Patent ID: 8468910

Claim:
A filler member to be installed in a crankshaft including a crank web including: an arm member, extending in a diametrical direction of a crank journal, including a connecting rod connecting part to be connected to a connection rod; a weight member, disposed opposite to the connecting rod connecting part across a rotating center of the crank journal, extending on both sides of the arm member in a radial direction of the crank journal, the filler member comprising: a fitting member including a through hole and two bodies formed on both sides of the through hole; and a connecting member mounted on the bodies, wherein the crank journal inserted into the through hole and the fitting member is fixed to one side face of the crank web to dispose the bodies on both sides of the arm member in a rotational direction of the arm member, wherein the connecting member is mounted on the bodies to stride the arm member on another side face of the crank web, wherein the crank web is sandwiched between the fitting member and the connecting member, wherein the bodies include locking members protruding therefrom, wherein a line connecting center positions of engaging parts passes across a rotation center of the crank journal; and wherein the connecting member includes the engaging parts engaged with outer circumferences of the locking members.