Patent ID: 9370890
Filing Date: 2016-06-21
CPC Classification: B29C,B29L

Claim Text:
1. A molding die for making an operating knob, said operating knob including (i) a tubular body having an upper part and a lower part, and (ii) a check claw that protrudes inwardly of the tubular body, is outwardly swingable and is restorable, the molding die comprising: a core pin configured to form a fitting hollow part in the operating knob and having a thin-diameter part including an upper inclined surface and a lower inclined surface configured to correspond to the upper part of the operating knob; an upper die and a lower die configured to form a periphery of the upper part and the lower part of the operating knob; and at least one intermediate slide core which is advanceable towards and retractable away from the core pin between the upper die and the lower die, and has wherein the abutting part and the step part are formed in a single piece advanceable towards and retractable away from the core pin between the upper die and the lower die.