Patent attributes
A manufacturing method for manufacturing a tire vulcanization mold may include: providing a projection that projects in the thickness direction midway in the vertical direction of the blade; providing a communicating portion that extends from below the projection to above the projection and that penetrates the blade in the thickness direction; forming the exhaust groove on the tire molding surface so the initial thickness of the exhaust groove is thinner than the thickness of the projection; inserting and positioning the bottom end of the blade in the exhaust groove; forming a small gap between an upper side portion of the projection of the embedded blade and the exhaust groove by embedding the positioned blade by press fitting in the depth direction into the exhaust groove while expanding the exhaust groove in the thickness direction by the projection; and linking the small gap and the exhaust hole through the communicating portion.
