초록 ▼

A method for manufacturing an injection molded steering wheel pad having a cover and a pocket formed between a first projection and a second hook-spaced projection, that together hold an arm of an airbag device. The pad includes a pad body and at least one pair of holding portions extending from the

A method for manufacturing an injection molded steering wheel pad having a cover and a pocket formed between a first projection and a second hook-spaced projection, that together hold an arm of an airbag device. The pad includes a pad body and at least one pair of holding portions extending from the pad body. The holding portions have an L-shaped first recess and the steering wheel pad has a second recess located between the pad body and the holding portion. A mold includes a pair of first and second molds. The method comprises injecting a molten resin into a mold cavity defined upon closing contact between the first and second molds, curing the molten resin to form the steering wheel pad, separating the first and second molds and holding the steering wheel pad in either one of the first and second molds, extending the first and second core members from the main body of one of the first and second molds together with the steering wheel pad, sliding the first core member in a direction perpendicular to the extending direction and resiliently deforming the holding portion to remove the first core member from the first recess while holding the pad with the second core member, and removing the pad from the second core member.

대표청구항 ▼

[ What is claimed is:] [1.] A method for manufacturing a steering wheel pad by injection molding using a mold, the pad including a pad body, a holding portion extending from the pad body, the holding portion having an L-shaped first recess and the steering wheel pad having a second recess located be

[ What is claimed is:] [1.] A method for manufacturing a steering wheel pad by injection molding using a mold, the pad including a pad body, a holding portion extending from the pad body, the holding portion having an L-shaped first recess and the steering wheel pad having a second recess located between the pad body and the holding portion, the first recess being curved away from the second recess, the mold including a pair of first and second molds, one of the first and second molds having a pair of first core members provided with a first portion for forming the first recess, a pair of second core members for forming an inner portion of the pad, and a main body, the method comprising the steps of:injecting a molten resin into a mold cavity defined upon closing contact between the first and second molds;curing the molten resin to form the steering wheel pad;separating the first and second molds and holding the steering wheel pad in said one of the first and second molds;extending the first and second core members from the main body of said one of the first and second molds together with the steering wheel pad along an extending direction to separate part of the holding portion, which is located at the opposite side of the second recess and which is in contact with a mold surface of the main body, from the mold surface;sliding the first core member in a direction perpendicular to the extending direction and resiliently deforming the holding portion to remove the first portion from the first recess while holding the pad with the second core member; andremoving the pad from the second core member.