JPH03147964A - Connecting structure of rain trough - Google Patents

Abstract

PURPOSE:To make connections water-proof simply and exactly as well as raise the appearance of the connecting structure by a method in which a water absorp tive resin is provided between the connections of rain troughes or between the connections between rain trough and connecting parts. CONSTITUTION:Connecting parts 5 having an inner surface form along the peripheral shape of eaves troughes 6 are set across the troughs 6. Couplers 5a and 5 to surrounded the upper edges of the lugs 6a of each eaves trough 6 and also to fix the parts 5 to each trough 6 are formed on the connecting part 5. A water absorptive resin 7 to be expanded in volume upon absorption of water is provided in two lines correspondingly to two troughs 6 to be con nected on the inner surface of the connecting part 5 in contact with the periph ery of each trough 6. As the resin 7, acrylic acid based polymers such as sodium polyacrylate of high polymerization degree may be used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a rain gutter connection structure for connecting rain gutter products (vertical gutter and two eaves gutter).

[Prior Art] Conventionally, there are connection means for connecting rain gutters to each other, such as those shown in FIGS. 8 and 9, for example.

The means shown in FIGS. 8(a) and 8(b) uses an adhesive 2, and a connecting member is arranged along the shape of the gutters and across the gutters in order to connect the gutters (not shown) to each other. 1 has the 8th
As shown in Figure (b), the fitting groove 1 into which the end of the gutter is fitted
a is formed on both sides of the inner circumference, and after applying the adhesive 2 along this fitting groove 1a, connect the end of each machine to the connecting member 1.
As a result, the gutters are connected to each other, and at the same time, the adhesive 2 fills the fitting gap and water is stopped at the connection between the gutters.

Further, the means shown in FIGS. 9(a) and 9(b) uses an elastic body (foam) 4 such as rubber, and a gutter (not shown) is used.
The connecting member 3, which is arranged along the shape of the gutter and across the gutter, has an engagement member that engages with the ear of the aircraft from the outer periphery of the gutter to fix the connecting member 3 to the gutter. A groove 3b for attaching an elastic body 4 is formed so as to protrude outward on both sides of the inner circumference, and the elastic body 4 is fitted into the groove 3b. And when connecting gutters.

Fit the ends of each machine from both sides of the connecting member 3, and
It is fixed by engaging a with the ears of each machine.

At this time, the outer circumferential surface of each machine and the elastic body 4 provided on the inner circumference of the connecting member 3 come into contact, and the elastic body 4 deforms to fill the fitting gap, and the connection between the gutter Water is stopped.

[Problems to be Solved by the Invention] However, with the gutter connecting means shown in FIGS. 8(a) and (b), if the adhesive 2 is not applied properly during gutter connection construction, it is difficult to ensure the fitting gap. In addition to being unable to fill the fitting gap, which may cause water leakage, there are other problems such as the fact that it takes a considerable amount of time and effort to apply adhesive 2 to reliably fill the fitting gap.

Moreover, in the gutter connection means shown in FIGS. 9(a) and 9(b).

Since the groove 3b for attaching the elastic body 4 is formed in the connecting member 3 so as to protrude outward, the thickness of the groove 3b (elastic body 4) is added to the thickness of the connecting member 3 itself, making a one-step difference noticeable. This greatly obstructs the horizontal line of the eaves and is unfavorable in terms of appearance.

The present invention aims to solve the above-mentioned problems, and provides a rain gutter connection structure that can reliably shut off water at the connection part through simple construction and also improves the appearance. With the goal.

[Means for Solving the Problems] In order to achieve the above object, the rain gutter connection structure of the present invention provides a connection structure between rain gutters or a connection member between a rain gutter and a connecting member. It is characterized by having a water-absorbing resin interposed between them.

[Function] In the rain gutter connection structure of the present invention described above, when water such as rainwater flowing in the rain gutter leaks from the fitting gap of the connection part,
Absorbed by water-absorbing resin. When this water-absorbing resin absorbs water, it rapidly expands in volume between the connecting member and the gutter, filling the fitting gap and preventing water leakage.

[Embodiments of the Invention] Examples of the present invention will be described below with reference to the drawings. 1 to 3 show a connection structure for a rain gutter according to a first embodiment of the present invention, and FIGS. 1(a) and 1(b) are perspective views for explaining the connection member and connection procedure; FIG. 2 is a sectional view of a main part of the above-mentioned connecting member, and FIGS. 3(a) to 3(d) are sectional views of a main part for explaining the operation of this embodiment.

As shown in FIGS. 1(a) and 1(b), the connecting member 5 in the structure of this embodiment is also similar to the conventional one.
, 6, it has an inner circumferential shape that follows the outer circumferential shape of the eaves gutters 6, 6, and is disposed astride the eaves gutters 6. The connecting member 5 also includes locking portions 5a, 5a for surrounding the upper edges of the ears f3a, 6a of each eaves gutter 6 from the outside and fixing the main body of the connecting member 5 to each eaves gutter 6.
is formed.

In this embodiment, the inner circumferential surface (joint surface) side of the connecting member 5 that is in contact with the outer circumferential surface of each eaves gutter 6 is shown in FIG. 1(a).
As shown in FIG. 2, two strips of water-absorbing resin 7, which expands in volume when it absorbs water, are provided corresponding to the two eaves gutters 6, 6 to be connected. Here, as the water-absorbing resin 7, an acrylic acid polymer such as highly polymerized sodium polyacrylate is used, and when it comes into contact with water, the volume expands rapidly, and once absorbed water is subjected to some pressure. The one that hardly misses is used.

Further, in order to install the water-absorbing resin 7 on the connecting member 5, for example, the following methods (1) to (2) are used.

■ Water-absorbing resin 7 is kneaded into rubber or plastic, and then pasted onto the specified locations of the connecting member 5.

Installed by simultaneous molding etc.

(2) Water-absorbing resin 7 is mixed in a nonwoven fabric or felt, and the nonwoven fabric or felt is installed on the joint surface of the connecting member 5.

(2) Apply the double-sided tape to the joint surface of the connecting member 5 using one suction surface, and then fix the water-absorbing resin 7 in powder form to the other suction surface.

(2) The water-absorbing resin 7 is evenly distributed in a multilayer sheet, and the sheet is attached to the joint surface of the connecting member 5.

■ Apply adhesive liquid containing water-absorbing resin 7 to connecting member 5 using a brush, etc.
Apply to the joint surface.

■ Apply adhesive liquid containing water-absorbing resin 7 to silk screen,
It is provided on the joint surface of the connecting member 5 by offset printing or the like.

■A sticky liquid containing water-absorbing resin 7 is packed in a tube and applied.

When connecting the eaves gutters 6 and 6 to each other using the connecting member 5 configured as described above, the eaves gutters 6 and 6 to be connected to the connecting member 5 are connected to each other as shown by arrows A and A in FIG. 6, and as shown in FIG. 1(b), while the eaves gutters 6, 6 are butted together, the outer circumferential surface of the end of each eaves gutter 6, 6 is located at the position of the two strips of water-absorbing resin 7, 7, respectively. Arrange it so that Through such operations, a connection structure in which the absorbent resin 7 is interposed between the inner circumferential surface of the connecting member 5 and the outer circumferential surface of each eaves 4ii6 is constructed.

The connection of eaves gutters 6 and 6 is completed.

Next, with reference to FIGS. 3(a) to 3(d), the process of water stopping and waterproofing in the connection structure of this embodiment configured as described above will be explained. Here, as shown in FIG. 3(a), it is assumed that a gap 8 is generated near a part of the corner when the connecting member 5 and the eaves gutter 6 are fitted together in a dry sunny weather. In this state, rain begins to fall and the rainwater 9 flowing inside the eaves gutter 6 is shown in Fig. 3 (
As shown in b), it penetrates into the gap 8 and comes into contact with the water absorbent resin 7 between the connecting member 5 and the eaves gutter 6. rainwater 9
When it comes into contact with the water-absorbent resin 7, the water-absorbent resin 7 rapidly expands in volume while absorbing rainwater 9, as shown in FIG. 3(c), and finally, as shown in FIG. 3(d). As shown in the figure, the gap 8 is completely filled with the volume-expanded water-absorbing resin 7. Therefore, even if rainwater 9 penetrates into the gap 8 from within the eaves gutter 6, the rapidly expanded water-absorbing resin 7 prevents the rainwater 9 from leaking out of the eaves gutter 6, and the water is reliably stopped. . Note that the water-absorbing resin 7 that has expanded as shown in FIG. 3(d) will return to the state shown in FIG. 3(a) when the weather becomes clear and dries.
) returns to the state shown in ().

In addition, since the water-absorbing resin 7 has a large volumetric expansion due to water absorption, it can be made into a sheet with a thinner thickness than conventional materials such as rubber. As is clear from the comparison.

There is no difference in level between the connecting parts and the horizontal line of the eaves is not obstructed, making it possible to improve the appearance.

In this way, according to the structure of this embodiment, there is no need to apply adhesive as in the past, and the construction is extremely simple (one-touch construction), while reliably watertight at the connection part. In addition to being able to connect illustrators,
It has the advantage of being able to form a smart and good-looking connection without outward steps or protrusions.

Next, a connection structure for a rain gutter as a second embodiment of the present invention will be explained with reference to FIGS. 4 to 7. FIG. 4 is a perspective view thereof, FIG. 5 is a perspective view showing its connection member, and FIG. The figure is a sectional view showing the shape of the eaves gutter, and FIG. 7 is a perspective view showing a modification of the connecting member.

As shown in FIGS. 4 and 5, the connecting member 10 in the structure of the present embodiment connects the eaves gutter 1 to connect the eaves gutter 11, 11 to each other.
It has an outer circumferential shape that follows the inner circumferential shape of the eaves gutters 1 and 11, and is disposed astride the eaves gutters 11 and 11. In addition, the inner sides of the ears 11a and llb of each eaves gutter 11 are as shown in FIG.

Locking grooves 12 and 13 are formed at both ends of the connecting member 1o, as shown in FIG.
Locking portions 14 and 15 are formed which are fitted into the respective portions 2 and 13 to fix the main body of the connecting member 10 to each eaves gutter 11.

In this embodiment, as shown in FIG. 5, the outer circumferential surface (joint surface) of the connecting member 10 in contact with the inner circumferential surface of each eaves gutter 11 is made of water-absorbing resin that expands in volume when it absorbs water. 1
6 are provided in two rows corresponding to the two eaves gutters 11 and 11 to be connected, respectively. Here, the same water-absorbing resin 16 as in the first embodiment is used, and the means for installing it is also the same as described in sections 0 to 0 above.

The connecting member 1o configured as described above connects the eaves gutter 11,
When connecting the connecting members 11 to each other, the locking portion 1 of the connecting member 10 is
4 and 15 into the respective locking grooves 12 and 13, a connection structure in which the absorbent resin 16 is interposed between the outer peripheral surface of the connecting member 1o and the inner peripheral surface of each eaves gutter 11 is constructed, The connection between the eaves gutters 11 and 11 is completed.

In the connection structure configured in this way, the water-absorbing resin 1
Due to the action of 6, this embodiment can achieve a water stop effect with extremely simple construction in exactly the same way as the first embodiment.
In this embodiment, the connecting member 10 is attached from the inside of the eave gutter 11, and the connecting member 10 is attached from the inside of the eaves gutter 11, and the connecting member 10 is attached to the locking grooves 12, 13 and the locking portion 14.
．． 15, the connecting member 10 is fixed and its locking portion is not exposed to the outside of the eaves gutter 11. Therefore, the connecting member 1o is not exposed to the outside of the eaves gutter 11 at all, and the first embodiment The appearance can be further improved than the example.

In the second embodiment, one strip of water-absorbing resin 16 is provided for each eaves gutter 11, but as shown in FIG.
Two (or more) water-absorbing resin 16 may be provided for each eaves gutter 11 in the connecting member 10A.

In addition, in the first and second embodiments, the water-absorbing resin 7°16 is partially provided on the joint surfaces of the connecting members 5, 10 that contact the eaves gutters 6, 11, but the water-absorbing resin 7°16 is provided on the entire joint surface. Alternatively, a sheet of synthetic resin may be attached or molded at the same time.

Furthermore, in the first and second embodiments, the eaves gutters 6 and 1
1 to each other using the connecting members 5 and 10, the structure of the present invention is also applicable to the connection between vertical gutters or the connection between one eaves gutter and one vertical gutter. The same effects as those of the above embodiment can be obtained.

By the way, water absorbent resin 7,1 used in the present invention
When No. 6 is exposed to light, it may deteriorate due to radical reactions, etc., and its water absorption performance may decrease. As mentioned above, the water-absorbing resins 7, 16 provided on the connecting members 5, 1o will be used to connect the connecting members 5, 10 and the eaves gutters 6, 1 once they are actually installed.
Since it is not sandwiched between the connecting member 5.1 and exposed to light at all, the water absorbing performance does not deteriorate. It is desirable to protect the water absorbent resins 7 and 16 from light. Therefore, after providing the water-absorbing resins 7 and 16 on the connecting members 5 and 1o, a shielding member such as a light-shielding film, tape, or sheet is placed on the water-absorbing resins 7 and 16 using a weak adhesive. The connecting members 5 and 1o are pasted and used by peeling off the shielding member when connecting the eaves gutters 6 and 11 to each other. This makes it possible to connect the eaves gutters 6 and 11 without impairing the water absorption performance of the water absorbent resin 7.16.

[Effects of the Invention] As detailed above, according to the rain gutter connection structure of the present invention, the gutter parts can be connected to each other with simple construction due to the extremely simple structure of interposing the water-absorbing resin in the connection part. In addition to being able to reliably shut off water at the connection part, it also has the effect of forming a good-looking connection part with no outward protrusion.

[Brief explanation of the drawing]

1 to 3 show a connection structure for a rain gutter according to a first embodiment of the present invention, and FIGS. 1(a) and 1(b) are perspective views for explaining the connection member and connection procedure; FIG. 2 is a sectional view of the main part of the above-mentioned connecting member, FIGS. 3(a) to 3(d) are sectional views of the main part for explaining the operation of this embodiment,
The figures show a connection structure of a rain gutter as a second embodiment of the present invention, Fig. 4 is a perspective view thereof, Fig. 5 is a perspective view showing its connection member, and Fig. 6 is a shape of the eaves gutter. FIG. 7 is a sectional view showing a modification of the connecting member. 8(a) and 8(b) show a conventional gutter connection structure, FIG. 8(,) is a perspective view showing the connecting member, and FIG.
b) is a sectional view of the main part of the connection member, and FIG. 9(a),
(b) shows another conventional gutter connection structure, which is shown in Fig. 9 (
FIG. 9(a) is a perspective view showing the connecting member, and FIG. 9(b) is a sectional view of a main part of the connecting member. In the figure, 5 - connection member, 5a - locking part, 6 - eaves gutter,
6a-ear portion, 7-water absorbent resin, 8-gap. 9-Rainwater, 10. 10A-Connection member, 11-Eave gutter, 11
a, 1lb-m-ear, 12.13-locking groove. 14.15--One locking portion, 16-Water absorbent resin.

Claims (1)

[Claims] A rain gutter connection structure characterized in that a water-absorbing resin is interposed between the connection parts between the rain gutters or the connection parts between the rain gutters and the connection member.