BARREL STRAP, ITS MANUFACTURING PROCESS, CORRESPONDING BANDS AND BARRELS

Abstract

BARREL STRAPPING STRAP, ITS MANUFACTURING METHOD, CORRESPONDING BANNER AND BARREL. This strap comprises two opposing faces (1, 2), two opposing lateral sides (3, 4), and two opposing longitudinal ends (5, 6) adapted to be mutually fastened. According to the invention, the strap comprises a continuous area (10) extending between the opposing sides, defining a first face, at least one flap (20, 25), each extending near a portion of the area, defining at least a portion of the second face, and at least one rim (3, 4) forming a respective lateral side of the strap. Given its specific geometry, the strapping strap according to the invention has sides that do not generate any risk of corrosion.Furthermore, the invention facilitates the management of strip stocks in a cooperage hoop manufacturing workshop, while also allowing the supply of a cheaper raw material, namely a wide galvanized strip, which replaces the galvanized strips after cutting. Figure 7.

Description

Title of the invention: BARREL STRAP, ITS MANUFACTURING METHOD, CORRESPONDING RING AND BARREL Technical field of the invention

[0001] The present invention relates to the field of cooperage and, more particularly, to the hooping of barrels. It relates more specifically to a hoop band for barrels, which significantly reduces corrosion problems. The invention also relates to a method for manufacturing such a band, a barrel hoop obtained from this band, and a barrel fitted with at least one such hoop. State of the art

[0002] Typically, a barrel is equipped with several reinforcing and support elements called hoops. These hoops, which are provided at different heights of the barrel, are typically made of galvanized steel and in this case comprise a steel band coated with a layer of zinc, which provides galvanic protection to the steel band; the hoop is closed using one or more rivets.

[0003] Typically, a barrel hoop is made from a strip, the thickness of which is usually between 1.5 mm and 2 mm, while its width typically varies between 20 mm and 100 mm. A known solution is in which each strip is obtained by cutting a wider primary sheet. This operation is generally called "slitting". Each strip thus cut is then galvanized, which protects it on its opposite faces and edges.

[0004] Depending on its dimensions and even its geometry, each barrel must be fitted with a hoop made from a strip of a specific width. Therefore, the hoop manufacturer must maintain a stock of galvanized strips of varying widths and, where applicable, thicknesses. To simplify the management of the strip stock, it has been proposed to manufacture hoops from wider blanks. These blanks are then cut, or "slit," to the required width, possibly at the hoop manufacturing site itself.

[0005] The solution described above, however, has some drawbacks. Indeed, it has been observed that the barrel hoops thus manufactured sometimes show visible traces of corrosion. The appearance of these traces depends on various parameters, including the storage conditions of the barrel in the cellar, the type of wood, and in particular the presence and concentration of tannins.

[0006] These traces of corrosion certainly do not call into question the primary function of the hoops, namely the mechanical support of the barrel. Nevertheless, they are likely to pose an aesthetic problem. This can be perceived as a major drawback for very high-value wines and, more generally, for cellars of high prestige.

[0007] In view of the foregoing, one objective of the present invention is to remedy at least in part the disadvantages of the prior art presented above.

[0008] The invention aims in particular to provide a barrel strapping band which, while being able to be cut on the barrel manufacturing site to simplify stock management, is only slightly subject to corrosion problems.

[0009] The invention also aims to provide such a strip, which can be produced using a simple and relatively inexpensive manufacturing process. Objects of the invention

[0010] According to the invention, at least one of the above objectives is achieved by means of a metal band (I; II), in particular a barrel strapping band (1000),

[0011] said band comprising two opposite faces (1, 2; 301, 302), two opposite lateral sides (3, 4; 303, 304) and two opposite longitudinal ends (5, 6) adapted to be mutually fixed

[0012] this band being characterized in that it comprises

[0013] - a continuous range (10; 310), extending continuously between opposite sides, said beach defining a first face,

[0014] - at least one flap (20, 25; 320) each of which extends in the vicinity of a part of the beach, the flap(s) defining at least part of the second face

[0015] - at least one edge (3,4; 303) each of which connects a respective flap to the beach, each edge forming a respective lateral side of the strip.

[0016] According to additional features of this strip, taken individually or in any combination technically compatible for a person skilled in the art:

[0017] - the band comprises two flaps (20, 25) extending towards each other, these flaps delimiting an interval (28), this interval being in particular offset with respect to a median longitudinal axis (XX) of the band;

[0018] - said strip comprises a main layer (A) made of a first material, in particular selected from raw steels, stainless steels, aluminum and aluminum alloys, brasses, copper and copper alloys, bronzes, and an outer coating layer (B) extending over at least a major part of the main layer, this coating layer being made of a second material, in particular selected from: zinc, organic-based coatings such as varnishes or paints.

[0019] - at least one (3,4; 303) and preferably two (3,4) edge(s) is / are coated with less in part and, preferably, in whole by said coating layer (B).

[0020] - each rim (3,4; 303) has a rounded outer profile, in particular in the shape of a semicircle.

[0021] - The strip has at least one and, preferably, all of the following characteristics following:

[0022] - total thickness (E): between 0.7 and 10 mm

[0023] - total length (L): between 300 and 20,000 mm

[0024] - total width (1): between 10 and 120 mm

[0025] - mass between 16 g and 200 kg.

[0026] - The strip has at least one and, preferably, all of the following characteristics following:

[0027] - total thickness (E): between 1.5 and 5 mm

[0028] - total length (L): between 1,000 and 10,000 mm

[0029] - total width (1): between 30 and 70 mm

[0030] - mass between 300 g and 30 kg.

[0031] The invention also relates to a method for manufacturing a metal band, and in particular a barrel strapping band (1000) such as above, comprising the following steps:

[0032] - supply of a blank (200) made of a material identical to that intended for forming said strip, said blank having a central region (210) as well as lateral regions (220,225), at least one edge (221,226) of the lateral regions not being covered by the coating layer

[0033] - deformation of the lateral regions, so that the median region corresponds to the final range of the band, while the lateral regions correspond to the flaps of the band.

[0034] The invention also relates to a hoop (100) for a barrel (1000), intended to extend around the periphery of a portion of a barrel of this cask, said hoop comprising a main layer (A) made of a first material, in particular selected from raw steels, stainless steels, aluminum and aluminum alloys, brasses, copper and copper alloys, bronzes, and an outer coating layer (B) extending over at least a major portion of the main layer, this coating layer being made of a second material, in particular selected from: zinc, organic-based coatings such as varnishes or paints,

[0035] said circle comprising two opposite faces (101,102), namely an inner face intended to be opposite the barrel of the cask, as well as an opposite outer face, two opposite lateral sides (103,104) as well as two opposite longitudinal ends (105,106),

[0036] the circle further comprising fastening means, in particular permanent fastening means for example by riveting (170,172), between said opposite longitudinal ends,

[0037] this circle being characterized as comprising:

[0038] - a continuous beach (110), extending continuously between opposite sides, said beach defining the outer face,

[0039] - at least one flap (120,125) each of which extends into the vicinity of a part of the beach, the flap(s) defining at least part of the inner face, and preferably two flaps extending towards each other

[0040] - at least one rim (103,104), preferably two rims, each of which connects a respective flaps at the beach, each edge forming a respective lateral side of the circle.

[0041] The invention also relates to a barrel (1000), comprising opposing walls (1001, 1002) and a body (1003) extending between these opposing walls, a portion of the periphery of said body being covered by at least one circle (100) as above. Description of the figures

[0042] The invention will be described below, with reference to the accompanying drawings, given solely by way of non-limiting examples, in which:

[0043] [Fig-1] is a perspective view, schematically illustrating a barrel equipped of circles conforming to the invention.

[0044] [Fig.2] is a perspective view, schematically illustrating one of the circles equipping the barrel of the [Fig.l].

[0045] [Fig.3] is a diametrical cross-sectional view, illustrating the circle of [Fig.2].

[0046] [Fig.4] is a top view, illustrating a band of strapping intended to form the circle of figures 2 and 3.

[0047] [Fig.5] is a bottom view, illustrating the band of the [Fig.4].

[0048] [Fig.6] is a front view, illustrating the band of the strapping of figures 4 and 5.

[0049] [Fig.7] is a cross-sectional view, along line VII VII in [Fig.6], illustrating the band of strapping in figures 4 to 6.

[0050] [Fig.8] is a top view, schematically illustrating a first stage of manufacturing of the strapping band for figures 4 to 7.

[0051] [Fig.9] is an end view along arrow IX in [Fig.8], illustrating a second step manufacturing of this strip.

[0052] [Fig. 10] is a cross-sectional view, analogous to [Fig. 7], illustrating a strapping band in accordance with the prior art.

[0053] [Fig. 11] is a larger scale view of detail XI of [Fig.7].

[0054] [Fig. 12] is a larger scale view of detail XII of [Fig.7].

[0055] [Fig. 13] is a larger scale view of detail XIII of [Fig. 10].

[0056] [Fig. 14] is a cross-sectional view, similar to [Fig.7], illustrating a strapping band according to an alternative embodiment of the invention.

[0057] The following numerical references are used in this description:

[0058] I strapping band according to the invention - A inner layer - B outer layer - e(B) thickness of the outer layer - 1,2 opposite faces - 3,4 opposite sides - 5,6 opposite ends;

[0059] 10 pages - 20.25 flaps - 21.26 slices of 20 25 - 29 interleaved space - 30.40 edges

[0060] E, L, 1: thickness, length and width of the band -128 width of the interval 28 -d28 offset between 28 and the axis XX;

[0061] Zl, Z2 corrosion zones;

[0062] 250 tablecloth - DEC cutouts - 200 rough - 210 median region of 200 - 220 and 225 lateral regions of 200 - 221, 226 songs of 220 and 225;

[0063] 100 circle - X100 longitudinal axis - 101,102 outer and inner faces - 103,104 upper and lower side panels - 105, 106 longitudinal ends - 120, 125 flaps - 128 gap - 150, 152, 160, 162 holes in 105 and 106 - 170, 172 rivets

[0064] II strapping band according to a variant of the invention - 310 beach - 320 single flap - 330 rim - 311,321 slices of beach 310 and flap 320;

[0065] III strapping band according to the prior art - 403,404 opposite sides - Z' corrosion zone. Detailed description

[0066] Figure 1 illustrates more particularly a barrel 1000, which can be fitted with hoops made from strapping bands according to the invention. Typically, this barrel comprises opposing walls 1001 and 1002, which are generally flat, and a body 1003 connecting said walls. Generally, as illustrated in this figure, this body has a curved shape. However, the invention also applies to cylindrical barrels of constant cross-section.

[0067] The barrel 1003 is fitted with various hoops, successively referenced 100, as well as 100a to 100e, which are arranged one below the other. Hoops 100 and 100e are located on one side of the bung, while the other hoops 100a to 100d are located on the opposite side of the same bung. Hoop 100 will be explained in more detail later in this description, it being understood that the other hoops 100a to 100e are identical. This hoop 100 is made from a banding strip I, visible in Figures 4 to 7.

[0068] According to an advantageous embodiment suitable for manufacturing hoops for cooperage, this band is composed of an inner layer A of a material main layer, as well as an outer layer B of a coating material. These layers, which are particularly visible in Figures 11 and 12, are not shown at actual scale. Indeed, the thickness e(B) of the coating layer is very small, being significantly less than the thickness of the inner main layer.

[0069] The respective materials forming layers A and B of the strapping band according to the invention are common. By way of non-limiting example, for layer A, examples include: raw steels, stainless steels, aluminum and aluminum alloys, brasses, copper and copper alloys, and bronzes. Furthermore, again by way of non-limiting example, for layer B, examples include: zinc and organic-based coatings such as varnishes or paints. Thus the strapping band according to the invention can be selected from the group formed by raw steels, coated steels, standard galvanized steels type Z, zinc magnesium galvanized steels type ZM, zinc aluminium galvanized steels, zinc aluminium magnesium galvanized steels (abbreviated ZAM), electro-galvanized steels type EZ, pre-painted steels (all colours), CORTEN ® steel, stainless steels, aluminium and aluminium alloys, brasses, coppers, bronzes.

[0070] The elongated band I has a median longitudinal axis denoted XX. With reference to Figures 4 to 7, we note:

[0071] - 1 and 2 its opposite faces, respectively exterior and interior with reference to the position of the circle formed from this strip, once it is mounted on the barrel;

[0072] - 3 and 4 its opposite lateral sides; and

[0073] - 5 and 6 its opposite longitudinal ends.

[0074] The strip I first comprises a section 10, forming the outer face. This section is said to be continuous, meaning that it is without interruption of material between the opposite sides 3 and 4. This strip further comprises two flaps 20 and 25, connecting to the section 10 by means of edges 30 and 40. The latter, which form the lateral sides 3 and 4 of the strip I, have a curved profile in cross-section, in this case semi-circular in the illustrated example.

[0075] The facing edges 21 and 26, belonging to the flaps 20 and 25, are separated by a gap 28. This gap is offset from the median longitudinal axis XX. In other words, one flap 20 is wider than the other flap 25, as can be seen in particular in [Fig. 7]. The facing edges of the plate 10 and the flaps 20 and 25 are separated by an intercalated space 29. As is known per se, the opposite ends 5 and 6 are adapted to be mutually secured by any suitable means. In this case, this fastening is achieved by riveting, as will be described in more detail below. The technical effect associated with the asymmetrical nature of the flaps will also be discussed.

[0076] We will give below, by way of example, different numerical values ​​relating to the characteristic dimensions of band I which are suitable for its use as a strapping band for a barrel:

[0077] - total thickness E of the strip: between 0.7 and 10 mm (millimeters), preferably between 1.5 and 5 mm

[0078] - total length L of the strip: between 300 and 20,000 mm, preferably between 1,000 and 10,000 millimeters

[0079] - total width (1) of the band: between 10 and 120 mm, preferably between 30 and 70 mm millimeters;

[0080] - width 128 of the interval 28 at rest, i.e. in the absence of mechanical action Exterior thickness: between 0.1 and 10 mm, preferably between 1 and 3 millimeters

[0081] - total mass of the strip: between 16 g and 200 kg, preferably between 300 g and 30 kg.

[0082] The following ranges of values ​​can be distinguished, depending on whether the final circle is referred to as "small" or "large". In the case of a "small" final circle, the thickness is between 0.7 and 2.5 millimeters, preferably between 1.5 and 2 mm, the width is between 10 and 70 millimeters, preferably between 30 and 60 millimeters, while the length is between 300 and 5000 millimeters, preferably between 1000 and 3000 millimeters. In the case of a "large" final circle, the thickness is between 2.5 and 10 mm, preferably between 3 and 5 millimeters, the width is between 40 and 120 millimeters, preferably between 60 and 70 millimeters, while the length is between 1000 and 20,000 millimeters, preferably between 2000 and 10,000 millimeters.

[0083] The thickness of the intercalated space 29 (see [Fig.7]), in the absence of external constraints, is as small as possible. Consequently, the respective thicknesses e10, e20 and e25 of the range 10 and the edges 20,25 are slightly less than, or even substantially equal to, half the total thickness E.

[0084] The manufacture of the tape I above first involves supplying a sheet 250, shown schematically in [Fig. 8]. This sheet, which can be unwound from a reel (not shown), has a thickness corresponding to those e10, e20, and e25 of the web and flaps. However, it has a width 1250 much greater than that J of the tape. Preferably, this sheet is pre-coated, meaning that it is made of the same materials as the final tape.

[0085] Next, a splitting operation is carried out on the sheet 250, namely, two parallel cuts DEC are made in this sheet to form a blank 200. The latter has a width 1200 which corresponds approximately to the sum of the respective widths of the area 10 and the flaps 20 and 25. The median region and the lateral regions of this are denoted respectively by 210, 220 and 225. Draft 200. It should be noted that, following the DEC cuts, the edges 221 and 226 (see [Fig.9]) of the lateral regions are not covered by the outer material B.

[0086] The blank 200 then undergoes operations to modify its shape in order to obtain the final strip I. More precisely, as shown in [Fig. 9], the lateral regions 220 and 225 are first folded towards each other, according to arrows F220 and F225. They are then pushed towards the central part 210, according to arrows F210. Once these operations have been carried out, the central region 210 forms the area 10 of the strip I, while the lateral regions 220 and 225 define the flaps 20 and 25 of this strip. The forming operations mentioned in this paragraph are carried out in a manner known per se, in particular using conventional bending and profiling techniques.

[0087] According to a first embodiment, no additional fastening of the lateral regions to the median region is required. In other words, once the strip I is formed, the flaps are not fixed to the beach. According to an alternative embodiment, additional fastening is provided, for example by gluing, welding, brazing, or the like. In this case, the final flaps of the strip are fixed to the beach by one of these means.

[0088] The strip I allows the circle 100 to be formed, by means of steps known per se. This involves folding this strip back on itself, around the longitudinal axis X100, while deforming it in the diametral plane. By analogy with the strip I, we denote 101 the outer face, 102 the inner face, 103 the upper lateral side, 104 the lower lateral side, and 105 and 106 the longitudinal ends of the circle 100.

[0089] As shown in [Fig. 3], the diametrical section of the strip is frustoconical, with the upper side 103 delimiting a circle of larger diameter than the lower side 104. This frustoconical shape, starting from the flat strip I, can be obtained by any suitable means. In particular, the initial strip can be subjected to a passage between rollers whose arrangement and geometry are adapted to impart such a profile.

[0090] The mutual joining of the ends 105 and 106, belonging to the circle 100, is achieved in a manner known per se. In the illustrated example, each end is pierced with two respective holes 150, 152 and 160, 162. Rivets 170, 172 penetrate these holes, so as to ensure a permanent fixing between the two ends 105 and 106 of the circle 100 thus formed.

[0091] In the case of the riveting described above, the asymmetrical nature of the flaps can prove advantageous. Indeed, as shown in particular in [Fig. 4], the junction between the flaps is located away from the median axis X, at which point the riveting is performed. Consequently, the rivets are positioned at a point on the strip with a maximum amount of material, which makes this fastening more reliable. If the riveting were implemented at the junction between flaps, in the case of symmetry between them, the fixing could on the contrary be weakened.

[0092] Furthermore, the securing of the hoop 100 to the barrel body is implemented in a manner known per se, which will not be described in further detail below. Cooperage professionals can mount the hoop against the body manually, or mechanically using, for example, a press.

[0093] Preferably, the flaps 120 and 125 of the circle 100, formed from the flaps 20 and 25 of the band I, are provided on the inner face 102 of this circle, i.e., opposite the barrel. Similar to the flaps 20 and 25, the flaps 120 and 125 of the circle 100 are offset with respect to the axis referred to as the median transverse axis Y100 of the latter (see [Fig. 3]). In the illustrated example, with reference in particular to Figures 2 and 3, the gap 128 separating these flaps is oriented towards the smaller diameter of the truncated cone. However, this gap could also be provided on the flared side, depending on the specific constraints. The inner face 102 of the circle may be provided with striations, indentations or similar shapes, as has been schematically represented in [Fig.2].

[0094] The invention makes it possible to achieve the objectives mentioned above. It should first be noted that it is to the applicant's credit that they identified the origin of the technical problem underlying the present invention. To better illustrate this aspect, a strapping band III according to the prior art is shown in [Fig. 10]. In this [Fig. 10], the mechanical elements of band III, which are similar to those of band I according to the invention, are assigned the same reference numbers plus the number 400.

[0095] In the prior art, the strapping band III corresponds substantially to the blank 200 shown in [Fig. 9]. In particular, sides 403 and 404 of this band are not entirely covered by the coating material B. With reference to the larger-scale view in [Fig. 13], this side 404 defines a zone Z' in which the main material A is not protected by the material B, namely, that it is in contact with the ambient air. Under these conditions, this zone constitutes a potential source of corrosion of the band and subsequently of the circle formed from this band. It should be noted that this corrosion can occur not only on side 404 shown in larger scale in [Fig. 13], but also on the opposite side 403, which has an identical structure.

[0096] On the contrary, given its specific geometry, the strapping band I according to the invention has sides 3 and 4 that do not generate any risk of corrosion. Indeed, as shown in particular in [Fig. 1 1], the coating material B is present over the entire length of side 3, so as to protect the inner material A. The same is true for side 4, the structure of which is identical to that of side 3.

[0097] As seen above, the edges 221 and 226 of the blank 200 form the slices 21 and 26 of the flaps 20 and 25, belonging to the final strapping band I. As shown in the larger view of [Fig. 12], these slices do indeed delimit areas Z1 and Z2 of potential corrosion, given that the material A is in contact with ambient air. Nevertheless, the invention is significantly more advantageous than the prior art with respect to this corrosion problem.

[0098] First, zones ZI and Z2 are much more confined than those on sides 403-404 of the strip conforming to the prior art, so that corrosion phenomena are of a much lower magnitude. Furthermore, zones ZI and Z2 are located against the barrel once the circle 100 has been formed and then pressed against it. Consequently, any traces generated by corrosion are barely visible from the outside. This is to be compared with the prior art of [Fig. 10], for which sides 403-404 are particularly visible, since they form the upper and lower peripheries of the circle once it is formed.

[0099] Figure 14 illustrates a strapping band II, according to an alternative embodiment. In this Figure 14, the mechanical elements of band II, which are analogous to those of band I according to the main embodiment above, are assigned the same reference numbers plus the number 300.

[0100] Strip II differs from strip I, in particular in that it comprises a single flap 320 connecting to the beach 310 via a lip 330 defining the lateral side 303. In contrast, the opposite side 304 lacks a lip, being formed by the edges 311 and 321 of the beach 310 and the flap 320. It is understood that this variant is less preferred than the principal embodiment, since these edges 311 and 321 are not entirely covered by the coating material and, consequently, are potential sources of corrosion. However, this embodiment is more advantageous than the prior art, since this source of corrosion is present on only one lateral side 304, and not on both opposite sides 403 and 404 as in the prior art.

[0101] The invention offers numerous advantages. It facilitates the management of stockpiles of bands in a cooperage hoop manufacturing workshop. It allows for the supply of a less expensive raw material, namely a wide galvanized band, which replaces galvanized bands after cutting, given that galvanizing itself requires special equipment not usually found in a barrel hoop manufacturing workshop. The invention offers an additional, entirely unexpected advantage: The inventors observed that handling hoops made with a band according to the invention is significantly quieter than handling hoops made according to the prior art. This difference in noise level is very noticeable, for example, when such a circle is dropped from a given height (for example the height of a table) onto a concrete or tiled floor.

[0102] The metal strip according to the invention finds its application particularly in the technical field of coopering. However, it can also find applications outside this field of coopering. In particular, a galvanized metal strip according to the invention can be used as grounding for the bracing of buildings, or for shielding cables, especially submarine cables. For these applications, dimensions other than those stated in relation to cooperage applications can be used, and more generally, the total width of the strip can vary between approximately 1 mm and approximately 2,000 mm, and its thickness between approximately 0.1 mm and approximately 10 mm.

Claims

Demands

1. Metal band (I; II), in particular barrel strapping band (1000), said band comprising two opposite faces (1,2; 301,302), two opposite lateral sides (3,4; 303,304) and two opposite longitudinal ends (5, 6) capable of being mutually fixed, said band being characterized in that it comprises - a continuous beach (10; 310), extending continuously between the opposite sides, said beach defining a first face, - at least one flap (20,25; 320) each of which extends in the vicinity of a part of the beach, the flap(s) defining at least a part of the second face - at least one rim (3,4; 303) each of which connects a respective flap to the beach, each rim forming a respective lateral side of the band.

2. Metal band, in particular barrel strapping band (1000), according to claim 1, characterized in that it comprises two flaps (20,25) extending towards each other, these flaps delimiting an interval (28), this interval being in particular offset with respect to a median longitudinal axis (XX) of the band.

3. Metal band, in particular barrel strapping band (1000), according to claim 1 or 2, characterized in that said band comprises a main layer (A) made of a first material, in particular selected from raw steels, stainless steels, aluminum and aluminum alloys, brasses, copper and copper alloys, bronzes, and an outer coating layer (B) extending over at least a major part of the main layer, this coating layer being made of a second material, in particular selected from: zinc, organic-based coatings such as varnishes or paints.

4. Metal band, in particular barrel strapping band (1000), according to any one of claims 1 to 3, wherein at least one (3,4; 303) and preferably two (3,4) rim(s) is / are coated at least in part and preferably in full by said coating layer (B).

5. Metal band, in particular barrel strapping band (1000), according to the preceding claim, wherein each rim (3,4; 303) has a rounded outer profile, notably in the shape of a semicircle.

6. Metal band, in particular barrel strapping band (1000), according to any one of claims 1 to 5, having at least one and preferably all of the following characteristics - total thickness (E): between 0.7 and 10 mm - total length (L): between 300 and 20,000 mm - total width (1): between 10 and 120 mm - mass between 16 g and 200 kg.

7. Metal band, in particular barrel strapping band (1000), according to claim 6, having at least one and preferably all of the following characteristics - total thickness (E): between 1.5 and 5 mm - total length (L): between 1,000 and 10,000 mm - total width (1): between 30 and 70 mm - mass between 300 g and 30 kg.

8. A method for manufacturing a metal band, and in particular a barrel strapping band (1000) according to any one of claims 1 to 7, comprising the following steps: - supplying a blank (200) made of a material identical to that intended to form said band, said blank having a central region (210) as well as lateral regions (220,225), at least one edge (221,226) of the lateral regions not being covered by the coating layer - deformation of the lateral regions, so that the central region corresponds to the final range of the band, while the lateral regions correspond to the flaps of the band.

9. A hoop (100) for a barrel (1000), intended to extend around the periphery of a portion of a barrel of that barrel, said hoop comprising a main layer (A) made of a first material, in particular selected from raw steels, stainless steels, aluminum and aluminum alloys, brasses, copper and copper alloys, bronzes, and an outer coating layer (B) extending over at least a major portion of the main layer, this coating layer being made of a second material, in particular selected from: zinc, organic-based coatings such as varnishes or paints

10. said circle comprising two opposite faces (101,102), namely an inner face intended to be opposite the barrel of the cask, as well as an opposite outer face, two opposite lateral sides (103,104) as well as two opposite longitudinal ends (105,106), the circle further comprising means of fastening, in particular means of permanent fastening for example by riveting (170,172), between said opposite longitudinal ends, This circle is characterized by the fact that it comprises: - a continuous range (110), extending continuously between opposite sides, said range defining the outer face, - at least one flap (120,125), each extending near a part of the beach, the flap(s) defining at least one part of the inner face, and preferably two flaps extending towards each other - at least one rim (103,104), preferably two rims, each of which connects a respective flap to the beach, each rim forming a respective lateral side of the circle. Barrel (1000), comprising opposing walls (1001, 1002) and a body (1003) extending between these opposing walls, a part of the periphery of said body being covered by at least one circle (100) according to claim 9.

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