JP6179856B2 - Drain hose and drain using the hose - Google Patents

Description

  The present invention relates to, for example, a drain hose used for drainage drainage such as rainwater collected on the rooftop of a building, and a drain using the drain hose.

  Conventionally, drainage drainage is provided in a piping passage of a building, and drainage hose is drained from the drain into a piping passage to drain rainwater and the like accumulated on the rooftop of the building (see, for example, Patent Document 1). ). This drain is composed of a drain sheet made of lead having an opening in the central portion, and a drain hose connected to the opening and extending to a piping passage in the building. Since the piping extends in a bent state in the building, a flexible hose is generally used for the drain hose. As a conventional drain hose, a hard wire spiral reinforced hose is used in which a hard gland-like member is spirally wound around a thin cylindrical hose outer periphery at a constant interval, and the entire hose is configured in a bellows shape. With this bellows structure, the conventional drain hose is easily bent with respect to the axial direction.

JP 2010-209611 A

  Since the drain hose having the bellows structure described above is freely bent with respect to the axial direction, it can follow a bent pipe passage. However, since the diameter of the pipe passage varies, when using a drainage hose having a conventional bellows structure, in order to match the diameter of the pipe passage, for example, drains with various diameters ranging from 10 to 40φ are available. There is a problem that a hose is necessary and, therefore, the production of the hose is laborious and costly.

  Furthermore, most of the conventional drain sheets constituting the drain use lead as a material in consideration of workability, but there is also a problem that the use of lead adversely affects the surrounding environment.

  In order to solve the above-mentioned problems, the drain hose of the present invention is made of a flexible material, and the radial cross section has a corrugated shape. It is used. In a preferred embodiment of the drain hose of the present invention, the flexible material is made of a vinyl chloride material. Furthermore, it is preferable that the tip of the hose to be inserted into the pipe passage is cut obliquely with respect to the axial direction.

  The drain of the present invention is made of a flexible material that can be attached to the drain hose mounting part, a drain hose mounting part provided around the opening, a drain sheet that defines an opening in the center, and has a radial cross section. A corrugated drain hose. The drain hose attachment portion includes a tapered portion in which an opening peripheral end provided in the drain sheet is projected in a direction orthogonal to the drain sheet surface. In one embodiment, the drain sheet mounting portion is formed of a ring-shaped member, and an appropriate number of notches are provided in the tapered portion, and the notches are floated from the tapered portion (support portion), and the notched portion and the tapered portion are provided. A gap is formed between the drain hose and the end of the drain hose. Further, in a more preferred embodiment, a pyramid-shaped cut-and-raised portion is provided in the vicinity of the center of the notch portion, and the end of the drain hose is attached to the gap between the notch portion and the taper portion (support portion). After that, the drain hose can be easily attached to the opening by pressing and raising the cut and raised against the end of the drain hose. In a preferred embodiment, the drain sheet and the drain hose attachment part are made of heat-treated pure aluminum.

  In addition, a drain hose can be easily attached to a drain hose attachment part by using a frustoconical jig.

  Since the drain hose of the present invention is made of a vertical flexible tube that is formed of a flexible material, has a corrugated cross section in the radial direction, and is configured to bend freely with respect to the axial direction, a piping passage in which a drain is provided It is possible to use drain hoses of the same standard regardless of the size of the diameter. Therefore, it is not necessary to prepare drain hoses with different diameters according to the diameter of the piping passage, and labor for manufacturing and using (attaching) the drain hose can be saved. In addition, by cutting the drain hose tip obliquely with respect to the axial direction, it becomes very easy to insert the drain hose into the piping passage.

  In the preferred embodiment of the drain of the present invention, the drain sheet and the drain hose mounting portion are made of pure aluminum material, so that the weight of the drain can be reduced and the environment in using the drain can be reduced. Can solve problems such as adversely affecting

  Further, in one embodiment, an appropriate number of notches are provided in the tapered portion of the drain hose attachment portion (ring), and the notch is floated from the tapered portion (support portion) to provide a gap, and the drain hose is attached thereto. In addition, a structure in which a triangular cut and raised portion is provided in the vicinity of the center of the cutout portion is provided, whereby the drain hose can be easily attached to the opening portion.

FIGS. 1A and 1B are diagrams each showing an example of the drain hose of the present invention. FIG. 2 is a diagram showing the configuration of the drain of the present invention. 3 (a) and 3 (b) are diagrams showing the configuration of the drain hose attachment portion of the present invention. FIG. 4 is a view showing a configuration of a jig used for attaching the drain hose of the invention.

  Embodiments of the present invention will be described with reference to the drawings.

  1 (a) and 1 (b) are views showing the structure of an example of the drain hose of the present invention, FIG. 1 (a) is a side view of the drain hose, and FIG. 1 (b) is FIG. 1 (a). It is sectional drawing along the AA line of the drain hose shown. As shown to Fig.1 (a) and (b), as for the drain hose 1 of this invention, the radial cross section is a waveform. The drain hose 1 is made of a flexible material such as vinyl chloride, and the hose 1 itself is freely bent in the axial direction.

  Any material can be used for the drain hose 1 as long as it is a flexible material, but it is preferable to use vinyl chloride from the viewpoint of processability, durability, and cost. In addition, in FIG. 1, although the hose cross section forms the outer periphery of a hose with the waveform which has 12 waveform cycles, the number of this waveform cycles can be changed suitably. Due to the flexibility of the vinyl chloride material, the diameter of the hose is about 125 mm at the maximum. When the corrugation is reduced and the diameter is reduced, the outer diameter of the hose can be reduced to about 22 mm.

  Thus, the vertical hook flexible drain hose 1 of the present invention is made of a flexible material, the radial cross section 1a is corrugated, and the hook is provided in the vertical direction of the hose. The hose diameter of the attachment end can be freely changed by expanding the portion in the radial direction or by narrowing the portion toward the center. Therefore, it is not necessary to prepare a hose suitable for each pipe diameter for each pipe passage having a different diameter. Moreover, since the drain hose 1 is freely bent in the axial direction, it can be smoothly passed through the pipe.

  FIG. 2 is a diagram showing the configuration of the drain 11 of the present invention. The horizontal drain 11 includes a drain sheet 12, a drain hose 1, and a drain hose attachment portion 14. In the example shown in FIG. 2, the drain sheet 12 is formed in an L shape so as to follow the wall of the building, and an opening 13 that matches the diameter of the drain port 20 is formed in the sheet 12. The drain hose 1 is attached to the drain hose attachment portion 14 provided on the drain sheet and inserted into the drain outlet. In addition, as shown in FIG. 2, the hose can be easily inserted into the drain port by cutting the tip 1b of the drain hose 1 obliquely with respect to the hose axial direction.

  The drain sheet 12 is preferably made of flexible pure aluminum. By performing heat treatment of flexible pure aluminum at a temperature of 350 ° C. to 600 ° C. for about 1 to 6 hours, for example, it is possible to work with a softness equivalent to that of a conventional lead drain sheet. The overall weight can be reduced compared to the drain sheet, and adverse effects on the surrounding environment can be prevented. In addition, you may comprise the ring-shaped member which comprises the drain hose attachment part mentioned later with stainless steel etc.

  FIG. 3 is a view showing a configuration of an example of a drain hose attachment portion 14 (ring-shaped member) formed on the drain sheet 12, FIG. 3a is a plan view, and FIG. 3b is a view of the cutout portion 41 seen from the side. is there. As shown in FIG. 3 a, the drain hose attachment portion 14 is made of a ring-shaped member 14, and an opening 13 corresponding to the drainage port 20 is defined, and is tapered in a direction orthogonal to the opening 13 as a whole. I am doing. A claw 41 is provided at the periphery of the opening 13 by cutting out 10 places. The claw 41 is floated in a direction perpendicular to the opening 13 as shown in FIG. ) 14a is formed between the gaps 14a. The support portion 14a between the claws 41 extends in an oblique direction from the surface of the drain sheet 12 and forms a taper shape as a whole. The claw 41 extends obliquely at an angle larger than the support portion 14a, and is configured to sandwich the end 1a of the drain hose 1 in a gap 51 formed between the claw 41 and the support portion 14a. ing. Each claw 41 is further provided with a triangular needle-like cut and raised 41a. In this example, the claws 41 are provided at ten locations, but this number can be changed as appropriate.

  The end 1a of the drain hose 1 is widened in the gap 51 of the drain hose attachment portion (ring-shaped member) 14 thus configured so that the corrugations provided on the side surfaces of the hose 1 are substantially uniform. Is inserted, and the claw 41 is caulked to the drain hose 1 using an appropriate tool, and the drain hose 1 is attached to the opening of the drain hose attachment portion 14. In addition, when attaching the drain hose 1, it can attach easily by using the taper-shaped jig | tool 31 as shown in FIG.

  In the above-described embodiment, the horizontal drain has been described as an example, but the present invention can also be applied to a vertical drain.

  According to the drain hose of the present invention and the drain using this drain hose, it is possible to cope with one type of drain hose regardless of the diameter of the drain port, and avoid the complexity of installing the drain hose. can do.

1 Drain hose 1a Drain hose end 11 Drain 12 Drain sheet 13 Opening 14 Drain hose mounting part 14a Support part 20 Drain port 31 Jig 41 Claw 41a Cut and raise

Claims (5)

Provided with a drain sheet, a drain hose mounting portion provided on the drain sheet, defining an opening corresponding to the drain port, and a drain hose attached to the drain hose mounting portion;
The drain hose has a corrugated radial cross section and a vertical side surface, and is composed of a flexible material that bends freely in the axial direction .
The drain hose mounting portion has a tapered portion oriented in a direction orthogonal to the drain sheet around the opening defined in the drain hose mounting portion, and provided with notches at a plurality of locations of the tapered portion. A drain characterized by forming a gap between the taper portion and the notch. In the drain of claim 1, drain, wherein the flexible material is vinyl chloride. In the drain of claim 1 or 2, drain, characterized in that one end of the hose is cut at an angle to the axial direction. The drain according to any one of claims 1 to 3 , wherein the drain sheet and the drain hose attachment portion are formed of a heat-treated pure aluminum material. The drain according to any one of claims 1 to 4 , wherein the cutout is further provided in the notch.

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