| 摘要 |
PROBLEM TO BE SOLVED: To provide an assembly shaft and a cam shaft in which a play (gap) is not brought at all between parts and a highly binding strength is brought and further, parts can be fitted with pressure in turn after completion of the grooving work at the mounting positions for respective parts on the shaft, which reduces man-hour and costs both for manufacturing. SOLUTION: In the assembly shaft which is constituted by inserting with pressure a plurality of fitted bodies on the outer periphery of the shaft, the portion on which the fitted body is inserted with pressure on the outer peripheral face of the shaft is formed in irregularities. The outside diameter of one end side of the shaft is made larger than the outside diameter of the other end side in the shaft with irregular face, and the outside diameter of the intermediate section has an intermediate-sized diameter between the one end side and the other end side to form axially stepped shape, respective inside diameters of plural fitted bodies are formed in inside diameters corresponding to the portion with the irregular face. In this way, the structure is so constituted that a plurality of fitted bodies can be inserted with pressure from the smaller diameter side to the larger diameter side.
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