JP6574635B2 - Joint material - Google Patents

Description

  The present invention relates to a joint material disposed on a joint between exterior panels.

  As a construction method of an outer wall of a building, a dry construction method in which an exterior panel produced in a factory or the like is attached on site has been conventionally performed. In the usual dry construction method, when an exterior panel is attached to a building frame (column, beam, frame or wall of a building), a scaffold is built around the building, and then workers are put on the scaffold. In many cases, joint materials are inserted into joints (grooves) between panels fixed to a building frame.

  On the other hand, if an exterior panel is attached to the building frame by the wall of an adjacent building, it becomes difficult to work from the outside. In a house built in a so-called narrow land, workers cannot enter or scaffolding It may be difficult to assemble, and work may not be possible. In this case, a method of attaching joint materials in advance to the side surfaces of the exterior panel, suspending the panels from the top of the house (for example, the rooftop), and sequentially attaching them to the building frame so that the panels are adjacent to each other with the joint materials sandwiched between them. Is done. In this method, the construction of the joint material is completed simultaneously with the completion of the construction of the exterior panel. For example, Patent Document 1 discloses a gasket that is attached to a joint and includes an annular water stop.

JP 2010-13899 A (published January 21, 2010) JP 2012-144848 A (released on August 2, 2012) JP 10-252164 A (published September 22, 1998)

  However, in Patent Document 1, since the annular water stop includes a decorative part that forms the joint surface, when the joint material is attached to the joint, the annular water stop is depressed at a location where the water stop and the side surface of the outer wall panel are connected. This causes a problem that the appearance of the outer wall of the building is deteriorated. This invention is made | formed in view of said problem, Comprising: The objective is to provide the joint material which improves the external appearance of the outer wall of a building.

  In order to solve the above problems, a joint material according to one aspect of the present invention is a joint material disposed in a joint between a first exterior panel and a second exterior panel adjacent to the first exterior panel. The side surface of the second exterior panel facing the first side surface of the first exterior panel is a second side surface, and is formed on a fixed portion fixed to the first side surface and on the outdoor side of the fixed portion. The outer appearance part that hides the joint, the seal part that is formed on the side facing the second side surface of the fixing part and is pressed against the second side surface, and the first part that connects the outer appearance part and the seal part. And the first connecting portion has a structure that suppresses the displacement of the appearance portion that accompanies deformation of the seal portion caused by the seal portion being pressed against the second side surface.

  According to said structure, when a seal part is pressed and deform | transformed by the 2nd side surface, a 1st connection part suppresses the displacement of an external appearance part accompanying a deformation | transformation of a seal part. For this reason, even if the seal portion is deformed in the direction in which the appearance portion is pulled in the indoor side, the appearance portion is hardly pulled into the indoor side. As a result, it is possible to prevent a depression from occurring in a portion where the appearance portion and the second side surface are in contact with each other, and there is an effect that the appearance of the outer wall of the building is improved.

  Furthermore, in the joint material according to one aspect of the present invention, the height of the seal portion with respect to the first side surface is the outer appearance portion with reference to the first side surface in a state where the joint material is not pressed against the second side surface. It is preferable that the height is higher.

  According to said structure, when the 2nd exterior panel is attached to the housing of a building so that it may adjoin the 1st exterior panel on both sides of the joint material fixed to the 1st side surface of a 1st exterior panel, The two side surfaces first come into contact with the seal portion. Then, the seal portion is pressed against the second side surface until the distance between the second side surface and the first side surface reaches a predetermined distance. On the other hand, since the height of the appearance portion is lower than the height of the seal portion, the possibility of being pressed by the second side surface is reduced. Therefore, it is possible to prevent rainwater and the like from entering the indoor side while maintaining the appearance of the outer wall of the building.

  Furthermore, the joint material according to an aspect of the present invention further includes a second connecting portion that is formed on a side surface on the outdoor side of the fixing portion, and connects the external appearance portion and the fixing portion. It is preferable to have flexibility.

  According to said structure, after an external appearance part and a 2nd side surface contact | connect, when an external appearance part is further pressed by the 2nd side surface, the 2nd connection part is changed from the 2nd side surface to the 1st side surface by the said pressing force. The outward appearance portion can be displaced in the direction from the second side surface to the first side surface by bending the second connecting portion. Therefore, the appearance portion can be prevented from bending and the appearance of the outer wall of the building can be maintained.

  Furthermore, the joint material according to an aspect of the present invention may further include a third connection portion that connects the appearance portion and the seal portion between the first connection portion and the second connection portion. preferable. According to said structure, since the 3rd connection part is provided in addition to the 1st connection part and the 2nd connection part, it prevents that an external appearance part bends when an external appearance part is pressed by a 2nd side surface. it can. Therefore, the appearance of the outer wall of the building can be maintained.

  Furthermore, in the joint material according to one aspect of the present invention, the seal part includes first and second extension parts extending from the fixing part, and the first and second extension parts are connected to each other. A hollow structure is preferable. According to said structure, the cyclic | annular structure is contained in the cross section when a seal | sticker part is cut | disconnected by the plane perpendicular | vertical to a 1st side surface and parallel to the direction which goes to an outdoor side from an indoor side. That is, the seal part has a hollow structure. For this reason, a seal part becomes difficult to deform | transform and can improve the sealing function of a seal part. Therefore, it is possible to more reliably prevent rainwater and the like from entering the indoor side.

  Furthermore, in the joint material according to one aspect of the present invention, it is preferable that the appearance portion is inclined to the outdoor side in a state where the seal portion is not pressed against the second side surface. According to said structure, when attaching the 2nd exterior panel 41 to the housing of a building, the part which pulled in the exterior part to the indoor side a little, but the part which the exterior part inclined to the outdoor side Can be offset. Thereby, the surface on the outdoor side of the exterior portion is parallel to the surface on the outdoor side of the second exterior panel, and the appearance of the outer wall of the building is improved.

  The present invention has an effect of improving the appearance of the outer wall of a building.

(A) is sectional drawing of the joint material which concerns on one Embodiment of this invention. (B) is sectional drawing of the state by which the joint material shown to (a) was arrange | positioned in the joint. (A) is sectional drawing of the modification of the joint material which concerns on one Embodiment of this invention. (B) is sectional drawing of the state by which the joint material shown to (a) was arrange | positioned in the joint. It is sectional drawing of the joint material which concerns on another one Embodiment of this invention. (B) is sectional drawing of the state by which the joint material was arrange | positioned by the joint. (A) is a figure which shows sectional drawing before the joint material in a prior art is arrange | positioned in a joint, (b) is sectional drawing after the joint material shown in (a) is arrange | positioned in a joint. FIG. (C) is a figure which shows sectional drawing before the joint material in another prior art is arrange | positioned in a joint, (d) is after the joint material shown in (c) is arrange | positioned in a joint. It is a figure which shows sectional drawing. It is a front view which shows an example of the joint structure of a building.

[Uses of joint materials]
The joint material according to the present invention is disposed on the vertical joint or the horizontal joint of the plurality of exterior panels, and is mainly provided on the vertical joint. FIG. 5 is a front view showing an example of a joint structure of a building. As shown in FIG. 5, joint material 1 is disposed on the vertical joint M1 and the horizontal joint M2 of the plurality of exterior panels 41, 42, 43 forming the outer wall of a building such as a house to prevent intrusion of rainwater and the like. The The vertical joint M1 is a joint between the exterior panels 41 and 42 and the exterior panel 43, and the second exterior panels 41 and 42 and the first exterior panel 43 are adjacent to each other across the longitudinal joint M1. The horizontal joint M2 is a joint between the second exterior panel 41 and the second exterior panel 42, and the exterior panel 41 and the exterior panel 42 are adjacent to each other across the lateral joint M2.

  After the joint material 1 which concerns on one Embodiment of this invention is affixed on the 1st side surface 431 of the 1st exterior panel 43, the 1st exterior panel 43 is attached to the housing of a building. And the 2nd exterior panel 41 is attached to the housing of a building so that the 1st exterior panel 43 may be adjoined on both sides of the joint material 1 stuck on the 1st side surface 431. The joint material 1 is not attached to the second side surface 411, and the joint material 1 is formed on the side surface (the right side surface in FIG. 5) of the first exterior panel 43 that faces the second side surface 411. It shall be pasted.

[Configuration of joint material 1]
1A is a cross-sectional view of a joint material 1 according to an embodiment of the present invention, and FIG. 1B is a cross-sectional view of the joint material 1 disposed on the joint. As shown to (a) of FIG. 1, the joint material 1 is provided with the seal | sticker part 11, the external appearance part 12, the 1st connection part 13, the 2nd connection part 14, and the fixing | fixed part 15. FIG. The joint material 1 is used, for example, when the joint width is 11 to 14 mm, and is composed of a rubber-like elastic body such as rubber mainly composed of EPDM (ethylene / propylene diene monomer). Examples of the rubber-like elastic body include rubber materials mainly composed of natural rubber, IR (isoprene rubber), CR (chloroprene rubber), various thermoplastic elastomers, urethane, PVC, and the like.

  The fixing portion 15 is fixed to the side surface of the exterior panel by an adhesive (adhesive tape) 16. In the following description, the side surface of the exterior panel (first exterior panel) 43 to which the fixing portion 15 is fixed is referred to as a first side surface 431, and the side surface of the second exterior panel 41 facing the first side surface 431 is the second side surface. 411 (see FIG. 1B). The indoor side is the right side of the page and the outdoor side is the left side of the page.

  The seal portion 11 is formed on the side of the fixed portion 15 that faces the second side surface 411 and is pressed against the second side surface 411. That is, the seal part 11 prevents rainwater and the like from entering the indoor side by contacting the side surface of the exterior panel. The seal portion 11 protrudes from the surface of the fixing portion 15 (hereinafter, the upper surface 15a of the fixing portion 15) facing the second side surface 411. The seal portion 11 has a hollow structure and can be deformed by being pressed against the side surface of the exterior panel.

  The seal portion 11 has a hollow structure, and includes a first extension portion 11a and a second extension portion 11b that extend from the fixed portion 15, and a bridge that connects the first extension portion 11a and the second extension portion 11b. Part 11d. The 1st extension part 11a is the seal | sticker part 11 of the outdoor side, and is inclined indoors. The 2nd extension part 11b is the indoor seal part 11, and is inclined further indoors than the 1st extension part 11a. For this reason, when the seal portion 11 is pressed by the second side surface 411, the seal portion 11 is easily pulled into the indoor side. Moreover, the front-end | tip 11c of the 1st extension part 11a is given in the position most distant from the bottom face (surface to which the adhesive material 16 is given) of the fixing | fixed part 15 in the structure with which the joint material 1 is provided.

  The appearance portion 12 is formed on the outdoor side of the fixed portion 15 and hides the joint M1. The exterior portion 12 has a surface portion 12a that is colored (for example, covered with a rubber-like elastic body of the same color) that matches the exterior panel of the building. The appearance portion 12 includes an appearance main body portion 12b and an appearance fin portion 12c.

  The appearance main body portion 12b is a portion of the appearance portion 12 between a portion connected to the second connecting portion 14 and a portion connected to the first connecting portion 13, and a surface portion of the appearance main body portion 12b. 12a is a flat surface. Since the thickness H2 obtained by adding the surface portion 12a to the appearance main body portion 12b is thicker than the thickness H1 of the second connection portion 14, the appearance portion 12 is pressed in the direction from the first connection portion 13 toward the second connection portion 14. At this time, it is possible to transmit the pressing force to the second connecting portion 14 without bending. The thickness H2 obtained by adding the surface portion 12a to the appearance main body portion 12b is determined by the material of the appearance main body portion 12b and the size of the joint width.

  The appearance fin part 12c is a part of the appearance part 12 extending from the part connected to the first connecting part 13 to the appearance main body part 12b, and the appearance fin part 12c is accompanied by the surface part 12a. The outer fin portion 12c and the surface portion 12a are thinner than the thickness H2 of the outer appearance main body portion 12b and the surface portion 12a. For this reason, when the appearance part 12 is pressed in the direction from the first connection part 13 toward the second connection part 14, the appearance fin part 12c is deformed by the pressing force and further curved toward the seal part 11 side.

  The 1st connection part 13 connects the seal part 11 and the external appearance part 12, and suppresses the displacement of the external appearance part 12 accompanying the deformation | transformation of the seal part 11 by the seal part 11 being pressed by the 2nd side surface 411. Structure (bending structure). For example, the bent structure of the first connecting portion 13 may have a V-shaped cross section as shown in FIG. 1A, or the direction opposite to the V-shaped shape shown in FIG. It may be an inverted V-shape (not shown) or a cut in the first connecting portion 13. Moreover, the bending structure of the 1st connection part 13 may connect the thing with a V-shaped cross section in multiple numbers, or a cross section may be U-shaped.

  The second connecting portion 14 is formed on the side surface of the fixing portion 15 on the outdoor side, and connects the fixing portion 15 and the appearance portion 12. Since the second connecting portion 14 has a thickness H1 that is thinner than the thickness H3 of the fixed portion 15 and thinner than the thickness H2 of the appearance main body portion 12b and the surface portion 12a as described above, the second connecting portion 14 is transmitted from the appearance portion 12. By the applied pressing force, it is possible to bend in the direction from the first connecting portion 13 to the second connecting portion 14 before the appearance main body portion 12b.

[Deformation of joint material 1 before and after installation]
Below, (b) of Drawing 1 is made into an AA 'sectional view shown in Drawing 5, before the 2nd exterior panel 41 is attached to the frame of a building, and the 2nd exterior panel 41 is attached to the frame of a building The change in the shape of the joint material 1 affixed to the first exterior panel 43 will be described. As shown in FIG. 1B, the joint material 1 affixed to the first exterior panel 43 is pressed by the second side surface 411 approaching substantially parallel to the first side surface 431, thereby causing a seal portion. 11, the first connecting part 13, the appearance part 12, and the second connecting part 14 in this order. It should be noted that the second side surface 411 has a contact member 5 (gray portion) that facilitates drawing of the seal portion 11 into the indoor side by contacting the tip of the second extension portion 11b of the seal portion 11 of the joint material 1. ) May be affixed to the indoor side of the second side surface 411 of the second exterior panel 41, but a structure that does not use the contact member 5 will be described below.

  First, when the second exterior panel 41 is attached to the housing of the building so as to be adjacent to the first exterior panel 43 with the joint material 1 interposed therebetween, the second side surface 411 contacts the tip 11 c of the seal portion 11. This is because, in a state where the joint material 1 is not pressed against the second side surface, the height of the seal portion 11 with respect to the first side surface 431 is higher than the height of the appearance portion 12 with respect to the first side surface 431. . And as the 2nd side 411 approaches the 1st side 431, the seal part 11 is pressed by the 2nd side 411, and deform | transforms so that it may be drawn indoors.

  The first connecting portion 13 is deformed according to the deformation of the seal portion 11. That is, as the seal portion 11 is pulled into the indoor side, the first connecting portion 13 is pulled toward the indoor side by the seal portion 11. For example, when the cross-sectional shape of the 1st connection part 13 is V shape as shown to (a) of FIG. 1, as the seal | sticker part 11 is drawn in indoor side, the 1st connection part 13 becomes indoor side. While pulling and the angle of the V-shaped valley of the first connecting part 13 is increased, the exterior part 12 is pulled into the indoor side by the displacement of the seal part 11 when the exterior panel is attached. Accordingly, the amount of the seal portion 11 drawn into the indoor side is absorbed (adjusted) by the first connecting portion 13 and is not directly applied to the appearance portion 12. Therefore, as the seal part 11 is drawn into the indoor side, it is possible to prevent the external part 12 from being drawn too much while the external part 12 is drawn into the indoor side.

  Next, the appearance part 12 is deformed. First, the second side surface 411 is in contact with the appearance fin portion 12 c and the appearance fin portion 12 c is in close contact with the second side surface 411. Then, as the second side surface 411 approaches the first side surface 431, the appearance part 12 is pressed by the second side surface 411 in the direction from the second side surface 411 to the first side surface 431. The thickness H2 obtained by adding the surface portion 12a to the appearance main body portion 12b is a thickness that does not bend due to the pressing force from the second side surface 411 (see FIG. 1A). For this reason, the appearance main body 12b transmits the pressing force to the second connecting portion 14 without being bent by the pressing force.

  When the second side surface 411 approaches the first side surface 431 even after the appearance fin portion 12c and the second side surface 411 are in contact with each other, the second connecting portion 14 is second due to the pressing force transmitted from the appearance main body portion 12b. It bends in a direction from the side surface 411 toward the first side surface 431. In the first place, the second connecting portion 14 is separated from the first side surface 431 by the thickness of the adhesive or the adhesive tape 16 (for example, 1 mm) when the joint material 1 is attached to the first exterior panel 43. For this reason, when the force is transmitted from the appearance main body 12b, the second connecting portion 14 is deformed so as to warp in the direction from the second side 411 to the first side 431, and the appearance 12 is moved to the first side 431 side. Displace to. As a result, the second connecting portion 14 prevents the appearance portion from bending, and the second connecting portion 14 comes into contact with the first side surface 431, so that the appearance of the outer wall of the building can be maintained.

  In addition, in the construction until the appearance fin part 12c is in close contact with the second side surface 411, the second exterior panel 41 can be easily moved between the second exterior panel 41 and a building frame (for example, a beam or a column). There may be a gap for And after the appearance fin part 12c closely_contact | adheres to the 2nd side surface 411, 2nd exterior panel 41 itself is moved to an indoor side, and is attached to the building's housing (for example, beam or a pillar). By the movement of the second exterior panel 41 to the indoor side and the pulling of the seal portion 11 described above, the appearance fin portion 12c is drawn into the indoor side, and as a result, the appearance main body portion 12b is also moved. It will be pulled into the indoor side. In order to cancel this pull-in amount, it is preferable that the appearance main body 12b is tilted to the outdoor side. Thereby, the surface on the outdoor side of the exterior main body 12b is parallel to the surface on the outdoor side of the second exterior panel 41, and the appearance of the outer wall of the building is improved.

  In addition, when attaching the 2nd exterior panel 41 to the housing of a building, when the 2nd side surface 411 of the 2nd exterior panel 41 contact | abuts to the exterior fin part 12c, the exterior fin part 12c may lean toward the outdoor side. Even if it happens, the first connecting portion 13 connected to the seal portion 11 restricts the inclination of the exterior body portion 12b and the exterior fin portion 12c to the outdoor side.

  And according to said structure, since the seal | sticker part 11 is press-contacted to the 2nd side 411 including the front-end | tip 11c of the seal | sticker part 11, it becomes possible to prevent invasion of rain water etc. to the indoor side. In addition, when the appearance fin portion 12c of the appearance portion 12 is pressed against the second side surface 411, the double water stop structure of the seal portion 11 and the appearance fin portion 12c ensures that rainwater and the like enter the indoor side. It becomes possible to prevent.

  The case where the contact member 5 not used in the above description is used will be described below. The abutting member 5 is attached in advance to the indoor side of the second side surface 411 of the second exterior panel 41 with an adhesive or an adhesive tape 16 before the second exterior panel 41 is fixed to the housing of the building. . The contact member 5 has a base 51 on which the adhesive tape 16 is installed and a contact surface 511 facing the first exterior panel 43 of the base. By providing the contact member 5, the contact surface of the second exterior panel 41 with respect to the joint material 1 is the contact between the second side surface 411 and the contact member 5 protruding to the first exterior panel 43. The surface 511 is formed and a step is provided. Therefore, in the operation of fixing the second exterior panel 41 to the building frame, the first side surface of the first extension portion 11a on the outdoor side of the seal portion 11 comes into contact with the second side surface 411 before the first side surface 11c comes into contact. The contact surface 511 protruding to 431 contacts the tip of the second extending portion 11b, and the hollow seal portion 11 is inclined and pulled inward. In other words, the second extending portion 11b in a form inclined more to the indoor side than the first extending portion 11a falls down in advance. Thereby, the assembly | attachment state seen by (b) of FIG. 1 can be achieved more reliably rather than the case where the contact member 5 is not used. Therefore, even if construction variations (such as tilt variations during construction of the second side surface 411) occur during the assembly work of the second exterior panel 41, the finish is sufficiently guaranteed.

  In FIG. 1B, a lip-shaped piece 52 that protrudes from the base 51 of the contact member 5 toward the first exterior panel 43 and is curved is provided. Intrusion such as can be further prevented.

  The abutting member 5 may be provided opposite to the joint material 1 in the same range, or may not be opposed to the joint material 1 at all, and may be provided intermittently.

[Modification]
Next, a joint material 2 that is a modification of the joint material 1 will be described. The joint material 2 is different from the joint material 1 in the shapes of the seal portion 21 and the fixing portion 25. 2A is a cross-sectional view of a modified example of the joint material 1, and FIG. 2B is a cross-sectional view of the joint material 2 disposed on the joint. The appearance portion 22, the first connection portion 23, and the second connection portion 24 of the joint material 2 have the same configuration as the joint material 1.

  The fixing part 25 is different from the fixing part 15 of the joint material 1 shown in FIG. 1A in that no space is formed inside. Note that a space may be formed inside the fixed portion 25 as necessary. The seal portion 21 has a bow-shaped cross section, and has a hollow structure in which a curved portion (first extending portion 21a) and a chord-shaped portion (second extending portion 21b) are connected. The first extending portion 21 a is a portion of the seal portion 21 that is connected to the first connecting portion 23, and the second extending portion 21 b is a seal portion 21 that connects the first extending portion 21 a and the fixing portion 25. It is a part of.

  Hereinafter, FIG. 2B will be described as a cross-sectional view taken along line A-A ′ shown in FIG. 5. As illustrated in FIG. 2B, the joint material 2 attached to the first exterior panel 43 is deformed by being pressed against the second side surface 411.

  First, the first extension portion 21a of the seal portion 21 can be pressed against the second side surface 411, thereby preventing rainwater and the like from entering the indoor side. The second extending portion 21b is formed on the second side surface 411 with respect to the first extending portion 21a by the force of returning to the original shape (the shape shown in FIG. 2A) from the deformation of the seal portion 21. Apply force in the pressing direction. As a result, the first extending portion 21a can be securely adhered to the second side surface 411, and rainwater or the like can be reliably prevented from entering the indoor side. In addition, about the deformation | transformation of the 1st connection part 23, the external appearance part 22, and the 2nd connection part 24, it is as having demonstrated in FIG. In the joint material 2, the contact member 5 described in the joint material 1 may be installed on the second exterior panel 41.

[Configuration of joint material 3]
FIG. 3A is a cross-sectional view of a joint material 3 according to another embodiment of the present invention. The joint width to which the joint material 3 is applied is wider than the joint width to which the joint material 1 is applied, for example, 16 to 20 mm. For this reason, the joint material 3 is different from the joint material 1 shown in FIG. 1 in that it includes a third connecting portion 36 and a reinforcing portion 37. In addition, the external appearance part 32, the 1st connection part 33, and the 2nd connection part 34 of the joint material 3 differ only in the magnitude | size from the external appearance part 12, the 1st connection part 13, and the 2nd connection part 14 of the joint material 1, The configuration is the same. Moreover, the shape of the fixing | fixed part 35 is a shape according to the structure of the joint to arrange | position.

  The third connecting portion 36 is for preventing the appearance main body portion 32b from bending (inflating indoors / outdoors), and between the first connection portion 33 and the second connection portion 34, The seal part 31 is connected.

  The reinforcement part 37 connects the site | part of the seal part 31 (1st extension part 31a) which the 3rd connection part 36 connects, and the 2nd extension part 31b. The portion of the seal portion 31 that is located farther from the fixed portion 35 than the reinforcing portion 37 prevents intrusion of rainwater or the like indoors and has a deformable thickness. The portion 37a of the seal portion 31 on the fixed portion 35 side of the reinforcing portion 37 and the reinforcing portion 37 has a hollow structure by the first extending portion 31a, the second extending portion 31b, and the bridging portion 31d that connects them. The thickness H4 is such that the appearance portion 32 is not drawn in the direction in which the seal portion 31 is deformed. That is, even if the site | part (31a * 31b * 31c * 31d) of the seal | sticker part 31 in the position away from the fixing | fixed part 35 rather than the reinforcement part 37 deform | transforms, the reinforcement part 37 and the site | part 37a are the said site | parts. Has a thickness H4 that does not deform (for example, the same thickness as the fixed portion 35).

[Deformation of joint material 3 before and after installation]
FIG. 3B is a cross-sectional view of the joint material 3 disposed on the joint. Hereinafter, FIG. 3B will be described as a cross-sectional view taken along the line AA ′ in FIG. As illustrated in FIG. 3B, the joint material 3 attached to the first exterior panel 43 is deformed by being pressed against the second side surface 411. Note that a contact member 6 (gray portion) that contacts the seal portion 31 of the joint material 3 may be attached to the second side surface 411.

  First, when the second exterior panel 41 is attached to the housing of the building so as to be adjacent to the first exterior panel 43 with the joint material 3 interposed therebetween, the second side surface 411 contacts the tip of the seal portion 31. And as the 2nd side 411 approaches the 1st side 431, the tip of seal part 31 is pushed by the 2nd side 411, and is pulled in to the indoor side, and is in the position farther from fixed part 35 rather than reinforcement part 37. The parts of the seal part 31 (31a, 31b, 31c, 31d, hereinafter referred to as the upper part of the seal part) are deformed so as to be drawn indoors.

  On the other hand, since the reinforcement part 37 and the part 37a have a certain thickness as described above, the reinforcement part 37 and the part 37a are hardly pulled into the indoor side and are not easily deformed when the exterior panel is attached. For this reason, as for the 3rd connection part 36, a seal | sticker part upper part is few to be drawn in indoors according to a deformation | transformation. As a result, the third connecting portion 36 can more reliably prevent the appearance main body portion 32b from being bent. Moreover, the 1st connection part 33 deform | transforms according to a deformation | transformation of the seal | sticker part upper part. About the deformation | transformation of the 1st connection part 33, it is the same as that of the 1st connection part 13 of the joint material 1 shown in FIG. For this reason, it can prevent that the external appearance part 32 is drawn too much indoors as the seal | sticker part upper part is drawn indoors. In addition, about the deformation | transformation of the 2nd connection part 34, it is the same as that of the 2nd connection part 14 of the joint material 1 shown in FIG.

[Comparison with conventional technology]
4A is a diagram showing a cross-sectional view before the joint material 100 in the prior art is disposed on the joint, and FIG. 4B is a diagram after the joint material 100 is disposed on the joint. FIG. As shown to (a) of FIG. 4, the semicircle shaped joint material 100 is each affixed on the joint side surface between exterior panels so that it may oppose. When the exterior panel is attached to the housing of the building, as shown in FIG. 4B, the joint materials 100 facing each other are brought into close contact with each other to prevent intrusion of rainwater or the like indoors. Yes. However, since the joint material 100 which opposes mutually adheres, as shown to A of FIG.4 (b), when it sees from the outdoors, a line will arise along a joint and the external appearance property of the outer wall of a building will fall. End up.

  On the other hand, in the joint materials 1 to 3 according to the embodiment of the present invention, for example, as shown in FIG. For this reason, when the joint materials 1-3 are used for the joint, the appearance of the outer wall of the building is improved as compared with the joint material 100 shown in FIG.

  4C is a diagram showing a cross-sectional view before the joint material 110 according to another prior art is arranged on the joint, and FIG. 4D is a diagram showing the joint material 110 arranged on the joint. It is a figure which shows sectional drawing after being provided. The joint material 110 shown in FIG. 4C has a configuration in which the appearance portion 112 also performs a sealing function for preventing rainwater or the like from entering the indoor side. For this reason, when the exterior panel is attached to the housing of the building, as shown in FIG. 4D, the tip of the exterior portion 112 is in a state of being pulled too far into the indoor side, and the second side surface 411 contacts. A depression (hereinafter referred to as a triangular gap) B is generated in the vicinity of the site, and the appearance of the outer wall of the building is deteriorated.

  On the other hand, the joint materials 1 to 3 according to the embodiment of the present invention have, as shown in FIG. 1B, for example, the triangular gap b generated in the vicinity of the portion where the appearance portion 12 and the second side surface 411 are in contact with each other. Compared with the triangular gap B in FIG. For this reason, the external appearance property of the outer wall of a building improves.

1, 2, 3 Joint material, 11, 21, 31 Sealing part 11a, 21a, 31a First extension part, 11b, 21b, 31b Second extension part 12, 22, 32 Appearance part, 15, 25, 35 Fixed Parts 13, 23, 33 first connecting part, 14, 24, 34 second connecting part, 36 third connecting part

Claims (4)

A joint material disposed on a joint between the first exterior panel and the second exterior panel adjacent to the first exterior panel,
The side surface of the second exterior panel facing the first side surface of the first exterior panel is a second side surface,
A fixing portion fixed to the first side surface;
An exterior portion formed on the outdoor side of the fixed portion to conceal the joint;
A seal portion that is formed on the side of the fixed portion that faces the second side surface and is pressed against the second side surface;
A first connecting part for connecting the outer appearance part and the seal part ,
The first connecting portion has a structure that suppresses displacement of the appearance portion due to deformation of the seal portion caused by the seal portion being pressed against the second side surface .
The joint material characterized in that, in a state where the seal portion is not pressed against the second side surface, the appearance portion is inclined to the outdoor side . A joint material disposed on a joint between the first exterior panel and the second exterior panel adjacent to the first exterior panel,
The side surface of the second exterior panel facing the first side surface of the first exterior panel is a second side surface,
A fixing portion fixed to the first side surface;
An exterior portion formed on the outdoor side of the fixed portion to conceal the joint;
A seal portion that is formed on the side of the fixed portion that faces the second side surface and is pressed against the second side surface;
A first connecting portion that connects the outer appearance portion and the seal portion;
A second connecting portion that is formed on a side surface on the outdoor side of the fixing portion and connects the external appearance portion and the fixing portion;
And a third connecting portion connecting the said exterior portion and the sealing portion in between the first connection part and the second connecting portion,
The first connecting portion has a structure that suppresses displacement of the appearance portion due to deformation of the seal portion caused by the seal portion being pressed against the second side surface.
It said second connecting portion, joint fillers, characterized that you have flexible. 2. The height of the seal portion with respect to the first side surface is higher than the height of the appearance portion with respect to the first side surface in a state where the second side surface is not pressed. Or the joint material of 2 . The seal part is
Including first and second extending portions extending from the fixed portion;
The joint material according to any one of claims 1 to 3 , wherein the first and second extending portions form a hollow structure connected to each other.

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