Luminaire and a wall-hung type water closet equipped with the same

Abstract

To provide a luminaire having good cleanability that can irradiate a floor surface below a toilet bowl.SOLUTION: A luminaire 14 of the present invention for irradiating a floor surface F below a toilet bowl body 2 comprises: a stationary part 30a fixed to the toilet bowl body 2 or a cabinet behind the toilet bowl body; a light emitting part 34 including a light source 34a attached to the stationary part and emitting light L; and a light-transmissive cover 40 formed of a light-transmissive material and covering the light emitting part, wherein the light-transmissive cover is formed of a single member having a surface portion exposed in an integrally formed manner without any break when fixed to a toilet bowl or the cabinet by the stationary part.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a lighting device and a wall-mounted water-washing toilet equipped with the same, and particularly to a lighting device for irradiating the floor surface below the toilet and a wall-mounted water-washing toilet equipped with the same.

Background Art

[0002] Conventionally, as a lighting device for irradiating the floor surface below the toilet, there are those attached to a part of the toilet body of a wall-mounted water-washing toilet (see, for example, Patent Documents 1 and 2), and those attached to a cabinet behind the toilet body of a wall-mounted water-washing toilet (see, for example, Patent Document 3). In the conventional lighting devices described in these Patent Documents 1-3, they are provided below the toilet body where it is difficult for the user to access, or below the cabinet behind the toilet body, and are composed of a plurality of parts.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Patent Document 3

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the conventional lighting devices described in Patent Documents 1-3 mentioned above, since there are gaps between the plurality of parts, when dirt enters such gaps, it is difficult to remove the dirt, resulting in a problem of reduced cleanability. Therefore, how to improve the cleanability of the lighting device provided in the toilet or the cabinet behind it has also become an issue that has been demanded in recent years.

[0005] Therefore, the present invention has been made to solve the above-described problems of the prior art and the problems required in recent years, and an object thereof is to provide an illumination device capable of irradiating the floor surface below the toilet bowl and having good cleanability, and a wall-mounted flushing toilet bowl equipped with the same.

Means for Solving the Problems

[0006] In order to solve the above-described problems, the present invention provides an illumination device for irradiating the floor surface below the toilet bowl, which includes a fixing portion fixed to the toilet bowl or a cabinet behind the toilet bowl, a light emitting portion including a light source attached to the fixing portion and emitting light, and a translucent cover formed of a translucent material and covering the light emitting portion. The translucent cover is characterized in that, in a state where it is fixed to the toilet bowl or the cabinet by the fixing portion, its exposed surface portion is formed of a single member integrally formed without a break. In the present invention configured as described above, the light emitted from the light source of the light emitting portion passes through the translucent cover covering the light emitting portion and is irradiated onto the floor surface below the toilet bowl, so that the space and the floor surface below the toilet bowl can be brightly illuminated. Further, with respect to the translucent cover in a state where it is fixed to the toilet bowl or the cabinet by the fixing portion, since its exposed surface portion is formed of a single member integrally formed without a break, the risk of dirt entering the break of the surface portion of the translucent cover can be eliminated. Furthermore, even if dirt adheres to the surface portion of the translucent cover, since the translucent cover is formed of a single member integrally formed without a break, it is easy to wipe the surface portion, etc., so that the cleanability can be improved.

[0007] In the present invention, preferably, further, there is a fixing member for fixing the light source in the translucent cover, and this fixing member is provided so as to shield the upper part of the light source so that the light emitted from the light source does not diffuse upward. In the present invention configured as described above, a fixing member for fixing the light source of the light emitting unit is provided so as to shield the upper part of the light source so that the light emitted from the light source does not diffuse upward within the translucent cover. As a result, this fixing member can prevent the light emitted from the light source of the light emitting unit from diffusing upward, and can reduce the generation of unnecessary reflected light and shadows. On the other hand, it can surely diffuse light onto the floor surface below the toilet bowl.

[0008] In the present invention, preferably, further, a light shielding portion is disposed below the light source, and an opening through which the light emitted from the light source can pass through is formed in the light shielding portion. In the present invention configured as described above, regarding the light shielding portion disposed below the light source of the light emitting unit, since an opening through which the light emitted from the light source can pass through is formed, when the light emitted from the light source of the light emitting unit passes through the opening of the light shielding portion and irradiates the floor surface below the toilet bowl, the brightness of the light passing through the opening can be adjusted, and the directivity of the light can be enhanced by passing the light through the opening of the light shielding portion.

[0009] In the present invention, preferably, further, a light shielding auxiliary member is provided between the fixing member and the translucent cover. In the present invention configured as described above, the light shielding auxiliary member provided between the fixing member and the translucent cover can eliminate the gap between the fixing member and the translucent cover. Therefore, it is possible to suppress the light emitted from the light source of the light emitting unit from irradiating the floor surface below the toilet bowl from other than the opening of the light shielding portion.

[0010] In the present invention, preferably, the irradiation side surface of the translucent cover is formed to be substantially flat. In the present invention configured as described above, since the irradiation side surface of the translucent cover is formed to be substantially flat, when the light emitted from the light source of the light emitting unit passes through the irradiation side surface of the translucent cover and irradiates the floor surface below the toilet bowl, the spot feeling of the light condensed in a specific region of the floor surface can be enhanced.

[0011] Further, the present invention is a wall-mounted flushing toilet equipped with the above lighting device. In the present invention configured as described above, it is possible to provide a wall-mounted flushing toilet equipped with a lighting device that can brightly illuminate the space below the toilet and the floor surface and improve the cleanability.

Effect of the Invention

[0012] According to the lighting device of the present invention and the wall-mounted flushing toilet equipped with the same, the floor surface below the toilet can be irradiated, and the cleanability is good.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Embodiment for Carrying Out the Invention

[0014] Hereinafter, with reference to FIGS. 1 to 10, a wall-mounted flushing toilet according to an embodiment of the present invention will be described. First, FIGS. 1 and 2 respectively show an exploded perspective view and a central side cross-sectional view showing a state where a wall-mounted flushing toilet according to an embodiment of the present invention is fixed to a wall. As shown in FIGS. 1 and 2, in a wall-mounted flushing toilet 1 according to an embodiment of the present invention, the rear end portion (rear wall portion 2a) of the toilet body 2 is fixed to the back wall W in the toilet room T, and the lower end portion of the toilet body 2 is arranged to be spaced upward from the floor surface F. Also, as shown in FIG. 1, more specifically, the wall-mounted flushing toilet 1 of the present embodiment has a structure in which the toilet body 2 is fixed from the back side of the wall by a fixing unit U provided on the back side (inside the wall) of the wall W. Furthermore, on the fixing unit U side, a cleaning water supply device 4 which is a water supply source for supplying cleaning water to the toilet body 2 of the wall-mounted flushing toilet 1, a cleaning operation device 6 for operating the cleaning water supply device 4, etc. are provided, and these devices 4, 6 are structured to be hidden on the back side of the wall W. In the flushing toilet 1 of the present embodiment, as a cleaning water supply device 4 which is a water supply source for supplying cleaning water to the toilet body 2, a so-called "gravity-fed" water storage tank 4a that supplies the cleaning water stored in the water storage tank 4a to the toilet body 2 by the action of gravity is described. However, as another form of water supply source, a so-called "mains direct pressure type" water supply device that directly supplies cleaning water to the toilet body 2 by utilizing the water supply pressure from the water supply may be adopted. In addition, a "flush valve type" water supply device, a "pump type" water supply device that supplies cleaning water by utilizing the pressure boosting of a pump for the cleaning water stored in the water storage tank, etc. may be adopted.

[0015] Next, as shown in FIGS. 1 and 2, the toilet bowl body 2 of the flushing toilet 1 of the present embodiment is a ceramic toilet bowl body 2 formed of ceramics. Further, this ceramic toilet bowl body 2 includes a bowl portion 8 for receiving dirt, and a drain trap portion 10 having an inlet portion 10a connected below the bowl portion 8 for discharging the dirt in the bowl portion 8. Furthermore, the ceramic toilet bowl body 2 includes a skirt portion 12 that laterally covers the outer contours of the bowl portion 8 and the drain trap portion 10, and a rear end portion (rear wall portion 2a) formed behind the skirt portion 12 and fixed to the wall W. Here, as shown in FIG. 2, the drain trap portion 10 of the toilet bowl body 2 forms a bent pipe line 10d that descends to the lowermost end portion 10b behind and below the inlet portion 10a and then ascends to the top portion 10c behind and above it, and forms a descending pipe line 10e that descends from the top portion 10c of the bent pipe line 10d behind and below.

[0016] FIG. 3 is a bottom view of a wall-mounted flushing toilet according to an embodiment of the present invention. As shown in FIGS. 2 and 3, an illumination device 14, the details of which will be described later, is provided in the internal space S of the toilet bowl body 2 behind the lowermost end portion 10b of the drain trap portion 10 and above the lower end 12a of the skirt portion 12. This illumination device 14 is fixed to the rear wall portion 2a of the toilet bowl body 2 and is capable of irradiating light onto the floor surface F below the toilet bowl body 2.

[0017] Next, FIG. 4 is a rear view of a wall-mounted flushing toilet according to an embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line V-V of FIG. 3. As shown in FIGS. 1, 2, 4, and 5, in the toilet bowl body 2 in a state where the ceramic toilet bowl body 2 is fixed to the wall W by the fixing unit U, an inlet portion 16a, which is the upstream end (rear end) of the main water conduit 16 formed on the upstream side of the bowl portion 8, is connected to a water supply pipe 18 extending downstream from the water storage tank 4a of the washing water supply device 4. On one hand, in the toilet bowl body 2 made of pottery fixed to the wall W by the fixing unit U, the outlet portion 10f, which is the downstream end (rear end) of the drainage trap portion 10, is connected to a drain pipe 20 that extends upward from the floor surface F on the back side of the wall W and then bends forward and extends. Here, for the wall-mounted flushing toilet 1 of the present embodiment, it may be a so-called "washing-down type" flushing toilet that washes off the dirt in the bowl portion 8 due to the height difference in the vertical direction of the bowl portion 8 in the toilet bowl body 2, or it may be in the form of other flushing toilets, such as a so-called "siphon type" flushing toilet that utilizes the siphon effect to suck in the dirt in the bowl portion 8 and discharge it from the drainage trap portion 10 to the outside.

[0018] Next, with reference to FIGS. 2 to 9, the details of the lighting device 14 of the wall-mounted flushing toilet 1 according to the present embodiment will be described. FIG. 6 is a perspective view of the lighting device 14 of the wall-mounted flushing toilet 1 according to the present embodiment as viewed obliquely from below. FIG. 7 is an exploded perspective view of the lighting device 14 of the wall-mounted flushing toilet 1 according to the present embodiment. Further, FIG. 8 is a central side cross-sectional view of the lighting device 14 in a state fixed to the toilet bowl body 2 of the wall-mounted flushing toilet 1 according to the present embodiment. FIG. 9 is a schematic central side cross-sectional view of the wall-mounted flushing toilet 1 according to an embodiment of the present invention, showing a state where the lighting device 14 irradiates light on the floor surface F.

[0019] First, as shown in FIGS. 2, 3, 5, 6, 8, and 9, the lighting device 14 is provided in the internal space S of the toilet bowl body 2 below the descending pipe 10e of the drainage trap portion 10 of the toilet bowl body 2. Here, in FIG. 9, the predetermined floor surface area irradiated with the entire light L irradiated from the lighting device 14 is defined as the "irradiation area A". The outer shape of the irradiation area A in plan view is substantially circular and is the diffusion range A of the light L irradiated on the floor surface F. Also, the light irradiated to the center O1 of this irradiation area A (diffusion range A) is defined as the "light L1 at the center O1 of the diffusion range A". Furthermore, among the entire light L irradiated from the lighting device 14 to the irradiation area A (diffusion range A) of the floor surface F shown in FIG. 9, the light L with the maximum illuminance is defined as "the light L2 with the maximum illuminance", and the point O2 within the irradiation area A irradiated with this light L2 with the maximum illuminance is defined as "the center O2 of the light L". Next, as shown in FIG. 9, the lighting device 14 is arranged such that the center O2 of the light L2 with the maximum illuminance to be irradiated is positioned in front of the rear wall portion 2a of the toilet body 2. Also, as shown in FIG. 9, the lighting device 14 is arranged such that the light L3 irradiated to the most forward side does not overlap with the lowermost end portion 10b of the drain trap portion 10 of the toilet body 2 and is irradiated in front of this lowermost end portion 10b. Furthermore, as shown in FIG. 9, the lighting device 14 is arranged such that the center O2 of the light L2 with the maximum illuminance to be irradiated is positioned behind the lowermost end portion 10b of the drain trap portion 10 of the toilet body 2. Also, as shown in FIGS. 3, 5, 6, 8, and 9, the toilet body 2 is provided with a wall surface S1 that forms the internal space S where the lighting device 14 is installed, and a glaze G is applied to at least a part of the surface of this wall surface S1.

[0020] Next, as shown in FIGS. 3 to 9, although details such as the configuration and internal structure of each part of the lighting device 14 will be described later, it is fixed to the front side of the rear wall portion 2a of the toilet body 2. Also, regarding the fixing of the lighting device 14 to the rear wall portion 2a of the toilet body 2, it is fixed by a pair of fastening members (tapping screws 22, 22, washers 24, 24) from the rear side of the rear wall portion 2a.

[0021] Next, with reference to FIGS. 5 to 8, details of the configuration and internal structure of each part of the lighting device 14 will be described. First, as shown in FIGS. 6 to 8, each component of the lighting device 14 includes, from the rear side to the front side, a pair of tapping screws 22, 22, a pair of washers 24, 24, a ceramic-side water stop packing 26, a plurality (four) of main body fixing screws 28, 28, 28, 28, a housing 30, a power supply harness 32, an LED substrate 34, a plurality (two) of substrate fixing screws 36, 36, a main body-side water stop packing 38, and a light-transmissive cover 40. The housing 30 is entirely made of a light-shielding material (a material that is difficult to transmit light), and a fixing portion 30a provided on the rear side thereof is fixed from the rear side by a pair of fastening members (tapping screws 22, 22 and washers 24, 24). As a result, the fixing portion 30a of the housing 30 is fixed to the front side of the rear wall portion 2a of the toilet body 2 via the ceramic-side water stop packing 26 on the rear side thereof. Further, the housing 30 includes a support receiving portion 30b that protrudes forward from the rear end portion. The side wall 30c of the support receiving portion 30b is formed in a substantially rectangular shape in plan view so as to surround the internal space. Furthermore, an LED substrate 34 is attached to the upper end portion of the side wall 30c in the support receiving portion 30b of the housing 30. The LED substrate 34 is fixed to the support receiving portion 30b by a plurality (two) of substrate fixing screws 36, 36. Here, the LED substrate 34 serves as a light emitting portion including a plurality (four) of light sources (LED elements 34a, 34a, 34a, 34a) arranged in the left-right direction on the lower surface thereof. Also, one end side of the power supply harness 32 is electrically connected to a part of the LED substrate 34, and the other end side is electrically connected via a connector (not shown) to a power supply cable (not shown) that supplies power to a functional portion (not shown) of the washlet toilet 1.

[0022] Next, as shown in FIGS. 5 to 8, the light-transmissive cover 40 is formed of a light-transmissive material and is attached so as to cover the support receiving portion 30b of the housing 30 and the LED substrate 34 from above, below, the left and right sides, and the front. Also, the rear side of the light-transmissive cover 40 is fixed to the front surface of the fixing portion 30a of the housing 30 via the main body side water stop packing 38 by a plurality (four) of main body fixing screws 28, 28, 28, 28 attached from the rear side of the fixing portion 30a of the housing 30. Further, the light-transmissive cover 40 is composed of a single member in which the exposed surface portion is integrally formed without a break. Furthermore, the light-transmissive cover 40 has a substantially flat surface 40a (lower surface 40a) on the irradiation side.

[0023] Furthermore, as shown in FIGS. 6 to 8, the LED substrate 34 includes a thin plate-shaped substrate member 34b having a plurality (four) of light sources (LED elements 34a, 34a, 34a, 34a) arranged in the left-right direction on its lower surface. This substrate member 34b is a fixing member for fixing a plurality (four) of light sources (LED elements 34a, 34a, 34a, 34a) into the light-transmissive cover 40, and also functions as a shielding member for shielding the upper sides of the respective light sources 34a, 34a, 34a, 34a so that the light L emitted from each light source 34a, 34a, 34a, 34a does not diffuse upward. More specifically, since the housing 30 itself is open upward, the substrate member 34b of the LED substrate 34 itself blocks the light upward, and for the light that leaks upward around the LED substrate 34, the housing 30 itself made of a material that is difficult to transmit light blocks it.

[0024] Next, the housing 30 includes a light shielding portion 30d provided at the lower end of the support receiving portion 30b. Also, in this light shielding portion 30d, the opening portion 30e provided below each light source 34a, 34a, 34a, 34a is formed so that the light L emitted from each light source 34a, 34a, 34a, 34a can penetrate the light shielding portion 30d in the vertical direction.

[0025] Furthermore, the housing 30 also serves as a fixing member for fixing the LED substrate 34 (each light source 34a, 34a, 34a, 34a) inside the light-transmissive cover 40. In addition, the main body side water stop packing 38 makes the space (gap) between the front surface of the fixing portion 30a of the housing 30, which is such a fixing member, and the rear side step portion (rear side step portion 40b) inside the light transmissive cover 40 facing the front surface in the front-rear direction watertight, and also functions as a light shielding auxiliary member that assists in light shielding so that the light L emitted from each of the light sources 34a, 34a, 34a, 34a does not irradiate from the space (gap) between the front surface of the fixing portion 30a of the housing 30 and the rear side step portion 40b inside the light transmissive cover 40.

[0026] Next, with reference to FIGS. 1 to 10, the operation of the lighting device 14 of the wall-mounted flushing toilet 1 according to an embodiment of the present invention will be described. FIG. 10 is a schematic perspective view of the wall-mounted flushing toilet 1 according to the present embodiment, showing a state in which the lighting device 14 irradiates light onto the floor surface F. According to the lighting device 14 of the wall-mounted flushing toilet 1 according to the above-described present embodiment, the light L emitted from the light source (LED element 34a) of the light emitting portion (LED substrate 34) passes through the light transmissive cover 40 covering the light emitting portion (LED substrate 34) and irradiates the floor surface F below the toilet body 2. Therefore, the space below the toilet body 2 and the floor surface F can be brightly illuminated. Regarding the light transmissive cover 40 in a state of being fixed to the rear wall portion 2a of the toilet body 2 by the fixing portion (fixing portion 30a of the housing 30) of the lighting device 14, since the exposed surface portion is formed of a single member integrally formed without a break, the risk of dirt entering the break in the surface portion of the light transmissive cover 40 can be eliminated. Furthermore, even if dirt adheres to the surface portion of the light transmissive cover 40, since the light transmissive cover 40 is formed of a single member integrally formed without a break, wiping work on the surface portion is easy, so that the cleanability can be improved.

[0027] Moreover, according to the lighting device 14 of the wall-mounted flushing toilet 1 according to the present embodiment, the fixing member (substrate member 34b) that fixes the light source (LED element 34a) of the light-emitting part (LED substrate 34) inside the translucent cover 40 is provided so as to shield the upper part of the light source (LED element 34a) so that the light L emitted from the light source (LED element 34a) does not diffuse upward. As a result, the substrate member 34b itself prevents the upward diffusion of the light L emitted from the light source (LED element 34a) of the light-emitting part (LED substrate 34). Regarding the light that leaks upward around the LED substrate 34, the housing 30 itself made of a light-shielding material blocks it, and while it is possible to reduce the generation of unnecessary reflected light and shadows, it is possible to surely diffuse the light to the floor surface F below the toilet body 2.

[0028] Furthermore, according to the lighting device 14 of the wall-mounted flushing toilet 1 according to the present embodiment, an opening 30e that penetrates the light L emitted from the light source (LED element 34a) in a light-transmitting manner is formed in the light-shielding part 30d of the housing 30 disposed below the light source (LED element 34a) of the light-emitting part (LED substrate 34). As a result, when the light L emitted from the light source (LED element 34a) of the light-emitting part (LED substrate 34) passes through the opening 30e of the light-shielding part 30d of the housing 30 and irradiates the floor surface F below the toilet body 2, the brightness of the light L passing through the opening 30e can be adjusted, and the directivity of the light L can be enhanced by passing the light L through the opening 30e of the light-shielding part 30d.

[0029] Moreover, according to the lighting device 14 of the wall-mounted flushing toilet 1 according to the present embodiment, the light-shielding auxiliary member (main body side water stop packing 38) provided between the fixing member (housing 30) and the translucent cover 40 can eliminate the gap in the front-rear direction between the housing 30 and the translucent cover 40. Therefore, it is possible to suppress the light L emitted from the light source (LED element 34a) of the light-emitting part (LED substrate 34) from irradiating the floor surface F below the toilet body 2 from other than the opening 30e of the light-shielding part 30d.

[0030] Furthermore, according to the lighting device 14 of the wall-mounted flushing toilet 1 according to the present embodiment, the irradiation-side surface (lower surface 40a) of the translucent cover 40 is formed to be substantially flat. Thereby, when the light L emitted from the light source (LED element 34a) of the light-emitting part (LED substrate 34) passes through the irradiation-side surface (lower surface 40a) of the translucent cover 40 and irradiates the floor surface F below the toilet body 2, the spot feeling of the light L condensed on the specific area A of the floor surface F can be enhanced.

[0031] Also, according to the lighting device 14 of the wall-mounted flushing toilet 1 according to the present embodiment, it is possible to provide a wall-mounted flushing toilet 1 provided with a lighting device 14 that can brightly illuminate the space below the toilet body 2 and the floor surface F and can improve the cleanability.

[0032] In the lighting device 14 of the wall-mounted flushing toilet 1 of the above-described present embodiment, the form in which the lighting device 14 is provided in the internal space S of the toilet body 2 behind the lowermost end portion 10b of the drain trap portion 10 and above the lower end 12a of the skirt portion 12 has been described. However, the present invention is not limited to such a form, and the lighting device 14 may be provided at a position below the toilet body 2 on the wall W side or the cabinet side behind the toilet body 2 so as not to be visible from the user side of the toilet body 2.

Explanation of Reference Numerals

[0033] 1 Wall-mounted flushing toilet 2 Toilet body 2a Rear end portion and rear wall portion of the toilet body 4 Cleaning water supply device 4a Water storage tank 6 Cleaning operation device 8 Bowl portion 10 Drain trap portion 10a Inlet portion of the drain trap portion 10b Lowermost end portion of the drain trap portion 10c Top portion of the drain trap portion 10d Bent pipe portion of the drain trap portion 10e Downward pipe portion of the drain trap portion Outlet of the 10f drain trap 12 Skirt part 12a Lower end of the skirt part 14 Lighting device 16 Main water conduit 16a Inlet of the main water conduit 18 Water supply pipe 20 Drain pipe 22 Tapping screw 24 Washer 26 Pottery side water stop packing 28 Body fixing screw 30 Housing (fixing part of lighting device, fixing member) 30a Fixing part of the housing (fixing part of lighting device) 30b Support receiving part of the housing 30c Side wall of the support receiving part of the housing 30d Light shielding part of the housing 30e Opening of the light shielding part of the housing 32 Power supply harness 34 LED substrate (light emitting part) 34a LED element (light source) 34b Substrate member (fixing member) 36 Substrate fixing screw 38 Body side water stop packing (light shielding auxiliary member) 40 Translucent cover 40a Lower surface of the translucent cover (irradiation side surface) 40b Rear side step part inside the translucent cover A Predetermined floor area where light is irradiated, light irradiation area on the floor, light diffusion range F Floor surface inside the toilet room and on the back side of the wall G Glaze L Light to be irradiated L1 Light irradiated at the center of the irradiation area (diffusion range) L2 Light with the maximum illuminance L3 Light irradiated on the most forward side LG Light gradation O1 Center of the floor surface irradiation area, center of the light diffusion range O2 Point where the light with the maximum illuminance in the light irradiation area is irradiated (center of the light) S Internal space of the toilet body The wall surface forming the internal space of the toilet body S1 Toilet room T Fixing unit U Wall W

Claims

1. A lighting device that illuminates a floor surface below a toilet bowl, A fixing part that is fixed to the toilet bowl or a cabinet behind the toilet bowl; a light emitting unit that is attached to the fixed unit and includes a light source that emits light; A light-transmitting cover formed of a light-transmitting material and covering the light-emitting unit; The lighting device is characterized in that, when the light-transmitting cover is fixed to the toilet bowl or the cabinet by the fixing portion, its exposed surface portion is made of a single member that is formed integrally without any gaps.

2. 2. The lighting device according to claim 1, further comprising a fixing member for fixing the light source within the light-transmitting cover, the fixing member being arranged to shield the upper side of the light source so that light emitted from the light source does not diffuse upward.

3. 3. The lighting device according to claim 2, further comprising a light-shielding portion disposed below said light source, said light-shielding portion having an opening formed therein through which light emitted from said light source can pass.

4. 4. The lighting device according to claim 3, further comprising an auxiliary light-shielding member provided between the fixing member and the light-transmitting cover.

5. 2. The lighting device according to claim 1, wherein the light-transmitting cover has a surface on the irradiation side that is formed to be substantially flat.

6. A wall-hung flush toilet equipped with the lighting device according to any one of claims 1 to 5.

Images