US-12624539-B2 - Wall-mounted flush toilet

US12624539B2US 12624539 B2US12624539 B2US 12624539B2US-12624539-B2

Abstract

A wall-mounted flush toilet includes a toilet main body fixed to a wall; and an illuminating device attached to the toilet main body, the illuminating device being configured to emit light to a floor surface, wherein the toilet main body includes a bowl, a discharge trap having an inlet connected below the bowl to discharge waste in the bowl, a skirt configured to cover sides of each of the bowl and the discharge trap, and a rear wall part formed behind the skirt and fixed to the wall, the toilet main body being disposed above a floor surface, and the illuminating device is provided within an internal space provided behind the lowermost end of the discharge trap and above a lower end of the skirt.

Inventors

Yuuki SHINOHARA
Hiroshi Hashimoto
Yuya MIYAKE

Assignees

TOTO LTD.

Dates

Publication Date: 20260512
Application Date: 20240122
Priority Date: 20230228

Claims (16)

1 . A wall-mounted flush toilet comprising: a toilet main body fixed to a wall and disposed above a floor surface; and an illuminating device attached to the toilet main body, the illuminating device being configured to emit light to the floor surface, wherein the toilet main body includes a bowl configured to receive waste, a discharge trap having an inlet connected below the bowl to discharge waste in the bowl, a skirt configured to cover sides of the bowl and the discharge trap, and a rear wall part formed behind the skirt and fixed to the wall, and wherein the discharge trap includes a bent conduit and a descending conduit, the bent conduit being descending to a lowermost end below and behind the inlet and then ascending rearward to a top portion, and the descending conduit being descending rearward from the top portion, and the illuminating device is provided within an internal space provided behind the lowermost end of the discharge trap and above a lower end of the skirt, the illuminating device being fixed to the toilet main body within the internal space of the toilet main body.
2 . The wall-mounted flush toilet according to claim 1 , wherein the illuminating device is provided within the internal space behind the ascending bent conduit of the discharge trap and below the descending conduit.
3 . The wall-mounted flush toilet according to claim 1 , wherein the illuminating device is disposed so that the center of light of a maximum illuminance to be emitted is located in front of the rear wall part.
4 . The wall-mounted flush toilet according to claim 1 , wherein the illuminating device is disposed so that the emitted light is emitted forward of the lowermost end without overlapping the lowermost end of the discharge trap.
5 . The wall-mounted flush toilet according to claim 4 , wherein the illuminating device is disposed so that the center of light of a maximum illuminance to be emitted is located behind the lowermost end of the discharge trap.
6 . The wall-mounted flush toilet according to claim 4 , wherein the toilet main body includes a wall surface defining the internal space provided with the illuminating device, and a surface of at least a part of the wall surface is coated with glaze.
7 . The wall-mounted flush toilet according to claim 4 , wherein the illuminating device comprises: a fixing part fixed to the toilet or a cabinet behind the toilet, a light emitter including a light source attached to the fixing part and emitting light, and a translucent cover formed of a translucent material and covering the light emitter, wherein the translucent cover in a state of being fixed to the toilet or the cabinet with the fixing part is composed of a single member having an exposed surface portion formed integrally without any cut.
8 . The wall-mounted flush toilet according to claim 7 , further comprising a fixing member configured to fix the light source within the translucent cover, wherein the fixing member is provided to shield the light source from above so that light emitted from the light source does not diffuse upward.
9 . The wall-mounted flush toilet according to claim 8 , further comprising a light shield disposed below the light source, wherein the light shield includes an opening formed to allow light emitted from the light source to transmit and penetrate the opening.
10 . The wall-mounted flush toilet according to claim 9 , further comprising an auxiliary light shielding member provided between the fixing member and the translucent cover.
11 . The wall-mounted flush toilet according to claim 7 , wherein the translucent cover has an irradiation surface formed almost flat.
12 . The wall-mounted flush toilet according to claim 9 , wherein the illuminating device includes an illuminating device main body provided within the flush toilet or within a cabinet or wall surface behind the flush toilet, and wherein the illuminating device main body is disposed behind a front end of the toilet main body and a part of the toilet main body is configured to form a shadow for guiding a user to the floor surface by blocking light emitted from the illuminating device main body.
13 . The wall-mounted flush toilet according to claim 12 , wherein the illuminating device main body is disposed below and behind the toilet main body and is configured to form a shadow for guiding the user to the floor surface in front of the toilet main body.
14 . The wall-mounted flush toilet according to claim 13 , wherein the illuminating device main body is disposed in a central portion of the toilet main body in a left-right width direction and is configured to form a shadow that expands a width in a left-right direction as being away from the toilet main body.
15 . The wall-mounted flush toilet according to claim 13 , wherein the illuminating device main body is disposed behind the lowermost end of the discharge trap and configured so that light emitted from the illuminating device main body is blocked by the discharge trap to form a shadow.
16 . The wall-mounted flush toilet according to claim 12 , further comprising a human body detection sensor that detects a position of the user and a controller that controls the illuminating device main body, wherein the controller changes the light emitted from the illuminating device main body based on a signal obtained from the human body detection sensor.

Description

This application claims benefit of priorities to Japanese Patent Application No. 2023-029899, filed on Feb. 28, 2023, Japanese Patent Application No. 2023-029901, filed on Feb. 28, 2023, and Japanese Patent Application No. 2023-029902, filed on Feb. 28, 2023, each entire content of which is incorporated herein by reference. BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a flush toilet, particularly to a wall-mounted flush toilet fixed to a wall. Description of the Related Art Conventionally, as a flush toilet fixed to a wall (so-called “wall-mounted flush toilet”), for example, a flush toilet including a toilet main body provided with an illuminating device is known as described in Patent Literature 1 (Japanese Patent Laid-Open No. 2021-147889). In such a conventional wall-mounted flush toilet as described in Patent Literature 1, the illuminating device is provided forward of a lower surface of the toilet main body as well as a lowermost end of a discharge trap, and an irradiation range of a light source of the illuminating device extends forward and left and right from the toilet main body in planar view. In the conventional wall-mounted flush toilet described above, however, there is a problem that a floor surface region directly under the toilet main body and behind the lowermost end of the discharge trap cannot be irradiated, as the illuminating device is provided forward of the lower surface of the toilet main body and the lowermost end of the discharge trap. The present invention has been made to solve the conventional problems described above, and an object thereof is therefore to provide a wall-mounted flush toilet capable of irradiating a predetermined floor surface region directly under a toilet main body or behind a lowermost end of a discharge trap with light emitted from an illuminating device. SUMMARY OF THE INVENTION In order to solve the problems described above, the present invention provides a wall-mounted flush toilet comprising: a toilet main body fixed to a wall and disposed above a floor surface; and an illuminating device attached to the toilet main body, the illuminating device being configured to emit light to the floor surface, wherein the toilet main body includes a bowl configured to receive waste, a discharge trap having an inlet connected below the bowl to discharge waste in the bowl, a skirt configured to cover sides of each of the bowl and the discharge trap, and a rear wall part formed behind the skirt and fixed to the wall, and wherein the discharge trap includes a bent conduit and a descending conduit, the bent conduit being descending to a lowermost end below and behind the inlet and then ascending rearward to a top portion, and the descending conduit being descending rearward from the top portion, and the illuminating device is provided within an internal space provided behind the lowermost end of the discharge trap and above a lower end of the skirt. In the present invention including this configuration, since the illuminating device fixed to the toilet main body and emitting light to the floor surface is provided within the internal space behind the lowermost end of the discharge trap of the toilet main body and above the lower end of the skirt, the illuminating device can be hidden from user's view within the toilet main body, and designability of appearance of the flush toilet can be enhanced. Additionally, when light is emitted toward the floor surface from the illuminating device provided in the internal space disposed above the floor surface, the light is not blocked and is emitted to a predetermined floor surface region directly under the toilet main body and behind the lowermost end of the discharge trap, and this predetermined floor surface region can be made brightest. Furthermore, since the light emitted to the predetermined floor surface region can spread in a gradation pattern from the center of the irradiation region, the appearance of the flush toilet as seen from the user and aesthetics of its surroundings can be enhanced. In the present invention, preferably, the illuminating device is provided within the internal space behind the ascending bent conduit of the discharge trap and below the descending conduit. In the present invention including this configuration, since the illuminating device is provided within the internal space behind the ascending bent conduit of the discharge trap and below the descending conduit, the illuminating device can clearly emit light from behind the ascending bent conduit of the discharge trap and from below the descending conduit to the predetermined floor surface region directly under the toilet main body. Therefore, gradation of light emitted from the illuminating device to the predetermined floor surface region can be made clear. In the present invention, preferably, the illuminating device is disposed so that the center of light of a maximum illuminance to be emitted is located in f