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. 02, 1988
Filed:
Sep. 10, 1986
Yoshinobu Murayama, Osaka, JP;
Kubota, Ltd., Osaka, JP;
Abstract
A planetary gear type forward and backward drive switching apparatus, comprising a sun gear mounted on an input transmission shaft, a carrier mounting planetary gears meshing the sun gear and rotatable about the transmission shaft, a ring gear meshing the planetary gears and rotatable about the transmission shaft, and a friction brake mechanism for selectively braking rotations of the carrier and the ring gear, including a ring-formed main brake body having braking faces for acting on side faces of the carrier and the ring gear, the main brake body being shiftable axially of the transmission shafts for selectively braking the carrier and the ring gear, a clutch mechanism for selectively transmitting rotational outputs of the carrier and the ring gear to an output transmission shaft, and a control lever for controlling the forward and backward drive switching apparatus. According to this planetary gear type forward and backward drive switching apparatus, the control lever provides a forward drive by braking the ring gear and at the same time by operatively connecting the carrier to the output transmission shaft and provides a backward drive by braking the carrier and at the same time by operatively connecting the ring gear to the output transmission shaft.