JPH0160621B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to an improvement in a roof drain that is installed at a corner of a building's roof and guides rainwater and the like to a drain pipe that penetrates a side wall.

(Prior Art) The structure of a conventional roof drain is shown in FIGS. 8 and 9, and the conventional roof drain will be explained below based on these drawings.

The roof drain is composed of a drain main body 84 and a waterproof layer pressing plate 88. Drain body 84
As shown in FIG. 9, it is made up of a horizontal piece 84b and a vertical piece 84c, and a drain port is provided near the intersection of the horizontal piece 84b and a vertical piece 84c, and a drain pipe 84a is provided on the back side of this drain port as shown in FIG. are installed in one piece. This drain main body 84 is fixed to a corner of a roof 98 of a building and a side wall 100 rising from the roof. As shown in FIG. 8, a waterproof layer 86 is applied from above so as to cover the drain body 84 as well.
That is, the roof waterproof layer 86b covers the horizontal piece 84b of the drain body, and the side wall waterproof layer 86c covers the vertical piece 84c of the drain body. The reason why the waterproof layer 86 is provided so as to cover the drain body 84 is to prevent rainwater from leaking from around the roof drain.

Usually, the drain main body 84 is made of metal, and the waterproof layer 86 is made of asphalt sheet or the like. Therefore, the adhesion between the two is generally not very strong, and if left for a long time, the adhesion between the two may peel off, and rainwater or the like may leak from this gap.
Therefore, a waterproof layer holding plate 88 is usually attached on top of the waterproof layer. This waterproof layer holding plate 88 must be attached to the drain body in a strong and intimate manner. For this purpose, two bolts 90a, 90b are attached to the drain body 84 as best shown in FIG.
Correspondingly, the waterproof layer holding plate 88 is provided with two holes 98a, 98b having a size and a positional relationship that allow the bolts 90a, 90b to pass through, and the holes 98a, 98b are strongly tightened from above with nuts 92b. Close contact between the two is maintained. As a result, waterproof layer 8
6 is held between the drain main body 84 and the waterproof layer holding plate 88 to prevent peeling and to prevent water from leaking from the periphery of the roof drain.

Note that a strainer 94 for removing dust is usually covered on top of the above structure.

(Problems to be Solved by the Invention) According to the above-mentioned conventional roof drain, if the bolts 90a, 90b or nuts 92b are exposed to rainwater etc. for a long period of time, corrosion is inevitable, and as a result, the waterproof layer retaining plate 88 The pressing force against the drain main body 84 becomes weaker. Therefore, the waterproof layer 86 is likely to peel off from the drain body 84, and rainwater or the like may easily leak through this gap. When this water leak starts, the bolts 90a and 90b are attached to the drain body 84.
Since the drain main body 84 must be replaced and repaired, the waterproof layer 86 must also be removed, which is a major construction work.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a roof drain that can be repaired extremely easily.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention provides a system for guiding rainwater, etc. to a drain pipe by being installed at a corner of a rooftop surface and a side wall rising from the rooftop surface. A roof drain comprising: a piece placed in contact with the roof surface and a side wall; and a drain main body comprising a drain pipe penetrating the side wall and covered with a waterproof layer laid on the roof surface and the side wall. , consisting of a waterproof layer holding plate facing both pieces of the drain main body from above the waterproof layer, and a strainer positioned on the waterproof layer holding plate, and a locking piece on the inner surface of the drain pipe of the drain main body. An anchor piece having an insertion hole formed at its tip is removably locked to this locking piece, and the tip of the anchor piece is brought close to the back side of the waterproof layer holding plate and the same The gist is that a screw member inserted into the insertion hole from one side of the anchor is inserted through the waterproof layer holding plate and the waterproof layer holding plate is tightened and fixed to the drain body.

(Function) According to the above structure, since the waterproof layer holding plate is tightened and fixed to the drain body by the removable anchor piece and the screw member, the holding force of the waterproof layer holding plate against the drain body is weak. If this is to be repaired, the anchor piece and screw member can be simply replaced.

(Example) The first example of the present invention is shown in FIGS. 1, 2, and 3.
6, and will be specifically described below based on these drawings.

As with the conventional drain body 4, a horizontally extending piece 4b and a vertically extending piece 4c form a substantially L-shape, and a drain pipe 4a is integrated on the back side of a drain opening drilled near this bent part. is fixed to. This drain pipe 4a has a sufficient length to penetrate the side wall of the building.

As shown in FIG.
The two block-shaped locking pieces 24e, 24f are inclined surfaces with respect to the upper surfaces 24a, 24b.
4b is fixed to the inner upper surface of the drain pipe 4a as shown in FIG. The anchor piece 20 has its base approximately at T as shown in FIG. 2b.
It is formed into a letter shape with a tip bent obliquely, and one side 20a of the base thereof is connected to the locking piece 24.
e and 24f, which are opposite to the oblique side surfaces 24c and 24d, and an insertion hole 21 is provided through the tip of the oblique portion. This anchor piece 20 consists of two locking pieces 24e and 2 fixed to the drain pipe 4a in a positional relationship as shown in FIG. 2c.
4f, and the locked state is as shown in FIG.
Side surfaces 24c and 24d formed as slanted surfaces of e and 24f
and the side surface 2 formed with the sloped surface of the base of the anchor piece 20
0a), and the anchor piece 20 is firmly locked without wobbling.

The waterproof layer holding plate 8 is formed by bending into a substantially L-shape from a horizontal piece 8b and a vertical piece 8c, similar to the conventional one, and a square hole 8d is provided in the almost central part, spanning the horizontal piece 8b and the vertical piece 8c. It is formed.

In this embodiment, the waterproof layer holding plate 8 is attached to the drain body 4 as shown in FIG. In other words, as shown in Fig. 1, as before,
First, the drain main body 4 is fixed to a corner of the roof of a building. A waterproof layer 6 is applied over this. This waterproof layer 6 is applied so as to also cover the vertical piece 4b and the horizontal piece 4c of the drain main body 4 by means of the rooftop waterproof layer 6b and the side wall waterproof layer 6c. A waterproof layer pressing plate 8 is attached to the waterproof layer 6 using a substantially H-shaped pressure bonding member 10. That is, as shown in FIGS. 1 and 6, the anchor piece 20
is locked as described above, and the screw 14 is inserted into the insertion hole 21 in the slanted surface of the distal end of the anchor piece 20. Then, a substantially H-shaped crimping member 10 is inserted into the screw 14 through a hole 11 formed in the center, and then tightened with a wing screw 18 from above. With this structure, the waterproof layer pressing plate 8 is strongly tightened and fixed to the drain main body 4 by the pressure bonding member 10. Incidentally, since the anchor piece 20 is firmly fixed to prevent it from wobbling, this installation work can be easily done.

Further, in this embodiment, a strainer 12 for dust prevention is attached to the outside of the crimp member 10, and this strainer 12 is attached to the screw 1 by a thumbscrew 16 like the crimp member 10.
It is fixed at 4.

According to the above structure, the drain main body 4 and the waterproof layer holding plate 8 are connected to each other by a removable third connecting member, that is, the anchor piece 20, the screw 14, and the thumbscrew 18.
Even if these parts are exposed to wind and rain for many years and become corroded,
By simply replacing these members, the waterproof layer pressing plate 8 can be firmly pressed and fixed to the drain body 4 again. This greatly simplifies repair work and substantially extends the service life of the roof drain.

In the drain of this embodiment, the drain pipe 4a has a sufficient length to penetrate the side wall 2. Therefore, in the conventional drain, the length of the drain pipe is insufficient, and as shown in FIG.
Since the joints are jointed together, there is a drawback that water leaks at the joints, but this problem is prevented in the drain of this embodiment.

Note that the method of fixing the anchor pieces is not limited to the above-mentioned method; for example, as shown in FIGS. 4 a to d and FIG. shape, and its upper surfaces 44a, 44
The step portions 44c and 44d connected to
A, 44b are fixed in abutting state, and an anchor piece 40 configured in the same manner as in the previous example is locked thereon using one side surface 40a of the base, which is a slanted surface, in the same manner as in the previous example; As shown in FIGS. 10a to 10c, the anchor piece 40' is formed wide and engages with the engagement pieces 24e and 24f similarly to the first embodiment in which engagement notches are provided on both sides of the anchor piece 40'. Various structures are possible, such as a structure that stops.

Next, a second embodiment will be explained with reference to FIG.

This example is an embodiment in which the crimp member 10 of the first example is eliminated, and in this example, a predetermined interval is placed on both inner sides of the drain pipe 76 of the drain main body 75, which is formed almost similarly to the previous example. Pairs of locking pieces 74a, 74b, 74c, and 74d are fixed facing each other. On the other hand, anchor pieces 70a and 70b formed in a substantially hook shape are removably locked, and insertion holes 71a and 71b are formed through the bent ends of the anchor pieces 70a and 70b.
A waterproof layer pressing plate 79 is fixed to the anchor pieces 70a, 70b. That is, the waterproof layer holding plate 79 is formed into a substantially L-shape, and two holes 76a and 76b are penetrated through its vertical piece, and when it is installed, it is positioned above the waterproof layer as in the previous example. At the same time, the holes 76a and 76b are inserted into the insertion holes 71a and 71 of the anchor pieces 70a and 70b.
The anchor pieces 70 are directly screwed with nuts 78a and 78b by screws 72a and 72b inserted from the anchor pieces 70a and 70b in alignment with b.
a, 70b, and the rest of the configuration is the same as the previous example, so a description thereof will be omitted.
Therefore, according to this embodiment, the crimping member 10 in the first embodiment is not required, and the associated work can be saved, and the rest is the same as in the first embodiment. It is something that enjoys the action and effect.

(Effects of the Invention) As described above, the present invention secures the waterproof layer holding plate to the drain main body by tightening it with an anchor piece that is removably locked to a locking piece that is fixed to the inner surface of the drain pipe of the drain main body. Therefore, even if the anchor pieces and screw members between the two become loose due to corrosion and water leaks from around the roof drain, it is possible to replace and repair only the anchor pieces and screw members, etc., and the problem will be resolved. can be easily accommodated. This can significantly improve the lifespan of the roof drain. Furthermore, this mounting structure is extremely simple and stable, and the installation work is also extremely easy, making it possible to make the roof drain highly useful.

[Brief explanation of drawings]

1 to 6 show a first embodiment of the present invention,
Figure 1 is a sectional view showing the roof drain installed on the roof, Figure 2a is a perspective view of the locking piece, Figure 2b is a perspective view of the anchor piece, and Figure 2c is the locking piece. FIG. 3 is a perspective view showing the relationship between the locking piece and the anchor piece, and FIG.
A cross-sectional view corresponding to the - line cross section in Figure c, Figure 4a
is a perspective view showing another locking piece, FIG. 4b is a perspective view showing the anchor piece, FIG. 4c is a perspective view showing the relationship between the locking piece and the anchor piece, and FIG. FIG. 6 is an exploded perspective view showing the assembly structure of the roof drain, and FIG. 7 is a sectional view corresponding to the - line section in FIG. FIG. 8 is a cross-sectional view showing the installed state of a conventional roof drain, FIG. 9 is a perspective view showing the conventional drain main body and waterproof layer holding plate, and FIG. 10a shows a locking piece. Figure 10b is a perspective view of another anchor piece, Figure 10b.
FIG. c is a perspective view showing the relationship between the locking piece and the anchor piece. 4, 75...Drain body, 4a, 75a...Drain pipe, 6...Waterproof layer, 8,79...Waterproof layer press plate, 2
0, 70a, 70b...Anchor piece, 24e, 24
f, 70a-d...locking piece, 14, 72a, 72b
…screw.

Claims (1)

[Claims] 1. A roof drain installed at the corner of a rooftop surface and a side wall rising from the rooftop surface to guide rainwater, etc. to a drain pipe, which includes a piece located in contact with the rooftop surface and the side wall; A drain main body including a drain pipe penetrating the side wall and covered with a waterproof layer laid on the roof surface and the side wall, and a waterproof layer pressing plate facing both pieces of the drain main body from above the waterproof layer. and a strainer positioned on the waterproof layer holding plate, a locking piece is fixed to the inner surface of the drain pipe of the drain body, and an insertion hole is formed at the tip of the anchor for the locking piece. The anchor piece is removably locked, the tip of the anchor piece is brought close to the back side of the waterproof layer holding plate, and a screw member inserted into the insertion hole is inserted into the waterproof layer holding plate from one side of the anchor. A roof drain characterized in that the waterproof layer pressing plate is fastened and fixed to the drain main body.