JP7020172B2 - Washing toilet seat device - Google Patents

Description

The present invention relates to a washing toilet seat device.

Conventionally, as this type of washing toilet seat device, a nozzle having a nozzle formed at the tip of a nozzle for ejecting washing water toward a local part of the human body, a driving means for moving the nozzle forward and backward, and a nozzle moving forward and backward are accompanied by movement of the nozzle. A shutter that opens and closes has been proposed (see, for example, Patent Document 1). In this washing toilet seat device, a rebounding portion for repelling the washing water ejected from the ejection hole of the nozzle is provided on the back surface of the shutter, and when the nozzle is advanced, the ejection hole of the nozzle is directed toward the repelling portion of the shutter. By ejecting the washing water, the nozzle is washed with the bouncing washing water.

Japanese Unexamined Patent Publication No. 2013-28902

In the above-mentioned washing toilet seat device, the nozzle is washed with the washing water ejected from the advanced nozzle and bounced off, so that the cleaning range is limited to the tip of the nozzle. Therefore, the entire length of the nozzle cannot be cleaned, and a sufficient cleaning effect cannot be obtained. In such a washing toilet seat device, it is desirable to wash the entire length because the demand for the cleanliness of the nozzle is increasing due to the recent change in the consciousness of the user. On the other hand, it is conceivable to add a dedicated cleaning device in order to clean the entire length of the nozzle, but the number of parts increases, the configuration becomes complicated, and the cost increases.

The main object of the present invention is to maintain the cleanliness of the nozzle by making it possible to clean the entire length of the nozzle without providing a dedicated cleaning device.

The present invention has taken the following measures to achieve the above-mentioned main object.

The washing toilet seat device of the present invention is a washing toilet seat device in which two nozzles for ejecting washing water to locally wash the human body are provided side by side, and a driving unit for moving the nozzles forward and backward, and the above 2 A covering member that can cover at least a part of the area above the nozzles of the book, and a cleaning that is ejected from the other nozzle while moving one of the two nozzles and bounced off by the covering member. The gist is to provide a control device for controlling the two nozzles and the driving unit so as to perform nozzle cleaning for cleaning one of the nozzles with water.

In the washing toilet seat device of the present invention, while moving one nozzle, nozzle cleaning is performed in which one nozzle is washed with washing water that is ejected from the other nozzle toward the covering member and bounced off by the covering member. As a result, by performing nozzle cleaning using two nozzles mutually, each nozzle can be cleaned over the entire length. Therefore, the entire length of the nozzle can be cleaned and the cleanliness of the nozzle can be maintained without providing a dedicated cleaning device.

In the washing toilet seat device of the present invention, the covering member can cover a range extending from above one nozzle to above the other nozzle, along the direction of the arrangement of the two nozzles. It may have a curved surface curved in a concave shape on the lower surface. By doing so, the washing water ejected from the other nozzle toward the covering member can be easily bounced off to the one nozzle side, and one nozzle can be efficiently washed.

In the washing toilet seat device of the present invention, when the two nozzles are in the retracted position, the nozzles are closed to cover the front in the advancing / retreating movement direction, and when the nozzles move to a predetermined position in front, they cover the upper part of the nozzles. The control device includes an openable / closable shutter member that is in an open state, and the control device controls the drive unit so that the other nozzle moves to the predetermined position, and the shutter member that is in the open state functions as the cover member. The nozzle cleaning may be performed. By doing so, the nozzle cleaning can be performed using the shutter member without providing a dedicated covering member, so that it is possible to suppress an increase in the number of parts due to the nozzle cleaning.

In the washing toilet seat device of the present invention, when the local washing by the one nozzle is started, the control device moves the one nozzle to the retracted position while ejecting the washing water with the other nozzle as the predetermined position. The nozzle cleaning may be performed by moving from the nozzle to the local cleaning position. By doing so, when the local cleaning is started, the entire length of the nozzle for performing the local cleaning can be cleaned, so that it is possible to suppress the user from feeling uneasy about the hygiene of the nozzle. In addition, the outer surface of the nozzle can be wetted to facilitate the removal of dirt adhering to the nozzle during local cleaning.

In the washing toilet seat device of the present invention, when the local washing by the one nozzle is completed, the control device ejects the washing water from the local washing position while using the other nozzle as the predetermined position. The nozzle cleaning may be performed by moving the nozzle to the retracted position. By doing so, when the local cleaning is completed, the entire length of the nozzle that has been locally cleaned can be cleaned. Therefore, even if dirt adheres to the nozzle during local cleaning, it is quickly removed before the dirt adheres. can do.

It is an external perspective view of the toilet bowl 1 to which the washing toilet seat device 10 is attached. It is a main block diagram of the washing toilet seat device 10 which has a nozzle unit 20. It is explanatory drawing which shows the positional relationship between a nozzle and a shutter 35. It is a flowchart which shows an example of a nozzle unit operation process. This is an example of a time chart during nozzle unit operation processing. It is explanatory drawing which shows the state of nozzle cleaning.

Next, a mode for carrying out the present invention will be described.

FIG. 1 is an external perspective view of the toilet bowl 1 to which the washing toilet seat device 10 is attached, FIG. 2 is a main configuration diagram of the washing toilet seat device 10 having a nozzle unit 20, and FIG. 3 is a positional relationship between the nozzle and the shutter 35. It is explanatory drawing which shows. In the present embodiment, the left-right direction, the front-back direction, and the up-down direction are as shown in FIGS. 1 to 3.

The toilet bowl 1 is a Western-style toilet bowl, and a washing toilet seat device 10 is installed on the upper surface of the toilet bowl 1. As shown in FIG. 1, the washing toilet seat device 10 rotates around the toilet seat device main body 11 installed behind the toilet bowl 1, the toilet seat 12 rotatably supported by the toilet seat device main body 11, and the toilet seat device main body 11. It includes a toilet lid 13 that is freely supported and an operation panel 14 that is operated by the user.

As shown in FIG. 2, the toilet seat device main body 11 includes a nozzle unit 20 having a nozzle for ejecting washing water locally on the human body, and a control device 40 for controlling the entire washing toilet seat device 10. The nozzle unit 20 includes a pulsating pump 22, a flow path switching (flow rate adjusting) valve 24, a tail cleaning nozzle 26 as two nozzles arranged side by side in the left-right direction, and a bidet cleaning nozzle 28 (see FIG. 3). , A tail cleaning nozzle drive unit 27 and a bidet cleaning nozzle drive unit 29. The pulsation pump 22 pulsates the washing water that has passed through the water supply channel, the water stop valve, and the heat exchange unit connected to the water supply pipe (water supply pipe) by driving the motor 22a. The flow path switching valve 24 switches the flow path of the washing water output from the pulsation pump 22 while adjusting the flow rate of the washing water by driving the motor 24a.

The buttocks cleaning nozzle 26 and the bidet cleaning nozzle 28 are single-stage shaft-shaped nozzle members provided with a flow path for cleaning water inside. As shown in FIG. 2, the buttocks cleaning nozzle 26 has two types of nozzle holes 26b and 26c formed on the nozzle hole forming surface 26a at the tip thereof. The nozzle hole 26b is used for normal buttocks cleaning, and the nozzle hole 26c is used for mild cleaning that gives a mild cleaning feeling by ejecting cleaning water having a weaker force than the nozzle hole 26b. As shown in FIG. 3, the bidet cleaning nozzle 28 has one type of nozzle hole 28a formed on the nozzle hole forming surface 28a at the tip end portion.

The buttocks cleaning nozzle drive unit 27 moves the buttocks cleaning nozzle 26 forward and backward by driving the motor 27a. Although not shown, the buttock cleaning nozzle drive unit 27 is a rack (flexible) that meshes with the pinion gear that rotates by driving the motor 27a and has a tip connected to the buttock cleaning nozzle 26 and can move with the rotation of the pinion gear. Rack) etc. are provided. The bidet cleaning nozzle drive unit 29 moves the bidet cleaning nozzle 28 forward and backward by driving the motor 29a, and has the same configuration as the buttocks cleaning nozzle drive unit 27. The positions of the tail cleaning nozzle 26 and the bidet cleaning nozzle 28 can be detected from the rotation amount of each of the motors 27a and 29a of the tail cleaning nozzle drive unit 27 and the bidet cleaning nozzle drive unit 29 and a position sensor (not shown).

In addition, the nozzle unit 20 includes a nozzle cover 30 that accommodates the tail cleaning nozzle 26 and the bidet cleaning nozzle 28 and covers the entire nozzle, and a movable shutter 35 that covers the front of the nozzle cover 30. The shutter 35 is a flat plate-shaped member extending to the left and right, and is configured to rotate around a rotation axis (not shown) provided on the upper side. The shutter 35 covers the front of the nozzle cover 30, that is, the tip surface of the buttocks cleaning nozzle 26 and the bidet cleaning nozzle 28 in a closed state (not shown). As a result, it is possible to suppress the dirt on the buttocks cleaning nozzle 26, the bidet cleaning nozzle 28, and the peripheral portion thereof, or to hide both of them to maintain the aesthetic appearance. Further, when the bidet cleaning nozzle 26 advances by driving the tail cleaning nozzle drive unit 27 or the bidet cleaning nozzle 28 advances by driving the bidet cleaning nozzle drive unit 29, the advanced nozzle (the tail cleaning nozzle 26 in FIG. 2) The back surface is pushed and rotates around the rotation axis to open. The shutter 35 is urged in the closing direction by a spring (not shown), and when the buttocks cleaning nozzle 26 and the bidet cleaning nozzle 28 are housed in the nozzle cover 30, the shutter 35 is closed by the urging force of the spring.

Further, FIG. 3 shows a state in which the shutter 35 covers the upper part of the buttocks cleaning nozzle 26 and the upper part of the bidet cleaning nozzle 28 in the open state. The shutter 35 has a curved surface 36 curved in a concave shape along the left-right direction, that is, the arrangement direction of the nozzles, on the lower surface (back surface) in the open state. Further, in the tail cleaning nozzle 26 and the bidet cleaning nozzle 28, the nozzle hole forming surfaces 26a and 26b in which the nozzle holes are formed face each other so that the cleaning water is ejected from the respective nozzle holes toward the local part of the human body. It is attached to the nozzle unit 20 in a state of being slightly tilted around the axis (inward direction).

Although not shown, the control device 40 is configured as a microcomputer centered on a CPU, and includes a ROM, a RAM, an input / output port, and the like in addition to the CPU. As shown in FIG. 2, an operation signal from the operation panel 14, a detection signal from the seating sensor 15, and the like are input to the control device 40 via the input port. Further, from the control device 40, a drive signal of the pulsation pump 22 to the motor 22a, a drive signal of the flow path switching valve 24 to the motor 24a (switching signal), a drive signal of the tail cleaning nozzle drive unit 27 to the motor 27a, A drive signal or the like to the motor 29a of the bidet cleaning nozzle drive unit 29 is output via the output port. The drive signal of the flow path switching valve 24 to the motor 24a is connected to the tail position connected to the supply flow path of the tail cleaning nozzle 26 to the nozzle hole 26b and the supply flow path of the tail cleaning nozzle 26 to the nozzle hole 26c. To switch the flow path switching valve 24 to either a mild position, a bidet position connected to the supply flow path of the bidet cleaning nozzle 28 to the nozzle hole 28b, or a home position not connected to any nozzle hole. It is a thing. In addition, on the operation panel 14, a butt washing switch for instructing normal butt washing, a mild washing switch for instructing mild washing, which is milder than usual, a bidet washing switch for instructing bidet washing, and cleaning strength. There is a cleaning strength adjustment switch for adjusting the cleaning, and a stop switch for instructing the stop of cleaning.

Next, the operation of the nozzle unit 20 of the washing toilet seat device 10 thus configured will be described. FIG. 4 is a flowchart showing an example of the nozzle unit operation process. The control device 40 executes this process when the seating sensor 15 determines that the user is seated on the toilet seat 12. Although not shown, the control device 40 ends this process when the seating sensor 15 no longer detects the user's seating. Further, FIG. 5 is an example of a time chart at the time of nozzle unit operation processing, and will be described together with the flowchart of FIG.

In the nozzle unit operation process of FIG. 4, the control device 40 first waits for an instruction to start local cleaning (S100). The determination of S100 is that the user is seated on the toilet seat 12 by the detection signal from the seating sensor 15, and the operation signal from the operation panel 14 is used to determine the tail cleaning switch, the mild cleaning switch, and the bidet cleaning switch. It is done based on whether any of the above has been operated. When the control device 40 determines that the start of local cleaning is instructed by S100, the control device 40 determines that one of the two nozzles used for the instructed local cleaning (referred to as a nozzle used) is different from the other nozzle (separate). The drive unit (called the nozzle) is controlled to move from the accommodation position to the nozzle cleaning position (S110), and the flow path switching valve 24 is switched from the home position to the position connected to the supply flow path to the nozzle hole of another nozzle (S120). ), Waiting for the nozzle cleaning preparation to be completed (S130). The nozzle cleaning preparation of S130 is completed when the position of the flow path switching bubble 24 is switched and another nozzle reaches the nozzle cleaning position.

Here, the nozzle cleaning position is a position between the accommodation position and the local cleaning position, and is a position where the nozzle hole of another nozzle is covered by the shutter 35 while the other nozzle pushes up the shutter 35 to maintain the open state. .. Further, FIG. 5 illustrates a case where the buttocks washing is instructed at time T0. When the butt washing switch is operated as in this example, or when the mild washing switch is operated, the butt washing nozzle 26 becomes the used nozzle and the bidet washing nozzle 28 becomes a separate nozzle. Therefore, the bidet washing nozzle in S110. 28 moves. On the other hand, when the bidet cleaning switch is operated, the bidet cleaning nozzle 28 becomes the used nozzle and the tail cleaning nozzle 26 becomes another nozzle, so that the tail cleaning nozzle 26 moves in S110. If the separate nozzle is a tail nozzle, the flow path switching valve 24 may be switched to a position connected to the supply flow path to the nozzle hole 26b for cleaning the bottom, or the supply flow path to the nozzle hole 26c for mild cleaning. You may switch to a position that leads to.

When the control device 40 determines in S130 that the nozzle cleaning preparation is completed, the pulsating pump 22 starts operating to inject cleaning water from another nozzle (S140), and controls the driving unit of the nozzle to be used. Is moved from the accommodation position to the local cleaning position (S150) to start nozzle cleaning for cleaning the outer surface of the nozzle to be used. In FIG. 5, since the separate nozzle is the bidet cleaning nozzle 28, the cleaning water is ejected from the bidet cleaning nozzle 28 at time T1 and the tail cleaning nozzle 26 starts to move to clean the nozzle of the tail cleaning nozzle 26. Is done. FIG. 6 is an explanatory diagram showing a state of nozzle cleaning. Since the bidet cleaning nozzle 28, which is a separate nozzle, injects cleaning water from the nozzle hole 28a while being covered with the shutter 35 at the nozzle cleaning position, the cleaning water bounced off the lower surface of the shutter 35 is used as a nozzle. It can be hung on the outer surface of the cleaning nozzle 26 for cleaning (see the arrow in the figure). Further, since the nozzle used is moving to the local cleaning position, the outer surface of the nozzle used can be cleaned over the entire length. Further, since the shutter 35 has a curved surface 36 on the lower surface, it is possible to easily bounce the washing water sprayed from another nozzle toward the adjacent nozzle to be used along the curved surface 36, so that the nozzle to be used can be efficiently used. Can be washed.

Subsequently, the control device 40 waits for the nozzle to be used to reach the local cleaning position (S160). When the control device 40 determines that the used nozzle has reached the local cleaning position (time T2), the control device 40 switches the flow path switching valve 24 to a position connected to the supply flow path of the used nozzle to the nozzle hole and starts local cleaning (time T2). S170). In the example of FIG. 5, the flow path switching valve 24 is switched to the position for cleaning the buttocks at time T2, and local cleaning (buttock cleaning) is started from the time T3 when the switching is completed. Then, the control device 40 waits for an instruction to stop the local cleaning (S180). The determination of S180 is made based on whether or not the stop switch of the operation panel 14 is operated. When the control device 40 determines that the stop of local cleaning is instructed (time T4), the control device 40 switches the flow path switching valve 24 to a position connected to the supply flow path to the nozzle hole of another nozzle (bidet cleaning nozzle 28) again (time T4). S190), by moving the nozzle used this time from the local cleaning position to the accommodation position (S200), the nozzle cleaning of the nozzle used is started again (time T5). In this way, even when the local cleaning is completed and the nozzle used is accommodated, the outer surface of the nozzle used is cleaned over the entire length.

Then, the control device 40 waits for the used nozzle to reach the accommodation position in the nozzle cover 30 (S210), and when it is determined that the used nozzle has reached the accommodation position (time T6), the operation of the pulsation pump 22 is stopped. By setting the flow path switching valve 24 to the home position, the injection of cleaning water from another nozzle is stopped and nozzle cleaning is completed (S220), and the other nozzle is moved from the nozzle cleaning position to the accommodation position (S230). , Time T8), the nozzle unit operation process is completed.

The washing toilet seat device 10 described above performs nozzle cleaning in which the used nozzle is washed with the washing water that is ejected from another nozzle toward the shutter 35 while moving the nozzle used for local washing. Therefore, by performing nozzle cleaning using two nozzles mutually, it is possible to clean the nozzles over the entire length without providing a dedicated cleaning device.

Further, since the shutter 35 has a curved surface 35a on the lower surface which is curved in a concave shape along the direction of arrangement of the tail cleaning nozzle 26 and the bidet cleaning nozzle 28, the cleaning water ejected from another nozzle is likely to bounce off to the used nozzle side. The nozzles used can be cleaned efficiently.

Further, when the local washing is started, the washing toilet seat device 10 moves the used nozzle from the accommodating position (retracted position) to the local washing position while ejecting the washing water with another nozzle as the nozzle washing position (predetermined position). By doing so, the nozzle is cleaned. Therefore, since the entire length of the nozzle used can be cleaned when the local cleaning is started, it is possible to suppress the user from feeling uneasy about the hygiene of the nozzle. Further, by wetting the outer surface of the nozzle used, it is possible to easily remove the dirt adhering to the nozzle used during local cleaning.

Further, the washing toilet seat device 10 moves the used nozzle from the local washing position to the accommodating position (retracted position) while ejecting washing water with another nozzle as the nozzle washing position (predetermined position) when the local washing is completed. Then, clean the nozzle. Therefore, even if dirt adheres to the nozzle during local cleaning, it can be quickly removed before the dirt adheres.

In the above-described embodiment, the nozzles used are cleaned by ejecting cleaning water from another nozzle onto the shutter 35, but the present invention is not limited to this, and in addition to the shutter 35, the tail cleaning nozzle 26 and the bidet cleaning nozzle 28 are used. A covering member may be provided to cover the nozzle, and the nozzle to be used may be cleaned by spraying cleaning water onto the covering member. For example, the nozzle may be cleaned by using the nozzle cover 30 or a member attached to the nozzle cover 30. Further, the covering member is not limited to the one that covers from the upper part of the tail cleaning nozzle 26 to the upper part of the bidet cleaning nozzle 28, and the cleaning water ejected from the tail cleaning nozzle 26 and bounced off can be applied to the bidet cleaning nozzle 28. The cleaning water ejected from the bidet cleaning nozzle 28 and bounced off may cover at least a part above the two nozzles so that the cleaning nozzle 26 can be hung on the cleaning nozzle 26.

In the embodiment, the shutter 35 has a curved surface 36 on the lower surface, but the present invention is not limited to this, and the shutter 35 may not have the curved surface 36 and the lower surface may be a flat surface. Even in this way, since the two nozzles are attached in a state of being tilted about the axis in the direction facing each other, the washing water ejected from one nozzle and bounced off by the shutter 35 can be applied to the other nozzle. It is possible.

In the embodiment, in the nozzle unit operation process, the nozzle cleaning is performed when the local cleaning is started and when the local cleaning is completed, but the present invention is not limited to this, and the local cleaning is started and the local cleaning is completed. Nozzle cleaning may be performed on either side.

In the embodiment, the nozzle cleaning is performed when the local cleaning is performed in the nozzle unit operation processing performed by the control device 40, but the present invention is not limited to this. That is, the nozzle cleaning may be performed in addition to the case where the local cleaning is performed. In this case, for example, a switch for cleaning the nozzle may be provided on the operation panel 14, and the nozzle cleaning process may be performed based on an operation instruction from the user. In this way, the user can perform the cleaning work of both nozzles by alternately using the buttocks cleaning nozzle 26 and the bidet cleaning nozzle 28.

The correspondence between the main elements of the present embodiment and the main elements of the invention described in the column of means for solving the problem will be described. In the present embodiment, the tail cleaning nozzle 26 and the bidet cleaning nozzle 28 correspond to "two nozzles", the tail cleaning nozzle drive unit 27 and the bidet cleaning nozzle drive unit 29 correspond to the "drive unit", and the shutter 35 The control device 40 that corresponds to the "cover member" and the "shutter member" and performs the nozzle unit operation processing of FIG. 4 corresponds to the "control device". Further, the curved surface 36 corresponds to the "curved surface".

The correspondence between the main elements of the present embodiment and the main elements of the invention described in the column of means for solving the problem is the invention described in the column of the means for solving the problem in the present embodiment. Since it is an example for specifically explaining the embodiment for carrying out the above, the elements of the invention described in the column of means for solving the problem are not limited. That is, the interpretation of the invention described in the column of means for solving the problem should be performed based on the description in the column, and this embodiment is the invention described in the column of means for solving the problem. It is just a concrete example of.

Although the embodiments for carrying out the present invention have been described above, the present invention is not limited to these embodiments, and can be carried out in various forms without departing from the gist of the present invention. Of course.

The present invention can be used in the manufacturing industry of a washing toilet seat device and the like.

1 toilet bowl, 10 cleaning toilet seat device, 11 toilet seat device body, 12 toilet seat, 13 toilet lid, 14 operation panel, 15 seating sensor, 20 nozzle unit, 22 pulsation pump, 22a, 24a, 27a, 29a motor, 24 flow path switching valve , 26 Nozzle cleaning nozzle, 26a, 28a Nozzle hole forming surface, 26b, 26c Nozzle hole, 27 Bidet cleaning nozzle drive unit, 28 Bidet cleaning nozzle, 29 Bidet cleaning nozzle drive unit, 30 Nozzle cover, 35 shutter, 36 Curved surface, 40 Control device.

Claims (5)

It is a washing toilet seat device in which two nozzles that eject washing water to locally wash the human body are provided side by side.
A drive unit that moves the nozzle forward and backward, and
A covering member capable of covering at least a part of the area above the two nozzles,
While moving one of the two nozzles, the two nozzles are washed so that the one nozzle is washed with the washing water that is ejected from the other nozzle and bounced off by the covering member. And the control device that controls the drive unit,
A washing toilet seat device equipped with. The washing toilet seat device according to claim 1.
The covering member can cover a range extending from above one nozzle to above the other nozzle, and has a curved surface curved in a concave shape along the direction of arrangement of the two nozzles on the lower surface. Cleaning toilet seat device to have. The washing toilet seat device according to claim 1 or 2.
An openable shutter that covers the front of the nozzles in the advancing / retreating movement direction when the two nozzles are in the retracted position, and opens to cover the upper part of the nozzles when the nozzles move to a predetermined position in front of the nozzles. Equipped with members
The control device is a washing toilet seat device that controls the driving unit so that the other nozzle moves to the predetermined position, causes the shutter member in an open state to function as the covering member, and performs nozzle cleaning. The washing toilet seat device according to claim 3.
When the local cleaning by the one nozzle is started, the control device moves the one nozzle from the retracted position to the local cleaning position while ejecting the cleaning water with the other nozzle as the predetermined position. A washing toilet seat device that cleans the nozzles. The washing toilet seat device according to claim 3 or 4.
When the local cleaning by the one nozzle is completed, the control device moves the one nozzle from the local cleaning position to the retracted position while ejecting the cleaning water with the other nozzle as the predetermined position. , A washing toilet seat device that cleans the nozzle.

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