| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a synthetic resin-made container having excellent external shape and ensuring rigidity. <P>SOLUTION: In the bottle type synthetic resin-made container in which portions from a mouth part 1 to spout the content to a shoulder part 3, a barrel part 4 and a bottom part 5 through a neck part 2 are integrally formed respectively, at least one annular groove 8 which extends along the periphery and is horizontally opened is formed in a boundary between the barrel part 4 and the bottom part 5, and a recessed part 9 which has an upper edge 9a adjacent to the annular groove 8, forms an overhung side wall between a ground contact face edge 5a of the bottom part 5 and the upper edge 9a to adapt a positioning tool of the container is formed immediately below the annular groove 8. The annular groove 8 has the shape of the trapezoidal section formed of an upwardly inclined wall 8b and a downward inclined wall 8c which are continuous to a bottom wall 8a and above and below the bottom wall 8a, while the annular groove of the adjacent area of the upper edge 9a, the bottom wall 8a is inclined at a part corresponding to a center in the width direction of the upper edge 9a, and the degree of inclination of the downwardly inclined wall 8b connected thereto with respect to the bottom wall 8a is reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
