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. 31, 2000
Filed:
Sep. 10, 1999
Toshiya Fukumoto, Sakai, JP;
Masao Takagi, Hashimoto, JP;
Kubota Corporation, , JP;
Abstract
A propelling transmission for an agricultural tractor includes a main change speed mechanism, an auxiliary change speed mechanism, and a high/low change speed mechanism for providing two, high and low, speeds with a smaller transmission ratio than a transmission ratio between speed stages of the main change speed mechanism. The main change speed mechanism, auxiliary change speed mechanism and high/low change speed mechanism are arranged in series. Speeds in a low-speed range for an operational run among speeds provided by the main change speed mechanism and auxiliary change speed mechanism are combined with the two speeds provided by the high/low change speed mechanism. The propelling transmission prevents the high/low change speed mechanism from being operated to the low speed in a high-speed range for a road run among the speeds provided by the main change speed mechanism and auxiliary change speed mechanism, whereby the high-speed range is combined only with the high speed provided by the high/low change speed mechanism.