JP2002315789A - Motor-driven wheelchair - Google Patents
Motor-driven wheelchairInfo
- Publication number
- JP2002315789A JP2002315789A JP2001125695A JP2001125695A JP2002315789A JP 2002315789 A JP2002315789 A JP 2002315789A JP 2001125695 A JP2001125695 A JP 2001125695A JP 2001125695 A JP2001125695 A JP 2001125695A JP 2002315789 A JP2002315789 A JP 2002315789A
- Authority
- JP
- Japan
- Prior art keywords
- wheelchair
- power unit
- hub
- width direction
- drive 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
Landscapes
- Automatic Cycles, And Cycles In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電動式車椅子に関
する。[0001] The present invention relates to an electric wheelchair.
【０００２】[0002]
【従来の技術】車椅子には鋼管等を組み合わせた左右一
対の枠体を備え、車椅子の幅方向に折り畳み可能に構成
したものがある。2. Description of the Related Art Some wheelchairs are provided with a pair of left and right frame members combined with steel pipes or the like so as to be foldable in the width direction of the wheelchair.
【０００３】近年、このような車椅子の駆動輪である後
輪に電動モータを備えたパワーユニットを取り付けた
り、後輪を予めパワーユニットが組み付けられたものと
交換したりすることにより、電動走行を可能にしたもの
がある。[0003] In recent years, a power unit equipped with an electric motor has been mounted on the rear wheel, which is a driving wheel of such a wheelchair, or the rear wheel has been replaced with a power unit in which a power unit has been assembled in advance, thereby enabling electric traveling. There is something.
【０００４】一方、車椅子にはその夜間の視認性を向上
させるために、プレート状またはシール状のリフレクタ
を車体に貼付している。On the other hand, in order to improve the nighttime visibility of a wheelchair, a plate-shaped or seal-shaped reflector is attached to a vehicle body.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、後輪に
パワーユニットを取り付けると車椅子の幅が広がった
り、外観を損なったりする虞がある。また、後輪のパワ
ーユニットへの軸着部に路面の埃や泥がかかりやすい。However, when the power unit is mounted on the rear wheel, there is a possibility that the width of the wheelchair is widened or the appearance is impaired. In addition, dust and mud on the road surface are likely to be applied to the shaft attachment portion of the rear wheel to the power unit.
【０００６】一方、別体のリフレクタを車体に張付する
ことは部品点数の増加および組付け工程数の増加を伴
い、コストの増加を招く。On the other hand, attaching a separate reflector to the vehicle body involves an increase in the number of parts and the number of assembling steps, resulting in an increase in cost.
【０００７】本発明は上述した事情を考慮してなされた
もので、コンパクト化および外観の向上を図った電動式
車椅子を提供することを目的とする。The present invention has been made in consideration of the above circumstances, and has as its object to provide an electric wheelchair that is compact and has an improved appearance.
【０００８】本発明の他の目的は、部品点数および組付
け工程数の削減を図った電動式車椅子を提供するにあ
る。Another object of the present invention is to provide an electric wheelchair in which the number of parts and the number of assembling steps are reduced.
【０００９】[0009]
【課題を解決するための手段】本発明に係る電動式車椅
子は、上述した課題を解決するために、請求項１に記載
したように、左右一対の枠体を備え、車幅方向内側に向
かって折り畳み可能に構成された車椅子において、上記
枠体の後下部に左右一対の駆動輪を設け、これらの駆動
輪の内側に電動モータを内装したパワーユニットをそれ
ぞれ設けると共に、上記パワーユニットから上記車椅子
の幅方向外側に向かって突出する駆動輪軸に上記駆動輪
を軸着する一方、上記駆動輪はハブと、タイヤと、この
タイヤのリムとハブとの間に張設されるスポークとを有
し、上記ハブを上記駆動輪軸に締着されるボス部と、こ
のボス部の外周縁に形成されるカバー部とから構成する
と共に、上記カバー部を、上記パワーユニットを外側か
ら覆う椀状に形成したものである。According to a first aspect of the present invention, there is provided an electric wheelchair including a pair of left and right frames, which are directed inward in the vehicle width direction. In a wheelchair configured to be foldable, a pair of left and right drive wheels are provided at a lower rear portion of the frame, and a power unit having an electric motor is provided inside the drive wheels. The drive wheel has a hub, a tire, and spokes stretched between a rim of the tire and the hub, while the drive wheel is mounted on a drive wheel shaft protruding outward in the direction. The hub is composed of a boss portion fastened to the drive wheel shaft and a cover portion formed on the outer peripheral edge of the boss portion, and the cover portion is formed in a bowl shape that covers the power unit from outside. Those were.
【００１０】また、上述した課題を解決するために、請
求項２に記載したように、上記カバー部外周縁の端部を
上記ボス部の軸方向内側端より上記車椅子の幅方向内側
に向かって延設して上記駆動輪の幅方向中心が上記パワ
ーユニットと重なるように形成したものである。[0010] In order to solve the above-mentioned problem, as described in claim 2, the end of the outer peripheral edge of the cover portion is directed inward in the width direction of the wheelchair from the axially inner end of the boss portion. The drive unit is extended so that the center of the drive wheel in the width direction overlaps with the power unit.
【００１１】さらに、上述した課題を解決するために、
請求項３に記載したように、上記ボス部の上記駆動輪軸
への締着部分をホイルキャップで覆うと共に、上記ホイ
ルキャップの外表面を反射部材で形成したものである。Further, in order to solve the above-mentioned problems,
As described in claim 3, a portion of the boss portion fastened to the drive wheel shaft is covered with a foil cap, and an outer surface of the wheel cap is formed of a reflecting member.
【００１２】さらにまた、上述した課題を解決するため
に、請求項４に記載したように、上記ボス部の上記駆動
輪軸への締着部分をホイルキャップで覆うと共に、上記
ホイルキャップを発光性の樹脂で形成したものである。Further, in order to solve the above-mentioned problem, as described in claim 4, a portion where the boss portion is fastened to the drive wheel shaft is covered with a wheel cap, and the wheel cap is illuminated. It is formed of resin.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施形態を図面に
基づいて説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】図１は、本発明を適用した電動式車椅子の
一実施形態を示す左側面図であり、図２はこの電動式車
椅子の後面（背面）図である。図１および図２に示すよ
うに、この車椅子１は例えば鋼管やアルミニウム管等を
組み合わせた左右一対の枠体２Ｌ，２Ｒを備え、左右の
枠体２Ｌ，２Ｒ間にＸ状に架設されたクロスメンバ３に
よって車椅子１の車幅方向内側に向かって折り畳み可能
に構成される。FIG. 1 is a left side view showing an embodiment of an electric wheelchair to which the present invention is applied, and FIG. 2 is a rear (rear) view of the electric wheelchair. As shown in FIGS. 1 and 2, this wheelchair 1 is provided with a pair of left and right frames 2L and 2R, for example, combining steel pipes and aluminum pipes, and a cross formed in an X shape between the left and right frames 2L and 2R. The member 3 is configured to be foldable inward of the wheelchair 1 in the vehicle width direction.
【００１５】左右の枠体２Ｌ，２Ｒ間には搭乗者（図示
せず）用の着座部４が架設される。また、この着座部４
の後上方には背もたれ部５が左右の枠体２Ｌ，２Ｒ間に
架設される。さらに、着座部４の左右上部には一対のア
ームレスト６，６が設けられる。そして、背もたれ部５
の後上方には左右一対の介助者（図示せず）用手押しハ
ンドル７，７が設けられる。A seat 4 for a passenger (not shown) is provided between the left and right frames 2L and 2R. Also, this seat 4
Above the rear, a backrest 5 is provided between the left and right frames 2L and 2R. Further, a pair of armrests 6 and 6 are provided on the left and right upper portions of the seating portion 4. And backrest part 5
A pair of left and right hand push handles 7, 7 for a caregiver (not shown) are provided at the rear upper side.
【００１６】枠体２Ｌ，２Ｒの後下部には左右一対の後
輪８Ｌ，８Ｒが駆動輪として回動自在に軸着される。ま
た、後輪８Ｌ，８Ｒの外側には搭乗者が後輪８Ｌ，８Ｒ
を手動で駆動するためのハンドリム９，９が設けられ
る。一方、枠体２Ｌ，２Ｒの前下部には左右一対のキャ
スター型前輪１０，１０が操舵輪として設けられると共
に、前輪１０，１０の前方には折り畳み可能な左右一対
のフットレスト１１，１１が設けられる。A pair of left and right rear wheels 8L, 8R are rotatably mounted as drive wheels at lower rear portions of the frames 2L, 2R. Further, outside the rear wheels 8L, 8R, the passengers are rear wheels 8L, 8R.
Are manually provided. On the other hand, a pair of left and right caster-type front wheels 10, 10 are provided as steering wheels in the lower front part of the frames 2L, 2R, and a pair of foldable left and right footrests 11, 11 are provided in front of the front wheels 10, 10. .
【００１７】左右の後輪８Ｌ，８Ｒの内側には後輪駆動
用の電動モータ１２Ｌ，１２Ｒを内装したパワーユニッ
ト１３Ｌ，１３Ｒがそれぞれの後輪８Ｌ，８Ｒに装着さ
れる。また、左右の枠体２Ｌ，２Ｒ間で、背もたれ部５
の後方、一方のパワーユニット、本実施形態においては
右側後輪８Ｒ用パワーユニット１３Ｒの上方には電動モ
ータ駆動用バッテリ１４の収納部１５および電動モータ
１２Ｌ，１２Ｒの制御装置１６が設けられ、バッテリ１
４の収納部１５には電装品であるバッテリ１４が着脱自
在に装着される。Inside the left and right rear wheels 8L and 8R, power units 13L and 13R containing electric motors 12L and 12R for driving rear wheels are mounted on the rear wheels 8L and 8R, respectively. A backrest 5 is provided between the left and right frames 2L and 2R.
A storage unit 15 for the electric motor driving battery 14 and a control device 16 for the electric motors 12L and 12R are provided behind the power unit 13R above the power unit 13R for the right rear wheel 8R.
A battery 14, which is an electrical component, is removably mounted in the storage section 15 of the fourth section.
【００１８】左右の枠体２Ｌ，２Ｒの側方で、左右の後
輪８Ｌ，８Ｒの前方にはブレーキ装置１７がそれぞれの
後輪８Ｌ，８Ｒに対して備えられる。また、例えば段差
を乗り越える際に車椅子１の前輪１０を上方に持ち上げ
ることがあるが、その際に車椅子１が後方に向かって大
きく傾かないよう、枠体２Ｌ，２Ｒの後下部には左右一
対の補助輪１８，１８がステー１９，１９を介して後斜
め下方に向かって延設される。Brake devices 17 are provided for the rear wheels 8L and 8R, respectively, in front of the left and right rear wheels 8L and 8R on the sides of the left and right frames 2L and 2R. Further, for example, the front wheel 10 of the wheelchair 1 may be lifted upward when climbing over a step. At this time, a pair of left and right frames 2L and 2R are provided on the lower rear portions of the frames 2L and 2R so that the wheelchair 1 does not greatly lean backward. Auxiliary wheels 18, 18 extend obliquely rearward and downward via stays 19, 19, respectively.
【００１９】一方、例えば右側の枠体２Ｒ前部にはコン
トローラケース２０が他のステー２１を介して着脱自在
に取り付けられる。このコントローラケース２０の上面
には搭乗者が車椅子１の進行方向および進行速度を制御
可能な例えばジョイスティックレバー２２が直立状態で
設けられると共に、バッテリ１４の残量や走行可能時間
等を表示する図示しない表示部も設けられる。On the other hand, for example, a controller case 20 is detachably attached to a front portion of the right frame 2R via another stay 21. On the upper surface of the controller case 20, for example, a joystick lever 22, which allows the rider to control the traveling direction and traveling speed of the wheelchair 1, is provided in an upright state, and the remaining amount of the battery 14, the travelable time, and the like are displayed (not shown). A display is also provided.
【００２０】図３は、図２のＩＩＩ矢視図、すなわち左
側の後輪８Ｌに装着されるパワーユニット１３Ｌの右側
面図であり、図４は図３のＩＶ−ＩＶ線に沿う断面図で
ある。なお、右側の後輪８Ｒに装着されるパワーユニッ
ト１３Ｒは左側のパワーユニット１３Ｌとは対称の形状
およびレイアウトを有し、構造的にはまったく同一のも
のである。以下、左側のパワーユニット１３Ｌを用いて
説明する。FIG. 3 is a view taken in the direction of the arrow III in FIG. 2, that is, a right side view of the power unit 13L mounted on the left rear wheel 8L, and FIG. 4 is a sectional view taken along the line IV-IV in FIG. . The power unit 13R mounted on the right rear wheel 8R has a symmetrical shape and layout with respect to the left power unit 13L, and is structurally identical. Hereinafter, description will be made using the left power unit 13L.
【００２１】図３および図４に示すように、パワーユニ
ット１３Ｌは分割可能な例えばアルミニウムダイキャス
ト製のケーシング内に電動モータ１２Ｌと、この電動モ
ータ１２Ｌの回転駆動力を後輪８Ｌに伝達し、且つ後輪
８Ｌを軸支する後輪軸２３（駆動輪軸）と、電動モータ
１２Ｌと後輪軸２３との間に設けられる減速ギヤ機構２
４と、同じく電動モータ１２Ｌと後輪軸２３との間に設
けられ、電動モータ１２Ｌと後輪軸２３との連結を接断
続するクラッチ機構２５等を内装する。As shown in FIGS. 3 and 4, the power unit 13L transmits an electric motor 12L and a rotational driving force of the electric motor 12L to a rear wheel 8L in a splittable, for example, aluminum die-cast casing. A rear wheel axle 23 (drive wheel axle) that supports the rear wheel 8L, and a reduction gear mechanism 2 provided between the electric motor 12L and the rear wheel axle 23
4, and a clutch mechanism 25 and the like, which are provided between the electric motor 12L and the rear wheel shaft 23 and connect / disconnect the connection between the electric motor 12L and the rear wheel shaft 23.
【００２２】電動モータ１２Ｌは、図４に示すように、
その出力軸２６が後輪軸２３と平行になるように配置さ
れると共に、図２に示すように、パワーユニット１３Ｌ
から車椅子１の内側に向かって突出させて配置される。The electric motor 12L is, as shown in FIG.
The output shaft 26 is arranged so as to be parallel to the rear wheel shaft 23, and as shown in FIG.
And protruding toward the inside of the wheelchair 1.
【００２３】一方、図４において、後輪側（図の下方）
に突出する電動モータ１２Ｌの他方の出力軸２６端には
この出力軸２６と平行に配置された第一減速ギヤ軸２７
のドリブンギヤ２８が作動連結される。また、第一減速
ギヤ軸２７のドライブギヤ２９にはこの第一減速ギヤ軸
２７と平行に配置された第二減速ギヤ軸３０のドリブン
ギヤ３１が作動連結される。さらに、第二減速ギヤ軸３
０のドライブギヤ３２にはこの第二減速ギヤ軸３０と平
行に配置された後輪軸２３のドリブンギヤ３３が作動連
結される。On the other hand, in FIG. 4, the rear wheel side (the lower side in the figure)
The other end of the other output shaft 26 of the electric motor 12L protrudes from the first reduction gear shaft 27 disposed in parallel with the output shaft 26.
Driven gear 28 is operatively connected. The driven gear 31 of the second reduction gear shaft 30 arranged in parallel with the first reduction gear shaft 27 is operatively connected to the drive gear 29 of the first reduction gear shaft 27. Further, the second reduction gear shaft 3
The driven gear 33 of the rear wheel axle 23 arranged in parallel with the second reduction gear shaft 30 is operatively connected to the 0 drive gear 32.
【００２４】ところで、第二減速ギヤ軸３０のドライブ
ギヤ３２はこの第二減速ギヤ軸３０の軸方向に摺動可能
に設けられ、第二減速ギヤ軸３０に回転一体に設けられ
たドリブンギヤ３１と連結されたり切り離されたりする
ことにより電動モータ１２Ｌと後輪軸２３との連結を接
断続するクラッチ機構２５を構成する。The drive gear 32 of the second reduction gear shaft 30 is provided so as to be slidable in the axial direction of the second reduction gear shaft 30, and a driven gear 31 provided integrally with the second reduction gear shaft 30 for rotation. The clutch mechanism 25 that connects and disconnects the connection between the electric motor 12L and the rear wheel shaft 23 by being connected or disconnected is configured.
【００２５】クラッチ機構２５の操作はパワーユニット
１３Ｌから車椅子１の幅方向内側に向かって突出するク
ラッチ軸３４に固着されたクラッチ機構２５の操作手段
であるクラッチレバー３５によって行われる。また、ク
ラッチレバー３５は左右のパワーユニット１３Ｌ，１３
Ｒにそれぞれ備えられる。The operation of the clutch mechanism 25 is performed by a clutch lever 35 which is an operating means of the clutch mechanism 25 fixed to a clutch shaft 34 projecting inward from the power unit 13L in the width direction of the wheelchair 1. The clutch lever 35 is connected to the left and right power units 13L, 13L.
R is provided for each.
【００２６】図４において詳細に示すように、パワーユ
ニット１３Ｌから車椅子１の幅方向外側に向かって突出
する後輪軸２３には後輪８Ｌが軸着される。後輪８Ｌは
ハブ３６と、タイヤ３７と、このタイヤ３７のリム３８
とハブ３６との間に張設されるスポーク３９と、タイヤ
３７のリム３８に取り付けられるハンドリム９とから構
成される。As shown in detail in FIG. 4, a rear wheel 8L is mounted on a rear wheel axle 23 projecting outward from the power unit 13L in the width direction of the wheelchair 1. The rear wheel 8L includes a hub 36, a tire 37, and a rim 38 of the tire 37.
And a hub 36 and a spoke 39 that is stretched between the hub and the hand rim 9 attached to the rim 38 of the tire 37.
【００２７】また、ハブ３６は上記後輪軸２３にナット
４０によって締着されるボス部４１と、このボス部４１
の外周縁に形成されるカバー部４２とから構成され、ボ
ス部４１の後輪軸２３への締着部分はホイルキャップ４
３によって覆われる。The hub 36 has a boss 41 fastened to the rear wheel axle 23 by a nut 40, and the boss 41
And a cover portion 42 formed on an outer peripheral edge of the wheel cap 4.
3 covered.
【００２８】ハブ３６のカバー部４２は、図３にも示す
ように、パワーユニット１３Ｌを外側から覆う椀状に形
成されると共に、その外周縁の端部がボス部４１の軸方
向内側端より車椅子１の幅方向内側に向かって延設さ
れ、後輪８Ｌの幅方向中心がパワーユニット１３Ｌと重
なるように形成される。そして、カバー部４２外周縁の
延設部分に前記スポーク３９が取り付けられる。As shown in FIG. 3, the cover 42 of the hub 36 is formed in a bowl shape that covers the power unit 13L from the outside, and the end of the outer peripheral edge of the cover 42 is in the wheelchair than the axially inner end of the boss 41. The rear wheel 8L is formed so as to extend inward in the width direction so that the center of the rear wheel 8L in the width direction overlaps with the power unit 13L. Then, the spoke 39 is attached to an extended portion of the outer peripheral edge of the cover portion 42.
【００２９】ところで、車椅子１はその夜間の視認性を
高めることが求められる。そこで、本発明においては上
記ホイルキャップ４３の外表面が反射部材で形成され
る。また、ホイルキャップ４３そのものを例えば硫化亜
鉛や硫化バリウム、硫化カルシウムなどの蛍光物質また
は蓄光物質を加えて成形した発光プラスチック樹脂で形
成してもよい。By the way, the wheelchair 1 is required to enhance the night visibility. Therefore, in the present invention, the outer surface of the foil cap 43 is formed of a reflective member. Alternatively, the foil cap 43 itself may be formed of a luminescent plastic resin formed by adding a fluorescent substance or a phosphorescent substance such as zinc sulfide, barium sulfide, or calcium sulfide.
【００３０】次に、本実施形態の作用について説明す
る。Next, the operation of the present embodiment will be described.
【００３１】後輪８Ｌを構成するハブ３６のカバー部４
２を、パワーユニット１３Ｌを外側から覆う椀状に形成
したことにより車椅子１の外観が向上すると共に、後輪
軸２３に締着されるボス部４１周辺に路面の埃や泥がか
かり難くなり、耐久性が向上する。The cover 4 of the hub 36 constituting the rear wheel 8L
By forming the power unit 13 in a bowl shape that covers the power unit 13L from the outside, the appearance of the wheelchair 1 is improved, and the dust and mud on the road surface are less likely to be applied around the boss portion 41 fastened to the rear wheel axle 23. Is improved.
【００３２】また、カバー部４２外周縁の端部をボス部
４１の軸方向内側端より車椅子１の幅方向内側に向かっ
て延設して後輪８Ｌの幅方向中心がパワーユニット１３
Ｌと重なるように形成したことにより車椅子１が車幅方
向でコンパクトになる。The outer edge of the cover 42 extends from the axially inner end of the boss 41 toward the widthwise inside of the wheelchair 1 so that the center of the rear wheel 8L in the width direction is the power unit 13.
The wheelchair 1 is made compact in the vehicle width direction by being formed so as to overlap with L.
【００３３】さらに、ボス部４１の締着部分をホイルキ
ャップ４３によって覆うことにより外観が向上すると共
に、このホイルキャップ４３の外表面を反射部材で形成
したり、またはホイルキャップ４３そのものを発光性の
樹脂で形成したりすれば部品点数や組付け工程数の増加
を招くことなく車椅子１の夜間における視認性を向上さ
せることができる。なお、ホイルキャップ４３の外表面
に発光性または反射性を有する塗料を塗布してもよい。Further, the external appearance is improved by covering the fastening portion of the boss portion 41 with the foil cap 43, and the outer surface of the foil cap 43 is formed of a reflecting member, or the foil cap 43 itself is made of a light emitting material. If it is formed of resin, the visibility of the wheelchair 1 at night can be improved without increasing the number of parts and the number of assembly steps. Note that a light-emitting or reflective paint may be applied to the outer surface of the foil cap 43.
【００３４】[0034]
【発明の効果】以上説明したように、本発明に係る電動
式車椅子によれば、左右一対の枠体を備え、車幅方向内
側に向かって折り畳み可能に構成された車椅子におい
て、上記枠体の後下部に左右一対の駆動輪を設け、これ
らの駆動輪の内側に電動モータを内装したパワーユニッ
トをそれぞれ設けると共に、上記パワーユニットから上
記車椅子の幅方向外側に向かって突出する駆動輪軸に上
記駆動輪を軸着する一方、上記駆動輪はハブと、タイヤ
と、このタイヤのリムとハブとの間に張設されるスポー
クとを有し、上記ハブを上記駆動輪軸に締着されるボス
部と、このボス部の外周縁に形成されるカバー部とから
構成すると共に、上記カバー部を、上記パワーユニット
を外側から覆う椀状に形成したため、上記車椅子の外観
が向上すると共に、耐久性も向上する。As described above, according to the electric wheelchair according to the present invention, in a wheelchair provided with a pair of left and right frames and configured to be foldable inward in the vehicle width direction, A pair of left and right drive wheels are provided at the lower rear, and a power unit equipped with an electric motor is provided inside these drive wheels, and the drive wheels are mounted on a drive wheel shaft projecting outward from the power unit toward the width direction of the wheelchair. On the other hand, the driving wheel has a hub, a tire, and a spoke that is stretched between a rim and a hub of the tire, and a boss portion that fastens the hub to the driving wheel shaft. In addition to the cover portion formed on the outer peripheral edge of the boss portion, and the cover portion is formed in a bowl shape that covers the power unit from the outside, the appearance of the wheelchair is improved, Durability is also improved.
【００３５】また、上記カバー部外周縁の端部を上記ボ
ス部の軸方向内側端より上記車椅子の幅方向内側に向か
って延設して上記駆動輪の幅方向中心が上記パワーユニ
ットと重なるように形成したため、上記車椅子が車幅方
向でコンパクトになる。Further, the end of the outer peripheral edge of the cover portion extends from the axially inner end of the boss portion toward the inside in the width direction of the wheelchair so that the center of the drive wheel in the width direction overlaps with the power unit. Due to the formation, the wheelchair becomes compact in the vehicle width direction.
【００３６】さらに、上記ボス部の上記駆動輪軸への締
着部分をホイルキャップで覆うと共に、上記ホイルキャ
ップの外表面を反射部材で形成したため、上記車椅子の
外観が向上すると共に、夜間の視認性も向上する。Further, the portion of the boss portion fastened to the drive wheel axle is covered with a foil cap, and the outer surface of the wheel cap is formed of a reflective member, so that the appearance of the wheelchair is improved and night visibility is improved. Also improve.
【００３７】さらにまた、上記ボス部の上記駆動輪軸へ
の締着部分をホイルキャップで覆うと共に、上記ホイル
キャップを発光性の樹脂で形成したため、上記車椅子の
外観が向上すると共に、夜間の視認性も向上する。Further, the portion of the boss portion to be fastened to the drive wheel axle is covered with a wheel cap, and the wheel cap is formed of a luminescent resin, so that the appearance of the wheelchair is improved and night visibility is improved. Also improve.
【図１】本発明に係る電動式車椅子の一実施形態を示す
左側面図。FIG. 1 is a left side view showing an embodiment of an electric wheelchair according to the present invention.
【図２】図１に示す電動式車椅子の後面（背面）図。FIG. 2 is a rear (rear) view of the electric wheelchair shown in FIG.
【図３】図２のＩＩＩ矢視図。FIG. 3 is a view taken in the direction of the arrow III in FIG. 2;
【図４】図３のＩＶ−ＩＶ線に沿う断面図。FIG. 4 is a sectional view taken along the line IV-IV in FIG. 3;
１ 電動式車椅子 ２Ｌ，２Ｒ 枠体 ８Ｌ，８Ｒ 後輪（駆動輪） １２Ｌ，１２Ｒ 電動モータ １３Ｌ，１３Ｒ パワーユニット ２３ 後輪軸（駆動輪軸） ３６ ハブ ３７ タイヤ ３８ リム ３９ スポーク ４１ ハブのボス部 ４２ ハブのカバー部 ４３ ホイルキャップ Reference Signs List 1 electric wheelchair 2L, 2R frame 8L, 8R rear wheel (drive wheel) 12L, 12R electric motor 13L, 13R power unit 23 rear wheel axle (drive wheel axle) 36 hub 37 tire 38 rim 39 spoke 41 hub boss 42 hub Cover part 43 Wheel cap
Claims (4)
向かって折り畳み可能に構成された車椅子において、上
記枠体の後下部に左右一対の駆動輪を設け、これらの駆
動輪の内側に電動モータを内装したパワーユニットをそ
れぞれ設けると共に、上記パワーユニットから上記車椅
子の幅方向外側に向かって突出する駆動輪軸に上記駆動
輪を軸着する一方、上記駆動輪はハブと、タイヤと、こ
のタイヤのリムとハブとの間に張設されるスポークとを
有し、上記ハブを上記駆動輪軸に締着されるボス部と、
このボス部の外周縁に形成されるカバー部とから構成す
ると共に、上記カバー部を、上記パワーユニットを外側
から覆う椀状に形成したことを特徴とする電動式車椅
子。1. A wheelchair provided with a pair of left and right frame bodies and configured to be foldable inward in the vehicle width direction, a pair of left and right drive wheels is provided at a lower rear portion of the frame body, and the inside of these drive wheels is provided. A power unit having an electric motor mounted therein, and the drive wheel is mounted on a drive wheel axle projecting outward from the power unit in the width direction of the wheelchair, while the drive wheel is a hub, a tire, and a tire. A boss portion having a spoke stretched between the rim and the hub, the hub being fastened to the drive wheel axle;
An electric wheelchair, comprising: a cover portion formed on an outer peripheral edge of the boss portion; and the cover portion is formed in a bowl shape that covers the power unit from outside.
の軸方向内側端より上記車椅子の幅方向内側に向かって
延設して上記駆動輪の幅方向中心が上記パワーユニット
と重なるように形成した請求項１記載の電動式車椅子。2. An end portion of an outer peripheral edge of the cover portion extends from an axially inner end of the boss portion toward a widthwise inside of the wheelchair so that a center of the drive wheel in a width direction overlaps with the power unit. The electric wheelchair according to claim 1 formed.
をホイルキャップで覆うと共に、上記ホイルキャップの
外表面を反射部材で形成した請求項１または２記載の電
動式車椅子。3. The electric wheelchair according to claim 1, wherein a portion of the boss portion fastened to the drive wheel axle is covered with a wheel cap, and an outer surface of the wheel cap is formed of a reflecting member.
をホイルキャップで覆うと共に、上記ホイルキャップを
発光性の樹脂で形成した請求項１または２記載の電動式
車椅子。4. The electric wheelchair according to claim 1, wherein a portion of the boss portion fastened to the drive wheel axle is covered with a wheel cap, and the wheel cap is formed of a luminescent resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001125695A JP2002315789A (en) | 2001-04-24 | 2001-04-24 | Motor-driven wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001125695A JP2002315789A (en) | 2001-04-24 | 2001-04-24 | Motor-driven wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002315789A true JP2002315789A (en) | 2002-10-29 |
Family
ID=18974866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001125695A Pending JP2002315789A (en) | 2001-04-24 | 2001-04-24 | Motor-driven wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002315789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007111378A (en) * | 2005-10-21 | 2007-05-10 | Honda Motor Co Ltd | Small vehicle |
-
2001
- 2001-04-24 JP JP2001125695A patent/JP2002315789A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007111378A (en) * | 2005-10-21 | 2007-05-10 | Honda Motor Co Ltd | Small vehicle |
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