JP2012207367A - Sanitary washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sanitary washing device capable of performing bidet washing with a water arrival force suitable for the width of a water arrival range of washing water in the bidet washing.SOLUTION: A sanitary washing device is provided with a nozzle having at least a first water ejection hole and a second ejection hole and ejecting washing water from the water ejection holes to make the washing water reach a female private parts. The nozzle tilts a first water ejection ejected from the first water ejection hole such that the washing water reaches a first range of the female private part and a second water ejection ejected from the second water ejection hole such that the washing water reaches a second range narrower than the first range to the rear-side of a user, thereby suppressing washing water scattering.

Description

  Aspects of the present invention generally relate to a sanitary washing apparatus, and more specifically, to a sanitary washing apparatus for washing a user's “butt” or the like seated on a Western-style seated toilet with water.

  Conventionally, it is easy to change the ejection pattern from the local cleaning device, prevent the enlargement of the nozzle, obtain a continuous uniform ejection pattern, and obtain a cleaning that satisfies the user. . As a similar technique, there is also known a water discharger that continuously controls a spread angle by causing a swirling flow to interfere in a circular chamber (Patent Document 1).

    In general, a nozzle for local washing as disclosed in Patent Document 2 advances into a bowl of a toilet and discharges washing water from an obliquely rear side of a user seated on a toilet seat. For this reason, the washing water supplied to the swirl imparting chamber is not provided with a sufficient swirl force, and the washing water discharged from the water discharge hole does not land on the target local area and escapes from the crotch to the surroundings. There is a risk of splashing or water discharge on the user's thigh. In this respect, there is room for improvement in order to prevent the user from feeling uncomfortable.

JP 2001-90154 A

  The present invention has been made on the basis of recognition of such a problem, and provides a sanitary washing device capable of performing comfortable body washing by suppressing scattering of washing water when washing a wide range in a human body part. For the purpose.

  1st invention is equipped with the nozzle which has a water discharge hole which spouts wash water with respect to the user's body part seated on the toilet seat, and the said nozzle discharges wash water to the 1st range from the said water discharge hole. And a second water discharge for discharging the wash water to a second range narrower than the first range, and a water discharge angle for a user of the first water discharged from the water discharge hole is a first water discharge angle. The sanitary washing device is characterized in that the angle is inclined toward the rear of the user with respect to the water discharge angle of No. 2.

According to this sanitary washing device, the water discharge angle with respect to the user of the first water discharge spouted from the water discharge hole is inclined toward the rear of the user rather than the water discharge angle of the second water discharge. In the case of water discharge, it is possible to get closer to the landing distance of the cleaning water that flies to the front of the user and the cleaning water that flies to the rear of the user, providing a good feeling of use I can do it. Moreover, since water discharge is jetted toward a user's back, the scattering of the washing water to a user's thigh and a toilet seat can be suppressed by reducing the scattering of the washing water to a user's front side. .
Since the first water discharge spreads over a wide area, compared to the second water discharge, the inclination of the water discharge is inclined to the front side, making it easier to jump forward, but by changing the angle, the front angle can be raised. It is possible to suppress the scattering due to the discharge of the water discharge, and it is also possible to suppress the water caused by the rebound after hitting the user. Compared to the second water discharge, the first water discharge has a shorter water landing distance to the user, so it is possible to reduce things that scatter outside the target range and supply stable washing water for the user. I can do it.

  In the second aspect of the invention, the angle of the water discharge hole when the first water discharge is discharged is toward the user's rear than the angle of the water discharge hole when the second water discharge is discharged. A sanitary washing device characterized by

  According to this sanitary washing device, washing can be performed without controlling the angle of the nozzle. Moreover, since the time which switches the angle of a nozzle is not required, switching of said 1st water discharge and 2nd water discharge can be performed rapidly.

  Further, in the third invention, when the angle of the water discharge hole with respect to the nozzle is set to 0 degree from the water discharge hole to the root of the nozzle, the angle of the water discharge hole of the first water discharge is 90 degrees or less. This is a sanitary washing device.

  According to this sanitary washing device, since the angle of the water discharge hole is 90 degrees or less, the landing distance to the user of the wash water can be reduced. That is, the cleaning water that comes to the front side of the user and the cleaning water that comes to the rear side of the user approach the user, and the stable cleaning water reaches the user. Accordingly, it is possible to reduce the scattering of the cleaning water to the front side of the user, the scattering of the cleaning water to the user's thigh and toilet seat can be suppressed, and a sanitary cleaning device having a good feeling of use can be provided. In addition, since the landing distance of the cleaning water that comes to the front side and the rear side of the user can be made closer, the feel of the cleaning water becomes uniform for the user, and the splashing of the cleaning water to the front side of the user is prevented. It is possible to provide a sanitary washing device that can be suppressed and that is comfortable to use.

  The fourth invention is characterized in that when the angle of the water discharge hole with respect to the nozzle is set to 0 degree from the water discharge hole toward the root of the nozzle, the angle of the water discharge hole of the second water discharge is larger than 90 degrees. This is a sanitary washing device.

  According to this sanitary washing device, since the angle of the water discharge hole is greater than 90 degrees, it becomes possible for the second water discharge to reach the front of the user farther than the maximum extension amount of the nozzle. It is easy to control the target position by changing the angle. As a result, it is possible to apply the washing water to the front side of the user, so that it is possible to provide a sanitary washing device with a comfortable feeling of use.

  Moreover, 5th invention is equipped with the 1st water discharge hole which ejects the 1st water discharge to the said nozzle, and the 2nd water discharge hole which ejects the 2nd water discharge, It is a sanitary washing apparatus characterized by the above-mentioned. .

According to this sanitary washing device, washing with different washing ranges such as the first water discharge and the second water discharge can be achieved by the same nozzle. Moreover, since the 1st water discharge hole which ejects the 1st water discharge and the 2nd water discharge hole which discharges the 2nd water discharge are provided, a different washing | cleaning form can be achieved, and the difference of a water discharge hole by the difference in a washing | cleaning form Since it is possible to change the inclination, it is possible to provide cleaning water that is comfortable for the user.
In addition, according to this sanitary washing device, when the first water discharge is directed rearward, there is a risk that the cleaning position may be insufficient for the user, but the first water discharge hole is positioned in front of the second water discharge hole. So you can wash more forward.

  According to a sixth aspect of the present invention, in the sanitary washing apparatus, the position of the first water discharge hole is located closer to the tip of the nozzle than the position of the second water discharge hole.

  According to this sanitary washing device, the landing distance of the first water discharge, which is wider than the second water discharge, is shorter than the second water discharge relative to the user's local area, and the user performs the second cleaning more than the first cleaning. Since the water discharge can be landed to the front, the second cleaning can be delivered to the front while suppressing scattering. Moreover, it can suppress that a washing | cleaning point slip | deviates also with respect to the direction which sits on the front side of a toilet seat, especially women.

  In the seventh invention, the first water discharge is discharged from the first water discharge hole, the second water discharge is discharged from the second water discharge hole, and the direction in which the cleaning water flows toward the water discharge hole is first. The sanitary washing apparatus is characterized in that the first water discharge flows from the nozzle tip side toward the root side, and the second water discharge flows from the nozzle root side toward the tip side.

According to this sanitary washing device, since the first water discharge flows from the nozzle tip side toward the root side and the inertia flows toward the front side of the user, the direction of flowing into the water discharge hole of the cleaning water flows from the nozzle tip side. Stable cleaning water is jetted to the user's front side, and the second water discharge flows from the nozzle base side toward the tip side, so that inertia works toward the user's rear side, so the scattering is suppressed by changing the angle. I can do it.

  ADVANTAGE OF THE INVENTION According to the aspect of this invention, when wash | cleaning a wide range in a human body local part, the sanitary washing apparatus which can suppress a splash of washing water and can perform comfortable body washing | cleaning can be provided.

It is a perspective schematic diagram showing the toilet apparatus provided with the sanitary washing apparatus concerning embodiment of this invention. It is a block diagram showing the principal part structure of the sanitary washing apparatus concerning this embodiment. It is a cross-sectional schematic diagram for demonstrating the 1st water discharge (wide water discharge) of the sanitary washing apparatus concerning this embodiment, and the 2nd water discharge (water discharge of a spot range). It is the upper surface schematic diagram which looked at the nozzle of this embodiment from the upper part. It is a cross-sectional schematic diagram in cut surface AA represented to FIG. It is a figure showing that it is effective with respect to scattering of wide water discharge to make 1st water discharge to a user's back rather than 2nd water discharge by changing a nozzle angle. It is a figure showing washing | cleaning until wide water discharge and spot water discharge land on a water landing surface. It is a perspective schematic diagram showing the specific example of the further another nozzle of this embodiment. It is a cross-sectional schematic diagram showing the specific example of the further another nozzle of this embodiment. It is a plane schematic diagram which illustrates the water-inflow direction to a turning chamber in the specific example of the further another nozzle of this embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a schematic perspective view illustrating a toilet apparatus including a sanitary washing device according to an embodiment of the invention.

  The toilet device shown in FIG. 1 includes a Western-style seat toilet (hereinafter simply referred to as “toilet” for convenience of description) 800 and the sanitary washing device 100 of the present invention provided thereon. 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 pivotally supported with respect to the casing 400 so as to be freely opened and closed. The toilet lid 300 can cover the toilet seat 200 in the closed state.

  Here, in the specific example shown in FIG. 1, the seating surface side of the toilet seat 200 of the sanitary washing device 100 is upward (upward), the opposite side is downward (downward), and the toilet seat 200 of the sanitary washing device 100 is The side to be pivotally supported is the rear direction (rear), the opposite side is the front direction (front), and the right side is the right direction (right side) and the left side is the left side. The direction (left side). In other words, the direction from the back (back side) to the front (belly side) of the user sitting on the toilet seat 200 is defined as the front direction (front), and the direction from the front to the back is defined as the rear direction (rear).

Inside the casing 400, a local cleaning function unit for cleaning a female part of a user sitting on the toilet seat 200 (bidet cleaning) is incorporated. Further, for example, the casing 400 is provided with a seating detection sensor 404 that detects that the user has sat on the toilet seat 200. When the seating detection sensor 404 detects a user sitting on the toilet seat 200, when the user operates an operation unit such as a remote controller (not shown), the nozzle 410 may be advanced into the bowl 801 of the toilet 800. it can. In the sanitary washing device 100 shown in FIG. 1, the nozzle 410 has entered the bowl 801.
Although FIG. 1 shows a specific example in which the nozzle 410 advances into the bowl 801 from the rear side to the front side of the bowl 801, the present invention is not limited to this. For example, unlike this, the nozzle 410 is advanced into the bowl 801 from the front side to the rear side of the bowl 801 and is also included in the scope of the present invention.

  One or a plurality of water discharge holes 411 are provided at the tip of the nozzle 410. The nozzle 410 can wash the female local part of the user sitting on the toilet seat 200 by spraying water from a water discharge hole 411 provided at the tip thereof. For example, in the nozzle 410 illustrated in FIG. 1, for example, the front water discharge hole 411 a of the two water discharge holes 411 is a water discharge hole for bidet cleaning, and the rear water discharge hole 411 b is a water discharge hole for butt cleaning. It is. In the present specification, “water” includes not only cold water but also heated hot water.

FIG. 2 is a block diagram showing a main configuration of the sanitary washing device according to the present embodiment.
The sanitary washing device 100 according to this embodiment includes a flow path 10 that guides water supplied from a water supply source (not shown) such as a water supply or a water storage tank. An electromagnetic valve 440 is provided on the downstream side of the flow path 10. The electromagnetic valve 440 is an electromagnetic valve that can be opened and closed, and controls the supply of water to the heat exchanger 450 based on a command from a control unit (not shown) provided inside the casing 400.

  A heat exchanger 450 is provided on the downstream side of the electromagnetic valve 440. The heat exchanger 450 heats the supplied water to make predetermined hot water. The heat exchanger 450 may be, for example, an instantaneous heating type heat exchanger using a sheathed heater or the like, or a hot water storage type heat exchanger using a hot water storage tank.

A pressure modulation device 470 is provided on the downstream side of the heat exchanger 450. The pressure modulation device 470 can pulsate the flow of water in the flow path 10 and pulsate the water ejected from the water discharge hole 411 of the nozzle 410.
A nozzle 410 is provided on the downstream side of the pressure modulation device 470. The nozzle 410 includes a flow rate adjustment valve (water channel selection means) 480 that adjusts the water flow (flow rate), a wide water discharge channel (first water supply channel) 427 through which water is discharged during wide water discharge, and spot water discharge. A spot water discharge channel (second water supply channel) 428 and a nozzle main body 420 are provided. The flow rate adjustment valve 480 can adjust the water flow, and can open, close, and switch water supply to the nozzle 410. More specifically, the sanitary washing device 100 according to the present embodiment is configured to uniformly land in a wide range from the first water discharge hole 411a of the nozzle 410 so as to land in the first range of the female local area. Wide area water discharge (first water discharge) and a spot from which the wash water is discharged so as to land in the second range narrower than the first range from the second water discharge hole 411b of the nozzle 410. Water discharge (second water discharge) can be executed.

  The flow rate adjusting valve 480 can pass water to the wide water discharge flow path 427 or flow to the wide water discharge flow path 427 based on a command from a control unit (not shown) by a switch operation of the remote controller. Alternatively, the flow rate adjustment valve 480 can pass water to the wide water discharge channel 427 and the spot water discharge channel 428 at a predetermined ratio. As a result, the user switches between the wide water discharge channel 427 and the spot water discharge channel 428 or the flow rate of the cleaning water passing through the wide water discharge channel 427 and the spot water discharge channel 428. By appropriately changing the ratio of the flow rate of the washing water that passes through, you can switch between wide water discharge that quickly cleans a wider area at once and spot water discharge that focuses on a narrower area according to your preference. be able to. This will be described in detail later.

  The nozzle 410 receives a driving force from a motor or the like, for example, and can advance or retreat into the bowl 801 of the toilet bowl 800. And the nozzle 410 can wash the female local part of the user who sat on the toilet seat 200 by ejecting water from the water discharge hole 411 in the state which advanced into the bowl 801.

FIG. 3 is a conceptual schematic diagram for explaining the landing range of wash water by various water discharges.
The nozzle 410 of the present embodiment is provided so as to be able to switch between wide water discharge (FIG. 3 (a)) and spot water discharge (FIG. 3 (b)) for landing the wash water 500 on the female local area. When discharging water, the nozzle 410 advances forward obliquely below the horizontal plane.

As shown in FIG. 3A, the wide water discharge means that the cleaning water 500 is discharged from the water discharge hole 411 of the nozzle 410 in the first range A1 in a state where the nozzle 410 is stationary at the first reference position P1. Says to spit water.
In the wide water discharge, the wash water 500 reaches the first landing area S1 including the female part of the user 600.
As shown in FIG. 3B, the spot water discharge means the cleaning water 500 in the second range A2 narrower than the first range A1 in a state where the nozzle 410 is stationary at the second reference position P2. Is discharged from the water discharge hole 411 of the nozzle 410.
In the spot water discharge, the washing water 500 lands in the second water landing range S2 including the female part of the user 600.

  With wide water discharge, washing water can be uniformly applied over a wide range of female local areas compared to spot water discharge. That is, when wide water discharge is performed in bidet cleaning, the cleaning water can reach a wide area centering on the female local area and can be cleaned. Therefore, a desired wide range can be quickly cleaned. On the other hand, when spot water discharge is performed, a narrower range than that in the case of wide water discharge can be cleaned, and a portion to be cleaned can be cleaned intensively according to preference.

Next, a specific example of the nozzle 410 of this embodiment will be described with reference to the drawings.
FIG. 4 is a schematic top view of the nozzle of this embodiment as viewed from above.
FIG. 5 is a schematic cross-sectional view taken along the cutting plane AA shown in FIG.

  The nozzle 410 according to the present embodiment has a nozzle body 420. Inside the nozzle body 420, a wide water discharge channel 427 and a spot water discharge channel 428 are provided. The wide water discharge channel 427 is connected in the tangential direction of the large-diameter inner peripheral wall 423e of the first swirl chamber 423a. On the other hand, the spot water discharge channel 428 is connected to the large-diameter inner peripheral wall 423e so as to be directed to the axial center of the second swirl chamber 423b.

  Since the wide water discharge channel 427 is connected in the tangential direction of the large-diameter inner peripheral wall 423e of the first swirl chamber 423a, the washing that has passed through the wide water discharge channel 427 and entered the first swirl chamber 423a. Water swirls along the large-diameter portion inner peripheral wall 423e and the inclined inner peripheral wall 423f. This is as described above with respect to FIG. On the other hand, since the spot water discharge channel 428 is connected to the large-diameter inner peripheral wall 423e so as to be directed to the axis of the second swirl chamber 423b, the spot water discharge channel 428 passes through the spot water discharge channel 428 and passes through the second swirl chamber. The wash water that has flowed into 423b is ejected from one end of the second communication path 425b, that is, the first water discharge hole 426b without turning or with reduced turning force.

  Therefore, according to the nozzle 410 of this specific example, when the washing water is caused to flow into the first swirl chamber 423 via the wide water discharge channel 427, the hollow conical water discharge 510 having a larger swirl force is supplied to the second swirl chamber 423. Water can be discharged from the water discharge hole 426a. When the nozzle 410 according to this specific example has the first throat 430a shown in FIG. 3, the hollow conical water discharge 510 ejected from the second water discharge hole 426a transitions to the granulated water flow 520. To do. Therefore, in this case, the user can quickly clean a wider area at a time.

  Further, when the cleaning water is caused to flow into the second swirl chamber 423b through the spot water discharge channel 428, the straight flow 530 and the droplet 540 can be discharged from the first water discharge hole 426b. Therefore, in this case, the user can intensively clean the portion to be cleaned as desired.

The wide water discharge channel 427 flows into the first swirl chamber 423a so as to have a large swirl force, and by applying the large swirl force, a contraction occurs near the spout hole and a pressure loss occurs. However, the flow rate of the wide water discharge can be made higher than the flow rate of the spot water discharge by causing the wash water to flow into the wide water discharge channel 427 with a larger water intake pressure than the spot water discharge channel 428. On the other hand, since the swirl force of spot water discharge is made to flow into the second swirl chamber 423b so as not to increase, the pressure loss is small and high pressure is not required, so the flow rate is suppressed by reducing the water pressure. .
As a means for changing the incoming water pressure, a throttle part is provided so that the pressure loss in the flow rate adjusting valve leading to the spot water discharge passage 428 or in the middle of the flow passage is larger than the flow passage leading to the wide water discharge passage 427, The water pressure is changed. In addition, you may change an incoming water pressure by mounting a pump etc. and adjusting the output of a pump.

  Further, the cross-sectional area of the second water discharge hole 426a when viewed in the water discharge direction when the washing water is ejected from the water discharge hole is formed larger than that of the first water discharge hole 426b. Therefore, the flow velocity difference is automatically generated by switching between wide water discharge and spot water discharge. Thereby, the flow velocity can be varied between the first water discharge and the second water discharge without providing a large-scale device or device.

  Therefore, according to this specific example, the user can quickly wash a wider area at a time by changing the flow path of the wash water between the flow path 427 for wide water discharge and the flow path 428 for spot water discharge. It is possible to switch between wide water discharge and spot water discharge that focuses on a narrower area according to preference.

  FIG. 6 is a diagram showing that it is effective for scattering the wide water discharge to discharge the first water discharge toward the rear of the user rather than the second water discharge by changing the nozzle angle. .

In the cleaning ejected from the water discharge hole 411a of the nozzle 410a, the wide water discharge is water discharge in which the cleaning component swirled in the swirl chamber 423 spreads in a conical shape.
In the wide water discharge, mist-like wash water is uniformly distributed over a wide range of female local areas compared to spot water discharge. That is, when wide water discharge is performed in bidet cleaning, it is possible to perform cleaning by landing on a wide area centering on a female local area. Therefore, a desired wide range can be quickly cleaned. The washing water 200 represents the washing water that flies to the rear side for the user, and the washing water 201 represents the washing water that flies to the front side for the user.

Since the cleaning water of the wide water discharge spreads out in a conical shape and the nozzle 410a is inclined obliquely, the cleaning water 201 flying to the front side of the user is compared with the 200 flying to the rear side of the user, The distance is long before landing on the user. Therefore, it takes time for the washing water 201 discharged from the front side of the user to land. At this time, the wash water that has deviated from the trajectory of the target wash water is scattered and splashes at a place different from the target landing position.
In order to suppress such scattering, the wide water discharge angle is inclined to the rear of the user so that the landing distances of the cleaning water 201 and the cleaning water 200 to the user are equal.
Thereby, since water discharge is jetted toward the user's back, it is possible to reduce the splashing of the washing water to the front side of the user, and to suppress the splashing of the washing water to the user's thigh and toilet seat. I can do it.

  Further, the nozzle 410b at the time of spot water discharge has a nozzle angle larger than that of the nozzle 410a. In the cleaning sprayed from the water discharge hole 411b of the nozzle 410b, the spot water discharge passes through the swirl chamber 423 and does not contain the swirling component as much as the wide water discharge, and discharges concentrated in a spot manner. In this spot water discharge, unlike the wide water discharge, the water is concentrated on a female local area. The washing water 202 represents the washing water that flies to the rear side for the user and the washing water 203 represents the washing water that flies to the front side for the user.

  Since the cleaning water of the spot water discharge does not spread in a conical shape, the landing distance of the cleaning water 203 can be made longer than that of the cleaning water 202. Therefore, the cleaning water 203 flying to the front side of the user does not scatter even when the distance to the user reaches longer than that of the water 202 flying to the rear side of the user. Therefore, in order to allow the cleaning water 203 to reach the front side of the user, the cleaning water 203 is provided with a good feeling of use by increasing the landing distance of the cleaning water 203 to the user rather than the cleaning water 202. I can do it. This can be realized by causing the nozzle 410a to make the angle of the nozzle itself wider than the nozzle 410b of the spot water discharge.

  FIG. 7 is a view showing cleaning until wide water discharge or spot water discharge reaches the landing surface. FIG. 7A shows wide water discharge, and FIG. 7B shows spot water discharge. The angle 600 of the water discharge hole with respect to the nozzle is set to 0 degree from the water discharge hole toward the root of the nozzle.

The wide water discharge spouted from the nozzle 410 in FIG. 7 (a) is uniformly sprayed with mist-like wash water over a wide range of female local areas as compared with spot water discharge. That is, when wide water discharge is performed in bidet cleaning, it is possible to perform cleaning by landing on a wide area centering on a female local area. Therefore, a desired wide range can be quickly cleaned. The cleaning water 201 in the wide water discharge has a longer distance to the landing surface than the cleaning water 200. For this reason, since the cleaning water 201 is more likely to scatter, it is possible to suppress the splatter by making the landing distance of the cleaning water 200 and the cleaning water 201 closer by setting the water discharge hole of the wide bidet to 90 degrees or less. It becomes possible.

  The spot water spouting from the nozzle 410 in FIG. 7 (b) cleans a woman's local area in a spot manner, and can focus on the portion to be washed according to preference as compared with the wide water spouting. In the case of spot water discharge, since it is intensive cleaning, there is no great difference in the water discharge distance of the cleaning water 202 and the cleaning water 203 compared to the wide water discharge. Therefore, even if the water discharge angle 600 is greater than 90 degrees, no scattering occurs, and even when the water discharge angle is greater than 90 degrees, stable washing water can be provided to the user. In addition, since the angle of the water discharge hole of the spot water discharge is larger than 90 degrees, it is possible to allow the cleaning water to reach the front side of the user farther than the maximum extension amount of the nozzle, and the target position is controlled by the angle. It's easy to do. As a result, it is possible to apply the washing water to the front side of the user, so that it is possible to provide a sanitary washing device with a comfortable feeling of use. Water discharge in (a) and (b) can be achieved by changing the angle of the water discharge hole as described above even when the angle of the nozzle 410 is the same.

The nozzle 410 in FIG. 7C indicates that the nozzle has a wide water discharge hole for ejecting wide water discharge and a spot water discharge hole for ejecting spot water discharge at the same time. Located in front of the nozzle. Further, in the present embodiment, the nozzle 410 is configured so that the water discharge range falls within the water discharge range at the landing surface of the wide water discharge, and the water discharge range at the spot water discharge surface.
Since the wide water discharge becomes a swirling flow in the swirl chamber 423 and is discharged in a conical shape, the water discharge hole 411a is preferably perpendicular to the nozzle. On the other hand, since spot water discharge is concentrated water discharge, it is easy to control the cleaning point. In spot water discharge, there is no problem even if the water discharge hole 411b is inclined. In order to establish these two in the small space of the same nozzle 410, it is desirable to provide the wide water discharge hole 411a ahead of the spot water discharge hole 411b.

  Next, specific examples of still another nozzle according to the present embodiment will be further described with reference to the drawings. FIG. 8 is a schematic perspective view showing the nozzle of this embodiment. FIG. 9 is a schematic sectional view showing the nozzle of this embodiment. FIG. 10 is a schematic plan view illustrating the direction of water entering the swirl chamber of this embodiment. FIG. 9 is a schematic cross-sectional view taken along the cutting plane BB shown in FIG.

  As shown in FIG. 9, the first flow path 427 is eccentrically connected to the swirl chamber 423. Specifically, there is a shortest distance D1 between the center line of the first flow path 427 and the center axis 423a of the swirl chamber 423. On the other hand, the second channel 428 is eccentrically connected to the swirl chamber 423 in the same manner as the first channel 427. Specifically, there is a shortest distance D2 between the center line of the second flow path 428 and the center axis 423a of the swirl chamber 423. A first connection portion 427b that is a connection portion between the center line of the first flow path 427 and the swirl chamber 423, and a second connection that is a connection portion between the center line of the second flow path 428 and the swirl chamber 423. The portion 428 b is provided at a substantially symmetrical position when viewed from the central axis 423 a of the swirl chamber 423. Further, the shortest distance D2 between the center line of the second flow path 428 and the central axis 423a of the swirl chamber 423 is shorter than the shortest distance D1 between the center line of the first flow path 427 and the central axis 423a of the swirl chamber 423. long.

  The second flow path 428 includes a rectilinear portion 428 c formed substantially in parallel with the advance direction of the nozzle 410 and a bent portion 428 d formed by bending with respect to the advance direction of the nozzle 410. In other words, the bent portion 428d is bent as viewed from the rectilinear portion 428c, and is formed as a curved portion having a curved surface, not a right-angle portion where the plane and the plane are connected at a right angle. Therefore, compared with the case where the bent portion 428d is formed as a right angle portion, it is possible to suppress the pressure loss that occurs when the cleaning water passes through the bent portion 428d. Thereby, the water discharge (wide water discharge) of the wash water that has passed through the second flow path 428 can be further stabilized.

  The downstream side of the bent portion 428d is connected to the swirl chamber 423. Therefore, the traveling direction of the cleaning water that passes through the rectilinear portion 428 c and the bent portion 428 d and flows into the swirl chamber 423 is changed from the advancing direction of the nozzle 410. Therefore, when the washing water passes through the bent portion 428d, the straight traveling component in the forward direction is reduced. Then, as shown in FIG. 12, the washing water flows into the swirl chamber 423 in the rearward direction rather than in the left-right direction.

The direction in which the cleaning water flows into the swirl chamber 423 (incoming water direction) is not limited to the incoming water direction shown in FIG. The direction of entering the swirl chamber 423 is a direction having a backward component, that is, a direction in which the backward component is greater than zero.
For example, the arrow A11 (right side) and the arrow A27 (left side) shown in FIG. 13 are directions in which the backward component is zero. On the other hand, for example, arrows A13, A15, A17, A19, A21, A23, and A25 are all directions in which the backward component is larger than zero. That is, the arrows A13, A15, A17, A19, A21, A23, and A25 are more backward than the right side (the direction of the arrow A11) and the left side (the direction of the arrow A27). In other words, the direction of water entering the swirl chamber 423 is the direction from the right side (the direction of the arrow A11) to the left side (the direction of the arrow A27) when viewed counterclockwise. In the present invention, the direction of water entering the swirl chamber 423 can be the direction of these arrows A13, A15, A17, A19, A21, A23, A25, and the like.

FIG. 10 illustrates the case where the cleaning water flows in such a manner that a counterclockwise swirling flow is formed in the swirling chamber 423, but the present invention is not limited to this. On the contrary, the washing water may flow so that a clockwise swirling flow is formed in the swirling chamber 423. Also in this case, the direction in which the cleaning water flows is from the left side (the direction opposite to the arrow A11) to the right side (the direction opposite to the arrow A27) when viewed clockwise.
10 is the tangential direction of the large-diameter inner peripheral wall 423e of the swirl chamber 423, but the incoming water direction to the swirl chamber 423 is limited to the tangential direction of the large-diameter inner peripheral wall 423e of the swirl chamber 423. It is not done.

  As shown in FIG. 9, the second flow path 428 is connected to the swirl chamber 423 on the front side of the position where the water discharge hole 426 of the nozzle body 420 is formed. The inner side wall 428e of the bent portion 428d is connected to the large-diameter inner peripheral wall 423e of the turning chamber 423 at an angle smaller than the outer side wall 428f of the bent portion 428d. In the present embodiment, the second flow path 428 is connected in the tangential direction of the large-diameter portion inner peripheral wall 423e of the swirl chamber 423. That is, the inner side wall 428e of the second flow path 428 is connected to the tangential direction of the large-diameter portion inner peripheral wall 423e of the swirl chamber 423.

  Therefore, the wash water that has flowed into the swirl chamber 423 through the second flow path 428 swirls along the large-diameter inner peripheral wall 423e as shown by an arrow A2 in FIG. Alternatively, even if the second flow path 428 is not connected in the tangential direction of the large-diameter portion inner peripheral wall 423e of the swirl chamber 423, the shortest distance D2 is longer than the shortest distance D1, and thus passes through the second flow path 428. The washing water that has flowed into the swirl chamber 423 swirls in a state having a larger swirl component (or swirl force) than the wash water that has passed through the first flow path 427 and has flowed into the swirl chamber 423.

  On the other hand, the wash water that has flowed into the swirl chamber 423 through the first flow path 427 swirls in the swirl chamber 423 as indicated by an arrow A1 shown in FIG. At this time, the first flow path 427 is not connected in the tangential direction of the large-diameter portion inner peripheral wall 423e of the swirl chamber 423. Therefore, the wash water that has flowed into the swirl chamber 423 through the first flow path 427 does not swirl along the large-diameter inner peripheral wall 423e. The shortest distance D1 is shorter than the shortest distance D2. Therefore, the wash water that has flowed into the swirl chamber 423 through the first flow path 427 has a smaller swirl component than the wash water that has flowed into the swirl chamber 423 through the second flow path 428. Turn. Then, the cleaning water swirled in the swirl chamber 423 passes through the communication passage 425 in a state where the swirling component is reduced as compared with the wash water that has flowed into the swirl chamber 423 through the second flow path 428, and the nozzle body 420. From the water discharge hole 426.

  According to the nozzle 410 shown in FIGS. 8 and 9, the direction in which the cleaning water flows into the swirl chamber 423 is more backward than the right side and the left side. That is, the washing water flows into the swirl chamber 423 more backward than the right side and the left side. Further, when the washing water passes through the bent portion 428d, the straight traveling component in the forward direction is reduced. Therefore, it is possible to provide resistance to the cleaning water that is about to be ejected forward from the water discharge hole 426 of the nozzle body 420 without imparting the swirl component. As a result, the wash water flowing through the front flow channel inner surface 431a as viewed from the central axis 431c of the throat flow channel 431 receives greater resistance than the wash water flowing through the rear flow channel inner surface 431b.

According to this, it is possible to prevent the cleaning water 500 ejected from the water discharge hole 411 of the nozzle 410 from landing outside the target range. In addition, it is possible to prevent the washing water 500 ejected from the water discharge hole 411 of the nozzle 410 from landing on the body local part, escaping from between the crotch and splashing around, or being discharged to the user's thigh.
Wide water discharge has inertia toward the front side of the user, so stable washing water is jetted to the front side of the user, and spot water discharge flows toward the rear side of the user by flowing from the nozzle base side toward the tip side. Because inertia works, you can change the angle and suppress scattering.

DESCRIPTION OF SYMBOLS 10 Flow path, 100 Sanitary washing apparatus, 200 Toilet seat, 300 Toilet lid, 400 Casing, 404 Seating detection sensor, 410 Nozzle, 411a 2nd water discharge hole, 411b 1st water discharge hole, 420 Nozzle main body, 423a 1st rotation Chamber, 423b second swirl chamber, 423e large diameter inner peripheral wall, 423f inclined inner peripheral wall, 424 projecting portion, 425a first communication path, 425b second communication path, 426a second water discharge hole, 426b first Water discharge hole, 427 Wide water discharge channel, 428 spot water discharge channel, 430a first throat, 430b second throat, 431a first throat channel, 431b second throat channel, 432 taper part, 433a 2nd water discharge hole, 433b 2nd water discharge hole, 440 Solenoid valve, 450 heat exchanger, 470 Force modulation device, 475 downstream side, 480 flow rate adjustment valve, 500 washing water, 600 nozzle angle, 201 wide water discharge washing water on the user's front side, 200 wide water discharge washing water on the user's rear side, 203 spot water washing on the user's front side Water, 202 Spot water scouring water on the back side of the user, 800 toilet bowl, 801 bowl

Claims (7)

  A nozzle having a water discharge hole for ejecting wash water to a local body part of a user seated on a toilet seat, the nozzle discharging first wash water from the water discharge hole to a first range; The second water discharge for discharging the wash water to the second range narrower than the range of 1 can be switched, and the water discharge angle for the user of the first water discharged from the water discharge hole is the water discharge angle of the second water discharge. A sanitary washing device characterized in that the angle is inclined toward the rear of the user.   The angle with respect to the user of the water discharge hole when the first water discharge is discharged is toward the rear of the user than the angle of the water discharge hole when the second water discharge is discharged. The sanitary washing device according to claim 1.   The angle of the water discharge hole with respect to the nozzle of the water discharge hole is set to 0 degrees when the angle from the water discharge hole toward the root of the nozzle is set to 0 degree. The angle of the water discharge hole of the first water discharge is 90 degrees or less. Item 3. The sanitary washing device according to Item 2. The angle of the water discharge hole of the second water discharge is greater than 90 degrees when the angle from the water discharge hole to the nozzle base is set to 0 degree. The sanitary washing device according to any one of the above.   The said nozzle is equipped with the 1st water discharge hole which ejects the 1st water discharge, and the 2nd water discharge hole which discharges the 2nd water discharge, The any one of Claims 1-4 characterized by the above-mentioned. Sanitary washing device.   The sanitary washing device according to any one of claims 1 to 5, wherein the position of the first water discharge hole is located closer to the nozzle tip side than the position of the second water discharge hole.   The first water discharge is discharged from the first water discharge hole, the second water discharge is discharged from the second water discharge hole, and the direction in which the cleaning water flows toward the water discharge hole is from the nozzle tip side. The sanitary washing device according to any one of claims 1 to 6, wherein the second water discharge flows from the nozzle base side toward the tip side toward the base side.