JP5335206B2 - Electric vehicle traveling device - Google Patents

Electric vehicle traveling device Download PDF

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JP5335206B2
JP5335206B2 JP2007168801A JP2007168801A JP5335206B2 JP 5335206 B2 JP5335206 B2 JP 5335206B2 JP 2007168801 A JP2007168801 A JP 2007168801A JP 2007168801 A JP2007168801 A JP 2007168801A JP 5335206 B2 JP5335206 B2 JP 5335206B2
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wheel
tandem
electric vehicle
connecting member
guide
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JP2009006792A (en
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浩 清水
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株式会社クリーンクラフト
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries

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Description

本発明は、少なくとも前輪にタンデムホイールを備えた電気自動車の走行装置に関するものである。   The present invention relates to a traveling device for an electric vehicle having a tandem wheel at least on a front wheel.

駆動モータ用の電源である蓄電池を床下に収納する形式の電気自動車（下記特許文献１参照）においては、床面が電池の上に形成されるため、通常の自動車に比して蓄電池の分床面が高くなるという問題がある。そこで、床面を低くするため、前後輪をタンデムホイールとして車輪の径を小さくし、それによって車両の床面を低くする方式が提案されている。
特開２００４−１７３７号公報 In an electric vehicle (see Patent Document 1 below) in which a storage battery, which is a power source for a drive motor, is stored under the floor, the floor is formed on the battery. There is a problem that the surface becomes high. Therefore, in order to lower the floor surface, a method has been proposed in which the front and rear wheels are tandem wheels to reduce the wheel diameter, thereby lowering the floor surface of the vehicle.
JP 2004-1737 A

しかしながら、車輪の径を小さくすると、道路の凹凸や段差を乗り越える際の衝撃が大きく、さらに段差が大きい場合には乗り越え難いという問題があった。特に一人乗り等のミニサイズの電気自動車にタンデムホイールを採用した場合、床面が低くなると共に重心を低くできるので、安定性が増すという効果を得ることができる一方で、車輪径が小さくなるので、段差が少し高くなると乗り越えが困難になるという問題があった。   However, when the wheel diameter is reduced, there is a problem that the impact when climbing over unevenness and steps on the road is large, and it is difficult to get over when the step is large. In particular, when a tandem wheel is used in a mini-size electric vehicle such as a single-seater, the floor can be lowered and the center of gravity can be lowered, so that the effect of increasing stability can be obtained, while the wheel diameter is reduced. There was a problem that it was difficult to get over when the level difference was a little high.

本発明は、タンデムホイールを備えた電気自動車の走行装置において、車輪の径を小さくすることによって床面を低くし、かつ、重心を低くして車両の走行安定性を向上させると共に、段差等に遭遇した場合にも、段差等を容易に乗り越えることができる電気自動車の走行装置を提供することを目的とする。   The present invention relates to a traveling device for an electric vehicle equipped with a tandem wheel, which lowers the floor surface by reducing the diameter of the wheel, and lowers the center of gravity to improve the traveling stability of the vehicle, and to increase the level difference. An object of the present invention is to provide a traveling device for an electric vehicle that can easily get over a step or the like even when it encounters.

本発明は、上記目的を達成するために、
〔１〕電気自動車の走行装置において、少なくとも前輪部をタンデムホイールとすると共に、このタンデムホイールの前々輪の前部上方に、車輪又はクローラからなる段差乗越え用誘導回転体を設け、かつこの誘導回転体は車体に支持され、この誘導回転体を回転させる駆動装置を備え、前記タンデムホイールは、前記前々輪（２ａ）と前後輪（２ｂ）が剛性の連結部材（１２）で連結されており、該連結部材（１２）を回転可能に車体側に支持する回転軸（２０）は、該回転軸（２０）と前記前々輪（２ａ）を支持する車輪支持軸（１５ａ）との間隔が、該回転軸（２０）と前記前後輪（２ｂ）を支持する車輪支持軸（１５ｂ）との間隔より短くなる位置に設け、前記段差乗越え誘導回転体が段差に乗り上げたとき、前記連結部材（１２）前後の荷重配分により発生するモーメントにより、前記連結部材（１２）は前記前々輪（２ａ）を先に上げる方向に回動させることを特徴とする。 In order to achieve the above object, the present invention provides
[1] In a traveling apparatus for an electric vehicle, at least the front wheel portion is a tandem wheel, and a step hopping induction rotating body including a wheel or a crawler is provided above the front portion of the front wheel of the tandem wheel. rotating body is supported by the vehicle body, a drive device for rotating the induction rotator, the tandem wheel, the second previous wheel (2a) and the front and rear wheels (2b) are connected by a connecting member rigid (12) The rotating shaft (20) that rotatably supports the connecting member (12) on the vehicle body side is formed between the rotating shaft (20) and a wheel support shaft (15a) that supports the front wheel (2a). When the distance between the rotating shaft (20) and the wheel support shaft (15b) supporting the front and rear wheels (2b) is shorter than the distance between the rotating shaft (20) and the wheel support shaft (15b), Member (12) The moment generated by the load distribution after, the connecting member (12) is characterized in that to rotating in a direction to raise above the second previous wheel (2a).

よって、電気自動車が段差に遭遇して誘導回転体が段差面に当たると、誘導回転体の駆動力により誘導回転体が段差上に乗り上げ、車体を持ち上げながら前進するため、タンデムホイールの前々輪が段差を容易に乗り越えることができる。
また、タンデムホイールの前々輪と前後輪が剛性の連結部材で連結され、連結部材が前々輪を上方に回転できるように車体側に支持されているので、前々輪が前後輪に先行して持ち上げられ、段差を容易に乗り越えることができる。 Therefore, when the electric vehicle encounters a step and the guide rotator hits the step surface, the induction rotator rides on the step by the driving force of the guide rotator and moves forward while lifting the vehicle body. You can easily get over the steps.
In addition, the front wheel and front and rear wheels of the tandem wheel are connected by a rigid connecting member, and the connecting member is supported on the vehicle body side so that the front wheel can rotate upward, so the front wheel precedes the front and rear wheels. Can be lifted and can easily get over the steps.

本発明の電気自動車の走行装置は、駆動装置を備えた誘導回転体を前々輪の前上部に設けているので、小径のタンデムホイールを用いても、段差を容易に乗り越えることができる。   In the electric vehicle traveling device of the present invention, since the induction rotating body having the driving device is provided at the front upper part of the front-end wheel, the step can be easily overcome even if a small-diameter tandem wheel is used.

本発明の電気自動車の走行装置において、少なくとも前輪部をタンデムホイールとすると共に、このタンデムホイールの前々輪の前部上方に、車輪又はクローラからなる段差乗越え用誘導回転体を設け、かつこの誘導回転体は車体に支持され、この誘導回転体を回転させる駆動装置を備え、前記タンデムホイールは、前記前々輪（２ａ）と前後輪（２ｂ）が剛性の連結部材（１２）で連結されており、該連結部材（１２）を回転可能に車体側に支持する回転軸（２０）は、該回転軸（２０）と前記前々輪（２ａ）を支持する車輪支持軸（１５ａ）との間隔が、該回転軸（２０）と前記前後輪（２ｂ）を支持する車輪支持軸（１５ｂ）との間隔より短くなる位置に設け、前記段差乗越え誘導回転体が段差に乗り上げたとき、前記連結部材（１２）前後の荷重配分により発生するモーメントにより、前記連結部材（１２）が前々輪（２ａ）を先に上げる方向に回動させる。 In the traveling apparatus for an electric vehicle of the present invention, at least the front wheel portion is a tandem wheel, and a step-overhead induction rotating body including a wheel or a crawler is provided above the front portion of the front wheel of the tandem wheel. rotating body is supported by the vehicle body, a drive device for rotating the induction rotator, the tandem wheel, the second previous wheel (2a) and the front and rear wheels (2b) are connected by a connecting member rigid (12) The rotating shaft (20) that rotatably supports the connecting member (12) on the vehicle body side is formed between the rotating shaft (20) and a wheel support shaft (15a) that supports the front wheel (2a). When the distance between the rotating shaft (20) and the wheel support shaft (15b) supporting the front and rear wheels (2b) is shorter than the distance between the rotating shaft (20) and the wheel support shaft (15b), Member (12 The moment generated by the front and rear load distribution, the connecting member (12) is direction rotation causes to raise above the before last wheel (2a).

以下、本発明の実施の形態について詳細に説明する。
図１は本発明の第１実施例を示す誘導車輪及びタンデムホイールを備えた一人乗りミニサイズの電気自動車の全体模式図であり、図２は図１に示す電気自動車の誘導車輪及び前輪部のタンデムホイールの懸架構造を示す模式図である。
図１において、ミニサイズの電気自動車１は前輪部にタンデムホイールを構成する前々輪２ａ及び前後輪２ｂを、後輪部にタンデムホイールを構成する後前輪２ｃ及び後々輪２ｄを備えており、前々輪２ａの前部上方に誘導回転体である誘導車輪３を備えている。また、４はステアリングホイール、５は運転者用の座席であり、６は車体である。 Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is an overall schematic diagram of a single-seater mini-size electric vehicle equipped with induction wheels and tandem wheels according to a first embodiment of the present invention, and FIG. 2 is a diagram of induction wheels and front wheel portions of the electric vehicle shown in FIG. It is a schematic diagram which shows the suspension structure of a tandem wheel.
In FIG. 1, a mini-size electric vehicle 1 includes a front wheel 2a and front and rear wheels 2b constituting a tandem wheel at a front wheel portion, and a rear front wheel 2c and a rear wheel 2d constituting a tandem wheel at a rear wheel portion, An induction wheel 3 that is an induction rotating body is provided above the front portion of the front-to-front wheel 2a. Reference numeral 4 denotes a steering wheel, 5 denotes a driver's seat, and 6 denotes a vehicle body.

次に、誘導車輪３の懸架機構及び前輪部のタンデムホイールを構成する前々輪２ａ及び前後輪２ｂの懸架機構について、図２を用いて説明する。
図２において、誘導車輪３は、一端が車体６に軸支された誘導車輪支持部材７に回転可能に支持されており、内側にインホイールモータ８を収納している。９は誘導車輪３が段差等に当たった際の衝撃を緩衝する緩衝装置である。 Next, the suspension mechanism of the front wheel 2a and the front and rear wheels 2b constituting the suspension mechanism of the guide wheel 3 and the tandem wheel of the front wheel portion will be described with reference to FIG.
In FIG. 2, one end of the guide wheel 3 is rotatably supported by a guide wheel support member 7 pivotally supported on the vehicle body 6, and an in-wheel motor 8 is accommodated inside. Reference numeral 9 denotes a shock absorber that cushions an impact when the guide wheel 3 hits a step or the like.

１０は車体６に取り付けられたスイッチであって、誘導車輪３が段差に当たり、誘導車輪支持部材７が緩衝装置９に抗して後方に変位すると、スイッチ１０が作動してインホイールモータ８が回転し、誘導車輪３が段差を乗り越える方向に駆動される。
１１は前輪部のタンデムホイール懸架装置であって、連結部材１２と揺動部材１３とサスペンションスプリングを備えた緩衝装置１４から構成されている。 Reference numeral 10 denotes a switch attached to the vehicle body 6. When the guide wheel 3 hits a step and the guide wheel support member 7 is displaced rearward against the shock absorber 9, the switch 10 is activated to rotate the in-wheel motor 8. Then, the guide wheel 3 is driven in a direction over the step.
Reference numeral 11 denotes a tandem wheel suspension device for a front wheel portion, which is composed of a coupling member 12, a swing member 13, and a shock absorber 14 provided with a suspension spring.

連結部材１２は、前々輪２ａと前後輪２ｂを連結する剛体の部材で、前部の車輪支持軸１５ａにはインホイールモータ１６ａを備えた前々輪２ａが回転自在に装着され、また、後部の車輪支持軸１５ｂにはインホイールモータ１６ｂを備えた前後輪２ｂが回転自在に装着されている。
揺動部材１３は、車体６に設けられたブラケット１７ａ及び１７ｂにピン１８ａ及び１８ｂにより、ピン１８ａ及び１８ｂの周りに揺動可能に支持されている。 The connecting member 12 is a rigid member that connects the front wheel 2a and the front and rear wheels 2b. The front wheel 2a having an in-wheel motor 16a is rotatably mounted on the front wheel support shaft 15a. Front and rear wheels 2b having an in-wheel motor 16b are rotatably mounted on the rear wheel support shaft 15b.
The swing member 13 is supported by brackets 17a and 17b provided on the vehicle body 6 by pins 18a and 18b so as to be swingable around the pins 18a and 18b.

揺動部材１３の外側に設けられた嵌合部１９には、連結部材１２に設けられた回転軸２０が嵌合しており、連結部材１２は揺動部材１３に対して回転軸２０を中心に回転可能になっている。
なお、回転軸２０は、回転軸２０と前部の車輪支持軸１５ａとの間隔が、回転軸２０と後部の車輪支持軸１５ｂとの間隔より短くなる位置に設けられているため、連結部材１２に時計回りのモーメントが働く。そのため、車体６が持ち上げられることにより回転軸２０が上方に移動すると、前々輪２ａが前後輪２ｂより先に持ち上がるようになっている。 A rotating shaft 20 provided on the connecting member 12 is fitted into the fitting portion 19 provided on the outside of the swinging member 13, and the connecting member 12 is centered on the rotating shaft 20 with respect to the swinging member 13. It can be rotated.
The rotating shaft 20 is provided at a position where the distance between the rotating shaft 20 and the front wheel support shaft 15a is shorter than the distance between the rotating shaft 20 and the rear wheel support shaft 15b. A clockwise moment works. Therefore, when the rotating shaft 20 moves upward by lifting the vehicle body 6, the front wheel 2a is lifted ahead of the front and rear wheels 2b.

また、サスペンションスプリングを備えた緩衝装置１４は、揺動部材１３と車体６の適当な部位との間に設けられ、前々輪２ａ及び前後輪２ｂに加わる路面からの振動を緩和する。
次いで、ミニサイズの電気自動車１が段差にさしかかった際の段差乗り越えの動作について説明する。 Further, the shock absorber 14 including the suspension spring is provided between the swinging member 13 and an appropriate part of the vehicle body 6, and relieves vibration from the road surface applied to the front wheel 2a and the front and rear wheels 2b.
Next, the operation of overcoming the step when the mini-sized electric vehicle 1 approaches the step will be described.

誘導車輪３が段差Ａに当たると、誘導車輪３は段差の角部に当たって後方に押されるため、スイッチ１０がＯＮになり、蓄電池（図示なし）から電流が供給されたインホイールモータ８が駆動され、誘導車輪３が段差Ａの上に乗り上げる。すると、誘導車輪３の段差Ａへの乗り上げにより車体６の前部が持ち上げられるので、揺動部材１３を介して連結部材１２が持ち上げられる。その際、上記したように連結部材１２の回転軸２０は、回転軸２０と前々輪２ａの車輪支持軸１５ａとの間隔が前後輪２ｂの車輪支持軸１５ｂとの間隔より短く設定されているので、前々輪２ａが先に持ち上げられる。そのため、前々輪２ａに対する段差Ａの高さが実質的に減少し、前々輪２ａが段差Ａに乗り上げることができ、続いて前後輪２ｂを乗り上げることができる。   When the guide wheel 3 hits the step A, the guide wheel 3 hits the corner of the step and is pushed backward, so the switch 10 is turned on and the in-wheel motor 8 supplied with current from the storage battery (not shown) is driven, The guide wheel 3 rides on the step A. Then, since the front part of the vehicle body 6 is lifted by the ride on the step A of the guide wheel 3, the connecting member 12 is lifted via the swing member 13. At that time, as described above, the rotation shaft 20 of the connecting member 12 is set such that the distance between the rotation shaft 20 and the wheel support shaft 15a of the front wheel 2a is shorter than the distance between the wheel support shaft 15b of the front and rear wheels 2b. Therefore, the front wheel 2a is lifted first. Therefore, the height of the step A with respect to the front wheel 2a is substantially reduced, so that the front wheel 2a can ride on the step A, and then the front and rear wheels 2b can ride.

なお、後輪部のタンデムホイールである後前輪２ｃ及び後々輪２ｄの懸架装置については図示していないが、前輪部と同一の懸架装置を用いてもよく、また、後前輪及び後々輪にそれぞれ独立した懸架装置を用いてもよい。
次に、第２実施例について図３及び図４を用いて説明する。
図３は本発明の第２実施例を示す誘導用クローラ及びタンデムホイールを備えた一人乗りミニサイズの電気自動車の全体模式図、図４は図３に示す電気自動車の誘導用クローラ及び前輪部のタンデムホイールの懸架構造を示す模式図である。 The suspension device for the rear front wheel 2c and the rear wheel 2d, which are tandem wheels in the rear wheel portion, is not shown, but the same suspension device as that for the front wheel portion may be used. An independent suspension may be used.
Next, a second embodiment will be described with reference to FIGS.
FIG. 3 is an overall schematic diagram of a single-seater mini-size electric vehicle equipped with a guide crawler and a tandem wheel according to a second embodiment of the present invention. FIG. 4 is a diagram of the guide crawler and front wheel portion of the electric vehicle shown in FIG. It is a schematic diagram which shows the suspension structure of a tandem wheel.

第２実施例は、第１実施例の誘導車輪３をクローラに変えたものであり、その他の部分は第１実施例と同一であるので、誘導用クローラの部分を中心に説明する。なお、第１実施例と同一の部分については同一の符号を付して説明は省略している。
図３において、１０１はミニサイズの電気自動車であって、タンデムホイール式の前々輪２ａ及び前後輪２ｂ、後前輪２ｃ及び後々輪２ｄを備えている。 In the second embodiment, the guide wheel 3 of the first embodiment is changed to a crawler, and the other portions are the same as those of the first embodiment, so the description will focus on the portion of the guide crawler. In addition, the same code | symbol is attached | subjected about the part same as 1st Example, and description is abbreviate | omitted.
In FIG. 3, reference numeral 101 denotes a mini-size electric vehicle, which includes a tandem wheel type front-and-rear wheel 2a and front and rear wheels 2b, a rear front wheel 2c and a rear and rear wheel 2d.

１０３は、誘導回転体である誘導用クローラであり、連結支持部材１０７の支持軸１０８に軸支されたアイドラー１０９、及び駆動軸１１０に固定されたスプロケット１１１が設けられており、アイドラー１０９及びスプロケット１１１の外周にはゴム製の履帯１１２が装架されている。１１３はガイドローラーである。
１１４は駆動用モータであって、誘導用クローラ１０３が段差Ａに乗り上げ、スイッチ（図示なし）が作動するとスプロケット１１１を駆動する。また、連結支持部材１０７はリンク部材１１５及び１１６によって車体１０６に連結されている。 Reference numeral 103 denotes a guide crawler that is a guide rotator, and includes an idler 109 that is pivotally supported on the support shaft 108 of the connection support member 107 and a sprocket 111 that is fixed to the drive shaft 110. A rubber crawler belt 112 is mounted on the outer periphery of 111. 113 is a guide roller.
Reference numeral 114 denotes a drive motor, which drives the sprocket 111 when the guide crawler 103 rides on the step A and a switch (not shown) is activated. Further, the connection support member 107 is connected to the vehicle body 106 by link members 115 and 116.

なお、前々輪２ａ及び前後輪２ｂを懸架するタンデムホイール懸架装置１１の構造は第１実施例と同一であるので、説明を省略する。
次に、第２実施例の誘導用クローラ１０３を備えたミニサイズの電気自動車１０１の段差乗り越え動作について説明する。
誘導用クローラ１０３が段差に当たると、駆動用モータ１１４が作動し、駆動軸１１０を介してスプロケット１１１が回転して履帯１１２を回動させ、誘導用クローラ１０３が段差Ａに乗り上げることができる。 In addition, since the structure of the tandem wheel suspension apparatus 11 which suspends the front wheel 2a and the front-and-rear wheel 2b is the same as that of the first embodiment, the description thereof is omitted.
Next, the step-over operation of the mini size electric vehicle 101 provided with the guide crawler 103 of the second embodiment will be described.
When the guide crawler 103 hits the step, the drive motor 114 operates, the sprocket 111 rotates via the drive shaft 110 and the crawler belt 112 rotates, and the guide crawler 103 can ride on the step A.

誘導用クローラ１０３が段差Ａへ乗り上がることにより車体１０６の前部が上方に持ち上げられると、第１実施例で説明したとおり、揺動部材１３を介して連結部材１２が持ち上げられ、前々輪２ａが前後輪２ｂに先行して持ち上げられる。その結果、前々輪２ａに対する段差Ａの高さが実質的に減少し、前々輪２ａが段差Ａに乗り上げることができ、続いて前後輪２ｂが乗り上げることができる。   When the front part of the vehicle body 106 is lifted upward by the guide crawler 103 climbing on the step A, the connecting member 12 is lifted via the swinging member 13 as described in the first embodiment, and the front wheel 2a is lifted ahead of the front and rear wheels 2b. As a result, the height of the step A with respect to the front wheel 2a is substantially reduced, so that the front wheel 2a can ride on the step A, and then the front and rear wheels 2b can ride.

なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能であり、これらを本発明の範囲から排除するものではない。   In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.

本発明の電気自動車の走行装置は、駆動装置を備えた誘導回転体を前々輪の前部上方に設けているので、小径のタンデムホイールを用いても、段差を容易に乗り越えることができる電気自動車の走行装置として利用可能である。   In the electric vehicle traveling device of the present invention, the induction rotating body having the driving device is provided above the front part of the front-end wheel, so that even if a small-diameter tandem wheel is used, it is possible to easily get over the step. It can be used as an automobile traveling device.

本発明の第１実施例を示す誘導車輪及びタンデムホイールを備えた一人乗りミニサイズの電気自動車の全体模式図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an overall schematic diagram of a single-seater mini-size electric vehicle including a guide wheel and a tandem wheel according to a first embodiment of the present invention. 図１に示す電気自動車の誘導車輪及び前輪部のタンデムホイールの懸架構造を示す模式図である。It is a schematic diagram which shows the suspension structure of the induction wheel of the electric vehicle shown in FIG. 1, and the tandem wheel of a front wheel part. 本発明の第２実施例を示す誘導用クローラ及びタンデムホイールを備えた一人乗りミニサイズの電気自動車の全体模式図である。It is a whole schematic diagram of the single-seater mini size electric vehicle provided with the guide crawler and the tandem wheel according to the second embodiment of the present invention. 図３に示す電気自動車の誘導用クローラ及び前輪部のタンデムホイールの懸架構造を示す模式図である。It is a schematic diagram which shows the suspension structure of the crawler for induction | guidance | derivation of the electric vehicle shown in FIG. 3, and the tandem wheel of a front wheel part.

１，１０１ ミニサイズの電気自動車
２ａ 前々輪
２ｂ 前後輪
２ｃ 後前輪
２ｄ 後々輪
３ 誘導車輪
４ ステアリングホイール
５ 座席
６，１０６ 車体
７ 誘導車輪支持部材
８ インホイールモータ
９ 緩衝装置
１０ スイッチ
１１ 前輪部のタンデムホイール懸架装置
１２ 連結部材
１３ 揺動部材
１４ 緩衝装置
１５ａ，１５ｂ 車輪支持軸
１６ａ，１６ｂ インホイールモータ
１７ａ，１７ｂ ブラケット
１８ａ，１８ｂ ピン
１９ 嵌合部
２０ 回転軸
１０３ 誘導用クローラ
１０７ 連結支持部材
１０８ 支持軸
１０９ アイドラー
１１０ 駆動軸
１１１ スプロケット
１１２ 履帯
１１３ ガイドローラー
１１４ 駆動用モータ
１１５，１１６ リンク部材 DESCRIPTION OF SYMBOLS 1,101 Mini-sized electric vehicle 2a Front wheel 2b Front and rear wheel 2c Rear front wheel 2d Rear wheel 3 Guide wheel 4 Steering wheel 5 Seat 6,106 Car body 7 Guide wheel support member 8 In-wheel motor 9 Shock absorber 10 Switch 11 Front wheel part Tandem wheel suspension device 12 Connecting member 13 Oscillating member 14 Shock absorber 15a, 15b Wheel support shaft 16a, 16b In-wheel motor 17a, 17b Bracket 18a, 18b Pin 19 Fitting portion 20 Rotating shaft 103 Guide crawler 107 Connection support member 108 support shaft 109 idler 110 drive shaft 111 sprocket 112 crawler track 113 guide roller 114 drive motor 115, 116 link member

Claims (1)

少なくとも前輪部をタンデムホイールとすると共に、該タンデムホイールの前々輪の前部上方に、車輪又はクローラからなる段差乗越え用誘導回転体を設け、かつ該誘導回転体は車体に支持され、該誘導回転体を回転させる駆動装置を備え、前記タンデムホイールは、前記前々輪（２ａ）と前後輪（２ｂ）が剛性の連結部材（１２）で連結されており、該連結部材（１２）を回転可能に車体側に支持する回転軸（２０）は、該回転軸（２０）と前記前々輪（２ａ）を支持する車輪支持軸（１５ａ）との間隔が、該回転軸（２０）と前記前後輪（２ｂ）を支持する車輪支持軸（１５ｂ）との間隔より短くなる位置に設け、前記段差乗越え誘導回転体が段差に乗り上げたとき、前記連結部材（１２）前後の荷重配分により発生するモーメントにより、前記連結部材（１２）は前記前々輪（２ａ）を先に上げる方向に回動させることを特徴とする電気自動車の走行装置。 At least the front wheel as well as a tandem wheel, the front upper before last wheels of the tandem wheel, provided with a step climb over for inducing rotary body consisting of a wheel or crawler, and the induction rotating body is supported by the vehicle body, the The tandem wheel includes a driving device that rotates an induction rotating body, and the front wheel (2a) and the front and rear wheels (2b) are connected by a rigid connecting member (12), and the connecting member (12) The rotation shaft (20) that is rotatably supported on the vehicle body side has an interval between the rotation shaft (20) and the wheel support shaft (15a) that supports the front wheel (2a). It is provided at a position that is shorter than the distance from the wheel support shaft (15b) that supports the front and rear wheels (2b), and is generated due to load distribution before and after the connecting member (12) when the step climbing induction rotating body rides on the step. Depending on the moment , The connecting member (12) is traveling device for an electric vehicle, characterized in that to rotating in a direction to raise above the second previous wheel (2a).
JP2007168801A 2007-06-27 2007-06-27 Electric vehicle traveling device Expired - Fee Related JP5335206B2 (en)

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