EP2244606A1 - Chair base with anti-roll device - Google Patents

Chair base with anti-roll device

Info

Publication number
EP2244606A1
EP2244606A1 EP09710471A EP09710471A EP2244606A1 EP 2244606 A1 EP2244606 A1 EP 2244606A1 EP 09710471 A EP09710471 A EP 09710471A EP 09710471 A EP09710471 A EP 09710471A EP 2244606 A1 EP2244606 A1 EP 2244606A1
Authority
EP
European Patent Office
Prior art keywords
chair
stopper
chair foot
foot according
seat
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.)
Granted
Application number
EP09710471A
Other languages
German (de)
French (fr)
Other versions
EP2244606B1 (en
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/en
Application granted granted Critical
Publication of EP2244606B1 publication Critical patent/EP2244606B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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, in particular for high chairs, which is secured against being rolled when climbing, but is freely rollable in the loaded state.
  • the chair foot according to the invention is used in roll-filled high chairs, preferably in the office area.
  • a high chair e.g., counter chair
  • a high chair is on
  • Swivel chair with raised seat as used in offices and in production.
  • a key feature of the high chair is the climbing aid (or frequentlyemployedStands composition).
  • 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 prevention (ie rolling protection, stability) special requirements are made on high chairs in terms of the size of the base and the execution of BodenaufStands vom.
  • 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 carpeted floors.
  • the chair foot according to the invention further has a seat holder on which a chair seat can be attached.
  • 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 forginanverstell- ability, suspension and / or damping, as well as various pivoting, tilting and rotating options be equipped.
  • the chair foot also has a braking device up, 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 actuating device can be connected to the stopper in a non-positive and / or cohesive connection, but it can also be connected indirectly to the stopper, for example via mechanical, hydraulic, or mechanical means.
  • the actuating device is movable relative to the seat holder and / or the standing device and / or a seat.
  • 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 stool foot at least one
  • Resetting element which is arranged so that it removes the stopper with unloaded actuator from the base and resets to an initial state. This restoring element ensures that the braking device is at
  • No load of the actuator is reset without additional effort in a non-braking starting position.
  • it can also be provided in addition to the return element Arret ists- opportunities 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.
  • As a restoring element in particular springs, electrical see devices 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 which the seat can be arranged.
  • the actuating device is advantageously arranged around the seat holder, so that it is equally easy to operate with rotatable seats in every 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 designed in this way can be identical to the climbing aid or footrest surface required for highchairs. In this way, the braking device is automatically actuated when climbing the chair by the body weight of the user. Does the user have the
  • the brake device releases the chair, so that it is freely movable.
  • the deactivation 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 in order to create as large a knotakt Structure as possible. len. 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 holder.
  • indirect mechanisms such as hydraulic, pneumatic and / or electrical Kraftübertragungsmecha- mechanisms conceivable.
  • the said restoring element is particularly preferably a spring, which surrounds the standing device and connects between the connecting device, which connects the actuating device and stopper, and the standing device or a board of the seat mount. is ordered. 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 small, so that the forces acting on the footrest surface or the actuating device are reliably transmitted to the stopper and the standing device.
  • tilting of the chair is prevented even in the case of an unfavorable introduction of force into the footrest surface or actuating device (that is, the amount of tilting is determined by the diameter of the base device or of the base of the foot).
  • a rotation of the guide element relative to the chair column is prevented.
  • Figure 1 is a conventional high chair
  • Figure 2 shows a chair foot according to the present invention.
  • FIG. 1 shows a conventional highchair.
  • This high chair has a seat 5, which is rotatably mounted on a pillar-shaped 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.
  • High chair also has a climbing aid 3, which also serves as refStands simulation 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 chair 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 predominantlyaufStands Type 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 here movable in the direction parallel to the axis of the column 4, so that when the footrest surface 3 is loaded, the stopper 9 can be pressed against the standing surface 11.
  • the example shown play 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 encircling spring 6 is arranged, which is compressed when the brake device under load the climbing aid 3 in the direction of the base 11 is pressed. 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)
  • Massaging Devices (AREA)
  • Finger-Pressure Massage (AREA)
  • Special Chairs (AREA)

Abstract

The invention relates to a chair base for caster high chairs, predominantly office high chairs. A high chair (e.g. counter height chair) is a swivel chair having a higher seating surface, such as is used in offices and along production lines. A substantial characteristic of the high chair is the climbing aid (or foot supporting surface). In accordance with DIN 68877 every high chair having a seating height > 650 mm has to be equipped with a climbing aid. The feet of the user do not touch ground in the normal seated position. High chairs are inter alia used for seated/standing-up work stations with a fixed work surface height. Prototypes have been developed in the prior art to prevent the high chair from inadvertently rolling away by means of guide rails and the like, approaches of this kind, however, have not proven to be reliable in practical use.

Description

Stuhlfug mit Rollsperre Chair joint with roll stop
Die Erfindung betrifft einen rollbaren Stuhlfuß, insbesondere für Hochstühle, welcher beim Besteigen ge- gen Wegrollen gesichert ist, im belasteten Zustand aber frei rollbar ist.The invention relates to a rollable chair foot, in particular for high chairs, which is secured against being rolled when climbing, but is freely rollable in the loaded state.
Der erfindungsgemäße Stuhlfuß kommt bei rollenbesetzten Hochstühlen, vorzugsweise im Bürobereich, zum Einsatz. Ein Hochstuhl (z.B. Counterstuhl) ist einThe chair foot according to the invention is used in roll-filled high chairs, preferably in the office area. A high chair (e.g., counter chair) is on
Drehstuhl mit erhöhter Sitzfläche, wie er u.a. im Büro und in der Produktion eingesetzt wird. Ein wesentliches Kennzeichen des Hochstuhls ist die Aufstiegshilfe (bzw. FußaufStandsfläche) . Entsprechend DIN 68877 ist jeder Stuhl mit einer Sitzhöhe > 650 mm mit einer Aufstiegshilfe auszustatten. Die Füße des Nutzers erreichen das Bodenniveau in normaler Sitzposition nicht. Hochstühle werden u.a. an Sitz-Steharbeitsplätzen mit fixer Arbeitsflächenhöhe eingesetzt. Aus Gründen des Unfallschutzes (d.h. Wegrollschutz, Standsicherheit) werden an Hochstühle besondere Anforderungen hinsichtlich der Größe des Fußkreuzes und der Ausführung der BodenaufStandsflächen gestellt. Hochstühle müssen entweder über Stuhlgleiter (für den Einsatz auf Teppichboden) oder belastet gebremste Rollen verfügen. Eine belastet gebremste Rolle bremst ausschließlich im belasteten Zustand. Hierdurch wird ein Wegrollen des Hochstuhls durch leichten Stoß vor dem Hinsetzen verhindert.Swivel chair with raised seat, as used in offices and in production. A key feature of the high chair is the climbing aid (or FußaufStandsfläche). According to DIN 68877 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 prevention (ie rolling protection, stability) special requirements are made on high chairs in terms of the size of the base and the execution of BodenaufStandsflächen. 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.
Diese Sicherheitsanforderung erschwert jedoch die Positionsveränderung des besetzten Hochstuhles am Arbeitsplatz. Dies schränkt die Verwendbarkeit und den Nutzwert des Hochstuhls im Arbeitsalltag erheblich ein, was dazu führt, dass hochgestellte Arbeitsplätze im Büro nahezu keine Anwendung finden, wenngleich sie aus ergonomischen und arbeitsorganisatorischen Gründen durchaus zu begrüßen sind.However, this safety requirement makes it difficult to change the position of the occupied high chair in the workplace. This considerably restricts the usability and usefulness of the highchair in everyday working life, which means that high-level workstations in the office are almost not used, although they are quite welcome for ergonomic and work-organizational reasons.
Es ist daher die Aufgabe der Erfindung, einen Stuhl- fuß, insbesondere für einen Hochstuhl, anzugeben, der rollbar oder gleitbar ist, wenn jemand auf dem mit diesem Fuß ausgestatteten Stuhl sitzt und wenn der Stuhl unbesetzt ist. Gleichzeitig soll der Stuhl jedoch während des Besteigens gebremst werden.It is therefore the object of the invention to provide a chair foot, in particular for a high chair, which is rollable or slidable when someone is sitting on the chair equipped with this foot and when the chair is vacant. At the same time, however, the chair should be braked while climbing.
Diese Aufgabe wird gelöst durch den Stuhlfuß nach Anspruch 1 sowie den Hochstuhl nach Anspruch 15. Die abhängigen Ansprüche geben vorteilhafte Weiterbildungen des erfindungsgemäßen Stuhlfußes an.This object is achieved by the chair foot according to claim 1 and the high chair according to claim 15. The dependent claims indicate advantageous developments of the chair foot according to the invention.
Der erfindungsgemäße Stuhlfuß weist zunächst eine Standvorrichtung auf, mit welcher er auf eine Stand- fläche, beispielsweise den Boden, stellbar ist. Damit der Stuhlfuß rollbar oder gleitbar ist, weist die Standvorrichtung dort, wo sie mit der Standfläche in Kontakt ist, zumindest drei Rollen oder Gleiter auf. Mit Rollen ist also der Stuhlfuß über die Standfläche rollbar, mit Gleitern ist er gleitbar. Für den Ein- satz auf Teppichboden sind Stuhlgleiter bevorzugt.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. In order for the chair foot is rollable or slidable, 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 carpeted floors.
Der erfindungsgemäße Stuhlfuß weist weiter eine Sitz- halterung auf, an welcher ein Stuhlsitz anbringbar ist. Eine solche Sitzhalterung kann beispielsweise eine Säule sein, die zwischen der Standvorrichtung und einem Sitz angeordnet ist. Eine solche Sitzhalterung kann mit den bei Bürostühlen üblichen Vorrichtungen, wie z.B. einer Vorrichtung zur Höhenverstell- barkeit, einer Federung und/oder Dämpfung, sowie ver- schiedenen Schwenk-, Kipp- und Drehmöglichkeiten ausgestattet sein.The chair foot according to the invention further has a seat holder on which a chair seat can be attached. Such a seat holder may for example be a pillar which is arranged between the stand device and a seat. Such a seat support can be used with the usual in office chairs devices such. a device for Höhenverstell- ability, suspension and / or damping, as well as various pivoting, tilting and rotating options be equipped.
Wesentlich für die vorliegende Erfindung ist nun, dass der Stuhlfuß außerdem eine Bremsvorrichtung auf- weist, mit welcher der Stuhl während des Besteigens bremsbar ist. Anders als im Stand der Technik soll jedoch die Bremswirkung vom Belastungszustand des Stuhlsitzes, der Sitzhalterung oder der Standvorrichtung unabhängig sein. Erfindungsgemäß weist die Bremsvorrichtung daher zumindest einen Stopper sowie zumindest eine Betätigungsvorrichtung auf, mit welcher der Stopper gegen die Standfläche drückbar ist. Bei dem Stopper kann es sich um ein beliebiges Element handeln, welches geeignet ist, beispielsweise durch Reibungskraft in Kontakt mit der Standfläche, eine Verschiebung des Stuhlfußes in einer zur Standfläche parallelen Richtung zur verhindern. Die Betätigungsvorrichtung kann dabei mit dem Stopper in kraft- und/oder Stoffschlüssiger Verbindung stehen, sie kann jedoch auch indirekt mit dem Stopper verbunden sein, beispielsweise über mechanische, hydrauli- sehe, pneumatische oder elektrische Mechanismen, die bei Betätigung der Betätigungsvorrichtung den Stopper in Richtung der Standfläche drücken. Um die Betätigung der Bremsvorrichtung unabhängig von einer Belas- tung des Stuhles zu ermöglichen, ist die Betätigungsvorrichtung gegenüber der Sitzhalterung und/oder der Standvorrichtung und/oder einem Sitz beweglich. Die Betätigungsvorrichtung ist vorzugsweise ein von der Standvorrichtung, der Sitzhalterung und/oder dem Sitz verschiedenes und/oder unabhängiges Element. Die relative Beweglichkeit ist vorzugsweise so ausgestaltet, dass sie auch im Falle starrer Standvorrichtung, Sitzhalterung bzw. Sitzes beweglich ist.Essential for the present invention is now that the chair foot also has a braking device up, with which the chair is braked while climbing. Unlike in the prior art, however, the braking effect should be independent of the loading condition of the chair seat, the seat holder or the stand device. According to the invention, 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 actuating device can be connected to the stopper in a non-positive and / or cohesive connection, but it can also be connected indirectly to the stopper, for example via mechanical, hydraulic, or mechanical means. see, pneumatic or electrical mechanisms that press the stopper in the direction of the base surface upon actuation of the actuator. In order to enable the actuation of the braking device independently of a load on the chair, the actuating device is movable relative to the seat holder and / or the standing device and / or a seat. 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.
Es ist bevorzugt, wenn der Stuhlfuß zumindest einIt is preferred if the stool foot at least one
Rückstellelement aufweist, welches so angeordnet ist, dass es den Stopper bei entlasteter Betätigungsvorrichtung von der Standfläche entfernt und in einen Ausgangszustand zurückstellt. Durch dieses Rückstell- element wird erreicht, dass die Bremsvorrichtung beiResetting element which is arranged so that it removes the stopper with unloaded actuator from the base and resets to an initial state. This restoring element ensures that the braking device is at
Nichtbelastung der Betätigungsvorrichtung ohne zusätzlichen Kraftaufwand in eine nicht bremsende Ausgangsposition zurückgestellt wird. Es können jedoch zusätzlich zu dem Rückstellelement auch Arretierungs- möglichkeiten vorgesehen sein, die den Stopper entgegen der Kraft des Rückstellelementes in Kontakt mit der Standfläche halten, auch wenn das Betätigungselement nicht betätigt wird oder entlastet ist. Als Rückstellelement kommen insbesondere Federn, elektri- sehe Einrichtungen und/oder hydraulische und/oder pneumatische Zylinder in Frage.No load of the actuator is reset without additional effort in a non-braking starting position. However, it can also be provided in addition to the return element Arretierungs- opportunities 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. As a restoring element in particular springs, electrical see devices and / or hydraulic and / or pneumatic cylinders in question.
Der erfindungsgemäße Stuhlfuß kommt vorzugsweise in Stühlen zum Einsatz, die wie herkömmliche Bürostühle oder Hochstühle aufgebaut sind. In diesem Falle ist die Standvorrichtung ein Fußkreuz mit zumindest drei, vorzugsweise fünf, Armen, die an ihrem einen Ende an eine senkrecht zur Standfläche stehende Säule angebracht sind, und an ihren anderen Enden je eine Rolle oder einen Gleiter aufweisen. Die von der Säule aus gesehenen Winkel zwischen zwei benachbarten Armen sind hierbei vorzugsweise jeweils gleich, so dass eine größtmögliche Standsicherheit gewährleistet wird. Die genannte Säule dient hierbei als Sitzhalte- rung, an deren oberen Ende der Sitz angeordnet sein kann.The chair foot according to the invention is preferably used in chairs which are constructed like conventional office chairs or high chairs. In this case, 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 which the seat can be arranged.
Die Betätigungsvorrichtung ist vorteilhafterweise um die Sitzhalterung herum angeordnet, so dass sie bei drehbaren Sitzen in jeder Stellung des Sitzes glei- chermaßen gut bedienbar ist. Sie ist hierbei vorzugsweise ringförmig und/oder flächig ausgeführt. Besonders vorteilhaft ist es, wenn sie in einer Höhe angeordnet ist, in der sie als Besteighilfe dienen kann. Dies ist insbesondere bei Hochstühlen von Nutzen. Insbesondere kann die so ausgestaltete Betätigungs- vorrichtung mit der bei Hochstühlen obligatorischen Aufstiegshilfe bzw. FußaufStandsfläche identisch sein. Auf diese Weise wird die Bremsvorrichtung beim Besteigen des Stuhles durch das Körpergewicht des Nutzers automatisch betätigt. Hat der Nutzer denThe actuating device is advantageously arranged around the seat holder, so that it is equally easy to operate with rotatable seats in every 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. In particular, the actuating device designed in this way can be identical to the climbing aid or footrest surface required for highchairs. In this way, the braking device is automatically actuated when climbing the chair by the body weight of the user. Does the user have the
Stuhl bestiegen und die Betätigungsvorrichtung entlastet, löst die Bremsvorrichtung den Stuhl, so dass er frei verschiebbar ist. Die Aufhebung der Feststellfunktion kann für gewisse Anwendungen zeitverzö- gert erfolgen.Climbing chair and relieves the actuator, the brake device releases the chair, so that it is freely movable. The deactivation of the locking function can be delayed for certain applications.
Der Stopper ist vorzugsweise ein flächiger, im Wesentlichen tellerförmiger Feststellstempel, der mittig unter der Sitzhalterung angeordnet ist. Er kann auch ein voluminöses Element sein, dass abgeflacht ist um eine möglichst große Knotaktfläche zu erzie- len. Seine Ausdehnung in Richtung parallel zur Standfläche ist vorzugsweise kleiner als der Abstand der Rollen bzw. Gleiter zueinander, so dass der Stempel zwischen den Rollen bzw. Gleitern angeordnet sein kann. Jene Fläche des Stoppers, mit welcher er im betätigten Zustand mit der Standfläche in Kontakt ist, ist vorzugsweise mit einem Material mit hohem Reibwert ausgestattet. Bei Verwendung von Gleitern sollte der Reibwert des Stoppers größer sein als jener des Gleiters. Solche Materialien können z.B. Hartgummi, PVC oder diverse Metallbleche (auch geriffelt) sein.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 in order to create as large a knotaktfläche as possible. len. 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).
Es ist insbesondere für die Anwendung in Hochstühlen bevorzugt, wenn der Stopper im unbetätigten Zustand nur einen kleinen Abstand von der Standfläche hat.It is particularly preferred for use in high chairs, when the stopper in the unactuated state has only a small distance from the floor space.
Hierdurch wird ein Besteigen des Stuhles möglich, ohne dass die als Aufstiegshilfe dienende Betätigungsvorrichtung zu sehr nachgibt .As a result, a climbing of the chair is possible without the serving as a climbing aid actuator gives way too much.
Die Betätigungsvorrichtung und der Stopper können auf verschiedenste Weise miteinander verbunden sein. In Frage kommen z.B. Stangen, die parallel zur Sitzhal- terung verlaufen. Möglich ist auch ein die Sitzhaite- rung zumindest bereichsweise und/oder auf einem Teil ihrer Länge umgebendes Rohr, welches gegebenenfalls so ausgeschnitten sein kann, dass es an der Standvorrichtung vorbei bewegbar ist. Es sind aber auch indirekte Mechanismen, beispielsweise hydraulische, pneumatische und/oder elektrische Kraftübertragungsmecha- nismen, denkbar.The actuator and the stopper may be interconnected in a variety of ways. For example, Rods that run parallel to the seat holder. Also possible is a tube surrounding the seat at least regionally and / or surrounding part of its length, which optionally can be cut out so that it can be moved past the standing device. But there are also indirect mechanisms, such as hydraulic, pneumatic and / or electrical Kraftübertragungsmecha- mechanisms conceivable.
Das genannte Rückstellelement ist besonders bevorzugt eine Feder, welche die Standvorrichtung umgibt und zwischen der Verbindungsvorrichtung, welche Betäti- gungsvorrichtung und Stopper verbindet und der Standvorrichtung oder einem Vorstand der Sitzhalterung an- geordnet ist. Bei Belastung der Betätigungsvorrichtung und damit Bewegung der Bremsvorrichtung in Richtung der Standfläche wird diese Feder dann gestaucht oder gedehnt .The said restoring element is particularly preferably a spring, which surrounds the standing device and connects between the connecting device, which connects the actuating device and stopper, and the standing device or a board of the seat mount. is ordered. When loading the actuator and thus movement of the brake device in the direction of the base, this spring is then compressed or stretched.
Besonders bevorzugt ist, wenn die Verbindung zwischen der Betätigungsvorrichtung und dem Stopper ein Führungselement, d.h. Buchse, aufweist, das gegenüber der Standvorrichtung und/oder der Sitzhalterung in Längsrichtung verschiebbar ist. Das Querspiel zwischen der Stuhlsäule und dem Führungselernent ist vorzugsweise gering bemessen, so dass die auf die FußaufStandsfläche bzw. die Betätigungsvorrichtung wirkenden Kräfte zuverlässig in den Stopper und die Standvorrichtung übertragen werden. Hierdurch wird ein Kippen des Stuhls auch bei ungünstiger Krafteinleitung in die FußaufStandsfläche bzw. Betätigungs- vorrichtung verhindert (d.h. das Kippmaß bestimmt sich nach dem Durchmesser der Standvorrichtung bzw. des Fußkreuzes) . Ein Verdrehen des Führungselementes gegenüber der Stuhlsäule wird verhindert.It is particularly preferred if the 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 small, so that the forces acting on the footrest surface or the actuating device are reliably transmitted to the stopper and the standing device. As a result, tilting of the chair is prevented even in the case of an unfavorable introduction of force into the footrest surface or actuating device (that is, the amount of tilting is determined by the diameter of the base device or of the base of the foot). A rotation of the guide element relative to the chair column is prevented.
Im Folgenden soll der erfindungsgemäße Stuhlfuß anhand von Figuren beispielhaft erläutert werden.In the following, the chair foot according to the invention will be explained by way of example with reference to figures.
Es zeigtIt shows
Figur 1 einen herkömmlichen Hochstuhl undFigure 1 is a conventional high chair and
Figur 2 einen Stuhlfuß gemäß der vorliegenden Erfindung.Figure 2 shows a chair foot according to the present invention.
Figur 1 zeigt einen herkömmlichen Hochstuhl. Dieser Hochstuhl weist einen Sitz 5 auf, der auf einer säu- lenförmigen Sitzhalterung 4 drehbar angeordnet ist. Die säulenförmige Sitzhalterung 4 steht auf einer Standvorrichtung, die hier fünf Arme 7a, 7b, 7c aufweist, die unter der Säule 4 in gleichen Winkeln zusammen laufen. An den von der Säule 4 entfernten Enden weisen die Arme 7a, 7b, 7c jeweils eine Rolle 2a, 2b, 2c auf, auf welchen der Stuhl rollbar ist. DerFIG. 1 shows a conventional highchair. This high chair has a seat 5, which is rotatably mounted on a pillar-shaped 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. At the ends remote from the column 4, the arms 7a, 7b, 7c each have a roller 2a, 2b, 2c on which the chair is rollable. Of the
Hochstuhl weist darüber hinaus eine Aufstiegshilfe 3 auf, die auch als FußaufStandsfläche 3 dient. Im gezeigten Beispiel ist die Aufstiegshilfe 3 ringförmig um die Standsäule 4 angeordnet und über Streben mit dieser Säule im Zentrum verbunden. Die Aufstiegshilfe 3 ist in einer Höhe angeordnet, so dass ein auf dem Sitz 5 sitzender Nutzer die Aufstiegshilfe 3 mit seinen Füßen erreicht.High chair also has a climbing aid 3, which also serves as FußaufStandsfläche 3. In the example shown, 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.
Figur 2 zeigt nun einen erfindungsgemäßen Stuhlfuß. Dieser Stuhlfuß weist zunächst eine Standvorrichtung 7 auf, welche zumindest drei Arme 7a, 7b, 7c hat. Die Arme 7a, 7b sind mit ihrem einen Ende an einer säulenförmigen Sitzhalterung 4 befestigt und weisen an ihrem anderen Ende jeweils eine Rolle 2a, 2b auf, mit welcher die Standvorrichtung 7 auf einer Standfläche 11 steht.FIG. 2 now shows a chair 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.
Der erfindungsgemäße Stuhlfuß weist darüber hinaus eine Betätigungsvorrichtung 3 auf, welche gleichzeitig als Aufstiegshilfe 3 und FußaufStandsfläche 3 dient. Diese Betätigungsvorrichtung 3 ist über parallel zur säulenförmigen Sitzhalterung 4 verlaufende Führungselemente 8 mit dem Stopper 9 verbunden. Die Aufstiegshilfe 3, die Führungselemente 8 sowie der Stopper 9 bilden im gezeigten Beispiel zusammen die Bremsvorrichtung. Die Bremsvorrichtung ist hier in Richtung parallel zur Achse der Säule 4 beweglich, so dass bei Belastung der FußaufStandsfläche 3 der Stop- per 9 gegen die Standfläche 11 drückbar ist. Zur Verbesserung der Standsicherheit weist im gezeigten Bei- spiel die Kontaktfläche 10 des Stoppers 9 mit der Standfläche 11 ein Material mit besonders hohem Reibwert auf. Zwischen den Armen 7a, 7b der Standvorrichtung 7 und einem senkrecht zur Achse der Säule 4 ste- henden Vorstand der Verbindungselemente 8 ist eine die Sitzsäule 4 umlaufende Feder 6 angeordnet, welche komprimiert wird, wenn die Bremsvorrichtung bei Belastung der Aufstiegshilfe 3 in Richtung der Standfläche 11 gedrückt wird. Wird die Aufstiegshilfe 3 entlastet, so drückt die Feder 6 die Bremsvorrichtung in Richtung von der Standfläche 11 weg, so dass der Stempel 9 von der Standfläche 11 beabstandet ist. The chair foot according to the invention also has an actuating device 3, which simultaneously serves as a climbing aid 3 and FußaufStandsfläche 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 here movable in the direction parallel to the axis of the column 4, so that when the footrest surface 3 is loaded, the stopper 9 can be pressed against the standing surface 11. To improve the stability, the example shown play the contact surface 10 of the stopper 9 with the base 11 on a material with a particularly high coefficient of friction. Between the arms 7a, 7b of the standing device 7 and a perpendicular to the axis of the pillar 4-standing board of the connecting elements 8, a seat column 4 encircling spring 6 is arranged, which is compressed when the brake device under load the climbing aid 3 in the direction of the base 11 is pressed. 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.

Claims

Patentansprüche claims
1 . Stuhlfuß mit einer Standvorrichtung, welche zumindest drei Rollen oder Gleiter aufweist und mit welcher der Stuhlfuß über die zumindest drei Rollen oder Gleiter auf eine Standfläche stellbar ist, einer Sitzhalterung, an welcher ein Stuhlsitz anbringbar ist, und einer Bremsvorrichtung, welche zumindest einen Stopper und eine gegenüber der Sitzhalterung be- wegliche Betätigungsvorrichtung aufweist, wobei der Stopper mittels der Betätigungsvorrichtung gegen die Standfläche drückbar ist.1 . Stool with a stand device, which has at least three rollers or sliders and with which the chair foot over the at least three rollers or sliders on a standing surface is adjustable, a seat support to which a chair seat is attachable, and a braking device, which at least one stopper and a relative to the seat holder movable actuating device, wherein the stopper is pressed by means of the actuating device against the base surface.
2. Stuhlfuß nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass der Stuhlfuß zumin- dest ein Rückstellelement aufweist, welches so angeordnet ist, dass es eine den Stopper von der Standfläche entfernende Kraft auf die Bremsvorrichtung ausübt .2. Chair foot according to the preceding claim, characterized in that the chair foot has at least one restoring element, which is arranged so that it exerts a stopper from the footprint removing force on the brake device.
3. Stuhlfuß nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Rückstellelement eine Feder, ein elektrisches, ein pneumatisches und/oder ein hydraulisches Element aufweist .3. chair foot according to the preceding claim, characterized in that the restoring element comprises a spring, an electric, a pneumatic and / or a hydraulic element.
4. Stuhlfuß nach einem der vorhergehenden Ansprü- che, dadurch gekennzeichnet, dass die Betätigungsvorrichtung und der zumindest eine Stopper kraft- und/oder stoffschlüssig miteinander verbunden sind.4. Chair foot according to one of the preceding claims, characterized in that the actuating device and the at least one stopper force and / or materially connected to one another.
5. Stuhlfuß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Betätigungsvorrichtung und der Stopper über eine Verbindungs- vorrichtung miteinander verbunden sind.5. Chair foot according to one of the preceding claims, characterized in that the actuating device and the stopper are connected to each other via a connection device.
6. Stuhlfuß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Betätigungsvorrichtung und der Stopper über mechanische, hydraulische, pneumatische und/oder elektrische E- lemente miteinander verbunden sind.6. chair foot according to one of the preceding claims, characterized in that the actuating device and the stopper are connected to each other via mechanical, hydraulic, pneumatic and / or electrical E-.
7. Stuhlfuß nach einem der Ansprüche 5 oder 6, da- durch gekennzeichnet, dass das zumindest eine7. Chair foot according to one of claims 5 or 6, character- ized in that the at least one
Rückstellelement zwischen der Verbindungsvorrichtung und der Standvorrichtung oder zwischen der Verbindungsvorrichtung und der Sitzhalterung angeordnet ist .Resetting element between the connecting device and the stand device or between the connecting device and the seat bracket is arranged.
8. Stuhlfuß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Betätigungsvorrichtung die Standvorrichtung und/oder die Sitzhalterung zumindest teilweise umläuft.8. chair foot according to one of the preceding claims, characterized in that the actuating device, the stand device and / or the seat holder at least partially rotates.
9. Stuhlfuß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Betätigungsvorrichtung ein ringförmig geschlossenes Element, eine kreisförmige Fläche und/oder eine kreis- ringförmige Fläche aufweist.9. chair foot according to one of the preceding claims, characterized in that the actuating device has an annularly closed element, a circular surface and / or a circular ring-shaped surface.
10. Stuhlfuß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Stopper an einer Seite, mit welcher er gegen die Standfläche drückbar ist, abgeflacht ist, um eine möglichst große Kontaktfläche zu erzielen.10. Chair foot according to one of the preceding claims, characterized in that the stopper is flattened on one side, with which it can be pressed against the base surface, in order to achieve the largest possible contact surface.
11. Stuhlfuß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Standvorrichtung ein Fußkreuz aufweist oder ist, welches zumindest drei, vorzugsweise gleich lange, Arme aufweist, die jeweils mit ihrem einen Ende mit einer Säule als Sitzhalterung verbunden sind und an deren anderen Ende jeweils eine der Rollen angeordnet ist.11. Chair foot according to one of the preceding claims, characterized in that the stand device has or is a base, which has at least three, preferably equal length, arms which are each connected at one end to a column as a seat holder and at the other end each one of the rollers is arranged.
12. Stuhlfuß nach einem der vorhergehenden Ansprü- che, dadurch gekennzeichnet, dass der Stopper innerhalb des von den Rollen oder Gleitern als Eckpunkte aufgespannten Bereiches angeordnet ist.12. Chair foot according to one of the preceding claims, characterized in that the stopper is arranged within the area spanned by the rollers or sliders as vertices.
13. Stuhlfuß nach einem der vorhergehenden Ansprü- che, dadurch gekennzeichnet, dass die Betätigungsvorrichtung als Aufstiegshilfe verwendbar ist und so angeordnet ist, dass die Betätigungsvorrichtung beim Besteigen eines Stuhles, dessen Fuß der Stuhlfuß ist, betätigt wird.13. Chair foot according to one of the preceding claims, characterized in that the actuating device can be used as a climbing aid and is arranged so that the actuating device when climbing a chair whose foot is the chair foot is actuated.
14. Stuhlfuß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bremsvorrichtung so arretierbar ist, dass der Stopper bei Entlastung der Betätigungsvorrichtung auf die14. Chair foot according to one of the preceding claims, characterized in that the braking device can be locked so that the stopper upon discharge of the actuating device on the
Standfläche gedrückt bleibt.Stand surface remains pressed.
15. Stuhlfuß nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Standvorrichtung ein Fußkreuz mit zumindest drei Armen, an deren Ende jeweils eine Rolle oder ein Gleiter angeordnet ist, aufweist, wobei die jeweils an- deren Enden der Arme mit einer senkrecht zur15. Stool foot according to one of the preceding claims, characterized in that the stand device has a base with at least three arms, at the end of each of which a roller or a slider is arranged, wherein the respective other ends of the arms with a perpendicular to
Standfläche stehenden Säule als Sitzhalterung verbunden sind, und wobei die Bremsvorrichtung eine die Säule umlaufende und/oder kreisförmige Betätigungsvorrich- tung und einen unter dem Fußkreuz zwischen den Rollen angeordneten Stempel als Stopper aufweist, wobei die Betätigungsvorrichtung und der Stopper durch ein die Säule auf zumindest einem Teil ihrer Länge umgebendes Führungselement miteinander verbunden sind, und wobei eine Schraubenfeder als Rückstellelement mit zur Säule paralleler Schraubenachse zwischen der Säule und dem Führungselement so angeordnet ist, dass die Schrau- benfeder bei Belastung der Betätigungsvorrichtung mit einer in Richtung des Fußkreuzes gerichteten Kraft auslenkbar ist.Standing pillar are connected as a seat support, and wherein the braking device comprises a column rotating and / or circular Betätigungsvorrich- device and arranged under the base between the rollers punch as a stopper, wherein the actuating device and the stopper by a column on at least one Part of its length surrounding guide member are connected to each other, and wherein a coil spring is arranged as a return element to the column parallel screw axis between the column and the guide member so that the screw spring is deflected under load of the actuator with a force directed in the direction of the base.
16. Stuhl mit einem Stuhlfuß nach einem der vorhergehenden Ansprüche und einem an der Sitzhalte- rung angeordneten Sitz. 16. Chair with a chair foot according to one of the preceding claims and a seat arranged on the seat holder seat.
EP09710471A 2008-02-15 2009-02-13 Chair base with anti-roll device Not-in-force EP2244606B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008009413A DE102008009413A1 (en) 2008-02-15 2008-02-15 Chair foot with roll lock
PCT/EP2009/001029 WO2009100926A1 (en) 2008-02-15 2009-02-13 Chair base with anti-roll device

Publications (2)

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

Family

ID=40497630

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EP09710471A Not-in-force EP2244606B1 (en) 2008-02-15 2009-02-13 Chair base with anti-roll device

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EP (1) EP2244606B1 (en)
AT (1) ATE523110T1 (en)
DE (1) DE102008009413A1 (en)
DK (1) DK2244606T3 (en)
WO (1) WO2009100926A1 (en)

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NL1037497C2 (en) * 2009-11-25 2011-05-26 Gerardus Johannes Maria Pikker CHAIR.
WO2011137922A1 (en) 2010-05-03 2011-11-10 Merck Patent Gmbh Formulations and electronic devices
DE102013016136A1 (en) 2013-09-27 2015-04-02 Peter Peters Footrest for a chair
GB2524961A (en) * 2014-04-07 2015-10-14 Alan Edmond Glaser eLift400-movement lock with chair seat rotation
DE102015206766A1 (en) 2015-04-15 2016-10-20 Sedus Stoll Ag Permanently braked roller device for a seat, reclining and / or transport furniture, and a seat, reclining and / or transport furniture
EP3311703A1 (en) * 2016-10-24 2018-04-25 Stabilus GmbH Actuating device for operating a brake and mobile unit, in particular a chair
CN111616536A (en) * 2020-05-07 2020-09-04 恒林家居股份有限公司 Chair and rocking chair leg thereof
DE102021210905A1 (en) 2021-09-29 2023-03-30 Sedus Stoll Aktiengesellschaft Chair, especially high chair, with two states

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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 (en) * 1989-10-10 1991-04-18 Manuel Dr Menzel Dentist's chair with tilting seat - has seat locked in position so that it slopes downwards from rear edge
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Publication number Publication date
ATE523110T1 (en) 2011-09-15
EP2244606B1 (en) 2011-09-07
DE102008009413A1 (en) 2009-08-20
DK2244606T3 (en) 2011-12-12
WO2009100926A1 (en) 2009-08-20

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