US3750814A - Expandable top-handling container attachment - Google Patents

Expandable top-handling container attachment Download PDF

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Publication number
US3750814A
US3750814A US00185698A US3750814DA US3750814A US 3750814 A US3750814 A US 3750814A US 00185698 A US00185698 A US 00185698A US 3750814D A US3750814D A US 3750814DA US 3750814 A US3750814 A US 3750814A
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US
United States
Prior art keywords
hydraulic cylinder
beams
transverse beam
lift
transverse
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
US00185698A
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English (en)
Inventor
T Allegri
C Chelin
D Evans
N Thompson
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.)
Caterpillar Industrial Inc
Original Assignee
Towmotor Corp
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 Towmotor Corp filed Critical Towmotor Corp
Application granted granted Critical
Publication of US3750814A publication Critical patent/US3750814A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • B66F9/18—Load gripping or retaining means
    • B66F9/186—Container lifting frames
    • 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
    • B66F9/19—Additional means for facilitating unloading

Definitions

  • the lift frame attachment is adapted for easy attachment to, or detachment from a carriage of a large-size fork-lift truck, and includes telescoping, transverse beam members that can be extended or retracted in length to fit intermixed containers of various lengths.
  • Attachments that are adaptable to fork-lift truck carriages are also being used, but lack versatility in handling containers of intermixed sizes without removing one attachment and replacing it with another one of a size suitable for the container to be handled. This has posed serious limitations on their acceptance by industry. It can be understood that the need to change attachments to accommodate different length containers is expensive from the standpoint of equipment investment, the cost of labor to accomplish the changeover, and the loss of production that is caused by having the vehicle idle during the changeover of attachments.
  • the present invention provides a top-handling con tainer attachment for a fork-lift truck that is operatorcontrolled to adjust itself to fit intermixed cargo containers of varying lengths with little or no loss of vehicle operation time.
  • the subject lift frame is easily attached to or detached from a standard fork-lift carriage. This has the benefit of having economic advantages of a truly versatile lift truck that can function either as a fork-lift truck or as a container carrier machine.
  • Another object of this invention is to provide a liftframeattachment that can be easily mounted to or removed from a fork truck carriage.
  • FIG. 1 is aplan view of the container lift-frame according to the present invention mounted on a suitable fork-lift truck;
  • FIG. 2 is a front elevation of the container lift-frame of FIG. 1;
  • FIG. 3 is an end view of the container lift-frame of FIG. 1;
  • FIG. 4 is an illustration of one of the means on the device for coupling and locking to a container
  • FIG. 5 is an enlarged view of the slide member located between each pair of inner and outer cylinders.
  • FIG. 6 is an enlarged, partial, front sectional view of a second embodiment of the instant invention.
  • FIGS. 1 5 there is illustrated a partial view of a lift truck 10 which includes a standard fork-lift truck mast and a fork carriage 12 (with forks removed) upon which is mounted the container liftframe attachment 14.
  • a suitable attaching and retaining means such as described in U. S. Pat. No. 3,499,563 to .I. E. Ferry ct al., and assigned to the assignee hereof, may be used to attach the frame to the carriage.
  • the lift-frame of this invention comprises a vertical frame 16 having two outwardly extending, horizontal support arms 18 that are attached to the transverse box-beam member 20.
  • lift-frame attachment I4 is removably mounted] on fork carriage 12 which is conventionally attached to the mast structure of a lift truck 10.
  • the lift forks are removed from the fork carriage 12 before mounting the attachment l4 thereon.
  • lift-frame attachment 14 could be directly mounted on the lift forks (not shown) of the carriage 12.
  • the transverse beam 20 is of a hollow box beam shape, within which telescope the extensible transverse beam members 22 of a similar shape. These beam members are adapted to slidably travel outwardly and inwardly.
  • the load support beam members 24 can thus be positioned to connect with cargo containers 54 of varying lengths.
  • Appended to the outer ends of each transverse beam member 22 are downwardly extending lugs 28 and 30, fixed thereto to pivotally support the extending load support and lift beams 24.
  • the load support and lift beams 24 are pivoted to the lugs 28 and 30 by pin 32, that passes through the longitudinal mid-point of beam 24 and is retained within bearing holes in the lower portion of the depending lugs.
  • support and lift beams 24 are free to rotate in the vertical plane about the point fixed by pin 32.
  • the support and lift beams 24 are limited in their extent of rotation by resilient load stops (not shown) and by a load damper means 34, it being rotatably attached by known means to load support and lift beam 24 and the cross beam member 22.
  • a pair of standard twist locks 26 depends from support and lift beam 24, one at either end thereof.
  • FIGS; 1 and 5 The transverse movement of the extensible cross beam member 22 within beam member is best shown in FIGS; 1 and 5.
  • the head end of hydraulic cylinder means 36 is pivotally attached to brackets 52, with said brackets being fixed within the box beam member 20.
  • the rod-end 40 of the cylinder means 36 is pivotally attached by means of pin 48 to the sliding link assembly 42.
  • pin 48 thus acts to secure the rod 40 to the slider assembly plate 46, which in turn is welded to two slider plates 44.
  • Pin 50 is located in the opposite end of plate 46 from pin 48, with the pin 50 rotatably securing the head end of hydraulic cylinder means 38 to the slider assembly 42.
  • the rod end 49 of cylinder means 38 is pivotally secured to a plurality of brackets 51 which are secured to the outer end of the box beam member 22.
  • the beams are dimensioned so that when transverse beam members 22 are fully retracted to provide a minimum length transverse beam, a standard 20 foot long minimum length cargo container can be accommodated.
  • the lift truck operator can actuate a plurality of hydraulic control valve means 29 of known construction to introduce hydraulic fluid under pressure to a plurality of hydraulic cylinder means 36, 38, which will, in turn, cause beam members 22 to slidably travel in a transverse, outward direction.
  • the operator can actuate a hydraulic control valve means 29 of known construction that will, in turn, provide hydraulic fluid under pressure to the two hydraulic cylinders 36.
  • This action will extend cylinder rods 40, the two slide assemblies 42, and cylinders 38, thus positioning the adjustable transverse members 22 and the associated support and lift beams 24 for attachment to the next longer size cargo container, e.g., 24 feet.
  • theoperator can actuate a hydraulic control valve of known construction, to provide hydraulic fluid pressure to the two hydraulic cylinders 38, thus further extending transverse beam members 22 and their associated support and lift beams 24.
  • the control valve means 29 previously mentioned is understood to be such that either one valve control lever or pedal actuates cylinders 36 and a similar lever or pedal actuates cylinders 38, or a single valve and control means actuates both cylinders 36 and 38.
  • FIG. 6 An alternative embodiment is shown in FIG. 6 which would accommodate very long containers of 30 or 40 feet. It may be parenthetically noted that primes are used throughout the following discussion to denote structure having its analogous numerical counterpart in the primary embodiment.
  • additional telescoping beams 64 are provided intermediate beams 20' and 22.
  • Hydraulic cylinders 36' are fixed to these slidable beams 64 by means of brackets 52'.
  • a plurality of hydraulic cylinders 56 having their head ends pivotally secured to beam 20' and their rod ends 58 to beam 64 by means of brackets 60 and 62, respectively, are provided.
  • Hydraulic control means 29' is used to provide hydraulic fluid under pressure for actuating these hydraulic cylinders. While only one-half of the entire structure is shown in FIG. 6, it is to be understood that the other half is identical with the first half.
  • a cargo container lift frame comprising an upright frame,
  • first and second lift beams pivotally secured to said transverse beam means, wherein said transverse beam means comprise,
  • first transverse beam member having means associated therewith slidably securing a second transverse beam member
  • a third transverse beam member to opposite ends of said first transverse beam member, wherein said means slidably securing said beam members comprise,
  • said power means for extending and retracting said transverse beam means whereby said lift frame may aecommodate containers of various lengths
  • said power means comprise, hydraulic cylinder means associated with said beams for extending and retracting said beams
  • control valve means for controlling said hydraulic cylinder means, wherein said hydraulic cylinder means comprise,
  • first hydraulic cylinder means operatively connected between said first and second transverse beam members
  • first slidable link means and wherein said second hydraulic cylinder means comprise,
  • third and fourth hydraulic cylinders said third and fourth cylinders being operatively connected by second slidable link means.
  • a cargo container lift frame comprising an upright frame,
  • first and second lift beams pivotally secured to said transverse beam means, wherein said transverse beam means comprise,
  • said plurality of beams comprise,
  • second and third transverse beam members each being slidably received in one of said means defining an opening whereby said second and third beam members extend outwardly from said first transverse beam member
  • fourth and fifth transverse beam members being slidably received in said second and third beam members, respectively, and extending outwardly therefrom,
  • hydraulic cylinder means associated with said beams for extending and retracting said beams
  • control valve means for controlling said hydraulic cylinder means.
  • a second hydraulic cylinder means operatively connected between said third and fifth beams.
  • first and second cylinders being operatively connected by first slidable link means, and wherein said second hydraulic cylinder means comprise,
  • fifth and sixth hydraulic cylinders said fifth and sixth cylinders being operatively connected by second slidable link means, and wherein said first and second hydraulic cylinder means are located internally of said transverse beams.
  • said container engaging means comprises twist locks adapted for engagement into container corner castings and means for locking and unlocking said twist locks from container corner castings.
  • control valve means comprise, a plurality of control valves for selectively actuating said first and second, said third and fourth, and said fifth and sixth hydraulic cylinders, respectively,
  • control valve means comprise, control valves for selectively actuating said first and second, and said third and fourth hydraulic cylinders, respectively.
  • the lift frame of claim 1 further including a cushioning member on said upright frame.
  • said container engaging means comprises twist locks adapted for engagement into container corner castngs and means for locking and unlocking said twist locks from container corner castings.
  • the lift frame of claim 1 further including load damper means for damping motion of said first and second lift beams.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Forklifts And Lifting Vehicles (AREA)
US00185698A 1971-10-01 1971-10-01 Expandable top-handling container attachment Expired - Lifetime US3750814A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18569871A 1971-10-01 1971-10-01

Publications (1)

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US3750814A true US3750814A (en) 1973-08-07

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US00185698A Expired - Lifetime US3750814A (en) 1971-10-01 1971-10-01 Expandable top-handling container attachment

Country Status (6)

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US (1) US3750814A (enrdf_load_stackoverflow)
JP (1) JPS4841456A (enrdf_load_stackoverflow)
BE (1) BE789237A (enrdf_load_stackoverflow)
CA (1) CA952150A (enrdf_load_stackoverflow)
FR (1) FR2156685B1 (enrdf_load_stackoverflow)
GB (1) GB1400866A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017110A (en) * 1975-05-19 1977-04-12 Clark Equipment Company Cylinder and piston assembly
US4373755A (en) * 1979-10-27 1983-02-15 Klaus Herberholz Lifting device for the transportation of flasks
US5052734A (en) * 1990-04-17 1991-10-01 Paceco Corp. Lifting spreader compensating mechanism
US5236238A (en) * 1991-09-16 1993-08-17 Sea-Land Service, Inc. Apparatus for securing shore crane spreaders to auxiliary frames
US5350210A (en) * 1991-09-16 1994-09-27 Sea-Land Service, Inc. Apparatus for securing shore crane spreaders to auxiliary frames
CN103569913A (zh) * 2012-07-18 2014-02-12 中国北车集团大同电力机车有限责任公司 叉车转运工装
US20140232127A1 (en) * 2013-02-18 2014-08-21 Terrafirma Roadways Limited Crane crab head
US20150030422A1 (en) * 2012-02-20 2015-01-29 Elme Spreader Ab Side lift spreader
CN113233306A (zh) * 2021-03-31 2021-08-10 哈尔滨锅炉厂有限责任公司 一种y型组合支吊装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6232694Y2 (enrdf_load_stackoverflow) * 1979-06-22 1987-08-21
EP0091977B1 (de) * 1982-04-20 1985-09-18 Peiner Maschinen- und Schraubenwerke AG Spreader mit einer Schwerpunktausgleichseinrichtung
SE449217B (sv) * 1984-03-23 1987-04-13 Dynatrans Technology Ltd Lyftok for containers
CA2000295A1 (en) * 1988-10-13 1990-04-13 Kenneth W. Baldock Lifting spreader frame
FR2659637B1 (fr) * 1990-03-14 1992-07-24 Cosne Ind Sg Dispositif de levage pour conteneurs.
EP0646539B1 (en) * 1993-10-01 2000-01-19 Elmhults Konstruktions AB A Container Yoke
JP6289397B2 (ja) * 2015-02-13 2018-03-07 ジヤトコ株式会社 ケース反転治具
CN108892025B (zh) * 2018-09-14 2023-09-08 上海久能机电制造有限公司 一种耐冲击由直线电机驱动的吊具转销机构

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387729A (en) * 1966-07-25 1968-06-11 Strick Corp Container lifting frame for use with forklift truck
US3499563A (en) * 1967-12-21 1970-03-10 Towmotor Corp Container lift frame
US3514002A (en) * 1967-10-16 1970-05-26 Theodore H Allegri Antiracking container lift frame
US3552557A (en) * 1967-09-04 1971-01-05 Lancer Boss Ltd Lifting apparatus
US3576269A (en) * 1969-03-12 1971-04-27 Towmotor Corp Vehicle for handling containers of varying lengths
US3589540A (en) * 1968-05-13 1971-06-29 Lancer Boss Ltd Forklift attachments

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3387729A (en) * 1966-07-25 1968-06-11 Strick Corp Container lifting frame for use with forklift truck
US3552557A (en) * 1967-09-04 1971-01-05 Lancer Boss Ltd Lifting apparatus
US3514002A (en) * 1967-10-16 1970-05-26 Theodore H Allegri Antiracking container lift frame
US3499563A (en) * 1967-12-21 1970-03-10 Towmotor Corp Container lift frame
US3589540A (en) * 1968-05-13 1971-06-29 Lancer Boss Ltd Forklift attachments
US3576269A (en) * 1969-03-12 1971-04-27 Towmotor Corp Vehicle for handling containers of varying lengths

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4017110A (en) * 1975-05-19 1977-04-12 Clark Equipment Company Cylinder and piston assembly
US4373755A (en) * 1979-10-27 1983-02-15 Klaus Herberholz Lifting device for the transportation of flasks
US5052734A (en) * 1990-04-17 1991-10-01 Paceco Corp. Lifting spreader compensating mechanism
US5236238A (en) * 1991-09-16 1993-08-17 Sea-Land Service, Inc. Apparatus for securing shore crane spreaders to auxiliary frames
US5350210A (en) * 1991-09-16 1994-09-27 Sea-Land Service, Inc. Apparatus for securing shore crane spreaders to auxiliary frames
US20160221811A1 (en) * 2012-02-20 2016-08-04 Elme Spreader Ab Side lift spreader
US20150030422A1 (en) * 2012-02-20 2015-01-29 Elme Spreader Ab Side lift spreader
US10377616B2 (en) 2012-02-20 2019-08-13 Elme Spreader Ab Side lift spreader
US9751739B2 (en) * 2012-02-20 2017-09-05 Elme Spreader Ab Side lift spreader
US9394149B2 (en) * 2012-02-20 2016-07-19 Elme Spreader Ab Side lift spreader
CN103569913A (zh) * 2012-07-18 2014-02-12 中国北车集团大同电力机车有限责任公司 叉车转运工装
US20140232127A1 (en) * 2013-02-18 2014-08-21 Terrafirma Roadways Limited Crane crab head
US9297124B2 (en) * 2013-02-18 2016-03-29 Newpark Mats & Integrated Services Llc Methods of moving at least one mat with a crane-mounted grab head
US9132996B2 (en) * 2013-02-18 2015-09-15 Newpark Mats & Integrated Services Llc Crane-mounted grab head
CN113233306A (zh) * 2021-03-31 2021-08-10 哈尔滨锅炉厂有限责任公司 一种y型组合支吊装置

Also Published As

Publication number Publication date
CA952150A (en) 1974-07-30
FR2156685A1 (enrdf_load_stackoverflow) 1973-06-01
BE789237A (fr) 1973-03-26
JPS4841456A (enrdf_load_stackoverflow) 1973-06-18
GB1400866A (en) 1975-07-16
FR2156685B1 (enrdf_load_stackoverflow) 1977-08-26

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