CN1142343A - Adjustable-length column for chair, Tables or like and upright tube therefor - Google Patents

Adjustable-length column for chair, Tables or like and upright tube therefor Download PDF

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Publication number
CN1142343A
CN1142343A CN96105489A CN96105489A CN1142343A CN 1142343 A CN1142343 A CN 1142343A CN 96105489 A CN96105489 A CN 96105489A CN 96105489 A CN96105489 A CN 96105489A CN 1142343 A CN1142343 A CN 1142343A
Authority
CN
China
Prior art keywords
upright tube
groove
annular section
upright
column jecket
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.)
Granted
Application number
CN96105489A
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Chinese (zh)
Other versions
CN1109527C (en
Inventor
赫伯特·沃尔夫
彼特·兰
乔治·班姆勒
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.)
Suspa Compart AG
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Suspa Compart AG
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 Suspa Compart AG filed Critical Suspa Compart AG
Publication of CN1142343A publication Critical patent/CN1142343A/en
Application granted granted Critical
Publication of CN1109527C publication Critical patent/CN1109527C/en
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
    • 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
    • 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
    • A47B9/10—Tables with tops of variable height with vertically-acting fluid cylinder

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Fluid-Damping Devices (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

A support with adjustable length for chairs and tables comprises an upright tube and a length-adjusting element (2) installed in the tube (1). A piston rod (7) of the length-adjusting element (2) is installed in the bottom (9) of the upright tube (1). The bottom (9) is opened toward inside of the upright tube (1) and provided with a groove (19) projected toward the upright tube (1) in the inside in the radius direction and an annular part (20) which is joined to the groove (19) to fix the piston rod (7). The groove (19) and the annular part (20) are unitedly formed with the upright tube (1).

Description

The column jecket and the upright tube that are used for the adjustable-length of chair, desk or similar object
The present invention relates to a kind of column jecket and a kind of upright tube of adjustable-length.
The column jecket of well-known this adjustable-length comes from European patent EP 0366889B1 (corresponding to No. 4969619 patent of the U.S.).In the column jecket that these are known, the neck-in that upright tube is lower, cross section with a semicircular, this zone, semi-circular section forms a groove, and the opening of this groove is towards opening by the longitudinal axis direction at center and to upright tube inside.The chassis is to be supported by the front portion at upright tube edge.The front portion at edge and the inwall of upright tube separate.With a crimping on the upright tube, groove or similarly thing with towards the upper end of upright tube fixed underpan.This method itself method through having obtained good explanation in practice.
In addition, the column jecket of described adjustable-length is substantially similar to No. 4245826 patent of the U.S. (corresponding to the column jecket of described adjustable-length of German patent DE-U7623238) herein, there, the edge that upright tube is lower is aduncate along radial direction.Like this, the chassis just can be placed on this limit.The bead portion that forms in upright tube can be used as towards the protective device of chassis upside.
Purpose of the present invention is exactly column jecket and the upright tube that a kind of general type is provided respectively, and this column jecket and upright tube have high stability, and structure is simple especially and very easy production.
According to the present invention, the column jecket and the upright tube of the adjustable-length that this purpose can be by a kind of so general type reach.And the column jecket of this adjustable-length has the described feature of characteristic in the claim 1, and upright tube is the described upright tube of claim 5 preamble and has feature described in claim 5 characteristic.
According to the employed method of this invention, there is no need to carry out other independent operation to fix a special chassis by means of a crimping or similar thing.The stability of polycrystalline substance is very high so that compare with piston rod, even very big near near the upright tube bottom or the bearing bottom being connected to, the piston rod of length adjustment parts also can keep quite stable.
Further advantage will embody from dependent claims significantly.
By with reference to the accompanying drawings embodiment being described, the detailed content of this invention may be obvious that.
Its accompanying drawing is:
Fig. 1 is vertical partial sectional view of a column jecket in this invention.
Fig. 2 is the longitudinal sectional view of partial view of the upright tube of column jecket.
Chair column jecket shown in the figure has a upright tube 1, and the gas spring 2 of an adjustable-length has been installed in upright tube 2, and it is a piston cylinder adjusting portion part that comes work with pneumatic or hydropneumatic mode.Upright tube 1 and gas spring 2 have a public longitudinal axis that passes through the center 3.
An overcoat 4 of gas spring 2 is supported in the guide rail axle sleeve 5, and can move along axis 3 directions.Guide rail axle sleeve 5 is mounted an end 6 shown in the figure, i.e. the end by the top of upright tube 1.The overcoat 4 of gas spring 2 is the overcoat of spring itself or the protective sleeve of that overcoat.
From the overcoat 4 outstanding parts of gas spring is a piston rod 7, and it is supported along the chassis 9 of the relative upright tube 1 of axis 3 directions by an axial roller bearing 8.Chassis 9 is set on the end 10 of upright tube 1, and 10 opposite the other end, end are first ends 6; In the drawings, end 10 is located at the bottom.The ledge 11 that passes the piston rod 7 of axial roller bearing 8 extends through the opening part 12 on chassis 9, and opening portion 12 is concentric with axis 3.A shim liner 13 and a spring locking ring 14 prevent that ledge 11 from coming off to bottom, chassis direction.The diameter of opening portion 12 is greater than the diameter of ledge 11.Use this fixing means, gas spring 2 can be with respect to upright tube 1 rotation.Owing between ledge 11 and the opening portion 12 radial clearance 15 is arranged, thus gas spring 2 can be in guide rail axle sleeve 5 proper motion, in other words, do not depart from upright tube 1.By piston rod 7, gas spring 2 is fixed in the upright tube 1 along axis 3 directions at last.Like this, when driving the vertical adjustment of pin 16 driving gas springs do, the overcoat 4 of gas spring 2 will stretch out or indentation conduit 1.Drive the end that pin 16 is placed on the overcoat 4 of gas spring 2, an end opposite with it is piston rod 7.Chair surface or table top just are fixed on and drive pin 16 places.
Adjacent end 10, upright tube 1 have one towards the end 10 tapered portion of shrinking a little, by it fully can be in the tapered hub of corresponding leg chair more than or similar object fixing upright tube 1.
Up to the present described column jecket is known and also can sees on market.It also can be used as the support column jecket of desk or similar object mainly as a kind of support column jecket of chair.For example, in Germany No. 1931012 patent (corresponding to No. 3711054 patent of the U.S.) and European patent EP 0133524B1 (corresponding to No. 4979718 patent of the U.S.) or European patent EP 0366889B1 (corresponding to No. 4969619 patent of the U.S.), just describe and illustrate.
The whole chassis 9 of upright tube 1 is integrally formed in together with upright tube 1, and promptly it is formed by the distortion of upright tube.Be bottom 18 below the tapering part 17, it is that relative tapering part compression forms, and chassis 9 also forms on it.There is the groove 19 of a side opening in the upright tube 1 on chassis 9, and what link to each other with groove 19 in axis 3 directions is an annular section 20 that is substantially the plane.This ring part 20 radially extends to axis 3, and conduct simultaneously is the supporting plane of roller bearing 8 axially, and opening 12 passes wherein.
As seen from the figure, groove 19 is a semicircle approx, does not have slightly pointed edge, and the joint portion 21 between groove 19 and the annular section 20 also is circular, and promptly it is not a wedge angle.For between groove 19 and annular section 20, forming a level and smooth connection, setover significantly towards annular section 20 towards the outside 22 annular section 20, groove 19, depart from the zone, semi-circular section.
As seen from the figure, the inside diameter D of the part 18 of upright tube 1 is than big several times of the diameter of piston rod 7.And the diameter d of roller bearing 8 ' significantly less than inside diameter D.3 mean breadth is 30 millimeters to 50 millimeters to groove 19 along radial direction to axis.The diameter d of piston rod 7 approximately is 10 millimeters.Diameter d ' radius be 20 millimeters to 30 millimeters.
As shown in Figure 1, the ledges 11 that protrude downwards by bottom 9 formed by shim liner 13 and spring locking ring 14, good as if immerse oneself in bottom 9, because protruding, groove 19 exceeded annular section 20 downwards.Therefore spring locking ring 14 is to be protected in the groove 19.It can not be owing to having the multilayer carpet to come off on the ground.And unhurt danger when a user's pin is met the bottom of this upright tube.

Claims (8)

1. one kind is used for chair, the column jecket of the adjustable-length of desk or similar object, it is made up of a upright tube (1) and pneumatic or hydropneumatic length adjustment parts, and upright tube (1) and length adjustment parts are to be installed together by a common central longitudinal axis (3), in upright tube (1), the overcoat of length adjustment parts (4) is radially supported, and can move up and down along axis (3) direction through guiding, the piston rod of length adjustment parts (7) is fixed on the bottom (9) of upright tube (1) near the direction along a line (3) its free end, near the end (10) of leaving the upright tube (1) that upright tube (1) locates away from overcoat (4), bottom (9) comprises a groove (19) and an annular section (20), the opening of this groove (19) is the inside towards upright tube (1), and be contained on the radial direction among the upright tube (1), this annular section (20) and groove (19) connect together, and piston rod (7) is installed on the annular section (20), it is characterized in that: groove (19) and annular section (20) and upright tube (1) are integrally formed.
2. column jecket as claimed in claim 1 is characterized in that: described groove (19) has one towards the outside (22) that annular section (20) departs from.
3. column jecket as claimed in claim 1 or 2 is characterized in that: the joint portion of groove (19) and annular section (20) is circular.
4. as one of them described column jecket of claim 1 to 3, on bottom (19), by an axial roller bearing (8) support piston connecting rod (7), it is characterized in that: the diameter of annular section (20) (D ') is greater than the diameter of roller bearing (8) (d ').
5. one kind is used for chair, upright tube in the column jecket of the adjustable-length of desk or similar object, the axis of wherein pneumatic or hydropneumatic length adjustment parts and central longitudinal axis (3) can be movable arbitrarily coaxially, the overcoat (4) of length adjustment parts is radially supported in upright tube (1), and can move up and down along axis (3) direction through guiding, the piston rod of length adjustment parts (7) is being fixed on the bottom (9) of upright tube (1) along axis (3) direction near its free end, leaving outside the upright tube (1) away from overcoat (4), near the end (10) of upright tube (1), bottom (9) comprises a groove (19) and an annular section (20), the opening of this groove (19) is the inside towards upright tube (1), and be contained on the radial direction among the upright tube (1), this annular section (20) and groove (19) connect together, and piston rod (7) is installed on the annular section (20), it is characterized in that: groove (19) and annular section (20) and upright tube (1) are integrally formed.
6. upright tube as claimed in claim 5 is characterized in that: groove (19) has one towards the outside (22) that annular section (20) departs from.
7. as claim 5 or 6 described upright tubes, it is characterized in that: the joint portion of groove (19) and annular section (20) is circular.
8. as one of them described upright tube of claim 5 to 7, this upright tube is used for column jecket, piston rod in this upright tube (7) is to be supported by the axial roller bearing on bottom (9), it is characterized in that: the diameter of annular section (20) (D ') is greater than the diameter of roller bearing (8) (d ').
CN96105489A 1995-05-30 1996-05-22 Adjustable-length column for chair, tables or like and upright tube therefor Expired - Fee Related CN1109527C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29508915.6 1995-05-30
DE29508915U DE29508915U1 (en) 1995-05-30 1995-05-30 Adjustable column for chairs, tables or the like. and standpipe for this

Publications (2)

Publication Number Publication Date
CN1142343A true CN1142343A (en) 1997-02-12
CN1109527C CN1109527C (en) 2003-05-28

Family

ID=8008732

Family Applications (1)

Application Number Title Priority Date Filing Date
CN96105489A Expired - Fee Related CN1109527C (en) 1995-05-30 1996-05-22 Adjustable-length column for chair, tables or like and upright tube therefor

Country Status (6)

Country Link
EP (1) EP0745341B1 (en)
JP (1) JP3848400B2 (en)
KR (1) KR100374068B1 (en)
CN (1) CN1109527C (en)
DE (2) DE29508915U1 (en)
TW (1) TW300426U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101135095B (en) * 2006-08-31 2011-02-02 海尔集团公司 Full-automatic washing machine and washing method thereof
US11388989B1 (en) 2015-01-24 2022-07-19 Office Kick, Inc. Desktop workspace that adjusts vertically
US11388991B1 (en) 2017-07-08 2022-07-19 Office Kick, Inc. Height adjustable desktop

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH105302A (en) * 1923-02-19 1924-07-01 Carel Olland Willem Adjustable liquid damper.
DE1529723B2 (en) * 1966-12-02 1977-03-10 Stabilus Gmbh, 5400 Koblenz SHOCK ABSORBER FOR HEIGHT-ADJUSTABLE FURNITURE PARTS
DE7623283U1 (en) * 1976-07-23 1977-01-13 Stabilus Gmbh, 5400 Koblenz GUIDE COLUMN FOR CONTINUOUSLY HEIGHT ADJUSTMENT OF CHAIR SEATS
US4640484A (en) * 1985-05-06 1987-02-03 Fichtel & Sachs Industries Support column with gravity dependent retention means
DE3833959A1 (en) * 1988-10-06 1990-04-12 Bauer Fritz & Soehne Ohg LENGTH ADJUSTABLE COLUMN FOR CHAIRS, TABLES OR THE LIKE
IL98036A0 (en) * 1991-05-02 1992-06-21 Yoav Cohen Plastic stand pipe support for load-bearing adjustable piston
DE4129089A1 (en) * 1991-09-02 1993-03-04 Suspa Compart Ag Support column for chair or tables adjustable in length - has tubular upright with concentric axle inside it, and length adjustment inside housing, with piston rod and bearing discs.
DE4129513A1 (en) * 1991-09-05 1993-03-11 Schaeffler Waelzlager Kg SPRING BEARING
DE4200786A1 (en) * 1992-01-14 1993-07-15 Suspa Compart Ag LENGTH ADJUSTABLE COLUMN FOR TABLES, CHAIRS OR THE LIKE
DE4209218C2 (en) * 1992-03-21 1995-03-16 Fichtel & Sachs Ag Vibration damper or suspension in telescopic design
DE9208620U1 (en) * 1992-06-26 1992-09-03 Fichtel & Sachs Ag, 8720 Schweinfurt Pin joint for a vibration damper
DE4227553A1 (en) * 1992-08-20 1994-02-24 Stabilus Gmbh Height adjustable support esp. for chair seat - has foot, upright, guide surface, support in bottom of upright.
US5511759A (en) * 1994-05-26 1996-04-30 Steelcase, Inc. Hydraulic chair height adjustment mechanism

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101135095B (en) * 2006-08-31 2011-02-02 海尔集团公司 Full-automatic washing machine and washing method thereof
US11944196B1 (en) 2015-01-24 2024-04-02 Office Kick, Inc. Desktop workspace that adjusts vertically
US11849843B1 (en) 2015-01-24 2023-12-26 Office Kick, Inc. Desktop workspace that adjusts vertically
US12342937B1 (en) 2015-01-24 2025-07-01 Office Kick, Inc. Desktop workspace that adjusts vertically
US11464325B1 (en) 2015-01-24 2022-10-11 Office Kick, Inc. Desktop workspace that adjusts vertically
US11470959B1 (en) * 2015-01-24 2022-10-18 Office Kick, Inc. Desktop workspace that adjusts vertically
US11800927B1 (en) 2015-01-24 2023-10-31 Office Kick, Inc. Desktop workspace that adjusts vertically
US11388989B1 (en) 2015-01-24 2022-07-19 Office Kick, Inc. Desktop workspace that adjusts vertically
US11857073B1 (en) 2015-01-24 2024-01-02 Office Kick, Inc. Desktop workspace that adjusts vertically
US11864654B1 (en) 2015-01-24 2024-01-09 Office Kick, Inc. Desktop workspace that adjusts vertically
US11910926B1 (en) 2015-01-24 2024-02-27 Office Kick, Inc. Desktop workspace that adjusts vertically
US12318003B1 (en) 2015-01-24 2025-06-03 Office Kick, Inc. Desktop workspace that adjusts vertically
US11925264B1 (en) 2015-01-24 2024-03-12 Office Kick, Inc. Desktop workspace that adjusts vertically
US12102229B1 (en) 2015-01-24 2024-10-01 Office Kick, Inc. Desktop workspace that adjusts vertically
US11980289B1 (en) 2015-01-24 2024-05-14 Office Kick, Inc. Desktop workspace that adjusts vertically
US12082696B1 (en) 2015-01-24 2024-09-10 Office Kick, Inc. Desktop workspace that adjusts vertically
US12082695B1 (en) 2015-01-24 2024-09-10 Office Kick, Inc. Desktop workspace that adjusts vertically
US11950699B1 (en) 2015-01-24 2024-04-09 Office Kick, Inc. Desktop workspace that adjusts vertically
US12121149B1 (en) 2015-01-24 2024-10-22 Office Kick, Inc. Desktop workspace that adjusts vertically
US12193569B1 (en) 2015-01-24 2025-01-14 Office Kick, Inc. Desktop workspace that adjusts vertically
US12226015B1 (en) 2015-01-24 2025-02-18 Office Kick, Inc. Desktop workspace that adjusts vertically
US12256842B1 (en) 2015-01-24 2025-03-25 Office Kick, Inc. Desktop workspace that adjusts vertically
US12318002B1 (en) 2015-01-24 2025-06-03 Office Kick, Inc. Desktop workspace that adjusts vertically
US11388991B1 (en) 2017-07-08 2022-07-19 Office Kick, Inc. Height adjustable desktop
US11395544B1 (en) 2017-07-08 2022-07-26 Office Kick, Inc. Keyboard tray that adjusts horizontally and vertically

Also Published As

Publication number Publication date
EP0745341A1 (en) 1996-12-04
EP0745341B1 (en) 2001-06-13
JP3848400B2 (en) 2006-11-22
KR100374068B1 (en) 2003-09-22
CN1109527C (en) 2003-05-28
KR960040258A (en) 1996-12-17
JPH09151977A (en) 1997-06-10
TW300426U (en) 1997-03-11
DE59607065D1 (en) 2001-07-19
DE29508915U1 (en) 1996-10-02

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