| 摘要 |
PURPOSE: A nock of an arrow is provided to prevent the nock from being separated from an arrow shaft by alternately forming multiple ridges and elongated holes on the outer surface of a body unit. CONSTITUTION: A nock(100) of an arrow comprises a hollow cylindrical body unit(110) and a head unit(120). The body unit is inserted into an arrow shaft. The head unit is stepped and extended from the body unit. The head unit comprises a pair of wings(121a,121b). Multiple ridges(112) are formed on the outer surface of the body and are protruded in parallel to the axial direction of the arrow shaft. Elongated holes(113) are perforated between the ridges.
|
