WO2014139843A1 - Chassis de levage pour chariot de manutention - Google Patents

Chassis de levage pour chariot de manutention Download PDF

Info

Publication number
WO2014139843A1
WO2014139843A1 PCT/EP2014/054243 EP2014054243W WO2014139843A1 WO 2014139843 A1 WO2014139843 A1 WO 2014139843A1 EP 2014054243 W EP2014054243 W EP 2014054243W WO 2014139843 A1 WO2014139843 A1 WO 2014139843A1
Authority
WO
WIPO (PCT)
Prior art keywords
mast
connecting plate
rails
rail
connecting plates
Prior art date
Application number
PCT/EP2014/054243
Other languages
German (de)
English (en)
Inventor
Kai Fischer
Piotr Mehloch
Original Assignee
Jungheinrich Aktiengesellschaft
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 Aktiengesellschaft filed Critical Jungheinrich Aktiengesellschaft
Priority to EP14708023.8A priority Critical patent/EP2969891B1/fr
Priority to CN201480013448.5A priority patent/CN105246820B/zh
Publication of WO2014139843A1 publication Critical patent/WO2014139843A1/fr

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
    • B66F9/08—Masts; Guides; Chains

Definitions

  • the present invention relates to a mast for an industrial truck, in particular for a reach truck.
  • the mast has a load supporting means and three mast frames, each having at least two cross members interconnected rails.
  • the mast frames are at least partially arranged inside each other so that they are formed as an inner mast, a center mast and an outer mast.
  • the inner mast is supported in the center mast and the center mast is supported in the outer mast.
  • the outer mast is held by a mast holder on the vehicle.
  • the mast holder is arranged displaceably in the vehicle longitudinal direction.
  • the invention has for its object to provide a mast, which can accommodate large loads stable even at high lifting heights and at the same time has a compact design.
  • the mast according to the invention is provided and intended for an industrial truck, in particular for a reach truck.
  • the mast is equipped with a load support and three mast frames, each having two interconnected via at least two cross members rails.
  • the mast frames are formed as an inner mast, a center mast and an outer mast, of which the inner mast is supported in the center mast and this in the outer mast.
  • the outer mast is designed to be held in a mast holder.
  • each rail of the outer mast is provided on its side facing away from the load bearing means with a connecting plate and a rear pull.
  • Each rear pull extends along the profile rail and is connected at its lower, pointing to the mast holder end with the corresponding connection plate of the rail.
  • the upper end of the rear pull preferably extends to the upper end of the outer mast.
  • a cross member is disposed between the connection plates.
  • contemporary design of the outer mast a Deutschenzug is provided for each of the rails, which runs along the rail and spaced from this.
  • the pull-out is arranged at its end facing the mast holder on the connecting plate and connected thereto.
  • the provided in the mast holder cross member, which receives the transverse forces acting between the rails, is also connected via the connecting plates with the rails.
  • both the forwarded by the pull of the outer mast forces and the transverse forces acting between the rails are introduced via the connecting plates in the rails.
  • the cross member between connecting plates and the rear train is connected in a common height with the connecting plates.
  • the connecting plates In this way, widely spaced introduction points for the attacking forces are avoided and it takes place in a spatially compact manner, the introduction of the forces acting on the outer mast forces.
  • the introduction of the forces from each of the rear links into the connecting plate is assisted by connecting each of the rear links with a flat side and in particular with its largest flat side with the associated connecting plate.
  • each of the connection plates has a greater width than the profile rail of the outer mast, wherein the connection plates extend into the region between the profile rails.
  • the connecting plates are each wider than the profile rails of the outer mast on the side facing away from the load supporting means.
  • the rails are arranged on the outer mast that they project into the area between the rails of the outer mast.
  • the connecting plates can protrude laterally outward beyond the profiled rails or can be flush with the profiled rails on their outer sides.
  • each of the connecting plates tapers at its end pointing to the rear end in its width. The pointing to the rear
  • YES End of the connecting plate is the upward-facing end of the connecting plate.
  • the width here refers to the plane spanned by the rails of the outer mast.
  • the tapered end of the connection plate causes the surface with which the connection plate is connected to the profile rail of the outer mast to decrease along the connection plate.
  • the force over the entire width of the connecting plate or over the entire width of the rail can be introduced into the connecting plate, in the tapered region of the connecting plate is only connected to the rail portion of the connecting plate for the introduction of the force available , As a result, a uniform force flow is effected, can be avoided with the force and voltage peaks on the outer mast.
  • the rear end of the connecting plate is formed with a triangular shape.
  • the pull from above initially strikes a very narrow area of the connecting plate in the region of a tip of the triangle.
  • the connecting surface between the rear draw and connecting plate in the direction down to the crossbar steadily increases.
  • an edge of the rear strip coincides with an edge of the connecting plate, wherein the rear strip connected to the connecting plate is connected to its end over its entire width with the connecting plate.
  • transverse struts are each arranged with their ends between the rear train and rail. This means that in the cross struts, the connection of the rear pull on the back of the rail via the cross struts.
  • the ends of the transverse struts are provided with a spacer.
  • Fig. 1 is a mast in an extended state in a perspective
  • Fig. 4 shows the outer mast in a perspective view obliquely from behind
  • Fig. 5 is a cross strut of the outer mast in a perspective view.
  • Fig. 1 shows a perspective view of the mast 10 in a front view.
  • the mast 10 has a provided with a pair of tines load support means 12 and three nested mast frames 14, 16, 18.
  • the load supporting means 12 is adjustable in height along the inner mast.
  • the outer mast 14 is formed laterally with a projecting bearing pin 20 which cooperates with a mast holder (not shown).
  • the load supporting means 12 is moved along the inner mast via the free-lifting cylinder 22.
  • the free-lifting cylinder 22 has a sprocket 24, over which a lifting chain 26 runs.
  • the total acting on the mast forces are introduced via the load supporting means 12 and the mast frame in the outer mast. About the mast holder, which cooperates with the protruding pin 20, these forces are then introduced into the vehicle.
  • Fig. 3 shows the outer mast 14 with its rails 28, 30.
  • the rails 28, 30 are connected by cross braces 32 and a head portion 34 together.
  • the head portion 34 has, as shown in Fig. 4, two laterally extending cheeks 36, which are interconnected via two cross members 38, 40.
  • each of the profile rails 28, 30 is equipped with a connecting plate 42, 44.
  • the connecting plates 44 and 42 are approximately aligned with the outer edge 46, 48 of the respective rail 28, 30.
  • the inner edges 50, 52 of the connecting plates 42 and 44 are inwardly in the space between the rails 28, 30th in front.
  • the connecting plates 42 and 44 are respectively welded to the rails 28 and 30 on the side facing away from the load supporting means.
  • Between the connecting plates 44, 42 a cross member 54 is arranged.
  • the cross member 54 is welded at its ends, in shock, in each case with the edges 50, 52 of the connecting plates.
  • the connecting plates 42, 44 components along their edge on impact, ie without overlap, welded together.
  • the connecting plates 42, 44 each have a triangular portion 56, 58.
  • the triangular tips 56, 58 are concealed by the rear members 60, 62 as shown in FIG. In Fig. 3, the triangular peaks are dash-dotted lines for clarity better indicated.
  • the triangular areas 56, 58 begin immediately above the cross member 54.
  • the backs 60, 62 are connected to the connecting plate.
  • the triangular shape of the connecting plates causes the flat connection between the rear 60 and connecting plate 42 after a first contact point 64 initially increases steadily before there is a full-surface connection of the rear pull with the connecting plate. Likewise the connection to the profile rail.
  • a further cross member 66 is provided, which is not connected via the connecting plates with the rails 28, 30, but is directly connected thereto.
  • the connection of the rear trains 60, 62 takes place not only via the connecting plates 42, 44, but in addition on the cross struts 32.
  • the cross struts 32 have at their ends a spacer 66.
  • the cross member 32 has a widened each End 33, which is provided with a trough-shaped recess 35. The recess 35 is partially contaminated by the spacer 66.
  • the cross member 32 is connected to each rail of the outer mast in two areas and the spacer 66 with the respective rear train 60, 62. In this case, the connection of the spacer 66 is located between the connecting portions of the cross member 32 with the rail. In this way, the rear trains 60, 62 are guided at a defined distance from the profile rails. It is expedient if the thickness of cross member 32 and spacer 66 and the thickness of the connecting plates 42, 44 corresponds.

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)
  • Support Devices For Sliding Doors (AREA)

Abstract

Châssis de levage pour chariot de manutention, notamment pour un chariot à mât rétractable, comportant un engin porte-charge et trois segments de mât présentant chacun deux rails profilés reliés ensemble par au moins deux traverses, les segments de mât formant un mât interne, un mât intermédiaire et un mât externe, le mât interne étant supporté par le mât intermédiaire et le mât intermédiaire étant supporté par le mât externe, chaque rail profilé du mât externe étant pourvu d'une plaque de liaison et d'une colonne arrière sur le côté opposé à l'engin porte-charge, chaque colonne arrière étant reliée à la plaque de liaison correspondante par son extrémité orientée vers le porte-mât et une traverse étant disposée entre les plaques de liaison.
PCT/EP2014/054243 2013-03-15 2014-03-05 Chassis de levage pour chariot de manutention WO2014139843A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14708023.8A EP2969891B1 (fr) 2013-03-15 2014-03-05 Chassis de levage pour chariot de manutention
CN201480013448.5A CN105246820B (zh) 2013-03-15 2014-03-05 叉车用门架总成

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013004434.0A DE102013004434A1 (de) 2013-03-15 2013-03-15 Hubgerüst für ein Flurförderzeug
DE102013004434.0 2013-03-15

Publications (1)

Publication Number Publication Date
WO2014139843A1 true WO2014139843A1 (fr) 2014-09-18

Family

ID=50231167

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2014/054243 WO2014139843A1 (fr) 2013-03-15 2014-03-05 Chassis de levage pour chariot de manutention

Country Status (4)

Country Link
EP (1) EP2969891B1 (fr)
CN (1) CN105246820B (fr)
DE (1) DE102013004434A1 (fr)
WO (1) WO2014139843A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104355271B (zh) * 2014-10-23 2017-01-25 安徽合力股份有限公司 一种实现高起升的前移式叉车的起重系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992005101A1 (fr) * 1990-09-24 1992-04-02 Clark Equipment Company Chariot elevateur a haute visibilite, ensemble a montants et chariot combine et systeme gerbeur lateral pour chariot elevateur
JPH10152298A (ja) * 1996-11-22 1998-06-09 Nissan Motor Co Ltd フォークリフトトラックのマスト装置
JP2001247298A (ja) 2000-03-08 2001-09-11 Tcm Corp マスト構造
JP2004284761A (ja) * 2003-03-24 2004-10-14 Komatsu Forklift Co Ltd 外マストロアステー装置
EP1505033A1 (fr) * 2003-08-05 2005-02-09 The Raymond Corporation Mât pour chariot élévateur à fourches

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7712146U1 (de) * 1977-04-19 1978-02-09 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Freisichthubgeruest
DE3041910C2 (de) * 1980-11-06 1986-01-23 Jungheinrich Unternehmensverwaltung Kg, 2000 Hamburg Hubgerüst für Hublader
JP5233218B2 (ja) * 2007-09-20 2013-07-10 株式会社豊田自動織機 フォークリフトにおけるマスト装置
CN202594724U (zh) * 2012-02-29 2012-12-12 台励福机器设备(青岛)有限公司 叉车用三截宽视野桅杆总成装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992005101A1 (fr) * 1990-09-24 1992-04-02 Clark Equipment Company Chariot elevateur a haute visibilite, ensemble a montants et chariot combine et systeme gerbeur lateral pour chariot elevateur
JPH10152298A (ja) * 1996-11-22 1998-06-09 Nissan Motor Co Ltd フォークリフトトラックのマスト装置
JP2001247298A (ja) 2000-03-08 2001-09-11 Tcm Corp マスト構造
JP2004284761A (ja) * 2003-03-24 2004-10-14 Komatsu Forklift Co Ltd 外マストロアステー装置
EP1505033A1 (fr) * 2003-08-05 2005-02-09 The Raymond Corporation Mât pour chariot élévateur à fourches
US7398859B2 (en) 2003-08-05 2008-07-15 The Raymond Corporation Mast construction for a lift truck

Also Published As

Publication number Publication date
EP2969891B1 (fr) 2018-01-03
DE102013004434A1 (de) 2014-09-18
CN105246820B (zh) 2018-08-03
CN105246820A (zh) 2016-01-13
EP2969891A1 (fr) 2016-01-20

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