EP2926693A1 - Sessel mit mehreren Körperhaltungen - Google Patents

Sessel mit mehreren Körperhaltungen Download PDF

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Publication number
EP2926693A1
EP2926693A1 EP15159037.9A EP15159037A EP2926693A1 EP 2926693 A1 EP2926693 A1 EP 2926693A1 EP 15159037 A EP15159037 A EP 15159037A EP 2926693 A1 EP2926693 A1 EP 2926693A1
Authority
EP
European Patent Office
Prior art keywords
seat
chair
assembly
seat surface
flange
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Withdrawn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
EP15159037.9A
Other languages
English (en)
French (fr)
Inventor
Ralph E. Reddig
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.)
Haworth Inc
Original Assignee
Haworth Inc
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 Haworth Inc filed Critical Haworth Inc
Publication of EP2926693A1 publication Critical patent/EP2926693A1/de
Withdrawn legal-status Critical Current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
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/40—Telescopic guides
    • 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
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C13/00—Convertible chairs, stools or benches
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C4/00—Foldable, collapsible or dismountable chairs
    • A47C4/04—Folding chairs with inflexible seats
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/54—Supports for the arms
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/56—Parts or details of tipping-up chairs, e.g. of theatre chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C9/00—Stools for specified purposes
    • A47C9/02—Office stools not provided for in main groups A47C1/00, A47C3/00 or A47C7/00; Workshop stools
    • A47C9/025—Stools for standing or leaning against, e.g. in a semi-standing or half-seated position

Definitions

  • the present invention relates to chairs, and more particularly to a chair configured to provide multi-posture seating.
  • the present invention provides the comfort and adjustability characteristics of a task chair while also converting to a stand-up perch. More particularly, the present invention provides an office-type chair including a base, a height-adjustable pedestal that projects generally vertically upward, and a seat-back arrangement including a seat assembly and a back assembly.
  • the seat assembly includes a seat surface and a flange extending from a forward edge of the seat surface at an angle relative to the seat surface.
  • the seat assembly is adapted to pivot between a first generally horizontal position and a second generally vertical position. In the first position the seat surface is generally horizontal and functions as a task chair, and in the second position the seat surface is generally vertical and the flange functions as a perch.
  • the flange in the first position is angled rearward, such that a lower edge of the flange is positioned rearward of the forward edge of the seat surface.
  • the seat assembly includes a seat pan, a pivot rod disposed along a rear portion of the seat pan, and a ramp disposed at a rear corner of the seat pan.
  • the pivot rod is disposed within the carrier and is adapted to be received within the end cap channel and to travel along the channel as the seat assembly transitions from the first position to the second position.
  • the chair in another embodiment, includes a pair of spaced armrests pivotally mounted to the seat assembly, each armrest is pivotal between a first armrest position and a second armrest position.
  • the chair is positionable in a seated position and a perched position. In the seated position the seat surface and armrests are in their respective horizontal and first armrest positions and the chair functions as a task chair. In the perched position, the seat surface and armrests are in their respective vertical and second armrest positions and the chair functions as a perch.
  • the armrests pivot about a horizontal axis. In the first armrest position, a first surface defines a seated arm resting surface, and in the second position, a second surface defines a perched arm resting surface.
  • an office-type chair 10 is shown in accordance with one embodiment of the present invention.
  • the chair 10 is a multi-posture chair that is configured to be positioned into multiple seating arrangements, including a sitting or seated position and a leaning or perched position. Both the seated and perched positions can be adjusted to different heights as desired. The different seated and perched positions enable a worker or employee to assume multiple physical positions during the work day, which may increase the employee's level of comfort.
  • the chair 10 can also be used in conjunction with a height adjustable table, which are increasing in popularity along with attention to improved ergonomics, allowing both sitting and perched postures to be supported with a single chair solution.
  • the multi-posture chair 10 includes a support base 12, a height-adjustable and upwardly projecting pedestal 14, and a seat-back arrangement 16 that includes a seat assembly 18 and a back assembly 20.
  • the seat assembly 18 includes a seat surface 22 and a perch flange 24.
  • the flange 24 extends down from a lower surface 25 of the forward edge 26 of the seat assembly 18, and is positioned at an angle ⁇ relative to an underside of the seat surface 22, as shown in Fig. 1 .
  • the flange 24 may be angled relative to vertical, such that a lower edge 28 of the flange 24 is positioned rearward of the forward edge 26 of the seat assembly 18.
  • the angle ⁇ may be varied from application to application, depending on the desired characteristics of the perch seating surface, which is described in more detail below.
  • the flange 24 may extend substantially vertical, such that the angle ⁇ is approximately 90 degrees.
  • the support base 12 is rotatably mounted, via the pedestal 14, to the seat back arrangement 16 and seat assembly 18, and includes a number of radially extending arms 30, each having a caster 32 mounted to a distal end thereof.
  • four arms 30 and casters 32 are illustrated; however, more or fewer arms and casters are contemplated.
  • the casters 32 may be reverse braking casters that resist movement when weight is applied to the caster 32, as are commercially available and known to those skilled in the art.
  • the arms 30 are arranged in a configuration that is symmetrical about one axis and asymmetrical about a second, substantially perpendicular axis. This arrangement of the support base 12 increases the stability of the chair 10, particularly when used in the perched configuration.
  • rotation of the support base 12 may be limited within a range to ensure stability given the asymmetrical base support 12.
  • Figs. 9A-C an exemplary range of rotation is shown, where the seat back arrangement 16 may be rotated 60° in either direction. Of course, a lesser or greater degree of rotation is contemplated.
  • the pedestal 14 includes a vertical adjustment mechanism (not shown) for vertically adjusting the height of the chair 10.
  • the vertical adjustment mechanism may include a conventional hydraulic adjustment mechanism such as the type known to those skilled in the art for use in office chairs, wherein a first lower sleeve fits telescopically within a second upper sleeve, and the upper sleeve is vertically movable with respect to the lower sleeve.
  • the support base may be in the form of a substantially flat panel.
  • the seat assembly 18 in a seated position A, shown in Figs. 1 and 2 , the seat assembly 18 is positioned in a first, generally horizontal position and the chair 10 functions as a task chair.
  • the seat surface 22 of the seat assembly is configured to receive the user's buttocks in a seated posture
  • the back assembly 20 includes a front seating surface 34 that is configured to receive the user's back.
  • a second, perched position C the seat assembly 18 is positioned in a second, generally vertical position and the chair 10 functions as a perch.
  • the seat assembly 18 and back assembly 20 are folded together and arranged such that the flange 24 is positioned to support the user's buttocks in a substantially standing, semi-seated, or leaning posture.
  • the flange 24 is angled, therefore the lower edge 28 of the seating surface provided by the flange 24 is lowered relative to horizontal (by an angle complementary to angle ⁇ ).
  • angle ⁇ may be an acute angle. More specifically, angle ⁇ may be approximately 70° to 85°.
  • angle ⁇ may be approximately 70° to 85°.
  • the flange 24 has a length defined generally between the lower surface 25 of the seat assembly 18 and the lower edge 28 of the flange 24. The flange length is generally sufficient to support a substantial portion of a person when the chair is in the perched position.
  • the flange length may extend at a desired ratio with respect to the length of the seat surface 22 (defined generally between the front surface 34 of the back assembly 16 and the forward edge 26 of the seat assembly 18).
  • the perch length is about 47% of the seat surface length
  • the perch length is about 58% of the length of the seat surface.
  • a sufficient perch length for supporting a person in the perched position - without being too heavy for a user to pivot - is generally between about 40% and about 65% of the length of the seat support, and more particularly between about 50% and about 60% of the length of the seat support.
  • the back assembly 20 may include an elongated pocket or carrier 50 disposed on a lower portion thereof.
  • the carrier 50 extends substantially the width of the chair 10, and has a generally hollow and U-shaped cross-section defining an opening 52 at a top portion thereof.
  • An end cap 54 is positioned at each lateral end of the carrier 50, closing off the ends of the carrier 50.
  • the end caps 54 have substantially the same cross-sectional shape as the carrier 50, yet they are not hollow.
  • the end caps 54 each include, in mirror image relationship to one another, a channel 56 and an angled guide 58.
  • the channel 56 extends vertically along the forward surface of the end cap 54.
  • the angled guide 58 is quadrilateral-shaped protruding member that includes an angled face 60 on a forward surface thereof. Further, the angled guide 58 is positioned interior to the channel 56, also on the forward surface of the end cap 54.
  • the seat assembly 18 includes a seat pan 70 configured to provide structural support for the seat assembly 18.
  • the seat pan 70 includes armrest supports 72 that extend up therefrom, on which armrests 74 are mounted. Armrests 74 may be vertically adjustable, as is conventional. Additionally, the seat pan 70 includes a pivot rod 76 disposed along a rear edge 71 of the seat pan 70 and extending beyond the lateral sides of the seat pan 70.
  • the seat pan 70 also includes a wedge 78 that is disposed at a rear corner of the seat pan 70. The wedge is an elongated member and has a ramped surface 80 on an upper face thereof. A second wedge 78 may be included in the opposite rear corner of the seat pan 70.
  • a stability bar 90 is included on the underside of the seat pan 70 for providing additional stability to the seat assembly 18, particularly when in the perched position C.
  • the stability bar 90 is an elongated L-shaped member that is affixed by any suitable means to the underside of the seat pan 70.
  • the stability bar 90 is disposed in the fore-aft direction, with its short leg, referred to herein as support leg 92, positioned near the rearward edge 71 of the seat pan 70.
  • a pedestal cap 94 is positioned atop the pedestal 14 and mounts the seat back arrangement 16 to the pedestal 14.
  • the pedestal cap 94 includes a center hub 96 that has an upper surface 98 and a forward surface 100.
  • the support leg 92 engages the forward surface 100 of the center hub 96, bearing against any downward force applied to the seat assembly 18, such as the weight of an occupant.
  • the stability bar 90 is affixed to the seat pan 70, when the seat assembly 18 is pivoted up to the perched position C, the orientation of the stability bar 90 changes along with the assembly.
  • the support leg 92 engages the upper surface 98 of the center hub 96, bearing against any downward force applied to the seat flange 24, such as the weight of an occupant leaning on the flange 24. Further, the support leg 92 increases the stability of the seat assembly 18 by providing resistive force to help maintain the seat assembly 18 in the perched position C.
  • the seat assembly 18 and seat back assembly 20 may include cushions, as is conventional. Additionally, controls may be provided on the chair 10 for features such as tilting of the seat back assembly 18 and adjusting the armrest 74 height.
  • the chair 10 may be provided with typical stops and controls for releasably maintaining the chair in the seated position. Such stops, controls, and other related structure are conventional, and are not described or illustrated herein.
  • the multi-position chair 10 is configured to move between the seated and perched positions A and C by simply pivoting the seat assembly 18 up or down.
  • the user may pivot the forward edge 26 of the seat assembly 18 upward, about the pivot rod 76.
  • the seat assembly 18 is nearly vertical it is configured to slide down and into the perched position C.
  • the user may pull the seat assembly 18 up, and then pivot the seat assembly 18 down.
  • FIG. 6-8 a detail, cross-sectional view of the mechanism that enables the chair 10 to be transitioned between the seated and perched positions A and C is illustrated.
  • the pivot rod 76 In the seated position A, shown in Fig. 6 , the pivot rod 76 is disposed within the carrier 50, and each end of the pivot rod 76 is adapted to be received within the end cap 54 channel 56.
  • the ends of the pivot rods 76 are each bounded in the forward and rearward directions by a front wall 82 of the carrier 50 and a rear wall 84 of the channel 56, respectively.
  • Fig. 7 illustrates an intermediate position B between the seated and perched positions A and C.
  • the seat assembly 18 is pivoted somewhat upward, and the pivot rod 76 remains at the top of the channel 56.
  • the rearward edge 71 of the seat pan 70 is received in the carrier 50 through the opening 52.
  • the pivot rod 76 is adapted to travel along the channel 56 as the seat assembly 18 transitions from the seated position A to the perched position C, as shown in Fig. 8 .
  • the pivot rod 76 slides down the channel 56 until it reaches the bottom of the channel 56 and the ramped surface 80 of the wedge 78 abuts the angled face 60 of the angled guide 58.
  • the interaction between the wedge 78 and the angled guide 58 provides a positive stop and increased stability for the seat assembly 18 when in the perched position C.
  • the multi-posture chair 10 advantageously allows the user to vary his or her physical position throughout the workday, thereby increasing the employee's comfort. Moreover, the multi-posture chair 10 very easily transitions between the seated and perched positions. Further, as described above, in either of the seated and perched configurations, the seat-back arrangement 16 is readily vertically adjustable to change the height of the sitting or leaning surface. Accordingly, in addition to providing multiple seating arrangements, the chair 10 can accommodate the height of the individual user and/or the associated work surface.
  • the chair 200 is a multi-posture chair that is configured to be positioned into multiple seating arrangements, including a sitting or seated position and a leaning or perched position.
  • the chair 200 includes a seat pan and/or a seat frame 270 configured to provide structural support for the seat assembly 218.
  • the chair 200 also includes a pair of spaced armrests 274 that are pivotally mounted to the seat assembly 218 for use in both the seated and perched positions of the seat assembly 218.
  • each armrest 274 has a substantially hat-shaped geometry made up of a pivot portion 310, a center portion 312, and an extending portion 314. Alternative geometries may be used depending on the desired armrest application and usage.
  • the pivot and extending portions 310 and 314 are substantially vertical, and the center portion 312 is substantially horizontal and connects the upper ends of the pivot and extending portions 310 and 314. Further, the pivot portion 310 of the armrest 274 is mounted to the seat frame 270 such that the armrest 274 is pivotable about a horizontal axis A, the pivot point of which is positioned near a forward edge 226 of the seat surface 222. The lower end of the extending portion 314 is not fixed or mounted to the seat frame 270.
  • the armrests 274 are each pivotal substantially 180° between a first armrest position X, shown in Fig. 12A , and a second armrest position Y, shown in Fig. 12E . While the armrests 274 and seat assembly 218 are independently positionable, the chair is configured for the armrests 274 and seat assembly 218 to be cooperatively positioned in a seated position A and a perched position C. When the chair 200 is arranged in the seated position A, shown in Fig. 12A , the seat surface 222 is positioned substantially horizontally and the armrests 274 are positioned in their first armrest position X, such that the chair 200 functions as a task chair.
  • the seat surface 222 is positioned substantially vertically and the armrests 274 are positioned in their second armrest position Y, such that the chair 200 functions as a perch or stool. Additionally, in the first armrest position X, a first surface 316 of the center portion 312 defines the seated arm resting surface, and in the second position Y, a second surface 318 of the extending portion 314 defines the perched arm resting surface.
  • the chair 200 also includes a coat or purse hook 320 positioned at an upper end of the back assembly 220.
  • the hook 320 can be formed as a portion of a seat back frame 322 and includes an opening 324 and arms 326. A purse, coat, or other item may be inserted through the opening 324 and hung over the arms 326.
  • the hook 320 can also function as a handle for moving the chair 200.
  • the multi-position chair 200 is configured to move between the seated and perched positions A and C by simply pivoting the seat assembly 218 up or down and pivoting the armrests 275 up or down.
  • the user may pivot the armrests 274 forward, about the horizontal axis A, and then pivot the forward edge 226 of the seat assembly 218 upward, about the pivot rod 276.
  • the user may pivot the seat assembly 218 down and then pivot the armrests 274 rearward.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Special Chairs (AREA)
EP15159037.9A 2014-04-02 2015-03-13 Sessel mit mehreren Körperhaltungen Withdrawn EP2926693A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US201461973968P 2014-04-02 2014-04-02

Publications (1)

Publication Number Publication Date
EP2926693A1 true EP2926693A1 (de) 2015-10-07

Family

ID=52648946

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15159037.9A Withdrawn EP2926693A1 (de) 2014-04-02 2015-03-13 Sessel mit mehreren Körperhaltungen

Country Status (5)

Country Link
US (1) US20150282623A1 (de)
EP (1) EP2926693A1 (de)
CN (1) CN104970603A (de)
AU (1) AU2015201343A1 (de)
CA (1) CA2884846A1 (de)

Families Citing this family (10)

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Publication number Priority date Publication date Assignee Title
USD799875S1 (en) * 2015-08-18 2017-10-17 Brunswick Corporation Chair
US10051960B1 (en) 2015-12-02 2018-08-21 Brunswick Corporation Combination chair and desk apparatus
MX2018013230A (es) 2016-08-02 2019-08-29 Krueger Int Inc Silla de salon de clases que cuenta con respaldo multifuncion.
USD817651S1 (en) 2016-08-15 2018-05-15 Brunswick Corporation Stool
JP2018095062A (ja) * 2016-12-13 2018-06-21 トヨタ紡織株式会社 座席
CN108685374B (zh) * 2017-04-07 2020-04-28 及桦实业股份有限公司 可倾斜的工作椅
USD819998S1 (en) 2017-05-15 2018-06-12 Brunswick Corporation Portable leaning post
CN109953540B (zh) * 2018-01-30 2024-01-23 永艺家具股份有限公司 一种坐站工作椅
JP2019202625A (ja) * 2018-05-23 2019-11-28 トヨタ紡織株式会社 座席
US10780003B2 (en) 2019-01-04 2020-09-22 Haworth, Inc. Adjustable ergonomic chair

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FR2718620A1 (fr) * 1994-04-14 1995-10-20 Cuvellier Tritube Anc Ets Siège à assise escamotable.
FR2779621A1 (fr) * 1998-06-11 1999-12-17 R & D Ind Sarl Siege du type a misericorde
WO2007141054A1 (de) * 2006-06-09 2007-12-13 Siemens Transportation Systems Gmbh & Co. Kg Steuerbare klappsitze
DE102009023398A1 (de) * 2009-05-29 2010-12-02 Wrk Gmbh Klappsitz

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Publication number Priority date Publication date Assignee Title
FR2718620A1 (fr) * 1994-04-14 1995-10-20 Cuvellier Tritube Anc Ets Siège à assise escamotable.
FR2779621A1 (fr) * 1998-06-11 1999-12-17 R & D Ind Sarl Siege du type a misericorde
WO2007141054A1 (de) * 2006-06-09 2007-12-13 Siemens Transportation Systems Gmbh & Co. Kg Steuerbare klappsitze
DE102009023398A1 (de) * 2009-05-29 2010-12-02 Wrk Gmbh Klappsitz

Also Published As

Publication number Publication date
US20150282623A1 (en) 2015-10-08
CN104970603A (zh) 2015-10-14
CA2884846A1 (en) 2015-10-02
AU2015201343A1 (en) 2015-10-22

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