DE3071653D1 - Force-moment compensating apparatus - Google Patents

Force-moment compensating apparatus

Info

Publication number
DE3071653D1
DE3071653D1 DE8181901391T DE3071653T DE3071653D1 DE 3071653 D1 DE3071653 D1 DE 3071653D1 DE 8181901391 T DE8181901391 T DE 8181901391T DE 3071653 T DE3071653 T DE 3071653T DE 3071653 D1 DE3071653 D1 DE 3071653D1
Authority
DE
Germany
Prior art keywords
force
moment
counterweight
change
compensating apparatus
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.)
Expired
Application number
DE8181901391T
Other languages
German (de)
Inventor
James M Williams Iv
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of DE3071653D1 publication Critical patent/DE3071653D1/en
Expired 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
    • B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
    • B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
    • 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
    • B66F9/07554—Counterweights

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Civil Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)
  • Jib Cranes (AREA)
  • Joining Of Building Structures In Genera (AREA)

Abstract

In prior load handling apparatuses with fixed counter weights, the force moments acting on the apparatuses changes if the position and weight of the load changes. However the force-moment due to the counterweight does no change. This problem is solved by providing sensors (108, 112) (77) to sense a change in the force-moment acting on an apparatus and an actuator (50) (67, 68) responsive to the sensed condition to adjust a counterweight (64) to provide a stable condition. This solution is applied to a fork-lift truck (10) having a tiltable mast (15).
DE8181901391T 1980-09-02 1980-09-02 Force-moment compensating apparatus Expired DE3071653D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1980/001131 WO1982000815A1 (en) 1980-09-02 1980-09-02 Force-moment compensating apparatus

Publications (1)

Publication Number Publication Date
DE3071653D1 true DE3071653D1 (en) 1986-07-24

Family

ID=22154519

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181901391T Expired DE3071653D1 (en) 1980-09-02 1980-09-02 Force-moment compensating apparatus

Country Status (6)

Country Link
EP (1) EP0058671B1 (en)
JP (1) JPS57501424A (en)
AT (1) ATE20458T1 (en)
AU (1) AU7223581A (en)
DE (1) DE3071653D1 (en)
WO (1) WO1982000815A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2160167B (en) * 1984-06-04 1987-12-02 Trevor Frederick Spencer Improvements in or relating to tractors
AU623485B2 (en) * 1989-01-31 1992-05-14 Phillip Jules Arnold Fork lift truck
DE29922311U1 (en) * 1998-12-23 2000-04-06 Palfinger Crayler Staplertechn Forklift
GB2347132A (en) * 1999-02-27 2000-08-30 Translift Engineering Limited Lift truck
GB2355244A (en) * 1999-08-05 2001-04-18 Terence Harley Fork-lift truck auto-balancing system
ITTO20070365A1 (en) * 2007-05-23 2008-11-24 Cnh Italia Spa METHOD AND DEVICE FOR THE LONGITUDINAL BALANCE OF AN AGRICULTURAL VEHICLE
US8131433B2 (en) 2007-05-23 2012-03-06 Cnh America Llc Device for longitudinally balancing an agricultural vehicle

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2759563A (en) * 1952-09-13 1956-08-21 Marnon Adjustable counterweight for lift vehicles
DE1057534B (en) * 1957-02-01 1959-05-14 Hans Still Ag Counterweight for truck
US2935161A (en) * 1957-11-07 1960-05-03 Allis Chalmers Mfg Co Safety system for load elevating vehicles
US2916172A (en) * 1958-06-13 1959-12-08 Burton H Locke Fork lift truck with shiftable ballast
FR1330879A (en) * 1962-05-17 1963-06-28 Device for distributing the weight of a vehicle carrying cantilever loads over the axles
US3497095A (en) * 1966-01-12 1970-02-24 Benjamin L Couberly Counterbalance apparatus for a lift truck
US3713129A (en) * 1970-03-30 1973-01-23 R Buchholz Crane overloading protective system
US3680714A (en) * 1970-07-22 1972-08-01 Case Co J I Safety device for mobile cranes
PL76664B1 (en) * 1971-05-13 1975-02-28
US3734326A (en) * 1971-07-15 1973-05-22 Eaton Corp Variable capacity lift truck
GB1526047A (en) * 1974-11-22 1978-09-27 Pye Ltd Calibration of crane load indicating arrangement
US4068773A (en) * 1975-04-03 1978-01-17 Allis-Chalmers Corporation Lift vehicle with fail-safe overload protective system
US3993166A (en) * 1975-04-29 1976-11-23 Bofors America, Inc. Overload signalling system for fork lift trucks and the like
FR2415599A1 (en) * 1978-01-26 1979-08-24 B & A Eng Co LOAD WEIGHING DEVICE FOR CRANES
US4221530A (en) * 1978-06-08 1980-09-09 Williams Iv James M Force-moment compensating apparatus

Also Published As

Publication number Publication date
EP0058671A1 (en) 1982-09-01
EP0058671A4 (en) 1983-04-29
JPS57501424A (en) 1982-08-12
AU7223581A (en) 1982-04-05
WO1982000815A1 (en) 1982-03-18
EP0058671B1 (en) 1986-06-18
ATE20458T1 (en) 1986-07-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee