JP5190723B2 - Suspension work vehicle - Google Patents

Suspension work vehicle Download PDF

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JP5190723B2
JP5190723B2 JP2006322564A JP2006322564A JP5190723B2 JP 5190723 B2 JP5190723 B2 JP 5190723B2 JP 2006322564 A JP2006322564 A JP 2006322564A JP 2006322564 A JP2006322564 A JP 2006322564A JP 5190723 B2 JP5190723 B2 JP 5190723B2
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pressure water
nozzle device
spray nozzle
water spray
right direction
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JP2008111326A (en
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幸弘 樋口
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幸弘 樋口
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Description

本発明は、路面等の表面をはつり作業するところのはつり作業車に関する。  The present invention relates to a suspension work vehicle that performs a suspension work on a surface such as a road surface.

道路の路面の傷みを補修する場合、例えば、表面の塗装層を剥離して新たな塗装層を敷設したり、或いは、所定の深さに表面を削り、しかる後に、表面補修の工事を行うものである。
このような作業の場合、表面を切削（はつり）することになる。こうしたはつり作業は、大別すると、ロータリーカッターを用いた機械的な切削か、高圧水を噴射する高圧水噴射ノズル装置を用いて行われる。When repairing damage to the road surface of the road, for example, the surface coating layer is peeled off and a new coating layer is laid, or the surface is shaved to a predetermined depth, and then the surface repair work is performed It is.
In such an operation, the surface is cut (suspended). Such a suspending operation is roughly classified into mechanical cutting using a rotary cutter or a high-pressure water injection nozzle device that injects high-pressure water.

何れの場合であっても、作業車は、はつり作業の反力をうけるもので、これを抑えるために、所定の重量を持つ必要があった。そして、高圧水噴射ノズル装置を用いる場合にあっては、これまでは、高圧水噴射ノズルの横移動（機体の左右方向）を、所定のストロ−クで行うように構成されているだけであった。
上記のはつりの技術として、次の文献を挙げることができる。
特開２００３−２５３６１９。 特開２００４−２７６２４。 特開２００１−２７１３１０。 In any case, the work vehicle is subjected to the reaction force of the hanging work, and it is necessary to have a predetermined weight in order to suppress this. In the case of using the high-pressure water injection nozzle device, until now, the high-pressure water injection nozzle has only been configured to perform lateral movement (the left-right direction of the machine body) with a predetermined stroke. It was.
The following documents can be cited as the above-mentioned fishing techniques.
JP2003-253619. JP2004-27624. JP-A-2001-271310.

上記従来技術においては、ロータリーカッター或いは高圧水噴射ノズル装置（はつり装置）を、走行機体に搭載するに、それぞれ高さ調節を行うことができるが、はつり装置自体は、機体に一体的に搭載されていた。
そのため、機体の側が路面の凹凸に乗り上げたり、傾斜面にさしかかると、はつり装置の対地高さが変化し、予定された正確な切削深さを得られなくなるという問題があった。In the above prior art, the height can be adjusted to mount the rotary cutter or the high-pressure water spray nozzle device (hanging device) on the traveling machine body. However, the hanging device itself is integrally mounted on the machine body. It was.
For this reason, when the aircraft body rides on the road surface unevenness or approaches the inclined surface, the height of the suspension device to the ground changes, and there is a problem that it is impossible to obtain a predetermined accurate cutting depth.

本発明は、高圧水噴射ノズル装置の対地姿勢を、路面条件に応じて修正できるようにし、所期の深さのはつりを行い得るようにすることを目的とする。  An object of the present invention is to make it possible to correct the ground posture of a high-pressure water spray nozzle device in accordance with road surface conditions and to perform a desired depth change.

本発明にかかるはつり作業車は、上記目的を達成するために、
自走機能を備え、高圧水噴射ノズル装置（４）を、機体（１）の左右方向に移動させて高圧水を噴射し、はつりを行うように構成されたはつり作業車であって、
作業車の機体（１）の前部に、前記高圧水噴射ノズル装置（４）を保持する保持フレーム（３）を、機体（１）の左右方向軸心（Ｐ１）周りに前後傾動自在に搭載し、
前記保持フレーム（３）を前後傾動させる前後傾動用油圧シリンダー（５）を機体（１）と該保持フレーム（３）との間に設け、該前後傾動用油圧シリンダー（５）の伸縮によって、前記高圧水噴射ノズル装置（４）を前後傾動させて前記高圧水噴射ノズル装置（４）の対地姿勢を調節できるように構成し、
前記高圧水噴射ノズル装置（４）の機体（１）の左右端側を上下に変位させるように、前記保持フレーム（３）と、前記高圧水噴射ノズル装置（４）とが、機体（１）の左右方向で間隔を隔てて、一対の両端上下用油圧シリンダー（７）で夫々連結支持されており、その連結は、その一対の両端上下用油圧シリンダー（７）の各上下端部において、機体（１）の前後方向の軸心（Ｐ２）の周りに回動可能とした連結であり、その一方の両端上下用油圧シリンダー（７）が操作されれば、前記高圧水噴射ノズル装置（４）の一端が上昇又は下降し、他方の両端上下用油圧シリンダー（７）が操作されれば、前記高圧水噴射ノズル装置（４）の一端が上昇又は下降するように構成され、
前記高圧水噴射ノズル装置（４）には、機体（１）の左右方向において作動ストロ−クを調節するリミッタースイッチ（６，６）が、位置変更自在に設けられ、
更に、ノズル部材（４Ａ）を備えた前記高圧水噴射ノズル装置（４）には、前記ノズル部材（４Ａ）を下向きに通過させ、機体（１）の左右方向への移動を許容しながら、噴射水が跳ね返らないようにするゴムシート（４Ｂ）が張設され、該ゴムシート（４Ｂ）は、機体（１）の左右方向への１本の長いスリットと、前後方向への多数の短いスリットを備えており、
また、前記ノズル部材（４Ａ）の左右方向の移動軌跡に対応して、その前後位置に、カバー（４Ｃ）が設けられている、
ことを特徴とする。In order to achieve the above object, the suspension work vehicle according to the present invention provides:
A suspension work vehicle having a self-propelled function, configured to inject high-pressure water by moving the high-pressure water injection nozzle device (4) in the left-right direction of the airframe (1),
A holding frame (3) for holding the high-pressure water spray nozzle device (4) is mounted on the front part of the machine body (1) of the work vehicle so as to be tiltable back and forth around the horizontal axis (P1) of the machine body (1). And
A front / rear tilting hydraulic cylinder (5) for tilting the holding frame (3) back and forth is provided between the airframe (1) and the holding frame (3). The high-pressure water spray nozzle device (4) is configured to tilt forward and backward to adjust the ground posture of the high-pressure water spray nozzle device (4),
The holding frame (3) and the high-pressure water spray nozzle device (4) are configured to displace the left and right ends of the body (1) of the high-pressure water spray nozzle device (4) up and down. Are connected and supported by a pair of upper and lower hydraulic cylinders (7) spaced apart from each other in the left-right direction, and the connection is made between the upper and lower ends of the pair of upper and lower hydraulic cylinders (7). If the connection is made to be rotatable around the axial center (P2) of (1) in the front-rear direction, and the hydraulic cylinder (7) at both ends is operated, the high-pressure water injection nozzle device (4) One end of the high-pressure water injection nozzle device (4) is raised or lowered when one end of the high-pressure water injection nozzle device (4) is operated.
The high-pressure water spray nozzle device (4) is provided with limiter switches (6, 6) for adjusting the operation stroke in the left-right direction of the machine body (1), the position of which can be changed.
Further, the high-pressure water spray nozzle device (4) provided with the nozzle member (4A) allows the nozzle member (4A) to pass downward, while allowing the airframe (1) to move in the left-right direction. A rubber sheet (4B) that prevents water from splashing is stretched, and the rubber sheet (4B) is composed of one long slit in the left-right direction of the machine body (1) and a number of short slits in the front-rear direction. With
Further, a cover (4C) is provided at the front-rear position corresponding to the movement trajectory in the left-right direction of the nozzle member (4A).
It is characterized by that.

本発明に言う高圧水噴射ノズル装置は、ノズル装置を作業車に搭載しているが、高圧ポンプは、この作業車に搭載していても、或いは、別途ポンプ車の方に備えるようにしていても良いものである。
本発明に言う機体の前部とは、走行方向を指すものではなく、機体本来の走行方向（運転席からみた前部）という意味であり、はつり作業においては、前、後進何れの方向でも作業を行うことが多々ある。The high-pressure water injection nozzle device according to the present invention has the nozzle device mounted on the work vehicle. However, the high-pressure pump may be installed on the work vehicle or separately on the pump vehicle. Is also good.
The front part of the aircraft referred to in the present invention does not indicate the traveling direction, but means the original traveling direction of the aircraft (the front as viewed from the driver's seat). There are many things to do.

本発明によれば、路面のはつり作業において、高圧水噴射ノズル装置の対地姿勢を、路面条件に応じて修正できるようにし、所期の深さのはつりを行い得ると共にはつり作業における噴射水の跳ね返り、はつり片の飛散を防止できる利点がある。According to the present invention, it is possible to correct the ground posture of the high-pressure water spray nozzle device in accordance with the road surface condition in the road surface lifting work , and to perform the desired depth of the water splash and the splashing of the spray water in the fishing work. , Has the advantage of preventing the splash pieces from scattering .

本発明において、前記高圧水噴射ノズル装置４の機体１の左右端側を上下に変位させるように、両端上下用油圧シリンダー７を設けてあるのが好ましい。
このように、前記高圧水噴射ノズル装置４の機体１の左右端側を上下に変位させることができるので、道路の左右側において凹凸乃至傾斜が存在した場合に、高圧水噴射ノズル装置４の左右端を上下に位置調整することで、所期設定のはつり深さに対応できる。
従って、はつり進行方向において、高圧水噴射ノズル装置４を、前傾度の調整と左右端の上下位置調整とによって、これまでには得られなかった、はつり作用を行い得る。In the present invention, it is preferable to provide both ends up and down hydraulic cylinders 7 so that the left and right ends of the body 1 of the high pressure water spray nozzle device 4 are displaced up and down.
Thus, since the left and right end sides of the body 1 of the high-pressure water injection nozzle device 4 can be displaced up and down, the left and right sides of the high-pressure water injection nozzle device 4 can be used when there is unevenness or inclination on the left and right sides of the road. By adjusting the edge up and down, the desired setting can be adapted to the suspension depth.
Therefore, the high pressure water injection nozzle device 4 can perform a suspending action that has not been obtained so far by adjusting the forward inclination and adjusting the vertical positions of the left and right ends in the direction of suspending.

また、前記高圧水噴射ノズル装置４には、機体１の左右方向において作動ストロ−クを調節するリミッタースイッチ６，６が、位置変更自在に設けられていることが好ましい。
このように、高圧水噴射ノズル装置４を、機体１の左右方向において、そのストローク位置を任意に設定できることとなり、はつり所要の幅を容易に設定できて、上記路面条件変化への対応を合せて、より優れたはつり作用を行い得る。The high-pressure water spray nozzle device 4 is preferably provided with limiter switches 6 and 6 for adjusting the operation stroke in the left-right direction of the machine body 1 so that the position can be changed.
In this way, the stroke position of the high-pressure water injection nozzle device 4 can be arbitrarily set in the left-right direction of the machine body 1, the required width can be easily set, and the response to the change in the road surface condition can be adjusted. , Better suspension action can be performed.

本発明にかかるはつり作業車の好適実施例について、図１〜図３に基づいて以下詳述する。
このはつり作業車は、エンジンを搭載し、クローラ型の自走機能を備え、高圧水噴射ノズル装置４を、機体１の左右方向に移動させて高圧水を噴射し、はつりを行うように構成されたものである。このような高圧水噴射型のはつり作業車そのものは公知である。A preferred embodiment of a suspension work vehicle according to the present invention will be described in detail below with reference to FIGS.
This suspension work vehicle is equipped with an engine, has a crawler-type self-propelled function, and is configured to move the high-pressure water injection nozzle device 4 in the left-right direction of the fuselage 1 to inject high-pressure water and perform the suspension. It is a thing. Such a high-pressure water jet type suspension work vehicle itself is known.

前記作業車の機体１の後部には、操縦者が立ち姿で乗るステップ１Ａが設けられ、その前側に、操作パネル１Ｂと、操縦ハンドル１Ｃと、油圧シリンダーを操作する操作レバー１Ｄが設けられている。
前記機体１の中央には、動力源としてエンジンが搭載されている。そして、機体１の前部に、高圧水噴射ノズル装置４を保持する保持フレーム３を、機体１の左右方向軸心（横軸）Ｐ１周りに前後傾動自在に搭載してある。At the rear of the body 1 of the work vehicle, there is provided a step 1A where the operator rides in a standing position, and an operation panel 1B, a steering handle 1C, and an operation lever 1D for operating the hydraulic cylinder are provided on the front side. .
In the center of the airframe 1, an engine is mounted as a power source. A holding frame 3 that holds the high-pressure water spray nozzle device 4 is mounted on the front portion of the machine body 1 so as to be tiltable back and forth around the horizontal axis (horizontal axis) P1 of the machine body 1.

更に、前記保持フレーム３を前後傾動させる前後傾動用油圧シリンダー５が、機体１と該保持フレーム３との間に設けられ、該前後傾動用油圧シリンダー５の伸縮によって、前記高圧水噴射ノズル装置４を前後傾動させ、以って、高圧水噴射ノズル装置４の対地姿勢を調節できるように構成してある。前記前後傾動用油圧シリンダー５への油圧ポンプは、機体１に備えられている。  Further, a forward / backward tilting hydraulic cylinder 5 for tilting the holding frame 3 back and forth is provided between the machine body 1 and the holding frame 3, and the high pressure water spray nozzle device 4 is expanded and contracted by the forward / backward tilting hydraulic cylinder 5. Is tilted forward and backward so that the ground posture of the high-pressure water spray nozzle device 4 can be adjusted. The machine body 1 is provided with a hydraulic pump to the hydraulic cylinder 5 for tilting forward and backward.

また、前記高圧水噴射ノズル装置４の機体１の左右端側を上下に変位させるように、一対の両端上下用油圧シリンダー７を設けてある。その一方の両端上下用油圧シリンダー７が操作（伸縮）されれば、前記高圧水噴射ノズル装置４の一端が上昇又は下降し、他方の両端上下用油圧シリンダー７が操作されれば、前記高圧水噴射ノズル装置４の一端が上昇又は下降するように、保持フレーム３と、高圧水噴射ノズル装置４とを、機体１の左右方向で間隔を隔てて、一対の両端上下用油圧シリンダー７で夫々連結支持している。この際、両者の連結は、一対の両端上下用油圧シリンダー７の各上下端部において、機体１の前後方向の軸心Ｐ２の周りに回動可能とした連結である。この連結によって、一対の両端上下用油圧シリンダー７が夫々伸縮すると、その各連結軸を中心として高圧水噴射ノズル装置４の両端側が上下に変位する。  Also, a pair of upper and lower hydraulic cylinders 7 are provided so that the left and right ends of the body 1 of the high-pressure water spray nozzle device 4 are displaced vertically. If one of the both ends up / down hydraulic cylinder 7 is operated (expanded / contracted), one end of the high-pressure water injection nozzle device 4 is raised or lowered, and if the other both ends up / down hydraulic cylinder 7 is operated, the high-pressure water The holding frame 3 and the high-pressure water spray nozzle device 4 are connected to each other by a pair of upper and lower hydraulic cylinders 7 at intervals in the left-right direction of the machine body 1 so that one end of the spray nozzle device 4 is raised or lowered. I support it. At this time, the connection between the two is a connection that is rotatable around the axial center P <b> 2 in the front-rear direction of the body 1 at the upper and lower ends of the pair of upper and lower hydraulic cylinders 7. When the pair of both ends vertical hydraulic cylinders 7 expands and contracts by this connection, the both ends of the high-pressure water spray nozzle device 4 are displaced up and down around each connecting shaft.

また、前記高圧水噴射ノズル装置４には、路面に向けて高圧水を噴射するノズル部材４Ａが、機体１の左右方向にスライド自在に設けられており、このノズル部材４Ａの機体１の左右方向における作動範囲、即ち、作動ストロ−クは、この高圧水噴射ノズル装置４に設けたリミッタースイッチ６，６により決定される。これらのリミッタースイッチ６，６は、その位置を機体１の左右方向において変更自在とされている。この実施例では、因みに、図中３に仮想線で示す最大の作動ストロ−ク幅Ｌは、１７２０ｍｍに設定されており、また、この高圧水噴射ノズル装置４の幅は、２２００ｍｍである。また、前の高圧水噴射ノズル装置４の先端から、後部のステップ１Ａまでは、３５００ｍｍとしている。  Further, the high-pressure water injection nozzle device 4 is provided with a nozzle member 4A for injecting high-pressure water toward the road surface so as to be slidable in the left-right direction of the body 1, and the left-right direction of the body 1 of the nozzle member 4A. The operating range, i.e., the operating stroke is determined by the limiter switches 6 and 6 provided in the high-pressure water jet nozzle device 4. The positions of the limiter switches 6 and 6 are freely changeable in the left-right direction of the body 1. In this embodiment, the maximum operating stroke width L indicated by the phantom line in FIG. 3 is set to 1720 mm, and the width of the high-pressure water spray nozzle device 4 is 2200 mm. Moreover, it is set to 3500 mm from the front-end | tip of the front high pressure water injection nozzle apparatus 4 to step 1A of the rear part.

前記高圧水噴射ノズル装置４には、前記ノズル部材４Ａを下向きに通過させ、機体１の左右方向への移動を許容しながら、噴射水が跳ね返らないようにするゴムシート４Ｂ（機体の左右方向への１本の長いスリットと、前後方向への多数の短いスリットを備える）が張設されている。また、前記ノズル部材４Ａの左右方向の移動軌跡に対応して、その前後位置に、カバー４Ｃが設けられている。
前記ノズル部材４Ａには、高圧水を導くホース４Ｄが接続されているが、このホース４Ｄへ高圧水を供給するポンプは、ここでは、図外のポンプ車に設けられている。しかし、前記機体１にポンプを搭載するようにしてもよい。The high-pressure water spray nozzle device 4 has a rubber sheet 4B (the left-right direction of the fuselage) that passes the nozzle member 4A downward and allows the jet 1 to move in the left-right direction while preventing the jet water from splashing. One long slit and a number of short slits in the front-rear direction). Further, a cover 4C is provided at the front and rear positions corresponding to the movement trajectory of the nozzle member 4A in the left-right direction.
The nozzle member 4A is connected to a hose 4D that guides high-pressure water. A pump that supplies high-pressure water to the hose 4D is provided in a pump vehicle (not shown). However, a pump may be mounted on the body 1.

従って、はつり作業においては、高圧水噴射ノズル装置４の対地高さを初期設定した状態で作業進行するが、路面条件の変化に応じて、操縦者が操作レバー１Ｄを操作して、保持フレーム３を前傾或いは後傾させ、高圧水噴射ノズル装置４の対地高さを修正しながら所期のはつり深さを得るように出来る。また、同様に、操作レバー１Ｄの操作によって、高圧水噴射ノズル装置４の左右端の対地高さを調節することもできるのである。  Accordingly, in the suspending operation, the operation proceeds with the ground height of the high-pressure water injection nozzle device 4 initially set. However, the operator operates the operation lever 1D in accordance with the change in the road surface condition to operate the holding frame 3. Can be tilted forward or backward to correct the height of the high-pressure water spray nozzle device 4 with respect to the ground while obtaining the desired suspension depth. Similarly, the height to the ground at the left and right ends of the high-pressure water spray nozzle device 4 can be adjusted by operating the operation lever 1D.

本発明は、路面のはつり作業として、種々の路面条件変化に応じて、はつりの所期深さを得ることが可能であり、その応用範囲は広いものである。  According to the present invention, the desired depth of the suspension can be obtained in accordance with various changes in the road surface condition as the suspension operation of the road surface, and its application range is wide.

本発明に係るはつり作業車の側面図である。1 is a side view of a suspension work vehicle according to the present invention. 本発明に係るはつり作業車の平面図である。1 is a plan view of a suspension work vehicle according to the present invention. 本発明に係るはつり作業車の正面図である。1 is a front view of a suspension work vehicle according to the present invention.

符号の説明Explanation of symbols

１：機体
３：保持フレーム
４：高圧水噴射ノズル装置
５：前後傾動用油圧シリンダー
６：リミットスイッチ
７：両端上下用油圧シリンダー
Ｐ１：左右方向軸心1: Airframe 3: Holding frame 4: High-pressure water injection nozzle device 5: Hydraulic cylinder for tilting forward and backward 6: Limit switch 7: Hydraulic cylinder for both ends up and down P1: Horizontal axis

Claims (1)

自走機能を備え、高圧水噴射ノズル装置（４）を、機体（１）の左右方向に移動させて高圧水を噴射し、はつりを行うように構成されたはつり作業車であって、
作業車の機体（１）の前部に、前記高圧水噴射ノズル装置（４）を保持する保持フレーム（３）を、機体（１）の左右方向軸心（Ｐ１）周りに前後傾動自在に搭載し、
前記保持フレーム（３）を前後傾動させる前後傾動用油圧シリンダー（５）を機体（１）と該保持フレーム（３）との間に設け、該前後傾動用油圧シリンダー（５）の伸縮によって、前記高圧水噴射ノズル装置（４）を前後傾動させて前記高圧水噴射ノズル装置（４）の対地姿勢を調節できるように構成し、
前記高圧水噴射ノズル装置（４）の機体（１）の左右端側を上下に変位させるように、前記保持フレーム（３）と、前記高圧水噴射ノズル装置（４）とが、機体（１）の左右方向で間隔を隔てて、一対の両端上下用油圧シリンダー（７）で夫々連結支持されており、その連結は、その一対の両端上下用油圧シリンダー（７）の各上下端部において、機体（１）の前後方向の軸心（Ｐ２）の周りに回動可能とした連結であり、その一方の両端上下用油圧シリンダー（７）が操作されれば、前記高圧水噴射ノズル装置（４）の一端が上昇又は下降し、他方の両端上下用油圧シリンダー（７）が操作されれば、前記高圧水噴射ノズル装置（４）の一端が上昇又は下降するように構成され、
前記高圧水噴射ノズル装置（４）には、機体（１）の左右方向において作動ストロ−クを調節するリミッタースイッチ（６，６）が、位置変更自在に設けられ、
更に、ノズル部材（４Ａ）を備えた前記高圧水噴射ノズル装置（４）には、前記ノズル部材（４Ａ）を下向きに通過させ、機体（１）の左右方向への移動を許容しながら、噴射水が跳ね返らないようにするゴムシート（４Ｂ）が張設され、該ゴムシート（４Ｂ）は、機体（１）の左右方向への１本の長いスリットと、前後方向への多数の短いスリットを備えており、
また、前記ノズル部材（４Ａ）の左右方向の移動軌跡に対応して、その前後位置に、カバー（４Ｃ）が設けられている、
ことを特徴とするはつり作業車。A suspension work vehicle having a self-propelled function, configured to inject high-pressure water by moving the high-pressure water injection nozzle device (4) in the left-right direction of the airframe (1),
A holding frame (3) for holding the high-pressure water spray nozzle device (4) is mounted on the front part of the machine body (1) of the work vehicle so as to be tiltable back and forth around the horizontal axis (P1) of the machine body (1). And
A front / rear tilting hydraulic cylinder (5) for tilting the holding frame (3) back and forth is provided between the airframe (1) and the holding frame (3). The high-pressure water spray nozzle device (4) is configured to tilt forward and backward to adjust the ground posture of the high-pressure water spray nozzle device (4),
The holding frame (3) and the high-pressure water spray nozzle device (4) are configured to displace the left and right ends of the body (1) of the high-pressure water spray nozzle device (4) up and down. Are connected and supported by a pair of upper and lower hydraulic cylinders (7) spaced apart from each other in the left-right direction, and the connection is made between the upper and lower ends of the pair of upper and lower hydraulic cylinders (7). If the connection is made to be rotatable around the axial center (P2) of (1) in the front-rear direction, and the hydraulic cylinder (7) at both ends is operated, the high-pressure water injection nozzle device (4) One end of the high-pressure water injection nozzle device (4) is raised or lowered when one end of the high-pressure water injection nozzle device (4) is operated.
The high-pressure water spray nozzle device (4) is provided with limiter switches (6, 6) for adjusting the operation stroke in the left-right direction of the machine body (1), the position of which can be changed.
Further, the high-pressure water spray nozzle device (4) provided with the nozzle member (4A) allows the nozzle member (4A) to pass downward, while allowing the airframe (1) to move in the left-right direction. A rubber sheet (4B) that prevents water from splashing is stretched, and the rubber sheet (4B) is composed of one long slit in the left-right direction of the machine body (1) and a number of short slits in the front-rear direction. With
Further, a cover (4C) is provided at the front-rear position corresponding to the movement trajectory in the left-right direction of the nozzle member (4A).
A suspension work vehicle characterized by that.
JP2006322564A 2006-10-30 2006-10-30 Suspension work vehicle Expired - Fee Related JP5190723B2 (en)

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JP7517606B2 (en) 2021-06-09 2024-07-17 三菱電機株式会社 Optical semiconductor device inspection equipment

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KR100986701B1 (en) * 2008-05-30 2010-10-08 김조순 A Apparatus for removing impurities with minute dust of cutting surface for road of asphalt concrete pavement
CN106049245B (en) * 2016-08-15 2018-04-10 山东一路工程装备科技有限公司 Environment-friendly type road surface is roughened processing equipment
CN114622467B (en) * 2022-04-07 2024-02-27 河北光太路桥工程集团有限公司 Pavement repairing device and method for construction

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JP3368553B2 (en) * 1997-07-04 2003-01-20 株式会社スギノマシン Hanging device

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* Cited by examiner, † Cited by third party
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JP7517606B2 (en) 2021-06-09 2024-07-17 三菱電機株式会社 Optical semiconductor device inspection equipment

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