JP2015037463A

JP2015037463A - Level difference eliminating lift

Info

Publication number: JP2015037463A
Application number: JP2013024364A
Authority: JP
Inventors: 文栄小林; Fumiyoshi Kobayashi
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-12
Filing date: 2013-02-12
Publication date: 2015-02-26

Abstract

PROBLEM TO BE SOLVED: To provide a level difference eliminating lift that makes it possible to cross over a level difference part such as an external staircase, etc.SOLUTION: A level difference eliminating lift comprises: a wheel base 1 for placing a wheel chair 21; and elevation means that vertically moves the wheel base 1 up and down, and the lift enables the wheel chair 21 to move by eliminating a level difference part 20 having multiple level differences or an inclined surface between a highest surface and a lowest surface. The lift is provided with: a pair of guide rails 10 that guide the horizontal movement of the wheel base 1 at the same level as the highest surface of the level difference part 20; a pair of sliders 12 that moves horizontally in the respective guide rails 10; and connection means 18 and 19 that connect the respective sliders 12 with the wheel base 1. The lift eliminates: a vertical interval X between the lowest surface and the highest surface of the level difference part 20 by the elevation of the wheel base 1 by the elevation means; and a horizontal interval Y between the lowest surface and the highest surface of the level difference part 20 by the horizontal movement of the wheel base 1 by the guide rails 10 and the sliders 12.

Description

本発明は、一般住宅や介護施設などでは、玄関前，入口付近に外階段などの段差部（障害物）が随所に存在しているので、これらの段差部を乗り越えて、車椅子使用者が最下位面の地面から段差部の最上位面或いは段差部の最上位面から最下位面の地面に昇降できる段差解消用リフトに関する。 In the present invention, there are stepped parts (obstacles) such as outer stairs in front of the entrance and near the entrance in general houses and nursing homes. The present invention relates to a step-relief lift that can move up and down from the lower surface to the uppermost surface of the stepped portion or from the uppermost surface of the stepped portion to the ground of the lowermost surface.

この種従来の段差解消用リフトは、下記の特許文献１に示すように、上記段差部がある玄関前や入口付近に設置されるもので、車椅子を乗せる車輪台と、油圧式シリンダーを使用して該車輪台を垂直に昇降させる昇降手段とを備え、上記車輪台の内部に渡し板を出没可能に収納して、車輪台が段差部の最上位面まで上昇した時には、該渡し板の先端部を車輪台の内部から引き出し、車輪台と段差部との隙間を繋ぐように、例えば、外階段の最上位面に懸架して、車椅子をこの渡し板を通過させることにより、外階段などの段差部を乗り越えることができる構成となっている。 As shown in Patent Document 1 below, this type of conventional level difference lift is installed in front of the entrance or near the entrance where the level difference portion is located, and uses a wheel base on which a wheelchair is placed and a hydraulic cylinder. Lifting and lowering means for vertically moving the wheel platform, and storing the transfer plate in the wheel platform so as to be able to appear and retract, and when the wheel platform is raised to the uppermost surface of the stepped portion, the tip of the transfer plate Pull out the part from the inside of the wheel base and connect the gap between the wheel base and the stepped part, for example, by hanging on the top surface of the outer staircase and passing the wheelchair through this transfer board, It is configured to be able to get over the step.

従って、特許文献１の段差解消用リフトは、最下位面まで下降している車輪台に車椅子を乗り込ませて、上記昇降手段で段差部の最上位面まで上昇させた後、車輪台の内部から渡し板を引き出して、該渡し板の先端部を段差部の最上位面に懸架すれば、該渡し板を通過して、車椅子を車輪台から段差部の最上位面まで移動させることができるので、これにより、外階段などの段差部を乗り越えて上記した玄関や入口などに到達できる。 Therefore, the lift for level difference cancellation of Patent Document 1 places the wheelchair on the wheel base that has been lowered to the lowest level surface, lifts it to the highest level surface of the step portion by the lifting means, and then from the inside of the wheel base. By pulling out the transfer plate and suspending the tip of the transfer plate on the uppermost surface of the stepped portion, the wheelchair can be moved from the wheel base to the uppermost surface of the stepped portion through the transfer plate. As a result, it is possible to get over the steps, such as the outer staircase, to reach the entrance and entrance described above.

又、車椅子を段差部の最下位面まで下降させる場合には、この懸架されている渡し板を通過して、車椅子を最上位面まで上昇している車輪台に再度乗り込ませた後、渡し板を車輪台の内部に収納して、車輪台を段差部の最下位面まで下降させれば、この場合も、これにより、外階段などの段差部を乗り越えて最下位面の地面側に降りられる。 In addition, when lowering the wheelchair to the lowermost surface of the stepped portion, after passing the suspended transfer plate and re-entering the wheelchair rising to the uppermost surface, the transfer plate Can be stored inside the wheel base and the wheel base can be lowered to the lowest level surface of the stepped portion. .

特開２００７−３０１２３４号公報JP 2007-301234 A

従って、この特許文献１の段差解消用リフトの下では、外階段などの段差部を解消するために、横方向に伸長する渡し板の存在が必要不可欠となるが、この為には、当該渡し板を車輪台の内部から出没させる大掛かりな出没駆動機構が必要となるので、特に、車輪台自体が大型化・複雑化して、段差解消用リフトの価格が徒に高騰する嫌いがあった。
この為、車椅子使用者は段差解消用リフトに関心を示しても価格が高額であるために、設置を躊躇する場合が多く、中々普及には至っていない。 Accordingly, in order to eliminate the stepped portion such as the outer staircase under the step eliminating lift described in Patent Document 1, the presence of a transfer plate extending in the lateral direction is indispensable. Since a large-scale drive mechanism that allows the plate to move in and out from the inside of the wheel base is required, the wheel base itself is particularly large and complicated, and the price of the step-resolving lift has increased.
For this reason, even if a wheelchair user shows interest in a lift for eliminating a level difference, the price is high.

本発明は、斯かる従来の段差解消用リフトが抱える課題を有効に解決するために開発されたもので、車椅子を乗せる車輪台と、該車輪台を垂直に昇降させる昇降手段とを備え、最下位面と最上位面間に複数段差又は傾斜面を有する段差部を解消して車椅子の移動を可能とする段差解消用リフトであって、上記段差部の最上位面と同レベルでの車輪台の横行を案内する一対のガイドレールと、該各ガイドレール内を横行する一対のスライダーと、該各スライダーと車輪台を連繋する連繋手段とを設け、上記昇降手段による車輪台の昇降で上記段差部の最下位面と最上位面間の垂直間隔を解消すると共に、上記ガイドレール及びスライダーによる車輪台の横行で上記段差部の最下位面と最上位面間の水平間隔を解消する構成としたことを特徴とする。 The present invention was developed in order to effectively solve the problems of the conventional lift for eliminating a level difference, and includes a wheel base on which a wheelchair is placed, and a lifting means for vertically moving the wheel base. A lift for level difference elimination that eliminates a level difference portion having a plurality of steps or inclined surfaces between a lower level surface and a top level surface and enables movement of a wheelchair, and a wheel platform at the same level as the top level surface of the level difference portion Provided with a pair of guide rails for guiding the traversing of the rails, a pair of sliders traversing the guide rails, and a connecting means for connecting the sliders and the wheel base, and the step difference by the lifting and lowering of the wheel base by the lifting means. The vertical interval between the lowest level surface and the highest level surface of the part is eliminated, and the horizontal interval between the lowest level surface and the highest level surface of the stepped part is eliminated by traversing the wheel base by the guide rail and the slider. It is characterized by .

好ましくは、上記昇降手段は、車輪台の上下左右に設けられたローラに架け渡されるベルトを使用し、該ベルトの上部一端を固定端となし、同上部他端を巻取ローラで巻き取られる巻取端となして、該昇降手段をスライダーと一緒に横行させる。 Preferably, the elevating means uses a belt spanned by rollers provided on the top, bottom, left and right of the wheel base, the upper end of the belt is used as a fixed end, and the other end of the upper portion is wound up by a take-up roller. As the winding end, the elevating means is traversed together with the slider.

又、上記各スライダーを対応するガイドレールに沿って横行させる横行駆動機構を有する。 Further, a traverse drive mechanism for traversing the sliders along the corresponding guide rail is provided.

この横行駆動機構は、少なくとも一方のスライダーに設けられるラックギアと、該ラックギアと咬合するピニオンギアと、該ピニオンギアを正逆回転させる横行用モータとから成り、スライダーが上記ラックギアと一体に横行する。 The traverse drive mechanism includes a rack gear provided on at least one slider, a pinion gear meshing with the rack gear, and a traverse motor for rotating the pinion gear forward and reverse, and the slider traverses the rack gear integrally.

又、上記各スライダーの対向する内面に縦形凸部又は縦形凹部を設け、上記車輪台の各スライダーと対面する外面に縦形凹部又は縦形凸部を設け、該スライダーの凹凸部と車輪台の凹凸部を連繋させて、車輪台の昇降時における垂直ガイド機能と横行時における水平ガイド機能を得る。 In addition, a vertical convex part or a vertical concave part is provided on the inner surface facing each slider, and a vertical concave part or a vertical convex part is provided on the outer surface facing each slider of the wheel base. Are connected to obtain a vertical guide function when the wheel head is raised and lowered and a horizontal guide function when traversing.

依って、本発明にあっては、上記特許文献１のように、外階段などの段差部の最上位面に懸架される渡し板をその出没駆動機構を含めて車輪台に内蔵して、該渡し板を車輪台に対して出没させる構造を採用せずに、段差部の最上位面と同レベルでの車輪台の横行を案内する一対のガイドレールと、該各ガイドレール内を横行する一対のスライダーと、該各スライダーと車輪台を連繋する連繋手段とを設け、昇降手段による車輪台の昇降で上記段差部の最下位面と最上位面間の垂直間隔を解消すると共に、ガイドレール及びスライダーによる車輪台の横行で上記段差部の最下位面と最上位面間の水平間隔を解消することにより、外階段などの段差部を有効に乗り越えることが可能となる。 Therefore, in the present invention, as in the above-mentioned Patent Document 1, a transfer plate suspended on the uppermost surface of a stepped portion such as an outer staircase is built in a wheel base including its retracting drive mechanism, A pair of guide rails for guiding the traverse of the wheel platform at the same level as the uppermost surface of the stepped portion without adopting a structure in which the transfer plate is projected and retracted with respect to the wheel platform, and a pair of traversing each guide rail And a connecting means for connecting the sliders and the wheel base, and by lifting and lowering the wheel base by the lifting means, the vertical distance between the lowermost surface and the uppermost surface of the stepped portion is eliminated, and a guide rail and By eliminating the horizontal distance between the lowermost surface and the uppermost surface of the stepped portion by traversing the wheel base by the slider, it is possible to effectively get over the stepped portion such as the outer staircase.

この為、特許文献１のものと比較すると、リフト自体の構造が簡素化されて、価格を低減できるので、車椅子使用者の経済的な負担を低減し、段差解消用リフトの普及に大きく貢献できる。 For this reason, compared with the thing of patent document 1, since the structure of lift itself is simplified and a price can be reduced, the economical burden of a wheelchair user can be reduced and it can contribute greatly to the spread of the lift for level | step difference elimination. .

実施例の段差解消用リフトに使用される平ベルト式の昇降手段を示す概略図である。It is the schematic which shows the flat belt type raising / lowering means used for the lift for level | step difference elimination of an Example. 平ベルトの巻取端を巻取ローラに固定する構造を示す要部断面図である。It is principal part sectional drawing which shows the structure which fixes the winding end of a flat belt to a winding roller. 外階段などの段差部に一対のガイドレールを間隔をおいて懸架した状態を示す概略図である。It is the schematic which shows the state which suspended a pair of guide rails at intervals, such as an outer staircase. 最下位に下降した車輪台に車椅子使用者が乗り込んだ状態を一部断面して示す側面図である。It is a side view which shows the state where the wheelchair user got in the wheel stand which descended to the lowest part, and shows a section. 一部断面して示す同背面図である。It is the same rear view shown with a partial cross section. 最下位の車輪台が車椅子使用者を乗せたまま最上位まで上昇した状態を一部断面して示す側面図である。It is a side view which partially shows the state where the lowest wheel stand rose to the highest position with a wheelchair user on it. 一部断面して示す同背面図である。It is the same rear view shown with a partial cross section. ガイドレールに沿って最上位の車輪台が段差部方向に横行した状態を一部断面して示す側面図である。It is a side view which shows in a partial cross section the state where the uppermost wheel base has traversed in the direction of the step portion along the guide rail. スライダーとその関連構造を一部断面して示す要部拡大説明図である。It is principal part expansion explanatory drawing which shows a partial cross section of a slider and its related structure.

以下、本発明に係る段差解消用リフトの好適な実施例を図１乃至図９に基づいて詳述する。 Hereinafter, a preferred embodiment of a lift for level difference elimination according to the present invention will be described in detail with reference to FIGS.

本実施例の段差解消用リフトも、外階段などの段差部２０がある玄関前や入口付近の地面に設置されるもので、車椅子２１を乗せる車輪台１と該車輪台１を垂直に昇降させる昇降手段とを備えるものであるが、本実施例では、上記昇降手段に従来のような油圧式シリンダーを使用せずに、巻取式の平ベルト２を使用して、滑車の原理を利用することにより、該平ベルト２の巻取動力を大幅に軽減すると同時に上記車輪台１のスムーズな昇降を保障するものである。尚、段差部２０については、玄関前や入口付近に存する外階段のみに限定されるものではなく、最下位面と最上位面間にその他の複数段差又は傾斜面を有するものも含む。 The lift for level difference elimination of this embodiment is also installed in front of the entrance where there is a stepped portion 20 such as an outer staircase or on the ground near the entrance, and the wheel base 1 on which the wheelchair 21 is placed and the wheel base 1 are moved up and down vertically. In the present embodiment, the principle of the pulley is used by using the take-up type flat belt 2 without using a conventional hydraulic cylinder for the lifting means. As a result, the winding power of the flat belt 2 is greatly reduced, and at the same time, the wheel base 1 is smoothly raised and lowered. In addition, about the level | step-difference part 20, it is not limited only to the outer staircase which exists in front of an entrance or the entrance vicinity, The thing which has another several level | step difference or an inclined surface between the lowest level surface and the highest level surface is also included.

これを詳述すると、図１に示すように、上記の平ベルト２を２本使用して、車輪台１の上下左右に設けられた案内ローラ３・４・５に架け渡されて後述する一対のスライダー１２と一緒に横行するものであるが、その２本の上端の内、一方の上端を案内ローラ４で案内される固定端２ａとなし、他方の上端を巻取ローラ５に巻き取られる巻取端２ｂとなして、昇降用モータ６の正逆回転を得て、該各巻取端２ｂを連結シャフト７で連結された巻取ローラ５に巻き取るか或いは巻き取りを解除することにより、車輪台１を垂直に昇降させる得る構成となっている。
従って、昇降時の平ベルト２に加わる負荷は、滑車の原理により、総重量（障害者の体重＋車椅子の重量＋車輪台１の重量）の１／２となり、昇降用モータ６の負荷を軽減できる。 More specifically, as shown in FIG. 1, a pair of flat belts 2 described above are used, and are paired as described later by being bridged between guide rollers 3, 4 and 5 provided on the top, bottom, left and right of the wheel base 1. Of the two upper ends, one of the upper ends thereof is formed as a fixed end 2 a guided by the guide roller 4, and the other upper end is wound around the winding roller 5. By obtaining forward and reverse rotations of the lifting motor 6 as the winding end 2b, each winding end 2b is wound around the winding roller 5 connected by the connecting shaft 7, or the winding is released. The wheel base 1 can be vertically moved up and down.
Therefore, the load applied to the flat belt 2 at the time of raising / lowering is ½ of the total weight (weight of the disabled person + weight of the wheelchair + weight of the wheel base 1) according to the principle of the pulley, and the load on the raising / lowering motor 6 is reduced. it can.

尚、上記各巻取ローラ５に平ベルト２の巻取端２ｂを固定する場合には、図２に示すように、当該巻取ローラ５に平ベルト２の巻取端２ｂを複数のボルト８で固定し、その間にバー９を取り付け、平ベルト２の外周を再度押え込むようにして、全てのバー９を２〜３回転程度巻取ローラ５に巻き付け、最後に、上記連結シャフト７に対して平ベルト２の張り具合を確認して固定する。 When the winding end 2b of the flat belt 2 is fixed to each winding roller 5, the winding end 2b of the flat belt 2 is fixed to the winding roller 5 with a plurality of bolts 8 as shown in FIG. The bar 9 is fixed between them, the outer periphery of the flat belt 2 is pressed again, and all the bars 9 are wound around the take-up roller 5 for about 2 to 3 rotations. Check the tension of 2 and fix.

これに加えて、図３に示すように、外階段などの段差部２０の最上位面側に断面コ字形状を呈する一対の長尺なガイドレール１０を一定の間隔をおいて水平に固定し、該一対のガイドレール１０の間に上記車輪台１を昇降可能且つ横行可能に支持する。尚、該ガイドレール１０の固定に際しては、段差部２０前の設置地面に立設されるアジャスターボルト１３付の架台１１を使用して固定するが、その先端部（段差部２０）側は外階段面を利用して同外階段面に載置して上記架台１１との間に水平に懸架しても良い。 In addition to this, as shown in FIG. 3, a pair of long guide rails 10 having a U-shaped cross section are fixed horizontally at a certain interval on the uppermost surface side of the stepped portion 20 such as an outer staircase. The wheel base 1 is supported between the pair of guide rails 10 so as to be capable of moving up and down and traversing. When the guide rail 10 is fixed, the guide rail 10 is fixed by using the mount 11 with the adjuster bolt 13 erected on the installation ground in front of the stepped portion 20, but the tip (stepped portion 20) side is the outer staircase. It may be placed on the same staircase surface using a surface and suspended horizontally between the frame 11.

又、上記各ガイドレール１０の内部に車輪台１と一緒に横行する一対のスライダー１２を設け、車輪台１が上記平ベルト２の昇降手段で段差部２０の最上位面まで上昇した場合には、後述する横行駆動機構を介して、ガイドレール１０及びスライダー１２の案内で、車輪台１を段差部２０の最上位面と同レベルをもって該段差部２０方向へ強制的に横行させ、車椅子２１の車輪台１から段差部２０の最上位面への移動を許容する。 Further, when a pair of sliders 12 traversing together with the wheel base 1 is provided inside each guide rail 10, and the wheel base 1 is raised to the uppermost surface of the stepped portion 20 by the elevating means of the flat belt 2. The wheelchair 1 is forcibly traversed in the direction of the stepped portion 20 with the same level as the uppermost surface of the stepped portion 20 by the guide rail 10 and the slider 12 through a traverse drive mechanism described later. The movement from the wheel base 1 to the uppermost surface of the stepped portion 20 is allowed.

一対のガイドレール１０内を横行する各スライダー１２の内部には、図５・図９に示すように、上記平ベルト２の巻取ローラ５と昇降用モータ６に加えて平ベルト２の固定端２ａを配置し、該昇降用モータ６の正逆回転により、車輪台１のみをガイドレール１０やスライダー１２とは無関係に昇降させる。 In each slider 12 traversing the pair of guide rails 10, there are fixed ends of the flat belt 2 in addition to the winding roller 5 and the lifting motor 6 of the flat belt 2, as shown in FIGS. 5 and 9. 2a is disposed, and only the wheel base 1 is moved up and down independently of the guide rail 10 and the slider 12 by forward and reverse rotation of the lifting motor 6.

又、上記スライダー１２の下面には、図９にも示すように、上記横行駆動機構を構成するラックギア１４を設けると共に、図４に示すように、上記架台１１に横行駆動機構を構成する横行用モータ１５を該ラックギア１４と対応して固設して、該横行用モータ１５のピニオンギア１６を上記ラックギア１４に咬合させ、ピニオンギア１６の回転で各スライダー１２を対応するガイドレール１０内を正逆方向に横行させる。尚、図中１７はスライダー１２のガイドレール１０内の横行を案内するガイドローラである。又、この横行駆動機構は一対のスライダー１２に対して個々に設けずに、少なくとも、一方のスライダー１２に対してのみ設けても、その機能は十分に得られると共に、コストもより安価となる。 Further, as shown in FIG. 9, a rack gear 14 constituting the traverse drive mechanism is provided on the lower surface of the slider 12, and as shown in FIG. 4, the traverse drive mechanism constituting the traverse drive mechanism on the gantry 11 is provided. A motor 15 is fixed in correspondence with the rack gear 14, the pinion gear 16 of the traversing motor 15 is engaged with the rack gear 14, and the rotation of the pinion gear 16 causes each slider 12 to move in the corresponding guide rail 10. Traverse in the opposite direction. In the figure, reference numeral 17 denotes a guide roller for guiding the traverse of the slider 12 in the guide rail 10. Further, even if this traverse drive mechanism is not provided for each of the pair of sliders 12 but is provided only for at least one of the sliders 12, the function can be sufficiently obtained and the cost can be reduced.

図３・図９に示すように、上記各スライダー１２の対向する内面中央部に連繋手段たる縦形のガイド凸部１８を設け、車輪台１の側壁を形成するエプロン１ａの外面に連繋手段たる縦形の長いガイド凹部１９を設け、上記スライダー１２のガイド凸部１８をエプロン１ａの長いガイド凹部１９に噛み合わせ状態をもって連繋することにより、車輪台１の昇降時における垂直ガイド機能と横行時における水平ガイド機能とを得る構成となっている。尚、ガイド凸部１８をエプロン１ａ側に、ガイド凹部１９をスライダー１２側に設けても良い。又、車輪台１の両側壁を形成するエプロン１ａは、同車輪台１の左右側部に固定されて一体に連動するものである。 As shown in FIG. 3 and FIG. 9, a vertical guide convex portion 18 serving as a connecting means is provided at the center portion of the inner surface of each slider 12 facing each other, and a vertical shape serving as a connecting means to the outer surface of the apron 1 a forming the side wall of the wheel base 1. A long guide recess 19 is provided, and the guide protrusion 18 of the slider 12 is connected to the long guide recess 19 of the apron 1a in a meshed state so that the vertical guide function when the wheel head 1 is raised and lowered and the horizontal guide when it is traversing. It is the structure which obtains a function. The guide convex portion 18 may be provided on the apron 1a side and the guide concave portion 19 may be provided on the slider 12 side. Moreover, the apron 1a which forms the both side walls of the wheel base 1 is fixed to the left and right side portions of the wheel base 1 and interlocks integrally.

依って、例えば、一般住宅の玄関前や介護施設の入口付近に存在する外階段などの段差部２０手前の地面に上記構成の段差解消用リフトを複数の架台１１を介して固定すれば、その使用に供されることとなるが、車椅子使用者が段差部２０を乗り越えて上記玄関や入口へ移動する場合には、図４・図５に示すように、車椅子使用者は上記昇降手段で設置地面（最下位面）まで下降している車輪台１上に車椅子２１ごと乗り込み、この状態で、昇降用モータ６を作動させると、上記巻取ローラ５が回転して各平ベルト２を巻き上げるので、これにより、図６・図７に示すように、車輪台１は車椅子使用者を乗せたままリミットスイッチで検出された最上位面まで垂直に上昇して停止する。言い換えれば、昇降手段による車輪台１の上昇で、段差部２０の最下位面と最上位面間の垂直間隔Ｘを有効に解消できる。 Therefore, for example, if the level difference lifting lift of the above configuration is fixed to the ground in front of the stepped portion 20 such as an outer staircase existing in front of the entrance of a general house or near the entrance of a nursing facility via a plurality of mounts 11, When the wheelchair user goes over the stepped portion 20 and moves to the entrance or entrance, the wheelchair user installs it using the lifting means as shown in FIGS. When the wheelchair 21 is put on the wheelchair 1 descending to the ground (the lowermost surface) and the elevating motor 6 is operated in this state, the winding roller 5 rotates to wind up each flat belt 2. As a result, as shown in FIGS. 6 and 7, the wheel base 1 moves vertically up to the uppermost surface detected by the limit switch and stops with the wheelchair user placed. In other words, the vertical distance X between the lowermost surface and the uppermost surface of the stepped portion 20 can be effectively eliminated by raising the wheel base 1 by the lifting means.

尚、この時は、上記したスライダー１２側のガイド凸部１８が車輪台１のエプロン１ａ側のガイド凹部１９内を摺動して、垂直ガイド機能を発揮するので、車輪台１は垂直状態を維持したままスムーズに上昇する。 At this time, the guide projection 18 on the slider 12 side slides in the guide recess 19 on the apron 1a side of the wheel base 1 and exhibits a vertical guide function. Ascends smoothly while maintaining.

そこで、今度は、上記横行用モータ１５を作動させて、ラックギア１４と咬合している横行用モータ１５のピニオンギア１６を回転すると、図８に示すように、各スライダー１２が車輪台１と一緒に対応するガイドレール１０に沿って段差部２０の最上位方向へ水平状態を維持して横行して、リミットスイッチで検出された検出位置に停止するので、車椅子使用者は車輪台１から降りて上記玄関や入口に車椅子２１ごと移動することが可能となり、外階段などの段差部２０を容易に乗り越えられる。言い換えれば、ガイドレール１０及びスライダー１２による車輪台１の段差部２０方向への横行で段差部２０の最下位面と最上位面間の水平間隔Ｙを有効に解消できる。 Therefore, this time, when the traversing motor 15 is operated and the pinion gear 16 of the traversing motor 15 meshed with the rack gear 14 is rotated, each slider 12 is brought together with the wheel base 1 as shown in FIG. As the wheelchair user gets off the wheel base 1, the vehicle keeps moving horizontally along the guide rail 10 corresponding to the uppermost direction of the stepped portion 20 and stops at the detection position detected by the limit switch. It is possible to move the wheelchair 21 together with the entrance and the entrance, and can easily get over the stepped portion 20 such as the outer staircase. In other words, the horizontal interval Y between the lowermost surface and the uppermost surface of the stepped portion 20 can be effectively eliminated by traversing in the direction of the stepped portion 20 of the wheel base 1 by the guide rail 10 and the slider 12.

尚、この時は、上記したスライダー１２側のガイド凸部１８が車輪台１のエプロン１ａ側のガイド凹部１９の側面を押圧して、水平ガイド機能を発揮するので、車輪台１はスライダー１２・昇降手段と一緒に水平状態を維持したまま一対のガイドレール１０間を横行できると共に、上記ガイドローラ１７が対応するガイドレール１０の下面に沿って滑動するので、スムーズな横行動も保障できる。 At this time, the guide projection 18 on the slider 12 side presses the side surface of the guide recess 19 on the apron 1a side of the wheel base 1 to exert a horizontal guide function. While maintaining a horizontal state together with the elevating means, the pair of guide rails 10 can be traversed, and the guide roller 17 slides along the lower surface of the corresponding guide rail 10, so that a smooth lateral behavior can be ensured.

そして、車椅子使用者が車輪台１から降りたら、再度、横行用モータ１５を作動させてピニオンギア１６を逆回転させると、各スライダー１２が車輪台１・昇降手段と一緒にガイドレール１０に沿って段差部２０とは逆方向に横行するので、後は、上記昇降手段を介して車輪台１を段差部２０の最下位面まで下降させれば、設置地面上に下降した車輪台１が邪魔とならないので、この車輪台１を踏み越えながら、健常者は一対のガイドレール１０間を普通に通り抜けられる。 When the wheelchair user gets off the wheel base 1, the traversing motor 15 is operated again to reversely rotate the pinion gear 16, and each slider 12 moves along the guide rail 10 together with the wheel base 1 and the lifting means. Therefore, if the wheel base 1 is lowered to the lowermost surface of the step portion 20 through the lifting means, the wheel base 1 lowered on the installation ground is obstructive. Therefore, a healthy person can normally pass between the pair of guide rails 10 while stepping over the wheel base 1.

逆に、玄関や入口から段差部２０を乗り越えて設置地面（最下位面）側へ移動する場合には、下降している車輪台１を上記と同様に上昇させると同時に段差部２０方向に横行させれば、車椅子使用者は昇降手段で最上位面まで上昇している車輪台１上に車椅子２１ごと乗り込むことが可能となるので、横行用モータ１５を作動させて、ピニオンギア１６の逆回転で、各スライダー１２を車輪台１・昇降手段と一緒に対応するガイドレール１０に沿って段差部２０とは逆方向に横行させれば、各スライダー１２がリミットスイッチで検出された検出位置に停止する。尚、この場合も、ガイドレール１０及びスライダー１２による車輪台１の逆方向の横行で段差部２０の最下位面と最上位面間の水平間隔Ｙを有効に解消できる。 Conversely, when moving over the stepped portion 20 from the entrance or entrance and moving to the installation ground (lowest surface) side, the descending wheel platform 1 is lifted in the same manner as described above and at the same time traverses in the direction of the stepped portion 20. By doing so, the wheelchair user can get on with the wheelchair 21 on the wheel platform 1 that has been raised to the uppermost surface by the elevating means, so that the traverse motor 15 is operated and the pinion gear 16 rotates in the reverse direction. Thus, if each slider 12 is traversed in the opposite direction to the stepped portion 20 along the corresponding guide rail 10 together with the wheel base 1 and the lifting means, each slider 12 stops at the detection position detected by the limit switch. To do. In this case as well, the horizontal interval Y between the lowermost surface and the uppermost surface of the stepped portion 20 can be effectively eliminated by the reverse traversing of the wheel base 1 by the guide rail 10 and the slider 12.

従って、後は、既述したように、昇降用モータ６を作動させて、巻取ローラ５を逆回転して平ベルト２の巻き取り状態を徐々に解除すると、車輪台１は設置地面まで垂直に下降して、車椅子使用者が車輪台１から簡単に降りられので、やはり、この場合も、外階段などの段差部２０を容易に乗り越えられる。尚、昇降手段による車輪台１の下降で、段差部２０の最下位面と最上位面間の垂直間隔Ｘを有効に解消できる。 Accordingly, as described above, when the lifting motor 6 is operated to reversely rotate the winding roller 5 to gradually release the winding state of the flat belt 2, the wheel base 1 is perpendicular to the installation ground. Since the wheelchair user can easily get off from the wheel base 1, the stepped portion 20 such as the outer staircase can be easily overcome in this case as well. Note that the vertical distance X between the lowermost surface and the uppermost surface of the stepped portion 20 can be effectively eliminated by lowering the wheel base 1 by the lifting means.

上記の実施例では、車輪台１の昇降手段に平ベルト２を使用したものであるが、本発明はこれに限定されるものではなく、車輪台１を垂直に昇降できるものであれば、ロープやチェーンなどの類のものを使用することも可能である。 In the above embodiment, the flat belt 2 is used as the lifting means of the wheel base 1. However, the present invention is not limited to this, and any rope that can vertically lift the wheel base 1 can be used. It is also possible to use things like chains and chains.

更に、実施例では、横行駆動機構にラックギア１４とピニオンギア１６と横行用モータ１５を使用しているが、これも限定されるものではなく、スクリューシャフトやチェーンなどを利用して、一対のスライダー１２をガイドレール１０に沿って正逆に横行させることも可能である。 Further, in the embodiment, the rack gear 14, the pinion gear 16, and the traverse motor 15 are used for the traverse drive mechanism, but this is not limited, and a pair of sliders using a screw shaft, a chain, or the like is used. It is also possible to traverse 12 along the guide rail 10 in the forward and reverse directions.

又、車輪台１の昇降やスライダー１２の横行に関する操作は、具体的には図示しないが、リフトの高所側と低所側の２ヶ所に設けられた手元操作盤（電源スイッチを含む）と、車輪台１のエプロン１ａの前後２ヶ所に設けられた押しボタンの操作により行うものとする。 The operations related to raising and lowering the wheel base 1 and the traversing of the slider 12 are not specifically shown, but a hand control panel (including a power switch) provided at two places on the high and low sides of the lift. It is assumed that the operation is performed by operating push buttons provided at two places before and after the apron 1a of the wheel base 1.

本発明に係る段差解消用リフトは、構造が簡素化されて価格が安価であるから、車椅子使用者の経済的な負担を低減し、段差解消用リフトの普及に大きく貢献できるので、これを外階段などの段差部が存在する一般住宅の玄関前や介護施設の入口付近などに設置すれば、頗る好都合なものとなる。 Since the lift for level difference elimination according to the present invention has a simplified structure and is inexpensive, it can reduce the economic burden on wheelchair users and greatly contribute to the spread of the level difference lift. If it is installed in front of the entrance of a general house where there are steps such as stairs or near the entrance of a nursing facility, it will be convenient.

１車輪台
１ａ車輪台のエプロン
２平ベルト（昇降手段）
２ａ平ベルトの固定端
２ｂ平ベルトの巻取端
３案内ローラ
４案内ローラ
５巻取ローラ
６昇降用モータ
７連結シャフト
８ボルト
９バー
１０ガイドレール
１１架台
１２スライダー
１３アジャスターボルト
１４ラックギア
１５横行用モータ
１６ピニオンギア
１７ガイドローラ
１８ガイド凸部
１９ガイド凹部
２０外階段（段差部２０）
２１車椅子
Ｘ段差部の垂直間隔
Ｙ段差部の水平間隔 1 Wheel stand 1a Apron of wheel stand 2 Flat belt (lifting means)
2a Flat belt fixed end 2b Flat belt winding end 3 Guide roller 4 Guide roller 5 Winding roller 6 Lifting motor 7 Connecting shaft 8 Bolt 9 Bar 10 Guide rail 11 Mounting base 12 Slider 13 Adjuster bolt 14 Rack gear 15 Traverse motor 16 Pinion gear 17 Guide roller 18 Guide convex part 19 Guide concave part 20 Outer stairs (step part 20)
21 Wheelchair X Vertical spacing of stepped portion Y Horizontal spacing of stepped portion

Claims

車椅子を乗せる車輪台と、該車輪台を垂直に昇降させる昇降手段とを備え、最下位面と最上位面間に複数段差又は傾斜面を有する段差部を解消して車椅子の移動を可能とする段差解消用リフトであって、上記段差部の最上位面と同レベルでの車輪台の横行を案内する一対のガイドレールと、該各ガイドレール内を横行する一対のスライダーと、該各スライダーと車輪台とを連繋する連繋手段とを設け、上記昇降手段による車輪台の昇降で上記段差部の最下位面と最上位面間の垂直間隔を解消すると共に、上記ガイドレール及びスライダーによる車輪台の横行で上記段差部の最下位面と最上位面間の水平間隔を解消する構成としたことを特徴とする段差解消用リフト。 A wheelchair on which a wheelchair is placed and an elevating means for vertically moving the wheelchair are provided, and the wheelchair can be moved by eliminating a step portion having a plurality of steps or inclined surfaces between the lowermost surface and the uppermost surface. A lift for level difference, a pair of guide rails for guiding the traversing of the wheel base at the same level as the uppermost surface of the level difference portion, a pair of sliders traversing the guide rails, and the sliders Connecting means for linking the wheel base, and eliminating the vertical interval between the lowermost surface and the uppermost surface of the stepped portion by raising and lowering the wheel base by the lifting means, and A lift for level difference elimination characterized in that it is configured to eliminate the horizontal interval between the lowermost surface and the uppermost surface of the stepped portion in traversal.

上記昇降手段は、車輪台の上下左右に設けられたローラに架け渡されるベルトを使用し、該ベルトの上部一端を固定端となし、同上部他端を巻取ローラで巻き取られる巻取端となして、該昇降手段をスライダーと一緒に横行させることを特徴とする請求項１記載の段差解消用リフト。 The elevating means uses a belt spanned by rollers provided on the upper, lower, left and right sides of the wheel base, the upper end of the belt is used as a fixed end, and the other end of the belt is taken up by a take-up roller. The lift for level difference elimination according to claim 1, wherein the elevating means is traversed together with the slider.

上記各スライダーを対応するガイドレールに沿って横行させる横行駆動機構を有することを特徴とする請求項１又は請求項２のいずれかに記載の段差解消用リフト。 3. The step eliminating lift according to claim 1, further comprising a traverse drive mechanism for traversing each of the sliders along a corresponding guide rail.

上記横行駆動機構は、少なくとも一方のスライダーに設けられるラックギアと、該ラックギアと咬合するピニオンギアと、該ピニオンギアを正逆回転させる横行用モータとから成り、スライダーが上記ラックギアと一体に横行することを特徴とする請求項３記載の段差解消用リフト。 The traverse drive mechanism includes a rack gear provided on at least one slider, a pinion gear meshing with the rack gear, and a traverse motor for rotating the pinion gear forward and reverse, and the slider traverses integrally with the rack gear. The lift for level | step difference elimination of Claim 3 characterized by these.

上記各スライダーの対向する内面に縦形凸部又は縦形凹部を設け、上記車輪台の各スライダーと対面する外面に縦形凹部又は縦形凸部を設け、該スライダーの凹凸部と車輪台の凹凸部を連繋させて、車輪台の昇降時における垂直ガイド機能と横行時における水平ガイド機能を得ることを特徴とする請求項１乃至請求項４のいずれかに記載の段差解消用リフト。 A vertical convex portion or a vertical concave portion is provided on the inner surface facing each slider, and a vertical concave portion or a vertical convex portion is provided on the outer surface facing each slider of the wheel base, and the uneven portion of the slider and the concave portion of the wheel base are connected. 5. The step-resolving lift according to claim 1, wherein a vertical guide function when the wheel base is raised and lowered and a horizontal guide function when traversing are obtained.