WO2008012784A1

WO2008012784A1 - Sandwiched-wooden door and its manufacturing process

Info

Publication number: WO2008012784A1
Application number: PCT/ID2007/000003
Authority: WO
Inventors: Agus Angkriwan
Original assignee: Agus Angkriwan
Priority date: 2006-07-24
Filing date: 2007-07-24
Publication date: 2008-01-31

Abstract

Wooden door panel (7) subject to this invention refers to a sound, stable, cheap, and beautiful one by applying light- and processed wooden material. It is relatively cheap due to its light wooden material. It is sound due to its construction in such a way to avoid fracture, or broken in its transportation. It is stable for not using any non- processed wooden material. Its veneer finishing shall allow aesthetic values. Aspects of this invention rely on its wooden door panel with the outer part (2, 4, 5) sandwiching the core, and without using solid wood material frames.

Description

SANDWICHED-WOODEN DOOR AND ITS MANUFACTURING PROCESS

Technical Field of The Invention

This invention is related to a sandwiched-wooden door panel constructed by several layers of wood to sandwich a core. More particularly, it is related to a sandwiched-wooden door panel applying some natural material with its veneer as its outermost part, in which all of them sandwich the core, and without an intact- wooden- frame material.

Background of The Invention

There are many wooden doors applied. However, due to the more difficult and expensive price of wood for its manufacturing purpose, it is therefore produced a cheap, and easily obtainable soft-wooden door material. This processed-door is called as engineering door in which has already widely known. It refers to a product having component of some type of woods manufactured through laminated process. These types of woods usually be chosen by considering their appearance, quality, and prices. Several types of wood have been mostly used for door manufacturing.

Application of laminated technique, including attachment, and pressure, shall provide a long-lasting, preserved, environmentally friendly, and cheap plywood products.

However, some door products are less optimal, and also still mostly apply refused wood. To solve the said problem, this invention shall provide a new wooden door under a new manufacturing technique with extraordinary satisfying results.

Brief Description of The Invention

Several efforts have been conducted to solve engineering wooden door problems to obtain a sound, stable, cheap, and fancy one by applying light, and processed wooden material.

Thus, it is become the purpose of this invention to produce a sound and relatively cheap engineering wooden door having appropriate grain and/or external wood as intended. An aspect of this invention is to provide laminated processed wooden door applying several types of wood with veneer finishing in its outermost surface. A further aspect of this invention is to provide a wooden, door with its' oipcSiM" part sandwiching the core with lamination.

Another aspect is the non applying intact component to shape a door.

Either twin- or different-surfaces may also be applicable with this invention.

Brief Description of Figures

This invention shall further attach figures solely as illustrations, and not to make any restriction, such as among others:

Figure 1 refers to the frontward view of a manufactured wooden door; Figure 2a refers to the frontward view of a wooden door panel core subject to this invention;

Figure 2b refers to the upper view of figure 2a;

Figure 3a refers to the frontward view of threshold, and pole installed in core part of wooden door panel subject to this invention; Figure 3b refers to the upper view of figure 3a;

Figure 4a refers to the frontward view of cover list installed on the core of wooden door panel subject to this invention;

Figure 4b refers to the upper view of figure 4a;

Figure 5a refers to the frontward view of printed panel installed on the core subj ect to this invention;

Figure 5b refers to the upper view of figure 5 a;

Figure 6a refers to the frontward view of manufactured door;

Figure 6b refers to the upper view of figure 6a; and

Figure 7 refers to the partly cross-sectional view of A-A cross-line of Figure 6.

Detail Description of The Invention

This invention shall be defined in detail by looking at figures attached herein. As an introduction, any expression of invention by looking at the figures provided, once more, shall only to make clearer the illustration provided, and not to restrict the invention itself.

As observed in Figure 1, a wooden door panel (7) shall generally comprise of upper- (21), middle- (24), and lower-thresholds (25), inner- (2) outside-poles (23), printed panel (4), and list (6).

This description shall be defined further concerning with its door panel (7) in details as described in the aforesaid Figure 1 subject to this inventioa

Figures 2a, and 2b refer to frontward-, and upper view of core (1) of wooden door panel (7) subject to this inventioa This core (1) comprised of several layers of wooden boards (11) alternately arranged either in transverse and lengthwise, oryerticaL and horizontal direction. Such wooden board layers are preferable comprised of 3 layers, where the middle layers are transverse or horizontally arranged, and the frontward and backward layers, both sandwiching the middle layers, are lengthwise or vertically arranged. The three of them attached with adhesive, and pressed to allow the establishment of a sandwiched core (1). The number of layers may be easily changed, while the method of layering shall be conducted by an expert in this technique.

Further, Figures 3a and 3b shall be the frontward and upper view of the core (1) coated with frame layers (2) comprising of upper- (21), middle- (24), lower-thresholds (25), inner-(22), and outer-poles (23). Middle threshold (24) and/or inner pole (22) may be eliminated or even multiplied, in which significantly depends on the shape, and design intended.

Next, as may be seen in Figures 4a, and 4b, there is covering list (3) placed by surrounding this door panel (7). Covering list (3) may be further comprised of lengthwise or vertical (31) lists, and transverse or horizontal lists (32).

Back to Figures 3 a and 3b, frames (2) surrounding, namely upper-(21), lower- thresholds (25), inner- (22), and outer-poles (23), are installed a little bit passing through the border line of the core (1), so as establishing a slot to be filled by protrusion (27) of the circumference core (26). Next, in Figures 5 a, and 5b, it is seen part of the core (1) furnished with part of panel (4) under the intended form and size. Panel (4) may also be furnished with lists surrounding the said panel (4).

Figure 6 displays a finished product of wooden door panel applying this invention performed without any intact component to form a door. Detail parts of this invention door panel (7) layers may be clearly seen in Figure

7, which refers to A-A section view in Figure 6. Piece figures are illustrated horizontally, not vertically position. The figures show the core (1) comprising of several wooden board layers (1) preferable having the same thickness, and of three layers. At both surfaces of the core (1) are attached frames (2). Each end of frames (2), and core (1) are not the same, there are slots to be filled with protrusion (27) of the circumference core (26). At the external circumference of the said panel (7) are still placed covering lists surrounding the circumference external surface of this door panel (7). In the middle of the panel (7) there is a panel (4) in which has already shaped as intended. For aesthetics, and strength purposes, a circumferertce list (6) shall be provided between the inner edge of frames (2) and panel (4). In addition, as the outermost layer of this door panel (7), to cover all slots, joint lines, and to prevent either broken or joint fractures, an ornamental piece of veneer (5) is attached"~as^* intended.

Some of favorable, cheap, and preferable light wooden raw materials to be. applied in this door panel (7) are among others: veneer, randu (silk-cotton tree), meranti (timber tree), and its equivalent. Therefore, this door panel (7) shall not only cheap, but also sound to hold any shake during their transportation and/or installation.

Furthermore, this invention shall also cover manufacturing process, namely: a). Arranging some wooden boards, preferable having similar thickness, horizontally or vertically against the door when it is in standing position; b). Applying adhesive at each of the surfaces of the said wooden boards; c). Attaching the said wooden boards, and make them as middle layers; d). Arranging some wooden boards (11) lengthwise or horizontal against the standing door position at both side of the said middle layer surfaces to make them as forward, and backward layers; e). Attaching the said forward and backwards layers to make three-layers core

(1) with opposite direction of each layers; f). Placing frames (2) surrounding of, and a little bit exceeding both surface sides of the core (1) to form wooden door panel frames in any shape as intended. If necessary, the said frames (2) may be composed of upper-, middle-, and lower- thresholds (21, 24, and 25), outer- and inner-poles (24, and 22); g). Placing the circumference core (26) with its protrusion (27) surrounding, and entering the slots formed by frames (2), and core (1); h). Placing the covering list (3) surrounding the outer surface of circumference core (1); i). Placing panel (4) on both surface of the non-coverable core by other components between frames (2), or parts (21 up to 25) of frames (2); j). Placing list (6) surrounding the inner surface of frames (2) or parts (21 up to 25) of frames (2); and k). Coating all available surfaces on both sides, except the list's (6) surface, with veneer (5).

Attachment, placement, and installation may be conducted in several ways, such as among others by applying adhesive, other installation tools, e.g. nails, bolts, nuts, etc, or it may also be performed with heat attachment.

Thus, this invention has already described in details by using figures, solely for the purpose of illustration and not to make any restriction to allow any modifications, and variations by those experts in this field. However, the following claims shall be filled to protect this invention.

Claims

Claims:

1. A wooden door panel (7) comprises of

Frames (2); Covering list (3)

Panel (4); and List (6) characterized by: a core within frames (2) as a placement place for frames (2) and panel (4).

2. A wooden door panel (7) shall subject to Claim 1, where a circumference core (26) with protrusion (27) shall exist between frames (2) and cover lists (3)

3. A wooden door panel (7) shall subject to Claim 1, where core (1) refers to wooden board arrangement (11) composed in alternately direction.

4. A wooden door panel (7) shall subject to Claims 1, and 3, where such wooden board arrangement (11) shall be odd in its layers number.

5. A wooden door panel (7) shall subject to Claim 1, where all surfaces of door panel (7) furnished by veneer coaling (5).

6. Wooden door panel (1) manufacturing process comprises the following steps: a). Arranging some wooden boards, preferable having similar thickness, in transverse direction; b). Applying adhesive at each of the surfaces of the said wooden boards; c). Attaching the said wooden boards, and make them as middle layers; d). Arranging some wooden boards (11) lengthwise at both sides of the middle surface layers to allow them as frontward and backward layers; e). Attaching the said forward and backwards layers to the middle layers to allow core (1) establishment; f). Placing frames (2) surrounding of and a little bit exceeding both surface sides of the core (1) to form wooden door panel frames in any shape as intended. g). Placing the covering list surrounding outer surface of the circumference core

(26); h). Placing panel (4) at both surfaces of core (1); i). Placing list (6) surrounding the inner surface of frames (2); and j). Coating all surfaces available at both sides, except the list's surface (6),-witIv veneer (5).

7. Wooden door panel (1) manufacturing process subject to Claim 6, shall refer the following steps, namely the placement of frames (2) and cover lists (3), while between the said steps it is arranged the placement of rounded core (26) with its protrusion (27) surrounding and entering into slots constructed by frames (2), and core (1).