JP2017008530A - Joining tool of building exterior wall, joining structure of building exterior wall and joining method of building exterior wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a joining tool that can be adapted to a sealingless method, facilitates construction and constructs a building exterior wall superior in water-stopping properties and visual quality.SOLUTION: A joining tool 1 of a building exterior wall of the present invention is configured by including: a conduit wall 5 used for outer wall construction of a building using a siding board 2, and disposed at least in an incoming state of the top part 5a to a receiving recess 4 formed inside a butt section 3 of the siding board 2; two pieces of impervious wall 6 L, 6R laterally disposed across an appropriate interval W across the conduit wall 5; and a mounting seat plate 10 mounted to an intermediate member configured by an auxiliary skeleton 8 or a fixing bracket 9 for supporting each of base ends 5b, 6b of the conduit wall 5 and the two pieces of impervious wall 6 L, 6R, and disposed between a portion of a building structure skeleton 7 or the siding board 2 and a building structure skeleton 7. Also, the conduit wall 5 is wrapped with a sponge material 23 having water absorbing properties, and used in a coated state.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a joint of a building outer wall that can be used in a so-called sealing-less method for joining siding boards used as an outer wall material of a building without a sealing material, a joint structure of a building outer wall provided with the joint, and the joint structure The present invention relates to a method for joining outer walls of a building, which is executed when building a building.

When performing exterior wall construction of a building or the like, a siding board as disclosed in Patent Document 1 below is widely used. Various types of siding boards are available in various designs, textures, and colors. In addition to flat siding boards used for exterior wall surfaces of building structures, the corners and corners of building structures are used. There is a corner siding board that is used to coat the corner including the corner.
When such a siding board is used to construct an outer wall of a building or the like, a sealing material is filled in a gap formed between adjacent siding boards and the siding boards are joined to each other as shown in Patent Document 1 below. Many such sealing methods have been conventionally performed. However, recently, attention has been paid to the ease of construction and the appearance quality of the building outer wall after construction, and the sealingless method of joining siding boards without a sealing material has become mainstream.

Further, a joining metal 103 called a “hat-type joiner” having a hat-shaped shape as shown in FIG. 10 is provided for the purpose of ensuring air permeability and positioning at the abutting portions of the siding boards 101 and 102 to be joined. It may be used (also disclosed in FIG. 8 of Patent Document 1).
This is the front side of the building structural body 108 through the fitting convex part 106 in which the vent hole 105 is formed inside the gap 104 formed between the siding boards 101 and 102 to be joined, and the wood base 107 or the like. And a mounting seat plate 109 to be attached to the wall surface portion of the metal plate. In FIG. 10, the height of the top of the joint metal 103 is lower than the height of the upper end of the gap 104 formed between the siding boards 101 and 102, and the sealing material 110 is filled into the stepped recess formed thereby. Thus, the gap formed between the siding boards 101 and 102 is filled.

Japanese Patent Laid-Open No. 11-311010

In the above-described sealingless construction method, the construction is easy and the appearance of the outer wall of the building after construction is excellent, but there is a risk of intrusion of rainwater or the like into the building. Therefore, a structure in place of the sealing material for preventing the intrusion of rainwater or the like is required. In this case, a configuration is conceivable in which a concave portion is formed inward of one butted portion of the siding board to be joined, and the above-described hat-shaped joining hardware is attached to improve the water stoppage.
However, rainwater or the like easily enters the inside of the siding board through the surface of the above-mentioned joining hardware even from a slight gap formed against the butt portion of the joined siding board. Then, rainwater or the like that has entered the inside of the siding board reaches the wood base, soaks into the building structure frame inside it, and causes great damage to the building structure frame.

  The present invention was made on the basis of such points, and the object of the present invention is that it can be applied to a sealingless construction method that is easy to construct and excellent in appearance after construction, and has high water-stopping performance without using a sealing material. An object of the present invention is to provide an inexpensive building outer wall joint obtained, a building outer wall joint structure including the joint, and a building outer wall joining method executed when the joint structure is constructed.

  In order to achieve the above object, a building outer wall joint according to claim 1 of the present invention is a building outer wall joint used for building outer wall construction using a siding board. A water guide wall disposed in a state where at least the top of the recess is formed, and two water shielding walls disposed at appropriate intervals on the left and right sides of the water guide wall. , Constituted by an auxiliary housing or a fixing bracket that supports the base end portions of the water guide wall and the two water-impervious walls and is arranged between a part of the building structure frame or between the siding board and the building structure frame And an attachment seat plate attached to the intermediate member.

  Further, a building outer wall connector according to claim 2 is the building outer wall connector according to claim 1, wherein the top of the water shielding wall abuts against the inner wall surface of the siding board in a state where the siding board is installed. Or it is arranged so as to be located in the vicinity thereof, and the interval between the right and left impermeable walls is set to be larger than the gap of the receiving recess formed in the siding board. is there.

  According to a third aspect of the present invention, there is provided a building outer wall connector according to the first or second aspect, wherein the water guiding wall, the two water shielding walls, and the mounting seat are formed on the siding board. Along the extending direction of the receiving recess, the length is substantially the same as that of the receiving recess and is made of a long member made of metal or synthetic resin having a uniform cross section.

  Further, the building outer wall connector according to claim 4 is the building outer wall connector according to any one of claims 1 to 3, wherein the mounting seat plate has a planar shape according to the shape and part of the building outer wall to be attached, It is formed in a bent shape or curved shape, and the left and right impermeable walls are positioned symmetrically in accordance with the shape and location of the outer wall of the building to be installed, the left and right impermeable positions, or the left and right impermeable walls are parallel. Or it is arrange | positioned in the suitable position which cross | intersects, It is characterized by the above-mentioned.

  Further, the building outer wall joint structure according to claim 5 of the present invention is a building outer wall joint structure used for building outer wall construction using a siding board, and has a predetermined shape and a predetermined depth inside the butted portion. The siding board in which the receiving recess is formed, the water guide wall arranged with at least the top portion entering the receiving recess, and the right and left sides of the water guide wall are arranged at an appropriate interval. Two water-impervious walls, and a supporting frame that supports a base end portion of the water-conducting wall and the two water-impervious walls and is disposed between a part of the building structure frame or the siding board and the building structure frame Or the attachment tool of the building outer wall provided with the attachment seat board attached with respect to the intermediate member comprised by fixing | fixed metal fittings, It is characterized by the above-mentioned.

  The building outer wall joint structure according to claim 6 is the building outer wall joint structure according to claim 5, wherein a water-absorbing sponge material for covering the water guide wall is attached to the water guide wall. A part of the sponge material is arranged in a state of entering the receiving recess formed in the siding board.

  Further, the building outer wall joint structure according to claim 7 is the building outer wall joint structure according to claim 5 or 6, wherein the building outer wall joint between the mounting seat and the building structural frame or the intermediate member. A moisture permeable waterproof sheet is affixed between the building structure and the building structure.

  Further, the building outer wall joint structure according to claim 8 is the building outer wall joint structure according to any one of claims 5 to 7, wherein the receiving recess formed in the siding board is along a butt surface of the siding board. It is a rectangular groove-shaped recessed part formed in this way.

  Further, the building outer wall joint structure according to claim 9 is the building outer wall joint structure according to any one of claims 5 to 7, wherein the receiving recessed portion formed in the siding board is along a butt surface of the siding board. It is a recessed part of the shape of a conical groove having a bent part in the middle.

  According to a tenth aspect of the present invention, there is provided a building outer wall joining method for building outer walls used in building outer wall construction using a siding board, wherein the building structure is located at a butting portion of the siding board to be joined. A joint installation method for attaching a joint on the outer wall of a building to an intermediate member constituted by a frame or an auxiliary frame or a fixing bracket provided between a siding board at the same position and a building structure frame, and joining the outer wall of the building The tool comprises a water guide wall in the center, two water-impervious walls on the left and right sides thereof, and a mounting seat plate that supports these base ends, and of these, a sponge material having water absorption with respect to the water guide wall The sponge material installation step of covering the water guide wall with the sponge material and covering the water guide wall with the sponge material and the top of the water guide wall covered with the sponge material The top part of the two impermeable walls arranged on the left and right sides of the water guide wall is brought into contact with the inner wall surface of the siding board sandwiching the receiving concave part. And a siding board installation step for reaching a position close to or in the vicinity thereof.

  The building outer wall joining method according to claim 11 is the building outer wall joining method according to claim 10, wherein the building outer wall joining tool is installed at a corner portion of the building outer wall using a siding board for a corner portion. In some cases, two sets of buildings, one for each of the two butted portions formed between the two siding boards for the left and right planes to be joined with the corner siding board It is characterized in that a siding board is joined by installing an outer wall joining tool.

  A building outer wall joining method according to claim 12 is the building outer wall joining method according to claim 10, wherein the building outer wall joining tool is installed at a corner portion of the building outer wall without using a siding board for a corner portion. In such a case, the mounting seat plate is bent or curved, and the corner portion is formed using a pair of building outer wall joints arranged at positions where the left and right impermeable walls intersect each other. The present invention is characterized in that two existing siding boards for a flat surface portion are joined.

And the following effects are acquired by the said means. That is, according to the outer wall connecting tool of the present invention, since a siding board having no recesses or gaps can be used in the joint, it can be used for the outer wall construction of a building by a sealing-less method of joining the siding board without a sealing material. . In addition, since a water guide wall is provided in a state where the top portion enters the receiving recess in the installed state, rainwater or the like that has entered from the abutting surface of the siding board travels along the water guide wall and blocks the water guide wall. It is guided to a bowl-shaped space defined by the water wall, the mounting seat plate, and the inner wall surface of the siding board, flows downward, and is discharged to the outside through the drain outlet at the lower end. Accordingly, rainwater or the like reaches the inner space of the siding board, but further intrusion into the building is prevented.
At this time, it is the water shielding wall that has the main role of preventing the intrusion of rainwater and the like into the building, and the rainwater led to the inner space of the siding board by the presence of the water shielding wall. Are prevented from entering the intermediate member disposed between the siding board and the building structural frame.

In addition, with the siding board installed, the top of the impermeable wall is placed in contact with or near the inner wall of the siding board, and the distance between the left and right impermeable walls is larger than the gap between the receiving recesses. When set to be large, rainwater or the like that has entered from the siding surface of the siding board is reliably guided to the bowl-shaped space, so that it is effective for rainwater or the like to enter the intermediate member side. Is prevented.
In addition, when the building outer wall connector is constituted by a long member having a uniform cross section having the same length as that of the receiving recess along the extending direction of the receiving recess, it is introduced into the bowl-shaped space. The rainwater or the like that has been leaked is reliably guided to the drain outlet and discharged to the outside without leaking to the outside during the flow. Moreover, when the connector of the building outer wall is made of metal, the mechanical strength is increased and the durability is improved. On the other hand, if the building outer wall connector is made of synthetic resin, it is possible to provide a cheap and lightweight building outer wall connector, and it is also possible to form a complex building outer wall connector become.

  In addition, the shape of the building outer wall where the mounting seats for the joints on the outer wall of the building are formed into a flat shape, a bent shape, or a curved shape according to the shape and location of the outer wall of the building to be attached, and the positions of the right and left impermeable walls are attached. If it is arranged in a symmetric position, asymmetrical position, or an appropriate position where the left and right impermeable walls are parallel or intersect with each other, it can correspond to the building outer wall of various shapes and parts It will be possible to provide joints for building exterior walls.

Further, according to the joint structure of the building outer wall of the present invention, a receiving concave portion having a predetermined shape and a predetermined depth inside the abutting portion of the siding board is formed, and at least the top portion of the receiving concave portion enters. A water guide wall arranged at the right, two water-impervious walls arranged on the left and right sides of the water guide wall, and a mounting seat plate that supports the water guide wall and the base ends of the two water-impervious walls, Therefore, it is possible to carry out exterior wall construction of a building by a sealing-less construction method at a low cost in a short time.
In addition, a bowl-shaped space defined by the water guiding wall, the two water shielding walls, the mounting seat plate, and the inner wall surface of the siding board is formed, and the space functions as a drainage channel. Rainwater or the like that has entered the space can be reliably guided to the drain outlet and discharged to the outside without entering the building structural frame.

Further, when a sponge material having a water absorption property that covers the water guide wall is wrapped around the water guide wall, and a part of the sponge material is placed in the receiving recess, the siding board The rainwater or the like that has entered the receiving recess from the butting surface is absorbed by the capillary phenomenon of the sponge material, and is reliably discharged to the outside from the drain outlet at the lower end while being captured by the sponge material.
In addition, when a moisture-permeable waterproof sheet is pasted between the mounting seat and the building structure frame or between the intermediate member and the building structure frame, the building structure frame side such as rainwater that has entered the part Further intrusion into the building can be prevented, and the water stoppage of the joint structure of the building outer wall can be further improved. Further, the moisture-permeable waterproof sheet does not allow liquid water to pass through, but allows gas vapor (humidity) and dry air to pass through, so that air permeability inside and outside the building can be secured.

Further, when the shape of the receiving recess is formed in a rectangular groove shape formed along the abutting surface of the siding board, the receiving recess can be easily formed, and an inexpensive siding board can be provided.
In addition, when the shape of the receiving recess is formed in the shape of a piercing groove having a bent portion in the middle of being formed along the butt surface of the siding board, there is a risk of intrusion of rainwater or the like from the butt surface. Furthermore, it is possible to provide an excellent siding board with less water-stopping property.

In addition, according to the method for joining the building outer walls of the present invention, since the siding board can be joined basically by the three steps of the joining tool installing step, the sponge material installing step, and the siding board installing step, the conventional sealing is performed. The troublesome filling process of the sealing material provided in the construction method becomes unnecessary, and the workability of the outer wall construction of the building is improved. In addition, the exterior quality of the building outer wall after construction is good because it can be applied to the sealingless method, and the building outer wall has water-stopping properties due to the use of a joint for the building outer wall with a water guiding wall, a water shielding wall, and a mounting seat. improves.
In addition, when a corner siding board is used at the corner of the building outer wall, two sets of joints on the outer wall of the building are used so that the plane located on the left and right sides of the corner siding board It will also be possible to cope with joining with siding boards for departments. In addition, by using a pair of building outer wall joints in which the mounting seat plate is bent or curved and the left and right impermeable walls are arranged at positions that intersect each other, Even when the siding board for use is not used, it is possible to join the two siding boards for the planar portion arranged in a crossed state.

It is a figure which shows the 1st Embodiment of this invention, and is a perspective view which shows a part of building which applied the joining structure of the building outer wall of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the 1st Embodiment of this invention, and is sectional drawing which shows a part of building outer wall to which the joining structure of the building outer wall of this invention is applied. It is a figure which shows the 1st Embodiment of this invention, and is a plane sectional view which shows the joining structure of the building outer wall of this invention. It is a figure which shows the 1st Embodiment of this invention, and is a plane sectional view which shows the modification of the joining structure of the building outer wall of this invention. It is a figure which shows the 1st Embodiment of this invention and is a plane sectional view which shows the other modification of the junction structure of the building outer wall of this invention. It is a figure which shows the 2nd Embodiment of this invention, and is a plane sectional view which shows the joining structure of the building outer wall of this invention. It is a figure which shows the 3rd Embodiment of this invention, and is a block diagram which shows the joining method of the building outer wall of this invention. It is a figure which shows the 4th Embodiment of this invention, and is a plane sectional view which shows the aspect in the case of installing the connector of the building outer wall of this invention in the corner part of a building outer wall. It is a figure which shows the 5th Embodiment of this invention, and is a plane sectional view which shows the other aspect at the time of installing the connector of the building outer wall of this invention in the corner part of a building outer wall. It is a figure which shows a prior art example, and is a plane sectional view which shows the joining structure of the conventional building outer wall.

Hereinafter, the first embodiment shown in FIGS. 1 to 5, the second embodiment shown in FIG. 6, the third embodiment shown in FIG. 7, and the fourth embodiment shown in FIG. By taking the form and the five embodiments of the fifth embodiment shown in FIG. 9 as an example, the building outer wall joint tool of the present invention, the building outer wall joint structure provided with the joint tool, and the joint structure are constructed. The contents of the method of joining the building outer walls that will be executed at the time will be specifically described.
In the following description, taking the first embodiment as an example, a specific configuration of the building outer wall joint of the present invention, and the building outer wall joint structure of the present invention provided with the building outer wall joint and its structure The operation will be described. In the second embodiment, the structure of the joint structure of other building outer walls having a different shape of the receiving recess 3 will be described focusing on the differences from the first embodiment.

In the third embodiment, the building outer wall joining method of the present invention will be described by taking as an example the case of building the building outer wall joining structure of the first embodiment shown in FIG.
Further, in the fourth embodiment, a mode in the case where the building outer wall connector of the present invention is installed at a corner portion of the building outer wall will be described. Moreover, in 5th Embodiment, the other structure at the time of installing the connector of the building outer wall of this invention in the corner part of a building outer wall, and the specific structure of the connector of the building outer wall used for the said aspect are demonstrated. To do.

(1) 1st Embodiment (refer FIGS. 1-5)
The building outer wall connector 1 according to the present invention is used for building outer wall construction using a siding board 2, and at least the receiving recess 4 formed inside the butting portion 3 of the siding board 2. The water guide wall 5 disposed with the top portion 5a inserted therein, the two water shield walls 6L and 6R disposed on the right and left sides of the water guide wall 5 at an appropriate interval W, and the water guide wall 5 Auxiliary housing 8 that supports the base end portions 5b and 6b of the two water-impervious walls 6L and 6R and is disposed between a part of the building structure housing 7 or between the siding board 2 and the building structure housing 7. Or it is fundamentally comprised by providing the attachment seat board 10 attached with respect to the intermediate member comprised by thru | or the fixture 9. In addition, in FIG. 3, the attachment means, such as a normal nail and a screw, is used for the attachment of the intermediate member etc. comprised by the siding board 2, the building structure housing 7, and the auxiliary housing 8, but here, Description is omitted.
Moreover, the building outer wall joint structure 11 of the present invention is also used for building outer wall construction using the siding board 2, and a receiving recess 4 having a predetermined shape and a predetermined depth is formed inside the abutting portion 3. The siding board 2 and the joint 1 of the building outer wall configured as described above are basically provided.

  The building outer wall connector 1 according to the present embodiment is used for joining two plane siding boards 2L and 2R used for the outer wall construction of the plane portion 14 of the building outer wall 13. The top portions 6a and 6a of the water shielding walls 6L and 6R are in contact with or near the inner wall surface 2a of the siding boards 2L and 2R as shown in FIG. 3 in a state where the siding boards 2L and 2R are installed. As an example, the interval W between the left and right impermeable walls 6L, 6R is set to be larger than the gap D of the receiving recess 4 formed in the right siding board 2R.

Further, the water guide wall 5, the two water shielding walls 6L and 6R, and the mounting seat plate 10 are along the extending direction Z of the receiving recess 4 formed in the siding board 2R, and are substantially the same length as the receiving recess 4. It is constituted by a long member made of metal or synthetic resin having a uniform cross section.
Further, in the present embodiment, since the siding boards 2L and 2R for the flat portion are installed on the flat portion 14 of the building outer wall 13, a flat mounting seat plate 10 is formed in accordance with the shape and part of the building outer wall 13. It is used. Further, the mounting seat plate 10 is formed with a mounting hole (not shown) for mounting the joint 1 of the building outer wall to the building structural frame 7 and the intermediate members 8 and 9 with screws 17.

In the present embodiment, the left and right impermeable walls 6L and 6R are arranged symmetrically in accordance with the shape and location of the building outer wall 13, and the water guiding wall 5 and the two impermeable walls. The water walls 6L and 6R are both parallel and are provided in a state of being raised from the mounting seat plate 10 at a right angle.
In addition, as the building structure housing 7 to which the outer wall connecting tool 1 configured as described above is attached, a stud 19 shown in FIG. 3 can be applied as an example. FIG. 3 shows a building outer wall joining structure 11 </ b> A when a siding board 2 having a thickness of 14 mm is used, and auxiliary wood bases 21 and 21 having the same size as that of the stud 19 are arranged on the left and right of the stud 19. In addition, as an example, the auxiliary casing 8 composed of a wood base is disposed as an intermediate member with respect to the auxiliary wood bases 21 and 21.
The distance between the siding board 2 and the building structure housing 7 is set according to the thickness of the auxiliary housing 8.

Further, the water guide wall 5 is provided with a water-absorbing sponge material 23 covering the water guide wall 5 so that a part of the sponge material 23 is attached to the siding board 2R as shown in FIG. It arrange | positions in the state which entered into the said receiving recessed part 4 currently formed.
As the sponge material 23, various materials that can exhibit good water absorption due to capillary action can be applied, and as an example, PVA sponge, PU sponge, or the like can be applied. Moreover, the thing using the water absorbing material of another material may be used.
Further, when the sponge material 23 is provided on the water guide wall 5, a material provided with the sponge material 23 on the water guide wall 5 in advance may be prepared. As will be described later, the sponge material 23 is used when the connector 1 is attached. May be installed.
Further, it is possible to adopt a configuration in which the sponge material 23 is not provided on the water guide wall 5, and it is also conceivable that the water guide wall 5 itself is formed with folds or irregularities for inducing water using a capillary phenomenon.

Moreover, in this Embodiment, the moisture-permeable waterproof sheet 25 is stuck between the said stud 19 and the auxiliary | assistant housing | casing 8 used as an intermediate member. The moisture-permeable waterproof sheet 25 is a sheet that does not allow liquid water to pass through but allows gas vapor (humidity) or dry air to pass through.
Incidentally, as the moisture permeable waterproof sheet 25, a polyethylene non-woven sheet having a thickness of about 0.1 to 0.5 mm defined in Japanese Industrial Standard JIS A6111 is applicable as an example.

In the present embodiment, as shown in FIG. 3, the abutting surfaces 3a of the left and right siding boards 2L, 2R are formed by smooth cut surfaces perpendicular to the front or back surfaces of the siding boards 2L, 2R. As described above, the receiving concave portion 4 is formed only in the inner corner portion of the abutting portion 3 of the right siding board 2R.
In the present embodiment, the receiving recess 4 is configured by a recess having a rectangular groove shape formed along the abutting surface 3a of the siding board 2R, and the gap D of the receiving recess 4 is the sponge described above. The size is set so as to accommodate the top 5 a of the water guide wall 5 covered with the material 23.

Next, together with the operation of the building outer wall connection structure 11A according to the present embodiment configured as described above, the flow of rainwater or the like when rainwater or the like enters the building outer wall connection structure 11A will be described. The left and right siding boards 2L, 2R are joined in a state where they are abutted with almost no gap. However, rainwater or the like enters the inner space of the siding board 2 even from a slight gap formed on the abutting surface 3 a of the siding board 2.
Rainwater or the like that has entered through the gap of the butting surface 3a reaches the receiving recess 4 and absorbs water by the capillary phenomenon of the sponge material 23 from the top 5a of the water guide wall 5 covered with the sponge material 23 existing in the receiving recess 4. And led to a drainage channel 31 formed by a space defined by the water guide wall 5, the water shielding wall 6, the mounting seat 10 and the inner wall surface 2 a of the siding board 2. Is discharged to the outside.

  And in the said drainage channel 31, invasion of rain water etc. to the auxiliary frame 8 side which is an intermediate member is prevented by existence of impermeable wall 6, and between the connector 1 of the outer wall of the building, and the stud 19, Further penetration of rainwater and the like into the building structure housing 7 side is prevented by the moisture permeable waterproof sheet 25 attached between the auxiliary housing 8 and the auxiliary wood substrate 21.

In addition, the building outer wall joint 1 and the building outer wall joint structure 11 according to the present embodiment configured as described above have the following (A) first modification and (B) second There are variations of this.
(A) First modification (see FIG. 4)
The building outer wall joint structure 11B shown in FIG. 4 shows the building outer wall joint structure 11 applied when the siding board 2 having a thickness of 15, 16, 18, 21 mm is used. Specifically, a moisture-permeable waterproof sheet 25 is pasted on the surfaces of the studs 19 and the auxiliary wood substrate 21, and the auxiliary casing 8 constituted by a wood substrate that is long in the width direction X across the moisture-permeable waterproof sheet 25 is disposed. Furthermore, the structure which has arrange | positioned the two fixing metal fittings 9 with the predetermined space | interval which can accommodate the connector 1 of a building outer wall on the surface of this auxiliary | assistant housing | casing 8 is employ | adopted.

Accordingly, the distance between the siding board 2 and the building structural frame 7 is wider than the connecting structure 11A of the building outer wall shown in FIG. To the surface of the auxiliary casing 8 which is an intermediate member.
Moreover, in the modification shown in FIG. 4, the space | interval W of the impermeable walls 6L and 6R arrange | positioned on either side is made narrower than the case of the connector 1 of the building outer wall shown in FIG.

(B) Second modification (see FIG. 5)
The building outer wall joint structure 11C shown in FIG. 5 shows the building outer wall joint structure 11 applied when the siding board 2 having the thickness of 15, 16, 18, 21 mm is used, which is the same as the first modified example. . Specifically, a moisture permeable waterproof sheet 25 is attached to the surface of the auxiliary wood substrate 21, and the fixing bracket serving as an intermediate member having a thickness larger than the joint structure 11A of the building outer wall shown in FIG. 3 with the moisture permeable waterproof sheet 25 interposed therebetween. 9 is employed, and the auxiliary housing 8 that is an intermediate member provided in the building outer wall joining structure 11A shown in FIG. 3 is removed.

Accordingly, the space between the siding board 2 and the building structure 7 is wider than the joint structure 11A of the building outer wall shown in FIG. The height of the water walls 6L and 6R is higher than that of the connector 1 on the building outer wall shown in FIG.
According to the building outer wall joint 1 and the building outer wall joint structure 11 according to the present embodiment configured as described above, it is possible to cope with a sealingless construction method that is easy to construct and excellent in appearance quality after construction. It is possible to provide an inexpensive building exterior wall joint 1 that exhibits high water-stopping properties without using a material, and a building exterior wall joint structure 11 including the joint 1.

(2) Second embodiment (see FIG. 6)
Next, a specific configuration of the building outer wall joint structure 11D according to the second embodiment will be described. The building outer wall joint structure 11D according to the present embodiment has basically the same configuration as the first modification shown in FIG. 4 of the first embodiment described above, and is formed on the siding board 2. There is a difference in that the shape of the receiving recess 4 is different from that of the first modification. Therefore, the description of the same configuration as that of the first embodiment is omitted here, and only the shape of the receiving recess 4 that is different from that of the first embodiment will be described.

In other words, in the present embodiment, the receiving recess 4 formed in the siding board 2 is formed along the bent butting surface 3a of the siding board 2 and is formed by a groove-shaped recess having a bent portion 4a in the middle. It is configured.
Specifically, a concave portion 27 is provided on the front surface side and a convex portion 28 is provided on the back surface side at the end portion of the left siding board 2L on the butt portion 3 side, and the butt portion 3 of the right siding board 2R. A convex portion 29 that engages with the concave portion 27 is provided on the front surface side, and a concave portion 30 that engages with the convex portion 28 is provided on the back surface side. As shown in FIG. 6, an inverted L-shaped gap is formed between the upper surface of the convex portion 28 and the lower surface of the convex portion 29, and between the right end surface of the convex portion 28 and the inner wall surface on the right side of the concave portion 30. Is formed, and this gap portion is configured to function as the receiving recess 4.

And also by the joint structure 11D of the building outer wall according to the present embodiment configured as described above, the same operation and effect as the first embodiment can be enjoyed. Furthermore, in the present embodiment, The presence of the bent butt surface 3a of the siding board reduces the risk of rainwater or the like entering the inner space of the siding board 2 and thus further improves the water stoppage of the building outer wall 13.

(3) Third embodiment (see FIG. 7)
Next, taking the building outer wall joint structure 11A having the structure shown in FIG. 3 of the first embodiment as an example, the building outer wall joining method executed when the joint structure 11A is constructed will be described in detail. To do.
The building exterior wall joining method of the present invention is a method for joining siding boards executed when building exterior walls of buildings using the siding board 2, and joining the building exterior walls based on a sealingless construction method that does not use a sealing material. Is the method.

Specifically, the building outer wall joining method of the present invention is basically provided by including three steps of a connector installation step P2 for attaching the building outer wall connector 1, a sponge material installation step P4, and a siding board installation step P5. It is structured.
Moreover, in this Embodiment, the moisture permeable waterproof sheet | seat sticking process P1 which sticks the moisture permeable waterproof sheet 25 is provided as a pre-process of the said connector installation process P2, and it is an intermediate member as a post process of the said connector installation process P2. The method of joining the building outer walls is constituted by a total of five steps including the intermediate member installation step P3 for installing 8,9. Hereinafter, these steps will be specifically described.

(A) Moisture permeable waterproof sheet affixing step (see FIGS. 3 and 7)
The moisture permeable waterproof sheet attaching step P1 is a step of attaching the moisture permeable waterproof sheet 25 to the surface of the building structure 7.
That is, in the present embodiment, auxiliary wood bases 21L and 21R are arranged on the left and right sides of the studs 19, and the moisture permeable waterproof sheet 25 is pasted on the surfaces of the studs 19 and the left and right auxiliary wood bases 21L and 21R.

(B) Joiner installation process (see FIGS. 3 and 7)
The joining tool installation process P2 is a process of attaching the joining tool 1 on the outer wall of the building to the building structural body 7 located at the butting portion 3 of the siding boards 2L and 2R to be joined or the intermediate members 8 and 9 at the same position. is there.
That is, the mounting seat plate 10 in the building outer wall connector 1 is installed on a moisture permeable waterproof sheet 25 pasted on the surfaces of the studs 19 and the auxiliary wood substrate 21, and the building outer wall connector using screws 17 or the like. 1 is attached to the surface of the building structure 7. The attachment position of the connector 1 on the outer wall of the building is determined by positioning so that the water guide wall 5 comes to the position of the receiving recess 4 formed in the siding boards 2L and 2R to be joined.

(C) Intermediate member installation step (see FIGS. 3 and 7)
The intermediate member installation step P3 is a step of installing the auxiliary casing 8 or the fixing bracket 9 serving as an intermediate member with respect to the building structure casing 7 positioned at the abutting portion 3 of the siding boards 2L and 2R to be joined.
That is, in the present embodiment, the wood substrate that becomes the auxiliary casing 8 is attached to the surfaces of the left and right auxiliary wood substrates 21L and 21R with the moisture permeable waterproof sheet 25 and the mounting seat plate 10 interposed therebetween using screws or the like.

(D) Sponge material installation process (see FIGS. 3 and 7)
The sponge material installation process P4 is a process in which the sponge material 23 having water absorbability is applied to the water guide wall 5 of the connector 1 on the outer wall of the building, and the water guide wall 5 is wrapped around and covered with the sponge material 23.
For example, the sponge material 23 extended along the surface of the water guide wall 5 from the base end portion 5 b of the water guide wall 5 is folded back at the top portion 5 a of the water guide wall 5, and the base of the water guide wall 5 along the back surface of the water guide wall 5. It arrange | positions so that it may reach to the edge part 5b.

(E) Siding board installation process (see FIGS. 3 and 7)
In the siding board installation step P5, the top portion 5a of the water guide wall 5 covered with the sponge material 23 is pushed into the receiving recess 4 of the siding board 2, and the top portions 6a of the left and right water shielding walls 6L and 6R are received as described above. This is a step of bringing the siding board 2 across the recess 4 into contact with or close to the inner wall surface 2a.
In this case, the left and right siding boards 2L, 2R are arranged one by one on the surface of the wood base as the auxiliary casing 8 with the top 5a of the water guide wall 5 as a guide, and the screws are fixed when the mounting positions of the siding boards 2L, 2R are determined. Etc. are used to fix the siding boards 2L, 2R to the surface of the auxiliary housing 8.

  And, according to the method of joining the building outer wall of the present invention configured as described above, the troublesome filling process of the sealing material provided in the conventional sealing method becomes unnecessary, and the workability of the building outer wall work is improved. In addition, since it can cope with the sealingless method, the appearance quality of the outer wall of the building after construction is improved. Further, rain water or the like absorbed by the capillary phenomenon by the sponge material 23 is guided to a space defined by the water guide wall 5, the water shielding wall 6, the mounting seat plate 10, and the inner wall surface 2 a of the siding board 2. Since the space becomes the drainage channel 31 and is discharged to the outside from the drainage port 33 at the lower end of the drainage channel 31, the water stoppage is greatly improved.

(4) Fourth embodiment (see FIG. 8)
Next, a method for joining building outer walls according to a fourth embodiment will be described. The building exterior wall joining method according to the fourth embodiment is applied when the building exterior wall joint 1 is installed in the corner portion 15 of the building exterior wall 13 using the siding board 2C for the corner portion. Is the method.
That is, with respect to the two butted portions 3, 3 formed between the corner siding board 2C and the two plane siding boards 2L, 2R joined to the left and right, 1 The joining method of the building outer wall according to the present embodiment is configured by joining these three siding boards 2L, 2C, and 2R using the two sets of building outer wall joining tools 1 and 1 in pairs. Yes.

Specifically, in FIG. 8, the corner portion 15 of the building outer wall 13 that becomes the projecting corner 15 a is illustrated, and the first surface 20 a and the second surface 20 of the pillar 20 that are positioned at the projecting corner 15 a that becomes the building structure 7 are orthogonal to each other. The three siding boards 2L, 2C, and 2R are joined to each other by arranging two sets of building outer wall joining structures 11 having the same structure on the surface 20b. Moreover, in FIG. 8, two sets of joint structures 11B of the building outer wall of the type shown in FIG. 4 are used as an example.
Even when the building outer wall joining method according to the present embodiment configured as described above is adopted, the same operation and effect as the building outer wall joining method according to the third embodiment can be enjoyed. In addition, in the present embodiment, since the joint structure 11 of the building outer wall having the same structure as that used in the flat portion 14 of the building outer wall 13 can be used as it is, the construction becomes smooth and the construction cost can be reduced. .

(5) Fifth embodiment (see FIG. 9)
Next, a method for joining building outer walls according to a fifth embodiment will be described. The method of joining building outer walls according to the fifth embodiment is the joining of building outer walls applied when the building outer wall connector 1 is installed at the corner 15 of the building outer wall 13 that does not use the siding board 2C for the corner. Is the method.
In other words, the siding boards 2L and 2R for two plane portions intersecting each other in the corner portion 15 are used by using a dedicated building outer wall connector 1F of a different type from the building outer wall connector 1 having the above-described configuration. The joining method of the building outer wall by this Embodiment is comprised by joining.

  Specifically, FIG. 9 shows the corner 15 of the building outer wall 13 that becomes the entrance corner 15b, and only one set of the building outer wall joints 1F having the shape shown in the figure are used to intersect each other. The siding boards 2L and 2R are joined. The building outer wall connector 1F used in the present embodiment is formed in a shape in which the mounting seat plate 10 is bent in accordance with the shape of the corner portion 15 of the building outer wall 13 or a curved surface shape. The positions of the walls 6L and 6R are asymmetrical positions according to the shape of the corner portion, and the left and right impermeable walls 6L and 6R are arranged to intersect each other.

And in FIG. 9, the 1st seat board part 10a and the pillar in the position facing the auxiliary | assistant timber base | substrate 21R arrange | positioned so that the 1st surface 20a of the pillar 20 located in the corner 15b used as the building structural frame 7 may be contact | connected. 20 is provided with a mounting seat plate 10 bent at a right angle and having a second seat plate portion 10b at a position facing the auxiliary wood substrate 21L arranged so as to be in contact with the second surface 20b of the first seat plate portion 10a. A building outer wall connector 1F is shown in which the water guide wall 5 and one water shielding wall 6R are raised from the second seat plate portion 10b and the other water shielding wall 6L is raised from the second seat plate portion 10b.
Even when the building outer wall joining method according to the present embodiment configured as described above is adopted, the same operation and effect as the building outer wall joining method according to the third embodiment can be enjoyed. In addition, in the present embodiment, since it is possible to cope with the outer wall construction of various buildings having different shapes and parts of the building outer wall 13, the applicable range of the building outer wall connector 1 can be expanded.

(6) Other Embodiments The building outer wall connector 1, the building outer wall bonding structure 11, and the building outer wall bonding method of the present invention are not limited to those of the above-described five embodiments, and the gist of the description thereof. It is possible to change within.
For example, when the building outer wall connector 1 of the present invention is formed of a metal material, the water guide wall 5, the two water-impervious walls 6 </ b> L and 6 </ b> R, and the mounting seat plate are formed by bending one metal flat plate material. 10 can be integrally formed continuously.
Further, the receiving recess 4 provided inside the abutting portion 3 of the siding board 2 is not limited to being provided in the right siding board 2R as shown in FIGS. It is also possible to provide the recesses 4 on both the left and right siding boards 2L, 2R, and to form the receiving recesses 4 by combining these two recesses.

The shape of the receiving recess 4 is not limited to the two types of shapes described above, and it is possible to adopt receiving recesses 4 of various shapes such as a V-shaped groove shape and a U-shaped groove shape. Further, when the building outer wall 13 has a curved surface, the curved mounting seat 10 can be adopted. When the building outer wall 13 has a stepped portion, it is provided at the stepped portion. As the building outer wall connector 1, it is also possible to employ a mounting seat plate 10 that is bent in accordance with the stepped portion.
In addition to this, the building structural frame 7 in which the joint structure 11 of the building outer wall according to the present invention is installed is not limited to the pillars 20 provided in the above-described inter-columns 19 and corner portions 15, but a vertical frame or horizontal frame provided between them. It may be a beam or a brace.

  The building outer wall joint, the building outer wall joint structure, and the building outer wall joining method according to the present invention are the construction field in which the building outer wall construction is performed, and the manufacture of the building outer wall joint and siding board used in the outer wall construction. -It can be used in fields of use, etc., and can be used especially when it is desired to construct a building outer wall that can be applied to a sealing-less construction method, is easy to construct, has excellent water-stopping properties, and has a good appearance quality.

DESCRIPTION OF SYMBOLS 1 Outer wall connector 2 Siding board 2a Inner wall surface 3 Butting part 3a Butting surface 4 Receiving recessed part 4a Bending part 5 Water guiding wall 5a Top part 5b Base end part 6 Impermeable wall 6a Top part 6b Base end part 7 Auxiliary housing (intermediate member)
9 Fixing bracket (intermediate member)
DESCRIPTION OF SYMBOLS 10 Mounting seat board 10a 1st seat board part 10b 2nd seat board part 11 Building outer wall joining structure 13 Building outer wall 14 Plane part 15 Corner part 15a Outgoing corner 15b Incoming corner 17 Screw 19 Intermediary pillar 20 Pillar 20a First surface 20b Second Surface 21 Auxiliary wood base 23 Sponge material 25 Moisture permeable waterproof sheet 27 Concave portion 28 Convex portion 29 Convex portion 30 Concavity 31 Drainage channel 33 Drainage port W Interval D Gap Z Extension direction X Width direction P1 Moisture permeable waterproof sheet attaching step P2 Installation process P3 Intermediate member installation process P4 Sponge material installation process P5 Siding board installation process

Claims (12)

In joints for building exterior walls used in building exterior construction using siding boards,
A water guide wall disposed in a state where at least the top of the receiving concave portion formed inside the butt portion of the siding board enters,
Two water-impervious walls arranged at an appropriate interval on the right and left sides of the water guide wall;
Supporting the base end of each of the water guide wall and the two impermeable walls, a part of the building structure frame, or an auxiliary frame or fixing bracket disposed between the siding board and the building structure frame. And a mounting seat plate attached to the intermediate member. The top of the impermeable wall is arranged so as to be in contact with or in the vicinity of the inner wall surface of the siding board in a state where the siding board is installed,
The joint of the building outer wall according to claim 1, wherein a distance between the right and left impermeable walls is set to be larger than a gap between the receiving recesses formed in the siding board.   The water guiding wall, the two water shielding walls, and the mounting seat plate are made of metal or synthetic resin having a uniform cross section along the extending direction of the receiving recess formed in the siding board and substantially the same length as the receiving recess. The building outer wall jointer according to claim 1 or 2, characterized in that the long wall member is used. The mounting seat plate is formed in a planar shape, a bent shape or a curved surface shape according to the shape and part of the building outer wall to be attached,
The left and right impermeable walls should be placed in a symmetrical position, asymmetrical position, or an appropriate position where the right and left impermeable walls are parallel or intersect according to the shape and location of the building outer wall to be attached. The building outer wall connector according to any one of claims 1 to 3. In the joint structure of the building outer wall used for building outer wall construction using siding boards,
A siding board in which a receiving recess having a predetermined shape and a predetermined depth is formed inward of the butted portion;
A water guide wall that is arranged with at least a top portion thereof entering the receiving recess, two water-impervious walls that are arranged at an appropriate interval on both sides of the water guide wall, and the water guide For an intermediate member configured to support a base end portion of a wall and two water-impervious walls and to be a part of a building structure frame or an auxiliary frame or a fixing bracket disposed between the siding board and the building structure frame A building outer wall joining structure comprising: a mounting seat plate attached to the building outer wall connecting tool. A sponge material having water absorbability for covering the water guide wall is attached to the water guide wall,
6. The joint structure of building outer walls according to claim 5, wherein a part of the sponge material is disposed in a state of entering the receiving recess formed in the siding board.   6. A moisture-permeable waterproof sheet is affixed between the mounting seat plate and the building structure frame in the joint of the building outer wall, or between the intermediate member and the building structure frame. Or the joint structure of the building outer wall of 6.   The receiving recess formed in the siding board is a rectangular groove-shaped recess formed along the abutting surface of the siding board. Construction.   The receiving recess formed in the siding board is a recessed portion in the shape of a conical groove having a bent portion in the middle formed along the abutting surface of the siding board. The joint structure of the outer wall of the building. In the method of joining building outer walls used for building outer wall construction using siding boards,
A building outer wall joint to a building structural body located at the abutting part of the siding board to be joined, or an intermediate member composed of an auxiliary housing or fixing bracket provided between the siding board and the building structural body at the same position The joint installation method to attach
The building outer wall connector includes a water guide wall at the center, two water-impervious walls on the left and right sides, and a mounting seat that supports these base ends, and of these, absorbs water with respect to the water guide wall. A sponge material installation process in which a sponge material having a property is addressed, and the water guide wall is wrapped around and covered with the sponge material;
The top part of the two water-impervious walls disposed on the left and right sides of the water guide wall is inserted by pushing the top part of the water guide wall covered with the sponge material into a receiving recess formed inside the abutting part of the siding board. A siding board installation step of bringing the siding board into contact with or in the vicinity of the inner wall surface of the siding board with the receiving recess interposed therebetween.   When installing the above-mentioned building outer wall joint at the corner of the building outer wall using a corner siding board, the two left and right plane siding boards to be joined to the corner siding board The siding board is joined by installing two sets of joints on the outer wall of the building, one pair at a time for the two abutting portions formed between the siding boards. Method of building exterior walls.   When the building outer wall connector is installed in a corner of a building outer wall that does not use a corner siding board, the mounting seat plate is bent or curved, and the left and right impermeable walls are The siding board for two plane parts existing in the corner part is joined using a pair of building outer wall joints arranged at positions intersecting each other. Method of building exterior walls.

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