JPH04347247A - Connecting method of eave gutter made of synthetic resin - Google Patents

Abstract

PURPOSE:To prevent the meandering of an eave gutter and the damage of the eave gutter from occurring, to obviate the direct striking of solar rays against a soft board body by mounting an adhesive type on the outer circumferential surface of the soft board body, to delaying deterioration and to prevent the deterioration of the eave gutter made of a synthetic resin without using the solvent of the eave gutter made of the synthetic resin. CONSTITUTION:The end face of one eave gutter 1 made of a synthetic resin and the end face of the other eave gutter 2 made of the synthetic resin are joined, and a cushioning material, in which an adhesive tape is set up on the outer circumferential surface of a soft board body while an adhesive layer is directed outward, is stuck on a joint surface with the eave gutter of an eave gutter joint 3. The eave gutter joint 3 is stuck on a surface near the joint surfaces of the eave gutters 1 and 2 while crossing one eave gutter 1 and the other eave gutter 2. Since the eave gutters 1, 2 and the eave gutter joint 3 are connected while holding the cushioning material composed of the soft board body and the adhesive tape, expansion and contraction due to temperature difference in the summer and the winter are absorbed by the cushioning material.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for connecting synthetic resin eaves gutters.

0002

[Prior Art] Conventionally, there are various methods of connecting eaves gutters made of synthetic resin, but the most common method is as described in Japanese Patent Publication No. 49-3083. An adhesive made by dissolving the same type of synthetic resin as the raw material in a solvent was applied, and the ends of the synthetic resin eaves gutters were bonded and connected to this bonded surface.

[0003] When the eaves gutter joint and the synthetic resin eaves gutter are connected by this method, the eaves gutter joint and the synthetic resin eaves gutter are firmly fixed. However, since synthetic resin has a large coefficient of thermal expansion,
If synthetic resin eaves gutters are firmly fixed and connected using the above method, the expansion of the eaves gutters under the blazing sun in the summer can cause meandering of the eaves gutters and damage to the joints, and in the winter, the contraction of the eaves gutters can cause the eaves gutters to become damaged. There are problems such as cracking and separation of the joint between the eaves gutter and the joint.

[0004] In order to solve this problem, various methods have been used in the past. For example, as described in Japanese Utility Model Publication No. 58-6984 and Japanese Utility Model Publication No. 58-45386, a bellows is provided in the center of the eaves gutter joint or between the eave gutter joints, and synthetic resin eaves gutter is installed. A method is known in which the expansion and contraction of the bellows is absorbed by the bellows.

[0005] Also, as another method, Utility Model Application No. 55-427
As described in Japanese Patent No. 87, it is known to provide a cushioning material made of a soft foam material layer between the joint surface of a synthetic resin eaves gutter and an eaves gutter joint.

[0006]

[Problems to be Solved by the Invention] However, the method of providing a bellows part in the center of the eaves gutter joint or between the eaves gutter joints works well for a while, but after long-term use, synthetic resin As eaves gutters expand and contract frequently, cracks gradually form in the bellows, which causes rainwater to leak.

Furthermore, the method of providing a soft foam layer has the problem that the cushioning material made of the soft foam layer deteriorates during long-term use, and rainwater leaks from the soft foam layer. Furthermore, when a synthetic resin eaves gutter and an eave gutter joint are bonded together using an adhesive in which a synthetic resin is dissolved in a solvent, the solvent in the adhesive penetrates into the synthetic resin eave gutter and the synthetic resin eaves gutter is bonded. This had the disadvantage of deteriorating the gutters and causing cracks to form at places where there was internal distortion during the manufacture of synthetic resin eaves gutters, allowing rainwater to leak.

Therefore, an object of the present invention is to prevent meandering of synthetic resin eaves gutters and damage to eave gutter joints due to expansion and contraction due to temperature differences between summer and winter, and to prevent cracking of synthetic resin eaves gutters and damage to eaves gutters. To provide a method for connecting eaves gutters made of a synthetic resin with good durability, without separating the joint between the eaves gutter joint and the eaves gutter joint, and without using a solvent that dissolves the synthetic resin.

[0009]

[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems and achieve the above-mentioned objects. In the synthetic resin eaves gutter connection method, in which the surfaces near the abutting part and the joint surfaces provided at both ends of the eaves gutter joint are connected with a cushioning material in between, the cushioning material is soft. Adhesive tape is attached to the outer circumferential surface of the plate with the adhesive layer on the outside, and a cushioning material is attached to the joint surface of the eaves gutter joint, and the end face of one eave gutter and the end face of the other eave gutter are connected. , and place the side of the eaves gutter joint on which the cushioning material is attached to the surface near this contact area, straddling it from one eaves gutter to the other eaves gutter, and press it to attach the eaves gutter joint. This connects the eaves gutter to the eaves gutter.

The adhesive tape used in the present invention is a tape-like film with an adhesive layer provided on one or both sides. The adhesive used here is always sticky, and includes a mixture of rubber such as natural rubber or synthetic rubber and a tackifier such as rosin, and a compound having stickiness such as acrylic resin.

The cushioning material used in the present invention is one in which an adhesive tape is provided on the outer peripheral surface of a soft plate with the adhesive layer facing outside. In this way, when attaching an adhesive tape with the adhesive layer on the outside, when using an adhesive tape with an adhesive layer on one side, the non-adhesive side of the adhesive tape should be facing the surface of the soft plate and attached to the outer peripheral surface. Wrap it around. Then, the adhesive layer is placed on the outside and attached to the soft plate. In the case of a double-sided adhesive tape that has adhesive surfaces on both sides, when one of the adhesive surfaces is wrapped around the outer peripheral surface of a plate and adhered, the adhesive layer is placed on the outside and the adhesive tape is attached. It is preferable to use this double-sided adhesive tape because it can be easily wrapped around the surface of a soft plate.

[0012] Here, the soft plate includes a soft synthetic resin sheet such as an ethylene resin sheet or a soft vinyl chloride resin sheet, a soft foam sheet such as an ethylene resin foam sheet,
There are rubber sheets such as natural rubber sheets and synthetic rubber sheets.

The synthetic resin eaves gutters used in the present invention are made by molding various synthetic resins such as vinyl chloride resin and ethylene resin into a groove shape. It is the most suitable because it is large.

[0014] As the material for the eaves gutter joint used in the present invention, synthetic resins, metals, etc. are used, and the same material as the eaves gutter is preferred for construction and use. For example, if the eaves gutter is made of vinyl chloride resin, the eave gutter joint is also preferably made of vinyl chloride resin. In terms of shape, it is a plate-shaped body formed into a shape that overlaps the inner or outer surface of the eaves gutter. Then, this is used by being joined to the inner or outer surface of the eaves gutter, or by being sandwiched and joined from both sides of the eaves gutter joint or the inner and outer surfaces.

[0015]

[Function] In the present invention, the eave gutter joint and the eaves gutter are joined by sandwiching a cushioning material with adhesive tape attached to the outer peripheral surface of the soft plate between the eave gutter joint and the eaves gutter. Both the adhesive and the adhesive of the adhesive tape are flexible substances, and are not fixed like conventional adhesives, but are connected with some movement.

[0016] Therefore, this cushioning material absorbs expansion and contraction due to temperature differences between summer and winter. Since the cushioning material used in the present invention is a soft plate with adhesive tape attached to the outer peripheral surface, the soft plate is not exposed to direct sunlight, so deterioration is slowed down and it can be used for a long period of time.

[0017] Furthermore, in the present invention, since the adhesive strength of the adhesive tape is used to bond the parts and no solvent is used for the synthetic resin eaves gutter, the synthetic resin eave gutter will not deteriorate.

[0018]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings. Figures 1 to 3 show an example of the method for connecting synthetic resin eaves gutters of the present invention. Figure 1 is a perspective view showing a state in which they are connected by the method of the present invention, and Figure 2 is a diagram showing the connection method used in the connection method shown in Figure 1. FIG. 3 is a perspective view showing a state in which a cushioning material is attached to the outer peripheral surface of an eaves/gutter joint, and FIG. 3 is a sectional view of the cushioning material used in the connection method shown in FIG.

FIG. 4 is a sectional view of a cushioning material used in another embodiment of the present invention. In FIGS. 1 to 3, 1 is one synthetic resin eaves gutter to be connected, and 2 is the other synthetic resin eaves gutter to be connected. Both eaves gutters 1 and 2 are made of vinyl chloride resin.

Reference numeral 3 denotes an eave gutter joint made of vinyl chloride resin, and this eave gutter joint 3 has a shape that follows the inner surfaces of the eaves gutter 1 and 2. 4 is a cushioning material, and this cushioning material 4 has an adhesive tape 42 provided with an adhesive layer 43 on one side on the outer peripheral surface of a soft plate 41 made of an ethylene resin foam sheet, with the adhesive layer 43 on the outside. , wrapped and attached.

The adhesive used in this adhesive tape 42 is a mixture of 50 parts of natural rubber and 50 parts of rosin. Next, a method for connecting synthetic resin eaves gutters will be explained.

Adhesive tape 42 is placed on the surface of the soft plate 41.
The cushioning material 4 is manufactured by wrapping and attaching the adhesive layer 43 on the outside. Next, when the cushioning material 4 is pressed against the outer peripheral surface of the eaves gutter joint 3, the adhesive layer 43 attached to the outer peripheral surface of the cushioning material 4 is adhered to the outer peripheral surface of the eaves gutter joint 3.

Next, the end face of the eaves gutter 1 and the end face of the eaves gutter 2 are brought into contact with each other, and the outer circumferential surface of the eaves gutter joint 3 is placed on the inner circumferential surface of the vicinity of this abutting part while straddling the eaves gutter 1 and 2. Push, press, eave gutter joint 3
Attach.

Then, the adhesive tape 42 of the cushioning material 4 attached to the outer peripheral surface of the eaves gutter joint 3 adheres to the ends of the eaves gutter 1 and 2, and the eaves gutter 1 and the eaves gutter 2 are connected. . When the eaves gutter 1 and the eaves gutter 2 are connected in this way, the ends of the eaves gutter 1 and 2 and the eaves gutter joint 3 are joined with the cushioning material 4 in between, so that the eaves gutter 1
Even if the eaves gutter 2 expands and contracts due to the temperature difference between summer and winter, this expansion and contraction is absorbed by the cushioning material 4 and the adhesive tape 42, preventing the eaves gutter from meandering or damaging the eaves gutter joint.

Next, another embodiment of the present invention shown in FIG. 4 will be described. The cushioning material 4a used in FIG. 4 is a synthetic rubber sheet 41a with double-sided adhesive tape 42a provided on the outer peripheral surface.

This double-sided adhesive tape 42a has adhesive layers 43a provided on both sides. The embodiment shown in FIG. 4 differs from the embodiment shown in FIGS. 1 to 3 only in the cushioning material 4a, and the rest is the same as the embodiment shown in FIGS. 1 to 3.

[0027]

[Effects of the Invention] In the present invention, since a cushioning material made of a soft board with adhesive tape attached is used to connect the eaves gutter and the eave gutter joint, the expansion and contraction of the synthetic resin eaves gutter due to temperature differences between summer and winter is prevented. The soft board material and the adhesive tape absorb it, so there is no meandering of the eaves gutter or damage to the eave gutter joint, and there is no possibility that the synthetic resin eaves gutter will crack or the joint between the eave gutter and the eave gutter joint will come apart.

[0028] Furthermore, since the cushioning material is made by attaching adhesive tape to the outer peripheral surface of a soft plate material, the soft plate material is not exposed to sunlight directly and has good weather resistance. Furthermore, since no solvent is used in the present invention, there is no need to worry about cracks in the synthetic resin eaves gutters.

[Brief explanation of the drawing]

FIG. 1 shows an embodiment of the method of connecting synthetic resin eaves gutters according to the present invention, and is a perspective view showing a state where the eaves gutters are connected by the method of the present invention.

FIG. 2 is a perspective view showing a state in which a cushioning material is attached to the outer surface of the eaves/gutter joint used in the connection method shown in FIG. 1;

FIG. 3 is a sectional view of a cushioning material used in the connection method shown in FIG. 1.

FIG. 4 is a sectional view of a cushioning material used in another embodiment of the present invention.

[Explanation of symbols]

1 One synthetic resin eaves gutter to be connected 2 The other synthetic resin eave gutter to be connected 3 Eaves gutter joints 4, 4a Cushioning materials 41, 41a Soft plates 42, 42a Adhesive tapes 43, 43a Adhesive layer

Claims (3)

[Claims] Claim 1: The end face of one synthetic resin eaves gutter is brought into contact with the end face of the other synthetic resin eaves gutter, and the surface near this abutting part and the joint surfaces provided at both ends of the eaves gutter joint In this method of connecting synthetic resin eaves gutters, the cushioning material is attached to the outer circumferential surface of a soft plate with adhesive tape, with the adhesive layer on the outside. Attach a cushioning material to the joint surface, bring the end face of one eave gutter into contact with the end face of the other eave gutter, and place the side of the eave gutter joint to which the cushioning material is pasted on the surface near this abutting part on one side. A method for connecting synthetic resin eaves gutters, characterized by connecting one eave gutter to another by straddling one eave gutter to another, pressing it together, and pasting an eaves gutter joint. 2. The synthetic resin eaves gutter according to claim 1, wherein the eave gutter joint and the eaves gutter are joined by sandwiching a cushioning material made of double-sided adhesive tape adhered to the outer peripheral surface of the soft plate. Connection method. 3. The method for connecting synthetic resin eaves gutters according to claim 1, wherein a soft synthetic resin foam is used as the soft plate.