| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a synthetic resin bottle which can keep a collapse strength surely improved in the leg part even when the capacity change relative to the decompression of the inside of the bottle is small. <P>SOLUTION: The bottom part 4 of this synthetic resin bottle comprises a leg part 6, a reversible inclining part 7 which is freely and irregularly reversible toward the inside and the outside of a barrel 3 and a bottom center part 8. The leg part 6 is formed with a plurality of recesses 13 with predetermined intervals peripherally. A plurality of downward protrusions 14 are formed by each of the recesses 13 between the recesses 13 and the bottom end face of the protrusions 14 is a contact face 9. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
