JPH10238034A - Curved joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a crack by forming a curved joint provided with a notch section notched from the internal angle side edge of a curve section to the outside angle direction and an erect wall at the edge section of the notch section, and curving a bottom plate protrusively downward from the bottom plate of an eaves gutter near the curve section. SOLUTION: This curved joint 4 is formed with an eaves gutter connection section 5 constituted of an outdoor wall 51, an indoor wall 52, and bottom plate 53 and a curve section 6 constituted of an outdoor wall 61, an indoor wall 62, and a bottom plate 63. The bottom plate 63 is curved downward than the bottom faces of an eaves gutter and the eaves gutter connection section 5 near the curves section 6, and cutout section 7 cut from the internal angle side edge of the curves section 6 to the outside angle direction and an erect wall 8 are formed. An adhesive is applied to the eaves gutter and the inner periphery of the eaves gutter connection section 5 of the curved joint 4, the end section of the eaves gutter is inserted into the eaves gutter connection section 5, and an indoor/outdoor side lug are coupled and connected to indoor/outdoor side lug hold section 54, 55. Even when the eaves gutter is repeatedly expanded and shrunk by the temperature difference between summer and winter, the curve section 6 is cut, and the occurrence of a crack on the remaining portion can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a bending joint.

[0002]

2. Description of the Related Art Generally, an eave gutter having an indoor side wall, an outdoor side wall, and a bottom plate formed in a groove shape is attached below a roof to receive rainwater falling on the roof. Therefore, it is necessary to bend the eaves gutter at a substantially right angle at the outer corner or the inner corner of the roof. In such a place, there is usually 1-83
A bent joint as described in JP-A-833 is attached.

In this bent joint, an indoor side wall, an outdoor side wall, and a bottom plate are formed in a groove shape, and an eaves gutter connection portion is formed at both ends of the groove shape, and a substantially right angle is formed between the eave gutter connection portions at both ends. A bent portion is provided, and the eave gutter is connected to the eave gutter connecting portions provided at both ends. Then the eaves gutter is attached almost at right angles. However, if the eaves gutter is connected by such a bent joint, the eaves gutter repeatedly expands and contracts due to a temperature difference in summer and winter, and the pressure of the expansion and contraction concentrates on the bent portion of the bent joint, and this Cracks may be formed in the bent portion or the bent portion may be broken.

In order to solve such a problem, Japanese Utility Model Laid-Open No.
As described in JP-A-14740, JP-A-59-196623 and JP-A-3-117035,
2. Description of the Related Art A bent joint is known in which a notch portion cut out from an inner corner side edge of a bent portion toward an outer corner direction and an upright wall provided upright along an edge of the notch portion are known. When the eaves gutter expands and contracts due to temperature differences in summer and winter, the bent joints are notched and the remaining part is thin and easily deformed. It absorbs the expansion and contraction of.

[0005]

However, if expansion and contraction are repeated frequently due to a temperature difference between summer and winter, only the cut-out portion of the notch is often deformed, and as a result, the remaining portion is not deformed. However, there is a problem that the tire is cracked or cracked and rainwater leaks. Therefore, an object of the present invention is to
A bent joint provided with a cutout portion cut out from the inside corner side edge to the outside corner direction of the bent portion and an upright wall standing along the edge portion of the cutout portion, wherein a temperature difference between summer and winter is provided. Even if the eaves gutter repeatedly expands and contracts, the present invention provides a bent joint that does not crack or break in the remaining portion.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object. An indoor side wall, an outdoor side wall, and a bottom plate are formed in a groove shape, and eaves gutters are formed at both ends of the groove shape. A connecting portion and a bent portion bent substantially at a right angle between the eaves gutter connecting portion at both ends are provided, and the bent portion has a cutout portion cut out in a direction from the entering corner side to the outside corner direction. In a bent joint provided with an upright wall standing along the edge of the notch, the eaves gutter connecting portion is formed in such a shape that an inner peripheral surface is in contact with an outer peripheral surface of the eaves gutter, In the vicinity, the bottom plate is curved so as to protrude downward from the bottom plate of the eaves gutter.

(Action) In the present invention, the eaves gutter connection portion is formed in such a shape that the inner peripheral surface is in contact with the outer peripheral surface of the eaves gutter.
The end of the eaves gutter is inserted into the eaves gutter connection portion, and the outer periphery of the eaves gutter can be brought into contact with the inner peripheral surface of the eaves gutter connection portion for connection.

When the eaves gutter is connected to the eaves gutter connection portion as described above, the eaves gutter repeatedly expands and contracts due to a temperature difference in summer and winter, and the pressure of the expansion and shrinkage increases the bending portion. Focus on However, in the present invention, since the bottom plate is curved downward from the bottom plate of the eaves gutter in the vicinity of the bent portion, when a force for pushing or extending from both sides is applied to the bottom plate, the curvature of the curved bottom plate is easily increased. Has a shape that is easy to be large or small. Therefore, when the pressure of expansion and contraction is applied to the eaves gutter, the entire downwardly curved portion in the vicinity of the bent portion is deformed without difficulty. Thus, since only a part is not deformed but the whole is deformed, the bent portion is not cracked or broken.

[0009]

Next, embodiments of the present invention will be described. 1 to 3 show one embodiment of the bent joint of the present invention, and FIG. 1A is an explanatory view showing a plane of the bent joint.
(B) is an explanatory view showing a section taken along line AA of (A),
(C) is an explanatory view showing a cross section taken along line BB of (a),
FIG. 2A is an explanatory view showing a use state of the bent joint;
(B) is an explanatory view showing a main part of the C portion of (A), (C)
FIG. 3B is an explanatory view showing a plane of FIG. 3A, FIG. 3A is an explanatory view showing a state of deformation near a bent portion of the bent joint when the eaves gutter is expanded, and FIG. It is explanatory drawing which shows the state of deformation | transformation of the vicinity of the bending part of a bending joint.

1 to 3, reference numeral 1 denotes a building,
Reference numeral 1 denotes a roof consisting of a ridge to which the building 1 is attached. 2 is an eaves gutter attached below the roof 11,
The eaves gutter 2 includes an outdoor side wall 21, an indoor side wall 22, and a bottom plate 23.
Is provided at the upper end of the indoor side wall 22. The eaves gutter 2 is suspended by an eaves gutter suspender 3 attached to the tip of the eaves.

Reference numeral 4 denotes a bent joint for connecting the eaves gutter 2 at the eaves corner. The bent joint 4 includes an eaves gutter connection portion 5 and a bend portion 6 as shown in FIG. The eaves gutter connection portions 5 are provided at both ends of the bent joint 4 and have a shape that comes into contact with the outer peripheral surface of the eaves gutter 2. That is, the eaves gutter connecting portion 5 has an outdoor wall 51 abutting on the outdoor side wall 21 of the eaves gutter 2,
The eaves gutter 2 includes an indoor wall 52 abutting on the indoor side wall 22 and a bottom plate 53 abutting on the bottom plate 23 of the eave gutter. Further, the upper end of the outdoor wall 51 has an outer ear holding portion 54 fitted to the outer ear 24 of the eave gutter 2, and the upper end of the indoor wall 52 has the inner ear holding portion 55 fitted to the inner ear 25 of the eave gutter 2. Are provided. The bottom plate 53 is a substantially flat plate-like body as shown in FIG.

The bent portion 6 is provided between the eaves gutter connecting portions 5 provided at both ends, and near the bent portion 6,
An outdoor wall 61 in which the outdoor wall 51 of the eave gutter connection portion 5 is extended,
An indoor wall 62 is formed by extending the indoor wall 52, a bottom plate 63 is formed by extending the bottom plate 53, and an outdoor ear holding portion 64 is formed by extending the outdoor ear holding portion 54. Then, as shown in FIG. 1C, the bottom plate 63 is curved so as to protrude downward.

Therefore, in the vicinity of the bent portion 6, the bottom plate 63 is curved downward from the bottom surfaces 23 and 53 of the eaves gutter 2 and the eaves gutter connection portion 5, so that when a force for pushing or extending from both sides is applied to the bottom plate 63. The shape of the curved bottom plate 63 is easily increased or decreased. The bent portion 6 is provided with a cutout portion 7 cut out from the entering corner side edge to the outgoing corner direction, and an upright wall 8 standing up along the edge of the cutout portion 7.

Next, the method of use and operation of the bent joint will be described. Attach the eave gutter hanging device 3 to the eaves,
The eaves gutter 2 is attached to the eaves gutter suspension 3. A bent joint 4 is attached to the protruding corner of the eaves gutter 2.

A method of attaching the bent joint 4 to the eaves gutter 2 will be described in detail. An adhesive is applied to the outer peripheral surface of the connection end of the eaves gutter 2 and the inner peripheral surface of the eaves gutter connection 5, and the end of the eaves gutter 2 is put into the eaves gutter connection 5. Outdoor side wall 2
1. The indoor side wall 22 and the bottom plate 23 are respectively along the outdoor side wall 51, the indoor side wall 52 and the bottom wall 53 of the eave gutter connection part 5, the outdoor side ear 24 is on the outdoor side ear holding part 54, and the indoor side ear 2 is
The eaves gutter 2 is fitted into the indoor ear holding portion 55, and the outer peripheral surface of the eaves gutter 2 is brought into contact with the inner peripheral surface of the eaves gutter connection portion 5 to be connected.

When the eaves gutter 2 is connected to the eaves gutter connection portion 5 in this manner, the eaves gutter 2 repeatedly expands and contracts due to a temperature difference in summer and winter, and the pressure of the expansion and contraction is applied. That is, when the eaves gutter 2 expands in the summer, the outside ears 24
Is firmly locked to the eaves gutter hanging tool 3 and the indoor side ear 25 only rests on the indoor side ear holding portion of the eaves gutter hanging tool 3 and slides as shown by the dotted line in FIG. In the meantime, the eaves gutter hanging tool 3 is inclined in the direction of the protruding corner, and the bent portion 6 of the bent joint 4 is
From both sides.

Then, the opening of the notch 7 is narrowed, and FIG.
As shown in (a), the inner wall 62 near the bent portion 6 is pushed out more than the indoor wall 62, and the outdoor wall 61 is pulled. However, since the curvature of the curved bottom plate 63 is increased, no excessive force is applied to any part. No cracks occur. Also in winter,
When the eaves gutter 2 contracts, on the contrary, as shown by the dotted line in FIG.
The bent portion 6 of the bent joint 4 is pulled from both sides.

Then, the opening of the notch 7 expands, and FIG.
As shown in (b), the outdoor wall 61 is pushed out more than the indoor wall 62 near the bent portion 6, and the outdoor wall 61 is pushed out.
No force is applied anywhere, and therefore no cracking occurs.

As described above, the bottom plate 63 is provided near the bent portion 6.
Is curved downward from the bottom surfaces 23 and 53 of the eaves gutter 2 and the eaves gutter connection portion 5, and when a force for pushing or extending from both sides is applied to the bottom plate 63, the curved portion becomes more easily curved or extended. Therefore, when the pressure of expansion and contraction is applied to the eaves gutter, the entire downwardly curved portion near the bent portion 6 is deformed without difficulty. Thus, since only a part is not deformed but the whole is deformed, the bent portion 6 is not cracked or broken.

[0020]

According to the present invention, since the eaves gutter connecting portion is formed so that the inner peripheral surface is in contact with the outer peripheral surface of the eaves gutter, the outer peripheral surface of the eaves gutter is connected to the inner peripheral surface of the eaves gutter connecting portion. It can be connected by contact. Further, in the present invention, since the bottom plate is curved downward from the bottom plate of the eaves gutter in the vicinity of the bent portion, when the eaves gutter expands and contracts, the entire downwardly curved portion in the vicinity of the bent portion is deformed without difficulty. Therefore, the bent portion is not cracked or cracked, so that it can be used for a long time, so that it is safe.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a bent joint of the present invention.
(A) is an explanatory diagram showing a plane of a bent joint, (B) is an explanatory diagram showing a cross section taken along line AA of (A), and (C) is an explanatory diagram showing a cross section taken along line BB of (A). It is.

FIG. 2A is an explanatory view showing a use state of a bent joint;
(B) is an explanatory view showing a main part of the C portion of (A), (C)
FIG. 4 is an explanatory view showing a plane (b).

FIG. 3A is an explanatory view showing a state of deformation near a bent portion of a bent joint when an eaves gutter is expanded, and FIG. 3B is a diagram illustrating a state of deformation near a bent portion of a bent joint when a eaves gutter is contracted. It is explanatory drawing which shows a state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Building 11 Roof 2 eave gutter 3 eave gutter hanging tool 4 bend joint 5 eave gutter connection part 6 bend part 7 notch part 8 standing wall

Claims (1)

[Claims] 1. An indoor side wall, an outdoor side wall, and a bottom plate are formed in a groove shape, and an eaves gutter connection portion is formed at both ends of the groove shape, and is bent at substantially right angles between the eaves gutter connection portions at both ends. Bent joint provided with a notched portion cut out from the inward corner to the outgoing corner and an upright wall standing along the edge of the notched portion. In the eaves gutter connecting portion, the inner peripheral surface is formed to be in contact with the outer peripheral surface of the eaves gutter, and in the vicinity of the bent portion, the bottom plate is curved so as to protrude downward from the bottom plate of the eaves gutter. A bent joint characterized by the following.