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:
Aug. 29, 1978
Filed:
Feb. 15, 1977
Yoshinobu Murayama, Sakai, JP;
Kubota Ltd., Osaka, JP;
Abstract
In a power transmission system in which the torque delivered to an input shaft is transmitted to an output shaft via a planetary gear speed reduction mechanism, a stepless speed change system comprising a stepless speed change mechanism including a disk operatively connected to a gear mounted on the input shaft, a roller in contact with the disk and shiftable diametrically of the disk in a direction intersecting the axis of rotation of the disk, and a handle lever for shifting the roller, the roller being rotatable by the disk in a positive or reverse direction or stoppable when positioned at the center of rotation of the disk; and a worm and a worm wheel for transmitting the positive or reverse rotation of the roller to an internal gear of the planetary gear mechanism. When the output shaft is subjected to a load, part of the resulting counteracting torque is fed to the input shaft through the stepless speed change mechanism.