JP3883949B2 - Exterior wall waterproof structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a waterproof structure on the outer wall of the peripheral edge of, for example, a balcony floor or a rooftop floor.
[0002]
[Prior art]
FIG. 8 shows a waterproof structure of the outer wall around the conventional balcony floor, where (1) is the balcony floor and (2) is the outer wall rising from the periphery of the balcony floor (1). The outer wall (2) is formed by bonding the outer wall material (4) (5) to the base material (3), and the upper end surface of the lower outer wall material (5) is in contact with the lower end surface of the upper outer wall material (4). . Moreover, the thickness of the upper outer wall material (4) is thicker than the thickness of the lower outer wall material (5), and the outer surface of the upper outer wall material (4) projects to the floor side from the outer surface of the lower outer wall material (5). It is in the state. Further, a waterproof sheet (6) extending from the balcony floor (1) side is attached to the outer surface of the lower outer wall material (5) to perform waterproofing.
[0003]
(7) is a draining material formed in a long shape along the boundary between the upper and lower outer wall materials (4) and (5). The draining material (7) includes a vertical fixing piece (9) fixed to the outer surface of the lower outer wall material (5) by screws (8), and a floor extending from the lower end of the vertical fixing piece (9). It consists of a substantially U-shaped draining piece (10) protruding to the side.
[0004]
And the sealing material (11) is filled between the lower end surface of the upper outer wall material (4) and the upper surface of the draining piece (10), and the boundary portion between the upper and lower outer wall materials (4) and (5) is stopped. ing. Such a waterproof structure is also disclosed in, for example, Japanese Patent Application Laid-Open No. 11-350703.
[0005]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-350703 [0006]
[Problems to be solved by the invention]
However, in the conventional waterproof structure, the upper end surface of the lower outer wall member (5) is in contact with the lower end surface of the upper outer wall member (4), and the sealing material ( Adhesion allowance of 11) could not be secured sufficiently, and therefore, it was easy to infiltrate from between the upper outer wall material (4) and the sealing material (11), and the waterproof performance was poor in reliability.
[0007]
Accordingly, the present invention provides a waterproof structure for an outer wall that solves the above-described problems and reliably stops water between the upper outer wall portion and the lower outer wall portion to improve waterproof performance. Objective.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the waterproof structure of the outer wall of the present invention is a drainer attached to the outer surface of the lower outer wall portion by providing a gap between the lower end of the upper outer wall portion and the upper end of the lower outer wall portion. An inward seal receiving piece of material is inserted into the gap, and a sealing material is filled between the upper surface of the seal receiving piece and the lower end surface of the upper outer wall portion .
[0009]
Further, a draining material for closing the gap is provided on the inner side of the sealing material. And a soft piece having flexibility extending from the upper end surface of the lower outer wall portion to the outer surface, and the hard piece is also used as a fireproof plate.
[0010]
The drainer includes a rail fixed to the outer surface of the lower outer wall portion and a cover attached to the rail directly or via a bracket, and the upper end portion of the rising piece of the cover is bent substantially horizontally. And constitutes the seal receiving piece.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a waterproof structure of an outer wall around a balcony floor according to an embodiment of the present invention. (20) is a balcony floor, (21) is an outer wall rising from the peripheral edge of the balcony floor (20). is there. The outer wall (21) includes an upper siding material (22) as an upper outer wall portion, a lower siding material (23) as a lower outer wall portion, and a base frame (24) as a base material.
[0012]
The upper siding material (22) is formed in a rectangular shape by an inorganic material such as a lightweight concrete plate or other concrete plate. The lower siding material (23) is formed in a square shape by, for example, a wood cement board or other inorganic material, and the thickness thereof is thinner than that of the upper siding material (22). In addition, the base frame (24) connects a pair of left and right vertical frame members (25) (25) made of channel steel and a pair of upper and lower horizontal frames (26, 26) also made of channel steel in a square frame shape. Do it. The upper and lower siding materials (22) and (23) are bonded to the base frame (24) with a gap (27) in the vertical direction to constitute the outer wall (21).
[0013]
In the outer wall (21), the upper siding material (22) is projected to the floor (20) side than the lower siding material (23). Also, between the upper siding material (22) and the base frame (24), as shown in FIG. 4, for example, a metal or synthetic resin square plate having a constant thickness of about 0.5 to 1 mm is used. As shown in FIG. 4, a portion of the draining material (40) is disposed between the lower end of the upper siding material (22) and the base frame (24). A gap (32) for insertion is formed.
[0014]
As shown in FIG. 2, the discarded draining material (40) is bonded to the back side of the vertical portion (42) of the hard piece (41) made of, for example, a substantially L-shaped steel plate and the hard piece (41). And a soft piece (43) made of a rubber sheet attached integrally with an agent or the like. The discarded draining material (40) has the vertical portion (42) of the hard piece (41) inserted into the gap (32), and the hard piece (41) is lowered from the inner surface of the upper siding material (22). A gap between the upper and lower siding materials (22) and (23) is formed by straddling the upper end surface of the side siding material (23) and the soft piece (43) straddling from the upper end surface of the lower siding material (23) to the outer surface. (27) is blocked. In the mounted state of the draining material (40), the hard piece (41) functions as a fire plate, so there is no need to provide a separate fire plate, reducing the number of parts and simplifying the assembly process. Can be achieved.
[0015]
Here, the construction of the outer wall (21) will be described. First, in a factory or the like, the upper siding material (22) and the base frame (24) are bonded together, and this is brought to the site and installed. Subsequently, the draining material (40) is attached by inserting the vertical portion (42) of the hard piece (41) into the gap (32). Then, as shown in FIGS. 3 and 4, the soft piece (43) of the draining material (40) is turned up and the lower siding material (23) is attached to the base frame (24), and the outer surface thereof An L-shaped polyvinyl chloride steel plate (44) is attached to the glass sheet, and a waterproof sheet (33) extending from the balcony floor (20) side is further attached to perform waterproofing. In this way, a part of the discarded draining material (40) can be turned up as a soft piece (43), so the factory is shipped with the upper siding material (22) attached to the base frame (24). However, the lower siding material (23) can be constructed without hindrance, and the workability can be improved compared to the case where the upper and lower siding materials (22) and (23) are attached on site.
[0016]
(50) is a draining material attached to the outer surface of the lower siding material (23) along the horizontal direction. As shown in FIGS. 5 and 6, the draining material (50) includes a rail (51), a bracket (52), and a cover (53). The rail (51) and the bracket (52) are overlapped and fixed to the upper end of the outer surface of the lower siding material (23) with screws (55), (55), and the cover (53) 52) is engaged and supported to cover the rail (51).
[0017]
The rail (51) is a long member having the same cross section in the longitudinal direction, and substantially L-shaped engagement pieces (61) (61) are projected from the upper and lower ends of the board piece (60). A guide groove (62) is formed on the surface side of the substrate piece (60). Further, a plurality of screw insertion holes (63), (63), ... are formed in the substrate piece (60) at intervals in the longitudinal direction, and further on the back side of the substrate piece (60) along the longitudinal direction. A recess (64) is formed, and a watertight material (65) is attached over substantially the entire length of the recess (64) in the longitudinal direction. This water-tight material (65) is a substantially prismatic member having a stretch property made of a synthetic rubber-based material based on a polymer such as EPT, such as EPT, or other resin foam, for example. 51) Before being fixed to the lower siding material (23), it protrudes backward from the recess (64).
[0018]
The bracket (52) is a short member having a fixed size, and a pair of elastic pieces (71) (71) extend forward from the upper and lower ends of the rail pressing piece (70). Screw holes (72) (72) are formed in the vicinity of both ends in the longitudinal direction of the rail pressing piece (70). Further, the front end portions of the elastic pieces (71) (71) are bent in a square shape. This bracket (52) can be slid in the horizontal direction without falling off while being held by the rail (51) by fitting the rail holding piece (70) into the guide groove (62) of the rail (51). It has become. Accordingly, by sliding the bracket (52), the bracket (52) can be easily and reliably overlapped with the abutting portion of the adjacent rails (51) (51).
[0019]
The cover (53) is a long member having the same cross section in the longitudinal direction, and a pair of latching pieces (81) (81) are extended rearward from the upper and lower ends of the decorative piece (80). Further, the upper end portion of the rising piece (82) rising from the decorative piece (80) is bent substantially horizontally horizontally rearward, that is, inward, to constitute the seal receiving piece (83).
[0020]
Here, the construction of the above draining material (50) will be described.First, the rail (51) is pressed on the lower side so as to hold the waterproof sheet (33) and the soft piece (43) of the discarded draining material (40). Screw along the upper end of the siding material (23) and screw the screw (55) such as a tapping screw inserted into the screw insertion hole (63) into the lower siding material (23) to lower the rail (51). Attach to side siding material (23). This procedure is repeated, and rails (51) (51) are attached over the entire circumference of the outer wall (21). At this time, at the abutting portion between the ends of the adjacent rails (51) and (51), the rail pressing piece of the bracket (52) (62) straddles the guide grooves (62) and (62) of the rails (51) and (51). 70) and insert bracket (52). Then, screw (55) (55) inserted into the screw insertion holes (63) (63) and screw holes (72) (72) matched to each other, screwed into the lower siding material (23), bracket (52) And the rails (51) (51) are fixed together on the lower siding material (23).
[0021]
Therefore, the adjacent rails (51) and (51) are connected by aligning the ends of the rails (51) and (51) with the bracket (52) and aligning the ends on the same straight line. Also, by fixing the rails (51) (51) to the lower siding material (23), the watertight material (65) is compressed through the soft piece (43) of the draining water drainage material (40). Pressing the waterproof sheet (33), this ensures that the gap between the board piece (60) of the rail (51) and the waterproof sheet (33) is filled, and the screws (55) (55) ... Inundation is prevented.
[0022]
After mounting the rails (51) (51) ... and the brackets (52) (52) ... to the lower siding material (23) in this way, the cover (53) ( 53) is pushed in from the front, and the latching pieces (81) (81) are engaged with the elastic pieces (71) (71) of the bracket (52) from the outside, so that the cover (53) (53) ... Are attached to the brackets (52), (52). At this time, the butted portion where the ends of the adjacent covers (53) and (53) are in contact with each other is also positioned at the approximate center of the bracket (52). Then, like the adjacent rails (51) (51), the ends of the covers (53) (53) are also aligned on the same straight line. The covers (53), (53), etc. thus mounted cover the heads of the rails (51), (51), the brackets (52), (52), and the screws (55), (55).
[0023]
Further, as shown in FIG. 7, when the covers (53) (53) are mounted, the seal receiving piece (83) enters the gap (27) between the upper and lower siding members (22) (23) from the outside. The seal material (86) is sufficiently bonded between the upper surface of the seal receiving piece (83) and the lower end surface of the upper siding material (22) via the backup material (85). Fill in the secured state. Accordingly, the boundary between the upper and lower siding materials (22) and (23) is subjected to double water stop treatment by the sealing material (86) and the draining water draining material (40) inside thereof.
[0024]
In addition, this invention is not limited to the said embodiment, Of course, many corrections and changes can be added to the said embodiment within the scope of this invention. For example, in the above embodiment, the outer wall on the peripheral edge of the balcony floor has been described as an example. However, the waterproof structure of the present invention may be applied to an outer wall that rises from the peripheral edge of the ceiling floor and other outer walls.
[0025]
【The invention's effect】
As is clear from the above description, in the waterproof structure of the present invention, the seal receiving piece of the draining material attached to the outer surface of the lower outer wall portion is inserted from the outside into the gap between the upper and lower outer wall portions, and this seal Since the sealing material is filled between the upper surface of the receiving piece and the lower end surface of the upper outer wall portion, it is possible to sufficiently secure the bonding margin of the sealing material to the lower end surface of the upper outer wall portion. Water can be reliably stopped between the lower outer wall portion and the waterproof performance can be improved.
[0026]
In addition, the discarded water draining material provided on the inner side of the sealing material can double the water gap to further improve the waterproof performance.
[0027]
Furthermore, by using the hard piece of discarded water draining material as a fire protection plate, it is not necessary to take a new fire prevention measure, and the number of parts can be reduced and the construction can be simplified.
[0028]
Furthermore, a portion extending from the upper end surface of the lower outer wall portion to the outer surface of the discarded water draining material is a soft piece having flexibility, so that the discarded water draining material is attached after the upper outer wall portion is attached, and the soft piece. It is possible to carry out construction such as turning up the lower outer wall and sticking the lower outer wall part to the work site with the upper outer wall part attached to the base frame etc. in advance in a factory etc. The workability can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of a waterproof structure according to an embodiment of the present invention.
FIG. 2 is a perspective view of a discarded drainer.
FIG. 3 is a perspective view showing a state in which a soft piece of discarded water draining material is turned up.
FIG. 4 is a view showing waterproofing construction on the lower siding material side.
FIG. 5 is an exploded cross-sectional view of a draining material.
FIG. 6 is an exploded perspective view of a draining material.
FIG. 7 is a cross-sectional view of a main part of a waterproof structure.
FIG. 8 is a cross-sectional view of a conventional waterproof structure.
[Explanation of symbols]
(22) Upper outer wall (upper siding material)
(23) Lower outer wall (lower siding material)
(27) Clearance
(40) Draining material
(41) Hard piece
(43) Soft piece
(50) Drainage material
(51) Rail
(52) Bracket
(53) Cover
(82) Rising piece
(83) Seal receiving piece
(86) Seal material

Claims (2)

A gap is provided between the lower end of the upper outer wall portion and the upper end of the lower outer wall portion, and an inward seal receiving piece of a draining material attached to the outer surface of the lower outer wall portion enters the gap, and this seal Between the upper surface of the receiving piece and the lower end surface of the upper outer wall portion is a waterproof structure of the outer wall that is filled with a sealing material, and is provided with a draining material that closes the gap inside the sealing material, The draining material is attached to the hard piece extending from the inner surface of the upper outer wall portion to the upper end surface of the lower outer wall portion, and attached to the hard piece, and extends from the upper end surface of the lower outer wall portion to the outer surface. A waterproof structure for an outer wall , comprising a soft piece having flexibility, wherein the hard piece is also used as a fireproof plate .   The draining material includes a rail fixed to the outer surface of the lower outer wall portion and a cover attached to the rail directly or via a bracket, and the upper end of the rising piece of the cover is bent substantially horizontally to The waterproof structure of the outer wall according to claim 1, wherein the seal receiving piece is configured.

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