PROBLEM TO BE SOLVED: To provide a grab bucket for dredging of a simple structure that may be manufactured at low costs and efficiently discharges excess water regardless of whether the scooped amount fills the bucket capacity or not.SOLUTION: A grab bucket for dredging has drainage holes 15, 16, each with a lid, along the upper edge of a scoop plate 2 of bucket shells 1,1, so that the water inside the bucket shell 1 is discharged from the drain holes 15, 16 when scooping water bottom sediment. Furthermore, lids 19, 20 that rotate around the position below the lower edge of the drainage holes are fitted on the drainage holes 15, 16 on the inner side of the bucket shell, along with an angle controlling member that retains the lids in an erected position from the inner surface of the bucket shells 1, 1 when the lids are open. When the sediment scooped into the bucket shells reaches the position of the lids, the lids rotate in the direction to close the drainage holes due to the pressure of the sediment.

    【課題】簡単な構造で廉価に製造でき、バケットの容量に満たない量の掬い取りからバケット容量いっぱいまでの掬い取りの何れの場合にも、余水排出が効果的になされる浚渫用グラブバケットを提供する。【解決手段】バケットシェル1,1の掬い板部2の上縁側に、開閉蓋付の水抜き口15,16を有し、水底土砂の掬い取り時に、バケットシェル1内の水が、水抜き口15,16から排出されるようにし、水抜き口15,16のバケットシェル内側にあって、水抜き口の下縁部下位置を中心にして回動可能に開閉蓋19,20を取り付けるとともに、その開閉蓋が開き状態の時に、バケットシェル1,1の内面から立ち上がった状態に維持させる角度規制部材を備え、両バケットシェル内に掬い取られた土砂が、開閉蓋位置に達することによりその土砂の圧力によって開閉蓋が水抜き口を閉じる側に回動されるようにする。【選択図】図1


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    Title :

    GRAB BUCKET FOR DREDGING


    Additional title:

    浚渫用グラブバケット


    Contributors:

    Publication date :

    2015-11-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E02F Baggern , DREDGING / B66C Krane , CRANES



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