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EP1891872A1 - Dispositif et procédé de détection de collisions pour les meubles - Google Patents

Dispositif et procédé de détection de collisions pour les meubles Download PDF

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Publication number
EP1891872A1
EP1891872A1 EP06017650A EP06017650A EP1891872A1 EP 1891872 A1 EP1891872 A1 EP 1891872A1 EP 06017650 A EP06017650 A EP 06017650A EP 06017650 A EP06017650 A EP 06017650A EP 1891872 A1 EP1891872 A1 EP 1891872A1
Authority
EP
European Patent Office
Prior art keywords
attachment point
sensor
table leg
furniture
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.)
Granted
Application number
EP06017650A
Other languages
German (de)
English (en)
Other versions
EP1891872B1 (fr
Inventor
Michael Buitmann
Michael Köder
Thomas Strothmann
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.)
Kesseboehmer Produktions GmbH and Co KG
Original Assignee
Kesseboehmer Produktions GmbH and Co KG
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=36950517&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1891872(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Kesseboehmer Produktions GmbH and Co KG filed Critical Kesseboehmer Produktions GmbH and Co KG
Priority to AT06017650T priority Critical patent/ATE469577T1/de
Priority to DE502006007106T priority patent/DE502006007106D1/de
Priority to EP06017650A priority patent/EP1891872B1/fr
Priority to DK06017650.0T priority patent/DK1891872T3/da
Priority to US11/843,905 priority patent/US7661292B2/en
Publication of EP1891872A1 publication Critical patent/EP1891872A1/fr
Application granted granted Critical
Publication of EP1891872B1 publication Critical patent/EP1891872B1/fr
Revoked 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
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • 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
    • A47B2200/006—Leg adjustment with a motor, e.g. an electric motor with table or desk equipped with limit switches

Definitions

  • the invention relates to a device and a method for detecting collisions in furniture, and in particular relates to an apparatus and a method for detecting collisions of automatically movable portions of furniture with obstacles by detecting a bending change or an acceleration change.
  • a collision is detected only when it occurs on the miniature switch bar, ie in the region of the edges of the table top, while pressure is exerted from a limited direction range on the miniature switch bar. If a collision occurs only slightly inside the tabletop, it can not be detected by the miniature selector. In addition, the large-scale attachment of the miniature switch bar limits the aesthetic design options of the table top.
  • the object of the invention is to provide a method and a device for detecting collisions of automatically movable parts of furniture with obstacles which eliminate the mentioned disadvantages and in particular to provide a device and a method for collision of the movable part with an obstacle over the entire surface of the movable portion in a timely, reliable and cost-effective manner.
  • devices such as automatically retractable projectors, screens or the like are considered as movable parts of furniture within the scope of the invention.
  • the invention provides a device for detecting collisions of automatically movable parts of furniture with obstacles, comprising: a piece of furniture with at least one movable part, which part is adapted to be moved relative to the rest of the furniture, an automatic drive mechanism, adapted to move the movable portion, control means adapted to control the automatic drive mechanism and a sensor adapted to detect a collision in the movement of the movable portion with an obstacle and to the control device to convey.
  • the sensor detects a bending change of the movable portion.
  • the device can be provided inexpensively if the sensor is a piezoelectric sensor, in particular if the sensor is a piezoelectric diaphragm for generating sound signals.
  • the reliability of collision detection can be increased by mounting the sensor on the movable member at a mounting location where a high bending moment is applied in the event of a collision.
  • Such attachment points are preferably located on a radial inner side of a hollow table leg, on the table top in the immediate vicinity of the upper end of the table leg and on a horizontal support plate connected to a table leg of a support frame of the table top.
  • an additional plate is provided at the upper end of the table leg and the attachment point is arranged on the additional plate.
  • the additional plate may overlap the circumference of the table leg and the attachment point be arranged outside the outer circumference of the upper end of the table leg, which is advantageous if the circumference of the table leg is dimensioned too small to accommodate the sensor.
  • the invention provides a device as described above, wherein the sensor detects an acceleration of a portion of the movable portion instead of a bending change.
  • the sensor In order to further increase the reliability of the collision detection, it is advantageous to attach the sensor to the movable part at an attachment point at which there is a high acceleration in the event of a collision.
  • an attachment point is given, inter alia, in the region of a front edge and a rear edge of the table top.
  • the invention provides a method which detects a collision of automatically movable portions of furniture via the steps of: operating an automatic drive mechanism by the control means to move the movable portion in a predetermined direction, detecting a change in bending of the movable portion at an attachment point by a sensor upon collision of the movable portion with an obstacle, transmitting a signal from the sensor to the control device, stopping the automatic drive mechanism by the control device.
  • the detection of the change in bending is made by changing a compression or elongation of a piezoelectric material in, for example, a piezoelectric diaphragm at the bending change of the mounting location on the movable portion and generating an electrical signal by the piezoelectric material upon the change in compression or extension.
  • the invention provides another method as above, wherein an acceleration change is detected instead of a bending change of an attachment position of the movable portion by a sensor upon collision of the movable portion with an obstacle.
  • the previous method is followed by the step of returning the movable portion by a predetermined distance in the opposite direction to the original direction of movement.
  • Fig. 1 shows an automatically height-adjustable table with a table top 1, which has a front edge 11 and a rear edge 12.
  • the table top 1 is mounted on a support frame 2, which consists of a front and a rear square beam 21 and a right and a left support plate 22.
  • the carrier plates 22 are each connected to table legs 3.
  • a table leg consists of an inner table leg component 31, which at its upper end with the support plate 22nd is connected, and an outer table leg member 32 which are arranged one inside the other, that the table leg 3 is telescopically adjustable in length. At the lower end of the outer member 32 is perpendicular to a researchingbauteil 33 is arranged.
  • an electric motor not shown, and a not shown spindle gear are mounted with threaded rod.
  • the electric motors of both table legs 3 are operated by a control device, not shown, and are adapted to rotate the threaded rod and so make an automatic change in length of the table legs 3.
  • the control device is connected to a respective switch for selecting an upward movement and a downward movement of the table top.
  • a sensor 4 is located at the upper end of the hollow inner table member 31 on a radially inner surface 36, for example on an inner side facing the other table leg 3.
  • a piezoelectric diaphragm 4 is used, which is conventionally used as a cost-effective sound generator in, for example, watches, calculators and washing machines.
  • the piezoelectric diaphragm 4 is composed of a round disc-shaped base plate 41 made of brass or stainless steel on which a round piezoelectric ceramic plate 42 is adhesively attached.
  • a round piezoelectric ceramic plate 42 is adhesively attached on the flat side of the piezoelectric ceramic plate 42 facing the base plate 41.
  • an electrode 43 is disposed on the flat side of the piezoelectric ceramic plate 42 facing the base plate 41, and on the opposite side of the piezoelectric ceramic plate 42, an electrode 44 is disposed.
  • the switch is actuated, which signals the control device, for example, a lowering of the table top to be performed.
  • the control device now operates both electric motors of both table legs 3 synchronously in a direction of rotation through which a shortening of both table legs is carried out via the threaded rod so that the inner table leg component 31 is drawn into the outer table leg component 32.
  • the table top is thereby lowered. If, for example, there is an obstacle under the table in the middle region of the front edge 11 of the table top, the table top 1, inter alia, will slightly bump when the table top rises onto the obstacle.
  • This curvature is transmitted via the support frame 2 on the upper end of the table legs 3 and leads to a slight curvature of the inner Tischbeinbaumaschine 31.
  • the attached to the attachment point shown in FIG. 3 piezoelectric diaphragm is according to the Bent table leg curvature, the piezoelectric ceramic plate 42 compressed and generates a voltage difference across the electrodes 43 and 44.
  • This voltage difference is transmitted via the cable 45 to the control device.
  • the control device stops the rotation of the two electric motors of the table legs 3, reverses the rotation and moves the table top 1 upward by a predetermined distance.
  • the upper end of the inner table leg member 31 are provided with an auxiliary plate 34, on the underside of which the attachment point of the piezoelectric diaphragm 4 is located.
  • On the side facing away from the viewer of the additional plate 34 of FIG. 4b is provided at a central point an expression with a height of 0.2 mm. This is applied to the support plate when table leg 3 and support frame 2 are secured together and ensures that the additional plate is biased in such a way that it bulges to the side of the table leg 3.
  • the auxiliary plate 34 is configured so that it overlaps the inner table leg member 31 on at least one side with a portion 35 at least the width of the piezoelectric diaphragm 4.
  • the overlapping portion 35 of the auxiliary plate 34 is slightly bent with respect to FIG. 5b in the direction of the side facing away from the observer.
  • the overlapping portion 35 is biased.
  • the location of the piezoelectric diaphragm 4 is disposed on the biased overlapping portion 35 outside the table leg.
  • An attachment of the sensor according to FIGS. 3, 4A and 5A also has the advantage that focus sensor, control device and drive on the table legs, and other table components, such as table top 1 and support frame 2, which are provided in many cases by third-party manufacturers, unaffected.
  • the mounting location of the piezoelectric diaphragm 4 may be arranged on the support plate 22 of the support frame 2.
  • the support plate 22 of the support frame 2 at the central position shown in Fig. 6 on the upper side of the support plate 22, at the in FIG. 7 and 8, positioned in the direction of the front edge 11 of the table top position at the bottom or the top of the partition plate position generates a high bending deformation, which is reliably detected by the piezoelectric diaphragm 4.
  • an acceleration sensor is used instead of the piezoelectric diaphragm 4.
  • the acceleration sensor is a piezoelectric inertia sensor in which by a rest mass a predetermined force on a piezoelectric Material is exercised. Upon an acceleration change of the sensor, the force of the rest mass changes to the piezoelectric material, whereby its compression or extension changes.
  • the remaining structure of the embodiment corresponds to the structure of the first embodiment, to which reference is hereby made.
  • the attachment point of the acceleration sensor is located in the region of the front edge 11 and / or the rear edge 12 of the table top 1, since high acceleration values occur in the event of a collision of the table top with an obstacle.
  • a movement initiation of the table top is initiated according to the collision detection process of the first embodiment. For example, if the table top encounters an obstacle in the central area of the front edge, the movement of the table top is slowed down, which corresponds to an acceleration upwards of the acceleration sensor attached to the table top. The acceleration sensor generates a voltage difference, which is transmitted as a signal to the control device. The control device then controls the drive of the electric motors in the manner described in the first embodiment.

Landscapes

  • Tables And Desks Characterized By Structural Shape (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Burglar Alarm Systems (AREA)
  • Warehouses Or Storage Devices (AREA)
EP06017650A 2006-08-24 2006-08-24 Dispositif et procédé de détection de collisions pour les meubles Revoked EP1891872B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT06017650T ATE469577T1 (de) 2006-08-24 2006-08-24 Vorrichtung und verfahren zur erkennung von kollisionen bei möbeln
DE502006007106T DE502006007106D1 (de) 2006-08-24 2006-08-24 Vorrichtung und Verfahren zur Erkennung von Kollisionen bei Möbeln
EP06017650A EP1891872B1 (fr) 2006-08-24 2006-08-24 Dispositif et procédé de détection de collisions pour les meubles
DK06017650.0T DK1891872T3 (da) 2006-08-24 2006-08-24 Indretning og fremgangsmåde til genkendelse af kollisioner ved møbler
US11/843,905 US7661292B2 (en) 2006-08-24 2007-08-23 Device and method for detection of collisions in furniture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06017650A EP1891872B1 (fr) 2006-08-24 2006-08-24 Dispositif et procédé de détection de collisions pour les meubles

Publications (2)

Publication Number Publication Date
EP1891872A1 true EP1891872A1 (fr) 2008-02-27
EP1891872B1 EP1891872B1 (fr) 2010-06-02

Family

ID=36950517

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06017650A Revoked EP1891872B1 (fr) 2006-08-24 2006-08-24 Dispositif et procédé de détection de collisions pour les meubles

Country Status (5)

Country Link
US (1) US7661292B2 (fr)
EP (1) EP1891872B1 (fr)
AT (1) ATE469577T1 (fr)
DE (1) DE502006007106D1 (fr)
DK (1) DK1891872T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010036174A1 (fr) * 2008-09-24 2010-04-01 Swedestyle Ab Dispositif de montage d'un plateau de table sur un châssis avec mécanisme d'entraînement
WO2009146709A3 (fr) * 2008-06-06 2010-04-29 Linak A/S Meuble réglable
DE102009058422A1 (de) 2009-12-16 2011-06-22 Logicdata Electronic & Software Entwicklungs Gmbh Vorrichtung und Verfahren zur Kollisionserkennung eines beweglichen Möbelanteils mit einem Hindernis
DE202010005411U1 (de) * 2010-05-08 2011-08-09 Dewert Antriebs- Und Systemtechnik Gmbh Elektromotorische Verstelleinrichtung für ein Möbel
EP2497386A1 (fr) * 2011-03-10 2012-09-12 Oelschläger Metalltechnik GmbH Piètement de table réglable en hauteur, notamment pour un bureau, et table dotée de celui-ci
EP2583586A1 (fr) * 2011-10-18 2013-04-24 Kesseböhmer Produktions GmbH + Co. KG Dispositif de détection de collisions et procédé associé
WO2021151677A1 (fr) * 2020-01-28 2021-08-05 Bayerische Motoren Werke Aktiengesellschaft Procédé de fourniture de sécurité anti-pincement pour un véhicule à moteur
EP3967181A1 (fr) * 2020-09-15 2022-03-16 Kesseböhmer Holding KG Système d'entraînement permettant de déplacer un plateau de table réglable en hauteur, table doté d'un tel système d'entraînement et procédé de détection d'une collision d'un plateau de table réglable en hauteur

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US7523669B1 (en) * 2008-04-29 2009-04-28 International Business Machines Corporation Method for strength testing of drawers in computer rack systems
EP2160958B1 (fr) * 2008-09-08 2016-06-29 Linak A/S Table à hauteur réglable
CN101756505B (zh) * 2008-12-24 2012-11-14 西北农林科技大学 一种自动调整桌面高度的装置
US20120048150A1 (en) * 2010-08-24 2012-03-01 Sheldon Laboratory Systems, Inc. Handicap Accessible Laboratory Table
US9486070B2 (en) 2012-10-10 2016-11-08 Stirworks Inc. Height-adjustable support surface and system for encouraging human movement and promoting wellness
US10038952B2 (en) 2014-02-04 2018-07-31 Steelcase Inc. Sound management systems for improving workplace efficiency
US12376677B1 (en) 2012-10-10 2025-08-05 Steelcase Inc. Ergonomic seating system, tilt-lock control and remote powering method and apparatus
US10085562B1 (en) 2016-10-17 2018-10-02 Steelcase Inc. Ergonomic seating system, tilt-lock control and remote powering method and appartus
US10827829B1 (en) * 2012-10-10 2020-11-10 Steelcase Inc. Height adjustable support surface and system for encouraging human movement and promoting wellness
JP1525065S (fr) * 2014-09-30 2015-06-01
AU2016201802B2 (en) * 2015-03-26 2021-03-25 King Furniture Australia Pty Ltd Safety interlock
CA3041754A1 (fr) 2015-11-13 2017-05-18 Sparx Smartpods Inc. Systemes et procedes de commande d'une station de travail interactive bases sur une entree biometrique
US9921726B1 (en) 2016-06-03 2018-03-20 Steelcase Inc. Smart workstation method and system
CN206390562U (zh) 2016-09-23 2017-08-11 廖良成 电动升降电脑桌及其办公桌
US11019920B2 (en) 2016-09-23 2021-06-01 Varidesk, Llc Electrically-lifted computer desk and office desk thereof
US9872561B1 (en) * 2016-10-14 2018-01-23 Gilma Liliana Alfaro Easy access overhead cabinet apparatus
CN207115083U (zh) * 2017-06-09 2018-03-16 浙江捷昌线性驱动科技股份有限公司 一种遇阻可回退的电动升降平台
AU2018236866A1 (en) * 2017-10-02 2019-04-18 SpaceCo Business Solutions, Inc. System for reducing injury from pinch zones in adjustable height work surface assemblies
EP3745913B1 (fr) 2018-01-31 2023-06-14 Oelschläger Metalltechnik GmbH Table réglable électriquement en hauteur et procédé de commande de celle-ci
DE102018205158A1 (de) * 2018-04-05 2019-10-10 Kesseböhmer Produktions GmbH & Co. KG Verfahren zum Erkennen einer Belegungssituation eines Möbels, eine Vorrichtung, ein Möbelsystem sowie ein Reservierungssystem
US10869547B2 (en) * 2018-12-20 2020-12-22 Dong Guan Song Wei Electric Technology Co., Ltd. Height-adjustable table with tabletop touch control
CN110250739A (zh) * 2019-04-18 2019-09-20 美国乐歌有限公司 实现将遇阻回退的电动升降桌台控制系统及方法
DE202019102842U1 (de) * 2019-05-20 2020-08-24 Dewertokin Gmbh Elektromotorische Verstelleinrichtung für ein Möbel, insbesondere ein Tischmöbel
CA3095809A1 (fr) 2019-10-22 2021-04-22 Thorlabs, Inc. Table optique motorisee a hauteur ajustable comprenant une isolation rigide, passive et active
TWM590010U (zh) * 2019-11-18 2020-02-01 海麥斯科技有限公司 單馬達驅動之升降桌腳結構
CN111184345B (zh) * 2020-03-13 2024-06-25 常州市凯迪电器股份有限公司 电动桌安全运行的控制方法及其控制单元
USD947579S1 (en) * 2020-06-15 2022-04-05 zhejiang zhongwei smart furniture Co., LTD Electric lift table
USD961962S1 (en) * 2020-07-02 2022-08-30 Yajun Hun Gaming desk
USD950986S1 (en) * 2020-07-13 2022-05-10 Yajun Hu Height adjustable desk
USD966015S1 (en) * 2020-08-03 2022-10-11 Ningbo Yuanjing Electronic Technology Co., Ltd Desk
JP1702040S (fr) * 2020-09-22 2021-12-13
DE102021206231A1 (de) 2021-06-17 2022-12-22 Veyhl Gmbh Höhenverstellbares Tischbein, Tischgestell und Tisch
EP4273558B1 (fr) * 2022-05-04 2024-07-24 Rol Ergo AB Dispositif de détection de collision pour meubles réglables

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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009146709A3 (fr) * 2008-06-06 2010-04-29 Linak A/S Meuble réglable
EP2326212A4 (fr) * 2008-09-24 2012-02-29 Swedestyle Ab Dispositif de montage d'un plateau de table sur un châssis avec mécanisme d'entraînement
WO2010036174A1 (fr) * 2008-09-24 2010-04-01 Swedestyle Ab Dispositif de montage d'un plateau de table sur un châssis avec mécanisme d'entraînement
DE102009058422B4 (de) * 2009-12-16 2015-05-07 Logicdata Electronic & Software Entwicklungs Gmbh Vorrichtung und Verfahren zur Kollisionserkennung eines beweglichen Möbelanteils mit einem Hindernis
DE102009058422A1 (de) 2009-12-16 2011-06-22 Logicdata Electronic & Software Entwicklungs Gmbh Vorrichtung und Verfahren zur Kollisionserkennung eines beweglichen Möbelanteils mit einem Hindernis
WO2011083019A1 (fr) 2009-12-16 2011-07-14 Logicdata Electronic & Software Entwicklungs Gmbh Procédé et dispositif de détection d'impact d'une partie mobile d'un meuble avec un obstacle
US9326597B2 (en) 2009-12-16 2016-05-03 Logicdata Electronic & Software Entwicklungs Gmbh Device and method for detecting a collision of a displaceable furniture part and an obstacle
DE202010005411U1 (de) * 2010-05-08 2011-08-09 Dewert Antriebs- Und Systemtechnik Gmbh Elektromotorische Verstelleinrichtung für ein Möbel
EP2497386A1 (fr) * 2011-03-10 2012-09-12 Oelschläger Metalltechnik GmbH Piètement de table réglable en hauteur, notamment pour un bureau, et table dotée de celui-ci
US9236817B2 (en) 2011-10-18 2016-01-12 Kessebohmer Produktions Gmbh & Co. Kg Device for detecting collisions and a method related thereto
EP2583586A1 (fr) * 2011-10-18 2013-04-24 Kesseböhmer Produktions GmbH + Co. KG Dispositif de détection de collisions et procédé associé
WO2021151677A1 (fr) * 2020-01-28 2021-08-05 Bayerische Motoren Werke Aktiengesellschaft Procédé de fourniture de sécurité anti-pincement pour un véhicule à moteur
EP3967181A1 (fr) * 2020-09-15 2022-03-16 Kesseböhmer Holding KG Système d'entraînement permettant de déplacer un plateau de table réglable en hauteur, table doté d'un tel système d'entraînement et procédé de détection d'une collision d'un plateau de table réglable en hauteur
DE102020211550A1 (de) 2020-09-15 2022-03-17 Kesseböhmer Holding Kg Antriebssystem zum Bewegen einer höhenverstellbaren Tischplatte, Tisch mit einem solchen Antriebssystem und Verfahren zum Erfassen einer Kollision einer höhenverstellbaren Tischplatte

Also Published As

Publication number Publication date
US20080289544A1 (en) 2008-11-27
US7661292B2 (en) 2010-02-16
DK1891872T3 (da) 2010-07-19
DE502006007106D1 (de) 2010-07-15
ATE469577T1 (de) 2010-06-15
EP1891872B1 (fr) 2010-06-02

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