EP0047539A1 - Sac en matière tissé pour matériel en vrac et procédé pour sa fabrication - Google Patents

Sac en matière tissé pour matériel en vrac et procédé pour sa fabrication Download PDF

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Publication number
EP0047539A1
EP0047539A1 EP81200842A EP81200842A EP0047539A1 EP 0047539 A1 EP0047539 A1 EP 0047539A1 EP 81200842 A EP81200842 A EP 81200842A EP 81200842 A EP81200842 A EP 81200842A EP 0047539 A1 EP0047539 A1 EP 0047539A1
Authority
EP
European Patent Office
Prior art keywords
container
ribbon
seamed
portions
sheet
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Withdrawn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
EP81200842A
Other languages
German (de)
English (en)
Inventor
Giorgio Cipelli
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 EP0047539A1 publication Critical patent/EP0047539A1/fr
Withdrawn legal-status Critical Current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
    • B65D88/00—Large containers
    • B65D88/16—Large containers flexible
    • B65D88/1612—Flexible intermediate bulk containers [FIBC]
    • 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
    • B31B70/864—Mounting separate handles on bags, sheets or webs

Definitions

  • the present invention relates to a flexible-fabric sack container for loose material, as well as the process for the manufacture thereof.
  • a type of container includes, for example, four han dles, made of ribbon of proper strength, which are fixed to the container body by means of seams which run along four vertical edges of the container.
  • such handles clearly have the merit of allowing the stable lifting of the container, and moreover they allow to limit very much the height of the container during its lifting.
  • just their number, together with their mode of attachment to the container body shows this solution as rather complicated and expensive, apart from the fact that they strongly stress the fabric of the container, with subsequent danger of tearing.
  • Another known type of container in turn, includes a small string for closing the top of the container, which string, once drawn and tied in the closed position, provides the container with a kind of neck, around which a loop-shaped ribbon constituting the gripping member for the lifting apparatus may be tightened and remain firmly attached.
  • This solution is cer tainly simpler and cheaper and avoids dangerous stresses of the container fabric, but, on the other hand, it has the drawback of showing torsional and oscillato ry instability and causing a great height of the container when lifted, which height is a bar for some uses thereof.
  • the object of the present invention is to realize a flexible-fabric sack container for loose material, which adds the qualities of simplicity and low cost to those of stability and reduced height and, above all, is made in such a way as to avoid any risk of breakage due to excessive stresses at the points of attachment of the gripping members.
  • this object has now been attained by a container characterized in that it compri ses a single length of reinforced ribbon seamed to the container body along two opposite vertical sides and below the container and provided with ends folded in the form of handles.
  • this is provided for the manufacture of said container a new and original process, which is characterized in that it compri ses the folding of a sheet of flexible fabric to a dou ble thickness, the seaming of a single length of reinforced ribbon to both overlapped edges of said folded sheet firstly along one and then along the other of the two open sides perpendicular to the folding line of the sheet, said ribbon having the two ends folded and, in their turn, seamed to preceding portions of the ribbon so as to constitute a pair of lifting handles, and the management of the folded and seamed sheet up to the provision of a sack-shaped container having said ribbon seamed along two opposite vertical sides and under the bottom of the container body.
  • a sack-shaped container formed by a body of flexible fabric 1, constituted by a single suitably folded, seamed and finally managed initial sheet.
  • the container body substantially includes two verti cal walls 2 arranged face-to-face, a bottom wall 3 and two triangular portions 4 turned below the bottom wall 3.
  • the lateral edges of the two vertical walls 2 are joined together by seaming at the two sides of the ap proached edges (Fig. 2), a single length of ribbon of reinforced fabric 5, which also joins together adjacent fabric edges at said triangular portions 4, thereby for ming a short connecting bridge 6 between the latter (Figs. 2 to 4).
  • the reinforced ribbon 5 is thus connec ted to the container body in such a way as to run along two opposite vertical sides thereof and to pass also below the container bottom.
  • Said reinforced ribbon also forms two lifting handles 7 (Fig. 1), which are merely two end portions of the same ribbon, which have been folded as a loop and seamed between preceding portions of the ribbon and corresponding portions of the approached edges of the vertical walls of the container (Fig. 5).
  • the ribbon and the handles thus form a single entity, which allows the lifting of the container by the usual mechanical lifting device, while avoiding excessive stresses of the. container fabric and, as a matter of fact, supporting the container from below and thus increasing its stress strength.
  • a container such as that of Figs. 1 to 5 may be obtained by following a process of the type illustrated in Figs. 6 to 10.
  • Such a process provides that an initial sheet of flexible fabric, illustrated in Fig. 6 and indicated therein by the reference number 1 corresponding to the body of the container, is folded to a double thickness along a transversal folding line 8, as shown in Fig. 7.
  • a single length of ribbon of reinforced fabric 5 is then seamed (with a seaming line 9) around and along the two approached edges of each of the two open sides perpendicular to the folding line 8 (Figs. 8 and 9), thus forming a short connection bridge 6 between the two seamed sides (Figs.
  • the so folded and seamed sheet 1 is finally managed in such a way as to give rise to the shape of the sack container of Fig. 1.
  • the ma nagement consists in moving the two folded parts of the initial sheet away from one another, passing the inner part (as looking at Fig. 8) to the other side of the U-like path of the ribbon 5 and then pushing upwards the lower part of the body 1 with the relative ribbon 5 so as to provide the container with the widened and ribbon-reinforced bottom, which is illustrated in Figs. 1 to 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
EP81200842A 1980-09-10 1981-07-23 Sac en matière tissé pour matériel en vrac et procédé pour sa fabrication Withdrawn EP0047539A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2456480 1980-09-10
IT24564/80A IT1132725B (it) 1980-09-10 1980-09-10 Contenitore a sacco in tessuto flessibile per materiale sfuso e procedimento per la sua fabbricazione

Publications (1)

Publication Number Publication Date
EP0047539A1 true EP0047539A1 (fr) 1982-03-17

Family

ID=11213991

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200842A Withdrawn EP0047539A1 (fr) 1980-09-10 1981-07-23 Sac en matière tissé pour matériel en vrac et procédé pour sa fabrication

Country Status (2)

Country Link
EP (1) EP0047539A1 (fr)
IT (1) IT1132725B (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227928A (en) * 1989-02-10 1990-08-15 Simon Hugh Miles A holdall for a cement bag
US5738619A (en) * 1993-09-02 1998-04-14 Bulk Lift International Incorporated Method of manufacturing bulk bags
FR2943996A1 (fr) * 2009-04-02 2010-10-08 Sendin Sac de manutention pour fers crosses

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204052C (fr) *
GB821177A (en) * 1956-04-11 1959-09-30 Gen Aniline & Film Corp Single powder photographic developers

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE204052C (fr) *
GB821177A (en) * 1956-04-11 1959-09-30 Gen Aniline & Film Corp Single powder photographic developers

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227928A (en) * 1989-02-10 1990-08-15 Simon Hugh Miles A holdall for a cement bag
US5738619A (en) * 1993-09-02 1998-04-14 Bulk Lift International Incorporated Method of manufacturing bulk bags
FR2943996A1 (fr) * 2009-04-02 2010-10-08 Sendin Sac de manutention pour fers crosses
WO2010112744A3 (fr) * 2009-04-02 2011-01-06 Comsider Sac de manutention

Also Published As

Publication number Publication date
IT8024564A0 (it) 1980-09-10
IT1132725B (it) 1986-07-02

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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 DE FR GB NL

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19830224