ES2209501T3 - DRINK BOX WITH BAND SHAPED TRANSPORT HANDLE. - Google Patents

Abstract

Box for beverage containers, said box including a series of articulated panels (12, 14, 16, 18, 20, 22) that form a sleeve and closure panels (38, 40, 39, 41) articulated with at least an associated articulated panel for closing, at least in part, the opposite ends of the sleeve, in which said box includes a handle through which the box can be transported, said handle comprising a band (98) attached to the closing panels end which has a user part uncovered in one of said articulated panels that form an upper wall of the box, characterized in that said band (98) is attached at its opposite ends to the end fins (84, 88) stamped on the end closure panels, said end fins being adapted to fold inward to provide excess material that allows the user part to be brought to a position of use.

Description

Beverage box with shaped carrying handle of band.

The present invention relates to a box that It is particularly but not only suitable for housing containers of beverages such as cans and incorporating a carrying handle in Band shape that is automatically mounted in a position for your use as the box is closed after being loaded

Beverage boxes are known which include carrying handles and, in fact, transport handles. For example, US 4,166,570 (Lazerand et al ) discloses a packaging box for beverage cans with a band-like handle. The handle band has a central part for the user exposed to the view in an opening for access to the handle in an upper wall of the box, extends through the upper wall and has opposite ends ending in the respective fins of a pair of end closure fins that are articulated in the upper wall. The handle band is reinforced by a separate strip of reinforcing material, for example, a fibrous tape.

WO 97/07031 (Riverwood International Corporation) unveils a packaging box for beverage cans which has a handle band fixed at each end thereof to an outer face of an end wall of the box between a pair of cuts that extend through the joint between the top panel and the respective end panel. When he gets up the box by means of the handle, the layout of a fold line that extends between the pairs of cuts on the top panel allows the parts delimited by the cut lines to be fold inwards.

In the present invention it is intended to overcome or at least mitigate the problems of the prior art.

One aspect of the invention provides a box for beverage containers, said box including a series of panels articulated forming a sleeve and closing panels articulated with at least one associated articulated panel for close, at least in part, the opposite ends of the sleeve, wherein said box includes a handle by which it can the box being transported, said handle comprising a band attached to the end closure panels featuring a user part discovered in one of the articulated panels that form a wall upper of the box, characterized in that said band is joined in its opposite ends to the end fins stamped on the end closure panels, said fins being adapted end to fold inward to provide excess material that allows the user part to be taken to a operating position

An advantage of the first aspect of the invention is that the structural integrity of the outer panels of the box, for example the upper panels and end, while providing additional stability to the structure of the handle.

In one type of embodiments, the fins end can bend inward to warp around in the form of an adjacent article contained within the box.

Preferably, said type of forms of embodiment further comprises an intermediate panel for coupling mutually articulated end fin with panel upper wall More preferably, the intermediate panel is stamped on the top wall panel.

According to an optional feature of the first aspect of the invention, a part of said end fin is placed between the upper parts of adjacent items in said end of the box to provide a spacer stabilizer between them.

Optionally, the end fin rests on the side part of the article in which the intermediate panel is extends into the support point, between the fin of end and side of the article, and beyond it to thereby retain the end fin in a curved situation. The lengths of the end flap and / or intermediate panel they can be greater than the distance between the upper wall panel and the article, thereby substantially preventing the part user folds back into a coplanar relationship with the top wall panel, once the handle is in a position of utilization.

According to another optional feature of the first aspect of the invention, the user part may conform to from a solidary material with the upper wall panel.

According to another optional feature of the first aspect of the invention, the upper wall panel can further comprise a pair of support fins stamped on the upper wall panel and articulated together, said fins being adapted to bend upwards and towards outside when the band is placed in face contact arrangement with the support fins when bringing the user part to a operating position

According to a second aspect of the invention, it is provided a semi-finished one to form a box for beverage containers, said box including a series of articulated panels that form a sleeve and articulated end closure panels with by at least one associated articulated panel to close, at least in part, the opposite ends of a sleeve, a handle by which the box can be transported, said semi-finished being characterized in that it comprises a stamped end flap of each of the end closure panels, said fasteners being fixed end fins to the handle and adapted to fold inwards so that excess material is provided to the handle for allow the user part to take a position of use in a mounted box. Preferably, it comprises also an intermediate panel to couple each other so Articulated end flap with upper wall panel. Plus preferably, the intermediate panel is closed from the panel upper wall

According to an optional feature of the second aspect of the invention, the lengths of the end fin and / or of the intermediate panel may be greater than the distance between the Top wall panel and article, substantially avoiding this way the user part folds back towards a coplanar relationship with the upper wall panel, once the handle It is in a position of use.

According to another optional feature of the second aspect of the invention, the user part is formed from of a material that is integral with the upper wall panel.

According to another optional feature of the second aspect of the invention, the upper wall panel comprises also a pair of support fins stamped on the wall panel upper and joined in an articulated way, being adapted said fins to bend up and out when it puts the band in contact arrangement of faces with the fins of medium support that takes the user part to a position of use.

Below are some ways to embodiment of the invention, by way of example, by making reference to the attached drawings, in which:

Figure 1 is a plan view of a box envelope according to an embodiment of the invention

Figure 2 is a plan view of the semi-finished work depicted in figure 1 incorporating a band of handle;

Figure 3 is a perspective view of a box formed from the semi-finished one represented in the Figure 1;

Figure 4 is a perspective view of the box shown in figure 3 illustrating the handle structure in a mounted position;

Figure 5 is a cross-sectional view. of the box represented in figure 4 by "X-X".

Figure 6 is a plan view of a semi-finished of a wrapping box according to a second form of embodiment of the invention:

Figure 7 is a plan view of the semi-finished work depicted in figure 6 that incorporates a band of handle;

Figure 8 is a perspective view of a box formed from the semi-finished one represented in the figure 6;

Figure 9 is a perspective view of the box shown in figure 8 illustrating the handle structure in a mounted position;

Figure 10 is a plan view of a semi-finished of a wrapping box according to a third form of embodiment of the invention:

Figure 11 is a plan view of the semifinished represented in figure 10 incorporating a band of handle;

Figure 12 is a perspective view of a box formed from the semi-finished one represented in the figure 10;

Figure 13 is a perspective view of the box shown in figure 12 illustrating the handle structure in a position mounted in one type of embodiments; Y

Figure 14 is a cross-sectional view. of a part of the box and an article that shows the disposition of the handle fins in another type of embodiments.

Referring to the drawings, and in particular to figures 1, 2, 6, 7, 10 and 11 thereof, to from a semi-finished unit 10, 210, 310 of cardboard or other suitable folding sheet material, a support for items that can be adapted to accommodate a variety of items, for example twelve bottles arranged in three rows of four bottles each. It is planned that the support can be adapted to accommodate a different number of bottles according to the needs of the user.

Returning to semi-finished prepared for box 10 illustrated in figure 1, said semi-finished includes a first base panel 12, a lower side panel 14, a side panel upper 16, an upper panel 18, a second upper panel 20, a second lower panel 22, each of them articulated to the following in a longitudinal plane along the lines of fold 24, 26, 28, 30 and 32 respectively.

The semi-finished also includes a structure end closure 34, 36 including a pair of closure panels opposite upper ends (or "adjacent panels") 38, 40 joined together to the upper panel along the interrupted fold lines 42 and 44 respectively, located at along the end edges of the upper panel 18 and a pair of bottom end closure panels 39, 41 joined together articulated to the base panel 12 along the fold lines 43, 45 respectively.

End closure structure 34 includes corner panels 46 and 48 joined together by a part of panel 50. Corner panels 46, 48 extend outward from the lower and upper side panels 22, 20 respectively and are attached to these by the lines of fold 52, 54. Another overlapping panel 56 is attached to the panel of end 38 by a side fold line and to the panel corner 46 along the fold line 58. The panels corners 46, 48 and overlay panel 56 are adapted to form a corner structure as is well known in the technique.

Also, the opposite corner of the structure of end closure 34 also includes corner panels 60 and 62 joined together by panel part 64. The panels corners 60, 62 extend outward from the panels lower and upper laterals 14, 16 respectively and are joined to them by means of fold lines 66, 68. Another panel overlay 70 is attached to end panel 38 by line of lateral fold 28 and to the corner panel along the line of fold 72.

The construction along the opposite side of the upper panel and lower part comprises a closure structure of end 36 which is similar and therefore the equal parts of one end of the top panel are designated by numbers of reference equal to those of the parts of the opposite end with the addiction of the suffix "a" and are not described with greater detail.

The upper panel 18 may further comprise a central user part 74, frangibly linked to said top panel 18. In this embodiment, the central part of user 74 has substantially rectangular shape and comprises a pair of support panels 76, 78 that extend towards a central user opening 79 and are attached to the edges sides of the central user part along some lines fold 80, 82 respectively. Additionally, it can be applied a handle band 98, shown in figure 2, on the surface interior of the semi-finished 10, preferably being fixed to the part user center 74 and opposite end closure panels 38, 40 by means of glue at the gluing points G or by others means known in the art. It is further preferred that the band of handle is formed from cardboard, laminated cardboard, fibrous tape or Other suitable plastic material.

In one type of embodiments, it is stamped on the semi-finished one, on the end closure panel 38, a stabilizing fin (or bottleneck spacer) 84, represented in figure 1, so that said fin 84 is articulated in said panel, but on the other hand it is cut from semi-finished Also, on the other end closure panel 40 a second fin 88 is stamped and joined in an articulated manner to the same.

The second embodiment represented in Figures 6 and 7 correspond substantially to the first embodiment and therefore equal parts are designated through reference numbers to which the prefix "2". Only the parts of the second form of embodiment that differ from the first embodiment is described herein below. In this way, in the semi-finished one, in the end closure panel 238, is stamped a stabilizing fin (or neck spacer of bottles) 284, represented in figure 6, so that said fin 284 is articulated with said panel and with the upper panel around line 286, but on the other hand it is cut off from semi-finished Flap 284 preferably comprises a panel of step 285 and an elevator panel 287, joined together along the fold line 289, said panels adapting during the construction of the box to determine a step (or element of stability).

The upper panel 218 may further comprise a central user part 274, frangibly linked to said upper panel 218. In this embodiment, the central part of user 274 has substantially rectangular shape and comprises a pair of support panels 276, 278 that extend towards a central user opening 279 and are attached to the lateral edges of the central user part along some fold lines 280, 282 respectively. Additionally, you can apply a handle band 298, shown in figure 7, in the inner surface of semi-finished 210, being fixed to the part user center 274 and to the end closure panels opposite 238, 240 by glue at the gluing points G or by other means known in the art. Preferably, the handle band 298 is also glued, or otherwise fixed, to the step panels 285, 287 of each step as shown in the Figure 7. It is further preferred that the handle band conforms to Starting from cardboard, or laminated cardboard, fibrous tape or other material of suitable plastic.

The third embodiment represented in Figures 10 to 13 correspond substantially to the first and second embodiments in many respects and therefore, where possible, equal parts are designated by numbers reference to which the prefix "3" has been added. Returning to box semi-finished 310, illustrated in Figure 10, said semi-finished one includes a base panel 312, a side panel bottom 314, a top side panel 316, a top panel 318, a second upper panel 320, a second lower side panel 322, each of them jointly linked to the next in a longitudinal plane along the fold lines 321, 326, 328, 330 and 332 respectively.

The semi-finished one also includes one or several end closure structures 334, 336 that include a pair of opposite upper end closure panels (or "panels adjacent ") 338, 340 articulated to the panel upper along fold lines 342 and 344 respectively, located along the end edges opposites of the upper panel 318. In this embodiment, the end closure structures 334, 336 also include a pair of bottom end closure panels 339, 341 joined together articulated to the base panel 312 by the fold lines 343, 345 formed respectively along the edges opposite lengths of base panel 312.

The end closure structure 334 also can include corner panels 346 and 348 joined together by a part of panel 350. Corner panels 346, 348 are extend outward from the lower side panels and upper 322, 320 respectively and are attached to them by the fold lines 352, 354. Another overlay panel 356 is attached to the upper end panel 338 by a line of lateral fold and corner panel 346 along the line of fold 358. Corner panels 346, 348 and overlay panel 356 are adapted to form a corner structure, as is well known in the art.

Also, the opposite corner of the structure of end closure 334 also includes 360 corner panels and 362 joined together by the panel part 364. The panels corners 360, 362 extend outward from the panels lower and upper sides 314, 316 and are attached to them by means of fold lines 366, 368. Another overlapping panel 370 is attached to end panel 338 by a fold line side and corner panel along the fold line 372

The constructive form along the opposite side of the upper and lower panel, which includes a structure of end closure 336 is similar and therefore the parts peers at one end of the top panel are designated by reference numbers equal to those of the end parts opposite, but with the addiction of the suffix "a" and not described in more detail.

In the semi-finished one or several are stamped handle fins 384, 384a, represented in figure 10, which in this embodiment conform from corner panel 360 and / or the side panel 314, so that said fin 384 is articulated with said panel 360 and preferably with the panel side 314 around the fold line 386, but on the other part is cut from semi-finished by cutting lines 392, 394 in a substantially parallel separate arrangement. Fin 384 preferably comprises a passage panel 387 and an elevator panel 389, joined together along a fold line, adapting said panels during the conformation of the box to determine a step (or stability element). In this form of embodiment the step panel 387 is separated from the corner panel 360 through panel 385 and is articulated to it along the fold line 390 described in greater detail at continuation.

Preferably, the handle fin 384 is separate from corner panel 360 and bottom side panel 314 through openings 393, 395 to facilitate the folding of said fins out of alignment with 360 corner panel and panel lower side 314.

The side panel 314 may further comprise a user part 374, frangibly linked to said panel side 314 along frangible lines 375 and arranged in a central area of the side panel. In this embodiment, user part 374 has substantially rectangular shape and comprises a pair of support panels 376, 378 that extend in a central user opening 379 and are attached to the edges sides of the central user part along some lines fold 380, 382 respectively.

Additionally, a handle band can be applied 398, depicted in Figure 11, on the inner surface of the semi-finished 310, preferably being fixed to the central part of user 374 and opposite corner panels 338, 340 by glue in zones 416, 414 or other means known in the art. Preferably, the handle band 398 is also glued to the step panels 385, 387 of each step. It is further preferred that the handle band conforms from cardboard, or laminated cardboard, fibrous tape or other suitable plastic material.

Along the opposite side edges of the user part 374, said handle band may comprise a handle tab 400 stamped on the lower side panel 314 by lateral cutting lines 402, 404. In use the handle tabs guide the band when it moves towards outside.

Cutting lines 406, 406a may be included stamped on the bottom end panels 339 and 341 for Cooperate with handle fins 384, 384a.

In another type of embodiments, the handle structure may comprise one or more handle fins (not represented) stamped on 360 corner panel or other panel suitable, so that the fin is articulated with said panel to along one edge but otherwise be cut from semi-finished in a similar way to the first embodiment. Also, a second fin could be stamped on the corner panel opposite 360a or other suitable panels and join it so articulated A handle band would be attached to the handle fins opposite and preferably to a user part, but on the other part would not be attached to the semi-finished.

Going back to the constructive form of the box, illustrated in figures 3, 4, 5, 8, 9 and 12, 13, the semi-finished 10, 210, 310 requires a series of folding operations and / or successive gluing that can be performed in a linear machine so that it is not necessary to rotate or invert the box to Complete its manufacturing. The folding process is not limited to described below and may be altered according to particular manufacturing requirements.

The box is normally supplied to a bottler in a flat folded tubular state: the base panel 12, 212, 312 already attached to the lower side panel 22, 222, 322 by fixing the tail fin 94, 294, 394 to the panel lower side 22, 222, 322 by means of glue or other means adequate. In order to assemble the box, the panels are separated lateral, upper and base to form a tubular structure, As is well known.

From this moment, the items in the partially shaped box and the end closure structure. In the first form of embodiment, the closure panels 38 and 48 are folded down at each end of the sleeve formed by the folding action envelope Corner panels 46, 48, 50 and 60, 62, 70 are fold inward around the fold lines 52, 54 and 66, 68 respectively whereby the corner panels 46, 48, 60, 62 enter into a face-to-face relationship with the panels laterals 22, 20 and 14, 16 respectively. Panels 56, 70 come into contact face to face with their respective panels adjacent corners 46, 62.

Optionally, the faces of the corner fins 46, 60 in contact with the upper side panels 16, 20 respectively they can be fixed to each other by known means in the art to keep the end closure panels in their place. Next, the lower closing panels are folded around the fold lines and in contact with the panels upper closure 38, 40 and are fixed together by glue or others means known in the art. The end structures of the second and third embodiments are formed so substantially identical and therefore its construction is not Describe in greater detail.

Thus, the boxes of the first, second and third embodiments are in a state mounted and loaded as depicted in figures 3, 8 and 12 respectively. The first embodiment advantageously allows the part upper and the end of the box are intact improving so Both the structural integrity of the box during handling and storage, due in part to the folding lines that Join the upper and upper side panels are continuous.

The embodiment represented in the figure 12 allows the upper part of the box to remain intact and from this mode also improves the structural integrity of the box during its handling and storage, again due in part to the fact that fold lines joining the upper and side panels Superiors are continuous.

To conform the handle in the first form of embodiment illustrated in figures 4 and 5, the central part of user 74 can be separated from the top panel 18 whereby less a part of the handle band rises protruding from the upper panel, shown in figure 4. In figure 5, appreciate that the band is attached in this way to the opposite ends of the closing panels to provide excess material that allows the central user part 74 to be taken to its operating position Support panels 76, 78 fold below the handle band, so that the central part of user 74 is wrapped around the band, the central part of User 74 provides a buffer padding for the band, shown in Figure 4. In addition, the central user part 74 It is designed for easy use.

In the second embodiment, the handle is conforms by folding each of the stabilizing fins (or bottleneck spacers) 284 and 284a. The fins 284 and 284a are formed with cutting lines 292, 294 preferably divergent from folding line 289 and cutting lines 293, 295 intermediate and substantially perpendicular to the lines of folding 286 and 289, around which they can be folded said fins in a tilting action to determine a step in each end of the top panel 18. This action can occur automatically when folding the end closure panels that bring the fins to their operative position in which said fins they move out of the plane of the top panel into the box, as shown in figure 9. Optionally, they are formed cutting lines 292, 294; 293, 295 to determine a shaped edge, adapted to cooperate with a neck part of an article. Once the stabilizer fin 284 is displaced, or each one of them is arranged between the neck parts of the rows adjacent items within the packaging to assist in the keeping items in their right positions inside the packaging, particularly to prevent items they lean inwards while the closing panels end prevents bottles from tilting longitudinally Regarding the packaging.

To form the handle of the third form of embodiment, as illustrated in figure 13, the part of user 374 can be separated from panel 314 and at that time it automatically forms the handle by folding each of the fins of handle 384. More particularly, a stabilizing structure is formed  by means of folding panels 385, 387 and 389 towards the inside the corner panel 360 such that the passage panel 385, 387 and elevator panel 389 are substantially perpendicular or more preferably are in an angular relationship sharp Thus, fins 384 can be folded in one action. tilting to determine a step at each end of the panel lower side 314. This action can occur automatically when the user pulls the handle band that brings the fins to its operational position by which said fins move out of the plane of the top panel towards the inside of the box, as shown in figure 13. Once moved, the panel or each  panel 385 comes into contact with the product. Advantageously, the band 398 is maintained between the product and the box which allows an additional resistance

In other embodiments, the structures stabilizers 418, 420 are shaped in this way to allow that step panel 385, 387 be supported by the article as shown in figure 14. Preferably, once the step and step panels and elevators are folded in perpendicular (or angular) relationship, these are formed in this way To stay in place. More preferably, when the user make up the step, it is "over the center" of the plane notional X-X between the tangential contact point between the article and the band and the fold line between the panel elevator and side panel and therefore prevents it from folding again in a coplanar relationship with the side panels and cornerbacks In some embodiments, this is achieved. because the passage panel 387 and / or the elevator panel 389 is greater in length than the distance "d" between the side panel 314 and article A.

An advantage of this structure layout of handle is that said handle structure is more rigid and once it has been separated the user part of the side panel it continues protruding out of the side panel while providing a handle band that can be shaped according to the contour of the article more exterior A supported by the box.

When using the support of any of the embodiments there is a tendency for the handle band attract end closure structures 34, 36, 234, 236, 334, 336 inward to thereby improve the integrity of the box and provide a self tightening effect. Also, in these embodiments in which the band and / or the passing wings and lifts are placed between the neck parts of the adjacent bottles, the stability of the box is improved due to the items support.

Advantageously, the embodiments Preferred of the present invention illustrate a box presenting a handle band, said band being reinforced by a band separated formed from the material of one end of the semi-finished to from which the box is formed. The handle band is attached to a handle and presents a user part exposed to view in a access opening to the handle but on the other hand is arranged inwardly with respect to the box.

The box is mounted as an end sleeve open for loading and then loaded by the ends after which it is terminated by closing the panel end closure The closure of the end closure panel has an effect on the arrangement of the handle band. As the end closure panels fold into their positions of close the handle band loosens towards a position ready for utilization. When the box is lifted through the central part of user of the handle band, said band bends upwards and protrudes through the handle access opening out of the top / side wall The load is transmitted from the handle band to the end wall of the box at each end opposite of the handle access opening and distributed through from the end wall.

The present invention and its embodiment preferred refer to an article holder that is shaped to provide satisfactory resistance to sustain items safely but with a degree of flexibility of form that the load transfer to the handle is absorbed by the support. The semi-finished form minimizes the amount of cardboard required and the support can be applied to a variety of items by manual or automatic machinery. It is anticipated that the invention may apply to a variety of brackets and is not limited to the type envelope For example the upper panel 18, the side panels 14, 16, 20, 22 and the end closure structure 34, 36 of the Box mentioned above can be applied to other types of boxes for example holding boxes on the top, without depart from the scope of the invention.

Claims (15)

1. Box for beverage containers, said box including a series of articulated panels (12, 14, 16, 18, 20, 22) that form a sleeve and closure panels (38, 40, 39, 41) articulated with at least one associated articulated panel for closing, at least in part, the opposite ends of the sleeve, in which said box includes a handle through which the box can be transported, said handle comprising a band (98) attached to the panels of end closure presenting a user part discovered in one of said articulated panels forming an upper wall of the box, characterized in that said band (98) is attached at its opposite ends to the stamped end fins (84, 88) on the end closure panels, said end fins being adapted to fold inward to provide excess material that allows the user part to be brought to a position of use. 2. Box according to claim 1, wherein end fins (84, 88) bend inward to deform around the shape of an adjacent article contained in the inside the box. 3. Box according to claim 1 or 2, wherein it also comprises an intermediate panel (287) for joining mutually articulated end fin (284) with the upper wall panel (218). 4. Box according to claim 3, wherein the intermediate panel (287) is stamped on said wall panel superior (218). 5. Box according to any of the claims above, in which a part of said end fin (284) It is arranged between the upper parts of the items adjacent at said end of the box to provide a stabilizer spacer between them. 6. Box according to any of the claims 1 to 4, in which the end fin (384) rests on the part side of the article and in which the intermediate panel (387, 389) is extends inwards and beyond a foothold between the end fin and side part of the article to retain from this mode the end fin in a curved position. 7. Box according to claim 6, wherein end fin lengths (384) and / or intermediate panel (387, 389) are greater than the distance between the wall panel top and the article, thereby substantially avoiding that the user part (374) folds back into a relationship coplanar with the upper wall panel (314), once the handle is in a position of use. 8. Box according to any of the claims above, in which said user part is formed from of a solidary material with the upper wall panel. 9. Box according to any of the claims above, in which the upper wall panel (314) comprises also a pair of support fins (400) stamped on the panel upper wall and joined in an articulated way, being adapted said fins to bend up and out when the band is placed in face contact arrangement with the support fins when carrying the user part (416) to a operating position 10. Semi-finished to form a box for beverage containers, said box including a series of articulated panels (12, 14, 16, 18, 20, 22) that form a sleeve and end closure panels (38, 40, 39 , 41) articulated with at least one associated articulated panel to close, at least in part, the opposite ends of a sleeve, a handle by which the box can be transported, said semi-finished being characterized in that it comprises a closed-end fin ( 24, 88) stamped on each of the end closure panels, said end fins being fixed to the handle and adapted to fold inwardly so that excess material is provided to the handle to allow the user part to be carried to a position of use in a mounted box. 11. Semi-finished according to claim 10, in which also comprises an intermediate panel (287) for mutually couple the end flap (284) with the upper wall panel (218). 12. Semi-finished according to claim 11, in which the intermediate panel (287) is stamped on said panel of upper wall (218). 13. Semi-finished according to claim 12, in the length of the end fin (384) and / or the panel Intermediate (387, 389) are greater than the distance between the panel Top wall and article, thus avoiding substantially that the user part folds back into a coplanar relationship with the upper wall panel, once the handle It is in a position of use. 14. Semifinished according to any of the previous claims, wherein said user part is formed from solidary material with the wall panel higher. 15. Semifinished according to any of the previous claims, wherein the upper wall panel (314) further comprises a pair of stamped support fins (400) on the upper wall panel and joined in an articulated way to the same, said fins being adapted to fold up and out when the band is placed in contact arrangement of faces with the support fins when bringing the user part to a operating position