JPH0111847Y2 - - 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.

[Conventional technology]

Generally, a roof drain, which drains water from the roof, balcony, floor, etc. of a building, is a frame-shaped waterproof structure that has a main body to which a drain pipe is connected to receive water, and a frame-shaped waterproof layer that is stacked on top of the main body and holds the waterproof layer under pressure. Layer presser and
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.

[Problem that the invention attempts to solve]

The present invention was developed 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 problems and their effects]

In the present invention, a bead is formed on the peripheral edge of the main body, and this bead is continuously provided over at least the corner portion between the horizontal part and the vertical part of the main body. Therefore, this bead digs into the waterproof layer and prevents it from shifting, and since this bead is continuous across the corner, it increases the rigidity of this easily deformed corner, and this main body This prevents the deformation of the waterproof layer and further ensures the retention of the waterproof layer.

[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 presser 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 body 1 is composed of a horizontal part 13 disposed along a horizontal part 8a such as a floor of a building, and a vertical part 12 disposed along a vertical part 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 slanted surface 16 an inclined slope 16 is formed 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 on the peripheries of the receiving recesses 17, 20 of the horizontal portion 13 and the vertical portion 12, surrounding them. Among 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 across the corner portion 15. Therefore, the bead 25 increases the rigidity of the corner portion 15 and prevents the main body 1 from deforming. Further, since this bead 25 is thicker than the other beads 24, the rigidity of this corner portion 15 is increased. Also, there is a drainage gap 27 between the ends of these beads 24 and 25.
are formed, and rainwater and the like flow into the receiving recesses 17 and 20 through these drainage gaps 27, thereby preventing water from accumulating in these beads 24 and 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. 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 38 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 outer 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 this spacer holding member 35, a large diameter spacer 7 can be used, so that the work of attaching the drain pipe 5 becomes easy. Also,
This spacer holding member 35 is attached at a position away from the rear end of the joint 23, and a gap A is formed between the inner surface of the spacer 7 and the outer circumferential surface of the joint 23, so that this spacer holding member 35 is attached during concrete pouring. Even if concrete enters between the end of the spacer and the spacer holding member, this intruding 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 side of this main body 1, and by welding the tips of these to the reinforcing bars 4, this 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. Further, 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, which is bent toward the back side, that is, toward the outside. Note that these bent edges are not limited to the above configuration, for example,
As shown in FIG. 3, the edge may be curled toward the back side in an approximately semicircular manner to form a bent edge 52'.
Furthermore, as shown in FIG. 4, a completely circularly curled bent edge 52'' may be formed.
The horizontal portion 50 and the vertical portion 51 are provided with a first slope portion 53 and a second slope portion 54 that slope inward. 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 the shape of a flat plate forming 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 degrees with respect to the mounting part 5 as described above,
7 and increases the rigidity of this attachment portion 57. And these mounting parts 5
7 are arranged at about 45 degrees with respect to the horizontal part 50 and the vertical part 51, the side parts of these mounting parts 57 are connected to the corner part 56, and both ends of these mounting parts 57 are connected to the horizontal part 58 via the bracket part 58. Since these attachment parts 57 are connected to the corner part 50 and the horizontal part 51, they act like a screw to prevent the waterproof layer holder 2 from bending at the corner part 56. The rigidity of the layer presser 2 is increased.

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 the mounting wall 75. Then, this strainer 3 is fitted onto the waterproof layer holder 2, and a 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 thereon, 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.

The bead 24 formed on the main body 1,
25 bites into the waterproof layer 9 and prevents the waterproof layer 9 from shifting. Further, when the nut 60 is tightened, a large load is applied to the main body 1, and the corner portion 15 of the main body 1 is likely to be deformed. However, in the case of the present invention, the bead 25 is
Since the corner portion 15 is continuously formed, the corner portion 15 is reinforced to increase the rigidity of the main body 1.

[Effect of idea]

As mentioned above, the present invention forms a bead on the main body,
In addition, since this bead is provided continuously across the corner, this bead digs into the waterproof layer and prevents it from shifting, and this bead also reinforces the corner and increases rigidity, preventing deformation of the main body. Therefore, this waterproof layer can be held and fixed even more reliably.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of one embodiment of the present invention;
The figure is a longitudinal sectional view, Figures 3 and 4 are sectional views showing different embodiments of the shape of the folded edge of the waterproof layer presser, and Figure 5 is the main body with the spacer and spacer holding member disassembled. FIG. 1...Main body, 2...Waterproof layer presser, 3...Strainer,
14...Bending edge, 15...Corner part, 21...Drain hole, 23...Joint, 24, 25...Bead, 28...Base part, 30...Stud bolt, 35...Spacer holding member, 40...Temporary fixing leg, 41 ...Temporary hinge legs,
52...Bending edge, 57...Attachment part, 58...Bracket part, 60...Nut, 74...Recessed part, 77...Screw.

Claims (1)

[Scope of utility model registration request] An L-shaped main body is formed by press-forming a stainless steel plate and consists of a horizontal part and a vertical part that are perpendicular to each other, and an L-shaped frame is formed by press-forming a stainless steel plate and is overlapped on the above main body to make it waterproof. In the waterproof layer presser that presses and holds the layer, a bead is formed on the periphery of the main body, and the bead is continuous at least at the corner of the horizontal part and the vertical part. Characteristic horizontal roof drain.