Patent ID: 11905073
Assignee: DAIWA CAN COMPANY
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 3:
4. A mold comprising:
a lower mold including a recess formed in a same shape as an outer shape of a top plate portion of a molded product constituting a cap body formed with the top plate portion and a skirt portion integrally provided with the top plate portion through a curved corner portion having an annular shape and an outer shape of at least a part of the corner portion;
a first upper mold which has an outer diameter equal to an inner diameter of the skirt portion or capable of preventing inflow of a resin material, includes a flat chamfered portion at a ridge portion between an end surface and an outer peripheral surface, and molds a sliding layer of a sealing member provided separately from the cap body, the flat chamfered portion forming a protrusion portion, the protrusion portion being an annular protruding shape inclined with respect to an axial direction of the sliding layer;
a second upper mold which has an outer diameter equal to the inner diameter of the skirt portion or capable of preventing inflow of a resin material, includes an end surface facing the lower mold, and molds a sealing layer of the sealing member onto and covering at least a portion of the protrusion portion of the sliding layer; and
wherein an outer diameter of the sealing member is either the same as an outer diameter of the sliding layer or larger than an outer diameter of the sliding layer.