EP1512662A2 - Arrangement d'amortisseur pour le mât de levage d'un chariot élévateur - Google Patents

Arrangement d'amortisseur pour le mât de levage d'un chariot élévateur Download PDF

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Publication number
EP1512662A2
EP1512662A2 EP04018802A EP04018802A EP1512662A2 EP 1512662 A2 EP1512662 A2 EP 1512662A2 EP 04018802 A EP04018802 A EP 04018802A EP 04018802 A EP04018802 A EP 04018802A EP 1512662 A2 EP1512662 A2 EP 1512662A2
Authority
EP
European Patent Office
Prior art keywords
mast
damping
damping element
arrangement according
damping arrangement
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
EP04018802A
Other languages
German (de)
English (en)
Other versions
EP1512662A3 (fr
EP1512662B1 (fr
Inventor
Arno Vogt
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 EP1512662A2 publication Critical patent/EP1512662A2/fr
Publication of EP1512662A3 publication Critical patent/EP1512662A3/fr
Application granted granted Critical
Publication of EP1512662B1 publication Critical patent/EP1512662B1/fr
Expired - Fee Related 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 damping arrangement for the mast of a Truck according to the preamble of claim 1.
  • Masts for lifting loads to greater heights have a telescopic Mast on, with a so-called stationary mast, which is fixed to the vehicle attached and at least one mast shot, which is guided within the stand mast.
  • One Load bearing means e.g. a forklift, is guided at the mast shot, and the so-called Free lift cylinder for actuating the load bearing means is supported on the mast shot.
  • mast cylinder to the Mastschuß extend or retract.
  • a Is damping element e.g. is made of a rigid polymeric material and a spring arrangement, with which the damping element in the end position of the movable Mastes interacts.
  • the invention is based on the object, a damping arrangement for the mast to create a truck that is very easy to manufacture and install can be and that has only a minimal noise.
  • At least one one-piece damping element is made of stiff, provided elastomeric material, preferably made of polyurethane high Shore hardness.
  • the damping element is on a horizontal surface portion of a cross-connection part a mast attached, and the other mast has one aligned horizontal surface portion on a cross-connection part, wherein the surface sections are superimposed.
  • the second surface section works with the side of the damping element opposite the first surface section together. This side of the damping element is shaped so that the Size of the deformed surface or the deformed volume with increasing engagement of the second horizontal surface portion becomes larger.
  • the damping element is a certain shape of the surface required, with the flat counterface of the other mastes interacts. Therefore, this side of the damping element curved according to a further embodiment of the invention to the outside or spherical be.
  • the crown is along provided two mutually perpendicular axes. This will achieve that the first engagement with the damping element is almost point-like and only becomes progressively larger in area, until the attacking on the damping element Surface substantially touches the total area of the damping element and optionally further deformed.
  • the damping element according to the invention consists of solid material, and according to a further embodiment of the invention, the support side of the Damping element plan.
  • the described damping is not only soft and quiet, but the life of the damping element is relatively high, as always a full edition is guaranteed.
  • Another advantage of the invention Damping element is that even if not exactly horizontal or parallel extending surface sections a sufficient damping is ensured. Due to errors and tolerances in the production, it can easily happen that the Parts of the mast, on which the surface portions are formed, not sufficient parallel to each other.
  • the damping element according to the invention can in various ways be attached. So it may be z. B. be attached by gluing. So that however, it can be replaced in case of wear or destruction advantageous if it is fixed by means of a screw fastening, wherein at a Embodiment of the invention, the heads of the mounting screws in the Screw holes are sunk.
  • the damping element according to the invention can be attached to different locations be, for example, in the lower or upper part of a mast.
  • a first mast 10 can be seen, which is not as a stationary mast shown truck is attached. He has two columns 12, 14, the on lower end with a lower cross member 16 and at the upper end an upper one Traverse 18 are interconnected.
  • the upper crossbar is U-shaped with a vertical web portion 20 which is offset from the columns 12, 14 to one side lies. Between the columns there are more traverses 22 to 26, on the but should not be discussed further.
  • a second mast 30 has columns 32, 34 which, on the inside of the columns 12, 14 come to rest, with guide rollers 34, 36 with the facing each other vertical guideways of the columns 12, 14 cooperate.
  • the columns 32, 34 are connected to each other via a lower cross member 36 and middle cross members 38, 40, 41.
  • In the upper area is another Traverse 42, opposite the columns 32, 34 is arranged offset to one side.
  • the Traverse 42 is plate-like.
  • the cross member 20 has a horizontal step 44, which is narrower to the sides and one in the middle another area with a horizontal upward facing surface, with Screw holes 46.
  • a Damping element 50 indicated that in the plan oblong rectangular and flat is formed and in the end regions has two screw holes 52 for receiving a fastening screw 54.
  • the Damper 50 mounted on the upper horizontal surface 56 of the step 44 be, with the head of the fastening screw 54 recessed in the screw holes 52 lies.
  • the underside of the damping element 50 is flat, so that a rich system is given to the horizontal surface 56.
  • the top of the Damping element 50 is crowned along both axes of the damping element 50 or convexly arched. This is clearer from the Fign. 3 and 4.
  • the inner or second mast 30 lowers in the outer mast 10 and reaches largely its end position, comes the bottom of the crossbar 42, which is in this range having a horizontal surface portion, with the damping element in Investment.
  • the superimposed surface portions of the Trusses 20, 42 in the rear end position of the mast 30 close together.
  • the described effect of the damping element 50 is initially approximately point contact, but rapidly becomes a surface contact, which becomes increasingly larger the farther the mast 30 lowers.
  • the described force intervention on Damping element is initially relatively soft and causes no noise.
  • the relatively soft damping also causes a gentle Mast construction and the damping element, which is loaded over the entire surface and Therefore, even with tolerances in the extension of the trusses 20, 42 the effect does not lose.
  • damping element as shown in the drawings, is merely exemplary, it is conceivable, one or more damping elements in to arrange the lower area of the masts. It is known, two or more moving Telescoping masts in a stand mast. However, it turns out that about the inner mast does not have to be damped separately from the neighboring mast because such damping usually takes place via the lifting device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Vibration Dampers (AREA)
  • Forklifts And Lifting Vehicles (AREA)
EP20040018802 2003-09-05 2004-08-07 Arrangement d'amortisseur pour le mât de levage d'un chariot élévateur Expired - Fee Related EP1512662B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003140957 DE10340957A1 (de) 2003-09-05 2003-09-05 Dämpfungsanordnung für das Hubgerüst eines Flurförderzeugs
DE10340957 2003-09-05

Publications (3)

Publication Number Publication Date
EP1512662A2 true EP1512662A2 (fr) 2005-03-09
EP1512662A3 EP1512662A3 (fr) 2006-03-22
EP1512662B1 EP1512662B1 (fr) 2007-10-03

Family

ID=34129660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040018802 Expired - Fee Related EP1512662B1 (fr) 2003-09-05 2004-08-07 Arrangement d'amortisseur pour le mât de levage d'un chariot élévateur

Country Status (2)

Country Link
EP (1) EP1512662B1 (fr)
DE (2) DE10340957A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013351A1 (de) * 2008-03-10 2009-09-17 Jungheinrich Ag Hubgerüst für ein Flurförderzeug
EP3315455A1 (fr) * 2016-10-28 2018-05-02 Hyster-Yale Group, Inc. Dispositif de support de mât

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9796570B2 (en) 2015-03-03 2017-10-24 Jungheinrich Aktiengesellschaft Lift arrangement of a lift truck with mast damping devices and lift truck

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1556601A1 (de) * 1967-08-01 1970-03-05 Linde Ag Hublader mit einem ausfahrbaren Hubmast
GB2192174A (en) * 1986-07-03 1988-01-06 Jungheinrich Kg Lifting frame for lifting trucks
US5657834A (en) * 1994-08-30 1997-08-19 Crown Equipment Corporation Mast staging cushion apparatus
EP0931758A1 (fr) * 1998-01-21 1999-07-28 Still Wagner GmbH & Co. KG Chariot élévateur avec un dispositif d'amortissement des chocs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214788C2 (de) * 1992-05-04 1995-02-09 Jungheinrich Ag Standfläche für einen stehenden Fahrer eines Flurförderzeugs
DE4411470B4 (de) * 1994-04-01 2004-09-02 Linde Ag Flurförderzeug mit einer Plattform

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1556601A1 (de) * 1967-08-01 1970-03-05 Linde Ag Hublader mit einem ausfahrbaren Hubmast
GB2192174A (en) * 1986-07-03 1988-01-06 Jungheinrich Kg Lifting frame for lifting trucks
US5657834A (en) * 1994-08-30 1997-08-19 Crown Equipment Corporation Mast staging cushion apparatus
EP0931758A1 (fr) * 1998-01-21 1999-07-28 Still Wagner GmbH & Co. KG Chariot élévateur avec un dispositif d'amortissement des chocs

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013351A1 (de) * 2008-03-10 2009-09-17 Jungheinrich Ag Hubgerüst für ein Flurförderzeug
DE102008013351B4 (de) 2008-03-10 2022-03-03 Jungheinrich Aktiengesellschaft Hubgerüst für ein Flurförderzeug
EP3315455A1 (fr) * 2016-10-28 2018-05-02 Hyster-Yale Group, Inc. Dispositif de support de mât
US10562746B2 (en) 2016-10-28 2020-02-18 Hyster-Yale Group, Inc. Mast support device

Also Published As

Publication number Publication date
EP1512662A3 (fr) 2006-03-22
DE502004005115D1 (de) 2007-11-15
EP1512662B1 (fr) 2007-10-03
DE10340957A1 (de) 2005-04-07

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