EP0476316A1 - Table de travail ou de bureau - Google Patents

Table de travail ou de bureau Download PDF

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Publication number
EP0476316A1
EP0476316A1 EP91113756A EP91113756A EP0476316A1 EP 0476316 A1 EP0476316 A1 EP 0476316A1 EP 91113756 A EP91113756 A EP 91113756A EP 91113756 A EP91113756 A EP 91113756A EP 0476316 A1 EP0476316 A1 EP 0476316A1
Authority
EP
European Patent Office
Prior art keywords
support arm
work
dovetail guide
drive
office table
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
EP91113756A
Other languages
German (de)
English (en)
Other versions
EP0476316B1 (fr
Inventor
Daniel Korb
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.)
Dyes Bueromobelfabrik GmbH
Original Assignee
Dyes Bueromobelfabrik GmbH
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 Dyes Bueromobelfabrik GmbH filed Critical Dyes Bueromobelfabrik GmbH
Publication of EP0476316A1 publication Critical patent/EP0476316A1/fr
Application granted granted Critical
Publication of EP0476316B1 publication Critical patent/EP0476316B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47B17/00—Writing-tables
    • A47B17/02—Writing-tables with vertically-adjustable parts
    • 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
    • A47B2200/0011—Underframes
    • A47B2200/0013—Desks with central bearing beams

Definitions

  • the invention relates to a work or office table with a height and / or incline adjustable worktop, which is supported by two pairs of pivotable support arms on the crossbar of the table frame, one pair of the support arms to the front and the other pair of the support arms to the rear the worktop are directed and there are articulated on slides, which are adjustable on the underside of the worktop in guide rails running from the front to the rear, in which an arcuate, convex arched web is arranged on the longitudinal sides of the crossbar per support arm, and in which the Support arms are pivotable by means of a drive with a drive gear.
  • Such a work or office table is known from DE-OS 39 33 237.
  • the table frame consists of two side walls, the upper ends of which are connected to each other by means of the crossbar.
  • On the crossbar one end of the support arms is articulated, while the other ends are supported in an articulated manner on the worktop or on connecting blocks adjustable in guide rails. Threaded rods are provided as drive elements, on which the connection blocks can be adjusted in pairs or together.
  • the long sides of the trough-shaped crossbar are designed as hollow bodies. It is also known from this to form a dovetail guide web in a U-shape.
  • the inclusion of a worm wheel, which is in engagement with a worm shaft, in the drive for the support arms can also be found in this prior art.
  • the support arms taper to the ends facing the worktop and run out in articulated lugs in order to attach the support arms to the worktop in an articulated manner.
  • a work or office table with pairs of support arms for the worktop is also known from DE-OS 30 39 180.
  • the support arms which can be adjusted in pairs, can be pivoted together or in pairs in order to change the height and / or the inclination of the worktop.
  • drive elements with threaded rods and adjustable threaded blocks thereon and a pair of scissors for each support arm are provided. This expenditure on drive elements is increased by the coupling elements which are required for the simultaneous pivoting of the pair of support arms assigned to one side of the worktop. This effort is justified only if the height and / or the inclination of the worktop has to be changed frequently.
  • the support arms designed in this way are not advantageous from a design point of view.
  • each support arm is composed of two shell-shaped support arm halves and the crossbar faces an arcuate, concave curved part-dovetail guide groove forms which surrounds the dovetail guide bar and pivotally attaches the support arm to the dovetail guide bar, and that each support arm receives a self-locking drive which can be driven by means of a drive shaft and which engages with the toothing of the dovetail guide bar by means of at least one driven gear.
  • the support arm receives the entire drive for each support arm, so that only the access to the drive shaft is visible.
  • the drive shafts of the support arms can be coupled as required and the various setting options for the worktop can be achieved.
  • the pivoting of the support arms on the table frame is improved, since there is extensive support during the entire pivoting movement of the support arms.
  • the ends of the support arms facing the crossbar can fully cover the dovetail guide webs, so that an elegant transition between the crossbar and the support arms is also obtained.
  • This transition is also adapted and optimized to the swiveling movement in that the dovetail guide web is U-shaped, the side legs merging into web ends that are angled outward at right angles, and that two toothings are arranged between the side legs of the dovetail guide web are engaged with two output gears, which on one in the support arm halves are rotatably mounted output shaft.
  • connection between the crossbeam and the dovetail guide webs is made more stable in that the long sides of the trough-shaped crossbeam have side walls designed as hollow profiles, into which insert connectors can be inserted, and in that the dovetail guide webs are connected through the side walls of the crossbar to the inserted insert connectors , e.g. are screwed.
  • the drive in the support arm is designed such that a worm wheel is arranged on the output shaft in a rotationally fixed manner between the two output gears, which worm is in engagement with a worm shaft rotatably mounted on the worm arm halves so that the worm shaft rotatably carries a toothed belt wheel , which is in operative connection via an endless toothed belt with a drive toothed belt wheel, and that the drive toothed belt wheel is seated in a rotationally fixed manner on the drive shaft which is rotatably mounted in the region of the end of the support arm facing the worktop and is accessible from the outside of the support arm. Since the drive shafts are arranged in the region of the ends of the support arms facing the worktop, they can also be easily operated manually.
  • the support of the support arms on the dovetail guide webs is further improved according to a further development in that two support rollers are rotatably mounted in the support arm halves, which protrude into the partial dovetail guide grooves on both sides of the driven gears and on the end faces of the web ends of the dovetail - Support the guide bar.
  • the drive shaft, the output shaft and the worm shaft are mounted in sleeve-shaped bearing approaches of the support arm halves, it also being necessary for the drive shaft to protrude from the support arm at least at one end with a coupling section.
  • the structural design of the support arm is such that the drive shaft, the output shaft and the support rollers are aligned with their axes of rotation parallel to one another and parallel to the longitudinal axis of the crossbar and perpendicular to the parting plane of the support arm halves, and that the drive shaft and the output shaft in one Partition plane vertical center plane of the support arm are arranged and that the support rollers are symmetrical about this center plane.
  • the design is also such that the support arms taper towards the ends facing the worktop and are provided with hinged straps.
  • the drive can be simplified in that the drive shafts of the front arms and the drive shafts of the support arms assigned to the rear of the worktop are each connected to one another in a rotationally fixed manner by means of a coupling rod and can be driven together, since the pairs of support arms are then always pivoted equally.
  • the coupling rods can be driven individually and optionally in one or the other direction of rotation, then either the front or the back of the worktop can be raised or lowered.
  • the coupling rods can be driven jointly and optionally in one or the other direction of rotation, then the entire worktop can optionally be raised or lowered. This can also be done optionally with the individual drive of the coupling rods.
  • the coupling rods can be driven jointly and optionally in the same or in opposite directions of rotation. This also enables counter-movements of the front and rear of the worktop to be realized.
  • Fig. 1 the table frame 10 of a work or office table is shown in a perspective front view.
  • the crossbar 11 firmly connects the upper ends of the table legs 54 to one another.
  • the short foot elements 55 are attached directed towards the rear of the work or office table, while the long foot elements 56 extend towards the front.
  • the end faces of the crossbar 11 are covered by covers 19.
  • the worktop carries on its underside the guide rails 52 directed from the front to the rear, in which slides are adjustably guided. These slides are articulated to the link plates 53, which are formed on the facing ends of the four support arms 20.
  • the crossmember 11 has on its longitudinal edges formed as hollow profiles side walls 12 and 13, on which dovetail guide webs are attached for pivotally mounting the support arms 20, as will be shown.
  • the crossbar 11 forms with the two side walls 12 and 13 a cable channel which can be closed by means of the cover 17.
  • the support arms 20 are each composed of the two shell-shaped support arm halves 21 and 22 which receive an individually drivable, self-locking drive.
  • FIGS. 2 and 3 show the attachment of the support arms 20 to the crossbar 11 and the structure of the drive integrated in the support arm 20 for pivoting the support arm 20.
  • Insert connectors 18, which extend as far as the connection points of the support arms 20, are inserted into the end in the side walls 12 and 13 designed as hollow profiles.
  • the insert connectors 18 are adapted in cross section to the cross section of the hollow profiles.
  • hollow profiles are formed which have a semicircular cross section.
  • the convexly curved sections 14 are turned outwards, while the straight, vertical sections 15 laterally delimit the cable duct.
  • the transitions from the convexly curved sections 14 to the straight vertical sections 15 are formed in the region of the open upper side of the crossbar 11 as stepped connecting sections 16, which latch a connecting web or a connecting spring of the cover 17.
  • the cross-beam 11 can be produced in one piece as a sheet-metal profile section.
  • the dovetail guide webs 44 are attached to the convexly curved sections 14, the fastening screws extending through the side walls 12 and 13 and being screwed into threaded receptacles or insert connectors 18.
  • the dovetail guide webs 44 are arcuate and convex, so that they form a swivel path for the support arms 20.
  • the support arm halves 21 and 22 are directed towards each other with the open sides, form a receiving space for the drive and run facing the crossbar 11 in partial dovetail guide grooves 23 and 24, which enclose the dovetail guide web 44 with the web ends 50 on its side legs . Between the side legs of the dovetail guide web 44, following the side legs, run the two correspondingly extending toothings 42 and 43, which are inserted or integrally formed on the dovetail guide web 44.
  • the gears 40 and 41 are engaged, which are non-rotatably seated on the output shaft 38.
  • the output shaft 38 is rotatably mounted in the sleeve-shaped bearing lugs 36 and 37 of the support arm halves 21 and 22. Between the two gears 40 and 41, the output shaft 38 rotatably carries the worm gear 39, which is in engagement with the worm 35.
  • the worm 35 is non-rotatably seated on the bearing shaft 45, which is also at least partially rotatably supported in the support arm halves 21 and 22 by means of bearing bushes 49.
  • the bearing shaft 45 rotatably supports the toothed belt wheel 46.
  • the drive shaft 30 with the fixed drive toothed belt wheel 33 is rotatably mounted in the bearing lugs 28 and 29. As the ends of the drive shaft 30 show, it can be actuated from the outside of the support arm 20.
  • the bearing section 32 is flush with the support arm half 22, while the other end projects as a coupling section 31 on the support arm half 21 and can be used to connect the coupling rod 51.
  • the drive toothed belt wheel 33 is operatively connected to the toothed belt wheel 46 via the endless toothed belt 34.
  • the two support rollers 47 and 48 are mounted in the support arm halves 21 and 22 so that they protrude on both sides of the gears 40 and 41 and are supported on the end faces of the web ends 50 of the dovetail guide web 44.
  • the two support arm halves 21 and 22 are connected to one another by connecting screws 27 which are guided in screw connections 26 of the support arm half 22 and are screwed into the threaded connection 25 of the support arm half 21.
  • This drive is self-locking due to the large reduction achieved via the worm 35 and the worm wheel 39, so that the drive is not actuated in the lowering direction even when the worktop is loaded.
  • the pairs of support arms 20 can be pivoted individually or together by the coupling rods 51, the coupling rods 51 being able to be actuated in two directions of rotation. It is possible to raise or lower only the front of the worktop or only the back of the worktop. With the simultaneous actuation of the coupling rods 51, it is possible to raise or lower the worktop as a whole regardless of its set inclination. Yes, even an opposing adjustment of the front and the back of the worktop is possible only through the simultaneous but opposite pivoting of the support arms 20.

Landscapes

  • Workshop Equipment, Work Benches, Supports, Or Storage Means (AREA)
  • Transmission Devices (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Machine Tool Units (AREA)
  • Pivots And Pivotal Connections (AREA)
EP91113756A 1990-09-07 1991-08-16 Table de travail ou de bureau Expired - Lifetime EP0476316B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4028454A DE4028454A1 (de) 1990-09-07 1990-09-07 Arbeits- oder buerotisch
DE4028454 1990-09-07

Publications (2)

Publication Number Publication Date
EP0476316A1 true EP0476316A1 (fr) 1992-03-25
EP0476316B1 EP0476316B1 (fr) 1994-06-01

Family

ID=6413830

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91113756A Expired - Lifetime EP0476316B1 (fr) 1990-09-07 1991-08-16 Table de travail ou de bureau

Country Status (4)

Country Link
US (1) US5241914A (fr)
EP (1) EP0476316B1 (fr)
AT (1) ATE106206T1 (fr)
DE (2) DE4028454A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4436166C2 (de) * 1994-01-28 1997-01-09 Kusch Co Sitzmoebel Untergestell für Tischplatten für Einzel- und Reihentische
US6102808A (en) * 1998-12-10 2000-08-15 Wan Chao Wood Industrial Co., Ltd. Height-adjustable billiard table
DE10124316B4 (de) * 2001-05-17 2006-05-11 Karl-Heinz Baumeister Säule für höhenverstellbare Möbelelemente
US8146514B2 (en) * 2007-06-01 2012-04-03 Steelcase Inc. Table construction
US8307769B1 (en) 2009-07-31 2012-11-13 Mity-Lite, Inc. Plastic and plywood laminate table with drop corner
US9210999B2 (en) 2010-06-02 2015-12-15 Steelcase Inc. Frame type table assemblies
US8667908B2 (en) 2010-06-02 2014-03-11 Steelcase Inc. Frame type table assemblies
US8534752B2 (en) 2010-06-02 2013-09-17 Steelcase Inc. Reconfigurable table assemblies
US9185974B2 (en) 2010-06-02 2015-11-17 Steelcase Inc. Frame type workstation configurations
US8550012B2 (en) 2011-10-27 2013-10-08 Mity-Lite, Inc. Leg locking and folding mechanism for folding table
US8671850B2 (en) 2011-10-27 2014-03-18 Mity-Lite, Inc. Convertible tabletop with pivotal modesty panel
US10039374B2 (en) 2016-05-13 2018-08-07 Steelcase Inc. Multi-tiered workstation assembly
US10517392B2 (en) 2016-05-13 2019-12-31 Steelcase Inc. Multi-tiered workstation assembly
CN108577378B (zh) * 2018-04-04 2021-10-22 深圳市卖点科技股份有限公司 一种新型化妆品贩卖用展示台

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633168A1 (fr) * 1988-06-24 1989-12-29 Technal Snc Element de structure, notamment pour mobilier du genre table, bureau ou analogue
EP0364822A2 (fr) * 1988-10-19 1990-04-25 Dyes Gmbh Büromöbelfabrik Table avec cadre et surface de travail ainsi que dispositif de positionnement pour varier la hauteur et l'inclinaison de la surface de travail

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2046487A1 (de) * 1969-09-22 1971-05-27 Rouget, Pierre Marseille (Frankreich) Zeichentisch
DE3039180A1 (de) * 1980-10-17 1982-09-30 Planmöbel Eggersmann KG, 4992 Espelkamp Buerotisch
CA1211490A (fr) * 1982-10-27 1986-09-16 Innovative Metal, Inc. C/O/B/A Kinetics Furniture Pupitre a raccords d'electricite et de telephonie
SE446499B (sv) * 1984-03-16 1986-09-22 Lars Johansson Anordning vid ett bord som innefattar en hoj- och senkbar bordsskiva
US4615279A (en) * 1984-12-21 1986-10-07 Haye Cornelis Franciscus De Vertically adjustable table
EP0260739B1 (fr) * 1986-09-15 1994-07-06 TECNO S.p.A. MOBILI E FORNITURE PER ARREDAMENTO Structure de support pour tables et pupitres de bureau comprenant ceux présentant plusieurs plan de support
DE3835365A1 (de) * 1988-10-18 1990-04-19 Gesika Bueromoebelwerk Gmbh Vorrichtung zum verbinden einer schreibtischplatte mit einem traggestell
DE3933237A1 (de) * 1988-10-19 1990-04-26 Daniel Korb Tisch mit tischgestell und tischplatte sowie stelleinrichtung zum veraendern der hoehe und neigung der tischplatte
IT1229349B (it) * 1989-05-05 1991-08-08 Coopsette Scrl Struttura portante per tavoli e simili mobili per ufficio con inserimento trasversale di cavi di servizio.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2633168A1 (fr) * 1988-06-24 1989-12-29 Technal Snc Element de structure, notamment pour mobilier du genre table, bureau ou analogue
EP0364822A2 (fr) * 1988-10-19 1990-04-25 Dyes Gmbh Büromöbelfabrik Table avec cadre et surface de travail ainsi que dispositif de positionnement pour varier la hauteur et l'inclinaison de la surface de travail

Also Published As

Publication number Publication date
DE4028454A1 (de) 1992-03-12
DE59101784D1 (de) 1994-07-07
DE4028454C2 (fr) 1992-12-10
US5241914A (en) 1993-09-07
EP0476316B1 (fr) 1994-06-01
ATE106206T1 (de) 1994-06-15

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