EP4081072B1 - Chaise et système de joint pour une chaise ou un appareil d'assise - Google Patents

Chaise et système de joint pour une chaise ou un appareil d'assise Download PDF

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Publication number
EP4081072B1
EP4081072B1 EP21700542.0A EP21700542A EP4081072B1 EP 4081072 B1 EP4081072 B1 EP 4081072B1 EP 21700542 A EP21700542 A EP 21700542A EP 4081072 B1 EP4081072 B1 EP 4081072B1
Authority
EP
European Patent Office
Prior art keywords
receiving cylinder
wall
wall portion
bearing gap
joint
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
Application number
EP21700542.0A
Other languages
German (de)
English (en)
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EP4081072A1 (fr
Inventor
Thomas Hermann Schröder
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.)
Aeris GmbH
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Aeris GmbH
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Filing date
Publication date
Application filed by Aeris GmbH filed Critical Aeris GmbH
Publication of EP4081072A1 publication Critical patent/EP4081072A1/fr
Application granted granted Critical
Publication of EP4081072B1 publication Critical patent/EP4081072B1/fr
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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
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid 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
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/24—Chairs or stools with vertically-adjustable seats with vertical spindle
    • A47C3/245—Chairs or stools with vertically-adjustable seats with vertical spindle resiliently supported
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/448—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with resilient blocks
    • 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
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • A47C7/004—Chair or stool bases for chairs or stools with central column, e.g. office chairs
    • 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
    • A47C9/00—Stools for specified purposes
    • A47C9/02—Office stools not provided for in main groups A47C1/00, A47C3/00 or A47C7/00; Workshop stools
    • A47C9/025—Stools for standing or leaning against, e.g. in a semi-standing or half-seated position

Definitions

  • the invention relates to a chair or a joint system for a chair or a seating device.
  • a ground-level base section base or a support
  • an intermediate section e.g. several legs or a chair column
  • an upper seat section e.g. several legs or a chair column
  • most chairs, stools or seats have had a rigid connection for the two interfaces between the base, intermediate section and seat.
  • Recent developments have provided a flexible connection for at least one of these interfaces with an associated return mechanism.
  • the present invention deals with those seats that are also referred to as active dynamic chairs, in particular designed as a pendulum seat or pendulum chair with a flexible connection between the base and the intermediate section, here a chair column.
  • Such movable or active-dynamic chairs differ from static chairs in that the chair user sitting on the chair can perform movements of the torso and the body together with the seat part, which is not possible with static chairs.
  • Human physiology prefers dynamic movements to static rest, even when sitting.
  • Chairs that simultaneously support the weight of the legs should not only allow dynamic movement, but also provide ergonomic support for the seat user.
  • seating furniture is equipped with appropriately designed seats and backrests in the most anatomically favorable position possible, so that the body, especially the back, is supported.
  • Such seating furniture is often felt to be comfortable, but has the decisive disadvantage that the body only sits passively, ie the back muscles are hardly stressed and the intervertebral discs experience a permanent pressure load.
  • Such an active dynamic pendulum chair is, for example, from DE 42 44 657 02 known.
  • a generic seat device is described here, which consists of a foot part, an intermediate piece connected to the foot part and a seat part rigidly connected to the intermediate piece, the intermediate piece being held in an opening of the foot part so that it can be tilted in any lateral direction by means of an elastically deformable connecting element and in the is returned to its neutral position (rest position) in the unloaded state. That's how it shows US5921926 an active-dynamic pendulum chair, which is also based on the principle of an inverted pendulum. Such chairs have a defined path of travel and structural return mechanism, while also incorporating a guard to prevent the chair from tipping over.
  • the self-aligning bearing is designed as an anti-vibration metal and consists of an essentially tubular upper part, the upper end of which is used for the wedge connection, a lower part which is firmly attached to an arm of the foot part and one between the upper part and lower part arranged elastic material.
  • the pendulum bearing allows a back and forth
  • the present invention is therefore based on the task of optimizing the aforementioned aspects and providing an active dynamic chair in which the seat user can perform safe and varied movements of the seat part in a defined range of motion and the pendulum joint can be produced inexpensively and has a long service life.
  • a joint arrangement comprising a hollow-cylindrical receiving cylinder, which extends in one direction of the cylinder axis, is designed to receive one end of a chair column of an active-dynamic pendulum chair, with the latter being movably mounted in an essentially hollow-cylindrical outer joint shell, which is composed of two or more parts made up of joint shell segments is, wherein the movable mounting of the receiving cylinder is realized by means of deformable elastic elements, which are arranged in a bearing gap between an outer wall section of the receiving cylinder and an inner wall section of the joint shell and the receiving cylinder can be actuated in a force-dependent manner, whereby the shape and position can be changed. or the position of the elastic elements is changed in that the gap dimension of the bearing gap changes, preferably decreases, viewed in a radial direction when the receiving cylinder is actuated in a cylinder axis direction.
  • the concept therefore uses opposite outer lateral surfaces of the receiving cylinder, which are oriented in the same way in the bevel in the cone angle, on the one hand and inner lateral surfaces of the bearing shell on the other hand, between which a bearing gap is intended to accommodate elastic elements. Due to the translational displacement of the receiving cylinder in the axial direction, the gap size is reduced because the conical lateral surfaces then move towards one another and an elastic element lying between them is elastically deformed and possibly displaced along the lateral surface or is moved along this surface.
  • An embodiment of a joint arrangement is therefore particularly advantageous, in which the movable mounting of the receiving cylinder is realized by means of deformable elastic elements which are arranged in the bearing gap between a conically tapering outer wall section of the receiving cylinder and a conically tapering inner wall section of the joint shell and the receiving cylinder can be actuated as a function of force in a cylinder axis direction, as a result of which the shape and/or position of the elastic elements changes by the gap dimension of the bearing gap decreasing in a radial direction (Rs), in particular along the entire circumference.
  • Rs radial direction
  • the conical lateral surfaces mentioned run or are oriented parallel to one another, so that when viewed in translation in the axial direction of the receiving cylinder, the bearing gap between them changes linearly proportionally.
  • the bevel i.e. the angle of the conical lateral surfaces, is designed to be slightly different in relation to the axial direction of extent.
  • the outer wall of the receiving cylinder has at least a first upper and a second lower wall section offset in the direction of the cylinder axis, each tapering, and between the two wall sections preferably a radially constricted wall section with a smaller diameter is provided, which preferably viewed in a longitudinal section through the receiving cylinder, has a concave shape.
  • the outer wall of the receiving cylinder is preferably also provided at the lower end of the upper concave wall section with a projection that extends radially outwards in the direction of the bearing gap, which preferably runs partially or completely circumferentially along the outer wall and against which an elastic element arranged in the bearing gap in this area bears.
  • the outer wall of the receiving cylinder is provided at the lower end of the lower concave wall section, which extends radially outwards in the direction of the bearing gap and which preferably runs partially or completely circumferentially along the outer wall and against which an im Bearing gap in this area arranged elastic element stores.
  • the inner wall of the hollow-cylindrical outer joint shell has at least a first upper and a second lower inner wall section, offset in the cylinder axis direction (Z), each tapering conically, and between the two inner wall sections a radially inwardly extending projection is provided, which preferably extends in the circumferential direction partially or completely circumferentially along the inner wall.
  • the aforesaid measures of the projections define, in particular, end-side limitations in order to limit the translational displacement of both the elastic elements and the receiving cylinder. Thus, these projections also represent end stops of the bearing.
  • the respective conically tapering inner wall sections are opposite the conically tapering outer wall sections viewed in the radial direction and are relatively offset in their position in the axial direction in order to achieve the intended and permissible immersion depth of the To define receiving cylinder in the hollow cylindrical joint shell.
  • a further advantageous embodiment of the invention provides that the elastic elements placed in the bearing gaps are ring-shaped and are arranged in the bearing gap in a completely circumferential manner. Ring-shaped elastic rings with a circular or oval cross-section are suitable for this purpose.
  • a further aspect of the present invention relates to a seat with a chair column, the end of which is fastened in a joint arrangement according to the invention which is close to the floor, in particular its lower end is inserted into the hollow-cylindrical receiving cylinder.
  • FIG 1 12 is a perspective view of one embodiment of a joint assembly 10 in accordance with the present invention in an unassembled state Assembled shown showing the essential individual parts.
  • the joint arrangement 10 comprises a hollow-cylindrical receiving cylinder 20 which is arranged centrally and extends in a direction Z of the cylinder axis. In this view, the part close to the ground is at the bottom, while a chair column 30 of an active dynamic pendulum chair extends upwards away. The chair column 30 is inserted into the cylindrical seat of the receiving cylinder 20, as shown in FIGS Figures 2 to 5 you can see.
  • two joint shell segments 45 of a two-part, hollow-cylindrical outer joint shell 40 are shown.
  • the two joint shell segments 45 are connected to one another by connecting means 46, so that the joint shell 40 receives the receiving cylinder 20, forming a bearing gap 60, as is shown in FIGS Figures 2 to 5 is shown.
  • the flexible mounting of the receiving cylinder 20 in the joint socket 40 is realized by means of two deformable, elastic ring elements 50 . These are variable in shape and position in said bearing gap 60 between an outer wall section 21, 22 of the receiving cylinder 20 and an inner wall section 41, 42 of the joint shell 40, namely between a conically tapering outer wall section 21, 22 of the receiving cylinder 20 and a conically tapering inner wall section 41, 42 of the joint shell 40.
  • the progression of the circumferential bearing gap is clearly visible, in which the gap size changes as a function of the height viewed in the radial direction Rs, but is constant when viewed in the direction of rotation.
  • the gap dimension is constant all the way around and is therefore constant the distance between the outer surface depends on the difference between the outer diameter of the receiving cylinder 20 in this area and the inner diameter of the joint shell 40 in this sectional plane.
  • the gap dimension of the bearing gap 60 decreases in the region of the conical lateral surfaces in the radial direction (Rs) viewed downwards when the receiving cylinder 20 is actuated in the cylinder axis direction Z. As a result, the elastic ring elements 50 are deformed.
  • the outer wall of the receiving cylinder 20 has a first, ie, upper, and a second, ie, lower, offset in the direction of the cylinder axis Z, each tapering wall section 21 and 22 respectively.
  • a radially constricted wall section 26 with a smaller diameter is provided between the two wall sections 21, 22 and has a concave shape. In the direction of this concave shape, a projection 43 protrudes from the inner wall surface of the bearing shell 40.
  • the outer wall of the receiving cylinder 20 has, at the lower end of the upper concave wall section 21, a projection 23 which protrudes radially outwards in the direction of the bearing gap 60. This is provided on the outer wall in an annular manner.
  • the elastic ring element 50 arranged in this area in the bearing gap 60 rests against this projection 23, as is shown, for example, in FIG Figure 2 and 3 is good to see.
  • a projection 24 which extends radially outwards into the bearing gap 60 and also runs completely around the outer wall in the circumferential direction and against which a bearing gap 60 in this Area arranged further, namely second elastic ring element 50 stores.
  • the two concave outer lateral surfaces on the receiving cylinder 20 are approximately identical in shape.
  • the inner wall of the hollow-cylindrical outer joint shell 40 has a first upper and a second lower inner wall section 41 and inner wall section 42, offset in the direction of the cylinder axis Z, each tapering conically.
  • the aforementioned projection 43 is provided between the two inner wall sections 41, 42, which also runs all the way around in the circumferential direction along the inner wall.
  • lugs 47 are provided on the joint shell, which in this exemplary embodiment are arranged all the way around, but can also only be attached in sequential sections. These serve as counter bearings for the elastic elements 50.
  • FIG 6 a view for explaining the bevel of the conically tapering lateral surfaces is shown.
  • the respective cone angles ⁇ relative to the vertical S are equal in magnitude and represent alternating angles.
  • the distance between the parallel wall sections corresponds to the diameter D of the elastic ring element 50, which is circular in cross section.
  • the housing shell 40 can be provided with a flange at the lower end in order to attach it to a stand or base plate close to the floor.

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Pivots And Pivotal Connections (AREA)

Claims (11)

  1. Agencement de joint (10), comprenant un cylindre de réception cylindrique creux (20) qui s'étend dans une direction d'axe de cylindre (Z), réalisé pour recevoir une extrémité d'une colonne de chaise (30) d'une chaise oscillante active et dynamique, dans lequel ledit cylindre est monté mobile dans une coque de joint extérieure (40) substantiellement en forme de cylindre creux et composée de segments de coque de joint (45) en deux ou plusieurs parties,
    dans lequel le montage mobile du cylindre de réception (20) est réalisé au moyen d'éléments élastiques déformables (50) qui sont disposés de manière variable en forme et en position dans une fente de palier (60) entre respectivement une partie de paroi extérieure (21, 22) du cylindre de réception (20) et une partie de paroi intérieure (41, 42) de la coque de joint (40), et le cylindre de réception (20) peut être actionné en fonction d'une force de sorte que la forme et/ou la position des éléments élastiques (50) change(nt) en ce que la dimension de fente de la fente de palier (60), vue dans une direction radiale (Rs), varie, de préférence diminue, lorsque le cylindre de réception (20) est actionné dans une direction d'axe de cylindre (Z).
  2. Agencement de joint (10) selon la revendication 1, caractérisé en ce que le montage mobile du cylindre de réception (20) est réalisé au moyen d'éléments élastiques déformables (50) qui sont disposés de manière variable en forme et en position dans une fente de palier (60) entre respectivement une partie de paroi extérieure (21, 22) de forme conique du cylindre de réception (20) et une partie de paroi intérieure (41, 42) de forme conique de la coque de joint (40), et le cylindre de réception (20) peut être actionné en fonction d'une force dans une direction d'axe de cylindre (Z) de sorte que la forme et/ou la position des éléments élastiques (50) change(nt) en ce que la dimension de fente de la fente de palier (60), vue dans une direction radiale (Rs), diminue en particulier le long de toute la circonférence.
  3. Agencement de joint (10) selon la revendication 1 ou 2, dans lequel la paroi extérieure du cylindre de réception (20) présente au moins une première partie de paroi supérieure (21) et une deuxième partie de paroi inférieure (22), décalée dans la direction d'axe de cylindre (Z), respectivement de forme conique, et entre les deux parties de paroi (21, 22) est prévue une partie de paroi radialement rétrécie d'un diamètre inférieur qui présente une forme concave, de préférence vu en coupe longitudinale à travers le cylindre de réception (20).
  4. Agencement de joint (1) selon la revendication 1, 2 ou 3, caractérisé en ce que sur la paroi extérieure du cylindre de réception (20), à l'extrémité inférieure de la partie de paroi concave supérieure (21), est prévue une saillie (23) s'étendant radialement vers l'extérieur en direction de la fente de palier (60) qui s'étend de préférence dans la direction circonférentielle partiellement ou complètement de manière périphérique le long de la paroi extérieure et sur laquelle s'appuie un élément élastique (50) disposé dans cette zone dans la fente de palier (60).
  5. Agencement de joint (10) selon l'une quelconque des revendications précédentes, dans lequel sur la paroi extérieure du cylindre de réception (20), à l'extrémité inférieure de la partie de paroi concave inférieure (22), est prévue une saillie (24) s'étendant radialement vers l'extérieur en direction de la fente de palier (50) qui s'étend de préférence dans la direction circonférentielle partiellement ou complètement de manière périphérique le long de la paroi extérieure et sur laquelle s'appuie un élément élastique (50) disposé dans cette zone dans la fente de palier (60).
  6. Agencement de joint (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi intérieure de la coque de joint extérieure (40) en forme de cylindre creux présente au moins une première partie de paroi intérieure supérieure (41) et une deuxième partie de paroi intérieure inférieure (42), décalée dans la direction d'axe de cylindre (Z), respectivement de forme conique, et entre les deux parties de paroi intérieure (41, 42) est prévue une saillie (43) s'étendant radialement vers l'intérieur qui s'étend de préférence dans la direction circonférentielle partiellement ou complètement de manière périphérique le long de la paroi intérieure.
  7. Agencement de joint (1) selon la revendication 6, caractérisé en ce que les parties de paroi intérieure (41, 42) respectivement de forme conique sont opposées aux parties de paroi extérieure (21, 22) de forme conique, vues dans la direction radiale.
  8. Agencement de joint (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments élastiques (50) sont réalisés en forme d'anneau et sont disposés de manière complètement périphérique dans la fente de palier (60).
  9. Agencement de joint (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la force nécessaire pour actionner le cylindre de réception (20) augmente dans une direction d'axe de cylindre (Z) en ce que la dimension de fente diminue et en ce que les éléments élastiques (50) sont de plus en plus comprimés et déformés à mesure que la force augmente.
  10. Chaise oscillante présentant une assise munie d'une colonne de chaise dont l'extrémité est fixée dans un agencement de joint (10) près du sol selon l'une quelconque des revendications précédentes, en particulier emboîtée dans le cylindre de réception (20) en forme de cylindre creux.
  11. Procédé de montage des pièces d'un agencement de joint (10) selon l'une quelconque des revendications précédentes 2 à 9, comprenant les étapes suivantes consistant à :
    a) fixer un premier élément annulaire élastique (50) sur la gaine extérieure du cylindre de réception (20) en forme de cylindre creux dans la zone de la partie de paroi supérieure (21) de forme conique, et
    b) fixer un deuxième élément annulaire élastique (50) sur la gaine extérieure du cylindre de réception (20) en forme de cylindre creux dans la zone de la partie de paroi inférieure (22) de forme conique, et ensuite
    c) introduire le cylindre de réception (20) entre les segments de coque de joint (45) et raccorder les segments de coque de joint (45) à l'aide de moyens de raccordement (46).
EP21700542.0A 2020-06-24 2021-01-12 Chaise et système de joint pour une chaise ou un appareil d'assise Active EP4081072B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020116642.7A DE102020116642A1 (de) 2020-06-24 2020-06-24 Stuhl bzw. ein Gelenksystem für einen Stuhl oder eine Sitzvorrichtung
PCT/EP2021/050469 WO2021259522A1 (fr) 2020-06-24 2021-01-12 Chaise et système de joint pour une chaise ou un appareil d'assise

Publications (2)

Publication Number Publication Date
EP4081072A1 EP4081072A1 (fr) 2022-11-02
EP4081072B1 true EP4081072B1 (fr) 2023-08-09

Family

ID=74186689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21700542.0A Active EP4081072B1 (fr) 2020-06-24 2021-01-12 Chaise et système de joint pour une chaise ou un appareil d'assise

Country Status (5)

Country Link
US (1) US20230263308A1 (fr)
EP (1) EP4081072B1 (fr)
CN (1) CN115151166A (fr)
DE (1) DE102020116642A1 (fr)
WO (1) WO2021259522A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4244657C2 (de) 1992-03-27 1998-11-26 Josef Gloeckl Aktivdynamische Sitzvorrichtung
DE19504121A1 (de) 1995-02-08 1996-08-14 Josef Gloeckl Pendelhocker mit zentral unter der Sitzfläche angeordneter Kontakteinrichtung
US5921926A (en) 1997-07-28 1999-07-13 University Of Central Florida Three dimensional optical imaging colposcopy
FI105893B (fi) * 1998-06-03 2000-10-31 Lappset Group Oy Jousinivelrakenne
US6209958B1 (en) * 1998-10-23 2001-04-03 Haworth, Inc. Universal tilt mechanism for a chair
US6601818B1 (en) * 2000-10-12 2003-08-05 Lord Corporation Tilting mount with integral flange
DE10338549A1 (de) 2003-08-19 2005-03-24 GLÖCKL, Josef Pendelstuhl
DE202005001741U1 (de) * 2005-02-03 2005-03-31 Gloeckl Josef Tragelement für ein Sitzmöbel
DE102009019880A1 (de) 2009-05-06 2011-01-20 Josef GLÖCKL Bewegliches Sitzmöbel mit einer Vorrichtung zum Steuern einer Rückstellkraft
US10772432B2 (en) * 2016-07-28 2020-09-15 Bright Company Inc. Foot and leg support device for a chair

Also Published As

Publication number Publication date
CN115151166A (zh) 2022-10-04
DE102020116642A1 (de) 2021-12-30
US20230263308A1 (en) 2023-08-24
WO2021259522A1 (fr) 2021-12-30
EP4081072A1 (fr) 2022-11-02

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