JP3554669B2 - Bent joint - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bent joint used at a corner of an eave.
[0002]
[Prior art]
Conventionally, eaves gutters have been connected using, for example, an L-shaped bent joint at the corner of a ridge-type roof. As the curved joint, there are a corner type used at the corner of the roof and a corner type used at the corner of the roof (for example, see Japanese Utility Model Publication No. 59-40496).
[0003]
By the way, in the bent corner type joint described above, when the eaves gutter 4 on both sides adhesively connected to the curved joint 1 contracts due to a temperature difference, the curved joint 1 is pulled as shown in FIG. At this time, as shown in FIG. 6, the lower part of the rear wall 23 of the curved joint body 2 located on the eaves side of the building is actively pulled and hits the nose shield 5 at the eaves.
[0004]
For this reason, the front surface of the fascia plate 5 is rubbed at the lower part of the indoor side wall of the eaves gutter connection portion 3 of the curved joint 1 to leave traces, or the corner of the curved joint main body 2 is located at the corner of the eaves. There has been a problem that the bent joint 1 is broken due to the crotch. Further, even if the bent joint 1 is not damaged, there is a problem that a gap is formed in the connection portion with the eaves gutter 4 and the water stopping performance of the connection portion is reduced.
[0005]
In the case of the corner fitting type bent joint, when the eaves gutter is extended, the bent joint is compressed, but in this case, the bent joint main body due to the above-described crotch is hardly damaged. 6 is a gutter support for supporting the eaves gutter 4.
[0006]
[Problems to be solved by the invention]
As a bending joint for preventing the breakage of the bending joint body due to such a crotch, for example, in Japanese Utility Model Registration No. 2514959, in a bending joint in which two eave gutter connection portions are formed in a direction where connection directions cross each other, By forming the corner of one of the side walls disposed on the building side over the entire height and projecting toward the corner of the other side wall disposed on the outdoor side, a blind alley communicating vertically is formed. A curved joint is disclosed in which the inner side of the blind alley has a curved surface, and this blind alley communicates with the outside of the corner on the building side through a slit.
[0007]
However, although this curved joint can absorb shrinkage of the eaves gutter to some extent, it is impossible to absorb significant shrinkage of the eaves gutter. There was still a problem that a trace was left by being rubbed at the lower portion, or a gap was formed at a connection portion with the eaves gutter, and the water stopping performance of the connection portion was reduced.
[0008]
It is an object of the present invention to provide a bent joint, particularly in a corner joint type, which does not damage the front surface of the fascia plate due to shrinkage of the eaves gutter and does not cause breakage at the corner of the eaves by crotch. To provide.
[0009]
[Means for Solving the Problems]
The present invention according to claim 1 is a bent joint in which an eave gutter connecting portion to which an end of an eave gutter is bonded is provided at both ends of a bent joint body having a substantially L-shape in plan view. the entire side wall of the indoor side is provided projecting on the outdoor side, and the side wall of the indoor side lower portion inclined chamfered wall of the connecting portion of the indoor side wall of the eaves gutter connecting portions are provided, is the inclined chamfered wall A substantially L-shaped protruding piece is provided so as to protrude forward from a corner end face of the existing eave gutter connection portion .
[0010]
[0011]
According to a second aspect of the present invention, there is provided a curved joint in which an eaves gutter connection portion to which an end of an eaves gutter is attached is provided at both ends of a curved joint body having a substantially L-shape in plan view. The entire side wall of the indoor side of the bent joint body is provided so as to protrude to the outdoor side, and inside the connection portion between the indoor side wall and the indoor side wall of the eaves gutter connection portion, the inside of the indoor side wall of the bent joint body is inside the joint. A strut member for preventing falling is disposed.
[0012]
(Action)
According to the first aspect of the present invention, the entirety of the indoor side wall of the bent joint body is provided so as to protrude to the outdoor side, and a lower portion of a connecting portion between the indoor side wall and the indoor side wall of the eave gutter connection portion. Since the beveled wall is provided at the bottom, even if the curved joint is pulled by the shrinkage of the eaves gutter and the indoor side wall of the curved joint body falls down inside the joint, the inclined beveled wall is formed at the lower part of the connecting part. By being present, the lower part of the connecting part is prevented from abutting the lower part of the connecting part on the front surface of the fascia. For this reason, there is no possibility that a scar is left on the front surface of the nose shield plate, or a gap is generated at a connection portion with the eaves gutter, thereby lowering the water stopping performance. In addition, breakage of the bent joint due to crotch can be prevented.
[0013]
Also, since a substantially L-shaped projecting piece is projected forward from the corner end face of the eaves gutter connecting portion where the inclined chamfer wall exists, the corner of the eaves gutter to be connected corresponding to this projecting piece is formed. By partially notching the portion, the end of the eaves gutter can be connected to the eaves gutter connection of the bend joint, despite the presence of the inclined chamfer wall.
[0014]
In the present invention according to claim 2, the entire indoor side wall of the bent joint main body is provided so as to protrude to the outdoor side, and the inside of the connecting portion between the indoor side wall and the indoor side wall of the eave gutter connection portion. Since the tension member is disposed to prevent the indoor side wall of the bent joint body from falling down into the inside of the joint, even if the bent joint is pulled by the shrinkage of the eaves gutter, the inside of the indoor side wall of the bent joint body is inserted into the joint. It is hard to fall down. For this reason, the corner of the bent joint body does not locally hit the corner of the eaves tip, that is, the tensile stress is not locally concentrated, and breakage of the bent joint due to crotch can be prevented.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a bending joint according to a first embodiment of the present invention together with a state of use, and FIG. 2 is a cross-sectional view of a main part of FIG.
[0016]
In FIG. 1, reference numeral 1 denotes a 90-degree bent joint made of a hard vinyl chloride resin, which is used at a protruding corner of an eave. The bent joint 1 includes an L-shaped bent joint main body 2 in plan view, and eave gutter connection sections 3 and 3 provided integrally at both ends of the bent joint main body 2. The inner shapes of the curved joint main body 2 and the both eaves gutter connection portions 3 are formed to have shapes substantially matching the outer shapes of the eaves gutters to be connected.
[0017]
The curved joint body 2 includes a bottom 21, a front wall 22 erected from both sides of the bottom 21, and a rear wall 23. The front side wall 22 slightly protrudes outward, and a step is provided at a lower portion thereof. The rear wall 23 stands substantially vertically. As is clear from FIGS. 1 and 3, the entire rear wall 23 is provided so as to protrude to the outdoor side. In other words, when the bent joint 1 is disposed at the corner of the eaves, a gap wider than the two eaves gutter connection portions 3 is formed between the bent joint 1 and the front surface of the nose shield plate 5. The front side wall 22 is higher than the rear side wall 23. Locking pieces 321 and 331 having a U-shaped cross section for locking the ears 41 of the eaves gutter 4 are provided at upper ends of the front side wall 32 and the rear side wall 33 of the both eaves gutter connection portions 3, respectively.
[0018]
An inclined chamfered wall 332 is provided at a lower portion of a connecting portion between the rear side wall 23 of the curved joint body 2 and the rear side wall 33 of the eave gutter connection section 3. Further, substantially L-shaped protruding pieces 333 are integrally provided forward from the end faces near the corners of the both eaves gutter connecting portions 3 where the inclined chamfered walls 332 are present.
[0019]
Next, a method of arranging an eaves gutter at the eaves of a building using the bent joint 1 will be described. First, a gutter support 6 is attached to the front of the nose cover 5 at a predetermined interval, and the eave gutter 4 is supported by the gutter support 6. The eaves gutter 4 includes a bottom wall 41 and a front side wall 42 and a rear side wall 43 erected from both sides of the bottom wall 41. Ear portions 421 and 431 each having a U-shaped cross section are provided at upper ends of the front side wall 42 and the rear side wall 43, respectively. Then, the eaves gutter connection portions 3, 3 of the curved joint 1 in which an adhesive has been applied to the inner surfaces of the eave gutter connection portions 3, 3 in advance on the outer surfaces of the ends of the eave gutters 4, 4 located at the protruding corners of the eaves. Are fitted and connected. Note that an adhesive is also applied to the inner surface of the protruding piece 333.
[0020]
At this time, as shown in FIG. 1, before the connection, the wall near the corner of the eaves gutter 4 corresponding to the protruding piece 333 is partially cut out to form the notch 431 a, so that the eaves 431 are formed. The end of the eaves gutter 4 can be connected to the eaves gutter connection 3 of the bend joint 1 despite the presence of the inclined chamfered wall 332 on the back side of the gutter connection 3.
[0021]
In this bent joint 1, the entire rear wall 23 of the bent joint main body 2 is provided so as to protrude outside, so that when the bent joint 1 is arranged at the corner of the eaves, the space between the bent joint 1 and the front surface of the cover plate 5 is reduced. In this case, a gap that is wider than that of the both eaves gutter connection portion 3 can be taken. For this reason, even if the bent joint 1 is pulled by the shrinkage of the both eaves gutters 4, the rear side wall 23 of the bent joint main body 2 does not hit the front surface of the blindfold plate 5 to some extent, and the blindfold plate 5 does not hit. The front of the is not scratched.
[0022]
Further, since the inclined chamfered wall 332 is present below the connecting portion between the rear side wall 23 of the curved joint body 2 and the rear side wall 33 of the eave gutter connection portion 3, even if the bent joint 1 is pulled, the eaves are not formed. The lower portion of the rear side wall 33 of the gutter connection portion 3 does not hit the front surface of the fascia plate 5, and the front surface of the fascia plate 5 is not damaged.
[0023]
Furthermore, despite the wall in the notch 431a of the corner portion near the eaves gutter 4 are present, each projecting projecting pieces 333 from the end face of the corner portion near the both eaves gutter connecting portions 3 of bending joint 1 Therefore, the presence of the protruding piece 333 substantially increases the bonding area. For this reason, regardless of the presence of the notch 431a, the water stopping property of the connection portion is favorably maintained.
[0024]
FIG. 4 is a perspective view showing a second embodiment (corresponding to claim 3) of the bent joint of the present invention. The same portions as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.
[0025]
In the figure, the entire rear wall 23 of the bent joint main body 2 is provided so as to protrude to the outdoor side similarly to the first embodiment. In this case, instead of providing the inclined chamfered wall 332 at the lower part of the connection between the rear side wall 23 of the bent joint body 2 and the rear side wall 33 of the eaves gutter connection part 3, the rear side wall 23 and the rear wall of the eaves gutter connection part 3 are provided. One end of a U-shaped strut member 332a is fixed inside the connection portion with the 33, and the other end of the strut member 332a is fixed to the bottom of the connection portion. The strut member 332a prevents the rear side wall 23 of the bent joint main body from falling into the inside of the joint.
[0026]
As described above, since the K-shaped strut member 332a is arranged inside the connection between the rear wall 23 and the rear wall 33 of the eaves gutter connection section 3, the joint inner side of the rear wall 23 of the bent joint body 2 is formed. It is possible to prevent the bent joint main body 2 from being broken at the corner of the eaves by the crotch.
[0027]
In the above embodiment, the bent joint used at the eaves corner of the eaves is illustrated, but the present invention can be applied to a bent joint used at the eaves corner of the eaves.
[0028]
【The invention's effect】
In the present invention of claim 1, the entire side wall on the indoor side of the bent joint main body is provided so as to protrude to the outdoor side, and a lower portion of a connecting portion between the indoor side wall and the indoor side wall of the eave gutter connection portion. Since the sloped chamfer wall is provided, even if the bent joint is pulled by the shrinkage of the eaves gutter and the indoor side wall of the bent joint body falls down inside the joint, there is a sloped chamfer wall under the connecting part. By doing so, the lower part of the connecting part is prevented from contacting the lower part of the connecting part with the front surface of the fascia.
[0029]
For this reason, it does not occur that a scar is left on the front surface of the nose shield plate or a gap is formed at a connection portion with the eaves gutter, thereby lowering the water stopping performance. In addition, breakage of the bent joint due to crotch can be prevented.
[0030]
Also , since a substantially L-shaped projecting piece is projected forward from the corner end face of the eaves gutter connecting portion where the inclined chamfer wall exists, the corner of the eaves gutter to be connected corresponding to this projecting piece is formed. By partially notching the portion, the end of the eaves gutter can be connected to the eaves gutter connection of the bend joint, despite the presence of the inclined chamfer wall.
[0031]
In the present invention according to claim 2, the entire indoor side wall of the bent joint main body is provided so as to protrude to the outdoor side, and the inside of the connecting portion between the indoor side wall and the indoor side wall of the eave gutter connection portion. Since the tension member is disposed to prevent the indoor side wall of the bent joint body from falling down into the inside of the joint, even if the bent joint is pulled by the shrinkage of the eaves gutter, the inside of the indoor side wall of the bent joint body is inserted into the joint. It is hard to fall down.
[0032]
For this reason, the corner of the bent joint body does not locally hit the corner of the eaves tip, that is, the tensile stress is not locally concentrated, and breakage of the bent joint due to crotch can be prevented.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a bending joint according to a first embodiment of the present invention together with a use state.
FIG. 2 is a sectional view of a main part of FIG.
FIG. 3 is a perspective view showing a use state of the bent joint of FIG. 1;
FIG. 4 is a perspective view showing a bending joint according to a second embodiment of the present invention.
FIG. 5 is an explanatory view showing a deformed state of a conventional bent joint.
FIG. 6 is a cross-sectional view of a main part of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 1A Bending joint 2 Bending joint main body 21 Bottom part 22 Front side wall 23 Rear side wall 3 eave gutter connection part 32 Front side wall 33 Rear side wall 321, 331 Locking piece 332 Inclined chamfered wall 332a Strut member 333 Projection piece 4 eaves gutter
431a notch 5 nose shield 6 gutter support

Claims (2)

A bent joint comprising an eaves gutter connecting portion to which an end of an eaves gutter is provided at both ends of a substantially jointed L-shaped bent joint main body,
Entire side wall of the indoor side of the bending joint body is provided protruding to the outside side, and the side wall of the indoor side lower portion inclined chamfered wall of the connecting portion of the indoor side wall of the eaves gutter connecting portions are provided, the A bent joint characterized in that a substantially L-shaped protruding piece is protruded forward from an end face of a corner portion of an eave gutter connecting portion where an inclined chamfer wall exists . A bent joint comprising an eaves gutter connecting portion to which an end of an eaves gutter is provided at both ends of a substantially jointed L-shaped bent joint main body,
The entire indoor side wall of the bent joint main body is provided so as to protrude to the outdoor side, and inside the connected portion between the indoor side wall and the indoor side wall of the eave gutter connection portion, the indoor side wall of the bent joint main body is provided. A bent joint comprising a tension member for preventing the joint from falling into the inside of the joint.

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