JPH0430257Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a roof drain installed in a drainage hole of a floor plate formed of ALC plate of a building or other building.

``Prior art'' Conventionally, this type of roof drain has a roof drain body that is installed in a drainage hole in a floor plate made of ALC plate, and is formed into a funnel shape by casting, and this roof drain body is attached to the lower surface of the tapered part of the roof drain body. The ALC plate was fixed in place by attaching bolts to the bolt holes provided in the plate through clamp rings that were placed in contact with the bottom surface of the ALC plate.

However, since the roof drain body made of cast metal is thick, in order to install it in the drain hole so that it does not protrude above the top surface of the floorboard, the reinforcing bars of the ALC plate that forms the floorboard must be cut and installed. First, there was a drawback that the installation work was difficult.

In addition, when fixing the roof drain body with bolts from the bottom side of the floorboard, workers are required above and below the floorboard, and scaffolding must be provided especially at the bottom, making it difficult to install. This method not only takes time and is expensive, but also has the disadvantage of being unsightly because the bolts and crack rings are visible from the underside of the floorboard.

``Purpose of the present invention'' In view of the above-mentioned conventional drawbacks, the present invention aims to reduce costs by allowing one person to install the roof drain body without cutting the reinforcing bars of the ALC plate. To obtain a roof drain in which fixing tools such as bolts are not visible from the side or top.

"Means for Achieving the Object of the Present Invention" The present invention provides a roof drain having a funnel-shaped roof drain body made of a metal material that is installed in a drain hole of a floor plate formed of an ALC plate of a building. A funnel-shaped roof drain body with a gently tapered top that can be installed without cutting the reinforcing bars of the plate, a ring-shaped outer circumference formed by bending the upper outer circumference of the roof drain body downward, and this ring. It is characterized by comprising a fixing piece that can be fixed to the floor surface with a fixing tool such as a bolt that protrudes outward from the lower end of the outer peripheral part of the shape.

``Embodiment of the present invention'' In the embodiments shown in Figures 1 to 4, 1 is a floor plate installed in a building such as a building, and this floor plate 1 has a large number of panels arranged at predetermined intervals vertically and horizontally inside the upper and lower surfaces. It is made of ALC plate with embedded reinforcing bars 2.

Reference numeral 3 denotes a drainage hole provided in the floor plate 1, and this drainage hole 3 is provided vertically penetrating approximately in the center between the reinforcing bars 2.

Further, an installation recess 4 is formed on the upper side of the opening of the drain hole 3 so that a roof drain body, which will be described later, can be installed without protruding from the floor surface.

Reference numeral 5 denotes a synthetic resin vertical gutter whose upper end is inserted into the drainage hole 3.

Reference numeral 6 denotes a roof drain of the present invention installed in the drainage hole 3, and the roof drain 6 has a gently tapered upper part so that it can be installed in the drainage hole 3 without cutting the reinforcing bars 2 of the ALC plate that forms the floorboard 1. The roof drain main body 7 is constructed of a funnel-shaped roof drain body 7 made of a metal plate such as stainless steel, and a strainer 11 that prevents dirt from entering the drainage hole 3 provided in the roof drain.

The roof drain main body 7 has a cylindrical portion 7a on the lower side.
is formed into a tapered shape with a slightly smaller diameter on the lower side, and is formed to be inserted into the vertical gutter 5, and is formed with a gently tapered portion 7b on the upper side, and this roof drain body 7C. Attachment pieces 13 each provided with a screw 12 for tightening and fixing the strainer 11 provided at three equal positions on a concentric circle in the middle part of the upper surface, and a ring shape formed by bending downward from the upper outer circumferential part of the roof drain body 7C. and a bolt insertion hole 9 that can be fixed to the floor material 1 with three anchor bolts 8 as fixing devices projecting outward from the lower end of the ring-shaped outer circumference 7d. It is composed of three fixing pieces 10.

The strainer 11 has a large number of slots 1 on its circumferential side.
4, and the mounting piece 13 is provided with a notch 16 into which the mounting piece 13, which is integrally molded at the lower end of the cover body 15, is fitted. Flange-shaped base plate 17 fixed by provided screws 12
It is made up of.

When installing the roof drain 6 having the above-mentioned structure, first, the drain hole 3 is formed in the floor plate 1, and the installation recess 4 is formed on the upper side of the opening. The installation recess 4 is formed at such a depth that the upper end of the roof drain body 7 does not protrude from the floor surface when the roof drain body 7 is inserted, and the reinforcing bars 2 are not exposed.

Thereafter, the roof drain body 7 is inserted into the drain hole 3 from the upper side of the floorboard 1 so that the fixing piece 10 is in contact with the lower surface of the installation recess 4. At this time, the cylindrical portion 7a is positioned at the center of the drain hole 3.

After that, anchor bolts 8 are inserted into the bolt insertion holes 9 of each fixing piece 10 and driven into the floor plate 1 to fix the roof drain body 7 to the floor plate 1,
After completion, the vertical gutter 5 is fitted into the cylindrical portion 7a of the roof drain body 7 from the lower side of the floorboard 1 and inserted into the drain hole 3.

Next, mortar 18 is filled into the installation recess 4 formed above the opening of the drain hole 3 so that the upper surface of the floor plate 1 and the upper end of the roof drain body 7 are flat.
At this time, the mortar 18 is also filled on the lower surface side of the tapered portion 7b of the roof drain body 7 and the gap between the drain hole 3 and the vertical gutter 5.

After that, the strainer 11 is placed on the tapered part 7b of the roof drain main body 7 so that the notch 16 provided in the base plate 17 of the strainer 11 corresponds to the attachment piece 13 provided in the tapered part 7b, and in this state, the strainer 11 is placed. The installation work is completed by turning the screws 13 and tightening and fixing them with the screws 12 of the mounting piece 13.

Even when the roof drain 6 installed in this manner is viewed from the bottom side of the floor plate 1, the mounting bolts and crack rings are not visible as in the conventional case, so it is clearly visible.

Also, when installing the roof drain main body 7 in the drainage hole 3, the ALC reinforcing bars 2 forming the floor plate 1
Since it can be installed without cutting, the installation work is easy.

Note that in this embodiment, the roof drain body 7 was installed first after forming the drainage hole 3, but after the vertical gutter 5 was first inserted and installed in the drainage hole 3, the roof drain body 7 was installed.
You may also set it up.

"Different Embodiments of the Present Invention" Next, different embodiments of the present invention shown in FIGS. 5 to 7 will be described. In the description of this embodiment, the same components as those in the embodiment of the present invention are given the same reference numerals and redundant explanations will be omitted.

The main difference between the embodiment shown in FIG. 7 without FIG. 5 and the embodiment of the present invention is that the fixed piece 10A is formed in the shape of a flange. However, the same effects as in the embodiments of the present invention can be obtained.

"Effects of the Present Invention" As is clear from the above explanation, the present invention has the following effects.

(1) In a roof drain having a funnel-shaped roof drain body made of a metal material, which is installed in a drainage hole in a floorboard formed of an ALC plate of a building, the roof drain body can be installed without cutting the reinforcing bars of the ALC plate. A funnel-shaped roof drain body with a gently tapered upper part, a ring-shaped outer periphery formed by bending downward from the upper outer periphery of the roof drain body, and a ring-shaped outer periphery that protrudes outward from the lower end of the ring-shaped outer periphery. It is constructed with a fixing piece that can be fixed to the floor surface with fixing devices such as bolts, so it can be attached to the drainage hole formed in the floorboard.
It can be installed without cutting the reinforcing bars of the ALC version. Therefore, the installation work of the roof drain body can be easily performed.

(2) A fixing piece is provided on the upper peripheral edge of the roof drain body so that the roof drain body can be fixed to the floor plate from the top side with a fixing device such as a bolt.
By fixing the roof drain body from the top side of the floorboard with fixing tools such as bolts, one person can install the roof drain body.

(3) According to (2) above, the installation work of the roof drain body can be done on the upper surface of the floorboard, so there is no need to prepare scaffolding on the downstairs side as in the past.

(4) According to (2) above, the roof drain body is fixed from the top side of the floorboard with fixing devices such as bolts, so
There are no mounting bolts or clamp rings visible on the underside of the floorboard, unlike in the past. Therefore, it can be made to look clear.

(5) According to (1) and (2) above, the roof drain main body can be easily installed by one person, so it is possible to significantly reduce the cost of installation work.

(6) The fixing piece that is fixed to the floorboard with fixing devices such as bolts is formed to protrude outward from the lower end of the ring-shaped outer periphery, so that the head of the fixing device such as bolts will touch the top of the roof drain body when it is fixed. It can be positioned below the section. Therefore, by filling the recess formed between the upper surface of the ALC floorboard and the upper end of the roof drain body with mortar, it is possible to reliably prevent fixing devices such as seals and bolts from loosening.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a roof drain installed according to an embodiment of the present invention, Fig. 2 is an exploded perspective view of the roof drain, Figs. 3 and 4 are a plan view and front view of the roof drain body, Fig. 5 7 to 7 are explanatory diagrams showing different embodiments of the present invention. 1...Floor plate, 2...Reinforcement bar, 3...Drain hole, 4...
...Installation recess, 5...Vertical gutter, 6...Roof drain,
7...Roof drain body, 8...Anchor bolt, 9...Bolt insertion hole, 10, 10A...Fixing piece, 11...Strainer, 12...Screw, 13...
...Mounting piece, 14...Slot hole, 15...Cover body,
16...notch, 17...base body, 18...mortar.

Claims (1)

[Scope of utility model registration request] In a roof drain having a funnel-shaped roof drain body made of a metal material, which is installed in a drainage hole of a floor plate formed of an ALC plate of a building, the roof drain body has a gentle upper part so that the roof drain body can be installed without cutting the reinforcing bars of the ALC plate. A tapered funnel-shaped roof drain body, a ring-shaped outer circumference formed by bending downward from the upper outer circumference of the roof drain body, and a bolt protruding outward from the lower end of this ring-shaped outer circumference. A roof drain comprising: a fixing piece that can be fixed to the floor surface with a fixing device such as a fixing member such as a fixing member.