WO2012115700A2 - Chaise ergonomique - Google Patents

Chaise ergonomique Download PDF

Info

Publication number
WO2012115700A2
WO2012115700A2 PCT/US2011/064736 US2011064736W WO2012115700A2 WO 2012115700 A2 WO2012115700 A2 WO 2012115700A2 US 2011064736 W US2011064736 W US 2011064736W WO 2012115700 A2 WO2012115700 A2 WO 2012115700A2
Authority
WO
WIPO (PCT)
Prior art keywords
seat
frame
ergonomic chair
curved
attaching
Prior art date
Application number
PCT/US2011/064736
Other languages
English (en)
Other versions
WO2012115700A3 (fr
Inventor
Steven R. Knight
Simon Liao
Original Assignee
Crown Seating Llc
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 Crown Seating Llc filed Critical Crown Seating Llc
Priority to AU2011360157A priority Critical patent/AU2011360157A1/en
Priority to CA2820611A priority patent/CA2820611A1/fr
Priority to CN201190000989.6U priority patent/CN203597641U/zh
Publication of WO2012115700A2 publication Critical patent/WO2012115700A2/fr
Publication of WO2012115700A3 publication Critical patent/WO2012115700A3/fr

Links

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
    • A47C7/02—Seat parts
    • 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
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A47C31/023—Upholstery attaching means connecting upholstery to frames, e.g. by hooks, clips, snap fasteners, clamping means or the like
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/10—Loose or removable furniture covers
    • A47C31/11—Loose or removable furniture covers for chairs
    • 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
    • A47C7/029—Seat parts of non-adjustable shape adapted to a user contour or ergonomic seating positions

Definitions

  • One aspect of a chair according to the present disclosure is to provide a chair that allows for the comfort of the medical, dental and laboratory personnel.
  • the convex shape of the seat frame when combined with the flexible mesh fabric, allows the weight from the user's hip bones and upper thigh bones, and corresponding seat surface deflection, to roll in a clockwise manner instead of sliding forward.
  • This "rolling" of the weight and/or pressure is a result of the deflection of the mesh as the user moves from an upright, resting position forward into a declined, working position. Deflecting the pressure in this manner significantly lessens the pressure on the hip bones, the tail bone and under the thighs.
  • a chair with a mesh seat and back provides good air circulation for a user.
  • Another aspect of a chair according to the present application is to provide the necessary ease of sanitation for users in a medical, dental or laboratory environment.
  • Disposable, breathable covers are placed over the mesh surfaces in use to provide sanitizing between uses.
  • FIG. 1 is a front perspective view of an ergonomic chair according to the present disclosure.
  • FIG. 2 is a front elevation view FIG. 1.
  • FIG. 3 is a rear elevation view of FIG. 1.
  • FIG. 4 is a left side elevation view of FIG. 1.
  • FIG. 5 is a right side elevation view of FIG. 1.
  • FIG. 6 is a top plan view of FIG. 1.
  • FIG. 7 is a bottom plan view of FIG. 1.
  • FIG. 8 is a top plan view of the inner and outer frames of the seat of chair of FIG. 1 with the mesh removed.
  • FIG. 9 is a sectional view of FIG. 8 along line 9-9.
  • FIG. 10 is a sectional view of FIG. 8 along line 10-10.
  • FIG. 11 is an enlarged view of a portion of FIG. 8.
  • FIG. 12 is a top plan view of the outer frame of FIG. 8.
  • FIG. 13 is an enlarged view of a portion of FIG. 12.
  • FIG. 14 is a bottom plan view of a cover.
  • FIG. 15 is a top perspective view of the chair of FIG. 1 with the cover of FIG. 14.
  • a chair 100 has a back 101 and a seat 102 on chair base 104.
  • Back 101 is comprised of a rigid frame 107 and a mesh material 108.
  • Frame 107 is curved.
  • Mesh material 108 is stretched across frame 107 with enough tension to provide back support for a user.
  • back 101 is convex and rests against a user's spine.
  • back 101 can be adjusted to pivot forward and backward as the user adjusts his or her position in the chair.
  • back 101 remains in contact with a user's back as he or she leans forward. This embodiment provides a user with continuous back support as he or she moves forward.
  • lever 110 would be used to adjust the forward and backward pivoting motion of back 101.
  • a knob can be included to adjust the height of back 101.
  • knob 111 would be used to adjust the height of back 101.
  • Seat 102 is mounted on a seat plate 106.
  • Seat plate 106 pivots forward and backward.
  • seat plate 106 causes seat 102 to pivot forward and backward as a user moves his or her weight forward and backward. This pivoting motion promotes proper body alignment.
  • a traditional seat, without seat plate 106, can rotate approximately 6° forward and 6° backward.
  • the addition of seat plate 106 allows seat 102 to rotate 19° forward and 8° backward.
  • Seat plate 106 allows for 13° more travel, resulting in a 19° forward rotation. As a result of seat plate 106, the front edge of seat 102 is lower than a standard chair by approximately 13°.
  • Seat 102 is comprised of a rigid frame 109.
  • Rigid frame 109 has left and right sides 109a, 109b and front and back sides 109c, 109d.
  • the shape of the rigid frame 109 as seen from the right and left sides is a flattened arch.
  • the arch has a front curve 113 and a back curve 114 that meet at high point 115.
  • front curve 113 has a continuous slope.
  • back curve 114 has a shallower slope than front curve 113.
  • seat 102 may have adjustable height.
  • lever 112 can be used to adjust the height of seat 102.
  • Wheels 105 are optional.
  • Chair 100 may also include armrests (not shown).
  • mesh material 108 is stretched over frame 109.
  • Mesh material 108 is tensioned such that the mesh material 108 fully supports a user as he or she moves back and forth.
  • the mesh material 108 rolls with a user as he or she moves, providing improved support without creating pressure points along the legs and/or seat of the user.
  • the mesh material 108 on seat 102 allows for air circulation around the legs and seat of a user. This is important for keeping the user comfortable over long periods.
  • Rigid frame 109 is comprised of inner frame 122 and outer frame 123.
  • Outer frame 123 includes ridge 124. Ribs 125 are located inside ridge 124. Ribs 125 contribute to the structural integrity of outer frame 123.
  • Outer frame 123 is made of a very hard glass-reinforced plastic.
  • Inner frame 122 is made of more flexible plastic, which allows inner frame 122 to flex to tension, or stretch, the mesh as the two matching frames are affixed to each other.
  • mesh material 108 is stretched across inner frame 122 and stapled into the frame just inside recess 127 of inner frame 122. In the depicted embodiment, steel staple wire is used to attach the mesh material 108 to the inner frame 122.
  • outer frame 123 and inner frame 122 are formed from of nylon reinforced with fiberglass, available from Nytex Composites Co., Ltd., No.6, Ln, 468, Sec.4, Changsui Rd., Peitouhsiang, Changhwa County, Taiwan.
  • the material utilizes virgin resin granules, which provide stable quality assurance.
  • the outer frame 123 and inner frame 122 are also fully recyclable.
  • the flexible plastic that makes up the inner shell contains less glass fiber reinforcement which in turn allows the inner frame to be more flexible.
  • outer frame 123 comprises Nylon 6 + 22.5% glass fiber.
  • inner frame 122 comprises Nylon 6 + 14% glass fiber.
  • any material having similar strength could be used.
  • inner frame 122 is then bolted into outer frame 123.
  • Jigs are used to extend the inner frame 122 by approximately twenty percent for attachment to outer frame 123.
  • Bolts 126 secure inner frame 122 to outer frame 123.
  • the primary purpose of the jigs is to push the outer frame 123 down onto the inner frame 122 so the frames can be affixed to one another. As outer frame 123 is pushed down, inner frame 122 flexes outward to meet outer frame 123, and in doing so, tensions mesh material 108.
  • cover 103 is made from non- woven material, such as polypropylene. While polypropylene is exemplary, any non- woven material having similar properties could be used.
  • Cover 103 must be made from a breathable material to allow the user to remain comfortable. Cover 103 must be made from a material that will prevent a majority of any fluids from passing through the cover. Cover 103 must be made of material that is low cost enough be used a disposable cover. Alternatively, cover 103 could be made of a washable material that could be sanitized and re-used.
  • Figure 13 is a top perspective view of the chair 100 with cover 103 over both the seat 102 and the back 101.
  • the covers 103 can be a generic size that can fit either the seat 102 or the back 101, or custom shaped covers can be made for each seat 102 and back 101.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Accommodation For Nursing Or Treatment Tables (AREA)

Abstract

L'invention concerne une chaise ergonomique. La forme convexe de la structure de siège, lorsqu'elle est combinée à un tissu composé d'une maille flexible, permet que le poids de l'utilisateur roule dans le sens des aiguilles d'une montre au lieu de s'incliner vers l'avant. Le mouvement de roulement selon l'invention est le résultat de la déviation de la maille lorsque l'utilisateur passe d'une position de repos verticale à une position de travail inclinée. Cette déviation de la pression permet de réduire considérablement la pression sur les os de la hanche, sur l'os coxal et au-dessous des cuisses. Le siège et le dossier composés de maille offrent à l'utilisateur une bonne circulation de l'air. L'invention concerne également des revêtements aérés jetables qui peuvent être placés sur les surfaces composées de maille afin de permettre leur protection et leur nettoyage entre les utilisations.
PCT/US2011/064736 2011-02-23 2011-12-13 Chaise ergonomique WO2012115700A2 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU2011360157A AU2011360157A1 (en) 2011-02-23 2011-12-13 Ergonomic chair
CA2820611A CA2820611A1 (fr) 2011-02-23 2011-12-13 Chaise ergonomique
CN201190000989.6U CN203597641U (zh) 2011-02-23 2011-12-13 人体工程学座椅

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US201161446023P 2011-02-23 2011-02-23
US61/446,023 2011-02-23
US201161446444P 2011-02-24 2011-02-24
US61/446,444 2011-02-24
US201161499081P 2011-06-20 2011-06-20
US61/499,081 2011-06-20

Publications (2)

Publication Number Publication Date
WO2012115700A2 true WO2012115700A2 (fr) 2012-08-30
WO2012115700A3 WO2012115700A3 (fr) 2012-11-15

Family

ID=46721386

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2011/064736 WO2012115700A2 (fr) 2011-02-23 2011-12-13 Chaise ergonomique

Country Status (4)

Country Link
CN (1) CN203597641U (fr)
AU (1) AU2011360157A1 (fr)
CA (1) CA2820611A1 (fr)
WO (1) WO2012115700A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10383448B1 (en) 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP1660105S (fr) * 2019-07-11 2020-05-25

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200254271Y1 (ko) * 2001-07-30 2001-11-26 박래웅 사무실용 의자
US20020190552A1 (en) * 2001-06-15 2002-12-19 Koepke Marcus C. Lumbar support for a chair
US20040155503A1 (en) * 1992-06-15 2004-08-12 Herman Miller, Inc. Chair with a linkage assembly
US20090001790A1 (en) * 2006-09-07 2009-01-01 Benjamin Jacob Williams Lounge Chair Cover

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040155503A1 (en) * 1992-06-15 2004-08-12 Herman Miller, Inc. Chair with a linkage assembly
US20020190552A1 (en) * 2001-06-15 2002-12-19 Koepke Marcus C. Lumbar support for a chair
KR200254271Y1 (ko) * 2001-07-30 2001-11-26 박래웅 사무실용 의자
US20090001790A1 (en) * 2006-09-07 2009-01-01 Benjamin Jacob Williams Lounge Chair Cover

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10383448B1 (en) 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat

Also Published As

Publication number Publication date
CA2820611A1 (fr) 2012-08-30
WO2012115700A3 (fr) 2012-11-15
CN203597641U (zh) 2014-05-21
AU2011360157A1 (en) 2013-06-20

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