Title:
作業車
Document Type and Number:
Japanese Patent JP6830520
Kind Code:
B2
Abstract:
To reduce a work ground from being ruined due to digging of a ground surface by rear wheels of a turning inside during turning.SOLUTION: A work vehicle 1 is equipped with a travelling machine body 2 mounted with an engine 5, left and right travelling parts 4 for supporting the travelling machine body 2, a steering operation tool 14 that performs operation of changing a travelling direction of the travelling machine body 2, and left and right main connecting/disconnecting members 48 that connect and disconnect power transmission to the left and right travelling parts 4. The work vehicle actuates the main connecting/disconnecting members 48 so that the member connects and disconnects the power transmission to the travelling parts 4 of a turning inside according to steering operation by the steering operation tool 14. The work vehicle is further equipped with left and right sub-connecting/disconnecting members 111 and deceleration mechanisms 131 separately from the left and right main connecting/disconnecting members 48, where power toward the travelling parts 4 of the turning inside passes through the deceleration mechanisms 131 to drive the travelling part 4 of the turning inside at speed lower than speed of the traveling part 4 of a turning outside.SELECTED DRAWING: Figure 9
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Inventors:
Tomohiro Takeyama
Application Number:
JP2019202343A
Publication Date:
February 17, 2021
Filing Date:
November 07, 2019
Export Citation:
Assignee:
Yanmar Power Technology Co., Ltd.
International Classes:
B62D11/08; A01C11/02; B60K17/16
Domestic Patent References:
| JP2001278103A | ||||
| JP11187720A | ||||
| JP2002349648A |
Attorney, Agent or Firm:
Ryuichi Watanabe