EP0882415B1 - Pieds ajustables en hauteur pour supporter un dessus de table, de bureau ou un plan de travail - Google Patents

Pieds ajustables en hauteur pour supporter un dessus de table, de bureau ou un plan de travail Download PDF

Info

Publication number
EP0882415B1
EP0882415B1 EP98201827A EP98201827A EP0882415B1 EP 0882415 B1 EP0882415 B1 EP 0882415B1 EP 98201827 A EP98201827 A EP 98201827A EP 98201827 A EP98201827 A EP 98201827A EP 0882415 B1 EP0882415 B1 EP 0882415B1
Authority
EP
European Patent Office
Prior art keywords
legs
leg
rotations
screw shaft
height
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.)
Expired - Lifetime
Application number
EP98201827A
Other languages
German (de)
English (en)
Other versions
EP0882415A1 (fr
Inventor
Willem Steenstra
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.)
Koninklijke Ahrend NV
Original Assignee
Koninklijke Ahrend NV
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 Koninklijke Ahrend NV filed Critical Koninklijke Ahrend NV
Publication of EP0882415A1 publication Critical patent/EP0882415A1/fr
Application granted granted Critical
Publication of EP0882415B1 publication Critical patent/EP0882415B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor
    • A47B2200/0058—Leg adjustment with a motor, e.g. an electric motor with synchronized motors

Definitions

  • the invention relates to legs adjustable in height for supporting table tops, desk tops or work tops being supported by at least two of such legs, each leg being provided with an assembly of screw shaft and nut, said shaft extending substantially in longitudinal direction of said leg, the screw shaft and nut being coupled to portions of the legs slidable relative to each other, or to a portion of said leg and the top supported by it, in such a way that on rotating the screw shaft, the leg portions can be moved relative to each other and where each leg comprises a hollow column incorporating an electric motor extending substantially in longitudinal direction, said electric motor driving the screw shaft in longitudinal direction within the column by means of a transmission, see EP-A-0 685 185.
  • Such desk and work tops are applied on an increasingly large scale since it is desirable that a person working at a desk or the like assumes a proper sitting position. A wrong position may cause physical complaints. Furthermore, in modern offices a desk is used by various persons, so that a desk can not be adjusted to one specific person.
  • the top is supported by at least two legs, it is desirable that there is a coupling between the adjusting mechanisms of both legs. Then it can be provided for that the top remains in its horizontale position while adjusting it. Usually this is realized by mechanical transmissions through rotary shafts. However, such a coupling takes up a certain amount of space. This can be disturbing for e.g. legroom and cabinet space and therefore the well-known supporting structures do not have an attractive appearance and defects may arise when the height adjustment of the legs does not take place synchronously. This may occur e.g. by the fact that one leg experiences a greater load than the other, since the supported top locally holds more apparatus.
  • the object of the invention is to remove these difficulties and to that end provides for that the motors of the legs being electronically coupled and electronic means being present for counting the number of rotations each of the screw shafts performs per unit of time and for mutually comparing the numbers of rotations of the screw shafts, the electronic means providing for relative adjustment of the speeds of the motors, in such a way that the number of rotations performed by each of the screw shafts per unit of time is substantially equal.
  • This electronic coupling also achieves that the legs can be arranged at any desired position, which offers a large degree of freedom in the configuration to be realized.
  • the number of rotations per unit of time of the screw shafts in the leg or legs is kept equal to the number of rotations of the screw shaft performing the smallest number of rotations.
  • the height of the top in a certain moment can be indicated on a display.
  • the user can adjust the top directly to the desired height.
  • the leg 1 illustrated in the drawing consists of a horizontally positioned transverse beam 2 being provided with supports 3 by which it can bear on the ground.
  • the beam 2 is connected to a baseplate 6 mounted in the lower end of a hollow column 5 by means of bolts 4.
  • a column 7 is telescopically slidable in the column 5.
  • the column 7 is connected to an uppermost transverse beam 8 on which a table top 9 can be mounted, which is also supported by a corresponding leg 1 not illustrated. Possibly, parts of the legs can be connected for obtaining a greater stiffness of the whole.
  • a pipe 10 being provided with a nut 11 at its upper end is mounted on the baseplate 6.
  • a screw shaft 12 extends through the nut 11 and can be driven, through a reduction gear unit 13, by an electric motor 14 fixedly mounted in the column 7.

Landscapes

  • Tables And Desks Characterized By Structural Shape (AREA)

Claims (3)

  1. Pieds (1) réglables en hauteur pour supporter un plateau de table, un plateau de bureau ou un plateau de travail (9) supporté par au moins deux de tels pieds, chaque pied (1) étant pourvu d'un ensemble formé d'une tige filetée (12) et d'un écrou (11), ladite tige s'étendant essentiellement dans une direction longitudinale dudit pied (1), la tige filetée (12) et l'écrou (11) étant couplés à des parties (5, 7) des pieds (1), qui peuvent glisser l'une par rapport à l'autre, ou à une partie dudit pied (1) et de la partie supérieure du plateau (9) supporté par ce pied, de telle sorte que lors de la rotation de la tige filetée (12), les parties des pieds peuvent être déplacées l'une par rapport à l'autre, chaque pied (1) comprenant une colonne commune (5, 7) incorporant un moteur électrique (14) et s'étendant essentiellement dans la direction longitudinale, ledit moteur électrique entraínant la tige filetée (12) dans une direction longitudinale à l'intérieur de la colonne (5,7) à l'aide d'une transmission, caractérisés en ce que les moteurs (14) des pieds (1) sont couplés électroniquement, et des moyens électroniques étant présents pour compter le nombre de rotations exécutés par chacune des tiges filetées (12) par unité de temps et pour comparer entre eux les nombres de rotations des tiges filetées (12), les moyens électroniques permettant un ajustement relatif des vitesses du moteur (14) de telle sorte que le nombre de rotations exécutées par chacune des tiges filetées (12) par unité de temps est sensiblement le même.
  2. Pieds selon la revendication 1, caractérisés en ce que le nombre de rotations par unité de temps de la tige filetée (12) dans le ou les pieds (1) est maintenu égal au nombre de rotations de la tige filetée (12) exécutant le plus petit nombre de rotation.
  3. Pieds selon la revendication 1 ou 2, caractérisés en ce que la hauteur du plateau (9) à un certain moment est indiquée sur un dispositif d'affichage, à l'aide des moyens électroniques.
EP98201827A 1997-06-04 1998-06-02 Pieds ajustables en hauteur pour supporter un dessus de table, de bureau ou un plan de travail Expired - Lifetime EP0882415B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1006222 1997-06-04
NL1006222A NL1006222C2 (nl) 1997-06-04 1997-06-04 In hoogte verstelbare poten dienende voor het ondersteunen van een tafel-, bureau- of werkblad.

Publications (2)

Publication Number Publication Date
EP0882415A1 EP0882415A1 (fr) 1998-12-09
EP0882415B1 true EP0882415B1 (fr) 2002-09-04

Family

ID=19765093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98201827A Expired - Lifetime EP0882415B1 (fr) 1997-06-04 1998-06-02 Pieds ajustables en hauteur pour supporter un dessus de table, de bureau ou un plan de travail

Country Status (3)

Country Link
EP (1) EP0882415B1 (fr)
DE (1) DE69807581T2 (fr)
NL (1) NL1006222C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202004017946U1 (de) * 2004-11-18 2006-03-23 Dewert Antriebs- Und Systemtechnik Gmbh & Co. Kg Möbel
JP4335284B2 (ja) * 2005-03-19 2009-09-30 デュオバック コリア カンパニー リミテッド 高低調節可能テーブル
DE202006007006U1 (de) * 2006-04-24 2006-07-06 Kesseböhmer Produktions GmbH & Co. KG Höhenverstellbares Möbelbein

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846223C2 (de) * 1978-10-24 1982-08-26 Veyhl-Produktion KG, 7266 Neuweiler Arbeitstisch
WO1989010077A1 (fr) * 1988-04-18 1989-11-02 Kearney Deborah S Poste de travail adaptable
US5224429A (en) * 1991-04-17 1993-07-06 Haworth, Inc. Height adjustable table
DE4417337A1 (de) * 1994-05-18 1995-11-23 Stoll Kg Christof Tisch mit beweglicher Platte
DE29701611U1 (de) * 1997-01-31 1997-04-03 Berbuer, Jürgen, Dr., 52074 Aachen Antrieb zur Verstellung von Bauteilen eines Möbelstücks

Also Published As

Publication number Publication date
EP0882415A1 (fr) 1998-12-09
NL1006222C2 (nl) 1998-12-07
DE69807581T2 (de) 2003-05-22
DE69807581D1 (de) 2002-10-10

Similar Documents

Publication Publication Date Title
EP1994855B1 (fr) Système de poste de travail et poste de travail doté de multiples plans de travail à hauteur réglable
US7487690B2 (en) Elevating mechanism for furniture
US6148741A (en) Table with adjustable table top portions
US8056489B2 (en) Telescopic column, especially for height adjustable tables
EP1941978A3 (fr) Barre mobile pour machine-outil
US6024025A (en) Table lift mechanism
EP0732068A3 (fr) Système de réglage en hauteur pour bureau ou station de travail
CA2046406A1 (fr) Plan de travail a reglage vertical automatique
US5996961A (en) Height-adjustable workstand support
US5483903A (en) Table
EP0882415B1 (fr) Pieds ajustables en hauteur pour supporter un dessus de table, de bureau ou un plan de travail
EP0685185A3 (fr) Table à plateau mobile.
GB2154442A (en) Support unit
JPH08122222A (ja) 製品性能試験機
EP0426031A1 (fr) Machine à coudre industrielle, sa table support et sa pédale de commande
US4126096A (en) System of support legs for a table, a seat or like object resting upon the floor by means of a set of legs
US5423502A (en) Apparatus for positioning a sewing work station and method of using same
GR3018300T3 (en) Leg structure.
CN2238114Y (zh) 可收合及调整台面偏摆角度的工作台
US6250594B1 (en) Device for height adjustment of panels
GB2213711A (en) Computer equipment combination stand
CN220851500U (zh) 一种便于调节的信息展示装置
JPH07240890A (ja) 回転式キャビネット及びキャビネット回転装置
NL1008165C2 (nl) Aandrijving voor het verstellen van bouwdelen van een meubelstuk.
JPH07301016A (ja) 可動式舞台装置

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): BE DE GB NL

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990420

AKX Designation fees paid

Free format text: BE DE GB NL

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 20020122

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): BE DE GB NL

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69807581

Country of ref document: DE

Date of ref document: 20021010

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030605

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20120413

Year of fee payment: 15

Ref country code: BE

Payment date: 20120413

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20120625

Year of fee payment: 15

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20120629

Year of fee payment: 15

BERE Be: lapsed

Owner name: KONINKLIJKE *AHREND N.V.

Effective date: 20130630

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20140101

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20130602

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 69807581

Country of ref document: DE

Effective date: 20140101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140101

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140101

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130602