US3777930A - Shouldered wickets - Google Patents

Shouldered wickets Download PDF

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Publication number
US3777930A
US3777930A US3777930DA US3777930A US 3777930 A US3777930 A US 3777930A US 3777930D A US3777930D A US 3777930DA US 3777930 A US3777930 A US 3777930A
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US
United States
Prior art keywords
wicket
stack
bearing member
horizontally extending
members
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
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English (en)
Inventor
A Ericson
G Haettinger
E Pedersen
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.)
Viskase Corp
Original Assignee
Union Carbide 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.)
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Publication date
Application filed by Union Carbide Corp filed Critical Union Carbide Corp
Application granted granted Critical
Publication of US3777930A publication Critical patent/US3777930A/en
Assigned to VISKASE CORPORATION, A CORP. OF PA. reassignment VISKASE CORPORATION, A CORP. OF PA. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: UNION CARBIDE CORPORATION, A CORP. OF NEW YORK
Assigned to CONTINENTAL BANK N.A. reassignment CONTINENTAL BANK N.A. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: VISKASE CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47F—SPECIAL FURNITURE, FITTINGS, OR ACCESSORIES FOR SHOPS, STOREHOUSES, BARS, RESTAURANTS OR THE LIKE; PAYING COUNTERS
    • A47F13/00—Shop or like accessories
    • A47F13/08—Hand implements, e.g. grocers' scoops, ladles, paper-bag holders
    • A47F13/085—Shopping-bag holders
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T225/00—Severing by tearing or breaking
    • Y10T225/20—Severing by manually forcing against fixed edge
    • Y10T225/224—With means to hold pad or stack of individual sheets

Definitions

  • ABSTRACT A shouldered wicket for holding a stack of flat flexible articles such as plastic packaging bags or sheets which are to be removed one at a time from the top of the stack, the shoulder portions of the wicket exten ing upwardly above the rest of the wicket to facilitate ticle removal from the wicketed stack.
  • the present invention relates to wickets for holding stacked supplies of flat flexible articles which are to be dispensed or removed from the stacks either manually or automatically one at a time for utilization and more particularly to wickets for holding stacked supplies of flattened flexible plastic packaging articles such as bags or wrapping sheets in readiness for removal and use at industrial packaging stations.
  • Packaging operations in industry are of significant import and interest towards promoting the rapid, efficient and economical packaging of products for the market.
  • Food packaging generally and the meat packing industry in particular require additionally the strict maintenance of sanitary conditions.
  • Automatic or semiautomatic packaging techniques have been developed towards achievement of these desired goals.
  • Semiautomatic packing techniques that is to say those requiring the cooperation of a human operator with a machine, are uniquely of interest to the meat packing industry since the products being packaged frequently are not exactly alike as to size, shape and weight, a circumstance militating against fully automatic packing.
  • food products, meat cuts and the like for example are at least sufficiently alike in size, shape and weight in a given series to permit the use of packaging bags or wrapping sheets of the same size and material, some degree of automation in the packaging operation is possible.
  • wickets whether they are parts of an automatic packaging apparatus or simple bag supply holder device or are furnished along with the packaged prewicketed bags, are as stated above, extremely important elements in these packaging operations as will be readily appreciated by persons familiar with the art.
  • Criteria for wicket design dictate that each bag in turn atop a stack of wicketed bags at a packaging station must be readily removable without the incidental production of bag scraps and with clean direct tears through the bag material from the wicket holes to the outer open edge of each holed ply of the bag.
  • the present invention was concieved and reduced to practice with the object of providing a wicket to hold stacked flat flexible articles and to permit facile one at a time removal of the articles from atop the stack without damage to the articles.
  • a still further and important object of the present invention is to provide a wicket which is particularly suitable for use in conjunction with automatic and semiautomatic packaging apparatus where the packaging operation proceeds at sustained relatively high speeds.
  • FIG. 1 shows a wicket according to the present inventions in place in a sectional view through a typical semiautomatic packaging apparatus.
  • FIG. 2 shows a frontal view of an alternative wicket embodiment according to the invention.
  • FIG. 3 is a side view of the FIG. 2 embodiment.
  • FIG. 4 is a top view of the FIG. 2 embodiment.
  • FIG. 5 is a frontal view of another alternative embodiment of a wicket according to the invention.
  • FIG. 6 is a side view of the FIG. 5 embodiment.
  • FIG. 7 is a top view of the FIG. 5 embodiment.
  • FIG. 8 is a plan or top view showing a possible modification to any of the wicket embodiments according to the invention.
  • the present invention comprehends a wicket for holding a stack of flat flexible articles provided with paired holes to accommodate wicket leg members, which articles are to be removed one at a time from the stack, said wicket comprising, in combination; a horizontally extending bearing member adapted to apply a vertical restraining force to said stack spaced from said holes and having a bearing contact span on the topmost article of the stack at maximum equal to the linear distance between the paired holes plus two hole diameters; leg members extending vertically each respectively through the paired holes in the stack adapted to maintain the individual articles therein and the holes in substantially registering relationship, said wicket leg members having free ends adapted to extend insertably into wicket mounting means and; shoulder members each having a first element connected to and extending upwardly from an end of the bearing member, a second element connected to and extending upwardly from an upper end of a leg member, and connecting means between the first element and the second element.
  • the horizontally extending bearing member is adapted to bear on the topmost article of the stack along a line between the paired holes.
  • the horizontally extending bearing member is adapted to bear on the topmost article of the stack only partly on a line between the paired holes.
  • the horizontally extending bearing member is adapted to bear on the topmost article of the stack on a locus other than a line between the paired holes.
  • the horizontally extending bearing member is adapted to transmit a vertical restraining force to said stack and to bear on the topmost article of the stack for a total distance less than its overall horizontal span.
  • any and all of the embodiments of apparatus according to the present invention may be fabricated from rod-like stock elements, and, in most instances, advantageously may be connectedly and integrally formed from a unitary rod-like element.
  • FIG. 1 shows, in a sectional view through a semiautomatic packaging apparatus, a wicket according to the present invention in place holding a stack of flattened flexible plastic bags 11, with a topmost bag 13 of the stack opened, by an air stream for instance, and in readiness to receive an article to be packaged.
  • the wicket shown comprises a horizontally extending bearing member 15 which is adapted to apply vertical restraining force directly on the lower ply of bag 13 and to the bags 11. This vertical restraining force may be applied to the bearing member and/or to other parts of the wicket by loading the wicket with a pivotally cantilevered air nozzle 12 of the packaging machine such as is illustrated in greater detail in the Kupsicevicius application supra.
  • wicket leg members 23, 25 extend vertically each respectively through holes 27, 29 in the stacked bags 11 and are mounted insertably in suitable holes in a wicket base 21, holding the stacked bags in substantially registering relationship.
  • each shoulder member comprising respectively, a first element 31,33 extending upwardly from an end of the bearing member 15, a second element 35,37 extending upwardly from the uppermost portion of each leg member 23,25, and connecting means 39,41 joining respective first and second elements.
  • all of the wicket members and elements may be connectedly and integrally formed from a single piece of suitably heavy gage wire or rod stock, usually some kind of metal such as steel or stainless steel.
  • This shouldered wicket structure relieves the wicketed bags of troublesome stress concentrations at the bag holes and permits direct clean tears of each topmost bag in turn from the wicket from the holes to the bag outer edge, a feature particularly important in the use of so-called arc-mouthed bags where the holed lower ply of each bag is wicket-held while an arcuitely deep-cut upper ply is left free of the wicket to be readily opened for insertion of an article being packaged.
  • the horizontally extending bearing member applies sufficient downward force to the topmost bag lower ply and the stacked bags therebeneath to maintain the bags in satisfactory registration for cooperation with other functional elements in the packaging operation.
  • the shouldered wicket according to the present invention has all its parts substantially in the same vertical plane and is called an M wicket.
  • FIGS. 2, 3 and 4 of the drawings show an alternative form of wicket, respectively in frontal, side and top views, wherein the upwardly extending shoulder members are in the form of loops, but which may nevertheless be identified, part by part, with the wicket of FIG. 1.
  • FIGS. 2, 3 and 4 show a wicket having a horizontally extending bearing member 115, leg members 123, 125, extending vertically each respectively through holes 127, 129 in stacked bags 111, each loop form shoulder member comprising respectively, a first element 131, 133 extending upwardly from an end of the bearing member 115, a second element 135,137 extending upwardly from the uppermost portion of each leg member 123,125 and connecting means 139,141 joining respective first and second elements.
  • the looped M wicket which this variation is called, permits of a greater bearing surface contact on the bags than is possible with uniplanar M wickets as can be seen particularly from the top view, FIG. 4.
  • FIGS. 5, 6 and 7 of the drawings a further style of looped M wicket, called the canted loop M wicket, is shown respectively in frontal, side and top views. All of the members and elements as shown, 215, 223, 225, 231, 233, 235, 237, 239 and 241 are cooperatively arranged as in the FIGS. 2, 3, 4 looped M wicket but wherein the shoulder loops are canted outwardly of the legs. This arrangement is found to be particularly useful where the bag wicket holes 227, 229 are edge reinforced, since greater free clearance obtains between the hole edges and bearing contact line of the horizontally extending bearing member 215.
  • FIG. 8 shows in top or plan view a further alternative feature which is applicable to any of the wicket embodiments according to the invention.
  • This alternative structure comprehends a horizontal bearing member 315 which has a bearing locus on the stack bags other than anywhere coincident with a line between the paired holes 327, 329.
  • This wicket design it has been found, is particularly appropriate in effecting bag lower ply edge restraint in operations involving air-opening of the bags and, as noted, is adaptable to all embodiments of wickets according to the present invention.
  • the bearing contact span length on the topmost bag of the bag stack is, at its maximum, equal to the linear distance between the outermost edges of the paired holes or, in other words, the linear distance between the innermost edges of the paired holes, plus two hole diameters.
  • bearing contact span length is meant the overall straight linear distance measured across the planform view of any given horizontal bearing member, irrespective of its length as fully traversed.
  • Wickets of the embodiments and styles described have been made from metal rod stocks and relatively heavy gage wire and tested with consistently excellent and reproducible results.
  • a wicket for holding a stack of flat flexible articles provided with paired holes to accommodate wicket leg members, which articles are to be removed one at a time from the stack, said wicket comprising, in combination,
  • a horizontally extending bearing member arranged and disposed to apply a vertical restraining force to said stack and having a bearing contact span length on the topmost article of the stack at maximum equal to the linear distance between the paired holes plus two hole diameters
  • leg members extending vertically through the paired holes in the stack each respectively adapted to maintain the individual articles therein and the holes in substantially registering relationship, said wicket leg members having free ends adapted to extend insertably into wicket mounting means, and
  • shoulder members each having a first element connected to and extending upwardly from an end of the bearing member, a second element connected to and extending upwardly from an upper end of a leg member, and connecting means between the first element and the second element.
  • a wicket according to claim 1 wherein the horizontally extending bearing member is adapted to transmit a vertical restraining force to said stack and to bear on the topmost article of the stack for a total distance less than its overall horizontal span.
  • a wicket according to claim 1 wherein the horizontally extending bearing member has a bearing contact span length on the topmost article of the stack less than the linear distance between the paired holes.
  • a wicket according to claim 4 wherein the horizontally extending bearing member is adapted to bear on the topmost article of the stack along a line between the paired holes.
  • a wicket according to claim 1 wherein the horizontally extending bearing member is adapted to bear on the topmost article of the stack only partly on a line between the paired holes.
  • a wicket according to claim 1 wherein the horizontally extending bearing member is adapted to bear on the topmost article of the stack on a locus other than a line between the paired holes.

Landscapes

  • Supplying Of Containers To The Packaging Station (AREA)
  • Packages (AREA)
  • Auxiliary Apparatuses For Manual Packaging Operations (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
US3777930D 1972-04-24 1972-04-24 Shouldered wickets Expired - Lifetime US3777930A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US24661372A 1972-04-24 1972-04-24

Publications (1)

Publication Number Publication Date
US3777930A true US3777930A (en) 1973-12-11

Family

ID=22931415

Family Applications (1)

Application Number Title Priority Date Filing Date
US3777930D Expired - Lifetime US3777930A (en) 1972-04-24 1972-04-24 Shouldered wickets

Country Status (14)

Country Link
US (1) US3777930A (ja)
JP (1) JPS536912B2 (ja)
AR (1) AR201555A1 (ja)
BE (1) BE798642A (ja)
BR (1) BR7302910D0 (ja)
CA (1) CA978157A (ja)
CH (1) CH573332A5 (ja)
DE (1) DE2320505A1 (ja)
FR (1) FR2182487A5 (ja)
GB (1) GB1427398A (ja)
IE (1) IE37554B1 (ja)
IT (1) IT984067B (ja)
NL (1) NL171429C (ja)
SE (1) SE396930B (ja)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918589A (en) * 1974-11-04 1975-11-11 Union Carbide Corp Pivoted wicket bag opening dispenser
US4106734A (en) * 1977-03-29 1978-08-15 Union Carbide Corporation Bag dispenser and holder
US4106733A (en) * 1977-03-29 1978-08-15 Union Carbide Corporation Bag dispenser and holder
US4519504A (en) * 1982-12-29 1985-05-28 Union Carbide Corporation Wicket bag packet
US4541226A (en) * 1982-12-29 1985-09-17 Union Carbide Corporation Packaging method and apparatus
US4595389A (en) * 1984-06-02 1986-06-17 Lemo M. Lehmacher & Sohn Gmbh Maschinenfabrik Stack of detachably-connected bags with punch-out handle-grip openings and process for making same
US5100000A (en) * 1990-04-23 1992-03-31 Packaging Innovations, Inc. Suspendable bag and support structure
US5419437A (en) * 1989-01-12 1995-05-30 Packaging Innovations, Inc. Snap and fill plastic film bags
US5575393A (en) * 1995-07-28 1996-11-19 Tc Manufacturing Co., Inc. Stack of cold welded headerless bags
US5618147A (en) * 1994-11-10 1997-04-08 Battenfeld Gloucester Engineering Co., Inc. Wicket wire holder
US5871115A (en) * 1995-10-27 1999-02-16 Kohn; Albert Article supporting and dispensing apparatus
US6007244A (en) * 1998-07-29 1999-12-28 Packaging Innovations, Inc. Plastic film bag assembly
US6385948B1 (en) * 1999-03-18 2002-05-14 Lemo Maschinenbau Gmbh Method of packaging plastic bags, particularly bags for automated machines, in transport containers
US6676293B2 (en) 2001-09-05 2004-01-13 Imex Discovery Resources, Inc. Vinyl wicket bag

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH084130Y2 (ja) * 1989-12-07 1996-02-07 カシオ計算機株式会社 液晶表示パネル基板用ロールコート装置
EP0790023A3 (en) * 1995-08-30 1998-06-17 Idemitsu Petrochemical Co., Ltd. Dispenser for a packaging bag and a method for producing the same

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US858418A (en) * 1907-01-07 1907-07-02 Percy H Savory Paper for water-closet purposes.
GB457969A (en) * 1935-09-23 1936-12-09 Klas August Widegren Fastener for removably holding toilet paper, memoranda and like sheets
US3640450A (en) * 1970-02-09 1972-02-08 Lieberman Abraham B Wicket bags

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US858418A (en) * 1907-01-07 1907-07-02 Percy H Savory Paper for water-closet purposes.
GB457969A (en) * 1935-09-23 1936-12-09 Klas August Widegren Fastener for removably holding toilet paper, memoranda and like sheets
US3640450A (en) * 1970-02-09 1972-02-08 Lieberman Abraham B Wicket bags

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3918589A (en) * 1974-11-04 1975-11-11 Union Carbide Corp Pivoted wicket bag opening dispenser
US4106734A (en) * 1977-03-29 1978-08-15 Union Carbide Corporation Bag dispenser and holder
US4106733A (en) * 1977-03-29 1978-08-15 Union Carbide Corporation Bag dispenser and holder
US4519504A (en) * 1982-12-29 1985-05-28 Union Carbide Corporation Wicket bag packet
US4541226A (en) * 1982-12-29 1985-09-17 Union Carbide Corporation Packaging method and apparatus
US4595389A (en) * 1984-06-02 1986-06-17 Lemo M. Lehmacher & Sohn Gmbh Maschinenfabrik Stack of detachably-connected bags with punch-out handle-grip openings and process for making same
US5419437A (en) * 1989-01-12 1995-05-30 Packaging Innovations, Inc. Snap and fill plastic film bags
US5100000A (en) * 1990-04-23 1992-03-31 Packaging Innovations, Inc. Suspendable bag and support structure
US5618147A (en) * 1994-11-10 1997-04-08 Battenfeld Gloucester Engineering Co., Inc. Wicket wire holder
US5575393A (en) * 1995-07-28 1996-11-19 Tc Manufacturing Co., Inc. Stack of cold welded headerless bags
US5871115A (en) * 1995-10-27 1999-02-16 Kohn; Albert Article supporting and dispensing apparatus
US6007244A (en) * 1998-07-29 1999-12-28 Packaging Innovations, Inc. Plastic film bag assembly
US6385948B1 (en) * 1999-03-18 2002-05-14 Lemo Maschinenbau Gmbh Method of packaging plastic bags, particularly bags for automated machines, in transport containers
US6676293B2 (en) 2001-09-05 2004-01-13 Imex Discovery Resources, Inc. Vinyl wicket bag

Also Published As

Publication number Publication date
AU5475973A (en) 1974-10-24
IE37554B1 (en) 1977-08-17
CH573332A5 (ja) 1976-03-15
CA978157A (en) 1975-11-18
IE37554L (en) 1973-10-24
SE396930B (sv) 1977-10-10
IT984067B (it) 1974-11-20
FR2182487A5 (ja) 1973-12-07
DE2320505A1 (de) 1973-11-15
GB1427398A (en) 1976-03-10
NL171429C (nl) 1983-04-05
BE798642A (fr) 1973-10-24
JPS536912B2 (ja) 1978-03-13
JPS4948486A (ja) 1974-05-10
NL7305592A (ja) 1973-10-26
BR7302910D0 (pt) 1974-01-03
NL171429B (nl) 1982-11-01
AR201555A1 (es) 1975-03-31

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Legal Events

Date Code Title Description
AS Assignment

Owner name: VISKASE CORPORATION, 6855 WEST 65TH STREET, CHICAG

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:UNION CARBIDE CORPORATION, A CORP. OF NEW YORK;REEL/FRAME:004619/0501

Effective date: 19860201

AS Assignment

Owner name: CONTINENTAL BANK N.A., ILLINOIS

Free format text: SECURITY INTEREST;ASSIGNOR:VISKASE CORPORATION;REEL/FRAME:005132/0012

Effective date: 19890601