JP2871192B2 - Crawler core metal and elastic crawler - Google Patents
Crawler core metal and elastic crawlerInfo
- Publication number
- JP2871192B2 JP2871192B2 JP19211891A JP19211891A JP2871192B2 JP 2871192 B2 JP2871192 B2 JP 2871192B2 JP 19211891 A JP19211891 A JP 19211891A JP 19211891 A JP19211891 A JP 19211891A JP 2871192 B2 JP2871192 B2 JP 2871192B2
- Authority
- JP
- Japan
- Prior art keywords
- crawler
- projection
- guide
- projections
- elastic
- 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 - Lifetime
Links
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建設、土木、農業など
の無限軌道車に使用されるクローラ用芯金及び弾性クロ
ーラに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crawler core metal and an elastic crawler used for a tracked vehicle such as construction, civil engineering, and agriculture.
【０００２】[0002]
【従来の技術】例えば、鉄製クローラに代えて履き換え
使用するのに有用な履き換え用弾性クローラは、弾性材
料で形成されたクローラ本体にクローラ周方向（以下周
方向と略称する）等間隔に芯金を埋設し、各芯金に左右
一対の突起部をクローラ内周側に突出形成しており、突
起部の頂面が駆動輪、転動輪などが通る車輪通過面とな
っている。2. Description of the Related Art For example, a changeable elastic crawler which is useful for changing and replacing a crawler made of iron is provided on a crawler body formed of an elastic material at equal intervals in a crawler circumferential direction (hereinafter abbreviated as a circumferential direction). A core bar is buried, and a pair of left and right protrusions are formed on each core bar so as to protrude toward the inner peripheral side of the crawler. The top surface of the protrusion is a wheel passing surface through which driving wheels, rolling wheels, and the like pass.
【０００３】従来の芯金は、左右一対の突起部が同一長
さで、それぞれは継ぎ目のない一つの車輪通過面を形成
しており、このような芯金を使用した弾性クローラにお
いて、周方向に隣合う芯金の突起部間での転動輪の落ち
込みを少なくし、振動を減少させるために、左右突起部
を周方向にずらして千鳥状に配置し、各周方向の突起部
間にゴム突起を設け、このゴム突起を突起部より若干高
く突出したものがある（特開昭６３ー２５８２７７号公
報）。A conventional cored bar has a pair of left and right protrusions having the same length, each of which forms one seamless wheel passage surface. The left and right protrusions are staggered in the circumferential direction to reduce the drop of the rolling wheel between the protrusions of the adjacent metal cores and reduce the vibration. In some cases, a projection is provided, and the rubber projection protrudes slightly higher than the projection (JP-A-63-258277).
【０００４】[0004]
【発明が解決しようとする課題】前記従来技術では、１
個の芯金における左右各突起部は、一つの車輪通過面を
形成するために大きい部分を必要とし、芯金重量が重く
なっていると共に、芯金間にゴム突起を形成するため
に、突起部の周方向長さが短くなり、且つ芯金間に突起
部間空間がないため、駆動輪等に巻き付いたり石に乗り
上げたときに、円滑な変形をすることが困難になること
がある。In the above prior art, 1
Each of the left and right projections of the cored bar requires a large portion to form one wheel passing surface, and the weight of the cored bar is heavy, and a projection is formed to form a rubber projection between the cored bars. Since the circumferential length of the portion is short and there is no space between the protruding portions between the metal cores, it may be difficult to smoothly deform when winding around a drive wheel or climbing on a stone.
【０００５】本発明の第１の目的は、左右各突起部に周
方向に離れた前後ガイド突起を形成し、一方のガイド突
起間谷間を他方の前後一方のガイド突起と側面視におい
てオーバラップさせることにより、軽量にでき且つ車輪
通過面を長くできるようにしたクローラ用芯金を提供す
ることである。本発明の第２の目的は、前記芯金の前後
ガイド突起間にクローラ本体と一体の弾性突起を設け、
この弾性突起を突起部の車輪通過面よりも高く突出させ
ることにより、車輪が突起部上にある場合でも振動を減
少できるようにした弾性クローラを提供することであ
る。A first object of the present invention is to form front and rear guide projections which are circumferentially separated from each other on each of the left and right projections so that a valley between one guide projection and the other one of the front and rear guide projections overlap in a side view. Accordingly, an object of the present invention is to provide a crawler core bar that can be reduced in weight and can have a longer wheel passage surface. A second object of the present invention is to provide an elastic projection integral with the crawler body between the front and rear guide projections of the metal core,
An object of the present invention is to provide an elastic crawler in which the elastic projection is made to protrude higher than the wheel passage surface of the projection so that vibration can be reduced even when the wheel is on the projection.
【０００６】本発明の第３の目的は、一方の突起部のガ
イド突起間谷間を他方の突起部のガイド突起とオーバラ
ップさせ、且つ左右一方の突起部間空間を他方の突起部
のガイド突起と側面視においてオーバラップさせること
により、左右突起部でクローラ全周にわたる切れ目のな
い車輪通過面を形成でき、且つクローラの円滑な変形を
保障できようにした弾性クローラを提供することであ
る。A third object of the present invention is to make the valley between the guide projections of one projection overlap with the guide projection of the other projection, and to allow the space between one of the left and right projections to be the guide projection of the other projection. The present invention is to provide an elastic crawler that can form a continuous wheel passing surface over the entire circumference of the crawler by the left and right projections by overlapping the crawler in a side view, and can ensure smooth deformation of the crawler.
【０００７】[0007]
【課題を解決するための手段】本発明における課題解決
のための第１の具体的手段は、クローラ本体３内にクロ
ーラ周方向Ａ等間隔に埋設されていて、その頂部が車輪
通過面４となるべくクローラ内周側に突出した左右１組
の突起部５、６を有し、この左右突起部５、６がクロー
ラ周方向Ａにずれているクローラ用芯金において、前記
各突起部５、６はクローラ周方向Ａに離れた前後１組の
ガイド突起Ｆ、Ｒを有し、一方の突起部のガイド突起間
谷間７は他方の突起部の前後ガイド突起Ｆ、Ｒの一方と
側面視において略全幅がオーバラップしていることであ
る。The first concrete means for solving the problems in the present invention is embedded in the crawler body 3 at equal intervals in the crawler circumferential direction A, and the tops thereof are in contact with the wheel passing surface 4. Preferably, the crawler core bar has a pair of left and right protrusions 5 and 6 protruding toward the crawler inner peripheral side, and the left and right protrusions 5 and 6 are displaced in the crawler circumferential direction A. Has a pair of front and rear guide protrusions F and R separated in the crawler circumferential direction A, and a valley 7 between the guide protrusions of one of the protrusions is substantially in one side view with one of the front and rear guide protrusions F and R of the other protrusion. That is, the entire widths overlap.
【０００８】本発明における課題解決のための第２の具
体的手段は、弾性材料製クローラ本体３内にクローラ周
方向Ａ等間隔に芯金１を埋設し、各芯金１間に駆動スプ
ロケット係合用の係合孔８を形成し、前記各芯金１にク
ローラ内周側に突出する左右１組の突起部５、６を形成
し、この左右突起部５、６をクローラ周方向Ａにずらす
と共にその頂部を車輪通過面４とした弾性クローラにお
いて、前記各芯金１の左右突起部５、６はクローラ周方
向Ａに離れた前後１組のガイド突起Ｆ、Ｒを有し、一方
の突起部のガイド突起間谷間７は他方の突起部の前後ガ
イド突起Ｆ、Ｒの一方と側面視において略全幅がオーバ
ラップしており、このガイド突起間谷間７にクローラ本
体３と一体の弾性突起１０を設け、この弾性突起１０の
頂部を車輪通過面４よりも高く突出させていることであ
る。A second concrete means for solving the problem in the present invention is to embed the metal cores 1 at equal intervals in the crawler circumferential direction A in the crawler body 3 made of an elastic material, and to drive the sprockets between the metal cores 1. A pair of engaging holes 8 are formed, and a pair of left and right projections 5 and 6 projecting toward the inner peripheral side of the crawler are formed in the cored bar 1, and the left and right projections 5 and 6 are shifted in the crawler circumferential direction A. In addition, in an elastic crawler having a top portion as a wheel passing surface 4, the left and right protrusions 5 and 6 of each cored bar 1 have a pair of front and rear guide protrusions F and R separated in a crawler circumferential direction A. The guide projection valley 7 of the portion has substantially the same overall width as one of the front and rear guide projections F and R of the other projection in side view, and the guide projection valley 7 has an elastic projection 10 integrated with the crawler body 3. And the top of this elastic projection 10 is It is that you have to protrude higher than.
【０００９】本発明における課題解決のための第３の具
体的手段は、クローラ周方向Ａに隣合う芯金１間に形成
される左右一方の突起部の突起部間空間１１は、他方の
突起部の一つのガイド突起と側面視において略全幅がオ
ーバラップしていることである。The third concrete means for solving the problem in the present invention is that the space 11 between the left and right protrusions formed between the cores 1 adjacent in the crawler circumferential direction A is different from the other protrusion. One of the guide projections of the portion overlaps substantially the entire width in a side view.
【００１０】[0010]
【作用】クローラ本体３に埋設される芯金１は、左右突
起部５、６が前後１組のガイド突起Ｆ、Ｒを有し、その
ガイド突起Ｆ、Ｒ間はガイド突起間谷間７となっている
ため、ガイド突起間谷間７に相当する分だけ重量が軽減
されている。左右一方のガイド突起間谷間７は、他方の
突起部の前後ガイド突起Ｆ、Ｒの一方と側面視において
略全幅がオーバラップしていて、左右突起部５、６は互
いに補いあって長い車輪通過面４を形成する。The core bar 1 embedded in the crawler body 3 has a pair of left and right protrusions 5 and 6 having a pair of front and rear guide protrusions F and R, and a gap 7 between the guide protrusions F and R. Therefore, the weight is reduced by an amount corresponding to the valley 7 between the guide projections. One of the left and right guide projection valleys 7 substantially overlaps with one of the front and rear guide projections F and R of the other projection in a side view, and the left and right projections 5 and 6 complement each other and pass through a long wheel. Surface 4 is formed.
【００１１】弾性クローラ２は芯金１の左右各突起部
５、６のガイド突起間谷間７に、クローラ本体３と一体
の弾性突起１０を有し、この弾性突起１０の頂部を車輪
通過面４よりも高く突出させていて、車輪１５が一方の
突起部のガイド突起に乗り上げるとき他方の突起部の弾
性突起１０にも同時に乗ることになり、左右突起部５、
６のガイド突起Ｆ、Ｒに同時に乗る場合よりも、剛性が
低下し、弾性突起１０を圧縮するために振動が減少し、
且つ金属音も低減する。The elastic crawler 2 has an elastic projection 10 integral with the crawler body 3 in a valley 7 between the guide projections of each of the left and right projections 5 and 6 of the cored bar 1. When the wheel 15 rides on the guide protrusion of one of the protrusions, it also rides on the elastic protrusion 10 of the other protrusion at the same time.
6, the rigidity is lower than when the guide protrusions F and R are simultaneously mounted, and the vibration is reduced to compress the elastic protrusions 10,
In addition, metal noise is reduced.
【００１２】弾性クローラ２はクローラ周方向Ａの一方
の突起部の突起部間空間１１が、他方の突起部の一つの
ガイド突起と側面視において略全幅がオーバラップして
いて、クローラ周方向Ａにクローラ全周にわたる切れ目
のない車輪通過面４が形成され、車輪１５が常に左右ど
ちらかの突起部５、６上に位置し、落ち込みを生じな
く、車輪１５が左右同時に突起部間谷間１１に落ち込む
場合よりも、剛性が高くなる。In the elastic crawler 2, the inter-projection space 11 of one of the projections in the crawler circumferential direction A substantially overlaps with one guide projection of the other protrusion in a side view, and the crawler circumferential direction A A continuous wheel passing surface 4 is formed over the entire crawler, and the wheel 15 is always located on one of the left and right projections 5 and 6 without dropping. Rigidity is higher than when falling.
【００１３】[0013]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１〜８に示す第１実施例において、２は鉄製ク
ローラと履き換え可能な弾性クローラで、スプロケット
製の駆動輪、從動輪及び複数個の転動輪等の車輪１５に
巻き掛けられている。この弾性クローラ２は、ゴム、合
成樹脂などの弾性材料で形成されたクローラ本体３に、
クローラ周方向Ａ等間隔に金属又は合成樹脂などで形成
された芯金１を埋設すると共に、芯金１より接地面側に
スチールなどで形成された左右一対の周方向抗張体１６
を埋設しており、クローラ本体２には幅方向中央で且つ
芯金１間に駆動輪が係合する係合孔８が形成され、接地
面に周方向等間隔にラグ９が一体成形されている。Embodiments of the present invention will be described below with reference to the drawings. In the first embodiment shown in FIGS. 1 to 8, reference numeral 2 denotes an elastic crawler that can be replaced with an iron crawler, which is wound around wheels 15 such as a driving wheel, a driven wheel, and a plurality of rolling wheels made of sprockets. The elastic crawler 2 has a crawler body 3 formed of an elastic material such as rubber or synthetic resin.
A core bar 1 made of metal or synthetic resin is embedded at equal intervals in the crawler circumferential direction A, and a pair of left and right circumferential tensile members 16 formed of steel or the like on the grounding surface side of the core bar 1.
An engaging hole 8 is formed in the crawler body 2 at the center in the width direction and between the metal cores 1 so that the driving wheels are engaged. Lugs 9 are integrally formed on the ground contact surface at equal circumferential intervals. I have.
【００１４】前記各芯金１には左右１組の突起部５、６
が一体成形され、クローラ内周側に突出形成されてお
り、この突起部５、６の頂面が転動輪等の車輪１５が転
動する平坦な車輪通過面４となっている。各芯金１は左
右翼部１７が周方向Ａ同一位置にあり、これに対して、
左右突起部５、６が周方向Ａに互いに逆方向にずれてい
る。A pair of left and right protrusions 5 and 6 are provided on each of the cores 1.
Are integrally formed and formed so as to protrude toward the inner peripheral side of the crawler. The top surfaces of the projections 5 and 6 are flat wheel passing surfaces 4 on which wheels 15 such as rolling wheels roll. Each core 1 has the left and right wing portions 17 at the same position in the circumferential direction A.
The left and right protrusions 5 and 6 are shifted in the circumferential direction A in mutually opposite directions.
【００１５】前記左右各突起部５、６は、周方向Ａに離
れた前後１組のガイド突起Ｆ、Ｒを有し、前後ガイド突
起Ｆ、Ｒの間はガイド突起間谷間７となっており、この
一方の突起部のガイド突起間谷間７は、他方の突起部の
前後ガイド突起Ｆ、Ｒの一方と側面視において略全幅が
オーバラップしている。即ち、図２において、左突起部
５の前ガイド突起Ｆの前端と後端とは右突起部６の前ガ
イド突起Ｆの後端と後ガイド突起Ｒの前端とそれぞれ一
致又はオーバラップしており、換言すると、左前ガイド
突起Ｆは右ガイド突起間谷間７と側面視において略全幅
がオーバラップしており、同様に右突起部６の後ガイド
突起Ｒも左突起部５のガイド突起間谷間７と側面視にお
いて略全幅がオーバラップしており、各ガイド突起Ｆ、
Ｒは各ガイド突起間谷間７以上に広い幅となっている。
これにより、１個の芯金１における４つのガイド突起
Ｆ、Ｒで形成する車輪通過面４は、切れ目のない面とな
る。Each of the left and right projections 5 and 6 has a pair of front and rear guide projections F and R separated in the circumferential direction A, and a valley 7 between the front and rear guide projections F and R is provided. The valley 7 between the guide protrusions of one of the protrusions substantially overlaps one of the front and rear guide protrusions F and R of the other protrusion in substantially side view. That is, in FIG. 2, the front end and the rear end of the front guide projection F of the left projection 5 coincide with or overlap the rear end of the front guide projection F of the right projection 6 and the front end of the rear guide projection R, respectively. In other words, the left front guide projection F substantially overlaps with the right guide projection valley 7 in a side view, and similarly, the rear guide projection R of the right projection 6 also has the guide projection valley 7 of the left projection 5. And substantially the entire width overlaps in side view, and each guide projection F,
R has a width wider than the valley 7 between the guide projections.
As a result, the wheel passing surface 4 formed by the four guide projections F and R on one cored bar 1 is a continuous surface.
【００１６】１０は前記芯金１の各突起部５、６のガイ
ド突起間谷間７に形成された弾性突起であり、この弾性
突起１０はクローラ本体３と同一材料又はそれより高硬
度の弾性材料で、クローラ本体３と一体成形されてお
り、その頂部は車輪通過面４よりも高さＨだけ高く突出
されている。この高さＨは本機重量、転動輪の数等で左
右され、面圧によって決定する。Reference numeral 10 denotes an elastic projection formed in the valley 7 between the guide projections of each of the projections 5 and 6 of the cored bar 1. The elastic projection 10 is made of the same material as the crawler body 3 or an elastic material having a higher hardness. , And is formed integrally with the crawler main body 3, and the top of the crawler main body 3 projects higher than the wheel passage surface 4 by a height H. The height H depends on the machine weight, the number of rolling wheels, and the like, and is determined by the surface pressure.
【００１７】車輪１５はガイド突起間谷間７に対向して
いるガイド突起Ｆ、Ｒに乗るとき、先ず弾性突起１０に
接してこれを圧縮変形してからガイド突起Ｆ、Ｒに当接
することになり、金属同志の衝突が緩和され、金属音が
減少する。また、ガイド突起間谷間７は芯金１の周方向
中途にあって、それに対向しているガイド突起Ｆ、Ｒに
車輪１５が乗ると、ガイド突起間谷間７のない場合に比
して、芯金１の周方向中途部の剛性が低くなり、突起部
５、６の前後端での剛性と差（変動差）が少なくなり、
振動が減少する。When the wheel 15 rides on the guide projections F, R facing the valleys 7 of the guide projections, the wheel 15 first comes into contact with the elastic projections 10, compresses them, and then contacts the guide projections F, R. The collision between the metal members is reduced, and the metal sound is reduced. Further, the guide protrusion valley 7 is located halfway in the circumferential direction of the core bar 1, and when the wheel 15 rides on the guide protrusions F and R opposed to the guide protrusion valley 7, the center is smaller than when the guide protrusion valley 7 is not provided. The rigidity of the metal 1 in the middle in the circumferential direction is reduced, and the difference (variation difference) between the rigidity at the front and rear ends of the protrusions 5 and 6 is reduced.
Vibration is reduced.
【００１８】前記弾性突起１０の前後端と前後ガイド突
起Ｆ、Ｒとの間には溝１８が形成され、弾性突起１０が
変形しても剥離を生じないようにしている。また、弾性
突起１０の外側面にはガイド突起Ｆ、Ｒの外側面より外
側方に突出した膨出部１９が形成され、弾性突起１０の
体積を大きくして、圧潰に対する耐久性を増大してい
る。A groove 18 is formed between the front and rear ends of the elastic projection 10 and the front and rear guide projections F and R so that the elastic projection 10 does not peel even if deformed. In addition, a bulging portion 19 is formed on the outer surface of the elastic protrusion 10 so as to protrude outward from the outer surfaces of the guide protrusions F and R, thereby increasing the volume of the elastic protrusion 10 and increasing the durability against crushing. I have.
【００１９】前記前後ガイド突起Ｆ、Ｒは幅（周方向長
さ）が同一になっており、クローラ周方向Ａに隣合う芯
金１間に形成される突起部間空間１１の幅と同一か又は
それより広い。そして、左右一方の突起部の突起部間空
間１１は、他方の突起部の一つのガイド突起と側面視に
おいて略全幅がオーバラップしている。即ち、図２にお
いて、左突起部５間の突起部間空間１１は右突起部６の
前ガイド突起Ｆと側面視において略全幅がオーバラップ
しており、右突起部６間の突起部間空間１１は左突起部
５の後ガイド突起Ｒと側面視において略全幅がオーバラ
ップしている。従って、周方向に隣接する芯金１におけ
るガイド突起Ｆ、Ｒで形成する車輪通過面４は、芯金１
間においても略切れ目のない面なり、クローラ全周にわ
たり切れ目のない車輪通過面４が形成されることにな
る。The front and rear guide projections F and R have the same width (length in the circumferential direction), and are the same as the width of the inter-projection space 11 formed between the cores 1 adjacent in the crawler circumferential direction A. Or wider. In addition, the space 11 between the protrusions of the one of the left and right protrusions substantially overlaps with one of the guide protrusions of the other protrusion in a side view. That is, in FIG. 2, the space 11 between the protrusions between the left protrusions 5 substantially overlaps with the front guide protrusion F of the right protrusion 6 in side view, and the space between the protrusions between the right protrusions 6. Numeral 11 substantially overlaps the rear guide projection R of the left projection 5 in a side view. Therefore, the wheel passing surface 4 formed by the guide protrusions F and R on the core metal 1 adjacent in the circumferential direction is
The surface between the crawlers is substantially continuous, and the continuous wheel passing surface 4 is formed over the entire circumference of the crawler.
【００２０】従来技術では、転動輪は突起部間空間１１
に対向したとき、その前後のガイド突起Ｆ、Ｒの端部に
荷重がかかり、芯金１を傾動させるようになるが、前述
のように、突起部間空間１１とオーバラップするガイド
突起Ｆ、Ｒが他方の突起部にあると、荷重は他方のガイ
ド突起Ｆ、Ｒによって支持され、芯金１の傾動は少なく
なり、突起部間空間１１とオーバラップするガイド突起
Ｆ、Ｒがない場合に比して剛性が高くなり、転動輪の落
ち込み差が減少し、振動が低減する。但し、前記第１実
施例においては、ガイド突起Ｆ、Ｒが先細りであるた
め、車輪１５が落ち込まない程度に僅かな区切り目が形
成されている。In the prior art, the rolling wheel is formed in the space 11 between the projections.
When a load is applied to the front and rear ends of the guide projections F and R, the core bar 1 is tilted. However, as described above, the guide projections F and R overlap with the inter-projection space 11. When R is on the other protrusion, the load is supported by the other guide protrusions F and R, the tilt of the core bar 1 is reduced, and there is no guide protrusion F or R overlapping the space 11 between protrusions. Rigidity is increased as compared with the above, and the drop difference of the rolling wheel is reduced, and vibration is reduced. However, in the first embodiment, since the guide projections F and R are tapered, a slight break is formed so that the wheel 15 does not fall.
【００２１】前記第１実施例の弾性クローラ２において
は、左右一方の突起部間空間１１とオーバラップするガ
イド突起Ｆ、Ｒを左右他方に設けることにより、従来芯
金間で低かった剛性を高め、左右一方のガイド突起Ｆ、
Ｒとオーバラップするガイド突起間谷間７を左右他方に
設けることにより、従来芯金内で高かった剛性を低めて
いるので、弾性クローラ２全体で見ると剛性差が縮小
し、振動が減少することになる。In the elastic crawler 2 of the first embodiment, by providing guide projections F and R on the left and right sides which overlap the space 11 between the left and right projections, the rigidity which was low between the conventional metal cores is increased. , One of the left and right guide projections F,
By providing the valleys 7 between the guide protrusions that overlap with R, the rigidity which was high in the conventional metal core is reduced, so that the rigidity difference is reduced and the vibration is reduced when viewed as a whole with the elastic crawler 2. become.
【００２２】図９〜１１に示す第２実施例において、こ
の第２実施例の芯金１は前後ガイド突起Ｆ、Ｒの幅が異
なっており、ガイド突起間谷間７と対向しているガイド
突起が対向していないガイド突起より広くなっていて、
より完全にガイド突起間谷間７とオーバラップするよう
になっている。即ち、図１１において、左前ガイド突起
Ｆが左後ガイド突起Ｒに対して、右後ガイド突起Ｒが右
前ガイド突起Ｆに対してそれぞれ幅狭（側面視）になっ
ている。尚、突起部間空間１１は狭くなっているが、弾
性クローラ２を駆動輪等に巻き付いたときに、周方向の
突起部５、６同志が接触しない隙間が確保されている。In the second embodiment shown in FIGS. 9 to 11, the core bar 1 of the second embodiment differs in the width of the front and rear guide projections F and R, and is opposed to the valley 7 between the guide projections. Are wider than the guide projections that are not facing each other,
The guide projections and the valleys 7 more completely overlap. That is, in FIG. 11, the left front guide projection F is narrower (in side view) than the right rear guide projection R with respect to the left rear guide projection R. Although the inter-projection space 11 is narrow, a gap is ensured so that the projections 5 and 6 in the circumferential direction do not contact each other when the elastic crawler 2 is wound around a driving wheel or the like.
【００２３】図１２、１３に示す第３実施例において、
この第３実施例の芯金１も前後ガイド突起Ｆ、Ｒの幅が
異なっており、突起部間空間１１と対向しているガイド
突起が対向していないガイド突起より広くなっていて、
より完全に突起部間空間１１とオーバラップするように
なっている。即ち、図１２において、右前ガイド突起Ｆ
が右後ガイド突起Ｒに対して、左後ガイド突起Ｒが左前
ガイド突起Ｆに対してそれぞれ広幅になっており、右前
ガイド突起Ｆ及び左後ガイド突起Ｒは、第１実施例のも
のに比して、翼部１７から前後方向により大きく突出し
ている。In the third embodiment shown in FIGS.
The width of the front and rear guide projections F and R also differs in the core bar 1 of the third embodiment, and the guide projections facing the inter-projection space 11 are wider than the guide projections that do not face each other.
It more completely overlaps with the inter-projection space 11. That is, in FIG.
Is wider than the right rear guide projection R, and the left rear guide projection R is wider than the left front guide projection F. The right front guide projection F and the left rear guide projection R are different from those of the first embodiment. Thus, it protrudes from the wing portion 17 in the front-rear direction more largely.
【００２４】図１４に示す第４実施例において、この第
４実施例の芯金１は前後ガイド突起Ｆ、Ｒの幅が同一又
は異なっており、左突起部５の前ガイド突起Ｆの前端と
後端とは右突起部６の前ガイド突起Ｆの後端と後ガイド
突起Ｒの前端とそれぞれ一致しており、換言すると、左
前ガイド突起Ｆは右ガイド突起間谷間７と側面視におい
て略完全に重合しており、同様に右突起部６の後ガイド
突起Ｒも左突起部５のガイド突起間谷間７と側面視にお
いて略完全に重合している。これにより、１個の芯金１
における４つのガイド突起Ｆ、Ｒで形成する車輪通過面
４は、ガイド突起Ｆ、Ｒ同志がオーバラップせず、且つ
切れ目のない面となる。In the fourth embodiment shown in FIG. 14, the core bar 1 of the fourth embodiment has the same or different widths of the front and rear guide projections F and R, and is different from the front end of the front guide projection F of the left projection 5. The rear end coincides with the rear end of the front guide projection F of the right projection 6 and the front end of the rear guide projection R, in other words, the left front guide projection F is almost completely in the valley 7 of the right guide projection in side view. Similarly, the rear guide projection R of the right projection 6 almost completely overlaps with the guide projection valley 7 of the left projection 5 in a side view. Thereby, one core metal 1
In the wheel passing surface 4 formed by the four guide projections F and R, the guide projections F and R do not overlap with each other and are continuous surfaces.
【００２５】（試験例）図１５〜１７に示したグラフ
は、一方の突起部のガイド突起間谷間７と他方の突起部
の前後ガイド突起Ｆ、Ｒの一方との側面視におけるオー
バラップ量の違い、及びガイド突起間谷間７のない場合
による、振動発生の比較試験の結果を示している。(Test Example) The graphs shown in FIGS. 15 to 17 show the amount of overlap in side view between the guide protrusion valley 7 of one protrusion and one of the front and rear guide protrusions F and R of the other protrusion. The result of the comparative test of the generation of vibration is shown depending on the difference and the case without the guide projection valley 7.
【００２６】グラフ中の実線Ｅは前記第１実施例に示し
た本件の弾性クローラ２のものであり、点線Ｆは図１８
に示す比較クローラのものであり、１点鎖線Ｇは各突起
部にガイド突起間谷間７がなく、１つの突起部が１つの
車輪通過面４しか形成しない従来技術に相当する従来ク
ローラのものである。前記比較クローラは側面視におけ
るオーバラップ量が約半分になっており、一方の突起部
のガイド突起間谷間７の略中央に他方の突起部の前後ガ
イド突起Ｆ、Ｒの一方の前端又は後端が位置し、車輪が
左右の弾性突起１０に同時に乗ることがある。この比較
クローラＦの弾性突起１０はガイド突起Ｆ、Ｒと同一高
さになっている。The solid line E in the graph is for the elastic crawler 2 of the present invention shown in the first embodiment, and the dotted line F is for FIG.
The one-dot chain line G is that of the conventional crawler corresponding to the prior art in which each projection has no guide projection valley 7 and one projection forms only one wheel passage surface 4. is there. In the comparative crawler, the overlap amount in a side view is about half, and the front or rear end of one of the front and rear guide projections F and R of the other projection is substantially at the center of the valley 7 between the guide projections of one projection. And the wheels may ride on the left and right elastic projections 10 at the same time. The elastic protrusions 10 of the comparative crawler F are at the same height as the guide protrusions F and R.
【００２７】（試験条件） クローラサイズ ２３ー９６Ｘ３３ Ｋー６６２ 試験車 ハニックス Ｈー１５型ミニバッ
クホー 車体重量 １５００Ｋｇ 振動測定位置 運転座席上 車体速度 １．０〜２．５Ｋｍ／Ｈ(Test conditions) Crawler size 23-96X33 K-662 Test vehicle Hanix H-15 mini backhoe Body weight 1500Kg Vibration measurement position On driver's seat Body speed 1.0-2.5Km / H
【００２８】（試験結果）図１５は前後振動試験を表
し、車速が速くなるにつれて、従来クローラＧは９２ｄ
ｂから１００ｄｂに漸次上昇するのに対し、本クローラ
Ｅ及び比較クローラＦは、途中まで下降した後に上昇
し、その振動レベルも９３ｄｂ程度で抑えられ、しか
も、本クローラＥは比較クローラＦより２〜３パーセン
ト低くなっている。(Test Results) FIG. 15 shows a front-back vibration test.
b, while the crawler E and the comparative crawler F rise after being lowered halfway, the vibration level is also suppressed to about 93 db, and the crawler E is 2 to 2 db higher than the comparative crawler F. 3 percent lower.
【００２９】図１６は左右振動試験を表し、従来クロー
ラＧは車速が１．５Ｋｍ／Ｈ以上になると約９３ｄｂか
ら１００ｄｂへ急激に上昇するのに対し、本クローラＥ
及び比較クローラＦは、車速が２．０Ｋｍ／Ｈまで下降
した後に僅かに上昇するだけで、その振動レベルも９３
ｄｂ以下に抑えられ、本クローラＥでは９０ｄｂ程度に
なる。FIG. 16 shows a lateral vibration test. The conventional crawler G rapidly increases from about 93 db to 100 db when the vehicle speed exceeds 1.5 Km / H.
And the comparative crawler F increases only slightly after the vehicle speed drops to 2.0 Km / H, and its vibration level is 93
db or less, and is about 90 db in this crawler E.
【００３０】図１７は上下振動試験を表し、従来クロー
ラＧは上下に変動するが振動レベル１００ｄｂ以下に下
がることはなく、それに対し本クローラＥ及び比較クロ
ーラＦは、車速が速くなるにしたがって上昇するが、最
大振動レベルが１００ｄｂ程度で抑えられ、しかも、本
クローラＥでは比較クローラＦよりも更に２〜４パーセ
ント低くなっている。FIG. 17 shows a vertical vibration test, in which the conventional crawler G fluctuates up and down but does not fall below the vibration level of 100 db, whereas the crawler E and the comparative crawler F rise as the vehicle speed increases. However, the maximum vibration level is suppressed to about 100 db, and the crawler E is 2 to 4% lower than the comparative crawler F.
【００３１】このように、左右ガイド突起Ｆ、Ｒで形成
される車輪通過面４を連続にし、且つガイド突起間谷間
７の弾性突起１０を車輪通過面４より突出すると、前後
及び左右の振動は常に充分減少でき、上下振動も低速走
行の内は低く抑えることができるのが明らかになる。As described above, when the wheel passage surface 4 formed by the left and right guide projections F and R is made continuous and the elastic projections 10 in the valleys 7 between the guide projections protrude from the wheel passage surface 4, the front-back and left-right vibrations are reduced. It is clear that the vibration can always be reduced sufficiently and the vertical vibration can be suppressed during running at low speed.
【００３２】[0032]
【発明の効果】以上詳述した本発明によれば、クローラ
用芯金１は、各突起部５、６がクローラ周方向Ａに離れ
た前後１組のガイド突起Ｆ、Ｒを有し、一方の突起部の
ガイド突起間谷間７が他方の突起部の前後ガイド突起
Ｆ、Ｒの一方と側面視において略全幅がオーバラップし
ているので、１個の芯金１で形成できる車輪通過面４を
長くでき、車輪通過面４の長さが同じであれば芯金１重
量を軽減できる。According to the present invention described in detail above, the crawler core 1 has a pair of front and rear guide protrusions F and R in which the protrusions 5 and 6 are separated in the crawler circumferential direction A. Since the valley 7 between the guide projections of the projections overlaps with one of the front and rear guide projections F and R of the other projections in substantially the entire width in a side view, the wheel passage surface 4 that can be formed by one cored bar 1 And if the length of the wheel passage surface 4 is the same, the weight of the core metal can be reduced by one.
【００３３】また、弾性クローラ２は、各芯金１の左右
突起部５、６がクローラ周方向Ａに離れた前後１組のガ
イド突起Ｆ、Ｒを有し、一方の突起部のガイド突起間谷
間７が他方の突起部の前後ガイド突起Ｆ、Ｒの一方と側
面視において略全幅がオーバラップしており、このガイ
ド突起間谷間７にクローラ本体３と一体の弾性突起１０
を設け、この弾性突起１０の頂部を車輪通過面４よりも
高く突出させているので、車輪１５が突起部５、６上に
ある場合でも弾性突起１０に乗り上げるため、車輪１５
の落ち込みが少なくなって振動を減少でき、金属同志の
衝突が緩和されて金属音が減少でき、且つ従来技術のよ
うに突起部間空間１１に弾性突起を設けないので、クロ
ーラの円滑な変形を保障できる。The elastic crawler 2 has a pair of front and rear guide projections F and R in which the left and right protrusions 5 and 6 of each cored bar 1 are separated in the crawler circumferential direction A. The valley 7 substantially overlaps with one of the front and rear guide projections F and R of the other projection in the side view, and the ridge 7 has an elastic projection 10 integrated with the crawler body 3.
Is provided so that the top of the elastic projection 10 protrudes higher than the wheel passage surface 4, so that the wheel 15 rides on the elastic projection 10 even when the wheel 15 is on the projections 5 and 6.
Of the crawler can be reduced by reducing the vibration of the crawler, the metal noise can be reduced by easing the collision of the metal, and the elastic space is not provided in the space 11 between the protrusions as in the prior art. We can guarantee.
【００３４】更に、弾性クローラ２は、周方向Ａに隣合
う芯金１間に形成される左右一方の突起部の突起部間空
間１１が、他方の突起部の一つのガイド突起と側面視に
おいて略全幅がオーバラップしているので、車輪１５の
落ち込みを更に少なくでき、しかも左右突起部５、６で
クローラ全周にわたって切れ目のない車輪通過面４を形
成でき、これらにより振動をより減少できる。しかも、
クローラ周方向Ａにおける突起部間と各突起部の中途部
との剛性差が縮小でき、弾性クローラ２の全長にわたる
剛性変動が減少し、振動を確実に低減できる。Further, in the elastic crawler 2, the inter-projection space 11 of one of the left and right projections formed between the cores 1 adjacent in the circumferential direction A is different from one guide projection of the other projection in a side view. Since the substantially entire widths are overlapped, the drop of the wheel 15 can be further reduced, and the uninterrupted wheel passing surface 4 can be formed by the left and right protrusions 5 and 6 over the entire circumference of the crawler, thereby further reducing the vibration. Moreover,
The difference in rigidity between the projections in the crawler circumferential direction A and the middle of each projection can be reduced, the variation in rigidity over the entire length of the elastic crawler 2 can be reduced, and vibration can be reliably reduced.
【図１】本発明の第１実施例を示す弾性クローラの斜視
図である。FIG. 1 is a perspective view of an elastic crawler showing a first embodiment of the present invention.
【図２】同平面図である。FIG. 2 is a plan view of the same.
【図３】同芯金の斜視図である。FIG. 3 is a perspective view of a concentric metal bar.
【図４】図２のＷーＷ線断面図である。FIG. 4 is a sectional view taken along line WW of FIG. 2;
【図５】図２のＸーＸ線断面図である。FIG. 5 is a sectional view taken along line XX of FIG. 2;
【図６】図２のＹーＹ線断面図である。FIG. 6 is a sectional view taken along line YY of FIG. 2;
【図７】図２のＺ矢視図である。FIG. 7 is a view as viewed in the direction of the arrow Z in FIG. 2;
【図８】同底面図である。FIG. 8 is a bottom view of the same.
【図９】本発明の第２実施例を示す弾性クローラの斜視
図である。FIG. 9 is a perspective view of an elastic crawler showing a second embodiment of the present invention.
【図１０】同平面図である。FIG. 10 is a plan view of the same.
【図１１】同芯金の斜視図である。FIG. 11 is a perspective view of a concentric metal bar.
【図１２】本発明の第３実施例を示す弾性クローラの平
面図である。FIG. 12 is a plan view of an elastic crawler showing a third embodiment of the present invention.
【図１３】同芯金の斜視図である。FIG. 13 is a perspective view of a concentric metal bar.
【図１４】本発明の第４実施例を示す弾性クローラの平
面図である。FIG. 14 is a plan view of an elastic crawler showing a fourth embodiment of the present invention.
【図１５】本クローラと比較クローラとの前後振動試験
結果を示すグラフである。FIG. 15 is a graph showing the results of a longitudinal vibration test of the present crawler and a comparative crawler.
【図１６】同左右振動試験結果を示すグラフである。FIG. 16 is a graph showing the results of the left-right vibration test.
【図１７】同上下振動試験結果を示すグラフである。FIG. 17 is a graph showing the results of the vertical vibration test.
【図１８】同振動試験に使用された比較クローラの平面
説明図である。FIG. 18 is an explanatory plan view of a comparative crawler used in the vibration test.
１ 芯金 ２ 弾性クローラ ３ クローラ本体 ４ 車輪通過面 ５ 突起部 ６ 突起部 ７ ガイド突起間谷間 ８ 係合孔 １０ 弾性突起 １１ 突起部間空間 １５ 車輪 DESCRIPTION OF SYMBOLS 1 Core metal 2 Elastic crawler 3 Crawler main body 4 Wheel passage surface 5 Projection 6 Projection 7 Guide projection valley 8 Engagement hole 10 Elastic projection 11 Space between projections 15 Wheel
Claims (3)
（Ａ）等間隔に埋設されていて、その頂部が車輪通過面
（４）となるべくクローラ内周側に突出した左右１組の
突起部（５）（６）を有し、この左右突起部（５）
（６）がクローラ周方向（Ａ）にずれているクローラ用
芯金において、 前記各突起部（５）（６）はクローラ周方向（Ａ）に離
れた前後１組のガイド突起（Ｆ）（Ｒ）を有し、一方の
突起部のガイド突起間谷間（７）は他方の突起部の前後
ガイド突起（Ｆ）（Ｒ）の一方と側面視において略全幅
がオーバラップしていることを特徴とするクローラ用芯
金。1. A pair of left and right projections which are embedded in a crawler body (3) at equal intervals in a crawler circumferential direction (A) and whose tops protrude toward a crawler inner circumferential side to become a wheel passing surface (4). (5) The left and right protrusions (5)
In the crawler core metal in which (6) is displaced in the crawler circumferential direction (A), each of the protrusions (5) and (6) is a set of front and rear guide protrusions (F) (F) ( R), and the valleys (7) of the guide projections of one of the projections substantially overlap the one of the front and rear guide projections (F) and (R) of the other projection substantially in the side view. Crawler core metal.
ーラ周方向（Ａ）等間隔に芯金（１）を埋設し、各芯金
（１）間に駆動スプロケット係合用の係合孔（８）を形
成し、前記各芯金（１）にクローラ内周側に突出する左
右１組の突起部（５）（６）を形成し、この左右突起部
（５）（６）をクローラ周方向（Ａ）にずらすと共にそ
の頂部を車輪通過面（４）とした弾性クローラにおい
て、 前記各芯金（１）の左右突起部（５）（６）はクローラ
周方向（Ａ）に離れた前後１組のガイド突起（Ｆ）
（Ｒ）を有し、一方の突起部のガイド突起間谷間（７）
は他方の突起部の前後ガイド突起（Ｆ）（Ｒ）の一方と
側面視において略全幅がオーバラップしており、このガ
イド突起間谷間（７）にクローラ本体（３）と一体の弾
性突起（１０）を設け、この弾性突起（１０）の頂部を
車輪通過面（４）よりも高く突出させていることを特徴
とする弾性クローラ。2. A core metal (1) is buried at equal intervals in a crawler circumferential direction (A) in a crawler body (3) made of an elastic material, and an engagement hole (5) for engaging a driving sprocket is provided between each core metal (1). 8), and a pair of left and right protrusions (5) and (6) protruding toward the inner peripheral side of the crawler is formed on each core metal (1). In the elastic crawler which is shifted in the direction (A) and whose top is a wheel passing surface (4), the left and right protrusions (5) and (6) of each cored bar (1) are separated from each other in the crawler circumferential direction (A). One set of guide projections (F)
(R), and a valley between the guide protrusions of one of the protrusions (7)
In the side view, one of the front and rear guide projections (F) and (R) of the other projection overlaps substantially the entire width, and an elastic projection (7) integrated with the crawler body (3) is formed in the guide projection valley (7). 10) An elastic crawler characterized in that a top of the elastic projection (10) protrudes higher than the wheel passage surface (4).
（１）間に形成される左右一方の突起部の突起部間空間
（１１）は、他方の突起部の一つのガイド突起と側面視
において略全幅がオーバラップしていることを特徴とす
る請求項２に記載の弾性クローラ。3. An inter-projection space (11) of one of the left and right projections formed between the core bars (1) adjacent to each other in the crawler circumferential direction (A) is one guide projection and the side face of the other projection. The elastic crawler according to claim 2, wherein substantially the entire width overlaps when viewed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19211891A JP2871192B2 (en) | 1991-07-31 | 1991-07-31 | Crawler core metal and elastic crawler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19211891A JP2871192B2 (en) | 1991-07-31 | 1991-07-31 | Crawler core metal and elastic crawler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0532183A JPH0532183A (en) | 1993-02-09 |
| JP2871192B2 true JP2871192B2 (en) | 1999-03-17 |
Family
ID=16285972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19211891A Expired - Lifetime JP2871192B2 (en) | 1991-07-31 | 1991-07-31 | Crawler core metal and elastic crawler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2871192B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0673831B1 (en) * | 1994-03-25 | 1996-06-19 | Mai S.P.A. | A rubber track for vehicles |
| JP4272580B2 (en) * | 2003-12-04 | 2009-06-03 | ゼニス産業株式会社 | Elastic crawler |
-
1991
- 1991-07-31 JP JP19211891A patent/JP2871192B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0532183A (en) | 1993-02-09 |
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