EP4007511A1 - Stuhl mit kippbarem sitz und rückenlehne - Google Patents

Stuhl mit kippbarem sitz und rückenlehne

Info

Publication number
EP4007511A1
EP4007511A1 EP20873685.0A EP20873685A EP4007511A1 EP 4007511 A1 EP4007511 A1 EP 4007511A1 EP 20873685 A EP20873685 A EP 20873685A EP 4007511 A1 EP4007511 A1 EP 4007511A1
Authority
EP
European Patent Office
Prior art keywords
seat
track
seat portion
back rest
movement
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Withdrawn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
EP20873685.0A
Other languages
English (en)
French (fr)
Other versions
EP4007511A4 (de
Inventor
Steven Pearse
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 EP4007511A1 publication Critical patent/EP4007511A1/de
Publication of EP4007511A4 publication Critical patent/EP4007511A4/de
Withdrawn legal-status Critical Current

Links

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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs

Definitions

  • a chair which includes a support body having a seat support portion and a back support portion.
  • a seat track is positioned on the seat support portion.
  • a first seat portion engages the seat track on the seat support portion for forward and rearward movement along the seat track between a forward position and a rearward position.
  • a second seat portion is provided having an upwardly extending back rest.
  • At least one back rest track is provided on one of the back support portion or the back rest.
  • At least one track follower is provide on another of the back support portion or the back rest.
  • the second seat portion is pivotally connected to the first seat portion. Movement of the first seat portion forward along the seat track toward the forward position draws the second seat portion forward with forward movement of the second seat portion causing movement of the back rest downwardly with such movement accommodated by cooperation of the at least one back rest track and the at least one track follower.
  • the chair as described above, allows for subtle forward and backward movement. This movement activates the major muscle groups in the legs without being distracting or interfering with work activities.
  • beneficial results may be obtained through the use of the chair, as described above, it has been found that more beneficial results may be obtained when the first seat portion is biased into the rearward position. With biasing, after the user has consciously exerted a force to move the first seat portion forward, the first seat portion is drawn slowly back to the starting position as the force is released. [0007] Although beneficial results may be obtained through the use of the chair, as described above, it has been determined that a seat track which is arcuate and symmetrical works the best. When the first seat portion moves forward, the second seat portion is drawn forwardly and upwardly. This serves a number of purposes. It serves to bias the first seat portion and the second seat portion to the rearward position, it accentuates the movement and it helps the user avoid sliding forward.
  • first seat portion and the second seat portion share an overlying fabric covering.
  • all or a portion of the overlying fabric covering the second seat portion may be provided with a friction inducing and pressure relieving profile.
  • FIG. 1 is a side elevation view of a chair having tilting seat and back in a rearward position.
  • FIG. 2 is a side elevation view of the chair of FIG. 1 in a forward position.
  • FIG. 3 is a detailed side elevation view of the seat track when the chair is in a rearward position, as shown in FIG. 1.
  • FIG. 4 is a detailed side elevation view of the seat track when the chair is in a forward position, as shown in FIG. 2.
  • FIG. 5 is a detailed side elevation view of the back rest track when the chair is in a rearward position, as shown in FIG. 1.
  • FIG. 6 is a detailed side elevation view of the back rest track when the chair is in a forward position, as shown in FIG. 2.
  • FIG. 7 is a top plan view of the chair of FIG. 1.
  • a chair generally identified by reference numeral 10, will now be described with reference to FIG. 1 through FIG. 7.
  • chair 10 consists of a support body 12 having a seat support portion 14 and a back support portion 16.
  • a seat track 18 is positioned on seat support portion 14.
  • a first seat portion 20 engages seat track 18 on seat support portion 14 for forward and rearward movement along arcuate seat track 18 between a forward position, as shown in FIG. 2 and a rearward position, as shown in FIG. 1. Movement of first seat portion 20 along seat track 18 is facilitated by ball bearings 22. It will be apparent that movement could be accommodated without the use of ball bearings or with other types of engagement. It is preferred that seat track 18 defines a symmetrical arcuate path.
  • FIG. 3 illustrates first seat portion 20 in a rearward portion on seat track 18.
  • first seat portion 20 on a forward position on seat track 18.
  • a second seat portion 24 is provided having an upwardly extending back rest 26.
  • first seat portion 20 and second seat portion 24 share an overlying fabric covering 28. That portion of overlying fabric covering 28 that covers second seat portion 24, preferably has a friction inducing and pressure relieving profile in the form of openings 30.
  • second seat portion 24 is pivotally connected by a hinge connection 36 to first seat portion 20.
  • hinge connection 36 when pressure is exerted to move first seat portion 20 forward along seat track 18 toward the forward position, second seat portion 24 is drawn forward with forward movement of first seat portion 20.
  • back rest 26 is shown in the rearward position.
  • back rest 26 is drawn downwardly with such movement being accommodated by back rest tracks 32 and track followers 34.
  • first seat portion 20 is biased by a spring 38 to the rearward position.
  • First seat portion 20 will always return to the rearward position when pressure is removed. It will be apparent that biasing can be accomplished by other means, such as a slope to induce a gravity return or a bungee cord.
  • support body 12 is illustrated has having a flat base 40 and a single vertical support column 42.
  • base 40 may be of various shapes, such as a spider or multi-legged shape and may also have casters at the ends for rolling chair 10.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
EP20873685.0A 2019-10-08 2020-10-07 Stuhl mit kippbarem sitz und rückenlehne Withdrawn EP4007511A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA3057933A CA3057933A1 (en) 2019-10-08 2019-10-08 Chair having tilting seat and back
PCT/CA2020/051343 WO2021068065A1 (en) 2019-10-08 2020-10-07 Chair having tilting seat and back

Publications (2)

Publication Number Publication Date
EP4007511A1 true EP4007511A1 (de) 2022-06-08
EP4007511A4 EP4007511A4 (de) 2023-08-16

Family

ID=75381943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20873685.0A Withdrawn EP4007511A4 (de) 2019-10-08 2020-10-07 Stuhl mit kippbarem sitz und rückenlehne

Country Status (4)

Country Link
US (1) US20220330700A1 (de)
EP (1) EP4007511A4 (de)
CA (1) CA3057933A1 (de)
WO (1) WO2021068065A1 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12030644B2 (en) * 2022-04-04 2024-07-09 Gulfstream Aerospace Corporation Seat system with adaptively adjustable seating surfaces

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US677234A (en) * 1901-01-23 1901-06-25 J A Kelly & Bros Adjustable reclining-chair.
GB111987A (en) * 1917-08-02 1917-12-20 Frank Henry Miles Improvements in Reclining Chairs.
GB824250A (en) * 1955-05-17 1959-11-25 H J Searle & Son Ltd Improvements in or relating to adjustable chairs and like articles of furniture
JPH0517957Y2 (de) * 1988-03-31 1993-05-13
JP3026232U (ja) * 1995-12-22 1996-07-02 日比野金属工業株式会社 板ばねロッキング機構を使用した椅子
DE19639741C2 (de) * 1996-09-06 1998-07-09 Thomas Jungjohann Sitzmöbelelement, insbesondere Polstermöbelelement, mit einer gekoppelten Rückenlehnen- und Sitzverstellung
GB0128301D0 (en) * 2001-11-27 2002-01-16 Siddall & Hilton Ltd Adustable beds or recliners
US7234772B2 (en) * 2003-04-02 2007-06-26 Wells Harold G Articulated seating mechanism
DE202005006119U1 (de) * 2005-04-16 2005-06-23 Ferdinand Lusch Gmbh & Co. Kg Liegesessel
JP5076162B2 (ja) * 2007-03-05 2012-11-21 コクヨ株式会社 椅子
KR100968540B1 (ko) * 2008-03-27 2010-07-08 듀오백코리아 주식회사 의자의 슬라이딩 방식 틸팅 장치
CN101401690A (zh) * 2008-11-14 2009-04-08 苏州舒适家具有限公司 木躺椅
DE102011008725A1 (de) * 2011-01-17 2012-07-19 himolla Polstermöbel GmbH Sitz-/Liegemöbel
WO2012170863A2 (en) * 2011-06-09 2012-12-13 Haworth, Inc. Forward sliding reclining chair
WO2013085214A1 (ko) * 2011-12-08 2013-06-13 한국생산기술연구원 좌판 슬라이드 틸팅 의자
US9815395B2 (en) * 2015-05-01 2017-11-14 4Knines, LLC Cover adaptable to multiple vehicle seat configurations
US20190261781A1 (en) * 2018-02-27 2019-08-29 SeatSational, LLC Travel kit
IT201800002761U1 (it) * 2018-06-14 2019-12-14 Poltroncina per ufficio con schienale e sedile mobili in sincronia.
FR3115741B1 (fr) * 2020-11-04 2023-04-07 Alstom Transp Tech Housse pour siège, siège associé et véhicule comportant un tel siège

Also Published As

Publication number Publication date
US20220330700A1 (en) 2022-10-20
EP4007511A4 (de) 2023-08-16
WO2021068065A1 (en) 2021-04-15
CA3057933A1 (en) 2021-04-08

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