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:
Jun. 14, 2011
Filed:
Feb. 26, 2008
Toshiyuki Hasegawa, Amagasaki, JP;
Toshiyuki Hasegawa, Amagasaki, JP;
Kanzaki Kokyukoki Mfg. Co., Ltd., Hyogo, JP;
Abstract
A speed change system for a working vehicle comprises a main transmission, a sub transmission and a preliminary transmission. The main transmission receives a prime mover power outputted from a prime mover, and has plural main speed stages, one of which is selected to transmit the prime mover power. The sub transmission is disposed on the downstream of the main transmission, and has plural sub speed stages, one of which is selected to transmit a power from the main transmission. The preliminary transmission is disposed on the upstream of the main transmission, and has plural preliminary speed stages, one of which is selected to transmit the prime mover power to the main transmission. An operation for selecting one of the preliminary speed stages can be performed during traveling of the working vehicle.