EP0052832A2 - Tête de commande pour ressort pneumatique, notamment pour le réglage de sièges de meubles d'assise - Google Patents

Tête de commande pour ressort pneumatique, notamment pour le réglage de sièges de meubles d'assise Download PDF

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Publication number
EP0052832A2
EP0052832A2 EP81109614A EP81109614A EP0052832A2 EP 0052832 A2 EP0052832 A2 EP 0052832A2 EP 81109614 A EP81109614 A EP 81109614A EP 81109614 A EP81109614 A EP 81109614A EP 0052832 A2 EP0052832 A2 EP 0052832A2
Authority
EP
European Patent Office
Prior art keywords
control
housing
switching
guide
gas spring
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
EP81109614A
Other languages
German (de)
English (en)
Other versions
EP0052832A3 (en
EP0052832B1 (fr
Inventor
Egon Bräuning
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.)
Protoned BV
Original Assignee
Protoned BV
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 Protoned BV filed Critical Protoned BV
Priority to AT81109614T priority Critical patent/ATE17436T1/de
Publication of EP0052832A2 publication Critical patent/EP0052832A2/fr
Publication of EP0052832A3 publication Critical patent/EP0052832A3/de
Application granted granted Critical
Publication of EP0052832B1 publication Critical patent/EP0052832B1/fr
Expired 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

Definitions

  • the invention relates to a control head for gas spring actuation, in particular for the seat plate adjustment on seating.
  • Gas springs are used in seating, such as chairs, armchairs, vehicle seats and the like, both for the seat height adjustment and for the seat surface adjustment. While the ejection force of the gas spring piston rod is usually only used for the upward movement of the unloaded seat plate and the piston rod is blocked after setting the desired seat height when adjusting the seat height, the damped-free mobility of the gas spring piston rod in connection with the natural ejection tendency and in cooperation with other suspension elements enable a weighing or rocking effect.
  • the spring ratios can be selected so that the seat arrangement remains "braked" in the current state of equilibrium.
  • the control element of the gas spring must be permanently pressed in, which is too complicated Locking and releasing mechanisms on the seating furniture or operating difficulties when adjusting the inclination can result.
  • the resulting inadequacies also include that a seating position that is currently perceived as pleasant is changed again with a slight change in body weight.
  • the free mobility of the seat arrangement which is often too extensive as a result of the described control difficulties, also has the consequence that the seat arrangement can move back to an optically or usefully unfavorable starting position after being fully relieved, and / or immediately starts moving again when reloaded.
  • the object of the invention is therefore to provide a means which allows the user of the seating furniture to select the type of seat inclination adjustment on gas spring-supported seating furniture in any position of the seating plate by a momentary push of a button.
  • control head to be actuated by an impulse control command for determining the mode of operation of a gas spring is proposed, which control head is characterized by patent claim 1. Embodiments thereof are defined by the dependent claims.
  • FIGS. 1A, 1B, 1 designates the upper or piston rod end of a gas spring, 2 the gas spring piston rod, and 3 the fastening end provided with a screw thread. This can directly or, as shown, with the interposition of a threaded press-in bush 4 ', into the assembly opening 4 of the control head housing 5 be used.
  • the gas spring control rod is designated, which coaxially passes through the piston rod 2 and acts on a (not shown) gas spring valve arrangement.
  • the gas spring control rod 6 is in the ejected position (piston rod blocked), in Fig. 1B, however, in the pushed-in position (piston rod "freely” movable).
  • a locking mechanism, generally designated 7, in the interior of the control head housing 5 defines these two positions of the control rod 6, as will be described in detail later. From this latching mechanism 7, the end 8 of a control sleeve 9, which is designed, for example, in the form of a push button, also protrudes below the upper end of the housing.
  • protruding coupling members are designated, which can be designed as a pivot pin, for example, when the gas spring is suspended. It goes without saying that the housing 5, which in the design of the gas spring control head according to the invention which is firmly connected to the piston rod 2, can also be provided with differently designed connection means.
  • FIGS. 2 and 3a-c Design details and operation of the parts in the embodiment of the control head according to the invention shown in the drawing will now be explained with reference to FIGS. 2 and 3a-c.
  • Identical reference symbols in the figures of the drawing denote identical or functionally identical components.
  • Housing 5 contains a continuous cylindrical recess 11 with a connection section 12 containing the already mentioned assembly opening 4, a (central) guide zone 13 and an actuating centering and coupling section 14.
  • the plan view shown in FIG. 2 to the left of the vertical sectional view Front view shows the housing 5 from the piston rod side.
  • the (middle) guide zone 13 preferably has a number of two to four guide cams 15 which are directed radially inward via a narrowed, offset base bore 13 'and which are arranged uniformly distributed over the circumference of the base bore 13' and are spaced apart from one another by an axially oriented guide groove 16 .
  • the guide cams 15 are provided on their axial end facing the connection section 12 with locking teeth 17, the peripheral profile of which best emerges from FIGS. 3a-c and will be explained later with reference to these figures.
  • a centering and stop sleeve 18 is pressed into the base bore 13 '.
  • the sleeve 18 serves both as a movement limiting element for the control sleeve 9 already mentioned in the latching mechanism 7 and for centering the end 8 of the control sleeve 9 in the housing 5 designed as a pushbutton element.
  • a differently designed centering and stop means can also be provided.
  • a reduction of the base bore 13 ′, which extends at least over part of the sleeve length, can also be provided, the movement stop for the control sleeve 9 approximately at the outer ends of the guide grooves 16 would have to be provided.
  • the control sleeve 9 is displaceably mounted in the central section of the cylindrical recess 11 within the guide cams 15 and, as the relevant end view to the left of the 'side view of the guide area 9' shows, has four, corresponding to the number of guide grooves 16 in the housing 5 Axially oriented guide wedges 19 reaching via an axial guide region 9 ′, which engage in the guide grooves 16 between the cams 15 and secure the control sleeve 9 against rotation in the housing 5.
  • the control sleeve 9 also has a central blind hole 20 and has on its opening side a transport toothing 21, the peripheral profile of which is shown in FIGS. 3a-c and will be explained in detail later.
  • the switching element 23 (see also FIGS. 1A, 1B) contains a switching head 24 formed on one end of the centering pin 22, consisting of a disk-shaped stop plate 25 and four axially oriented switching wedges 26 formed uniformly on the circumference of the plate and on the adjacent end of the centering pin 22.
  • the shifting wedges 26 are to the left of the shifting element shown in side view in the main illustration of FIG. 2 .
  • 23 shows, like the guide wedges 19, dimensioned such that they one part into the guide grooves 16. are slidable and thereby the switching element 23 in the cylindrical recess 11 in the housing 5 against twisting si chern.
  • the ends of the switching wedges 26 facing the centering pin 22 are provided with inclined switching surfaces 27.
  • the inclined surfaces 27 are oriented in the same direction as viewed in the circumferential direction and work together with the locking teeth 17 on the guide cams 15 and on the transport teeth 21 of the control sleeve 9 in the manner described below with reference to FIGS. 3a-c.
  • FIG. 3a shows schematically and in an exploded view, which is only intended for explanatory purposes, the developments of: (I) the guide cams 15 spaced apart by the guide grooves 16 and their locking teeth 17 in the interior of the control head housing 5, (II) the guide region 9 'of the control sleeve 9 with the guide wedges 19 arranged thereon and the end toothing 21; and (III) the switching element 23 or the switching head 24 with the switching wedges 26 arranged thereon, including the oblique switching surfaces 27, and the stop plate 25.
  • the housing containing the guide zone 13 will be described below in accordance with the arrangement of the mechanical parts in the control head and the related construction details 5 as "fixed" component (I), the control sleeve 9 designated as (II) as the actuating member, and the switching member 23 designated as (III) generally referred to as the control member.
  • the (longer) tooth surface 17 'of the locking teeth 17 in the fixed component I is referred to as the locking surface
  • the inclined surfaces 21 'of the transport toothing 21 on the control sleeve 9 are referred to as the feed surface
  • the relative counter-bevel 21''associated with the switching process is designated as the stop surface.
  • the tooth surfaces 17', 17 '' and the inclined surfaces 21 ' are clearly effective here as cam follower surfaces.
  • the spring symbols 28 are intended to indicate that the switching element 23 is always operationally under a pressure force exerted by the gas spring control rod 6 (FIGS. 1A, 1B), which is supported on the housing 5 via the piston rod end 3.
  • 29 on the "fixed” component (I) denotes the stop shoulder on the centering and stop sleeve 18 (FIG. 2), and 30 the free ends of the guide wedges 19 on the control sleeve 9, which ends in the switch position according to FIG. 3b as follows described lie against the sleeve 18 limiting movement.
  • control head described above for the actuation of the control elements of a gas spring thus makes it possible, in a compact arrangement, to provide a latching mechanism 7 with which the two modes of operation of the gas spring can be selected by pulse actuation: piston rod "blocked” and piston rod “freely movable” can be selected. It is essential that the control head according to the invention can be firmly attached as a self-contained device on the piston rod 2 of the gas spring, and that the mode of operation of the gas spring selected by pulse actuation is maintained after external preselection without external force or control action.
  • This impulse actuation can of course take place in the manner of a push button actuation as well as by other actuation means such as piston-cylinder units or by electromechanical means.
  • the anti-rotation lock of the control sleeve 9 could be achieved with a single guide wedge 19 or with a cross-sectional shape that generally deviates from around.
  • the latching of the switching element 23 can be achieved with differently designed latching zones in the latching toothing 17 fixed to the housing. This can finally be profiled in such a way that when the switching element 23 is shifted forward, it runs to the right.

Landscapes

  • Fluid-Damping Devices (AREA)
EP81109614A 1980-11-21 1981-11-11 Tête de commande pour ressort pneumatique, notamment pour le réglage de sièges de meubles d'assise Expired EP0052832B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81109614T ATE17436T1 (de) 1980-11-21 1981-11-11 Steuerkopf fuer gasfederbetaetigung, insbesondere fuer die sitzplattenverstellung an sitzmoebeln.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH8633/80 1980-11-21
CH8633/80A CH652902A5 (de) 1980-11-21 1980-11-21 Steuerkopf zur betaetigung der steuerstange der ventilanordnung einer gasfeder.

Publications (3)

Publication Number Publication Date
EP0052832A2 true EP0052832A2 (fr) 1982-06-02
EP0052832A3 EP0052832A3 (en) 1983-04-20
EP0052832B1 EP0052832B1 (fr) 1986-01-15

Family

ID=4342877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109614A Expired EP0052832B1 (fr) 1980-11-21 1981-11-11 Tête de commande pour ressort pneumatique, notamment pour le réglage de sièges de meubles d'assise

Country Status (4)

Country Link
EP (1) EP0052832B1 (fr)
AT (1) ATE17436T1 (fr)
CH (1) CH652902A5 (fr)
DE (1) DE3173534D1 (fr)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325798A1 (de) * 1983-07-16 1985-01-24 Friedrich W. Dauphin, Bürositzmöbelfabrik, 8561 Offenhausen Gasfeder, insbesondere zum einstellen von rueckenlehnen von stuehlen, wie buerodrehstuehlen u.a.
FR2593573A1 (fr) * 1986-01-28 1987-07-31 Bauer Fritz & Soehne Ohg Ressort pneumatique de longueur reglable, muni d'un dispositif de declenchement permanent
EP0350748A1 (fr) * 1988-07-15 1990-01-17 Giroflex-Entwicklungs AG Dispositif d'actionnement d'un élément à ressort pour un siège réglable
EP0593881A1 (fr) * 1992-10-21 1994-04-27 F. Martin Steifensand Sitzmöbel- und Tischfabrik GmbH & Co. KG Support de siège pour meubles d'assise
EP0723753A1 (fr) * 1995-01-28 1996-07-31 Sedus Stoll AG Mécanisme de blocage pour dossier réglable d'une chaise
WO1997007715A1 (fr) * 1995-08-23 1997-03-06 Global Upholstery Company Mecanisme de commande pour chaise
WO1997024955A1 (fr) * 1996-01-08 1997-07-17 Imarc S.R.L. Dispositif de reglage de l'inclinaison de la portion siege de chaises en general
US5671972A (en) * 1995-06-30 1997-09-30 Global Upholstery Company Seat back adjustment mechanism for a chair
US5868687A (en) * 1997-06-05 1999-02-09 Global Upholstery Company Chair equipped with massage apparatus
US6213552B1 (en) 1998-01-16 2001-04-10 Miotto International Company Multi-position chair control mechanism for synchronously adjusting the seat and backrest of a chair
EP1533540A1 (fr) 2003-11-18 2005-05-25 SUSPA Holding GmbH Ressort de compression réglable en longueur
CN100363536C (zh) * 2002-04-11 2008-01-23 微米技术有限公司 利用相控阵微波激发的沉积方法和沉积设备
US7721399B2 (en) 2005-10-25 2010-05-25 Global Total Office An Ontario Limited Partnership Having Global Upholstery Co.Inc. As Its General Partner Method for replacing a telescoping cylinder in a reconfigurable chair

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB930464A (en) * 1960-04-05 1963-07-03 Roll Tip England Ltd Improvements in writing instruments
FR2439564A1 (fr) * 1978-10-23 1980-05-23 Drabert Soehne Dispositif de manoeuvre, notamment pour ressorts pneumatiques de sieges

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB930464A (en) * 1960-04-05 1963-07-03 Roll Tip England Ltd Improvements in writing instruments
FR2439564A1 (fr) * 1978-10-23 1980-05-23 Drabert Soehne Dispositif de manoeuvre, notamment pour ressorts pneumatiques de sieges

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325798C2 (de) * 1983-07-16 1998-09-17 Buerositzmoebelfabrik Friedric Gasfeder zum Einstellen von Rückenlehnen von Stühlen, wie Bürodrehstühlen u.a.
DE3325798A1 (de) * 1983-07-16 1985-01-24 Friedrich W. Dauphin, Bürositzmöbelfabrik, 8561 Offenhausen Gasfeder, insbesondere zum einstellen von rueckenlehnen von stuehlen, wie buerodrehstuehlen u.a.
FR2593573A1 (fr) * 1986-01-28 1987-07-31 Bauer Fritz & Soehne Ohg Ressort pneumatique de longueur reglable, muni d'un dispositif de declenchement permanent
US4779851A (en) * 1986-01-28 1988-10-25 Fritz Bauer & Sohne Ohg Adjustable-length gas spring with permanent release mechanism
EP0350748A1 (fr) * 1988-07-15 1990-01-17 Giroflex-Entwicklungs AG Dispositif d'actionnement d'un élément à ressort pour un siège réglable
EP0593881A1 (fr) * 1992-10-21 1994-04-27 F. Martin Steifensand Sitzmöbel- und Tischfabrik GmbH & Co. KG Support de siège pour meubles d'assise
EP0723753A1 (fr) * 1995-01-28 1996-07-31 Sedus Stoll AG Mécanisme de blocage pour dossier réglable d'une chaise
US5671972A (en) * 1995-06-30 1997-09-30 Global Upholstery Company Seat back adjustment mechanism for a chair
WO1997007715A1 (fr) * 1995-08-23 1997-03-06 Global Upholstery Company Mecanisme de commande pour chaise
EP1348356A3 (fr) * 1995-08-23 2003-11-05 G.G.I. Sales & Marketing Inc. Mécanisme de commande pour chaise
US5899530A (en) * 1995-08-23 1999-05-04 Global Upholstery Company Control mechanism for a chair
US6019429A (en) * 1995-08-23 2000-02-01 Global Upholstery Company Control mechanism for a chair
AU717073B2 (en) * 1995-08-23 2000-03-16 G.G.I. Sales & Marketing Inc. Control mechanism for a chair
WO1997024955A1 (fr) * 1996-01-08 1997-07-17 Imarc S.R.L. Dispositif de reglage de l'inclinaison de la portion siege de chaises en general
US6074008A (en) * 1996-01-08 2000-06-13 Imarc S.P.A. Device for adjusting the inclination of the seating portion in chairs in general
US5868687A (en) * 1997-06-05 1999-02-09 Global Upholstery Company Chair equipped with massage apparatus
US6213552B1 (en) 1998-01-16 2001-04-10 Miotto International Company Multi-position chair control mechanism for synchronously adjusting the seat and backrest of a chair
CN100363536C (zh) * 2002-04-11 2008-01-23 微米技术有限公司 利用相控阵微波激发的沉积方法和沉积设备
EP1533540A1 (fr) 2003-11-18 2005-05-25 SUSPA Holding GmbH Ressort de compression réglable en longueur
DE10353903A1 (de) * 2003-11-18 2005-06-16 Suspa Holding Gmbh Längenverstellbare Druckfeder
KR100623831B1 (ko) 2003-11-18 2006-09-19 수스파 홀딩 게엠베하 길이 조정가능한 압축 스프링
US7201259B2 (en) 2003-11-18 2007-04-10 Suspa Holding Gmbh Adjustable-length compression spring
US7721399B2 (en) 2005-10-25 2010-05-25 Global Total Office An Ontario Limited Partnership Having Global Upholstery Co.Inc. As Its General Partner Method for replacing a telescoping cylinder in a reconfigurable chair

Also Published As

Publication number Publication date
EP0052832A3 (en) 1983-04-20
CH652902A5 (de) 1985-12-13
DE3173534D1 (en) 1986-02-27
ATE17436T1 (de) 1986-02-15
EP0052832B1 (fr) 1986-01-15

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