| 摘要 |
<p>PROBLEM TO BE SOLVED: To temporarily reduce the volume of a bottle and increase the loading and transporting efficiency, by forming a variable part which is expanded from a specified plane and which is deformable and restorable within an elastic deformation range on the wall face of the bottle body. SOLUTION: This bottle constituted of the opening cylinder 2, the body 3 and the bottom 4, is molded by the blow molding by use of a raw material such as PET, high density polyethylene or other flexible but rigid synthetic resin. Semicircular variable ribs 11a, 11b, 11c, 11d are arranged on the four vertical planes mutually making right angles positioned in the inner side by a certain distance from the outer periphery of the peripheral wall 9. And further, four variable ribs 16a, 16b, 16c, 16d which are vertically symmetrical against the above variable ribs, are formed at the lower peripheral wall 10. The upper variable ribs are formed for reinforcement and folding parts of the body wall. The whole variable faces 17 of the bottle 1 are deformed reversely by a snapping motion and the volume is reduced. The volume is restored by blowing compressed air therein.</p> |
