Patent ID: 11931947
Assignee: NISSEI ASB MACHINE CO., LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. An injection molding mold comprising:
the injection core mold according to claim 4; and
an injection cavity mold for injection-molding the bottomed preform made of resin,
wherein the injection cavity mold includes:
an inner bottom portion configured to define an outer shape of the bottom portion of the preform;
an inner wall portion configured to define an outer shape of the body portion of the preform; and
an opening portion positioned on a side opposite to the inner bottom portion with the inner wall portion being provided between the opening portion and the inner bottom portion, and

wherein a groove that extends from the inner bottom portion to the opening portion is formed in a surface of the inner wall portion.