| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a direct blow-molded vessel which can be easily manufactured by the direct blow molding, and has excellent resistance against internal pressure and self-standing property. SOLUTION: This direct blow-melded vessel 10 is molded by the direct blow molding, and has curved surface parts and support leg parts 13 on a bottom surface part 11 thereof. The support leg parts 13 are formed so that all line segments 21 directed outwardly in the horizontal direction from a center side of the bottom surface part 11 passing through a side wall surface 19 of the support leg parts 13 connected to the curved surface parts 12 form an angle of >=90 deg. from the curved surface parts 12 with respect to a parting surface 17 with the bottom surface part 11 viewed in plan. Four curved surface parts 12 are provided in a radial direction so that the axis 16 is at the position of 45 deg. with respect to the parting surface 17, and four support leg parts 13 are provided in a radial direction so that the axis 18 is at the position of 0 deg. and 90 deg. with respect to the parting surface 17.</p> |
