Abstract: A spherical exhaust pipe joint 1 includes an outer case 6, an inner case 8, a seal body 13 facing an inner peripheral surface 9 of the outer case 6 and an outer peripheral surface 11 of the inner case 8, a seal body 16 facing the inner peripheral surface 9 of the outer case 6 and the outer peripheral surface 11 of the inner case 8, and a wave spring 17 which is disposed between the outer case 6 and the inner case 8 to resiliently urge the seal bodies 13 and 16 in an axial direction toward one of the outer case 6 and the inner case 8.

Abstract: A damper restricts pivot pin rotation associated with operation of an operating section, wherein friction resistance that impedes the pivot pin rotation is changed in stepped fashion. When the pivot pin rotates in direction ? due to depression of an accelerator pedal, a slide cam shifts an edge section of an inclined cam surface away from a rotating cam while staying in contact with a gradual first inclined region of the rotating cam's inclined cam surface. Torque around the axis of the pivot pin is produced, the entire region of the slide cam's inclined cam surface comes into contact with a steep second inclined region of the rotating cam's inclined cam surface upon accelerator pedal depression to a prescribed position (the pivot pin has rotated by a prescribed angle ?1 in direction ?), and the torque around the axis of the pivot pin rapidly increases.

Abstract: A spherical exhaust pipe joint 1 includes an outer case 6, an inner case 8, a seal body 13 facing an inner peripheral surface 9 of the outer case 6 and an outer peripheral surface 11 of the inner case 8, a seal body 16 facing the inner peripheral surface 9 of the outer case 6 and the outer peripheral surface 11 of the inner case 8, and a wave spring 17 which is disposed between the outer case 6 and the inner case 8 to resiliently urge the seal bodies 13 and 16 in an axial direction toward one of the outer case 6 and the inner case 8.

Abstract: The present invention enables a user to intuitively grasp the occurrence of prescribed phenomena during operation. Provided is a damper that restricts pivot pin (4) rotation associated with operation of an operating section, wherein the friction resistance that impedes the rotation of the pivot pin (4) is changed in a stepped fashion. When the pivot pin (4) rotates in direction ? due to the depression of an accelerator pedal (operating section) (21), a slide cam (62) shifts an edge section (621A) of an inclined cam surface (621) in a direction A away from a rotating cam (61) while staying in contact with a gradual first inclined region (611A) of an inclined cam surface (611) of the rotating cam (61).

Abstract: A sliding member is provided which comprises a base body made of a firmly entangled and collapsed metal fine wire, with the voids formed between the metal fine wires constituting the metal mesh being filled compactly with a heat resistant material, the sliding surface of the base body being formed into a smooth surface with either a lubricant that fills a number of small holes formed in the heat resistant material as well as covering the surface thereof or the lubricant and the metal fine wires being exposed.