JP2016068937A - Duo crawler for wet paddy with improved in mud extraction performance - Google Patents
Duo crawler for wet paddy with improved in mud extraction performance Download PDFInfo
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- JP2016068937A JP2016068937A JP2015168020A JP2015168020A JP2016068937A JP 2016068937 A JP2016068937 A JP 2016068937A JP 2015168020 A JP2015168020 A JP 2015168020A JP 2015168020 A JP2015168020 A JP 2015168020A JP 2016068937 A JP2016068937 A JP 2016068937A
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- 238000000605 extraction Methods 0.000 title abstract 5
- 238000004140 cleaning Methods 0.000 claims abstract description 8
- 239000002689 soil Substances 0.000 claims description 29
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000009751 slip forming Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000005728 strengthening Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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Abstract
Description
本発明は、無限駆動車の移送手段として使用されるクローラ（Ｃｒａｗｌｅｒ）の培土効率を向上させ、湿田においても円滑な走行性を確保しつつ接地力が強化され、走行時の推進力を画期的に増大させる新概念の技術に関するものである。 The present invention improves the soil cultivation efficiency of a crawler used as a transfer means for an infinitely driven vehicle, enhances the ground contact force while ensuring smooth running performance even in a wetland field, and makes the driving force during driving breakthrough It is about the technology of the new concept which increases in number.
クローラを利用した走行装置は農業機械、建設機械等に広く利用されている。そして、ゴムクローラはゴム弾性材によって無端形状に形成されており、このようなゴムクローラ走行装置が装着される車両に巻取られ、回転走行するものである。 A traveling device using a crawler is widely used in agricultural machinery, construction machinery, and the like. The rubber crawler is formed in an endless shape by a rubber elastic material, and is wound around a vehicle on which such a rubber crawler traveling device is mounted and rotates.
前記ゴムクローラを具備したゴムクローラ走行装置は、現在、コンバイン等の農業機械、バックホー（ＢＡＣＫＨＯＥ）等の建設作業機械等に幅広く利用されている。 The rubber crawler travel device provided with the rubber crawler is currently widely used in agricultural machines such as a combine machine, construction work machines such as a backhoe.
このような従来の一般的なクローラはゴム材を用いて無端状に形成されており、両側の駆動スプロケットとアイドラーの間にかかるように装着されて、前記駆動スプロケットの回転力により回転することで進行力を持つようになる。 Such a conventional general crawler is formed endlessly using a rubber material, is mounted so as to be placed between the drive sprocket and the idler on both sides, and is rotated by the rotational force of the drive sprocket. Have progress.
前記駆動スプロケットは、クローラの中央に一定の間隔で連続的に形成されたスプロケットの溝にかかるようになり、このときゴム材であるクローラは、スプロケット溝の間に金属材である芯金を埋設して円滑な駆動を確保し、前記芯金に形成されたガイド突起の外側にはガイドローラーが装着され、クローラ駆動時に駆動スプロケット及びアイドラーからクローラが離脱することを防ぐ構造を持つ。 The drive sprocket is placed in a sprocket groove continuously formed at a constant interval in the center of the crawler. At this time, the crawler, which is a rubber material, embeds a metal core, which is a metal material, between the sprocket grooves. Thus, a smooth drive is ensured, and a guide roller is mounted on the outside of the guide projection formed on the metal core, and the crawler is prevented from being detached from the drive sprocket and idler when the crawler is driven.
このようなクローラに関する先行技術としては、本発明出願人の先出願発明である 特許文献１が挙げられる。
As a prior art related to such a crawler,
前記先行技術は、クローラに形成されるラグとラグの間にもう一つのラグを追加してクローラの傾きを防止しつつ培土効率を向上させ、効果的な推進力の確保を図り、左右のバランスが良好なラグパターンとして形成することでクローラの損傷を防止し、クローラの寿命を画期的に延ばすことを技術的な特徴とする。 The above prior art adds another lug between the lugs formed on the crawler to improve soil cultivation efficiency while preventing the crawler from tilting, ensuring effective propulsion, and balancing the left and right Is a technical feature of preventing the crawler from being damaged and dramatically extending the life of the crawler.
しかし、前記先行技術は、クローラ本体の幅全体にわたって、長ラグが突出形成された第２ラグの間に、二つの短ラグが突出形成された第１ラグが両側に設置されることで、これを実際に運用するに際し、前記第１ラグ及び第２ラグの間の空間が非常に詰まっており、土が混入することからうまく培土が行えず、時間が経過するにつれて土が固着し、特に湿田（排水がうまく行えず、常に湿気の多い田）の場合、滑りや空回りが発生することから湿田から抜け出すことができなくなる問題点が惹起される。 However, the prior art has a first lug with two short lugs protruding on both sides between the second lugs with long lugs protruding across the entire width of the crawler body. In actual operation, the space between the first lug and the second lug is very clogged and soil cannot be cultivated well because soil is mixed in, and the soil adheres as time passes. In the case of (a field where drainage cannot be performed well and the humidity is always high), there is a problem that slipping and idling occur and it is impossible to escape from the wet field.
本発明は、前記先行技術が内包する諸般の問題点を積極的に解消するためのものであり、デュオセンターラグの間に一方にのみ形成されたデュオサイドラグと対向する開放部を介して土が入り込まず円滑に培土できるようにすることを発明の解決課題とする。 The present invention is intended to positively solve the various problems included in the prior art, and through the open portion facing the duo side lug formed only on one side between the duo center lugs. It is an object of the invention to make it possible to cultivate smoothly without entering.
また、本発明は、前記デュオサイドラグと同一線上に形成された多数のセルフクリーニング培土溝を介して土が前記デュオサイドラグと対向する側方に円滑に自動培土せしめることを発明の解決課題とする。 Further, the present invention is to solve the problem of the present invention that the soil can be smoothly and automatically cultivated on the side facing the duoside lug through a number of self-cleaning soil grooves formed on the same line as the duoside lug. To do.
また、本発明は、前記デュオセンターラグの不足した接地力を前記デュオサイドラグが補って接地力を更に強化し、推進力を向上せしめることを発明の解決課題とする。 Another object of the present invention is to improve the propulsive force by further strengthening the contact force by the duo side lug supplementing the insufficient contact force of the duo center lug.
また、本発明は、クローラ本体の両側表面に突出形成されたエッジ補強突部が走行時にクローラが内面側に折れることを防止せしめることを発明の解決課題とする。 Another object of the present invention is to prevent the edge reinforcing protrusions that are formed to protrude on both side surfaces of the crawler body from breaking the crawler on the inner surface side during traveling.
本発明は、前記の課題を解決するための手段として、クローラ本体の中央に等間隔で貫通形成されたスプロケット穴の間の外側表面に、両サイドを除いた中央部に幅方向に多数のデュオセンターラグを突出形成し、前記デュオセンターラグを間に置き、前後の一方に交互にデュオサイドラグを突出形成するとともに、前記デュオセンターラグ及びデュオサイドラグの組合せを１組とするラグパターンを他のデュオセンターラグの間に等しいパターンとして連続反復し形成する技術を講ずる。 As a means for solving the above-mentioned problems, the present invention provides a large number of duo in the width direction at the center portion excluding both sides on the outer surface between sprocket holes formed at equal intervals in the center of the crawler body. A center lug is projected, the duo center lug is placed in between, and a duo side lug is alternately projected on one of the front and rear, and the other combination of the duo center lug and duo side lug The technique of continuously repeating and forming as an equal pattern between duo center rugs.
本発明によれば、デュオセンターラグ間のうちの一方にのみデュオサイドラグが突出形成されることにより、前記デュオサイドラグを除く前記デュオセンターラグ間に形成された開放部を介して土が混入せず円滑に培土される効果を提供する。 According to the present invention, the duo side lug is formed to protrude only on one side between the duo center lugs, so that the soil is mixed through the open portion formed between the duo center lugs excluding the duo side lugs. Provide an effect that can be cultivated smoothly.
なおかつ前記デュオセンターラグの間の外側表面にはセルフクリーニング培土溝が形成されることにより、前記デュオセンターラグの間に土が入り込まず前記セルフクリーニング培土溝を介して自動で円滑に培土され、湿田において滑る、または空回りせずに円滑に走行する効果を提供する。 In addition, a self-cleaning soil groove is formed on the outer surface between the duo center lugs, so that soil does not enter between the duo center lugs and is automatically and smoothly ground through the self-cleaning soil grooves. It provides the effect of running smoothly without slipping or idling.
また、前記デュオセンターラグを間に置き、前後の一端に交互にデュオサイドラグが形成されることにより、不足した接地力を大幅に強化し推進力を向上させることはもちろん、乗り心地を向上させる効果を提供する。 In addition, by placing the duo center lug in between and duo side lugs are formed alternately at the front and rear ends, the insufficient grounding force is greatly enhanced and the driving force is improved, as well as the riding comfort. Provide effect.
また、本発明のデュオサイドラグは、クローラの内部に埋設された一部のスチールコアと重畳することで前記スチールコアを保護し、寿命を延ばす効果を提供する。 Moreover, the duo side lug of this invention protects the said steel core by overlapping with the one part steel core embed | buried under the inside of a crawler, and provides the effect of extending a lifetime.
また、本発明は、クローラ本体の両側表面にエッジ補強突部が突出形成されることからクローラのエッジ部が内面側に折れながら駆動ボックスに衝突することを防止し、クローラの損傷及び騷音発生を抑制するとともに円滑な直進性を確保する効果を提供する。 In addition, the present invention prevents the crawler from colliding with the drive box while the edge portion of the crawler is bent to the inner surface side because the edge reinforcing protrusions are formed on both side surfaces of the crawler body, and the crawler is damaged and generates noise. And the effect of ensuring smooth straightness.
本発明が解決しようとする課題の解決手段をより具体的に具現するための好ましい実施例について説明する。 A preferred embodiment for more concretely realizing the solution of the problem to be solved by the present invention will be described.
本発明の好ましい実施例による湿田用デュオクローラ（Ｃ）の全体的な構成を添付された図面に基づいて概略的に観察すると、スプロケット穴（１０）、デュオセンターラグ（２０）（２０ａ）、デュオサイドラグ（３０）（３０ａ）の構成要素に大別されることが確認できる。 A general structure of a duo crawler for wetlands (C) according to a preferred embodiment of the present invention will be described with reference to the attached drawings. A sprocket hole (10), a duo center lug (20) (20a), a duo It can confirm that it is divided roughly into the component of a side lug (30) (30a).
以下、前記概略的な構成から成る本発明を実施しやすいようにもう少し詳細に説明する事にする。 Hereinafter, a more detailed description will be given to facilitate the implementation of the present invention having the above-described schematic configuration.
本発明では、無端状に形成されるクローラ本体（１）の中央に長さ方向に沿って等間隔にスプロケットと噛合う多数のスプロケット穴（１０）が貫通形成される。 In the present invention, a large number of sprocket holes (10) that mesh with the sprockets are formed at equal intervals along the length direction in the center of the endless crawler body (1).
このようなスプロケット穴（１０）の間には、前記クローラ本体（１）の外側表面に、両サイドを除いた中央部に一対を成すデュオセンターラグ（２０）（２０ａ）が、幅方向に長く一体突出形成される。 Between such sprocket holes (10), a pair of duo center lugs (20) and (20a) are formed on the outer surface of the crawler main body (1) at the center except for both sides. Integrally protruding.
そして、前記デュオセンターラグ（２０）（２０ａ）のうちのいずれか一つのデュオセンターラグ（２０）を間に置き、前後にはそれぞれの一端に相互に一対を成すデュオサイドラグ（３０）（３０ａ）が交互に突出形成されることにより、前記デュオサイドラグ（３０）（３０ａ）は一方のサイドにのみ部分的に配置され、前記デュオサイドラグ（３０）（３０ａ）を除いた前記デュオセンターラグ（２０）（２０ａ）の間には余裕を持った広い開放部（４０）が形成され、土が入り込みまたは固着することを効率的に防止することができるようになる。 Further, any one of the duo center lugs (20) and (20a) is placed in between, and the duo side lugs (30) and (30a) that form a pair with each other at the front and rear sides respectively. ) Are alternately formed so that the duo side lugs (30) and (30a) are partially disposed only on one side, and the duo center lugs excluding the duo side lugs (30) and (30a) (20) A wide open portion (40) having a margin is formed between (20a), and it is possible to efficiently prevent soil from entering or fixing.
加えて本発明は、前記デュオセンターラグ（２０）及びデュオサイドラグ（３０）（３０ａ）の組合せを１組として図３のようにラグパターン（５０）を構成し、前記ラグパターン（５０）はクローラ本体（１）の外側表面に連続して反復形成されることで完成された湿田用デュオクローラ（Ｃ）を具現せしめる。 In addition, in the present invention, a combination of the duo center lug (20) and duo side lug (30) (30a) is used as one set to form a lug pattern (50) as shown in FIG. 3, and the lug pattern (50) The duo crawler for wetlands (C) completed by repeatedly forming continuously on the outer surface of the crawler body (1) is realized.
したがって本発明は、前記メインを構成するデュオセンターラグ（２０）（２０ａ）の間に図３のように一方のサイドにのみデュオサイドラグ（３０）（３０ａ）が突出形成された革新的な構造化を成し、前記デュオサイドラグ（３０）（３０ａ）を除いたデュオセンターラグ（２０）（２０ａ）の間に形成された開放部（４０）を介して土が入り込まず側方に円滑に培土される有用な効果を提供する。 Therefore, the present invention is an innovative structure in which the duo side lugs (30) and (30a) are formed to protrude only on one side between the duo center lugs (20) and (20a) constituting the main as shown in FIG. Smoothly to the side without soil entering through the open part (40) formed between the duo center lugs (20) and (20a) excluding the duo side lugs (30) and (30a) Provide useful effects cultivated.
このとき本発明は、培土性能を更に向上するための技術構成が追加で接木されるものとして、前記デュオサイドラグ（３０）（３０ａ）と同一線上に前記クローラ本体（１）の外側表面には多数のセルフクリーニング培土溝（６０）が幅方向に沿って連続して陥没形成されることにより、走行時、前記セルフクリーニング培土溝（６０）に乗って土が前記デュオサイドラグ（３０）（３０ａ）と対向する側方に円滑に培土されつつ、湿田で滑りや空回りすることなく円滑に走行することができるようになる。 At this time, the present invention assumes that the technical configuration for further improving the soil cultivation performance is additionally grafted, and on the outer surface of the crawler body (1) on the same line as the duoside lugs (30) (30a). A large number of self-cleaning soil grooves (60) are continuously depressed along the width direction, so that when traveling, the soil rides on the self-cleaning soil grooves (60) and the duo side lugs (30) (30a ) And smoothly cultivated on the side opposite to it, and can run smoothly without slipping or spinning in the wetlands.
また、本発明は、前記多数のデュオセンターラグ（２０ａ）の中央に前後を貫く培土通路（２２）が形成されることにより前記デュオセンターラグ（２０）の間が完全に断絶されずに前記培土通路（２２）を媒介として相互連通した状態を維持し、土がデュオセンターラグ（２０ａ）にへばりつかず、隣接するスプロケット穴（１０）及び開放部（４０）に誘導されて更に円滑に培土される効果を提供する。 Further, the present invention provides a culture soil passage (22) penetrating front and rear in the center of the large number of duo center rugs (20a), so that the duo center rugs (20) are not completely disconnected from each other. Maintaining the state of mutual communication through the passage (22), the soil does not reach the duo center lug (20a), and is guided to the adjacent sprocket hole (10) and the open portion (40) to further smoothly cultivate the soil. To provide the effect.
一方、本発明は、前記デュオサイドラグ（３０）（３０ａ）の外側面（３３）が図５のようにデュオセンターラグ（２０）の外側面（２３）に比べてほとんど垂直に近い形態に形成されることを技術的な特徴にする。 On the other hand, according to the present invention, the outer side surface (33) of the duo side lugs (30) and (30a) is formed in a shape almost perpendicular to the outer side surface (23) of the duo center lug (20) as shown in FIG. To be a technical feature.
すなわち、前記デュオサイドラグ（３０）（３０ａ）は、外側面（３３）が垂直を基準として５°以内の角度で形成される細部技術構成で構成されることから前記デュオサイドラグ（３０）（３０ａ）の表面積が増大されて接地力を大幅に強化し、走行時の推進力を向上させることはもちろん、乗り心地を向上させる効果を提供する That is, the duo side lugs (30) and (30a) are configured in a detailed technical configuration in which the outer side surface (33) is formed at an angle of 5 ° or less with respect to the vertical, so that the duo side lugs (30) ( The surface area of 30a) has been increased to significantly enhance the ground contact force and improve the driving force as well as the driving comfort.
このとき、本発明において前記外側面（３３）を垂直に形成すれば接地力を更に向上させることができるが、前記最小限の５゜以内の角度を維持する理由は金型を利用して製作する過程において脱型時、前記湿田型デュオクローラ（Ｃ）が円滑に脱型できるようにするためである。 At this time, in the present invention, if the outer side surface (33) is formed vertically, the ground contact force can be further improved, but the reason for maintaining the minimum angle within 5 ° is to use a mold. This is because the wet paddy duo crawler (C) can be smoothly removed during the removal of the mold.
また、本発明は、前記デュオサイドラグ（３０）（３０ａ）の一端が図３及び図５のように部分的に前記デュオセンターラグ（２０）（２０ａ）の間に位置するよう形成される技術が更に接木される。 Further, the present invention is a technique in which one end of the duo side lugs (30) and (30a) is formed so as to be partially located between the duo center lugs (20) and (20a) as shown in FIGS. Is further grafted.
このように前記デュオセンターラグ（２０）（２０ａ）の間に位置する部分は、前記クローラ本体（１）の内部に埋設された一部のスチールコア（２）と上下に重畳されることで前記スチールコア（２）を保護しつつ破損を防止し、耐久年限を向上させることが可能となる。 As described above, the portion located between the duo center lugs (20) and (20a) overlaps with a part of the steel core (2) embedded in the crawler body (1) in the vertical direction. While protecting the steel core (2), it is possible to prevent breakage and to improve the durability period.
また、本発明は、図１乃至図３とのように前記クローラ本体（１）の両側表面に長さ方向に沿ってエッジ補強突部（７０）が突出形成されることにより、前記エッジ補強突部（７０）はクローラ本体（１）の両側強度を補強し、エッジ部（７１）が内面側で折れることを防止する。 Further, according to the present invention, as shown in FIGS. 1 to 3, the edge reinforcing protrusions (70) are formed to protrude along the length direction on both side surfaces of the crawler body (1). The part (70) reinforces the strength on both sides of the crawler body (1) and prevents the edge part (71) from being broken at the inner surface side.
したがって、前記クローラ本体（１）のエッジ部（７１）が折れながら駆動ボックスに衝突することを防止することにより、湿田用デュオクローラ（Ｃ）の損傷を防止することはもちろん、騷音発生を抑制し、走行時に更に円滑な直進性を発揮することが可能となる。 Therefore, by preventing the crawler body (1) from colliding with the drive box while the edge portion (71) of the crawler body (1) is broken, the duo crawler for wet fields (C) is prevented from being damaged and the occurrence of noise is suppressed. In addition, it is possible to exhibit smoother straightness during traveling.
Ｃ： 湿田用デュオクローラ
１： クローラ本体
２： スチールコア
１０： スプロケット穴
２０， ２０ａ： デュオセンターラグ
２２： 培土通路
２３， ３３： 外側面
３０、３０ａ： デュオサイドラグ
４０： 開放部
５０： ラグパターン
６０： セルフクリーニング培土溝
７０： エッジ補強突部
７１： エッジ部
C: Wet paddle crawler 1: Crawler body 2: Steel core 10:
Claims (7)
前記スプロケット穴（１０）の間のクローラ本体（１）の外側表面に両サイドを除いた中央部に幅方向に突出形成されたデュオセンターラグ（２０）（２０ａ）と、
前記デュオセンターラグ（２０）を間に置き、前後の一方に交互に突出形成されたデュオサイドラグ（３０）（３０ａ）から成る一方、
前記デュオセンターラグ（２０）（２０ａ）及びデュオサイドラグ（３０）（３０ａ）の組合せを一組とするラグパターン（５０）が連続反復して形成されることを特徴とする培土効率が向上した湿田用デュオクローラ。 A number of sprocket holes (10) formed at equal intervals in the center of the crawler body (1);
A duo center lug (20) (20a) formed in the width direction in the central portion excluding both sides on the outer surface of the crawler body (1) between the sprocket holes (10);
While the duo center lug (20) is placed in between, the duo side lugs (30) (30a) are alternately formed on the front and rear sides.
The soil cultivation efficiency is improved, characterized in that a rug pattern (50) comprising a combination of the duo center rug (20) (20a) and the duo side rug (30) (30a) is continuously repeated. Duo crawler for wet fields.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2014-0126522 | 2014-09-23 | ||
| KR20140126522A KR101508135B1 (en) | 2014-09-23 | 2014-09-23 | Duo crawler for wet paddy with improved in mud extraction performance |
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| Publication Number | Publication Date |
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| JP2016068937A true JP2016068937A (en) | 2016-05-09 |
| JP6163669B2 JP6163669B2 (en) | 2017-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2015168020A Active JP6163669B2 (en) | 2014-09-23 | 2015-08-27 | Duo crawler for wetlands with improved soil cultivation efficiency {Duocrawlerforpaddywithimprovementductionperformance} |
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| JP (1) | JP6163669B2 (en) |
| KR (1) | KR101508135B1 (en) |
| PH (1) | PH12015000272A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706849A (en) * | 2021-01-12 | 2021-04-27 | 天津特智履研究开发有限公司 | Antiskid track for snowfield |
| WO2024077383A1 (en) * | 2022-10-12 | 2024-04-18 | Camso Inc. | Uneven-edged track for traction of a vehicle |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101670680B1 (en) | 2016-05-03 | 2016-10-31 | 티알벨트랙 주식회사 | Crawler with wear indicator |
| US11572115B2 (en) * | 2019-07-17 | 2023-02-07 | Srj, Inc. | Tread pattern |
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| JPH08192779A (en) * | 1995-01-18 | 1996-07-30 | Ohtsu Tire & Rubber Co Ltd :The | Elastic crawler |
| JP2006321293A (en) * | 2005-05-17 | 2006-11-30 | Xenith Track Co Ltd | Elastic crawler |
| JP2008126749A (en) * | 2006-11-17 | 2008-06-05 | Bridgestone Corp | Rubber crawler |
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2014
- 2014-09-23 KR KR20140126522A patent/KR101508135B1/en active IP Right Grant
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2015
- 2015-08-24 PH PH12015000272A patent/PH12015000272A1/en unknown
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Patent Citations (5)
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|---|---|---|---|---|
| JPH07215250A (en) * | 1994-02-02 | 1995-08-15 | Ohtsu Tire & Rubber Co Ltd :The | Elastic crawler belt for crawler |
| JP2012171502A (en) * | 2011-02-22 | 2012-09-10 | Bridgestone Corp | Elastic crawler |
| JP2013107471A (en) * | 2011-11-18 | 2013-06-06 | Bridgestone Corp | Elastic crawler |
| JP2013220720A (en) * | 2012-04-16 | 2013-10-28 | Bridgestone Corp | Rubber crawler |
| JP2014118045A (en) * | 2012-12-17 | 2014-06-30 | Sumitomo Rubber Ind Ltd | Elastic crawler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112706849A (en) * | 2021-01-12 | 2021-04-27 | 天津特智履研究开发有限公司 | Antiskid track for snowfield |
| WO2024077383A1 (en) * | 2022-10-12 | 2024-04-18 | Camso Inc. | Uneven-edged track for traction of a vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| PH12015000272A1 (en) | 2017-03-06 |
| JP6163669B2 (en) | 2017-07-19 |
| KR101508135B1 (en) | 2015-04-07 |
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