EP4056072B1 - Siège - Google Patents
Siège Download PDFInfo
- Publication number
- EP4056072B1 EP4056072B1 EP21162303.8A EP21162303A EP4056072B1 EP 4056072 B1 EP4056072 B1 EP 4056072B1 EP 21162303 A EP21162303 A EP 21162303A EP 4056072 B1 EP4056072 B1 EP 4056072B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- piece
- seating furniture
- seat surface
- furniture according
- 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.)
- Active
Links
- 210000000689 upper leg Anatomy 0.000 claims description 7
- 239000013013 elastic material Substances 0.000 claims description 6
- 210000002414 leg Anatomy 0.000 description 10
- 230000036544 posture Effects 0.000 description 5
- 230000009194 climbing Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 210000004197 pelvis Anatomy 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000005352 clarification Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 210000004394 hip joint Anatomy 0.000 description 1
- 230000032630 lymph circulation Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions
-
- 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
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/503—Supports for the feet or the legs coupled to fixed parts of the chair with double foot-rests or leg-rests
Definitions
- the invention generally relates to a piece of seating furniture which, due to its shape, brings the occupant into an ergonomically advantageous sitting position.
- the invention relates in particular to a piece of seating furniture having the features of the preamble of claim 1.
- the seating furniture is preferably designed for domestic or professional use. It has a seat and a support frame holding the seat, the seat having a convex seat surface with a median crest line.
- This seating furniture is increasingly used in the private and professional sectors for general support and improvement of a healthy posture and/or relief of areas of the support and movement system.
- the focus is on the spine, the pelvis and the legs, among other things.
- the blood and lymph circulation should also be supported with seating furniture shaped in this way.
- seats designs of seating furniture or seats, hereinafter generally referred to as seats, are known that allow the seated leg position such that the thighs do not have to assume a substantially horizontal position.
- Seats usually have a saddle-like shape and primarily support the pelvis, possibly including the spine. In such seats, the thighs can often assume any position from horizontal to vertical. Actual support of the thighs in such a way that the feet can be lifted off the floor for several minutes or longer is not possible here.
- the width of the seat is chosen so narrow that only the pelvis and spine are supported, but the legs can move freely.
- the seats known from the prior art are used, for example, as a standing aid in order to relieve the strain on the legs when standing for a long time. Often the legs should be able to move while sitting so that they can move the sitter precisely and with little force. The latter are known from body-related service occupations.
- Such a saddle-like seat is, for example, from DE 20 2009 018 688 U1 or the U.S. 2017/0112287 A1 known.
- a disadvantage for domestic or professional use in which a sitting position is assumed for a longer period of time, several hours, is the one-sided sitting position into which the seated person is forced due to the geometry of the seat.
- the fact that such seats have a flexible mount that allows pendulum and/or up and down movements does not change this fact.
- a seat device which also permits such movements of the seat surface.
- the seat is formed by a shaped body which, viewed in cross section, is U-shaped and has a height which almost corresponds to the height of the seat.
- This cylindrical, ending at the top with a hemisphere Shaped body is mounted on a mobile plate.
- Seating furniture that allow rocking movements are, for example, from the U.S. D403517S , the U.S. D411055S and the GB 2343111A known.
- the invention is based on the object of providing a piece of seating furniture with a convex seat surface which enables various, particularly ergonomically advantageous and relaxed sitting postures and at the same time improves the safety of the occupant compared to the prior art.
- the seating furniture should also be usable for children and correspond to their urge to move.
- the seating furniture can be adapted, at least to a limited extent, to the person sitting and/or the respective application. This concerns, for example, the seat height and/or the seat width and/or the seat depth.
- the concept of the seating furniture designed to solve the task is to be described in such a way that the seat surface is enlarged while maintaining the convex shape, which is only partially formed in the prior art, so that lateral movements as well as movements forwards and backwards are possible.
- the convex curvature in contrast to the prior art, remains over the entire depth of the seat, in that the latter is defined by one and the same crest line, which runs in a straight line. Maintaining the convex curvature over the entire depth of the seat can affect not only the type of curvature but also the radius or radii of the curvature.
- radii viewed in the cross section of the seat surface perpendicular to the crest line, can be present, for example, when the curvature, according to an embodiment described in more detail below, increases at least in sections with increasing distance from the crest line.
- a curvature that becomes smaller in sections can also be advantageous.
- Such a seat has a substantially barrel-like shape as a result. This promotes the spread of the legs while sitting and thus maintains or, if necessary, improves the mobility of the hip joints. Depending on the depth of the seat, the shape also allows the person sitting in other sitting positions and changing them, such as sitting on one side parallel legs, placing one or both lower legs in front of or - at least partially - behind. Due to the continuously convex seat surface, the viewing direction can also be changed by turning the body on the seat. These and other changes in sitting posture lead to active and relaxed sitting.
- the size of the seat is determined by the seat depth, ie the distance from the front edge to the rear edge of the seat, and the seat width.
- the seat depth is defined by the length of the crest line of the convex surface of the seat, which preferably runs in a straight line. Since there is no change in curvature along the seat depth, the seat depth is perceived longer. This is because the transition to a concave curve means that the person sitting perceives it as a stop, ie as the end of the surface suitable for sitting.
- the distance is chosen just large enough that the sitter for which the seat is designed to sit comfortably between the two concave bulges. Since these bulges are omitted according to the invention, the seat surface that can be used median is increased.
- a median apex seating surface of the convex surface of the seat has an anterior, dorsal, portion and a posterior, ventral, portion. Since these two areas, as explained below, do not necessarily have to be designed differently in the seating furniture according to the invention or the design can be such that the front and back can be used, the terms front and rear are only used for the respective linguistic distinction.
- DIN EN 1729-1 specifies a seat depth of up to 46 cm and a seat height of up to 51 cm for children up to 207 cm tall.
- a piece of furniture for children can have dimensions of the seat depth and/or seat height which are significantly larger than these dimensions go out.
- the seat depth can, for example, be chosen so large that the person sitting can rest their entire upper body and head on the chair.
- the seat height can be selected or adjusted so that the feet can swing even when sitting in a normal position. The same applies, by analogy, to such seating furniture that is configured for adults.
- recesses that are arranged on the two lateral contours of the seat surface are not taken into account. These recesses are open at the bottom and are at a distance from the front and rear ends of the seat. Such recesses can, particularly in the case of larger seat widths, make it easier to sit down on the piece of furniture, which is to be regarded more as climbing onto the barrel-shaped piece of furniture. Like the rest of the seating furniture, the recesses can be designed as a mirror image of the crest line or alternatively asymmetrically. The latter can be considered, for example, if one-sided climbing or sitting is preferred. The depth of the recesses and their distance from the front and rear ends of the seat must be dimensioned in such a way that an optimal result in terms of safe climbing and sitting as well as active sitting is guaranteed.
- the recesses can optionally be designed to be completely or partially closable with one section of the seat surface per recess, in that the relevant section corresponds to the shape of the recess and can be detachably mounted in the recess.
- the assembly can take place, for example, by means of suitable holding means.
- active sitting behavior is also at least equal to the seat depth by a seat width, the seat width being determined in the projection of the seat surface onto a horizontal plane at half the seat depth.
- the seat of this embodiment can show, at least in sections, the shape of such a part of an ellipse which includes the main apex, the latter coinciding with the crest line of the seat.
- the further section of the cross section running to the lower end of the seat surface can deviate from the elliptical shape while maintaining the convex curvature.
- the seat surface has an elevation at one end, ie at one end of the crest line. This protrudes beyond the horizontal seat and, depending on its height in relation to the seat, can only serve as a stop to give the seated person a tactile indication of the end of the seat, or as a backrest to relieve the spine. Because there is only one elevation, it can be used for the rear as well as for the front end.
- both ends of the seat can also have such an elevation.
- getting on or sitting down can be made easier by an extended seat and/or a rise that protrudes just a few centimeters above the crown line.
- Such an embodiment improves safety when sitting and when moving on the chair, especially for children.
- the transition from the seat surface to the elevation is implemented by a concave curvature, so that the at least one elevation is perceived as pleasant, particularly with regard to active sitting.
- the at least one elevation of the seat can be designed to be displaceable on the seat. Because the elevation can be displaced along the apex line, the usable seat depth can be changed and, for example, the rear elevation can be shifted forward and the seating furniture can be used at a table like a chair with a backrest.
- the seat surface is formed by a plate-shaped support which is bent in such a way that it has the convex curvature.
- the carrier can be designed in one piece or in several pieces. In the case of a multi-part design of the carrier, for example, several plate-shaped carrier sections running parallel to the crest line can be be lined up so that they form approximately the convex curvature.
- the carrier sections can have the same or different widths. They can also be bent. Alternatively, the carrier sections can also be strip-shaped sections lying perpendicular to the crest line and/or freely selectable sections of the carrier. In connection with an elastic material covering the carrier, for example padding, a pleasant surface is created both in the case of a one-part carrier and in the case of a multi-part carrier.
- carrier or the carrier sections can be used for the carrier or the carrier sections.
- wood or metal or plastic are suitable.
- Recycled materials can also be used, such as paper fibers or cardboard.
- the padding of the seat surface by means of a suitable elastic padding material is not of uniform thickness over the entire seat surface. If, according to one embodiment of the chair, the thickness of the padding on the lateral contact surfaces for the thighs is less than in the actual seating area at the apex line and adjacent to this on both sides, climbing onto the chair can be facilitated.
- the seat is adjustable in height.
- the height adjustability can be realized either by the support frame itself.
- the seat can be mounted on the support frame so that it can be adjusted in height.
- the support structure has footrests. These make it easier to climb onto the seating furniture, support active sitting and safe sitting on the relatively large seating area compared to conventional seating furniture, and the variability of the seating furniture.
- the footrests can be mounted on the supporting frame so that they can be adjusted in height.
- the footrests can be designed so long that their length, based on the crest line of the chair, corresponds at least to the depth of the seat. Shorter footrests can be slid parallel to the crown line.
- Such footrests can be implemented, for example, by specifically adjustable footrests or, in comparison, longer footrests.
- the support frame has supports for holding the seat in such a way that the supports are splayed. i.e. starting from the seat, they spread out downwards.
- the spread can run in the direction perpendicular to the crest line or additionally also in the direction of the crest line. In this way, the stability of the seating furniture can be improved, so that even intensive movements by the person sitting are possible with little risk.
- the exemplary embodiment is intended to illustrate the invention only by way of example and not by way of limitation.
- the person skilled in the art would combine the features realized previously in the various configurations of the invention and subsequently in the exemplary embodiment in further embodiments insofar as it seems expedient and sensible to him.
- the chair includes the support frame 4, the 4 supports 30 are arranged at a corner of the chair.
- the two front supports 30 and likewise the two rear supports 30 are each connected to one another by an arc-shaped element 32 . Both arcs of the arcuate elements 32 have the shape that the seat surface 2 is intended to have plus the upholstery 26 .
- Two of the supports 30 are connected to one another by a strut, namely the two front and two rear supports 30 each by a cross strut 34 and two lateral supports 30 each by a longitudinal strut 35, so that a rectangular plan is formed.
- the two longitudinal struts 35 can act as foot elements of the chair, for example.
- further struts for example also cross struts, can be arranged to stabilize the seating furniture item.
- Two footrests 28 are arranged parallel and at a distance above each of the longitudinal struts 35 on the outer sides of the respective two lateral supports 30 . These are plate-shaped, with a much smaller width than length, and extend essentially over the entire length of the chair.
- the two arcuate elements 32 support a wooden plate which has been bent in the same way and serves as a support 24 for the seat 1.
- the carrier 24 has a rectangular shape in plan and essentially determines the seat width 9 and the seat depth 8.
- the carrier 24 has on its two side edges 21, each in the central region, a respective arcuate recess 22 which is symmetrical to the vertex 6 of the seat 2.
- the carrier 24 is fitted with a suitable elastic material 26 ( 2 ) upholstered, the thickness of the elastic material 26 on the bearing surfaces 20 decreasing towards their lower ends.
- the upholstered seat 2 has a convex curvature 16 with its crest line 6 over its entire length, which is the crest line 6 of the seat 2 at the same time. At the rear end of the seat 1, viewed in the direction of view, this merges with a concave curvature 18 into an elevation 14 formed relative to the seat surface. This puts in the position is a low backrest.
- FIG. 2 shows the same furniture as 1 , but in a sectional view immediately in front of the front supports 30.
- the components and features of the seating furniture item that match in both figures are marked with the same reference numbers.
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Claims (12)
- Meuble d'assise, comprenant un siège et un cadre porteur (4) supportant le siège (1), le siège (1) présentant une assise (2) pourvue d'une ligne centrale médiane, l'assise (2) étant réalisée de manière convexe, la ligne centrale représentant la ligne de sommet (6) de la courbure convexe (16), et la ligne de sommet (6) représentant la profondeur d'assise (8) de l'assise (2),
caractérisé en ce que l'assise (2) présente une largeur d'assise (9) telle qu'elle forme dans la partie inférieure, des deux côtés, des surfaces de contact latérales (20) pour une pose au moins partielle des cuisses d'une personne assise, et en ce que les deux surfaces de contact latérales (20) de l'assise (2) présentent respectivement une échancrure (22) ouverte vers le bas qui est espacée par rapport au bord avant et au bord arrière de l'assise (2). - Meuble d'assise selon la revendication 1, caractérisé en ce que la largeur d'assise (9) correspond au moins à une fois la profondeur d'assise (8), la largeur d'assise (9) étant déterminée dans la projection de l'assise (2) sur un plan horizontal dans la moitié de la profondeur d'assise (8).
- Meuble d'assise selon l'une quelconque des revendications précédentes, caractérisé en ce que l'assise (2), vue en section transversale et en direction de la ligne de sommet (6), présente au moins par endroits la forme d'une section d'une ellipse (10) qui comprend le grand axe (12) de l'ellipse (10) mais pas son petit axe, le grand axe (12) croisant la ligne de sommet (6).
- Meuble d'assise selon l'une quelconque des revendications précédentes, caractérisé en ce que l'assise (2) est suivie à une extrémité de la ligne de sommet (2) d'une partie relevée (14) qui constitue le bord de l'assise (2) de ce côté.
- Meuble d'assise selon la revendication 4, caractérisé en ce que l'assise (2) passe à la partie relevée (14) par l'intermédiaire d'une courbure concave (18) .
- Meuble d'assise selon la revendication 4 ou 5, caractérisé en ce que la partie relevée (14) peut être décalé sur l'assise (2) en direction de la ligne de sommet (6).
- Meuble d'assise selon l'une quelconque des revendications précédentes, caractérisé en ce que l'échancrure (22) peut être fermée au moins partiellement par une section de l'assise (2) correspondant à l'échancrure (22) et pouvant être montée de manière amovible.
- Meuble d'assise selon l'une quelconque des revendications précédentes, caractérisé en ce que l'assise (2) est réalisée par un support (24) courbe en forme de plaque en une ou plusieurs parties qui est rembourré avec un matériau élastique (26) pour réaliser l'assise (2).
- Meuble d'assise selon la revendication 8, caractérisé en ce que l'épaisseur du matériau élastique (26) aux surfaces de contact latérales (20) est inférieure à celle au niveau de la ligne de sommet (6).
- Meuble d'assise selon l'une quelconque des revendications précédentes, caractérisé en ce que le siège (1) est réglable en hauteur.
- Meuble d'assise selon l'une quelconque des revendications précédentes, caractérisé en ce que le cadre porteur (4) présente des repose-pieds (28), les repose-pieds (28) présentant au moins l'une des particularités suivantes : les repose-pieds (28) sont montés sur le cadre porteur (4) de manière réglable en hauteur, la longueur des repose-pieds (28) correspond au moins à la profondeur d'assise (8), et les repose-pieds (28) sont parallèles à la ligne de sommet (6).
- Meuble d'assise selon l'une quelconque des revendications précédentes, caractérisé en ce que le cadre porteur (4) présente des supports (30) pour supporter le siège (1), dans lequel les supports (30), vus de haut en bas, s'étendent en s'écartant vers l'extérieur.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK21162303.8T DK4056072T3 (da) | 2021-03-12 | 2021-03-12 | Siddemøbel |
EP21162303.8A EP4056072B1 (fr) | 2021-03-12 | 2021-03-12 | Siège |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP21162303.8A EP4056072B1 (fr) | 2021-03-12 | 2021-03-12 | Siège |
Publications (2)
Publication Number | Publication Date |
---|---|
EP4056072A1 EP4056072A1 (fr) | 2022-09-14 |
EP4056072B1 true EP4056072B1 (fr) | 2023-03-29 |
Family
ID=74873575
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21162303.8A Active EP4056072B1 (fr) | 2021-03-12 | 2021-03-12 | Siège |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4056072B1 (fr) |
DK (1) | DK4056072T3 (fr) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH472868A (de) * | 1967-08-31 | 1969-05-31 | Holzaepfel Kg Moebel Christian | Sitzmöbel |
USD403517S (en) * | 1998-03-05 | 1999-01-05 | Haworth, Inc. | Rocking stool |
GB2343111A (en) * | 1998-10-27 | 2000-05-03 | Julian Romanczuk | Kneeling chair |
USD411055S (en) * | 1998-10-30 | 1999-06-15 | Haworth, Inc. | Rocking stool |
DE202009018688U1 (de) | 2009-11-14 | 2012-11-27 | Institut für Prävention und Nachsorge GmbH | Sitzanordnung für Trainingsgeräte, aufweisend mindestens einen Sitzbereich |
DE102010036226B4 (de) | 2010-08-30 | 2013-12-12 | Dietrich Maier | Aktivdynamische Sitzeinrichtung |
US10165862B2 (en) * | 2011-10-31 | 2019-01-01 | Johann Burkhard Schmitz | Support structure for saddle-form seat surface |
-
2021
- 2021-03-12 EP EP21162303.8A patent/EP4056072B1/fr active Active
- 2021-03-12 DK DK21162303.8T patent/DK4056072T3/da active
Also Published As
Publication number | Publication date |
---|---|
DK4056072T3 (da) | 2023-06-19 |
EP4056072A1 (fr) | 2022-09-14 |
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