WO2017183635A1 - Dossier de chaise - Google Patents

Dossier de chaise Download PDF

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Publication number
WO2017183635A1
WO2017183635A1 PCT/JP2017/015597 JP2017015597W WO2017183635A1 WO 2017183635 A1 WO2017183635 A1 WO 2017183635A1 JP 2017015597 W JP2017015597 W JP 2017015597W WO 2017183635 A1 WO2017183635 A1 WO 2017183635A1
Authority
WO
WIPO (PCT)
Prior art keywords
support
support member
waist
backrest
pair
Prior art date
Application number
PCT/JP2017/015597
Other languages
English (en)
Japanese (ja)
Inventor
晶一 井澤
Original Assignee
株式会社岡村製作所
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
Priority claimed from JP2016083993A external-priority patent/JP2017192520A/ja
Priority claimed from JP2016083992A external-priority patent/JP2017192519A/ja
Application filed by 株式会社岡村製作所 filed Critical 株式会社岡村製作所
Publication of WO2017183635A1 publication Critical patent/WO2017183635A1/fr

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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

Definitions

  • the present invention relates to a backrest of a chair to which a lumbar support member is attached.
  • a backrest of a chair to which a waist support member is attached there is one in which a support portion is extended upward from a lower portion of the chair, and a back frame and a waist support member are attached to the support portion.
  • a support portion is extended in the vertical direction at the center portion of the backrest, and a waist support member is supported by the support portion via the center portion (for example, Patent Document 1). reference).
  • the present invention has been made in view of the above, and even when the seated person makes a load on the backrest or moves to twist the back, the waist support member is preferably brought into contact with the waist. It aims to provide a backrest for a chair that can be made to be.
  • the backrest of the chair according to the present invention is a back frame, a face material provided so as to cover the back frame, and a rear side of the face material.
  • the back frame includes a pair of side frame portions having flexibility.
  • a lower frame portion that connects the lower end portions of the pair of side frame portions, and is connected to the leg portion via a lower portion of the back frame, and the support portion is the lower frame And a portion extending upward from a portion corresponding to the left and right ends of the waist support member, and having a portion for supporting the left and right ends of the waist support member.
  • the support portion has a pair of support arms extending upward from a portion that secures a gap between each other in the lower frame portion, and the waist portion
  • the support member may support one of the left and right ends on one side of the support arm and support the other of the left and right ends on the other side of the support arm.
  • the waist support member is disposed so as to be movable up and down while securing an opening that exposes the rear surface of the waist support member to the outside, and the waist support member You may provide an operation part in the site
  • the support part has a support arm connecting part that connects between upper end parts of the pair of support arms, and the waist support member includes the lower frame part, You may make it support the said support part in the state which the said operation part faces in the opening enclosed by a pair of support arm and the said support arm connection part.
  • the operation part may be provided so as to protrude rearward from the rear surface of the support part from the opening.
  • the lower frame portion of the back frame extends upward from the portions corresponding to both ends of the waist support member, and the support portion having the portions that respectively support the left and right ends of the waist support member is provided. And it is made to connect with a leg part via the lower part of a back frame. Therefore, the position of the lower frame portion does not change greatly even when the seated person puts a load on the backrest or the seated person moves to twist his back.
  • the position of the support member changes relatively, and the waist support member can be suitably brought into contact with the waist.
  • FIG. 1 is a perspective view of a chair according to an embodiment of the present invention.
  • FIG. 2 is a side view of the chair shown in FIG.
  • FIG. 3 is a cross-sectional view of the chair shown in FIG.
  • FIG. 4 is an enlarged view of a main part of the chair shown in FIG.
  • FIG. 5 is an enlarged view of a main part of the chair shown in FIG.
  • FIG. 6 is a partial side view for explaining the operation of the chair shown in FIG.
  • FIG. 7 is a rear view for explaining the operation of the chair shown in FIG.
  • FIG. 1 shows a chair provided with a backrest, which is an embodiment of the present invention.
  • the chair 10 illustrated here is applied in a room such as an office, and includes a leg portion 5.
  • the leg 5 includes a leg 3 and a pedestal 4.
  • the leg 3 extends radially from the circumferential surface of the base 2 that forms a cylindrical shape along the vertical direction, and includes the casters 1 at the respective distal ends.
  • the pedestal 4 has a cylindrical shape inserted through the center hole of the base 2 and supports the back frame support 6 at the upper end thereof.
  • the back frame support part 6 comprises the seat part of a chair by providing the cushion 8 on the upper surface.
  • a pair of left and right armrests 7 are attached to the lower surfaces of both sides of the back frame support portion 6. The armrests 7 and 7 protrude upward from the lower surface of the back frame support 6 and then protrude upward.
  • a backrest 20 is connected to the above-described leg portion 5 via the back frame support portion 6.
  • the backrest 20 includes a back frame 21, a face material 22 provided so as to cover the back frame 21, and a waist support member provided at a position on the rear side of the face material 22. 23 and a support portion 24 that supports the waist support member 23.
  • the back frame 21 includes a pair of left and right side frame portions 31, 32, an upper frame portion 33, a lower frame portion 34, and a connecting portion 35, and is integrally formed by a flexible synthetic resin. Molded.
  • the side frame portions 31 and 32 are slightly lower in the middle in the vertical direction, and are bent so that the portion corresponding to the height near the waist of the seated person protrudes forward.
  • the upper frame portion 33 connects the upper end portions of the pair of side frame portions 31, 32, and the lower frame portion 34 connects the lower end portions of the pair of side frame portions 31, 32.
  • the connecting portion 35 extends downward from the lower portion of the lower frame portion 34 and then curves forward, and extends forward on the lower surface of the back frame support portion 6.
  • the backrest 20 is connected to the back frame support portion 6 via the front portion of the connection portion 35.
  • the face material 22 is a sheet-like member, and is provided so as to cover the inside of the frame surrounded by the pair of side frame portions 31 and 32, the upper frame portion 33, and the lower frame portion 34.
  • the waist support member 23 includes a support body 41 and a pair of sliding arms 42 and 43 that protrude rearward from the left and right ends of the support body 41. It is molded from a flexible synthetic resin.
  • the support part main body 41 is a part that comes into contact with the waist of the seated person, and has a curved shape along the waist of the seated person.
  • a plurality of slits 44, 44... Are formed in the support body 41 along the left-right direction.
  • the width of the support body 41 is approximately the same as the width of the waist of the seated person, and is smaller than the distance between the pair of side frame portions 31 and 32 in the back frame 21.
  • An operation unit 45 is provided below the support body 41.
  • the operation unit 45 is formed by extending the lower edge portion of the support body 41 toward the rear, and is formed over the entire left and right width of the support body 41. The extended end portion of the operation portion 45 projects rearward from the rear surface of the support portion 24.
  • the sliding arms 42 and 43 have a protrusion 46 and a support 47.
  • the protrusion 46 and the support 47 are provided in the vicinity of the left and right ends of the operation unit 45 and protrude inward so as to face each other.
  • the support part 24 has a pair of support arms 51 and 52 and a support arm connection part 53.
  • the pair of support arms 51, 52 protrudes upward from a portion corresponding to both ends of the waist support member 23 on the upper surface of the lower frame portion 34, and projects upward. It is provided so as to have a width that is equal to or greater than the width.
  • the pair of support arms 51 and 52 have engaging portions 54 and 54 arranged vertically.
  • the engaging portions 54, 54 are engaged with the protrusions 46 and the support portions 47 of the sliding arms 42, 43, and support the waist support member 23 through the sliding arms 42, 43 so as to be movable up and down. Yes.
  • a plurality of concave portions 56 are formed in each of the engaging portions 54 and 54.
  • the recesses 56 are configured so that the protrusions 46 of the sliding arms 42 and 43 can be fitted.
  • the waist support member 23 can be positioned in the vertical direction by fitting the projection 46 into any one of the recesses 56 provided in the engagement portions 54, 54.
  • the support arm connection part 53 is a part that connects the upper ends of the pair of support arms 51 and 52.
  • An opening 58 is formed in a portion surrounded by the support arm connecting portion 53, the pair of support arms 51 and 52, and the lower frame portion 34.
  • the back surface of the waist support member 23 is exposed to the outside through the opening 58, and the operation portion 45 of the support portion main body 41 can be operated.
  • the waist support member 23 is supported by the support portion 24 with the operation portion 45 facing the opening 58.
  • the operation unit 45 is provided at a portion facing the opening 58 in the lower rear surface of the waist support member 23.
  • the back frame 21 is changed to the side frame portion 31 as shown by a two-dot chain line in FIG. , 32 is bent backward using the lower part of the fulcrum as a fulcrum.
  • the position of the lower frame portion 34 provided with the connecting portion 35 hardly changes, and the support portion 24 provided on the lower frame portion 34 does not follow the bending of the side frame portions 31 and 32. . Therefore, the waist support member 23 supported by the support portion 24 is not displaced from the initial position with respect to the side frame portions 31 and 32 to bend, and the waist support member 23 is preferably brought into contact with the waist of the seated person. Will be able to.
  • the waist support member 23 is supported by the pair of left and right support arms 51 and 52, so that the movement of the waist support member 23 is restricted. As a result, the waist support member 23 can be suitably brought into contact with the waist of the seated person.
  • the pair of left and right support arms 51 and 52 are spaced apart from each other, and the support body 41 is provided with a plurality of slits 44, 44. When contacting, the waist support member 23 bends in accordance with the shape of the waist between the pair of support arms 51 and 52, so that the waist of the seated person can be softly supported.
  • the waist support member 23 can be moved up and down by moving the operating portion 45 and the sliding arms 42 and 43 slide on the engaging portions 54 and 54. Therefore, it is possible to adjust.
  • the operation unit 45 is the lower rear portion of the backrest 20 and is disposed between the support arms 51 and 52, so that as shown by the solid line in FIG. The operator can operate the operation unit 45 with a comfortable posture. That is, in the case of the chair 10 provided in the side frame portions 31 and 32 of the back frame 21 when the operation unit 45 is operated while the seated person is seated, as shown by a two-dot chain line in FIG.
  • the operation part 45 is formed so that a lower edge part may be extended over the left-right full width of the support part main body 41, and it may protrude from the support part 24 toward back, It is possible to prevent dust from accumulating in a lower region of the operation unit 45, that is, in an upper surface of the lower frame portion 34 and a gap portion between the lower frame portion 34 and the face material 22.
  • the armrests 7 and 7 are connected only to the back frame support 6, but the armrests 7 and 7 may be connected only to the backrest 20.
  • the operation portion 45 is formed so as to protrude rearward, but it is not necessarily required to protrude.
  • the operation part 45 is formed over the left-right full width of the waist
  • the support portion 24 is formed to have the same width as the waist support member 23, but may be configured to have a width greater than that of the waist support member 23.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

L'invention concerne un dossier (20) qui est relié à une partie pied (5) d'une chaise (10), et qui comprend un cadre arrière (21), un matériau de face (22) disposé de manière à recouvrir le cadre arrière (21), un élément de support lombaire (23) disposé à un endroit situé à l'arrière du matériau de face (22), et une partie de support (24) pour soutenir l'élément de support lombaire (23). Le cadre arrière (21) a une paire de sections de cadre latérales souples (31, 32) et une section de cadre inférieure (34) qui se connecte entre les extrémités inférieures de la paire de sections de cadre latérales (31, 32), et qui est reliée à la partie pied (5) par l'intermédiaire d'une partie inférieure du cadre arrière (21); et la partie de support (24) comporte une paire de bras de support (51, 52) s'étendant vers le haut à partir des parties correspondant aux extrémités droite et gauche de l'élément de support lombaire (23) dans la section de cadre inférieure (34) de manière à soutenir les extrémités droite et gauche de l'élément de support lombaire (23).
PCT/JP2017/015597 2016-04-19 2017-04-18 Dossier de chaise WO2017183635A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2016-083993 2016-04-19
JP2016-083992 2016-04-19
JP2016083993A JP2017192520A (ja) 2016-04-19 2016-04-19 椅子の背凭れ
JP2016083992A JP2017192519A (ja) 2016-04-19 2016-04-19 椅子の背凭れ

Publications (1)

Publication Number Publication Date
WO2017183635A1 true WO2017183635A1 (fr) 2017-10-26

Family

ID=60116104

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2017/015597 WO2017183635A1 (fr) 2016-04-19 2017-04-18 Dossier de chaise

Country Status (1)

Country Link
WO (1) WO2017183635A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI711410B (zh) * 2020-02-05 2020-12-01 宣禹實業股份有限公司 椅背框扭動結構

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704689A (en) * 1995-02-15 1998-01-06 Kim; Moung Sook Chair having separable back
JP2002119375A (ja) * 2000-10-16 2002-04-23 Kokuyo Co Ltd 椅 子
JP2004049656A (ja) * 2002-07-22 2004-02-19 Okamura Corp 椅子の背凭れ装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5704689A (en) * 1995-02-15 1998-01-06 Kim; Moung Sook Chair having separable back
JP2002119375A (ja) * 2000-10-16 2002-04-23 Kokuyo Co Ltd 椅 子
JP2004049656A (ja) * 2002-07-22 2004-02-19 Okamura Corp 椅子の背凭れ装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI711410B (zh) * 2020-02-05 2020-12-01 宣禹實業股份有限公司 椅背框扭動結構

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