| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a target frame for Japanese archery enabling saving of a transportation space or a storage space, and mass production in stable quality at low cost, reduction in manufacturing cost, and inexpensive and easy repair, preventing an arrow from being scarred or damaged even when the arrow hits the target rame, and capable of attaining abundance in design.SOLUTION: This invention relates to a cylindrical target frame 10 made by: cutting a paper pipe or foamed styrol pipe having a diameter of about 36 cm and a thickness of about 2 to 5 mm into a width of about 12 cm perpendicular to its central axis to manufacture a cylindrical intermediate component; dividing the intermediate component in bisect, trisect, and quadrisect by a plane passing through the central axis to manufacture a final component 71 having a central angle of 180°, 120° or 90°; and then connecting sections of the final product in radial direction to each other with an adhesive agent.</p> |
