JP2017061854A - urinal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a urinal device capable of improving washability and cleanliness of a bowl surface.SOLUTION: A urinal 1 of the present invention includes: a bowl surface 8 for receiving urine; and a water discharge device 28 that is provided at the center of an upper area in the bowl surface and discharges washing water so that the water spreads towards both of right and left ends of the bowl surface. The bowl surface, in a horizontal section crossing the water discharge device, is formed using a concave surface continuously spreading towards the right and left ends and is also formed so as to be positioned between a line segment connecting the right and left ends and a circular arc taking the line segment as a diameter. The bowl surface is formed so as to have horizontal section concave surfaces whose curvature radius continuously decreases downwards from the top edge of the bowl surface.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a urinal, and more particularly to a urinal that cleans a bowl surface with wash water discharged from a water discharge device so as to spread in the left-right direction.

Conventionally, for example, the bowl surface has a side portion that rises forward so as to form inward sidewalls from the left and right ends of the bowl surface, and a spreader is provided on the bowl surface at the center upper portion of the bowl surface. Toilet bowl is known. In such a conventional urinal, in order to prevent the wash water discharged from the spreader from splashing out of the urinal, the wash water discharged from the spreader is not actively supplied to the side surface portion forming the lateral wall. It is like that.
On the other hand, there is a urinal that cleans the side surface portion of the bowl surface by enclosing the portion forming the bowl surface of the urinal with the outer peripheral wall portion formed further outward as described in Patent Document 1. Proposed. In such a urinal, the washable water that is discharged is allowed to flow over the side surface portion of the bowl surface, and the wash water scattered from the side surface portion is received by the outer peripheral wall portion that further surrounds the outer side wall portion. Is reduced.

  Further, for example, as described in Patent Document 2, the bowl surface has a side portion that rises forward in the shape of a wall so as to form inward sidewalls from the left and right ends of the bowl surface. There is known a urinal that makes it difficult to scatter splashing water by retreating the region downward.

Japanese Patent No. 5185067 JP 2014-70376 A

  However, as in the conventional urinal as shown in Patent Document 1 described above, in order to allow the wash water to flow over the side surface portion and catch the scattered wash water by the outer peripheral wall portion, the outer side of the bowl surface is placed on the outer periphery. The structure enclosed by a wall part is needed. In addition, if an attempt is made to manufacture a urinal having an outer peripheral wall portion, it is necessary to enclose the entire urinal further outside, which may increase the size of the entire urinal. In addition, when the amount of cleaning water is reduced in accordance with a request for water saving, there is a possibility that sufficient cleaning cannot be performed. Therefore, there is a problem that it is not possible to employ a configuration in which the outer side of the bowl surface is surrounded by the outer peripheral wall.

  Further, in the conventional urinal as shown in Patent Document 2, the washing water discharged from the spreader does not reach the side part rising in the shape of a wall forward from the left and right ends of the bowl surface. There was a problem that some parts could not be washed.

  The present invention has been made to solve the above-described problems, and the bowl surface can spread the wash water to the left and right ends of the bowl surface, and a side surface portion of the bowl surface in a conventional urinal is provided. The bowl surface can be washed more extensively than in conventional urinals by allowing the wash water to reach the vicinity of both left and right ends of the bowl surface, and the unwashable part of the bowl surface can be reduced, It aims at providing the urinal which can improve the washability and cleanliness of a bowl surface.

In order to achieve the above object, the present invention is a urinal for washing a bowl surface with washing water, provided at the center of a bowl surface for receiving urine in the front of the urinal and an upper region in the bowl surface. A water discharge device that discharges the cleaning water so as to spread toward the left and right ends of the bowl surface, and the bowl surface is a concave curved surface that extends continuously in the direction of the left and right ends in a horizontal section across the water discharge device. Furthermore, the bowl surface is formed so as to be positioned between a line segment connecting the left and right end portions thereof and an arc having a diameter of the line segment. It is formed so as to continuously decrease from the upper end of the surface downward.
In the present invention configured as described above, the bowl surface is positioned between a line segment connecting the left and right ends of the bowl surface and a circular arc having a diameter of the line segment in a horizontal section across the water discharge device. Is formed. Therefore, according to the present invention, the wash water can reach the vicinity of both the left and right ends of the bowl surface, and the bowl surface can be washed in a wider range than in the conventional urinal, and the unwashable portion of the bowl surface is reduced. And the cleaning and cleanliness of the bowl surface can be improved.
Furthermore, in the present invention, the bowl surface is formed so that the radius of curvature of the concave curved surface in the horizontal cross section continuously decreases from the upper end of the bowl surface, and therefore gradually decreases toward the lower side. The width of the bowl surface in the horizontal direction is reduced, making it easier for the user to approach a position closer to the bowl surface than in the past, making it difficult for the user's urine to drip on the floor and causing the spilling to contaminate the floor. Can prevent you from feeling uncomfortable.

In the present invention, preferably, an angle formed by a line segment connecting the left and right ends of the bowl surface and a tangent at the end of the bowl surface is greater than 0 degree and less than or equal to 60 degrees. It is said.
In the present invention configured as described above, the angle between the line segment connecting the left and right ends of the bowl surface and the tangent line at the end of the bowl surface is less than 0 degrees in the horizontal cross section across the water discharge device. It is formed to be largely 60 degrees or less. Therefore, the bowl surface can spread the wash water discharged from the water discharge device provided in the center of the upper region thereof toward the left and right ends of the bowl surface. Therefore, the side surface portion of the bowl surface that has caused a portion that cannot be washed due to water discharge in the conventional urinal is not provided, and in the urinal of the present invention, the wash water reaches the vicinity of both the left and right ends of the bowl surface. The surface can be cleaned more extensively than in a conventional urinal, the non-cleanable part of the bowl surface can be reduced, and the cleanability and cleanliness of the bowl surface can be improved.

In the present invention, preferably, an angle formed by a line segment connecting the left and right ends of the bowl surface and a tangent at the end of the bowl surface is 10 degrees or more and 45 degrees or less. Yes.
In the present invention configured as described above, the angle between the line segment connecting the left and right ends of the bowl surface and the tangent line at the end of the bowl surface is less than 0 degrees in the horizontal cross section across the water discharge device. It is formed to be largely 45 degrees or less. Therefore, the bowl surface can spread the wash water discharged from the water discharge device provided in the center of the upper region thereof toward the left and right ends of the bowl surface. Therefore, the side surface portion of the bowl surface that has caused a portion that cannot be washed due to water discharge in the conventional urinal is not provided, and in the urinal of the present invention, the wash water reaches the vicinity of both the left and right ends of the bowl surface. The surface can be cleaned more extensively than in a conventional urinal, the non-cleanable part of the bowl surface can be reduced, and the cleanability and cleanliness of the bowl surface can be improved.

In the present invention, preferably, the bowl surface is formed such that the depth of the bowl surface in a horizontal section across the water discharging device is in the range of 40 mm to 55 mm.
In the present invention configured as described above, the bowl surface is formed at a relatively shallow depth so that the depth of the bowl surface in a horizontal section across the water discharge device is in the range of 40 mm to 55 mm. The washing water discharged from the water discharging device provided in the center of the upper area of the surface can be spread to the left and right end portions of the bowl surface.

In the present invention, preferably, the bowl surface has a shelf portion that extends while descending from the left and right sides of the bowl surface to the front side, and the shelf portion directs a part of the cleaning water on the bowl surface to the front side. It comes to lead.
In the present invention configured as described above, the shelf portion can guide a part of the washing water flowing down near the left and right sides of the bowl surface toward the front side of the bowl surface, up to the front portion of the bowl surface. The bowl surface can be washed in a wider range than before by allowing the washing water to reach, the portion of the bowl surface that cannot be washed can be reduced, and the washability and cleanliness of the bowl surface can be improved.

In the present invention, preferably, the shelf is formed on the lower side from the vicinity of the center in the height direction of the bowl surface.
In the present invention configured as described above, the shelf portion can guide a part of the wash water flowing down near the left and right sides of the bowl surface from the vicinity of the center of the bowl surface in the height direction toward the front side. The cleaning water can reach the front part of the bowl surface and the bowl surface can be cleaned more extensively than before, and the unwashable part of the bowl surface can be reduced, improving the cleaning and cleanliness of the bowl surface. Can be made.

In the present invention, preferably, the bowl surface is formed such that a single curvature radius of the bowl surface in a horizontal section across the water discharging device is in a range of 200 mm to 500 mm.
In the present invention configured as described above, the bowl surface is formed such that a single curvature radius of the bowl surface in a horizontal section across the water discharging device is in a range of 200 mm to 500 mm, and the position of the water discharging device at the center of the concave curved surface. The bowl surface makes it easy to guide the wash water discharged from the water discharge device provided in the center of the upper area toward the left and right ends of the bowl surface. be able to. Accordingly, there is no side portion that rises almost vertically from the conventional bowl surface, and the wash water reaches near the left and right ends of the bowl surface of the urinal of the present invention so that the bowl surface is made wider than before. It can wash | clean and can reduce the part which a bowl surface cannot wash.

  According to the urinal of the present invention, the bowl surface can spread the wash water to the left and right end portions of the bowl surface, and the side surface portion of the bowl surface in the conventional urinal is not provided. The bowl surface can be cleaned in a wider range than in conventional urinals by reaching the left and right ends of the surface, and the non-washable part of the bowl surface can be reduced. Can be improved.

It is a whole perspective view which shows the urinal by 1st Embodiment of this invention. It is a front view of the urinal of FIG. It is a side view of the urinal of FIG. It is the longitudinal cross-sectional view seen along the IV-IV line of FIG. It is a top view of the urinal of FIG. It is the schematic which shows the state which attached the spreader of the urinal by 1st Embodiment of this invention to the bowl surface from the side. It is a longitudinal cross-sectional view which shows the longitudinal cross-section of the front-back direction in the position which shifted | deviated slightly to the left from the center of the left-right direction in the state which attached the spreader of the urinal by 1st Embodiment of this invention to the bowl surface. It is the schematic which shows the structure of the flow path of the automatic toilet cleaning unit of the urinal by 1st Embodiment of this invention. It is sectional drawing seen along the IX-IX line of FIG. It is sectional drawing seen along the XX line of FIG. It is sectional drawing seen along the XI-XI line of FIG. It is sectional drawing seen along the XII-XII line | wire of FIG. FIG. 3 is a cross-sectional view taken along line XIII-XIII in FIG. 2. It is sectional drawing seen along the XIV-XIV line | wire of FIG. FIG. 3 is a diagram illustrating a shape of a front portion of a bowl surface in a cross-sectional view taken along line XI-XI in FIG. 2. It is a whole perspective view which shows the urinal by 2nd Embodiment of this invention. It is a front view of the urinal of FIG. It is the longitudinal cross-sectional view seen along the XVIII-XVIII line of FIG. It is a top view of the urinal of FIG.

  A urinal according to a first embodiment of the present invention will be described with reference to the accompanying drawings. First, the basic structure of a urinal will be described with reference to FIGS. 1 is an overall perspective view showing a urinal according to a first embodiment of the present invention, FIG. 2 is a front view of the urinal of FIG. 1, and FIG. 3 is a side view of the urinal of FIG. 4 is a longitudinal sectional view taken along line IV-IV in FIG. 2, and FIG. 5 is a plan view of the urinal in FIG.

  As shown in FIGS. 1 to 5, reference numeral 1 denotes a urinal according to the first embodiment of the present invention. The urinal 1 cleans the urinal body 2 made of earthenware and the urinal body 2. And an automatic toilet cleaning unit 4 (shown in FIGS. 2 and 3 and omitted in other drawings). The urinal 1 is a wall-mounted urinal that is attached along the wall surface behind the floor so that the lowermost part of the urinal is floated from the floor surface. It may be a urinal of the type.

  The urinal body 2 of the urinal 1 has a storage chamber 6 (shown schematically in FIGS. 2 and 3 and omitted in other drawings) for storing the automatic toilet cleaning unit 4 described above at the upper end. A bowl surface 8 extending downward from the front surface 7 of the storage chamber 6 and a discharge port 10 formed at the bottom of the bowl surface 8 are provided.

  The storage chamber 6 is formed by a lid 3 that is a separate body from the urinal body 2. Further, the front surface 7 of the storage chamber 6 is formed to be inclined rearward as will be described in detail later. In addition, an eye plate 12 is disposed at the discharge port 10. Further, the discharge port 10 is connected to a drain trap pipe (not shown) and a drain pipe (not shown) arranged on the downstream side.

  Next, the automatic toilet cleaning unit 4 will be described with reference to FIGS. FIG. 6 is a schematic view showing a state in which the spreader of the urinal according to the first embodiment of the present invention is attached to the bowl surface, and FIG. 7 shows the spreader of the urinal according to the first embodiment of the present invention on the bowl surface. FIG. 8 is a longitudinal sectional view showing a longitudinal section in the front-rear direction at a position slightly shifted to the left side from the center in the left-right direction in the state of being attached to the left and right, and FIG. FIG. 9 is a cross-sectional view taken along line IX-IX in FIG. 6, and FIG. 10 is a cross-sectional view taken along line XX in FIG. The bowl surface 8 in FIGS. 6 and 7 is in a state where the lower part is slightly inclined toward the rear side.

  The automatic toilet cleaning unit 4 includes a main water supply pipe 14 for supplying cleaning water from a water supply source such as a water supply, a first water supply pipe 16 branched from the main water supply pipe 14, and a second water supply branched from the main water supply pipe 14. A pipe 18, a first flow rate adjusting device 20 provided in the first water supply pipe 16, a first on-off valve 22 attached to the first water supply pipe 16 for supplying and stopping water supply, and a second water supply pipe 18. The second flow rate adjusting device 24, the second on-off valve 26 attached to the second water supply pipe 18 for supplying and stopping water supply, and the water discharge part attached to the tips of the first water supply pipe 16 and the second water supply pipe 18 Based on a certain spreader 28, a human body detection sensor 30 for detecting the presence or absence of a user, a detection signal from the human body detection sensor 30, a predetermined control program, and the like, the first on-off valve 22, the second on-off valve 26, and the like are controlled. Can control unit It is provided with a 2, a.

The first flow rate adjusting device 20 is a constant flow valve that can adjust the wash water passing through the first water supply pipe 16 to an appropriate constant flow rate. The first flow rate adjusting device 20 may be configured by another device that can adjust the cleaning water to an appropriate flow rate using a flow rate sensor or the like. The first flow rate adjusting device 20 may be configured to be controlled by the control unit 32. The first flow rate adjusting device 20 sets the instantaneous flow rate of the cleaning water supplied to the downstream first supply passage 38 to be described later to a relatively high instantaneous flow rate range, for example, a range of 8 to 17 L / min, preferably 11 to 11. The range is adjusted to 13 L / min.
The first on-off valve 22 is an electromagnetic valve that opens and closes the flow path of the first water supply pipe 16 according to a control signal from the control unit 32. The 1st on-off valve 22 may be comprised by the other flow-path opening-and-closing apparatus which can supply and stop water supply.

The second flow rate adjusting device 24 is a constant flow valve that can adjust the cleaning water passing through the second water supply pipe 18 to an appropriate constant flow rate. The second flow rate adjusting device 24 may be configured by another device that can adjust the cleaning water to an appropriate flow rate using a flow rate sensor or the like. The second flow rate adjusting device 24 may be configured to be controlled by the control unit 32. The second flow rate adjusting device 24 sets the instantaneous flow rate of the cleaning water supplied to the downstream second supply passage 40 to be described later to a relatively low instantaneous flow rate range, for example, a range of 2 to 8 L / min, preferably 5 to 5. The range is adjusted to 7L / min.
The second on-off valve 26 is an electromagnetic valve that opens and closes the flow path of the second water supply pipe 18 according to a control signal from the control unit 32. The second opening / closing valve 26 may be constituted by another flow path opening / closing device capable of supplying and stopping water supply.

In the present embodiment shown in FIG. 10 described above, the automatic toilet cleaning unit 4 is attached to the first water supply pipe 16 to supply and stop water supply, and to the second water supply pipe 18 to supply water. And a second on-off valve 26 for supplying and stopping the water, and the control unit 32 opens and closes the first on-off valve 22 to control the start and stop of the supply of cleaning water to the first supply passage 38, and the second on-off valve 26 is opened and closed to control the start and stop of the supply of cleaning water to the second supply passage 40.
However, in the present embodiment, as a modification, the automatic toilet flushing unit 4 replaces the first on-off valve 22 and the second on-off valve 26 described above with the main water supply pipe 14, the first water supply pipe 16, and the second water supply. A switching valve such as a three-way switching valve may be provided at a branch point with the pipe 18. Specifically, the control unit 32 controls a switching valve provided at a branch point between the main water supply pipe 14, the first water supply pipe 16, and the second water supply pipe 18, thereby the first water supply pipe 16 and the first water supply pipe 16. The supply start and stop of the cleaning water to the supply passage 38 and the supply start and stop of the cleaning water to the second water supply pipe 18 and the second supply passage 40 can be controlled independently. As another modified example, the automatic toilet cleaning unit 4 starts and stops supplying cleaning water to the first water supply pipe 16 and the first supply passage 38 instead of the first on-off valve 22 and the second on-off valve 26 described above. In addition, another valve structure that can independently control the start and stop of the supply of the washing water to the second water supply pipe 18 and the second supply passage 40 and a combination thereof may be provided.

The human body detection sensor 30 is an infrared sensor that detects the presence / absence of a user in front of the urinal 1 and the distance to the user. When the human body detection sensor 30 detects that the user has added a use and has moved away from the urinal 1 by a predetermined distance, an operation signal is transmitted from the control unit 32, and the second on-off valve 26 is opened by this operation signal. Thus, the wash water is supplied from the second water supply pipe 18 to the spreader 28, and the bowl surface 8 of the urinal 1 is washed. The human body detection sensor 30 is not limited to an infrared sensor, but may be a concealable radio wave sensor (microwave sensor).
The control unit 32 receives the detection result of the presence / absence of the user of the human body detection sensor 30 and performs control to open and close the second on-off valve 26, and a predetermined time, for example, 2 hours elapses. Every time, an operation signal is transmitted from the control unit 32, and the first on-off valve 22 is controlled to open by this operation signal. As a result, wash water is supplied from the first water supply pipe 16 to the spreader 28, the bowl surface 8 of the urinal 1 is washed, and a drain trap (not shown) and a drain pipe disposed downstream of the discharge port 10. It is possible to perform facility protection cleaning that suppresses the propagation of germs in the road (not shown) and suppresses adhesion of urine stones and the like.

Next, the detailed structure of the spreader 28 will be described with reference to FIGS.
As shown in FIG. 6 and the like, in this automatic toilet cleaning unit 4, the spreader 28 is attached to the front surface 7 of the storage chamber 6 of the front portion 8 a of the urinal body 2.
The spreader 28 is disposed on the rear side of the first water discharge port 34 for discharging the cleaning water toward the substantially central region of the bowl surface 8 and the first water discharge port 34. A second water discharge port portion 36 that discharges water so as to spread in the left and right regions wider than the region, a first supply passage 38 that supplies cleaning water to the first water discharge port portion 34, and a supply of cleaning water to the second water discharge port portion 36 And a second supply passage 40.

  The spreader 28 is provided substantially at the center of the upper region in the bowl surface 8 and discharges the cleaning water so as to spread from the central region of the bowl surface 8 to the left and right ends.

  The first supply passage 38 is connected to the tip of the first water supply pipe 16 and forms a water passage independent of the second supply passage 40. The first supply passage 38 supplies cleaning water having a relatively high instantaneous flow rate to the first water discharge port 34. The second supply passage 40 is connected to the tip of the second water supply pipe 18 and forms a water passage independent of the first supply passage 38. The second supply passage 40 supplies cleaning water having a relatively low instantaneous flow rate to the second water discharge port portion 36.

The first water discharge port portion 34 includes a first water discharge port upper wall 34 a that forms both left and right ends of the first water discharge port portion 34, and a first water discharge port front wall that forms a front wall surface of the first water discharge port portion 34. 34b and a first water outlet rear wall 34c forming a wall surface on the rear side of the first water outlet 34. The first water outlet 34 is a fan-shaped first wall between the first water outlet front wall 34b and the first water outlet rear wall 34c between the left and right first water outlet upper walls 34a below the spreader 28. One opening passage 34d is formed.
The first water discharge port portion 34 is formed with a first water discharge port upper wall 34a at a position of approximately 40 ° symmetrically from the vertically lower side. Accordingly, the angle A1 between the left and right first water outlet upper walls 34a is formed to be about 80 °. The angle A1 between the left and right first water outlet upper walls 34a is, for example, in the range of 50 ° to 120 °, preferably in the range of 60 ° to 90 °. Since the first water outlet upper wall 34a forms the upper end of the opening passage 34d of the first water outlet 34, the wash water discharged from the first water outlet 34 along the left and right first water outlet upper walls 34a. The upper edge of the wash water discharged from the first water discharge port 34 is regulated. In addition, since the first water outlet upper wall 34a extends downward from the horizontal, even when the instantaneous flow rate per unit area of the cleaning water flowing out from the first water outlet 34 is increased, the cleaning water The spread in the left-right direction can be suppressed.

The second water discharge port portion 36 includes a second water discharge port upper wall 36 a that forms the upper end of the second water discharge port portion 36, a second water discharge port hanging wall 36 e that extends to the lower center of the second water discharge port portion 36, The second water discharge port front wall 36b that forms the front wall surface of the second water discharge port portion 36 and the second water discharge port rear wall 36c that forms the rear wall surface of the second water discharge port portion 36 are provided.
The second water discharge port portion 36 is generally fan-shaped between the left and right second water discharge port upper walls 36a at the lower part of the spreader 28 between the common second water discharge port front wall 36b and the second water discharge port rear wall 36c. A second opening passage 36d is formed.

In the second water discharge port portion 36, a second water discharge port upper wall 36a is formed at a position of approximately 115 ° symmetrically from the vertically lower side. Therefore, the angle A2 between the left and right second water discharge upper walls 36a is formed to be about 230 °. The angle A2 between the left and right second water discharge outlet upper walls 36a is, for example, in the range of 190 ° to 250 °, preferably in the range of 210 ° to 230 °. Since the second water discharge upper wall 36a forms the upper end of the second opening passage 36d of the second water discharge port 36, the wash water discharged from the second water discharge port 36 is the left and right second water discharge upper walls 36a. The upper edge of the spread of the wash water discharged from the second water discharge port 36 is determined. Since the second water outlet upper wall 36a extends upward from the horizontal, the upper edge of the wash water flowing out from the second water outlet 36 along the second water outlet upper wall 36a is obliquely upward from the spreader 28. The water is discharged to rise.
The second water discharge port portion 36 can discharge the wash water so as to diffuse over the region between the left and right second water discharge port upper walls 36a, and has a water curtain that extends from diagonally upward and downward to the vicinity of both left and right ends in the horizontal direction. Can be formed.

Next, the detailed structure of the urinal body 2 of the urinal 1 will be described with reference to FIGS. 1 to 5 and 11 to 14.
11 is a cross-sectional view taken along line XI-XI in FIG. 2, FIG. 12 is a cross-sectional view taken along line XII-XII in FIG. 2, and FIG. 13 is a cross-sectional view taken along line XIII-XIII in FIG. 14 is a cross-sectional view taken along line XIV-XIV in FIG. 2, and FIG. 15 is a cross-sectional view taken along line XI-XI in FIG. It is a figure explaining the shape of the front part of a surface.

  First, as shown in FIGS. 2 and 3, the urinal 1 according to the present embodiment is a urinal of the type in which an automatic toilet cleaning unit 4 is stored in a storage chamber 6 formed at the upper end of the urinal body 2. It is. In this embodiment, in such a type of urinal 1, the front surface 7 of the storage chamber 6 of the urinal body 2 is formed continuously with the bowl surface 8 and inclined rearward. In the urinal body 2, the front surface 7 of the storage chamber 6 is integrated with the bowl surface 8. Furthermore, the front surface 7 of the storage chamber 6 is formed continuously with the upper side of the bowl surface 8 and further inclined toward the rear. Here, “continuous” of the front surface 7 and the bowl surface 8 of the storage chamber 6 means that the front surface 7 and the bowl surface 8 of the storage chamber 6 are formed flush or substantially flush. Yes. Moreover, it does not need to be completely flush, and for example, there may be a small step, and it is sufficient that the washing water flowing from the front surface of the storage chamber 6 to the bowl surface 8 does not peel off.

  The bowl surface 8 has an arc-shaped (arch-shaped) front portion 8a that is open from the top to the bottom so that the front surface faces the user. The bowl surface 8 is not provided with a side surface portion protruding forward from the bowl surface in the upper region of the bowl surface 8 where the spreader 28 is provided (not shown). It is formed only from the portion 8a. Such a front portion 8a forms a forward curved surface in which the perpendicular of the tangent of its curved surface extends in a direction toward the user standing in front of the urinal body 2.

The front portion 8a of the bowl surface 8 is formed as a concave curved surface that is continuous in the left-right direction. The front portion 8a is a curved surface that follows the curved surface of the user's trunk so that the curved surface of the user's trunk can be easily received. The upper region formed only from the front surface portion 8a of the bowl surface 8 is an arc (curvature radius R) drawn with one curvature radius R from the left end portion 8b to the right end portion 8c of the bowl surface 8 in plan view. Is an arc that does not change substantially in the middle, and is formed along an arc called a single R), and a central portion of the arc forms a single R region 8g disposed on the rear side. . That is, in the single R region 8g, the curved surface is formed by a substantially single arc shape having a substantially single radius of curvature R. In the single R region 8g, the curvature radius of the arc is formed so as to gradually decrease as it goes downward from the upper end 8d of the bowl surface 8, and the curvature is formed so as to gradually increase, and gradually as it goes downward. In addition, the width of the bowl surface 8 in the left-right direction is reduced. The single R region 8g of the bowl surface 8 is formed at least in a range of 200 mm from the upper end of the bowl surface 8, and preferably in a region of 300 mm from the upper end.
A region further below the single R region 8g of the bowl surface 8 forms a composite R region 8h which is a combination of arcs having two types of curvature radii R, or a combined shape portion formed by combining arcs and straight lines. Yes.

Specifically, as shown in FIG. 11, the bowl surface 8 is positioned at a distance L1 (L1 = 150 mm) from the upper end 8d of the bowl surface 8 in the single R region 8g, that is, the front surface 7 of the storage chamber 6 and the spreader. 28 is formed by a front portion 8a formed by an arc having a single radius of curvature with a radius of curvature R1 (R1 = 300 mm) which is a large radius of curvature in plan view.
As shown in FIG. 12, the bowl surface 8 has a radius of curvature smaller than the radius of curvature R1 in a plan view at a position of a distance L2 (L2 = 300 mm) from the upper end 8d of the bowl surface 8 in the single R region 8g. It is formed by a front portion 8a formed by an arc having a single radius of curvature with a certain radius of curvature R2 (R2 = 200 mm).
The radius of curvature of the front portion 8a in the single R region 8g is set, for example, in the range of 200 to 500 mm, preferably in the range of 200 to 400 mm. With this range, it is possible to prevent the user's hand or arm holding the local part from coming into contact with the bowl surface. It is possible to suppress the occurrence of a situation of fouling.

  The front surface portion 8a of the bowl surface 8 is formed as a concave curved surface that is continuous in the left-right direction so that the cleaning water can be guided to both the left and right end portions of the bowl surface 8. In the concave curved surface, at the position of the spreader 28 at the center of the curved surface, the central portion 8e is moved backward, and the left and right end portions 8b and 8c, which are the left and right ends of the curved surface, are slightly forward of the central portion 8e. It is arranged on the side and forms a continuous curved surface that draws a gentle arc.

  As shown in FIG. 15, the bowl surface 8 has a line segment l6 connecting the left end portion 8b and the right end portion 8c of the bowl surface 8 in a horizontal section across the spreader 28, and an arc having a diameter of the line segment l6. It is formed so that it may be located between l7. Therefore, the shape of the bowl surface 8 can be freely set in the range between the line segment l6 connecting the left end portion 8b and the right end portion 8c of the bowl surface 8 and the arc l7.

  As shown in FIG. 15, the bowl surface 8 has a horizontal section across the spreader 28 and a wall mounting surface 9 on the back surface of the urinal 1 from the left end 8b (the urinal of the present invention is floor-mounted as described above. This is also applicable to flush toilets of the urinal, and even when it is not actually mounted on the wall surface, it is called the wall mounting surface 9 as the back side surface of the urinal 1) and the front surface of the bowl surface 8. The angle α1 formed by the portion 8a (for example, the tangent L at the end of the front portion 8a) is formed in an angle in the range of greater than 45 degrees and less than 90 degrees. Similarly, the bowl surface 8 is formed with a perpendicular line 12 extending downward from the right end portion 8c to the wall mounting surface 9 and a front portion 8a of the bowl surface 8 (for example, a tangent L at the end portion of the front portion 8a). The angle α2 to be formed is an angle in a range greater than 45 degrees and less than 90 degrees. Accordingly, in the vicinity of the left end portion 8b in the horizontal section crossing the spreader 28, a virtual line l3 (line segment l6) connecting the left end portion 8b and the right end portion 8c and the front portion 8a of the bowl surface 8 (for example, the front portion 8a). The angle α3 formed by the tangent line L) at the end of the angle is formed to an angle in the range of greater than 0 degree and less than or equal to 60 degrees, preferably greater than or equal to 10 degrees and less than or equal to 45 degrees. Further, in the vicinity of the same right end portion 8c, an imaginary line l3 (segment 16) connecting the left end portion 8b and the right end portion 8c and the front portion 8a of the bowl surface 8 (for example, a tangent at the end portion of the front portion 8a). The angle α4 formed by L) is an angle in a range greater than 0 degree and 60 degrees or less, preferably 10 degrees or more and 45 degrees or less.

  The bowl surface 8 has a depth of 40 mm to 55 mm in the horizontal section across the spreader 28, that is, the depth D from the left end 8 b and the right end 8 c to the center 8 e where the spreader 28 is located. Arranged within the range. Thus, the front portion 8a in the vicinity of the spreader of the bowl surface 8 is formed such that the distance in the front-rear direction between the left end portion 8b, the right end portion 8c, and the central portion 8e is in the range of 40 mm to 55 mm. Yes. The front portion 8a is formed so that the distance in the front-rear direction between the left end portion 8b, the right end portion 8c, and the central portion 8e is relatively short. Therefore, the front portion 8a can be formed as a concave surface having a relatively shallow depth.

  Further, the bowl surface 8 is formed with a front portion 8a (for example, a tangent L at the end of the front portion 8a) and a bowl portion left side surface 11a (for example, a tangent line of the bowl portion left side surface 11a) in a horizontal section across the spreader 28. The angle α5 may be formed at an angle in the range of 30 degrees to 80 degrees. Similarly, the bowl surface 8 has an angle α6 formed by the front portion 8a (for example, the tangent L at the end of the front portion 8a) and the bowl portion right side surface 11b (for example, the tangent line of the bowl portion right side surface 11b) at 30 degrees. You may form in the angle of the range of -80 degree | times. By forming the front part 8a of the bowl surface 8 at a predetermined angle with respect to the bowl part right side surface 11b and the bowl part left side surface 11a, the front part 8a extends relatively laterally with respect to the rear wall surface and is directed forward. Can be formed as a surface. In addition, the bowl part left side surface 11a and the bowl part right side surface 11b may be formed so that each other's back side part extends in a letter C when viewed from the front of the urinal, or so that they are parallel to each other. It may be formed, or the back side portions of each other may be formed so that the back side narrows in a reverse C shape. Moreover, the bowl part left side surface 11a and the bowl part right side surface 11b may be formed by the rounded curved surface.

  The bowl surface 8 has a single radius of curvature of the front portion 8a of the bowl surface 8 in a horizontal section across the spreader 28, which is formed in the range of 150 mm to 500 mm, for example, preferably in the range of 200 mm to 500 mm, most preferably. Is formed in the range of 150 mm to 450 mm.

  In the horizontal cross section across the spreader 28, the bowl surface 8 is in contact with a virtual line 14 extending horizontally at the position of the spreader 28 and a virtual line 14 extending horizontally at the position of the spreader 28. You may form in the curved surface which has a predetermined curvature radius so that it may be located between the virtual lines 15 of a specific circular arc. The virtual line 15 of the specific arc is, for example, an arc having a radius of curvature of 80 mm to 200 mm, for example, an arc having a radius of curvature of 90 mm.

The bowl surface 8 is a compound arc formed by combining arcs having two kinds of curvature radii in plan view at a position of a distance L3 (L3 = 450 mm) from the upper end 8d of the bowl surface 8 in the compound R region 8h. It is formed by a front portion 8a having a shape.
In the lower composite R region 8h, the bowl surface 8 has a left end 8b and a right end 8c extending forward, and a central portion 8e is retracted rearward, for example, from the upper end 8d of the bowl surface 8. At the position of the distance L4 (L4 = 500 mm), an arc-shaped portion 8i (front portion 8a) that opens in a direction toward the user in a plan view and a straight portion 8j (side surface) that protrudes toward the user on both sides thereof. Part 8k).
The bowl surface 8 has a front surface portion 8a and a side surface portion 8k protruding toward the user in a region below the position of the distance L4 from the upper end 8d.

  The bowl surface 8 has a horizontal cross section of the bowl surface 8 in the vicinity of the left end portion 8b as shown in FIG. 11 at the height on the upper side, particularly in the single R region 8g, for example, in the vicinity of the spreader 28. The tangent line L of the bowl surface 8 in the vicinity of the right end 8c is formed so that the front side opens outward.

The bowl surface 8 is arranged such that the left end 8b and the right end 8c protrude forward from the center 8e in a certain horizontal section. Furthermore, the bowl surface 8 is arranged so that the left end portion 8b and the right end portion 8c gradually protrude forward as it goes downward. Since the left end portion 8b and the right end portion 8c are arranged so as to protrude forward from the central portion 8e, the user who is using the urinal 1 can see his / her own local area as a surrounding other person (neighbor Can be shielded from being easily seen by the user of the urinal.
Further, the front surface portion 8a of the bowl surface 8 is formed to be inclined rearward from the upper end 8d of the bowl surface 8 downward. Accordingly, the central portion 8e of the front portion 8a is formed on the back side so as to gradually retreat downward from the upper end 8d.
Further, since the spreader 28 is disposed slightly rearward of the central portion 8e, the user can easily approach the front portion 8a.

  In the lower part of the bowl surface 8, a left end 8b and a right end 8c protrude forward toward the tip 8f. While the user approaches the bowl surface 8 at the upper part of the bowl surface 8, the tip 8f at the lower part of the bowl surface 8 protrudes toward the user side, so that the user's urine hangs down on the floor. It is difficult to cause spillage that stains the floor. The lower part of the bowl surface 8 is formed on the lower side so as to collect the wash water flowing down and guide it to the discharge port 10.

Next, the operation of the urinal according to the first embodiment of the present invention will be described.
First, the flow of the urine washing operation by the urinal 1 according to the first embodiment of the present invention will be described.
Normally, when the user stands in front of the urinal 1, the human body detection sensor 30 detects the presence of the user and sends detection information to the control unit 32, and the control unit 32 recognizes the presence of the user. When the user finishes urination on the bowl surface 8 of the urinal 1 and the user who has finished urination leaves from the front of the urinal 1 and the human body detection sensor 30 is in a non-detection state, the control unit 32 causes the user to urinate the urinal. The control unit 32 starts urine washing by determining that it has left 1.

  In the urine washing operation, the control unit 32 sends a control signal to the second opening / closing valve 26 to open the second opening / closing valve 26, and the washing water supplied from the main water supply pipe 14 is supplied from the second water supply pipe 18 to the second supply. Supply to the passage 40. At this time, the instantaneous flow rate per unit area of the cleaning water supplied to the second supply passage 40 is adjusted by the second flow rate adjusting device 24 to the above-described relatively low instantaneous flow rate range. As will be described later, the cleaning water is supplied to the bowl surface 8 from one main water supply pipe 14 through the first water supply pipe 16 and the second water supply pipe 18 that supply cleaning water having different instantaneous flow rates. Become. The wash water supplied to the second supply passage 40 is diffused so as to collide with the second water discharge port front wall 36b in the second water discharge port portion 36 and spread between the left and right second water discharge port upper walls 36a. It flows like. The wash water discharged from the second water discharge port portion 36 is discharged so as to spread upward from between the left and right second water discharge port upper walls 36a in the left-right direction, and in the front-rear direction, before the second water discharge port. It is discharged rearward from the space between the wall 36b and the second water discharge port rear wall 36c toward the bowl surface 8 on the rear side. 1 and 12, the flow of cleaning water discharged from the second water discharge port 36 is indicated by an arrow A. The upper wash water in the second water discharge port portion 36 is discharged so as to rise obliquely upward and downward along the second water discharge port upper wall 36a inclined upward from the horizontal.

  Since the angle between the left and right second water discharge port upper walls 36a is formed to be relatively large, the wash water discharged from the second water discharge port part 36 is discharged over a wide range from the left and right upper side of the bowl surface 8 to the center lower side. Is done. Moreover, the wash water discharged from the second water discharge port 36 can be washed over a wide range from the left and right diagonally upper left and right regions of the spreader 28 to the left and right regions wider than the central region of the bowl surface 8. At this time, the wash water discharged from the second water discharge port 36 flows down along the front surface portion 8a of the bowl surface 8 formed to be inclined downward from the upper end 8d toward the lower side, and in the left-right direction. The momentum of the wash water heading diagonally upward is weakened, and the lateral spread of the wash water can be suppressed, and the wash water is prevented from jumping out of the bowl surface 8. Since the wash water discharged from the second water discharge port 36 is a wash water having a relatively low instantaneous flow rate, the wash water reaches the vicinity of both left and right ends of the bowl surface 8 to perform cleaning, while the right and left sides of the bowl surface 8 are washed. Without flowing out to the outside beyond both ends, it is possible to flow down while washing the vicinity of both ends of the left end portion 8b and the right end portion 8c of the bowl surface 8.

  Thus, the wash water discharged from the spreader 28 can be guided from the center of the bowl surface 8 to the left and right end portions by the bowl surface 8. Accordingly, the washing water can be made to reach the vicinity of the left and right ends of the bowl surface 8 of the urinal 1 of the present invention, and the region near the left and right ends of the bowl surface 8 can be cleaned. Can be washed.

In this way, the cleaning water discharged from the second water discharge port 36 of the spreader 28 flows in a radial direction from the spreader 28 so as to spread widely so as not to cause a portion that cannot be cleaned on the surface of the bowl surface 8. The entire bowl surface 8 can be cleaned well while flowing down the surface 8. The washing water flows down the bowl surface 8 and is discharged from the discharge port 10, passes through the downstream drain trap pipe (not shown), and further flows toward the downstream drain pipe (not shown).
When water discharge at a predetermined instantaneous flow rate from the second water discharge port portion 36 of the spreader 28 is continued for a certain period of time, the control unit 32 closes the second on-off valve 26 to end the water discharge from the spreader 28, and the urine End the cleaning operation.

Next, the flow of the equipment protection cleaning operation by the urinal 1 according to the first embodiment of the present invention will be described.
The control unit 32 performs a facility protection cleaning operation separately from the urine cleaning operation.
The control unit 32 has passed a certain elapsed time since the previous equipment protection cleaning (for example, 2 hours have elapsed since the last equipment protection cleaning). In addition, the equipment protection cleaning operation is started when the use conditions such as the number of use of the urinal 1 reaching a certain number in a certain period are satisfied.

  In the equipment protection cleaning operation, the control unit 32 sends a control signal to the first on-off valve 22 to open the first on-off valve 22, and the cleaning water supplied from the main water supply pipe 14 is supplied from the first water supply pipe 16 to the first supply. Supply to the passage 38. At this time, the instantaneous flow rate of the cleaning water supplied to the first supply passage 38 is adjusted by the first flow rate adjusting device 20 to the above-described relatively high instantaneous flow rate range. As shown in FIGS. 1 and 11, the flow of cleaning water discharged from the first water discharge port 34 is indicated by an arrow B. Since the angle between the left and right first water outlet upper walls 34 a is formed to be relatively small, the wash water discharged from the first water outlet 34 is discharged into a relatively narrow range near the center of the bowl surface 8. Is done. Therefore, although the wash water discharged from the first water discharge port 34 is a wash water having a relatively high instantaneous flow rate, the wash water passes through both ends of the left end 8b and the right end 8c of the bowl surface 8. Without flowing out to the outside, it is possible to flow down while washing the area around the center of the bowl surface 8. As described above, the relatively high instantaneous flow rate of water discharged from the first water discharge port 34 flows into the discharge port 10. Wash water with a relatively high instantaneous flow rate passes through a drain trap pipe (not shown) downstream of the discharge port 10 and flows further toward the downstream drain pipe (not shown). Water flows while washing the drain trap pipe and drain pipe, removing urine in these pipes and removing foreign substances such as pubic hair, washing away urinary stones and foreign substances, suppressing bacterial growth, Adhesion (generation) can be suppressed.

Next, the function and effect of the urinal according to the first embodiment of the present invention described above will be described.
According to the urinal 1 according to the present embodiment described above, the bowl surface 8 has a line segment 16 connecting the left and right end portions (the left end portion 8b and the right end portion 8c) of the bowl surface 8 in a horizontal section across the spreader 28. The line segment l6 is formed so as to be positioned between the arc l7 having a diameter. Accordingly, the bowl surface 8 can spread the cleaning water discharged from the spreader 28 provided in the center of the upper region thereof in the direction of the left and right ends (the left end portion 8b and the right end portion 8c) of the bowl surface 8. . Therefore, the side surface portion of the bowl surface that has caused a portion that cannot be washed by water discharge in the conventional urinal is not provided, and in the urinal 1 of the present invention, the wash water reaches the vicinity of the left and right end portions of the bowl surface 8. Thus, the bowl surface 8 can be cleaned in a wider range than before, the portion of the bowl surface 8 that cannot be washed can be reduced, and the cleanability and cleanliness of the bowl surface 8 can be improved.

  Further, in the urinal 1 according to the present embodiment, the bowl surface 8 has a line segment l6 connecting the left and right end portions (the left end portion 8b and the right end portion 8c) of the bowl surface 8 in a horizontal section across the spreader 28; The angle α3 formed with the tangent L at the end of the bowl surface 8 is formed to be greater than 0 degree and less than or equal to 60 degrees. Accordingly, the bowl surface 8 can spread the cleaning water discharged from the spreader 28 provided in the center of the upper region thereof in the direction of the left and right ends (the left end portion 8b and the right end portion 8c) of the bowl surface 8. . Therefore, the side surface portion of the bowl surface that has caused a portion that cannot be washed by water discharge in the conventional urinal is not provided, and in the urinal 1 of the present invention, the wash water reaches the vicinity of the left and right end portions of the bowl surface 8. Thus, the bowl surface 8 can be cleaned in a wider range than before, the portion of the bowl surface 8 that cannot be washed can be reduced, and the cleanability and cleanliness of the bowl surface 8 can be improved.

  Further, in the urinal 1 according to the present embodiment, the bowl surface 8 has a line segment l6 connecting the left and right end portions (the left end portion 8b and the right end portion 8c) of the bowl surface 8 in a horizontal section across the spreader 28; The angle α3 formed with the tangent L at the end of the bowl surface 8 is formed to be greater than 0 degree and less than or equal to 45 degrees. Accordingly, the bowl surface 8 can spread the cleaning water discharged from the spreader 28 provided in the center of the upper region thereof in the direction of the left and right ends (the left end portion 8b and the right end portion 8c) of the bowl surface 8. . Therefore, the side surface portion of the bowl surface that has caused a portion that cannot be washed by water discharge in the conventional urinal is not provided, and in the urinal 1 of the present invention, the wash water reaches the vicinity of the left and right end portions of the bowl surface 8. Thus, the bowl surface 8 can be cleaned in a wider range than before, the portion of the bowl surface 8 that cannot be washed can be reduced, and the cleanability and cleanliness of the bowl surface 8 can be improved.

  Further, in the urinal 1 according to the present embodiment, the bowl surface 8 has the depth of the bowl surface 8 in the horizontal section across the spreader 28, that is, the left and right ends of the bowl surface 8 (the left end 8b and the right end 8c). ) To the center of the concave curved surface so that the depth of the position of the spreader 28 is in a range of 40 mm to 55 mm, the bowl surface 8 is provided in the center of the upper region. The washing water discharged from the spreader 28 can be easily spread to the left and right ends of the bowl surface 8.

  Further, in the urinal 1 according to the present embodiment, the bowl surface 8 has a single radius of curvature of the bowl surface 8 in a horizontal section across the spreader 28 in the range of 200 mm to 500 mm, and the spreader at the center of the concave curved surface. Since the depth of the position 28 is formed to be relatively shallow, the bowl surface 8 removes the cleaning water discharged from the spreader 28 provided in the center of the upper region thereof from the left and right ends of the bowl surface 8. It can be easily guided in the direction. Accordingly, there is no side portion that rises substantially vertically from the conventional bowl surface, and the bowl surface 8 is made to reach the vicinity of the left and right end portions of the bowl surface 8 of the urinal 1 of the present invention. Can be cleaned over a wide range, and the unwashable portion of the bowl surface 8 can be reduced.

Further, in the urinal 1 according to the present embodiment, the bowl surface 8 is formed such that the radius of curvature of the concave curved surface in the horizontal section continuously decreases from the upper end of the bowl surface 8 downward. The width of the bowl surface 8 gradually decreases as it goes downward, making it easier for the user to approach the position closer to the bowl surface 8 than in the past, and the user's urine hangs down on the floor and stains the floor. It becomes difficult to cause sagging and prevents the user from feeling uncomfortable.
In addition, the bowl surface 8 is formed such that the radius of curvature of the concave curved surface in the horizontal section continuously decreases from the upper end of the bowl surface downward, so that the user's local area can be separated from the surrounding others. It can be more difficult to see.

  Next, a urinal according to a second embodiment of the present invention will be described with reference to FIGS. The urinal apparatus of this embodiment is different from the first embodiment described above in terms of a shelf 142 and a spreader 128 formed on the bowl surface 8. Here, only different points of the second embodiment of the present invention from the first embodiment will be described, and the same parts are denoted by the same reference numerals and the description thereof will be omitted.

  16 is an overall perspective view showing a urinal according to a second embodiment of the present invention, FIG. 17 is a front view of the urinal of FIG. 16, and FIG. 18 is seen along the line XVII-XVII of FIG. FIG. 19 is a longitudinal sectional view, and FIG. 19 is a plan view of the urinal of FIG.

  In the urinal 101 according to the second embodiment of the present invention, the bowl surface 8 has a shelf 142 extending while descending from the left and right sides of the bowl surface 8 to the front side. The shelf 142 guides a part of the washing water spreading on the bowl surface 8 toward the front. The shelf 142 is formed on the lower side from the vicinity of the center of the bowl surface 8 in the height direction. For example, the shelf 142 extends from the straight portion 8j (or the side surface 8k) that forms the inward facing surfaces on both sides in the composite R region 8h to the tip 8f. It extends toward the lower side. The shelf 142 projects laterally inward from the bowl surface 8, and a flat surface is formed on the top surface so that water can easily flow on the shelf 142, and the cleaning water is guided along the shelf 142 to the tip 8 f. It can be done. Therefore, the shelf 142 allows the cleaning water to reach the front portion of the bowl surface 8 with a relatively small amount of cleaning water, thereby cleaning the bowl surface 8 more reliably than in the past.

Next, the automatic toilet cleaning unit 104 will be described with reference to FIGS. The automatic toilet cleaning unit 104 includes a main water supply pipe 14 for supplying cleaning water from a water supply source such as a water supply, a first water supply pipe (not shown) to which cleaning water is supplied from the main water supply pipe 14, and a first water supply pipe. A first flow rate adjusting device (not shown) provided on the first supply water pipe, a first on-off valve (not shown) attached to the first water supply pipe for supplying and stopping the water supply, and attached to the tip of the first water supply pipe 16. The first open / close valve and the like can be controlled based on the spreader 128 that is the water discharger, the human body detection sensor 30 that detects the presence or absence of the user, the detection signal from the human body detection sensor 30, a predetermined control program, and the like. And a control unit 32.
That is, in the automatic toilet cleaning unit 104 of the urinal 101 according to the second embodiment of the present invention, the flow path for supplying the cleaning water from the main water supply pipe 14 to the spreader 128 is one flow path (in other words, one system). Correspondingly, the supply path (supply flow path) provided in the spreader 128 may be one flow path.

The first flow rate adjusting device (not shown) is a constant flow valve capable of adjusting the cleaning water passing through the first water supply pipe (not shown) to an appropriate constant flow rate. The first on-off valve (not shown) is an electromagnetic valve that opens and closes the flow path of the first water supply pipe (not shown) by a control signal from the control unit 32.
The human body detection sensor 30 is an infrared sensor that detects the presence / absence of a user in front of the urinal 1 and the distance to the user. When the human body detection sensor 30 detects that the user has added a use and has moved away from the urinal 1 by a predetermined distance, an operation signal is transmitted from the control unit 32, and the first on-off valve (not shown) is transmitted by the operation signal. ) Is opened, and wash water is supplied from a first water supply pipe (not shown) to the spreader 128, so that the bowl surface 8 of the urinal 101 is washed.
The control unit 32 receives the detection result of the presence / absence of the user of the human body detection sensor 30 and performs control such as opening and closing a first on-off valve (not shown), and controls preset equipment protection cleaning and the like. be able to.

As shown in FIG. 16 and the like, also in the automatic toilet cleaning unit 104 of the urinal 101 according to the second embodiment of the present invention, the spreader 128 is attached to the front surface 7 of the storage chamber 6 of the front portion 8a of the urinal body 102. ing. The spreader 128 is provided substantially at the center of the upper region in the bowl surface 8 and discharges the cleaning water so as to spread from the central region of the bowl surface 8 to the left and right end portions.
The spreader 128 has a first water discharge port portion 144 that can discharge the wash water from the central region of the bowl surface 8 toward both left and right ends, and a first supply passage that supplies the wash water to the first water discharge port portion 144. (Not shown). In the spreader 128 in the urinal 101 according to the second embodiment of the present invention, the supply passage (supply flow passage) provided in the spreader 128 may be one flow passage, and the wash water is discharged to the bowl surface 8. You may have only the 1st spout part 144. FIG.

As described above, the spreader 128 in the urinal 101 according to the second embodiment of the present invention discharges the washing water so as to spread from the central region of the bowl surface 8 to the left and right end portions. In FIG. 16, the flow of cleaning water discharged from the spreader 128 is indicated by an arrow A. The wash water discharged from the spreader 128 can be guided by the bowl surface 8 from the center of the bowl surface 8 to the left and right ends. Therefore, the bowl surface 8 can be cleaned in a wider range than before by allowing the cleaning water to reach the vicinity of the left and right ends of the bowl surface 8 of the urinal 1 of the present invention.
In addition, a part of the washing water discharged from the spreader 128 to the left and right can be caused to flow along the shelf 142 while being guided toward the front of the bowl surface 8, up to the front portion of the bowl surface 8. The bowl surface 8 can be washed in a wider range than before by allowing the washing water to reach, the portion of the bowl surface 8 that cannot be washed can be reduced, and the washability and cleanliness of the bowl surface 8 can be improved. .

Next, the operational effects of the urinal according to the second embodiment of the present invention described above will be described.
According to the above-described urinal 101 according to the second embodiment of the present invention, the bowl surface 8 is configured so that the wash water discharged from the spreader 128 provided in the center of the upper region is discharged from the left and right ends (left side) of the bowl surface 8. The end portion 8b and the right end portion 8c) can be expanded. Therefore, the side surface portion of the bowl surface that has caused a portion that cannot be washed by water discharge in the conventional urinal is not provided, and in the urinal 101 of the present invention, the wash water reaches the vicinity of the left and right ends of the bowl surface 8. Thus, the bowl surface 8 can be cleaned in a wider range than before, the portion of the bowl surface 8 that cannot be washed can be reduced, and the cleanability and cleanliness of the bowl surface 8 can be improved.

  Further, in the urinal 101 according to the second embodiment of the present invention, the shelf 142 removes a part of the washing water flowing down near the left and right sides (the left end 8b and the right end 8c) of the bowl surface 8 from the bowl. The bowl surface 8 can be guided toward the front side of the surface 8, and the bowl surface 8 can be washed more extensively than before by allowing the washing water to reach the tip 8 f side portion of the bowl surface 8, so that the bowl surface 8 cannot be washed. A part can be reduced and the washability and cleanliness of the bowl surface 8 can be improved.

  Further, in the urinal 101 according to the second embodiment of the present invention, the shelf 142 removes a part of the washing water flowing down near the left and right sides (the left end 8b and the right end 8c) of the bowl surface 8 from the bowl. The surface 8 can be guided forward from the center in the height direction, and the bowl surface 8 can be cleaned in a wider range than before by allowing the cleaning water to reach the tip 8f side of the bowl surface 8 The portion of the bowl surface 8 that cannot be washed can be reduced, and the washability and cleanliness of the bowl surface 8 can be improved.

DESCRIPTION OF SYMBOLS 1 Urinal 2 Urinal body 3 Lid 4 Automatic toilet cleaning unit 6 Storage chamber 7 Front surface 8 Bowl surface 8a Front surface portion 8b Left end portion 8c Right end portion 8d Upper end 8e Central portion 8f Front end 8g Region 8h Region 8i Arc-shaped portion 8j Straight line Portion 8k Side surface portion 9 Wall mounting surface 10 Discharge port 11a Bowl portion left side surface 11b Bowl portion right side surface 12 Countersink plate 14 Main water supply pipe 16 Water supply pipe 18 Water supply pipe 20 Flow rate adjustment device 22 On-off valve 24 Flow rate adjustment device 26 On-off valve 28 Spreader 30 Human body detection sensor 32 Control unit 34 Water outlet 34a Water outlet upper wall 34b Water outlet front wall 34c Water outlet rear wall 34d Open passage 36 Water outlet 36a Water outlet upper wall 36b Water outlet front wall 36c Water outlet rear wall 36d Opening passage 36e Water outlet hanging wall 38 Supply passage 40 Supply passage 42 Shelf A Arrow A1 Angle A2 Angle B Arrow D Depth L Tangent L1 Distance L2 distance L3 distance L4 distance l1 perpendicular l2 perpendicular l3 imaginary line l4 imaginary line l5 imaginary line R1 radius of curvature R2 of curvature radius α1 angle α2 angle α3 angle α4 angle α5 angle α6 angle

Claims (7)

A urinal for washing the bowl surface with washing water,
The bowl surface receiving urine in front of the urinal;
A water discharging device that is provided at the center of the upper region in the bowl surface and discharges the cleaning water so as to spread toward the left and right ends of the bowl surface;
The bowl surface is formed of a concave curved surface continuously extending to the left and right end portions in a horizontal cross section across the water discharge device, and further, a line segment connecting the left and right end portions and an arc having a diameter of the line segment And is located between
The bowl surface is a urinal formed such that a radius of curvature of a concave curved surface in a horizontal section continuously decreases from an upper end of the bowl surface downward.   The angle formed by a line segment connecting the left and right ends of the bowl surface and a tangent at the end of the bowl surface is formed to be greater than 0 degree and less than or equal to 60 degrees. The urinal described.   The angle formed by a line segment connecting the left and right ends of the bowl surface and a tangent at the end of the bowl surface is formed so as to be 10 degrees or more and 45 degrees or less. Urinal as described in.   The urinal according to any one of claims 1 to 3, wherein the bowl surface is formed such that a depth of the bowl surface in a horizontal section across the water discharging device is in a range of 40 mm to 55 mm.   The bowl surface has a shelf portion that extends while descending from the left and right sides of the bowl surface to the front side, and the shelf portion guides a part of the washing water on the bowl surface to the front side. The urinal according to any one of claims 1 to 4.   The urinal according to claim 5, wherein the shelf is formed on a lower side than the vicinity of the center of the bowl surface in the height direction.   The urinal according to any one of claims 1 to 6, wherein the bowl surface is formed such that a single radius of curvature of the bowl surface in a horizontal section across the water discharging device is in a range of 200 mm to 500 mm.

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