Method of molding a multi-injection molded body
AssigneeNissei Jushi Kogyo Kabushiki Kaisha
InventorsToshiyuki Kanai, Nobuo Shinnoh
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Abstract
A method wherein, when a multi-injection molded body made of at least a first and a second resins is molded, catching means are formed generally by pressing a part of the surface about an opening of a concave section formed in a first molded body made of the first resin to project interior side wall faces of the concave section inward, and injecting a second resin to mold a second molded body in the concave section. The multi-injection molded body thus formed has catching means in the concave section, so that the second molded body is tightly fixed to the first molded body.
Claims11
A method of molding a multi-injection molded body, which comprises at least a first molded body consisting essentially of a first resin and a second molded body consisting essentially of a second resin, the method comprising:
- injection molding the first body so that on a surface thereof which is to be joined to the second body, there exists a concave section which opens on said surface;
- reshaping the first body and thereby projecting at least a portion of a sidewall of said concave section inward to form an undercut section in the concave section;
- and injecting said second resin into the concave section having said undercut section therein and into a cavity of a mold, in order to mold the second body tightly fixed to the first body by the undercut section.
Dependencies are inferred from the claim text.