Patent · US Expired

Method of manufacturing molding members

US4940557A · kind A · utility

27Cited by
7References
7Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 27, 1988
Grant dateJul 10, 1990
Priority date
Expiry dateDec 27, 2008

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S264/46
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A method of manufacturing molding members, for instance for automobiles, wherein an elongate shaped body is prepared from synthetic resin material either by an extrusion process, or by an injection process and is subjected to a controlled heating so as to soften the interior resin material while preserving the hardness of the outer surface portion. A cutter blade is advanced into the shaped body while it is subjected to the controlled heating, whereby the outer surface portion is urged and deformed inwardly to form a smooth end surface in continuous connection with remaining outer surface of the molding member.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.