WO2006043881A1 - Meuble verticalement reglable et procede permettant de relever et d'abaisser un meuble verticalement reglable. - Google Patents

Meuble verticalement reglable et procede permettant de relever et d'abaisser un meuble verticalement reglable. Download PDF

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Publication number
WO2006043881A1
WO2006043881A1 PCT/SE2005/001543 SE2005001543W WO2006043881A1 WO 2006043881 A1 WO2006043881 A1 WO 2006043881A1 SE 2005001543 W SE2005001543 W SE 2005001543W WO 2006043881 A1 WO2006043881 A1 WO 2006043881A1
Authority
WO
WIPO (PCT)
Prior art keywords
leg
master
legs
signal
vertically adjustable
Prior art date
Application number
PCT/SE2005/001543
Other languages
English (en)
Inventor
Bo Vikarby
Original Assignee
Östergrens Elmotor Ab
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 Östergrens Elmotor Ab filed Critical Östergrens Elmotor Ab
Publication of WO2006043881A1 publication Critical patent/WO2006043881A1/fr

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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
    • A47B9/00—Tables with tops of variable height
    • A47B9/20—Telescopic guides

Definitions

  • the present invention relates to a vertically adjustable furniture unit comprising at least two legs of variable length, a drive motor associated with each respective leg and means for realising and transmitting an input signal which indicates whether the furniture unit is to move upwards, downwards or to a calibration position.
  • the present invention also relates to a method of raising and lowering a vertically adjustable furniture unit with at least two legs of variable length, comprising the step that an input signal coming from outside indicates whether the furniture unit is to move upwards, downwards or to a calibration position.
  • Raisable and lowerable furniture has previously been known in art, in particular tables and chairs.
  • the reason for this is that it is important for ergonomic reasons to adapt the height of such furniture to suit the user, so that stress and repetitive strain injuries are avoided.
  • Such adjustability has often entailed that the height of a writing table and a writing table chair are adapted once and for all, but at the same rate as mobility and the possibility for work rotation at different work sites has increased, the need for daily adaptation of the workplace has also increased, possibly as much as several times a day. It also occurs that, for example, tables are manufactured so that they can be employed for both sitting and standing work.
  • the adaptation possibilities of the workplaces are increasing and demand has now begun to spread also to such workplaces as were not previously adaptable, for example alarm centres and rooms for process control.
  • Smaller furniture units may be provided with but a single extensible leg, for example of column type.
  • two or more legs are often required in order for the unit to be stable, for example a table with an elongate desk top.
  • the reason for this is that it is generally desirable that the upper surface of the furniture, typically a table top, remains substantially horizontal.
  • an excessively great difference in the length of the legs would entail that they "jam" and that the ongoing upward or downward movement is blocked. The object is therefore seemingly quite clear, but it has proved to be somewhat difficult to realise it in practice.
  • a manual raising or lowering of the legs is precluded in practice in continuous vertical adjustments, since it is either difficult for a single person to adjust the height of several legs at the same time or because it is difficult for two or more people to coordinate their efforts at vertical adjustment of each individual leg with a sufficient degree of accuracy. This may possibly function if the height of the furniture unit is adjustable only between a few, clearly defined positions.
  • the vertically adjustable furniture unit intimated by way of introduction is given the characterising features that one of the legs, referred to as the master leg, is rehearsed to receive the input signal and execute a movement in response thereto, that a communication conductor is provided for the exchange of information signals on the movements of the master leg and the remaining legs, and that the remaining legs are rehearsed to compare their own positions with the movement of the master leg and realise a corresponding movement in each respective leg.
  • the object according to the present invention will be attained if the method is characterised in that the input signal is received by one of the legs, designated the master leg, that a first control signal generates a movement in the master leg, that an information signal carrying information on the movement of the master leg is transmitted to the remaining legs, that a comparison is made in each leg between the position of the leg and the information signal, and that a second control signal is computed and generates a movement in each leg.
  • Fig. 1 is a perspective view obliquely from beneath of one exemplifying unit of furniture
  • Fig. 2 is a perspective view of a leg included in the furniture unit, partly cut away;
  • Fig. 3 is an exploded view corresponding to Fig. 2;
  • Fig. 4 is a detailed view of an upper section of a partly cut away leg.
  • Fig. 5 is a flow diagram of the control system in the vertically adjustable furniture unit.
  • Fig. 1 shows in perspective obliquely from beneath a table 1 which is an example of one such vertically adjustable furniture unit to which the present invention relates.
  • the table 1 could be any other optional type of furniture, for example an operating panel, a shelf or a cabinet.
  • the table 1 has two legs 2, 3 which each have an outer leg section 4 and an inner leg section 5 and each display a foot 6. Both of the legs 2, 3 each include a drive motor (not visible in Fig. 1) and, for power supply to these motors, there are provided at least one adaptor 7 and a cable 8 leading to at least one accumulator 9. hi the preferred embodiment, an accumulator 9 is disposed at each respective leg 2, 3 and must be supplied with current either through their mains connection 7 and 8 or in that one and the same mains connection supplies both accumulators 9. hi this regard, the connection to the left-hand accumulator in Fig. 1 has been omitted for purposes of clarity. The table 1 would per se still function with but a single accumulator 9, but its performance would be reduced in that a more limited lowering and/or raising can be carried out before the accumulator 9 needs to be recharged. 5 001543
  • a signal button 10 is connected via a signal conductor 11 to the one leg 2. From the signal button 10, the user gives signals to the leg 2 as to whether a raising or lowering of the table is desired depending upon the choice made by the user concerning the height of the furniture unit. The user may also directly or indirectly have made a choice that the furniture is to be moved to a calibration position. When the burton 10 is released, this is perceived as a stop signal and the upward or downward movement is discontinued.
  • a communication conductor 12 in the form of a bus extends between the legs 2 and 3.
  • the bus is constructed from a number of conductors for parallel transmission of electric signals.
  • the bus as such permits electric signals to be transmitted on all conductors simultaneously. In the preferred embodiment, this will not typically take place, since each conductor which is included in the bus has been allocated a separate and special function and certain of these functions preclude the others for logical reasons.
  • the left-hand leg 2 has a corresponding socket 13 on that side which is turned to face away from the observer of the Drawings and the signal conductor 11 is connected to this socket.
  • the signal button 10 is moveable between the sockets 13 but only one of the sockets 13 maybe connected to the signal buttons.
  • the socket 13 also functions for current supply to the accumulators 9, even though this is not shown in Fig. 1.
  • That side of the leg 2 which is turned to face towards the observer of the Drawings displays two sockets 14 for communication conductors 12 and one of these sockets is utilised in the preferred embodiment.
  • the right-hand leg 3 also has two sockets 14 for communication conductors 12, but in a corresponding manner only one of these sockets is used.
  • the legs 2 and 3 are of identical manufacture and are turnable on mounting in the manner shown in Fig. 1.
  • Fig. 2 shows in closer detail a partly cut away view of the left-hand leg in Fig. 1. Since the legs 2, 3 are in principle identical, only the one need be described. This view shows the sockets 14 for the communication conductor 12 somewhat more 01543
  • the leg 2 has an outer section 4 and an inner section 5 slidable therein.
  • a threaded rod 17 connects the inner leg section 5 with those parts which are fixedly secured in the outer leg section 4, such as a motor 15 and a gear 16.
  • the motor 15 is an electric drive motor which is powered by current from a mains connection via the adaptor 7 and the accumulator 9.
  • the rotation of the motor 15 entails a protraction or retraction of the leg, i.e. an axial movement of the inner leg section 5 in relation to the outer leg section 4.
  • the lower end 19 of the zero point indicator 18 is provided with a spring 20.
  • the spring 20 On contact with the upper end of the inner leg section 5, the spring 20 is compressed and the zero point indicator 18 is displaced a distance upwards. This displacement is detected above the upper end of the motor 15, as will be described in greater detail hereinbelow.
  • the compressed spring 20 returns the zero point indicator 18. The thus obtained zero point functions as a starting point from which the rotation of the motor 15 is indicated and also, indirectly, the extension of the leg 2 in relation to the zero point.
  • Fig. 3 is an exploded view of the leg 2, substantially corresponding to the view in Fig. 2.
  • the parts included in the leg 2 are somewhat more clearly apparent and there is moreover seen a circuit card 21 to which the signal conductor 11 and the communication conductor 12 are connected, above the motor 15.
  • the circuit card 21 functions as a microprocessor disposed in the leg 2.
  • Fig. 4 is a perspective view from above of the leg 2 where the table top has been removed and the leg 2 is partly cut away. From the left, the signal conductor 11 extends from the signal button 10. The communication conductor 12 extends to the second leg 3 so that a two way communication is made possible. A further socket 14 is free for connection to an additional leg. An upper portion 22 of the zero position indicator 18 is disposed above the circuit card 21 and the zero position indicator 18 extends therethrough. On the circuit card 21 there is provided a zero point detector 23. When the zero point indicator 18 and its upper portion 22 are urged upwards on a contact with the upper end of the inner leg section 5, the upper portion 22 of the zero position indicator 18 will be displaced in relation to the zero position detector 23.
  • the circuit card 21 will register that a zero position has been reached and that all further movements of the motor 15 and thereby the leg 2 will be calculated on the basis of the zero position.
  • a rotation indicator 24 which has two halves. When the one half comes to face towards the rotation detector 25, a pulse is registered and when the rotation indicator 24 has rotated another turn so that the same half thereof once again faces towards the rotation detector a new pulse is registered.
  • Fig. 5 shows a flow diagram of the process for raising and lowering of the table.
  • the signal button 10 may either generate a signal 33 to the table to move upwards, or a signal to move downwards.
  • the signal 33 from the signal button is passed to one of the legs 2 which is connected to the signal button 10 via the signal conductor 11.
  • the microprocessor 21 which receives such an input signal 33 will control all legs in the furniture unit. That leg where this microprocessor 21 is located will be designated the master leg or primary leg.
  • the microprocessor 21 is not of any specific type in relation to corresponding microprocessors 21 in the other legs but it is the presence of an input signal precisely to this leg 2 and this microprocessor 21 which makes the leg 2 into the master leg.
  • the pulses 27 will be conducted to and read-off by the microprocessor 21 of that leg. That conductor 28, 29 on which the pulses 27 occur gives the microprocessor 21 of the slave leg 3 information about whether a movement is to be executed upwards or downwards and the number of pulses indicates the length of the movement.
  • the microprocessor 21 of the slave leg 3 As soon as the first pulses reach the microprocessor 21 of the slave leg 3, it begins to compare the position of the master leg 2 with the position of the slave leg 3. When the difference between the two legs 2, 3 becomes sufficiently large, i.e. when the master leg 2 has moved a sufficient distance, the microprocessor 21 of the slave leg 3 will emit a control signal 30 to the motor 15 of the slave leg 3 in order to cause it to move. In the same manner as the master leg 2, the slave leg 3 will also transmit pulses 31 which correspond to the rotation of the motor 15 and thereby the protraction of the slave leg 3 to the microprocessor 21 in its own leg 3.
  • the microprocessor 21 in the slave leg 3 will emit a wait signal on a conductor 32 intended for this purpose in the bus 12. This signal remains active until such time as the difference once again falls below a predetermined level, i.e. when the slave leg 3 has caught up with the master leg 2. As soon as a wait signal 32 has been transmitted on the bus 12, the microprocessor 21 in the master leg 2 will sense this signal. The motor 15 of the master leg 2 will be ordered by its microprocessor 21 to make a pause.
  • the microprocessor 21 of the master leg 2 will once again emit a control signal 26 to the motor 15 of the master leg 2 on condition that there is still an input signal 33 from the signal button 10 on the signal conductor 11. In default of such a signal 33, it may be presupposed that the user of the table is satisfied with the height which has been reached.
  • the number of completed turns of the motor 15 in relation to the zero position will always be residual in the microprocessor 21 of each respective leg 2, 3 so that, if a difference occurs between the legs 2 and 3 in connection with the end of the movement, it will be possible to correct this difference the next time the master leg receives an input signal from the signal button 10 on the signal conductor 11.
  • the applied voltage will function as a signal for calibration of the table 1.
  • the motors 15 will be ordered to move downwards until such time as the zero position which is registered by the zero position indicator 18 is reached.
  • the power supply will be maintained by the accumulators 9.

Landscapes

  • Tables And Desks Characterized By Structural Shape (AREA)
  • Legs For Furniture In General (AREA)

Abstract

La présente invention concerne un meuble (1) réglable verticalement comprenant au moins deux pieds (2, 3) réglables verticalement, chacun de ces pieds présentant une section pied extérieure (4), une section pied intérieure (5) et un pied (6). Chaque pied (2, 3) présente un moteur d'entraînement (15) conçu pour relever et abaisser les pieds (2, 3). Le meuble (1) présente un bouton de signalisation (10) connecté à un pied (2), le pied principal, grâce auquel l'utilisateur transmet des signaux (33) permettant de relever et d'abaisser, respectivement le pied. Le signal (33) est ensuite transmis à/aux autre(s) pied(s) (3), les pieds secondaires, par l'intermédiaire d'un conducteur de communication (12) permettant l'échange des signaux d'information entre le pied principal (2) et le(s) pied(s) secondaire(s) (3). Les signaux d'information contiennent des informations concernant le déplacement du pied principal (2) et du ou des pieds secondaires (3), afin de permettre une comparaison entre le déplacement du ou de pieds secondaires (3) par rapport au pied principal (2); le déplacement correspondant étant généré dans le ou les pieds secondaires (3). Cette invention concerne également un procédé permettant de relever ou d'abaisser le meuble (1).
PCT/SE2005/001543 2004-10-19 2005-10-17 Meuble verticalement reglable et procede permettant de relever et d'abaisser un meuble verticalement reglable. WO2006043881A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0402529A SE527764C2 (sv) 2004-10-19 2004-10-19 Höjdjusterbar möbel samt förfarande för höjning och sänkning av i höjdled inställbar möbel
SE0402529-2 2004-10-19

Publications (1)

Publication Number Publication Date
WO2006043881A1 true WO2006043881A1 (fr) 2006-04-27

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PCT/SE2005/001543 WO2006043881A1 (fr) 2004-10-19 2005-10-17 Meuble verticalement reglable et procede permettant de relever et d'abaisser un meuble verticalement reglable.

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SE (1) SE527764C2 (fr)
WO (1) WO2006043881A1 (fr)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1947981A1 (fr) * 2005-10-18 2008-07-30 Linak A/S Article d'ameublement, en particulier une table a laquelle on peut s'asseoir/se tenir debout
EP2140780A1 (fr) * 2008-07-04 2010-01-06 Kinnarps Ab Tableau
DE102010046769A1 (de) * 2010-09-28 2012-03-29 Oelschläger Metalltechnik GmbH Hubsäuleneinheit zur elektromotorischen Höhenverstellung eines Möbelstücks, insbesondere eines Tisches, elektrisch höhenverstellbares Möbelstück, insbesondere ein Tisch, umfassend selbige sowie Tischanordnung
WO2012140085A1 (fr) * 2011-04-15 2012-10-18 Kesseböhmer Produktions GmbH & Co. KG Colonne télescopique calibrable, meuble équipé d'une colonne télescopique calibrable, et procédé de calibrage d'une colonne télescopique
EP2819548B1 (fr) 2012-02-28 2016-02-24 DewertOkin GmbH Système de meubles et procédé de commande parallèle d'au moins deux mécanismes de commande à moteur électrique d'un système de meubles
EP2415161B1 (fr) 2009-03-31 2016-03-30 Logicdata Electronic&Software Entwicklungs GmbH Entraînement linéaire et table équipée d'un entraînement linéaire ainsi que moteur pour ledit entraînement linéaire
CN105997260A (zh) * 2016-07-28 2016-10-12 北京柏惠维康科技有限公司 自动升降装置及其控制方法及手术医疗系统
JP2017519546A (ja) * 2014-05-26 2017-07-20 リナック エー／エス 家具用支持フレーム
US20170340103A1 (en) * 2014-10-24 2017-11-30 Suspa Gmbh Device for adjusting the height of a first part relative to a second part, a retrofit kit for such a device and height-adjustable system comprising a plurality of such devices
EP3285391A1 (fr) * 2016-08-17 2018-02-21 LOGICDATA Electronic & Software Entwicklungs GmbH Système de commande de meuble et procédé de commande d'un système de meuble réglable
WO2018210651A1 (fr) 2017-05-15 2018-11-22 Actiforce International B.V. Table avec plateau de hauteur variable
CN113170972A (zh) * 2021-03-26 2021-07-27 浙江乐歌智能驱动科技有限公司 一种基于总线结构的多立柱升降系统及识别控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE428754B (sv) * 1980-12-23 1983-07-25 Gunnar Ahlstrom Anordning vid ett bord som innefattar en hoj- och senkbar bordskiva
EP0994560A1 (fr) * 1998-10-16 2000-04-19 Klaus Appel Méthode et dispositif d'ajustement synchrone des organes mobiles, particulièrement des pieds de table

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE428754B (sv) * 1980-12-23 1983-07-25 Gunnar Ahlstrom Anordning vid ett bord som innefattar en hoj- och senkbar bordskiva
EP0994560A1 (fr) * 1998-10-16 2000-04-19 Klaus Appel Méthode et dispositif d'ajustement synchrone des organes mobiles, particulièrement des pieds de table

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1947981A4 (fr) * 2005-10-18 2012-04-25 Linak As Article d'ameublement, en particulier une table a laquelle on peut s'asseoir/se tenir debout
EP1947981A1 (fr) * 2005-10-18 2008-07-30 Linak A/S Article d'ameublement, en particulier une table a laquelle on peut s'asseoir/se tenir debout
EP2140780A1 (fr) * 2008-07-04 2010-01-06 Kinnarps Ab Tableau
EP2415161B1 (fr) 2009-03-31 2016-03-30 Logicdata Electronic&Software Entwicklungs GmbH Entraînement linéaire et table équipée d'un entraînement linéaire ainsi que moteur pour ledit entraînement linéaire
US9642758B2 (en) 2009-03-31 2017-05-09 Logicdata Electronic & Software Entwicklungs Gmbh Linear actuator with a rotating brushless DC motor
DE102010046769A1 (de) * 2010-09-28 2012-03-29 Oelschläger Metalltechnik GmbH Hubsäuleneinheit zur elektromotorischen Höhenverstellung eines Möbelstücks, insbesondere eines Tisches, elektrisch höhenverstellbares Möbelstück, insbesondere ein Tisch, umfassend selbige sowie Tischanordnung
CN103648329B (zh) * 2011-04-15 2016-09-28 克塞伯默尔产品有限责任两合公司 可调校的伸缩柱、家具以及调校的方法
CN103648329A (zh) * 2011-04-15 2014-03-19 克塞伯默尔产品有限责任两合公司 可调校的伸缩柱、带有可调校的伸缩柱的家具以及调校伸缩柱的方法
WO2012140085A1 (fr) * 2011-04-15 2012-10-18 Kesseböhmer Produktions GmbH & Co. KG Colonne télescopique calibrable, meuble équipé d'une colonne télescopique calibrable, et procédé de calibrage d'une colonne télescopique
US9814306B2 (en) 2011-04-15 2017-11-14 Kessebohmer Produktions Gmbh & Co. Kg Telescopic column that can be calibrated, piece of furniture having a telescopic column that can be calibrated, and method for calibrating a telescopic column
EP2819548B1 (fr) 2012-02-28 2016-02-24 DewertOkin GmbH Système de meubles et procédé de commande parallèle d'au moins deux mécanismes de commande à moteur électrique d'un système de meubles
JP2017519546A (ja) * 2014-05-26 2017-07-20 リナック エー／エス 家具用支持フレーム
US20170340103A1 (en) * 2014-10-24 2017-11-30 Suspa Gmbh Device for adjusting the height of a first part relative to a second part, a retrofit kit for such a device and height-adjustable system comprising a plurality of such devices
CN105997260A (zh) * 2016-07-28 2016-10-12 北京柏惠维康科技有限公司 自动升降装置及其控制方法及手术医疗系统
EP3285391A1 (fr) * 2016-08-17 2018-02-21 LOGICDATA Electronic & Software Entwicklungs GmbH Système de commande de meuble et procédé de commande d'un système de meuble réglable
WO2018033421A1 (fr) * 2016-08-17 2018-02-22 Logicdata Electronic & Software Entwicklungs Gmbh Système de commande de meubles et procédé de commande d'un système de meubles réglables
US20190183239A1 (en) * 2016-08-17 2019-06-20 Logicdata Electronic & Software Entwicklungs Gmbh Furniture control system and method for controlling an adjustable furniture system
WO2018210651A1 (fr) 2017-05-15 2018-11-22 Actiforce International B.V. Table avec plateau de hauteur variable
CN113170972A (zh) * 2021-03-26 2021-07-27 浙江乐歌智能驱动科技有限公司 一种基于总线结构的多立柱升降系统及识别控制方法

Also Published As

Publication number Publication date
SE0402529L (sv) 2006-04-20
SE527764C2 (sv) 2006-05-30
SE0402529D0 (sv) 2004-10-19

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