Toyo Seikan Kaisha, Ltd.

Akihito Morimura

Masaki Miura

Yosuke Yasuda

Shinichi Miyazaki

Nobuhiro Kishida

Minoru Yoshino

An apparatus for the preparation of a vessel having a handle, which includes an injection mold having a cavity for forming a handle having an endless holding portion and an endless attachment portion; an injection molding mechanism for injecting a resin for the handle into the cavity of the injection mold; a blow-forming or draw-blow-forming split mold having a parting surface that can be closed, cavity assembly which is arranged in the split mold plane-symmetrically with the parting surface and includes an inserting cavity for containing the handle therein, and a forming cavity which has a neck-forming cavity, a barrel-forming cavity, a closed bottom-forming cavity, a recess-forming cavity formed at a part of the barrel-forming cavity so that the diameter of a deepest part of the recess-forming cavity is substantially equal to or slightly larger than the diameter of the neck-forming cavity, a projection-forming cavity for forming a projection to project and extend through the attachment portion almost to the center of the recess-forming cavity, and a flange-forming cavity formed on the top end of the projection-forming cavity to have a section expanded over the projection-forming cavity; a mechanism for supplying a blowing pressure into a preform held by the split mold to effect blow-forming or draw-blow-forming of the preform; a pushing pin that can be pressed into the flange-forming cavity; and a pushing pin-driving mechanism.

Apparatus for preparation of synthetic resin vessel having a handle

A synthetic resin bottle has a main body of synthetic resin molded in accordance with biaxial orientation. A handgrip is provided which has an attaching section surrounding a handgrip supporting portion of the main body, and a handgrip section extending outwardly and integrally from the attaching section. The handgrip is molded by means of injection molding to attach integrally to the body.

Growing community of inventors

Tokyo, Japan

Akihito Morimura