JPS6470251A - Parking brake device for working vehicle - Google Patents

Parking brake device for working vehicle

Info

Publication number
JPS6470251A
JPS6470251A JP22794487A JP22794487A JPS6470251A JP S6470251 A JPS6470251 A JP S6470251A JP 22794487 A JP22794487 A JP 22794487A JP 22794487 A JP22794487 A JP 22794487A JP S6470251 A JPS6470251 A JP S6470251A
Authority
JP
Japan
Prior art keywords
backing
parking
advancing
switchover valve
valve
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
JP22794487A
Other languages
Japanese (ja)
Other versions
JPH0574501B2 (en
Inventor
Yoshihiro Kawamura
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.)
Mitsubishi Agricultural Machinery Co Ltd
Original Assignee
Mitsubishi Agricultural Machinery Co Ltd
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 Mitsubishi Agricultural Machinery Co Ltd filed Critical Mitsubishi Agricultural Machinery Co Ltd
Priority to JP22794487A priority Critical patent/JPS6470251A/en
Publication of JPS6470251A publication Critical patent/JPS6470251A/en
Publication of JPH0574501B2 publication Critical patent/JPH0574501B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
  • Regulating Braking Force (AREA)

Abstract

PURPOSE:To prevent the backing of a vehicle at the time of parking, etc., on a slope by detecting the operating position of a speed change operating means and delaying the timing of the off-operation of an advancing/backing switchover valve or a parking switchover valve for a defined time later than the on-operation of each switchover valve which takes the place of the off-operation. CONSTITUTION:By providing advancing and backing hydraulic clutches FA, RA and a parking hydraulic brake 83, an advancing/backing switchover valve 71 is operated through the operation to advancing/backing side of a speed change operating means to engage/disengage the advancing and backing hydraulic clutches FA, RA, or a parking switchover valve 75 is operated through the operation to the neutral thereof to operate the parking hydraulic valve 83. And, by detecting the operating position of the speed change operating means through switches 56, 57, the operating solenoids 72, 73 of the advancing/backing switchover valve 71 and the parking switchover valve 75 are controlled by an operating timing controlling means 78, to delay the timing of the off-operation of each switchover valve for a defined time later than the on- operation of each valve which takes the place of the off-operation, thereby, effectively preventing the backing of a vehicle at the time of parking, starting, etc., on a slope.
JP22794487A 1987-09-11 1987-09-11 Parking brake device for working vehicle Granted JPS6470251A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22794487A JPS6470251A (en) 1987-09-11 1987-09-11 Parking brake device for working vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22794487A JPS6470251A (en) 1987-09-11 1987-09-11 Parking brake device for working vehicle

Publications (2)

Publication Number Publication Date
JPS6470251A true JPS6470251A (en) 1989-03-15
JPH0574501B2 JPH0574501B2 (en) 1993-10-18

Family

ID=16868725

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22794487A Granted JPS6470251A (en) 1987-09-11 1987-09-11 Parking brake device for working vehicle

Country Status (1)

Country Link
JP (1) JPS6470251A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6056373A (en) * 1996-06-28 2000-05-02 Robert Bosch Gmbh System for controlling the braking action in a motor vehicle

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143747A (en) * 1983-02-05 1984-08-17 Mazda Motor Corp Electric parking brake device
JPS62168763A (en) * 1986-01-21 1987-07-25 Mitsubishi Agricult Mach Co Ltd Parking brake device in working vehicle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59143747A (en) * 1983-02-05 1984-08-17 Mazda Motor Corp Electric parking brake device
JPS62168763A (en) * 1986-01-21 1987-07-25 Mitsubishi Agricult Mach Co Ltd Parking brake device in working vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6056373A (en) * 1996-06-28 2000-05-02 Robert Bosch Gmbh System for controlling the braking action in a motor vehicle

Also Published As

Publication number Publication date
JPH0574501B2 (en) 1993-10-18

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