| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain a synthetic resin bottle container in which contents such as a liquid-like substance can be filled at a high temperature by improving strength of a mouth of a container body so that heat distortion is not likely to occur. SOLUTION: A mouth 11 of the bottle container 1 is equipped with an engaging part 12 comprising a large diameter part 121 provided at a rim and a small diameter part 122 provided under it. A reinforcing part 13 is formed to be thick so that an outer face broadens downward along an entire periphery on a lower part of the small diameter part 122. A flange 14 protruding outward is provided along an entire periphery on a lower face of the small diameter part 122. A cap base 2 is mounted on the engaging part 12. An inner engaging part 21 fitted with the large diameter part 121, the small diameter part 122 and the reinforcing part of the engaging part 12 to be out-fitted is provided on a lower part of the cap base 2.</p> |
