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EP0283279A2 - Flexibler Behälter - Google Patents

Flexibler Behälter Download PDF

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Publication number
EP0283279A2
EP0283279A2 EP88302315A EP88302315A EP0283279A2 EP 0283279 A2 EP0283279 A2 EP 0283279A2 EP 88302315 A EP88302315 A EP 88302315A EP 88302315 A EP88302315 A EP 88302315A EP 0283279 A2 EP0283279 A2 EP 0283279A2
Authority
EP
European Patent Office
Prior art keywords
flexible container
folds
fold
tubular body
peak
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.)
Ceased
Application number
EP88302315A
Other languages
English (en)
French (fr)
Other versions
EP0283279A3 (de
Inventor
Donald Colin Tripp
William Watson
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.)
ROBERT L FLEMING Ltd
Original Assignee
ROBERT L FLEMING Ltd
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 ROBERT L FLEMING Ltd filed Critical ROBERT L FLEMING Ltd
Publication of EP0283279A2 publication Critical patent/EP0283279A2/de
Publication of EP0283279A3 publication Critical patent/EP0283279A3/de
Ceased legal-status Critical Current

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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
    • B65D33/16—End- or aperture-closing arrangements or devices
    • B65D33/18—End- or aperture-closing arrangements or devices using adhesive applied to integral parts, e.g. to flaps

Definitions

  • This invention relates to a flexible container.
  • Paper sacks are widely used as containers for a variety of products in industry and agriculture, and it is important that they should be inexpensive, secure for transport and storage, and easily opened when the contents are to be released.
  • a flexible container comprising a tubular body one end of which is closed by a fold pattern produced by forming a pair of side folds one from each side of the tubular body to form a central peak at the end of the body and providing a return fold of said peak to an extent whereby the peak overreaches the bases of the side folds, the fold pattern being releasably secured in position.
  • the releasable securing is preferably by means of an adhesive, for example paste, and the fold pattern provides the opportunity for pasting only a small area while ensuring a stable fold.
  • the adhesive is preferably applied to areas of the side folds which form the return fold.
  • each of the side folds has a base D extending across the tubular body, the body being of flattened width W, in a relationship where D tends to equal (W-50mm)/2.
  • D is not less than (W-100mm)/2.
  • the extent A by which the return fold overreaches the bases of the side folds is at least 30mm.
  • the sack of the illustrated embodiment of the invention has a body 10 which opens to form a tube for receiving silage or other loose material and which is shown folded flat in Figs. 1 to 4.
  • the body 10 is made of paper having a thin lining of waterproof plastics material, and in its flattened form as shown the body 10 has a width W of 555mm.
  • a pair of triangular folds 12 are formed at the corners of the body 10 the folds 12 each having a base 14 which has a length D equal to 250mm long.
  • Each fold 12 is generally in the form of a right-angled isosceles triangle so that the bases 14 extend across the body 10 at right angles to the body's central axis.
  • the triangular folds 12 form between them a peak 18 which is then folded back over the folds 12 to an extent whereby it overreaches the bases 14 by a distance A of 40mm (Fig. 3), and the areas 20 of the return fold shown hatched are pasted and adhered to the areas of the folds 12 and body 10 which they overlie.
  • a cap strip 22 (Fig. 4) can be fitted over the fold pattern, leaving the peak of the return fold exposed, for the purpose of maintaining neatness of the fold pattern and for bearing printed instructions and information.
  • the body 10 can be opened out and filled through the opposite, open, end which is then sealed by stitching or other means.
  • the peak 18 of the return fold is pulled in the direction of arrow B, releasing the return fold by overcoming the effect of the paste.
  • the triangular folds 12 can then be turned down and the contents of the sack removed.
  • the fold pattern provides a secure but easily-releasable closure for the end of the sack and allows a small amount of adhesive to be used.
  • the security of the closure derives from the extent of overreaching of the return fold beyond the bases 14 of the triangular folds 14, allied with the length of these bases 14 proportional to the width of the flattened body 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tubes (AREA)
  • Bag Frames (AREA)
EP88302315A 1987-03-19 1988-03-17 Flexibler Behälter Ceased EP0283279A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878706559A GB8706559D0 (en) 1987-03-19 1987-03-19 Flexible container
GB8706559 1987-03-19

Publications (2)

Publication Number Publication Date
EP0283279A2 true EP0283279A2 (de) 1988-09-21
EP0283279A3 EP0283279A3 (de) 1989-08-09

Family

ID=10614251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88302315A Ceased EP0283279A3 (de) 1987-03-19 1988-03-17 Flexibler Behälter

Country Status (2)

Country Link
EP (1) EP0283279A3 (de)
GB (1) GB8706559D0 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5718514A (en) * 1994-02-07 1998-02-17 Stone Container Corporation Multiwall bag
EP1873093A1 (de) * 2006-06-30 2008-01-02 Decomatic S.A. Flexible Verpackung zum Transport von Gegenständen in pneumatischen Rohrleitungen
US8579507B2 (en) 2009-08-27 2013-11-12 Graphic Flexible Packaging, Llc Reinforced bag

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1381425A (en) * 1921-06-14 Wbappeb
FR640801A (fr) * 1927-09-13 1928-07-23 étui en papier pour le transport, la conservation et l'utilisation rationnelle du coton hydrophile
US3263807A (en) * 1963-03-14 1966-08-02 Gen Foods Corp Package
US4071186A (en) * 1976-06-15 1978-01-31 Bagcraft Corporation Of America Self-closing bag

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1381425A (en) * 1921-06-14 Wbappeb
FR640801A (fr) * 1927-09-13 1928-07-23 étui en papier pour le transport, la conservation et l'utilisation rationnelle du coton hydrophile
US3263807A (en) * 1963-03-14 1966-08-02 Gen Foods Corp Package
US4071186A (en) * 1976-06-15 1978-01-31 Bagcraft Corporation Of America Self-closing bag

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5718514A (en) * 1994-02-07 1998-02-17 Stone Container Corporation Multiwall bag
EP1873093A1 (de) * 2006-06-30 2008-01-02 Decomatic S.A. Flexible Verpackung zum Transport von Gegenständen in pneumatischen Rohrleitungen
FR2903082A1 (fr) * 2006-06-30 2008-01-04 Decomatic Sa Sa Emballage souple de transport sur un reseau pneumatique
US8579507B2 (en) 2009-08-27 2013-11-12 Graphic Flexible Packaging, Llc Reinforced bag

Also Published As

Publication number Publication date
EP0283279A3 (de) 1989-08-09
GB8706559D0 (en) 1987-04-23

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