Method of forming a frame joint structure
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorsYoshihiro Hayashi, Katsuhiro Iwase
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Abstract
A seat frame assembly of a motorcycle has upper and lower pipes made of an aluminum alloy and having a rectangular cross-sectional shape. The upper and lower pipes have front ends constructed as joints, and solid spacers made of an aluminum alloy and having a cross-sectional shape substantially identical to the rectangular cross-sectional shape of the pipes are fitted in the joints. Flat side walls of each of the joints are sandwiched between flat electrodes of a resistance welding machine, and pressed and heated so as to be crimped on the spacer while an electric current is flowing between the flat electrodes.
Claims3
A frame joint structure comprising:
- a joint comprising a frame pipe of metal having a hollow cross-sectional shape;
- and
- a solid spacer of metal having a cross-sectional shape which is substantially identical to the hollow cross-sectional shape of said frame pipe, and fitted in said frame pipe, said frame pipe being pressed and heated so as to be crimped on said solid spacer fitted therein.
Dependencies are inferred from the claim text.