| 摘要 |
Provided is an arrow shaft having a front and rear two stage spine structure and including a front end to which an arrowhead is coupled and a rear end to which a nock is coupled, wherein the arrow shaft has a hollow tubular shape and is divided and defined into a front part and a rear part in a longitudinal direction thereof such that spine strengths of the arrow shaft are different between the front part including a center of gravity of the arrow shaft and the rear part to which the nock is coupled; wherein the front and rear parts of the arrow shaft are formed by an arrow shaft shaping sheet constituted of three layers; wherein an uppermost layer of the arrow shaft shaping sheet includes a front sheet and a rear sheet respectively formed of a carbon fabric sheet each having different elastic strengths. |
