STRUCTURE AND METHOD OF FIXING LINK AND PIN OF CRAWLER BELT FOR RUNNING

PROBLEM TO BE SOLVED: To provide a link and pin fixing structure for a crawler belt capable of easily and strongly connecting a link and a pin and capable of sufficiently securing the holding force in the axial direction of the pin, and to provide a link and pin fixing method for a crawler belt capable of securely and quickly fixing the pin when assembling the pin and capable of securely and quickly assembling the link and the pin. SOLUTION: In this crawler belt 1 for running, a pair of links 6 and 7 in right and left are connected to each other through a pin in the endless condition. A fixed end surface of the pin or the link among the fixed end surfaces of the links 6 and 7, into which the pin 5 is pressed, is continuously pushed for deformation from the fixed end surface in the axial direction along the peripheral part of the inside or outside of an opening of a pin press-in hole 29, and diameter of an end of the pin 5 or diameter of a part of the opening peripheral part of the link is enlarged or shrunken so that the enlarged diameter part of the shrunken diameter part is locked with a counterpart lock space for fixation. Surface hardness of the enlarged diameter part or the shrunken diameter part is set at a value lower than the surface hardness of other parts. COPYRIGHT: (C)2003,JPO