JP2010069078A - Folding chair - Google Patents

Folding chair Download PDF

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JP2010069078A
JP2010069078A JP2008240823A JP2008240823A JP2010069078A JP 2010069078 A JP2010069078 A JP 2010069078A JP 2008240823 A JP2008240823 A JP 2008240823A JP 2008240823 A JP2008240823 A JP 2008240823A JP 2010069078 A JP2010069078 A JP 2010069078A
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seat
folding chair
waist
leg
front leg
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JP5172561B2 (en
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Toshimasa Ariake
敏昌 有明
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Aron Kasei Co Ltd
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Aron Kasei Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a folding chair suitable for a person with a humpback symptom. <P>SOLUTION: The folding chair 10 includes front legs 11, rear legs 12, and a seat 13 supported by the front legs 11 and the rear legs 12 from below. When the rear edge of the seat 13 is held and raised and the seat 13 is turned so that the upper surface of the seat 13 is on the front side, the front legs 11 and the rear legs 12 are brought close to each other and folded. The folding chair 10 is raised by itself in this folded state. In addition, a lower-back pad 14 for receiving the lower back of the user seated on the seat 13 is disposed on the rear legs 12 side of the front legs 11. The height H of the lower-back pad is set in the range: 100 mm≤H≤200 mm. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、高齢者、特に女性の高齢者に多い円背症(脊柱後湾症)の人などに適した折り畳み椅子に関するものである。   The present invention relates to a folding chair suitable for an elderly person, particularly a person with ankylosia (post-spondylosis), which is common among female elderly persons.

高齢者や身障者が使用する折り畳み椅子は、既に提供されている(例えば、特許文献1参照。)。このような椅子は、高齢者等が浴室内でシャワーを浴びる等の介護の際に、非常に有用である。
また、上記の椅子は、着座した者の姿勢を安定させるべく、背もたれが設けられていることが一般的である。このように背もたれが設けられていると、使用者が、背もたれに体をあずけることによって、腰から上の背中部分が後ろから支持されることとなり、長い時間、安定して座り続けることができる。
Folding chairs used by elderly people and the disabled have already been provided (see, for example, Patent Document 1). Such a chair is very useful for nursing care such as when elderly people take a shower in the bathroom.
Further, the chair is generally provided with a backrest in order to stabilize the posture of the person who is seated. When the backrest is provided in this way, the user can support the back from the back by placing the body on the backrest, and can continue to sit stably for a long time.

特開2007−37608号公報JP 2007-37608 A

しかしながら、従来の折り畳み椅子を、特に女性の高齢者に多い円背症(脊柱後湾症)の人が使用すると、着座した際に、図10bに示すように、その円背の突起部が前記背もたれに接触し、これにより痛みを感じたり、その部位に炎症を起こしたりすることがあった。
一方、円背の突起部が背もたれに当たらないように座ろうとすると、図11に示すように、無理な後傾姿勢で浅く腰掛けることとなり、今度は着座位置が座面の前方寄りとなって、使用者が座面前方から滑り落ちてしまう場合があるという問題があった。かかる問題は、水を使用する浴室内で用いる場合に、特に重大な問題となる。
However, when the conventional folding chair is used by a person with ankylosia (posterior syringomyelia), which is particularly common among elderly females, when the seat is seated, as shown in FIG. There was a case of touching the backrest, which caused pain and inflammation at the site.
On the other hand, when trying to sit so that the protrusion on the back of the circle does not hit the backrest, as shown in FIG. 11, it sits shallowly in an excessively tilted posture, this time the seating position is closer to the front of the seating surface, There was a problem that the user might slip off from the front of the seat. Such a problem becomes a particularly serious problem when used in a bathroom where water is used.

本発明は、上記課題を解決するためになされたものであり、前脚部と、後脚部と、該前脚部及び該後脚部によって下方から支持された状態で上面が座面となる座部とを備えた折り畳み椅子であって、前記座部の後脚部側には、該座部に着座した使用者の腰が当接する腰当て部が、該座面に対して上方に設けられていると共に、前記座面から前記腰当て部の上端までの鉛直高さである腰当て部高さHが、100mm≦H≦200mmとされていることを特徴とする折り畳み椅子である。   The present invention has been made to solve the above-described problems, and includes a front leg portion, a rear leg portion, and a seat portion whose upper surface is a seat surface in a state of being supported from below by the front leg portion and the rear leg portion. A stool is provided on the rear leg side of the seat portion, and a waist rest portion that abuts the waist of the user seated on the seat portion is provided above the seat surface. In addition, the folding chair is characterized in that a waist pad height H, which is a vertical height from the seat surface to the upper end of the waist pad, is 100 mm ≦ H ≦ 200 mm.

上記構成によれば、使用者の腰部を腰当て部で受けて支持することができるため、着座姿勢を安定化させることができると共に、該腰当て部は、低背に設定されるため、円背症状のある者が使用した場合でも、その円背の突起部が着座時に椅子へ接触することが避けられる。このため、本発明の折り畳み椅子は、安定な着座姿勢を保ちつつ、円背の痛みや悪化を防止することができ、快適な使用感を提供できる。   According to the above configuration, the user's waist can be received and supported by the waist rest, so that the sitting posture can be stabilized and the waist rest is set to a low profile, so Even when used by a person with a back symptom, it is possible to prevent the protrusion on the back of the circle from contacting the chair when seated. For this reason, the folding chair of the present invention can prevent a back pain and deterioration while maintaining a stable seating posture, and can provide a comfortable feeling of use.

なお、上記構成にあって、前記腰当て部の前面は、後方側へ湾曲した湾曲面とされており、該湾曲面に、前記座部に着座した使用者の腰が面接触する構成とすることが望ましい。   In addition, in the above configuration, the front surface of the waist pad portion is a curved surface curved backward, and the waist of the user seated on the seat portion is in surface contact with the curved surface. It is desirable.

かかる構成は、使用者の腰周りに対応して、腰当て部の前面を上記形状としたものであり、着座時においてさらに着座姿勢の安定化が図られる。   In such a configuration, the front surface of the waist pad portion has the above-mentioned shape corresponding to the circumference of the user's waist, and the seating posture can be further stabilized when sitting.

ここで、前記腰当て部は、横幅Wが、250mm≦W≦300mmとされ、湾曲深さXが、10mm≦X≦30mmとされていることが望ましい。   Here, it is desirable that the waist pad has a lateral width W of 250 mm ≦ W ≦ 300 mm and a bending depth X of 10 mm ≦ X ≦ 30 mm.

横幅Wが上記範囲内に設定され、湾曲深さXが上記範囲内に設定されると、円背症状である使用者の着座姿勢が最適となる。   When the lateral width W is set within the above range and the bending depth X is set within the above range, the seating posture of the user who is a spinal symptom is optimal.

また、前記腰当て部は、クッション材からなる構成としてもよい。   In addition, the waist pad portion may be made of a cushion material.

かかる構成は、使用者の腰がクッション部分に当接して支持されるため、着座姿勢が安定化すると共に、椅子への接触による痛みが低減されて、長時間の使用が可能となる。   In such a configuration, the user's waist is supported by being in contact with the cushion portion, so that the sitting posture is stabilized, and pain due to contact with the chair is reduced, so that it can be used for a long time.

また、これまでに述べた構成にあっては、該座部の後脚部側を後方として、該座部の後縁を掴んで持ち上げ、該座部の上面が前側となるように該座部を回動させ、さらに該前脚部と該後脚部とを互いに接近させて折り畳み、折り畳んだ状態で自立するものが望ましい。   Further, in the configuration described so far, the rear portion of the seat portion is set as the rear, the rear edge of the seat portion is grasped and lifted, and the seat portion is arranged so that the upper surface of the seat portion is the front side. It is desirable that the front leg portion and the rear leg portion are folded close to each other and folded so that they stand independently in the folded state.

特に円背症状を患う使用者は、高齢で介護を要する場合が多いところ、本発明は、介護者が片方の手で使用者を抱きかかえるなどして介助しつつ、他方の手で当該椅子を折り畳んで持ち運ぶなどの作業を行うことが可能となる。また、該椅子は、折り畳んだ状態で自立するため、壁に立てかけたりする必要もない。さらに、前記座部の上面は、折り畳み状態で前側に向くため、見栄えが良い。   In particular, a user who suffers from a spine symptom is often elderly and needs care, but the present invention supports the caregiver by holding the user with one hand while holding the chair with the other hand. It is possible to perform work such as folding and carrying. Further, since the chair stands on its own in a folded state, it is not necessary to lean against the wall. Furthermore, since the upper surface of the seat portion faces the front side in the folded state, the appearance is good.

本発明の折り畳み椅子は、使用者の腰を支持する腰当て部を備えているため、着座姿勢が安定するという効果があると共に、該腰当て部の腰当て部高さHが上記範囲に設定されているため、特に円背症状を患う使用者が使用した場合に、その円背の突起部が椅子に接触せず、使用時に痛みがないという優れた効果がある。   Since the folding chair of the present invention includes a waist support portion that supports the user's waist, the seating posture is stabilized, and the waist support portion height H of the waist support portion is set in the above range. Therefore, particularly when used by a user who suffers from a back symptom, the protrusion on the back does not contact the chair, and there is an excellent effect that there is no pain during use.

以下、本発明の折り畳み椅子を具体化した一実施形態を、添付図面に従って説明する。
図1等に示すように、折り畳み椅子10は、左右一対の前脚部11と、左右一対の後脚部12と、該左右一対の前脚部11及び該左右一対の後脚部12によって下方から支持される座部13とを備えている。また、該折り畳み椅子10は、前記座部13の後方に、腰当て部14を備えている。なお、該腰当て部14は、本発明の要部に係るため、後で詳述する。
DESCRIPTION OF EMBODIMENTS Hereinafter, an embodiment embodying a folding chair of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1 and the like, the folding chair 10 is supported from below by a pair of left and right front legs 11, a pair of left and right rear legs 12, the pair of left and right front legs 11, and the pair of left and right rear legs 12. The seat portion 13 is provided. In addition, the folding chair 10 includes a waist pad portion 14 behind the seat portion 13. In addition, since this waist pad part 14 concerns on the principal part of this invention, it explains in full detail later.

図4,5に示すように、前記前脚部11の各上端部には、座側枠部16が各々後方へ向けて延長形成されている。さらに、各座側枠部16の後端部には、コの字形の腰当て枠17が、左右の各座側枠部16を繋ぐようにして、上方へ向けて延長形成されている。
なお、これまでに述べた左右一対の前脚部11、左右一対の座側枠部16、及び腰当て枠17は、1本のアルミ製パイプが屈曲形成されて構成されている。
As shown in FIGS. 4 and 5, seat-side frame portions 16 are formed at the upper ends of the front leg portions 11 so as to extend rearward. Further, a U-shaped waistrest frame 17 is formed at the rear end of each seat side frame portion 16 so as to extend upward so as to connect the left and right seat side frame portions 16.
In addition, the pair of left and right front legs 11, the pair of left and right seat side frames 16, and the waist support frame 17 described so far are formed by bending one aluminum pipe.

また、図5に示すように、上記前脚部11は、前脚上部パイプ11Aと、前脚下部パイプ11Bとからなり、該前脚上部パイプ11Aには、該前脚下部パイプ11Bが摺動可能に外挿されている。そして、該前脚下部パイプ11Bを摺動させて、脚長さを調整可能としている。
更に詳述すると、該前脚上部パイプ11A内には、挿通ピン11Dが具備されており、該挿通ピン11Dは、該前脚上部パイプ11Aの内部から付勢されることによって、該前脚上部パイプ11Aの外周面上に突出している。一方、該前脚下部パイプ11Bには、複数の係止孔11Cが設けられている。かかる構成にあって、該前脚部11の長さ調節時には、該挿通ピン11Dを該前脚上部パイプ11A内に押し込みつつ、該前脚上部パイプ11Aに対して該前脚下部パイプ11Bを移動させ、該挿通ピン11Dを所定の係合孔11Cに係合させる。そうすると、該前脚下部パイプ11Bが、該前脚上部パイプ11Aに対して固定される。このような手順に基づき、係合孔11Cを適宜選択して、該前脚部11の長さを変更することができる。なお、該前脚下部パイプ11Bの下端には、ゴム製の滑り止めキャップ11Eが取り付けられており、該前脚部11が床上で滑ることを抑制している。
Further, as shown in FIG. 5, the front leg portion 11 comprises a front leg upper pipe 11A and a front leg lower pipe 11B. The front leg lower pipe 11B is slidably attached to the front leg upper pipe 11A. It is inserted. The front leg lower pipe 11B is slid to adjust the leg length.
More specifically, an insertion pin 11D is provided in the front leg upper pipe 11A, and the insertion pin 11D is urged from the inside of the front leg upper pipe 11A, whereby the front leg upper pipe 11A is It protrudes on the outer peripheral surface. On the other hand, the front leg lower pipe 11B is provided with a plurality of locking holes 11C. In this configuration, when the length of the front leg portion 11 is adjusted, the front leg lower pipe 11B is moved relative to the front leg upper pipe 11A while pushing the insertion pin 11D into the front leg upper pipe 11A. The insertion pin 11D is engaged with a predetermined engagement hole 11C. Then, the front leg lower pipe 11B is fixed to the front leg upper pipe 11A. Based on such a procedure, the length of the front leg portion 11 can be changed by appropriately selecting the engagement hole 11C. A rubber anti-slip cap 11E is attached to the lower end of the front leg lower pipe 11B to prevent the front leg 11 from slipping on the floor.

一方、図4,5に示すように、前記後脚部12の各上端部には、座支持枠部21が各々前方へ向けて延長形成されている。そして、図1,2,5に示すように、前記座側枠部16と、前記座支持枠部21の上縁に、板状部材からなる座部13が配設されている。該座部13は、幅360mm、奥行き300mmの寸法とされ、その上面が座面13Bとして使用される。
なお、上述の左右一対の後脚部12、及び左右一対の座支持枠部21は、1本のアルミ製パイプが屈曲形成されて構成されている。
On the other hand, as shown in FIGS. 4 and 5, seat support frame portions 21 are formed at the upper ends of the rear leg portions 12 so as to extend forward. As shown in FIGS. 1, 2, and 5, a seat portion 13 made of a plate-like member is disposed on the upper edge of the seat side frame portion 16 and the seat support frame portion 21. The seat portion 13 has a width of 360 mm and a depth of 300 mm, and its upper surface is used as the seat surface 13B.
The pair of left and right rear leg portions 12 and the pair of left and right seat support frame portions 21 are formed by bending one aluminum pipe.

また、図5に示すように、該後脚部12は、後脚上部パイプ12Aと、該後脚上部パイプ12Aに外挿された後脚下部パイプ12Bとを有している。該後脚上部パイプ12A内には、挿通ピン12Dが具備されており、該挿通ピン12Dは、該後脚上部パイプ12Aの内部から付勢されることによって、該後脚上部パイプ12Aの外周面上に突出している。一方、該後脚下部パイプ12Bには、複数の係止孔12Cが設けられている。そして、前脚部11と同様の構成により、該後脚部12の長さを変更することができる。
さらに、該後脚下部パイプ12Bの下端には、ゴム製の滑り止めキャップ12Eが取り付けられ、該後脚部12が床上で滑ることを抑制している。
Further, as shown in FIG. 5, the rear leg portion 12 includes a rear leg upper pipe 12A and a rear leg lower pipe 12B which is extrapolated to the rear leg upper pipe 12A. An insertion pin 12D is provided in the rear leg upper pipe 12A. The insertion pin 12D is urged from the inside of the rear leg upper pipe 12A, so that an outer peripheral surface of the rear leg upper pipe 12A is provided. Protrudes upwards. On the other hand, the rear leg lower pipe 12B is provided with a plurality of locking holes 12C. The length of the rear leg portion 12 can be changed by the same configuration as that of the front leg portion 11.
Further, a rubber non-slip cap 12E is attached to the lower end of the rear leg lower pipe 12B to prevent the rear leg 12 from sliding on the floor.

次に、折り畳み椅子10の折り畳み機構について説明する。
図1等に示すように、左右の前脚部11の上端部間には、リンクバー18が水平に差渡されている。さらに、左右の座側枠部16の前端部間には、前側支持バー19が水平に差渡されている(図4、図5参照)。一方、上記左右の座側枠部16の後端部間には、ロックバー20が水平に差渡されている(図4、図5参照)。また、左右の該座支持枠部21の後端部間には、後側支持バー22が差渡されている(図4、図5参照)。
Next, the folding mechanism of the folding chair 10 will be described.
As shown in FIG. 1 and the like, a link bar 18 is horizontally passed between the upper end portions of the left and right front leg portions 11. Further, a front support bar 19 is horizontally passed between the front end portions of the left and right seat side frame portions 16 (see FIGS. 4 and 5). On the other hand, a lock bar 20 is horizontally passed between the rear end portions of the left and right seat side frame portions 16 (see FIGS. 4 and 5). Further, a rear support bar 22 is passed between the rear end portions of the left and right seat support frame portions 21 (see FIGS. 4 and 5).

さらに、前記座支持枠部21の先端(前端)には、回動座13Aが枢着されている。該回動座13Aは、前記座部13の下面であって、該座部13の前後方向における中間位置に配置される。かかる構成により、前記後脚部12は、該座支持枠部21とともに、該座部13に対し、上下方向で回動自在となる。   Further, a pivot seat 13A is pivotally attached to the front end (front end) of the seat support frame portion 21. The rotating seat 13A is disposed on the lower surface of the seat portion 13 at an intermediate position in the front-rear direction of the seat portion 13. With this configuration, the rear leg portion 12 is rotatable in the vertical direction with respect to the seat portion 13 together with the seat support frame portion 21.

また、該座支持枠部21と、その外側に配置されている左右の該座側枠部16とは、回動軸23により、前後方向の中間部で互いに枢着されている。その結果、後脚部12及び座支持枠部21、並びに、前脚部11及び座側枠部16は、該回動軸23を中心に、相対的に上下方向で回動自在となる。   Further, the seat support frame portion 21 and the left and right seat side frame portions 16 disposed outside the seat support frame portion 21 are pivotally attached to each other at an intermediate portion in the front-rear direction by a rotation shaft 23. As a result, the rear leg portion 12 and the seat support frame portion 21, and the front leg portion 11 and the seat side frame portion 16 are relatively rotatable in the vertical direction around the rotation shaft 23.

また、該座部13の下面で前部には、リンク座13Cが設けられている。さらに、該リンク座13Cと、該前脚部11のリンクバー18との間には、リンク24が差渡されている。該リンク24は、該座部13を該座支持枠部21に対して上下方向に回動させた場合に、該座部13に連動して該前脚部11及び該座側枠部16を、該後脚部12及び該座支持枠部21に対して回動させるように機能する。
なお、本発明の折り畳み椅子10にあっては、リンクバー18を省略し、該リンク24を該座部13の前部のリンク座13Cと、該左右一対の前脚部11の上部との間に差渡してもよい。
Further, a link seat 13 </ b> C is provided at the front portion of the lower surface of the seat portion 13. Further, a link 24 is passed between the link seat 13 </ b> C and the link bar 18 of the front leg portion 11. The link 24 moves the front leg portion 11 and the seat side frame portion 16 in conjunction with the seat portion 13 when the seat portion 13 is rotated in the vertical direction with respect to the seat support frame portion 21. It functions to rotate with respect to the rear leg portion 12 and the seat support frame portion 21.
In the folding chair 10 of the present invention, the link bar 18 is omitted, and the link 24 is placed between the link seat 13C at the front portion of the seat portion 13 and the upper portions of the pair of left and right front leg portions 11. You may hand it over.

該座部13の下面で前後方向の中間部より前側には、左右一対の前側支持座13Dが設けられている。該前側支持座13Dは、該座側枠部16の該前側支持バー19に上から当接している。これにより、該座部13が、該前側支持座13Dを介して、左右の該座側枠部16の間で該前側支持バー19上に支持される。
また該座部13の下面で前後方向の中間部より後側には、左右一対の後側支持座13Eが設けられている。該後側支持座13Eは、該座支持枠部21の該後側支持バー22に上から当接している。これにより、該座部13が、該後側支持座13Eを介して、該後側支持バー22上に支持されることとなり、左右の該座支持枠部21の上に配置される。
A pair of left and right front support seats 13 </ b> D are provided on the lower surface of the seat portion 13 in front of the middle portion in the front-rear direction. The front support seat 13D is in contact with the front support bar 19 of the seat side frame portion 16 from above. Accordingly, the seat portion 13 is supported on the front support bar 19 between the left and right seat side frame portions 16 via the front support seat 13D.
A pair of left and right rear support seats 13E are provided on the lower surface of the seat portion 13 on the rear side from the middle portion in the front-rear direction. The rear support seat 13E is in contact with the rear support bar 22 of the seat support frame portion 21 from above. Accordingly, the seat portion 13 is supported on the rear support bar 22 via the rear support seat 13E, and is disposed on the left and right seat support frame portions 21.

また、図7(a)に示すように、該座部13の後端部には、横長の開口部13Fが開口され、かつ該開口部13Fの周縁部分からなる差し渡し箇所により把手25が構成されている。さらに、該把手25よりも下方には、操作ハンドル26が設けられている。   Further, as shown in FIG. 7A, a laterally long opening 13F is opened at the rear end portion of the seat portion 13, and a handle 25 is constituted by a passing portion composed of a peripheral portion of the opening 13F. ing. Further, an operation handle 26 is provided below the handle 25.

前記操作ハンドル26は、左右一対の係合爪27と、左右の該係合爪27の先端部間(前端部間)に差渡された断面横L字状の連結棒28と、後端部間に差渡された丸棒状の掴みバー29とからなる。該操作ハンドル26において、各係合爪27の一側面(外側面)における先端部には、軸30が設けられている。該操作ハンドル26は、軸30が該座部13の後縁部下面で凹部13Fの内側に枢着されることにより、該軸30を中心に、該掴みバー29が把手25に接近又は離間するようにして上下方向へ回動できるように取り付けられている(図7(a),(b)参照)。また、該掴みバー29は、該把手25と平行で、かつ該座部13の後縁よりも後方に突出しないように配置されている。
さらに、該係合爪27の後端部上面と、該座部13の後縁部下面で凹部13Fの天面部13Gとの間には、バネ31が設けられている。該バネ31は、該掴みバー29が該把手25から離間する方向(下方向)に、該操作ハンドル26を常時付勢している。そして、該バネ31の付勢力によって付勢された該操作ハンドル26は、該係合爪27を該ロックバー20に係合させている。
The operation handle 26 includes a pair of left and right engaging claws 27, a connecting rod 28 having an L-shaped cross section passed between the front end portions (between the front end portions) of the left and right engaging claws 27, and a rear end portion. It consists of a round bar-shaped grip bar 29 passed between them. In the operation handle 26, a shaft 30 is provided at the tip of one side surface (outer surface) of each engagement claw 27. When the shaft 30 is pivotally attached to the inside of the recess 13F on the lower surface of the rear edge of the seat portion 13, the grip bar 29 approaches or separates from the handle 25 around the shaft 30. Thus, it is attached so that it can be rotated in the vertical direction (see FIGS. 7A and 7B). Further, the grip bar 29 is arranged so as to be parallel to the handle 25 and not to protrude rearward from the rear edge of the seat portion 13.
Further, a spring 31 is provided between the upper surface of the rear end portion of the engagement claw 27 and the lower surface of the rear edge portion of the seat portion 13 and the top surface portion 13G of the recess 13F. The spring 31 constantly urges the operation handle 26 in a direction (downward) in which the grip bar 29 is separated from the handle 25. The operation handle 26 urged by the urging force of the spring 31 engages the engagement claw 27 with the lock bar 20.

ここで、該掴みバー29は、該座部13の後縁よりも後方に突出しないように配置されているため、折り畳み椅子10の使用時に、該掴みバー29に使用者の体が当たったり、タオル等が引っ掛かったり、使用時に誤って該係合爪27と該ロックバー20の係合が解除されたりすることが防止されている。
また、該係合爪27を左右一対とし、該ロックバー20の左右2箇所に係合させているため、該係合爪27による該ロックバー20の固定は確実なものとなる。
Here, since the grip bar 29 is arranged so as not to protrude rearward from the rear edge of the seat portion 13, when the folding chair 10 is used, the user's body hits the grip bar 29, It is prevented that a towel or the like is caught or the engagement claw 27 and the lock bar 20 are disengaged by mistake during use.
Further, since the engaging claws 27 are paired on the left and right sides and are engaged with the left and right portions of the lock bar 20, the lock bar 20 is securely fixed by the engaging claws 27.

これまでに述べた構成に基づき、折り畳み椅子10は、次の手順で折り畳まれる。
折り畳み椅子10を折り畳む際には、まず片手で座部13の後縁の把手25と掴みバー29の両方を共に掴んで、座部13のロックを解除する。次に、把手25と掴みバー29の両方を掴んだまま、座部13を持ち上げると、該座部13の座面13Bが前側となるように該座部13が回動すると共に、前脚部11と後脚部12とが互いに接近し始める。このとき、折り畳み椅子10の前後方向における把手25の位置と、折り畳み椅子10の重心の位置とが若干ずれているが、前脚部11と後脚部12がそれぞれ接地したまま床上を滑って接近するので、折り畳み椅子10が傾くことはない。そして更に、座部13を持ち上げると、前脚部11と後脚部12とが接近し終わり、床から離れて折り畳み椅子10の折り畳みが完了する。
Based on the configuration described so far, the folding chair 10 is folded in the following procedure.
When folding the folding chair 10, first, both the handle 25 and the grip bar 29 on the rear edge of the seat 13 are grasped together with one hand to unlock the seat 13. Next, when the seat portion 13 is lifted while holding both the grip 25 and the grip bar 29, the seat portion 13 is rotated so that the seat surface 13B of the seat portion 13 is on the front side, and the front leg portion 11 is moved. And the rear leg 12 begin to approach each other. At this time, the position of the handle 25 in the front-rear direction of the folding chair 10 and the position of the center of gravity of the folding chair 10 are slightly shifted, but the front leg portion 11 and the rear leg portion 12 slide on the floor and approach each other. Therefore, the folding chair 10 does not tilt. Further, when the seat portion 13 is lifted, the front leg portion 11 and the rear leg portion 12 come close to each other, and the folding of the folding chair 10 is completed away from the floor.

このように折り畳み椅子10が折り畳まれた状態であり、かつ座部13の把手25が掴まれて該折り畳み椅子10が持ち上げられた状態では、折り畳み椅子10の前後方向における把手25の位置と、椅子10の重心の位置とが一致するように設定されているため、椅子10は傾くことなく垂直状態を維持する。このため、折り畳み状態のままの椅子10は、再び床に静置するだけで自立する。   When the folding chair 10 is folded and the handle 25 of the seat 13 is gripped and the folding chair 10 is lifted, the position of the handle 25 in the front-rear direction of the folding chair 10 and the chair Since the position of the center of gravity of 10 matches, the chair 10 maintains a vertical state without tilting. For this reason, the chair 10 in the folded state becomes independent only by resting on the floor again.

次に、掴みバー29の係合機構について、詳述する。
図7(b),(c)に示すように、該折り畳み椅子10の折り畳み時において、該座部13の後縁を掴むときは、該掴みバー29が該把手25と平行に配置されているため、該把手25を握り込むようにして、該把手25とともに該掴みバー29を掴むことができる。その結果、該把手25を握り込むという自然な動作でありながら、手のひら全体で力を加えて掴みバー29を動かすことができ、握力のない者、特に高齢者、身障者であっても掴みバー29の操作を楽に行うことができる。
Next, the engagement mechanism of the grip bar 29 will be described in detail.
As shown in FIGS. 7B and 7C, when the folding chair 10 is folded, when the rear edge of the seat 13 is gripped, the grip bar 29 is arranged in parallel with the handle 25. Therefore, the grip bar 29 can be gripped together with the grip 25 by gripping the grip 25. As a result, the grip bar 29 can be moved by applying force to the entire palm while being a natural operation of grasping the grip 25, and even for those who do not have a grip force, particularly elderly people and disabled persons, the grip bar 29 Can be operated easily.

また、上記のように該把手25とともに該掴みバー29を掴めば、該掴みバー29の移動に伴い、該バネ31の付勢力に抗して該操作ハンドル26全体が軸30を中心に上方へ回動し、該係合爪27と該ロックバー20の係合が解除される。このとき、左右の該係合爪27は、該連結棒28と該掴みバー29で繋がれているため、該掴みバー29を動かすことにより、左右の係合爪27が連動して動き、該ロックバー20に対する左右の係合爪27の係合解除操作を一度で確実に行うことができる。   If the grip bar 29 is gripped together with the handle 25 as described above, the operation handle 26 as a whole moves upward about the shaft 30 against the biasing force of the spring 31 as the grip bar 29 moves. By rotating, the engagement between the engagement claw 27 and the lock bar 20 is released. At this time, since the left and right engaging claws 27 are connected by the connecting rod 28 and the gripping bar 29, by moving the gripping bar 29, the left and right engaging claws 27 move in conjunction, The disengagement operation of the left and right engaging claws 27 with respect to the lock bar 20 can be reliably performed at one time.

さらに、図7(c)に示すように、該係合爪27と該ロックバー20の係合が解除された後、使用者は、該把手25を握り込んだまま、該座部13の後縁を掴んで持ち上げれば、リンク24により、該座部13に連動して前脚部11が後脚部12に接近するように動き、また後脚部12も前脚部11に接近するように動いて、該折り畳み椅子10が折り畳まれる。   Further, as shown in FIG. 7 (c), after the engagement of the engagement claw 27 and the lock bar 20 is released, the user holds the handle 25 while holding the handle 25. If the edge is grasped and lifted, the link 24 moves so that the front leg portion 11 approaches the rear leg portion 12 in conjunction with the seat portion 13, and the rear leg portion 12 also moves so as to approach the front leg portion 11. Thus, the folding chair 10 is folded.

上記折り畳み方法において、座部13の後縁を掴んで持ち上げることは、両手を使わずとも片手で行うことができる。すなわち、前脚部11及び後脚部12の動きにおいて、これら前脚部11及び後脚部12は、該座部13の後縁を掴んで持ち上げた場合、それぞれの重さにより、該座部13に吊られるようにして自然に動く。   In the folding method, the rear edge of the seat 13 can be grasped and lifted with one hand without using both hands. That is, in the movement of the front leg portion 11 and the rear leg portion 12, when the front leg portion 11 and the rear leg portion 12 are lifted by grasping the rear edge of the seat portion 13, the weight of each of the front leg portion 11 and the rear leg portion 12 is increased. It moves naturally as if hung.

図8,9に示すように、折り畳んだ状態の折り畳み椅子10においては、座側枠部16と座支持枠部21とが互いの前後方向の中間部でそれぞれ枢着されているため、前脚部11と後脚部12とが間を空けて前後方向に並ぶように配置される。このため、折り畳んだ状態の折り畳み椅子10は、前脚部11と後脚部12で支持させることにより、上述のように自立させることができる。
また、折り畳んだ状態の折り畳み椅子10は、該座部13の該把手25を掴んで持ち運びされる。つまり、折り畳んだ状態の該折り畳み椅子10にあっては、腰当て部14を持つ場合に比べ、該座部13の該把手25から前脚部11あるいは後脚部12の下端までの長さが短いため、前脚部11あるいは後脚部12が床につきにくい。従って、力のない者、特に高齢者、身障者であっても、前脚部11あるいは後脚部12が床につかないように持ち上げやすく、このため前脚部11あるいは後脚部12を床に引きずらせながら持ち運ぶような不具合が解消される。
As shown in FIGS. 8 and 9, in the folding chair 10 in the folded state, the seat side frame portion 16 and the seat support frame portion 21 are pivotally attached to each other in the middle portion in the front-rear direction. 11 and the rear leg portion 12 are arranged so as to be arranged in the front-rear direction with a space therebetween. For this reason, the folding chair 10 in the folded state can be made independent as described above by being supported by the front leg portion 11 and the rear leg portion 12.
The folded chair 10 in a folded state is carried by grasping the handle 25 of the seat portion 13. In other words, in the folded chair 10 in the folded state, the length from the handle 25 of the seat portion 13 to the lower end of the front leg portion 11 or the rear leg portion 12 is shorter than when the waist rest portion 14 is provided. Therefore, the front leg portion 11 or the rear leg portion 12 is difficult to touch the floor. Accordingly, even a person who is not strong, particularly an elderly person or a handicapped person, can easily lift the front leg part 11 or the rear leg part 12 so as not to touch the floor, so that the front leg part 11 or the rear leg part 12 is dragged to the floor. Troubles to carry are eliminated.

また、該折り畳み椅子10は、折り畳み状態で、該座部13の座面13Bが前側となる。該座部13にあっては、その下面に回動座13A、リンク座13C、前側支持座13D、後側支持座13E、操作ハンドル26等、見映えを低下させる様々なものが配置されているが、折り畳み状態において、全て隠れることとなるため、見映えが良い。   Further, the folding chair 10 is in a folded state, and the seat surface 13B of the seat portion 13 is the front side. In the seat portion 13, various things such as a rotating seat 13 </ b> A, a link seat 13 </ b> C, a front support seat 13 </ b> D, a rear support seat 13 </ b> E, an operation handle 26 and the like are disposed on the lower surface. However, since everything is hidden in the folded state, it looks good.

次に、本発明の要部である腰当て部14について説明する。
本発明の特徴部分である腰当て部14(ランバーサポート)は、プラスチックのブロー成型品で構成され、前記腰当て枠17における中央の水平部分に配設されている。また、その前面14Aは、後方側へ湾曲した湾曲面とされている。これは、腰当て部14の前面14Aを着座した使用者の腰周りに対応させるためであり、該湾曲面には、着座した使用者の腰が面接触する(図10a参照)。
なお、該腰当て部14は、発泡EVAからなるクッション材料で構成されたパッド型のものとするのが望ましい。このように、腰当て部14にクッション材料を用いた場合は、着座時の痛みを抑制できる。
Next, the waist pad 14 which is a main part of the present invention will be described.
The waist pad 14 (lumbar support), which is a characteristic part of the present invention, is formed of a plastic blow-molded product, and is disposed in the central horizontal part of the waist pad frame 17. Further, the front surface 14A is a curved surface curved backward. This is to correspond to the circumference of the waist of the user who seated the front surface 14A of the waist pad portion 14, and the waist of the seated user makes surface contact with the curved surface (see FIG. 10a).
The waist pad 14 is preferably a pad type made of a cushion material made of foamed EVA. Thus, when a cushion material is used for the waist pad 14, the pain at the time of sitting can be suppressed.

腰当て部14についてさらに詳述すると、該腰当て部14は、背中を避けて腰部を支持するものであり、前記座面13Bから前記腰当て部14の上端までの鉛直高さである腰当て部高さH(図1等参照)は、100mm≦H≦200mmの範囲内に設定され、好ましくは100mm≦H≦120mmの範囲内に設定される。また、該腰当て部14の横幅W(図3参照)は、250≦W≦300mmの範囲内に設定される。また、該腰当て部14の前面14Aにおいて、前端から最深部までの湾曲深さX(図3参照)は、10mm≦X≦30mmの範囲内に設定されている。さらには、該腰当て部14の前端と、該座部13の前端との水平距離L(図5参照)は、320mmとされている。   The waist rest 14 will be described in further detail. The waist rest 14 supports the waist by avoiding the back, and the waist rest has a vertical height from the seat surface 13B to the upper end of the waist rest 14. The part height H (see FIG. 1 and the like) is set within a range of 100 mm ≦ H ≦ 200 mm, and preferably set within a range of 100 mm ≦ H ≦ 120 mm. Further, the lateral width W (see FIG. 3) of the waist pad 14 is set in a range of 250 ≦ W ≦ 300 mm. Further, on the front surface 14A of the waist pad portion 14, the bending depth X (see FIG. 3) from the front end to the deepest portion is set in a range of 10 mm ≦ X ≦ 30 mm. Furthermore, the horizontal distance L (see FIG. 5) between the front end of the waist pad 14 and the front end of the seat 13 is 320 mm.

本発明の椅子10は、腰当て部高さHが上述の範囲内で設定されるため、図10(a)に示すように、円背症状のある者(身長135cmを想定)が使用した場合にあっても、円背の突起部が接触する部位がない。これに対し、図10(b)に示すように、従来構成の椅子100は、背もたれ部aに円背の突起部が当たってしまい、痛みを伴う。
さらに、本発明の折り畳み椅子10は、使用者のいわゆる座骨結節が、座面のほぼ中央に位置することとなるため、着座姿勢が適正化されて、前記症状の者でも座りやすい。一方、従来構成の椅子100は、図11に示すように、使用者が痛みを避けようと無理な後傾姿勢で座ることにもなるため、使用者が座部の前方から滑り落ちてしまうおそれがある。
In the chair 10 of the present invention, the waist rest height H is set within the above-mentioned range, and therefore, as shown in FIG. 10 (a), when a person with a spinal symptom (assuming a height of 135 cm) is used. Even if there exists, there is no site | part which the projection part of a round back contacts. On the other hand, as shown in FIG. 10 (b), the chair 100 having the conventional structure is painful because the back projection part hits the backrest part a.
Furthermore, the folding chair 10 of the present invention has a so-called ischial nodule located at the center of the seating surface, so that the seating posture is optimized and it is easy for a person with the above symptoms to sit down. On the other hand, as shown in FIG. 11, the chair 100 having the conventional configuration also sits in an excessively tilted posture so that the user can avoid pain, and the user may slide down from the front of the seat. There is.

なお、該腰当て部14において、横幅Wが、250mm未満であると、腰部を充分に受けることができず、着座した使用者が不安を感じる。一方、横幅Wが、300mmを超えると、腰部を受ける腰当てとして不必要な長さで無意味であり、コスト高にもつながる。また、湾曲深さXが、10mm未満であると、腰部が充分に面接触せず、使用者が左右に倒れてしまうおそれがある。一方、該湾曲深さXが、30mmを超えると、着座時に窮屈となって使用者における上半身の動きの自由度が制限される。   If the width W of the waist pad 14 is less than 250 mm, the waist cannot be sufficiently received, and the seated user feels uneasy. On the other hand, when the width W exceeds 300 mm, the length is unnecessary as a waist pad for receiving the waist portion, which is meaningless and leads to high costs. Further, if the bending depth X is less than 10 mm, the waist part does not sufficiently come into surface contact, and the user may fall to the left or right. On the other hand, if the bending depth X exceeds 30 mm, it becomes cramped when seated and the degree of freedom of movement of the upper body of the user is limited.

なお、該腰当て部14は、腰当て枠17上縁に対して固定されているが、上記腰当て部高さHの範囲内で回動自在に取り付けてもよい。腰当て部14を腰当て枠17上縁に対して回動自在に取り付けた場合、使用者の体格などに合わせて該腰当て部14の角度を調整できるという効果を奏する。   The waist pad 14 is fixed to the upper edge of the waist pad frame 17, but it may be attached so as to be rotatable within the range of the waist pad height H. When the waist pad 14 is pivotably attached to the upper edge of the waist pad frame 17, the angle of the waist pad 14 can be adjusted according to the physique of the user.

本発明の折り畳み椅子は、上記実施形態に限定されるものではなく、例えばロックバーは、背もたれ枠の下端の間、又は左右の座支持枠部の後端の間に設けてもよい。   The folding chair of the present invention is not limited to the above embodiment. For example, the lock bar may be provided between the lower ends of the backrest frames or between the rear ends of the left and right seat support frame portions.

本発明は、高齢者等が使用する折り畳み椅子であって介護の際に利用されるものであるため、産業上利用可能である。   INDUSTRIAL APPLICABILITY The present invention is a folding chair used by elderly people and the like, and is used for care. Therefore, the present invention can be used industrially.

実施形態の折り畳み椅子を示す正面図。The front view which shows the folding chair of embodiment. 実施形態の折り畳み椅子を示す背面図。The rear view which shows the folding chair of embodiment. 実施形態の折り畳み椅子を示す平面図。The top view which shows the folding chair of embodiment. 実施形態の折り畳み椅子を示す底面図。The bottom view which shows the folding chair of embodiment. 実施形態の折り畳み椅子を示す側面図。The side view which shows the folding chair of embodiment. 実施形態の折り畳み椅子を示す側断面図。The sectional side view which shows the folding chair of embodiment. (a)〜(c)は、折り畳み椅子の折り畳み時の操作を示す断面図。(A)-(c) is sectional drawing which shows operation at the time of folding of a folding chair. 折り畳まれた状態の折り畳み椅子を示す正面図。The front view which shows the folding chair of the state folded. 折り畳まれた状態の折り畳み椅子を示す側面図。The side view which shows the folding chair of the state folded. 使用状態を示す説明図であり、(a)は本発明の折り畳み椅子を示し、(b)は従来の折り畳み椅子を示している。It is explanatory drawing which shows a use condition, (a) shows the folding chair of this invention, (b) has shown the conventional folding chair. 従来の折り畳み椅子を示す説明図である。It is explanatory drawing which shows the conventional folding chair.

符号の説明Explanation of symbols

10 折り畳み椅子
11 前脚部
12 後脚部
13 座部
13B 座面
14 腰当て部
14A 腰当て部の前面
H 腰当て部高さ
W 横幅
X 湾曲深さ
DESCRIPTION OF SYMBOLS 10 Folding chair 11 Front leg part 12 Rear leg part 13 Seat part 13B Seat surface 14 Waist pad part 14A Front face of waist pad part H Waist pad part height W Width X Curved depth

Claims (5)

前脚部と、
後脚部と、
該前脚部及び該後脚部によって下方から支持された状態で上面が座面となる座部と
を備えた折り畳み椅子であって、
前記座部の後脚部側には、該座部に着座した使用者の腰が当接する腰当て部が、該座面に対して上方に設けられていると共に、
前記座面から前記腰当て部の上端までの鉛直高さである腰当て部高さHが、100mm≦H≦200mmとされていることを特徴とする折り畳み椅子。
The front leg,
The rear legs,
A folding chair provided with a seat portion whose upper surface is a seat surface in a state supported by the front leg portion and the rear leg portion from below;
On the rear leg portion side of the seat portion, a waist rest portion on which the waist of the user seated on the seat portion abuts is provided above the seat surface, and
A folding chair, wherein a waist rest height H, which is a vertical height from the seat surface to the upper end of the waist rest, is 100 mm ≦ H ≦ 200 mm.
前記腰当て部の前面は、後方側へ湾曲した湾曲面とされており、該湾曲面に、前記座部に着座した使用者の腰が面接触する請求項1記載の折り畳み椅子。   The folding chair according to claim 1, wherein a front surface of the waist rest portion is a curved surface curved rearward, and a waist of a user seated on the seat portion is in surface contact with the curved surface. 前記腰当て部は、
横幅Wが、250mm≦W≦300mmとされ、
湾曲深さXが、10mm≦X≦30mmとされている請求項2記載の折り畳み椅子。
The waist rest part is
The lateral width W is 250 mm ≦ W ≦ 300 mm,
The folding chair according to claim 2, wherein the bending depth X is 10 mm ≦ X ≦ 30 mm.
前記腰当て部は、クッション材からなる請求項1乃至請求項3のいずれか1項に記載の折り畳み椅子。   The folding chair according to any one of claims 1 to 3, wherein the waist rest portion is made of a cushion material. 該座部の後脚部側を後方として、該座部の後縁を掴んで持ち上げ、該座部の上面が前側となるように該座部を回動させ、さらに該前脚部と該後脚部とを互いに接近させて折り畳み、折り畳んだ状態で自立する請求項1乃至請求項4のいずれか1項に記載の折り畳み椅子。

The rear leg side of the seat part is the rear, the rear edge of the seat part is grasped and lifted, the seat part is rotated so that the upper surface of the seat part is the front side, and the front leg part and the rear leg part The folding chair according to any one of claims 1 to 4, wherein the folding chair is folded in a state of being close to each other and is self-supported in a folded state.

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WO2013145557A1 (en) * 2012-03-30 2013-10-03 パナソニックエイジフリーライフテック株式会社 Seat

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CN105686435A (en) * 2016-04-05 2016-06-22 哈尔滨共阳科技咨询有限公司 Seat for preventing myopia

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JP2002017501A (en) * 2001-04-16 2002-01-22 Tomohiro Takizawa Foldable chair
JP2004008657A (en) * 2002-06-11 2004-01-15 Fuji Home Kk Chair for bathing
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JP2000125974A (en) * 1998-10-21 2000-05-09 Yoshihiro Kanie Auxiliary chair
JP2001029171A (en) * 1999-07-15 2001-02-06 Shigaken Sangyo Shien Plaza Chair
JP2002017501A (en) * 2001-04-16 2002-01-22 Tomohiro Takizawa Foldable chair
JP2004008657A (en) * 2002-06-11 2004-01-15 Fuji Home Kk Chair for bathing
JP2006025945A (en) * 2004-07-13 2006-02-02 Toto Ltd Bathing assisting device
JP2006055525A (en) * 2004-08-23 2006-03-02 Kimiharu Sano Backrest for chair
JP2007037608A (en) * 2005-08-01 2007-02-15 Matsushita Denko Age Free Lifetec Kk Foldable chair for bathroom

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013145557A1 (en) * 2012-03-30 2013-10-03 パナソニックエイジフリーライフテック株式会社 Seat

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