JP2004097400A

JP2004097400A - Bathing lift for a plurality of bathtubs

Info

Publication number: JP2004097400A
Application number: JP2002261755A
Authority: JP
Inventors: Michinao Hatsutori; 服部　道尚; Minoru Kurihara; 栗原　稔
Original assignee: Og Giken Co Ltd
Current assignee: Og Giken Co Ltd
Priority date: 2002-09-06
Filing date: 2002-09-06
Publication date: 2004-04-02

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bathing lift for a plurality of bathtubs, which enables physically challenging persons and aged care recipients (hereafter called bathing persons) to enter or leave the plurality of bathtubs. <P>SOLUTION: In the bathing lift 5 for the plurality of bathtubs, the bathing lift 5 that lets the bathing persons to enter or leave the plurality of bathtubs by firmly holding a wheelchair 3 or a seat 4 thereof 3 has a control part 6 for controlling the lifting or lowering of a lift part 16 and a lower limit stop part 7 which automatically stops the lowering of the lift part 16 corresponding to the depth of the bottom surface for each of the plurality of bathtubs. The lower limit stop part 7 is made up of a lower limit setter 8 which can properly set a lower limit value related to the lowering position of the lift part 16 corresponding to the depth of the bottom surface of each bathtub, a bathtub selector 26 for selecting the bathtub usable for bathing, a position detector 9 for detecting the lowering positions of the lift part 16, and a position comparator 10 which compares the output values of the position detector 9 with the set value of the lower limit setter 8 for the selected bathtub. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【産業上の利用分野】
本発明は、身体障害者や養護老人（以下、入浴者という）を複数浴槽内に入浴させる複数浴槽用入浴リフトに関する。
【０００２】
【従来の技術】
従来の技術として、特許第３００９８８８号公報に、浴室内で略垂直に立設される支柱と、該支柱に取り付けられる昇降部と、該昇降部を上下方向に移動させる昇降手段と、一端が前記昇降部に接続されるアーム部と、該アーム部の他端に取り付けられる車椅子取付部とによって構成され、前記複数の浴槽は、前記車椅子用リフトのアーム部の回転中心に対して放射状に配置される車椅子用入浴装置が開示されている。
【０００３】
【発明が解決しようとする課題】
しかしながら、前記車椅子用入浴装置は、複数浴槽毎の底面深さに対応して昇降部の下降を停止させるように車椅子または車椅子の上部着座部の下限位置を容易に設定する構成は具備されていないため、複数の浴槽毎の底面深さに差異がある場合、介助者等は入浴時に車椅子または車椅子の上部着座部の下限位置を都度、確認する必要があり、操作が煩雑であるといった問題がある。
【０００４】
本発明の目的は、前記問題を解決したもので、複数浴槽毎の底面深さに対応して車椅子、又は該車椅子の座部の下限位置を容易な操作で設定できる複数浴槽用入浴リフトを提供するものである。
【０００５】
【課題を解決するための手段】
即ち本発明は、車椅子３又は該車椅子３の座部４を把持し、複数浴槽内へ入浴させる入浴リフト５において、前記入浴リフト５は、昇降部１６の昇降を制御する制御部６と、浴槽毎の底面深さに対応して昇降部１６の下降を自動的に停止させる下限停止部７とを有する複数浴槽用入浴リフトである。
又、下限停止部７は、浴槽毎の底面深さに対応して昇降部１６の下降位置に係る下限値を適宜設定できる下限設定器８と、入浴に利用する対象浴槽を選択する浴槽選択器２６と、昇降部１６の下降位置を検出する位置検出器９と、選択された浴槽に対する下限設定器８の下限値と位置検出器９が出力する位置検出値とを比較する位置比較器１０とから構成され、下限値と位置検出値とが同値になると、位置比較器１０から信号が制御部６に伝達され、該制御部６は昇降部１６の下降を自動的に停止する。
或いは、下限停止部７は、昇降部１６に掛かる荷重の閾値を適宜設定できる閾値設定器１８と、入浴に利用する対象浴槽を選択する浴槽選択器２６と、昇降部１６に掛かる荷重を検出する荷重検出器１７と、閾値設定器１８の荷重閾値と荷重検出器１７が出力する荷重検出値とを比較する荷重比較器１９とから構成され、荷重検出値が荷重閾値と同値又は同値以下になると、荷重比較器１９から信号が制御部６に伝達され、該制御部６は昇降部１６の下降を自動的に停止する。
又、下限停止部７は、浴槽底面と昇降部１６との限界距離を適宜設定できる限界設定器２８と、入浴に利用する対象浴槽を選択する浴槽選択器２６と、浴槽底面と昇降部１６との距離を自動検出する距離検出器２７と、限界設定器２８の限界距離値と距離検出器２７が出力する距離検出値とを比較する距離比較器２９とから構成され、距離検出値が限界距離値と同値又は同値以下になると、距離比較器２９から信号が制御部６に伝達され、制御部６は昇降部１６の下降を停止する。
【０００６】
【作用】
複数の浴槽に近接して、入浴リフト５を配置する。介助者は、入浴前予め下限設定器８に甲浴槽１の底面深さを考慮して車椅子３又は該車椅子３の座部４の下限位置に係る下限値を適宜に入力する。入力した該下限値は下限設定器８に記憶され、２回目以降の入浴に際しては、介助者が入浴対象の浴槽に甲浴槽１を選択すれば、浴槽選択器２６が作動し、下限設定器８に記憶された甲浴槽１の下限値を自動的に読み出すから、下限値を入力する必要は無い。
【０００７】
入浴リフト５の昇降部１６に車椅子３又は該車椅子３の座部４を掛止する。介助者は昇降部１６を上昇させ、次に、甲浴槽１の上部に入浴者が配置される様に昇降部１６を手動で水平に回動させる。次に、昇降部１６を下降させ、甲浴槽１内に入浴者を入浴させる。
【０００８】
甲浴槽１内へ昇降部１６が下降する時には、下限停止部７が作動し、車椅子３又は該車椅子３の座部４が甲浴槽１内の好適位置に到達すると制御部６を介して、車椅子３又は該車椅子３の座部４の下降を停止させる。詳細は、位置検出器９が昇降部１６の下降位置を検出し、位置比較器１０は位置検出器９の下降位置の検出値と予め入力した甲浴槽１の下限値とを比較する。
【０００９】
昇降部１６が下限値まで下降し、位置比較器１０は位置検出値と下限値とが同値になった時、指令信号を制御部６に伝達し、制御部６が駆動部２４の作動を制御し、昇降部１６の下降を停止する。
【００１０】
退浴に際して、介助者は入浴操作と逆の手順により、先ず昇降部１６を甲浴槽１内から所定の高さ位置まで上昇させる。次に、昇降部１６を水平に元の位置まで回転させ、続いて昇降部１６を下降させ、車椅子３又は該車椅子３の座部４を元の位置に降ろし、車椅子３又は該車椅子３の座部４を昇降部１６から分離する。
【００１１】
次に、甲浴槽１と底面深さの異なる乙浴槽２内に入浴者を入浴せる場合、介助者は、下限設定器８に乙浴槽２の底面深さに対応した下限値を下限設定器８に適宜に入力する。２回目以降の入浴に際しては、介助者は入浴対象の浴槽に乙浴槽２を選択すれば、浴槽選択器２６が作動し、下限設定器８に記憶された乙浴槽２の下限値を読み出すから、下限値を入力する必要はない。昇降部１６を乙浴槽２の湯面上方位置に向け、甲浴槽１の場合と同様にして入浴リフト５を操作し、入浴者を入退浴させる。
【００１２】
又、下限停止部７の荷重検出器１７は、車椅子３又は該車椅子３の座部４の昇降部１６に掛かる荷重を検出する。介助者は入浴前に、予め閾値設定器１８に荷重閾値を入力し記憶させる。
【００１３】
入浴対象の浴槽を選択し、昇降部１６を下降させる。
荷重比較器１９は荷重検出器１７の検出した荷重検出値と、閾値設定器１８に設定された荷重閾値とを比較する。浴槽底面と、車椅子３又は座部４が接触すると荷重検出値が減少し、最終的に荷重検出値と荷重閾値とが同値又は同値以下になる。荷重検出値が荷重閾値と同値又は同値以下になると、荷重比較器１９から信号を制御部６に伝達し、制御部６が駆動部２４の作動を制御し、昇降部１６の下降を停止する。
【００１４】
或いは、下限停止部７の距離検出器２７は、入浴浴槽に対して、浴槽底面と昇降部１６との距離を自動検出する。限界距離値を予め限界設定器２８に入力し記憶させ、前記検出距離値が限界距離値と同値又は同値以下になると、距離比較器２９から信号を制御部６に伝達し、制御部６が駆動部２４の作動を制御し、昇降部１６の下降を停止する。
【００１５】
【実施例】
図１、２、３に本発明の第１実施例を示す。
図１に示すように、入浴リフト５は、浴室床面２１上の基台部３５に立設された支柱２３と、該支柱２３に沿って上下に昇降する昇降部１６等から構成される。
第１実施例は、図２に示すように一つの前記入浴リフト５を、掘り込み式の甲浴槽１と掘り込み式の乙浴槽２との中間位置の浴室床面２１に配置したものである。
【００１６】
図３は、入浴リフト５の制御部６と下限停止部７と駆動部２４と操作部２５の構成を示したブロック図である。駆動モーター３０等から構成される駆動部２４は、昇降部１６を昇降させるものであり、制御部６は、操作部２５又は下限停止部７の信号を受け、駆動部２４の作動を制御するものである。
【００１７】
前記昇降部１６は、支柱２３に水平に設けられた水平リフトアーム２２と、該水平リフトアーム２２に垂直に、手動で回動可能に設けられた垂直リフトアーム３１等からなり、該垂直リフトアーム３１の先端部には車椅子３の座部４を掛止する取付部２０が設けられる。水平リフトアーム２２の基端部２２ａは、支柱２３内部で昇降ベルト等（図示省略）に固定され、該昇降ベルトが駆動部２４に巻回されることにより昇降可能である。
尚、他の実施例として垂直リフトアーム３１の取付部２０へ車椅子３を掛止し、該車椅子３の全体を浴槽内に浸漬させてもよい。
【００１８】
前記下限停止部７は、甲浴槽１、乙浴槽２毎の底面深さを考慮して昇降部１６の下限停止位置を適宜介助者が設定する下限設定器８と、入浴に利用する複数の浴槽のうち、水平リフトアーム２２の下方位置側にある浴槽を自動的に選択する浴槽選択器２６と、昇降部１６の下降位置を検出する位置検出器９と、下限設定器８に設定された下限値と位置検出器９が検出した位置検出値とを比較する位置比較器１０とから構成される。尚、前記下限設定器８は、介助者が入力した下限値を記憶する。
【００１９】
前記浴槽選択器２６は、具体的には水平リフトアーム２２と支柱２３との間に亘り、支柱２３正面の左右近傍にそれぞれ配設されるリミットスイッチ２６ａからなる。
水平リフトアーム２２が回転し、該水平リフトアーム２２の可動範囲の終端位置近傍に到達すると、前記リミットスイッチ２６ａの一方が押圧される。このリミットスイッチ２６ａの押圧により、入浴に使用する浴槽が自動的に選択され、該浴槽に対して予め下限設定器８に入力され、記憶されている昇降部１６の下降位置に係わる下限値が指定される。即ち、介助者は、水平リフトアーム２２を甲浴槽１又は乙浴槽２側に回転させるだけで、甲浴槽１又は乙浴槽２に対する昇降部１６の下降位置に係わる下限値が読み出され、都度、下限値を入力する必要は無い。
【００２０】
甲浴槽１又は乙浴槽２内へ昇降部１６を下降させ入浴者を入浴させる場合、該昇降部１６は前記下限停止部７の機能により、自動的に下降を停止する。
昇降部１６の浴室床面２１への下降停止及び昇降部１６の昇降時の緊急停止等は、操作部２５の停止スイッチ３２により制御する。
【００２１】
掘り込み式の甲浴槽１への入浴に際して、介助者は、入浴者の着座した車椅子３を浴室床面２１を走行させ、入浴リフト５に接近させ、車椅子３に分離可能に載置された座部４を垂直リフトアーム３１先端の取付部２０に掛止し、昇降部１６を僅かに上昇させ、座部４を台車部３３から分離する。介助者は、昇降部１６が下降した時の下限位置を甲浴槽１の底面深さを考慮し、下限値として下限設定器８に入力する。
【００２２】
この際、昇降部１６が下降した時、座部４が甲浴槽１の底面に軟着陸するか又は底面に接近した好位置で停止するように下限を設定する。尚、下限設定器８には、複数の浴槽毎に下限値が設定でき、該設定値はクリアされるまで下限設定器８に記憶される。２回目以降の甲浴槽１への入浴に際しては、介助者は、水平リフトアーム２２を回動させるだけで、浴槽選択器２６が初期入力された下限値を読み出すので、下限値を入力する作業が省略できる。
【００２３】
続いて、介助者は、操作部２５を操作し、昇降部１６を所定の高さまで上昇させ、次に座部４が甲浴槽１の湯面の上方に配置されるよう水平リフトアーム２２を手動で回動させる。尚、この時、浴槽選択器２６が水平リフトアーム２２の甲浴槽１方向への回動に伴い自動的に甲浴槽１を選択し、座部４の下降の下限値を甲浴槽１に適応させる。
【００２４】
次に、昇降部１６を下降させる。下降時、位置検出器９は、昇降部１６が最上位にある位置を基準とし、該昇降部１６の下降位置を検出する。位置比較器１０は、前記下限値と前記検出位置値とを常時比較し、両値が等しくなると、制御部６に所定の指示信号を伝達し、駆動部２４の作動を制御する制御部６は、昇降部１６を下降停止させる。
【００２５】
入浴者を退浴させる場合は、前述の操作と逆の操作を行なう。
即ち、昇降部１６を上昇させ、続いて水平リフトアーム２２を元位置まで手動回動させ、昇降部１６を下降させ、座部４を台車部３３へ載置し、次に車椅子３を昇降部１６から分離する。尚、図１中、３４は取付部２０に取着した座部４を該取付部２０から脱着させる解除ハンドルである。
【００２６】
次に、乙浴槽２内に他の入浴者を入浴させる場合を述べる。乙浴槽２は、甲浴槽１とは深さの異なる掘り込み式の浴槽である。他の入浴者を車椅子３に着座させ、入力リフト５に近づける。介助者は乙浴槽２の底面深さを考慮し、昇降部１６の下限位置を下限設定器８に入力し、入浴者が着座した座部４を取付部２０に掛止し、前述と同様に入浴リフト５を操作し、入退浴操作を行なう。この入退浴操作は、前述した甲浴槽１における入退浴操作と同様であるので説明を省略する。
【００２７】
前述においては、入浴者毎に好適な浴槽を選択して入浴させたが、複数の入浴者Ａ、Ｂを同時に、甲浴槽１と乙浴槽２の複数の浴槽に入浴させる場合は、車椅子３を複数台準備し、入浴者Ａが着座した座部４を甲浴槽１内へ下降させ、解除ハンドル３４を操作して取付部２０から離脱する。入浴者Ａが着座した座部４を甲浴槽１内に残留した状態で、水平リフトアーム２２を上昇させ、始点位置へ戻し、次の入浴者Ｂが着座した座部４を、入浴リフト５で乙浴槽２内へ下降させる。解除ハンドル３４を操作して取付部２０から座部４を離脱し、水平リフトアーム２２を上昇し、始点位置へ戻す。
退浴の際は、甲浴槽１内へ水平リフトアーム２２を下降させ、入浴者Ａの着座した座部４を取付部２０に掛止し、水平リフトアーム２２を上昇させ、始点位置へ戻し、入浴作業を終了する。以下、介助者は、上記手順を繰り返し入浴作業を行なう。
【００２８】
図４に示す第２実施例は、第１実施例における位置検出器９を荷重検出器１７に、下限設定器８を閾値設定器１８に、位置比較器１０を荷重比較器１９にそれぞれ代えたものである。
【００２９】
荷重検出器１７は、水平リフトアーム２２先端内部に設けられ、取付部２０に固定された入浴者の着座した車椅子３の座部４の荷重を検出する。
閾値設定器１８は、荷重の閾値を設定し、荷重比較器１９は、荷重検出器１７の検出荷重値と閾値設定器１８の荷重閾値とを比較する。
【００３０】
甲浴槽１への入浴に際して、介助者は、閾値設定器１８に荷重閾値を入力する。荷重値は、昇降部１６が下降し、座部４の下面が甲浴槽１の底壁に接触すると減少し、最終的に荷重閾値と同値又は同値以下になる。荷重比較器１９は荷重検出器１７の検出荷重値と閾値設定器１８の荷重閾値とを比較し、検出荷重値が荷重閾値と同値又は同値以下になったことを検知すると、荷重比較器１９から信号が制御部６に伝達され、制御部６が昇降部１６の下降を停止する。
【００３１】
図５に示す第３実施例は、下限停止部７において、第１実施例に係る下限設定器８を限界設定器２８に、位置検出器１０を距離検出器２７に、位置比較器１０を距離比較器２９にそれぞれ代えたものである。
尚、距離検出器２７は、垂直リフトアーム３１の下端に設けられ、浴槽底面と座部４との距離を自動検出するものであり、磁気センサー等で構成される。
【００３２】
介助者は、入浴前予め限界設定器２８に甲浴槽１の底面又は乙浴槽２の底面と座部４との限界距離値をそれぞれ入力する。入浴の際、入浴リフト５の昇降部１６が下降し、甲浴槽１の底面と座部４との距離が、前記限界距離値に到達すると、距離比較器２９から信号が発せられ、制御部６に伝達され、制御部６が駆動部２４を制御し、昇降部１６の下降を停止する。
【００３３】
図６に本発明の第４実施例を示す。第４実施例は、第１実施例の甲浴槽１と乙浴槽２の代替として、キャスター付甲移動浴槽１１とキャスター付乙移動浴槽１２を配置したものである。
【００３４】
図７に本発明の第５実施例を示す。第５実施例は、第１実施例の非移動式の甲浴槽１と非移動式の乙浴槽２の代替として、移動可能な甲載置浴槽１３と移動可能な乙載置浴槽１４を配置したものである。
尚、複数の浴槽と入浴リフト５との配置は第１、４、５実施例に示された態様に限定されるものでなく、例えば、キャスター付甲移動浴槽１１とキャスター付乙移動浴槽１２とを平面視直角状に配置するものであってもよい。
【００３５】
図８に本発明の第６実施例を示す。第６実施例は、第１実施例に係る入浴リフト５の下端を浴槽の外側面部３６に取着した入浴リフト付浴槽１５と乙載置浴槽１４とを平面視直角状に配置したものである。この場合、支柱２３側に取り付けるリミットスイッチ２６ａは、水平リフトアーム２２がそれぞれ入浴リフト付浴槽１５に向かうと作動する位置と乙載置浴槽１４に向かうと作動する位置に設けられる。
【００３６】
図９に本発明の第７実施例を示す。第７実施例の入浴リフト５は、横移動式入浴リフト３７であり、該入浴リフト３７は、浴室床面２１上の基台部３５に支柱２３を立設し、該支柱２３に対して昇降部１６の水平リフトアーム２２が正面視Ｔ字状に、上下に昇降移動可能に設けられて構成される。更に、垂直リフトアーム３１が水平リフトアーム２２の両先端方向間に亘って往復移動可能に吊設されたものである。前記垂直リフトアーム３１は、水平リフトアーム２２内部の駆動部（図示省略）により横方向に往復移動する。
【００３７】
第７実施例の入浴リフト５を利用して、入浴者を掘り込み式の甲浴槽１内に入浴させる場合、介助者は、入浴者が着座した座部４を基台部３５の直前に移動し、座部４を垂直リフトアーム３１の下端部に掛止する。次に、昇降部１６の水平リフトアーム２２を所定の高さまで上昇させた後、座部４が甲浴槽１の湯面上方に配置されるよう垂直リフトアーム３１を、甲浴槽１側に突出した水平リフトアーム２２の先端方向にスライドさせる。水平リフトアーム２２を下降させ、入浴者を甲浴槽１内に浸ける。
【００３８】
昇降部１６の下降を浴槽毎の底面深さに応じて自動的に停止させる下限停止部７の構成と機構、及び昇降部１６の下降停止に係る下限値の入力の操作等については、前述の実施例１と同様であるので記載を省略する。尚、リミットスイッチ２６ａは、水平リフトアーム２２の両先端部にそれぞれ配設される。
【００３９】
入浴者を甲浴槽１内から退浴させる場合は、前述の入浴操作と逆の操作を行なう。即ち、入浴者が着座した座部４を水平リフトアーム２２で上昇させ、垂直リフトアーム３１を支柱２３方向へ移動させる。水平リフトアーム２２を下降させ、座部４を浴室床面２１に待機する台車部３３に載置し、座部４を台車部３３に合体させる。入浴者を適宜元位置に戻し入浴を終わる。
【００４０】
掘り込み式の乙浴槽２に入浴させる場合は、乙浴槽２に対して前述の甲浴槽１と同様の入浴リフト５の操作を行なう。即ち、入浴者が着座した座部４を基台部３５の直前に移動し、垂直リフトアーム３１に掛止し、上昇させ、乙浴槽２の方向へスライドさせ、続いて下降させ、前記入浴者を乙浴槽２内に浸ける。退浴の操作は、甲浴槽１で行なう退浴操作と同様に行なうものであるから省略する。
【００４１】
尚、前述した第１実施例の場合と同様に、複数の入浴者Ａ、Ｂを同時に甲浴槽１、乙浴槽２に入浴させることも可能である。その場合、最初に第１の車椅子３を甲浴槽１と基台部３５との間に移動し、入浴者Ａを甲浴槽１に入浴させる。続いて、座部４を甲浴槽１に置き去りにし、昇降部１６を引き上げる。第２の車椅子３を乙浴槽２と基台部３５との間に移動し、入浴者Ｂを乙浴槽２に入浴させる。
又、昇降部１６の下降停止に係わる下限停止部７の構成は、第１実施例の下限位置検出方式の他に、第２実施例で述べた荷重検出方式や、第３実施例で述べた距離検出方式に代えてもよい。
更に、複数浴槽も、掘り込み式の甲浴槽１と掘り込み式の乙浴槽２に限定されるものでなく、キャスター付甲移動浴槽１１とキャスター付乙移動浴槽１２、又は甲載置浴槽１３と乙載置浴槽１４の組み合わせとしてもよい。
【発明の効果】
【００４２】
本発明の入浴リフト５は、昇降部１６の昇降を制御する制御部６と、複数浴槽毎の底面深さに対応して昇降部１６の下降を停止させる下限停止部７とから構成されるものであるから、一台の入浴リフト５で、底面深さの等しい又は異なる複数の浴槽に対して、該各浴槽内に座部４をそれぞれ好適な下限位置に至らせるように容易に設定でき、当該位置で座部４に着座した入浴者を好適に入浴させることができ、好都合である。
【００４３】
本発明の入浴リフト５に具備される下限停止部７は、入浴前に予め下限設定器８に入力した昇降部１６の下限値と、位置検出器９によって検出された昇降部１６の下降位置検出値とが同値になると、昇降部１６の下降を自動的に停止するものであるから、車椅子３、又は車椅子３の座部４が浴槽の底面に到達する直前で下降を停止するように設定でき、座部４が浴槽の底面に軟着陸し、又は非接触状態で停止し、浴槽底面に急激に到着せず、入浴者へ衝撃及び恐怖感を与えず、好都合である。又、入浴操作毎に、座部４の下降停止位置を介助者が注視、確認する必要がなく、介助者の作業負担を軽減でき、好都合である。
【００４４】
本発明の入浴リフト５に具備される下限停止部７は、昇降部１６に掛かる荷重を検出する荷重検出器１７と、荷重閾値を設定する閾値設定器１８と、荷重検出値と荷重閾値とを比較する荷重比較器１９とから構成されるものであるから、他の実施例に見る下限設定器８に複数浴槽毎の底面深さを考慮して昇降部１６の下限値を入力するといった作業を省略でき、入浴前に介助者が、入浴リフト５に係る空荷状態を考慮して荷重閾値を設定するだけで、昇降部１６の下降を停止でき、初期設定の手数が掛らず、好都合である。
【００４５】
本発明の入浴リフト５に具備される下限停止部７の距離検出器２７は、浴槽底面と昇降部１６の下端との距離（浴槽底面と、車椅子３又は該車椅子３の座部４との距離に準相当する）を自動検出し、該距離値が限界設定器２８に入浴前に予め入力された限界距離値と同値又は同値以下になると、昇降部１６の下降を停止するものであるから、昇降部１６を複数浴槽毎の底面深さに応じて確実に衝撃無く下降停止でき、入浴者への恐怖感を与えず、好都合である。
【図面の簡単な説明】
【図１】本発明の第１実施例を示す斜視図である。
【図２】本発明の第１実施例を示す平面図である。
【図３】本発明の第１実施例を示すブロック図である。
【図４】本発明の第２実施例を示すブロック図である。
【図５】本発明の第３実施例を示すブロック図である。
【図６】本発明の第４実施例を示す側面図である。
【図７】本発明の第５実施例を示す側面図である。
【図８】本発明の第６実施例を示す平面図である。
【図９】本発明の第７実施例を示す正面図である。
【符号の説明】
３　車椅子
４　座部
５　入浴リフト
６　制御部
７　下限停止部
８　下限設定器
９　位置検出器
１０　位置比較器
１６　昇降部
１７　荷重検出器
１８　閾値設定器
１９　荷重比較器
２６　浴槽選択器
２７　距離検出器
２８　限界設定器
２９　距離比較器[0001]
[Industrial applications]
The present invention relates to a bathtub lift for a plurality of bathtubs for bathing a physically handicapped person or an elderly person (hereinafter referred to as a bather) in a plurality of bathtubs.
[0002]
[Prior art]
As a conventional technique, Japanese Patent No. 30098888 discloses a column that is erected substantially vertically in a bathroom, an elevating unit attached to the column, an elevating unit that moves the elevating unit up and down, An arm connected to the elevating unit and a wheelchair attachment unit attached to the other end of the arm unit, wherein the plurality of bathtubs are arranged radially with respect to the center of rotation of the arm of the wheelchair lift. A wheelchair bathing device is disclosed.
[0003]
[Problems to be solved by the invention]
However, the wheelchair bathing device does not include a configuration for easily setting the lower limit position of the wheelchair or the upper seating portion of the wheelchair so as to stop the lowering of the elevating portion corresponding to the bottom depth of each of the plurality of bathtubs. Therefore, when there is a difference in the bottom depth of each of a plurality of bathtubs, the caregiver or the like needs to check the lower limit position of the wheelchair or the upper seating portion of the wheelchair each time when taking a bath, and there is a problem that the operation is complicated. .
[0004]
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem, and to provide a bathtub lift for a plurality of bathtubs in which the lower limit position of a wheelchair or a seat portion of the wheelchair can be set by an easy operation corresponding to the bottom depth of each bathtub. Is what you do.
[0005]
[Means for Solving the Problems]
That is, the present invention relates to a bathing lift 5 for holding a wheelchair 3 or a seat 4 of the wheelchair 3 and bathing in a plurality of bathtubs, wherein the bathing lift 5 includes a control unit 6 for controlling the lifting and lowering of a lifting unit 16, and a bathtub. This is a bathtub lift for a plurality of bathtubs having a lower limit stop portion 7 for automatically stopping the lowering of the lifting / lowering portion 16 corresponding to each bottom depth.
In addition, the lower limit stop unit 7 includes a lower limit setting unit 8 that can appropriately set a lower limit value related to a lowered position of the elevating unit 16 corresponding to the bottom depth of each bathtub, and a bathtub selector that selects a target bathtub to be used for bathing. 26, a position detector 9 for detecting a lowering position of the elevating unit 16, a position comparator 10 for comparing a lower limit value of the lower limit setting unit 8 with respect to a selected bathtub and a position detection value output by the position detector 9. When the lower limit value and the position detection value become the same value, a signal is transmitted from the position comparator 10 to the control unit 6, and the control unit 6 automatically stops the lowering of the elevating unit 16.
Alternatively, the lower limit stop unit 7 detects a load applied to the lifting unit 16, a threshold setting unit 18 that can appropriately set a threshold value of the load applied to the lifting unit 16, a bathtub selector 26 that selects a target bathtub to be used for bathing. A load detector 17 and a load comparator 19 that compares the load threshold value of the threshold value setting unit 18 with the load detection value output by the load detector 17. When the load detection value becomes equal to or less than the load threshold value, Then, a signal is transmitted from the load comparator 19 to the control unit 6, and the control unit 6 automatically stops the lowering of the elevating unit 16.
In addition, the lower limit stop unit 7 includes a limit setting unit 28 that can appropriately set a limit distance between the bathtub bottom surface and the elevating unit 16, a bathtub selector 26 that selects a target bathtub used for bathing, a bathtub bottom surface and the elevating unit 16. , And a distance comparator 29 that compares the limit distance value of the limit setting unit 28 with the distance detection value output by the distance detector 27, and the distance detection value is the limit distance. When the value becomes equal to or less than the value, a signal is transmitted from the distance comparator 29 to the control unit 6, and the control unit 6 stops the lowering of the elevating unit 16.
[0006]
[Action]
The bathing lift 5 is arranged near a plurality of bathtubs. The assistant enters the lower limit value of the lower limit position of the wheelchair 3 or the seat 4 of the wheelchair 3 into the lower limit setting device 8 in advance in consideration of the bottom depth of the instep tub 1 before taking a bath. The input lower limit value is stored in the lower limit setting device 8, and in the second and subsequent bathing, if the assistant selects the bathtub 1 as the bathtub to be bathed, the bathtub selector 26 is activated, and the lower limit setting device 8 is activated. Automatically reads the lower limit value of the instep tub 1 stored in the storage device, there is no need to input the lower limit value.
[0007]
The wheelchair 3 or the seat 4 of the wheelchair 3 is hung on the elevating part 16 of the bathing lift 5. The caregiver raises the elevating unit 16 and then manually rotates the elevating unit 16 horizontally so that the bather is placed on the upper part of the bathtub 1. Next, the elevating unit 16 is lowered, and the bather is bathed in the instep tub 1.
[0008]
When the lifting unit 16 descends into the bathtub 1, the lower limit stop unit 7 operates, and when the wheelchair 3 or the seat 4 of the wheelchair 3 reaches a suitable position in the bathtub 1, the wheelchair is controlled via the control unit 6. 3 or the lowering of the seat 4 of the wheelchair 3 is stopped. More specifically, the position detector 9 detects the lowering position of the elevating unit 16, and the position comparator 10 compares the detected value of the lowering position of the position detector 9 with a previously input lower limit value of the bathtub 1.
[0009]
When the elevating unit 16 descends to the lower limit, the position comparator 10 transmits a command signal to the controller 6 when the detected position value and the lower limit become equal, and the controller 6 controls the operation of the driving unit 24. Then, the lowering of the elevating unit 16 is stopped.
[0010]
When leaving the bath, the assistant first raises the elevating unit 16 from the inside of the bathtub 1 to a predetermined height position in a procedure reverse to the bathing operation. Next, the elevator 16 is rotated horizontally to the original position, and then the elevator 16 is lowered, and the wheelchair 3 or the seat 4 of the wheelchair 3 is lowered to the original position, and the wheelchair 3 or the seat of the wheelchair 3 is lowered. The section 4 is separated from the lifting section 16.
[0011]
Next, when the bather can bathe in the second tub 2 having a different bottom depth from the instep tub 1, the assistant sets the lower limit setter 8 to a lower limit corresponding to the bottom depth of the second tub 2. As appropriate. At the time of bathing for the second and subsequent times, if the assistant selects the second bathtub 2 as the bathtub to be bathed, the bathtub selector 26 is activated, and the lower limit value of the second bathtub 2 stored in the lower limit setting device 8 is read. You do not need to enter a lower limit. The elevating unit 16 is directed to a position above the surface of the bathtub 2, and the bathing lift 5 is operated in the same manner as in the case of the instep tub 1 to bathe the bather.
[0012]
In addition, the load detector 17 of the lower limit stop 7 detects a load applied to the wheelchair 3 or the lifting unit 16 of the seat 4 of the wheelchair 3. Before taking a bath, the assistant inputs and stores the load threshold value in the threshold value setting device 18 in advance.
[0013]
The bathtub to be bathed is selected, and the elevating unit 16 is lowered.
The load comparator 19 compares the load detection value detected by the load detector 17 with the load threshold set by the threshold setting unit 18. When the bottom of the bathtub comes into contact with the wheelchair 3 or the seat portion 4, the detected load value decreases, and finally the detected load value and the load threshold value become equal to or less than the same value. When the detected load value becomes equal to or less than the load threshold value, a signal is transmitted from the load comparator 19 to the control unit 6, and the control unit 6 controls the operation of the driving unit 24 and stops the lowering of the lifting unit 16.
[0014]
Alternatively, the distance detector 27 of the lower limit stop unit 7 automatically detects the distance between the bottom of the bathtub and the elevating unit 16 with respect to the bathtub. The limit distance value is input to the limit setting unit 28 in advance and stored. When the detected distance value becomes equal to or less than the limit distance value, a signal is transmitted from the distance comparator 29 to the control unit 6, and the control unit 6 is driven. The operation of the unit 24 is controlled, and the lowering of the elevating unit 16 is stopped.
[0015]
【Example】
1, 2 and 3 show a first embodiment of the present invention.
As shown in FIG. 1, the bathing lift 5 includes a column 23 erected on a base 35 on the bathroom floor 21, a lifting unit 16 that moves up and down along the column 23, and the like.
In the first embodiment, as shown in FIG. 2, one bathing lift 5 is arranged on a bathroom floor surface 21 at an intermediate position between the digging type bathtub 1 and the digging type bathtub 2. .
[0016]
FIG. 3 is a block diagram showing a configuration of the control unit 6, the lower limit stop unit 7, the drive unit 24, and the operation unit 25 of the bathing lift 5. The drive unit 24 configured by the drive motor 30 and the like raises and lowers the elevating unit 16, and the control unit 6 receives a signal from the operation unit 25 or the lower limit stop unit 7 and controls the operation of the drive unit 24. It is.
[0017]
The elevating unit 16 includes a horizontal lift arm 22 provided horizontally on a column 23, and a vertical lift arm 31 provided manually and rotatably vertically to the horizontal lift arm 22, and the like. An attachment portion 20 for hanging the seat portion 4 of the wheelchair 3 is provided at a tip end portion of the wheelchair 3. The base end portion 22a of the horizontal lift arm 22 is fixed to an elevating belt or the like (not shown) inside the support column 23, and can be moved up and down by winding the elevating belt around the driving unit 24.
As another embodiment, the wheelchair 3 may be hung on the mounting portion 20 of the vertical lift arm 31, and the entire wheelchair 3 may be immersed in the bathtub.
[0018]
The lower limit stop unit 7 includes a lower limit setting device 8 for appropriately setting the lower limit stop position of the lifting unit 16 in consideration of the bottom depth of each of the instep tub 1 and the second tub 2, and a plurality of bathtubs used for bathing. Among them, a bathtub selector 26 for automatically selecting a bathtub on the lower position side of the horizontal lift arm 22, a position detector 9 for detecting a lowered position of the elevating unit 16, and a lower limit set in the lower limit setting unit 8 And a position comparator 10 for comparing the value with a position detection value detected by the position detector 9. The lower limit setting device 8 stores the lower limit input by the assistant.
[0019]
The bathtub selector 26 specifically includes limit switches 26a disposed between the horizontal lift arm 22 and the column 23 and near the left and right of the front of the column 23, respectively.
When the horizontal lift arm 22 rotates and reaches near the end position of the movable range of the horizontal lift arm 22, one of the limit switches 26a is pressed. By pressing the limit switch 26a, a bathtub to be used for bathing is automatically selected, and the bathtub is input to the lower limit setting device 8 in advance, and the stored lower limit value relating to the lowering position of the lifting unit 16 is designated. Is done. That is, the assistant simply rotates the horizontal lift arm 22 toward the upper tub 1 or the second tub 2, and the lower limit value related to the lowering position of the lifting unit 16 with respect to the first tub 1 or the second tub 2 is read out. You do not need to enter a lower limit.
[0020]
When the elevating unit 16 is lowered into the instep tub 1 or the second tub 2 to bathe the bather, the elevating unit 16 automatically stops lowering by the function of the lower limit stop unit 7.
The stop switch 32 of the operation unit 25 controls the elevating unit 16 to descend to the bathroom floor surface 21 and the emergency stop of the elevating unit 16 during elevating.
[0021]
When bathing in the digging type bathtub 1, the assistant moves the wheelchair 3 on which the bather is seated on the bathroom floor surface 21, approaches the bathing lift 5, and is separably mounted on the wheelchair 3. The part 4 is hooked on the mounting part 20 at the tip of the vertical lift arm 31, the elevating part 16 is raised slightly, and the seat part 4 is separated from the bogie part 33. The caregiver inputs the lower limit position when the elevating unit 16 is lowered into the lower limit setting unit 8 as a lower limit value in consideration of the bottom depth of the bathtub 1.
[0022]
At this time, the lower limit is set so that when the elevating unit 16 descends, the seat unit 4 softly lands on the bottom surface of the bathtub 1 or stops at a favorable position close to the bottom surface. Note that the lower limit setting unit 8 can set a lower limit value for each of a plurality of bathtubs, and the set value is stored in the lower limit setting unit 8 until it is cleared. When bathing in the instep tub 1 for the second time or later, the assistant simply turns the horizontal lift arm 22 and the bathtub selector 26 reads the initially input lower limit value. Can be omitted.
[0023]
Subsequently, the caregiver operates the operation unit 25 to raise the elevating unit 16 to a predetermined height, and then manually operates the horizontal lift arm 22 so that the seat 4 is disposed above the surface of the bathtub 1. To rotate. At this time, the bathtub selector 26 automatically selects the upper bathtub 1 as the horizontal lift arm 22 rotates in the direction of the upper bathtub 1, and adapts the lower limit of the lowering of the seat 4 to the upper bathtub 1. .
[0024]
Next, the lifting unit 16 is lowered. When descending, the position detector 9 detects the descending position of the elevating unit 16 with reference to the position where the elevating unit 16 is at the highest position. The position comparator 10 constantly compares the lower limit value and the detected position value, and when both values are equal, transmits a predetermined instruction signal to the control unit 6 and controls the operation of the drive unit 24 by the control unit 6. Then, the elevating unit 16 is lowered and stopped.
[0025]
When the bather is to be taken out of the bath, the reverse operation is performed.
That is, the lifting unit 16 is raised, the horizontal lift arm 22 is manually rotated to its original position, the lifting unit 16 is lowered, the seat 4 is placed on the bogie unit 33, and then the wheelchair 3 is moved up and down. Separated from 16. In FIG. 1, reference numeral 34 denotes a release handle for detaching the seat portion 4 attached to the attachment portion 20 from the attachment portion 20.
[0026]
Next, a case where another bather is bathed in the second bathtub 2 will be described. The second tub 2 is a dug-in tub having a different depth from the upper tub 1. The other bather is seated on the wheelchair 3 and approaches the input lift 5. In consideration of the bottom depth of the bathtub 2, the caregiver inputs the lower limit position of the elevating unit 16 to the lower limit setting device 8, locks the seat 4 on which the bather is seated on the mounting unit 20, and performs the same operation as described above. The bath lift 5 is operated to perform a bathing / leaving operation. This bathing / leaving operation is the same as the bathing / leaving operation in the instep tub 1 described above, and a description thereof will be omitted.
[0027]
In the above description, a suitable bathtub was selected for each bather and bathed. However, when a plurality of bathers A and B are to bathe in a plurality of bathtubs of the upper bathtub 1 and the second bathtub 2 at the same time, the wheelchair 3 should be used. A plurality of units are prepared, and the seat portion 4 on which the bather A is seated is lowered into the instep tub 1, and the release handle 34 is operated to separate from the mounting portion 20. With the seat 4 on which the bather A is seated remaining in the bathtub 1, the horizontal lift arm 22 is raised and returned to the starting position, and the seat 4 on which the next bather B is seated is moved by the bath lift 5. Lower into the second tub 2. By operating the release handle 34, the seat 4 is detached from the mounting section 20, and the horizontal lift arm 22 is raised to return to the starting point position.
At the time of bathing, the horizontal lift arm 22 is lowered into the instep tub 1, the seat 4 on which the bather A is seated is hooked on the mounting portion 20, the horizontal lift arm 22 is raised, and returned to the starting position. End the bathing work. Hereinafter, the assistant repeats the above procedure to perform a bathing operation.
[0028]
In the second embodiment shown in FIG. 4, the position detector 9 in the first embodiment is replaced by a load detector 17, the lower limit setting device 8 is replaced by a threshold value setting device 18, and the position comparator 10 is replaced by a load comparator 19. Things.
[0029]
The load detector 17 is provided inside the distal end of the horizontal lift arm 22, and detects the load on the seat 4 of the wheelchair 3, which is fixed to the mounting unit 20 and seated by a bather.
The threshold setting unit 18 sets a load threshold, and the load comparator 19 compares the detected load value of the load detector 17 with the load threshold of the threshold setting unit 18.
[0030]
When bathing in the instep tub 1, the assistant inputs a load threshold value to the threshold value setting device 18. The load value decreases when the elevating section 16 descends and the lower surface of the seat portion 4 comes into contact with the bottom wall of the bathtub 1, and finally becomes equal to or less than the load threshold value. The load comparator 19 compares the detected load value of the load detector 17 with the load threshold value of the threshold value setting device 18, and when it is detected that the detected load value is equal to or less than the load threshold value, the load comparator 19 The signal is transmitted to the control unit 6, and the control unit 6 stops the lowering of the elevating unit 16.
[0031]
In the third embodiment shown in FIG. 5, in the lower limit stop unit 7, the lower limit setter 8 according to the first embodiment is set to the limit setter 28, the position detector 10 is set to the distance detector 27, and the position comparator 10 is set to the distance. The comparator 29 is replaced with another.
The distance detector 27 is provided at the lower end of the vertical lift arm 31 and automatically detects the distance between the bottom of the bathtub and the seat 4, and is constituted by a magnetic sensor or the like.
[0032]
The assistant inputs the limit distance between the bottom of the instep tub 1 or the bottom of the second tub 2 and the seat 4 in advance to the limit setting device 28 before bathing. When taking a bath, the elevating unit 16 of the bathing lift 5 descends, and when the distance between the bottom surface of the bathtub 1 and the seat 4 reaches the limit distance value, a signal is issued from the distance comparator 29 and the control unit 6 The control unit 6 controls the drive unit 24 to stop the lowering of the elevating unit 16.
[0033]
FIG. 6 shows a fourth embodiment of the present invention. In the fourth embodiment, as a substitute for the upper tub 1 and the second tub 2 of the first embodiment, an upper moving tub 11 on casters and a second moving tub 12 on casters are arranged.
[0034]
FIG. 7 shows a fifth embodiment of the present invention. In the fifth embodiment, as a substitute for the non-movable upper tub 1 and the non-movable second tub 2 of the first embodiment, a movable upper tub 13 and a movable second tub 14 are arranged. Things.
The arrangement of the plurality of bathtubs and the bathing lift 5 is not limited to the mode shown in the first, fourth and fifth embodiments. For example, the instep moving bathtub 11 on casters and the second moving bathtub 12 on casters can be used. May be arranged at right angles in plan view.
[0035]
FIG. 8 shows a sixth embodiment of the present invention. In the sixth embodiment, a bathtub 15 with a bathtub lift and the bathtub 14 with a bathtub mounted thereon, in which the lower end of the bathtub lift 5 according to the first embodiment is attached to the outer surface portion 36 of the bathtub, are arranged at right angles in plan view. . In this case, the limit switch 26a attached to the column 23 is provided at a position where the horizontal lift arms 22 are activated when they move toward the bathtub 15 with a bathing lift, and at a position where they are activated when they move toward the bathtub 14 with the second lift.
[0036]
FIG. 9 shows a seventh embodiment of the present invention. The bathing lift 5 of the seventh embodiment is a laterally moving bathing lift 37, which stands upright on a base 35 on the bathroom floor 21, and moves up and down with respect to the pillar 23. The horizontal lift arm 22 of the part 16 is provided so as to be vertically movable in a T-shape in a front view. Further, the vertical lift arm 31 is suspended so as to be able to reciprocate between both ends of the horizontal lift arm 22. The vertical lift arm 31 is reciprocated in a horizontal direction by a driving unit (not shown) inside the horizontal lift arm 22.
[0037]
When using the bathing lift 5 of the seventh embodiment to bathe the bather in the digging type bathtub 1, the caregiver moves the seat 4 on which the bather is seated to just before the base 35. Then, the seat 4 is hooked on the lower end of the vertical lift arm 31. Next, after raising the horizontal lift arm 22 of the elevating part 16 to a predetermined height, the vertical lift arm 31 is protruded toward the shell tub 1 so that the seat part 4 is arranged above the surface of the shell tub 1. Slide in the direction of the tip of the horizontal lift arm 22. The horizontal lift arm 22 is lowered, and the bather is immersed in the bathtub 1.
[0038]
The configuration and mechanism of the lower limit stop unit 7 that automatically stops the lowering of the elevating unit 16 according to the bottom depth of each bathtub, and the operation of inputting the lower limit value related to the lowering stop of the elevating unit 16 are described above. The description is omitted because it is the same as in the first embodiment. The limit switches 26a are provided at both ends of the horizontal lift arm 22, respectively.
[0039]
In order to take the bather out of the instep tub 1, the reverse of the bathing operation is performed. That is, the seat 4 on which the bather is seated is raised by the horizontal lift arm 22 and the vertical lift arm 31 is moved in the direction of the column 23. The horizontal lift arm 22 is lowered, and the seat 4 is placed on the bogie unit 33 waiting on the bathroom floor 21, and the seat 4 is united with the bogie unit 33. The bather is returned to the original position as appropriate and the bathing is completed.
[0040]
When bathing in the dug-in type bathtub 2, the same operation of the bathing lift 5 as the above-mentioned bathtub 1 is performed on the bathtub 2. That is, the seat 4 on which the bather is seated is moved immediately before the base 35, hooked on the vertical lift arm 31, raised, slid in the direction of the bathtub 2, and then lowered. In the bathtub 2. The operation of leaving the bath is the same as the operation of leaving the bath in the instep tub 1 and therefore will not be described.
[0041]
Incidentally, as in the case of the first embodiment described above, a plurality of bathers A and B can simultaneously bathe in the instep bath 1 and the second bath 2. In this case, first, the first wheelchair 3 is moved between the bathtub 1 and the base 35, and the bather A bathes in the bathtub 1. Subsequently, the seat 4 is left in the instep bath 1, and the elevating unit 16 is pulled up. The second wheelchair 3 is moved between the second bathtub 2 and the base 35, and the bather B takes a bath in the second bathtub 2.
The configuration of the lower limit stop 7 relating to the stopping of the lowering and lowering of the elevating unit 16 is described in the load detection method described in the second embodiment and the load detection method described in the second embodiment, in addition to the lower limit position detection method in the first embodiment. The distance detection method may be used instead.
Further, the plurality of bathtubs are not limited to the dug-in type bathtub 1 and the dug-in type bathtub 2, and the instep moving bathtub 11 with casters and the moving bathtub 12 with casters, or the instep bath 13 It is good also as a combination of the placing tub 14.
【The invention's effect】
[0042]
The bathing lift 5 of the present invention comprises a control unit 6 for controlling the elevation of the elevation unit 16 and a lower limit stop unit 7 for stopping the elevation of the elevation unit 16 corresponding to the bottom depth of each of the plurality of bathtubs. Therefore, with one bathing lift 5, for a plurality of bathtubs having the same or different bottom depths, the seat portions 4 can be easily set in each of the bathtubs so as to reach respective suitable lower limit positions, The bather sitting on the seat 4 at the position can be suitably bathed, which is convenient.
[0043]
The lower limit stop unit 7 provided in the bath lift 5 of the present invention detects the lower limit value of the elevating unit 16 previously input to the lower limit setting unit 8 before bathing and the lowering position of the elevating unit 16 detected by the position detector 9. When the value becomes the same value, the lowering of the elevating unit 16 is automatically stopped, so that the lowering can be set to stop immediately before the wheelchair 3 or the seat 4 of the wheelchair 3 reaches the bottom of the bathtub. The seat 4 softly lands on the bottom surface of the bathtub or stops in a non-contact state, does not suddenly arrive at the bottom surface of the bathtub, and does not give a shock or fear to the bather. In addition, it is not necessary for the assistant to watch and confirm the descent stop position of the seat portion 4 every time the bathing operation is performed, and the work load on the assistant can be reduced, which is convenient.
[0044]
The lower limit stop unit 7 included in the bathing lift 5 of the present invention includes a load detector 17 that detects a load applied to the lifting unit 16, a threshold setting unit 18 that sets a load threshold, and a load detection value and a load threshold. Since it is composed of the load comparator 19 to be compared, the work of inputting the lower limit value of the elevating unit 16 to the lower limit setting unit 8 in the other embodiments in consideration of the bottom depth of each of a plurality of bathtubs is performed. It can be omitted, and the assistant can stop the lowering of the elevating unit 16 only by setting the load threshold in consideration of the empty state of the bathing lift 5 before taking a bath. is there.
[0045]
The distance detector 27 of the lower limit stop 7 provided in the bathing lift 5 of the present invention provides a distance between the bottom of the bathtub and the lower end of the elevating unit 16 (the distance between the bottom of the bathtub and the wheelchair 3 or the seat 4 of the wheelchair 3). Is automatically detected, and when the distance value becomes equal to or less than the limit distance value previously input before bathing in the limit setting device 28, the descent of the lifting unit 16 is stopped. The elevating unit 16 can be reliably stopped without impact according to the bottom depth of each of the plurality of bathtubs without any impact, and it is convenient without giving a sense of fear to a bather.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of the present invention.
FIG. 2 is a plan view showing a first embodiment of the present invention.
FIG. 3 is a block diagram showing a first embodiment of the present invention.
FIG. 4 is a block diagram showing a second embodiment of the present invention.
FIG. 5 is a block diagram showing a third embodiment of the present invention.
FIG. 6 is a side view showing a fourth embodiment of the present invention.
FIG. 7 is a side view showing a fifth embodiment of the present invention.
FIG. 8 is a plan view showing a sixth embodiment of the present invention.
FIG. 9 is a front view showing a seventh embodiment of the present invention.
[Explanation of symbols]
3 Wheelchair 4 Seat 5 Bath lift 6 Control unit 7 Lower limit stop unit 8 Lower limit setting unit 9 Position detector 10 Position comparator 16 Lifting unit 17 Load detector 18 Threshold setting unit 19 Load comparator 26 Bathtub selector 27 Distance detector 28 Limit setter 29 Distance comparator

Claims

In a bath chair (3) or a bathing lift (5) for gripping a seat (4) of the wheel chair (3) and bathing in a plurality of bathtubs,
The bath lift (5) includes a control unit (6) for controlling the elevation of the elevating unit (16), and a lower limit stop for automatically stopping the lowering of the elevating unit (16) according to the bottom depth of each bathtub. A bath lift for a plurality of bathtubs, characterized by having a part (7).

The lower limit stop unit (7) selects a lower limit setting device (8) that can appropriately set a lower limit value related to a lowering position of the elevating unit (16) according to a bottom depth of each bathtub, and a target bathtub to be used for bathing. A bathtub selector (26), a position detector (9) for detecting a lowering position of the elevating unit (16), and a lower limit value and a position detector (9) of the lower limit setting device (8) for the selected bathtub. And a position comparator (10) for comparing the position detection value to be output.
When the lower limit value and the position detection value become equal, a signal is transmitted from the position comparator (10) to the control unit (6), and the control unit (6) automatically stops the lowering of the elevating unit (16). The bath lift for a plurality of bathtubs according to claim 1, wherein:

The lower limit stop unit (7) includes a threshold setting unit (18) that can appropriately set a threshold value of a load applied to the lifting unit (16), a bathtub selector (26) that selects a target bathtub to be used for bathing, and a lifting unit ( 16) a load detector (17) for detecting the load applied to the load, and a load comparator (19) for comparing the load threshold value of the threshold setting device (18) with the load detection value output by the load detector (17). Composed,
When the detected load value becomes equal to or less than the load threshold value, a signal is transmitted from the load comparator (19) to the control unit (6), and the control unit (6) automatically lowers the elevating unit (16). The bath lift for a plurality of bathtubs according to claim 1, wherein the bath lift is stopped.

A lower limit stop (7) includes a limit setter (28) that can appropriately set a limit distance between the bottom of the bathtub and the elevating unit (16), a bathtub selector (26) that selects a target bathtub used for bathing, and a bathtub. A distance detector (27) for automatically detecting the distance between the bottom surface and the elevating unit (16), and a distance for comparing a limit distance value of the limit setting unit (28) with a distance detection value output by the distance detector (27). A comparator (29),
When the detected distance value becomes equal to or less than the limit distance value, a signal is transmitted from the distance comparator (29) to the control unit (6), and the control unit (6) stops the lowering of the lifting unit (16). The bath lift for a plurality of bathtubs according to claim 1, characterized in that: