JPS6413399A - Method of controlling control valve for cargo-handling car - Google Patents

Method of controlling control valve for cargo-handling car

Info

Publication number
JPS6413399A
JPS6413399A JP16846587A JP16846587A JPS6413399A JP S6413399 A JPS6413399 A JP S6413399A JP 16846587 A JP16846587 A JP 16846587A JP 16846587 A JP16846587 A JP 16846587A JP S6413399 A JPS6413399 A JP S6413399A
Authority
JP
Japan
Prior art keywords
cargo handling
signal
control
fixed time
safety switch
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
JP16846587A
Other languages
Japanese (ja)
Other versions
JPH0451480B2 (en
Inventor
Hiroyuki Oba
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.)
Toyota Industries Corp
Original Assignee
Toyoda Automatic Loom Works 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 Toyoda Automatic Loom Works Ltd filed Critical Toyoda Automatic Loom Works Ltd
Priority to JP16846587A priority Critical patent/JPS6413399A/en
Publication of JPS6413399A publication Critical patent/JPS6413399A/en
Publication of JPH0451480B2 publication Critical patent/JPH0451480B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Operation Control Of Excavators (AREA)
  • Control And Safety Of Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Servomotors (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

PURPOSE: To make a cargo handling operation safe and easy by controlling an operation signal from a safety switch as if it were continued for fixed time when the operation signal is instantaneously changed from on to off and outputting a control signal by a cargo handling operation means. CONSTITUTION: When an operator operates a safety switch 19 inhibiting that a lift cylinder 1 is operated by a careless operation of a cargo handling operating layer 17 and the operation signal is immediately turned off after the signal is outputted for a moment, a CPU 33 of a control device 18 performs a control to the same state as a state when the operation signal is continuously outputted for fixed time. For this fixed time, a control signal corresponding to manipulated variable of the cargo handling operating lever 17 is outputted to electromagnetic switching valves 14A, 14B and the lift cylinder 1 is driven via a control valve for the cargo handling 2. Even if the cargo handling operating lever 17 is operated before the safety switch 19 is operated, the control device 18 does not output the control signal. Thus, a cargo handling operation of a forklift can be safely and easily performed.
JP16846587A 1987-07-06 1987-07-06 Method of controlling control valve for cargo-handling car Granted JPS6413399A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16846587A JPS6413399A (en) 1987-07-06 1987-07-06 Method of controlling control valve for cargo-handling car

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16846587A JPS6413399A (en) 1987-07-06 1987-07-06 Method of controlling control valve for cargo-handling car

Publications (2)

Publication Number Publication Date
JPS6413399A true JPS6413399A (en) 1989-01-18
JPH0451480B2 JPH0451480B2 (en) 1992-08-19

Family

ID=15868614

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16846587A Granted JPS6413399A (en) 1987-07-06 1987-07-06 Method of controlling control valve for cargo-handling car

Country Status (1)

Country Link
JP (1) JPS6413399A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784089A1 (en) * 1998-10-02 2000-04-07 Nippon Yusoki Co Ltd Fork lift truck load carrier has interrupter switch mounted on steering lever to prevent lifting and lowering of fork

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2784089A1 (en) * 1998-10-02 2000-04-07 Nippon Yusoki Co Ltd Fork lift truck load carrier has interrupter switch mounted on steering lever to prevent lifting and lowering of fork

Also Published As

Publication number Publication date
JPH0451480B2 (en) 1992-08-19

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