JPS6117989B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION According to the present invention, at least one fitting recess is formed in the inner peripheral surface of the short cylinder, and the spring is fitted into the fitting recess, so that the plurality of short cylinders are connected to the outer circumference of the spring. This is a rigid gutter made by fitting and fixing the ends of short cylinders into each other so that they can slide freely.The construction length can be adjusted by expanding and contracting against the elasticity of the spring. Since the ends of the body are slidably fitted into each other, rainwater does not splash out, and moreover, the rainwater flows smoothly down along the helical trajectory of the spring.

Hereinafter, the present invention will be explained based on the drawings.

The hard gutter shown in FIG. 1 is an embodiment of the present invention, in which a plurality of large-diameter short cylinders b ₁ and small-diameter short cylinders b ₂ made of synthetic resin are alternately fitted around the outer periphery of a spring a. A fitting recess 1 protruding from the inner peripheral surface of the spring a is fitted and fixed, and the end of the small diameter short cylindrical body b ₂ is connected to the large diameter short cylindrical body b _{1 .}
It is slidably inserted and fitted into the end of the. For example, as shown in FIG. 2, the downpipe is constructed by fitting a large-diameter short cylinder b ₁ at the upper end into the falling pipe 3 of the water collector 2, and pushing the large-diameter short cylinder b 1 at the lower end against the elasticity of the spring a. By pushing up b ₁ and shortening it, the large-diameter short cylindrical body b ₁ at the lower end can be fitted and fixed to the drain pipe 4 protruding from the ground surface by the elastic restoring force of the spring a. When adjusting the construction length in this way, the end of the large-diameter short cylinder b ₁ and the end of the small-diameter short cylinder b ₂ slide against each other, but both short cylinders b Since both are fixed to the spring a in the fitting recess 1,
The ends that are fitted together will not come apart until a certain limit of extension is reached, and because the ends are fitted together in this way, there is a risk that rainwater may splash outward. It's something that doesn't exist. Moreover, the rainwater flows through each short cylinder b along the spiral trajectory of the spring a.
It flows smoothly down the inside. The vertical gutter shown in FIG. 3 is also an embodiment of the present invention, and in this vertical gutter, the short cylindrical body b is formed of an upper large diameter part 5 and a lower small diameter part 6, and the small diameter part 6 is Since they are inserted into the large diameter portion 5 and are slidably fitted to each other, rainwater will not leak out from the fitting portion. Further, in this embodiment, the small diameter portion 6 of the short cylindrical body b
Since a pair of vertically opposing locking recesses 7 are provided on the inner circumferential surface of the spring a, the spring a can be easily fixed by sandwiching the spring a between the locking recesses 7. Locking recess 7
It is securely fixed because it engages with the

The locking recess 7 is a fitting recess, and it is sufficient that there is at least one fitting recess.

Note that the downpipe of the present invention may be used in an extended or shortened state during construction, but it is preferable to shorten it during transportation.
It is sufficient to form the spring so that the state where no external force is applied to it is the shortest limit.

As described above, in the vertical gutter of the present invention, at least one fitting recess is formed in the inner peripheral surface of the short cylinder, and the spring is fitted into the fitting recess, so that the plurality of short cylinders are connected to the outer circumference of the spring. The ends of the short cylinders are slidably fitted into each other, so the construction length can be adjusted by expanding and contracting against the elasticity of the spring. Rainwater does not splash out, and moreover, rainwater flows smoothly down each short cylindrical body along the spiral trajectory of the spring.

[Brief explanation of the drawing]

1 and 3 are partially cutaway perspective views showing different embodiments of the downpipe of the present invention, and FIG. 2 is an explanatory diagram illustrating a construction method of the embodiment shown in FIG. 1. In the figure, a is a spring, b, b ₁ and b ₂ are short cylinders, 1 is a fitting recess, 2 is a water collector, 3 is a water drop tube,
4 is a drain pipe, 5 is a large diameter portion, 6 is a small diameter portion, and 7 is a locking recess.

Claims (1)

[Claims] 1. Forming at least one fitting recess on the inner peripheral surface of the short cylinder, fitting the spring into the fitting recess, and fitting and fixing the plurality of short cylinders to the outer periphery of the spring;
A vertical gutter made of short cylindrical bodies whose ends are slidably fitted together.