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. 16, 1990
Filed:
Oct. 06, 1989
Tokuyuki Takahashi, Aichi, JP;
Seitoku Kubo, Toyota, JP;
Hiroshi Itoh, Toyota, JP;
Masayuki Fukai, Toyota, JP;
Toyota Jidosha Kabushiski Kaisha, Toyota, JP;
Abstract
A vehicle transmission including a first, a second and a third planetary gear unit coaxially disposed between an input and an output member. The three units have respective first, second and third sun gears, respective first, second and third planetary gears, respective first, second and third carriers, and respective first, second and third ring gears. The first carrier, second ring gear, third sun gear and output members are connected to each other, while the second carrier and the third ring gear are connected to each other. The transmission has a first and a second coupling device for connecting the first ring and sun gears to the input member, respectively, a third and a fourth coupling device for connecting the first sun gear to the second sun gear and to the second carrier and third ring gear, respectively, a fifth coupling device for fixing the third carrier to a stationary member, a sixth coupling device, for fixing the second carrier and third ring gear to the stationary member, and a seventh coupling device for fixing the second sun gear to the stationary member.