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JP2020156340A - Sulky lawn mower - Google Patents

Sulky lawn mower Download PDF

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Publication number
JP2020156340A
JP2020156340A JP2019056618A JP2019056618A JP2020156340A JP 2020156340 A JP2020156340 A JP 2020156340A JP 2019056618 A JP2019056618 A JP 2019056618A JP 2019056618 A JP2019056618 A JP 2019056618A JP 2020156340 A JP2020156340 A JP 2020156340A
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Prior art keywords
collector
vehicle body
traveling vehicle
motor
mower
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小野　弘喜
Hiroyoshi Ono
弘喜 小野
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Priority to JP2019056618A priority Critical patent/JP2020156340A/en
Publication of JP2020156340A publication Critical patent/JP2020156340A/en
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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
    • 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
    • Y02T10/72—Electric energy management in electromobility

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  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

【課題】本発明は、コレクタを走行車体上に搭載することで安定した走行が行える電動の乗用型芝刈機とすることを課題とする。【解決手段】前輪９と後輪１０で支持した走行車体１２の前下部に芝生を刈り取るモアデッキ１を設け、走行車体１２の下部に前輪９を駆動する前モータ９Ｍと後輪１０を駆動する後モータ１０Ｍを設け、モアデッキ１から送られる刈芝を溜めるコレクタ３を走行車体１２の後輪１０上で昇降可能に設け、該コレクタ３の前に操縦座席４を設け、コレクタ３下方の走行車体１２上に動力源となるバッテリユニット１３を搭載する乗用芝刈り機とする。【選択図】図３PROBLEM TO BE SOLVED: To provide an electric riding lawn mower capable of stable traveling by mounting a collector on a traveling vehicle body. SOLUTION: A mower deck 1 for cutting lawn is provided in a lower front portion of a traveling vehicle body 12 supported by front wheels 9 and a rear wheel 10, and a front motor 9M for driving the front wheels 9 and a rear wheel 10 are driven in the lower portion of the traveling vehicle body 12. A motor 10M is provided, a collector 3 for collecting the mowing grass sent from the mower deck 1 is provided so as to be able to move up and down on the rear wheel 10 of the traveling vehicle body 12, a control seat 4 is provided in front of the collector 3, and the traveling vehicle body 12 below the collector 3 is provided. A passenger lawn mower on which a battery unit 13 serving as a power source is mounted. [Selection diagram] Fig. 3

Description

本発明は、電動モータを動力源として芝生を刈り取り走行する乗用型芝刈機に関する。 The present invention relates to a riding lawn mower that cuts and travels lawn using an electric motor as a power source.

省エネを目的として、動力源にエンジンと電動モータを備えたハイブリッド方式の乗用型芝刈機がある。 For the purpose of energy saving, there is a hybrid type riding lawn mower equipped with an engine and an electric motor as a power source.

この乗用芝刈り機は、例えば、特許文献１に記載の如く、前後車輪で支持した走行車体の前部にエンジンを搭載し、その後部に作業者が搭乗する座席を設け、この座席下部に発電機とバッテリを搭載し、走行車体の後部に昇降可能に装着したコレクタで刈り取った芝生を収納運搬する構成で、前輪と後輪及びモアブレードを電動モータとエンジンの動力を使い分けて駆動走行する。 In this passenger lawn mower, for example, as described in Patent Document 1, an engine is mounted on the front part of a traveling vehicle body supported by front and rear wheels, a seat on which an operator rides is provided on the rear part, and power is generated under the seat. It is equipped with a machine and a battery, and is configured to store and transport the lawn cut by a collector that can be raised and lowered at the rear of the vehicle body. The front wheels, rear wheels, and mower blades are driven by using the power of the electric motor and engine.

特許第５７７９８５８号公報Japanese Patent No. 5779858

前記従来の乗用芝刈り機は、前輪と後輪で支持した走行車体の後部にコレクタを装着しているために、コレクタに芝生が充満するとコレクタの重量が重くなって走行車体が浮き気味になって走行が不安定になる。 In the conventional passenger lawn mower, a collector is attached to the rear part of the traveling vehicle body supported by the front wheels and the rear wheels. Therefore, when the collector is filled with lawn, the weight of the collector becomes heavy and the traveling vehicle body tends to float. And the running becomes unstable.

本発明は、コレクタを走行車体上に搭載することで安定した走行が行える電動の乗用型芝刈機とすることを課題とする。 An object of the present invention is to provide an electric riding lawn mower capable of stable traveling by mounting a collector on a traveling vehicle body.

上記本発明の課題は、次の技術手段により解決される。 The above-mentioned problem of the present invention is solved by the following technical means.

請求項１の発明は、前輪９と後輪１０で支持した走行車体１２の前下部に芝生を刈り取るモアデッキ１を設け、前記走行車体１２の下部に前記前輪９を駆動する前モータ９Ｍと前記後輪１０を駆動する後モータ１０Ｍを設け、前記モアデッキ１から送られる刈芝を溜めるコレクタ３を前記走行車体１２の前記後輪１０上で昇降可能に設け、該コレクタ３の前に操縦座席４を設け、前記コレクタ３下方の前記走行車体１２上に動力源となるバッテリユニット１３を搭載することを特徴とする乗用芝刈り機とする。 According to the first aspect of the present invention, a mower deck 1 for cutting lawn is provided in the lower front portion of the traveling vehicle body 12 supported by the front wheels 9 and the rear wheels 10, and a front motor 9M for driving the front wheels 9 and the rear portion in the lower portion of the traveling vehicle body 12. A rear motor 10M for driving the wheels 10 is provided, a collector 3 for collecting the mowing grass sent from the mower deck 1 is provided so as to be able to move up and down on the rear wheels 10 of the traveling vehicle body 12, and a control seat 4 is provided in front of the collector 3. The riding lawn mower is provided, wherein the battery unit 13 serving as a power source is mounted on the traveling vehicle body 12 below the collector 3.

請求項２の発明は、前記バッテリユニット１３を電池セット１９を前後左右平面状に複数並べて配設構成したことを特徴とする請求項１に記載の乗用芝刈り機とする。 The invention of claim 2 is the riding lawn mower according to claim 1, wherein a plurality of battery sets 19 are arranged side by side in a front-rear, left-right, and horizontal plane.

請求項３の発明は、前記バッテリユニット１３上に、該バッテリユニット１３、前記前モータ９Ｍ及び前記後モータ１０Ｍの電力制御ユニット１４を配置したことを特徴とする請求項１に記載の乗用芝刈り機とする。 The passenger lawnmower according to claim 1, wherein the power control unit 14 of the battery unit 13, the front motor 9M, and the rear motor 10M is arranged on the battery unit 13. Take the opportunity.

請求項１の発明で、前輪９と後輪１０で支持した走行車体１２の後輪１０上にバッテリユニット１３とコレクタ３が配置されるので、後輪１０で支持した走行車体１２上のコレクタ３に刈り取った芝生が充満して重量が重くなっても後輪１０でその重量を受け止めて走行車体１２の重量バランスを変化しにくくすることができる。また、複数のバッテリユニット１３を平面状に並べて搭載することにより、重心の上昇を抑制できるため、安定した状態で走行できる。 In the invention of claim 1, since the battery unit 13 and the collector 3 are arranged on the rear wheels 10 of the traveling vehicle body 12 supported by the front wheels 9 and the rear wheels 10, the collector 3 on the traveling vehicle body 12 supported by the rear wheels 10 is arranged. Even if the mowed lawn fills up and the weight becomes heavy, the weight can be received by the rear wheels 10 and the weight balance of the traveling vehicle body 12 can be made difficult to change. Further, by mounting the plurality of battery units 13 side by side in a plane, the rise of the center of gravity can be suppressed, so that the battery can travel in a stable state.

請求項２の発明で、請求項１の効果に加えて、たとえば、バッテリユニット１３を高さの低い電池セット１９を平面状に並べているので、コレクタ３の位置が高くなることなく、安定した機体構成となる。また、重量の大きなバッテリユニット１３を扁平な形状に構成できるため、重心の上昇を抑制でき、安定した状態での走行が可能となる。また、高さの低い複数のバッテリＲＢは、交換などのメンテナンスが容易である。 In the invention of claim 2, in addition to the effect of claim 1, for example, since the battery unit 13 and the battery set 19 having a low height are arranged in a plane, the position of the collector 3 does not become high and the machine body is stable. It becomes a composition. Further, since the heavy battery unit 13 can be configured into a flat shape, the rise of the center of gravity can be suppressed, and the battery unit 13 can run in a stable state. Further, the plurality of low-height battery RBs are easy to maintain such as replacement.

請求項３の発明で、請求項１の効果に加えて、コレクタ３の下部で走行車体１２に搭載されるバッテリユニット１３と電力制御ユニット１４は、コレクタ３を上昇させると上面が解放されるので、メンテナンス作業を行い易い。また、重量の大きいバッテリを低位置に置くことで車体重心を低く抑え、安定した状態で走行できる。 In the invention of claim 3, in addition to the effect of claim 1, the upper surfaces of the battery unit 13 and the power control unit 14 mounted on the traveling vehicle body 12 at the lower part of the collector 3 are released when the collector 3 is raised. , Easy to perform maintenance work. In addition, by placing the heavy battery in a low position, the center of gravity of the vehicle can be kept low and the vehicle can run in a stable state.

乗用芝刈り機の右側面図である。It is a right side view of a riding lawn mower. 乗用芝刈り機の一部省略平面図である。It is a partially omitted plan view of a riding lawn mower. 乗用芝刈り機のバッテリ搭載状態を示す右側面図である。It is a right side view which shows the battery-mounted state of a riding lawn mower. 乗用芝刈り機の動力伝動機構図である。It is a power transmission mechanism diagram of a riding lawn mower. バッテリユニットの斜視図である。It is a perspective view of a battery unit.

本実施形態の乗用芝刈機は、走行車体１２に、前側下部に昇降自在に連結されていて芝草を刈り取るモアデッキ１と、その後側に刈り取られた芝草を吸引して搬送するブロワ２と、その後側に刈り取られた芝草を収容するコレクタ３を備えている。 The passenger lawnmower of the present embodiment has a mower deck 1 that is movably connected to the lower part of the front side to mow the lawn mower, a blower 2 that sucks and conveys the mowed lawn mower to the rear side, and the rear side. It is equipped with a collector 3 for accommodating the mowed lawn mower.

また、コレクタ３の前側には運転席４が設けられている。運転席４前側のハンドルポスト５には、操向操作用のステアリングハンドル６や、操作盤７が設けられていて、ステップ８には前進用ペダルや後進用ペダルやブレーキペダル等が設けられている。 A driver's seat 4 is provided on the front side of the collector 3. The steering wheel 6 and the operation panel 7 for steering operation are provided on the steering wheel post 5 on the front side of the driver's seat 4, and a forward pedal, a reverse pedal, a brake pedal, and the like are provided in step 8. ..

前記運転席４，ハンドルポスト５，ステップ８等を設ける走行車体１２の下部には、前モータ９Ｍで駆動される前輪９と後モータ１０Ｍで駆動される後輪１０が設けられ、走行車体１２からハンドルポスト５の下方に向けてモアリンク１１を伸ばしモアデッキ１を装着している。 A front wheel 9 driven by a front motor 9M and a rear wheel 10 driven by a rear motor 10M are provided below the traveling vehicle body 12 provided with the driver's seat 4, steering wheel post 5, step 8 and the like. The mower link 11 is extended downward of the handle post 5 and the mower deck 1 is attached.

モアデッキ１の左右に設けるブレード軸はブレードモータ１Ｍ，１Ｍで回転駆動し、モアリンク１１がモア電動シリンダ１１Ｃでモアデッキ１を昇降する。 The blade shafts provided on the left and right sides of the mower deck 1 are rotationally driven by the blade motors 1M and 1M, and the mower link 11 moves up and down the mower deck 1 by the mower electric cylinder 11C.

モアデッキ１とコレクタ３は、図示省略のダクトで連結され、刈り取った芝生がブロワ２の送風でコレクタ３内に搬送して収納される。 The mower deck 1 and the collector 3 are connected by a duct (not shown), and the cut lawn is conveyed and stored in the collector 3 by the blower of the blower 2.

車体フレーム１２の後半部で左右の後輪１０上方には間隔を空けてコレクタフレーム３Ｆを設け、このコレクタフレーム３Ｆにコレクタ３をコレクタリフトシリンダ３Ｌで昇降しコレクタダンプシリンダ３Ｄでダンプ可能に取り付けている。コレクタ３のリアゲート３Ｇはコレクタ３をダンプすると後方へ開き、内部の芝生を排出する。 In the latter half of the vehicle body frame 12, collector frames 3F are provided above the left and right rear wheels 10 at intervals, and the collector 3 is raised and lowered by the collector lift cylinder 3L on the collector frame 3F so that it can be dumped by the collector dump cylinder 3D. There is. When the collector 3 is dumped, the rear gate 3G of the collector 3 opens rearward and discharges the lawn inside.

車体フレーム１２とコレクタフレーム３Ｆの間隔内には、図５の如く複数のリチウムイオン電池を直列接続した電池セット１９を前後左右に直列接続で配置したバッテリユニット１３を下にしてバッテリ制御ユニット１４を上にして搭載している。従って、コレクタフレーム３Ｆを上昇させると走行車体１２との間に広い空間が確保できて、バッテリユニット１３とバッテリユニット１３のメンテナンスや電池セット１９の交換が容易に行える。また、重量の大きいバッテリを低位置に置くことで車体重心を低く抑え、安定した状態で走行できる。 Within the distance between the vehicle body frame 12 and the collector frame 3F, the battery control unit 14 is placed with the battery unit 13 in which a battery set 19 in which a plurality of lithium ion batteries are connected in series is arranged in series in front, back, left and right as shown in FIG. It is mounted on top. Therefore, when the collector frame 3F is raised, a wide space can be secured between the traveling vehicle body 12 and the battery unit 13 and the battery unit 13 can be easily maintained and the battery set 19 can be easily replaced. In addition, by placing the heavy battery in a low position, the center of gravity of the vehicle can be kept low and the vehicle can run in a stable state.

なお、電池セット１９は、薄いリチウムイオン電池を複数重ねて一体にしても良い。また、高さを構成する辺が幅、奥行きを構成する辺よりもかなり短い直方体、すなわち扁平な形状をしている。この電池セット１９を平面状に並べることにより、重量の大きいバッテリユニット１３の高さを低くして搭載できるため、車両の重心を低く抑え、安定した状態で走行できる。 The battery set 19 may be integrated by stacking a plurality of thin lithium ion batteries. In addition, the sides that make up the height are rectangular parallelepipeds that are considerably shorter than the sides that make up the width and depth, that is, they have a flat shape. By arranging the battery sets 19 in a plane, the height of the heavy battery unit 13 can be lowered, so that the center of gravity of the vehicle can be kept low and the vehicle can run in a stable state.

図４には、前輪９と後輪１０の動力伝動機構を示し、前モータ９Ｍのモータ軸回転が前デフ機構１５で左右に分岐して前遊星減速機構１６で減速されて前輪９の車軸に伝動され、後モータ１０Ｍのモータ軸回転が後デフ機構１７で左右に分岐して後遊星減速機構１８で減速されて後輪１０の車軸に伝動される。また、前モータ９Ｍのモータ軸回転が前軸回転センサ９Ｓで検出され、後モータ１０Ｍのモータ軸回転が後軸回転センサ１０Ｓで検出される。 FIG. 4 shows the power transmission mechanism of the front wheels 9 and the rear wheels 10, and the rotation of the motor shaft of the front motor 9M is branched to the left and right by the front differential mechanism 15 and decelerated by the front planetary deceleration mechanism 16 to the axle of the front wheels 9. It is transmitted, and the rotation of the motor shaft of the rear motor 10M is branched to the left and right by the rear differential mechanism 17, decelerated by the rear planetary reduction mechanism 18, and transmitted to the axle of the rear wheel 10. Further, the motor shaft rotation of the front motor 9M is detected by the front shaft rotation sensor 9S, and the motor shaft rotation of the rear motor 10M is detected by the rear shaft rotation sensor 10S.

１ モアデッキ
３ コレクタ
９ 前輪
９Ｍ 前モータ
１０ 後輪
１０Ｍ 後モータ
１２ 走行車体
１３ バッテリユニット
１４ 電力制御ユニット
1 More deck 3 Collector 9 Front wheel 9M Front motor 10 Rear wheel 10M Rear motor 12 Traveling vehicle body 13 Battery unit 14 Power control unit

Claims (3)

前輪（９）と後輪（１０）で支持した走行車体（１２）の前下部に芝生を刈り取るモアデッキ（１）を設け、前記走行車体（１２）の下部に前記前輪（９）を駆動する前モータ（９Ｍ）と前記後輪（１０）を駆動する後モータ（１０Ｍ）を設け、前記モアデッキ（１）から送られる刈芝を溜めるコレクタ（３）を前記走行車体（１２）の前記後輪（１０）上で昇降可能に設け、該コレクタ（３）の前に操縦座席（４）を設け、前記コレクタ（３）下方の前記走行車体（１２）上に動力源となるバッテリユニット（１３）を搭載することを特徴とする乗用芝刈り機。 A mower deck (1) for cutting the lawn is provided in the lower front part of the traveling vehicle body (12) supported by the front wheels (9) and the rear wheels (10), and before driving the front wheel (9) in the lower part of the traveling vehicle body (12). A rear motor (10M) for driving the motor (9M) and the rear wheels (10) is provided, and a collector (3) for collecting the mowing grass sent from the mower deck (1) is used as the rear wheels (12) of the traveling vehicle body (12). A battery unit (13) serving as a power source is provided on the traveling vehicle body (12) below the collector (3) by providing a control seat (4) in front of the collector (3) so as to be able to move up and down on the collector (3). A riding lawn mower that is characterized by being installed. 前記バッテリユニット（１３）を電池セット（１９）を前後左右平面状に複数並べて配設構成したことを特徴とする請求項１に記載の乗用芝刈り機。 The riding lawnmower according to claim 1, wherein a plurality of battery sets (19) are arranged side by side in a front-rear, left-right, and horizontal plane. 前記バッテリユニット（１３）上に、該バッテリユニット（１３）、前記前モータ（９Ｍ）及び前記後モータ（１０Ｍ）の電力制御ユニット（１４）を配置したことを特徴とする請求項１に記載の乗用芝刈り機。
The first aspect of claim 1, wherein the battery unit (13), the front motor (9M), and the power control unit (14) of the rear motor (10M) are arranged on the battery unit (13). Riding lawn mower.
JP2019056618A 2019-03-25 2019-03-25 Sulky lawn mower Pending JP2020156340A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113243190A (en) * 2021-06-16 2021-08-13 格力博(江苏)股份有限公司 Garden tool
EP4136959A1 (en) 2021-08-17 2023-02-22 Iseki & Co., Ltd. Work vehicle

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113243190A (en) * 2021-06-16 2021-08-13 格力博(江苏)股份有限公司 Garden tool
EP4136959A1 (en) 2021-08-17 2023-02-22 Iseki & Co., Ltd. Work vehicle
KR20230026249A (en) 2021-08-17 2023-02-24 이세키노우키가부시키가이샤 Working vehicle

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