Abstract: A flexible joint for an exhaust pipe includes: a bellows tube having a bellows portion; and an outer part disposed along an outer periphery of the bellows portion. One end portion of the bellows tube and one end portion of the outer part are connected together. An elastic ring is attached to the other end portion of the outer part. A stopper is provided on the other end portion of the bellows tube. When deformation of the bellows portion in at least one of compression direction and expansion direction exceeds a predetermined amount, the elastic ring engages with the stopper to regulate the deformation of the bellows portion.

Abstract: A collapsible steering column includes a bellows tube with a corrugated portion in which the radius varies regularly along the length of the tube. A connective portion is located at both ends of the bellows tube, and transfer portions are located between each of the connective portions and the corrugated portion. By inserting a reinforcement into the end portion of the bellows tube, the strength and rigidity of the connective portion increases. Press forming, stamp forming, rivet forming, and/or adhesive methods are applied to connect the end portion of the bellows tube and the reinforcement.