| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a blow-molded bottle capable of forming a plurality of reinforcing ribs at a parts where a bottom wall is extended or formed, sufficiently ensuring the ring width of a ground contact wall portion on the short radius direction side, excellently forming a bottom wall having a plurality of reinforcing ribs, and demonstrating the stable "seating" function. <P>SOLUTION: In the flat blow-molded bottle, a dome wall portion 12 inside a ground contact wall portion 11 of a bottom wall 10 of a bottom part 8 consists of a spherical arc-shaped dome main portion 15 with an extension center portion located thereon, and a dome skirt portion 14 with the width being not regulated uniformly. Thus, the width of the ground contact wall part 11 can be set freely. Further, since reinforcing ribs 16 are provided on a part of the dome skirt portion 14 of the long radius area D, this reinforcing ribs 16 can be well molded. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
