JP2018064682A - Folding care wheelchair - Google Patents

Folding care wheelchair Download PDF

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JP2018064682A
JP2018064682A JP2016204069A JP2016204069A JP2018064682A JP 2018064682 A JP2018064682 A JP 2018064682A JP 2016204069 A JP2016204069 A JP 2016204069A JP 2016204069 A JP2016204069 A JP 2016204069A JP 2018064682 A JP2018064682 A JP 2018064682A
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pipe
handle
wheelchair
seat member
pipes
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JP6202769B1 (en
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稔章 内山
Toshiaki Uchiyama
稔章 内山
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Uchie Co Ltd
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Uchie Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a folding care wheelchair that is rich in stability and safety.SOLUTION: The folding care wheelchair has essential component members composed of a handle pipe 1, seat member 5, front pipe 3, rear pipe 2, and a step pipe 4. By using these members and a plurality of connection members, the wheelchair is structured to have the main body made foldable simultaneously in the forward/backward directions and vertical direction. The wheel chair is characterized by the flip-up type armrest 8; which has one end vertically freely rotatably and attachably/detachably installed to the handle pipe by a pipe joint method; which has the lower end rotatably installed in the seat member, energized constantly upward by a built-in spring, and supported through a double pipe-structured extension type support pipe that is vertically movable for a fixed stroke; and which is composed of a pair of left and right L-shaped pipes with the tip end bent nearly orthogonally that is installed in a foldable manner linked with the chair main body.SELECTED DRAWING: Figure 1

Description

本発明は、主に介護を必要とする高齢者や身体の不自由な方に好適な介護用車いすに係り、車いすとしての機能に加え、浴室用いすとしての機能も備えた折りたたみ式の介護用車いすに関する。   The present invention relates to a wheelchair suitable for elderly people who need nursing mainly and persons with physical disabilities, and is provided with a function as a wheelchair and a folding nursing care function provided with a function as a bathroom chair. Regarding wheelchairs.

この種の従来の折りたたみ式介護用車いすとしては、例えば本願出願人が先に提案した折りたたみ式介護用車いすが知られている(特許文献1参照)。この折りたたみ式介護用車いすは、介護を必要とする高齢者や身体の不自由な方に好適であるのみならず、浴室用いす及び簡易便器としての機能も備え、さらに狭く限られたスペースの浴室や脱衣場での使用や、収納、保管、携帯、持ち運びにも便利な折りたたみ式の介護用車いすであり、その構造は、左右一対のフロント・ハンドルパイプとリヤーパイプが上下方向に回動自在に枢着され、かつ便座付き座板が折りたたみ可能に取付けられ、フロント・ハンドルパイプの下部には着脱式のステップが前後左右に回動可能に取付けられ、さらにステップパイプの先端には、キャスターと車輪を別々にロック、解除できるキャスター回転ロック機構及び車輪回転ロック機構の二つの機構を備えたキャスターが取付けられ、前記座板の両サイドに跳ね上げ式肘掛けを有し、前記フロント・ハンドルパイプとリヤーパイプのクロス部を支点に前記フロント・ハンドルパイプとリヤーパイプ間に設けたリンク機構と便座付き座板の前記座面支持アームの作用によりいす本体が前後方向に折りたたまれる構造となしたものである。   As this type of conventional folding nursing wheelchair, for example, a folding nursing wheelchair previously proposed by the applicant of the present application is known (see Patent Document 1). This foldable nursing wheelchair is not only suitable for elderly people who need nursing care and people with physical disabilities, but also has a function as a bathroom chair and a simple toilet, and a bathroom in a narrow space. It is a folding nursing wheelchair that is convenient for storage, storage, carrying and carrying in a dressing room, and its structure is such that a pair of left and right front handle pipes and rear pipe are pivotable up and down. A seat plate with a toilet seat is foldably attached, and a detachable step is attached to the lower part of the front handle pipe so that it can be pivoted back and forth and left and right. Further, a caster and a wheel are attached to the tip of the step pipe. A caster equipped with two mechanisms, a caster rotation lock mechanism and a wheel rotation lock mechanism that can be locked and released separately, is attached to both sides of the seat plate. A chair body that has a raised armrest, and that has a link mechanism provided between the front handle pipe and the rear pipe with the cross section of the front handle pipe and the rear pipe as a fulcrum and the seat surface support arm of the seat plate with the toilet seat. Has a structure that can be folded in the front-rear direction.

しかしながら、上記構成の折りたたみ式介護用車いすを含むこの種の介護用車いすの場合、以下に記載する課題があった。
座面の両サイドに設けられる跳ね上げ式肘掛けは、通常、一端がフロント・ハンドルパイプに上下方向に回動可能に枢着され、他端が座板に着脱可能となす着脱式パイプからなり、その肘掛け自体も直線的な部材で構成されたものが一般的である。しかし、このような直線的な部材で構成された跳ね上げ式肘掛けの場合、特に介護を必要とする高齢者や足腰の弱い人、身体の不自由な方の使用時においては、座面に座った体の左右は両サイドの肘掛けで支えられるため座面の横方向への体の倒れは防止できても、体の正面側はいわゆる柵のない状態にあるため、座面に座ったときに体が前屈みになったり、前方に倒れてしまう危険性があり使用中における安定性、安全性が十分とは言えないという課題を有していた。
However, in the case of this kind of nursing wheelchair including the folding nursing wheelchair having the above configuration, there are problems described below.
The flip-up armrests provided on both sides of the seating surface are usually composed of a detachable pipe whose one end is pivotally attached to the front handle pipe so as to be vertically movable and the other end is detachable from the seat plate. As for the armrest itself, what was comprised by the linear member is common. However, in the case of a flip-up type armrest composed of such a straight member, it is particularly important to sit on the seat surface when using elderly people who need nursing care, people with weak legs, or physically disabled people. The left and right sides of the body are supported by armrests on both sides, so the body can be prevented from falling down in the lateral direction, but the front side of the body is in a state without a so-called fence, so when sitting on the seat There is a risk that the body is bent forward or falls forward, and the stability and safety during use cannot be said to be sufficient.

特許第3840466号公報Japanese Patent No. 3840466

本発明は、上記した従来の折りたたみ式介護用車いすの課題に鑑みてなされたもので、特に介護を必要とする高齢者や足腰の弱い人、身体の不自由な方でも車いす使用中における座面の横方向への体の倒れを防止できるのみならず、車いす前方方向への前屈みや傾倒を防止することができる極めて安定性、安全性に富む折りたたみ式介護用車いすを提供しようとするものである。   The present invention has been made in view of the problems of the conventional folding nursing wheelchairs described above, and in particular, a seating surface in use of a wheelchair by an elderly person who needs nursing care, a person who has weak legs, and a disabled person. It is intended to provide a foldable nursing wheelchair that is extremely stable and safe enough not only to prevent the body from falling down in the lateral direction but also to prevent forward bending and tilting in the forward direction of the wheelchair. .

本発明に係る折りたたみ式介護用車いすは、浴室用いすとしての機能を兼ね備えた車いすであり、基本的にはハンドルパイプ、シート部材、フロントパイプ、リヤーパイプ、ステップパイプを主たる構成部材とし、これらの部材と複数の連結部材を使用して、本体が前後方向及び上下方向に同時に折りたたまれる構造となしたもので、その要旨は、所定の間隔を隔てて相平行する一対のハンドルパイプに座面を形成するための一対のシート部材が上下方向に回動可能に枢着され、該シート部材の下方において、シート部材にリヤーパイプの上端が前後方向に回動可能に枢着され、さらにリヤーパイプの上部に略L字形のフロントパイプの上端が上下方向に回動可能に枢着され、ステップパイプ間において当該ステップパイプに凹形連結部材の左右両端部が上下方向に回動可能に枢着されて連結され、かつ前記凹形連結部材、フロントパイプ及びハンドルパイプ間に前後方向に配置されて前端部を凹形連結部材及びフロントパイプに、後端部をハンドルパイプに、それぞれ回動可能に枢着された左右一対の長尺の連結部材を介してハンドルパイプとステップパイプが前後方向に開閉可能となすとともに、左右のリヤーパイプ間に横設した連結棒と前記凹形連結部材間には凹形連結部材を略水平に保持するための引張バネが掛けられ、本体のハンドルパイプとシート部材を把持し、シート部材を上方向に回動させることにより、ハンドルパイプ、フロントパイプ及び凹形連結部材とを前後方向につなぐ前記長尺の連結部材の作用により当該本体が同時に前後方向及び上下方向に折りたたまれる構造となし、左右のハンドルパイプ部に本体開脚状態自動ロック機構を備えた折りたたみ式介護用車いすであって、ハンドルパイプに一端がパイプジョイント方式により上下方向に回動自在にかつ着脱可能に取着され、シート部材に下端が回動可能に取着されかつ内蔵されたバネにより常時上方向に付勢されて一定ストローク上下動可能な二重管構造の繰出し式支持パイプを介して支持され、いす本体と連動して折りたたまれるごとく設けた、先端部が略直角に屈曲した左右一対のL字形パイプからなる跳ね上げ式ひじ掛けを備えたことを特徴とするものである。   The folding nursing wheelchair according to the present invention is a wheelchair having a function as a bathroom chair, and basically includes a handle pipe, a seat member, a front pipe, a rear pipe, and a step pipe as main components, and these members and Using a plurality of connecting members, the main body is configured to be folded in the front-rear direction and the vertical direction at the same time, and the gist thereof is to form a seating surface on a pair of handle pipes that are parallel to each other at a predetermined interval. A pair of seat members for pivoting is pivotably mounted in the vertical direction. Below the seat member, the upper end of the rear pipe is pivotally pivoted to the seat member so as to pivot in the front-rear direction. The upper end of the letter-shaped front pipe is pivotally mounted so as to be able to rotate in the vertical direction, and the concave connecting member is connected to the step pipe between the step pipes. Both right end portions are pivotally connected to be pivotable in the vertical direction, and are disposed in the front-rear direction between the concave connection member, the front pipe and the handle pipe, and the front end portion is connected to the concave connection member and the front pipe. The handle pipe and the step pipe can be opened and closed in the front-rear direction via a pair of left and right long connecting members pivotally attached to the handle pipe, respectively, and connected horizontally between the left and right rear pipes A tension spring for holding the concave connecting member substantially horizontally is hung between the rod and the concave connecting member, gripping the handle pipe and the seat member of the main body, and rotating the seat member upward The main body is simultaneously folded in the front-rear direction and the up-down direction by the action of the long connection member that connects the handle pipe, the front pipe, and the concave connection member in the front-rear direction. Foldable nursing wheelchair with left and right handle pipes with automatic locking mechanism on the left and right handle pipes, one end of the handle pipe being pivotable in the vertical direction and removable by a pipe joint system The lower end of the seat member is attached to the seat member so that it can be pivoted, and is supported by a built-in spring that is always urged upward by a built-in spring and can be moved up and down for a fixed stroke. A flip-up type armrest comprising a pair of left and right L-shaped pipes, the tip of which is bent at a substantially right angle, is provided to be folded in conjunction with the chair body.

又、前記本体開脚状態自動ロック機構としては、シート部材のハンドルパイプ付け根部下面に形成した段付き部と、上面に前記段付き部に下から係合可能な突起部を有し、前記ハンドルパイプに内蔵されたバネにより常時上方向に付勢されて一定ストローク上下動するごとく当該ハンドルパイプに外嵌された筒形レバーと、該筒形レバーの側面に回動可能に枢着され、かつ該筒形レバーとの間に掛けたバネにより常に一定方向に回動力を付勢され、その先端部が前記シート部材付け根部下面に摺接する回転アームとから構成され、本体開脚時には前記段付き部に前記突起部が自動的に係合して本体開脚状態がロックされ、前記筒形レバーハンドルパイプに内蔵されたバネに抗して下げると、前記段付き部と突起部が分離されてロックが解除されると同時に前記回転アームが前記筒形レバーとの間に掛けたバネにより回動して当該ロック開放状態が保持される仕組みとなしたものを用いることができる。   The main body open state automatic lock mechanism includes a stepped portion formed on a bottom surface of a handle pipe base of a seat member, and a protrusion on the top surface that can be engaged with the stepped portion from below. A cylindrical lever that is constantly urged upward by a spring built in the pipe and is vertically fitted to the handle pipe so as to move up and down for a fixed stroke; and pivotally attached to a side surface of the cylindrical lever; and The rotating force is always urged in a fixed direction by a spring hung between the cylindrical lever, and its tip is composed of a rotating arm that slidably contacts the bottom surface of the base of the sheet member. The projecting part automatically engages with the part to lock the open leg state of the main body, and when lowered against the spring built in the cylindrical lever handle pipe, the stepped part and the projecting part are separated. Unlocked That to be able to use those without a mechanism to the unlocked state is maintained by rotating the spring the rotating arm is hung between the cylindrical lever simultaneously.

本発明は上記のごとく構成してなるから、車いすとしての機能に加え、折畳み式であるため狭く限られたスペースの浴室や脱衣場での使用や、収納、保管、携帯、持ち運びにも便利であるのみならず、特に左右一対の跳ね上げ式ひじ掛けをL字形パイプで構成して当該ひじ掛けに体を支えるためのガード機能を持たせたことにより、特に介護を必要とする高齢者や足腰の弱い人、身体の不自由な方でも車いす使用中における車いす前方方向への前屈みや傾倒を防止することが可能となり、介護用車いす使用時の安定性及び安全性がより高められるという優れた効果を奏する。   Since the present invention is configured as described above, in addition to its function as a wheelchair, it is foldable, so it is convenient for use in bathrooms and dressing rooms in a limited space and for storage, storage, carrying and carrying. Not only is there a pair of left and right flip-up armrests, but they are made up of L-shaped pipes, and the armrests have a guard function to support the body, so that elderly people who need nursing care and weakness in their legs and legs are particularly vulnerable Even people with physical disabilities can prevent forward bending or tilting of the wheelchair while using a wheelchair, and the stability and safety when using a wheelchair for nursing care are improved. .

本発明に係る折りたたみ式介護用車いすの一実施例を示す斜視図である。It is a perspective view which shows one Example of the folding-type nursing wheelchair which concerns on this invention. 同上折りたたみ式介護用車いすの側面図である。It is a side view of a folding type wheelchair for nursing care same as the above. 同上折りたたみ式介護用車いすの跳ね上げ式ひじ掛けの取付け部を一部破断して示す拡大側面図である。It is an enlarged side view which partially cuts and shows the attachment part of the flip-up type armrest of a folding type wheelchair for nursing care same as the above. 同上折りたたみ式介護用車いすの跳ね上げ式ひじ掛けの支持部を一部破断して示す拡大側面図である。It is an expanded side view which partially fractures and shows the support part of the flip-up type armrest of the folding type wheelchair for nursing care. 同上折りたたみ式介護用車いすの跳ね上げ式肘掛けの一方を跳ね上げた状態を示す側面図である。It is a side view which shows the state which flipped up one side of the flip-up type armrest of a folding-type nursing wheelchair same as the above. 同上折りたたみ式介護用車いすの本体開脚状態自動ロック機構を示す説明図で、(a)はロック状態を示す側面図、(b)はロック開放状態を示す側面図である。It is explanatory drawing which shows the main body open leg state automatic lock mechanism of a folding-type nursing wheelchair same as the above, (a) is a side view which shows a locked state, (b) is a side view which shows an unlocked state. 同上折りたたみ式介護用車いすを折りたたんだ状態を示す側面図である。It is a side view which shows the state which folded the folding type wheelchair for nursing care same as the above.

図1〜図7において、1はハンドルパイプ、2はリヤーパイプ、3はフロントパイプ、4はステップパイプ、5はシート部材、6は凹形連結部材、7は長尺の連結部材、8は跳ね上げ式ひじ掛け、9は跳ね上げ式ひじ掛け取付け部、10は回動連結部材、11はいす本体開脚状態自動ロック機構、12は前輪キャスター、12−1は前輪、13は後輪車軸、13−1は後輪、14は引張バネ、15はスペーサバーである。   1 to 7, 1 is a handle pipe, 2 is a rear pipe, 3 is a front pipe, 4 is a step pipe, 5 is a seat member, 6 is a concave connection member, 7 is a long connection member, and 8 is a flip-up type Armrest, 9 is a flip-up type armrest mounting portion, 10 is a pivotal connecting member, 11 is a body main body open leg automatic locking mechanism, 12 is a front wheel caster, 12-1 is a front wheel, 13 is a rear wheel axle, and 13-1 is A rear wheel, 14 is a tension spring, and 15 is a spacer bar.

即ち、本発明に係る折りたたみ式介護用車いすの基本的な構成としては、所定の間隔を隔てて相平行する左右一対のハンドルパイプ1、該ハンドルパイプ1にブラケットB1を介して枢軸S1にて上下方向に回動可能に取着された左右一対のシート部材5、ハンドルパイプ1とシート部材5との間に配設され、ハンドルパイプ1側の端部は当該ハンドルパイプの下部に枢軸S2にて上下方向に回動可能に取着された回動連結部材10に、当該回動連結部材10間に横設した後輪車軸13を介して固着され、シート部材5側の端部は当該シート部材にブラケットB2を介して枢軸S3にて上下方向に回動可能に取着された左右一対のリヤーパイプ2、該リヤーパイプ2に一端をブラケットB3を介して枢軸S4にて上下方向に回動可能に取着された左右一対の略L字形のフロントパイプ3、先端部をシート部材5の先端部にブラケットB4を介して枢軸S5にて前後方向に回動可能に取着されたステップパイプ4、さらに左右のステップパイプ4に枢軸S6にて取着されたブラケットB5に両端部を枢軸S7にて上下方向に回動可能に取着されて当該ステップパイプ4を支持する凹形連結部材6とからいす本体の骨格が形成されている。15は左右のフロントパイプ3間に横設したスペーサバーである。   That is, the basic configuration of the folding nursing care wheelchair according to the present invention includes a pair of left and right handle pipes 1 parallel to each other at a predetermined interval, and the handle pipe 1 is vertically moved by a pivot S1 via a bracket B1. A pair of left and right seat members 5, which are attached so as to be pivotable in the direction, are disposed between the handle pipe 1 and the seat member 5, and an end portion on the handle pipe 1 side is disposed at a lower portion of the handle pipe at a pivot S2. The end of the seat member 5 is fixed to the pivot connecting member 10 that is pivotably mounted in the vertical direction via a rear wheel axle 13 that is provided between the pivot connecting members 10. A pair of left and right rear pipes 2 attached to a pivot S3 through a bracket B2 so as to be pivotable in the vertical direction. One end of the rear pipe 2 is pivotally pivoted at a pivot S4 via a bracket B3. Dressed The left and right pair of substantially L-shaped front pipes 3, the step pipe 4 attached to the front end of the seat member 5 via the bracket B4 so as to be pivotable in the front-rear direction, and the left and right step pipes 4 is a bracket B5 attached by a pivot S6 to a bracket B5. Both ends of the bracket B5 are pivotally attached to a pivot S7 so as to be pivotable in the vertical direction. Is formed. A spacer bar 15 is provided between the left and right front pipes 3.

前記ハンドルパイプ1、フロントパイプ3及び凹形連結部材6間には、当該いす本体を前後方向に折りたたむ際にその動きに連動してフロントパイプ3及びステップパイプ4をハンドルパイプ1側に引き寄せ、かついす本体を開脚する際にその動きに連動してフロントパイプ3及びステップパイプ4を前方へ押し出すための作用を行わせる左右一対の長尺の連結部材7が設けられている。この連結部材7の後端はハンドルパイプ1の下部に回動連結部材10と同じ枢軸S2にて上下方向に回動可能に取着され、前端側はフロントパイプ3と凹形連結部材6に枢軸S8、S9にて取着されている。又、前記凹形連結部材6と左右のリヤーパイプ2間に横設した連結棒2−1間には、凹形連結部材6を略水平に保持するための引張バネ14が掛けられている。   Between the handle pipe 1, the front pipe 3 and the concave connecting member 6, when the chair body is folded in the front-rear direction, the front pipe 3 and the step pipe 4 are pulled toward the handle pipe 1 side in conjunction with the movement of the chair body. When the legs are opened, a pair of left and right long connecting members 7 are provided for performing the action of pushing the front pipe 3 and the step pipe 4 forward in conjunction with the movement thereof. The rear end of the connecting member 7 is attached to the lower part of the handle pipe 1 so as to be pivotable in the vertical direction by the same pivot S2 as the pivot coupling member 10, and the front end is pivoted to the front pipe 3 and the concave coupling member 6 to the pivot S8. , Attached at S9. A tension spring 14 for holding the concave connection member 6 substantially horizontally is hung between the concave connection member 6 and the connecting rod 2-1 provided horizontally between the left and right rear pipes 2.

次に、跳ね上げ式ひじ掛け8及びその取付け構造を図3、図4に基づいて説明する。跳ね上げ式ひじ掛け8は、使用者の体を支えるためのガード機能を持たせるため、先端部を略直角に屈曲して形成した左右一対のL字形パイプで構成したもので、その跳ね上げ式ひじ掛け8は、一本のパイプの直線部8−1と、該直線部8−1の先端部を略直角に屈曲して形成した屈曲部8−2とからなり、その付け根部には当該パイプ内部に装着した板バネ8−3にて出没自在に設けた着脱用ピン8−4が取付けられている。一方、ハンドルパイプ1側には、前記直線部8−1の後端部を取着するためのパイプジョイント8−5が、当該パイプジョイントと一体に設けられたブラケットB6を介して枢軸S10にて上下方向に回動可能に取着されている。このパイプジョイント8−5には、前記板バネ8−3にて出没自在に設けられた着脱用ピン8−4が嵌合する所望長さの円弧状溝8−7が形成され、前記着脱用ピン8−4を当該パイプ内に没して当該パイプ後端部をパイプジョイント8−5に差し込んでハンドルパイプ1側にスライドさせると、着脱用ピン8−4が前記円弧状溝8−7に位置したところで前記板バネ8−3により円弧状溝8−7内に突出してジョイントされ、この状態で該ひじ掛け8を前記円弧状溝8−7で規定されるストローク回動させることにより屈曲部8−2を水平及び下向きにできる仕組みとなっている。
又、この跳ね上げ式ひじ掛け8の支持手段としては、該L字形パイプのハンドルパイプ1側付け根部の前記パイプジョイント8−5の着脱用ピン8−4手前側に取着したブラケットB7に上端が枢軸S11にて上下方向に回動可能に取着され、下端がシート部材5の側面のハンドルパイプ1側端部に枢軸S12にて回動可能に取着された接合突起8−9に固着された繰出し式支持パイプ8−8にて支持されるように取付けられている。前記繰出し式支持パイプ8−8は内管8−8aと外管8−8bとからなる二重管で構成され、かつ内管8−8aは外管8−8b内に装着した圧縮コイルバネ8−8cにより常時上方向に付勢されて一定ストローク上下動可能に取付けられ、さらに内管8−8a内に装着した板バネ8−8dに取着されて外管8−8bに穿設された貫通孔より出没可能となすストッパーピン8−8eを、外管8−8bに外嵌して設けたピン押さえ8−8fにて内方に押すと内管8−8aが圧縮コイルバネ8−8cにより繰り出す仕組みとなしている。
Next, the flip-up type armrest 8 and its mounting structure will be described with reference to FIGS. The flip-up armrest 8 is composed of a pair of left and right L-shaped pipes that are formed by bending the tip at a substantially right angle so as to provide a guard function for supporting the user's body. 8 includes a straight portion 8-1 of one pipe and a bent portion 8-2 formed by bending the tip portion of the straight portion 8-1 at a substantially right angle. An attaching / detaching pin 8-4 provided so as to be freely protruded and retracted by a leaf spring 8-3 attached to is attached. On the other hand, on the handle pipe 1 side, a pipe joint 8-5 for attaching the rear end portion of the linear portion 8-1 is connected to the pivot S10 via a bracket B6 provided integrally with the pipe joint. It is attached so that it can rotate in the vertical direction. The pipe joint 8-5 is formed with an arc-shaped groove 8-7 having a desired length into which a detachable pin 8-4 provided so as to be freely retractable by the leaf spring 8-3 is fitted. When the pin 8-4 is submerged in the pipe and the rear end of the pipe is inserted into the pipe joint 8-5 and slid to the handle pipe 1 side, the detachable pin 8-4 is inserted into the arcuate groove 8-7. When positioned, the leaf spring 8-3 protrudes into the arc-shaped groove 8-7 and is jointed. In this state, the armrest 8 is rotated by a stroke defined by the arc-shaped groove 8-7 to thereby bend the bent portion 8. -2 can be horizontal and downward.
Further, as a means for supporting the flip-up type armrest 8, the upper end of the L-shaped pipe is attached to the bracket B7 attached to the front side of the pipe joint 8-5 at the base portion on the handle pipe 1 side of the L-shaped pipe. The lower end of the seat member 5 is fixed to a joint projection 8-9 that is rotatably attached to the handle pipe 1 side end of the side surface of the seat member 5 by the pivot S11. Further, it is attached so as to be supported by a pay-out-type support pipe 8-8. The feed-out support pipe 8-8 is composed of a double pipe comprising an inner pipe 8-8a and an outer pipe 8-8b, and the inner pipe 8-8a is a compression coil spring 8- mounted in the outer pipe 8-8b. 8c is always urged upward by a fixed stroke so that it can move up and down for a fixed stroke, and is further attached to a leaf spring 8-8d mounted in the inner tube 8-8a and penetrated through the outer tube 8-8b. When the stopper pin 8-8e, which can be projected and retracted from the hole, is pushed inward by a pin presser 8-8f provided by being externally fitted to the outer tube 8-8b, the inner tube 8-8a is fed out by the compression coil spring 8-8c. It is structured.

又、いす本体開脚状態自動ロック機構11は、図6に示すごとく、シート部材5のハンドルパイプ1付け根部のブラケットB1に下面に形成した段付き部B1−1と、上面に前記段付き部B1−1に下から係合可能な突起部11−2を有し、前記ハンドルパイプ1に縦方向に穿設された長孔11−4に緩貫通した設けた軸ピン11−3に取付けられ、同ハンドルパイプ1内に設けたバネ座11−5a、11−5b間に嵌装した圧縮コイルバネ11−6により常時上方向に付勢されて前記長孔11−4で規定される一定ストローク上下動するごとく当該ハンドルパイプ1に外嵌された筒形レバー11−1と、該筒形レバー11−1の側面に回動可能に枢着され、かつ該筒形レバー11−1との間に掛けた引張バネ11−7により常に一定方向の回動力を付勢され、その先端部が前記シート部材付け根部下面に摺接する回転アーム11−8とから構成されている。11−9は筒形レバー11−1の側面に設けた突起状の押圧レバーである。   Further, as shown in FIG. 6, the chair main body open leg state automatic lock mechanism 11 includes a stepped portion B1-1 formed on the lower surface of the bracket B1 of the base portion of the handle pipe 1 of the seat member 5, and the stepped portion on the upper surface. B1-1 has a protrusion 11-2 that can be engaged from below, and is attached to a shaft pin 11-3 that is loosely penetrated through a long hole 11-4 formed in the handle pipe 1 in the vertical direction. A constant stroke up and down defined by the long hole 11-4 is always urged upward by a compression coil spring 11-6 fitted between spring seats 11-5a and 11-5b provided in the handle pipe 1. A cylindrical lever 11-1 externally fitted to the handle pipe 1 as it moves, and pivotally mounted on the side surface of the cylindrical lever 11-1, and between the cylindrical lever 11-1. The tension spring 11-7 is always in a certain direction. It is energized power, and a rotary arm 11-8 Metropolitan its tip slides over the sheet member base lower surface. Reference numeral 11-9 denotes a protruding pressing lever provided on the side surface of the cylindrical lever 11-1.

なお、ステップパイプ4の下部には着脱式の一対のステップ4−1がブラケット4−2を介して前後左右に回動可能に取付けられている。   A pair of detachable steps 4-1 are attached to the lower portion of the step pipe 4 via a bracket 4-2 so as to be turnable in the front-rear and left-right directions.

上記構成の折りたたみ式介護用車いすにおいて、開脚した状態にあっては図1、図2に示すように前記凹形連結部材6、フロントパイプ3及びハンドルパイプ1間に前後方向に配置されて前端部を凹形連結部材6及びフロントパイプ3に、後端部をハンドルパイプ1に、それぞれ回動可能に枢着された左右一対の長尺の連結部材7を介して開脚状態が保持される。この時、凹形連結部材6は当該凹形連結部材6と左右のリヤーパイプ2間に横設した連結棒2−1間に掛けられた引張バネ14により略水平に保持されている。   In the folding nursing care wheelchair having the above-described configuration, when the legs are opened, as shown in FIGS. 1 and 2, the front end portion is disposed between the concave connecting member 6, the front pipe 3 and the handle pipe 1 in the front-rear direction. Are connected to the concave connecting member 6 and the front pipe 3, and the rear end portion is held to the handle pipe 1 through a pair of left and right long connecting members 7 pivotably mounted. At this time, the concave connecting member 6 is held substantially horizontally by a tension spring 14 hung between the concave connecting member 6 and the connecting rod 2-1 provided between the left and right rear pipes 2.

開脚した状態で当該車いすに乗り降りする場合は、図5に示すように前記跳ね上げ式ひじ掛け8の繰出し式支持パイプ8−8のピン押さえ8−8fにて内管8−8aを繰り出して跳ね上げ式ひじ掛け8を上方に回動位置させる。開脚した状態で当該車いすを使用する際は、前記跳ね上げ式ひじ掛け8の繰出し式支持パイプ8−8を操作して当該跳ね上げ式ひじ掛け8を下方に回動させて繰出し式支持パイプ8−8にて所定の高さ位置に水平に保持する。この時、跳ね上げ式ひじ掛け8は該ひじ掛け取付け部9を操作してL字形パイプの屈曲部8−2がそれぞれ内側に向いて、使用者の体の背面、左右側面だけでなく前面部もガードする状態となっている。これにより、特に介護を必要とする高齢者や足腰の弱い人、身体の不自由な方でも車いす使用中における車いす前方方向への前屈みや傾倒を防止することが可能となる。   When getting on and off the wheelchair with the legs open, as shown in FIG. 5, the inner pipe 8-8a is pulled out by the pin holder 8-8f of the feed-type support pipe 8-8 of the flip-up armrest 8 and jumped. The raising armrest 8 is pivoted upward. When the wheelchair is used in the state where the legs are open, the pay-out type support pipe 8-8 of the flip-up type armrest 8 is operated to rotate the flip-up type armrest 8 downward to supply the pay-out type support pipe 8- At 8, it is held horizontally at a predetermined height position. At this time, the flip-up type armrest 8 operates the armrest mounting portion 9 so that the bent portions 8-2 of the L-shaped pipe face inward, and guards not only the back and left and right sides of the user's body but also the front portion. It is in a state to do. As a result, it is possible to prevent forward bending or tilting in the forward direction of the wheelchair while the wheelchair is in use, even for an elderly person who needs nursing care, a person with weak legs, or a physically handicapped person.

いす本体を折たたむ場合は、前記本体開脚状態自動ロック機構11の筒形レバー11−1を下げてロックを解除した状態で、ハンドルパイプ1とシート部材5を把持してシート部材5を上方へ回動させることによって、フロントパイプ3及びハンドルパイプ1間に前後方向に配置されて前端部を凹形連結部材6及びフロントパイプ3に、後端部をハンドルパイプ1に、それぞれ回動可能に枢着された左右一対の長尺の連結部材7の作用によりワンタッチ動作でいす本体が前後方向及び上下方向に同時に折りたたまれる。
即ち、いす本体のロック機構を解除した状態でシート部材5を下側から上側に押し上げると回動連結部材10が後方に回動するに伴いリヤーパイプ2が後方に回動し、その回動に連動してフロントパイプ3がリヤーパイプ2側に引っ張られながら折りたたまれていく。この折りたたみ動作に伴い、長尺の連結部材7により凹形連結部材6が引っ張られることによりステップパイプ4も内方へ回動し折りたたまれていく。又この時、跳ね上げ式ひじ掛け8もシート部材5の押し上げ動作に伴い繰出し式支持パイプ8−8を介してハンドルパイプ1側に回動して折りたたまれていく。そして、完全に閉じた状態のいす本体は図7に示すごとく、ハンドルパイプ1、リヤーパイプ2、フロントパイプ3、ステップパイプ4、シート部材5及び凹形連結部材6がほぼ垂直状態に相重なり、さらに跳ね上げ式ひじ掛け8もほぼ垂直状態に回動位置した状態となる。
When the chair main body is folded, the handle pipe 1 and the seat member 5 are gripped and the seat member 5 is moved upward while the lock is released by lowering the cylindrical lever 11-1 of the main body open state automatic lock mechanism 11. Is pivotally mounted between the front pipe 3 and the handle pipe 1 such that the front end is pivotally attached to the concave connecting member 6 and the front pipe 3 and the rear end is pivotally attached to the handle pipe 1. By the action of the pair of left and right elongated connecting members 7, the chair main body is simultaneously folded in the front-rear direction and the vertical direction by a one-touch operation.
That is, when the seat member 5 is pushed upward from the lower side while the lock mechanism of the chair body is released, the rear pipe 2 rotates rearward as the rotary connecting member 10 rotates rearward, and interlocked with the rotation. Then, the front pipe 3 is folded while being pulled toward the rear pipe 2 side. Along with this folding operation, when the concave connecting member 6 is pulled by the long connecting member 7, the step pipe 4 is also turned inward and folded. At this time, the flip-up type armrest 8 is also turned and folded to the handle pipe 1 side via the pay-out type support pipe 8-8 as the seat member 5 is pushed up. As shown in FIG. 7, the chair body in the completely closed state is such that the handle pipe 1, the rear pipe 2, the front pipe 3, the step pipe 4, the seat member 5 and the concave connecting member 6 overlap each other in a substantially vertical state, and further spring. The lifting arm rest 8 is also in a state of being rotated in a substantially vertical state.

折りたたんだ状態にある車いすを使用する場合は、折りたたみ時と逆の動作、即ち、ハンドルパイプ1及びシート部材5を前後方向に開くことによって、リヤーパイプ2、フロントパイプ3及び長尺の連結部材7の作用によりいす本体が前後方向及び上下方向に開脚するとともに、この開脚動作に伴い跳ね上げ式ひじ掛け8も前方に回動し、所定の高さ位置に水平に保持される。   When the wheelchair in the folded state is used, the operation of the rear pipe 2, the front pipe 3, and the long connecting member 7 is performed by opening the handle pipe 1 and the seat member 5 in the front-rear direction. As a result, the chair body is opened in the front-rear direction and the up-down direction, and the flip-up armrest 8 is also rotated forward by the opening operation and held horizontally at a predetermined height position.

1 ハンドルパイプ
2 リヤーパイプ
2−1 連結棒
3 フロントパイプ
4 ステップパイプ
4−1 ステップ
4−2 ブラケット
5 シート部材
6 凹形連結部材
7 長尺の連結部材
8 跳ね上げ式ひじ掛け
8−1 パイプの直線部
8−2 パイプの屈曲部
8−3、8−8d 板バネ
8−4 着脱用ピン
8−5 パイプジョイント
8−7 円弧状溝
8−8 繰出し式支持パイプ
8−8a 内管
8−8b 外管
8−8c、11−6 圧縮コイルバネ
8−8e ストッパーピン
8−8f ピン押さえ
8−9 接合突起
9 跳ね上げ式ひじ掛け取付け部
10 回動連結部材
11 いす本体開脚状態自動ロック機構
11−1 筒形レバー
11−2 突起部
11−3 軸ピン
11−4 長孔
11−5、11−5a、11−5b バネ座
11−7、14 引張バネ
11−8 回転アーム
11−9 押圧レバー
12 前輪キャスター
12−1 前輪
13 後輪車軸
13−1 後輪
15 スペーサバー
B1〜B7 ブラケット
B1−1 段付き部
S1〜S12 枢軸
DESCRIPTION OF SYMBOLS 1 Handle pipe 2 Rear pipe 2-1 Connecting rod 3 Front pipe 4 Step pipe 4-1 Step 4-2 Bracket 5 Sheet member 6 Concave connecting member 7 Long connecting member 8 Lifting type armrest 8-1 Pipe straight part 8 -2 Bending part of pipe 8-3, 8-8d Leaf spring 8-4 Removable pin 8-5 Pipe joint 8-7 Arc-shaped groove 8-8 Feeding type support pipe 8-8a Inner pipe 8-8b Outer pipe 8 -8c, 11-6 Compression coil spring 8-8e Stopper pin 8-8f Pin retainer 8-9 Joint projection 9 Lifting type armrest mounting part 10 Rotating connecting member 11 Chair body open leg automatic locking mechanism 11-1 Cylindrical lever 11-2 Protruding portion 11-3 Axle pin 11-4 Long hole 11-5, 11-5a, 11-5b Spring seat 11-7, 14 Tension spring 11-8 Rotating arm 11-9 Press lever 12 Front wheel caster 12-1 Front wheel 13 Rear wheel axle 13-1 Rear wheel 15 Spacer bar B1-B7 Bracket B1-1 Stepped part S1-S12 Axis

Claims (1)

所定の間隔を隔てて相平行する一対のハンドルパイプに座面を形成するための一対のシート部材が上下方向に回動可能に枢着され、該シート部材の下方において、シート部材にリヤーパイプの上端が前後方向に回動可能に枢着され、さらにリヤーパイプの上部に略L字形のフロントパイプの上端が上下方向に回動可能に枢着され、ステップパイプ間において当該ステップパイプに凹形連結部材の左右両端部が上下方向に回動可能に枢着されて連結され、かつ前記凹形連結部材、フロントパイプ及びハンドルパイプ間に前後方向に配置されて前端部を凹形連結部材及びフロントパイプに、後端部をハンドルパイプに、それぞれ回動可能に枢着された左右一対の長尺の連結部材を介してハンドルパイプとステップパイプが前後方向に開閉可能となすとともに、左右のリヤーパイプ間に横設した連結棒と前記凹形連結部材間には凹形連結部材を略水平に保持するための引張バネが掛けられ、本体のハンドルパイプとシート部材を把持し、シート部材を上方向に回動させることにより、ハンドルパイプ、フロントパイプ及び凹形連結部材とを前後方向につなぐ前記長尺の連結部材の作用により当該本体が同時に前後方向及び上下方向に折りたたまれる構造となし、左右のハンドルパイプ部に本体開脚状態自動ロック機構を備えた折りたたみ式介護用車いすであって、ハンドルパイプに一端がパイプジョイント方式により上下方向に回動自在にかつ着脱可能に取着され、シート部材に下端が回動可能に取着されかつ内蔵されたバネにより常時上方向に付勢されて一定ストローク上下動可能な二重管構造の繰出し式支持パイプを介して支持され、いす本体と連動して折りたたまれるごとく設けた、先端部が略直角に屈曲した左右一対のL字形パイプからなる跳ね上げ式ひじ掛けを備えたことを特徴とする折りたたみ式介護用車いす。   A pair of seat members for forming a seating surface is pivotally attached to a pair of handle pipes parallel to each other at a predetermined interval so as to be pivotable in the vertical direction, and below the seat member, the upper end of the rear pipe is attached to the seat member. The upper end of a substantially L-shaped front pipe is pivotally mounted on the upper part of the rear pipe so as to be pivotable in the vertical direction, and the left and right of the concave connecting member are connected to the step pipe between the step pipes. Both end portions are pivotally connected to be pivotable in the vertical direction, and are arranged in the front-rear direction between the concave connection member, the front pipe and the handle pipe, and the front end portion is connected to the concave connection member and the front pipe, and the rear end portion. The handle pipe and step pipe can be opened and closed in the front-rear direction via a pair of left and right long connecting members pivotally attached to the handle pipe. In addition, a tension spring for holding the concave connecting member substantially horizontally is hung between the connecting rod horizontally provided between the left and right rear pipes and the concave connecting member, and grips the handle pipe and the seat member of the main body, A structure in which the main body is simultaneously folded in the front-rear direction and the up-down direction by the action of the long connection member that connects the handle pipe, the front pipe, and the concave connection member in the front-rear direction by rotating the seat member upward. None, a folding nursing wheelchair with left and right handle pipes with automatic open-leg lock mechanism, one end of which is attached to the handle pipe so that it can be pivoted vertically and detachable by a pipe joint system The lower end of the seat member is pivotably mounted and is always urged upward by a built-in spring so that it can move up and down a certain stroke. A flip-up type armrest comprising a pair of left and right L-shaped pipes that are supported via a pipe-type payout-type support pipe and folded in conjunction with the chair main body and whose distal end portion is bent at a substantially right angle. Features a folding nursing wheelchair for nursing care.
JP2016204069A 2016-10-18 2016-10-18 Folding nursing wheelchair Active JP6202769B1 (en)

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Publication number Priority date Publication date Assignee Title
CN208989415U (en) * 2017-08-18 2019-06-18 康动健康管理(深圳)有限公司 Folding and self-locking structure and folding and self-locking frame and fully collapsible invalid's chair

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305112A (en) * 1991-07-18 1993-11-19 Uchie Kk Reclining type wheel chair
JPH06428U (en) * 1992-06-18 1994-01-11 日進医療器株式会社 Sitting wheelchair
JP2004090757A (en) * 2002-08-30 2004-03-25 Satsuki:Kk Foldable barrow

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05305112A (en) * 1991-07-18 1993-11-19 Uchie Kk Reclining type wheel chair
JPH06428U (en) * 1992-06-18 1994-01-11 日進医療器株式会社 Sitting wheelchair
JP2004090757A (en) * 2002-08-30 2004-03-25 Satsuki:Kk Foldable barrow

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