| 摘要 |
<p>PROBLEM TO BE SOLVED: To amplify the stroke of a strike and to transmit the amplified strike to the tip of a rod. SOLUTION: A primary short cylinder 11 having a large cross-section area and a secondary long cylinder 12 having a small cross-section area are coaxially formed in the opposite directions. The cylinders are slidably equipped with pistons 13 and 14, respectively and piston rods 13a and 14a extended from each piton are stretched to the outside of the cylinders. The piston rod through parts of the cylinders are sealed with packings 16 and 17. Inside liquid chambers 11a and 12a of both the cylinders are made to communicate each other at the bottom part. Outside liquid chambers 11b and 12b are made to mutually communicate by a communicating pipe 19. The interiors of both the cylinders 11 and 12 and that of the communicating pipe 19 are charged with a hydraulic fluid 20. A fishing line 23 introduced from a rod is passed through a balance and tied to the tip of the piston rod 14a. A hook element 25 for binding a hook is connected to the piston rod 13a.</p> |
