The names of the various parts of the mud
sampler are shown in Fig. 2-① through ⑧. The ①grab bucket, which grabs the
sediment, is housed in a ②metal support frame. The semi-cylindrical bucket is
divided into two parts (open) at the center, and can be opened and closed by
moving the ③bucket arm welded to the outside. A wire rope (④closing wire) is
connected to the end of the bucket arm to lift up the mud collector. When the
winch wire is wound up after landing on the bottom, the closing wire connected
to the winch wire pulls the bucket arm outward, closing the bucket.
The two ⑤bottom landing plates and ⑥bottom
landing plate arms protruding below the support frame serve as the trigger for
mud collection. When the trigger operates, the ⑦bucket support frame is pushed
down by the force of the ⑧spring, and the bucket is pressed against the seabed.
The operation of each part is explained in detail in the next chapter.
