[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0007181A1 - Kunststoff-Tragtasche mit verstärktem Tragegriffbereich - Google Patents

Kunststoff-Tragtasche mit verstärktem Tragegriffbereich Download PDF

Info

Publication number
EP0007181A1
EP0007181A1 EP79301149A EP79301149A EP0007181A1 EP 0007181 A1 EP0007181 A1 EP 0007181A1 EP 79301149 A EP79301149 A EP 79301149A EP 79301149 A EP79301149 A EP 79301149A EP 0007181 A1 EP0007181 A1 EP 0007181A1
Authority
EP
European Patent Office
Prior art keywords
bag
strips
plastic bag
handle portions
bag according
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.)
Withdrawn
Application number
EP79301149A
Other languages
English (en)
French (fr)
Inventor
Heikki Samuli Suominen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0007181A1 publication Critical patent/EP0007181A1/de
Withdrawn legal-status Critical Current

Links

Images

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

Definitions

  • the present invention relates to a type of plastic bag having reinforced handle portions.
  • the invention is an improvement upon that disclosed in applicant's U. S. Patent No. 4,125,220.
  • the bag disclosed in this patent includes integral handle portions which extend upwardly on either side of the mouth of the bag and are configured in a symmetrical waveform about the center line of the bag. Strips of reinforcing material extend across and are secured to the handle portions of the bags disclosed in this patent, the strips as disclosed having an essentially straight lower boundary edge which does not extend to the side seams of the bag.
  • a principle object of the invention is to provide an improved bag structure having reinforced handle portions which greatly reduce or eliminate any tendency of the bag to fail along the boundary edges of the handle reinforcing strips.
  • Another object of the invention is to provide such an improved bag structure which can be made following the simplified techniques disclosed in applicant's U. S . patent.
  • a pair of opposing bag walls of plastic film materia are provided, joined to each other to form a bottom edge, a pair of side edges and an open mouth.
  • Integral handle portions extend from the bag walls on either side of the mouth and are provided with reinforcing strips extending across the handle portions, the lower boundary edges of the reinforcing strips having an undulating configuration.
  • the undulating confiruation produces an extended length for the edge or joint between the strips and the underlying bag walls, which results in improved overall strength of the bag and a substantially reduced tendency to fail along the lower boundary edge.
  • Figure 1 illustrates applicant's-patented bag structure which includes front and rear opposing bag wall portions 2, 4 formed from portions of a plastic film tubing, a bottom edge 6 formed from a portion of the edge of the flattened plastic film tubing from which the bag is made and side seams or edges 8, 10 formed by an appropriate sealing and cutting technique to attach wall portions 2, 4 to each other and to sever the bag from the flattened film tubing.
  • the bottom of the bag may include an inwardly folded portion, not shown, to facilitate expansion of the bag in use.
  • each handle portion 12 Extending upwardly from and integral with wall portions.2, 4 are a pair of opposing handle portions 12, 14 which may be provided with a hole 16 to facilitate carrying and hanging the bag.
  • the upper edge of each handle portion is shaped in a wave configuration which is essentially symmetrical about the vertical center line of wall portions 2, 4, as illustrated, with the lowest points of the wave configuration being located adjacent edges 8, 10 and the highest portion being located essentially on the center line.
  • the wavelength of the wave configuration corresponds essentially to the width of the bag at its open mouth.
  • Each handle portion 12, 14 is provided with a reinforcing strip or band 18 of suitable material which may be adhesively applied to the handle portions.
  • a reinforcing strip or band 18 of suitable material which may be adhesively applied to the handle portions.
  • the height "hs" of strip 18, as illustrated is chosen to be somewhat less than the overall height "hw" of the wave configuration of handle portions 12, 14.
  • the strip 18 is located on handle portions 12, 14 between the highest and lowest points of the wave configuration so that no portion of the reinforcement material extends to side seams 8, 10.
  • the strips thus have an essentially straight lower boundary edge 20 and an essentially straight upper boundary edge 22, as illustrated.
  • FIGs 2 to 6 illustrate embodiments of the present improvement invention in which the lower boundary edges 24 of reinforcing strips 26 are provided with undulating configurations, as illustrated.
  • bags having reinforcing strips with straight edge boundaries tend to fail under heavy loads.
  • the undulating configurations shown in Figures 2 to 6, however, provide an extended length for the edge or joint between the underlying bag walls and the reinforcing strips.
  • loads applied along the lower boundary edge apparently are supported by a greater length of material than would be the case with straight edges, which leads to improved load carrying ability.
  • Whatever may be the precise mechanic bags with undulating edge boundaries 24 are stronger than those with straight edge boundaries 20, 22.
  • reinforcing strips are provided which are greater in overall vertical height than the overall height of the wave configuration of handle portions 12, 14. This allows the reinforcing strips 26 to extend completely around the mouth of the bag from one side edge to the other.
  • Edge 24 comprises a plurality of essentally sinusoidal undulations of smaller amplitude than the wave configuration of handle portions 12, 14; however, other non-sinusoidal undulations may be used in all embodiments of the invention, so long as the effect is to increase the overall length of lower boundary edge 24. Although smoothly changing undulations are preverred, even triangular undulations will provide some advantage.
  • lower boundary edges 24 having one, two and three undulations are illustrated; however any reasonable number may be used in the invention.
  • the overall width of strips 16 and the wave lengths of the undulations are chosen so that each lower boundary edge 24 extends only to locations on bag walls 2, 4 and handle portions 12, 14 which are between edges 8, 10. That is, as in the case of the bag illustrated in Figure 1, no portion of the reinforcement material extends to side edges 8, 10.
  • reinforcing strip 26 is provided with a lower boundary edge 24 and an upper boundary edge 28, each edge being configured in a large number of smaller undulations than those of Figures 3 to 5.
  • the reinforcing strips are located entirely within the handle portions 12, 14.
  • FIG. 7 illustrates schematically the process by which bags according to the invention may be made.
  • a tube 30 of suitable plastic film material is flattened, as illustrated, to facilitate the sequential formation of a large number of bags.
  • Reinforcing strips 26 are adhesively secured to either side of the flattened tubing at an essentially axial location.
  • the wave configuration of handle portions 12, 14 is then cut through the tubing and reinforcing strips and holes 16 are at least,partially formed.
  • the severed portions of the flattened tubing are then separated and seams 8, 10 are formed by appropriate heat sealing equipment.
  • the bags are then separated along seams 8, 10.
  • this process may be accomplished manually using hand controlled implements, or automatically as disclosed in serial number 920,613.
  • the bags according to the invention are particularly suited for use as shopping bags and, due to their unique features and resultant durability, are adapted for repeated use by the initial purchaser.
  • the bags may be made in a variety of sizes having a variety of thicknesses of the plastic film material, as necessary to accomodate contents of varying sizes and weights.
  • the handle portions are sufficiently flexible to permit the bags to be hung thereby with contents already in the bag, for display or storage. In some cases, the bag may be hung by one handle only, to permit the contents to be removed for inspection or use without removing the bag from its hanger.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Prostheses (AREA)
EP79301149A 1978-06-15 1979-06-15 Kunststoff-Tragtasche mit verstärktem Tragegriffbereich Withdrawn EP0007181A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI781908A FI58469C (fi) 1978-06-15 1978-06-15 Koepkasse av plastmaterial
FI781908 1978-06-15

Publications (1)

Publication Number Publication Date
EP0007181A1 true EP0007181A1 (de) 1980-01-23

Family

ID=8511808

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79301149A Withdrawn EP0007181A1 (de) 1978-06-15 1979-06-15 Kunststoff-Tragtasche mit verstärktem Tragegriffbereich

Country Status (4)

Country Link
EP (1) EP0007181A1 (de)
DK (1) DK252379A (de)
FI (1) FI58469C (de)
NO (1) NO791990L (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877335A (en) * 1988-12-19 1989-10-31 Cello Bag Company, Inc. Carton look plastic bag with ear handles
US4989993A (en) * 1988-12-19 1991-02-05 Barnard Delbert J Carton look plastic bag with ear handles
US6139186A (en) * 1998-10-07 2000-10-31 First Brands Corporation Bag having improved tie features
WO2006097104A2 (en) * 2005-03-15 2006-09-21 Etradan Bs Aps Bag provided with reinforcing connection seams
GR20180100058A (el) * 2018-02-14 2019-09-25 Τιμηπλαστ Α.Β.Ε.Ε. Πλαστικη τσαντα μεταφορας με τετραγωνη λαβη

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH445037A (de) * 1967-01-04 1967-10-15 Riwisa Ag Tragtasche aus thermoplastischem Kunststoff und Verfahren zu ihrer Herstellung
FR1579864A (de) * 1967-09-12 1969-08-29
US4125220A (en) * 1976-12-03 1978-11-14 Suominen Heikki S Plastic shopping bag having a reinforced handle portion

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH445037A (de) * 1967-01-04 1967-10-15 Riwisa Ag Tragtasche aus thermoplastischem Kunststoff und Verfahren zu ihrer Herstellung
FR1579864A (de) * 1967-09-12 1969-08-29
US4125220A (en) * 1976-12-03 1978-11-14 Suominen Heikki S Plastic shopping bag having a reinforced handle portion

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4877335A (en) * 1988-12-19 1989-10-31 Cello Bag Company, Inc. Carton look plastic bag with ear handles
US4989993A (en) * 1988-12-19 1991-02-05 Barnard Delbert J Carton look plastic bag with ear handles
US6139186A (en) * 1998-10-07 2000-10-31 First Brands Corporation Bag having improved tie features
US6565794B1 (en) 1998-10-07 2003-05-20 The Glad Products Company Bag having improved tie features
WO2006097104A2 (en) * 2005-03-15 2006-09-21 Etradan Bs Aps Bag provided with reinforcing connection seams
WO2006097104A3 (en) * 2005-03-15 2006-11-09 Etradan Bs Aps Bag provided with reinforcing connection seams
GR20180100058A (el) * 2018-02-14 2019-09-25 Τιμηπλαστ Α.Β.Ε.Ε. Πλαστικη τσαντα μεταφορας με τετραγωνη λαβη

Also Published As

Publication number Publication date
NO791990L (no) 1979-12-18
FI58469B (fi) 1980-10-31
FI58469C (fi) 1981-02-10
FI781908A (fi) 1979-12-16
DK252379A (da) 1979-12-16

Similar Documents

Publication Publication Date Title
CA1248060A (en) Thermoplastic bag pack
US4125220A (en) Plastic shopping bag having a reinforced handle portion
US4524459A (en) Square ended bag
US4557384A (en) Pad of plastic bags
US4877336A (en) Bottom loaded duplex bag having a handle and method of making same
US4453370A (en) Square ended bag
CA1235674A (en) Thermoplastic bag pack
US4854733A (en) Portable packing bag having a two section loop handle
US4550439A (en) Plastic bag with carrying handle
US4618992A (en) Bag convertable to place mat
US4476979A (en) Thermoplastic bag pack
US4252269A (en) Plastic bag with carrying handle
EP0254256B1 (de) Beutel
US4096987A (en) Reinforced paper bag
US6299351B1 (en) Side gusset bag with convenient carry handle
EP0369710A1 (de) Plastiktasche mit Doppelfach
US6196717B1 (en) Folded thermoplastic bag structure
US4813792A (en) Hand-grip for thermoplastic draw tape handles for thermoplastic bags
CA2086477A1 (en) Shrink bag with integral handle
JPH04226607A (ja) ループ状のハンドルを有するバッグ
EP0007181A1 (de) Kunststoff-Tragtasche mit verstärktem Tragegriffbereich
US4174657A (en) Method of forming a plastic shopping bag having a reinforced handle
US4834553A (en) Plastic film package with a hanger
US3358904A (en) Plastic bags
EP1176104A2 (de) Tasche mit einem Handgriff für das Verpacken von Schüttgütern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE CH DE FR GB IT LU NL SE

17P Request for examination filed
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19810524