US3803990A - Carrier packings - Google Patents

Carrier packings Download PDF

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Publication number
US3803990A
US3803990A US00238786A US23878672A US3803990A US 3803990 A US3803990 A US 3803990A US 00238786 A US00238786 A US 00238786A US 23878672 A US23878672 A US 23878672A US 3803990 A US3803990 A US 3803990A
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US
United States
Prior art keywords
edge
length
bag
folded
strip
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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US00238786A
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English (en)
Inventor
H Pedersen
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Individual
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Individual
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Publication date
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Publication of US3803990A publication Critical patent/US3803990A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D33/00—Details of, or accessories for, sacks or bags
    • B65D33/06—Handles
    • B65D33/08—Hand holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/74—Auxiliary operations
    • B31B70/86—Forming integral handles or mounting separate handles
    • B31B70/876—Forming integral handles or mounting separate handles involving application of reinforcement strips or patches; involving reinforcements obtained by folding

Definitions

  • ABSTRACT A carrier packing member of the type having a bag portion with a closed top edge above which the sides of the bag portion continues in a top portion provided with a carrier handle, said top portion being provided with a layer of reinforcing material, said bag sides being joined along an upper fold forming said top edge of the top portion, and said reinforcing layer being enclosed inside the top portion between the bag sides.
  • a method of producing such carrier packing members whereby a strip of reinforcing foil material is continuously laid into a folded length of bag sheet material along the closed fold edge thereof, the strip being introducedtransversely into the foldes length from the open edge thereof by means of strip guiding means projecting into the folded length from the open edge thereof and ending in an inclined guiding edge about which the strip is folded so as to thereafter extend in the longitudinal direction of the folded length along the closed edge thereof, where after the two sides of the folded length are joined by welding along a longitudinal welding line parallel with and and spaced from the closed folded edge of the sheet length, and handle means are provided in or secured to the sheet length portion between said folded edge and said welding line, whereafter single packing members are consecutively separated from the front end of the length by Welding together and cutting the layers of the sheet length along a transverseline.
  • the present invention relates to carrier bags and more specifically to bags or packings of the type having a bag portion with a closed top edge above which the sides of the bag portion continues in a top portion provided with a carrier handle, said top portion being provided with a layer of a reinforcing material.
  • bags or rather packings are usable for many different articles, e.g., rolls of toilet paper or textile products.
  • the bags are made from plastic sheet material with a closed top and open bottom, and these bag members are delivered to the article production factory in which the bags are filled through the bottom opening and closed by welding together or otherwise closing the bottom opening.
  • the top or handle portion of the bag is defined above a horizontal welding line along which the bag sides are welded together.
  • the handle portion is liable to be flabby, so that it is difficult to grasp the handle in an easy manner.
  • the top portion with a reinforcing or stiffening layer of a heavier foil material, and to this end it has been suggested to secure a separate sheet strip to one or both bag sides across the top portion of the bag, but it has been found that in practical production it is difficult to secure these strips in such a manner that they do not along welding lines weaken the bags or by securing them with glue stick safely to the bag sides all over their area. Moreover, with the use of strips secured in this manner it is difficult to ensure that the colour of the bag top is exactly the same as the colour of the remaining bag.
  • the bag sides are joined along an upper fold forming the top edge portion, whereas the reinforcing layer is enclosed inside the top portion between the bag sides.
  • the reinforcing layer or strip can simply be situated inside the top portion without its entire surface being secured thereto and still serve its purpose, viz. to give the top piece a stronger and stifi'er character. Moreover, a deviating colour shade of thestrip will not be visible from out side.
  • An important aspect of the invention concerns the manner of manufacturing this bag member. According to usual production methods, in order to place a material strip along a longitudinal fold of a sheet length in a bag machine, it would be a natural measure to feed the sheet length in its full width to the machine, supply the strip from a supply reel in the correct position adjacent the middle line of the sheet length, and then fold the sheet length about this middle line prior to applying the handle means and providing the transverse welding and cutting lines defining the bag side edges.
  • This important aspect of the invention involves the advantage that the bag machine shall not be adapted to handle a sheet length of full breadth; the length may be supplied to the machine in folded or doubled condition so that also large bags can be made on an ordinary machine,
  • the invention also comprises the particular bag making machine.
  • FIG. 1 is a general perspective view showing schematically a machine for making the bags according to the invention, whilst FIG. 2 is a perspective view of a detail of the machine.
  • the bag making machine shown in FIG. I is basically an ordinary bag machine comprising carrier means 2 for a supply reel 4 for a length 6 of plastics foil, a tensioning device 8 for ensuring a constant tension in the length passing through the machine, and the drawing means (not shown) for driving the length 6 through the machine in an intermittent manner.
  • the sheet or foil length 6 is already in the reel 4 present as a doubled length having a fold edge 10 and an open edge 12.
  • the length is moved stepwise past a welding tool 14 operable to be pressed down against the length 6 by any suitable control mechanism represented by a cylinder 15 so as to weld the two foil layers together along a longitudinal line 16, a cutting and welding tool 18 serving to stamp out a handle hole 20 in the length 6 and at the same time preferably weld the hole edges of the different sheet layers together, and a transverse cutting and welding tool 22 serving to cut off the outermost end portion of the length 6 along a transverse welding line 24 constituting a side edge of each single bag 26 produced by the machine. Underneath the tool 18 there is provided a receptacle 28 for the sheet material stamped out from'the holes 20.
  • the machine so far described is an ordinary bag making machine, and it is deemed unnecessary to describe it in more detail.
  • means are provided for introducing a reinforcing strip between the two foil layers in the .space defined between the edge fold I0 and the welding line l6.
  • These means consist of a transverse guiding member 28 mounted on a rigid machine part 259 (see also FIG. 2) and extending into the space between the two sheet sides from the open edge 12 thereof and ending in an inclined edge 30 the outermost portion of which is situated immediately adjacent the interior side of the fold 10.
  • the arm 28 is provided with parallel upstanding guiding edges 31 and 32 for a reinforcing strip 34 supplied from a reel 36 over a tensioning device 38 and overthe outer edge 40 of the arm 28.
  • This strip may be a heavy single layer foil strip.
  • Holding flanges 42 are mounted on the edge elements 31 and 32 so as to give the guiding arm the character of a flat tube.
  • the strip 34 is bent downwardly about the inclined edge 30 and is in this manner introduced between the bag sides adjacent the fold 10. Since the tools 18 and 22 serve to weld together the bag sides and the strip 34, this strip will be pulled away along with the length 6 so that it is continuously laid into the space between the fold l and the subsequently formed welding line 16.
  • the tension of the foil strip 34 should be adapted in accordance with the tension of the length 6.
  • the distance between the opposed guiding edges 31 and 32 of the arm 28 is somewhat bigger than the width of the strip 34. Due to the inclination of the edge 30 the longitudinal portion of the strip 34 will seek outwardly by the pull excerted therein, and in practice it will be stopped by engaging either the guiding edge 31 or preferably the interior side of the fold however, the exact position of this fold may vary somewhat, so that by making the distance between the edges 31 and 32 broader than the strip the strip is given the opportunity to displace itself according to the actual position of the fold 10.
  • the strip 34 should not necessarily be so wide or placed so that it is welded together with the bag sides aong the line 16.
  • FIG 2 it is shown that parallel to the arm 28 there may be arranged another arm 44 also extending into the space between the two bag sides.
  • This arm (or alternatively one side of the arm 28) may serve as a base or backing element for cooperation with a perforation wheel 45 whereby a perforation line may be provided along one of the bag sides underneath the welding line 16.
  • This will enable the bag to be opened in a convenient manner by the consumer in case the bag bottom is not in known manner made so as to be easily openable.
  • the arm 28 need not be perpendicular to the moving direction of the sheet length, but the edge 30 should have such a direction that the strip 34 by the folding thereabout is thereafter running in the longitudinal direction of the length.
  • the strip be welded to the bag sides along the line 16, and also provide the bag with handle means other than the holes 20 e.g., carrier straps as shown in dotted lines at 25 in FIG. 1.
  • a method of producing carrier packing members comprising the steps of advancing a length of a double, monolaterally folded sheet material past an introduction station, guiding a strip formed reinforcing foil from a position outside the open side edge of the said double sheet length into a delivery position inside the double sheet length adjacent the opposed closed side edge thereof, continuously feeding the foil strip into the moving double sheet length along the closed fold edge thereof so as to thereafter be advanced together with the double sheet length, whereafter, joining the two opposed layers of the double sheet length along a line parallel with and spaced from the closed fold edge of the sheet length, providing carrier handle means in the area between said joining line and the fold edge, and consecutively separating from the end of the double sheet length single carrier packing members by joining and cutting the sheet length layers along a transverse line.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Making Paper Articles (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Auxiliary Devices For And Details Of Packaging Control (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
US00238786A 1971-03-31 1972-03-28 Carrier packings Expired - Lifetime US3803990A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB827171 1971-03-31

Publications (1)

Publication Number Publication Date
US3803990A true US3803990A (en) 1974-04-16

Family

ID=9849295

Family Applications (1)

Application Number Title Priority Date Filing Date
US00238786A Expired - Lifetime US3803990A (en) 1971-03-31 1972-03-28 Carrier packings

Country Status (10)

Country Link
US (1) US3803990A (fr)
BE (1) BE781352A (fr)
DE (1) DE2215227A1 (fr)
DK (1) DK129326B (fr)
FI (1) FI55975C (fr)
FR (1) FR2132234B1 (fr)
GB (1) GB1317375A (fr)
NL (1) NL7204283A (fr)
NO (1) NO137430C (fr)
SE (1) SE398465B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031815A (en) * 1975-04-28 1977-06-28 Henry Verbeke Handle forming apparatus
DE3329203A1 (de) * 1983-08-12 1985-02-28 Unilever N.V., Rotterdam Verpackungsbeutel aus kunststoff
US4597750A (en) * 1984-09-20 1986-07-01 Mobil Oil Corporation Insertion of draw tape strips in draw tape bag manufacture
US4624654A (en) * 1984-09-20 1986-11-25 Mobil Oil Corporation Method and apparatus for manufacturing draw tape bags
US4657528A (en) * 1984-11-23 1987-04-14 Windmoller & Holscher Apparatus for stacking and conveying flat articles, preferably bags made of plastic film
US4881931A (en) * 1987-04-10 1989-11-21 Presto Products, Incorporated Hem seal for draw tape bags
US6574942B1 (en) * 1999-04-28 2003-06-10 Hugo Beck Gmbh & Co. Kg Method for manufacturing a suspension bag with suspension hole
US6729107B2 (en) * 2000-10-20 2004-05-04 Hugo Beck Gmbh & Co. Kg Method for manufacturing a suspension bag with suspension hole
US20110239592A1 (en) * 2008-10-07 2011-10-06 Cadbury Holdings Limited Packaging method and apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3102192C2 (de) * 1981-01-23 1986-07-03 Karl-Heinz Dr. 4802 Halle Sengewald Tragetasche aus thermoplastischer Kunststoffolie

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1671050A (en) * 1924-05-09 1928-05-22 Kaelma Mfg Company Inc Method of making reenforced bags
US3568576A (en) * 1967-07-01 1971-03-09 Michael Lehmacher Method of producing carrier bags

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1671050A (en) * 1924-05-09 1928-05-22 Kaelma Mfg Company Inc Method of making reenforced bags
US3568576A (en) * 1967-07-01 1971-03-09 Michael Lehmacher Method of producing carrier bags

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031815A (en) * 1975-04-28 1977-06-28 Henry Verbeke Handle forming apparatus
US4118912A (en) * 1975-04-28 1978-10-10 Henry Verbeke Method of securing a commodity in a plastic bag
DE3329203A1 (de) * 1983-08-12 1985-02-28 Unilever N.V., Rotterdam Verpackungsbeutel aus kunststoff
US4597750A (en) * 1984-09-20 1986-07-01 Mobil Oil Corporation Insertion of draw tape strips in draw tape bag manufacture
US4624654A (en) * 1984-09-20 1986-11-25 Mobil Oil Corporation Method and apparatus for manufacturing draw tape bags
US4657528A (en) * 1984-11-23 1987-04-14 Windmoller & Holscher Apparatus for stacking and conveying flat articles, preferably bags made of plastic film
US4881931A (en) * 1987-04-10 1989-11-21 Presto Products, Incorporated Hem seal for draw tape bags
US6574942B1 (en) * 1999-04-28 2003-06-10 Hugo Beck Gmbh & Co. Kg Method for manufacturing a suspension bag with suspension hole
US6729107B2 (en) * 2000-10-20 2004-05-04 Hugo Beck Gmbh & Co. Kg Method for manufacturing a suspension bag with suspension hole
US20110239592A1 (en) * 2008-10-07 2011-10-06 Cadbury Holdings Limited Packaging method and apparatus
US8739504B2 (en) * 2008-10-07 2014-06-03 Cadbury Holdings Limited Packaging method and apparatus

Also Published As

Publication number Publication date
FI55975B (fi) 1979-07-31
BE781352A (fr) 1972-07-17
GB1317375A (en) 1973-05-16
NO137430B (no) 1977-11-21
DK129326C (fr) 1975-07-07
FR2132234B1 (fr) 1975-06-20
DK129326B (da) 1974-09-30
FR2132234A1 (fr) 1972-11-17
NL7204283A (fr) 1972-10-03
DE2215227A1 (de) 1972-10-05
FI55975C (fi) 1979-11-12
NO137430C (no) 1979-02-14
SE398465B (sv) 1977-12-27

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