WORK VEHICLE - YANMAR CO LTD

Title:

WORK VEHICLE

Document Type and Number:

WIPO Patent Application WO/2017/047689

Kind Code:

A1

Abstract:

Provided is a work vehicle that comprises: an engine (5) that is mounted in a traveling machine body (2); a straight-ahead transmission path having a first continuously variable transmission device (17); a turning transmission path having a second continuously variable transmission device (13); a left-right traveling unit (3) that receives power from the engine (5) and advances forward or backward; a brake mechanism (751) that causes the traveling unit (3) to brake; a brake operation tool (35) that causes the brake mechanism (751) to operate; and controllers (813, 814) that continuously control output of the straight-ahead transmission path and output of the turning transmission path. The work vehicle drives the left-right traveling unit (3) by combining the output of the straight-ahead transmission path and the output of the turning transmission path. If an operation amount applied to the brake operation tool (35) exceeds a first prescribed amount, the controllers (813, 814) place a swash plate of the second continuously variable transmission device (13) into a neutral state at the same time as cutting off power output from the first continuously variable transmission device (17).

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Inventors:

FUJIKI KATSUMI (JP)
IWAMURA KEISUKE (JP)

Application Number:

PCT/JP2016/077242

Publication Date:

March 23, 2017

Filing Date:

September 15, 2016

Export Citation:

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Assignee:

YANMAR CO LTD (JP)

International Classes:

F16H47/04; B60T7/12; F16H59/40; F16H59/54; F16H61/02; B62D11/18

Foreign References:

JP2001255951A	2001-09-21
JP2011094703A	2011-05-12

Other References: