US 2007/0178184 A1 · Molding die unit

Abstract

A molding die unit has a shell and a die. The die is located inside the shell. A die hole is formed in the die. The die has first and second portions. The first and second portions include their respective surfaces defining the die hole and facing each other. A first through hole is formed in the shell and penetrates so as to open in an outside surface and in an inside surface of the shell. A second through hole continuing to the first through hole is formed at a position corresponding to the first through hole and in the first portion. The second through hole includes a first region and a second region. The first region opens in a surface of the first portion facing the inside surface of the shell and has a first sectional area. The second region opens in the surface defining the die hole and has a second sectional area smaller than the first sectional area.

Claims4

Dependent claims

A molding die unit comprising:

a shell;
and
a die which is located inside the shell and in which a die hole is formed;
wherein the die has first and second portions comprising respective surfaces defining the die hole and facing each other;
wherein a first through hole is formed in the shell and penetrates the shell so as to open in an outside surface and in an inside surface;
wherein a second through hole continuing to the first through hole is formed in the first portion;
and
wherein the second through hole comprises a first region which opens in a surface of the first portion facing the inside surface of the shell and which has a first sectional area, and a second region which opens in said surface defining the die hole and which has a second sectional area smaller than the first sectional area.

5 more elements

Dependencies are inferred from the claim text.

Molding die unit

Life of this patent

Molding die unit

Life of this patent

Abstract

Claims4