JP2008260344A - Crawler type traveling device - Google Patents

Crawler type traveling device Download PDF

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JP2008260344A
JP2008260344A JP2007102946A JP2007102946A JP2008260344A JP 2008260344 A JP2008260344 A JP 2008260344A JP 2007102946 A JP2007102946 A JP 2007102946A JP 2007102946 A JP2007102946 A JP 2007102946A JP 2008260344 A JP2008260344 A JP 2008260344A
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crawler belt
prevention guide
guide
crawler
traveling device
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JP5243727B2 (en
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Yoshiro Ueno
吉郎 上野
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Sumitomo Rubber Industries Ltd
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Sumitomo Rubber Industries Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a crawler type traveling device capable of absorbing interference with a projected article when the crawler type traveling device rides-on the projected article and a pushed-up force is applied from a lower side to a derailing prevention guide by the projected article. <P>SOLUTION: When a ground-contact portion of a crawler 6 is pushed up from a lower side, the derailing prevention guide 9 is movably supported on a truck frame 2 such that the derailing prevention guide 9 is moved in an escaping direction by the pushing up force. An elastic means 16 for retaining the derailing prevention guide 9 to the usual state is provided between the derailing prevention guide 9 and the truck frame 2 such that the derailing prevention guide 9 is moved by the pushing up force in resistant to the elastic force. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、履帯の脱輪（履帯の外れ）を防止する脱輪防止ガイドを備えたクローラ式走行装置に関するものである。   The present invention relates to a crawler type traveling device provided with a derailment prevention guide for preventing a derailment of a crawler belt (detachment of a crawler belt).

従来、トラックフレームに支持された駆動輪、アイドラ及び転輪に巻き掛けられた無端帯状の履帯を備え、駆動輪を回転駆動させることにより、該駆動輪から履帯に回転動力を伝達して、該履帯を周方向に循環回走させるようにしたクローラ式走行装置がある。
このクローラ式走行装置の履帯の内周面側の履帯幅方向中央側には、履帯周方向に間隔をおいて且つ履帯周方向全周にわたるように脱輪防止突起が設けられ、この脱輪防止突起が駆動輪、アイドラ、転輪等に係合することにより履帯の脱輪（履帯の外れ）が防止されるように構成されている。 Conventionally, a driving wheel supported by a track frame, an idler, and an endless belt-like crawler belt wound around a wheel, and by rotating the driving wheel, rotational power is transmitted from the driving wheel to the crawler belt, There is a crawler type traveling device that allows a crawler belt to circulate in the circumferential direction.
On the inner side of the crawler belt of the crawler type traveling device, a crawler belt width direction central side is provided with a crawler belt circumferential direction spaced apart in the crawler belt circumferential direction and over the crawler belt circumferential direction. The projection is engaged with a drive wheel, idler, wheel, etc., so that the crawler belt is prevented from being removed (crawler belt detachment).

また、履帯の脱輪防止の確実性を向上させるために、転輪等の他に、履帯が接地するがわ（履帯の下部がわ）であって且つ履帯の内周側において前記脱輪防止突起に係合することにより履帯の脱輪を防止する脱輪防止ガイドを備えたクローラ式走行装置がある（特許文献１参照）。
特開２００６−５１８９９号公報 Further, in order to improve the certainty of preventing the crawler belt from being removed, in addition to the wheels, the crawler belt is grounded (a lower portion of the crawler belt), and the above-mentioned derailment prevention is performed on the inner peripheral side of the crawler belt. There is a crawler type traveling device provided with a derailment prevention guide that prevents the derailment of a crawler belt by engaging with a protrusion (see Patent Document 1).
JP 2006-51899 A

前記従来のクローラ式走行装置にあっては、脱輪防止ガイドがトラックフレームに固定されているので、クローラ式走行装置が突起物に乗り上げた際において、脱輪防止ガイドが突起物上にきたときにクローラ式走行装置と共に機体の前部側が大きく上がり、該クローラ式走行を採用した走行体の重心部が突起物を乗り越えるとシーソーのように急激にクローラ式走行装置の前部側が下降することとなり、安定性に問題がある。
また、階段を昇るときにあっても、階段の角を常に脱輪防止ガイドが押す格好となり、階段の角を支点に機体前部が前上がりになり始め、クローラ式走行装置が進行方向前方側の（上側の段の）階段角にかからなくなり、バランスが不安定になるという問題もある。 In the conventional crawler type traveling device, the anti-derailing guide is fixed to the track frame, so that when the crawler type traveling device rides on the projection, the anti-derailing guide comes on the projection. In addition, the front side of the airframe rises greatly together with the crawler type traveling device, and when the center of gravity of the traveling body that uses the crawler type traveling over the projection, the front side of the crawler type traveling device suddenly descends like a seesaw. There is a problem with stability.
In addition, even when climbing the stairs, the anti-derailing guide always pushes the corner of the stairs, the front part of the aircraft starts to rise forward with the corner of the stairs as a fulcrum, and the crawler type traveling device moves forward in the direction of travel There is also a problem that the balance is unstable because it does not reach the step angle (upper stage).

また、脱輪防止ガイドがトラックフレームに固定されていると、高速走行時等において凹凸路面を走行した場合に、下方側からの突上げ力が脱輪防止ガイドに加わると、当該クローラ式走行装置を採用した走行体に衝撃が作用するという問題がある。
そこで、本発明は、前記問題を解消することができるクローラ式走行装置を提供することを目的とする。 In addition, when the derailment prevention guide is fixed to the track frame, when a thrust force from below is applied to the derailment prevention guide when traveling on an uneven road surface during high speed traveling, etc., the crawler traveling device There is a problem that an impact acts on a traveling body that employs.
Then, an object of this invention is to provide the crawler type traveling apparatus which can eliminate the said problem.

前記技術的課題を解決するために本発明が講じた技術的手段は、トラックフレームに支持された駆動輪、アイドラ及び転輪に巻き掛けられた無端帯状の履帯を備え、この履帯の内周側に、周方向に間隔をおいて設けられていて少なくとも転輪に係合することにより履帯の脱輪を防止する脱輪防止突起を設け、前記履帯が接地する側であって且つ履帯の内周側において、前記脱輪防止突起に係合することで履帯の脱輪を防止する脱輪防止ガイドを備えたクローラ式走行装置において、
履帯の接地部分が下側から突上げられた際に、該突上げ力によって脱輪防止ガイドが逃げる方向に動くように、該脱輪防止ガイドをトラックフレームに可動可能に支持すると共に、前記突上げ力によって脱輪防止ガイドが弾性力に抗して動くように、該脱輪防止ガイドを通常の状態に保持する弾性手段を脱輪防止ガイドとトラックフレームとの間に設けたことを特徴とする。 The technical means taken by the present invention in order to solve the technical problem includes a driving wheel supported by a track frame, an idler, and an endless belt-like crawler belt wound around a roller wheel, and the inner circumference side of the crawler belt Provided with a slip-off preventing projection provided at least in the circumferential direction to prevent the crawler belt from being disengaged by engaging with the wheel, and the crawler belt is on the side where it contacts the ground and the inner circumference of the crawler belt On the side, in the crawler type traveling device provided with the anti-derailing guide for preventing the derailment of the crawler belt by engaging the anti-derailing protrusion,
The derailment prevention guide is movably supported on the track frame so that the derailment prevention guide moves in a direction to escape by the thrust when the ground contact portion of the crawler is thrust from below. An elastic means for holding the anti-derailing guide in a normal state is provided between the anti-derailing guide and the track frame so that the anti-derailing guide moves against the elastic force by the lifting force. To do.

また、他の技術的手段は、トラックフレームに支持された駆動輪、アイドラ及び転輪に巻き掛けられた無端帯状の履帯を備え、この履帯の内周側に、周方向に間隔をおいて設けられていて少なくとも転輪に係合することにより履帯の脱輪を防止する脱輪防止突起を設け、前記履帯が接地するがわであって且つ履帯の内周側において、前記脱輪防止突起に係合することで履帯の脱輪を防止する脱輪防止ガイドを備えたクローラ式走行装置において、
履帯の接地部分が下側から突上げられた際に、該突上げ力によって脱輪防止ガイドが逃げる方向に動くように、該脱輪防止ガイドを、トラックフレームに、左右方向の軸心を有する枢支軸に軸心回りに揺動自在に枢支すると共に全体的に上下動するように支持したことを特徴とする。 Further, another technical means includes a drive wheel supported by a track frame, an idler, and an endless belt-like crawler belt wound around a roller wheel, and is provided on the inner peripheral side of the crawler belt at a circumferential interval. Provided at least on the inner side of the crawler belt, and provided on the inner peripheral side of the crawler belt. In the crawler type traveling device provided with the anti-derailing guide for preventing the derailment of the crawler belt by engaging,
When the ground contact portion of the crawler belt is pushed up from the lower side, the derailment prevention guide has a left and right axial center on the track frame so that the derailment prevention guide moves in the direction of escaping by the thrust force. It is characterized in that it is pivotally supported on a pivot shaft so as to be swingable around its axis and is supported so as to move up and down as a whole.

また、前記他の技術的手段において、突上げ力によって脱輪防止ガイドが弾性力に抗して動くように、該脱輪防止ガイドを通常の状態に保持する弾性手段を脱輪防止ガイドとトラックフレームとの間に設けるのがよい。   Further, in the other technical means, the elastic means for holding the derailment prevention guide in a normal state is provided with the derailment prevention guide and the track so that the derailment prevention guide moves against the elastic force by the thrust force. It is good to provide between frames.

本発明によれば、例えば、クローラ式走行装置が突起物に乗り上げて、履帯の接地部分が該突起物によって下側から突き上げられた場合に、脱輪防止ガイドが逃げる方向に動いて、突起物との干渉を吸収するので、該クローラ式走行装置を採用した走行体の機体の安定化を図ることができると共に、高速走行時等において凹凸路面を走行した際に、下方側からの突上げ力が脱輪防止ガイドに加わった場合において、当該クローラ式走行装置を採用した走行体に作用する衝撃を吸収することができる。   According to the present invention, for example, when the crawler type traveling device rides on a protrusion and the ground contact portion of the crawler belt is pushed up from the lower side by the protrusion, the anti-wheel-removal guide moves in the direction of escaping, and the protrusion As a result, it is possible to stabilize the airframe of the traveling body adopting the crawler type traveling device and to push up from the lower side when traveling on the uneven road surface at high speed traveling etc. Is added to the anti-derailing guide, it is possible to absorb the impact acting on the traveling body employing the crawler traveling device.

以下、本発明の実施の形態を図面を参照して説明する。
図１及び図２は第１実施形態を示し、図３（ａ）は第２実施形態を示し、図４は第３実施形態を示し、図３（ｂ）は第４実施形態を示している。
図１において、１は防災支援用車輌、コンバイン等の農業機械、土木・建設機械、運搬車等の走行体の走行部として採用されるクローラ式走行装置であり、このクローラ式走行装置１は、本実施の形態のものにあっては、トラックフレーム２と、進行方向（図１の左右方向）前後一側に配置された駆動輪３（スプロケット）と、進行方向前後他側に配置されたアイドラ４と、これら駆動輪３とアイドラ４との間に配置された１又は複数の転輪５と、これら駆動輪３，アイドラ４及び転輪５にわたって巻き掛けられたエンドレス状の弾性履帯６とから主構成されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 and 2 show the first embodiment, FIG. 3 (a) shows the second embodiment, FIG. 4 shows the third embodiment, and FIG. 3 (b) shows the fourth embodiment. .
In FIG. 1, reference numeral 1 denotes a crawler type traveling device employed as a traveling unit of a traveling body such as a vehicle for disaster prevention support, an agricultural machine such as a combine, a civil engineering / construction machine, a transport vehicle, etc. In the present embodiment, the track frame 2, the driving wheel 3 (sprocket) disposed on the front and rear side in the traveling direction (left and right direction in FIG. 1), and the idler disposed on the other side in the traveling direction. 4, one or a plurality of rolling wheels 5 disposed between the driving wheel 3 and the idler 4, and an endless elastic crawler belt 6 wound around the driving wheel 3, the idler 4 and the rolling wheel 5. The main composition is.

駆動輪３，アイドラ４及び転輪５はトラックフレーム２に左右方向（図１の紙面貫通方向）の軸心回りに回転自在に支持されており、クローラ式走行装置１が装着された走行体の本機側の駆動源からの動力によって駆動輪３を回転駆動させることにより、駆動輪３から弾性履帯６に動力が伝達されて該弾性履帯６が周方向Ｘに循環回走され、これによりクローラ式走行装置１が前後進するよう構成されている。
なお、図例の構造のクローラ式走行装置１は一例を示したものであり、構造は種種変更される。 The driving wheel 3, the idler 4 and the rolling wheel 5 are supported by the track frame 2 so as to be rotatable around the axis in the left-right direction (the through direction in the drawing in FIG. 1), and the traveling body on which the crawler traveling device 1 is mounted. By rotating and driving the driving wheel 3 with power from the drive source on the machine side, power is transmitted from the driving wheel 3 to the elastic crawler belt 6 and the elastic crawler belt 6 circulates in the circumferential direction X. The traveling device 1 is configured to move forward and backward.
In addition, the crawler type traveling device 1 having the structure shown in the figure is an example, and the structure is changed in various ways.

前記弾性履帯６は、本体部分がゴム様弾性材（ゴム、樹脂等）によって無端帯状に形成され、外周側には弾性材からなるラグ（図示省略）が履帯周方向に間隔をおいて設けられる。
また、弾性履帯６の内周側には、本体部分の履帯幅方向（左右方向）中央側に位置する左右一対の脱輪防止突起８が、履帯周方向Ｘに間隔をおいて履帯周方向Ｘ全周にわたるように設けられている。
この脱輪防止突起８に、転輪５，アイドラ４，駆動輪３が係合する（少なくとも転輪５が係合する）ことにより弾性履帯６の脱輪（弾性履帯６の外れ）が防止される。 The elastic crawler belt 6 has a main body portion formed in an endless belt shape by a rubber-like elastic material (rubber, resin, etc.), and a lug (not shown) made of an elastic material is provided on the outer peripheral side at intervals in the crawler belt circumferential direction. .
Further, on the inner peripheral side of the elastic crawler belt 6, a pair of left and right derailment prevention protrusions 8 positioned on the center side of the crawler belt width direction (left-right direction) of the main body portion are arranged in the crawler belt circumferential direction X with an interval therebetween. It is provided to cover the entire circumference.
The wheels 5, the idler 4, and the drive wheels 3 engage with the derailing prevention protrusions 8 (at least the wheels 5 engage), thereby preventing the elastic crawler belt 6 from coming off (disengagement of the elastic crawler belt 6). The

また、前記クローラ式走行装置１には、駆動輪３，アイドラ４，転輪５の他に、脱輪防止突起８に係合することにより弾性履帯６の脱輪を防止する脱輪防止ガイド９が設けられている。
この脱輪防止ガイド９は、弾性履帯６が接地するがわ（履帯６の下部側）であって且つ履帯６の内周側において脱輪防止突起８に係合するようにトラックフレーム２に支持されている。
本実施の形態では、脱輪防止ガイド９は、履帯周方向Ｘに沿って配置されると共に左右の脱輪防止突起８間に位置して脱輪防止突起８に左右方向に関して係合することにより弾性履帯６の脱輪を防止するガイド部１０と、このガイド部１０の前後方向（履帯周方向Ｘ）中央側に上方突出状に一体形成された支持部１１とから主構成されている。 Further, the crawler type traveling device 1 includes a drive wheel 3, an idler 4, and a wheel 5, and a derailing prevention guide 9 that prevents the elastic crawler belt 6 from derailing by engaging with a derailing prevention protrusion 8. Is provided.
The derailment prevention guide 9 is supported by the track frame 2 so that the elastic crawler belt 6 is grounded (the lower side of the crawler belt 6) and engages with the derailment prevention protrusion 8 on the inner peripheral side of the crawler belt 6. Has been.
In this embodiment, the derailment prevention guide 9 is disposed along the crawler belt circumferential direction X and is positioned between the left and right derailment prevention protrusions 8 to engage with the derailment prevention protrusion 8 in the lateral direction. The main part is composed of a guide part 10 for preventing the elastic crawler belt 6 from being removed, and a support part 11 integrally formed in the front-rear direction (crawler belt circumferential direction X) center side of the guide part 10 so as to project upward.

この脱輪防止ガイド９は、その支持部１１が左右方向の軸心を有する枢支軸１２を介してトラックフレーム２に左右方向の軸心廻りに回動自在に支持されることにより、トラックフレーム２に揺動自在に支持されている。
脱輪防止ガイド９の枢支部分は、例えば、図２（ａ）に示すような構造とされる。
図２（ａ）において、脱輪防止ガイド９はトラックフレーム２の側方に左右方向の間隔を空けて配置され、枢支軸１２は、脱輪防止ガイド９の支持部１１とトラックフレーム２とを左右方向に貫通しており、枢支軸１２の軸心方向（左右方向）一端側はトラックフレーム２に固定され、枢支軸１２の軸心方向他端側には抜止め部材１３が取付固定されている。 The derailment prevention guide 9 is supported by the track frame 2 via a pivot shaft 12 having a left-right axial center so that the support portion 11 is pivotable about the left-right axial center. 2 is swingably supported.
The pivot support portion of the derailment prevention guide 9 has a structure as shown in FIG.
In FIG. 2 (a), the anti-derailing guide 9 is disposed on the side of the track frame 2 with a space in the left-right direction, and the pivot shaft 12 includes the support portion 11 of the anti-derailing guide 9, the track frame 2, and the like. 1 is fixed to the track frame 2 at one end side in the axial direction (left and right direction) of the pivot shaft 12, and a retaining member 13 is attached to the other end side in the axial center direction of the pivot shaft 12. It is fixed.

支持部１１は、抜止め部材１３とトラックフレーム２との間に配置されていると共に、抜止め部材１３とトラックフレーム２との間で枢支軸１２の軸心方向に移動可能とされている。
また、枢支軸１２の、支持部１１とトラックフレーム２との対向間にはリングピン１５が固定され、このリングピン１５と支持部１１との間には、枢支軸１２に套嵌されたコイルバネ１４が圧縮状に配置されていて、該コイルバネ１４の付勢力によって支持部１１が抜止め部材１３に押しつけられている。 The support portion 11 is disposed between the retaining member 13 and the track frame 2 and is movable between the retaining member 13 and the track frame 2 in the axial direction of the pivot shaft 12. .
In addition, a ring pin 15 is fixed between the support shaft 11 and the track frame 2 of the pivot shaft 12, and the pivot shaft 12 is fitted between the ring pin 15 and the support portion 11. The coil spring 14 is arranged in a compressed state, and the support portion 11 is pressed against the retaining member 13 by the urging force of the coil spring 14.

この構造によって、脱輪防止ガイド９は左右の脱輪防止突起８の左右方向略中央部に位置決めされている。
なお、脱輪防止ガイド９の支持構造は、この構造のものに限定されることはない。
また、脱輪防止ガイド９は、通常の状態（クローラ式走行装置１が平坦路面を走行する場合における状態）で、ガイド部１０が弾性履帯６の本体部内周面に沿って且つ弾性履帯６の本体部内周面と若干の間隙が空くように位置する。
また、前記クローラ式走行装置１にあっては、脱輪防止ガイド９を、この通常の状態に保持するために、弾性手段１６が脱輪防止ガイド９とトラックフレーム２との間に設けられている。 With this structure, the anti-derailing guide 9 is positioned at a substantially central portion in the left-right direction of the left and right anti-derailing protrusions 8.
In addition, the support structure of the derailment prevention guide 9 is not limited to this structure.
Further, the derailment prevention guide 9 is in a normal state (a state where the crawler type traveling device 1 travels on a flat road surface), the guide portion 10 extends along the inner peripheral surface of the elastic crawler belt 6 and the elastic crawler belt 6. It is positioned so as to leave a slight gap from the inner peripheral surface of the main body.
In the crawler type traveling device 1, the elastic means 16 is provided between the derailment prevention guide 9 and the track frame 2 in order to keep the derailment prevention guide 9 in this normal state. Yes.

第１実施形態では、弾性手段１６は圧縮バネによって構成されていて前後一対設けられ、ガイド部１０の前後の各端部側とトラックフレーム２との間に介装されており、この前後の弾性手段１６によってバランスされて脱輪防止ガイド９が通常の状態に保持され、且つ脱輪防止ガイド９はこの弾性手段１６の弾性力に抗して枢支軸１２回りに揺動するように構成されている。
なお、前記バネ１６は、例えば、その上端側がトラックフレーム２側のバネ受け部１７に固定され、下端側がガイド部１０側のバネ受け部１８に固定されている（バネ１６の上下端部の一方側がバネ受け部１７，１８に接当されるようになっていてもよい）。 In the first embodiment, the elastic means 16 is constituted by a compression spring and is provided in a pair of front and rear, and is interposed between the front and rear end portions of the guide portion 10 and the track frame 2. The derailment prevention guide 9 is balanced by the means 16 and held in a normal state, and the derailment prevention guide 9 is configured to swing around the pivot shaft 12 against the elastic force of the elastic means 16. ing.
For example, the upper end of the spring 16 is fixed to the spring receiving portion 17 on the track frame 2 side, and the lower end is fixed to the spring receiving portion 18 on the guide portion 10 side (one of the upper and lower ends of the spring 16). The side may come into contact with the spring receiving portions 17 and 18).

なお、脱輪防止突起８が左右一対なく、弾性履帯６の幅方向中央側に１つの脱輪防止突起が履帯周方向Ｘに間隔をおいて設けられる場合もあるが、この場合は、ガイド部１０は脱輪防止突起８の左右両側に設けられこととなり、該脱輪防止ガイド９は脱輪防止突起８の形式に応じて形態が種種変更される。
前記構成の脱輪防止ガイド９にあっては、クローラ式走行装置１が突起物に乗り上げて、該突起物によって弾性履帯６の接地部分が下側から突上げられた際に、該突上げ力が脱輪防止ガイド９の前又は後部分に作用すると、該脱輪防止ガイド９は弾性手段１６の弾性力に抗して枢支軸１２回りに揺動して突上げ力から逃げる方向に動き、これによって該突起物との干渉を吸収するので、当該クローラ式走行装置１が採用された走行体の機体が安定するという効果を奏する。 In some cases, there is no pair of left and right projections 8 and a single projection is provided at the center in the width direction of the elastic crawler belt 6 with an interval in the circumferential direction X of the crawler belt. 10 is provided on both the left and right sides of the derailment prevention protrusion 8, and the form of the derailment prevention guide 9 is changed depending on the type of the derailment prevention protrusion 8.
In the wheel slip prevention guide 9 having the above-described configuration, when the crawler type traveling device 1 rides on a protrusion and the grounding portion of the elastic crawler belt 6 is protruded from the lower side by the protrusion, the thrust force is increased. When this acts on the front or rear portion of the anti-wheel removal guide 9, the anti-wheel removal guide 9 swings around the pivot shaft 12 against the elastic force of the elastic means 16 and moves in a direction to escape from the thrust force. As a result, the interference with the protrusions is absorbed, so that there is an effect that the body of the traveling body in which the crawler traveling device 1 is adopted is stabilized.

また、凹凸路面を高速で走行する場合においては、機体に作用する衝撃を吸収することができる。
また、脱輪防止ガイド９が突起物を通過すると脱輪防止ガイド９は弾性手段１６によってすみやかに元の通常位置に戻され、該通常位置に保持される。
また、従来のクローラ式走行装置１のように脱輪防止ガイドがトラックフレームに固定されているクローラ式走行装置を採用したコンバイン等の作業機にあっては、脱輪防止ガイドが突起物に乗り上げたときに、クローラ式走行装置の前部側が大きく上がり、該クローラ式走行装置の前部下方側が死角となり、刈り取り作業等の作業精度が著しく低下するという問題があるが、本実施の形態にあっては、脱輪防止ガイド９の支持部１１のみでクローラ式走行装置１が上がり、該支持部１１が突起物を通り過ぎれば、またすぐに下がるので、前述したクローラ式走行装置１の前部下方側の死角も小さく、また時間も短い。 Further, when traveling on an uneven road surface at a high speed, it is possible to absorb an impact acting on the airframe.
In addition, when the escape prevention guide 9 passes through the protrusion, the escape prevention guide 9 is quickly returned to the original normal position by the elastic means 16 and is held at the normal position.
In addition, in a working machine such as a combine that employs a crawler type traveling device in which the guide for preventing wheel removal is fixed to the track frame as in the conventional crawler type traveling device 1, the guide for preventing wheel removal rides on a protrusion. However, the front side of the crawler type traveling device is greatly raised and the lower part of the front part of the crawler type traveling device becomes a blind spot. In this case, the crawler type traveling device 1 is lifted only by the support portion 11 of the derailment prevention guide 9, and if the support portion 11 passes over the projection, it will be lowered again. The blind spot on the side is small and the time is short.

また、耐脱輪性については、突起物に乗り上げて脱輪防止ガイド９が揺動する場合、弾性履帯６と一緒に動き、脱輪防止突起８とは離反しないので問題はない。
なお、弾性手段１６の取付構造としては、図１の構造のものに限定されることはなく、例えば、図２（ｂ）〜（ｄ）に示すような、構造のものであってもよい。
図２（ｂ）に示す構造のものは、弾性手段１６を圧縮コイルバネによって構成し、脱輪防止ガイド９のガイド部１０側のバネ受け部１８にガイド軸１９を立設し、該ガイド軸１９の上端側をトラックフレーム２側のバネ受け部１７に形成した挿通孔２０に挿通させ、圧縮コイルバネ１６をバネ受け部１７，１８間に介在すると共にガイド軸１９に套嵌した構造のものであり、この構造のものにあっては、コイルバネ１６の端部はバネ受け部１７，１８に接当させるだけでよい。 Further, with respect to anti-roll-off resistance, there is no problem because when the anti-roll-out prevention guide 9 swings on the protrusion, it moves together with the elastic crawler belt 6 and does not separate from the non-wheel-out prevention protrusion 8.
Note that the attachment structure of the elastic means 16 is not limited to the structure shown in FIG. 1, and may have a structure as shown in FIGS. 2B to 2D, for example.
In the structure shown in FIG. 2 (b), the elastic means 16 is constituted by a compression coil spring, a guide shaft 19 is erected on the spring receiving portion 18 on the guide portion 10 side of the anti-wheel removal guide 9, and the guide shaft 19 The upper end side of the frame is inserted into an insertion hole 20 formed in the spring receiving portion 17 on the track frame 2 side, and the compression coil spring 16 is interposed between the spring receiving portions 17 and 18 and is fitted to the guide shaft 19. In this structure, the end of the coil spring 16 only needs to contact the spring receiving portions 17 and 18.

図２（ｃ）に示す構造のものは、弾性手段１６を円柱又は角柱状のウレタン（又はゴム、樹脂等の弾性材）によって構成し、該ウレタン１６の下端側を脱輪防止ガイド９のガイド部１０端部側に設けた受部材２１に嵌合させ、ウレタン１６の上端をトラックフレーム２側に設けた受部材２２に嵌合させているものである。
図２（ｄ）に示す構造のものは、弾性手段１６を筒状のウレタン（又はゴム、樹脂等の弾性材）によって構成し、脱輪防止ガイド９のガイド部１０側の受部材２３にガイド軸２４を立設し、該ガイド軸２４の上端側をトラックフレーム２側の受部材２５に形成した挿通孔２６に挿通させ、ウレタン１６を受部材２３，２５間に介在すると共にガイド軸２４に套嵌した構造のものである。 In the structure shown in FIG. 2 (c), the elastic means 16 is made of cylindrical or prismatic urethane (or elastic material such as rubber, resin, etc.), and the lower end side of the urethane 16 is a guide of the wheel removal prevention guide 9. The upper end of the urethane 16 is fitted to the receiving member 22 provided on the track frame 2 side.
In the structure shown in FIG. 2D, the elastic means 16 is made of cylindrical urethane (or an elastic material such as rubber or resin) and guided to the receiving member 23 on the guide portion 10 side of the derailment prevention guide 9. The shaft 24 is erected, and the upper end side of the guide shaft 24 is inserted into the insertion hole 26 formed in the receiving member 25 on the track frame 2 side, and the urethane 16 is interposed between the receiving members 23 and 25 and is attached to the guide shaft 24. It is a structure with a sleeve.

また、弾性手段１６としては、エアバネやショックアブソーバ等の弾性機構で構成されていてもよい。
要するに、弾性手段１６は、脱輪防止ガイド９を通常の状態に保持することができ、脱輪防止ガイド１６に突上げ力が作用した場合に、弾性変形して脱輪防止ガイド９の動きを許容するものであればよい。
図３（ａ）に示す第２実施形態の脱輪防止ガイド９にあっては、脱輪防止ガイド９のガイド部１０の前後一端側に支持部１１を設け、前後他端側とトラックフレーム２との間に弾性手段１６を介在させている。 Further, the elastic means 16 may be constituted by an elastic mechanism such as an air spring or a shock absorber.
In short, the elastic means 16 can hold the derailment prevention guide 9 in a normal state, and when a push-up force acts on the derailment prevention guide 16, it is elastically deformed to move the derailment prevention guide 9. Anything is acceptable.
In the derailment prevention guide 9 of the second embodiment shown in FIG. 3A, a support portion 11 is provided on one end of the front and rear of the guide portion 10 of the derailment prevention guide 9, and the front and rear other end side and the track frame 2 are provided. The elastic means 16 is interposed between the two.

弾性手段１６自体、弾性手段１６の取付構造は前記実施の形態と同様に構成される。
図４に示す第３実施形態の脱輪防止ガイド９にあっては、枢支はされてはいなく、脱輪防止ガイド９をトラックフレーム２に上下動自在に支持すると共に、脱輪防止ガイド９とトラックフレーム２との間に弾性手段１６を介装したものである。
この実施形態のものにあっては、脱輪防止ガイド９の前後端部側と、トラックフレーム２側に設けた受部材２７との間にウレタン等の弾性材からなる弾性手段１６を介在させ、脱輪防止ガイド９の前後端部側に形成されたネジ孔２８にボルト２９を脱輪防止ガイド９の下方側から螺合し、該ボルト２９を、前記弾性手段１６及び受部材２７に貫通させると共に該ボルト２９の先端側（上端側）にナット部材３０を螺合することにより、脱輪防止ガイド９をトラックフレーム２に上下動自在に支持したものである。 The elastic means 16 itself and the mounting structure of the elastic means 16 are configured in the same manner as in the above embodiment.
In the derailment prevention guide 9 of the third embodiment shown in FIG. 4, the derailment prevention guide 9 is not pivotally supported, and is supported on the track frame 2 so as to be movable up and down. The elastic means 16 is interposed between the track frame 2 and the track frame 2.
In this embodiment, the elastic means 16 made of an elastic material such as urethane is interposed between the front and rear end side of the wheel removal prevention guide 9 and the receiving member 27 provided on the track frame 2 side, Bolts 29 are screwed into the screw holes 28 formed on the front and rear end portions of the derailment prevention guide 9 from the lower side of the derailment prevention guide 9 so that the bolts 29 penetrate the elastic means 16 and the receiving member 27. At the same time, a nut member 30 is screwed onto the front end side (upper end side) of the bolt 29 to support the derailment prevention guide 9 on the track frame 2 so as to be movable up and down.

また、ウレタンからなる弾性手段１６の下部側には、底面側から凹設された凹部３２が形成され、この凹部３２内にボルト２９に套嵌されたコイルバネからなる弾性手段１６が収容されている。
該コイルバネからなる弾性手段１６の上端側は凹部３２の上端に接当し、下端側は脱輪防止ガイド９に接当している。
また、脱輪防止ガイド９の底面には、ボルト２９の頭部３３を収容する凹部３４が形成されている。 In addition, a concave portion 32 that is recessed from the bottom surface side is formed on the lower side of the elastic means 16 made of urethane, and the elastic means 16 that is made of a coil spring fitted into a bolt 29 is accommodated in the concave portion 32. .
The upper end side of the elastic means 16 composed of the coil spring is in contact with the upper end of the recess 32, and the lower end side is in contact with the wheel removal prevention guide 9.
Further, a recess 34 for accommodating the head 33 of the bolt 29 is formed on the bottom surface of the wheel removal prevention guide 9.

この実施形態のものにあっては、脱輪防止ガイド９が突起物によって突き上げられた際に、ウレタン１６及びコイルバネ１６の弾性力に抗して脱輪防止ガイド９が上昇して、突起物との干渉を包み込むように吸収する。
また、前記第１、２実施形態にあっては、突起物に脱輪防止ガイド９が乗り上げたときに、支持部１１の部分でクローラ式走行装置１が上がるが、この第３実施形態のものにあっては、脱輪防止ガイド９が全体的に上下動するので、突起物によって脱輪防止ガイド９が突き上げられてもクローラ式走行装置１が上がることはない。 In this embodiment, when the escape prevention guide 9 is pushed up by the protrusion, the removal prevention guide 9 rises against the elastic force of the urethane 16 and the coil spring 16, and the protrusion and To absorb the interference.
In the first and second embodiments, the crawler type traveling device 1 is raised at the support portion 11 when the anti-derailing guide 9 rides on the protrusion. In this case, since the derailment prevention guide 9 moves up and down as a whole, the crawler type traveling device 1 does not rise even if the derailment prevention guide 9 is pushed up by the protrusion.

なお、この実施形態ものにおいて、脱輪防止ガイド９が水平方向に対して傾動するように、ボルト２９と該ボルト２９を挿通させるボルト挿通孔との隙間を大きく形成してもよい。
また、脱輪防止ガイド９は、その他の方法によって上下動自在に支持されていてもよい。
図３（ｂ）に示す第４実施形態のものは、脱輪防止ガイド９を、トラックフレーム２に、左右方向の軸心を有する枢支軸１２に軸心回りに揺動自在に枢支すると共に全体的に上下動するように支持したものを示している。 In this embodiment, a large gap may be formed between the bolt 29 and the bolt insertion hole through which the bolt 29 is inserted so that the wheel removal prevention guide 9 tilts with respect to the horizontal direction.
Further, the derailment prevention guide 9 may be supported so as to be movable up and down by other methods.
In the fourth embodiment shown in FIG. 3 (b), the derailment prevention guide 9 is pivotally supported on the track frame 2 on a pivot shaft 12 having a left and right axis so as to be swingable around the axis. In addition, it shows what is supported to move up and down as a whole.

この実施形態のものにあっては、脱輪防止ガイド９の支持部１１に形成されていて前記枢支軸１２を挿通する軸挿通孔３５が上下方向に長い長孔によって形成されていることにより、脱輪防止ガイド９が左右軸回りに回動自在で全体的に上下動するように支持されているものである。
また、ガイド部１０の前後端部側とトラックフレーム２側に設けた受部材３６との間に弾性手段１６が介装されている。
この実施形態のものにあっては、下側からの突上げ力に対して、脱輪防止ガイドは枢支軸１２の軸心回りに傾動すると共に軸挿通孔３５に沿って上方移動し、下側からの突上げ力を良好に吸収する。 In this embodiment, the shaft insertion hole 35 that is formed in the support portion 11 of the derailment prevention guide 9 and through which the pivot shaft 12 is inserted is formed by a long hole that is long in the vertical direction. The derailment prevention guide 9 is supported so as to be rotatable about the left and right axis and to move up and down as a whole.
Further, the elastic means 16 is interposed between the front and rear end portions of the guide portion 10 and the receiving member 36 provided on the track frame 2 side.
In this embodiment, the anti-derailing guide tilts around the axis of the pivot shaft 12 and moves upward along the shaft insertion hole 35 with respect to the pushing force from the lower side. Absorbs the thrust from the side well.

（ａ）はクローラ式走行装置の側面図、（ｂ）はで第１実施形態に係る脱輪防止ガイドの取付部分の側面拡大図ある。(A) is a side view of a crawler type traveling device, and (b) is an enlarged side view of a mounting portion of a derailment prevention guide according to the first embodiment. （ａ）は脱輪防止ガイド枢支部分の平面断面図、（ｂ）〜（ｄ）は弾性手段の変形例及び弾性手段の取付構造の変形例を示す側面一部断面図である。(A) is a plane sectional view of a derailment prevention guide pivot part, and (b) to (d) are partial side sectional views showing a modification of the elastic means and a modification of the mounting structure of the elastic means. （ａ）は第２実施形態に係る脱輪防止ガイドの取付部分の側面拡大図、（ｂ）は第４実施形態に係る脱輪防止ガイドの取付部分の側面拡大図である。(A) is the side surface enlarged view of the attachment part of the derailment prevention guide which concerns on 2nd Embodiment, (b) is the side enlarged view of the attachment part of the derailment prevention guide which concerns on 4th Embodiment. （ａ）は第３実施形態に係る脱輪防止ガイドの取付部分の側面拡大図、（ｂ）は（ａ）のＡ部分の拡大断面図である。(A) is a side surface enlarged view of the attachment part of the derailment prevention guide which concerns on 3rd Embodiment, (b) is an expanded sectional view of A part of (a).

符号の説明Explanation of symbols

２ トラックフレーム
３ 駆動輪
４ アイドラ
５ 転輪
６ 履帯
８ 脱輪防止突起
９ 脱輪防止ガイド
１２ 枢支軸
１６ 弾性手段 2 Track Frame 3 Drive Wheel 4 Idler 5 Rolling Wheel 6 Crawler Track 8 Derailment Prevention Projection 9 Derailment Prevention Guide 12 Pivot Shaft 16 Elastic Means

Claims (3)

トラックフレーム（２）に支持された駆動輪（３）、アイドラ（４）及び転輪（５）に巻き掛けられた無端帯状の履帯（６）を備え、この履帯（６）の内周側に、周方向（Ｘ）に間隔をおいて設けられていて少なくとも転輪（５）に係合することにより履帯（６）の脱輪を防止する脱輪防止突起（８）を設け、前記履帯（６）が接地するがわであって且つ履帯（６）の内周側において、前記脱輪防止突起（８）に係合することで履帯（６）の脱輪を防止する脱輪防止ガイド（９）を備えたクローラ式走行装置において、
履帯（６）の接地部分が下側から突上げられた際に、該突上げ力によって脱輪防止ガイド（９）が逃げる方向に動くように、該脱輪防止ガイド（９）をトラックフレーム（２）に可動可能に支持すると共に、前記突上げ力によって脱輪防止ガイド（９）が弾性力に抗して動くように、該脱輪防止ガイド（９）を通常の状態に保持する弾性手段（１６）を脱輪防止ガイド（９）とトラックフレーム（２）との間に設けたことを特徴とするクローラ式走行装置。 A drive wheel (3) supported by the track frame (2), an idler (4), and an endless belt-like crawler belt (6) wound around a wheel (5) are provided, and on the inner peripheral side of the crawler belt (6) , An anti-derailing projection (8) that is provided at an interval in the circumferential direction (X) and prevents at least the derailment of the crawler belt (6) by engaging with the wheel (5). 6) is a ground contact, and on the inner peripheral side of the crawler belt (6), the crawler belt (6) is prevented from being removed by engaging with the derailment prevention protrusion (8). 9) In the crawler type traveling device provided with
When the ground contact portion of the crawler belt (6) is pushed up from the lower side, the derailment prevention guide (9) is moved to the direction in which the derailment prevention guide (9) escapes by the thrust force. 2) elastic means for supporting the wheel removal prevention guide (9) in a normal state so that the wheel removal prevention guide (9) moves against the elastic force by the thrust force. A crawler type traveling device characterized in that (16) is provided between the wheel removal prevention guide (9) and the track frame (2). トラックフレーム（２）に支持された駆動輪（３）、アイドラ（４）及び転輪（５）に巻き掛けられた無端帯状の履帯（６）を備え、この履帯（６）の内周側に、周方向（Ｘ）に間隔をおいて設けられていて少なくとも転輪（５）に係合することにより履帯（６）の脱輪を防止する脱輪防止突起（８）を設け、前記履帯（６）が接地するがわであって且つ履帯（６）の内周側において、前記脱輪防止突起（８）に係合することで履帯（６）の脱輪を防止する脱輪防止ガイド（９）を備えたクローラ式走行装置において、
履帯（６）の接地部分が下側から突上げられた際に、該突上げ力によって脱輪防止ガイド（９）が逃げる方向に動くように、該脱輪防止ガイド（９）を、トラックフレーム（２）に、左右方向の軸心を有する枢支軸（１２）に軸心回りに揺動自在に枢支すると共に全体的に上下動するように支持したことを特徴とするクローラ式走行装置。 A drive wheel (3) supported by the track frame (2), an idler (4), and an endless belt-like crawler belt (6) wound around a wheel (5) are provided, and on the inner peripheral side of the crawler belt (6) , An anti-derailing projection (8) that is provided at an interval in the circumferential direction (X) and prevents at least the derailment of the crawler belt (6) by engaging with the wheel (5). 6) is a ground contact, and on the inner peripheral side of the crawler belt (6), the crawler belt (6) is prevented from being removed by engaging with the derailment prevention protrusion (8). 9) In the crawler type traveling device provided with
When the ground contact portion of the crawler belt (6) is pushed up from the lower side, the derailment prevention guide (9) is moved to the direction in which the derailment prevention guide (9) escapes by the lifting force. (2) A crawler type traveling device characterized in that it is pivotally supported on a pivot shaft (12) having a left and right axial center so as to be swingable around the central axis and is supported so as to move up and down as a whole. . 前記突上げ力によって脱輪防止ガイド（９）が弾性力に抗して動くように、該脱輪防止ガイド（９）を通常の状態に保持する弾性手段（１６）を脱輪防止ガイド（９）とトラックフレーム（２）との間に設けたことを特徴とする請求項２に記載のクローラ式走行装置。   The elastic means (16) for holding the derailment prevention guide (9) in a normal state is provided so that the derailment prevention guide (9) moves against the elastic force by the thrust force. 3) and the track frame (2), the crawler type traveling device according to claim 2.
JP2007102946A 2007-04-10 2007-04-10 Crawler type traveling device Expired - Fee Related JP5243727B2 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011088519A (en) * 2009-10-21 2011-05-06 Sumitomo Rubber Ind Ltd Elastic crawler vehicle
US20120104840A1 (en) * 2010-11-02 2012-05-03 Zuchoski Jeremie Track assembly for providing traction to an off-road vehicle such as an all-terrain vehicle (atv) or a snowmobile
CN106005073A (en) * 2016-06-29 2016-10-12 徐工集团工程机械股份有限公司 Novel track guiding device

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JPS6173485U (en) * 1984-10-20 1986-05-19
JPH02204182A (en) * 1989-02-01 1990-08-14 Topy Ind Ltd Prevention of slip-off of elastic belt in caterpillar vehicle and device therefor
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JPH07117735A (en) * 1993-10-29 1995-05-09 Iseki & Co Ltd Travel device of working vehicle
JPH0899655A (en) * 1994-09-30 1996-04-16 Seirei Ind Co Ltd Lower rolling wheel supporting mechanism for crawler type travel device

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JPS5430435U (en) * 1977-08-01 1979-02-28
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JPS6173485U (en) * 1984-10-20 1986-05-19
JPH02204182A (en) * 1989-02-01 1990-08-14 Topy Ind Ltd Prevention of slip-off of elastic belt in caterpillar vehicle and device therefor
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JPH07117735A (en) * 1993-10-29 1995-05-09 Iseki & Co Ltd Travel device of working vehicle
JPH0899655A (en) * 1994-09-30 1996-04-16 Seirei Ind Co Ltd Lower rolling wheel supporting mechanism for crawler type travel device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011088519A (en) * 2009-10-21 2011-05-06 Sumitomo Rubber Ind Ltd Elastic crawler vehicle
US20120104840A1 (en) * 2010-11-02 2012-05-03 Zuchoski Jeremie Track assembly for providing traction to an off-road vehicle such as an all-terrain vehicle (atv) or a snowmobile
US9211921B2 (en) * 2010-11-02 2015-12-15 Camso Inc. Track assembly for providing traction to an off-road vehicle such as an all-terrain vehicle (ATV) or a snowmobile
CN106005073A (en) * 2016-06-29 2016-10-12 徐工集团工程机械股份有限公司 Novel track guiding device

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