WO2002063996A1 - Palier lisse pour tubes telescopiques et procede permettant d'eviter les marques de coulissement visibles - Google Patents

Palier lisse pour tubes telescopiques et procede permettant d'eviter les marques de coulissement visibles Download PDF

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Publication number
WO2002063996A1
WO2002063996A1 PCT/SE2002/000224 SE0200224W WO02063996A1 WO 2002063996 A1 WO2002063996 A1 WO 2002063996A1 SE 0200224 W SE0200224 W SE 0200224W WO 02063996 A1 WO02063996 A1 WO 02063996A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
slide
elements
shde
slidebearing
Prior art date
Application number
PCT/SE2002/000224
Other languages
English (en)
Inventor
Håkan SKEPÖ
Original Assignee
Rol Ergonomic Ab (Jaco-Verken)
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 (Jaco-Verken) filed Critical Rol Ergonomic Ab (Jaco-Verken)
Priority to EP02711594A priority Critical patent/EP1359825A1/fr
Publication of WO2002063996A1 publication Critical patent/WO2002063996A1/fr

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 comprises a slidebearing in telescopic pipes, aimed to stabilize variable under-frame s and stands in constructions like raisable and lowerable terminal tables, operating-tables, workbenches, patient Ufts and beds etc, variable with the aid of manual or motor driven mechanical actuators.
  • the invention comprises especially a slidebearing in such telescopic pipes, where two or more, inside each other, free moving circular pipe sections are kept apart by a side stabilizing slidebearing consisting of two or more open and band formed slide elememts.
  • the invention also comprises how to use the inventive slidebearing in the telescopic pipe in order to avoid visible slide marks upon the lacquered and finished outer surfaces of the pipe sections, even if they are extended to give maximal length to the telescopic pipe.
  • Telescopic pipes are being used more and more into variable, and thereby ergonomically adaptable constructions like raisable and lowerable terminal tables at offices, beds, operating-tables and patient lifts at hosptals, workbenches and positioning arrangements within the industry etc, to be varied normally by built-in manual or motor driven mechanical actuators.
  • the essential task for such a telescopic pipe is to secure for the side stabihty of the construction, even when the pipe sections are extended all the way to their end stops. Further tasks for the telescopic pipe are to hide the necces- sary mechanical positioning actuator and with a good looking design and finish offer an attractive product.
  • the side stability is totally depending upon the manufacturing accuracy of the individal pipe sections, the number, the cross section area and the dimensioning, together with the choice of the slidebearing elements and where they are fixed between the telescopic pipe sections. Just a minor tolerance failure between the pipe sections and the slidebearing elements gives a big instability to the telescopic pipe when extended to it's full length.
  • the following described inventive slidebearing consists of two or more open, injection moulded band formed slide elements made of low friction plastic, constantly dimensioned to fit between the d fferent pipe sections, which all have a circular cross section area, and that the slide elements are fixed into shallow, machine cut or precision-turned cavities on the pipe section's outer wall surface, and with minimal tolerance touch and slide against the inner wall surface of the nearest outer pipe section, which surface thereby only needs to be simply cleaned and/or polished.
  • the inventive slidebearing in a telescopic pipe issues from what is specified within the ingress of the attached claim 1, and is mainly characterized by, the slide elements which are formed like wide, at one spot slit opened "piston- ring"-like plastic bands.
  • each slide element at least at three, preferably more spots along the band has thicker segments to fill out the space between two near pipe sections in the telescopic pipe and thereby, in cooperation with at least one more slide element essentially distanced from the other, brings the neccessary side stabihty to the construction.
  • the slide elements may furthermore be fixed to these positions by e.g. small pins into corresponding holes in the pipe section's outer wall surface or just resilently be fixed in the precision-turned shallow cavities.
  • the invention will at first be described by it's general divergence from known technique and thereafter more in detail as a non-re strictable example of a slidebearing in a two-steps telescopic pipe with two movable pipe sections.
  • Figure 1 shows, symbolically and much simplified, an exaple of a telescopic pipe, where the slidebearing comprises two slide elements (1) being placed near the open ends of the pipe sections (2) to ease for the machine -finishing.
  • the slide elements will give maximum side stability only when the telescopic pipe is totally compressed.
  • All slide elements (1) in all figures are symbolized by a trapezoid with the wide side symbolizing it's fixation surface and the narrow side symbolizing the sliding surface of the element, for easier illustration onto which wall of the pipe section the element is assembled and against what wall it is sliding.
  • the side stability has been trimmed by adjusting the thickness of the shde element.
  • a mechanical stop (3) is assembled to or mechanically bent into the pipe section's wall.
  • Figure 2 shows identically same telescopic pipe including a two steps actuator (4).
  • FIGS. 3a and 3b show symbolically the differences in how the slidebea- rings and stops normally are placed, compared to how they shall be placed following this new inventive way.
  • figure 3a therefor shows exactly the same performance that already was described for the telescopic pipe in figure 1.
  • Figure 3b shows in a similar symbolic way, how the slide ele- mentes (1), now are assembled onto the pipe section's (2) outer wall surface and thus always slide against the inner wall surface of the nearest outer pipe section.
  • Figure 3b also shows that the slide elements (1) are being placed within a distance from approximately half-way up or preferably slightly less than half-way up and down to the bottom end a the movable pipe section.
  • the invention hereby makes it possibility to assemble and fix injection moulded constantly dimensioned shde elements that fit the outer diameter of the pipe sections and, if neccessary for improved tolerance, also turn shallow cavities with high precision into the outer wall surface of the pipe section, where the shde elements (1) resilently can be assembled and stay fixed, thus forming the inventive slidebearing.
  • the side stabihty which hereby may be optimized by precision-turned shallow cavities for the shde elements, and is most critical when all pipe section's are pulled apart to the full length of the telescopic pipe, an improved side stabihty is obtained over the total working range of the telescopic pipe, and simultaneousely a more industrial oriented manufturing method.
  • Figure 3b also shows how the telescoping stops (3) are placed inside and near to the pipe section's upper end, and designed not to reach the nearest inner section's outer wall surface.
  • the upper slide elements (1) on the moving pipe sections stop their motion upwards when they reach a stop (3).
  • the inventive method how to avoid visible shde marks at the lacuered pipe section's outer wall surfaces becomes possible by the assembling of the shde elements (1), that always are being fixed against the pipe section's (2) outer wall surface or assembled into shallow cavities precision-turned on that surface and that they always shde against the nearest outer pipe section's (2) inner wall surface.
  • Figure 4a shows, as a perspective view, an example of the special slide element (1) of the inventive slidebearing, that is formed like a circular "piston- ring"-like band, preferably injection moulded out of an abraison resistent thermoplastic material with high density and low coefficient of friction, which band is designed with an open slit (5) and at least three or more extended segments (6), which by highest tolerance fill the total space between two pipe sections (2) when entered one into the other, alternatively fill this space including the depth of the shallow cavity, precision-turned to fix the shde element (1) into the inner pipe section's (2) outer wall surface.
  • the special slide element (1) of the inventive slidebearing that is formed like a circular "piston- ring"-like band, preferably injection moulded out of an abraison resistent thermoplastic material with high density and low coefficient of friction, which band is designed with an open slit (5) and at least three or more extended segments (6), which by highest tolerance fill the total space between two pipe sections (2) when entered one into the other, alternatively
  • Figure 4b shows as a cross section view exactly such a shde element (1), assembled into such a precision-turned cavity in a pipe section's (2) outer wall.
  • FIG. 5 finally, shows again symbolically, much enlarged and as a part perspective view, how the shde elements (1) are fixed into precision-turned cavities in the outer wall surface's of an inner pipe section (2), and how they shde slide against nearest outer pipe section's (2) inner wall surface, thus newer being able to scratch or make slide marks to the visible outer lacuered and finished surfaces of the pipe sections even if the telescopic pipe is extended to it's full length.
  • the telescoping stops (3) fixed into their machine turned slots (7), must also give free space to these wall surfaces.
  • An end stopp (8) is usually bent inwards into the bottom part of all outer pipe sections after the assembling, to prevent the sections to fall apart downwards when handeled.

Landscapes

  • Mutual Connection Of Rods And Tubes (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Flexible Shafts (AREA)

Abstract

La présente invention concerne un palier lisse pour tube télescopique circulaire comprenant un vérin à commande manuelle ou à moteur (4) et un procédé permettant d'éviter les rayures et marques de coulissement visibles sur les surfaces extérieures laquées et finies de toutes les sections de tube mobiles d'un tube télescopique, lequel procédé est principalement caractérisé par le fait que chaque palier lisse comprend au moins deux éléments coulissants (1) comportant chacun une fente (5) et au moins trois segments en saillie (6), lesquels éléments coulissants sont séparés et assemblés dans des cavités le long des surfaces extérieures des parois de toutes les sections de tube mobiles du tube télescopique, et en ce que ces éléments coulissants (1), qui limitent également la longueur de télescopage totale en coopérant avec des butées (3,8) à jeu libre orientées vers l'intérieur, coulissent toujours contre la surface intérieure invisible des parois de la section de tube extérieure la plus proche (2) du tube télescopique.
PCT/SE2002/000224 2001-02-12 2002-02-11 Palier lisse pour tubes telescopiques et procede permettant d'eviter les marques de coulissement visibles WO2002063996A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP02711594A EP1359825A1 (fr) 2001-02-12 2002-02-11 Palier lisse pour tubes telescopiques et procede permettant d'eviter les marques de coulissement visibles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0100423-3 2001-02-12
SE0100423A SE0100423L (sv) 2001-02-12 2001-02-12 Glidlagring i teleskoprör och sätt att därmedelst undvika synliga repskador och glidmärken

Publications (1)

Publication Number Publication Date
WO2002063996A1 true WO2002063996A1 (fr) 2002-08-22

Family

ID=20282916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2002/000224 WO2002063996A1 (fr) 2001-02-12 2002-02-11 Palier lisse pour tubes telescopiques et procede permettant d'eviter les marques de coulissement visibles

Country Status (3)

Country Link
EP (1) EP1359825A1 (fr)
SE (1) SE0100423L (fr)
WO (1) WO2002063996A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012013190A2 (fr) 2010-07-29 2012-02-02 Linak A/S Colonne élévatrice de préférence pour tables à hauteur réglable
EP2424403A1 (fr) * 2009-04-28 2012-03-07 G.J.M.S. Holdings Limited Améliorations pouvant être apportées à du mobilier à hauteur réglable
CN106015224A (zh) * 2015-03-24 2016-10-12 斯凯孚公司 升举柱
CN108712870A (zh) * 2016-02-29 2018-10-26 奥诗莱格金属技术有限责任公司 伸缩式工作台支架组件、用于制造滑动引导装置的方法以及用于执行该方法的装置
WO2019210917A1 (fr) 2018-05-02 2019-11-07 Linak A/S Élément coulissant pour colonnes de levage
US10531732B1 (en) * 2018-10-26 2020-01-14 Chia-Yen Huang Table with collapsible legs

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1374258A (fr) * 1963-05-31 1964-10-02 Emue Tische Emil Muessig Spezi Procédé d'obtention d'un guidage sans jeu pour tables à hauteur réglable
DE8634267U1 (fr) * 1986-12-22 1987-02-12 Herbert Gruettner Gmbh & Co Kg, 4924 Barntrup, De
EP0913108A1 (fr) * 1997-10-30 1999-05-06 Assenburg B.V. Procedé d'assemblage d'un pied de meuble ou similaire
EP1013195A2 (fr) * 1998-12-18 2000-06-28 Koyo Giken Co., Ltd. Organe téléscopique, corps cylindrique et corps moulé

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1374258A (fr) * 1963-05-31 1964-10-02 Emue Tische Emil Muessig Spezi Procédé d'obtention d'un guidage sans jeu pour tables à hauteur réglable
DE8634267U1 (fr) * 1986-12-22 1987-02-12 Herbert Gruettner Gmbh & Co Kg, 4924 Barntrup, De
EP0913108A1 (fr) * 1997-10-30 1999-05-06 Assenburg B.V. Procedé d'assemblage d'un pied de meuble ou similaire
EP1013195A2 (fr) * 1998-12-18 2000-06-28 Koyo Giken Co., Ltd. Organe téléscopique, corps cylindrique et corps moulé

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2424403A1 (fr) * 2009-04-28 2012-03-07 G.J.M.S. Holdings Limited Améliorations pouvant être apportées à du mobilier à hauteur réglable
EP2424403B1 (fr) * 2009-04-28 2016-09-07 G.J.M.S. Holdings Limited Pied à hauteur réglable pour mobilier
WO2012013190A2 (fr) 2010-07-29 2012-02-02 Linak A/S Colonne élévatrice de préférence pour tables à hauteur réglable
WO2012013190A3 (fr) * 2010-07-29 2012-03-15 Linak A/S Colonne élévatrice de préférence pour tables à hauteur réglable
RU2566484C2 (ru) * 2010-07-29 2015-10-27 Линак А/С Подъемная колонна предпочтительно для регулируемых по высоте столов
US9247806B2 (en) 2010-07-29 2016-02-02 Linak A/S Lifting column preferably for height-adjustable tables
CN106015224A (zh) * 2015-03-24 2016-10-12 斯凯孚公司 升举柱
CN108712870A (zh) * 2016-02-29 2018-10-26 奥诗莱格金属技术有限责任公司 伸缩式工作台支架组件、用于制造滑动引导装置的方法以及用于执行该方法的装置
CN108712870B (zh) * 2016-02-29 2022-01-25 奥诗莱格金属技术有限责任公司 伸缩式工作台支架组件、用于制造滑动引导装置的方法以及用于执行该方法的装置
WO2019210917A1 (fr) 2018-05-02 2019-11-07 Linak A/S Élément coulissant pour colonnes de levage
US11412843B2 (en) 2018-05-02 2022-08-16 Linak A/S Slider element for lifting columns
US10531732B1 (en) * 2018-10-26 2020-01-14 Chia-Yen Huang Table with collapsible legs

Also Published As

Publication number Publication date
EP1359825A1 (fr) 2003-11-12
SE0100423D0 (sv) 2001-02-12
SE0100423L (sv) 2002-08-13

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