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PH12018501187B1 - Tractor - Google Patents

Tractor

Info

Publication number
PH12018501187B1
PH12018501187B1 PH1/2018/501187A PH12018501187A PH12018501187B1 PH 12018501187 B1 PH12018501187 B1 PH 12018501187B1 PH 12018501187 A PH12018501187 A PH 12018501187A PH 12018501187 B1 PH12018501187 B1 PH 12018501187B1
Authority
PH
Philippines
Prior art keywords
load detection
pivotal
urging
load
detection member
Prior art date
Application number
PH1/2018/501187A
Other versions
PH12018501187A1 (en
Inventor
Kazuya KIYAMA
Katsumi Yanagihara
Original Assignee
Kubota Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kubota Kk filed Critical Kubota Kk
Publication of PH12018501187A1 publication Critical patent/PH12018501187A1/en
Publication of PH12018501187B1 publication Critical patent/PH12018501187B1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • A01B63/10—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means
    • A01B63/111—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements
    • A01B63/112—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors operated by hydraulic or pneumatic means regulating working depth of implements to control draught load, i.e. tractive force

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Lifting Devices For Agricultural Implements (AREA)
  • Agricultural Machines (AREA)

Abstract

A tractor includes a hydraulic lift driving unit 17 for liftably driving a cultivator and a mechanical coupling unit 18 for automatic lifting configured to convert a change amount of a towing load to a lift operational amount at time of a cultivation work and to transmit the lift operational amount to the lift driving unit 17. The mechanical coupling unit 18 includes a load detection member 36 pivotable back and forth according to a towing load, an urging mechanism 49 for pivotally urging the load detection member 36 in a decreasing direction of the towing load, a pivotal member 38 pivotally supported to the load detection member 36, a restriction mechanism 52 for restricting a pivotal movement of the pivotal member 38 relative to the load detection member 36, and a link mechanism 34 for operably coupling the pivotal member 38 with the lift driving unit 17. The restriction mechanism 52 includes a receiving tool 57 pivotable together with the load detection member 36 and an urging unit 58 for pivotally urging the pivotal member 38 for pressing the pivotal member 38 against the receiving tool 57.
PH1/2018/501187A 2017-03-16 2017-12-22 Tractor PH12018501187B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017051661A JP6742938B2 (en) 2017-03-16 2017-03-16 Tractor
PCT/JP2017/046137 WO2018168147A1 (en) 2017-03-16 2017-12-22 Tractor

Publications (2)

Publication Number Publication Date
PH12018501187A1 PH12018501187A1 (en) 2019-01-21
PH12018501187B1 true PH12018501187B1 (en) 2023-06-07

Family

ID=63523074

Family Applications (1)

Application Number Title Priority Date Filing Date
PH1/2018/501187A PH12018501187B1 (en) 2017-03-16 2017-12-22 Tractor

Country Status (3)

Country Link
JP (1) JP6742938B2 (en)
PH (1) PH12018501187B1 (en)
WO (1) WO2018168147A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3977838A4 (en) * 2019-05-29 2023-07-05 Kubota Corporation Tractor
JP7191006B2 (en) * 2019-12-27 2022-12-16 株式会社クボタ tractor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422906A (en) * 1965-08-23 1969-01-21 Massey Ferguson Inc Mixed draft and position control
JPS5543929Y2 (en) * 1977-06-20 1980-10-16
JPS6115Y2 (en) * 1979-04-28 1986-01-06
JPH066005B2 (en) * 1984-10-22 1994-01-26 株式会社クボタ Agricultural depth control device for agricultural tractors
JP3773856B2 (en) * 2002-01-29 2006-05-10 ヤンマー農機株式会社 Tractor draft control device

Also Published As

Publication number Publication date
JP2018153118A (en) 2018-10-04
JP6742938B2 (en) 2020-08-19
PH12018501187A1 (en) 2019-01-21
WO2018168147A1 (en) 2018-09-20

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