| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a weight for measuring the water depth at a fishing spot based on the state of sinking of a float, easy to be attached/detached, and not coming off a fishhook due to e.g. the shock when plunged. <P>SOLUTION: This weight for measuring water depth has the following structure: a cylinder 1 stuck with a fishhook 4 is attached to a hook 2 which, in turn, is mounted with an overload weight 3 for sinking the float, thus ensuring the weight from coming off the fishhook 4. <P>COPYRIGHT: (C)2003,JPO</p> |
