JPH0352331Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an eaves gutter whose core material is a steel plate and whose surface is coated with a synthetic resin.

[Conventional technology]

As illustrated in Figure 5, the above type of eaves gutter A
In this case, a front ear part 2 which is bulged outward is curved at the upper end of the front wall 1, and a rear ear part 4 which is bulged rearward is curved at the upper end of the rear wall 3. ing. After the front lug 2 is fitted and hooked into the U-shaped engaging part 5 provided at the front end of the eaves gutter support bracket B attached to the eaves, the rear end of the eaves gutter support bracket B is fitted. A U-shaped engaging portion 6 provided in the section
It is constructed by fitting and locking the rear ear part 4 into the holder. In addition, the front ear part 2 is attached to the eave gutter support metal fitting B.
A spring plate 7 that prevents the rear ear part 4 from separating from the engagement part 5 and a spring plate 8 that prevents the rear ear part 4 from separating from the engagement part 6 are provided. When it is fitted into the engaging part 5, its tip is pushed up by the front ear part 2, and the spring plate 8 is pushed up by the rear ear part 4.
When it is fitted into the engaging part 6, its tip is pushed up by the rear ear part 4.

When the eaves gutter A is constructed as described above, the engaging part 5 of the eaves gutter support bracket B will be in a state of holding the front ear part 2 of the eaves gutter A from the outside, so that this engaging part 5 will be visible from

However, in recent years, there has been a demand for eaves gutters to look good and have a clean feel, and in order to meet this demand, a construction method has been developed in which the entire eaves gutter support metal fittings are covered with the eaves gutters so that they are not visible. Various methods are being considered. One such construction method is to form an upwardly facing engagement piece at the tip of the eaves gutter support metal fitting, and insert this engagement piece into the front ear of the eaves gutter from inside the front ear. There is a so-called internal hanging method.

However, the conventional eaves gutter A explained in FIG.
The front ear part 2 is designed with consideration given to holding the front ear part 2 from the outside, and as shown in detail in Fig. 6,
The gap X between the lower end of the falling wall 21 of the front ear part 2 and the upper end of the front wall 1 is very narrow. Therefore, it is difficult to insert the engaging piece formed upward on the eave gutter support fitting into the front ear part 2 through this gap X, and the above-mentioned internal hanging type construction cannot be performed. Therefore, as shown in FIG. 7, by extending the upper wall 22 of the front ear part 2 inward, the gap X between the lower end of the falling wall 21 and the upper end of the front wall 1 is increased. I could think of something that had happened. In this way, the engagement piece 9 of the eave gutter support fitting B can be easily inserted into the front ear part 2 through the gap X between the lower end of the falling wall 21 and the upper end of the front wall 1, as described above. Construction can be carried out in an internally suspended manner.

[Problem that the invention attempts to solve]

However, in this way, the construction was carried out in an internal hanging type, and the falling wall 21 was
If the lower end of the eaves gutter A is supported, the strength of the falling wall 21, on which almost the entire weight of the eaves gutter _A , which has a synthetic resin coating layer _A2 formed on the surface of the core material A1 made of a steel plate, will be insufficient. Not only is this easy to occur, but when the eaves gutter A vibrates due to wind pressure etc. and the lower end of the falling wall 21 rubs against the eaves gutter support fitting B, the coating layer A ₂ is likely to peel off at this lower end. Covering layer A ₂
When the core material A1 peeled off, rainwater entered the core material and caused the core material _A1 to rust.

Additionally, if the upper wall of the front ear is supported by the upper end of the engagement piece of the eaves gutter support fitting, the upper wall of the front ear, where almost the entire weight of the eaves gutter acts, tends to lack strength. There was a problem.

This invention solves these problems,
Even though construction can be carried out in an internally suspended manner, there is no lack of strength in the falling wall at the front edge where almost the entire weight of the eaves gutter acts, and it also prevents the core material from developing due to peeling of the covering layer. The purpose of the present invention is to provide an eaves gutter that can prevent rust.

[Means for solving problems]

In order to solve the above problems, the eaves gutter of this invention is
In an eaves gutter whose core material is a steel plate and the surface of this core material is covered with synthetic resin, the upper wall of the ear part that is curved at the upper end of the front wall or the overhang that extends inward from this upper wall. A hanging part with a U-shaped cross section is curved on the wall, and a supporting wall extending toward the front side of the eaves gutter is curved at the upper end of the rising wall in this hanging part, and this supporting wall is connected to the ear part. Along the upper wall or the above-mentioned overhanging wall,
Furthermore, a gap is formed between the upper end of the front wall and the lower end of the hanging part, which is wide enough to insert the upward engaging piece formed at the front end of the eaves gutter support fitting. It has a summary.

[Effect]

In the eaves gutter having the above structure, the engaging piece of the eaves gutter support fitting is inserted through the gap between the upper end of the front wall and the lower end of the hanging part, and the lower end of the hanging part is supported by the eaves gutter support fitting. Alternatively, it is constructed by supporting the upper wall of the front ear or a projecting wall extending inward from the upper wall of the front ear by the upper end of the engagement piece. When the lower end of the hanging part is supported by the eaves gutter support fitting, almost the entire weight of the eaves gutter acts on the hanging part. In addition, if the upper wall of the front ear or a projecting wall extending inward from the upper wall of the front ear is supported by the upper end of the engaging piece, almost the entire weight of the eaves gutter acts on the upper wall or projecting wall of the front ear.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to Examples.

FIG. 1 is a sectional view showing a state in which the eaves gutter A is installed in an internally suspended manner using the eaves gutter support fitting B, and FIG. 2 is an enlarged sectional view of the front ear part 2 of the eaves gutter A. As is clear from these figures, the front ear part 2 is curved at the upper end of the front wall 1 of the eaves gutter A, and the upper wall 22 of this front ear part 2 is provided with an inner wall via a stepped part 23. A projecting wall 24 extends in the direction. In addition, the overhanging wall 24 has a U
A hanging portion 25 with a letter-shaped cross section is curved, and this hanging portion 2
A support wall 26 extending toward the front side of the eave gutter A is curved at the upper end of the rising wall 25a at 5, and further,
A diagonally downward hanging piece 2 is attached to the front end of this support wall 26.
7 is composed. The support wall 26 is placed under the overhanging wall 24 in an overlapping manner, and between the lower end of the hanging portion 25 and the upper end of the front wall 1 is an eave gutter support fitting B. A gap Y is formed at the front end and is wide enough to insert the engaging piece 9 formed upward. Note that the support wall 26
The and overhanging wall 24 may be placed along each other in an overlapping state as shown in the figure, but they may also be placed along each other with a gap provided therebetween. Further, 25b indicates a falling wall of the hanging portion 25. On the other hand, at the upper end of the rear wall 3 of the eaves gutter A, a rear ear part 4 having the same structure as a conventional eaves gutter is curved.

When constructing such an eaves gutter A in an internally suspended manner, the engaging piece 9 of the eaves gutter support fitting B is inserted through the gap Y between the lower end of the hanging portion 25 and the upper end of the front wall 1. In this way, eave gutter A was constructed in an internal hanging style,
When the lower end of the hanging part 25 is supported by the eaves gutter support bracket B as shown in Fig. 1, almost the entire weight of the eaves gutter A acts on the hanging part 25, but this hanging part 25 is as shown in Fig. 2. Since it has a double wall structure consisting of a rising wall 25a and a falling wall 25b, and is extremely strong and highly rigid, there is no fear that this hanging portion 25 will lack strength. Further, since the hanging part 25 is formed in a U-shaped cross section and the upper surface of the eaves gutter support bracket B is flat, the eave gutter A vibrates due to wind pressure etc. Even if the lower end of the falling wall 21 of the front ear part 2 rubs against the eave gutter support fitting B as in the conventional case (see Fig. 7), the coating layer _A2 at the lower end peels off. As a result, rusting of the core material _A1 due to peeling does not occur.

In addition, as shown by the imaginary line in FIG. 2, the support wall 26
When supported by the upper end of the engagement piece 9 of the eaves gutter support fitting B, almost the entire weight of the eaves gutter A acts on the double wall structure portion consisting of the support wall 26 and the overhanging wall 24. , there is no risk of insufficient strength in this part. Further, even if the coating A ₂ of the support wall 26 is peeled off by the upper end of the engagement portion 9, rainwater will not hit the upper end of the support wall 26, making it difficult for rust to form.

The eave gutter support bracket B shown in FIG. 1 is equipped with a horizontally rotatable holding piece 9a, and as shown in the figure, the overhanging wall 24 can be pressed downward by this holding piece 9a. For example, eaves gutter A may be damaged by external forces such as wind pressure.
This has the advantage of preventing the particles from floating up.
Note that a spring piece may be used instead of the holding piece 9a to prevent the eave gutter from rising due to its elasticity.

In FIGS. 1 and 2, the support wall 26 is placed under the overhanging wall 24 in an overlapping state, but in this respect, for example, as shown in FIG.
A hanging part 25 is formed with a rising wall 25a provided behind the falling wall 25b, and the upper end of the rising wall 25a of this hanging part 25 is extended to the front side of the eaves gutter A to form a supporting wall 26. , this supporting wall 26 is connected to the overhanging wall 2
It may be placed on top of 4.

FIG. 4 shows a hanging part 25 with a U-shaped cross section bent below the upper wall of the front ear part 2, and a supporting wall extending to the front side of the eaves gutter A at the upper end of the rising wall 25a of the hanging part 25. 26, and furthermore, this support wall 26
The eaves gutter A is shown with a diagonally downward hanging piece 27 curved at the front end thereof. When constructing such an eaves gutter A with an internal hanging method, insert the engaging piece 9 of the eaves gutter support bracket B through the gap Y, as shown by the imaginary line in the same figure, and hang it down as shown in the figure. The lower end of the portion 25 is supported by the eave gutter support fitting B, or the upper end of the engagement piece 9 is supported by the support wall 26. Here, the effect when the lower end portion of the hanging portion 25 is supported by the eaves gutter support metal fitting B is the same as that described in FIGS. 1 and 2. Further, the support wall 2 is connected to the upper end of the engagement piece 9.
6 is supported, almost the entire weight of the eaves gutter A acts on the double wall structure portion consisting of the support wall 26 and the upper wall 22 of the front ear portion 2, so there is no risk of insufficient strength in this portion. do not have.

In addition, in the eaves gutter A of FIGS. 3 and 4, the gap between the lower end of the hanging part 25 and the upper end of the front wall is wide enough to insert the engagement piece of the eaves gutter support fitting. This means that the eaves gutter A explained in Figures 1 and 2
The same is true for .

[Effect of idea]

As explained above, since the eaves gutter of the present invention can be constructed in an internally suspended manner, it is possible to construct the eaves gutter with a good appearance and a clean feeling. Despite this, the hanging part is strong and has high rigidity,
In addition, since the upper wall of the front ear or the overhanging wall extending inward from the upper wall of the front ear cooperates with the support wall to form a double wall structure, it is possible to In either case where the hanging part is supported or where the upper wall or the overhanging wall is supported by the engaging piece of the eave gutter support fitting, there is no risk of insufficient strength in the supporting part.

In addition, even if the lower end of the hanging part is supported by the eaves gutter support metal fittings, since the hanging part has a U-shaped cross section, the coating layer at the lower end is difficult to peel off, and the core material does not rust due to peeling. Another advantage is that even if the coating layer is peeled off by supporting the engagement piece of the eaves gutter support fitting on the support wall, it will not be exposed to rainwater and rust will be less likely to occur.

[Brief explanation of the drawing]

Figure 1 is a sectional view showing the eaves gutter of the present invention constructed in an internally suspended manner, Figure 2 is an enlarged sectional view of the front ear part of the eaves gutter, and Figure 3 is a modified example of the front ear part. 4 is a sectional view showing another modification, and FIG. 5 is a sectional view showing a conventional eaves gutter installed.
Fig. 6 is an enlarged sectional view showing the front ear of the eaves gutter in Fig. 5, and Fig. 7 shows the area between the lower end of the falling wall and the upper end of the front wall in the front ear of the conventional eaves gutter. FIG. 3 is a cross-sectional view showing an enlarged gap. DESCRIPTION OF SYMBOLS 1... Front wall, 2... Ear part, 22... Upper wall of ear part, 24... Projecting wall, 25... Hanging part, 25a...
...Rising wall in the hanging part, 26...Supporting wall, 9
...Engaging piece, A...Eave gutter, _A1 ...Core material, _A2 ...
Covering layer, B...Eave gutter support metal fittings, Y...Interval.

Claims (1)

[Scope of Claim for Utility Model Registration] In an eaves gutter whose core material is a steel plate and the surface of this core material is coated with synthetic resin, the upper wall of the curved ear at the upper end of the front wall or the inside from this upper wall. A hanging part with a U-shaped cross section is curved on the overhanging wall extending in the direction, and a support wall extending toward the front side of the eaves gutter is curved at the upper end of the rising wall in this hanging part, This supporting wall is placed along the upper wall of the ear part or the overhanging wall, and between the upper end of the front wall and the lower end of the hanging part, an upwardly facing An eaves gutter characterized by forming a gap wide enough to insert an engaging piece.