EP2244606B1 - Pied de chaise avec blocage du roulage - Google Patents

Pied de chaise avec blocage du roulage Download PDF

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Publication number
EP2244606B1
EP2244606B1 EP09710471A EP09710471A EP2244606B1 EP 2244606 B1 EP2244606 B1 EP 2244606B1 EP 09710471 A EP09710471 A EP 09710471A EP 09710471 A EP09710471 A EP 09710471A EP 2244606 B1 EP2244606 B1 EP 2244606B1
Authority
EP
European Patent Office
Prior art keywords
chair
stopper
chair base
actuating device
base 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.)
Not-in-force
Application number
EP09710471A
Other languages
German (de)
English (en)
Other versions
EP2244606A1 (fr
Inventor
Martin Braun
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.)
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Original Assignee
Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
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 Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV filed Critical Fraunhofer Gesellschaft zur Forderung der Angewandten Forschung eV
Publication of EP2244606A1 publication Critical patent/EP2244606A1/fr
Application granted granted Critical
Publication of EP2244606B1 publication Critical patent/EP2244606B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/002—Chair or stool bases
    • A47C7/006—Chair or stool bases with castors

Definitions

  • the invention relates to a rollable chair foot, especially for high chairs, which is secured when climbing against rolling in the loaded state
  • a high chair with rollable chair foot is known from DE 920427 / Ul
  • the chair foot according to the invention is used in roll-filled high chairs, preferably in the office area.
  • a high chair eg counter chair
  • a high chair is a swivel chair with a raised seat, which is used, for example, in the office and in production.
  • An essential feature of the high chair is the climbing aid (or foot contact area).
  • every chair with a seat height> 650 mm has to be equipped with a climbing aid.
  • the feet of the user do not reach the ground level in normal sitting position.
  • High chairs are used, among other things, in sitting-standing workstations with a fixed worktop height. For reasons of accident protection (ie rolling protection, stability) are placed on high chairs special requirements in terms of the size of the base and the execution of ground contact surfaces.
  • High chairs must have either chair glides (for use on carpeted floors) or loaded braked castors. A loaded braked roller brakes only in the loaded condition. As a result, rolling away of the high chair is prevented by slight impact before sitting down.
  • the chair foot according to the invention initially has a standing device with which it can be adjusted to a standing surface, for example the floor.
  • the Stand device where it is in contact with the stand surface, at least three rollers or sliders on. With wheels, therefore, the chair foot is rollable on the stand, with glides it is slidable.
  • Chair gliders are preferred for use on carpeting.
  • the chair foot according to the invention further comprises a seat holder to which a chair seat is attachable.
  • a seat holder may for example be a pillar which is arranged between the stand device and a seat.
  • a seat support can be used with the usual in office chairs devices such. a device for height adjustment, suspension and / or damping, as well as various pan, tilt and rotation options be equipped.
  • the chair foot also has a braking device with which the chair is braked while climbing.
  • the braking effect should be independent of the loading condition of the chair seat, the seat holder or the stand device.
  • the braking device therefore has at least one stopper and at least one actuating device with which the stopper can be pressed against the base surface.
  • the stopper may be any element which is suitable, for example by frictional force in contact with the standing surface, to prevent displacement of the chair base in a direction parallel to the standing surface.
  • the actuator may be in force and / or cohesive connection with the stopper, but it may also be indirectly connected to the stopper, for example via mechanical, hydraulic, pneumatic or electrical mechanisms that press the stopper in the direction of the base surface upon actuation of the actuator.
  • the actuating device In order to enable the operation of the braking device independently of a load on the chair, the actuating device relative to the seat support and / or the stand device and / or a seat is movable.
  • the actuating device is preferably a different and / or independent element from the standing device, the seat holder and / or the seat.
  • the relative mobility is preferably designed such that it is also movable in the case of a rigid stand device, seat holder or seat.
  • the chair foot has at least one restoring element, which is arranged so that it removes the stopper with unloaded actuating device from the base and returns to an initial state.
  • this restoring element is achieved that the braking device is returned to the non-braking starting position without loading the actuator without additional effort.
  • it can also be provided in addition to the return element locking options that hold the stopper against the force of the return element in contact with the base, even if the actuator is not operated or relieved.
  • a restoring element are in particular springs, electrical equipment and / or hydraulic and / or pneumatic cylinders in question.
  • the chair foot according to the invention is preferably used in chairs which are constructed like conventional office chairs or high chairs.
  • the stand device is a base with at least three, preferably five, arms which are attached at their one end to a column perpendicular to the standing surface, and at their other ends each have a roller or a slider.
  • the angle between two adjacent arms as viewed from the column is preferably the same in each case, so that the greatest possible stability is ensured.
  • Said column serves as a seat holder, at the upper end of the seat can be arranged.
  • the actuating device is advantageously arranged around the seat support, so that it is equally easy to operate in rotatable seats in any position of the seat. It is preferably annular and / or flat. It is particularly advantageous if it is arranged at a height in which it can serve as a climbing aid. This is particularly useful in high chairs.
  • the actuating device configured in this way can be identical to the climbing aid or foot contact surface required for highchairs. In this way, the braking device is automatically actuated when climbing the chair by the body weight of the user. If the user has climbed the chair and relieved the actuator, the brake device releases the chair, so that it is freely movable. The cancellation of the locking function can be delayed for certain applications.
  • the stopper is preferably a flat, substantially plate-shaped locking punch, which is arranged centrally under the seat holder. It can also be a voluminous element that is flattened to achieve the largest possible knotakt requirements. Its extension in the direction parallel to the standing surface is preferably smaller than the distance between the rollers or sliders relative to one another, so that the ram can be arranged between the rollers or sliders. That surface of the stopper, with which it is in contact with the standing surface in the actuated state, is preferably equipped with a material having a high coefficient of friction. When using gliders, the coefficient of friction of the stopper should be greater than that of the slider. Such materials can be eg hard rubber, PVC or various metal sheets (also corrugated).
  • the actuator and the stopper may be interconnected in a variety of ways.
  • Rods that run parallel to the seat mount.
  • the seat holder at least partially and / or on a part of its length surrounding tube, which may optionally be cut out so that it is movable past the stand device.
  • indirect mechanisms such as hydraulic, pneumatic and / or electric power transmission mechanisms, conceivable.
  • the said restoring element is particularly preferably a spring which surrounds the standing device and is arranged between the connecting device, which connects the actuating device and stopper and the standing device or a board of the seat holder is. When loading the actuator and thus movement of the brake device in the direction of the base, this spring is then compressed or stretched.
  • connection between the actuator and the stopper is a guide element, i. Socket, which is longitudinally displaceable relative to the standing device and / or the seat holder.
  • the transverse clearance between the chair column and the guide element is preferably dimensioned small, so that the forces acting on the foot contact surface or the actuating device are transmitted reliably into the stopper and the standing device.
  • tilting of the chair is prevented even in the case of an unfavorable introduction of force into the foot contact surface or actuating device (i.e., the amount of tilt is determined by the diameter of the base device or of the foot cross). A rotation of the guide element relative to the chair column is prevented.
  • FIG. 1 shows a conventional highchair.
  • This high chair has a seat 5 which is rotatably mounted on a columnar seat support 4.
  • the columnar seat support 4 stands on one Stand device having here five arms 7a, 7b, 7c, which run together under the column 4 at equal angles.
  • the arms 7a, 7b, 7c each have a roller 2a, 2b, 2c on which the chair is rollable.
  • the highchair also has a climbing aid 3, which also serves as foot contact surface 3.
  • the climbing aid 3 is arranged in a ring around the pedestal 4 and connected by struts with this column in the center.
  • the climbing aid 3 is arranged at a height so that a user sitting on the seat 5 reaches the climbing aid 3 with his feet.
  • FIG. 2 now shows a stool foot according to the invention.
  • This chair base initially has a standing device 7, which has at least three arms 7a, 7b, 7c.
  • the arms 7a, 7b are fastened with their one end to a columnar seat holder 4 and have at their other end in each case a roller 2a, 2b, with which the standing device 7 stands on a standing surface 11.
  • the chair foot according to the invention also has an actuating device 3 which simultaneously serves as a climbing aid 3 and foot contact surface 3.
  • This actuating device 3 is connected to the stopper 9 via guide elements 8 running parallel to the columnar seat holder 4.
  • the climbing aid 3, the guide elements 8 and the stopper 9 in the example shown together form the braking device.
  • the braking device is movable here in the direction parallel to the axis of the column 4, so that when the foot contact surface 3 is loaded the stopper 9 can be pressed against the base 11.
  • the contact surface 10 of the stopper 9 with the base 11 on a material with a particularly high coefficient of friction.
  • a seat column 4 rotating spring 6 is arranged, which is compressed when the brake device pressed under load the climbing aid 3 in the direction of the base 11 becomes. If the lifting aid 3 is relieved, the spring 6 presses the braking device in the direction away from the standing surface 11, so that the punch 9 is spaced from the standing surface 11.

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Special Chairs (AREA)
  • Massaging Devices (AREA)
  • Finger-Pressure Massage (AREA)

Claims (15)

  1. Pied de chaise
    comportant un piètement (7), qui présente au moins trois roulettes ou patins glisseurs et par lequel le pied de chaise peut être posé sur une surface du sol par le biais des au moins trois roulettes ou patins glisseurs,
    un support de fixation d'assise (4), sur lequel une assise de chaise (5) peut être installée, et
    un système de freinage, qui présente au moins un bloqueur (9) et un dispositif de manoeuvre (3) mobile par rapport au support de fixation d'assise (4), le bloqueur pouvant être appuyé, au moyen du dispositif de manoeuvre (3), contre la surface du sol,
    caractérisé par au moins un élément de repositionnement, qui est disposé de sorte que, lorsque le dispositif de manoeuvre n'est pas sollicité, il repositionne le bloqueur (9), sans dépenses physiques supplémentaires, dans une position initiale non freinante.
    et caractérisé en ce que le dispositif de manoeuvre (3) peut être utilisé comme aide pour monter sur la chaise et est disposé de sorte que le dispositif de manoeuvre est actionné au moment où l'on monte sur une chaise, dont le pied est ledit pied de chaise.
  2. Pied de chaise selon la revendication précédente, caractérisé en ce que le pied de chaise présente au moins un élément de repositionnement, qui est disposé de sorte qu'il exerce, sur le système de freinage, une force éloignant le bloqueur de la surface du sol.
  3. Pied de chaise selon la revendication précédente, caractérisé en ce que l'élément de repositionnement présente un ressort (6), un élément électrique, pneumatique et/ou hydraulique.
  4. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de manoeuvre et le au moins un bloqueur sont reliés l'un à l'autre par liaison de force et/ou de matière.
  5. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de manoeuvre et le bloqueur sont reliés l'un à l'autre par l'intermédiaire d'un dispositif de raccordement.
  6. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de manoeuvre et le bloqueur sont reliés l'un à l'autre par l'intermédiaire d'éléments mécaniques, hydrauliques, pneumatiques et/ou électriques.
  7. Pied de chaise selon la revendication 5 ou 6, caractérisé en ce que le au moins un élément de repositionnement est disposé entre le dispositif de raccordement et le piètement ou entre le dispositif de raccordement et le support de fixation d'assise.
  8. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de manoeuvre entoure au moins partiellement le piètement et/ou le support de fixation d'assise.
  9. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le dispositif de manoeuvre présente un élément fermé de manière annulaire, une surface de forme circulaire et/ou une surface de forme circulaire-annulaire.
  10. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le bloqueur est aplati d'un côté, avec lequel il peut être appuyé contre la surface du sol, afin d'obtenir une surface de contact la plus grande possible.
  11. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le piètement présente ou est un piètement en croix, qui présente au moins trois branches ayant, de préférence, la même longueur, qui sont reliées chacune, par leur une extrémité, à une colonne formant le support de fixation d'assise et qui sont pourvues, à leur autre extrémité, de respectivement une des roulettes.
  12. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le bloqueur est disposé à l'intérieur de la zone délimitée par les roulettes ou patins glisseurs qui en forment les points angulaires.
  13. Pied de chaise selon l'une quelconque des revendications précédentes, caractérisé en ce que le système de freinage peut être bloqué de sorte que le bloqueur reste en position appuyée contre la surface du sol lorsque le dispositif de manoeuvre n'est pas sollicité.
  14. Pied de chaise selon l'une quelconque des revendications précédentes,
    caractérisé en ce que le piètement présente un piètement en croix avec au moins trois branches, à l'extrémité desquelles une roulette ou un patin glisseur sont disposés respectivement, sur lequel les autres extrémités des branches sont respectivement reliées à une colonne verticale, posée perpendiculairement à la surface du sol, qui forme le support de fixation d'assise, et
    sur lequel le système de freinage présente un dispositif de manoeuvre entourant la colonne et/ou étant de forme circulaire et
    un piston formant le bloqueur, disposé en-dessous du piètement en croix entre les roulettes, sur lequel le dispositif de manoeuvre et le bloqueur sont reliés l'un à l'autre par un élément de guidage entourant la colonne sur au moins une partie de sa longueur et sur lequel un ressort hélicoïdal formant l'élément de repositionnement, ayant un axe hélicoïdal parallèle à la colonne, est disposé entre la colonne et l'élément de guidage de sorte que le ressort hélicoïdal peut être fléchi, en cas de sollicitation du dispositif de manoeuvre, moyennant une force orientée vers le piètement en croix.
  15. Chaise comportant un pied de chaise selon l'une quelconque des revendications précédentes et une assise installée sur le support de fixation d'assise.
EP09710471A 2008-02-15 2009-02-13 Pied de chaise avec blocage du roulage Not-in-force EP2244606B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008009413A DE102008009413A1 (de) 2008-02-15 2008-02-15 Stuhlfuß mit Rollsperre
PCT/EP2009/001029 WO2009100926A1 (fr) 2008-02-15 2009-02-13 Pied de chaise avec blocage du roulage

Publications (2)

Publication Number Publication Date
EP2244606A1 EP2244606A1 (fr) 2010-11-03
EP2244606B1 true EP2244606B1 (fr) 2011-09-07

Family

ID=40497630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09710471A Not-in-force EP2244606B1 (fr) 2008-02-15 2009-02-13 Pied de chaise avec blocage du roulage

Country Status (5)

Country Link
EP (1) EP2244606B1 (fr)
AT (1) ATE523110T1 (fr)
DE (1) DE102008009413A1 (fr)
DK (1) DK2244606T3 (fr)
WO (1) WO2009100926A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1037497C2 (nl) * 2009-11-25 2011-05-26 Gerardus Johannes Maria Pikker Stoel.
WO2011137922A1 (fr) 2010-05-03 2011-11-10 Merck Patent Gmbh Formulations et dispositifs électroniques
DE202013008612U1 (de) 2013-09-27 2013-10-16 Peter Peters Fußstütze für einen Stuhl
GB2524961A (en) * 2014-04-07 2015-10-14 Alan Edmond Glaser eLift400-movement lock with chair seat rotation
DE102015206766A1 (de) 2015-04-15 2016-10-20 Sedus Stoll Ag Permanent gebremste Rollenvorrichtung für ein Sitz-, Liege- und/oder Transportmöbel, und ein Sitz-, Liege- und/oder Transportmöbel
EP3311703A1 (fr) * 2016-10-24 2018-04-25 Stabilus GmbH Dispositif de réglage permettant d'actionner un frein et unité mobile, en particulier chaise
CN111616536A (zh) * 2020-05-07 2020-09-04 恒林家居股份有限公司 椅子及其摇摆椅脚
DE102021210905A1 (de) 2021-09-29 2023-03-30 Sedus Stoll Aktiengesellschaft Stuhl, insbesondere Hochstuhl, mit zwei Zuständen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2590382A (en) * 1949-04-09 1952-03-25 Ludwig P Danielson Stool
US2780277A (en) * 1952-06-27 1957-02-05 Ritter Co Inc Vertically adjustable pedestal stool
DE3933815A1 (de) * 1989-10-10 1991-04-18 Manuel Dr Menzel Arbeitsstuhl, insbesondere fuer zahnaerzte
DE9204271U1 (de) * 1992-03-30 1992-07-16 Jörg & Sohn GmbH, 8637 Ahorn Vorrichtung zum Feststellen eines Arbeitssessels
DE19715147C2 (de) * 1997-04-11 2001-03-08 Erich Edlinger Kg Arztstuhl
WO2001091615A1 (fr) * 2000-05-30 2001-12-06 Thomas Walser Pieds de chaise a suspension / mecanisme de chaise a centrage du poids
JP2002325652A (ja) * 2001-04-27 2002-11-12 Itoki Crebio Corp 椅子の足載せ装置

Also Published As

Publication number Publication date
DK2244606T3 (da) 2011-12-12
ATE523110T1 (de) 2011-09-15
WO2009100926A1 (fr) 2009-08-20
DE102008009413A1 (de) 2009-08-20
EP2244606A1 (fr) 2010-11-03

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