EP0439436A3 - A variable speed control device for fork lift equipment - Google Patents

A variable speed control device for fork lift equipment Download PDF

Info

Publication number
EP0439436A3
EP0439436A3 EP19910830009 EP91830009A EP0439436A3 EP 0439436 A3 EP0439436 A3 EP 0439436A3 EP 19910830009 EP19910830009 EP 19910830009 EP 91830009 A EP91830009 A EP 91830009A EP 0439436 A3 EP0439436 A3 EP 0439436A3
Authority
EP
European Patent Office
Prior art keywords
control device
speed control
variable speed
fork lift
lift equipment
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.)
Withdrawn
Application number
EP19910830009
Other versions
EP0439436A2 (en
Inventor
Pierino Polonelli
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.)
Zapi SpA
Original Assignee
Zapi SpA
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 Zapi SpA filed Critical Zapi SpA
Publication of EP0439436A2 publication Critical patent/EP0439436A2/en
Publication of EP0439436A3 publication Critical patent/EP0439436A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/24—Electrical devices or systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP19910830009 1990-01-24 1991-01-18 A variable speed control device for fork lift equipment Withdrawn EP0439436A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT400120 1990-01-24
IT40012A IT1239092B (en) 1990-01-24 1990-01-24 SPEED VARIATOR DEVICE IN FORKLIFT TRUCK.

Publications (2)

Publication Number Publication Date
EP0439436A2 EP0439436A2 (en) 1991-07-31
EP0439436A3 true EP0439436A3 (en) 1992-10-28

Family

ID=11246512

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910830009 Withdrawn EP0439436A3 (en) 1990-01-24 1991-01-18 A variable speed control device for fork lift equipment

Country Status (2)

Country Link
EP (1) EP0439436A3 (en)
IT (1) IT1239092B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7344000B2 (en) 2004-09-23 2008-03-18 Crown Equipment Corporation Electronically controlled valve for a materials handling vehicle
EP2675745B1 (en) 2011-02-16 2016-05-11 Crown Equipment Corporation Materials handling vehicle estimating a speed of a movable assembly from a lift motor speed

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097791A (en) * 1975-12-01 1978-06-27 Towmotor Corporation Delayed turn-on and turn-off control circuit
FR2499961A1 (en) * 1981-02-19 1982-08-20 Komatsu Forklift Control system for masted lift truck - has computer to establish lift height and mast tilt, with program to adjust these from data stored in memory
GB2095861A (en) * 1981-03-31 1982-10-06 Toyoda Automatic Loom Works Fork lift control system
US4586331A (en) * 1983-05-26 1986-05-06 Caterpillar Industrial Inc. Automatic hydraulic speed control
FR2603271A1 (en) * 1986-08-27 1988-03-04 Jungheinrich Kg LIFT TRUCK, ESPECIALLY INDUSTRIAL LIFT TRUCK, WITH LIFTING MAT
WO1988006566A1 (en) * 1987-02-25 1988-09-07 Caterpillar Industrial Inc. Load lifting device load sensing

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4097791A (en) * 1975-12-01 1978-06-27 Towmotor Corporation Delayed turn-on and turn-off control circuit
FR2499961A1 (en) * 1981-02-19 1982-08-20 Komatsu Forklift Control system for masted lift truck - has computer to establish lift height and mast tilt, with program to adjust these from data stored in memory
GB2095861A (en) * 1981-03-31 1982-10-06 Toyoda Automatic Loom Works Fork lift control system
US4586331A (en) * 1983-05-26 1986-05-06 Caterpillar Industrial Inc. Automatic hydraulic speed control
FR2603271A1 (en) * 1986-08-27 1988-03-04 Jungheinrich Kg LIFT TRUCK, ESPECIALLY INDUSTRIAL LIFT TRUCK, WITH LIFTING MAT
WO1988006566A1 (en) * 1987-02-25 1988-09-07 Caterpillar Industrial Inc. Load lifting device load sensing

Also Published As

Publication number Publication date
IT9040012A0 (en) 1990-01-24
IT9040012A1 (en) 1991-07-24
EP0439436A2 (en) 1991-07-31
IT1239092B (en) 1993-09-21

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