WO2011049072A1 - Backrest for chair - Google Patents
Backrest for chair Download PDFInfo
- Publication number
- WO2011049072A1 WO2011049072A1 PCT/JP2010/068341 JP2010068341W WO2011049072A1 WO 2011049072 A1 WO2011049072 A1 WO 2011049072A1 JP 2010068341 W JP2010068341 W JP 2010068341W WO 2011049072 A1 WO2011049072 A1 WO 2011049072A1
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- WO
- WIPO (PCT)
- Prior art keywords
- frame
- backrest
- friction member
- upholstery material
- chair
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C5/00—Chairs of special materials
- A47C5/04—Metal chairs, e.g. tubular
- A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular chairs
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- 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
- A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs
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- 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
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- 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 formed by covering a back frame with a bag-like upholstery material.
- Examples of backrests of this type of chair include those described in Patent Documents 1 and 2.
- the lower side of the upholstery material will slide up, etc. Looseness or wrinkles may occur on the upholstery.
- the lower side of the tension member will be The front part of the upholstery that supports the vicinity of the waist of the occupant in the upholstery will bend backwards excessively, so the lumbar support effect cannot be exerted, and the lumbar of the seat is comfortably supported I can't.
- the above-mentioned problems are solved as follows.
- (1) In a backrest of a chair formed by covering and stretching a bag-like tension material on a back frame having a pair of left and right side frames facing in the vertical direction, in the vicinity of the waist of a seated person in the tension material
- the sliding resistance of the contact portion between the upholstery and the side frame is increased on at least one of the inner surfaces of both side portions on the lower side that support the outer surface and the outer surfaces of the left and right side frames that contact the portion.
- a high friction member is provided.
- both sides of the lower part of the tension material are less likely to slide with respect to the side frame, so that the lower part of the tension material is prevented from rising, and slack and wrinkles are prevented from occurring in the tension material.
- both sides of the lower part of the upholstery are less likely to go around the front side of the back frame, so the front part of the lower part of the upholstery that supports the vicinity of the waist of the seated person Excessive backward bending is prevented, and the vicinity of the waist of the seated person can be comfortably supported by the lumbar support effect.
- the one side end of the high friction member is sewn so as to cover the sewn portion of the both ends of the upholstery material, whereby the both side ends of the upholstery material are reinforced, frayed, etc.
- the lower part of the upholstery material is in sliding contact with the side frame via a high friction member fixed to the inner surface of both side parts, it is possible to suppress wear on both side parts of the lower part of the upholstery material, The time for replacement is extended and costs are reduced.
- the high friction member is formed of any one of a polyurethane resin or a foam thereof, a urethane elastomer, and rubber.
- any material is preferable as a high-friction member, is easy to mold and highly versatile, and can be implemented relatively inexpensively.
- the present invention it is possible to prevent the occurrence of slack or the like due to the uplift of the upholstery material, and to prevent the front part of the lower part of the upholstery material from being excessively bent backward, thereby comfortably supporting the vicinity of the waist of the seated person. It is possible to provide a backrest of the chair that can be made.
- FIG. 1 is a side view of a chair in a standby state including an embodiment of the backrest of the present invention.
- FIG. 2 is a side view of the sitting state of the chair shown in FIG.
- FIG. 3 is a perspective view of the state before the tension material is fitted to the back frame as seen from the obliquely rear side of the backrest.
- FIG. 4 is an enlarged cross-sectional view taken along line IV-IV in FIG.
- FIG. 5 is an enlarged cross-sectional view taken along line VV in FIG.
- FIG. 6 is an enlarged view of a portion A in FIG.
- FIG. 7 is an enlarged view of a portion B in FIG. FIG.
- FIG. 8 is an enlarged cross-sectional view showing a modified example of the attachment form of the low friction member and the high friction member to the back frame.
- FIG. 9 is an enlarged cross-sectional view showing another modified example of the attachment form of the low friction member and the high friction member to the back frame.
- FIG.1 and FIG.2 is a side view of a chair provided with one embodiment of the backrest of the present invention, and this chair has a pedestal 2 standing upright at the center of a disk-shaped base 1, and this pedestal 2
- the lower structure 4 which fixed the support base 3 to the upper end of this is provided.
- the support base 3 has a shape that expands in a substantially triangular shape forward from the upper end of the pedestal 2 in plan view and side view.
- the front lower portion of the seat 5 is pivotally attached to the front end portion of the support base 3 with a base shaft 6 in the left-right direction, and the seat 5 is, as shown in FIG. Thus, it can rotate centering on the base shaft 6 to the use position which inclines horizontally or slightly rearwardly downward.
- a pair of left and right armrests 7 and 7 are integrally formed on the seat 5 at the rear portions on both sides of the seat 5.
- Each armrest 7 stands from both sides of the rear portion of the seat 5 and has a backrest pivot support portion 7a protruding from a curved surface 8 having a semicircular arc shape or a fan shape as viewed from the side centering on a support shaft 11 of the backrest 9 described later.
- an upward arc-shaped elbow rest 7b extending forward from the upper portion of the backrest pivot support portion 7a, and the overall shape is substantially a forward triangle in a side view converging toward the front upper direction. .
- the front and rear dimensions of the elbow rest 7b are set so that the front end of the elbow rest 7b is positioned forward of the vertical line S passing through the center of the base shaft 6 that is the pivotally mounted portion of the seat 5 in the standby position shown in FIG. Has been. Further, as shown in FIG. 2, when the seat 5 is in the use position, the front end portion of the elbow rest 7b is behind the vertical line S, that is, slightly behind the base shaft 6 on which the seat 5 is pivotally attached. It is supposed to be located at.
- the front end of the forward side piece 10 extending forward from the lower part of both sides of the backrest 9 is supported on the outer surface of the backrest pivot support portion 7a of the left and right armrests 7 and 7 slightly forward.
- the backrest 9 is pivotally attached to the shaft 11 so that the backrest 9 can rotate with respect to the seat 5 and the armrest 7 around the support shaft 11 between a standing position shown in FIG. ing.
- a portion of the lower part of the backrest 9 facing the rear surface of the backrest pivot portion 7a is an arcuate concave curved surface 12 that is substantially complementary to the curved surface 8 of the rear surface of the backrest pivot portion 7a. So that the backrest 9 can move around the support shaft 11.
- a gas spring or a compression spring that urges the backrest 9 in the standing direction is provided.
- One urging means 13 is provided.
- the second urging means 14 that can assist the seated person to stand by urging the seat 5 toward the standby position.
- the second urging means 14 includes, for example, a rubber torsion unit 15 whose axis is directed in the left-right direction, and a first that is linked to the rubber torsion unit 15 and is urged counterclockwise in a side view in FIG.
- a lower end portion is pivotally attached to the link 16 and the distal end portion of the first link 16 with a left and right axis
- an upper end portion is pivotally attached to a lower surface of an intermediate portion in the front and rear direction of the seat 5 with a left and right axis.
- a second link 17 facing diagonally upward.
- the backrest 9 is a pair of left and right side frames whose front and rear dimensions are gradually increased downward, with the front side piece 10 continuously provided at the lower end and facing upward and downward.
- the upper ends of 18 and 18 are connected by an upper frame 19 facing in the left-right direction
- the lower ends of both side frames 18 and 18 are connected by a lower frame 20 facing in the left-right direction
- the upper frame 19 and the lower frame are further connected.
- 20 includes a back frame 22 having a vertically rectangular frame shape, which is formed by connecting 20 intermediate portions in the left-right direction with an intermediate frame 21 facing the vertical direction located behind the both side frames 18, 18. Yes.
- the back frame 22 is integrally formed of a synthetic resin material having moderate elasticity. It is preferable to add strength fibers such as glass fibers and carbon fibers to the synthetic resin material to increase the strength.
- the lower portions of the side frames 18 and 18 and the lower portion of the intermediate frame 21 have an arcuate curved shape with the center of curvature positioned forward in a side view, and the upper frame 19 and the lower frame 20 are in a plan view.
- the curved shape is such that the intermediate portion is located behind the both side portions.
- the lower part of the backrest 9 is also separated rearward from the rear ends of the seat 5 and the armrest 7, so that when the backrest 9 rotates, it is prevented from interfering with the rear end of the seat 5 and the armrest 7, The range of rotation of the backrest 9 to the rear can be increased.
- the intermediate frame 21 is formed to be thinner than the other frame components in the back frame 22 so as to be more easily elastically deformed than the other portions. When a load is applied to the front surface portion of the tension member 26 described later, the intermediate frame 21 21 can be elastically deformed forward.
- extension frames 23, 23 are connected to the upper ends of the side frames 18, 18 so as to face upward and bend so that the intermediate portion is positioned forward of the upper and lower portions in a side view.
- a headrest frame 25 formed by connecting the upper ends of the extension frames 23 and 23 with a top frame 24 facing in the left-right direction is integrally provided.
- the back frame 22 and the headrest frame 25 are stretched with a stretchable bag-like tension material 26 having an opening at the lower end and lower portions on both sides from above.
- the upholstery material 26 is made of, for example, a synthetic fiber knitted in a mesh shape.
- the upholstery material 26 includes a headrest cover portion 27 that covers the headrest frame 25 and a backrest cover portion 28 that covers the back frame 22.
- the headrest cover 25 in the headrest frame 25 and the upholstery material 26 may be omitted.
- both sides of the upholstery material 26 that is, the outer surface of the side frames 18, 18 of the back frame 22 excluding the front side piece 10, and the extension frame of the headrest frame 25.
- Thin and flexible low friction members 29 and 29 having a small sliding resistance with respect to both frames 18 and 23 are attached to the inner surfaces of the portions contacting the outer surfaces of 23 and 23.
- the inner surface of both sides of the upholstery material 26 that supports the vicinity of the waist of the seated person that is, the inner surface of the upholstery material 26 that contacts the outer side surface of the lower part of the side frame 18 has a sliding resistance against the side frame 18.
- Large thin flexible high friction members 30, 30 are attached.
- the material of the low friction member 29 for example, polyamide resin (trade name nylon), fluorine resin (Teflon (registered trademark), trade name Daiflon), polyacetal and the like are preferable, and as the material of the high friction member 30, for example, Polyurethane resin or its foam, urethane elastomer, rubber and the like are preferable.
- the upholstery material 26 is located at a position where both side ends thereof are close to the inner surface on the front side of one of the left and right side frames 18 and the extension frame 23.
- the bag is formed in a bag shape by being folded inwardly and stitched together.
- the U-shaped portions of the front end portions of the low friction member 29 and the high friction member 30 are folded back. It is sewn so as to cover the folded portion. If it does in this way, the sewing part 26a of the both ends of the upholstery material 26 will be reinforced.
- the front end portions of the low friction member 29 and the high friction member 30 may be simply sewn simultaneously to the sewn portions 26 a at both end portions of the upholstery material 26 without being folded back into a U shape.
- the low friction member 29 and the high friction member 30 may be attached to the outer surface of the side frame 18 and the extension frame 23 or the inner surface of both sides of the upholstery material 26 with an adhesive or the like, in addition to the above-described sewing. It may be fixed directly. Further, as shown in FIG. 8, on the outer side surfaces of the side frame 18 and the extension frame 23, a concave groove 31 facing in the vertical direction is provided, and the inner surfaces of the low friction member 29 and the high friction member 30 are provided in the concave groove 31.
- the low-friction member 29 and the high-friction member 30 may be detachably attached to the outer side surfaces of the side frame 18 and the extension frame 23 by fitting the projecting portion 32 that protrudes upward and downward.
- the elastically deformable low friction member 29 and high friction member 30 may be detachably fitted on the outer side surfaces of the side frame 18 and the extension frame 23, as described above. Then, it is not necessary to provide the side groove 18 and the extension frame 23 with the concave groove 31 as shown in FIG.
- the low friction member 29 and the high friction member 30 may be a film formed on the outer surfaces of the side frame 18 and the extension frame 23 by coating or the like.
- the front portion 28a of the upholstery material 26 bends backward while extending as shown by a two-dot chain line in FIG.
- the rear surface portion 28b of the upholstery material 26 is pulled and extended, so that both side portions slightly turn to the front surface portion 28a side as indicated by arrows, and the amount of bending of the front surface portion 28a toward the rear increases.
- the low-friction members 29 attached to the inner surfaces of both side portions of the upholstery material 26 are in contact with the outer surface of the side frame 18 except for the lower portion and the outer surface of the extension frame 23. The sliding resistance of the part becomes small.
- the upper side portions excluding the lower portion of the upholstery material 26 smoothly wrap around the front side, so that the front side portion 28a of the upholstery material 26 that supports the back and the head of the seated person is placed on the back and the head. It is possible to bend backward effectively to fit, and the back and head are flexibly and comfortably supported. Further, it is possible to prevent an unpleasant sliding sound from being generated when both side portions of the upholstery material 26 are turned to the front surface portion 28a side. Further, since the upholstery material 26 slides with respect to the side frame 18 via the low friction members 29 fixed to the inner surfaces of the both side portions, it is possible to suppress wear of the both side portions of the upholstery material 26 and to change the upholstery. Time is extended and costs are reduced.
- both lower side portions of the upholstery material 26 are prevented or suppressed from turning around to the front side of the back frame 22, the lower portion of the front surface portion 28a of the upholstery material 26, that is, a portion that supports the vicinity of the waist of the seated person. Tension is secured and it will not bend backwards excessively. As a result, the lumbar support effect is exhibited, and the waist of the seated person is comfortably supported, so that the sitting comfort is improved.
- the both sides of the upholstery material 26 slide with respect to the low friction member 29 and the high friction member 30 attached to the side frame 18. The sliding resistance with the side frame 18 becomes small or large, and the same effect as described above can be obtained.
- the present invention is not limited to the above-described embodiment, and can be implemented in various modified forms.
- the low friction member 29 is provided on the inner surfaces of the upper side portions except for the lower portion of the upholstery material 26.
- the low friction member 29 is omitted and only the lower high friction member 30 is provided. There is also.
- the aspect provided with the high friction member 30 in the inner surface of the both sides of the upholstery material 26 and the aspect provided in the outer side surface of the side part frame 18 were illustrated, the outer side surface of the side part frame 18 was illustrated.
- the high friction member 30 may be provided on both the inner surfaces of both sides of the upholstery material 26 and the high friction members 29 may be brought into contact with each other to increase the sliding resistance.
- the present invention can be applied to a backrest of a general chair in which the seat 5 does not tilt up and down.
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Abstract
Description
このような張り材を、所定の緊張状態をもって背フレームに被嵌して張設すると、座者が背凭れに凭れ掛けた際に、背フレームの後側に位置する張り材の後面部が引っ張られて前方に回り込むことにより、背フレームの前側に位置する張り材の前面部が後方に適度に撓むことができる。
この際に、張り材の下部の両側部と、背フレームにおける左右の側部フレームの外側面との接触部の摺動抵抗が小さいと、張り材の下部の両側部がずり上がるなどして、張り材に弛みや皺が生じることがある。
また、座者の腰部付近を支持する張り材の下部の両側部と、側部フレームの外側面との接触部の摺動抵抗が小さいと、張り材の下部の両側部が、背フレームの前面側に簡単に回り込み、張り材における座者の腰部付近を支持する前面部が後方に過度に撓むようになるため、ランバーサポート効果を発揮することができず、座者の腰部付近を快適に支持することができない。 As the bag-like upholstery material in the backrest described in
When such a tension member is fitted and stretched on the back frame with a predetermined tension state, when the seated person leans on the backrest, the rear surface portion of the tension material located on the rear side of the back frame is pulled. Then, the front part of the upholstery material positioned on the front side of the back frame can be bent to the rear appropriately by turning forward.
At this time, if the sliding resistance of the contact portion between the lower side of the upholstery material and the outer surface of the left and right side frames in the back frame is small, the lower side of the upholstery material will slide up, etc. Looseness or wrinkles may occur on the upholstery.
In addition, if the sliding resistance between the lower side of the tension member supporting the vicinity of the waist of the seat and the outer surface of the side frame is small, the lower side of the tension member will be The front part of the upholstery that supports the vicinity of the waist of the occupant in the upholstery will bend backwards excessively, so the lumbar support effect cannot be exerted, and the lumbar of the seat is comfortably supported I can't.
(1)上下方向を向く左右1対の側部フレームを有する背フレームに、袋状の張り材を被嵌して張設してなる椅子の背凭れにおいて、前記張り材における座者の腰部付近を支持する下部側の両側部内面と、その部分に接触する前記左右の側部フレームの外側面との少なくともいずれか一方に、張り材と側部フレームとの接触部の摺動抵抗を大としうる高摩擦部材を設ける。 According to the present invention, the above-mentioned problems are solved as follows.
(1) In a backrest of a chair formed by covering and stretching a bag-like tension material on a back frame having a pair of left and right side frames facing in the vertical direction, in the vicinity of the waist of a seated person in the tension material The sliding resistance of the contact portion between the upholstery and the side frame is increased on at least one of the inner surfaces of both side portions on the lower side that support the outer surface and the outer surfaces of the left and right side frames that contact the portion. A high friction member is provided.
また、座者が背凭れに凭れ掛けた際に、張り材の下部の両側部が、背フレームの前面側に回り込みにくくなるため、座者の腰部付近を支持する張り材の下部の前面部が過度に後方に撓むのが防止され、ランバーサポート効果により、座者の腰部付近を快適に支持することができる。 With such a configuration, both sides of the lower part of the tension material are less likely to slide with respect to the side frame, so that the lower part of the tension material is prevented from rising, and slack and wrinkles are prevented from occurring in the tension material. .
In addition, when the seated person leans on his back, both sides of the lower part of the upholstery are less likely to go around the front side of the back frame, so the front part of the lower part of the upholstery that supports the vicinity of the waist of the seated person Excessive backward bending is prevented, and the vicinity of the waist of the seated person can be comfortably supported by the lumbar support effect.
また、張り材の下部は、その両側部内面に固定した高摩擦部材を介して、側部フレームに摺接しているので、張り材の下部の両側部が摩耗するのが抑えられ、張り材を張り替える時期が延びて、コストが削減される。 With such a configuration, the one side end of the high friction member is sewn so as to cover the sewn portion of the both ends of the upholstery material, whereby the both side ends of the upholstery material are reinforced, frayed, etc. There is no fear of the occurrence.
Also, since the lower part of the upholstery material is in sliding contact with the side frame via a high friction member fixed to the inner surface of both side parts, it is possible to suppress wear on both side parts of the lower part of the upholstery material, The time for replacement is extended and costs are reduced.
図1及び図2は、本発明の背凭れの一実施形態を備える椅子の側面図であり、この椅子は、円板状のベース1の中央に脚柱2を立設し、この脚柱2の上端に支基3を固着した下部構成体4を備えている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG.1 and FIG.2 is a side view of a chair provided with one embodiment of the backrest of the present invention, and this chair has a
各肘掛け7は、座5の後部両側から起立し、かつ後面が、後記する背凭れ9の支軸11を中心とする側面視半円弧状または扇形の湾曲面8に突出する背凭れ枢支部7aと、この背凭れ枢支部7aの上部より前向きに延出する上向弧状の肘当て部7bとからなり、全体の形状は、前上方に向かって収束する側面視ほぼ前向三角形をなしている。 A pair of left and
Each
また、図2に示すように、座5が使用位置にあるときには、肘当て部7bの前端部が、上記垂直線Sよりも後方、すなわち座5が枢着されている基軸6よりも若干後方に位置するようにしてある。 The front and rear dimensions of the
Further, as shown in FIG. 2, when the
背凭れ9における後記する下部フレーム20の左右方向の中央部と、支基3の前端部上面との間には、背凭れ9を起立方向に付勢するガススプリング、または圧縮ばね等からなる第1の付勢手段13が設けられている。 A portion of the lower part of the
Between the center part in the left-right direction of the
この第2の付勢手段14は、例えば軸線が左右方向を向くゴムトーションユニット15と、このゴムトーションユニット15に連係され、図1において側面視反時計方向に付勢された後方を向く第1リンク16と、この第1リンク16の先端部に左右方向の軸をもって下端部が枢着され、かつ上端部が、座5の前後方向の中間部の下面に、左右方向の軸をもって枢着された斜め後上方を向く第2リンク17とからなっている。 Further, in the
The
また、背凭れ9の下部も、座5および肘掛け7の後端より後方に離間することにより、背凭れ9が回動する際、座5および肘掛け7の後端と干渉するのが防止され、背凭れ9の後方への回動範囲を大とすることができる。 The lower portions of the side frames 18 and 18 and the lower portion of the
Further, the lower part of the
また、図8に示すように、側部フレーム18及び延長フレーム23の外側面に、上下方向を向く凹溝31を設け、この凹溝31に、低摩擦部材29と高摩擦部材30の内側面に突設した上下方向を向く凸部32を嵌合することにより、低摩擦部材29と高摩擦部材30を、側部フレーム18と延長フレーム23の外側面に着脱可能に取り付けてもよい。 The
Further, as shown in FIG. 8, on the outer side surfaces of the
なお、低摩擦部材29と高摩擦部材30は、側部フレーム18と延長フレーム23の外側面にコーティング等により形成した皮膜とすることもある。 Further, as shown in FIG. 9, the elastically deformable
The
また、張り材26の両側部が前面部28a側に回り込む際に、不快な摺動音を発するのを防止することができる。
さらに、張り材26は、その両側部内面に固定した低摩擦部材29を介して、側部フレーム18に対して摺動するので、張り材26の両側部が摩耗するのが抑えられ、その張り替え時期が延びて、コストが削減される。 As a result, the upper side portions excluding the lower portion of the
Further, it is possible to prevent an unpleasant sliding sound from being generated when both side portions of the
Further, since the
その結果、側部フレーム18の下部が前方に円弧状に湾曲していても、張り材26の両側部の下部が、ずり上がることはなく、張り材26の下部が弛んだり、皺が生じたりするのが防止される。
また、張り材26の下部両側部が、背フレーム22の前面側に回り込むのが防止または抑制されるので、張り材26の前面部28aの下部、すなわち、座者の腰部付近を支持する部分のテンションが確保され、過度に後方に撓むことがなくなる。これにより、ランバーサポート効果が発揮され、座者の腰部が快適に支持されるので、座り心地が向上する。
なお、図8及び図9に示す実施形態においては、側部フレーム18に取付けた低摩擦部材29と高摩擦部材30に対し、張り材26の両側部が摺動することにより、張り材26と側部フレーム18との摺動抵抗が、小または大となり、上記と同様の作用効果が得られる。 On the other hand, the
As a result, even if the lower portion of the
Further, since both lower side portions of the
In the embodiment shown in FIGS. 8 and 9, the both sides of the
例えば、上記実施形態では、張り材26における下部を除く上方の両側部内面に、低摩擦部材29を設けているが、この低摩擦部材29を省略し、下部の高摩擦部材30のみとすることもある。 The present invention is not limited to the above-described embodiment, and can be implemented in various modified forms.
For example, in the above-described embodiment, the
2 脚柱
3 支基
4 下部構成体
5 座
6 基軸
7 肘掛け
7a 背凭れ枢支部
7b 肘当て部
8 湾曲面
9 背凭れ
10 前向側片
11 支軸
12 凹曲面
13 第1の付勢手段
14 第2の付勢手段
15 ゴムトーションユニット
16 第1リンク
17 第2リンク
18 側部フレーム
19 上部フレーム
20 下部フレーム
21 中間フレーム
22 背フレーム
23 延長フレーム
24 頂部フレーム
25 ヘッドレストフレーム
26 張り材
26a 縫着部
27 ヘッドレスト覆い部
28 背凭れ覆い部
28a 前面部
28b 後面部
29 低摩擦部材
30 高摩擦部材
31 凹溝
S 垂直線 DESCRIPTION OF
Claims (3)
- 上下方向を向く左右1対の側部フレームを有する背フレームに、袋状の張り材を被嵌して張設してなる椅子の背凭れにおいて、
前記張り材における座者の腰部付近を支持する下部側の両側部内面と、その部分に接触する前記左右の側部フレームの外側面との少なくともいずれか一方に、張り材と側部フレームとの接触部の摺動抵抗を大としうる高摩擦部材を設けたことを特徴とする椅子の背凭れ。 In a backrest of a chair formed by covering and stretching a bag-like upholstery material on a back frame having a pair of left and right side frames facing in the vertical direction,
At least one of the inner surfaces of both sides on the lower side supporting the vicinity of the lumbar portion of the occupant in the upholstery material and the outer side surfaces of the left and right side frame in contact with the portion, the upholstery material and the side frame A backrest of a chair provided with a high friction member capable of increasing the sliding resistance of the contact portion. - 張り材を袋状に形成するべく、その両側端部を内方に折り重ねて縫着した縫着部に、高摩擦部材の一側端部を、前記縫着部を覆うようにして、縫着により固定してなる請求項1記載の椅子の背凭れ。 To form the upholstery material in a bag shape, sew the end of both sides of the high friction member on the sewn part that is folded inward and sewn, covering the sewn part. The backrest of the chair according to claim 1, which is fixed by wearing.
- 高摩擦部材を、ポリウレタン樹脂またはその発泡体、ウレタン系エラストマー、ゴムのいずれかにより形成してなる請求項1または2記載の椅子の背凭れ。 The chair backrest according to claim 1 or 2, wherein the high friction member is formed of any one of polyurethane resin or foam thereof, urethane elastomer and rubber.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/503,001 US20120212027A1 (en) | 2009-10-19 | 2010-10-19 | Backrest for chair |
CN2010800469546A CN102573571A (en) | 2009-10-19 | 2010-10-19 | Backrest for chair |
CA2778163A CA2778163A1 (en) | 2009-10-19 | 2010-10-19 | Backrest for chair |
EP10824921.0A EP2491821A4 (en) | 2009-10-19 | 2010-10-19 | Backrest for chair |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009240146A JP5606717B2 (en) | 2009-10-19 | 2009-10-19 | Chair back |
JP2009-240146 | 2009-10-19 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011049072A1 true WO2011049072A1 (en) | 2011-04-28 |
Family
ID=43900297
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2010/068341 WO2011049072A1 (en) | 2009-10-19 | 2010-10-19 | Backrest for chair |
Country Status (7)
Country | Link |
---|---|
US (1) | US20120212027A1 (en) |
EP (1) | EP2491821A4 (en) |
JP (1) | JP5606717B2 (en) |
KR (1) | KR20120098633A (en) |
CN (1) | CN102573571A (en) |
CA (1) | CA2778163A1 (en) |
WO (1) | WO2011049072A1 (en) |
Families Citing this family (12)
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---|---|---|---|---|
JP5855879B2 (en) * | 2011-09-12 | 2016-02-09 | 株式会社岡村製作所 | Chair |
USD699959S1 (en) | 2012-09-20 | 2014-02-25 | Steelcase Inc. | Chair |
USD781605S1 (en) | 2015-04-24 | 2017-03-21 | Steelcase Inc. | Chair |
USD699958S1 (en) | 2012-09-20 | 2014-02-25 | Steelcase Inc. | Chair |
JP6529154B2 (en) * | 2014-10-24 | 2019-06-12 | 株式会社オカムラ | Chair load support member and chair |
JP6414964B2 (en) * | 2014-10-24 | 2018-10-31 | 株式会社オカムラ | Chair load bearing member and chair |
USD781604S1 (en) | 2015-04-24 | 2017-03-21 | Steelcase Inc. | Chair |
USD758774S1 (en) | 2015-04-24 | 2016-06-14 | Steelcase Inc. | Headrest assembly |
USD759415S1 (en) | 2015-04-24 | 2016-06-21 | Steelcase Inc. | Headrest |
USD760526S1 (en) | 2015-04-24 | 2016-07-05 | Steelcase Inc. | Headrest assembly |
WO2017213229A1 (en) * | 2016-06-10 | 2017-12-14 | 株式会社岡村製作所 | Load support structure for chair, load support body for chair, and chair |
US11690457B2 (en) * | 2020-02-04 | 2023-07-04 | Hni Technologies Inc. | Chair with flexible internal support |
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2010
- 2010-10-19 CA CA2778163A patent/CA2778163A1/en not_active Abandoned
- 2010-10-19 EP EP10824921.0A patent/EP2491821A4/en not_active Withdrawn
- 2010-10-19 WO PCT/JP2010/068341 patent/WO2011049072A1/en active Application Filing
- 2010-10-19 US US13/503,001 patent/US20120212027A1/en not_active Abandoned
- 2010-10-19 KR KR1020127009933A patent/KR20120098633A/en not_active Application Discontinuation
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Also Published As
Publication number | Publication date |
---|---|
CN102573571A (en) | 2012-07-11 |
EP2491821A1 (en) | 2012-08-29 |
KR20120098633A (en) | 2012-09-05 |
US20120212027A1 (en) | 2012-08-23 |
JP2011083518A (en) | 2011-04-28 |
EP2491821A4 (en) | 2014-10-29 |
CA2778163A1 (en) | 2011-04-28 |
JP5606717B2 (en) | 2014-10-15 |
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