JP2018193694A - Connection structure of wall panel and connection method of wall panel - Google Patents

Abstract

To provide a connection structure of a wall panel and a connection method of the wall panel, which have good workability and good appearance after construction.SOLUTION: A frames 13, 14 extending in the longitudinal direction are attached to the back faces of left and right wall panels 11, 12 and also connected to each other, and a gap M between the panels 11, 12 is closed by a joint sealer 16. The left side frame 13 protrudes more to the right than the left side wall panel 11 and the right side wall panel 12 protrudes to the left side than the right side frame 14 and cuts out a back side corner part of both panels 11 and 12 to form a concave groove 17,18. The joint sealer 16 includes: a mounting base part 16A which is attached to the left frame 13 and has an extension part 16C extending from a right side end of the left side frame 13 to the left side face side to reach a recessed groove 17; and a seal part 16B which is integrally formed on a face side of the extension part 16C, stored in the recessed groove 17, and closes the gap M between the two wall panels 11,12 from the back side of the wall panels 11,12.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a wall panel coupling structure and a wall panel coupling method in which a gap between wall panels constituting a building is closed with a joint material.

Conventionally, as shown in FIG. 7, a coupling structure of a type in which a gap between two adjacent left and right wall panels is closed with a joint material is known (see, for example, Patent Document 1).
This is achieved by connecting the left frame 3 attached to the back side of the left wall panel 1 and the right frame 4 attached to the back side of the right wall panel 2 with a connecting tool 5 provided so as to cover the back side. In addition, the joint material 6 is inserted into the gap S <b> 1 between the left and right wall panels 1 and 2.

And, as shown in FIG. 8, such wall panels 1 and 2, after fixing the right frame 4 attached to the back side of the right wall panel 2 to the connecting tool 5, in the opening of the connecting tool 5, The left frame 3 attached to the back side of the left side wall panel 1 is fitted so as to be pushed in from the front side toward the back side, thereby connecting the left frame 3 and the right frame, and then the joint material 6 is connected from the front side. They are connected so as to be inserted into the gap S1 between the left and right wall panels 1 and 2 and the gap S2 between the left and right frames 3 and 4.
According to this, it can prevent that a dent generate | occur | produces in a panel surface, without impairing the planarity of a wall panel.

Japanese Patent No. 3922150

However, according to the invention of the conventional example, since the joint material 6 is finally inserted from the surface side of the wall panels 1 and 2, there is a problem that irregularities are easily generated on the appearance surface and the appearance is poor.
When such unevenness is generated, the workability is poor because reassembly is required to correct the unevenness.
In addition, when inserting the joint material 6 into the narrow gap S1 between the left and right wall panels 1 and 2, it is necessary to push the joint material 6 against the resistance. Therefore, the joint material 6 is divided into several times while checking the fitting condition of the joint material 6. The workability is poor.

  Accordingly, an object of the present invention is to provide a wall panel coupling structure and a wall panel coupling method that have good workability and good appearance after construction.

In order to achieve the above object, the wall panel coupling structure of the present invention has a frame (13, 14) extending in the vertical direction on the back surface of the left and right wall panels (11, 12) constituting the building. The frame (13, 14) is connected by a connecting tool (15), and is a wall panel coupling structure in which a gap (M) between the left and right wall panels (11, 12) is closed with a joint material (16),
On the left side wall panel (11) side, the left side frame (13) attached to the left side wall panel (11) projects to the right side rather than the left side wall panel (11),
On the right side wall panel (12) side, the right side wall panel (12) protrudes to the left rather than the right side frame (14) attached to the right side wall panel (12).
The left and right wall panels (11, 12) adjacent to each other on the back side corners are cut out without reaching the front side to form concave grooves (17, 18),
The joint material (16) is attached to the left frame (13), and has an extension (16C) extending from the right end of the left frame (13) to the left side of the surface and leading to the concave groove (17). The base portion (16A) and the extension portion (16C) are integrally formed on the surface side of the base portion (16A), and are accommodated in the concave grooves (17, 18). The gap (M) between the left and right wall panels (11, 12) 11, 12) having a seal portion (16 </ b> B) that is closed from the back side.

  Further, according to the present invention, the seal portion (16B) of the joint material (16) is formed in the concave groove (17, 18) so that the whole is disposed on the left side of the right end portion of the left frame (13). It is stored.

  Further, the present invention is characterized in that the concave grooves (17, 18) are formed by cutting out the back side angle of the wall panels (11, 12) in a substantially quarter circle shape.

  Further, in the present invention, the seal portion (16B) of the joint material (16) is a portion where the space extends from the gap (M) between the left and right wall panels (11, 12) to the concave groove (17, 18). It is characterized in that it elastically contacts the left and right corners (P, Q) formed at the end of the gap (M).

  Further, according to the present invention, the connecting tool (15) is configured such that the left frame (13) and the right frame (14) are fitted from the front surface side to the back surface side, and covers the side surfaces and the back surface of both frames (13, 14). It has a substantially U-shaped section (15A) for holding it in a state where it is held.

In the wall panel joining method of the present invention, the frames (13, 14) extending in the vertical direction are respectively attached to the back surfaces of the left and right wall panels (11, 12) constituting the building, and the frames (13, 14) are connected to each other. Is a connecting method of wall panels, which are connected by a connecting tool (15) and block the gap (M) between the left and right wall panels (11, 12) with a joint material (16),
On the left side wall panel (11) side, the left side frame (13) attached to the left side wall panel (11) projects to the right side rather than the left side wall panel (11),
On the right side wall panel (12) side, the right side wall panel (12) protrudes to the left rather than the right side frame (14) attached to the right side wall panel (12).
The left and right wall panels (11, 12) adjacent to each other on the back side corners are cut out without reaching the front side to form concave grooves (17, 18),
The joint material (16) is attached to the left frame (13), and has an extension (16C) extending from the right end of the left frame (13) to the left side of the surface and leading to the concave groove (17). A base part (16A) and an extension part (16C) are integrally formed on the surface side of the base part (16A) and stored in the concave groove (17). 12) having a seal portion (16B) to be closed from the back side,
The connecting tool (15) is held in a state in which the left frame (13) and the right frame (14) are fitted from the front side toward the back side and the side and back sides of both frames (13, 14) are covered. In the combined structure of wall panels having a substantially U-shaped section (15A),
After the left frame (13) attached to the left wall panel (11) is fitted to the left side of the connecting tool (15), the seal portion (16B) of the joint material (16) is inserted into the left frame (13). The mounting base (16A) of the joint material (16) is attached in a state where the left side surface of) is in elastic contact with the concave groove (17) formed in the left side wall panel (11),
The right frame (14) attached to the right wall panel (12) is inserted into the connecting tool (15) from the front surface side to the back surface side in a non-contact state with the seal portion (16B), and the seal portion The right side surface of (16B) is fitted into the right side of the connecting tool (15) in a state where the right side surface is elastically contacted with the concave groove (18) formed in the right side wall panel (12).

In the wall panel joining method of the present invention, the frames (13, 14) extending in the vertical direction are respectively attached to the back surfaces of the left and right wall panels (11, 12) constituting the building, and the frames (13, 14) are connected to each other. Is a connecting method of wall panels, which are connected by a connecting tool (15) and block the gap (M) between the left and right wall panels (11, 12) with a joint material (16),
On the left side wall panel (11) side, the left side frame (13) attached to the left side wall panel (11) projects to the right side rather than the left side wall panel (11),
On the right side wall panel (12) side, the right side wall panel (12) protrudes to the left rather than the right side frame (14) attached to the right side wall panel (12).
The left and right wall panels (11, 12) adjacent to each other on the back side corners are cut out without reaching the front side to form concave grooves (17, 18),
The joint material (16) is attached to the left frame (13), and has an extension (16C) extending from the right end of the left frame (13) to the left side of the surface and leading to the concave groove (17). A base part (16A) and an extension part (16C) are integrally formed on the surface side of the base part (16A) and stored in the concave groove (17). 12) having a seal portion (16B) to be closed from the back side,
The connecting tool (15) is held in a state in which the left frame (13) and the right frame (14) are fitted from the front side toward the back side and the side and back sides of both frames (13, 14) are covered. In the combined structure of wall panels having a substantially U-shaped section (15A),
In the left frame (13) attached to the left wall panel (11), the left surface of the seal portion (16B) of the joint material (16) is formed into a concave groove (17 formed in the left wall panel (11). ) In a state of being elastically contacted with the joint material (16), after fitting the integrated body to which the attachment base (16A) is attached to the left side of the connection tool (15),
The right frame (14) attached to the right wall panel (12) is inserted into the connecting tool (15) from the front surface side to the back surface side in a non-contact state with the seal portion (16B), and the seal portion The right side surface of (16B) is fitted into the right side of the connecting tool (15) in a state where the right side surface is elastically contacted with the concave groove (18) formed in the right side wall panel (12).

  Note that symbols in parentheses indicate corresponding elements or corresponding matters described in the drawings and modes for carrying out the invention described later.

  According to the present invention, the seal portion of the joint material is housed in the recessed groove formed in the left and right wall panels, closes the gap between the left and right wall panels from the back side, and the joint material itself is exposed on the front side of the left and right wall panels. Because it does not do, appearance is good. Note that the seal portion may be hollow or solid.

Further, the seal portion of the joint material is integrally formed on the surface side of the joint portion of the joint material, and the extension portion extends from the right end portion of the left frame to the left side of the surface side and reaches the concave groove. Therefore, the seal portion is provided at a position eccentric to the left side from the middle between the left and right frames.
If the seal part of the joint material is located in the middle of the left and right frames, after fitting the left frame with the joint material attached to the connection tool, the right frame attached to the right panel is then fitted into the connection tool. Since the right frame is in contact with the seal portion, it cannot be easily fitted, but in the present invention, since the seal portion is provided at a position eccentric to the left side, after the left frame is fitted into the connecting tool, it is attached to the right panel. The attached right frame can be easily fitted into the connecting tool.

  In particular, when the entire seal portion of the joint material is stored in the concave groove so as to be disposed on the left side of the right end portion of the left frame, the right frame is used as the seal portion when the right frame is fitted into the connecting tool. Since there is no contact at all, the right-side frame can be easily fitted, and workability is improved.

  In addition, the seal part of the joint material locally contacts the left and right corners formed at the end of the gap at the part where the space extends from the gap between the left and right wall panels to the concave groove. Compared with the case where the surface is simply elastically contacted with the surface, the stress applied to the seal portion is concentrated and an excellent sealing function is exhibited. Moreover, these corner | angular parts can also be used for the positioning at the time of sealing part installation.

It is a perspective view which shows the principal part of the connection structure of the wall panel which concerns on embodiment of this invention. It is sectional drawing which shows the principal part of the coupling structure of the wall panel which concerns on embodiment of this invention. It is sectional drawing which shows the coupling | bonding method of the wall panel shown in FIG. It is sectional drawing which shows the principal part of the coupling | bonding structure of another wall panel which concerns on embodiment of this invention. It is an expanded sectional view which shows the state in which the seal part of the attachment base shown in FIG. 1 contacted the wall panel. It is sectional drawing which shows the coupling | bonding method of a wall panel in case not decentering the position of the seal part of a joint material. It is a top view which shows the principal part of the connection structure of the wall panel which concerns on a prior art example. It is a top view which shows the coupling | bonding method of the wall panel shown in FIG.

With reference to FIG.1 and FIG.2, the coupling | bonding structure of the wall panel which concerns on embodiment of this invention is demonstrated.
In this wall panel coupling structure, frames 13 and 14 extending in the vertical direction are respectively attached to the back surfaces of the left and right wall panels 11 and 12 constituting the building, and the left frame 13 and the right frame 14 are connected to each other by a connecting tool 15. It is connected. The gap M between the left and right wall panels 11 and 12 is closed with a joint material 16.
In addition, the wall panels 11 and 12 should just be a wall which partitions the space in a building, and may be an inner wall or an outer wall. In addition, here, one of the adjacent wall panels 11 and 12 is divided into a left side and a right side when viewed from the front side with the left side wall panel 11 and the other side. Since the right side is the right side and the left side when viewed from below the plane, the right and left sides are also included.

Grooves 17 and 18 are formed in the corners on the back side of the left and right wall panels 11 and 12 adjacent to each other by cutting out without reaching the front surface side of the left and right wall panels 11 and 12.
More specifically, the concave grooves 17 and 18 are formed by notching the back side angle of the wall panels 11 and 12 into a substantially quarter circle shape (a shape obtained by dividing a circle into four equal parts). The size of the quadrant is a distance obtained by halving the thickness (plate thickness in the front and back direction) of the left and right wall panels 11 and 12 as a radius.

  The left and right frames 13 and 14 have a rectangular tube shape and extend vertically in a bar shape. Further, concave portions 13 a and 14 a are formed on the outer side surfaces of the left and right frames 13 and 14, that is, on the left side surface of the left frame 13 and the right side surface of the right frame 14. Opposing side surfaces, that is, the right side surface of the left frame 13 and the left side surface of the right frame 14 are flat surfaces.

The connection tool 15 has a substantially U-shaped section 15 </ b> A that holds the left and right frames 13, 14 in a state of covering the side and back surfaces. At both ends of the substantially U-shaped section 15A, ridges 15Aa and 15Ab projecting inward are formed, and the left and right frames 13, 14 are formed from the openings of the approximately U-shaped section 15A. When fitted from the front surface side toward the back surface side, both ends of the substantially U-shaped section 15A are pushed outward by elasticity, and the protrusion 15Aa becomes the recess 13a and the protrusion 15Ab becomes the recess 14a. It is inserted into and locked.
Further, on the back surface side of the connecting tool 15, a projecting portion 15 </ b> B that projects further toward the back surface side and stores the head of the screw 19 is provided. Holes are formed in the overhanging portion 15B at predetermined intervals in the longitudinal direction, and screws 19 are inserted into the holes from the surface side. And it fixes by screwing with the screw | thread 19 with respect to the housing arrange | positioned further on the back surface side rather than the connection tool 15. FIG. In addition, although the cross-sectional substantially U-shaped part 15A and the overhang | projection part 15B are comprised integrally in series, they can also be comprised separately.

The joint material 16 includes an attachment base portion 16A and a seal portion 16B.
The attachment base portion 16 </ b> A of the joint material 16 extends substantially in an L shape, and one end surface side is fixed to the right side surface of the left frame 13 via the clip C. A hole for press-fitting the clip C at a predetermined interval is formed on the right side surface of the left frame 13. One end surface of the mounting base portion 16A is parallel to the right side surface of the left frame 13 and the surfaces are in contact with each other, and the mounting base portion 16A is fixed to the left frame 13.
On the other hand, the other end surface side of the attachment base portion 16A has an extension portion 16C extending from the right end portion of the left frame 13 to the left side of the front surface and extending to the concave groove 17 when the attachment base portion 16A is attached to the left frame 13. It has become.

The mounting base 16A can be fixed to the left frame 13 by using a double-sided tape T instead of the clip C or together with the clip C.
The material of the attachment base portion 16A of the joint material 16 is preferably fixed to the left frame 13 in a stable state, and the material of the seal portion 16B is preferably one that improves the sealing function. Here, the mounting base portion 16A is made of EPDM solid rubber, and the seal portion 16B is made of EPDM sponge rubber. The material of the joint material 16 is EPDM as described above, but is preferably made of resin or rubber. However, it is not limited to these materials.

The seal portion 16B of the joint material 16 has a hollow shape with a circular outer shell having a cross-sectional shape, is integrally formed on the surface side of the extension portion 16C constituting the mounting base portion 16A, and is formed in the groove 17 formed in the left side wall panel 11. It is designed to be stored in.
When the left and right frames 13, 14 are connected by the connecting tool 15, the seal portion 16 </ b> B closes the gap M between the left and right wall panels 11, 12 from the back side of both wall panels 11, 12.

As shown in FIG. 2, on the left side wall panel 11 side, the left side frame 13 attached to the left side wall panel 11 protrudes to the right side by a distance L from the left side wall panel 11. The left frame 13 is attached to the wall panel 11.
On the other hand, on the right side wall panel 12 side, the right side wall panel 12 protrudes to the left side by a distance L from the right side frame 14 attached to the right side wall panel 12 so that the right side wall panel 12 protrudes to the left side. On the other hand, the right frame 14 is attached.

  This distance L is such that the seal portion 16B does not protrude from the right side surface of the left frame 13 to the right side when the seal portion 16B of the mounting base portion 16 is accommodated in the concave groove 17 formed in the left side wall panel 11. Is set. That is, the entire seal portion 16B is accommodated in the concave grooves 17 and 18 so as to be disposed on the left side of the right side surface of the left frame 13.

  Here, the distance L is set so that the entire seal portion 16B is disposed on the left side of the right side surface of the left frame 13, but the joint material 16 attached to the left frame 13 is the entire seal portion 16B. The distance L may be set so as to be arranged on the left side of the right side surface of the mounting base portion 16 </ b> A, and further on the left side of the right side surface of the head of the clip C that fixes the joint material 16 to the left frame 13. The distance L can also be set so that the entire seal portion 16B is disposed.

In such a wall panel coupling structure, as a method of coupling the wall panels 11 and 12, first, as shown in FIG. 3A, the left frame 13 attached to the left wall panel 11 is attached to the coupling tool 15. After fitting on the left side, the mounting base portion 16A of the joint material 16 is placed on the left frame 13 with the left surface of the seal portion 16B of the joint material 16 elastically contacting the concave groove 17 formed in the left wall panel 11. Install. The protrusion 15 </ b> Aa of the connection tool 15 is locked to a recess 13 a formed on the left side surface of the left frame 13.
As a result, the left surface of the seal portion 16B of the joint material 16 is locally brought into elastic contact with the corner portion P where the space extends from the right side surface of the left wall panel 11 to the concave groove 17.

Next, as shown in FIG. 3 (b), the right frame 14 attached to the right side wall panel 12 is inserted straight into the connecting tool 15 from the front side to the back side, and the right side surface of the seal portion 16B is The elastic member is fitted into the right side of the connecting tool 15 in a state of being elastically contacted with the concave groove 18 formed in the right side wall panel 12.
At this time, the seal portion 16B is disposed not in the middle of the left and right frames 13 and 14, but in a position eccentric to the left side, so that the seal portion 16B does not protrude from the right side surface of the left frame 13 to the right side. When the right frame 14 attached to the right wall panel 12 is inserted into the connecting tool 15, the right frame 14 is prevented from contacting the seal portion 16B.
Therefore, the right and left wall panels 11 and 12 can be easily coupled, and the seal portion 16B is not damaged.

Further, when the right frame 14 comes into contact with the protrusion 15Ab of the connecting tool 15, the protrusion 15Ab expands outward (on the right side) by elasticity and is positioned at a position facing the recess 14a formed on the right side surface of the right frame 14. Then, the protrusion 15Ab is pushed back by elasticity and is fitted into the recess 14a to be locked. As shown in FIG. 2, the right side frame 14 is fitted into the connecting tool 15 while the left side surface of the right side frame 14 is in contact with the head of the clip C fixed to the left side frame 13.
As a result, the right surface of the seal portion 16B of the joint material 16 is locally brought into elastic contact with the corner portion Q of the portion where the space extends from the left side surface of the right wall panel 12 to the concave grooves 18.

  When the double-sided tape T is used instead of the clip C, as shown in FIG. 4, the left side surface of the right frame 14 is in contact with the mounting base portion 16 </ b> A of the joint material 16 fixed to the left frame 13. Thus, the right frame 14 is fitted into the connecting tool 15.

When the left and right wall panels 11 and 12 are joined, the seal portion 16B of the joint material 16 is accommodated in the recessed grooves 17 and 18, and the gap M between the left and right wall panels 11 and 12 is set between the left and right wall panels 11 and 12. It is designed to close from the back side.
According to this, since the joint material 16 itself is not exposed on the surface side of the left and right wall panels 11 and 12, the appearance is good.
Further, as shown in FIG. 5, the seal portion 16 </ b> B of the joint material 16 is formed at the end of the gap M at a portion where the space extends from the gap M between the left and right wall panels 11, 12 to the concave grooves 17, 18. Since the left and right corner portions P and Q are locally elastically contacted, the stress applied to the seal portion 16B is concentrated compared to the case where the seal portion 16B is simply elastically contacted to the surface, and an excellent sealing function is exhibited. The The corner portions P and Q can also be used for positioning when the seal portion 16B is installed.

  Here, in order to compare with the case where the position of the seal portion 16B of the joint material 16 is eccentric as in the invention of the present embodiment (FIGS. 1 to 4), the position of the seal portion 16B of the joint material 16 in FIG. The case where the seal portion 16B is positioned in the middle of the left and right frames 13, 14 is shown.

  As shown in FIG. 6, when the seal portion 16B is located in the middle of the left and right frames 13, 14, the seal portion 16B protrudes to the right side of the right side surface of the left frame 13, so that the right frame Although there is a problem that the right frame 14 cannot contact and easily fit into the seal portion 16B when the connector 14 is inserted into the connecting tool 15, the seal portion 16B does not protrude rightward from the right side surface of the left frame 13. Since the right frame 14 does not interfere with the seal portion 16B when fitted, it can be easily fitted. Further, the seal portion 16B is not damaged when the right frame 14 is fitted.

In the present embodiment, the rear surface side angles of the wall panels 11 and 12 are cut out in a substantially quarter circle shape to form the concave grooves 17 and 18. However, the seal portion 16B may be stored in an eccentric state. The notch shape may be another shape.
Further, the shape of the connection tool 15 is not particularly limited.

  Further, at the time of coupling, in this embodiment, the left frame 13 attached to the left wall panel 11 is fitted to the left side of the connecting tool 15 and then the joint material 16 is attached to the left frame 13. An integrated object with the joint material 16 attached to the left frame 13 attached to the wall panel 11 may be fitted to the left side of the connection tool 15.

Further, in this embodiment, the right frame 14 fixed to the right side wall panel 12 is attached to the connecting tool 15 on the surface by decentering the seal portion 16B to the left side so as not to protrude from the right side surface of the left frame 13 to the right side. Although the right frame 14 can be smoothly constructed so that it does not interfere with the seal portion 16B at the time of fitting from the side, the seal portion 16B is positioned to the left of the middle of the frames 13 and 14 even slightly. Even if the right frame 14 is slightly contacted when fitted, the right frame 14 can be easily fitted compared to the case where the right frame 14 is positioned in the middle of both frames 13 and 14. .
Further, in the present embodiment, the right frame 13 protrudes to the right by a distance L from the left wall panel 11, and the right wall panel 12 protrudes from the right frame 14 to the left by the same distance L. The right frame 14 does not interfere with the seal portion 16B at all, or even if there is some interference, the fitting is not hindered. However, if the interference does not occur or the interference can be reduced, the protruding amount of the right frame 13 with respect to the left wall panel 11 And the protrusion amount of the right side wall panel 12 with respect to the right side frame 14 may be set to different distances.

  Further, in this embodiment, a hollow shape is used as the seal portion 16B, but a solid shape may be used as long as it has sufficient flexibility and excellent sealing performance.

DESCRIPTION OF SYMBOLS 1 Left side wall panel 2 Right side wall panel 3 Left side frame 4 Right side frame 5 Connection tool 6 Joint material 11 Left side wall panel 12 Right side wall panel 13 Left side frame 13a Recess 14 Right frame 14a Recess 15 Connection tool 15A Cross-sectional substantially U-shaped part 15Aa protrusion Ridge 15Ab ridge 15B overhang 16 joint material 16A mounting base 16B seal 16C extension 17 groove 18 groove 19 screw C clip M gap P corner Q corner S1 gap S2 gap T double-sided tape

Claims (7)

A frame panel connecting structure in which a frame extending in the vertical direction is attached to the back surface of the left and right wall panels constituting the building and the frames are connected to each other by a connecting tool, and a gap between the left and right wall panels is closed with a joint material. And
On the left wall panel side, the left frame attached to the left wall panel protrudes to the right rather than the left wall panel,
On the right wall panel side, the right wall panel protrudes to the left rather than the right frame attached to the right wall panel,
The left and right wall panels adjacent to each other on the back side corners are cut out without reaching the front side to form a concave groove,
The joint material is attached to the left frame, and has an attachment base having an extension extending from the right end of the left frame to the left side of the surface and extending to the concave groove, and is integrally formed on the surface side of the extension. A wall panel coupling structure comprising a seal portion housed in a groove and closing a gap between the left and right wall panels from the back side of the wall panel.   The wall panel coupling structure according to claim 1, wherein the seal portion of the joint material is housed in the concave groove so that the entire seal portion is disposed on the left side of the right end portion of the left frame. .   3. The wall panel coupling structure according to claim 1, wherein the concave groove is formed by cutting a back side angle of the wall panel into a substantially quadrant shape. 4.   The seal portion of the joint material locally contacts the left and right corners formed at the end of the gap at a portion where the space extends from the gap between the left and right wall panels to the concave groove. The wall panel coupling structure according to claim 3.   The connecting tool has a substantially U-shaped section in which the left frame and the right frame are fitted from the front surface side to the back surface side and are held in a state of covering the side surfaces and the back surface of both frames. Item 5. The wall panel coupling structure according to any one of Items 1 to 4. This is a method of joining wall panels in which a frame extending in the vertical direction is attached to the back surfaces of the left and right wall panels constituting the building and the frames are connected to each other by a connecting tool, and a gap between the left and right wall panels is closed with joint material. And
On the left wall panel side, the left frame attached to the left wall panel protrudes to the right rather than the left wall panel,
On the right wall panel side, the right wall panel protrudes to the left rather than the right frame attached to the right wall panel,
The left and right wall panels adjacent to each other on the back side corners are cut out without reaching the front side to form a concave groove,
The joint material is attached to the left frame, and has an attachment base having an extension extending from the right end of the left frame to the left side of the surface and extending to the concave groove, and is integrally formed on the surface side of the extension. A seal portion that is housed in a groove and closes a gap between the left and right wall panels from the back side of the wall panel;
The connecting tool has a substantially U-shaped cross section structure in which the left frame and the right frame are fitted from the front side to the back side and are held in a state of covering the side and back sides of both frames. In
After the left frame attached to the left wall panel is fitted to the left side of the coupling tool, the left surface of the seal portion of the joint material is elastically projected into the concave groove formed in the left wall panel. In the state of contact, attach the mounting base of the joint material,
The right frame attached to the right side wall panel is inserted into the connecting tool from the front side to the back side in a non-contact state with the seal part, and the right side surface of the seal part is formed on the right side wall panel. A wall panel coupling method, wherein the wall panel is fitted into the right side of the coupling tool while being elastically contacted with the concave groove. This is a method of joining wall panels in which a frame extending in the vertical direction is attached to the back surfaces of the left and right wall panels constituting the building and the frames are connected to each other by a connecting tool, and a gap between the left and right wall panels is closed with joint material. And
On the left wall panel side, the left frame attached to the left wall panel protrudes to the right rather than the left wall panel,
On the right wall panel side, the right wall panel protrudes to the left rather than the right frame attached to the right wall panel,
The left and right wall panels adjacent to each other on the back side corners are cut out without reaching the front side to form a concave groove,
The joint material is attached to the left frame, and has an attachment base having an extension extending from the right end of the left frame to the left side of the surface and extending to the concave groove, and is integrally formed on the surface side of the extension. A seal portion that is housed in a groove and closes a gap between the left and right wall panels from the back side of the wall panel;
The connecting tool has a substantially U-shaped cross section structure in which the left frame and the right frame are fitted from the front side to the back side and are held in a state of covering the side and back sides of both frames. In
The joint base of the joint material is attached to the left frame attached to the left wall panel in a state where the left surface of the seal part of the joint material is elastically contacted with the concave groove formed in the left wall panel. After fitting the one piece to the left side of the connecting tool,
The right frame attached to the right side wall panel is inserted into the connecting tool from the front side to the back side in a non-contact state with the seal part, and the right side surface of the seal part is formed on the right side wall panel. A wall panel coupling method, wherein the wall panel is fitted into the right side of the coupling tool while being elastically contacted with the concave groove.