TRANSMISSION OF WORK VEHICLE

Title:

TRANSMISSION OF WORK VEHICLE

Document Type and Number:

WIPO Patent Application WO/2005/087530

Kind Code:

A1

Abstract:

A transmission of a work vehicle enabling the smooth turning of the vehicle and manufacturable at low cost. The transmission (101) of the work vehicle (1) having an engine (31) and a pair of traveling devices (4L) and (4R) comprises a pair of differential mechanisms (104L) and (104R) having a sun gear, a carrier with a plurality of planetary gears, and a ring gear, an HST (103) changing a drive force from the engine by speed reduction and inputting the drive force into the sun gear of the pair of differential mechanisms, and a pair of motors (105L) and (105R) inputting the drive force into the ring gear of the pair of differential mechanisms. The pair of motors rotatingly drive the ring gear in a direction for reducing the rotating speed of the carrier.

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Inventors:

SHINKO TADAYUKI
NOCHI SUSUMU

Application Number:

PCT/JP2005/003630

Publication Date:

September 22, 2005

Filing Date:

March 03, 2005

Export Citation:

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Assignee:

YANMAR CO LTD (JP)
SHINKO TADAYUKI
NOCHI SUSUMU

International Classes:

B60K7/00; B60K17/06; B60K17/04; B60K17/10; B60K17/16; B62D11/12; B62D11/14; F16H1/16; F16H3/72; F16H48/10; F16H48/20; F16H48/34; F16H48/36; F16H48/38; (IPC1-7): B60K17/04

Foreign References:

JP2002274417A	2002-09-25
JPH0550867A	1993-03-02
JPH09207810A	1997-08-12
JP2003080963A	2003-03-19

Other References: