JP2002294812A - Seating detector for sanitary washing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To detect a user's seating on a toilet seat even in the state of a user's clothes being in proximity to or in contact with the front wall surface of a casing. SOLUTION: A seating sensor 10 comprising a light emitting part 11 and a light receiving part 12 is arranged inside a easing 6 for enclosing a functional part of a sanitary washing device, in the state of being opposed to an aperture hole 6a opened to the front wall surface of the easing 6 and providing a space through which a filter 25 fitted to the aperture hole 6a cannot be detected but a user's clothes P1 or the like placed in proximity to or in contact with the front wall surface can be detected. The user's seating on the toilet seat can be detected by detecting the clothes P1 or the like by the seating sensor 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seating detection device for detecting whether a user is sitting on a toilet seat or not in a sanitary washing device.

[0002]

2. Description of the Related Art Conventionally, a sanitary washing apparatus in which washing water heated to an appropriate temperature is jetted to wash a local part of a human body in a sanitary manner is used when a user is not sitting on a toilet seat (for example, cleaning). (E.g., time), the human body detecting means such as a seating detecting device for detecting whether the user is seated or not seated on the toilet seat is provided in order to prevent erroneous ejection of the washing water by operating the operating means. I have.

FIG. 7 shows an example of a sanitary washing device provided with a seating detection device. The sanitary washing device 1 includes a pressure regulating valve shown in FIG.
A valve unit 2 having an on-off valve, a flow control valve and the like integrated, a heating device 3 having a heater or the like for heating the cleaning water for local cleaning to an appropriate temperature, and the cleaning water heated to an appropriate temperature to a human body local part. A cleaning nozzle 4 to be sprayed toward the control unit, a control device 5 for controlling the functional units, a casing 6 for accommodating the functional units and the control device 5 (see FIG. 7), and attached to the casing 6 so as to be openable and closable. A toilet seat 7 and a toilet lid 8 (see FIG. 7).

A seating sensor (seating detection device) 10 for detecting whether the user sits on the toilet seat 7 or not is installed substantially at the center of the front wall of the casing 6 located on the toilet seat 7 side. I have. The seating sensor 10 is, for example, a distance measuring sensor that detects an object to be detected (user) by a triangulation method. As shown in FIG.
ED) Light-emitting unit 1 including 11a and light-emitting side lens 11b
1 and a light receiving element (PSD: Position Sens)
active device) 12a and light-receiving-side lens 1
The light-receiving unit 12 includes a light-receiving unit 12 and a housing 13 that houses the light-emitting unit 11 and the light-receiving unit 12.

[0005] As shown in FIG. 10, the seating sensor 10 is provided inside the casing 6.
A position facing the window hole 6a opened in the front wall surface of
In addition, the filter 15 is disposed at a position close to the flat light-transmitting filter 15 made of acrylic resin or the like fitted into the window hole 6a (a position at which the filter 15 itself cannot be detected by the seating sensor 10).

Next, a case where local cleaning is performed by the sanitary cleaning device 1 provided with the seating sensor 10 will be described. First, when the user is not within the detection range of the seating sensor 10 (that is, when the user is not seated on the toilet seat 7), the light emitting unit 11 of the seating sensor 10 moves in the direction of the toilet seat 7 (FIG. 1).
Infrared light projected toward the upper side (0 upward)
, A predetermined signal is output from the light receiving element 12a of the light receiving section 12 to the control device 5, and the absence of the user is detected. When the user is not seated, the control device 5
Since the respective functional units of the sanitary washing device 1 are inoperable (however, the heater of the heating device 3 is energized as necessary), even if operating means (not shown) such as a remote controller is operated, the washing water is not discharged. It does not erupt accidentally.

Subsequently, as shown in FIG. 9, when the user sits on the toilet seat 7, the infrared light emitted from the light emitting portion 11 of the seat sensor 10 toward the toilet seat 7 (upward in FIG. 10) is generated. The light is reflected and reflected by the user P, enters the light receiving section 12 of the seating sensor 10, and is received by the light receiving element 12a (see broken line L1 in FIG. 10). As a result, a predetermined signal is output from the light receiving element 12a to the control device 5,
The seating of the user P on the toilet seat 7 is detected. As described above, when the seating of the user P is detected, the control device 5 shifts each functional unit of the sanitary washing device 1 to an operable state and prepares for local washing.

In this state, when the cleaning switch of the operating means (not shown) such as a remote controller is operated to perform the local cleaning, the opening / closing valve of the valve unit 2 is opened by a command from the control device 5, and the water supply source The cleaning water is supplied from the (water supply) to the heating device 3, and the cleaning nozzle 4 advances to a predetermined cleaning position. The cleaning water supplied to the heating device 3 is heated at a predetermined temperature (appropriate temperature) in the heating device 3.
After being heated to the cleaning nozzle 4, the cleaning nozzle 4 is fed to the cleaning nozzle 4 and sprayed from the cleaning nozzle 4 toward a human body part.
The local area is sanitarily cleaned.

When the user separates from the toilet seat 7 after the local washing or the toilet use, the light receiving section 12 of the seating sensor 10
Since the infrared light emitted from the light emitting unit 11 does not enter the control unit 5, a predetermined signal is output from the light receiving element 12 a to the control device 5, and the separation (non-seating) of the user P from the toilet seat 7 is detected. Is done. As described above, when the user P is detected to be unattended, the control device 5 shifts the functional units of the sanitary washing device 1 to an inoperable state again, and the washing water from the washing nozzle 4 when the user P is not seated. To prevent accidental ejection.

[0010]

However, in the sanitary washing device 1 having the above-described structure, the seating sensor 10 has the window hole 6a opened in the front wall surface of the casing 6, as shown in FIG.
Because the filter 15 is placed in close proximity to the filter 15 fitted on the surface of the filter 15, if the user's clothing P1 comes close to or contacts the surface of the filter 15 (the front wall surface of the casing 6), the light emitting section The infrared light emitted from the light source 11 and reflected by the clothes P1 is shielded by the clothes P1 and reflected by the light receiving unit 12 but not received by the light receiving element 12a as shown by a broken line L2 in FIG. Since the clothes P1 cannot be detected, there is a possibility that the user P cannot use the sanitary washing device 1 even though the user P is sitting on the toilet seat 7.

In order to solve the above problem, for example, a first light receiving element for receiving infrared light reflected at a position (far distance) away from the casing, and a vicinity of the casing (short distance)
It is conceivable to provide a second light receiving element for receiving the infrared light reflected by the light source so that the infrared light reflected both at a long distance and a short distance can be individually received.
In this case, since a plurality of light receiving elements must be used, there is a problem that the manufacturing cost of the sanitary washing device is increased.

In order to solve the above-mentioned various problems, the present invention detects the clothing and the like even when the clothing and the like of the user are close to and in contact with the front wall surface of the casing, and thereby, the toilet seat of the user is detected. It is an object of the present invention to provide a seating detection device of a sanitary washing device capable of detecting the seating of a person.

[0013]

According to the present invention, there is provided a seating sensor comprising a light emitting section for emitting infrared rays and a light receiving section for receiving infrared rays which are shielded and reflected by a user. In the sanitary washing device, the seating sensor is provided in a casing that houses the functional unit of the sanitary washing device.
A filter that fits in the window hole between the casing and the front wall surface at a position corresponding to the window hole opened in the front wall surface of the casing, the filter being undetectable and approaching / contacting the front wall surface. It is characterized in that it is arranged in a state where an interval capable of detecting clothes or the like of a person is provided.

According to a second aspect of the present invention, there is provided a sanitary washing device comprising a seating sensor comprising a light emitting unit for projecting infrared rays and a light receiving unit for receiving infrared rays reflected and shielded by a user. In a casing accommodating the functional unit of the sanitary washing device, a filter fitted to the window hole between the casing and the front wall surface is detected at a position corresponding to the window hole opened in the front wall surface of the casing. Impossible, and while providing an interval capable of detecting the clothes and the like of the user approaching and contacting the front wall surface, and that the infrared projection light emitted from the light emitting unit is disposed obliquely forward. Features.

According to a third aspect of the present invention, there is provided a sanitary washing device comprising a seating sensor comprising a light emitting section for projecting infrared rays and a light receiving section for receiving infrared rays which are shielded and reflected by a user. In a casing accommodating the functional part of the sanitary washing device, a window hole opened in the front wall surface of the casing is disposed close to and facing the window hole, and on the surface side of the filter fitted in the window hole. Is formed by bulging a projection, and the projection provides an interval between the seating sensor and the clothing of a user who comes close to or in contact with the front wall surface of the casing so that the clothing can be detected by the seating sensor. It is characterized by doing so.

According to a fourth aspect of the present invention, there is provided a sanitary washing device comprising a seating sensor comprising a light emitting section for emitting infrared rays and a light receiving section for receiving infrared rays which are shielded and reflected by a user. In a casing accommodating the functional unit of the sanitary washing device, the casing is disposed in the vicinity of, and opposed to, a window opening in the front wall surface of the casing, and in the vicinity of a filter fitted in the window. A protrusion is formed on the front wall so as to bulge, and the protrusion can be detected by the seating sensor between the seating sensor and the clothes of the user approaching / contacting the front wall of the casing. It is characterized in that an interval is provided.

[0017] The invention according to claim 5 is the invention according to claim 1 or 2.
In the seating detection device for a sanitary washing device according to the aspect, the filter has a recessed portion formed by recessing a center portion of the filter with a predetermined dimension inward from a front wall surface side of the casing, and forming the recessed portion. The part and the seating sensor are arranged close to each other.

The invention according to claim 6 is the first or second invention.
In the seating detection device for a sanitary washing device according to the present invention, a recessed portion is formed on the front wall surface of the casing by indenting a portion corresponding to the seating sensor with a predetermined dimension toward an inward direction. A filter fitted to a window hole opened in the installation portion and a seating sensor are arranged close to each other.

The invention according to claim 7 provides the invention according to claims 1 to 6
In the seating detection device for a sanitary washing device described above, a housing for accommodating a light emitting unit and a light receiving unit constituting a seating sensor is integrally formed in the filter.

[0020] The invention according to claim 8 is the invention according to claims 1 to 7.
In the seating detection device for a sanitary washing device according to the present invention, the seating sensor is arranged in parallel with and close to the filter so that the projection light of the infrared light emitted from the light emitting unit is transmitted in a direction perpendicular to the filter. It is characterized by having done.

According to the present invention, a filter that is fitted between a seating sensor and a front wall surface of a casing in a window hole opened in the front wall surface of the casing cannot be detected, and comes into close contact with the front wall surface. Since the user's clothes and the like are arranged with a detectable interval, the seating sensor can detect the user sitting on the toilet seat, and, of course, can be used on the front wall surface of the casing. Even when clothes of the user are close to or in contact with each other, it is possible to reliably detect the user's seating on the toilet seat by detecting the clothes or the like.

[0022]

FIG. 1 is a block diagram showing an embodiment of the present invention.
This will be described with reference to FIG. In FIGS. 1 and 2, the same members as those of the prior art will be described using the same reference numerals. In the embodiment of the present invention, the sanitary washing device 1
The configuration of the seating sensor (seating detection device) 10 is the same as that of the related art, and a description thereof will be omitted. The difference between the present invention and the prior art is that even when the user's clothing or the like is close to or in contact with the front wall surface of the casing, it is possible to detect the user's seating on the toilet seat by detecting the clothing or the like. It is in the point which did.

FIG. 1 shows a first embodiment of the present invention. As shown in FIG. 1, a seating sensor 10 is provided in a casing 6 so as to face a window hole 6 a opened in a front wall surface of the casing 6, and to detect an object to be detected in a position close to / contact with the front wall surface of the casing 6. (Person's clothes, etc.) When P1 exists, the clothes P1 are detected, and when clothes P1, etc. do not exist, the detection object (user) P at a position away from the front wall surface of the casing 6 is detected. The casing 6 is disposed with a predetermined space between the casing 6 and the front wall face.

As shown in FIG. 1, the center of the filter 25, which is fitted in the window hole 6a opened in the front wall surface of the casing 6, is placed in the casing 6 as described above (paragraph number [ 0023]) The seated sensor 10 arranged
A recessed portion 25a is formed in a predetermined size from the front wall surface side of the casing 6 toward the inside (downward in FIG. 1) so as to be parallel to the front surface of the housing 13 (i.e., seated). The projection light L of the infrared light emitted from the light emitting unit 11 of the sensor 10 is transmitted in a direction perpendicular to the recess 25a), and the seating sensor 10 is brought close to the recess 25a of the filter 25. , Arranged in parallel.

As described above, the seating sensor 10 is arranged at a predetermined distance from the front wall surface of the casing 6, so that not only the user P seated on the toilet seat 7 but also the user P , It is also possible to reliably detect the user P sitting on the toilet seat 7 by detecting the clothing P1. Further, since the seating sensor 10 is disposed in parallel with and near the recess 25a formed by recessing the center of the filter 25, it is possible to favorably suppress the reflection of infrared rays on the inner surface of the filter 25. Becomes

Next, a case where local cleaning is performed by the sanitary cleaning device 1 provided with the seating sensor 10 will be described. First, when the user is not within the detection range of the seating sensor 10 (that is, when the user is not seated on the toilet seat 7), the light emitting unit 11 of the seating sensor 10 moves in the direction of the toilet seat 7 (FIG. 1).
The infrared light projected toward the upper side does not enter the light receiving unit 12, so that a predetermined signal is output from the light receiving element 12a of the light receiving unit 12 to the control device 5 to detect that the user is not seated. Have been. When the user is not seated, the control device 5 disables the respective function units of the sanitary washing device 1 (however, the heater of the heating device 3 is energized as necessary), so that an unillustrated operation of a remote controller or the like is performed. Even if the means is operated, the washing water is not spouted accidentally.

Subsequently, as shown in FIG. 9, when the user sits on the toilet seat 7, the infrared light emitted from the light emitting section 11 of the seat sensor 10 toward the toilet seat 7 (upward in FIG. 1) The light is reflected and reflected by the user P, and the seating sensor 1
The light enters the light receiving unit 12 of No. 0 and is received by the light receiving element 12a (see the broken line L1 in FIG. 1). Thereby, the light receiving element 1
2a outputs a predetermined signal to the control device 5, and the user P
Of the toilet seat 7 is detected. As described above, when the seating of the user P is detected, the control device 5 shifts each functional unit of the sanitary washing device 1 to an operable state and prepares for local washing.

At this time, the seating sensor 10 detects not only the object (user) P located away from the front wall surface of the casing 6 but also the object (user's clothes, etc.) approaching / contacting the front wall surface. Since it is arranged at a predetermined distance from the front wall of the casing 6 so that P1 can also be detected, as shown in FIG. Even if the clothing P1 is close to or in contact with the clothing, the infrared light emitted from the light emitting section 11 of the seating sensor 10 is shielded and reflected by the clothing P1, and is received by the light receiving element 12a of the light receiving section 12. Therefore (see the broken line L2 in FIG. 1), the clothes P1 can be detected well, and as a result, the user P
Even if the device itself cannot be detected, each functional unit of the sanitary washing device 1 can be shifted to an operable state to prepare for local washing.

As described above, if the user operates the cleaning switch of the operating means (not shown) such as a remote controller to perform local cleaning in a state where the user is seated on the toilet seat 7, the control device 5 The opening / closing valve of the valve unit 2 is opened in response to the command from, the cleaning water is supplied to the heating device 3 from the water supply source (tap), and the cleaning nozzle 4 advances to a predetermined cleaning position. The cleaning water supplied to the heating device 3 is heated to a predetermined temperature (appropriate temperature) in the heating device 3 and then fed to the cleaning nozzle 4 to be jetted from the cleaning nozzle 4 toward the human body part, The local area is sanitarily cleaned.

When the user separates from the toilet seat 7 after the local washing or the toilet use, the light receiving section 12 of the seating sensor 10
Since the infrared light emitted from the light emitting unit 11 does not enter the control unit 5, a predetermined signal is output from the light receiving element 12 a to the control device 5, and the separation of the user P from the toilet seat 7 is detected.
As described above, when the user P is detected to be unattended, the control device 5 shifts the functional units of the sanitary washing device 1 to an inoperable state again, and the washing water from the washing nozzle 4 when the user P is not seated. To prevent accidental ejection.

As described above, the seating sensor 10 of the present invention
Is disposed with a predetermined interval provided between the front wall of the casing 6 and the front wall of the casing 6, so that the user P itself sitting on the toilet seat 7 can be detected. Even when the clothing P1 of the user is close to or in contact with the clothing, the clothing P1 can be detected. As a result, even if the user P itself cannot be detected due to the presence of the clothing P1. Thus, it is possible to reliably detect the user P sitting on the toilet seat 7.

The filter 25 to be fitted in the window hole 6a opened in the front wall of the casing 6 has a recessed portion 25a formed by indenting a center portion of the filter 25 in a predetermined size toward the inside. Since the concave portion 25a and the seating sensor 10 are arranged close to each other, even if infrared rays are reflected on the inner surface of the filter 25, they do not enter the light receiving portion 12, so that erroneous detection can be prevented well. In addition, since a gap of a predetermined size is formed between the front wall surface of the casing 6 and the surface of the concave portion 25a of the filter 25, dust, dirty water, and the like attached to the concave portion 25a are deposited on the front wall surface of the casing 6. It is possible to reliably prevent the seating sensor 10 from erroneously detecting as the clothing P1 of the user who has approached or contacted.

In the first embodiment, infrared rays are emitted from the light emitting section 11 of the seating sensor 10 toward the front (in the direction perpendicular to the front wall surface of the casing 6, upward in FIG. 1). Although an example has been described, for example, in a case where the seating sensor 10 is arranged at a corner of the casing 6 instead of being arranged substantially at the center of the front wall surface of the casing 6, the user P on the toilet seat 7 In order to reliably detect the seating, as shown in FIG.
The infrared rays from 1 may be projected obliquely forward.

In this case, as shown in FIG. 2, the seating sensor 10 is inclined at a predetermined angle with respect to the front wall surface at a position corresponding to the window hole 6a opened in the front wall surface of the casing 6, and When the user's clothing P1 exists at a position close to or in contact with the front wall surface of the casing 6, the clothing P1 is located at a position away from the front wall surface of the casing 6 when the clothing P1 does not exist (toilet seat). In order to be able to detect the user P in (7) above, the user P is disposed in the casing 6 with a predetermined space provided between the casing 6 and the front wall surface.

As shown in FIG. 2, the center of the filter 25, which is fitted in the window hole 6a opened in the front wall of the casing 6, has a central part disposed in the casing 6 of the seating sensor 10. 13 is formed inward from the front wall surface side of the casing 6 in a predetermined size so as to be parallel to the front surface of the casing 13 to form a recessed portion 25a (that is, light is emitted from the light emitting portion 11 of the seating sensor 10). Infrared projection light L
Is transmitted in a direction perpendicular to the concave portion 25a), and the seating sensor 10 is arranged close to and parallel to the concave portion 25a of the filter 25.

As a result, close to the front wall surface of the casing 6
When the user's clothes P1 does not exist at the contact position, the infrared light emitted from the light emitting unit 11 is indicated by a broken line L in FIG.
As shown by 1, the light is shielded and reflected by the user P at a position (on the toilet seat 7) away from the front wall surface of the casing 6,
In the case where P1 is received by the second light receiving element 12a and the user's clothes P1 exists at a position close to or in contact with the front wall surface of the casing 6, the infrared light emitted from the light emitting unit 11 is indicated by a broken line in FIG. As shown by L2, the clothes or the like P1
Since the light is reflected and received by the light receiving element 12a of the light receiving unit 12, the seating sensor 10 is positioned at a position where the infrared light from the light emitting unit 11 is projected obliquely forward, such as at a corner of the casing 6. , The seating of the user P on the toilet seat 7 can be reliably detected, and furthermore, it is possible to alleviate restrictions when designing the product.

The seat sensor 10 is connected to the filter 25.
Of the infrared light projected from the light emitting unit 11 while being brought close to the recessed portion 25a formed by recessing the center of
Are arranged so as to penetrate in a direction perpendicular to the recessed portion 25a (that is, so that the front surface of the housing 13 of the seating sensor 10 and the recessed portion 25a are parallel to each other). The reflection of the infrared light emitted from the light emitting unit 11 on the inner surface of the filter 25 can be satisfactorily suppressed, and erroneous detection or the like can be prevented.

In the first embodiment, as shown in FIGS. 1 and 2, the seating sensor 10 and the recess 25a of the filter 25 are provided.
Has been described in the case where they are arranged close to each other. For example, as shown in FIGS. 3 (a) and 3 (b),
The housing 13a of the seating sensor 10 is
Infrared projection light L from light emitting unit 11 housed in 3a
However, the filter 25 may be formed integrally with the concave portion 25a in a state where light is transmitted in a direction perpendicular to the concave portion 25a.

According to this, the distance between the filter 25 and the concave portion 25a may vary due to a dimensional error or the like when the seating sensor 10 is disposed in the casing 6, or the projection light from the light emitting portion 11 It is possible to satisfactorily prevent the occurrence of adverse effects such as that L does not pass through in the direction perpendicular to the recessed portion 25a.

Next, a second embodiment of the present invention will be described with reference to FIG. In the second embodiment, instead of forming the center of the filter 25 inward of the casing 6 to form the recess 25 as in the first embodiment (see FIGS. 1 and 2), FIG. ), The seating sensor 1
The front wall surface of the casing 6 corresponding to the disposition position 0 is recessed inward to form a recessed portion 6b, and a flat filter 15 is fitted into the window hole 6a opened in the recessed portion 6b. To wear.

Further, at a position close to the filter 15 in the casing 6, the seating sensor 10 is set so that the front surface of the housing 13 and the filter 15 are parallel (ie, the projection of infrared rays from the light emitting section 11). Light L is transmitted in a direction perpendicular to the filter 15).

As described above, in the second embodiment, the recessed portion 6b is formed by recessing the front wall surface of the casing 6, so that the seating sensor 10 and the front wall surface where the recessed portion 6b is not formed can be formed. A predetermined interval can be provided between the light-emitting portions 11 when the user's clothing P1 does not exist at a position close to or in contact with the front wall surface of the casing 6.
The infrared rays emitted from the casing 6 are separated from the front wall of the casing 6 (toilet seat 7) as shown by a broken line L1 in FIG.
The light P is shielded and reflected by the user P in the upper part, and is received by the light receiving element 12a of the light receiving unit 12, and the casing 6
If the user's clothing P1 exists at a position close to or in contact with the front wall surface of the user, the infrared light emitted from the light emitting unit 11
As shown by the broken line L2 in FIG. 4 (a), as a result of being shielded by the clothes P1 and reflected and received by the light receiving element 12a of the light receiving section 12, the seating of the user P on the toilet seat 7 is reliably detected. can do.

Also, since the filter 15 fitted in the window 6a opened in the recess 6b and the seat sensor 10 are arranged close to each other, infrared rays from the light emitting section 11 of the seat sensor 10 are transmitted through the inner surface of the filter 15. It is possible to properly prevent erroneous detection due to reflection. In addition, a gap of a predetermined size is generated between the surface of the filter 15 fitted in the window 6a opened in the recess 6b and the front wall surface of the casing 6 where the recess 6b is not formed. It is possible to reliably prevent the seating sensor 10 from erroneously detecting dust, dirty water, and the like adhering to the surface of the filter 15 as the user's clothes P1 approaching or contacting the front wall surface of the casing 6.

Incidentally, also in the second embodiment, FIG.
As shown in the figure, the filter 15 and the housing 13a of the seating sensor 10 may be integrally formed, or the infrared rays from the light emitting unit 11 of the seating sensor 10 may be projected obliquely forward. It may be.

Next, a third embodiment of the present invention will be described with reference to FIG. In the third embodiment, the first,
As in the second embodiment, the filter 25 and the center of the casing 6 are recessed inwardly of the casing 6 so that the recesses 25a,
6b (see FIGS. 1, 2 and 4) instead of forming FIG.
As shown in FIG. 5A, the front side (FIG. 5) of the filter 35 fitted in the window hole 6a opened in the front wall surface of the casing 6.
In FIG.
The protrusion 35a is bulged to a predetermined size in a state where light reception is not hindered.

Further, at a position close to the filter 35 in the casing 6, the seating sensor 10 is set so that the front surface of the housing 13 is parallel to the filter 35 (ie, the projection of infrared rays from the light emitting section 11). The light L is transmitted in a direction perpendicular to the filter 35) and arranged in parallel.

As a result, the clothing P1 of the user is prevented from coming into contact with the surface of the filter 35 by the projection 35a formed on the surface side of the filter 35, and is emitted from the light emitting section 11 of the seating sensor 10. FIG. 5 (a)
As shown by the broken line L2, the clothes or the like P which are prevented from contacting the surface of the filter 35 by the protrusions 35a.
As a result, the light is reflected and received by the light receiving element 12a of the light receiving unit 12, so that the user's sitting on the toilet seat 7 can be reliably detected.

When the user's clothing P1 is not located at a position close to or in contact with the front wall surface of the casing 6 (the surface of the filter 35), the light emitting section 11 of the seating sensor 10
As shown by a broken line L1 in FIG. 5A, the infrared light projected from the light source is shielded and reflected by the user P at a position away from the front wall surface of the casing 6, and is received by the light receiving element 12a of the light receiving unit 12. As a result, the seating of the user P on the toilet seat 7 can be reliably detected.

Further, the seat sensor 10 is connected to the filter 35.
(Front wall side of the casing 6), it is possible to prevent infrared rays from being reflected on the inner surface of the filter 35 satisfactorily, thereby preventing erroneous detection and the like. Since a large space is not required for arranging the seating sensor 10, it is possible to store each functional unit without particularly increasing the size of the casing 6.

Note that also in the third embodiment, FIG.
The housing 13a of the seating sensor 10 may be formed integrally with the filter 35 as shown by.

Next, a fourth embodiment of the present invention will be described with reference to FIG. In the fourth embodiment, the seating sensor 10 is provided on the front side of the filter 35 as in the third embodiment.
Projecting portion 35a in a state where the projection and reception of infrared rays by
Instead of swelling with a predetermined size (see FIG. 5), as shown in FIG. 6A, an outer side (see FIG. 6A) is provided near a window hole 6a opened in the front wall surface of the casing 6. Upward)
The protrusion 6c is formed to bulge in a predetermined dimension toward the surface.

A flat filter 15 is fitted in a window 6a opened in the front wall surface of the casing 6, and a seating sensor 10 is provided at a position close to the filter 15 in the casing 6, and a housing sensor 10 is provided. The filter 15 is arranged in parallel with the front surface of the filter 13 in parallel with the filter 15 (that is, the projection light L of infrared rays from the light emitting unit 11 is transmitted in a direction perpendicular to the filter 15).

As a result, the user's clothes P1 is prevented from coming into contact with the surface of the filter 15 by the protrusion 6c formed on the front wall surface of the casing 6, so that the seating sensor 10
As shown by a broken line L2 in FIG. 6 (a), the infrared rays emitted from the light emitting section 11 are shielded by the clothes P1 and the like which are prevented from contacting the surface of the filter 15 by the projections 6c and reflected. Then, as a result of the light being received by the light receiving element 12a of the light receiving section 12, the user's sitting on the toilet seat 7 can be reliably detected.

If the user's clothing P1 is not located at a position close to or in contact with the front wall surface of the casing 6 (the surface of the filter 15), the light emitting section 11 of the seating sensor 10
As shown by a broken line L1 in FIG. 6 (a), the infrared light projected from the user is shielded and reflected by the user P at a position away from the front wall surface of the casing 6, and is received by the light receiving element 12a of the light receiving unit 12. As a result, the seating of the user P on the toilet seat 7 can be reliably detected.

Further, the seat sensor 10 is connected to the filter 15.
(The front wall side of the casing 6), the infrared rays can be effectively prevented from being reflected on the inner surface of the filter 15 to prevent erroneous detection and the like. Since a large space is not required for arranging the seating sensor 10, it is possible to store each functional unit without particularly increasing the size of the casing 6.

Incidentally, also in the fourth embodiment, FIG.
The housing 13a of the seating sensor 10 may be formed integrally with the filter 15 as shown by.

In the first and second embodiments of the present invention, the filter 25 or the recessed portions 25a, 6a on the front wall surface of the casing 6 corresponding to the position where the seating sensor 10 is disposed.
b, and the example in which the recessed portion 25a and the seating sensor 10 or the filter 15 and the seating sensor 10 fitted in the window 6a opened in the recessed portion 6b are arranged close to each other. However, the present invention is not limited to this. For example, in the case where the seating sensor 10 is arranged with a predetermined space provided between the seating sensor 10 and the front wall surface of the casing 6, it is possible to detect the user's clothes P1 approaching or contacting the space with the front wall surface of the casing 6. And filters 25 and 15
If the distance is set to an undetectable distance, the filter 25 and the front wall of the casing 6 are specially recessed so that the seating sensor 10
Need not be close to

In the third and fourth embodiments of the present invention, examples have been described in which the protrusion is formed on the front side of the filter or on the front wall surface of the casing. However, the present invention is not limited to this. Alternatively, the entire wall of the filter or the front wall surface of the casing corresponding to the position of the seating sensor may be outwardly bulged with a predetermined dimension to provide a bulged portion.

Further, the present invention has been described with respect to an example in which the present invention is applied to a sanitary washing apparatus having no sleeve on the side of the casing. However, the present invention is not limited to this. In the device, it is needless to say that the present invention can be applied to a case where a seating sensor is arranged on the sleeve.

[0060]

As described above, the present invention provides a filter fitted to a window hole opened in a front wall surface of a casing,
Alternatively, a recessed portion is formed by recessing a front wall surface of the casing corresponding to the position where the seating sensor is disposed with a predetermined dimension inward of the casing, or a front side of the filter, or a front wall surface of the casing. A predetermined interval is provided between the seating sensor and the user's clothing or the like that comes into contact with or comes into contact with the front wall surface of the casing by forming a protrusion on the casing. A user at a position (on the toilet seat) distant from the front wall surface of the casing can be detected, and when the user's clothing or the like is close to or in contact with the front wall surface of the casing, the clothing or the like is removed. By detecting, it becomes possible to detect the seating of the user on the toilet seat, and as a result, as in the prior art,
Even though the user is sitting on the toilet seat, the clothes cannot be detected because the user's clothing is in close proximity to or in contact with the front wall of the casing, and the sanitary washing device cannot be used. Failures can be reliably prevented.

The seating sensor may be a filter fitted in a window hole opened in the front wall surface of the casing, or a recess formed by recessing the front wall surface of the casing corresponding to the position of the seating sensor. Since the filter is placed in parallel and close to the filter fitted in the window hole of the filter, it is possible to reliably prevent infrared rays from being reflected on the inner surface of the filter and from entering the light receiving section. By operating the operating means when not seated, it is possible to prevent erroneous ejection of the washing water.

Further, as described above, since a predetermined distance is provided between the seating sensor and the clothes of the user who comes close to or contact the front wall surface of the casing, the front wall surface of the casing or the casing The filter which is fitted into the window hole opened in the recess formed by recessing the front wall surface of the casing, and the clothing of the user who comes in contact with or comes into contact with the front wall surface of the casing, are necessarily predetermined. As a result, there is a problem that dust or dirty water adhering to the filter is erroneously detected by the seating sensor as clothing of a user approaching or contacting the front wall surface of the casing. Can be reliably avoided.

[Brief description of the drawings]

FIG. 1 is an enlarged plan view of a main part showing a first embodiment of the present invention.

FIG. 2 is an enlarged plan view of a main part showing an example in which infrared light from a light emitting unit is projected obliquely forward in the first embodiment.

FIG. 3 is an enlarged plan view of a main part showing a modification of the first embodiment.

FIG. 4A is an enlarged plan view of a main part showing a second embodiment of the present invention, and FIG. 4B is an enlarged plan view of a main part showing a modification of the second embodiment.

FIG. 5A is an enlarged plan view of a main part showing a third embodiment of the present invention, and FIG. 5B is an enlarged plan view of a main part showing a modification of the third embodiment.

FIG. 6A is an enlarged plan view of a main part showing a fourth embodiment of the present invention, and FIG. 6B is an enlarged plan view of a main part showing a modification of the fourth embodiment.

FIG. 7 is a perspective view showing a sanitary washing device provided with a seating detection device.

FIG. 8 is a block diagram illustrating a schematic configuration of a sanitary washing device.

FIG. 9 is a plan view showing a state where the user is seated on the toilet seat.

FIG. 10 is a main part enlarged plan view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sanitary washing apparatus 6 Casing 6a Window hole 6b Recessed part 6c Projection part 7 Toilet seat 10 Seating sensor 11 Light emitting part 12 Light receiving part 15, 25, 35 Filter 25a Recessed part 35a Projection

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Ryosuke Hayashi 2-1-1, Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka Prefecture Totoki Equipment Co., Ltd. (72) Takashi Ono 2, Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka 1-1-1, Tochiki Kiki Co., Ltd. F-term in the formula company (reference) 2D037 AD14 AD16 2D038 JA00 JB02 JB05 JC01 KA01 KA03 2D039 FA05

Claims (8)

[Claims] 1. A sanitary washing device provided with a seating sensor including a light emitting unit that emits infrared light and a light receiving unit that receives infrared light that is shielded and reflected by a user, wherein the seating sensor has a function of the sanitary washing device. Inside the casing that houses the
A filter that fits in the window hole between the casing and the front wall surface at a position corresponding to the window hole opened in the front wall surface of the casing, the filter being undetectable and approaching / contacting the front wall surface. A seating detecting device for a sanitary washing device, wherein the seating detecting device is arranged in a state where an interval capable of detecting clothes and the like of a person is provided. 2. A sanitary washing device comprising a seating sensor comprising a light emitting unit for emitting infrared light and a light receiving unit for receiving infrared light reflected and shielded by a user, wherein the seating sensor has a function of the sanitary washing device. Inside the casing that houses the
A filter that fits in the window hole between the casing and the front wall surface at a position corresponding to the window hole opened in the front wall surface of the casing, the filter being undetectable and approaching / contacting the front wall surface. A seating detection device for a sanitary washing device, characterized in that an interval for detecting clothes or the like of a person is provided, and infrared light emitted from a light emitting unit is arranged obliquely forward. 3. A sanitary washing device provided with a seating sensor including a light emitting unit that emits infrared light and a light receiving unit that receives infrared light reflected and shielded by a user, wherein the seating sensor has a function of the sanitary washing device. Inside the casing that houses the
A window hole opened on the front wall surface of the casing is close to, and arranged in a state of facing, a projection is formed on the surface side of the filter fitted to the window hole, and a bulge is formed. Close to the seating sensor and the front wall of the casing.
A seating detection device for a sanitary washing device, characterized in that an interval is provided between the contacting user's clothing and the like so that the clothing and the like can be detected by a seating sensor. 4. A sanitary washing device comprising a seating sensor comprising a light emitting section for emitting infrared rays and a light receiving section for receiving infrared rays which are shielded and reflected by a user, wherein the seating sensor has a function of the sanitary washing apparatus. Inside the casing that houses the
The casing is arranged close to and opposite to the window hole opened in the front wall surface of the casing, and a projection is formed on the front wall surface of the casing near the filter fitted in the window hole to form a protrusion. A sanitary washing device characterized in that a gap is provided between the seating sensor and the user's clothing that comes in contact with or comes into contact with the front wall surface of the casing, the space being capable of detecting the clothing or the like by the seating sensor. Seating detection device. 5. A concave portion is formed in the filter at a predetermined size from the front wall surface side of the casing toward the inside from the front wall side of the casing to form a concave portion, and the concave portion and the seating sensor are connected to each other. The seating detection device for a sanitary washing device according to claim 1 or 2, wherein the seating detection device is arranged close to the device. 6. A recess formed in the front wall surface of the casing by indenting a portion corresponding to a seating sensor inward with a predetermined dimension toward an inward direction, and a window opened in the recess. 3. The filter according to claim 1, wherein the filter fitted to the hole and the seating sensor are arranged close to each other.
A seating detection device for the sanitary washing device according to the above. 7. The seating detection of a sanitary washing device according to claim 1, wherein a housing for accommodating a light emitting unit and a light receiving unit constituting a seating sensor is formed integrally with the filter. apparatus. 8. The seating sensor is characterized in that infrared light projected from a light-emitting portion of the seating sensor is transmitted in a direction perpendicular to the filter, and is arranged close to and parallel to the filter. A seating detection device for a sanitary washing device according to claim 1.