EP0500187A1 - Agencement de pied de table - Google Patents

Agencement de pied de table Download PDF

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Publication number
EP0500187A1
EP0500187A1 EP92200503A EP92200503A EP0500187A1 EP 0500187 A1 EP0500187 A1 EP 0500187A1 EP 92200503 A EP92200503 A EP 92200503A EP 92200503 A EP92200503 A EP 92200503A EP 0500187 A1 EP0500187 A1 EP 0500187A1
Authority
EP
European Patent Office
Prior art keywords
leg structure
right angle
pillars
foot
transmissions
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
EP92200503A
Other languages
German (de)
English (en)
Other versions
EP0500187B1 (fr
Inventor
Willem Eduard Van De Schee
Willi Van Engeland
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.)
VAN ENGELAND MANAGEMENT B.V.
Original Assignee
VAN ENGELAND MANAGEMENT BV
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=19858924&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0500187(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by VAN ENGELAND MANAGEMENT BV filed Critical VAN ENGELAND MANAGEMENT BV
Publication of EP0500187A1 publication Critical patent/EP0500187A1/fr
Application granted granted Critical
Publication of EP0500187B1 publication Critical patent/EP0500187B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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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
    • A47B9/04—Tables with tops of variable height with vertical spindle
    • A47B2009/043—Tables with tops of variable height with vertical spindle with means connecting the spindles of the various legs
    • 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
    • A47B2009/046—Tables with tops of variable height with vertical spindle with gearbox

Definitions

  • the invention lies in the field of tables whereof the work surface is height-adjustable.
  • Such tables are known for instance from the European patent application EP-A-0 283 103 of applicant.
  • a leg structure therein comprises a foot, a pillar of adjustable length connected thereto and consisting of two parts telescopically movable relative to one another and a table top fixed to the upper of these parts.
  • the invention has for its object to provide a leg structure which, using simple means, offers a greatly increased mechanical stability and a greatly improved load-taking capacity of the work surface.
  • the invention provides a leg structure with adjustable length for bearing together with at least one other leg structure a work surface, which leg structure comprises: a foot for placing on the ground; a support for coupling to the work surface; two pillars of adjustable length which are rigidly connected on one side to the foot and on the other to the support, each of which pillars comprises: two parts telescopically movable relative to one another, namely an upper part that is connected to the support and a lower part connected to the foot and provided with a spindle nut into which is screwed a screw spindle mounted on the upper part; a right angle transmission present on the upper part wherein the right angle transmissions of both pillars have equal transmission ratios and are mutually coupled such that when the screw spindles are rotated the pillars undergo equal changes in length; and drive means for rotatably driving the screw spindles.
  • right angle transmissions of different types are known. There exist for instance worm gearings and gear wheel transmissions. For a transmission that is as free of friction as possible it is recommended according to the invention that the right angle transmissions are gear wheel transmissions, for instance of the type with bevel gear wheels. Such gear wheel transmissions also have the advantage of being generally better capable than worm gearings of causing input and output shaft to exchange function. It will be apparent in the light of the description following hereinafter that this is essential, certainly for particular embodiments of the leg structure according to the invention.
  • the embodiment is recommended in which the right angle transmissions are mutually coupled by means of a coupling shaft having at least one cardan joint.
  • the non-round coupling parts extending in horizontal direction which can be seen as the input or output shaft of the right angle transmissions, will never lie exactly in line with each other.
  • the coupling shaft is slidable to a limited extent relative to the right angle transmissions.
  • the drive means comprise a motor.
  • the motor can be of per se known type. An inexpensive, commercially available windscreen wiper motor has for instance been found to be very suitable.
  • the motor is incorporated in a leg.
  • the motor is placed internally and can engage for instance onto the or a coupling shaft.
  • a determined embodiment is characterized by coupling means at least present on one of the right angle transmissions for coupling to another leg structure of adjustable length. It will be apparent that it is preferred that all leg structures of a table are coupled mechanically for rotation with each other by joint driving. On the one hand this limits the number of drives and therewith the costs; on the other this provides in the most natural way an exactly similar height adjustment of the various leg structures.
  • the leg structure comprises limit switches which switch off the motor when respectively a highest or lowest position has been reached. It will be apparent that with a table having more than one leg structure only one of the leg structures is required to have such limit switches.
  • Figure 1 shows a leg structure 1 of adjustable length, which comprises: a foot 2 for placing on the ground; a support 4 for coupling to a work surface 3 (see figure 2); two pillars 5, 6 of adjustable length which are rigidly connected on one side to the foot 2 and on the other to the support 4.
  • Each of these pillars 5, 6 comprises two hollow parts telescopically movable relative to one another, namely an upper part 7 that is connected to the support 4 and a lower part 8 connected to the foot 2 and provided with a spindle nut 9 which is locked against rotation and into which is screwed a screw spindle 10 mounted on the upper part 7, and a right angle transmission 11 present on the upper part 7.
  • These right angle transmissions 11 of both pillars 5, 6 are identical and of the type with bevel gear wheels.
  • a motor 12 is coupled slightly slidably via cardan transmissions 13, 14 to the horizontal shafts 15 of the right angle transmissions 11.
  • the coupling between cardan transmissions 13, 14 and the horizontal shafts of the right angle transmissions 11 takes place by means of complementary non-round parts.
  • the lower part 8 of leg 6 carries on the spindle nut 9 two limit switches 16 and 17 respectively. These limit switches can co-act respectively with a disc 18 present on the bottom end of the screw spindle 10 for defining the greatest length of leg structure 1 and with the underside of the housing of the right angle transmission 11 for defining the shortest length of leg structure 1.
  • the limit switches embodied as microswitches are connected to a feed and control unit 19 which is designated only schematically and which can be mounted at any desired location, for instance under the table top 3.
  • This unit 19 can be connected to the mains supply and drives the motor 12 via wires 20 under the control of a switch 21 (not drawn) with which the user can cause the motor 12 to turn in respectively the one or other direction and to the limit switches 16, 17 which stop the motor by terminating the energizing when the extreme positions are reached.
  • the table 22 comprises two leg structures 23, 24, wherein the leg structure 24 bears the drive motor 25 and the other leg structure 23 is driven via a coupling shaft 26 from a right angle transmission 27 of the gear wheel type. It is noted that all input and output shafts of the right angle transmission 27-30 are centrally oriented, that is, the said coupling shafts are radially oriented and the screw spindles 10 are coaxially oriented.
  • the coupling shaft 26 likewise comprises two schematically depicted cardan joints 31, 32.

Landscapes

  • Ladders (AREA)
  • Legs For Furniture In General (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Prostheses (AREA)
  • Casings For Electric Apparatus (AREA)
  • Pallets (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Fluid-Damping Devices (AREA)
EP92200503A 1991-02-22 1992-02-20 Agencement de pied de table Revoked EP0500187B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9100324 1991-02-22
NL9100324A NL9100324A (nl) 1991-02-22 1991-02-22 Pootconstructie.

Publications (2)

Publication Number Publication Date
EP0500187A1 true EP0500187A1 (fr) 1992-08-26
EP0500187B1 EP0500187B1 (fr) 1995-10-11

Family

ID=19858924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92200503A Revoked EP0500187B1 (fr) 1991-02-22 1992-02-20 Agencement de pied de table

Country Status (7)

Country Link
EP (1) EP0500187B1 (fr)
AT (1) ATE128824T1 (fr)
DE (1) DE69205302T2 (fr)
DK (1) DK0500187T3 (fr)
ES (1) ES2080426T3 (fr)
GR (1) GR3018300T3 (fr)
NL (1) NL9100324A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262030A (en) * 1991-12-06 1993-06-09 Energy Facilities Management L A levelling workstation
EP0816019A1 (fr) * 1996-07-03 1998-01-07 Knürr-Mechanik für die Elektronik AG Table de travail
DE19642387C1 (de) * 1996-10-14 1998-04-30 Veyhl Gmbh Tischfußgestell
DE19801489A1 (de) * 1998-01-16 1999-07-22 Knuerr Mechanik Ag Arbeitsplatz
EP1201154A1 (fr) * 2000-10-18 2002-05-02 Svenska Kenab Karlshamns Ergonomi AB Assemblage de pied réglable longitudinalement
EP1437066A1 (fr) * 2003-01-13 2004-07-14 La Palma s.n.c. Di Marcato Dario E Romano Table à hauteur régable
WO2022165946A1 (fr) * 2021-02-07 2022-08-11 德沃康科技集团有限公司 Dispositif d'entraînement synchrone avec un seul moteur électrique et deux excitateurs

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1008761C2 (nl) 1998-03-31 1999-10-01 Engeland Management Bv Van Inrichting voor het instellen van de hoogte van een object.
CN107307585B (zh) 2016-04-26 2019-12-20 第一传动科技股份有限公司 电动桌脚架及其联轴器和使用该桌脚架的电动桌

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE858012C (de) * 1950-09-07 1953-03-26 Franz Minet Moebelfabrik Ag Tisch, bei welchem die Tischplatte auf mindestens einem Sockel ruht
WO1983001183A1 (fr) * 1981-10-03 1983-04-14 Fleischer, Joachim Table reglable en hauteur pour postes de travail a ecran cathodique

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE858012C (de) * 1950-09-07 1953-03-26 Franz Minet Moebelfabrik Ag Tisch, bei welchem die Tischplatte auf mindestens einem Sockel ruht
WO1983001183A1 (fr) * 1981-10-03 1983-04-14 Fleischer, Joachim Table reglable en hauteur pour postes de travail a ecran cathodique

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262030A (en) * 1991-12-06 1993-06-09 Energy Facilities Management L A levelling workstation
GB2262030B (en) * 1991-12-06 1995-08-02 Energy Facilities Management L Improved workstation
EP0816019A1 (fr) * 1996-07-03 1998-01-07 Knürr-Mechanik für die Elektronik AG Table de travail
DE19642387C1 (de) * 1996-10-14 1998-04-30 Veyhl Gmbh Tischfußgestell
US5802989A (en) * 1996-10-14 1998-09-08 Veyhl Gmbh Table support structure
DE19801489A1 (de) * 1998-01-16 1999-07-22 Knuerr Mechanik Ag Arbeitsplatz
DE19801489C2 (de) * 1998-01-16 2001-11-29 Knuerr Mechanik Ag Arbeitsplatz
EP1201154A1 (fr) * 2000-10-18 2002-05-02 Svenska Kenab Karlshamns Ergonomi AB Assemblage de pied réglable longitudinalement
EP1437066A1 (fr) * 2003-01-13 2004-07-14 La Palma s.n.c. Di Marcato Dario E Romano Table à hauteur régable
WO2022165946A1 (fr) * 2021-02-07 2022-08-11 德沃康科技集团有限公司 Dispositif d'entraînement synchrone avec un seul moteur électrique et deux excitateurs

Also Published As

Publication number Publication date
GR3018300T3 (en) 1996-03-31
EP0500187B1 (fr) 1995-10-11
NL9100324A (nl) 1992-09-16
ES2080426T3 (es) 1996-02-01
DE69205302D1 (de) 1995-11-16
DE69205302T2 (de) 1996-04-04
ATE128824T1 (de) 1995-10-15
DK0500187T3 (da) 1996-02-19

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