Patent ID: 6098286
Filing Date: 2000-08-08
Classification: B29C,B29L,B60R,B62D,Y10S,Y10T

Abstract:
A method for the production of a steering wheel comprising a skeleton structure including a rim, spokes, and a base part, said steering wheel further comprising a central region for an airbag covering and a seamless casing of a plastic molded part having a continuous uninterrupted outer surface and a base body, the casing surrounding said rim, said spokes, and said central region and having tear-open lines, said method comprising the steps of:fastening a core of a material having a melting point lower than that of said plastic molded part to said base part of said skeleton structure;placing said skeleton structure and said core in a mould;forming said plastic molded part in one piece by casting or injection molding;setting of said plastic molded part;melting said core by an increase in temperature to a temperature higher than said melting point of said core but lower than said melting point of said plastic molded part; andremoving said core material in liquid form from said plastic molded part.