Title:
CRAWLER-TYPE WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/137833
Kind Code:
A1
Abstract:
A bulldozer (1) causes a left/right steering clutch (40L, 40R) to engage and a left/right steering brake (50L, 50R) to release when the amount of operation of a steering lever (35) is greater than a first prescribed amount (TH1) and less than a second prescribed amount (TH2), and drives a turning motor (80) such that the rotational speed of an inside output shaft (60IN) becomes lower than the rotational speed of an outside output shaft (60OUT) as the amount of operation of the steering lever (35) increases. When the amount of operation of the steering lever (35) is greater than or equal to the second prescribed amount (TH2), a controller (100) causes the engagement ratio of an inside steering clutch (40IN) to decrease and causes an inside steering brake (50IN) to perform braking.
Inventors:
YOSHIKAWA TAKESHI (JP)
TAKESHIMA HIROAKI (JP)
AKIYAMA NAOYA (JP)
OKADA TOSHIKAZU (JP)
NAKATA KAZUSHI (JP)
YATSUDA OSAMU (JP)
TAKESHIMA HIROAKI (JP)
AKIYAMA NAOYA (JP)
OKADA TOSHIKAZU (JP)
NAKATA KAZUSHI (JP)
YATSUDA OSAMU (JP)
Application Number:
PCT/JP2021/040792
Publication Date:
June 30, 2022
Filing Date:
November 05, 2021
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
International Classes:
E02F9/22; B62D11/08
Foreign References:
| JP2010144598A | 2010-07-01 | |||
| JPS5327929A | 1978-03-15 | |||
| JP2001260928A | 2001-09-26 | |||
| JPH10138945A | 1998-05-26 | |||
| JP2009078775A | 2009-04-16 |
Attorney, Agent or Firm:
SHINJYU GLOBAL IP (JP)
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