JP6193640B2

JP6193640B2 - Bathing wheelchair

Info

Publication number: JP6193640B2
Application number: JP2013132730A
Authority: JP
Inventors: 泰知金子
Original assignee: Sakai Medical Co Ltd
Current assignee: Sakai Medical Co Ltd
Priority date: 2012-07-10
Filing date: 2013-06-25
Publication date: 2017-09-06
Anticipated expiration: 2033-06-25
Also published as: JP2014030700A

Description

本発明は、高齢者や身体障害者等の要介助者（体が不自由で介助が必要な者）を入浴させる際に使用する入浴用車椅子に関する。 The present invention relates to a bathing wheelchair for use in bathing a person who needs assistance (a person who is physically disabled and needs assistance) such as an elderly person or a physically handicapped person.

従来、高齢者や身体障害者等の要介助者が車椅子から降りることなく浴槽内に入れるように構成された、椅子付の上部（椅子部）と、車輪付の下部（台車部）とが分離可能な入浴用車椅子が知られている（例えば特許文献１や２参照）。このような入浴用車椅子の中には、椅子部を台車部に対してスライド移動させることによって椅子部と台車部とを分離するタイプのものや、椅子部を台車部に対して持ち上げることによって椅子部と台車部とを分離するタイプのものがある。 Conventionally, the upper part with a chair (chair part) and the lower part with a wheel (trolley part), which are configured so that an elderly person or a physically challenged person can enter the bathtub without getting out of the wheelchair, are separated. Possible bathing wheelchairs are known (see, for example, Patent Documents 1 and 2). Among such bathing wheelchairs, there are types that separate the chair part and the carriage part by sliding the chair part relative to the carriage part, and the chair by lifting the chair part relative to the carriage part. There is a type that separates the part and the carriage part.

特開２００６−１６７３１４号公報JP 2006-167314 A 特開平１０−２７７１１９号公報Japanese Patent Laid-Open No. 10-277119

ところで、本出願人は、例えば小規模多機能型居宅介護施設用や在宅用としての使用に適した入浴装置の開発を行っている。この入浴装置は、中度から重度の要介助者ばかりではなく、軽度の要介助者や健常者にとっても快適に使用されることを念頭において開発されている。 By the way, the present applicant has developed a bathing apparatus suitable for use for small-scale multifunctional home care facilities and home use, for example. This bathing apparatus has been developed with the in mind that it can be used comfortably not only by moderate to severe caregivers but also by mild caregivers and healthy people.

このような入浴装置の開発の中で、椅子部を台車部に対して持ち上げることによって椅子部と台車部とを分離するタイプの入浴用車椅子を使用することが考えられている。そして、このような入浴用車椅子には、椅子部と台車部との分離が簡単であることと、安全性が高いことが求められた。 In the development of such a bathing apparatus, it is considered to use a bathing wheelchair of a type that separates the chair portion and the cart portion by lifting the chair portion with respect to the cart portion. Such a bathing wheelchair is required to be easily separated from the chair portion and the cart portion and to have high safety.

なお、小規模多機能型居宅介護施設とは、「通い（デイサービス）」を中心として、要介助者の様態や希望に応じて、随時「訪問（訪問介護）」や「泊まり（ショートステイ）」を組み合わせたサービスを提供する施設のことである。このような施設は、軽度から重度までの要介助者によって利用されることが想定される。 Small-scale multifunctional home care facilities are centered on “commuting (day service)” and “visiting (visiting care)” or “staying (short stay)” as needed depending on the condition and wishes of the person requiring assistance. It is a facility that provides a combination of services. It is assumed that such facilities are used by people who require mild to severe assistance.

以上の点に鑑みて、本発明の目的は、椅子部と台車部との分離が容易であるとともに安全性が高い入浴用車椅子を提供することである。 In view of the above points, an object of the present invention is to provide a bathing wheelchair that allows easy separation of a chair portion and a cart portion and high safety.

上記目的を達成するために本発明の入浴用車椅子は、椅子部と前記椅子部を載せる台車部とを有し、外部昇降装置に含まれる係合部を前記椅子部に設けられる被係合部に係合させて前記椅子部を持ち上げることによって、前記椅子部と前記台車部とを分離可能な入浴用車椅子であって、前記椅子部と前記台車部とが分離される場合に前記係合部と前記被係合部との係合が外れないようにロックを行うとともに、前記椅子部と前記台車部とが合体される場合に前記ロックを解除するロック機構を備える構成（第１の構成）になっている。 In order to achieve the above object, a bathing wheelchair according to the present invention has a chair part and a carriage part on which the chair part is placed, and an engaged part included in an external lifting device is provided in the chair part. It is a bathing wheelchair which can separate the chair part and the cart part by engaging the chair part and lifting the chair part, and the engagement part when the chair part and the cart part are separated And a lock mechanism for releasing the lock when the chair portion and the carriage portion are combined (first configuration). It has become.

本構成の入浴用車椅子は、外部昇降装置に含まれる係合部を椅子部に設けられる被係合部に係合させて持ち上げることによって、椅子部と台車部との分離を行える構成であり、両者の分離を実現する構造を簡単なものとし易い。また、本構成では、外部昇降装置に含まれる係合部を椅子部に設けられる被係合部に係合させて持ち上げる場合には、ロック機構によって、当該係合部と被係合部とが係合した状態がロックされる。このために、本構成によれば、持ち上げられた椅子部が脱落する可能性が低い（すなわち安全な）入浴用車椅子を提供できる。 The bathing wheelchair of this configuration is configured to separate the chair portion and the cart portion by engaging and lifting the engaging portion included in the external lifting device to the engaged portion provided in the chair portion, It is easy to simplify the structure that realizes the separation of the two. Further, in this configuration, when the engaging part included in the external lifting device is engaged with the engaged part provided in the chair part and lifted, the engaging part and the engaged part are separated by the lock mechanism. The engaged state is locked. For this reason, according to this structure, it is possible to provide a bathing wheelchair with a low possibility that the lifted chair portion will drop off (that is, safe).

上記第１の構成の入浴用車椅子において、前記椅子部に設けられる係合穴と、前記台車部に含まれる係合フレーム部と、を嵌め合わせることによって前記椅子部と前記台車部とが合体され、前記ロック機構は、前記係合フレーム部の前記係合穴に対する嵌脱に連動して、前記ロックと前記ロックの解除とを行う構成（第２の構成）が採用されるのが好ましい。本構成によれば、椅子部と台車部とを分離する構造、及び、ロック機構の構造を簡単な構成とし易い。 In the bathing wheelchair having the first configuration described above, the chair portion and the cart portion are combined by fitting an engagement hole provided in the chair portion and an engagement frame portion included in the cart portion. The lock mechanism preferably employs a configuration (second configuration) in which the lock and the lock are released in conjunction with the engagement / disengagement of the engagement frame portion with respect to the engagement hole. According to this structure, it is easy to make the structure which isolate | separates a chair part and a trolley | bogie part and the structure of a lock mechanism into a simple structure.

上記第２の構成の入浴用車椅子において、前記ロック機構には、付勢部材によって付勢される第１の回動部材と、前記第１の回動部材に接続部材を用いて連結される第２の回動部材と、が含まれ、前記ロック機構は、前記係合穴に前記係合フレーム部が嵌め込まれていない場合に、前記付勢部材の付勢力によって前記第１の回動部材を第１の位置に配置して前記ロックを行い、前記係合穴に前記係合フレーム部が嵌め込まれる場合に、前記係合フレーム部と当接する前記第２の回動部材の回動によって前記第１の回動部材を第２の位置に配置して前記ロックの解除を行う構成（第３の構成）が採用されるのが好ましい。本構成によれば、係合フレーム部の係合穴に対する嵌脱に連動するロック機構を安価に形成できる。 In the bathing wheelchair having the second configuration described above, the lock mechanism includes a first rotating member that is urged by an urging member and a first rotating member that is coupled to the first rotating member using a connecting member. 2, and when the engagement frame portion is not fitted in the engagement hole, the lock mechanism moves the first rotation member by the urging force of the urging member. When the locking is performed by placing the first frame in the first position and the engagement frame portion is fitted in the engagement hole, the second rotation member that contacts the engagement frame portion rotates to rotate the second rotation member. Preferably, a configuration (third configuration) in which one rotating member is disposed at the second position to release the lock is employed. According to this configuration, it is possible to inexpensively form a lock mechanism that interlocks with the engagement / disengagement of the engagement frame portion with respect to the engagement hole.

上記第３の構成の入浴用車椅子において、前記接続部材には、伸縮可能な弾性部材が含まれる構成（第４の構成）が好ましい。本構成によれば、接続部材に伸縮可能な弾性部材が含まれるために、例えば外部昇降装置の係合部と、椅子部に設けられる被係合部との位置関係が非正規の状態のまま、椅子部と台車部とを合体させようとした場合でも、接続部材が切断したり、伸びた状態のままになったりすることを避けられる。 In the bathing wheelchair having the third configuration, it is preferable that the connection member includes a stretchable elastic member (fourth configuration). According to this configuration, since the connecting member includes the elastic member that can be expanded and contracted, for example, the positional relationship between the engaging portion of the external lifting device and the engaged portion provided in the chair portion remains in an irregular state. Even when the chair portion and the cart portion are combined, it is possible to prevent the connecting member from being cut or left in an extended state.

上記第１から第４のいずれかの構成の入浴用車椅子において、前記台車部には、前記合体状態が得られた場合に、前記椅子部が前記台車部に対して横揺れすることを防止する横揺れ防止部が設けられている構成（第５の構成）が採用されるのが好ましい。本構成によれば、要介助者は、安心して、また、安全に入浴用車椅子に乗ることができる。 In the bathing wheelchair having any one of the first to fourth configurations, the chair portion prevents the chair portion from rolling with respect to the cart portion when the combined state is obtained in the cart portion. It is preferable to employ a configuration (fifth configuration) in which a roll prevention unit is provided. According to this configuration, the person requiring assistance can get on the bathing wheelchair safely and safely.

上記第１から第５のいずれかの構成の入浴用車椅子において、前記合体状態が得られた場合に、前記椅子部が前記台車部に対して浮き上ることを防止する浮き上り防止機構が設けられている構成（第６の構成）が採用されるのが好ましい。本構成によれば、要介助者は、安心して、また、安全に入浴用車椅子に乗ることができる。 In the bathing wheelchair having any one of the first to fifth configurations, a lift prevention mechanism is provided for preventing the chair portion from being lifted with respect to the cart portion when the combined state is obtained. The configuration (sixth configuration) is preferably adopted. According to this configuration, the person requiring assistance can get on the bathing wheelchair safely and safely.

上記第６の構成の入浴用車椅子において、前記椅子部には、伸縮可能な足受部が設けられ、前記浮き上り防止機構は、前記足受部の伸縮に連動して、前記浮き上りの防止を行うか否かの切り替えを行う構成（第７の構成）が採用されてもよい。そして、本構成においては、前記台車部に、前記足受部とは別に足を載せる足載せ部が設けられているのが好ましい。 In the bathing wheelchair of the sixth configuration, the chair portion is provided with an extendable foot receiving portion, and the lifting prevention mechanism is configured to prevent the lifting in conjunction with the expansion and contraction of the foot receiving portion. A configuration (seventh configuration) for switching whether or not to perform the above may be employed. And in this structure, it is preferable that the said cart part is provided with the footrest part which mounts a foot separately from the said footrest part.

本発明によれば、椅子部と台車部との分離が容易であるとともに安全性が高い入浴用車椅子を提供可能である。 ADVANTAGE OF THE INVENTION According to this invention, it is possible to provide a bathing wheelchair that allows easy separation of the chair portion and the cart portion and high safety.

本発明の実施形態に係る入浴用車椅子の概略斜視図Schematic perspective view of a wheelchair for bathing according to an embodiment of the present invention 本発明の実施形態に係る入浴用車椅子を前方側から見た場合の概略平面図The schematic plan view at the time of seeing the wheelchair for bathing concerning the embodiment of the present invention from the front side 本発明の実施形態に係る入浴用車椅子を後方側から見た場合の概略平面図Schematic plan view when viewing a wheelchair for bathing according to an embodiment of the present invention from the rear side 図２のＡ−Ａ位置における概略断面図Schematic cross-sectional view at the position AA in FIG. 図４の一点鎖線Ｂで囲まれた部分の拡大図Enlarged view of the portion surrounded by the alternate long and short dash line B in FIG. 図４の一点鎖線Ｃで囲まれた部分の拡大図Enlarged view of the portion surrounded by the alternate long and short dash line C in FIG. 本発明の実施形態に係る入浴用車椅子とセットで使用される入浴装置及び浴槽を上から見た場合の概略平面図Schematic plan view when bathing apparatus and bath tub used as a set with a bathing wheelchair according to an embodiment of the present invention are viewed from above 本発明の実施形態に係る入浴用車椅子とセットで使用される入浴装置及び浴槽を側面から見た場合の概略平面図The schematic plan view at the time of seeing from the side the bathing apparatus and bathtub used with the wheelchair for bathing which concerns on embodiment of this invention, and a set 本発明の実施形態に係る入浴用車椅子を利用して要介助者を入浴させる場合に行われる一連の動作を説明するための図The figure for demonstrating a series of operation | movement performed when bathing a person requiring assistance using the bathing wheelchair which concerns on embodiment of this invention. 本発明の実施形態に係る入浴用車椅子を利用して要介助者を入浴させる場合に行われる一連の動作を説明するための図The figure for demonstrating a series of operation | movement performed when bathing a person requiring assistance using the bathing wheelchair which concerns on embodiment of this invention. 本発明の実施形態に係る入浴用車椅子を利用して要介助者を入浴させる場合に行われる一連の動作を説明するための図The figure for demonstrating a series of operation | movement performed when bathing a person requiring assistance using the bathing wheelchair which concerns on embodiment of this invention. 本発明の実施形態に係る入浴用車椅子が備えるロック機構の作用を説明するための図The figure for demonstrating the effect | action of the lock mechanism with which the wheelchair for bathing concerning embodiment of this invention is provided. 本発明の実施形態に係る入浴用車椅子の変形例を説明するための模式図The schematic diagram for demonstrating the modification of the wheelchair for bathing which concerns on embodiment of this invention

以下、本発明の実施形態に係る入浴用車椅子について、図面を参照しながら詳細に説明する。なお、説明にあたっては、入浴用車椅子に座った入浴者（要介助者）からみて前方となる側を入浴用車椅子の前側とし、当該入浴者からみて後方となる側を入浴用車椅子の後ろ側とし、当該入浴者から見て右方となる側を入浴用車椅子の右側とし、当該入浴者から見て左方となる側を入浴用車椅子の左側とする。
＜入浴用車椅子の概略構成＞ DESCRIPTION OF EMBODIMENTS Hereinafter, a bathing wheelchair according to an embodiment of the present invention will be described in detail with reference to the drawings. In the description, the front side of the bathing wheelchair is the front side of the bathing person sitting in the bathing wheelchair (the person who needs assistance), and the back side of the bathing wheelchair is the rear side of the bathing wheelchair. The right side as viewed from the bather is the right side of the bathing wheelchair, and the left side as viewed from the bather is the left side of the bathing wheelchair.
<Schematic configuration of a wheelchair for bathing>

まず、本発明の実施形態に係る入浴用車椅子の概略構成について、図１〜図４を参照しながら説明する。図１〜図４に示すように、本発明の実施形態に係る入浴用車椅子１は、椅子部（上部）１０と台車部（下部）２０とに分離可能である。 First, a schematic configuration of a bathing wheelchair according to an embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 to 4, the bathing wheelchair 1 according to the embodiment of the present invention is separable into a chair part (upper part) 10 and a cart part (lower part) 20.

なお、図１は、本発明の実施形態に係る入浴用車椅子１の概略斜視図である。図２は、本発明の実施形態に係る入浴用車椅子１を前方側から見た場合の概略平面図である。図３は、本発明の実施形態に係る入浴用車椅子１を後方側から見た場合の概略平面図である。図４は、図２のＡ−Ａ位置における概略断面図である。図１〜４において、（ａ）は入浴用車椅子１の椅子部１０と台車部２０とが合体状態である場合の構成を示しており、（ｂ）は入浴用車椅子１の椅子部１０と台車部２０とが分離状態である場合の構成を示している。 FIG. 1 is a schematic perspective view of a bathing wheelchair 1 according to an embodiment of the present invention. FIG. 2 is a schematic plan view of the bathing wheelchair 1 according to the embodiment of the present invention as viewed from the front side. FIG. 3 is a schematic plan view of the bathing wheelchair 1 according to the embodiment of the present invention as viewed from the rear side. 4 is a schematic cross-sectional view taken along the line AA in FIG. 1-4, (a) has shown the structure in case the chair part 10 and the trolley | bogie part 20 of the bathing wheelchair 1 are united states, (b) has shown the chair part 10 and the trolley | bogie of the bathing wheelchair 1 in FIG. The structure when the part 20 is in a separated state is shown.

椅子部１０は、入浴者が臀部を載せる座面部１１と、入浴者の背もたれとなる背当部１２と、を有する。座面部１１及び背当部１２は、椅子部１０が備える椅子フレーム１３によって支持されている。その他、椅子フレーム１３には、回動可能に設けられる一対の手すり１４ａ、１４ｂと、座面部１１の下側への収納と座面部１１の下側からの水平方向への引き出しとが可能に設けられる足受部１５と、背当部１２の背面（後面）側に位置する一対の走行用ハンドル１６ａ、１６ｂと、が取り付けられている。なお、足受部１５は、本発明の伸縮可能な足受部の一例である。 The chair portion 10 includes a seat surface portion 11 on which a bather places a buttocks and a backrest portion 12 that serves as a backrest of the bather. The seat surface portion 11 and the backrest portion 12 are supported by a chair frame 13 provided in the chair portion 10. In addition, the chair frame 13 is provided with a pair of handrails 14a and 14b which are rotatably provided, and can be stored in the lower side of the seat surface portion 11 and pulled out in the horizontal direction from the lower side of the seat surface portion 11. A foot support 15 and a pair of traveling handles 16a and 16b located on the back (rear) side of the backrest 12 are attached. The foot support 15 is an example of an extendable foot support according to the present invention.

また、椅子部１０には、その上部の右側と左側とに設けられる、一対の係合フック１７ａ、１７ｂが形成されている。一対の係合フック１７ａ、１７ｂは、いずれも、側面視、Ｌ字が略１８０°回転されたような形状に設けられ、椅子フレーム１３に固着されている。 In addition, the chair portion 10 is formed with a pair of engagement hooks 17a and 17b provided on the right and left sides of the upper portion thereof. Each of the pair of engagement hooks 17 a and 17 b is provided in a shape such that the L shape is rotated by approximately 180 ° in a side view, and is fixed to the chair frame 13.

また、椅子部１０を構成する座面部１１の後ろ側には、左右方向に延びる長穴形状の係合穴１８ａが形成された係合部１８が設けられている。なお、係合穴１８ａは、本発明の係合穴の一例である。また、係合穴１８ａが形成される係合部１８は、座面部１１と一体形成されるものでもよいし、別部材として設けられるものであってもよい。 Further, on the rear side of the seat surface portion 11 constituting the chair portion 10, an engagement portion 18 is provided in which an elongated hole-shaped engagement hole 18a extending in the left-right direction is formed. The engagement hole 18a is an example of the engagement hole of the present invention. Moreover, the engaging part 18 in which the engaging hole 18a is formed may be integrally formed with the seat surface part 11, or may be provided as a separate member.

台車部２０は、その下端に４つの車輪２２が取り付けられた台車フレーム２１を備える。台車フレーム２１の前側には、入浴者が足を載せる足載せ部２３が取り付けられている。台車フレーム２１には、椅子部１０に設けられる係合穴１８ａに係合する係合フレーム部２１ａが含まれる。係合フレーム部２１ａは、台車フレーム２１の後ろ側に位置する。 The carriage unit 20 includes a carriage frame 21 having four wheels 22 attached to the lower end thereof. On the front side of the carriage frame 21, a footrest portion 23 on which a bather places his / her foot is attached. The carriage frame 21 includes an engagement frame portion 21 a that engages with an engagement hole 18 a provided in the chair portion 10. The engagement frame portion 21 a is located on the rear side of the carriage frame 21.

椅子部１０と台車部２０とが合体した状態では、係合フレーム部２１ａが係合穴１８ａに嵌合された状態となる。この嵌合状態においては、係合フレーム部２１ａは、その上端部が係合穴１８ａから突出する。椅子部１０と台車部２０とが合体した状態では、座面部１１が、台車フレーム２１の支持フレーム部２１ｂによって支持される。 In the state where the chair portion 10 and the cart portion 20 are combined, the engagement frame portion 21a is fitted into the engagement hole 18a. In this fitted state, the upper end portion of the engagement frame portion 21a protrudes from the engagement hole 18a. In the state where the chair unit 10 and the cart unit 20 are combined, the seat surface unit 11 is supported by the support frame unit 21 b of the cart frame 21.

また、椅子部１０と台車部２０とが合体した状態では、台車フレーム２１に含まれる一対の横揺れ防止フレーム部２１ｃ、２１ｃによって、椅子部１０が台車部２０に対して左右に揺れる（横揺れする）ことが防止される。一対の横揺れ防止フレーム部２１ｃ、２１ｃは、台車フレーム２１の後方側左右の、側面視略逆Ｕ字状の部分が該当する。一対の横揺れ防止フレーム部２１ｃ、２１ｃは、本発明の横揺れ防止部の一例である。各横揺れ防止フレーム部２１ｃは、椅子部１０と台車部２０とが合体した状態において、椅子部１０の係合部１８と協働して椅子フレーム１３の一部を挟み込む（例えば図１（ａ）や図３（ａ）参照）。このために、椅子部１０が横揺れするのが防止され、入浴者は入浴用車椅子１に安心して乗ることができる。 In addition, in a state where the chair unit 10 and the cart unit 20 are combined, the chair unit 10 swings left and right with respect to the cart unit 20 by the pair of roll prevention frame units 21c and 21c included in the cart frame 21 (rolling). Is prevented. The pair of roll prevention frame portions 21c and 21c corresponds to the substantially inverted U-shaped portions on the left and right sides of the carriage frame 21 in a side view. The pair of roll prevention frame portions 21c and 21c is an example of the roll prevention portion of the present invention. Each rolling prevention frame portion 21c sandwiches a part of the chair frame 13 in cooperation with the engaging portion 18 of the chair portion 10 in a state where the chair portion 10 and the carriage portion 20 are combined (for example, FIG. ) And FIG. 3 (a)). For this reason, it is prevented that the chair part 10 rolls, and the bather can ride in the bathing wheelchair 1 in comfort.

その他、台車部２０の右側面側の下部には、入浴用車椅子１から浴槽（後述する）へと入浴者を移動させる場合に、入浴用車椅子１の位置決めに使用される一対の位置決め係合部２４ａ、２４ｂが設けられている。円板状に設けられる一対の位置決め係合部２４ａ、２４ｂは、それぞれ、別々の車輪２２の上側に固着されている。位置決め係合部２４ａ、２４ｂの形状や配置等は適宜変更してよい。
＜浮き上り防止機構＞ In addition, a pair of positioning engagement portions used for positioning the bathing wheelchair 1 when the bather is moved from the bathing wheelchair 1 to a bathtub (described later) at the lower part on the right side of the carriage unit 20. 24a and 24b are provided. A pair of positioning engagement portions 24 a and 24 b provided in a disk shape are respectively fixed to the upper side of separate wheels 22. The shape and arrangement of the positioning engagement portions 24a and 24b may be changed as appropriate.
<Floating prevention mechanism>

本実施形態の入浴用車椅子１の概略構成は以上のようであるが、入浴用車椅子１は、椅子部１０と台車部２０とが合体した状態において、椅子部１０が台車部２０に対して浮き上ることを防止する浮き上り防止機構３０を備えている。以下、この浮き上り防止機構３０について、主に図５を参照しながら説明する。なお、図５は、図４の一点鎖線Ｂで囲まれた部分の拡大図である。図５（ａ）は椅子部１０と台車部２０とが合体した状態を想定した図であり、図５（ｂ）は椅子部１０と台車部２０とが分離した状態を想定した図である。 The general configuration of the bathing wheelchair 1 according to the present embodiment is as described above. However, in the state where the chair unit 10 and the cart unit 20 are combined, the chair unit 10 floats with respect to the cart unit 20. A lifting prevention mechanism 30 for preventing the climbing is provided. Hereinafter, the floating prevention mechanism 30 will be described with reference mainly to FIG. 5 is an enlarged view of a portion surrounded by a one-dot chain line B in FIG. FIG. 5A is a diagram assuming a state in which the chair unit 10 and the cart unit 20 are combined, and FIG. 5B is a diagram assuming a state in which the chair unit 10 and the cart unit 20 are separated.

浮き上り防止機構３０は、椅子部１０に設けられる浮防止用係合部３１と、台車部２０に設けられる浮防止用被係合部３２と、を備えている。 The floating prevention mechanism 30 includes a floating prevention engaging portion 31 provided in the chair portion 10 and a floating prevention engaged portion 32 provided in the carriage portion 20.

断面視略Ｚ字状に設けられる浮防止用係合部３１は、回転軸３１ａを中心として回動可能に、座面部１１の下面側に設けられている。図５に示すように、浮防止用係合部３１は、椅子部１０が備える足受部１５の伸縮によって、その姿勢が変更される。すなわち、足受部１５が縮められて座面部１１の下側に収納されると、浮防止用係合部３１は、足受部１５に押されて、その先端部（回転軸３１ａから遠い方の端部；後端部）が持ち上げられる方向に回転（図５において反時計回り方向の回転）して第１の姿勢（図５（ａ）に示す姿勢）になる。一方、足受部１５が伸ばされて座面部１１の下側から引き出されると、浮防止用係合部３１は、足受部１５から力を受けないために、自重によって、その先端部が下がる方向に回転（図５において時計回り方向の回転）して第２の姿勢（図５（ｂ）に示す姿勢）になる。 The engagement portion 31 for preventing floating provided in a substantially Z-shape in cross section is provided on the lower surface side of the seat surface portion 11 so as to be rotatable about the rotation shaft 31a. As shown in FIG. 5, the posture of the anti-floating engagement portion 31 is changed by the expansion and contraction of the foot receiving portion 15 included in the chair portion 10. That is, when the foot receiving portion 15 is contracted and stored below the seat surface portion 11, the anti-floating engagement portion 31 is pushed by the foot receiving portion 15, and its distal end portion (the one farther from the rotating shaft 31 a). End (rear end) is rotated in the direction in which it is lifted (rotation in the counterclockwise direction in FIG. 5) to the first posture (the posture shown in FIG. 5A). On the other hand, when the foot receiving portion 15 is extended and pulled out from the lower side of the seating surface portion 11, the anti-floating engagement portion 31 does not receive a force from the foot receiving portion 15, so that its tip portion is lowered by its own weight. Rotate in the direction (clockwise rotation in FIG. 5) to the second posture (posture shown in FIG. 5B).

平面視（側面視）略五角形状に設けられる浮防止用被係合部３２は、台車フレーム２１の支持フレーム部２１ｂの前方端面に設けられている（図２（ｂ）参照）。浮防止用被係合部３２は、浮防止用係合部３１が第１の姿勢である場合、上方から見ると（図５（ａ）に示す矢印Ｄ方向に沿って見ると）、その一部が浮防止用係合部３１と重なるように設けられている。このために、椅子部１０が台車部２０に対して浮き上ろうとすると、浮防止用係合部３１と浮防止用被係合部３２とが接触して、椅子部１０の浮き上りを阻止する。換言すると、椅子部１０と台車部２０とが合体した状態で、足受部１５が座面部１１の下側に収納されていると、椅子部１０と台車部２０とは分離することができない。 The engaged portion 32 for preventing floating provided in a substantially pentagonal shape in plan view (side view) is provided on the front end surface of the support frame portion 21b of the carriage frame 21 (see FIG. 2B). When the floating preventing engaged portion 31 is in the first posture, when viewed from above (when viewed along the direction of arrow D shown in FIG. 5A), one of the floating preventing engaged portions 32 is shown. The portion is provided so as to overlap the floating preventing engagement portion 31. For this reason, when the chair part 10 tries to float with respect to the carriage part 20, the floating prevention engaging part 31 and the floating prevention engaged part 32 come into contact with each other to prevent the chair part 10 from floating up. . In other words, when the chair portion 10 and the cart portion 20 are combined, and the foot receiving portion 15 is stored below the seat surface portion 11, the chair portion 10 and the cart portion 20 cannot be separated.

一方、浮防止用被係合部３２は、浮防止用係合部３１が第２の姿勢である場合、上方から見ると、浮防止用係合部３１は重ならないように設けられている。このために、椅子部１０と台車部２０とが合体した状態で、足受部１５が座面部１１の下側から引き出されると、椅子部１０と台車部２０との分離が可能になる。足受部１５は、入浴者を椅子部１０に座ったままの状態で浴槽に入浴させる場合に使用されるものであり、入浴用車椅子１で入浴者を搬送する場合には使用されない（この場合足載せ部２３が使用される）。すなわち、足受部１５は、椅子部１０と台車部２０とを分離状態とする際に伸ばした状態とすることを前提に設けられたものであり、浮き上り防止機構３０と連動させるのに適している。 On the other hand, when the floating preventing engagement portion 31 is in the second posture, the floating preventing engaged portion 32 is provided so that the floating preventing engaging portion 31 does not overlap when viewed from above. For this reason, when the foot receiving portion 15 is pulled out from the lower side of the seat surface portion 11 in a state where the chair portion 10 and the cart portion 20 are combined, the chair portion 10 and the cart portion 20 can be separated. The foot support 15 is used when the bather is bathed in the bathtub while sitting on the chair 10, and is not used when the bather is transported by the bathing wheelchair 1 (in this case). The footrest 23 is used). That is, the foot support 15 is provided on the premise that the chair 10 and the carriage 20 are extended when they are separated from each other, and is suitable for interlocking with the lifting prevention mechanism 30. ing.

なお、本実施形態では、浮防止用係合部３１が座面部１１の下側に設けられる構成としたが、浮防止用係合部は足受部１５に設けられても構わない。この場合、浮防止用係合部は、姿勢変更しなくてもよく、本実施形態のように回動する構成である必要はない。 In this embodiment, the floating prevention engaging portion 31 is provided below the seat surface portion 11, but the floating prevention engaging portion may be provided in the foot receiving portion 15. In this case, the floating prevention engaging portion does not need to be changed in posture, and need not be configured to rotate as in this embodiment.

ところで、椅子部１０と台車部２０とを合体させようとした場合に、足受部１５が座面部１１の下側に収納されてしまっていることも有り得る。例えば、入浴者が椅子部１０に座っていない状態で、椅子部１０と台車部２０とを合体させる場合等が想定される。このような状態で椅子部１０と台車部２０とを合体させようとすると、浮防止用係合部３１と浮防止用被係合部３２とが衝突して、入浴用車椅子１に損傷が発生することが考えられる。本実施形態の入浴用車椅子１では、このような事態を避けるために、浮防止用被係合部３２が、回転軸３２ａ（図５（ａ）参照）を中心として回動できるようになっている。 By the way, when trying to unite the chair part 10 and the trolley | bogie part 20, the footrest part 15 may be accommodated in the lower side of the seat surface part 11. FIG. For example, the case where the chair part 10 and the trolley | bogie part 20 are united in the state where the bather is not sitting on the chair part 10 is assumed. If the chair portion 10 and the cart portion 20 are combined in such a state, the anti-floating engagement portion 31 and the anti-floating engaged portion 32 collide, and the bathing wheelchair 1 is damaged. It is possible to do. In the bathing wheelchair 1 of the present embodiment, in order to avoid such a situation, the engaged portion 32 for preventing floating can be rotated about the rotation shaft 32a (see FIG. 5A). Yes.

浮防止用被係合部３２は、外部から力が加えられない場合、図示しない付勢部材と、浮防止用被係合部３２に当接する壁面３２ｂとを利用して、図５（ａ）に示す状態で維持されるようになっている。足受部１５が座面部１１の下側に収納された状態の椅子部１０が台車部２０に合体される場合、浮防止用係合部３１が、一旦、浮防止用被係合部３２に接触する。しかし、この接触状態で椅子部１０が下げられると、浮防止用被係合部３２が、付勢部材の付勢力に反して回動（図５おいて反時計回り方向に回転）を開始する。そして、更に椅子部１０が下げられると、浮防止用係合部３１と浮防止用被係合部３２との接触が回避される。 When no force is applied from the outside, the floating prevention engaged portion 32 uses an urging member (not shown) and a wall surface 32b that comes into contact with the floating prevention engaged portion 32, as shown in FIG. It is to be maintained in the state shown in. When the chair portion 10 in a state in which the foot receiving portion 15 is accommodated on the lower side of the seat surface portion 11 is united with the carriage portion 20, the anti-floating engagement portion 31 temporarily becomes the anti-floating engaged portion 32. Contact. However, when the chair portion 10 is lowered in this contact state, the floating-prevented engaged portion 32 starts rotating (rotating counterclockwise in FIG. 5) against the urging force of the urging member. . And if the chair part 10 is further lowered | hung, the contact with the engaging part 31 for anti-floating and the engaged part 32 for anti-floating will be avoided.

この接触が回避された状態になると、浮防止用被係合部３２は、付勢部材の付勢力によって回動し、元の位置（図５（ａ）に示す状態）に戻る。すなわち、足受部１５が座面部１１の下側に収納された状態の椅子部１０が台車部２０に合体されるような事態が生じても、入浴用車椅子１に損傷が発生することを防止できる。そして、椅子部１０と台車部２０との合体後は、浮き上り防止機構３０の存在により、椅子部１０が台車部２０に対して浮き上ることは防止される。
＜ロック機構＞ When this contact is avoided, the anti-floating engaged portion 32 is rotated by the urging force of the urging member and returns to the original position (the state shown in FIG. 5A). That is, even if a situation occurs in which the chair portion 10 in a state where the footrest portion 15 is stored below the seat surface portion 11 is combined with the cart portion 20, the bathing wheelchair 1 is prevented from being damaged. it can. Then, after the chair unit 10 and the cart unit 20 are combined, the chair unit 10 is prevented from floating with respect to the cart unit 20 due to the presence of the lifting prevention mechanism 30.
<Lock mechanism>

次に、入浴用車椅子１が備えるロック機構４０について説明する。このロック機構４０は、外部昇降装置（本実施形態では、後述の入浴装置が該当する）によって椅子部１０が台車部２０から持ち上げられた場合に、椅子部１０と外部昇降装置とが係合した状態が外れることを防止する機構である。ロック機構４０の説明にあたっては、図１〜図４の他に、図６が適宜参照される。なお、図６は、図４の一点鎖線Ｃで囲まれた部分の拡大図である。図６（ａ）は椅子部１０と台車部２０とが合体した状態を想定した図であり、図６（ｂ）は椅子部１０と台車部２０とが分離した状態を想定した図である。 Next, the lock mechanism 40 provided in the bathing wheelchair 1 will be described. The lock mechanism 40 is configured such that when the chair unit 10 is lifted from the carriage unit 20 by an external lifting device (in this embodiment, a bathing device described later), the chair unit 10 and the external lifting device are engaged. It is a mechanism that prevents the state from coming off. In the description of the locking mechanism 40, FIG. 6 is appropriately referred to in addition to FIGS. 6 is an enlarged view of a portion surrounded by a one-dot chain line C in FIG. 6A is a diagram assuming a state in which the chair unit 10 and the cart unit 20 are combined, and FIG. 6B is a diagram assuming a state in which the chair unit 10 and the cart unit 20 are separated.

ロック機構４０は、椅子部１０に形成されている。ロック機構４０は、椅子部１０の上部側に設けられる第１の回動部材４１と、椅子部１０の下部側に設けられる第２の回動部材４２と、一端部が第１の回動部材４１に固着されるとともに他端部が第２の回動部材４２に固着されるワイヤ４３と、回動部材４１に付勢力を与える付勢部材４４と、を備えている（例えば図１や図４参照）。ワイヤ４３は、本発明の接続部材の一例である。 The lock mechanism 40 is formed in the chair portion 10. The lock mechanism 40 includes a first rotating member 41 provided on the upper side of the chair unit 10, a second rotating member 42 provided on the lower side of the chair unit 10, and one end of the first rotating member 41. And a wire 43 whose other end is fixed to the second rotating member 42 and a biasing member 44 that applies a biasing force to the rotating member 41 (for example, FIG. 1 or FIG. 1). 4). The wire 43 is an example of the connection member of the present invention.

第１の回動部材４１は、互いに対向配置される一対の板状部４１ａ、４１ｂと、一対の板状部４１ａ、４１ｂを連結する連結部４１ｃと、背当部１２に対して回動可能に第１の回動部材４１を支持する回転軸４１ｄと、を有する構成になっている（例えば図３参照）。第１の回動部材４１は、背当部１２の背面（後面）に設けられる凹部空間１２ａ内に設けられている。凹部空間１２ａは、椅子部１０の上部寄り、左右方向の略中央部に設けられている。 The first rotation member 41 is rotatable with respect to the backrest portion 12 and a pair of plate-like portions 41a and 41b arranged opposite to each other, a connecting portion 41c connecting the pair of plate-like portions 41a and 41b, and the backrest portion 12. And a rotating shaft 41d that supports the first rotating member 41 (see, for example, FIG. 3). The first rotating member 41 is provided in a recessed space 12 a provided on the back surface (rear surface) of the backrest portion 12. The recessed space 12a is provided near the upper portion of the chair portion 10 and at a substantially central portion in the left-right direction.

第２の回動部材４２は、断面視略Ｌ字状（例えば図４参照）に設けられた棒状部材であり、左右方向に延びる保持部材１３ａに回動可能に保持されている。保持部材１３ａは、椅子フレーム１３に固定されている。第２の回動部材４２は、その一端部４２ａが椅子部１０の左右方向の略中央部に位置し、他端部４２ｂが椅子部１０の左寄りとなるように配置されている（例えば図３（ｂ）参照）。また、第２の回動部材４２は、係合穴１８ａのほぼ真上となるように配置されている（例えば図４参照）。 The second rotating member 42 is a rod-shaped member provided in a substantially L shape (for example, see FIG. 4) in a cross-sectional view, and is rotatably held by a holding member 13a extending in the left-right direction. The holding member 13 a is fixed to the chair frame 13. The second rotating member 42 is disposed such that one end 42a thereof is positioned at a substantially central portion in the left-right direction of the chair 10 and the other end 42b is located on the left side of the chair 10 (for example, FIG. 3). (See (b)). Further, the second rotation member 42 is disposed so as to be almost directly above the engagement hole 18a (see, for example, FIG. 4).

ワイヤ４３は、背当部１２の背面に沿うように設けられている。第１の回動部材４１に一端部が固着されるワイヤ４３の他端部は、第２の回動部材４２の一端部４２ａに固着されている（例えば図３（ｂ）参照）。なお、椅子部１０と台車部２０とが分離した状態では、第２の回動部材４２はワイヤ４３によって上側に引っ張られて水平状態から傾いた状態となる。すなわち、ワイヤ４３が固着された一端部４２ａが上、ワイヤ４３が固着されていない他端部４２ｂが下となった状態で傾く。 The wire 43 is provided along the back surface of the backrest 12. The other end of the wire 43 whose one end is fixed to the first rotating member 41 is fixed to one end 42a of the second rotating member 42 (see, for example, FIG. 3B). In the state where the chair portion 10 and the cart portion 20 are separated, the second rotating member 42 is pulled upward by the wire 43 and is inclined from the horizontal state. That is, the one end 42a to which the wire 43 is fixed is inclined and the other end 42b to which the wire 43 is not fixed is downward.

付勢部材４４は、第１の回動部材４１に対して所定方向の回転力を付与する。付勢部材４４は、特に限定されるものではないが、例えばバネ部材等で構成でき、本実施形態では引っ張りバネで構成している。付勢部材４４の一端は、背当部１２に固定され、他端は第１の回動部材４１に固定されている。付勢部材４４は、回転軸４１ｄからずれた位置を上方に引きあげるように第１の回動部材４１に固定されているために、第１の回動部材に対して回転力を与える（図６参照）。図６において、付勢部材４４は、第１の回動部材４１に対して時計回り方向の回転力を与える。 The biasing member 44 applies a rotational force in a predetermined direction to the first rotating member 41. The biasing member 44 is not particularly limited, but can be constituted by, for example, a spring member or the like, and is constituted by a tension spring in the present embodiment. One end of the urging member 44 is fixed to the backrest 12, and the other end is fixed to the first rotating member 41. Since the urging member 44 is fixed to the first rotating member 41 so as to pull up the position displaced from the rotating shaft 41d, the urging member 44 applies a rotational force to the first rotating member (FIG. 6). In FIG. 6, the urging member 44 applies a clockwise rotational force to the first rotating member 41.

椅子部１０と台車部２０とが合体する場合、台車フレーム２１を構成する係合フレーム部２１ａの上端（係合穴１８ａから突出している）が第２の回動部材４２と当接して、第２の回動部材４２を回転する。この回転によって、第１の回動部材４１は、ワイヤ４３によって引っ張られ、付勢部材４４によって付与される方向と反対方向の回転力を受ける。このために、例えば図６（ａ）に示すように、第１の回動部材４１は凹部空間１２ａ内に収納される（第１の回動部材４１は第２の位置に配置される）。 When the chair portion 10 and the cart portion 20 are combined, the upper end of the engaging frame portion 21a constituting the cart frame 21 (projecting from the engaging hole 18a) comes into contact with the second rotating member 42, and The two rotation members 42 are rotated. By this rotation, the first rotating member 41 is pulled by the wire 43 and receives a rotational force in a direction opposite to the direction applied by the urging member 44. For this purpose, for example, as shown in FIG. 6A, the first rotating member 41 is accommodated in the recessed space 12a (the first rotating member 41 is disposed at the second position).

一方、椅子部１０と台車部２０とが分離する場合、台車フレーム２１を構成する係合フレーム部２１ａと第２の回動部材４２との当接が解除される。このために、第１の回動部材４１は、付勢部材４４によって与えられる回転力を受ける。このために、例えば図６（ｂ）に示すように、第１の回動部材４１は、その一部（一対の板状部４１ａ、４１ｂの一部）が凹部空間１２ａから突出する（第１の回動部材４１は第１の位置に配置される）。なお、付勢部材４４の付勢力による、第１の回動部材４１の回転量は、凹部空間１２ａの内壁との当接を利用して調整されている。 On the other hand, when the chair portion 10 and the cart portion 20 are separated, the contact between the engagement frame portion 21a constituting the cart frame 21 and the second rotating member 42 is released. For this reason, the first rotating member 41 receives the rotational force given by the biasing member 44. Therefore, for example, as shown in FIG. 6B, a part of the first rotating member 41 (a part of the pair of plate-like parts 41a and 41b) protrudes from the recessed space 12a (first The rotating member 41 is arranged at the first position). Note that the amount of rotation of the first rotating member 41 due to the urging force of the urging member 44 is adjusted using contact with the inner wall of the recessed space 12a.

椅子部１０と台車部２０とが合体している場合、ロック機構４０を構成する第１の回動部材４１は、凹部空間１２ａ内に収納されている。このために、外部昇降装置（後述の入浴装置が該当する）が備える係合部と、一対の係合フック１７ａ、１７ｂとの係合、及び、係合解除を自由に行える。一方、外部昇降装置の係合部と一対の係合フック１７ａ、１７ｂとが係合されて、椅子部１０が持ち上げられる状態（分離状態）となった場合には、第１の回動部材４１の一部が凹部空間１２ａから突出する。そして、この突出した部分が、外部昇降装置の係合部と一対の係合フック１７ａ、１７ｂとの係合が外れないようにロックを行う。以上からわかるように、ロック機構４０は、係合フレーム部２１ａの係合穴１８ａに対する嵌脱に連動して、外部昇降装置の係合部と一対の係合フック１７ａ、１７ｂとの係合のロックと、アンロック（ロック解除）とを行う。
＜入浴装置及び浴槽の構成例＞ When the chair part 10 and the cart part 20 are united, the 1st rotation member 41 which comprises the lock mechanism 40 is accommodated in the recessed part space 12a. For this reason, the engagement part with which an external raising / lowering apparatus (after-mentioned bathing apparatus corresponds), and a pair of engagement hooks 17a and 17b can be freely engaged and disengaged. On the other hand, when the engaging portion of the external lifting device and the pair of engaging hooks 17a and 17b are engaged and the chair portion 10 is lifted (separated state), the first rotating member 41 is moved. Part of the projection protrudes from the recess space 12a. The protruding portion locks the engagement portion of the external lifting device and the pair of engagement hooks 17a and 17b so as not to be disengaged. As can be seen from the above, the lock mechanism 40 engages the engagement between the engagement portion of the external lifting device and the pair of engagement hooks 17a, 17b in conjunction with the engagement / disengagement of the engagement frame portion 21a with the engagement hole 18a. Lock and unlock (unlock).
<Configuration example of bathing device and bathtub>

以下に、本実施形態の入浴用車椅子１の作用効果を説明するが、その前に、本実施形態の入浴用車椅子１とセットで使用される入浴装置及び浴槽の構成例について簡単に説明しておく。 Below, although the effect of the wheelchair 1 for bathing of this embodiment is demonstrated, before that, the structural example of the bathing apparatus used with the wheelchair 1 for bathing of this embodiment and a bathtub is demonstrated easily. deep.

図７は、本発明の実施形態に係る入浴用車椅子１とセットで使用される入浴装置５及び浴槽６を上から見た場合の概略平面図であり、図７（ａ）と図７（ｂ）とでは入浴装置５が備えるアーム部５１の位置が異なっている。図８は、本発明の実施形態に係る入浴用車椅子１とセットで使用される入浴装置５及び浴槽６を側面から見た場合の概略平面図であり、図８（ａ）は図７（ａ）の状態と、図８（ｂ）は図７（ｂ）の状態と対応している。なお、図８においては、入浴装置５及び浴槽６が配置される浴室の床Ｆと、壁Ｗとも合わせて示している。そして、床Ｆ及び壁Ｗによって実際には見えない部分は、一点鎖線で示している。 FIG. 7: is a schematic plan view at the time of seeing the bathing apparatus 5 and the bathtub 6 which are used with the wheelchair 1 for bathing which concerns on embodiment of this invention from the top, FIG. 7 (a) and FIG.7 (b) ) And the position of the arm portion 51 provided in the bathing device 5 are different. FIG. 8 is a schematic plan view of the bathing device 5 and the bathtub 6 used as a set with the bathing wheelchair 1 according to the embodiment of the present invention when viewed from the side, and FIG. ) And FIG. 8B correspond to the state of FIG. 7B. In addition, in FIG. 8, the floor F of the bathroom in which the bathing apparatus 5 and the bathtub 6 are arrange | positioned, and the wall W are shown together. And the part which is not actually seen by the floor F and the wall W is shown with the dashed-dotted line.

図７及び図８に示すように、入浴装置５は、平面視略矩形状に設けられる浴槽６の長手方向に並ぶように、浴槽６に並設される。入浴装置５は、基台部５０と、入浴用車椅子１の椅子部１０を着脱可能に設けられるアーム部５１と、アーム部５１を基台部５０に対して昇降可能とする昇降部５２と、アーム部５１を基台部５０に対してスライド移動可能とするスライド移動部５３と、を備える。入浴装置５は、本発明の外部昇降装置の一例である。 As shown in FIG.7 and FIG.8, the bathing apparatus 5 is arranged in parallel with the bathtub 6 so that it may rank with the longitudinal direction of the bathtub 6 provided in planar view substantially rectangular shape. The bathing device 5 includes a base part 50, an arm part 51 provided so that the chair part 10 of the bathing wheelchair 1 can be attached and detached, an elevating part 52 that allows the arm part 51 to be raised and lowered relative to the base part 50, A slide moving unit 53 that allows the arm unit 51 to slide relative to the base unit 50. The bathing device 5 is an example of the external lifting device of the present invention.

アーム部５１は、上下方向に並列配置される２本の棒状部と、２本の棒状部の端部間を連結する２つの円弧状部とで構成される環状部５１ａと、環状部５１ａをスライド移動部５３と接続する連結部５１ｂとを備える。なお、環状部５１ａの中央には、貫通孔が形成された板状部が設けられている（後述する）。 The arm portion 51 includes an annular portion 51a composed of two rod-shaped portions arranged in parallel in the vertical direction and two arc-shaped portions connecting between the end portions of the two rod-shaped portions, and an annular portion 51a. And a connecting portion 51b connected to the slide moving portion 53. A plate-like portion having a through hole is provided in the center of the annular portion 51a (described later).

このような入浴装置５は、例えば中度から重度の要介助者を、容易に浴槽６内に運んで入浴させることが可能である。また、このような入浴装置５は、椅子部１０を取り外した状態でアーム部５１が手すりとして利用できるので、例えば軽度の要介助者等の浴槽６内への移動を容易にする。更に、椅子部１０を取り外した状態で、アーム部５１が手すりとして利用されるために、アーム部５１をカバー部材等で覆う必要がない。すなわち、入浴装置５には、カバー部材を開閉するためのスペースが不要であり、入浴装置５の配置スペースの狭小化が期待できる。 Such a bathing device 5 can easily carry, for example, a moderate-to-severe caregiver into the bathtub 6 for bathing. Moreover, since the arm part 51 can be utilized as a handrail in the state which removed the chair part 10, such a bathing apparatus 5 makes it easy to move into the bathtub 6 for a light assistance person etc., for example. Furthermore, since the arm part 51 is used as a handrail with the chair part 10 removed, it is not necessary to cover the arm part 51 with a cover member or the like. That is, the bathing device 5 does not need a space for opening and closing the cover member, and a space for arranging the bathing device 5 can be expected to be narrowed.

なお、昇降部５２は、例えば油圧装置等を使用したリフト機構を備えるものであってよい。また、スライド移動部５３は、例えばレールを利用したスライド機構を備えるものであってよい。本実施形態では、スライド移動部５３は、第１のスライド部５３１と第２のスライド部５３２とを備え、アーム部５１を多段階で引き出せるようになっている。ただし、これに限らず、スライド移動部５３は１つのスライド部のみで構成されてもよい。 In addition, the raising / lowering part 52 may be provided with the lift mechanism which uses a hydraulic device etc., for example. The slide moving unit 53 may include a slide mechanism using a rail, for example. In the present embodiment, the slide moving part 53 includes a first slide part 531 and a second slide part 532 so that the arm part 51 can be pulled out in multiple stages. However, the present invention is not limited to this, and the slide moving unit 53 may be configured with only one slide unit.

浴槽６は、４つの側壁６０ａ〜６０ｄと、底壁６０ｅとに囲まれた凹部空間６１を有する。この凹部空間６１に湯や水を溜めることで、入浴者は湯等に浸かる（入浴する）ことができる。凹部空間６１に湯等を溜める方法は特に限定されるものではないが、本実施形態では、浴室の壁Ｗに設けられる蛇口７から湯等を出すことによって、凹部空間６１に湯等を溜めることができる（図８参照）。なお、底壁６０ｅには、凹部空間６１に溜めた湯等を外部へと排出する排出口（排水口）６２が設けられている。 The bathtub 6 has a recessed space 61 surrounded by four side walls 60a to 60d and a bottom wall 60e. By storing hot water or water in the concave space 61, the bather can be immersed in the hot water or the like (take a bath). Although the method of storing hot water etc. in the recessed space 61 is not specifically limited, in this embodiment, hot water etc. are stored in the recessed space 61 by taking out hot water etc. from the faucet 7 provided in the wall W of the bathroom. (See FIG. 8). The bottom wall 60e is provided with a discharge port (drain port) 62 for discharging hot water or the like stored in the recessed space 61 to the outside.

浴槽６は、４つの側壁６０ａ〜６０ｄのうち、２つの側壁６０ａ、６０ｂが浴室の壁Ｗに接するように配置されている。浴槽６の長手方向に平行な２つの側壁６０ａ、６０ｃのうち、浴室の壁Ｗに接しない側の側壁６０ｃは、浴室に設けられる洗い場等として使用される空間に面している。また、浴槽６の短手方向に平行な２つの側壁６０ｂ、６０ｄのうち、浴室の壁Ｗに接しない側の側壁６０ｄは、入浴装置５に面している。 The bathtub 6 is arrange | positioned so that two side wall 60a, 60b may contact the wall W of a bathroom among the four side walls 60a-60d. Of the two side walls 60a, 60c parallel to the longitudinal direction of the bathtub 6, the side wall 60c on the side not in contact with the bathroom wall W faces a space used as a washing place or the like provided in the bathroom. Of the two side walls 60 b and 60 d parallel to the short side direction of the bathtub 6, the side wall 60 d on the side not in contact with the bathroom wall W faces the bathing device 5.

浴槽６が配置される領域は、その底面Ｂが浴室の床Ｆよりも低く設けられており、浴槽６は、この底面Ｂに固定配置されている。すなわち、浴槽６の底壁６０ｅは、浴室の床Ｆよりも低い場所に位置する構成になっている。このように構成することによって、浴槽６を構成する側壁６０ａ〜６０ｄの上面の、床Ｆからの高さを低くできるので、入浴者（ここでは入浴用車椅子１を使用しない入浴者が想定される）は側壁６０ｃを難なく跨いで入浴することができる。なお、本実施形態では、入浴装置５を構成する基台部５０も底面Ｂに配置されている。 As for the area | region where the bathtub 6 is arrange | positioned, the bottom face B is provided lower than the floor F of the bathroom, and the bathtub 6 is fixedly arranged on the bottom face B. That is, the bottom wall 60e of the bathtub 6 is configured to be located in a place lower than the floor F of the bathroom. By comprising in this way, since the height from the floor F of the upper surface of the side walls 60a-60d which comprises the bathtub 6 can be made low, a bather (the bather who does not use the wheelchair 1 for bathing here is assumed) ) Can bathe across the side wall 60c without difficulty. In addition, in this embodiment, the base part 50 which comprises the bathing apparatus 5 is also arrange | positioned at the bottom face B. FIG.

その他、浴槽６の側壁６０ｃには、一対の溝部６３ａ、６３ｂが設けられている。一対の溝部６３ａ、６３ｂは、入浴用車椅子１に設けられる一対の位置決め係合部２４ａ、２４ｂと協働して、入浴用車椅子１の位置を位置決めする機能を発揮する。
＜入浴用車椅子の作用効果＞ In addition, a pair of groove portions 63 a and 63 b are provided on the side wall 60 c of the bathtub 6. The pair of groove portions 63a and 63b exhibit a function of positioning the position of the bathing wheelchair 1 in cooperation with the pair of positioning engagement portions 24a and 24b provided in the bathing wheelchair 1.
<Effect of bathing wheelchair>

次に、入浴用車椅子１に乗った要介助者（入浴者）を、入浴装置５及び浴槽６を使って入浴させる場合に行われる一連の動作を説明しながら、入浴用車椅子１の作用効果について説明する。 Next, the action effect of the bathing wheelchair 1 will be described while explaining a series of operations performed when a bather who takes the bathing wheelchair 1 takes a bath using the bathing device 5 and the bathtub 6. explain.

図９〜図１１は、いずれも、本発明の実施形態に係る入浴用車椅子１を利用して要介助者を入浴させる場合に行われる一連の動作を説明するための図である。なお、図９、図１０、図１１の順に、一連の動作は進行する。 FIGS. 9-11 is a figure for demonstrating a series of operation | movement performed when bathers are bathed using the wheelchair 1 for bathing which concerns on embodiment of this invention. A series of operations proceeds in the order of FIG. 9, FIG. 10, and FIG.

まず、図９に示すように、要介助者Ｍが乗せられた入浴用車椅子１が浴室に運ばれてくる。なお、浴室に運ばれて来る段階では、足受部１５は座面部１１の下側に収納されており、浮き上り防止機構３０（例えば図４（ａ）参照）によって、椅子部１０が台車部２０に対して浮き上ることは防止されている。足受部１５は、例えば、入浴用車椅子１が浴室に運びこまれて、位置決めされた段階で、座面部１１の下側から引き出されればよい。そして、これにより、浮き上り防止機構３０による、椅子部１０と台車部２０との分離不能状態が解除され、入浴の準備が進められることになる。 First, as shown in FIG. 9, the bathing wheelchair 1 on which a person who needs assistance M is placed is carried to the bathroom. At the stage of being transported to the bathroom, the foot receiving portion 15 is housed below the seat surface portion 11, and the chair portion 10 is moved to the carriage portion by the lifting prevention mechanism 30 (see, for example, FIG. 4A). It is prevented from rising with respect to 20. The foot receiving portion 15 may be pulled out from the lower side of the seating surface portion 11 when the bathing wheelchair 1 is brought into the bathroom and positioned, for example. As a result, the state in which the chair unit 10 and the cart unit 20 cannot be separated by the lifting prevention mechanism 30 is released, and preparation for bathing is advanced.

なお、入浴用車椅子１の位置決めは、入浴用車椅子１に設けられる一対の位置決め係合部２４ａ、２４ｂを、浴槽６に設けられる一対の溝部６３ａ、６３ｂに嵌め込むことで達成できる。また、要介助者Ｍが乗せられた入浴用車椅子１が浴室に運ばれて来ることに前後して、介助者等は、スライド移動部１３を利用して、アーム部５１を洗い場側に引っ張り出しておく必要がある。 The positioning of the bathing wheelchair 1 can be achieved by fitting the pair of positioning engaging portions 24 a and 24 b provided in the bathing wheelchair 1 into the pair of grooves 63 a and 63 b provided in the bathtub 6. Further, before and after the bathing wheelchair 1 on which the person requiring assistance M is placed is brought into the bathroom, the assistant or the like uses the slide moving unit 13 to pull out the arm unit 51 to the washing area side. It is necessary to keep.

入浴用車椅子１が所定の位置にセットされると、例えば介助者等は、昇降部５２を上向きに駆動させる電源スイッチ（不図示）をオンにする。これによって、浴室側に引っ張り出されたアーム部５１が上昇され、アーム部５１と、入浴用車椅子１に設けられる一対の係合フック１７ａ、１７ｂとが係合される。そして、入浴用車椅子１の椅子部１０が持ち上げられて、椅子部１０と台車部２０とが分離する（図１０参照）。なお、アーム部５１は本発明の係合部の一例であり、一対の係合フック１７ａ、１７ｂは本発明の被係合部の一例である。 When the bathing wheelchair 1 is set at a predetermined position, for example, an assistant turns on a power switch (not shown) that drives the elevating unit 52 upward. Thereby, the arm part 51 pulled out to the bathroom side is raised, and the arm part 51 and the pair of engagement hooks 17a and 17b provided in the wheelchair 1 for bathing are engaged. And the chair part 10 of the wheelchair 1 for bathing is lifted, and the chair part 10 and the trolley | bogie part 20 isolate | separate (refer FIG. 10). The arm 51 is an example of the engaging portion of the present invention, and the pair of engaging hooks 17a and 17b is an example of the engaged portion of the present invention.

ところで、椅子部１０が台車部２０から分離されると、ロック機構４０によって、アーム部５１と一対の係合フック１７ａ、１７ｂとの係合が外れないようにロックがかけられる。詳細には、図１２に示すように、ロック機構４０を構成する第１の回動部材４１の一部が凹部空間１２ａから突出して、アーム部５１と係合するようになる。更に詳細には、環状部５１ａ（アーム部５１の構成要素）の中央に設けられた板状部５１ｃが備える貫通孔Ｈと、第１の回動部材４１の突出部分が干渉し合うことによって、アーム部５１と一対の係合フック１７ａ、１７ｂとの係合状態が解消されることを邪魔する（すなわちロックを行う）。このために、要介助者Ｍの安全性が高められる。 By the way, when the chair part 10 is separated from the cart part 20, the lock mechanism 40 locks the arm part 51 and the pair of engagement hooks 17a, 17b so as not to be disengaged. Specifically, as shown in FIG. 12, a part of the first rotating member 41 constituting the locking mechanism 40 protrudes from the recessed space 12 a and engages with the arm portion 51. More specifically, the through hole H provided in the plate-like portion 51c provided at the center of the annular portion 51a (the component of the arm portion 51) and the protruding portion of the first rotating member 41 interfere with each other, This prevents the engagement between the arm 51 and the pair of engagement hooks 17a and 17b from being canceled (that is, locks). For this reason, the safety of the care recipient M is increased.

なお、図１２は、本発明の実施形態に係る入浴用車椅子１が備えるロック機構４０の作用を説明するための図である。図１２は、図６（ｂ）にアーム部５１が追加された図に該当する。 In addition, FIG. 12 is a figure for demonstrating the effect | action of the lock mechanism 40 with which the wheelchair 1 for bathing concerning embodiment of this invention is provided. FIG. 12 corresponds to a view in which an arm portion 51 is added to FIG.

要介助者Ｍを乗せた椅子部１０が所定の高さまで持ち上げられると、介助者等は、スライド移動部１３を利用して、椅子部１０がぶら下げられたアーム部５１を、浴槽６側に向けて押し込む。そして、介助者等は、昇降部１２を下向きに駆動させる電源スイッチをオンにする。これによって、椅子部１０がアーム部５１とともに下降され、湯が溜められた浴槽６内（凹部空間６１内）に要介助者Ｍが移動される（図１１参照）。要介助者Ｍが浴槽６外へと運び出される場合には、以上と反対の動作が行われる。 When the chair portion 10 on which the assistant M is placed is lifted to a predetermined height, the assistant or the like uses the slide moving portion 13 to point the arm portion 51 on which the chair portion 10 is suspended toward the bathtub 6 side. Push in. Then, an assistant or the like turns on a power switch that drives the elevating unit 12 downward. Thereby, the chair part 10 is lowered together with the arm part 51, and the person requiring assistance M is moved into the bathtub 6 (within the recessed space 61) where hot water is stored (see FIG. 11). When the person requiring assistance M is carried out of the bathtub 6, the operation opposite to the above is performed.

なお、要介助者Ｍを浴槽６外へと運び出して、椅子部１０と台車部２０とが合体されると、ロック機構４０による、アーム部５１と一対の係合フック１７ａ、１７ｂとの係合をロックした状態は解除される。このために、入浴用車椅子１（椅子部１０）とアーム部５１との係合を解消できる。また、椅子部１０と台車部２０とが合体されると、要介助者Ｍは足載せ部２３に足を載せることが可能になる。このために足受部１５は、座面部１１の下側に収納される。そして、これにより、浮き上り防止機構３０によって、椅子部１０が台車部２０から浮き上ることが防止されるようになるために、要介助者Ｍは安全に運搬されることになる。 In addition, when the assistant M required is carried out of the bathtub 6 and the chair part 10 and the cart part 20 are united, the engagement between the arm part 51 and the pair of engagement hooks 17a and 17b by the lock mechanism 40. The locked state is released. For this reason, the engagement between the bathing wheelchair 1 (chair part 10) and the arm part 51 can be eliminated. In addition, when the chair unit 10 and the cart unit 20 are combined, the person requiring assistance M can place his / her feet on the footrest unit 23. For this purpose, the foot receiving portion 15 is stored below the seat surface portion 11. As a result, the chair portion 10 is prevented from floating from the cart portion 20 by the lift prevention mechanism 30, so that the person requiring assistance M is transported safely.

ところで、例えば、椅子部１０と台車部２０とを合体させる際に、アーム部５１の位置が正規の位置（本来あるべき位置）からずれた状態となることが生じ得る。例えば、椅子部１０に載っている入浴者Ｍが暴れたり、台車部２０の位置が所定の位置からずれていたりした場合等に、前述のアーム部５１の位置ずれが生じ得る。アーム部５１の位置が非正規な位置にある状態で、椅子部１０と台車部２０とを合体させようとした場合、第１の回動部材４１がアーム部５１に引っ掛かった状態となることがある。そして、この引っ掛かりが発生した状態で椅子部１０を下げると、係合フレーム部２１ａと当接する第２の回動部材４２の回動によってワイヤ４３に過負荷が加わり、ワイヤ４３が切れたり、伸びてしまったりする事態が起こり得る。 By the way, for example, when the chair unit 10 and the carriage unit 20 are combined, the position of the arm unit 51 may be shifted from a normal position (position that should be originally). For example, when the bather M resting on the chair part 10 is rampant or the position of the carriage part 20 is deviated from a predetermined position, the position of the arm part 51 can be displaced. When the chair unit 10 and the cart unit 20 are to be combined with the arm unit 51 in an irregular position, the first rotating member 41 may be caught by the arm unit 51. is there. When the chair portion 10 is lowered in a state where the catch is generated, an overload is applied to the wire 43 due to the rotation of the second rotation member 42 contacting the engagement frame portion 21a, and the wire 43 is cut or stretched. Can happen.

上述の懸念事項を解消するために、第１の回動部材４１と第２の回動部材４２との連結がワイヤ４３のみを用いて行われるのではなく、図１３（変形例を示している）に示すように、ワイヤ４３と、伸縮可能な弾性部材４５とを用いて行われるようにしてよい。伸縮可能な弾性部材４５は、ワイヤ４３の一端側（上端側或いは下端側）に配置されてもよいし、ワイヤ４３に挟まれるように配置されてもよい。また、場合によっては複数位置に配置されてもよい。ただし、伸縮可能な弾性部材４５は、部品点数を減らすために、ワイヤ４３の一端側に配置するのが好ましい。また、図１３に示す構成においては、伸縮可能な弾性部材４５がユーザーから見えないように（意匠性を考慮して）、伸縮可能な弾性部材４５は、ワイヤ４３の下端側ではなく上端側に配置されている。 In order to eliminate the above-mentioned concerns, the connection between the first rotating member 41 and the second rotating member 42 is not performed using only the wire 43, but is shown in FIG. ), The wire 43 and a stretchable elastic member 45 may be used. The elastic member 45 that can be expanded and contracted may be disposed on one end side (upper end side or lower end side) of the wire 43, or may be disposed so as to be sandwiched between the wires 43. In some cases, it may be arranged at a plurality of positions. However, the elastic member 45 that can be expanded and contracted is preferably arranged on one end side of the wire 43 in order to reduce the number of parts. In the configuration shown in FIG. 13, the elastic member 45 that can be expanded and contracted is not on the lower end side of the wire 43 but on the upper end side so that the elastic member 45 that can be expanded and contracted is not visible to the user (in consideration of design). Has been placed.

伸縮可能な弾性部材４５は、例えば引っ張りバネ等のバネ部材で構成できるが、これに限定される趣旨ではなく、例えばゴム等の他の部材で構成されてもよい。図１３に示す例では、第１の回動部材４１を付勢する付勢部材４４が引っ張りバネで構成されていることを考慮して、伸縮可能な弾性部材４５は引っ張りバネで構成している。伸縮可能な弾性部材４５は、原則として、ワイヤ４３と当該弾性部材４５とで構成される接続部材に過負荷が加わっていない状態では伸びず、過負荷が加わった状態で伸びるのが好ましい。第１の回動部材４１を付勢する付勢部材４４と、伸縮可能な弾性部材４５とをいずれも引っ張りバネで構成すると、このような状態の設計（計算）を行い易い。 The elastic member 45 that can be expanded and contracted can be configured by a spring member such as a tension spring, but is not limited thereto, and may be configured by another member such as rubber. In the example shown in FIG. 13, the elastic member 45 that can be expanded and contracted is constituted by a tension spring in consideration that the urging member 44 that urges the first rotating member 41 is constituted by a tension spring. . In principle, it is preferable that the elastic member 45 that can be expanded and contracted does not extend in a state where an overload is not applied to the connecting member constituted by the wire 43 and the elastic member 45 but extends in an overloaded state. If both the urging member 44 that urges the first rotating member 41 and the elastic member 45 that can be expanded and contracted are constituted by tension springs, it is easy to design (calculate) such a state.

図１３に例示する構成にすると、第１の回動部材４１がアーム部５１に引っ掛かった状態で椅子部１０を下げて接続部材（ワイヤ４３と弾性部材４５を含む）に過負荷が加わっても、弾性部材４５が伸びるためにワイヤ４３が切れたり、伸びたりすることがない。そして、過負荷が加わった状態が解消されれば、弾性部材４５は元の長さに戻るために、接続部材を過負荷が加わる前の状態に復帰することができる。
＜その他＞ In the configuration illustrated in FIG. 13, even if the chair member 10 is lowered while the first rotating member 41 is hooked on the arm portion 51 and an overload is applied to the connection member (including the wire 43 and the elastic member 45). Since the elastic member 45 is extended, the wire 43 is not cut or extended. And if the state to which the overload was added is eliminated, since the elastic member 45 will return to the original length, it can return a connection member to the state before an overload was added.
<Others>

以上に示した実施形態は本発明の例示であり、本発明の適用範囲は、以上に示した実施形態の構成に限定されるものではない。例えば、以上に示した浮き上り防止機構３０やロック機構４０はあくまでも例示であり、本発明の技術思想の範囲内で種々の変更が行われてよい。また、本発明の入浴用車椅子が適用される入浴装置５や浴槽６も例示にすぎず、本発明の入浴用車椅子が適用される入浴装置や浴槽の構成は別の形態であっても勿論構わない。 The embodiment described above is an exemplification of the present invention, and the scope of application of the present invention is not limited to the configuration of the embodiment described above. For example, the floating prevention mechanism 30 and the lock mechanism 40 described above are merely examples, and various changes may be made within the scope of the technical idea of the present invention. Further, the bathing device 5 and the bathtub 6 to which the bathing wheelchair of the present invention is applied are merely examples, and the configuration of the bathing device and the bathtub to which the bathing wheelchair of the present invention is applied may be of another form. Absent.

１入浴用車椅子
５入浴装置（外部昇降装置）
１０椅子部
１５足受部
１７ａ、１７ｂ係合フック（被係合部）
１８ａ係合穴
２０台車部
２１ａ係合フレーム部
２１ｃ横揺れ防止フレーム部（横揺れ防止部）
３０浮き上り防止機構
４０ロック機構
４１第１の回動部材
４２第２の回動部材
４３ワイヤ（接続部材）
４４付勢部材
４５伸縮可能な弾性部材
５１アーム部（係合部） 1 Wheelchair for bathing 5 Bathing device (external lifting device)
DESCRIPTION OF SYMBOLS 10 Chair part 15 Foot receiving part 17a, 17b Engagement hook (engaged part)
18a Engagement hole 20 Carriage part 21a Engagement frame part 21c Roll prevention frame part (roll prevention part)
30 Lifting prevention mechanism 40 Lock mechanism 41 First rotating member 42 Second rotating member 43 Wire (connection member)
44 Biasing member 45 Elastic member 51 which can be expanded and contracted 51 Arm part (engagement part)

Claims

A chair part and a carriage part on which the chair part is placed, and the chair part is lifted by engaging an engagement part included in an external lifting device with an engaged part provided in the chair part; A wheelchair for bathing capable of separating the part and the cart part,
When the chair part and the carriage part are separated, locking is performed so that the engagement part and the engaged part are not disengaged, and the chair part and the carriage part are combined. A lock mechanism for releasing the lock in the case ,
The chair part and the carriage part are united by fitting the engagement hole provided in the chair part and the engagement frame part included in the carriage part,
The bathing wheelchair characterized in that the locking mechanism performs the locking and the unlocking in conjunction with the engagement / disengagement of the engagement frame portion with respect to the engagement hole .

The locking mechanism includes
A first rotating member biased by the biasing member;
A second rotating member coupled to the first rotating member using a connection member;
Contains
The locking mechanism is
When the engagement frame portion is not fitted in the engagement hole, the first rotation member is arranged at the first position by the urging force of the urging member to perform the locking,
When the engagement frame portion is fitted into the engagement hole, the first rotation member is disposed at the second position by the rotation of the second rotation member in contact with the engagement frame portion. The wheelchair for bathing according to claim 1, wherein the lock is released .

The wheelchair for bathing according to claim 2, wherein the connecting member includes an elastic member that can be expanded and contracted .

The carriage unit according to claim 1 in which the united states if obtained, the seat part, characterized in that the anti-yaw unit that prevents the roll is provided for the carriage portion The wheelchair for bathing according to any one of 3 to 3.

The lift prevention mechanism which prevents that the said chair part floats with respect to the said trolley | bogie part when the said united state is obtained is provided. Wheelchair for bathing.

The chair part is provided with an extendable foot support part,
6. The bathing wheelchair according to claim 5 , wherein the lifting prevention mechanism switches whether to prevent the lifting in conjunction with expansion and contraction of the footrest .