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:
Dec. 31, 1996
Filed:
Mar. 21, 1995
Li-Yu Chen, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A two-speed gearbox, having an input shaft which is connected to a spline shaft, when the gearbox is in direct drive, a front part of the spline shaft is in engagement with a shaft coupler which drives an output shaft to transmit a 1:1 ratio; when the gearbox is geared down, the spline shaft is moved such that its front part is separated from the shaft coupler and engaged with a sun gear of the planetary gear train within a housing which makes the internal splines of a frame of the planetary gear engage with external splines of the shaft coupler. Power is transmitted from the spline shaft, through the speed reduction of the sun and planetary gear train and to the planetary gear frame, and then is transmitted to the shaft coupler and sent out through the output shaft.