EP3516991B1 - Siège dynamique actif - Google Patents
Siège dynamique actif Download PDFInfo
- Publication number
- EP3516991B1 EP3516991B1 EP19160568.2A EP19160568A EP3516991B1 EP 3516991 B1 EP3516991 B1 EP 3516991B1 EP 19160568 A EP19160568 A EP 19160568A EP 3516991 B1 EP3516991 B1 EP 3516991B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seating furniture
- active
- bracket
- dynamic seating
- supporting frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000007246 mechanism Effects 0.000 claims description 36
- 230000033001 locomotion Effects 0.000 claims description 19
- 125000006850 spacer group Chemical group 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 5
- 230000037396 body weight Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000000034 method Methods 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
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/02—Rocking chairs
- A47C3/021—Rocking chairs having elastic frames
- A47C3/023—Rocking chairs having elastic frames made of tubular material
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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
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/02—Rocking chairs
- A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
- A47C3/0252—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame connected only by an elastic member positioned between seat and base frame
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
- A47C3/12—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/02—Seat parts
- A47C7/14—Seat parts of adjustable shape; elastically mounted ; adaptable to a user contour or ergonomic seating positions
Definitions
- the invention relates to an active dynamic seating furniture with a seat part with a seat and a resilient rocking mechanism arranged on a support frame.
- Forwards and backwards tiltable or movable seat devices and chairs are e.g. B. already known in the area of standing up aids and have the usual design, electrically assisted elements such as servomotors, gas pressure cylinders, Springs or other lifting devices. These are controlled by the user or another person and support the user of the furniture by reducing the exertion of force and self-movement when leaving the sitting position.
- electrically assisted elements such as servomotors, gas pressure cylinders, Springs or other lifting devices.
- a chair with a seat and a backrest, as well as with a base frame which supports the seat surface and the backrest, the seat surface being tiltable relative to the base frame about a lying tilt axis, and the backrest being two movable and arranged one above the other Has areas whose upper area can be angled relative to the lower area about a likewise lying tilt axis.
- this solution serves the different adjustability of the tilting movement of the seat surface and the backrest, so that, in particular depending on the body weight of the user, the tilting movement of the seat surface and the tilting movement of the backrest areas are possible, the actuation forces for the tilting movements of the seat surface and the backrest being made possible .
- the proposed tilting and adjusting mechanism is, however, complex and complex, which leads to high costs for such a chair.
- the invention further aims at a movement pattern that most closely corresponds to dynamic sitting in terms of physiognomy.
- the invention is therefore based on the object to solve the aforementioned tasks and to provide a chair with a rocking mechanism, which has the further features of being aesthetically pleasing, simple and inexpensive to manufacture and also sufficient stability for seat users with a higher body weight at the Ensures movement.
- a basic idea of the invention is to provide an elastically resilient rocking mechanism on which a seat part is fastened in order to enable active dynamic movements of the seat user.
- the rocking mechanism according to the invention is formed from oppositely arranged, preferably crossing lever arms, by means of which a rocking movement can take place with the seat part forwards and backwards and preferably also laterally.
- seating furniture according to claim 1 is provided for this purpose.
- the resilient rocker mechanism forms a first bracket comprising at least one lever arm, which is each connected to a rear part of the support frame and a second bracket with at least one lever arm, which is or are respectively connected to a front part of the support frame, the lever arm or arms of the first bracket essentially extending in a forward direction (obliquely upward), while the lever arm or arms of the second bracket extend in extend a substantially rearward direction (obliquely upward).
- the seat part (or the underside of the seat part) is held on the resilient rocking mechanism in such a way that the seat surface is deflected from an initial position into a deflected position that is tilted forwards and backwards, against the spring force of elastic ones Elements can be operated.
- rocking forward the front edge of the seat part is moved downwards, while the rear edge of the seat part remains in its relative height or is moved upwards, so that a backrest connected to the seat part tilts forward.
- the rear edge of the seat part is moved downwards, while the rear edge of the seat part remains in its relative height or is moved downwards, so that a backrest connected to the seat part tilts backwards.
- the elastic elements to which the lever arms are attached are elastically deformed.
- elastically deformable disks or elastic spacing elements are preferably attached to the brackets or the lever arms at the connecting positions with the seat part and more preferably at the connecting positions with a carrying frame or a carrier.
- the elastic elements can also be formed from several separate elastic elements, which are arranged in a suitable arrangement one above the other at the fastening points or connection positions to the chair part and support frame are attached.
- the lever arms are advantageously "sandwich-like" surrounded by at least two elastically deformable elements. It is also advantageous if the prestressing or the elasticity and / or spring property of the elastically deformable elements can be set by means of an actuating device or adjusting device, so that this has a direct effect on the movement characteristics of the rocking movement.
- a configuration is particularly suitable in which fastening points are preferably provided on the first and second bracket, respectively mounted on or with elastic spacers, to which the seat part is fastened.
- At least one of the brackets has two lever arms and the two lever arms of this bracket are connected to one another in a U-shape by a connecting arm.
- both brackets each have two lever arms and these are connected to one another in a U-shape by a connecting arm.
- one bracket projects through the U-shaped opening of the other bracket at an angle, so that the lever arms of the bracket cross each other.
- the further bracket has a holding section consisting of two holding arms with which the bracket is connected in each case to the front part of the support frame and a lever arm extends away from the holding section, essentially obliquely upwards in one direction extends to the rear.
- the support frame has four chair legs which run obliquely from bottom to top (preferably form a pyramid shape) and the brackets at the upper ends of the chair legs of the chair legs are connected directly or indirectly to them.
- a direct connection can e.g. B. by a head plate connecting the upper chair leg ends or H-shaped connecting structure from which mounting bolts or connecting elements are attached to or with which the respective brackets are fastened to their holding sections.
- one bracket protrudes upwards at an angle and the other bracket upwards at an angle, and the lever arms of the two brackets cross between them.
- the two brackets with their respective holding sections are fastened indirectly to the support frame in the region of the chair leg ends via elastically deformable bearings on connecting means, preferably using elastically deformable spacers that the elastic properties for the rocking mobility take place at least partially or predominantly from the elastic deformability of the elastic spacers or elastically deformable spacer elements.
- a lower, elastically deformable support and an upper, elastically deformable clamping disk are preferably provided at the respective fastening points, between which the holding section of the respective bracket is clamped, that is to say clamped "sandwich-like", so to speak.
- the fastening points for fastening the seat part are also designed in a comparable manner.
- An end-side section of the respective bracket is clamped between an elastically deformable spacer element on the seat part side and an elastically deformable clamping disk, and also “sandwich-like”.
- the support frame and the seesaw mechanism are formed in one piece, preferably formed from a tubular material.
- the tubular frame thus obtained also has two U-shaped brackets. At the cross connections of the u-shaped bracket, the seat part is fastened via, as described above, elastically deformable bearing elements.
- FIG Figure 1 A first exemplary embodiment of a perspective view of a rocking mechanism 20 of a chair according to the invention is shown in FIG Figure 2 a side view of an alternative rocker mechanism 20.
- the seesaw mechanism 20 is designed to be arranged or integrated on a support frame 10, as is shown in FIG Figure 1 is shown.
- a support frame 10 which supports the seat surface 2
- the support frame 10 being designed with a resilient rocking mechanism 20.
- the seat surface 2 or the entire seat with the seat surface 2 is mounted on the support frame 10 such that it can be tilted in a spring-movable manner without the need for a pendulum column.
- the resilient rocking mechanism 20 comprises a first bracket 21 consisting of two lever arms 21a, 21b, each of which is connected to a rear part 10h of the support frame 10.
- the rocking mechanism 20 has a second bracket 22 with a lever arm 22a, which is connected to a front part 10v of the support frame 10.
- the two lever arms 21a, 21b of the first bracket 21 essentially extend in a forward direction, while the lever arm 22a (or in the embodiment according to Fig. 6 two lever arms 22a, 22b) of the second bracket 22 extend in a substantially rearward or opposite direction.
- the term “rear” in the sense of the present invention means the area in relation to the chair on which the backrest or the rear legs of the chair are located, while “front” defines the area on the chair correspondingly opposite, as is also the case the figures emerges.
- the active dynamic chair 1 is preferably designed in such a way that the seat surface 2 on the resilient rocking mechanism 20 is held in a spring-movable manner via the elastically deformable spacers 25 so that the seat surface 2 moves from a starting position to a deflected position tilted forwards and backwards against the spring force the elastically deformable spacers 25 can be operated.
- FIG. 6 An alternative exemplary embodiment of a perspective view of a rocker mechanism 20 is shown, in which the two lever arms 22a, 22b of the second bracket 22 are also connected by a connecting arm 22c, so that the bracket 22 is also U-shaped.
- the second bracket 22 has a holding section 23, consisting of two holding arms 23a, 23b, with which the bracket 22 is connected to the front part 10v of the support frame 10 and a lever arm 22a away from the holding section 23, obliquely upward in one direction in Essentially extends towards the rear part 10h.
- Fastening points 24 are formed on the first and second brackets 21, 22 with elastically deformable spacer disks 25, to which the seat part 2 is attached on the one hand and which on the other hand produce the connections of the lever arms of the brackets 21, 22.
- the brackets 21, 22 can be formed in one piece or, alternatively, in several pieces (eg composed of three individual lever arms).
- the support frame 10 in the shown embodiments has four chair legs 4 which run obliquely towards one another from bottom to top.
- the brackets 21, 22 are connected to the upper chair leg ends 4a of the chair legs 4 indirectly via chair leg connections 5.
- FIG. 5 An alternative solution is shown, in which the rocking mechanism 20 is mounted on a central chair column 6, to which an otherwise known base 7 with rollers 8 is connected.
- the legs 4 of the star base 7 also run obliquely, as in the example Figure 4 .
- the chair leg connections 5 are an integral part of the bracket 20.
- the two brackets 21, 22 are fastened with their respective holding sections indirectly to the support frame 2 in the region of the chair leg ends 4a via connecting means 26 and using elastic spacers 25.
- the support frame 2 after Figure 2 is also connected to four chair legs 4 which run obliquely towards one another from bottom to top and are connected to one another at the upper ends of the chair legs 4a by means of a connecting plate 50.
- the four chair leg connections 5 are formed directly in one piece on the connecting plate 50.
- the chair leg connections 5 are designed as cylindrical tubular elements, in the open end of which the chair leg ends 4a of the chair legs 4 are inserted and fastened. A particularly simple assembly can be achieved by a press fit, so that no mechanical connecting materials are required. Additionally or alternatively, an adhesive process can be used to create a mechanical connection between the chair legs 4 and the chair leg connections 5.
- FIG. 7 and 8th A further alternative exemplary embodiment of the invention is shown, in which the support frame 2 and the rocking mechanism 20 are integrally formed from a tubular material.
- the inventive concept is also realized by the two spring clips 21, 22, which in this embodiment also intersect in an x-shape Arrangement are designed.
Landscapes
- Chairs Characterized By Structure (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Claims (13)
- Siège dynamique actif (1) avec une assise avec une surface d'assise (2) d'un siège et un mécanisme de basculement (20) élastique agencé sur un cadre porteur (10) pour l'assise pour la réalisation de mouvements avec l'assise par rapport au cadre porteur (10), dans lequel l'assise est logée pivotante de manière élastiquement mobile au niveau du cadre porteur (10), dans lequel le mécanisme de basculement (20) élastique forme un premier étrier (21) comprenant au moins un bras de levier (21a, 21b), qui peut être relié respectivement à une partie arrière (10h) du cadre porteur (10) ainsi qu'un deuxième étrier (22) avec au moins un bras de levier (22a, 22b), qui peut être relié respectivement à une partie avant (10v) du cadre porteur (10), dans lequel l'assise est fixée au moyen de paliers élastiquement déformables (25) au niveau des étriers (21, 22) et dans lequel l'assise est fixée au niveau du mécanisme de basculement (20) par le biais des paliers élastiquement déformables (25).
- Siège dynamique actif (1) avec un mécanisme de basculement (20) élastique selon la revendication 1, dans lequel le ou les bras de levier (21a, 21b) du premier étrier (21) s'étendent sensiblement dans une direction dirigée vers l'avant, pendant que le ou les bras de levier (22a, 22b) du deuxième étrier (22) s'étendent dans une direction dirigée sensiblement vers l'arrière et se croisent ce faisant.
- Siège dynamique actif (1) avec un mécanisme de basculement (20) élastique selon la revendication 1 ou 2, caractérisé en ce que l'assise avec la surface d'assise (2) est retenue au niveau du mécanisme de basculement (20) élastique de sorte que la surface d'assise (2) puisse être actionnée d'une position de départ aussi bien dans une position déviée pivotée vers l'avant que vers l'arrière contre la force de ressort des paliers élastiquement déformables (25).
- Siège dynamique actif (1) avec un mécanisme de basculement (20) élastique selon la revendication 1, 2 ou 3, caractérisé en ce qu'au moins un des étriers (21, 22) possède deux bras de levier (21a, 21b ou 22a, 22b) et les deux bras de levier de cet étrier (21, 22) sont reliés l'un à l'autre en forme de U par un bras de liaison (21c).
- Siège dynamique actif (1) avec un mécanisme de basculement (20) élastique selon l'une quelconque des revendications précédentes, caractérisé en ce que les deux étriers (21, 22) possèdent deux bras de levier (21a, 21b ou 22a, 22b) et les respectivement deux bras de levier de l'étrier (21, 22) respectif sont reliés l'un à l'autre en forme de U par respectivement un bras de liaison (21c, 22c).
- Siège dynamique actif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'autre étrier (22) possède une section de retenue (23) constituée de deux bras de retenue (23a, 23b) avec lesquels l'étrier (22) est relié respectivement à la partie avant (10v) du cadre porteur (10) et un bras de levier (22a) s'étend à l'opposé de la section de retenue (23), en biais vers le haut dans une direction sensiblement vers la partie arrière (10h).
- Siège dynamique actif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que des points de fixation (24) sont prévus au niveau du premier et deuxième étrier (21, 22) avec des disques d'écartement élastiquement déformables (25), au niveau desquels l'assise (2) est fixée.
- Siège dynamique actif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le cadre porteur (2) présente quatre pieds de chaise (4) qui s'étendent l'un vers l'autre en biais du bas vers le haut et les étriers (21, 22) sont reliés au niveau des extrémités de pied de chaise supérieures (4a) des pieds de chaise (4) indirectement par le biais de paliers élastiquement déformables (25) à celles-ci.
- Siège dynamique actif (1) selon la revendication 8, caractérisé en ce que les étriers (21, 22) avec leurs sections de retenue respectives sont fixés indirectement par le biais de moyens de liaison (26) et en utilisant des disques d'écartement élastiquement déformables (25) au niveau du cadre porteur (2) respectivement dans la zone des extrémités de pied de chaise (4a).
- Siège dynamique actif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le cadre porteur (2) présente quatre pieds de chaise (4) qui s'étendent l'un vers l'autre en biais du bas vers le haut et sont reliés l'un à l'autre au niveau des extrémités de pied de chaise supérieures (4a) au moyen d'une plaque de liaison (50).
- Siège dynamique actif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les bras de levier bras de levier (21a, 21b ou 22a, 22b) des deux étriers (21, 22) se croisent à peu près en forme de X vu du côté chaise.
- Siège dynamique actif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que le cadre porteur (2) et le mécanisme de basculement (20) sont réalisés d'un seul tenant, de préférence formés à partir d'un matériau tubulaire.
- Siège dynamique actif (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que l'élasticité et/ou la propriété élastique des paliers élastiquement déformables (25) peut être modifiée au moyen d'un mécanisme de réglage.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017103651.2A DE102017103651A1 (de) | 2017-02-22 | 2017-02-22 | Aktivdynamisches Sitzmöbel |
EP17201475.5A EP3366161B1 (fr) | 2017-02-22 | 2017-11-14 | Siège dynamique actif |
Related Parent Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17201475.5A Division-Into EP3366161B1 (fr) | 2017-02-22 | 2017-11-14 | Siège dynamique actif |
EP17201475.5A Division EP3366161B1 (fr) | 2017-02-22 | 2017-11-14 | Siège dynamique actif |
EP17201475.5A Previously-Filed-Application EP3366161B1 (fr) | 2017-02-22 | 2017-11-14 | Siège dynamique actif |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3516991A1 EP3516991A1 (fr) | 2019-07-31 |
EP3516991B1 true EP3516991B1 (fr) | 2020-07-08 |
Family
ID=60320760
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19160568.2A Active EP3516991B1 (fr) | 2017-02-22 | 2017-11-14 | Siège dynamique actif |
EP17201475.5A Active EP3366161B1 (fr) | 2017-02-22 | 2017-11-14 | Siège dynamique actif |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17201475.5A Active EP3366161B1 (fr) | 2017-02-22 | 2017-11-14 | Siège dynamique actif |
Country Status (4)
Country | Link |
---|---|
US (1) | US10531739B2 (fr) |
EP (2) | EP3516991B1 (fr) |
DE (1) | DE102017103651A1 (fr) |
DK (1) | DK3366161T3 (fr) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD915096S1 (en) * | 2019-12-05 | 2021-04-06 | 39F Usa Inc | Chair |
US11197548B2 (en) * | 2019-12-16 | 2021-12-14 | Allseating Corporation | Reclining control system for a chair |
DE102020103226A1 (de) * | 2020-02-07 | 2021-08-12 | Aeris Gmbh | Zweigeteilter Sitz |
WO2021257958A1 (fr) | 2020-06-19 | 2021-12-23 | Dick's Sporting Goods, Inc. | Chaise pliable avec capacités d'inclinaison et de pivotement |
WO2024077008A1 (fr) * | 2022-10-06 | 2024-04-11 | Gci Outdoor Llc | Chaise basculante compacte pouvant être rangée |
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US2132291A (en) * | 1938-02-04 | 1938-10-04 | Fitos Miklos | Spring seat |
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US2529613A (en) * | 1946-05-08 | 1950-11-14 | Tipton Furniture Company Inc | Rocker suspension |
DK76195C (da) * | 1949-10-31 | 1953-08-03 | Hermann Papst | Fjedrende sædeunderstøtning. |
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CA2471915C (fr) * | 2003-06-23 | 2009-08-04 | Allseating Corporation | Virole reglable pour siege de fauteuil |
DE202006005403U1 (de) | 2006-03-31 | 2006-06-08 | Bacher-Tische M. + W. Bacher Gmbh | Sitzmöbel |
DE202008011303U1 (de) * | 2008-08-25 | 2008-10-30 | Design Ballendat Gmbh | Stuhl mit gefedert gelagertem Sitzelement |
DE102009041775A1 (de) | 2009-09-15 | 2011-03-24 | Egon Tietz | Verbindungssystem |
DE202011000805U1 (de) | 2011-04-06 | 2011-09-05 | hülsta-werke Hüls GmbH & Co KG | Stuhl mit kipp- und torsionsbeweglicher Sitzfläche |
US20140252823A1 (en) * | 2013-03-08 | 2014-09-11 | William Risdall | Multi-directional body motion stack chair |
DE202016100404U1 (de) | 2016-01-28 | 2016-02-10 | Harvest-Excel International Pte. Ltd. | Umfallsicherer gepufferter Aufbau eines Stuhls |
USD821791S1 (en) * | 2017-05-19 | 2018-07-03 | Steelcase Inc. | Chair |
-
2017
- 2017-02-22 DE DE102017103651.2A patent/DE102017103651A1/de active Pending
- 2017-11-14 EP EP19160568.2A patent/EP3516991B1/fr active Active
- 2017-11-14 DK DK17201475.5T patent/DK3366161T3/da active
- 2017-11-14 EP EP17201475.5A patent/EP3366161B1/fr active Active
- 2017-12-11 US US15/837,316 patent/US10531739B2/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP3366161B1 (fr) | 2019-09-18 |
DK3366161T3 (da) | 2019-12-16 |
DE102017103651A1 (de) | 2018-08-23 |
EP3516991A1 (fr) | 2019-07-31 |
US20180235367A1 (en) | 2018-08-23 |
EP3366161A1 (fr) | 2018-08-29 |
US10531739B2 (en) | 2020-01-14 |
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