JP4572090B2

JP4572090B2 - Elastic crawler

Info

Publication number: JP4572090B2
Application number: JP2004172662A
Authority: JP
Inventors: 勝昭横尾
Original assignee: Sumitomo Rubber Industries Ltd
Current assignee: Sumitomo Rubber Industries Ltd
Priority date: 2004-06-10
Filing date: 2004-06-10
Publication date: 2010-10-27
Anticipated expiration: 2024-06-10
Also published as: JP2005349950A

Description

本発明は、各種のクローラ式走行装置に使用される弾性クローラに関する。 The present invention relates to an elastic crawler used in various crawler type traveling devices.

弾性クローラ式走行装置は、現在、コンバイン等の農業機械、バックホー等の建設機械等に幅広く用いられている。これらの農業機械等には無端状のゴムベルト等からなる弾性クローラが装着され、この弾性クローラは無端帯状に形成されたクローラ本体と、このクローラ本体の内周面に形成された複数の駆動用の突起と、外周面に所定のパターンで形成されたラグ群とからなるものが使用されている。 The elastic crawler type traveling device is currently widely used in agricultural machinery such as a combine, construction machinery such as a backhoe. These agricultural machines and the like are equipped with an elastic crawler made of an endless rubber belt or the like. What consists of a processus | protrusion and the lug group formed in the outer peripheral surface with the predetermined pattern is used.

このような弾性クローラとしては、クローラ本体の内部に芯金を埋設していない芯金レスのものがある。クローラ本体の弾性クローラは、芯金を有するものに比べて幅方向の剛性が低いため、抗張体に加えて周方向に対して傾斜した方向にスチールコード等からなる抗張力コードを併設することによって構成されるバイアスコード等の幅方向補強層を埋設している。しかしながら、このような弾性クローラは、芯金を有するものと比較して幅方向の剛性が低いため、弾性クローラが取り付けられている車両が不整地を走行したり旋回すると、幅方向に折れ曲がり機体側に備えられている転輪から外れてしまったり、弾性クローラの周方向軸が車両の前後方向に対してずれを生じ、前記転輪が突起に乗り上げて脱輪し弾性クローラが外れてしまうことがあった。このため、複数の駆動用またはガイド用の突起を弾性クローラ中央部および内周面端部に設けて脱輪の発生を低減する等の対策が提案されている（例えば、特許文献１参照）。 As such an elastic crawler, there is one that does not have a core metal embedded in the crawler body. Since the elastic crawler of the crawler body is less rigid in the width direction than that having a cored bar, by adding a tensile cord made of steel cord or the like in a direction inclined with respect to the circumferential direction in addition to the tensile body A width direction reinforcing layer such as a bias cord is embedded. However, such an elastic crawler has a lower rigidity in the width direction than that having a metal core. Therefore, when the vehicle to which the elastic crawler is attached travels on an uneven terrain or turns, it is bent in the width direction and the side of the machine or come off from the rolling wheel provided in the, be circumferential axis of the elastic crawler deviated against the longitudinal direction of the vehicle, the rolling wheel deviates is derailing elastically crawler rides on projections there were. For this reason, measures such as providing a plurality of driving or guide protrusions at the central portion of the elastic crawler and the end portion of the inner peripheral surface to reduce the occurrence of wheel removal have been proposed (for example, see Patent Document 1).

特開平６−３２２６２号公報（第３頁）JP-A-6-32262 (page 3)

しかしながら、前記従来例のような弾性クローラにおける突起は、弾性体だけで作製されているため横方向の剛性が低く、転輪が当たったり乗り上げたりすると、変形をしてしまい脱輪を効果的に防止することができない。これを防ぐために、前記突起内に金属製または合成樹脂製の芯体を埋設して当該突起の剛性を高め、変形を小さくして脱輪を防止することが考えられるが、芯体を埋設すると突起自体はつぶれにくくなるものの、クローラ本体を支持している抗張体と前記芯体は、両者の間に弾性体を介在させた構造であるので、突起に転輪が当たったり乗り上げたりすると当該突起の横ズレが起こり、脱輪対策としては不十分であった。
本発明は、このような事情に鑑みてなされたものであり、転輪の脱輪を確実に防止することができる弾性クローラを提供することを目的としている。 However, the protrusions in the elastic crawler as in the conventional example are made of only an elastic body, so the rigidity in the lateral direction is low, and if the wheel hits or rides on, it deforms and effectively removes the wheel. It cannot be prevented. In order to prevent this, it is conceivable to embed a metal or synthetic resin core body in the protrusions to increase the rigidity of the protrusions and to reduce deformation to prevent derailment. Although the protrusion itself is not easily crushed, the tensile body supporting the crawler body and the core body have a structure in which an elastic body is interposed between the two, so that if the protrusion hits or rides on the protrusion, Lateral misalignment of the protrusion occurred, which was insufficient as a measure against wheel loss.
The present invention has been made in view of such circumstances, and an object of the present invention is to provide an elastic crawler that can reliably prevent the wheel from being removed.

本発明の弾性クローラは、無端帯状に形成されたゴム様弾性体からなるクローラ本体と、このクローラ本体の内周面の周方向に沿って一定のピッチで設けられた、駆動用またはガイド用の弾性体からなる複数の突起と、前記クローラ本体の外周面に所定のパターンで形成された複数のラグと、前記クローラ本体の内部に周方向に沿って埋設されたコードからなる抗張体とを備えた芯金レスの弾性クローラであって、
前記突起は、クローラ本体の幅方向中央部において当該クローラ本体の全周に亘って設けられており、
前記抗張体は、前記突起の下方を含むクローラ本体の内部に埋設されており、
前記突起内に当該突起を支持する支持部材が埋設されており、この支持部材は、平板状のベース部と、このベース部から立設され、前記抗張体の埋設方向と平行な壁面を有する壁部とで構成されており、前記ベース部は前記抗張体の接地側に配設されており、かつ、前記壁部は前記抗張体を構成するコードの間を通り抜けるように前記ベース部に立設されており、
前記クローラ本体の内部であって前記抗張体の接地側に補強層が埋設されており、この補強層と抗張体とによって前記ベース部が挟持されていることを特徴としている。 The elastic crawler of the present invention is a crawler body made of a rubber-like elastic body formed in an endless belt shape, and a drive or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body. A plurality of protrusions made of an elastic body, a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler body, and a tensile body made of a cord embedded in the crawler body along the circumferential direction An elastic crawler without a mandrel,
The protrusion is provided over the entire circumference of the crawler body at the center in the width direction of the crawler body.
The tensile body is embedded in the crawler body including the lower part of the protrusion,
A support member that supports the protrusion is embedded in the protrusion, and the support member has a flat base portion and a wall surface that is erected from the base portion and parallel to the embedded direction of the tensile body. And the base part is disposed on the ground side of the tensile body, and the base part passes through between the cords constituting the tensile body. Is standing
A reinforcing layer is embedded in the ground side of the tensile body inside the crawler body, and the base portion is sandwiched between the reinforcing layer and the tensile body.

かかる弾性クローラは、クローラ本体の内周面に形成された突起の内部に、これら突起を支持する支持部材が埋設されている。そして、この支持部材のベース部が、前記クローラ本体に埋設されている抗張体の接地側に配設されており、かつ前記抗張体を構成するコードの間を通り抜けるようにして壁部が前記ベース部に立設されている。したがって、前記ベース部、壁部および抗張体が一体となって突起に作用する転輪からの力に対抗するため、従来のものに比べ、変形や横ズレの量が小さくなる。その結果、転輪は前記突起により確実にガイドされ、脱輪の発生が防止される。 In such an elastic crawler, a support member that supports these protrusions is embedded in the protrusions formed on the inner peripheral surface of the crawler body. The base portion of the support member is disposed on the grounding side of the tensile body embedded in the crawler body, and the wall portion passes through between the cords constituting the tensile body. It is erected on the base portion. Therefore, since the base portion, the wall portion, and the tensile body are integrated to counteract the force from the wheel that acts on the protrusion, the amount of deformation and lateral displacement is reduced as compared with the conventional one. As a result, the wheel is reliably guided by the protrusion, and the occurrence of wheel removal is prevented.

前記クローラ本体の内部であって前記抗張体の接地側に補強層が埋設されており、この補強層と抗張体とによって前記ベース部が挟持されている。この補強層を設けることで、支持部材が、前記抗張体及び補強層と共に作用し、当該支持部材の横ズレや傾きが起こるのを効果的に防止することができる。 Wherein an internal of the crawler body and the reinforcing layer is embedded in the ground side of the tension member, the base portion by the reinforcing layer and the tensile body that is sandwiched. By providing this reinforcing layer, the support member acts together with the tensile body and the reinforcing layer, and it is possible to effectively prevent the lateral displacement and inclination of the support member.

また、前記支持部材の壁部が、対向して配置された一対の壁体からなっており、この一対の壁体を互いに連結する補強部材を備えているのが好ましい。支持部材の壁部は、抗張体を構成するコード群の間を挿通するため、前記壁部の厚さは小さいほうが抗張体全体としてはバランス良く配置され当該抗張体の強度を確保することができる。しかしながら、壁部の厚さを小さくすると、支持部材の横方向の荷重支持能力が低下するので、これを解決するためにスペーサとして前記補強部材で一対の壁体を互いに連結するのが好ましい。この補強部材を用いると、抗張体の強度の確保と、支持部材の横方向の荷重支持能力の確保とを両方達成することができる。 Moreover, it is preferable that the wall part of the said supporting member consists of a pair of wall body arrange | positioned facing, and is equipped with the reinforcement member which connects this pair of wall body mutually. Since the wall portion of the support member is inserted between the cord groups constituting the tensile body, the smaller the thickness of the wall portion, the better the overall tensile body, and the strength of the tensile body is ensured. be able to. However, if the thickness of the wall portion is reduced, the load supporting ability in the lateral direction of the support member is lowered. To solve this, it is preferable to connect the pair of wall bodies to each other with the reinforcing member as a spacer. When this reinforcing member is used, both of the strength of the tensile body and the securing of the load supporting ability in the lateral direction of the supporting member can be achieved.

また、本発明の弾性クローラは、無端帯状に形成されたゴム様弾性体からなるクローラ本体と、このクローラ本体の内周面の周方向に沿って一定のピッチで設けられた、駆動用またはガイド用の弾性体からなる複数の突起と、前記クローラ本体の外周面に所定のパターンで形成された複数のラグと、前記クローラ本体の内部に周方向に沿って埋設されたコードからなる抗張体とを備えた芯金レスの弾性クローラであって、
前記抗張体は、前記突起の下方を含むクローラ本体の内部に埋設されており、
前記突起内に当該突起を支持する支持部材が埋設されており、この支持部材は、平板状のベース部と、このベース部から立設され、前記抗張体の埋設方向と平行な壁面を有する壁部とで構成されており、前記ベース部は前記抗張体の接地側に配設されており、かつ、前記壁部は前記抗張体を構成するコードの間を通り抜けるように前記ベース部に立設されており、
前記クローラ本体の内部であって前記抗張体の接地側に補強層が埋設されており、この補強層と抗張体とによって前記ベース部が挟持されており、
前記クローラ本体の内部であって、前記抗張体を挟んで前記支持部材のベース部の反対側に挟持部材が埋設されており、この挟持部材と前記ベース部とによって前記抗張体が挟持されていることを特徴としている。 The elastic crawler of the present invention includes a crawler body made of a rubber-like elastic body formed in an endless belt shape, and a drive or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body. Tensile body comprising a plurality of protrusions made of elastic material, a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler body, and a cord embedded in the crawler body along the circumferential direction A coreless elastic crawler with
The tensile body is embedded in the crawler body including the lower part of the protrusion,
A support member that supports the protrusion is embedded in the protrusion, and the support member has a flat base portion and a wall surface that is erected from the base portion and parallel to the embedded direction of the tensile body. And the base part is disposed on the ground side of the tensile body, and the base part passes through between the cords constituting the tensile body. Is standing
A reinforcement layer is embedded in the ground side of the tensile body inside the crawler body, and the base portion is sandwiched between the reinforcement layer and the tensile body,
A clamping member is embedded inside the crawler body on the opposite side of the base portion of the support member with the tensile body interposed therebetween, and the tensile body is sandwiched between the clamping member and the base portion. It is characterized by having .

また、本発明の弾性クローラは、無端帯状に形成されたゴム様弾性体からなるクローラ本体と、このクローラ本体の内周面の周方向に沿って一定のピッチで設けられた、駆動用またはガイド用の弾性体からなる複数の突起と、前記クローラ本体の外周面に所定のパターンで形成された複数のラグと、前記クローラ本体の内部に周方向に沿って埋設されたコードからなる抗張体とを備えた芯金レスの弾性クローラであって、
前記クローラ本体の幅方向の両側部において、当該クローラ本体の内周面の周方向に沿って弾性体からなる複数の膨出部が設けられており、
前記抗張体は、前記膨出部の下方を含むクローラ本体の内部に埋設されており、
前記膨出部内に当該膨出部を支持する支持部材が埋設されており、この支持部材は、平板状のベース部と、このベース部から立設され、前記抗張体の埋設方向と平行な壁面を有する壁部とで構成されており、前記ベース部は前記抗張体の接地側に配設されており、かつ、前記壁部は前記抗張体を構成するコードの間を通り抜けるように前記ベース部に立設されており、
前記クローラ本体の内部であって前記抗張体の接地側に補強層が埋設されており、この補強層と抗張体とによって前記ベース部が挟持されていることを特徴としている。 The elastic crawler of the present invention includes a crawler body made of a rubber-like elastic body formed in an endless belt shape, and a drive or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body. Tensile body comprising a plurality of protrusions made of elastic material, a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler body, and a cord embedded in the crawler body along the circumferential direction A coreless elastic crawler with
On both sides in the width direction of the crawler body, a plurality of bulging portions made of an elastic body are provided along the circumferential direction of the inner peripheral surface of the crawler body,
The tensile body is embedded in the crawler body including the lower part of the bulging portion,
Wherein and supporting member for supporting the bulged portion in the bulging portion is embedded, the support member includes a plate-like base portion is erected from the base portion, the parallel buried direction of the stretch inhibitor Made up by a wall portion having a wall surface, said base portion is disposed on the ground side of the stretch inhibitor, and said wall portion so as to pass through between the codes constituting the stretch inhibitor In the base part,
A reinforcing layer is embedded in the ground side of the tensile body inside the crawler body, and the base portion is sandwiched between the reinforcing layer and the tensile body .

この場合も、前記と同様に、支持部材のベース部が、前記クローラ本体に埋設されている抗張体の接地側に配設されており、かつ前記抗張体を構成するコードの間を通り抜けるようにして壁部が前記ベース部に立設されているので、前記ベース部、壁部および抗張体が一体となって突膨出部に作用する転輪からの力に対抗するため、従来のものに比べ、変形や横ズレの量が小さくなる。その結果、転輪は前記膨出部により確実にガイドされ、脱輪の発生が防止される。 Also in this case, as described above, the base portion of the support member is disposed on the grounding side of the tensile body embedded in the crawler body and passes between the cords constituting the tensile body. In this way, since the wall portion is erected on the base portion, the base portion, the wall portion, and the tensile body are integrated to counteract the force from the rolling wheel that acts on the protruding bulge portion. The amount of deformation and lateral misalignment is smaller than that of As a result, the wheel is reliably guided by the bulging portion, and the occurrence of wheel removal is prevented.

前記クローラ本体の内部であって前記抗張体の接地側に補強層が埋設されており、この補強層と抗張体とによって前記ベース部が挟持されている。
また、前記支持部材のベース部に前記壁部と対向して補助壁が立設されているのが好ましい。前記壁部と補助壁とを互いに連結する補強部材を設けることもできる。
前記クローラ本体の内部であって、前記抗張体を挟んで前記支持部材のベース部の反対側に挟持部材が埋設されており、この挟持部材と前記ベース部とによって前記抗張体が挟持されているのが好ましい。 Wherein an internal of the crawler body and the reinforcing layer is embedded in the ground side of the tension member, the base portion by the reinforcing layer and the tensile body that is sandwiched.
Further, it is preferable that an auxiliary wall is erected on the base portion of the support member so as to face the wall portion. A reinforcing member for connecting the wall portion and the auxiliary wall to each other may be provided.
A clamping member is embedded inside the crawler body on the opposite side of the base portion of the support member with the tensile body interposed therebetween, and the tensile body is sandwiched between the clamping member and the base portion. It is preferable.

さらに、本発明の弾性クローラは、無端帯状に形成されたゴム様弾性体からなるクローラ本体と、このクローラ本体の内周面の周方向に沿って一定のピッチで設けられた、駆動用またはガイド用の弾性体からなる複数の突起と、前記クローラ本体の外周面に所定のパターンで形成された複数のラグと、前記クローラ本体の内部に周方向に沿って埋設されたコードからなる抗張体とを備えた芯金レスの弾性クローラであって、
前記抗張体は、前記クローラ本体の幅方向の両側部の下方を含むクローラ本体の内部に埋設されており、
前記クローラ本体の幅方向の両側部内のそれぞれに当該両側部を支持する支持部材が埋設されており、各支持部材は、平板状のベース部と、このベース部から立設され、前記抗張体の埋設方向と平行な壁面を有する壁部とで構成されており、前記ベース部は前記抗張体の接地側に配設されており、かつ、前記壁部は前記抗張体を構成するコードの間を通り抜けるように前記ベース部に立設されており、
前記クローラ本体の内部であって前記抗張体の接地側に補強層が埋設されており、この補強層と抗張体とによって前記ベース部が挟持されていることを特徴としている。 Further, the elastic crawler of the present invention is a crawler body made of a rubber-like elastic body formed in an endless belt shape, and a drive or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body. Tensile body comprising a plurality of protrusions made of elastic material, a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler body, and a cord embedded in the crawler body along the circumferential direction A coreless elastic crawler with
The tensile body is embedded in the interior of the crawler body including the lower part of both sides in the width direction of the crawler body,
Support members for supporting the both side portions are embedded in each of both side portions in the width direction of the crawler body, and each support member is erected from a flat base portion and the base portion. A wall portion having a wall surface parallel to the embedding direction, the base portion is disposed on the grounding side of the tensile body, and the wall portion is a cord constituting the tensile body Is erected on the base so as to pass between
A reinforcing layer is embedded in the ground side of the tensile body inside the crawler body, and the base portion is sandwiched between the reinforcing layer and the tensile body.

この場合も、前記と同様に、支持部材のベース部が、前記クローラ本体に埋設されている抗張体の接地側に配設されており、かつ前記抗張体を構成するコードの間を通り抜けるようにして壁部が前記ベース部に立設されているので、前記ベース部、壁部および抗張体が一体となって突当該壁部に作用する転輪からの力に対抗するため、変形や横ズレの量が小さくなる。その結果、転輪は前記壁部により確実にガイドされ、脱輪の発生が防止される。 Also in this case, as described above, the base portion of the support member is disposed on the grounding side of the tensile body embedded in the crawler body and passes between the cords constituting the tensile body. In this way, since the wall portion is erected on the base portion, the base portion, the wall portion, and the tensile body are integrated so as to counteract the force from the rolling wheel acting on the wall portion. And the amount of lateral displacement becomes smaller. As a result, the wheel is reliably guided by the wall portion, and the occurrence of wheel removal is prevented.

前記クローラ本体の内部であって前記抗張体の接地側に補強層が埋設されており、この補強層と抗張体とによって前記ベース部が挟持されている。
前記支持部材のベース部に前記壁部と対向して補助壁が立設されているのが好ましい。前記壁部と補助壁とを互いに連結する補強部材を設けることもできる。
また、本発明の弾性クローラは、無端帯状に形成されたゴム様弾性体からなるクローラ本体と、このクローラ本体の内周面の周方向に沿って一定のピッチで設けられた、駆動用またはガイド用の弾性体からなる複数の突起と、前記クローラ本体の外周面に所定のパターンで形成された複数のラグと、前記クローラ本体の内部に周方向に沿って埋設されたコードからなる抗張体とを備えた芯金レスの弾性クローラであって、
前記抗張体は、前記クローラ本体の幅方向の両側部の下方を含むクローラ本体の内部に埋設されており、
前記クローラ本体の幅方向の両側部内に当該両側部を支持する支持部材が埋設されており、この支持部材は、平板状のベース部と、このベース部から立設され、前記抗張体の埋設方向と平行な壁面を有する壁部とで構成されており、前記ベース部は前記抗張体の接地側に配設されており、かつ、前記壁部は前記抗張体を構成するコードの間を通り抜けるように前記ベース部に立設されており、
前記クローラ本体の内部であって前記抗張体の接地側に補強層が埋設されており、この補強層と抗張体とによって前記ベース部が挟持されており、
前記クローラ本体の内部であって、前記抗張体を挟んで前記支持部材のベース部の反対側に挟持部材が埋設されており、この挟持部材と前記ベース部とによって前記抗張体が挟持されていることを特徴としている。

A reinforcing layer is embedded in the crawler main body and on the grounding side of the tensile body, and the base portion is sandwiched between the reinforcing layer and the tensile body.
It is preferable that an auxiliary wall is erected on the base portion of the support member so as to face the wall portion. A reinforcing member for connecting the wall portion and the auxiliary wall to each other may be provided.
The elastic crawler of the present invention includes a crawler body made of a rubber-like elastic body formed in an endless belt shape, and a drive or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body. Tensile body comprising a plurality of protrusions made of elastic material, a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler body, and a cord embedded in the crawler body along the circumferential direction A coreless elastic crawler with
The tensile body is embedded in the interior of the crawler body including the lower part of both sides in the width direction of the crawler body,
Support members for supporting the two side portions are embedded in both side portions in the width direction of the crawler body, and the support member is provided with a flat plate-like base portion and the base portion so as to be embedded in the tensile body. A wall portion having a wall surface parallel to the direction, the base portion is disposed on the grounding side of the tensile body, and the wall portion is between cords constituting the tensile body. Is erected on the base so as to pass through
A reinforcement layer is embedded in the ground side of the tensile body inside the crawler body, and the base portion is sandwiched between the reinforcement layer and the tensile body,
A clamping member is embedded inside the crawler body on the opposite side of the base portion of the support member with the tensile body interposed therebetween, and the tensile body is sandwiched between the clamping member and the base portion. It is characterized by having .

本発明の弾性クローラは、クローラ本体の内周面に形成された突起、膨出部またはクローラ本体の両側部の内部に、これら突起等を支持する支持部材が埋設されている。そして、この支持部材のベース部が、前記クローラ本体に埋設されている抗張体の接地側に配設されており、かつ前記抗張体を構成するコードの間を通り抜けるようにして壁部が前記ベース部に立設されている。したがって、前記ベース部、壁部および抗張体が一体となって突起等に作用する転輪からの力に対抗するため、従来のものに比べ、変形や横ズレの量が小さくなる。その結果、転輪は前記突起等により確実にガイドされ、脱輪の発生が防止される。 In the elastic crawler of the present invention, support members for supporting the protrusions and the like are embedded in the protrusions, the bulging portions formed on the inner peripheral surface of the crawler main body, or both side portions of the crawler main body. The base portion of the support member is disposed on the grounding side of the tensile body embedded in the crawler body, and the wall portion passes through between the cords constituting the tensile body. It is erected on the base portion. Therefore, since the base part, the wall part, and the tensile body are integrated to counteract the force from the rolling wheels acting on the protrusions and the like, the amount of deformation and lateral displacement is reduced as compared with the conventional one. As a result, the wheels are reliably guided by the protrusions and the like, and the occurrence of wheel removal is prevented.

以下、添付図面に基づいて、本発明の弾性クローラの実施の形態を詳細に説明する。
図１は本発明の第１の実施の形態に係る弾性クローラCを内周面側から見た部分平面図であり、また図２はこの弾性クローラＣを外周面側から見た部分平面図である。弾性クローラＣは、クローラ本体１と、このクローラ本体１の内周面の周方向（図１〜２において上下方向）に沿って一定のピッチで設けられた、駆動用またはガイド用突起２と、前記クローラ本体１の外周面に形成されたラグ３とを備えた、いわゆる芯金レスの弾性クローラである。この弾性クローラＣは、例えば駆動輪、アイドラ及び当該駆動輪とアイドラとの間に列設された複数の転輪３０（図３参照）を備えたクローラ走行装置に用いられ、前記スプロケット等の外周に弾性クローラＣが巻き掛けられる。弾性クローラＣは駆動輪の外周面と摩擦によって駆動させられる。 Hereinafter, embodiments of the elastic crawler of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a partial plan view of the elastic crawler C according to the first embodiment of the present invention viewed from the inner peripheral surface side, and FIG. 2 is a partial plan view of the elastic crawler C viewed from the outer peripheral surface side. is there. The elastic crawler C includes a crawler body 1 and driving or guide protrusions 2 provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body 1 (vertical direction in FIGS. 1 and 2). This is a so-called coreless elastic crawler provided with a lug 3 formed on the outer peripheral surface of the crawler body 1. The elastic crawler C is used in a crawler traveling device including, for example, a driving wheel, an idler, and a plurality of rolling wheels 30 (see FIG. 3) arranged in a row between the driving wheel and the idler. An elastic crawler C is wound around the cable. The elastic crawler C is driven by friction with the outer peripheral surface of the drive wheel.

クローラ本体１は、ゴム様弾性体によってほぼ一定厚さの無端帯状に形成されており、その内周面には、クローラ走行装置の転輪３０が前記突起２をまたいで転動する転動面１aを有している。このクローラ本体１の外周面には、その断面が略台形状となるように突出した複数のラグ３が前記クローラ本体１と一体に形成されている。このラグ３はクローラ本体１の全周に一定のピッチで形成されており、本実施の形態では、クローラ本体１の幅方向（図２において左右方向）と略平行に長いラグ３aと短いラグ３bとが交互に設けられているが、その形状、ピッチ及び配置場所等は、本発明において特に限定されるものではなく、クローラ本体１に要求される強度や使用条件等に応じて適宜選定することができる。 The crawler body 1 is formed in an endless belt shape having a substantially constant thickness by a rubber-like elastic body, and on its inner peripheral surface, a rolling surface on which a roller 30 of the crawler traveling device rolls across the protrusion 2. 1a. A plurality of lugs 3 protruding so as to have a substantially trapezoidal cross section are formed integrally with the crawler body 1 on the outer peripheral surface of the crawler body 1. The lugs 3 are formed at a constant pitch on the entire circumference of the crawler main body 1. In the present embodiment, the long lugs 3a and the short lugs 3b are substantially parallel to the width direction (left-right direction in FIG. 2) of the crawler main body 1. Are alternately provided, but the shape, pitch, arrangement location, and the like are not particularly limited in the present invention, and should be appropriately selected according to the strength and use conditions required for the crawler body 1. Can do.

クローラ本体１の内部には当該クローラ本体１の周方向に対する抗張力を確保するための抗張体４（図３参照）が埋設されている。この抗張体４はスチールコード等の抗張力コードからなっており、クローラ本体１の周方向に沿って複数のコードが並設されている。また、本実施の形態では、前記抗張体４の下方（図３において下側。弾性クローラの接地面側のこと）に補強層８が埋設されており、この補強層８はバイアスコード等からなっている。 A tensile body 4 (see FIG. 3) for securing a tensile strength in the circumferential direction of the crawler body 1 is embedded in the crawler body 1. The tensile body 4 is made of a tensile cord such as a steel cord, and a plurality of cords are arranged in parallel along the circumferential direction of the crawler body 1. Further, in the present embodiment, a reinforcing layer 8 is embedded below the tensile body 4 (lower side in FIG. 3; the grounding surface side of the elastic crawler). The reinforcing layer 8 is formed from a bias cord or the like. It has become.

前記突起２は、略切頭角錐台形状を呈しており、クローラ本体１の幅方向中央部に全周に亘って設けられている。そして、この突起２の両側に前述した転動面１aが形成されており、前記突起２をまたぐようにして前記転輪３０が転動面１a上を転動する。その際、転輪３０がクローラ本体１の内周面からはみ出ることがないように当該転輪３０の位置をガイドする役割を前記突起２が果たしている。 The protrusion 2 has a substantially truncated pyramid shape and is provided at the center of the crawler body 1 in the width direction over the entire circumference. The above-described rolling surface 1a is formed on both sides of the projection 2, and the rolling wheel 30 rolls on the rolling surface 1a so as to straddle the projection 2. At this time, the protrusion 2 plays a role of guiding the position of the wheel 30 so that the wheel 30 does not protrude from the inner peripheral surface of the crawler body 1.

本発明の特徴は、かかる突起２内に当該突起２を支持し補強するための支持部材５を埋設したことであり、この支持部材５は、平板状のベース部６と、このベース部６から立設され、前記抗張体４の埋設方向と平行な壁面７aを有する壁部７とで構成されており、さらに前記ベース部６は前記抗張体４の接地側（地面と接触する、クローラ本体１の外周面側のこと）に配設されている。なお、壁部７は、全体を突起２内に埋設してもよいし、その一部を突起２から露出させるようにしてもよい。 A feature of the present invention is that a support member 5 for supporting and reinforcing the protrusion 2 is embedded in the protrusion 2. The support member 5 includes a flat base portion 6 and a base portion 6. The wall portion 7 is provided upright and has a wall surface 7a parallel to the embedding direction of the tensile body 4, and the base portion 6 is a grounding side of the tensile body 4 (a crawler that contacts the ground). (On the outer peripheral surface side of the main body 1). The wall portion 7 may be entirely embedded in the protrusion 2 or a part thereof may be exposed from the protrusion 2.

支持部材５の材質は、本発明において特に限定されるものではないが、例えば超高分子量ポリエチレン、テフロン（商品名。デュポン社製ポリテトラフルオロエチレン）等の合成樹脂や、鉄、アルミニウム等の金属で作製することができる。これらのうち、強度の点より鉄を用いるのが好ましい。ベース部６は抗張体４の接地側に配設され、かつ壁部７は、前記抗張体４を構成するコードの間を通り抜けるようにして前記ベース部６に立設されている。すなわち、壁部７はその壁面７aが転輪３０の転動方向と平行になるように配設される。こうして、まず壁部７自体が突起２の横方向の剛性を高めると共に、ベース部６が前記抗張体４と協働して前記支持部材５の一種のアンカーとしての役割を果たすことで突起２の横方向の剛性をさらに高めている。その結果、突起２に転輪３０からの荷重、とりわけ横方向加重が作用しても、突起２が横ズレしたり変形したりするのが抑制され、転輪３０の脱輪を確実に防止することができる。本実施の形態では、さらに、前記補強層８と抗張体４とによって支持部材５のベース部６が挟持されている。その結果、支持部材５が抗張体４及び補強層８と共に作用し、一体となって転輪３０からの荷重に抵抗するので、支持部材５の横ズレや傾きをより効果的に防ぐことができる。 The material of the support member 5 is not particularly limited in the present invention. For example, a synthetic resin such as ultrahigh molecular weight polyethylene and Teflon (trade name: polytetrafluoroethylene manufactured by DuPont), or a metal such as iron or aluminum. Can be produced. Among these, it is preferable to use iron from the viewpoint of strength. The base portion 6 is disposed on the ground side of the tensile body 4, and the wall portion 7 is erected on the base portion 6 so as to pass between the cords constituting the tensile body 4. That is, the wall portion 7 is disposed so that the wall surface 7 a thereof is parallel to the rolling direction of the wheel 30. Thus, first, the wall portion 7 itself increases the lateral rigidity of the protrusion 2, and the base portion 6 cooperates with the tensile body 4 to play a role as a kind of anchor of the support member 5. The lateral rigidity of the is further increased. As a result, even when a load from the wheel 30, particularly a lateral load, acts on the protrusion 2, the protrusion 2 is suppressed from being laterally displaced or deformed, and the wheel 30 can be reliably prevented from being removed. be able to. In the present embodiment, the base portion 6 of the support member 5 is further sandwiched between the reinforcing layer 8 and the tensile body 4. As a result, the support member 5 works together with the tensile body 4 and the reinforcing layer 8 and integrally resists the load from the wheel 30, so that the lateral displacement and inclination of the support member 5 can be more effectively prevented. it can.

図５は、第１の実施の形態における支持部材５の一例を示している。図５に示される例では、ベース部６は略矩形状を呈しており、このベース部６上に、略台形状の板材からなる一対の壁体が対向して立設されている。この一対の壁体は円柱体からなる２本の補強部材９により互いに連結されている。この補強部材９は、例えば接着剤により前記壁体に固定することができるが、固定の確実性の点からはボルト等を用いて機械的に固定するのが好ましい。前記補強部材９はベース部６及び壁部７と同様の材料で作製するができる。この例では、ベース部６の上方であって前記補強部材９の下方に抗張体４が位置するように支持部材５がクローラ本体１内に配設される。具体的には、まず弾性クローラＣを作製するための型内に抗張体４を構成するコードを配設し、ついでベース部６に壁部７が立設された状態の支持部材５を、前記ベース部６がコードの下方に位置し、かつ壁部７がコードの間を挿通するように配置する。つぎに前記補強部材９で一対の壁体を互いに連結した後に、弾性クローラＣを構成するゴム組成物を前記型内に流し込み、加硫等所定のプロセスを経ることで前記支持部材５が埋設された弾性クローラＣを得ることができる。 FIG. 5 shows an example of the support member 5 according to the first embodiment. In the example shown in FIG. 5, the base portion 6 has a substantially rectangular shape, and a pair of wall bodies made of a substantially trapezoidal plate material are erected on the base portion 6 so as to face each other. The pair of wall bodies are connected to each other by two reinforcing members 9 made of a cylindrical body. The reinforcing member 9 can be fixed to the wall body by, for example, an adhesive, but is preferably mechanically fixed using a bolt or the like from the viewpoint of fixing reliability. The reinforcing member 9 can be made of the same material as the base portion 6 and the wall portion 7. In this example, the support member 5 is disposed in the crawler body 1 so that the tensile body 4 is located above the base portion 6 and below the reinforcing member 9. Specifically, first, a cord constituting the tensile body 4 is arranged in a mold for producing the elastic crawler C, and then the support member 5 in a state where the wall portion 7 is erected on the base portion 6, The base portion 6 is positioned below the cord, and the wall portion 7 is disposed so as to pass between the cords. Next, after the pair of wall bodies are connected to each other by the reinforcing member 9, the rubber composition constituting the elastic crawler C is poured into the mold, and the support member 5 is embedded by passing through a predetermined process such as vulcanization. An elastic crawler C can be obtained.

この例では一対の壁体が補強部材９により互いに連結されているので、壁体の厚さを小さくして、抗張体４を構成しているコードをバランス良く配置して抗張体４の強度を確保することができると共に、支持部材５の横方向の剛性を高めることができる。 In this example, since the pair of wall bodies are connected to each other by the reinforcing member 9, the thickness of the wall body is reduced, and the cords constituting the tensile body 4 are arranged in a well-balanced manner. The strength can be ensured and the rigidity of the support member 5 in the lateral direction can be increased.

図６は第１の実施の形態における支持部材の他の例を示している。この例では、一対の壁体間であって抗張体４の上方に挟持部材１０が配設されている。挟持部材１０は略矩形状の板部材からなっており、この挟持部材１０とベース部６とで抗張体４が挟持される。このため、支持部材５に作用する荷重をより確実に抗張体４で受けることができ、支持部材５の横方向の剛性をさらに高めることができる。なお、挟持部材１０も前記ベース部６及び壁部７と同様の材料で作製することができる。 FIG. 6 shows another example of the support member in the first embodiment. In this example, the clamping member 10 is disposed between the pair of wall bodies and above the tensile body 4. The sandwiching member 10 is made of a substantially rectangular plate member, and the tension member 4 is sandwiched between the sandwiching member 10 and the base portion 6. For this reason, the load acting on the support member 5 can be more reliably received by the tensile body 4, and the lateral rigidity of the support member 5 can be further increased. Note that the clamping member 10 can also be made of the same material as the base portion 6 and the wall portion 7.

図７は第１の実施の形態における支持部材のさらに他の例を示している。この例では、壁部７が１枚の板材からなっており、この壁部７がベース部６に立設されており、支持部材全体として逆T形状を呈している。また、壁部７に穿設された孔に円柱体からなる補強部材９が挿通されており、この補強部材９とベース部６により抗張体４が挟持される構成となっている。したがって、図６に示される例と同様に、支持部材５に作用する荷重をより確実に抗張体４で受けることができ、支持部材５の横方向の剛性をさらに高めることができる。 FIG. 7 shows still another example of the support member in the first embodiment. In this example, the wall part 7 consists of one board | plate material, this wall part 7 is standingly arranged in the base part 6, and the reverse T shape is exhibited as the whole support member. Further, a reinforcing member 9 made of a cylindrical body is inserted into a hole drilled in the wall portion 7, and the tensile body 4 is sandwiched between the reinforcing member 9 and the base portion 6. Therefore, similarly to the example shown in FIG. 6, the load acting on the support member 5 can be more reliably received by the tensile body 4, and the lateral rigidity of the support member 5 can be further increased.

図８は第１の実施の形態における支持部材の他の例を示している。この例では、図６に示される例と異なり、略矩形状の板部材からなる補強部材９が、立った状態で一対の壁体間に配設されている。すなわち、板部材の側面（図７に示される例では短辺側の側面）が抗張体４の上方に位置し、この側面とベース部６とにより抗張体４が挟持されるように、補強部材９が配置されている。補強部材９はその上面９aが壁部７の上面７aと面一になるように、そのサイズが選定されているが、これに限定されるものではない。壁部７は補強部材９により連結されており、かつ抗張体４がベース部６と補強部材９とで挟持されているので、支持部材５の横方向の剛性は、図６に示される例よりもさらに高められる。この例における補強部材９は、挟持部材としての役割も果たしている。 FIG. 8 shows another example of the support member in the first embodiment. In this example, unlike the example shown in FIG. 6, the reinforcing member 9 made of a substantially rectangular plate member is disposed between the pair of wall bodies in a standing state. That is, the side surface of the plate member (the side surface on the short side in the example shown in FIG. 7) is positioned above the tensile body 4, and the tensile body 4 is sandwiched between the side surface and the base portion 6. A reinforcing member 9 is arranged. The size of the reinforcing member 9 is selected so that the upper surface 9a thereof is flush with the upper surface 7a of the wall portion 7. However, the present invention is not limited to this. Since the wall portion 7 is connected by the reinforcing member 9 and the tensile body 4 is sandwiched between the base portion 6 and the reinforcing member 9, the lateral rigidity of the supporting member 5 is an example shown in FIG. Even higher than. The reinforcing member 9 in this example also plays a role as a clamping member.

図９は第１の実施の形態における支持部材のさらに他の例を示している。この例は、図5〜８に示される例と異なり、左右対称の一対の部材により支持部材５が構成されている。図9に示される例は、その断面が逆F形の部材が用いられているが、例えばL形やT形等他の形状のものを用いることもできる。図9に示される例では、ベース部６と、このベース部６と略平行に壁部７から突設された挟持部材１０とによって抗張体４が挟持される。したがって、支持部材５の横方向の剛性を高めることができる。 FIG. 9 shows still another example of the support member in the first embodiment. In this example, unlike the examples shown in FIGS. 5 to 8, the support member 5 is configured by a pair of symmetrical members. In the example shown in FIG. 9, a member having an inverted F-shaped cross section is used, but other shapes such as an L shape and a T shape can also be used. In the example shown in FIG. 9, the tensile body 4 is clamped by the base portion 6 and a clamping member 10 protruding from the wall portion 7 substantially parallel to the base portion 6. Therefore, the lateral rigidity of the support member 5 can be increased.

前述した支持部材５の例において、ベース部６及び壁部７の厚さは、特に限定されるものではなく、使用される材料や、弾性クローラＣが適用されるクローラ走行装置の規模等に応じて適宜選定することができるが、通常２〜１０ｍｍ程度である。また、ベース部６及び壁部７の形状も、図示したもの以外に、円形、多角形等適宜の形状を採用することができる。このことは、補強部材９や挟持部材１０についても同様であり、例えば補強部材９として角柱状のものや円筒体を採用することもできる。 In the example of the support member 5 described above, the thickness of the base portion 6 and the wall portion 7 is not particularly limited, and depends on the material used, the scale of the crawler traveling device to which the elastic crawler C is applied, and the like. However, it is usually about 2 to 10 mm. In addition to the illustrated shapes, the base portion 6 and the wall portion 7 can also adopt appropriate shapes such as a circle and a polygon. The same applies to the reinforcing member 9 and the sandwiching member 10. For example, a prismatic member or a cylindrical body can be adopted as the reinforcing member 9.

次に図１０〜１７に基づいて本発明の第２の実施の形態を説明する。
図１０は本発明の第２の実施の形態に係る弾性クローラCを内周面側から見た部分平面図であり、また図１１はこの弾性クローラＣを外周面側から見た部分平面図である。本実施の形態では、クローラ本体１の幅方向の両側部において、当該クローラ本体１の内周面の周方向に沿って弾性体からなる複数の膨出部２０が設けられており、この膨出部２０内に当該膨出部２０を支持する支持部材５が埋設されている。クローラ本体１及びラグ３の構成は第１の実施の形態と同様であり、また突起２の構成についても、支持部材５がその内部に埋設されていない点を除いて第１の実施の形態と同様であるので、それらの説明は省略する。 Next, a second embodiment of the present invention will be described with reference to FIGS.
FIG. 10 is a partial plan view of the elastic crawler C according to the second embodiment of the present invention viewed from the inner peripheral surface side, and FIG. 11 is a partial plan view of the elastic crawler C viewed from the outer peripheral surface side. is there. In the present embodiment, a plurality of bulging portions 20 made of an elastic body are provided along the circumferential direction of the inner peripheral surface of the crawler main body 1 on both sides in the width direction of the crawler main body 1. A support member 5 that supports the bulging portion 20 is embedded in the portion 20. The configuration of the crawler body 1 and the lug 3 is the same as that of the first embodiment, and the configuration of the protrusion 2 is the same as that of the first embodiment except that the support member 5 is not embedded therein. Since they are the same, their description is omitted.

第２の実施の形態における支持部材５も、平板状のベース部６と、このベース部６から立設され、抗張体４の埋設方向と平行な壁面７aを有する壁部７とで構成されており、かつ、前記ベース部６は前記抗張体４の接地側に配設されている。 The support member 5 in the second embodiment is also composed of a flat base portion 6 and a wall portion 7 standing from the base portion 6 and having a wall surface 7a parallel to the direction in which the tensile body 4 is embedded. In addition, the base portion 6 is disposed on the grounding side of the tensile body 4.

本実施の形態は、転輪３０の横ズレ（クローラ本体１の幅方向のズレ）を、主としてクローラ本体１の幅方向の両側部に突設した膨出部２０により防止するものであり、この目的のため前記膨出部２０の横方向の剛性を支持部材５により高めている。本実施の形態においても、第１の実施の形態と同様に、ベース部６は抗張体４の接地側に配設され、かつ壁部７は、前記抗張体４を構成するコードの間を通り抜けるようにして前記ベース部６に立設されている。したがって、壁部７自体が突起２の横方向の剛性を高めると共に、ベース部６が前記抗張体４と協働して前記支持部材５の一種のアンカーとしての役割を果たすことで膨出部２０の横方向の剛性をさらに高めている。その結果、膨出部２０に転輪３０からの荷重、とりわけ横方向加重が作用しても、膨出部２０が横ズレしたり変形したりするのが抑制され、転輪３０の脱輪を確実に防止することができる。 In the present embodiment, the lateral displacement of the wheel 30 (the displacement in the width direction of the crawler body 1) is mainly prevented by the bulging portions 20 that protrude from both sides of the crawler body 1 in the width direction. For the purpose, the support member 5 increases the lateral rigidity of the bulging portion 20. Also in the present embodiment, as in the first embodiment, the base portion 6 is disposed on the ground side of the tensile body 4, and the wall portion 7 is between the cords constituting the tensile body 4. It is erected on the base portion 6 so as to pass through. Therefore, the wall portion 7 itself increases the lateral rigidity of the protrusion 2 and the base portion 6 cooperates with the tensile body 4 to play a role as a kind of anchor of the support member 5 so that the bulging portion The lateral rigidity of 20 is further increased. As a result, even if a load from the wheel 30, particularly a lateral load, acts on the bulging portion 20, the bulging portion 20 is restrained from being displaced or deformed, and the wheel 30 can be removed. It can be surely prevented.

図１３〜１７は第２の実施の形態における支持部材の例をそれぞれ示している。
図１３に示される例は、図１０〜１２において用いられている支持部材５の斜視説明図であり、この支持部材５は、略矩形状のベース部６と、このベース部６の一縁部に立設された壁部７と、この壁部７に対向して前記ベース部６に立設された補助壁２１とで構成されている。補助壁２１の高さは壁部７の高さよりも低くされている。この補助壁２１は、クローラ本体１の両側部において当該クローラ本体１の側縁側に位置するように、クローラ本体１内に埋設されるが、その際この補助壁２１上方の膨出部２０を、例えば図１２においてBで示される線に沿って切断することもできる。切断することで、クローラ本体１の両側縁側における膨出部２０にテーパをつけて、膨出部の剛性を低下させることなく、コストを下げることができる。なお、この補助壁２１と、壁体との間を前記補強部材９で連結することもできる。また、補助壁は、２以上立設してもよく、この場合に複数の補助壁の高さを変えることもできる。 FIGS. 13-17 has shown the example of the supporting member in 2nd Embodiment, respectively.
The example shown in FIG. 13 is a perspective explanatory view of the support member 5 used in FIGS. 10 to 12, and this support member 5 includes a substantially rectangular base portion 6 and one edge portion of the base portion 6. The wall portion 7 is erected on the base portion 6 and the auxiliary wall 21 is erected on the base portion 6 so as to face the wall portion 7. The height of the auxiliary wall 21 is set lower than the height of the wall portion 7. The auxiliary wall 21 is embedded in the crawler main body 1 so as to be positioned on the side edge side of the crawler main body 1 on both sides of the crawler main body 1. For example, it can be cut along a line indicated by B in FIG. By cutting, the bulging portion 20 on both side edges of the crawler body 1 is tapered, and the cost can be reduced without reducing the rigidity of the bulging portion. The auxiliary wall 21 and the wall body can be connected by the reinforcing member 9. Further, two or more auxiliary walls may be erected, and in this case, the height of the plurality of auxiliary walls can be changed.

図１４に示される例は、壁部７を構成する一対の壁体のうちの一方だけが、ベース部６の中央寄りに立設されている点を除き、図５に示される例と同じ構成である。一対の壁体のうちの一方をベース部６の縁部に沿って立設しているのは、転輪通過面下にベース部６が来ないようにするためであるが、両方の壁体を前記縁部に沿って立設してもよいし、また逆に両方の壁体をベース部６の中央寄りに立設してもよい。この例でも、一対の壁体が補強部材９により互いに連結されているので、支持部材５の横方向の剛性をさらに高めることができる。 The example shown in FIG. 14 has the same configuration as the example shown in FIG. 5 except that only one of the pair of walls constituting the wall portion 7 is erected near the center of the base portion 6. It is. The reason why one of the pair of wall bodies is erected along the edge of the base portion 6 is to prevent the base portion 6 from coming below the wheel passing surface. May be erected along the edge portion, or conversely, both wall bodies may be erected near the center of the base portion 6. Also in this example, since the pair of wall bodies are connected to each other by the reinforcing member 9, the lateral rigidity of the support member 5 can be further increased.

図１５に示される例も、壁部７を構成する一対の壁体のうちの一方だけが、ベース部６の中央寄りに立設されている点を除き、図６に示される例と同じ構成である。この例でも、挟持部材１０とベース部６とで抗張体４が挟持されるため、支持部材５に作用する荷重をより確実に抗張体４で受けることができ、支持部材５の横方向の剛性をさらに高めることができる。 The example shown in FIG. 15 is the same as the example shown in FIG. 6 except that only one of the pair of wall bodies constituting the wall portion 7 is erected near the center of the base portion 6. It is. Also in this example, since the tension body 4 is clamped by the clamping member 10 and the base portion 6, the load acting on the support member 5 can be more reliably received by the tension body 4. The rigidity of can be further increased.

図１６に示される例は、断面がL形である点を除き図７に示される例と同じ構成であり、壁部７に穿設された孔に円柱体からなる補強部材９が挿通されており、この補強部材９とベース部６により抗張体４が挟持される構成となっている。したがって、支持部材５に作用する荷重をより確実に抗張体４で受けることができ、支持部材５の横方向の剛性をさらに高めることができる。 The example shown in FIG. 16 has the same configuration as the example shown in FIG. 7 except that the cross section is L-shaped, and a reinforcing member 9 made of a cylindrical body is inserted into the hole drilled in the wall portion 7. The tensile member 4 is sandwiched between the reinforcing member 9 and the base portion 6. Therefore, the load acting on the support member 5 can be more reliably received by the tensile body 4, and the lateral rigidity of the support member 5 can be further increased.

図１７に示される例は、壁部７を構成する一対の壁体のうちの一方だけが、ベース部６の中央寄りに立設されている点を除き、図８に示される例と同じ構成である。壁部７は補強部材９により連結されており、かつ抗張体４がベース部６と補強部材９とで挟持されているので、支持部材５の横方向の剛性は、図１５に示される例よりもさらに高められる。この例における補強部材９は、挟持部材としての役割も果たしている。 The example shown in FIG. 17 has the same configuration as the example shown in FIG. 8 except that only one of the pair of walls constituting the wall portion 7 is erected near the center of the base portion 6. It is. Since the wall portion 7 is connected by the reinforcing member 9 and the tensile body 4 is sandwiched between the base portion 6 and the reinforcing member 9, the lateral rigidity of the supporting member 5 is an example shown in FIG. Even higher than. The reinforcing member 9 in this example also plays a role as a clamping member.

なお、図１４、１５及び１７に示される例において、一対の壁体のうち一方の壁体（ベース部６の中央寄りに立設されている壁体）の高さを他方の壁体よりも低くして、前述したような補助壁２１として構成することもできる。この補助壁２１も、クローラ本体１の両側部において当該クローラ本体１の側縁側に位置するように、クローラ本体１内に埋設される。 In the example shown in FIGS. 14, 15, and 17, the height of one of the pair of wall bodies (the wall body standing near the center of the base portion 6) is set higher than that of the other wall body. The auxiliary wall 21 can also be configured as described above. The auxiliary wall 21 is also embedded in the crawler body 1 so as to be positioned on the side edge side of the crawler body 1 on both sides of the crawler body 1.

次に図１８〜２４に基づいて本発明の第３の実施の形態を説明する。
図１８は本発明の第３の実施の形態に係る弾性クローラCを内周面側から見た部分平面図であり、また図１９はこの弾性クローラＣを外周面側から見た部分平面図である。本実施の形態では、クローラ本体１の幅方向の両側部において当該両側部を支持する支持部材５が埋設されている。また、抗張体４は、クローラ本体１の中央付近だけでなく、前記支持部材５が埋設されているクローラ本体１の幅方向の両側部にも埋設されている。クローラ本体１及びラグ３の構成は第１の実施の形態と同様であり、また突起２の構成についても、支持部材５がその内部に埋設されていない点を除いて第１の実施の形態と同様であるので、それらの説明は省略する。 Next, a third embodiment of the present invention will be described with reference to FIGS.
FIG. 18 is a partial plan view of the elastic crawler C according to the third embodiment of the present invention as viewed from the inner peripheral surface side, and FIG. 19 is a partial plan view of the elastic crawler C as viewed from the outer peripheral surface side. is there. In the present embodiment, support members 5 that support both sides of the crawler body 1 in the width direction are embedded. The tensile body 4 is embedded not only in the vicinity of the center of the crawler main body 1 but also on both sides in the width direction of the crawler main body 1 in which the support member 5 is embedded. The configuration of the crawler body 1 and the lug 3 is the same as that of the first embodiment, and the configuration of the protrusion 2 is the same as that of the first embodiment except that the support member 5 is not embedded therein. Since they are the same, their description is omitted.

第３の実施の形態における支持部材５も、平板状のベース部６と、このベース部６から立設され、抗張体４の埋設方向と平行な壁面７aを有する壁部７とで構成されており、かつ、前記ベース部６は前記抗張体４の接地側に配設されている。
本実施の形態は、転輪３０の横ズレ（クローラ本体１の幅方向のズレ）を、主としてクローラ本体１の幅方向の両側部に埋設した支持部材５の壁部７により防止するものである。本実施の形態においても、第１の実施の形態と同様に、ベース部６は抗張体４の接地側に配設され、かつ壁部７は、前記抗張体４を構成するコードの間を通り抜けるようにして前記ベース部６に立設されている。したがって、ベース部６が前記抗張体４と協働して前記支持部材５の一種のアンカーとしての役割を果たすことで支持部材５の横方向の剛性を高めている。その結果、支持部材５に転輪３０からの荷重、とりわけ横方向加重が作用しても、支持部材５が横ズレするのが抑制され、転輪３０の脱輪を確実に防止することができる。 The support member 5 in the third embodiment is also composed of a flat base portion 6 and a wall portion 7 standing from the base portion 6 and having a wall surface 7a parallel to the direction in which the tensile body 4 is embedded. In addition, the base portion 6 is disposed on the grounding side of the tensile body 4.
In the present embodiment, lateral displacement of the wheel 30 (deviation in the width direction of the crawler main body 1) is mainly prevented by the wall portions 7 of the support member 5 embedded in both side portions of the crawler main body 1 in the width direction. . Also in the present embodiment, as in the first embodiment, the base portion 6 is disposed on the ground side of the tensile body 4, and the wall portion 7 is between the cords constituting the tensile body 4. It is erected on the base portion 6 so as to pass through. Therefore, the base portion 6 cooperates with the tensile body 4 to play a role as a kind of anchor of the support member 5, thereby increasing the lateral rigidity of the support member 5. As a result, even when a load from the wheel 30, particularly a lateral load, acts on the support member 5, the support member 5 is suppressed from being displaced laterally, and the wheel 30 can be prevented from being removed. .

図２１〜２４は第３の実施の形態における支持部材の例をそれぞれ示している。
図２１は、図１８〜２０に示されている支持部材５の斜視説明図であり、この支持部材５は、略矩形状の板部材からなるベース部６と、このベース部６の長辺の一辺側から立設している壁部７とからなっている。壁部７は、前記長辺の一辺と接続されている中央部と、この中央部の両側に形成された折曲げ部とで構成されている。支持部材５は、クローラ本体１の両側部において、前記壁部７がクローラ本体１の幅方向中央部に対して凸形状（平面において。図１８参照）を呈するように埋設される。このように、壁部７の両側がクローラ本体１の縁部を向くように折り曲げられているので、転輪３０が壁部７の縁に引っかかるのを防ぐことができる。その結果、転輪３０のガイドをスムーズに行うと共に、支持部材５の破損を防止することができる。 21 to 24 show examples of support members in the third embodiment, respectively.
FIG. 21 is a perspective explanatory view of the support member 5 shown in FIGS. 18 to 20. The support member 5 includes a base portion 6 made of a substantially rectangular plate member and the long side of the base portion 6. It consists of a wall portion 7 erected from one side. The wall part 7 is comprised by the center part connected to one side of the said long side, and the bending part formed in the both sides of this center part. The support member 5 is embedded on both sides of the crawler main body 1 such that the wall portion 7 has a convex shape (in a plan view, see FIG. 18) with respect to the central portion in the width direction of the crawler main body 1. Thus, since both sides of the wall portion 7 are bent so as to face the edge portion of the crawler main body 1, the rolling wheel 30 can be prevented from being caught by the edge of the wall portion 7. As a result, the rolling wheel 30 can be guided smoothly and the support member 5 can be prevented from being damaged.

図２２に示される例は、略矩形状の板部材からなるベース部６と、このベース部６の長辺の一辺側から立設している壁部７と、前記ベース部６の上方において、当該ベース部６と平行になるように前記壁部７から突設された挟持部材１０とからなっており、その断面は略逆F形を呈している。この例でも、前述した図６等に示される例と同様に、挟持部材１０とベース部６とで抗張体４が挟持されるため、支持部材５に作用する荷重をより確実に抗張体４で受けることができ、支持部材５の横方向の剛性を高めることができる。 In the example shown in FIG. 22, a base portion 6 made of a substantially rectangular plate member, a wall portion 7 standing from one side of the long side of the base portion 6, and above the base portion 6, It comprises a clamping member 10 projecting from the wall portion 7 so as to be parallel to the base portion 6, and its cross section has a substantially inverted F shape. Also in this example, since the tensile body 4 is clamped by the clamping member 10 and the base portion 6 as in the example shown in FIG. 6 and the like described above, the load acting on the support member 5 can be more reliably applied. 4 and the lateral rigidity of the support member 5 can be increased.

図２３は、図２２に示される例の変形例を示しており、挟持部材１０より上の壁部７に補強用のリブ２２が形成されている。このリブにより支持部材５の剛性が高められ、当該支持部材５の耐久性が向上する。リブ２２の数は２本以上であってもよい。 FIG. 23 shows a modification of the example shown in FIG. 22, and reinforcing ribs 22 are formed on the wall portion 7 above the clamping member 10. The ribs increase the rigidity of the support member 5 and improve the durability of the support member 5. The number of ribs 22 may be two or more.

図２４は、第３の実施の形態における支持部材の他の例の斜視説明図を示しており、この例は、略矩形状の板部材からなるベース部６を備えている点において前述した例と同じであるが、壁部７の構成が異なっている。すなわち、前述した例では、壁部７が板部材だけで形成されていたが、図２４に示される例では、壁部７が板部材２３と円筒体２４とで構成されている。板部材２３は、ベース部６の一辺から立設されており、この板部材２３の上面が前記円筒体２４に接続されている。この支持部材５は、前記板部材２３がクローラ本体１の幅方向中央部を向くように当該クローラ本体１の両側部に埋設される。そして、円筒体の側面が転輪３０と接触することになるので、支持部材５に転輪３０が引っかかることがなく、転輪３０をスムーズにガイドすることができると共に、支持部材５の破損を防ぐことができる。なお、ベース部６と壁部７は、別体で作製し両者を固着させてもよいし、また一体に作製してもよい。
また、例示はしていないが、第３の実施の形態において、図１３〜１７に示した支持部材５を用いることもできる。 FIG. 24 is a perspective explanatory view of another example of the supporting member in the third embodiment, and this example is the example described above in that it includes a base portion 6 made of a substantially rectangular plate member. However, the configuration of the wall 7 is different. That is, in the example described above, the wall portion 7 is formed by only the plate member, but in the example shown in FIG. 24, the wall portion 7 is configured by the plate member 23 and the cylindrical body 24. The plate member 23 is erected from one side of the base portion 6, and the upper surface of the plate member 23 is connected to the cylindrical body 24. The support member 5 is embedded in both side portions of the crawler body 1 so that the plate member 23 faces the central portion in the width direction of the crawler body 1. Since the side surface of the cylindrical body comes into contact with the wheel 30, the wheel 30 is not caught by the support member 5, the wheel 30 can be smoothly guided, and the support member 5 can be damaged. Can be prevented. In addition, the base part 6 and the wall part 7 may be produced separately and may be fixed together, or may be produced integrally.
Moreover, although not illustrated, in 3rd Embodiment, the supporting member 5 shown to FIGS. 13-17 can also be used.

以上説明したように、本発明の弾性クローラＣは、現在使われているクローラ構造に支持部材を埋設しているので、現状のモールドや製造設備を用いて実施することができるというメリットもある。 As described above, the elastic crawler C of the present invention has a merit that it can be implemented using the current mold and manufacturing equipment because the support member is embedded in the crawler structure currently used.

なお、第２〜３の実施の形態において、クローラ本体１の中央部に形成された突起２に、第１の実施の形態と同様の支持部材５を埋設することもできる。こうすることで、転輪３０のガイドがより確実になされ、転輪３０の脱輪をさらに効果的に防止することができる。 In the second to third embodiments, a support member 5 similar to that of the first embodiment can be embedded in the protrusion 2 formed in the central portion of the crawler body 1. By doing so, the wheel 30 can be guided more reliably, and the wheel 30 can be prevented from coming off more effectively.

また、第１〜３の実施の形態に関連して説明した支持部材５の例において、ベース部６、壁部７及び補助壁の厚さは、特に限定されるものではなく、使用される材料や、弾性クローラＣが適用されるクローラ走行装置の規模等に応じて適宜選定することができるが、通常２〜１０ｍｍ程度である。また、ベース部６、壁部７及び補助壁の形状も、図示したもの以外に、円形、多角形等適宜の形状を採用することができる。このことは、補強部材９や挟持部材１０についても同様であり、例えば補強部材９として角柱状のものや円筒体を採用することもできる。 Moreover, in the example of the support member 5 described in relation to the first to third embodiments, the thickness of the base portion 6, the wall portion 7, and the auxiliary wall is not particularly limited, and the material used Or, it can be appropriately selected according to the scale of the crawler traveling device to which the elastic crawler C is applied, but is usually about 2 to 10 mm. In addition to the illustrated shapes, the base portion 6, the wall portion 7, and the auxiliary wall can be formed in an appropriate shape such as a circle or a polygon. The same applies to the reinforcing member 9 and the sandwiching member 10. For example, a prismatic member or a cylindrical body can be adopted as the reinforcing member 9.

本発明の第１の実施の形態に係る弾性クローラを内周面側から見た部分平面図である。It is the fragmentary top view which looked at the elastic crawler concerning the 1st Embodiment of this invention from the inner peripheral surface side. 図１に示される弾性クローラを外周面側から見た部分平面図である。It is the partial top view which looked at the elastic crawler shown by FIG. 1 from the outer peripheral surface side. 図２のA―A線断面図である。FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. 図２のB―B線矢視図である。FIG. 3 is a view taken along line BB in FIG. 2. 第１の実施の形態における支持部材の一例の斜視説明図である。It is a perspective explanatory view of an example of a support member in a 1st embodiment. 第１の実施の形態における支持部材の他の例の斜視説明図である。It is a perspective explanatory view of other examples of a support member in a 1st embodiment. 第１の実施の形態における支持部材のさらに他の例の斜視説明図である。It is a perspective explanatory view of still another example of the support member in the first embodiment. 第１の実施の形態における支持部材の他の例の斜視説明図である。It is a perspective explanatory view of other examples of a support member in a 1st embodiment. 第１の実施の形態における支持部材のさらに他の例の斜視説明図である。It is a perspective explanatory view of still another example of the support member in the first embodiment. 本発明の第２の実施の形態に係る弾性クローラを内周面側から見た部分平面図である。It is the fragmentary top view which looked at the elastic crawler concerning the 2nd Embodiment of this invention from the inner peripheral surface side. 図１０に示される弾性クローラを外周面側から見た部分平面図である。It is the fragmentary top view which looked at the elastic crawler shown by FIG. 10 from the outer peripheral surface side. 図１１のA―A線断面図である。It is the sectional view on the AA line of FIG. 第２の実施の形態における支持部材の一例の斜視説明図である。It is a perspective explanatory view of an example of a support member in a 2nd embodiment. 第２の実施の形態における支持部材の一例の斜視説明図である。It is a perspective explanatory view of an example of a support member in a 2nd embodiment. 第２の実施の形態における支持部材の他の例の斜視説明図である。It is a perspective explanatory view of other examples of a support member in a 2nd embodiment. 第２の実施の形態における支持部材のさらに他の例の斜視説明図である。It is a perspective explanatory view of still another example of the support member in the second embodiment. 第２の実施の形態における支持部材の他の例の斜視説明図である。It is a perspective explanatory view of other examples of a support member in a 2nd embodiment. 本発明の第３の実施の形態に係る弾性クローラを内周面側から見た部分平面図である。It is the fragmentary top view which looked at the elastic crawler concerning the 3rd Embodiment of this invention from the inner peripheral surface side. 図１８に示される弾性クローラを外周面側から見た部分平面図である。It is the fragmentary top view which looked at the elastic crawler shown by FIG. 18 from the outer peripheral surface side. 図１９のA―A線断面図である。FIG. 20 is a cross-sectional view taken along line AA in FIG. 19. 第３の実施の形態における支持部材の一例の斜視説明図である。It is a perspective explanatory view of an example of a support member in a 3rd embodiment. 第３の実施の形態における支持部材の他の例の斜視説明図である。It is a perspective explanatory view of other examples of a support member in a 3rd embodiment. 第３の実施の形態における支持部材のさらに他の例の斜視説明図である。It is a perspective explanatory view of still another example of the support member in the third embodiment. 第３の実施の形態における支持部材の他の例の斜視説明図である。It is a perspective explanatory view of other examples of a support member in a 3rd embodiment.

Explanation of symbols

１クローラ本体
２突起
３ラグ
４抗張体
５支持部材
６ベース部
７壁部
８補強層
９補強部材
１０挟持部材
２０膨出部
２１補助壁
C弾性クローラ 1 Crawler body 2 Protrusion 3 Lug 4 Tensile body 5 Support member 6 Base part 7 Wall part 8 Reinforcement layer 9 Reinforcement member 10 Nipping member 20 Swelling part 21 Auxiliary wall
C elastic crawler

Claims

A crawler body made of a rubber-like elastic body formed in an endless belt shape, and a plurality of protrusions made of an elastic body for driving or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body And a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler main body, and a coreless-less elasticity comprising a cord embedded in the crawler main body along the circumferential direction A crawler,
The protrusion is provided over the entire circumference of the crawler body at the center in the width direction of the crawler body.
The tensile body is embedded in the crawler body including the lower part of the protrusion,
A support member that supports the protrusion is embedded in the protrusion, and the support member has a flat base portion and a wall surface that is erected from the base portion and parallel to the embedded direction of the tensile body. And the base part is disposed on the ground side of the tensile body, and the base part passes through between the cords constituting the tensile body. Is standing
An elastic crawler characterized in that a reinforcing layer is embedded in the crawler main body and on the grounding side of the tensile body, and the base portion is sandwiched between the reinforcing layer and the tensile body.

The elastic crawler according to claim 1, wherein the wall portion of the support member includes a pair of wall bodies arranged to face each other, and includes a reinforcing member that couples the pair of wall bodies to each other.

A crawler body made of a rubber-like elastic body formed in an endless belt shape, and a plurality of protrusions made of an elastic body for driving or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body And a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler main body, and a coreless-less elasticity comprising a cord embedded in the crawler main body along the circumferential direction A crawler,
The tensile body is embedded in the crawler body including the lower part of the protrusion,
A support member that supports the protrusion is embedded in the protrusion, and the support member has a flat base portion and a wall surface that is erected from the base portion and parallel to the embedded direction of the tensile body. And the base part is disposed on the ground side of the tensile body, and the base part passes through between the cords constituting the tensile body. Is standing
A reinforcement layer is embedded in the ground side of the tensile body inside the crawler body, and the base portion is sandwiched between the reinforcement layer and the tensile body,
A clamping member is embedded inside the crawler body on the opposite side of the base portion of the support member with the tensile body interposed therebetween, and the tensile body is sandwiched between the clamping member and the base portion. An elastic crawler characterized by

A crawler body made of a rubber-like elastic body formed in an endless belt shape, and a plurality of protrusions made of an elastic body for driving or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body And a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler main body, and a coreless-less elasticity comprising a cord embedded in the crawler main body along the circumferential direction A crawler,
On both sides in the width direction of the crawler body, a plurality of bulging portions made of an elastic body are provided along the circumferential direction of the inner peripheral surface of the crawler body,
The tensile body is embedded in the crawler body including the lower part of the bulging portion,
A support member for supporting the bulging portion is embedded in the bulging portion. The supporting member is provided with a flat plate-like base portion, and is erected from the base portion, and is parallel to the burying direction of the tensile body. A wall portion having a wall surface, the base portion is disposed on the grounding side of the tensile body, and the wall portion passes between the cords constituting the tensile body. It is erected on the base part,
An elastic crawler characterized in that a reinforcing layer is embedded in the crawler main body and on the grounding side of the tensile body, and the base portion is sandwiched between the reinforcing layer and the tensile body.

The elastic crawler according to claim 4, wherein an auxiliary wall is erected on the base portion of the support member so as to face the wall portion.

The elastic crawler according to claim 5, further comprising a reinforcing member that connects the wall portion and the auxiliary wall to each other.

A clamping member is embedded inside the crawler body on the opposite side of the base portion of the support member with the tensile body interposed therebetween, and the tensile body is sandwiched between the clamping member and the base portion. The elastic crawler according to any one of claims 4 to 6.

A crawler body made of a rubber-like elastic body formed in an endless belt shape, and a plurality of protrusions made of an elastic body for driving or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body And a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler main body, and a coreless-less elasticity comprising a cord embedded in the crawler main body along the circumferential direction A crawler,
The tensile body is embedded in the interior of the crawler body including the lower side of both sides in the width direction of the crawler body,
Support members for supporting the both side portions are embedded in each of both side portions in the width direction of the crawler body, and each support member is erected from a flat base portion and the base portion. A wall portion having a wall surface parallel to the embedding direction, the base portion is disposed on the grounding side of the tensile body, and the wall portion is a cord constituting the tensile body Is erected on the base so as to pass between
An elastic crawler characterized in that a reinforcing layer is embedded in the crawler main body and on the grounding side of the tensile body, and the base portion is sandwiched between the reinforcing layer and the tensile body.

The elastic crawler according to claim 8, wherein an auxiliary wall is erected on the base portion of the support member so as to face the wall portion.

The elastic crawler according to claim 9, further comprising a reinforcing member that connects the wall portion and the auxiliary wall to each other.

A crawler body made of a rubber-like elastic body formed in an endless belt shape, and a plurality of protrusions made of an elastic body for driving or guide provided at a constant pitch along the circumferential direction of the inner peripheral surface of the crawler body And a plurality of lugs formed in a predetermined pattern on the outer peripheral surface of the crawler main body, and a coreless-less elasticity comprising a cord embedded in the crawler main body along the circumferential direction A crawler,
The tensile body is embedded in the interior of the crawler body including the lower part of both sides in the width direction of the crawler body,
Support members for supporting the two side portions are embedded in both side portions in the width direction of the crawler body, and the support member is provided with a flat plate-like base portion and the base portion so as to be embedded in the tensile body. A wall portion having a wall surface parallel to the direction, the base portion is disposed on the grounding side of the tensile body, and the wall portion is between cords constituting the tensile body. Is erected on the base so as to pass through
A reinforcement layer is embedded in the ground side of the tensile body inside the crawler body, and the base portion is sandwiched between the reinforcement layer and the tensile body,
A clamping member is embedded inside the crawler body on the opposite side of the base portion of the support member with the tensile body interposed therebetween, and the tensile body is sandwiched between the clamping member and the base portion. An elastic crawler characterized by

A support member that supports the protrusion is embedded in the protrusion, and the support member has a flat base portion and a wall surface that is erected from the base portion and parallel to the embedded direction of the tensile body. The elastic crawler according to claim 4, further comprising a wall portion, and the base portion being disposed on a grounding side of the tensile body.