EP0661014A2 - Dispositif pour la variation de la hauteur et/ou de l'inclinaison d'une surface de travail - Google Patents

Dispositif pour la variation de la hauteur et/ou de l'inclinaison d'une surface de travail Download PDF

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Publication number
EP0661014A2
EP0661014A2 EP94119287A EP94119287A EP0661014A2 EP 0661014 A2 EP0661014 A2 EP 0661014A2 EP 94119287 A EP94119287 A EP 94119287A EP 94119287 A EP94119287 A EP 94119287A EP 0661014 A2 EP0661014 A2 EP 0661014A2
Authority
EP
European Patent Office
Prior art keywords
table top
articulation points
support frame
inclination
adjusting
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.)
Withdrawn
Application number
EP94119287A
Other languages
German (de)
English (en)
Other versions
EP0661014A3 (fr
Inventor
Wolfgang Blume
Reinhard Tober
Hans Heinrich Oelschläger
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.)
Oelschlager Entwicklungs-Gmbh
Original Assignee
Oelschlager Entwicklungs-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 Oelschlager Entwicklungs-Gmbh filed Critical Oelschlager Entwicklungs-Gmbh
Publication of EP0661014A2 publication Critical patent/EP0661014A2/fr
Publication of EP0661014A3 publication Critical patent/EP0661014A3/fr
Withdrawn legal-status Critical Current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
    • A47B2200/002—Legs
    • A47B2200/0026—Desks with C-shaped leg
    • 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
    • A47B2200/004—Top adjustment
    • A47B2200/0041—Height adjustable table top with parallel link arms
    • 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
    • A47B2200/004—Top adjustment
    • A47B2200/0042—Height and inclination adjustable desktop, either separately or simultaneously
    • 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
    • A47B2200/004—Top adjustment
    • A47B2200/0043—Inclination adjustable work top

Definitions

  • the invention relates to a device for selectively adjusting the height and / or inclination of a table top or the like using front and rear links, which are arranged between this and a support frame, which is particularly fastened to a crossbar (e.g. a cable duct) of a table frame.
  • a crossbar e.g. a cable duct
  • the axes or worm pinions are shifted on both sides by the same amount in the opposite direction, as a result of which the articulation points are raised or lowered.
  • the table top is tilted by moving only one, namely the right worm pinion.
  • the worm pinions are actuated simultaneously by means of the lower spindles (right and left), which are coupled to one another, while the right worm pinion is moved alone, since the upper right spindle is not coupled to the upper left spindle.
  • This known mechanism is relatively complicated and tends to be stiff and blocked due to the multiple sliding guides.
  • the present invention has for its object to provide a device for adjusting the height and / or inclination of a table top or the like relative to a support frame, which is characterized by a simple robust construction and can also be retrofitted without intervention in the structure of a table frame.
  • parallelogram link guides are provided between the table top or the like and the support frame at a lateral distance from one another, the link arms of which are articulated on the one hand at the front and rear at a distance from one another on the support frame and on the other hand at the front and rear at a distance from one another on the table top and are parallel to each other when the table top is in a horizontal position so that the parallelograms can be folded together for height adjustment without changing the distances between the front and rear by means of an adjustment device and that only the front or rear articulation points of the handlebar arms for deformation of the parallelograms can be adjusted by the adjustment device be moved forward or backward.
  • the device according to the invention can be retrofitted to existing table frames without the table frame having to be changed or specially adapted.
  • the device can be adjusted both on and under a crossbar of a table frame, e.g. a cable duct.
  • a specific, advantageous embodiment of the device according to the invention is characterized in that the articulation points of the handlebar arms are fixed on the support frame, while for front height adjustment the front and rear articulation points of the handlebar arms are shifted forward or backward at the same distance from one another, for inclination adjustment either the front or the rear articulation points on the table top can be moved forward or backward as the distance between them changes, and that the position of the table top relative to the supporting frame in the horizontal plane is caused by trailing arms between the rear area of the support frame and the front area of the table top (or vice versa) is kept approximately unchanged.
  • this solution not only is the operation very easy, but the position of the table top in relation to the support frame hardly changes in the horizontal plane if the circular arc described by the trailing arms in the height and inclination adjustment is large compared to the adjustment path.
  • the adjustment device is preferably carried out by threaded spindles running in nuts, either the articulation points of the handlebar arms or the length of the diagonal links (in the alternative solution) being adjusted.
  • the design of the first-mentioned solution is such that the threaded spindles arranged in the nuts of the front and rear articulation points of the handlebars can optionally be coupled via couplings to an adjusting shaft, in particular a manually operated adjusting crank.
  • the coupling can expediently take place in that the adjusting shaft is arranged displaceably in the threaded spindles designed as hollow shafts and can optionally be coupled to the threaded spindles through sections of a non-rotatable profile (eg hexagonal profile). This is done, for example, in such a way that in a front locking position the adjusting shaft is coupled only with the threaded spindle of the front articulation point (positive inclination), in a rear locking position only with the threaded spindle of the rear articulation point (negative inclination) and a central locking position with both threaded spindles (height adjustment) is.
  • a non-rotatable profile eg hexagonal profile
  • the suspension of the table top with respect to the support frame is carried out in a simple manner in particular in that the corresponding link arms of the parallelogram link guides arranged at a lateral distance from one another are connected to one another by connecting shafts in the region of the fixed articulation points and are actuated together by the adjusting device.
  • the articulation points of the handlebar arms are expediently guided on both sides of the table top by linear guides parallel to the table top.
  • These linear guides preferably have slide pieces provided with a bore, which are guided on slide rods.
  • a simple solution for coupling the adjustment movement of the adjustment device is possible in that on one side of the device the slide pieces are provided with an adjacent internal thread, into which the respectively assigned threaded spindle engages with its external thread.
  • a more closed type which simultaneously leads to a reduction of any tilting forces of the linear guides, is characterized in that nuts are provided on one side of the device within the slide pieces and the slide rods, in the internal thread of which the associated threaded spindle engages with its external thread.
  • a support frame 12 of the device is arranged and fastened on a crossbar 31 of a table frame 30 (both shown in dashed lines).
  • This crossbar 31 is preferably a transverse cable duct.
  • link arms 13 and 14 are mounted by means of two connecting shafts.
  • the link arms 13, 14 are pivotable about fixed articulation points 3, 4 and carry at their free end sliders 17, 18 and 27, 28 which are linearly guided on slide rods 19 arranged on both sides.
  • the slide rods 19 are in turn fastened between two cross members 11 on which a table top 10 is mounted.
  • the link arms 13 and 14 are pivotally mounted on the sliders 17, 18 and 27, 28, respectively, and displaceable articulation points 1, 2 are formed at these points.
  • a trailing arm 26 is arranged between a pivot point 5 in the front cross member 11 and a pivot point 6 in the rear region of the support frame 12 on both sides of the mechanism in order to fix the cross member 11 and thus the table top 10 in the horizontal plane.
  • the relatively long trailing arm 26 describes a relatively large circular arc, so that the position of the table top 10 relative to the table frame 30 hardly changes.
  • the articulation points 1 and 2 can be moved relative to the cross members 11 by moving the sliding pieces 17, 18 and the sliding pieces 27, 28 which move with them via the connecting shafts 29, so that in cooperation with the trailing arms 26 a height and / or inclination adjustment of the table top 10 is opposite the support frame 12 takes place. This will be explained with reference to FIGS. 3a-3d.
  • Fig. 3a shows an adjustment of the table top 10 at a medium height without inclination to the support frame 12.
  • an adjusting device 20 in the form of an adjusting crank 23
  • the articulation points 1 and 2 can now optionally be moved relative to the cross members 11 in the forward-backward direction of the table become.
  • both articulation points 1, 2 are shifted to the left (see FIG. 3b, solid lines), the parallelogram formed between articulation points 1, 2, 3, 4 is brought into a flatter shape due to the effect of the trailing arms 26 and the table top 10 lowered relative to the support frame 12. If both articulation points 1, 2 are shifted to the right while the distance between the two remains constant (in the drawing), the table top 10 is raised (dashed position in FIG. 3b). It is important with this height adjustment that the distance between the articulation points 1, 2 remains the same as the distance between the fixed articulation points 3, 4, that is to say both articulation points 1, 2 are displaced synchronously with respect to the cross members 11.
  • FIG. 3c shows, starting from the basic position according to FIG. 3a, how the table top 10 is inclined positively (that is to say forward).
  • the articulation point 1 in the drawing
  • the articulation point 2 remains in the basic position (FIG. 3a).
  • the parallelogram formed between the articulation points 1, 2, 3 and 4 is distorted, i.e. it is no longer a parallelogram, but only a square with two identical sides (the links 13, 14).
  • Fig. 3d shows, starting from the basic position according to Fig. 3a, an inclination adjustment in the negative direction, i.e. a backward slope.
  • a backward slope i.e. a backward slope
  • the adjusting device 20 of the first exemplary embodiment will now be described with reference to FIG. 4 and the detailed representations 4a, 4b, and 4c.
  • the detailed section according to FIG. 1 a of FIG. 1, which shows the closer area around the slide 17, is also included.
  • the sliders 17 and 18 on one side of the table (in contrast to the sliders 27, 28 on the other side of the table) not only serve for linear guidance on the slide rod 19, but they have an internally threaded bore on the side, in each of which a threaded spindle 21 or 22 is arranged.
  • the threaded spindles 21, 22 are fixed with respect to the cross members 11 in the axial direction by stop disks 25, and when they rotate, the sliding pieces 17, 18 move in the longitudinal direction of the threaded spindles 21, 22. This movement is then also transmitted to the other sliding pieces 27 via the connecting shaft 29 , 28 transferred.
  • the adjusting device 20 has an adjusting shaft 24 which is guided through both threaded spindles 21, 22.
  • the adjusting shaft 24 has two hexagonal sections 24a and 24b which engage in a corresponding hexagonal section in the interior of the threaded spindles 21, 22 and take them with them for the purpose of rotation.
  • any other non-rotatable profile can be used instead of a hexagon.
  • either the hexagonal section 24a can be brought into engagement with the threaded spindle 21 or the hexagonal section 24b with the threaded spindle 22, or can engage in a central position both sections 24a and 24b into the threaded spindles 21, 22.
  • the sliders 17 and 18, i.e. the articulation points 1 and 2 are simultaneously displaced so that a height adjustment takes place (see Fig. 3b).
  • FIG. 5 shows the area of the slider 17 enlarged.
  • the threaded spindles 21, 22 are not arranged laterally next to the slide rods 19, but within this slide rod 19 and within the slide pieces 17 and 18. This has the advantage that the mechanism is more closed and is less sensitive to dirt and, moreover, fewer canting forces occur during the transmission of the longitudinal movement from the threaded spindles 21, 22 to the sliding guide pieces 17, 18.
  • the adjusting forces of the threaded spindles 21, 22 thus act symmetrically on the link arms 13, 14.
  • the sliders 17, 18 are of identical design, and each consists (see FIG. 5a) of a slide bush 17a, which is guided linearly on a slide rod 19. Inside the hollow slide rod 19 there is a threaded nut 17c which receives the associated threaded spindle 21. A hexagon section 24a of the adjusting shaft 24 then engages in this threaded spindle 21, as previously described.
  • the nut 17c arranged in the hollow slide rod 19 is held via pins 17d of the slide bush 17a, the pins 17d penetrating a longitudinal slot (similar to the longitudinal slot 18b) in the slide rod 19. In this way, the sliding bush 17a and nut 17d are connected to one another or fixed in the longitudinal direction of the threaded spindle 21.

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  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Transmission Devices (AREA)
EP94119287A 1993-12-09 1994-12-07 Dispositif pour la variation de la hauteur et/ou de l'inclinaison d'une surface de travail Withdrawn EP0661014A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4342016 1993-12-09
DE19934342016 DE4342016A1 (de) 1993-12-09 1993-12-09 Vorrichtung zum Verstellen der Höhe und/oder Neigung einer Tischplatte

Publications (2)

Publication Number Publication Date
EP0661014A2 true EP0661014A2 (fr) 1995-07-05
EP0661014A3 EP0661014A3 (fr) 2000-02-23

Family

ID=6504587

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119287A Withdrawn EP0661014A3 (fr) 1993-12-09 1994-12-07 Dispositif pour la variation de la hauteur et/ou de l'inclinaison d'une surface de travail

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Country Link
EP (1) EP0661014A3 (fr)
DE (1) DE4342016A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706769A3 (fr) * 1994-10-14 2000-09-06 Heinrich Oelschläger Metallwarenfabrik GmbH & Co. Dispositif de réglage de la hauteur d'un plan de travail d'une table ou analogue
DE19749509C2 (de) * 1996-11-26 2002-10-17 Welle Moebel Gmbh Vorrichtung zur Einstellung der Arbeitshöhe einer Tischplatte
WO2013006097A3 (fr) * 2011-07-04 2013-03-14 Kuvakin Evgeny Yur Evich Plan de travail déplaçable avec inclinaison pour pupitres d'élève et bureaux

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020134877A1 (de) 2020-12-23 2022-06-23 Grammer Aktiengesellschaft Höhenverstellbarer Steuerhebelträger für einen Nutzfahrzeugsitz

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625883A1 (fr) * 1988-01-20 1989-07-21 Krause Robert Gmbh Co Kg Dispositif pour le reglage en inclinaison et/ou en hauteur d'un plan de travail ou de table d'un meuble
WO1992007488A1 (fr) * 1990-10-25 1992-05-14 Alex Linder Gmbh Table de travail a plusieurs plateaux de travail

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4112223C2 (de) * 1991-04-15 1994-01-20 Lampertz Fab Org Vorrichtung zum Verstellen von Arbeitsplatten

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2625883A1 (fr) * 1988-01-20 1989-07-21 Krause Robert Gmbh Co Kg Dispositif pour le reglage en inclinaison et/ou en hauteur d'un plan de travail ou de table d'un meuble
WO1992007488A1 (fr) * 1990-10-25 1992-05-14 Alex Linder Gmbh Table de travail a plusieurs plateaux de travail

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706769A3 (fr) * 1994-10-14 2000-09-06 Heinrich Oelschläger Metallwarenfabrik GmbH & Co. Dispositif de réglage de la hauteur d'un plan de travail d'une table ou analogue
DE19749509C2 (de) * 1996-11-26 2002-10-17 Welle Moebel Gmbh Vorrichtung zur Einstellung der Arbeitshöhe einer Tischplatte
WO2013006097A3 (fr) * 2011-07-04 2013-03-14 Kuvakin Evgeny Yur Evich Plan de travail déplaçable avec inclinaison pour pupitres d'élève et bureaux
RU2479240C2 (ru) * 2011-07-04 2013-04-20 Евгений Юрьевич Кувакин Столешница перемещающаяся с наклоном в учебных партах и письменных столах
CN103781381A (zh) * 2011-07-04 2014-05-07 叶夫根尼·尤尔‘叶维奇·库瓦金 用于学习桌和写字台的可同时移动和倾斜的台面
EP2730194A2 (fr) * 2011-07-04 2014-05-14 Kuvakin, Evgeniy Yur'evich Plan de travail déplaçable avec inclinaison pour pupitres d'élève et bureaux
JP2014520588A (ja) * 2011-07-04 2014-08-25 ユルエビッチ クヴァキン，エヴゲニー 学習机及び書き物テーブル用の同時に移動及び傾斜可能なワークトップ
EP2730194A4 (fr) * 2011-07-04 2015-03-04 Evgeniy Yur Evich Kuvakin Plan de travail déplaçable avec inclinaison pour pupitres d'élève et bureaux

Also Published As

Publication number Publication date
EP0661014A3 (fr) 2000-02-23
DE4342016A1 (de) 1995-06-14

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