JP2550968Y2 - Chair - Google Patents

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【産業上の利用分野】本考案は、主に国際会議やコンサ
ートなどが開催される多目的ホールに設置利用される椅
子に関し、特に不要時には折畳んで床下等に格納する議
場用などの椅子に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chair used in a multipurpose hall for holding international conferences and concerts, and more particularly to a chair for a conference hall which is folded and stored under the floor when not needed.

【０００２】[0002]

【従来の技術】近年、情報社会における多彩な情報の交
換や国際社会の交流のために、様々な重要な会議が開催
されている。そうした会議場には簡易な椅子よりも、比
較的座や背凭れが厚めで幅や高さ並びに奥行きが大きい
重厚な議場用椅子を会議机（テーブル）と共に広くゆっ
たりとしたスペースでもって設置している場合が多い。
しかし、そうした議場用椅子と会議机とを実際に利用す
る時間は、会議の開催期間中においても或いは年間を通
した会議日程を見ても少ないのが現状で、その会議場を
他の各種集会や演劇・コンサートなどの催しに活用した
いが、前述の如くゆったりと議場用椅子や会議用机を設
置した状態では集客力が少ないので、それら議場用椅子
や会議机を床下などに簡単に格納し、その代わりに劇場
用などの椅子を多数配列できる多目的ホールの実現が強
く望まれている。2. Description of the Related Art In recent years, various important conferences have been held for the exchange of various kinds of information in the information society and exchanges with the international community. In such conference halls, rather than simple chairs, seats and backrests are relatively thick, and wide, high and deep chairs for conference halls are installed together with conference tables (tables) in a spacious and spacious space. There are many cases.
However, the time to actually use such a chair for a conference room and a conference desk is very small even during the period of the conference or when looking at the conference schedule throughout the year. We would like to use it for events such as theater and concerts, but as mentioned above, if the chairs and conference desks are set loosely, the ability to attract customers is low, so we can easily store the chairs and conference tables under the floor etc. Instead, there is a strong demand for a multipurpose hall in which a large number of chairs for theaters and the like can be arranged.

【０００３】[0003]

【考案が解決しようとする課題】ところで、そうした場
合、大形で重厚な議場用椅子を床下に収納するためには
コンパクト（薄形）に折畳まなければならないが、その
折畳み技術として、従来一般のホールや体育館等に設置
された比較的軽薄の観覧用椅子の折畳み方式を適応する
のは困難であった。つまり、座並びに肘掛けが厚く大形
であって、それらを単なる固定の枢軸を中心として起立
回動しても全体を薄く折畳めないこと、また重厚で且つ
本格的な議場用椅子の要求から、着座向きを自由に変更
できる回転機能や、後傾して軽い休息姿勢を取れるロッ
キング機能が付加されている場合が多く、これら機能が
折畳み機構を設けることで阻害されてしまこと、構成が
非常に複雑化してコスト高を招くことなど各種問題が多
い。[Problems to be Solved by the Invention] In such a case, in order to store a large and heavy chair for a conference room under the floor, it must be folded compactly (thin). It has been difficult to adapt the folding system of relatively light and light viewing chairs installed in general halls and gymnasiums. In other words, the seats and armrests are thick and large, and they cannot be folded thinly even when they are turned upright about a simple fixed axis. In many cases, a rotation function that allows the user to freely change the seating direction and a locking function that allows the user to lean backward to take a light resting position are often added.These functions are impeded by the provision of the folding mechanism, and the configuration is extremely low. There are many problems such as complicated and complicated cost.

【０００４】本考案は前記事情に鑑みなされ、その目的
とするところは、座並びに肘掛けが大形であっても、そ
れらを一体的に押上回動して簡単に起立させて全体を薄
く折畳め、床下等に格納するのに具合が良くなると共
に、使用状態では着座者が座などをいちいち倒す必要が
なく、折畳み椅子の意識を持たせない重厚な使用感が得
られる椅子を提供することにある。The present invention has been made in view of the above-mentioned circumstances, and the object is that even if the seat and the armrest are large, they are integrally pushed up and rotated to easily stand up, and the whole is thinly folded. To provide a chair that can be stored under the floor, etc. so that it can be stored well, and in use, it is not necessary for the occupant to fall down the seat, etc. It is in.

【０００５】また、座と肘掛けを起立回動させて折畳む
方式でありながら、着座向きを自由に変更できる回転機
能や、後傾して軽い休息姿勢を取れるロッキング機能を
付加しても、これら機能が使用状態では何ら規制を受け
ることがなく、多機能を持つ折畳み方式の本格的な議場
用椅子を提供可能とすることにある。更には、多機能を
持つ折畳み方式の本格的な議場用椅子であっても、構成
の簡略化が図れてコストの低減を可能とすることにあ
る。[0005] Further, even though the seat and the armrests are folded upright and rotated, a rotation function that can freely change the seating direction and a locking function that can be tilted backward to take a light resting position are added. It is an object of the present invention to provide a full-fledged multi-function chair for a conference hall without any restrictions in use. Furthermore, even in the case of a full-scale multi-function folding chair for a conference hall, the configuration can be simplified and the cost can be reduced.

【０００６】[0006]

【課題を解決するための手段と作用】本考案の椅子は、
前記目的を達成するために、脚上に背座支持枠を設け、
この背座支持枠上に背凭れを取付けると共に、座と肘掛
けとを一体的に前記背座支持枠に対しリンクやスライド
等のガイド機構を介し起立・転倒可能に設け、かつ押上
動作により前記ガイド機構を介し座と肘掛けとを後方に
起立回動させて折畳み、逆に引下げ動作によりガイド機
構を介し座と肘掛けとを前方に転倒させて背座支持枠上
に略水平に展開すると共に該ガイド機構から下方に離脱
する座起倒駆動機構を前記脚内に設けて構成したことを
特徴とする。Means and action for solving the problem The chair of the present invention is:
To achieve the above object, a back support frame is provided on the legs,
A backrest is mounted on the backrest support frame, and a seat and an armrest are integrally provided on the backrest support frame via a guide mechanism such as a link or a slide so that the seat and the armrest can be turned upside down. The seat and the armrest are turned upright and pivoted rearward through the mechanism to be folded, and conversely, the seat and the armrest are overturned forward through the guide mechanism by a pulling-down operation, so that the seat and the armrest are deployed substantially horizontally on the back seat support frame, and A seat tilting drive mechanism detaching downward from the mechanism is provided in the leg, and is configured.

【０００７】これにて、議場用椅子の如く座並びに肘掛
けが大形であっても、座起倒駆動機構が押上動作してガ
イド機構を介し座と肘掛けとを一体的に押上げながら後
方に起立回動させて折畳め、前後幅が全体的に薄くな
り、床下等に格納するのに具合良くなると共に、逆に座
起倒駆動機構が引下げ動作すると前記ガイド機構を介し
座と肘掛けとを一体的に引下げながら前方に転倒させて
背座支持枠上に略水平に展開でき、これにて着座可能な
使用状態が得られ、この使用状態では着座者が座などを
いちいち倒す必要がなく、折畳み椅子の意識を持たせな
い重厚な使用感が得られるようになる。Thus, even if the seat and the armrest are large, such as a chair for a conference hall, the seat raising / lowering drive mechanism performs a push-up operation, and pushes the seat and the armrest together through the guide mechanism to move the seat and the armrest rearward. When the seat is turned upright and folded, the front and rear width becomes thinner overall, it becomes easier to store it under the floor, etc., and conversely, when the seat raising / lowering driving mechanism is lowered, the seat and the armrest are moved through the guide mechanism. Can be deployed almost horizontally on the back seat support frame while pulling down, so that the seat can be used in a usable state.In this use state, the occupant does not need to lean down the seat. In addition, a profound feeling of use can be obtained without having to consider the folding chair.

【０００８】またその使用状態では座起倒駆動機構がガ
イド機構から下方に離脱してしまうので、着座向きを自
由に変更できる回転機能や、後傾して軽い休息姿勢を取
れるロッキング機能を付加しても、これら機能が使用状
態では前記座起立駆動機構などに何ら規制を受けること
がなく、多機能を持つ折畳み方式の本格的な議場用椅子
を得ることが可能となる。[0008] In addition, in the state of use, since the seat raising / lowering drive mechanism is detached downward from the guide mechanism, a rotation function for freely changing the seating direction and a locking function for tilting backward to take a light resting posture are added. However, when these functions are in use, there is no restriction on the sitting-up drive mechanism or the like at all, and it is possible to obtain a full-fledged folding chair with multiple functions.

【０００９】その多機能を持つ折畳み方式の本格的な議
場用椅子は、前記ガイド機構を介し座と肘掛けとを押上
並びに引下げ動作するための押上ロッドを有する座起倒
駆動機構を用い、一方脚の上部に垂直な回転軸筒を介し
回転可能に支持枠受台を設け、この支持枠受台に背座支
持枠を水平軸とロッキング用ばねを介しロッキング動可
能に支持し、かつ前記回転軸筒内に前記座起倒駆動機構
の押上ロッドを上下動可能に挿通することで簡単に実現
可能となる。The multifunctional folding chair for a full-fledged conference hall uses a seat-up / down drive mechanism having a push-up rod for pushing up and down the seat and the armrest via the guide mechanism. A support frame support is provided rotatably through a vertical rotary shaft cylinder on the upper part of the support frame, and the back seat support frame is movably supported on the support frame support via a horizontal shaft and a locking spring, and the rotation shaft is This can be easily realized by vertically inserting the push-up rod of the seat raising / lowering drive mechanism into the cylinder.

【００１０】また、その際、前記座起倒駆動機構の押上
ロッドが上昇移動して、ガイド機構を介し座と肘掛けと
を押上げながら後方に回動させて起立状態に折畳むと共
に、該ガイド機構を介し背座支持枠の水平回転並びにロ
ッキング動を規制するロック機能を有する構成とするこ
とで、折畳み状態では座や肘掛けや背凭れが水平回転や
ロッキング動しなくなるので、床下等への格納動作がや
り易くなる。更に、前記ロッキング用の水平軸をガイド
機構のリンクの支持軸と兼用することで、構成の簡略化
が図れてコストの低減が可能となる。Further, at this time, the push-up rod of the seat raising / lowering drive mechanism moves upward, and turns upward while pushing up the seat and the armrest via the guide mechanism, thereby folding the seat and the armrest upright. By having a lock function that regulates the horizontal rotation and the rocking movement of the back support frame through the mechanism, the seat, armrest and backrest do not rotate horizontally or rock in the folded state, so they can be stored under the floor etc. Operation becomes easier. Further, by using the horizontal shaft for locking as a support shaft for the link of the guide mechanism, the configuration can be simplified and the cost can be reduced.

【００１１】[0011]

【実施例】以下、本考案の一実施例を図面に従って説明
する。まず図５乃至図８は多目的ホール１の床面上のレ
イアウトを示している。その図５および図６は該多目的
ホール１の床面上に多数の会議用机（長テーブル）２と
重厚な議場用椅子３とを配列した議場モードのレイアウ
トの一例である。図７および図８は演劇・コンサートな
ど各種催し物に応じて集客力を多くすべく該多目的ホー
ル１の床面上に多数の劇場用椅子４を配列した劇場モー
ドのレイアウトの一例である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. 5 to 8 show layouts of the multipurpose hall 1 on the floor. 5 and 6 show an example of a layout in a hall mode in which a large number of conference desks (long tables) 2 and heavy hall chairs 3 are arranged on the floor of the multipurpose hall 1. FIGS. 7 and 8 show an example of a theater mode layout in which a large number of theater chairs 4 are arranged on the floor of the multipurpose hall 1 in order to increase the ability to attract customers according to various events such as plays and concerts.

【００１２】前記議場モードと劇場モードを同一空間で
自動的に切り換えできるように、まず、前記ホール１の
床は前後複数段に分割した昇降床５とされ、これら各段
の昇降床５がそれぞれ油圧やモータ等の駆動源を利用し
たリフト装置（図示せず）により平坦な状態から個々に
適当高さに上昇して全体的に雛段状に配列するようにな
っている。これら各昇降床５は上面に開閉可能な床板を
有する箱形枠状をなすと共に、各々の内部に前後に２分
割した縦長な格納部５ａ，５ｂを有している。First, the floor of the hall 1 is made up of a plurality of raised and lowered floors 5 which are divided into front and rear stages so that the floor mode and the theater mode can be automatically switched in the same space. A lift device (not shown) using a drive source such as a hydraulic pressure or a motor is individually raised from a flat state to an appropriate height and arranged as a whole in a tiered manner. Each of these lifting floors 5 has a box-like frame shape having a floor plate that can be opened and closed on the upper surface, and has vertically long storage sections 5a and 5b divided into two in the front and rear.

【００１３】こうした各段の昇降床５の各前後格納部５
ａ，５ｂ内に前記会議用机２と議場用椅子３と劇場用椅
子４が格納可能に設置されている。つまり、最前段の昇
降床５の前列の格納部５ａに会議用机２が格納され、そ
の後列の格納部５ｂには劇場用椅子４が格納され、次の
後段の昇降床５の前列の格納部５ａには議場用椅子３が
格納され、その後列の格納部５ｂには劇場用椅子４が格
納されていると言った具合に、会議用机２、劇場用椅子
４、議場用椅子３、劇場用椅子４の順列で繰り返して最
後段まで配列されている。即ち、劇場用椅子４の前後配
列間隔を基準とする一方、この劇場用椅子４の２列分に
対し会議用机２と議場用椅子３とを一列ずつ配列して広
くゆったりとした議場スペースが得られるようにしてい
る。Each of the front and rear storage sections 5 of the lifting floor 5 of each stage.
The conference desk 2, the conference room chair 3, and the theater chair 4 are installed so as to be stored in a and 5b. That is, the conference desk 2 is stored in the storage unit 5a in the front row of the frontmost elevator floor 5, the theater chair 4 is stored in the storage unit 5b in the subsequent row, and the front row storage of the next rear elevator floor 5 is stored. The conference chair 2, the theater chair 4, the conference chair 3, the chair 5 for the conference, etc. are stored in the section 5a. The theater chairs 4 are repeatedly arranged in a permutation to the last stage. That is, on the basis of the front-to-back arrangement interval of the theater chairs 4, the conference desks 2 and the chairs 3 are arranged one by one for two rows of the theater chairs 4. I am getting it.

【００１４】それら各列の会議用机２と議場用椅子３並
びに劇場用椅子４は必要に応じ各々の格納部５ａ，５ｂ
内からそれぞれ昇降駆動機構（図示せず）により垂直に
床面上に押し上げられたり床面下側に格納されるように
なっている。その会議用机２と議場用椅子３を各の格納
部５ａ内から床面上に押し上げることにより図５および
図６に示す如く広くゆったりとした議場モードのレイア
ウトが得られ、それら会議用机２と議場用椅子３を格納
部５ａ内の床面下側に格納し、代わりに劇場用椅子４を
各々の格納部５ｂ内から床面上に押し上げることにより
図７および図８に示す如く多数の観客を着席させること
ができる多くの集客力を持つ劇場モードのレイアウトが
得られるようになっている。The conference desk 2, the conference chair 3 and the theater chair 4 in each row are provided with respective storage sections 5a and 5b as required.
Each of them is vertically pushed up on the floor surface by a lifting drive mechanism (not shown) or stored under the floor surface. By pushing up the conference table 2 and the conference room chair 3 from the inside of each storage section 5a onto the floor, a wide and spacious layout of the conference room mode as shown in FIGS. 5 and 6 is obtained. And the chairs 3 for the conference hall are stored under the floor in the storage section 5a, and instead the chairs 4 for the theater are pushed up from the inside of each storage section 5b onto the floor, thereby providing a large number of chairs as shown in FIGS. A theater mode layout with a lot of attracting power that can seat a spectator can be obtained.

【００１５】前記劇場用椅子４は、従来一般のホールや
体育館等に設置された比較的軽薄の観覧用連結椅子で、
周知の座跳ね上げ機構（図示せず）を用いて座を自動的
に起立させて、全体的に薄形に折畳み、そのまま昇降床
５の格納部５ｂ内に垂直に引き込んで格納される。The chair for theater 4 is a comparatively light and light connecting chair for viewing, which is conventionally installed in a general hall or gymnasium.
The seat is automatically erected using a well-known seat flip-up mechanism (not shown), is folded into a thin shape as a whole, and is retracted vertically and stored in the storage portion 5b of the elevating floor 5 as it is.

【００１６】一方、前記議場モードに利用される会議用
机２は、図４に拡大して示す如く長テーブルで、会議場
にふさわしく、たくさんの資料や書類を広げたりワイヤ
レス受信機等を置いたりするのに十分な奥行きスペース
を持つ天板２ａを有する構成であり、その天板２ａは水
平な使用状態から図示右側に示す如く垂直に起立回動で
きて、そのまま前記昇降床５の格納部５ａ内に垂直に引
き込んで格納できるようになっている。On the other hand, the conference desk 2 used in the conference room mode is a long table as shown in an enlarged view in FIG. 4, and is suitable for the conference room. The top plate 2a has a depth space sufficient to perform the operation, and the top plate 2a can be vertically erected from a horizontal use state as shown on the right side in the drawing, and the storage portion 5a of the elevating floor 5 as it is. It can be pulled in vertically and stored.

【００１７】前記議場モードに会議用机２と共に利用さ
れる議場用椅子３は、図４に示す如く議場にふさわしい
大型で重厚な単体椅子である。つまり背凭れ１０や座１
１および左右の肘掛け１２がかなり厚めで、幅や高さ並
びに奥行きが大きい椅子であり、着座者がゆったり楽に
着座できると共に、その背凭れ１０と座１１の角度が着
座者の会議姿勢を考慮して適当に設定されている。また
本格的な椅子をめざして、その座席への着座者の出入り
や着座向きを自由に変更できるように回転機能並びにそ
の正面への回動復帰のためのオートリターン機能や、後
傾して軽い休息姿勢を取れるロッキング機能が付加され
ている。The meeting room chair 3 used together with the meeting desk 2 in the above-mentioned meeting room mode is a large and heavy single chair suitable for a meeting room as shown in FIG. In other words, the backrest 10 and the seat 1
1 and the armrests 12 on the left and right sides are quite thick and have a large width, height and depth, so that the seated person can sit comfortably and comfortably, and the angle between the backrest 10 and the seat 11 is determined in consideration of the sitting posture of the seated person. Is set appropriately. Also, with the aim of becoming a full-fledged chair, a rotation function and an auto return function for returning to the front of the seat, and a lightly tilted rearward, so that the seated person can freely change the entering and exiting and sitting direction of the seat. A locking function to take a resting posture has been added.

【００１８】こうした大形で重厚な本格的な議場用椅子
３は、このままでは大きすぎて前記昇降床５の格納部５
ａ内に格納できないので、図４の右側に示す如く座１１
と左右肘掛け１２とが一体的に押上回動して起立状態に
折り畳まれ、その状態で前記昇降床５の格納部５ａ内に
垂直に引き込まれて格納されるようになっていると共
に、前記劇場用椅子４を会議用机２と議場用椅子３との
列の間の格納部５ｂに配列した関係上、この議場用椅子
３は格納部５ａ内から垂直に押し上げられて展開された
だけでは、前記会議用机２に対し離れ過ぎで筆記作業等
に難があるので、図４の左側に示す如く脚１３が前傾し
て会議用机２に接近する機能を有している。Such a large and heavy full-scale chair for a conference hall 3 is too large as it is,
a, as shown on the right side of FIG.
And the left and right armrests 12 are integrally pushed up and turned to be folded into an upright state, in which state they are retracted vertically into the storage section 5a of the elevating floor 5 and stored therein. Due to the arrangement of the chairs 4 in the storage 5b between the rows of the conference desks 2 and the chairs 3 for the conference, the chairs 3 for the conference only need to be vertically pushed up from the storage 5a and deployed. Since it is too far away from the conference desk 2 to perform a writing operation or the like, the leg 13 has a function of leaning forward and approaching the conference desk 2 as shown on the left side of FIG.

【００１９】ここで、前述した議場用椅子３の各種機能
を達成する機構を図１乃至図３により説明する。まず、
背凭れ１０は左右下部に取付フレーム１０ａ（図３参
照）をそれぞれ垂下状態に突設し、この取付フレーム１
０ａを脚１３上に支持した背座支持枠１５上面後部の左
右一対の支持筒１６に上方から差し込み嵌合すること
で、やや後傾状態に立設固定されている。一方、座１１
とこの左右の肘掛け１２とは予め一体に結合されて前記
背座支持枠１５上に載置され、ガイド機構１７を介し起
立・転倒可能に設けられている。Here, a mechanism for achieving the various functions of the above-mentioned conference room chair 3 will be described with reference to FIGS. First,
The backrest 10 has mounting frames 10a (see FIG. 3) projecting from the left and right lower portions, respectively, in a hanging state.
Oa is inserted and fitted from above into a pair of left and right support cylinders 16 at the rear of the upper surface of the back seat support frame 15 supporting the legs 13 on the legs 13, thereby being fixed upright in a slightly inclined state. Meanwhile, seat 11
The left and right armrests 12 are integrally combined in advance and placed on the back support frame 15, and are provided so as to be able to stand up and fall down via a guide mechanism 17.

【００２０】このガイド機構１７はリンクとスライドを
利用したもので、座１１の後端から平行に突設した左右
一対のリンク受け１８と、これらリンク受け１８に上端
をピン１８ａで枢支連結し且つ下端を前記背座支持枠１
５内を介し脚１３上部の支持枠受台１９の前端寄り部の
一本の水平軸２０に枢着した回動リンク２１と、前記背
座支持枠１５上の左右の支持角筒１６の各々の外側面に
軸着された左右一対のガイドコロ２２と、前記左右の肘
掛け１２の内側面後端寄り部に左右対称に形成され前記
左右のガイドコロ２２に各々摺嵌する上下方向に長尺な
スライド溝２３とで構成され、座１１とこの左右の肘掛
け１２とを一体的に図１の水平な展開状態から図２の垂
直な起立状態に回動可能に案内支持している。なお前記
回動リンク２１の下端寄り部には先端に略Ｖ字形溝を有
する短尺なフック部２１ａが後方に向け一体に突設され
ている。The guide mechanism 17 utilizes a link and a slide. A pair of left and right link receivers 18 projecting in parallel from the rear end of the seat 11, and the upper ends of the link receivers 18 are pivotally connected by pins 18a. And the lower end is the back support frame 1
5, a rotation link 21 pivotally connected to one horizontal shaft 20 near the front end of a support frame support 19 above the leg 13 and left and right support square tubes 16 on the back support frame 15. A pair of left and right guide rollers 22 pivotally mounted on the outer surface of the left and right armrests 12, formed in left and right symmetrical portions near the rear end of the inner surface of the armrest 12, and elongated in the up and down direction and slidingly fitted to the left and right guide rollers 22. The seat 11 and the left and right armrests 12 are rotatably guided and supported integrally from the horizontal unfolded state in FIG. 1 to the vertically upright state in FIG. A short hook portion 21a having a substantially V-shaped groove at the tip is integrally provided rearward and protruding from the lower end portion of the rotation link 21.

【００２１】前記背座支持枠１５は略方形枠状のもの
で、後端左右部に張出し部１５ａを有し、この上に前記
左右の支持角筒１６を立設している。またこの背座支持
枠１５は前記脚１３上部の支持枠受台１９に上から緩く
被さるように配設され、かつその両者の左右側板部の前
端寄り部に貫通する前記一本のリンク支持軸である水平
軸２０により枢着支持されていると共に、その両者の後
部寄りに設けたばね受け１５ｂ，１９ａ間に介在したロ
ッキング用ばね２４により受けられて、このばね２４に
抗し背座支持枠１５が背凭れ１０と座１１と肘掛け１２
と共に水平軸２０を支点に図４の想像線で示す如くロッ
キング動（後傾動作）可能となっている。The back seat support frame 15 has a substantially rectangular frame shape and has overhangs 15a at the right and left rear ends, on which the left and right support square tubes 16 are erected. The back seat support frame 15 is disposed so as to loosely cover the support frame support 19 above the leg 13 from above, and the one link support shaft penetrates the front end portions of the left and right side plate portions of both. , And is received by a locking spring 24 interposed between spring supports 15b and 19a provided near the rear of the horizontal shaft 20, and the back seat support frame 15 is opposed to the spring 24. Is a backrest 10, a seat 11, and an armrest 12
In addition, a rocking movement (backward tilting operation) is possible with the horizontal axis 20 as a fulcrum as shown by an imaginary line in FIG.

【００２２】また、前記脚１３は、この上部の前述した
支持枠受台１９と、これを回転軸筒２５を介し水平回転
可能に下側から支持する上部ベース２６と、この上部ベ
ース２６を下側から支持する前後左右一対ずつの平行リ
ンク２７，２８と、これら平行リンク２７，２８を支持
する下部ベース２９とで構成されている。The legs 13 are provided with the above-mentioned support frame support 19 at the upper portion, an upper base 26 for supporting the support frame 19 from below via a rotary shaft cylinder 25 so as to be horizontally rotatable, and It comprises a pair of front and rear left and right parallel links 27 and 28 supported from the side, and a lower base 29 that supports these parallel links 27 and 28.

【００２３】つまり、最下端の下部ベース２９は台形枠
状のもので、前記昇降床５の格納部５ａ内の昇降駆動機
構（図示せず）により上下動せしめられる昇降台３０上
に固定され、この下部ベース２９の左右立ち上がり側板
部に前記前後左右一対ずつの平行リンク２７，２８の各
下端部がそれぞれピンを介し枢支連結される。前記上部
ベース２６は略正方形状の天板プレート２６ａの下側に
左右一対のリンク受けプレート２６ｂを有し、この左右
のリンク受けプレート２６ｂに前記前後左右一対ずつの
平行リンク２７，２８の各上端部がそれぞれピンを介し
枢支連結されて、該上部ベース２６が水平状態のまま前
後方向に平行移動可能に支持されている。なお、前記下
部ベース２９の左右立ち上がり側板部の内面上端寄りに
ストッパ３１がそれぞれ設けられ、これらと対向して前
記左右後側の平行リンク２８の途中内面部に衝止部材３
２がそれぞれ取付けられ、この衝止部材３２が該ストッ
パ３１に衝止することで平行リンク２７，２８の前傾移
動（上部ベースの２６の前進移動）が所定範囲内に規制
されている。That is, the lowermost lower base 29 at the lowermost end is formed in a trapezoidal frame shape, and is fixed on an elevating table 30 which can be moved up and down by an elevating drive mechanism (not shown) in the storage section 5a of the elevating floor 5, The lower end portions of the pair of front, rear, left and right parallel links 27 and 28 are pivotally connected to the right and left rising side plate portions of the lower base 29 via pins. The upper base 26 has a pair of left and right link receiving plates 26b below the substantially square top plate 26a, and the upper ends of the pair of front, rear, left and right parallel links 27, 28 are provided on the left and right link receiving plates 26b. The parts are pivotally connected via pins, and the upper base 26 is supported so as to be able to translate in the front-rear direction while being horizontal. Stoppers 31 are respectively provided near the upper ends of the inner surfaces of the left and right rising side plate portions of the lower base 29, and the stopper members 3 are provided on the middle surfaces of the left and right rear parallel links 28 in opposition thereto.
2 are attached, and the stopper member 32 collides with the stopper 31 to restrict the forward tilting movement (forward movement of the upper base 26) of the parallel links 27, 28 within a predetermined range.

【００２４】また前記上部ベース２６の天板プレート２
６ａの下側には左右のリンク受けプレート２６ｂより更
に内側に配して左右一対のガイドプレート２６ｃがそれ
ぞれ垂設され、これに垂直なガイド長穴２６ｄがそれぞ
れ形成されている。The top plate 2 of the upper base 26
A pair of left and right guide plates 26c are respectively provided vertically below the left and right link receiving plates 26b below the left and right link receiving plates 26b, and guide elongated holes 26d perpendicular thereto are formed respectively.

【００２５】更にその上部ベース２６の天板プレート２
６ａの略中央部には有底状の軸受け筒３３が上面に開口
して取付けれ、これに前記支持枠受台１９から垂下した
回転軸筒２５がスラストベアリング等を介在して回転自
在に嵌合され、これで該支持枠受台１９がその上側の背
座支持枠１５と背凭れ１０と座１１と肘掛け１２と共に
水平回転できるように支持されている。なお、その支持
枠台１９と上部ベース２６との相互間には該支持枠受台
１９を常に正面に向けるように付勢するオートリター機
構（図示せず）が設けられている。Further, the top plate 2 of the upper base 26
At the approximate center of 6a, a bottomed bearing cylinder 33 is mounted with an opening on the upper surface, and a rotating shaft cylinder 25 suspended from the support frame support 19 is rotatably fitted thereto through a thrust bearing or the like. Thus, the support frame receiving base 19 is supported so as to be able to rotate horizontally together with the upper back support frame 15, the backrest 10, the seat 11, and the armrest 12 on the upper side. An auto-litter mechanism (not shown) is provided between the support frame base 19 and the upper base 26 so as to always bias the support frame base 19 toward the front.

【００２６】前述した脚１３内に配して前記座１１と左
右の肘掛け１２をガイド機構１７を介し押上げながら後
方に回動して起立させたり逆に引下げながら前方に回動
して略水平な転倒状態に展開せしめる座起倒駆動機構３
５が設けられている。つまりこの座起倒駆動機構３５
は、前記昇降床５の格納部５ａ内の昇降台３０設けられ
て図示しないモータ等により回転駆動される駆動軸３６
と、この駆動軸３６から一体的に突設された回動レバー
３７と、この回動レバー３７の先端にピン３８を介し下
端を枢支連結した左右一対の駆動ロッド３９と、この駆
動ロッド３９の上端にスライドピン４０を介し下端を枢
支連結された押上ロッド４１とで構成されている。この
押上ロッド４１が前記脚１３の上部ベース２６の軸受け
筒３３の底部を貫通して回転軸筒２５内に垂直に上下動
可能に挿通され、かつこの押上ロッド４１の下端のスラ
イドピン４０の両端が前記上部ベース２６の左右のガイ
ドプレート２６ｃのガイド長穴２６ｄに摺嵌されて、常
に該押上ロッド４１が垂直状態で上下動するようになっ
ている。この押上ロッド４１の上端にＴ字形状の係合子
４１ａが設けられている。The seat 11 and the left and right armrests 12 are arranged in the above-mentioned legs 13 and are turned upright by pushing up through the guide mechanism 17 while being raised, or are turned upright while being pulled down and are substantially horizontal by being pulled down. Sit-down drive mechanism 3 for unfolding
5 are provided. In other words, this sitting-down drive mechanism 35
The drive shaft 36 is provided on the lift table 30 in the storage section 5a of the lift floor 5, and is driven to rotate by a motor (not shown).
A rotating lever 37 integrally protruding from the driving shaft 36; a pair of left and right driving rods 39 pivotally connected to the distal end of the rotating lever 37 via a pin 38; And a push-up rod 41 whose lower end is pivotally connected to the upper end via a slide pin 40. The push-up rod 41 penetrates the bottom of the bearing barrel 33 of the upper base 26 of the leg 13 and is vertically vertically movably inserted into the rotary barrel 25, and both ends of the slide pin 40 at the lower end of the push-up rod 41. Are slidably fitted in the guide long holes 26d of the left and right guide plates 26c of the upper base 26 so that the push-up rod 41 always moves up and down in a vertical state. At the upper end of the push-up rod 41, a T-shaped engaging element 41a is provided.

【００２７】そして前記モータ等による駆動軸３６の回
転駆動で、回動レバー３７と駆動ロッド３９を介し押上
ロッド４１を上昇移動させることにより、その上端の係
合子４１ａが前記ガイド機構１７の回動リンク２１のフ
ック部２１ａのＶ溝に下から係合して該リンク２１を押
上回動させる。これにて座１１の後部が回動リンク２１
に押し上げられると共に、背凭れ１２の後部のスライド
溝２３がガイドコロ２２に案内されて下降し、その座１
１と背凭れ１２とが一体のまま図２に示す如く押上げら
れながら後方に回動して起立状態に折畳まれる。その逆
に押上ロッド４１を下降移動させると、その上端の係合
子４１ａが回動リンク２１のフック部２１ａのＶ溝に係
合しながら該リンク２１を引き下げ回動させる。これに
て座１１の後部が回動リンク２１に引き下げられると共
に、背凭れ１２の後部のスライド溝２３がガイドコロ２
２に案内されて上昇し、その座１１と背凭れ１２とが一
体のまま図１に示す如く引き下げられながら前方に回動
して背座支持枠１５上に略水平な転倒状態に展開する。
この座１１の転倒時点より更に前記押上ロッド４１は下
降してガイド機構１７の回動リンク２１のフック部２１
ａから完全に下方に離脱する構成となっている。When the drive shaft 36 is rotated by the motor or the like, the push-up rod 41 is moved upward through the rotation lever 37 and the drive rod 39, so that the upper engaging member 41a rotates the guide mechanism 17 The link 21 is engaged with the V-groove of the hook portion 21a of the link 21 from below to rotate the link 21 upward. As a result, the rear portion of the seat 11 is
And the slide groove 23 at the rear of the backrest 12 is guided by the guide rollers 22 and descends.
As shown in FIG. 2, the backrest 1 and the backrest 12 are pivoted rearward while being pushed up and folded upright. Conversely, when the push-up rod 41 is moved downward, the engaging element 41a at the upper end engages with the V groove of the hook portion 21a of the rotating link 21 to pull down and rotate the link 21. As a result, the rear part of the seat 11 is pulled down by the rotation link 21 and the slide groove 23 at the rear part of the backrest 12 is
2, the seat 11 and the backrest 12 are pivoted forward while being lowered as shown in FIG. 1 and unfolded on the backrest support frame 15 in a substantially horizontal falling state.
The push-up rod 41 is further lowered from the time when the seat 11 falls, and the hook portion 21 of the rotation link 21 of the guide mechanism 17 is moved downward.
It is configured to be completely detached from a.

【００２８】また、前記座起倒駆動機構３５は、この押
上ロッド４１の上下動に連動してこの押上ロッド４１と
共に前記脚１３の上部ベース２６を平行リンク２７，２
８を介し前後動せしめように、該押上ロッド４１下端の
スライドピン４０に先端を枢支連結した前後動用レバー
４２が備えられ、この前後動用レバー４２の基端が前記
脚１３の下部ベース２９の左右立ち上がり側板部に横架
した支軸４３に回動可能に嵌合されている。つまり座起
倒駆動機構の押上ロッド４１が上昇移動してガイド機構
１７を介し座及び肘掛けを起立状態に折畳む時には、前
後動用レバー４２が前向き水平状態から上向きに回動し
てスライドピン４０を介し上部ベース２６を後方に引
き、これで前後左右の平行リンク２７，２８が後方回動
して脚１３が垂直な起立状態に保持される。逆に押上ロ
ッド４１が下降してガイド機構１７を介し座及び肘掛け
を水平に転倒して展開する時には、前記前後動用レバー
４２が上向き状態から前向き水平状態に回動してスライ
ドピン４０を介し上部ベース２６を前方に押し、これで
前後左右の平行リンク２７，２８が前方に回動して脚１
３が前傾状態に保持される。即ち、座及び肘掛けを水平
に転倒して展開した使用状態では、椅子が自動的に前進
して前側の会議用机２に適当な間隔まで接近せしめられ
最適なポジションを確保するようになっている。The raising / lowering drive mechanism 35 links the upper base 26 of the leg 13 together with the push-up rod 41 to the parallel links 27, 2 in conjunction with the vertical movement of the push-up rod 41.
A forward / backward movement lever 42 having a distal end pivotally connected to a slide pin 40 at the lower end of the push-up rod 41 is provided so that the forward / backward movement can be performed through the push rod 41. It is rotatably fitted to a support shaft 43 laid on the left and right rising side plate portions. That is, when the push-up rod 41 of the seat raising / lowering drive mechanism moves upward to fold the seat and the armrest in the upright state via the guide mechanism 17, the forward / backward movement lever 42 pivots upward from the front horizontal state to rotate the slide pin 40. The upper base 26 is pulled rearward, and the front, rear, left, and right parallel links 27, 28 are rotated rearward, and the leg 13 is held in a vertical standing state. Conversely, when the push-up rod 41 is lowered and the seat and armrest are horizontally turned down and deployed via the guide mechanism 17, the forward / backward movement lever 42 is turned from the upward state to the forward horizontal state, and is moved upward through the slide pin 40. The base 26 is pushed forward, whereby the front, rear, left and right parallel links 27, 28 rotate forward, and the leg 1
3 is held in the forward tilt state. That is, in the use state in which the seat and the armrests are horizontally turned down and deployed, the chair is automatically advanced to approach the meeting desk 2 on the front side to an appropriate distance to secure an optimal position. .

【００２９】なお、前記脚１３にはこの前後左右の平行
リンク２７．２８の前後面に保護プレート４４が取り付
けられ、この外周を取り囲むようにフレキシブルなカバ
ー４５が上部ベース２６と下部ベース２９のとの間に張
設されて、脚１３の外観意匠や安全性を保つようになっ
ている。A protective plate 44 is attached to the legs 13 on the front and rear surfaces of the front and rear parallel links 27 and 28. A flexible cover 45 surrounds the outer periphery of the upper and lower bases 26 and 29. The leg 13 is designed to maintain the appearance and safety of the leg 13.

【００３０】しかして、前述した構成の議場椅子３で
は、座１１並びに肘掛け１２が厚く大形であるにもかか
わらず、図２に示す如く座起倒駆動機構３５の駆動によ
り押上ロッド４１が上昇移動してガイド機構１７を介し
座１１と肘掛け１２とを一体的に押上げながら後方に回
動して簡単に起立させ、全体が薄く折畳められると共
に、その押上ロッド４１の上昇移動に連動して前後動用
レバー４２により脚１３が垂直状態に保持される。これ
で椅子３全体が前後幅の狭い垂直な折畳み状態となっ
て、そのまま真っ直ぐ下降して床下に格納するのに具合
が良くなる。Thus, in the chair 3 having the above-described structure, the push-up rod 41 is raised by the driving of the seat raising / lowering drive mechanism 35 as shown in FIG. 2, even though the seat 11 and the armrest 12 are thick and large. The seat 11 and the armrest 12 are moved upward through the guide mechanism 17 and are pivoted rearward while being lifted up as a unit so that the seat 11 and the armrest 12 are easily erected. Then, the leg 13 is held in a vertical state by the lever 42 for forward and backward movement. As a result, the entire chair 3 is in a vertically folded state with a narrow front-rear width, and it is convenient to descend straight and store it under the floor.

【００３１】前記とは逆に座起倒駆動機構３５の駆動に
より押上ロッド４１が下降移動すると、図１に示す如く
前記ガイド機構１７を介し座１１と肘掛け１２とを一体
的に引下げながら前方に回動させて背座支持枠１５上に
略水平な転倒状態に展開でき、これにて着座可能な使用
状態が得られる。この使用状態では、前記押上ロッド４
１の下降に連動して前後動用レバー４２により脚１３が
前傾状態に保持され、これで椅子３が前側の会議用机２
に適当な間隔まで接近せしめられ、着座者が筆記作業等
をす易くなる。またその使用状態では、着座者が座１１
などをいちいち倒す必要がなく、折畳み椅子の意識を持
たせない重厚な使用感が得られるようになる。更にはそ
の使用状態では、座起倒駆動機構３５の押上ロッド４１
の上端係合子４１ａがガイド機構１７の回動リンク２１
のフック部２１ａから下方に完全に離脱してしまうの
で、回転軸筒２５を介して支持枠受台１９以上の部材が
水平回転可能となり、座１１の着座向きを自由に変更で
きる回転機能並びにそのオートリターン機能が得られる
と共に、水平軸２０を支点に背座支持枠１５がロッキン
グ用ばね２４に抗し傾動可能で、着座者が後ろに体重を
掛ければ、背凭れ１２及び座１１などが後傾して軽い休
息姿勢を取れるロッキング機能が得られるようになる。Contrary to the above, when the push-up rod 41 is moved downward by the drive of the seat raising / lowering drive mechanism 35, as shown in FIG. 1, the seat 11 and the armrest 12 are pulled forward through the guide mechanism 17 while being integrally lowered. By rotating, it can be deployed in a substantially horizontal overturned state on the back support frame 15, thereby obtaining a useable state in which it can be seated. In this use state, the push-up rod 4
1, the leg 13 is held in a forward tilted state by the forward / backward movement lever 42, and the chair 3 is thereby moved to the front conference desk 2
, The seated person can easily perform a writing operation or the like. In the use state, the seated person
There is no need to defeat them one by one, and a solid feeling of use that does not have the consciousness of a folding chair can be obtained. Further, in the state of use, the push-up rod 41 of the
Of the upper end engaging element 41a of the guide mechanism 17
Of the support frame 19 can be rotated horizontally through the rotary shaft cylinder 25, so that the seating direction of the seat 11 can be freely changed and its rotation function. The auto return function is obtained, and the back support frame 15 can be tilted around the horizontal shaft 20 against the locking spring 24. If the seated person leans back, the backrest 12 and the seat 11 are moved rearward. The rocking function that can take a light resting posture by tilting can be obtained.

【００３２】また、図２に示す如く座１１と肘掛け１２
を起立した折畳み状態では、前記座起倒駆動機構３５の
押上ロッド４１が上昇移動して、この上端の係合子４１
ａがガイド機構１７の回動リンク２１のフック部２１ａ
に係合した状態を保つので、支持枠受台１９及び背座支
持枠１５の水平回転並びに該背座支持枠１５のロッキン
グ動を規制するロック機能を働くことになる。これにて
その折畳み状態では座１１や肘掛け１２や背凭れ１０が
水平回転やロッキング動など遊動せず、床下等への格納
動作がやり易くなる。As shown in FIG. 2, a seat 11 and an armrest 12 are provided.
In the folded state, the push-up rod 41 of the seat raising / lowering drive mechanism 35 moves upward, and the upper end
a is a hook portion 21a of the rotation link 21 of the guide mechanism 17
Therefore, the locking function of restricting the horizontal rotation of the support frame support 19 and the back support frame 15 and the locking movement of the back support frame 15 is performed. In this state, in the folded state, the seat 11, the armrest 12, and the backrest 10 do not move freely such as horizontal rotation and rocking motion, and the storing operation under the floor or the like becomes easy.

【００３３】[0033]

【考案の効果】本考案の椅子は、座並びに肘掛けが大形
であっても、それらを一体的に押上回動して簡単に起立
させて全体を薄く折畳め、床下等に格納するのに具合が
良くなると共に、使用状態では着座者が座などをいちい
ち倒す必要がなく、折畳み椅子の意識を持たせない重厚
な使用感が得られる。[Effect of the invention] Even if the chair and armrest are large, the chair of the present invention can be easily pushed up and rotated together to easily stand up, and the whole can be folded thinly and stored under the floor. In addition to the above, the occupant does not need to lean down the seat or the like in the use state, and a solid feeling of use can be obtained without the consciousness of the folding chair.

【００３４】また、座と肘掛けを起立回動させて折畳む
方式でありながら、着座向きを自由に変更できる回転機
能や、後傾して軽い休息姿勢を取れるロッキング機能を
付加しても、これら機能が使用状態では何ら規制を受け
ることがなく、多機能を持つ折畳み方式の本格的な議場
用等の椅子が提供可能である。更には、多機能を持つ折
畳み方式の本格的な議場用等の椅子であっても、構成の
簡略化が図れてコストの低減が可能である。In addition to the folding system in which the seat and the armrest are turned upright and rotated, a rotation function for freely changing the seating direction and a locking function for tilting backward to take a light resting posture are added. The function is not subject to any restrictions in the use state, and it is possible to provide a multifunctional folding chair for a full-scale conference hall or the like. Furthermore, even a multi-functional folding-type chair for a full-scale conference hall or the like can be simplified in structure and cost can be reduced.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本考案の一実施例を示す議場用椅子の一部断面
した側面図。FIG. 1 is a partial cross-sectional side view of a chair for a conference hall showing one embodiment of the present invention.

【図２】同上椅子の折畳み状態の一部断面した側面図。FIG. 2 is a partially sectional side view of the chair in a folded state.

【図３】同上椅子の分解斜視図。FIG. 3 is an exploded perspective view of the chair.

【図４】同上椅子を会議用机と共に床部に設置したホー
ルの一部分の側面図。FIG. 4 is a side view of a part of a hall in which the chair and the conference desk are installed on the floor.

【図５】同上ホールの議場モードにおける全体的平面
図。FIG. 5 is an overall plan view of the same hall in a parliamentary mode.

【図６】同上断面図。FIG. 6 is a sectional view of the same.

【図７】同上ホールの劇場モードにおける全体的平面
図。FIG. 7 is an overall plan view of the same hall in a theater mode.

【図８】同上断面図。FIG. 8 is a sectional view of the same.

【符号の説明】[Explanation of symbols]

３…議場用椅子、１０…背凭れ、１１…座、１２…肘掛
け、１３…脚、１５…背座支持枠、１７…ガイド機構、
１９…支持枠受台、２０…水平軸（支持軸）、２１…回
動リンク、２２…ガイドコロ、２３…スライド溝、２４
…ロッキング用ばね、２５…回転軸筒、３５…座起倒駆
動機構、４１…押上ロッド。3 Chair for a conference hall, 10 Backrest, 11 Seat, 12 Armrest, 13 Leg, 15 Back support frame, 17 Guide mechanism,
19: support frame receiving stand, 20: horizontal shaft (support shaft), 21: rotating link, 22: guide roller, 23: slide groove, 24
... rocking spring, 25 ... rotating shaft cylinder, 35 ... seat raising / lowering drive mechanism, 41 ... pushing up rod

Claims (4)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】 脚上に背座支持枠を設け、この背座支持
枠上に背凭れを取付けると共に、座と肘掛けとを一体的
に前記背座支持枠に対しリンクやスライド等のガイド機
構を介し起立・転倒可能に設け、かつ押上動作により前
記ガイド機構を介し座と肘掛けとを後方に起立回動させ
て折畳み、逆に引下げ動作によりガイド機構を介し座と
肘掛けとを前方に転倒させて背座支持枠上に略水平に展
開すると共に該ガイド機構から下方に離脱する座起倒駆
動機構を前記脚内に設けて構成したことを特徴とする椅
子。1. A back support frame is provided on a leg, a backrest is mounted on the back support frame, and a seat and an armrest are integrated with the back support frame to provide a guide mechanism such as a link or a slide. The seat and the armrests are provided so as to be able to stand up and fall down through the guide mechanism, and the seat and the armrests are erected and rotated rearward through the guide mechanism by the push-up operation, and conversely, the seat and the armrests are turned forward through the guide mechanism by the pull-down operation. And a chair raising and lowering drive mechanism that extends substantially horizontally on the back support frame and detaches downward from the guide mechanism in the leg. 【請求項２】 請求項１記載の椅子において、座起倒駆
動機構はガイド機構を介し座と肘掛けとを押上並びに引
下げ動作するための押上ロッドを有し、一方脚の上部に
垂直な回転軸筒を介し回転可能に支持枠受台を設け、こ
の支持枠受台に背座支持枠を水平軸とロッキング用ばね
を介しロッキング動可能に支持し、かつ前記回転軸筒内
に前記座起倒駆動機構の押上ロッドを上下動可能に挿通
したことを特徴とする椅子。2. The chair according to claim 1, wherein the seat raising / lowering drive mechanism has a push-up rod for raising and lowering the seat and the armrest through a guide mechanism, and a rotating shaft perpendicular to the upper part of the leg. A support frame support is provided rotatably via a cylinder, and a back seat support frame is supported on the support frame support via a horizontal shaft and a locking spring so as to be capable of rocking, and the seat is tilted in the rotary shaft cylinder. A chair wherein a push-up rod of a drive mechanism is vertically movably inserted. 【請求項３】 請求項２記載の椅子において、座起倒駆
動機構は、この押上ロッドが押上動作してガイド機構を
介し座と肘掛けとを後方に起立回動させて折畳むと同時
に、該ガイド機構を介し背座支持枠の水平回転並びにロ
ッキング動を規制するロック機能を有する構成としたこ
とを特徴とする椅子。3. The chair raising and lowering mechanism according to claim 2, wherein the push-up rod is pushed up by the push-up rod to cause the seat and the armrest to stand upright and pivot rearward through a guide mechanism to be folded. A chair having a lock function of restricting horizontal rotation and rocking movement of a back support frame via a guide mechanism. 【請求項４】 請求項２記載の椅子において、水平軸は
ガイド機構のリンクの支持軸を兼用していることを特徴
とする椅子。4. The chair according to claim 2, wherein the horizontal axis also serves as a support axis of a link of the guide mechanism.