Abstract A metal mold for forming and attaching a shoe sole to the bottom of a lasted upper comprising a bottom part, a surrounding side part open at the top across which a lasted shoe upper is adapted to be supported and a lining disposed within the cavity constituted by the bottom and surrounding side part comprised of a plastic material which has been molded to a pattern of the bottom to be formed so as to correspond to the exact configuration of the bottom. The lining is detachably attached to the mold to enable replacing it with a lining of a different configuration to adapt the mold to the manufacture of shoes with a variety of bottom formations, and when employed in conjunction with a split mold, that is, one in which the side part is formed in two halves so as to be movable laterally with respect to the bottom part, the side parts of the lining are integrally connected at the heel end to enable moving them away from each other with the lateral movement of the side parts of the mold. The lining is preferably comprised of polyurethane resin and is relatively thin so that the heat from the molded material diffuses quickly to the surrounding metal of the mold.
A mold comprising a bottom part and surrounding side parts divided medially and open at the top and bottom such that the bottom part may be moved upwardly within the surrounding side parts, said bottom and side parts bring comprised of metal and plastic lining members attached to the respective inner sides of the bottom and side parts, the inner surface of which corresponds in exact configuration to the bottom to be formed wherein a web integrally connects the plastic lining members attached to the side parts at the heel end, and said web contains a notch constituting a hinge which permits lateral separation of the sidE parts of the lining.
Claim 2
Dependent Claim
111 words
A mold comprising a bottom part and surrounding side parts divided medially and open at the top and bottom such that the bottom part may be moved upwardly within the surrounding side parts, said bottom and side parts bring comprised of metal and plastic lining members attached to the respective inner sides of the bottom and side parts, the inner surface of which corresponds in exact configuration to the bottom to be formed wherein a web integrally connects the plastic lining members attached to the side parts at the heel end, and said web contains a notch constituting a hinge which permits lateral separation of the sidE parts of the lining.