US20160235206A1 - Chair with a tilting seat - Google Patents

Chair with a tilting seat Download PDF

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Publication number
US20160235206A1
US20160235206A1 US15/040,640 US201615040640A US2016235206A1 US 20160235206 A1 US20160235206 A1 US 20160235206A1 US 201615040640 A US201615040640 A US 201615040640A US 2016235206 A1 US2016235206 A1 US 2016235206A1
Authority
US
United States
Prior art keywords
backrest
chair
seat
deformable
transverse band
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.)
Abandoned
Application number
US15/040,640
Other languages
English (en)
Inventor
Alessandro Piretti
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.)
Pro Cord SpA
Original Assignee
Pro Cord SpA
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 Pro Cord SpA filed Critical Pro Cord SpA
Assigned to PRO-CORD S.P.A. reassignment PRO-CORD S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PIRETTI, ALESSANDRO
Publication of US20160235206A1 publication Critical patent/US20160235206A1/en
Abandoned 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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • 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
    • A47C3/12—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats with shell-shape seat and back-rest unit, e.g. having arm rests
    • 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
    • A47C7/02—Seat parts
    • A47C7/16—Seats made of wooden, plastics, or metal sheet material; Panel seats

Definitions

  • the present invention relates to a chair comprising a seat and a backrest, in which the backrest is tiltable backwards relative to the seat under a backward thrust applied by the user.
  • a chair comprising a fixed support structure including a pair of front legs and a pair of rear legs, a seat, fixed to the fixed support structure, and a backrest with a backrest panel with an arcuate shape connected in an oscillating manner to the fixed support structure.
  • the backrest comprises two side connecting elements of plastic material, each of which comprises a cylindrical sleeve fixed to an upper portion of a respective rear leg.
  • the side connecting elements of the backrest have respective bellows-shaped deformable portions, integrally formed with the respective cylindrical sleeve.
  • the bellows-shaped deformable portions are connected in a fixed manner to respective side portions of the backrest panel.
  • Monocoque chairs are characterized by a monolithic structure in which the seat and backrest are formed as a single molded panel of plastic material. Monocoque chairs do not usually have backwardly-tiltable backrests.
  • the present invention aims to provide a monocoque chair equipped with a tiltable backrest.
  • this object is achieved by a chair having the characteristics forming the subject of claim 1 .
  • FIG. 1 is a perspective view of a monocoque chair according to the present invention.
  • FIG. 2 is a rear perspective view of the chair of FIG. 1 .
  • FIG. 3 is a perspective view on an enlarged scale of the part indicated by the arrow III in FIG. 1 .
  • FIG. 4 is a cross-section along the line IV-IV of FIG. 1 .
  • FIGS. 5 and 6 are longitudinal cross-sections of the chair of FIG. 1 , in the rest position and in the backward-tilted position, respectively.
  • FIG. 7 is a perspective view illustrating a variant of the chair of FIG. 1 .
  • the chair 10 designates a chair according to the present invention.
  • the chair 10 comprises a base 12 , which carries a monocoque structure 14 in which a seat 16 and a backrest 18 are formed as a single panel of injection-molded plastic material essentially in the shape of an L.
  • the base 12 has two front legs 20 and two rear legs 22 fixed to each other by an upper structure 24 to which the monocoque structure 14 is fixed.
  • the base 12 could have a rotatable central column.
  • the base 12 can be of any type.
  • the monocoque structure 14 including the seat 16 and the backrest 18 is obtained as a single piece of injection-molded plastic material, for example nylon.
  • the monocoque structure 14 comprises a bellows-shaped deformable transverse band 26 , which extends in the transverse direction between two opposite side edges 28 of the seat 18 .
  • the deformable transverse band 26 is integrally formed with the monocoque structure 14 during the injection-molding step and is formed as one piece with the backrest 18 .
  • the deformable transverse band 26 divides the backrest 18 in the transverse direction into a lower backrest portion 18 a and an upper backrest portion 18 b .
  • the lower backrest portion 18 a is connected as a single piece with the rear portion of the seat 16 .
  • the upper backrest portion 18 b is movable backwards with respect to the lower backrest portion 18 a between a rest position and a backward-tilted position.
  • the backward movement of the upper backrest portion 18 b under a backward thrust applied by the user's back is possible thanks to the elastic deformation of the deformable transverse band 26 .
  • the deformable transverse band 26 comprises a plurality of transverse ribs 30 with C-shaped cross-sections, each of which extends in the transverse direction between the opposite side edges 28 of the backrest 18 .
  • the transverse ribs 30 are connected to each other at their ends and alternately face towards the front part and towards the rear part of the chair.
  • the deformable transverse band 26 comprises three transverse ribs 30 .
  • the upper rib and the lower rib have the respective concave part facing towards the front of the chair and a central rib that joins together the upper rib and the lower rib, and has the concave part facing the rear part of the chair.
  • FIGS. 5 and 6 are longitudinal cross-sections showing the chair 10 in the rest position and in the backward-tilted position, respectively.
  • the deformable portion 26 allows the backward tilt of the upper backrest portion 18 b relative to the lower backrest portion 18 a .
  • the deformable transverse band 26 elastically returns to its undeformed position and returns the backrest 18 to the rest position illustrated in FIG. 5 .
  • the same deformable transverse band 26 also forms a stop which prevents any further backward movement of the upper backrest portion 18 b beyond the position of maximum backward inclination illustrated in FIG. 5 . In fact, as shown in FIG.
  • the backrest 18 comprises a single deformable transverse band 26 .
  • more deformable transverse bands could be provided, spaced apart in the vertical direction. If the deformable transverse bands are of a number greater than one, they could be distributed along the backrest 18 .
  • the deformable transverse band 26 extends continuously between the opposite side edges 28 of the backrest 18 .
  • the backrest 18 could be provided with a through-opening 32 , which interrupts the deformable transverse band 26 in the transverse direction.
  • the opening 32 visually separates the backrest 18 from the seat 16 and provides a visually lighter chair, with an elastic behavior more easily deducible by the user.
US15/040,640 2015-02-17 2016-02-10 Chair with a tilting seat Abandoned US20160235206A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102015000006504 2015-02-17
ITUB2015A000149A ITUB20150149A1 (it) 2015-02-17 2015-02-17 Sedia con sedile oscillante

Publications (1)

Publication Number Publication Date
US20160235206A1 true US20160235206A1 (en) 2016-08-18

Family

ID=53267478

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/040,640 Abandoned US20160235206A1 (en) 2015-02-17 2016-02-10 Chair with a tilting seat

Country Status (4)

Country Link
US (1) US20160235206A1 (it)
EP (1) EP3058848A1 (it)
CA (1) CA2920268A1 (it)
IT (1) ITUB20150149A1 (it)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD804231S1 (en) * 2016-10-11 2017-12-05 Harvest-Excel International Pte. Ltd. Seatback
EP3400838A1 (de) * 2017-05-08 2018-11-14 Sedus Stoll AG Verbindungsanordnung für eine rückenlehne, büro- oder konferenzsitzmöbel und verfahren zur herstellung einer verbindungsanordnung für eine rückenlehne
US11052800B2 (en) * 2017-02-17 2021-07-06 Jsp Corporation Seat core material
US11224292B2 (en) * 2016-12-28 2022-01-18 Jsp Corporation Seat core material
US20220386777A1 (en) * 2021-06-04 2022-12-08 Pro-Cord S.P.A. Chair with a flexible backrest

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133765A (en) * 1962-08-30 1964-05-19 Ion Corp Chair
US3669496A (en) * 1970-12-03 1972-06-13 American Desk Mfg Co Chair and seat and back unit therefor
US4533174A (en) * 1980-02-22 1985-08-06 Gregg Fleishman Portable furniture
US4733910A (en) * 1985-03-18 1988-03-29 Sebel Furniture Ltd. Article of furniture
US4856846A (en) * 1986-02-13 1989-08-15 Hartmut Lohmeyer Chair with a seat and an inherently elastically pliable back rest
US4913493A (en) * 1987-09-22 1990-04-03 Strafor S.A. Flexible structure
US4981326A (en) * 1987-09-22 1991-01-01 Steelcase Strafor Ergonomic chair
US5102196A (en) * 1988-08-31 1992-04-07 Kokuyo Co., Ltd. Chair provided with a backrest
US5123702A (en) * 1990-10-24 1992-06-23 Shelby Williams Industries, Inc. Interaction-high density stacking chair
US5314240A (en) * 1991-05-21 1994-05-24 Itoki Co., Ltd. Shell structure for use with a chair having synchronously moving seat and seat back
US5340197A (en) * 1991-01-20 1994-08-23 Fritz Hansen A/S One-piece seat shell
US5538326A (en) * 1994-11-14 1996-07-23 Milsco Manufacturing Company Flexible unitary seat shell
US20040251729A1 (en) * 2003-06-13 2004-12-16 Olson Ogden R. Stackable chair with flexing frame
US8226165B2 (en) * 2006-06-13 2012-07-24 Ts Tech Co., Ltd Vehicle seat
US8991924B2 (en) * 2011-03-08 2015-03-31 Pro-Cord S.P.A. Chair with tilting backrest
US9173492B1 (en) * 2014-06-06 2015-11-03 Jacques Fortin Self-reclining chair
US20160242552A1 (en) * 2015-02-23 2016-08-25 Plano Molding Company Seating device with storage

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4892356A (en) * 1988-07-27 1990-01-09 Chromcraft Furniture Corp. Chair shell
JP5148869B2 (ja) * 2005-12-28 2013-02-20 愛知株式会社 椅子

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3133765A (en) * 1962-08-30 1964-05-19 Ion Corp Chair
US3669496A (en) * 1970-12-03 1972-06-13 American Desk Mfg Co Chair and seat and back unit therefor
US4533174A (en) * 1980-02-22 1985-08-06 Gregg Fleishman Portable furniture
US4733910A (en) * 1985-03-18 1988-03-29 Sebel Furniture Ltd. Article of furniture
US4856846A (en) * 1986-02-13 1989-08-15 Hartmut Lohmeyer Chair with a seat and an inherently elastically pliable back rest
US4913493A (en) * 1987-09-22 1990-04-03 Strafor S.A. Flexible structure
US4981326A (en) * 1987-09-22 1991-01-01 Steelcase Strafor Ergonomic chair
US5102196A (en) * 1988-08-31 1992-04-07 Kokuyo Co., Ltd. Chair provided with a backrest
US5123702A (en) * 1990-10-24 1992-06-23 Shelby Williams Industries, Inc. Interaction-high density stacking chair
US5340197A (en) * 1991-01-20 1994-08-23 Fritz Hansen A/S One-piece seat shell
US5314240A (en) * 1991-05-21 1994-05-24 Itoki Co., Ltd. Shell structure for use with a chair having synchronously moving seat and seat back
US5538326A (en) * 1994-11-14 1996-07-23 Milsco Manufacturing Company Flexible unitary seat shell
US20040251729A1 (en) * 2003-06-13 2004-12-16 Olson Ogden R. Stackable chair with flexing frame
US8226165B2 (en) * 2006-06-13 2012-07-24 Ts Tech Co., Ltd Vehicle seat
US8991924B2 (en) * 2011-03-08 2015-03-31 Pro-Cord S.P.A. Chair with tilting backrest
US9173492B1 (en) * 2014-06-06 2015-11-03 Jacques Fortin Self-reclining chair
US20160242552A1 (en) * 2015-02-23 2016-08-25 Plano Molding Company Seating device with storage

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD804231S1 (en) * 2016-10-11 2017-12-05 Harvest-Excel International Pte. Ltd. Seatback
US11224292B2 (en) * 2016-12-28 2022-01-18 Jsp Corporation Seat core material
US11052800B2 (en) * 2017-02-17 2021-07-06 Jsp Corporation Seat core material
EP3400838A1 (de) * 2017-05-08 2018-11-14 Sedus Stoll AG Verbindungsanordnung für eine rückenlehne, büro- oder konferenzsitzmöbel und verfahren zur herstellung einer verbindungsanordnung für eine rückenlehne
US20220386777A1 (en) * 2021-06-04 2022-12-08 Pro-Cord S.P.A. Chair with a flexible backrest
US11937707B2 (en) * 2021-06-04 2024-03-26 Pro-Cord S.P.A. Chair with a flexible backrest

Also Published As

Publication number Publication date
EP3058848A1 (en) 2016-08-24
CA2920268A1 (en) 2016-08-17
ITUB20150149A1 (it) 2016-08-17

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Legal Events

Date Code Title Description
AS Assignment

Owner name: PRO-CORD S.P.A., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PIRETTI, ALESSANDRO;REEL/FRAME:037724/0628

Effective date: 20160129

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO PAY ISSUE FEE