Wooden container and method for manufacturing same

Abstract

The invention relates to a wooden container for maturing and / or preserving a liquid, which comprises at least one wooden part (20, 30, 40, 50, 60, 70) consisting of at least one male wooden element (11) having a male profile (13) and at least one female wooden element (13) having a female profile (14), the shape of which is complementary to that of the male profile (13), the male wooden element (11) and the female wooden element (12) being assembled by nesting the male profile (13) in the female profile (14). The invention likewise relates to a method for manufacturing such a container and to a method for manufacturing wooden parts (20, 30, 40, 50, 60, 70).

Description

[0001]DESCRIPTION TITLE: Wooden container and method of manufacturing itTechnical fieldThe invention relates to the field of manufacturing containers designed to receive beverages, such as wines or spirits. In particular, the invention relates to the manufacture of wooden containers intended in particular for the maturation, aging and preservation of fermented beverages or the fermentation of sweet musts (grapes, apples, etc.). Preamble Maturation of fermented beverages in wooden containers is an important step in the production of these beverages since it allows in particular for compounds extractable from wood, such as tannins or aromatic compounds, to diffuse into the beverage, modifying its aroma and taste.Thus, these extractable compounds add to the complexity of the bouquet by bringing to the drink different aromatic notes of varying intensity and sensations such as "sweetness", "astringency", etc. The aging of wines and spirits, which constitutes an important stage in their production, is in fact carried out in closed wooden containers, generally made from oak wood but also sometimes from other types of wood such as chestnut or robinia (false acacia). In addition to allowing the diffusion of aroma into the drink, aging in such closed wooden containers allows a slow penetration of oxygen through the container, thus allowing a controlled oxidation of the substances present in the drink in such a way as to favorably modify the organoleptic characteristics of the drink such as its color, taste or smell.These closed wooden containers, which are subsequently used for the storage of wines and spirits, can have different volumes and shapes, and are commonly referred to as vats, barrels, casks, casks, tuns or even pieces. They are generally composed of a shell or hull forming a closed contour around a main axis, and two bases coming at the ends of this shell or hull. The shell or hull, which is generally circular or oval, is formed by a series of joined pieces of wood called staves, extending substantially along the main axis and held together by straps of metal bands or cables arranged in transverse planes and which surround the staves at different heights. The staves used to make such closed wooden containers are made from logs directly from the felling of selected trees.The logs are either split into staves (for containers up to 600l capacity) or sawn into blocks (for containers larger than 600l). These pieces are then dried and machined to obtain staves of a length and thickness suitable for the production of closed wooden containers for the aging of wines or spirits. Depending on the type of container, the staves must be of a significant length, up to 6.0 meters and even more in rare cases, and generally between 21 and 80 millimeters thick, in particular to ensure the container is watertight. However, the production of staves of appropriate dimensions is becoming increasingly difficult and expensive, for several reasons, including the scarcity and therefore the ever-increasing cost of solid wood pieces, or logs, used to make staves.There are also major production efficiency problems, as only a small portion of the logs can be used to directly manufacture staves of appropriate dimensions. Furthermore, the production of staves with appropriate dimensions and characteristics has the disadvantage of generating significant losses in the form of unused timber pieces that are too short and / or too thin. Among the existing solutions, finger-jointing techniques, consisting of gluing wooden elements of insufficient length end to end, make it possible to obtain staves of appropriate length. Such finger-jointing techniques are, for example, illustrated in document FR2949375 A1. On the other hand, glued-laminated techniques, consisting of gluing wooden elements of insufficient thickness face to face, also make it possible to obtain staves of suitable thickness.However, staves made using these techniques, even if they have the required dimensions, often do not withstand the container manufacturing process, which requires subjecting the staves to mechanical actions during bending, as well as a subsequent heat treatment consisting of heating the container in order to release the aromas of the wood. As a result, the different wooden elements constituting a single stave tend to separate from each other, and this phenomenon is particularly accentuated by the ambient humidity, generally high in cellars, to which the staves are subjected during the aging and conservation of the beverage in the container, and by the action of the beverage on the glue itself, which becomes less effective over time, its properties being affected by prolonged contact with the beverage.Furthermore, these known techniques, due to prolonged contact between the beverage and the glue used, cause the migration of constituents of the latter into the beverage, which has the consequence of contaminating it with organic compounds of synthetic origin while adversely modifying its aroma and taste. Finally, the aforementioned finger-jointing and / or glued-laminated techniques prove to be not very environmentally friendly, particularly at the end of the life of the containers since the presence of glue within the staves makes the burning and composting necessary for their elimination problematic and not very ecological. Summary of the inventionThe invention aims to remedy all or part of the aforementioned drawbacks. In particular, the invention relates in particular to a new method for manufacturing staves which is economical, efficient and ecological, ensuring in particular high productivity while reducing or even eliminating losses of raw materials.For this purpose and according to a first aspect, the invention relates to a male wooden element for the manufacture of a wooden container intended for the breeding and / or preservation of a liquid, the element having a length in a first direction of extension, a width in a second direction of extension and a thickness in a third direction of extension, the first, second and third directions of extension being orthogonal to each other, the length being greater than the width, the width being greater than the thickness, which element having on one of its faces defined by the length and the width of the element, a male profile extending along the length of the male wooden element and over all or part of its length. According to one possibility, the male wooden element has a substantially parallelepiped shape.The male wooden element therefore comprises six faces, which are opposite each other in pairs, each of the six faces having a surface area identical to the surface area of ​​the face to which it is opposite. According to one possibility, said liquid is a beverage, in particular a beverage intended for human consumption. The length of the male wooden element is conventionally measured along the main axis of extension, or longitudinal axis, of the male wooden element and is generally between 20 centimeters and 2.0 meters. The longitudinal axis, or main axis of extension, of the male wooden element therefore corresponds to the first direction of extension. According to a particular embodiment, said male profile extends over the entire length of the male wooden element. In other words, the male profile is produced in the direction of the length of the male wooden element and the length of the male profile is equivalent to that of the male wooden element.According to a particular embodiment, the male wooden element may have at least two, and preferably exactly two, male profiles of equivalent or non-equivalent shape, located on the same face defined by the length and width of the male wooden element, and extending parallel to each other. This embodiment is particularly advantageous when the male wooden element has a significant width. In addition, such a male wooden element having two male profiles on the same face may be assembled to two female wooden elements having female profiles of complementary shape in order to ultimately obtain a wooden piece, or stave, of significant width. The width of the male wooden element is conventionally measured along a transverse axis of the male wooden element, which is orthogonal, i.e. perpendicular, to the longitudinal axis of the male wooden element.In other words, the second direction of extension is effectively perpendicular to the first direction of extension. The width of the male wooden element is generally between 2 and 50 centimeters and is strictly less than the length of the male wooden element. According to one possibility, the length of the male wooden element is at least twice the width of the male wooden element. According to one possibility, the length of the male wooden element is at least five times the width of the male wooden element. According to one possibility, the length of the male wooden element is at least ten times the width of the male wooden element. According to one possibility, the length of the male wooden element is at least twenty times the width of the male wooden element.According to one possibility, the male wooden element has, on a first face defined by its length and its width, a first male profile extending in the first direction of extension and over all or part of the length of the male wooden element, and, on a second face opposite said first face, a second male profile extending in the first direction of extension and over all or part of the length of the male wooden element. This possibility is particularly advantageous when the male wooden element has a small thickness. The thickness of the male wooden element is conventionally measured along an orthogonal axis, that is to say perpendicular, to both the first direction of extension and the second direction of extension of the male wooden element. The thickness is generally between 1 and 4 centimeters, and is strictly less than the width of the male wooden element.According to one possibility, the width of the male wooden element is at least twice the thickness of the male wooden element. According to one possibility, the length of the male wooden element is at least 20 times the thickness of the male wooden element. According to one possibility, the length of the male wooden element is at least 50 times the thickness of the male wooden element. Thus, one of the two faces of the female wooden element defined by the length and width of the female wooden element therefore has a surface area greater than the other four faces of the female wooden element. Thus, the two faces of the male wooden element defined by the length and width of the male wooden element correspond to the two main faces of the male wooden element. Advantageously, it is at least one of these two main faces which has the male profile.According to a second aspect, the invention relates to a female wooden element for manufacturing a wooden container intended for raising and / or preserving a liquid, the element having a length in a first direction of extension, a width in a second direction of extension and a thickness in a third direction of extension, the first, second and third directions of extension being orthogonal to each other, the length being greater than the width, the width being greater than the thickness, which element having on one of its faces defined by the length and the width of the element, a female profile extending along the length of the male wooden element and over all or part of its length. According to one possibility, the female wooden element has a substantially parallelepiped shape.The female wooden element therefore comprises six faces, which are opposed in pairs, each of the six faces having a surface identical to the surface of the face to which it is opposed. According to one possibility, said liquid is a beverage, in particular a beverage intended for human consumption. The length of the female wooden element is conventionally measured along the main axis of extension, or longitudinal axis, of the male wooden element and is generally between 20 centimeters and 2.0 meters. The longitudinal axis, or main axis of extension, of the male wooden element therefore corresponds to the first direction of extension. According to a particular embodiment, said female profile extends over the entire length of the female wooden element. In other words, the female profile is produced in the direction of the length of the female wooden element, and the length of the female profile is equivalent to that of the female wooden element.According to a particular embodiment, the female wooden element may have at least two, and preferably exactly two female profiles, of equivalent or non-equivalent shape, located on the same face defined by the length and width of the female wooden element, and extending parallel to each other. This embodiment is particularly advantageous when the female wooden element has a significant width. In addition, such a female wooden element having two female profiles on the same face defined by its length and width may be assembled to two male wooden elements having male profiles of complementary shape in order to ultimately allow the production of a wooden piece, or stave, of significant width. The width of the female wooden element is conventionally measured along a transverse axis of the male wooden element, which is orthogonal, i.e. perpendicular, to the longitudinal axis of the male wooden element.In other words, the second direction of extension is effectively perpendicular to the first direction of extension. The width of the female wooden element is generally between 2 and 50 centimeters and is strictly less than the length of the female wooden element. According to one possibility, the length of the female wooden element is at least twice the width of the female wooden element. According to one possibility, the length of the female wooden element is at least five times the width of the female wooden element. According to one possibility, the length of the female wooden element is at least ten times the width of the female wooden element. According to one possibility, the length of the female wooden element is at least twenty times the width of the female wooden element.According to one possibility, the female wooden element has, on a first face defined by its length and its width, a first female profile extending along the longitudinal axis and over all or part of the length of the female wooden element, and, on a second face opposite said first face, a second female profile extending along the longitudinal axis and over all or part of the length of the female wooden element. This possibility is particularly advantageous when the female wooden element has a small thickness. The thickness of the female wooden element is conventionally measured along an orthogonal axis, that is to say perpendicular, to both the first direction of extension and the second direction of extension of the female wooden element. The thickness is generally between 1 and 2 centimeters, and is strictly less than the width of the female wooden element.According to one possibility, the width of the female wooden element is at least twice the thickness of the female wooden element. According to one possibility, the length of the female wooden element is at least 20 times the thickness of the female wooden element. According to one possibility, the length of the female wooden element is at least 50 times the thickness of the female wooden element. Thus, one of the two faces of the female wooden element defined by the length and width of the female wooden element therefore has a surface area greater than the other four faces of the female wooden element. Thus, the two faces of the female wooden element defined by the length and width of the female wooden element correspond to the two main faces of the female wooden element. Advantageously, it is at least one of these two main faces that has the female profile.Obviously, other possibilities are provided without departing from the scope of the present invention. For example, the present invention also relates to a mixed wood element which has, on a first face defined by its length and its width, a female profile extending along the longitudinal axis and over all or part of the length of the female wood element, and, on a second face opposite said first face, a male profile extending along the longitudinal axis and over all or part of the length of the female wood element. According to a third aspect, the invention relates to a wooden part comprising a male wood element and a female wood element as described above, said male profile having a shape complementarity with said female profile.According to one embodiment, the wooden part results from the assembly between them of the male wooden element and the female wooden element, such assembly being carried out by fitting said male profile into said female profile, a thickness of the wooden part being greater than the thickness of the male wooden element and the thickness of the female wooden element. According to one possibility, the fitting of the male profile into the female profile is carried out by means of a translation or sliding of the male profile along the female profile, such translation or sliding being carried out in the lengthwise direction. According to another possibility, the male profile is simply "clipped" into the female profile, for example by means of a transverse force exerted on the male wooden element with its male profile arranged directly opposite the female profile of the female wooden element.The invention therefore makes it possible to obtain, from two wooden elements of lesser thickness, a piece of wood of greater thickness. The invention therefore takes advantage of the existence of scraps of insufficient thickness to produce staves having the desired thickness by stacking the scraps. Thus, production is increased and yield improved, without any significant ecological impact since more is produced without using more raw material.According to one embodiment, the wooden part comprises a plurality of male wooden elements as described above, and a plurality of female wooden elements as described above, each of the male profiles having a shape complementarity with at least one of the female profiles, a length of the wooden part being greater than the length of the male wooden element and the length of the female wooden element. According to this embodiment, two male wooden elements are assembled to the same female wooden element, which has on a first face, a first female profile arranged to receive a male profile of one of said two male wooden elements, and, on a second face opposite the first face, a second female profile arranged to receive a male profile of the other of said two male wooden elements.According to this embodiment variant, it is thus possible to assemble three wooden elements together, thus making it possible to obtain a wooden part having a significant thickness. Obviously, other possibilities are conceivable, and this without departing from the scope of the present invention. For example, it is possible to assemble, in a manner similar to that described above, two female wooden elements to the same male wooden element, or a male wooden element and a female wooden element to the same mixed wooden element. In fact, the invention is not limited to the assembly of two or three wooden elements, and it is possible to envisage assembling a larger number of them, the objective being to obtain a composite wooden part of sufficient thickness. According to a particular embodiment, two male wooden elements are assembled "offset" to the same female wooden element.In other words, the female wooden element has, on one of its faces, a female profile on which a part of a male profile of each of said two male wooden elements fits. According to this particular embodiment, a part of a male profile of one of said male wooden elements fits into the female profile of the female wooden element over a first part of the length of the female wooden element, and a part of a male profile of the other of said male wooden elements fits into the female profile of the female wooden element over a second part of the length of the female wooden element, the sum of said first part and said second part representing the total length of the female wooden element.Since each of the two aforementioned male profiles is only partially fitted into the female profile, it is possible to assemble, on each of the two male wooden elements, two other female wooden elements of suitable length respectively in order to obtain, ultimately, an assembly of five wooden elements having a satisfactory total length, while having a thickness greater than that of each of the initial male and female wooden elements. By means of such an “offset” assembly of a plurality of male and female wooden elements, it is therefore possible to produce wooden pieces, or staves, of significant length from wooden elements of limited length.Alternatively, a similar offset joint, made not lengthwise but widthwise of timber members, may be used to produce a timber or stave of sufficient width from narrow timber members. In this alternative, an offset joint is made by at least one male timber member having two male profiles located on the same face and extending parallel to each other and at least one female timber member having two female profiles located on the same face and extending parallel to each other. Further male and female timber members, having one or two profiles on the same face, complete the joint to produce a timber of adequate width.Thus and according to the invention, it is possible, from wooden elements of too small a length, width and thickness, to obtain, by successive assembly of such wooden elements, wooden pieces, commonly referred to as "staves" having both a length and a thickness suitable for use in the production of wooden containers intended for breeding and / or storing a liquid. Compared to existing techniques, the invention therefore makes it possible to reduce losses and increase production while having a positive effect on the environment since the use of chemicals, such as synthetic glues, is considerably reduced, or even non-existent, during the manufacture of the staves, which also means that the risk of contamination of the drink is low or even zero.Furthermore, compared to known finger-jointing and glued laminated techniques, the invention allows the production of staves that are more robust and therefore resistant to the subsequent treatments (bending, heating) that they undergo during the manufacture of wooden containers. In addition, the staves obtained by the present invention have a high level of sealing. According to a fourth aspect, the invention relates to a shell of a wooden container intended for breeding and / or preserving a liquid, which shell comprises at least one wooden part as described above. A wooden container generally comprises a closed shell of cylindrical, circular, oval or truncated cone shape, and two parallel bottom plates, said closed shell comprising at least one wooden part as described above. According to this embodiment, the closed shell comprises a plurality of wooden parts, or staves, as described above.According to one possibility, at least one of the two bottom plates also comprises a plurality of wooden pieces as described above. Thus and according to a fifth aspect, the invention relates to a bottom of a wooden container intended for raising and / or preserving a liquid, which bottom comprises at least one wooden piece as described above.According to a sixth aspect, the invention relates to a method for manufacturing a wooden part, said method comprising the following steps: - a step of cutting solid wood to obtain a first piece of wood of substantially parallelepiped shape and a second piece of wood of substantially parallelepiped shape; - a step of machining the first piece of wood obtained in the cutting step to obtain a male wooden element as described above; - a step of machining the second piece of wood obtained in the cutting step to obtain a female wooden element as described above; - a step of assembling the male wooden element and the female wooden element so as to obtain at least one wooden part as described above. According to one embodiment, the assembly step comprises at least one step of fitting a male profile into a female profile of corresponding shape.According to one possibility, the fitting of a male profile into a female profile is achieved by means of a translation or sliding of the male profile along the female profile, such translation or sliding being achieved in the lengthwise direction. According to another possibility, the male profile is simply "clipped" into the female profile, by means of a transverse force exerted on the male wooden element with its male profile arranged directly opposite the female profile of the female wooden element.Optionally, the interlocking by translation and / or by “clipping” can be facilitated by using a small quantity of food lubricants such as paraffins, silicones, waxes, oils or even gums… According to this option, the arrangement of a small quantity of a food lubricant at the bottom of the female profile of the female wooden element will facilitate the interlocking of the male wooden element while preventing the food lubricant, then trapped between the two male and female wooden elements at the bottom of the female profile, from coming into contact with the beverage once the container is manufactured.According to a seventh aspect, the invention relates to a method for manufacturing a shell of a wooden container intended for raising and / or preserving a liquid, said method comprising the following steps: - The manufacture, according to the steps of the method for manufacturing a wooden part as described above, of a plurality of wooden parts as described above; - A step of assembling together the plurality of wooden parts thus obtained in order to form a shell of a wooden container as described above. According to one possibility, said assembly between them of the plurality of wooden parts is carried out by bending.According to one possibility, the method for manufacturing a shell of a wooden container described above comprises a step of clamping the plurality of wooden pieces thus assembled together, such clamping being carried out by means of strapping arranged in planes transverse to the shell and configured so as to obtain sufficient pressure between the lateral faces of the wooden pieces thus assembled together to ensure a seal. According to a seventh aspect, the invention relates to a method for manufacturing a wooden container described above, which comprises a step of fixing two bottoms to the shell obtained by the method for manufacturing a shell, said bottoms being arranged at the two ends of the shell.These operations for manufacturing a barrel or cask from staves are known per se, and it is possible to refer for example to document EP3653355 A1 which provides in detail the information necessary for the manufacture of a wooden container for drinks from staves. According to one embodiment, at least one of the two bottoms is produced by assembling staves, or wooden pieces, manufactured according to the method for manufacturing a wooden piece previously described. Brief description of the figures The invention will be better understood, and its inherent advantages better appreciated, on reading the detailed description below, made with reference to the figures among which: Figure 1 represents, according to a first embodiment, a female wooden element having a female profile and a male wooden element having a male profile of a shape complementary to the shape of the female profile.Figure 2a shows a top and sectional view of a wooden part, or stave, according to a second embodiment. Figure 2b shows a side and sectional view of the wooden part according to the second embodiment. Figure 2c shows a perspective view of a closed shell of a wooden container comprising a plurality of wooden parts according to the second embodiment. Figure 3a shows a top and sectional view of a wooden part, or stave, according to a third embodiment. Figure 3b shows a side and sectional view of a wooden part, or stave, according to the third embodiment. Figure 4 shows a perspective view of a closed shell of a wooden container comprising a plurality of wooden parts according to a fourth embodiment of the invention. Figure 5 shows a top and sectional view of a wooden part, or stave, according to a fifth embodiment of the invention.Figure 6 represents a top and sectional view of a wooden piece, or stave, according to a sixth embodiment of the invention. Figure 7 represents a top and sectional view of a wooden piece, or stave, according to a seventh embodiment of the invention. Detailed description The male wooden element 11 and the female wooden element 12 shown in Figure 1, of the same length and the same width, respectively have a male profile 13 and a female profile 14 whose shapes correspond, so that a fitting of the male profile 13 into the female profile 14 makes it possible to assemble the two male 11 and female 12 wooden elements in order to obtain a composite wooden piece having a length and a width identical to that of the two wooden elements, and a thickness greater than that of both the male wooden element and that of the female wooden element.The wooden piece, or stave, obtained by assembling the two wooden elements shown in Figure 1, has in particular a sufficient thickness to be used for the production of a barrel or a cask. The composite wooden piece 20, or stave, shown in Figure 2a or Figure 2b, is composed of a male wooden element (numbered 2) having a male dovetail profile, and a female wooden element (numbered 1) having a female profile complementary to said male dovetail profile. The wooden piece 20 shown in Figure 2a therefore has a thickness, defined along the X axis shown in Figure 2a, greater than the thickness of each of the two wooden elements that compose it. The X axis therefore represents the third direction of extension of the male and female wooden elements.It is noted that, in the embodiment shown in Figures 2a to 2c, the male wooden element and the female wooden element have the same width as shown in Figure 2a (defined along the Y axis visible in Figure 2a), and the same length (defined along the Z axis visible in Figure 2b) as can be seen in Figure 2b. Thus, the embodiment of Figures 2a to 2c makes it possible to obtain, from two thin male and female wooden elements, a composite wood part of greater thickness whose length and width are respectively equal to the length and width of the two male and female wooden elements. In the figures, the Z axis represents the first direction of extension of the male and female wooden elements, and the Y axis represents the second direction of extension of the male and female wooden elements.For example, from two wooden elements, male and female respectively, of identical dimensions equal to 1000mm x 50mm x 20mm, the invention makes it possible to obtain a wooden part, or stave, of dimensions equal to 1000mm x 50mm x 27mm. Such a wooden part of suitable thickness can thus be used in the production of a closed shell 25 of a wooden container as shown in Figure 2c, which in fact comprises a plurality of composite wooden parts 20 thus manufactured and assembled together. The embodiment shown in Figures 3a and 3b uses three male wooden elements (numbered 2, 4 and 6 in Figure 3b) and three female wooden elements (numbered 1, 3 and 5 in Figure 3b) assembled together offset in the length direction in order to form a composite wooden part 30 having both a length and a thickness greater than those of each of the male and female wooden elements.According to the embodiment of Figures 3a and 3b, the male wooden elements numbered 2 and 4 and the female wooden elements numbered 3 and 5 all have the same length, while the male wooden element 6 and the female wooden element 1 have the same length equal to half that of the elements 2, 3, 4 and 5. According to the embodiment of Figures 3a and 3b, the male wooden elements all have the same thickness and the same male profile. The female wooden elements, for their part, also have the same thickness and the same female profile of a shape corresponding to the male profile of the three male elements. The assembly according to the embodiment of Figures 3a and 3b makes it possible to obtain a composite wood part having a length 2.5 times greater than the length of the elements 2, 3, 4 and 5.Figure 4 shows a closed shell 45 of a wooden container, which is composed of composite wooden parts 40 comparable to the wooden part 30 of the embodiment of Figures 3a and 4b, except that said wooden parts 40 comprise three male wooden elements and two female wooden elements. Here too, the composite wooden parts 40 assembled to form the shell 45 of Figure 4 have a length and a thickness respectively greater than the lengths and thicknesses of the male and female wooden elements that compose them. Like the embodiment of Figures 2a and 2c, the embodiment of Figures 3a and 3b and that of Figure 4 uses wooden elements having a dovetail type profile.Other types of profile, such as those used to make the wooden part 50 of Figure 5 or the wooden part 60 of Figure 6 and which are given as a non-limiting example, can obviously be used without departing from the scope of the present invention. Thus, the particular shape of the male and female profiles is adapted according to the properties of the species used, the lengths of the staves to be obtained, the angles of curvature that they will have to withstand or even the mechanical constraints specific to each wooden container to be manufactured. In addition and as shown in Figures 6 or 7, the invention is not limited to a single nesting zone, because certain wooden parts, such as the wooden part 60 or the wooden part 70, may require multiple nestings in order to meet the tensile, pressure, shear and fatigue constraints that they will have to withstand throughout their life.Furthermore, the wooden elements constituting the wooden parts 60 or 70 can be advantageously used in an offset assembly made, not in the length direction as shown in figures 3a, 3b or 4, but in the width direction of the elements in order to allow the obtaining of a composite wooden part of greater width.

Claims

CLAIMS 1. Wooden part (20, 30, 40, 50, 60, 70) for the manufacture of a wooden container intended for the breeding and / or preservation of a liquid, comprising: - a male wooden element (11) having a length in a first direction of extension (Z), a width in a second direction of extension (Y) and a thickness in a third direction of extension (X), the first second and third directions of extension being orthogonal to each other, the length being greater than the width, the width being greater than the thickness, which male wooden element (11) having on one of its faces defined by its length and its width a male profile (13) extending along the length of the male wooden element (11) and over its entire length;- a female wooden element (12) having a length in a first direction of extension (Z), a width in a second direction of extension (Y) and a thickness in a third direction of extension (X), the first, second and third directions of extension being orthogonal to each other, the length being greater than the width, the width being greater than the thickness, which element (12) having on one of its faces defined by its length and its width a female profile (14) extending along the length of the female wooden element (12) and over its entire length, said female profile (14) having a complementary shape with said male profile (13);the wooden part (20, 30, 40, 50, 60, 70) resulting from the assembly between them of the male wooden part (11) and the female wooden part (12) in such a way that a thickness of the wooden part (20, 30, 40, 50, 60, 70) is greater than the thickness of the male wooden element (11) and the thickness of the female wooden element (12).; 2. A wooden part (20, 30, 40, 50, 60, 70) according to claim 1, wherein the male profile (13) comprises a dovetail profile.

3. A wooden part (20, 30, 40, 50, 60, 70) according to claim 1 or claim 2, which comprises a plurality of male wooden elements (11) and a plurality of female wooden elements (12), each of the male profiles (13) having a form complementarity with at least one of the female profiles (14), a length of the wooden part (20, 30, 40, 50, 60, 70) being greater than the length of the male wooden element (11) and the length of the female wooden element (12).

4. Shell (25, 45) of a wooden container intended for the breeding and / or preservation of a liquid, which shell (25, 45) comprises at least one wooden part (20, 30, 40, 50, 60, 70) according to one of claims 1 to 3. 5.Bottom of a wooden container intended for raising and / or preserving a liquid, which bottom comprises at least one wooden piece (20, 30, 40, 50, 60, 70) according to one of claims 1 to 3.

6. Method for manufacturing a wooden piece (20, 30, 40, 50, 60, 70) according to one of claims 1 to 3, said method comprising the following steps: - A step of cutting solid wood to obtain a first piece of wood of substantially parallelepiped shape and a second piece of wood of substantially parallelepiped shape; - A step of machining the first piece of wood obtained in the cutting step to obtain a male wooden element (11); - A step of machining the second piece of wood obtained in the cutting step to obtain a female wooden element (12); - A step of assembling the male wooden element (11) and the female wooden element (12) so as to obtain a wooden part (20, 30, 40, 50, 60, 70). 7.Manufacturing method according to claim 6, in which the assembly step comprises at least one step of fitting a male profile (13) into a female profile (14) of corresponding shape.

8. A method of manufacturing a shell (25, 45) of a wooden container intended for raising and / or preserving a liquid, said method comprising the following steps: - A step of manufacturing, according to the method of manufacturing a wooden part (20, 30, 40, 50, 60, 70) of claims 6 or 7, a plurality of wooden parts (20, 30, 40, 50, 60, 70) according to one of claims 1 to 3; - A step of assembling together the plurality of wooden parts (20, 30, 40, 50, 60, 70) obtained in the manufacturing step, in order to form a shell (25, 45) according to claim 4.

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