WELDER BELLOWS CAPABLE OF ABSORBING TORSION

摘要

PROBLEM TO BE SOLVED: To provide a welder bellows capable of taking out a torsion component along a rotational direction by relatively eccentrically deviating centers of an inside diameter and an outside form and varying respective elongation displacement along a periphery direction, and securing required torsion displacement quantity substantially by multiplying torsion quantity by the number of crests although a single crest is small torsion quantity while evenness of the elongation displacement is required for the respective crests and a whole periphery in a conventional welder bellows. SOLUTION: This welder bellows capable of absorbing the torsion is produced by a thin metallic plate, and is constructed by arranging and combining bellows cores wherein the centers of the inside diameter and the outside form of the bellows are eccentrically deviated so that the torsion along the axial direction can be absorbed.