JPH07310405A - Water-proof structure of top light - Google Patents

Abstract

PURPOSE:To easily install a throating metal fitting which is installed on the inner side of an area where a pair of mold frames of a top light are butted in longitudinal direction and connected to each other and also connect the air of mold frames without mis-alignment. CONSTITUTION:A throating metal fitting 50 is engaged with lock pieces 21b which are projected to the inner side surface of a pair of mold frames 20 butted in longitudinal direction and connected to each other, respectively, so that they can be moved slidably in longitudinal direction. Also a flange 53 on one side of it is fitted closely to one side of the mold frames 20 and the flange 53 of the other side is fitted closely to the other side of the mold frames 20. Thus, because not only no clearance is produced between the mold frames 20 and the throating metal fitting 50 but also the pair of mold frames 20 are restricted as if they are locked by the throating metal fitting 50, the pair of mold frames 20 can be connected to each other without mis-alignment.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skylight that is installed in an opening provided in a roof of a building or the like to take in sunlight indoors, and more specifically, a portion for connecting the formwork of the skylight in the longitudinal direction. Of waterproof structure.

[0002]

2. Description of the Related Art Conventionally, a skylight installed in an opening provided on a roof of a building or the like for taking in sunlight is widely used. An example of the structure of such a skylight will be described with reference to FIG. 8. In FIG. 8, reference numeral 1 is a daylighting closing plate that closes an opening provided in a roof of a building, and reference numeral 10 is a peripheral edge of the opening. The molds, which are arranged along the same and fixed to a structural member (not shown), are shown.

The mold 10 is manufactured by extrusion molding a light alloy material such as aluminum.
A base portion 11 fixed to the structural member, and a vertical wall portion 12 provided upright from the base portion 11 so as to extend vertically upward.
And a screwing portion 13 extending from the upper end of the vertical wall portion 12 so as to extend in the horizontal direction, and the daylight closing plate 1 is screwed to the screwing portion 13.
And a support portion 14 which is hung from the central portion of the vertical wall portion 12 in the horizontal direction and extends toward the indoor side to support the glass 15 containing the fireproof mesh. The daylight closing plate 1 is formed of a glass plate, an acrylic plate, or the like, and is placed on the packing 2 that is in close contact with the threaded portion 13 of the mold 10, and then the washer 3 and the annular packing. The bolt 5 having the number 4 is inserted into the through hole, the washer 6 is attached to the tip end side of the bolt 5, and the nut 7 is screwed and tightened to be fixed to the mold 10.

By the way, when the opening of the building is made large in order to increase the amount of sunlight taken in from the skylight, it is not possible to deal with it with only one mold 10 molded to a predetermined length. As shown in FIG. 9, it is necessary to connect a plurality of molds 10 by abutting each other in the longitudinal direction. At this time, the pair of molds 10 butted against each other
Between the gaps, a constant gap 16 is opened in anticipation of the amount of the mold 10 expanding due to solar radiation. Therefore, the draining metal fitting 18 having a U-shaped cross section is provided to prevent rainwater from entering the indoor side through the gap 16. The frame 10 is closely attached to the surface on the indoor side, and the frame 10 is arranged so as to extend between the pair of molds 10 and extend along the abutting portion.
It is configured to be fixed by a fixing metal fitting 19 which is locked by an anchor metal fitting attaching piece 11b having an L-shaped cross section which extends from the base portion 11 toward the indoor side. Then, after the fixing of the drainage fitting 18 is completed, caulking agent is injected from the gap 16 to fill the space between the form 10 and the drainage fitting 18, so that rainwater enters from the gap 16 to the indoor side. I try not to.

[0005]

By the way, in order to bring the water draining metal fitting 18 into close contact with the indoor surface of the formwork 10, an anchor metal fitting having an L-shaped cross section extending from the base portion 11 of the formwork 10 to the indoor side is attached. Since it is necessary to cut out the pieces 11a and 11b, there is a problem that the site work becomes complicated and the work efficiency is reduced.

Further, in the conventional waterproof structure in which the draining fitting 18 is fixed by the fixing fitting 19, it is not possible to prevent misalignment between the end faces of the pair of molds 10 that are abutted to each other in the longitudinal direction. Not only was there a step in the connecting portion of the mold 10 to impair the external appearance, but there was a gap between the draining fitting 18 and the mold 10, which sometimes caused rainwater to enter the indoor side.

Further, the conventional draining fitting 18 described above is
Since it is manufactured by press forming a steel plate or an aluminum plate, it is necessary to prepare a press die for each different size and shape of the mold 10, and the draining metal 18 has a high cost for the press die. Therefore, there is a problem that the manufacturing cost cannot be reduced.

Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to reliably prevent rain leakage by fixing the draining metal fitting directly to the frame of the skylight. , A waterproof structure of the skylight that can easily and surely attach the draining metal fittings to the formwork without performing site matching work, and can further facilitate the manufacturing of the draining metal fittings and reduce the manufacturing cost. To provide.

[0009]

The above object of the present invention is to achieve the above object.
On the indoor side of the portion where the pair of molds of the skylight are butted against each other in the longitudinal direction, a trough-shaped draining metal fitting that is arranged so as to be bridged between the pair of molds and extends along the butted portion, A strip-shaped bottom plate extending to face the indoor surface of the form, a pair of side walls standing on both ends in the width direction of the bottom plate and extending toward the surface, and extending from the pair of side walls, respectively. And a draining fitting comprising a pair of flanges that are in close contact with the surface, one flange of the pair of flanges is in close contact with the indoor surface of one of the pair of molds, and the other flange is the other. Is provided so as to be in close contact with the indoor surface of the formwork, and is engaged with a locking piece that is projected on the indoor surface of the formwork and locks the draining metal fitting so as not to separate from the surface. Waterproof structure for skylights characterized by stopping It can be achieved by. Further, it is preferable that the locking piece is integrally extruded in the longitudinal direction of the mold. In addition, it is preferable that the drainage fitting is provided with a notch that slidably engages with the locking piece in the longitudinal direction of the mold. Further, the draining metal fitting extends in a strip shape, a pair of side walls erected at both end portions in the width direction of the bottom plate, and extends in parallel to the bottom plate from respective tip portions of the pair of side walls. It is preferably manufactured from an extruded blank with a pair of flanges extending over. Further, it is preferable that a convex portion extending in the longitudinal direction of the bottom plate be provided on the surface of the bottom plate on the mold frame side.

[0010]

In the waterproof structure of the skylight of the present invention, the draining metal fitting is locked by the locking piece provided on the mold and directly fixed to the mold, so that the water draining fitting can be easily and securely attached to the mold. Can be fixed to. Further, since the flange of the drainage fitting is in close contact with the indoor surface of the formwork, there is no gap between the formwork and the drainage fitting, and the caulking agent can be filled to reliably prevent rain leakage. . Further, a draining metal fitting is arranged so as to be bridged between the pair of molds, and one flange is closely attached to one mold and the other flange is closely attached to the other mold. Since they are locked, the pair of molds that are abutted and connected in the longitudinal direction can be connected without their end faces being misaligned. Further, the mold can be easily manufactured by extruding the locking piece of the mold integrally with the mold. In addition, by providing the draining metal fitting with a locking piece of the mold and a notch that slidably engages in the longitudinal direction of the mold,
Since the draining metal fitting can be slid in the longitudinal direction of the mold while being engaged with the locking piece, the work of attaching the draining metal fitting so as to bridge the pair of molds can be easily performed. Further, by manufacturing the draining metal fitting from an extruded material, it is possible to easily manufacture the draining metal fitting corresponding to the molds having different sizes and shapes. Further, by providing a convex portion extending in the longitudinal direction of the bottom plate on the surface of the bottom plate of the draining metal fitting, the rainwater received by the draining metal fitting can be guided in the longitudinal direction of the bottom metal plate and reliably discharged. it can.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a skylight according to the present invention will be described in detail below with reference to the drawings. Here, FIG. 1 is a sectional view of one embodiment of a skylight according to the present invention, FIG. 2 is a perspective view of a first drainage fitting shown in FIG. 1, and FIG. 3 is a perspective view of a second drainage fitting shown in FIG. 4, FIG. 4 is a perspective view of the third drainage fitting shown in FIG. 1, FIG. 5 is a perspective view of the material of the drainage fitting, FIG. 6 is a sectional view of the main part of the skylight shown in FIG. 1, and FIG. 7 is shown in FIG. It is sectional drawing of the principal part of a skylight.

As shown in FIG. 1, the skylight 100 of this embodiment.
Is a closing plate 1 for daylighting, a first mold 20 and a second mold 3
0, and the first drainage fitting 40 and the second drainage fitting 50 arranged on the indoor side of the portions where the pair of first molds 20 and the pair of second molds 30 are butted against each other in the longitudinal direction. , A third drainage fitting 60, and a bolt 5 for screwing the daylighting closing plate 1 to the first mold 20.

The first formwork 20 is manufactured by extrusion-molding a light alloy material such as aluminum, and as shown in FIG. 1, a base portion 21 fixed to a structural member of a building (not shown). A vertical wall portion 22 is provided upright from the base portion 21 so as to extend vertically upward, and a daylight closing plate 1 is extendedly extended from the upper end of the vertical wall portion 22 so as to extend horizontally. The threaded portion 23 and the vertical wall portion 22
A support portion 24 extending from the middle of the room to extend to the indoor side and supporting the glass 15 with a fireproof mesh, and the first formwork 2
No. 0 connecting part 25 extending from the base part 21 for connecting the second formwork 30 attached to the lower side of the tip part.

Further, the vertical wall portion 22 of the first formwork 20.
A locking piece 22b having an L-shaped cross section is provided at the upper end of the surface 22a on the indoor side, and I is provided on the upper surface of the base end of the support portion 24.
Locking pieces 22c having a V-shaped cross section are integrally formed by extrusion to lock the first draining fitting 40. Then, the base 2 of the first formwork 20.
A pair of locking pieces 21b having an L-shaped cross section are provided on the surface 21a on the indoor side of 1, and the flange 24 of the support portion 24.
Locking pieces 24c each having an L-shaped cross section are integrally formed by extrusion at the tip of b so as to lock the second drainage fitting 50.

The second mold 30 is manufactured by extrusion-molding a light alloy material such as aluminum, and has a base 31 extending substantially parallel to the base 21 of the first mold 20, and the base 31. A connection part 32 extending at the tip of the base part 31 on the first mold frame 20 side so as to extend vertically upward and screwed to the connection part 25 of the first mold frame 10,
The vertical wall portion 33 extends vertically downward from the opposite end of the base portion 31. And the base 31
A pair of locking pieces 31b having an L-shaped cross section are provided on the indoor surface 31a of the above, and the indoor surface 33 of the vertical wall portion 33 is also provided.
Locking pieces 33b each having an L-shaped cross section are extruded and molded integrally with a so as to lock the third drainage fitting 60.

As shown in FIG. 2, the first drainage fitting 40 extends in parallel with the vertical wall portion 22 when attached to the first formwork 20, and the vertical wall portion 22 side thereof. A rectangular bottom plate 41 having three vertically extending projections 45 on its surface, and a pair of side walls 42 vertically extending from both ends in the width direction of the bottom plate 41 and extending toward the vertical wall portion 22. , A pair of flanges 43 extending from the tips of the pair of side walls 42 and closely contacting the indoor surface 22a of the vertical wall portion 22. Then, on both sides of the pair of side walls 42 on the side of the flange 43, cutouts 44 that engage with the locking pieces 22b and 22c of the first mold 20 are provided. As a result, the flange 43 of the first drainage fitting 40 has the first
Of the first mold 20 in close contact with the indoor surface 22a of the vertical wall portion 22 and with the cutouts 44 of the locking pieces 22b, 22c of the first mold 20 being inserted therethrough. The form 20 can be slid in the longitudinal direction.

As shown in FIG. 3, the second drainage fitting 50, when attached to the first formwork 20,
A strip-shaped bottom plate 51 extending in parallel with the base 21, a pair of side walls 52 extending vertically toward both ends of the bottom plate 51 in the width direction, and a pair of side walls 52 extending from the tips of the side walls 52. It is provided with a pair of flanges 53 that are extended and closely adhere to the indoor surface 21a of the base portion 21. Further, the pair of side walls 52 and the pair of flanges 53 are provided with notches 54 and 55 into which the pair of locking pieces 21b are inserted and engaged. Also,
The bottom plate 51 is bent at a slight angle at a bending line 51a facing the end of the side wall 52 so that the bottom plate 51 extends parallel to the support 24 when attached to the first mold 20. Has been done. A pair of side walls 57 extending toward the support portion 24 is vertically provided at both ends of the bent portion 56 of the bottom plate 51 in the width direction, and the pair of side walls 57 is provided at the tips thereof with the support. A pair of flanges 58, which are in close contact with the indoor surface 24a of the portion 24, are extended. Further, a flange 59 is vertically provided at the tip of the bottom plate 56 so as to be in close contact with the vertical wall 24b of the support portion 24 and to engage with the locking piece 24c. As a result, this second drainage fitting 5
0 makes the pair of flanges 53 closely adhere to the indoor surface 21a of the base portion 21 of the first formwork 20, and the pair of flanges 58 makes the indoor surface 2 of the support portion 24.
4a, and the flange 59 thereof is closely adhered to the flange 24b of the support portion 24, and the notches 54 and 55 thereof are provided with a pair of locking pieces 21b of the first mold 20.
The first mold frame 20 with the flange 59 engaged with the locking piece 24c.
It can be slid in the longitudinal direction. In addition, on the surface of the bottom plate 51 on the side of the first formwork 20, three ridges 5 extending in the longitudinal direction of the bottom plate 51 are provided.
1b is integrally provided. As a result, the rainwater received by the second drainage fitting 50 is guided down by the ridges 51b and flows down, so that it does not leak out to the indoor side from the boundary between the side wall 52 and the side wall 57.

As shown in FIG. 4, the third drainage fitting 60, when attached to the second formwork 30,
A bottom plate 61 extending parallel to the base 31, a pair of side walls 62 vertically extending from both ends of the bottom plate 61 in the width direction and extending toward the base 31, and a pair of side walls 6 of the side walls 62.
2 extends from the tip of the inner surface 3 of the base 31 on the indoor side
It is provided with a pair of flanges 63 that are in close contact with 1a. The pair of side walls 62 and the pair of flanges 63 have a pair of locking pieces 31 b provided on the base 31.
Is provided with a pair of notches 64 that are inserted and engaged with each other. Further, the bottom plate 61 is bent at a folding line 61b, and when the bottom plate 61 is attached to the second mold 30, the bent bottom plate 65 is parallel to the vertical wall portion 33 of the second mold 30. It is designed to extend to. A pair of side walls 66 extending toward the vertical wall portion 33 is vertically provided at both ends of the bottom plate 65 in the width direction, and indoor surfaces of the vertical wall portion 33 are provided at tips of the pair of side walls 66. A pair of flanges 67 that are in close contact with 33a are extended. The pair of side walls 66 and the pair of flanges 67 are provided with notches 68 into which the pair of locking pieces 33b provided on the vertical wall portion 33 are inserted and engaged. Thereby, the third drainage fitting 60
Is in close contact with the indoor side surfaces 31a and 33a of the base 31 and the vertical wall 33 of the second formwork 30, and the cutouts 64 and 68 thereof have locking pieces 31b and 31b of the second formwork 30. Three
It is configured so that it can be slid in the longitudinal direction of the second mold 30 with the 3b inserted. Also,
On the surface of the bottom plate 61 and the bottom plate 65 on the second mold frame 30 side, three convex stripes 61 extending in the longitudinal direction of the bottom plates 61 and 65 are provided.
a is integrally projected. As a result, the rainwater received by the third drainage fitting 60 is guided by the projections 61a and flows down, so that it does not leak out to the indoor side from the boundary portion between the side wall 66 and the side wall 62.

By the way, the above-mentioned first to third draining fittings 40, 50 and 60 are all provided with a bottom plate 71 extending in a strip shape as shown in FIG. 5 and hanging from both ends of the bottom plate 71 in the width direction. A pair of side walls 72 provided and these side walls 7
A material 70 extruded integrally with a pair of flanges 73 extending so as to extend in parallel with the bottom plate 71 from the tip of the second material is cut into a predetermined length, and the bottom plate 71 is cut.
Is bent, and the notches are punched in the 72 and the flange 73, so that they can be manufactured. Thereby, the first to the third
Since it is possible to eliminate the dedicated press die for manufacturing the draining metal fittings 40, 50, and 60,
The manufacturing cost can be significantly reduced.

Next, the assembly of the skylight 100 of this embodiment will be described. First, a pair of first formwork 20 is attached to a structural member (not shown) arranged along the periphery of the opening of the building.
The pair of second molds 30 are arranged so as to abut each other in the longitudinal direction, and are temporarily fixed. At this time,
The first drainage fitting 3 is provided on one of the pair of first molds 20.
0 and the second drainage fitting 40 are engaged with each other, and the third drainage fitting 60 is engaged with one of the pair of second molds 30.

After that, the second draining metal fitting 50 is attached to the first
The mold 20 is slid in the longitudinal direction and is arranged so as to bridge between the pair of first molds 20 that are butted against each other in the longitudinal direction. Then, as shown in FIG.
The draining fitting 50 of the first side wall 52 has one side wall 52.
Engages with the locking piece 21b of the frame 20 of the other side wall 5
2 engages with the locking piece 21b of the other first mold 20, and one flange 53 is in close contact with the base 21 of the one first mold 20, and the other flange 53 is the other one. It comes into close contact with the base portion 21 of the first formwork 20. As a result, the pair of first molds 20 that are butted against each other
The second draining fitting 50 allows the end faces of the end faces to be opposed to each other without being misaligned as if they were fitted with a braces. Subsequently, the first draining metal fitting 40 and the third draining metal fitting 60 are also mounted in exactly the same manner as the second draining metal fitting 50, and then, using anchor metal fittings not shown,
The first formwork 20 and the second formwork 30 are fixed to structural members arranged around the opening of the building. This allows
Even if the plurality of first formwork 20 and the second formwork 30 are continuously connected in the longitudinal direction, the end faces thereof are fixed without misalignment, so that not only the appearance is excellent, but also the lighting closing plate. The mounting accuracy of No. 1 can be improved.

Next, as shown in FIG. 6, when the caulking agent 80 is injected from the gap 16 between the pair of first molds 20, the second drainage fitting 50 comes into close contact with the first mold 20. The first formwork 20
It is possible to completely fill the gap portion between the second draining metal fitting 50 and the second drainage fitting 50, and ensure waterproofing so that rainwater does not enter from this portion. Thereby, rainwater can be prevented from entering from this portion, and the second drainage fitting 50 can be fixed so as not to shift in the longitudinal direction of the first mold 20. In addition, even if rainwater enters from the caulking agent 80,
Rainwater has a convex shape 5 extending in the longitudinal direction along the surface of the bottom plate 51.
Since it is guided by 1b and flows down and is discharged, it does not leak to the indoor side. As shown in FIG. 7, by inserting the backup material 90 inside the second drainage fitting 50, caulking is performed in the gap between the first formwork 20 and the second drainage fitting 50. The agent 80 can be filled more reliably. Needless to say, the same treatment is applied to the first drainage fitting 40 and the third drainage fitting 60.

Further, in the skylight 100 of this embodiment,
When fixing the first to third drainage fittings 40, 50, and 60 to the first formwork 20 and the second formwork 30, first
It is not necessary to cut out the respective locking pieces provided on the mold frame 20 and the second mold frame 30 and to screw the first to third draining fittings 40, 50, 60. Further, in the skylight 100 of the present embodiment, the support portion 2
Since the mounting portion 24d for mounting the glass 15 containing the fireproof mesh is provided on the upper end portion of the vertical wall 24b of No. 4, the vertical wall 24b of the support portion 24 and the flange 59 of the second draining fitting 50 are aligned at the site. There is no need to cut out with. This allows
In the skylight 100 of the present embodiment, the efficiency of the work of fixing the first to third draining fittings 40, 50, 60 to the first mold 20 and the second mold 30 can be greatly improved. .

It is needless to say that the above-mentioned present embodiment is only one embodiment of the waterproof structure of the skylight of the present invention, and various other modified examples can be adopted.

[0025]

Since the skylight of the present invention is constructed as described above, the following excellent effects can be obtained. That is, in the waterproof structure of the skylight of the present invention, the draining metal fittings attached to the portions where the pair of molds are abutted and connected in the longitudinal direction are directly locked by the locking pieces provided on the molds. Can be easily and surely attached and fixed to the formwork.

Further, since the drain fitting is provided with the flange which is in close contact with the frame, no gap is formed between the drain fitting and the mold. In addition, a draining metal fitting is arranged so as to be bridged between a pair of molds, and one flange is closely attached to one mold and the other flange is closely attached to the other mold. By stopping, it is possible to connect the pair of molds without misaligning their end faces.
It is possible to reliably prevent rain leaks.

Further, when mounting the drainage fitting to the formwork, it is not necessary to cut out or screw the formwork and the drainage fitting together on site, so that the workability can be greatly improved.

Further, the mold can be easily manufactured by extruding the locking piece of the mold integrally with the mold, and at the same time, the locking piece of the frame and the longitudinal direction of the mold can be attached to the draining fitting. By providing a notch that slidably engages with, the draining metal fitting can be slid in the longitudinal direction of the mold while being engaged with the locking piece. It is possible to easily carry out the work of mounting so as to bridge.

Further, the water-draining metal fittings are formed by cutting the extruded material into a predetermined length, bending the bottom plate, punching the notches, and the like to cope with molds having different sizes and shapes. The draining metal fittings can be easily manufactured without raising the press die individually, and the manufacturing cost can be significantly reduced.

Therefore, according to the present invention, the drainage fitting can be directly fixed to the formwork of the skylight to prevent rain leakage, and the drainage fitting can be attached to the formwork without notching the formwork. It is possible to provide the waterproof structure of the skylight which can be manufactured and facilitates the manufacturing of the draining metal fitting to reduce the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a sectional view of an embodiment of a skylight according to the present invention.

FIG. 2 is a perspective view of a first drainage fitting shown in FIG.

FIG. 3 is a perspective view of a second drainage fitting shown in FIG. 1.

FIG. 4 is a perspective view of a third drainage fitting shown in FIG. 1.

FIG. 5 is a perspective view of a material of the drainage fitting.

6 is a cross-sectional view of a main part of the skylight shown in FIG.

7 is a cross-sectional view of a main part of the skylight shown in FIG.

FIG. 8 is a cross-sectional view of a conventional skylight.

FIG. 9 is a cross-sectional view showing a structure of a connection portion of a conventional skylight.

[Explanation of symbols]

 1 Light-blocking plate 2 Packing 3 Washer 4 Packing 5 Bolt 6 Washer 7 Nut 10 Form frame 11 Base part 12 Vertical wall part 13 Screw fitting part 14 Bearing part 15 Fireproof mesh 18 Draining fitting 19 Fixing fitting 20 First formwork 30 2nd formwork 40 1st draining metal fitting 50 2nd draining metal fitting 60 3rd draining metal fitting 70 Material 80 Caulking agent 90 Backup material 100 Skylight according to the present invention

Claims (5)

[Claims] 1. A trough-shaped drainer which is arranged on the indoor side of a portion of a pair of skylights that abut each other in the longitudinal direction so as to be bridged between the pair of die frames and extends along the abutted portion. The metal fittings are strip-shaped bottom plates that extend to face the indoor surface of the mold, a pair of side walls that are erected at both ends of the bottom plate in the width direction and extend toward the surface, and Drainers provided with a pair of flanges each extending from the side wall and closely attached to the surface, one flange of the pair of flanges is closely attached to the indoor side surface of one of the pair of formwork, While arranging the other flange so as to be in close contact with the indoor surface of the other form,
A waterproof structure for a skylight, characterized in that it is locked to a locking piece that is provided so as to project on the indoor side surface of the formwork and that locks the drainage fitting so as not to separate from the surface. 2. The waterproof structure for a skylight according to claim 1, wherein the locking piece is integrally formed by extrusion in the longitudinal direction of the mold. 3. The waterproof of a skylight according to claim 2, wherein the drainage fitting is provided with a notch that slidably engages with the locking piece in the longitudinal direction of the mold. Construction. 4. A bottom plate extending in the shape of a strip, the draining metal fitting,
A pair of side walls erected on both ends of the bottom plate in the width direction,
4. An extruded material comprising a pair of flanges extending from the respective tip portions of the pair of side walls so as to extend parallel to the bottom plate, and manufactured from an extruded material. Waterproof structure of skylight described in crab. 5. The waterproof of a skylight according to claim 1, wherein a convex portion extending in a longitudinal direction of the bottom plate is provided on a surface of the bottom plate on the mold frame side. Construction.