EP0169418B1 - Mechanismus zur vertikalen Verstellung von tragenden Möbelteilen - Google Patents

Mechanismus zur vertikalen Verstellung von tragenden Möbelteilen Download PDF

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Publication number
EP0169418B1
EP0169418B1 EP85108341A EP85108341A EP0169418B1 EP 0169418 B1 EP0169418 B1 EP 0169418B1 EP 85108341 A EP85108341 A EP 85108341A EP 85108341 A EP85108341 A EP 85108341A EP 0169418 B1 EP0169418 B1 EP 0169418B1
Authority
EP
European Patent Office
Prior art keywords
load
chamber
chambers
column
bearing
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
Application number
EP85108341A
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English (en)
French (fr)
Other versions
EP0169418A3 (en
EP0169418A2 (de
Inventor
Lucio Bugatti
Flavio Dall'era
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.)
SOL ID Srl
Original Assignee
SOL ID Srl
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Filing date
Publication date
Application filed by SOL ID Srl filed Critical SOL ID Srl
Priority to AT85108341T priority Critical patent/ATE48517T1/de
Publication of EP0169418A2 publication Critical patent/EP0169418A2/de
Publication of EP0169418A3 publication Critical patent/EP0169418A3/en
Application granted granted Critical
Publication of EP0169418B1 publication Critical patent/EP0169418B1/de
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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
    • A47B9/10—Tables with tops of variable height 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
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder

Definitions

  • This invention consists of an improved mechanism for selecting the vertical positioning of load-bearing furniture components.
  • this invention consists of an improved mechanism for selecting the vertical positioning of load-bearing components for seats, chairs and armchairs, tables and occasional tables and such like (furniture) according to the preamble of claim 1.
  • load-bearing components normally comprise a column.
  • the lower end of the column is attached to a base which ensures that it rests firmly on the ground.
  • the upper end of the column is attached to the seat, chair or armchair, table or occasional table or any other work surface.
  • the load-bearing columns are fitted with mechanisms which regulate the height of the seat or work surface from the ground.
  • the purpose of this is to allow the user to assume a position which is suitable for his height and physical build and which is more comfortable and appropriate for the work to be done.
  • helicoidal load-bearing columns mean that the seat has to be rotated to reach the desired level from the floor or the ground.
  • load-bearing column is fitted with components which are made up of several coaxial components.
  • a pressurised gas usually nitrogen is enclosed in the hollow space of these components.
  • the gas is distributed in various coaxial chambers, the gas being transferred from one to the other as necessary to achieve the change in height or vertical extension of the load-bearing column.
  • a lever which can be easily and comfortable reached by the person sitting on the chair, acts on the valves which control the movement of the pressurised gas between the coaxial chambers.
  • All the known mechanisms even the most recent and most sophisticated ones, have limitations or certain negative aspects.
  • the pressurised gas is contained in spaces which are adjacent to the outermost component of at least one of the aforementioned coaxial chambers of the load-bearing column. Because of this, the gas, which reaches several tens of atmospheres of pressure, can catch fire, particularly if it heats up because of high ambiental temperatures.
  • the improved mechanism covered by this invention provides a rational and complete solution to all these defects indicated above and is characterized by the features of the characterizing part of claim 1.
  • This mechanism is composed of a multiple structure forming the load-bearing column.
  • This structure has at least two coaxial components which enclose the coaxial chambers between which the pressurised gas moves.
  • This multiple structure has a double wall which is resistant to pressure and to eventual transitory or persistent superpressures.
  • This multiple structure also encloses the various gas passages and has a lever which acts as necessary on the valve components which are present in and act on the pressurised gas transfer circuit whenever it is necessary to adjust the height of the seat and/or other piece of furniture.
  • the improved mechanism covered by this invention is also fitted with a series of seals which are distributed among the various fixed and moving components in such a way as to guarantee optimal sealing.
  • At least some of the said seals are arranged in the mechanism in such a way that they can be removed and replaced if necessary.
  • the mechanism 10 which forms the load-bearing column of furniture components, is made up of an outer tubular component 12 which encloses a coherent coaxial tubular body 14, thereby forming a double structure.
  • a piston 32 which runs in the tubular body 14, divides the space into two chambers, 16 and 18.
  • the pressurised gas is contained in these chambers and is transferred from one to the other as necessary by the action of valve components which are described on the following pages.
  • the outer tubular component 12 has an aperture 20 from which a lever 22 extends. This lever is screwed onto a hinge 24 which is kinematically connected to a moving body 26, part of which has a reduced diameter. The axial movements of this component open and close the circuit.
  • the moving piston 32 which defines and separates the two chambers 16 and 18 can be defined as being an "entrainer". It forms a solid body with a rod 34 which contains the passage 30 running through to chamber 16.
  • the free end 36 of the above rod 34 has a shaped appendix attached to it. This is locked into a base, indicated as a whole as 38 and indicated in the figure as a broken line, which allows the seat or equivalent piece of furniture to rest firmly on the ground.
  • the upper part 40 of the outer tubular component 12 is attached, in the normal way, to the seat 41, which again is indicated by a broken line.
  • the structural characteristics of this seat are not described as they are not pertinent to the subject of this invention.
  • the lower part of the inner tubular component 34 corresponding to the base 38 is fitted with a step 42.
  • the support washer 44 of a flange 46 is kept pressed against this step 42.
  • the flange 46 contains the above-mentioned rod 34 by means of a seal 48.
  • Another outer seal 50 guarantees the sealing between flange 46 and the shaped end 52 of the inner tubular component 14 mentioned above.
  • a valve component 68 is pressure sealed into the upper part of inner tubular component 14, corresponding to the seat 42.
  • a hollow space 68' is left between the valve component 68 and the internal walls of tubular component 14 for passage of the gas.
  • valve component 68 The hermetic sealing between the upper part of the inner tubular body 14 and the valve component 68 is completed by seals 70 and 72.
  • the rod 34 and the piston 32 are pierced along their entire length.
  • a pierced pipe 62 preferably made of copper, is inserted into this aperture.
  • the upper end of this pipe 62 is attached to a small chamber 66 by means of a pipe-holder 64.
  • the passage pierced inside pipe 62 exits into the little chamber 66.
  • a hollow space 34' is left between pipe 62 and the inner wall of the aperture in rod 34 to allow passage of the gas.
  • Chamber 66 can be made to connect with chamber 18 by means of tubes 28, 28' and hollow space 68', by lowering moving body 26.
  • Seals 54 and 56 which are screwed to dorm a kind of stuffing box, by screws 58 and 60 respectively, enclose pipe 62 in correspondence to piston 32 and valve component 68, guaranteeing sealing.
  • the way in which the improved mechanism covered by this invention works can be briefly summed up as follows. With the weight of the person seated weighing on the seat 41, let us suppose that the height of the seat has to be adjusted to make the seat lower.
  • lever 22 is moved in the direction opposite to that shown by arrow A, thus halting the movement of the gas.
  • the pressurised gas moves in the opposite direction, i.e. from chamber 16 to chamber 18, thereby completing the operation of positioning the seat 41 at the height desired by the user.

Landscapes

  • Fluid-Damping Devices (AREA)
  • Chairs Characterized By Structure (AREA)
  • Furniture Connections (AREA)
  • Special Chairs (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Hinges (AREA)
  • Legs For Furniture In General (AREA)
  • Body Structure For Vehicles (AREA)

Claims (3)

1. Ein Mechanismus zur Auswahl der vertikalen Positionierung von tragenden Möbelteilen, bestehend aus einer tragenden Säule (10) zwischen dem Sitz oder der Arbeitsfläche und der Basis (38); die besagte Säule besteht aus zwei koaxialen röhrenförmigen Körpern (12, 14), einem beweglichen Kolben (32) mit Stab (34) in dem Hohlraum dieser Säule, der den Hohlraum in zwei koaxiale Kammern (16, 18) teilt, einem druckfesten Gas, das in diesen Kammern verteilt wird, einem Ventil (68) zur Regelung der Gasbewegung zwischen den koaxialen Kammern (16, 18) durch einen Hebel (22) und Mitteln zur Verbindung dieser Kammern (16, 18), gekennzeichnet durch die Tatsache, daß die Mittel zur Verbindung der Kammern (16, 18) mit einem Hohlraum (68') zwischen dem Ventil (68) und der Innenwand des röhrenförmigen Körpers (14), einer mit dem Raum (68') durch das Ventil (68) kommunizierenden Kammer (66), einem durchbohrten Kupferrohr (62), das an der Kammer (66) befestigt ist und bis in den Hohlraum des Kolbens (32) und Stabs (34) reicht, einem Hohlraum (34') zwischen dem Rohr (62) und der Innenwand der Staböffnung (34), und einem Durchgang (30) in dem Stab (34), der den Hohlraum (34') mit der Kammer (16) verbindet, versehen ist.
2. Der Mechanismus des Patentanspruchs 1, wobei das Rohr (62) am Kolben (32) und am Ventil (68) durch Dichtungen (54, 56) befestigt sind, die wiederum durch Schrauben (58, 60) angebracht sind.
3. Der Mechanismus gemäß Patentanspruch 1 oder 2, wobei das Ventil (68) einen beweglichen Körper (26) hat, von dem ein Teil einen kleineren Durchmesser hat, und mit der perfekten Abdichtung durch einen Hebel (22) in eine Kammer gebracht wird; es besteht außerdem aus den Durchgängen (28, 28'), die den Hohlraum (68') mit der besagten Kammer des beweglichen Körpers (26) verbinden.
EP85108341A 1984-07-23 1985-07-05 Mechanismus zur vertikalen Verstellung von tragenden Möbelteilen Expired EP0169418B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108341T ATE48517T1 (de) 1984-07-23 1985-07-05 Mechanismus zur vertikalen verstellung von tragenden moebelteilen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2266284U 1984-07-23
ITMI1984U22662U IT8422662U1 (it) 1984-07-23 1984-07-23 Dispositivo migliorato per il posizionamento selettivo, in altezza di componenti di arredo, quali sedili, poltroncine e/o poltrone.

Publications (3)

Publication Number Publication Date
EP0169418A2 EP0169418A2 (de) 1986-01-29
EP0169418A3 EP0169418A3 (en) 1986-11-26
EP0169418B1 true EP0169418B1 (de) 1989-12-13

Family

ID=11198998

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85108341A Expired EP0169418B1 (de) 1984-07-23 1985-07-05 Mechanismus zur vertikalen Verstellung von tragenden Möbelteilen

Country Status (5)

Country Link
EP (1) EP0169418B1 (de)
AT (1) ATE48517T1 (de)
DE (1) DE3574672D1 (de)
ES (1) ES288264Y (de)
IT (1) IT8422662U1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8420623D0 (en) * 1984-08-14 1984-09-19 Patrick J C Adjustable supporting column
KR100442536B1 (ko) * 2001-08-28 2004-08-04 이종환 회전의자의 작동레버 설치구조
ES2356202B1 (es) * 2008-10-10 2012-02-17 Abain Components, S.L. Columna de mesa con bloqueo y desbloqueo manual y con mecanismo de elevación.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1062120B (de) * 1957-04-30 1959-07-23 Ewald Wiemann Maschf Doppelseitig beaufschlagbarer, druckmittelbetriebener Rueckzylinder
BE779062A (fr) * 1971-02-10 1972-05-30 Corte & Cosso Soc Acc Sempl Dispositif oleopneumatique de levage et de mise en position, destine notamment a des sieges
DE2225342C3 (de) * 1972-05-25 1978-10-12 Suspa-Federungstechnik Fritz Bauer & Soehne Ohg, 8503 Altdorf Längenverstellbare Gasfeder
IT1136001B (it) * 1980-05-15 1986-08-27 Sergio Corti Dispositivo di supporto e di regolazione in altezza del sedile di sedie o poltrone, del ripiano di tavoli e simili

Also Published As

Publication number Publication date
EP0169418A3 (en) 1986-11-26
ES288264Y (es) 1986-07-01
ES288264U (es) 1985-12-01
EP0169418A2 (de) 1986-01-29
IT8422662V0 (it) 1984-07-23
IT8422662U1 (it) 1986-01-23
DE3574672D1 (de) 1990-01-18
ATE48517T1 (de) 1989-12-15

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