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EP2628705B1 - Cadre de levage d'un chariot de manutention - Google Patents

Cadre de levage d'un chariot de manutention Download PDF

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Publication number
EP2628705B1
EP2628705B1 EP13153692.2A EP13153692A EP2628705B1 EP 2628705 B1 EP2628705 B1 EP 2628705B1 EP 13153692 A EP13153692 A EP 13153692A EP 2628705 B1 EP2628705 B1 EP 2628705B1
Authority
EP
European Patent Office
Prior art keywords
mast
load
web
extendible
profile
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.)
Not-in-force
Application number
EP13153692.2A
Other languages
German (de)
English (en)
Other versions
EP2628705B9 (fr
EP2628705A3 (fr
EP2628705A2 (fr
Inventor
Dieter Steigerwald
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.)
Linde Material Handling GmbH
Original Assignee
Linde Material Handling GmbH
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 Linde Material Handling GmbH filed Critical Linde Material Handling GmbH
Publication of EP2628705A2 publication Critical patent/EP2628705A2/fr
Publication of EP2628705A3 publication Critical patent/EP2628705A3/fr
Application granted granted Critical
Publication of EP2628705B1 publication Critical patent/EP2628705B1/fr
Publication of EP2628705B9 publication Critical patent/EP2628705B9/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B66F9/08—Masts; Guides; Chains

Definitions

  • the invention relates to a mast of a truck with a trained as a mast outer mast and at least one designed as an inner mast or center mast extension mast, the mast and the extension mast is formed from two laterally spaced vertical rail profiles and at least one support roller is arranged in the lower part of the extension mast which leads the extension mast in the stationary mast and which is connected to the rail profiles of the stationary mast, opposite treads in communication.
  • a duplex mast comprises a standing mast formed as an outer mast, in which a trained as an inner mast extension mast is guided by means of support rollers.
  • a load carrier such as a fork carriage, guided by means of load rollers.
  • a triplex masts comprises a trained as an outer mast mast, in which by means of support rollers designed as a center mast extension mast, wherein in the extension mast by means of further support rollers another trained as an inner mast extension mast is guided, in which the load carrier is guided by means of corresponding support rollers.
  • the stand mast and the extension masts in this case each consist of two laterally spaced rail profiles, which are connected by means of transverse struts to a load-bearing structure.
  • the rail profiles in this case have profile chambers in which running surfaces are formed for the support rollers.
  • the laterally spaced rail profiles of the stationary mast and the extension mast in this case form a right and left mast tower column of the mast.
  • the US Pat. No. 4,506,764 A discloses a designed as a duplex mast of the triplex mast mast of a truck with a trained as a mast outer mast in which at least one designed as an inner mast or center mast extension mast is arranged.
  • the stand mast and the extension mast each consist of two laterally spaced and vertical rail profiles.
  • a triplex mast known in which the rail profiles of the stationary mast have a C-shaped or U-shaped cross-section and the rail profiles of the extension mast have an I-shaped cross-section.
  • the opposite running surfaces for the support rollers are formed on opposite webs of the rail profiles which form corresponding profile chambers in which the support rollers are arranged. Since the rail profile of the stationary mast and the rail profiles of the extension masts have a different distance between the running surfaces and the distance between the running surfaces on the stationary mast compared to the distance between the running surfaces on the extension mast, support rollers with different diameters are required in such a mast. However, this increases the construction cost of the mast.
  • the DE 20 2008 006 141 U1 revealed in the FIG. 4 a designed as a triplex mast mast of a truck with a trained as a mast outer mast and designed as an extension masts inner masts.
  • the outer mast consists of two laterally spaced rail profiles, which have an E-shaped cross-section.
  • the mast should have a low visual obstruction for an operator of the truck.
  • the greatest possible transparency between the inner edges of the inner mast should be achieved by the two mast columns of the mast.
  • the view should be limited as little as possible laterally on the stationary mast and thus on the mast.
  • Industrial trucks where the driver's workstation is usually arranged eccentrically to a longitudinal axis of the truck, arise in a symmetrical arrangement of the left and right rail profiles of the mast by the outer edges of the rail profiles of the stand mast different and uneven visual shadow, the side of an impairment of the view leads the mast over.
  • the requirements for high rigidity and low visual disabilities are contradictory, since an increase in the profile cross sections of the stand mast and the extension mast Although an increased stiffness of the mast is achieved, the enlargement of the profile cross sections, however, is accompanied by an increased visual obstruction.
  • the present invention has for its object to provide such a mast of an industrial truck is available, which has an improved rigidity of the rail profiles and allows reduced visual obstructions and allows the use of the same size support rollers.
  • the rail profile of the stationary mast has an E-shaped cross section, wherein between a load-near web and a load distant web of the rail profile of the stand mast an additional web is formed on the rail profile of the stand mast, wherein the load near the web and the additional Ridge of the rail profile of the stationary mast form an inwardly facing profile chamber which receives the arranged on the Ausfahrmast support roller, and a load-bearing tread for arranged on the Ausfahrmast support roller on the load-near web of the rail profile of the stationary mast and a remote load bearing surface for the arranged on the Ausfahrmast Support roller is formed on the additional web of the rail profile of the stationary mast.
  • the rail profile according to the invention of the stationary mast thus has an E-shaped cross-section, which is provided with an additional web which is arranged between the load-near web and the load-distant web and on which a load-distant running surface is formed for the arranged on the Ausfahrmast support roller.
  • the E-shaped rail profile of the stand according to the invention thus allows with a tread for the support roller forming additional web compared to a C or U-shaped rail profile of a prior art mast of the prior art, a reduction in the dimension of the profile chamber, so that the profile chamber of the mast to the Profile chambers of the extension mast can be adjusted and an equal distance of the running surfaces on the stand mast and the extension mast can be achieved, whereby arranged on the Ausfahrmast and the Ausfahrmast in the stand mast supporting role can be reduced in diameter and the possibility of using the same size support rollers on the mast without additional sliding elements is made possible.
  • the additional web leads to the E-shaped rail profile according to the invention of the stationary mast to an additional material surface in the remote area, whereby the rail profile of the invention according to the invention mast increased surface moments of inertia.
  • the achievable with the inventive E-shaped cross-section of the rail profile of the stationary mast area moments of inertia lead to increased rigidity of the stationary mast against deflections and twists and make it possible to reduce the dimensions of the stationary mast, so that reduced visual obstructions can be achieved.
  • the webs of the rail profile of the stationary mast are arranged in the vehicle transverse direction of the truck and the rail profile of the stationary mast with an outer surface inclined to a vehicle longitudinal axis of the truck in the direction of a line of sight of an operator located on a driver's workplace.
  • the tilted in the direction of the line of sight or along the line of sight of the operator located on the driver's workplace inclined and beveled execution of the outer surface of the stationary mast leads to a further reduction of obstructions, since the inclined outer surface of the rail profile of the stationary mast the visual shadow can be reduced and improved View is achieved laterally past the stand mast.
  • the arrangement of the webs of the rail profile in the vehicle transverse direction and thus perpendicular to the vehicle longitudinal axis leads in the view optimized arrangement of the tapered outer surface to a favorable force from the support roller to the running surfaces on the rail profile of the stand mast, so that compared to an oblique arrangement of the webs reduced lateral forces can be achieved , which allow small-built support rollers.
  • the rail profile of the extension mast and / or another extension mast has an I-shaped cross-section, wherein the rail profile of the extension mast and / or the further extension mast is arranged oriented in the vehicle longitudinal direction and has webs arranged in the vehicle transverse direction.
  • the arrangement of the rail profiles of at least one extension mast in the vehicle longitudinal direction allows high moment of inertia of the extension masts and leads to a small width of the corresponding mast tower, so that a high rigidity and low visual shadow and reduced visual obstructions can be achieved.
  • the arranged in the vehicle transverse direction webs of at least one extension mast allow favorable loads of the Ausfahrmaste leading support rollers.
  • the rail profile of the extension mast is nested and offset to the load-distant web offset in the rail profile the stand mast is arranged, wherein a load-near web of the extension mast adjacent to the load-near web of the stand mast arranged in the profile chamber of the stand mast and a lastferner web of the extension mast is arranged in a formed between the additional web and the load distant web recess of the stand mast.
  • the I-shaped rail profile of the extension mast is thus arranged with the load-near web in the profile chamber of the stand mast and the load-distant web between the load distant web and the additional web of the E-shaped stand mast, whereby the rail profile of the extension mast with respect to the stationary mast set back to the load distant side is arranged.
  • Such a nested arrangement of the rail profile of the extension mast in the rail profile of the stationary mast allows a small width of the corresponding mast column with correspondingly low visual impairments.
  • an outwardly facing and an inwardly facing profile chamber is formed on the Ausfahrmast from the near-load bridge and the load distant web, wherein on the outward facing profile chamber on the load-near web a near-load running surface for a arranged on the stationary mast support roller for guiding the Ausfahrmastes and on the load distant web a remote load bearing surface for the support roller is formed.
  • a load near tread is expediently on the load-near web for a on a further extension mast or on a load carrier, in particular a fork carriage, arranged support roller for guiding the further extension mast or Lastrysund on the load distant web a remote from the tread for formed the support roller.
  • the load carrier can be guided by means of support rollers in the extension mast in a duplex mast according to the invention in a simple manner. Accordingly, at the running surfaces of the inwardly facing profile chamber of the extension mast in a Triplex mast according to the invention in a simple way another Ausfahrmast be performed by means of support rollers in the extension mast.
  • the rail profile of another extension mast is nested in the rail profile of the extension mast, the load near the web of the further extension mast aligned with the load-near web of the stand mast and the load distant web of the extension mast with the additional web of the stand mast.
  • the further, designed as an inner mast extension mast of a triplex mast is thus offset from the trained as a central mast extension mast to the load side, the webs of the further extension mast are aligned with the load-near web and the additional web of the stand mast.
  • the rail profile of the further extension mast is thus aligned as the rail profile of the extension mast in the vehicle longitudinal direction and provided with webs arranged in the vehicle transverse direction, with the nested arrangement of the extension masts in conjunction with the sight-optimized oblique arrangement of the outer surface of the mast high rigidity of the mast with a low Width of the corresponding mast column is achieved, which allows a low visual shadow and reduced visibility.
  • an outwardly facing and an inwardly facing profile chamber is formed by the load-near web and the load-distant web, wherein at the outward-facing profile chamber on the load near web a near-load running surface for a arranged on the Ausfahrmast support roller for guiding the further extension mast and at the load distant web a remote load bearing surface for the support roller is formed in a triplex mast by means of appropriate support rollers of the further extension mast can be performed in a simple manner in the extension mast.
  • the load carrier can be performed in a simple manner by means of appropriate support rollers in the further extension mast.
  • the distance of the running surfaces in the profile chamber of the stationary mast essentially corresponds to the distance of the running surfaces in the profile chambers of the extension mast and / or the other Extension mast, so that same size support rollers for guiding the extension mast and / or the further extension mast and the load carrier can be used.
  • the rail profile of the extension mast and / or the further extension mast at the load-distant web is provided with a reinforcing rib.
  • a reinforcing rib leads to the I-shaped rail profile of the extension mast and the further extension mast to an additional material surface in the remote area, whereby the rail profile of the extension mast and the further extension mast has increased area moments of inertia.
  • the achievable area moments of inertia lead with small dimensions of the rail profiles to increased rigidity of the extension mast and the further extension mast against deflections and twists.
  • the increased rigidity of the stationary mast and of the extension mast or of the further extension mast of the mast according to the invention further allows, in addition to the visually optimized design of the mast, to provide a reduced overlap between the stationary mast and the extension mast or between the extension mast and the further extension mast in the fully extended state that at a given height of the rail profiles of the stationary mast and the extension masts an increased lifting height of the mast can be achieved by the reduced overlaps.
  • FIG. 1 an inventive truck 1 is shown in a side view.
  • a mast 3 is arranged.
  • a load carrier 4 for example, a fork carriage, arranged raised and lowered.
  • a trained example as a fork with two forks load handling means 5 is arranged, which serves to handle loads.
  • the truck 1 is further provided with a driver's workplace 6 for an operator who has a driver's seat 7 in the illustrated embodiment.
  • FIG. 2 is a top view of the FIG. 1 shown, in which the visibility of a truck with a mast of the prior art are illustrated.
  • the prior art mast 3 has right and left mast columns, each formed by respective rail profiles.
  • the mast 3 shown is designed as a triplex mast with a trained as an outer mast mast 10, designed as a center mast extension mast 11 and designed as an inner mast 12 further extension mast 12.
  • the extension mast 11 is slidably disposed by means not shown supporting rollers in the stationary mast 10.
  • the further extension mast 12 is slidably disposed in the extension mast 11 by means not shown support rollers.
  • the load carrier 4 is slidably disposed in the further extension mast 12 by means not shown support rollers.
  • the stand mast 10, the extension mast 11 and the further extension mast 12 are each formed by two spaced vehicle transverse direction arranged rail profiles 10 a, 10 b, 11 a, 11 b, 12 a, 12 b, which are each connected by means not shown cross braces to a load-bearing structure.
  • the rail sections 10a, 10b of the stationary mast 10 have a C-shaped cross-section.
  • the rail sections 11a, 11b of the extension mast 11 and the rail sections 12a, 12b of the further extension mast 12 have an I-shaped cross-section.
  • the rail profiles 10 a, 10 b, 11 a, 11 b, 12 a, 12 b are arranged in the vehicle longitudinal direction symmetrically to a vehicle longitudinal center axis L.
  • the eyes 15 of an operator of the industrial truck 1 located in the driver's workplace 6 are shown.
  • the left mast column of the mast 3 formed by the rail profiles 10a, 11a, 12a results in a visual shadow S1, which is illustrated by the sight beams 20a, 20b.
  • the sight beam 20a is in this case on the load distant outer edge of the rail section 10a of the stationary mast 10 at.
  • the sight beam 20b abuts against the load-proximal inner side of the rail profile 12a of the further extension mast 12 formed by the inner mast.
  • the right mast column of the mast 3 formed by the rail profiles 10b, 11b, 12b produces a visual shadow S2, which is illustrated by the visible beams 21a, 21b.
  • the sight beam 21a is in this case on the load distant outer edge of the rail section 10b of the stationary mast 10 at.
  • the visible beam 21b abuts against the load-proximal inner side of the rail profile 12b of the further extension mast 12 formed by the inner mast.
  • the driver's workplace 6 is arranged eccentrically to a vehicle longitudinal center axis L, in the illustrated embodiment, moved to the left side of the vehicle. Due to the eccentric arrangement of the driver's workplace 6 results in a symmetrical arrangement of the rail profiles 10a, 10b, 11a, 11b, 12a, 12b to the vehicle longitudinal central axis L different large visual shadow S1, S2, wherein the visible shadow S2 of the right mast column greater than the visual shadow S1 of the left Mast tower is.
  • FIG. 2 Furthermore, an area D between the rail profiles 12a, 12b of the further extension mast 12 designed as an inner mast, which forms the view D through the mast 3, is illustrated.
  • FIG. 2 are further between the viewing beam 20a and the viewing beam 21a and the corresponding outer surface of the rail profile 10a and 10b of the Stand mastes 10 taut, triangular areas B1, B2 shown, which arise through the load distant outer edge of the rail sections 10a, 10b of the stationary mast and represent unused spaces and obstruct the lateral passing on the stationary mast 10.
  • FIGS. 3 to 5 an inventive, designed as Triplexhubgerüst mast 3 is shown, wherein in the FIG. 5 only the left mast column of the mast 3 is illustrated.
  • the rail profiles 10a, 10b of the stand mast 10 have an E-shaped cross section, in which an additional web 27 is formed on the rail profile 10a, 10b between a web close to the load 25 and a web 26 remote from the load.
  • the near-load web 25 and the additional web 27 form an inwardly facing profile chamber in which a arranged in the lower region of the extension mast 11 support roller 50 is arranged, by means of the extension mast 11 is guided in the stationary mast 10.
  • a load-oriented running surface 28 for the support roller 50 and at the additional web 27 a remote from the load bearing surface 29 is formed for the support roller 50.
  • the support roller 50 is arranged with a defined clearance between the opposite treads 28, 29 to ensure a free rotation.
  • the support roller 50 arranged on the extension mast 11 is supported either on the running surface 28 or the running surface 29.
  • the webs 25, 26, 27 of the E-shaped rail profile 10 a, 10 b of the stationary mast 10 are arranged perpendicular to the vehicle longitudinal direction L in the vehicle transverse direction of the truck 1.
  • the rail profile 10a, 10b of the stationary mast 10 is arranged with an outer surface 30 inclined to the vehicle longitudinal axis L of the truck 1.
  • the outer surface 30 of the left rail profile 10a along the viewing beam 20a of the operator located on the driver's workstation is arranged.
  • the rail profile 10a according to the invention uses the in the FIG. 2 clarified B1 partially or completely and caused by the beveled outer geometry no unused, obstructing rooms B1.
  • the right rail section 10 b is arranged symmetrically to the vehicle longitudinal center axis L.
  • off-center arrangement of the driver's workplace is the Outer surface 30 of the right rail section 10 in the direction of the viewing beam 21 a inclined and uses the in the FIG. 2 Part B2 shown in part, the opposite of the FIG. 2 is reduced.
  • the reduction of the area B2 leads, in particular in the case of an off-center arrangement of the driver's workplace 6, to significantly improved visibility through the mast.
  • an enlargement of the area moment of inertia of the rail profile 10a, 10b according to the invention is achieved with the rail profiles 10a, 10b according to the invention.
  • a further enlargement of the area moment of inertia of the rail profile 10a, 10b according to the invention is achieved by the area cross section of the additional web 27, on which the load-distant running surface 29 is formed.
  • the stand mast 10 formed by the rail profiles 10a, 10b according to the invention has an increased rigidity.
  • the improved rigidity can be used for a reduction of the rail profiles, so that a reduction of the sight shadows S1, S2 is achieved.
  • the rail sections 11a, 11b of the extension mast 11 designed as a center mast have an I-shaped cross section.
  • the rail section 11a, 11b of the extension mast 11 is nested and offset from the load-distant web 26 in the rail section 10a, 10b of the stand mast 10 is arranged.
  • a load-near web 31 of the extension mast 11 is in this case arranged adjacent to the load-near web 25 of the stationary mast 10 within the profiled chamber of the stationary mast 10 formed by the load-oriented web 25 and the additional web 27.
  • a lastferner web 32 of the rail section 11 a, 11 b of the extension mast 11 is arranged in a formed between the additional web 27 and the load distant web 26 recess 33 of the stand mast 10.
  • the webs 31, 32 of the rail profile 11a, 11b are arranged in the vehicle transverse direction.
  • the rail profiles 11a, 11b are arranged aligned in the vehicle longitudinal direction L, wherein the webs 31, 32 connecting central portion of the rail profile 11a, 11b is arranged in the vehicle longitudinal direction L.
  • the load-distant web 32 is reduced in width in the outward facing region with respect to the load-near web 31 and provided with a tapered outer surface 34, whereby a deep nesting of the rail profile 11 a, 11 b of the extension mast 11 in the provided with the oblique outer geometry Rail profile 10a, 10b of the stand mast 10 is achieved, which allows reduced visibility obstruction by a small width of the mast column.
  • the extension mast 11 On the rail section 11 a, 11 b of the extension mast 11 is an outwardly facing and an inwardly facing profile chamber formed by the load-near web 31 and the load distant web 32.
  • a load-oriented tread 35 and the load distant web 32 a remote from the running surface 36 for a arranged on the upper portion of the stand mast 10 support roller 51, by means of the extension mast 11 in the Stand mast 10 is guided.
  • the support roller 51 is arranged with a defined clearance between the opposite running surfaces 35, 36 in order to ensure a free rotation.
  • the support roller 51 arranged on the stationary mast 10 is supported either on the running surface 35 or the running surface 36.
  • the support roller 52 is arranged with a defined clearance between the opposite treads 37, 38, to ensure a free rotation.
  • the support roller 52 arranged on the further extension mast 12 is supported either on the running surface 37 or the running surface 38.
  • the rail section 12 a, 12 b of the further extension mast 12 is constructed identically with the rail section 11 a, 11 b of the extension mast 11.
  • the rail section 12a, 12b of the further extension mast 12 is nested in the rail section 11a, 11b of the extension mast 11 and arranged offset toward the load side, with a near-load web 39 of the further extension mast 12 with the load-near web 25 of the stand mast 10 and a lastferner Web 40 of the extension mast 12 with the additional web 27 of the stand mast 10 is aligned.
  • the webs 39, 40 of the rail profile 12a, 12b are arranged in the vehicle transverse direction.
  • the rail profiles 12a, 12b are arranged aligned in the vehicle longitudinal direction L, wherein a the webs 39, 40 connecting central portion of the rail profile 12a, 12b is arranged in the vehicle longitudinal direction L.
  • a load-oriented tread 42 is formed on the load-distant web 39 and a load-distant running surface 43 for a support roller 53, which is arranged in the upper of the extension mast 11 and by means of the further extension mast 12 in the extension mast 11 is guided.
  • the support roller 53 is arranged with a defined clearance between the opposite treads 42, 43, to ensure a free rotation.
  • the support roller 53 arranged on the extension mast 11 is supported on either the running surface 42 or the running surface 43.
  • a load-bearing tread 46 and on the load-distant web 40 a load-distant tread 47 is formed for arranged on the load carrier 4 support rollers 54 on the load-near web 39, by means of the load carrier is guided in the further extension mast 12.
  • the support rollers 54 are also arranged with a defined clearance between the opposite treads 46, 47, to ensure a free rotation.
  • the support rollers 54 arranged on the load carrier 4 are supported on either the running surface 46 or the running surface 47.
  • the near-load web 39 is provided with a beveled inner surface 45 in the inwardly facing region, whereby an adaptation to the sight beams 21a, 21b can be achieved.
  • the identically constructed rail sections 11a, 11b, 12a, 12b of the extension mast 11 and the further extension mast 12 are provided on the load-distant web 32 and 40 with an integrally formed reinforcing rib 48 which extends to the load distant side.
  • the reinforcing rib 48 is disposed in the inwardly facing region of the rail profiles 11a, 11b, 12a, 12b. With the reinforcing rib 48 is determined by the corresponding area cross-section of the Reinforcing rib 48 achieved an increase in the area moment of inertia of the rail profile 11a, 11b, 12a, 12b. Due to the increased area moments of inertia, the extension mast 11 formed by the rail profiles 11a, 11b and the further extension mast 12 formed by the rail profiles 12a, 12b have increased rigidity.
  • the mast 10 according to the invention has by the inventive rail profiles 10a, 10b of the stationary mast 10 with the additional webs 27 an increased rigidity.
  • the rail sections 11 a, 11 b, 12 a, 12 b of the extension mast 11 and the further extension mast 12 have through the additional reinforcing ribs 48 increased rigidity.
  • the increased rigidity of the stationary mast 10 and the extension mast 11, 12 makes it possible to provide a reduced overlap in the extended state, so that at an existing height of the rail profiles an increased lifting height of the mast 3 can be achieved.
  • the improved rigidity of the rail profiles according to the invention makes it possible to reduce the rail profiles with a stiffness that remains constant in comparison with a prior art mast, so that improved transparency D and reduced visual shadows S1, S2 can be achieved.
  • the improved stiffness of the rail profiles can be used to increase rigidity and simultaneously reduced stiffness compared to a prior art frame Visual obstruction on the load carrier to achieve with the load-carrying means.
  • the inclined arrangement of the outer surfaces 30 of the rail sections 10a, 10b of the stationary mast 10 leads to a further improvement of the visibility and reduction of visual obstructions, in particular an improved lateral passing on the mast. Due to the increased rigidity, the sight-optimized mast of the invention has reduced deflections and reduced torsion at a raised load, whereby the load handling is simplified.
  • the distance of the treads 28, 29 at the distance of the treads in the profile chambers of the identical track profiles 11 a, 11 b, 12 a, 12 b are aligned, so that in Diameter identical support rollers 50 to 54 in the mast 3 can be used without additional sliding elements.
  • the invention is not limited to the design of the mast 3 as a triplex mast.
  • the mast according to the invention as a duplex mast with one of the rail sections 10a, 10b formed stand mast 10 and the rail profiles 11a, 11b formed extension mast 11 are formed, wherein at the treads 37, 38 of the extension mast 11 of the load carrier 4 with the corresponding Support rollers 54 are guided.
  • An inventive mast 3 can in this case be provided with a free lift for a load carrier 4 or without a free lift for the load carrier 4.

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  • 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)
  • Handcart (AREA)

Claims (11)

  1. Cadre de levage (3) d'un chariot de manutention avec un mât extérieur réalisé sous forme de mât fixe (10) et au moins un mât extensible réalisé sous forme de mât intérieur ou de mât central (11; 12), dans lequel le mât fixe (10) et le mât extensible (11; 12) est formé par deux rails profilés verticaux respectivement espacés latéralement (10a, 10b; 11a, 11b; 12a, 12b), caractérisé en ce qu'au moins un rouleau d'appui (50) est disposé dans la région inférieure du mât extensible (11), et guide le mât extensible (11) dans le mât fixe (10) et est en relation avec les faces de roulement opposées (28, 29) formées sur les rails profilés (10a; 10b) du mât fixe (10), dans lequel le rail profilé (10a, 10b) du mât fixe (10) présente une section transversale en forme de E, dans lequel une nervure supplémentaire (27) est formée sur le rail profilé (10a, 10b) du mât fixe (10) entre une nervure (25) proche de la charge et une nervure (26) du rail profilé (10a, 10b) éloignée de la charge, dans lequel la nervure proche de la charge (25) et la nervure supplémentaire (27) du rail profilé (10a, 10b) du mât fixe (10) forment une chambre profilée tournée vers l'intérieur, qui contient le rouleau d'appui (50) disposé sur le mât extensible (11) et une face de roulement (28) proche de la charge pour le rouleau d'appui (50) disposé sur le mât extensible (11) est formée sur la nervure proche de la charge (25) du rail profilé (10a, 10b) du mât fixe (10) et une face de roulement (29) éloignée de la charge pour le rouleau d'appui (50) disposé sur le mât extensible (11) est formée sur la nervure supplémentaire (27) du rail profilé (10a, 10b) du mât fixe (10).
  2. Cadre de levage selon la revendication 1, caractérisé en ce que les nervures (25, 26, 27) du rail profilé (10a, 10b) du mât fixe (10) sont disposées dans la direction transversale du véhicule du chariot de manutention (1) et le rail profilé (10a, 10b) du mât fixe (10) est disposé avec une face extérieure (30) inclinée par rapport à un axe longitudinal (L) du véhicule du chariot de manutention (1) dans la direction d'une ligne de vision (20a, 20b) d'un conducteur se trouvant au poste de conduite (6).
  3. Cadre de levage selon la revendication 1 ou 2, caractérisé en ce que le rail profilé (11a, 11b; 12a, 12b) du mât extensible (11) et/ou d'un autre mât extensible (12) présente une section transversale en forme de I, dans lequel le rail profilé (11a, 11b; 12a, 12b) du mât extensible (11) et/ou de l'autre mât extensible (12) est disposé en position orientée dans la direction longitudinale (L) du véhicule et est muni de nervures (31, 32, 39, 40) disposées dans la direction transversale du véhicule.
  4. Cadre de levage selon la revendication 3, caractérisé en ce que le rail profilé (11a, 11b) du mât extensible (11) est disposé de façon imbriquée et déplacée vers la nervure éloignée de la charge (26) dans le rail profilé (10a, 10b) du mât fixe (10), dans lequel une nervure proche de la charge (31) du mât extensible (11) est disposée à proximité de la nervure proche de la charge (25) du mât fixe (10) dans la chambre profilée du mât fixe (10) et une nervure éloignée de la charge (32) du mât extensible (11) est disposée dans un évidement (33) du mât fixe (10) formé entre la nervure supplémentaire (27) et la nervure éloignée de la charge (26).
  5. Cadre de levage selon la revendication 3 ou 4, caractérisé en ce qu'une chambre profilée tournée vers l'extérieur et une chambre profilée tournée vers l'intérieur sont formées sur le mât extensible (11) par la nervure proche de la charge (31) et la nervure éloignée de la charge (32), dans lequel, à la chambre profilée tournée vers l'extérieur, une face de roulement proche de la charge (35) est formée sur la nervure proche de la charge (31) pour un rouleau d'appui (51) disposé sur le mât fixe (10) pour le guidage du mât extensible (11) et une face de roulement éloignée de la charge (36) pour le rouleau d'appui (51) est formée sur la nervure éloignée de la charge (32).
  6. Cadre de levage selon la revendication 5, caractérisé en ce que, à la chambre profilée du mât extensible (11) tournée vers l'intérieur, une face de roulement proche de la charge (37) est formée sur la nervure proche de la charge (31) pour un rouleau d'appui (52; 54) disposé sur un autre mât extensible (12) ou sur un support de charge (4), en particulier un porte-fourche, pour le guidage de l'autre mât extensible (12) ou du support de charge (4) et une face de roulement éloignée de la charge (38) pour le rouleau d'appui (52; 54) est formée sur la nervure éloignée de la charge (32).
  7. Cadre de levage selon l'une quelconque des revendications 3 à 6, caractérisé en ce que le rail profilé (12a, 12b) de l'autre mât extensible (12) est disposé de façon imbriquée dans le rail profilé (11a, 11b) du mât extensible (11), dans lequel une nervure proche de la charge (39) de l'autre mât extensible (12) est en alignement avec la nervure proche de la charge (25) du mât fixe (10) et une nervure éloignée de la charge (40) du mât extensible (12) est en alignement avec la nervure supplémentaire (27) du mât fixe (10).
  8. Cadre de levage selon la revendication 7, caractérisé en ce qu'une chambre profilée tournée vers l'extérieur et une chambre profilée tournée vers l'intérieur sont formées sur l'autre mât extensible (12) par la nervure proche de la charge (39) et la nervure éloignée de la charge (40), dans lequel, à la chambre profilée tournée vers l'extérieur, une face de roulement proche de la charge (42) est formée sur la nervure proche de la charge (39) pour un rouleau d'appui (53) disposé sur le mât extensible (11) pour le guidage de l'autre mât extensible (12) et une face de roulement éloignée de la charge (43) pour le rouleau d'appui (53) est formée sur la nervure éloignée de la charge (40).
  9. Cadre de levage selon la revendication 8, caractérisé en ce que, à la chambre profilée de l'autre mât extensible (12) tournée vers l'intérieur, une face de roulement proche de la charge (46) est formée sur la nervure proche de la charge (39) pour un rouleau d'appui (54) disposé sur un support de charge (4), en particulier un porte-fourche, pour le guidage du support de charge (4) et une face de roulement éloignée de la charge (47) pour le rouleau d'appui (54) est formée sur la nervure éloignée de la charge (40).
  10. Cadre de levage selon l'une quelconque des revendications 1 à 9, caractérisé en ce que la distance des faces de roulement (28, 29) dans la chambre profilée du mât fixe (10) correspond essentiellement à la distance des faces de roulement (35, 36; 37, 38; 42, 43; 46, 47) dans les chambres profilées du mât extensible (11) et/ou de l'autre mât extensible (12), de telle manière que l'on puisse utiliser des rouleaux d'appui de même taille (50, 51, 52, 53, 54) pour le guidage du mât extensible (11) et/ou de l'autre mât extensible (12).
  11. Cadre de levage selon l'une quelconque des revendications 1 à 10, caractérisé en ce que le rail profilé (11a, 11b; 12a, 12b) du mât extensible (11) et/ou de l'autre mât extensible (12) est muni, sur la nervure éloignée de la charge (32; 40), d'une nervure de renforcement (48).
EP13153692.2A 2012-02-16 2013-02-01 Cadre de levage d'un chariot de manutention Not-in-force EP2628705B9 (fr)

Applications Claiming Priority (1)

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DE201210101236 DE102012101236A1 (de) 2012-02-16 2012-02-16 Hubgerüst eines Flurförderzeugs

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EP2628705A2 EP2628705A2 (fr) 2013-08-21
EP2628705A3 EP2628705A3 (fr) 2014-04-23
EP2628705B1 true EP2628705B1 (fr) 2016-04-20
EP2628705B9 EP2628705B9 (fr) 2016-06-22

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Publication number Priority date Publication date Assignee Title
US4506764A (en) * 1981-10-22 1985-03-26 Firma Jungheinrich Unternehmensverwaltung Kg Lift truck
DE4316647C2 (de) 1993-05-18 2001-05-31 Linde Ag Hubgerüst mit zwei relativ zueinander längsbeweglichen Bauteilen und dazwischen angeordneten Lagerstellen
US7096999B2 (en) * 2003-08-05 2006-08-29 The Raymond Corporation Mast construction for a lift truck
DE102005032390A1 (de) 2005-07-12 2007-01-18 Linde Ag Mehrfach-Hubgerüst mit Verriegelungsmitteln zur Sicherung der Bewegungsreihenfolge der ausfahrbaren Hubmasten
DE202008006141U1 (de) * 2008-05-05 2008-07-17 Jungheinrich Aktiengesellschaft Hubgerüst für ein Flurförderzeug
CN201567186U (zh) * 2009-12-10 2010-09-01 合肥搬易通科技发展有限公司 一种带中间导轨结构的叉车门架

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EP2628705B9 (fr) 2016-06-22
CN103253614B (zh) 2017-08-22
DE102012101236A1 (de) 2013-08-22
EP2628705A3 (fr) 2014-04-23
CN103253614A (zh) 2013-08-21
EP2628705A2 (fr) 2013-08-21

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