JP3365894B2 - Crawler belt type vehicle - Google Patents
Crawler belt type vehicleInfo
- Publication number
- JP3365894B2 JP3365894B2 JP33894995A JP33894995A JP3365894B2 JP 3365894 B2 JP3365894 B2 JP 3365894B2 JP 33894995 A JP33894995 A JP 33894995A JP 33894995 A JP33894995 A JP 33894995A JP 3365894 B2 JP3365894 B2 JP 3365894B2
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- wheels
- crawler belt
- crawler
- vehicle
- 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.)
- Expired - Fee Related
Links
Landscapes
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、前輪をタイヤ、後
輪をクローラとしたクローラベルト式車両（いわゆる、
ハーフクローラ車）の改良に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler belt type vehicle in which front wheels are tires and rear wheels are crawlers (so-called
Half crawler car) improvement.
【０００２】[0002]
【従来の技術】従来、ハーフクローラ車として、例えば
特開昭６０−１４３１８９号公報「不整地走行用車
両」及び特開昭５９−１６４２７０号公報「履帯を有
する四輪駆動車」の技術がある。上記の技術は、その
公報の第２図及び第３図によれば、車体フレーム１１
（番号は公報に記載されたものを引用した。以下同
じ。）の前部にバルーンタイヤ付き前車輪１２を取付
け、車体フレーム１１の後部にバルーンタイヤ付き後車
輪１３及びアイドルホイール２４を取付け、これら後車
輪１３及びアイドルホイール２４にゴム製のキャタピラ
２７を掛け渡した構成である。上記の技術は、その公
報の第１図によれば、四輪駆動車２の車体前部に前輪３
を取付け、車体後部にタイヤ付き後輪４及びタイヤ付き
遊動輪５を取付け、これら後輪４及び遊動輪５にゴム製
の履帯６を掛け渡した構成である。2. Description of the Related Art Conventionally, as a half crawler vehicle, there are technologies such as JP-A-60-143189, "Vehicle for traveling on uneven terrain" and JP-A-59-164270, "Four-wheel drive vehicle with crawler track". . According to FIGS. 2 and 3 of the publication, the above-mentioned technique is based on the body frame 11
(The numbers are those described in the publication. The same shall apply hereinafter.) The front wheel 12 with a balloon tire is attached to the front part, and the rear wheel 13 with a balloon tire and the idle wheel 24 are attached to the rear part of the vehicle body frame 11. The rear wheel 13 and the idle wheel 24 are covered with rubber tracks 27. According to FIG. 1 of the publication, the above-mentioned technique is based on the front wheel 3 on the front part of the vehicle body of the four-wheel drive vehicle 2.
Is attached, the rear wheel 4 with tires and the idler wheel 5 with tires are attached to the rear part of the vehicle body, and the crawler belt 6 made of rubber is stretched over these rear wheel 4 and idler wheel 5.
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記のハー
フクローラ車は、操向輪としての前車輪１２と、駆動輪
としての後車輪１３とが概ね同径であり、雪上を走行し
た際に、前車輪１２で雪を踏む面積が、後部のキャタピ
ラ２７で雪を踏む面積よりも小さい。このため、前車輪
１２は、雪に沈んだ部分の側面からの投影面積が大き
い。従って、ハーフクローラ車は、前車輪１２を操舵し
た際の雪の抵抗が大きくなるので、旋回性を高めること
が容易でなく、特に、新雪でしかも未踏の地で旋回性を
高めることは容易でない。上記も同様である。また、
新雪でしかも未踏の地を走行するハーフクローラ車は、
走破性が高いことを求められる。However, in the above half crawler vehicle, the front wheels 12 as steering wheels and the rear wheels 13 as driving wheels have substantially the same diameter, and when traveling on snow, The area where the front wheels 12 step on snow is smaller than the area where the rear tracks 27 step on snow. For this reason, the front wheel 12 has a large projected area from the side surface of the portion sinking in the snow. Therefore, in the half-crawler vehicle, the resistance of the snow when the front wheels 12 are steered becomes large, so that it is not easy to improve the turning performance, and particularly it is not easy to improve the turning performance in fresh snow and unexplored ground. . The same applies to the above. Also,
Half-crawler cars that run on unexplored ground with fresh snow
High running performance is required.
【０００４】そこで本発明の目的は、雪上での旋回性及
び走破性を高めたクローラベルト式車両を提供すること
にある。Therefore, an object of the present invention is to provide a crawler belt type vehicle having improved turning performance and running performance on snow.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
の請求項１記載の発明は、車体前部にタイヤ付き前輪を
取付け、車体後部にタイヤ付き中間輪及びタイヤ付き後
輪を取付け、これら中間輪及び後輪に可撓性材料からな
るクローラベルトを掛け渡したクローラベルト式車両に
おいて、前輪、中間輪及び後輪を車体にそれぞれ左右一
対備え、前輪を、中間輪及び後輪よりも大径のバルーン
タイヤ付き車輪とし、車体後部にエンジンを備えたこと
を特徴とする。中間輪及び後輪に対して、前輪を相対的
に大径としたので、同径の場合と比べて雪上走行時に前
輪の沈み深さが小さくてすみ、前輪は雪に沈んだ部分の
側面からの投影面積が小さい。従って、クローラベルト
式車両は、前輪を操舵した際の雪の抵抗が小さいので、
旋回性が良い。また、前輪は大径なので、雪を乗越えた
り掻き分けることが容易であり、このため、クローラベ
ルト式車両は雪上での走破性が良い。更に、前輪が大径
なので、前輪用車軸や前輪周辺のフレームの最低地上高
さを容易に上げることができ、最低地上高さが上がるこ
とにより雪上での走行性が良い。更にまた、中間輪及び
後輪が前輪よりも小径なので、クローラは短くてすみ、
このため、クローラベルト式車両は軽量であり、しか
も、クローラ回りの車高を低くできるので重心が下が
り、走行安定性が良い。According to a first aspect of the present invention for achieving the above object, a front wheel with a tire is attached to a front portion of a vehicle body, and an intermediate wheel with a tire and a rear wheel with a tire are attached to a rear portion of the vehicle body. In a crawler belt type vehicle in which a crawler belt made of a flexible material is stretched around the middle wheel and the rear wheel, the front wheel, the middle wheel, and the rear wheel are respectively placed on the left and right sides of the vehicle body.
Taisonae, a front wheel, than the medium Mawa and rear wheels of a large diameter balloon
It is characterized by wheels with tires and an engine at the rear of the vehicle body . Since the front wheels have a relatively large diameter with respect to the intermediate wheels and the rear wheels, the depth of sinking of the front wheels can be smaller when traveling on snow than when they have the same diameter. The projected area of is small. Therefore, since the crawler belt type vehicle has a small snow resistance when the front wheels are steered,
Good turning performance. Further, since the front wheels have a large diameter, it is easy to get over the snow and scrape it off. Therefore, the crawler belt type vehicle has good running performance on snow. Further, since the front wheels have a large diameter, it is possible to easily raise the minimum ground height of the front wheel axle and the frame around the front wheels, and by increasing the minimum ground height, the running performance on snow is good. Furthermore, since the middle and rear wheels are smaller in diameter than the front wheels, the crawler can be short,
Therefore, the crawler belt type vehicle is light in weight, and further, since the vehicle height around the crawler can be lowered, the center of gravity is lowered and the running stability is good.
【０００６】請求項２記載の発明は、前輪をタイヤ、後
輪をクローラとし、このクローラを、中間輪及び後輪に
可撓性材料からなるクローラベルトを掛け渡す構成とし
たクローラベルト式車両において、前輪、中間輪及び後
輪を車体にそれぞれ左右一対備え、前輪をバルーンタイ
ヤ付き車輪とし、前輪の径をクローラの全高さよりも大
きくし、車体後部にエンジンを備えたことを特徴とす
る。クローラの全高さに対して、前輪を相対的に大径と
したので、クローラの全高さと同じ場合に比べて、雪上
走行時に前輪の沈み深さが小さくてすみ、前輪は雪に沈
んだ部分の側面からの投影面積が小さい。従って、クロ
ーラベルト式車両は、前輪を操舵した際の雪の抵抗が小
さいので、旋回性が良い。また、前輪は大径なので、雪
を乗越えたり掻き分けることが容易であり、このため、
クローラベルト式車両は雪上での走破性が良い。更に、
前輪が大径なので、前輪用車軸や前輪周辺のフレームの
最低地上高さを容易に上げることができ、最低地上高さ
が上がることにより雪上での走行性が良い。更にまた、
クローラの全高さが前輪よりも低いので、クローラは短
くてすみ、このため、クローラベルト式車両は軽量であ
り、しかも、クローラ回りの車高を低くできるので重心
が下がり、走行安定性が良い。According to a second aspect of the present invention, there is provided a crawler belt type vehicle in which the front wheels are tires and the rear wheels are crawlers, and the crawlers are arranged such that a crawler belt made of a flexible material is laid over the intermediate wheels and the rear wheels. Front wheel, middle wheel and rear
There are a pair of left and right wheels on the car body, and the front wheels are balloon-tie
And Ya wheeled, the diameter of the front wheel larger than the total height of the crawler, characterized by comprising an engine to a vehicle body rear portion. Since the front wheel has a relatively large diameter relative to the total height of the crawler, the depth of the front wheel will be smaller when traveling on snow than when it is the same as the total height of the crawler. The projected area from the side is small. Therefore, the crawler belt type vehicle has a small turning resistance when the front wheels are steered, and therefore has a good turning performance. Also, since the front wheels have a large diameter, it is easy to get over the snow and scrape it away.
Crawler belt type vehicles have good running performance on snow. Furthermore,
Since the front wheels have a large diameter, the minimum ground height of the front wheel axle and the frame around the front wheels can be easily raised, and the higher minimum ground height allows for better running on snow. Furthermore,
Since the total height of the crawler is lower than that of the front wheels, the crawler can be short. Therefore, the crawler belt type vehicle is lightweight, and the vehicle height around the crawler can be lowered, so that the center of gravity is lowered and the running stability is good.
【０００７】[0007]
【発明の実施の形態】本発明の実施の形態を添付図面に
基づいて以下に説明する。なお、図面は符号の向きに見
るものとする。図１は本発明に係るクローラベルト式車
両の側面図であり、クローラベルト式車両１は前輪をタ
イヤ、後輪をクローラとした、いわゆる、ハーフクロー
ラ車である。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings should be viewed in the direction of the reference numerals. FIG. 1 is a side view of a crawler belt type vehicle according to the present invention. A crawler belt type vehicle 1 is a so-called half crawler vehicle in which a front wheel is a tire and a rear wheel is a crawler.
【０００８】詳しくは、クローラベルト式車両１は、前
部のキャビン２と後部の荷台３とを備えた車体フレーム
４（車体）に、駆動輪としての前輪５と、駆動輪として
の後輪６と、これら前・後輪５，６の間に介在した遊転
輪としての中間輪７と、これら後・中間輪６，７との間
に介在した３つの転輪８…（…は複数を示す。以下同
じ。）とを左右に取付け、後輪６と中間輪７とにクロー
ラベルト９を掛け渡すことでクローラを構成した、４輪
駆動・クローラ式車両である。More specifically, the crawler belt type vehicle 1 includes a vehicle body frame 4 (vehicle body) having a front cabin 2 and a rear luggage carrier 3, a front wheel 5 as a drive wheel, and a rear wheel 6 as a drive wheel. And an intermediate wheel 7 as an idler wheel interposed between the front and rear wheels 5 and 6, and three roller wheels 8 interposed between the rear and intermediate wheels 6 and 7 (... The same applies hereinafter.), And the crawler belt 9 is stretched over the rear wheels 6 and the intermediate wheels 7 to form a crawler, which is a four-wheel drive crawler vehicle.
【０００９】前輪５、後輪６及び中間輪７はゴム製空気
入りタイヤを備え、このタイヤは、バルーンタイヤであ
る。なお、前輪５、後輪６及び中間輪７はタイヤを備え
た構成であればよい。前輪５は、後輪６及び中間輪７よ
りも大径であり、このため、前輪５の中心高さ寸法Ｈ1
は、後輪６及び中間輪７の中心高さ寸法Ｈ2よりも大き
い（高位である）。クローラベルト９は、ゴム材などの
可撓性材料からなり、長手方向両側にタイヤのショルダ
部に対する多数のサイドガイド部９ａ…を起設し、接地
面９ｂに所定の凹凸パターンを形成したものである。The front wheel 5, the rear wheel 6, and the intermediate wheel 7 are provided with rubber pneumatic tires, which are balloon tires. The front wheels 5, the rear wheels 6, and the intermediate wheels 7 may have tires. The front wheel 5 has a larger diameter than the rear wheel 6 and the intermediate wheel 7, and therefore the center height dimension H 1 of the front wheel 5 is H 1.
Is larger (higher) than the center height dimension H 2 of the rear wheel 6 and the intermediate wheel 7. The crawler belt 9 is made of a flexible material such as a rubber material, and has a number of side guide portions 9a for the shoulder portion of the tire provided on both sides in the longitudinal direction, and a predetermined uneven pattern is formed on the ground contact surface 9b. is there.
【００１０】なお、荷台３は車体フレーム４の後部上部
に一体に備えた後部フレーム４ａに、取付けた構成であ
る。また、車体フレーム４は、後部にトランスミッショ
ン１１ａ付きエンジン１１を備える。１２はエアクリー
ナ、１３はエアクリーナ用エア取入管、１４はマフラ、
１５は乗員Ｍ用シート、１６はステアリングハンドル、
１７はチェンジレバー、１８はアクセルペダル、１９は
ブレーキペダル、２１はサイドブレーキ、２２はフロン
トフェンダである。The loading platform 3 is attached to a rear frame 4a integrally provided on the upper rear portion of the vehicle body frame 4. Further, the vehicle body frame 4 includes an engine 11 with a transmission 11a at the rear part. 12 is an air cleaner, 13 is an air intake pipe for the air cleaner, 14 is a muffler,
15 is a passenger M seat, 16 is a steering wheel,
Reference numeral 17 is a change lever, 18 is an accelerator pedal, 19 is a brake pedal, 21 is a side brake, and 22 is a front fender.
【００１１】図２は本発明に係るクローラベルト式車両
の平面図であり、キャビン２及び荷台３を外した姿を示
す。なお、荷台３はこの図の想像線にて示す。車体フレ
ーム４は、前部にフロントサスペンション２５と操舵装
置３０と前輪用駆動装置４０とを備え、後部にリヤサス
ペンション装置５０と後輪用駆動装置６０とを備える。FIG. 2 is a plan view of a crawler belt type vehicle according to the present invention, showing a state in which the cabin 2 and the loading platform 3 are removed. The cargo bed 3 is shown by an imaginary line in this figure. The vehicle body frame 4 includes a front suspension 25, a steering device 30, and a front wheel drive device 40 at a front portion, and a rear suspension device 50 and a rear wheel drive device 60 at a rear portion.
【００１２】操舵装置３０は、想像線にて示すステアリ
ングハンドル１６の操舵力を伝達するためのタイロッド
３１、このタイロッド３１の両端のタイロッドエンド３
２，３２に連結したナックルアーム３３，３３、これら
ナックルアーム３３，３３と前輪５，５の支軸５ａ，５
ａとを連結したキングピン３４，３４等からなる。The steering device 30 includes a tie rod 31 for transmitting a steering force of the steering handle 16 shown by an imaginary line, and tie rod ends 3 at both ends of the tie rod 31.
Knuckle arms 33, 33 connected to 2, 32, knuckle arms 33, 33 and support shafts 5a, 5 for front wheels 5, 5
It is composed of king pins 34, 34 and the like connected to a.
【００１３】前輪用駆動装置４０は、トランスミッショ
ン１１ａの前部から延びた推進軸４１、この推進軸４１
に連結した差動装置４２、この差動装置４２と前輪５，
５の支軸５ａ，５ａとに連結した左右の駆動軸４３，４
３からなる。The front wheel drive unit 40 includes a propulsion shaft 41 extending from the front portion of the transmission 11a, and the propulsion shaft 41.
A differential gear 42 connected to the differential gear 42, the differential gear 42 and the front wheel 5,
The left and right drive shafts 43, 4 connected to the support shafts 5a, 5a of FIG.
It consists of three.
【００１４】リヤサスペンション装置５０は、車体フレ
ーム４の後部に左右１対のスイングアーム５１，５１を
上下揺動可能に取付け、これらスイングアーム５１，５
１を走行方向後方へ延出し、その揺動先端間に揺動管５
２を掛け渡し、この揺動管５２の両端部にサブビーム５
３，５３を上下揺動可能に取付け、これらサブビーム５
３，５３を走行方向前方へ延出し、その前端部に中間輪
支軸５４，５４を回転可能に取付け、この中間輪支軸５
４，５４の先端部に中間輪７，７を取付けて構成し、更
に、オイルダンパ５５…にて懸架するものである。な
お、オイルダンパ５５…は図３にて詳述する。In the rear suspension device 50, a pair of left and right swing arms 51, 51 are attached to the rear portion of the vehicle body frame 4 so as to be vertically swingable, and these swing arms 51, 5 are attached.
1 extends rearward in the traveling direction, and a swing tube 5 is provided between the swing tips.
2 and the sub-beam 5 is attached to both ends of the rocking tube 52.
3, 53 are mounted so that they can swing vertically, and these sub-beams 5
3, 53 are extended forward in the traveling direction, and intermediate wheel support shafts 54, 54 are rotatably attached to the front end of the intermediate wheel support shaft 5.
The intermediate wheels 7, 7 are attached to the tips of the motors 4, 54, and further suspended by an oil damper 55. The oil dampers 55 ... Will be described in detail with reference to FIG.
【００１５】後輪用駆動装置６０は、トランスミッショ
ン１１ａの後部から延びた推進軸６１、この推進軸６１
に自在継手６２を介して連結した差動装置６３、及び差
動装置６３に連結した左右の駆動軸６４，６４からな
り、この駆動軸６４の両端部に後輪６，６を連結した構
成である。差動装置６３及び駆動軸６４，６４は、上記
揺動管５２と同心に配置し、しかも、揺動管５２ととも
に揺動可能に連結することで、上記リヤサスペンション
装置５０の一部を構成する。そして、揺動管５２は、内
部に挿通した駆動軸６４，６４を回転可能に支持した構
成である。The rear wheel drive unit 60 includes a propulsion shaft 61 extending from the rear portion of the transmission 11a, and the propulsion shaft 61.
And a left and right drive shafts 64, 64 connected to the differential device 63, and rear wheels 6, 6 are connected to both ends of the drive shaft 64. is there. The differential device 63 and the drive shafts 64, 64 are arranged concentrically with the oscillating tube 52, and are connected to the oscillating tube 52 so as to be capable of oscillating, thereby forming a part of the rear suspension device 50. . The swing tube 52 has a configuration in which the drive shafts 64, 64 inserted therein are rotatably supported.
【００１６】図３は本発明に係るリヤサスペンション装
置の側面図であり、リヤサスペンション装置５０は、後
部フレーム４ａにオイルダンパ（ショックアブソーバ）
５５，５５を介してサブビーム５３の前端部及び後端部
を懸架したものである。ところで、サブビーム５３は、
クローラベルト９（図１参照）の張力調整が可能な構成
である。詳しくは、サブビーム５３は、オイルダンパ５
５，５５にて懸架したビーム部材５６の前部側面に、ビ
ーム延長部５７を前後スライド可能に取付け、しかも、
ビーム部材５６とビーム延長部５７とをターンバックル
５８にてスライド調整可能に連結した構成であり、ター
ンバックル５８にてクローラベルト９の張力を調整す
る。ビーム部材５６は、転輪８…を転輪支持機構７０に
て装着する。ビーム延長部５７は、前部に中間輪支軸５
４を備える。FIG. 3 is a side view of the rear suspension device according to the present invention. The rear suspension device 50 includes an oil damper (shock absorber) on the rear frame 4a.
The front end and the rear end of the sub beam 53 are suspended via 55, 55. By the way, the sub beam 53
This is a configuration in which the tension of the crawler belt 9 (see FIG. 1) can be adjusted. Specifically, the sub beam 53 is used for the oil damper 5
A beam extension 57 is attached to the front side surface of the beam member 56 suspended by 5, 55 so as to be slidable back and forth, and
The beam member 56 and the beam extension 57 are connected by a turnbuckle 58 so as to be slidably adjusted. The turnbuckle 58 adjusts the tension of the crawler belt 9. The roller member 8 is mounted on the beam member 56 by the roller supporting mechanism 70. The beam extension portion 57 has the intermediate wheel support shaft 5 at the front portion.
4 is provided.
【００１７】図４は本発明に係る転輪支持機構の断面図
であり、転輪支持機構７０は、サブビーム５３のビーム
部材５６の下面に、付勢手段としての板ばね７１の基端
を取付け、この板ばね７１を車幅方向外方に延出し、そ
の先端部に下側開放のチャンネル状のホルダ７２を左右
揺動可能に取付け、このホルダ７２に３つの転輪８…を
走行方向（この図の表裏方向）に１列に且つ回転可能に
取付けた構成である。そして、板ばね７１は、転輪８…
を常に下方（クローラベルト９の下部裏面側）に付勢す
ることにより、クローラベルト９を接地面９ｂ（路面
Ｆ）に向って押圧する。転輪８…は、図１に示す後輪６
及び中間輪７よりも小径であり、少なくとも外周部をゴ
ム材などの可撓性材料で構成する。なお、転輪８…はタ
イヤを備えた構成としてもよく、例えば、ゴム製空気入
りタイヤを備えて構成してもよい。７３は転輪８を支持
する支軸である。FIG. 4 is a sectional view of a rolling wheel support mechanism according to the present invention. In the rolling wheel support mechanism 70, the base end of a leaf spring 71 as an urging means is attached to the lower surface of the beam member 56 of the sub beam 53. , The leaf spring 71 is extended outward in the vehicle width direction, and a channel-shaped holder 72 having a lower opening is attached to the tip end of the leaf spring 71 so as to be capable of swinging to the left and right, and the three rolling wheels 8 ... It has a structure in which it is rotatably mounted in one row in the front and back directions in this figure). Then, the leaf spring 71 has the rolling wheels 8 ...
Is always urged downward (on the lower back surface side of the crawler belt 9), the crawler belt 9 is pressed toward the ground contact surface 9b (road surface F). The rolling wheels 8 ... Are the rear wheels 6 shown in FIG.
The diameter of the intermediate wheel 7 is smaller than that of the intermediate wheel 7, and at least the outer peripheral portion is made of a flexible material such as a rubber material. The rolling wheels 8 may be configured to include tires, for example, rubber pneumatic tires. Reference numeral 73 is a support shaft that supports the wheel 8.
【００１８】次に、上記構成のクローラベルト式車両１
の作用を図１に基づき説明する。前輪５を大径としたの
で、クローラベルト式車両１を雪上で走行した場合に、
雪中への前輪５の沈み深さは小さくてすむ。このため、
前輪５は雪に沈んだ部分の側面からの投影面積が小さ
い。従って、クローラベルト式車両１は、前輪５を操舵
した際の雪の抵抗が小さいので、旋回性が良い。また、
前輪５は大径なので、雪を乗越えたり掻き分けることが
容易であり、このため、クローラベルト式車両１は雪上
での走破性が良い。Next, the crawler belt type vehicle 1 having the above structure
The action of will be described with reference to FIG. Since the front wheels 5 have a large diameter, when the crawler belt type vehicle 1 travels on snow,
The depth of sinking of the front wheel 5 in the snow can be small. For this reason,
The front wheel 5 has a small projected area from the side surface of the part that is sunken. Therefore, the crawler belt type vehicle 1 has a small snow resistance when the front wheels 5 are steered, and thus has good turning performance. Also,
Since the front wheel 5 has a large diameter, it is easy to get over the snow and scrape it off. Therefore, the crawler belt type vehicle 1 has good running performance on snow.
【００１９】ところで、クローラベルト式車両１は、後
輪６及び中間輪７を前輪５と同じ大径にすることも考え
られるが、その場合にはクローラが大型化するので、車
体フレーム４も大型になる。このため、クローラベルト
式車両１は、特に後部の重量が嵩む一方、雪上での前輪
５の旋回性や走破性の向上には全く寄与しない。従っ
て、クローラベルト式車両１は、前輪５だけを大径にす
ることが、極めて有効である。In the crawler belt type vehicle 1, the rear wheels 6 and the intermediate wheels 7 may have the same large diameter as the front wheels 5, but in that case, the crawler becomes large and the body frame 4 also becomes large. become. Therefore, in the crawler belt type vehicle 1, the weight of the rear portion is particularly heavy, but it does not contribute to the improvement of the turning performance and the traveling performance of the front wheels 5 on snow. Therefore, in the crawler belt type vehicle 1, it is extremely effective to make only the front wheels 5 large in diameter.
【００２０】図５は本発明に係るクローラベルト式車両
の変形例の側面図であり、変形例のクローラベルト式車
両１は、後輪６を遊転輪とし、中間輪７を駆動輪とし、
これら後・中間輪６，７との間に１つの転輪８を介在
し、後輪６と中間輪７とにクローラベルト９を掛け渡す
ことでクローラを構成したものである。そして、中間輪
７の中心高さは、後輪６及び転輪８の中心高さより高位
である。また、前輪５の径は、クローラの全高さＨ4よ
りも大きく、このため、前輪５の全高さ寸法Ｈ3は、ク
ローラの全高さＨ4よりも大きい。なお、この変形例に
おいて、後輪６、中間輪７及び転輪８は、タイヤを備え
た構成に限定するものではなく、例えば、スプロケット
の構成でもよい。FIG. 5 is a side view of a modified example of the crawler belt type vehicle according to the present invention. In the modified crawler belt type vehicle 1, the rear wheels 6 are idle wheels and the intermediate wheels 7 are drive wheels.
One crawler wheel 8 is interposed between the rear and intermediate wheels 6 and 7, and a crawler belt 9 is stretched over the rear wheel 6 and the intermediate wheel 7 to form a crawler. The center height of the intermediate wheel 7 is higher than the center height of the rear wheels 6 and the rolling wheels 8. The diameter of the front wheel 5 is larger than the total height H 4 of the crawler, and therefore the total height dimension H 3 of the front wheel 5 is larger than the total height H 4 of the crawler. In this modified example, the rear wheels 6, the intermediate wheels 7, and the rolling wheels 8 are not limited to the configuration including tires, and may be, for example, sprocket configurations.
【００２１】リヤサスペンション装置８０は、車体フレ
ーム４の後部にサブビーム８１の中間部を上下揺動可能
に取付け、このサブビーム８１の前後両端部に後輪６及
び中間輪７を回転可能に取付け、一方、後部フレーム４
ａにオイルダンパ８２を介してサブビーム８１の後部を
懸架するものである。また、リヤサスペンション装置８
０は、サブビーム８１にスイングアーム８３を前後揺動
可能に取付け、このスイングアーム８３の垂下した先端
部に転輪８を回転可能に取付け、更に、スイングアーム
８３の先端部をオイルダンパ８４にてサブビーム８１に
懸架した構成である。この変形例によれば、前輪５の
径、すなわち全高さ寸法Ｈ3が、クローラの全高さＨ4よ
りも大きいので、クローラの全高さと同じ場合に比べ
て、雪上走行時に前輪５が雪を踏む面積は増大する。こ
のため、車両の重量が従来と同じであっても、前輪５の
沈み深さが小さくてすみ、前輪５は雪に沈んだ部分の側
面からの投影面積が小さい。従って、クローラベルト式
車両１は、前輪５を操舵した際の雪の抵抗が小さいの
で、旋回性が良い。In the rear suspension device 80, an intermediate portion of a sub beam 81 is attached to the rear portion of the vehicle body frame 4 so as to be vertically swingable, and a rear wheel 6 and an intermediate wheel 7 are rotatably attached to both front and rear end portions of the sub beam 81. , Rear frame 4
The rear part of the sub-beam 81 is suspended from a through an oil damper 82. In addition, the rear suspension device 8
In No. 0, the swing arm 83 is attached to the sub beam 81 so as to be able to swing back and forth, the rolling wheel 8 is rotatably attached to the hanging tip end of the swing arm 83, and the tip end of the swing arm 83 is attached by an oil damper 84. The structure is suspended on the sub beam 81. According to this modification, since the diameter of the front wheel 5, that is, the total height dimension H 3 is larger than the total height H 4 of the crawler, the front wheel 5 steps on the snow when traveling on snow as compared with the case where the total height of the crawler is the same. The area increases. Therefore, even if the weight of the vehicle is the same as that of the conventional vehicle, the sinking depth of the front wheel 5 is small, and the front wheel 5 has a small projected area from the side surface of the portion sinking in the snow. Therefore, the crawler belt type vehicle 1 has a small snow resistance when the front wheels 5 are steered, and thus has good turning performance.
【００２２】なお、上記実施の形態及びその変形例にお
いて、クローラベルト式車両１は、前輪５、後輪６、中
間輪７のいずれかが駆動輪であればよく、例えば、後輪
６のみ駆動、中間輪７のみ駆動、又は後輪６と中間輪７
とが駆動する構成でもよい。また、転輪８の数量は１つ
でも複数でもよい。In the above-described embodiment and its modifications, the crawler belt type vehicle 1 may have any one of the front wheels 5, the rear wheels 6, and the intermediate wheels 7 as driving wheels. For example, only the rear wheels 6 are driven. Drive only the intermediate wheel 7, or the rear wheel 6 and the intermediate wheel 7.
It may be configured such that and are driven. Further, the number of the rolling wheels 8 may be one or plural.
【００２３】[0023]
【発明の効果】本発明は上記構成により次の効果を発揮
する。請求項１記載の発明は、クローラベルトを掛け渡
した中間輪及び後輪に対して、前輪を相対的に大径とし
たので、同径の場合と比べて雪上走行時に前輪の沈み深
さが小さくてすみ、前輪は雪に沈んだ部分の側面からの
投影面積が小さい。従って、クローラベルト式車両は、
前輪を操舵した際の雪の抵抗が小さいので、旋回性が良
い。また、前輪は大径なので、雪を乗越えたり掻き分け
ることが容易であり、このため、クローラベルト式車両
は雪上での走破性が良い。更に、前輪が大径なので、前
輪用車軸や前輪周辺のフレームの最低地上高さを容易に
上げることができ、最低地上高さが上がることにより雪
上での走行性が良い。更にまた、中間輪及び後輪が前輪
よりも小径なので、クローラは短くてすみ、このため、
クローラベルト式車両は軽量であり、しかも、クローラ
回りの車高を低くできるので重心が下がり、走行安定性
が良い。The present invention has the following effects due to the above configuration. According to the invention of claim 1, the front wheel has a relatively large diameter with respect to the intermediate wheel and the rear wheel around which the crawler belt is stretched, so that the sinking depth of the front wheel when traveling on snow is larger than that in the case of the same diameter. It is small and the front wheel has a small projected area from the side of the snow-sunk part. Therefore, the crawler belt type vehicle
Since the resistance of snow when steering the front wheels is small, turning performance is good. Further, since the front wheels have a large diameter, it is easy to get over the snow and scrape it off. Therefore, the crawler belt type vehicle has good running performance on snow. Further, since the front wheels have a large diameter, it is possible to easily raise the minimum ground height of the front wheel axle and the frame around the front wheels, and by increasing the minimum ground height, the running performance on snow is good. Furthermore, since the middle wheels and the rear wheels have smaller diameters than the front wheels, the crawlers can be short, which results in
The crawler belt type vehicle is lightweight, and since the vehicle height around the crawler can be lowered, the center of gravity is lowered and the running stability is good.
【００２４】請求項２記載の発明は、クローラの全高さ
に対して、前輪を相対的に大径としたので、クローラの
全高さと同じ場合に比べて、雪上走行時に前輪の沈み深
さが小さくてすみ、前輪は雪に沈んだ部分の側面からの
投影面積が小さい。従って、クローラベルト式車両は、
前輪を操舵した際の雪の抵抗が小さいので、旋回性が良
い。また、前輪は大径なので、雪を乗越えたり掻き分け
ることが容易であり、このため、クローラベルト式車両
は雪上での走破性が良い。更に、前輪が大径なので、前
輪用車軸や前輪周辺のフレームの最低地上高さを容易に
上げることができ、最低地上高さが上がることにより雪
上での走行性が良い。更にまた、クローラの全高さが前
輪よりも低いので、クローラは短くてすみ、このため、
クローラベルト式車両は軽量であり、しかも、クローラ
回りの車高を低くできるので重心が下がり、走行安定性
が良い。According to the second aspect of the present invention, since the front wheels have a relatively large diameter with respect to the total height of the crawlers, the sinking depth of the front wheels is small when traveling on snow as compared with the case where the total height of the crawlers is the same. Tesumi and the front wheels have a small projected area from the side of the snow-sunk part. Therefore, the crawler belt type vehicle
Since the resistance of snow when steering the front wheels is small, turning performance is good. Further, since the front wheels have a large diameter, it is easy to get over the snow and scrape it off. Therefore, the crawler belt type vehicle has good running performance on snow. Further, since the front wheels have a large diameter, it is possible to easily raise the minimum ground height of the front wheel axle and the frame around the front wheels, and by increasing the minimum ground height, the running performance on snow is good. Furthermore, the total height of the crawler is lower than that of the front wheels, so the crawler can be short and therefore
The crawler belt type vehicle is lightweight, and since the vehicle height around the crawler can be lowered, the center of gravity is lowered and the running stability is good.
【図１】本発明に係るクローラベルト式車両の側面図FIG. 1 is a side view of a crawler belt type vehicle according to the present invention.
【図２】本発明に係るクローラベルト式車両の平面図FIG. 2 is a plan view of a crawler belt type vehicle according to the present invention.
【図３】本発明に係るリヤサスペンション装置の側面図FIG. 3 is a side view of a rear suspension device according to the present invention.
【図４】本発明に係る転輪支持機構の断面図FIG. 4 is a sectional view of a wheel support mechanism according to the present invention.
【図５】本発明に係るクローラベルト式車両の変形例の
側面図FIG. 5 is a side view of a modified example of the crawler belt type vehicle according to the present invention.
１…クローラベルト式車両、４…車体（車体フレー
ム）、５…前輪、６…後輪、７…中間輪、８…転輪、９
…クローラベルト、９ａ…サイドガイド部、１１…エン
ジン、４０…前輪用駆動装置、５０…リヤサスペンショ
ン装置、６０…後輪用駆動装置、７０…転輪支持機構、
７１…付勢手段（板ばね）。1 ... Crawler belt type vehicle, 4 ... Vehicle body (body frame), 5 ... Front wheel, 6 ... Rear wheel, 7 ... Intermediate wheel, 8 ... Rolling wheel, 9
... Crawler belt, 9a ... Side guide part, 11 ... Engine, 40 ... Front wheel drive device, 50 ... Rear suspension device, 60 ... Rear wheel drive device, 70 ... Rolling wheel support mechanism,
71 ... Biasing means (leaf spring).
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平７−237567（ＪＰ，Ａ) 特開 平６−199271（ＪＰ，Ａ) 特開 昭60−99775（ＪＰ，Ａ) 特開 昭56−5275（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B62D 55/02 B62D 11/02 ─────────────────────────────────────────────────── --Continued from the front page (56) Reference JP-A-7-237567 (JP, A) JP-A-6-199271 (JP, A) JP-A-60-99775 (JP, A) JP-A-56- 5275 (JP, A) (58) Fields surveyed (Int.Cl. 7 , DB name) B62D 55/02 B62D 11/02
Claims (2)
を取付け、車体（４）後部にタイヤ付き中間輪（７）及
びタイヤ付き後輪（６）を取付け、これら中間輪（７）
及び後輪（６）に可撓性材料からなるクローラベルト
（９）を掛け渡したクローラベルト式車両において、上
記前輪（５）、中間輪（７）及び後輪（６）は車体
（４）にそれぞれ左右一対備え、上記前輪（５）は、上
記中間輪（７）及び後輪（６）よりも大径のバルーンタ
イヤ付き車輪とし、車体（４）後部にエンジン（１１）
を備えたことを特徴とするクローラベルト式車両。1. A front wheel (5) with a tire on a front portion of a vehicle body (4 ).
And the intermediate wheel with tire (7) and the rear wheel with tire (6) are attached to the rear part of the vehicle body (4) , and these intermediate wheels (7)
And a crawler belt made of a flexible material for the rear wheel (6)
(9) In the crawler belt vehicle passed over the upper
The front wheel (5), the intermediate wheel (7) and the rear wheel (6) are the vehicle body.
(4), respectively left and right pair comprising the said front wheels (5), said intermediate ring (7) and having a larger diameter than the rear wheels (6) Barunta
Wheels with ears and an engine (11) at the rear of the vehicle body (4)
A crawler belt type vehicle characterized by having.
し、このクローラを、中間輪（７）及び後輪（６）に可
撓性材料からなるクローラベルト（９）を掛け渡す構成
としたクローラベルト式車両において、上記前輪
（５）、中間輪（７）及び後輪（６）は車体（４）にそ
れぞれ左右一対備え、上記前輪（５）はバルーンタイヤ
付き車輪とし、上記前輪（５）の径（Ｈ３）を上記クロ
ーラの全高さ（Ｈ４）よりも大きくし、車体（４）後部
にエンジン（１１）を備えたことを特徴とするクローラ
ベルト式車両。2. A structure in which a front wheel (5) is a tire and a rear wheel is a crawler, and a crawler belt (9) made of a flexible material is wound around the middle wheel (7) and the rear wheel (6). in the crawler belt vehicle which, the front wheel
(5), the intermediate wheel (7) and the rear wheel (6) are mounted on the vehicle body (4).
Each has a pair of left and right wheels, and the front wheels (5) are balloon tires.
And the diameter (H3) of the front wheel (5) is larger than the total height (H4) of the crawler, and the rear portion of the vehicle body (4)
A crawler belt type vehicle characterized by comprising an engine (11) in the vehicle.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33894995A JP3365894B2 (en) | 1995-12-26 | 1995-12-26 | Crawler belt type vehicle |
| CA002192398A CA2192398C (en) | 1995-12-26 | 1996-12-09 | Crawler-belt vehicle |
| US08/761,927 US5950748A (en) | 1995-12-26 | 1996-12-09 | Crawler-belt vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33894995A JP3365894B2 (en) | 1995-12-26 | 1995-12-26 | Crawler belt type vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09175446A JPH09175446A (en) | 1997-07-08 |
| JP3365894B2 true JP3365894B2 (en) | 2003-01-14 |
Family
ID=18322852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33894995A Expired - Fee Related JP3365894B2 (en) | 1995-12-26 | 1995-12-26 | Crawler belt type vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3365894B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106828634A (en) * | 2017-01-10 | 2017-06-13 | 浙江小精农机制造有限公司 | Crawler type rice transplanter walking chassis |
-
1995
- 1995-12-26 JP JP33894995A patent/JP3365894B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09175446A (en) | 1997-07-08 |
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