JP2842116B2 - Swivel chair with footrest - Google Patents
Swivel chair with footrestInfo
- Publication number
- JP2842116B2 JP2842116B2 JP4355699A JP35569992A JP2842116B2 JP 2842116 B2 JP2842116 B2 JP 2842116B2 JP 4355699 A JP4355699 A JP 4355699A JP 35569992 A JP35569992 A JP 35569992A JP 2842116 B2 JP2842116 B2 JP 2842116B2
- Authority
- JP
- Japan
- Prior art keywords
- footrest
- height
- seat
- swivel chair
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Landscapes
- Chairs Characterized By Structure (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は、大人から子供まで体格
の異なる着座者に適用可能な足載せ台付き回転椅子に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swivel chair with a footrest that can be applied to occupants of different sizes from adults to children.
【0002】[0002]
【従来の技術】従来の学童用の椅子には、脚部に対して
座部の高さを調節可能となすとともに、脚部に取付けた
足載せ板も高さ調節可能となした構造のものが既に提供
されているが、この種の学童用椅子は、座部が回転しな
いものである。2. Description of the Related Art Conventional schoolchild chairs have a structure in which the height of a seat can be adjusted with respect to a leg and a height of a footrest plate attached to the leg can be adjusted. , But this kind of schoolchild chair has a non-rotating seat.
【0003】一方、通常の回転椅子には、多様な着座者
の体格に適用できるようにガスシリンダー等を用いて脚
部に対して座部の高さを調節可能となした構造のものが
極めて一般的に提供されている。しかし、脚部には足載
せ台を有しないものが普通である。On the other hand, a typical swivel chair has a structure in which the height of a seat can be adjusted with respect to a leg using a gas cylinder or the like so as to be applicable to various physiques of a seated person. Generally provided. However, the legs usually do not have a footrest.
【0004】ところで、座部を極端に高く設定すること
が必要なドラフター製図用等の特殊な用途の回転椅子で
は、脚部に足載せ台を設けた構造のものが存在する。例
えば、図8に示すように脚部aの支軸bに座部cを回転
可能且つ高さ調節可能に取付けるとともに、該支軸bの
所定高さ位置にリング状の足載せ台dを水平に固定した
構造の設計者用回転椅子である。[0004] By the way, there is a swivel chair for a special purpose such as drafter drafting which requires the seat portion to be set extremely high, and has a structure in which a footrest is provided on a leg portion. For example, as shown in FIG. 8, a seat c is rotatably attached to a support shaft b of a leg a so as to be adjustable in height, and a ring-shaped footrest d is horizontally placed at a predetermined height position of the support shaft b. This is a swivel chair designed for designers with a fixed structure.
【0005】しかし、前述の例で示した足載せ台の目的
は、ドラフターの高さに応じて座部を極端に高くする必
要があり、そのため着座者の足が床面から浮いてしまう
からである。仮に、この構造の足載せ台を通常使用する
回転椅子に適用しても、大人から子供まで体格の異なる
着座者全てに適用できる足載せ台付き回転椅子とはなら
ない。However, the purpose of the footrest shown in the above-mentioned example is that the seat portion needs to be extremely high in accordance with the height of the drafter, so that the foot of the occupant floats off the floor. is there. Even if this structure is applied to a commonly used swivel chair, it does not become a swivel chair with a footrest that can be applied to all occupants of different physiques from adults to children.
【0006】即ち、図9に示すように、机天板eの高さ
は略一定、例えば70cmに規格化されており、通常の
体格を有する大人が使用する場合には(図9(a) 参
照)、座部cの高さを調節して机天板e上での執務が楽
に行えるように最適な高さHに設定すると、座部cに着
座した状態で足は床面に載置され、膝は約90度に折れ
た座り心地のよい状態となる。一方、体格の小さい大人
若しくは小学生高学年程度の子供が使用する場合には
(図9(b) 参照)、座部cの高さをH+ΔHに設定し、
この座部cに着座し膝が約90度に折れた状態で足が足
載せ台dに載置されるように、この足載せ台dの高さh
を設定して設けておくことは従来の構造の回転椅子でも
可能である。しかし、体格の更に小さい小学生低学年程
度以下の子供が使用する場合には(図9(c) 参照)、座
部cの高さをH+ΔH+ΔH1 に設定する必要がある
が、足載せ台dは固定的であるので足が宙に浮いた状態
となり、座り心地のよい状態とはならない。図9(c) に
は仮想的に最適な高さh+Δh1 に設定した足載せ台
d′を記載している。ここで、ΔH:h=ΔH1 :Δh
となって人の体格は略相似形で変化することが判り、座
高及び膝下長さが体格に応じて略相似形で変化するが、
従来の足載せ台が固定された回転椅子であると、机上で
の執務に適するように座部の高さを座高に応じて設定す
る場合、座部と足載せ台の間隔も該座部の高さ調節分だ
け変化するので、膝下長さに適合できないことが多いか
らである。That is, as shown in FIG. 9, the height of the tabletop e is standardized to be substantially constant, for example, 70 cm, and when used by an adult having a normal physique (FIG. 9A) When the height of the seat c is adjusted to the optimal height H so that the work on the tabletop e can be performed easily, the foot is placed on the floor while sitting on the seat c. As a result, the knee is bent at about 90 degrees, and the seat is in a comfortable state. On the other hand, when an adult with a small physique or a child of about the upper grade of elementary school is used (see FIG. 9B), the height of the seat c is set to H + ΔH,
The height h of the footrest d is such that the foot is placed on the footrest d with the knees folded at about 90 degrees while sitting on the seat c.
Can be set and provided in a swivel chair having a conventional structure. However, (see FIG. 9 (c)) in the case where the smaller elementary school lower grades about children below the physique use, it is necessary to set the height of the seat c to H + ΔH + ΔH 1, stand d foot Because it is fixed, the feet float in the air, and the seat is not comfortable. Describes a footrest d 'set to virtually optimum height h + Delta] h 1 in FIG. 9 (c). Here, ΔH: h = ΔH 1 : Δh
It turns out that the physique of a person changes in a substantially similar shape, and the sitting height and the length under the knee change in a substantially similar shape according to the physique,
If the conventional footrest is a fixed swivel chair, if the height of the seat is set according to the sitting height so as to be suitable for work on the desk, the interval between the seat and the footrest will also be This is because it is often not possible to adapt to the length below the knee because the height is changed by the height adjustment.
【0007】[0007]
【発明が解決しようとする課題】本発明が前述の状況に
鑑み、解決しようとするところは、従来は着座者の座高
のみを考慮して座部を高さ調節可能となしていたのに対
し、着座者の体格に応じて膝下長さも相似形で変化する
ことに着目し、脚部に対して座部を高さ調節可能となし
た回転椅子において、着座者の体格に応じて座部の高さ
を調節した際に、該座部の高さに適するように足載せ部
の高さも調節して使用できる足載せ台付き回転椅子を提
供する点にある。SUMMARY OF THE INVENTION In view of the above situation, the present invention seeks to solve the problem that the height of the seat can be adjusted in consideration of only the sitting height of the occupant. Focusing on the fact that the length below the knee changes in a similar manner according to the physique of the seated person, and in a swivel chair with the height of the seat adjustable relative to the legs, the height of the seat is adjusted according to the physique of the seated person. It is an object of the present invention to provide a swivel chair with a footrest that can be used by adjusting the height of the footrest so as to be suitable for the height of the seat when the height is adjusted.
【0008】[0008]
【課題を解決するための手段】本発明は、前述の課題解
決のために、脚部に対して座部を高さ調節可能となした
回転椅子であって、座部と脚部の適所に設けた足載せ台
とを昇降機構にて連動させて高さ調節可能となし且つ座
部の昇降変化量に対して足載せ台の昇降変化量を定数倍
だけ大きく設定してなる足載せ台付き回転椅子を構成し
た。Means for Solving the Problems The present invention is, for the aforementioned problem solution, a rotating chair without the adjustable seat height with respect to the leg, in place of the seat and the leg Footrests provided
The height can be adjusted by linking the
Multiplied by the amount of change in height of the footrest to the amount of change in height of the part
A swivel chair with a footrest that was set as large as possible was constructed.
【0009】[0009]
【0010】更に具体的には、前記昇降機構として、前
記脚部に立設した支軸の上部外周に水平回転自在に支持
部材を取付けるとともに、該支持部材より下方の支軸に
水平回転自在且つ昇降自在に足載せ台を取付け、そして
連結杆の一端を前記支持部材に上下回転可能に枢支する
とともに、該連結杆の他端部に形成した長孔に前記足載
せ台の中央部に立設した支承片の上端を孔内遊動可能に
枢支し、更に前記座部に下設した連動杆の下端を前記連
結杆の中間部に形成した長孔に孔内遊動可能に枢支して
なる昇降機構を用いた足載せ台付き回転椅子を構成し
た。More specifically, as the elevating mechanism, a support member is horizontally rotatably mounted on an upper outer periphery of a support shaft erected on the leg portion, and is horizontally rotatable on a support shaft below the support member. A footrest is mounted so as to be able to move up and down, and one end of the connecting rod is pivotally supported by the supporting member so as to be vertically rotatable, and a standing hole is formed at the center of the footrest in an elongated hole formed at the other end of the connecting rod. The upper end of the provided support piece is pivotally supported so as to be freely movable in the hole, and the lower end of the interlocking rod provided below the seat is pivotally supported so as to be freely movable in the hole in the elongated hole formed in the intermediate portion of the connecting rod. A swivel chair with a footrest using a lifting mechanism was constructed.
【0011】[0011]
【作用】以上の如き内容からなる本発明の足載せ台付き
回転椅子は、机上での執務に適するように座部の高さを
座高に応じて設定するとともに、その高さ設定した座部
と足載せ台との間隔が最適になるように足載せ台の高さ
を調節して、座部と足載せ部の間隔を着座者の膝下長さ
に適合させるものである。According to the swivel chair with a footrest of the present invention having the above-mentioned contents, the height of the seat is set in accordance with the seat height so as to be suitable for work on a desk, and the seat having the set height is provided. The height of the footrest is adjusted so that the distance between the footrest and the footrest is optimal, and the distance between the seat and the footrest is adapted to the knee length of the seated person.
【0012】ここで、人の体格は略相似形で変化し、座
高及び膝下長さも同様に略相似形で変化するので、座部
と足載せ台とを昇降機構にて連動させて高さ調節可能と
なし且つ座部の昇降変化量に対して足載せ台の昇降変化
量を定数倍だけ大きく設定することによって、座部の高
さを調節することで自動的に足載せ台の高さを最適に調
節できるのである。Here, since the physique of the person changes in a substantially similar manner, and the height of the seat and the length under the knee also change in a substantially similar manner, the height of the seat is adjusted by linking the seat and the footrest with an elevating mechanism. The height of the footrest is automatically adjusted by adjusting the height of the seat by setting the height of the footrest to be a constant multiple of the height of the footrest with respect to the elevation change of the seat. It can be adjusted optimally.
【0013】更に、脚部に立設した支軸の上部外周に水
平回転自在に支持部材を取付けるとともに、該支持部材
より下方の支軸に水平回転自在且つ昇降自在に足載せ台
を取付け、そして連結杆の一端を前記支持部材に上下回
転可能に枢支するとともに、該連結杆の他端部に形成し
た長孔に前記足載せ台の中央部に立設した支承片の上端
を孔内遊動可能に枢支し、更に前記座部に下設した連動
杆の下端を前記連結杆の中間部に形成した長孔に孔内遊
動可能に枢支してなる昇降機構を用いることにより、座
部の通常の高さ調節操作に伴って足載せ台の高さを連動
させて調節することが可能となり、しかも該座部の昇降
変化量に対して足載せ台の昇降変化量を定数倍だけ大き
く設定することにより、どのような体格の着座者にも座
り心地がよい状態を実現できるのである。また、座部の
回転に伴って昇降機構を介して足載せ台も回転するの
で、着座した状態で座部を回転させても足が足載せ台の
一定位置に常に載置される。[0013] Further, a support member is horizontally rotatably mounted on an upper outer periphery of a support shaft erected on the leg, and a footrest is mounted on a support shaft below the support member so as to be horizontally rotatable and liftable. One end of the connecting rod is pivotally supported on the support member so as to be vertically rotatable, and the upper end of a support piece erected at the center of the footrest is moved in the long hole formed at the other end of the connecting rod in the hole. By using an elevating mechanism that pivotally supports the lower end of the interlocking rod provided on the seat and further rotatably supports the lower end of the interlocking rod in an intermediate hole of the connecting rod so that the lower end of the interlocking rod can freely move in the hole. It is possible to adjust the height of the footrest in conjunction with the normal height adjustment operation of the above, and to further increase the elevation change of the footrest by a constant multiple with respect to the elevation change of the seat. By setting, it is a comfortable state for occupants of any physique Than it can be achieved. In addition, since the footrest also rotates via the elevating mechanism with the rotation of the seat, even when the seat is rotated in a seated state, the foot is always placed at a fixed position on the footrest.
【0014】[0014]
【実施例】次に添付図面に示した実施例に基づき更に本
発明の詳細を説明する。図1及び図2は本発明の足載せ
台付き回転椅子の代表的実施例を示し、脚部1に座部2
を回転可能且つ高さ調節可能に取付けるとともに、該脚
部1の適所に足載せ台3を前記座部2に連動させて高さ
調節可能に設けたものである。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; 1 and 2 show a typical embodiment of a swivel chair with a footrest according to the present invention, in which a leg 1 has a seat 2.
Is mounted so as to be rotatable and adjustable in height, and a footrest 3 is provided at an appropriate position on the leg 1 so as to be adjustable in height in conjunction with the seat 2.
【0015】前記脚部1は、放射状に伸びた複数の支脚
4,…の先端部にそれぞれキャスター5,…を設けると
ともに、支脚4,…の中心部に支軸6を立設し、該支軸
6には伸縮自在且つ回転可能なガスシリンダー7が一部
上方へ突出状態で内装された通常の構造を有するもので
ある。尚、前記支軸6から突出したガスシリンダー7を
伸縮可能な蛇腹で覆ってもよい。The leg 1 is provided with casters 5,... At the distal ends of a plurality of radially extending supports 4, and a support shaft 6 is provided upright at the center of the supports 4,. The shaft 6 has a normal structure in which a gas cylinder 7 that is extendable and rotatable and is rotatable is partially installed so as to protrude upward. The gas cylinder 7 protruding from the support shaft 6 may be covered with a bellows which can be extended and contracted.
【0016】前記座部2は、前記ガスシリンダー7の上
端部に、座板8の下面を受ける取付体9を回転不能又は
回転可能に取付け、該座板8の両側後部から背凭れ杆1
0,10を立設し、その上部に背凭れ板11を取付けた
通常の構造を有するものである。尚、本実施例では、前
記座板8は弾性付勢力に抗して前方へ移動可能であり、
また前記背凭れ杆10は弾性付勢力に抗して後傾可能で
ある。The seat 2 is mounted on the upper end of the gas cylinder 7 with a mounting member 9 for receiving the lower surface of the seat plate 8 so as to be non-rotatable or rotatable.
It has a normal structure in which 0, 10 are erected, and a backrest plate 11 is mounted on the top. In this embodiment, the seat plate 8 can move forward against the elastic urging force,
The backrest rod 10 can be tilted rearward against the elastic urging force.
【0017】前記足載せ台3は、前記支軸6に回転自在
且つ昇降自在に外挿した筒体12の外周部から放射状に
伸びた複数の支杆13,…で円形のリング杆14を固定
したものである。従って、当該足載せ台3はリング杆1
4が水平状態を保って高さ調節可能であるとともに、支
軸6の回りに回転可能である。本実施例では、前記リン
グ杆14の上面が足載せ部15となっている。A circular ring rod 14 is fixed to the footrest 3 with a plurality of rods 13 extending radially from the outer periphery of a cylindrical body 12 which is rotatably and vertically lifted outside the spindle 6. It was done. Therefore, the footrest 3 is the ring rod 1
The height 4 can be adjusted while maintaining the horizontal state, and can be rotated around the support shaft 6. In this embodiment, the upper surface of the ring rod 14 serves as a footrest 15.
【0018】そして、前記座部2の高さ調節操作に連動
させて前記足載せ台3の高さ調節を行うための昇降機構
16を設けている。即ち、当該昇降機構16は、前記支
軸6の上部外周に水平回転自在に支持部材17を設ける
とともに、該支持部材17より下方位置に、前記支軸6
に外挿した足載せ台3の筒体12を配し、それから長尺
の連結杆18の一端を、支軸6から十分に側方に突出し
た前記支持部材17の突出部19の端部に上下回転可能
に枢軸20にて枢支するとともに、該連結杆18の他端
部にその長さ方向に沿って形成した長孔21に、前記足
載せ台3の中央部、例えば筒体12の側面から固定状態
で立設した支承片22の上端に突設したピン23を孔内
遊動可能に係着して枢支し、更に前記座部2の適所、例
えば前記取付体9に固定状態で下設した連動杆24の下
端に突設したピン25を、前記連結杆18の中間部、即
ち前記枢軸20と長孔21との間にその長さ方向に沿っ
て形成した長孔26に孔内遊動可能に係着して枢支して
構成した。An elevation mechanism 16 for adjusting the height of the footrest 3 in conjunction with the height adjustment operation of the seat 2 is provided. That is, the elevating mechanism 16 provides a support member 17 so as to be horizontally rotatable around the upper periphery of the support shaft 6, and the support shaft 6 is positioned below the support member 17.
The cylindrical body 12 of the footrest 3 is extrapolated from above, and one end of the long connecting rod 18 is attached to the end of the protruding portion 19 of the supporting member 17 which projects sufficiently laterally from the support shaft 6. The connecting rod 18 is pivotally supported so as to be able to rotate up and down, and the other end of the connecting rod 18 is formed along the longitudinal direction of the connecting rod 18 in the center of the footrest 3, for example, the cylindrical body 12. A pin 23 protruding from an upper end of a support piece 22 erected in a fixed state from the side is movably engaged in the hole to pivotally support the pin 23, and further fixed to a proper place of the seat portion 2, for example, to the mounting body 9. A pin 25 projecting from the lower end of the lower interlocking rod 24 is inserted into an intermediate portion of the connecting rod 18, that is, an elongated hole 26 formed between the pivot 20 and the elongated hole 21 along the length direction thereof. It is constructed so as to be pivotally supported by being movably engaged inside.
【0019】尚、本実施例では、前記連結杆18、支承
片22及び連動杆24は前記支持部材17の両側にそれ
ぞれ設けている。また、前記支持部材17を水平回転自
在に支軸6に取付ける構造としては、適宜な回転機構が
採用されるが、図例のものは支軸6の上部外周に環状溝
27を形成し、前記支持部材17に設けた円孔28を該
支軸6に外挿した状態で、該円孔28の内面に突設した
突部29を前記環状溝27にスライド係合させたもので
ある。ここで、前記突部29は円孔28の内周に沿って
環状に形成してもよく、また支持部材17の外部から螺
入したネジの先端部で代用することも可能である。ま
た、前記筒体12を支軸6に対して水平回転自在且つ昇
降自在となす構造としては、単に筒体12の内周面にス
ライダーを設けた構造やベアリングを介在させる構造が
採用される。In this embodiment, the connecting rod 18, the supporting piece 22 and the interlocking rod 24 are provided on both sides of the support member 17, respectively. As a structure for attaching the support member 17 to the support shaft 6 so as to be freely rotatable in the horizontal direction, an appropriate rotation mechanism is adopted, but in the illustrated example, an annular groove 27 is formed on the upper outer periphery of the support shaft 6, and In the state in which the circular hole 28 provided in the support member 17 is externally inserted into the support shaft 6, a protrusion 29 provided on the inner surface of the circular hole 28 is slidably engaged with the annular groove 27. Here, the protrusion 29 may be formed in an annular shape along the inner periphery of the circular hole 28, or may be replaced with a tip of a screw screwed from outside the support member 17. In addition, as a structure that allows the cylindrical body 12 to freely rotate and move up and down with respect to the support shaft 6, a structure in which a slider is simply provided on the inner peripheral surface of the cylindrical body 12 or a structure in which a bearing is interposed is employed.
【0020】しかして、前記座部2の座板8の高さをガ
スシリンダー7を操作して調節すると、その昇降に伴っ
て前記連動杆24がガスシリンダー7の軸線と平行に上
下変移して連結杆18を上下回転させ、それにより支承
片22がガスシリンダー7の軸線と平行に上下変移し、
もって足載せ台3を座部2に連動させて昇降させるので
ある。When the height of the seat plate 8 of the seat 2 is adjusted by operating the gas cylinder 7, the interlocking rod 24 moves up and down in parallel with the axis of the gas cylinder 7 as it moves up and down. By rotating the connecting rod 18 up and down, the bearing piece 22 is vertically moved parallel to the axis of the gas cylinder 7,
The footrest 3 is moved up and down in conjunction with the seat 2.
【0021】更に詳しく図3の機構図に基づいて前記昇
降機構16の動作を説明する。先ず、連動杆24、連結
杆18、支承片22及び足載せ台3が図中太線の状態に
あったとする。そこで、前記ガスシリンダー7によって
座板8がΔHだけ上昇すると、前記連結杆18が上方へ
所定角度回転してピン25が25′で示した位置までΔ
Hだけ上昇し、更にピン23が23′で示した位置まで
Δhだけ上昇し、もって足載せ台3の足載せ部15が1
5′で示した位置までΔhだけ上昇する。ここで、ΔH
とΔhとの関係は、前記枢軸20の中心からピン25の
中心を通る鉛直線、即ち連動杆24の中心線までの距離
をL1 とし、該中心線からピン23の中心を通る鉛直
線、即ち支承片22の中心線までの距離をL2 とする
と、三角形20,25,25′と三角形20,23,2
3′は相似形であるので、 ΔH:L1 =Δh:L1 +L2 の関係が成り立ち、従って、 Δh=(L1 +L2 )/L1 ・ΔH となり、足載せ部15の昇降変化量Δhは座板8の昇降
変化量ΔHの定数倍、即ち(L1 +L2 )/L1 倍だけ
大きくなる。例えば、L1 =L2 とすると、Δh=2Δ
Hとなり、足載せ部15は座板8より2倍だけ昇降変化
する。The operation of the lifting mechanism 16 will be described in more detail with reference to the mechanism diagram of FIG. First, it is assumed that the interlocking rod 24, the connecting rod 18, the support piece 22, and the footrest 3 are in the state of the thick line in the figure. Then, when the seat plate 8 is raised by ΔH by the gas cylinder 7, the connecting rod 18 is rotated upward by a predetermined angle, and the pin 25 is moved to a position indicated by 25 ′ by ΔH.
H, and the pin 23 further rises by Δh to the position indicated by 23 ′, so that the foot rest 15 of the foot rest 3
It rises by Δh to the position indicated by 5 ′. Where ΔH
Relationship between Δh is the vertical line passing through the center of the pin 25 from the center of the pivot 20, i.e. the distance to the center line of the associated rod 24 and L 1, a vertical line passing through the center of the pin 23 from the centerline, that is, the distance to the center line of the bearing piece 22 and L 2, a triangle and the triangle 20,25,25 '20,23,2
Since 3 ′ is a similar shape, the relationship of ΔH: L 1 = Δh: L 1 + L 2 holds, and therefore Δh = (L 1 + L 2 ) / L 1 .ΔH. Δh is increased by a constant multiple of the elevation change ΔH of the seat plate 8, that is, (L 1 + L 2 ) / L 1 times. For example, if L 1 = L 2 , Δh = 2Δ
H, the foot rest 15 moves up and down twice as much as the seat plate 8.
【0022】前記昇降機構16の特徴は、座部2の昇降
変化量に対して足載せ台3の昇降変化量を定数倍だけ大
きくなるように座部2と足載せ台3とを連動させること
にあるが、前述の実施例で示した機構に限定されるもの
ではなく、例えばガスシリンダー7の側面に直線状のラ
ックを設け、支軸6の上端に該ラックに噛合するピニオ
ンを設け、該ピニオンの回転を他の歯車を介して増幅
し、足載せ台3に設けたラックを駆動する歯車機構を用
いることも可能である。The lifting mechanism 16 is characterized in that the seat 2 and the footrest 3 are linked so that the amount of change in the height of the footrest 3 is larger than the amount of change in the height of the seat 2 by a constant multiple. However, the present invention is not limited to the mechanism shown in the above-described embodiment.For example, a linear rack is provided on the side surface of the gas cylinder 7, and a pinion that meshes with the rack is provided at the upper end of the support shaft 6. It is also possible to use a gear mechanism that amplifies the rotation of the pinion via another gear and drives a rack provided on the footrest 3.
【0023】ここで、通常の体格を有する大人が使用す
る場合には、通常の回転椅子と同様に前記ガスシリンダ
ー7を操作して座板8の高さを調節すると、座板8に着
座した状態で足は床面に載置され、膝は約90度に折れ
た座り心地のよい状態となる。このような着座状態を実
現できることは本発明の主題ではない。Here, when an adult having a normal physique is used, when the height of the seat plate 8 is adjusted by operating the gas cylinder 7 in the same manner as in a normal swivel chair, the user sits on the seat plate 8. In this state, the feet are placed on the floor surface, and the knees are bent at about 90 degrees so that the seat is comfortable. Achieving such a seated state is not the subject of the present invention.
【0024】しかして、本発明の足載せ台付き回転椅子
によれば、体格の小さい大人若しくは小学生高学年程度
の子供が使用する場合には、図4に示すように、床面か
らの座板8の高さを調節して、高さが規格化された机、
例えば高さ70cmの机の天板上での執務が楽に行える
ように座板8の高さH1 を設定し、その状態で座部2に
着座した着座者の膝が約90度に折れた姿勢でその足が
足載せ台3に載置されるように座板8と足載せ部15の
間隔h1 を初期設定する。当然、この高さ設定された回
転椅子に着座すると座り心地のよい状態となる。According to the swivel chair with a footrest of the present invention, as shown in FIG. 4, when a small-sized adult or a child of an elementary school age is used, as shown in FIG. Adjust the height of the desk, height standardized desk,
For example office on in the top plate height 70cm the desk set the height H 1 of the seat plate 8 to allow comfortably, knees of a seated person seated on the seat 2 in this state is folded about 90 degrees its foot posture initializes the distance h 1 of the seat plate 8 and the footrest 15 to be placed on the rests 3 feet. Naturally, when the user sits on the swivel chair set at this height, a comfortable state is achieved.
【0025】そして、体格の更に小さい小学生低学年程
度以下の子供が使用する場合には、図5に示すように座
部2を上昇させて床面からの座板8の高さを調節して、
机の天板上での執務が楽に行えるように座板8の高さH
2 (=H1 +ΔH)を設定すると、その動作に伴って足
載せ台3が前述の如く連動して上昇し、座板8と足載せ
部15の間隔h2 (=h1 +ΔH−Δh)が膝下長さに
適合するように最適設定され、座板8に着座した状態で
足は宙に浮くことなく足載せ部15に載置され、膝は約
90度に折れた座り心地のよい状態となる。In the case where a child who is smaller in elementary school age and lower in grade is used, the seat 2 is raised to adjust the height of the seat plate 8 from the floor as shown in FIG. ,
Height H of the seat plate 8 so that work on the desk top can be performed easily.
When 2 (= H 1 + ΔH) is set, the footrest 3 rises in conjunction with the movement as described above, and the interval h 2 between the seat plate 8 and the footrest 15 (= h 1 + ΔH−Δh). Is optimally set to conform to the length below the knee, the foot is placed on the footrest 15 without sitting in the air while sitting on the seat plate 8, and the knee is bent at about 90 degrees to provide a comfortable sitting state. Becomes
【0026】一般的に、体格が異なるとそれに応じて座
高が変化するので、座板8の最適な高さは座高に基づい
て調節される。従って、体格が小さくなると最適な座板
8の高さはH1 からH2 と高くなり、膝下長さに略対応
する座板8と足載せ部15との間隔もh1 からh2 と狭
くなる。換言すれば、体格が異なる着座者においても座
り心地よくなるように設定するには、座板8の高さ変化
量よりも足載せ部15の高さ変化量を大きくする必要が
あることを意味し、本発明の足載せ台3は正にこのよう
な設定が可能なものである。In general, if the physique is different, the sitting height changes accordingly. Therefore, the optimum height of the seat plate 8 is adjusted based on the sitting height. Accordingly, the height of the optimum seat plate 8 when the physique is smaller becomes higher from H 1 and H 2, the interval between the seat plate 8 and the footrest 15 which corresponds approximately to the knee length narrows from h 1 and h 2 Become. In other words, it means that the height change amount of the footrest 15 needs to be larger than the height change amount of the seat plate 8 in order to make the seating comfort even for occupants of different physiques. The setting of the footrest 3 of the present invention is exactly possible.
【0027】また、他の実施例として図6に示した足載
せ台付き回転椅子は、支軸6の上部と下部に固定した一
対の取付部材30,30に小型のガスシリンダー31を
取付け、そして該ガスシリンダー31の上方へ出没する
ロッド32に、前記同様の機構にて昇降自在に支軸6に
取付けた足載せ部15の適所から立設した吊下杆33の
上端を連結した構造のものである。本実施例では、座部
2の高さと足載せ台3の高さを独立させて調節できるよ
うになしたものである。In a swivel chair with a footrest shown in FIG. 6 as another embodiment, a small gas cylinder 31 is mounted on a pair of mounting members 30 fixed to the upper and lower portions of the support shaft 6, and The upper end of a suspension rod 33 erected from an appropriate position of a footrest 15 attached to the support shaft 6 so as to be able to move up and down by the same mechanism as described above, is connected to a rod 32 that protrudes and retracts above the gas cylinder 31. It is. In the present embodiment, the height of the seat 2 and the height of the footrest 3 can be adjusted independently.
【0028】更に、他の実施例として図7に示した足載
せ台付き回転椅子は、前述の如く支軸6に足載せ台3の
筒体12を昇降自在に外挿するとともに、該支軸6の側
面に上方が深く下方が浅い係合溝34を形成し、前記筒
体12の外部から螺入した調節ボルト35の先端を該係
合溝34に突き合い係合させ、その係合位置を上下変更
することによって足載せ台3の高さを調節できるように
なした構造のものである。Further, as another embodiment, the rotary chair with a footrest shown in FIG. 7 has the cylindrical body 12 of the footrest 3 mounted on the support shaft 6 so as to be able to move up and down as described above, and the support shaft. 6 is formed with an engagement groove 34 having a deep upper portion and a shallower lower portion, and the tip of an adjustment bolt 35 screwed from the outside of the cylindrical body 12 abuts and engages with the engagement groove 34. The height of the footrest 3 can be adjusted by changing the height up and down.
【0029】また、他の実施例として図示しないが、前
記支軸6の外周に雄ねじ部を形成し、前記足載せ台3の
筒体12の内周に雌ねじ部を形成し、両ねじ部を螺合し
て足載せ台3を回転させることによってその高さ調節を
行える構造も可能である。Although not shown as another embodiment, a male screw portion is formed on the outer periphery of the support shaft 6, and a female screw portion is formed on the inner periphery of the cylindrical body 12 of the footrest 3, and both screw portions are formed. A structure in which the height can be adjusted by screwing and rotating the footrest 3 is also possible.
【0030】[0030]
【発明の効果】以上にしてなる本発明の足載せ台付き回
転椅子は、脚部に対して座部を高さ調節可能となした回
転椅子であって、座部と脚部の適所に設けた足載せ台と
を昇降機構にて連動させて高さ調節可能となし且つ座部
の昇降変化量に対して足載せ台の昇降変化量を定数倍だ
け大きく設定してなるので、大人から子供まで体格の異
なる着座者が使用する場合、机上での執務に適するよう
に座部の高さを座高に応じて設定すると同時に、座部と
足載せ台との間隔を着座者の膝下長さに適合させること
ができ、もって座り心地のよい着座状態を実現できるの
である。特に、座部と足載せ台とを昇降機構にて連動さ
せて高さ調節可能となし且つ座部の昇降変化量に対して
足載せ台の昇降変化量を定数倍だけ大きく設定してなる
ことにより、座部の高さを調節することで自動的に足載
せ台の高さを最適に調節できるのである。 As described above, the swivel chair with a footrest according to the present invention is a swivel chair in which the height of the seat can be adjusted with respect to the leg, and is provided at an appropriate position between the seat and the leg. With a footrest
The height can be adjusted by interlocking with the lifting mechanism and the seat
The amount of change in height of the footrest is a constant multiple of the amount of change in height
When seated people of different physiques from adults to children use it, set the height of the seat according to the sitting height so that it is suitable for work on the desk, and at the same time, set the seat and footrest. Can be adapted to the length below the knees of the seated person, and a comfortable sitting state can be realized. In particular, the seat and the footrest are linked by the lifting mechanism.
The height can be adjusted and the amount of elevation change of the seat
The amount of elevation change of the footrest is set to be larger by a constant multiple
Automatically adjusts the height of the seat
The height of the platform can be adjusted optimally.
【0031】[0031]
【図1】本発明の足載せ台付き回転椅子の代表的実施例
を示す全体斜視図である。FIG. 1 is an overall perspective view showing a typical embodiment of a swivel chair with a footrest according to the present invention.
【図2】同じく一部断面で示した要部拡大側面図であ
る。FIG. 2 is an enlarged side view of a main part similarly shown in a partial cross section.
【図3】同じく要部の機構図である。FIG. 3 is a mechanism diagram of a main part.
【図4】本発明の足載せ台付き回転椅子の使用状態の一
設定例を示す回転椅子の側面図である。FIG. 4 is a side view of the swivel chair showing a setting example of a use state of the swivel chair with a footrest according to the present invention.
【図5】図4の状態から座部を上昇させた状態を示す回
転椅子の側面図である。FIG. 5 is a side view of the swivel chair showing a state where the seat is raised from the state of FIG. 4;
【図6】足載せ台付き回転椅子の他の実施例を示す側面
図である。FIG. 6 is a side view showing another embodiment of the swivel chair with a footrest.
【図7】足載せ台付き回転椅子の更に他の実施例を一部
断面で示した側面図である。FIG. 7 is a side view, partially in section, of yet another embodiment of a swivel chair with a footrest.
【図8】従来の回転椅子を示す全体斜視図である。FIG. 8 is an overall perspective view showing a conventional swivel chair.
【図9】着座者の体格に応じて座部と足載せ台の高さを
調節する様子を示した説明用簡略側面図である。FIG. 9 is a simplified side view for explanation showing how to adjust the height of a seat and a footrest according to the physique of a seated person.
1 脚部 2 座部 3 足載せ台 4 支脚 5 キャスター 6 支軸 7 ガスシリンダー 8 座板 9 取付体 10 背凭れ杆 11 背凭れ板 12 筒体 13 支杆 14 リング杆 15 足載せ部 16 昇降機構 17 支持部材 18 連結杆 19 突出部 20 枢軸 21 長孔 22 支承片 23 ピン 24 連動杆 25 ピン 26 長孔 27 環状溝 28 円孔 29 突部 30 取付部材 31 ガスシリンダー 32 ロッド 33 吊下杆 34 係合溝 35 調節ボルト Reference Signs List 1 leg 2 seat 3 footrest 4 support 5 caster 6 support shaft 7 gas cylinder 8 seat plate 9 mounting body 10 backrest rod 11 backrest plate 12 cylindrical body 13 support rod 14 ring rod 15 footrest part 16 lifting mechanism REFERENCE SIGNS LIST 17 support member 18 connecting rod 19 protrusion 20 pivot 21 long hole 22 support piece 23 pin 24 interlocking rod 25 pin 26 long hole 27 annular groove 28 circular hole 29 protrusion 30 mounting member 31 gas cylinder 32 rod 33 suspension rod 34 Groove 35 Adjustment Bolt
Claims (2)
た回転椅子であって、座部と脚部の適所に設けた足載せ
台とを昇降機構にて連動させて高さ調節可能となし且つ
座部の昇降変化量に対して足載せ台の昇降変化量を定数
倍だけ大きく設定してなることを特徴とする足載せ台付
き回転椅子。1. A swivel chair in which a height of a seat portion can be adjusted with respect to a leg portion, and a footrest provided at an appropriate position between the seat portion and the leg portion.
The height can be adjusted by linking the table with the lifting mechanism and
The amount of change in elevation of the footrest is constant with respect to the amount of elevation change in the seat.
A swivel chair with a footrest characterized by being set twice as large .
た支軸の上部外周に水平回転自在に支持部材を取付ける
とともに、該支持部材より下方の支軸に水平回転自在且
つ昇降自在に足載せ台を取付け、そして連結杆の一端を
前記支持部材に上下回転可能に枢支するとともに、該連
結杆の他端部に形成した長孔に前記足載せ台の中央部に
立設した支承片の上端を孔内遊動可能に枢支し、更に前
記座部に下設した連動杆の下端を前記連結杆の中間部に
形成した長孔に孔内遊動可能に枢支してなる昇降機構を
用いた請求項1記載の足載せ台付き回転椅子。2. As the lifting mechanism, a support member is mounted on the upper periphery of a support shaft erected on the leg portion so as to be horizontally rotatable, and a foot is provided on a support shaft below the support member so as to be rotatable and liftable. A mounting piece is mounted, and one end of a connecting rod is pivotally supported on the supporting member so as to be vertically rotatable, and a support piece is provided in a long hole formed in the other end of the connecting rod, and is provided upright at the center of the foot mounting base. A lifting mechanism that pivotally supports the upper end of the connecting rod so as to be freely movable in the hole, and further pivotally supports the lower end of the interlocking rod provided on the seat portion to be freely movable in the hole in a long hole formed in an intermediate portion of the connecting rod. claim 1, wherein the footrest with swivel chair using.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4355699A JP2842116B2 (en) | 1992-12-17 | 1992-12-17 | Swivel chair with footrest |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4355699A JP2842116B2 (en) | 1992-12-17 | 1992-12-17 | Swivel chair with footrest |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH06181827A JPH06181827A (en) | 1994-07-05 |
JP2842116B2 true JP2842116B2 (en) | 1998-12-24 |
Family
ID=18445316
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4355699A Expired - Lifetime JP2842116B2 (en) | 1992-12-17 | 1992-12-17 | Swivel chair with footrest |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2842116B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6695407B1 (en) * | 2002-08-26 | 2004-02-24 | Ming-Chuan Lin | Height adjusting device for stool |
ES1189235Y (en) * | 2017-06-30 | 2017-10-27 | Miguelez S L | SUPPORT FOR MASTIL AND STOOL FURNITURE STOOL |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3053159U (en) * | 1998-01-15 | 1998-10-23 | 健一 瀬戸口 | Stiff shoulder acupressure device applying leverage principle |
-
1992
- 1992-12-17 JP JP4355699A patent/JP2842116B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH06181827A (en) | 1994-07-05 |
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