Molding mold, molding method and tape cartridge

A molding mold for molding a flange configuration provided with a reel hub portion having a flange and a hub arranged at a substantial center of said flange, and an insert portion disposed at a substantial center of said reel hub portion at an opposite side of said hub, comprising:

• a stationary side mold;
• a movable side mold;
• and
• a cavity formed between said stationary side mold and said movable side mold;
• said cavity, including:
• an insert attaching portion for attaching said insert portion by an insert molding;
• a flange forming portion for forming said flange;
• and
• a hub forming portion for forming said hub;
• wherein in a molding surface at a side of said hub forming portion of said flange forming portion, a dimension of a circular area over from a root end of said hub forming portion to a substantially intermediate portion between said root end and a circumferential end of said flange forming portion, is corrected, so that height from a reference position at a side of said insert portion is set to be larger than the dimension before correction of said dimension.

A molding mold for molding a flange configuration provided with a reel hub portion having a flange and a hub arranged at a substantial center of said flange, and an insert portion disposed at a substantial center of said reel hub portion at an opposite side of said hub, comprising:

• a stationary side mold;
• a movable side mold;
• and
• a cavity formed between said stationary side mold and said movable side mold;
• said cavity, including:
• an insert attaching portion for attaching said insert portion by an insert molding;
• a flange forming portion for forming said flange;
• and
• a hub forming portion for forming said hub;
• wherein in a molding surface at a side of said hub forming portion of said flange forming portion, in a circular area over from a root end of said hub forming portion to a substantially intermediate portion between said root end and a circumferential end of said flange forming portion, height from a reference position at a side of said insert portion is gradually reduced from the root end to the circumferential end so that a degree of its reduction is large as compared with that of reduction from said substantially intermediate portion to said circumferential end.