JP6496206B2 - Water stop member, parting cover and horizontal joint water stop structure - Google Patents

Description

  The present invention relates to a water stop member, a parting cover, and a cross joint water stop structure that are attached to a cross joint of a building.

  In buildings such as houses, various water-stop structures are used for joints (vertical joints and side joints) between exterior wall panels exposed to the outdoors in order to prevent rainwater from entering the building. . As a conventional water stop structure, a sealing material as shown in FIG. 4A is generally attached to a vertical joint and a horizontal joint. Further, Patent Documents 1 and 2 disclose examples of a water stop structure used for a horizontal joint between outer wall panels in the vertical direction.

  Patent Document 1 discloses a balcony in which a space for drainage ventilation is formed between a draining edge and a locked portion. Further, Patent Document 2 discloses a drainage ventilation structure of an outer wall in which a parting member that covers a horizontal joint and forms a ventilation path is attached to the horizontal ground portion.

JP 2005-256480 A (published September 22, 2005) Japanese Patent Laying-Open No. 2015-90042 (released on May 11, 2015)

  However, when the sealing material shown in FIG. 4A is broken due to aging or the like, as shown in FIGS. 4B and 4C, as the broken portion, the contact portion between the outer wall panel and the sealing material Rainwater, etc. infiltrate from the gaps formed in And the rainwater etc. which infiltrated penetrate | invade into the clearance gap on the indoor side of a sealing material further. Here, since the sealing material shown in FIG. 4 (a) is not structured to allow drainage, rainwater or the like that has entered the clearance on the indoor side of the sealing material is as shown in FIG. 4 (d). There was a possibility that water leaked without being stopped by the EPDM sponge. On the other hand, the techniques described in Patent Documents 1 and 2 have the following problems.

  In the technique described in Patent Document 1, there is a gap between the draining edge and the inner wall material for the balcony, and it is necessary to fill the gap with a sealing material. In the technique described in Patent Document 2, since the position in the vertical direction of the parting member is fixed, a gap is formed between the parting member and the outer wall panel when the height of the horizontal joint changes.

  The present invention has been made to solve each of the above-mentioned problems, and its object is to stably position the parting cover in the depth direction of the horizontal joint against the downward displacement of the parting cover. It is to realize a horizontal joint structure that is maintained.

  A water stop member according to an aspect of the present invention is a water stop member disposed on a horizontal joint between a first outer wall panel and a second outer wall panel disposed vertically below the first outer wall panel. And a base part having an inclined surface for draining water on the upper surface on the upper surface of the second outer wall panel, and an upper surface of the base part, and elastically supporting the parting cover A support portion that contacts the parting cover, and the connection portion connects the contact portion and the base portion, and is bent or curved so as to be convex in the horizontal direction. Part.

  According to said structure, the connection part of a support part is originally bent or curved so that it may become convex in a horizontal direction. Therefore, when the first outer wall panel is arranged on the parting cover, when the parting cover is displaced downward, the connecting portion is further bent or curved at a place where it was originally bent or curved. Therefore, it can suppress that the position of a contact part shifts to the outdoor side or indoor side when a connection part bends or curves. Therefore, the position of the parting cover in the depth direction of the horizontal joint can be stably maintained.

  Moreover, the structure which has the shape fitted to a part of said parting cover may be sufficient as the said contact part.

  According to said structure, a parting cover is fixed to a contact part by fitting with a contact part and a parting cover. Thereby, the position in the depth direction of the parting cover is fixed.

  In addition, the support portion is provided so as to ensure a space for the water to flow from the indoor side to the outdoor side of the support portion, and the connection portion is provided in accordance with the downward displacement of the parting cover. The structure which bends in the intermediate position of the said contact part and the said base part may be sufficient.

  According to said structure, the water which permeated indoor side from the support part can be drained to the outdoor side. The connecting portion bends at an intermediate position between the contact portion and the base portion in accordance with the downward displacement of the parting cover. Since the connecting portion that is convex in the horizontal direction is bent at the intermediate position, the connecting portion is not displaced in the depth direction above and below the bent portion. Therefore, it is possible to prevent the position of the contact portion from shifting to the outdoor side or the indoor side when the connecting portion is bent.

  A parting cover according to an aspect of the present invention includes a decorative portion that covers a lateral joint between a first outer wall panel and a second outer wall panel disposed vertically below the first outer wall panel, and the makeup described above. And a supported part supported so as to contact the lower surface of the first outer wall panel by a support part provided on the water stop member, and the supported part is It is the structure which has a shape fitted to a part of support part.

  According to said structure, a parting cover is fixed to a water stop member by the fitting of a part of support part and a supported part. Thereby, the position in the depth direction of the parting cover is fixed. Moreover, even if the height of the horizontal joint changes, the gap between the first outer wall panel and the parting cover can be eliminated.

  A horizontal joint waterproof structure according to an aspect of the present invention is a horizontal joint waterproof structure including the water stop member and a parting cover, and the parting cover covers the lateral joint from the outside. And a supported portion that is formed so as to be continuous with the decorative portion and supported by the support portion so as to contact the lower surface of the first outer wall panel.

  According to one aspect of the present invention, the position of the parting cover in the depth direction of the horizontal joint can be stably maintained.

It is sectional drawing which shows the principal part of the horizontal joint waterproof structure which concerns on one Embodiment of this invention. It is a schematic diagram which shows the assembly | attachment procedure of the said horizontal joint water stop structure and an upper side outer wall panel. It is a side view which shows the modification of a 1st support part. (A) is an external view which shows typically a mode that the conventional sealing material is mounted | worn with the joint of the building. (B) is AA arrow sectional drawing of the conventional sealing material with which the vertical joint shown to (a) of FIG. 4 was mounted | worn. (C) is a BB arrow directional cross-sectional view of the conventional sealing material with which the horizontal joint shown to (a) of FIG. 4 was mounted | worn. (D) is CC sectional view taken on the line of the conventional sealing material with which the horizontal joint shown to (a) of FIG. 4 was mounted | worn.

<Structure of the main part of the horizontal joint structure>
FIG. 1 is a cross-sectional view showing a main part of a horizontal joint waterproof structure 1 according to an embodiment of the present invention. Hereinafter, for the sake of convenience, the right side is the right side and the left side is the left side for the sake of convenience.

  The upper outer wall panel 5 and the lower outer wall panel 6 are fixed to a building housing 7. The housing 7 is composed of a pillar, a beam, a frame, a wall, or the like. The right side is the indoor side and the left side is the outdoor side (outside). In FIG. 1, the side surfaces of the upper outer wall panel 5 and the lower outer wall panel 6 are drawn. The lower outer wall panel 6 is disposed vertically below the upper outer wall panel 5. The horizontal joint waterstop structure 1 is disposed in the horizontal joint 4 between the upper outer wall panel 5 and the lower outer wall panel 6. Here, the horizontal joint refers to a gap (space) extending in the horizontal direction between the outer wall panels arranged vertically. The outer wall panel positioned above the horizontal joint is referred to as an upper outer wall panel (first outer wall panel), and the outer wall panel positioned below the horizontal joint is referred to as a lower outer wall panel (second outer wall panel). The horizontal joint water-stopping structure 1 prevents rainwater and the like from entering the horizontal joint 4 and discharges rainwater and the like that have entered the horizontal joint 4 to the outside (outside of the outer wall panel). As shown in FIG. 1, the horizontal joint waterstop structure 1 includes a parting cover 2 and a waterstop member 3. The horizontal joint waterproof structure 1 has a shape extending along a direction perpendicular to the drawing of FIG.

  The parting cover 2 prevents rainwater or the like from entering from the outdoor side of the horizontal joint 4. As shown in FIG. 1, the parting cover 2 includes a decorative portion 21 and a supported portion 22 that are connected to each other. The parting cover 2 is made of, for example, metal or hard resin.

  As shown in FIG. 1, the decorative portion 21 has a substantially L-shaped cross section so as to cover the outdoor side of the horizontal joint 4. Since the outdoor side end of the decorative portion 21 extends downward, the horizontal joint 4 is hidden by the decorative portion 21. The cross-sectional shape of the decorative portion 21 may be, for example, a curved shape. In addition, the decorative part 21 is provided with a parting cover side latching part 21a that hooks on the water stop member side latching part 33 so as to protrude downward. The parting cover side locking part 21a has a flat plate shape.

  The supported portion 22 is supported by the first support portion 32 of the water blocking member 3 so as to contact the lower surface of the upper outer wall panel 5. The supported portion 22 has a shape that fits with a part of the first support portion 32 (abutting portion 32a). Here, the first support portion 32 is fitted into the recess formed in the lower surface of the supported portion 22. When viewed from the side direction (direction in which the horizontal joint extends), the cross-sectional shape of the recess is C-shaped. The end of the concave portion is hooked on a part of the first support portion 32 so that the first support portion 32 does not come off. Note that these cross-sectional shapes are not limited to those in FIG. 1, and the supported portion 22 and the first support portion 32 are formed so that a part of the supported portion 22 fits into a recess formed in the first support portion 32. May be. The upper surface of the supported portion 22 is a flat surface and contacts the lower surface of the upper outer wall panel 5. A gasket may be provided on the upper surface of the supported portion 22 to prevent intrusion of rainwater and the like from the outside. The gasket can be formed of, for example, a sponge mainly composed of EPDM (ethylene / propylene diene monomer). The gasket may be formed of other materials instead of mainly EPDM. For example, a gasket made of a rubber-like elastic body such as natural rubber, a rubber material mainly composed of IR (isoprene rubber) or CR (chloroprene rubber), various thermoplastic elastomers, urethane, PVC (polyvinyl chloride) is used. Is preferred.

  The water stop member 3 has a function of draining rainwater or the like that has entered the inside of the horizontal joint 4 to the outside and a function of supporting the parting material 2. The water stop member 3 includes a base portion 31, a first support portion 32, a water stop member side locking portion 33, a rising portion 34, and a second support portion 35, which will be described later. The base part 31, the water blocking member side locking part 33, and the rising part 34 are formed of, for example, metal or hard resin. Furthermore, the first support part 32, the second support part 35, and the waterproof part 34a, which will be described later, are formed of, for example, the rubber-like elastic body (for example, soft resin) described above.

  The base portion 31 is disposed on the vertically upper surface (upper surface 6 a) of the lower outer wall panel 6. The base portion 31 has an inclined surface on the upper surface 31c that is inclined downward from the indoor side to the outdoor side so that the rainwater that has entered is drained naturally to the outdoor side (in the direction away from the housing 7). Note that the shape of the lower surface of the base portion 31 corresponds to the shape of the upper surface 6 a of the lower outer wall panel 6. Auxiliary locking portions 31b having a substantially L-shaped cross-section are respectively locked to the outdoor side upper end portion and the indoor side upper end portion of the lower outer wall panel 6 at the outdoor side lower end portion and the indoor side lower end portion of the base portion 31. Is provided. The water stopping member 3 can be fixed to the lower outer wall panel 6 by the auxiliary locking portion 31b.

  The first support portion 32 is provided on the upper surface of the base portion 31 and elastically supports the parting cover 2. The first support portion 32 is formed of the above-described rubber-like elastic body so that the first support portion 32 can be elastically deformed. The first support portion 32 includes a contact portion 32 a that contacts the parting cover 2 and a connection portion 32 b that connects the contact portion 32 a and the base portion 31. The first support part 32 supports the parting cover 2 to secure a space through which water flows between the base part 31 and the parting cover 2.

  The contact portion 32a has a shape that fits with a part of the parting cover 2 (supported portion 22). In addition, a protrusion 32c that functions as a stopper against the base portion 31 is provided below the contact portion 32a (on the base portion 31 side). In particular, the parting cover 2 is attached by being pressed against the contact part 32a from above. If the projection 32c contacts the base part 31 at this time, it becomes easy to attach the parting cover 2 to the contact part 32a.

  The connecting portion 32b has a shape that is bent or curved so as to be convex in the horizontal direction. In the example shown in FIG. 1, the bent portion of the connection portion 32 b has a convex shape to the left as shown by “<” (substantially square shape). The first support portion 32 applies an upward force to the parting cover 2 by the connection portion 32b being elastically bent or curved.

  The water stop member side locking portion 33 is provided at the outdoor side end portion of the base portion 31 so as to protrude upward. The water stop member side latching portion 33 is engaged with the parting cover side latching part 21a, thereby restricting the movement of the parting cover 2 to the outdoor side and preventing falling off.

  The rising portion 34 has a substantially flat plate shape, and protrudes upward from the indoor side end portion of the base portion 31 so as to cover the lower end portion 5b of the upper outer wall panel 5 from the indoor side. In addition, the shape of the raising part 34 should just be designed so that the lower end part of the upper side outer wall panel 5 may be covered from an indoor side. The rising portion 34 is provided with a waterproof portion 34 a for more reliably preventing rainwater from entering the indoor side so as to contact the indoor side wall surface of the upper outer wall panel 5. In addition, since only the rising portion 34 can prevent rainwater from entering the indoor side from the horizontal joint 4 to some extent, the waterproof portion 34 a may not be provided in the rising portion 34.

  The second support portion 35 is provided on the upper surface of the base portion 31 and elastically supports the parting cover 2. The second support portion 35 is formed of the above-described rubber-like elastic body so that the second support portion 35 can be elastically deformed. The second support part 35 has a curved shape from the base of the second support part 35 to the tip part so that the tip part of the second support part 35 faces the indoor side.

  The water that has entered the upper outer wall panel 5 or into the vertical joint flows into the upper portion 31 from between the parting cover 2 and the rising portion 34. The flow of water is indicated by arrows in FIG. Due to the inclined surface provided on the upper surface of the base portion 31, the infiltrated water flows to the outdoor side. Note that the first support portion 32, the second support portion 35, and the water stop member side locking portion 33 are partially provided with notches or holes so that the infiltrated water can pass to the outdoor side. . In the example shown in FIG. 1, in the first support portion 32, the second support portion 35, and the water stop member side locking portion 33, a part is cut out above the position where hatching is given. The infiltrated water passes between the water stop member 3 and the parting cover 2 and is drained to the outside from the lower outer wall panel 6.

<Assembly procedure of horizontal joint structure>
FIG. 2 is a schematic diagram showing an assembling procedure of the horizontal joint waterproof structure 1 and the upper outer wall panel 5. The assembly of the horizontal joint waterproof structure 1 is realized by following the following procedure.

  (1) First, as shown in FIG. 2A, the water stop member 3 is fixed to the upper surface 6 a of the lower outer wall panel 6. At this time, the auxiliary locking portion 31b is locked to the outdoor side upper end portion and the indoor side upper end portion of the lower outer wall panel 6, respectively. A double-sided tape (not shown) is attached to the lower surface of the base portion 31. In a state where the parting cover 2 is not disposed on the first support portion 32, the connection portion 32b is bent so as to be convex in the horizontal direction.

  (2) Next, as shown in FIG. 2B, the parting cover 2 is disposed on the first support part 32 and the second support part 35 of the water stop member 3. Then, the contact portion 32 a of the water stop member 3 is parted and fitted to the supported portion 22 of the cover 2. Thereby, the parting cover 2 is fixed to the water stop member 3, and the position in the horizontal direction (depth direction of the joint) is fixed.

  Note that the parting cover 2 and the water stop member 3 may be combined in advance. That is, the prefabricated horizontal joint structure 1 can be disposed on the upper surface 6 a of the lower outer wall panel 6. By adopting such a procedure, the trouble of combining the parting cover 2 and the water stop member 3 at the construction site can be saved, and the number of parts managed at the construction site can be reduced.

  Furthermore, in the above description, the horizontal joint water-stopping structure 1 is assembled to the lower outer wall panel 6 after the lower outer wall panel 6 is fixed to the housing 7 of the building, but the lower outer wall panel 6 is attached to the building. For example, before being transported to a building site or before being transported to a building site, or at a building site, the horizontal joint water-stopping structure 1 is attached to the lower outer wall panel 6 in advance, The attached lower outer wall panel 6 may be attached to the housing 7. In this case, the parting cover 2 is supported even if the assembly state and assembly posture of the horizontal joint waterstop structure 1 are likely to change due to various operations until the lower outer wall panel 6 is fixed to the housing 7. Since the part 22 is fitted to a part of the first support part 32 (the contact part 32 a), the parting cover 2 does not come off from the water stop member 3. Further, since the connection portion 32b connecting the parting cover 2 and the water stop member 3 has a simple bent shape and the second support portion 35 is provided on the outdoor side, it is excellent in stability and assembled. The posture can maintain a predetermined shape.

  (3) Next, as shown in FIG. 2C, the upper outer wall panel 5 is attached to the housing 7 so as to be placed on the parting cover 2. The parting cover 2 is displaced downward by lowering the upper outer wall panel 5 from above. Thereby, the connection part 32b which supports the parting cover 2 is bent. Since the connection portion 32b is originally bent so as to protrude in the horizontal direction at an intermediate position between the contact portion 32a and the base portion 31, the connection portion 32b was originally bent according to the downward displacement of the parting cover 2. Bend further at the point. That is, the connecting portion 32b is further bent at the convex vertex in the horizontal direction. Thus, the part where the connection part 32b bends due to the downward displacement of the parting cover 2 is the same as the thickness (thickness in the cross-sectional direction) of the other connection part 32b. The thickness is determined in advance only by the cross-sectional shape without reducing the thickness. Therefore, even if the connecting portion 32b is a rubber-like elastic soft resin, the rigidity is high, and the horizontal joint waterproof structure 1 is shifted only in the vertical direction when the connecting portion 32b is bent, and the contact portion 32a. Can be suppressed from shifting in the depth direction of the joint (indoor side or outdoor side). Therefore, the horizontal joint waterproof structure 1 can stably maintain the position of the parting cover 2 in the depth direction even when it is pressed by the upper outer wall panel 5 from the top after being arranged on the horizontal joint.

  Depending on the building or depending on the mounting accuracy of the outer wall panels, the size of the horizontal joints can vary. In the horizontal joint waterproof structure 1 of the present embodiment, the clearance between the parting cover 2 and the upper outer wall panel 5 is changed by flexibly changing the vertical position of the parting cover 2 according to the position of the upper outer wall panel 5. Can be eliminated.

  As described above, the horizontal joint waterproof structure 1 according to the present embodiment is provided with the parting cover 2 and the waterproof member 3 assembled in advance on the outer wall, and the outer wall is assembled to the building frame 7 on the site. It can be completed only by attaching. Therefore, if the outer wall is fixed to the building housing 7 due to, for example, another wall existing next to the outer wall, the horizontal joint structure 1 according to this embodiment cannot be operated from the outdoor side. Suitable for confined work.

<Modification of first support portion>
FIG. 3 is a side view showing a modified example of the first support portion 32. It is preferable that the connection location between the connection portion 32b and the contact portion 32a and the location of the connection location between the connection portion 32b and the base portion 31 are aligned vertically. However, the present invention is not limited thereto, and the upper and lower connection locations of the connection portion 32b may be shifted. Moreover, even if the connection part 32b is convex toward the outer side of a building, it may be convex toward the inner side ((a) of FIG. 3).

  Further, the connecting portion 32b may be curved like a bow so as to be convex in the horizontal direction like "(" or ")" ((b) of FIG. 3). Even in this case, the connection portion 32 b is further curved at an intermediate position between the contact portion 32 a and the base portion 31 in accordance with the downward displacement of the parting cover 2. Thereby, it can suppress that the position of the contact part 32a shifts to a horizontal direction.

  Further, the connecting portion 32b may have a plurality of bent or curved portions so as to have a zigzag cross-sectional shape ((c) of FIG. 3).

  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 Horizontal joint water stop structure 2 Parting-off cover 3 Water stop member 4 Horizontal joint
5 upper outer wall panel 6 lower outer wall panel 21 decorative part 22 supported part 31 base part 32 first support part (support part) 32a contact part
32b connection

Claims (5)

A water stop member disposed on a horizontal joint between the first outer wall panel and the second outer wall panel disposed vertically below the first outer wall panel;
A base portion disposed on a vertical upper surface of the second outer wall panel and having an inclined surface on the upper surface for draining water to the outdoor side;
A support portion provided on the upper surface of the base portion and elastically supporting the parting cover;
The support part is
A contact portion that contacts the parting cover;
A waterstop member comprising: a connecting portion that connects the abutting portion and the base portion and is bent or curved so as to be convex in a horizontal direction.   The water stop member according to claim 1, wherein the contact portion has a shape that is fitted to a part of the parting cover. The support part is provided so as to secure a space for the water to flow from the indoor side to the outdoor side of the support part.
The water stop member according to claim 1, wherein the connection portion bends at an intermediate position between the contact portion and the base portion in accordance with a downward displacement of the parting cover. A decorative portion that covers from the outside a lateral joint between the first outer wall panel and the second outer wall panel arranged vertically below the first outer wall panel;
A supported part that is formed so as to be continuous with the decorative part and supported by the supporting part provided in the water stop member so as to contact the lower surface of the first outer wall panel;
The parting cover is characterized in that the supported part has a shape fitted to a part of the supporting part. It is a horizontal joint water stop structure provided with the water stop member according to any one of claims 1 to 3, and a parting cover,
The parting cover is
A cosmetic part covering the horizontal joint from the outside;
A horizontal joint waterstop structure comprising: a supported portion that is formed so as to be continuous with the decorative portion and is supported by the support portion so as to be in contact with the lower surface of the first outer wall panel.

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