EP1495983A1 - Soupape de remplissage pour sacs - Google Patents

Soupape de remplissage pour sacs Download PDF

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Publication number
EP1495983A1
EP1495983A1 EP04076947A EP04076947A EP1495983A1 EP 1495983 A1 EP1495983 A1 EP 1495983A1 EP 04076947 A EP04076947 A EP 04076947A EP 04076947 A EP04076947 A EP 04076947A EP 1495983 A1 EP1495983 A1 EP 1495983A1
Authority
EP
European Patent Office
Prior art keywords
sack
sheets
sheet
lapping
opening
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Withdrawn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
EP04076947A
Other languages
German (de)
English (en)
Inventor
Alberto Egia Quevedo
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.)
Star Sack SL
Original Assignee
Star Sack SL
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 Star Sack SL filed Critical Star Sack SL
Publication of EP1495983A1 publication Critical patent/EP1495983A1/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Withdrawn legal-status Critical Current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
    • B65D31/00—Bags or like containers made of paper and having structural provision for thickness of contents
    • B65D31/14—Valve bags, i.e. with valves for filling
    • B65D31/142—Valve bags, i.e. with valves for filling the filling port being formed by folding a flap connected to a side, e.g. block bottoms

Definitions

  • This invention refers to a new improved valve for different products packaging sacks and namely for sacks which are automatically filled with different products, normally powder or granular products.
  • the object of the invention is an improved valve designed to that kind of sacks, providing an effective tightness when the said sacks are filled, the said tightness being automatically achieved by fully closing the valve after filling the sack and with the pressure exerted by the load on the wall itself of the sack which has the valve built in, fully preventing that angular points are caused and that air eventually enters in the sack.
  • units of sacks made of paper, polyethylene, propylene or mixed are used, which for this purpose are employed in automatic conventional filling facilities.
  • This kind of sacks has one end closed to be used as the bottom and the other end is also closed although provided with a side opening as a loading mouth through which a pipe coming from the hopper of a dosing packaging machine is introduced to house the product within the sack until filling it and thereafter it is closed.
  • the leaks of product carries dirtiness problems and shortage of the said product, and it is a particular problem when the sack contains poisonous and/or polluting powdery material which can even generate physical and/or environmental damages.
  • the entrance of air from outside through the filling opening can also provoke that the product becomes useless due to unwanted wetness transmitted to it.
  • Another of the techniques used consists in arranging a sheet having a portion housed within the loading mouth of the sack and the other portion protruding outwardly the said mouth.
  • the said sheet is placed in the sack in the non-stop manufacturing process thereof.
  • the improved valve for sacks object of the invention produces a tight closing, which is automatically achieved, being fully closed after filling the sack and with the pressure from the load on the wall of the sack which has incorporated the improved valve object of this invention, completely avoiding leaks and eventual entrance of air within it.
  • the improved valve for sacks object of this invention has the aim of a valve which is basically constituted of two flexible sheets, with a relative arrangement thereof and a characteristic interrelation, which gives, matched with the wall of the sack to which they are joined , a valve adapted for the said application.
  • the proposed valve possesses a so simple structure that it only require two sheets, for example rectangular sheets, arranged one over the other, the lower (which remains more inside the sack) being longer and with its longer end folded and leaning against the higher in an lapping and both sheets being joined to one of the internal walls of the sack by three of its sides (U-shaped), except a fourth which correspond to the said fold where the said lapping is located, having an opening at its higher sheet coinciding with the filling opening of the wall of the sack and both openings remaining joined on their full perimeter.
  • Such a constitution despite it is simple provides fully new results giving a valve which is improved comparing with the well-known in the market because of its advantages as well in the referring to its manufacture as its use.
  • FIG. 1 It is a general view of the improved valve for sacks object of the invention, in which all its components are shown, in closing or resting position.
  • Main sheets 1 and 2 are illustrated which are arranged one over the other, as well as the folding line 3 by which the sheet 2 over folded on the sheet 1 forming the lapping 4.
  • a wall of the sack 5 on the internal face of which is welded or joined the pair of sheets 1, 2 forming the whole valve through the lines 6, 7, 8 (welding beads 11,12) as well as the welding or union 10 of the perimeter of the entrances 9, 9a which have as well the sheet 1 as the wall of the sack 5, respectively.
  • Figure 2. It illustrates a section of the improved valve closed or at rest, by means of which can be seen in same way all the sheets and parts of the invention arranged from above to the bottom: Sheet 2, sheet 1, fold 3, lapping 4 and opening 9, last the wall of the sack 5, welds are not shown.
  • the improved valve for sacks object of the invention are constituted by combining several sheets which are:
  • the set of the sheets 1-2 so arranged and folded one over the other, at one end, is arranged joined to an internal wall of the sack 5, making that the opening 9 coincides as well with the sheet 1 as with the sheet 9a of the wall of the sack 5 which are identical and once they are facing each other, the union of the valve is achieved through the lines 6-7-8 to the wall of the sack 5, all of ti by means of an union in line and shape integral with as well the sheets 1-2 as the wall 5 of the sack, the union being carried out by any conventional system of welding or gluing, depending on the material of the valve and the sack, to thereafter and simultaneously also carry out the union of the entrances facing each other 9 as well of the sheet 1 as of the wall of the sack 5 on the whole perimeter 10, the union being in same way integral and carried out according to the materials uses in each case.
  • the improved valve object of the invention is embodied, which is available to be used for filling the sack, which will be carried out through the openings 9, 9a in order to thereafter passing the filling pipe between the two sheets 1-2 at the area in which are located parallel and in order that when reaching the end where the fold has been made at 3 when introducing the filling pipe, the sides of the welding lines 6 and 8 are coming close to each other due to the pressure of the filling pipe which provokes that the lapping 4 of the sheet 2 rises and is unfolded towards 3 leaving the valve open to let the filling pipe passes.
  • the main advantages of the improved valve for sacks object of this invention mainly refers to its simplicity, as well in the structure of the sheets composing it, in the construction thereof, as in the use this added to the warranty of a perfect tight closing as well for the load as for the air.
  • the opening as the closing can be considered as automatic, since it requires no manual action from the workers, the opening occurring by the pressure of the introduction itself of the conventional loading pipe and the closing being provoked by the pressure of the load itself on the wall of the sack once it is loaded and the loading pipe has been withdrawn.
  • the tightness is greater when greater is the pressure of the load on the wall of the sack itself, which guarantees suitably stacking the sacks on the well-known pallets for storage and carriage, guaranteeing thus the perfect carriage and handling of the sacks with the load.
  • the location of the valve is carried out in a way fully independent on any of the walls of the sack and regardless the shape thereof, all of it depending on the packaging mechanism available or to be used, choosing the location which is best suitable in each case.
  • valve for sacks disclosed makes filling is easier, without any interruption of its process, as well for filling as for tightly closing which do not increase the cost of manufacture and packaging, on the contrary, due to the fact of being automatic, it is not required to use workers to close it and the packaging chain is not stopped.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Basic Packing Technique (AREA)
EP04076947A 2003-07-07 2004-07-07 Soupape de remplissage pour sacs Withdrawn EP1495983A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200301621U ES1055163Y (es) 2003-07-07 2003-07-07 Valvula perfeccionada para sacos.
ES200301621U 2003-07-07

Publications (1)

Publication Number Publication Date
EP1495983A1 true EP1495983A1 (fr) 2005-01-12

Family

ID=29724825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04076947A Withdrawn EP1495983A1 (fr) 2003-07-07 2004-07-07 Soupape de remplissage pour sacs

Country Status (2)

Country Link
EP (1) EP1495983A1 (fr)
ES (1) ES1055163Y (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104843297A (zh) * 2015-05-15 2015-08-19 江阴和宇船舶工程有限公司 一种一次性载人设备负荷检验水袋

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439719A1 (fr) * 1978-10-23 1980-05-23 Jacobone Pansac Sac a soupape etanche a l'eau

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439719A1 (fr) * 1978-10-23 1980-05-23 Jacobone Pansac Sac a soupape etanche a l'eau

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104843297A (zh) * 2015-05-15 2015-08-19 江阴和宇船舶工程有限公司 一种一次性载人设备负荷检验水袋

Also Published As

Publication number Publication date
ES1055163Y (es) 2004-02-01
ES1055163U (es) 2003-10-16

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