US3515424A - Arrangement in or relating to vacuum lifter - Google Patents

Arrangement in or relating to vacuum lifter Download PDF

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Publication number
US3515424A
US3515424A US680071A US3515424DA US3515424A US 3515424 A US3515424 A US 3515424A US 680071 A US680071 A US 680071A US 3515424D A US3515424D A US 3515424DA US 3515424 A US3515424 A US 3515424A
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US
United States
Prior art keywords
vacuum
wrapping
arrangement
suction cup
relating
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
US680071A
Other languages
English (en)
Inventor
Einar Sjodin
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.)
MUNCK INTERN AS
Original Assignee
MUNCK INTERN 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 MUNCK INTERN AS filed Critical MUNCK INTERN AS
Application granted granted Critical
Publication of US3515424A publication Critical patent/US3515424A/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
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0293—Single lifting units; Only one suction cup
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/74—Feeding, transfer, or discharging devices of particular kinds or types
    • B65G47/90—Devices for picking-up and depositing articles or materials
    • B65G47/91—Devices for picking-up and depositing articles or materials incorporating pneumatic, e.g. suction, grippers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0206—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means for handling bulk or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
    • B66C1/02—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by suction means
    • B66C1/0212—Circular shape

Definitions

  • the present invention relates to an arrangement in vacuum lifters of the kind comprising one or more suction cups having a rim sealing member and being connected by means of hoses or the like to a source of vacuum and further comprising members for the suspension from a crane, boom, truck or other transport means.
  • the vacuum pump has the necessary capacity to maintain an effective vacuum in spite of the leakage through the load to be lifted or the load is provided with a wrapping of for example paper, or plastic.
  • a wrapping of for example paper, or plastic can be provided for paper rolls, cellulose bales, packaged lumber, bricks, boxes etc.
  • the suction cup is then placed against the wrapping in which preferably is inserted a plate to provide a plane contact surface for the suction cup. In the wrapping there must, however, be holes in the area located under the suction cup, since otherwise the wrapping would be sucked to the cup and be torn off while the load itself was left.
  • the invention obviates said drawbacks.
  • FIG. 1' is a perspective view of a cutting element according to the invention
  • FIG. 2 shows diagrammatically and in section the arrangement of the cutter element of FIG. 1 in a vacuum lifter and FIG. 3 shows the arrangement according to FIG. 2 after the evacuation has begun.
  • a metallic element or a shield plate 1 having V-formed cross section is provided with side flanges with holes for the securing at the inner surface of the suction cup 2.
  • the element 1 is placed over the suction opening 8.
  • the load 5 for example a paper roll, is provided with a wrapping 6 which at the upper end of the roll is reinforced by being duplicated 6', 6".
  • FIG. 2 the suction cup with its sealing strip 4 is brought to rest against the outer sruface of the wrapping at the end of the paper roll.
  • the wrapping 6, 6" is sucked up against the inner surface of the suction cup 2.-
  • the wrapping thereby is pressed against the element 1, which is as will be seen provided with downward directed, sharp pointed croners 1.
  • the wrapping is pressed against the element 1 said corners 1' will cut through the wrapping 6, 6" and the evacuation of the interior of the load 5 can occur as shown in FIG. 3.
  • the cutter element 1 can of course be given other form than that disclosed in the drawing and described above. Further, two or more such elements can be arranged in the vacuum lifter. It is also possible to carry out the cutter element as a part of a valve arrangement known per se, which only opens for suction when the vacuum lifter is placed in accurate position against the load.
  • a vacuum lifting device comprising a suction cup having a rim sealing member for engaging a wrapped article to be lifted, an opening from the interior of said suction cup, a hose means connected to the opening and adapted to be connected to a vacuum source, a cutting element positioned over said opening on the interior of the suction cup, said cutting element being a hollow member having opposed V-shaped ends which form cutting points facing away from the said opening, such that when the wrapped article is pulled by the vacuum toward the opening, the said points pierce the wrapping of the article and pass therethrough, such that the V-shaped ends form channels from the interior of the pierced wrapped article to the said opening.
  • a vacuum lifting device according to claim 1 wherein said cutting element is an elongated channel member with downwardly inclined ends which form said V-shaped ends to form said points, the center of the elongated channel between said downwardly inclined ends being directly across from the said opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packaging Of Special Articles (AREA)
  • Manipulator (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US680071A 1967-04-18 1967-11-02 Arrangement in or relating to vacuum lifter Expired - Lifetime US3515424A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO167780A NO115183B (US06312121-20011106-C00033.png) 1967-04-18 1967-04-18

Publications (1)

Publication Number Publication Date
US3515424A true US3515424A (en) 1970-06-02

Family

ID=19910026

Family Applications (1)

Application Number Title Priority Date Filing Date
US680071A Expired - Lifetime US3515424A (en) 1967-04-18 1967-11-02 Arrangement in or relating to vacuum lifter

Country Status (8)

Country Link
US (1) US3515424A (US06312121-20011106-C00033.png)
BE (1) BE706099A (US06312121-20011106-C00033.png)
DE (1) DE1531233B1 (US06312121-20011106-C00033.png)
DK (1) DK113172B (US06312121-20011106-C00033.png)
FI (1) FI44276B (US06312121-20011106-C00033.png)
GB (1) GB1132819A (US06312121-20011106-C00033.png)
NO (1) NO115183B (US06312121-20011106-C00033.png)
SE (1) SE312417B (US06312121-20011106-C00033.png)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306663A (en) * 1980-07-30 1981-12-22 Gelardi Anthony L Cassette shell modification and method of assembly and use
FR2565571A1 (fr) * 1984-06-06 1985-12-13 Fagniart Gaston Ventouse perforante pour manutention et vidange d'emballages souples etanches
US4625953A (en) * 1985-05-15 1986-12-02 Hi-Tec Seiko Company Ltd. Sheet separating device
GB2182908A (en) * 1985-10-25 1987-05-28 Aera Sarl Method and device for removing a paper tray from a pile
US4978269A (en) * 1989-03-02 1990-12-18 Toter, Inc. Vacuum controlled lifting apparatus
US20040112233A1 (en) * 2002-12-10 2004-06-17 Fuji Photo Film Co., Ltd. Printing plate sucker
US20060182607A1 (en) * 2005-01-18 2006-08-17 Clark Jason A Method and apparatus for depalletizing bagged products

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102023101301B3 (de) 2023-01-19 2024-03-14 Harburg-Freudenberger Maschinenbau Gmbh Vakuumheber zum Heben einer Materialeinheit und Verfahren zum Betrieb eines Vakuumhebers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321889A (en) * 1964-06-11 1967-05-30 Exxon Research Engineering Co Packaging of synthetic rubber blocks

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040920A (en) * 1958-09-15 1962-06-26 Hyster Co Method and apparatus for handling loads

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321889A (en) * 1964-06-11 1967-05-30 Exxon Research Engineering Co Packaging of synthetic rubber blocks

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4306663A (en) * 1980-07-30 1981-12-22 Gelardi Anthony L Cassette shell modification and method of assembly and use
FR2565571A1 (fr) * 1984-06-06 1985-12-13 Fagniart Gaston Ventouse perforante pour manutention et vidange d'emballages souples etanches
US4625953A (en) * 1985-05-15 1986-12-02 Hi-Tec Seiko Company Ltd. Sheet separating device
GB2182908A (en) * 1985-10-25 1987-05-28 Aera Sarl Method and device for removing a paper tray from a pile
US4978269A (en) * 1989-03-02 1990-12-18 Toter, Inc. Vacuum controlled lifting apparatus
US20040112233A1 (en) * 2002-12-10 2004-06-17 Fuji Photo Film Co., Ltd. Printing plate sucker
US7028617B2 (en) * 2002-12-10 2006-04-18 Fuji Photo Film Co., Ltd. Printing plate sucker
US20060182607A1 (en) * 2005-01-18 2006-08-17 Clark Jason A Method and apparatus for depalletizing bagged products

Also Published As

Publication number Publication date
NO115183B (US06312121-20011106-C00033.png) 1968-08-19
FI44276B (US06312121-20011106-C00033.png) 1971-06-30
SE312417B (US06312121-20011106-C00033.png) 1969-07-14
GB1132819A (en) 1968-11-06
BE706099A (US06312121-20011106-C00033.png) 1968-03-18
DE1531233B1 (de) 1970-12-03
DK113172B (da) 1969-02-24

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