Patent ID: 7140272
Filing Date: 2006-11-28
Classification: B23P,F16C,Y10T

Abstract:
1. An assembly type crankshaft, comprising: a crank pin of a crankshaft; and at least one crank web of the crankshaft, the crank pin and the at least one crank web being fabricated as separate members, to be assembled together by pressing said crank pin into a pin hole provided in said crank web, wherein said crank pin is formed as a hollow member, and after said crank pin is pressed into the pin hole provided in said crank web with an press in allowance, a plug member having a predetermined length, shorter than a thickness of said crank web, is pressed into an end portion of a hollow hole in said crank pin, and said crank web is bent and deformed in an up-and-down direction thereof, wherein said crank web is deformed in a V shape when the plug member is pressed into the end portion of the hollow hole in said crank pin.