Yoshino Kogyosho Co., Ltd.

Masanori Kimura

Naohito Hara

Nobuichi Seki

A holding jig for such a preform formed of a synthetic resin into a bottomed cylindrical shape as is to be assembled by inserting a mouth cylinder portion to an insertion limit into the leading end portion of a cylindrical jig body having a pin inserting bore formed therethrough at its center for a drawing pin to be inserted thereinto. The holding jig comprises a support portion disposed in the inner circumference of the leading end portion of the jig body at a position to confront a peripheral projecting ridge of the mouth cylinder portion, for making such external contact with the outer circumference of the peripheral projecting ridge as to insert and extract of the mouth cylinder portion, thereby to hold the assembled posture of the preform. The holding jig can hold the preform stably in a predetermined posture thereby to achieve a high productivity for the biaxial orientation blow-molded bottle.

Growing community of inventors

Tokyo, Japan

Naohito Hara