| 摘要 |
Hand hydraulic pliers have hydraulic cylinder (5,6), which produces working force by pressing arm (4) by hand, and force is transferred through channel, through case (7) to yoke (3) over cylinder and cylinder lifts arc channel, and working force is transferred around joint to upper jaw (3) which carries mounting blade (1), and in such a way jaws of pliers are closed. Lower lever of pliers with case (7) and lower jaw (2) makes one unit which is connected to an upper arm (4) by joint connection. By opening arm (4) and based on the hydraulic principle of connected vessels, jaws of pliers (2) are opened with one move, and cutting operation with blades (1) is performed by closing of jaws (2) in one move of arm (4). Cutting operation can be performed with more than one grip, by pressing arm (4), and opening of jaws and return of oil into cylinder is made possible due to spring (18) after pressing button (9).
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