JP3490264B2 - Rain gutter connection structure - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a gutter connection structure for preventing raindrops from directly falling under eaves along the outer surface of a gutter. It is. 2. Description of the Related Art With the recent diversification and modernization of housing designs, rain gutters are not limited to those having a conventional semi-circular cross-sectional shape, but are of various shapes. Has been Among them, in particular, for the purpose of improving the design of the eaves of a house, a rain gutter having an irregular cross-sectional shape in which the outer surface of the rain gutter is inclined backward to introduce rainwater from the roof has been proposed. I have. [0003] In the case of a rain gutter having the above-mentioned irregular cross-sectional shape, raindrops falling on the rain gutter, although excellent in design, are formed outside the rain gutter. There has been a problem that the outer surface of the rain gutter is contaminated by rainwater traveling down the eaves along the side surface and rainwater traveling on the outer surface of the rain gutter, thereby deteriorating the appearance. By the way, in order to solve this problem,
For example, Japanese Unexamined Patent Publication (Kokai) No. 3-217747 discloses a rain gutter having a groove-shaped or stepped water-stop surface formed on a front wall of a gutter main body and a through-hole formed at the bottom of the water-stop surface. Rain gutters have been proposed in which rain water received on the water surface is introduced into a rain water passage formed in a gutter body. In the case of this rain gutter, since the cross-sectional shape of each wall of the gutter main body is formed in a straight line, the gutter main body is greatly deformed, and since each wall is bent, the adhesion between the gutter main body and the connecting member is poor. However, there is a problem that water leakage easily occurs. Also, the number and size of the through holes are limited so that the strength of the rain gutter is not reduced by the through holes formed at the bottom of the water stop surface. Stagnation or rainwater may overflow during heavy rain,
There is a bulge of the gutter body below the water stop surface, and it is not possible to completely eliminate the fact that the outer surface of the rain gutter is contaminated by rainwater transmitted on the outer surface of the rain gutter. There was a problem of worsening. Furthermore, since the through hole is formed at the bottom of the water stop surface, there is a problem that the manufacturing cost of the rain gutter increases in relation to the manufacturing method of the rain gutter. SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional rain gutter, a first object of the present invention is to provide a rain gutter in which the deformation (bending) of the gutter main body is small and water leakage hardly occurs. Further, the present invention can surely prevent raindrops from directly falling under the eaves along the outer surface of the rain gutter, and also allows rainwater received by the gutter main body to pass through the rainwater passage formed in the gutter main body. It is a second object of the present invention to provide a rain gutter capable of reducing the manufacturing cost of the rain gutter by eliminating through holes for introduction and making the cross-sectional shape uniform. [0007] The present invention also provides a method for connecting adjacent gutter bodies to each other.
It is a third object of the present invention to provide a rain gutter connection structure that can easily connect the gutter main body without moving the gutter body in the longitudinal direction. Further, the present invention provides a rain gutter connection structure capable of smoothly draining rainwater received in a sub rainwater passage at a connection position into a rainwater passage formed in a gutter main body. The purpose of. [0009] To achieve the first to fourth objects, the gutter connection structure of the present invention comprises a front wall and a front wall.
It consists of a rear wall facing the wall and a bottom wall, and introduces rainwater
Open one side of the upper part to form a main rainwater passage inside
And among the walls, at least a bottom wall is curved outward.
So that the middle part of the front wall of the gutter body projects outward
Formed so that the lower front wall of the front wall extends obliquely upward.
Forming a protruding wall continuous in the longitudinal direction of the gutter body,
At the end of the gutter body by the upper surface of the upper front wall and the inner surface of the protruding wall
Consists of a gutter body that forms a secondary rainwater passage that guides rainwater toward
In the connection structure of the rain gutter, it is formed on one upper edge of the gutter main body.
The engaging part of the connection member is locked to the ear part
And rotate the connecting member so that the connecting member follows the gutter body,
An engaging portion of the connecting member is provided on an ear formed on the other upper edge of the gutter main body.
And an ear formed on the upper edge of the gutter body
The notch is provided at a substantially intermediate position in the longitudinal direction between the two engaging portions
While forming each, the gap between the adjacent gutter body
Connecting the stopper for defining to the rear wall of the gutter body
Projecting only on the inner surface of the rear piece of the member, the secondary rainwater passage of the gutter body
To the main rainwater passage formed in the gutter body at the position of the connecting member.
It is characterized by communicating . In this case, a projecting portion that projects outward in the middle of the front wall can be formed, and the lower front wall of the front wall can be formed to be curved outward, and the bottom wall or lower front wall can be curved. Has a radius of curvature of 150
It is desirable to set it to 500 mm. [0010] This makes it possible to reduce the deformation of the gutter main body and to eliminate the bending of each wall, especially the bottom wall, to improve the adhesion between the gutter main body and the connecting member, and to reliably prevent water leakage. be able to. In addition, while forming a projecting portion that protrudes outward in the middle of the front wall, the lower front wall of the front wall is formed to be curved outward, or the curvature radius of curvature of the bottom wall or the lower front wall, By setting the thickness to 150 to 500 mm, the deflection of each wall of the gutter main body can be further reduced,
The adhesion between the gutter body and the connecting member can be further improved. [0011] formed so as to protrude the middle of the front wall of the trough body outwardly, longitudinally projecting wall continued gutter body so as to extend the lower front wall of the front wall obliquely upward And a secondary rainwater passage that guides rainwater toward the end of the gutter body by the upper surface of the upper front wall of the gutter body and the inner surface of the protruding wall.
Causes raindrops to fall directly down the eaves along the outer surface of the gutter
By forming a secondary rainwater passage in the gutter body.
In addition to preventing rainfall, the rainwater received in the
There is no through hole to introduce into the rainwater passage formed in the gutter body
The gutter production costs
Can be reduced. Further, locking the engaging portion of the connecting member to the ear portion formed in one of the upper edge of the gutter body, by rotating the connecting member around the locking point, the connecting member to the gutter body Along the edge, the engaging portion of the connecting member is fitted to the ear formed on the other upper edge of the gutter main body, thereby forming the upper end of the gutter main body.
The engaging part of the connecting member is locked to the ear part
By rotating the connecting member around the center,
Insert the gutter body, align the connecting member with the gutter body,
Fit the engaging part of the connection member to the ear formed on the other upper edge of
By doing so, it is possible to integrate the gutter main body and the connection member.
it can. Further, the auxiliary rainwater passage of the trough body, at the position of the connecting member which is disposed at an end of the trough body, by which is adapted to communicate with the main rainwater passage formed gutter body, the sub rainwater passage
Rainwater collected in the main rainwater passage
You. Further, by connecting the main gutter body formed in the gutter main body to the main rainwater passage through the gap between the adjacent gutter main bodies, the connection structure of the rain gutter can be simplified. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a gutter connection structure according to the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of a gutter used in the gutter connection structure of the present invention. The gutter body (eave gutter) 1 of this rain gutter is
It is installed and used at the eaves of a house.
A rear wall 12 facing the front wall 11, and a bottom wall 13,
Open one side of the top to introduce rainwater from the roof,
The main rainwater passage 10 is formed inside, and the whole has a substantially pentagonal rectangular cross-sectional shape. And the front wall 11, the rear wall 12,
Each of the bottom walls 13 has a linear shape with a substantially flat surface, and has an appearance as a square gutter. The front wall 1
1 is formed so that the middle part thereof protrudes outward (forward), the upper front wall 11a of the upper half extends obliquely rearward and upward, and the lower front wall 11b of the lower half obliquely projects forward. A projecting portion 14 that extends upward and projects outward in the middle of the front wall 11 is formed. The gutter main body 1 can be formed by a method such as extrusion molding or pultrusion molding using a metal such as synthetic resin or aluminum. In this case, the thickness of each of the walls 11, 12, and 13 is required as a rain gutter. 1 to 2 m depending on the material and the like so as to have a predetermined strength.
m. In this case, the lower front wall 11 of the front wall 11
b, the upper end of the gutter main body 1 is formed to extend obliquely upward to form a protruding wall 15 continuous in the longitudinal direction of the gutter main body 1, and the gutter is formed by the upper surface of the upper front wall 11 a of the gutter main body 1 and the inner surface of the protruding wall 15. A non-porous auxiliary rainwater passage 16 that guides rainwater toward the end of the main body 1
Is formed. With such a configuration, the rainwater falling on the upper surface of the upper front wall 11a is received by the auxiliary rainwater passage 16 along the upper surface. Then, even in the case of a strong wind or the like, the rainwater falling on the upper surface of the upper front wall 11a of the gutter main body 1 is reliably received by the sub rainwater passage 16, and the rainwater can be guided toward the end of the gutter main body 1. As described above, the distal end 15a of the protruding wall 15 is bent obliquely rearward and upward so as to be substantially parallel to the upper surface of the upper front wall 11a of the gutter main body 1, and
An auxiliary rainwater passage 16 having its tip bent horizontally to open obliquely upward parallel to the upper surface of the upper front wall 11a.
Is formed. Further, on the upper edges of the front wall 11 and the rear wall 12,
The strength of the gutter main body 1 is increased, the rigidity is improved to prevent meandering, and the ear portions 11c and 12a to be engaged with and held by the gutter hanging bracket and the connecting member 2 are formed. As described above, the upper surface of the upper front wall 11a of the gutter main body 1 and the inner surface of the protruding wall 15 formed by extending the lower front wall 11b to extend obliquely upward, toward the end of the gutter main body 1. By forming the non-porous sub-rainwater passage 16 for guiding rainwater, the rainwater falling on the upper surface of the upper front wall 11a of the front wall 11 is received by the sub-rainwater passage 16 and the overhanging portion 14 of the front wall 11 is formed. This prevents raindrops from falling on the surface of the lower front wall 11b of the front wall 11, that is, the outer surface of the lower front wall 11b, and prevents the raindrops from directly falling under the eaves along the surface of the front wall 11 of the gutter main body 1. It is possible to reliably prevent the occurrence of the problem and to make the cross-sectional shape of the gutter main body 1 uniform.
The rainwater received by the sub rainwater passage 16 is drained to the main rainwater passage 10 of the gutter main body 1 at the position of the connecting member 2 as described later. The upper front wall 11a and the lower front wall 1 of the gutter main body 1 are also provided.
1b and the bottom wall 13, among which the bottom wall 13 is preferably curved outward with a predetermined radius of curvature R11a, R11b, R13, respectively. Then, the curvature radii R11a, R11b, R13 in the case of bending are:
Although it can be set arbitrarily according to the size of the gutter main body 1 and the like, for example, it is desirable to set the length L to about 2 to 4 times, more preferably about 3 times the length L of the bottom wall 13. If it is a square gutter, it is desirable to form it so as to have a radius of curvature of 150 to 500 mm. In this case, if the radius of curvature is larger than 500 mm, the degree of curvature is too small to reduce the deformation, and each wall is bent, particularly, bent inward, resulting in poor adhesion to the connection member 2. It becomes. On the other hand, if the radius of curvature is smaller than 150 mm, the gutter main body 1 becomes too round, and the appearance as a square gutter cannot be maintained. The rear wall 12 may also be curved with a similar radius of curvature. With such a configuration, the strength of the gutter main body 1 and the adhesion to the connecting member 2 can be further improved. Thereby, the deformation of the gutter main body 1 can be reduced, and further, each wall of the gutter main body 1 does not bend inward, and the adhesion between the outer surface of the gutter main body 1 and the inner surface of the connection member 2 is improved. Thus, water leakage can be prevented. FIGS. 2 and 3 show an example of the connecting member 2 disposed at the end of the gutter main body 1 shown in FIG. This connecting member 2
A front piece 21 composed of an upper front piece 21a and a lower front piece 21b, and a rear piece 22 facing the front piece 21, which is referred to as a gutter joint used to connect the gutter bodies 1 to each other. Like the gutter body 1, the bottom piece 23 has a substantially pentagonal rectangular cross-sectional shape with an open upper side, so that the gutter body 1 can be fitted closely inside. The connecting member 2 can be molded by a method such as injection molding using a synthetic resin or the like.
The thicknesses of 1, 2, and 23 are set to 1 to 2 depending on the material and the like so as to have a predetermined strength required as the connection member 2.
mm. In this case, in the middle of the front piece 21 where the upper front piece 21a and the lower front piece 21b are connected, an extension piece 24a extending obliquely forward from the upper end of the lower front piece 21b.
And a connecting piece 24b connected obliquely rearward substantially parallel to the upper front piece 21a and a cover piece 24c connected further obliquely downward so as to form a C-shaped engaging portion 24 opened inward. To The upper edges of the front piece 21 and the rear piece 22
An engaging portion 21 for engaging with the ear portions 11c and 12a formed on the upper edge of the gutter main body 1 to firmly connect with the gutter main body 1.
c and 22a are formed. The engaging portions 21c and 22a are formed with cutout portions 21d and 22b at substantially middle positions in the longitudinal direction, respectively, so that the engaging portions 21c and 22a can be deformed as necessary, and a connection operation described later can be performed. Make it easier to do. On the inner surface of the rear piece 22, a stopper 2 for defining a gap between the adjacent gutter bodies 1, 1 connected to the connecting member 2 on both sides in the center in the longitudinal direction.
5, 25 are protruded. The stoppers 25, 25 can be provided on the front piece 21 or the bottom piece 23. However, from the viewpoint of the connection workability between the flow of rainwater and the gutter main body 1, the stoppers 25 are preferably provided on the rear piece 22 as in the present embodiment. To be provided. The upper front piece 21a, the lower front piece 21b, and the bottom piece 23 of the connecting member 2, and particularly, the bottom piece 23 is formed to be curved outward with a predetermined radius of curvature R21a, R21b, R23, respectively. Is preferred. Note that the curvature radii R21a, R21b, and R23 in the case of bending are:
Upper front wall 11a, lower front wall 11 of gutter main body 1 formed in a curved shape
b and the radius of curvature R11a, R11b, R13 of the bottom wall 13
Set according to. Thereby, the gutter main body 1
Of the connection member 2 and the inner surface of the connection member 2 to prevent water leakage. Note that the gutter main body 1 and the connection member 2 can be further fixed with an adhesive or the like. When the rear wall 12 of the gutter main body 1 is formed to be curved outward, the rear piece 22 of the connecting member 2 is also formed to be curved outward. Next, a method of connecting the gutter main body 1 and the connecting member 2 will be described. First, the two gutter bodies 1, 1
The connecting member 2 is installed at the eaves in such a manner that a gap is formed between the adjacent gutter bodies 1 and 1 in accordance with the interval between the stoppers 25 formed on the inner surface of the rear piece 22 of the connecting piece 2. Then, FIG.
As shown in FIG. 3, the rear piece 22 of the connecting member 2 is fitted to the lug 12a formed on the upper edge of the rear wall 12 of the gutter main body 1 while being positioned by the stopper 25 formed on the inner surface of the rear piece 22 of the connecting member 2. The engaging portion 22a formed on the upper edge of the 22 is locked. In order to fit the gutter main body 1 into the connection member 2 and rotate the connection member 2 along the gutter main body 1 while rotating the connection member 2 upward around this locking point, Expansion,
That is, the connecting member 2 is deformed so that the interval between the engaging portion 22a formed on the upper edge of the rear piece 22 of the connecting member 2 and the engaging portion 21c formed on the upper edge of the front piece 21 is increased. in this case,
The gutter main body 1 may be deformed so that the interval between the ear 12a formed on the upper edge of the rear wall 12 of the gutter main body 1 and the ear 11c formed on the upper edge of the front wall 11 is reduced. As a result, FIG.
As shown in FIG. 5, the gutter body 1 is fitted into the connection member 2, and the connection member 2 is moved along the gutter body 1 and connected to the ear 11 c formed on the upper edge of the front wall 11 of the gutter body 1. Front piece 2 of member 2
By fitting the engaging portion 21c formed on the upper edge of the gutter 1, the adjacent gutter main bodies 1, 1 and the connecting member 2 are integrated.
At this time, since the walls 11a, 11b, and 13 of the gutter main body 1 are curved outward, the walls 11a, 11b, and 13 do not bend inward even when a force is applied during integration. Furthermore, since a slight difference in the radius of curvature between each wall of the gutter body 1 and each piece of the connection member 2 is absorbed, the adjacent gutter bodies 1 and 1 and the connection member 2 can be integrated in a close contact state. . When the adjacent gutter bodies 1 and 1 are connected by the connecting member 2, the pieces 21, 22 and 2 of the connecting member 2
The engaging portion 24 holds the projecting wall 15 while the wall 3 is in close contact with the walls 11, 12 and 13 of the gutter main body 1. Therefore, the upper surface of the upper front wall 11a of the gutter body 1 and the protruding wall 15
And the inner surface of the cover piece 24c of the connecting member 2 forms the water passage space 3, and the adjacent gutter main body 1,
A gap between the stoppers 25 is formed between them. Therefore, the secondary rainwater passage 16 of the gutter body 1
The rainwater received by the gutter body 1 can flow into the water passage space 3 formed at the position of the sub-rainwater passage 16 of the gutter main body 1 and can pass therethrough. Water can be drained to the main rainwater passage 10 formed in the gutter main body 1 through the gap between the gutters 1 and 1. In this embodiment, the gutter joint is exemplified as the connecting member. However, the configuration of the present invention can be applied to a gutter collector, a gutter bend, a gutter stop, and the like. According to the rain gutter connection structure of the present invention, at least the bottom wall of each wall is formed to be curved outward, so that the deformation of the gutter main body, especially the bottom wall, can be prevented. In addition to being able to reduce the size, it is possible to eliminate the bending of each wall of the gutter main body, improve the adhesion between the gutter main body and the connecting member, and reliably prevent water leakage. In addition, while forming a projecting portion that protrudes outward in the middle of the front wall, the lower front wall of the front wall is formed to be curved outward, or the curvature radius of curvature of the bottom wall or the lower front wall, By setting the thickness to 150 to 500 mm, deformation of the gutter main body and bending of each wall can be eliminated, and the adhesion between the gutter main body and the connecting member can be further improved. According to the rain gutter of the present invention, the middle part of the front wall of the gutter body is formed so as to protrude outward, and the lower front wall of the front wall extends obliquely upward to extend in the longitudinal direction of the gutter body. The upper front wall of the gutter main body is formed by forming a sub rainwater passage for guiding rainwater toward the end of the gutter main body by the upper surface of the upper front wall of the gutter main body and the inner surface of the protruding wall. The rainwater falling on the upper surface of the gutter is received by the secondary rainwater passage, and the overhang of the middle of the front wall prevents raindrops from falling on the surface of the lower front wall of the gutter main body, that is, the outer surface of the lower front wall, Raindrops can be reliably prevented from directly falling under the eaves along the surface of the front wall of the gutter body, and furthermore, there is no through hole for introducing the received rainwater into the rainwater passage formed in the gutter body, By making the cross-sectional shape uniform, the manufacturing cost of rain gutters can be reduced. . According to the rain gutter connection structure of the present invention,
The gutter body is inserted into the connection member by locking the engagement portion of the connection member to an ear formed on one upper edge of the gutter body, and rotating the connection member around this locking point. The gutter body and the connection member can be integrated by fitting the connection member along the gutter body and fitting the engagement portion of the connection member to an ear formed on the other upper edge of the gutter body. Accordingly, there is no need to move the gutter body in the longitudinal direction in order to insert the gutter body into the connection member, and it is possible to easily connect the adjacent gutter bodies, for example, with the gutter body attached to the eave. it can. In addition, by connecting the sub rainwater passage of the gutter main body to the main rain water passage formed in the gutter main body at the position of the connecting member disposed at the end of the gutter main body, the rain water received by the sub rain water passage is collected by the main rain water passage. Rainwater can be drained smoothly without stagnation of rainwater or overflow of rainwater in the passage. Further, by connecting the main gutter body formed in the gutter main body to the main rainwater passage through the gap between the adjacent gutter main bodies, the connection structure of the rain gutter can be simplified. Also, of each piece of the connection member,
By forming at least the bottom piece so as to be curved outward, it is possible to improve the adhesion to the gutter body, particularly the bottom wall of the gutter body, and to reliably prevent water leakage. In addition, connection
At a substantially middle position in the longitudinal direction of the engaging portion formed on the upper edge of the member
By forming each notch, the engaging part can be deformed
To make the connection work easier,
Only on the inner surface of the rear piece of the member is the clearance between adjacent gutter bodies
By providing a stopper to set the rainwater flow
It is possible to improve the connection workability between the gutter and the gutter body.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view showing one embodiment of a rain gutter used for a connection structure of a rain gutter according to the present invention. FIGS. 2A and 2B show an example of a connecting member used for a connection structure of a rain gutter according to the present invention, wherein FIG. 2A is a plan view and FIG. 3A is a cross-sectional view taken along line AA of FIG. 2B, FIG.
FIG. 3 is a sectional view taken along line BB of FIG. FIG. 4 is an explanatory view showing a method of connecting a gutter main body and a connection member. FIG. 5 is a plan view showing a state where the gutter main body and the connection member are connected. DESCRIPTION OF THE SYMBOLS 1 Gutter main body 10 Main rainwater passage 11 Front wall 11a Upper front wall 11b Lower front wall 11c Ear 12 Rear wall 12a Ear 13 Bottom wall 14 Overhang 15 Projection wall 16 Secondary rainwater passage 2 Connection member 21 Front piece 21a Upper front piece 21b Lower front piece 22 Rear piece 21c Engagement part 23 Bottom piece 22a Engagement part 24 Engagement part 3 Water passage space

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-8-326241 (JP, A) JP-A-8-13723 (JP, A) JP-A-5-287861 (JP, A) 56271 (JP, U) Japanese Utility Model Sho 56-41028 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E04D 13/064 E04D 13/068

Claims (1)

(57) Claims 1. A front wall, a rear wall facing the front wall, and a bottom wall.
Consists of, opening one side of the upper part to introduce rainwater,
A main rainwater passage is formed inside, and at least
Also make the bottom wall bend outward, and in the middle of the front wall of the gutter body
Are formed so as to project outward, and the lower front wall of the front wall is obliquely formed.
Continues in the longitudinal direction of the gutter body so that it extends upward
Forming a protruding wall, the upper surface of the upper front wall of the gutter body and the inner surface of the protruding wall
And a secondary rainwater passage that guides rainwater toward the end of the gutter body
In the connection structure for a rain gutter comprising the formed gutter body, the engaging portion of the connection member is locked to an ear formed on one upper edge of the gutter body, and the connection member is rotated around the locking point. The connecting member is moved along the gutter main body, and the engaging part of the connecting member is fitted to the ear formed on the other upper edge of the gutter main body.
The notch is provided at a substantially intermediate position in the longitudinal direction between the two engaging portions
While forming each, the gap between the adjacent gutter body
Connecting the stopper for defining to the rear wall of the gutter body
Projecting only on the inner surface of the rear piece of the member, the secondary rainwater passage of the gutter body
To the main rainwater passage formed in the gutter body at the position of the connecting member.
A connection structure for rain gutters, characterized in that they communicate with each other .