JP2018012978A - Secure and safe eco-skylight structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light diffusion-type skylight for being installed a folded-plate roof, which achieves complete leakage control, which can take countermeasures against rainy weather at an early stage of construction work, which shortens a construction period of skylight work by reducing the number of components, and which improves workability and safety by eliminating an operation on the back side of the roof.SOLUTION: A skylight structure comprising a skylight side frame 03 having a seam 21 seam-folding-joined to a seam 02 of a folded-plate roof 01 has rising parts 41 provided on two sides, on the side where a light diffusion plate continues, of four sides of the rectangular light diffusion plate 08, respectively. The light diffusion plate having a falling part 42 is used on the other sides. A skylight rib 05 having a shape for covering the rising part and binding skylight side frames on both the sides of the skylight is provided, and a seam folding joint is reinforced by using a screw, the screw and a metal fitting, or the fitting.SELECTED DRAWING: Figure 6

Description

The present invention relates to a technique for improving the performance of a light diffusing skylight installed on a folded folded roof (hereinafter referred to as “folded roof”) and improving construction safety.

By installing a light diffusing skylight, lighting can be turned off in the daytime, and the power consumption of lighting can be reduced by 60% or more. Light folding skylights can be easily installed on folded roofs that are frequently used in large buildings. Folded roofs are about half of the area of new buildings in Japan. Although it is expected to contribute to environmental issues by installing light-diffusing skylights on the folded-plate roof, it has not been popularized.
In addition, waterproof sheet roofs are widespread. However, the skylights so far are heavy, and the roof itself is unsuitable for installation on a waterproof sheet waterproof roof, and no skylights suitable for the waterproof sheet roof have been developed.

Patent No. 4573347 gazette Skylight structure Japanese Patent Application Laid-Open No. 1-299945 JP, 58-176355, A

Light diffusing skylights installed on the folded roof are low cost and specialize in energy and resource saving. Due to the high proportion of folded roofs, the possibility of light diffusion skylights contributing to environmental problems is immeasurable. In addition, the effects of sunlight on human health and the improvement of workability are being revealed. However, since there is no product that is resistant to water leakage and excellent in workability, the diffusion of light diffusion type skylights has not progressed.

The light diffusing skylight of FIG. 1 that can be installed on a folded roof frequently used in large-scale buildings is often configured as shown in FIG. The light diffusing skylight as shown in Fig. 2 has skylight rib mounting, inner casing installation, skylight side frame installation, light diffusing plate installation, sealing material installation, float glass, netted glass, multi-layer glass The other light transmitting member (hereinafter referred to as “lighting plate”) is assembled and the sealing material zipper is attached. Until the lighting plate is installed, there is a possibility of leakage of rainwater, and construction under the roof cannot be started.

The skylight side frame is fixed by being sandwiched between folded-plate roofs by a skylight side frame fixing tool composed of an inverted U-shaped hardware, a bolt, and a receiving material. The skylight side frame and the folded-plate roof are in close contact with each other in the skylight side frame fixing part, but are not in close contact with each other because of their respective deflections and distortions. Even if packing or sealing is applied, the airtightness cannot be increased.

In order to mount the skylight side frame, it is necessary to carry out a detailed work of inserting an inverted U-shaped hardware into the skylight side frame and passing a bolt of the inverted U-shaped hardware through the hole of the skylight rib support portion. There is a construction difficulty of performing detailed work using the largest and heavy member.

Since the position of the sealing material of the daylighting plate is inside the ridge, an inner ridge is required to prevent water leakage from the sealing material. The internal lighting reduces the effective lighting area and is uneconomical.

Since the position of the skylight rib is low, it corresponds to the position where it interferes with the light diffusion plate. The light diffusing plate is divided for each skylight rib. The amount of sealing is increased and construction takes time.

The skylight as shown in FIG. 3 is a light diffusion type skylight devised for a fitting type folded plate roof. The fitting type folded plate roof is a roof in which a folded plate is fixed to a tight frame with bolts, and then a cover is fitted to the bolted portion. Although the performance of bolt fixing is stable, it is expensive because the number of parts increases, and it is not as widespread as a fold-jointed folded plate roof.

Folded plate roofs are made by roll molding, but roll molding lacks dimensional stability. On the other hand, the inner cover and the outer cover in FIG. 3 are aluminum extruded shapes, and are characterized by high dimensional stability. There is no problem in fitting the outer cover to the inner cover because of the dimensional stability of each other, but when fitting the inner cover to the folded plate, complete fitting is difficult due to the difference in dimensional stability between the two. And not practical.
In addition, aluminum extruded profiles can be manufactured only at the factory, so there are restrictions on the length of transportation, and they are not suitable for large skylights necessary for large buildings.

The skylight that requires a base as shown in FIG. 4 has a small opening and is inefficient in terms of taking light.

The skylight that requires a ground as shown in FIG. 4 also has a drainage function for drainage of rainwater from both sides of the daylighting plate, but for those that have been flooded by the joint plate of the joint part of the daylighting plate, The drainage function does not work and is not completely waterproof.

A considerable percentage of seat waterproof roofs are also installed. However, the skylights so far are heavy, and the roof itself is unsuitable for installation on a waterproof sheet waterproof roof, and no skylights suitable for the waterproof sheet roof have been developed.

The light diffusion type skylight according to the present invention realizes complete water leakage countermeasures by combining the skylight side frame having the folded joint united with the folded plate roof and the light diffusion plate having rising and falling edges. Furthermore, since measures against rainy weather can be taken at an early stage of skylight construction, construction under the roof is started, and the burden on construction work is small. In addition, by reducing the number of parts of the light diffusing skylight, it is possible to shorten the construction period of the skylight construction. And the operation on the back of the roof was eliminated, and workability and safety were improved.
By directly folding the skylight side frame with the folding roof of the folded roof, the folded roof and the skylight side frame are seamlessly connected, resulting in a simple skylight with little risk of water leakage.
By the construction method in which the light diffusing plate precedes the skylight rib, there is no risk of water leakage even in the skylight in the middle of construction, and the post-process can be advanced.
The light diffusing skylight of the present invention having few parts and light weight has no problem for installation on a waterproof sheet roof having a lightweight roof.

When a light diffusion type skylight is installed, the amount of illumination power can be reduced by 60% or more by an appropriate illumination control method. In the past, functions have been improved and costs have been reduced. According to the present invention, by improving safety during construction, shortening work time, and starting a post-process by taking measures against rainfall, the spread of light-diffusing skylights on folded-plate roofs is promoted, and it is possible to contribute to environmental issues.
The effect of sunlight on the mind and body becomes clear, and the skylight can be recognized as a facility for health. In particular, it will meet the demands of hospitals and health facilities that are difficult to go outside.

It is a cross section of the common light-diffusion type skylight installed linearly on a folded-plate roof. It is detail drawing of the common light-diffusion type skylight installed linearly on a folded-plate roof. (A) is a skylight side frame. (B) is a skylight rib. Japanese Patent Laid-Open Publication No. Hei 1-299945 Daylighting enclosure Cited FIG. 2 is an example of a cross section of a skylight using an aluminum profile. Published Patent Publication JP-A-58-176355 Thermal Insulating Daylighting Enclosure FIG. 2 is cited and is an example of a cross section of a skylight using a reinforcing base. It is a cross-sectional view of the present invention. It is a detailed view of the present invention. (A) is a skylight side frame. (B) is a skylight rib. It is a buttocks of the skylight rib of this invention. (A) is the time of temporary installation. (B) is after caulking. It is the example which installed the light diffusion type skylight on the sheet | seat waterproof roof using the member of this invention.

FIG. 5 is a light diffusion type skylight using the roofed skylight side frame of the present invention. FIG. 6 shows the details.
The skylight side frame with a ridge is caulked integrally with the fold of the folded plate roof, and if necessary, the ridge may be reinforced as shown in FIG. The light diffusing plate having the rising and falling edges of the present invention is placed on the ridge. The skylight rib of the present invention is installed so as to cover the rising of the light diffusing plate as shown in FIG. 6B, and is fixed to the skylight side frame with screws.
A sealing material is attached to the end of the skylight side frame. After the packing is installed in the skylight rib sealing receiving part, a daylighting plate is inserted into the receiving port of the sealing material, sealing is performed on the seam of the daylighting plate, and a sealing material zipper is attached to complete.

The shape of the roof of the skylight side frame may be a Z shape (acute angle) as shown in FIG. 7A, a right angle or an obtuse angle, or a curve or a combination of a straight line and a curve.
As shown in FIG. 7 (a), the roof of the skylight side frame is caught on the roof of the folded-plate roof by simply placing the skylight side frame on the folded-plate roof and does not fall down. Then, it is fixed to the folded-plate roof by caulking the roof of the skylight side frame. Since the position of the skylight side frame can be finely adjusted in a stable state on the folded plate roof, the accurate position can be easily determined. Workability is improved by installing the largest member on the folded plate roof first.

A folded plate roof is usually a roof formed by a roll molding machine and continuously laid with a single folded plate having a male collar on one side and a female collar on the opposite side. The folded plates are arranged in the same direction, the male and female of the adjacent folded plate are stacked, and the tight frame that is tightly attached to the building frame is wound around, and the folded connection is completed. The folded plate roof secures the strength as a whole because the folded plates are connected to each other by folding joints, and the tight frame connects the entire roof to the building.

The folded plate roof secures the strength as a whole because the folded plates are connected to each other by folding connection. Depending on the area, location, and location where the folded-plate roof is used, the required strength of the folded joint varies.
Since the skylight is part of the roof, it needs to be as strong as the roof. Therefore, joint strength similar to that of the folded plates can be obtained by folding and joining the folded plate roof and the skylight side frame.
Moreover, it becomes possible to make a skylight structure with high airtightness by filling an irregular ceiling between the ridges.

The reinforcing method when the joint strength is further required than the above-described folding joint is a method of fixing with a screw penetrating each other of the folded portions, a method of fixing with a U-shaped leaf spring, FIG. 6 (a). There are a method of fixing a folded portion by pressing a folded portion with a screw from one end of a U-shaped part such as a reinforcing material, and a method of fixing by a combination thereof. Moreover, you may reinforce using FIG. 2 skylight side frame fixing tool.
Appropriately select the reinforcement method according to the required degree of reinforcement and the place of use.

As the light diffusion plate, a polycarbonate multilayer plate is often used. The light diffusing plate has the function of diffusing and transmitting the sunlight that has passed through the daylighting plate on the outdoor side of the skylight, but it prevents the condensation water falling on the indoor side of the light transmitting member on the outdoor side and transmits light. It contributes to the seal breakage of the member, the prevention of water leakage when the light transmission member is broken, and the improvement of the heat insulation performance at the skylight part.

The light diffusing plate of the present invention that rises and falls at the end is designed to improve the function of preventing the fall of condensed water and water leakage.
The water leakage caused by the seal rupture at the connecting portion of the daylighting plate passes through the skylight rib and falls on the light diffusion plate. The rise is inserted into the skylight rib, so that the water leak surely flows on the light diffusing plate and functions to prevent water leak. Even when water leaks due to breakage of the lighting plate, the water leaks to the light diffusion plate directly from the lighting plate or via the skylight rib. Therefore, water leakage does not reach under the skylight, and it is possible to prevent water leakage.

The water leaked to the light diffusing plate reaches the falling edge of either the left or right light diffusing plate and reliably falls to the skylight side frame drainage part. Due to the falling, water leaks behind the light diffusion plate and does not drip from the opening to the floor. In the case of a roof without a slope, the light diffusing plate may have a slope on the skylight side frame side so that water leaks smoothly.

Condensation occurs due to the temperature difference between moisture-containing air and the individual. Occurs when the temperature of moisture-containing air drops at the interface with a cold individual and falls below the saturation temperature. Harmful dew condensation occurs when it occurs inside the skylight. In winter, the skylight members become cold due to outside air, radiant cooling, etc., and are generated between indoor air containing a lot of moisture.

Among the members of the skylight, the ones having the lowest temperature are the skylight side frame, the sealing material, and the daylighting plate. In addition, the temperature of the skylight rib also decreases through the skylight side frame. Condensation generated in the skylight side frame flows directly to the skylight side frame drainage portion, and condensation generated in the sealing material and the lighting plate flows to the skylight side frame drainage portion via the light diffusion plate and is discharged to the outside.

In the case of condensation caused by the skylight ribs, the condensation occurs at a place where the indoor air is in direct contact with the joint portion of the light diffusion plate. Depending on the humidity conditions of the building, condensation can drip on the floor.
Therefore, if there is a risk of condensation, the skylight side frame and the skylight rib may be fixed with heat insulation packing to block the heat bridge between the skylight side frame and the skylight rib, or the skylight rib inner surface is coated with resin. Further, a measure for preventing a decrease in the inner surface temperature may be performed.

The rise of the light diffusing plate is inserted with a suitable gap inside the skylight rib, so that the position of the light diffusing plate is limited by the skylight rib without restricting the expansion and contraction of the light diffusing plate. This eliminates the need for parts and metal fittings for fixing the light diffusing plate.

The fall is positioned by the skylight side frames on both sides and does not move. The light diffusing plate having the falling does not require a member or a part for fixing.

Until now, the light diffusing plate was divided and installed according to the skylight rib. The skylight rib is installed not only for receiving the joint seal of the daylighting plate but also for reinforcing the daylighting plate and joining the folded plate at the middle part of the daylighting plate. For this reason, the light diffusing plate is finely divided and installed, and not only the number of seals to be fixed increases, but also there are problems in terms of functions such as breaking and sticking of the seals to be fixed.
Since the skylight rib and the light diffusing plate of the present invention do not interfere with the skylight rib in the flat portion of the light diffusing plate, the size of the light diffusing plate can be determined only by the convenience of the light diffusing plate.

A commercial product of a polycarbonate multilayer plate used as a light diffusing plate has a size of about 4 m × 2 m.
The light diffusion plate is very light compared to the daylighting plate. The weight of the 6.8 mm thick netted glass is 17 kg / square meter, while the 6 mm thick polycarbonate multilayer board is 1.4 kg / square meter. Even if the width is 0.5 m and the length is 4 m, the weight is less than 3 kg.
It is rare for a light diffusing plate to damage itself or its counterpart if it collides with another object.
Therefore, workability is improved by using a large member. It is also possible to assign one light diffusing plate to two lighting plates, or one light diffusing plate to three lighting plates. Omitting the number of parts helps shorten construction costs and schedules.

Contrary to the above, by attaching skylight ribs at shorter intervals than the lighting plate and inserting the light diffuser plate smaller, it can also be used as an opening for maintenance and renewal of lighting fixtures from the roof Also good.

It is good also as the specification which improved airtightness by sealing between the rising of a light diffusing plate and the rising of an adjacent light diffusing plate, and between a light diffusing plate and a folding junction part, respectively.

The inverted U-shaped skylight rib is mounted on the skylight rib body, the reverse U-shaped skylight rib body that connects between the skylight side frames, the skylight rib fixing part that attaches to both ends of the rib and fixes the skylight side frame with screws, and the skylight rib And a skylight rib sealing receiving portion that serves as a seal presser for the joint of the daylighting plate.
The skylight rib main body has a strength to transmit stress generated in the folded plates on both sides sandwiching the skylight. In addition, the rising of the light diffusion plate is included in the inverted U-shaped inner space.
The skylight rib fixing portion is a portion for fixing the skylight side frame, and corresponds to the required strength by changing the thickness and length of the end portion and the number of the skylight rib fixing screws.
The skylight rib sealing receiving part is provided with a backup material sandwiched between the daylighting plates and sealed. The shape of the skylight rib sealing receiving portion may be a T-shape, a square pipe, or a square member in addition to the inverted U shape shown in FIG.

The skylight rib is installed after the light diffusing plate is installed, and is fixed to the skylight side frame. When using a light diffusing plate with rising and falling edges, when the skylight rib is placed on the rising edge of the light diffusing plate, in normal rain, rainwater does not fall down from the joint of the light diffusing plate. Become. There is no need to wait until the skylight rib is fixed to the skylight side frame.
At that time, it is in a state of preventing parts and tools from dropping.
In this state, it is possible to work on the lower floor without worrying about rain or the like and without worrying about falling parts and tools. Compared to other skylight construction methods, the start of post-construction can be advanced, so the construction period can be shortened.

The present invention used for folded plate roofs can also be applied to sheet waterproof roofs.
As shown in FIG. 8, the sheet waterproof roof is constructed by installing a hard heat insulating material on a deck plate and attaching a sheet waterproof layer thereon.
It is possible to install the skylight of the present invention by providing a rise for installing the light diffusing skylight and installing a drainer having an end that fits into the ridge.

The skylight side frame is symmetrical. Until now, it was only possible to make a skylight side frame with one type of roll forming machine, rotate one side, and install it. A large facility cannot provide a place to rotate a long skylight side frame. Therefore, rotating on the roof has been performed. In addition to the poor scaffolding and the skylight opening, the work is done manually and is extremely dangerous.

A conventional skylight side frame roll forming machine is similar to a general roll forming machine in that it forms a frame that forms the entire roll forming machine, a forming roller group that bends thin plates, a shaft that supports the roller group, and a drive unit that rotates the roller. , Cutting device, control device and safety device.

The molding machine that manufactures the left and right sides of the skylight side frame of the present invention is symmetrical, so the created skylight side frame is symmetrical. It is. Moreover, a drive part can also be used. By using a single frame, installation, transportation and storage become easy. Since it is symmetrical, it can also be used for designing roll forming machines, and design and manufacturing costs can be reduced.
The molding machine that produces the left and right sides of the skylight side frame of the present invention contributes to the safety and speeding up of construction when installing a light diffusion type skylight in a large folded-plate roof building that requires local processing. It also contributes to the spread of light diffusing skylights.

Light diffusing skylights are effective for use in warehouses, factories, stores, and gymnasiums. Light diffusion type skylights are also effective for people who need sunbathing, such as hospitals, medical facilities, nursing homes, and childcare facilities, but are difficult to sunbathe.

01 Folding plate roof 02 Folding plate roof part 03 Skylight side frame 04 Skylight side frame fixture 05 Skylight rib 06 Skylight rib support part 07 Inner wall 08 Light diffuser 09 Sealing material 10 Sealing material zipper 11 Daylighting plate

21 Skylight side frame ridge 22 Skylight side frame drainage 23 馳 Reinforcement material 24 馳 Reinforcement hook 25 馳 Reinforcement screw

31 Skylight rib fixing part 32 Skylight rib fixing screw 33 Skylight rib sealing receiving part

41 Rise of light diffuser 42 Fall of light diffuser

51 Daylighting plate sealing material 52 Daylighting plate backup material

61 Sheet waterproof roof steel base 62 Sheet waterproof roof deck material 63 Sheet waterproof roof rising base 64 Sheet waterproof roof insulation 65 Sheet waterproof 66 Drainage hardware

Claims (6)

A skylight structure with a skylight side frame with a folding roof and a folding joint. A skylight structure using a light diffusing plate having rising edges on two sides of the four sides of the rectangular light diffusing plate that are continuous with the light diffusing plates and falling edges on the other sides. A skylight structure having a shape that covers the rise of the light diffusing plate according to claim 2 and using skylight ribs for fastening the skylight side frames on both sides of the skylight. A method of installing or fixing a skylight side frame prior to the skylight ribs in folding plate roof installation work. The method of reinforcing a folded joint according to claim 1, using a screw, a screw and a metal fitting, or a metal fitting. A roll molding machine that produces a single left and right skylight side frame.