JP3965520B2 - door - Google Patents

Description

  The present invention relates to a door, and more particularly to a door structure that is suitable for application to a so-called wooden high door having a high height and effectively prevents warping.

Doors widely used as housing fixtures include flush doors and braided doors, and the above flush doors are generally composed of left and right vertical bars and upper and lower horizontal bars, and the necessary middle and core bars. It has a structure in which materials are provided and surface materials are joined to them.
When we focus on the usage environment of these doors, the temperature and humidity of the usage environment vary depending on the season, and the temperature and humidity of the usage environment also differ in the morning, evening or day and night in terms of one day. The temperature and humidity of the use environment differ depending on whether or not the sun is irradiated with light, and the temperature and humidity of the use environment also differ depending on whether heating or cooling is used. In other words, the door itself is placed in a severe temperature and humidity change.
When the temperature and humidity of such a use environment change, the internal stress of the material constituting the door changes mainly due to fluctuations in moisture, which causes a problem of warpage.

  Thus, several proposals have been made to solve this warpage problem. That is, one prior art consists of a door frame portion having left and right ridges and upper and lower horizontal ridges, and a door center portion surrounded by the door frame portions, and the ridges and side ridges of the door frame portions are respectively provided. In a door having a flash structure, which is provided with an outer casing material and an inner casing material, and the inner structure material of the door central portion is joined to the inner casing material, the inner casing material is a corner formed by a thin metal plate material. This technology consists of pipes and has improved the rigidity of the entire door. (See Patent Document 1)

Japanese Patent Laid-Open No. 7-197750 (Claims, Claims 1 and Effects of the Invention and FIG. 1)

  The other consists of a middle plate surrounded by door rail members having left and right vertical rails and upper and lower horizontal rails. A wooden door having an outer holding bar arranged and joining a face material to both front and back surfaces between the inner holding bar and the outer holding bar, and an inner plate of a central portion of the door being joined to an inner side surface of the inner holding bar The inner holding bar has a first concave groove on the inner side surface of which the outer peripheral edge of the middle plate can be mounted, and a second concave groove along the longitudinal direction on the outer side surface thereof. A frame is joined to the front and back of the periphery of the joint portion of the middle plate mounted in the first concave groove, and a metal square pipe 14 is fitted into the second concave groove. (See Patent Document 2)

JP 2001-280026 (Claims, Claims 1 and 3)

  According to the above prior art, if the door component is to be warped, the rigidity of the metal square pipe resists the warpage, so that the warpage is surely prevented, and after the warpage has temporarily occurred, Since the metal square pipe has a restoring force, the warping of the door is restored by the restoring force.

  However, the prevention of warping by the metal square pipe is due to the function of the rigidity and restoring force of the metal square pipe as described above, and the door structural member is generated in accordance with the change in temperature and humidity based on the change of the door use environment. It is not intended to prevent warping by actively preventing changes in internal stress. Therefore, there is a limit to preventing the door from warping.

  In particular, in the case of these prior arts, the interior space of the door is closed even if it has a metal square pipe for restoring warpage. On the other hand, since the air confined in the interior moves upward as the temperature rises, high-temperature air is unevenly distributed above the interior of the door. Further, the air that has become heavy due to moisture is unevenly distributed downward in the door. Then, the temperature and humidity distribution of the air in the internal space over and under the door becomes non-uniform. In particular, when the temperature and humidity of the environment change due to changes in the environment in which the door is used, that is, seasonal fluctuations, day and night, the presence or absence of sunshine, the presence or absence of heating and cooling, etc., the temperature and humidity distribution in the internal space becomes uneven. Then, the fluctuation of the internal stress becomes large, and it becomes easy to generate warp, and there is a limit only with the metal square pipe.

  In particular, in the case of a door having a height of about 2400 mm referred to as a so-called high door, warping is likely to occur as much as the height is high. Therefore, it was difficult to manufacture wooden hide doors. This point will be explained in more detail. Even when a metal square pipe is provided, if it is only that, the maximum deformation amount is 7mm and the residual deformation amount is less than 3mm, and only the metal square pipe prevents the warpage of the high door. It was not enough to do. Therefore, in order to make a conventional high door, the general thickness of the wooden door is 30 to 36 mm, but it is thickened to about 45 mm, strengthened with glass, or reinforced with aluminum metal on the outside It took a time-consuming structure.

  Therefore, the object of the present invention is that when the door is temporarily warped or twisted due to a sudden change in temperature and humidity of the usage environment or usage, In addition to providing a door that can restore the original function of warping and twisting with a metal square pipe, an air inlet / outlet hole is formed in the upper and lower rails, through the air inlet / outlet, from the inside of the door to the outside, from the outside to the inside The temperature of the air in the internal space over the top and bottom of the door even when the environment changes due to the severe door usage described above, even if the air temperature and humidity in the internal space are naturally equalized over the top and bottom of the door. The present invention is to provide a door that equalizes each part according to the change, makes the temperature difference and humidity difference inside and outside the door up and down substantially uniform, and prevents warping and twisting. In addition, air inlet / outlet holes are formed in the upper and lower rails to prevent people from reaching the line of sight, without causing problems in appearance, and achieving the above object without impairing the degree of freedom in design of the door surface. It is in.

In order to achieve the above object, the invention of claim 1 of the present application has a crosspiece member formed by connecting upper and lower crosspieces in the upper and lower sides between the left and right vertical crosspieces, and a core material in the internal space of this crosspiece member There Ri formed by bonding a surface material to the surface in the housed manner, air access holes for communicating the outer and inner space of the door in each of the upper and lower bars are formed, to constituent pieces of the core material Thus, In the door in which an air inlet / outlet hole for allowing air to flow through the core material is formed , a plurality of the air inlet / outlet holes are formed along the longitudinal direction of each of the upper and lower rails, and in the inner space. Further, when disposing at least one metal pipe along each of the vertical rails, a gap is formed between the upper end of each of the metal pipes and the upper rail, and each of the metal pipes The gold so that a gap is formed between the lower end of the The upper桟又the upper and lower ends of the pipe is a door, characterized in that disposed without contacting the bottom rail.

Furthermore, the invention of claim 2 of the present application has a crosspiece member in which the upper and lower crosspieces are coupled to each other between the upper and lower vertical crosspieces, and the core material is housed in the internal space of the crosspiece member. surface material Ri formed is bonded to the surface, the air access port for communicating the outside and the internal space of the door in each of the upper and lower crosspiece is formed, a gap for circulating air around the even upper core Thus In the formed door, the air inlet / outlet hole is formed in a plurality along the longitudinal direction of each of the upper and lower beams, and at least one of the air beams is formed along the vertical beam in the internal space. When arranging the metal pipe, a gap is formed between the upper end of each of the metal pipes and the upper beam, and a gap is formed between the lower end of each of the metal pipes and the lower beam. So that the upper and lower ends of the metal pipe are in contact with the upper or lower rail. A door characterized by being provided without the.

According to the present invention, when a door is temporarily warped or twisted due to a sudden change in temperature and humidity of the use environment or usage, the warp or twist is reduced to a metal angle. Not only can you provide a door that can function to be restored to its original shape by a pipe, but also form an air inlet / outlet hole in the upper and lower rails, let the air go in and out of the door through the air inlet / outlet, Even if the temperature and humidity of the air in the interior space naturally equalize over the top and bottom of the door, and the above-mentioned severe changes in the use of the door occur, the temperature and humidity of the air in the interior space over and under the door are changed. Accordingly, it is possible to provide a door that equalizes each part and makes the temperature difference and humidity difference between the inside and outside of the door up and down substantially uniform to prevent warping and twisting. In addition, air inlet / outlet holes are formed in the upper and lower rails to prevent people from reaching the line of sight, without causing problems in appearance and achieving the above object without impairing the degree of freedom in design of the door surface. .
More specifically, the present invention has both the provision of a metal square pipe and the provision of an air inlet / outlet hole or an air passage. In other words, the metal square pipe gives a restoring force against warping and keeps the maximum deformation amount and deformation residual amount below a certain level, but there is a limit to that and it is not suitable for high door use. Become. In addition, the air access hole has the effect of equalizing the temperature and humidity of the air in the internal space and quickly returning the air state in the internal space, but if that is the only way, by repeated deformation, It was found that the maximum deformation amount and the residual deformation amount gradually increased. Therefore, the formation of air inlet / outlet holes is not suitable for use in high doors. However, when these two are provided, the warp can be effectively prevented, and it functions sufficiently as a warp for high doors.

Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 to 7 show an example in which the present invention is applied to an example of a flash type door. In the first embodiment shown in FIGS. 1 to 7, reference numeral 1 denotes an entire flash type door. The door 1 is composed of two left and right vertical bars. Reference numerals 2a and 2b indicate left vertical bars, and reference numerals 2c and 2d indicate right vertical bars. These left and right vertical rails 2a, 2b and 2c, 2d are connected by an upper rail 3a in the upper part and are connected by two lower rails 3b, 3c in the lower part. Thereby, the crosspiece 4 is comprised. In the case of this embodiment, a so-called hide door having an upper and lower height of about 2400 mm is taken as an example.

  A space 5 is defined inside the crosspiece member 4, and an intermediate crosspiece 6 is mounted therein, and a necessary core material, for example, a core material 7 having a honeycomb structure is accommodated, and surface materials 8 a and 8 b are respectively provided on the front and back sides. By attaching it, a general flash type door is formed. Of course, this example is merely an example, and is simply described, and there are various other structures.

In the present invention, the following device is applied to such a flash type door.
First, as a premise, metal square pipes 9a and 9b are provided vertically in the internal space 5 along the vertical rails 2a and 2b or 2c and 2d. At that time, the metal square pipes 9a and 9b are formed such that a gap M is formed between the upper end A of each of the metal square pipes 9a or 9b and the upper rail 3a, and the metal square pipes 9a or 9b. The upper and lower ends A and B are disposed without being in contact with the upper rail 3a or the lower rail 3b so that a gap N is formed between each lower end B and the lower rail 3b. As the metal square pipes 9a and 9b, in the illustrated embodiment, a steel pipe having a U-shaped cross section is shown, but a square or other irregular metal square pipe may be used.

In order to attach the metal square pipe vertically along the vertical rail, in this example, the metal square pipe 9a on the door end side is attached to the vertical rail 2b by the mounting members 10, 11 and 12 arranged at intervals in the vertical direction. The metal square pipe 9b on the attachment and suspension side is shown as an example of attachment using a nail (not shown) on the vertical beam 2d. Other mounting methods may be used.
Now, the metal square pipes 9a and 9b can be used when the door is temporarily warped or twisted due to a sudden change in temperature and humidity of the usage environment, or when the door is temporarily deformed. It is provided in order to exhibit the function of restoring torsion based on its restoring force.

The first contrivance is that a plurality of air access holes 13 are formed in the upper and lower bars 3a, 3b, 3c of the door. In the illustrated example, the air inlet / outlet hole 13 is formed with a plurality of grooves for communicating the inner space 5 and the outer space 14 on the end face 15 of each of the upper rail 3a or the lower rails 3b, 3c. By covering with 8b, a plurality of air inlet / outlet holes communicating with the inner space 5 and the outer space 14 are formed as a result . However, a plurality of air inlet / outlet holes such as through holes that communicate the outer space 14 with the inner space 5 may be formed at or near the central region 16 of each of the upper and lower rails 3a, 3b, 3c.

In this way, the design of the door is not hindered by forming the air inlet / outlet holes 13 in the upper and lower bars 3a, 3b, 3c instead of the door surface materials 8a, 8b. That is, if the air inlet / outlet holes are formed in the surface materials 8a and 8b, the air inlet / outlet holes 13 are exposed on the surface of the door. Accordingly, when various designs are made on the surface of the door as required, the degree of freedom in design is hindered due to the presence of the air inlet / outlet holes. Similarly, even when the air inlet / outlet holes are formed on the side surfaces of the door end side and the suspension base side, it is not preferable in appearance because it is formed at a position that matches the line of sight of the person entering / exiting the door. However, when the air entrance / exit holes are formed in the upper and lower rails, there is no problem in appearance because the human eye does not reach, and the degree of freedom in designing the door surface is not hindered.

The reason why a plurality of air inlet / outlet holes 13 are formed in the upper and lower rails is as follows. That is, when the air in the internal space 5 of the door is substantially confined in the internal space 5, the air whose temperature is high is unevenly distributed upward in the internal space 5, or heavy air containing a lot of moisture is It will be unevenly distributed below the internal space 5. In any case, the temperature and humidity of the air are not equalized over the top and bottom of the internal space 5. In such a case, the temperature difference and the humidity difference between the inside and outside of the surface materials 8a and 8b are not uniform in each part of the door in the vertical direction. If this is repeated, warping and twisting of the surface materials 8a, 8b, etc. will occur.
This is especially true when the temperature and humidity of the door usage environment change abruptly according to seasonal fluctuations, time fluctuations in the morning and evening, or when the door usage environment changes due to the presence or absence of sunlight, heating or cooling. Defects appear.
However, a plurality of air inlet / outlet holes 13 are formed in the upper and lower rails 3a, 3b, 3c as in the present invention, and at least one metal pipe 9a or 9b is arranged in the internal space 5 along each of the vertical rails 2a, 2b. When installing, a gap M is formed between the upper end A of each of the metal square pipes 9a or 9b and the upper rail 3a, and a gap N is formed between the lower end B of each of the metal square pipes 9a or 9b and the lower rail 3b. If the upper and lower ends A and B are arranged without being in contact with the upper rail 3a or the lower rail 3b, air enters and exits from the inside of the door through the air inlet / outlet 13 and from the outside to the inside. Air temperature and humidity are naturally equalized over the door. Therefore, even if the above-mentioned severe changes in the use of the door occur, the temperature and humidity of the air in the internal space 5 extending up and down the door are easily equalized by circulation of the internal and external air according to the change. The temperature difference and humidity difference between the inner and outer surface materials 8a and 8b in the direction are almost uniform in each part to prevent warping and twisting.

And the 2nd device in this Example exists in the point which formed the air inlet / outlet also in the core material 7 with which the said internal space 5 is filled. That is, various core materials 7 can be considered, but a honeycomb structure can be used as an example. In the case of this honeycomb structure, a plurality of core component pieces 18 enclose a space to form a honeycomb structure core, and the core is a closed space. Air inlet / outlet holes 19 are formed so that air can easily flow through the inner space 5 through the core material 7 having the honeycomb structure, and the temperature and humidity of the air in the inner space 5 over and under the door are made almost uniform. Is.
For this purpose, an air inlet / outlet hole 17 is also formed in the middle rail 6.

As described above, in the case of the first embodiment, the metal pipes 9a, 9b, 9c provide a restoring force against the warp and twist of the door, and the air inlet / outlet holes 13 in the upper and lower bars 3a, 3b, 3c, the gap M, and N, air access port 17 of the air access port 19 and the middle rail 6 formed on the core material 7 is occurred a natural flow of air in the interior space 5, the temperature of air in the interior space 5 over door vertically, humidity Since the warpage prevention function by equalization is provided, the two together prevent the warpage of the door better.

The example of FIG. 8 is a second embodiment of the present invention, and is an example in the case where the number of vertical bars 2a on the door end side is one. The same components as those in the first embodiment are denoted by the same reference numerals. Also in this case, the warpage of the door is prevented by both the metal square pipe and the air inlet / outlet hole as in the first embodiment.

The example of FIG. 9 is a third embodiment of the present invention, and is an example in which the metal square pipe on the suspension side is removed and only one metal square pipe 9a is provided on the door end side as compared with the example of FIG. . The same components as those in the first embodiment are denoted by the same reference numerals. In the case of Example 3, as in Example 1, the warp of the door is prevented by both the metal square pipe and the air inlet / outlet hole.

Next, a fourth embodiment of the present invention will be described with reference to FIG.
In the case of the fourth embodiment, a gap 20 is formed around the core material 7 of the honeycomb structure (without forming the air inlet / outlet holes 19 in the constituent pieces 18 of the core material 7 of the honeycomb structure), and the internal space 5. It improves the flow of air over and under the door. The same components as those in the first embodiment are denoted by the same reference numerals. Also in the case of the fourth embodiment, the interior space 5 of the door and the outside of the door are a plurality of air inlet / outlet holes 13 , the gap M between the upper end A of the metal square pipes 9 a and 9 b and the upper rail 3 a, and the metal corner. The pipes 9a and 9b communicate with each other by a gap N between the lower end B of the pipe 9b and the lower rail 3b. In the internal space 5, the air flow path is partitioned by the gap 20, so the temperature and humidity of the air over and under the door are almost the same. It is made uniform. Accordingly, the warpage of the door is better prevented in combination with the warpage prevention by the restoring force of the metal square pipes 9a and 9b. The gap 20 around the core material 7 may be a gap in which an air flow path is formed by arranging the core material at intervals (without being dense). That is, it is not necessary to be the outermost periphery of the core material 7. Further, after forming a gap 20 around the core material 7, an air inlet / outlet hole 19 may be provided in the component piece 18 as in the first embodiment.

Next, a fifth reference example will be described in detail with reference to FIG.
The feature of this reference example is that metal square pipes 9a and 9b are used, a gap 20 is provided around the core material 7, and the gap M and the metal pipe are provided between the upper end A of each of the metal pipes 9a or 9b and the upper rail 3a. although it forms a gap N between the lower end B and Shita桟3b of 9, the upper and lower crosspiece 3a, 3b, an example in which no particular provided air access holes 3c. In this way, although air is substantially confined in the internal space 5, since the gap 20 is formed around the core material 7, the air circulates up and down using the gap 20 as a flow path. That is, the air rises when it is warmed, and conversely when it is cooled, it descends, so that air flows there. If the interior space 5 of the door is completely filled with the core material 7, this air flow does not occur. Therefore, there is air that is biased in the interior space 5 and contains a lot of high-temperature air or moisture. The distribution of air in the internal space 5 over and under is nonuniform in terms of temperature and humidity. As a result, the surface material over and under the door is likely to be warped. However, if there is a gap 20 around the core material 7 in the internal space 5 as in this embodiment, air flows up and down using the gap 20 as a flow path. The distribution of air in the internal space 5 tends to be homogenized in terms of temperature and humidity, and the occurrence of door warpage is prevented. In addition, when the air inlet / outlet holes are not formed in the upper and lower rails 3a, 3b, 3c, although not shown in addition to this embodiment, the gap 20 is not formed around the core material 7, but the constituent pieces of the core material 7 are not shown. An air inlet / outlet hole 19 may be formed in 18 to generate an air flow in the internal space 5 through the core material 7, and an air inlet / outlet hole 19 of the core material 7 may be formed and the core material 7. As shown in this embodiment, a gap 20 may be defined around the.

Next, another reference example will be described in detail with reference to the accompanying drawings and FIGS. This reference example is an example in which the present invention is applied to a braided door. Reference numeral 21 in the figure denotes a saddle assembly door, which has vertical rods 24a and 24b on the left and right. Each of the left and right vertical rods 24a and 24b in this example is configured by connecting the vertical core members 22a and 22b or 22c and 22d with upper and lower core members 23a and 23b. In FIG. 12, only the upper core members 23a and 23b can be seen, and the lower core member is not shown in the figure, but is present in the same manner. Then, the vertical rods 24a and 24b and the horizontal rods 24c and 24d are assembled. This establishes the door pier with a Kashigumi-style design. An intermediate plate 26 is provided inside the vertical and horizontal flanges 24a, 24b, 24c, and 24d, and the surface material 25 is joined to each of the vertical and horizontal flanges 24a, 24b, 24c, and 24d.

  In the present invention, the metal square pipes 27a and 27b are provided vertically along the vertical core members 22a, 22b, 22c and 22d in the internal space 29 of the vertical rods 24a and 24b. Then, although not explicitly shown in the upper core members 23a and 23b and FIG. 12, air inlet / outlet holes 28 are formed in the lower core member. The air inlet / outlet hole 28 is formed by forming grooves on the end surfaces of the upper and lower core members 23a and 23b and covering the surface material 25 on the end surfaces of the upper and lower core members 23a and 23b. 30 is communicated by the air inlet / outlet hole 28.

Accordingly, also in this reference example, the metal square pipes 27a and 27b give a restoring force to the warp of the door, while air enters and exits the internal space 29 from the outside 30 through the air inlet / outlet hole 28. The temperature and humidity of the air across the top and bottom are made uniform. Therefore, the temperature distribution and humidity distribution on the top and bottom of the door are substantially uniform, and the cause of warping is greatly eliminated. For this reason, even if the use environment of the door changes suddenly due to seasonal fluctuations, morning and evening time fluctuations, presence / absence of sunlight irradiation, heating / cooling use, etc., the warping of the doors is effectively prevented.
In this embodiment, since it is a glazed design door, an example is shown in which the core material is not inserted into the internal space 29. However, in a special case where the core material is inserted, an air inlet / outlet hole is formed in the core material. Or a gap may be formed around the core material.

Next, based on FIGS. 15 to 20, comparative examples 1, 2 and 3 which will be described later with respect to the structural differences, the evaluation of the appearance defects, and the above-described Examples 1, 2 and 3 regarding the heating irradiation deformation test results. The result compared with is shown.
First, a comparative example will be described. FIGS. 18, 19 and 20 show the comparative examples 1, 2 and 3 of the flash type door in order, respectively, and FIG. 18 is provided with the metal square pipes 9a and 9b. , 3b, 3c have no air inlet / outlet holes, the honeycomb core material 7 has no air inlet / outlet holes, and there is no gap around the core material 7. On the contrary, in the example of FIG. 19, an air inlet / outlet hole 13 is formed in the upper and lower rails 3 a, 3 b, 3 c and an air inlet / outlet hole 17 is formed in the middle rail 6. It is a door. The example in FIG. 20 has two vertical bars 2a and 2c on the left and right sides, as compared with the example in FIG. It is the same as the comparative example.
Note that the same reference numerals are given to the same components in the comparative example of FIGS. 18 to 20 and the components in the first embodiment.

  First, the diagram of the difference in structure in FIG. 15 summarizes the differences between the above-described Examples 1, 2, and 3 and Comparative Examples 1, 2, and 3. In this chart, the meaning of reinforcing vertical bars means that there are two bars (i.e., numerals 2a and 2c) as compared with the one with the left and right vertical bars (for example, those of numerals 2a and 2c). , 2c and 2d).

FIG. 16 is a chart summarizing the results of the appearance defects regarding the items of a. Warpage and b. Open / close failure of the doors of each structure after undergoing the heat irradiation deformation test shown in FIG. Indicates an evaluation when no occurrence occurs, Δ indicates a slight occurrence, and x indicates an occurrence. In the case of the door of Example 1, both a and b were ◯. In both Examples 2 and 3, a and b were ◯. On the other hand, Comparative Example 1 was x for both a and b. In Comparative Examples 2 and 3, a was Δ and b was ◯.
As can be seen, both the provision of a metal square pipe and the equalization of the temperature and humidity distribution of the air in the internal space due to the flow of air inside and outside the door through the air access holes provided in the upper and lower rails Functions and door warping is prevented.

FIG. 17 shows the result of the heating irradiation deformation test of each door. The purpose of this test is to check the deformation and change of the door against heat, with the safety of the door as a test item. The doors of Examples 1 to 3 and Comparative Examples 1 to 3 as test bodies are actually used, and one side of each door is heated by radiant heat of about the level of solar heat to examine out-of-plane deformation (warping). It was.
The test method is to install in a rigid housing that is not deformed by heat in accordance with the actual construction, irradiate one side of the door with radiant heat of 700 Kcal / m ² hr for 8 hours, and then leave it for 16 hours. The heating was repeated for 5 cycles with 24 hours as one cycle, and the maximum deformation amount and residual deformation amount of each door were measured.
The result is FIG. 17, and the vertical axis represents the deformation amount (mm). As can be seen from this, the door of Example 1 had the maximum deformation amount of 5.06 mm and was the smallest among the test examples, and the residual deformation amount was 1.26 mm and the second smallest. The door of Example 2 had a minimum residual deformation of 0.71 mm, and the door of Example 3 was 1.27 mm. In contrast, Comparative Examples 1, 2, and 3 had residual deformation amounts of 2.36 mm, 2.93 mm, and 3.25 mm in this order. In addition, the maximum deformation was also relatively large, 7.09 mm, 6.96 mm, and 13.7 mm.
As can be seen from these facts, the provision of a metal square pipe and the equalization of the temperature and humidity distribution of the air in the internal space due to the flow of air inside and outside the door through the air access holes provided in the upper and lower rails Both functions and door warpage is prevented. In particular, a so-called high door that has a height of about 2400 mm is likely to be warped by a height (long), but if it is configured as described above, a high door without warp can be easily provided. it can.
More specifically, in the case of Comparative Example 1, since there is no air inlet / outlet hole and only a metal square pipe, the maximum amount of deformation is large as described above, and in Comparative Example 3 there is no metal square pipe and only the air inlet / outlet hole. Therefore, the maximum deformation amount is large as described above. However, the first and second embodiments can reduce the maximum deformation amount and the residual deformation amount as described above, and the third embodiment can reduce the residual deformation amount as described above. This is because both the metal square pipe and the air inlet / outlet hole are provided.

The perspective view which fractured | ruptured and showed the part which shows the flash type door of 1st Example of this invention. The front view of the aspect which removed the surface material of the flash type door of the 1st Example. The top view of the flush type door of a 1st Example. The bottom view of the flash type door of a 1st Example. Sectional drawing which follows the 5-5 line of FIG. The fragmentary perspective view of an example of the core material used in the 1st Example. The other fragmentary perspective view of an example of the core material used in the first embodiment. The front view similar to FIG. 2 which shows the flash type door of the 2nd Example of this invention. The front view similar to FIG. 2 which shows the flash type door of the 3rd Example of this invention. The front view similar to FIG. 2 which shows the flash type door of the 4th Example of this invention. The front view similar to FIG. 2 which shows the flash type door of the reference example of this invention. The perspective view which fractured | ruptured and showed the part which shows the bag design door of the other reference example of this invention. Sectional drawing which follows the 13-13 line | wire of FIG. 12 of the coffin design door of another reference example. Sectional drawing which follows the 14-14 line | wire of FIG. 12 of the coffin design door of another reference example. The chart about the difference in structure of Examples 1-3 and Comparative Examples 1-3. The chart which shows evaluation about the defect on appearance. The figure which shows a heating irradiation deformation | transformation test result. The figure similar to FIG. 2 which showed the comparative example 1 shown in FIG.15, FIG.16, FIG.17. The figure similar to FIG. 2 which showed the comparative example 2 shown in FIG.14, FIG.15, FIG.16. The figure similar to FIG. 2 which showed the comparative example 3 shown in FIG.14, FIG.15, FIG.16.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Flash door 2a, 2b, 2c, 2d Vertical beam 3a Upper beam 3b, 3c Lower beam 4 Beam member 5 Internal space 6 Middle beam 7 Core material 8a, 8b Surface material 9a, 9b Metal square pipe 10, 11, 12 Mounting member 13 Air inlet / outlet hole 14 Outer 15 End face 16 Central region 17 Air inlet / outlet hole 18 formed in the middle rail 19 Core component piece 19 Air inlet / outlet hole 20 formed in the component piece Air gap 21 around the core member 7 框Assembly door 22a, 22b Vertical core material 22c, 22d Vertical core material 23a, 23b Upper and lower core material 24a, 24b Vertical rod 24c, 24d Horizontal rod 25 Surface material 26 Middle plate 27a, 27b Metal square pipe 28 Air inlet / outlet hole 29 Internal space 30 outside
A Top end of metal square pipe
B Bottom of metal square pipe
M The gap between the upper end of the metal square pipe and the upper rail
N The gap between the lower end of the metal square pipe and the lower beam

Claims (2)

It has a crosspiece member 4 formed by connecting the top and bottom crosspieces 3a and 3b in the upper and lower sides between the left and right vertical crosspieces 2a and 2b, and the core member 7 is housed in the internal space 5 of the crosspiece member 4. surface material 8a, 8b is Ri formed is bonded to the surface, the upper and lower crosspiece 3a, air access port 13 for communicating the outer 14 and the inner space 5 of the door in each of 3b is formed, Thus also the core 7 In the door in which the air inlet / outlet hole 19 for allowing air to flow through the core member 7 is formed in the component piece 18 ,
A plurality of the air inlet / outlet holes 13 are formed along the longitudinal direction of each of the upper and lower rails 3a and 3b.
Moreover, when arranging at least one metal pipe 9a or 9b along the vertical rails 2a and 2b in the internal space 5,
A gap M is formed between the upper end A of each of the metal pipes 9a or 9b and the upper beam 3a, and a gap N between the lower end B of each of the metal pipes 9a or 9b and the lower beam 3b. The door is characterized in that the upper and lower ends A and B of the metal pipe 9a or 9b are arranged without being in contact with the upper rail 3a or the lower rail 3b . It has a crosspiece member 4 formed by connecting the top and bottom crosspieces 3a and 3b in the upper and lower sides between the left and right vertical crosspieces 2a and 2b, and the core member 7 is housed in the internal space 5 of the crosspiece member 4. surface material 8a, 8b is Ri formed is bonded to the surface, the upper and lower crosspiece 3a, air access port 13 for communicating the outer 14 and the inner space 5 of the door in each of 3b is formed, Thus also the upper core 7 In a door in which a gap 20 for circulating air around is formed ,
A plurality of the air inlet / outlet holes 13 are formed in each of the upper and lower bars 3a and 3b along the longitudinal direction thereof, and at least one of the air inlet / outlet holes 13 is formed in the inner space 5 along each of the vertical bars 2a and 2b. When arranging the metal pipe 9a or 9b,
A gap M is formed between the upper end A of each of the metal pipes 9a or 9b and the upper beam 3a, and a gap is formed between the lower end B of each of the metal pipes 9a or 9b and the lower beam 3b. A door characterized in that the upper and lower ends A and B of the metal pipe 9a or 9b are arranged without being in contact with the upper rail 3a or the lower rail 3b so that N is formed .

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