EP1262123B1 - Objektträgersäule - Google Patents

Objektträgersäule Download PDF

Info

Publication number
EP1262123B1
EP1262123B1 EP02012218A EP02012218A EP1262123B1 EP 1262123 B1 EP1262123 B1 EP 1262123B1 EP 02012218 A EP02012218 A EP 02012218A EP 02012218 A EP02012218 A EP 02012218A EP 1262123 B1 EP1262123 B1 EP 1262123B1
Authority
EP
European Patent Office
Prior art keywords
support column
guide
column according
end unit
tube
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.)
Expired - Fee Related
Application number
EP02012218A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1262123A3 (de
EP1262123A2 (de
Inventor
Peter Thurmann
Stephan Enders
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.)
Stabilus GmbH
Original Assignee
Stabilus 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 Stabilus GmbH filed Critical Stabilus GmbH
Publication of EP1262123A2 publication Critical patent/EP1262123A2/de
Publication of EP1262123A3 publication Critical patent/EP1262123A3/de
Application granted granted Critical
Publication of EP1262123B1 publication Critical patent/EP1262123B1/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder
    • 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
    • A47B91/12—Leg supports, e.g. cup-shaped, also under castors

Definitions

  • the invention relates to a slide column according to the preamble of claim 1.
  • Slide columns of this type are z. B. used in height-adjustable chairs or tables.
  • a pressure tube at one end with a diameter reduction performs.
  • This diameter reduction can be conically shaped, for example.
  • For a versatile use of the cone is standardized in its dimensions.
  • an exchangeability of the slide column is achieved independently of a particular manufacturer.
  • a guide tube is arranged, in which in turn a displacer, usually a piston rod is guided axially movable with a piston.
  • a valve body is installed as an end unit in which a switchable valve is arranged to provide a flow communication between the valve body Guide tube and an extending between the pressure tube and the guide tube annulus influenced as fluid communication.
  • the valve housing has a guide pin which is inserted into the guide tube. With its outer contour, the valve housing is supported on the inner wall of the pressure tube and thus centered the guide tube to the pressure tube.
  • the stroke length of the slide column is dependent on the usable length of the guide tube minus the length of the piston. If one must adhere to a predetermined distance between the diameter reduction and the other end of the pressure tube, then it is of no use if one shortens the valve housing between the end of the guide tube and the inner wall of the pressure tube to meter the saved length of the guide tube. If you would extend the guide tube, it is in the inside of the diameter reduction on the pressure tube and the above-described annulus would no longer exist.
  • the object of the present invention is to optimize a slide column with regard to its stroke length.
  • the object is achieved in that the guide tube has, at the end facing the end unit, a transition length section which ends in a smaller diameter than the nominal diameter.
  • the end unit can be moved axially in the direction of the end of the pressure tube. This shift can be utilized as gain in terms of the usable power of the guide tube. Regardless of a diameter reduction of the pressure tube to obtain a very slim assembly of end unit and guide tube, the end unit does not necessarily have to be used for a valve, but can also be designed as a piston rod guide or as a simple plug.
  • High-strength materials in particular, can only be reshaped under tension and cracking to a limited extent. Therefore, it has been found to be particularly advantageous if the transitional length section is conical.
  • the transitional length section is bottle-necked.
  • the transitional length section has a bottom.
  • the end unit can be supported axially on the guide tube.
  • the transition length section is adjoined by a guide section. This can alternatively also radially supported on the inner wall of the pressure tube. Thus the end unit does not have to take over a centering function.
  • the guide portion is formed by an at least partially executed collar.
  • a completely circumferential collar is not necessary, since, in particular when the end unit is used as a valve housing, at least one gap between the guide tube and the pressure tube must remain as a fluid connection.
  • the guide tube can be centered by means of a spacer ring to the pressure tube.
  • a spacer ring you can save yourself a guide section and simplify the geometry of the end unit.
  • the guide portion may have a bead for a seal.
  • the bottle neck transitional section may have at least one sealing surface for a seal to the end unit.
  • the end unit has a seal to the pressure tube within a groove, wherein the end unit is designed in two parts and a dividing joint extends in the region of the groove.
  • a particularly simple injection mold for the end unit results.
  • the guide tube may have, starting from its nominal diameter, a guide section which is radially supported on the inner wall of the pressure tube.
  • the guide portion may be formed by an at least partially executed collar.
  • Fig. 1 shows the parts according to the invention of a slide column 1, as they are used for tables, chairs or other applications.
  • a guide tube 5 is arranged within a pressure tube 3.
  • the pressure tube has a diameter reduction 7, which is determined by a cone 9, wherein the diameter reduction, which can also be carried out only partially, for. B. in the design of a dent, can also be formed by a different design of the pressure tube.
  • an end unit 11 is arranged, which often performs the function of a valve housing, but not in principle. It is also conceivable embodiment as a piston rod guide or as a simple closed end plug.
  • a transitional length section 15 connects, which is also conically shaped in this embodiment.
  • the end of the guide tube is formed by a guide portion 17 which is in register with a guide pin 19 of the end unit.
  • the guide portion has a constant diameter so that the end unit 11 can be mounted over the open end of the guide tube.
  • the guide pin includes a seal 21, which is the interior of the guide tube separates from a fluid connection 23, wherein the fluid connection is formed by an annular space between the inner wall of the pressure tube and the outer wall of the guide tube.
  • the end unit By forming a transitional length section on the guide tube, the end unit is displaced practically further axially into the cone of the pressure tube. You can dimension the usable length of the guide tube until just before the beginning of the diameter reduction of the pressure tube and then axially form the transitional length section. For comparison, the known from the prior art positioning of the end unit is shown in dashed lines.
  • the usable stroke length increase 25 amounts to approximately 30 mm for a sample part produced by the applicant with otherwise unchanged wall thicknesses, diameters and lengths.
  • Fig. 2 includes two embodiments.
  • the guide portion 17 has a bead 27 for the seal 21.
  • the final diameter of the guide tube was compared to the variant of Figure 1 is slightly reduced. to create the necessary radial space.
  • the end unit 11 in the region of a groove 29 for a seal 31 between the end unit and the inner wall of the pressure tube in a first and a second portion 11 a; 11 b shared.
  • these two sections of the end unit can be produced particularly simply by injection molding without radial undercuts.
  • an axially extending centering portion 11 c Between the two sections 11a; 11 b of the end unit is an axially extending centering portion 11 c, so that also continues the guide tube 5 is aligned via the end unit 11 to the pressure tube.
  • the seal 21 is supported, so that even in this variant no circumferential groove must be incorporated into the end unit.
  • a spacer ring 35 instead of the guide portion 17 and of the transitional length portion only uses a bottom 37 on which the end unit can be supported.
  • the advantage of this measure is that you can achieve a direct centering of the guide tube to the pressure tube and at the same time can account for the Umformaufwand the guide tube for the guide section.
  • the spacer ring is slotted or designed only on a circumference of slightly more than 180 ° so as not to block the fluid connection 23.
  • FIG. 3 comprises two variants of the slide column.
  • the transitional length section 15 is followed by a collar-shaped guide section 17 which is directed radially outwards and which is supported radially on the inner wall of the pressure tube 3. So that the fluid connection 23 is ensured even in the region of the guide section, the collar is only limited to an angular range in the circumferential direction or there are recesses 39 in the edge region.
  • the guide section 17 of the guide tube 5 connects directly to the nominal diameter 13.
  • the increase in length of the usable guide tube may be slightly lower compared to the solutions described above, but the forming effort is significantly lower.
  • Both solutions according to FIG. 3 have in common that the guide tube is centered on the guide section 17 directly on the pressure tube.

Landscapes

  • Actuator (AREA)
  • Pressure Vessels And Lids Thereof (AREA)
  • Chairs Characterized By Structure (AREA)
  • Curtains And Furnishings For Windows Or Doors (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
EP02012218A 2001-06-01 2002-05-29 Objektträgersäule Expired - Fee Related EP1262123B1 (de)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10126681 2001-06-01
DE10126681 2001-06-01
DE10219583A DE10219583A1 (de) 2001-06-01 2002-05-02 Objektträgersäule
DE10219583 2002-05-02

Publications (3)

Publication Number Publication Date
EP1262123A2 EP1262123A2 (de) 2002-12-04
EP1262123A3 EP1262123A3 (de) 2004-01-28
EP1262123B1 true EP1262123B1 (de) 2006-03-29

Family

ID=26009451

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02012218A Expired - Fee Related EP1262123B1 (de) 2001-06-01 2002-05-29 Objektträgersäule

Country Status (6)

Country Link
US (1) US7188819B2 (ko)
EP (1) EP1262123B1 (ko)
KR (1) KR100882929B1 (ko)
DE (2) DE10219583A1 (ko)
ES (1) ES2261552T3 (ko)
TW (1) TWI230591B (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8058899B2 (en) 2000-10-06 2011-11-15 Martin Vorbach Logic cell array and bus system
EP1576528A4 (en) * 2002-10-09 2011-05-18 California Inst Of Techn SENSOR FABRIC

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE562064C (de) 1931-08-25 1932-10-21 Peder Jensen Andersen Ausziehrohr, insbesondere fuer Stativfuesse
DE657319C (de) 1937-01-17 1938-03-02 Friedrich Gaab Fahrbare Stativsaeule
DE7623283U1 (de) * 1976-07-23 1977-01-13 Stabilus Gmbh, 5400 Koblenz Fuehrungssaeule zur stufenlosen hoeheneinstellung von stuhlsitzen
US4465266A (en) * 1982-03-08 1984-08-14 Hale Chairco Corporation Power unit for medical and like stools and chairs
DE3627138A1 (de) * 1986-08-09 1988-02-11 Stabilus Gmbh Fuehrung teleskopartig ineinander verschiebbare zylindrische teile
US4720068A (en) * 1986-08-29 1988-01-19 Tornero Lino E Seat support column
GB2197422B (en) * 1986-11-08 1991-06-26 Evertaut Limited Height adjustment mechanism for swivel chairs and other articles of furniture
DE3836397A1 (de) * 1988-10-26 1990-05-03 Stabilus Gmbh Laengenverstellbarer ausloesestoessel fuer einen ausloesemechanismus von gasfedern zur hoehenverstellung von moebeln
ES2024193A6 (es) * 1990-04-23 1992-02-16 Talleres Gain S Coop R L Cilindro a gas.
DE4420914A1 (de) * 1994-06-16 1995-12-21 Suspa Compart Ag Längenverstellbare Gasfeder und längenverstellbare Säule für Stühle, Tische mit einer längenverstellbaren Gasfeder
DE19651653A1 (de) * 1996-12-12 1998-06-18 Suspa Compart Ag Längenverstellbare Säule für Stühle oder dergleichen
US5961556A (en) * 1996-12-31 1999-10-05 Lord Corporation Prosthetic suspension unit having elastomeric energy storage units
DE19717531C2 (de) * 1997-04-25 1999-02-25 Stabilus Gmbh Höhenverstellbare Säule mit einer Übertragungseinrichtung
US5979845A (en) * 1997-05-16 1999-11-09 Steelcase Inc. Hub tube/washer assembly
TW427142U (en) * 1997-11-17 2001-03-21 Samhongsa Co Ltd Apparatus for adjusting the height of a swivel chair
KR20050019230A (ko) * 2003-08-18 2005-03-03 김성수 걸상용 발받침

Also Published As

Publication number Publication date
KR100882929B1 (ko) 2009-02-10
US7188819B2 (en) 2007-03-13
TWI230591B (en) 2005-04-11
DE10219583A1 (de) 2002-12-05
EP1262123A3 (de) 2004-01-28
EP1262123A2 (de) 2002-12-04
KR20020092226A (ko) 2002-12-11
ES2261552T3 (es) 2006-11-16
US20030006358A1 (en) 2003-01-09
DE50206187D1 (de) 2006-05-18

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