JPS563307A - Safety device for working vehicle - Google Patents

Safety device for working vehicle

Info

Publication number
JPS563307A
JPS563307A JP7620679A JP7620679A JPS563307A JP S563307 A JPS563307 A JP S563307A JP 7620679 A JP7620679 A JP 7620679A JP 7620679 A JP7620679 A JP 7620679A JP S563307 A JPS563307 A JP S563307A
Authority
JP
Japan
Prior art keywords
sensitive sensor
working fluid
filter
temperature
pressure
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
JP7620679A
Other languages
Japanese (ja)
Other versions
JPS602526B2 (en
Inventor
Masaharu Noguchi
Yoshiyuki Asanuma
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 JP54076206A priority Critical patent/JPS602526B2/en
Publication of JPS563307A publication Critical patent/JPS563307A/en
Publication of JPS602526B2 publication Critical patent/JPS602526B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Fluid-Pressure Circuits (AREA)
  • Operation Control Of Excavators (AREA)
  • Component Parts Of Construction Machinery (AREA)

Abstract

PURPOSE: To enable an easy recognition of a replacement time and of a filter clogging, by a method wherein the need for replacement of hydraulic operating fluid and the filter clogging are notified by means of a pressure-sensitive sensor and a temperature-sensitive sensor located at a suction path of a working fluid feed pump.
CONSTITUTION: A pressure-sensitive sensor 20, detecting a change in a pressure, and a temperature-sensitive sensor 21, detecting a temperature of a working fluid, are located on an upstream side of a filter 8 positioned at a suction path of a working fluid feed pump 10. A means L1, which informs of the necessity of replacement of the working fluid according to information from the pressure-sensitive sensor 20, is mounted, and a means L2, which notifies of the filter (8) clogging according to information from the temperature-sensitive sensor 21, is also placed. This enables any person to reliably recognize a replacement time of the working fluid and the filter (8) clogging, and enables a hydraulic system to be always actuated correctly.
COPYRIGHT: (C)1981,JPO&Japio
JP54076206A 1979-06-15 1979-06-15 Work vehicle safety equipment Expired JPS602526B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54076206A JPS602526B2 (en) 1979-06-15 1979-06-15 Work vehicle safety equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54076206A JPS602526B2 (en) 1979-06-15 1979-06-15 Work vehicle safety equipment

Publications (2)

Publication Number Publication Date
JPS563307A true JPS563307A (en) 1981-01-14
JPS602526B2 JPS602526B2 (en) 1985-01-22

Family

ID=13598681

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54076206A Expired JPS602526B2 (en) 1979-06-15 1979-06-15 Work vehicle safety equipment

Country Status (1)

Country Link
JP (1) JPS602526B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109628A (en) * 1982-12-13 1984-06-25 Kawasaki Heavy Ind Ltd Alarm device for filter exchange in construction machine
JPS6038830U (en) * 1983-08-24 1985-03-18 新明和工業株式会社 Power take-off device safety device
US8042532B2 (en) 2004-01-07 2011-10-25 Sharp Kabushiki Kaisha Heat-cooking apparatus
WO2012125337A3 (en) * 2011-03-11 2012-11-29 Allison Transmission, Inc. Clogged filter detection system and method
US9108499B2 (en) 2011-02-17 2015-08-18 Allison Transmisssion, Inc. Hydraulic system and method for a hybrid vehicle
US9488317B2 (en) 2011-06-22 2016-11-08 Allison Transmission, Inc. Low oil level detection system and method
US9657614B2 (en) 2011-02-09 2017-05-23 Allison Transmission, Inc. Scavenge pump oil level control system and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6311080B1 (en) * 2017-06-16 2018-04-11 株式会社小松製作所 Filter state estimation system and filter state estimation method

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109628A (en) * 1982-12-13 1984-06-25 Kawasaki Heavy Ind Ltd Alarm device for filter exchange in construction machine
JPS6038830U (en) * 1983-08-24 1985-03-18 新明和工業株式会社 Power take-off device safety device
US8042532B2 (en) 2004-01-07 2011-10-25 Sharp Kabushiki Kaisha Heat-cooking apparatus
US9657614B2 (en) 2011-02-09 2017-05-23 Allison Transmission, Inc. Scavenge pump oil level control system and method
US9108499B2 (en) 2011-02-17 2015-08-18 Allison Transmisssion, Inc. Hydraulic system and method for a hybrid vehicle
US9182034B2 (en) 2011-02-17 2015-11-10 Allison Transmission, Inc. Modulation control system and method for a hybrid transmission
US9494229B2 (en) 2011-02-17 2016-11-15 Allison Transmission, Inc. Modulation control system and method for a hybrid transmission
US9772032B2 (en) 2011-02-17 2017-09-26 Allison Transmission, Inc. Hydraulic system and method for a hybrid vehicle
WO2012125337A3 (en) * 2011-03-11 2012-11-29 Allison Transmission, Inc. Clogged filter detection system and method
US9429275B2 (en) 2011-03-11 2016-08-30 Allison Transmission, Inc. Clogged filter detection system and method
US9488317B2 (en) 2011-06-22 2016-11-08 Allison Transmission, Inc. Low oil level detection system and method

Also Published As

Publication number Publication date
JPS602526B2 (en) 1985-01-22

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