US3567055A - Arrangement of a movable fork of a stacking crane or the like - Google Patents

Arrangement of a movable fork of a stacking crane or the like Download PDF

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Publication number
US3567055A
US3567055A US767109A US3567055DA US3567055A US 3567055 A US3567055 A US 3567055A US 767109 A US767109 A US 767109A US 3567055D A US3567055D A US 3567055DA US 3567055 A US3567055 A US 3567055A
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US
United States
Prior art keywords
fork
carrier
load supporting
head
supporting surface
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.)
Expired - Lifetime
Application number
US767109A
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English (en)
Inventor
Serge Preto
Rasmus Kjolen
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.)
Sverre Munck AS
Original Assignee
Sverre Munck AS
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 Sverre Munck AS filed Critical Sverre Munck AS
Application granted granted Critical
Publication of US3567055A publication Critical patent/US3567055A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B66F9/07—Floor-to-roof stacking devices, e.g. "stacker cranes", "retrievers"
    • 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
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/14—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements
    • 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
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/16—Platforms; Forks; Other load supporting or gripping members inclinable relative to mast

Definitions

  • the present invention relates to an arrangement of a movable fork for stacking cranes or the like for the displacement of loading pallets.
  • the fork Whencranes having a movable loading fork are used in storing rooms or the like, the fork has to be made movable relative to the crane in. order to reduce the passages between the pallet shelves to a minimum. This movement should be so extensive as to permit the pallet to be pulled out of the shelves.
  • the fork In known embodiments of this kind of movable fork for stacking cranes, the fork has been mounted on a horizontally movable slide operated by a screw. Due to the extension of the slide and mounting of the driving means the movability of the fork is, however, so restricted that the pallet has to be taken out of the shelves in a two-step movement. This makes the operation time consuming and complicated.
  • the object of the present invention is thus to accomplish a suspension arrangement of a fork for displacing loading pallets, which suspension arrangement renders it possible to pull the pallet from a shelf in one single and quick operation.
  • the new suspension arrangement of the fork on the fork carrier is suggested to be designed in such a way that the fork can operate at the desired one of the two sides of the fork carrier.
  • an arrangement characterized in that the. rear end of the fork is furnished with a head or the like providing a pivot bearing for one end of an arm parallelogram, the other end of which is pivoted to an element, that by suitable guiding means can be displaced relative to the fork carrier, control and power means being arranged to swing the head of the fork in towards and pastthe fork carrier or out intoapallet gripping position respectively as the element is displaced, within its guiding means.
  • the fork can be swung 90 on an axis through its head in order to be operable on the desired side of the fork carrier.
  • the mentioned control and power means may preferably consist of an arm, one end of which is pivoted to the said arm parallelogram 'and the other end of which is power driven and pivoted to the fork carrier.
  • FIG. 1 shows a side elevation of the arrangement
  • FIGJZ shows a front elevation taken in the direction of the arrows a in FIG. 1.
  • the fork carrier 1 constituting the hoistable part of the crane, runs in guides on the crane posts in a manner known per se.
  • the pallet fork comprises teeth 2, 3 with a mutual angle of 90 and is mounted on the fork head 4 so as to permit the teeth to be optionally swung 90. In this way the fork is operable on the desired one of the two sides of the fork carrier 1
  • the fork head 4 is suspended on the parallel and equally long arms 5 and 6. The opposite ends of these arms 'are head swings between the two said positions.
  • this power arm at one end is pivoted to the center of the arm 6, while its other end is power driven and secured to the fork carrier. Power istransmitted from a motor 9 by a chain drive and gear transmissions.
  • the fork 2, 3 by its suspension on the fork carrier 1 obtains a arallel displacable support which at the same time secures t e necessary lifting movement for the dlS- placement of a loading pallet e.g. from a storing shelfto a position ready for transport and vice versa.
  • An apparatus for manipulating a load supporting fork of a stacking crane comprising, a fork carrier adapted to be lifted and lowered along guides in a crane post, vertically extending guide surfaces formed on said fork carrier, a guide element mounted on said fork carrier for vertical movement along said guide surfaces, a load supporting fork having a generally horizontal load supporting surface, a fork head connected to the fork, a parallelogram linkage comprising a pair of parallel links, each pivotally connected at one end to the guide element and at the other end to the fork' head, and a control means operative connected to the parallelogram linkage to control movement of the same, relative to the fork carrier, such that as the guide element moves vertically along said guide surfaces, thefork head moves in a horizontal path in a direction transverse to the said pivot axis between two positions located on opposite sides of the said pivot connection of the parallelogram linkage to the guide element, while retaining the load supporting surface generally horizontal, whereby inone of said positions, the fork extends outwardly from the for
  • control means comprises a control arm pivotally connected to the parallelogram linkage and to the fork carrier, and wherein said power means is connected to the said control arm to turn the same about its connection to the fork carrier to swing the parallelogram linkage, and hence the fork head between the two said positions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Warehouses Or Storage Devices (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Forklifts And Lifting Vehicles (AREA)
US767109A 1967-10-12 1968-10-14 Arrangement of a movable fork of a stacking crane or the like Expired - Lifetime US3567055A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO170111A NO120309B (enrdf_load_stackoverflow) 1967-10-12 1967-10-12

Publications (1)

Publication Number Publication Date
US3567055A true US3567055A (en) 1971-03-02

Family

ID=19910257

Family Applications (1)

Application Number Title Priority Date Filing Date
US767109A Expired - Lifetime US3567055A (en) 1967-10-12 1968-10-14 Arrangement of a movable fork of a stacking crane or the like

Country Status (6)

Country Link
US (1) US3567055A (enrdf_load_stackoverflow)
DE (1) DE1802200A1 (enrdf_load_stackoverflow)
DK (1) DK116857B (enrdf_load_stackoverflow)
GB (1) GB1223168A (enrdf_load_stackoverflow)
NO (1) NO120309B (enrdf_load_stackoverflow)
SE (1) SE336208B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762588A (en) * 1970-10-05 1973-10-02 Clark Equipment Co Front and lateral loading mechanism
US3977542A (en) * 1973-07-26 1976-08-31 Stopa Stahlbau Gmbh & Co. Kommanditgesellschaft Fur Schweisstechnik Storage frames with deflection bar to pivot tines on a gantry
US4016987A (en) * 1974-05-31 1977-04-12 Stopa Stahlbau Gmbh & Co. Storage system
US4194864A (en) * 1976-12-27 1980-03-25 Mitsubishi Jukogyo Kabushiki Kaisha Three-dimensional automatic warehouse equipment
US4636131A (en) * 1985-04-03 1987-01-13 Long Reach Manufacturing Co. Side shifter and narrow aisle attachment for a lift truck
WO2001042111A1 (en) * 1999-12-08 2001-06-14 Protosight Inc. Automated storage and retrieval system
CN114572900A (zh) * 2022-03-21 2022-06-03 中研技术有限公司 一种曲柄摆杆的堆垛机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN165584B (enrdf_load_stackoverflow) * 1985-09-10 1989-11-25 Truetzschler & Co
DE20008073U1 (de) * 2000-05-04 2001-09-20 Buck, Martin, Dipl.-Ing., 27404 Zeven Anlage zum Fördern und Lagern von Paletten in einem Gestell
GB2536664A (en) * 2015-03-25 2016-09-28 Combilift Two-sided fork lift apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181881A (en) * 1938-10-10 1939-12-05 Laurence W Ferris Elevating apparatus
US3061118A (en) * 1959-04-22 1962-10-30 Budd Co Feeding device, especially for metal stampings
US3154208A (en) * 1959-11-16 1964-10-27 Barrett Cravens Co Fork lift truck with a laterally shiftable carriage means and forks that are pivotedabout a horizontal axis
GB987637A (en) * 1962-11-05 1965-03-31 Lansing Bagnall Ltd Improvements in or relating to industrial lift trucks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2181881A (en) * 1938-10-10 1939-12-05 Laurence W Ferris Elevating apparatus
US3061118A (en) * 1959-04-22 1962-10-30 Budd Co Feeding device, especially for metal stampings
US3154208A (en) * 1959-11-16 1964-10-27 Barrett Cravens Co Fork lift truck with a laterally shiftable carriage means and forks that are pivotedabout a horizontal axis
GB987637A (en) * 1962-11-05 1965-03-31 Lansing Bagnall Ltd Improvements in or relating to industrial lift trucks

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3762588A (en) * 1970-10-05 1973-10-02 Clark Equipment Co Front and lateral loading mechanism
US3977542A (en) * 1973-07-26 1976-08-31 Stopa Stahlbau Gmbh & Co. Kommanditgesellschaft Fur Schweisstechnik Storage frames with deflection bar to pivot tines on a gantry
US4016987A (en) * 1974-05-31 1977-04-12 Stopa Stahlbau Gmbh & Co. Storage system
US4194864A (en) * 1976-12-27 1980-03-25 Mitsubishi Jukogyo Kabushiki Kaisha Three-dimensional automatic warehouse equipment
US4636131A (en) * 1985-04-03 1987-01-13 Long Reach Manufacturing Co. Side shifter and narrow aisle attachment for a lift truck
WO2001042111A1 (en) * 1999-12-08 2001-06-14 Protosight Inc. Automated storage and retrieval system
US6325586B1 (en) * 1999-12-08 2001-12-04 Protosight, Inc. Automated storage and retrieval system
CN114572900A (zh) * 2022-03-21 2022-06-03 中研技术有限公司 一种曲柄摆杆的堆垛机

Also Published As

Publication number Publication date
SE336208B (enrdf_load_stackoverflow) 1971-06-28
GB1223168A (en) 1971-02-24
DE1802200A1 (de) 1969-06-19
NO120309B (enrdf_load_stackoverflow) 1970-09-28
DK116857B (da) 1970-02-16

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