JPH0719449U - Eaves gutter bent joint - Google Patents

Abstract

(57) [Summary] [Structure] In the eaves gutter bending joint 2, an uneven strip is formed in the bent portion in the cross-sectional direction to form a bellows shape 3. [Effect] Even if the eaves gutter 1 repeatedly expands and contracts due to temperature changes in the summer and winter, the bellows part 3 composed of the uneven strips absorbs it. Therefore, the eaves trough bending joint 2 is not damaged.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an eaves trough bending joint.

[0002]

[Prior art]

 Conventionally, various eaves gutter bent joints are known, but the most common eaves gutter bent joints are disclosed in JP-A-56-52537, JP-A-56-41029, and JP-A-157-66126. As described, a long piece with a grooved cross section is bent at a specified angle.The method of using this eaves gutter joint is to use both ends of the eaves gutter joint and the end of the eaves gutter. Apply adhesive to each part and glue the end of the eaves gutter and the end of the eaves gutter joint. In this method, the bent joint of the eaves gutter and the eaves gutter are firmly fixed with an adhesive.

[0003]

[Problems to be solved by the device]

 However, if the eaves gutter and the eaves gutter bent joint are firmly fixed with an adhesive in this way, the eaves gutter expands and contracts in the summer, and contracts in the winter. , Due to the expansion and contraction of the eaves gutter, the eaves gutter presses and pulls against each other at the bend of the eaves gutter joint, resulting in the concentration of force on the bend and the damage to the eaves gutter joint. . Therefore, an object of the present invention is to provide a bent joint for eaves gutter that is not damaged by expansion and contraction due to temperature difference in summer and winter.

[0004]

[Means for Solving the Problems]

 The present invention has been made to achieve the above object, and in an eaves trough joint in which a long piece having a groove-shaped cross section is bent at a predetermined angle, the bent part is long in the cross-sectional direction. It is formed in a bellows shape with uneven lines. In the eaves trough bending joint of the present invention, a long concave-convex strip is formed in the cross-sectional direction in the bent portion to form a bellows shape, but the range and shape of this bellows shape may be appropriate. Particularly, it is advisable to form a bellows shape by forming a fan-shaped concavo-convex strip on the opposite side, which requires a corner near the outside or inside.

[0005]

[Action]

 Since the bent joint of the eaves trough of the present invention is formed in a bellows shape with long ridges formed in the cross-sectional direction, it has a shape that easily expands and contracts in the longitudinal direction, which is a direction substantially perpendicular to the ridges. . Therefore, even if the eaves gutter repeatedly expands and contracts due to the temperature difference of the eaves gutter, and presses or pulls the curved parts together, the expansion and contraction of this bellows-like part is absorbed and the expansion and contraction are absorbed. Bending joints are not damaged. In particular, if the curved portion is formed into a bellows shape, which requires a portion near the outer corner or the portion near the inner corner and has a fan shape on the opposite side, it is easy to absorb expansion and contraction.

The reason will be described below. That is, if the curved portion is formed with a concavo-convex strip that requires the vicinity of the outer corner or the inner corner and expands in a fan shape on the opposite side, it easily rotates around the outer corner or the inner corner. . In other words, the angle near this angle is likely to change. On the other hand, as the eaves gutter expands and contracts, the eaves gutter pushes and pulls against each other, and as a result, the direction of the force generated at the bent part of the eaves gutter joint is the direction of expanding or contracting the bent angle. become. In this way, since the eaves gutter bending joint is easily bent and the direction of the force generated by the eaves gutter expansion / contraction is the same, the expansion / contraction of this eaves gutter is easily absorbed.

[0007]

【Example】

 Next, an embodiment of the present invention will be described. FIG. 1 shows an embodiment of the eaves trough bending joint of the present invention, and is an explanatory view showing a state in which the eaves trough bending joint is connected to the eaves trough. FIG. 2 shows another embodiment of the present invention and is an explanatory view showing a state in which eaves gutters are connected by eaves gutter bending joints.

In FIG. 1, reference numeral 1 denotes an eaves gutter made of a vinyl chloride resin and having an elongated body with a semicircular cross section. Thick ears 11, 11 are provided on both side edges of the eaves gutter 1. 2 is an eaves trough bending joint made of vinyl chloride resin, and this eaves trough bending joint 2 is a groove-shaped elongated small piece having a semicircular cross section bent substantially at right angles, and both ends are eaves troughs. A connecting portion 22 provided with connecting pieces 21 and 21 capable of locking the tip of 1 and an ear holding portion 23 for fitting the ear portion 11 of the eaves gutter 1 are provided on both side edges. Reference numeral 3 denotes a bellows-like portion provided in a bent portion of the eaves trough bending joint 2. The bellows-like portion 3 has a fan-shaped inwardly extending portion that requires a corner portion slightly inside from an outer corner. Uneven ridges are formed.

Next, a method and an operation of connecting the eaves gutters 1 and 1 with the eaves gutter bending joint 2 will be described. Apply adhesive to the connection parts 22 and 22 at both ends of the eaves gutter bending joint 2 and the outer peripheral surface of the end part of the eaves gutter 1, and while abutting them, lock the tip of the eaves gutter 1 to the connection piece 21. The ear portion 11 is fitted into the ear holding portion 23. When this adhesive solidifies, the eaves gutter 1 and the eaves gutter-to-borrow joint 2 are firmly adhered.

When the eaves troughs 1 and 1 are connected by the eaves trough bending joint 2 in this way, when the eaves troughs 1 and 1 on both sides that are connected expand in the summer, the corners of the eaves trough bending joint 2 are changed. Push out from both sides, and force acts in the direction that the angle of the bent part shrinks. In this eaves trough bending joint 2, since the bellows-like portion 3 of the bent portion is formed with a concave-convex strip that expands in a fan shape inside, requiring the vicinity of the outer corner, centering on this outer corner. The angle shrinks. That is, the inside of the bent portion shrinks. Therefore, the eaves gutter bending joint 2 is not damaged by absorbing the expansion of the eaves gutters 1 and 1 on both sides.

Since the outer side is shorter than this point, the amount of extension is small, and therefore the strain in this part is small and it is not damaged. Conversely, when the eaves gutters 1 and 1 on both sides contract in the winter, conversely, the bellows-shaped portion 3 expands to absorb the contraction of the eaves gutters 1 and 1 on both sides and the eaves gutter bending joint 2 is formed. It will not be damaged. In this way, the bellows-like portion 3 absorbs the expansion and contraction of the eaves gutter 1. As a result, the eaves trough bending joint 2 is not damaged.

Next, the embodiment shown in FIG. 2 will be described. When the embodiment shown in FIG. 2 is compared with the embodiment shown in FIG. 1, it is found that the bellows-like portion 3a of the eaves-gutter bending joint 2a is formed with an uneven strip that requires an inner corner and expands outward in a fan shape. different. Since the other parts have the same structure as in FIG. 1, the description thereof will be omitted.

Using this eaves gutter bending joint 2a, the eaves gutters 1a and 1a are connected by the same operation as that of the embodiment shown in FIG. Thus, when the eaves gutters 1a and 1a are connected by the eaves trough bending joint 2a, the eaves gutter bending joint 2a is bent when the eaves troughs 1a and 1a on both sides which are connected are expanded in the summer. A force works in the direction that the angle shrinks.

In this eaves trough bending joint 2a, since the bellows-like portion 3a of the bent portion is formed with an uneven line which requires an inner corner and expands in a fan shape on the outer side, the inner corner is centered. And the angle spreads. That is, the outside of the bent portion expands. In this way, the bellows-like portion 3a does not absorb the expansion of the eaves gutters 1a, 1a on both sides and the eaves gutter bending joint 2a is not damaged. On the contrary, when the eaves gutters 1a and 1a on both sides contract in the winter, the contraction of the bellows-like portion 3a causes the contraction to be absorbed. As a result, the eaves trough bending joint 2a is not damaged.

[0015]

[Effect of device]

 Since the eaves trough joint of the present invention has a bellows shape in which a long ridge is formed in the cross section in the bent portion, connecting the eaves trough using this eaves trough joint causes expansion of the eaves trough. -The bellows absorb the contraction. As a result, the eaves gutter bent joint will not be damaged and is safe. In particular, if a bent portion requires an outer corner or an inner corner and a fan-shaped uneven strip is formed on the opposite side to form a bellows shape, the expansion and contraction of this eaves gutter can be easily absorbed. Furthermore, the eaves gutter bending joint is less likely to be damaged, which is reassuring.

[Brief description of drawings]

FIG. 1 shows an embodiment of the eaves trough bending joint of the present invention, and is an explanatory view showing a state in which the eaves trough bending joint is connected to the eaves trough.

FIG. 2 shows another embodiment of the present invention and is an explanatory view showing a state in which eaves gutters are connected by eaves gutter bending joints.

[Explanation of symbols]

 1, 1a eaves gutter 11 ear part 2, 2a eaves gutter bending joint 21 connection piece 22 connection part 23 ear holding part 3, 3a bellows-like part

Claims (2)

[Scope of utility model registration request] 1. An eaves trough joint in which a long piece having a grooved cross section is bent at a predetermined angle, and a long ridge-and-groove line is formed in the cross section in the bent portion to form a bellows shape. Eaves gutter bent joint characterized by. 2. An eaves trough joint in which a long piece having a groove-shaped cross section is bent at a predetermined angle, and the bent portion needs to have an outer or inner corner vicinity and is fanned to the opposite side. An eaves trough bending joint characterized by having a ridge-and-groove shape and a bellows shape.