JPH046422Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a gutter that is attached to the eaves of a building.

(Prior Art) Conventionally, it is generally known that a gutter is provided with ribs that are continuous in the longitudinal direction of the gutter body on each side of the bottom of the gutter body. When rainwater enters the hollow part formed by the inner surface of the rib and the inner surface of the gutter body from the connection part between the gutters, and the infiltrated rainwater freezes, the internal pressure in the hollow part increases, especially in the gutter body. Stress concentration acts on the intersection between the inner surface and the inner surface of the rib, and there is a risk that the intersection may be damaged by cracks or the like, resulting in water leakage to the outside.

As a solution to this drawback, a gutter as described in, for example, Japanese Utility Model Application Publication No. 61-52017 is known.

This conventional gutter has a curved surface at the intersection of the inner surface of the gutter body and the inner surface of the rib, which is particularly susceptible to damage such as cracks, so that when a load or impact is applied, the inner surface of the gutter body and the inner surface of the rib The aim was to alleviate the stress concentration acting on the intersections between the two and to prevent damage such as cracks from occurring there.

(Problem to be solved by the invention) However, in such conventional gutters, the strength is improved at the intersection between the gutter body and the ribs, but on the other hand, the strength of the gutter body in the area other than the intersection is improved. The strength does not necessarily improve, and since the gutter body and the ribs that form the hollow part are equal in strength, when the internal pressure of the hollow part increases due to freezing of rainwater that has entered the hollow part, the gutter body There was a risk that the hollow part would be damaged, and in that case, there was a problem that residual rainwater inside the hollow part would leak to the outside.

(Means for solving the problem) The present invention was made with the purpose of solving the above-mentioned problems. A rib having a vertical plate portion and a horizontal plate portion is provided continuously in the longitudinal direction of the gutter body, and the rib has a slit continuous in the longitudinal direction of the gutter body in the vertical plate portion, and The gutter is elastically deformable in the direction of opening and closing the slit.

(Function) In the gutter of the present invention, since slits are formed in the vertical plate portions of the ribs, even if rainwater enters between the gutter body and the ribs, the infiltrated rainwater easily flows out from the slits. Incidentally, even if rainwater accumulates between the gutter body and the ribs, and the accumulated rainwater freezes and the internal pressure increases, the ribs can elastically deform in the direction of opening the slits and can tolerate the stress.

In addition, when multiple gutters are stacked during transportation, inventory management, etc., the bottom of the upper gutter is placed on the rib of the lower gutter, and the rib closes the slit by elastic deformation. Therefore, the load of the upper gutter can be supported in the same way as before.

In addition, since the gutter of the present invention has a simple shape in which the ribs and slits are continuous in the longitudinal direction of the gutter body,
Can be efficiently molded by extrusion molding.

(Example) Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

First, the structure of the first embodiment shown in FIGS. 1 to 3 will be explained.

The gutter of this embodiment is integrally formed by extrusion molding a synthetic resin material, and has a longitudinal gutter body 1 having a bottom portion 11 and side wall portions 12 on both sides thereof.
0 and ribs 20 provided on each side of the bottom portion 11.

The side wall portions 12 of the gutter body 10 are formed to be inclined slightly outward and upward relative to the bottom portion 11, and an ear portion 1 having a hollow portion 13 is provided at the upper end of each side wall portion 12.
4 is formed.

In addition to being suspended by a hanging device, the ear portion 14 protects the side wall portion 12 from shocks applied during transportation or dropping, and loads applied during stacking, thereby preventing damage to the side wall portion 12.

The rib 20 is formed into an L-shaped cross section by a vertical plate part 21 and a horizontal plate part 22, and is provided continuously in the longitudinal direction of the gutter body 10. A hollow portion 30 is formed by the inner surface of the rib 20 and the inner surface of the gutter body 10.

Further, at the lower end of the vertical plate portion 21 of the rib 20, as shown in FIGS. 1 and 2, a gutter body 10 is provided.
A slit 23 is provided continuously in the longitudinal direction of the gutter body 10 between the bottom portion 11 of the gutter body 10 and the hollow portion 30 formed by the inner surface of the gutter body 10 and the inner surface of the rib 20. communicates with the outside.

Furthermore, the rib 20 has increased strength because the intersection 31 between the inner surface of the gutter body 10 and the inner surface of the rib 20 and the corner inner surface 32 of the rib 20 are formed into curved surfaces, as shown in FIG. Improvements are being made.

Next, the operation of the embodiment will be explained.

In the gutter of the embodiment, since the slit 23 is formed in the vertical plate portion 21 of the rib 20, the hollow portion 30 formed by the inner surface of the gutter body 10 and the inner surface of the rib 20
Rainwater that has entered the interior easily flows out.
Even if rainwater remains in the hollow part 30 and freezes, and the internal pressure of the hollow part 30 increases, the rib 30 elastically deforms in the direction of opening the slit 23 and tolerates the stress. Therefore, damage to the gutter body 10 side is prevented.

Furthermore, since the intersection 31 between the inner surface of the gutter body 10 and the inner surface of the rib 20 and the corner inner surface 32 of the rib 20 are reinforced as curved surfaces, damage to the rib 20 due to freezing of rainwater as described above can be prevented. .

Furthermore, as shown in FIG. 3, when multiple gutters are stacked during transportation, inventory management, etc., the bottom 11 of the upper gutter is placed on the rib 20 of the lower gutter, and the rib 20 is Since the slit 23 is closed by elastic deformation, the load of the upper gutter can be supported by the ribs 20 as in the conventional case, and the bottom part 11 and side wall part 12 of the gutter body 10 can be protected.

Moreover, production efficiency is also improved by molding the gutter of the present invention by extrusion molding.

Next, a second embodiment shown in FIG. 4 will be described.

In describing the second embodiment, the same components as those in the first embodiment are given the same reference numerals, and the explanation thereof will be omitted. Further, regarding the operations, explanations of operations similar to those of the first embodiment will be omitted.

In this embodiment, the vertical plate part 24 is divided into an upper member 241 and a lower member 242 at the lower part thereof, and a slit 25 is provided between the upper member 241 and the lower member 242.

Therefore, in the second embodiment, the lower member 242
Since the lower member 242 continuously intersects the bottom portion 11 of the gutter body 10, the strength of the bottom portion 11 is improved by the lower member 242, and it is also possible to prevent dirt from entering the hollow portion 30.

Although the embodiments of the present invention have been described above in detail with reference to the drawings, the specific configuration is not limited to these embodiments, and the present invention may be modified without departing from the gist of the present invention. included.

For example, the intersection between the inner surface of the gutter body and the inner surface of the rib does not necessarily have to be a curved surface, and simply forming a slit in the rib can sufficiently prevent damage to the gutter body.

(Effects of the invention) As explained above, in the gutter of the present invention, even if rainwater infiltrates between the gutter body and the ribs, the infiltrated rainwater is easily flushed out through the slits. Even if rainwater remains between the gutter body and the ribs and freezes, increasing the internal pressure, the ribs will elastically deform in the direction of opening the slits and can tolerate the stress, so the gutter body will not be damaged. In addition to preventing rainwater from leaking to the outside of the gutter, the ribs are also prevented from being damaged and the reinforcing effect can be maintained.

Additionally, when multiple gutters are stacked during transportation, inventory management, etc., the bottom of the upper gutter is placed on top of the ribs of the lower gutter, and the ribs elastically deform to close the slit. Similarly, the rib supports the load of the upper gutter and protects the gutter body.

In addition, since the gutter of the present invention has a simple structure in which the ribs and slits are continuous in the longitudinal direction of the gutter body,
Can be efficiently molded by extrusion molding.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the gutter of the first embodiment of the present invention;
Figure 2 is a sectional view showing the main part A of the gutter in Figure 1;
The figure is a front view showing the stacked state of the gutter according to the first embodiment, and FIG. 4 is a sectional view showing the main parts of the gutter according to the second embodiment of the present invention. 10... Gutter body, 11... Bottom, 20... Rib, 21, 24... Vertical plate portion, 23, 25... Slit.

Claims (1)

[Scope of utility model registration request] A rib having a vertical plate portion and a horizontal plate portion is provided continuously in the longitudinal direction of the gutter body on each of both sides of the bottom of the gutter body, and the rib is provided on the vertical plate portion in the longitudinal direction of the gutter body. It has a continuous slit and
A gutter characterized in that the slit is elastically deformable in directions of opening and closing.