| 摘要 |
<p>PURPOSE:To stably and continuously hold a completely folded shape by forming one of faces into a different size via a stage with a parting line as a border even if front and rear faces of a bottle body are almost similar to each other. CONSTITUTION:A body shape 10 is constituted wherein either one of a front face or a rear face of a body 3 forms a body which stands up slantly upward after a stage having a gentle recess once with a parting line 13 of both body sides as a border, while the other face forms a stage slantly standing up without forming the stage from the parting line 13. Thus, the front side and the rear side of the body 3 are formed in almost similar shapes having different sizes, so that a smaller area side of the front or rear can be pushed into a larger area side to be folded into a boat-like shape, whereby a bottle volume can be largely reduced at the time of discarding.</p> |
