JP2604918Y2 - Roof drain - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof drain provided for draining rainwater from a building roof or a veranda, and more particularly to a roof drain formed by using a stainless steel plate.

[0002]

2. Description of the Related Art Conventionally, products made of cast iron having good corrosion resistance have been widely used, but recently, they have corrosion resistance, cosmetic properties, are lightweight, and are easy to handle. Products made by assembling a stainless steel plate by stamping and forming have been widely used and used. Numerous proposals have been made regarding a roof drain formed by stamping and forming a stainless steel plate.
9. Japanese Utility Model Application 58-25004, Japanese Utility Model Application 58-4073
5, Japanese Utility Model Application No. 58-43400, Japanese Utility Model Application No. 1-336345,
It has been proposed in Japanese Utility Model Application No. 5-59184.

[0003] By the way, waterproofing is performed on the roof of a building or on a slab of a veranda, and various methods are used for this waterproofing, such as a method of directly finishing with a waterproof mortar, a method of waterproofing with a waterproof paint. And a method in which a waterproof sheet such as an asphalt sheet is coated on the slab surface using asphalt or waterproof paint, and then the surface is finished with mortar or asphalt. Therefore,
When a waterproof sheet is used, the waterproof sheet is covered up to the inclined portion of the body to seal between the main body and the slab of the roof drain, so that the waterproof sheet is pressed to the body by an annular sheet retainer. . When using waterproof mortar or waterproof paint, the sheet press is not required. In any case, the mortar or the waterproof mortar is installed so as to cover a part of the roof drain body or the sheet retainer. Therefore, a mortar stopper is provided on the main body or the sheet retainer so that the mortar does not flow into the inside. Is common.

[0004]

[Problems to be Solved by the Invention] Roof drains formed by stamping and forming a stainless steel plate are manufactured and provided according to the purpose of use, and the number of assembled parts increases, so that each part can be used in common. Although many proposals have been made, assembling was troublesome and did not necessarily result in cost reduction. Accordingly, the applicant of the present application has filed Japanese Utility Model Application No. 5-5.
No. 9184 proposes a method of forming a mortar stop by bending a roof drain body or a sheet retainer at the outer peripheral surface toward the surface side. An object of the present invention is to reduce the number of parts and reduce the cost in a roof drain formed from a stainless steel plate.

[0005]

According to the present invention, the mortar stopper is conventionally punched and formed separately and welded to the roof drain body or the sheet retainer. However, the mortar stopper is integrally formed at the time of punching the main body or the sheet retainer. In consideration of this, it was proposed to bend to the surface side at the outer peripheral edge as described above, but as a result of further study, the part to be attached to the inclined part of the main body or the main body inclined part of the sheet holder via the waterproof sheet In addition, the ridges in the shape of a semi-cylindrical shape are raised in an annular shape at an interval to form a mortar stop, or bent to form an annular double wall, and the V-shaped ridges are formed at regular intervals.
By providing the letter-shaped cut, a mortar stopper is formed to achieve the purpose.

The mortar stopper, which is formed in a ring shape and has annular protrusions at intervals, may be extruded by press molding at the time of punching and molding of the main body or the sheet retainer, so as to form a double wall. The mortar stopper which is bent upward and formed is formed by punching a cut portion in advance into a shape such as a rhombus or an ellipse and bending the cut portion so as to be bent at a central portion thereof, thereby facilitating molding.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to the embodiments shown in the drawings.

Embodiment 1 The embodiment shown in FIGS. 1 and 2 is a roof drain used for forming a waterproof layer directly on the surface of a slab such as a roof or a veranda with a waterproof mortar or a waterproof paint. (1) and a strainer (3), the main body (1) is formed with a shallow inclined portion (8) toward the center from the outer peripheral edge (7), and a cylinder having a drain opening (10) connected to the central opening. The strainer (3) has a hat shape provided with through holes in the side wall surface and the top plate, and the main body (1) and the strainer (3) have a main body (1). ) Are connected by a bolt (11) and a nut (12).

When molding the main body (1), the inclined portion (8)
The mortar stoppers (4), (4),... Are integrally formed by extrusion molding. The mortar stopper (4) is formed by extruding a semi-cylindrical ridge, and is inclined inward so that the outer peripheral edge (7) of the semi-cylindrical ridge is vertical or nearly vertical. It is good to mold so that.

[0009]

Embodiment 2 In the embodiment shown in FIGS. 3 and 4, an asphalt sheet or other waterproof sheet (17) is adhered to the surface of a slab (15) such as a roof or a veranda by asphalt or the like to form a waterproof layer. The surface of the funnel-shaped body (1) and the strainer (3) are covered with a waterproof sheet (17) with roof drain, which is used when finishing the surface with a mortar (18) or the like.
When covering up to the inclined part (8) of (1), the inclined part of the main body (1)
Annular plate-shaped sheet retainer for crimping and fixing to (8)
(2), and the main body (1) and the sheet presser (2) are composed of the main body (1).
Bolt (13) and nut (14) raised on the
(2) and strainer (3) are bolts raised on the sheet presser (2)
(11) and the nut (12) are connected and fixed.

[0010] At a substantially central portion of a portion to be attached to the inclined portion (8) of the main body (1) of the sheet presser (2) via the waterproof sheet, a ridge having a semi-cylindrical shape is annularly raised at intervals. The mortar stoppers (4), (4)... Are formed. The mortar stopper (4) is formed by extruding a semi-cylindrical ridge, and is inclined inward so that the outer peripheral edge (7) of the semi-cylindrical ridge is vertical or nearly vertical. It is good to mold so that.

[0011]

Embodiment 3 In a roof drain composed of a main body (1) and a strainer (3) shown in FIGS. 1 and 2, an annular portion is formed almost at the center of an inclined portion (8) of the main body (1) as shown in FIG. 2
Are bent so as to form a heavy wall, and V-shaped cuts (6), (6)... Are formed at regular intervals to form mortar stops (4), (4). In addition, 2
The heavy wall may be bent so that the lower side of the wall is in close contact, or may be bent in a triangular shape without separating the lower side, and when the main body (1) is stamped and formed, almost the inclined portion (8) is formed. It is preferable that a cut portion is previously punched into a shape such as a rhombus or an ellipse so as to form an annular shape with an interval at a center portion, and a bent mortar stop (4) is formed so as to be bent at the center portion. It is desirable that the section of (6) be welded or sealed with a silicone resin or the like.

[0012]

Embodiment 4 In a roof drain comprising a main body (1), a sheet holder (2) and a strainer (3) shown in FIGS. 3 and 4, the sheet holder (2) as shown in FIG.
The main body (1) is bent so as to form an annular double wall at a substantially central portion of a portion to be attached to the inclined portion (8) of the main body (1) via a waterproof sheet, and the formed annular walls are spaced at regular intervals. V-shaped cuts (6), (6) ... are provided and mortar stops (4),
(4) ... is formed. Example 3
The cut (6) may be formed by forming a through hole and bending it in the same manner as described above, and the double wall may be formed so that the bottom is separated and the cross-sectional shape is triangular.

[0013]

[Effects of the Invention] As described above, the present invention integrates the mortar stopper when the main body or the sheet retainer is molded. Therefore, the mortar stopper is separately formed by punching, and time and labor such as welding at a predetermined position are omitted. Cost reduction can be expected. By keeping the position of the mortar retainer formed on the main body or the sheet retainer constant, the strainer can be shared.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a roof drain including a main body and a strainer.

FIG. 2 is a sectional view showing an installation state of the embodiment of FIG. 1;

FIG. 3 is an exploded perspective view of a roof drain including a main body, a sheet retainer, and a strainer.

FIG. 4 is a sectional view showing an installation state of the embodiment in FIG. 3;

FIG. 5 is a perspective view of a main body of another embodiment.

FIG. 6 is a perspective view of a sheet press according to another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Sheet presser 3 Strainer 4 Mortar stop 5 Interval 6 Cut 7 Outer peripheral edge 8 Inclined part 9 Connecting part

Claims (4)

(57) [Scope of request for utility model registration] 1. A connecting portion (9) formed by using a stainless steel plate and having a dish-shaped inclined portion (8) which is shallower inward than the outer peripheral edge (7) and a drain opening is connected to a central opening. ) And a hat-shaped strainer (3) having through-holes in the side wall surface and the top plate, when the main body (1) is molded. A roof drain in which mortar stoppers (4), (4)... Are formed by protruding in a ring shape at intervals approximately in the center of the inclined portion (8). 2. Molded using a stainless steel plate,
A dish-shaped inclined portion (8) shallower inward than the outer peripheral edge (7)
And a funnel-shaped body (1) having a connecting portion (9) to which a drain pipe is connected to a central opening, and an inclined portion (8) of the body (1).
When forming the sheet retainer (2) in a roof drain comprising a ring-shaped sheet retainer (2) to be adhered to a hat and a hat-shaped strainer (3) provided with through holes in the side wall surface and the top plate, Body (1) of presser (2)
The mortar stoppers (4), (4), etc. are formed by arranging annular ridges at intervals approximately at the center of the portion to be attached to the inclined portion (8) via the waterproof sheet at intervals. Roof drain which is at least done. 3. A roof drain comprising the main body (1) and the strainer (3) according to claim 1, wherein the main body (1)
The V-shaped cuts (6), (6),... Are provided at regular intervals in an annular wall formed by bending an annular double wall at a substantially central portion of the inclined portion (8). (4) A roof drain formed by forming (4). 4. A roof drain comprising the main body (1), the sheet retainer (2) and the strainer (3) according to claim 2, wherein the inclined part (8) of the main body (1) of the sheet retainer (2) is waterproof. A V-shaped notch (6) formed at regular intervals in an annular wall formed by bending an annular double wall at a substantially central portion of a portion to be attached via the sheet;
(6) A roof drain provided with mortar stoppers (4) and (4).