Method of fabricating a vehicle body frame for a motorcycle
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsShinsuke Mochizuki, Masahiko Nakagawa, Eitarou Koya
Life of this patent
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Abstract
To adopt die casts product as parts of a vehicle body frame. A vehicle body frame is provide with an alumite treating, showing that brightness and appearance of pivot plates which are die cast products differ from those of non-die cast products, head pipes, longitudinal pipes and cross pipe. By carrying out a local coating treatment on the pivot plates, the pivot plates are provided with a color the same as that of the pipe, the longitudinal pipes and the cross pipe. By making die cast products portion of constituent parts, the fabrication cost of the vehicle body frame can be reduced.
Claims10
A method of fabricating a vehicle body frame for a motorcycle comprising the following steps:
- integrating aluminum series die cast products and aluminum series non-die cast products fabricated by a method other than die casting to form an integrated article having die cast portions and non-die cast portions;
- subjecting the integrated article to an alumite treating coating;
- and
- additionally coating only the die cast portions of the integrated article with a coating having a color generally the same as the alumite coating.
A method of fabricating a vehicle body frame for a motorcycle comprising the following steps:
- forming aluminum series die cast products by high pressure die casting;
- forming aluminum series non-die cast products by a method other than high pressure die casting;
- integrating said aluminum series die cast products and said aluminum series non-die cast products to form an integrated article having die cast portions and non-die cast portions;
- subjecting the integrated article to an alumite treating coating;
- and
- additionally coating only the die cast portions of the integrated article with a coating having a color generally the same as the alumite coating.
Dependencies are inferred from the claim text.