JPH05287863A - Expansion joint for trough - Google Patents

Abstract

PURPOSE:To provide an expansion joint which can prevent the occurrence of water leakage even if the environment of place for installation is changed. CONSTITUTION:An expansion joint for a trough comprises a first joint part 10 to which one trough is fixed and a second joint part 20 to which the other tough is fixed, and which is inserted inside the first joint part 10 and connects one trough to the other trough in such a manner as to be expansible to allow water to flow therebetween, wherein the second joint part 20 has a U-shaped section. A reinforcement member 12 where the outer wall of the second joint part 20 slides is provided in such a manner as to stride over the insides of both side walls 13, 13 of the first joint part 10 and the inside of the bottom wall 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an expansion joint for a gutter for connecting a gutter attached to an eave of a building and the like in a stretchable manner.

[0002]

2. Description of the Related Art FIG. 6 shows an example of an expansion joint for a gutter which connects a gutter attached to an eave of a building so that water can flow. This conventional expansion joint for gutters includes a first joint portion 70 into which a gutter is inserted and fixed from the direction of an arrow 601 and an arrow 60.
The second joint portion 80 in which the gutter is inserted and fixed from the direction 2
It has and. Then, the second joint portion 80 has an arrow 60.
It is inserted into the inside of the first joint portion 70 from the direction of 3.

Thus, as shown in FIG. 7, for example, the gutter 1 and the gutter 2 are connected by the first joint portion 70 and the second joint portion 80. In this case, the gutter 1 and the gutter 2 are separated by a distance c. Expansion joints for gutters can be installed in gutters due to changes in the environment in which they are installed, such as changes in the outside temperature due to seasonal differences.
Even if the gutter 2 expands and contracts in the longitudinal direction and the distance c changes, the expansion joint for the gutter can expand and contract, so that the change in expansion and contraction is absorbed.

[0004]

By the way, in the conventional expansion joint for gutters as shown in FIG. 6, the first joint portion 70, due to a change in the environment in which it is installed, for example, a change in the outside air temperature due to a difference in season. The bottom walls 71 and 81 of the second joint portion 80 are curved. In this state, if water is poured into the gutter, water leakage will occur at the curved part of the gutter expansion joint.

An object of the present invention is to provide an expansion joint for a gutter, which eliminates such drawbacks and can prevent leakage of water even if the environment in which it is installed changes.

[0006]

In order to achieve the object of the present invention, a first joint portion to which one trough is fixed and another trough is fixed and inserted into the inside of the first joint portion. At the same time, an expansion joint for a gutter comprising: a second joint part that connects the one gutter and the other gutter so that the water can extend and contract.
The cross section of the second joint portion is U-shaped, and the reinforcing portion on which the outer wall of the second joint portion slides is provided over the inside of both side walls of the first joint portion and the inside of the bottom wall.

[0007]

With this structure, the outer wall of the second joint portion slides on the reinforcing portion provided on the first joint portion, so that the outer wall of the second joint portion is in contact with the first joint portion. .. In addition, since the reinforcement portion provided in the first joint portion is fixed to both side walls of the first joint portion and the bottom wall between these side walls, the environment where the expansion joint for gutter is installed is provided. Even if the value changes, the deformation of the bottom wall of the first joint portion is prevented. Further, since the second joint portion has a U-shaped cross section, the second joint portion is prevented from being deformed even if the environment in which the gutter expansion joint is installed changes.

As a result, even if the installed environment changes, the outer wall of the second joint portion is always in contact with the reinforcing portion provided in the first joint portion, and water leakage due to the change in environment can be prevented.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

[First Embodiment] FIG. 1 shows a first embodiment of the present invention.
It is a perspective view showing. This expansion joint for gutters includes a first joint portion 10 and a second joint portion 20.

The first joint portion 10 has a U-shaped cross section,
A partition portion 11 is provided inside. A gutter can be inserted into the first joint portion 10 from the direction of the arrow 101 to the partition portion 11.

Inside the first joint portion 10, a reinforcing member 12 which is curved and has a U-shaped cross section is fixed. At this time, both ends of the reinforcing member 12 have the first joint portion 1
0 to the side walls 13, 13 of the reinforcing member 12
Is fixed to the bottom wall 14. A water blocking material (not shown) for preventing water leakage is embedded in the groove 12A of the reinforcing member 12. In addition, the reinforcing member 12 and the water stop material (not shown)
And constitute a reinforcing portion.

Guide portions 15, 15 having a U-shaped cross section are provided on the upper sides of the side walls 13, 13.

The second joint portion 20 has a trough mounting portion 21 having a U-shaped cross section, and a sliding portion 22 having a U-shaped curvature as a whole.
It has and.

A gutter can be inserted into the gutter mounting portion 21 in the direction of the arrow 102.

The outer wall of the sliding portion 22 is shaped so as to slide with a water blocking material (not shown) embedded in the reinforcing member 15 of the first joint portion 10. On both sides of the sliding portion 22, guide portions 23, 23 having a U-shaped cross section, which are fitted with the guide portions 15, 15 of the first joint portion 10, are provided.

In such a gutter expansion joint, the gutters are connected as follows.

One of the connected gutters is inserted from the direction of the arrow 101 to the partition 11 of the first joint portion 10 and fixed. The other gutter is inserted into the gutter mounting portion 21 of the second joint portion 20 from the direction of the arrow 102 and fixed.

After this, the second joint portion 20 is inserted into the first joint portion 10 from the direction of the arrow 103, and the gutters are connected.
At this time, the guide portions 23, 23 of the second joint portion 20 have the first
While moving inside the guide portions 15 and 15 of the joint portion 10, the outer wall of the sliding portion 22 of the second joint portion 20 is moved to the reinforcing member 12.
It slides with the water blocking material (not shown) embedded in. Thereby, the gutter is connected in a state where the outer wall of the sliding portion 22 of the second joint portion 20 is in contact with the water blocking material (not shown) of the reinforcing member 12.

Thus, the guide members 15, 15 of the first joint portion 10 and the guide members 23, 23 of the second joint portion 20.
As a result, the upward movement of the second joint portion 20 is prevented, so that the outer wall of the second joint portion 20 and the water blocking material (not shown) embedded in the reinforcing member 15 are kept in contact with each other, and Water leakage is prevented when the water flows into the gutter.

As described above, according to the first embodiment, even if the environment in which the expansion joint for the gutter is installed changes, the sliding portion 22 is curved in a U shape, so that the deformation of the sliding portion 22 is prevented. In addition, since the side walls 13 and 13 and the bottom wall 14 are fixed to each other by the reinforcing member 12, the bottom wall 14 is not curved and water leakage is prevented.

In the first embodiment, the reinforcing member 12 is formed by bending a rod-shaped member having a U-shaped cross section, but the shape of the reinforcing member 12 is not limited to this. It may be shaped so as to fill the gaps between the member 12, the side walls 13 and 13, and the bottom wall 14.

[Second Embodiment] FIG. 2 shows a second embodiment of the present invention.
It is a perspective view showing. In the second embodiment, the convex sliders 15A and 15A having the length a are provided inside the guide portions 15 and 15 of the first joint portion 10 of the first embodiment. The convex sliders 15A and 15A have a quadrilateral rod-shaped cross section, and are provided in the guide portions 15 and 15 in parallel with the insertion direction 201, respectively.

On the other hand, the guide portions 23, 2 of the second joint portion 20
On the outer side of 3, the convex slider 15 of the first joint portion 10 is provided.
A concave slider 23 having a length of b to which A and 15A are fitted
A and 23A are inserted in the insertion direction 201 from the end of the guide member 23.
It is installed in parallel with. This concave slider 23A,
The length b of 23A is the convex slider 1 of the first joint portion 10.
It is longer than the length a of 5A and 15A.

When the second joint portion 20 of the second embodiment is inserted into the first joint portion 10 in the inserting direction 201, the second joint portion 20 is attached to the first joint portion 10 so as to be expandable and contractible, and Since the concave sliders 23A, 23A of the joint portion 20 are fitted with the convex sliders 15A, 15A of the first joint portion 10, the state shown in FIG. 4 is achieved, and the blurring of the second joint portion 20 in the vertical direction 401 can be prevented. ..

As described above, according to the second embodiment, the convex sliders 15A, 15A and the concave sliders 23A, 23A form the outer wall of the second joint portion 20 and the waterproof material embedded in the reinforcing member 15 (not shown). ) Will be sure contact with, and will prevent water leakage when connecting the gutter.

Further, since the second joint portion 20 moves the first joint portion 10 in the inserting direction 201 while the convex sliders 15A, 15A and the concave sliders 23A, 23A slide, the second joint portion 20 is Movement is smooth.

Further, the reinforcing members 15 are formed by the convex sliders 15A, 15A and the concave sliders 23A, 23A.
Since the gap between the second joint portion 20 and the second joint portion 20 can be made constant, the occurrence of water leakage can be prevented even if the water stop material (not shown) of the reinforcing member 15 has uneven thickness.

In the second embodiment, the concave slider 23
A and 23A are provided from the ends of the guide portions 23 and 23, but the positions where the concave sliders 23A and 23A are provided are
For example, the guide portions 23, 23 are not limited to this.
It may be provided at a predetermined distance from the end of. This allows
It is possible to prevent the second joint portion 20 from coming out of the first joint portion 10.

[Third Embodiment] FIG. 3 shows a third embodiment of the present invention.
It is a perspective view showing. In the third embodiment, concave sliders 15B and 15B are provided inside the guide portions 15 and 15 of the first joint portion 10 of the first embodiment, and convex sliders are provided outside the guide members 23 and 23 of the second joint portion 20. 23B, 23B
Is provided. This is the second embodiment, and the convex slider 1
5A, 15A and the concave sliders 23A, 23 are provided in opposite positions.

When the second joint portion 20 of the third embodiment is inserted into the first joint portion 10 from the inserting direction 301, the convex sliders 23B and 23B are fitted with the concave sliders 15B and 15B. The state shown in FIG.
It is possible to prevent blurring in the vertical direction 501.

As described above, according to the third embodiment, the concave sliders 15B and 15B and the convex sliders 23B and 23B form the outer wall of the second joint portion 20 and the waterproof material embedded in the reinforcing member 15 (not shown). ) Will be sure contact with, and will prevent water leakage when connecting the gutter.

[0033]

As described above, according to the present invention,
Since the outer wall of the second joint portion slides on the reinforcing portion provided on the first joint portion, and the reinforcing portion is fixed to both side walls of the first joint portion and the bottom wall between these side walls. Even if the environment in which the expansion joint for gutter is attached changes, the deformation of the bottom wall of the first joint portion is prevented. Thereby, the outer wall of the second joint portion is always in contact with the reinforcing portion provided in the first joint portion, so that water leakage due to a change in environment can be prevented.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a second embodiment of the present invention.

FIG. 3 is a perspective view showing a third embodiment of the present invention.

FIG. 4 is a cross-sectional view showing a fitting state of a joint portion according to a second embodiment.

FIG. 5 is a cross-sectional view showing a fitting state of a joint portion according to a third embodiment.

FIG. 6 is a perspective view showing an example of a conventional expansion joint for gutters.

FIG. 7 is a side view showing an example of connection of gutters by a conventional expansion joint for gutters.

[Explanation of symbols]

 10 1st joint part 12 Reinforcement member 13 Side wall 14 Bottom wall 20 2nd joint part

Claims (1)

[Claims] 1. A first joint part to which one gutter is fixed, and another gutter is fixed to be inserted into the inside of the first joint part, and between the one gutter and the other gutter. An expansion joint for gutters, comprising: a second joint portion that expands and contracts so as to allow flowing water. The second joint portion has a U-shaped cross section, and the second joint
An expansion joint for gutters, characterized in that a reinforcing portion on which an outer wall of the joint portion slides is provided so as to extend over the inside of both side walls and the inside of the bottom wall of the first joint portion.