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EP2997850A1 - Structure de support réglable en hauteur pour un plan de travail et table à hauteur réglable comprenant ladite structure de support - Google Patents

Structure de support réglable en hauteur pour un plan de travail et table à hauteur réglable comprenant ladite structure de support Download PDF

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Publication number
EP2997850A1
EP2997850A1 EP15180206.3A EP15180206A EP2997850A1 EP 2997850 A1 EP2997850 A1 EP 2997850A1 EP 15180206 A EP15180206 A EP 15180206A EP 2997850 A1 EP2997850 A1 EP 2997850A1
Authority
EP
European Patent Office
Prior art keywords
resting
leg
resting portion
base member
telescopic
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Withdrawn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
EP15180206.3A
Other languages
German (de)
English (en)
Inventor
Piero Molteni
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.)
Unifor SpA
Original Assignee
Unifor SpA
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 Unifor SpA filed Critical Unifor SpA
Publication of EP2997850A1 publication Critical patent/EP2997850A1/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Withdrawn legal-status Critical Current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
    • A47B9/00—Tables with tops of variable height
    • A47B9/20—Telescopic guides
    • 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
    • A47B13/00—Details of tables or desks
    • A47B13/003—Connecting table tops to underframes
    • 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
    • A47B13/00—Details of tables or desks
    • A47B13/02—Underframes
    • 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
    • A47B91/00—Feet for furniture in general

Definitions

  • the present invention relates to a height-adjustable support structure for a worktop, in particular of an item of furniture. Furthermore, the present invention relates to a height-adjustable table having such a support structure.
  • Support structures are well known, which are suitable to support a worktop of an item of furniture, for example the worktop of a table, capable of operatively adjusting the height of the worktop from a floor on which the structure is placed, so as to adapt the height of the work to the dimensions of user who, when seated, places his/her legs under the table.
  • Support structures comprising telescopic legs capable of modifying the length thereof by means of an actuating device, at times motorized, thereby modifying the distance of the worktop from the floor.
  • a force F transversely to the table in particular to the telescopic legs, for example, to apply a force to the worktop which is parallel to the worktop.
  • This force F generates an applied torque which tends to cause the table to rotate about the aforesaid straight line passing through the ends of the base member.
  • Such a torque has intensity given by the product of the force F applied parallel to the worktop and the arm b of the force F, that is the distance of the axis of rotation of the structure, that is the aforesaid straight line, from the straight line on which F lies.
  • none of these embodiments proposes a height-adjustable support structure of a worktop, for example of a table, which simultaneously guarantees increased balance stability and increased comfort of use.
  • a height-adjustable item of furniture for example a height-adjustable table, which is stable against overturning and is simultaneously comfortable to use by leaving free the space under the worktop.
  • a height-adjustable support structure for a worktop of an item of furniture for example of a table, comprises at least one first telescopic leg having a lower end and at least one second telescopic leg having a lower end;
  • the fact of providing three different resting portions arranged at the vertexes of a triangle, in other words arranged misaligned from each other and far from each other, wherein a first arm portion rigidly connects the first resting portion with the second resting portion, and a second arm portion rigidly connects the first resting portion with the third resting portion, allows providing a support structure which is simultaneously stable against overturning and comfortable for the user because it leaves the space under the resting plane free from obstacles.
  • a base member like the one claimed provides a resting stability comparable to the one that would be provided by a base member delimited by a continuous rectilinear edge passing through the ends of the second and third base portion and facing a user, for example a rectangular or triangular plate, which would be much more cumbersome.
  • the base body of the present invention instead leaves free most of the space comprised between the first arm portion and the second arm portion, thus allowing increased freedom of movement and use by the user.
  • the first arm portion and the second arm portion comprise respective flat resting surfaces which are coplanar with each other and lying along said base plane, thus forming a single, continuous flat resting surface together with the resting surfaces of said first resting portion, said second resting portion and said third resting portion.
  • the base member is made in one piece, thus forming a single, continuous plate-shaped or tubular body.
  • the base member is very sturdy, in addition to being affordable to make.
  • the structure provides an overall pleasant, lightweight appearance due to the reduced thickness of such a member.
  • the base member is substantially in the shape of a boomerang in which the first arm portion and the second arm portion extend along respective main paths which are in the shape of circumference arcs with non-coincident centers of curvature, lying on the base plane.
  • Such an embodiment allows the resting efficiency to be optimized in addition to providing a smooth and soft appearance.
  • a height-adjustable item of furniture for example a height-adjustable table, comprising
  • the lifting device is hidden inside each of said at least one first telescopic leg and at least one second telescopic leg, and the actuator is hidden inside a supporting bracket secured at the upper end of each leg.
  • a height-adjustable support structure for a worktop of an item of furniture is indicated as a whole with numeral 10.
  • a support structure 10 is suitable to support a worktop 60, for example a table or a desk or an office workstation, and to adjust as pleased the height of it from the floor between a minimum height and a maximum height.
  • the support structure 10 comprises at least one first telescopic leg 30 having a lower end 31, and at least one second telescopic leg 40 having a lower end 41, and a base member 20 suitable to be rested on a floor 200 and to rigidly connect with each other the lower end 31 of the at least one first leg 30 and the lower end 41 of the at least one second leg 40.
  • the base member 20 comprises a first resting portion 11, a second resting portion 12 and a third resting portion 13, which are suitable to be rested on the floor 200.
  • the base member 20 further comprises a first arm portion 21 which rigidly connects the first resting portion 11 with the second resting portion 12, and a second arm portion 22 which rigidly connects the first resting portion 11 with the third resting portion 13.
  • the base member 20 is avoided from directly connecting with each other the second resting portion 12 and the third resting portion 13.
  • the base member 20 avoids occupying the space interposed between the first arm portion 21 and the second arm portion 22, in particular leaving it free from any component and from any structural connecting member between the second resting portion 12 and the third resting portion 13.
  • the shape of the base member 20 is such as to avoid comprising connecting material or any connecting member, interposed between the first arm portion 21 and the second arm portion 22.
  • the first arm portion 21 and the second arm portion 22 are structurally connected with each other only by means of the first resting portion 11, in particular thus avoiding any other structural connecting member between the first arm portion 21 and the second arm portion 22.
  • the base member 20 comprises the first arm portion 22 interposed between the first resting portion 11 and the second resting portion 13, and the second arm portion 22 interposed between the first resting portion 11 and the third resting portion 13.
  • the first resting portion 11 and the second resting portion 12 define a first base line b1 passing through the first resting portion 11 and through the second resting portion 12.
  • first resting portion 11 and the third resting portion 13 define a second base line b2 passing through the first resting portion 11 and the third resting portion 13.
  • the first base line b1 and the second base line b2 are incident with each other at the first resting portion 11 and form with each other a preset aperture angle A, less than 180°.
  • the value of the aperture angle A may be selected to guarantee the maximum resting stability on the basis of the dimensions and the geometry of the worktop.
  • the aperture angle A ranges between 30° and 160°, preferably about 120°.
  • the first resting portion 11, the second resting portion 12 and the third resting portion 13 lie on a same base plane P-P and are arranged according to the vertexes of a triangle.
  • the second resting portion 12 and the third resting portion 13 define an end line t passing through the second resting portion 12 and the third resting portion 13.
  • the first resting portion is far from such an end line t, in particular thus avoiding to pass through such an end line t.
  • first resting portion 11, the second resting portion 12 and the third resting portion 13 are misaligned from each other and are far from each other.
  • the second resting portion 12 and the third resting portion 13 form respective end portions of said base member 20. Furthermore, the at least one first leg 30 is secured to the first arm portion 21 and the at least one second leg 40 is secured to the second arm portion 22.
  • the at least one first leg 30 is secured at an intermediate zone of the first arm portion 21 and the at least one second leg 40 is secured at an intermediate zone of the second arm portion 22.
  • said at least one first leg 30 is secured at a middle zone of the first arm portion 21 and the at least one second leg 40 is secured at a middle zone of the second arm portion 22.
  • the at least one first leg 30 is secured to the first arm portion 21 and the at least one second leg 40 is secured to the second arm portion 22, thus avoiding the at least one first leg 30 and the at least one second leg 40 from being secured to the first resting portion 11, and/or thus avoiding the at least one first leg 30 and the at least one second leg 40 from being secured to the second resting portion 12 and to the third resting portion 13.
  • the first resting portion 11, the second resting portion 12 and the third resting portion 13 comprise respective flat resting surfaces 11', 12', 13' which are coplanar and lying along said base plane P-P.
  • first arm portion 21 and the second arm portion 22 comprise respective flat resting surfaces 21', 22' which are coplanar with each other and lying along said base plane P-P, thus forming a single, continuous flat resting surface 20' together with the resting surfaces 11', 12', 13' of said first resting portion 11, said second resting portion 12 and said third resting portion 13.
  • the base member 20 is made in one piece, thus forming a single, continuous plate-shaped or tubular body, in particular comprising, in sequence, the second resting portion 12, the first arm portion 21, the first resting portion 11, the second arm portion 22 and the third resting portion 13.
  • the first arm portion 21 has a first main path of extension c1 and the second arm portion has a second main path of extension c2, in which the first main path of extension C1 and the second main path of extension C2 are incident with each other at the first resting portion 11, in particular thus forming an angle with each other.
  • the base member 20 is substantially in the shape of a boomerang wherein the second resting portion 12 and the third resting portion 13 are arranged at the free ends of the base member 20, and the first resting portion 11 is arranged at a vertex of the base member 20, wherein the first arm portion 21 and the second arm portion 22 extend along respective main paths of extension c1, c2 which are in the shape of circumference arcs with non-coincident centers of curvature, lying along the base plane P-P.
  • the centers of curvature of the main paths of extension c1, c2 are arranged on the same side with respect to the end line t passing through the second resting portion 12 and the third resting portion 13.
  • the base member 20 is substantially V-shaped, having the second resting portion 12 and the third resting portion 13 arranged at the opposite free ends of the base member 20 and the first resting portion 11 arranged at the vertex of the V shape.
  • first arm portion 21 and the second arm portion 22 are flat strips which extend along straight lines.
  • the length of the first arm portion 21 measured between the first resting portion 11 and the second resting portion 12 is substantially equal to the length of the second arm portion 22 measured between the first resting portion 11 and the third resting portion 13.
  • the first arm portion 21 is substantially equal to the second arm portion 22.
  • the base member 20 has a symmetrical shape with respect to a plane S-S orthogonal to the end line t and passing through the first resting portion 11.
  • the first arm portion 21 and the second arm portion 22 are in the shape of a flat, continuous strip which extends along a path of extension c1, c2 having constant width d measured transversely to the main path c1, c2.
  • the base member 20 forms a continuous strip of substantially constant width measured orthogonally to a main path of extension c1, c2 of the base member 20 and parallel to the base plane P-P.
  • the at least one first leg 30 and the at least one second leg 40 have a cross-section transverse to the direction of lengthening, in which such a transverse cross-section is contained within the width d of the first arm portion 21 and of the second arm portion 22.
  • the at least one first leg 30 and the at least one second leg 40 have a substantially circular-shaped cross-section transverse to the direction of lengthening, in particular with diameter substantially equal to the width d of the first arm portion 21 and of the second arm portion 22 measured orthogonally to a main path of extension c1, c2 of the base member 20 and parallel to the base plane P-P.
  • the support structure 10 comprises a single first telescopic leg 30 having a lower end 31 secured in an intermediate point of said first arm portion 21, and a single second telescopic leg 40 having a lower end 41 secured at an intermediate point of said second arm portion 22.
  • the support structure 10 does not have any further first telescopic legs 30 or further second telescopic legs 40.
  • the support structure 10 comprises exactly two telescopic legs 30, 40 of which one single first telescopic leg 30 and one single second telescopic leg 40, and does not have any further first or second telescopic legs 30, 40.
  • Such a configuration allows an aesthetically lightweight structure to be obtained while simultaneously being easy for the user to actuate to raise/lower the worktop, as only two telescopic legs overall require actuating in a controlled manner.
  • said single first telescopic leg 30 is secured to a middle zone of said first arm portion 21, and said single second telescopic leg 40 is secured to a middle zone of said second arm portion 22.
  • the support structure 1 has a symmetrical shape with respect to a symmetry plane S-S orthogonal to the base plane P-P and passing through the first resting portion 11. Such a configuration provides increased structural balance.
  • a height-adjustable item of furniture for example a height-adjustable table, comprising a support structure 10 as described above.
  • the item of furniture 1, or table comprises a worktop 60 supported by the support structure 10 and secured to it.
  • Each of said at least one first telescopic leg 30 and at least one second telescopic leg 40 comprises a telescopic lifting device 110 and an actuator 101 for actuating said lifting device 110.
  • the telescopic lifting device 110 may be any known device which causes an upper end member 53 of the telescopic leg 30, 40 to move with respect to a lower end member 51 of the telescopic leg 30, 40, for example a screw-nut screw system.
  • the actuator is, for example, a rotary electric motor for generating a relative rotation between the screw and the nut screw (not shown in the drawings).
  • the item of furniture further comprises a synchronization unit 102 for synchronizing the movement of said at least one first telescopic leg 30 and at least one second telescopic leg 40.
  • the synchronization unit is connected to the actuator 101 of each of said at least one first telescopic leg 30 and at least one second telescopic leg 40.
  • the synchronization control unit 102 is an electronic control unit configured to actuate, in a controlled manner, the actuator 101, in particular an electric motor, of each of said at least one first telescopic leg 30 and at least one second telescopic leg 40, for example on the basis of a command set by a user.
  • each of said at least one first telescopic leg 30 comprises a supporting bracket 33 interposed between an upper end 32 of the telescopic leg 30 and the worktop 60
  • each of said at least one second telescopic leg 40 comprises a supporting bracket 43 interposed between an upper end 42 of the telescopic leg 40 and the worktop 60.
  • the supporting brackets 33 and 43 preferably comprise a box-shaped portion containing a compartment for receiving the electric motor 101, and securing portions for securing bracket 33, 34 to the worktop 60.
  • the lifting device 110 is hidden inside each of said at least one first telescopic leg 30 and second telescopic leg 40.
  • the actuator 101 is an electric motor hidden inside each supporting bracket 33, 43, preferably inside the compartment in the boxlike portion.
  • the electronic control unit is secured to a lower face of the worktop 60. Thereby, the control unit is hidden from view during use, but is easy to reach in case maintenance is required.
  • the item of furniture comprises a command box 103 for receiving a raising/lowering command of the worktop from a user.
  • Such a command box 103 is preferably secured to a lower face of the worktop 60 and close to an edge of the worktop, operatively facing towards a user.
  • the whole height-adjustment system of the item of furniture 1, or table, comprising lifting devices, synchronization control unit, wiring, is completely hidden from view thus giving the item of furniture an increased aesthetical value due to the lightweight, linearity and simplicity of the shapes.
  • such an item of furniture is extremely resistant against overturning when it is stressed with a force transversal to the telescopic legs, also under the condition of maximum lengthening of the telescopic legs, and therefore of maximum height of the worktop. This allows increased balance stability of the structure to be obtained while allowing the structure not to be secured to the floor and thus allowing easy repositioning.

Landscapes

  • Legs For Furniture In General (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
EP15180206.3A 2014-09-19 2015-08-07 Structure de support réglable en hauteur pour un plan de travail et table à hauteur réglable comprenant ladite structure de support Withdrawn EP2997850A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI20141608 2014-09-19

Publications (1)

Publication Number Publication Date
EP2997850A1 true EP2997850A1 (fr) 2016-03-23

Family

ID=51904046

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15180206.3A Withdrawn EP2997850A1 (fr) 2014-09-19 2015-08-07 Structure de support réglable en hauteur pour un plan de travail et table à hauteur réglable comprenant ladite structure de support

Country Status (5)

Country Link
US (1) US20160081468A1 (fr)
EP (1) EP2997850A1 (fr)
AU (1) AU2015213376A1 (fr)
CA (1) CA2900270A1 (fr)
DE (1) DE102015217934A1 (fr)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
CN110269413A (zh) * 2019-07-16 2019-09-24 照彰实业（东莞）有限公司 智能塔台

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WO2013176690A1 (fr) 2012-05-24 2013-11-28 Gemmy Industries Corporation Plateforme de bureau réglable
USD790268S1 (en) * 2014-09-19 2017-06-27 Unifor S.P.A. Structure for a height-adjustable table
USD784741S1 (en) * 2015-10-16 2017-04-25 Kohler Co. Table
JP1571594S (fr) * 2016-06-07 2017-03-13
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
US10342328B2 (en) * 2017-10-12 2019-07-09 Eddie Rafii Self-stabilizing system and method for long table
US10993527B2 (en) * 2017-11-27 2021-05-04 Thermogenesis Group, Inc. Powered sit-stand desk
DE102018104195A1 (de) * 2018-02-23 2019-08-29 Logicdata Electronic & Software Entwicklungs Gmbh Möbelstück, Verfahren zum Kalibrieren eines Aktuators und Verfahren zum Verstellen einer Komponente eines Möbelstücks
US11457740B2 (en) 2019-08-04 2022-10-04 Rockless Table LLC Locking device and stabilizer for a stabilizing table

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US5370063A (en) * 1993-03-01 1994-12-06 Childers; C. Lee Non-binding cantilevered table lifting device
US20070068429A1 (en) * 2005-09-20 2007-03-29 Brian Frazier Ergonomic workstation with raising and lowering elements
US20080135697A1 (en) * 2004-12-30 2008-06-12 Swift Distribution, Inc. Musical Instrument Support Methods and Apparatus

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Publication number Priority date Publication date Assignee Title
DE8910850U1 (de) * 1989-09-12 1989-10-26 Heupel, Michael, 2000 Hamburg Tisch, dessen Tischplatte auf mindestens einer vertikalen in der Höhe verstellbaren Stütze gelagert ist
US5370063A (en) * 1993-03-01 1994-12-06 Childers; C. Lee Non-binding cantilevered table lifting device
US20080135697A1 (en) * 2004-12-30 2008-06-12 Swift Distribution, Inc. Musical Instrument Support Methods and Apparatus
US20070068429A1 (en) * 2005-09-20 2007-03-29 Brian Frazier Ergonomic workstation with raising and lowering elements

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110269413A (zh) * 2019-07-16 2019-09-24 照彰实业（东莞）有限公司 智能塔台

Also Published As

Publication number Publication date
CA2900270A1 (fr) 2016-03-19
DE102015217934A1 (de) 2016-03-24
US20160081468A1 (en) 2016-03-24
AU2015213376A1 (en) 2016-04-07

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