RESIN VEHICLE PART MANUFACTURING METHOD AND RESIN VEHICLE PART

摘要

A method for manufacturing a resin vehicle part provided with a panel body having a decorative surface on the front surface and a stepped reinforcing rib, which stands on the back surface of the panel body and the thickness of the base end of which is formed to be thinner than the thickness of the leading end. On the injection molding die thereof, a sliding piece for forming the stepped reinforcing rib is provided so as to be movable. During shrinkage movement of the stepped reinforcing rib in the height direction after molten resin has been filled in the injection molding die, the sliding piece is pressed by the leading end of the stepped reinforcing rib and moves towards the panel body.

主权项

1. A method for manufacturing a resin vehicle part provided with a panel body having a front surface including a design surface and a stepped reinforcing rib formed standing on a back surface of the panel body, the stepped reinforcing rib having a base end portion with a thickness thinner than a leading end portion,
wherein an injection molding die for the resin vehicle part includes a movable slide piece to form the reinforcing rib, after molten resin is filled in the injection molding die, the slide piece is pushed by the leading end portion of the stepped reinforcing rib and moved in a direction to come close to the panel body when the stepped reinforcing rib shrinks in a height direction.