EP1449462A1 - Chaise - Google Patents

Chaise Download PDF

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Publication number
EP1449462A1
EP1449462A1 EP04001304A EP04001304A EP1449462A1 EP 1449462 A1 EP1449462 A1 EP 1449462A1 EP 04001304 A EP04001304 A EP 04001304A EP 04001304 A EP04001304 A EP 04001304A EP 1449462 A1 EP1449462 A1 EP 1449462A1
Authority
EP
European Patent Office
Prior art keywords
chair
seat plate
spring member
spiral spring
support unit
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Withdrawn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
EP04001304A
Other languages
German (de)
English (en)
Inventor
Eckhard Dipl.-Ing. Hansen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1449462A1 publication Critical patent/EP1449462A1/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Withdrawn legal-status Critical Current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
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • 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
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs

Definitions

  • the invention relates to a chair with a seat plate carried by a support unit and a backrest, which is connected to the support unit via a below the Seat plate extending connecting arm is connected to the pivotable the support unit is articulated, the seat plate in its rear area pivotable with the connecting arm or a protruding upward from this Articulation extension and in its front area via a bearing device is connected to the support unit and at least one spiral spring member is provided that supports the seat plate.
  • a chair with a synchronous mechanism is, for example, from DE 196 07 136 A1 known.
  • the chair described therein has a seat plate and a for the joint adjustment of the backrest connected to it, which makes one upright Section and one towards the front of the chair and one has under the seat plate extending connecting portion.
  • the seat plate can be swiveled with a swivel bearing near its front edge a base fixed support unit (or support frame) connected.
  • the under the connecting portion of the backrest projecting from the seat plate is pivotable on articulated to the support unit and supports the rear part of the seat plate.
  • the swivel bearing consists of the swivel shaft and an elongated hole set against it the backrest is designed to rise.
  • the swivel shaft is on the The underside of the seat is fixed, while the slot pattern is fixed on the Support unit.
  • the rear part of the seat plate is between the pivot point of the Armes on the support unit and the upright section of the backrest on Arm articulated.
  • a chair of the type mentioned is known from DE 12 97 306 B. at this chair the back part of the seat plate is supported by the flexible spring link, which in the area of its end facing the front of the chair is connected to the support unit. In the central area of its longitudinal extent it is supported on a support element of the support unit. To swing back the backrest for users with different weights one To counteract sufficient force, the pretension of the Bending spring element changes greatly depending on the weight of the user become. If a chair can be used for several different weights People are therefore required to make significant changes in the Adjustment can be carried out to enable ergonomic sitting. There is also a risk of incorrect settings. Furthermore, the area is within from which the setting of the pretension of the spiral spring element can be changed can, limited.
  • the object of the invention is to provide an improved synchronous mechanism, in which an advantageous weight compensation for users with different Weight is reached.
  • this is at least one spiral spring member thus pivotable in the manner of a two-armed lever or a rocker connected to the support unit, with the spiral spring member towards the rear portions of the chair and toward the front of the chair having.
  • the back of the chair is the side of the Designated chair on which the backrest is provided and as the front is called the opposite side of the chair.
  • the inventive design enables a very efficient automatic weight system be achieved, d. H. for users of different weights there is no Adjustment of the spring force that holds the backrest in its upright position Spring required to ensure the function of the chair.
  • the entire Synchronous mechanism By using a relatively inexpensive spiral spring member, the entire Synchronous mechanism relatively inexpensive.
  • the synchronous mechanism is included relatively simple to manufacture and ergonomically advantageous.
  • the one from the flexible spring link spring force to be applied is relatively low.
  • a leaf spring assembly can advantageously be used as the bending spring member, which has advantageous elastic properties and very inexpensive is.
  • the embodiment shown in the figures of an inventive Chair has a support unit (support bracket, support frame) 1. This can be used in conventional Way pivotable about a vertical axis 2 at the upper end a central vertical column 3, which is supported by a cross 4 is.
  • a backrest 5 has a backrest part 6 which is upright Backrest arm 7 is worn, the one below the seat plate 9 itself extending connecting arm 8 is connected to the support unit 1.
  • the link arm 8 is pivotable about a horizontal axis 10 on the Support unit 1 articulated.
  • the seat plate 9 comprises a seat support 11 and a seat cover 12. In one rear area of the seat plate 9 is about a horizontal axis 13 pivotable with an articulated extension projecting upward from the connecting arm 8 14 connected.
  • the seat support 11 has an axle pin 15 on which is rotatably mounted in the articulation extension 14.
  • the seat plate 9 In its front area, the seat plate 9 is supported by a bearing device 16 connected to the support unit 1, this bearing device 16 also pivoting the seat plate 9 relative to the support unit 1.
  • the storage facility 16 comprises a spiral spring member 17 in the form of a leaf spring assembly.
  • This spiral spring element 17 is in a central region of its longitudinal extent mounted on the support unit 1 so as to be pivotable about a horizontal pivot axis 18.
  • approximately triangular pivot part 19 is screwed on.
  • This has an elongated hole recess 21, which from one on the support unit arranged horizontal pivot pin 20 is penetrated.
  • the spiral spring member thus points in the direction of the pivot axis 18 Sections 24 extending to the front and back of the chair, 25 on.
  • the section extending towards the front is included provided an angle, preferably in the range between 20 and 40 °, wherein the one following this angling towards the front of the chair Area of the top of the spiral spring member 17 towards the front of the chair falling down.
  • the seat support 11 has a another horizontal journal 26 on which a roller that a bearing part 27th forms (see. Fig. 4), is rotatably mounted. This bearing part 27 is on the top of section 24 of the spiral spring member, in its to the front downward sloping area.
  • section 24 des Bending spring member 17, in the area in which the seat plate 9 is on this Section 24 supports, with the horizontal an angle preferably in the area between 20 and 45 °.
  • a counter bearing there are two guide surfaces on the support unit 1 28 arranged on the underside of attached to the support unit 1 Plates 29 are formed. Seen from the side, the guide surfaces close 28 with the horizontal preferably an angle in the range between 0 and 20 °, preferably falling towards the back of the chair are trained. With these guide surfaces act below the same arranged bearing parts 30 together, which is rotatable on the journal 26 stored roles are formed.
  • a single, in the central plane 31 (FIG. 4) of the chair extending spiral spring member 17 is provided and on both sides of the Guide surfaces 28 are provided at the front end region of the spiral spring member.
  • two spiral spring members could be provided, which are extend on both sides of the median plane of the chair and between those in the area a guide surface is arranged at its front ends. It would be in this Case of course each cooperating with the two spiral spring members Bearing parts 27 and a bearing part 30 cooperating with the guide surface provided.
  • the portion 25 of the bending spring member which extends towards the rear of the chair 17 supports the seat plate 9 in its rear area, and preferably in the area of its longitudinal extent in which the pivotable connection between the articulation extension 14 and the seat plate 9 exists, the distance between the support point seen in side view between the spiral spring member and the pivotable connection between the Articulation extension and the seat plate less than 10% of the (seen in side view) Length of the seat plate is.
  • the articulation extension 14 of the connecting arm 8 has here on both sides of the spiral spring member 17 extending upwards Tabs, the through holes of which pivot the journal 15.
  • the top of the section 25 can in the area adjacent to the seat plate 9 in the unloaded state of the backrest, for example, an angle between Include 0 and 30 ° with the horizontal, in the exemplary embodiment shown it is approximately horizontal.
  • Fig. 1 the unloaded state of the chair is shown when no user sitting on the chair.
  • the spiral spring member 17 is included provided with a certain bias.
  • the backrest 5 is thereby in her kept upright, not pivoted.
  • the bearing parts 30 are of the spiral spring member pressed against the guide surface 28 and due to the angle, which the guide surface includes with the area of the spiral spring member 17 in which the seat plate is supported on it becomes a force component generated in front. This angle can range, for example, between 15 ° and 50 °.
  • the forward swiveling of the backrest is done by a Limit limited, in the embodiment shown by a above-directed web 32 of the support unit 1 is formed, on which the bearing parts Strike 30.
  • the one acting on the spiral spring member 17 Prestressing the section 25 of the spiral spring member 17 against the seat plate 9 pressed so that the seat plate 9 of the spiral spring member in its rear area is supported.
  • the lifting of the bearing parts 30 from the guide surfaces 28 could by lower end of the web 32 to the rear in the area below the bearing parts 30 protruding webs are limited, including the striking of the bearing parts 30 damping elements damping these webs could be provided.
  • the rearwardly extending section 25 of the pivotally mounted Bending spring member 17 thus represents a kind of counter bearing for the seat plate, whereby an upright force is generated.
  • the pivotable mounting of the spiral spring member 17 could be in another Embodiment of the invention, for example, also with a flat provided and welded with this flattening to the bending spring member Swivel pin can be provided, which is rotatable in an elongated hole in the Support unit is mounted and supported from below by a clamping bolt is (analogous to the support of the pivot part 19 by the clamping bolt 22).

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  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
EP04001304A 2003-02-18 2004-01-22 Chaise Withdrawn EP1449462A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2422003 2003-02-18
AT0024203A AT411962B (de) 2003-02-18 2003-02-18 Stuhl

Publications (1)

Publication Number Publication Date
EP1449462A1 true EP1449462A1 (fr) 2004-08-25

Family

ID=30120890

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04001304A Withdrawn EP1449462A1 (fr) 2003-02-18 2004-01-22 Chaise

Country Status (3)

Country Link
EP (1) EP1449462A1 (fr)
AT (1) AT411962B (fr)
DE (1) DE10319316A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT504897B1 (de) * 2007-05-07 2008-09-15 Hansen Eckhard Dipl Ing Sitzmöbel
AT506292B1 (de) * 2008-04-22 2009-08-15 Eckhard Dipl Ing Hansen Sitzmöbel
ES2347636A1 (es) * 2010-02-26 2010-11-02 Grupo Forma 5, S.L Mecanismo perfeccionado para sillas de movimiento combinado de respaldo y asiento.
EP2818079A1 (fr) 2013-06-28 2014-12-31 Sitag AG Meubles destinés à s'asseoir

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007006065B4 (de) * 2007-02-02 2008-11-27 Simon Desanta Stuhl
DE102019131428B4 (de) * 2019-11-21 2022-02-03 Wilkhahn Wilkening + Hahne Gmbh + Co. Sitzmöbel

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369840A (en) * 1965-07-23 1968-02-20 Dare Inglis Products Ltd Chair tilting mechanism
DE2026929A1 (de) 1969-06-03 1970-12-17 Dupart, Jean, Sceaux (Frankreich) Stuhl mit sich automatisch anpassender Rückenlehne
DE3735256C2 (fr) 1987-10-17 1991-06-27 Ljubomir 6457 Maintal De Nikov
DE3916474C2 (fr) 1989-05-20 1992-02-13 Roeder Gmbh Sitzmoebelwerke, 6000 Frankfurt, De
WO1992020262A1 (fr) 1991-05-24 1992-11-26 Equus Marketing Ag Siege de travail, notamment siege de bureau
US5356199A (en) 1990-03-28 1994-10-18 Fritz Hansen A/S Mechanism for mounting the seat of a swivel chair on a chair frame
DE4326609A1 (de) 1993-08-07 1995-02-09 Taipei Design Center Duesseldo Bürostuhl
DE19607136A1 (de) 1995-02-28 1996-08-29 Eckhard Hansen Stuhl
EP0937426A2 (fr) * 1998-01-21 1999-08-25 Herman Miller, Inc. Chaise
EP0937326A1 (fr) 1996-11-07 1999-08-25 N.V. Raychem S.A. Systeme de fermeture pour epissures de cables
DE19950923A1 (de) * 1999-10-21 2001-04-26 Interstuhl Bueromoebel Gmbh Stuhl, insbesondere Bürostuhl

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3369840A (en) * 1965-07-23 1968-02-20 Dare Inglis Products Ltd Chair tilting mechanism
DE1297306B (de) 1965-07-23 1969-06-12 Dare Inglis Products Ltd Kippstuhl
DE2026929A1 (de) 1969-06-03 1970-12-17 Dupart, Jean, Sceaux (Frankreich) Stuhl mit sich automatisch anpassender Rückenlehne
DE3735256C2 (fr) 1987-10-17 1991-06-27 Ljubomir 6457 Maintal De Nikov
DE3916474C2 (fr) 1989-05-20 1992-02-13 Roeder Gmbh Sitzmoebelwerke, 6000 Frankfurt, De
US5356199A (en) 1990-03-28 1994-10-18 Fritz Hansen A/S Mechanism for mounting the seat of a swivel chair on a chair frame
WO1992020262A1 (fr) 1991-05-24 1992-11-26 Equus Marketing Ag Siege de travail, notamment siege de bureau
DE4326609A1 (de) 1993-08-07 1995-02-09 Taipei Design Center Duesseldo Bürostuhl
DE19607136A1 (de) 1995-02-28 1996-08-29 Eckhard Hansen Stuhl
EP0937326A1 (fr) 1996-11-07 1999-08-25 N.V. Raychem S.A. Systeme de fermeture pour epissures de cables
EP0937426A2 (fr) * 1998-01-21 1999-08-25 Herman Miller, Inc. Chaise
DE19950923A1 (de) * 1999-10-21 2001-04-26 Interstuhl Bueromoebel Gmbh Stuhl, insbesondere Bürostuhl

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT504897B1 (de) * 2007-05-07 2008-09-15 Hansen Eckhard Dipl Ing Sitzmöbel
AT506292B1 (de) * 2008-04-22 2009-08-15 Eckhard Dipl Ing Hansen Sitzmöbel
DE102009016180A1 (de) 2008-04-22 2009-10-29 Hansen, Eckhard, Dipl.-Ing. Sitzmöbel
ES2347636A1 (es) * 2010-02-26 2010-11-02 Grupo Forma 5, S.L Mecanismo perfeccionado para sillas de movimiento combinado de respaldo y asiento.
EP2818079A1 (fr) 2013-06-28 2014-12-31 Sitag AG Meubles destinés à s'asseoir

Also Published As

Publication number Publication date
DE10319316A1 (de) 2004-08-26
ATA2422003A (de) 2004-01-15
AT411962B (de) 2004-08-26

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