JP3966456B2 - Human body cleaning device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a human body cleaning device that discharges cleaning water from a water discharge hole to a human body.
[0002]
[Prior art]
This type of cleaning device, for example, a device for cleaning a local part of a human body, discharges water from the water discharge hole to the human body and removes dirt with the cleaning water. The water flow of the washing water can be adjusted, and the user can raise the water flow to quickly remove the dirt, or to perform washing by discharging the water with a strong and stimulating feeling of washing. On the other hand, the water flow can be lowered and washing can be performed with soft water discharge, and the desired water discharge can be selected by changing the water flow in this way.
[0003]
In addition, some pulsation is added to the wash water to increase the detergency, save water by reducing the amount of water used compared to the case of continuous water discharge, and the amount of heat used to warm the water by water saving. There are also human body washing devices that save energy and save energy.
[0004]
[Problems to be solved by the invention]
In conventional human body cleaning devices, when adjusting the water flow, the water flow is adjusted by changing the amount of water in order to adjust the flow rate of the cleaning water while discharging the cleaning water from the water discharge holes having a constant cross-sectional area. It was. In this case, if the water is dropped for the purpose of washing with soft water discharged by the user, the phenomenon that the washing area becomes narrower the weaker the water is. This phenomenon can be explained as follows. In addition, the cleaning area here means that the distance from the water discharge hole of the washing water to the human body part to be cleaned is L, the water discharge at the position of the distance L in the water discharge direction from the water discharge hole of the cleaning water. Refers to the cross-sectional area.
[0005]
Two cases of washing with strong water and weak water with a human body washing device will be compared. As shown in FIG. 15, the water discharge cross-sectional area immediately after the cleaning water is discharged from the water discharge hole of the human body cleaning device is S1 and S2 in the case of the strong water force and the weak water force, respectively. In addition, the flow velocity at this time is set to V1 and V2 in each of strong water and weak water. Next, the water discharge cross-sectional area at the point where the washing water reaches the human body part is set to S1 ′ and S2 ′ in the case of strong water force and weak water force, respectively. Further, the flow velocity at this time is set to V1 ′ and V2 ′ in the strong water and weak water forces, respectively.
[0006]
Until the water discharge reaches the water discharge hole and the human body part, the speed decreases due to the resistance from the air, but this resistance is proportional to the speed of the water discharge at that time. Compared to water discharge with a small flow velocity immediately after water discharge, water discharge receives a greater resistance, and the rate of decrease in speed that occurs before reaching the human body part is also large. That is, V1 ′ / V1 <V2 ′ / V2. Here, since the wash water is discharged at a constant flow rate at a constant water flow, S1 · V1 = S1 ′ · V1 ′ and S2 · V2 = S2 ′ · V2 ′. Furthermore, since the water discharge cross-sectional area in the vicinity of the water discharge hole depends on the cross-sectional area of the water discharge hole, S1 = S2 = S. That is, S1 ′ = S · V1 / V1 ′, S2 ′ = S · V2 / V2 ′, and S1 ′ / S2 ′ = (V1 / V1 ′) / (V2 / V2 ′). Since V1 ′ / V1 <V2 ′ / V2, that is, V1 / V1 ′> V2 / V2 ′ as described above, S1 ′ / S2 ′ = (V1 / V1 ′) / (V2 / V2 ′)> 1. That is, it can be seen that S1 ′> S2 ′. That is, it can be seen that when the water flow falls, the water discharge cross-sectional area in the human body part, that is, the cleaning area becomes small.
[0007]
These facts are also experienced when a human actually performs cleaning with a human body cleaning device. FIG. 16 shows the results of asking 32 monitor persons how the washing area changed when the water was raised and lowered by washing the local area using a conventional human body washing apparatus. Monitors who feel that the cleaning area has become narrower when the water level is lowered account for 60% of all monitors.
[0008]
The following are examples of adverse effects of narrowing the washing area in the weak water.
First, when the cleaning area is narrowed, the body surface area that can be cleaned at a time decreases, and the cleaning efficiency decreases. In addition to the actual reduction in cleaning efficiency, the “feeling of dirty” felt by the user is also reduced. For this reason, when washing with the purpose of washing with soft washing water, the washing efficiency is lowered at the same time, and the `` feeling of dirt '' that is felt is also lowered, and there is a problem that the user feels unsatisfactory It was. In addition, the amount of cleaning water felt by the user is reduced due to the narrowing of the cleaning area. FIG. 17 asks 26 monitor persons how the amount of water perceived by the body changes when the washing area is changed using a human body washing apparatus that can change only the washing area with a constant flow rate. The result is shown. This shows that even if the flow rate is constant, if the cleaning area is small, it is felt that “the amount of water is small”. That is, as shown in FIG. 18, as the water flow is lowered, in addition to the actual reduction in the amount of water when the amount of water is dropped in order to reduce the flow velocity, a decrease in the “feeling flow rate” due to the reduction in the washing area occurs. The flow rate of the cleaning water felt by the user is rapidly reduced, resulting in a problem that the user feels unsatisfactory.
[0009]
This tendency is even more pronounced when the wash water is discharged with pulsation and becomes a water mass and collides with the human body. First, the mechanism of pulsation generation when pulsation is imparted to the wash water by continuously changing the feed water flow rate will be described.
FIG. 20 is an explanatory diagram illustrating a process in which, when pulsating wash water is discharged from the water discharge hole 30, the discharged wash water is amplified to a pulsating flow. As shown in FIG. 19, when the amount of washing water pulsates, the flow velocity V similarly varies and pulsates. That is, when the amount of water discharged becomes the maximum flow rate Qmax, the flow velocity also becomes the maximum velocity Vmax, and the instantaneous flow velocity and flow rate vary with time. Further, if each part of the pulsating flow washing water in FIG. 19 is Wp1, Wp2, Wp3, Wp4, Wp5, the amount of each part is Wp1 (≈Wp5) <Wp2 (≈Wp4) <Wp3, and the respective flow rates are as follows. Also, V1 (≈V5) <V2 (≈V4) <V3. Therefore, since Wp3 is faster than Wp2 as it moves from (a) to (c) in FIG. 20 immediately after water discharge, Wp3 merges with Wp2 and further merges with Wp1 to form a large water mass.
[0010]
Thus, Wp3 of the maximum flow velocity is sequentially merged with Wp2 and Wp1 in front of it to form a large lump and land on the human body part (cleaning surface). Since this flow velocity V3 is the maximum flow velocity Vmax shown in FIG. 19, the wash water discharged by the pulsating flow is discharged from the water discharge hole in such a form that the combined water mass appears every pulsation cycle MT. Will be. Moreover, since such a phenomenon occurs in the pulsation cycle, the water mass that has undergone the combination of the maximum flow velocity Wp3 as described above repeatedly appears, and the water mass at a certain water discharge timing and the combination of Wp3 at the next water discharge timing The water mass that has passed through is moved (spouted) at substantially the same speed (maximum speed). Moreover, each of these water masses is in a state of being connected by Wp4 and Wp5 discharged after delaying Wp3 at the maximum flow velocity.
[0011]
When cleaning is performed by generating a pulsating flow by such a method, the cleaning area is reduced as the water flow is reduced. This is due to the following reasons.
As shown in FIG. 21B, the average flow rate of the washing water needs to be reduced as the water flow is lowered. Then, since the difference between the maximum flow velocity and the minimum flow velocity is also small, the generation of water mass due to the combination of waters having different speeds as described above is less likely than in the case of continuous flow. Further, as shown in FIG. 21A, the average flow rate of the feed water flow rate is also reduced in order to reduce the average flow rate of the wash water. In other words, the size of the resulting water mass itself becomes smaller. The process of forming a water mass in a weak water flow is shown in order from (a) to (c) in FIG. Compared with the generation process of the water mass in the strong water flow of FIG. 20, in the weak water flow, the difference between the maximum flow velocity and the minimum flow velocity becomes small, and thus the water mass is difficult to be formed. Becomes smaller. Here, the area when a small water mass collides with a human body part becomes narrower than when a large water mass collides with a human body part. In other words, when the water flow falls, the cleaning area becomes smaller. This is one of the reasons why the cleaning area becomes narrower as the water flow is reduced when pulsating flow is generated.
[0012]
In addition to this reason, the cleaning area is narrowed due to the low flow rate of the cleaning water itself. The principle of the narrowing is the same as that in the case of the cleaning method in which water is discharged in a continuous flow when the cleaning area is narrowed when the water flow drops.
As described above, in a human body cleaning apparatus that generates pulsating flow and performs cleaning, in a weak water stream, cleaning is performed by narrowing the cleaning area due to a decrease in the water mass due to a decrease in the water supply flow rate and reducing the speed of the water mass discharged. The area will be narrowed. That is, the narrowing of the cleaning area in a weak water flow when pulsation is added to the cleaning water is more remarkable than in the case of continuous water discharge. As a result, a reduction in cleaning efficiency, a decrease in “feeling of dirt”, and a decrease in “amount of water perceived” due to the reduction in the cleaning area also appear more remarkably.
[0013]
[Means for solving the problems and their functions and effects]
In order to solve such a problem, the human body cleaning apparatus of the present invention has a cleaning area when the water flow is reduced and washed by independently controlling the water amount and the discharge cross-sectional area simultaneously according to the water setting input of the cleaning water. Is reduced, the cleaning efficiency is lowered, and the “feeling of soiling” and the “sensation flow rate” are suddenly reduced to prevent feeling unsatisfactory.
[0014]
In the human body washing apparatus of the present invention having the above-described configuration, a water force setting means for setting the water flow of the washing water, and a water supply flow rate to the water discharge hole and a washing water washing area are controlled in accordance with an input from the water force setting means. A control means; a feed water flow rate adjusting means for adjusting a feed water flow rate to the water discharge hole based on a signal from the control means; and a cleaning area adjustment means for adjusting a discharge cross-sectional area of the wash water based on a signal from the control means. Therefore, even if the water discharge flow rate is lowered to achieve the feeling of cleaning desired by the user, that is, even if the water supply flow rate to the water discharge hole is reduced, the cleaning area is controlled independently of the amount of water at that time. Washing can be performed without reducing it. For this reason, it is possible to prevent the user from feeling unsatisfactory due to a decrease in cleaning efficiency due to a decrease in the cleaning area, and a decrease in “feeling that the stains are lost” and “sensation flow rate”.
[0015]
In addition, when the control means controls the cleaning area so that the cleaning area is constant when any water force is set by the water force setting means, the user performs cleaning with his / her favorite cleaning feeling. Therefore, the cleaning area is constant no matter which water flow is set, so that the user does not feel a decrease in the feeling of soiling or a decrease in the sensation flow rate when the water is dropped. It can give satisfaction.
[0016]
The human body cleaning device of the present invention has a swirl force around the axis of the water discharge hole as a cleaning area adjustment means, which gives the swirl force around the axis of the water discharge hole to the supplied wash water. In this state, there is provided swirl imparting means for guiding the wash water to the water discharge hole and discharging the wash water from the water discharge hole with the swirl force, and variable means for changing the degree of the swirl force. At this time, when the turning force is increased by the variable means, the cleaning area is enlarged, and when the turning force is reduced, the cleaning area is reduced. Since the swirling force of the swirling water is applied to the feed water cleaning water, it is not necessary to move the water discharging holes and the nozzles having the water discharging holes. Therefore, the cleaning water can be swirled and discharged without moving the nozzle or changing the water discharge hole diameter, and the cleaning range is expanded to a two-dimensional shape determined by the swirling. Here, by having variable means for changing the degree of turning force, the cleaning area can be changed without moving the nozzle or changing the diameter of the water discharge hole. Since no special equipment such as a motor required for moving the nozzle is required, the apparatus can be simplified and downsized, and the apparatus can be saved in space and cost can be reduced. In addition, since a switching mechanism that requires fine adjustment necessary for changing the water discharge hole diameter is not required, the apparatus can be simplified, downsized, and the apparatus can be prevented from malfunctioning, and the apparatus can be reduced in space and cost. As described above, the entire human body cleaning apparatus can be reduced in size and cost.
[0017]
At this time, the control means controls the variable means to increase the turning force as the water flow decreases. As the swirl force increases, the cleaning area increases, so under such control, the force to expand the cleaning area as the water flow decreases is applied to the cleaning water, so the cleaning area is reduced even if the water flow decreases. In addition, when the water is dropped, the user does not feel a decrease in “feeling of dirt” and “feeling flow rate”, and the user can be satisfied.
[0018]
Next, the swirl imparting means includes a swirl imparting chamber formed in the nozzle and a cleaning water in the swirl imparting chamber so that the cleaning water flowing into the swirl imparting chamber swirls along the inner wall surface of the swirl imparting chamber. It can consist of introduction means for introducing.
[0019]
If it carries out like this, only by introduce | transducing washing | cleaning water into a rotation provision chamber by an introduction means, the swirl force along the inner wall surface of a rotation provision chamber can be provided to water supply washing | cleaning water, and swirling water discharge can be aimed at. Therefore, since no special electric equipment such as a motor is required for applying the turning force, energy saving can be achieved. In this case, in order to make the swirl force variable, the flow rate and flow rate of the cleaning water introduced into the swirl imparting chamber may be made variable.
[0020]
The swivel imparting chamber is connected to the swivel imparting chamber so that the axial center thereof is directed, and the swivel imparting chamber is provided with an axial center directing conduit for flowing cleaning water into the swirl imparting chamber. It is also possible to have an eccentric conduit through which the cleaning water flows into the chamber, and the variable means may have an adjusting means for adjusting the cleaning water flow rate in the eccentric conduit and the axially directional conduit. By doing so, the washing water behavior in the swirl imparting chamber is almost determined by the flow rate ratio between the eccentric pipe and the axially directional pipe, so that the swirl force is approximately independent of the feed water flow rate of the wash water through the adjustment of the flow ratio. And the setting of the cleaning range can be made. When the degree of turning force is changed by such a method, the following effects can be obtained. If the swirl force level is changed depending on the flow rate of the wash water introduced into the swirl chamber, the wash area, i.e., the swirl force level here, is changed independently of the water supply flow rate to the water discharge hole. A complicated mechanism such as a structure that reduces the flow rate of the air itself, for example, an adjustment mechanism that changes the cross-sectional area of the inflow path flowing into the swirl chamber, or an adjustment mechanism that adjusts the feed water pressure itself is required. When taking the form as in the present invention, the washing area can be changed independently of the water supply flow rate to the water discharge hole without requiring such a complicated mechanism. That is, the apparatus can be simplified, downsized, space saving, and cost reduction can be achieved.
[0021]
Furthermore, the following aspect can be taken in the human body washing apparatus of the present invention described above and various aspects thereof. That is, the adjusting means can be configured integrally with the feed water flow rate adjusting means at the nozzle rear end. This makes it possible to reduce the size and simplification of the apparatus, thereby saving space and reducing costs.
[0022]
Furthermore, the following aspect can be taken in the above-described human body washing apparatus of the present invention and various aspects thereof. That is, it can have a pulsation wave generating means for generating a pulsating wave centered on the water supply pressure of the water supply means in the feed water washing water from the water supply means. By so doing, high-pressure water discharge of the cleaning water occurs only intermittently, so that the amount of cleaning water can be reduced during cleaning. Moreover, in general, in a human body cleaning apparatus that cleans a local body part, warmed cleaning water is discharged to alleviate the discomfort when the cleaning water hits the local part. Therefore, if the flow rate is small as described above, the capacity of the heat source necessary for warming the cleaning water to a predetermined temperature can be reduced, and a high power saving effect can be obtained. In other words, since it is only necessary to use a small and small-capacity heater, it is possible to reduce the size of the warm water heating mechanism and thus the size of the device itself.
[0023]
Here, suppose that the washing area adjusting means is not used, and the pulsation generating means, the water force setting means, and the feed water flow rate adjusting means are used to add pulsation to the washing water to intermittently discharge the washing water, and When cleaning the human body with a weakening of the water, as described above, when the water is dropped, the narrowing of the cleaning area appears more conspicuously than in the case of cleaning with a continuous flow. A drop in “feeling of falling” and a drop in “water volume” will also be noticeable. However, if the washing area adjusting means is used here to apply a force to the washing water to enlarge the washing area as the water flow falls to prevent the washing area from being narrowed, such a problem can be avoided. That is, it is possible to perform cleaning with satisfactory user's satisfaction without reducing the cleaning area while saving water, saving energy and saving space by the pulsating wave generating means.
[0024]
Furthermore, the following aspect can be taken in the above-described human body washing apparatus of the present invention and various aspects thereof. That is, it has a cleaning area setting means that allows a user to set his / her favorite cleaning area independently of the water flow, and the control means supplies water to the spout according to the water force input by the water force setting means. While controlling the flow rate, the cleaning area of the cleaning water can be controlled to be kept at the area input by the cleaning area adjusting means. In the conventional human body cleaning device, the cleaning area follows the water flow, but in the human body cleaning device of the present invention, it becomes possible to set the cleaning area independently of the water flow, so that the desired water force and still the favorite Cleaning can be performed with the cleaning area.
[0025]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the human body cleaning apparatus according to the present invention will be described based on examples. First, the first embodiment will be described below. FIG. 1 is a perspective view when the human body cleaning device 300 of the present invention is installed in a toilet. The user performs cleaning with the cleaning water discharged from the cleaning nozzle 1 and operates the human body cleaning apparatus 300 at the operation unit 7 in the drawing. In addition, the perspective view at the time of installing the human body washing | cleaning apparatus 300 of the 2nd Example mentioned later and the 3rd Example in a toilet bowl is also the same as that of FIG.
[0026]
As shown in the block diagram of FIG. 2, the human body cleaning device 300 of the first embodiment includes a water supply unit 5, a heat exchange unit 4, a water supply flow rate adjustment unit 3, a cleaning area adjustment unit 2, from the external water supply source side. The cleaning nozzle 1 is provided. The washing water is taken in from the outside by the water supply unit 5 and sent to the heat exchange unit 4. The washing water is warmed by the heat exchange unit 4 and sent to the feed water flow rate adjustment unit 3. The feed water flow rate adjustment unit 3 adjusts the flow rate of the cleaning water to the downstream side, and sends the adjusted cleaning water flow rate to the cleaning area adjustment unit 2. The cleaning area adjustment unit 2 supplies cleaning water to the cleaning nozzle 1, and at that time, adjusts the way of supplying water as described later, and then sends the cleaning water to the cleaning nozzle 1.
[0027]
Moreover, the operation part 7 for a user to send a signal with respect to the electronic control apparatus 6 which controls these units, and the electronic control apparatus 6 is provided.
The operation unit 7 includes a butt washing button 103 for instructing the human body washing apparatus to start and stop the butt washing of the human body, a bidet washing button 104 for instructing the start and stop of the bidet washing, A water temperature adjustment button 102 for washing the human body at the water temperature and a water force adjustment button 101 for washing the human body at a desired water pressure.
[0028]
The electronic control unit 6 controls the water supply unit 5 in response to an input from the buttocks cleaning button 103 or the bidet cleaning button 104 of the operation unit 7. The water supply unit 5 takes in the cleaning water from the outside and sends it to the heat exchanging unit 4 when the user sends an instruction to start cleaning with the buttocks cleaning button 103 or the bidet cleaning button 104.
[0029]
Further, the electronic control device 6 controls the heat exchange unit 4 in accordance with an input from the water temperature adjustment button 102 of the operation unit 7. The heat exchange unit 4 warms the wash water to the temperature input by the user with the water temperature adjustment button 102, and then sends it to the feed water flow rate adjustment unit 3.
Further, the electronic control device 6 controls the feed water flow rate adjustment unit 3 and the cleaning area adjustment unit 2 in accordance with an input from the water flow adjustment button 101 of the operation unit 7. Details of the control at that time will be described later.
[0030]
The cleaning nozzle 1 has a nozzle head 200 at the tip thereof, and a butt outlet hole 201 for discharging cleaning water for butt cleaning, as shown in a cross-sectional view in FIG. 3A and a top view in FIG. And a bidet water discharge hole 202 for discharging cleaning water for bidet cleaning. Further, the cleaning nozzle 1 has a butt cleaning water vortex chamber 203 that imparts swirl to the washing water for butt washing, and a bidet washing water vortex chamber 204 that imparts swirl to the cleaning water for bidet cleaning. The butt washing water vortex chamber 203 communicates with the butt washing water discharge hole 201, and the bidet washing water vortex chamber 204 communicates with the bidet water discharge hole 202. Further, the cleaning nozzle 1 serves as a cleaning water nozzle supply path as an eccentric path 205 eccentrically connected to the buttocks cleaning water vortex chamber 203 and a shaft connected to the buttocks cleaning water vortex chamber 203 with its axis oriented. There are three core-directed paths 206 and a bidet path 207 that is eccentrically connected to the bidet washing water vortex chamber 204.
[0031]
Here, an air gap chamber 208 is formed between the buttocks washing water vortex chamber 203 and the butt washing water vortex chamber 201 and the bidet washing water vortex chamber 204 and the bidet fountain water hole 202, and air is supplied to the washing water in the air gap chamber 208. It may be involved and discharged. This makes it possible to add a more comfortable feeling of washing and softness. FIG. 3 shows the nozzle head 200 having the air gap chamber 208.
[0032]
A water discharge form when the cleaning water is discharged from the nozzle will be described.
Consider a case where cleaning water is supplied simultaneously to both of these paths while adjusting the flow rate Q1 of the eccentric path 205 and the flow rate Q2 of the axial center directing path 206.
[0033]
When the flow rate Q1 and the flow rate Q2 are adjusted in the relationship of Q1 >> Q2, the washing water having a large flow rate supplied from the eccentric path 205 determines the behavior of the buttocks washing water vortex chamber. The washing water that has flowed into the water swirls within the washing water swirl chamber as indicated by the arrow SY in FIG. Since the water discharge form is a cone, it can be cleaned with a wide cleaning area SMc as shown in FIG.
[0034]
When the flow rate Q1 and the flow rate Q2 are adjusted so that Q2 approaches Q1, the influence of the cleaning water from the eccentric path 205 on the behavior of the vortex chamber is reduced. Therefore, when the flow rate is adjusted in this way, the washing water flowing into the vortex chamber from both paths swirls in the vortex chamber as indicated by the arrow SY in the figure, but the swirl degree becomes small, and depending on the swivel degree As shown in FIG. 4, cleaning is performed with SMb narrower than SMc.
[0035]
When the flow rate Q1 and the flow rate Q2 are adjusted according to the relationship of Q1 << Q2, the washing water having a large flow rate supplied from the axial center-directed path 206 determines the behavior of the buttocks washing water vortex chamber. The washing water that has flowed into the water vortex chamber is substantially swung in the buttocks washing water vortex chamber and travels substantially vertically upward, and is discharged straight from the butt water discharge hole 201. Therefore, the washing water is narrow as shown in FIG. Cleaning is performed with the cleaning area SMa.
[0036]
In FIG. 4, the bidet water discharge hole 202, the bidet washing water vortex chamber 204, and the bidet path 207 are omitted.
The washing water that has flowed into the bidet washing vortex chamber exhibits the same behavior as the washing water that has flowed into the buttocks washing water vortex chamber 203 via the eccentric path 205 and is discharged in a spiral shape.
[0037]
In the present invention, water is supplied to the eccentric path 205 and the axial center directing path 206 while adjusting the ratio of the flow rates Q1 and Q2 for each path by the cleaning area adjusting unit 2 described later. Further, as described above, water discharge with a wider cleaning area can be realized as the flow rate Q1 is increased, and water discharge with a smaller cleaning area can be realized as the flow rate Q2 is increased. Therefore, when the cleaning nozzle 1 and the cleaning area adjustment unit 2 are used, The width of the area can be adjusted.
[0038]
As described above, the cleaning area adjustment unit 2 supplies cleaning water to the eccentric path 205, the axial center directing path 206, and the bidet path 207 of the cleaning nozzle 1, and both paths for the eccentric path 205 and the axial center directing path 206 are provided. However, it is configured to adjust the flow rates Q1 and Q2 for each path when water is supplied. When water is supplied to the bidet path 207, water is supplied only to the bidet path 207. The specific structure is as follows.
[0039]
As shown in FIG. 5, from the nozzle side, the cleaning area adjustment unit 2 is selectively connected to the stator 2a having communication holes communicating with the respective paths in the nozzle and the communication holes of the stator 2a rotated for channel switching. The rotor 2b to be opened, a coupling 2d for transmitting rotation to the rotor 2b, and a spring 2c for biasing the rotor 2b toward the stator 2a are provided.
[0040]
In the stator 2a, as shown in FIG. 6A, the first communication hole 2f communicating with the eccentric path 205 in the cleaning nozzle 1 and the second communication hole 2g communicating with the axial center directing path 206 are sequentially provided in the arrow L direction. The third communication hole 2h communicating with the bidet path 207 is opened.
[0041]
As shown in FIG. 6 (b), the rotor 2b has a notch 2i that can selectively open the communication holes opened in the stator 2a, and the communication holes are formed by overlapping the notches 2i with the communication hole openings. Open. The notch 2i can overlap with both the first communication hole 2f and the second communication hole 2g. At the same time, the notch 2i does not overlap the first communication hole 2f and the second communication hole 2g. It has a width that can overlap only with the three communication holes 2h.
[0042]
In such a structure of the stator 2a and the rotor 2b, the rotor 2b is rotated in the direction of the arrow R with respect to the stator 2a, and the notch 2i of the rotor 2b, the first communication hole 2f, and the opening of the second communication hole 2g are formed. When the overlapping state is continuously changed, the area where the opening of the first communication hole 2f is opened is increased, and conversely, the area where the opening of the second communication hole 2g is opened is reduced. At this time, the amount of water supply Q1 to the eccentric path 205 increases, and the amount of water supply Q2 to the axis-oriented path 206 decreases. On the other hand, when the rotor 2b is rotated in the direction of the arrow L, the open area of the opening of the first communication hole 2f is reduced, and accordingly, the open area of the opening of the second communication hole 2g is increased.
[0043]
At this time, the water supply amount Q1 to the eccentric path 205 decreases, and the water supply amount Q2 to the axial center directing path 206 increases. This makes it possible to continuously adjust the feed water flow rates Q1 and Q2 to the eccentric path 205 and the axial center directing path 206. Specifically, as shown in FIG. 6C, when the notch 2i is located at the center between the first communication hole 2f and the second communication hole 2g, the rotation angle is 0 °. When the shapes of the communication hole 2f and the second communication hole 2g are the same, when the rotor 2b is rotated in the arrow R direction with respect to the stator 2a as shown in FIG. 6D, the first communication hole Since the open area of 2f becomes large and the open area of the second communication hole 2g becomes small at the same time, it is possible to increase the feed water flow rate to the eccentric path 205 and decrease the feed water flow rate to the axial center directing path 206. it can. When the rotor 2b is rotated in the arrow L direction with respect to the stator 2a as shown in FIG. 6 (e), the water supply flow rate to the eccentric path 205 is decreased and the water supply flow rate to the axial center directing path 206 is increased.
[0044]
Here, when the rotation angle is 0 ° from the position of the rotation angle 0 ° in FIG. 6C, water is supplied to only the eccentric path 205 and only the axial center directing path 206, respectively. FIG. 7 shows an example of a change in the ratio of the feed water flow rate of the cleaning water to the eccentric path 205 and the axial center directing path 206 when the rotation angle is 0 degrees in the L direction and the R direction from the position of the rotation angle 0 ° in c). Shown in In this way, the ratio of the feed water flow rate to the eccentric path 205 and the axial center directing path 206 can be adjusted by the cleaning area adjustment unit 2.
[0045]
Further, as shown in FIG. 6 (f), the rotor 2 b can make all of the notches that it has not overlap with any of the communication holes of the stator 2 a, thereby supplying cleaning water to the nozzles. You can also stop.
[0046]
In addition, the rotor 2b is configured to shield each communication hole as shown in FIG. 6 (f) by positioning the notch 2i between the adjacent communication holes. For the convenience of discharging (draining) the water remaining in the nozzle, the rotor 2b is provided with notches 2j that can overlap all the communication hole openings as shown in FIG. 6 (g). When draining, all the communication holes can be opened by the notches 2i and 2j as shown in FIG. 6 (h).
[0047]
As shown in FIG. 5, the coupling 2d is mounted on the rotating shaft of the drive motor 2e of the cleaning area adjusting unit 2, and the rotating shaft pin 2k is positioned in the slit 21. In addition, the coupling 2d positions the rotation key 2m in the slit 2n of the rotor 2b. Therefore, when the drive motor 2e rotates forward and backward, the rotation is transmitted to the coupling 2d by the rotation shaft pin 2k and to the rotor 2b by the rotation key 2m. Then, the notch 2i selectively opens each communication hole as described above by the rotation of the rotor 2b, and adjusts the flow rate of the cleaning water fed into each path of the nozzle. The electronic control unit 6 controls the rotation of the drive motor 2e, and the flow rate of the cleaning water fed into each path of the nozzle as described above is adjusted by the rotation of the drive motor 2e.
[0048]
Here, when the water force is set by the water force setting button of the operation unit 7 and the signal is transmitted to the electronic control device 6, the electronic control device 6 sets the water supply flow rate adjustment unit 3 and the cleaning area adjustment unit 2. The behavior of the cleaning water from the cleaning nozzle 1 at that time and the influence on the cleaning feeling will be described below.
[0049]
As an example, a case where adjustment is possible in seven stages from Step 7 with the strongest water to Step 1 with the weakest water is given. When the water flow of step 1 is set by the water flow setting button of the operation unit 7 during the butt washing, the feed water / water supply flow rate adjustment unit 3 sends the wash water of the flow rate t1 to the wash area adjustment unit 2 and the wash area adjustment. It is assumed that the unit 2 supplies the cleaning water sent from the feed water / water supply flow rate adjustment unit 3 to the eccentric path 205 and the axial center directing path 206 at a ratio of a1: b1. Here, a1 + b1 = 1. Similarly, when the water flow of steps 2, 3, 4, 5, 6, and 7 is set by the water flow setting button of the operation unit 7, the water supply flow rates to the cleaning area adjustment unit 2 are t2, t3,. The distribution ratio of the feed water flow rate to 205 and the axial center directing path 206 is a2: b2, a3: b3... A7: b7. At this time, a2 + b2 = a3 + b3 =... A7 + b7 = 1 as in the above case.
[0050]
Here, in order to solve the narrowing of the washing area in the weak water area, which is a problem in the human body washing apparatus so far, the values of t1 to t7, a1 to a7, and b1 to b7 are the water feelings required in each water step. The cleaning area is set to be constant while maintaining First, the water supply flow rate to the cleaning area adjustment unit 2, which needs to be reduced as the water flow step becomes smaller, so the flow rate to the cleaning area adjustment unit 2 is decreased. That is, t1 <t2 ... <t7. If the ratio of the amount of water supplied to the eccentric path 205 and the amount of water supplied to the axial center directing path 206 is constant, the water area is reduced as described above, and the cleaning area is reduced. In order to prevent this and keep the washing area constant in each water area, as the water step becomes smaller, the ratio of the amount of water supplied to the eccentric path 205 to the total amount of water supplied to the nozzle is increased, and the amount of swirling washing water relative to the total amount of washing water Increase the percentage of As the ratio of the amount of swirling washing water increases, the washing area increases as described above, so that the reduced washing area can be compensated for because the water flow has dropped. This avoids narrowing of the cleaning area due to the drop in water flow.
[0051]
Comparing the ratio of the feed water flow rate to the eccentric path 205 and the axis-oriented path 206 for each water step, a1>a2...> A7 and b1 <b2. FIG. 6 shows changes in the feed water flow rate (t1 to t7) to the cleaning area adjustment unit 2 and the feed water flow rate ratios (a1 to a7, b1 to b7) to the eccentric path 205 and the axial center directing path 206 with respect to the water step change as described above. This is shown in Fig. 8 (a). And the washing area for every water step produced by the relationship of a1-a7, b1-b7 like (a) of FIG. 8 is compared with the washing area for each water step in the conventional human body washing apparatus, and (b) of FIG. ). In the conventional human body cleaning apparatus, the cleaning area is narrowed as the water step is lowered, but in the human body cleaning apparatus 300 of the present invention, the cleaning area is constant in any water step.
[0052]
Further, FIG. 8 (b) shows the change in the flow rate of the cleaning water perceived by the body, which is obtained by the relationship between the cleaning area for each water flow step and the actual flow rate of the cleaning water, as shown in FIG. c). In the conventional human body washing apparatus, as the water flow step is lowered, the washing area is reduced as shown in FIG. 8B in addition to the actual reduction of the water supply flow rate, so that the washing that can be experienced when the water flow falls due to the synergistic effect of these two changes. The water flow rate was extremely low. Here, as described above, it is considered that the flow rate of the cleaning water to be felt can be felt small even when cleaning is performed at the same flow rate when the cleaning area is small. However, in the human body washing apparatus 300 of the present invention, the washing area does not decrease even if the water flow falls, so the flow rate experienced is equal to the actual washing water flow rate, and the water flow drops as in the conventional case as shown in FIG. However, the flow rate experienced is not drastically reduced.
[0053]
From FIG. 8B and FIG. 8C, it can be seen that by implementing the present invention, it is possible to avoid the narrowing of the cleaning area and the extreme decrease in the flow rate of the cleaning water that can be experienced as the water flow decreases.
The specific values of t1 to t7, a2 to a7, and b1 to b7 set the water supply flow rate to the cleaning area adjustment unit 2 that realizes a water feeling in each water step, and supply water to each cleaning area adjustment unit 2 The ratio of the water supply amount to the turning path and the axial center directing path 206 where the cleaning area becomes constant when cleaning is performed at a flow rate is obtained, and the ratio of the water supply amount to the turning path and the axial center directing path 206 in each water flow step is calculated. Determined by determining the ratio.
[0054]
The shape of the notch 2i, the first communication hole 2f, and the second communication hole 2g of the rotor 2b and the arrangement on the stator 2a have a ratio of the amount of water supplied to the turning path and the axial center directing path 206 in each water step. The shape and arrangement are realized in the positional relationship between 2b and the stator 2a.
[0055]
The electronic control device 6 supplies water to the cleaning area adjustment unit 2 with the amount of water corresponding to the water step input to the water supply flow rate adjustment unit 3 in response to the water step input from the water setting button of the operation unit 7 during the butt cleaning. At the same time, the output of the drive motor 2e of the cleaning area adjustment unit 2 is controlled to adjust the overlapping state of the rotor 2b and the stator 2a, and to the eccentric path 205 and the axial center directing path 206 corresponding to the input water step. The ratio of feed water flow rate is realized.
[0056]
In addition, when the bidet cleaning button 104 of the operation unit 7 is pressed, the electronic control unit 6 has a rotor 2b in which the notch 2i of the rotor 2b opens the third communication hole 2h of the stator 2a in the cleaning area adjustment unit 2. The operation of the drive motor 2e is controlled so that the stator 2a overlaps, and the amount of cleaning water supplied to the cleaning area adjustment unit 2 by the water supply flow rate adjustment unit 3 is controlled according to the water force input from the water force setting button.
[0057]
The structure and control in the case where the water flow step is changed step by step have been described above. However, the operation unit 7 that can continuously set the water flow is used to continuously adjust the water supply flow rate to the cleaning area adjustment unit 2. Water supply flow rate adjustment unit 3 having a simple structure, cleaning area adjustment unit 2 having a structure that continuously adjusts the water supply amount ratio to the turning path and the axial center directing path 206, and an electronic control device that enables control to realize the cleaning area adjustment unit 2 6 is also acceptable.
[0058]
The above shows the configuration and control in the case where the cleaning area is controlled according to the water step only in the butt cleaning, but the bidet cleaning also forms a bidet axis oriented path similar to the butt cleaning, and also in the stator 2a. A fourth communication hole that communicates with the bidet axis directing path 206 may be provided so that the cleaning area can be adjusted in the same manner as the butt cleaning.
[0059]
Narrowing of the washing area by reducing the water flow by the above configuration and control is prevented, thereby reducing the washing efficiency due to the narrowing of the washing area, the feeling of `` stained dirt '', and `` the amount of water experienced '' Thus, satisfactory washing can be performed no matter what water force the user performs.
[0060]
Here, by devising the shape of the communication hole of the rotor 2b and the stator 2a, the cleaning area adjusting unit 2 is provided with a flow rate adjusting function, and the cleaning area adjusting unit 2 and the feed water flow rate adjusting unit 3 are connected to the rear end of the cleaning nozzle 1. It is also possible to integrate them. A unit having such a function of adjusting both the flow rate and the cleaning area is referred to as a flow rate / area adjustment unit 9, and a block diagram in this case is shown in FIG.
[0061]
The flow rate of the entire cleaning water is determined by the resistance value of the flow path through which the cleaning water passes. That is, if the resistance value of the portion of the stator 2a and the rotor 2b is changed by changing the overlapping state of the stator 2a and the rotor 2b, the flow rate of the entire cleaning water can be changed. That is, the overlapping state of the rotor 2b and the stator 2a in each water step is determined by the resistance values of the stator 2a and the rotor 2b that realize the washing water flow rate in each water step, the eccentric path 205, and the axis-oriented path 206. It is set so that both adjustments of the feed water flow ratio are realized.
[0062]
FIG. 10 shows an example of such a structure. As shown in FIG. 10A, the stator 2 a has a first communication hole 2 f that communicates with the eccentric path 205 in the cleaning nozzle 1 in order in the direction of arrow L, and a second communication hole that communicates with the axial center directing path 206. 2g, a third communication hole 2h communicating with the bidet path 207 is opened.
As shown in FIG. 10B, the rotor 2b has a notch 2o and a notch 2p. When these two notches are butt-washed, the first communication hole 2f and the second communication hole 2g of the rotor 2b The opening area of each of the third communication holes 2h is adjusted, and the notch 2o adjusts the opening area of the third communication hole 2h during bidet cleaning.
[0063]
First, the state of the overlap state changes with the change in the water flow of the stator 2a and the rotor 2b in the buttocks cleaning. When the water flow is increased, the state is changed to the direction of the arrow R shown in FIG. The rotor 2b is rotated in the direction of. The second communication hole 2g has a shape that becomes narrower as it goes in the arrow L direction and wider as it goes in the R direction. Specifically, it will be seen how the opening areas of the first communication hole 2f and the second communication hole 2g change. When the water force is lowered from the state of FIG. 10C, the rotor 2b is rotated in the direction of the arrow L, so that the state shown in FIG. At this time, since the opening area of the second communication hole 2g is reduced, the total of the opening areas of the first communication hole 2f and the second communication hole 2g is reduced. By reducing the total opening area of the first communication hole 2f and the second communication hole 2g, the resistance value of the stator 2a and the rotor 2b increases, so the amount of water in the entire cleaning water decreases and the water force decreases. In other words, the water will drop. Further, since the ratio of the opening area of the first communication hole 2f to the opening area of the second communication hole 2g is increased, the flow rate ratio between the first communication hole 2f and the second communication hole 2g is the first communication hole. The ratio on the 2f side changes to the increasing side. That is, the ratio of the feed water flow rate to the eccentric path 205 increases. That is, a force acts on the side where the cleaning area is to be increased, thereby preventing the cleaning area from being narrowed when the water is dropped.
[0064]
On the contrary, when the water force is raised, FIG. 10 (c), when the water force is lowered, the rotor 2b is rotated in the direction of the arrow R, so that FIG. 10 (e) is obtained. At this time, since the opening area of the second communication hole 2g increases, the sum of the opening areas of the first communication hole 2f and the second communication hole 2g increases. By increasing the total opening area of the first communication hole 2f and the second communication hole 2g, the resistance value of the stator 2a and the rotor 2b decreases, so that the amount of water in the entire cleaning water increases and the water power increases. Further, since the ratio of the opening area of the first communication hole 2f to the opening area of the second communication hole 2g is reduced, the flow rate ratio between the first communication hole 2f and the second communication hole 2g is the first communication hole. The ratio on the 2f side changes to the decreasing side. That is, the ratio of the feed water flow rate to the eccentric path 205 decreases, and the ratio of the feed water flow rate to the axial center directing path 206 increases.
[0065]
By adjusting the overlap between the rotor 2b and the stator 2a by such a structure, both the flow rate of the cleaning water and the ratio of the feed water flow rate to the eccentric path 205 and the feed water flow rate to the axial center directing path 206 can be adjusted. I can do it.
[0066]
An example of setting the overlapping state for each water step of the rotor 2b and the stator 2a is shown below. The overlapping state of the rotor 2b and the stator 2a at the step with the lowest water flow is shown in FIG. 10 (d), and the rotor 2b rotates relative to the stator 2a in the direction of arrow R as the water flow rises from this state. Assume that FIG. 10E is set as the overlapping state in the step with the highest water flow. In such a setting, the lower the water flow, the smaller the total amount of washing water, that is, the washing with weak water flow is possible, and the ratio of the feed water flow rate to the eccentric path 205 in the total amount of washing water is large. However, it is possible to perform cleaning with a fixed cleaning area, and avoid the narrowing of the cleaning area in the low water area. Further, when cleaning is not performed, the notch 2p and notch 2o of the rotor 2b are in a state as shown in FIG. 10 (f) where they do not overlap any communication hole of the stator 2a. Thus, it is possible to realize a state where water is not supplied to any path in the nozzle.
[0067]
Next, let's look at the case of bidet cleaning. In the stator 2a, the third communication hole 2f has a shape that is narrower as it goes in the arrow L direction and wider as it goes in the R direction. If the notch 2o of the rotor 2b is set so as to overlap the third communication hole 2h of the stator 2a as shown in FIGS. 10 (g) and 10 (h), cleaning water is supplied to the bidet path 207, and the bidet Cleaning is possible. Further, in bidet washing, the rotor 2b rotates in the direction of arrow L from the state shown in FIG. 10 (g) as the step transitions from the step with the lowest water flow to the step with the highest water flow for each water step. Since the opening area of the third communication hole 2h opened by the notch 2o can be gradually increased for each water step, it is only necessary to adjust the overlapping state of the stator 2b and the rotor 2a. The water flow of bidet washing can be adjusted.
[0068]
Thus, when the washing area adjustment unit 2 and the feed water flow rate adjustment unit 3 are integrated at the rear end of the washing nozzle 1, space can be saved as compared with the case where these units are separately installed, and consequently the human body washing apparatus The entire 300 can be reduced in size.
[0069]
Next, a description will be given of the configuration and control of the second embodiment that realizes a configuration in which the cleaning area is adjusted according to the water force in the human body cleaning apparatus 300 that performs pulsation to the cleaning water, discharges water, and performs cleaning. To do.
As shown in FIG. 11, the human body cleaning device 300 includes a water supply unit 5, a heat exchange unit 4, a water supply flow rate adjustment unit 3, a pulsation generation unit 8, a cleaning area adjustment unit 2, and a cleaning nozzle 1 from the external water supply source side. Is provided. The washing water is taken in from the outside by the water supply unit 5 and sent to the heat exchange unit 4. The washing water is warmed by the heat exchange unit 4 and sent to the feed water flow rate adjustment unit 3. The feed water flow rate adjustment unit 3 adjusts the flow rate of the wash water to the downstream side, and sends the adjusted wash water flow rate to the pulsation generating unit 8. The pulsation generating unit 8 sends the cleaning water to the cleaning area adjusting unit 2 in a pulsating flow state. The cleaning area adjustment unit 2 supplies cleaning water to the cleaning nozzle 1.
[0070]
Moreover, the operation part 7 for a user to send a signal with respect to the electronic control apparatus 6 which controls these units, and the electronic control apparatus 6 is provided.
The operation unit 7 includes a butt washing button 103 for instructing the human body washing apparatus to start and stop the butt washing of the human body, a bidet washing button 104 for instructing the start and stop of the bidet washing, A water temperature adjustment button 102 for washing the human body at the water temperature and a water force adjustment button 101 for washing the human body at a desired water pressure.
[0071]
The electronic control unit 6 controls the water supply unit 5 in response to an input from the buttocks cleaning button 103 or the bidet cleaning button 104 of the operation unit 7. The water supply unit 5 takes in the cleaning water from the outside and sends it to the heat exchanging unit 4 when the user sends an instruction to start cleaning with the buttocks cleaning button 103 or the bidet cleaning button 104.
[0072]
Further, the electronic control device 6 controls the heat exchange unit 4 in accordance with an input from the water temperature adjustment button 102 of the operation unit 7. The heat exchange unit 4 warms the wash water to the temperature input by the user with the water temperature adjustment button 102, and then sends it to the feed water flow rate adjustment unit 3.
[0073]
The electronic control device 6 controls the water supply flow rate adjustment unit 3, the pulsation generation unit 8, and the cleaning area adjustment unit 2 in accordance with an input from the water flow adjustment button 101 of the operation unit 7. Details of the control at that time will be described later.
[0074]
The structure of each unit other than the pulsation generating unit 8 is the same as that of the first embodiment. Further, the other realizable modes described in the first embodiment are also possible in the second embodiment.
As shown in FIG. 12, the pulsation generating unit 8 reciprocates in the cylinder 8a forming a part of the water supply path, and the reciprocating motion causes pulsation in the flow of cleaning water, thereby supplying the cleaning water to the cylinder 8a. It consists of a plunger 8b that pumps downstream, an electromagnetic solenoid 8c that drives the plunger 8b to reciprocate, and a check valve 8d that is provided in the cylinder 8a and allows the wash water to pass downstream. In this way, the plunger 8b can be reciprocated in the cylinder 8a through the excitation control of the electromagnetic solenoid 8c, thereby causing pulsation to flow in the wash water and pumping the wash water in a pulsating flow state.
[0075]
In such a structure, assuming that the pulsation period MT shown in FIG. 19 is the period T1 and the on-time of the pulse signal is t1, the duty ratio is expressed by (t1 / T1) × 100 (%). When the pressure pulsation as shown in FIG. 19 occurs, the amount of the washing water decreases to a value represented by the duty ratio as compared with the continuous flow. As shown in FIG. 19, the amount of water in such a pulsating flow increases and decreases in the range from the maximum flow rate Qmax to the minimum flow rate Qmin, and the flow rate also increases and decreases in the range from the maximum flow rate Vmax to the minimum flow rate Vmin.
[0076]
The frequency and duty ratio of the pulse wave applied to the electromagnetic solenoid 8 c are controlled by the electronic control device 6.
[0077]
With such a structure, periodic fluctuations in the flow of the cleaning water are caused in the cleaning water, and the cleaning water is swirled in the buttocks cleaning water vortex chamber 203 as described above, and then discharged from the butt discharge hole 201, Periodic washing water discharge is in the following form. The water wash water from the water discharge hole reflects the flow state of the wash water guided to the water discharge hole. If the wash water is guided to the water discharge hole in a uniform flow (continuous flow), the wash water is continuously discharged from the water discharge hole to form a continuous flow discharge form. However, when the cleaning water is guided to the water discharge hole in a state where pulsation is added to the cleaning water, a periodic water discharge form reflecting the pulsation is obtained.
[0078]
Therefore, the wash water is guided to the water discharge hole in a pulsating flow state, and the water discharge form from the water discharge hole has a pulsation that causes the swirling state of the wash water and the pulsating flow reflects and the amount of water discharged increases or decreases. It will be a thing. When such a water discharge form is captured instantaneously, the wash water discharged when the amount of discharged water is large becomes a water mass, and this water mass is connected with the wash water discharged when the amount of discharged water is small. . When washing water is discharged with pulsation added in this way, the force applied to the washing surface, that is, the instantaneous pressure peak value, becomes larger than that of a continuous flow having the same flow rate. Therefore, by using the pulsating flow, it is possible to obtain an advantage that the same washing pressure can be obtained with a smaller amount of water than the continuous flow. Moreover, in general, in a human body cleaning apparatus that cleans a local body part, warmed cleaning water is discharged to alleviate the discomfort when the cleaning water hits the local part. Therefore, if the flow rate is small as described above, the capacity of the heat source necessary for warming the cleaning water to a predetermined temperature can be reduced, and a high power saving effect can be obtained. In other words, since it is only necessary to use a small and small-capacity heater, it is possible to reduce the size of the heat exchange unit 4 and hence the size of the apparatus itself.
[0079]
Here, in order to solve the narrowing of the cleaning area due to the decrease in the water force, which was a conventional problem, the water force is set by the water force setting button of the operation unit 7, and the signal is transmitted to the electronic control device 6. In this case, how the electronic control unit 6 controls the feed water flow rate adjusting unit 3, the pulsation generating unit 8, and the cleaning area adjusting unit 2, and further, the behavior of the cleaning water from the cleaning nozzle 1 at that time This will be described below.
[0080]
As an example, a case where adjustment is possible in seven stages from Step 7 with the strongest water to Step 1 with the weakest water is given. When the water flow of step 1 is set by the water flow setting button of the operation unit 7 during the butt cleaning, the feed water flow rate adjusting unit 3 sends the cleaning water of the flow rate t1 to the cleaning area adjusting unit 2, and the pulsation generating unit 8 The duty ratio of the electromagnetic solenoid 8c is d1, and the cleaning area adjustment unit 2 supplies the cleaning water sent from the water supply flow rate adjustment unit 3 to the eccentric path 205 and the axial center directing path 206 at a ratio of a1: b1. It shall be. Here, a1 + b1 = 1. Similarly, when the water flow of steps 2, 3, 4, 5, 6, 7 is set by the water flow setting button of the operation unit 7, the water supply flow rates to the cleaning area adjustment unit 2 are t2, t3,. The duty ratio of 8c is d1, d2... D7, and the distribution ratio of the feed water flow rate to the eccentric path 205 and the axial center directing path 206 is a2: b2, a3: b3... A7: b7. At this time, a2 + b2 = a3 + b3 =... A7 + b7 = 1 as in the above case.
[0081]
Here, in order to solve the narrowing of the washing area in the weak water area, which is a problem in the conventional human body washing apparatus, the values of t1 to t7, a2 to a7, and b1 to b7 are the water feelings required in each water step. The cleaning area is set to be constant while maintaining First, the water supply flow rate to the cleaning area adjustment unit 2, which needs to be reduced as the water flow step becomes smaller, so the flow rate to the cleaning area adjustment unit 2 is decreased. That is, t1 <t2 ... <t7.
[0082]
Here, what kind of change occurs in the feeling of cleaning due to the duty ratio change of the electromagnetic solenoid 8c will be described. When the duty ratio is increased, the difference between Qmax and Qmin increases, that is, the difference between Vmax and Vmin increases, and the peak value of pressure when the cleaning water hits the cleaning surface increases. Conversely, when the duty ratio is lowered, the difference between Qmax and Qmin becomes small, that is, the difference between Vmax and Vmin becomes small, and the peak value of the pressure when the cleaning water hits the cleaning surface becomes small. That is, when dropping the water force, the duty ratio of the electromagnetic solenoid 8c of the pulsation generating unit 8 is reduced. On the contrary, when the water force is increased, the duty ratio of the electromagnetic solenoid 8c of the pulsation generating unit 8 is increased.
[0083]
Thus, d1 <d2... <D7. If the ratio of the amount of water supplied to the eccentric path 205 and the amount of water supplied to the axial center directing path 206 is constant, the water area is reduced as described above, and the cleaning area is reduced. In order to prevent this and keep the washing area constant in each water area, as the water step becomes smaller, the ratio of the amount of water supplied to the eccentric path 205 to the total amount of water supplied to the nozzle is increased, and the amount of swirling washing water relative to the total amount of washing water Increase the percentage of As the swirl cleaning water increases, the cleaning area increases as described above, so that it is possible to compensate for the decreased cleaning area due to the drop of water. This avoids narrowing of the cleaning area due to the drop in water flow.
[0084]
When the ratio of the feed water flow rate to the eccentric path 205 and the axial center directing path 206 is compared for each water step, a1>a2...> A7, b1 <b2. FIG. 13 shows the state of change accompanying changes in the water flow steps t1 to t7, d1 to d7, a1 to a7, and b1 to b7. At this time, the washing area accompanying the change in the water step and the flow rate of the washing water to be experienced are almost the same as those shown in FIGS.
[0085]
The specific values of t1 to t7, d1 to d7, a1 to a7, and b1 to b7 are the water supply flow rate to the cleaning area adjustment unit 2 that realizes a water feeling in each water step and the electromagnetic solenoid 8c of the pulsation generating unit 8. The duty ratio is set, and the amount of water supplied to the turning path and the axis-oriented path 206 becomes constant when the cleaning area is constant when cleaning is performed with the flow rate of water supplied to each cleaning area adjustment unit 2 and the duty ratio of the electromagnetic solenoid 8c. The ratio is determined by determining the ratio of the amount of water supplied to the turning path and the axis-oriented path 206 at each water step.
[0086]
The shape of the notch 2i, the first communication hole 2f, and the second communication hole 2g of the rotor 2b and the arrangement on the stator 2a realize the ratio of the amount of water supplied to the eccentric path 205 and the axis-oriented path 206 in each water step. Shape.
[0087]
The electronic control device 6 supplies water to the cleaning area adjustment unit 2 with the amount of water corresponding to the water step input to the water supply flow rate adjustment unit 3 in response to the water step input from the water setting button of the operation unit 7 during the butt cleaning. And the duty ratio of the electromagnetic solenoid 8c of the pulsation generating unit 8 is adjusted, and at the same time, the output of the drive motor 2e of the cleaning area adjusting unit 2 is controlled, and the overlapping state of the rotor 2b and the stator 2a is adjusted and input. The water supply flow rate ratio to the turning path and the axial center directing path 206 according to the water flow step is realized.
[0088]
With the configuration as described above, in the second embodiment of the present invention, the effect obtained by adding pulsation to the wash water and discharging the water remains as it is, and has occurred until now when pulsation is added to the wash water and discharged. Thus, it is possible to avoid the narrowing of the cleaning area due to the decrease in water flow.
[0089]
Next, in addition to the configuration for adjusting the cleaning area according to the water flow as described above, the structure and control of the third embodiment having the cleaning area setting means that allows the user to set his / her favorite cleaning area independently of the water flow. Will be described.
[0090]
As shown in FIG. 14, the configuration is such that the cleaning area adjustment button 103 is added to the operation unit 7 in the configuration of the first embodiment, and the electronic control unit controls the cleaning area adjustment unit 2 in accordance with the input from the cleaning area adjustment button 103. To do. At that time, when the user sets a certain water force with the water force setting button 101, the washing area that is sensed when the washing water that realizes the water feeling inputted there is discharged and the washing water hits the body is used. Electronic control is performed so that the cleaning area adjustment unit 2 distributes the water supply of the cleaning water to the swiveling path of the cleaning nozzle 1 and the axial center directing path 206 so that a desired cleaning area set by the cleaning area adjustment unit 2 can be obtained. The device 6h performs control. The cleaning area adjustment unit 2 takes into account the change in the cleaning area due to the change in the water flow as described above so that the set cleaning area is realized in the set water flow, and the swivel path and the axis center directing path 206 of the cleaning nozzle 1. Set the water distribution ratio of washing water separately for each water stream.
As a result, it is possible to perform washing with a favorite water force and with a favorite washing area.
[Brief description of the drawings]
FIG. 1 is a perspective view when a human body cleaning device 300 of the present invention is installed in a toilet.
FIG. 2 is a block diagram illustrating a schematic configuration of a human body cleaning device 300 according to the first embodiment.
FIGS. 3A and 3B are a sectional view and a top view of the nozzle head 200 of the cleaning nozzle 1 included in the human body cleaning apparatus 300. FIGS.
FIG. 4 shows a state in which cleaning water is discharged from the nozzle head 200 of the cleaning nozzle 1 included in the human body cleaning apparatus 300 and a cleaning area at that time.
5 is an exploded perspective view of a main part of a cleaning area adjustment unit 2 included in the human body cleaning apparatus 300. FIG.
FIGS. 6A and 6B show the openings of the stator 2a and the rotor 2b in the cleaning area adjustment unit 2 of the human body cleaning apparatus 300. FIGS. 6C to 6C show various overlapping states of the stator 2a and the rotor 2b. Shown in (g).
7 shows the change in the distribution ratio to the eccentric path 205 and the axial center directing path 206 when the rotor 2b is rotated in the cleaning area adjustment unit 2, and the state of FIG. And for each rotation angle in the direction of arrow R.
FIG. 8A shows the flow rate of cleaning water and the distribution ratio to the eccentric path 205 and the axial center directing path 206 in each water step in the first embodiment. Further, the washing area in each water step based on the control as in (a) is compared with the washing area by the conventional human body washing apparatus, as shown in (b), and as in (b) and the control as in (a). (C) shows the flow rate of the cleaning water to be experienced for each water step obtained by a proper cleaning area.
FIG. 9 is a block diagram showing a schematic configuration of a human body cleaning device 300 of the present invention when a feed water flow rate adjustment unit 3 and a cleaning area adjustment unit 2 are integrated.
10 shows openings of the stator 2a and the rotor 2b in the cleaning area adjustment unit 2 of the human body cleaning device 300 of the present invention when the feed water flow rate adjustment unit 3 and the cleaning area adjustment unit 2 are integrated. ), Various overlapping states of the stator 2a and the rotor 2b are shown in (c) to (e).
FIG. 11 is a block diagram illustrating a schematic configuration of a human body cleaning device 300 according to a second embodiment.
12 is an exploded perspective view of a main part of a pulsation generating unit 8 included in the human body cleaning device 300. FIG.
FIG. 13 shows the cleaning water flow rate, the duty ratio, and the distribution ratio to the eccentric path 205 and the axial center directing path 206 for each water step in the second embodiment.
FIG. 14 is a block diagram illustrating a schematic configuration of a human body cleaning apparatus 300 according to a third embodiment.
FIG. 15 schematically shows a state in which cleaning water discharged from a water discharge hole in a conventional human body cleaning apparatus reaches a human body local area to be cleaned.
FIG. 16 is a monitoring result of a cleaning area change felt by a user when the water flow is changed in a conventional human body cleaning apparatus.
FIG. 17 is a monitoring result of a change in the amount of cleaning water felt when the cleaning area is changed using a human body cleaning apparatus that can change only the cleaning area at a constant flow rate.
FIG. 18 shows changes in the amount of water to be washed, the washing area, and the amount of water felt by the user in accordance with a change in water flow in a conventional human body washing apparatus.
FIG. 19 shows the flow rate of washing water with the amount of washing water added with pulsation in a human body washing apparatus that discharges washing water as a pulsating flow.
FIG. 20 is an explanatory diagram for explaining a process in which wash water discharged in a human body cleaning apparatus that discharges wash water as a pulsating flow is amplified to a pulsating flow.
FIG. 21 shows the state of the washing water flow rate and the washing water flow rate in the strong water force and the weak water force in the human body washing apparatus that discharges the washing water as a pulsating flow.
FIG. 22 shows the process of amplifying wash water spouted into a pulsating flow in the case of a weak water flow in a human body washing apparatus that discharges the washing water as a pulsating flow, in comparison with FIG.
[Explanation of symbols]
1 ... Cleaning nozzle
2. Cleaning area adjustment unit
2a ... Stator
2b ... Rotor
2c ... Spring
2d ... Coupling
2e ... Drive motor
2f ... First communication hole
2g ... Second communication hole
2h ... Third communication hole
2i ... Notch
2j ... Notch
2k Rotating shaft pin
2l ... slit
2m ... Rotary key
2n ... Slit
2o ... Notch
2p ... Notch
3 ... Water supply flow rate adjustment unit
4 ... Heat exchange unit
5 ... Water supply unit
6 ... Electronic control unit
7. Operation unit
8 ... Pulsation generating unit
8a ... Cylinder
8b ... Plunger
8c ... Electromagnetic solenoid
8d ... Check valve
9. Flow rate / area adjustment unit
101 ... Water adjustment button
102 ... Water temperature adjustment button
103 ... button to wash the buttocks
104 ... Bidet washing button
105 ... Area adjustment button
200 ... Nozzle head
201 ... Butt spout
202 ... Bidet spout
204 ... Washing water swirl chamber
205: Bidet washing water swirl chamber
205: Eccentric path
206 ... Axis oriented path
207 ... Bidet route
208 ... Air gap chamber
300 ... Human body cleaning device

Claims (4)

A human body cleaning device for discharging cleaning water from a nozzle hole to a human body,
Water force setting means for setting the water force of the washing water;
Control means for independently controlling the water supply flow rate to the water discharge hole and the washing area of the washing water according to the input from the water force setting means;
A water supply flow rate adjusting means for adjusting a water supply flow rate to the water discharge hole based on a signal from the control means;
A cleaning area adjusting means for adjusting the cleaning area of the cleaning water based on a signal from the control means ,
The cleaning area adjusting means imparts a swirling force around the axis of the water discharge hole to the supplied wash water, guides the wash water to the water discharge hole, and discharges the wash water in the state having the swirl force. A swirl imparting means for guiding the water to the hole and discharging the wash water from the water discharge hole in a state having the swivel force, and a variable means for varying the degree of the swivel force,
The human body cleaning apparatus, wherein the control means controls the variable means to increase the turning force as the water flow decreases . 2. The human body cleaning apparatus according to claim 1 , wherein the swirl imparting unit swirls along a swirl imparting chamber formed in the nozzle and cleaning water flowing into the swirl imparting chamber along an inner wall surface of the swirl imparting chamber. A human body cleaning apparatus comprising introduction means for introducing cleaning water into the swivel imparting chamber. A human body washing apparatus according to claim 1 or claim 2 wherein, characterized in that it has a pulsation generation means for generating a pulsating around the feed water pressure of the water supply means to the water washing water from said water supply means Human body cleaning device. It is a human body washing | cleaning apparatus of any one of Claims 1-3 , Comprising: It has a washing area setting means in which a user can set his favorite washing area independently of a water flow, The said control means Is to control the cleaning water cleaning area to be kept at the area input by the cleaning area adjusting means while controlling the flow rate of water supplied to the water discharge hole according to the water pressure input by the water power setting means. A human body cleaning device.

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