EP2204323B1 - Wrapping machine - Google Patents
Wrapping machine Download PDFInfo
- Publication number
- EP2204323B1 EP2204323B1 EP09180430A EP09180430A EP2204323B1 EP 2204323 B1 EP2204323 B1 EP 2204323B1 EP 09180430 A EP09180430 A EP 09180430A EP 09180430 A EP09180430 A EP 09180430A EP 2204323 B1 EP2204323 B1 EP 2204323B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- product
- transferring
- wrapping
- machine according
- unit
- 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.)
- Active
Links
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 description 23
- 239000004033 plastic Substances 0.000 description 23
- 230000001788 irregular Effects 0.000 description 6
- 230000009977 dual effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000750 progressive effect Effects 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
- B65B11/00—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material
- B65B11/008—Wrapping, e.g. partially or wholly enclosing, articles or quantities of material, in strips, sheets or blanks, of flexible material by webs revolving around articles moved along the axis of revolution
Definitions
- the invention relates to machines for wrapping products with a film of extendible plastics.
- the invention refers to a wrapping machine arranged for wrapping a film around elongated products that rest on a small number of rests of limited dimensions, for examples products of irregular shape or of curve shape supported at opposite ends by respective supports.
- Wrapping machines are known that are provided with a vertical ring that is rotatable around a horizontal rotation axis and supporting a reel of extendible plastics film and a corresponding unwrapping group.
- Such machines include a horizontal conveying plane that extends through the vertical ring and on which are moved, along a supplying direction parallel to the aforesaid rotation axis, products or groups of products that have to be wrapped with the film.
- the film of plastics is unwound from the reel by the unwrapping group and is wound around the product so as to form a series of plaited bands or strips, owing to the combination of rotation movements of the vertical ring, that supports the reel of film, and linear movement of the product in the supplying direction.
- Some machines are further set up for laying on the product or on the group of products a covering sheet on which the film of extendible plastics is subsequently wrapped.
- the covering sheet which is also made of plastics, separates and insulates more effectively the product from the external environment.
- the conveying plane generally consists of two conveyors, for example two conveyor belts or mats, that are aligned with one another and separated by a gap or an interruption at the vertical ring to enable the film to be wrapped around the objects.
- the width of the gap i.e. the distance between the conveyor upstream and the conveyor downstream, depends on the width of the reel of film.
- Such wrapping machines have the drawback of being able to wrap with film of plastics only elongated products that are able to exceed the aforesaid separation gap between the two conveyors, i.e. products that rest for almost the entire extend on the conveyors and that at the same time have a length that is greater than the width of the gap.
- Products having a length that is the equivalent to that of the width of the gap and/or products that rest on a small number of rests of limited dimensions, for example products of an irregular shape or of curve shape arranged at opposite ends on respective supports, are not in fact able to get over the gap and move from the conveyor upstream to the conveyor downstream and vice versa.
- United States patent US 4524568 illustrates a wrapping machine with a vertical rotating ring comprising an inlet conveyor, a wrapping conveying group, a distributing mechanism of the film of plastics supported by the rotating ring and an outlet conveyor.
- the wrapping conveying group is interposed between the supplying conveyor and the outlet conveyor, at the distributing mechanism of the film, and comprises an upper conveyor and a lower conveyor that are superimposed on one another.
- the upper conveyor supports and moves the load to be wrapped, whilst the lower conveyor receives and moves the film being wrapped.
- the film can be wrapped continuously around the load that moves from the supplying conveyor to the outlet conveyor through the rotating ring.
- the portion of film supported and moved by the lower conveyor disengages from the latter and adheres elastically to the lower portion of the load, previously abutting on the upper conveyor.
- the film detaches from the lower conveyor and adheres to the load, passing through a suitable passage between the conveying group and the outlet conveyor.
- This wrapping machine is not, however, able to wrap appropriately curved products, i.e. products have an arched shaped with the convex part facing upwards.
- the conveying group in fact prevents the film being wrapped effectively around the lower portions of the product that are more distant from the aforesaid conveying group. In this case, in fact, owing to the distance, the only elasticity of the plastics does not enable the film, which disengages from the lower conveyor, to adhere firmly to the lower portion of the product.
- An object of the present invention is to improve the machines for wrapping products with a film of extendible plastics. Another object is to make a machine that enables products to be wrapped with a film of extendible plastics continuously and completely that rest on a small number of rests of limited dimensions, in particular products with an irregular and/or curved shape arranged on opposite ends on respective supports.
- a further object is to obtain a machine for wrapping with a film of extendible plastics, and possibly with a covering sheet, products having an arched shape so as to ensure an adhering and stable wrapping.
- a wrapping machine comprising a wrapping unit for wrapping with a film a product, in particular a curved elongated product, first conveying means and second conveying means placed respectively upstream and downstream of said wrapping unit for moving said product along a supplying direction, and transferring means interposed between said conveying means for moving said product through said wrapping unit, characterised in that said transferring unit comprises transferring means that is movable at least between a retracted position, in which it does not interact with said film wrapped on said product, and an extended position, in which said transferring means supports and moves said product through said wrapping unit.
- the transferring means in the extended position enables the supports, or rests, of the product to pass between the first conveying means and the second conveying means through the wrapping unit without the need to interrupt wrapping.
- the product is slidably supported by first movement means, fixed to a supporting frame of the transferring unit, and by second movement means, fixed to a carriage of the transferring means that is slidably mounted on the supporting frame.
- the transferring means comprises abutting means that is movable between an abutting position, in which it protrudes from the carriage to engage the moving product, and a disengaging position, in which said abutting means is inside the carriage so as not to interact with the product.
- the product when engaged by the abutting means pushes the transferring means into the extended position.
- the transferring means further comprises slides around which the film wraps when the transferring means moves the product through the wrapping unit.
- the slides enable the film to disengage easily from the transferring means and to adhere to the product when the aforesaid transferring means is returned to the retracted position and/or when the product is advanced with respect thereto.
- the transferring means does not interfere with wrapping of the film around the product.
- This enables, in the case of curved products, in particular products having an arched shape with the convex part facing upwards, the film to be wrapped effectively also around the lower portions of the product, said lower portions being further from the conveying means, so as to obtain compact and uniform wrapping along the entire length of the product.
- the product can be moved along the supplying direction and the film can be wrapped at high speed.
- the wrapping machine 1 of the invention arranged for wrapping a product 100 with a film 50 of extendible plastics unwound from a reel 20.
- the product 100 in particular with an elongated and curved shape with the convex part facing upwards, rests on opposite ends 100a, 100b, on respective supports 101, 102.
- a front end 100a rests on one or more front supports 101
- a back end 100b rests on one or more back supports 102.
- the product can rest directly on the ends 100a, 100b.
- the product 100 can include a single curved element or a plurality of curved elements that are superimposed and/or placed side by side to be packaged together.
- the machine 1 comprises a wrapping unit 2 arranged for unwrapping the film 50 from the reel 20 and wrapping the film 50 in strips or bands superimposed on the product 100.
- the wrapping unit 2 which is of known type, comprises a wrapping ring 21, arranged vertically and supported rotatably by a frame 22 so as to rotate, in use, around a horizontal axis.
- the ring 21 supports the reel 20 and a group of unwrapping and tensioning rollers 23 of the film 50.
- the unwrapping and tensioning rollers 23 are for example of motorized type, that are commanded so as to adjust an unwrapping speed of the film 50 during wrapping thereof onto the product 100, typically in function of the shape of the latter.
- the machine 1 comprises first conveying means 3 and second conveying means 4 placed respectively upstream and downstream of the wrapping unit 2 to support and move the product 100 along a supplying direction T on a substantially horizontal movement plane H.
- the first conveying means 3 and the second conveying means 4 are spaced away from one another at the wrapping unit 2.
- the first conveying means 3 and the second conveying means 4 respectively comprise a first conveyor and a second conveyor, provided with respective conveying straps or belts closed in a loop and driven by respective motors.
- the machine 1 further includes a transferring unit 5 interposed between the first conveyor 3 and the second conveyor 4, at the wrapping unit 2, for supporting and moving the product 100 through the wrapping ring 21.
- the transferring unit 5 is positioned next to the first conveyor 3 and comprises a supporting structure 15 to which first movement means 8, 9 and transferring means 7 are fixed.
- the first movement means 8, 9 and the transferring means 7 define a supporting plane S that is substantially coplanar with the movement plane H.
- the first movement means 8, 9 comprises a pair of conveying chains or belts arranged parallel to one another and spaced apart from one another, on opposite sides of the supporting structure 15.
- the first movement means comprises a first conveying chain 8 and a second conveying chain 9, each of which including, for example, a pair of chain elements, wrapped in a closed loop around respective cogged wheels.
- the first conveying chain 8 and the second conveying chain 9 are driven through a drive shaft 19 by a first motor 17, for example an electric motor, such as to move the product 100 in the supplying direction T.
- a first motor 17 for example an electric motor, such as to move the product 100 in the supplying direction T.
- the transferring means 7 is mounted slidably on the supporting structure 15 so as to be movable along the supplying direction T, between a retracted position A and an extended position B.
- the transferring means 7 In the retracted position A the transferring means 7 is positioned inside the supporting structure 15, so as not to interact with the film 50, being wrapped on the product 100 during operation of the machine 1.
- the transferring means 7 In the extended position B the transferring means 7 is elongated, protruding from the supporting structure 15 and brought near the second conveyor 4 to enable the product 100 to pass onto the latter and at the same time to enable the film 50 to slide, as shown further on in the description.
- the transferring means 7 comprises a carriage 10 mounted slidably onto two guides 16 fixed to the supporting structure 15 and positioned between the first conveying chain 8 and the second conveying chain 9.
- the carriage 10 is moved along the supplying direction T by first driving means 11 fixed to the supporting structure 15.
- the first driving means 11 comprises, for example, a linear actuator, for example a dual-effect pneumatic cylinder.
- the linear actuator 11 can be of the hydraulic or electric type.
- second movement means 12, 13 is connected that is suitable for slidably supporting the product 100 along the supplying direction T.
- the second movement means comprises a first conveying belt 12 and a second conveying belt 13, arranged parallel to one another and spaced apart on opposite sides of said carriage 10.
- the first conveying chain 8, the second conveying chain 9, the first conveying belt 12 and the second belt define the supporting plane S.
- the first conveying belt 12 and the second conveying belt 13 are mounted free to rotate and are moved by the same product 100, moved in the supplying direction T by the first movement means 8, 9.
- first conveying belt 12 and the second conveying belt 13 can be motorized and driven by a respective electric motor.
- the transferring means 7 also comprises abutting means 14 arranged for abutting on the product 100 during movement thereof in the advancing orientation K such that the same product 100 pushes the transferring means 7 from the retracted position A to the extended position B, as explained further on in the description.
- the abutting means comprises an abutting element 14, which is L-shaped and rotatably fixed to the carriage 10.
- the abutting element 14 is movable between an abutting position C and a disengaging position D.
- the abutting position C the abutting element 14 protrudes from the carriage 10, above the supporting plane S, so as to be engaged by a frontal portion of the product 100.
- the arresting element 14 is rotated inside the carriage 10, below the supporting plane S, such as to enable the product 100 to slide freely.
- the arresting element 14 is driven between the abutting position C and the disengaging position D by second driving means 18 fixed to the carriage 10.
- the second driving means 18 comprises, for example, a respective linear actuator, for example a dual-effect pneumatic cylinder.
- the linear actuator 18 can be of hydraulic or electric type.
- the carriage 10 is provided below with slide means 31, 32 arranged for facilitating the sliding and the disengagement of the film 50 from the transferring means 7 during operation of the machine.
- the slide means comprises a first slide 31 and a second slide 32 positioned respectively below the first conveyor belt 12 and below the second conveyor belt 13.
- Each slide 31, 32 comprises a first arched portion 31a, 32a, provided at an outer end of the carriage 10 facing the second conveyor 4, and a second substantially flat portion 31b, 32b that extends along the entire length of the aforesaid carriage 10.
- the procedure of wrapping the curved product 100 by the wrapping machine 1 of the invention provides a plurality of successive operating steps.
- an initial step in which the product 100 is advanced by the first conveyor 3 towards the wrapping unit 2, the transferring means 7 is in the retracted position A and the abutting means 14 is in the abutting position C so as to be contacted by the front support 101 ( Figure 11 ).
- the product 100 moved with a continuous linear motion by the first conveyor 3 and by the first movement means 8, 9 of the transferring unit 5, pushes the transferring means 7 towards the wrapping ring 21.
- the first driving means 11 cooperates with the product 100 in the movement towards the outside of the transferring means 7.
- the pneumatic cylinder 11 is supplied with a pressure that is such as to enable the product 100 to move the transferring means 7 whilst exercising a minimum thrust.
- the wrapping ring 21 is rotated so as to wrap with the film 50 the front end 100a of the product 100 and, partially, the front support 101 ( Figure 12 ).
- the film 50 also wraps below on the slides 31, 32 of the transferring means 7.
- the transferring means 7 When the transferring means 7 is moved in the extended position B ( Figure 13 ), the abutting means 14 is rotated in the disengaging position D to enable the front support 101 of the product 100 to be transferred to the second conveyor 4.
- the transferring means 7 When the front support 101 is located completely on the second conveyor 4, the transferring means 7 is returned to the retracted position A, by driving the first driving means 11 in an orientation opposite the advancing orientation K ( Figure 14 ).
- the film 50 slides on, and disengages from, the slides 31, 32 and adheres to the product 100 owing to the elasticity of the plastics that have been previously stretched by the unwrapping and tensioning rollers 23 of the wrapping unit 2.
- the transferring means 7 is maintained in the retracted position A so as to enable the film 50 to wraps freely around the product 100 ( Figure 15 ) so as to adhere to the latter with the necessary force. This is also made possible by virtue of the unwrapping and tensioning rollers 23 that are motorized and suitably controlled.
- the film 50 is cut and separated from the reel 20 and the free flap that is thus obtained is made to adhere to the product 100 with known means that are not illustrated in the figures ( Figure 19 ).
- the strips of film 50 wrapped on the slides 31, 32 slide on the latter and adhere to the product 100, the slides 31, 32 being guided by the arched portions 31a, 31b of said slides 31, 32. More precisely, the strips of film 50 pass through a gap located between the transferring means 7, also in the extended portion B, and the second conveyor 4.
- the film 50 of plastics is wrapped continuously and regularly around the product 100 whilst the product 100 moves in the supplying direction T, without the need for interventions by operators and maintaining the same wrapping speed used for regular products, the entire extend of which rests on the conveyors.
- the transferring means 7, in the extended position B enables the supports to be transferred from the first conveyor 3 to the second conveyor 4 and vice versa.
- the transferring means 7 moved in the retracted configuration A enables the strips of film 50 wrapped on the slides 31, 32 to slide and disengage, and adhere to the product 100, in particular to a lower portion of the latter.
- FIG. 20 With reference to figures 20 and 21 , another embodiment of the wrapping machine 1 is illustrated that differs from the previously disclosed embodiment through the fact that it comprises means for positioning a covering sheet 60 on the product 100.
- the machine 1 comprises delivering means 40 fixed to the top of a second frame 42 and arranged for unwrapping the covering sheet 60 from a respective reel 61.
- a first connecting unit 25 is interposed between the first conveyor 3 and the transferring unit 5, almost below the delivering means 40, for supporting and moving the product 100 and simultaneously retaining an initial flap 60a of the covering sheet 60 and enabling the initial flap 60a to wrap around the front end 100a of the product 100.
- the transferring unit 5 is substantially interposed between the second frame 42 and the first frame 22 of the wrapping unit 2.
- the first connecting unit 25 which is of known type and is therefore not disclosed in detail in the figures, comprises a first fixed portion 26 provided with advancing means of the product 100, such as conveyor belts or chains, and a first movable portion 27, which is also provided with respective advancing means of the product 100.
- the first movable portion 27 is driven by third driving means 28 between a raised position E and a lowered position F.
- the first movable portion 27 In the raised position E the first movable portion 27 is substantially vertical and spaced away from the transferring unit 5 so as to make an opening on the movement plane H for the descent of the covering sheet 60.
- the first movable portion 27 is substantially horizontal and aligned on the first fixed portion 26 and on the transferring unit 5 so as to enable the product 100 to be transferred from the first conveyor 3 to the transferring unit 5.
- one or more first rollers 29 arranged on a free end of the first movable portion 27 retain the covering sheet 60 against the supporting structure 15 to enable the initial flap 60a to wrap around the front end 100a of the product 100, as explained further on in the description.
- the machine 1 Downstream of the wrapping unit 2 the machine 1 comprises folding means 45 fixed to a third frame 43 and arranged to interact with an end flap 60b of the covering sheet 60 so as to enable the subsequent folding thereof under the back end 100b of the product 100.
- the folding means 45 comprises a folding element 46, having an elongated shape and being arranged transversely to the covering sheet 60, almost parallel to the movement plane H.
- the folding element 46 is movable along a folding direction V that is almost orthogonal to the aforesaid movement plane H.
- Fourth driving means 47 is provided for moving the folding element 46 along the folding direction V.
- the fourth driving means 47 comprises several straps 49 to which the folding element 46 is fixed.
- the straps 49 are closed in a loop around respective pulleys and are rotated by a second motor 48, for example an electric motor.
- the machine further comprises a second connecting unit 35 that is substantially equal to the first connecting unit 25 and is interposed between the transferring unit 5 and the second conveyor 4.
- the second connecting unit 35 comprises a second fixed portion 36 provided with respective advancing means of the product 100, such as conveyor belts or chains, and a second movable portion 37, which is also provided with respective advancing means of the product 100.
- the second movable portion 37 is driven by fifth driving means 38 between a respective raised position E and a respective lowered position F.
- the second movable portion 37 is almost vertical and spaced away from the second conveyor 4 so as to make on the movement plane H an opening for the descent of the folding element 46 and of the end flap 60b of the covering sheet 60.
- the second movable portion 37 is substantially aligned with the second fixed portion 36 and with the second conveyor 4 so as to enable the product 100 to move from the transferring unit 5 to the second conveyor 4.
- Second rollers 39 are provided on a free end of the second movable portion 37 to retain, in the lowered position F, the covering sheet 60 against the second conveyor 4 and enable the end flap 60b to wrap around the back end 100b of the product 100, as explained in greater detail further on in the description.
- the procedure of wrapping the curved product 100 with the covering sheet 60 and the film of plastics 50 provides a plurality of successive operating steps.
- the delivering means 40 unwraps the covering sheet 60 from the respective reel 61.
- the first movable portion 27 of the first connecting means 25 is in the raised position E to enable the initial flap 60a of the covering sheet 60 to reach below the movement plane H ( Figure 20 ).
- the initial flap 60a remains engaged and retained by the first rollers 29 against the supporting structure 15 of the transferring unit 5 ( Figure 21 ).
- the product 100 abutting on the covering sheet 60 drags the aforesaid initial flap 60b, which is then folded below the front support 101 and below the front end 100a of the product 100.
- the covering sheet 60 is unwound by the delivering means 40, so as to be applied, with a suitable tension, to the convex upper portion of the product 100 ( Figure 22 ).
- the transferring means 7 of the transferring unit 5 is in the retracted position A and the abutting means 14 is in the abutting position C such as to be abutted by the front support 101 of the product 100.
- the product 100 moved by the first conveyor 3 and by the first movement means 8, 9, pushes the transferring means 7 in the supplying direction T to the wrapping ring 21 and to the second connecting unit 35.
- the wrapping ring 21 is rotated so as to wrap with the film 50 the first end 100a of the product 100 and partially the front support 101 on which the covering sheet 60 is arranged.
- the film 50 is also wrapped below on the slides 31, 32 of the transferring means 7 ( Figure 23 ).
- the abutting means 14 is rotated in the disengaging position D to enable the front support 101 of the product 100 to move to the second fixed portion 36 of the second connecting unit 35 and subsequently to the second movable portion 37 placed in the respective lowered position F.
- the transferring means 7 is returned to the retracted position A, by driving the first driving means 11 in an orientation opposite the advancing orientation K of the product 100.
- the transferring means 7 is maintained in the retracted position A so as to enable the film 50 to wrap freely around the product 100 ( Figure 25 ) until the back support 102 abuts on the abutting element 14, previously rotated in the abutting position C ( Figure 26 ).
- the transferring means 7 pushed by the back support 102 are carried to the extended position B to enable said back support 102 to be transferred to the second connecting unit 35.
- the covering sheet 60 is cut and separated from the respective reel 61, so that an end portion thereof is folded by the film 50 on the back end 100b of the product 100, the end flap 60b of the covering sheet 60 being extended on the transferring unit 5 ( Figure 27 ).
- the wrapping ring 21 is stopped and the film 50 is cut and separated from the respective reel 20 and a free flap that is thus obtained is made to adhere to the product 100.
- the folding element 46 pushes the end flap 60b of the covering sheet 60 below the movement plane H, substantially perpendicular and partially adhering to an end of the second conveyor 4 ( Figure 30 ).
- the second movable portion 37 is rotated in the lowered position F so as to retain with the second rollers 39 the end flap 60b against the end of the second conveyor 4 ( Figure 31 ).
- the product 100 is moved in the supplying direction T in a retracting orientation J opposite the advancing orientation K, so as to drag the aforesaid end flap 60b, which is folded under the back support 102 and under the back end 100b of the product 100.
- the transferring means 7 is arranged in the extended position B to support slidably the back support 102.
- the product 100 completely wrapped with film 50 and the covering sheet 60 is moved in the advancing direction T at the outlet from the machine.
- the strips of film 50 wrapped on the slides 31, 32 of the transferring means 7 slide on the latter and adhere to the product 100 guided by the arched portions 31a, 31b of the aforesaid slides 31, 32. More precisely, the flaps of film 50 pass through a gap between the transferring means 7 and the second conveyor 4, also in the extended position B.
- the machine of the invention thus enables a covering sheet 60 and a film 50 to be applied and wrapped in an automatic, rapid and effective manner around a product 100 having a small number of rests of limited dimensions, for example a product with an irregular and/or curved shape resting on opposite ends on respective supports 101, 102.
- the covering sheet 60 it is possible to fix the covering sheet 60 such that it adheres in an optimum manner to the ends of the product, the end flaps of said covering sheet 60 being folded under the supports and wrapped by the film. This wrapping ensures ideal protection of the product 100 that is thus effectively separated and isolated from the external environment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Basic Packing Technique (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Formation And Processing Of Food Products (AREA)
- Containers And Plastic Fillers For Packaging (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMO2008A000332A IT1392516B1 (it) | 2008-12-30 | 2008-12-30 | Macchina avvolgitrice |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2204323A1 EP2204323A1 (en) | 2010-07-07 |
EP2204323B1 true EP2204323B1 (en) | 2011-08-31 |
Family
ID=41571800
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09180430A Active EP2204323B1 (en) | 2008-12-30 | 2009-12-22 | Wrapping machine |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2204323B1 (it) |
AT (1) | ATE522443T1 (it) |
ES (1) | ES2372799T3 (it) |
IT (1) | IT1392516B1 (it) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2915755A1 (en) * | 2014-03-04 | 2015-09-09 | Toppy S.R.L. | Machine for carrying out palletized packaging |
ITUB20151361A1 (it) * | 2015-05-29 | 2016-11-29 | Aetna Group Spa | Macchina avvolgitrice |
ITUB20151033A1 (it) * | 2015-05-29 | 2016-11-29 | Aetna Group Spa | Macchina avvolgitrice |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4524568A (en) * | 1982-08-27 | 1985-06-25 | Lantech, Inc. | Power assisted rotatable film wrapping apparatus |
DE20004058U1 (de) * | 2000-03-03 | 2001-07-05 | H. Böhl GmbH, 42499 Hückeswagen | Wickelmaschine |
FR2879565B1 (fr) * | 2004-12-16 | 2007-02-09 | Michelin Soc Tech | Dispositif et procede d'emballage de pneumatiques |
-
2008
- 2008-12-30 IT ITMO2008A000332A patent/IT1392516B1/it active
-
2009
- 2009-12-22 ES ES09180430T patent/ES2372799T3/es active Active
- 2009-12-22 EP EP09180430A patent/EP2204323B1/en active Active
- 2009-12-22 AT AT09180430T patent/ATE522443T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
ATE522443T1 (de) | 2011-09-15 |
ITMO20080332A1 (it) | 2010-06-30 |
IT1392516B1 (it) | 2012-03-09 |
EP2204323A1 (en) | 2010-07-07 |
ES2372799T3 (es) | 2012-01-26 |
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