Sanitary Cleaning Equipment

Abstract

To provide a sanitary washing device capable of attaching water to a wider range of a bowl in a short time, and supplying a sufficient amount of water to an area of the bowl where dirt easily adheres to.SOLUTION: A sanitary washing device provided over a toilet bowl having a bowl comprises: a casing; and a nozzle for washing a human body private part, which can move back and forth between a housed position where the nozzle is housed in the casing and an advanced position where the nozzle advances from the casing. The nozzle has a first ejection port that ejects water forward and downward and a second ejection port that ejects water backward from the first ejection port. An ejection angle in a front-rear direction of the first ejection port is different from the ejection angle in the front-rear direction of the second ejection port.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] SUMMARY OF THE DISCLOSURE Aspects of the present invention generally relate to sanitary washing devices. [Background technology]

[0002] It is known that spraying water toward the bowl of a toilet before and after use can prevent dirt from adhering to the bowl and can remove dirt that has adhered to the bowl. In Patent Document 1, a nozzle for washing the human body parts of a sanitary washing device is provided with an outlet for spraying water toward the bowl.

[0003] In order to prevent dirt from sticking to a wider area of ​​the bowl or to remove dirt that has stuck to the bowl, it is necessary to apply water to a wider area of ​​the bowl. However, if water is applied to a wider area of ​​the bowl, there is a risk that a sufficient amount of water will not reach areas where dirt is likely to stick, and it will not be possible to sufficiently prevent dirt from sticking to the bowl or to sufficiently remove dirt that has stuck to the bowl.

[0004] Furthermore, if water is applied to a wider area of ​​the bowl, it will take longer for the water to spray from the nozzle, and for example, the water may not finish spraying before the user sits down, which could result in the water spraying from the nozzle onto the user. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2015-101942 A Summary of the Invention [Problem to be solved by the invention]

[0006] The present invention was made based on the recognition of such problems, and aims to provide a sanitary cleaning device that can apply water to a wider area of ​​a bowl in a short period of time and can deliver a sufficient amount of water to areas of the bowl that are prone to becoming dirty. [Means for solving the problem]

[0007] The first invention is a sanitary washing device that is installed on a toilet bowl having a bowl, comprising: a casing; and a nozzle for washing human body parts, the nozzle being movable in a front-to-back direction between a stored position stored in the casing and an advanced position advanced from the casing, the nozzle having a first nozzle that sprays water downward and forward, and a second nozzle that sprays water further rearward than the first nozzle, and the sanitary washing device is characterized in that the spray angle in the front-to-back direction of the first nozzle is different from the spray angle in the front-to-back direction of the second nozzle.

[0008] According to this sanitary washing device, by providing two jets (first jet and second jet) that jet water in different directions in the front-to-rear direction, water can be applied to a wider area of ​​the bowl in a shorter time. Also, by making the jet angle of the first jet different from the jet angle of the second jet, for example, it is possible to reduce the jet angle of one jet that jets water to areas where more water is desired (areas where dirt easily accumulates) and increase the jet angle of the other jet where the widest possible jet range is desired. This allows water to be applied to a wider area of ​​the bowl in a shorter time and allows a sufficient amount of water to reach areas of the bowl where dirt easily accumulates.

[0009] A second invention is the sanitary washing device according to the first invention, characterized in that a jetting angle in the front-to-rear direction of the first jetting port is greater than a jetting angle in the front-to-rear direction of the second jetting port.

[0010] According to this sanitary washing device, by relatively increasing the front-to-rear jetting angle of the first jet, which jets water downward and forward, water can be applied to a wider area on the front side of the bowl in a short time. Also, by relatively decreasing the front-to-rear jetting angle of the second jet, which jets water further rearward than the first jet, a sufficient amount of water can be delivered to the pinpoint area on the rear side of the bowl where the user's feces are likely to adhere (i.e., where dirt is likely to adhere). This effectively prevents feces from adhering to the rear side of the bowl and makes it easier to remove feces that has adhered to the rear side of the bowl.

[0011] A third invention is a sanitary washing device according to the first or second invention, characterized in that a jet angle in the left-right direction of the first jet port is greater than a jet angle in the left-right direction of the second jet port.

[0012] According to this sanitary washing device, by relatively increasing the left-right jetting angle of the first jet, which jets water downward and forward, water can be applied to a wider area on the front side of the bowl in a short time. Also, by relatively decreasing the left-right jetting angle of the second jet, which jets water further rearward than the first jet, a sufficient amount of water can be delivered to the pinpoint area on the rear side of the bowl where the user's feces are likely to adhere (i.e., where dirt is likely to adhere). This effectively prevents feces from adhering to the rear side of the bowl and makes it easier to remove feces that has adhered to the rear side of the bowl.

[0013] A fourth invention is a sanitary washing device according to any one of the first to third inventions, characterized in that the bowl has a drainage section to which a drain pipe is connected, a front section located forward of the drainage section, and a rear section located rearward of the drainage section, and water sprayed from the first outlet of the nozzle in the stored position adheres to the front and rear sections of the bowl.

[0014] With this sanitary cleaning device, by setting the front-to-rear spray angle of the first spray outlet of the nozzle in the stored position so that water sprayed from the first spray outlet lands on the front and rear of the bowl, water can be applied to a wider area of ​​the bowl in a shorter period of time. Effect of the Invention

[0015] According to an aspect of the present invention, a sanitary cleaning device is provided that can apply water to a wider area of ​​a bowl in a short period of time and can deliver a sufficient amount of water to areas of the bowl that are prone to becoming dirty. [Brief description of the drawings]

[0016] [Figure 1] 1 is a perspective view showing a toilet apparatus equipped with a sanitary washing device according to an embodiment. [Diagram 2] 1 is a block diagram showing a schematic configuration of a main part of a sanitary washing device according to an embodiment; [Diagram 3] 3(a) and 3(b) are perspective views that typically show a nozzle of a sanitary washing device according to an embodiment. [Figure 4] FIG. 2 is a front view illustrating a nozzle of the sanitary washing device according to the embodiment. [Diagram 5] 5(a) and 5(b) are cross-sectional views that typically show the periphery of a nozzle of a sanitary washing device according to an embodiment. [Figure 6] FIG. 6(a) and FIG. 6(b) are photographs showing the shape of the water jetted from the first nozzle and the shape of the water jetted from the second nozzle. [Figure 7] 4 is a cross-sectional view that illustrates a typical adhesion range of water ejected from a first ejection nozzle and an adhesion range of water ejected from a second ejection nozzle. FIG. [Figure 8] 4 is a plan view that illustrates a typical range of adhesion of water ejected from a first ejection nozzle and a range of adhesion of water ejected from a second ejection nozzle. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, the same components are designated by the same reference numerals and detailed description thereof will be omitted as appropriate. FIG. 1 is a perspective view showing a toilet apparatus equipped with a sanitary washing device according to an embodiment. As shown in Fig. 1, the toilet device 900 includes a seated toilet bowl (toilet bowl) 800 and a sanitary washing device 100 installed above it. The sanitary washing device 100 includes a casing 400, a toilet seat 200, and a toilet lid 300. The toilet seat 200 and the toilet lid 300 are each pivotally supported on the casing 400 so as to be able to open and close freely. The toilet bowl 800 includes a bowl 801.

[0018] In the following description of the embodiment, the terms "upper," "lower," "front," "rear," "right side," and "left side" are used; these directions are as seen by a user sitting on the toilet seat 200, as shown in FIG. 1.

[0019] The inside of the casing 400 contains a private parts washing function unit for washing private parts such as the buttocks of a user sitting on the toilet seat 200. The private parts washing function unit includes a nozzle 473. The nozzle 473 can advance and retreat between a stored position in which it is stored in the casing 400 and an advanced position in which it advances from the casing 400. The nozzle 473 advances in a linear trajectory toward the center of a bowl 801 located at the front and lower part of the casing 400, and retreats in a linear trajectory toward the inside of the casing 400 located at the rear and upper part of the bowl 801. Note that the sanitary washing device 100 shown in FIG. 1 shows a state in which the nozzle 473 is in the advanced position.

[0020] The sanitary washing device 100 is provided with a seating detection sensor 404 (see FIG. 2) that detects a user sitting on the toilet seat 200. When the seating detection sensor 404 detects a user sitting on the toilet seat 200, the nozzle 473 can be advanced to the advanced position or retracted to the stored position when the user operates an operation unit 500 (see FIG. 2), such as a remote control.

[0021] The nozzle 473, in a state of advancing from the casing 400, discharges water (cleaning water) toward the human body private parts to clean the human body private parts. The nozzle 473 is provided at its tip with a buttocks cleansing water outlet 474a, a soft cleansing water outlet 474b, and a bidet cleansing water outlet 474c. The nozzle 473 can spray water from the buttocks cleansing water outlet 474a or the soft cleansing water outlet 474b provided at its tip to clean the "buttocks" of a user sitting on the toilet seat 200. Alternatively, the nozzle 473 can spray water from the bidet cleansing water outlet 474c provided at its tip to clean the female private parts of a woman sitting on the toilet seat 200. In this specification, the term "water" includes not only cold water but also heated hot water.

[0022] The "buttocks" cleaning mode includes, for example, a "buttocks cleaning" and a "soft cleaning" that cleans more gently with a softer water flow than the "buttocks cleaning". The nozzle 473 can execute, for example, the "buttocks cleaning", the "soft cleaning", and the "bidet cleaning".

[0023] 1, the bidet cleansing water outlet 474c is provided closer to the tip of the nozzle 473 than the soft cleansing water outlet 474b, and the soft cleansing water outlet 474b is provided closer to the tip of the nozzle 473 than the rear cleansing water outlet 474a, but the installation positions of the rear cleansing water outlet 474a, the soft cleansing water outlet 474b, and the bidet cleansing water outlet 474c are not limited to this. Also, in the nozzle 473 shown in FIG. 1, three water outlets are provided, but for example, the soft cleansing water outlet 474b may be omitted, or four or more water outlets may be provided.

[0024] FIG. 2 is a block diagram showing a schematic configuration of a main part of the sanitary washing device according to the embodiment. Figure 2 shows the main components of the waterway system and electrical system. 2, the sanitary washing device 100 has a water conveying section 20. The water conveying section 20 has a pipe 20a that leads from a water supply source 10, such as a water main or a water tank, to a nozzle 473. The water conveying section 20 conveys water supplied from the water supply source 10 to the nozzle 473 through the pipe 20a. The pipe 20a is formed by, for example, each part, such as a solenoid valve 431, a heat exchanger unit 440, and a flow path switching section 472, which will be described below, and a plurality of pipes that connect these each part.

[0025] A solenoid valve 431 is provided upstream of the water conveying section 20. The solenoid valve 431 is an openable and closable solenoid valve, and controls the supply of water based on a command from a control section 405 provided inside the casing 400. In other words, the solenoid valve 431 opens and closes the pipe 20a. By opening the solenoid valve 431, water supplied from the water supply source 10 flows into the pipe 20a.

[0026] A pressure regulating valve 432 is provided downstream of the solenoid valve 431. When the water supply pressure is high, the pressure regulating valve 432 adjusts the pressure in the pipe 20a to a predetermined pressure range. A check valve 433 is provided downstream of the pressure regulating valve 432. The check valve 433 prevents water from flowing back upstream of the check valve 433 when, for example, the pressure in the pipe 20a drops.

[0027] A heat exchanger unit 440 (heating section) is provided downstream of the check valve 433. The heat exchanger unit 440 has a heater and heats the water supplied from the water supply source 10 to, for example, a specified temperature. That is, the heat exchanger unit 440 generates hot water.

[0028] The heat exchanger unit 440 is an instantaneous heating type (instantaneous type) heat exchanger using, for example, a ceramic heater. The instantaneous heating type heat exchanger can heat water to a specified temperature in a short time compared to a hot water storage heating type heat exchanger using a hot water storage tank. The heat exchanger unit 440 is not limited to an instantaneous heating type heat exchanger, and may be a hot water storage heating type heat exchanger. The heating section is not limited to a heat exchanger, and may be one using another heating method, such as one using microwave heating.

[0029] The heat exchanger unit 440 is connected to the control unit 405. The control unit 405 controls the heat exchanger unit 440 in response to an operation of the operation unit 500 by a user, for example, to raise the temperature of the water to a temperature set by the operation unit 500.

[0030] A flow rate sensor 442 is provided downstream of the heat exchanger unit 440. The flow rate sensor 442 detects the flow rate of water discharged from the heat exchanger unit 440. That is, the flow rate sensor 442 detects the flow rate of water flowing through the pipe 20a. The flow rate sensor 442 is connected to the control unit 405. The flow rate sensor 442 inputs the detection result of the flow rate to the control unit 405.

[0031] A vacuum breaker (VB) 452 is provided downstream of the flow sensor 442. The vacuum breaker 452 has, for example, a flow path for flowing water, an air intake port for taking air into the flow path, and a valve mechanism for opening and closing the air intake port. For example, the valve mechanism closes the air intake port when water is flowing in the flow path, and opens the air intake port when the water flow stops to take air into the flow path. That is, the vacuum breaker 452 takes air into the pipe 20a when there is no water flow in the water guide section 20. For example, a float valve is used as the valve mechanism.

[0032] Vacuum breaker 452 takes in air into pipe 20a as described above, thereby, for example, facilitating drainage of the portion of pipe 20a downstream of vacuum breaker 452. Vacuum breaker 452 promotes drainage of nozzle 473, for example. In this manner, vacuum breaker 452 drains water from nozzle 473 and takes in air into nozzle 473, thereby preventing, for example, cleaning water from nozzle 473 or wastewater accumulated in bowl 801 from flowing back toward water supply source 10 (clean water).

[0033] An electrolytic cell unit 450 is provided downstream of the vacuum breaker 452. The electrolytic cell unit 450 generates a liquid containing hypochlorous acid (functional water) from the tap water by electrolyzing the tap water flowing therein. The electrolytic cell unit 450 is connected to the control unit 405. The electrolytic cell unit 450 generates functional water based on the control by the control unit 405.

[0034] The functional water generated in the electrolytic cell unit 450 may be a solution containing metal ions such as silver ions and copper ions. Alternatively, the functional water generated in the electrolytic cell unit 450 may be a solution containing electrolytic chlorine and ozone. Alternatively, the functional water generated in the electrolytic cell unit 450 may be acidic water or alkaline water. A flow rate adjustment unit 471 is provided downstream of the electrolytic cell unit 450. The flow rate adjustment unit 471 adjusts the water pressure (flow rate). A flow path switching unit 472 is provided downstream of the flow rate adjustment unit 471. The flow path switching unit 472 opens and closes or switches the water supply to the nozzle 473 and the nozzle cleaning unit 478. The flow rate adjustment unit 471 and the flow path switching unit 472 may be provided as one unit. The flow rate adjustment unit 471 and the flow path switching unit 472 are connected to the control unit 405. The operations of the flow rate adjustment unit 471 and the flow path switching unit 472 are controlled by the control unit 405.

[0035] A nozzle 473 and a nozzle cleaning unit 478 are provided downstream of the flow path switching unit 472. The nozzle 473 receives a driving force from a nozzle driving unit 476 and advances into and retreats from within the bowl 801 of the toilet 800.

[0036] The nozzle cleaning unit 478 cleans the outer peripheral surface (body) of the nozzle 473, for example, by spraying functional water or water from the water discharge unit.

[0037] In addition, downstream of the flow path switching unit 472, there are provided a posterior cleansing flow path 21, a soft cleansing flow path 22, and a bidet cleansing flow path 23, which supply water supplied from the water supply source 10 via the water guide unit 20 and functional water generated in the electrolytic cell unit 450 to the nozzle 473. The posterior cleansing flow path 21 connects the flow path switching unit 472 and the posterior cleansing water outlet 474a. The soft cleansing flow path 22 connects the flow path switching unit 472 and the soft cleansing water outlet 474b. The bidet cleansing flow path 23 connects the flow path switching unit 472 and the bidet cleansing water outlet 474c.

[0038] Further, downstream of the flow path switching section 472, there are provided a surface cleaning flow path 24, a first bowl jetting flow path 25, and a second bowl jetting flow path 26. The surface cleaning flow path 24 guides the water supplied from the water supply source 10 via the water guide section 20 and the functional water generated in the electrolytic cell unit 450 to the water discharge section of the nozzle cleaning section 478. The first bowl jetting flow path 25 and the second bowl jetting flow path 26 guide the water supplied from the water supply source 10 via the water guide section 20 and the functional water generated in the electrolytic cell unit 450 to the jetting outlet 479 (first jetting outlet 479a and second jetting outlet 479b described later) of the nozzle 473. The water or functional water supplied to the jetting outlet 479 is jetted from the jetting outlet 479 toward the bowl 801. When the second jetting outlet 479b is not provided, the second bowl jetting flow path 26 can be omitted.

[0039] The control unit 405 controls the flow path switching unit 472 to switch between opening and closing of each of the flow paths, i.e., the posterior cleansing flow path 21, the soft cleansing flow path 22, the bidet cleansing flow path 23, the surface cleansing flow path 24, the first bowl jetting flow path 25, and the second bowl jetting flow path 26. In this way, the flow path switching unit 472 switches between a state in which each of the multiple water outlets, such as the posterior cleansing outlet 474a, the soft cleansing outlet 474b, the bidet cleansing outlet 474c, the nozzle cleaning unit 478, and the jetting port 479, is connected to the pipe 20a and a state in which it is not connected to the pipe 20a.

[0040] The control unit 405 is supplied with power from the power supply circuit 401, and controls the operations of the solenoid valve 431, the heat exchanger unit 440, the electrolytic cell unit 450, the flow rate adjustment unit 471, the flow path switching unit 472, the nozzle driving unit 476, etc., based on signals from the seating detection sensor 404, the flow rate sensor 442, the operation unit 500, etc. In this way, the control unit 405 controls the operation of the nozzle 473.

[0041] In addition, the casing 400 may be appropriately provided with various mechanisms such as a "warm air drying function" that blows warm air toward the "buttocks" of a user sitting on the toilet seat 200 to dry them, a "deodorizing unit" and an "indoor heating unit". In this case, an exhaust port 407 from the deodorizing unit and an exhaust port 408 from the indoor heating unit are appropriately provided on the side of the casing 400. However, in the present invention, it is not necessarily necessary to provide a sanitary washing function unit or other additional function units.

[0042] 3(a) and 3(b) are perspective views that typically show a nozzle of a sanitary washing device according to an embodiment. FIG. 4 is a front view showing a schematic view of a nozzle of a sanitary washing device according to an embodiment. 5(a) and 5(b) are cross-sectional views that typically show the periphery of a nozzle of a sanitary washing device according to an embodiment. 5(a) and 5(b) show the periphery of the nozzle 473 in a cross section taken along line A1-A2 shown in FIG.

[0043] As shown in Figures 3(a), 3(b), 4, 5(a), and 5(b), the nozzle 473 has, for example, a nozzle head 473a and a nozzle cover 473b. The nozzle head 473a is housed inside the nozzle cover 473b. In other words, the nozzle cover 473b covers the nozzle head 473a.

[0044] The nozzle head 473a is provided with water outlets 474 (bottom cleansing water outlet 474a, soft cleansing water outlet 474b, and bidet cleansing water outlet 474c) that discharge water toward the human body parts, and outlets 479 (first outlet 479a and second outlet 479b) that jet water toward the bowl 801. The nozzle head 473a is connected to the bottom cleansing flow path 21, the soft cleansing flow path 22, the bidet cleansing flow path 23, the first bowl jetting flow path 25, and the second bowl jetting flow path 26.

[0045] The nozzle cover 473b is provided with a hole 475a communicating with the water outlet 474 (the rear cleansing water outlet 474a, the soft cleansing water outlet 474b, and the bidet cleansing water outlet 474c) and a cutout 475b exposing the outlet 479 (the first outlet 479a and the second outlet 479b). As shown in FIG. 4, the cutout 475b is provided below the center CL1 of the front end 477 of the nozzle 473 in the up-down direction, for example.

[0046] In this way, by providing the cutout portion 475b, which exposes the first jetting port 479a and the second jetting port 479b, below the center CL1 in the up-down direction of the front end portion 477 of the nozzle 473, the cutout portion 475b can be made less noticeable when viewed from the user. This can improve the design.

[0047] Hereinafter, the first jet nozzle 479a and the second jet nozzle 479b will be described in detail. Fig. 5(a) shows a state in which water is being sprayed from first spray nozzle 479a, and Fig. 5(b) shows a state in which water is being sprayed from second spray nozzle 479b.

[0048] The first and second nozzles 479a and 479b eject mist-like water, for example. The particle size of the water ejected from the first and second nozzles 479a and 479b is smaller than that of the water ejected from the rear cleansing water outlet 474a, the soft cleansing water outlet 474b, and the bidet cleansing water outlet 474c, for example. The particle size of the water ejected from the first and second nozzles 479a and 479b is, for example, about 400 μm.

[0049] As shown in FIG. 5(a), the first jetting nozzle 479a opens toward the front and downward. The first jetting nozzle 479a jets water toward the front and downward. More specifically, the first jetting nozzle 479a jets water at a first angle θ1 with respect to the horizontal plane HP. The first angle θ1 is an angle between a first jetting direction D1 of the water jetted from the first jetting nozzle 479a and the horizontal plane HP. The first jetting direction D1 can be represented, for example, by the center line of the jetting range R1 of the water jetted from the first jetting nozzle 479a. The first jetting direction D1 may be represented, for example, by a normal line of the first jetting nozzle 479a.

[0050] The first angle θ1 is, for example, larger than the advancing angle θ3 of the nozzle 473 with respect to the horizontal plane HP. The advancing angle θ3 is the angle between the advancing direction ED of the nozzle 473 and the horizontal plane HP. In other words, the first ejection port 479a ejects water, for example, further rearward than the advancing direction ED of the nozzle 473. The first angle θ1 is an acute angle. The first angle θ1 is, for example, not less than 38 degrees and not more than 72 degrees.

[0051] As shown in FIG. 5(b), the second outlet 479b opens further rearward than the first outlet 479a. The second outlet 479b ejects water further rearward than the first outlet 479a. More specifically, the second outlet 479b ejects water at a second angle θ2 with respect to the horizontal plane HP. The second angle θ2 is an angle between a second ejection direction D2 of the water ejected from the second outlet 479b and the horizontal plane HP. The second ejection direction D2 can be represented, for example, by the center line of the ejection range R2 of the water ejected from the second outlet 479b. The second ejection direction D2 may be represented, for example, by a normal line of the second outlet 479b.

[0052] The second angle θ2 is, for example, greater than the advance angle θ3 of the nozzle 473 with respect to the horizontal plane HP. In other words, the second ejection port 479b ejects water, for example, further rearward than the advancement direction ED of the nozzle 473. The second angle θ2 is greater than the first angle θ1. In other words, the second ejection port 479b ejects water further rearward than the first ejection port 479a. The second angle θ2 is, for example, greater than 72 degrees and less than 90 degrees.

[0053] In this way, by providing two outlets 479 (first outlet 479a and second outlet 479b) that spray water in different directions in the front-to-rear direction, water can be applied to a wider range of bowl 801 in a short time. More specifically, water can be applied to the front side of bowl 801 by first outlet 479a that sprays water downward and forward, and water can be applied to the rear side of bowl 801 by second outlet 479b that sprays water further rearward than first outlet 479a. This allows water sprayed from second outlet 479b to be applied to the rear side of bowl 801 to which water sprayed from first outlet 479a is less likely to adhere, and water can be applied to a wider range of bowl 801 in a short time.

[0054] 4, the second ejection port 479b is provided on the side of the first ejection port 479a. More specifically, the second ejection port 479b does not overlap with the first ejection port 479a in the up-down direction. At least a portion of the second ejection port 479b overlaps with the first ejection port 479a in the left-right direction, for example. Also, for example, the first ejection port 479a is located on one side (the right side in this example) of the center CL2 in the left-right direction of the front end portion 477 of the nozzle 473, and the second ejection port 479b is located on the other side (the left side in this example) of the center CL2 in the left-right direction.

[0055] Alternatively, the first ejection port 479a may be located to the left of the center CL2 in the left-right direction of the front end portion 477 of the nozzle 473, and the second ejection port 479b may be located to the right of the center CL2 in the left-right direction. In other words, the left-right positions of the first ejection port 479a and the second ejection port 479b may be reversed.

[0056] In this way, by providing second outlet 479b to the side of first outlet 479a, even when the direction of water ejection from first outlet 479a and the direction of water ejection from second outlet 479b are different, it is possible to prevent water ejected from one outlet 479 (e.g., second outlet 479b) from hitting the other outlet 479 (e.g., first outlet 479a). This improves the degree of freedom in designing the direction of water ejection from each outlet 479. Therefore, water can be ejected further forward from first outlet 479a, making it easier for water to adhere to the front side of bowl 801.

[0057] 4, the first ejection port 479a is located, for example, above the second ejection port 479b. More specifically, the center C1 of the first ejection port 479a is located above the center C2 of the second ejection port 479b.

[0058] In this way, by positioning the center C1 of the first nozzle 479a higher than the center C2 of the second nozzle 479b, it is possible to more reliably prevent water sprayed from one nozzle 479 (e.g., the second nozzle 479b) from hitting the other nozzle 479 (e.g., the first nozzle 479a).

[0059] 4, the first ejection port 479a and the second ejection port 479b are provided, for example, at the front end portion 477 of the nozzle 473. More specifically, the first ejection port 479a and the second ejection port 479b are provided, for example, at the front end portion 477 of the nozzle 473, below the center CL1 in the up-down direction.

[0060] In this way, by providing first outlet 479a and second outlet 479b at front end 477 of nozzle 473, water can be ejected further forward from first outlet 479a. This makes it easier for water to adhere to the front side of bowl 801.

[0061] 5(a) and 5(b), the jetting angle φ1 in the front-rear direction of the first jetting nozzle 479a is different from the jetting angle φ2 in the front-rear direction of the second jetting nozzle 479b. Here, the "jetting angle" is not the jetting angle immediately after the jetting of water from the jetting nozzle starts or immediately before the jetting of water stops, but the jetting angle when water is being stably jetted from the jetting nozzle. The "jetting angle" is, for example, the maximum angle at which water is jetted from the jetting nozzle.

[0062] In this way, by making the jet angle φ1 in the front-rear direction of first jet port 479a different from the jet angle φ2 in the front-rear direction of second jet port 479b, for example, the jet angle of one jet port 479 that jets water to a place where more water is desired (a place where dirt easily adheres) can be made small, and the jet angle of the other jet port 479 that is desired to have as wide a jet range as possible can be made large. This allows water to adhere to a wider range of bowl 801 in a short time, and allows a sufficient amount of water to reach places of bowl 801 where dirt easily adheres.

[0063] More specifically, the ejection angle φ1 of the first ejection port 479a in the front-rear direction is greater than the ejection angle φ2 of the second ejection port 479b in the front-rear direction, for example. The ejection angle φ1 is, for example, not less than 115 degrees and not more than 135 degrees. The ejection angle φ2 is, for example, not less than 90 degrees and not more than 110 degrees.

[0064] In this way, by relatively increasing the jetting angle φ1 in the front-to-rear direction of first jetting nozzle 479a, which jets water toward the front and downward, water can be applied to a wider area on the front side of bowl 801 in a short time. Also, by relatively decreasing the jetting angle φ2 in the front-to-rear direction of second jetting nozzle 479b, which jets water toward the rear more than first jetting nozzle 479a, a sufficient amount of water can be delivered to a pinpoint location on the rear side of bowl 801 where feces from the user are likely to adhere (i.e., where dirt is likely to adhere). This makes it possible to effectively prevent feces from adhering to the rear side of bowl 801 and to make it easier to remove feces that have adhered to the rear side of bowl 801.

[0065] For example, when dirt is easily attached to the front side of bowl 801 or when it is desired to ensure that a sufficient amount of water reaches the front side of bowl 801, the front-to-rear ejection angle φ1 of first ejection nozzle 479a may be made smaller than the front-to-rear ejection angle φ2 of second ejection nozzle 479b.

[0066] 4, the ejection angle φ3 of the first ejection port 479a in the left-right direction is greater than the ejection angle φ4 of the second ejection port 479b in the left-right direction, for example. The ejection angle φ3 is, for example, not less than 115 degrees and not more than 135 degrees. The ejection angle φ4 is, for example, not less than 90 degrees and not more than 110 degrees.

[0067] In this way, by relatively increasing the left-right jetting angle φ3 of first jetting nozzle 479a, which jets water downward and forward, water can be applied to a wider area on the front side of bowl 801 in a short time. Also, by relatively decreasing the left-right jetting angle φ4 of second jetting nozzle 479b, which jets water further rearward than first jetting nozzle 479a, a sufficient amount of water can be delivered to a pinpoint location on the rear side of bowl 801 where feces from the user are likely to adhere (i.e., where dirt is likely to adhere). This can effectively prevent feces from adhering to the rear side of bowl 801, and can make feces adhering to the rear side of bowl 801 easier to remove.

[0068] Note that the horizontal jet angle φ3 of first jet port 479a may be the same as the horizontal jet angle φ4 of second jet port 479b, for example. Also, for example, when dirt is likely to adhere to the front side of bowl 801 or when it is desired to ensure that a sufficient amount of water reaches the front side of bowl 801, the horizontal jet angle φ3 of first jet port 479a may be smaller than the horizontal jet angle φ4 of second jet port 479b.

[0069] The first and second outlets 479a and 479b eject water in, for example, a cone shape. Therefore, the ejection angle φ3 in the left-right direction of the first outlet 479a is equal to, for example, the ejection angle φ1 in the front-rear direction of the first outlet 479a. In addition, the ejection angle φ4 in the left-right direction of the second outlet 479b is equal to, for example, the ejection angle φ2 in the front-rear direction of the second outlet 479b.

[0070] For example, by making the aperture of first ejection port 479a and the aperture of second ejection port 479b different, ejection angle φ1 can be made different from ejection angle φ2, or ejection angle φ3 can be made different from ejection angle φ4. More specifically, for example, by making the aperture of first ejection port 479a larger than the aperture of second ejection port 479b, ejection angle φ1 can be made larger than ejection angle φ2, or ejection angle φ3 can be made larger than ejection angle φ4.

[0071] Also, the first and second ejection ports 479a and 479b eject the water while swirling it, for example. For example, by making the swirling speed of the water ejected from the first ejection port 479a and the swirling speed of the water ejected from the second ejection port 479b different, the ejection angle φ1 can be made different from the ejection angle φ2, or the ejection angle φ3 can be made different from the ejection angle φ4. More specifically, for example, by making the swirling speed of the water ejected from the first ejection port 479a larger than the swirling speed of the water ejected from the second ejection port 479b, the ejection angle φ1 can be made larger than the ejection angle φ2, or the ejection angle φ3 can be made larger than the ejection angle φ4.

[0072] FIG. 6(a) and FIG. 6(b) are photographs showing the shape of the water jetted from the first nozzle and the shape of the water jetted from the second nozzle. Fig. 6(a) shows the shape of water jetted directly downward from first jet nozzle 479a, while Fig. 6(b) shows the shape of water jetted directly downward from second jet nozzle 479b.

[0073] 6(a) and 6(b), the shape of the water jetted from first jet outlet 479a is wider than the shape of the water jetted from second jet outlet 479b. In other words, jet angle φ1 in the front-rear direction of first jet outlet 479a is larger than jet angle φ2 in the front-rear direction of second jet outlet 479b.

[0074] The jetting angle φ1 in the front-rear direction of the first jetting nozzle 479a and the jetting angle φ2 in the front-rear direction of the second jetting nozzle 479b can be calculated by, for example, determining the angle of the jetting range from a photograph of the shape of the jetted water as shown in Figures 6(a) and 6(b). In this case, the boundary of the jetting range is expressed as an approximate straight line by, for example, image analysis. In the same manner, the jetting angle φ3 in the left-right direction of the first jetting nozzle 479a and the jetting angle φ4 in the left-right direction of the second jetting nozzle 479b can also be calculated.

[0075] In addition, whether the jet angle φ1 in the front-rear direction of the first jet nozzle 479a and the jet angle φ2 in the front-rear direction of the second jet nozzle 479b are different can also be determined by, for example, the following method. First, as shown in FIG. 6(a), water is jetted from the first jet nozzle 479a to a plate-shaped test piece placed at a position away from the first jet nozzle 479a by a predetermined distance L (i.e., the position of the two-dot chain line in FIG. 6(a)), and the length X1 in the front-rear direction of the part of the test piece to which the water is attached (i.e., the length of the two-dot chain line in FIG. 6(a)) is obtained. Next, as shown in FIG. 6(b), water is jetted from the second jet nozzle 479b to a plate-shaped test piece placed at a position away from the second jet nozzle 479b by a predetermined distance L (i.e., the position of the two-dot chain line in FIG. 6(b)), and the length X2 in the front-rear direction of the part of the test piece to which the water is attached (i.e., the length of the two-dot chain line in FIG. 6(b)) is obtained. For example, when the length X1 and the length X2 are different, it is determined that the jetting angle φ1 in the front-rear direction of the first jetting nozzle 479a and the jetting angle φ2 in the front-rear direction of the second jetting nozzle 479b are different. More specifically, when the length X1 is longer than the length X2, it is determined that the jetting angle φ1 is larger than the jetting angle φ2, and when the length X1 is shorter than the length X2, it is determined that the jetting angle φ1 is smaller than the jetting angle φ2. Note that the "part where water is attached" is a part where water is attached to an area of ​​50% or more per unit area. In addition, for example, the jetting angle φ1 (φ2) can be calculated using trigonometric functions from the length X1 (X2) and the predetermined distance L. In the same manner, it is possible to determine whether the jetting angle φ3 in the left-right direction of the first jetting nozzle 479a and the jetting angle φ4 in the left-right direction of the second jetting nozzle 479b are different, and to calculate the jetting angle φ3 (φ4).

[0076] FIG. 7 is a cross-sectional view that illustrates a typical adhesion range of water ejected from a first ejection nozzle and an adhesion range of water ejected from a second ejection nozzle. FIG. 8 is a plan view that illustrates a typical range of adhesion of water ejected from a first ejection nozzle and a range of adhesion of water ejected from a second ejection nozzle. In FIG. 7, the boundary of the spray range of first spray outlet 479a of nozzle 473 in the stored position is indicated by a solid line, and the boundary of the spray range of second spray outlet 479b of nozzle 473 in the stored position is indicated by a dashed line. In Figure 8, the boundary of the adhesion range P1 of water sprayed from the first nozzle 479a of the nozzle 473 in the stored position is represented by a solid line, and the boundary of the adhesion range P2 of water sprayed from the second nozzle 479b of the nozzle 473 in the stored position is represented by a dashed line.

[0077] As shown in FIG. 7 and FIG. 8, the bowl 801 has a drainage section 801a, a front section 801b, a rear section 801c, a left section 801d, and a right section 801e. The drainage section 801a is a section to which the drainage pipe 802 is connected, and constitutes the bottom of the bowl 801. The front section 801b is a section located forward of the drainage section 801a. The rear section 801c is a section located rearward of the drainage section 801a. That is, the drainage section 801a is located between the front section 801b and the rear section 801c in the front-rear direction. The left section 801d and the right section 801e are sections located on the left and right sides of the drainage section 801a, respectively. That is, the drainage section 801a is located between the left section 801d and the right section 801e in the left-right direction.

[0078] Water sprayed from first outlet 479a of nozzle 473 in the stored position adheres to, for example, front portion 801b and rear portion 801c of bowl 801. In other words, spray angle φ1 in the front-to-rear direction of first outlet 479a is set to an angle such that, when water is sprayed with nozzle 473 in the stored position, water adheres to front portion 801b and rear portion 801c of bowl 801.

[0079] In this way, by setting the front-to-rear ejection angle φ1 of the first ejection port 479a of the nozzle 473 in the stored position to an angle such that the water ejected from the first ejection port 479a adheres to the front 801b and rear 801c of the bowl 801, the water can be applied to a wider area of ​​the bowl 801 in a shorter period of time.

[0080] For example, the jetting angle φ1 in the front-to-rear direction of first jetting port 479a may be set to an angle such that when water is jetted with nozzle 473 between the stored position and the advanced position, water adheres to front portion 801b and rear portion 801c of bowl 801. In other words, water jetted from first jetting port 479a of nozzle 473 between the stored position and the advanced position may adhere to front portion 801b and rear portion 801c of bowl 801, for example.

[0081] In this example, the adhesion range P1 of the water jetted from the first jet nozzle 479a includes the drainage section 801a, the front section 801b, the rear section 801c, the left section 801d, and the right section 801e of the bowl 801. The adhesion range P2 of the water jetted from the second jet nozzle 479b includes the drainage section 801a, the front section 801b, the rear section 801c, the left section 801d, and the right section 801e of the bowl 801. Note that the adhesion range P2 does not have to include, for example, the front section 801b of the bowl 801. The adhesion range P1 overlaps, for example, with the adhesion range P2. The area of ​​the adhesion range P1 is, for example, larger than the area of ​​the adhesion range P2.

[0082] In this example, the area of ​​the portion of the front part 801b of the bowl 801 included in the adhesion range P1 is larger than the area of ​​the portion of the front part 801b of the bowl 801 included in the adhesion range P2. The area of ​​the portion of the rear part 801c of the bowl 801 included in the adhesion range P2 is larger than the area of ​​the portion of the rear part 801c of the bowl 801 included in the adhesion range P1. The area of ​​the portion of the left part 801d of the bowl 801 included in the adhesion range P1 is larger than the area of ​​the portion of the left part 801d of the bowl 801 included in the adhesion range P2. The area of ​​the portion of the right part 801e of the bowl 801 included in the adhesion range P1 is larger than the area of ​​the portion of the right part 801e of the bowl 801 included in the adhesion range P2.

[0083] That is, the water jetted from first nozzle 479a adheres to a wider area at front 801b, left side 801d, and right side 801e of bowl 801 than the area where water jetted from second nozzle 479b adheres. On the other hand, the water jetted from second nozzle 479b adheres to a wider area at rear 801c of bowl 801 than the area where water jetted from first nozzle 479a adheres.

[0084] In other words, the front end of adhesion area P1 is located forward of the front end of adhesion area P2. The rear end of adhesion area P2 is located rearward of the rear end of adhesion area P1. The left end of adhesion area P1 is located to the left of the left end of adhesion area P2. The right end of adhesion area P1 is located to the right of the right end of adhesion area P2.

[0085] Water may be ejected from first ejection port 479a when nozzle 473 is in the stored position, when nozzle 473 is in the advanced position, or when nozzle 473 is between the stored position and the advanced position. Water may be ejected from second ejection port 479b when nozzle 473 is in the stored position, when nozzle 473 is in the advanced position, or when nozzle 473 is between the stored position and the advanced position.

[0086] As shown in Fig. 5(a) and Fig. 5(b), the sanitary washing device 100 has, for example, a shielding plate 600 that is rotatably provided with respect to the casing 400. The shielding plate 600 is located in front of the nozzle 473 when the nozzle 473 is in the stored position. When the nozzle 473 advances, the shielding plate 600 is pushed up by the nozzle 473 and rotates above the nozzle 473. When such a shielding plate 600 is provided, it is preferable that water is ejected from the first ejection port 479a when the nozzle 473 is in the advanced position or when the nozzle 473 is between the stored position and the advanced position (for example, the state shown in Fig. 5(a)).

[0087] The order of water ejection from first ejection port 479a and water ejection from second ejection port 479b is not particularly limited. That is, water ejection from first ejection port 479a may be performed before water ejection from second ejection port 479b, may be performed after water ejection from second ejection port 479b, or may be performed simultaneously with water ejection from second ejection port 479b. More specifically, water ejection from first ejection port 479a may be started before water ejection from second ejection port 479b, may be started after water ejection from second ejection port 479b, or may be started simultaneously with water ejection from second ejection port 479b. In addition, the water spray from first nozzle 479a may be stopped before the water spray from second nozzle 479b is stopped, or after the water spray from second nozzle 479b is stopped, or simultaneously with the water spray from second nozzle 479b being stopped.

[0088] The water jetted from the first jet outlet 479a and the second jet outlet 479b may be functional water produced in the electrolytic cell unit 450.

[0089] As described above, according to the embodiment, a sanitary cleaning device is provided that can apply water to a wider area of ​​the bowl in a short period of time and can deliver a sufficient amount of water to areas of the bowl that are prone to becoming dirty.

[0090] The above describes the embodiments of the present invention. However, the present invention is not limited to these descriptions. Any design modifications made by a person skilled in the art to the above-described embodiments are also included within the scope of the present invention as long as they have the characteristics of the present invention. For example, the shape, dimensions, materials, arrangement, installation form, etc. of each element of the sanitary washing device are not limited to those exemplified, and can be modified as appropriate. Furthermore, the elements of each of the above-described embodiments can be combined to the extent technically possible, and such combinations are also included within the scope of the present invention as long as they include the features of the present invention. [Explanation of symbols]

[0091] 10 water supply source, 20 water conveying section, 21 rear cleansing flow path, 22 soft cleansing flow path, 23 bidet cleansing flow path, 24 surface cleansing flow path, 25 first bowl jetting flow path, 26 second bowl jetting flow path, 100 sanitary cleansing device, 200 toilet seat, 300 toilet lid, 400 casing, 401 power supply circuit, 404 seating detection sensor, 405 control section, 407 exhaust port, 408 exhaust port, 431 solenoid valve, 432 pressure regulating valve, 433 check valve, 440 heat exchanger unit, 442 flow sensor, 450 electrolytic cell unit, 452 vacuum breaker, 471 flow rate adjustment section, 472 flow path switching section, 473 nozzle, 473a nozzle head, 473b nozzle cover, 474 outlet, 474a rear cleansing outlet, 474b soft cleansing outlet, 474c bidet cleansing outlet, 475a hole, 475b cutout, 476 nozzle drive unit, 477 front end, 478 nozzle cleaning unit, 479 outlet, 479a, 479b first and second outlets, 500 operation unit, 600 shielding plate, 800 toilet, 801 bowl, 801a drainage unit, 801b front, 801c rear, 801d left side, 801e right side, 802 drain pipe, 900 toilet device, C1, C2 center, CL1, CL2 center, D1, D2 1st and 2nd jet directions, ED Advance direction, HP Horizontal plane, L Specific distance, P1, P2 Adhesion range, R1, R2 Jet range, θ1, θ2 1st and 2nd angles, θ3 Advance angle, φ1~φ4 Jet angle

Claims

1. A sanitary cleaning device that is installed on a toilet bowl, comprising: A casing; A nozzle for washing a human body part, the nozzle being movable in a front-rear direction between a storage position in which the nozzle is stored in the casing and an advanced position in which the nozzle is advanced from the casing; Equipped with The nozzle is A first outlet that ejects water downward toward the front; A second outlet that ejects water further rearward than the first outlet; having A sanitary washing device, characterized in that a jetting angle in the front-to-rear direction of the first jetting port is different from a jetting angle in the front-to-rear direction of the second jetting port.

2. The sanitary washing device according to claim 1, wherein a jet angle in the front-rear direction of the first jet port is larger than a jet angle in the front-rear direction of the second jet port.

3. The sanitary washing device according to claim 1 or 2, wherein a jet angle in the left-right direction of the first jet port is larger than a jet angle in the left-right direction of the second jet port.

4. The bowl has a drainage portion to which a drain pipe is connected, a front portion located forward of the drainage portion, and a rear portion located rearward of the drainage portion, The sanitary washing device according to any one of claims 1 to 3, characterized in that water sprayed from the first outlet of the nozzle when in the stored position adheres to the front and rear of the bowl.

Images