JP2001113910A - Segment for vehicle - Google Patents

Segment for vehicle

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Publication number
JP2001113910A
JP2001113910A JP29910099A JP29910099A JP2001113910A JP 2001113910 A JP2001113910 A JP 2001113910A JP 29910099 A JP29910099 A JP 29910099A JP 29910099 A JP29910099 A JP 29910099A JP 2001113910 A JP2001113910 A JP 2001113910A
Authority
JP
Japan
Prior art keywords
wheel
segment
wheel rim
vehicle
tread
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.)
Pending
Application number
JP29910099A
Other languages
Japanese (ja)
Inventor
Eiji Tsuru
栄次 鶴
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP29910099A priority Critical patent/JP2001113910A/en
Publication of JP2001113910A publication Critical patent/JP2001113910A/en
Pending legal-status Critical Current

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Abstract

PROBLEM TO BE SOLVED: To smooth and facilitate climbing over a rut to improve anti- wandering performance. SOLUTION: A rubber segment 11 fixed on an outer circumferential face of a wheel rim 3 for contributing to constitution of a wheel has side wall parts 13 standingly mounted on each side part of a mounting part 12 extending to a circumferential direction of the wheel rim 3 to have both side wall parts 13 bridged by a tread part 14. A piercing hole 17 is formed to an axial direction in an inner part corresponding to both shoulder regions 14a of the tread part 14 where a hollow part 15 having approximately gate shape is piercingly mounted inside in the axial direction.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】この発明は、建設車両、土木
車両、オフロード車両等の重車両において、ホイールリ
ムの外周面に取付けられて車輪を構成するゴム製のセグ
メントに関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber segment which is mounted on an outer peripheral surface of a wheel rim to constitute a wheel in a heavy vehicle such as a construction vehicle, a civil engineering vehicle, and an off-road vehicle.

【0002】[0002]

【従来の技術】従来のこの種の車輪用セグメントとして
は、たとえば、出願人が先に特開平10−159102
号として提案したものがある。このセグメントは、図4
に断面斜視図で示すように、車輪リム31の外周面上で
周方向に順次に装着されるものであって、車輪リム31
に固定される底面部32と、この底面部32の、リム幅
方向の左右に立ち上がる側面部33と、両側面部間を結
ぶ頂面部34とを設けるとともに、これらの各部32,
33,34によって車輪リム31の周方向に延びる中空
部35を区画し、前記底面部32に、車輪リム31への
装着に供されるボルト36を、そこに埋設した補強プレ
ート37を介して設けるとともに、底面部32から中空
部35内へ突出する***部38を設けたものである。な
お図中39は、補強プレート37から突出して***部を
補強するサポータを示す。
2. Description of the Related Art A conventional wheel segment of this type is disclosed, for example, in Japanese Patent Application Laid-Open No. H10-159102.
There is a proposal for the issue. This segment is shown in FIG.
As shown in the cross-sectional perspective view, the wheel rim 31 is sequentially mounted on the outer peripheral surface of the wheel rim 31 in the circumferential direction.
, A side surface portion 33 of the bottom surface portion 32 that rises to the left and right in the rim width direction, and a top surface portion 34 that connects between the both side surface portions.
A hollow portion 35 extending in the circumferential direction of the wheel rim 31 is defined by 33 and 34, and a bolt 36 to be mounted on the wheel rim 31 is provided on the bottom surface portion 32 via a reinforcing plate 37 embedded therein. In addition, a protruding portion 38 protruding from the bottom portion 32 into the hollow portion 35 is provided. In the drawing, reference numeral 39 denotes a supporter projecting from the reinforcing plate 37 and reinforcing the raised portion.

【0003】このような構成のセグメントを適用してな
る車輪では、走行中の重車両の垂直方向のばね特性を、
車輪リム31の周方向に延びる中空部35の作用の下に
柔らかくすることで、車両への乗心地を高めるととも
に、突起乗越し時の衝撃を緩和することができ、また、
車両の荷役作業中の負荷の作用に当たっては、頂面部3
4の***部38への当接により、車輪の余剰の圧潰変形
を防止できる一方、負荷の解放に際しては、中空部壁面
と***部周面との摩擦によるエネルギー吸収に基づき、
車体に生じる振動を有効に減衰させることができる。
[0003] In a wheel to which a segment having such a configuration is applied, the vertical spring characteristic of a heavy vehicle during traveling is determined by:
By softening under the action of the hollow portion 35 extending in the circumferential direction of the wheel rim 31, it is possible to enhance the ride comfort to the vehicle and to reduce the impact at the time of going over the projection,
When applying the load during the cargo handling work of the vehicle, the top surface 3
The contact of the wheel 4 with the raised portion 38 can prevent excessive crushing deformation of the wheel, while releasing the load, based on the energy absorption due to friction between the hollow portion wall surface and the raised portion peripheral surface,
Vibration generated in the vehicle body can be effectively attenuated.

【0004】[0004]

【発明が解決しようとする課題】ところが、従来のセグ
メントを適用したこのような車輪にあっては、それを装
着した車両が、一般路面や作業現場の硬質路面に形成さ
れた轍内を比較的高速で走行しながらその轍から抜け出
すに当たり、車両のオペレータの意図とは無関係に車両
が左右に振られる、いわゆる、ワンダリング現象の発生
が激しく、それがオペレータに余分な疲労を強いること
になり、ときには、事故の発生原因にもなるおそれがあ
った。
However, in the case of such a wheel to which the conventional segment is applied, a vehicle equipped with the wheel relatively moves in a rut formed on a general road surface or a hard road surface at a work site. When getting out of the rut while traveling at high speed, the vehicle is swung right and left irrespective of the intention of the vehicle operator, so-called wandering phenomenon is severe, which forces the operator to excess fatigue, Occasionally, it could cause an accident.

【0005】この発明は、従来技術が抱えるこのような
問題点を解決することを課題とするものであり、それの
目的とするところは、車輪の轍乗越しを円滑かつ容易な
らしめて耐ワンダリング性を大きく向上させることがで
きる車輪用セグメントを提供するにある。
SUMMARY OF THE INVENTION An object of the present invention is to solve such a problem of the prior art, and an object of the present invention is to make it easy and easy for a wheel to cross a rut to prevent wandering. An object of the present invention is to provide a wheel segment capable of greatly improving the performance.

【0006】[0006]

【課題を解決するための手段】この発明の車輪用セグメ
ントは、ホイールリムの外周面に固定されて車輪の構成
に寄与するゴム製のセグメントであり、ホイールリムの
周方向に延びる装着部のそれぞれの側部に側壁部を立設
し、これらの両側壁部を踏面部で架橋するとともに、内
部にほぼ門形の中空部を軸線方向に貫通させて設けたと
ころにおいて、踏面部の両ショルダ域と対応する内部部
分に、軸線方向の貫通孔を設けたものである。
The wheel segment according to the present invention is a rubber segment fixed to the outer peripheral surface of the wheel rim and contributing to the configuration of the wheel, and each of the mounting portions extending in the circumferential direction of the wheel rim. Side walls are erected on the sides of the tread, and both side walls are bridged by treads, and a substantially portal-shaped hollow portion is provided in the interior so as to penetrate in the axial direction. Are provided with through-holes in the axial direction in the internal portion corresponding to.

【0007】このような車輪用セグメントをホイールリ
ムの全周にわたって装着してなる車輪では、従来技術述
べたと同様に、ほぼ門形の中空部の作用下で、すぐれた
走行乗心地を確保するとともに、突起乗越し時の衝撃を
緩和することができ、また、門形中空部の区画に寄与す
る突部の作用下で、負荷の作用時の、車輪の余剰の圧潰
変形を阻止するとともに、負荷の解放時の、中空部壁面
と突部周面との摩擦によるエネルギー吸収によって、車
体に生じる振動を有効に減衰させることができる。
In a wheel in which such a wheel segment is mounted around the entire circumference of a wheel rim, excellent running comfort is ensured under the action of a substantially portal-shaped hollow portion, as described in the prior art. In addition, it is possible to alleviate the impact at the time of going over the projection, and to prevent the excessive crushing deformation of the wheel under the action of the load under the action of the projection contributing to the section of the portal hollow, Vibration generated in the vehicle body can be effectively attenuated by energy absorption due to friction between the hollow portion wall surface and the protrusion peripheral surface when the vehicle is released.

【0008】しかもここでは、踏面部の両ショルダ域と
対応する内部部分に、軸線方向の貫通孔を設けて、車輪
の轍傾斜面への乗り上げに当たって、その傾斜面側の貫
通孔を潰れ変形させることで、傾斜面の上方に向く、い
わゆるキンバースラストを増大させることができ、これ
により、小さなハンドル操舵力をもって、円滑にかつ容
易に轍を乗越すことが可能となる。従って、この車輪用
セグメントでは、耐ワンダリング性が大きく高まり、オ
ペレータの疲労を有効に軽減し、また、事故の発生のお
それを十分に取り除くことができる。
In this case, an axial through hole is provided in an inner portion corresponding to both shoulder areas of the tread portion, and when the wheel runs on the rut slope, the through hole on the slope side is crushed and deformed. As a result, the so-called kimber thrust facing upward on the inclined surface can be increased, and thereby, it is possible to smoothly and easily cross the rut with a small steering wheel steering force. Therefore, in this wheel segment, the wandering resistance is greatly increased, the fatigue of the operator can be effectively reduced, and the possibility of occurrence of an accident can be sufficiently eliminated.

【0009】[0009]

【発明の実施の形態】以下にこの発明の実施の形態を図
面に示すところに基づいて説明する。図1は、この発明
の実施の形態をホイールとの関連で示す断面斜視図であ
り、図中1はホイールを示し、このホイール1は、ホイ
ールディスク2およびホイールリム3からなる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a sectional perspective view showing an embodiment of the present invention in relation to a wheel. In the drawing, reference numeral 1 denotes a wheel, and the wheel 1 includes a wheel disc 2 and a wheel rim 3.

【0010】ここで、全体として円筒状をなすホイール
リム3の、平滑な外周面上に固定されるゴム製の車輪用
セグメント11は、ホイールリム3の周方向に延びてそ
こに取付けられる装着部12を具えるとともに、この装
着部12のそれぞれの側部に立設した側壁部13およ
び、これらの両側壁部13を架橋する踏面部14を具
え、そして内部に、踏面部側へ窪むほぼ門形の中空部1
5を具える。なおここでは、装着部12から踏面部側へ
突出する突部16を、門形中空部15の区画に寄与させ
ているも、これとは逆に、踏面部側から装着部側へ突出
する突部をもって、装着部側へ窪む門形中空部の区画に
寄与させることもできる。
Here, a rubber wheel segment 11 fixed on a smooth outer peripheral surface of the wheel rim 3 having a cylindrical shape as a whole has a mounting portion extending in the circumferential direction of the wheel rim 3 and attached thereto. 12 and a side wall portion 13 erected on each side of the mounting portion 12 and a tread portion 14 bridging the both side wall portions 13. Gate-shaped hollow part 1
5 is provided. Here, the projection 16 projecting from the mounting portion 12 to the tread portion side contributes to the section of the gate-shaped hollow portion 15, but conversely, the projection protruding from the tread portion side to the mounting portion side. The portion can also contribute to the section of the gate-shaped hollow portion that is depressed toward the mounting portion.

【0011】さらにこのセグメント11では、踏面部1
4のそれぞれのショルダ域14aと対応する部分で、ゴ
ム質内に、軸線方向の貫通孔17を設け、好ましくは、
貫通孔17の輪郭形状をショルダ域14aの表面輪郭に
ほぼ沿った形状とする。
Further, in this segment 11, the tread 1
4, a portion corresponding to each shoulder region 14 a is provided with an axial through hole 17 in the rubber material, preferably,
The outline shape of the through hole 17 is set to a shape substantially along the surface outline of the shoulder region 14a.

【0012】ところで、装着部12には、ホイールリム
3の外周面と同心円の半径の下で、その外周面の延在方
向に延びる剛性プレート18を埋設するとともに、この
剛性プレート18に、ホイールリム側へ突出する取付け
ボルト19を固設することが好ましく、この場合、剛性
プレート18は、図示のようにその全体を完全に埋め込
むことの他、その内周面を露出させることもできる。ま
た、踏面部14の少なくとも両側域には、図示はしない
が、複数本のラグを設けることによって、駆動および制
動性能の向上を図ることが好ましい。
By the way, a rigid plate 18 extending in the direction in which the outer peripheral surface extends under a radius concentric with the outer peripheral surface of the wheel rim 3 is embedded in the mounting portion 12. It is preferable to fix the mounting bolt 19 protruding to the side. In this case, the rigid plate 18 can completely embed the whole as shown in the figure, or can expose the inner peripheral surface thereof. Although not shown, at least in both side regions of the tread portion 14, it is preferable to improve driving and braking performance by providing a plurality of lugs.

【0013】このように構成してなるセグメント11
は、その複数個、たとえば6〜10個を一組として、ホ
イールリム3の外周面上に相互の突き合わせ状態で隙間
なく配置するとともに、各取付けボルト19をナット2
0によってリム3に締付け固定することで車輪を構成す
ることができ、この車輪は、車両の一般走行に当たって
は、中空部15の作用の下で、前述したように、すぐれ
た乗心地と緩衝機能とをもたらし、また、ローディング
その他の荷役作業に当たっての負荷の作用に対しては、
突部16のストッパ作用をもって車輪の余剰の圧潰変形
を防止し、一方、負荷の解放に際しては、突部16と中
空部壁面との摩擦に基づくエネルギー吸収によって車体
の振動を有効に減衰させる。
The segment 11 configured as described above
Are arranged as a set of a plurality of them, for example, 6 to 10 pieces, on the outer peripheral surface of the wheel rim 3 in a mutually butted state with no gap therebetween, and each mounting bolt 19 is attached to the nut 2.
0, it is possible to form a wheel by tightening and fixing to the rim 3, and this wheel, under the action of the hollow portion 15, has excellent riding comfort and cushioning function as described above under the action of the hollow portion 15 during normal running of the vehicle. And for the effects of loading during loading and other cargo handling operations,
Excessive crushing deformation of the wheels is prevented by the stopper function of the projection 16, while, when the load is released, vibration of the vehicle body is effectively attenuated by energy absorption based on friction between the projection 16 and the wall of the hollow portion.

【0014】しかもこの車輪は、轍傾斜面上を乗越す場
合に、貫通孔17の存在の故に、踏面部13の、上り傾
斜面上に位置する部分が、図2に例示するように、重車
両がもたらす大きな負荷荷重Lの下で、水平面上に位置
する部分に比してはるかに大きく潰れ変形して、高いク
ラッシング作用をもたらすとともに、その大きな潰れ変
形に起因する側壁部13の大きな膨出変形をもたらすこ
とになり、これにより、車輪、直接的にはセグメント1
1の接地面輪郭形状が、図3(a)に示すように、水平
面から上り傾斜面側に向けて、その上り傾斜面上の接地
端縁に至るまで大きく膨らむことになるので、その車輪
には、上り傾斜面の上方に向く大きなキャンバースラス
トCTが発生することになる。
In addition, when the vehicle crosses over the rutted slope, the portion of the tread 13 located on the uphill is heavy due to the presence of the through hole 17 as shown in FIG. Under a large load L caused by the vehicle, the crushing deformation is much larger than that of the portion located on the horizontal plane, and a high crushing action is caused. Out of the way, which results in the wheel, directly in segment 1
As shown in FIG. 3A, the contour shape of the ground contact surface 1 swells greatly from the horizontal plane to the upward slope surface side to the ground edge on the upward slope surface. Means that a large camber thrust CT pointing upward on the upward slope is generated.

【0015】ここで、このキャンバースラストCTは、
図2に示すところにおいて、車輪への負荷荷重Lの分力
としてその車輪に作用して、それを轍の底に引き戻す方
向の力fを有利に相殺すべく機能することになるので、
車輪の轍乗越しを通常のハンドリング操作によって円滑
かつ容易に行うことが可能となり、ワンダリング現象の
発生が効果的に抑制されることになる
Here, this camber thrust CT is
In the place shown in FIG. 2, since it acts on the wheel as a component force of the load L applied to the wheel, and functions to advantageously offset the force f in the direction of pulling it back to the bottom of the rut,
It is possible to smoothly and easily move over the wheel rut by a normal handling operation, and the occurrence of the wandering phenomenon is effectively suppressed.

【0016】しかるに、図4に示す従来のセグメントで
は、かかる場合のクラッシング作用が不十分であって、
踏面部の、上り傾斜面上での潰れ度合は、水平面上での
それと大差なく、このときの接地面輪郭形状は、図3
(b)に示すように、傾斜面上と、水平面上との間でほ
とんど差異が生じない。
However, in the conventional segment shown in FIG. 4, the crushing action in such a case is insufficient.
The degree of crushing of the tread on the upward slope is not much different from that on the horizontal plane.
As shown in (b), there is almost no difference between the inclined plane and the horizontal plane.

【0017】従って、この従来のセグメントを用いた車
輪では、キャンバースラストCTが極めて小さく、それ
を、車輪の引きもどし分力fの相殺のために有効に寄与
させ得べくもなく、それ故に、車輪の轍乗越しのため
に、大きな操舵力の下に、より大きなスリップアングル
を付与することが必要になり、この結果として、轍脱出
直後の車両が必要以上に横に振られるワンダリング現象
が不可避であった。
Therefore, in the wheel using the conventional segment, the camber thrust CT is extremely small, and it cannot be effectively contributed to offset the wheel retraction component f. It is necessary to give a larger slip angle under a large steering force to get over the rut, and as a result, the wandering phenomenon that the vehicle immediately after exiting the rut is swung more than necessary is inevitable Met.

【0018】[0018]

【発明の効果】かくして、この発明によれば、車両の良
好な乗心地性能、突起乗越し時の優れた衝撃緩和性、車
輪の余剰の圧潰変形防止性、負荷解放時における車両の
優れた振動減衰特性など、従来のセグメントが有する性
能を十分に保持した上で、優れた耐ワンダリング性をも
たらすことができる。
As described above, according to the present invention, good ride comfort of a vehicle, excellent shock relaxation when riding over a protrusion, prevention of excessive crushing deformation of wheels, and excellent vibration of a vehicle when a load is released. Excellent wandering resistance can be provided while sufficiently retaining the performance of the conventional segment such as the damping characteristic.

【図面の簡単な説明】[Brief description of the drawings]

【図1】 この発明の実施の形態を示す断面斜視図であ
る。
FIG. 1 is a sectional perspective view showing an embodiment of the present invention.

【図2】 轍乗越し時のセグメントの変形態様を示す横
断面図である。
FIG. 2 is a cross-sectional view showing a modified form of a segment when crossing a rut.

【図3】 セグメントの接地面輪郭線を示す図である。FIG. 3 is a diagram showing a contour of a ground contact surface of a segment.

【図4】 従来技術を示す断面斜視図である。FIG. 4 is a sectional perspective view showing a conventional technique.

【符号の説明】[Explanation of symbols]

3 ホイールリム 11 車輪用セグメント 12 装着部 13 側壁部 14 踏面部 14a ショルダ域 15 中空部 16 突部 17 貫通孔 18 剛性プレート 19 取付けボルト 20 ナット L 負荷荷重 CT キャンバースラスト f 引き戻し分力 Reference Signs List 3 wheel rim 11 wheel segment 12 mounting portion 13 side wall portion 14 tread portion 14a shoulder region 15 hollow portion 16 protrusion 17 through hole 18 rigid plate 19 mounting bolt 20 nut L load load CT camber thrust f pull-back force

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 ホイールリムの外周面に固定されて車輪
の構成に寄与するゴム製のセグメントであり、ホイール
リムの周方向に延びる装着部のそれぞれの側部に側壁部
を立設し、これらの両側壁部を踏面部で架橋するととも
に、内部にほぼ門形の中空部を軸線方向に貫通させて設
けたところにおいて、 踏面部の両ショルダ域と対応する内部部分に、軸線方向
の貫通孔を設けたことを特徴とする車輪用セグメント。
1. A rubber segment which is fixed to an outer peripheral surface of a wheel rim and contributes to the configuration of a wheel, and has side walls erected on respective side portions of a mounting portion extending in a circumferential direction of the wheel rim. The two side walls of the tread are bridged by treads, and a substantially gate-shaped hollow portion is penetrated in the axial direction inside, and an axial through hole is formed in the inner part corresponding to both shoulder areas of the treads. A wheel segment comprising:
JP29910099A 1999-10-21 1999-10-21 Segment for vehicle Pending JP2001113910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29910099A JP2001113910A (en) 1999-10-21 1999-10-21 Segment for vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29910099A JP2001113910A (en) 1999-10-21 1999-10-21 Segment for vehicle

Publications (1)

Publication Number Publication Date
JP2001113910A true JP2001113910A (en) 2001-04-24

Family

ID=17868158

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29910099A Pending JP2001113910A (en) 1999-10-21 1999-10-21 Segment for vehicle

Country Status (1)

Country Link
JP (1) JP2001113910A (en)

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