Patent ID: 7833451

Claim:
A mold in which a cavity is formed between at least a first half and a second half, for molding a product in the cavity, the first half comprising: an insert member forming a cavity surface on one end side; a body member having an insertion part into which the insert member is inserted; and an insert member fixer interposed between the insert member and the insertion part of the body member, for holding the insert member, wherein the insert member fixer is made of a shape memory alloy, wherein, when the insert member fixer restores its memorized shape, the insert member fixer presses and holds the insert member such that a center axis alignment of the insert member with respect to the body member is performed, wherein the insert member fixer has gathers protruding toward the insert member in a state where the insert member fixer restores its memorized shape, at least when a product is molded, to press and hold a peripheral wall of the insert member inside an inner wall of the insertion part, and wherein each of said gathers has a wedge-shape cross section.