JP2000318407A - Wheel - Google Patents
WheelInfo
- Publication number
- JP2000318407A JP2000318407A JP11135904A JP13590499A JP2000318407A JP 2000318407 A JP2000318407 A JP 2000318407A JP 11135904 A JP11135904 A JP 11135904A JP 13590499 A JP13590499 A JP 13590499A JP 2000318407 A JP2000318407 A JP 2000318407A
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- tire
- outer peripheral
- main body
- lug
- 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.)
- Granted
Links
Landscapes
- Tires In General (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、田植機、レンコン
収穫機、湛水直播機、管理機等に使用される車輪に関す
るものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wheel used for a rice transplanter, a lotus root harvester, a direct sowing machine, a management machine, and the like.
【０００２】[0002]
【従来の技術】従来、図４〜図７に示すように、田植機
やレンコン収穫機等に使用される農用の車輪１として、
例えば、リム２にソリッドタイプのタイヤ３を固定して
成るものがある。この車輪１は、該車輪１の径方向中央
部に位置する筒状のボス４と、このボス４から車輪径方
向外方Ｄに突出する複数本の丸パイプ等からなるスポー
ク５と、これらスポーク５の車輪径方向外端部に固着さ
れた丸パイプ材等からなる円環状のリム２と、このリム
２を全周に亘って被覆するように該リム２に固着された
ゴム様弾性体で形成されたタイヤ３とから主構成されて
いるゴム焼き付け型車輪である。2. Description of the Related Art Conventionally, as shown in FIGS. 4 to 7, as an agricultural wheel 1 used for a rice transplanter, a lotus root harvester, or the like,
For example, there is one in which a solid type tire 3 is fixed to a rim 2. The wheel 1 includes a cylindrical boss 4 located at a radially central portion of the wheel 1, a plurality of round pipes 5 projecting outward from the boss 4 in the wheel radial direction D, and the like. 5, an annular rim 2 made of a round pipe material or the like fixed to the radially outer end of the wheel, and a rubber-like elastic body fixed to the rim 2 so as to cover the rim 2 over the entire circumference. This is a rubber-baked wheel mainly composed of the formed tire 3.
【０００３】前記ボス４は、車輪径方向の面に直交する
方向（車輪軸心方向Ｅ）の軸心を有していて、田植機等
の車軸に外嵌されて固定され、車軸と共に車輪１が回転
することで田植機等が走行する。タイヤ３は、リム２を
全周に亘って被覆するように該リム２に固着された環状
のタイヤ本体６を備えており、このタイヤ本体６の外周
側（接地面側）には、直進性を確保する大リブ７及び小
リブ８と、トラクションを確保するラグ９とが、それぞ
れ車輪周方向Ｇに間隔をおいて且つタイヤ本体６から一
体的に突出するように形成されている。The boss 4 has an axis in a direction (wheel axis direction E) orthogonal to a surface in the wheel radial direction, and is externally fitted and fixed to an axle of a rice transplanter or the like. The rice transplanter or the like travels by rotating. The tire 3 includes an annular tire main body 6 fixed to the rim 2 so as to cover the rim 2 over the entire circumference. The large ribs 7 and small ribs 8 for securing traction and the lugs 9 for securing traction are formed so as to be spaced apart in the wheel circumferential direction G and to project integrally from the tire body 6.
【０００４】大リブ７及び小リブ８は、タイヤ本体６の
車輪軸心方向Ｅの中央部に設けられると共に、車輪周方
向Ｇに亘って且つ交互に設けられている。ラグ９は、大
リブ７及びタイヤ本体６から一体的に突出するように、
各大リブ７の側方に位置し、且つ大リブ７の右側方（車
輪軸心方向Ｅ一側）に位置するラグ９と、大リブ９の左
側方（車輪軸心方向Ｅ他側）に位置するラグ９とが、車
輪周方向Ｇにおいて交互に配置されるように（千鳥状
に）設けられている。また、ラグ９は側面視で略三角形
状を呈しており、その車輪軸心方向端面９ａはタイヤ本
体６の車輪軸心方向Ｅ端部と面一状とされ、該端面９ａ
には、軽量化及びクッション性能の向上を目的とした凹
部１０が形成されている。The large ribs 7 and the small ribs 8 are provided at the center of the tire body 6 in the wheel axis direction E, and are provided alternately in the wheel circumferential direction G. The lug 9 protrudes integrally from the large rib 7 and the tire body 6,
A lug 9 located on the side of each large rib 7 and on the right side of the large rib 7 (one side in the wheel axis direction E) and a left side of the large rib 9 (the other side on the wheel axis direction E) The lugs 9 are provided (in a staggered manner) so as to be alternately arranged in the wheel circumferential direction G. The lug 9 has a substantially triangular shape in a side view, and the end surface 9a in the wheel axis direction is flush with the end of the tire body 6 in the wheel axis direction E.
Is formed with a recess 10 for the purpose of reducing the weight and improving the cushioning performance.
【０００５】[0005]
【発明が解決しようとする課題】前記従来の車輪１にあ
っては、該車輪１を田植機等に装着して水田等にて作業
を行った場合に（圃場走行時に）、土表面下で、ラグ９
の端面９ａに設けられた凹部１０に泥土が入るので、ラ
グ９が土表面から抜け出ると、凹部１０によって泥土が
持ち上げられることとなり、馬力損失が大となると共
に、作業終了後に車輪１を洗浄する際において、凹部１
０に詰まった泥土を取り出すのに労力を要する（特に，
凹部１０に詰まった泥土が乾燥すると取り出すのが困難
である）という問題がある。In the conventional wheel 1, when the wheel 1 is mounted on a rice transplanter or the like and the work is performed in a paddy field or the like (when running on a field), the wheel 1 is mounted under the soil surface. , Rug 9
Since the mud enters the concave portion 10 provided on the end surface 9a, when the lug 9 escapes from the soil surface, the mud is lifted by the concave portion 10, the horsepower loss increases, and the wheel 1 is washed after the work is completed. At the time, the recess 1
It takes effort to remove mud clogged with zero (especially,
If the mud clogged in the concave portion 10 dries, it is difficult to remove it.)
【０００６】また、前記従来の車輪１にあっては、圃場
走行時に、車輪周方向Ｇで隣り合うラグ９間に詰まった
泥土が持ち上げられるので、前記と同様に、馬力損失が
大となると共に、作業終了後に車輪１を洗浄する際にお
いて、ラグ９間に詰まった泥土を取り出すのに労力を要
するという問題もある。さらに、前記従来の車輪１にお
いて、タイヤ本体６の反接地側（内周側）の面は、車輪
軸心方向Ｅ中央部から外方に向かうに従って車輪径方向
外方Ｄに移行する斜面Ｆとされており、この斜面Ｆと車
輪軸心方向Ｅとの成す角度α（これを傾斜角度という）
は４０°以下とされている。In the conventional wheel 1, since mud clogged between the lugs 9 adjacent to each other in the wheel circumferential direction G is lifted during traveling in the field, the horsepower loss is increased and the In addition, when cleaning the wheel 1 after the work is completed, there is also a problem that labor is required to remove mud clogged between the lugs 9. Further, in the conventional wheel 1, the surface of the tire body 6 on the anti-ground contact side (inner peripheral side) has a slope F which shifts outward in the wheel radial direction D from the center of the wheel axial direction E toward the outside. The angle α between the slope F and the wheel axis direction E (this is referred to as a tilt angle)
Is set to 40 ° or less.
【０００７】この傾斜角度αが４０°以下であると、圃
場走行時に、前記斜面Ｆで泥を持ち上げるため、馬力損
失が大となるという問題もある。そこで、本発明は、タ
イヤによって持ち上げられる泥土を減少させると共にタ
イヤへの泥付きや泥詰まりを減少させることを目的とす
る。If the inclination angle α is less than 40 °, the mud is lifted on the slope F when traveling in a field, and there is also a problem that the horsepower loss becomes large. Accordingly, an object of the present invention is to reduce mud lifted by a tire and to reduce mud sticking and clogging of the tire.
【０００８】[0008]
【課題を解決するための手段】本発明が前記目的を達成
するために講じた第１の技術的手段は、リムに固定され
るタイヤ本体の外周側に、ラグが車輪周方向に間隔をお
いて設けられ、このラグの車輪軸心方向端面に凹部が形
成されている車輪において、前記凹部の、車輪径方向内
方側が、車輪径方向内方に向かって開放状に形成されて
いることを特徴とする。前記構成に加えて、ラグの車輪
軸心方向端面がタイヤ本体の車輪軸心方向端部よりも車
輪軸心方向外方に突出しているのがよい。The first technical means taken by the present invention to achieve the above object is that lugs are provided on the outer peripheral side of the tire body fixed to the rim at intervals in the wheel circumferential direction. The lug is provided with a recess on the end face in the wheel axis direction of the lug. The inner side of the recess in the wheel radial direction is formed to be open toward the wheel radial direction. Features. In addition to the above configuration, it is preferable that the lug axial end face protrudes outward in the wheel axial direction from the wheel axial end of the tire body.
【０００９】また、第２の技術的手段は、ゴム様弾性体
から形成されたタイヤを備え、このタイヤはリムに固定
されるタイヤ本体と、このタイヤ本体の外周側に車輪周
方向に間隔をおいて設けられたラグとを備えて構成され
ている車輪において、タイヤ本体の外周側部分が、内周
側部分よりも車輪軸心方向外方側に張り出し状とされて
いることを特徴とする。前記構成に加えて、タイヤ本体
側面の、外周側部分と内周側部分との間が、タイヤ本体
内部側に向けて凹む湾曲状に形成されているのがよい。Further, the second technical means includes a tire formed of a rubber-like elastic body, and the tire has a tire main body fixed to a rim and an outer circumferential side of the tire main body with an interval in a wheel circumferential direction. The outer peripheral portion of the tire main body is formed so as to protrude outward in the wheel axial direction from the inner peripheral portion relative to the wheel. . In addition to the above configuration, it is preferable that a portion between the outer peripheral side portion and the inner peripheral side portion of the side surface of the tire main body is formed in a curved shape that is depressed toward the inside of the tire main body.
【００１０】さらに、タイヤ本体の外周側部分の車輪軸
心方向幅をＢとし、タイヤ本体の内周側部分の車輪軸心
方向幅をＣとしたとき、Ｃ／Ｂ≦０．７となるように形
成されているのがよい。また、タイヤ本体の反接地側の
面が、車輪軸心方向中央部から外方に向かうに従って車
輪径方向外方に移行する斜面とされており、この斜面
と、車輪軸心方向との成す角度が４５°以上とされるの
がよい。Further, when the width in the wheel axial direction of the outer peripheral portion of the tire main body is B and the width in the wheel axial direction of the inner peripheral portion of the tire main body is C, C / B ≦ 0.7. It is good to be formed in. Also, the surface of the tire body on the non-ground side is a slope that shifts outward in the wheel radial direction as going outward from the center part in the wheel axis direction, and the angle formed by this slope and the wheel axis direction Is preferably 45 ° or more.
【００１１】[0011]
【発明の実施の形態】以下、本発明の実施の形態を説明
する。図１は、リム２にソリッドタイプのタイヤ３を固
着してなる車輪１のリム２及びタイヤ３の断面を示して
いる。本実施の形態における車輪１も、従来の車輪と同
様に、車輪１の径方向中央部に位置していて田植機等の
車軸に取り付けられるボスと、このボスから車輪径方向
外方Ｄに突出する複数本のスポークと、これらスポーク
の車輪径方向外端部に固着された円環状のリム２と、こ
のリム２を全周に亘って被覆するように該リム２に固着
されたゴム等の弾性体で形成されたタイヤ３とから主構
成されているゴム焼き付け型車輪である。Embodiments of the present invention will be described below. FIG. 1 shows a cross section of a rim 2 and a tire 3 of a wheel 1 in which a solid type tire 3 is fixed to a rim 2. Similarly to the conventional wheel, the wheel 1 according to the present embodiment also includes a boss located at the radial center of the wheel 1 and attached to an axle such as a rice transplanter, and protrudes outward from the boss in the wheel radial direction D. A plurality of spokes, an annular rim 2 fixed to outer ends of the spokes in the wheel radial direction, and a rubber or the like fixed to the rim 2 so as to cover the rim 2 over the entire circumference. This is a rubber-baked wheel mainly composed of a tire 3 formed of an elastic body.
【００１２】また、タイヤ３は、リム２を全周に亘って
被覆するように該リム２に固着された環状のタイヤ本体
６を備えており、このタイヤ本体６の外周側（接地面
側）には、直進性を確保する大リブ７及び小リブ８と、
トラクションを確保するラグ９とが、それぞれ車輪周方
向Ｇに間隔をおいて且つタイヤ本体６から一体的に突出
するように形成されている。これら大リブ７、小リブ８
及びラグ９の配置構成等は従来のものと略同様である。
タイヤ本体６は、車輪径方向内方Ｈ側に位置する内周側
部分６Ａと、車輪径方向外方Ｄ側に位置する外周側部分
６Ｂとに大別され、内周側部分６Ａにリム２が埋設状と
され、外周側部分６Ｂはリム２よりも車輪径方向外方Ｄ
側に位置する。The tire 3 includes an annular tire body 6 fixed to the rim 2 so as to cover the rim 2 over the entire circumference. Has a large rib 7 and a small rib 8 for securing straightness;
Lugs 9 for ensuring traction are formed at intervals in the wheel circumferential direction G and integrally project from the tire body 6. These large rib 7 and small rib 8
The arrangement and the like of the lugs 9 are substantially the same as those of the conventional one.
The tire main body 6 is roughly divided into an inner peripheral side portion 6A located on the inner side H in the wheel radial direction and an outer peripheral side portion 6B located on the outer side D in the wheel radial direction. Is buried, and the outer peripheral side portion 6B is radially outwardly D
Located on the side.
【００１３】タイヤ本体６の外周側部分６Ｂは、内周側
部分６Ａよりも車輪軸心方向Ｅ外方側に張り出し状とさ
れている。また、タイヤ本体６側面（車輪軸心方向Ｅ端
面）の車輪径方向内方Ｈ側部分（外周側部分６Ｂと内周
側部分６Ａとの間）は、外周側部分６Ｂの内周側の面１
３から内周部分６Ａの側面１４に亘って、タイヤ本体６
の内部側に向けて凹む湾曲状に（タイヤ本体６の外部に
中心をもつアール形状に）形成されている。したがっ
て、従来の車輪のタイヤ本体に比べ、この実施の形態に
おけるタイヤ本体６の外周側部分６Ｂの車輪軸心方向Ｅ
端部側の張り出し部分（図２のＪ部分）の剛性が低下し
ていて該部分の図２矢示Ｋ方向の弾性変形が容易とな
り、該張り出し部分の走行時の矢示Ｋ方向の動きによっ
て、車輪周方向Ｇで隣り合うラグ９間に詰まった泥土１
１をラグ９から効果的に剥離（離反）させることができ
ると共に、走行中に路面等からタイヤ本体６に作用する
衝撃、振動が、前記外周側部分６Ｂの張り出し部分で吸
収、緩和され、乗心地を向上させることができる。The outer peripheral portion 6B of the tire main body 6 is formed so as to protrude outward in the wheel axis direction E from the inner peripheral portion 6A. Further, the inner side H portion (between the outer peripheral portion 6B and the inner peripheral portion 6A) of the tire body 6 side surface (the end surface in the wheel axis direction E) in the wheel radial direction is an inner peripheral surface of the outer peripheral portion 6B. 1
3 to the side surface 14 of the inner peripheral portion 6A.
Is formed in a curved shape (a round shape centered on the outside of the tire body 6) recessed toward the inside of the tire body. Therefore, as compared with the tire body of the conventional wheel, the wheel axial direction E of the outer peripheral portion 6B of the tire body 6 in this embodiment is different from that of the conventional wheel.
The rigidity of the overhanging portion (the J portion in FIG. 2) on the end side is reduced, and the elastic deformation of the portion in the direction K shown in FIG. 2 is facilitated. Mud 1 clogged between lugs 9 adjacent in the wheel circumferential direction G
1 can be effectively separated (separated) from the lug 9, and shocks and vibrations acting on the tire body 6 from the road surface or the like during traveling are absorbed and mitigated by the protruding portion of the outer peripheral portion 6 </ b> B, and Comfort can be improved.
【００１４】なお、前記構成を換言すると、タイヤ本体
６の側面の車輪径方向内方Ｈ側部分に、タイヤ本体６の
内部側に向けて湾曲状に凹む窪み１７が形成されている
と言え、この窪み１７を形成することにより、ゴム量を
削減し、軽量化が図れるという効果を奏するということ
が言える。前記タイヤ本体６は、その外周側部分６Ｂの
車輪軸心方向幅をＢとし、内周側部分６Ａの車輪軸心方
向幅をＣとしたときに、Ｃ／Ｂ≦０．７となるように形
成されているのが好ましい。In other words, in other words, it can be said that a recess 17 which is concavely curved toward the inside of the tire main body 6 is formed on the inner side H side in the wheel radial direction of the side surface of the tire main body 6. It can be said that the formation of the depression 17 has an effect of reducing the amount of rubber and reducing the weight. The tire main body 6 is configured such that C / B ≦ 0.7 when the width of the outer peripheral portion 6B in the wheel axial direction is B and the width of the inner peripheral portion 6A in the wheel axial direction is C. It is preferably formed.
【００１５】なお、図１及び図２のものでは、タイヤ本
体６側面の窪み１７は、外周側部分６Ｂの内周側の面１
３から内周部分６Ａの側面１４に亘って湾曲状とされて
いるが、図３に示すように、外周側部分６Ｂの内周側の
面１３及び内周側部分６Ａの側面１４に直線部分１６を
備えているものであってもよい。また、ラグ９の車輪軸
心方向Ｅ端面９ａは、タイヤ本体６（の外周側部分６
Ｂ）の車輪軸心方向Ｅ端部よりも車輪軸心方向Ｅ外方に
突出しており、さらに詳しくは、ラグ９の車輪軸心方向
Ｅ端面９ａの車輪径方向内方Ｈ側部分が、タイヤ本体６
の外周側部分６Ｂの車輪軸心方向Ｅ端部よりも車輪軸心
方向Ｅ外方に寸法Ａだけ突出している（逆に言うと、タ
イヤ本体６の外周側部分６Ｂの車輪軸心方向Ｅ端部が、
ラグ９の車輪軸心方向Ｅ端面の車輪径方向内方側部分よ
りも寸法Ａだけ車輪軸心方向Ｅ内方に位置する）。In FIGS. 1 and 2, the recess 17 on the side of the tire body 6 corresponds to the inner surface 1 of the outer peripheral portion 6B.
3 is curved over the side surface 14 of the inner peripheral portion 6A. As shown in FIG. 3, a straight line portion is formed on the inner peripheral surface 13 of the outer peripheral portion 6B and the side surface 14 of the inner peripheral portion 6A. 16 may be provided. Further, the end surface 9a of the lug 9 in the wheel axis direction E is connected to the outer peripheral portion 6 of the tire body 6 (
The lug 9 protrudes outward in the wheel axis direction E from the end in the wheel axis direction E of B). More specifically, a portion of the lug 9 on the inner side H side in the wheel radial direction of the end surface 9a in the wheel axis direction E is a tire. Body 6
Of the outer peripheral portion 6B of the tire body 6 protrudes outward in the wheel axial direction E by the dimension A (in other words, the end of the outer peripheral portion 6B of the tire main body 6 in the wheel axial direction E). Department
The lug 9 is located on the inner side in the wheel axis direction E by the dimension A than the inner side portion of the end face in the wheel axis direction E of the lug 9).
【００１６】そして、ラグ９の車輪軸心方向Ｅ端面に形
成された凹部１０の車輪径方向内方Ｈ側が、車輪軸心方
向内方Ｈに向かって開放状とされており、水田等での作
業時において、凹部１０内に入って持ち上げられる泥土
等が、前記凹部１０の開放部分１２から排出されるよう
に構成されている。なお、タイヤ本体６の外周側部分６
Ｂの車輪軸心方向Ｅ端部と、ラグ９の車輪軸心方向Ｅ端
面の車輪径方向内方Ｈ側部分とが、略面一状とされてい
るものでは、タイヤ本体６の外周側部分６Ｂの側面の凹
部１０に対応する部分に、車輪径方向の溝を形成するこ
とで、凹部１０の車輪径方向内方Ｈ側を、車輪軸心方向
内方Ｈに向かって開放状とすることができる。The inner side H in the wheel radial direction of the concave portion 10 formed on the end face of the lug 9 in the wheel axis direction E is open toward the wheel axial direction inner H, and is used in paddy fields or the like. At the time of work, the mud or the like that is lifted by entering into the recess 10 is discharged from the open portion 12 of the recess 10. The outer peripheral portion 6 of the tire body 6
The outer peripheral portion of the tire body 6 is such that the end portion of the lug 9 in the wheel axial direction E and the end portion of the lug 9 in the wheel radial direction E are substantially flush with each other. By forming a groove in the wheel radial direction at a portion corresponding to the concave portion 10 on the side surface of 6B, the inner side H side in the wheel radial direction of the concave portion 10 is opened toward the inner side H in the wheel axial direction. Can be.
【００１７】タイヤ本体６の反接地側（内周側）の面
は、車輪軸心方向Ｅ中央部から外方に向かうに従って車
輪径方向外方Ｄに移行する斜面Ｆとされており、この斜
面Ｆと車輪軸心方向Ｅとの成す傾斜角度αは４５°以上
とされている。この傾斜角度αを４５°以上とすること
で、タイヤ本体６の内周側の面で持ち上げられる泥土を
減少させることができる。なお、本発明は、前記実施の
形態のように、ソリッドタイプのタイヤ３を備えた車輪
１に限定されることはなく、本発明を、リムに空気入り
タイヤを着脱自在に装着してなる構成の車輪に採用して
もよい。The surface of the tire body 6 on the side opposite to the ground contact side (inner peripheral side) is a slope F which shifts outward in the wheel radial direction D from the center in the wheel axis direction E toward the outside. The inclination angle α between F and the wheel axis direction E is 45 ° or more. By setting the inclination angle α to 45 ° or more, mud raised on the inner peripheral surface of the tire main body 6 can be reduced. It should be noted that the present invention is not limited to the wheel 1 provided with the solid type tire 3 as in the above embodiment, and the present invention is configured such that a pneumatic tire is detachably mounted on a rim. Wheel may be adopted.
【００１８】また、本発明とは関係のない部分の車輪１
の構成は種種設計変更可能である。Further, the wheel 1 not related to the present invention
Can be designed in various ways.
【００１９】[0019]
【発明の効果】本発明によれば、リムに固定されるタイ
ヤ本体の外周側に、ラグが周方向に間隔をおいて設けら
れ、このラグの車輪軸心方向端面に凹部が形成されてい
る車輪において、前記凹部の、車輪径方向内方側が、車
輪径方向内方に向かって開放状に形成されていることに
より、凹部による泥土の持ち上げ、及び、凹部内への土
付き、土詰まりを軽減することができ、馬力損失の軽減
を図ることができると共に、洗浄時の労力の軽減を図る
ことができる。According to the present invention, lugs are provided on the outer peripheral side of the tire body fixed to the rim at intervals in the circumferential direction, and a concave portion is formed on the end face of the lug in the wheel axial direction. In the wheel, the inside of the concave portion in the wheel radial direction is formed in an open shape toward the wheel radial direction, so that mud is lifted by the concave portion, and soiling into the concave portion, and soil clogging. Thus, the power loss can be reduced, and the labor at the time of cleaning can be reduced.
【００２０】また、ラグの車輪軸心方向端面をタイヤ本
体の車輪軸心方向端部よりも車輪軸心方向外方に突出さ
せることにより、車輪径方向内方側が車輪径方向内方に
向かって開放状とされた凹部を容易に形成できる。ま
た、ゴム様弾性体から形成されたタイヤを備え、このタ
イヤはリムに固定されるタイヤ本体と、このタイヤ本体
の外周側に周方向に間隔をおいて設けられたラグとを備
えて構成されている車輪において、タイヤ本体の外周側
部分が、内周側部分よりも車輪軸心方向外方側に張り出
し状とされていることにより、タイヤ本体の外周側部分
の側部の弾性変形が比較的容易となり、該タイヤ本体の
外周側部分の側部の走行時における動きにより、車輪周
方向に隣り合うラグ間に詰まった泥土をラグから剥離さ
せることができ、馬力損失の軽減を図ることができると
共に、洗浄時の労力の軽減を図ることができ、さらに、
走行中に路面等からタイヤに作用する衝撃、振動を効果
的に吸収、緩和でき、乗心地を向上させることができ
る。Further, by projecting the end face of the lug in the wheel axis direction outward from the end of the tire body in the wheel axis direction, the inner side in the wheel radial direction is directed inward in the wheel radial direction. An open recess can be easily formed. Further, the tire includes a tire formed of a rubber-like elastic body, and the tire includes a tire main body fixed to a rim, and lugs provided on an outer peripheral side of the tire main body at intervals in a circumferential direction. In the case of a wheel, the outer peripheral portion of the tire main body is formed so as to protrude outward in the wheel axis direction from the inner peripheral side portion, so that the elastic deformation of the outer peripheral side portion of the tire main body can be compared. The movement of the outer peripheral side portion of the tire main body during traveling makes it possible to separate mud clogged between lugs adjacent in the wheel circumferential direction from the lugs, thereby reducing horsepower loss. And at the same time reduce the labor required for cleaning.
The impact and vibration acting on the tire from the road surface or the like during traveling can be effectively absorbed and reduced, and the riding comfort can be improved.
【００２１】また、タイヤ本体側面の、外周側部分と内
周側部分との間を、タイヤ本体内部側に向けて凹む湾曲
状に形成することにより、タイヤ本体の外周側部分の側
部の剛性を適度に保持しつつ、該側部の弾性変形による
前記効果を奏することができる。また、タイヤ本体の外
周側部分の車輪軸心方向幅をＢとし、タイヤ本体の内周
側部分の車輪軸心方向幅をＣとしたとき、Ｃ／Ｂ≦０．
７となるように形成されることにより、タイヤ本体の外
周側部分の側部の剛性を適度に保持しつつ、該側部の弾
性変形による前記効果を奏することができる。Further, by forming a curved portion recessed toward the inside of the tire main body between the outer peripheral side portion and the inner peripheral side portion of the side surface of the tire main body, the rigidity of the side portion of the outer peripheral side portion of the tire main body is improved. The above-described effect due to the elastic deformation of the side portion can be exerted while maintaining a suitable value. When the width in the wheel axis direction of the outer peripheral portion of the tire body is B and the width in the wheel axis direction of the inner peripheral portion of the tire body is C, C / B ≦ 0.
By being formed to be 7, the above-mentioned effect due to the elastic deformation of the side portion can be exerted while appropriately maintaining the rigidity of the side portion of the outer peripheral portion of the tire main body.
【００２２】また、タイヤ本体の反接地側の面が、車輪
軸心方向中央部から外方に向かうに従って車輪径方向外
方に移行する斜面とされており、この斜面と、車輪軸心
方向との成す角度を４５°以上とすることにより、該斜
面による泥土の持ち上げが軽減でき、馬力損失の軽減及
び洗浄時の労力の軽減を図ることができる。Further, the surface of the tire body on the side opposite to the ground contact surface is formed as a slope which shifts outward in the wheel radial direction from the center in the wheel axis direction to the outside. By setting the angle to be 45 ° or more, lifting of mud by the slope can be reduced, thereby reducing horsepower loss and labor during washing.
【図１】本発明に係る車輪のタイヤを径方向の面で切断
した断面図である。FIG. 1 is a cross-sectional view of a tire of a wheel according to the present invention cut along a radial surface.
【図２】本発明に係る車輪のタイヤを径方向の面で切断
した断面図である。FIG. 2 is a cross-sectional view of a tire of a wheel according to the present invention, cut along a radial surface.
【図３】本発明の他の実施の形態に係る車輪のタイヤを
径方向の面で切断した断面図である。FIG. 3 is a cross-sectional view of a tire of a wheel according to another embodiment of the present invention, cut along a radial surface.
【図４】従来の車輪の側面図である。FIG. 4 is a side view of a conventional wheel.
【図５】従来の車輪のタイヤの外周側の展開平面図であ
る。FIG. 5 is a developed plan view of an outer peripheral side of a conventional wheel tire.
【図６】図４のＬ−Ｌ線矢示断面図である。FIG. 6 is a sectional view taken along line LL of FIG. 4;
【図７】図４のＭ−Ｍ線矢示断面図である。FIG. 7 is a sectional view taken along line MM of FIG. 4;
１ 車輪 ２ リム ３ タイヤ ６ タイヤ本体 ６Ａ 内周側部分 ６Ｂ 外周側部分 １０ ラグ Ｂ タイヤ本体の外周側部分の車輪軸心方向幅 Ｃ タイヤ本体の内周側部分の車輪軸心方向幅 Ｅ 車輪軸心方向 Ｄ 車輪径方向外方 Ｇ 周方向 Ｈ 車輪軸心方向内方 Ｆ 斜面 DESCRIPTION OF SYMBOLS 1 Wheel 2 Rim 3 Tire 6 Tire main body 6A Inner peripheral side part 6B Outer peripheral side part 10 Lug B Wheel axial center width of outer peripheral side part of tire main body C Wheel axial center width of inner peripheral side part of tire main body E Wheel axle Center direction D Wheel radial direction outward G Circumferential direction H Wheel axial direction inward F Slope
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｂ６０Ｃ 11/00 Ｂ６０Ｃ 11/00 Ｆ 11/11 11/08 Ｃ ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) B60C 11/00 B60C 11/00 F 11/11 11/08 C
Claims (6)
に、ラグが車輪周方向に間隔をおいて設けられ、このラ
グの車輪軸心方向端面に凹部が形成されている車輪にお
いて、 前記凹部の、車輪径方向内方側が、車輪径方向内方に向
かって開放状に形成されていることを特徴とする車輪。1. A wheel in which lugs are provided on an outer peripheral side of a tire main body fixed to a rim at intervals in a wheel circumferential direction, and a concave portion is formed on an end surface of the lug in a wheel axial direction. The wheel, characterized in that the inner side in the wheel radial direction is formed open toward the wheel radial inner side.
車輪軸心方向端部よりも車輪軸心方向外方に突出してい
ることを特徴とする請求項１記載の車輪。2. The wheel according to claim 1, wherein the end surface of the lug in the wheel axis direction protrudes outward in the wheel axis direction from the end portion of the tire body in the wheel axis direction.
え、このタイヤはリムに固定されるタイヤ本体と、この
タイヤ本体の外周側に車輪周方向に間隔をおいて設けら
れたラグとを備えて構成されている車輪において、 タイヤ本体の外周側部分が、内周側部分よりも車輪軸心
方向外方側に張り出し状とされていることを特徴とする
車輪。3. A tire formed of a rubber-like elastic body, comprising: a tire body fixed to a rim; and a lug provided on an outer peripheral side of the tire body at intervals in a wheel circumferential direction. A wheel comprising: an outer peripheral portion of a tire main body, which is formed so as to protrude outward in a wheel axial direction from an inner peripheral side portion.
部分との間が、タイヤ本体内部側に向けて凹む湾曲状に
形成されていることを特徴とする請求項３記載の車輪。4. The wheel according to claim 3, wherein a portion between the outer peripheral side portion and the inner peripheral side portion of the side surface of the tire main body is formed in a curved shape depressed toward the inside of the tire main body.
幅をＢとし、タイヤ本体の内周側部分の車輪軸心方向幅
をＣとしたとき、Ｃ／Ｂ≦０．７となるように形成され
ていることを特徴とする請求項３又は４記載の車輪。5. When the width in the wheel axial direction of the outer peripheral portion of the tire main body is B and the width in the wheel axial direction of the inner peripheral portion of the tire main body is C, C / B ≦ 0.7. 5. The wheel according to claim 3, wherein the wheel is formed.
方向中央部から外方に向かうに従って車輪径方向外方に
移行する斜面とされており、この斜面と、車輪軸心方向
との成す角度が４５°以上とされていることを特徴とす
る請求項１〜５のいずれかに記載の車輪。6. A surface of the tire body on the side opposite to the ground contact side is a slope that shifts outward in the wheel radial direction from the center in the wheel axis direction to the outside, and the slope and the wheel axis direction are different from each other. The wheel according to any one of claims 1 to 5, wherein the angle formed by the angle is 45 ° or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13590499A JP4364346B2 (en) | 1999-05-17 | 1999-05-17 | Wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13590499A JP4364346B2 (en) | 1999-05-17 | 1999-05-17 | Wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000318407A true JP2000318407A (en) | 2000-11-21 |
| JP4364346B2 JP4364346B2 (en) | 2009-11-18 |
Family
ID=15162554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13590499A Expired - Fee Related JP4364346B2 (en) | 1999-05-17 | 1999-05-17 | Wheel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4364346B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006142871A (en) * | 2004-11-16 | 2006-06-08 | Sumitomo Rubber Ind Ltd | Paddy field wheel |
| US7096904B2 (en) * | 2002-12-26 | 2006-08-29 | The Goodyear Tire & Rubber Company | Off road tire having variable width puncture preventing pads |
| JP2006231975A (en) * | 2005-02-22 | 2006-09-07 | Sumitomo Rubber Ind Ltd | Agricultural wheel |
| CN109532343A (en) * | 2019-01-07 | 2019-03-29 | 吉林大学 | A kind of bionical automatically cleaning soil-engaging component of farm tractor walking mechanism |
-
1999
- 1999-05-17 JP JP13590499A patent/JP4364346B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7096904B2 (en) * | 2002-12-26 | 2006-08-29 | The Goodyear Tire & Rubber Company | Off road tire having variable width puncture preventing pads |
| JP2006142871A (en) * | 2004-11-16 | 2006-06-08 | Sumitomo Rubber Ind Ltd | Paddy field wheel |
| JP4717417B2 (en) * | 2004-11-16 | 2011-07-06 | 住友ゴム工業株式会社 | Paddy wheel |
| JP2006231975A (en) * | 2005-02-22 | 2006-09-07 | Sumitomo Rubber Ind Ltd | Agricultural wheel |
| CN109532343A (en) * | 2019-01-07 | 2019-03-29 | 吉林大学 | A kind of bionical automatically cleaning soil-engaging component of farm tractor walking mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4364346B2 (en) | 2009-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2000318407A (en) | Wheel | |
| JP4941907B2 (en) | Running body with lugs | |
| JP2512431Y2 (en) | Agricultural wheels | |
| JP3105387B2 (en) | Paddy field vehicle wheels | |
| JP4162793B2 (en) | Agricultural wheels | |
| JP2736318B2 (en) | Paddy wheels | |
| JP3581789B2 (en) | Agricultural wheel type traveling device and agricultural wheel | |
| JPH10287101A (en) | Wheel of vehicle for paddy field | |
| JP3670606B2 (en) | Agricultural wheels | |
| JP3520125B2 (en) | Agricultural wheels | |
| JPH11321204A (en) | Farm wheel | |
| JP4354683B2 (en) | Tire for agricultural machinery | |
| JP4841067B2 (en) | Agricultural wheels | |
| JPS581127Y2 (en) | Tauekiyo Syarin | |
| JP2517502Y2 (en) | Agricultural wheels | |
| JP3520150B2 (en) | Paddy field vehicle wheels | |
| JPS59140105A (en) | Pneumatic tire for rice planting machine | |
| JP3720967B2 (en) | Paddy wheel | |
| JP2515866Y2 (en) | Agricultural wheels | |
| JP2002002230A (en) | Wheel for farm vehicle | |
| JPH0754002Y2 (en) | Agricultural wheels | |
| US3012824A (en) | Traction devices | |
| US2021265A (en) | Tractor wheel rim | |
| JPH0848103A (en) | Full rubber wheel for traveling in paddy field | |
| JPH0730401Y2 (en) | Agricultural wheels |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20051007 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080414 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080422 |
|
| A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080618 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20090818 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20090819 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120828 Year of fee payment: 3 |
|
| R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| LAPS | Cancellation because of no payment of annual fees |