The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 1986
Filed:
Sep. 19, 1985
Hideo Okoshi, Fujisawa, JP;
Nippon Seiko Kabushiki Kaisha, Tokyo, JP;
Abstract
An infinitely variable traction roller transmission having a housing, an input shaft and an output shaft rotatably and coaxially supported on the housing, an input toric disc and an output toric disc fitted on the input and output shafts, respectively, and engaged with the shafts for rotation therewith, the opposed surfaces of the toric discs cooperating with each other to form a toroidal cavity, a plurality of traction rollers disposed in the toroidal cavity symmetrically with the axes of the input and output shafts, trunnion devices rotatably supporting the traction rollers and supported by the housing for pivotal movement about a pivot axis perpendicular to the axis of rotation of the traction rollers, and pressing means for urging the input and output toric discs and the traction rollers against each other to bring them into engagement with each other and cause a traction force to be produced, is provided with a supporting device for mounting the trunnion devices on the housing for slight movement in the direction of the pivot axis, a screw device provided at the end of the pivot axis of the trunnion devices, and a speed change link mechanism provided on the screw device to rectilinearly move the trunnion devices in the direction of the pivot axis through the screw device.