| 摘要 |
This piston assembly 10 is provided with a piston 44, a piston pin hole 46, a piston pin 28, a fixing pin 48, a piston-side fixing pin hole 50, and a piston-pin-side fixing pin hole 52. The piston pin 28 has, on an end surface 64 exposed from the piston pin hole 46: a hole direction clarification part 68 through which the hole direction of the piston-pin-side fixing pin hole 52 is clarified; and a rotation adjustment part 68 for rotating and positioning the piston pin 28 on the basis of the hole direction clarification part 68, so that the piston-pin-side fixing pin hole 52 is aligned with the piston-side fixing pin hole 50. |
