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    • 8. 发明专利
    • DE58902054D1
    • 1992-09-17
    • DE58902054
    • 1989-05-17
    • BOSCH GMBH ROBERT
    • SCHEIDEL WOLFGANGSTENGER JUERGENVAN WIJHE ALBERT
    • B60H1/00F16K1/16
    • PCT No. PCT/DE89/00311 Sec. 371 Date Nov. 16, 1990 Sec. 102(e) Date Nov. 16, 1990 PCT Filed May 17, 1989 PCT Pub. No. WO89/11980 PCT Pub. Date Dec. 14, 1989.A swivelable conduit is suggested which serves to deflect the air to be guided to the passenger space of a motor vehicle. The conduit comprises two pivot mountings which are flush with one another and are arranged at a distance from one another at a stationary structural element, preferably at the wall of an air duct; the pivot mountings comprise a bearing bush connected with one of the two elements and a bearing pin connected with the other element and in which the two bearing elements are provided with shoulder surfaces and counter-shoulder surfaces, respectively, which face one another and which define a relative movement of the two bearing elements which is directed in the direction of the swivel axis, and the bore hole wall surface of every bearing bush guides the two structural elements radially relative to the swivel axis in cooperation with an outer surface area of the bearing pin assigned to it. In order to eliminate in a simple, economical manner the axial play, which is very difficult to eliminate in these pivot mountings, as well as the radial play, which can only be prevented at a high cost, at least one of the surfaces of the bearing elements cooperating with one another comprises at least one elastically deformable portion which, in the relaxed state, projects over the contour which it occupies in the installed state, and accordingly in the tensioned state.