US 2006/0131788 A1 · Molding method, mold for molding, molded product, and molding machine

Abstract

Before completion of a mold closing step of a mold apparatus, a movable member of one mold is pressed against the other mold, the movable member partially defining a cavity of the mold apparatus; charging a molding material into the cavity of the mold apparatus is started; and after completion of the mold closing step, a mold clamping step of the mold apparatus is performed so as to produce a molded product. The movable member, which partially constitutes a mold, is operated in the mold closing step so as to prevent leakage, through a clearance between parting faces, of a molding material which has begun to be charged into a cavity of the mold before completion of the mold closing step, whereby, even when the mold has a simple structure using no special component members, a molded product having a shape resembling that of a three-dimensional, deep-bottomed, concave container having a thin side wall can be produced in short time.

Claims10

Dependent claims

A molding method characterized by comprising:

(a) pressing, before completion of a mold closing step of a mold apparatus, a movable member of one mold against the other mold, the movable member partially defining a cavity of the mold apparatus;
(b) starting charging of a molding material into the cavity of the mold apparatus;
and
(c) performing, after completion of the mold closing step, a mold clamping step of the mold apparatus so as to produce a molded product.

1 more element

Dependencies are inferred from the claim text.

Molding method, mold for molding, molded product, and molding machine

Life of this patent

Molding method, mold for molding, molded product, and molding machine

Life of this patent

Abstract

Claims10