JP2024020730A - Drainage trap, positioning structure for drainage trap and foreign matter collection device, and bathroom unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage trap that is easy to position when attaching a foreign matter collection device and is easy to clean.

SOLUTION: A drainage trap 1 comprises: an outer edge part 12 that is connected to an upper surface of a trap flange 9; a guide surface part 13 that slopes downward as the guide surface part goes inward from the outer edge part 12; and an inner edge part 14 that extends inward from a lower end of the guide surface part 13. A curvature radius R₁ of a corner 15 between the outer edge part 12 and the guide surface part 13 is from 0.6 to 3.0 mm, and a curvature radius R₂ of a corner 16 between the guide surface part 13 and the inner edge part 14 is from 0.6 to 3.0 mm.

SELECTED DRAWING: Figure 4

COPYRIGHT: (C)2024,JPO&INPIT

Description

TECHNICAL FIELD The present invention relates to a drain trap that is drainage equipment for a bathroom or the like, a structure for positioning the drain trap and a foreign matter collection device, and a bathroom unit.

BACKGROUND ART Conventionally, a hair catcher is attached to and removed from a drain outlet of a drain trap installed in, for example, a bathroom, in order to collect foreign matter such as hair that flows with the drain water. The hair catcher is bowl-shaped and has an annular flange on the upper edge of the side surface. The inner diameter of the drain port substantially matches the flange portion of the hair catcher, and a protrusion is formed on the inner surface of the drain port. Therefore, when the flange is placed on the protrusion, the hair catcher is placed on the drain with the tip of the flange facing the inner surface of the drain and the top surface of the flange flush with the edge of the drain. It is attached.

Since the inner diameter of the drain port differs depending on the product, hair catchers must also be manufactured for each size of the inner diameter of the drain port, which is not only uneconomical but also complicated. If the flange of the hair catcher has a structure that can be placed on the edge of the drain, by setting the outer diameter of the flange to an appropriate size in advance, the hair catcher can be placed on the edge of the drain, regardless of the inner diameter of the drain. A hair catcher can be attached to the. For example, in Patent Document 1 listed below, a step is formed on the upper surface of the edge of the drain port, and a flange portion of a hair catcher is attached to the step. 1 Invention).

Japanese Patent Application Publication No. 2011-231507

However, in the first invention disclosed in the literature, the outer diameter of the flange portion of the hair catcher and the inner diameter of the stepped portion of the drain port are approximately the same, so positioning the hair catcher is not easy. That is, the hair catcher does not fit into the step if it is simply placed around the step; it needs to be placed appropriately on the step. Furthermore, if limescale or the like adheres to the step, it is not easy to clean the step.

The present invention has been proposed in view of these circumstances. An object of the present invention is to provide a drain trap, a positioning structure for the drain trap and the foreign object collecting device, and a bathroom unit that are easy to position when attaching a device for collecting foreign objects and are easy to clean.

In order to achieve the above object, the drain trap according to the present invention has a drain edge to which a foreign body collecting device for collecting foreign substances during drainage is attached and detached, and the upper surface of the drain edge has a an outer edge larger than the outer diameter of the flange formed around the periphery of the instrument; a guide surface that slopes downward as it goes inward from the outer edge; and a guide surface formed at the lower end of the guide surface and the flange. and an inner edge portion on which is placed.

The drainage trap according to the present invention is characterized in that the radius of curvature of the corner between the outer edge portion and the guide surface portion is from 0.6 to 3.0 mm.

The drainage trap according to the present invention is characterized in that the radius of curvature of the corner of the guide surface portion and the inner edge portion is from 0.6 to 3.0 mm.

A positioning structure for a drain trap and a foreign matter collection device according to the present invention includes a foreign matter collection device that collects foreign matter during drainage, and a drain trap having a drain opening edge to which the foreign matter collection device is attached and detached, an outer edge portion whose upper surface of the drain opening edge is larger than an outer diameter of a flange portion formed at the periphery of the foreign matter collecting device; and a guide surface portion that slopes downward as it goes inward from the outer edge portion; and an inner edge portion extending inward from a lower end of the guide surface portion, and the flange portion slides on the guide surface portion and is positioned at the inner edge portion.

The bathroom unit according to the present invention is characterized in that it has a structure for positioning the drain trap and the foreign matter collecting device, or the drain trap and the foreign matter collecting device.

The drain trap according to the present invention has a drain opening edge to which a foreign matter collecting device for collecting foreign matter during drainage is attached and detached, and the upper surface of the drain opening edge is connected to a flange portion formed at the periphery of the foreign matter collecting device. It has an outer edge larger than the outer diameter, a guide surface that slopes downward as it goes inward from the outer edge, and an inner edge that is formed at the lower end of the guide surface and on which the flange is placed. . With this configuration, when the foreign matter collection device is attached to the drain trap, the flange portion of the foreign matter collection device slides on the guide surface and moves toward the inner edge, allowing the foreign matter collection device to be guided to the drain opening edge and attached naturally. It will be done. Therefore, it is easy to position the foreign matter collection device when attaching it to the drain trap. Further, since the guide surface section is inclined, the corner extending from the outer edge section to the guide surface section is gentle, and similarly, the corner extending from the guide surface section to the inner edge section is gentle. Therefore, the cleaning tools can easily reach corners and corners, making cleaning easier.

In the drain trap according to the present invention, the radius of curvature of the corner between the outer edge and the guide surface is 0.6 to 3.0 mm. Therefore, cleaning tools can easily reach the corners and cleaning is easy.

In the drainage trap according to the present invention, the radius of curvature of the corner between the guide surface portion and the inner edge portion is from 0.6 to 3.0 mm. Therefore, the cleaning tools can easily reach the corners and cleaning is easy.

A positioning structure for a drain trap and a foreign matter collection device according to the present invention includes a foreign matter collection device that collects foreign matter during drainage, and a drain trap having a drain opening edge to which the foreign matter collection device is attached/detached. The upper surface of the edge has an outer edge larger than the outer diameter of the flange formed on the periphery of the foreign object collection device, a guide surface that slopes downward as it goes inward from the outer edge, and a lower end of the guide surface. It has an inner edge portion extending inward, and the flange portion slides on the guide surface portion and is positioned at the inner edge portion. Therefore, it has the same effect as the above-mentioned drainage trap.

The bathroom unit according to the present invention has the above-described drain trap and foreign matter collection device, or the positioning structure for the above-described drain trap and foreign matter collection device. Therefore, it has the same effect as the above-mentioned drainage trap.

FIG. 1 is an external perspective view of a drainage trap according to an embodiment of the present invention. FIG. 2 is an external perspective view of a positioning structure for a drain trap and a foreign matter collection device according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of a drain trap according to an embodiment of the invention. FIG. 4 is a cross-sectional view of a positioning structure for a drain trap and a foreign matter collection device according to an embodiment of the present invention. FIG. 5 is an enlarged view of part A in FIG. 4, and is an enlarged cross-sectional view of a positioning structure for a drain trap and a foreign matter collection device according to an embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a drainage trap according to the present invention will be described based on the drawings. 1 and 2 show the external appearance of the drain trap 1 of this embodiment, and FIG. 3 shows a cross section of the drain trap 1. Note that this embodiment includes an embodiment of the positioning structure of the drain trap 1 and the foreign matter collection device 17 according to the present invention, and an embodiment of the bathroom unit according to the present invention.

The drain trap 1 according to the present embodiment is installed in a washing area of a bathroom unit, and as shown in FIG. 1, a foreign matter collection device 17 for collecting foreign matter such as hair that flows with drainage water is attached and detached. The bathroom unit includes a bathtub, a washing area, a wall panel, hot water supply equipment, etc. (all not shown).

As shown in FIGS. 1 to 3, the drain trap 1 has an outer body part 2 and an inner body part 4 housed in the outer body part 2. As shown in FIGS. The outer main body part 2 is tub-shaped, has an open upper end, and has a drainage channel part 3 protruding from the side surface. A thread groove is formed on the inner surface of the open portion. The inner main body part 4 is inserted from the upper end of the outer main body part 2.

The inner main body portion 4 has a substantially cylindrical shape, and has a drain port 5 formed inside. The inner main body part 4 has a detachable part 6 to which a foreign object collection device 17 is attached and detached, and a trap part 10 connected to the lower part of the detachable part 6. The detachable portion 6 has a cylindrical tube portion 7 and an annular trap flange 9 connected to the upper end of the tube portion 7 and extending outward from the periphery. An outer threaded portion 8 is formed on the outer surface of the cylindrical portion 7, and this outer threaded portion 8 is screwed into the threaded structure of the outer main body portion 2. A drain port edge 11 is formed at the edge of the drain port 5 where the cylindrical portion 7 and the trap flange 9 are connected.

The foreign matter collection device 17 is shaped like a circular bowl and has a plurality of holes 18 formed therein. The foreign object collection device 17 includes a hemispherical bottom 19, a side 20 connected to the periphery of the bottom 19, and a flange 23 connected to the upper end of the side 20 and extending outward from the periphery. It has a handle part 24 connected to a part of this flange part 23. The side portion 20 has different diameters on the flange portion 23 side and the bottom portion 19 side, with the flange portion 23 side being an upper side portion 21 with a larger diameter, and the side with the bottom portion 19 being a lower side portion 22 with a smaller diameter. The outer diameter D of the side portion 20 is smaller than the inner diameter of the detachable portion 6 of the drain trap 1 (the inner diameter of the drain port 5). The handle portion 24 extends upward from the tip of the flange portion 23. The user grips the handle part 24 and places the foreign object collection device 17 on the detachable part 6 of the inner main body part 4 to attach it to the drain edge 11 of the detachable part 6.

Here, the drain port edge 11 will be explained in detail based on the drawings. FIG. 4 shows a cross-section of the drain trap 1 with the foreign object collection device 17 installed, and FIG. 5 shows the drain edge 11 enlarged.

As shown in FIGS. 4 and 5, the upper surface of the drain edge 11 is connected to the upper surface of the trap flange 9 and has an outer edge 12 that is flat and slopes downward as it goes inward. , a guide surface portion 13 that is flat and slopes downward as it goes inward from the outer edge portion 12; and an inner edge portion 14 that is flat and extends from the lower end of the guide surface portion 13 inward. have. The guide surface portion 13 has a greater degree of inclination than the outer edge portion 12 and is steeper. The outer edge portion 12 is formed larger than the outer diameter of the flange portion 23 of the foreign object collecting device 17. The corner 15 between the outer edge portion 12 and the guide surface portion 13 is gentle and has a radius of curvature R ₁ of 0.6 to 3.0 mm. The corner 16 between the guide surface portion 13 and the inner edge portion 14 is gentle and has a radius of curvature R ₂ of 0.6 to 3.0 mm. The angle θ of the guide surface portion 13 with respect to the vertical line L perpendicular to the horizontal is 3 degrees or more and 70 degrees or less. Preferably, the angle is 56 degrees or more and 68 degrees or less, more preferably 65 degrees or more and 67 degrees or less, and even more preferably about 66 degrees.

When the foreign matter collection device 17 is attached to the drain trap 1 formed as described above, the flange portion 23 of the foreign matter collection device 17 slides on the guide surface portion 13 toward the inner edge portion 14 and is positioned on the inner edge portion 14. That is, the foreign matter collection device 17 slides on the guide surface portion 13 and is guided to the drain port edge 11 and is naturally attached. Therefore, positioning when attaching the foreign matter collecting device 17 to the drain trap 1 is easy.

Further, since the guide surface portion 13 is inclined, a corner 15 extending from the outer edge portion 12 to the guide surface portion 13 is gentle, and similarly, a corner 16 extending from the guide surface portion 13 to the inner edge portion 14 is gentle. In particular, the corner 15 between the outer edge 12 and the guide surface 13 has a radius of curvature R ₁ of 0.6 to 3.0 mm, and the corner 16 between the guide surface 13 and the inner edge 14 has a radius of curvature R _{2 .} , 0.6 to 3.0 mm, cleaning tools such as sponges and brushes (not shown) can easily reach the corners 15 and 16, making cleaning easy. Note that when the radii of curvature R ₁ and R ₂ are smaller than 0.6 mm, it becomes difficult for cleaning tools to reach, whereas when the radii of curvature R ₁ and R ₂ are larger than 3.0 mm, the guide surface portion becomes difficult to reach. The degree of inclination of the foreign body collecting device 13 becomes excessively gentle, making it difficult to position the foreign object collection device 17. Further, the smaller the angle θ of the guide surface portion 13, the more difficult it becomes for the cleaning tool to reach, and on the other hand, the larger the angle θ, the more difficult it becomes to position the foreign matter collection device 17. If the ranges of R ₁ and R ₂ are appropriate, and the range of the angle θ is appropriate, both ease of cleaning and appropriate positioning of the foreign object collection device 17 are achieved.

In this embodiment, when the flange portion 23 of the foreign object collecting device 17 is placed on the drain opening edge 11, the outer diameter D of the side portion 20 of the foreign object collecting device 17 is larger than that of the detachable portion 6 of the drain trap 1. Since it is formed smaller than the inner diameter (the inner diameter of the drain port 5), the foreign matter collecting device 17 can be attached to the drain trap 1 regardless of the size of the inner diameter of the drain port 5.

In other embodiments of the present invention, the radius of curvature at the corner between the outer edge portion and the guide surface portion and the radius of curvature at the corner between the guide surface portion and the inner edge portion are arbitrary.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the above embodiments. The present invention can be modified in various ways without departing from the scope of the claims.

1 Drainage trap 2 Outer body part 3 Drain channel part 4 Inner body part 5 Drain port 6 Detachable part 7 Cylindrical part 8 External thread part 9 Trap flange 10 Trap part 11 Drain port edge part 12 Outer edge part 13 Guide surface part 14 Inner edge part 15 Corner 16 Corner 17 Foreign object collection device 18 Hole 19 Bottom 20 Side 21 Upper side 22 Lower side 23 Flange 24 Handle D Outer diameter L Vertical line θ Angle

Claims (5)

It has a drain edge where a foreign matter collection device for collecting foreign matter during drainage can be attached and detached,
The upper surface of the drain edge is
an outer edge portion larger than an outer diameter of a flange portion formed at the periphery of the foreign matter collection device;
a guide surface portion that slopes downward as it goes inward from the outer edge portion;
an inner edge portion formed at the lower end of the guide surface portion and on which the flange portion is placed;
A drainage trap characterized by: The radius of curvature of the corner between the outer edge portion and the guide surface portion is from 0.6 to 3.0 mm.
The drain trap according to claim 1, characterized in that: The radius of curvature of the corner of the guide surface portion and the inner edge portion is from 0.6 to 3.0 mm.
The drain trap according to claim 1 or 2, characterized in that: a foreign matter collection device that collects foreign matter during drainage;
a drain trap having a drain opening edge to which the foreign matter collecting device is attached and detached;
The upper surface of the drain edge is
an outer edge portion larger than an outer diameter of a flange portion formed at the periphery of the foreign matter collection device;
a guide surface portion that slopes downward as it goes inward from the outer edge portion;
an inner edge portion extending inward from the lower end of the guide surface portion;
the flange portion slides on the guide surface portion and is positioned at the inner edge portion;
A structure for positioning a drainage trap and a foreign matter collection device. A drain trap and a foreign matter collection device according to claim 1 or claim 2, or
It has a positioning structure for a drain trap and a foreign matter collection device according to claim 4,
A bathroom unit characterized by:

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