JPS608007Y2 - eave gutter joint - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an eaves gutter joint that can absorb the expansion and contraction of an eave gutter, particularly an eave gutter made of synthetic resin, due to outside temperature.

This type of eaves gutter joint has an expansion adjustment plate that can be expanded and contracted in the axial direction of the eave gutter joint body on the inner periphery of the hard eave gutter joint body, and the end of the eave gutter is adhesively fixed to this expansion adjustment plate. However, the telescopic adjustment plate is made of a soft material due to its function.

However, this soft material (polyvinyl chloride resin) had poor weather resistance due to the added plasticizer, and cracks formed when the outside temperature changed repeatedly, allowing rainwater to leak from these parts. .

The present invention was developed in consideration of these points, and its purpose is to insert an ultra-thin metal plate into a soft expansion/contraction adjustment plate without impairing the function of the expansion/contraction adjustment plate. To provide an eaves gutter joint which increases the strength of an expansion/contraction adjustment plate and prevents dimensional changes after molding and deformation of a bellows plate part after construction that obstructs the flow of rainwater.

The present invention will be described in detail below based on the illustrated embodiment. The expansion/contraction adjustment plate 5 is integrally formed of a soft material such as soft polyvinyl chloride, and is connected to the eaves gutter connecting plate from both ends of the bellows plate 2 having a corrugated cross section. 3, 3, and an extremely thin metal plate 4 made of paper steel that does not hinder the expansion and contraction of the bellows plate part 2 is inserted during molding.

The metal plate 4 does not need to be inserted over the entire length of the expansion/contraction adjustment plate 5, but may be inserted only into the bellows plate portion 2 as shown in the fourth example.

This expansion/contraction adjustment plate 5 is arranged inside the eaves gutter joint body 1 made of a hard material such as hard polyvinyl chloride, and the lower surface of one eaves gutter connecting plate 3 is attached to the end of the inner circumferential surface of the eaves gutter joint body 1. By pasting them together, an eaves gutter joint is formed, and the other eaves gutter connecting plate part 3 that is not attached to the eaves gutter joint body 1 can be moved by the expansion and contraction of the bellows plate part 2.

Therefore, by fitting the ends of the pair of eaves gutters 6 into the inner periphery of the eaves gutter joint body 1 from both ends, respectively, and pasting the ends of the eaves gutters 6 on the upper surfaces of the eaves gutter connecting plates 3, 3. Both eaves gutters 6.
Connect 6 as shown in Figure 2.

Due to changes in outside temperature, eaves gutters 6
When the eaves gutter expands, as shown in FIG.
absorbs the elongation of the eave gutter 6 and similarly contracts, the bellows plate part 2
This contraction will be absorbed by elongation.

As described above, in the present invention, the eave gutter connecting plate portions to which the eave gutter is fixed to the inner peripheral surface are extended from both ends of the bellows plate portion that is freely expandable and contractible in the axial direction of the eave gutter joint body. Since it is a flexible expansion/contraction adjustment plate arranged on the inner circumference of the eaves gutter joint, it is possible to absorb the expansion and contraction of the eaves gutter joint body and the expansion/contraction adjustment plate arranged on the inner circumference of the eaves gutter. The eave gutter joint itself is a simple structure similar to that of an eaves gutter, making it easy to manufacture. It has the advantage that it is easy to attach the expansion/contraction adjustment plate to the inner circumferential surface of the gutter joint body, and since an extremely thin metal plate is inserted into at least the bellows plate part of the expansion/contraction adjustment plate, the expansion/contraction adjustment plate is easy to install. Although the bellows plate part of the adjustment plate is exposed, it does not deteriorate over time because the bellows plate part, which absorbs the expansion and contraction of the eaves gutter, is reinforced with an inserted metal plate. Even if cracks occur, the metal plate prevents rainwater from leaking, and also prevents dimensional changes after molding as well as deformation after construction, which can obstruct the flow of rainwater. It is something that can be done.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the same, Fig. 3 is a sectional view showing the effect of the above, and Fig. 4 is a sectional view of main parts showing another embodiment. be. 1 is the eaves gutter joint body, 2 is the bellows plate part, 3 is the eave gutter connection plate part,
4 is a metal plate, and 5 is an expansion/contraction adjustment plate.

Claims (1)

[Scope of utility model registration request] The eave gutter connecting plate portions to which the eaves gutter is fixed to the inner circumferential surface are extended from both ends of the bellows plate portion that is freely expandable in the axial direction of the eaves gutter joint body to form a soft expansion/contraction adjustment plate, and this expansion/contraction adjustment Insert an ultra-thin metal plate into at least the bellows plate part of the plate,
This is an eaves gutter joint in which an expansion/contraction adjustment plate is arranged on the inner circumference of the eaves gutter joint body, and one eave gutter connection plate is fixed to the inner circumferential surface of the eaves gutter joint body.