Method of applying electrically conductive heating element on surface of rim of steering wheel

摘要

A method relates to applying an electrically conductive heating element to a surface of a rim of a steering wheel. The rim of the steering wheel is structured such that a plurality of heating elements formed of a conductive paste is applied to outer circumferential surfaces of a rim. A first connection element for electrically connecting the heating elements is applied along circumferential edges of the rim contacting a separation space. A second connection element formed of a conductive paste and adapted to electrically connect the first connection elements is applied in the separation space.

主权项

1. A method of applying a heating element to a surface of a rim of a steering wheel, the method comprising:
attaching the heating element having a predetermined pattern to a surface of a first pad member which is soft, the heating element comprising an electrically conductive paste; pressing the first pad member on the surface of the rim of the steering wheel and attaching the heating element to the surface of the rim, wherein the surface of the rim of the steering wheel has a processing groove for receiving a seamed portion of a leather and the heating element is not applied to an edge portion of the processing groove; mounting at least two first connection elements arranged adjacent to each other along circumferential edges of a first end portion and a second end portion of the surface of the rim, wherein the first and the second end portions of the surface of the rim are spaced apart from each other via the processing groove, the first connection elements being operable to electrically connect the heating element; and applying a second connection element to a wall surface and a bottom surface of the processing groove to electrically connect the two first connection elements, the second connection element comprising a conductive paste.