MOLDING DIE FOR AN OPERATING KNOB

摘要

The present invention includes: core pin that forms fitting hollow part of an operating lever in the operating knob in addition to forming thin-diameter part including upper inclined surface and lower inclined surface on the upper part of the operating knob; upper die and lower die that form a periphery of the upper part and the lower part of operating knob; and intermediate slide core which is advanceable and restorable towards core pin between upper die and lower die, and has abutting part of upper inclined surface of core pin, as well as step part that is formed in the lower part of the abutting part and forms thin-walled part in the base of check claw.

主权项

1. The A molding die for an operating knob, which forms a check claw that protrudes inside a tube body and is outwardly swingable and restorable, the molding die comprising:
a core pin that forms a fitting hollow part of an operating lever in the operating knob in addition to forming a thin-diameter part including an upper inclined surface and a lower inclined surface on the upper part of the operating knob; an upper die and a lower die which form the periphery of the upper part and the lower part of the operating knob; and an intermediate slide core which is advanceable and restorable towards the core pin between the upper die and the lower die, and has an abutting part that abuts on the upper inclined surface of the core pin, as well as a step part that is formed in the lower part of the abutting part and forms a thin-walled part in the base of the check claw.