A tire mold comprises a plurality of sector molds (51) for forming a tread portion of a tire and a plurality of mold pins (60) provided on the plurality of sector molds for forming insertion holes in the tread portion. The insertion holes each comprise a first hole portion with a first inner diameter where a body portion of a stud pin is disposed and a second hole portion with a second inner diameter greater than the first inner diameter where a bottom flange portion of the stud pin is disposed. The plurality of mold pins each comprise a trunk portion with a first outer diameter for forming the first hole portion and a tip portion with a second outer diameter greater than the first outer diameter for forming the second hole portion. The first outer diameter of the trunk portion of an end mold pin (60A) provided in an end region of each of the plurality of sector molds is greater than the first outer diameter of the trunk portion of a middle mold pin (60B) provided in a middle region of each of the plurality of sector molds.
TIRE MOLDING DIE AND PNEUMATIC TIRE
REIFENFORMWERKZEUG UND LUFTREIFEN
MATRICE DE MOULAGE DE PNEU ET PNEUMATIQUE
2018-10-24
Patent
Elektronische Ressource
Englisch