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:
Oct. 14, 1997
Filed:
Dec. 12, 1994
Masaki Nakano, Yokohama, JP;
Katsuya Kobayashi, Yokosuka, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A continuously variable transmission comprises a transmission unit and a casing. The transmission unit includes input and output disks on a main shaft and friction rollers arranged around axes of the disks and supported by trunnions. For controlling the speed ratio of the disks, the trunnions are urged by pistons and moved synchronously along own swinging axes perpendicular to the rotating axes of the friction rollers. Neighboring ends of the trunnions are mutually connected by linkage members and pivotally supported by the casing. The pistons can be fitted into the casing 1 from the outer side thereof, and can be detachably connected to the trunnions in the casing. The transmission is provided with a linkage support member, which can be inserted in the casing from an end opening thereof and fixed thereto perpendicular to an axis of the casing. When assembling the transmission, the main shaft is passed through a penetrating hole of the linkage support member, and the linkage members are pivotally supported by the linkage support member. Then, the disks are tightened in mutually closing directions, forming a sub-assembly of the transmission unit 5 without the pistons. Then, the subassembly is inserted in the casing from the end opening thereof and fixed to the casing perpendicularly thereto, while the pistons are fitted into the casing from the outer side thereof and connected to the trunnions of the subassembly in the casing respectively.