JP2007182137A - Multi-axle drive snowmobile - Google Patents

Multi-axle drive snowmobile Download PDF

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JP2007182137A
JP2007182137A JP2006001527A JP2006001527A JP2007182137A JP 2007182137 A JP2007182137 A JP 2007182137A JP 2006001527 A JP2006001527 A JP 2006001527A JP 2006001527 A JP2006001527 A JP 2006001527A JP 2007182137 A JP2007182137 A JP 2007182137A
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track belts
snow vehicle
vehicle body
steering
crawler mechanism
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Yasuaki Yatagai
泰章 矢田貝
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Suzuki Motor Corp
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Suzuki Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a multi-axle drive snowmobile capable of independently driving two track belts by a simple structure. <P>SOLUTION: In this snowmobile 1, a saddle-riding type driving seat is provided in a rear upper part of a vehicle body, a crawler mechanism 4 is arranged in a lower side of the driving seat, a pair of right and left skids 2 for steering are provided in a front lower part of the vehicle body, and a steering wheel for operating the skids 2 is provided in front of the driving seat. The crawler mechanism 4 is provided with a pair of right and left track belts 9. Each of the track belts 9 is constituted to be independently driven by using a plurality of electric motors 18. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、多軸駆動雪上車に関する。   The present invention relates to a multi-axis drive snow vehicle.

一般に雪上車は内燃機関で無限軌道であるトラックベルトを駆動して走行するように構成され、操舵は車体の前方に設けた操舵用スキーで行っている。   In general, a snow vehicle is configured to travel by driving a track belt that is an endless track with an internal combustion engine, and steering is performed by a steering ski provided in front of the vehicle body.

また、安定性や走行性を向上させるため、二本のトラックベルトを用いたものもある（例えば特許文献１および２参照）。
特開昭５４−５７７２８号公報 特開平４−７１９８２号公報 In addition, there are some that use two track belts in order to improve stability and running performance (see, for example, Patent Documents 1 and 2).
JP-A-54-57728 Japanese Patent Laid-Open No. 4-71982

しかしながら、二本のトラックベルトを一台の内燃機関でそれぞれ単独で駆動すること、いわゆる多軸駆動は雪上車の構造上困難である。また、各トラックベルトを独立駆動するために、限られたスペース内に内燃機関を二台置き、さらにこれらの回転を制御することも困難である。   However, it is difficult to drive two track belts independently with a single internal combustion engine, so-called multi-axis drive, because of the structure of a snow vehicle. In addition, in order to drive each track belt independently, it is difficult to place two internal combustion engines in a limited space and to control their rotation.

特に、雪上車は内燃機関のトルクの変動を、遠心クラッチを用いて伝動するため、内燃機関を動力源として多軸駆動を行うには各内燃機関に対して遠心クラッチが一台ずつ必要となり、これらの二軸の回転の制御は困難である。   In particular, since snow vehicles transmit torque fluctuations of an internal combustion engine using a centrifugal clutch, one centrifugal clutch is required for each internal combustion engine to perform multi-axis drive using the internal combustion engine as a power source. Control of the rotation of these two axes is difficult.

本発明は上述した事情を考慮してなされたもので、簡単な構造で二本のトラックベルトを独立駆動可能な多軸駆動雪上車を提供することを目的とする。   The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a multi-axis drive snow vehicle capable of independently driving two track belts with a simple structure.

本発明に係る多軸駆動雪上車は、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、車体後上部に鞍乗型の運転シートを備え、この運転シートの下方にクローラ機構を配置すると共に、車体の前下部に左右一対の操舵用スキッドを備え、上記運転シートの前方に上記操舵用スキッドを操作するステアリングハンドルを設けた雪上車において、上記クローラ機構は左右一対のトラックベルトを備え、これらのトラックベルトを複数の電動モータを用いてそれぞれ独立駆動可能に構成したものである。   In order to solve the above-described problem, a multi-axis drive snow vehicle according to the present invention includes a saddle-type driving seat at the rear upper part of the vehicle body, and a crawler mechanism below the driving seat. And a pair of left and right steering skids at the front lower part of the vehicle body, and a snow vehicle having a steering handle for operating the steering skids in front of the driving seat, the crawler mechanism is a pair of left and right track belts. These track belts can be independently driven using a plurality of electric motors.

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、上記電動モータを、上記左右のトラックベルトの間に、前後方向に縦列配置したものである。   Further, in order to solve the above-described problem, as described in claim 2, the electric motor is arranged in tandem in the front-rear direction between the left and right track belts.

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、上記電動モータを、上記左右のトラックベルトの前方に、上記クローラ機構に近接させて車体の幅方向に離間して並列配置したものである。   Further, in order to solve the above-described problem, as described in claim 3, the electric motor is arranged in front of the left and right track belts, in proximity to the crawler mechanism and spaced apart in the width direction of the vehicle body. It is arranged.

そして、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、上記左右のトラックベルト間の上記運転シート下方に電源を配置したものである。   And in order to solve the subject mentioned above, as described in Claim 4, the power supply is arrange | positioned under the said driving | running seat between the said left and right track belts.

さらにまた、上述した課題を解決するために、請求項５に記載したように、上記クローラ機構の後側に配置される従動輪の内部に電動モータを内蔵したものである。   Furthermore, in order to solve the above-described problem, as described in claim 5, an electric motor is built in a driven wheel disposed on the rear side of the crawler mechanism.

本発明に係る多軸駆動雪上車によれば、操縦性、旋回性、走行性および安定性が向上する。   According to the multi-axis drive snow vehicle according to the present invention, the maneuverability, turning performance, running performance and stability are improved.

以下、本発明の実施形態を図面に基づいて説明する。図１は、本発明の第一実施形態を適用した雪上車の右側面図である。また、図２はこの雪上車の下面図である。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a right side view of a snow vehicle to which a first embodiment of the present invention is applied. FIG. 2 is a bottom view of the snow vehicle.

図１および図２に示すように、この雪上車１は前後方向に延びる車体の前下部に左右一対の操舵用スキッド２が左右に操舵可能に設けられる。また、操舵用スキッド２はフロントサスペンション機構３により緩衝可能に支持される。一方、車体の後下部には左右一対のクローラ機構４が車体の幅方向に離間して設けられる。これらのクローラ機構４は、例えば前側に配置された左右一対の駆動輪５と、後側に配置された左右一対の従動輪６と、これらの動輪５，６間に配置された複数個の中間輪７と、これらの中間輪７を緩衝可能に支持する左右一対のリヤサスペンション機構８と、各車輪５〜７の周囲に巻装された左右一対のトラックベルト９とから構成される。   As shown in FIGS. 1 and 2, the snow vehicle 1 is provided with a pair of left and right steering skids 2 at the front lower portion of a vehicle body extending in the front-rear direction so as to be steerable left and right. The steering skid 2 is supported by the front suspension mechanism 3 so as to be able to be buffered. On the other hand, a pair of left and right crawler mechanisms 4 are provided in the rear lower portion of the vehicle body so as to be separated from each other in the vehicle width direction. These crawler mechanisms 4 include, for example, a pair of left and right driving wheels 5 disposed on the front side, a pair of left and right driven wheels 6 disposed on the rear side, and a plurality of intermediate wheels disposed between the driving wheels 5 and 6. The wheel 7 includes a pair of left and right rear suspension mechanisms 8 that support these intermediate wheels 7 so that they can be buffered, and a pair of left and right track belts 9 wound around the wheels 5 to 7.

クローラ機構４の上方の車体後上部には前後に延びる鞍乗型の運転シート１０が設けられ、この運転シート１０の左右には一段低いステップ１１が設けられる。また、運転シート１０の前方は車体カバー１２によって覆われ、この車体カバー１２の後上部、運転シート１０の前方にはステアリングシャフト１３を介して上記操舵用スキッド２を操作するステアリングハンドル１４が設けられる。そして、ステアリングハンドル１４前方にはメータパネル１５やこれらのステアリングハンドル１４およびメータパネル１５を覆うウィンドシールド１６等が設けられ、メータパネル１５前方のウィンドシールド１６前下端にはヘッドライト１７が設けられる。   A straddle-type driving seat 10 extending in the front-rear direction is provided at the rear upper part of the vehicle body above the crawler mechanism 4, and steps 11 that are one step lower are provided on the left and right sides of the driving seat 10. Further, the front of the driving seat 10 is covered by a vehicle body cover 12, and a steering handle 14 for operating the steering skid 2 via the steering shaft 13 is provided in the rear upper part of the vehicle body cover 12 and in front of the driving seat 10. . A meter panel 15 and a windshield 16 that covers the steering handle 14 and the meter panel 15 are provided in front of the steering handle 14, and a headlight 17 is provided at the front lower end of the windshield 16 in front of the meter panel 15.

クローラ機構４の前側に配置された左右一対の駆動輪５にはそれぞれ電動モータ１８が接続される。これらの電動モータ１８は、左右のトラックベルト９の間に、前後方向に縦列配置される。また、車体カバー１２内のクローラ機構４および電動モータ１８の前方には通常のバッテリや二次電池、燃料電池等の電源１９が配置される。そして、車体カバー１２の前部には電動モータ１８や電源１９を冷却するための冷却風を車体カバー１２内に取り入れる吸気口２０が設けられる。   An electric motor 18 is connected to each of the pair of left and right drive wheels 5 disposed on the front side of the crawler mechanism 4. These electric motors 18 are arranged in tandem between the left and right track belts 9 in the front-rear direction. A power source 19 such as a normal battery, a secondary battery, or a fuel cell is disposed in front of the crawler mechanism 4 and the electric motor 18 in the vehicle body cover 12. An intake port 20 is provided in the front portion of the vehicle body cover 12 for taking in cooling air for cooling the electric motor 18 and the power source 19 into the vehicle body cover 12.

一方、ステアリングシャフト１３の近傍にはステアリングハンドル１４、すなわち操舵用スキッド２の切れ角度や角速度を検知するハンドル角センサ２１が設けられる。このハンドル角センサ２１は電子制御モジュールであるＥＣＭ２２に接続されると共に、このＥＣＭ２２に上記電動モータ１８が接続される。   On the other hand, in the vicinity of the steering shaft 13, a steering wheel sensor 14, that is, a steering wheel angle sensor 21 that detects the cutting angle and angular velocity of the steering skid 2 is provided. The handle angle sensor 21 is connected to an ECM 22 that is an electronic control module, and the electric motor 18 is connected to the ECM 22.

電動モータ１８は、従来のガソリンエンジンのような内燃機関と比べ、そのサイズがコンパクトなため、車体カバー１２の内部（従来のエンジンルーム）に複数台、例えば二台配置可能となる。また、電動モータ１８はそのトルク変動を自在に制御可能であるため、従来の内燃機関には必要であった遠心クラッチ（ＣＴＶ）のようなトルク変動手段が不要となり、直接トラックベルト９を駆動可能になる。そして、複数台の電動モータ１８はそれぞれの回転数制御が比較的容易に行なえるため、トラックベルト９を左右二本に独立配置してそれぞれを別個の電動モータ１８を駆動するいわゆる多軸駆動が可能になる。   Since the electric motor 18 is smaller in size than an internal combustion engine such as a conventional gasoline engine, a plurality of, for example, two electric motors 18 can be arranged inside the vehicle body cover 12 (conventional engine room). In addition, since the electric motor 18 can freely control the torque fluctuation thereof, a torque fluctuation means such as a centrifugal clutch (CTV), which is necessary for a conventional internal combustion engine, is unnecessary, and the track belt 9 can be directly driven. become. Since the plurality of electric motors 18 can be controlled relatively easily, the so-called multi-axis drive in which the track belt 9 is independently arranged on the left and right sides and each of the electric motors 18 is driven separately. It becomes possible.

雪上車１のクローラ機構４を多軸駆動としたことにより、ステアリングハンドル１４の操舵角度に応じて前後の電動モータ１８の回転数、すなわち左右のトラックベルト９の速度を変えることができ、車両の旋回時にアシストを行なうことが可能となって旋回性が向上する。また、電動モータ１８は容易に逆回転させることができるので、左右のトラックベルト９を互いに反対方向に回転させればその場旋回も可能となり、狭い場所での取り回しが容易になる。   Since the crawler mechanism 4 of the snow vehicle 1 is multi-axis driven, the rotation speed of the front and rear electric motors 18, that is, the speed of the left and right track belts 9 can be changed according to the steering angle of the steering handle 14. It is possible to assist at the time of turning and the turning performance is improved. Further, since the electric motor 18 can be easily rotated in the reverse direction, if the left and right track belts 9 are rotated in opposite directions, it is possible to turn on the spot, and the handling in a narrow place is facilitated.

また、二本のトラックベルト９を左右に離間配置したことにより、左右一対の操舵用スキッド２と共に雪上車１を四点支持でき、安定性が増す。   Further, since the two track belts 9 are spaced apart from each other on the left and right, the snow vehicle 1 can be supported at four points together with the pair of left and right steering skids 2, and stability is increased.

さらに、電動モータ１８を用いることにより遠心クラッチ（ＣＴＶ）が不要となり、車体幅が狭められて走行抵抗が低減できると共に、騒音や排気ガスを出さないので、環境に優しい。   Further, the use of the electric motor 18 eliminates the need for a centrifugal clutch (CTV), reduces the vehicle body width and reduces running resistance, and does not emit noise or exhaust gas.

図３は、本発明の第二実施形態を適用した雪上車の右側面図である。また、図４はこの雪上車の下面図である。なお、第一実施形態に示したものと同一の構成部材には同一の符号を付して説明を省略する。   FIG. 3 is a right side view of the snow vehicle to which the second embodiment of the present invention is applied. FIG. 4 is a bottom view of the snow vehicle. In addition, the same code | symbol is attached | subjected to the component same as what was shown in 1st embodiment, and description is abbreviate | omitted.

図３および図４に示すように、この雪上車３１は左右のトラックベルト９の前方に、クローラ機構４に近接させて左右一対の電動モータ３２が車体の幅方向に離間して並列配置される。また、左右の電動モータ３２は、例えばベルトやチェーン、ギヤ等の動力伝達手段３３を介して駆動輪５に接続される。さらに、左右のトラックベルト９間の運転シート１０下方には電源３４が配置される。   As shown in FIGS. 3 and 4, the snow vehicle 31 is arranged in parallel with a pair of left and right electric motors 32 spaced in the width direction of the vehicle body in front of the left and right track belts 9 and close to the crawler mechanism 4. . The left and right electric motors 32 are connected to the drive wheels 5 via power transmission means 33 such as belts, chains, and gears. Further, a power supply 34 is disposed below the operation seat 10 between the left and right track belts 9.

電動モータ３２を左右のトラックベルト９の前方に配置すると共に、電源３４を左右のトラックベルト９間の運転シート１０下方に配置したことにより、車体カバー１２の前部の吸気口２０から取り入れた冷却風（図４に矢印で示す）が各機器に均等に当たり、冷却性が向上する。   The electric motor 32 is disposed in front of the left and right track belts 9, and the power supply 34 is disposed below the operation seat 10 between the left and right track belts 9, thereby cooling the air taken in from the intake port 20 at the front of the vehicle body cover 12. Wind (shown by arrows in FIG. 4) is equally applied to each device, and cooling performance is improved.

また、重量の嵩む電源３４を左右のトラックベルト９間の運転シート１０下方に配置したので、低重心化およびマスの集中化を図ることができる。その結果、走行性および操縦性が向上する。   Further, since the heavy power supply 34 is disposed below the driving seat 10 between the left and right track belts 9, it is possible to reduce the center of gravity and concentrate the mass. As a result, traveling performance and maneuverability are improved.

図５は、本発明の第三実施形態を適用した雪上車の下面図である。なお、第一実施形態に示したものと同一の構成部材には同一の符号を付して説明を省略する。   FIG. 5 is a bottom view of a snow vehicle to which the third embodiment of the present invention is applied. In addition, the same code | symbol is attached | subjected to the component same as what was shown in 1st embodiment, and description is abbreviate | omitted.

図５に示すように、この雪上車４１は、クローラ機構４の前側に配置された左右一対の駆動輪５に接続される電動モータ４２とは別に、クローラ機構４の後側に配置される左右一対の従動輪４３にも別途電動モータ４４をそれぞれ接続したものであり、この第三実施形態においては従動輪４３の内部に電動モータ４４を内蔵したいわゆるホイールインモータ形式を採用している。   As shown in FIG. 5, the snow vehicle 41 has a left and right side disposed on the rear side of the crawler mechanism 4 separately from the electric motor 42 connected to the pair of left and right drive wheels 5 disposed on the front side of the crawler mechanism 4. A separate electric motor 44 is also connected to each of the pair of driven wheels 43. In the third embodiment, a so-called wheel-in motor type in which the electric motor 44 is built in the driven wheel 43 is employed.

従動輪４３の内部に電動モータ４４を内蔵したことにより、いわゆる四輪駆動となってトラックベルト９のすべり等の動力ロスが減少し、走行性および操縦性が向上する。   By incorporating the electric motor 44 in the driven wheel 43, so-called four-wheel drive is achieved, and power loss such as slipping of the track belt 9 is reduced, and traveling performance and maneuverability are improved.

本発明に係る多軸駆動雪上車の第一実施形態を示す雪上車の右側面図。The right view of the snow vehicle which shows 1st embodiment of the multi-axis drive snow vehicle which concerns on this invention. 図１に示す雪上車の下面図。The bottom view of the snow vehicle shown in FIG. 本発明に係る多軸駆動雪上車の第二実施形態を示す雪上車の右側面図。The right view of the snow vehicle which shows 2nd embodiment of the multi-axis drive snow vehicle which concerns on this invention. 図３に示す雪上車の下面図。FIG. 4 is a bottom view of the snow vehicle shown in FIG. 3. 本発明に係る多軸駆動雪上車の第三実施形態を示す雪上車の下面図。The bottom view of the snow vehicle which shows 3rd embodiment of the multi-axis drive snow vehicle which concerns on this invention.

符号の説明Explanation of symbols

１，３１，４１ 雪上車
２ 操舵用スキッド
４ クローラ機構
５ 駆動輪
６，４３ 従動輪
９ トラックベルト
１０ 運転シート
１４ ステアリングハンドル
１８，３２，４２，４４ 電動モータ
１９，３４ 電源 1, 31, 41 Snowmobile 2 Steering skid 4 Crawler mechanism 5 Drive wheel 6, 43 Drive wheel 9 Track belt 10 Driving seat 14 Steering handle 18, 32, 42, 44 Electric motor 19, 34 Power supply

Claims (5)

車体後上部に鞍乗型の運転シートを備え、この運転シートの下方にクローラ機構を配置すると共に、車体の前下部に左右一対の操舵用スキッドを備え、上記運転シートの前方に上記操舵用スキッドを操作するステアリングハンドルを設けた雪上車において、上記クローラ機構は左右一対のトラックベルトを備え、これらのトラックベルトを複数の電動モータを用いてそれぞれ独立駆動可能に構成したことを特徴とする多軸駆動雪上車。 A straddle-type driving seat is provided at the rear upper part of the vehicle body, a crawler mechanism is disposed below the driving seat, a pair of left and right steering skids are provided at the lower front part of the vehicle body, and the steering skid is disposed in front of the driving seat. In a snow vehicle provided with a steering handle for operating the crawler mechanism, the crawler mechanism includes a pair of left and right track belts, and each of these track belts can be independently driven using a plurality of electric motors. Driving snow vehicle. 上記電動モータを、上記左右のトラックベルトの間に、前後方向に縦列配置した請求項１記載の多軸駆動雪上車。 The multi-axis drive snow vehicle according to claim 1, wherein the electric motor is arranged in tandem in the front-rear direction between the left and right track belts. 上記電動モータを、上記左右のトラックベルトの前方に、上記クローラ機構に近接させて車体の幅方向に離間して並列配置した請求項１記載の多軸駆動雪上車。 The multi-axis drive snow vehicle according to claim 1, wherein the electric motor is disposed in parallel in front of the left and right track belts, in proximity to the crawler mechanism and spaced apart in the width direction of the vehicle body. 上記左右のトラックベルト間の上記運転シート下方に電源を配置した請求項２または３記載の多軸駆動雪上車。 The multi-axis drive snow vehicle according to claim 2 or 3, wherein a power source is disposed below the driving seat between the left and right track belts. 上記クローラ機構の後側に配置される従動輪の内部に電動モータを内蔵した請求項１〜４のいずれかに記載の多軸駆動雪上車。 The multi-axis drive snow vehicle according to any one of claims 1 to 4, wherein an electric motor is built in a driven wheel disposed on the rear side of the crawler mechanism.
JP2006001527A 2006-01-06 2006-01-06 Multi-axle drive snowmobile Pending JP2007182137A (en)

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Cited By (12)

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US8453769B2 (en) 2010-04-15 2013-06-04 Yvon Martel Compact pulling apparatus
US8827014B2 (en) 2010-04-15 2014-09-09 Yvon Martel Compact pulling apparatus
JP2016529428A (en) * 2013-09-02 2016-09-23 ティルデ ナウズィーカ サルトーリＳＡＲＴＯＲＩ， Ｎａｕｓｉｃａａ， Ｔｉｌｄｅ Unmanned mobile devices and relative methods for handling snow-covered surfaces, especially glacial snow-covered surfaces
US9694859B2 (en) 2012-10-19 2017-07-04 Yvon Martel Compact drive unit including juxtaposed tracks
US9821865B2 (en) 2010-04-15 2017-11-21 Yvon Martel Compact pulling apparatus
WO2018215693A1 (en) * 2017-05-24 2018-11-29 Aurora Powertrains Oy A snowmobile with an electric motor, and a manufacturing method for a snowmobile with an electric motor
WO2019049109A1 (en) * 2017-09-11 2019-03-14 Taïga Motors Inc. Battery arrangement for electric snow vehicles
WO2019238579A1 (en) * 2018-06-10 2019-12-19 Ignatyev Sergey A motorized snow or ice vehicle
WO2020240090A1 (en) * 2019-05-28 2020-12-03 Elyly Oy Snow scooter
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US20220009589A1 (en) * 2020-07-09 2022-01-13 Yamaha Hatsudoki Kabushiki Kaisha Electric snowmobile
US20220063764A1 (en) * 2020-08-26 2022-03-03 Yamaha Hatsudoki Kabushiki Kaisha Electric snowmobile

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8528672B2 (en) 2010-04-15 2013-09-10 Yvon Martel Compact pulling apparatus
US8827014B2 (en) 2010-04-15 2014-09-09 Yvon Martel Compact pulling apparatus
US9821865B2 (en) 2010-04-15 2017-11-21 Yvon Martel Compact pulling apparatus
US8453769B2 (en) 2010-04-15 2013-06-04 Yvon Martel Compact pulling apparatus
US9694859B2 (en) 2012-10-19 2017-07-04 Yvon Martel Compact drive unit including juxtaposed tracks
US9862433B2 (en) 2012-10-19 2018-01-09 Yvon Martel Compact drive unit including juxtaposed tracks
JP2016529428A (en) * 2013-09-02 2016-09-23 ティルデ ナウズィーカ サルトーリＳＡＲＴＯＲＩ， Ｎａｕｓｉｃａａ， Ｔｉｌｄｅ Unmanned mobile devices and relative methods for handling snow-covered surfaces, especially glacial snow-covered surfaces
RU2752156C2 (en) * 2017-05-24 2021-07-23 Аурора Повертраинс Ой Snowmobile with electric engine and method for production of snowmobile with electric engine
WO2018215693A1 (en) * 2017-05-24 2018-11-29 Aurora Powertrains Oy A snowmobile with an electric motor, and a manufacturing method for a snowmobile with an electric motor
US11358679B2 (en) * 2017-05-24 2022-06-14 Aurora Powertrains Oy Snowmobile with an electric motor, and a manufacturing method for a snowmobile with an electric motor
WO2019049109A1 (en) * 2017-09-11 2019-03-14 Taïga Motors Inc. Battery arrangement for electric snow vehicles
WO2019238579A1 (en) * 2018-06-10 2019-12-19 Ignatyev Sergey A motorized snow or ice vehicle
JP2022502310A (en) * 2018-09-27 2022-01-11 ムーンバイクス モーターズ Vehicle with motor
WO2020240090A1 (en) * 2019-05-28 2020-12-03 Elyly Oy Snow scooter
US20220009589A1 (en) * 2020-07-09 2022-01-13 Yamaha Hatsudoki Kabushiki Kaisha Electric snowmobile
US11731734B2 (en) * 2020-07-09 2023-08-22 Yamaha Hatsudoki Kabushiki Kaisha Electric snowmobile
US20220063764A1 (en) * 2020-08-26 2022-03-03 Yamaha Hatsudoki Kabushiki Kaisha Electric snowmobile

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