JP2006000144A - Chair - Google Patents

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JP2006000144A
JP2006000144A JP2004176591A JP2004176591A JP2006000144A JP 2006000144 A JP2006000144 A JP 2006000144A JP 2004176591 A JP2004176591 A JP 2004176591A JP 2004176591 A JP2004176591 A JP 2004176591A JP 2006000144 A JP2006000144 A JP 2006000144A
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frame
seat
backrest
base frame
chair
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JP2004176591A
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Naoyuki Okuda
直之 奥田
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Okamura Corp
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Okamura Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a comfortable sitting quality when a backrest is tilted rearward. <P>SOLUTION: The front ends of a pair of left/right front-facing pieces 21b at the lower end of a back frame 10 having a backrest 4 attached thereto and formed into a front-facing L shape in the side view are vertically turnably pivoted to the central part in the front/rear direction of the left/right side plates 11 in the base frame 8 fixed to a floor face so as to retain the backrest 4 at a desired rearward tilt angle by a reclining mechanism, pivots 15 projecting to the front-end left/right both sides in the seat frame 9 supporting the lower face of the seat body 3 are slidably and pivotally fitted in long holes 16 provided in the front ends of the both side plates 11 and 11 of the base frame 8 and facing in the front/rear direction, and the left/right both sides of the rear end of the seat frame 9 are pivoted to the intermediate portions of the front-facing pieces 21b of the back frame 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、例えば鉄道車両や航空機等の客室に設置される椅子に関する。   The present invention relates to a chair installed in a guest room such as a railway vehicle or an aircraft.

この種の従来の椅子としては、座体の後端部と背凭れの下端とを、リンク機構をもって連結し、座体の下部に設けたガススプリング等の無段階ロック装置を操作することにより、背凭れを後傾するとともに、それと連動して座体が前方に移動するようにしたリクライニング椅子がある(例えば特許文献1参照)。   As this type of conventional chair, by connecting the rear end of the seat and the lower end of the backrest with a link mechanism, and operating a stepless locking device such as a gas spring provided at the bottom of the seat, There is a reclining chair in which the backrest is tilted backward and the seat moves forward in conjunction with the backrest (see, for example, Patent Document 1).

また、座体の後端部に、背凭れの下端を前後に回動可能に枢着するとともに、座体の前後の端部と肘掛けとを、ガススプリング等のダンパとリンク部材などからなるリクライニング機構に連係し、背凭れを後傾した際、それと連動して座体が前方に、かつ肘掛けが後方に、それぞれ移動するようにした車両用椅子もある(例えば特許文献2参照)。
実開昭58−123736号公報 特開2001−231651号公報
In addition, the lower end of the backrest is pivotally attached to the rear end of the seat so that it can be rotated back and forth, and the front and rear ends of the seat and the armrest are reclining made of a damper such as a gas spring and a link member. There is also a vehicle chair that is linked to the mechanism so that when the backrest is tilted backward, the seat moves forward and the armrest moves backward in conjunction with the backrest (see, for example, Patent Document 2).
Japanese Utility Model Publication No. 58-123736 JP 2001-231651 A

上記特許文献1、2に記載されている従来の椅子は、いずれも、背凭れを後傾させると、それと連動して座体が前方に移動し、着座者の臀部が前方に移動するので、着座者の上体の荷重の一部が、分力として座体の前部側に比較的大きく加わり、臀部を座体の後部で安定して支持することができなくなる。   In the conventional chairs described in Patent Documents 1 and 2, when the backrest is tilted backward, the seat moves forward in conjunction with it, and the seated person's buttocks move forward. A part of the load on the upper body of the seated person is applied relatively large as a component force on the front side of the seat body, and the heel portion cannot be stably supported on the rear portion of the seat body.

また、座体が前方に移動すると、足の踝部を中心として下腿部が前傾し、大腿部と下腿部との折り曲げ角度、すなわち膝の曲げ角度が小さくなるので、快適な座り心地が得られない。
さらに、膝が前方に移動するので、前席との間の空間が狭くなり、隣席の着座者の通行の妨げとなる。
In addition, when the seat moves forward, the lower leg tilts forward with the heel of the foot as the center, and the bending angle between the thigh and lower leg, that is, the bending angle of the knee is reduced, so that a comfortable sitting is possible. I can't get comfort.
Further, since the knee moves forward, the space between the front seat is narrowed, and the passage of the seated person in the adjacent seat is hindered.

さらにまた、上記従来の椅子は、座体の下部と基台との間に、複雑なリンク機構や無段階ロック装置、リクライニング機構を設けてあるため、椅子全体の高さが大きくなることが避けられず、天井の高さに制限のある鉄道車両や航空機等の客室に椅子を設置する際に、その搬入や施工性が悪くなる。
しかも、座体の下部の脚台には、電動の旋回機構やリクライニング機構が設けられているので、通常のオフィス用椅子のリクライニング機構も使用することができない。
Furthermore, the above conventional chair is provided with a complicated link mechanism, stepless lock device, and reclining mechanism between the lower part of the seat and the base, so that the height of the entire chair is avoided. However, when a chair is installed in a guest room such as a railway vehicle or an aircraft having a ceiling height restriction, the carrying-in and workability deteriorate.
In addition, since the electric platform and the reclining mechanism are provided on the lower pedestal of the seat body, the reclining mechanism of a normal office chair cannot be used.

本発明は、上記問題点に鑑みてなされたもので、背凭れを後傾させた際に快適な座り心地が得られるとともに、隣席の着座者の通行も容易であり、かつ座体及び背凭れの高さを最小限に抑えて、搬入や施工性を向上しうるようにした、椅子を提供することを目的としている。   The present invention has been made in view of the above-described problems, and provides a comfortable seating feeling when the backrest is tilted backward, and also facilitates the passage of a seated person in the adjacent seat, and the seat body and the backrest. The purpose is to provide a chair that can improve the carrying-in and workability while minimizing the height of the chair.

本発明によると、上記課題は、次のようにして解決される。
(1) 床面に固着された基枠における左右の側板の前後方向のほぼ中央部に、背凭れが取付けられた側面視前向L字状をなす背フレームにおける下端の左右1対の前向片の前端部を、上下に回動自在に、かつリクライニング機構により前記背凭れを所望の後傾角度に保持しうるように枢着するとともに、座体の下面を支持する座フレームにおける前端の左右両側部に突設した枢軸を、前記基枠の両側板の前端部に設けた前後方向を向く長孔に、摺動可能に枢嵌し、かつ前記座フレームの後端の左右両側部を、前記背フレームの両前向片の中間部に枢着する。
According to the present invention, the above problem is solved as follows.
(1) A pair of left and right front ends at the lower end of a back frame that is L-shaped in a front view with a backrest attached to the front and rear sides of the left and right side plates of the base frame fixed to the floor. The front end of the piece is pivoted up and down so that the backrest can be held at a desired rearward tilt angle by a reclining mechanism, and left and right of the front end of the seat frame that supports the lower surface of the seat body The pivots projecting on both sides are slidably pivoted in the longitudinal holes provided in the front ends of the side plates of the base frame and facing the left and right sides of the rear end of the seat frame. It is pivotally attached to the middle part of both forward facing pieces of the back frame.

(2) 上記(1)項において、座体の下面に、基枠と座フレームの少なくとも上半部、及び背フレームの前向片が収容される凹部を設ける。 (2) In the above paragraph (1), a recess for accommodating at least the upper half of the base frame and the seat frame and the forward piece of the back frame is provided on the lower surface of the seat body.

(3) 上記(1)または(2)項において、座体の少なくとも左右いずれか一方の側面後部を切欠き、この切欠きを通して、肘掛けの下端部を基枠の側面に固着する。 (3) In the above item (1) or (2), at least one of the left and right side rear portions of the seat body is cut out, and the lower end portion of the armrest is fixed to the side surface of the base frame through the cutout.

(4) 上記(1)〜(3)項のいずれかにおいて、座フレームと背フレームの前向片の中間部との枢着部を、基枠と背フレームの前向片の前端との枢着部よりも上位とする。 (4) In any one of the above items (1) to (3), the pivoting portion between the seat frame and the middle portion of the forward piece of the back frame is the pivot between the base frame and the front end of the forward piece of the back frame. It is higher than the landing part.

(5) 上記(1)〜(4)項のいずれかにおいて、基枠に設けた長孔を、斜め後上方に向かって傾斜させる。 (5) In any one of the above items (1) to (4), the long hole provided in the base frame is inclined obliquely rearward and upward.

(6) 上記(1)〜(5)項のいずれかにおいて、リクライニング機構が、ガススプリングを備え、該ガススプリングを、背凭れ内において背フレームと基枠の後端との間に、上下方向を向くように設ける。 (6) In any one of the above items (1) to (5), the reclining mechanism includes a gas spring, and the gas spring is vertically moved between the back frame and the rear end of the base frame in the backrest. Provide to face.

請求項1記載の発明によれば、背凭れと共に背フレームを後傾させると、背フレームの前向片が、その前端の枢着部を中心として下向きに回動することにより、前向片の中間部に後端が枢着されている座フレーム及びそれに支持された座体は、基枠の長孔に枢嵌した枢軸を中心として、かつ長孔に沿って摺動しながら後下方に傾動する。
その結果、従来のように着座者の臀部が前方に移動することがなくなるので、座体の前部側に加わる荷重が減少して臀部が安定して支持され、快適な座り心地が得られる。
また、座体が後下方に移動することにより、踝部を中心として下腿部が後傾し、膝の曲げ角度が大となるので、安楽姿勢で着座することができる。
さらに、背凭れを後傾させても膝が前方に移動しないので、前席との間の空間が狭くなって、隣席の着座者の通行の妨げになることもない。
According to the first aspect of the present invention, when the back frame is tilted backward together with the backrest, the forward facing piece of the back frame is rotated downward about the pivoting portion at the front end thereof, The seat frame whose rear end is pivotally attached to the middle part and the seat body supported by the seat frame are tilted rearward and downward while sliding along the elongated hole centered on the elongated hole of the base frame. To do.
As a result, since the seated person's buttocks do not move forward as in the conventional case, the load applied to the front side of the seat body is reduced, and the buttocks are stably supported, thereby providing a comfortable sitting comfort.
Moreover, since the seat body moves rearward and downward, the lower leg part tilts backward with the hips as the center, and the bending angle of the knee becomes large, so that it is possible to sit in an easy posture.
Further, even if the backrest is tilted backward, the knee does not move forward, so the space between the front seat is narrowed and the passage of the seated person in the adjacent seat is not hindered.

請求項2記載の発明によれば、座体を含む椅子全体の高さが小さくなるので、高さに制限のある鉄道車両や航空機等の客室への搬入や施工作業が容易となる。   According to the second aspect of the present invention, since the height of the entire chair including the seat body is reduced, it is easy to carry into a guest room such as a railway vehicle or an aircraft with a limited height and to perform construction work.

請求項3記載の発明によれば、座席や背凭れ等を全て基枠に組付けた後に、肘掛けを、座体の切欠きを通して基枠の側板に、側方から容易にかつ体裁よく取付けることができる。   According to the invention described in claim 3, after all the seats and backrests are assembled to the base frame, the armrests are attached to the side plate of the base frame through the notches of the seat body easily and in good shape from the side. Can do.

請求項4記載の発明によれば、背凭れを後傾させた際、座フレームが前向片の前端またはその枢軸と干渉するでまでの領域が拡大するので、背凭れの後傾角度を大として、座フレーム及び座体を後下方へ大きく傾動させることが可能となり、着座者の臀部をより安定して支持することができる。   According to the fourth aspect of the present invention, when the backrest is tilted backward, the area until the seat frame interferes with the front end of the forward piece or the pivot thereof is enlarged. As described above, the seat frame and the seat body can be greatly tilted rearward and downward, and the seated person's buttocks can be supported more stably.

請求項5記載の発明によれば、背凭れを後傾させた際に、座フレーム及びそれにより支持された座体の前部が、長孔に沿って斜め後上方に移動するので、大腿部の前部側の下面が座面と密着し、臀部から大腿部の下面までの支持面積が大となることにより、疲労感が少なくなる。   According to the fifth aspect of the present invention, when the backrest is tilted backward, the seat frame and the front portion of the seat supported by the seat frame move obliquely rearward and upward along the long hole. The lower surface on the front side of the part is in close contact with the seat surface, and the support area from the buttocks to the lower surface of the thigh is increased, so that the feeling of fatigue is reduced.

請求項6記載の発明によれば、ガススプリングは、背凭れ内に上下方向を向いて設けられているので、座体の下方にガススプリングを設けた従来の椅子に比して、座体の上下寸法を小さくすることができる。   According to the sixth aspect of the present invention, the gas spring is provided in the backrest so as to face in the vertical direction. Therefore, the gas spring is lower than the conventional chair in which the gas spring is provided below the seat body. The vertical dimension can be reduced.

以下、本発明の実施形態を、図面に基づいて説明する。
図1は、例えば鉄道車両の客室に設置される本発明の椅子の斜視図で、椅子(1)は、車両の床面に固着された架台(2)の上部に、図示しない旋回機構を介して左右2列並設されている。
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a chair of the present invention installed, for example, in a passenger room of a railway vehicle. The chair (1) is placed on an upper portion of a gantry (2) fixed to the floor of the vehicle via a turning mechanism (not shown). Are arranged side by side in two rows.

左右の椅子(1)は、座体(3)と、背凭れ(4)と、テーブル(5)と、外側面の肘掛け(6)とを備え、これら全ての部材は、図2の分解斜視図に示すように(図1の右方の椅子のみ図示する)、フレーム(7)に取付けられている。   The left and right chairs (1) comprise a seat (3), a backrest (4), a table (5), and an armrest (6) on the outer side, all of which are exploded perspective views of FIG. As shown in the figure (only the right chair of FIG. 1 is shown), it is attached to the frame (7).

フレーム(7)は、上記架台(2)の上部に取付けられ基枠(8)と、座フレーム(9)と、側面視前向L字状の背フレーム(10)とを備えている。   The frame (7) includes a base frame (8), a seat frame (9), and a L-shaped back frame (10) that is forwardly viewed from the side, and is attached to the top of the gantry (2).

基枠(8)は、左右1対の側板(11)(11)における前後の対向面に横杆(12)(12)を固着することにより、平面視方形枠状に形成されている。   The base frame (8) is formed in a square frame shape in plan view by fixing the horizontal rods (12) and (12) to the front and rear facing surfaces of the pair of left and right side plates (11) and (11).

座フレーム(9)は、左右1対の座支持板(13)(13)の前後と中央部の対向面に、3個の座受杆(14)を固着することにより、基枠(8)の側板(11)間に余裕をもって収容可能なほぼ方形枠状に形成されている。   The seat frame (9) has a base frame (8) by fixing three seat receiving rods (14) to the front and rear and center faces of the pair of left and right seat support plates (13) (13). It is formed in a substantially rectangular frame shape that can be accommodated between the side plates (11) with a margin.

座支持板(13)の後半部は、側面視倒立L字状をなすように若干起立しており、その上端には、外側方を向く水平の支持片(13a)が連設されている。   The rear half of the seat support plate (13) is slightly raised so as to form an inverted L shape when viewed from the side, and a horizontal support piece (13a) facing outward is continuously provided at the upper end thereof.

座フレーム(9)の前端は、その両座支持板(13)の前端部に固着した左右方向を向く枢軸(15)を、基枠(8)の両側板(11)の前端上部に穿設した斜め後ろ上方を向く長孔(16)に挿通することにより、基枠(8)内において、上下に回動可能かつ長孔(16)に沿って斜め上下方向に移動可能に枢支されている。   The front end of the seat frame (9) has a left and right pivot (15) fixed to the front end of both seat support plates (13), drilled in the upper part of the front end of both side plates (11) of the base frame (8). By being inserted into the elongated hole (16) facing obliquely rearward and upward, it is pivotally supported in the base frame (8) so as to be able to turn up and down and to move obliquely up and down along the elongated hole (16). Yes.

図3の断面図にも示すように、座体(3)の前半部下面の中央部には、座フレーム(9)の前半部と、基枠(8)の前半部の上部とが収容可能な凹部(17)が形成され、同じく後半部の下面には、座フレーム(9)の後半部の起立部が収容可能な上下寸法の大きな凹部(18)が、凹部(17)と連続するように2段に形成されている。   As shown in the cross-sectional view of FIG. 3, the front half of the seat frame (9) and the upper part of the front half of the base frame (8) can be accommodated in the center of the lower surface of the front half of the seat (3). A concave portion (17) is formed, and a concave portion (18) having a large vertical dimension that can accommodate a standing portion of the rear half portion of the seat frame (9) is connected to the concave portion (17). Are formed in two stages.

座体(3)のほぼ後半部の左右両側面と後面は、凹部(18)と連通するように切欠いてある(図2参照)。   The left and right side surfaces and the rear surface of the substantially rear half of the seat body (3) are notched so as to communicate with the recess (18) (see FIG. 2).

凹部(17)内に取付けた座シェル(19)の下面を、座フレーム(9)の3個の座受杆(14)に当接させて固定するとともに、左右の支持片(13a)の上面を凹部(18)の下面に固定することにより、座体(3)は座フレーム(9)に取付けられている。   The lower surface of the seat shell (19) mounted in the recess (17) is fixed in contact with the three seat receivers (14) of the seat frame (9) and the upper surfaces of the left and right support pieces (13a). Is fixed to the lower surface of the recess (18), whereby the seat (3) is attached to the seat frame (9).

背フレーム(10)は、左右の縦杆(10a)(10a)の下部の内側面に、上端が左右方向を向く連結杆(20)により結合された、側面視前向L字状をなす左右1対の支持アーム(21)(21)の起立片(21a)を固着して構成されている。   The back frame (10) is a left and right vertical L-shape joined to the inner surface of the lower part of the left and right vertical rods (10a) (10a) by a connecting rod (20) with the upper end facing the left and right direction. A pair of support arms (21) and (21) are configured to be fixed with rising pieces (21a).

両支持アーム(21)の前向片(21b)の前端は、図4にも示すように、基枠(8)の両側板(11)における前後方向の中央部に、左右方向を向く枢軸(22)により回動自在に枢着されている。
また、両支持アーム(21)の前向片(21b)の中間部は、基枠(8)の側板(11)と座フレーム(9)の座支持板(13)間において、座支持板(13)の後端部に、上記枢軸(22)よりも上位とされた左右方向を向く枢軸(23)により枢着されている。
As shown in FIG. 4, the front ends of the forward pieces (21b) of both support arms (21) are pivoted in the left-right direction at the center in the front-rear direction of the side plates (11) of the base frame (8). It is pivotally mounted by 22).
Further, an intermediate portion of the forward pieces (21b) of both the support arms (21) is a seat support plate (between the side plate (11) of the base frame (8) and the seat support plate (13) of the seat frame (9)). 13) It is pivotally attached to the rear end of the pivot (23) facing the left-right direction, which is higher than the pivot (22).

これにより、枢軸(22)を中心として支持アーム(21)を下向きに回動し、背フレーム(10)全体を後傾させると、それに連動して、座フレーム(9)も前端の枢軸(15)を中心として後傾するとともに、枢軸(15)が長孔(16)に沿って後ろ上方に移動することにより、前端部が上昇する。   As a result, when the support arm (21) is rotated downward about the pivot (22) and the entire back frame (10) is tilted backward, the seat frame (9) is also linked to the pivot (15 ) As the center, and the pivot (15) moves rearward and upward along the long hole (16), thereby raising the front end.

背凭れ(4)は、その背面の中央部に形成された凹部(24)内に背フレーム(10)の起立部を収容した状態で、該背フレーム(10)に固定され、背フレーム(10)の起立部は、凹部(24)の後面の開口部に止着された塞ぎパッド(25)と背板(26)とにより体裁よく覆われている。   The backrest (4) is fixed to the back frame (10) in a state where the upright portion of the back frame (10) is accommodated in a recess (24) formed at the center of the back surface thereof, and the back frame (10 ) Is covered with appearance by a closing pad (25) and a back plate (26) fixed to the opening on the rear surface of the recess (24).

支持アーム(21)の連結杆(20)と基枠(11)の後部の横杆(12)との間の側方寄りには、リクライニング機構の一部をなすガススプリング(27)が、次のようにして取付けられている。   A gas spring (27) that forms part of the reclining mechanism is next to the side between the connecting rod (20) of the support arm (21) and the horizontal rod (12) at the rear of the base frame (11). It is installed like this.

図5に示すように、連結杆(20)の外側方の下面には、下向コ字状のブラケット(28)が固着され、このブラケット(28)に、ガススプリング(27)のシリンダの上端が枢着されている。   As shown in FIG. 5, a downward U-shaped bracket (28) is fixed to the lower surface of the outer side of the connecting rod (20), and the upper end of the cylinder of the gas spring (27) is fixed to the bracket (28). Is pivotally attached.

横杆(12)の外側方の上面には、正面視上向コ字状のブラケット(29)が、上記ブラケット(28)と対向するように後方に突出させて固着され、このブラケット(29)に、ガススプリング(27)のロッド(27a)の下端に取付けた正面視コ字状の連結金具(30)が、左右方向を向くピン(31)により枢着されている。   A bracket (29) that is U-shaped when viewed from the front is fixed to the upper surface of the outer surface (12) so as to face the bracket (28). Further, a U-shaped connecting metal fitting (30) attached to the lower end of the rod (27a) of the gas spring (27) is pivotally attached by a pin (31) facing in the left-right direction.

連結金具(30)のコ形空間内には、ガススプリング(27)のプッシュバルブ(27b)を押動するための押圧レバー(32)が、その後端の枢軸(33)を中心として上下に回動しうるように遊挿されている。   A pressing lever (32) for pushing the push valve (27b) of the gas spring (27) rotates up and down around the pivot (33) at the rear end in the U-shaped space of the coupling bracket (30). It is loosely inserted so that it can move.

押圧レバー(32)の前端には、連結金具(30)と一体をなす支持片(34)に一端が固定された操作ケーブル(35)のワイヤ(35a)が接続されている。操作ケーブル(35)の他端は、肘掛け(6)の上端前部の内側面に突設した操作ボタン(36)に連係され、このボタン(36)を押すことにより、ワイヤ(35a)が引っ張られて押圧レバー(32)が上向きに回動し、プッシュバルブ(27b)が押圧されてガススプリング(27)のロックが解除されるようになる。   Connected to the front end of the pressing lever (32) is a wire (35a) of an operation cable (35) having one end fixed to a support piece (34) integral with the coupling fitting (30). The other end of the operation cable (35) is linked to an operation button (36) projecting on the inner surface of the front upper end of the armrest (6). By pressing this button (36), the wire (35a) is pulled. Then, the pressing lever (32) rotates upward, the push valve (27b) is pressed, and the lock of the gas spring (27) is released.

図4に示すように、肘掛け(6)は、座体(3)における後半部の一側面の切欠部を通して、基枠(8)の外方の側板(11)の側面にねじ止めされている。   As shown in FIG. 4, the armrest (6) is screwed to the side surface of the outer side plate (11) of the base frame (8) through a notch portion on one side surface of the rear half of the seat body (3). .

上述したテーブル(5)は、可動天板(37)と、上端部が横杆(38)により連結された左右1対の天板支持アーム(39)(39)とからなり、可動天板(37)の下端部の左右両側面に突設した左右方向を向く枢軸(40)を、両天板支持アーム(39)の起立片(39a)の上端に枢嵌することにより、上下に回動自在に取付けられている。   The table (5) described above is composed of a movable top plate (37) and a pair of left and right top plate support arms (39) and (39) whose upper end portions are connected by a horizontal rod (38). Rotate up and down by pivoting the left and right pivots (40) projecting on the left and right sides of the lower end of 37) to the upper ends of the upright pieces (39a) of the top support arms (39) It is installed freely.

また、枢軸(40)の直下に突設した左右1対のストッパピン(41)を、両天板支持アーム(39)の起立片(39a)の上端部に形成した、枢軸(40)を中心とする円弧状のガイド孔(42)に嵌合することにより、可動天板(37)は、背板(26)と平行をなして上下方向を向く不使用位置と、天板支持アーム(39)を後方に回動したときに水平をなす使用位置との間を上下に回動しうるように取付けられている(図2、図3参照)。   In addition, a pair of left and right stopper pins (41) projecting directly under the pivot (40) is formed at the upper end of the upright piece (39a) of both top plate support arms (39). The movable top plate (37) is parallel to the back plate (26) and is not in the up-and-down direction, and the top plate support arm (39 ) Is attached so as to be able to turn up and down between the horizontal use position (see FIGS. 2 and 3).

左右の天板支持アーム(39)の下端の前向片(39b)の前端部は、図2〜図4に示すように、基枠(8)の両側板(11)の外側面において、上記背凭れ(4)の支持アーム(21)と共通の枢軸(22)により、基枠(8)に上下に回動自在に枢着されている。   As shown in FIGS. 2 to 4, the front end portion of the front piece (39b) at the lower end of the left and right top plate support arms (39) is located on the outer surface of the both side plates (11) of the base frame (8). A pivot (22) common to the support arm (21) of the backrest (4) is pivotally attached to the base frame (8) so as to be rotatable up and down.

両前向片(39b)の前端上面は、基枠(8)の両側板(11)の中間部側面に固着したL字状の取付片(43)に取付けられたアジャストストッパ(44)の下端と当接するようになっている(図2参照)。
すなわち、左右の天板支持アーム(39)を後方に回動し、それらの左右の前向片(39b)の前端がアジャストストッパ(44)と当接したとき、可動天板(37)がほぼ水平の使用位置となるようにしてある。
The upper surface of the front end of both forward facing pieces (39b) is the lower end of an adjustment stopper (44) attached to an L-shaped attachment piece (43) fixed to the side surface of the middle part of both side plates (11) of the base frame (8). (See FIG. 2).
That is, when the left and right top plate support arms (39) are rotated rearward and the front ends of the left and right front pieces (39b) are in contact with the adjustment stopper (44), the movable top plate (37) is almost It is designed to be a horizontal use position.

図3に示すように、背板(26)の上端部中央を貫通して、前端部が背フレーム(10)の横杆内に固着された前後方向を向く支軸(45)には、係止レバー(46)が回動自在に取付けられ、この係止レバー(46)を、可動天板(37)の上端部背面の薄肉部(37a)に係止することにより、テーブル(5)すなわち可動天板(37)と天板支持アーム(39)とが不使用位置に保持されるようになっている。   As shown in FIG. 3, the support shaft (45) passing through the center of the upper end portion of the back plate (26) and facing the front end with the front end portion fixed in the horizontal frame of the back frame (10) is engaged. A stop lever (46) is pivotally attached, and the locking lever (46) is locked to the thin wall portion (37a) on the back of the upper end of the movable top plate (37), so that the table (5), The movable top plate (37) and the top plate support arm (39) are held in a non-use position.

この際、左右の天板支持アーム(39)と背凭れ(4)及び背板(26)の後面との間に若干の隙間(S)が形成され、指等が挟み込まれるのを防止している。また、可動天板(37)は、その厚さ方向のほぼ前半分が、背凭れ(4)の背面に形成された凹部(47)に収納されるようになっている(図3参照)。   At this time, a slight gap (S) is formed between the left and right top plate support arms (39) and the backs of the backrest (4) and the backplate (26) to prevent fingers and the like from being caught. Yes. The movable top plate (37) has its front half in the thickness direction accommodated in a recess (47) formed on the back surface of the backrest (4) (see FIG. 3).

上記実施形態の椅子(1)において、背凭れ(4)を後傾させて安楽姿勢とするべく、肘掛け(6)の操作ボタン(36)を押し、ガススプリング(27)のプッシュバルブ(27b)を押動して開放すると、図6に示すように、背フレーム(10)の支持アーム(21)がガススプリング(27)を圧縮させながら枢軸(22)を中心として下向きに回動することにより、背凭れ(4)を後傾させることができる。   In the chair (1) of the above embodiment, the operation button (36) of the armrest (6) is pushed and the push valve (27b) of the gas spring (27) is pushed in order to tilt the backrest (4) backward. As shown in FIG. 6, the support arm (21) of the back frame (10) rotates downward about the pivot (22) while compressing the gas spring (27), as shown in FIG. The backrest (4) can be tilted backwards.

また、背凭れ(4)が後傾すると、後端が支持アーム(21)に枢軸(23)をもって連結され、かつ前端が基枠(8)の長孔(16)に枢軸(15)をもって枢支されている座フレーム(9)は、長孔(16)の範囲内で後下方へ傾動する。これにより、座フレーム(9)に取付けた座体(3)も、前部が若干斜め後上方に移動しながら、全体が後下方に傾動するようになる。   When the backrest (4) is tilted backward, the rear end is connected to the support arm (21) with a pivot (23), and the front end is pivoted to the slot (16) of the base frame (8) with a pivot (15). The supported seat frame (9) tilts rearward and downward within the range of the long hole (16). As a result, the seat body (3) attached to the seat frame (9) also tilts rearwardly and downwardly while the front part moves slightly rearward and upward.

その結果、従来のように、着座者の臀部が前方に移動することがなくなり、かつ座体(3)の前部側に加わる着座者の荷重が減少し、臀部が安定して支持されることにより、安楽姿勢で着座することができる。   As a result, the seat occupant's buttocks do not move forward as in the prior art, and the seat occupant's load applied to the front side of the seat (3) is reduced, so that the buttocks are stably supported. This makes it possible to sit in an easy posture.

また、座体(3)が後下方に傾動することにより、踝部を中心として下腿部が後斜し、それと大腿部との折り曲げ角度、すなわち膝の曲げ角度が大きくなるので、快適な座り心地が得られる。
さらに、膝が前方に移動しないので、前席との間の空間が狭くなることはなく、隣席の着座者の通行の妨げとなることもない。
Further, since the seat body (3) tilts rearward and downward, the lower leg part is tilted rearward with the hip part as the center, and the bending angle between the lower leg part and the thigh part, that is, the knee bending angle is increased. Sitting comfort is obtained.
Furthermore, since the knee does not move forward, the space between the front seat is not narrowed, and the passage of the seated person in the adjacent seat is not hindered.

座体(3)の下面に2段の凹部(17)(18)を設け、これらに、基枠(8)の上半部、座フレーム(9)、及び支持アーム(21)の前向片(21b)を収容するとともに、ガススプリング(27)を背凭れ(4)内に収容し、かつ従来のような複雑なリンク機構を省略しているため、座体(3)を含む椅子全体の高さを小さくすることができ、高さに制限のある鉄道車両や航空機等の客室への搬入や施工作業が容易となる。   The lower surface of the seat (3) is provided with two-level recesses (17) and (18), and the upper half of the base frame (8), the seat frame (9), and the forward pieces of the support arm (21) (21b) is accommodated, the gas spring (27) is accommodated in the backrest (4), and the conventional complicated link mechanism is omitted, so that the entire chair including the seat (3) The height can be reduced, and it becomes easy to carry into a guest room such as a railway vehicle or an aircraft with a limited height and to perform construction work.

テーブル(5)は、その天板支持アーム(39)をほぼ前向L字状とし、前向片(39b)の前端を、背凭れ(4)の回動中心軸である支持アーム(21)の枢軸(22)により、基枠(8)の前後方向の中央部に枢着しているため、テーブル(5)を使用位置に回動させた際、図3に示すように、天板支持アーム(39)は背凭れ(4)の下端部及び背面より比較的大きく離間する。   The table (5) has a top support arm (39) that is substantially L-shaped forward, and the front end of the front piece (39b) is the support arm (21) that is the pivot center axis of the backrest (4). Since the pivot (22) is pivotally attached to the center of the base frame (8) in the front-rear direction, when the table (5) is rotated to the use position, as shown in FIG. The arm (39) is spaced relatively far from the lower end and back of the backrest (4).

その結果、図6に示すように、背凭れ(4)を後傾させた際に、その背面下部が天板支持アーム(39)の下端部と干渉しにくくなるので、その分、背凭れ(4)の後傾角度を大とすることができ、より快適な安楽姿勢で着座することができる。   As a result, as shown in FIG. 6, when the backrest (4) is tilted backward, the lower part of the back surface is less likely to interfere with the lower end of the top plate support arm (39). 4) The rearward tilt angle can be increased, and the user can sit in a more comfortable and comfortable posture.

また、背凭れ(4)とテーブル(5)の回動軸は同軸で、かつ天板支持アーム(39)は、背凭れ(4)の支持アーム(21)の外側方に位置しているそれらを独立して回動させることができ、従って、前方の椅子の着座者が背凭れを傾動させても、後方の椅子の着座者が使用しているテーブル(5)が傾動する恐れはない。   Further, the rotational axes of the backrest (4) and the table (5) are coaxial, and the top support arm (39) is located outside the support arm (21) of the backrest (4). Therefore, even if the seat occupant of the front chair tilts the backrest, there is no fear that the table (5) used by the seat occupant of the rear chair tilts.

さらに、テーブル(5)を不使用位置に回動させた際、天板支持アーム(39)と背凭れ(4)の後面との間に隙間(S)が形成されるようにしているので、指等を挟むのが防止される。   Further, when the table (5) is rotated to the non-use position, a gap (S) is formed between the top plate support arm (39) and the back surface of the backrest (4). A finger or the like is prevented from being pinched.

本発明は、上記実施形態に限定されるものではない。
上記実施形態では、背フレーム(10)を、下部に前向L字状の別体の支持アーム(21)を固着して構成したが、それらを一体構造としてもよい。
The present invention is not limited to the above embodiment.
In the above-described embodiment, the back frame (10) is configured by attaching a separate support arm (21) having a forward L-shape to the lower portion, but these may be integrated.

座フレーム(9)の前端の枢軸(15)を案内する長孔(16)は、水平とすることもある。
テーブル(5)及び肘掛け(6)を省略して実施することもある。
The long hole (16) for guiding the pivot (15) at the front end of the seat frame (9) may be horizontal.
The table (5) and the armrest (6) may be omitted.

本発明の一実施形態の椅子の外観図である。It is an external view of the chair of one Embodiment of this invention. 同じく、分解斜視図である。Similarly, it is an exploded perspective view. 同じく、中央縦断側面図である。Similarly, it is a center vertical side view. 同じく、図3のIV−IV線拡大縦断後面図である。Similarly, it is an IV-IV line enlarged longitudinal rear view of FIG. 同じく、一部切欠側面図である。Similarly, it is a partially cutaway side view. 同じく、背凭れを後傾させた状態の一部切欠側面図である。Similarly, it is a partially cutaway side view with the backrest tilted backward.

符号の説明Explanation of symbols

(1)椅子
(2)架台
(3)座体
(4)背凭れ
(5)テーブル
(6)肘掛け
(7)フレーム
(8)基枠
(9)座フレーム
(10)背フレーム
(10a)縦杆
(11)側板
(12)横杆
(13)座支持板
(13a)支持片
(14)座受杆
(15)枢軸
(16)長孔
(17)(18)凹部
(19)座シェル
(20)連結杆
(21)支持アーム
(21a)起立片
(21b)前向片
(22)(23)枢軸
(24)凹部
(25)塞ぎパッド
(26)背板
(27)ガススプリング
(27a)ロッド
(27b)プッシュバルブ
(28)(29)ブラケット
(30)連結金具
(31)ピン
(32)押圧レバー
(33)枢軸
(34)支持片
(35)操作ケーブル
(35a)ワイヤ
(36)操作ボタン
(37)可動天板
(37a)薄肉部
(38)横杆
(39)天板支持アーム
(39a)起立片
(39b)前向片
(40)枢軸
(41)ストッパピン
(42)ガイド孔
(43)取付片
(44)アジャストストッパ
(45)支軸
(46)係止レバー
(47)凹部
(S)隙間
(1) Chair
(2) Mount
(3) Seat
(4) Backrest
(5) Table
(6) Armrest
(7) Frame
(8) Base frame
(9) Seat frame
(10) Back frame
(10a) downspout
(11) Side plate
(12) Yokohama
(13) Seat support plate
(13a) Support piece
(14) Seat bearing
(15) Axis
(16) Long hole
(17) (18) Recess
(19) seat shell
(20) Linkage
(21) Support arm
(21a) Standing piece
(21b) Forward piece
(22) (23) Axis
(24) Recess
(25) Blocking pad
(26) Backboard
(27) Gas spring
(27a) Rod
(27b) Push valve
(28) (29) Bracket
(30) Connecting bracket
(31) Pin
(32) Pressing lever
(33) Axis
(34) Support piece
(35) Operation cable
(35a) Wire
(36) Operation buttons
(37) Movable top plate
(37a) Thin part
(38) Bubo
(39) Top plate support arm
(39a) Standing piece
(39b) Forward facing piece
(40) Axis
(41) Stopper pin
(42) Guide hole
(43) Mounting piece
(44) Adjustment stopper
(45) Spindle
(46) Locking lever
(47) Recess
(S) Gap

Claims (6)

床面に固着された基枠における左右の側板の前後方向のほぼ中央部に、背凭れが取付けられた側面視前向L字状をなす背フレームにおける下端の左右1対の前向片の前端部を、上下に回動自在に、かつリクライニング機構により前記背凭れを所望の後傾角度に保持しうるように枢着するとともに、座体の下面を支持する座フレームにおける前端の左右両側部に突設した枢軸を、前記基枠の両側板の前端部に設けた前後方向を向く長孔に、摺動可能に枢嵌し、かつ前記座フレームの後端の左右両側部を、前記背フレームの両前向片の中間部に枢着したことを特徴とする椅子。   Front ends of a pair of left and right forward pieces at the lower end of a back frame that is L-shaped in a side view when the backrest is attached to the front and rear sides of the left and right side plates of the base frame fixed to the floor. Are pivotally mounted so that the backrest can be held at a desired rearward tilt angle by a reclining mechanism, and on both left and right sides of the front end of the seat frame that supports the lower surface of the seat body The projecting pivot shaft is slidably pivotally fitted into a longitudinal hole provided in the front end portion of the both side plates of the base frame and facing the front and rear sides, and the left and right side portions of the rear end of the seat frame are disposed on the back frame. A chair characterized by being pivotally attached to the middle part of the two forward-facing pieces. 座体の下面に、基枠と座フレームの少なくとも上半部、及び背フレームの前向片が収容される凹部を設けた請求項1記載の椅子。   The chair according to claim 1, wherein a recess for receiving at least an upper half portion of the base frame and the seat frame and a forward piece of the back frame is provided on the lower surface of the seat body. 座体の少なくとも左右いずれか一方の側面後部を切欠き、この切欠きを通して、肘掛けの下端部を基枠の側面に固着した請求項1または2記載の椅子。   The chair according to claim 1 or 2, wherein at least one of the left and right side rear portions of the seat body is cut out, and the lower end portion of the armrest is fixed to the side surface of the base frame through the cutout. 座フレームと背フレームの前向片の中間部との枢着部を、基枠と背フレームの前向片の前端との枢着部よりも上位とした請求項1〜3のいずれかに記載の椅子。   The pivoting portion between the seat frame and the intermediate portion of the front piece of the back frame is higher than the pivot portion of the base frame and the front end of the front piece of the back frame. Chairs. 基枠に設けた長孔を、斜め後上方に向かって傾斜させてなる請求項1〜4のいずれかに記載の椅子。   The chair according to any one of claims 1 to 4, wherein a long hole provided in the base frame is inclined obliquely rearward and upward. リクライニング機構が、ガススプリングを備え、該ガススプリングを、背凭れ内において背フレームと基枠の後端との間に、上下方向を向くように設けた請求項1〜5のいずれかに記載の椅子。
The reclining mechanism includes a gas spring, and the gas spring is provided between the back frame and the rear end of the base frame in the backrest so as to face in the vertical direction. Chair.
JP2004176591A 2004-06-15 2004-06-15 Chair Pending JP2006000144A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004176591A JP2006000144A (en) 2004-06-15 2004-06-15 Chair

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004176591A JP2006000144A (en) 2004-06-15 2004-06-15 Chair

Publications (1)

Publication Number Publication Date
JP2006000144A true JP2006000144A (en) 2006-01-05

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59184235U (en) * 1983-05-27 1984-12-07 三菱自動車工業株式会社 Seat frame structure
JPH0548747U (en) * 1991-12-04 1993-06-29 小糸工業株式会社 Vehicle reclining mechanism
JPH0613596U (en) * 1992-07-20 1994-02-22 メーコー工業株式会社 Office chair
JPH10127410A (en) * 1996-10-28 1998-05-19 Uchida Yoko Co Ltd Armrest fitting structure of chair
JP2000139611A (en) * 1998-11-16 2000-05-23 Takano Co Ltd Operating mechanism of gas spring
JP2001341563A (en) * 2000-06-02 2001-12-11 Fuji Kiko Co Ltd Vehicular seat device
JP2004105328A (en) * 2002-09-17 2004-04-08 Tenryu Ind Co Ltd Seat

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59184235U (en) * 1983-05-27 1984-12-07 三菱自動車工業株式会社 Seat frame structure
JPH0548747U (en) * 1991-12-04 1993-06-29 小糸工業株式会社 Vehicle reclining mechanism
JPH0613596U (en) * 1992-07-20 1994-02-22 メーコー工業株式会社 Office chair
JPH10127410A (en) * 1996-10-28 1998-05-19 Uchida Yoko Co Ltd Armrest fitting structure of chair
JP2000139611A (en) * 1998-11-16 2000-05-23 Takano Co Ltd Operating mechanism of gas spring
JP2001341563A (en) * 2000-06-02 2001-12-11 Fuji Kiko Co Ltd Vehicular seat device
JP2004105328A (en) * 2002-09-17 2004-04-08 Tenryu Ind Co Ltd Seat

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