JPH0562620U - Rain gutter fittings - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a rain gutter joint that sufficiently exhibits a waterproof function and absorbs expansion and contraction deformation of the rain gutter. [Structure] A rain gutter joint body 1 is formed with a connecting portion 2 into which a rain gutter is slidably fitted and connected, and a water swelling material layer 3 and a soft elastic material layer 4 are laminated on the connecting portion 2 for waterproofing. A seal material 5 is additionally provided, and at the time of rainfall, the water swelling material layer 3 of the waterproof seal material 5 absorbs rainwater and swells, and the waterproof seal material 5
In addition to the elastic force of the soft elastic material layer 4, the waterproof seal material 5 firmly adheres to the rain gutter, and in fine weather, the water swelling material layer 3 of the waterproof seal material 5 dries and shrinks. In this state, the adhesion between the waterproof seal material 5 and the gutter is reduced, and the gutter and the gutter joint main body 1 are easily slid on each other.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rain gutter joint for slidably fitting and connecting the ends of a rain gutter.

[0002]

[Prior Art]

 Conventionally, as shown in FIG. 7, it has been common practice to fit both eaves gutters (a) by fitting eaves gutter joints (b) on the outside between the ends of the eaves gutters (a). In this case, the soft waterproof seal material (c) is provided on the inner surface of the eaves trough joint (b), and the soft waterproof seal material (c) is adhered to the outer surface of the eaves trough (a). This prevents rainwater from leaking from the connection part. Also, in this case, the adhesive is not used and is connected, and the eaves gutter (a) and eaves gutter joint (b) can slide on each other via the soft waterproof seal material (c). This absorbs the expansion and contraction deformation of the eaves gutter (a) made of synthetic resin due to heat. When the eaves trough joint (b) is fitted on the outer side of the eaves trough (a), the eaves trough joint (roth) is attached to the ears (d) formed on both upper edge portions of the eaves trough (a). ) The ear holding portions (e) formed on both upper edge portions are engaged with each other.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional technique, the soft waterproof seal material (c) is attached to the outer surface of the eaves gutter (a) so that the eaves gutter (a) and the eaves gutter joint (b) can easily slide on each other. If the adhesion strength of the eaves is weakened, the elongate deformation of the eaves gutter (a) will be absorbed easily, but the waterproof function will decrease, and conversely, the eaves gutter of the soft waterproof seal material (c) will be absorbed. (B) When the adhesion to the outer surface is strengthened, the waterproof function is secured, but the eaves gutter (a) and the eaves gutter joint (b) do not easily slide on each other, and the eaves gutter (a) However, there is a problem that it is difficult to absorb the expansion and contraction deformation due to heat.

The present invention has been devised to solve the above-mentioned problems in the prior art. That is, the problem is that the waterproof function is sufficiently exerted during rainfall, and the rain gutter expands and contracts during fine weather. It is an object of the present invention to provide a gutter joint in which deformation is easily absorbed.

[0005]

[Means for Solving the Problems]

 The rain gutter joint of the present invention comprises a waterproof girder joint body in which a connection part for slidably fitting and connecting a rain gutter is formed, and a water swelling material layer and a soft elastic material layer are laminated on the connection part. -The above-mentioned problems are solved by adding a ruling material.

[0006]

[Action]

 In the rain gutter joint of the present invention, the rain gutter joint main body is formed with a connection part to which the rain gutter is slidably fitted and connected, and the water swelling material layer and the soft elastic material layer are laminated on the connection part. Since the waterproof seal material is attached, the water swelling material layer of the waterproof seal material absorbs rainwater and expands when it rains, and the elastic force of the soft elastic material layer of the waterproof seal material is also added. The waterproof sealing material firmly adheres to the connection surface of the gutter, and the gap between the gutter and the gutter joint body is sealed tightly, so that the waterproof function is fully exerted. Also, in fine weather, the water swelling material layer of the waterproof seal material is in a dry and contracted state, and the adhesion between the waterproof seal material and the connection surface of the rain gutter is reduced, so The gutter and the rain gutter joint are easily slidable with each other, and the expansion and contraction deformation due to the heat of the rain gutter is well absorbed.

[0007]

【Example】

 The rain gutter joint shown in FIG. 1, FIG. 2 and FIG. 3 is one embodiment of the present invention, in which a rain gutter 6 is slidably fitted and connected to a rain gutter joint body 1 to form a connecting portion 2. 2, a water-swelling material layer 3 and a soft elastic material layer 4 are laminated together to provide a waterproof seal material 5.

The rain gutter 6 is a square gutter-shaped eaves gutter integrally molded with a synthetic resin, and hollow ears 7 are formed on both upper edge portions of the rain gutter 6. .

Further, the rain gutter joint is an eaves gutter joint, and the rain gutter joint body 1 is integrally injection-molded with a synthetic resin, and the rain gutter joint body 1 has both upper edge portions. An ear holding portion 8 is formed to be engaged with each of the ear portions 7 of the rain gutter 6. Further, on both sides of the rain gutter joint body 1, there are provided connecting portions 2 which are fitted to the outside of the end portions of the rain gutter 6, respectively, and two waterproof lines are provided on the inner surfaces of the connecting portions 2 on both sides. A seal material 5 is attached. The waterproof seal material 5 has a water-swellable material layer 3 laminated on the lower side and a soft elastic material layer 4 on the upper side, that is, a solid band-shaped water-swellable seal material on the inner surface of the connecting portion 2. (Trade name "Aquaprene DX": manufactured by Sanyo Kasei Co., Ltd.) is adhered to form a water swelling material layer 3, and a band-shaped material made of a soft vinyl chloride resin is adhered onto the water swelling material layer 3. The soft elastic material layer 4 is formed.

Therefore, in the rain gutter joint of the embodiment, at the time of rain, the water swelling material layer 3 of the waterproof seal material 5 absorbs rainwater and swells, and the soft elastic material layer of the waterproof seal material 5 expands. Since the soft elastic material layer 4 of the waterproof seal material 5 is firmly adhered to the outer connecting surface of the end portion of the rain gutter 6 by adding the elastic force of 4, the gap between the rain gutter 6 and the rain gutter joint body 1 is increased. It is a tightly sealed and fully water-proof function. Also, in fine weather, the water swelling material layer 3 of the waterproof seal material 5 is in a dry and contracted state, and the soft elastic material layer 4 of the waterproof seal material 5 is connected to the outside of the end of the rain gutter 6. Since the adhesive strength with the surface is reduced, the rain gutter 6 and the connecting portion 2 of the gutter joint body 1 are easily slidable with each other without causing the waterproof seal material 5 to interfere with the rain. The expansion and contraction deformation of the gutter 6 due to heat is favorably absorbed.

In addition, the rain gutter joint of the present invention may be as in the embodiment shown in FIG. That is, the rain gutter joint of the embodiment is an eaves gutter joint. In the rain gutter joint, the rain gutter joint body 1 integrally extruded with synthetic resin is cut into short lengths. The connection part 2 is formed on both sides of the rain gutter joint main body 1, and the connection part 2 is fitted and connected with the rain gutter 6 which is a half-circle gutter-shaped eaves gutter. A waterproof seal material 5 is provided on each of the inner peripheral surfaces of the connecting portions 2 on both sides of the rain gutter joint body 1, and the water-swellable material layer of the waterproof seal material 5 is provided. 3 is formed by coating a water-swellable seal material on the inner surface of the connecting portion 2. Therefore, as the water-swellable seal material, a water-swellable seal material that is applied in a liquid state and solidified (trade name "Chemguard U": manufactured by Sanyo Kasei Co., Ltd.) is adopted. There is. On the water-swellable material layer 3, a soft elastic material layer 4 is formed by adhering a band-shaped material made of soft rubber and having an arc surface.

Further, the rain gutter joint of the present invention may be the one as shown in FIGS. 5 and 6. That is, the gutter joint of the embodiment is a gutter joint, and in the gutter joint, a gutter 9 having a circular cross section integrally extruded with synthetic resin is connected. The joint body 1 has a cylindrical shape to which the vertical gutter 9 can be connected and is integrally molded by injection molding with synthetic resin. Further, an upper vertical gutter 9 is inserted and fitted into a water side connecting portion 2a of the rain gutter joint body 1, and an underwater connecting portion 2b thereof is inserted and fitted into an upper end portion of a lower water gutter 9. The upper and lower vertical gutters 9 are slidably fitted and connected together. In the rain gutter joint, two recessed grooves 10 are formed in parallel on the inner surfaces of the upper and lower connecting portions 2a and 2b, and the waterproof seal material 5 is housed in each of the recessed grooves 10. Is provided. The waterproof seal material 5 is formed by laminating a water swelling material layer 3 on the upper side and a soft elastic material layer 4 on the lower side, and the water swelling material layer 3 of the waterproof sealing material 5 absorbs rainwater during rainfall. Then, the water swelling material layer 3 protrudes from the groove 10 and firmly adheres to the outer surface of the end of the downpipe 9.

[0013]

[Effect of the device]

 As described above, in the rain gutter joint of the present invention, the water swelling material layer of the waterproof seal material absorbs rainwater and swells during rain, and the elastic force of the soft elastic material layer of the waterproof seal material is also added. Since the waterproof seal material firmly adheres to the connection surface of the rain gutter, the gap between the rain gutter and the rain gutter joint body is securely sealed, and the waterproof function is sufficiently exerted. In addition, when the weather is fine, the water swelling material layer of the waterproof seal material is in a dry state and in a contracted state, and the adhesion between the waterproof seal material and the connection surface of the rain gutter is reduced. The gutter joint and the gutter joint are able to easily slide against each other, and the expansion and contraction deformation due to the heat of the gutter is absorbed well.

[Brief description of drawings]

FIG. 1 is a perspective view showing a rain gutter joint which is an embodiment of the present invention.

FIG. 2 is a perspective view showing a usage state of the embodiment.

FIG. 3 is a sectional view of the same embodiment in a use state.

FIG. 4 is a perspective view showing a rain gutter joint which is another embodiment.

FIG. 5 is a perspective view showing a rain gutter joint which is still another embodiment.

FIG. 6 is a cross-sectional view showing a usage state of the embodiment.

FIG. 7 is a perspective view showing a conventional example of the present invention.

[Explanation of symbols]

 1 Rain gutter joint body 2 Connection part 3 Water swelling material layer 4 Soft elastic material layer 5 Waterproof seal material

Claims (1)

[Scope of utility model registration request] 1. A waterproof seal material comprising a rain gutter joint main body provided with a connecting portion for slidably fittingly connecting the rain gutter, and a water swelling material layer and a soft elastic material layer being laminated on the connecting portion. Rain gutter joint that is attached.