EP3749143A1 - Siège - Google Patents

Siège

Info

Publication number
EP3749143A1
EP3749143A1 EP19703712.0A EP19703712A EP3749143A1 EP 3749143 A1 EP3749143 A1 EP 3749143A1 EP 19703712 A EP19703712 A EP 19703712A EP 3749143 A1 EP3749143 A1 EP 3749143A1
Authority
EP
European Patent Office
Prior art keywords
seat
seating
seating furniture
foam
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.)
Pending
Application number
EP19703712.0A
Other languages
German (de)
English (en)
Inventor
Hans-Christian Toni Hackmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GbR Mit Hans Christian Toni Hackmann & Raphael Schneider
Kubivent Sitz und Liegepolster GmbH
Original Assignee
GbR Mit Hans Christian Toni Hackmann & Raphael Schneider
Kubivent Sitz und Liegepolster GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by GbR Mit Hans Christian Toni Hackmann & Raphael Schneider, Kubivent Sitz und Liegepolster GmbH filed Critical GbR Mit Hans Christian Toni Hackmann & Raphael Schneider
Publication of EP3749143A1 publication Critical patent/EP3749143A1/fr
Pending legal-status Critical Current

Links

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
    • A47C3/16—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats of legless type, e.g. with seat directly resting on the floor; Hassocks; Pouffes
    • 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
    • A47C27/00—Spring, stuffed or fluid mattresses or cushions specially adapted for chairs, beds or sofas
    • A47C27/08—Fluid mattresses or cushions
    • A47C27/086—Fluid mattresses or cushions with fluid-like particles, e.g. filled with beads
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C5/00—Chairs of special materials
    • A47C5/12—Chairs of special materials of plastics, with or without reinforcement
    • A47C5/125—Chairs of special materials of plastics, with or without reinforcement completely made of foam material
    • 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

Definitions

  • the invention relates to a chair comprising at least one seat in the manner of a seat or in the manner of a stool and at least one seat cushion.
  • Seating so for example, chairs, benches, stools or armchairs or sofas are already known with a variety of forms and designs.
  • different aspects may be in the foreground, depending on which area of life (for example, living, working and other) and accordingly for what use the corresponding seating is provided.
  • the present invention seeks to adopt an evolutionary approach to the design and design of a chair, i. an approach that takes into account the evolution of man. In other words, which attitudes and sitting positions of the person actually correspond to the physical needs of the person? Which seating positions are "appropriate” and healthy?
  • the invention has the object to create a seating that corresponds to the natural needs of man, based on its evolutionary development, in a special way.
  • this seating furniture the user should be able to assume various human-friendly and healthy sitting positions.
  • the new seating furniture should be versatile and not only allow a static, but also a dynamic use of the chair.
  • the new seating should be able to adapt to different environments and areas of life, so that the user in any of his / her areas of life on the seating must be without.
  • the new seating furniture according to the invention comprises at least one seat in the manner of a seating platform or in the manner of a stool and at least one seat cushion.
  • the Seating a hard core and a (compared to the core) soft outer layer, wherein the core is preferably made of at least one hard foam plastic and the outer layer is preferably made of at least one flexible foam plastic.
  • the seat cushion according to the invention has a filling of microspheres of hard foam plastic with a diameter of less than 2 mm.
  • seat platform is to mean according to the invention that the seat can also be described as a seat provided for sitting on which the user of the seat can take a (random) sitting position.
  • seat stool used in the invention.
  • a stool is known to be a simple seating, usually without back, on which the user can also take a (random) sitting position.
  • seat cushion comprises all cushions with a generally bag-like shell, preferably made of a material which is filled with the microspheres of rigid foam plastic according to claim 1.
  • the cushion provided according to the invention serves, as will be described below, to support the sitting position on the platform-like or stool-like seating facility.
  • core and outer layer of the seat preferably made of foam plastics (in short: foams).
  • foam plastics in short: foams.
  • a foam (foamed plastic) is known to be a material consisting of a solid plastic and a gas dispersed therein.
  • Rigid foam plastics are foams which provide relatively high resistance to deformation under pressure. This is due, among other things, to the fact that rigid foams are predominantly closed-celled. By contrast, the softer foam plastics which are softer than hard foam plastics have an open-cell structure.
  • the hard foam plastic used is in particular a polyurethane (PUR / PIR) foam or a polystyrene (PS) foam.
  • PUR / PIR foam is known to be formed by polyaddition of isocyanates with polyether or polyester polyols. A distinction is made between linear and cross-linked PUR foam. In the production of PIR foam, a higher isocyanate content is used as a raw material compared to the PUR foam. The corresponding differences are readily known to the person skilled in the art (chemist).
  • Polystyrene (PS) foam is a plastic obtainable by polymerization of styrene, which is foamed with different production processes to form different polystyrene rigid foams.
  • EPS hard foam is preferably used.
  • This expanded polystyrene foam is u. a. foamed with steam.
  • the flexible foam plastic used according to the invention is preferably a polyurethane (PUR) foam.
  • PUR polyurethane
  • the flexible foam plastic is a polyurethane (PUR) composite foam.
  • Such composite foams usually consist of cut residues of the soft polyurethane foam production and of at least one binder. These materials are also known to those skilled readily.
  • various parameters such as density (also called density) or compressive strength can be used.
  • density also called density
  • compressive strength can be used.
  • density density
  • compressive strength is given in kg / m 3 and indicates the weight of a foam block with an edge length of 1 m.
  • the compression hardness is given in kPa. It expresses how much pressure must be applied to a foam to compress it to a certain percentage of its initial height.
  • the core of the seat is made of a polystyrene (PS) foam having a density between 10 and 35 kg / m 3 and / or a compression stress at 10% compression of> 30 kPa.
  • PS polystyrene
  • Even harder preferred variants of such polystyrene foams can have compressive stresses at 10% compression of> 90 kPa, in particular of> 150 kPa.
  • the outer layer of the seat consists of a polyurethane (PUR) foam which has a compressive strength (at 40%)> 15 kPa.
  • the compression hardness (at 40%) is between 15 and 40 kPa.
  • the intended filling of the seat cushion of hard foam plastic microspheres with a diameter of less than 2 mm ensures the dimensional stability of the seat cushion, especially with weight load.
  • the intended small beads can not roll away, so that the occupied by the user seating position is largely maintained.
  • the microspheres of the filling of the seat cushion have a diameter of less than 1, 5 mm.
  • the diameter of the microspheres is in particular between 0.5 mm and 1.5 mm.
  • the microspheres of the filling of the seat cushion consist in particular of EPS rigid foam plastic (see above explanation).
  • the seat provided in the new seating basically have any podium-like or stool-like shape.
  • this shape of the seat and thus also the overall design of the chair, can be adapted to the environment for which the chair is intended.
  • the size of the seating is basically not limited in the invention.
  • the seat may be intended for use by a person, be it a child or adult, or for use by at least two persons, for example a group of persons.
  • very different cross-sectional areas such as round, oval or square cross-sectional areas can be selected.
  • the seat has at least one plane surface (optionally also with a slight inclination). This surface is then intended as a seat for the user.
  • a further flat surface facing away from the first planar surface is preferably provided, with which the seating can then be deposited on the floor. This will be explained in more detail in connection with the drawings.
  • the seating according to the invention has a seat with a hard core and a (in comparison to the core) soft or softer outer layer.
  • the (harder) core serves on the one hand to give the seating the necessary stability.
  • the core ensures that the user of the chair does not sink (too far) into the seat when taking a seat position.
  • the (softer) outer layer serves to increase the sitting comfort for the user.
  • the outer layer thus ensures that the user does not have to sit (exclusively) on the hard core.
  • the described functions of (harder) core and (softer) outer layer can be used even further in preferred embodiments of the invention by the fact that the provided on the seat (and usable as a seat) surfaces of the outer layer have different strengths.
  • the outer layer is not the same everywhere soft, but has different strengths / degrees of hardness (which are of course still softer compared to the core). In this way, it is possible for the user to select a different soft seat and thus seating position.
  • the different strengths of the soft outer layer for a different seating comfort can be achieved either by the use of different soft foam plastics for the corresponding surfaces of the outer layer or by different thicknesses of the same flexible foam plastic for different surfaces of the outer layer.
  • the seating of the seat has the shape of a polyhedron.
  • a polyhedron is known to be a body bounded exclusively by straight surfaces (planes). These straight surfaces (planes) can then be provided in the invention at least partially as a seat for the user.
  • the seating in the invention has the shape of a cuboid or a cube.
  • the flat surfaces can be particularly easily arranged horizontally and accordingly use as a seat.
  • the dimensions (edge lengths) a, b, c of the cuboid are between 50 and 130 cm (a), between 50 and 90 cm (b) and between 20 and 50 cm (c). Assigning the cuboid seat so that the dimension c can be considered as the height of the seat, so can be with the appropriate dimensions between 20 and 50 cm comfortable seating positions for all users, from the child to the (large) adult realize. This aspect is also discussed in connection with the drawings.
  • a cuboid seat preferred dimensions are 90 cm (a), 70 cm (b) and 40 cm (c), or 60 cm (a), 60 cm (b) and 40 cm (c).
  • the core of the seat occupies a comparatively large space within the seat itself.
  • the volume of the core should not be too small relative to the (total) volume of the seat. This is due to the fact that the (hard) core of the seat overall gives the necessary stability. Accordingly, it is preferred according to the invention if the volume of the core is between 40% and 95% of the volume of the seat. Within this range, a volume fraction of the core between 60% and 90%, in particular between 75% and 85%, (based in each case on the total volume of the seat) is more preferred.
  • the seat according to the invention may comprise a shell or a cover that completely envelops the seating.
  • This cover protects the seat, and in particular the outer layer arranged outside, against damage and / or contamination.
  • the usually made of a fabric cover may be firmly attached or removable, for example by means of a zipper. In the latter case, the cover can then be cleaned or washed and put back on the seat.
  • the seat cushion may have a round or an oval cross-sectional area, that is to say a shape which is basically known from so-called yoga cushions.
  • the diameter of the seat cushion in particular of the seat cushion with a round or oval cross-sectional area, is between 20 and 40 cm, preferably between 30 and 35 cm.
  • the seat cushion may in particular have a height between 10 and 20 cm.
  • the filling of the microsphere seat cushion is usually within a sheath which serves as a sub-cover.
  • a decorative cover that can be arranged around the sub-cover can be provided, which can also be designed to be removable.
  • This decorative cover may optionally consist of the same material as the (outer) reference of seating. Also a vote in relation to the design of the two covers is possible.
  • the seating according to the invention may additionally comprise a wedge-shaped part for resting on the seat.
  • This part serves primarily as a heel wedge to support the feet while taking a squatting sitting position on the seat. This will be explained below.
  • the wedge-shaped part preferably consists of a hard foam plastic, wherein reference is made to the above explanations of this material.
  • the invention comprises the seating described in the manner of a seat or in the manner of a stool.
  • This is characterized in that it comprises a hard core, preferably of at least one hard foam plastic, and a soft outer layer, preferably of at least one flexible foam plastic.
  • the invention comprises the described seat cushion. This is characterized in that it has a filling of microspheres of hard foam plastic with a diameter of less than 2 mm.
  • the seating according to the invention with its combination of the described seat opportunity and the seat cushion described is associated with a whole series of advantages. These advantages are at least partially even with the two components of the chair alone to fruition.
  • the (harder) core of the seating ensures, on the one hand, that the seat has sufficient stability, inter alia, against deformation when in use.
  • the core ensures a comparatively hard and thus stable support surface for the user, who supports it in his chosen seating position.
  • the (softer) outer layer provides the user with improved seating comfort, which he would not have when sitting on a seat directly on the core.
  • the combination of core and outer layer is therefore an essential part of a healthy sitting on the seat.
  • the seat cushion with its stabilizing filling of microspheres supports and supports the seating position selected by the user on the seat also contribute to the aspired healthy sitting. This support is needed especially for users who can not or will not take certain seating positions on the seat over a longer period of time.
  • the sitting positions of the deep squat, the heel seat, the cross-legged seat and the Grätschsitz are particularly healthy for humans. These four basic positions can be taken with the seating furniture according to the invention as follows:
  • the user squats on the seat.
  • both feet are placed approximately hip-width on a substantially flat and horizontally arranged surface of the seat.
  • the heels should touch the seat.
  • the buttocks are lowered as deeply as possible, the upper body remains as upright as possible.
  • a heel wedge can be placed under it.
  • the seat cushion can be used to support this squat, which can be placed for example under the buttocks between the legs and thus significantly facilitates the sitting position of the deep squat.
  • the user In this sitting position, the user first goes to the knee on a flat, horizontally arranged surface. Then the buttocks are lowered to their heels. The backs of the feet are on the seat, as are the lower legs.
  • the seat cushion can also be placed under the buttocks to achieve a more comfortable seating position for the user.
  • the seat cushion can be placed under the buttocks. Due to the higher seating position achieved, the cross-legged position becomes more comfortable.
  • the user sits only with his buttocks (and possibly the thighs) on a flat and horizontally arranged surface of the seat.
  • the legs are spread outwards and the feet are parked in front of the seat on the floor.
  • the user sits here on the seat as a (normal) stool.
  • the seat is used to take a corresponding healthy sitting position.
  • the seat cushion is used either to be able to take this sitting position more comfortably or to take this sitting position longer (depending on the mobility or health of the user).
  • the seat cushion leads to a significant relief especially of the knee and ankle joints of the user.
  • the seating furniture according to the invention and the seat according to the invention can provide a remedy.
  • the seat can be pushed in a suitable arrangement with a comparatively low height partially under the desk. Then the user can put a foot on the seat, and also change the parked foot. This allows a variable dynamic standing at the desk with a supported foot.
  • Fig. 1A and Fig. 1 B is a schematic representation of a preferred embodiment of the seat according to the invention with seating (Fig. 1A) and seat cushion (Fig. 1 B), and
  • Fig. 2 is an exploded schematic representation of a preferred
  • Embodiment of a seat according to the invention Embodiment of a seat according to the invention.
  • Figs. 1A and 1B show the combination of a seat 1 and a seat cushion 5, which together form the seating according to the invention.
  • the seat 1 has the shape of a cuboid with the edge lengths a, b and c.
  • a total of six, opposite pairs of flat surfaces are formed on the seat 1, all six can be used as a seat.
  • the three different surfaces, of which there are two in each case, are identified by the reference symbols 2, 3 and 4 in FIG. 1A.
  • FIG. 1A The dimensions of the seat 1 and the inner structure of the seat 1 core and outer layer are not shown in detail in Fig. 1A. Reference is made to FIG. 2. As explained in the description, the seat 1 may be enveloped by a cover, which protects the outer layer in particular against damage and contamination.
  • the further component of the seat according to the invention, namely the seat cushion 5, is shown in FIG. 1B.
  • This seat cushion 5 has a, not shown in Fig. 1 B filling of microspheres. These microspheres are made of hard foam plastic and have a diameter of less than 2 mm.
  • the seat cushion 5 is not shown to scale relative to the seat 1 of FIG. 1A. It has a common dimension for seat cushions, in particular with a diameter of the oval cross-sectional area between 20 and 40 cm. Its height is between 10 and 20 cm.
  • the seat cushion has an (outer) reference, which is not shown in detail in Fig. 1 B.
  • Fig. 1B shows a handle / a strap 6, by means of which the seat cushion can be easily transported.
  • FIG. 2 the internal structure of a seating 21 according to the invention, which is part of a chair according to the invention, shows.
  • the seat 21 has a core 22 made of a polystyrene foam.
  • the material used is a predominantly closed-cell, hard foam.
  • edge lengths of the core 22 are within the ranges specified in claim 11. In the illustrated case, edge lengths of 88 cm (a), 68 cm (b) and 36 cm (c) are preferred.
  • These elements consist of a flexible foam plastic, namely a polyurethane (PUR) composite foam. This has a much lower strength (hardness) than the hard foam plastic used for the core 22.
  • PUR polyurethane
  • the plate-shaped elements 23, 24, 25 and 26 are associated with the corresponding dimensions of the side surfaces of the core 22, and may for example be glued to the outer surfaces of the core 22. Accordingly, based on the above-mentioned preferred size of the core 22, the plate elements 23 have the area dimensions 68 cm x 36 cm, the plate elements 24 have the area dimensions 90 cm x 36 cm and the plate elements 25 and 26 have the area dimensions 90 cm x 70 cm. As shown in Fig. 2, the plate member 26 has a greater thickness than the other plate members. In the preferred illustrated case, the plate members 23, 24 and 25 have a thickness of 1 cm, and the plate member 26 has a thickness of 3 cm.
  • the plane formed by this plate member flat (surface), which can serve as a seat for the user of the seat 21, has a lower strength than the other seating surfaces of the seat 21.
  • the of the Plate member 26 formed seat surface is so softer by its greater thickness than the other seating surfaces, in which over the hard core 22 only a 1 cm thick outer layer of the seat 21 is provided.
  • FIG. 2 a seat according to the invention according to FIG. 1A with the (total) dimensions 90 cm (a), 70 cm (b) and 40 cm (c) is produced.
  • the volume occupied by the core 22 within the seating 21, is relatively large.
  • the volume fraction of the core 22 in the total volume of the seating 21 is 85%.
  • a user may preferably occupy the seated positions of the deep squat, the heel seat, the cross-legged seat and the straddle seat mentioned in the description.
  • the cuboid seat is placed depending on the size or preference of the user on one of its side surfaces, and the seating position is taken on the then opposite horizontal seat.
  • the user u. a. choose whether to sit on a softer side surface or on a softer side.

Landscapes

  • Mattresses And Other Support Structures For Chairs And Beds (AREA)

Abstract

L'invention concerne un siège comprenant au moins un ensemble siège (1,21) se présentant à la manière d'une structure surélevée formant assise de type podium (1) ou tabouret, et au moins un coussin d'assise (5). L'ensemble siège comprend un cœur dur (22) et une couche externe (23-26) souple. Le cœur dur est constitué de préférence d'au moins une mousse plastique rigide, tandis que la couche externe est constituée de préférence d'au moins une mousse plastique souple. Le coussin d'assise comporte une garniture interne constituée de microbilles en mousse plastique rigide présentant un diamètre inférieur à 2 mm.
EP19703712.0A 2018-02-07 2019-02-06 Siège Pending EP3749143A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102018201887.1A DE102018201887A1 (de) 2018-02-07 2018-02-07 Sitzmöbel
PCT/EP2019/052878 WO2019154838A1 (fr) 2018-02-07 2019-02-06 Siège

Publications (1)

Publication Number Publication Date
EP3749143A1 true EP3749143A1 (fr) 2020-12-16

Family

ID=65324386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19703712.0A Pending EP3749143A1 (fr) 2018-02-07 2019-02-06 Siège

Country Status (4)

Country Link
US (1) US11583091B2 (fr)
EP (1) EP3749143A1 (fr)
DE (1) DE102018201887A1 (fr)
WO (1) WO2019154838A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1504258A1 (de) * 1964-08-01 1969-10-09 Bayer Ag Verfahren zur Herstellung von Moebeln,insbesondere Sitzmoebeln aus Schaum-Kunststoffen
DE1952162U (de) * 1966-06-14 1966-12-22 Correcta Werke Gmbh Sitz- und liegemoebel od. dgl.
DE1952162A1 (de) 1969-10-16 1971-04-29 Horst Zimmermann Bodenbewegungsmaschine,insbesondere zum Herstellen von Graeben und Kanaelen
DE20007630U1 (de) 2000-04-27 2000-08-17 Ziegleder Weis Agnes Mehrfunktionskissen
DE202006015434U1 (de) 2006-10-09 2006-12-14 Löffler Bürositzmöbel GmbH Sitzmöbel zum aktiv-dynamischen Sitzen
US8158249B2 (en) * 2007-05-21 2012-04-17 Featherlyte, Llc Multi-layered foam furniture method and apparatus
US9456696B2 (en) * 2013-11-29 2016-10-04 Zinus, Inc. Foam furniture molded around a core with a lumbar support protrusion
CN104096365A (zh) * 2014-01-23 2014-10-15 际诺思（厦门）轻工制品有限公司 一种海绵玩具
DE202015104535U1 (de) 2015-08-26 2015-11-03 Bolan Home Fashion Gmbh Hocker mit Stoffbespannung
US10034549B1 (en) * 2017-08-14 2018-07-31 Marcos Gois Basques Footstool and a method for making

Also Published As

Publication number Publication date
DE102018201887A1 (de) 2019-08-08
WO2019154838A1 (fr) 2019-08-15
US20210037979A1 (en) 2021-02-11
US11583091B2 (en) 2023-02-21

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