JPH0513853Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a horizontal roof drain made of stainless steel plate that is placed at a corner between a horizontal part and a vertical part of a roof, balcony, floor, etc. of a building.

[Prior art] Roof drains, which drain water from roofs, balconies, floors, etc. of buildings, generally have a main body to which a drain pipe is connected to receive water, and a main body that is stacked on top of this main body to hold a waterproof layer under pressure. A frame-shaped waterproof layer presser,
It consists of a strainer installed on top of the waterproof layer to remove dust and the like.

By the way, conventional roof drains are made of cast iron and are heavy and difficult to handle during construction. Also, this cast iron product could crack due to thermal expansion, freezing, etc.

In order to solve this problem, it has been considered to construct the roof drain by press-forming a stainless steel plate. This stainless steel plate has advantages such as being lightweight and easy to handle, does not crack, is highly durable, and has a good appearance. However, such a roof drain made of a stainless steel plate lacks rigidity, and has the problem that when the waterproof layer presser is tightened to the main body with bolts or the like to fix the waterproof layer, the waterproof layer is easily deformed. In particular, so-called horizontal roof drains, which are placed at the corners of the horizontal and vertical parts of a building, have a problem in that they tend to bend at these corners because the main body and waterproof layer retainer are L-shaped. Furthermore, since the stainless steel plate has a smooth surface, the waterproof layer sandwiched between the main body and the waterproof layer presser tends to shift easily.

[Problems to be solved by the invention] The present invention was made based on the above circumstances, and provides a horizontal roof drain made of stainless steel plate that has high rigidity and can reliably maintain a waterproof layer. .

[Means for Solving the Problems and Their Effects] The present invention forms a flat plate-shaped attachment part diagonally to the corner part between the horizontal part and the vertical part of the waterproof layer holder, and Attachment holes for inserting attachment bolts are formed in the section, and the peripheral edge of the waterproof layer presser is bent toward the back side to form a bent edge with a circular cross section. Therefore, this attachment part acts as a barrier between the horizontal part and the vertical part, increasing the rigidity of this corner part, and the above-mentioned bent edge increases the rigidity of the waterproof layer presser as a whole. The folded edges bite into the waterproof layer to prevent the waterproof layer from shifting, thereby ensuring that the waterproof layer can be held securely. Furthermore, since the bent edge is hollow with a circular cross section, it has high rigidity and has a large effect of increasing the rigidity of the entire waterproof layer presser. In addition, since this bent edge has a circular cross section, the sides of the cross section catch on the waterproof layer like jaws, reliably preventing the waterproof layer from shifting, and this cross section also has corner parts. There is no risk of the waterproof layer being cut off from the corners.

[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. This embodiment is a horizontal roof drain, and is composed of a main body 1, a waterproof layer holder 2, and a strainer 3, all of which are press-formed from stainless steel plates.

First, the configuration of the main body 1 described above will be explained. This main body 1 is composed of a horizontal portion 13 arranged along a horizontal portion 8a such as a floor of a building, and a vertical portion 12 arranged along a vertical portion 8b such as a wall of the building. The horizontal portion 13 and the vertical portion 12 are orthogonal to each other, and the main body 1 as a whole has a substantially L-shape. A bent edge 14 is formed at the edge of the horizontal portion by bending the edge upward into an L-shape. This bent edge 14 is connected to the horizontal part 13 and the vertical part 12.
The bent edge 14 extends beyond the corner 15 between the corners 1 and 1.
5 is configured to increase the rigidity. Also,
A rectangular receiving recess 17 is formed in the center of this horizontal portion 13, and a portion between this receiving recess 17 and the periphery is formed as a slope portion 16 that slopes toward this receiving recess 17. . Therefore, the structure is such that rainwater and the like flow down this slope portion 16 and are collected in the receiving recessed portion 17. Also, the vertical part 12
A rectangular receiving recess 20 is also formed in the center of the receiving recess 20, and around the periphery thereof, a sloped surface 19 is formed that slopes toward the receiving recess 20, and furthermore, a planar flange 18 is formed on the outside thereof. . A drainage hole 21 is formed approximately at the center of the receiving recess 20 of this vertical portion 12, and a joint 23 is welded to the back side of this drainage hole 21.

A plurality of beads 24, 25 are formed around the periphery of the receiving recesses 17, 20 of the horizontal portion 13 and the vertical portion 12. Of these beads, the bead 25 formed on the corner portion 15 side is thicker than the other beads 24, and these beads 25 are continuous over the corner portion 15. Therefore, the bead 25 increases the rigidity of the corner portion 15, preventing deformation of the main body 1. Furthermore, because the bead 25 is thicker than the other beads 24, the rigidity of the corner portion 15 is even greater. Furthermore, a drainage gap 27 is formed between the ends of these beads 24, 25.
Rainwater or the like flows through these drainage gaps 27 into the receiving recesses 17, 20, preventing water from accumulating in the beads 24, 25.

In addition, at both corners formed between the receiving recesses 17 and 20 of the horizontal portion 13 and the vertical portion 12,
A platform portion 28 is formed by bulging this portion toward the front side. The top surface of this platform portion 28 is formed into a flat surface, and this top surface is configured to form an angle of 45° with respect to the horizontal portion 13 and the vertical portion 12 described above. Further, the side surfaces of these platform parts 28 are connected to the lower edge of the drainage hole 21 and the horizontal part 13.
The bottom surface of the receiving recess 17 is formed into a smoothly continuous slope shape, and a recess, that is, a corner portion formed by the intersection of three surfaces is not formed in this portion. Nuts 29 are welded to the top surfaces of these base portions 28, respectively, and stud bolts 30 are screwed into each of these nuts 29. These base parts 28 are the receiving recesses 1
Since the bottom surfaces of the corners 7 and 20 are connected diagonally, they act like a thread to further increase the rigidity of this corner portion 15. In addition, the side surfaces of these platform portions 28 are formed in a slope shape that smoothly connects the edge of the drainage hole 21 and the bottom surface of the receiving recess 17.
No corners are formed in this portion, which prevents dirt and the like from accumulating.

Further, the joint 23 welded to the back side of the drain hole 21 is configured as follows. That is,
A rearwardly protruding edge is provided on the back side periphery of the drain hole 21, and a thick cylindrical joint 23 made of stainless steel is fitted onto the outer periphery of this edge. A fitting part 34 whose diameter is enlarged by the thickness of the edge is formed on the inner surface of the front end of the joint 23, and this fitting part fits into the outer peripheral surface of the edge, and the inner periphery of the joint 23. It is configured such that the surface and the inner peripheral surface of the drain hole 21 are flush with each other. This joint 23 and the above-mentioned edge are welded on this inner surface. Further, the inner surface of the rear end side of the joint 23 forms a stepped portion 32 and is enlarged in diameter. A thread is formed in this enlarged diameter portion, and a threaded portion 33 for connecting the drain pipe 5 is formed.

Further, a spacer holding member 35 is attached to the outer periphery of the rear end of this joint. This spacer holding member 35 is press-molded from a stainless steel plate, and has a ring shape, and includes a mounting portion 37 that fits on the outer periphery of the joint 23, and a stepped spacer fitting that fits on the end of the spacer 7. A portion 36 is formed, and a flange portion 38 is further formed on the outside thereof. The end of the spacer 7, which is formed to have a diameter considerably larger than the external shape of the joint 23 of the spacer fitting portion and has a large diameter such that a gap A is formed between the outer peripheral surface of the joint 23 and the outer circumferential surface of the joint 23, is fitted. It is configured to This spacer holding member 35 is attached to the joint 2.
The distal end of the attachment portion 37 is welded to the outer peripheral surface of the joint 23. By providing the spacer holding member 35, a large diameter spacer 7 can be used, so that the work of attaching the drain pipe 5 is facilitated. Also,
This spacer holding member 35 is attached at a position away from the rear end of the joint 23, and since a gap A is formed between the inner surface of the spacer 7 and the outer peripheral surface of the joint 23, this spacer holding member 35 is attached at a position apart from the rear end of the joint 23. Even if concrete invades from between the end of the spacer and the spacer holding member, the concrete will not adhere to the threaded portion 33 of the joint 23.

In addition, band-shaped temporary fixing legs 40 and temporary fixing hinge legs 41 are spot-welded to the back surface of the main body 1, and by welding the tips of these to the reinforcing bars 4, the main body 1 is temporarily fixed. It is configured so that it can be done. The temporary hinge leg 41 has a hinge structure in which a pair of hinge halves 42 and 43 are pivotally connected by a hinge shaft 44, and one hinge half 42 is spot welded to the main body 1. Then, rotate this other hinge half 43 and attach the tip to the reinforcing bar 4.
It is configured to be welded in contact with the Therefore, when the tip of the temporary hinge leg 41 is aligned with the reinforcing bar 4, no unreasonable load is applied to the spot weld between the temporary hinge leg 41 and the main body 1. Furthermore, a slit 45 is formed at the tip of the temporary fixing leg 40 and the temporary fixing hinge leg 41,
Both edges of this slit 45 are welded to the reinforcing bar 4. Furthermore, in the temporary hinge leg 43, one hinge half 42 is made of stainless steel, and the other hinge half 43 is made of iron material, so that it can be easily welded to both the main body 1 and the reinforcing bar 4. It is configured so that it can be done.

Further, the structure of the waterproof layer presser 2 will be explained below.

The waterproof layer presser 2 is press-molded from a stainless steel plate, and has an L-shaped frame shape as a whole. The waterproof layer presser 2 is composed of a horizontal portion 50 and a vertical portion 51. A bent edge 52 is formed around the entire periphery of the horizontal portion 50 and the vertical portion 51. As shown in FIG. 3, this bent edge 52 has a hollow cylindrical shape with a curled edge having a circular cross section.
Furthermore, a first slope part 53 and a second slope part 54 which are inclined inward are formed in the horizontal part 50 and the vertical part 51. In addition, a drainage notch 55 is formed in the front edge and side edge of the horizontal portion 50 to reach the second slope portion 54, and water that has entered between the waterproof layer presser 2 and the waterproof layer 9 is formed. Configured to drain water.

Furthermore, mounting portions 57 are formed at the corner portions 56 between the horizontal portion 50 and the vertical portion 51, respectively. These mounting portions 57 are formed to protrude rearward from this curved corner portion 56, and are formed in a flat plate shape making an angle of approximately 45° with respect to the horizontal portion 50 and vertical portion 51, respectively.
Elongated holes 59 are formed in these attachment parts 57, and when this waterproof layer presser 2 is stacked on the main body 1, the stud bolts 30 of the main body 1 penetrate through these elongated holes 59 and protrude. The waterproof layer presser 2 is attached to the main body 1 by threading nuts 60 onto these stud bolts 30 and tightening them. Further, bracket portions 58 are formed at both upper and lower ends of these mounting portions 57, and both ends of these mounting portions 57 are connected to the horizontal portion 5 through these bracket portions 58.
0 and vertical portion 51, respectively.
Further, these bracket portions 58 are provided parallel to the horizontal portion 50 and the vertical portion 51, and therefore these bracket portions 58 form an angle of 45° with respect to the flat mounting portion 57 described above. Therefore, this bracket part not only connects and reinforces both ends of these mounting parts 57 to the horizontal part 50 and the vertical part 51, but also
Since the bracket part 58 itself forms an angle of 45° with respect to the mounting part 5 as described above,
7 and increases the rigidity of this attachment portion 57. These mounting portions 57 are approximately
45°, the sides of these attachment parts 57 are connected to the corner parts 56, and the sides of these attachment parts 57 are connected to the corner parts 56;
Both ends of the horizontal part 50 are connected to each other via the bracket part 58.
and the horizontal portion 51, these attachment portions 57 act like threads to prevent the waterproof layer presser 2 from bending at the corner portions 56. 2
Increase the rigidity of.

Further, a mounting portion 61 is formed at the center of the upper inner edge of the vertical portion 51, and a mounting screw hole 62 is formed at the center of this mounting portion 61.

Moreover, the above-mentioned strainer 3 is attached on top of this waterproof layer presser 2. This strainer 3
is composed of a triangular side part 71 and a rectangular front part 72, and these side parts 71 and front part 7
Each of the slits 2 has a large number of slits formed in a lattice shape, and is configured to remove dust and the like. Incidentally, drain cutouts 73 are formed at the lower edges of the side surface portion 71 and the front surface portion 72, respectively, so that rainwater or the like does not accumulate in these lower edges. In addition, the above-mentioned front part 72
A recessed part 74 is formed in the upper center of the mounting wall 7 and is recessed toward the back side.
It is configured as 5. A mounting hole 76 is formed in the center of this mounting wall 75. Then, this strainer 3 is fitted onto the waterproof layer holder 2, and the screw 77 is passed through the mounting hole 76 and screwed into the mounting screw hole 62 of the waterproof layer holder 2 to make this strainer 3 waterproof. Fix to layer presser 2.

In one embodiment of the present invention constructed as described above, the main body is first placed in a predetermined position, and the joint 23 and the formwork 6 are
A cylindrical spacer 7 is arranged between the main body 1 and fixed by a temporary fixing mechanism (not shown).
The tips of the temporary fixing legs 40 and the temporary fixing hinge legs 41 are welded to the reinforcing bars 4 to fix the main body. Next, concrete is poured, and a waterproof layer 9 such as asphalt, waterproof sheet, waterproof mortar, etc. is formed on top of the concrete, and this waterproof layer 9 is placed over the peripheral edge of the main body 1.

Next, attach the waterproof layer presser 2 on top of the main body 1, tighten the nut 60 screwed onto the stud bolt 30, and then attach the waterproof layer presser 2 to the main body 1.
The waterproof layer 9 is clamped and fixed between. Then, the above-mentioned strainer 3 is attached on top of this.

When the nut 60 is tightened, a large load is applied to the waterproof layer presser 2, and the corner portion 56 of the waterproof layer presser 2 is easily deformed. However, in the case of the present invention, a reinforcing bent edge is formed at the edge of the waterproof layer holder, and an attachment part 57 is formed at the corner part 56, so that these parts are attached to the horizontal part. 50 and the vertical part 51, the rigidity of this corner part is increased, and the rigidity of the waterproof layer presser 2 as a whole is increased.

Further, since a bent edge is formed on the peripheral edge of the waterproof layer presser, the rigidity of the waterproof layer presser as a whole is further increased.

[Effects of the invention] As mentioned above, in the present invention, the mounting portion is formed at the corner of the waterproof layer holder, so this acts as a thread, reinforcing this corner and increasing the rigidity of the waterproof layer holder. Since a bent edge is formed on the peripheral edge of the waterproof layer presser, the rigidity of the waterproof layer presser as a whole is thereby further increased, and the waterproof layer can be held securely. Further, since this bent edge is hollow with a circular cross section, it has high rigidity and is highly effective in increasing the rigidity of this waterproof layer. Further, this bent edge bites into the waterproof layer to prevent the waterproof layer from shifting, and since the cross section is circular, there are no corners, and the waterproof layer is also prevented from being cut.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of one embodiment of the present invention;
The figure is a vertical cross-sectional view of the spacer and the spacer holding member disassembled, Figure 3 is an enlarged cross-sectional view of the folded edge of the waterproof layer holder, and Figure 4 is the horizontal roof drain of the embodiment installed. FIG. 1... Main body, 2... Waterproof layer presser, 3... Strainer, 14... Bent edge, 15... Corner part,
21...Drain hole, 23...Joint, 24, 25...
Bead, 28... Base part, 30... Stud bolt, 35... Spacer holding member, 40... Temporarily fixing leg, 41... Temporarily fixing hinge leg, 52... Bent edge, 57... Mounting part, 58...bracket section,
60...nut, 74...recess, 77...screw.

Claims (1)

[Scope of utility model registration request] An L-shaped main body consisting of a horizontal part and a vertical part that are orthogonal to each other and formed by press-forming a stainless steel plate, and an L-shaped frame formed by press-forming a stainless steel plate and stacked on the above-mentioned main body. and a waterproof layer presser that presses and holds the waterproof layer, the edge of the waterproof layer presser being bent toward the back side to form a hollow bent edge with a circular cross section; A flat mounting part is formed at the corner between the horizontal part and the vertical part of the layer presser and is arranged diagonally with respect to the horizontal part and the vertical part, and the mounting part is attached to the main body at this mounting part. A horizontal roof drain characterized by having a mounting hole formed into which a bolt for use is inserted.