| 摘要 |
An assembled camshaft (10) is provided with: a shaft member (20) which rotates in association with the rotation of the crankshaft of an internal combustion engine; and a joined cam lobe (30) having integrally formed thereon, a pair of cam lobes (30A, 30A) equipped with rollers (32) and driving a pair of intake valves or a pair of exhaust valves, the pair of intake valves or the pair of exhaust valves being used in the same cylinder of the internal combustion engine, the joined cam lobe (30) also having integrally formed thereon, a journal section (30B) provided between the pair of cam lobes (30A, 30A), the joined cam lobe (30) having a mounting hole (30h) through which the shaft member (20) is inserted. A key (34) which, in at least the journal section (30B), extends in the axial direction of the shaft member (20) is fitted between the outer peripheral surface of the shaft member (20) and the inner peripheral surface of the mounting hole (30h). |
