JPH081264U - Wheelchair drive - Google Patents
Wheelchair driveInfo
- Publication number
- JPH081264U JPH081264U JP3338993U JP3338993U JPH081264U JP H081264 U JPH081264 U JP H081264U JP 3338993 U JP3338993 U JP 3338993U JP 3338993 U JP3338993 U JP 3338993U JP H081264 U JPH081264 U JP H081264U
- Authority
- JP
- Japan
- Prior art keywords
- wheelchair
- transmission shaft
- wheel
- ratchet mechanism
- operating wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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- Transmission Devices (AREA)
Abstract
(57)【要約】
【目的】駆動に際し車椅子使用者の肉体的負担を軽減し
得る車椅子駆動装置を提供することにある。
【構成】車椅子の車軸の一端に同軸に接続される伝動軸
（１）と、伝動軸（１）の自由端側に同軸に、軸方向に
は相対移動不能に、かつ、相対回転自在に取りつけられ
る操作輪（４）と、操作輪（４）と、伝動軸（１）との
間に設けられ、操作輪（４）の前進方向回転のみを伝動
軸（１）に伝達するラチェット機構（３）とから成る車
椅子駆動装。
(57) [Abstract] [Purpose] To provide a wheelchair drive device capable of reducing a physical load on a wheelchair user during driving. [Structure] A transmission shaft (1) coaxially connected to one end of an axle of a wheelchair and a free end side of the transmission shaft (1) coaxially mounted so as to be relatively immovable in the axial direction and relatively rotatable. A ratchet mechanism (3) provided between the operating wheel (4), the operating wheel (4), and the transmission shaft (1) and transmitting only the forward rotation of the operating wheel (4) to the transmission shaft (1). ) Wheelchair drive equipment consisting of and.
Description
【０００１】[0001]
本考案は、人力で容易に駆動し得る車椅子駆動装置に関する。 The present invention relates to a wheelchair drive device that can be easily driven by human power.
【０００２】[0002]
歩行機能に重大な障害を有する者が社会生活を送るためには車椅子は必要不可 欠である。 このような車椅子の多くは手動であり、使用者が車輪に同軸に設けられた操作 輪を手で回転させ前進や後退をするものである。 この車椅子を移動させるためには操作輪を握って回転させ、さらに握り直して 回転させるという動作を繰り返さなければならないが、この一連の動作は肉体的 な負担が大きく、腕力が弱い者は使用することができないという問題点があり、 特に、上り坂を登る場合には車体が下方に戻ろうとするので操作輪を握り直して 回転させるには著しい体力の消耗を伴うため、腕力に自身がある者でも補助者を 要するという問題点がある。 Wheelchairs are indispensable for people with serious walking disabilities to live a social life. Most of such wheelchairs are manual, and the user manually rotates an operating wheel provided coaxially with the wheel to move forward or backward. In order to move this wheelchair, it is necessary to repeat the operation of grasping and rotating the operation wheel, and then re-grip and rotate, but this series of movements has a heavy physical burden and is used by persons with weak arm strength. In particular, when climbing an uphill, the body tends to return to the lower side, and it takes a considerable amount of physical strength to re-grip and rotate the operating wheel. However, there is a problem that it requires an assistant.
【０００３】[0003]
本考案は上記の問題点を解決するためなされたものであり、その目的とすると ころは、駆動に際し車椅子使用者の肉体的負担を軽減し得る車椅子駆動装置を提 供することにある。 The present invention has been made to solve the above problems, and an object of the present invention is to provide a wheelchair drive device that can reduce the physical load on the wheelchair user during driving.
【０００４】[0004]
上記の目的は、 車椅子の車軸の一端に同軸に接続される伝動軸と、 伝動軸の自由端側に同軸に、軸方向には相対移動不能に、かつ、相対回転自在 に取りつけられる操作輪と、 操作輪と、伝動軸との間に設けられ、操作輪の前進方向回転のみを伝動軸に伝 達するラチェット機構とから成る車椅子駆動装置によって解決される。 The purpose of the above is to provide a transmission shaft coaxially connected to one end of the wheelchair axle, and an operation wheel coaxially attached to the free end side of the transmission shaft so as to be relatively immovable in the axial direction and relatively rotatable. The wheelchair drive device includes a ratchet mechanism that is provided between the operating wheel and the transmission shaft and that transmits only the forward rotation of the operating wheel to the transmission shaft.
【０００５】[0005]
上記の如き構成であると、車椅子使用者は車椅子を前進させる際に操作輪を握 り直しながら一方向に回し続ける必要がなく、操作輪を握ったまま往復回動させ るだけでよいので、使用者の肉体的負担を軽減することができる。 With the above-mentioned configuration, the wheelchair user does not have to continue to rotate in one direction while regrabbing the operation wheel when moving the wheelchair forward, and only needs to reciprocate while holding the operation wheel. It is possible to reduce the physical burden on the user.
【０００６】[0006]
以下、図面により、本考案の詳細を説明する。 図１は本考案に係る車椅子駆動装置の構成を示す説明図、図２は図１に示した 装置のラチェット機構を示す説明図、図３は図１に示した装置の断面図、図４は 本考案に係る装置が設けられた車椅子の第一実施例を示す斜視図、図５は本考案 に係る装置が設けられた車椅子の第二実施例を示す斜視図である。 Hereinafter, the present invention will be described in detail with reference to the drawings. 1 is an explanatory view showing the configuration of a wheelchair drive device according to the present invention, FIG. 2 is an explanatory view showing a ratchet mechanism of the device shown in FIG. 1, FIG. 3 is a sectional view of the device shown in FIG. 1, and FIG. FIG. 5 is a perspective view showing a first embodiment of a wheelchair provided with the device according to the present invention, and FIG. 5 is a perspective view showing a second embodiment of a wheelchair provided with the device according to the present invention.
【０００７】 図中、１は伝動軸、１０は伝動軸１の一方の端部に設けられる円板状のクラン プ盤、２は伝動軸１の他方の端部に設けられるドーナツ形のハウジング、３はラ チェットホイール３０とラチェット爪３１とから成るラチェット機構、４はハウ ジング２とラチェットホイール３０が取り付けられる操作輪、５は略Ｌ字形の補 助レバー、６はスポークである。In the figure, 1 is a transmission shaft, 10 is a disk-shaped clamping plate provided at one end of the transmission shaft 1, 2 is a donut-shaped housing provided at the other end of the transmission shaft 1, 3 is a ratchet mechanism including a ratchet wheel 30 and a ratchet pawl 31, 4 is an operating wheel to which the housing 2 and the ratchet wheel 30 are attached, 5 is a substantially L-shaped auxiliary lever, and 6 is a spoke.
【０００８】 先ず、図１ないし図３について説明する。 伝動軸１は一方の端部におねじを有し、他方の端部にはフランジを有する。 伝動軸１のフランジ側の端面には４個のラチェット爪３１がその伝動軸１の軸 方向に平行に軸支される。 このラチェット爪３１はフランジの辺縁に沿って回転対称に配設され、それぞ れラチェット爪３１にはその先端が伝動軸１の中心軸とは反対方向に向くようば ね３１０が設けられる。First, FIGS. 1 to 3 will be described. The transmission shaft 1 has a screw at one end and a flange at the other end. Four ratchet pawls 31 are axially supported on the end surface of the transmission shaft 1 on the flange side in parallel with the axial direction of the transmission shaft 1. The ratchet pawls 31 are arranged rotationally symmetrically along the edge of the flange, and each ratchet pawl 31 is provided with a ridge 310 whose tip is directed in the direction opposite to the central axis of the transmission shaft 1.
【０００９】 ハウジング２は一面の中央にラチェットホイール３０を収容し得るホイール孔 と、その奥に伝動軸１のフランジとを収容し得る段部を有し、さらに、そのホイ ール孔の周囲に４個のボルト孔２ａを有する。The housing 2 has a wheel hole capable of accommodating the ratchet wheel 30 at the center of one surface, and a stepped portion capable of accommodating the flange of the transmission shaft 1 at the inner side thereof, and further has a stepped portion around the wheel hole. It has four bolt holes 2a.
【００１０】 操作輪４は円盤状であり、辺縁が断面Ｊ字形に内側に折り曲げられ、その中央 には中央孔が設けられ、その周囲には環状に４個のホイール取付用のボルト孔４ ａが設けられ、さらにその外側に環状にそれぞれ４個ずつのハウジング取付用の ボルト孔４ｂ及び駆動孔４ｃが交互に配設される。The operation wheel 4 has a disk shape, the edges thereof are bent inward in a J-shaped cross section, a central hole is provided at the center thereof, and four wheel mounting bolt holes 4 are annularly provided around the central hole. a is provided, and further, four bolt holes 4b and four driving holes 4c for mounting the housing are alternately arranged annularly on the outside thereof.
【００１１】 ラチェットホイール３０は内歯歯車であり、外径はハウジング２のホイール孔 と略等しく、辺縁付近には４個のねじ孔３０ａが等間隔に設けられる。 ラチェットホイール３０は、ボルト４０により操作輪４と同軸に取り付けられ る。The ratchet wheel 30 is an internal gear, has an outer diameter substantially equal to that of the wheel hole of the housing 2, and four screw holes 30a are provided at equal intervals near the edge. The ratchet wheel 30 is mounted coaxially with the operation wheel 4 by a bolt 40.
【００１２】 而して、ハウジング２は、伝動軸１にそのおねじ側から嵌め込まれ、ラチェッ トホイール３０がハウジング２のホイール孔に収まり、ラチェット爪３１がラチ ェットホイール３０の内歯に噛み合わされた状態で操作輪４に取り付けられる。 これにより操作輪４は、伝動軸１の一端に回動自在に、かつ、軸方向には移動 不能に取り付けられ、かつ、その往復回動運動のうち前進方向回転のみが伝動軸 １に伝達されるようになる。Thus, the housing 2 is fitted to the transmission shaft 1 from the male screw side thereof, the ratchet wheel 30 is fitted in the wheel hole of the housing 2, and the ratchet pawl 31 is meshed with the inner teeth of the ratchet wheel 30. It is attached to the operation wheel 4 in a closed state. As a result, the operating wheel 4 is rotatably attached to one end of the transmission shaft 1 and is immovable in the axial direction, and only the forward rotation of the reciprocating rotational movement is transmitted to the transmission shaft 1. Become so.
【００１３】 クランプ盤１０は中央にめねじと、一方の面に車椅子の車輪のスポーク６を把 持し得る６個のクランプ１０ａを有し、クランプ１０ａが伝達軸１とは反対側に 向くよう伝達軸１のおねじ部に取り付けられる。The clamp board 10 has a female screw in the center and six clamps 10 a capable of holding the spokes 6 of the wheel of the wheelchair on one surface, so that the clamp 10 a faces the side opposite to the transmission shaft 1. It is attached to the external thread of the transmission shaft 1.
【００１４】 而して、本考案に係る車椅子駆動装置を使用するときには、図４に示されるよ うに、二組の本考案品をそれぞれクランプ盤２のクランプ１０ａで車椅子のスポ ーク６を挟持し、その左右の両車輪と同軸に取り付ける。 而して、車椅子を前進させるときは、使用者は操作輪３の一部分を直接掴んで 操作輪３を往復回動させると、その操作輪３の往復回動は、ラチェット機構３で 一方向への回転に変換され、それが伝動軸１０に伝わり、車輪を回転させて車椅 子を前進させる。また、車椅子を左右いずれかに旋回させるときは一方の駆動装 置のみを使用すればよい。Therefore, when the wheelchair drive device according to the present invention is used, as shown in FIG. 4, two sets of the present invention product are clamped by the clamps 10 a of the clamp board 2 to hold the spokes 6 of the wheelchair. Then, install it coaxially with the left and right wheels. Thus, when moving the wheelchair forward, the user directly grasps a part of the operation wheel 3 and reciprocally rotates the operation wheel 3, and the reciprocal rotation of the operation wheel 3 is made in one direction by the ratchet mechanism 3. Is converted into the rotation of the wheel, which is transmitted to the transmission shaft 10 to rotate the wheel to move the wheel chair forward. Also, when turning the wheelchair to the left or right, only one drive device needs to be used.
【００１５】 また、坂を上る場合や、使用者が非力である場合には、補助レバー５が用いら れる。 補助レバー５は略Ｌ字形であり、一端側がハンドル部５ａとなり、他の一端の 端部付近にはハンドル部５ａの軸方向に平行に、操作輪４の駆動孔４ｂに対応す る短い２本の足５ｂ、５ｃが設けられ、さらに、その足５ｂ、５ｃが設けられた 一端側の、足５ｂ、５ｃが設けられた方向とは反対側の部分に細長いプロテクタ ー５０が設けられる。The auxiliary lever 5 is used when climbing a slope or when the user is weak. The auxiliary lever 5 is substantially L-shaped, and one end side is a handle portion 5a, and two short ones near the other end are parallel to the axial direction of the handle portion 5a and correspond to the drive hole 4b of the operating wheel 4. Feet 5b, 5c are provided, and an elongated protector 50 is provided on a portion of the one end side where the feet 5b, 5c are provided and on the side opposite to the direction in which the feet 5b, 5c are provided.
【００１６】 この補助レバー５は、図５に示されるように、そのハンドル部５２が車椅子使 用者の手元にくるようその足５３、５４を操作輪３の駆動孔３６に挿入し、使用 者はハンドル部５２を前後に往復さる。 このようにすると、てこの作用で車椅子を楽に前進させることができる。As shown in FIG. 5, the auxiliary lever 5 has its feet 53 and 54 inserted into the drive hole 36 of the operation wheel 3 so that the handle portion 52 thereof comes close to the wheelchair user's hand, and the user can Moves the handle portion 52 back and forth. By doing so, the lever can easily move the wheelchair forward.
【００１７】 なお、本考案は叙上の実施例に限定されず、例えば、実施例は既成の車椅子に 取り付けるものであるが、車椅子の車輪に最初から本考案に係る装置を組み込ん で製造してもよく、また、車輪が反対方向にも回転するようにラチェット機構に 切換装置を設けてもよく、また、ラチェット機構は外歯歯車を使用したものでも よい。 さらに、ラチェットホイールの内歯、ラチェット爪等の個数や、クランプ盤、 操作盤、補助レバー、駆動孔等の形状等は本考案の目的の範囲内で自由に設計変 更し得るものであり、本考案は、上記の説明から当業者が極めて容易に想到し得 る総ての変更実施例を包摂するものである。The present invention is not limited to the above-mentioned embodiment, and for example, the embodiment is to be attached to an existing wheelchair, but the wheel according to the present invention is manufactured by incorporating the device according to the present invention into the wheel of the wheelchair from the beginning. Alternatively, the ratchet mechanism may be provided with a switching device so that the wheels may rotate in the opposite direction, and the ratchet mechanism may use an external gear. Further, the inner teeth of the ratchet wheel, the number of ratchet pawls, etc., and the shapes of the clamp board, operation board, auxiliary lever, drive hole, etc. can be freely changed within the scope of the purpose of the present invention. The present invention covers all modified embodiments that can be easily conceived by those skilled in the art from the above description.
【００１８】[0018]
本考案に係る自動車用警報装置は叙上の如く構成されるので、本考案によると きは、車椅子の使用者は操作輪の一部を握り、往復回動させるか、又は、補助レ バーを握り、往復させるだけで楽に車椅子を前進させることができ、特に、補助 レバーを使用すると弱い力でも車椅子を前進させることができるので、使用者の 肉体的負担を軽減し得る。 Since the vehicle alarm device according to the present invention is constructed as described above, according to the present invention, the user of the wheelchair grips a part of the operating wheel and reciprocally rotates or an auxiliary lever is provided. The wheelchair can be easily moved forward simply by grasping and reciprocating, and in particular, when the auxiliary lever is used, the wheelchair can be moved forward even with a weak force, which can reduce the physical burden on the user.
【図１】本考案に係る車椅子駆動装置の構成を示す説明
図である。FIG. 1 is an explanatory view showing a configuration of a wheelchair drive device according to the present invention.
【図２】図１に示した装置のラチェット機構を示す説明
図である。FIG. 2 is an explanatory diagram showing a ratchet mechanism of the device shown in FIG.
【図３】図１に示した装置の断面図である。FIG. 3 is a cross-sectional view of the device shown in FIG.
【図４】本考案に係る装置が設けられた車椅子の第一実
施例を示す斜視図である。FIG. 4 is a perspective view showing a first embodiment of a wheelchair provided with a device according to the present invention.
【図５】本考案に係る装置が設けられた車椅子の第二実
施例を示す斜視図である。FIG. 5 is a perspective view showing a second embodiment of a wheelchair provided with the device according to the present invention.
１・・・・・・・伝動軸 １０・・・・・・クランプ盤 １０ａ・・・・・クランプ ２・・・・・・・ハウジング ２ａ・・・・・・ボルト孔 ２ｂ・・・・・・駆動孔 ３・・・・・・・ラチェット機構 ３０・・・・・・ラチェットホイール ３０ａ・・・・・ねじ孔 ３１・・・・・・ラチェット爪 ３１０・・・・・ばね ４・・・・・・・操作輪 ４０・・・・・・ボルト ４ａ・・・・・・ホイール取付用のボルト孔 ４ｂ・・・・・・ハウジング取付用のボルト孔 ４ｃ・・・・・・駆動孔 ５・・・・・・・補助レバー ５ａ・・・・・・ハンドル部 ５ｂ、５ｃ・・・足 ５０・・・・・・プロテクター ６・・・・・・・スポーク 1 ··· Transmission shaft 10 ··· Clamping board 10a ··· Clamp 2 ··· Housing 2a ··· Bolt hole 2b ···・ Drive hole 3 ・ ・ ・ ・ ・ ・ ・ ・ Ratchet mechanism 30 ・ ・ ・ ・ ・ ・ ・ ・ Ratchet wheel 30a ・ ・ ・ Screw hole 31 ・ ・ ・ ・ ・ ・ ・ ・ Ratchet pawl 310 ・ ・ ・ Spring 4 ・ ・ ・・ ・ ・ ・ Operating wheel 40 ・ ・ ・ ・ ・ ・ Bolt 4a ・ ・ ・ ・ ・ ・ Bolt hole for wheel mounting 4b ・ ・ ・ ・ Bolt hole for housing mounting 4c ・ ・ ・ ・ ・ ・ Drive hole 5・ ・ ・ Auxiliary lever 5a ・ ・ ・ ・ ・ Handle parts 5b, 5c ・ ・ ・ Foot 50 ・ ・ ・ ・ ・ ・ Protector 6 ・ ・ ・ ・ ・ ・ Spoke
Claims (6)
動軸（１）と、 伝動軸（１）の自由端側に同軸に、軸方向には相対移動
不能に、かつ、相対回転自在に取りつけられる操作輪
（４）と、 操作輪（４）と、伝動軸（１）との間に設けられ、操作
輪（４）の前進方向回転のみを伝動軸（１）に伝達する
ラチェット機構（３）とから成る車椅子駆動装。1. A transmission shaft (1) coaxially connected to one end of an axle of a wheelchair, coaxial with a free end side of the transmission shaft (1), relatively immovable in the axial direction, and relatively rotatable. A ratchet mechanism provided between the operating wheel (4) attached to the vehicle, the operating wheel (4) and the transmission shaft (1), and transmitting only the forward rotation of the operating wheel (4) to the transmission shaft (1). (3) A wheelchair drive system comprising:
る側の端部に、車輪のスポークを把持する複数のクラン
プ（１０ａ）を有するクランプ盤（１０）を具備する請
求項１に記載の車椅子駆動装置。2. The transmission shaft (1) comprises a clamp board (10) having a plurality of clamps (10a) for gripping the spokes of the wheel at the end of the wheelchair connected to the axle. The wheelchair drive device according to.
たものである請求項１又は２に記載の車椅子駆動装置。3. The wheelchair drive device according to claim 1, wherein the ratchet mechanism (3) uses an internal gear.
有する請求項１ないし３のいずれか一に記載の車椅子駆
動装置。4. The wheelchair drive according to claim 1, further comprising an auxiliary lever (5) for driving the operating wheel (4).
ェット機構と、その切換装置とを有する請求項１ないし
４のいずれか一に記載の車椅子駆動装置。5. The wheelchair drive device according to claim 1, further comprising a forward ratchet mechanism, a backward ratchet mechanism, and a switching device for the ratchet mechanism.
車椅子の車軸の両端にそれぞれ取り付けられる請求項１
に記載の車椅子駆動装置。6. A wheelchair axle having a mirror-symmetrical structure and attached to both ends of a wheelchair axle in pairs.
The wheelchair drive device according to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3338993U JPH081264U (en) | 1993-06-21 | 1993-06-21 | Wheelchair drive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3338993U JPH081264U (en) | 1993-06-21 | 1993-06-21 | Wheelchair drive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH081264U true JPH081264U (en) | 1996-08-13 |
Family
ID=12385241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3338993U Pending JPH081264U (en) | 1993-06-21 | 1993-06-21 | Wheelchair drive |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH081264U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5251826U (en) * | 1975-10-07 | 1977-04-13 | ||
| JPS6013322U (en) * | 1983-07-05 | 1985-01-29 | 伊藤景パツク産業株式会社 | confectionery containers |
| JP2007505003A (en) * | 2003-09-12 | 2007-03-08 | ピュア グローバル リミテッド | Propulsion aid |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4828515U (en) * | 1971-08-09 | 1973-04-07 | ||
| JPS54154185A (en) * | 1978-05-23 | 1979-12-05 | Mitsuyoshi Yamaguchi | Lever drive system wheelchair |
| JPS55108360A (en) * | 1979-02-13 | 1980-08-20 | Mitsuyoshi Yamaguchi | Backkstop mechanism of wheelchair |
| JPS61110622A (en) * | 1984-11-05 | 1986-05-28 | Mitsuyoshi Yamaguchi | Wheeled chair equipped with crank-driven front wheels |
-
1993
- 1993-06-21 JP JP3338993U patent/JPH081264U/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4828515U (en) * | 1971-08-09 | 1973-04-07 | ||
| JPS54154185A (en) * | 1978-05-23 | 1979-12-05 | Mitsuyoshi Yamaguchi | Lever drive system wheelchair |
| JPS55108360A (en) * | 1979-02-13 | 1980-08-20 | Mitsuyoshi Yamaguchi | Backkstop mechanism of wheelchair |
| JPS61110622A (en) * | 1984-11-05 | 1986-05-28 | Mitsuyoshi Yamaguchi | Wheeled chair equipped with crank-driven front wheels |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5251826U (en) * | 1975-10-07 | 1977-04-13 | ||
| JPS5640659Y2 (en) * | 1975-10-07 | 1981-09-22 | ||
| JPS6013322U (en) * | 1983-07-05 | 1985-01-29 | 伊藤景パツク産業株式会社 | confectionery containers |
| JPS636015Y2 (en) * | 1983-07-05 | 1988-02-19 | ||
| JP2007505003A (en) * | 2003-09-12 | 2007-03-08 | ピュア グローバル リミテッド | Propulsion aid |
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