FR2420504A1 - LIFTING STRUCTURE FOR LIFTING EQUIPMENT - Google Patents

LIFTING STRUCTURE FOR LIFTING EQUIPMENT

Info

Publication number
FR2420504A1
FR2420504A1 FR7906894A FR7906894A FR2420504A1 FR 2420504 A1 FR2420504 A1 FR 2420504A1 FR 7906894 A FR7906894 A FR 7906894A FR 7906894 A FR7906894 A FR 7906894A FR 2420504 A1 FR2420504 A1 FR 2420504A1
Authority
FR
France
Prior art keywords
lifting
fork
lifting device
mast
stop
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.)
Withdrawn
Application number
FR7906894A
Other languages
French (fr)
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 Unternehmensverwaltung KG
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 Unternehmensverwaltung KG filed Critical Jungheinrich Unternehmensverwaltung KG
Publication of FR2420504A1 publication Critical patent/FR2420504A1/en
Withdrawn legal-status Critical Current

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

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)

Abstract

Structure élévatrice pour appareils de levage qui comprend un dispositif de levage, un élément de mât fixe et au moins un élément de mât susceptible de coulisser vers le haut et le long duquel est guidée une fourche de levage qui par l'intermédiaire d'un mécanisme à chaîne peut effectuer d'abord une course de dégagement spéciale. Le dispositif de levage comprend trois éléments dont le premier permet d'effectuer la course de dégagement spéciale de la fourche, et entre deux parties de charpente mobiles l'une par rapport à l'autre se trouve une butée dont l'élément se rapproche d'abord par coulissement, un second élément du dispositif de levage étant ensuite amené à coulisser conjointement avec le premier jusqu'à ce que la butée soit atteinte, après quoi se réalise l'allongement du mât. L'invention est applicable notamment à des chariots élévateurs.Lifting structure for lifting devices which comprises a lifting device, a fixed mast element and at least one mast element capable of sliding upwards and along which a lifting fork is guided which by means of a mechanism chain can first perform a special clearance stroke. The lifting device comprises three elements, the first of which makes it possible to carry out the special clearance stroke of the fork, and between two frame parts movable with respect to each other is a stop whose element approaches the fork. 'first by sliding, a second element of the lifting device then being made to slide together with the first until the stop is reached, after which the mast is extended. The invention is particularly applicable to forklifts.

FR7906894A 1978-03-20 1979-03-19 LIFTING STRUCTURE FOR LIFTING EQUIPMENT Withdrawn FR2420504A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782812102 DE2812102A1 (en) 1978-03-20 1978-03-20 LIFTING FRAME FOR LIFTING DEVICES

Publications (1)

Publication Number Publication Date
FR2420504A1 true FR2420504A1 (en) 1979-10-19

Family

ID=6034954

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906894A Withdrawn FR2420504A1 (en) 1978-03-20 1979-03-19 LIFTING STRUCTURE FOR LIFTING EQUIPMENT

Country Status (3)

Country Link
DE (1) DE2812102A1 (en)
FR (1) FR2420504A1 (en)
GB (1) GB2016409A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4458785A (en) * 1982-10-25 1984-07-10 Bushnell Jr Sherman W Lift
US5326217A (en) * 1990-09-24 1994-07-05 Clark Material Handling Company Lift truck with negative drop upright
GB9022002D0 (en) * 1990-10-10 1990-11-21 Fielden Engineers Limited Improvements in or relating to fork lift trucks
US5328321A (en) * 1991-09-05 1994-07-12 Moffett Research And Development Limited Multi-stage mast for a forklift truck
GB2387376B (en) * 2002-04-10 2005-12-21 Lansing Linde Ltd Industrial trucks having lifting masts
CN105952490B (en) * 2016-06-28 2018-02-06 淮南矿业(集团)有限责任公司 Surge driving and the underground hydraulic support frame package system using the driving of surging

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB722766A (en) * 1951-10-04 1955-01-26 Miag Fahrzeugbau Ges Mit Besch Improvements in and relating to lifting devices
DE1041864B (en) * 1957-06-28 1958-10-23 Friedrich Jungheinrich Dr Ing Lifting device for truck with free lift of the load carrier
US3077951A (en) * 1958-09-22 1963-02-19 Knickerbocker Company Lift truck mast operation sequence mechanism
FR1513611A (en) * 1966-05-06 1968-02-16 Steinbock Gmbh Improvements to telescopic masts for forklifts
DE2008841A1 (en) * 1969-02-25 1970-10-01 K.K. Toyoda, Jidoshokki Seisakuhso, Kariya City, Aichi (Japan) Three-stage lifting arrangement for forklifts and the like
FR2057611A5 (en) * 1969-08-08 1971-05-21 Fiat Spa
US4008648A (en) * 1975-11-11 1977-02-22 Cascade Corporation Telescopic ram

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB722766A (en) * 1951-10-04 1955-01-26 Miag Fahrzeugbau Ges Mit Besch Improvements in and relating to lifting devices
DE1041864B (en) * 1957-06-28 1958-10-23 Friedrich Jungheinrich Dr Ing Lifting device for truck with free lift of the load carrier
US3077951A (en) * 1958-09-22 1963-02-19 Knickerbocker Company Lift truck mast operation sequence mechanism
FR1513611A (en) * 1966-05-06 1968-02-16 Steinbock Gmbh Improvements to telescopic masts for forklifts
DE2008841A1 (en) * 1969-02-25 1970-10-01 K.K. Toyoda, Jidoshokki Seisakuhso, Kariya City, Aichi (Japan) Three-stage lifting arrangement for forklifts and the like
FR2057611A5 (en) * 1969-08-08 1971-05-21 Fiat Spa
US4008648A (en) * 1975-11-11 1977-02-22 Cascade Corporation Telescopic ram

Also Published As

Publication number Publication date
DE2812102A1 (en) 1979-09-27
GB2016409A (en) 1979-09-26

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Legal Events

Date Code Title Description
ST Notification of lapse