JPH09317339A - Door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door which is easily produced and which is excellent in the sound-insulation and heat-insulation properties prevents the deformation like warping or torsion, by arranging a porous core material in the inside of a stile member and providing a wooden panel integrally forming a recessed decoration part at the front and rear faces thereof. SOLUTION: Porous core materials 15 (150, 151, 152) made of an insulation board are arranged at the inside of a stile member 13 assembled to form a frame and panels 2 are attached to these front face 11 and the rear face 12. The panel 2 is constituted of wooden boards made of hardborads in which recessed decoration parts 20 are integrally formed. The porous core material 15 is provided with a frame-formed recess 17 at the part facing the decoration part 20. A hollow part 18 is formed between the inside wall of the frame-formed recess 17 and the decoration part 20. Three decoration parts 20 are provided on the panel 2 and the part surrounded by the decoration parts 20 is used as the end plate 22 of the door 1 and the part at the outer side of the decoration part 20 or surrounded by other decoration parts 20 adjacent to the decoration part 20 is used as the stile or the rail of the door 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flash type door having front and back surfaces of a frame and a porous core material provided with surface plates.

[0002]

2. Description of the Related Art Conventionally, doors for interior use have been reduced in weight.
Flush doors are commonly used. Figures 6 and 7
As shown in FIG. 5, the flash door 9 is composed of a frame portion 91 and an end plate portion 93 arranged inside the frame portion 91. The end plate portion 93 has a front plate 935, a back plate 936, and a core member 90 interposed therebetween. The core material 90 has substantially the same area as the front plate 935 and the back plate 936. Reference numeral 98 is a base material, 94 is a connecting piece, and 92 is a frame portion. A honeycomb core is used as the core material 90. As shown in FIG. 8, the honeycomb core is made of cardboard in the shape of a honeycomb.

In the flush door 9, the core material 90 is firmly adhered to the entire surface between the front plate 935 and the back plate 936 in order to enhance the structural strength, and the three members are integrated. . Further, the core material 90 has a front plate 935 in the direction of the cavity in the honeycomb core (arrow 900 in FIG. 8).
And is arranged so as to be orthogonal to the direction of the back plate 936. That is, the entire skeleton of the honeycomb core is orthogonal to the front plate 935 and the back plate 936. As a result, the flash door 9 has excellent rigidity in the end plate portion 93.

[0004]

However, in the flush door 9, the front plate 93 is provided by the core member 90.
5 and the back plate 936 are firmly fixed in relative positions. For this reason, when the front plate 935 and the back plate 936 expand and contract due to moisture or the like during long-term use,
The entire flash door 9 may be warped or deformed such as twisted. In particular, when the front plate 935 and the back plate 936 are fiber plates made of wood, the entire flash door 9 is likely to be deformed. Further, in the longitudinal direction of the flush door 9, the amount of dimensional change is larger than in the width direction, and the deformation due to warping, twisting or the like becomes greater.

In view of the above problems, the present invention aims to provide a door which is easy to manufacture, has excellent sound insulation and heat insulating properties, and has little deformation such as warp and twist.

[0006]

According to a first aspect of the present invention, there is provided a door comprising a frame member, a porous core member disposed inside the frame member, and surface plates provided on the front and back side surfaces of the frame member. The surface plate is a wooden plate integrally formed with a concave decorative frame portion.

As the porous core material, a fiber board formed by molding wood fibers (wood pulp, etc.) can be used.
Examples of such fiber boards include insulation boards and MDF (medium density fiber boards). Further, as the fiber plate, for example, one having a density of 0.2 to 0.5 g / cm ³ can be used.

Next, the operation of the present invention will be described below. In the door surface plate according to the present invention, the decorative frame portion is integrally formed by press molding. Therefore, the surface plate is easy to manufacture because it is not necessary to separately combine a plurality of plates to form the frame portion, the end plate portion, and the like. Also, since the surface plate is an integrally molded product,
The door can be assembled by adhering the above surface plates at one time. Therefore, the door is easy to manufacture.

Further, since the porous core material has a large number of pores inside, it is excellent in sound insulation and heat insulation. Therefore, a door having such excellent characteristics can be obtained. Further, the surface plate can absorb the dimensional change due to the expansion and contraction of the door due to the temperature change and the humidity change in the concave decoration frame part. For this reason,
It is difficult for the door to be warped or twisted.

As described above, according to the present invention, it is possible to provide a door which is easy to manufacture, has excellent sound insulation and heat insulating properties, and has little deformation such as warp and twist.

Next, as in the second aspect of the present invention, the porous core material is composed of an insulation board, and the porous core material has a frame-shaped recess in a portion facing the decorative frame portion. Therefore, it is preferable that a hollow portion is formed between the inner wall of the frame-shaped recess and the decorative frame portion of the surface plate.

As a result, in the hollow portion, the frame-shaped recess of the porous core material is in a free state (see FIG. 1). For this reason, the frame-shaped concave portion can more easily absorb the dimensional change due to the expansion and contraction of the door. For this reason,
It is even more difficult for the door to be warped and twisted.

Next, as in the invention of claim 3, it is preferable that the surface plate is a fiber plate having a density of 0.7 to 1.2 g / cm ³ . As a result, a stronger door can be obtained. As the fiber board, for example, M
DF (Medium Density Fiber Board), HB
(Hard board) or the like can be used.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment Example A door according to an embodiment example of the present invention will be described with reference to FIGS. 1 to 5. As shown in FIG. 1, FIG. 4 and FIG. 5, the door 1 of this example has a frame member 13 assembled in a frame shape, and porous core members 15, 150, 151, 152 arranged inside the frame member 13.
And the surface plate 2 provided on the front side surface 11 and the back side surface 12. In addition, the surface plate 2 is a concave decorative frame portion 2
0 is an integrally molded wooden board with a density of 0.8
It consists of g / cm ³ of HB. In addition, the porous core material 16
Consists of an insulation board with a density of 0.28 g / cm ³ .

As shown in FIG. 1, the porous core material 15 has a frame-shaped concave portion 17 in a portion facing the decorative frame portion 20, and an inner wall of the frame-shaped concave portion 17 and the decorative frame portion 20. A hollow portion 18 is formed between them.

As shown in FIG. 4, the surface plate 2 is provided with three decorative frame portions 20. In the surface plate 2, the portion surrounded by the decorative frame portion 20 is the end plate portion 22 of the door 1, the outside of the decorative frame portion 20 or the portion surrounded by another decorative frame portion 20 adjacent to the decorative frame portion 20. , The vertical frame portion 21 or the horizontal frame portion 23 of the door 1.

As shown in FIGS. 1 to 4, the porous core material 15 has the same size as the outer shape of the frame member 13, and has a rectangular plate-shaped porous core material 150 and the plate-shaped porous core material. The frame-shaped porous core material 151 is attached to both surfaces of the material 150, and has a three-layer structure as a whole.

The frame-shaped porous core material 151 is provided with three quadrangular voids 170. The void 1
A central porous core material 152 is arranged in the 70. Then, the void portion 170 of the frame-shaped porous core material 151.
The frame-shaped recessed portion 17 is formed by the inner peripheral portion and the outer peripheral portion of the central porous core material 152 (FIGS. 2 and 3).

As shown in FIG. 4, the porous core material 15 is fitted and fixed in the inner peripheral portion 131 of the frame material 13, and the surfaces of the frame material 13 and the porous core material 15 in this state. The front plate 2 is attached to each of the side 11 and the back side 12 (FIG. 1). From the above, the door 1 according to this example as shown in FIG. 5 is obtained. In addition, each of the porous core materials 150,
The parts 151, 152, the frame member 13, and the surface plate 2 are fixed by a tacker or an adhesive. Also, the frame 13
As long as there is at least a vertical frame, it is not necessary to have a horizontal frame.

Next, the operation and effect of this embodiment will be described. The surface plate 2 of the door 1 is formed by mixing wood pulp with an adhesive or the like in a molding die, and press-molding this to integrally form the decorative frame portion 20. Therefore, the surface plate 2 is easy to manufacture because it is not necessary to separately combine a plurality of plates to form a frame portion, an end plate portion, and the like. Further, since the surface plate 2 is an integrally molded product, the door 1 can be assembled by attaching the surface plate 2 to the frame material 13 and the porous core material 15 at once. Therefore, the door 1
Is easy to manufacture.

Further, since the porous core material 15 has a large number of holes inside, it is excellent in sound insulation and heat insulation. Further, the surface plate 2 has a concave decoration frame portion 20 in which the door 1 extends due to temperature change and humidity change.
It is possible to absorb dimensional changes due to shrinkage. Therefore, the door 1 is less likely to be warped or twisted. Therefore, according to this example, it is possible to provide the door 1 which is easy to manufacture, has excellent sound insulation and heat insulating properties, and has little deformation such as warpage and twist.

[0022]

As described above, according to the present invention, it is possible to provide a door which is easy to manufacture, has excellent sound insulation and heat insulating properties, and has little deformation such as warp and twist.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a main part of a door according to an exemplary embodiment, taken along the line BB of FIG.

FIG. 2 is a plan view of a porous core material according to an embodiment.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is an explanatory view of the development of the door according to the embodiment.

FIG. 5 is a perspective view of a door according to the exemplary embodiment.

FIG. 6 is a plan view of a door in a conventional example.

FIG. 7 is a sectional view of a door in a conventional example.

FIG. 8 is an explanatory view of a main part of a core material in a conventional example.

[Explanation of symbols]

 1. . . Door, 11. . . Front side, 12. . . Back side, 13. . . Frame, 15. . . Porous core material, 2. . . Surface plate, 20. . . Decorative frame,

Claims (3)

[Claims] 1. A door comprising a frame member, a porous core member disposed inside the frame member, and surface plates provided on the front and back side surfaces of the frame member, wherein the surface plate has a concave decoration. A door characterized by being a wooden board in which a frame part is integrally molded. 2. The porous core material according to claim 1, wherein:
The porous core member has a frame-shaped recess at a portion facing the decorative frame, and the porous core is provided between the inner wall of the frame-shaped recess and the decorative frame of the surface plate. Is a door having a hollow portion. ^3. The door according to claim 1, wherein the surface plate is a fiber plate having a density of 0.7 to 1.2 g / cm ³ .