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US 2024/0286338 A1Published application
Mold for blow molding, method for manufacturing resin container using same, and resin container
AssigneeNissei Asb Machine Co., Ltd.
InventorMasayuki USAMI
Life of this patent
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Abstract
A blow molding mold in which a holding mechanism is independently provided to a bottom mold and is configured to be capable of gripping a protruding portion provided to a bottom portion of a preform independently of a gate portion, and a rotation mechanism is configured to be capable of rotating the bottom mold, relative to a neck portion of the preform which is in a stationary state held by neck molds, in a state where the protruding portion is gripped by the holding mechanism.
Claims6
A blow molding method comprising:
- gripping a protruding portion, which is provided to a bottom portion of a preform accommodated in a blow molding mold independently of a gate portion, by a holding mechanism independently provided to a bottom mold of the blow molding mold, in a state where split molds of the blow molding mold are opened;
- bending the preform by rotating the bottom mold which is gripping the protruding portion relative to a neck portion of the preform which is in a stationary state held by a neck mold;
- and
- closing the split molds and stretching the preform by a pressurizing medium so as to obtain the container according to claim 3.
1 more element
A container made of resin, the container comprising:
- a neck portion having an opening;
- a body portion continuous to the neck portion and defining a sidewall part;
- and
- a bottom portion continuous to the body portion,
- wherein an inclination angle between an axis passing through a center of the opening and orthogonal to an opening surface formed by the opening and an axis extending in a vertical direction of the container is equal to or larger than 50° and equal to or smaller than 80°, and
- wherein when a direction extending in a horizontal diametrical direction of the opening is referred to as a width direction of the container and a horizontal direction orthogonal to the width direction is referred to as a depth direction of the container, a length in the width direction and a length in the depth direction of a horizontal section of the body portion are different from each other.
3 more elements
Dependencies are inferred from the claim text.