Resin-made container, resin-made container manufacturing method, resin-made container manufacturing apparatus, and mold
AssigneeNissei Asb Machine Co., Ltd.
InventorMasayuki Usami
Life of this patent
Estimating the term…
Abstract
This resin-made container is provided with: a neck portion having a content inlet-outlet portion; a lateral surface portion connected to the neck portion; and a bottom portion that is disposed on the side opposite to the neck portion and that is connected to the lateral surface portion. The resin-made container is produced by a stretch blow molding process. The bottom portion has formed therein a bulge section that protrudes downward in the vertical direction. The bulge section is disposed in an eccentric region, of the bottom portion, positioned outside a region demarcated by perpendicularly projecting an opening plane of the inlet-outlet portion of the neck portion.
Claims2
A resin-made container, comprising:
- a neck portion having an inlet-outlet portion for contents;
- a lateral surface portion connected to the neck portion;
- and
- a bottom portion disposed on an opposite side to the neck portion and connected to the lateral surface portion,
- wherein the bottom portion is formed with a bulge portion protruding vertically downward,
- wherein the bulge portion is positioned in an eccentric region of the bottom portion, the eccentric region being out of a region perpendicularly projected from an opening plane of the inlet-outlet portion of the neck portion,
- wherein a top plane of the inlet-outlet portion of the neck portion and a bottom surface of the bottom portion are parallel to each other,
- wherein the resin-made container is manufactured by a stretch blow molding method,
- wherein an angle between a first line and a second line is equal to or greater than 7°, the first line passing through a center of the opening plane and being orthogonal to a ground contact surface of the bottom portion, the second line connecting an intersection point of a vertical line passing through a center of the bulge portion and intersecting with the ground contact surface of the bottom portion and the center of the opening plane,
- wherein the bulge portion comprises:
- a gate portion;
- and
- a protrusion located above gate portion and provided independently of the gate portion, and
- wherein the protrusion is wider than the gate portion.
Dependencies are inferred from the claim text.