EP0386344B1 - Hubschlitten - Google Patents

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Publication number
EP0386344B1
EP0386344B1 EP89124170A EP89124170A EP0386344B1 EP 0386344 B1 EP0386344 B1 EP 0386344B1 EP 89124170 A EP89124170 A EP 89124170A EP 89124170 A EP89124170 A EP 89124170A EP 0386344 B1 EP0386344 B1 EP 0386344B1
Authority
EP
European Patent Office
Prior art keywords
load carrier
lifting carriage
pressure plate
lifting
carriage base
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 - Lifetime
Application number
EP89124170A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0386344A1 (de
Inventor
Peter Dipl.-Ing. Ahrens
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.)
Jungheinrich AG
Original Assignee
Jungheinrich AG
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 Jungheinrich AG filed Critical Jungheinrich AG
Publication of EP0386344A1 publication Critical patent/EP0386344A1/de
Application granted granted Critical
Publication of EP0386344B1 publication Critical patent/EP0386344B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • B66F9/147—Whole unit including fork support moves relative to mast
    • B66F9/148—Whole unit including fork support moves sideways
    • 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
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/16—Platforms; Forks; Other load supporting or gripping members inclinable relative to mast

Definitions

  • the invention relates to a lifting carriage according to the preamble of claim 1.
  • Such lifting carriages are guided in a height-adjustable manner on a lifting frame, for example an industrial truck.
  • the mast is fixed or relocatable on the truck. It forms the basis for the lifting carriage, which can be moved vertically on it. Pregnancy of the mast can be taken up and taken into account by special measures or can also be started by switching on a rest period.
  • a lifting carriage of the type mentioned at the outset has become known from FR-A-1 025 079.
  • the load carrier can be pivoted about a horizontal axis relative to the lifting carriage body with the aid of two adjusting cylinder arrangements.
  • the tines of the fork of the load carrier part can be moved laterally individually in the slots of the lifting carriage. This shift must be done by hand. It mainly serves to adjust the distance of the tines to the goods to be transported.
  • FR-A-1 500 190 a lifting slide has become known, in which the load carrier is held adjustably on the slide body via a scissor linkage and is adjustable by means of adjusting cylinders.
  • the load carrier can be pivoted about a horizontal axis.
  • two parallel adjustment cylinders act on a pressure plate on the back of the load carrier via a ball.
  • the invention has for its object to improve a lifting carriage, the load carrier is laterally displaceable with the aid of an adjusting cylinder, in such a way that the friction between the pivotably mounted load carrier and the pressure plate is reduced during the lateral displacement.
  • the load carrier is mounted on the pressure plate so as to be laterally displaceable, the pressure plate having elongated holes in the side displacement direction of the load carrier part, which are penetrated by fastening elements between the pressure plate and the pivotable load carrier.
  • a sliding plate made of friction-reducing material is arranged between the pressure plate and the load carrier, on which the pressure plate is mounted so as to be laterally displaceable.
  • At least one cylinder piston arrangement is pivotally mounted about an axis, the direction of which coincides with the pivot axis of the load carrier.
  • the load carrier is guided in a low-friction manner during a horizontal displacement, regardless of the respective swivel angle.
  • the pressure plate remains stationary with respect to the cylinder piston arrangement.
  • the interacting Surfaces of the load carrier and pressure plate are designed with low friction, so that only small forces are required for the adjustment of the load carrier in the horizontal direction.
  • an industrial truck only shown in principle in FIG. 4 is a vehicle with a chassis 1, front and rear wheels 2, 3, which can be driven and / or steered in pairs on the chassis.
  • a vehicle body 4 with a vehicle seat is arranged for this operating mode.
  • a panel 6 with control levers for drive and steering is arranged in the vehicle body 4, and batteries are arranged in the case of electric drive motors.
  • a lifting frame 7 is arranged on the chassis 1 and has lateral mast struts, possibly also extendable, with inwardly directed hollow profiles in which rollers 8, 9 of the lifting carriage are guided.
  • Drive means 10, possibly with a deflected chain 11, and also drive means 10 a for extending the mast sections are provided for the lifting slide and / or at least one extendable mast part.
  • the lifting carriage 12 can be seen more clearly from FIGS. 1-3.
  • the rollers 8 and 9 shown in Fig. 4 are designated in Fig. 1 with 8, 8 a and 9, 9 a. They are mounted on side members 15, 16 of the lifting carriage body 17 (FIG. 2) and are thus guided in a lifting frame 7 so that they cannot be moved laterally.
  • the pivot axis 13 is arranged, according to.
  • Fig. 1 in the illustrated embodiment consists of two pivot axis parts 13 a and 13 b, which are each arranged on one of the load carriers 15, 16.
  • Bearing bushes 50, 51, in which the swivel axis parts 13 a and 13 b are guided, are located on the longitudinal beams.
  • a lateral displacement cylinder piston arrangement 19 engages, which is connected via another universal joint 20 to a laterally displaceable extension 21 of the laterally displaceable load carrier 22.
  • the load carrier means shown in FIG. B. arranged in the form of fork arms.
  • the universal joints are required to also accommodate the deflection that results from a tilting movement about the pivot axis 13.
  • the cylinder piston arrangement 19 then slants in a direction perpendicular to the plane of the drawing in FIG. 1.
  • two cylinder piston arrangements 23, 24 are pivotably mounted in the lifting carriage body 17.
  • pivot axes one of which is shown at 25 for the cylinder piston arrangement 23 in FIG. 2, run parallel to the pivot axis 13.
  • the connected cylinder can thus be pivoted within the lifting slide body 17, while the extended piston rod 26 in the Rest position only has to emerge little.
  • the two cylinder piston assemblies 23, 24 are fixed, but in particular are pivotable relative to the mast 7 or longitudinal beams 15, 16 of the lifting carriage body 17.
  • a pressure plate 27 is guided on the pivotable load carrier 22 (FIG. 2). This pressure plate is fixed to the piston rods of the two cylinder piston assemblies 23, 24, a piston rod 26 being shown in FIG. 2. Because the load carrier 22 is laterally displaceable by means of the side displacement cylinder piston arrangement, the pressure plate 27 is guided laterally movably on the load carrier 22.
  • FIG. 1 shows the connecting plate 39 arranged on the longitudinal beams 15, 16. This is shown cut out in FIG. 1 so that the pressure plate 27 can be seen from the visible side, ie from the driver's side. At its end sections, this continuous pressure plate accommodates one system of one of the cylinder piston arrangements.
  • This pressure plate has elongated holes 30, 31 in the area of its end sections, which are penetrated by screws 32 (FIG. 2), the head 33 of which lies behind the pressure plate 27 and the screw nut 35 is countersunk in the load carrier 22.
  • the shaft 34 which passes through the elongated holes 30, 31, has a smaller cross section than the height of the elongated holes 30, 31.
  • the mother 35 can also have a smaller cross-section. However, it is backed by a 3-D washer to secure the seat, so that any passage through an elongated hole 30, 31 is prevented. So that the pressure plate 27 is laterally displaceable.
  • spherical cap-shaped recesses 36 each aligned with the piston rod 26, can be arranged on the rear side of the pressure plate.
  • Abutments in the form of tabs 37, 38 are arranged on the pressure plate in the direction of pivoting. This also results from the side view in FIG. 5 with the pressure plate 27.
  • counter bearings 40, 41 are arranged on a connecting plate, which are arranged at the height of the tabs 37, 38.
  • adjustable sliding plates 43, 44 guided, which abut the tabs 37, 38 and hold these tabs in their aligned position, so that the pressure plate 27 does not move laterally relative to the lifting carriage 12 or the lifting carriage body 17.
  • a sliding plate 45 for example made of low-friction plastic, is arranged between the pressure plate 27 on the one hand and the load carrier 22 on the other hand.
  • the swiveling force applied can also be absorbed without any significant side load, even under load from the swivel cylinder, ie the cylinder piston arrangements 23, 24 be when the load carrier 22 is moved laterally.
  • the pivoting is also subject to only slight frictional influences, because the sliding plates 43, 44 allow pivoting with respect to FIG. 1 perpendicular to the plane of the drawing without significant friction losses.
  • the connecting plate 39 is also arranged on the lifting slide body 17, in whose openings, one of which is designated by 46 in FIG. 2, the cylinder piston arrangements 23, 24 are mounted.
  • the pivot axes 25 are mounted in bearing bushes 47, 47 a, 48, 48 a, which are provided in the connecting plate 39 or on forward-facing approaches of the connecting plate 39.
  • Fig. 3 shows an explanatory view upwards.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP89124170A 1989-03-08 1989-12-30 Hubschlitten Expired - Lifetime EP0386344B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907440A DE3907440A1 (de) 1989-03-08 1989-03-08 Hubschlitten
DE3907440 1989-03-08

Publications (2)

Publication Number Publication Date
EP0386344A1 EP0386344A1 (de) 1990-09-12
EP0386344B1 true EP0386344B1 (de) 1994-03-02

Family

ID=6375807

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89124170A Expired - Lifetime EP0386344B1 (de) 1989-03-08 1989-12-30 Hubschlitten

Country Status (2)

Country Link
EP (1) EP0386344B1 (enrdf_load_stackoverflow)
DE (2) DE3907440A1 (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244469A (en) * 1990-05-30 1991-12-04 James Risk Apparatus for carrying bales
DE9209926U1 (de) * 1992-07-23 1992-09-24 Chu, Chin-Fu, Chia I Hebevorrichtung für die Wartung von Autos
DE4444050C1 (de) * 1994-12-10 1996-03-21 Josef Paul Hydraulisches Lasthubsystem auf einem Nutzfahrzeug mit Drehrahmen für den Containertransport
NL1024140C2 (nl) * 2003-08-20 2005-02-22 Willem O Kikstra Beheer B V Voertuig met hefmiddelen.
DE102013209906A1 (de) * 2013-05-28 2014-12-04 Rogama Bv Gabelträgerneigung
EP3173372B1 (en) * 2015-11-30 2019-10-16 Toyota Material Handling Manufacturing Sweden AB A load carrier for a forklift truck

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1084115A (enrdf_load_stackoverflow) * 1900-01-01
FR1025079A (fr) * 1949-09-13 1953-04-10 Clark Equipment Co Chariot industriel pour la manutention des charges
DE971012C (de) * 1949-09-13 1958-11-27 Clark Equipment Co Hubstapler
DE1748976U (de) * 1957-05-02 1957-07-18 Hans Still Ag Gabelkippvorrichtung fuer gabelstapler.
DE1145097B (de) * 1958-10-13 1963-03-07 Irion & Vosseler Hublader mit einem kippbaren Lasttraeger
DE1178372B (de) * 1960-11-14 1964-09-17 Irion & Vosseler Hublader mit kippbarem Lasttraeger
US3414150A (en) * 1965-08-17 1968-12-03 Eaton Yale & Towne Scissors extender
CH445378A (it) * 1965-08-18 1967-10-15 Om Spa Dispositivo per consentire l'inclinazione della forca rispetto al gruppo sollevatore di un carrello elevatore
US3572530A (en) * 1969-04-16 1971-03-30 Eaton Yale & Towne Industrial truck
DE2142650A1 (de) * 1971-08-25 1973-03-15 Bygg Och Transportekonomie Ab Hubfahrzeug
GB1588522A (en) * 1978-02-02 1981-04-23 Truck Sales Peterborough Ltd Activator for fork-lift trucks
DE8032810U1 (de) * 1980-12-10 1981-04-02 Eaton Ltd., Hounslow, Middlesex Zwischen zwei im wesentlichen senkrechten fuehrungssaeulen eines gabelstaplers hoehenverschieblich gelagerter hubschlitten
DE3730272A1 (de) * 1987-09-09 1989-04-06 Steinbock Gmbh Stapler

Also Published As

Publication number Publication date
DE3907440A1 (de) 1990-10-04
EP0386344A1 (de) 1990-09-12
DE3907440C2 (enrdf_load_stackoverflow) 1991-05-08
DE58907114D1 (de) 1994-04-07

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