US 4,865,796 AGranted

Method of producing molding members

AssigneeHashimoto Forming Industry Co., Ltd.

InventorsTatsuya Tamura, Nobuo Igarashi, Sadao Konno, Hiroyuki Nakajima

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Abstract

A novel method of producing molding members for automobiles, formed at least partly of a synthetic resin material is disclosed. According to the method of the invention, synthetic resin material is extrusion molded into a continuous body with a substantially constant cross-section throughout the entire length thereof. A controlled amount of the material is removed from the predetermined location of the continuous body, synchronously with the extrusion molding of the material, such that the cross-section of the continuous body varies in the longitudinal direction of the body. The continuous body subjected to the controlled removal of the material is then cut into the predetermined length of the molding member.

Claims7

Dependent claims

A method of producing molding members for automobiles, formed at least partly of a synthetic resin material, which method comprises the steps of:

(a) extrusion molding the synthetic resin material into an elongate continuous body with a substantially constant cross-section throughout the entire length thereof;
(b) detecting an extruded length of the continuous body;
(c) removing from a predetermined location of said continuous body a controlled amount of the synthetic resin material, synchronously with the extrusion molding of the synthetic resin material, such that the cross-section of said continuous body varies in the longitudinal direction thereof, said controlled amount being controlled in accordance with a detected length of the continuous body detected in step (b);
and
(d) subsequently cutting said continuous body into a predetermined length of the molding member.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/180,893Filed 13 Apr 1988
Priority: JP 63-1928929 Jan 1988
Granted: 12 Sep 1989
Term ends: Not estimatedThe source records don’t support an estimate.

Classification36 codes

B60J 1/2002
Accessories, e.g. wind deflectors, blinds: wind deflectors specially adapted for preventing soiling, e.g. for side windows
B26D 1/02
Involving a cutting member which does not travel with the work: having a stationary cutting member
B26D 1/20
With a circular cutting member, e.g. disc cutter: coacting with a fixed member
B26D 3/28
Cutting work characterised by the nature of the cut made; Apparatus therefor: splitting layers from work; Mutually separating layers by cutting