JP2869737B2 - Structure of artificial wood door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a structure of a man-made wood door having a main body made of a plate mainly composed of calcium silicate mixed with fibers, and particularly to a structure of a material used. The present invention relates to a structure of a man-made wood door utilizing characteristics and improving strength as a door.

[Prior art] Natural wood has been used as a structural material and a finishing material since ancient times, but artificial wood has been developed due to its characteristics or industrial reasons. ,
Plywood and laminated wood with improved fiber directionality, and particle boards obtained by solidifying and homogenizing chip materials are well known. However, these man-made timber cannot leave the inherent "flammable" properties of wood. Therefore, in recent years, inorganic artificial wood has been developed that can be replaced with wood by starting from artificial materials and moving away from natural wood, and this type of artificial wood is mainly composed of calcium silicate New man-made woods mainly composed of zonotolite and added with synthetic resin, glass fiber, etc. have come to be provided mainly as molded plate products. Compared to natural wood, this ceramic artificial wood has almost the same workability with wood tools such as cutting, cutting and drilling, lightweight bulk specific gravity, nail and screw holding power, etc. It has a unique dimensional stability, and in particular has the advantage of being non-flammable against fire heat.

Therefore, although the strength of bending and compression is inferior, it cannot be ignored, but it is gradually used in the field of use of wood, and is not limited to base materials, etc.
Recently, it has been used in the field of fittings such as doors.

7 and 8, the main body 2 of the artificial wood door 1 is obtained by cutting a single sheet of ceramic artificial wood to a predetermined size and forming a frame on both sides. It has a groove of a joint 3 which has been machined, and has a natural material veneer 4 attached to the entire surface, and is hung from a door frame 6 of an opening 5 via a hinge 7. 8 is a lock for opening and closing.

[Problem to be Solved by the Invention] In the structure of the conventional artificial wood door, although the main body 2 has the strength as a whole, there is a brittleness peculiar to the inorganic material, and the hinge 7 and the lock 8 are not installed at the same position. In such a portion where a local load is applied, cracks are likely to occur, and the side edge 9 on the hand side
In this case, the corners are easily damaged by various impacts, and if the veneer plate 4 is damaged, the repair itself is difficult.

In addition, the entire surface of the door 1 is disadvantageous due to its brittleness against impact, which hinders the use of ceramic artificial wood for the door.

Means for Solving the Problems In view of the above circumstances, the present invention has been made for the purpose of removing a defect caused by inorganic-specific brittleness in a door formed of an inorganic material, A door body is integrally formed from a plate body mainly composed of fiber-mixed calcium silicate, and a metal vertical frame is externally fixed to both side edges of the door body. Are formed in a U-shape in horizontal section, and both side edges of the main body are fitted to the inside of the vertical frame so that substantially the entire inner surface of the flange abuts on both sides of the found surface of the main body. It is characterized by that. Preferably, at least on one side of the door, a parting edge is attached to a boundary between an edge of the flange of the vertical frame and a finding surface of the main body. More preferably, a mounting seat such as a hinge or a lock is cut out in the main body, and these fittings are preferably screwed to the vertical frame without directly reaching the main body.

[Embodiment] The configuration of the present invention will be described with reference to an embodiment shown in the drawings. 7 and 8 are common to the corresponding parts. In FIGS. 1 and 2, reference numeral 1 denotes an entire artificial wood door constituted by a ceramic artificial wood as a door, 2 denotes a main body thereof, and the main body 2 has a whole surface protruding therefrom. The board 4 is pasted and finished.

Side edges 9 on the hanging side and the hand side of the artificial wood door 1 of the present invention
Is fitted with a metal vertical frame 10 whose horizontal cross section is bent in a U-shape. As shown in FIG. 3, the surface of the side edge 9 into which the flange 11 is fitted has a step portion 21 formed by sinking the surface by the thickness of the flange 11, and is vertically aligned with the surface of the main body 2. After fully fitting up to the web 12 so that the outer surface of the frame 10 is flush with the outer surface of the frame 10, attach the flange 11 to the step 21 of the main body 2 using the wood screws 20 along the inner edge 13 at regular intervals. It is fixed. The artificial wood door 1 is hung on the door frame 6 by the hinge 7 through the web 12 and the lock 8 is attached in the same manner as in the ordinary method, and the metal portion is finished with a paint such as fluororesin. In FIG. 2, the digging portion for mounting the lock 8 is indicated by 23, the side edge 9 on the hanging side is shown in two stages for the mounting position of the hinge 7 and the general portion, and 24 is the mounting seat of the hinge 7. is there. These digging parts 23, mounting seat 24
Is formed by notching the main body 2, and the above-mentioned metal fittings are screwed to the web 12 of the vertical frame 10 without directly reaching the main body 2 using a backing metal if necessary.

At the border between the inner edge 13 of the flange 11 of the vertical frame 10 and the main body 2, the joint 3 is not formed, but a parting edge 3 A that forms a molding has its legs 31 inserted into the mounting holes 22 of the main body 2. Inserted and attached.

Needless to say, the artificial wood door 1 of the present invention is not limited to the above-described embodiment, and as another embodiment, if shown in FIG. The veneer plate 4 may be attached to the surface of the vertical frame 10 on the hanging side, or (c) may be attached to the vertical frame 10 on both sides to finish. Further, the wood screw 20 for fixing the vertical frame 10 is preferably used also on the web 12 side, and an adhesive may be optionally used in consideration of the holding force of the artificial wood screw.

[Operation] Next, the operation of the present invention will be described based on the results of the physical property test of the artificial wood door 1 of the present invention configured as described above. This test was conducted at the Tsukuba Building Testing Center of Better Living, and firstly, as a test body, a man-made wood door 1 having a simple configuration as shown in the prior art in FIGS. As in the present invention, several artificial wood doors 1 to which the vertical frame 10 was fitted were manufactured, and each of them was used as a test piece P and subjected to an impact resistance test according to JIS standard A-1518.5. FIG. 4 is a side view of the test apparatus. In the figure
40 is a test device, 41 is a weight suspended from a height with a wire 42 and formed of a sand bag. According to JIS, the weight 41 is swung up by an angle α and released at a drop height H when released. The impact on the vertical plane is measured by the displacement meter 43 based on the displacement of the center of the height, and the condition of the test specimen is observed. Reference numeral 44 denotes a fixing device that supports the rear surface of the test object P. The test results are shown in the following table.

As can be seen from these results, the artificial wood door 1 of the present invention
In, the vertical frame 10 is a steel material whose horizontal cross section is U-shaped,
Because of the flange 11 and the web 12, the vertical frame 10 sufficiently reinforces the side edge 9 of the artificial wood door 1. Particularly in the case of a large impact data, the hinge 7 and the lock 8 are loosened. The test was stopped, but the difference that cracks did not occur in the face plate part was remarkable. From the lesson of the test results, it is preferable to use hardwood for the notches 23 and 24 for attaching the hinge 7 and the lock 8.

Further, since the flange 11 is fixed by the wood screws 20 at equal intervals, not only the vertical frame 10 is integrated with the main body 2, but also external forces such as impact and vibration are dispersed to each part of the main body 2,
The wavelength of the vibration characteristics of ceramic artificial wood has become smaller and is sufficiently reinforced.

[Effects of the Invention] The present invention provides a method in which a door main body is integrally formed from a plate mainly composed of fiber-containing calcium silicate, and metal vertical stiles are externally fitted and fixed to both side edges of the door main body. The vertical frame is formed in a U-shape in horizontal cross section from opposed flanges and a web, and the both side edges of the main body portion are so arranged that substantially the entire inner surface of the flange abuts on both sides of the found surface of the main body portion. The vertical frame with horizontal U-shape covers both sides of the calcium silicate plate material, which is vulnerable to local impact and load, as it is inserted into the inside of the vertical frame, so that impact resistance is enhanced. Thus, cracks and defects on both sides of the door body, which are easily affected by various impacts, can be prevented as much as possible.

[Brief description of the drawings]

The drawings show an embodiment of the structure of the artificial wood door according to the present invention. FIG. 1 is a front view of the artificial wood door of the present invention, FIG. 2 is a horizontal sectional view thereof, and FIG. FIG. 4 is a schematic front view of another embodiment, and FIG.
The figure is a front view of a test device for an impact resistance test, and FIGS. 6a, b and c.
Is a front view, an elevation view, and a plan view illustrating the shape of a test specimen, FIG. 7 is a front view showing the structure of a conventional artificial wood door, and FIG. 8 is a horizontal sectional view. 1 ... artificial wood door, 2 ... body part, 3A ... ... parting edge,
4 ... veneer, 5 ... opening, 6 ... door frame, 7 ... hinge, 8 ... lock, 9 ... side edge, 10 ... vertical frame, 11 ... flange, 12 ... web, 13 ... inner edge, 20 ... wood screw, 21
… Step, 22… mounting hole, 23 digging part, 24… mounting seat, 31… leg, 40… test equipment, 41… weight, sand bag, 42… wire, 43 …… Displacement gauge, 44 …… Fixing device, P
…… Test piece, α… Swing angle, H… Fall height.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Osamu Tanaka 2-1-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Sanwa Shutter Industrial Co., Ltd. (72) Miki Aoyama 4-460 Shimoseito, Kiyose-shi, Tokyo Obayashi Corporation Technical Research Institute (72) Inventor Nagao 4-460 Shimoseito, Kiyose-shi, Tokyo Obayashi Corporation Technical Research Institute Co., Ltd. (72) Inventor Ryozo Kuramoto 1-1-7 Toyosu, Koto-ku, Tokyo Onoda Cement Corporation In-house (72) Inventor Ryunosuke Aoyama 1150 Kamekubo, Oi-machi, Iruma-gun, Saitama Pref. Inside Tokyo Branch of Outer Wood Industry Co., Ltd. (56) References JP-A-58-150692 (JP, A) 160848 (JP, U) Japanese Utility Model Showa 60-164589 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) E06B 3/70-3/88

Claims (3)

(57) [Claims] A door body is integrally formed from a plate mainly composed of fiber-containing calcium silicate, and a metal vertical frame is externally fitted and fixed to both side edges of the door body. The flange and the web are opposed to each other, and are formed in a U-shape in horizontal section, and both side edges of the main body portion are formed inside the vertical frame so that substantially the entire inner surface of the flange abuts on both sides of the finding surface of the main body portion. The structure of the man-made timber door, which is fitted to the back of the door. 2. At least on one side of the door, at the boundary between the edge of the flange of the vertical frame and the found surface of the main body,
2. The structure of the artificial wood door according to claim 1, wherein a parting edge is attached. 3. The main body has a notch formed with a mounting seat such as a hinge and a lock, and these metal fittings are screwed to a vertical frame without directly reaching the main body. The structure of the artificial wood door according to claim 1 or 2.