【０００１】
本発明の入浴用椅子は、健康にいい半身浴用に使用し好適な入浴用椅子に関する。
【０００２】
【従来の技術】
浴室の洗い場で使用される椅子類は、木製や樹脂製で多種多様のものが実用されている。一日の疲れを癒し、心身をリフレッシュさせる目的でゆっくりと胸下まで湯に漬かり、ＣＤを聞いたり、顔のマッサージを行う等の半身浴が奨励されており、低温で、長時間入浴するためには入浴中に心臓に負担をかけないように、入浴する者の体格に合った椅子を浴槽内に沈潜させて腰掛けることが必要となる。
【０００３】
入浴する者の体格に合わせて座面の高さを調整しうる入浴用椅子の一例として特公平０７−２８９４６４号公報（以下、従来技術１という）が提案されている。この従来技術１に開示される入浴用椅子は、座面の高さを変更できる構造の浴室用椅子であって、樹脂製の脚部及び座部を備え、この座部と脚部の凹凸部を嵌め合わせて使用する構造とするとともに、その嵌め合わせ部分の凸部の端面が、凹部の規制面に当たることにより椅子の高さを規定し、かつ、その規制面に当たる面の高さが、座部の脚部に対する回転方向の位置の変更によりその高さを調節する構造としている。
【０００４】
さらに、特公平１１−２４４１７７号公報（以下、従来技術２という。）が提案されてなり、高齢者が浴槽内に腰を沈めたときの不安定感をなくするために、浴槽の底部に固定して使用でき、安心してお湯につかることができるようにしたものである。
【０００５】
しかしながら、前述する従来技術１にあっては、浴室内の椅子座面の高さの変更をなしうるものの、浴槽に沈潜させるのに椅子の上部構造が空洞部を有することから浮力が作用し、これに杭して沈潜させることが難しく、また、脚部と座部の衝合部に多数の段差の異なる凹凸部を形成させるために、製造コストがかかるという問題を生じる。
【０００６】
また、従来技術２にあっては、浴槽の壁に取り付け部材によって固着する形式であって、体格に合わせた半身浴を行うためには座面の高さの調整が不可能であり、不要時（不使用時）における収納に場所を必要とする。
【０００７】
上述するように、半身浴を行うために浴室で使用する椅子を浴槽内において使用するか、それぞれ目的に合致した椅子を用意するかのいずれかであるが、前者の場合にあっては、身体の洗浄に使用すること、また、常時浴室の床面に接して用いることから、これを浴槽用椅子として使用する場合にあっては、浴湯が汚損することになり、衛生面から好ましくなく、また、浴槽用と浴室用とを別個の物とするには、浴室は知られるように、狭小であり整頓の収納場所も制限を強いられ、かてて加えて椅子自体の汚れに対しても簡単に清掃しえないという問題を有するところである。
【０００８】
【発明が解決しようとする課題】
本発明は前述の諸点に鑑みなされたもので、半身浴を行うに際して浴槽内に沈潜させる椅子として、使用者の体格に応じて座面の高さを自由に調整することを可能にし、かつ不使用時においてその体積を縮小せしめて収納場所をとらない新規な構造を有する入浴用椅子を提供することを目的とするものである。
【０００９】
【課題を解決するための手段】
前述の課題を解決する本発明に係る入浴用椅子の構成は、内外係の異なる複数の円筒短管を相互に伸縮可能に嵌装し、下部円筒短管の上に中部円筒短管を、更に上部円筒短管それぞれの該短管は下端縁や上端縁には、環状溝と該環状溝に嵌合する突部を形成するとともに、最上段に位置する上部円筒短管上面には座面を形成せしめ前記環状溝と突部との嵌合脱着により、椅子の高さを変える事と、椅子の体積を縮小する事と、清潔目的の分解可の構造を可能にした点に存する。
【００１０】
また、請求項２記載の発明にあっては、浴槽内で使用される入浴用椅子であって、内外係の異なる複数の円筒短管を相互に嵌装してなり、前記円筒短管には雄ネジおよび／または雌ネジが刻設され、円筒短管相互が螺合され、前記円筒短管の最上端に位置する円筒短管上面には座面を形成せしたことを特徴とする入浴用椅子。
【００１１】
【実施例】
本発明の実施例を図示の実施例に基づいて入浴用椅子について説明するに、図１ないし図７は本発明に係る入浴用椅子の実施例を示し、内外係の異なる複数の円筒短管を相互に伸縮可能に嵌挿したものであって、すなわち、下部円筒短管１に中部円筒短管２が、さらに、中部円筒短管２に上部円筒短管３が相互に回動及び伸縮可能に嵌挿されている。
【００１２】
図に示すように、下部円筒短管１（以下、単に短管１いいう。）は、上下に貫通する筒状のものであって、その上端縁に環状溝５ｂが形成されてなり、即ち、環状溝５ｂの上側側壁５ａは内方に突出する環状溝上縁として形成され、この環状溝上縁５ａに対抗する下側側壁５は図３のＫ部（図１におけるＫーＫ矢視部分断面）で示すように、円周方向に所定ピッチでもって内向突部５として形成され、換言すれば、円周方向に所定幅の内向突部５と所定幅の切欠外向凹部７とで構成され、さらに、短管１の下縁内方に突出する断面Ｌ字型となる内向突部４が円周方向に所定ピッチで形成され、即ち、前述する環状溝５ｂの下側壁５と同様に円周方向に所定幅の内向突部４と所定幅の切欠外向凹部４ａとで構成される。
【００１３】
中部円筒短管２（以下、単に短管２という。）は、短管１と同様に上下に貫通する筒状のものであって、図１ないし図５に示すようにその上端縁に環状溝８ｂが形成されてなり、即ち、環状溝８ｂの上側側壁８ａは内方に突出する環状溝上縁として形成され、この環状溝上縁８ａに対抗する下側側壁８は、円周方向に所定ピッチでもって内向突部８として形成され、換言すれば、円周方向に所定幅の内向突部８と所定幅の切欠外向凹部８ｃとで構成される、また、短管２の下端縁には内方に突出する断面Ｌ字型となる内向突出６が円周方向に所定ピッチで形成される。
【００１４】
即ち、円周方向に所定幅で内向突部６と所定幅の切欠外向凹部６ａとで構成され、さらに、図３Ｊ部（図１におけるＪ−Ｊ矢視部分断面）で示すように、この下端縁には、前記内向突部６に対して半ピッチ変位させて外方に突出する外向突部６ｂが形成され、この外向突部６ｂは短管２を短管１に嵌挿する場合に、外向突部６ｂの通過を容易になすために、短管１の切欠外向凹部７は、外向突部６ｂの幅よりも大きくなるように構成され、また、外向突部６ｂは短管１における内向突部４の上面に衝合する。
【００１５】
上部円筒短管３（以下、単に短管３という。）は、短管２の環状溝８に嵌挿する外径を有し、上端を入浴時の座面１２と水抜き穴１３を形成してなるもので、短管３の下端縁には短管２の下端縁と同様に外方に突出する所定幅の突部９と切欠内向凹部９ｃを有するもので、この外向突部９は短管３を短管２に嵌挿する場合に、短管２に設けられた切欠外向８ｃの幅よりも小さくなるように構成され、また、外向突部９は短管２における内向突部６の上面に衝合する。
【００１６】
さらに加えて、短管１および、短管２における環状溝５ｂおよび８ｂにおけるそれぞれの下側側壁５および８の一側にストッパ１０、ストッパ１１を固定してなり、このストッパ１０、ストッパ１１は環状溝５ｂおよび８ｂの一つに設ければ、短管１、短管２、および、短管３の相対的な回動を阻止しうるものであるが、図示の実施例に示すように、全ての下側側壁５および８の一側に、かつ、短管の高さ方向全体に設けることにより補強部材としての機能を発揮するとともに短管２、３の伸縮作用時におけるガイド機能をも期待できる。
【００１７】
前述において入浴用椅子を構成するそれぞれの短管１、２、３の構成について説明したが、これを用いて椅子とする組立てについて説明するに、短管１に短管２を、短管２に短管３を挿入し、即ち、短管１の下端縁に形成した切欠外向凹部４ａを短管２の下端縁に形成した外向突部６ｂを通過させ、また、短管２の下端縁の内側に形成した外向切欠凹部６ａを短管３の下端縁に形成した外向突部９を通過させ、この状態で短管２、３を左右いずれかの方向へ回動させると、前記短管２、３における下端縁の内側に形成した外向突部６ｂおよび外向突部９が、短管１及び短管２に形成してあるストッパ１０、１１に当接し、回動が阻止され、図２に示されるように、短管１、２、３が縮小かつ重合した状態に組立てられ、また、入浴用椅子をそれぞれの短管に分解する場合には、前述と逆の操作をなすことにより簡単に分解される。
【００１８】
前述の構成を有する入浴用椅子の使用に際しては、図１に示す状態で用いるので、図２に示す縮小の状態から伸長状態に転換する場合について説明するに、短管１を適当に押さえて、短管３の座面水抜き１３を利用し、短管１を固定しつつ短管３を上方に引っ張ると、短管３の下端に形成した外向突部９が短管２の上端に形成された切欠外向凹部８ｃを通過しその環状溝上縁８ａに嵌挿することとなり、また同様に、短管２の下端外向突部６ｂが短管１の上端に形成された切欠外向凹部７を通過し環状溝上縁５ａに嵌挿することとなり、この状態で短管２および短管３を図１中左方に回動させると、短管２、３のそれぞれの下端に形成された外向突部９、６ｂが短管１および２に形成されたストッパ１０、１１に当たり回動は阻止されることとなり、伸長状態となる。
【００１９】
また、２段の状態に伸長させる場合には、短管２を押さえつつ短管３を伸長させるか、短管１を押さえつつ短管２、３を一体として伸長させることにより簡単に２段の椅子として使用状態とすることができる、また、椅子の縮小操作、ならびに、椅子の清掃のために短管１、２、３を個々に分解する場合いには、前述の伸長操作と逆の操作を行うことによって容易に分解することができる。
【００２０】
この状態で入浴用椅子として使用する場合、使用者の体重は短管３の下端縁に形成した外向突部９を介して短管２の上端内向突部８に伝達され、さらに、短管２に対する荷重は、短管２の下端縁に形成した外向突部６ｂを介して短管１の上端内向突部５に伝達され、短管１の下端縁に設けられた突出縁の内向突部４により支持されることになる。
【００２１】
前述の実施例においては、入浴用椅子として短管を３段に伸縮自在となしたものであるが、２段以上の複数段を採用しうるものであり、また、各短管相互の係止構造についても、短管の中間部分に任意の段数でもって形成することによって椅子の高さ調整が段階的に微調整を可能にする。
【００２２】
次ぎに、本発明にかかる入浴用椅子について第２の実施例を図８、図９に基づいて説明するに、内外係の異なる複数の円筒短管を相互に伸縮可能に嵌挿したものであって、すなわち、下部円筒短管１に中部円筒短管２が、さらに、中部円筒短管２に上部円筒短管３が相互に回動及び伸縮可能に嵌挿する構成は前述の実施例と共通するものであり、短管１および短管２の内側全面に、雌ネジ１４，１５を刻接し、また、短管２および短管３の外周の下縁には前記雌ネジ１４，１５に螺合する雄ネジ部１６，１７を設けたものであり、該雄ネジ部１６，１７は、図示の如く椅子として作用する荷重（使用者の体重）を支持し得る程度の長さを有すればよく、また、前記ネジは適宜のネジ条数（多条ネジ）を採用することによって椅子の高さ調整を迅速に、かつ、簡便になしうるものであって、図示の例では４条（４口）ネジが形成されている。
【００２３】
椅子の高さの調整に際しては、任意の短管１，２，３の何れかを回転させることによってなし得るもので、これにより雄ネジ部１６，１７が螺合する雌ネジ１４，１５内を滑動し、これにより短管相互の相対的な伸縮が行われ、椅子高さの無段階の調整が行える。
【００２４】
なお、図示の例にあっては雄ネジとして部分的な突条のものとして構成したが、短管２，３の外周前面にネジを成形することも可能である。
【００２５】
【発明の効果】
本発明の入浴用椅子にあっては、円筒短管の先端を環状溝に形成し、該環状溝に嵌合する突部を形成する事によって、滑らかな回動に加えて短管上下の伸縮をなし得る結果、使用者の体格に合わせた高さの変更を容易にし、また、体積の縮小を可能とし、室内における収納場所も最小限にとどめることができる。
【００２６】
そして本発明による入浴用椅子は、ゆっくりと胸下半身浴を楽しむ過程の中で、浴槽の水位を変えずに簡単な椅子の操作により高さの変更を改めることの効果や、浴室の整頓には体積縮小可の椅子は、飾り窓枠の中に、水道蛇口金具の上に、或いは、洗剤棚にも置く事ができる便利の良い、使い勝手の良い椅子を提供できる。
【００２７】
また、乳幼児の入浴補助には知られているように、中腰に近い不安定な姿勢に絶えなければならない、下部円筒短管に縮小した１段の高さ、転換した２段の高さ、或いは、伸長した３段の高さの、三種類の適切な高さを、簡単に選ぶことが可能で、自由な姿勢で入浴の補助が行える効果を有するものである。
【図面の簡単な説明】
【図１】本発明に係る入浴用椅子の組立て部分正面図。
【図２】嵌合状態を示す断面図。
【図３】各円筒短管の嵌合関係を示す部分断平面図。
【図４】短管１、２嵌合の拡大断面図。
【図５】嵌合関係の拡大断面図。
【図６】環状溝嵌合の拡大断面図。
【図７】環状溝嵌合の拡大断面図。
【図８】本発明に係る第２の実施例を示す部分正面図。
【図９】多条ネジ嵌合を示す部分断平面図。
【符号の説明】
１ 下部円筒短管
２ 中部円筒短管
３ 上部円筒短管
４ 内向突部
４ａ 切欠外向凹部
５ 内向突部
５ａ 環状溝上縁
５ｂ 環状溝
６ 内向突部
６ａ 切欠外向凹部
６ｂ 外向突部
６ｃ 切欠内向凹部
７ 切欠外向凹部
８ 内向突部
８ａ 環状溝上縁
８ｂ 環状溝
８ｃ 切欠外向凹部
９ 外向突部
９ｃ 切欠内向凹部
１０、１１ ストッパ
１２ 短管座面
１３ 座面水抜き穴
１４、１５ 雌ネジ
１６、１７ 雄ネジ部
Ａ、ａ 左回りストッパに当たる面
Ｂ、ｂ 右回りストッパに当たる面[0001]
The bathing chair of the present invention relates to a bathing chair suitable for use in a half-body bath which is good for health.
[0002]
[Prior art]
A wide variety of chairs used in washing rooms in bathrooms are made of wood or resin. For the purpose of healing the fatigue of the day and refreshing the mind and body, immerse slowly in hot water to the lower part of the chest, listen to CDs, do a half body bath such as performing a face massage, etc. In order to avoid straining the heart during bathing, it is necessary to sink a chair suitable for the physique of the bather into the bathtub and sit down.
[0003]
Japanese Patent Publication No. 07-289664 (hereinafter referred to as “prior art 1”) has been proposed as an example of a bathing chair that can adjust the height of a seating surface according to the physique of a bather. The bathing chair disclosed in the prior art 1 is a bathroom chair having a structure in which the height of a seating surface can be changed, and includes a resin leg and a seat, and the seat and the uneven portion of the leg. And the end face of the convex portion of the fitting portion defines the height of the chair by contacting the regulating surface of the concave portion, and the height of the surface contacting the regulating surface is equal to the seat height. The height of the part is adjusted by changing the position of the part with respect to the leg in the rotational direction.
[0004]
Furthermore, Japanese Patent Publication No. 11-244177 (hereinafter referred to as prior art 2) has been proposed, and is fixed to the bottom of the bathtub to eliminate the instability when the elderly sinks in the bathtub. It can be used and can be soaked in hot water with confidence.
[0005]
However, in the above-mentioned prior art 1, although the height of the chair seat surface in the bathroom can be changed, buoyancy acts because the upper structure of the chair has a cavity to sink in the bathtub, It is difficult to sunk and sink the slab, and there is a problem in that a large number of uneven portions having different steps are formed in the abutting portion between the leg portion and the seat portion.
[0006]
Further, in the prior art 2, the type is fixed to the wall of the bathtub by a mounting member. In order to perform a half-body bath according to the physique, it is impossible to adjust the height of the seating surface. Requires space for storage when not in use.
[0007]
As described above, either a chair used in the bathroom to perform a half-body bath is used in the bathtub or a chair suitable for each purpose is prepared, but in the case of the former, the body is When used as a bathtub chair, because it is used for washing, and always used in contact with the floor of the bathroom, the bath water will be soiled, which is not preferable from a sanitary point of view. Also, in order to separate the bathtub and the bathroom from each other, as is known, the bathroom is narrow and the storage space is tidy and the storage space is also restricted, and in addition to the dirt on the chair itself It has a problem that it cannot be easily cleaned.
[0008]
[Problems to be solved by the invention]
The present invention has been made in view of the above-described points, and as a chair to be sunk in a bathtub when performing a half-body bath, it is possible to freely adjust the height of a seating surface according to the user's physique, and It is an object of the present invention to provide a bathing chair having a novel structure which does not take up a storage space by reducing its volume when used.
[0009]
[Means for Solving the Problems]
The configuration of the bathing chair according to the present invention that solves the above-mentioned problem, a plurality of cylindrical short tubes having different inner and outer relations are fitted so as to be able to expand and contract with each other, and the middle cylindrical short tube is further placed on the lower cylindrical short tube. The short pipe of each upper cylindrical short pipe has an annular groove and a projection that fits into the annular groove at the lower edge and the upper edge, and a seating surface is formed on the upper surface of the upper cylindrical short pipe located at the uppermost level. The present invention is characterized in that the height of the chair can be changed, the volume of the chair can be reduced, and a structure that can be disassembled for the purpose of cleanliness is made possible by fitting and removing the annular groove and the projection.
[0010]
Further, in the invention according to claim 2, a bathing chair used in a bathtub, wherein a plurality of cylindrical short tubes having different internal / external relations are fitted to each other, and A male screw and / or a female screw are engraved, the cylindrical short tubes are screwed together, and a seating surface is formed on the upper surface of the cylindrical short tube located at the uppermost end of the cylindrical short tube. Chair.
[0011]
【Example】
1 to 7 show an embodiment of a bathing chair according to the present invention, in which a plurality of short cylindrical tubes having different internal and external relations are shown. The lower cylindrical short tube 1 is fitted with the middle cylindrical short tube 2, and the middle cylindrical short tube 2 is further fitted with the upper cylindrical short tube 3 so that they can rotate and expand and contract with each other. It is inserted.
[0012]
As shown in the figure, the lower cylindrical short tube 1 (hereinafter, simply referred to as the short tube 1) is a tubular member that penetrates vertically and has an annular groove 5b formed at an upper end edge thereof. The upper side wall 5a of the annular groove 5b is formed as an upper edge of an annular groove protruding inward, and the lower side wall 5 opposing the upper edge 5a of the annular groove is a portion K shown in FIG. ), Are formed as inward protrusions 5 at a predetermined pitch in the circumferential direction, in other words, are formed by inward protrusions 5 having a predetermined width in the circumferential direction and cutout outward recesses 7 having a predetermined width, Further, inward projections 4 having an L-shaped cross section protruding inward from the lower edge of the short pipe 1 are formed at a predetermined pitch in the circumferential direction, that is, in the same manner as the lower wall 5 of the annular groove 5b described above. It comprises an inward projection 4 having a predetermined width in the direction and a notch outward recess 4a having a predetermined width.
[0013]
The middle cylindrical short tube 2 (hereinafter simply referred to as the short tube 2) is a tubular member that penetrates vertically like the short tube 1, and has an annular groove at an upper end edge thereof as shown in FIGS. 8b, that is, the upper side wall 8a of the annular groove 8b is formed as an upper edge of the annular groove protruding inward, and the lower side wall 8 opposing the upper edge 8a of the annular groove is formed at a predetermined pitch in the circumferential direction. Thus, it is formed as an inward projection 8, in other words, is constituted by an inward projection 8 having a predetermined width in the circumferential direction and a notched outward recess 8 c having a predetermined width. An inward projection 6 having an L-shaped cross section is formed at a predetermined pitch in the circumferential direction.
[0014]
That is, as shown in FIG. 3J (a partial cross section taken along the line JJ in FIG. 1), the lower end of the inward projection 6 has a predetermined width in the circumferential direction and a notched outward concave portion 6a having a predetermined width. On the edge, an outward projection 6b is formed, which is displaced by a half pitch with respect to the inward projection 6 and projects outward. The outward projection 6b is used when the short tube 2 is inserted into the short tube 1. In order to facilitate the passage of the outward protrusion 6b, the cutout outward concave portion 7 of the short tube 1 is configured to be larger than the width of the outward protrusion 6b, and the outward protrusion 6b is inwardly facing the short tube 1. It abuts on the upper surface of the protrusion 4.
[0015]
The upper cylindrical short tube 3 (hereinafter, simply referred to as the short tube 3) has an outer diameter that fits into the annular groove 8 of the short tube 2, and has an upper end formed with a seating surface 12 for bathing and a drainage hole 13. The lower end of the short tube 3 has a protrusion 9 having a predetermined width and a cut-out inward concave portion 9c protruding outward similarly to the lower end of the short tube 2, and the outward protrusion 9 is short. When the tube 3 is inserted into the short tube 2, the width of the notch outward 8 c provided in the short tube 2 is configured to be smaller than the width of the notch outward 8 c. Abut on top.
[0016]
In addition, a stopper 10 and a stopper 11 are fixed to one side of the lower side walls 5 and 8 in the annular grooves 5b and 8b of the short pipe 1 and the short pipe 2, respectively. If provided in one of the grooves 5b and 8b, it is possible to prevent the relative rotation of the short pipe 1, the short pipe 2 and the short pipe 3, but as shown in the illustrated embodiment, By providing it on one side of the lower side walls 5 and 8 and along the entire height of the short pipe, it can function as a reinforcing member and can also expect a guide function when the short pipes 2 and 3 expand and contract. .
[0017]
In the above description, the configuration of the short tubes 1, 2, and 3 constituting the bathing chair has been described. To describe the assembling using the short tubes, the short tube 2 is used for the short tube 1 and the short tube 2 is used for the short tube 2. The short tube 3 is inserted, that is, the cutout outward concave portion 4a formed at the lower edge of the short tube 1 is passed through the outward protrusion 6b formed at the lower edge of the short tube 2, and the inner side of the lower edge of the short tube 2 is also inserted. When the short pipes 2 and 3 are turned to the right or left in this state, the short cuts 2 and 3 are rotated. The outward projection 6b and the outward projection 9 formed inside the lower end edge of 3 come into contact with the stoppers 10 and 11 formed on the short pipe 1 and the short pipe 2, and are prevented from rotating, as shown in FIG. The short tubes 1, 2, and 3 are assembled in a reduced and overlapped state so that the bath chair can be removed. When broken down into short tubes, respectively, it is easily decomposed by forming the operation described above and opposite.
[0018]
When using the bathing chair having the above-described configuration, since the bathing chair is used in the state shown in FIG. 1, in order to explain the case of changing from the contracted state shown in FIG. When the short pipe 3 is pulled upward while fixing the short pipe 1 by using the seat drain 13 of the short pipe 3, an outward protrusion 9 formed at the lower end of the short pipe 3 is formed at the upper end of the short pipe 2. Through the notched outward concave portion 8c, and fitted into the upper edge 8a of the annular groove. Similarly, the lower end outwardly projecting portion 6b of the short tube 2 passes through the notched outward concave portion 7 formed at the upper end of the short tube 1. When the short pipe 2 and the short pipe 3 are rotated to the left in FIG. 1 in this state, the outward projections 9 formed at the lower ends of the short pipes 2 and 3 are fitted. , 6b hit the stoppers 10, 11 formed on the short tubes 1 and 2, and the rotation is prevented. Now, the extended state.
[0019]
In the case where the short pipe 3 is extended in a two-stage state, the short pipe 3 is extended while holding down the short pipe 2 or the short pipes 2 and 3 are extended integrally while holding down the short pipe 1. It can be used as a chair. In the case where the chairs are contracted and the short tubes 1, 2, and 3 are individually disassembled for cleaning the chairs, the operation is the reverse of the above-described extension operation. Can be easily disassembled.
[0020]
When used as a bathing chair in this state, the weight of the user is transmitted to the upper end inward projection 8 of the short tube 2 via the outward projection 9 formed on the lower edge of the short tube 3, Is transmitted to the upper end inward projection 5 of the short pipe 1 via the outward projection 6b formed on the lower edge of the short pipe 2, and the inward projection 4 of the projection edge provided on the lower edge of the short pipe 1 is transmitted. Will be supported by
[0021]
In the above-described embodiment, the short tube is made three-stage telescopic as a bathing chair. However, two or more stages can be adopted, and the short tubes are mutually locked. As for the structure, the height of the chair can be finely adjusted stepwise by forming the intermediate portion of the short tube with an arbitrary number of steps.
[0022]
Next, a second embodiment of the bathing chair according to the present invention will be described with reference to FIGS. 8 and 9. In FIG. That is, the configuration in which the middle cylindrical short tube 2 is inserted into the lower cylindrical short tube 1 and the upper cylindrical short tube 3 is inserted into the middle cylindrical short tube 2 so as to be able to rotate and expand and contract with each other is common to the above-described embodiment. Internal threads 14 and 15 are engraved on the entire inner surfaces of the short pipe 1 and the short pipe 2, and the female threads 14 and 15 are screwed on the lower edges of the outer circumference of the short pipe 2 and the short pipe 3. Male screw portions 16 and 17 are provided so that the male screw portions 16 and 17 have a length enough to support the load (weight of the user) acting as a chair as shown in the figure. Also, the height of the chair can be adjusted by adopting an appropriate number of screw threads (multi-thread screw). The speed, and, be those capable no convenient, Article 4 (4-necked) screws in the illustrated example is formed.
[0023]
The height of the chair can be adjusted by rotating any of the short tubes 1, 2, 3 so that the internal threads 14, 15 in which the male threads 16, 17 are screwed together. Slides, thereby causing the short tubes to expand and contract relative to each other, allowing stepless adjustment of chair height.
[0024]
In the example shown in the figure, the male screw is configured as a partially projected ridge, but a screw can be formed on the outer front surface of the short tubes 2 and 3.
[0025]
【The invention's effect】
In the bathing chair according to the present invention, the distal end of the cylindrical short tube is formed in an annular groove, and by forming a protruding portion that fits in the annular groove, in addition to the smooth rotation, the short tube can be expanded and contracted up and down. As a result, the height can be easily changed according to the user's physique, the volume can be reduced, and the storage space in the room can be minimized.
[0026]
And the bathing chair according to the present invention has the effect of changing the height change by simple chair operation without changing the water level of the bathtub in the process of slowly enjoying the lower body bath, and the tidying of the bathroom The reduced volume chair can provide a convenient and easy-to-use chair that can be placed in a decorative window frame, on a water tap fitting, or on a detergent shelf.
[0027]
Also, as is known for bathing assistance for infants, it is necessary to stay in an unstable position close to the middle waist, one step height reduced to the lower cylindrical short tube, two steps height converted, or It is possible to easily select three types of appropriate heights, that is, three extended heights, and it is possible to assist bathing in a free posture.
[Brief description of the drawings]
FIG. 1 is an assembled partial front view of a bathing chair according to the present invention.
FIG. 2 is a sectional view showing a fitted state.
FIG. 3 is a partially cutaway plan view showing a fitting relationship between the cylindrical short tubes.
FIG. 4 is an enlarged sectional view of fitting of short pipes 1 and 2;
FIG. 5 is an enlarged sectional view of a fitting relationship.
FIG. 6 is an enlarged sectional view of fitting of an annular groove.
FIG. 7 is an enlarged sectional view of fitting of an annular groove.
FIG. 8 is a partial front view showing a second embodiment according to the present invention.
FIG. 9 is a partially cutaway plan view showing a multi-thread screw fitting.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Lower cylindrical short pipe 2 Middle cylindrical short pipe 3 Upper cylindrical short pipe 4 Inward projection 4a Notch outward recess 5 Inward projection 5a Annular groove upper edge 5b Annular groove 6 Inward projection 6a Notch outward recess 6b Outward projection 6c Notch inward recess 7 Notch outward recess 8 Inward protrusion 8a Annular groove upper edge 8b Annular groove 8c Notch outward recess 9 Outward protrusion 9c Notch inward recess 10, 11 Stopper 12 Short pipe seat surface 13 Seat drain holes 14, 15 Female screw 16, 17 Male screw part A, a Surface B that hits counterclockwise stopper, b Surface that hits counterclockwise stopper
