JP7383763B2

JP7383763B2 - Chair

Info

Publication number: JP7383763B2
Application number: JP2022100424A
Authority: JP
Inventors: 悟笹崎
Original assignee: Okamura Corp
Current assignee: Okamura Corp
Priority date: 2017-04-18
Filing date: 2022-06-22
Publication date: 2023-11-20
Anticipated expiration: 2037-04-18
Also published as: JP2022118190A; JP6872406B2; JP2021118867A; JP7096394B2; JP2018175588A

Description

本発明は、劇場や講堂等の施設に設置される椅子に用いられる椅子に関する。 The present invention relates to a chair used for a chair installed in a facility such as a theater or an auditorium.

従来、劇場や講堂等の施設に設置される椅子として、例えば、特許文献１に示されるように、施設の前後方向に沿う手前側に位置し、着座者の背中に接するウレタン等の弾性部材を含む背当部材と、奥側に位置し、背当部材を支えるとともに、背当部材を介して入力される着座者の荷重を支持する強度部材としての背面板部材と、を備えるものが知られている。
このような椅子では、施設の前後方向に複数並設されることから、自席の背面側に位置する椅子に着座する他の着座者からの視認性を下げることを目的として、背面板部材との前後方向の間隔を大きく設定するとともに、背当部材に対して背面板部材の幅方向の寸法も大きくしている。 Conventionally, as shown in Patent Document 1, chairs installed in facilities such as theaters and auditoriums have been equipped with an elastic member made of urethane or the like that is located on the front side along the front-rear direction of the facility and comes in contact with the back of the seated person. A backrest member is known, and a back plate member is located on the back side and serves as a strength member that supports the backrest member and supports the load of the seated person input via the backrest member. ing.
Since multiple such chairs are installed in parallel in the front and rear directions of the facility, the back plate member is designed to reduce visibility from other people sitting on the chair located on the back side of their own seat. The distance in the front-rear direction is set large, and the dimension in the width direction of the back plate member is also made large with respect to the back support member.

ところで、劇場や講堂といった施設では、利用者の性別や年代が様々であり、手足の筋力が低下した利用者も多く存在することが想定されている。また、これらの施設では、一般的に、床面が前方を向く斜面、あるいは前方に向けて低段化する段床とすることで、最前方のステージを好適に視認できる構造をしている。そのため、例えば手足の筋力が低下した利用者にとっては、施設の幅方向に隣り合う椅子の列の最も外側の椅子、換言すれば椅子の列同士の間の通路に面する椅子に手掛かり部材が設けられていることが望ましいとされ、例えば特許文献２、３に開示されている。 By the way, in facilities such as theaters and auditoriums, the users are of various genders and ages, and it is assumed that there are many users who have decreased muscle strength in their limbs. In addition, these facilities generally have a structure in which the frontmost stage can be viewed favorably by having a sloped floor surface facing forward, or a stepped floor that becomes lower toward the front. Therefore, for example, for users who have decreased muscle strength in their limbs, handhold members may be installed on the outermost chairs of adjacent rows of chairs in the width direction of the facility, in other words, on the chairs facing the aisle between the rows of chairs. It is said that it is desirable to have the same, and is disclosed in Patent Documents 2 and 3, for example.

特許文献２、３には、椅子の背凭れ上部の角部から外方に向けて突出する突出部材を設けたり、手掛かりになるリング形状を形成するグリップを設ける構成について記載されちる。このような構成を採用することにより、利用者は背凭れの一部に設けられる手掛かり（上述した突出部材やグリップ）を把持することで、通路の歩行が補助される。 Patent Documents 2 and 3 describe configurations in which a protrusion member is provided that protrudes outward from the corner of the upper part of the back of the chair, and a grip that forms a ring shape that serves as a handhold is provided. By employing such a configuration, the user is assisted in walking along the aisle by grasping a handhold (the above-mentioned protruding member or grip) provided on a part of the backrest.

特許第４６３６８７３号公報Patent No. 4636873 特許第３６０１９５２号公報Patent No. 3601952 特開２０１４－０３１０５２号公報Japanese Patent Application Publication No. 2014-031052

しかしながら、従来の椅子では、以下のような問題があった。
すなわち、上述したような手掛かりが設けられた椅子では、その手掛かりを利用者が把持して瞬間的に椅子に利用者が体重をかけることによって大きな荷重がかかった状態になる。このような場合には、その椅子に着座している利用者に前記荷重によって椅子を揺さぶるような動きに伴う違和感を与えるおそれがあった。
また、劇場や講堂等の施設では、他の利用者を避けながら椅子の背面側の空間を幅方向に移動するという状況が多く発生する。そして、とくに特許文献３に開示されるようなリング状の手掛かり部を有する構成の場合には、上述したような幅方向の移動の際にリング状の手掛かり部に利用者の荷物が引っ掛かり、移動が妨げられるという問題があった。 However, conventional chairs have the following problems.
That is, in a chair provided with a handhold as described above, the user grasps the handhold and instantaneously puts his or her weight on the chair, resulting in a state where a large load is applied. In such a case, there is a possibility that the load may cause a user sitting on the chair to feel uncomfortable due to the movement of shaking the chair.
Further, in facilities such as theaters and auditoriums, situations often occur in which the user moves in the width direction of the space behind the chair while avoiding other users. In particular, in the case of a configuration having a ring-shaped handhold portion as disclosed in Patent Document 3, the user's baggage may be caught in the ring-shaped handhold portion when moving in the width direction as described above, and the user's luggage may be moved. The problem was that it was blocked.

本発明は、上述する問題点に鑑みてなされたもので、劇場や講堂といった施設で利用される椅子において、通路を経由して着座したい椅子に安全にアプローチすることが可能な椅子を提供することを目的とする。 The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a chair used in facilities such as theaters and auditoriums that allows you to safely approach the chair you want to sit on via an aisle. With the goal.

上記目的を達成するため、本発明に係る椅子は、着座者の背中に接する背当部材と、該背当部材の奥行方向奥側に配置され、前記背当部材を奥行方向の奥側から支持する背面板部材と、を備える椅子において、前記背面板部材は、上辺と、前記椅子の奥行方向に交差する幅方向において前記上辺よりも外側方に位置する側辺と、を備え、前記上辺の外側端部は、前記椅子の設置面からの高さが前記上辺の他の部分よりも高い位置であり、前記背面板部材は、前記上辺と前記側辺とがそれぞれ前記背当部材の上方及び側方に突出し、前記突出した前記上辺と前記側辺との角部に、前記上辺の外側端部が設けられ、前記上辺が前記幅方向中央部から前記外側端部に向けて漸次上方となるように湾曲し、幅方向で前記外側端部が前記背当部材よりも外側に位置することを特徴としている。
本発明に係る椅子は、着座者の背中に接する背当部材と、該背当部材の奥行方向奥側に配置され、前記背当部材を奥行方向の奥側から支持する背面板部材と、を備えた椅子を、前記椅子の奥行方向に交差する幅方向に複数並べて連結させた連結椅子を構成し、前記背面板部材は、上辺と、前記幅方向において前記上辺よりも外側方に位置する側辺と、を備え、前記上辺の外側端部は、前記椅子の設置面からの高さが前記上辺の他の部分よりも高い位置であり、前記上辺の外側端部は、前記連結椅子の前記幅方向の両側に配置され、前記上辺が前記幅方向中央部から前記外側端部に向けて漸次上方となるように湾曲し、幅方向で前記外側端部が前記背当部材よりも外側に位置することを特徴としている。 In order to achieve the above object, the chair according to the present invention includes a back support member that is in contact with the back of a seated person, and a back support member that is disposed on the back side in the depth direction of the back support member and supports the back support member from the back side in the depth direction. In the chair, the back plate member includes an upper side and a side side located on the outer side of the upper side in the width direction intersecting the depth direction of the chair, The outer end is at a position where the height from the installation surface of the chair is higher than other parts of the upper side, and the upper side and the side sides of the back plate member are above and above the back support member, respectively. An outer end of the upper side is provided at a corner of the protruding upper side and the side edge , and the upper side gradually becomes upward from the center in the width direction toward the outer end. It is characterized in that it is curved as shown in FIG .
The chair according to the present invention includes a back support member that contacts the back of a seated person, and a back plate member that is disposed on the back side in the depth direction of the back support member and supports the back support member from the back side in the depth direction. A connected chair is constructed by arranging and connecting a plurality of chairs in a width direction intersecting the depth direction of the chair, and the back plate member has an upper side and a side located on the outer side of the upper side in the width direction. a side, the outer end of the upper side is at a position higher in height from the installation surface of the chair than the other part of the upper side, and the outer end of the upper side is located at the side of the connecting chair. arranged on both sides in the width direction, the upper side is curved gradually upward from the center part in the width direction toward the outer end part, and the outer end part is located outside the back support member in the width direction. It is characterized by

本発明では、背面板部材の外周縁部に外側方に向けて下傾する平坦面を形成する第一連結辺を有しているので、とくに劇場や講堂等の施設に設置される椅子に採用された場合には、背面板部材の第一連結辺に形成された平坦面に利用者の手を一時的に載置する部位として機能させることができる。したがって、利用者の手から入力された荷重は、第一連結辺の平坦面に対して直交する方向に作用することとなる。すなわち、例えばリング状の手掛け部材を椅子の背凭れの背面板部材に形成した場合のように、背面板部材を厚さ方向に揺さぶる力が発生しにくくなり、また利用者の荷物が引っ掛かることを防止することができる。
この場合には、椅子の全体形状として背面板部材の上辺の角の部分が反り上がるような形状となり、その角の部分である外周縁部に位置する平坦面を形成する第一連結辺に視覚的特徴を付与することによって、例えば椅子の幅方向に設けられる通路を通る利用者から視認し易くなる。 In the present invention, since the outer peripheral edge of the back plate member has a first connecting side that forms a flat surface that slopes downward toward the outside, it is particularly applicable to chairs installed in facilities such as theaters and auditoriums. In this case, the flat surface formed on the first connecting side of the back plate member can function as a part on which the user's hand is temporarily placed. Therefore, the load input from the user's hand acts in a direction perpendicular to the flat surface of the first connecting side. That is, for example, when a ring-shaped handle member is formed on the back plate member of the back of a chair, the force that shakes the back plate member in the thickness direction is less likely to be generated, and the user's luggage is prevented from getting caught. It can be prevented.
In this case, the overall shape of the chair is such that the upper corner of the back plate member is curved upward, and the first connecting edge forming the flat surface located at the outer periphery of the corner is visually visible. By giving the chair a distinctive feature, it becomes easier to visually recognize it from a user who passes through a passage provided in the width direction of the chair, for example.

また、本発明に係る椅子は、前記幅方向に離間して床面上に起立する一対の脚部と、前記一対の脚部の間に配置される座部と、を備えることが好ましい。 Further, the chair according to the present invention preferably includes a pair of legs that stand apart from each other in the width direction and stand up on the floor surface, and a seat that is disposed between the pair of legs.

また、本発明に係る椅子は、前記背面板部材は、前記一対の脚部に固定されていることを特徴としてもよい。 Furthermore, the chair according to the present invention may be characterized in that the back plate member is fixed to the pair of legs .

また、本発明に係る椅子では、前記一対の脚部の下端は、前記背面板部材の上端より前方に配置されていることが好ましい。 Further, in the chair according to the present invention, it is preferable that the lower ends of the pair of legs are arranged forward of the upper end of the back plate member .

また、本発明に係る椅子では、前記側辺の上端部は、前記上辺の外側端部よりも低い位置に配置されていることが好ましい。 Moreover, in the chair according to the present invention, it is preferable that the upper end of the side edge is located at a lower position than the outer edge of the upper edge.

また、本発明に係る椅子では、前記背面板部材は、前記側辺の上端部と、前記上辺の外側端部とを連結する第一連結辺を備えていることを特徴としてもよい。 Further, in the chair according to the present invention, the back plate member may include a first connecting side that connects the upper end of the side and the outer end of the upper side.

また、本発明に係る椅子では、前記上辺は、水平方向に延設される水平部から前記外側端部に向けて漸次上方となるように湾曲していることを特徴としてもよい。 Further, in the chair according to the present invention, the upper side may be curved gradually upward from a horizontal portion extending in the horizontal direction toward the outer end portion.

また、本発明に係る椅子では、前記背面板部材は、前記背当部材の全面を後方から覆っていることを特徴としてもよい。 Further, in the chair according to the present invention , the back plate member may cover the entire surface of the back support member from the rear .

本発明の椅子によれば、劇場や講堂といった施設で利用される椅子において、通路を経由して着座したい椅子に安全にアプローチすることが可能とする手掛かりを有することができる。 According to the chair of the present invention, a chair used in a facility such as a theater or an auditorium can have a clue that allows the user to safely approach a desired chair via a passageway.

本発明の実施の形態による複数の椅子を有する連結椅子の全体構成を示す斜視図である。1 is a perspective view showing the overall configuration of a connected chair having a plurality of chairs according to an embodiment of the present invention. 図１に示す連結椅子の一部を前方から見た正面図である。FIG. 2 is a front view of a portion of the articulated chair shown in FIG. 1 when viewed from the front. 前後方向に配列される連結椅子を左右方向から見た一部破断した側面図である。FIG. 2 is a partially cutaway side view of the connected chairs arranged in the front-rear direction, viewed from the left and right. 椅子の側断面図であって、座部と背当部材の張材を省略した図である。FIG. 2 is a side cross-sectional view of the chair, with the upholstery of the seat and back member omitted. 脚部とサイドパネルの取り付け構造を示す縦断面図であって、脚部の両側にサイドパネルを取り付けた状態の図である。FIG. 2 is a vertical cross-sectional view showing the attachment structure of the legs and side panels, with the side panels attached to both sides of the legs. 図５に示す脚部とサイドパネルの取り付け構造を示す縦断面図において、脚部にサイドパネルを取り付ける前の状態を示す図である。FIG. 6 is a vertical cross-sectional view showing the mounting structure of the legs and side panels shown in FIG. 5 , showing a state before the side panels are attached to the legs. 図５に示す脚部とサイドパネルの取り付け構造において、左右方向から見た側面図である。FIG. 6 is a side view of the leg and side panel attachment structure shown in FIG. 5 as seen from the left and right direction. 図６に示す脚部とサイドパネルの取り付け構造において、左右方向から見た側面図である。FIG. 7 is a side view of the mounting structure of the legs and side panels shown in FIG. 6 as seen from the left and right direction. 図５に示すサイドパネルの取り付け構造の要部拡大図であって、（ａ）は取り付け後の図、（ｂ）は取り付け前の図である。FIG. 6 is an enlarged view of a main part of the side panel mounting structure shown in FIG. 5, in which (a) is a view after installation, and (b) is a view before installation. サイドパネルを内側面側から見た側面図である。FIG. 3 is a side view of the side panel viewed from the inner side. 背面板部材における傾斜部材の構成を示す斜視図である。It is a perspective view showing the composition of the slope member in a back board member. 変形例による連結椅子の全体構成を示す斜視図である。It is a perspective view showing the whole structure of the connected chair by a modification. 図１２に示す連結椅子の一部を前方から見た正面図である。FIG. 13 is a front view of a portion of the articulated chair shown in FIG. 12, seen from the front.

以下、本発明の実施形態による椅子について、図面に基づいて説明する。 Hereinafter, a chair according to an embodiment of the present invention will be described based on the drawings.

図１及び図２に示す本実施形態による椅子用背凭れを有する椅子１は、例えば劇場、講堂、ホール、会議場、待合室等において、建物の床面Ｆ（設置面）に左右方向Ｘ１に複数配列した状態で設置される。椅子１は、左右方向Ｘ１に複数（図では三脚）並び、これらが一体的に連結されて連結椅子１Ａを構成し、かつこの連結椅子１Ａが前後方向Ｘ２、及び左右方向Ｘ１に複数並んで設置される。 A chair 1 having a chair back according to the present embodiment shown in FIGS. 1 and 2 is installed in a plurality of seats in the left-right direction They are installed in an array. A plurality of chairs 1 (tripods in the figure) are lined up in the left-right direction be done.

ここで、以下の説明における前後、左右及び上下の向きは、椅子の座体上で背凭れに背を向けて着座した着座者を基準とする。つまり、前記着座者が向く方向が「前方」となる。また、上述したように椅子１の左右方向（椅子１の幅方向）を符号Ｘ１、前後方向（椅子１の奥行方向）を符号Ｘ２で示す。 Here, the directions of front and back, left and right, and up and down in the following description are based on a seated person sitting on the seat body of the chair with his back facing the backrest. In other words, the direction in which the seated person faces is the "front" direction. Further, as described above, the left-right direction (the width direction of the chair 1) of the chair 1 is indicated by the symbol X1, and the longitudinal direction (the depth direction of the chair 1) is indicated by the symbol X2.

個々の椅子１は、椅子１の左右方向Ｘ１に離間して床面Ｆ上に起立する一対の脚部２と、一対の脚部２の間に配置される跳ね上げ式の座部３と、座部３への着座者が背中で寄り掛かる部分である背凭れ部４と、着座者が肘を掛けるための左右一対の肘掛部５と、を備えている。そして、左右方向Ｘ１に配列された複数の椅子１が左右一対の脚部２、２によって床面Ｆ上に一体的に固定される。 Each chair 1 includes a pair of legs 2 that stand apart from each other in the left-right direction X1 of the chair 1 and stand up on the floor surface F, and a flip-up seat 3 that is disposed between the pair of legs 2. It includes a backrest part 4, which is a part on which a person seated on the seat part 3 leans their back, and a pair of left and right armrest parts 5, on which the person rests his or her elbows. A plurality of chairs 1 arranged in the left-right direction X1 are integrally fixed on the floor surface F by a pair of left and right legs 2, 2.

図２に示すように、各脚部２は、鋼板等の強度部材からなり、椅子１の左右方向Ｘ１と直交するように起立する一対のサイドパネル２０、２０を、左右方向Ｘ１で間隔を空けて対向配置して構成されている。すなわち、脚部２は、上部に肘掛部５を備えるサイドパネル２０と組み合わされて構成されている。
ここで、脚部２の下端には床面Ｆに床固定板２１が設けられ、この床固定板２１が例えば不図示のアンカーボルトを使用して床面Ｆに固定される。つまり、床面Ｆに埋設されたアンカーボルトに床固定板２１を貫通し、そのアンカーボルトにナットを螺着し締め込むことで、脚部２が床面Ｆに固定される。 As shown in FIG. 2, each leg part 2 is made of a strength member such as a steel plate, and has a pair of side panels 20, 20 that stand up perpendicularly to the left-right direction X1 of the chair 1, with an interval in the left-right direction X1. They are arranged facing each other. That is, the leg portion 2 is configured in combination with a side panel 20 having an armrest portion 5 on the upper portion.
Here, a floor fixing plate 21 is provided on the floor surface F at the lower end of the leg portion 2, and this floor fixing plate 21 is fixed to the floor surface F using, for example, an anchor bolt (not shown). That is, the leg part 2 is fixed to the floor surface F by penetrating the floor fixing plate 21 into an anchor bolt embedded in the floor surface F, and screwing and tightening a nut onto the anchor bolt.

座部３は、隣り合う左右の脚部２（サイドパネル２０）間で着座面３ａを略水平にした使用姿勢（図中符号３Ａで示す）と、その前側を上方に変位させて着座面３ａを起立させた収納姿勢（図中二点鎖線の符号３Ｂで示す）と、の間で回動可能（跳ね上げ可能）に設けられ、背凭れ部４と別体に構成されている。座部３は、着座面を形成する不図示の座クッションと、座クッションを支持する不図示の座フレームを有する。 The seat part 3 can be used in two positions: one in which the seating surface 3a is made substantially horizontal between the adjacent left and right legs 2 (side panels 20) (indicated by reference numeral 3A in the figure), and the other in which the front side of the seating surface 3a is displaced upward. It is provided so as to be rotatable (capable of flipping up) between a storage position in which the seat is upright (indicated by the double-dashed chain line 3B in the figure), and is constructed separately from the backrest portion 4. The seat portion 3 includes a seat cushion (not shown) forming a seating surface and a seat frame (not shown) supporting the seat cushion.

図２に示すように、座部３における使用姿勢３Ａでの後側にある基端部は、左右の脚部２（サイドパネル２０）のそれぞれの対向面に固定されている回動軸３１に支持される。
座部３は、使用姿勢３Ａでの前側にある先端部を上下に変位させるように、左右方向Ｘ１に沿う回動軸３１の支持軸Ｃ１を中心に回動する。例えば支持軸Ｃ１の周囲には、座部３を使用姿勢３Ａから収納姿勢３Ｂに跳ね上げるように付勢する不図示の付勢手段（例えば弾性部材）が設けられる。
このように、座部３が跳ね上げ式（回動式）のため、図３及び図４に示すように、座部３の着座面３ａ及び背面３ｂと背凭れ部４の前面との相互間には、座部３が使用姿勢３Ａ、収納姿勢３Ｂ、及び使用姿勢３Ａと収納姿勢３Ｂの中間姿勢（回動途中の姿勢）のうち、いずれか１以上の姿勢にある状態で、座部３の下方へと連なる隙間Ｓ（図１参照）が生じることになる。 As shown in FIG. 2, the base end of the seat 3 on the rear side in the usage position 3A is attached to a rotation shaft 31 fixed to the opposing surfaces of the left and right legs 2 (side panels 20). Supported.
The seat portion 3 rotates around the support axis C1 of the rotation shaft 31 along the left-right direction X1 so as to vertically displace the front end portion in the usage posture 3A. For example, a biasing means (for example, an elastic member) not shown is provided around the support shaft C1 to bias the seat portion 3 so as to spring up from the usage position 3A to the storage position 3B.
In this way, since the seat part 3 is a flip-up type (rotating type), as shown in FIGS. , the seat 3 is in one or more of the following postures: the use posture 3A, the storage posture 3B, and the intermediate posture (a posture in the middle of rotation) between the use posture 3A and the storage posture 3B. A gap S (see FIG. 1) is created that extends downward.

図５及び図６に示すように、脚部２は、床面Ｆに立設される起立板２２と、起立板２２の上端２２ｂに設けられた上部フランジ２３と、から前後方向Ｘ１から見て略Ｔ字形状に形成されている。起立板２２は、図７及び図８に示すように、上下方向の略中央から上側の部分において左右方向Ｘ２から見た側面視で逆台形状をなし、左右両側にサイドパネル２０、２０が取り付けられる側板取付部２Ａを有している。上部フランジ２３には、後述するサイドパネル２０と同様の木製又は樹脂製の肘掛部５が上方から外嵌させることにより装着されている。 As shown in FIGS. 5 and 6, the leg portion 2 includes an upright plate 22 erected on the floor F and an upper flange 23 provided at the upper end 22b of the upright plate 22 when viewed from the front-rear direction X1. It is formed into an approximately T-shape. As shown in FIGS. 7 and 8, the upright plate 22 has an inverted trapezoidal shape when viewed from the side in the left-right direction It has a side plate attachment part 2A. An armrest 5 made of wood or resin similar to the side panel 20 described later is attached to the upper flange 23 by being fitted from above.

図６、図８、及び図９（ａ）、（ｂ）に示すように、脚部２の側板取付部２Ａの上端側には、厚さ方向に貫通する一対の矩形状の第一開口部２４（開口凹部）が前後方向Ｘ２に間隔をあけて形成されている。各第一開口部２４は、側板取付部２Ａにおける上端が開放され凹状に切り欠かれた形状をなしている。 As shown in FIGS. 6, 8, and 9(a) and (b), a pair of rectangular first openings penetrating in the thickness direction are provided on the upper end side of the side plate mounting portion 2A of the leg portion 2. 24 (opening recesses) are formed at intervals in the front-rear direction X2. Each first opening 24 has a shape in which the upper end of the side plate attachment portion 2A is open and a concave cutout is formed.

上部フランジ２３は、図９（ａ）、（ｂ）に示すように、前後方向Ｘ１から見て起立板２２の上端２２ｂを中心にして左右両側に張り出した形状となっている。上部フランジ２３における起立板２２の第一開口部２４に面する部分には、第一開口部２４に向けて（下向きに向けて）開口するとともに、第一開口部２４の長さ方向（前後方向Ｘ２）に沿って延びる開口溝２３ａ（開口部）が形成されている。そして、本実施形態では、開口溝２３ａの中心が起立板２２の中心に一致しており、開口溝２３ａの溝幅Ｄ１が起立板２２の厚さ寸法Ｄ２よりも小さく設定されている。 As shown in FIGS. 9(a) and 9(b), the upper flange 23 has a shape that extends to both left and right sides with the upper end 22b of the upright plate 22 as the center when viewed from the front-rear direction X1. A portion of the upper flange 23 facing the first opening 24 of the upright plate 22 is opened toward the first opening 24 (downward) and is opened in the length direction (front-back direction) of the first opening 24. An opening groove 23a (opening) extending along X2) is formed. In this embodiment, the center of the opening groove 23a coincides with the center of the upright plate 22, and the groove width D1 of the opening groove 23a is set smaller than the thickness dimension D2 of the upright plate 22.

サイドパネル２０は、図８及び図１０に示すように、例えば木製（ベニヤ板や木質材料を含む）又は樹脂製の化粧板からなり、脚部２の側板取付部２Ａとほぼ同形状の逆台形状をなす平板状に形成され、側板取付部２Ａの左右両側を覆うように取り付けられる（図５及び図７参照）。サイドパネル２０は、外側面２０ａが外側に露出し、内側面２０ｂが側板取付部２Ａの外周面に対向して配置される。サイドパネル２０の内側面２０ｂの上端部には、脚部２における第一開口部２４を介して上部フランジ２３の開口溝２３ａの内側に嵌合する平板状の係合プレート２５（係合突部）を備えている。 As shown in FIGS. 8 and 10, the side panel 20 is made of, for example, a decorative board made of wood (including plywood and wood materials) or resin, and has an inverted trapezoidal shape that is approximately the same shape as the side plate attachment portion 2A of the leg portion 2. It is formed in a flat plate shape and is attached so as to cover both left and right sides of the side plate attachment portion 2A (see FIGS. 5 and 7). The side panel 20 has an outer surface 20a exposed to the outside, and an inner surface 20b facing the outer circumferential surface of the side plate attachment portion 2A. At the upper end of the inner surface 20b of the side panel 20, a flat engagement plate 25 (engaging protrusion ).

係合プレート２５は、上部がサイドパネル２０の上端２２ｂよりも上方に突出するように設けられ、鋼製部材でねじ等の固定手段によって内側面２０ｂに固定されている。図９（ｂ）に示すように、係合プレート２５の高さ寸法Ｌ１は、第一開口部２４の上下方向の寸法と開口溝２３ａの深さ寸法とを合わせた寸法（符号Ｌ２）に相当する。
係合プレート２５の厚さ寸法は、開口溝２３ａの溝幅Ｄ１よりも小さく、かつ開口溝２３ａに左右一対の両側のサイドパネル２０、２０のそれぞれの係合プレート２５、２５が同時に嵌合されるような寸法（つまり開口溝２３ａの溝幅Ｄ１の１／２以下の寸法）に設定されている。そのため、開口溝２３ａには、左右一対のサイドパネル２０、２０に設けられる係合プレート２５の両方が嵌合される。 The engagement plate 25 is provided so that its upper portion protrudes above the upper end 22b of the side panel 20, and is a steel member fixed to the inner surface 20b by fixing means such as screws. As shown in FIG. 9(b), the height dimension L1 of the engagement plate 25 corresponds to the dimension (symbol L2) that is the sum of the vertical dimension of the first opening 24 and the depth dimension of the opening groove 23a. do.
The thickness dimension of the engagement plate 25 is smaller than the groove width D1 of the opening groove 23a, and the engagement plates 25, 25 of the pair of left and right side panels 20, 20 are simultaneously fitted into the opening groove 23a. (In other words, the dimension is set to 1/2 or less of the groove width D1 of the opening groove 23a). Therefore, both of the engagement plates 25 provided on the pair of left and right side panels 20, 20 are fitted into the opening groove 23a.

また、係合プレート２５は、図９（ａ）に示すように、サイドパネル２０の内側面２０ｂが起立板２２の側板取付部２Ａに接した状態で、第一開口溝２３ａにおける厚さ方向（左右方向Ｘ１に相当）の開口縁２３ｂに対して、第一開口溝２３ａへの嵌合を規制するように起立板２２の厚さ方向（左右方向Ｘ１に相当）の外側にずれた位置に形成され、かつ第一開口溝２３ａに嵌合した嵌合姿勢の状態で、前記厚さ方向で第一開口溝２３ａから離間する方向に付勢され第一開口溝２３ａの内面が押圧された構成となっている。つまり、サイドパネル２０の内側面２０ｂが側板取付部２Ａに接した状態で、係合プレート２５が第一開口溝２３ａに嵌合され、第一開口溝２３ａに嵌合した係合プレート２５が第一開口部２４の内側に挿入され、かつ第一開口溝２３ａの内面を押圧するように付勢されて構成されている。 Further, as shown in FIG. 9(a), the engagement plate 25 is arranged in the thickness direction ( Formed at a position shifted outward in the thickness direction of the upright plate 22 (corresponding to the left-right direction X1) with respect to the opening edge 23b in the left-right direction X1) so as to restrict fitting into the first opening groove 23a. and the inner surface of the first opening groove 23a is pressed in the direction of separating from the first opening groove 23a in the thickness direction in the fitted posture in which the first opening groove 23a is fitted. It has become. That is, with the inner surface 20b of the side panel 20 in contact with the side plate attachment portion 2A, the engagement plate 25 is fitted into the first opening groove 23a, and the engagement plate 25 fitted into the first opening groove 23a is inserted into the first opening groove 23a. It is inserted into the inside of one opening 24 and is biased so as to press the inner surface of the first opening groove 23a.

また、サイドパネル２０の下端部分には、図８及び図１０に示すように、厚さ方向に貫通するボルト挿通孔２０ｃが設けられており、このボルト挿通孔２０ｃに挿通された不図示のボルトによって起立板２２に設けられる雌ねじ部に螺合される。
このとき、係合プレート２５の復元方向と反対向きにボルトを締め付けることとなり、サイドパネル２０が起立板２２に固定されている。 Further, as shown in FIGS. 8 and 10, the lower end portion of the side panel 20 is provided with a bolt insertion hole 20c that penetrates in the thickness direction, and a bolt (not shown) inserted into the bolt insertion hole 20c is screwed into a female threaded portion provided on the upright plate 22.
At this time, the bolts are tightened in a direction opposite to the restoration direction of the engagement plate 25, and the side panel 20 is fixed to the upright plate 22.

肘掛部５は、図１に示すように、椅子１の外側部に設置されるが、隣接する椅子１、１同士の間ではその中間部に両席共用となる１個が設置される。肘掛部５は、図６に示すように、前後方向Ｘ２に長く延びた形状で前後方向Ｘ２から見た断面視で略矩形状をなし、下端面に前後方向Ｘ２に沿って延在する嵌合凹部５ａが形成されている。肘掛部５は、その嵌合凹部５ａを脚部２の上部フランジ２３に対して上方から外嵌させることで、脚部２に取り付けられる。なお、嵌合凹部５ａの深さ寸法は、上部フランジ２３の厚さ寸法よりも大きく設定され、これにより肘掛部５を上部フランジ２３に嵌合させた状態で、外方から上部フランジ２３が隠れて露出しないようになっている。 As shown in FIG. 1, the armrests 5 are installed on the outer side of the chair 1, and between adjacent chairs 1, one armrest 5 is installed in the middle between adjacent chairs 1, which is shared by both seats. As shown in FIG. 6, the armrest portion 5 has a shape that extends in the front-rear direction X2 and has a substantially rectangular shape in a cross-sectional view viewed from the front-rear direction X2, and has a fitting portion extending along the front-rear direction X2 on the lower end surface. A recess 5a is formed. The armrest portion 5 is attached to the leg portion 2 by externally fitting the fitting recess 5a onto the upper flange 23 of the leg portion 2 from above. The depth of the fitting recess 5a is set larger than the thickness of the upper flange 23, so that when the armrest 5 is fitted into the upper flange 23, the upper flange 23 is hidden from the outside. It is designed so that it is not exposed.

図１及び図３に示すように、背凭れ部４は、前後方向Ｘ２の手前側に配置され、着座者の背中に接する背当部材４０と、背当部材４０を前後方向Ｘ２の後側から支持する強度部材としての背面板部材６と、を備えている。 As shown in FIGS. 1 and 3, the backrest part 4 is disposed on the front side in the front-back direction A back plate member 6 is provided as a supporting strength member.

背当部材４０は、図３及び図４に示すように、背面板部材６の前面６ａに着脱自在に取り付けられている。背当部材４０は、着座者の着座荷重の支持面（背凭れ面４ａ）を構成する背張材４１と、背張材４１を後方から支持する外周構成部材４２と、を備える。背張材４１は、着座者の腰部を後方から支持し易いように、背凭れ面４ａの上下中間部よりも下側の位置を前方に凸の頂部となる形状をなしている。 The back support member 40 is detachably attached to the front surface 6a of the back plate member 6, as shown in FIGS. 3 and 4. The back support member 40 includes a back upholstery 41 that constitutes a support surface (backrest surface 4a) for the seating load of the seated person, and an outer peripheral component 42 that supports the back upholstery 41 from the rear. The back upholstery 41 has a shape with a forwardly convex peak located below the upper and lower middle portions of the backrest surface 4a so as to easily support the lower back of the seated person from behind.

外周構成部材４２は、図４に示すように、合板やパイプ、木枠等で形成され背張材４１の外周縁部が支持される一対の張材支持部（図示省略）と、一対の張材支持部を背張材４１よりも着座荷重の入力方向（前後方向Ｘ２）に沿う後側で連結するとともに、背面板部材６に遊動可能に支持される連結開口（図示省略）と、を有している。背張材４１は、外周構成部材４２における対向する一対の張材支持部の間に張設される。
ここで、背面板部材６の前面６ａの上部側には、フック形状の連結具４３が一つの背当部材４０に対して複数設けられている。この連結具４３に上述した外周構成部材４２の連結開口を掛止させることにより背当部材４０が背面板部材６の前面６ａに支持される。 As shown in FIG. 4, the outer peripheral component member 42 includes a pair of upholstery support parts (not shown) formed of plywood, pipes, wooden frames, etc., and supporting the outer peripheral edge of the back upholstery material 41, and a pair of upholstery support parts (not shown) that are formed of plywood, pipes, wooden frames, etc. It has a connection opening (not shown) which connects the material support part to the rear side of the back upholstery material 41 along the seating load input direction (front-rear direction X2) and is movably supported by the back plate member 6. are doing. The back upholstery material 41 is stretched between a pair of opposing upholstery support portions in the outer peripheral component member 42 .
Here, on the upper side of the front surface 6a of the back plate member 6, a plurality of hook-shaped connectors 43 are provided for one back support member 40. The back support member 40 is supported on the front surface 6a of the back plate member 6 by engaging the connection opening of the outer peripheral component 42 described above with this connector 43.

図１及び図３に示すように、背面板部材６は、前後方向Ｘ２に直交する鉛直面に対して後傾した平面に沿う木製の平板状をなし、正面視で左右方向Ｘ１に長い長方形状に設けられる。そして、背面板部材６は、左右一対の脚部２、２間の空間を椅子１の前後方向Ｘ２を遮蔽するように脚部２に対して不図示のブラケットを介してボルト締結により固定されている。 As shown in FIGS. 1 and 3, the back plate member 6 has a wooden flat plate shape along a plane tilted backward with respect to a vertical plane perpendicular to the front-rear direction X2, and has a rectangular shape that is long in the left-right direction X1 when viewed from the front. established in The back plate member 6 is fixed to the leg portion 2 by bolts via a bracket (not shown) so as to block the space between the pair of left and right leg portions 2, 2 from the front-rear direction X2 of the chair 1. There is.

背面板部材６は、連結椅子１Ａとして構成される複数（３脚）の椅子１のすべてを後方から遮蔽するように一体的に設けられ、椅子１，１同士の間にわたって設けられ、各椅子１のサイドパネル２０や肘掛部５の後面が隠れるまで延在した状態で配置されている（図２参照）。背面板部材６の下端６１ａは、床面Ｆに対して離間している。 The back plate member 6 is integrally provided so as to shield all of the plurality of (three) chairs 1 configured as the connected chair 1A from the rear, and is provided between the chairs 1 and 1, and is provided between each chair 1. The side panel 20 and the rear surface of the armrest 5 are extended until they are hidden (see FIG. 2). The lower end 61a of the back plate member 6 is spaced apart from the floor surface F.

また、図２に示すように、背面板部材６は、左右方向Ｘ１に沿って延在する上辺６３と、左右方向Ｘ１において上辺６３よりも外側方に位置する側辺６４と、側辺６４の上端部６４ａと上辺６３の左右方向Ｘ１に沿う外側端部６３ａとを連結し、背面板部材６の外周縁部に、外側方に向けて下傾する平坦面を形成する第一連結辺６５と、を備えている。
ここで、背面板部材６の上辺６３と側辺６４とは、それぞれ背当部材４０の上方及び側方に突出している。第一連結辺６５は、背当部材４０より突出した部分となる上辺６３と側辺６４との角部に設けられている。 Further, as shown in FIG. 2, the back plate member 6 has an upper side 63 extending along the left-right direction X1, a side side 64 located outside the upper side 63 in the left-right direction A first connecting side 65 connects the upper end 64a and the outer end 63a of the upper side 63 along the left-right direction , is equipped with.
Here, the upper side 63 and side side 64 of the back plate member 6 protrude above and to the side of the back support member 40, respectively. The first connecting side 65 is provided at the corner of the upper side 63 and the side side 64 that protrudes from the back support member 40 .

上辺６３の外側端部６３ａは、椅子１の設置面である床面Ｆからの高さが上辺６３の他の部分（上辺６３における外側端部６３ａより左右方向Ｘ１で中央部側の部分）よりも高い位置となっている。つまり、連結椅子１Ａ全体としての上辺６３は、外側端部６３ａよりも左右方向Ｘ１の内側において水平方向に延設される水平辺６３Ａと、水平辺６３Ａの左右方向Ｘ２の外端部と上辺６３の外側端部６３ａとを連結する第二連結辺６３Ｂと、を有している。第二連結辺６３Ｂは、外側端部６３ａから水平辺６３Ａに向けて漸次、下方へ向けて突となるように湾曲している。したがって、本実施形態において背面板部材６の上辺６３が、連結椅子１Ａ全体として左右方向Ｘ１の中央から両外側端部６３ａ、６３ａにかけて上に反り上がるようなデザインとなっている（図１参照）。 The outer end 63a of the upper side 63 has a height higher than the other part of the upper side 63 (the part of the upper side 63 closer to the center in the left-right direction X1 than the outer end 63a of the upper side 63) from the floor F, which is the installation surface of the chair 1. It is also in a high position. That is, the upper side 63 of the connected chair 1A as a whole includes a horizontal side 63A extending horizontally inside the outer end 63a in the left-right direction X1, an outer end of the horizontal side 63A in the left-right direction X2, and the upper side 63. It has a second connecting side 63B that connects with the outer end 63a of. The second connecting side 63B gradually curves downward from the outer end 63a toward the horizontal side 63A. Therefore, in this embodiment, the upper side 63 of the back plate member 6 is designed to curve upward from the center of the connected chair 1A in the left-right direction X1 to both outer ends 63a, 63a (see FIG. 1). .

なお、第一連結辺６５の平坦面部分には、例えばゴム、プラスチック等、あるいは弾性変形可能な板材（弾性部材）により形成された薄板状のすべり止め部材（図示省略）が設けられていてもよい。この場合には、背面板部材６の第一連結辺６５の平坦部に、例えば厚さ方向に弾性変形するゴム等のすべり止め部材が設けられているので、その平坦部に載せた利用者の手がすべって第一連結辺６５から外れてしまい、例えば体のバランスを崩してしまうことを防ぐことが可能となる。 Note that a thin plate-like anti-slip member (not shown) made of rubber, plastic, etc., or an elastically deformable plate material (elastic member) may be provided on the flat surface portion of the first connecting side 65. good. In this case, a non-slip member such as rubber that deforms elastically in the thickness direction is provided on the flat part of the first connecting side 65 of the back plate member 6, so that the user placed on the flat part It is possible to prevent the hand from slipping and coming off the first connecting side 65, for example, from losing the balance of the body.

背面板部材６には、図３及び図４に示すように、座部３の下方における一対の脚部２、２の対向面間の領域に手前側に向けて下傾する下傾面６２ｂを有する傾斜部材６２が設けられている。傾斜部材６２は、例えば金属製材料や樹脂製材料からなり、背面板部材６に対して、前後方向Ｘ２ににおける手前側の領域に配置され、背面板部材６の下端６１ａから前後方向Ｘ２の前方に向けて漸次、下方に向けて連続して傾斜している。 As shown in FIGS. 3 and 4, the back plate member 6 has a downwardly inclined surface 62b that slopes downward toward the front in the area between the opposing surfaces of the pair of legs 2, 2 below the seat 3. An inclined member 62 is provided. The inclined member 62 is made of, for example, a metal material or a resin material, and is arranged in a region on the front side of the back plate member 6 in the front-rear direction X2, and extends from the lower end 61a of the back plate member 6 in the front-back direction X2. It slopes continuously and gradually towards the bottom.

また、傾斜部材６２は、背面板部材６とは独立した別部品として構成され、前後方向Ｘ２における奥側端部の下傾面６２ｂの上端において背面板部材６に連結可能な被連結部６２ｄを備え、この被連結部６２ｄが背面板部材６の前面６ａに対して前側からボルト等で着脱自在に固定される。さらに、傾斜部材６２は、左右方向Ｘ１における両端部が脚部２に非連結状態となる自由端６２ｅ（図２及び図１１参照）とされている。本実施の形態では、一対の脚部２、２のそれぞれの内側面と、傾斜部材６２の両自由端６２ｅ（両端縁）との間には、前後方向Ｘ２に沿って延びる間隙が形成されている。
そして、傾斜部材６２は、下面６２ａと床面Ｆとの間に空間Ｒを形成するように配置されている。 The inclined member 62 is configured as a separate component independent of the back plate member 6, and has a connected portion 62d that can be connected to the back plate member 6 at the upper end of the lower inclined surface 62b of the back end in the front-rear direction X2. The connected portion 62d is detachably fixed to the front surface 6a of the back plate member 6 from the front side with bolts or the like. Furthermore, both ends of the inclined member 62 in the left-right direction X1 are free ends 62e that are not connected to the leg portions 2 (see FIGS. 2 and 11). In the present embodiment, a gap is formed between the inner surfaces of the pair of legs 2, 2 and both free ends 62e (both edges) of the inclined member 62, extending along the front-rear direction X2. There is.
The inclined member 62 is arranged so as to form a space R between the lower surface 62a and the floor surface F.

傾斜部材６２の下傾面６２ｂの傾斜角度としては、例えば床面に対して３０°～８０°程度とされる。すなわち、下傾面６２ｂは、図４に示すように、背面板部材６から段差がなく、前端部６２ｃまで一様な傾斜面を形成している。そして、下傾面６２ｂは、座部３と背凭れ部４との間に形成される隙間Ｓの下方に位置している。 The angle of inclination of the lower inclined surface 62b of the inclined member 62 is, for example, about 30° to 80° with respect to the floor surface. That is, as shown in FIG. 4, the lower inclined surface 62b has no step from the back plate member 6 and forms a uniform inclined surface up to the front end 62c. The lower inclined surface 62b is located below the gap S formed between the seat portion 3 and the backrest portion 4.

傾斜部材６２の前端部６２ｃは、床面Ｆから例えば数ｍｍ～２０ｍｍの範囲で離間している。
また、傾斜部材６２の下面６２ａ側に形成される閉塞空間Ｒは、床面Ｆとの間において、後方に向かって次第に大きくなる側面視三角形状の空間となっている。 The front end portion 62c of the inclined member 62 is spaced apart from the floor surface F by, for example, a range of several mm to 20 mm.
Further, the closed space R formed on the lower surface 62a side of the inclined member 62 is a triangular space in side view that gradually becomes larger toward the rear between it and the floor surface F.

次に、上述した椅子１の作用について、図面に基づいて詳細に説明する。
図１に示すように、本実施形態では、背凭れ部４の背面板部材６の外周縁部に外側方に向けて下傾する平坦面を形成する第一連結辺６５を有しているので、とくに劇場や講堂等の施設に設置される椅子１に採用された場合には、背面板部材６の第一連結辺６５に形成された平坦面に利用者の手（図２に示す符号Ｈ）を一時的に載置する部位として機能させることができる。
したがって、利用者の手Ｈから入力された荷重は、第一連結辺６５の平坦面に対して直交する方向（矢印Ｐ）に作用することとなる。すなわち、例えばリング状の手掛け部材を椅子の背凭れ部の背面板部材に形成した場合のように、背面板部材を厚さ方向に揺さぶる力が発生しにくくなり、また利用者の荷物が引っ掛かることを防止することができる。 Next, the function of the chair 1 described above will be explained in detail based on the drawings.
As shown in FIG. 1, in this embodiment, the outer peripheral edge of the back plate member 6 of the backrest portion 4 has a first connecting side 65 that forms a flat surface that slopes downward toward the outside. In particular, when the chair 1 is installed in a facility such as a theater or an auditorium, the user's hand (symbol H shown in FIG. ) can function as a temporary placement site.
Therefore, the load input from the user's hand H acts in a direction (arrow P) perpendicular to the flat surface of the first connecting side 65. That is, for example, when a ring-shaped handle member is formed on the back plate member of the back of a chair, the force that shakes the back plate member in the thickness direction is less likely to be generated, and the user's luggage is less likely to get caught. can be prevented.

また、本実施形態では、背面板部材６において上辺６３の外側端部６３ａは椅子１の設置面である床面Ｆからの高さが上辺６３の他の部分（水平辺６３Ａ）よりも高い位置であることから、椅子１の全体形状として背面板部材６の上辺６３の角の部分が反り上がるような形状となる。つまり、その角の部分である外周縁部に位置する平坦面を形成する第一連結辺６５に視覚的特徴を付与することによって、例えば椅子の左右方向Ｘ１に設けられる通路を通る利用者から視認し易くなる。 In the present embodiment, the outer end 63a of the upper side 63 of the back plate member 6 is located at a position where the height from the floor F, which is the installation surface of the chair 1, is higher than the other part of the upper side 63 (horizontal side 63A). Therefore, the overall shape of the chair 1 is such that the corner portions of the upper side 63 of the back plate member 6 are curved upward. In other words, by giving a visual feature to the first connecting side 65 forming a flat surface located at the outer peripheral edge, which is a corner part, it is visible to a user who passes through a passage provided in the left-right direction X1 of the chair, for example. It becomes easier to do.

さらに、本実施形態では、上辺６３の外側端部６３ａが第二連結辺６３Ｂを介して水平辺６３Ａに連設しているので、背面板部材６の外周縁部により大きな視覚的特徴を付与することができる。したがって、背面板部材６の外周縁部に形成される第一連結辺６５がより視認し易くなる利点がある。
しかも、上辺６３の水平辺６３Ａと外側端部６３ａとを連接する第二連結辺６３Ｂが湾曲した形状となり、上辺６３に所定の角度をもった屈曲部が形成されなくなる。そのため、とくに劇場・講堂に設置される椅子１に採用された場合において、第一連結辺６５に手Ｈを載置した後、上辺に手Ｈを沿わせながら移動する際に、手Ｈに加わる衝撃を小さくすることができ、利用者の移動をより好適なものとすることができる。 Furthermore, in this embodiment, since the outer end 63a of the upper side 63 is connected to the horizontal side 63A via the second connecting side 63B, a greater visual feature is imparted to the outer peripheral edge of the back plate member 6. be able to. Therefore, there is an advantage that the first connecting side 65 formed on the outer peripheral edge of the back plate member 6 becomes easier to visually recognize.
Moreover, the second connecting side 63B that connects the horizontal side 63A of the upper side 63 and the outer end 63a has a curved shape, so that the upper side 63 does not have a bent part with a predetermined angle. Therefore, especially when adopted for the chair 1 installed in a theater or auditorium, after placing the hand H on the first connecting side 65, when moving while placing the hand H along the upper side, it is difficult to apply any force to the hand H. The impact can be reduced, and the movement of the user can be made more convenient.

また、本実施形態では、背面板部材６の上辺６３と側辺６４とが背当部材４０から外側に張り出しているので、利用者に背面板部材６が視認し易くなり、背面板部材６の外周縁部に形成される第一連結辺６５の位置や形状が瞬時に視認することが可能となる。 Further, in this embodiment, since the upper side 63 and the side sides 64 of the back plate member 6 protrude outward from the back support member 40, the back plate member 6 is easily visible to the user. It becomes possible to instantly visually recognize the position and shape of the first connecting side 65 formed on the outer peripheral edge.

上述のように本実施の形態による椅子では、劇場や講堂といった施設で利用される椅子１において、通路を経由して着座したい椅子１に安全にアプローチすることが可能とする手掛かりを有することができる。 As described above, in the chair 1 according to the present embodiment, the chair 1 used in a facility such as a theater or an auditorium can have a clue that allows the user to safely approach the chair 1 in which the user wants to sit via the aisle. .

以上、本発明による椅子の実施の形態について説明したが、本発明は上記の実施の形態に限定されるものではなく、その趣旨を逸脱しない範囲で適宜変更可能である。 Although the embodiments of the chair according to the present invention have been described above, the present invention is not limited to the above embodiments, and can be modified as appropriate without departing from the spirit thereof.

例えば、図１２及び図１３に示す変形例による連結椅子１Ｂは、背凭れ部４の背面板部材６の側方部が椅子１に対して左右方向Ｘ１に大きく張り出した形状となっていて、椅子１から側辺６４側に張出し部６４Ａを有する構成となっている。この場合の連結椅子１Ｂにおいても、上述した各椅子１の構成、すなわち背凭れ部４の背面板部材６の形状についても同様の構成とすることができる。つまり、上述した実施の形態の連結椅子１Ａと、変形例による連結椅子１Ｂとが前後方向Ｘ２に配置されることで、椅子１の配置としては前後の連結椅子１Ａ，１Ｂで左右方向Ｘ１に交互に位置するため、前側の着座者の頭で正面が隠れることのないように配置できる。そして、連結椅子１Ｂにおいて背面板部材６に大きな張出し部６４Ａを設けることで、前後に配置される大きな張出し部６４Ａの無い連結椅子１Ａの側辺６４の位置を一致させることができ、連結椅子１Ａ、１Ｂの横の通路幅を一定することができる。 For example, in a connected chair 1B according to a modified example shown in FIGS. 12 and 13, the side portions of the back plate member 6 of the backrest portion 4 are shaped to greatly protrude from the chair 1 in the left-right direction It has a configuration in which an overhang portion 64A is provided on the side 64 side from 1. In the connected chair 1B in this case, the configuration of each chair 1 described above, that is, the shape of the back plate member 6 of the backrest portion 4 can also be configured in the same manner. That is, the connected chair 1A of the embodiment described above and the connected chair 1B according to the modified example are arranged in the front-rear direction X2, so that the front and rear connected chairs 1A and 1B are arranged alternately in the left-right direction X1. Because it is located in the front, it can be positioned so that the front of the seat is not obscured by the head of the person seated in the front. By providing the large overhanging portion 64A on the back plate member 6 in the connected chair 1B, the positions of the side sides 64 of the connected chair 1A without the large overhanging portion 64A disposed in the front and rear can be aligned, and the connected chair 1A , 1B can be kept constant.

また、本実施の形態では、連結面に荷重が入力されることから背面板部材６を強度部材としているが、これに限定されることはない。例えば、手前に剛性の大きなインナーシェルがあるような構造の場合には、背面板部材は単なるカバーであってもかまわない。 Furthermore, in the present embodiment, the back plate member 6 is used as a strength member because a load is input to the connecting surface, but the present invention is not limited to this. For example, in the case of a structure in which there is a highly rigid inner shell on the front side, the back plate member may be simply a cover.

その他、本発明の趣旨を逸脱しない範囲で、上記した実施の形態における構成要素を周知の構成要素に置き換えることは適宜可能である。 In addition, it is possible to appropriately replace the components in the above-described embodiments with well-known components without departing from the spirit of the present invention.

１椅子
２脚部
３座部
３Ａ使用姿勢
３Ｂ収納姿勢
４背凭れ部
５肘掛部
６背面板部材
２０サイドパネル
２２起立板
６３上辺
６３ａ外側端部
６３Ａ水平辺
６３Ｂ第二連結辺
６４側辺
６５第一連結辺
６６背面上部
Ｆ床面（設置面）
Ｒ閉塞空間
Ｘ１左右方向（幅方向）
Ｘ２前後方向（奥行方向） 1 Chair 2 Legs 3 Seat 3A Usage posture 3B Storage posture 4 Backrest 5 Armrest 6 Rear plate member 20 Side panel 22 Upright plate 63 Upper side 63a Outer end 63A Horizontal side 63B Second connecting side 64 Side side 65 No. One connecting side 66 Upper back F Floor surface (installation surface)
R Closed space X1 Left and right direction (width direction)
X2 Front-rear direction (depth direction)

Claims

a back support member that comes into contact with the back of the seated person;
A chair comprising: a back plate member disposed on the back side in the depth direction of the back support member and supporting the back support member from the back side in the depth direction;
The back plate member is
The upper side and
a side edge located on the outer side of the upper edge in the width direction intersecting the depth direction of the chair;
The outer end of the upper side is at a position where the height from the installation surface of the chair is higher than other parts of the upper side,
The back plate member has the upper side and the side sides protruding above and to the sides of the back support member, respectively;
An outer end of the upper side is provided at a corner of the protruding upper side and the side edge ,
The chair is characterized in that the upper side is gradually curved upward from the widthwise central part toward the outer edge, and the outer edge is located on the outer side of the back support member in the width direction.

a back support member that comes into contact with the back of the seated person;
a back plate member disposed on the back side in the depth direction of the back support member and supporting the back support member from the back side in the depth direction , a plurality of chairs are arranged in a width direction intersecting the depth direction of the chair. Constructing a connected connected chair,
The back plate member is
The upper side and
a side edge located further outward than the upper edge in the width direction;
The outer end of the upper side is at a position where the height from the installation surface of the chair is higher than other parts of the upper side,
The outer end of the upper side is arranged on both sides of the connected chair in the width direction ,
The chair is characterized in that the upper side is gradually curved upward from the widthwise central part toward the outer edge, and the outer edge is located on the outer side of the back support member in the width direction.

The chair according to claim 1 or 2, comprising a pair of legs that stand apart from each other in the width direction and stand up on a floor surface, and a seat that is arranged between the pair of legs. .

The chair according to claim 3, wherein the back plate member is fixed to the pair of legs.

5. The chair according to claim 3, wherein the lower ends of the pair of legs are located forward of the upper end of the back plate member.

6. The chair according to claim 1, wherein the upper end of the side edge is located at a lower position than the outer end of the upper edge.

7. The back plate member includes a first connecting side that connects an upper end of the side and an outer end of the upper side. Chair.

The chair according to any one of claims 1 to 7, wherein the upper side is curved gradually upward from a horizontal part extending in the horizontal direction toward the outer end. .

The chair according to any one of claims 1 to 8, wherein the back plate member covers the entire surface of the back support member from behind.