitz eines Sitzmöbels ist.In a particularly preferred embodiment, the cover is formed in two parts. The two-part formed cover has a front and a rear cover, wherein at least the front side cover is sewn in an edge region of the seating furniture component via at least one seam with the membrane. It would also be conceivable, alternatively, if the front cover is clamped to the frame. Conceivable, of course, would be another type of attachment, such as a connection of the two covers by (pressure) buttons, zippers or the like. The particular advantage of the two-part design of the covers is that different materials for the covers can be used here. For example, the properties of the front cover and the back cover can be optimized specifically for their intended use. For example, it makes sense that the front-side visible side, which is used for example in the case of a backrest or a chair seat, has a haptic very sophisticated soft surface, is sensitive to friction and in particular is also permeable to air. These properties do not have to necessarily apply to both sides, and in particular not necessarily to the rear side, especially when the seating component is the seat of a chair.
In einer ebenfalls bevorzugten Ausgestaltung lässt sich der Bezug sackartig über den Rahmen stülpen, sofern der Bezug einteilig z.B. in Form eines Sackes ausgebildet ist. In dieser Ausgestaltung ist eine besonders einfache Montage möglich. Zudem ist der Austausch des Bezuges auch sehr einfach möglich, beispielsweise wenn der Bezug gereinigt werden muss. Im Falle des sackartigen Überstülpens des Bezuges ist die Membran vollständig von dem Bezug abgedeckt.In a likewise preferred embodiment, the cover can be slipped over the frame in a bag-like manner, provided that the cover is made in one piece, e.g. is formed in the form of a bag. In this embodiment, a particularly simple assembly is possible. In addition, the replacement of the cover is also very easy, for example, when the cover must be cleaned. In the case of bag-like evasion of the cover, the membrane is completely covered by the cover.
In einer Ausgestaltung der Erfindung ist die Membran netzförmig, maschenförmig oder vließförmig ausgebildet. Derartige netzförmige oder netzartige Materialien sind zum Beispiel die von der Firma Gabriel unter dem Markennamen Runner oder Harlekin vertriebene Stoffe. Die Membran kann gewebt oder auf andere Weise hergestellt sein.In one embodiment of the invention, the membrane is net-shaped, mesh-shaped or vließförmig. Such reticulated or reticulated materials are, for example, the materials marketed by Gabriel under the brand name Runner or Harlequin. The membrane may be woven or otherwise made.
In einer besonders bevorzugten Ausgestaltung ist zumindest der vorderseitige Bezug aus einem funktionstextilen, insbesondere atmungsaktiven Material gefertigt. Vorzugsweise sind beide Bezüge, das heißt der vorderseitige und rückseitige Bezug, sowie die Membran aus dem funktionstextilen Material. Als Funktionstextilen bezeichnet man solche Textilien aus Fasern, Garnen, Geweben, Gewirken und dergleichen mit funktionellem Mehrwert. Diese funktionellen Mehrwerteigenschaften beziehen sich vorzugsweise auf die Atmungsaktivität. Weitere funktionelle Eigenschaften können die Winddichtheit, Wasserdichtheit, Thermoregulierung, Schmutzabweisung, UV-Beständigkeit, Elastizität, Strapazierfähigkeit, etc. sein. Daneben kann auch als funktionale Eigenschaften die wärmende oder kühlende Eigenschaft angesehen sein. Daneben ist es auch vorteilhaft, Funktionstextilien zu verwenden, die besonders leicht sind, um dadurch das gesamte Gewicht des Stuhls zu reduzieren. Insbesondere die Atmungsaktivität ist die besonders bevorzugte Eigenschaft, um den Sitzkomfort einer auf dem Sitzmöbel sitzenden Person zu verbessern. Die Atmungsaktivität bezeichnet die Fähigkeit, Wasserdampf, der beispielsweise von dem Körper einer auf dem Stuhl sitzenden Person abgegeben wird, entweichen zu lassen. Besonders bevorzugt ist es, wenn solche Materialien verwendet werden, die 30-300 g Wasserdampf pro Stunde entweichen lassen von S.8. Bekannte Markennamen für Funktionstextilien mit guter Atmungsaktivität sind zum Beispiel GORE-TEX oder Sympatex. Daneben ist es auch vorteilhaft, wenn Materialien verwendet werden, die insbesondere winddicht sind, um z.B. im Falle einer membranbespannten Rückenlehne eine Unterkühlung des Rückens der auf dem Stuhl sitzenden Person zu vermeiden. Schließlich ist es insbesondere für Sitze eines Sitzmöbels vorteilhaft, wenn hier strapazierfähige, die Abnutzung vermeidende oder verringernde Materialien verwendet werden.In a particularly preferred embodiment, at least the front cover is made of a functional textile, in particular breathable material. Preferably, both covers, that is, the front and back cover, as well as the membrane of the functional fabric material. Functional textiles are textiles of fibers, yarns, fabrics, knitted fabrics and the like with functional added value. These functional added-value properties preferably relate to the breathability. Other functional properties may include windproof, waterproof, thermoregulation, stain resistance, UV resistance, elasticity, durability, etc. In addition, the warming or cooling property can also be considered as functional properties. Besides, it is also beneficial Functional textiles that are particularly lightweight, thereby reducing the overall weight of the chair. In particular, the breathability is the particularly preferred property to improve the seating comfort of a person sitting on the chair. Breathability refers to the ability to release water vapor released, for example, from the body of a person sitting on the chair. It is particularly preferred when using those materials which allow 30-300 g of water vapor to escape per hour from S.8. Well-known brand names for functional textiles with good breathability are for example GORE-TEX or Sympatex. In addition, it is also advantageous if materials are used which are in particular windproof, for example, in the case of a membrane-covered backrest to avoid hypothermia of the back of the person sitting on the chair. Finally, it is particularly advantageous for seats of a chair, if hard-wearing, wear-avoiding or reducing materials are used here.
In einer weiteren bevorzugten Ausgestaltung ist die Membran als ein tragstabiles, zug- und druckfestes Kunststoffnetz, Kunststofffasergewebe, Metallnetz, Metallfasergewebe und/oder Netz aus faserverstärktem Material, wie etwa CFK oder GFK, ausgebildet. Im Falle von aus Kunststoff ausgebildeter Membrane können diese aus beliebigen Chemiefasern oder Polymeren bestehen, wie etwa PET (Polyethylenterephthalat), die vielseitige Eigenschaften aufweisen und deshalb eine bevorzugte synthetische Faser darstellt. Polyesterfaser (PES) sind sehr reiß- und scheuerfest, nehmen allerdings kaum Feuchtigkeit auf. Besonders vorteilhaft ist die Ausgestaltung der Membran aus Polyamid (PA), wie etwa Nylon, Perlon, etc., die sehr elastisch und zugstabil sind. Daneben lassen sich auch andere Kunststoffmaterialien, wie Polyimid (PI), Polyamidimid (PAI), Polyvinylsulfid (PPS), Aramid und dergleichen verwenden, je nachdem welche Eigenschaften gewünscht sind. Letztere Materialien weisen eine sehr hohe Reißfestigkeit auf und eignen sich daher besonders für sehr zugfeste Membrane. Daneben können auch Materialien wie Polytetrafluorethylen (PTFE) verwendet werden, die sehr temperaturbeständig, chemisch weitgehend inert und wasserabweisend sind und beispielsweise unter dem Handelsnamen GORE-TEX verwendet wird. Dieses Material wird vorzugsweise für den Bezug verwendet, kann allerdings auch für die Membran verwendet werden. Für den Bezug lassen sich insbesondere Polyethylen (PE) und Polypropylen (PP) verwenden. Letztere Faser ist eine sehr leichte Textilfaser und weist darüber hinaus eine hohe Elastizität auf. Daneben können auch glasfaserverstärkte Materialien (GFK) verwendet werden, die wenig dehnbar und spröde sind und sich daher zur Verstärkung von Kunststoffgeweben und Netzen eignen, wie sie zum Beispiel für die Membrane. Neben den glasfaserverstärkten Kunststoffen lassen sich auch kohlenstofffaserverstärkte Kunststoffe (CFK) verwenden, die ebenfalls sehr leicht sind und eine sehr hohe Festigkeit aufweisen. Neben den eben genannten Kunststoffmaterialien lässt sich vor allem für die Membran auch sehr einfache Metallnetze, Metallgewebe und dergleichen verwenden, da diese Gewebe eben nicht sichtbar ist und daher auch kein besonders ansprechendes Erscheinungsbild aufweisen müssen. Besonders bevorzugt werden sehr stabile und feste Metallnetze und Gewebe verwendet, die vorzugsweise auch sehr kostengünstig sind. Neben Metallnetzen lassen sich darüber hinaus auch Netze aus Keramikfasern oder Keramik enthaltenden Materialien verwenden.In a further preferred embodiment, the membrane is designed as a load-bearing, tensile and pressure-resistant plastic net, plastic fiber fabric, metal mesh, metal fiber fabric and / or mesh of fiber-reinforced material, such as CFK or GFRP. In the case of plastic-formed membranes, they may be made of any man-made fibers or polymers, such as PET (polyethylene terephthalate), which have versatile properties and therefore constitute a preferred synthetic fiber. Polyester fiber (PES) are very tear and scuff resistant, but absorb hardly any moisture. Particularly advantageous is the design of the membrane made of polyamide (PA), such as nylon, nylon, etc., which are very elastic and tensile. In addition, other plastic materials such as polyimide (PI), polyamide-imide (PAI), polyvinylsulfide (PPS), aramid and the like may be used, depending which properties are desired. The latter materials have a very high tensile strength and are therefore particularly suitable for very tensile membrane. In addition, materials such as polytetrafluoroethylene (PTFE) can be used, which are very temperature resistant, chemically largely inert and water-repellent and is used for example under the trade name GORE-TEX. This material is preferably used for the cover, but can also be used for the membrane. In particular polyethylene (PE) and polypropylene (PP) can be used for the cover. The latter fiber is a very light textile fiber and also has a high elasticity. In addition, glass fiber reinforced materials (GRP) can be used, which are less elastic and brittle and are therefore suitable for reinforcing plastic fabrics and nets, as for example for the membrane. In addition to the glass fiber reinforced plastics, carbon fiber reinforced plastics (CFRP) can also be used, which are also very light and have a very high strength. In addition to the plastic materials just mentioned, especially for the membrane, it is also possible to use very simple metal nets, metal mesh and the like, since these fabrics are not visible and therefore do not have to have a particularly appealing appearance. Very particular preference is given to the use of very stable and strong metal nets and fabrics, which are preferably also very inexpensive. In addition to metal nets can also use networks of ceramic fibers or ceramic-containing materials.
In einer weiteren Ausgestaltung ist die Sitzmöbelkomponente als Rückenlehne ausgebildet. Die Sitzmöbelkomponente weist einen Rückenlehnenträger auf, über den die Rückenlehne an einem Sitzträger des Sitzmöbels befestigt ist. Die erfindungsgemäße Ausgestaltung des Polsteraufbaus bestehend aus Bezug und Membran ist hier besonders elegant. Der sichtbare Bezug dient dem aus designtechnischen Gründen optimierbaren äußeren Erscheinungsbild. Dieser Bezug kann daher hinsichtlich dieser Eigenschaften und insbesondere im Hinblick auf die Atmungsaktivität, Scheuerfestigkeit, haptische Eigenschaften und dergleichen optimiert werden. Die für die Belastung der Rückenlehne wesentlichen Eigenschaften der Elastizität und Zug- und Druckfestigkeit werden durch die gewissermaßen im Inneren des Bezugs versteckte und damit nicht sichtbare Membran erfüllt. Diese Membran lässt sich daher ausschließlich auf diese Eigenschaften optimieren, so dass sehr viel kostengünstigere Materialien für diese Membran verwendet werden können d.h. optische Eigenschaften spielen hier keine Rolle. Damit erhält man eine Rückenlehne, die ein sehr dünnes und nichtsdestotrotz sehr ansprechendes Erscheinungsbild aufweist und darüber hinaus auch die geforderte Zug- und Druckfestigkeit bietet. Besonders bevorzugt ist diese Art der Rückenlehne, sofern sie mit einem Slim-Polster ausgestattet ist.In a further embodiment, the seating furniture component is designed as a backrest. The seating furniture component has a backrest support, via which the backrest is fastened to a seat support of the seat. The inventive design of the upholstery structure consisting of reference and membrane is particularly elegant here. The visible cover is used for design-technical reasons optimizable external appearance. This cover can therefore be optimized with regard to these properties and in particular with regard to the breathability, abrasion resistance, haptic properties and the like. The essential for the load on the backrest properties of elasticity and tensile and compressive strength are met by the hidden so to speak inside the cover and thus not visible membrane. This membrane can therefore be optimized exclusively for these properties, so that much more cost-effective materials can be used for this membrane, ie optical properties play no role here. This gives a backrest that has a very thin and nonetheless very appealing appearance and also provides the required tensile and compressive strength. Particularly preferred is this type of backrest, provided it is equipped with a Slim-upholstery.
In einer bevorzugten Ausgestaltung ist der Rahmen formstabil ausgebildet und bildet den Lehnenrahmen der Rückenlehne. In einer ebenfalls bevorzugten Ausgestaltung wird der Rahmen durch die Befestigungsschnittstelle der Sitzmöbelkomponente gebildet, welche in den Rückenlehnenträger eingeclipst oder eingehängt wird. Auf diese Weise ist es möglich, einen sehr dünnen, wenig massiv erscheinenden Rahmen zu realisieren, sodass die gesamte Rückenlehne ein besonders leicht wirkendes Erscheinungsbild zeigt. Dies ist insbesondere dann von besonderem Vorteil, wenn der Rahmen der Rückenlehne sichtbar ist.In a preferred embodiment, the frame is formed dimensionally stable and forms the back frame of the backrest. In a likewise preferred embodiment, the frame is formed by the attachment interface of the seating furniture component, which is clipped or suspended in the backrest support. In this way, it is possible to realize a very thin, less massive appearing frame, so that the entire backrest shows a particularly light-looking appearance. This is particularly advantageous when the frame of the backrest is visible.
In einer weiteren Ausgestaltung reichen der rückseitige Bezug sowie die Membran lediglich bis zu einem inneren Randbereich der Sitzmöbelkomponente. Dort sind diese an dem vorderseitigen Bezug befestigt, beispielsweise über eine Naht vernäht. Der besondere Vorteil besteht hier darin, dass die Sitzmöbelkomponente in deren äußeren Randbereich dann lediglich die Dicke des vorderseitigen Bezugs aufweist. In diesem Bereich lässt sich beispielsweise die Befestigungsschnittstelle, die zum Beispiel als Kederleiste oder Clipsleiste ausgebildet ist, befestigen. Der so ausgebildete Polsterbezug kann somit beispielsweise von vorne oder von hinten direkt an einen dünnen Rückenlehnenrahmen des Sitzmöbels eingeclipst oder eingehängt werden. Zudem wird auf diese Weise verhindert, dass beispielsweise die möglicherweise weniger ansehnliche Membran oder der möglicherweise weniger hochwertige rückseitige Bezug nicht von der Vorderseite her, das heißt von der Sichtseite bzw. der Seite des vorderseitigen Bezugs, sichtbar ist. Dennoch ist die Stabilität gewährleistet, da die verschiedenen Bezüge und die Membran miteinander vernäht oder auf andere Weise miteinander befestigt sind.In a further embodiment, the rear cover and the membrane only extend to an inner edge region of the seating furniture component. There they are attached to the front cover, for example sewn over a seam. The particular advantage here is that the seating furniture component in the outer edge region then only has the thickness of the front-side cover. In this area, for example, the attachment interface, which is designed for example as Kederleiste or clip bar, fasten. The so-formed upholstery cover can thus be clipped or hooked directly from the front or from the back directly to a thin backrest frame of the chair. Moreover, in this way it is prevented, for example, that the possibly less attractive membrane or the possibly less high-quality rear cover is not visible from the front side, that is to say from the visible side or the side of the front cover. Nevertheless, the stability is ensured because the various covers and the membrane are sewn together or otherwise secured together.
In einer weiteren Ausgestaltung ist die Sitzmöbelkomponente als Flachpolster ausgebildet, insbesondere als Rückenlehne mit einem Flachpolster. Zu diesem Zweck weist die Sitzmöbelkomponente im Inneren eine dünne Schaumstoffschicht auf, welche im Inneren der Sitzmöbelkomponente zwischen dem vorderseitigen und rückseitigen Bezug und vorzugsweise zwischen dem vorderseitigen Bezug und der Membran, angeordnet ist. Im Unterschied zu einer voll gepolsterten Sitzmöbelkomponente weist diese flach gepolsterte Sitzmöbelkomponente ein sehr viel dünneres Erscheinungsbild auf und wirkt damit sehr viel leichter, was aus designtechnischen Gründen vorteilhaft ist.In a further embodiment, the seating furniture component is designed as a flat cushion, in particular as a backrest with a flat cushion. For this purpose, the seating component inside a thin foam layer, which is arranged in the interior of the seating furniture component between the front and rear cover, and preferably between the front cover and the membrane. In contrast to a fully upholstered seating furniture component, this flat upholstered seating component has a much thinner appearance and thus works much easier, which is advantageous for design reasons.
In einer weiteren Ausgestaltung weist zumindest die Membran in einem inneren Bereich der Sitzmöbelkomponente eine höhere Elastizität auf als in einem Randbereich der Sitzmöbelkomponente, an der diese beispielsweise an einem Rahmen befestigt ist. Zusätzlich kann auch vorgesehen sein, dass zumindest einer oder auch beide Bezüge die gleichen Eigenschaften aufweisen, das heißt, dass diese in einem inneren Bereich der Sitzmöbelkomponente eine höhere Elastizität aufweisen als in einem Randbereich. Dies ist insbesondere dann von Vorteil, wenn die Sitzmöbelkomponente zum Beispiel der Sitz oder die Rückenlehne eines Sitzmöbels ist, die im bestimmungsgemäßen Gebrauch von einer auf dem Sitzmöbel sitzenden Person vorzugsweise im inneren Bereich der Sitzmöbelkomponente belastet wird. Auch aus Komfortgründen kann dies vorteilhaft sein, wenn z.B. sofern ein zu harter Sitz bzw. eine zu harte Rückenlehne vermieden werden soll.In a further embodiment, at least the membrane in a inner region of the seating furniture component has a higher elasticity than in an edge region of the seating furniture component, to which it is attached, for example, to a frame. In addition, it can also be provided that at least one or even both covers have the same properties, that is, that they are in an inner region of the seating furniture component have a higher elasticity than in a border area. This is particularly advantageous when the seating component is, for example, the seat or the backrest of a chair, which is loaded in the intended use of a person sitting on the chair, preferably in the inner region of the seating furniture component. Also for reasons of comfort, this can be advantageous if, for example, if too hard a seat or too hard a backrest should be avoided.
Die obigen Ausgestaltungen und Weiterbildungen lassen sich, sofern sinnvoll, beliebig miteinander kombinieren. Weitere mögliche Ausgestaltungen, Weiterbildungen und Implementierungen der Erfindung umfassen auch nicht explizit genannte Kombinationen von zuvor oder im Folgenden bezüglich der Ausführungsbeispiele beschriebenen Merkmale der Erfindung. Insbesondere wird dabei der Fachmann auch Einzelaspekte als Verbesserungen oder Ergänzungen zu der jeweiligen Grundform der vorliegenden Erfindung hinzufügen.The above embodiments and developments can, if appropriate, combine with each other as desired. Further possible refinements, developments and implementations of the invention also include combinations, not explicitly mentioned, of features of the invention described above or below with regard to the exemplary embodiments. In particular, the person skilled in the art will also add individual aspects as improvements or additions to the respective basic form of the present invention.
Die vorliegende Erfindung wird nachfolgend anhand der in den schematischen Figuren der Zeichnungen angegebenen Ausführungsbeispiele näher erläutert. Es zeigen dabei:
- Figur 1
- eine schematische Darstellung einer ersten Ausgestaltung einer erfindungsgemäßen Sitzmöbelkomponente;
- Figur 2
- eine schematische Darstellung einer zweiten Ausgestaltung einer erfindungsgemäßen Sitzmöbelkomponente;
- Figur 3
- eine schematische Darstellung einer dritten Ausgestaltung einer erfindungsgemäßen Sitzmöbelkomponente;
- Fig. 4A, 4B
- einen Bürodrehstuhl mit einer erfindungsgemäßen Sitzmöbelkomponente in einer perspektivischen Vorderseitendarstellung bzw. Rückseitendarstellung;
- Figur 5
- in einer ausschnittsweisen Querschnittsansicht ein erstes Ausführungsbeispiel der Anbindung einer erfindungsgemäßen Polsteranordnung an den Rahmen einer Rückenlehne;
- Figur 6
- in einer ausschnittsweisen Querschnittsansicht ein zweites Ausführungsbeispiel der Anbindung einer erfindungsgemäßen Polsteranordnung an den Rahmen einer Rückenlehne.
- FIG. 1
- a schematic representation of a first embodiment of a seating furniture component according to the invention;
- FIG. 2
- a schematic representation of a second embodiment of a seating furniture component according to the invention;
- FIG. 3
- a schematic representation of a third embodiment of a seating furniture component according to the invention;
- Fig. 4A, 4B
- an office swivel chair with a seating furniture component according to the invention in a perspective front side representation or back side representation;
- FIG. 5
- in a partial cross-sectional view of a first embodiment of the connection of a cushion arrangement according to the invention to the frame of a backrest;
- FIG. 6
- in a fragmentary cross-sectional view of a second embodiment of the connection of a cushion arrangement according to the invention to the frame of a backrest.
Die beiliegenden Zeichnungen sollen ein weiteres Verständnis der Ausführungsformen der Erfindung vermitteln. Sie veranschaulichen Ausführungsformen und dienen im Zusammenhang mit der Beschreibung der Erklärung von Prinzipien und Konzepten der Erfindung. Andere Ausführungsformen und viele der genannten Vorteile ergeben sich im Hinblick auf die Zeichnungen. Die Elemente der Zeichnungen sind nicht notwendigerweise maßstabsgetreu zueinander gezeigt.The accompanying drawings are intended to provide further understanding of the embodiments of the invention. They illustrate embodiments and, together with the description, serve to explain principles and concepts of the invention. Other embodiments and many of the stated advantages will become apparent with reference to the drawings. The elements of the drawings are not necessarily shown to scale to each other.
In den Figuren der Zeichnung sind gleiche, funktionsgleiche und gleich wirkende Elemente, Merkmale und Komponenten - sofern nichts Anderes ausführt ist - jeweils mit denselben Bezugszeichen versehen.In the figures of the drawing are the same, functionally identical and same-acting elements, features and components - unless otherwise stated - each provided with the same reference numerals.
Die Sitzmöbelkomponente 10 umfasst einen vorzugsweise formstabilen Rahmen 11 und eine Polsteranordnung 12 auf. Die Polsteranordnung 12 enthält zumindest einen Bezug 13 sowie eine Membran 14.The
Die Membran 14 ist als belastungsstabiles Membran 14 ausgebildet und in den Rahmen 11 eingespannt. Die Membran 14 ist an einer Befestigungsschnittstelle 15 am Rahmen 11 angebracht oder mit dem Rahmen 11 fixiert. An dieser Befestigungsschnittstelle 15 ist die Membran 14 zugbelastbar am Rahmen ausgebildet. Zudem ist der Rahmen 11 im Bereich 16 der bestimmungsgemäßen Belastung druckbelastbar ausgebildet. Dieser Bereich 16 der bestimmungsgemäßen Belastung ist im Falle einer als Sitz ausgebildeten Sitzmöbelkomponente 10 derjenige Bereich, mit welchem eine Person auf dem Sitz sitzt. Im Falle einer als Rückenlehne ausgebildeten Sitzmöbelkomponente 10 ist das derjenige Bereich, mit welchem der Rücken einer Person in Kontakt mit der Rücklehne kommt.The
Der Bezug 13 kann einteilig oder mehrteilig, z.B. zweiteilig, ausgebildet sein. Der Bezug 13 weist eine vorderseitige Sichtseite 17 und eine rückseitige Seite 18 auf. Die vorderseitige Sichtseite 17 bildet die Nutzoberfläche der Sitzmöbelkomponente, im Falle einer als Sitz ausgebildeten Sitzmöbelkomponente 10 die Sitzoberfläche. Die rückseitige Seite 18 bildet die Rückseite der Sitzmöbelkomponente und ist, insbesondere im bestimmungsgemäßen Gebrauch oft nicht sichtbar. Wesentlich ist, dass der Bezug 13, also die vorderseitige Sichtseite 17 und die rückseitige Seite 18 zusammen mit dem Rahmen 11 die Membran 14 vollständig abdeckt, sodass die Membran 14 im bestimmungsgemäßen Gebrauch nicht sichtbar ist.The
Die Membran 14 ist aus einem tragstabilen, zug- und druckfesten Material ausgebildet, z.B. einem Kunststoffnetz, Kunststofffasergewebe, Metallnetz, Metallfasergewebe und/oder Netz aus faserverstärktem Material. Vor allem im Falle einer als Sitz oder Rückenlehne ausgebildeten Sitzmöbelkomponente 11 ist die Membran 14 und vorzugsweise auch der Bezug 13 aus einem funktionstextilen Material, insbesondere aus einem atmungsaktiven Material.The
Die Sitzmöbelkomponente 10 in
Die
Der Sitz 43 umfasst in der Regel zumindest eine Sitzfläche 44 bestehend aus einem Polster und einem Sitzträger sowie einer unter dem Sitzträger angeordneten Verstellmechnik (nicht sichtbar in den
Die Rückenlehne 41 weist einen struktureller Rückenlehnenrahmen 42 sowie eine in dem Rückenlehnenrahmen 42 eingespannte und fixierte Polsteranordnung 47 auf, wie sie zum Beispiel anhand der
Nachfolgend werden anhand der
Mit Bezugszeichen 50 ist hier ein Einrastrahmen 50 des Rückenlehnenträgers dargestellt. Der Einrastrahmen 50 hat in dieser vereinfachten Darstellung eine im Wesentlichen rechteckige Querschnittsform, wobei in die rechteckige Querschnittsform eine Kaschierrille 52 und Rastmittel 51 mit einer Rastnase und einer für Gegenrastmittel vorgesehenen weiteren Rille aufweist. Die Polsteranordnung der Rückenlehne 41 weist einen Polsterträger 14 auf, der durch die Membran 14 gebildet ist. Der Polsterträger 14 ist an Gegenrastmittel 54 und einen Polsterbefestigungsabschnitt 55 befestigt. Die Gegenrastmittel 54 sind mit den Rastmitteln 51 verrastet dargestellt, so dass die Gegenrastmittel 54 in Form einer Rastfeder in der Rille der Rastmittel 51 in Eingriff steht. Der Polsterbefestigungsabschnitt 55 ist in der Kaschierrille 52 versenkt. Auf der Sichtseite, also auf der Vorderseite der Rückenlehne, ist ein vorderseitiger Polsterbezug 56 vorgesehen. Dieser vorderseitige Polsterbezug 56 ist an dem Polsterbefestigungsabschnitt 55 angebracht. Auf der der Sichtseite gegenüberliegenden Seite, also auf der Rückseite der Rückenlehne 41, ist ein rückseitiger Polsterbezug 57 vorgesehen, der an dem Polsterträger 14 angebracht ist. Beispielsweise können die Polsterbezüge 56, 57 angeklebt, angeschweißt, angetackert, angenäht oder auf andere Art und Weise befestigt sein.With
Bevorzugt ist der Einrastrahmen 50 ein umlaufender Rahmen, so dass sich der Polsterträger 14 und die Polsterbezüge 56, 57 über einen umlaufenden Rahmen erstrecken.Preferably, the latching
Im Unterschied zum Ausführungsbeispiel in
Obwohl die vorliegende Erfindung anhand bevorzugter Ausführungsbeispiele vorstehend vollständig beschrieben wurde, ist sie darauf nicht beschränkt, sondern auf vielfältige Art und Weise modifizierbar.Although the present invention has been fully described above with reference to preferred embodiments, it is not limited thereto but is modifiable in a variety of ways.
Beispielsweise kann die Polsteranordnung nicht nur für eine Rückenlehne, sondern auch für eine Sitzfläche oder eine Armlehnenfläche, eine Kopfstützenfläche oder dergleichen eingesetzt werden. Denkbar ist auch der Einsatz bei anderen Möbelarten wie Loungemöbeln, Entspannungsmöbeln und dergleichen.For example, the cushioning arrangement can be used not only for a backrest, but also for a seat surface or an armrest surface, a headrest surface or the like. It is also conceivable use in other types of furniture such as lounge furniture, relaxation furniture and the like.
Der Bezug und die Membran sind nicht auf die genannten Materialien beschränkt. Vielmehr kann zum Beispiel als Bezug jeder geeignete Sitzmöbelbezug, wie beispielsweise Kunstleder, Echtleder, Baumwollgewebe, Fasergewebe oder dergleichen umfassen. The cover and the membrane are not limited to the materials mentioned. Rather, for example, any suitable seat cover, such as faux leather, real leather, cotton fabric, fiber fabric or the like may cover as reference.
Claims (14)
- Seating component (10) comprising lining which is resilient at least in part, in particular a backrest (41) of a seating furnishing (40),
comprising a frame (11),
comprising a membrane (14) which is fixed to the frame (11) or gripped in the frame (11), is stable under load, is formed subjectable to tensile load at least at a fastening interface in the region of the frame, and is formed subjectable to compressive load at least in a region of the intended loading of the seating component (10),
comprising a cover (13), which has a front visible face (17) forming the use surface (17) of the seating component (10) and a rear visible face (18) forming the rear face (18) of the seating component (10), and which together with the frame (11) completely covers the membrane (14), the frame (11) containing a clip strip and/or fill strip which forms the fastening interface (15) and is formed to be clipped into or suspended in a correspondingly formed fastening interface of the seating furnishing (40). - Seating component according to claim 1,
characterised in that
the cover (13) is formed in two parts, having a front and a rear cover (13; 17, 18), at least the front cover (13; 17) being stitched to the membrane (14) via at least one seam in an edge region of the seating component (10). - Seating component according to claim 1,
characterised in that
the cover (13) is formed in the manner of a sack and pulled over the frame (11). - Seating component according to any of the preceding claims,
characterised in that
the membrane (14) is in the form of a netting, mesh or fabric. - Seating component according to any of the preceding claims,
characterised in that
at least the front cover (13; 17), preferably both covers (13; 17, 18) and the membrane (14), is formed from a functional textile material, in particular from a breathable material. - Seating component according to any of the preceding claims,
characterised in that
the membrane (14) is formed as a plastics material netting which is stable under load and has high tensile and compressive strength, as a plastics material woven fabric, as a metal netting, as a metal woven fabric and/or as a netting of fibre-reinforced material. - Seating component according to any of the preceding claims,
characterised in that
the seating component (10) is formed as a backrest (41) which has a backrest frame (42) which has a connection region via which the backrest (41) can be fastened to a seat support of the seating furnishing (40). - Seating component according to claim 7,
characterised in that
the frame (11) is dimensionally stable and forms the backrest frame (42) of the backrest (41). - Seating component according to any of the preceding claims,
characterised in that
the rear cover (13) and the membrane (14) merely extend as far as an inner edge region of the seating component (10), where they are stitched to the front cover (13), in such a way that the seating component merely has the thickness of the front cover (13; 17) in the outer edge region (58) thereof. - Seating component according to claim 7 in conjunction with claim 9,
characterised in that
the fastening interface (15) is merely connected to the front cover (13) in the outer edge region (58) thereof. - Seating component according to any of the preceding claims,
characterised in that
the seating component (10) is in the form of a flat cushion, in particular a backrest (41) having a flat cushion. - Seating component according to any of the preceding claims,
characterised in that
a thin foamed material layer (10) is provided, and is arranged in the inside of the seating component (10) between the front and rear covers (13), preferably between the front cover (13) and the membrane (14). - Seating component according to any of the preceding claims,
characterised in that
at least the membrane (14) has a higher resilience in an inner region (22) of the seating component (10) than in an edge region of the seating component (10). - Seating furnishing (40), in particular an office swivel chair or conference chair,
comprising a seat base (45), a seat support and a seat (43) attached thereon,
comprising a backrest (41) according to any of claims 1 to 13, which has a backrest frame (42) via which the backrest (41) is fastened to the seat support of the seating furnishing (40).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012219241.7A DE102012219241B4 (en) | 2012-10-22 | 2012-10-22 | Seating furniture component and seating |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2721961A1 EP2721961A1 (en) | 2014-04-23 |
EP2721961B1 true EP2721961B1 (en) | 2016-05-11 |
Family
ID=49034002
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13182023.5A Active EP2721961B1 (en) | 2012-10-22 | 2013-08-28 | Seating furniture components and seating furniture |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2721961B1 (en) |
DE (1) | DE102012219241B4 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110584381A (en) * | 2019-09-19 | 2019-12-20 | 杨松 | Detachable bed |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2468558A (en) * | 1945-09-26 | 1949-04-26 | Gustave P Johnson | Tension cushion |
GB939343A (en) * | 1960-02-10 | 1963-10-16 | Slumberland Group Ltd | Synthetic foam materials |
US3264034A (en) * | 1964-03-25 | 1966-08-02 | David E Lawson | Load bearing structure |
US3600035A (en) * | 1968-09-20 | 1971-08-17 | Georges Vondrejs | Autonomous seat for chair |
IT1240965B (en) * | 1990-07-03 | 1993-12-27 | Fiat Auto Spa | STRATIFIED SUPPORT STRUCTURE FOR SEATS, PARTICULARLY FOR CAR SEATS, AND RELATED MANUFACTURING PROCEDURE. |
KR100334315B1 (en) * | 1992-06-15 | 2002-10-11 | 헤르만밀러인코퍼레이티드 | Slope control device for office |
US5775779A (en) * | 1997-03-27 | 1998-07-07 | General Motors Corporation | Polyurethane thermoplastic elastomer membrane for seat suspension |
US5934758A (en) * | 1997-04-30 | 1999-08-10 | Haworth, Inc. | Membrane chair |
DE10121207A1 (en) * | 2001-05-01 | 2002-11-07 | Stoll Sedus Ag | Device for lordosis support |
DE20216302U1 (en) * | 2002-10-22 | 2003-04-17 | Vitra Patente Ag Muttenz | Tilting backrest with elastic covering |
FR2861637B1 (en) * | 2003-11-04 | 2006-04-14 | Oniris | METHOD FOR MAKING SLEEP |
DE102007014152A1 (en) * | 2007-03-23 | 2008-09-25 | Car.I.T.A. Gmbh & Co. Kg | Air conditioning seat- and/or couch support to provide therapeutic effect for patients, has connections permitting formation of light low-pressure, which is produced by pump or blower for transporting of transpired humidity |
DE102009036958A1 (en) * | 2009-08-11 | 2011-02-17 | Interstuhl Büromöbel GmbH & Co. KG | Back rest for office chair, has transverse brackets arranged at back rest frame, and covering unit fixed at transverse brackets using connection units e.g. welts, where length of brackets can be adjusted |
-
2012
- 2012-10-22 DE DE102012219241.7A patent/DE102012219241B4/en active Active
-
2013
- 2013-08-28 EP EP13182023.5A patent/EP2721961B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2721961A1 (en) | 2014-04-23 |
DE102012219241B4 (en) | 2017-11-02 |
DE102012219241A1 (en) | 2014-04-24 |
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