CA2475898A1 - Control system for material handling vehicle with dual control handles - Google Patents

Control system for material handling vehicle with dual control handles Download PDF

Info

Publication number
CA2475898A1
CA2475898A1 CA002475898A CA2475898A CA2475898A1 CA 2475898 A1 CA2475898 A1 CA 2475898A1 CA 002475898 A CA002475898 A CA 002475898A CA 2475898 A CA2475898 A CA 2475898A CA 2475898 A1 CA2475898 A1 CA 2475898A1
Authority
CA
Canada
Prior art keywords
handles
control system
control
material handling
handling vehicle
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
CA002475898A
Other languages
French (fr)
Other versions
CA2475898C (en
Inventor
Kevin Mcgoldrick
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.)
Raymond Corp
Original Assignee
Raymond 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 Raymond Corp filed Critical Raymond Corp
Publication of CA2475898A1 publication Critical patent/CA2475898A1/en
Application granted granted Critical
Publication of CA2475898C publication Critical patent/CA2475898C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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

Abstract

A material handling vehicle includes first and second control handles positioned at opposing ends of an operator compartment. The control system receives inputs from each of the first and second control handles and determines an appropriate travel direction and speed based on those inputs. In a normal mode, one of the handles is in the neutral state, and the input of the second handle is therefore used to direct motion of the truck. In a conflict state, each of the first and second control handles is providing a non-neutral travel request, and the control system determines an appropriate travel direction and speed based on a most conservative choice algorithm.
CA002475898A 2003-07-31 2004-07-28 Control system for material handling vehicle with dual control handles Active CA2475898C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/631,137 2003-07-31
US10/631,137 US6971470B2 (en) 2003-07-31 2003-07-31 Control system for material handling vehicle with dual control handles

Publications (2)

Publication Number Publication Date
CA2475898A1 true CA2475898A1 (en) 2005-01-31
CA2475898C CA2475898C (en) 2008-04-01

Family

ID=33552877

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002475898A Active CA2475898C (en) 2003-07-31 2004-07-28 Control system for material handling vehicle with dual control handles

Country Status (5)

Country Link
US (1) US6971470B2 (en)
EP (1) EP1505034B1 (en)
AU (1) AU2004203317B2 (en)
CA (1) CA2475898C (en)
DE (1) DE602004020715D1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7096999B2 (en) * 2003-08-05 2006-08-29 The Raymond Corporation Mast construction for a lift truck
JP4091955B2 (en) * 2005-12-02 2008-05-28 新キャタピラー三菱株式会社 Work machine
DE102006010695B4 (en) * 2006-03-08 2009-05-14 Sauer-Danfoss Aps Hydraulic steering
US8392049B2 (en) * 2006-07-17 2013-03-05 Nmhg Oregon, Llc Multi-direction vehicle control sensing
US7775317B1 (en) 2006-07-17 2010-08-17 Nmhg Oregon, Llc Multi-directional operator controls for an industrial vehicle
US8235161B2 (en) * 2007-07-06 2012-08-07 Nmhg Oregon, Llc Multiple-position steering control device
MX2008014783A (en) * 2008-02-05 2009-08-27 Krueger Int Inc Chair shell with integral hollow contoured support.
AU2014240360B2 (en) * 2008-02-05 2016-06-30 Crown Equipment Corporation A materials handling vehicle having a steer system including a tactile feedback device
US9045321B2 (en) * 2010-01-15 2015-06-02 Recon Engineering, Inc. Load transport system and method
DE102010047629A1 (en) * 2010-10-06 2012-04-12 Kion Warehouse Systems Gmbh Mobile work machine, in particular industrial truck, with at least two operating units
DE202014009101U1 (en) 2013-11-19 2015-02-09 Nacco Materials Handling Group, Inc. Backward control handle for a forklift
AU2016309784B2 (en) 2015-08-14 2020-10-22 Crown Equipment Corporation Model based diagnostics based on traction model
WO2017030774A1 (en) 2015-08-14 2017-02-23 Crown Equipment Corporation Model based diagnostics based on steering model
US10475371B2 (en) 2016-11-14 2019-11-12 Int Tech Co., Ltd. Pixel circuit in an electroluminescent display
US10414288B2 (en) 2017-01-13 2019-09-17 Crown Equipment Corporation Traction speed recovery based on steer wheel dynamic
EP3568332B1 (en) 2017-01-13 2021-11-03 Crown Equipment Corporation High speed straight ahead tiller desensitization

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593643A (en) * 1948-12-30 1952-04-22 Joy Mfg Co Switch control mechanism
US3937294A (en) * 1974-09-26 1976-02-10 Clark Equipment Company Operator hand control for industrial lift trucks
US4216847A (en) 1978-10-11 1980-08-12 Eaton Corporation Lift truck control
US4350972A (en) 1980-05-23 1982-09-21 General Electric Company Multiple console control system
US4437094A (en) 1981-10-15 1984-03-13 Rca Corporation System for controlling indicators for switches
SE426577B (en) * 1982-03-23 1983-01-31 Hiab Foco Ab DOUBLE COMMAND FOR VEHICLE-BORN WORK TOOLS, IN PARTICULAR CRANES
US5251722A (en) * 1991-09-26 1993-10-12 T. L. Smith Machine Co., Inc. Rear-discharge concrete mixer having rear-end transmission control
US5455762A (en) 1994-02-04 1995-10-03 Allen-Bradley Company, Inc. Motor controller having multiple command sources
US5515282A (en) 1994-04-25 1996-05-07 The Boeing Company Method and apparatus for implementing a databus voter to select flight command signals from one of several redundant asynchronous digital primary flight computers
DE19749679A1 (en) * 1997-11-10 1999-05-27 Steinbock Boss Gmbh Foerdertec Industrial truck, in particular picking device
US6216196B1 (en) 1999-05-14 2001-04-10 Ariel Corporation System and method for multiple device drivers to arbitrate for a single device
DE10051449A1 (en) * 2000-10-17 2002-04-18 Still Wagner Gmbh & Co Kg Mobile working machine, especially industrial truck has data lead(s) provided with which operating desks can be connected together, each desk connected with activation element operable by person
US6679349B1 (en) * 2002-02-20 2004-01-20 Robert W. Pollish, Jr. Fork lift apparatus

Also Published As

Publication number Publication date
EP1505034A3 (en) 2006-03-15
AU2004203317B2 (en) 2009-06-04
EP1505034B1 (en) 2009-04-22
AU2004203317A2 (en) 2005-02-17
AU2004203317A1 (en) 2005-02-17
US20050023066A1 (en) 2005-02-03
EP1505034A2 (en) 2005-02-09
DE602004020715D1 (en) 2009-06-04
CA2475898C (en) 2008-04-01
US6971470B2 (en) 2005-12-06

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