ES2291116B1 - SOUL OF DOORS. - Google Patents

Abstract

Door Soul It is of the type formed by an agglomerate board (2) of the thickness of the door and a perimeter slat (3, 3 '') that sticks in all its edges in an operation prior to sanding and subsequent rejection of the faces seen from the door. The slat (3, 3 '') is materialized by sections of an agglomerated board of different layers: an internal one (4) of lower density; two collaterals (5) of greater density forming a sandwich with the first; and at least one exterior (6) of noble wood. The slat (3 '') can also include another inner layer (7) of solid wood of different or equal quality than the outer one (6). In both cases the ribbon (3) or (3 '') is glued to the board (2) with urea-formaldehyde resins.

Description

Door Soul

Object of the invention

The present invention, as expressed by the set forth in this specification, refers to a soul of doors, of the type that are constituted from a chipboard and particle board urea-formaldehyde, of a density of the order of 500 kg / m 3. The board is then coated with a perimeter slat. The thicknesses of the interior doors of passage oscillate between the 35 and 45 mm. The standard width and height of doors measures are 2030 mm high x 625-725-825 mm width.

These door souls are subjected to a flat surface finishing operation, using a machine sander-gauge that leaves a flat surface optimal for repel with noble plates.

Background of the invention

Today the soul of the doors is get sticking a few strips of noble wood from the same class as the faces of the soul will be rejected when forming the door, around the perimeter of the board edges chipboard that has the same thickness as desired for the door.

This technique has several drawbacks. so much because the wood that is used for the slats comes of felling trees and this is scarce more and more since you have to cut down many trees due to the great waste that occurs at make slats for this purpose, as because many of them must be removed as unusable because they are not usable because they are imperfect (being splintered, excessive knots, etc.), apart from that it is necessary to dry them properly, which is not done because I would lose excessive time in drying. In all cases there are risks that such slats take off with the passage of time, breaking or cracking the plating, apart from problems that they can arise from the anchoring of the fittings.

Description of the invention

In general, the soul of doors built according to the invention, it has the special characteristic that the slats that make up the board are slats of chipboard board from 10 to 14 mm of thickness, obtained by parallel cuts thereof, according to the thickness of the door's soul, which are obviously disposed of I sing, as we will see later in relation to the drawings.

This slat board is water repellent and complies UNE standards in moisture resistance and consists of Different layers of the following characteristics:

It has a soul of wood chipboard a density of approximately 600-700 kg / m3; two sandwich layers 2 to 3 mm thick and one density of 900-1000 kg / m 3. It has also provided that this sandwich board with a thickness of 10 to 14 mm out of a single layer and MDF fiber, being perfectly valid for this purpose.

This sandwich or this single layer of uniform density, is preferably repelled by both sides with noble wood, at least the exterior of the same quality as the repelled of the soul of the door, and the interior can be of another type since it is mounted for compensation and elimination of tensions that could be formed at the end of the process. The thickness of these two slat plates will be 0.5 to 4 mm, sticking naturally with these urea-formal tails.
dehyde

The songs already prepared with this structure and cut from a board previously manufactured for this purpose, they have preferably a thickness of 10-14 mm and are glued  to the outline of the door soul board with the tail of urea-formaldehyde, thus obtaining a soul of doors with values both to bending, swelling and starting of screw, which far exceeds the required characteristics according to the established UNE standards.

The finishing of the flat surfaces of the soul of  doors are achieved with a machine sander-gauge that leaves a flat surface optimal to reject with noble plates of equal quality to the which was used in the rejection of the bar of its songs.

To facilitate the understanding of characteristics of the invention and forming an integral part of this Descriptive report, accompanied by a sheet of plans in whose figures, with an illustrative and non-limiting nature represented the following:

Brief description of the drawings

Figure 1.- It is a partial perspective view of a door soul provided with a perimeter panel slat chipboard according to the invention and with only the outer layer of the noble wood ribbon.

Figure 2.- It is a view similar to Figure 1, including the perimeter slat an inner layer also with wood solid of the same or different nature as the outer layer.

Description of the preferred embodiment

Referring to the numbering adopted in the figures and especially to figure 1, we can see how the soul of doors that the invention proposes is generally referenced with the number (1) and built from the chipboard (2) and the perimeter slat (3) which is also chipboard of different layers of different densities and nature, which it is glued with urea-formaldehyde resins to board (2) that was already cut to the consequent measures.

The ribbon (3) is obtained by cutting parallels of a multilayer board formed by a soul (4) of lower density and larger particle size than layers collaterals (5) with which the sandwich is formed. To this board chipboard that will be used to obtain the slats (3), naturally before cutting it to remove said slats (3) it has been attached with urea-formaldehyde tails the outer layer or view (6) noble wood (of the same nature as the one to be used for the rejection of soul faces -1- when building the door).

Figure 2 shows another form of realization of a door soul, referenced in this case with (1 '), in which the perimeter slat (3') includes another layer (7) opposite to the previous one or view (6), also of noble wood although it doesn't need to be the same as her, since it is enough that it be solid and is planned to counteract tensions that could form.

Once the exposed surfaces of the soul are sanded of doors (1) or (1 '), you can proceed to the rejection of both faces as usual.

Souls of doors (1) or (1 ') are thus obtained with the slats (3) or (3 ') that make up their songs, much more robust than usual and that allow the hardware of the door for its hinged and closed, fit perfectly secured, remarkably better than doors with wooden edges solid as usual.

When the slats (3) and (3 ') are formed with wood particles the saving in raw material is considerable and In addition, cutting down trees is significantly reduced.

Claims (3)

1. Soul of doors, of the type formed by an agglomerate board (2) with the thickness of the door and a perimeter slat (3, 3 ') glued on the edges of the same, according to a phase prior to the rejection of noble wood on the faces of the door, characterized in that the perimeter slat (3) is constituted by an MDF wood chipboard core (4) of a first density of the order of 600-700 kg / m3, a coating or reinforcement layer (5) on both sides forming a sandwich, agglomerate of a density greater than the first, of the order of 900-1000 kg / m 3, and an exterior veneer of noble wood (6 ) of a thickness between 0.5-4 mm. 2. Door core, according to claim 1, characterized in that the slat (3 ') also includes a second layer (7) of wood veneer arranged on the inside and between 0.5-4 mm thick. 3. Door core, according to claim 1, characterized in that the perimeter slats (3, 3 ') are glued with urea-formaldehyde resins and obtained between cuts of an agglomerated board of the different layers (4, 5) and wood veneers noble (6, 7) cited, previously built.