Casket manufacturing procedure (Machine-translation by Google Translate, not legally binding)

DESCRIPTION

Coffin manufacturing procedure.

FIELD OF THE INVENTION

The present invention relates to a method of manufacturing coffins, composed of a glass and a wooden lid, preferably with an external surface provided with one or 5 several curves.

BACKGROUND OF THE INVENTION

By the utility model 1060691 a coffin is known whose vessel and lid are constituted from a laminated board, composed of a plurality of sheets of reduced thickness, of the order of one millimeter, joined together by means of an adhesive. This board is formed, by pressing, with the undulations or irregularities that will decide the external design of the coffin.

With this constitution, the undulations or irregularities of the external surface are reproduced on the inner surface of the wall of the vessel and lid, which does not allow obtaining a suitable internal finish. fifteen

To avoid this problem it is known to manufacture the wall of the glass and lid from a composite piece based on small wooden boards, joined by gluing, which are curved into presses and cut into pieces of height equal to that of the coffin obtain. These pieces are subjected to an external molding process by milling to obtain the desired moldings. On the open bases, boards that fix the bottom of the glass and lid are attached and fixed. Finally, the wall is cut to separate the glass from the lid.

With the procedure described, the use of a piece of solid wood or set of sheets joined by adhesive is required, with sufficient thickness to allow, through the milling of the wood, the roughing of the piece to give it the desired shape. Consequence 25 of the above is:

- High waste of raw material.

- Greater weight of the coffin since the thickness of the coffin is not uniform (more thickness in the places not rough).

- High processing time. 30

A further drawback of the process described above is that the vessel and the lid of the same box are inseparable throughout the process, which implies that in all subsequent stages (anchored, tinted, finished, etc.) each vessel and lid must be perfectly identified, since they are not interchangeable with other glasses and lids, which makes mass production difficult. Due to this, in the case where a defect is detected in any of the previous pieces (glass or lid), it will be necessary to discard both, since no other piece that adapts can be exchanged or customized.

Finally, it must be taken into account that during the molding process splinters can be produced in the sheets, which will require a great subsequent sanding effort, to turn it into a uniform and polished surface. 40

DESCRIPTION OF THE INVENTION

The present invention has as its object a method of manufacturing coffins that allows reducing the loss of material, to achieve the desired external curves, at the same time as

the weight of the whole of the box is reduced and the time of processing, with respect to the traditional procedures.

For the manufacture of coffins with the process of the invention, three wood veneers of different thickness and nature are started: a first solid wood veneer from which the exposed face will be constituted, and whose nature will depend on the design or finish that it is desired, being able to be constituted for example of poplar, beech, oak, etc .; a second flexible board plate, of much greater thickness, is intended to form an intermediate reinforcement layer; and a third veneer, also of solid wood, for example of wood known as “smokes” (fromager), from tropical trees, and which will define the internal surface of the box or coffin. 10

The three starting plates mentioned will be of commercial dimensions and will be cut to obtain from each of them pieces sized to form each two of these pieces the wall of the vessel and the wall of the lid.

Of the three plates mentioned above, the first one, the one that will define the external surface seen, will be the one with the lowest thickness, while the second sheet will be considerably thicker to serve as a resistant means of the wall.

Once the three sheets have been cut as described, the molding is done by milling one of the surfaces of the pieces obtained by cutting the second sheet, which is the thickest, to obtain the design of the lateral surface external of the vessel and lid, with the undulations that peripherally cover the entire lateral surface of the vessel and 20 lid.

Next, the corresponding pieces obtained from the second sheet are glued on the molded surface of the pieces obtained from the second sheet, the corresponding pieces obtained from the first sheet, and the corresponding pieces obtained from the third sheet are glued on the flat opposite surface of the pieces obtained from the second sheet. . A sandwich is thus obtained which is composed of an intermediate layer, formed by the pieces obtained from the second sheet, an outer layer, formed by the pieces obtained by the cutting of the first sheet, and an inner layer that will be formed for the pieces obtained by cutting the third sheet.

Once the sandwich mentioned above is formed, it is transverse curved by pressing it and then the transverse edges of each 30 set of three curved plates are made for the assembly of the vessel and the lid, by assembling the two pieces that would make up said glass and lid, together with the panel that will form the bottom of them.

With the procedure described, the lid and vessel constitute completely independent pieces, which are formed separately with the pieces obtained by cutting the three sheets of the game.

Of the three plates that will make up the walls of the vessel and cover the first sheet, which will make up the outer cover of the wall can be purchased to measure with the required dimensions, while the other two sheets are acquired with commercial dimensions, in the form of a panel or board, which are cut lengthwise to obtain the pieces that will make up the glass and lid walls.

BRIEF DESCRIPTION OF THE DRAWINGS

In the attached drawings the different phases of the procedure are shown according to an example of non-limiting embodiment, being:

Figure 1 a representation of the three plates from which the vessel wall and lid will be formed.

Figure 2 shows a longitudinal section of one of the pieces obtained by cutting the second sheet, for the formation of the vessel and lid walls, once one of its surfaces has been molded. 5

Figure 3 is a longitudinal section of the sandwich formed by the three pieces that make up the three layers of the vessel wall and lid.

Figure 4 a partial horizontal section of the wall of the vessel or lid, obtained by bending the assembly of Figure 3.

Figure 5 a vertical section of the vessel wall. 10

DETAILED DESCRIPTION OF AN EMBODIMENT

In accordance with the method of the invention, the walls of the vessel and lid of the coffin are formed from three wood veneers of different thickness and nature, a first solid wood veneer (1) that will constitute the exposed face, a second veneer of flexible board (2), which will form an intermediate reinforcement layer, and a third sheet of solid wood 15 (3), which will form the inner face.

The plates (2 and 3) can be of commercial dimensions and subdivided by means of longitudinal cutting lines (4) into pieces of dimensions corresponding to the height of the wall of the vessel or lid of the box. The first veneer (1) will be of a wood depending on the design or finish that is desired, for example based on poplar, beech, oak, etc., and can have an approximate thickness of 0.35 millimeters. This first sheet (1) can be purchased to measure with the required dimensions, as shown in Figure 1, or in panels that would be cut longitudinally in the same way as the second and third sheets (2 and 3).

The second sheet (2) will be constituted based on a flexible laminated board, for example with a thickness of 15 millimeters. Finally, the third plate, which will constitute the internal face, 25 may be made of "smokes" (corresponding to the French name fromager), from tropical trees and having an approximate thickness of 2.2 thousand meters.

Once the second and third plates (2 and 3) have been cut to obtain pieces (6 and 7) of dimensions corresponding to those of the wall of the box or lid, the molding is carried out, 30 by milling, Figure 2, of one of the surfaces of the pieces (6). With this operation sections (8) of smaller thickness will be obtained than together with the intermediate sections 9 and adjacent ones 10 of greater thickness, will determine in the Y axis the undulations that will run along the entire lateral surface of the vessel and lid.

Then, as shown in Figure 3, the sheet 1 is glued on the molded surface of the piece (6), while one of the pieces (7) is fixed on the opposite flat surface of the piece (6). ).

This gluing operation will be carried out from the inner face to the outer face or exposed face. Once the three pieces have been glued, they are placed in a membrane press where, with the help of a mold with the desired shape and applying vacuum at the appropriate temperature, the pieces are curved to obtain the configuration shown in Figure 4, in which the curves (11) will correspond to the shape of the coffin and the surface obtained from the piece (6), Figure 2, it will constitute the molding (12), Figure 5. The same process will be followed for both the walls of the vessel and the lid.

The total wall of the vessel will be composed of two sides and similarly the lid wall. The edges of these sides are cut, for example by a double miter machine, to proceed to the assembly of the two sides that will form the wall of the vessel or lid.

Once the vessel and the lid are assembled, the sides are assembled with the bottom (13) and the reinforcements are placed to give consistency to the assembly. In the same way we proceed to the lid. 5

Both the bottom (13) of the glass and the lid will be obtained through the pantograph cut.