JPH10195918A - Method and device for raking and carrying out polluted sand, etc. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply carry out elimination work of polluted sand in a slow filter basin, etc., with high degree of accuracy while closely connecting with scraper, raker and conveyor separately and, at the same time, to provide a raking and carrying out method and a device for preventing the excessive suppression of the ground to maintain its filter performance. SOLUTION: A raking and carrying out method of polluted sand W is so constituted that a scraper 1 is traveled on the ground in order to eliminate polluted sand W in such as filter basin, etc., and after the polluted sand on the ground in raked up to one side of raking site W2 to form a raking line W1 in a state of filling while raking the polluted sand W at specific width, raker 2 and conveyor 3 are together traveled on the raked site W2, the polluted sand, etc., of the raking line W1 are raked up from the ground with the raker 2 and, at the same time, they are conveyed backward and they are stored in the conveyor 3 in the terminal section and are carried out to the outside of the raked site W2. Then, a raking and taking out device is constituted of the self-propelling type scraper 1 forming the raking line W1 by raking up the polluted sand, etc., on the ground at specific width with a scraping device 1a, the self-propelling type raker 2 for raking up the raking line W1 with a raking device 2a to covey it backward and upward to carry out, and the conveyor 3 for storing the polluted sand, etc., discharged out from the raker 2 into a container 31.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、上水道の濾過に使
用される緩速濾過池等の地表の汚砂等を掻取って掻寄せ
ながら掻上げ搬送し、掻取跡地外に移送搬出する汚砂等
の掻取り搬出方法及び装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dirt for scraping and transporting soil sand or the like on the surface of a slow filtration pond or the like used for filtration of waterworks while scraping it up, and transporting it to the outside of the scraping site. The present invention relates to a method and an apparatus for scraping and carrying out sand and the like.

【０００２】[0002]

【従来の技術】一般に、上記のような上水道用の濾過池
はコンクリート製の周壁で囲繞された内部において、下
層に粗い砂礫層と上層に細粒の砂層を積層した濾過層に
施工されており、該濾過層は浄水処理に伴い表層に汚砂
層を生ずるので、この汚砂等を定期的に所定の厚さだけ
掻取って濾過池外に搬出除去し、新たな表層を露出させ
て浄水処理を継続させるようにしている。従来、上記の
ような濾過池における汚砂等の除去作業は、実開平６ー
３０２４０号公報に示される構成の濾過砂掻取装置によ
って行うことが公知である。この濾過砂掻取装置は、ク
ローラ式の走行装置を有する機台上に操縦部と汚砂を収
容する容器を設置すると共に、該容器に地表の汚砂を掻
取って搬送供給する掻取装置（掻寄装置）と揚砂装置
（掻上装置）とを一体的に構成してなる、作業部を機台
の前部に昇降可能に支架して構成されている。2. Description of the Related Art In general, such a filter for water supply as described above is installed in a filter layer having a coarse gravel layer as a lower layer and a fine sand layer as an upper layer in an interior surrounded by a concrete peripheral wall. Since the filtration layer forms a soil layer on the surface with the water treatment, the soil is periodically scraped off to a predetermined thickness, removed to the outside of the filtration pond and removed, and a new surface layer is exposed to purify the water. To continue. Conventionally, it is known that the above-mentioned operation of removing contaminated sand and the like in a filtration pond is performed by a filtration sand scraping device having a configuration disclosed in Japanese Utility Model Application Laid-Open No. 6-30240. This filter sand scraper is provided with a control unit and a container for storing the sand on a machine base having a crawler-type traveling unit, and a scraper for scraping and transporting the surface soil to the container. (Working device) and a sand-lifting device (raising device) are integrally formed, and the working unit is supported on the front of the machine base so as to be able to move up and down.

【０００３】[0003]

【発明が解決しようとする課題】然し、上記公報の構成
による濾過砂掻取装置は、クローラ式の走行装置を有す
る機台に、掻寄装置と掻上装置とで構成され重量構造物
を支架すると共に多量の汚砂を収容する容器を一体的に
並設していることにより、構成が複雑で機体が大型にな
ると共に機体重量を重くし、さらに作業中に順次収容さ
れる汚砂の重量が加わって機体が次第に重くなるので、
上記濾過池の軟弱な地面を走行作業する際に機体が沈下
し汚砂の削り量が変化する。このため、掻取作業の削り
量の調節を頻繁に行う必要があり操作が煩雑であると共
に、容器内に満杯に収容した汚砂を掻取跡地外に舵取り
走行操作して移送搬出する際に、クローラ走行装置によ
って地表に深く大きな轍跡を残して乱したり、濾過層を
過大に鎮圧して濾過性能を損なわせる等の問題を有して
いる。また、上記の容器はあまり大きくすることができ
ないので供給された汚砂はすぐに満杯になり、その都度
掻寄作業を中断して汚砂の搬送排出作業を頻繁に行わな
ければならない等非能率な作業になる等の問題がある。However, the filter sand scraping device according to the above-mentioned publication is a device having a crawler type traveling device and a heavy structure comprising a scraping device and a scraping device. In addition, the container that accommodates a large amount of dirty sand is integrally arranged side by side, so the structure is complicated, the aircraft becomes large, the weight of the aircraft is increased, and the weight of the dirty sand that is sequentially stored during the work And the aircraft gradually becomes heavier,
When traveling on the soft ground of the filter pond, the airframe sinks and the amount of shaved sand changes. For this reason, it is necessary to frequently adjust the shaving amount of the scraping work, and the operation is complicated, and when transporting and transporting by carrying out steering operation of the dirty sand completely filled in the container outside the scraping trace area, However, there are problems such as disturbing the crawler traveling device while leaving a large rut mark deep on the ground surface, or impairing the filtration performance by excessively crushing the filtration layer. In addition, since the above-mentioned container cannot be made too large, the supplied contaminated sand quickly fills up, and every time the scraping work must be interrupted and the contaminated sand must be transported and discharged frequently. There is a problem such as complicated work.

【０００４】[0004]

【課題を解決するための手段】上記従来の問題点を解決
するために本発明の汚砂等の掻取り搬出方法及び装置
は、第１に、緩速濾過池等の地表の汚砂等を、専用の掻
寄機又は掻上機に設けた掻寄装置で所定巾に掻取りなが
ら掻寄せて盛土状の掻寄条を形成し、該掻寄条の汚砂等
を上記掻上機によって地面から掻上げる共に後方に搬送
し、その終端部から掻上機に追走させる搬出機に設けた
容器内に収容させて、収容された汚砂等を上記搬出機に
よって掻取跡地外に搬出する汚砂等の掻取り搬出方法と
したことを特徴としている。SUMMARY OF THE INVENTION In order to solve the above-mentioned conventional problems, the method and apparatus for scraping and discharging soil sand and the like according to the present invention firstly remove soil sand and the like on the ground surface such as a slow filtration pond. , A scraping device provided in a dedicated scraping machine or a scraping machine, scraping to a predetermined width while scraping to form an embankment-shaped scraping line, and the scraping sand or the like of the scraping line is scraped by the scraping machine. Raised from the ground and conveyed backward, from its end, stored in a container provided in an unloader that follows the scraper, and transports the stored contaminated sand, etc. out of the scraping site by the unloader. It is characterized by the method of scraping and carrying out dirty sand.

【０００５】第２に、掻上機は、掻寄条の両側から汚砂
等を内央部側に掻寄せながら後方上方に向けて搬送させ
ることを特徴としている。[0005] Secondly, the scraper is characterized in that contaminated sand and the like are conveyed upward and rearward while being scraped toward the inner central portion from both sides of the strip.

【０００６】第３に、掻寄装置によって地表の汚砂等を
所定巾で掻寄せて掻寄条を形成する自走型の掻寄機と、
前記掻寄条を掻上装置によって掻上げて後方上方に向け
て搬送し放出する自走型の掻上機と、該掻上機から放出
される汚砂等を容器に受けて収容する搬出機とで汚砂等
の掻取り搬出装置を構成すると共に、前記掻寄機及び掻
上機の掻寄装置を、横軸を中心に回転することにより地
表を削りながら掻寄せて掻寄条を形成する螺旋体で構成
すると共に、上記掻上機には掻寄装置に連設した掻上体
と該掻上体の後方に連設する搬送体等からなる掻上搬送
装置を設けた汚砂等の掻取り搬出装置とすることを特徴
としている。Thirdly, a self-propelled scraping machine that forms scraped strips by scraping the soil or the like on the ground with a predetermined width by a scraping device;
A self-propelled scraping machine that lifts the scraping strip by a scraping device, and conveys and discharges the rearward and upward direction, and an unloading machine that receives and stores the soil and the like discharged from the scraping device in a container. And a scraping and unloading device for dirty sand and the like, and the scraping device of the scraping machine and the scraping machine is rotated around a horizontal axis to scrape while shaving the ground surface to form a scraping strip. In addition to the above-described spiraling device, the scraping machine is provided with a scraping transport device including a scraping device connected to a scraping device and a transporting device connected to the rear of the scraping device. It is characterized as a scraping-out device.

【０００７】第４に、掻寄機及び掻上機並びに搬出機の
うち、少なくとも掻上機と搬出機間に追突を防止する追
突防止装置を設置することを特徴としている。Fourth, of the scraper, the scraper, and the unloader, a collision preventing device for preventing a collision between at least the scraper and the unloader is provided.

【０００８】[0008]

【発明の実施の形態】本発明の一実施形態を図面に基づ
いて説明する。図１に示すＫは上水道の濾過に使用され
る緩速濾過用の濾過池であり、この濾過池Ｋは図１
（Ａ）に示す如く周囲をコンクリート周壁Ｋ１によって
囲繞された内部に、在来の濾過工法によって下層に粗い
砂礫層と上層に細粒の砂層を積層して施工構成されてい
る。また、この濾過池Ｋは長期間の浄水処理に伴って表
層に生ずる汚砂層を、以下に詳述する掻取り搬出方法と
装置によって、該表層の汚砂等（以下汚砂という）Ｗを
所定の厚さ（１０〜３０ミリ前後）だけ掻取って濾過池
Ｋの適所に設置した搬出コンベア等の搬出装置Ｋ２部分
に搬出し、これによって汚砂Ｗを濾過池Ｋ外に搬出した
り、濾過池Ｋ内の適所の貯溜箇所Ｋ３に一時的に搬出集
積することにより、濾過池Ｋの汚砂層を除去し新たな表
層を露出させて浄水処理が良好に継続されるものであ
る。An embodiment of the present invention will be described with reference to the drawings. K shown in FIG. 1 is a filtration pond for slow filtration used for filtration of waterworks, and this filtration pond K is shown in FIG.
As shown in (A), the inside is surrounded by a concrete peripheral wall K1 and is constructed by laminating a coarse gravel layer on a lower layer and a fine sand layer on an upper layer by a conventional filtration method. In addition, the filter pond K removes a soil layer formed on the surface layer by a long-term water purification treatment by a scraping and carrying-out method and an apparatus described below in detail, and the surface sand and the like (hereinafter, referred to as dirty sand) W are predetermined. Of the thickness (about 10 to 30 mm), and carry it out to the carry-out device K2 such as a carry-out conveyer installed at an appropriate place of the filter pond K. Thereby, the contaminated sand W is carried out of the filter pond K or filtered. By temporarily carrying out and accumulating the water at the appropriate storage point K3 in the pond K, the soil layer of the filter pond K is removed, a new surface layer is exposed, and the water purification treatment can be favorably continued.

【０００９】上記濾過池Ｋに使用される本発明の掻取り
搬出装置は図（Ｂ）に示すように、掻寄装置１ａによっ
て地表の汚砂Ｗを所定の厚さに掻取って掻寄条Ｗ１を掻
取跡地Ｗ２に所定巾に掻寄せ形成する自走型の掻寄機１
と、該掻寄条Ｗ１を掻上搬送装置２ａによって掻上げて
後方上方に向けて搬送し排出する自走型の掻上機２と、
該掻上機２から排出される汚砂Ｗを容器３１に受けて収
容する搬出機３等の作業機からなり、これら各作業機は
次のような作業方法によって掻取り搬出作業を行うよう
にしている。As shown in FIG. 1B, the scraping and unloading device of the present invention used for the filtration pond K scrapes off the soil sand W on the ground to a predetermined thickness by a scraping device 1a. Self-propelled scraping machine 1 that scrapes W1 to scraping site W2 to a predetermined width
A self-propelled raking machine 2 that lifts up the scraping line W1 by a raking and conveying device 2a, and conveys and discharges the rearward and upward direction;
It comprises working machines such as an unloading machine 3 which receives the dirt W discharged from the scraping machine 2 in a container 31 and accommodates the same, and each of these working machines performs scraping and unloading work by the following working method. ing.

【００１０】即ち、上記濾過池Ｋの地面に先ず掻寄機１
を直進走行させ、表層の汚砂Ｗを所定に掻取りながら掻
取跡地Ｗ２巾の中央部に掻寄せて盛土状の掻寄条Ｗ１を
形成する。次いで、該掻取跡地Ｗ２に掻上機２と搬出機
３とを併走させて、上記掻寄条Ｗ１の汚砂Ｗを地面から
掻上げると共に後方に搬送し、該汚砂Ｗをその終端部に
おいて継送装置８を介し搬出機３の容器３１内に収容さ
せて、前記搬出装置Ｋ２或いは貯溜箇所Ｋ３等所定の場
所に搬出して排出することにより、濾過池Ｋの地面（濾
過層）に対する損壊を防止しながら汚砂Ｗを簡単且つ能
率よく除去すると共に、良好な浄水処理を連続的に継続
させるものである。That is, first, the scraping machine 1 is placed on the ground of the filter pond K.
Is run straight, and while scraping the surface sand S in a predetermined manner, it is raked to the center of the width of the scraping site W2 to form an embankment-like scraping strip W1. Next, the scraping machine 2 and the unloading machine 3 are moved in parallel to the scraping site W2 to scrape the soil W of the scraping strip W1 from the ground and transport the soil sand W rearward. In the above, the container is accommodated in the container 31 of the unloader 3 via the transfer device 8, and is unloaded to a predetermined place such as the unloading device K2 or the storage location K3 and discharged. The purpose is to easily and efficiently remove the soil sand W while preventing damage, and to continuously continue good water purification treatment.

【００１１】以下に上記装置の詳細構造について説明す
る。先ず掻寄機１を図２において説明すると、この掻寄
機１は前方にエンジン１Ｅを搭載し２輪駆動方式の車輪
１Ｓを備えて後方に二股状のハンドル１Ｈを延設してな
る走行機体１０と、該走行機体１０の後部に取付け支持
されて車輪１Ｓ，１Ｓの轍間隔より広巾な掻寄装置１ａ
とから構成している。上記掻寄装置１ａは、走行機体１
０から後方に延出した伝動ケース１０ａの両側に突設し
た伝動軸１０ｂ，１０ｂと、走行機体１０の後部に取付
枠１１ａで支持されて下方を解放した半円筒状のガバー
枠１１とで、汚砂Ｗを掻取って互いに内側に移送する左
右一対の螺旋体１２，１２を下向回転可能に軸支すると
共に、該螺旋体１２の後方全巾に地表に沿って巾方向に
土削り可能な刃先を形成した削り板１３を設け、該カバ
ー枠１１の中央部位における後壁を山形状に切欠させて
掻取り汚砂Ｗの排出口１５を開口形成し、且つカバー枠
１１の後方で排出口１５の両側で地面に沿って摺接する
ゲージ板（均し板）１６を高さ調節機構１７を介して取
付け構成している。The detailed structure of the above device will be described below. First, the scraper 1 will be described with reference to FIG. 2. The scraper 1 is a traveling machine body having an engine 1E mounted on the front side, two-wheel drive type wheels 1S, and a forked handle 1H extending rearward. And a scraping device 1a attached to and supported by a rear portion of the traveling body 10 and wider than the rut interval between the wheels 1S, 1S.
It is composed of The scraping device 1a includes a traveling machine 1
A transmission shaft 10b, 10b protruding from both sides of a transmission case 10a extending rearward from 0, and a semi-cylindrical gabber frame 11, which is supported by a mounting frame 11a at a rear portion of the traveling body 10 and is opened downward, A pair of left and right spirals 12 for scraping the sand W and transferring them inward to each other are supported rotatably downwardly, and a cutting edge capable of earth-cutting in the width direction along the ground surface over the entire width behind the spirals 12. Is formed, a rear wall at a central portion of the cover frame 11 is cut into a mountain shape to form an outlet 15 for the scraped sand W, and the discharge port 15 is provided behind the cover frame 11. A gauge plate (leveling plate) 16 that slides along the ground on both sides of the device is mounted via a height adjusting mechanism 17.

【００１２】以上のように構成した掻寄機１を濾過池Ｋ
の地面を走行させると、掻寄装置１ａは、左右の螺旋体
１２，１２が地表の汚砂Ｗを所定の深さで削りながら両
側から内側中央部に掻寄せて集合させ、集合された汚砂
Ｗを排出口１５から後方に排出させるとき外形を山形状
の盛土状に形成して、掻寄条Ｗ１を掻寄跡地Ｗ２の略中
央部に機体進行方向に沿って一条列に整然と成形する。
このとき、ゲージ板１６は地面に摺接滑走させているの
で、掻寄装置１ａを削り深さを適正とするように支持す
ると共に、削り板１３による掻取跡地Ｗ２の均し削りを
良好に遂行させて、該掻取跡地Ｗ２の表面を仕上りよく
綺麗な平坦面にすることができるものである。[0012] The scraping machine 1 constructed as described above is used for the filtration pond K.
When the left and right spiral bodies 12, 12 scrape the ground sand W at a predetermined depth, the scraping device 1a collects the collected sand by scraping it to the inner central portion from both sides. When the W is discharged backward from the discharge port 15, the outer shape is formed into a mountain-shaped embankment, and the scraping strip W1 is formed neatly at a substantially central portion of the scraping trace W2 in a single row along the machine body traveling direction.
At this time, since the gauge plate 16 is slid and slid on the ground, the scraping device 1a is supported so as to reduce the scraping depth to an appropriate value, and the scraping plate 13 is satisfactorily smoothed at the scraping site W2. By doing so, the surface of the scraping site W2 can be made a clean and flat surface with a good finish.

【００１３】この際、掻寄機１は走行機体１０が軽量な
歩行型であること、及び簡潔な構成を以て製作された掻
寄装置１ａが、広巾面を有するゲージ板１６で滑走支持
されるものであるから、機体装置の自重及び接地圧を可
及的に低減しながら、汚砂層で覆われた軟弱な地面の掻
寄走行に際し、機体を大きく沈下させて掻取性能を損な
わせたり、轍跡を深く形成して濾過層を損なわせ濾過池
Ｋの浄水性能の低下を生じさせること等を防止し、良好
な掻取作業を能率よく行うことができる等の特徴があ
る。At this time, the scraping machine 1 is such that the traveling body 10 is a lightweight walking type, and the scraping device 1a manufactured with a simple configuration is slidably supported by a gauge plate 16 having a wide surface. Therefore, while the weight of the fuselage device and the ground pressure are reduced as much as possible, when scraping on soft ground covered with a soil layer, the fuselage may be greatly lowered and the scraping performance may be impaired. There is such a feature that a trace is formed deeply to prevent the filtration layer from being damaged and the water purification performance of the filtration pond K to be reduced, and that a good scraping operation can be performed efficiently.

【００１４】次に掻上機２の構成について図３〜図１１
を参照し説明する。図示例の掻上機２は、クローラ式の
走行装置２０ａを備えた機台（走行機体）２０上に、掻
寄条Ｗ１の汚砂Ｗをその両側から掻寄せて掻上げる掻上
装置２ｂと、該掻上装置２ｂで掻上げられた汚砂Ｗを受
け継いで掻上機２の後方上方に向けて搬送する搬送体２
ｃとからなる掻上搬送装置２ａを、後述する支持機構５
の上部に横設された駆動軸５０部分に搬送フレーム２Ｆ
の前後方向の中程を支架して、前方を低く後方を高くし
た前傾姿勢を以て且つ揺動回動可能に支持すると共に、
エンジン２Ｅを該支持機構５の後方で搬送体２ｃの下方
に広く形成された空間部内に配置している。これにより
掻上搬送装置２ａをその中程を支点に小動力を以て良好
に上下回動可能にすると共に、掻上搬送装置２ａの下方
及び後方に支持機構５並びにエンジン２Ｅをコンパクト
に設置することができるように構成している。また操向
レバー５ｂ及び掻上搬送装置２ａの昇降操作を司る昇降
レバー５Ｌ等と座席シート５ｃを有する操縦部５ａは、
この実施形態においては上記搬送体２ｃの右側に機台２
０から偏寄させて設置している。Next, the structure of the scraper 2 will be described with reference to FIGS.
This will be described with reference to FIG. The scraping machine 2 of the illustrated example includes a scraping device 2b that scrapes and scrapes the soil W of the scraping strip W1 from both sides onto a machine base (running body) 20 having a crawler-type traveling device 20a. A transport body 2 that inherits the contaminated sand W picked up by the scraping device 2b and conveys the dust sand W upward and rearward of the scraper 2.
c to a support mechanism 5 to be described later.
The transport frame 2F is mounted on the drive shaft 50
Along the middle of the front-back direction, with a forward leaning posture with the front lower and the rear higher, and swingably supported,
The engine 2E is disposed in a space widely formed below the carrier 2c behind the support mechanism 5. This makes it possible to favorably turn the scraping and conveying device 2a up and down with a small power around the middle thereof, and to compactly install the support mechanism 5 and the engine 2E below and behind the scraping and conveying device 2a. It is configured to be able to. Further, the steering section 5a including the lifting lever 5L and the like for controlling the lifting and lowering operation of the steering lever 5b and the lifting and conveying device 2a, and the seat 5c,
In this embodiment, the machine base 2 is located on the right side of the carrier 2c.
It is installed offset from zero.

【００１５】図５〜図７に示すように上記掻上装置２ｂ
は、前記掻寄条Ｗ１よりも広巾で且つ掻寄跡地Ｗ２の巾
よりも狭巾に形成したカバー枠２１内に回転軸６を下向
駆動回転可能に横設し、該回転軸６の中央部に掻上羽６
０を放射方向に複数突設してなる掻上体６０ａと、その
両側に螺旋体６１を設けその下向回転に伴って地表の汚
砂Ｗを前述した掻寄機１の掻寄装置１ａと同様に削り取
って内央部に掻寄せる掻寄装置６１ａとから構成してい
る。また、カバー枠２１は掻上羽６０の後方部位を切欠
して汚砂Ｗを後方に掻上げ排出させる排出口２１ａを形
成し、該排出口２１ａの下方には受け板２１ｂを敷設
し、その後端を搬送体２ｃの前端部中央上部に臨設させ
て、掻上装置２ｂから排出される汚砂Ｗを搬送体２ｃへ
円滑に継送するようにしている。As shown in FIGS. 5 to 7, the scraping device 2b
The rotary shaft 6 is laid laterally so as to be rotatable downward in a cover frame 21 formed to be wider than the scraping strip W1 and narrower than the width of the scraping site W2. Raised feather 6
0 is protruded in the radial direction, and a spiral body 61 is provided on both sides of the scraper 60a. And a scraping device 61a for scraping and scraping to the inner central part. Further, the cover frame 21 cuts out the rear part of the raking blades 60 to form a discharge port 21a for raising and discharging the dirty sand W to the rear, and a receiving plate 21b is laid below the discharge port 21a. The end is located at the upper center of the front end of the carrier 2c, so that the contaminated sand W discharged from the scraping device 2b is smoothly transferred to the carrier 2c.

【００１６】そして、上記のように構成された掻上装置
２ｂは、カバー枠２１の両側に突設した支軸２１Ｇを、
搬送体２ｃの搬送フレーム２Ｆの両側に突設させた支軸
２Ｊに対し支杆２２でローリング回動可能に連結すると
共に、カバー枠２１の央部に設けた支軸２１Ｓを搬送フ
レーム２Ｆの前方で央部上方に設けた支軸２Ｋと支杆２
２ａで連結することにより、３点リンク機構２２ｂを構
成して支持している。これにより、掻上装置２ｂを搬送
体２ｃに対し掻取跡地Ｗ２の地表の傾斜或いは凹凸面に
沿って左右に単独揺動自在に可動支持することができ
て、掻寄条Ｗ１の汚砂Ｗ並びにその側方に散在する汚砂
Ｗ等を精度よく良好に削りながら掻寄せて掻上ることを
可能にしている。Then, the scraping device 2b configured as described above is provided with a support shaft 21G protruding from both sides of the cover frame 21.
The support shaft 2J protruding from both sides of the transfer frame 2F of the transfer body 2c is rotatably connected to the support shaft 2J by a support rod 22, and the support shaft 21S provided at the center of the cover frame 21 is connected to the front of the transfer frame 2F. Shaft 2K and support rod 2 provided above the center
The two-point link mechanism 22b constitutes and supports the three-point link mechanism 22b. Thus, the scraping device 2b can be movably supported on the carrier 2c so as to be able to swing independently to the left and right along the slope or uneven surface of the scraping site W2 with respect to the carrier 2c. In addition, it is possible to scrape and scoop up the sewage W and the like scattered on the side while accurately and accurately shaving it.

【００１７】さらに掻上装置２ｂは、前記両側の支軸２
１Ｇを昇降ロッド７０を介し、後述する昇降機構７の作
動ピン７１と連結することにより、上記３点リンク機構
２２ｂに支持された状態で所定角度範囲に単独昇降回動
可能に構成されている。また、掻上装置２ｂのカバー枠
２１の両側には接地用の橇体２１ｄを設けており、該橇
体２１ｄを地面に接地させて走行することにより、掻上
装置２ｂの自重を支えながら掻寄装置６１ａによる掻寄
作業を精度よく行うようにしている。Further, the scraping device 2b includes the support shafts 2 on both sides.
The 1G is connected to an operating pin 71 of a lifting mechanism 7 described later via a lifting rod 70, so that the 1G can be independently raised and lowered in a predetermined angle range while being supported by the three-point link mechanism 22b. Further, a grounding sled 21d is provided on both sides of the cover frame 21 of the scraping device 2b, and the sled 21d is grounded on the ground to travel, thereby supporting the scraping device 2b while supporting its own weight. The scraping device 61a performs the scraping operation with high accuracy.

【００１８】一方、図５，図８，図９に示すように搬送
体２ｃは、搬送間隔を有して前後方向左右に並設した搬
送フレーム２Ｆ，２Ｆの前後端に、遊動ローラ２３ａと
駆動ローラ２３とを軸支して、両者に可撓性を有するゴ
ム或いはプラスチック材からなる搬送ベルト２Ｖを巻掛
けると共に、搬送フレーム２Ｆ，２Ｆ間に前後方向に所
定間隔を有して設置した適数のガイドローラ２３ｂと受
けローラ２３ｃとによって、搬送ベルト２Ｖの搬送側裏
面及び非搬送側表面とを転動案内するようにしている。
また図１０に示すように搬送ベルト２Ｖは、搬送終端側
の回向部においてテンションローラ２４ａを有するテン
ションレバー２４によってベルト張り調節自在に構成さ
れている。On the other hand, as shown in FIG. 5, FIG. 8, and FIG. 9, the transport body 2c is provided with a floating roller 23a at the front and rear ends of transport frames 2F, 2F arranged side by side in the front-rear direction with a transport interval. A roller 23 is supported on the roller 23, and a transport belt 2V made of a flexible rubber or plastic material is wound around the roller 23, and an appropriate number of rollers are provided between the transport frames 2F, 2F at predetermined intervals in the front-rear direction. The guide roller 23b and the receiving roller 23c guide the rolling back of the transport-side back surface and the non-transport-side surface of the transport belt 2V.
As shown in FIG. 10, the transport belt 2V is configured such that the belt tension can be freely adjusted by a tension lever 24 having a tension roller 24a at a turning portion on the transport end side.

【００１９】上記搬送フレーム２Ｆは駆動軸５０を軸支
するメタル部２Ｍを、支持機構５の支持フレーム５Ｆの
上部に形成したメタル部５Ｍに軸支することにより、掻
上搬送装置２ａを搬送体２ｃの前後方向の中間部位を支
点として、前傾姿勢で上下方向に回動可能となるように
構成している。また、上記支持フレーム５Ｆは、下部に
平面視方形状に一体的に形成した台座部５Ｆ１を、機台
２０に対し取付ネジ５Ｎによって着脱可能に締着して取
付けるようにしており、これによって掻上搬送装置２ａ
を支持機構５と共に機台２０から簡単に取り外し除去す
ることを可能とし、除去後の機台２０上に土木作業機や
農用作業機等の作業装置（図示せず）の設置を可能とな
して、掻上機２の非使用時に走行機体を他用途に簡単に
有効利用することができるようにしている。また上記構
成により、掻上機２の製作に当たっては掻上搬送装置２
ａと支持機構５とを予め別組み作業によって組立た状態
で、後付け作業によって機台２０上に単に載置するだけ
で組付けを行うことが可能となり、掻上機２の製作を能
率よく簡単に行うことができる等の利点がある。The transport frame 2F supports the metal portion 2M, which supports the drive shaft 50, on a metal portion 5M formed above the support frame 5F of the support mechanism 5, thereby allowing the scraping-up transport device 2a to be transported. It is configured to be rotatable up and down in a forwardly inclined posture, with a middle point in the front-rear direction 2c as a fulcrum. The support frame 5F is configured such that a pedestal portion 5F1 integrally formed in a lower part in a planar view rectangular shape is removably fastened to the machine base 20 with mounting screws 5N, thereby attaching the support frame 5F. Upper transfer device 2a
Can be easily removed from the machine base 20 together with the support mechanism 5, and a working device (not shown) such as a civil working machine or an agricultural work machine can be installed on the machine base 20 after the removal. When the scraper 2 is not used, the traveling machine body can be easily and effectively used for other purposes. Further, according to the above configuration, in manufacturing the scraping machine 2,
a and the support mechanism 5 can be assembled by simply placing them on the machine base 20 by post-installation work in a state where they are assembled in advance by separate assembling work, and the scraper 2 can be manufactured efficiently and easily. And so on.

【００２０】尚、上記支持機構５の筐枠状に形成した支
持フレーム５Ｆ内には、エンジン２Ｅから伝動ベルト５
Ｖを巻掛けて駆動される入力プーリ５１ａを備えた入力
軸５１を軸支すると共に、該入力軸５１に取着される出
力プーリ５１ｂから下方に設置される油圧ポンプ２Ｐの
入力プーリ５１ｃへ伝動ベルト５Ｖを介して伝動し、且
つ出力プーリ５１ｄから駆動軸５０の入力プーリ５０ａ
に伝動ベルト５Ｖを介して伝動するように構成されてい
る。また支持フレーム５Ｆを前述のように取り外すと
き、これら伝動装置も支持フレーム５Ｆと共に一体で機
台２０上から取り外すことができるものである。The support belt 5F formed in the shape of the housing of the support mechanism 5 has a transmission belt 5 from the engine 2E.
An input shaft 51 having an input pulley 51a driven by winding V is supported and transmitted from an output pulley 51b attached to the input shaft 51 to an input pulley 51c of a hydraulic pump 2P installed below. The power is transmitted through the belt 5V, and the input pulley 50a of the drive shaft 50 is transmitted from the output pulley 51d.
Is transmitted via a transmission belt 5V. When the support frame 5F is removed as described above, these transmissions can be integrally removed from the machine base 20 together with the support frame 5F.

【００２１】また、駆動軸５０の入力プーリ５０ａの他
端側にはベベルギア等の伝動変換機構５２を搬送フレー
ム２Ｆに取付けて設置しており、該伝動変換機構５２に
よって回転伝動される軸伝動機構５３を搬送フレーム２
Ｆの外側に沿設し、その前端部において屈折伸縮可能な
自在伝動軸５５及び伝動変換機構５５ａを介して掻上装
置２ｂの回転軸６を回転駆動すると共に、搬送フレーム
２Ｆ後端部の伝動変換機構５６を介して駆動ローラ２３
を回転駆動するようにしている。尚、図示例のように駆
動軸５０の軸支部分を支点として掻上搬送装置２ａを揺
動回動可能に支架すると、上記のように支持構成及び伝
動構成を簡潔にすることができるが、これに限ることな
く揺動支点は搬送フレーム２Ｆの前後方向中途の所望位
置に設けてもよいものである。At the other end of the input pulley 50a of the drive shaft 50, a transmission conversion mechanism 52 such as a bevel gear is mounted and installed on the transport frame 2F, and a shaft transmission mechanism that is rotationally transmitted by the transmission conversion mechanism 52 is provided. 53 is the transport frame 2
The rotary shaft 6 of the scraping device 2b is rotatably driven via a free transmission shaft 55 and a transmission conversion mechanism 55a at the front end along the outside of the front frame F, and the transmission of the rear end of the transport frame 2F. Drive roller 23 via conversion mechanism 56
Is driven to rotate. In addition, as shown in the illustrated example, if the lifting and conveying device 2a is swingably supported on the pivot portion of the drive shaft 50 as a fulcrum, the support configuration and the transmission configuration can be simplified as described above. The swing fulcrum is not limited to this, and may be provided at a desired position in the longitudinal direction of the transport frame 2F.

【００２２】８は搬送体２ｃの後部において、搬送ベル
ト２Ｖで搬送放出される汚砂Ｗを受けて後方に滑落させ
搬出機３の容器３１内に誘導供給する継送装置（シュウ
ター）であり、図示例の継送装置８は断面上向きコ字状
に形成し、その前端部を搬送フレーム２Ｆの後端下部に
取付軸８０によって回動可能に枢支すると共に、該継送
装置８の中途部に形成したブラケット８１と終端部に形
成したブラケット８２とに、機台２０の後部から立設し
た支柱２０ｂに支軸２０ｃによって取付けられた長さ調
節可能な支持杆８３の上端部を、取付ピン８５を抜き差
して作業姿勢と格納姿勢とに切換可能に支持するように
している。Reference numeral 8 denotes a transfer device (shutter) at the rear of the transporting body 2c, which receives the contaminated sand W conveyed and discharged by the conveying belt 2V, slides it backward, and guides and feeds it into the container 31 of the unloader 3. In the illustrated example, the transfer device 8 is formed in a U-shape in cross section, and its front end is rotatably supported by a mounting shaft 80 at the lower rear end of the transfer frame 2F, and at the middle of the transfer device 8. The upper end of a support rod 83 having an adjustable length, which is attached to a support post 20b erected from the rear of the machine base 20 by a support shaft 20c, is attached to a bracket 81 formed at the end and a bracket 82 formed at the end portion. 85 is supported so as to be switchable between the working posture and the storage posture.

【００２３】これにより、上記作業姿勢において継送装
置８は、掻上搬送装置２ａが駆動軸５０を中心に回動し
搬送体２ｃの後端が下がるときにおいても、支持杆８３
によって突き上げられるように支持されることにより、
その終端部をそれほど下降させることなく搬出機３の容
器３１内に汚砂Ｗを適切に排出することができるもので
ある。また、格納姿勢の切換は支持杆８３の上端をブラ
ケット８１から取付ピン８５を外してブラケット８２に
差し替えることにより、継送装置８を点線で示す機体に
接近させた垂下姿勢に変姿することができるので、機体
長を簡単に短くすることができて掻上機２の格納をコン
パクトに行うことができる等の特徴がある。Thus, in the above working posture, the transfer device 8 can support the support rod 83 even when the scraping and conveying device 2a rotates about the drive shaft 50 and the rear end of the conveying member 2c is lowered.
By being supported by being pushed up by
The dirt W can be appropriately discharged into the container 31 of the unloader 3 without lowering the terminal end much. Also, the switching of the storage position can be performed by removing the mounting pin 85 from the bracket 81 and replacing the upper end of the support rod 83 with the bracket 82, thereby changing the transfer device 8 to the hanging position approaching the machine indicated by the dotted line. Since it is possible, the length of the machine body can be easily shortened, and the storage of the scraper 2 can be made compact.

【００２４】次に、前出の昇降機構７の構成について図
８，図９（Ｂ）を参照し説明する。この昇降機構７は、
支持フレーム２Ｆ，２Ｆの前部側からそれぞれ下方に垂
設した支持板２５，２５間に作動軸７２を回動可能に軸
架し、該作動軸７２はその央部に機台２０に枢支した油
圧シリンダ（アクチェータ）２Ｓを連結する作動アーム
７３を固着すると共に、上記作動軸７２の両軸端に前出
の作動ピン７１，７１を有する作動片７１ａを固着し、
上記作動アーム７３の前側下部には作動部７３ａを突出
形成している。Next, the structure of the lifting mechanism 7 will be described with reference to FIGS. 8 and 9B. This lifting mechanism 7
An operating shaft 72 is rotatably mounted between support plates 25, 25 vertically suspended from the front sides of the support frames 2F, 2F, and the operating shaft 72 is pivotally mounted on the machine base 20 at the center thereof. The operating arm 73 for connecting the hydraulic cylinder (actuator) 2S is fixed, and the operating piece 71a having the operating pins 71, 71 is fixed to both shaft ends of the operating shaft 72.
An operating portion 73a is formed to project from a lower portion on the front side of the operating arm 73.

【００２５】そして、図８に示すように前記支持板２
５，２５の下部前方間には受動杆２６を横設し、上記作
動アーム７３が油圧シリンダ２Ｓによって前方に向けて
点線で示すように所定量だけ回動したとき、前記作動部
７３ａと接当して支持板２５を介して掻上搬送装置２ａ
を駆動軸５０を中心に上昇回動させることができるよう
にしている。また、前記掻上装置２ｂと作動ピン７１，
７１とを連結する昇降ロッド７０は、同図（Ｂ）に示す
ように、前後に分割したロッド７５，７５を弾持機構７
６で連結して構成しており、該弾持機構７６内に嵌挿し
たスプリング７６Ｓによって掻上装置２ｂの左右を弾性
支持するようにしている。Then, as shown in FIG.
A passive rod 26 is provided laterally between the lower front portions 5 and 25, and when the operating arm 73 is turned forward by a predetermined amount as indicated by a dotted line by a hydraulic cylinder 2S, the passive arm 26 comes into contact with the operating portion 73a. And the scraping and conveying device 2a via the support plate 25
Can be rotated upward about the drive shaft 50. Further, the scraping device 2b and the operating pin 71,
As shown in FIG. 3 (B), the lifting rod 70 connecting the rod 71 with the front and rear rods 71, 75
6, and the spring 76S inserted into the elastic holding mechanism 76 elastically supports the left and right sides of the scraping device 2b.

【００２６】従って、操縦部５ａに設置した昇降レバー
５Ｌを前後方向に一次操作すると、油圧ポンプ２Ｐの圧
油が油圧シリンダ２Ｓを伸動し、作動アーム７３が作動
軸７２と共に作動片７１ａ，作動ピン７１を矢印方向に
回動させるので、昇降ロッド７０を介し掻上装置２ｂを
図３に示すθ角の範囲で昇降調節することができる。こ
れにより、大重量で大型な搬送体２ｃを上下させること
なく搬送姿勢に維持させたまま、軽量小型の掻上装置２
ｂのみを昇降動作させて、地面の状況に適応した高さに
簡単に調節することができて、掻寄条Ｗ１の汚砂Ｗを適
切に掻上げると共に搬送を良好に行うことができるもの
である。また掻上装置２ｂは、３点リンク機構２２ｂで
支持すると共に、その両側を弾持機構７６を有する昇降
ロッド７０を介して支持されていることにより、地面の
僅かな凹凸に対しても左右及び上下に倣い回動し、汚砂
Ｗを精度よく綺麗に掻上げることができるものである。Therefore, when the raising / lowering lever 5L installed on the control unit 5a is primarily operated in the front-rear direction, the hydraulic oil of the hydraulic pump 2P extends the hydraulic cylinder 2S, and the operating arm 73 works together with the operating shaft 72 with the operating piece 71a and the operating piece. Since the pin 71 is rotated in the direction of the arrow, the lifting device 2b can be moved up and down through the elevating rod 70 within the range of the angle θ shown in FIG. Thus, while maintaining the transport posture without moving the heavy and large transport body 2c up and down, the lightweight and small lifting device 2
b can be easily moved up and down to easily adjust the height to the level adapted to the ground condition, so that the contaminated sand W of the scraping strip W1 can be appropriately lifted and transported properly. is there. Further, the lifting device 2b is supported by the three-point link mechanism 22b, and both sides thereof are supported via the lifting rod 70 having the elastic mechanism 76, so that the right and left sides and the slight unevenness of the ground can be also adjusted. It can follow up and down, and can scoop up the dirty sand W precisely and neatly.

【００２７】従って、掻上装置２ｂは汚砂Ｗを掻寄条Ｗ
１巾の両側から螺旋体６１によって掻漏れを生じないよ
うに順次整然と掻寄せながら、その内央部で掻上羽６０
によって後方に撥ね上げて受け板２１ｂから搬送ベルト
２Ｖ上に的確に継送することができ、また、搬送ベルト
２Ｖ上に載置された汚砂Ｗは後方上方に向けて搬送され
その終端部において継送装置８に放出継送し、継送され
た汚砂Ｗは該継送装置８上を滑落し、その終端部から搬
出機３の容器３１内に良好に排出収容されることとな
る。Accordingly, the scraping device 2b transfers the soil W
The scraping wings 60 are arranged at the inner central portion of the helical body 61 in order from the both sides of the one width so as not to cause a leak.
, And can be accurately transferred from the receiving plate 21b onto the conveyor belt 2V, and the contaminated sand W placed on the conveyor belt 2V is conveyed upward and rearward at the terminal end thereof. The contaminated sand W that has been released and transferred to the transfer device 8 and slides down on the transfer device 8, and is discharged and stored in the container 31 of the unloading machine 3 from the end thereof.

【００２８】また、掻上装置２ｂを大きく持ち上げて掻
寄条Ｗ１を乗り越え走行したり、掻上機２をトラック等
に道板を用いて搭載するとき等傾斜状態で走行する際に
は、昇降レバー５Ｌを二次操作することにより油圧シリ
ンダ２Ｓをさらに伸動させることができるので、作動ア
ーム７３を大きく上方に回動させて作動部７３ａを介し
受動杆２６を押し上げることができる。この結果図３の
点線で示すように、掻上装置２ｂは前記一次操作の回動
角θに最上昇された状態で、搬送体２ｃと共に駆動軸５
０を中心に一体的に上昇回動することができ、上記傾斜
走行を支障なく円滑に行うことができるものである。Also, when the scraping device 2b is lifted greatly to run over the scraping streak W1 or when the scraping machine 2 is mounted on a truck or the like using a road plate and is run in an inclined state, the lifting and lowering is performed. The hydraulic cylinder 2S can be further extended by performing the secondary operation of the lever 5L, so that the operating arm 73 can be pivoted largely upward to push up the passive rod 26 via the operating portion 73a. As a result, as shown by the dotted line in FIG. 3, in the state where the scraping device 2 b has been most raised to the rotation angle θ of the primary operation, the drive shaft 5 together with the transport body 2 c is
It is possible to integrally rotate about 0, and the above-mentioned inclined traveling can be performed smoothly without any trouble.

【００２９】次に、図１２，図１３において搬出機３に
ついて説明する。この搬出機３はクローラ式の走行装置
３０ａを有する機台３０の前方に箱型状の容器３１をダ
ンプ回動操作可能に設けると共に、その後方に操向レバ
ー３２ａ，昇降レバー３Ｌ，アクセルレバー３２ｃ，走
行クラッチレバー３２ｄ及び座席シート３２ｂを有する
操縦部３２を設け、その側方にエンジン３Ｅとを配設し
ている。上記容器３１は機台３０の前部に取付軸３３を
介して回動可能に軸支され、その後方側を機台３０に枢
支した油圧シリンダ３Ｓと連結している。これにより、
前記昇降レバー３Ｌの操作によって該油圧シリンダ３Ｓ
を伸動させたとき、容器３１を取付軸３３を中心にダン
プ回動させると共に、後述する煽り板３１ａを開動させ
て収容汚砂Ｗを排出させるようにしている。上記容器３
１の煽り板３１ａは、左右の煽り板３１ｂの前部上方に
設けた取付軸３１ｃを中心に下方が開閉回動可能に設け
られており、容器３１がダンプ回動された際に、図１３
の点線で示すように煽り板３１ａが切換開動されて、収
容された汚砂Ｗを速やかに排出することができるように
している。Next, the unloading machine 3 will be described with reference to FIGS. In the unloader 3, a box-shaped container 31 is provided in front of a machine base 30 having a crawler-type traveling device 30a so as to be capable of dumping rotation, and a steering lever 32a, a lifting lever 3L, and an accelerator lever 32c are provided behind the container. , A control section 32 having a traveling clutch lever 32d and a seat 32b, and an engine 3E is disposed beside the control section 32. The container 31 is rotatably supported at the front of the machine base 30 via a mounting shaft 33, and the rear side thereof is connected to a hydraulic cylinder 3S pivotally supported by the machine base 30. This allows
The hydraulic cylinder 3S is operated by operating the lift lever 3L.
When the container 31 is extended, the container 31 is dumped around the mounting shaft 33, and at the same time, the tilting plate 31a, which will be described later, is opened to discharge the stored dirty sand W. The above container 3
The lowering plate 31a is provided so as to be openable and closable about a mounting shaft 31c provided above the front portion of the left and right louvers 31b.
As shown by the dotted line, the fanning plate 31a is switched and opened, so that the stored dirty sand W can be quickly discharged.

【００３０】また、上記煽り板３１ａの前面には、搬出
機３が掻上機２の後方で追走して作業する際に、両者の
追突等接当を防止する追突防止装置９を設置している。
即ち、上記追突防止装置９は煽り板３１ａに着脱自在に
取着される取付枠９０に、センサ杆９１の基部を該取付
枠９０に設けた支持軸９２に回動可能に枢支し、一方の
センサ杆９３の基部を上記取付枠９０に形成した横溝
（ガイドレール）内でスライド可能に支持した状態で、
両センサ杆９１，９３の中途部を交差させて該交差部を
連結ピン９４で連結することによりパンタグラフ状のク
ロスリンクを形成すると共に、上記センサ杆９３の基部
側を支持軸９２側に引っ張るスプリング９５を設けて、
両センサ杆９１，９３の先端部を前方向に突出する姿勢
に付勢している。そして、上記両センサ杆９１，９３の
先端部には滑動用のローラ９Ｒを設けている。In addition, a collision preventing device 9 for preventing the collision of the unloading machine 3 with the unloading machine 2 when the unloading machine 3 works behind the scraping machine 2 is installed on the front surface of the lifting plate 31a. ing.
That is, the rear-end collision preventing device 9 pivotally supports the base of the sensor rod 91 on a support shaft 92 provided on the mounting frame 90, on a mounting frame 90 detachably attached to the lifting plate 31 a. In a state where the base of the sensor rod 93 is slidably supported in a lateral groove (guide rail) formed in the mounting frame 90,
A spring that crosses the middle portions of the sensor rods 91 and 93 and connects the crossed portions with a connecting pin 94 to form a pantograph-shaped cross link and pulls the base side of the sensor rod 93 toward the support shaft 92. 95,
The distal ends of the sensor rods 91 and 93 are urged to protrude forward. A sliding roller 9R is provided at the tip of each of the sensor rods 91 and 93.

【００３１】また、上記のようにクロスリンク機構に構
成した追突防止装置９は、センサ杆９１或いはセンサ杆
９３の何れか一方又は両方が掻上機２の後部と接当して
押接されるとき、図１２の実線で示す通常姿勢から後方
向けて点線で示すＲ１，Ｒ２位置に退動変位される変位
量を、ポテンショメータ，リミットスイッチ等の電気的
手段、或いはリンクの動きをワイヤ，連杆等の連携手段
によって構成されるセンサ９Ｓで検出するように設け、
該センサ９Ｓの検出作動によって上記Ｒ１位置では走行
速度を低速にさせると共にＲ２位置では搬出機３の走行
を停止させて、搬出機３と掻上機２との接当（衝突）を
防止し両者の機体破損等を確実に防止することができる
ようにしている。In the rear-end collision prevention device 9 configured as a cross link mechanism as described above, one or both of the sensor rod 91 and the sensor rod 93 come into contact with the rear portion of the scraper 2 and are pressed. At this time, the amount of displacement that is displaced backward from the normal posture shown by the solid line in FIG. 12 to the R1 and R2 positions shown by the dotted lines is determined by electric means such as a potentiometer or a limit switch, or the movement of the link by a wire or a connecting rod. Provided so as to be detected by a sensor 9S configured by a linking means such as
By the detection operation of the sensor 9S, the traveling speed is reduced at the R1 position and the traveling of the unloader 3 is stopped at the R2 position to prevent contact (collision) between the unloader 3 and the scraper 2 to prevent both. It is possible to reliably prevent the aircraft from being damaged.

【００３２】図示例の実施形態において上記センサ９Ｓ
は、センサ杆９３の基部に連結したインナワイヤ及びア
ウタワイヤからなる作動ワイヤ９６をエンジン３Ｅのガ
バナー３Ｇと走行クラッチレバー３２ｄに連結し、追突
防止装置９が掻上機２と接当したときのセンサ杆９１，
９３の退動作動の程度によって、ガバナー３Ｇを作動調
節してエンジン３Ｅの低速回転調節を行うと共に、最低
回転域において走行クラッチレバー３２ｄを切り位置に
作動させるようにしている。即ち、上記センサ杆９１，
９３がＲ１位置に退動されると搬出機３を低速走行させ
て掻上機２と等速度で追動させると共に、センサ杆９
１，９３がさらに退動したＲ２位置になると、エンジン
３Ｅの低速回転域において走行クラッチレバー３２ｄを
切り作動し搬出機３の走行を停止をさせて、搬出機３と
掻上機２との衝突を防止することができるようにしてい
る。尚、エンジン３Ｅは在来のものと同様にアクセルレ
バー３２ｃによってエンジン回転を単独調節操作可能に
構成されている。In the illustrated embodiment, the sensor 9S
Is connected to the governor 3G of the engine 3E and the traveling clutch lever 32d by connecting an operating wire 96 composed of an inner wire and an outer wire connected to the base of the sensor rod 93, and the sensor rod when the rear-end collision prevention device 9 comes into contact with the scraper 2. 91,
The governor 3G is operated to adjust the low speed rotation of the engine 3E in accordance with the degree of the retreating movement of the engine 93, and the traveling clutch lever 32d is operated to the disengaged position in the lowest rotation range. That is, the sensor rod 91,
When the 93 is retracted to the R1 position, the unloader 3 is moved at a low speed to follow the scraper 2 at the same speed, and the sensor rod 9 is moved.
When the first and third gears 93 are moved further to the R2 position, the traveling clutch lever 32d is disengaged and operated in the low-speed rotation range of the engine 3E to stop the traveling of the unloading machine 3, and the collision between the unloading machine 3 and the scraping machine 2 is performed. Is to be able to prevent. The engine 3E is configured to be able to independently adjust the rotation of the engine by an accelerator lever 32c, similarly to a conventional engine.

【００３３】以上の構成からなる搬出機３は、掻上機２
によって掻上搬送し継送装置８から排出される汚砂Ｗを
容器３１内に山積み状の満杯に収容したのちは、単独で
自走させて濾過池Ｋに設置した搬出装置Ｋ２或いは貯溜
箇所Ｋ３等所定の場所に走行移動し、前記昇降レバー３
Ｌを操作して油圧シリンダ３Ｓを作動し、容器３１を取
付軸３３を中心に前方上方にダンプ回動させ、収容した
汚砂Ｗを速やかに排出したのち該容器３１を復帰回動さ
せて、機体をもとの掻上機２の後方に追走する作業状態
に復帰させて収納作業を続行させるものである。尚、上
記搬出機３は複数台の搬出機３によって行うとよく、こ
の場合搬出機３が搬出作業を行っている間に別の搬出機
３によって収容作業を連続的に行うことがでる。The unloading machine 3 having the above-described configuration is a
After the contaminated sand W discharged from the transfer device 8 is stored in the container 31 in a piled-up state, the container 31 is driven by itself and carried out by the unloading device K2 or the storage location K3 installed in the filtration tank K. Travel to a predetermined place, etc.
By operating L, the hydraulic cylinder 3S is operated, the container 31 is dumped upward and forward about the mounting shaft 33, and the contained sand W is quickly discharged, and then the container 31 is returned and rotated. This is to return the machine body to a work state in which the machine body follows the original hoisting machine 2 and to continue the storage work. The unloading machine 3 may be performed by a plurality of unloading machines 3. In this case, while the unloading machine 3 is performing unloading work, the accommodating operation can be continuously performed by another unloading machine 3.

【００３４】上記掻上機２に搬出機３を追走させる作業
において、掻上機２が不慮に停止したりスピードダウン
等で遅走したりした場合、或いは搬出機３を所定速度よ
り高速にした場合に、掻上機２と搬出機３とは衝突する
ことになるが、このような場合に本発明に係わる搬出機
３においては、容器３１の前面に設置した追突防止装置
９のセンサ杆９１，９３が、掻上機２の後部機枠２０ｂ
に接当して押動され退動変位するので、その作動量に応
じセンサ９Ｓが作動ワイヤ９６を介してガバナー３Ｇを
作動しエンジン３Ｅの回転調節を行って、前記センサ杆
９１，９３がＲ１位置付近にあるときは掻上機２の走行
速度に対応した搬出機３の低速速度による追走を良好に
行うと共に、センサ杆９１，９３がそれ以上に退動され
てＲ２位置になると、走行クラッチレバー３２ｄを切り
作動させて機体を即時停止させることにより、搬出機３
と掻上機２との衝突を的確に防止することができるよう
にしているので、掻上機２に対する追走運転操作を簡単
且つ容易に行うことができるものである。In the operation of causing the unloading machine 3 to follow the scraping machine 2, if the unloading machine 2 is stopped unexpectedly or slows down due to speed reduction, or the unloading machine 3 is moved at a speed higher than a predetermined speed. In this case, the scraper 2 and the unloader 3 collide. In such a case, in the unloader 3 according to the present invention, the sensor rod of the rear-end collision prevention device 9 installed on the front surface of the container 31 is used. 91 and 93 are rear machine frames 20b of the scraper 2.
, The sensor 9S operates the governor 3G via the operation wire 96 to adjust the rotation of the engine 3E according to the amount of operation, and the sensor rods 91 and 93 rotate the R1. When it is in the vicinity of the position, the trailing machine 3 performs good running at the low speed of the unloading machine 3 corresponding to the running speed of the scraper 2, and when the sensor rods 91 and 93 are further retracted to the R2 position, the running is performed. By immediately disengaging the clutch lever 32d to stop the machine, the unloading machine 3
The collision with the scraper 2 can be accurately prevented, so that the follow-up operation for the scraper 2 can be performed easily and easily.

【００３５】次に、以上のように構成した本発明によっ
て行う濾過池Ｋにおける汚砂等の掻取り搬出作業につい
て説明する。先ず、濾過池Ｋに掻寄機１を先行走行させ
ることにより、その掻寄装置１ａによって表層の汚砂Ｗ
を所定の厚さで所定巾に掻寄せて、盛土条の掻寄条Ｗ１
を掻取跡地Ｗ２の中央に形成する。次いで、該掻取跡地
Ｗ２に上記掻寄条Ｗ１に沿わせて掻上機２を走行させ、
その掻上搬送装置２ａによって掻寄条Ｗ１の汚砂Ｗを掻
上げ搬送すると共に、該掻上機２の後方に搬出機３を追
走させながら、掻上げ搬送される汚砂Ｗを搬出機３の容
器３１に収容し該容器３１に汚砂Ｗが満杯になったと
き、搬出機３を単独自走させて掻取跡地Ｗ２から搬出装
置Ｋ２或いは貯溜箇所Ｋ３等の所定の場所に移送搬出す
る。Next, a description will be given of the work of scraping and carrying out dirty sand and the like in the filtration pond K performed by the present invention configured as described above. First, the scraping device 1a is caused to travel in advance of the filter pond K, and the scraping device 1a causes the surface sand S W to be removed.
With a predetermined thickness and a predetermined width, and the embankment strip W1
Is formed at the center of the scraping site W2. Next, the scraper 2 is caused to travel along the scraping line W1 on the scraping site W2,
The scraping and conveying device 2a lifts and conveys the contaminated sand W of the scraping line W1, and moves the conveyer 3 behind the raking machine 2 to remove the contaminated sand W that is picked and conveyed. When the container 31 is filled with dirty sand W and the container 31 is full, the unloader 3 is independently run and transferred from the scraping site W2 to a predetermined location such as the unloading device K2 or the storage location K3. I do.

【００３６】このとき、掻上機２は掻上装置２ｂが機体
前部に３点リンク機構２２ｂによって揺動可能に支持さ
れていることにより、掻取跡地Ｗ２の地面の凹凸に適応
して掻寄条Ｗ１の汚砂Ｗを漏れなく掻上げることができ
るので、掻取跡地Ｗ２に汚砂Ｗを残置させることなく掻
上作業を精度よく良好に行う。また、掻上げられた汚砂
Ｗは搬送体２ｃによって機体の後方上方の高い位置に搬
送し、その終端部から継送装置８を介して高い位置から
良好に排出させるので、追走する搬出機３の容器３１内
に連携よく的確に収納させることができる。At this time, since the scraping device 2b is swingably supported at the front of the machine by the three-point link mechanism 22b, the scraping device 2 is adapted to the unevenness of the ground at the scraping site W2. Since it is possible to scrape up the soil sand W of the extension W1 without leaking, the scraping work is performed accurately and favorably without leaving the soil sand W at the scraping site W2. In addition, the scavenged sand W is transported by the transport body 2c to a high position behind and above the fuselage, and is discharged from the high end through the transfer device 8 from the end portion thereof. 3 can be accurately and cooperatively stored in the container 31.

【００３７】上記掻取り搬出装置は以上に説明したよう
に、濾過池Ｋの地表の汚砂Ｗを掻寄装置１ａによって所
定巾で削りながら掻寄せて掻寄条Ｗ１を形成する自走型
の掻寄機１と、該掻寄条Ｗ１を掻上搬送装置２ａによっ
て掻上げて後方上方に向けて搬送し排出する自走型の掻
上機２と、該掻上機２から排出される汚砂Ｗを容器３１
に受けて収容する搬出機３等を夫々単独に自走可能に構
成したことにより、個々の作業機体を軽量化構成するこ
とができて、これら作業機が濾過池Ｋを走行する際にそ
の自重による、機体の沈下を可及的に抑制することがで
き作業を精度よく高能率に行うと共に、濾過層を自重で
鎮圧することによる損壊を防止して濾過性能を損なうこ
となく汚砂Ｗの掻取り搬出作業を行い、良好な浄水処理
を連続的に継続させることができる等の特徴がある。As described above, the scraping and unloading device is a self-propelled type in which the soil sand W on the surface of the filter pond K is scraped by the scraping device 1a while being scraped by a predetermined width to form a scraping strip W1. A scraping machine 1; a self-propelled scraping machine 2 for scooping up the scraping strip W1 by a scraping and conveying device 2a to convey and discharge it upward and rearward; and a dirt discharged from the scraping machine 2. Sand W into container 31
Each of the unloading machines 3 and the like, which are received and accommodated in the tank, can be independently driven, whereby each of the working machines can be reduced in weight. Of the airframe can be suppressed as much as possible, the work can be performed accurately and efficiently, and the filter layer can be prevented from being damaged by crushing by its own weight to prevent the filtration performance from impairing the filtration performance. There is such a feature that it is possible to carry out the unloading work and to continue good water purification treatment continuously.

【００３８】尚、上記実施形態においては、掻寄条Ｗ１
を形成する掻寄機１と該掻寄条Ｗ１を掻上る掻上機２と
をそれぞれ単独自走可能な作業機として各別に構成した
が、これに限ることなく図１４に示すように、上記作業
を掻上機２によって同時に行うように構成してもよいも
のである。即ち、同図においてこの掻上機２は掻上搬送
装置２ａの掻上装置２ｂを、前述した掻寄機１の掻寄装
置１ａと略同幅に形成すると共に、掻上装置２ｂ内部に
おいて掻上体６０ａの両側に位置する掻寄装置６１ａを
広幅に構成し、且つ必要により削り板等を設けることに
より簡潔且つ軽量化構造としている。It should be noted that, in the above embodiment, the scraping line W1
The raking machine 1 and the raking machine 2 for raking the raking W1 are separately configured as independently-operable working machines. However, without being limited to this, as shown in FIG. The work may be configured to be performed by the scraper 2 at the same time. That is, in the drawing, the raking machine 2 forms the raking device 2b of the raking and conveying device 2a to have substantially the same width as the raking device 1a of the raking device 1 described above, and also forms a raking inside the raking device 2b. The scraping devices 61a located on both sides of the upper body 60a are configured to have a wide width, and a simple and lightweight structure is provided by providing a shaving plate or the like as necessary.

【００３９】従ってこれによれば、地表の汚砂Ｗを両側
の掻寄装置６１ａによって掻上装置２ｂの内央部に掻寄
条Ｗ１を形成させるように掻寄せながら、これと同時に
掻寄せられた汚砂Ｗを掻上体６０ａによって後方に掻上
げ、既述の如く搬送体２ｃに継送して搬送し追走する搬
出機３に簡単且つ能率よく収容させることができるもの
である。尚、本発明は上述した濾過池の使用に限ること
なく、例えば浜辺の表砂やゴミ等の除去，畑圃場等の客
土の際に行われる表層除去等にも効果的に用いることが
できるものである。Therefore, according to this, while the soil sand W on the ground surface is scraped by the scraping devices 61a on both sides so as to form the scraping strip W1 in the inner central portion of the scraping device 2b, it is scraped at the same time. The contaminated sand W is picked up rearward by the scraping body 60a, and can be easily and efficiently accommodated in the unloading machine 3 which is conveyed and transported by following the transporting body 2c as described above. The present invention is not limited to the use of the filtration pond described above, but can be effectively used for removal of sand and dirt on the beach, removal of the surface layer performed in the case of a soil such as an upland field, and the like. Things.

【００４０】[0040]

【発明の効果】本発明は、以上のような方法と装置にし
たことにより次のような効果を奏することができる。請
求項１の発明により、濾過池等の地表の汚砂等を掻寄装
置によって所定巾に掻取りながら盛土状に掻寄せたの
ち、掻上体で掻上げると共に搬送体で後方に搬送しその
終端部から、この汚砂等を掻上機に追走させる搬出機に
収容させて掻取跡地外に搬出するようにしたので、汚砂
等の掻取搬出作業を各々が単独で自走可能な作業機によ
って行うから、各作業機は必然的に軽量となり掻取つた
汚砂等の重量の影響を軽減して作業機の沈下を抑制する
ことができる。従って、汚砂の掻取と搬出を同一の作業
機によって行う従来のもののように、作業中に汚砂等の
削り量が変化したり過大な踏圧による濾過池の濾過性能
の低下をきたすことなく、汚砂等の掻取搬出作業を良好
に行うと共に、掻取作業を精度よく高能率に行うことが
できる。According to the present invention, the following effects can be obtained by using the above-described method and apparatus. According to the invention of claim 1, after the soil and the like on the surface of the filter pond and the like are scraped in the form of an embankment while being scraped to a predetermined width by a scraping device, they are scraped up by a scraping body and transported backward by a transporting body. From the end, the contaminated sand etc. is stored in the unloading machine that follows the scraping machine and is carried out of the area where the scraping is performed. Since the operation is performed by a simple working machine, each working machine is inevitably lightened, and the influence of the weight of the scraped sand or the like can be reduced to suppress the sinking of the working machine. Therefore, unlike the prior art in which the same working machine is used for scraping and unloading the sand, the shaving amount of the sand and the like is changed during the work, and the filtration performance of the filter pond is not reduced due to excessive tread pressure. In addition, it is possible to perform the scraping operation for scraping sand and the like satisfactorily, and to perform the scraping operation with high accuracy and high efficiency.

【００４１】請求項２の発明により、掻寄装置によって
掻取跡地に形成された掻寄条の汚砂等を掻上機によって
良好に掻上げて搬送体に的確に継送することができる。According to the second aspect of the present invention, the scraping device can satisfactorily pick up the scraped sand and the like formed on the site where the scraping has been made by the scraping device by the scraping machine and can accurately transfer the contaminated sand to the carrier.

【００４２】請求項３の発明により、掻取り搬出装置
を、掻寄装置で汚砂等の掻寄条を形成させる掻寄機と、
該掻寄条の汚砂等を掻上げて後方上方に向けて搬送放出
する掻上搬送装置を備えた掻上機と、該掻上機から放出
される汚砂等を容器に受けて収容搬出する搬出機とで構
成することにより、汚砂等の掻寄せ及び掻上げ並びに搬
出等の作業を各々単独で自走可能な軽量化構造の作業機
で行うことができ、各作業機による濾過池における機体
の沈下を抑制して濾過性能を損なうことのない汚砂等の
掻取搬出作業を能率よく行うと共に、各作業機による作
業を連携させながら精度よく行うことができる。According to the third aspect of the present invention, the scraping and unloading device includes a scraping machine that forms scraped strips such as dirty sand with the scraping device.
A scraping machine equipped with a scraping and conveying device for picking up the dirt and the like from the scraping strip and conveying and discharging the dust upward and rearward; and receiving and transporting the soil and the like discharged from the scraping machine into a container. By carrying out the work such as scraping and picking up of soiled sand, and the work of unloading, it is possible to perform the work independently with a light-weight work machine that can run independently. In this way, it is possible to efficiently perform the scraping and carrying out work of the contaminated sand and the like which does not impair the filtering performance by suppressing the sinking of the machine body at the same time, and to perform the work by each working machine with high accuracy.

【００４３】また、掻寄機の掻寄装置は横軸を中心に回
転し汚砂等を削りながら掻寄条を形成する螺旋体で構成
すると共に、掻上機の掻上装置を横軸を中心に一体的に
回転する上記掻寄装置と掻上体によって上記掻寄条を両
側から掻寄せながら掻上げて、掻上られた汚砂等を搬送
体で受け掻上機の後方上方に向けて搬送するように構成
することにより、掻寄機と掻上機を簡潔で軽量な構成に
することができると共に、両者の連携作業を良好に行う
ことができる。The scraping device of the scraping machine is constituted by a spiral body which rotates about a horizontal axis and forms a scraping strip while shaving the sand and the like. The scraping device and the scraping body, which rotate integrally with the scraping device, scrape the scraping strip from both sides while scraping the scraping strip from both sides, and receive the scavenged sand and the like by the transport body toward the rear upper side of the scraping machine. By being configured to be conveyed, the scraping machine and the scraping machine can be made simple and lightweight, and the cooperation between them can be performed well.

【００４４】請求項４の発明により、上記作業において
掻上機に搬出機を追走させる際、両者間に設置した追突
防止装置によって、両作業機の追突等接当を良好に防止
することができると共に運転を簡単且つ能率よく行うこ
とができる。According to the fourth aspect of the present invention, when the unloading machine is caused to follow the scraping machine in the above-mentioned work, the collision prevention device installed between the two can satisfactorily prevent the two working machines from coming into contact with each other. The operation can be performed easily and efficiently.

【図面の簡単な説明】[Brief description of the drawings]

【図１】（Ａ）は濾過池の汚砂掻取り搬出作業を示す平
面図。（Ｂ）は（Ａ）の各作業を示す斜視図。FIG. 1A is a plan view showing a work for scraping and carrying out dirty sand from a filtration pond. (B) is a perspective view showing each operation of (A).

【図２】（Ａ）は掻寄機の平面図であり、（Ｂ）は
（Ａ）の掻寄装置の拡大背面図。FIG. 2A is a plan view of a scraping machine, and FIG. 2B is an enlarged rear view of the scraping device of FIG.

【図３】掻上機と搬出機の作業状態を示す側面図。FIG. 3 is a side view showing a working state of the scraper and the unloader.

【図４】図３の平面図。FIG. 4 is a plan view of FIG. 3;

【図５】掻上装置の平面図。FIG. 5 is a plan view of the scraping device.

【図６】掻上体の支持構成を示す平面図。FIG. 6 is a plan view showing a support structure of the scraper.

【図７】掻上体の要部を示す側面図。FIG. 7 is a side view showing a main part of the scraping body.

【図８】（Ａ）は支持機構及び昇降機構の構成を示す側
面図。（Ｂ）は昇降ロッドの平断面図。FIG. 8A is a side view illustrating a configuration of a support mechanism and a lifting mechanism. (B) is a plane sectional view of the lifting rod.

【図９】（Ａ）は支持機構の断面図。（Ｂ）は昇降機構
の断面図。FIG. 9A is a sectional view of a support mechanism. (B) is a sectional view of the lifting mechanism.

【図１０】継送装置の構成を示す側面図。FIG. 10 is a side view showing the configuration of the transfer device.

【図１１】掻上機の伝動経路図。FIG. 11 is a transmission path diagram of the scraper.

【図１２】搬出機の平面図。FIG. 12 is a plan view of the unloader.

【図１３】搬出機の側面図。FIG. 13 is a side view of the unloader.

【図１４】（Ａ）は本発明の別実施形態に係わる濾過池
の汚砂掻取り搬出作業を示す平面図。（Ｂ）は（Ａ）の
各作業を示す斜視図。FIG. 14 (A) is a plan view showing a work for scraping and carrying out dirty sand from a filtration pond according to another embodiment of the present invention. (B) is a perspective view showing each operation of (A).

【符号の説明】[Explanation of symbols]

１ 掻寄機 １ａ 掻寄装置 ２ 掻上機 ２ａ 掻上搬送装置 ２ｂ 掻上装置 ２ｃ 搬送体 ２Ｆ 搬送フレーム ２Ｖ 搬送ベルト ３ 搬出機 ５ 支持機構 ７ 昇降機構 ８ 継送装置 ９ 追突防止装置 ３１ 容器 １２，６１ 螺旋体 ５０ 駆動軸 ６０ａ 掻上体 ６１ａ 掻寄装置 Ｗ 汚砂 Ｗ１ 掻寄条 Ｗ２ 掻取跡地 Ｋ 濾過池 Ｋ２ 搬出装置 Ｋ３ 貯溜箇所 REFERENCE SIGNS LIST 1 scraping machine 1a scraping device 2 scraping machine 2a scraping transport device 2b scraping device 2c transport body 2F transport frame 2V transport belt 3 unloader 5 support mechanism 7 elevating mechanism 8 splicing device 9 collision prevention device 31 container 12 , 61 spiral body 50 drive shaft 60a scraping body 61a scraping device W dirty sand W1 scraping strip W2 scraping site K filtration pond K2 unloading device K3 storage location

───────────────────────────────────────────────────── フロントページの続き (72)発明者 遠藤 道也 島根県八束郡東出雲町大字揖屋町560番地 ３ 菱農エンジニアリング株式会社内 (72)発明者 矢藤 博隆 島根県八束郡東出雲町大字揖屋町560番地 ３ 菱農エンジニアリング株式会社内 (72)発明者 仙波 貞夫 茨城県竜ケ崎市長山１丁目10番21号 (72)発明者 岡村 整 東京都三鷹市上連雀８丁目７番28号 (72)発明者 田中 淑介 東京都多摩市永山６丁目４番９号 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Michiya Endo 560, Iya-cho, Oji, Higashi-Izumo-cho, Yatsuka-gun, Shimane Prefecture Within Rishino Engineering Co., Ltd. 560 No. 3 Ryono Engineering Co., Ltd. (72) Inventor Sadao Senba 1-10-21 Nagayama, Ryugasaki City, Ibaraki Prefecture (72) Inventor Osamu Okamura 8-28-7, Kamedarijaku, Mitaka City, Mitaka City, Tokyo (72) Invention Person Yusuke Tanaka 6-4-9 Nagayama, Tama-shi, Tokyo

Claims (4)

【特許請求の範囲】[Claims] 【請求項１】 緩速濾過池等の地表の汚砂等を、専用の
掻寄機又は掻上機に設けた掻寄装置で所定巾に掻取りな
がら掻寄せて盛土状の掻寄条を形成し、該掻寄条の汚砂
等を上記掻上機によって地面から掻上げる共に後方に搬
送し、その終端部から掻上機に追走させる搬出機に設け
た容器内に収容させて、収容された汚砂等を上記搬出機
によって掻取跡地外に搬出する汚砂等の掻取り搬出方
法。1. A scraping device which is provided on a dedicated scraping machine or a scraping machine and scrapes a predetermined width to remove soil and the like on the surface of a slow filtration pond to form an embankment-shaped scraping strip. Formed, scraped sand and the like of the scraping line are scraped off from the ground by the scraper and conveyed backward, and stored in a container provided in an unloader that follows the scraper from its end, A method for scraping and carrying out dirty sand or the like, in which the contained waste sand or the like is carried out of the scraping site by the above-described unloading machine. 【請求項２】 掻上機は、掻寄条の両側から汚砂等を内
央部側に掻寄せながら後方上方に向けて搬送させる請求
項１の汚砂等の掻取り搬出方法。2. The method according to claim 1, wherein the raking machine conveys the dirt and the like upward and rearward while scraping the dirt and sand from both sides of the strip. 【請求項３】 掻寄装置によって地表の汚砂等を所定巾
で掻寄せて掻寄条を形成する自走型の掻寄機と、前記掻
寄条を掻上装置によって掻上げて後方上方に向けて搬送
し放出する自走型の掻上機と、該掻上機から放出される
汚砂等を容器に受けて収容する搬出機とで汚砂等の掻取
り搬出装置を構成すると共に、前記掻寄機及び掻上機の
掻寄装置を、横軸を中心に回転することにより地表を削
りながら掻寄せて掻寄条を形成する螺旋体で構成すると
共に、上記掻上機には掻寄装置に連設した掻上体と該掻
上体の後方に連設する搬送体等からなる掻上搬送装置を
設けたことを特徴とする汚砂等の掻取り搬出装置。3. A self-propelled scraping machine which forms scraped strips by scraping dirty sand or the like on the ground with a predetermined width by a scraping apparatus, and a scraping device which scrapes the scraped strips upward and rearward. A self-propelled scraping machine that conveys and discharges the wastewater, and an unloader that receives and stores the soil and the like discharged from the scraper in a container to form a scraping and unloading device for the soil and the like. The scraping device of the scraping machine and the scraping machine is constituted by a spiral body which forms a scraping strip by scraping while shaving the ground surface by rotating about a horizontal axis. A scraping and carrying-out device for scraping sand and the like, comprising a scraping and conveying device comprising a scraping body connected to a pulling device and a transferring body and the like connected to the rear of the scraping body. 【請求項４】 掻寄機及び掻上機並びに搬出機のうち、
少なくとも掻上機と搬出機間に追突を防止する追突防止
装置を設置する請求項３の汚砂等の掻取り搬出装置。4. A scraping machine, a scraping machine and an unloading machine.
4. The apparatus for scraping and discharging dirty sand and the like according to claim 3, further comprising a rear-end collision preventing device for preventing rear-end collision between the scraper and the unloader.