JPH0533560A - Wooden door - Google Patents

Abstract

PURPOSE:To chiefly prevent a door from vertical warping. CONSTITUTION:A wooden door 10 is constituted of a plurality of pillar-core members 12, 14, 16, 18 and a frame 19 connected thereto. Members preventing warps 20a, 20b made of metallic belts for instance, are stuck to the side faces in parallel with the axial direction of the core member 12, 14 extending in the vertical direction of the frame 19, and further, a superficial member is stuck to the periphery of frame member 19.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden door, and more particularly to a wooden door used for doors such as fittings, furniture, and outer structures.

[0002]

2. Description of the Related Art A conventional wooden door, which is the background of the present invention, has a frame formed by combining a vertical crosspiece and a horizontal crosspiece (crosspiece) with a frame formed in a rectangular frame, for example. There was one that had both sides covered with decorative plywood.

[0003]

However, with this conventional wooden door, due to the nature of the wood, it expands and contracts due to changes in temperature and humidity during long-term use. As a result, the door may be naturally bent, causing problems such as warping, twisting, and contraction. Therefore, in this conventional wooden door, the function as a door may be impaired. Specifically, for example,
In this conventional wooden door, a temperature difference occurs between the inner surface and the outer surface of the door depending on the installation location of the door. That is, when this conventional wooden door is attached to, for example, an entrance, the outer surface side of the door may receive direct sunlight, and a temperature difference occurs between the outer surface and the inner surface of the door. Further, when the conventional wooden door is attached to, for example, a room having a heating / cooling facility, a temperature difference occurs between the indoor surface and the outdoor surface of the door. Therefore, in this conventional wooden door, the door may be warped, twisted, or the like, and the function as the door may be impaired.

Therefore, a main object of the present invention is to provide a wooden door which can prevent mainly warp in the vertical direction.

[0005]

According to the present invention, there is provided a frame body formed by connecting a plurality of columnar core members, and a side end surface of the core member extending in the longitudinal direction and parallel to the axial direction. It is a wooden door including a warpage prevention member and a surface material attached to a frame. In addition, it is more preferable that the warpage preventing member is provided so that its end portion bites into the surface material.

[0006]

The anti-warpage member reinforces the longitudinal core material of the frame body. Therefore, the warp prevention member prevents the wooden door from warping in the vertical direction due to, for example, a temperature difference and a humidity difference. Further, when the end portion of the warp prevention member bites into the surface material, the longitudinal warp of the wooden door is further prevented.

[0007]

According to the present invention, it is possible to obtain a wooden door which can prevent warping mainly in the vertical direction.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0009]

1 is a front view with a part cut away, FIG. 2 is a plan view of the wooden door shown in FIG. 1, and FIG. FIG. 3 is a perspective view in which a part of the wooden door shown in FIG. 2 is cut away.

The wooden door 10 includes, for example, four pillar-shaped core members 12, 14, 16 and 18. Each of the core members 12 and 14 is formed, for example, in a pentagonal column shape with a part thereof chamfered. The core members 12 and 14 are formed to have the same width, length, and height, respectively. on the other hand,
The core members 16 and 18 are each formed in, for example, a quadrangular prism shape. The core members 16 and 18 are formed to have the same width, length and height, respectively. Core materials 16 and 18
Is formed to be lower than the height of the core materials 12 and 14. That is, the axial lengths of the core members 16 and 18 are
It is formed to be shorter than the axial length of the core materials 12 and 14.

These core materials 12, 14, 16 and 18
Are connected to each other to form a rectangular frame body 19. In this case, the core materials 12 and 14 are arranged side by side with a space therebetween, and are connected by the core materials 16 and 18.
The cores 12 and 14 are parallel to their axial directions, and
The upper part and the lower part of the inner side end faces where they face each other,
The core members 16 and 18 are fixed to both axial end faces with an adhesive, for example.

Further, the frame body 19 has core members 12 and 1
4 parallel to the axial direction of the cores 4 and their cores 12 and 1
Warp prevention members 20a and 20b made of, for example, an aluminum alloy are formed on the inner side end surfaces of the four opposing each other. These warp prevention members 20a and 20b are formed in a band shape, for example. The warp prevention members 20a and 20b are formed such that their lengths in the longitudinal direction are substantially the same as the length between the lower end surface of the core material 16 and the upper end surface of 18.

One of the warpage preventing members 20a is fixed to the side end surface of the core material 12 and the side end surface facing the core material 14 with, for example, an adhesive. The other warp prevention member 20b is fixed to the side end surface of the core material 14 and the side end surface facing the core material 12 with, for example, an adhesive. Warp prevention members 20a, 20b
Is formed to have a thickness of 0.5 to 1.5 mm, a width of 22 mm and a length of 2 m, for example. The warp prevention members 20a, 2
The size of 0b is four core materials 12, 14, 16 and 1
The size can be appropriately changed depending on the size of the frame body 19 formed by 8. Further, the warp prevention members 20a and 20b
In addition to the aluminum alloy, may be formed of a metal material such as iron and stainless steel.

Further, for example, four support members 22, 2 are provided between the core members 12 and 14 with a space therebetween in the axial direction.
4, 26 and 28 are formed. These support members 2
2, 24, 26 and 28 are formed, for example, in a quadrangular prism shape, and their axial lengths are formed to be substantially the same as the axial lengths of the core members 16 and 18. These support members 22 to
28 presses the warp preventing members 20a and 20b toward the core members 12 and 14 at both axial end surfaces thereof. In other words, the warp prevention members 20a and 20b are the four support members 22.
It is sandwiched between ~ 28 and the core materials 12 and 14.

Further, a support member 22 is fixed to the lower end surface of the core material 16. The upper end surface of the support member 22 and the lower end surface of the core member 16 are fixed to each other by applying an adhesive, for example, to the upper end surface of the support member 22 and both end surfaces of the support member 22 in the axial direction, and Both end surfaces in the axial direction and the inner surfaces of the anti-warpage members 20a and 20b are fixed to each other.
A support member 28 is fixed to the upper end surface of the core material 18 with an adhesive, for example. By applying, for example, an adhesive to the lower end surface of the support member 28 and both end surfaces in the axial direction of the support member 28, the lower end surface of the support member 28 and the core member 18 are formed.
The upper end surfaces of the support members 28 are fixed to each other, and both end surfaces of the support member 28 in the axial direction are fixed to the inner surfaces of the warp prevention members 20a and 20b.

Further, between the support members 22 and 28,
The supporting members 24 and 26 are fixed to each other at a position where they are substantially divided into three parts, for example, with an adhesive. By applying an adhesive to both axial end surfaces of the support members 24 and 26, both axial end surfaces of the support members 24 and 26 and the inner surfaces of the anti-warpage members 20a and 20b are fixed.

Further, the core members 12 and 14 and the four supporting members 2
2, 24, 26, 28, the core material 1 for those parts.
In order to more firmly fix the warpage preventing members 20a, 20b to the support members 22, 24, 26, 28 and the supporting members 22, 14, the stapler stopper 30 is provided.

Further, a surface material 31 is provided around the frame body 19.
Is formed. This surface material 31 is
An adhesive, for example, is applied and pasted on the portions other than the upper and lower end surfaces of the core materials 12 and 14, the upper end surface of the core material 16 and the lower end surface of the core material 18. As shown in FIG. 5, the surface material 31 includes a highly flexible belt-shaped sheet member 32. The sheet member 32 is formed of a material such as vinyl chloride. A rectangular plywood 34, for example, is formed on the surface of the sheet member 32. This plywood 3
4 is attached by, for example, an adhesive. further,
On the surface of the plywood 34, for example, a plurality of groove portions 36 having a V-shaped cross section are formed extending in the longitudinal direction. Each of these groove portions 36 is formed to a depth that does not damage the sheet member 32. These groove portions 36 are for bending them at the corners of the frame body 19. These groove portions 36 are bent so as to close the groove portions 36.

The surface material 31 is appropriately bent at the corner portions of the core materials 12 and 14, and is further connected and attached at the joint 38. In this case, the two warpage preventing members 20a and 20b have the end portions in the width direction of about 0.5 mm along the axial direction of the core materials 12 and 14, and the surface material 31.
Bite into. Therefore, the surface material 31 is reinforced by the two warpage preventing members 20a and 20b along the longitudinal direction of the core materials 12 and 14.

In the wooden door 10 shown in FIGS. 1 to 3, along the axial direction of the core members 12 and 14, the warp preventing members 20a, 20 are provided on the inner side end faces of the core members 12 and 14 at the opposite end faces.
b is fixed, and their warp prevention members 20a, 20
Since the b end portion bites in the longitudinal direction of the surface material 31, the core material 1
2, 14 and the surface material 31 are reinforced. Therefore, in the wooden door 10, it is possible to mainly prevent the warp in the vertical direction, that is, the vertical direction. Therefore, when the wooden door 10 is used for doors such as fittings, furniture and exteriors, even if the door is installed in a place where there is a temperature difference and a humidity difference, the door body is not warped or twisted. Can be prevented.

FIG. 6 is an illustrative view of a main part showing a modified example of the wooden door shown in FIGS. 1, 2, 3 and 4. In this modified wooden door 10, in particular, the core members 12 and 14 are formed in a quadrangular prism shape as compared with the wooden doors shown in FIGS. 1, 2, 3 and 4.

The wooden door 10 is mainly provided with a warpage preventing member for preventing warpage in the vertical direction and can prevent the warpage. Next, an experimental example for showing the warpage prevention effect will be shown. [Experimental Example] First, as samples, three wooden doors A not reinforced with anti-warpage members and three wooden doors B reinforced with anti-warpage members were prepared. In this case, the wooden door B is shown in FIG.
1 to 4, the wooden door A is the same as the wooden door shown in FIGS. 1 to 4 except that the warpage preventing member is not provided. As the warp prevention member, for example, an aluminum plate having a thickness of 1.5 mm, a width of 23 mm and a length of 1 m was used. Then, as shown in FIG. 7, a bending rigidity test was performed by a central concentrated load method with a span of 85 cm. 5 in this test
The amount of deflection with respect to a load of 0 kg was measured, and their average value was calculated. The measurement results are shown in Tables 1 and 2.
A wood tester manufactured by Instron was used as the tester, and the amount of deflection was read from the chart paper.

[0023]

[Table 1]

[0024]

[Table 2]

As is clear from Table 1 and Table 2 in this bending rigidity test result, the deflection amount of the wooden door reinforced with the aluminum plate as the warpage preventing member is larger than that of the wooden door not reinforced with the aluminum plate. Small compared to the amount of deflection. Therefore, it can be seen that the wooden door 10 according to the present invention has a very excellent anti-warping effect.

In the above-described embodiment, the frame member 19 is provided with the supporting members 22, 24, 26 and 28 as so-called horizontal bars, but in addition to these supporting members 22 to 28, for example, a vertical pillar having a rectangular column shape. May be provided as appropriate. in this case,
The warp of the wooden door can be further suppressed. The warp prevention members 20a and 20b are, for example, a plurality of strip-shaped warpage prevention members fixed to the inner side end surfaces of the core members 12 and 14 at appropriate intervals in the axial direction of the core members 12 and 14. You may do it. Further, the core material and the support member may be formed in a polygonal column shape other than the quadrangular column shape and the pentagonal column shape. However, the shape can be appropriately changed. In addition, in the above-described embodiment, removing the support members 22 to 28 is
It is optional.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of the present invention with a part cut away.

2 is a plan view of the wooden door shown in FIG. 1. FIG.

FIG. 3 is a perspective view in which a part of the wooden door shown in FIGS. 1 and 2 is cut away.

FIG. 4 is an illustrative view showing a cross section of a main part of the wooden door shown in FIGS. 1, 2 and 3.

5 is a perspective view showing a main part of a surface material used for the wooden doors shown in FIGS. 1, 2 and 3. FIG.

FIG. 6 is an illustrative view of a main part showing a modified example of the wooden door shown in FIGS. 1, 2, 3 and 4.

FIG. 7 is an illustrative view showing a method of a bending rigidity test using the wooden door according to the present invention as a sample.

[Explanation of symbols]

10 wooden doors 12, 14, 16, 18 Core material 19 frame 20a, 20b Anti-warping member 22, 24, 26, 28 Support member 31 surface material

Claims (2)

[Claims] 1. A frame body formed by connecting a plurality of columnar core members, a warp prevention member provided on a side end surface of the core member extending in the longitudinal direction parallel to the axial direction, and the frame. A wooden door that includes a surface material that is attached to the body. 2. The wooden door according to claim 1, wherein an end portion of the warpage preventing member bites into the surface material.