| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve a problem in which: the conventional rake for digging shellfish and the like were dangerous since a sharp portion was exposed; and when digging out shellfish, collection efficiency was poor since sediment resistance was large, and it caused the time and effort to find shellfish from the dug sediment as well as oversight of shellfish.SOLUTION: In a shellfish digging equipment 1, a digging part 4 with a form supporting a flat-bar edge with both ends is attached to a handle part. Since there is no sharp portion, injury and damage to an article are hardly caused. By using this equipment and digging a surface of sediment like plowing, it is possible for an operator to detect 7 a position of shellfish 6 while being buried with a touch feel and to pick it up after visually recognizing the shellfish. By this, oversight of the shellfish is reduced; it is not also required to dig up the sediment more than necessary; and the time and effort to find the shellfish in the dug sediment can be reduced. Also, by widening the width of the digging part, it is possible to dig a wide range at one time as compared to the conventional rake, and thereby increasing collection efficiency.</p> |
