JP2019082088A - Waterproof structure of wall joint - Google Patents

Abstract

To provide a waterproof structure of a wall joint for closing a joint formed between wall panels adjacent to each other, in which material can be easily changed according to function of each portion with reduced manufacturing cost.SOLUTION: A waterproof structure 1 of a wall joint for closing a joint 3 formed between wall panels 2 adjacent to each other comprises: a primary water cut-off material 4 including a lid portion 4a which is formed wider than width W1 of the joint and straddles decorative surfaces 21 of the adjacent wall panels 2 and extending in a longitudinal direction of the joint 3; a secondary water cut-off material 5 which is fitted with a first protruding portion 4b extending from a surface at the wall inside of the lid portion 4a to a wall inside direction, has fin-shaped fin portions 5a formed at both end portions in a width direction, is pressed into an inside of the joint 3, and extends in the longitudinal direction of the joint 3; and a holding clip 6 including a pair of fitting portions 6a externally fitting with a second protruding portion 5b extending from a base end of the fin portion 5a to the wall inside direction and a pair of engaging portions 6b elastically engaging with end surfaces 2a of the wall panels 2.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a waterproof structure of a wall joint that closes a joint formed between adjacent wall panels.

  DESCRIPTION OF RELATED ART Conventionally, the dry joint structure which obstruct | occludes the joint formed between the adjacent outer wall panels is known as disclosed by the following patent document 1. FIG. According to the present invention, the joint lid which closes the joint across the adjacent outer wall panel, the insertion portion which protrudes from the center of the inner side surface of the joint lid, and the left and right of the insertion portion Water can be prevented from infiltrating into the joint by pressing the joint material integrally formed with the abutting fin portion from the outdoor side into the joint. Further, the joint material is disposed on the indoor side of the joint material, and is prevented from coming off from the outer wall by the joint material holder which is externally fitted to the insertion portion and locked to the indoor side edge of the outer wall panel.

  In addition, the waterproof structure described in Patent Document 2 includes a primary seal member having a lid facing outward and a weir that presses against the fore-end surface of the outer wall panel, and a first seal member formed on the indoor side of the primary seal member. A clip member fitted to the two projections, and a secondary waterproof member externally fitted to the clip member and pressed against an end edge on the indoor side of the outer wall panel are provided, and each member is configured separately. The primary seal member and the secondary waterproof member formed of an elastic resin can be used integrally by fitting each other through the clip member, and these integrated members are press-fit into the joint to form a joint. It is possible to prevent the ingress of water into the interior.

JP 2007-9620 JP 2011-157707

  However, in the joint material described in Patent Document 1, since the joint cover, the insertion portion, and the fin are integrally formed, a large-scale manufacturing facility is required to manufacture a complicated shape, and the shipment quantity to some extent There is a problem that the equipment maintenance cost will increase if you do not hold. Furthermore, it is difficult to change the material according to the function expected for each part, and even if the material can be changed for each part, it can not be separated for each material at the time of disposal, and It can not be made into resources.

  Further, in the joint structure of Patent Document 2, although the primary seal member and the secondary waterproof member are separately formed, since the lid portion and the collar of the primary seal member are also integrally formed, the functions of the respective portions are also provided. It is not easy to change the material accordingly. In addition, since the clip member is only for connecting the primary seal member and the secondary waterproof member, both members of the primary seal member and the secondary waterproof member formed of an elastic resin are aged due to age deterioration. May fall off the vertical joint.

  Therefore, the present invention has been made in view of the problems described above, and is a waterproof structure of a wall joint that blocks a joint formed between adjacent wall panels, which is easy according to the function of each part It is an object of the present invention to provide a structure capable of changing the material and suppressing the manufacturing cost.

  The waterproof structure of the first wall joint according to the present invention is a waterproof structure of a wall joint that closes the joint formed between adjacent wall panels, wherein the waterproof structure is formed wider than the width of the joint and the adjacent And a first waterproofing member extending in the longitudinal direction of the joint, and a first projection extending in the inward direction from a surface on the inner side of the wall of the lid. A secondary water blocking material extending in the longitudinal direction of the joint formed with fin-like fins at both ends in the width direction and pressed into the joint, and extending inward from the proximal end of the fin It is characterized by comprising a holding clip having a pair of fitting portions externally fitted to the second projecting portion, and a pair of locking portions resiliently locking to the fore-end surface of the wall panel.

  In the waterproof structure of the second wall joint according to the present invention, the first projection forms at least one pair of first projections on both sides in the width direction of the joint, and the second projection is the lid A groove is formed extending from the surface on the part side toward the inside of the wall and protruding from the inner surface to form a pair of second protrusions facing each other, and the distance between the tips of the pair of second protrusions is the pair of The distance is equal to or less than the distance between the tips of the first protrusions.

  In the waterproof structure of the third wall joint according to the present invention, the pair of fitting portions extend in the direction of the lid portion and face each other of a pair of plate pieces opposed substantially in parallel and the pair of plate pieces Forming a pair of barbs that obliquely project inward from the wall, and the second protrusion forms a pair of recesses on both sides in the width direction of the joint, and the pair of barbs It is characterized in that the distance between the tips of the two is formed substantially the same as the width of the position of the recess of the second protrusion.

  The waterproof structure of the fourth wall joint according to the present invention is characterized in that the second projecting portion has higher rigidity than the fin portion.

  In the waterproof structure of the fifth wall joint according to the present invention, the lid portion bends diagonally with both end portions in the width direction facing in the wall direction, and the fin portion slants with the tip portion facing in the wall direction It is characterized by bending.

  According to the waterproof structure of the first wall joint of the present invention, since the primary water stopping material and the secondary water stopping material are separately formed, each water blocking material is manufactured with a simpler material and shape than before. It is possible to reduce the manufacturing cost. In addition, since each water blocking material can be made of a different material, the maintenance time is matched by making the material of each water blocking material into a material that has substantially the same durable years in consideration of the site to be installed. It is possible to build a reasonable waterproof structure. In addition, when the holding clip is externally fitted to the secondary water blocking material, the holding clip presses the second projecting portion of the secondary water blocking material, so the fixing strength between the primary water blocking material and the secondary water blocking material Can be improved. Therefore, the strength of the fitting portion of each water blocking material can be suppressed to a low level, and the assembling operation of the respective water blocking materials can be easily performed, and the secondary water blocking material fitted to the primary water blocking material You can broaden the choice of materials.

  According to the waterproof structure of the second wall joint of the present invention, the distance between the tips of the pair of second protrusions of the second protrusion is equal to or less than the distance between the tips of the first protrusions of the first protrusion. When the first protrusion is pressed into and fitted to the groove of the second protrusion, the second protrusion can be prevented from coming off and the first protrusion can be prevented from being removed from the groove. Therefore, only by pressing and fitting the primary water blocking material to the secondary water blocking material, the two water blocking materials can be integrated, and assembly work can be easily performed.

  According to the waterproof structure of the third wall joint of the present invention, the distance between the tips of the pair of return pieces is formed to be substantially the same as the width of the position of the recess of the second projecting portion. When the secondary water blocking material is pushed in between, the return piece can be locked in the recess and the secondary water blocking material can be prevented from being detached from the holding clip. Therefore, only by pushing the secondary water blocking material into the holding clip, the two members can be integrated, and the assembling operation can be easily performed.

  According to the waterproof structure of the fourth wall joint of the present invention, the second projecting portion has higher rigidity than the fin portion, and therefore, the primary water blocking material and the secondary waterproofing member are more than when using the same material as the fin portion. The fit with the water blocking material can be strengthened. Therefore, it is difficult for the primary water stopping material to come off the secondary water stopping material, and a stable waterproof structure of the wall joint can be constructed.

  According to the waterproof structure of the fifth wall joint of the present invention, the lid portion is bent obliquely with both end portions in the width direction facing in the wall direction, and the fin portion is inclined with the tip portion facing in the wall direction Since it is bent, it is possible to prevent the entry of water into the inside of the wall without forming a gap between the wall panel and each water blocking material.

Sectional drawing which shows the waterproof structure of wall joint. Partially omitted perspective view showing a primary water stopping material and a secondary water stopping material. The perspective view which shows a holding clip. The top view which shows a holding clip. Sectional drawing which shows primary water stop material and secondary water stop material, and AA sectional drawing of the holding clip of FIG. Sectional drawing which shows a mode that primary water stop material, secondary water stop material, and a holding clip were integrated. Sectional drawing which shows a mode before pressing in to the joint the holding clip integrated with each water stop material. Sectional drawing which shows a mode that the holding clip integrated with each water stop material is pressingly injected to joint. Sectional drawing which shows a mode that each water stop material and the holding | maintenance clip were pressingly injected in the joint formed between two wall panels from which thickness differs.

  Hereinafter, the best embodiment of the waterproof structure of a wall joint is described, referring to each figure. The waterproof structure of the wall joint of the present invention is mainly used for vertical joints formed between wall panels which are outer walls, but it can be used indoors / outdoors as long as the joints between the wall panels. Here, the case where the wall panel is an outer wall will be described. Moreover, in this application, "in a wall" refers to the space inside the wall in which the housing which supports a wall panel is located.

  As shown in FIG. 1, the waterproof structure 1 of the wall joint is a structure for closing the joint 3 formed between the wall panels 2 adjacent to each other, and is formed wider than the width W1 of the joint and adjacent It fits into the primary waterproofing material 4 having the lid 4a straddling the decorative surface 21 of the wall panel 2 and the first projecting portion 4b extending in the inner wall direction from the inner wall surface of the lid 4a, both ends in the width direction A pair of secondary waterproof members 5 formed with fins in the form of fins and pressed into the interior of the joint 3 and a pair of outer protrusions fitted in the second protrusions 5b extending inward from the base end of the fins 5a And a holding clip 6 having a pair of locking portions 6 b resiliently locking on the fore-end surface 2 a of the wall panel 2.

  The wall panel 2 shown in FIG. 1 shows an example of an outer wall material. The wall panel 2 is a flat member facing the outside, and at the end of the inner surface of the wall, a frame 22 made of a channel steel which opens the groove toward the side of the wall panel 2 is fixed . The wall panel 2 is not limited to the shape shown in FIG. 1 and may be a thick wall member such as an extrusion-formed cement board or lightweight cellular concrete. The wall panels 2 adjacent to each other are arranged to be flush with each other, and are horizontally spaced from each other, and fixed to the housing 7 such as a pillar or a stud by a conventionally known fixing fitting not shown. As shown, joints 3 are formed between the wall panels 2, and the width W 1 of the joints is formed to a predetermined width according to the type and shape of the wall panels 2.

  As shown in FIG. 1 and FIG. 2, the primary water blocking material 4 is a long member extending in the longitudinal direction of the joint 3 and formed in a substantially flat plate shape, and a lid portion straddling the decorative surface 21 of the adjacent wall panel 2 It is a member of a cross-sectional view substantially T-shape comprised by 4a and the 1st protrusion part 4b extended in a wall inside direction from the width direction approximate center of the surface of the wall inside of lid 4a. The first protrusion 4b is provided with a pair of first protrusions 41 on both side surfaces in the width direction of the joint 3. Further, the lid 4a is slightly bent so that both ends in the width direction are directed in the wall direction doing. The first width W2, which is the width of the lid, is formed wider than the width W1 of the joint. In the illustrated example, two first protrusions 41 are provided, but the number is not particularly limited as long as it is one or more.

  As shown in FIG. 1, when installed in the joint 3, the primary water stopping material 4 is a member that directly touches the outside air. The material is not particularly limited as long as it is excellent in weather resistance and durability, but when it is used for the outer wall as in this embodiment, it has the above-mentioned function and can be easily coated commonly with the wall panel 2 Metallic materials, such as aluminum profiles, are preferred. In addition, when the primary water stopping material 4 is made into a hard material like a metal material, when the decorative surface 21 of the wall panel 2 is made into a thing without an unevenness | corrugation, the stable waterproof performance can be hold | maintained.

  As shown in FIG. 1 and FIG. 2, the secondary water blocking material 5 is a long member extending in the longitudinal direction of the joint 3 and has long fin-like fins 5a respectively formed at both ends in the width direction. And a second projecting portion 5b having a substantially U-shaped cross-sectional view that protrudes inward from the proximal end in the width direction of the fin 5a and engages with the first projecting portion 4b of the primary water blocking material 4 . Further, a second width W3 which is a width between the tips of the two fins 5a is formed wider than the width W1 of the joint.

  The second protrusion 5 b is a long member extending in the longitudinal direction of the joint 3 and forms a groove 51 extending in the wall from the surface on the lid 4 a side. The groove 51 is provided with a pair of second protrusions 52 that project from the inner side surface and face each other and engage with the pair of first protrusions 41 of the primary water blocking material 4. As shown in FIG. 5, the third width W3a, which is the distance between the ends of the pair of second protrusions 52, is formed equal to or less than the fourth width W2a, which is the distance between the ends of the pair of first protrusions 41. In the illustrated example, the pair of second protrusions 52 is provided in the same number as the pair of first protrusions 41, but the number of the pair of second protrusions 52 may be larger than that of the pair of first protrusions 41. . Further, on both outer side surfaces of the second protrusion 5 b, a pair of depressions 53 to be fitted to the fitting portion 6 a of the holding clip 6 is formed. The thickness of the fin 5a is slightly reduced from the base end in the width direction toward the tip, and the tip is slightly bent in the wall inner direction.

  The secondary water blocking material 5 is formed of a resin having elasticity and water tightness. More specifically, the material of the second projecting portion 5b has a rigidity that can be fitted to the first projecting portion 4b of the primary water blocking material 4 and the fitting portion 6a of the holding clip 6, in particular, the heat curing Hard resins and thermoplastic hard resins are preferred. The material of the fins 5a is preferably a soft resin formed of a thermosetting resin elastomer or a thermoplastic resin elastomer. Thus, by making the material of the second projecting portion 5 b higher in rigidity than the fin portion 5 a, the second projecting portion 5 b is worn earlier than the fin portion 5 a and the primary water blocking material 4 and the holding clip 6 It is possible to prevent the situation of falling off from the wall and to construct a stable waterproof structure 1 of the wall joint. The second protrusion 5 b and the fin 5 a may be made of the same material as long as the above-mentioned function is satisfied.

  As shown in FIG. 3 and FIG. 4, the holding clip 6 is a metal fitting formed by bending both end portions of one metal plate. As shown in FIG. 1, the holding clip 6 is resiliently engaged with the pair of fitting portions 6 a externally fitted to the second projecting portion 5 b of the secondary water blocking material 5 and the fore-end surface 2 a of the wall panel 2. It has a pair of locking portions 6b, and a groove-shaped base end portion 6c that protrudes in the in-wall direction in common with the fitting ends 6a and the locking portions 6b.

  As shown in FIGS. 3 and 4, the pair of fitting portions 6 a is formed on each side of the locking portion 6 b in the longitudinal direction. The pair of fitting portions 6a is formed by bending the pair of first plate pieces 61 in which the base end portions 6c are bent away from each other, and the tip of the first plate piece 61 in the direction opposite to the base end portion 6c. A pair of second plate pieces 62, which are bent and extend in the direction of the lid 4a and opposed substantially in parallel, and a pair of second plate pieces 62 protrude substantially obliquely in the direction of the base end 6c from the mutually opposing surfaces And a pair of return pieces 63. As shown in FIG. 5, the fifth width W4a, which is the distance between the tips of the pair of return pieces 63, is formed substantially the same as the sixth width W3b, which is the width of the position of the depression 53 of the second projecting portion 5a. It is done.

  As shown in FIGS. 1 and 3, the pair of locking portions 6b extends from the base end 6c toward the lid 4a and faces each other in a pair of elastic plates 64 in the form of a spring plate and the tip of the elastic plate 64. It is formed of a pair of hooking pieces 65 which are formed by bending a portion and hooked to the fore-end surface 2 a of the wall panel 2. The pair of elastic plates 64 is formed to have a spring plate shape by being obliquely provided in the direction separating from the base end portion 6c and bending in the direction approaching each other substantially at the middle between the base end and the tip. The seventh width W4 which is the width of the bent portion of the pair of elastic plates 64 and the eighth width W5 which is the width of the pair of hooking pieces 65 are formed wider than the width W1 of the joint.

  The primary water stopping material 4, the secondary water stopping material 5, and the holding clip 6 can be integrated into one piece by fitting each other as shown in FIGS. 5 and 6. Specifically, first, the first projecting portion 4 b of the primary water blocking material 4 is pressed into the groove 51 of the secondary water blocking material 5 and fitted. At this time, as described above, since the third width W3a is formed equal to or smaller than the fourth width W2a, it is possible to prevent the second protrusion 52 from coming off and the first protrusion 4b from coming off the groove 51.

  Then, the pair of fitting portions 6a of the holding clip 6 is fitted into the second projecting portion 5b of the secondary water blocking material 5 from the outside, and the barbed pieces 63 are engaged with the depressions 53 to integrate the respective members. As described above, since the fifth width W4a is substantially the same as the sixth width W3b, it is possible to prevent the barbs 63 from coming off and the second protrusion 5b from coming off the fitting portion 6a. Further, as shown in FIG. 7, when the holding clip 6 is externally fitted to the secondary water blocking material 5, the hook portion 5a is partially curved because the locking portion 6b presses the fin portion 5a. In addition, what is necessary is just to install at least one or more holding clips 6 in the secondary water blocking material 5.

  When the primary waterproofing material 4 is to be detached from the secondary waterproofing material 5 by externally fitting the holding clip 6 to the secondary waterproofing material 5 in this manner, the first projection 4b and the second projection 5b Since the force which resists not only the fitting part of 1 but also the fitting part of the fitting part 6a and the 2nd projection part 5b is generated, the fixing strength of the primary water stopping material 4 and the secondary water stopping material 5 is improved. be able to. Therefore, the strength of the fitting portion of the primary water stopping material 4 and the secondary water stopping material 5 can be kept relatively low, and the assembling work of the respective water stopping materials 4 and 5 can be easily performed. In addition, the water blocking members 4 and 5 and the holding clip 6 may be integrated in advance in a factory, and the installation labor at the construction site may be omitted. In this case, since the respective members are fitted, there is no possibility that the water blocking materials 4 and 5 shift in the longitudinal direction during transportation or the primary water blocking material 4 is detached from the secondary water blocking material 5.

  And as shown in FIG.7 and FIG.8, the holding clip 6 integrated with each water blocking material 4 and 5 is stuffed into the joint 3 from the exterior side. At this time, since the seventh width W4 is formed wider than the width W1 of the joint, the elastic plate 64 of the holding clip 6 abuts on the fore-end surface 2a of the wall panel 2 and elastically deforms to the inside of the joint 3 It will be pressed in.

  Then, as shown in FIG. 1, the holding clip 6 integrated with the water blocking materials 4 and 5 is held on the joint 3 until the lid 4 a of the primary water blocking material 4 abuts on the decorative surface 21 of the wall panel 2. Push in. At this time, since the second width W3 shown in FIG. 2 is formed wider than the width W1 of the joint, the fin portion 5a is elastically deformed and pressed against the fore-end surface 2a of the outer wall plate. Further, since the hooking piece 65 of the holding clip 6 is wider than the width W1 of the joint, the hooking piece 65 of the holding clip 6 is caught and locked to the fore-end surface 2a of the wall panel 2 To prevent. Since the first width W2 shown in FIG. 2 is wider than the width W1 of the joint, as shown in FIG. 1, the holding clip 6 integrated with the water blocking material 4 and 5 is jointed 3 As it is pushed into, the cover 4 a of the primary water blocking material 4 straddles the decorative surface 21 and closes the joint 3. In addition, since the lid 4a is bent diagonally in such a manner that both end portions in the width direction are directed inward in the wall, and the fin portion 5b is bent obliquely inward in the wall, the wall panel 2 There is no need to form a gap between each of the water blocking members 4 and 5 and water can be prevented from entering the inside of the wall.

  Although the case where the two wall panels 2 adjacent to each other have the same thickness has been described here, it is also possible to use wall panels 2 having different thicknesses as shown in FIG. In this case, the secondary water blocking material 5 and the holding clip 6 are elastically deformed in accordance with the shape of the fore-end surface 2 a of the wall panel 2 so that the entry of water into the joint 3 can be prevented. Therefore, for example, when repairing or expanding a building, even when the thickness of the new wall panel and the thickness of the existing wall panel are different, each water blocking material 4, 5 and the holding clip 6 are joined 3 The waterproof structure 1 of the wall joint can be constructed by press-fitting.

  As described above, since the waterproof structure 1 of the wall joint of the present invention is formed separately and not integrally forming the water blocking materials 4 and 5, the water blocking materials 4 and 5 may be formed of materials and shapes simpler than those of the prior art. Can be manufactured, and the manufacturing cost can be suppressed. Moreover, since the water blocking materials 4 and 5 can be made of suitable materials according to the site to be installed, for example, the primary water blocking material 4 that is easily affected by the outside air or indoor environment is a material having weather resistance. The secondary water blocking material 5 pressed into the joint 3 can be made of a material excellent in water tightness and easily elastically deformed.

  In addition, when disassembling each water blocking material 4 and 5 and the holding clip 6 which were integrated, it is only necessary to reverse the procedure mentioned above. Therefore, the holding clip 6 externally fitted to the secondary water blocking material 5 can be removed, and the primary water blocking material 4 can be pulled out of the secondary water blocking material 5 to disassemble each member. Therefore, when replacing the water blocking materials 4 and 5 and the holding clip 6 due to aging deterioration, damage, etc., the members can be easily separated, which can lead to recycling.

  Further, it is needless to say that the embodiment of the present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the scope of the spirit of the present invention.

  The present invention can be suitably used in joints formed between adjacent outer wall panels.

1 Waterproof structure of wall joint 2 Wall panel 3 joint 4 Primary water blocking material 4a Lid portion 4b 1st projection 41 1st projection 5 1st projection 5 Secondary waterproofing material 5a fin portion 5b 2nd projection 51 groove 52 2nd projection 53 Recess 6 Holding clip 6a Fitting portion 6b Locking portion 62 Plate piece (second plate piece)
63 Return piece W1 Joint width W2a Fourth width (distance between the tips of a pair of first projections)
W3a third width (distance between the tips of a pair of second protrusions)
W3b sixth width (width of the depression at the second protrusion)
W4a fifth width (distance between the tips of a pair of barbs)

Claims (5)

A waterproof structure of a wall joint that closes a joint formed between wall panels adjacent to each other,
A primary water blocking material formed wider than the width of the joint and extending in the longitudinal direction of the joint, having a lid portion straddling the decorative surface of the adjacent wall panel;
The first projection which extends from the inner surface of the lid to the inner direction of the wall is fitted, and fins are formed at both ends in the width direction to be press-fitted into the joint, and the length of the joint is elongated Secondary water blocking material extending in the direction,
A holding clip having a pair of fitting portions externally fitted to a second projecting portion extending inward from the base end of the fin portion toward the wall and a pair of locking portions resiliently locking to the fore-end surface of the wall panel And a waterproof structure of a wall joint characterized by comprising. The first protrusion forms at least one pair of first protrusions on both side surfaces in the width direction of the joint,
The second projecting portion extends in the wall in the inward direction from the surface on the lid side, and forms a groove provided with a pair of second protrusions which protrude from the inner side surface and are opposed to each other.
The waterproof structure of a wall joint according to claim 1, wherein a distance between tips of the pair of second protrusions is equal to or less than a distance between tips of the pair of first protrusions. The pair of fitting portions are a pair of plate pieces extending in the direction of the lid portion and facing substantially in parallel, and a pair of barbeds that obliquely project in the wall direction from mutually opposing surfaces of the pair of plate pieces Form a piece,
The second projection forms a pair of recesses on both side surfaces in the width direction of the joint,
The waterproof of a wall joint according to claim 1 or 2, wherein the distance between the tips of the pair of barbs is formed to be substantially the same as the width of the position of the recess of the second projecting portion. Construction.   The waterproof structure for a wall joint according to any one of claims 1 to 3, wherein the second protrusion has a rigidity higher than that of the fin. The lid portion is bent at an angle in such a manner that both end portions in the width direction are directed inward in the wall,
The waterproof structure for a wall joint according to any one of claims 1 to 4, wherein the fin portion is bent diagonally so that the tip end portion is directed inward in the wall.

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