JP2024036250A - Road surface snow/ice crushing and rolling compaction device - Google Patents

Road surface snow/ice crushing and rolling compaction device Download PDF

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JP2024036250A
JP2024036250A JP2022141081A JP2022141081A JP2024036250A JP 2024036250 A JP2024036250 A JP 2024036250A JP 2022141081 A JP2022141081 A JP 2022141081A JP 2022141081 A JP2022141081 A JP 2022141081A JP 2024036250 A JP2024036250 A JP 2024036250A
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JP7241952B1 (en
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貴志 山崎
Takashi Yamazaki
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Abstract

To provide a road surface snow/ice crushing and rolling compaction device suitable for making a road surface situation easy for a vehicle or the like to pass by crushing, laying and rolling snow and compressed ice on a road surface.SOLUTION: A road surface snow/ice crushing and rolling compaction device is a mechanical device installed in vehicles and moving bodies, and is provided with a crushing device 1 for crushing the snow and ice on the road surface by a dynamic structure, a laying and leveling device 2 for laying and leveling the crushed snow and ice, and a rolling compaction device 3 for rolling and compacting the laid snow and ice. A heating device 7 for heating snow/ice on the road surface and the rolling compaction device 3, or a spraying device 8 for spraying the snow and ice on the road surface with water, hot-water, chemicals, salts, ammonium sulfate, chemicals, etc., may be provided.SELECTED DRAWING: Figure 2

Description

本発明は、路面上の積雪や圧雪氷の破砕・敷きならし・転圧を行うことで、車両等が通行しやすい路面状況を作るのに好適な、路面雪氷破砕転圧装置に関する。 The present invention relates to a road surface snow/ice crushing and compaction device suitable for creating a road surface condition that is easy for vehicles to pass by crushing, leveling, and compacting snow and compacted snow and ice on a road surface.

積雪地域では、道路等に積もった雪は、通常、除雪車両などの機械装置での除雪により路面上から移動され路側等に積み上げられる。この路側等に積み上げられた雪は市民生活に大きな影響を与えるため、路側等に雪を積み上げないで道路等に積もった雪を処理する方法が望まれる。
路側等に雪を積み上げないで道路等に積もった雪を処理する方法として、引用文献１に、積雪路面を圧雪する積雪路面整備装置が、引用文献２に、雪を道路面に押しつける圧雪装置が開示されている。 In areas with heavy snowfall, snow accumulated on roads and the like is usually removed from the road surface by snow removal using a mechanical device such as a snowplow vehicle and piled up on the roadside. Since this snow piled up on roadsides, etc. has a major impact on the lives of citizens, it is desirable to have a method of disposing of snow piled up on roads, etc. without piling up snow on roadsides, etc.
As a method for disposing of snow accumulated on roads without piling up snow on the roadside, Cited Document 1 discloses a snow-covering road maintenance device that compacts snow on the road surface, and Cited Document 2 discloses a snow compacting device that presses snow onto the road surface. Disclosed.

特開２００６－２７４５６９号公報Japanese Patent Application Publication No. 2006-274569 特開２０１１－１８４８７７号公報Japanese Patent Application Publication No. 2011-184877

路側等に雪を積み上げないで道路等に積もった雪を処理する方法として、引用文献１に、積雪路面の雪を掘り起こして圧雪する積雪路面整備装置が開示されているが、積雪路面の雪を掘り起こす雪堀ユニット３が静的構造、かつ、自重とウェイトによる荷重で雪に食い込ませる構造のため、堅く凍りついているような雪氷路面では十分な雪の掘り起こしが困難なものとなっている。また、引用文献２に、雪を道路面に押し付ける圧雪装置が開示されているが、降り積った雪を圧雪するものであるため、既に深い轍が発生して堅く凍りついているような雪氷路面では、平坦な路面状況を作ることが困難なものとなっている。 As a method for disposing of snow accumulated on roads without piling up snow on roadsides, Cited Document 1 discloses a snow-covered road maintenance device that digs up and compacts snow on snow-covered roads. Since the digging snow moat unit 3 has a static structure and a structure that digs into the snow with its own weight and weight, it is difficult to dig out enough snow on a hard frozen snow and ice road surface. In addition, Cited Document 2 discloses a snow compaction device that presses snow onto a road surface, but since it is a device that compacts fallen snow, it cannot be used on snowy and icy roads that have already formed deep ruts and are frozen solid. This makes it difficult to create a flat road surface.

本発明は、動的構造である破砕装置１により路面上の雪氷をある程度の厚みで破砕して、破砕した雪氷を敷均し装置２により敷きならして、転圧装置３により転圧を行うことで、既に深い轍が発生して堅く凍り付いているような雪氷路面であっても、車両等が通行しやすい平坦な路面状況を作るのに好適な、路面雪氷破砕転圧装置を提供するものである。 The present invention crushes snow and ice on a road surface to a certain thickness using a crushing device 1 having a dynamic structure, spreads the crushed snow and ice using a leveling device 2, and compacts it using a compaction device 3. To provide a road surface snow and ice crushing compaction device suitable for creating a flat road surface condition that allows vehicles etc. to easily pass even on a snow and ice road surface where deep ruts have already occurred and solidly frozen. It is.

車両や移動体に設置する機械装置であって、動的構造により路面上の雪氷を破砕する破砕装置１と、破砕した雪氷を敷きならす敷均し装置２と、敷きならした雪氷を転圧する転圧装置３と、を備えることを特徴とする、路面雪氷破砕転圧装置とする。 It is a mechanical device installed on a vehicle or moving body, and includes a crushing device 1 that crushes snow and ice on the road surface using a dynamic structure, a leveling device 2 that spreads the crushed snow and ice, and a rolling device that compacts the spread snow and ice. A road surface snow and ice crushing compaction device is characterized in that it is equipped with a pressure device 3.

路面上の雪氷を破砕装置１によりある程度の厚みで破砕し、破砕した雪氷を敷均し装置２により進行方向に対して左右方向に略均一に敷きならし、敷きならした雪氷を転圧装置３により転圧することにより、車両等が通行しやすい平坦な路面状況を作ることができる。本路面雪氷破砕転圧装置による路面上の雪氷処理は、本路面雪氷破砕転圧装置の進行範囲の雪氷が転圧されていくものであるため、処理後の雪氷が路側等に積み上げられることがなく、除雪のように処理後の雪氷の移動先を考慮する必要がないものである。 The snow and ice on the road surface is crushed to a certain thickness by a crushing device 1, the crushed snow and ice is spread almost uniformly in the horizontal direction with respect to the direction of travel by a leveling device 2, and the leveled snow and ice is crushed by a compaction device 3. By compacting the road surface, it is possible to create a flat road surface that is easy for vehicles to pass. The snow and ice treatment on the road surface by this road snow and ice crushing and compacting device involves compacting the snow and ice within the range of travel of this road surface snow and ice crushing and compacting device, so the treated snow and ice does not accumulate on the roadside, etc. Unlike snow removal, there is no need to consider the destination of snow and ice after treatment.

実施例１の側面図である。FIG. 2 is a side view of Example 1. 実施例１における雪氷処理状況図である。FIG. 3 is a diagram of the snow and ice treatment situation in Example 1. 実施例２の側面図である。FIG. 3 is a side view of Example 2.

車両や移動体に設置する機械装置であって、動的構造により路面上の雪氷を破砕する破砕装置１と、破砕した雪氷を敷きならす敷均し装置２と、敷きならした雪氷を転圧する転圧装置３と、を備えることを特徴とする、路面雪氷破砕転圧装置とする。 It is a mechanical device installed on a vehicle or moving body, and includes a crushing device 1 that crushes snow and ice on the road surface using a dynamic structure, a leveling device 2 that spreads the crushed snow and ice, and a rolling device that compacts the spread snow and ice. A road surface snow and ice crushing compaction device is characterized in that it is equipped with a pressure device 3.

図１に、本路面雪氷破砕転圧装置の実施例１を示す。実施例１では、本路面雪氷破砕転圧装置を既存のロータリ除雪車の前部に取り付けるものとしている。着脱可能とすることで、本路面雪氷破砕転圧装置を使用しない場合には通常のロータリ除雪車として使用することができる。
破砕装置１は、ロータリ除雪車におけるオーガのような回転運動装置としており、高さ調節機構を設けることで雪氷を破砕する厚さを調節できるものとしている。敷均し装置２は、路面との隙間を調節することができるシャッターとしており、破砕した雪氷の量に応じて敷きならしの厚さを調節できるようにしている。転圧装置３は、転圧部分である転圧板４をそり形状とし、強力かつ効率的な転圧を行えるように起振装置５を備えている。また、転圧装置３には、高さ調節機構を設けており、転圧装置３の自重や起振装置５による力のほかに、取り付け車両の重量を加えて転圧を行えるようにしている。路面上に降り積もった積雪を破砕装置１に取り込むために予圧板６を破砕装置１の前方に備え、予圧板６は積雪量に応じて位置を調節できるようにしている。積雪が少ない時には、予圧板６を格納できるようにして、人などを巻き込みにくくするようにしている。雪氷の一部を溶かすことで転圧後の雪面強度を上げる効果を期待するために、転圧前の雪氷および転圧板４への加熱を行う、加熱装置７としてのバーナーを転圧装置３の前方に備えている。加熱装置７での加熱を効率よく行うため、転圧装置３や加熱装置７を覆うように、保温カバー９を備えている。なお、図１および図２では、保温カバー９の内側の構造を表現するため、側面の保温カバー９を外した状態を示している。巻き込み事故防止などの安全対策のため、動的構造を持つ破砕装置１を覆うように、安全カバー１０を備えている。 FIG. 1 shows Example 1 of the present road surface snow and ice crushing compaction device. In the first embodiment, the present road snow and ice crushing compaction device is attached to the front part of an existing rotary snowplow. By making it removable, it can be used as a normal rotary snowplow when the present road snow and ice crushing compaction device is not in use.
The crushing device 1 is a rotary motion device such as an auger in a rotary snowplow, and is provided with a height adjustment mechanism so that the thickness of the snow and ice to be crushed can be adjusted. The leveling device 2 is a shutter that can adjust the gap with the road surface, and the thickness of leveling can be adjusted according to the amount of crushed snow and ice. The rolling device 3 has a rolling plate 4, which is a rolling portion, in a warped shape, and is equipped with a vibrating device 5 so as to perform powerful and efficient rolling. Further, the compaction device 3 is provided with a height adjustment mechanism, and in addition to the own weight of the compaction device 3 and the force generated by the vibration generator 5, it is possible to perform compaction by adding the weight of the vehicle to which it is attached. . A preload plate 6 is provided in front of the crusher 1 to take the snow accumulated on the road surface into the crusher 1, and the position of the preload plate 6 can be adjusted according to the amount of snow. When there is little snow, the preload plate 6 can be retracted to prevent people from getting caught. In order to expect the effect of increasing the strength of the snow surface after compaction by melting a part of the snow and ice, the compaction device 3 is equipped with a burner as a heating device 7 that heats the snow and ice and the compaction plate 4 before compaction. Ready ahead. In order to efficiently heat the heating device 7, a heat retaining cover 9 is provided to cover the rolling device 3 and the heating device 7. In addition, in FIGS. 1 and 2, in order to express the structure inside the heat retaining cover 9, the state in which the heat retaining cover 9 on the side surface is removed is shown. For safety measures such as prevention of entanglement accidents, a safety cover 10 is provided to cover the crushing device 1 having a dynamic structure.

図２に、実施例１における、路面上の雪氷を処理する状況を示す。積雪を破砕装置１に取り込めるように、積雪量に応じて予圧板６を使用して積雪の予備圧雪を行う。破砕装置１により圧雪氷をある程度の厚みで破砕して、積雪がある場合には積雪と破砕した圧雪氷が合わさって破砕雪氷となる。破砕雪氷は敷均し装置２により左右均一の厚みに敷きならす。加熱装置７により、敷きならした破砕雪氷表面および転圧板４を加熱して、破砕雪氷表面の一部を融解させる。その後、転圧装置３により転圧を行うことで、路面上に圧雪状態の転圧雪氷が作成されるとともに、前記の一部融解した雪氷の水分により、転圧雪氷表面の強度が高くなるようにしている。 FIG. 2 shows a situation in which snow and ice on a road surface are treated in Example 1. Preliminary compaction of the snow is performed using a preload plate 6 according to the amount of snow so that the snow can be taken into the crushing device 1. A crushing device 1 crushes compressed snow and ice to a certain thickness, and when there is snow, the snow and crushed snow and ice are combined to form crushed snow and ice. The crushed snow and ice is spread by a leveling device 2 to a uniform thickness on both sides. The heating device 7 heats the surface of the crushed snow and ice that has been laid down and the compaction plate 4 to melt a part of the surface of the crushed snow and ice. Thereafter, compaction is performed by the compaction device 3 to create compacted snow and ice on the road surface, and the water content of the partially melted snow and ice increases the strength of the surface of the compacted snow and ice. I have to.

図３に、本路面雪氷破砕転圧装置の実施例２を示す。実施例２では、本路面雪氷破砕転圧装置を専用車両の前後輪の間に配置するものとしている。
破砕装置１は、ロータリ除雪車におけるオーガのような回転運動装置としており、高さ調節機構を設けることで雪氷を破砕する厚さを調節できるものとしている。敷均し装置２は、路面との隙間を調節することができるシャッターとしており、破砕した雪氷の量に応じて敷きならしの厚さを調節できるようにしている。転圧装置３は、転圧部分を突起がついたローラー形状として転圧後の雪面路面にくぼみをつけることですべり防止効果を期待するとともに、強力かつ効率的な転圧を行えるように起振装置５を備えている。また、転圧装置３には、高さ調節機構を設けており、転圧装置３の自重や起振装置５による力のほかに、取り付け車両の重量を加えて転圧を行えるようにしている。なお、取り付け車両の重量を大きく加えた場合には、取り付け車両の後輪の荷重が抜けるため、転圧装置３の回転駆動力により取り付け車両を推進させることもできるようにしている。路面上に降り積もった積雪を破砕装置１に取り込むために、固定式の予圧板６を破砕装置１の前方に備えている。転圧後の雪面強度を上げる効果を期待するために、転圧前の雪氷に水を散布する散布装置８を転圧装置３の前方に備えている。 FIG. 3 shows a second embodiment of the present road surface snow and ice crushing compaction device. In the second embodiment, the present road snow and ice crushing compaction device is disposed between the front and rear wheels of a dedicated vehicle.
The crushing device 1 is a rotary motion device such as an auger in a rotary snowplow, and is equipped with a height adjustment mechanism so that the thickness of the snow and ice to be crushed can be adjusted. The leveling device 2 is a shutter that can adjust the gap with the road surface, and the thickness of leveling can be adjusted according to the amount of crushed snow and ice. The rolling device 3 has a rolling part shaped like a roller with protrusions to create depressions in the snow surface after rolling, which is expected to have an anti-slip effect, and is also designed to enable powerful and efficient rolling. A shaking device 5 is provided. Further, the compaction device 3 is provided with a height adjustment mechanism, and in addition to the own weight of the compaction device 3 and the force from the vibration device 5, it is possible to perform compaction by adding the weight of the vehicle to which it is attached. . In addition, when the weight of the attached vehicle is large, the load on the rear wheels of the attached vehicle is removed, so that the attached vehicle can also be propelled by the rotational driving force of the compaction device 3. A fixed preload plate 6 is provided in front of the crushing device 1 in order to take the snow accumulated on the road surface into the crushing device 1. In order to expect the effect of increasing the strength of the snow surface after compaction, a spraying device 8 for spraying water on the snow and ice before compaction is provided in front of the compaction device 3.

破砕装置１は、実施例１～２に示すように、ロータリ除雪車におけるオーガのような回転運動装置を想定しているが、コンクリートブレーカーのような往復運動装置としてもよい。また、破砕装置１に高さ調節機構を設けることで路面上の雪氷を破砕する厚さを調節できるが、高さ調節機構の有無は限定されるものではない。 As shown in Examples 1 and 2, the crushing device 1 is assumed to be a rotary motion device such as an auger in a rotary snowplow, but it may also be a reciprocating motion device such as a concrete breaker. Further, by providing the crushing device 1 with a height adjustment mechanism, the thickness of crushing snow and ice on the road surface can be adjusted, but the presence or absence of the height adjustment mechanism is not limited.

転圧装置３は、起振装置５が備わっている方が強力かつ効率的な転圧を行うことができるが、転圧装置３自体の重量や取り付け車両の重量により静的な転圧を行うものも考えられ、この場合には構造を簡易にすることができる。また、転圧装置３の転圧部分は実施例１のようなそり形状でも、実施例２のようなローラー形状でもよく、転圧部分に設ける突起の有無や表面形状は限定されるものではない。例えば、実施例１のようなそり形状の下表面に、進行方向に沿った凹凸をつけることで、転圧後の雪氷路面に凹凸をつけることができ、すべり防止効果を期待できる。 The compaction device 3 can perform more powerful and efficient compaction if it is equipped with the vibration generator 5, but static compaction is performed due to the weight of the compaction device 3 itself and the weight of the vehicle to which it is attached. In this case, the structure can be simplified. Further, the rolling portion of the rolling device 3 may have a warped shape as in Embodiment 1 or a roller shape as in Embodiment 2, and the presence or absence of protrusions provided on the rolling portion and the surface shape are not limited. . For example, by providing unevenness along the traveling direction on the lower surface of the sled shape as in Example 1, it is possible to provide unevenness to the snow and ice road surface after compaction, and an anti-slip effect can be expected.

転圧後の雪面強度を上げる方法としては、前記のように転圧装置３の前方で熱や水分を加える処置のほかにも、処置箇所としては、破砕装置１の前後や転圧装置３の前後が考えられ、処置方法としては、バーナーなどによる加熱、水や湯や薬液などの散布、塩や硫安や薬材などの散布、などが考えられる。なお、これらの処置の効果は気温や雪温などの環境条件に大きく影響を受けるため、これらの処置は常時使用するものではなく、環境条件などにより使用を判断するものである。 As a method of increasing the strength of the snow surface after compaction, in addition to applying heat and moisture in front of the compaction device 3 as described above, treatment locations include the areas before and after the crushing device 1 and the compaction device 3. Possible treatment methods include heating with a burner, spraying water, hot water, chemicals, etc., and spraying salt, ammonium sulfate, and chemicals. Note that the effects of these treatments are greatly affected by environmental conditions such as air temperature and snow temperature, so these treatments are not to be used all the time, and their use is determined based on environmental conditions.

本路面雪氷破砕転圧装置は既存の除雪車両や土木工事車両などに取り付けられるアタッチメント装置としてもよいし、本路面雪氷破砕転圧装置専用の車両に取り付けて専用車両とすることも可能である。前者の場合、取り付け車両から本路面雪氷破砕転圧装置を取り外すことにより、取り付け車両を自身の用途として使用することができる。 This road snow and ice crushing compaction device may be used as an attachment device that can be attached to existing snow removal vehicles, civil engineering vehicles, etc., or it can be attached to a vehicle dedicated to this road snow and ice crushing compaction device to make it a dedicated vehicle. In the former case, by removing the present road snow and ice crushing compaction device from the vehicle to which it is attached, the vehicle to which it is attached can be used for its own purpose.

本路面雪氷破砕転圧装置は破砕装置１・敷均し装置２・転圧装置３が一体でもそれぞれ別体でもよく、それぞれ別体の場合には、取り付け車両前方に破砕装置１を、中央部に敷均し装置２を、後方に転圧装置３を、それぞれ設置するなど、破砕装置１・敷均し装置２・転圧装置３をそれぞれ別々の場所に配置することもできる。 In this road surface snow and ice crushing compaction device, the crushing device 1, leveling device 2, and compaction device 3 may be integrated or separate. If they are separate, the crushing device 1 is attached to the front of the vehicle, and the crushing device 1 is installed in the front part of the vehicle. The crushing device 1, the leveling device 2, and the rolling device 3 can be placed in separate locations, such as installing the leveling device 2 at the rear and the rolling device 3 at the rear.

本路面雪氷破砕転圧装置の駆動方法は、油圧モーターや油圧シリンダーなど、取り付け車両に搭載する油圧発生装置が発生する油圧を利用する駆動方法を想定しているが、本路面雪氷破砕転圧装置自身に油圧発生装置やエンジンを搭載して駆動力を自己発生型とする駆動方法なども考えられるため、本路面雪氷破砕転圧装置の駆動方法は限定しない。 The driving method of this road snow and ice crushing compaction device is assumed to be a drive method that utilizes the hydraulic pressure generated by a hydraulic pressure generating device mounted on the attached vehicle, such as a hydraulic motor or hydraulic cylinder. The driving method of the present road surface snow and ice crushing compaction device is not limited, as it is also possible to consider a driving method in which the device is equipped with a hydraulic generator or an engine to self-generate the driving force.

図１～３に示した実施例１～２は、本発明の実施例に過ぎず、本路面雪氷破砕転圧装置の構造・形状・大きさ、破砕装置１や敷均し装置２や転圧装置３の構造・形状・大きさ・取付位置、起振装置５や予圧板６や加熱装置７や散布装置８や保温カバー９や安全カバー１０の有無・構造・形状・大きさ・取付位置、等を限定するものではない。 Embodiments 1 to 2 shown in FIGS. 1 to 3 are merely examples of the present invention, and the structure, shape, and size of the present road surface snow and ice crushing compaction device, crushing device 1, leveling device 2, compaction device, etc. The structure, shape, size, and mounting position of the device 3; presence/absence, structure, shape, size, and mounting position of the vibration device 5, preload plate 6, heating device 7, spraying device 8, heat insulation cover 9, and safety cover 10; It is not limited to the following.

本路面雪氷破砕転圧装置での雪氷処理では、一般的な除雪機械での除雪のように処理する雪氷の移動先を考慮する必要がなく、本路面雪氷破砕転圧装置が通行した部分以外への影響がほとんどないことから、本路面雪氷破砕転圧装置を搭載する車両や移動体は、一般的な除雪機械と比較して運転難易度が低く自動運転化への適応性も高い。昨今における、除雪従事者・除雪技術者不足、労働力高齢化、過酷労働忌避、などの観点からも、除雪機械の運転難易度が低いことや自動運転化への適応性が高いことは有益だと考えられる。 In snow and ice processing using this road snow and ice crushing compaction device, there is no need to consider the destination of the snow and ice that is being moved, unlike snow removal with a general snow removal machine. Because there is almost no effect on snow and ice, vehicles and moving objects equipped with this road surface snow and ice crushing compaction device are less difficult to drive than general snow removal machines, and are highly adaptable to automated driving. In light of the recent shortage of snow removal workers and snow removal engineers, the aging of the workforce, and the avoidance of harsh labor, it is beneficial for snow removal machines to be less difficult to operate and highly adaptable to automated driving. it is conceivable that.

１ 破砕装置
２ 敷均し装置
３ 転圧装置
４ 転圧板
５ 起振装置
６ 予圧板
７ 加熱装置
８ 散布装置
９ 保温カバー
１０ 安全カバー 1 Crushing device 2 Leveling device 3 Rolling device 4 Rolling plate 5 Vibration device 6 Preload plate 7 Heating device 8 Spreading device 9 Heat insulation cover 10 Safety cover

Claims (2)

車両や移動体に設置する機械装置であって、動的構造により路面上の雪氷を破砕する破砕装置（１）と、破砕した雪氷を敷きならす敷均し装置（２）と、敷きならした雪氷を転圧する転圧装置（３）と、を備えることを特徴とする、路面雪氷破砕転圧装置。 Mechanical devices installed on vehicles and moving objects include a crushing device (1) that crushes snow and ice on the road surface using a dynamic structure, a leveling device (2) that spreads the crushed snow and ice, and a device that crushes snow and ice that has been spread. A compaction device for crushing road snow and ice, comprising: a compaction device (3) for compacting. 路面上の雪氷や転圧装置（３）に対して加熱を行う加熱装置（７）、または、路面上の雪氷に対して水・湯・薬液・塩・硫安・薬材などを散布する散布装置（８）、を備えることを特徴とする、請求項１に示す路面雪氷破砕転圧装置。 A heating device (7) that heats the snow and ice on the road surface and the compaction device (3), or a spraying device that sprays water, hot water, chemical solutions, salt, ammonium sulfate, chemicals, etc. on the snow and ice on the road surface. (8) The road surface snow and ice crushing compaction device according to claim 1, characterized by comprising: (8).
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05247914A (en) * 1991-03-15 1993-09-24 Sugino Mach Ltd High pressure water jet service vehicle
JPH11100819A (en) * 1990-06-23 1999-04-13 Sawada Juki Doboku Kk Cut-removing device for frozen road surface
JP2006274569A (en) * 2005-03-28 2006-10-12 Yokohama Rubber Co Ltd:The Snow covered road surface maintenance device
JP2011094367A (en) * 2009-10-29 2011-05-12 Yonehisa Kayane Snow compressing device
JP2014037686A (en) * 2012-08-13 2014-02-27 Ohara Tekkosho:Kk Snow compressing device
JP2015071871A (en) * 2013-10-02 2015-04-16 博 小野寺 Self-propelled type radiant heating device and its radiant heating method
JP2019120088A (en) * 2018-01-10 2019-07-22 株式会社Ｄｉｅ Ｋｒａｆｔ Snow-melting system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11100819A (en) * 1990-06-23 1999-04-13 Sawada Juki Doboku Kk Cut-removing device for frozen road surface
JPH05247914A (en) * 1991-03-15 1993-09-24 Sugino Mach Ltd High pressure water jet service vehicle
JP2006274569A (en) * 2005-03-28 2006-10-12 Yokohama Rubber Co Ltd:The Snow covered road surface maintenance device
JP2011094367A (en) * 2009-10-29 2011-05-12 Yonehisa Kayane Snow compressing device
JP2014037686A (en) * 2012-08-13 2014-02-27 Ohara Tekkosho:Kk Snow compressing device
JP2015071871A (en) * 2013-10-02 2015-04-16 博 小野寺 Self-propelled type radiant heating device and its radiant heating method
JP2019120088A (en) * 2018-01-10 2019-07-22 株式会社Ｄｉｅ Ｋｒａｆｔ Snow-melting system

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