JP3855182B2 - Eaves structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to an eaves structure for preventing impacts such as foreign matter contamination and snowfall and enabling use in snowy areas.
[0002]
[Prior art]
Conventional eaves jars were (1) A basin that received rainwater was installed directly open upward via a casket. (2) Almost no eaves were used for snowy areas.
[0003]
[Problems to be solved by the invention]
However, in (1) , (b) mixing of fallen leaves, dust, etc. is unavoidable, and maintenance takes time. (B) It cannot withstand snow loads and has a short service life. (C) It is necessary to make it possible to use eaves with simple construction even in snowy areas. There were disadvantages such as.
[0004]
[Means for Solving the Problems]
In order to eliminate such drawbacks, the present invention provides a receiving material (hereinafter simply referred to as a receiving material) having improved wettability by applying or sticking a hydrophilic paint or hydrophilic film on the way from eaves to eaves. By interposing it, the Coanda effect and the teapot effect are exhibited, and rainwater is allowed to flow down to a predetermined place, and a structure of eaves is proposed in which foreign matter is mixed and damage caused by impact such as snowfall is prevented.
[0005]
【Example】
Hereinafter, the eaves structure according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic diagram showing an example in which the eaves part structure A is used for the eaves part, and includes a water transfer introduction part D having a receiving material C and a water receiving part F having a water inlet E. Further, as the roof material B, various metal roofs including a horizontally long roof, or commercially available roof materials such as cement-based new roof tiles and clay roof tiles can be used.
[0006]
2 (a) and 2 (b) are explanatory views cut along the roll line of FIG. 1 and a cross-sectional view showing the eaves G, and the receiving material C includes a fixing portion 1 having a U-shaped cross section, A rainwater reversal piece 2 having a semicircular convex shape protruding from the lower end of the fixed portion 1 outward, and a draining upper surface 3 formed by bending the lower end of the rainwater reversal piece 2 horizontally inward, and a water receiving portion F The top end of the draining upper surface 3 is bent at a right angle downward to form a right side wall 4, a bottom piece 5 having the lower end of the right side wall 4 bent in parallel with the top surface of the draining surface 3, and the tip of the bottom piece 5 is raised upward at a right angle. The outer side wall 6 is formed into a pipe having a substantially cross-sectional angle, and the upper end of the outer side wall 6 is composed of a water inlet E bent inward at an acute angle. Needless to say, various shapes other than this shape are possible. As a raw material, various metal materials and synthetic resin materials are used in addition to a colored steel plate, and molding methods such as extrusion, roll forming, bending, and press working can be employed.
[0007]
FIG. 3 is an explanatory view showing the case where the conventional eaves G is used in a snowy area, where the snow cover α protrudes from the roofing material B of the eave part and is opened to the eaves G opened upward. Since the load is applied, not only the eaves rod G but also the eaves bracket β is deformed, and the fixture γ is lifted up. In this state, the function of the eaves G is lost, water leakage to the outside of the eaves G cannot be avoided, and there are even houses that do not use the eaves G.
[0008]
Figure 4 is an illustration of the receiving material surface 7 shows the (a) state on the substrate 8a, a hydrophilic coating or a hydrophilic film 8 coating, or was attached. Further, when plastic or the like is used as a material, the same effect can be obtained if a material that improves hydrophilicity such as an antistatic agent is incorporated. Note that the hydrophilic material such as the hydrophilic paint or the hydrophilic film 8 is characterized in that, as shown in FIG. 4B , (1) if the hydrophilicity is high, the contact angle θ between the contact surface and the water droplet (rain water R). There repellency increases when small, and the contact angle θ as shown in FIG. 4 (c) increases. The range called hydrophilicity is 0 ° ≦ θ ≦ 60 °. (2) If the contact angle θ is reduced, the contact area with the contact surface is increased even if the volume of water is the same. (3) When water flows on a slope, the larger the contact area, the greater the resistance and the slower the flow velocity. (4) Therefore, it is difficult for rainwater to jump out from the eaves. Etc.
[0009]
FIG. 5 shows a case where the round shape of the tip of the receiving material C is variously changed, and (a) to (d) are obtained by gradually decreasing the radius of the rainwater reversal piece 2. In particular, (a) and (c) are those in which a draining protrusion 3a is formed at the boundary between the rainwater reversal piece 2 and the draining upper surface 3, and (b) and (d) are those in which the draining upper surface 3 is an inclined surface or a serrated draining upper surface. This is the case of 3.
[0010]
Next, a construction example of the eaves structure according to the present invention will be briefly described. In order to construct the eaves structure A as shown in FIGS. 1 to 2A, it is assumed that an eaves G as shown in FIG. 2B is used. Therefore, as shown in FIG. 2A, the fixing portion 1 is brought into contact with the batten h, and the locking piece 1a formed on the upper surface of the fixing portion 1 is fixed by caulking with the engaging piece Ra of the first-stage roof material B. To do. The eaves G is completed by constructing the above steps continuously in the girder direction. The strength can be increased by adopting the dash-dot chain eave metal fitting β. Of course, a dedicated accessory is used for the connecting portion between the eaves G (not shown), the valley portion, or the descending ridge portion.
[0011]
Next, the operation of the eaves structure according to the present invention will be further described. When the rainwater R is introduced into the rainwater reversal piece 2 of the receiving material C connected from the roof material B as indicated by the arrow in FIG. 2A and flows downward along the round shape, the Coanda effect, which is a characteristic of the fluid, Due to the teapot effect, it will go inward from the direction of the vertical line A, and will fall downward at the boundary that changes to the draining upper surface 3, but the water inlet E is installed at a position that covers this falling rainwater R in a marginal range. Therefore, all of the rainwater R flowing down can be collected. On the other hand, during the winter period when there is snow accumulation α indicated by a two-dot chain line, the snow receiving part F will not be damaged by the snow that wraps around the eaves part naturally falls in the direction of the vertical line A from the outer tip of the rainwater reversal piece 2. Of course, fallen leaves, dust and the like naturally fall in the same manner as the above-described snow α, and hardly enter the water receiving portion F from the water inlet E. The Coanda effect and the teapot effect can be further improved by adding hydrophilicity to the entire roof.
[0012]
The above description is only one embodiment of the eaves structure according to the present invention, and it can be formed as shown in FIGS. That is, FIGS. 6 to 10 show other examples of the eaves structure A. FIG. 6 (a) extends the circumference of the rainwater reversal piece 2, inclines the draining upper surface 3, and further the direction of the water flow. FIG. 6 (b) shows the eaves fittings β as shown in the figure, with the addition of a drainer 15 and a combination of the rainwater reversal piece 2 with an arc and a vertical line. FIG. 7 shows the tip of the rainwater reversal piece 2 as a vertical chamfer 16, and FIG. 8A shows a triangular shape with the draining upper surface 3 protruding downward, and the eaves fitting β is partially formed on the upper surface 3. 8 (b), the water receiving portion F is semicircular, and the snow melting device 14 of FIG. 6 (a) is further added, FIG. 9 (a), ( b) and FIG. 10 (a) are formed by separating the receiving material C and the water receiving portion F, and FIGS. 9 (a) and 9 (b) are rainwater reaction. FIG. 10 (a) shows an example of the rainwater reversal piece 2 formed by extrusion molding, and FIG. 10 (b) shows an eaves receiving metal fitting β formed by three members. The receiving material C and the water receiving part F are divided and formed.
[0013]
FIGS. 11 to 13 show other examples of the eaves ridge structure A. FIG. 11A is a combination of the receiving material C and the first-stage roof material B, and the inclination of the eaves is somewhat relaxed. FIG. 11 (b) is the same as FIG. 11 (a) except that the floating portion 19 is not formed . FIG. 12 (b) is the same as FIG. 11 (a). The water receiving part F is encapsulated with the receiving material C, and the notches 18 are formed at a constant pitch. FIG. 13 shows the rainwater reversal piece 2 protruding greatly outward.
[0014]
FIGS. 14 to 19 show other examples of the eaves-wall structure A. FIG. 14 (a) shows a case where a net-like lid 20 is formed at a water inlet E so that dust does not enter, FIG. FIG. 14 (a) shows the water receiving portion F formed in a small size, FIG. 15 (a) shows the water receiving portion F formed in a vertically large size opposite to FIG. 14 (b), and FIG. b) Separates the receiving material C and the water receiving portion F and disposes a locking mechanism 21 for locking the receiving material C to the water receiving portion F in consideration of workability . FIG. The water transfer introduction part D which consists of a combination of the round shape and the inwardly inclined part 22 is intended to improve the water collection effect .
[0015]
FIG. 17 shows an eaves structure in which the outer side wall 6 is formed at the same position as the vertical line (a).
[0016]
FIG. 18 shows an eaves wall structure in which the outer side wall 6 is formed at a position outside the vertical line (a).
[0017]
FIG. 19 (a) is formed from two members of the water receiving portion F, the outer side wall 6 is formed so as to be movable about a fulcrum 23, as shown in FIG. 19 (b), the vertical line in the winter i The tip of the outer side wall 6 is formed at an inner position, and the tip of the outer side wall 6 is formed at an outer position than the vertical line A when there is a lot of rain. It is the eaves wall structure which made it possible to form the front-end | tip of the outer side wall 6 in the same position.
[0018]
【The invention's effect】
As described above, according to the eaves structure according to the present invention, (1) the drainage channel is prevented from being clogged with dust and maintenance work is saved, and (2) the eaves is not damaged due to falling snow, etc. Improve sexiness. (3) Eaves can be used even in snowy areas. (4) In the eaves bowl, by adopting a shape and a hydrophilicity-improving material in which the Coanda effect and the teapot effect function effectively, the above effect can be continuously exhibited. In addition, if a snow melting device is used in combination, (5) it is possible to prevent a water leakage accident to the indoor side due to “sugamore” in winter. (6) The inside of the eaves does not freeze. (7) By simultaneously melting snow on the roof surface and melting snow in the eaves, it is possible to quickly and reliably carry out rainwater flow (melting snow) in winter. There are features and effects.
[0019]
In FIG. 21A, the water receiving portion F is formed by two members so that the outer side wall 6 can move around the fulcrum 24, and as shown in FIG. The tip of the outer side wall 6 is formed at an inner position, and the tip of the outer side wall 6 is formed at an outer position than the vertical line A when there is a lot of rain. It is the eaves wall structure which made it possible to form the front-end | tip of the outer side wall 6 in the same position.
[0020]
【The invention's effect】
As described above, according to the eaves structure according to the present invention, (1) the drainage channel is prevented from being clogged with dust and maintenance work is saved, and (2) the eaves is not damaged due to falling snow, etc. Improve sexiness. (3) Eaves can be used even in snowy areas. (4) In the eaves bowl, the above effect can be continuously exhibited by adopting a hydrophilicity improving material for the receiving material having improved shape and wettability in which the Coanda effect and the teapot effect function effectively. . In addition, if a snow melting device is used in combination, (5) it is possible to prevent a water leakage accident to the indoor side due to “sugamore” in winter. (6) The inside of the eaves does not freeze. (7) By simultaneously melting snow on the roof surface and melting snow in the eaves, it is possible to quickly and reliably carry out rainwater flow (melting snow) in winter. There are features and effects.
[Brief description of the drawings]
FIG. 1 is an explanatory view showing a typical example of an eaves structure according to the present invention.
2 is a cross-sectional view of the roll line of FIG. 1 and a cross-sectional view of the eaves.
FIG. 3 is an explanatory view showing a deformation state of a conventional eaves bowl.
FIG. 4 is a partially enlarged view showing a surface state of a receiving material .
FIG. 5 is an explanatory view showing an extracted round shape of the outer tip of the receiving material .
FIG. 6 is an explanatory view showing another example of the eaves-holding structure.
FIG. 7 is an explanatory diagram showing another example of the eaves-holding structure.
FIG. 8 is an explanatory diagram showing another example of an eaves-holding structure.
FIG. 9 is a perspective view showing another example of the eaves-holding structure.
FIG. 10 is an explanatory diagram showing another example of an eaves-holding structure.
FIG. 11 is an explanatory view showing another example of the eaves-holding structure.
FIG. 12 is an explanatory diagram showing another example of an eaves structure.
FIG. 13 is an explanatory diagram showing another example of the eaves-holding structure.
FIG. 14 is an explanatory diagram showing another example of an eaves-holding structure.
FIG. 15 is an explanatory diagram showing another example of the eaves-holding structure.
FIG. 16 is an explanatory view showing another example of the eaves-holding structure.
FIG. 17 is an explanatory diagram showing another example of an eaves-holding structure.
FIG. 18 is an explanatory diagram showing another example of an eaves structure.
FIG. 19 is an explanatory diagram showing another example of the eaves-holding structure.
[Explanation of symbols]
A eaves structure B roof material C receiving material D water transfer introduction part E water inlet F water receiving part G eaves h hanger tree R rain water Ra engaging piece α snow β eaves metal fitting γ fixing tool i vertical line 1 fixing part 1a Locking piece 2 Rain water reversing piece 3 Draining upper surface 3a Draining protrusion 4 Right-angle side wall 5 Bottom piece 6 Outer side wall 7 Receiving material surface 8 Hydrophilic paint or hydrophilic film 9 Groove 10 Sand etc. 11 Convex rib 12 Upper locking piece 13 Joint piece 14 Snow melting device 15 Drainer 16 Vertical chamfer 17 Deceleration protrusion 18 Notch 19 Floating part 20 Reticulated lid 21 Locking mechanism 22 Inclined part
23 fulcrum

Claims (1)

A water transfer introduction part provided with a receiving material coated or stuck with a hydrophilic paint or hydrophilic film that receives rain water falling from the eaves, and a receiver having a water inlet opening upward near the lower end of the water transfer introduction part In the eaves ridge structure formed by forming a water portion, the eaves ridge structure is characterized in that the water inlet is arranged on the inner side that does not protrude from the vertical line at the outer tip of the receiving member.

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