| 摘要 |
PROBLEM TO BE SOLVED: To provide a windmill accessory capable of achieving stable rotational movement.SOLUTION: A windmill 100 includes a shaft hole 101 in which a tapered hole 123 extending in a direction of a rotational axis X, a first bearing hole 114 provided on a front end side in the direction of the rotational axis X of the tapered hole 123, and a second bearing hole 124 provided on a rear end side in the direction of the rotational axis X of the tapered hole 123 are coaxially formed. The hole diameter of the first bearing hole 114 is larger than outer diameters of a shaft part 91 of a windmill nail 90 and a knurl part 92, and smaller than an outer diameter of a head part 94. The hole diameter of the second bearing hole 124 is substantially the same as the hole diameter of the first bearing hole 114. The hole diameter of the tapered hole 123 is larger than the hole diameters of the first bearing hole 114 and the second bearing hole 124. |
