| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem in a conventional structure of valve plate that the working manhour or number of part items for setup is increased to raise the cost because the positioning of a valve plate to be mounted on an oil passage requires the formation of a fixing hole in the valve plate or formation of a pin hole in a mounting surface, and a pin member for connecting the valve plate to the oil passage plate. SOLUTION: In the valve plate 41 of a plunger type hydraulic pump 21 or hydraulic motor 22 to be set up in the oil passage plate 32 and interposed between the oil passage plate 32 and a plunger block 21b, a recessed part 32b is formed on the valve plate mounting surface 32a of the oil passage plate 32 along the outer diameter shape of the valve plate 41, and the valve plate 41 is fitted to the recessed part 32b, whereby the valve plate 41 is set up.</p> |
