JP2000107081A - Hot water washing toilet seat device - Google Patents

Hot water washing toilet seat device

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Publication number
JP2000107081A
JP2000107081A JP10288046A JP28804698A JP2000107081A JP 2000107081 A JP2000107081 A JP 2000107081A JP 10288046 A JP10288046 A JP 10288046A JP 28804698 A JP28804698 A JP 28804698A JP 2000107081 A JP2000107081 A JP 2000107081A
Authority
JP
Japan
Prior art keywords
toilet seat
light
detection
detection signal
light receiving
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10288046A
Other languages
Japanese (ja)
Inventor
Takayuki Matsuo
隆之 松尾
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koito Industries Ltd
Original Assignee
Koito Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koito Industries Ltd filed Critical Koito Industries Ltd
Priority to JP10288046A priority Critical patent/JP2000107081A/en
Publication of JP2000107081A publication Critical patent/JP2000107081A/en
Pending legal-status Critical Current

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  • Toilet Supplies (AREA)
  • Sanitary Device For Flush Toilet (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a hot water washing toilet seat device capable of detecting minute changes in the seated condition of a user and coping with the changes. SOLUTION: When a user sits on a toilet seat, the buttocks of the user are located below the line of the direction of detection light pointed to the upper end of a toilet interior wall surface 15 at the front peripheral edge 14 of a stool side toilet seat 10, and the detection light is reflected by the buttocks of the user, the reflected detection light impinging on a light receiving part 35, which in turns outputs a detection signal matching the distance from a distance sensor 30 to the buttocks of the user. The detection signal of the light receiving part 35 makes it possible to determine whether or not the user is in the seated condition. The detection signal of the light receiving part 35 is detected at the elapse of every predetermined time to detect minute changes in the seated condition of the user.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、便器側便座の後部
に取り付けられる距離センサを備えて成る温水洗浄便座
装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water flush toilet seat device provided with a distance sensor attached to the rear of a toilet seat.

【０００２】[0002]

【従来の技術】従来の温水洗浄便座装置としては、例え
ば、実開平６−１４２７５号公報および、特開平９−１
２５４９５号公報に開示されているものがある。2. Description of the Related Art Conventional hot water flush toilet seat devices are disclosed, for example, in Japanese Utility Model Laid-Open No. 6-14275 and Japanese Patent Laid-Open No. 9-1.
There is one disclosed in Japanese Patent No. 25495.

【０００３】前者は、便器に洗浄装置が載置され、洗浄
装置に検出窓が開設され、発光部からの検出光が検出窓
を通して利用者である被検出対象で反射し、反射した検
出光が受光部に入射するようにしたものである。受光部
には半導***置検出素子（ＰＳＤ）が用いられ、受光部
に検出光が入射すると、受光部が距離センサから被検出
対象までの距離に応じた検出信号を出力し、制御部が検
出信号に基づいて利用者の利用状態を判断するようにし
ている。[0003] In the former, a cleaning device is placed on a toilet, a detection window is opened in the cleaning device, and detection light from a light emitting unit is reflected by a detection target as a user through the detection window, and the reflected detection light is reflected. The light is incident on the light receiving unit. A semiconductor position detecting element (PSD) is used for the light receiving unit. When detection light is incident on the light receiving unit, the light receiving unit outputs a detection signal corresponding to the distance from the distance sensor to the detection target, and the control unit outputs the detection signal. The use state of the user is determined based on the information.

【０００４】後者は、便座シートの周縁の対向する両側
部に発光素子および、受光素子がそれぞれ配設され、着
座使用状態においては、検出光が利用者の臀部で反射
し、反射した検出光が受光素子に入射するので、反射し
た検出光が受光素子に入射する場合と、反射しないで検
出光が受光素子に入射する場合とでは、受光素子に入射
する光量が増減して、受光素子の検出信号が変化し、そ
の変化によって、着座使用状態あるいは、立位使用状態
等を判断可能にしたものである。[0004] In the latter, a light emitting element and a light receiving element are respectively disposed on opposite sides of the periphery of the toilet seat sheet, and in a seating use state, detection light is reflected by a user's buttocks, and the reflected detection light is reflected. Since the light is incident on the light receiving element, the amount of light incident on the light receiving element increases or decreases depending on whether the reflected detection light is incident on the light receiving element or when the detection light is incident on the light receiving element without reflection. The signal changes, and it is possible to determine the seating use state or the standing use state based on the change.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、このよ
うな従来の温水洗浄便座装置では、前者においては、被
検出対象である利用者までの距離が、所定距離以上であ
るか否かで、利用者の利用状態を判断しており、利用者
の利用状態の細かな変化を検出する構成になっておら
ず、また、利用者の衣服が黒色系統等の、低い反射率で
あると、反射光量が不足して、受光部が感知し難くな
り、利用者までの距離を検出不能な場合が生じるという
問題点があった。However, in such a conventional hot-water flush toilet seat device, the former requires the user to determine whether the distance to the user to be detected is greater than or equal to a predetermined distance. Is not configured to detect minute changes in the user's usage state, and if the user's clothing has a low reflectance, such as a black system, the amount of reflected light There is a problem that the light receiving unit becomes difficult to sense due to a shortage and the distance to the user cannot be detected.

【０００６】後者は、発光素子からの検出光が反射する
被検出対象は、ほぼ一定の反射率を有する利用者の臀部
なので、着座使用状態と立位使用状態とでは、受光素子
の検出信号の変化を確実に検出できるので、前者の如き
検出不能な場合は生じないが、利用者の利用状態の細か
な変化を検出することができないという問題点があっ
た。In the latter case, the detection object from which the detection light from the light emitting element is reflected is the buttocks of a user having a substantially constant reflectivity. Therefore, the detection signal of the light receiving element is different between the sitting use state and the standing use state. Since the change can be detected with certainty, there is no case where the former cannot be detected, but there is a problem that it is not possible to detect a minute change in the usage state of the user.

【０００７】本発明は、このような従来の技術が有する
問題点に着目してなされたもので、利用者の着座状態の
細かな変化を検出して、その変化に対処することができ
るようにした温水洗浄便座装置を提供することを目的と
している。SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and is intended to detect a small change in a user's sitting state and to cope with the change. It is an object of the present invention to provide a warm water flush toilet seat device.

【０００８】[0008]

【課題を解決するための手段】かかる目的を達成するた
めの本発明の要旨とするところは、次の各項の発明に存
する。The gist of the present invention to achieve the above object lies in the following inventions.

【０００９】［１］便器側便座（１０）の後部に取り付
けられる距離センサ（３０）を備えて成る温水洗浄便座
装置において、前記距離センサ（３０）は、発光部（３
１）および、受光部（３５）を有し、前記発光部（３
１）は、前記便器側便座（１０）の後周縁（１３）近傍
から前記便器側便座（１０）の前周縁（１４）の便器内
壁面（１５）の上端に向けて検出光を出射し、前記受光
部（３５）は、前記便器側便座（１０）から下方へ突出
する被検出対象で反射した検出光を受光し、前記距離セ
ンサ（３０）から前記被検出対象までの距離に応じた検
出信号を出力して、利用者の着座状態の変化に対処可能
にすることを特徴とする温水洗浄便座装置。[1] In a warm water flush toilet seat device provided with a distance sensor (30) attached to the rear of the toilet seat (10), the distance sensor (30) includes a light emitting unit (3).
1) and a light receiving section (35), wherein the light emitting section (3)
1) emitting detection light from near the rear edge (13) of the toilet seat (10) toward the upper end of the inner wall surface (15) of the front edge (14) of the toilet seat (10); The light receiving unit (35) receives detection light reflected by a detection target projecting downward from the toilet side toilet seat (10), and performs detection according to a distance from the distance sensor (30) to the detection target. A warm water flush toilet seat device, which outputs a signal so as to be able to cope with a change in a user's sitting state.

【００１０】［２］便器側便座（１０）の後部に取り付
けられる距離センサ（３０）と、便器側便座（１０）の
周縁に沿って配される便座シート（２３）とを備えて成
る温水洗浄便座装置であって、制御部（４０）を有する
ものにおいて、前記距離センサ（３０）は、発光部（３
１）および、受光部（３５）を有し、前記発光部（３
１）は、前記便器側便座（１０）の後周縁（１３）近傍
から前記便器側便座（１０）の前周縁（１４）の便器内
壁面（１５）の上端または、前記便座シート（２３）の
前周縁部（２４）の内面に向けて検出光を出射し、前記
受光部（３５）は、前記便器側便座（１０）から下方へ
突出する被検出対象で反射した検出光を受光し、前記距
離センサ（３０）から前記被検出対象までの距離に応じ
た検出信号を出力し、前記制御部（４０）は、前記受光
部（３５）が出力する検出信号に基づき、利用者の着座
状態の変化に対処することを特徴とする温水洗浄便座装
置。[2] Hot water washing comprising a distance sensor (30) attached to the rear of the toilet seat (10) and a toilet seat (23) arranged along the periphery of the toilet seat (10). In a toilet seat device having a control unit (40), the distance sensor (30) includes a light emitting unit (3).
1) and a light receiving section (35), wherein the light emitting section (3)
1) The upper end of the inner wall surface (15) of the toilet bowl from the vicinity of the rear edge (13) of the toilet seat (10) to the front edge (14) of the toilet seat (10), or the toilet seat (23). The detection light is emitted toward the inner surface of the front peripheral portion (24), and the light receiving portion (35) receives the detection light reflected by the detection target projecting downward from the toilet seat (10), The control unit (40) outputs a detection signal according to the distance from the distance sensor (30) to the detection target, and the control unit (40) detects the user's sitting state based on the detection signal output by the light receiving unit (35). A warm water flush toilet seat device characterized by coping with changes.

【００１１】［３］前記制御部（４０）は、所定時間が
経過する毎に、前記受光部（３５）が出力する検出信号
を次々に更新していき、更新時の検出信号が前回の更新
時の検出信号に対して許容範囲を超えた場合に、着座者
の着座状態または、周囲の環境が変化したと判断するこ
とを特徴とする［２］に記載の温水洗浄便座装置。[3] The control section (40) updates the detection signal output from the light receiving section (35) one after another every time a predetermined time elapses, and the detection signal at the time of updating is updated by the previous updating. The warm water flush toilet seat device according to [2], wherein when the detection signal exceeds a permissible range with respect to the detection signal, it is determined that the seated state of the seated person or the surrounding environment has changed.

【００１２】［４］前記制御部（４０）は、装置本体を
設置した際に、前記受光部（３５）が出力する検出信号
を基準値とすることを特徴とする［２］に記載の温水洗
浄便座装置。[4] The hot water as set forth in [2], wherein the control section (40) uses a detection signal output from the light receiving section (35) as a reference value when the apparatus main body is installed. Cleaning toilet seat device.

【００１３】［５］便器側便座に取り付けられる距離セ
ンサを備えて成る温水洗浄便座装置において、前記距離
センサは、発光部（３１）および、受光部（３５）を有
し、前記発光部（３１）は、前記便器側便座（１０）の
一周縁近傍から前記一周縁とは異なる他の周縁に向けて
検出光を出射し、前記受光部（３５）は、前記便器側便
座（１０）から下方へ突出する被検出対象で反射した検
出光を受光し、前記距離センサ（３０）から前記被検出
対象までの距離に応じた検出信号を出力して、利用者の
着座状態の変化に対処可能にすることを特徴とする温水
洗浄便座装置。[5] In the warm water flush toilet seat device provided with a distance sensor attached to the toilet-side toilet seat, the distance sensor has a light emitting section (31) and a light receiving section (35), and the light emitting section (31). ) Emits detection light from near the periphery of the toilet seat (10) to another periphery different from the one periphery, and the light receiving portion (35) is located below the toilet seat (10). Receiving the detection light reflected by the detection target protruding toward the detection target, and outputting a detection signal corresponding to the distance from the distance sensor (30) to the detection target, thereby coping with a change in the seating state of the user. A hot water flush toilet seat device.

【００１４】次に、前記各項に記載された発明の作用に
ついて説明する。本発明の一つの構成では、発光部（３
１）は、便器側便座（１０）の後周縁（１２）近傍から
便器側便座（１０）の前周縁（１４）の便器内壁面（１
５）の上端に向けて、ほぼ略水平方向に検出光を出射し
ている。Next, the operation of the invention described in each of the above items will be described. In one configuration of the present invention, the light emitting unit (3
1) The toilet inner wall surface (1) from the vicinity of the rear edge (12) of the toilet seat (10) to the front edge (14) of the toilet seat (10).
The detection light is emitted in a substantially horizontal direction toward the upper end of 5).

【００１５】利用者が便座に着座しない非着座状態で
は、検出光は便器側便座（１０）の前周縁（１４）の便
器内壁面（１５）の上端で反射し、反射した検出光が受
光部（３５）に入射する。受光部（３５）は、距離セン
サ（３０）から便器側便座（１０）の前周縁（１４）の
便器内壁面（１５）の上端までの距離に応じた検出信号
を出力する。In a non-seated state in which the user does not sit on the toilet seat, the detection light is reflected at the upper end of the inner wall surface (15) of the front peripheral edge (14) of the toilet seat (10), and the reflected detection light is received by the light receiving portion. (35). The light receiving unit (35) outputs a detection signal corresponding to a distance from the distance sensor (30) to the upper end of the toilet inner wall surface (15) of the front periphery (14) of the toilet seat (10).

【００１６】利用者が便座に着座する着座状態では、利
用者の臀部は、便器側便座（１０）の前周縁（１４）の
便器内壁面（１５）の上端に向けられた検出光の方向線
より下方に位置するので、検出光は、利用者の臀部で反
射し、反射した検出光が受光部（３５）に入射する。こ
のとき、受光部（３５）は、距離センサ（３０）から利
用者の臀部までの距離に応じた検出信号を出力する。In a sitting state in which the user sits on the toilet seat, the user's buttocks are directed toward the upper end of the toilet inner wall surface (15) of the front peripheral edge (14) of the toilet seat (10). Since it is located further down, the detection light is reflected by the buttocks of the user, and the reflected detection light is incident on the light receiving unit (35). At this time, the light receiving unit (35) outputs a detection signal according to the distance from the distance sensor (30) to the user's buttocks.

【００１７】したがって、受光部（３５）の検出信号か
ら着座状態であるか否かを判断することができる。さら
に、例えば、受光部（３５）の検出信号を所定時間が経
過する毎に検出すれば、利用者の着座状態の細かな変化
を検出することができる。Therefore, it can be determined from the detection signal of the light receiving section (35) whether or not the seat is in a seated state. Further, for example, if the detection signal of the light receiving unit (35) is detected every time a predetermined time elapses, a minute change in the seating state of the user can be detected.

【００１８】また、本発明の別の構成では、発光部（３
１）は、便器側便座（１０）の後周縁（１３）近傍から
便器側便座（１０）の前周縁（１４）の便器内壁面（１
５）の上端または、前記便座シート（２３）の前周縁部
（２４）の内面に向けて、ほぼ略水平方向に検出光を出
射している。In another configuration of the present invention, the light emitting section (3
1) The toilet inner wall surface (1) from the vicinity of the rear edge (13) of the toilet seat (10) to the front edge (14) of the toilet seat (10).
The detection light is emitted in a substantially horizontal direction toward the upper end of 5) or the inner surface of the front peripheral portion (24) of the toilet seat sheet (23).

【００１９】すなわち、利用者が着座状態になると、利
用者の臀部が確実に検出光を遮ることになり、利用者の
臀部で反射した検出光が受光部（３５）に入射し、受光
部（３５）が、距離センサ（３０）から利用者の臀部ま
での距離に応じた検出信号を出力する。That is, when the user is seated, the buttocks of the user surely block the detection light, and the detection light reflected on the buttocks of the user enters the light receiving section (35), and the light receiving section (35). 35) outputs a detection signal corresponding to the distance from the distance sensor (30) to the buttocks of the user.

【００２０】制御部（４０）は、所定時間経過する毎に
受光部（３５）が出力する検出信号に基づき、利用者の
着座状態の細かな変化に対処することができ、例えば、
着座位置の前後方向の変位に対応させて、噴水ノズルを
適切な位置に移動することができる。The control section (40) can deal with a minute change in the seating state of the user based on the detection signal output from the light receiving section (35) every time a predetermined time elapses.
The fountain nozzle can be moved to an appropriate position in accordance with the longitudinal displacement of the seating position.

【００２１】さらに、本発明の別の構成では、制御部
（４０）は、所定時間が経過する毎に、受光部（３５）
が出力する検出信号を次々に更新していく。また、更新
時の検出信号は保存していく。そして、制御部（４０）
は、更新時の検出信号が前回の更新時の検出信号に対し
て許容範囲を超えた場合に、すなわち、受光部（３５）
の検出信号が微少な変化量でない場合に、着座者が着座
状態から非着座状態に変化し、反対に、非着座状態から
着座状態に変化し、または、周囲の環境自体が変化した
と判断する。例えば、周囲の環境自体が変化とは、温水
洗浄便座装置が便器から外された場合である。Further, according to another configuration of the present invention, the control unit (40) may control the light receiving unit (35) every time a predetermined time elapses.
Are successively updated. The detection signal at the time of updating is stored. And the control unit (40)
Indicates that the detection signal at the time of updating exceeds the allowable range with respect to the detection signal at the time of the previous update, that is, the light receiving unit (35)
If the detection signal is not a small change amount, it is determined that the seated person changes from the sitting state to the non-seating state, and conversely, changes from the non-seating state to the sitting state, or that the surrounding environment itself has changed. . For example, a change in the surrounding environment itself means a case where the warm water flush toilet seat device is removed from the toilet.

【００２２】さらに、本発明の別の構成では、本装置を
設置する際には、発光部（３１）からの検出光が、便器
側便座（１０）の後周縁（１３）近傍から便器側便座
（１０）の前周縁（１４）の便器内壁面（１５）の上端
または、前記便座シート（２３）の前周縁部（２４）の
内面で反射するように設定する。Further, in another configuration of the present invention, when the apparatus is installed, the detection light from the light emitting section (31) is transmitted from the vicinity of the rear edge (13) of the toilet seat (10) to the toilet seat. The upper surface of the toilet inner wall (15) of the front edge (14) of (10) or the inner surface of the front edge (24) of the toilet seat (23) is set to be reflected.

【００２３】本装置を設置し、電源を入れると、基準値
を設定のためのモードになる。当該モードでは、便器側
便座（１０）の前周縁（１４）の便器内壁面（１５）の
上端または、前記便座シート（２３）の前周縁部（２
４）の内面で反射した検出光が受光部（３５）に入射
し、受光部（３５）が検出信号を出力する。制御部（４
０）は、出力された検出信号を基準値とする。When the apparatus is installed and the power is turned on, a mode for setting a reference value is set. In this mode, the upper end of the toilet inner wall surface (15) of the front edge (14) of the toilet seat (10) or the front edge (2) of the toilet seat sheet (23).
The detection light reflected on the inner surface of 4) enters the light receiving section (35), and the light receiving section (35) outputs a detection signal. Control unit (4
0) uses the output detection signal as a reference value.

【００２４】設置時の検出信号が受光部（３５）の基準
値になるので、例えば、受光部（３５）を組み立てる際
にあるいは、組み立てた後に、検出信号のバラツキを検
査し、そのバラツキの主因となる受光部（３５）の感度
及び発光部（３１）の光出力のバラツキを調整する必要
がなく、バラツキを調整しない製造時のままの発光部
（３１）および受光部（３５）を組み立てて出荷するこ
とができる。Since the detection signal at the time of installation becomes a reference value of the light receiving portion (35), for example, when assembling the light receiving portion (35) or after assembling, the variation of the detection signal is inspected and the main cause of the variation is detected. It is not necessary to adjust the variation in the sensitivity of the light receiving unit (35) and the light output of the light emitting unit (31), and the light emitting unit (31) and the light receiving unit (35) are manufactured as they are without adjusting the variation. Can be shipped.

【００２５】さらに、本発明の別の構成では、距離セン
サ（３０）の発光部（３１）は、便器側便座（１０）の
一の周縁近傍から一の周縁とは異なる他の周縁に向け
て、ほぼ略水平方向に検出光を出射している。利用者が
便座に着座しない非着座状態では、検出光は前記他の周
縁で反射し、反射した検出光が距離センサ（３０）の受
光部（３５）に入射するようになる。Further, in another configuration of the present invention, the light emitting portion (31) of the distance sensor (30) is directed from the vicinity of one periphery of the toilet seat (10) to another periphery different from the one periphery. , The detection light is emitted in a substantially horizontal direction. In a non-seat state in which the user does not sit on the toilet seat, the detection light is reflected at the other periphery, and the reflected detection light is incident on the light receiving unit (35) of the distance sensor (30).

【００２６】利用者が便座に着座する着座状態では、利
用者の臀部は、便器側便座（１０）の他の周縁に向けら
れた検出光の方向線より下方に位置するので、検出光
は、利用者の臀部で反射し、反射した検出光が受光部
（３５）に入射する。このとき、受光部（３５）は、距
離センサ（３０）から利用者の臀部までの距離に応じた
検出信号を出力するので、受光部（３５）の検出信号か
ら着座状態であるか否かを判断することができる。さら
に、例えば、受光部（３５）の検出信号を所定時間が経
過する毎に検出すれば、利用者の着座状態の細かな変化
を検出することができる。In the sitting state in which the user sits on the toilet seat, the user's buttocks are located below the direction line of the detection light directed to the other periphery of the toilet seat (10). The reflected detection light is reflected by the user's buttocks and enters the light receiving unit (35). At this time, the light receiving unit (35) outputs a detection signal corresponding to the distance from the distance sensor (30) to the user's buttocks, so it is determined whether or not the user is in the seated state based on the detection signal of the light receiving unit (35). You can judge. Further, for example, if the detection signal of the light receiving unit (35) is detected every time a predetermined time elapses, a minute change in the seating state of the user can be detected.

【００２７】ここで、検出光射は、一の周縁とは異なる
他の周縁に向けて出射されるが、前記他の周縁として
は、便器側便座（１０）の内部空間を間にして前記一の
周縁とほぼ対向する周縁が好ましい。Here, the detection light beam is emitted toward another peripheral edge different from the one peripheral edge, and the other peripheral edge is defined by interposing an inner space of the toilet seat (10) therebetween. Is preferably substantially opposite to the peripheral edge of.

【００２８】また、距離センサ（３０）が設けられる場
所は、便器側便座（１０）の周縁部近傍であれば、どこ
でも良い。一般的に、距離センサ（３０）は便座装置の
本体内に組み込まれ、例えば、便座装置の本体が便器側
便座（１０）の周縁の両側部の一方近傍に取り付けられ
る場合には、距離センサ（３０）も同じく、前記周縁の
両側部の一方近傍に設けられることになる。The distance sensor (30) may be provided anywhere as long as it is near the periphery of the toilet seat (10). Generally, the distance sensor (30) is incorporated in the main body of the toilet seat device. For example, when the main body of the toilet seat device is mounted near one of both sides of the periphery of the toilet seat (10), the distance sensor (30) is used. 30) is also provided in the vicinity of one of both sides of the peripheral edge.

【００２９】[0029]

【発明の実施の形態】以下、図面に基づき本発明の一実
施の形態を説明する。各図は本発明の一実施の形態を示
している。図１は本発明の一実施の形態に係る温水洗浄
装置の取付状態を示す側面図である。図２は図１の部分
拡大図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Each drawing shows an embodiment of the present invention. FIG. 1 is a side view showing an attached state of the hot water cleaning device according to one embodiment of the present invention. FIG. 2 is a partially enlarged view of FIG.

【００３０】図１および、図２に示すように、温水洗浄
装置２０は、便器側便座１０の後部に取り付けられる本
体２１と、便器側便座１０の周縁１１に沿って配される
便座シート２３とを備えて成る。便座シート２３には、
その開口を閉じるための便蓋２５が取り付けられてい
る。As shown in FIGS. 1 and 2, the hot water washing apparatus 20 includes a main body 21 attached to a rear portion of the toilet seat 10 and a toilet seat sheet 23 arranged along a peripheral edge 11 of the toilet seat 10. It comprises. Toilet seat 23,
A toilet lid 25 for closing the opening is attached.

【００３１】温水洗浄便座装置２０の本体２１には、距
離センサ３０および、制御部４０が内蔵されている。距
離センサ３０は、ＬＥＤである発光部３１および、ＰＳ
Ｄ(Position Sensitive Device )である受光部３５を有
している。The body 21 of the hot water flush toilet seat device 20 has a built-in distance sensor 30 and a control unit 40. The distance sensor 30 includes a light emitting unit 31 that is an LED and a PS.
It has a light receiving section 35 which is D (Position Sensitive Device).

【００３２】発光部３１は、便器側便座１０の後周縁１
３近傍すなわち、本体２１の前面中央下部から便器側便
座１０の前周縁１４の便器内壁面１５の上端に向けて検
出光を出射するものである。発光部３１の検出光は、便
座シート２０の前周縁部２４の内面に向けて出射しても
よい。The light emitting portion 31 is provided at the rear edge 1 of the toilet seat 10.
3, the detection light is emitted from the lower front center of the main body 21 toward the upper end of the toilet inner wall surface 15 of the front peripheral edge 14 of the toilet seat 10. The detection light of the light emitting section 31 may be emitted toward the inner surface of the front peripheral portion 24 of the toilet seat sheet 20.

【００３３】発光部３１の検出光は、要は、便器側便座
１０の開口を間にして、発光部３１と略水平面上でほぼ
対向する位置に向けて出射すればよい。このとき、検出
光が射出する先には反射物が位置していることが必要で
ある。In short, the detection light of the light emitting section 31 may be emitted toward a position substantially opposed to the light emitting section 31 on a substantially horizontal plane with the opening of the toilet seat 10 interposed therebetween. At this time, it is necessary that a reflection object is located at a place where the detection light is emitted.

【００３４】検出光の出射方向をこのようにしておけ
ば、利用者が便器側便座１０に着座する着座状態（図２
において利用者を想像線で示す状態）では、利用者の臀
部である被検出対象が便器側便座１０の開口周縁から下
方へ突出し、検出光の光路（図２において想像線で示す
矢印線）を遮るようになる。If the emission direction of the detection light is set in this manner, the user sits on the toilet seat 10 (FIG. 2).
In a state where the user is indicated by an imaginary line in FIG. 2), the detection target, which is the buttocks of the user, protrudes downward from the periphery of the opening of the toilet-side toilet seat 10, and the optical path of the detection light (the arrow indicated by the imaginary line in FIG. 2) Become obstructed.

【００３５】受光部３５は、便器側便座１０の開口周縁
から下方へ突出する被検出対象で反射した検出光を受光
し、受光部３５から被検出対象（臀部）までの距離に応
じた検出信号を出力する。図３は、温水洗浄便座装置の
機能ブロック図である。図３に示すように、受光部３５
の出力電流Ｉａ，Ｉｂは、パルス光電流抜取回路に、対
数変換器および、差動増幅器を経て、検出信号（出力電
圧）がＬＥＤドライブ回路に同期してサンプルホールド
される。検出信号は、必要により制御部４０に取り込ま
れる。The light receiving section 35 receives the detection light reflected by the detection target projecting downward from the periphery of the opening of the toilet seat 10 and detects the detection signal according to the distance from the light reception section 35 to the detection target (hip). Is output. FIG. 3 is a functional block diagram of the warm water flush toilet seat device. As shown in FIG.
The output currents Ia and Ib pass through a pulsed photocurrent sampling circuit, a logarithmic converter, and a differential amplifier, and a detection signal (output voltage) is sampled and held in synchronization with an LED drive circuit. The detection signal is taken into the control unit 40 as needed.

【００３６】図４は受光部３６の機能を説明する図であ
る。図４に示すように、受光部３５の検出光（スポット
光）の当たる位置によって出力１と出力２の電流比が変
わる。つまりスポット光が中央に当たっている場合は、
出力１の電流Ｉａと出力２の電流Ｉｂは等しくなるが、
右にずれるとＩａ＜Ｉｂとなり、左にずれるとＩｂ＜Ｉ
ａとなる。FIG. 4 is a diagram for explaining the function of the light receiving section 36. As shown in FIG. 4, the current ratio between the output 1 and the output 2 changes depending on the position where the detection light (spot light) of the light receiving section 35 hits. In other words, if the spotlight hits the center,
Although the current Ia of the output 1 and the current Ib of the output 2 are equal,
Ia <Ib when shifted to the right, and Ib <I when shifted to the left.
a.

【００３７】Ｉａ，Ｉｂの増減の割合は、スポット光の
中心からのズレに比例し、検出光（スポット光）の位置
とＩｂ／Ｉａの関係は次式で与えられる。The rate of increase and decrease of Ia and Ib is proportional to the deviation from the center of the spot light, and the relationship between the position of the detection light (spot light) and Ib / Ia is given by the following equation.

【００３８】 Ｉｂ／Ｉａ＝（（Ｃ／２）＋ｄ）／（（Ｃ／２）−ｄ） ＝（１＋ｄ／（Ｃ／２））／（１−ｄ／（Ｃ／２）） スポット光の径は、小さい方がよく、ある広がりをもっ
ている場合は、その重心位置でＩｂ／Ｉａを決める。Ib / Ia = ((C / 2) + d) / ((C / 2) −d) = (1 + d / (C / 2)) / (1−d / (C / 2)) The smaller the diameter, the better, and if it has a certain extent, Ib / Ia is determined by its center of gravity.

【００３９】図５は、ＰＳＤである受光部３５を使用し
た測距原理を示す図である。FIG. 5 is a diagram showing the principle of distance measurement using the light receiving unit 35 which is a PSD.

【００４０】図５に示すように、受光部３５を使うと、
スポット光の位置と出力電流のリニアな関係が得られる
事を利用して、三角測量方式で被写体との距離を測るこ
とができる。As shown in FIG. 5, when the light receiving section 35 is used,
By utilizing the fact that a linear relationship between the position of the spotlight and the output current is obtained, the distance to the subject can be measured by a triangulation method.

【００４１】発光部３１の赤外光を投光レンズで集束し
細い検出光（ビーム光）にして被検出対象に当てる。被
検出対象で反射されるスポット光は受光部３５の受光面
に実像を結ぶ。図５においては、スポット光の強度中心
位置ｄは被写体距離Ｌに反比例し、近くなる程ｄが大き
くなる。この関係は、（ｆ／Ｌ＝ｄ／Ｓ）の式で表わさ
れる。The infrared light of the light emitting section 31 is converged by a light projecting lens and is converted into a thin detection light (beam light) and irradiates an object to be detected. The spot light reflected by the detection target forms a real image on the light receiving surface of the light receiving unit 35. In FIG. 5, the center position d of the intensity of the spot light is inversely proportional to the subject distance L, and d increases as the position decreases. This relationship is expressed by the equation (f / L = d / S).

【００４２】図３に示すように、制御部４０は、受光部
３５が出力する検出信号に基づき、その信号処理回路に
よる演算処理により、被検出対象と距離センサ３０との
間の距離を算出し、利用者の着座状態あるいは非着座状
態を判別するとともに、算出した距離の変化に対処す
る。例えば、噴水ノズルの位置を調節する。As shown in FIG. 3, the control section 40 calculates the distance between the object to be detected and the distance sensor 30 based on the detection signal output from the light receiving section 35 by arithmetic processing by the signal processing circuit. In addition, it determines whether the user is in a seated state or a non-seated state, and deals with a change in the calculated distance. For example, the position of the fountain nozzle is adjusted.

【００４３】また、制御部４０は、所定時間（例えば３
０ｓｅｃ ）が経過する毎に、前記サンプルホールドさ
れた検出信号（出力電圧）を次々に更新していき、更新
時の検出信号が前回の更新時の検出信号に対して許容範
囲を超えた場合に、着座者の着座状態または、周囲の環
境が変化したと判断する。Further, the control unit 40 operates for a predetermined time (for example, 3
0 sec), the sampled and held detection signal (output voltage) is updated one after another. When the detection signal at the time of update exceeds the allowable range with respect to the detection signal at the time of the previous update. It is determined that the sitting state of the seated person or the surrounding environment has changed.

【００４４】さらに、制御部４０は、装置本体を便器側
便座１０に設置した際の初期設定モード時に、例えば、
便器側便座１０の前周縁１４の便器内壁面１５の上端で
反射した検出光が受光部３５に入射し、そのときの検出
信号（出力電圧）を基準値とする。Further, the control unit 40 operates in the initial setting mode when the apparatus main body is installed on the toilet seat 10, for example,
The detection light reflected at the upper end of the toilet inner wall surface 15 on the front edge 14 of the toilet seat 10 enters the light receiving unit 35, and a detection signal (output voltage) at that time is used as a reference value.

【００４５】次に本実施の形態の作用を説明する。本装
置を最初に便器側便座１０に設置する際には、あるい
は、例えばメンテナンス時に一旦外した装置を再度便器
側便座１０に設置する際には、受光部３５からの検出光
が、便器側便座１０の後周縁１３近傍から便器側便座１
０の前周縁１４の便器内壁面１５の上端で反射するよう
に便器側便座１０の後部に設置する。Next, the operation of the present embodiment will be described. When the device is first installed on the toilet seat 10 or when, for example, the device once removed at the time of maintenance is installed again on the toilet seat 10, the detection light from the light receiving unit 35 is used as the detection light. The toilet seat 1 from the vicinity of the rear edge 13 of the toilet 10
It is installed at the rear of the toilet seat 10 so as to reflect at the upper end of the inner wall surface 15 of the front peripheral edge 14 of the toilet.

【００４６】図７に示すように、本装置を設置し、電源
を入れる。電源を入れると、運転モードであるかを判断
し（ステップＳ７０１）、運転モードでなければ（ステ
ップＳ７０１：Ｎ）、基準値を初期設定するための初期
設定モードになる（ステップＳ７０２）。初期設定モー
ドでは、便器側便座１０の前周縁１４の便器内壁面１５
の上端で反射した検出光が受光部の受光面にスポット光
として入射し、受光部３５が出力電流Ｉａ，Ｉｂを出力
する。出力電流Ｉａ，Ｉｂは、パルス光電流抜取回路
に、対数変換器および、差動増幅器を経て、発光部３１
の発光、すなわち、ＬＥＤドライブ回路の発光命令に同
期し、出力電圧となってサンプルホールドされる。As shown in FIG. 7, the apparatus is installed and the power is turned on. When the power is turned on, it is determined whether the operation mode is the operation mode (step S701). If the operation mode is not the operation mode (step S701: N), an initial setting mode for initial setting a reference value is set (step S702). In the initial setting mode, the toilet inner wall surface 15 of the front peripheral edge 14 of the toilet seat 10 is located.
Detection light reflected at the upper end of the light-receiving portion enters the light-receiving surface of the light-receiving portion as spot light, and the light-receiving portion 35 outputs output currents Ia and Ib. The output currents Ia and Ib are supplied to a pulsed light current sampling circuit via a logarithmic converter and a differential amplifier, and then to a light emitting unit 31.
, That is, the output voltage is sampled and held in synchronization with the light emission command of the LED drive circuit.

【００４７】制御部４０は、出力電圧である検出信号を
読み取り（ステップＳ７０３）、当該検出信号を基準値
とし、基準値を中心にした許容範囲（図６に太い実線で
示す範囲）を設定する（ステップＳ７０４）。設置時の
検出信号が基準値になるので、感度のバラツキを調整し
ない製造時のままの受光部を組み立てて出荷することが
できる。The control section 40 reads a detection signal as an output voltage (step S703), sets the detection signal as a reference value, and sets an allowable range centered on the reference value (a range indicated by a thick solid line in FIG. 6). (Step S704). Since the detection signal at the time of installation becomes the reference value, it is possible to assemble and ship the light receiving unit as it is manufactured without adjusting the variation in sensitivity.

【００４８】すなわち、例えば、受光部３５を本体２１
内に取り付ける際にあるいは、取り付けた後に、検出信
号のバラツキを検査したり、検出信号のバラツキの主因
となる受光部の感度を調整する必要がない。That is, for example, the light receiving section 35 is
There is no need to inspect for variations in the detection signal or adjust the sensitivity of the light receiving section, which is the main cause of the variation in the detection signal, when or after mounting the module inside.

【００４９】通常の運転モードでは（ステップＳ７０
１：Ｙ）、発光部３１の赤外光は、投光レンズで集束し
細い検出光（ビーム光）となって、便器側便座１０の後
周縁１３近傍から便器側便座１０の前周縁１４の便器内
壁面１５の上端に向けて出射している。In the normal operation mode (step S70)
1: Y), the infrared light of the light emitting unit 31 is focused by the light projecting lens to be a thin detection light (beam light), and the detection light from the vicinity of the rear edge 13 of the toilet seat 10 to the front edge 14 of the toilet seat 10. The light is emitted toward the upper end of the inner wall surface 15 of the toilet.

【００５０】利用者が便座に着座しない非着座状態で
は、検出光は便器側便座１０の前周縁１４の便器内壁面
１５の上端で反射し、反射した検出光が受光部３５の受
光面にスポット光となって入射する。受光部３５の出力
電流Ｉａ，Ｉｂは、検出信号（出力電圧）となってサン
プルホールドされる。In a non-seat state where the user does not sit on the toilet seat, the detection light is reflected at the upper end of the inner wall surface 15 of the front peripheral edge 14 of the toilet seat 10, and the reflected detection light is spotted on the light receiving surface of the light receiving unit 35. Light is incident. The output currents Ia and Ib of the light receiving unit 35 are sampled and held as detection signals (output voltages).

【００５１】制御部４０は、通常は所定時間（例えば３
０ｓｅｃ）が経過する毎に（ステップＳ７０５）、出力
電圧である検出信号を読み取る（ステップＳ７０６）。
このとき、検出信号（出力電圧）は、距離センサ３０か
ら便器側便座１０の前周縁１４の便器内壁面１５の上端
までの距離に応じた出力値となる。The control unit 40 normally operates for a predetermined time (for example, 3
Every time 0 sec) elapses (step S705), a detection signal as an output voltage is read (step S706).
At this time, the detection signal (output voltage) has an output value corresponding to the distance from the distance sensor 30 to the upper end of the toilet inner wall surface 15 of the front peripheral edge 14 of the toilet seat 10.

【００５２】図２に利用者を想像線で表した着座状態で
は、利用者の臀部は、便器側便座１０の前周縁１４の便
器内壁面１５の上端に向けられた検出光の方向線より下
方に位置する。この状態では、利用者の臀部は、便器内
壁面１５の上端に向けられる検出光を確実に遮ることに
なり、検出光は、利用者の臀部で反射し、反射した検出
光が受光部３６の受光面にスポット光として入射する。In the seated state in which the user is represented by imaginary lines in FIG. 2, the user's buttocks are lower than the direction line of the detection light directed to the upper end of the inner wall surface 15 of the front peripheral edge 14 of the toilet seat 10. Located in. In this state, the buttocks of the user will surely block the detection light directed to the upper end of the inner wall surface 15 of the toilet bowl, and the detection light will be reflected by the buttocks of the user, and the reflected detection light will The light is incident on the light receiving surface as spot light.

【００５３】このとき、検出信号（出力電圧）は、距離
センサ３０から利用者の臀部までの距離に応じた出力値
となる。制御部４０は、検出信号が基準値に基づく許容
範囲内であるかを判断する（ステップＳ７０７）。At this time, the detection signal (output voltage) has an output value corresponding to the distance from the distance sensor 30 to the buttocks of the user. The control unit 40 determines whether the detection signal is within an allowable range based on the reference value (Step S707).

【００５４】検出信号が許容範囲内である場合に（ステ
ップＳ７０７：Ｙ）、検出信号に基づき、利用者の着座
状態の細かな変化に対処することができ、例えば、着座
位置の変化に応じて、噴水ノズルを移動することができ
る（ステップＳ７０８）。When the detection signal is within the allowable range (step S707: Y), it is possible to cope with a small change in the seating state of the user based on the detection signal. Then, the fountain nozzle can be moved (step S708).

【００５５】さらに、制御部４０は、検出信号を次々に
更新し、更新時の検出信号を保存していく（ステップＳ
７１０）。Further, the control unit 40 updates the detection signals one after another and stores the detection signals at the time of updating (step S).
710).

【００５６】検出信号が許容範囲外である場合に（ステ
ップＳ７０７：Ｎ）、制御部４０は非着座状態から着座
状態への変化し、反対に着座状態から非着座状態への変
化しまたは、周囲の環境（トイレ環境）自体が変化した
と判断する。When the detection signal is out of the permissible range (step S707: N), the control unit 40 changes from the non-seated state to the seated state, and conversely, changes from the seated state to the non-seated state or the surrounding state. It is determined that the environment (toilet environment) itself has changed.

【００５７】なお、前記実施の形態おいては、制御部４
０が検出信号の変化を学習して、多様な制御を行うこと
ができる。例えば、図６に示すように、距離Ａより短い
距離ａに対応する検出信号（出力電圧）が出力された場
合でも、許容範囲からの変化の過程を学習しておけば、
非着座状態と着座状態との一方から他方への変化、トイ
レ環境の変化を判定することができる。In the above embodiment, the control unit 4
0 learns the change of the detection signal and can perform various controls. For example, as shown in FIG. 6, even if a detection signal (output voltage) corresponding to a distance a shorter than the distance A is output, if the process of change from the allowable range is learned,
A change from one of the non-seated state and the seated state to the other, and a change in the toilet environment can be determined.

【００５８】[0058]

【発明の効果】以上説明したように、本発明の一つの構
成では、利用者が便座に着座する着座状態では、利用者
の臀部は、便器側便座の前周縁の便器内壁面の上端に向
けられた検出光の方向線より下方に位置し、検出光は、
利用者の臀部で反射し、反射した検出光が受光部に入射
するので、受光部は、距離センサから利用者の臀部まで
の距離に応じた検出信号を出力し、受光部の検出信号か
ら着座状態であるか否かを判断することができ、例え
ば、受光部の検出信号を所定時間が経過する毎に検出す
れば、利用者の着座状態の細かな変化を検出することが
できる。As described above, in one configuration of the present invention, in the seated state where the user sits on the toilet seat, the buttocks of the user face the upper end of the inner wall surface of the toilet at the front edge of the toilet seat on the toilet side. The detection light is located below the direction line of the detected light,
Since the reflected light is reflected by the user's buttocks and the reflected detection light is incident on the light receiving unit, the light receiving unit outputs a detection signal corresponding to the distance from the distance sensor to the user's buttocks and sits down from the detection signal of the light receiving unit. It is possible to determine whether or not the user is in a state. For example, if the detection signal of the light receiving unit is detected every time a predetermined time elapses, a minute change in the user's sitting state can be detected.

【００５９】また、本発明の別の構成では、利用者が着
座状態になると、利用者の臀部が確実に検出光を遮るこ
とになり、利用者の臀部で反射した検出光が受光部に入
射し、受光部が、距離センサから利用者の臀部までの距
離に応じた検出信号を出力するので、制御部は、所定時
間経過する毎に受光部が出力する検出信号に基づき、利
用者の着座状態の細かな変化に対処することができ、例
えば、着座位置の前後方向の変位に対応させて、噴水ノ
ズルを適切な位置に移動することができる。In another configuration of the present invention, when the user is in a sitting state, the user's buttocks surely block the detection light, and the detection light reflected on the user's buttocks enters the light receiving unit. Then, since the light receiving unit outputs a detection signal corresponding to the distance from the distance sensor to the user's hips, the control unit determines whether the user is seated based on the detection signal output by the light receiving unit every predetermined time. It is possible to cope with a minute change in the state, and for example, it is possible to move the fountain nozzle to an appropriate position in accordance with the displacement of the seating position in the front-back direction.

【００６０】さらに、本発明の別の構成では、制御部
は、所定時間が経過する毎に、受光部が出力する検出信
号を次々に更新し、更新時の検出信号が前回の更新時の
検出信号に対して許容範囲を超えた場合に、着座者が着
座状態から非着座状態に変化し、または、周囲の環境自
体が変化したことを判断するようにしたので、着座状態
の細かな変化および、着座状態の大きな変化にそれぞれ
対処することができる。Further, in another configuration of the present invention, the control unit updates the detection signal output from the light receiving unit one after another every time a predetermined time elapses, and the detection signal at the time of updating is the detection signal at the time of the previous update. When the permissible range for the signal is exceeded, the seated person changes from the seated state to the non-seated state, or it is determined that the surrounding environment itself has changed. Therefore, it is possible to cope with a large change in the sitting state.

【００６１】さらに、本発明の別の構成では、本装置を
設置する際に、便器側便座の前周縁の便器内壁面の上端
または、前記便座シートの前周縁部の内面で反射した検
出光が受光部に入射し、受光部が検出信号を出力し、制
御部が設置時の検出信号を基準値とするので、例えば、
受光部を組み立てる際にあるいは、組み立てた後に、検
出信号のバラツキを検査し、そのバラツキの主因となる
受光部の感度のバラツキを調整する必要がなく、バラツ
キを調整しない製造時のままの受光部を組み立てて出荷
することができる。Further, in another configuration of the present invention, when the apparatus is installed, the detection light reflected on the upper end of the inner wall surface of the toilet at the front edge of the toilet seat or on the inner surface of the front edge of the toilet seat sheet. Since the light enters the light receiving unit, the light receiving unit outputs a detection signal, and the control unit uses the detection signal at the time of installation as a reference value, for example,
When assembling or after assembling the light receiving unit, it is not necessary to adjust the sensitivity of the light receiving unit, which is the main cause of the variation, by inspecting the variation of the detection signal. Can be assembled and shipped.

【００６２】さらに、本発明の別の構成では、距離セン
サの発光部は、便器側便座の一の周縁近傍から一の周縁
とは異なる他の周縁に向けて、ほぼ略水平方向に検出光
を出射し、着座状態において、利用者の臀部は、便器側
便座の前周縁の便器内壁面の上端に向けられた検出光の
方向線より下方に位置し、検出光は、利用者の臀部で反
射し、反射した検出光が受光部に入射するので、受光部
は、距離センサから利用者の臀部までの距離に応じた検
出信号を出力し、受光部の検出信号から着座状態である
か否かを判断することができ、例えば、受光部の検出信
号を所定時間が経過する毎に検出すれば、利用者の着座
状態の細かな変化を検出することができる。Further, in another configuration of the present invention, the light emitting portion of the distance sensor emits detection light in a substantially horizontal direction from near one peripheral edge of the toilet seat to another peripheral edge different from the one peripheral edge. In the outgoing and seated state, the buttocks of the user are located below the direction line of the detection light directed to the upper end of the inner wall surface of the toilet at the front edge of the toilet seat, and the detection light is reflected by the buttocks of the user Then, since the reflected detection light is incident on the light receiving unit, the light receiving unit outputs a detection signal corresponding to the distance from the distance sensor to the user's buttocks, and determines whether or not the user is seated based on the detection signal of the light receiving unit. For example, if the detection signal of the light receiving unit is detected each time a predetermined time elapses, a minute change in the seating state of the user can be detected.

【図面の簡単な説明】[Brief description of the drawings]

【図１】本発明の一実施の形態に係る温水洗浄装置の取
付状態を示す側面図である。FIG. 1 is a side view showing an attached state of a hot water cleaning device according to one embodiment of the present invention.

【図２】図１の部分拡大図である。FIG. 2 is a partially enlarged view of FIG.

【図３】本発明の一実施の形態に係る温水洗浄便座装置
の機能ブロック図である。FIG. 3 is a functional block diagram of the hot water flush toilet seat device according to one embodiment of the present invention.

【図４】本発明の一実施の形態に係る受光部の機能を説
明する図である。FIG. 4 is a diagram illustrating a function of a light receiving unit according to one embodiment of the present invention.

【図５】本発明の一実施の形態に係るＰＳＤである受光
部を使用した測距原理を示す図である。FIG. 5 is a diagram illustrating a principle of distance measurement using a light receiving unit that is a PSD according to an embodiment of the present invention.

【図６】本発明の一実施の形態に係る受光部の検出信号
（出力電圧）と測距距離との関係を示す関係図である。FIG. 6 is a relationship diagram showing a relationship between a detection signal (output voltage) of a light receiving unit and a distance measurement distance according to one embodiment of the present invention.

【図７】本発明の一実施の形態に係る温水洗浄便座装置
のフロー図である。FIG. 7 is a flowchart of the hot water flush toilet seat device according to one embodiment of the present invention.

【符号の説明】[Explanation of symbols]

１０…便器側便座 １１…周縁 １３…後周縁 １４…前周縁 １５…便器内壁面 ２０…温水洗浄装置 ２１…本体 ２３…便座シート ２５…便蓋 ３０…距離センサ ３１…発光部 ３５…受光部 ４０…制御部 DESCRIPTION OF SYMBOLS 10 ... Toilet side toilet seat 11 ... Perimeter 13 ... Rear perimeter 14 ... Front perimeter 15 ... Toilet inner wall surface 20 ... Hot water washing apparatus 21 ... Main body 23 ... Toilet seat sheet 25 ... Toilet lid 30 ... Distance sensor 31 ... Light emitting part 35 ... Light receiving part 40 … Control unit

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】便器側便座の後部に取り付けられる距離セ
ンサを備えて成る温水洗浄便座装置において、 前記距離センサは、発光部および、受光部を有し、 前記発光部は、前記便器側便座の後周縁近傍から前記便
器側便座の前周縁の便器内壁面の上端に向けて検出光を
出射し、 前記受光部は、前記便器側便座から下方へ突出する被検
出対象で反射した検出光を受光し、前記距離センサから
前記被検出対象までの距離に応じた検出信号を出力し
て、利用者の着座状態の変化に対処可能にすることを特
徴とする温水洗浄便座装置。1. A warm water flush toilet seat device comprising a distance sensor attached to a rear portion of a toilet seat, wherein the distance sensor has a light emitting portion and a light receiving portion, and wherein the light emitting portion is provided on the toilet seat side. The detection light is emitted from the vicinity of the rear edge toward the upper end of the inner wall surface of the toilet at the front edge of the toilet seat, and the light receiving unit receives the detection light reflected by the detection target projecting downward from the toilet seat. And a detection signal corresponding to a distance from the distance sensor to the object to be detected is output, so that a change in a seating state of a user can be dealt with. 【請求項２】便器側便座の後部に取り付けられる距離セ
ンサと、便器側便座の周縁に沿って配される便座シート
とを備えて成る温水洗浄便座装置であって、制御部を有
するものにおいて、 前記距離センサは、発光部および、受光部を有し、 前記発光部は、前記便器側便座の後周縁近傍から前記便
器側便座の前周縁の便器内壁面の上端または、前記便座
シートの前周縁部の内面に向けて検出光を出射し、 前記受光部は、前記便器側便座から下方へ突出する被検
出対象で反射した検出光を受光し、前記距離センサから
前記被検出対象までの距離に応じた検出信号を出力し、 前記制御部は、前記受光部が出力する検出信号に基づ
き、利用者の着座状態の変化に対処することを特徴とす
る温水洗浄便座装置。2. A warm water flush toilet seat device comprising a distance sensor attached to a rear portion of a toilet seat and a toilet seat sheet arranged along a peripheral edge of the toilet seat, and having a control unit, The distance sensor has a light-emitting portion and a light-receiving portion, and the light-emitting portion is located at a position near a rear edge of the toilet-side toilet seat and an upper end of a toilet inner wall surface at a front edge of the toilet-side toilet seat or a front edge of the toilet seat sheet. The detection unit emits the detection light toward the inner surface of the unit, the light receiving unit receives the detection light reflected by the detection target projecting downward from the toilet-side toilet seat, and detects the detection light at a distance from the distance sensor to the detection target. The controller according to claim 1, wherein the controller outputs a corresponding detection signal, and the controller responds to a change in the seating state of the user based on the detection signal output by the light receiver. 【請求項３】前記制御部は、所定時間が経過する毎に、
前記受光部が出力する検出信号を次々に更新していき、
更新時の検出信号が前回の更新時の検出信号に対して許
容範囲を超えた場合に、着座者の着座状態または、周囲
の環境が変化したと判断することを特徴とする請求項２
に記載の温水洗浄便座装置。3. The control unit according to claim 2, wherein:
Update the detection signal output by the light receiving section one after another,
3. The method according to claim 2, wherein when the detection signal at the time of the update exceeds an allowable range with respect to the detection signal at the time of the previous update, it is determined that the sitting state of the occupant or the surrounding environment has changed.
A warm water flush toilet seat device according to item 1. 【請求項４】前記制御部は、装置本体を設置した際に、
前記受光部が出力する検出信号を基準値とすることを特
徴とする請求項２に記載の温水洗浄便座装置。4. The control unit according to claim 1, further comprising:
The hot water flush toilet seat device according to claim 2, wherein the detection signal output by the light receiving unit is used as a reference value. 【請求項５】便器側便座に取り付けられる距離センサを
備えて成る温水洗浄便座装置において、 前記距離センサは、発光部および、受光部を有し、 前記発光部は、前記便器側便座の一周縁近傍から前記一
周縁とは異なる他の周縁に向けて検出光を出射し、 前記受光部は、前記便器側便座から下方へ突出する被検
出対象で反射した検出光を受光し、前記距離センサから
前記被検出対象までの距離に応じた検出信号を出力し
て、利用者の着座状態の変化に対処可能にすることを特
徴とする温水洗浄便座装置。5. A hot water flush toilet seat device comprising a distance sensor attached to a toilet seat, wherein the distance sensor has a light emitting portion and a light receiving portion, wherein the light emitting portion is a peripheral edge of the toilet side toilet seat. The detection light is emitted from the vicinity to another edge different from the one edge, and the light receiving unit receives the detection light reflected by the detection target projecting downward from the toilet-side toilet seat, and receives the detection light from the distance sensor. A warm water flush toilet seat device, which outputs a detection signal according to the distance to the detection target so as to cope with a change in a user's sitting state.
JP10288046A 1998-10-09 1998-10-09 Hot water washing toilet seat device Pending JP2000107081A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10288046A JP2000107081A (en) 1998-10-09 1998-10-09 Hot water washing toilet seat device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10288046A JP2000107081A (en) 1998-10-09 1998-10-09 Hot water washing toilet seat device

Publications (1)

Publication Number Publication Date
JP2000107081A true JP2000107081A (en) 2000-04-18

Family

ID=17725144

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10288046A Pending JP2000107081A (en) 1998-10-09 1998-10-09 Hot water washing toilet seat device

Country Status (1)

Country Link
JP (1) JP2000107081A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004150240A (en) * 2002-11-01 2004-05-27 Matsushita Electric Ind Co Ltd Sanitary cleaning device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004150240A (en) * 2002-11-01 2004-05-27 Matsushita Electric Ind Co Ltd Sanitary cleaning device

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