Patent ID: 7270535
Filing Date: 2007-09-18
Classification: B29C,G11B,Y10S

Abstract:
1. A disc-molding mold characterized by comprising: (a) a first support member; (b) a first disc-shaped member attached to the first support member; (c) a second support member; and (d) a second disc-shaped member attached to the second support member, the second disc-shaped member facing the first disc-shaped member and forming a cavity space in cooperation with the first disc-shaped member when the disc-molding mold is clamped, wherein (e) a medium flow passage for temperature control is formed in each of the first and second disc-shaped members; (f) a stamper is removably attached to one of the first and second disc-shaped members; and (g) in the vicinity of outer peripheral edges of the first and second disc-shaped members, a heat insulating section is formed in the stamper-side disc-shaped member, on a predetermined location on the radially outer side of the medium flow passage, and thereon the cooling capacity of the medium flow passage of the stamper-side disc-shaped member is lower than the cooling capacity of the medium flow passage of the non-stamper-side disc-shaped member.