US3848754A - Side loading fork unit for lift trucks - Google Patents

Side loading fork unit for lift trucks Download PDF

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Publication number
US3848754A
US3848754A US00373898A US37389873A US3848754A US 3848754 A US3848754 A US 3848754A US 00373898 A US00373898 A US 00373898A US 37389873 A US37389873 A US 37389873A US 3848754 A US3848754 A US 3848754A
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US
United States
Prior art keywords
cylinder
chain
forks
fork
gear wheel
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
US00373898A
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English (en)
Inventor
A Bryntse
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.)
Bygg Och Transportekonomi BT AB
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Bygg Och Transportekonomi BT AB
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 Bygg Och Transportekonomi BT AB filed Critical Bygg Och Transportekonomi BT AB
Application granted granted Critical
Publication of US3848754A publication Critical patent/US3848754A/en
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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
    • B66F9/075—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
    • B66F9/141—Platforms; Forks; Other load supporting or gripping members laterally movable, e.g. swingable, for slewing or transverse movements with shuttle-type movement

Definitions

  • a side loading fork unit for lift trucks comprises a [21] Appl. No.: 373,898 body and mounted for lateral movement in relation to said body forks and intermediate guides.
  • a P D mounted in said body for movement in the same direcorelgn pp canon Horny am tion as said forks and intermediate guides is a hydrau- July 1 l, 1972 Sweden 9i l5/72 cylinder provided teeth for engagement a gear wheel rotatable about a stationary axis in said U-S- Cl- BB, and gear wheel is fixedly connected to an Ilrt. Clother gear or chain wheel in engagement a rack Flald of Search BB, A, or chain respectively provided for in aid intermedi- 214/731, 750 ate guide.
  • a cable is affixed to and connects the left ends of said cylinder and said fork and References Clted runs over a roller in the right end of said intermediate UNITED STATES PATENTS guide.
  • Another cable is affixed to and connects the 2,951,599 9/1960 Bogar 2l4/l6.l c right ""1 of Said Cylinder fi for ⁇ ? and "f Over 3,561,620 2/1971 Willis 214 730 a roller m t l ft end of ald mt rm dmte gulde. 3,598,265 8/l97l Aaronson 214/730 FOREIGN PATENTS OR APPLICATIONS 2 5 Drawmg F'gures l,064,54l 4/1967 Great Britain 2l4/16.l DC
  • This invention relates to a side loading fork unit, wherein the forks are mounted for telescopic movement from a center position towards either side.
  • Such units are made to be attached to lift trucks in storage rooms for pallet loaded goods so that the truck can move in as narrow passages as possible.
  • a unit according to the invention can be made so small and simple, that it can be attached also to ordinary lift trucks, thereby enabling the truck passages in storage rooms to be dimensioned only half as wide as is now used when the loading takes place with a truck having the forks extending forward, which truck therefore must have the possibility to turn 90.
  • a body together with forks and intermediate guides displaceably mounted to move to either side in relation to said body, said intermediate guides by their displacement, via chains or cables, affixed at one end to the two ends of the forks, displacing said forks.
  • the displacement movement of the forks is stepped up by means of a hydraulic cylinder displaceably mounted in said body, the other ends of said chains or cables being affixed to the two opposite ends of said cylinder, and said cylinder also serves to move the intermediate guides and for that purpose is provided with teeth, which engage a gear wheel rotatable about a stationary axis, said gear wheel being fixedly connected to another gear or chain wheel, which is in engagement with a rack or chain, respectively, in the intermediate guide.
  • FIG. 1 is a front view of the side loading unit according to the invention
  • FIG. 2 is a side view of the same unit
  • FIG. 3 is a sectional, exploded view of the same unit
  • FIG. 4 is a sectional view on an enlarged scale of one of the telescopic forks of the same unit
  • FIG. 5 shows the same unit with the forks extended to the right as far as possible.
  • the unit has a body of beams l with rectangular cross section, into which the forks of a conventional lift truck can be inserted when the unit is attached to such a truck.
  • U-shaped channels 2 are fastened to these beams 1 and said channels carry rollers 4 on shaft 3.
  • the cylinder 13 moves along the piston-rod 12 and drives through its teeth a gear wheel 14 rotatable about a stationary shaft 15, mounted in the U-shaped channel 2.
  • a chain or cable 19,20 which crossing. each other run over rollers 21 rotatably mounted in the opposite ends of the guide 5 and thereafter, again crossing each other are affixed to the opposite ends of the forks 7.
  • a synchronizing device is provided for the movement of the guides and thus the forks 7, this device being in the form of a gear wheel 22 for each gear wheel 16 and in engagement with this wheel 16, said gear wheels 22 being firmly connected to each other on a common rotatable shaft 23.
  • the fork 7 can hereby be moved a distance C outside the body of the unit, which distance is necessary to bridge a required clearance between the unit and stock pile and without the need of the guide 5 to leave the center line of the unit. At the same time only a single central driving wheel for the guide 5 is required.
  • a side loading fork unit for lift trucks comprising a body and forks and intermediate guides mounted for lateral movement relative to said body, a hydraulic cylinder mounted for movement on said body in the same direction as said forks and intermediate guides, said cylinder having teeth thereon that engage with a gear wheel mounted on said body for rotation about a stationary axis, said gear wheel being fixedly connected to another gear or chain wheel in engagement with a rack or chain, respectively, on said intermediate guide, and a chain or cable secured to and interconnecting the left ends of said cylinder and fork and extending over a roller on the right end of said intermediate guide and another chain or cable secured to and interconnecting the right ends of said cylinder and fork and extending over a roller on the left end of said intermediate guide.

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)
US00373898A 1972-07-11 1973-06-26 Side loading fork unit for lift trucks Expired - Lifetime US3848754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE09115/72A SE366009B (enrdf_load_stackoverflow) 1972-07-11 1972-07-11

Publications (1)

Publication Number Publication Date
US3848754A true US3848754A (en) 1974-11-19

Family

ID=20275870

Family Applications (1)

Application Number Title Priority Date Filing Date
US00373898A Expired - Lifetime US3848754A (en) 1972-07-11 1973-06-26 Side loading fork unit for lift trucks

Country Status (4)

Country Link
US (1) US3848754A (enrdf_load_stackoverflow)
DE (1) DE2335110A1 (enrdf_load_stackoverflow)
GB (1) GB1383185A (enrdf_load_stackoverflow)
SE (1) SE366009B (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008815A (en) * 1975-04-14 1977-02-22 Applied Materials, Inc. Reactor loading apparatus
US4458808A (en) * 1981-05-26 1984-07-10 Loomer Weston R Shuttle table drive mechanism
US4595332A (en) * 1983-06-15 1986-06-17 Litton Systems, Inc. Shuttle
US4627143A (en) * 1983-06-15 1986-12-09 Litton Systems Inc. Method of forming telescoping shuttle table for mounting at least one sheave thereto
US5460475A (en) * 1993-10-21 1995-10-24 H. K. Systems, Inc. Long reach shuttle for storage and retrieval machine
DE4428550A1 (de) * 1994-08-12 1996-02-22 Kaup Gmbh & Co Kg Vorsatzgerät für Flurförderzeuge, insbesondere für Gabelstapler
US6419050B1 (en) * 1998-09-15 2002-07-16 Bestgroup Srl Mobile device for disabled persons
CN102718173A (zh) * 2012-06-09 2012-10-10 黑旋风锯业股份有限公司 一种堆垛机叠层式双向货叉
US20190359434A1 (en) * 2015-08-12 2019-11-28 Symbotic Canada, Ulc System and method for palletizing

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4016984A (en) * 1975-08-28 1977-04-12 Eaton Corporation Shuttle assembly for a load handling apparatus
US4388033A (en) * 1981-03-16 1983-06-14 Eaton Corporation Shuttle assembly
DE3519780C2 (de) * 1985-06-03 1993-12-23 Anlagen Und Filterbau Gmbh & C Teleskoptisch
US4988262A (en) * 1989-07-24 1991-01-29 Eaton Corporation Extended reach shuttle
DE4205856B4 (de) * 1991-04-13 2006-04-13 C. Haushahn Gmbh & Co Vorrichtung zur Lastaufnahme
IT1403012B1 (it) * 2010-12-10 2013-09-27 Eurofork S R L Forcola telescopica

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951599A (en) * 1956-06-15 1960-09-06 Lawrence A Bogar Vehicle parking device
GB1064541A (en) * 1964-01-13 1967-04-05 Glover & Sons Ltd J Apparatus for conveying automotive vehicles into a parking compartment
US3561620A (en) * 1969-12-15 1971-02-09 Wilfred Ernest Willis Side-loading attachment for fork-lift trucks
US3598265A (en) * 1970-01-05 1971-08-10 Stephen F Aaronson Laterally movable shuttle assembly with an article probe device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2951599A (en) * 1956-06-15 1960-09-06 Lawrence A Bogar Vehicle parking device
GB1064541A (en) * 1964-01-13 1967-04-05 Glover & Sons Ltd J Apparatus for conveying automotive vehicles into a parking compartment
US3561620A (en) * 1969-12-15 1971-02-09 Wilfred Ernest Willis Side-loading attachment for fork-lift trucks
US3598265A (en) * 1970-01-05 1971-08-10 Stephen F Aaronson Laterally movable shuttle assembly with an article probe device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008815A (en) * 1975-04-14 1977-02-22 Applied Materials, Inc. Reactor loading apparatus
US4458808A (en) * 1981-05-26 1984-07-10 Loomer Weston R Shuttle table drive mechanism
US4595332A (en) * 1983-06-15 1986-06-17 Litton Systems, Inc. Shuttle
US4627143A (en) * 1983-06-15 1986-12-09 Litton Systems Inc. Method of forming telescoping shuttle table for mounting at least one sheave thereto
US5460475A (en) * 1993-10-21 1995-10-24 H. K. Systems, Inc. Long reach shuttle for storage and retrieval machine
DE4428550A1 (de) * 1994-08-12 1996-02-22 Kaup Gmbh & Co Kg Vorsatzgerät für Flurförderzeuge, insbesondere für Gabelstapler
US6419050B1 (en) * 1998-09-15 2002-07-16 Bestgroup Srl Mobile device for disabled persons
CN102718173A (zh) * 2012-06-09 2012-10-10 黑旋风锯业股份有限公司 一种堆垛机叠层式双向货叉
CN102718173B (zh) * 2012-06-09 2014-09-17 黑旋风锯业股份有限公司 一种堆垛机叠层式双向货叉
US20190359434A1 (en) * 2015-08-12 2019-11-28 Symbotic Canada, Ulc System and method for palletizing
US10934107B2 (en) * 2015-08-12 2021-03-02 Symbolic Canada, ULC System and method for palletizing
US11427414B2 (en) 2015-08-12 2022-08-30 Symbotic Canada, Ulc System and method for palletizing
US11970348B2 (en) 2015-08-12 2024-04-30 Symbotic Canada, Ulc System and method for palletizing

Also Published As

Publication number Publication date
DE2335110A1 (de) 1974-01-24
GB1383185A (en) 1975-02-05
SE366009B (enrdf_load_stackoverflow) 1974-04-08

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