Back to results
US 4,265,388 AGranted
Process for manufacture of assembled cam shaft
AssigneeToyota Jidosha Kogyo Kabushiki Kaisha
InventorsAkio Takahashi, Chiaki Tsumuki, Hitoshi Nakamura, Juro Ozaki
Life of this patent
Estimating the term…
Abstract
Process for manufacturing cam shaft characterized in that axial grooves are cut on a cam shaft, while projections with a profile matching the axial grooves and slightly larger than the axial grooves are provided on the fitting surface of pieces to be assembled to the cam shaft, whereby said projections of the pieces are fitted into the grooves of said cam shaft.
Claims9
A method of making a cam-shaft assembly comprising
- providing a shaft having an axially extending groove formed in its outer surface,
- providing a cam having an opening of a diameter slightly greater than the diameter of the shaft and having an inwardly extending projection of a profile generally similar to the profile of the groove in the shaft, said projection forming an interference fit with the groove when aligned therewith and assembled on the shaft,
- aligning said projection with said groove and forcing said cam axially onto said shaft to a predetermined position on the shaft,
- said cam gripping said shaft in said position by virtue of the interference of the projection in the groove to restrain the cam against movement both axial and circumferentially relative to the shaft and said projection spacing portions of the surface of the opening in the cam from the surface of the shaft at said position to provide a clearance space, and reducing said clearance space thereby further securing the cam to the shaft at said position.
1 more element
Dependencies are inferred from the claim text.