JPH01156147A - Hydraulic clutch for running service car - Google Patents

Hydraulic clutch for running service car

Info

Publication number
JPH01156147A
JPH01156147A JP62314864A JP31486487A JPH01156147A JP H01156147 A JPH01156147 A JP H01156147A JP 62314864 A JP62314864 A JP 62314864A JP 31486487 A JP31486487 A JP 31486487A JP H01156147 A JPH01156147 A JP H01156147A
Authority
JP
Japan
Prior art keywords
hydraulic
clutch
clutches
input shaft
hydraulic clutch
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP62314864A
Other languages
Japanese (ja)
Other versions
JPH0659800B2 (en
Inventor
Yoshiyuki Katayama
Takeshi Ura
Akio Inamori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
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 Corp filed Critical Kubota Corp
Priority to JP62314864A priority Critical patent/JPH0659800B2/en
Priority to US07/280,690 priority patent/US4924983A/en
Priority to ES8803743A priority patent/ES2012890A6/en
Priority to FR8816258A priority patent/FR2625953B1/en
Priority to GB8828776A priority patent/GB2213550B/en
Publication of JPH01156147A publication Critical patent/JPH01156147A/en
Publication of JPH0659800B2 publication Critical patent/JPH0659800B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To reduce shocks in changing over a clutch by controllably maintain the internal pressure of each hydraulic clutch at predetermined pressure when an absolute value of acceleration of travelling system exceeds a predetermined value in changing over formed and backward hydraulic clutches.
CONSTITUTION: In a clutch case connected to an input shaft of a travelling system are provided a first hydraulic clutch C1 for transmitting power from the input shaft to an output gear and a second hydraulic clutch C2 for transmitting power from the input shaft 4 directly to an input gear. In oil paths 23, 24 for sending pressurized oil from a hydraulic pump 21 through a forward and backward change-over valve 22 to the respective hydraulic clutches C1, C2 is provided a electromagnetic proportional pressure reducing valves V1, V2. These valves V1, V2 controllably maintain the pressure of oil supplied to the respective clutches C1, C2 by a controller 25 when an absolute value of acceleration detected by a sensor S in the travelling system exceeds a predetermined value in changing over the respective hydraulic clutches C1, C2.
COPYRIGHT: (C)1989,JPO&Japio
JP62314864A 1987-12-10 1987-12-11 Hydraulic clutch device for traveling of work vehicle Expired - Lifetime JPH0659800B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP62314864A JPH0659800B2 (en) 1987-12-11 1987-12-11 Hydraulic clutch device for traveling of work vehicle
US07/280,690 US4924983A (en) 1987-12-10 1988-12-06 Propelling clutch apparatus for a working vehicle
ES8803743A ES2012890A6 (en) 1987-12-10 1988-12-09 Propelling clutch apparatus for a working vehicle
FR8816258A FR2625953B1 (en) 1987-12-10 1988-12-09 PROPULSION CLUTCH APPARATUS
GB8828776A GB2213550B (en) 1987-12-10 1988-12-09 Propelling clutch apparatus for a working vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62314864A JPH0659800B2 (en) 1987-12-11 1987-12-11 Hydraulic clutch device for traveling of work vehicle

Publications (2)

Publication Number Publication Date
JPH01156147A true JPH01156147A (en) 1989-06-19
JPH0659800B2 JPH0659800B2 (en) 1994-08-10

Family

ID=18058539

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62314864A Expired - Lifetime JPH0659800B2 (en) 1987-12-10 1987-12-11 Hydraulic clutch device for traveling of work vehicle

Country Status (1)

Country Link
JP (1) JPH0659800B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05312223A (en) * 1992-05-11 1993-11-22 Kubota Corp Hydraulic main clutch device
US5941358A (en) * 1997-12-16 1999-08-24 Caterpillar Inc. End-of-fill detector arrangement for a fluid actuated clutch
JP2014122650A (en) * 2012-12-20 2014-07-03 Iseki & Co Ltd Traveling transmission control device of working vehicle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6239335A (en) * 1985-08-14 1987-02-20 Toyoda Autom Loom Works Ltd Clutch control method in switchback running for vehicle with automatic transmission

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6239335A (en) * 1985-08-14 1987-02-20 Toyoda Autom Loom Works Ltd Clutch control method in switchback running for vehicle with automatic transmission

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05312223A (en) * 1992-05-11 1993-11-22 Kubota Corp Hydraulic main clutch device
US5941358A (en) * 1997-12-16 1999-08-24 Caterpillar Inc. End-of-fill detector arrangement for a fluid actuated clutch
JP2014122650A (en) * 2012-12-20 2014-07-03 Iseki & Co Ltd Traveling transmission control device of working vehicle

Also Published As

Publication number Publication date
JPH0659800B2 (en) 1994-08-10

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