JPH09287254A - Eaves gutter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an eaves gutter improving rigidity against stress from the outside by providing a plurality of wave-like ribs side by side along the lengthwise direction on the inner circumferential face of a water passing groove. SOLUTION: Wave-like ribs 7 provided on the inner circumferential face of the water passing groove 10 of an eaves gutter 1 are formed out of resin of polyvinyl chloride and the like containing reinforcing fiber. The wave-like rib 7 is formed into a waveform alternately continuing mountain parts and valley parts in the lengthwise direction of the eaves gutter 1, and a plurality of ribs are respectively provided side by side on the inner faces of a bottom plate 2, a front side plate 3, and a rear side plate 4. The intervals are equal widths in the direction perpendicular to the length direction, and continued recesses of shallow bottom is presented in the lengthwise direction. When bending stress is applied to the eaves gutter 1, a stress acting line is extended over either of the mountain part and the valley part of the wave-like ribs 7, and reinforcing effect due to the wave-like ribs acts in all the directions of the eaves gutter 1.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an eaves gutter.

[0002]

2. Description of the Related Art Conventionally, as eaves gutters, those formed by bending a metal plate by pressing or the like and those formed by resin extrusion molding have been generally used. Also,
There are various shapes of eaves troughs depending on the use and design, but in each case there is a water passage groove that opens upward, and the surface inside this water passage groove is generally a smooth surface. It was a thing.

[0003]

By the way, eaves gutters are often subjected to external stress due to various factors. For example, when eaves are constructed on the eaves, they are deformed by stress during construction or due to strong wind and rain. Or, when it is transported, it may be deformed by the load such as loading packaging. In such a case, when the stress applied to the eaves gutter disappears, the ridge will be restored to its original shape by the elastic force, but if the above stress is large enough to exceed the elastic deformation of the eaves gutter, strain will remain. The original shape may not be restored. Therefore, in eaves gutter, it is desirable to further increase the rigidity.

The present invention has been made in view of the above circumstances, and provides an eaves gutter with improved rigidity against external stress.

[0005]

In order to solve the above problems, the eaves gutter according to the present invention is characterized in that a plurality of corrugated ribs along the longitudinal direction are arranged in parallel on the inner peripheral surface of the water passage groove. Is.

In this eaves trough, the corrugated ribs provided along the longitudinal direction on the inner peripheral surface of the water passage have a reinforcing effect to improve bending strength, and at this time, the corrugated ribs have a corrugated shape. Therefore, the bending stress acting on the eaves gutter 1 is in a direction intersecting with the corrugated ribs no matter which direction the bending stress is applied to. Further, since the corrugated ribs are formed on the inner peripheral surface, they cannot be seen from the outside, and the appearance design is not impaired. Here, the corrugated shape of the corrugated rib is not particularly limited, but it is preferable that the corrugated rib does not intersect, and for example, a shape such as a sine wave or a sawtooth shape can be exemplified.

In the present invention, it is preferable that the interval between the corrugated ribs is continuous in the longitudinal direction.
That is, when the corrugated ribs intersect with each other and the distance between them is interrupted in the longitudinal direction, the rainwater flowing in the water passage groove is hindered, and water is likely to collect in the water passage groove.

Further, in this case, it is preferable that the corrugated ribs are provided in parallel so as to correspond to each other in corrugated shape. That is, since the corrugated ribs are provided in parallel so as to correspond to each other in the corrugated shape, the interval between the adjacent corrugated ribs becomes constant, and the rainwater stably flows through the recesses between the corrugated ribs. .

Further, in the present invention, it is preferable that the corrugated ribs are made of a resin containing reinforcing fibers. By forming the corrugated ribs from the resin containing the reinforcing fiber, the corrugated ribs themselves can be made strong, and the reinforcing effect by the corrugated ribs is also improved.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An eaves gutter according to an embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing an eaves gutter according to an embodiment of the present invention. FIG. 2 is an enlarged perspective view of a part of the eaves gutter according to the embodiment.

As shown in the figure, the eaves gutter 1 according to the embodiment is
A plurality of corrugated ribs 7 are provided in parallel on the inner peripheral surface of the water passage groove 10 along the longitudinal direction.

The eaves trough 1 is a rectangular eaves trough composed of a bottom plate 2, a front side plate 3 and a rear side plate 4 standing up from the front and rear side edges of the bottom plate 2, and the surface layer of which is a metal plate as a core material. The structure is covered with resin such as polyvinyl chloride. At the upper end portions of the front side plate 3 and the rear side plate 4, front facing ear 5 is provided.
And a rear ear 6 are provided respectively. The eaves gutter 1 can be designed in various other shapes, and the material composition may be a molded product made only of a metal plate or a molded product made of only a resin. It can be changed.

The corrugated ribs 7 provided on the inner peripheral surface of the water passage 10 of the eaves gutter 1 are made of a resin such as polyvinyl chloride containing reinforcing fibers. The method of forming the corrugated ribs 7 is not particularly limited, but, for example, a method of forming a resin in a molten state on the smooth inner peripheral surface of the water passage groove 10 by drawing a corrugated shape can be adopted. The resin composition forming the corrugated ribs 7 is not particularly limited, but if the same kind of resin as the surface layer resin of the eaves gutter 1 is selected, good adhesion can be obtained and peeling or the like is difficult, which is preferable. It is a thing. Further, as the reinforcing fiber, a known fiber component can be used. For example, when glass fiber is used, the adhesion with a resin such as polyvinyl chloride is good, a good reinforcing effect is exhibited, and it is easily available. However, it is preferable.

Further, the corrugated rib 7 is formed in a corrugated shape in which peaks and valleys are alternately continuous in the longitudinal direction of the eaves gutter 1. A plurality of the corrugated ribs 7 are arranged side by side on the inner surfaces of the bottom plate 2, the front side plate 3, and the rear side plate 4, respectively. The corrugated ribs 7 and 7 that are adjacent to each other are parallel so that the corrugated shapes are in phase with each other, and they do not intersect, and their intervals are equal in width in the direction perpendicular to the longitudinal direction. To form a shallow recess that is continuous in the longitudinal direction.

In this eaves trough 1, the corrugated ribs 7 have a reinforcing effect to improve bending strength. At this time, when the corrugated ribs 7 have a corrugated shape, when bending stress is applied to the eaves trough 1. The line on which the stress is applied extends over either the peaks or the troughs of the corrugated rib 7 so that the reinforcing effect of the corrugated rib 7 works in all directions in the eaves gutter 1. Further, since the corrugated rib 7 is formed on the inner peripheral surface of the eaves gutter 1, it cannot be seen from the outside, and the design of the appearance is not impaired. Further, since the interval between the adjacent corrugated ribs 7, 7 is constant and a continuous recess is formed in the longitudinal direction, the rainwater that has flowed into the water passage 10 will flow through the recess without interruption. , Stable rainwater flow is secured.

[0017]

According to the eaves gutter according to the present invention, the bending strength is improved by the reinforcing effect of the corrugated ribs provided along the longitudinal direction on the inner peripheral surface of the water passage groove. Further, since the corrugated ribs are formed on the inner peripheral surface, they cannot be seen from the outside, and the appearance design is not impaired.

Further, in the present invention, when the interval between the corrugated ribs is continuous in the longitudinal direction, the rainwater flowing in the water passage does not have a recess between the corrugated ribs along the longitudinal direction. As a result, the water will flow, and good water flow in the water flow groove will be secured.

Further, in this case, if the corrugated ribs are provided in parallel so as to correspond to each other in the corrugated shape,
The interval between the adjacent corrugated ribs is constant, and the rainwater flowing in the water passage flows more stably through the recess between the corrugated ribs. Therefore, better water flow in the water flow groove is secured.

Further, in the present invention, when the corrugated ribs are made of a resin containing reinforcing fibers, the corrugated ribs themselves can be made rigid, and the reinforcing effect by the corrugated ribs is further improved. You can

[Brief description of drawings]

FIG. 1 is a perspective view showing an eaves gutter according to an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a part of an eaves gutter according to the same embodiment.

[Explanation of symbols]

 1 Eaves gutter 2 Bottom plate 3 Front side plate 4 Rear side plate 5 Front ear 6 Rear ear 7 Corrugated rib 10 Water passage groove

Claims (4)

[Claims] 1. An eaves trough, characterized in that a plurality of corrugated ribs extending in the longitudinal direction are arranged in parallel on the inner peripheral surface of the water passage. 2. The eaves gutter according to claim 1, wherein the intervals between the corrugated ribs are continuous in the longitudinal direction. 3. The eaves gutter according to claim 2, wherein the corrugated ribs are provided in parallel so as to correspond to each other in corrugated shape. 4. The corrugated rib is formed of a resin containing a reinforcing fiber.
One of the listed eaves gutters.