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EP0056454A2 - Meuble d'assise, notamment chaise tournante de bureau - Google Patents

Meuble d'assise, notamment chaise tournante de bureau Download PDF

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Publication number
EP0056454A2
EP0056454A2 EP81109780A EP81109780A EP0056454A2 EP 0056454 A2 EP0056454 A2 EP 0056454A2 EP 81109780 A EP81109780 A EP 81109780A EP 81109780 A EP81109780 A EP 81109780A EP 0056454 A2 EP0056454 A2 EP 0056454A2
Authority
EP
European Patent Office
Prior art keywords
seat support
support
bearing block
seat
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.)
Withdrawn
Application number
EP81109780A
Other languages
German (de)
English (en)
Other versions
EP0056454A3 (fr
Inventor
Joachim Dauphin
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.)
Buerositzmobelfabrik Friedrich-W Dauphin & Co GmbH
Original Assignee
Buerositzmobelfabrik Friedrich-W Dauphin & Co 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 Buerositzmobelfabrik Friedrich-W Dauphin & Co GmbH filed Critical Buerositzmobelfabrik Friedrich-W Dauphin & Co GmbH
Publication of EP0056454A2 publication Critical patent/EP0056454A2/fr
Publication of EP0056454A3 publication Critical patent/EP0056454A3/fr
Withdrawn legal-status Critical Current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
    • A47C3/18—Chairs or stools with rotatable seat
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism

Definitions

  • the invention relates to a piece of seating furniture, in particular a swivel office chair, consisting of a base frame with an adjoining upward-facing support and a seat support carrying a seat surface and optionally also a backrest associated therewith, at least one of which is between the seat support and the support Support with.
  • the bearing bracket is provided in an articulated connection.
  • a known seating in which these measures of adjustability of the seat, backrest and height adjustment are carried out, is essentially formed in that a support is arranged on a base frame provided with or without castors, which has a second support part and these support parts are telescopically height-adjustable are.
  • a pedestal At the free end, namely the end of this support facing away from the foot frame, a pedestal is connected to this end, and this pedestal is connected to a seat support carrying the seat surface both via a rocker arm and an articulated connection.
  • the attachment of this end of the support to the bearing block is non-positively carried out in such a way that the end of the support provided with a cone can be pressed into a guide adapted to the conical surface of the end and there this end by the non-positive connection to the guide of the bearing block enables the required connection of the same.
  • the bearing block which has on one side in the longitudinal direction of the seat support the rocker formed from two parallel arms, is tiltably guided over the ends of these arms and an axis on the seat support.
  • the seat support itself is preferably U-shaped, with its downward-pointing legs having the bearings for the bearing block and the guide for its arms. On its side facing the seat is the.
  • a clamping head for a support bracket of the backrest is provided via a special articulation, and this support bracket is arranged axially displaceably in the clamping head and can be fixed there depending on the setting of the backrest.
  • the tiltability of the seat and thus also of the seat support about the axis between the latter and the bearing block can be determined by means of a locking device which acts on the projecting end of the arms of the rocker.
  • a piece of seating furniture in particular a so-called office chair, in which a U-shaped bearing part is provided below its seat surface or its seat support.
  • This bearing part is connected via an axis to a further U-shaped bearing part, so that these bearing parts can be tilted about their axis.
  • a support supporting the seat support is attached, which is designed to be height-adjustable and by means of which the seat can be brought to different heights.
  • an adjusting screw is provided between the one bearing part and the seat support, which, depending on the insertion into a thread of this bearing part, allows a more or less large tilting path.
  • the axis itself is arranged above the support on the bearing parts of the seating furniture and there designed as a torsion bar, which is clamped si that he always strives to bring the seat support back into a starting position.
  • the support itself can be designed as a threaded rod that can be screwed in and out of a thread, a guide, which is connected to the base. Although a certain tilting of the seat can also be made possible here, this is neither damped nor easily adjustable, and there is also no fixation provided to maintain the seat. Tilt position for a longer period of time (see. DE-AS 12 62 527).
  • the object of the invention is to further develop seating furniture in such a way that its seating surface can indeed perform tilting paths, but not only can these be defined in predetermined tilting tendencies, but the tilting paths can also be damped, and also the seating furniture after use, only if wanted to return to its starting position without having to reset the tilt position when it is used again.
  • this object is achieved in a piece of seating furniture of the type mentioned at the outset in that the bearing block is designed as a rocker and is rocked with its rocker bearing on the seat support, the axis of this rocker bearing being guided both by the seat support and the bearing points of the bearing block, as well as this axis is arranged at a right angle to the longitudinal axis of the support, and that the rocker bearing of the pedestal has contact surfaces symmetrical to its axis with adjoining boundaries of the rocking path, as well as the pedestal itself with parts of guide and locking means for fixing it on Has seat support and at least one spring means which limits the rocking path of the pedestal between it and the seat support.
  • the parts of the pedestal and thus the rocker bearing that serve to adjust and lock the rocking paths are designed so that they limit the maximum possible rocking path before the seating furniture tilts in, and on the other hand pass this rocking path in a damping manner with progressive spring detection, so that when the seating furniture is used, through a person is not brought into a rapid luffing position which could cause the person to fall or be startled.
  • Another advantage of these measures can be seen in the fact that the kinematics of the bearing block, the setting of the respective rocking paths and also their fixing are carried out very simply after the setting has been made, so that they can be triggered and initiated with simple, in particular lever movements.
  • the guide means are designed as form-fitting link guides and these are formed in particular from at least one elongated hole and an axle bolt guided therein, and the locking means as form-fitting detents and these in particular from at least two locking bores and one are alternately formed in this anchorable locking pin, and that parts of the guide and locking means are provided on the one hand on the seat support and other parts corresponding to these parts of the same means on the other on the bearing block.
  • the bearing block is, in particular, box-shaped and in the longitudinal direction of the U-shaped seat support has at least one arm cantilevered on this and this box-shaped part of the bearing block with a non-positive bearing for the the end of the support facing the seat support, and that, in addition to this bearing, the rocker bearing is also attached to this box-shaped part of the pedestal, but the guide and locking means, as well as the spring means for the pedestal, are attached to at least one arm and these are included the guiding, locking and spring means on the seat support are correspondingly in effect.
  • Such a measure on the pedestal not only has manufacturing advantages for it, but can also be adapted to the respective loads on the seating furniture, by lengthening or shortening the effective lever arm of the arm that is cantilevered on the pedestal itself.
  • Such a possibility in turn creates space for appropriately dimensioned rocking paths, so that with such a construction not only the forces acting on it are more easily detected, but also more effectively on the corresponding force-absorbing parts of the bearing block, seat support, spring means and others. can be transferred.
  • a further advantageous development of the invention consists in that the spring means is arranged in the region of the cantilevered end of the arm between the latter and the seat support and is equipped there with an adjusting means which changes the spring characteristic thereof.
  • Such a measure has the advantage that a longer spring travel can be gained, which gives the possibility of installing a spring with a softer spring characteristic.
  • This can be particularly advantageous for seating for office use, because there the possibility of changing the seating position is used more often than is the case with seating, e.g. 8. is the case in the workshop.
  • the fixing means for fixing the bearing bracket on the seat support are designed as a running toothing which is formed by a toothing part on the bearing block and a toothing part on the seat support, and of which a toothing part cannot be rotated and that other gear part is rotatable, but is lockable.
  • Such a design of a locking means enables a continuous adjustment of the inclination of the seat surface, whereby neither the slipping of the clamped parts nor a sagging of the same is possible due to the positive engagement that is constantly in use.
  • Such a running toothing also has the advantage that, with a corresponding translation between the toothed segment and the pinion, the adjustment can be carried out with little effort, which undoubtedly favors the comfort of the seating furniture.
  • a special embodiment of this locking means is also based on the fact that the rotatable toothing part is seated on a shaft which has a cone outside the seat of this toothing part, for which a further cone is provided in a sleeve, and that between this sleeve and a support of the seat carrier a spring connecting the coni is clamped, and the sleeve is articulated to an actuating means (lever).
  • the seating furniture 1 is essentially formed by a base frame 2, a support 3 connected to it and pointing upwards, and a seat support 4, to which a seat 5 and optionally also a backrest 6 are attached via a corresponding clamping head 7.
  • the support 3, which is preferably formed by two telescopic parts. enables the seat support 4 and thus also the seat surface 5 to be adjusted in height, and it can be designed as a mechanical support, for example a threaded rod, or as a gas spring.
  • the up and down movable part of the support is preferably provided at its projecting end 8 with a cone, for which a corresponding, also conical bearing 10 is provided on a seat tilt adjustment articulated to the seat support 4, for example in the form of a bearing block 9.
  • connection of this end 8 of the support 3 to the bearing block 9 is preferably a non-positive and in such a way that the taper of the end of the support with a taper of the bearing points of the bearing 10 or the bearing block 9 is brought into line and this end in this Bearing is held by pressing.
  • the bearing block 9 itself is preferably box-shaped and is provided with at least one plate part which receives the bearing 10 for the end 8 of the support 3, and also with at least one arm 11 which projects from this bearing block and which is firmly connected on the one hand to the bearing block and on the other protrudes from this.
  • rocking axis 13 of the rocking bearing 10 can be formed as a continuous axis or by two stub axles, which are mounted in bores 14, 15 of the seat support 4, regardless of their design.
  • the seat support 4 is preferably U-shaped, and its legs 16, 17, which are directed downward, are pulled downward so far that they cover the majority of the bearing block 9 laterally.
  • the contact surfaces 21, 22 on the bearing block 9 are preferably arranged symmetrically to the rocker bearing 12 and are designed there so that after passing the predetermined rocking path by placing the same on the bracket 18, they limit this rocking path.
  • the guide means 19 for guiding the bearing block 9 on the legs 16, 17 can be designed as form-fitting connecting parts, a simple embodiment of which consists in forming them from an elongated hole 23 and a bolt stub 24 guided therein. In such a case, it is advantageous to provide the respective elongated hole 23 on the respective leg 16, 17 of the seat support 4 and the respective pin stub 24 guided therein on the bearing block 9 itself or its arm 11 or vice versa.
  • latching points 25-27 are provided between at least one of the legs 16 and / or 17 of the seat support 4 and the pedestal, or preferably its arm 11, which in a simple embodiment as Drilling in the arm or bearing block and one of the legs can be carried out.
  • a locking pin 28 can be inserted and executed in these bores or locking points 25-27.
  • the locking pin 28, which can be preferably spring-loaded on the outer jacket of one leg 16 or 17, can be actuated of a lever 29 are inserted into or pulled out of the respective latching point 25 or 26 or 27, as a result of which the latching is effected or canceled in accordance with the actuation of the lever.
  • spring means 30 are also provided between these parts, the spring means preferably being adjustable in their spring characteristics. Due to this adjustability of the desired characteristic of the spring means 30, the rocking path of the varnish bracket 9 can be damped with respect to its rocking.
  • the spring means 30 can be designed as helical or plate springs or even more simply as rubber springs, and when they are designed as rubber springs, they can be easily entered with a corresponding hardness in the spring characteristics of the bearing block.
  • the actuation of the spring means 30 can be carried out by means of a screw 31 or by means of a spring-loaded lever, whereby it should certainly be more advantageous from the operating comfort of the seating furniture 1 to trigger the actuation mechanism of the spring means 30 with a lever.
  • the arrangement of the rocker bearing 12 at the level of the bearing 10 of the free end 8 of the support 3, in which case the rocker axis 13 of the rocker bearing is perpendicular to the longitudinal central axis X of the support, enables a balanced rocking of the pedestal 9 on both sides, because the weight of the seat 5 with the person sitting on it is transferred to the support in the axial direction via this rocker bearing. Due to this force, the rocker bearing 12 is largely relieved of lateral forces or eccentric forces, so that the corresponding inclination adjustment or rocker adjustment of the bearing block 9 and thus of the seat support 4 is made possible with little effort.
  • the seat 5 is attached to the seat support 4 analogously to other known constructions and, if a backrest 6 is also assigned to the seat furniture 1, it can be attached to this seat furniture via a support bracket 32 and the clamping head 7 articulated on the seat support.
  • the guide and fixing means 19, 20 for the bearing block 9 on the seat support 4 are designed as an elongated hole 23 with a stub pin 24 or locking points 25-27 with a locking pin 28.
  • the locking means 20 in particular can be designed as different types of form-fitting parts, as is indicated in FIGS. 6 to 8.
  • the gear 35 which is designed as a pinion, is arranged on a shaft 36, and this shaft is rotatably mounted on the seat support 4.
  • the shaft 36 can also be ascertained on the seat carrier, for which purpose the shaft is equipped with a spring-loaded braking means.
  • the shaft 36 is provided at its end facing the locking means 20 with a cone 37, for which a further cone 39 is attached to the locking means in a sleeve 38.
  • the sleeve 38 which is held in a pot-shaped sleeve 40, has at its end facing away from the cone 39 an articulated connection for an actuating part of the sleeve, which in a simple embodiment can preferably be designed as a lever 42.
  • a spring 41 is clamped between the bottom 43 of the cup-shaped sleeve 40 and the bottom 44 of the sleeve 38, which holds the cones 37, 39 of the sleeve and shaft 36 in a force-fitting manner.
  • the lever 42 is pulled in the direction of the arrow, which is supported with a lever part 46 on the bottom 43 of the bush 40 and thereby lifts the sleeve 38 against the pressure of the spring 41 from the cone 37 on the shaft 36 .
  • the sleeve 38 itself is supported on the seat support 4 via a bush 40 on its leg 16 or 17 and, in order not to be able to be rotated within its bush, can be equipped with a rotation lock, not shown in the drawing, between itself and the bush, so that this sleeve can only be guided longitudinally within its sleeve.
  • the shaft 36 can not be equipped with an additional pinion 35, but rather with a corresponding toothing.
  • the spring means 30, which is provided between the seat support 4 and the arm 11, is fastened at its ends to these parts to be resilient and additionally has an adjusting means 31 by means of which the spring characteristic of this spring means can be changed.
  • a corresponding biasing of this spring means 30 thus means a harder spring detection than a loosening of the spring, so that the inclination of the seat surface 5 experiences a more or less strong damping when passing its rocking path in accordance with the set spring detection.
  • the seat tilt adjustment is shown and described here using the example of an office swivel chair. However, this does not rule out providing such a seat tilt adjustment on other seating furniture, it also being irrelevant whether its seat support is supported by a support alone, for example by means of a gas spring, or by a different type of support structure.
  • a differently designed piece of seating furniture could be, for example, a piece of seating furniture whose seat support is placed on a crossbar and this crossbar would be connected to a base frame.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
EP81109780A 1981-01-21 1981-11-19 Meuble d'assise, notamment chaise tournante de bureau Withdrawn EP0056454A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3101692 1981-01-21
DE19813101692 DE3101692A1 (de) 1981-01-21 1981-01-21 "sitzmoebel, insbesondere drehbarer buerostuhl"

Publications (2)

Publication Number Publication Date
EP0056454A2 true EP0056454A2 (fr) 1982-07-28
EP0056454A3 EP0056454A3 (fr) 1982-08-18

Family

ID=6122976

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81109780A Withdrawn EP0056454A3 (fr) 1981-01-21 1981-11-19 Meuble d'assise, notamment chaise tournante de bureau

Country Status (2)

Country Link
EP (1) EP0056454A3 (fr)
DE (1) DE3101692A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000734A1 (fr) * 1983-08-09 1985-02-28 Pledge Office Chairs Limited Mecanisme d'inclinaison pour une chaise
GB2167947A (en) * 1984-10-27 1986-06-11 Philip Denman Tilt mechanism for chairs
WO1988000016A1 (fr) * 1986-07-02 1988-01-14 Peter Charlton Stevens Chaise pour position declive
US7841660B2 (en) 2005-09-15 2010-11-30 Agio International Company Limited Swivel rocker chair and assembly
CN106136659A (zh) * 2016-08-16 2016-11-23 廖子韧 一种坐具上的摆动结构

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4437731C2 (de) * 1994-10-21 1997-04-24 Franz Xaver Appel Stuhl mit neigbarer Sitzfläche
DE102008032239A1 (de) * 2008-05-21 2009-11-26 GfP (Gesellschaft für Produktivitätsplanung und Produktentwicklung) mbH Sitzvorrichtung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH221250A (de) * 1940-06-15 1942-05-31 Koller Karl Füllkopf für Gaserzeuger.
CA806983A (en) * 1965-07-23 1969-02-25 Dufton Ronald Chair tilting mechanism
DE1971194U (de) * 1967-05-20 1967-10-26 Bremshey & Co Stuhl.
DE1902670C3 (de) * 1968-02-01 1975-11-27 Gerdi Kerstholt Geb. Spaeth Sitz mit einstellbarem Sitzteil und einstellbarer Rückenlehne
DE2109844A1 (de) * 1971-03-02 1972-09-14 Thor Strand Wippe- und Schaukelbeschlaege fuer Stuehle,Sofas usw.
DE7510478U (de) * 1974-04-09 1976-09-23 Carmet, Ponte Sesto Di Rozzano, Mailand (Italien) Kipp-schwingvorrichtung fuer sitze, sessel u.dgl.
DE2701573A1 (de) * 1977-01-15 1978-07-20 Neumueller Konrad Sitzmoebel, insbesondere drehbarer arbeitsstuhl
DE2820533C2 (de) * 1978-05-11 1983-01-05 Friedrich-W. Dauphin, Bürositzmöbelfabrik, 8561 Offenhausen Sitzmöbel, insbesondere drehbarer Arbeitsstuhl

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985000734A1 (fr) * 1983-08-09 1985-02-28 Pledge Office Chairs Limited Mecanisme d'inclinaison pour une chaise
GB2154444A (en) * 1983-08-09 1985-09-11 Pledge Office Chairs Tilting mechanism for a chair
US4627662A (en) * 1983-08-09 1986-12-09 Pledge Office Chairs Limited Tilting mechanism for a chair
GB2167947A (en) * 1984-10-27 1986-06-11 Philip Denman Tilt mechanism for chairs
WO1988000016A1 (fr) * 1986-07-02 1988-01-14 Peter Charlton Stevens Chaise pour position declive
AU605496B2 (en) * 1986-07-02 1991-01-17 Dixon, Barry James Posture chair
US7841660B2 (en) 2005-09-15 2010-11-30 Agio International Company Limited Swivel rocker chair and assembly
CN106136659A (zh) * 2016-08-16 2016-11-23 廖子韧 一种坐具上的摆动结构

Also Published As

Publication number Publication date
DE3101692A1 (de) 1982-08-19
EP0056454A3 (fr) 1982-08-18

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Inventor name: DAUPHIN, JOACHIM