JPH0913818A - Wooden door - Google Patents

Abstract

PURPOSE: To provide a wooden door lightweight and prevented from warping. CONSTITUTION: In a wooden door 5 formed of wooden stile core material 6 and wooden surface material 7 provided on both sides of the core material 6, the stile core material 6 has a built-in perforated metal plate 1 with numerous through holes, along the longitudinal direction. It is desirable that the perforated metal plate 1 is built in the stile core material long in the lengthwise direction of the wooden door 5. The stile core material 6 is formed of divided members 611, 612 divided plurally along the longitudinal direction, and the perforated metal plate 1 held between a plurarity of divided members, and these are integrally fixed. It is desirable that the perforated metal plate 1 has protruding parts for biting into the stile core material 6, at least on one side and that the thickness of the perforated metal plate 1 is 0.5-1.0mm.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden door made of a wooden material.

[0002]

2. Description of the Related Art As shown in FIGS. 11 to 13, conventionally, as a wooden door 9, there is usually a wooden frame core material 91 having a surface material 92 attached to the front and back surfaces thereof. . The frame core material 91 has a grid shape as shown in FIG. The frame core material 91 is composed of a vertical bar 911 that is long in the vertical direction of the door and a horizontal bar 912 that is combined in a direction perpendicular to the vertical bar 911.
And In FIG. 11, reference numeral 99 is a knob.

[0003]

[Problems to be Solved] However, the above conventional door has the following problems. That is, during high humidity and high temperature, the dryness and humidity of the atmosphere change drastically. For this reason,
The wooden frame core material 91 may be warped. This warpage occurs particularly in the longitudinal direction, which is the longitudinal direction of the door. Further, in the cold season, in the case of an opening / closing door attached to the entrance of the room, when the room is heated, the temperature inside the room rises, while the temperature outside the room remains low. ， There is a difference between dry and wet. Therefore, one side of the frame core material 91 on the indoor side may be dried and shrunk, and may warp in the indoor side in a concave shape.

Therefore, in order to prevent the warp of the frame core material, conventionally, it has been proposed to attach a belt-shaped warpage preventing member made of metal to the surface of the frame core material (Japanese Patent Laid-Open No. 5-3356).
No. 0). However, since the warp prevention member is made of metal, the door becomes heavy. In addition, since the warpage preventing member is attached to the frame core material by an adhesive fixing method in which it is fixed and fixed with an adhesive, a wide adhesive area is required. Therefore, if a large hole is made in the warpage prevention member to reduce the weight, the adhesion of the warpage prevention member to the frame core material becomes weak. When the warp stress of the frame core material is large, the warpage preventing member may be removed from the frame core material.

In view of such conventional problems, the present invention aims to provide a lightweight wooden door which does not warp.

[0006]

According to the present invention, there is provided a wood-based door comprising a wood-based core material and wood-based surface materials provided on both sides of the door, wherein the frame and core material are arranged along the longitudinal direction thereof. In addition, a wooden door is characterized by having a metal plate with a hole having a large number of through holes.

The frame core material has a perforated metal plate built therein along the longitudinal direction thereof. Perforated metal plate,
In particular, it is preferable that the wooden door is built in a frame core material that is long in the vertical direction. As a result, the perforated metal plate is built in parallel to the direction in which the wooden door tends to warp, and the wooden door can be effectively prevented from warping.

As a method of incorporating the perforated metal plate into the frame core material, for example, a divided material obtained by dividing the frame core material into a plurality of pieces along the longitudinal direction thereof is prepared, and the divided material is provided between the plurality of divided materials. There is a method of sandwiching metal plates with holes and fixing them together.
In addition, there is a method in which a cutout groove is provided in the frame core material along the longitudinal direction of the frame core material, and a perforated metal plate is inserted into the cutout groove.

The perforated metal plate has a large number of through holes. The through holes are preferably provided in the entire perforated metal plate. This makes it possible to further reduce the weight of the perforated metal plate as a whole. The shape of the through hole is, for example, a round hole, or a polygonal hole such as a triangular hole or a square hole, but is not limited thereto. The perforated metal plate is, for example, punching metal obtained by punching a metal plate.
Further, examples of the material of the perforated metal plate include a steel plate, a stainless steel plate, and an aluminum plate.

Further, it is preferable that the perforated metal plate has, on at least one surface thereof, a protrusion for making it penetrate into the frame core material. As a result, the perforated metal plate is firmly fixed to the frame core material. The protrusion can be formed, for example, by cutting and raising a perforated metal plate (see the embodiment). It is preferable that the projections are provided on the perforated metal plate so as to alternately project on both front and back surfaces of the perforated metal plate.

As a result, the protrusions bite into the frame core material on both sides of the perforated metal plate, and the perforated metal plate can be more reliably incorporated in the frame core material. Therefore, the frame core material can always maintain the integrated structure without disassembling the split material and the perforated metal plate even if stress is applied from any direction. Further, it is preferable that the height of the protrusion is 2 to 5 mm. If it is less than 2 mm, the amount of bite into the frame core material is small, and if it exceeds 5 mm, it may be difficult to bite it.

The thickness of the perforated metal plate is 0.5 to 1.0 mm
It is preferred that If the thickness is less than 0.5 mm, the rigidity of the metal plate may decrease, and the strength of the frame core material against warp stress may decrease. On the other hand, when it exceeds 1.0 mm, the wooden door becomes heavy. The surface material is preferably a highly decorative wood material.

[0013]

In the wooden door of the present invention, the perforated metal plate is built inside the frame core material. The perforated metal plate has excellent strength against warping stress of the frame core material. Therefore, it is possible to prevent the wooden door from warping not only on one side of the frame core material but also on both sides of the frame core material. Therefore, the wood-based door of the present invention does not warp even in an environment with a large difference in temperature and humidity.

A through hole is provided in the perforated metal plate. Therefore, the weight of the perforated metal plate can be reduced.

According to the present invention, it is possible to provide a light wooden door which does not warp.

[0016]

【Example】

Example 1 A wooden door according to an example of the present invention will be described with reference to FIGS. 1 to 6. As shown in FIG. 1, the wooden door 5 of this example comprises a wooden frame core material 6 and a wooden surface material 7 provided on both sides thereof. As shown in FIGS. 1 and 2, the frame core member 6 has a perforated metal plate 1 having a large number of through holes 10 built therein, along the longitudinal direction thereof.

The perforated metal plate 1 has protrusions 11 on both sides thereof so that the frame core member 6 can be bitten. Projection 1
As shown in FIGS. 2 and 3, the reference numerals 1 alternately project on both sides of the perforated metal plate 1. As shown in FIG. 4, the protrusion 11 is a triangular protrusion cut and raised by a punch.
That is, the protrusion 11 is formed by making a V-shaped cut in the perforated metal plate 1 and then cutting and raising it. Therefore, a triangular cut-and-raised hole 110 is formed in the portion where the protrusion 11 is cut and raised.

As shown in FIG. 2, the through holes 10 are formed in a row over the entire length of the perforated metal plate 1 in the longitudinal direction. The through hole 10 is formed by punching out a metal plate made of stainless steel with a punch that can be easily processed.

That is, the perforated metal plate 1 is a punching metal in which the through hole 10 and the protrusion 11 are formed by a punch that can be easily processed. The perforated metal plate 1 has a thickness of 0.6 mm. Further, the perforated metal plate 1 has a width of 24 mm and a length of 210
cm, which is the same size as the vertical wood of the frame core material described later. The through holes 10 are round holes having a diameter of 1.2 cm and are provided at intervals of 4 cm.

The frame core material 6 has a lattice shape as shown in FIG. And the frame core material 6 is a vertical tree 61 long in the longitudinal direction of the door.
And a horizontal bar 6 combined in a direction perpendicular to the vertical bar 61
It consists of two. As shown in FIGS. 1, 5, and 6, the vertical bar 61 of the frame core member 6 is sandwiched between the split members 611 and 612, which are split along the longitudinal direction thereof, and the split members 611 and 612. The perforated metal plate 1 is formed.

That is, the vertical tree 61 of the frame core member 6 is as shown in FIGS.
As shown in FIG. 7, the front and back surfaces of the perforated metal plate 1 are coated with an adhesive, and then the dividing members 611 and 612 are pressed against the front and back surfaces to integrally fix them. Frame core material 6
Both the front and back sides of the are covered with a surface material 7 made of wood board,
Make up the door. As shown in FIG. 7, a thin plate 69 is attached to the entire surface including the vertical tree 61 portion on the outer surface side of the horizontal tree 62, so that the opening of the vertical tree 61 can be covered and the appearance is improved.

Next, the function and effect of this example will be described.
In the wooden door of this example, as shown in FIG. 1, the perforated metal plate 1 is built in the frame core material 6. Perforated metal plate 1
Has excellent strength against warping stress of the frame core material 6. Therefore, it is possible to prevent the wooden door from warping not only on one side of the frame core material 6 but also on both sides of the frame core material 6.

Further, the perforated metal plate 1 is built in a vertical tree 61 which is long in the vertical direction of the wooden door 5 which is easily warped. Therefore, the warp of the wooden door 5 can be effectively prevented. Therefore, the wood-based door of this example does not warp even in an environment with a large difference in temperature and humidity.

A through hole 10 is formed in the perforated metal plate 1. Therefore, the weight of the perforated metal plate 1 can be reduced. Further, since the through hole 10 is provided, the rigidity of the frame core material 6 is further improved by using the adhesive together. In addition, the perforated metal plate 1 has projections 11 on both sides thereof for making it penetrate into the frame core material 6. for that reason,
The perforated metal plate 1 is firmly fixed to the partition members 611 and 612. Therefore, the frame core member 6 can always maintain the integrated structure without disassembling the divided member and the perforated metal plate even if stress is applied from any direction.

Embodiment 2 In the wood-based door of this embodiment, as shown in FIGS. 8 and 9, the through hole 101 of the perforated metal plate 1 has a rhombic shape, and the through holes 102 formed at both ends in the longitudinal direction thereof. Is a triangular hole. Also,
In FIG. 8, another triangular through hole 103 is formed between the rhombic through holes 101. The through hole 103 is made smaller than the through hole 101 to maintain rigidity and reduce weight. That is, the through hole 103 has a side of 7 mm.
It is a triangular hole. Further, the protrusion 112 formed by cutting and raising is a triangular piece having a side of 3 mm. Others
This is similar to the first embodiment.

In this embodiment, the perforated metal plate 1 is provided with both rhombic through holes 101 and triangular through holes 102 and 103. Therefore, the wooden door can be made lighter and the rigidity can be maintained. In addition, also in this example, the first embodiment
The same effect as described above can be obtained.

Embodiment 3 As shown in FIG. 10, the wood-based door of this embodiment has a groove 610 formed in the longitudinal wood 61 of the frame core material along the longitudinal direction thereof.
Is provided, and the perforated metal plate 1 is inserted into the cut groove so that the perforated metal plate 1 is built in the frame core material. The cut groove 610 has substantially the same size as the perforated metal plate 1. Then, by pushing the perforated metal plate 1 coated with the adhesive into the cut groove 610, the perforated metal plate 1 is fixed integrally with the vertical tree 61. Others
This is similar to the first embodiment. In this embodiment, the same effect as in the first embodiment can be obtained.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a wooden door according to a first embodiment.

FIG. 2 is a perspective view of a perforated metal plate according to the first embodiment.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a perspective view of a perforated metal plate taken along line BB in FIG.

FIG. 5 is a plan view showing the method of manufacturing the frame core material according to the first embodiment.

FIG. 6 is a plan cross-sectional view of the frame core material according to the first embodiment.

FIG. 7 is a perspective view of a main part of the frame core member in which a thin plate is provided on the outer surface side of the crossbar in the first embodiment.

FIG. 8 is a perspective view of a perforated metal plate of Example 2.

9 is a sectional view taken along the line CC of FIG.

FIG. 10 is a developed cross-sectional view of a frame core material according to a third embodiment.

FIG. 11 is an explanatory view of a conventional wooden door.

FIG. 12 is a development view of a conventional wooden door.

FIG. 13 is a perspective view of a frame core material of a conventional example.

[Explanation of symbols]

 1. . . Perforated metal plate, 10, 101, 102, 103. . . Through hole, 11, 112. . . Protrusions, 5. . . Wooden door, 6. . . Frame core material, 61. . . Vertical tree, 611, 612. . . Dividing material, 62. . . Yokoki, 7. . . ,,, surface material,

Claims (6)

[Claims] 1. A wood-based door comprising a wood-based core material and wood-based surface materials provided on both sides of the wood-based door material. A wooden door with a built-in perforated metal plate with holes. 2. The metal plate according to claim 1, wherein the perforated metal plate is
A wooden door characterized by being built in a vertically long wooden frame core material. 3. The split core material according to claim 1, wherein the frame core material is divided into a plurality of pieces along the longitudinal direction thereof.
A wooden door made of the above-mentioned perforated metal plate sandwiched between a plurality of split members, which are integrally fixed. 4. The method according to claim 1, wherein
A wood-based door characterized in that the perforated metal plate has a projection for allowing it to bite into the frame core material on at least one surface thereof. 5. The method according to claim 1, wherein:
A wood-based door characterized in that the perforated metal plate is a punching metal. 6. The method according to any one of claims 1 to 5,
A wooden door characterized in that the perforated metal plate has a thickness of 0.5 to 1.0 mm.