JPS6345505Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a non-deformable door structure that does not undergo deformation due to temperature differences between front and back surfaces.

Conventional doors constructed by pasting decorative panels such as veneer plywood on the front and back surfaces have the disadvantage of being deformed due to temperature differences between the front and back surfaces, causing problems such as warping.

The object of the present invention is to provide a non-deformable door structure which eliminates the above-mentioned problems, has a simple structure, does not cause thermal deformation, and is soundproof and fireproof.

The non-deformable door according to the present invention includes a rigid core board material fixed between front and back decorative plates whose respective peripheral edges are bounded by a decorative edge so that the peripheral edge protrudes outward from the decorative edge; A first rod-shaped core material fixed along the outer periphery of the decorative edge on both the front and back surfaces of the peripheral edge of the rigid core plate material, and a first rod-shaped core material fixed at a slight interval from the first rod-shaped core material in parallel to the first rod-shaped core material. a second rod-shaped core material disposed on the outside; and a second rod-shaped core material fixed to both outer surfaces of the first rod-shaped core material and the second rod-shaped core material, respectively. In the door structure constituted by a decorative plate that connects and fixes a rod-shaped core material, a concave groove is formed on the inner peripheral surface of the second rod-shaped core material, and each outer peripheral edge of the rigid core plate material is The material is tightly fitted into the groove to restrain relative movement of the outer periphery of the rigid core plate in the width direction of the groove, while allowing relative sliding in the depth direction. This is a characteristic feature.

With this structure, the door of the present invention has a rigid core material such as plasterboard that does not undergo thermal deformation due to temperature differences, and is installed inside the rod-shaped core material in the center to prevent deformation. The core material is fixed to the rigid core plate material, and the outer peripheral edge of the rigid core plate material is tightly fitted into the groove formed on the inner periphery of the outer rod-shaped core material, preventing movement in the width direction, and preventing movement in the depth direction. Because it is slidable, even if the decorative plate on the outside of the door tries to warp, it will not easily deform.The rigid core plate material effectively prevents warping and prevents deformation. Benefits can be obtained.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 shows a front view of a door made according to the present invention without any handles or the like attached. As shown in Fig. 3, this door has a rigid core material 3 such as gypsum board with little heat deformation attached to both sides of a decorative board 2 made of plywood or the like whose periphery is bounded by a decorative edge 1. A rod-shaped core material 4 is firmly fixed to both surfaces of the four circumferential edges 3a extending outward from the decorative edge 1 of the core plate material 3 in contact with the decorative edge 1 with adhesive, staples, etc. At the same time, the outer edges 3b of the four circumferences of the core plate material 3 are tightly fitted into the grooves 5a formed on the inner peripheral surface of the rod-shaped core material 5 arranged along each outer circumference of the core plate material 3, so that Although it is prevented from moving relative to the core material 5 in the width direction, it is allowed to slide in the depth direction of the groove 5a.

Decorative boards 6 made of plywood or the like are attached to both sides of the core materials 4 and 5, and decorative boards 7 are attached to the left and right outer peripheries.

Figure 2 shows the decorative edge 1 and decorative plate 2 of the door mentioned above.
The arrangement of the core board material 3, the core materials 4 and 5, and the auxiliary cladding board 7 shown except for 6 is shown.

Note that a mounting member 8 for attaching a handle or the like is provided in a portion where the core plate material 3 is cut out, if necessary.

Since the door according to the present invention is constructed as described above, even if there is a tendency for the door to warp due to the large temperature difference between the two sides and the thermal distortion of the plywood material, the rigid core plate material 3 with little thermal deformation prevents the entire warpage. In particular, even if the decorative plates 6 on both sides supported by the core material 4 fixed to the core plate material 3 warp due to the difference in thermal strain, the outer edge 3b of the core plate material 3 will simply bend. Because it is tightly fitted in the groove 5a of the core material 5 so as to be slidable in the depth direction, and relative movement is prevented between the core material 5 and the outer edge 3b in the width direction of the groove 5a. The peripheral edge 3a of the core plate material 3 is dragged by the thermal expansion and contraction of the decorative plate 6.
The rigidity of the rigid core plate material 3 without thermal distortion is utilized extremely effectively to prevent the decorative plate 6 from warping, thereby reliably preventing the door from warping due to heat. Due to the nature of the board used, excellent soundproofing and fireproofing properties can be obtained, and test results have also proven that the door of the present invention has a remarkable effect on preventing thermal deformation.

[Brief explanation of drawings]

Fig. 1 is a front view of the door according to the present invention. Fig. 2 is a front view showing the arrangement of the rigid core plate material and the rod-shaped core material of the door of Fig. 1. Fig. 3 is a partial cross-sectional view taken along line - of Fig. 1. 1 ... decorative edge, 2, 6 ... decorative plate, 3 ... rigid core material,
4, 5...rod-shaped core material, 7...oder cladding board.

Claims (1)

[Scope of utility model registration request] A rigid core board material fixed between the front and back decorative boards whose peripheral edges are bounded by a decorative edge so that the peripheral edge protrudes outward from the decorative edge, and a peripheral edge of the rigid core plate material. A first rod-shaped core material fixed along the outer periphery of the decorative edge on both the front and back surfaces, and a second rod-shaped core material arranged outside of the first rod-shaped core material parallel to the first rod-shaped core material at a slight distance therefrom. A rod-shaped core material, and each of the first rod-shaped core material and the second rod-shaped core material is fixed to both outer surfaces of the rod-shaped core material, and the first rod-shaped core material and the second rod-shaped core material are connected and fixed. In the door structure, a concave groove is formed in the inner peripheral surface of the second rod-shaped core material, and each outer peripheral edge of the rigid core plate material is tightly fitted into the concave groove. let me,
A structure for a non-deformable door, characterized in that relative movement of the outer peripheral edge of the rigid core plate material in the width direction of the groove is restrained, and relative sliding movement in the depth direction is enabled.