JPH1136530A - Gutter structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of mixture of a foreign matter to a gutter and the occurrence of an impact due to a fall of snow and to allow the use of this gutter at a snowy district by a method wherein an incoming water port is arranged at the inner side, not protruding from a vertical line of an external tip, of a receiving member to receive rain water falling from an eaves. SOLUTION: A gutter structure A comprises a fixing part 1 in a U-shape in cross section, a rainwater inversion piece 2 having a lower end protruded in a semicircular protrusion-form manner; a transmission water inlet D having a receiving material C consisting of a throating upper surface 3; and a water receiving part F having a water inlet E. The water receiving part F is formed approximately in a square pipe-forms state in cross section, and having the water inlet E formed such that the upper end of an external side wall 6 is bent internally at an acute angle. water R flows through the rain water inversion piece 2 of the receiving material C connected to a roof material B and flows down a rounding shape and around to the inner side, and falls downward at a boundary and is changed to a throating upper surface 3. Since the inlet port E is arranged in a position to cover falling rainwater R in a surplus range, all of flowing down rainwater R is collected. Meanwhile, since snow α, dead leaves, and refuse naturally vertically fall from the external tip of the rainwater inversion piece 2, the water receiving part F is prevented from breakage.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eaves gutter structure for preventing the impact of foreign matters and falling snow and enabling use in snowy areas.

[0002]

2. Description of the Related Art In a conventional eaves gutter, a gutter receiving rainwater is installed so as to open directly upward through a gutter fitting. Eaves gutters were hardly used for snowy areas.

[0003]

However, in this case, (a) falling leaves, dust and the like are unavoidable, and maintenance is troublesome. (B) It cannot withstand snow loads and its useful life is short. (C) It is necessary to enable the use of eaves gutters with simple construction even in snowy areas. And the like.

[0004]

According to the present invention, in order to eliminate such drawbacks, a receiving material is interposed on the way from the eaves to the eaves gutter to exert a Coanda effect and a teapot effect, thereby allowing rainwater to flow to a predetermined level. The present invention proposes an eaves gutter structure that prevents water from flowing down to a place, prevents foreign matter from entering, and prevents damage due to impact such as falling snow.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The eaves gutter structure according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a schematic diagram showing an example in which an eave gutter structure A is used in an eave part, and is composed of a water transmission introduction part D having a receiving material C and a water receiving part F having an inlet E. As the roofing material B, commercially available roofing materials such as various types of metal roofs such as a horizontally long roof, and cement-based new tiles and clay tiles can be used.

FIGS. 2 (a) and 2 (b) are an explanatory view cut along the roll line of FIG. 1 and a sectional view showing the eaves gutter G. A receiving member C is a fixing portion 1 having a U-shaped section. And a rainwater reversing piece 2 having a lower end of the fixing portion 1 projecting outward in a semicircular convex shape, and a draining upper surface 3 formed by bending the lower end of the rainwater reversing piece 2 horizontally inward. The water part F has a right-angled side wall 4 bent at a right angle downward at the tip of the draining upper surface 3, a bottom piece 5 having a lower end of the right-angled side wall 4 bent in parallel with the draining upper surface 3,
The end of the bottom piece 5 is formed in a substantially square pipe shape from the outer side wall 6 rising upward at a right angle, and the upper end of the outer side wall 6 is formed with an inlet port E bent inward at an acute angle. It goes without saying that various shapes other than this shape are possible. Materials include colored steel sheets, various metal materials,
It uses a synthetic resin material, and can employ a molding method such as extrusion, roll forming, bending, and press working.

FIG. 3 is an explanatory view showing a case where the conventional eaves gutter G is used in a snow-covered area. The snow cover α protrudes from the roof material B of the eaves, and protrudes into the eaves gutter G which opens upward. α
In this example, not only the eaves gutter G but also the eaves gutter metal fittings β are deformed, and the fixtures γ are seen to be lifted. In this state, the function of the eaves gutter is lost,
Water leakage outside the eaves gutter is inevitable, and there are even houses that do not use the eaves gutter G.

FIG. 4 shows that the receiving material surface 7 is formed as shown to further improve the wetting property.
(A) applies a hydrophilic paint or a hydrophilic film 8,
Or (b) a plurality of fine grooves 9 formed, (c) a silica sand or the like 10 sprayed, and a hydrophilic paint or hydrophilic film 8 applied or adhered to the surface And (d) show a plurality of convex ribs 11 formed. Further, when plastics or the like are used as the raw material, similar effects can be obtained as long as a material that improves hydrophilicity such as an antistatic agent is incorporated. The characteristics of the hydrophilic material such as the hydrophilic paint or the hydrophilic film 8 are as follows.
As shown in FIG. 4E, when the hydrophilicity is high, the contact angle θ between the contact surface and the water droplet (rainwater R) becomes small, and when the contact angle θ becomes large as shown in FIG. Get higher. Note that the range referred to as hydrophilicity is 0 ° ≦ θ ≦ 60 °.
When the contact angle θ is small, the contact area with the contact surface is large even if the volume of water is the same. When water flows on a slope, the larger the contact area, the greater the resistance and the lower the flow velocity. Therefore, it is difficult for rainwater to flow out from the eaves. And so on.

FIG. 5 shows the case where the shape of the radius of the tip end of the receiving material C is variously changed.
Are gradually reduced. Especially (a), (c)
5B shows a case where a draining protrusion 3a is formed at the boundary between the rainwater reversing piece 2 and the draining upper surface 3, and FIGS. 7B and 7D show a case where the draining upper surface 3 is formed as an inclined surface or a sawtooth draining upper surface 3 is formed.

Next, an example of construction of the eaves gutter structure according to the present invention will be briefly described. Now, in order to construct the eaves gutter structure A as shown in FIGS. 1 and 2 (a), it is assumed that an eaves gutter G as shown in FIG. 2 (b) 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 engaged with the engaging piece Ra of the first-stage roofing material B.
And fix it temporarily. The eaves gutter G is completed by continuously performing the above steps in the girder direction. It is to be noted that the strength can be increased by using the eaves gutter metal fittings β indicated by a one-dot chain line. Of course, a dedicated accessory is used for a connecting portion between the eaves gutters (not shown), a valley portion, and a descending ridge portion.

Next, the operation of the eaves gutter structure according to the present invention will be further described. When the rainwater R is introduced into the rainwater reversing piece 2 of the receiving material C connected from the roofing material B as shown 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 wraps around the inside of the plumb line a, and the draining upper surface 3
Falls down at the boundary where it changes to
The water inlet E is installed at a position that covers the area within a margin, so that all of the rainwater R flowing down can be collected. On the other hand, in the winter period in which the snow cover α indicated by the two-dot chain line exists, the snow wrapping around the eaves naturally falls from the outer tip of the rainwater reversing piece 2 in the plumb line a direction, so that the water receiving portion F is not damaged. Needless to say, fallen leaves, dust and the like fall naturally like the snow cover α, and hardly enter the water receiving portion F from the water inlet E.
In addition, it is possible to further improve the Coanda effect and the teapot effect by adding hydrophilicity to the entire roof.

The above is only one embodiment of the eaves gutter structure according to the present invention, and can be formed as shown in FIGS. 6 to 10 show other examples of the eaves gutter structure A, and FIG. 6 (a) extends the circumference of the rainwater reversing piece 2, inclines the draining upper surface 3, and furthermore, the direction of the water flow. FIG. 6 (b) shows a snow melting device 14 formed in the vicinity of the change of the water flow, and FIG.
7A is formed as shown in FIG.
FIG. 7 (b) is a view of FIG.
In FIG. 8A, a triangular projection 17 is formed from the roofing material B to the upper end of the receiving material C to reduce the flow rate of the rainwater R. FIG. 8A shows a draining upper surface 3 having a downwardly convex triangular shape. FIG. 8 (b) shows a water receiving portion F having a semicircular shape, and the eaves gutter β is inserted from a notch 18 partially formed on the upper surface 3. Further, the snow melting device 14 shown in FIG. FIG. 9 with the addition
(A), (b) and FIG. 10 (a) show the receiving material C and the water receiving part F formed separately, and FIGS. 9 (a) and 9 (b) show the drainage at the lower end of the rainwater reversing piece 2. FIG. 10 (a) shows an example of a rainwater reversing piece 2 formed by extrusion, and FIG. 10 (b) shows a gutter receiving member β formed of three members, and a receiving material C and water receiving portion. It is formed by dividing the portion F.

FIGS. 11 to 13 show other examples of the eaves gutter structure A. FIG. 11A shows a case where the receiving material C and the first-stage roofing material B are both used and the inclination of the eaves is reduced. FIG. 11 (b) shows a somewhat loosened floating portion 19 formed to reduce the flow velocity.
1 (a) is the same except that the floating portion 19 is not formed. FIG. 12 (a) shows silica roof 10 formed on both the roofing material B and the receiving material C (not shown, but the surface is hydrophilic). FIG. 12B is a view in which the water receiving portion F is included in the receiving material C in FIG. 11A and the cutouts 18 are formed at a constant pitch, and FIG. Is a large projection of the rainwater reversing piece 2 outward.

FIGS. 14 to 21 show another example of the eaves gutter structure A. FIG.
0 is formed so that dust does not enter, FIG. 14B is a diagram in which the water receiving portion F is formed to be small in FIG. 14A, and FIG. FIG. 14 (b)
15 (b) shows the receiving material C
And a water receiving portion F, and a locking mechanism 21 for locking the receiving material C to the water receiving portion F is provided, in consideration of workability.
FIG. 16 (a) shows a case where silica sand or the like 10 is formed on the surface of the rainwater reversing piece 2 (not shown, but the surface is covered with a hydrophilic paint or a hydrophilic film 8), and FIG. This is a water introduction section D composed of a combination of the shape and the inwardly inclined portion 22 to improve the water collecting effect.

FIG. 17 shows another example of the eaves gutter structure A, which is effective by disposing the snow melting device 14 at the boundary between the roofing material B and the rainwater reversing piece 2, near the water inlet E, and further on the bottom piece 5. The eaves gutter β supporting the water receiving part F is systematized to improve workability. Further, it is also possible to form a staggered groove 23 on the surface of the rainwater reversing piece 2 to reduce the flow velocity and improve the water collecting effect.

FIG. 18 shows an eave in which a snow melting device 14 (electricity, solar, etc.) is formed on the roof material and in the water receiving portion F so that the rainwater melted on the roof surface flows down quickly without freezing. The gutter structure A.

FIG. 19 shows the outer side wall 6 at the same position as the vertical line A.
Is an eaves gutter structure.

FIG. 20 shows an eaves gutter structure in which the outer side wall 6 is formed at a position outside the vertical line A.

FIG. 21A shows that the water receiving portion F is formed of two members and is formed so that the outer side wall 6 can move around the fulcrum 24. As shown in FIG. The tip of the outer side wall 6 is formed at a position inside the vertical line A, and the tip of the outer side wall 6 is formed at a position outside the vertical line A when the rain is heavy. This is an eaves gutter structure in which the tip of the outer side wall 6 can be formed at the same position as the vertical line b.

[0020]

As described above, according to the eaves gutter structure according to the present invention, it is possible to prevent clogging of the drainage channel due to dust and to save the trouble of maintenance, and also to prevent the eaves gutter from being damaged due to falling snow and the like, thereby improving durability. To improve. An eaves gutter can be used even in snowy areas. By adopting a shape and a hydrophilicity improving material in which the Coanda effect and the teapot effect function effectively in the eaves gutter, the above effects can be continuously exerted. In addition, if a snow melting device is used in combination, it is possible to prevent a water leak to the indoor side due to "spillover" in winter. The inside of the eaves does not freeze. Simultaneous snow melting on the roof surface and snow in the eaves gutter allows for rainfall in winter (snow melting)
Can be performed promptly and reliably. There are features and effects such as.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a typical example of an eaves gutter structure according to the present invention.

FIG. 2 is a cross-sectional view of a roll line of FIG. 1 and a cross-section of an eaves gutter.

FIG. 3 is an explanatory view showing a deformed state of a conventional eaves gutter.

FIG. 4 is a partially enlarged view showing a surface state of a receiving member.

FIG. 5 is an explanatory diagram extracting and showing a round shape of an outer front end of a receiving material.

FIG. 6 is an explanatory view showing another example of the eaves gutter structure.

FIG. 7 is an explanatory view showing another example of the eaves gutter structure.

FIG. 8 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 9 is a perspective view showing another example of the eaves gutter structure.

FIG. 10 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 11 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 12 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 13 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 14 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 15 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 16 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 17 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 18 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 19 is an explanatory view showing another example of the eaves gutter structure.

FIG. 20 is an explanatory diagram showing another example of the eaves gutter structure.

FIG. 21 is an explanatory diagram showing another example of the eaves gutter structure.

[Explanation of symbols]

 A eave gutter structure B roof material C receiving material D water introduction section E water inlet F water receiving section G eave gutter h batten R rainwater Ra engaging piece α snow cover β eave gutter fitting γ fixture a plumb line 1 fixed part 1a Locking piece 2 Rain water reversing piece 3 Draining upper surface 3a Draining projection 4 Right side wall 5 Bottom piece 6 Outer side wall 7 Receiving material surface 8 Hydrophilic paint or hydrophilic film 9 Concave groove 10 Silica sand etc. 11 Convex rib 12 Upper locking piece 13 Piece 14 Snow melting device 15 Drainer 16 Vertical plane 17 Deceleration projection 18 Notch 19 Floating part 20 Mesh lid 21 Locking mechanism 22 Inwardly inclined part 23 Staggered groove 24 Support point

Claims (1)

[Claims] An eaves gutter comprising a water introduction section provided with a receiving material for receiving rainwater falling from an eave, and a water reception section having a water inlet opening upward near a lower end of the water introduction section. An eaves gutter structure, wherein the water inlet is disposed inside the receiving member so as not to protrude from a vertical line at an outer end thereof.