BE1025163B1 - WOODEN BOX - Google Patents

Abstract

The invention relates to a wooden case (100) comprising: - a bottom (102), - two support walls (104a-b) facing one another, - two bonded walls (106a-b) facing each other. from each other, each supporting wall (104a-b) having in the lower part a first recess extending horizontally between the two bonded walls (106a-b), and wherein the bottom (102) is housed and glued into the first two recesses, each support wall (104a-b) having two lateral recesses (108a-b), each extending vertically along one of the vertical sides of said support wall (104a-b), for each bonded wall (106a-b), its first vertical flank is housed and glued in one of the lateral recesses (108a-b) of one of the support walls (104a-b) and its second vertical flank is housed and glued in one of the lateral recesses (108a-b) of the other support wall (104b-a), and wherein the depth of each lateral recess (108a-b), perpendicularly at the glued walls (106a-b), is equal to the thickness of the glued wall (106a-b) which is glued to it.

Description

TECHNICAL AREA

The present invention relates to a wooden case, as well as a method of manufacturing such a wooden case.

STATE OF THE PRIOR ART

A wooden case conventionally has a rectangular bottom and four side walls.

Depending on the type of body, the attachment of the side walls varies.

For example, it is known to fix the four sides to each other directly using corner clips.

If such wooden boxes are resistant to wear, there may be problems. For example, some staples can come loose and injure people carrying the case. In addition, the installation of staples requires relatively heavy and bulky machines.

In some manufacturers, particularly in the food sector, these stapled boxes cannot pass through metal detectors to ensure that there are no pieces of metal in the food.

STATEMENT OF THE INVENTION

An object of the present invention is to provide a wooden case which does not have roughness and metallic elements and whose manufacturing process is simple.

For this purpose, a wooden box is proposed comprising:

- a fund,

- two support walls facing each other,

- two walls glued facing each other, each support wall having in the lower part a first recess extending horizontally between the two glued walls, and where the bottom is housed and glued in the first two recesses, each wall support having two lateral recesses, each extending vertically along one of the vertical flanks of said support wall, for each glued wall, its first vertical flank is housed and glued in one of the recesses

BE2018 / 5022 lateral of one of the support walls and its second vertical flank is housed and glued in one of the lateral recesses of the other support wall, and where the depth of each lateral recess, perpendicular to the glued walls, is equal to l thickness of the glued wall which is glued to it.

Advantageously, the glue is a hot-melt glue.

Advantageously, the depth of the first recesses in the vertical direction is greater than the thickness of the bottom, the upper part of each support wall has, between the glued walls, an extension which extends beyond the glued walls, and the distance between the outer faces of the two extensions is at most equal to the inner distance between the first two recesses.

Advantageously, the inner face of each extension has a horizontal groove, and the box has a cover which is placed in the two horizontal grooves facing each other.

Advantageously, the vertical surface of each first recess has an angle which is such that the vertical surface progresses from the inside towards the outside while progressing from the top to the bottom.

Advantageously, the outer face of each extension has an angle which is such that the outer face progresses from the inside to the outside while progressing from top to bottom.

Advantageously, each support wall has at least one groove disposed opposite a groove of the other support wall, the two grooves extend vertically, and the body has a separation which is placed in the two opposite grooves.

Advantageously, each support wall comprises a tenon produced in the upper part of the support wall and a mortise produced in the lower part of the support wall.

The invention also provides a method of manufacturing a wooden case, said method comprising:

- a supply step during which a base, two support walls and two bonded walls are supplied,

a first milling step during which each vertical flank of each support wall is milled so as to produce lateral recesses,

a second milling step during which the lower part of each support wall is milled so as to produce a first recess,

BE2018 / 5022

- a removal step during which glue is deposited along each recess,

a bonding step during which the bottom is glued in the first two recesses, and a first vertical flank of each glued wall is glued in one of the lateral recesses of one of the support walls and a second vertical flank of each wall glued is glued in one of the lateral recesses of the other support wall, where the milling depth during the first milling step, perpendicular to the glued walls when they are glued, is equal to the thickness of the glued wall which is stuck to it.

Advantageously, the manufacturing process comprises, between the supply step and the removal step, a third milling step during which the upper part of each support wall is milled using a milling machine, so to release extensions.

BRIEF DESCRIPTION OF THE DRAWINGS

The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in relation to the accompanying drawings, among which:

Fig. 1 is a perspective view of a wooden case according to the invention, FIG. 2 is a top view of the box of FIG. 1, and FIG. 3 is a section through the box of FIG. 2 along line III-III.

DETAILED DESCRIPTION OF EMBODIMENTS

In the following description, the terms relating to a position are taken with reference to a box placed in the position of use, that is to say placed on its bottom with its opening upwards as shown in FIG. 1.

Fig. 1 shows a box 100 which includes a bottom 102 and four side walls. The bottom 102 and the side walls are made of wooden plates.

In particular, the bottom 102 can be composed either of a board corresponding to the total surface of the bottom or of several boards with a "clear track".

Among the side walls, the box 100 has two support walls 104a-b and two bonded walls 106a-b. In the packaging field, the support walls 104a-b

BE2018 / 5022 are conventionally the short sides also called "packing heads" and the glued walls are conventionally called "sides".

The two support walls 104a-b are facing each other and the two glued walls 106a-b are facing each other. Each support wall 104a-b is interposed between the two glued walls 106a-b and in the same way, each glued wall 106a-b is interposed between the two support walls 104a-b.

Fig. 2 and FIG. 3 show box 100.

In the embodiment of the invention presented in Figs., The box 100 has the shape of a rectangular parallelepiped, where the two support walls 104a-b are mutually parallel, where the glued walls 106a-b are parallel to each other and where the support walls 104a-b are perpendicular to the glued walls 106a-b.

In another embodiment of the invention, the walls 104a-b, 106a-b can take a different orientation and the box 100 then has the shape of a truncated pyramid with the small base at the bottom and the large base at the opening level. This embodiment also allows stacking of 100 empty boxes.

Each support wall 104a-b has a first recess 302a-b in the lower part, so that the lower part of each support wall 104a-b takes the form of an L-shaped angle iron open towards the bottom and inside the body 100. Each first recess 302a-b extends horizontally between the two bonded walls 106ab and here perpendicular to the two bonded walls 106a-b.

The bottom 102 is housed and glued in the first two recesses 302a-b.

Each support wall 104a-b has two lateral recesses 108a-b, each extending vertically along one of the vertical sides of said support wall 104a-b. Each of the vertical sides of the support walls 104a-b thus takes the form of an L-shaped angle iron open towards the outside and the support wall 104a-b facing each other.

When the body 100 is assembled, each lateral recess 108a-b of one of the support walls 104a-b is opposite one of the lateral recesses 108a-b of the other support wall 104b-a.

For each glued wall 106a-b, its first vertical flank is housed and glued in one of the lateral recesses 108a-b of one of the support walls 104a-b and its second vertical flank is housed and glued in one of the lateral recesses 108a- b from the other support wall 104b-a.

BE2018 / 5022

The depth of each lateral recess 108a-b, perpendicular to the glued walls 106a-b, is equal to the thickness of the glued wall 106a-b which is glued to it.

The structure of the body 100 makes it possible to have a rigid body which does not present any risk of roughness on the sides and which also does not have any staples.

The bonding of the bottom 102 and the bonding of the bonded walls 106a-b is carried out using a hot-melt adhesive ("hot-melt" in English), and preferably based on polyurethane.

In order to facilitate the stacking of the boxes 100, the depth of the first recesses 302a-b in the vertical direction is greater than the thickness of the bottom 102 so as to leave a space between the bottom of the support walls 104a-b and the underside from the bottom 102, and the upper part of each support wall 104a-b has, between the glued walls 106a-b, an extension 110a-b which extends beyond the glued walls 106a-b. The distance between the external faces of the two extensions 1 lOa-b, that is to say the faces which are opposite one another, is at most equal to the internal distance between the first two recesses 302a-b, that is to say between the faces opposite one another. Thus, it is possible to accommodate the extensions 110a-b between the first two recesses 302a-b as shown in FIG. 3.

In order to facilitate the positioning of the bottom 102, the vertical surface of each first recess 302a-b has an angle which is such that the vertical surface progresses from the inside towards the outside, progressing from top to bottom. That is to say that the vertical surfaces of the first recesses 302a-b which are opposite move away from each other progressing from top to bottom.

In order to facilitate stacking, the outer face of each extension 110a-b has an angle which is such that the outer face progresses from the inside to the outside while progressing from top to bottom. That is to say, the outer faces of the extensions 1 lOa-b move away from each other progressing from top to bottom.

The process for manufacturing the box 100 consists of:

a supply step during which the base 102, two support walls 104a-b and two bonded walls 106a-b are supplied,

a first milling step during which each vertical flank of each support wall 104a-b is milled using a milling machine, so as to produce the lateral recesses 108a-b,

BE2018 / 5022

a second milling step during which the lower part of each support wall 104a-b is milled using a milling machine, so as to produce the first recess 302a-b,

a removal step during which glue is deposited along each recess 302a-b, 108a-b,

a bonding step during which the bottom 102 is bonded in the first two recesses 302a-b, and a first vertical flank of each bonded wall 106ab is bonded in one of the lateral recesses 108a-b of one of the support walls 104a-b and a second vertical flank of each bonded wall 106a-b is bonded in one of the lateral recesses 108a-b of the other support wall 104b-a.

The milling depth during the first milling step, perpendicular to the bonded walls 106a-b when bonded, is equal to the thickness of the bonded wall 106a-b which is bonded to it.

In the case where the body 100 has extensions 110a-b, the manufacturing process comprises, between the supply step and the removal step, a third milling step during which the upper part of each support wall 104a b undergoes a milling using a milling machine, so as to release the extensions 110a-b.

Milling makes it possible to obtain rough surfaces which facilitate subsequent bonding and which facilitate the penetration of the glue into the interstices of the wood, thereby strengthening the setting of the glue and the rigidity of the box 100.

In the embodiment of the invention presented in FIG. 1, each support wall 104a-b has at least one groove 150a-b. For each groove 150a-b of a support wall 104a-b, the other support wall 104b-a has a groove 150b-a and the two grooves 150a-b extend vertically one opposite the other. Each pair of grooves 105a-b allows the establishment of a separation 152 which makes it possible to compartmentalize the box 100. Each groove 150a-b is produced by milling before the removal step.

It is also possible to provide for the fitting of a cover. To do this, a horizontal groove 154 is produced in the inner face of each extension 110a-b, that is to say the faces which are opposite one another. The cover can then be introduced into the horizontal grooves 154 opposite. The horizontal grooves 154 extend here over the entire length of the extensions 1 10a-b.

BE2018 / 5022

To ensure indexing of the boxes 100 when they are stacked, each support wall 104a-b comprises a tenon 160 and a mortise 162. The tenon 160 is produced in the upper part of the support wall 104a, and the mortise is produced in the lower part of the support wall 104a. Thus, during stacking, the lug 160 of the lower body 100 100 is housed in the mortise 162 of the upper body 100.

In Fig. 1 and for ease of representation, only the support wall 104a has such a tenon-mortise association.

Claims (10)

1) Wooden case (100) comprising: - a background (102), - two support walls (104a-b) facing each other, - two bonded walls (106a-b) facing each other, each support wall (104a-b) having in the lower part a first recess (302a-b) extending horizontally between the two bonded walls (106a -b), and where the bottom (102) is housed and glued in the first two recesses (302a-b), each support wall (104a-b) having two lateral recesses (108a-b), each extending vertically along one of the vertical flanks of said support wall (104a-b), for each glued wall (106a-b), its first vertical flank is housed and glued in one of the lateral recesses (108a-b) of one of the support walls (104a-b) and its second vertical flank is housed and glued in one of the lateral recesses (108a-b) of the other support wall (104b-a), and where the depth of each lateral recess (108a-b ), perpendicular to the glued walls (106a-b), is equal to the thickness of the glued wall (106a-b) which is glued to it. 2) Box (100) according to claim 1, characterized in that the glue is a hot-melt glue. 3) Box (100) according to one of claims 1 or 2, characterized in that the depth of the first recesses (302a-b) in the vertical direction is greater than the thickness of the bottom (102), in that the upper part of each support wall (104a-b) has, between the glued walls (106a-b), an extension (110a-b) which extends beyond the glued walls (106a-b), and in that the distance between the exterior faces of the two extensions (11 Oa-b) is at most equal to the interior distance between the first two recesses (302a-b). 4) Box (100) according to claim 3, characterized in that the inner face of each extension (11 Oa-b) has a horizontal groove (154), and in that the box (100) has a cover which is placed in the two horizontal grooves (154) opposite. BE2018 / 5022 5) Box (100) according to one of claims 3 or 4, characterized in that the vertical surface of each first recess (302a-b) has an angle which is such that the vertical surface progresses from the inside towards the outside, progressing from top to bottom. 6) Box (100) according to claim 5, characterized in that the outer face of each extension (110a-b) has an angle which is such that the outer face progresses from the inside towards the outside while progressing from top to the bottom. 7) Box (100) according to one of claims 1 to 6, characterized in that each support wall (104a-b) has at least one groove (150a-b) disposed opposite a groove (150b-a) from the other support wall (104b-a), in that the two grooves (150ab) extend vertically, and in that the body (100) has a partition (152) which is placed in the two grooves (150a -b) opposite. 8) Box (100) according to one of claims 1 to 7, characterized in that each support wall (104a-b) comprises a stud (160) formed in the upper part of the support wall (104a) and a mortise (162 ) made in the lower part of the support wall (104a). 9) Method for manufacturing a wooden case (100), said method comprising: a supply step during which a bottom (102), two support walls (104a-b) and two bonded walls (106a-b) are supplied, a first milling step during which each vertical flank of each support wall (104a-b) undergoes milling so as to produce lateral recesses (108a-b), a second milling step during which the lower part of each support wall (104a-b) undergoes milling so as to produce a first recess (302a-b), - a deposition step during which glue is deposited along each recess (302a-b, 108a-b), - a bonding step during which the bottom (102) is bonded in the first two recesses (302a-b), and a first vertical flank of each bonded wall (106a-b) is bonded in one of the lateral recesses (108a -b) of one of the walls BE2018 / 5022 Support (104a-b) and a second vertical flank of each glued wall (106a-b) is glued in one of the lateral recesses (108a-b) of the other support wall (104b-a), where the milling depth at during the first milling step, perpendicular to the bonded walls (106a-b) when bonded, is equal to 5 the thickness of the bonded wall (106a-b) which is bonded thereto. 10) The manufacturing method according to claim 9, characterized in that it comprises between the supply step and the removal step, a third milling step during which the upper part of each support wall (104a-b ) undergoes a milling using a milling machine, so as to release extensions (110a10 b).