US3504841A - Foldable packing bag - Google Patents

Foldable packing bag Download PDF

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Publication number
US3504841A
US3504841A US746850A US3504841DA US3504841A US 3504841 A US3504841 A US 3504841A US 746850 A US746850 A US 746850A US 3504841D A US3504841D A US 3504841DA US 3504841 A US3504841 A US 3504841A
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US
United States
Prior art keywords
bag
extension
side walls
closing flap
side wall
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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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US746850A
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English (en)
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Joseph Bramson
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Individual
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Individual
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Publication date
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Publication of US3504841A publication Critical patent/US3504841A/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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents

Definitions

  • French Patent 1,309,549 discloses a foldable packing bag made of paper or a similar flexible material, and intended to be used for packing textile goods, such as suits and the like.
  • This bag has two flat side walls which are directly connected at their upper edges. At the lower edges, the side walls are interconnected by means of a foldable strip of material forming a substantially flat bottom when it is unfolded.
  • the bag is closed at one of the lateral ends, and has an opening at its other lateral end. This opening may be closed by means of a closing flap attached to one of the side walls, which is provided with a self-adhering layer, and which may be folded back around the opening and stuck to the outer surface of the other side wall.
  • This known packing bag has the disadvantage that it is composed of a plurality of separate parts; in particular, the bottom of the bag and the lateral side wall remote from the opening consist of separate strips, whereby the manufacture of the bag is complicated and expensive.
  • the invention has the object to remove this disadvantage and to provide a packing bag of the above-mentioned kind, of which the construction is considerably simpler, so that it may be mechanically produced in an easy, rapid and nonexpensive way.
  • the foldable bottom of the bag consists of extensions of the two side walls at the lower ends thereof, which have been folded to the inside and stuck to each other along the folding line.
  • the bottom of the bag is not made of a separate strip of material, but the material of the side walls is extended by several inches in excess of the required height, so that the two extensions, each integral with the associated side wall, may be folded to the inside and stuck together at their free edges.
  • the extension of one side wall is somewhat longer than the extension of the other side wall, so that an excessive portion of this extension is obtained on one side. This excessive portion may be folded back with respect to the remaining portion of the same extension and stuck to the edge of the extension of the other side wall.
  • the folded extension of the side wall provided with the closing flap extends to the end of the closing flap.
  • the extension is then stuck together with the closing flap.
  • the material of the extension intended to form one half of the bottom must be separated from the portion stuck to the closing flap in order to unfold the bottom when the bag is put into use. If the two portions of the extension have to be torn loose from each other, the material of the bag may be damaged; moreover, the tearing is not always easily done. For this reason, it is preferred to provide a vertical scoring line or perforation in the extension, so that the portion to be used for the formation of the bottom may be torn loose without difficulties from the portion stuck to the closing flap.
  • the bag in such manner that the two side walls, the two extensions forming the bottom and the closing flap are made of a single integral sheet of the material which is folded at the closed lateral end of the bag, after which the two halves of the sheet are stuck together directly at the upper edges and by means of the folded extensions at the lower edges.
  • FIG. 1 is a plan view of an integral sheet from which a bag according to the invention is made.
  • FIG. 2 shows the same sheet in a further phase of the production.
  • FIG. 3 is a side view of the bag in closed condition.
  • FIG. 4 is a cross-section taken on line IVIV in FIG. 3.
  • the reference numeral 1 indicates an integral sheet of paper for the formation of the preferred embodiment of the packing bag. The several portions of this sheet constitute the elements of the bag in the following manner.
  • Portion 2 becomes the side wall of the bag visible in FIG. 3 and portion 3 becomes the other side wall. Portion 3 is extended at the upper edge to form a strip 4.
  • the strip 4 is folded downwardly as shown in FIG. 2 and provided with an adhering layer, after which the upper edge of portion 2 is stuck to the strip 4 (the portions 2 and 3 being folded together along the folded line 5), so that the two side walls are directly interconnected at the upper edges.
  • Portion 6 is one of the halves of the foldable bottom of the bag and portion 7 is the other half. As appears from FIG. 1 portion 2 is provided at the bottom with a single extension 6 and portion 3 has a corresponding extension 7 and an additional extension 8. When folding the bag the extensions 6 and 7 are folded upwardly along the line 9 and the strip 8 is folded to the inside and provided with an adhesive layer as shown in FIG. 2. Thereafter, the upper edge of the extension 6 is stuck to the strip 8 (after portions 2 and 3 have been folded together along line 5), so that the two side Walls are interconnected by a foldable strip of material forming a substantially flat bottom when unfolded as shown in FIG. 4.
  • the side walls are only interconnected at the top and at the bottom so that a fully accessible opening is formed between the side Walls.
  • this closing flap is formed by portion 10 of the sheet 1 (FIG. 1), which is an extension of side wall 3.
  • the closing flap is folded back along the folding line 11 when the bag is to be closed and stuck to the outer surface of side wall 2.
  • the closed condition of the bag is shown in FIG. 3.
  • a self-adhering layer 12 is applied to the closing fiap 10. If desired, a similar layer may be applied to the outer surface of side wall 2.
  • the end portion 13 of strip 7 which extends up to the edge of flap 10, is stuck to the adjoining bottom part of flap 10 when the selfadhering layer 12 is applied. Thereby, the bag is kept closed to some extent as long as the bag is not in use.
  • the bottom is prevented from unfolding, because the end portion 13 of strip 7 is attached to the lower portion of flap 10. It is, therefore, necessary to separate the part of strip 7 which is to be unfolded from the end portion 13 adhering to flap 10.
  • a vertical scoring line or perforation 14 has been provided at the end of the side walls, so that the two portions of strip 7 may be separated from each other Without damaging or tearing the material of the bag.
  • a handle 15 has been provided in the middle of the interconnected upper edges of side Walls 2 and 3.
  • the strips 6 and 7 constituting the bottom are folded together and the Walls 2 and 3 lie against each other through a substantial portion of their surfaces.
  • the bag has a substantially triangular cross-section as appears from FIG. 4.
  • the bag according to the invention may be produced rapidly and cheaply in a very simple manner by means of an automatic mechanical process.
  • a foldable packing bag made from a single sheet of flexible material, comprising two side walls having a predetermined height, and being interconnected along their top edges and foldably interconnected along one pair of corresponding side edges; a carrying handle centrally attached to the said interconnected top edges; and a closing flap attached to one of the said side walls, provided with a self-adhering layer, and adapted to be folded back and stuck to the outer surface of the other side wall to close the opening between the other pair of corresponding side edges of the said side walls; each of the said side walls being provided at its lower edge with an extension in excess of said predetermined height, said extensions being folded inwardly and interconnected along their free edges so as to form a foldable connecting strip convertible into a fiat bottom by unfolding, the extension of one of the side walls being higher than the extension of the other side wall, the excessive portion of said first-mentioned extension being folded back and stuck to the free edge of said last-mentioned extension.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
US746850A 1967-08-16 1968-07-23 Foldable packing bag Expired - Lifetime US3504841A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB72211U DE1978177U (de) 1967-08-16 1967-08-16 Zusammenfaltbarer verpackungssack.

Publications (1)

Publication Number Publication Date
US3504841A true US3504841A (en) 1970-04-07

Family

ID=6977351

Family Applications (1)

Application Number Title Priority Date Filing Date
US746850A Expired - Lifetime US3504841A (en) 1967-08-16 1968-07-23 Foldable packing bag

Country Status (9)

Country Link
US (1) US3504841A (en:Method)
BE (1) BE713429A (en:Method)
CH (1) CH478694A (en:Method)
DE (1) DE1978177U (en:Method)
DK (1) DK121649B (en:Method)
ES (1) ES134381Y (en:Method)
FR (1) FR1576263A (en:Method)
GB (1) GB1205858A (en:Method)
NL (1) NL6809265A (en:Method)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835845A (en) * 1987-08-04 1989-06-06 Yoshida Kogyo K. K. Parts applicator for slide fasteners
US5015103A (en) * 1990-08-15 1991-05-14 Plastic Packing, Inc. Side loadable bag
US6481793B1 (en) * 1999-05-25 2002-11-19 Horn & Bauer Gmbh & Co. Kg Seat cover for protecting motor vehicle seats
US20030123760A1 (en) * 1999-06-24 2003-07-03 Olin Alan D. Flexible bag with resealable pour spout
US20060291755A1 (en) * 1999-06-24 2006-12-28 Olin Alan D Self-supporting storage bag with resealable pour spout
US20120263399A9 (en) * 2010-09-27 2012-10-18 Alfons Kruse Stand-up bag for pourable goods and method for manufacturing the stand-up bag
CN113830422A (zh) * 2021-09-30 2021-12-24 海盐鑫美印刷有限公司 一种环保包装纸袋

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL257137A (en:Method) *

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL257137A (en:Method) *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4835845A (en) * 1987-08-04 1989-06-06 Yoshida Kogyo K. K. Parts applicator for slide fasteners
US5015103A (en) * 1990-08-15 1991-05-14 Plastic Packing, Inc. Side loadable bag
US6481793B1 (en) * 1999-05-25 2002-11-19 Horn & Bauer Gmbh & Co. Kg Seat cover for protecting motor vehicle seats
US6857779B2 (en) * 1999-06-24 2005-02-22 Alan Olin Flexible bag with resealable pour spout
US20040218839A1 (en) * 1999-06-24 2004-11-04 Olin Alan D. Flexible bag with resealable angled pour spout
US20050036720A1 (en) * 1999-06-24 2005-02-17 Alan Olin Flexible bag with resealable vertical pour spout
US20030123760A1 (en) * 1999-06-24 2003-07-03 Olin Alan D. Flexible bag with resealable pour spout
US7011448B2 (en) 1999-06-24 2006-03-14 Alan D. Olin Flexible bag with resealable vertical pour spout
US7025504B2 (en) 1999-06-24 2006-04-11 Alan D. Olin Flexible bag with resealable angled pour spout
US20060291755A1 (en) * 1999-06-24 2006-12-28 Olin Alan D Self-supporting storage bag with resealable pour spout
US8992085B2 (en) 1999-06-24 2015-03-31 Alan D. Olin Self-supporting storage bag with resealable pour spout
US20120263399A9 (en) * 2010-09-27 2012-10-18 Alfons Kruse Stand-up bag for pourable goods and method for manufacturing the stand-up bag
US9624017B2 (en) * 2010-09-27 2017-04-18 Nordenia Deutschland Halle Gmbh Stand-up bag for pourable goods and method for manufacturing the stand-up bag
CN113830422A (zh) * 2021-09-30 2021-12-24 海盐鑫美印刷有限公司 一种环保包装纸袋

Also Published As

Publication number Publication date
DE1978177U (de) 1968-02-01
GB1205858A (en) 1970-09-23
BE713429A (en:Method) 1968-08-16
FR1576263A (en:Method) 1969-07-25
CH478694A (de) 1969-09-30
ES134381U (es) 1968-04-01
DK121649B (da) 1971-11-08
ES134381Y (es) 1968-08-01
NL6809265A (en:Method) 1969-02-18

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