JP6607703B2 - Exterior structure - Google Patents

Description

  The present invention does not cause rainwater intrusion from a screw hole or rainwater intrusion due to capillary phenomenon, and is excellent in workability, as well as an exterior that fully considers strength and watertightness during negative pressure action. Concerning structure.

  The conventional roof called “Yamato-Maki” is a method of mounding in which mountains and valleys are alternately continued. As a fixing method thereof, as a first method, FIGS. 4A and 5A described later are used. In general, two methods are used: a method in which a fixing screw is driven from the side shown in FIG. 4 and a method in which fixing is performed by the gouge fastening shown in FIGS. 4B and 5B as the second method. .

However, the problems of the first method include the problem of intrusion of rainwater from the screw holes of the fixed screw and the loss of screws due to strong wind and aging deterioration.
Further, as problems of the second method, there are a problem that rainwater enters due to a capillary phenomenon due to a goby tightening, and a time-consuming work due to the gouge tightening.

  Further, although the first method and the second method will be described in detail in the description of FIGS. 4 and 5 to be described later, the strength and water tightness during the negative pressure action are not considered at all. Met.

  Therefore, the present invention has an excellent workability without causing intrusion of rainwater from screw holes or infiltration of capillarity in the roof structure of “Yamato thatched”, of course, at the time of negative pressure action. The object is to provide an exterior structure with sufficient consideration for strength and water tightness.

The present invention, which was proposed in view of the above, on the base, left and right side edges of the flat plate portion is bent in the same direction, further the tip is provided with a side edge forming portion that is returned folded inwardly mountainside It is an exterior structure in which a crest and a trough are continuously formed by being alternately arranged as an exterior plate and a trough side exterior plate, and a downward folded piece of an upward side edge molding portion of a trough side exterior plate lower valley side abutment surfaces extend is upward is returned folded further inward, extend to the upper end is returned folded further inwardly downwards downward edge forming part of the upward folded piece of mountain side outer plate and mountain side abutting surface, to a sheath structure, wherein the engaged while in surface contact with the inclined upward shape entirely from the outside to the inside.
The term “entirely” means that, as shown in the illustrated embodiments described later, the crest-side abutment surface and the trough-side abutment surface that are each formed flat form a surface contact portion that is linear in side view. It is in contact (surface contact).
In the following description, the upward folded portion of the downward side edge molding portion of the mountain side exterior plate is referred to as “upper goby”, and the downward folded portion of the upward side edge molded portion of the valley side exterior plate is referred to as “lower goby”. In the illustrated embodiment described later, the downward side edge molding portion itself is described as “upper goby” and the upward molding portion itself is described as “lower gouge”.

  The present invention also proposes an exterior structure characterized in that in the exterior structure, a space that opens upward is formed below the engaging portion.

Further, the present invention provides the exterior structure, wherein the valley-side contact surface and the mountain-side contact surface are in surface contact with each other in a substantially horizontal shape inclined upward from the outside toward the inside. suggest.

  Further, in the exterior structure, the holding member having an upright portion having a fixing portion to the base at the lower end and a folded portion at which the upper end of the rising portion is turned outward is fixed on the base. An exterior structure is also proposed in which the downward folded portion of the upward side edge molding portion of the valley side exterior plate is engaged with the inside of the folded portion of the holding member.

  Furthermore, the present invention also proposes an exterior structure characterized in that a heat insulating material is disposed on the back surface of the mountain-side exterior plate in the exterior structure.

Since the exterior structure of the present invention adopts the engagement of the upper goby and the lower goby, it has excellent workability without causing rainwater intrusion from the screw holes or capillarity caused by tightening the goby. In addition, sufficient consideration is given to strength and water tightness during negative pressure action. In particular, since the gobs are brought into surface contact with each other and engaged, the exterior plates are attached firmly and stably.
In addition, even when negative pressure is applied, the top of the top cover of the mountain side exterior plate moves deeply while maintaining surface contact (in a state where capillary action is prevented) and approaches the bottom of the valley side exterior plate. Therefore, there is no gap in which blowing occurs, blowing can be prevented, and high water tightness can be ensured.
Also, a valley-side contact surface in which the lower end of the downward folded piece is further folded inward and extended upward, and a mountain-side contact surface in which the upper end of the upward folded piece is further folded back inward and extended downward However, the crest- side abutment surface and the trough-side abutment surface, which are engaged with each other while being in surface contact with each other in an upwardly inclined manner from the outside to the inside, are linear surfaces in a side view. Since the contact portion is formed and contacted (surface contact), it is easy to form a space below the engagement portion to prevent capillary action, and above the upper goby during negative pressure action. moving Ri reliably and easily name, that a hardly deviates deeply engaged rather.

  In addition, when a space that opens upward is formed below the engaging portion, this space prevents capillarity, and the space functions as a drainage channel. Can flow down.

Further, when the valley-side contact surface and the mountain-side contact surface are in surface contact with each other in a substantially horizontal shape that is inclined upward , the downward side edge molding portion expands outward when the mountain-side exterior plate is pushed down. Since it is deformed in the direction, the vertical stroke (pressing height) becomes unnecessary, and only the horizontal direction (width direction) can be achieved. And after construction, since the lower end of the downward side edge molding part of a mountain side exterior board adjoins to a flat plate part, blowing of rain and a wind can be controlled. In addition, by setting the stroke only in the horizontal direction (width direction), the height of the goby, the gap, etc. can be set freely, and the design options for the exterior material can be increased.

  Further, a holding member having an upright portion having a fixing portion to the base at the lower end and a folded portion at which the upper end of the rising portion is turned outward is fixed on the base, and the upward side edge molding of the valley side exterior plate is performed. If the downward folded portion of the holding member is engaged with the inside of the folded portion of the holding member, the downward folded portion is stably positioned, and the upward folded portion of the upper exterior plate is It can be brought into stable surface contact and firmly engaged.

  Furthermore, when the heat insulating material is disposed on the back surface of the mountain-side exterior plate, it is needless to say that the heat-insulating function is provided, but in particular, the state where the mountain-side exterior plate is placed on the surface of the heat insulating material Thus, it is possible to stably dispose the holding member.

(A) Cross-sectional view showing an embodiment (first embodiment) of the exterior structure of the present invention, (b) an enlarged cross-sectional view showing a side edge molding portion and a holding member of the exterior plate used therein, (c) a mountain-side exterior It is sectional drawing which shows a board and a trough side exterior board. (A) Side sectional drawing of exterior structure of 1st Example, (b) It is sectional drawing which shows the state in which the exterior structure of 1st Example is attached adjacent to the foundation | substrate. (A) An enlarged cross-sectional view showing a state in which a space for preventing capillary action that prevents infiltration of rainwater in the exterior structure of the first embodiment is formed, (b) An enlarged cross-sectional view showing an effect of preventing water blowing, (C) It is an expanded sectional view which shows the waterproof performance at the time of a negative pressure effect | action. (A) Cross-sectional view showing the water-tightness of a conventional screw-fastened exterior structure, (b) Cross-sectional view showing the water-tightness of a conventional goat-tightened exterior structure, (c) Cross-sectional view enlarging its engaging portion It is. (A) It is sectional drawing which shows the attachment strength at the time of the negative pressure action of the exterior structure of the conventional screwing specification, (b) It is sectional drawing which shows the attachment strength at the time of the negative pressure action of the exterior structure of the conventional screwing specification. (A) Sectional drawing which shows the state by which another Example (2nd Example) of the exterior structure of this invention is attached adjacent to the foundation | substrate, (b) Downward side edge when pushing down a mountain side exterior board Sectional drawing which shows the state which is deform | transforming in the direction which a shaping | molding part expands outside, (c) Sectional drawing which shows the state in which the lower end of a downward side edge shaping | molding part is adjoining to a flat plate part, (d) Upper goby, It is an expanded sectional view of a lower goby and a holding member. (A) In 2nd Example, sectional drawing which shows that the lower end of a downward side edge shaping | molding part adjoins a flat plate part, and can suppress blowing of rain and a wind, (b) Intrusion of rainwater is prevented in 2nd Example. Cross-sectional view showing a state where a space for preventing capillary action is formed, (c) a cross-sectional view showing prevention of rain and wind blowing even under negative pressure action, (d) in the second embodiment shown in the upper stage, It is sectional drawing which shows that it will be in the state which bites into the goby shown in the lower stage when negative pressure arises.

The exterior structure of the present invention is such that the left and right side edges of the flat plate portion are bent in the same direction on the base, and the tip is folded back inward to provide a side edge molded portion to form a mountain side exterior plate and a valley side exterior plate, alternately. In the exterior structure in which crests and troughs are formed continuously by arranging, that is, the downward side edge molding part of the crest side exterior plate is folded downward on the left and right side edges of the flat plate part, and further its lower end The upper side edge molding portion of the valley side exterior plate is folded upward, and the lower side folded portion is folded back at the upper end. The upper side folded portion of the downside edge molding portion of the mountain side exterior plate (the mountain side contact surface obtained by folding the upward folded piece further inside) and the downward folded portion of the upward side edge molded portion of the valley side exterior plate ( Fold the folded piece further down Returns valley side contacting surface) and it is entirely configuration engaged by surface contact with the upward inclined from the outside to the inside.

  Here, the surface contact configuration means not only that the lower goby (downward folded portion) and the upper goby (upward folded portion) are arranged at substantially the same inclination angle in the arrangement state, but also an elastic action. Indicates a state in which they are attached in pressure contact with each other. Therefore, the lower goby (downward folded portion) is preliminarily molded so that elastic repulsion acts diagonally downward, and the upper goby (upward folded portion) is preliminarily acted diagonally upward. By molding, both can be pressed into surface contact. Further, the elasticity may be in at least one of the upper goby and the lower goby as long as the structure is in surface contact.

The exterior plate used in the present invention is used for conventional roofing called “Yamato-Maki”, and as described above, the left and right side edges of the flat plate portion are bent in the same direction, and further, the tip is inward. It is the structure which turned up and provided the side edge molding part, and may use the same shape exterior board as a mountain side exterior board and a valley side exterior board by arranging in reverse and front and back in principle. And the valley side are continuously formed, but it is not always necessary to make both coincide completely. That is, the mountain-side exterior plate and the valley-side exterior plate use the same configuration up to the detailed configuration and shape of the flat plate portion and the side edge molding portion, but use a configuration with different configurations and shapes. Also good. In addition, various backing materials may be integrally attached to the back surface, and particularly as a mountain side exterior plate, backing materials having various functions such as elasticity and airtightness are attached to the back surface. It may be attached.
As these exterior plates, metal face materials that can be elastically engaged are preferable as raw materials, but hard resin plates may also be used. Moreover, you may use the metal face material which has makeup | decoration property (designability) (it serves as a makeup | decoration material), for example, what gave the shaping | molding of flat shape or uneven | corrugated shape etc. may be sufficient as a flat plate part.

This exterior plate has a configuration in which side edge molding portions are provided on the left and right sides of the flat plate portion, and the side edge molding portion has a configuration in which the left and right side edges of the flat plate portion are folded up or down, and the tip is folded back inward. It is.
That is, the mountain-side exterior plate has a configuration in which the left and right side edges are folded down (= downward side edge molding portion) and the lower end thereof is folded back inward to form an upper goby (= upward folded portion).
Further, the valley side exterior plate has a configuration in which the left and right side edges are folded up (= upward side edge molding portion), and the upper end thereof is folded back inward to form a lower goby (= downward folded portion).

  The mountain-side exterior plate and the valley-side exterior plate are engaged with each other in surface contact, and it is desirable that a space that opens upward is formed below the engagement portion. In other words, this space is a corner space formed on the top of the mountain side exterior plate, and there is no particular limitation on the shape or size thereof, as long as it prevents capillary action. But you can.

Furthermore, the upper side of the mountain side exterior plate is provided with a mountain side contact surface that is further folded inward as an upward folded portion, and the valley side that is further folded inward as a downward folded portion is provided on the lower side of the valley side exterior plate. an abutment surface is provided.
That is, the upper goby is composed of an upward folded piece and a ridge-side contact surface as in the illustrated embodiment described later, and the lower goby has the tip of the downward folded piece as in the illustrated embodiment described later. Furthermore, it is the structure which consists of the folded-back valley side contact surface.

In this case (= when an abutment surface is provided on either or both of the upper goby and the lower goby), a configuration for surface contact can be appropriately applied.
That is, for example, when the upper goby is formed only by the upward folded piece, the upward folded piece becomes a surface contact portion, and therefore the folded piece is also affected. However, when the upper goby is formed by the upward folded piece and the mountain side contact surface, the mountain side contact surface is the part that makes surface contact, so there is almost no effect on the folded piece and the mountain side contact with the upward folded piece. Molding is easy because it only has to be molded so that the contact surface is elastically repelled in the expanding direction.

Further, in this case, it is easy to form a space where the upper part is opened below the engaging part.
That is, since the valley-side contact surface and the mountain-side contact surface are in elastic surface contact with each other, the size of the engagement portion itself is increased, so that it is easy to form a space that prevents capillary action. . In addition, since the surface contact in this case becomes a surface contact having a cushioning property, the upward movement of the upper goby during the negative pressure action is surely and easily performed.

Although not particularly limited for the angle to surface contact, as shown in the illustrated embodiment to be described later, it is in surface contact with a substantially horizontally to upstream inclined or inclined upward.
In addition, as shown in the second embodiment in the illustrated embodiment described later, when the valley-side contact surface and the mountain-side contact surface are in surface contact with each other in a substantially horizontal shape, the mountain-side exterior plate is Since the downward side edge molding portion is deformed in the direction of expanding outward when pressed down, the vertical stroke (pressing height) is not required, and only the horizontal direction (width direction) can be achieved. In addition, after construction, since the lower end of the downward side edge molding portion of the mountain side exterior plate can be in the structure close to the flat plate portion, blowing of rain and wind can be suppressed. Further, by setting the stroke only in the lateral direction (width direction), the height of the goby, the gap, etc. can be set freely, and the choice of design properties of the exterior material increases.

As described above, various backing materials may be integrally attached to the back surface of the exterior plate, but the back side having various functions such as elasticity and airtightness is particularly attached to the back surface of the mountain side exterior plate. By pasting the material, the following effects can be obtained.
By using an airtight material as the backing material, even if rainwater or the like intrudes from the engagement part due to an unexpected cause, the rainwater is opened as a drainage channel as described above. However, on this drainage channel, the backing material of the mountain side exterior plate is in contact with the valley side exterior plate, there is no gap, and the route through which the wind blows through is blocked. In this way, by blocking the path through which the wind blows, the wind does not exceed the gouge of the valley side exterior plate, and blowing is prevented.

Further, when a holding member having an upright portion having a fixing portion to the base at the lower end and a folded portion at which the upper end of the rising portion is turned outward is fixed on the base, the valley-side exterior plate By disposing the downward folded portion of the upward side edge molding portion so as to engage the inside of the folded portion of the holding member, the downward folded portion is stably positioned, and with respect to this downward folded portion, The upper folded portion of the upper exterior plate can be stably brought into surface contact and engaged.
When using the holding member in this way, since it is attached by adopting the engagement of the upper goby and the lower goby with respect to the holding member, it does not cause intrusion of rainwater from the screw holes or infiltration of rainwater due to capillary phenomenon, It has excellent workability and is an exterior structure that fully considers the strength and water tightness during negative pressure action.

About the holding member, which is disposed on the back surface side of the mountain side exterior plate, a standing part having a fixing part to the base at the lower end thereof, and a folded part obtained by folding the upper end of the standing part outward, It is the structure which has. The holding member may be a long material called a through-hanger, or may be a piece material as in the illustrated embodiment described later.
In addition, for the attachment of the exterior plate to the holding member, the lower side of the valley side exterior plate is engaged so as to be accommodated inside the folded portion of the retention member, and the upper end of the upper side of the mountain side exterior plate is It is only necessary to engage elastically so as to contact the lower end of the lower goby of the valley side exterior plate.

Further, a heat insulating material may be disposed on the back surface of the mountain-side exterior plate, a separate member may be integrally fixed with an adhesive or the like, or may be integrally attached as a backup material. . In this case, it is needless to say that the heat insulating function is provided, but in particular, the mountain-side exterior plate can be stably disposed on the holding member in a state where the mountain-side exterior plate is placed on the surface of the heat insulating material.
Such a heat insulating material also has an effect of improving the strength as a panel.
Further, the heat insulating material is not limited to a synthetic resin boat, for example, may be a wooden board, and may be a single layer or a multilayer, or may be a multilayer structure of different materials. Therefore, functional board materials such as flame retardancy and nonflammability may be used, and there is no limitation on the thickness and the like, and any heat insulating material may be used.

The effect of the present invention will be described in detail. Since the engagement of the upper goby and the lower goby is adopted, the screw itself is not used unlike the conventional screw fixing method, and the screw hole itself does not exist. Rainwater does not enter from the hole. In addition, rainwater intrusion due to capillarity does not occur as in the conventional seam fastening type, and problems such as troublesome construction do not occur.
That is, since the folded portions of the upper goby and the lower goby are brought into surface contact with each other, the exterior plates are firmly and stably attached to each other.

Further, when a space having an open top is formed below the engaging portion, rainwater does not enter due to a capillary phenomenon as in the conventional goat fastening method. In other words, the space provided below the engaging portion and opened upward prevents the capillary phenomenon, and the space functions as a drainage channel, so that rainwater that has entered may be allowed to flow down through the drainage channel.
In addition, even when negative pressure is applied, the top side of the top side of the mountain side exterior plate maintains a surface contact with the bottom side (with the capillary phenomenon prevented) and moves deeply upward to move the valley side exterior plate. Since it is in close contact with the lower goby, there is no gap in which blowing occurs, blowing can be prevented, and high water tightness can be ensured.

  In particular, in the structure in which the holding member is fixed between the mountain-side exterior plate and the valley-side exterior plate, the downward folding portion of the lower goby can stably regulate the position, and the upper exterior sheath can be regulated against the downward folding portion. It is possible to bring the top gouge on the plate into stable surface contact and engage firmly.

  In addition, as described above, when the valley-side contact surface and the mountain-side contact surface are in contact with each other in a substantially horizontal manner, the downward side edge molding portion is expanded outward when the mountain-side exterior plate is pushed down. The vertical stroke (pressing height) is not necessary, and only the horizontal direction (width direction) can be achieved. And after construction, since the lower end of the downward side edge molding part of a mountain side exterior board adjoins to a flat plate part, blowing of rain and a wind can be controlled. In addition, by setting the stroke only in the horizontal direction (width direction), the height of the goby, the gap, etc. can be set freely, and the design options for the exterior material can be increased.

  The exterior structure of the first embodiment shown in FIG. 1 is such that the left and right side edges of the flat plate portions 11 and 21 are bent in the same direction on the base 4 and the tips thereof are folded back inward to form side edge molded portions 12, 12, 22. , 22 to form a mountain side exterior plate 1 and a valley side exterior plate 2, and by alternately arranging these, a mountain portion and a valley portion are continuously formed. That is, the downward side edge molding portion 12 of the mountain side exterior plate 1 has an upward folded portion 124 in which the left and right side edges of the flat plate portion 11 are folded downward and the lower end thereof is folded inward. The two upward side edge molding portions 22 are configured to have a downward folded portion 224 in which the left and right side edges of the flat plate portion 21 are folded upward and the upper end thereof is folded inward. Then, the downward folding portion 224 of the lower side portions (upward side edge molding portions) 22 and 22 of the valley side exterior plate 2 is replaced with the upward folding portion of the upper side portions (downward side edge molding portions) 12 and 12 of the mountain side exterior plate 1. It is the structure which is made to surface-contact with 124 and is engaged.

  The mountain side exterior board 1 in this 1st Example is the structure which folded down the right-and-left side edge of the substantially flat flat plate part 11, and also folded the lower end inside, and set it as the upper goby 12. More specifically, as shown in FIG. 1 (b), the upper goby 12 includes a downward folded piece 121, an upward folded piece 122, and a mountain side contact surface 123 that is a downward piece folded inside the tip. That is, the upward folded portion 124 in the first embodiment is composed of the upward folded piece 122 and the mountain side contact surface 123. Further, a backing material 1b having substantially the same thickness is attached to the back surface side of the flat plate portion 11.

  Further, the valley side exterior plate 2 in the first embodiment has a configuration in which the left and right side edges of the substantially flat flat plate portion 21 are folded up and the upper end thereof is folded back inward to form the lower goby 22. More specifically, as shown in FIG. 1B, the lower goby 22 includes an upward folded piece 221, a downward folded piece 222, and a valley-side contact surface 223 which is an upward piece with its tip folded inward. . That is, the downward folded portion 224 in the first embodiment includes the downward folded piece 222 and the valley side contact surface 223. Further, a backing material 2b having substantially the same thickness is attached to the back side of the flat plate portion 21.

  And these crest side exterior board 1 and trough side exterior board 2 shape | mold a metal raw material in exactly the same shape except the direction which arrange | positions backing materials 1b and 2b being reverse as shown in FIG.1 (c). It is a thing. Further, as the backing materials 1b and 2b, hard urethane foam having elasticity and airtightness can be used.

In the first embodiment, a holding member 3, which is a piece material, is disposed on the back side of the mountain-side exterior plate 1.
As shown in FIG. 1C, the holding member 3 has a standing part 32 having a fixing part 31 to the base 4 at the lower end, and a folded part 33 that turns the upper end of the standing part 32 outward. It is.
The fixing portion 31 extends substantially horizontally, and a fixing tool (indicated by a two-dot chain line) is driven into the concave portion 311 from above and fixed to the base 4.
The folded portion 33 is disposed so as to face outward, and is formed so as to face the left side in almost all the drawings. In the holding member 3 arranged on the right side in FIG. The portion 33 is arranged to face the right side.

And in the exterior structure of this invention comprised from these members, about the attachment of the said exterior plates 1 and 2 to the said holding member 3, as shown in FIG. 22 is engaged so as to be accommodated inside the folded portion 33 of the holding member 3, and the upper gob 12 of the mountain side exterior plate 1 is brought into surface contact with the lower gob 22 and engaged.
In the first embodiment, as described above, the upper goby 12 is composed of the folded piece 121, the upward folded piece 122, and the mountain side contact surface 123 folded back to the inside of the tip thereof. The surface contact between the upper goby 12 and the lower goby 22 is specifically a mountain shape because it is composed of the folded piece 221, the downward folded piece 222, and the mountain-side contact surface 223 whose tip is folded inward. This is a surface contact between the contact surface 123 and the valley-shaped contact surface 223.

The base 4 is indicated by a broken line in FIG. 1 (a). However, as shown in FIG. 2 (b), the base 4 is waterproof on the surface of a field material 4c having a substantially constant thickness fixed on a frame (C-shaped steel) 4d. It is the structure which laid the sheet | seat material 4b.
Moreover, it was set as the structure which has arrange | positioned the heat insulating material 5 of the cross-sectional substantially rectangular shape between the back side of the said mountain side exterior board 1, ie, the said valley side exterior boards 2 and 2 adjacent to right and left.

The construction procedure of the exterior structure of the present invention composed of such members will be briefly described below.
First, the holding member 3 having the above configuration is fixed on the base 4 at a predetermined interval.
At the time of this step, the holding member 3 is attached in advance according to the dimensions of the valley side exterior plate 2, but the holding member 3 is disposed so that the folded portion 33 faces the valley side exterior plate 2 to be disposed, A fixing tool 3b is driven into the fixing portion 31 from above and fixed to the base 4 (frame 4d).

Next, the lower gob 22 (downward folded piece 222) of the valley side exterior plate 2 having the above-described configuration is engaged and attached to the folded portion 33 of the holding member 3 fixed on the base 4 as described above. In this step, the heat insulating material 5 may be attached to the interval between the holding members 3 and 3.
In this step, the valley side exterior plate 2 may be disposed so as to drop the valley side exterior plate 2 between the holding members 3 and 3 adjacent to each other.

Subsequently, it faces the upper side of the valley side exterior plate 2 to which the mountain side exterior plate 1 is attached, and is engaged and attached so as to be pushed downward. When the mountain-side exterior plate 1 is disposed, it may be disposed at the same time so as to embrace the heat insulating material 5, or only the heat insulating material 5 may be attached in advance as described above.
In this process, as the mountain side exterior plate 1 is lowered, the upper goby 12 and 12 (upward folded pieces 122 and 122) are elastically in contact with the lower goby 21 and 21 (downward folded pieces 222 and 222). If the upper end of the upward folded piece 122 passes the lower end of the downward folded piece 222, the mountain contact surface 123 finally comes into surface contact with the valley contact surface 223 and engages.

  In the exterior structure of the present invention constructed in this way, the upper goby 12 and 12 and the lower goby 22 and 22 are engaged, and the upper space 13 used as a space for preventing capillary action is opened. Therefore, it does not cause rainwater intrusion or rainwater intrusion due to capillary action, and it can be elastically engaged (fitted) by a simple operation of pressing the mountain-side exterior plate 1 downward from above as described above. ) And can be attached, so it is extremely excellent in workability.

  Next, effects other than the workability of the exterior structure of the present invention will be described with reference to FIG. 3, and FIG. 4 (a), FIG. 5 (a), and the related art showing the above-described conventional screw-type exterior structure. This will be described in comparison with FIG. 4B and FIG.

First, in FIG. 3A, the “surface contact” portion, which is a major feature of the exterior structure of the present invention, is hatched, and in FIG. 3A and FIG. Was cross-hatched. Moreover, in order to show the waterproof effect in FIG.3 (b), the intrusion path | route in which rain water was assumed was shown.
As shown in FIG. 3 (b), a space 13 that opens upward is formed below the engaging portions (123, 223), so that the space 13 prevents capillary action and the space 13 is a drainage channel. In the unlikely event that rainwater has entered the drainage channel (13), it can be allowed to flow down.
Further, the “surface contact” means that the mountain-side contact surface 123 formed on the upper goby 12 and the valley-side contact surface 223 formed on the lower goby 22 are brought into surface contact and engaged with each other, This is a configuration in which close engagement is never performed as in a conventional gob-clamping type.
Furthermore, the path | route in which a wind and rain blows is block | closed with the back-sticking material 1b which has the airtightness attached to the back surface of the mountain side exterior board 1. FIG. Therefore, as shown by the dotted line arrows in the figure, in order for water to enter the inside, the water must be blown over the backing material 1b and the lower goby 22 and thus has high waterproofness.

On the other hand, in the conventional screwing method and the conventional goat fastening type, the space 13 that prevents such capillary action is not formed, and the same effect is not obtained from FIGS. 4 (a) and 4 (b). it is obvious.
That is, FIG. 4 (a) shows the conventional screwing specification, but as shown by the thick line, the rainwater W that travels on the surface of the mountain side exterior plate 6 is separated from the side edge forming portion 62 of the mountain side exterior plate 6 and the valley. It will penetrate | invade from the screw hole of the fixed screw 7 driven in from the side into the overlap part with the side edge shaping | molding part 62 'of the side exterior board 6'.
FIG. 4B shows the conventional goat tightening specifications. As shown by the thick line, the rainwater W that travels on the surface of the mountain side exterior plate 8 is separated from the valley side exterior plate 8 ′, the suspension 9, and the like. It penetrates into the inside by capillarity from the seam tightening part. That is, in this specification, as shown in an enlarged view in FIG. 4C, the upward folded piece 821 provided on the upper goby 82 and the downward folded piece 831 provided on the lower goze 83 are closely engaged. Since it is made to engage with the engaging part 92 of the hanging element 9, a capillary phenomenon occurs and rain water enters the inside.
In addition, in these conventional specifications, even if the sealing material with excellent water-stopping is used to improve the water tightness of the screw hole and the seam fastening part, the intrusion of rainwater may occur due to the aging of the sealing material. .

Next, based on FIG.3 (c), the waterproof performance at the time of the negative pressure effect | action of the exterior structure of this invention is demonstrated.
As shown in FIG. 3 (c), when a negative pressure caused by a blowing wind or the like acts, a force that normally pulls up the horizontal flat plate portions 11 and 21 as indicated by white arrows in the drawing. (Negative pressure) acts, causing a phenomenon of deforming upward in a convex shape. At that time, since the lower gob 22 of the valley side exterior plate 2 has been in contact with the holding member 3 before the negative pressure action, a force (negative pressure) is applied to the upper gob 12 of the mountain side exterior plate 1, As indicated by the hatching arrow, the mountain side contact surface 123 is pulled up so as to slide upward while contacting the valley side contact surface 223 of the lower goby 22, and the upper ends of the mountain side contact surface 123 and the upward folded piece 122 are , It contacts the folded piece 221 of the valley side exterior plate 2. Further, the lower goby 22 pulled up by pressing from the lower side of the upper goby 12 presses the backing material 1b located above in a compressed manner.
Then, the upper ends of the crest side contact surface 123 and the upward folded piece 122 abut on the folded piece 221 of the valley side exterior plate 2.
As described above, when the negative pressure is applied, the upper goby 12 and the lower goby 22 are rather deeply engaged and are less likely to come off than when no negative pressure is applied.

In addition, since the mountain side exterior board 1 and the valley side exterior board 2 were formed in the same shape, the folding piece 121 of the upper goat 12 of the mountain side exterior board 1 is accompanied by the behavior of being pulled up above the upper goby 12. It contacts the lower end of the valley side contact surface 223 of the lower goby 22 and the downward folded piece 222.
In this way, when the goby 12 and 22 are in contact with the vertical wall (folding piece 221 and folding piece 121), two independent spaces 13 and 23 are generated, and water intrusion due to capillary action is prevented.
The space 13 below the engaging portions 123 and 223 is closed at the top, while the space 23 located above the engaging portions 123 and 223 is open at the bottom before the negative pressure action. When the negative pressure is applied, the lower part is closed as described above, the gap is eliminated, and blowing of wind and rain is prevented. In addition, as described above, the backing material 1b is pressed in a compressed state from the downward folded piece 222 of the lower goby 22, and therefore there is no gap for water to enter the inside, so that it is extremely waterproof.

On the other hand, FIG. 5 (a) shows a negative pressure action in the conventional screwing specification, but even if the screw 7 itself does not come off, the side edge molding portions 62, Deformation has occurred in 62 ', and in this state, a predetermined characteristic cannot be obtained.
FIG. 2B shows the negative pressure action in the conventional goby tightening specification. However, a part of the gouge tightening is released by the pulling action due to the negative pressure, and the upper goby as described above. Since the upward folded piece 821 provided in 82 and the downward folded piece 831 provided in the lower gob 83 are closely engaged with each other and engaged with the engaging portion 92 of the hanging member 9, a capillary phenomenon occurs. However, in this state, predetermined characteristics cannot be obtained.

1 (b) and 1 (c) show the exterior plates 1 and 2 and the holding member 3 used in the first embodiment, but they are not in a state during molding (= before assembly), Each member in an assembled state is shown.
Further, as described with reference to FIG. 3C, when negative pressure is applied, the crest side contact surface 123 and the upper end of the upward folded piece 122 abut against the folded piece 221 of the valley side exterior plate 2. The folded piece 121 of the mountain side exterior plate 1 is in contact with the lower end of the valley side contact surface 223 of the lower goby 22 and the downward folded piece 222, but in the normal laying state, the folded piece 221 and the upward folded part 124, the folded piece 121 and the downward folded portion 224 are not in contact with each other. That is, at least the folded piece 221 and the upward folded piece 124 are not in contact with each other, so that it is possible to prevent normal rainwater inhalation (because it is an open downward space, the sprayed rainwater does not accumulate). It flows down naturally).

  The exterior structure of the second embodiment shown in FIGS. 6A to 6D and FIGS. 7A to 7D is a surface so that the valley side contact surface 223 and the mountain side contact surface 123 are inclined upward. Unlike the contacted first embodiment, the valley-side contact surface 223 "and the mountain-side contact surface 123" are in substantially horizontal contact with each other.

The upper seam portion (downward side edge molding portion) 12 "of the mountain side exterior plate 1" in the second embodiment includes an upward folded portion 124 "whose lower end is folded inward as shown in FIG. 6 (d). The upper goby 12 ″ is composed of a downwardly folded piece 121 ″, an upwardly folded piece 122 ″, and a mountain side contact surface 123 ″ which is a downwardly folded piece inside the tip, and the upwardly folded portion 124 ″ The upper folded piece 122 "and the mountain-side contact surface 123".
In addition, the lower side plate 22 "of the valley side exterior plate 2" includes a downward folded portion 224 ", and is a valley side that is an upwardly folded piece 221", a downward folded piece 222 ", and an upward piece with its tip folded inside. It consists of a contact surface 223 ", and the downward folded portion 224" is composed of a downward folded piece 222 "and a valley side contact surface 223".

Further, as shown in FIG. 6 (d), the holding member 3 ″ in the second embodiment has an upright portion 32 ″ having a fixing portion 31 ″ to the base 4 ″ at the lower end and an upper end of the upright portion 32 ″. And a folded portion 33 "folded back to the outside. The fixing portion 31 extends in a substantially horizontal shape, and is fixed to the base 4 "by driving a fixing tool 3b" from above.
Further, the base 4 "has a structure in which a waterproof sheet material 4b" is laid on the surface of a field material having a substantially constant thickness.
In addition, a heat insulating material 5 ″ having a substantially rectangular cross section is disposed between the back surface of the mountain-side exterior plate 1 ″, that is, between the valley-side exterior plates 2 ″ and 2 ″ adjacent to the left and right.

In the exterior structure of the second embodiment, the valley-side contact surface 223 "and the mountain-side contact surface 123" are in contact with each other in a substantially horizontal manner. Therefore, as shown in FIG. When 1 "is pushed down, the downward side edge molding portion (upper seam) 12" is deformed in the direction of expanding outward.
On the other hand, in the first embodiment, a vertical stroke (pressing height) is required. However, since the gap is large, it has the advantage of being easy to construct (not easily affected by unevenness).
On the other hand, in the second embodiment, an exterior structure is obtained in which the lower end of the upper goby 12 ″ is close to the flat plate portion 21 ″ of the valley-side exterior plate 2 ″ as surrounded by the alternate long and short dash line in FIG. The vertical push-down height is not required, and the stroke can be made only in the horizontal direction (width direction).

FIGS. 7A to 7D show the effects of the second embodiment.
In the second embodiment, since an exterior structure having a design property in which the lower end of the upper goby 12 ″ is close to the flat plate portion 21 ″ of the valley side exterior plate 2 ″ is obtained, as shown by a broken line arrow in FIG. In addition, the infiltration of rain and wind can be suppressed.
FIG. 7B shows the waterproof performance in more detail, and it is the same as in the first embodiment that rainwater that has entered may be allowed to flow down by the drainage channel (space opened upward) 13 ″. In order for this water to go further inside as indicated by the dashed arrow in the figure, it must be blown over the goby (22 "etc.), so this second embodiment is It is extremely waterproof.
7 (c) and 7 (d) both show the action at the time of negative pressure indicated by the broken-line arrow, and when the upper side 12 "of the mountain side exterior board 1" is lifted, the upper folded piece 12 "is turned upward. Since the upper end of 122 ″ contacts the folded piece 221 ″ of the lower gob 22 ″, there is no gap and blowing is prevented. In addition, since the stroke is only in the horizontal direction (width direction), the height of the goby, the gap, etc. can be set freely, and there is an advantage that the choice of design properties of the exterior material increases.

1,1 "mountain side exterior plate 11, 11" flat plate part 12, 12 "downward side edge molding part (upper seam)
121, 121 "Folding piece 122, 122" Upward turning piece 123, 123 "Crest side contact surface 124, 124" Upturning portion 13, 13 "Open space 2,2" Valley side exterior plate 21, 21 " Flat part 22, 22 "Upward side edge molding part (lower seam)
221, 221 "folded piece 222, 222" downward folded piece 223, 223 "valley side contact surface 224, 224" downward folded portion 23, 23 "space opened downward 3, 3" holding member 31, 31 "fixed Part 32, 32 "Standing part 33, 33" Folded part 4 Base 5 Insulation 6,6 'Exterior plate 7 (fixed with screws) 7 Fixed screw 8, 8' Exterior plate 82 Folded piece 83 Lower goby 831 Downturned folded piece 9 Hanging element 92 Engagement part

Claims (5)

On an underlying, right and left side edges of the flat plate portion is bent in the same direction, the further its leading end mountainside outer casing provided with a side edge forming portion that is returned folded inwardly, a valley-side outer plate, are arranged alternately Is an exterior structure in which peaks and valleys are continuously formed,
And valley-side abutment surface lower end of the valley-side outer plate up side edge forming portion of the downwardly folded piece of the extended upward is returned folded further inward, upward folded piece of down side edge forming portion of the mountain side outer plate mountain side abutment surface which the upper end is extended downward are returned folded further inward of, and characterized by being engaged with surface contact with the upward inclined from entirely outside inward Exterior structure.   The exterior structure according to claim 1, wherein a space that opens upward is formed below the engaging portion.   The exterior structure according to claim 1 or 2, wherein the valley-side contact surface and the mountain-side contact surface are in surface contact with each other in a substantially horizontal shape inclined upward from the outside toward the inside.   A holding member having an upright portion having a fixing portion to the base at the lower end and a folded portion where the upper end of the upright portion is turned outward is fixed on the base, and the upward side edge molding portion of the valley side exterior plate The exterior structure according to any one of claims 1 to 3, wherein a downward folded portion is engaged with an inner side of the folded portion of the holding member.   The exterior structure according to any one of claims 1 to 4, wherein a heat insulating material is disposed on a back surface of the mountain-side exterior plate.

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