[go: up one dir, main page]

WO2004041027A1 - Ensemble permettant la synchronisation de tubes telescopiques, utilisation dudit ensemble et procede d'utilisation de ce dernier - Google Patents

Ensemble permettant la synchronisation de tubes telescopiques, utilisation dudit ensemble et procede d'utilisation de ce dernier Download PDF

Info

Publication number
WO2004041027A1
WO2004041027A1 PCT/SE2003/001717 SE0301717W WO2004041027A1 WO 2004041027 A1 WO2004041027 A1 WO 2004041027A1 SE 0301717 W SE0301717 W SE 0301717W WO 2004041027 A1 WO2004041027 A1 WO 2004041027A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
ofthe
telescopic
tube sections
sections
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.)
Ceased
Application number
PCT/SE2003/001717
Other languages
English (en)
Inventor
Hazim Mujhic
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.)
ROL ERGONOMIC AB
Original Assignee
ROL ERGONOMIC AB
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 ROL ERGONOMIC AB filed Critical ROL ERGONOMIC AB
Priority to AU2003283895A priority Critical patent/AU2003283895A1/en
Publication of WO2004041027A1 publication Critical patent/WO2004041027A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0051—Telescopic
    • A47B2200/0054—Telescopic with three telescopic parts

Definitions

  • the invention relates to a device for multistage telescopic tubes, frequently used as height-adjustable legs, for example under terminal desks, operating and work tables, patient lifting appliances and beds etc, which are continuously adjustable with the aid manual or power-driven adjusting gear.
  • the invention relates in particular to a device for producing a controlled telescoping of multistage telescopic tubes forming legs in a construction in which the inner, moveable tube sections lie hidden in the telescopic tubes but become visible as they are extended out from the outer surrounding and immobile tube sections.
  • the invention also relates to a method, using at least one but preferably more examples of the device according to the invention, fitted in each individual telescopic tube and individually or in concert forming a group of height-adjustable legs in a table construction, for example, of synchronising all individual and visible tube sections ofthe telescopic tubes with one another, so that within the group they at all times move uniformly and in symmetrical agreement with one another during both raising and lowering movements.
  • Enclosed or visible telescopic tubes are increasingly being used as continuously height- adjustable legs for terminal desks and work tables, beds, operating tables and patient lifting appliances in hospitals and nursing homes etc., their level usually being adjusted by built-in, manual or power-driven adjusting gear.
  • the main function ofthe telescopic tubes serving as legs in such constructions is to protect and provide lateral stabilisation for all built-in, continuously adjustable adjusting gear, and when required to be capable of considerable extension to a leg length sometimes more than twice their original length without neglecting the lateral stability of the legs.
  • the telescopic tubes ofthe legs are enclosed and hidden. This may be in order to create an individual leg design, but just as often it is done in order to hide the fact that the moveable tube sections in two or more visible legs do not always follow one another uniformly and synchronously during the raising and lowering movement, even if the level is adjusted equally on all the legs.
  • the inner moveable tube sections follow the law of least frictional resistance and this almost always means that one or more sections will get out of step with the others.
  • Constructions having only two legs are furthermore provided with a foot construction aligned forwards and backwards transversely to the longitudinal direction ofthe table and projecting out from each leg along the floor, thereby eliminating the risk ofthe table tipping over.
  • a foot construction aligned forwards and backwards transversely to the longitudinal direction ofthe table and projecting out from each leg along the floor, thereby eliminating the risk ofthe table tipping over.
  • circular tube sections In order to guide and lock the foot construction transversely, even if the table is moved on the floor, circular tube sections must be provided with rotational stops or made oval and in themselves not rotatable.
  • the device according to the invention as described below it is possible to mechanically or automatically synchronise the sequence of movements of all visible tube sections forming part of a group of telescopic tubes designed to interact as height-adjustable legs in a table construction, thereby eliminating the need for more expensive enclosure.
  • the device according to the invention also makes it possible to use circular tube sections without the risk of unwanted rotation ofthe foot construction when moving along the floor.
  • the device according to the invention in telescopic tubes proceeds from the prior are set forth in the pre-characterising clause of claim 1, and is essentially characterised in that the tube wall of at least one ofthe inner, moveable tube sections in a telescopic tube is provided with at least one hole and that a fastener is pressed into each such hole, the fastener having a cavity designed for the fixing and low-friction guidance of a freely rolling guide roller.
  • each guide roller has two or more circular, sharp-edged elevations, symmetrically distributed from the outer ends and all having an outside diameter somewhat larger than the distance between the inner wall ofthe next outer tube section and the outer wall ofthe next inner tube section.
  • the device according to the invention is further characterised in that the material in the guide rollers is always harder than the material in the tube sections.
  • the method according to the invention for synchronising the sequence of movements of all visible tube sections of multiple interacting telescopic tubes is essentially characterised in that guide rollers ofthe device according to the invention in each individual telescopic tube have so large a diameter over their hard, sharp-edged and circular elevations that when the tube sections are pushed into one another forming a complete telescopic tube the guide rollers cut into and form durable grooves in the nearest adjacent tube walls and create a significantly greater frictional contact between the guide rollers and the tube walls than the friction created by the spacing and lateral stability bearings against the tube sections, and that with the least upward or downward movement ofthe adjusting gear all guide rollers begin to rotate in their respective fasteners and to roll in the grooves on the tube walls ofthe surrounding sections, and by way ofthe fasteners press and entrain the moveable tube section in the same direction and at half the rate ofthe adjusting gear.
  • the method according to the invention is further characterised in that all moveable tube sections provided with guide rollers ofthe same diameter on the elevations also always have an identical sequence of movements in relation to surrounding tube sections when they follow the adjusting gear in a raising or lowering movement, and that all visible tube sections that form legs in two or more interacting telescopic tubes thereby also move synchronously in relation to one another.
  • Figs, la and lb symbolically show the leg of a conventional height-adjustable table construction, the legs of which consist of entirely visible two-stage telescopic tubes (1), each concealing an internal power-driven (5) adjusting gear.
  • the telescopic tube (1) stands on a foot construction (6) projecting forwards and backwards along the floor transversely to the longitudinal direction ofthe table top (4), in order to give the table the necessary stability.
  • Fig. la the telescopic tube is fully nested
  • Fig. lb shows the telescopic tube fully extended so that the two inner tube sections (2, 3) are also visible.
  • the inner tube section (3) is fixed both to the motor (5) and to the table top (4) and therefore always follows the movement ofthe adjusting gear up and down at the same rate. All the tube sections are kept separated from one another by precision-made slide bearings, which constitute spacers and create the required lateral stability. The slide bearings, however, are not shown here.
  • Fig. 2 therefore symbolically shows how non-enclosed and hence entirely visible tube sections can get out of step (7) with one another when two or more telescopic tubes must interact in a height-adjustable table construction. Such a simple reason alone has hitherto meant that the telescopic tubes have had to be enclosed and hidden.
  • Fig. 2 also shows how circular tube sections in telescopic tubes without rotational stops can twist so that, if the table is dragged along the floor, the foot construction (6) shifts into the wrong position and can cause the table to become unstable and even topple over.
  • Fig. 3 therefore shows a cross-section through the guide roller (8) and fastener (9) ofthe device according to the invention double-fitted, each in its recess on either of two diametrically opposite sides in the moveable tube section (2) of a square, two-stage telescopic tube (1).
  • the square space in the inner tube section (3) is designed to accommodate a two-stage, power-driven adjusting gear.
  • Fig. -3b in a section at right-angles to the tube-wall of the moveable tube section (2)-shows how the guide rollers (8) are each pressed into and fastened so that they are free to roll in their respective fasteners (9), which are in turn pressed into the matching recesses in the moveable tube section (2).
  • Fig. 3c in a partially enlarged cross-section further shows how the two sharp-edged elevations (10) ofthe guide roller (8), the diameter ofthe elevations being greater than the distance between the nearest adjacent tube walls, cut grooves into the inner wall ofthe telescopic tube (1) and the outer wall ofthe inner tube section (3).
  • Figs. 4a, 4b and 4c show, in a comparable way, an example ofthe guide roller (8) and fastener (9) ofthe device according to the invention double-fitted, each in its respective recess on either ofthe two diametrically opposite sides in the moveable tube section (2) in a circular, two-stage telescopic tube (1).
  • Fig. 4c in a partially enlarged cross-section, likewise shows how the guide roller (8), here provided with three sharp-edged elevations (10), the diameter of which is greater than the distance between the nearest adjoining tube walls, cuts two grooves into the inner wall of the telescopic tube (1) and owing to the circular design ofthe tube sections cuts only one groove in the outer wall ofthe inner tube section (3).
  • Fig. 5 symbolically shows a cross-section through one half of a compressed two-stage telescopic tube (1) containing the guide roller (8) according to the invention, fitted in its fastener (9) and pressed into the recess in the moveable tube section (2) intended for this purpose.
  • the inner tube section (3) is securely connected to the motor (5) ofthe adjusting gear (11) located along the centre-line, and the table top (4) is furthermore securely connected to the motor (5).
  • the outer visible tube section ofthe telescopic tube (1) here shown without the foot construction (6) previously described , remains immobile on the floor at all times, and since the inner tube section (3) always follows the motor and the table top as soon as the adjusting gear commences its raising movement, there is in this example only one moving tube section (2), which without the aid ofthe device according to the invention would move uncontrollably and independently ofthe other tube sections. From a further consideration ofthe device according to the invention in this figure, it will be appreciated that it is the friction ofthe slide bearings against the tube walls which determines when and at what rate the moveable tube section (2) is uncontrollably entrained in the sequence of movements ofthe adjusting gear.
  • Fig. 6 therefore finally shows a symbolic cross-section through one of two or more interacting two-stage telescopic tubes (1) in a power-driven height-adjustable table construction, in which the hard, sharp-edged elevations on the guide rollers (8) ofthe device according to the invention are given a diameter which is so large that even in the telescopic tube assembly stage these elevations inevitably cut into and make durable grooves in the softer wall material ofthe nearest adjacent tube sections.
  • the sharp-edged elevations which previously cut grooves into the tube walls, also form effective rotational stops, so that even circular telescopic rubes can be used without a risk of any foot constructions being twisted out of their positions if the table is moved along the floor.

Landscapes

  • Accommodation For Nursing Or Treatment Tables (AREA)
  • Actuator (AREA)

Abstract

L'invention concerne un dispositif permettant le télescopage contrôlé de tubes télescopiques multi-étagés dans des constructions réglables en hauteur par engrenage de réglage ainsi qu'un procédé d'utilisation dudit dispositif afin de synchroniser la séquence de mouvements de toutes les sections tubulaires mobiles et visibles (2) de plusieurs tubes télescopiques en interaction à l'air libre (1). La présente invention se caractérise essentiellement en ce que les sections tubulaires, qui sont libres de se déplacer dans un tube télescopique multi-étagé et dont la séquence de mouvements est normalement influencée de façon incontrôlable par la résistance de frottement des paliers à glissement, sont pourvues d'au moins un galet de guidage transmetteur de mouvement (8) présentant au moins deux élévations durcies circulaires à arêtes vives (10) d'un diamètre supérieur à la distance entre les parois des sections tubulaires les plus immédiatement adjacentes au galet. De plus, lesdits galets de guidage sont conçus, une fois assemblés dans un tube télescopique multi-étagé complet, pour former des rainures dans les parois des tubes avec lesquelles ces galets viennent en contact. Lesdits galets permettent ainsi un guidage contrôlé des sections tubulaires visibles, de sorte qu'à chaque fois que ces sections effectuent une séquence de mouvements à récurrence constante, ce qui permet dans un même temps l'utilisation de plusieurs tubes télescopiques identiques en interaction dans une plus grande construction, toutes les sections tubulaires mobiles et visibles de ces tubes effectuent une séquence de mouvement entièrement synchronisée si tous les tubes télescopiques à engrenage de réglage de ladite construction s'étendent à partir d'un niveau commun.
PCT/SE2003/001717 2002-11-08 2003-11-06 Ensemble permettant la synchronisation de tubes telescopiques, utilisation dudit ensemble et procede d'utilisation de ce dernier Ceased WO2004041027A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003283895A AU2003283895A1 (en) 2002-11-08 2003-11-06 Arrangement for he syncronisation of telescoping tubes, its use and a method of using said arrangement

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0203289A SE524071C2 (sv) 2002-11-08 2002-11-08 Anordning för kontrollerad teleskopering av flerstegs teleskoprör samt sätt att medelst en dylik anordning synkronisera samverkande teleskoprörsektioner med avseende på deras rörelseförlopp
SE0203289-4 2002-11-08

Publications (1)

Publication Number Publication Date
WO2004041027A1 true WO2004041027A1 (fr) 2004-05-21

Family

ID=20289493

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2003/001717 Ceased WO2004041027A1 (fr) 2002-11-08 2003-11-06 Ensemble permettant la synchronisation de tubes telescopiques, utilisation dudit ensemble et procede d'utilisation de ce dernier

Country Status (3)

Country Link
AU (1) AU2003283895A1 (fr)
SE (1) SE524071C2 (fr)
WO (1) WO2004041027A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006050735A1 (fr) * 2004-11-12 2006-05-18 Linak A/S Colonne de levage
EP1922953A3 (fr) * 2006-11-14 2008-06-25 Unifor S.p.A. Support de table téléscopique
EP2301382A1 (fr) 2009-09-25 2011-03-30 Siemens AB Colonne télescopique pour le réglage de la hauteur
EP2392226A1 (fr) 2010-06-07 2011-12-07 KIH-utveckling AB Agencement pour meuble verticalement réglable
WO2014158017A1 (fr) * 2013-03-26 2014-10-02 Van Remundt Beheer B.V. Système de stockage avec étagères de support mobiles le long d'un rail avec station à hauteur réglable et commande
CN106015224A (zh) * 2015-03-24 2016-10-12 斯凯孚公司 升举柱

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29705117U1 (de) * 1997-03-20 1998-07-23 Oelschläger Metalltechnik GmbH, 27318 Hoya Teleskopführung
DE20104662U1 (de) * 2001-04-26 2001-09-20 Spitzner, Lothar, Dipl.-Ing., 04229 Leipzig Verdrehsichere teleskopierbare Profilkombination

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29705117U1 (de) * 1997-03-20 1998-07-23 Oelschläger Metalltechnik GmbH, 27318 Hoya Teleskopführung
DE20104662U1 (de) * 2001-04-26 2001-09-20 Spitzner, Lothar, Dipl.-Ing., 04229 Leipzig Verdrehsichere teleskopierbare Profilkombination

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006050735A1 (fr) * 2004-11-12 2006-05-18 Linak A/S Colonne de levage
EP1922953A3 (fr) * 2006-11-14 2008-06-25 Unifor S.p.A. Support de table téléscopique
US8011308B2 (en) 2006-11-14 2011-09-06 Unifor S.P.A. Telescopic table support
EP2301382A1 (fr) 2009-09-25 2011-03-30 Siemens AB Colonne télescopique pour le réglage de la hauteur
EP2392226A1 (fr) 2010-06-07 2011-12-07 KIH-utveckling AB Agencement pour meuble verticalement réglable
WO2014158017A1 (fr) * 2013-03-26 2014-10-02 Van Remundt Beheer B.V. Système de stockage avec étagères de support mobiles le long d'un rail avec station à hauteur réglable et commande
CN106015224A (zh) * 2015-03-24 2016-10-12 斯凯孚公司 升举柱

Also Published As

Publication number Publication date
SE0203289D0 (sv) 2002-11-08
AU2003283895A1 (en) 2004-06-07
SE524071C2 (sv) 2004-06-22
SE0203289L (sv) 2004-05-09

Similar Documents

Publication Publication Date Title
JP6552807B2 (ja) 上下調節可能な脚を有する家具
US10390611B2 (en) Privacy screen table connection mechanism
EP2823731B1 (fr) Table réglable verticalement
CN117442007A (zh) 家具元件
US20060032830A1 (en) Shelving system
WO2004041027A1 (fr) Ensemble permettant la synchronisation de tubes telescopiques, utilisation dudit ensemble et procede d'utilisation de ce dernier
WO2002043526A3 (fr) Pieds non alignes a hauteur reglable pour tables et chaises s'inclinant et coulissant
EP3082505A1 (fr) Pied télescopique pour une table
EP2946689B1 (fr) Bureau à plateau réglable verticalement
US10980338B1 (en) Table with multiple horizontally and vertically adjustable table top sections
US10973336B2 (en) Adjustable support legs for a mattress foundation
US20150323244A1 (en) Adjustable Shelving System
EP0517386A1 (fr) Couverture du bas d'un panneau support
WO2015180724A1 (fr) Cadre de support réglable en hauteur
CN114650750B (zh) 用于家具的伸缩支腿
US10973716B2 (en) Adjustable support legs for a mattress foundation
US10051970B1 (en) Adjustable support legs for a mattress foundation
JP4410727B2 (ja) 高さ調節装置
JP5994202B2 (ja) システムキッチン装置
EP0848922A2 (fr) Rail de guidage pour table à rallonge
DE3731869A1 (de) Anordnung fuer einrichtungen mit schraenken
JPH11216032A (ja) 居室空間の間仕切りユニット
JP2005334433A (ja) ベッド装置
KR101611666B1 (ko) 다양한 각도 조절이 가능한 화장대
WO2002063996A1 (fr) Palier lisse pour tubes telescopiques et procede permettant d'eviter les marques de coulissement visibles

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AL AM AT AU AZ BA BB BG BR BW BY CA CH CN CU CZ DE DK EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MD MG MK MN MW MX MZ NO NZ PL PT RO RU SD SE SG SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
NENP Non-entry into the national phase

Ref country code: JP

WWW Wipo information: withdrawn in national office

Country of ref document: JP