EP1512662A3 - Damping arrangement for the lifting mast of a lift truck - Google Patents

Damping arrangement for the lifting mast of a lift truck Download PDF

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Publication number
EP1512662A3
EP1512662A3 EP04018802A EP04018802A EP1512662A3 EP 1512662 A3 EP1512662 A3 EP 1512662A3 EP 04018802 A EP04018802 A EP 04018802A EP 04018802 A EP04018802 A EP 04018802A EP 1512662 A3 EP1512662 A3 EP 1512662A3
Authority
EP
European Patent Office
Prior art keywords
mast
surface portion
horizontal surface
damping
masts
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)
French (fr)
Other versions
EP1512662B1 (en
EP1512662A2 (en
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/en
Publication of EP1512662A3 publication Critical patent/EP1512662A3/en
Application granted granted Critical
Publication of EP1512662B1 publication Critical patent/EP1512662B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, 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
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices 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
    • B66F9/075Constructional features or details
    • B66F9/08Masts; Guides; Chains

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)

Abstract

Dämpfungsanordnung für das Hubgerüst eines Flurförderzeugs mit einem ersten Mast (10) und mindestens einem im ersten Mast (10) teleskopisch angeordneten zweiten Mast (30), wobei die Dämpfung beim Einfahren des zweiten Mastes (30) in den ersten Mast (10) wirksam wird, wobei an beiden Masten (10,30) horizontale Flächenabschnitte vorgesehen sind, die an Querverbindungselementen der Masten gebildet sind und die nahe übereinander liegen, wenn die Masten (10,30) in einer hinteren Endstellung ineinander gefahren sind, an einem ersten horizontalen Flächenabschnitt ein mindestens einteiliges Dämpfungselement (50) aus einem steifen Elastomer befestigt ist, das eine Auflageseite aufweist, die am zugehörigen ersten Flächenabschnitt anliegt und eine der Auflageseite gegenüberliegende zweite Seite aufweist, mit der der zweite horizontale Flächenabschnitt zusammenwirkt und die zweite Seite so geformt ist, daß die Größe der verformten Fläche bzw. des verformten Volumens des Dämpfungselements (50) mit zunehmenden Eingriff des zweiten horizontalen Flächenabschnitts größer wird.

Figure imgaf001
Damping arrangement for the mast of a truck with a first mast (10) and at least one in the first mast (10) telescopically arranged second mast (30), wherein the damping during retraction of the second mast (30) in the first mast (10) is effective , wherein on both masts (10,30) horizontal surface portions are provided, which are formed on cross-connecting elements of the masts and which are close to each other when the masts (10,30) are driven into each other in a rear end position, on a first horizontal surface portion at least one piece damping element (50) of rigid elastomer having a support face abutting the associated first surface portion and having a second side opposite the support side, with which the second horizontal surface portion cooperates and the second side is shaped such that the Size of the deformed surface or the deformed volume of the damping elements (50) becomes larger with increasing engagement of the second horizontal surface portion.
Figure imgaf001

EP20040018802 2003-09-05 2004-08-07 Damping arrangement for the lifting mast of a lift truck Expired - Lifetime EP1512662B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10340957 2003-09-05
DE2003140957 DE10340957A1 (en) 2003-09-05 2003-09-05 Damping arrangement for the mast of a truck

Publications (3)

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

Family

ID=34129660

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040018802 Expired - Lifetime EP1512662B1 (en) 2003-09-05 2004-08-07 Damping arrangement for the lifting mast of a lift truck

Country Status (2)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008013351B4 (en) * 2008-03-10 2022-03-03 Jungheinrich Aktiengesellschaft Lifting frame for an industrial truck
US9796570B2 (en) 2015-03-03 2017-10-24 Jungheinrich Aktiengesellschaft Lift arrangement of a lift truck with mast damping devices and lift truck
EP3315455B1 (en) * 2016-10-28 2019-11-27 Hyster-Yale Group, Inc. Mast support device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1556601A1 (en) * 1967-08-01 1970-03-05 Linde Ag A lift truck with an extendable mast
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 (en) * 1998-01-21 1999-07-28 Still Wagner GmbH & Co. KG Lift truck with dampening device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4214788C2 (en) * 1992-05-04 1995-02-09 Jungheinrich Ag Stand space for a standing driver of an industrial truck
DE4411470B4 (en) * 1994-04-01 2004-09-02 Linde Ag Industrial truck with a platform

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1556601A1 (en) * 1967-08-01 1970-03-05 Linde Ag A lift truck with an extendable mast
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 (en) * 1998-01-21 1999-07-28 Still Wagner GmbH & Co. KG Lift truck with dampening device

Also Published As

Publication number Publication date
EP1512662B1 (en) 2007-10-03
DE10340957A1 (en) 2005-04-07
EP1512662A2 (en) 2005-03-09
DE502004005115D1 (en) 2007-11-15

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