Importance

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Abstract

A method of manufacturing a joint structure, includes: setting a shaft in a pre-fixed state in which the shaft is not fixed to a fixed part while the shaft is inserted into a through hole formed through a movable part, and a distal end of the shaft is inserted into a through hole formed through the fixed part; inserting a punch into an opening of a counterbore while swinging the punch; pressing, by lowering the punch while swinging the punch in the counterbore, sides of the punch alternately against sides of an inner curved surface of the counterbore according to the swinging of the punch; and fixing the shaft to the fixed part by enlarging an inner diameter of the counterbore to make the distal end of the shaft be closely in contact with the inner curved surface of the through hole of the fixed part.

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First Claim