JP2017089113A - Dropout prevention clip, seal material, and joint structure of exterior wall panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dropout of a seal material from a joint when fitting the seal material on the joint, without fitting on the seal material beforehand.SOLUTION: A dropout prevention clip (2) is fitted on an exterior wall fixture for fixing an exterior wall panel, and has an arm part (23) formed on a surface (21) opposite a vertical joint for having a lip protruding from a part of a seal material hooked thereon.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a seal material that seals joints between outer wall panels, a fall-off prevention clip that prevents the seal materials from falling off, and a joint structure of the outer wall panels in a building such as a house.

  As a method for constructing an outer wall of a house or the like, a method for sealing a joint between the outer wall panels with a sealing material after fixing a plurality of outer wall panels to the house is known. Examples of the technique related to the joint sealing include techniques disclosed in Patent Documents 1 to 4. Patent Document 1 includes a head seal portion and an arm seal portion (primary seal portion) that seal the joint inside the joint, and a leg seal portion (secondary seal portion) that seals the joint from the indoor side. Joint materials are disclosed. Patent Document 2 discloses a fixed seal member having the function of the primary seal portion. Patent Document 3 discloses a structure including a primary seal member, a clip member, and a secondary waterproof member. These members are connected and inserted into the joint. Patent Document 4 discloses a fireproof and waterproof structure including a fireproof joint material having the function of the primary seal portion and a clip that prevents the fireproof joint material from falling off the joint. Patent Document 5 includes a primary seal portion and a secondary seal portion, and a seal lip that waterproofs the joint and a guide lip that performs a guide function when inserted into the joint are formed in the secondary seal portion. Yes.

  In addition, as a conventional joint seal structure, the seal structure shown in FIG.7 and FIG.8 is mentioned. (A)-(d) of FIG. 7 is a figure which shows an example of the member conventionally used in order to seal the joint of an outer wall panel, and shows the waterproof structure of patent document 6. As shown in FIG. (A) of FIG. 7 is a figure which shows the shape of the conventional primary sealing material 101. FIG. FIG. 7B is a view showing the shape of a conventional drop-off prevention clip 102. (C) of FIG. 7 is a figure which shows the shape of the conventional secondary sealing material 103. FIG. FIG. 7D is a view showing the shape of the conventional hook preventing metal fitting 104. (E) of FIG. 7 is a figure which shows the state by which the vertical joint 32 of the outer wall panel 31 is sealed by the member shown to (a)-(d) of FIG. As shown in FIG. 7E, the outer wall panel 31 has a cavity defined by the inner wall 31 a that communicates with the vertical joint 32. The outer wall panel 31 is fixed to a housing shaft 35 by an outer wall fixing bracket 34.

  In the conventional method, when the vertical joint 32 between the outer wall panels 31 is sealed, the hook preventing metal fitting 104 is first attached to the outer wall fixing metal fitting 34. Next, the secondary sealant 103 is inserted from the vertical joint 32 into the cavity of the outer wall panel 31. The secondary sealing material 103 is inserted into the vertical joint 32 in a state where the surface facing the outer wall fixing metal fitting 34 is bent inward, and spreads along the inner wall 31 a of the outer wall panel 31. Next, the drop prevention clip 102 is attached to the primary sealing material 101. By inserting the primary sealant 101 with the drop-off prevention clip 102 attached into the vertical joint 32, the sealing of the vertical joint 32 is completed.

  FIG. 8A is a perspective view showing a state in which the drop-off prevention clip 102 is attached to the primary sealing material 101. As shown in (a) of FIG. 8, a plurality of dropout prevention clips 102 are attached to the indoor side of the primary sealing material 101 at a predetermined interval (for example, an interval of 0.6 m). FIG. 8B is a diagram showing the positional relationship of each member in a state where the vertical joint 32 (see FIG. 7E) is sealed. As shown in FIG. 8 (b), the dropout prevention clip 102 is outside the secondary sealant 103 and is in contact with the hook preventing metal fitting 104 and the outer wall fixing metal fitting 34 (see FIG. 7 (e)). It is placed at a position where it does not interfere.

JP 2001-262724 A (published September 26, 2001) Japanese Patent Laid-Open No. 9-41505 (published on February 10, 1997) JP 2011-157707 A (released on August 18, 2011) JP 2011-169028 A (published on September 1, 2011) Japanese Patent Laying-Open No. 2015-132142 (released on July 23, 2015) JP 2011-179216 A (published September 15, 2011)

  However, in the prior arts shown in FIGS. 7 and 8 shown in Patent Documents 1 to 5 and Patent Document 6, the configuration for fixing the drop-off prevention clip to the outer wall fixing bracket side has not been studied. Therefore, in the prior art, of course, the sealing material integrated with the primary sealing material and the secondary sealing material is fixed to the drop-off prevention clip fixed to the outer wall fixing bracket side, and the waterproof performance is naturally improved. Nothing has been considered.

  In view of the above-described problems, the present invention provides a drop-off prevention clip capable of preventing the seal material from dropping from the joint without attaching the seal material to the seal material in advance. The purpose is to provide.

  In order to solve the above-mentioned problem, the fall-off prevention clip according to the present invention is a sealing material having elasticity capable of sealing the joint between the outer wall panels from the joint in a state where the joint is inserted into the joint. A drop-off prevention clip for preventing the drop-off, which is attached to a fixing bracket for fixing the outer wall panel, and an arm portion for hooking a lip provided protruding from a part of the seal material is attached to a surface facing the joint. Is formed.

  According to the said structure, when a sealing material is inserted from a joint, the lip | rip of a sealing material can be hooked on the arm part of the fall-off prevention clip attached to the said fixing metal fitting. Therefore, it is possible to prevent the inserted sealing material from dropping from the joint without providing a dropping prevention clip on the sealing material side.

  Further, in the dropout prevention clip according to the present invention, the arm portion is separated from one end of the surface and extends to the other end side of the surface facing the one end, and a part of the sealing material When the contact is made, the part is guided to the tip part and hooked on the tip part, and in some sections including the tip part, the part may be inclined toward the surface side.

  According to the said structure, the arm part inclines to the said surface side in the one part area containing the said front-end | tip part. Therefore, it is possible to smoothly guide a part of the sealing material inserted in the bent direction from the joint toward the drop-off prevention clip in the direction from the central axis of the joint toward the outer wall panel.

  The sealing material according to the present invention is a sealing material that has elasticity and seals the joint in a state where the sealing material is inserted into a joint between the outer wall panels on which the drop-off prevention clips are installed. A primary seal portion that seals the joint, and a secondary seal portion that seals the joint from the inner wall side of the outer wall panel, and the secondary seal portion extends in the longitudinal direction of the secondary seal portion. A first lip that protrudes toward the primary seal portion, contacts the inner wall, and forms a waterproof space between the inner wall, the primary seal portion, and the secondary seal portion; and in a longitudinal direction of the secondary seal portion And a second lip that protrudes to the opposite side of the primary seal portion and fixes the secondary seal portion to the drop-off prevention clip installed on the outer wall panel.

  According to the said structure, the said waterproof space can be formed in the state in which the sealing material was inserted in the joint by providing the said 1st lip in the sealing material. Therefore, the sealing material can improve waterproof performance by including the first lip. In addition, since the second lip is provided, the secondary seal portion can be fixed to a drop-off prevention clip that faces the second lip and prevents the seal material from dropping from the joint. Therefore, it is not necessary to attach the drop-off prevention clip to the sealing material. Therefore, the sealing material can improve the waterproof performance, and can prevent the drop-off from the joint without attaching the drop-off preventing clip.

  In the sealing material according to the present invention, the secondary seal portion extends from a connection position with the primary seal portion in a short direction of the secondary seal portion, and the first lip and the second lip are The base may be formed, and the base may be made of a hard material.

  According to the said structure, the base with which a secondary seal part is provided is extended | stretched in the transversal direction of a secondary seal part from the connection position with a primary seal part. Therefore, since the secondary seal portion has a width wider than the joint width, the secondary seal portion needs to be bent and inserted into the joint. Considering this point, it is preferable that the secondary seal portion is manufactured so as to be easily bent along the longitudinal direction (direction extending along the joint to be inserted).

  According to the said structure, the said base is comprised with the hard material. Therefore, if a part of the secondary seal portion is bent, the whole secondary seal material can be bent along the longitudinal direction following the bending of the part. Therefore, it becomes possible to easily insert the sealing material into the joint.

  Further, in the sealing material according to the present invention, the secondary seal portion extends from a connection position with the primary seal portion in a short direction of the secondary seal portion and has a base portion on which the second lip is formed. A plurality of the second lips may be made of a soft material.

  According to the above configuration, when the sealing material is inserted into the joint, the secondary seal portion is bent so that the second lips formed on the respective base portions face each other. And when a secondary seal part is bend | folded, there exists a possibility that a 2nd lip may mutually contact.

  According to the said structure, the 2nd lip is comprised with the soft material. Therefore, the second lip can be deformed when the second lips contact each other as described above. Therefore, it is possible to bend the secondary seal portion so that the length of the secondary seal portion in the short direction (width of the secondary seal portion) becomes narrower. Therefore, it becomes possible to easily insert the sealing material into the joint.

  Further, in the sealing material according to the present invention, the secondary seal portion extends from a connection position with the primary seal portion in a short direction of the secondary seal portion and has a base portion on which the second lip is formed. The second lip may be formed to be inclined toward the connection position.

  According to the above configuration, in the case where the fall-off prevention clip is to fix the second lip by hooking to the arm portion extending from the center axis of the joint to the outer wall panel side, the second clip hooked to the arm portion. It is possible to make it difficult for the two lips to come off from the arm portion. Therefore, it is possible to make it difficult for the sealing material to fall off the joint.

  Moreover, the joint structure of the outer wall panel which concerns on this invention may be equipped with the fall-off prevention clip which concerns on this invention.

  According to the said structure, it becomes the joint structure which can prevent the drop-off | omission of a sealing material, without providing the clip for preventing the omission of the said sealing material in the sealing material side.

  Moreover, the joint structure of the outer wall panel according to the present invention may include the sealing material according to the present invention.

  According to the above configuration, the joint waterproofing performance can be improved, and the joint structure can be prevented from falling off from the joint without attaching the clip for preventing the sealing member to fall off to the sealing member.

  The dropout prevention clip of the present invention can prevent the sealant from dropping from the joint without attaching the sealant to the sealant in advance when the sealant is attached to the joint.

It is sectional drawing which shows the structure of the sealing material which concerns on Embodiment 1 of this invention. It is a figure which shows the outer wall of the house using the sealing material which concerns on Embodiment 1 of this invention. It is a figure which shows the shape of the fall-off prevention clip concerning Embodiment 1 of this invention, (a) is a perspective view, (b) is sectional drawing. (A)-(d) is sectional drawing which shows the process of the attachment to the joint of a sealing material. It is sectional drawing which shows the shape of the sealing material which concerns on Embodiment 2 of this invention. (A) is sectional drawing of the sealing material which concerns on Embodiment 3 of this invention, (b) is a perspective view of the fall-off prevention clip concerning Embodiment 3 of this invention, (b) is embodiment of this invention It is sectional drawing of the drop-off prevention clip which concerns on 3, and (d) is a figure which shows the state by which the vertical joint is sealed with the sealing material and drop-off prevention clip which were shown to (a)-(c). (A)-(d) is a figure which shows an example of the member conventionally used in order to seal the joint of an outer wall panel, (e) is a joint sealed by the member shown to (a)-(d). It is a figure which shows the state currently performed. (A) is a perspective view which shows the state which attached the conventional drop-off prevention clip to the conventional primary sealing material, (b) is a figure which shows the positional relationship of each member in the state by which the joint was sealed.

Embodiment 1
Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. First, FIG. 2 is a figure which shows the outer wall 3 of the house (building) using the sealing material 1 (refer FIG. 1) which concerns on this embodiment. As shown in FIG. 2, a plurality of outer wall panels 31 are attached to the outer wall 3 of the house. A vertical joint 32 and a horizontal joint 33 are formed between the plurality of outer wall panels 31. That is, the vertical joint 32 and the horizontal joint 33 are joints of the outer wall panel 31. A plurality of outer wall panels 31 are adjacent to each other across the vertical joint 32 and the horizontal joint 33.

(Sealing material 1)
FIG. 1 is a cross-sectional view showing a configuration of a sealing material (gasket) 1 according to the present embodiment. The sealing material 1 has elasticity, and seals the joint in a state in which the sealing material 1 is inserted into the vertical joint 32 or the horizontal joint 33 between the outer wall panels 31 on which a later-described drop prevention clip 2 is installed. As shown in FIG. 1, the sealing material 1 includes a primary seal portion 1a and a secondary seal portion 1b. The primary seal part 1a and the secondary seal part 1b are connected and integrated. Below, embodiment which seals the vertical joint 32 with the sealing material 1 is described. However, the sealing material 1 may be used for sealing the horizontal joint 33.

  The primary seal portion 1 a is a member that seals the vertical joint 32 inside the vertical joint 32. The primary seal portion 1a includes a columnar primary base portion 11 extending in the cross section of the interior of the room, a core member 12 embedded to maintain the shape of the primary base portion 11, and a short direction of the seal material 1 from the primary base portion 11 ( And a plurality of sets of primary waterproof lips 13 extending on both sides in the x direction of FIG. In this embodiment, three sets of primary waterproof lips 13 are provided.

  The primary seal portion 1a is entirely made of a soft material except for the core material 12. Here, the soft material is a material having a hardness of 80 degrees or less according to JIS-A standards. Examples of the soft material include general rubber (for example, EPDM (Ethylene Propylene Diene Monomer) rubber, natural rubber, or chloroprene rubber), thermoplastic elastomer (for example, olefin-based (TPO), styrene-based (TPS)). ThermoPlastic Styrene)), or a rubber-like elastic material such as soft vinyl chloride. Moreover, the core material 12 in this embodiment is a steel material.

  The secondary seal portion 1b is a member that seals the vertical joint 32 from the inner wall 31a (see FIG. 4) side of the outer wall panel 31 on the indoor side of the primary seal portion 1a. The secondary seal portion 1b includes a secondary base portion 14 (base portion), a secondary waterproof lip 15 (first lip), and a hooking portion 16 (second lip).

  The secondary base portion 14 is a portion where the secondary waterproof lip 15 and the hooking portion 16 are formed. The secondary base portion 14 protrudes from the indoor side end portion of the primary seal portion 1a, and extends in the short direction of the secondary seal portion 1b from the connection position between the primary seal portion 1a and the secondary seal portion 1b. , A pair of members. The pair of secondary base portions 14 includes a curved portion 14a, a flat portion 14b, and a connection section 14c, respectively. The connection section 14c is a connection portion between the primary seal portion 1a and the secondary seal portion 1b, and is a portion where the material constituting the primary seal portion 1a protrudes as it is. And the curved part 14a comprised with the material peculiar to the secondary seal part 1b is extended from the connection area 14c. Further, a flat portion 14b made of a material unique to the secondary seal portion 1b extends from the curved portion 14a. The secondary waterproof lip 15 and the hooking portion 16 are formed in the flat portion 14b. The number of secondary bases 14 is not limited to one pair, that is, two as long as it is plural, and may be three or more.

  In the present embodiment, the material unique to the secondary base 14 is a hard material. Here, the hard material is a material having a hardness according to JIS-A standard of 80 degrees or more, preferably a material of 90 degrees or more. Specific examples of the hard material include resins such as polypropylene, polyethylene, nylon, polycarbonate, and hard vinyl chloride. In addition, the whole secondary base 14 does not need to be comprised with a hard material, and should just contain the hard material at least in part.

  The secondary waterproof lip 15 is a portion that protrudes from the secondary base portion 14 toward the primary seal portion 1a over the longitudinal direction of the secondary seal portion 1b (the y direction in FIG. 1). The secondary waterproof lip 15 is made of a soft material. However, the secondary waterproof lip 15 may be made of a hard material. The definitions of the soft material and the hard material and specific examples of the material here are the same as the soft material constituting the primary seal portion 1 a and the hard material constituting the secondary base portion 14. Further, as shown in FIG. 4, the secondary waterproof lip 15 contacts the inner wall 31a and forms a waterproof space (secondary drainage space) 36 between the inner wall 31a, the primary seal portion 1a, and the secondary seal portion 1b. To do. More specifically, the secondary waterproof lip 15 forms a waterproof space 36 between the inner wall 31 a, the primary waterproof lip 13 closest to the secondary seal portion 1 b, the secondary base 14, and the secondary waterproof lip 15. The waterproof space 36 is a channel through which water that has entered the outer wall panel 31 is drained from the primary waterproof lip 13 closest to the secondary seal portion 1b. By forming the waterproof space 36, the risk of water entering the outer wall panel 31 rather than the secondary seal portion 1b is reduced. In addition, the space (primary drainage space) formed between each primary waterproof lip 13 and the side surface of the outer wall panel 31 forming the vertical joint 32 is a flow path for draining water that has entered the vertical joint 32 from the outside. is there.

  The hooking portions 16 are portions protruding from the respective secondary base portions 14 to the opposite side to the primary seal portion 1a over the longitudinal direction of the secondary seal portion 1b. The hooking portion 16 fixes the secondary seal portion 1 b to a later-described dropout prevention clip 2 installed on the outer wall panel 31. In the present embodiment, the hook 16 is made of a soft material. However, the hook 16 may be made of a hard material. The definitions of the soft material and the hard material and specific examples of the material here are the same as the soft material constituting the primary seal portion 1 a and the hard material constituting the secondary base portion 14. Further, the hooking portion 16 is formed to be inclined toward the connection position side between the primary seal portion 1a and the secondary seal portion 1b. That is, the angle α formed by the hooking portion 16 and the secondary base portion 14 is formed as an acute angle. For this reason, even if the hook part 16 is a soft material, the possibility of detaching from the outer wall fixing bracket 34 (fixing bracket) side is reduced.

(Clip-off prevention clip 2)
FIG. 3 is a view showing the shape of the dropout prevention clip 2 according to this embodiment. FIG. 3A is a perspective view of the dropout prevention clip 2. FIG. 3B is a cross-sectional view of the dropout prevention clip 2. The dropout prevention clip 2 is a member that prevents the sealing material 1 having elasticity capable of sealing the vertical joints 32 between the outer wall panels 31 from dropping from the vertical joints 32 when inserted into the vertical joints 32. is there. The drop-off prevention clip 2 is a member that replaces the hook preventing metal fitting 104 shown in FIG. 7D as an example of the prior art. The drop-off prevention clip 2 has a function of preventing the sealing material 1 from dropping from the vertical joint 32 in addition to the function of preventing the sealing material 1 from being caught on the outer wall fixing bracket 34 (the function of the hook-preventing fitting 104). Have. The fall prevention clip 2 is attached to an outer wall fixing bracket 34 (see FIG. 4) for fixing the outer wall panel 31 to the house, similarly to the hook prevention bracket 104. In other words, the dropout prevention clip 2 is installed on the outer wall panel 31. In this embodiment, the material of the fall-off prevention clip 2 is spring steel. As shown in FIGS. 3A and 3B, the dropout prevention clip 2 includes a surface 21, a side surface 22, and an arm portion 23.

  The surface 21 is a portion facing the vertical joint 32 in a state where the drop-off prevention clip 2 is fixed to the outer wall fixing bracket 34. The surface 21 has an opening 21 a for enabling access to the screws included in the outer wall fixing bracket 34 in a state in which the dropout prevention clip 2 is attached to the outer wall fixing bracket 34.

  The side surface 22 is a portion for fixing the dropout prevention clip 2 to the outer wall fixing bracket 34. Each side surface 22 has a flange 22a. The flange portion 22 a prevents the dropout prevention clip 2 attached to the outer wall fixing bracket 34 from being detached from the outer wall fixing bracket 34.

  The arm portion 23 is a member that hooks the hook portion 16 that protrudes from a part of the secondary seal portion 1 b of the seal material 1. A plurality of arm portions 23 are provided on the surface 21. The arm portion 23 is separated from one end of the surface 21 and extends to the other end side of the surface 21 facing the one end.

  In the present embodiment, the arm portion 23 is a pair of members that are hooked on each of the pair of hook portions 16. The arm portion 23 includes a root portion 23a that is a root portion, a bent portion 23b that is a bent portion, and a tip portion 23c that is a tip portion. The pair of arm portions 23 have substantially the same shape of the dropout prevention clip 2 when the fallout prevention clip 2 is rotated 180 degrees around the center axis of the surface 21 (the middle position in the long direction and the middle position in the short direction). Is provided on the surface 21 so as to be symmetrical about the point.

  Moreover, in this embodiment, the arm part 23 inclines to the surface 21 side in the one part area including the front-end | tip part 23c. Specifically, the section from the bent portion 23b to the tip portion 23c is inclined in the direction of the surface 21 so that the tip portion 23c is separated from the horizontal plane 24 including the bent portion 23b and parallel to the surface 21. . However, the section from the bent portion 23 b to the tip portion 23 c may be horizontal to the surface 21.

  In addition, the arm part 23 does not need to have the bending part 23b. The arm part 23 should just have the inclination which goes to the surface 21 in the one part area | region including the front-end | tip part 23c among the areas from the root part 23a to the front-end | tip part 23c at least. For example, the entire arm portion 23 may be formed in an arc shape. Moreover, the arm part 23 does not necessarily need to be a pair, and the arrangement position of the plurality of arm parts 23 is not particularly limited. For example, the arrangement position may not be the end of the surface 21, but may be on the surface 21 or the side surface of the drop-off prevention clip 2. That is, the arm part 23 should just be the structure which can guide the secondary seal | sticker part 1b to the front-end | tip part 23c, and can hook the hook part 16 on the front-end | tip part 23c.

  Further, in FIG. 3B, the arm portion 23 extends beyond the left-right symmetry line CL of the drop-off prevention clip 2 to a position directly above the side surface 22 opposite to the root portion 23 a of the arm portion 23. Yes. However, the length of the arm portion 23 may be shorter or longer than the length shown in FIG. Note that “directly above” is a position on the perpendicular of the surface 21 that extends from the boundary between the surface 21 and the side surface 22, and is a position on the side where the arm portion 23 extends from the surface 21.

  In the present embodiment, the front surface 21, the side surface 22, and the arm portion 23 of the dropout prevention clip 2 are all formed by cutting and bending a single spring steel plate. However, the surface 21, the side surface 22, and the arm part 23 may be formed of separate plate materials and welded to each other. Further, the material of the drop-off prevention clip 2 may be resin.

(Attaching the sealing material 1 to the joint)
4A to 4D are cross-sectional views showing a process of attaching the sealing material 1 to the vertical joint 32. FIG. The vertical joint 32 is formed between the two outer wall panels 31. The outer wall panel 31 is fixed to a housing shaft 35 by an outer wall fixing bracket 34. The dropout prevention clip 2 is fixed to the outer wall fixing bracket 34 in advance.

  FIG. 4A is a diagram showing a state before the sealing material 1 is inserted into the vertical joint 32. The secondary base portion 14 of the secondary seal portion 1b is bent toward the indoor side in the direction opposite to that of the primary seal portion 1a, and the hook portions 16 are close to each other. In this state, the insertion width (lip width) of the sealing material 1 into the vertical joint 32 is equal to or less than the width (joint width) of the vertical joint 32. Therefore, the sealing material 1 can be easily inserted into the vertical joint 32.

  In the prior art described with reference to FIGS. 7 and 8, it is necessary to separately insert the secondary sealing material 103 and the primary sealing material 101 into the vertical joint 32. However, since the secondary seal portion 1b and the primary seal portion 1a are connected in advance to the sealing material 1 according to this embodiment, the number of steps in the process of sealing the vertical joint 32 is reduced.

  Further, as described above, the secondary base portion 14 is made of a hard material except for the connection section 14c. Therefore, if a portion of the secondary seal portion 1b is bent, the entire secondary seal portion 1b can be bent following the portion. Therefore, it becomes easy to make the entire secondary seal portion 1b bent in the direction opposite to the primary seal portion 1a as shown in FIG.

  Is the curvature of the curved portion 14a smaller than the example shown in FIG. 4A (the curvature of the circumference of the radius r is 1 / r. That is, the curvature becomes larger as the degree of bending becomes steeper)? Alternatively, when the hooking portion 16 protrudes long, the hooking portions 16 may come into contact with each other when the secondary seal portion 1b is bent. However, the hook 16 is made of a soft material as described above. Accordingly, since the hooking portions 16 can be deformed when they are in contact with each other, the width of the secondary seal portion 1b can be further reduced. Therefore, the secondary seal portion 1b can be easily inserted into the vertical joint 32 and can also be inserted into the vertical joint 32 having a narrower width. Further, when the curvature is large, the curved portions 14a on both sides may interfere with each other. However, since the curved portion 14a is made of the hard material described above, it can be allowed to some extent.

  FIG. 4B is a diagram showing a state in which the secondary base portion 14 of the sealing material 1 inserted into the vertical joint 32 is in contact with the arm portion 23 of the dropout prevention clip 2. The sealing material 1 is inserted while the secondary waterproof lip 15 and the plurality of primary waterproof lips 13 are in contact with the vertical joint 32, and contacts the section of the arm portion 23 between the bent portion 23b and the tip portion 23c.

  FIG. 4C is a diagram illustrating a state in which the secondary seal portion 1 b is in contact with the arm portion 23. The arm part 23 guides the secondary seal part 1b from the contact position (near the bent part 23b) to the tip part 23c and hooks the tip part 23c to the hook part 16. Further, as described above, in the section between the bent portion 23b and the tip portion 23c, the tip portion 23c is inclined toward the surface 21 (see FIG. 3). For this reason, the secondary seal portion 1b that has been inserted from the vertical joint 32 toward the drop-off prevention clip 2 in a bent state is attached to the central axis of the vertical joint 32 (when the drop-off prevention clip 2 is attached to the vertical joint 32). , The clip can be smoothly guided in the direction from the left-right symmetry line CL) of the clip to the outer wall panel 31 side. Further, as described above, the material of the drop-off prevention clip 2 is spring steel. For this reason, the force required to insert the sealing material 1 can be relatively small.

  FIG. 4D is a diagram illustrating a state where the attachment of the sealing material 1 to the vertical joint 32 is completed. At this time, the secondary seal portion 1b has a shape opened to the primary seal portion 1a side (that is, the inner wall 31a side), and the secondary base portion 14 is made of a hard material except for the connection section 14c. . Therefore, in the state inserted in the cavity of the outer wall panel 31, the secondary waterproof lip 15 strongly contacts and seals with the inner wall 31a to form a waterproof space (secondary drainage space) 36 as expected.

  Further, the hooking portion 16 is hooked on the arm portion 23. As described above, the hooking portion 16 is formed to be inclined toward the connection position between the primary seal portion 1a and the secondary seal portion 1b. Further, the drop-off prevention clip 2 is fixed by hooking the hook 16 on the tip 23c of the arm 23 extending in a direction away from the central axis of the vertical joint 32. Therefore, when a force is applied to the sealing material 1 in a direction to drop the sealing material 1 from the vertical joint 32, the engagement between the hooking portion 16 and the arm portion 23, and the secondary waterproof lip 15 and the inner wall 31a. The seal material 1 can be made difficult to fall off due to the large frictional force between the two.

  Further, since the drop-off prevention clip 2 is attached to the outer wall fixing bracket 34, the drop-off prevention clip 2 and the outer wall fixing bracket 34 are inserted when the sealing material 1 is inserted as in the prior art described with reference to FIGS. There is no risk of contact. Furthermore, there is no possibility that the secondary seal portion 1b is pushed by the drop-off prevention clip 2 and a gap is generated between the secondary seal portion 1b and the inner wall 31a.

  As shown in FIG. 4D, the structure (joint structure) of the vertical joint 32 of the outer wall panel 31 according to this embodiment includes a drop prevention clip 2. Thereby, it is possible to prevent the sealing material 1 from dropping without providing a clip for preventing the sealing material 1 from dropping off on the sealing material 1 side. Further, the structure of the vertical joint 32 of the outer wall panel 31 according to the present embodiment includes the sealing material 1. Thereby, while being able to improve the waterproof performance of a joint, the dropout of the sealing material 1 can be prevented without attaching the clip for preventing the sealing material 1 to drop out to the sealing material 1.

[Embodiment 2]
Another embodiment of the present invention will be described with reference to FIG. In the present embodiment, a sealing material 1A having a shape different from that of the sealing material 1 will be described. The shape of the sealing material 1 </ b> A is the same as that of the sealing material 1 except for the secondary base 14.

  FIG. 5 is a cross-sectional view showing the shape of the sealing material 1A. As described above, in the sealing material 1, the secondary base portion 14 has the curved portion 14a and the flat portion 14b. However, as shown in FIG. 5, the sealing material 1 </ b> A has the entire secondary base portion 14 curved and does not have a flat portion.

  Similar to the sealing material 1, such a sealing material 1 </ b> A has high sealing performance when sealing the vertical joint 32 of the outer wall panel 31.

[Embodiment 3]
Another embodiment of the present invention will be described with reference to FIG. In the present embodiment, a sealing material 1B having a shape different from that of the sealing materials 1 and 1A and a dropping prevention clip 2B having a shape different from that of the falling prevention clip 2 will be described. The shape of the sealing material 1B is the same as that of the sealing material 1 · 1A except for the secondary base 14. Further, the shape of the drop-off prevention clip 2B is the same as that of the drop-off prevention clip 2 except for the arm portion 23.

  (A) of FIG. 6 is sectional drawing of the sealing material 1B. As shown in FIG. 6A, the secondary base portion 14 in the sealing material 1B is closer to the short direction of the secondary sealing portion 1b from the connection section 14c than the secondary base portion 14 in the sealing materials 1 and 1A. Long stretched.

  FIG. 6B is a perspective view of the dropout prevention clip 2B. FIG. 6C is a cross-sectional view of the dropout prevention clip 2. As shown in FIGS. 6B and 6C, the arm portion 23 in the dropout prevention clip 2 </ b> B extends longer than the arm portion 23 in the dropout prevention clip 2. Specifically, in FIG. 6C, the arm portion 23 protrudes greatly beyond the right / left symmetry line CL and the side surface 22 of the drop-off prevention clip 2B. More specifically, the length (projection amount) of the arm portion 23 from just above the side surface 22 to the tip end portion 23 c is substantially equal to the length from the left-right symmetry line CL to just above the side surface 22. However, the protruding amount of the arm portion 23 is not limited to the example shown in FIGS. 6B and 6C, and may be in a range that can be accommodated in the cavity defined by the inner wall 31 a of the outer wall panel 31.

  FIG. 6D is a diagram illustrating a state in which the vertical joint 32 is sealed by the sealing material 1B and the dropout prevention clip 2B. When the vertical joint 32 is sealed by the sealing material 1B and the drop-off prevention clip 2B, the waterproof space 36 becomes wider than when the vertical joint 32 is sealed by the sealing material 1 and the drop-off prevention clip 2. For this reason, water that has entered the inside of the outer wall panel 31 rather than the primary waterproof lip 13 closest to the secondary seal portion 1 b is easily drained by the waterproof space 36. Therefore, the possibility of water entering the outer wall panel 31 rather than the secondary waterproof lip 15 is further reduced.

  The present invention is not limited to the above-described embodiments, and various modifications are possible within the scope shown in the claims, and embodiments obtained by appropriately combining technical means disclosed in different embodiments. Is also included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Sealing material 1a Primary seal part 1b Secondary seal part 2 Fallout prevention clip 14 Secondary base (base part)
15 Secondary waterproof lip (first lip)
16 Hook (second lip)
21 Surface 23 Arm part 23c Tip part 31 Outer wall panel 31a Inner wall 32 Vertical joint (joint)
34 Outer wall fixing bracket (fixing bracket)
36 Waterproof space

Claims (8)

A slip-off prevention clip that prevents the sealing material having elasticity capable of sealing joints between outer wall panels from falling off the joints in a state of being inserted into the joints,
Attached to the fixing bracket for fixing the outer wall panel,
An anti-drop-off clip characterized in that an arm portion for hooking a lip provided so as to protrude from a part of the sealing material is formed on a surface facing the joint. The arm is
It is separated from one end of the surface and extends to the other end of the surface opposite to the one end. When a part of the sealing material comes into contact, the part is guided to the tip. It hooks on the tip,
The drop-off prevention clip according to claim 1, wherein a part of the section including the tip portion is inclined toward the surface side. A sealing material that has elasticity and seals the joint in a state of being inserted into a joint between outer wall panels in which the drop-off prevention clip according to claim 1 or 2 is installed,
A primary seal that seals the joint within the joint;
A secondary seal portion for sealing the joint from the inner wall side of the outer wall panel,
The secondary seal part is
A first lip that protrudes toward the primary seal portion along the longitudinal direction of the secondary seal portion, contacts the inner wall, and forms a waterproof space between the inner wall, the primary seal portion, and the secondary seal portion. When,
A second lip that protrudes to the opposite side of the primary seal portion over the longitudinal direction of the secondary seal portion, and that fixes the secondary seal portion to the drop-off prevention clip installed on the outer wall panel. A sealing material characterized by The secondary seal portion includes a base portion extending in a short direction of the secondary seal portion from a connection position with the primary seal portion, and formed with the first lip and the second lip.
The sealing material according to claim 3, wherein the base is made of a hard material. The secondary seal portion includes a plurality of base portions extending in a short direction of the secondary seal portion from a connection position with the primary seal portion and formed with the second lip,
The sealing material according to claim 3 or 4, wherein the second lip is made of a soft material. The secondary seal portion includes a base portion extending in a short direction of the secondary seal portion from a connection position with the primary seal portion, and formed with the second lip.
The sealing material according to claim 3, wherein the second lip is formed to be inclined toward the connection position.   A joint structure for an outer wall panel, comprising the drop-off prevention clip according to claim 1.   A joint structure for an outer wall panel, comprising the sealing material according to any one of claims 3 to 6.

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