JP4320768B2 - Toilet bowl cleaning device provided with human body sensing means and hand sensing means - Google Patents

Toilet bowl cleaning device provided with human body sensing means and hand sensing means Download PDF

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Publication number
JP4320768B2
JP4320768B2 JP2000298239A JP2000298239A JP4320768B2 JP 4320768 B2 JP4320768 B2 JP 4320768B2 JP 2000298239 A JP2000298239 A JP 2000298239A JP 2000298239 A JP2000298239 A JP 2000298239A JP 4320768 B2 JP4320768 B2 JP 4320768B2
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Japan
Prior art keywords
sensing means
human body
hand
sensing
cleaning device
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JP2000298239A
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JP2002106023A5 (en
JP2002106023A (en
Inventor
仁志 石丸
昭彦 木場
史樹 秋山
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Toto Ltd
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Toto Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は自動給水洗浄装置及び手感知により洗浄を行う便器洗浄装置に係り、特に好適な大便器・小便器用自動フラッシュバルブ等に関する。
【0002】
【従来の技術】
感知部を2つ設けた洗浄装置の先行技術として特開昭61−109832号公報が知られている。これは、第1感知部の感知信号に基づいて便器の駆動弁を作動させ、且又、第1感知部の感知信号がある時のみに第2感知部からの信号を許容して駆動弁を作動させるというものであった。
【0003】
【発明が解決しようとする課題】
しかしながら、従来の手感知手段は、特に和風便器に近設した場合、使用者と操作部との距離が近くなるため、例えばトイレットペーパーをとる際などに使用者の意図に反して洗浄を行ない、無駄に水を流してしまう問題があった。
【0004】
しかし、和風便器において誤作動を防止するために、例えば手感知手段の感知距離を縮めると、使用者が立って洗浄操作を行なう時、操作部が遠く、操作性が悪くなるという相反性があった。
【0005】
本発明は上記課題を解決するためになされたもので、本発明の目的は、人体感知手段の検知信号により使用者の動作を勘案して手感知手段の応答性をコントロールすることにある。
【0006】
【課題を解決するための手段】
上記目的を達成するために本発明においては、人体感知手段と手感知手段の信号に基づきバルブ駆動部を駆動する制御回路と、前記バルブ駆動部に基づき作動して水を吐水するバルブを備える便器洗浄装置において、前記人体感知手段による出力がしきい値を越えると、前記手感知手段の感知距離を短くすることを特徴とする。
【0007】
このように構成された便器洗浄装置を和風便器に適用する場合は人体感知手段を使用者が立った状態では足元付近を検知し、座った状態では使用者の胸元から下腹部付近を検知できる位置に設置する。この場合、足元付近と上半身では反射面積が違い、検知信号に差が生じるので使用者の立ち、座りの状態の判定を行なうことができる。この人体感知手段の検知信号に基づいて手感知手段の制御動作を変化させる。人体感知手段の検知信号に基づいて、使用者が立っていると判断した時には手感知手段の感知距離を長くして操作性を優先し、使用者が座っていると判断した時には手感知手段の感知距離を短くすることで誤感知を低減し節水性を向上させる。
【0008】
一方、洋風便器に適用する場合は、人体感知手段を使用者の背面に設置する。着座時と立位時では人体感知手段と使用者の距離が異なるため、それに伴い検知信号に差が生じる。これにより、使用者の立ち、座りの状態の判定を行なうことができる。この人体感知手段の検知信号に基づいて手感知手段の感知距離を変化させる。こうすることにより、手感知手段の誤感知を低減でき、節水性の向上を図ることができる。
【0009】
また、本発明に別形態としては、人体感知手段と手感知手段の信号に基づきバルブ駆動部を駆動する制御回路と、前記バルブ駆動部に基づき作動して水を吐水するバルブを備える便器洗浄装置において、前記人体感知手段による出力がしきい値を越えると、前記手感知手段の感知を判定するオンディレーを長くすることを特徴とする
【0010】
このように構成された便器洗浄装置を和風便器に適用する場合は人体感知手段を使用者が立った状態では足元付近を検知し、座った状態では使用者の胸元から下腹部付近を検知できる位置に設置する。この場合、足元付近と上半身では反射面積が違い、検知信号に差が生じるので使用者の立ち、座りの状態の判定を行なうことができる。この人体感知手段の検知信号に基づいて手感知手段の制御動作を変化させる。人体感知手段の検知信号に基づいて、使用者が立っていると判断した時には手感知手段のオンディレーを短くし、使用者が座っていると判断した時にはオンディレーを長くして誤感知の低減と節水性の向上を図る。
【0011】
一方、洋風便器に適用する場合は、人体感知手段を使用者の背面に設置する。着座時と立位時では人体感知手段と使用者の距離が異なるため、それに伴い検知信号に差が生じる。これにより、使用者の立ち、座りの状態の判定を行なうことができる。この人体感知手段の検知信号に基づいて手感知手段のオンディレーを変化させる。こうすることにより、手感知手段の誤感知を低減でき、節水性の向上を図ることができる。
【0012】
【発明の実施の態様】
以上説明した本発明の構成・作用を明らかにするために、以下本発明の好適な実施例について説明する。
【0013】
図1は、本発明に係わる実施例で、人体感知手段1と手感知手段2を備えた請求項1記載の便器洗浄装置7の外観斜視図である。便器洗浄装置7の前面に人体感知手段1を設け、便器洗浄装置7の上面に手感知手段2を設けている。矢印8は人体感知手段1の感知方向を示し、矢印9は手感知手段2の感知方向を示している。
【0014】
図2は、和風便器3において座った状態で洗浄を行なった場合の図である。感知距離調節は人体感知手段1が検知する積分電圧のレベル判定により行う。図3は使用前の積分電圧波形4の例である。図4のように人体感知手段1および手感知手段2で検知された積分電圧値が、しきい値5をこえた場合に駆動部hが作動し、洗浄が行われる。座って使用する時は、人体感知手段1は使用者の胸元から下腹部付近を感知しており、その積分電圧の大きさによって手感知手段2の感知距離を短くする。図5に示すように、感知部a(人体感知手段1)で検知した積分電圧値の大きさにより、感知距離制御回路eが作動し、その結果が感知部b(手感知手段2)の感知距離に反映される。これらの制御により、トイレットペーパーを巻きとる時などの誤作動の低減が可能となる。そして、使用者が座った状態で手感知手段2に意図的に手をかざしたときに感知され、洗浄が行われる。
【0015】
図6は和風便器3において立ち洗浄を行なった場合の図である。この時、人体感知手段1は使用者の足元付近を感知しており、その積分電圧値は座って洗浄を行う時のそれよりも小さく、誤感知がおこる可能性も少ない。そこで今度は、上記感知距離制御方法を用いて、手感知手段2の感知距離を長くする。これにより、立ち洗浄時の操作性の向上が可能となる。そして、使用者が立った状態で手感知手段2に意図的に手をかざしたとき感知され、洗浄が行われる。
【0016】
次に、図7のような洋風便器6の場合は、人体感知手段1が使用者の背面に設置されることになる。図8の洋風便器6での着座時は人体感知手段1と使用者の距離が短く、その検知信号に伴い手感知手段2の感知距離を短くする。これにより、着座時の誤作動を低減できる。反対に、立って洗浄を行う時は和風便器時と同様に手感知手段2の感知距離を長くすることで操作性の向上を図る。
【0017】
図9は、本発明の別実施形態に係わる実施例である。上記感知距離制御と理論的には同じで、感知部a(人体感知手段1)が作動している時は、図5に示すようにレベル判定をし感知部b(手感知手段2)のオンディレー制御を行う。例えば和風便器で使用者が座って洗浄を行う時は感知部bのオンディレーを長くする。反対に立って洗浄を行う時は感知部bのオンディレーを短くする。こうすれば手感知手段の操作性の向上と誤感知の低減、節水性の向上が実現できる。
【0018】
図10は、更に操作性を向上させるための制御例である。人体感知手段が使用者有から使用者無しと判定しても、手感知手段に一定期間(図中:T)使用者有の動作を維持する(オフディレー)ことで洗浄操作を可能にする。
【0019】
【発明の効果】
本発明は上記構成により次の効果を発揮する。人体感知手段と手感知手段の信号に基づきバルブ駆動部を駆動する制御回路と、バルブ駆動部に基づき作動して水を吐水するバルブを備え、かつ上記人体感知手段の検知信号に基づき手感知手段の制御動作を変化させる便器洗浄装置において、座位時の操作では、人体感知手段の検知信号に基づいて手感知手段の感知距離を縮める、またはオンディレーを長くするため、誤作動が低減され、それに伴う節水性の向上が見込める。
【0020】
反対に、立位時には人体感知手段の検知信号に基づいて手感知手段の感知距離を伸ばす、またはオンディレーを短くするため、操作性の向上が実現できる。
【図面の簡単な説明】
【図1】 本発明の便器洗浄装置の外観斜視図である
【図2】 和式便器に本発明の便器洗浄装置を設置し、使用者が座った状態で洗浄を行なう場合の側面図である。
【図3】 使用前の感知部(人体感知、手感知)の積分電圧波形の例である。
【図4】 使用中の感知部(人体感知、手感知)の積分電圧波形の例である。
【図5】 本発明の便器洗浄装置の洗浄、感知距離調節およびオンテ゛ィレー制御の構成を示すブロック図である。
【図6】 和式便器に本発明の便器洗浄装置を設置し、使用者が立った状態で洗浄を行なう場合の側面図である。
【図7】 本発明の便器洗浄装置を備えた洋式便器の外観斜視図である。
【図8】 洋式便器に本発明の便器洗浄装置を設置し、使用者が座った状態で使用している側面図である。
【図9】 本発明の便器洗浄装置の手感知手段にオンテ゛ィレーを設けた時のタイムチャートである。
【図10】 便器洗浄装置の手感知手段にオフディレーを設けた時のタイムチャートである。
【符号の説明】
1…人体感知手段
2…手感知手段
3…和風便器
4…積分電圧波形
5…しきい値
6…洋風便器
7…便器洗浄装置
8…人体感知手段の感知方向
9…手感知手段の感知方向
a…感知部(人体感知手段)
b…感知部(手感知手段)
c…レベル判定回路
d…しきい値判定回路
e…感知距離制御回路
f…オンディレー制御回路
g…出力回路
h…駆動部
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automatic water supply cleaning device and a toilet cleaning device for cleaning by hand detection, and more particularly to an automatic flush valve for a urinal and a urinal that are particularly suitable.
[0002]
[Prior art]
Japanese Patent Laid-Open No. 61-109832 is known as a prior art of a cleaning apparatus provided with two sensing units. This is to operate the toilet valve based on the sensing signal of the first sensing unit, and to allow the signal from the second sensing unit only when there is a sensing signal of the first sensing unit. It was to operate.
[0003]
[Problems to be solved by the invention]
However, the conventional hand sensing means, especially when placed close to a Japanese-style toilet, because the distance between the user and the operation unit is close, for example, when taking toilet paper, washing against the user's intention, There was a problem that water wasted unnecessarily.
[0004]
However, in order to prevent malfunctions in Japanese-style toilets, for example, when the sensing distance of the hand sensing means is shortened, there is a reciprocity that when the user stands and performs the washing operation, the operation part is far and the operability is deteriorated. It was.
[0005]
The present invention has been made to solve the above-described problems, and an object of the present invention is to control the responsiveness of the hand sensing means by taking into account the user's action based on the detection signal of the human body sensing means.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention, a toilet comprising a control circuit for driving a valve driving unit based on signals from the human body sensing means and the hand sensing means, and a valve that operates based on the valve driving unit to discharge water. In the cleaning apparatus, when the output from the human body sensing means exceeds a threshold value, the sensing distance of the hand sensing means is shortened.
[0007]
When applying the toilet cleaning device constructed in this way to a Japanese style toilet , the human body sensing means can detect the vicinity of the foot when the user is standing, and can detect the vicinity of the lower abdomen from the chest of the user when sitting Install in. In this case, since the reflection area is different between the vicinity of the foot and the upper body, and a difference occurs in the detection signal, it is possible to determine whether the user is standing or sitting. Based on the detection signal of the human body sensing means, the control operation of the hand sensing means is changed. Based on the detection signal of the human body sensing means, when it is judged that the user is standing, the sensing distance of the hand sensing means is lengthened to give priority to operability, and when it is judged that the user is sitting, the hand sensing means Shortening the sensing distance reduces false detection and improves water saving.
[0008]
On the other hand, when applied to a Western style toilet, the human body sensing means is installed on the back of the user. Since the distance between the human body sensing means and the user is different when sitting and standing, a difference occurs in the detection signal. As a result, it is possible to determine whether the user is standing or sitting. The sensing distance of the hand sensing means is changed based on the detection signal of the human body sensing means. By doing so, it is possible to reduce false sensing of the hand sensing means and improve water saving.
[0009]
According to another aspect of the present invention, a toilet cleaning device includes a control circuit that drives a valve driving unit based on signals from the human body sensing unit and the hand sensing unit, and a valve that operates based on the valve driving unit to discharge water. The on-delay for determining the sensing of the hand sensing means is lengthened when the output from the human body sensing means exceeds a threshold value .
[0010]
When applying the toilet cleaning device constructed in this way to a Japanese style toilet , the human body sensing means can detect the vicinity of the foot when the user is standing, and can detect the vicinity of the lower abdomen from the chest of the user when sitting Install in. In this case, since the reflection area is different between the vicinity of the foot and the upper body, and a difference occurs in the detection signal, it is possible to determine whether the user is standing or sitting. Based on the detection signal of the human body sensing means, the control operation of the hand sensing means is changed. Based on the detection signal of the human body sensing means, the on-delay of the hand sensing means is shortened when it is judged that the user is standing, and the on-delay is lengthened when it is judged that the user is sitting to reduce false sensing. And improve water saving.
[0011]
On the other hand, when applied to a Western style toilet, the human body sensing means is installed on the back of the user. Since the distance between the human body sensing means and the user is different when sitting and standing, a difference occurs in the detection signal. As a result, it is possible to determine whether the user is standing or sitting. The on-delay of the hand sensing means is changed based on the detection signal of the human body sensing means. By doing so, it is possible to reduce false sensing of the hand sensing means and improve water saving.
[0012]
BEST MODE FOR CARRYING OUT THE INVENTION
In order to clarify the configuration and operation of the present invention described above, preferred embodiments of the present invention will be described below.
[0013]
FIG. 1 is an external perspective view of a toilet bowl cleaning device 7 according to claim 1, comprising a human body sensing means 1 and a hand sensing means 2 according to an embodiment of the present invention . The human body sensing means 1 is provided on the front surface of the toilet bowl cleaning device 7, and the hand sensing means 2 is provided on the upper surface of the toilet bowl cleaning device 7. An arrow 8 indicates the sensing direction of the human body sensing means 1, and an arrow 9 indicates the sensing direction of the hand sensing means 2.
[0014]
FIG. 2 is a view when washing is performed while sitting in the Japanese-style toilet 3. The sensing distance is adjusted by determining the level of the integrated voltage detected by the human body sensing means 1. FIG. 3 shows an example of the integrated voltage waveform 4 before use. As shown in FIG. 4, when the integrated voltage value detected by the human body sensing means 1 and the hand sensing means 2 exceeds the threshold value 5, the drive unit h operates to perform cleaning. When sitting and using, the human body sensing means 1 senses the vicinity of the lower abdomen from the user's chest, and the sensing distance of the hand sensing means 2 is shortened according to the magnitude of the integrated voltage. As shown in FIG. 5, the sensing distance control circuit e operates according to the magnitude of the integrated voltage value sensed by the sensing part a (human body sensing means 1), and the result is sensed by the sensing part b (hand sensing means 2). Reflected in distance. By these controls, it is possible to reduce malfunctions such as when toilet paper is wound up. Then, when the user deliberately holds his / her hand over the hand sensing means 2 while sitting, the washing is performed.
[0015]
FIG. 6 is a view when standing cleaning is performed in the Japanese-style toilet 3. At this time, the human body sensing means 1 senses the vicinity of the user's feet, the integrated voltage value is smaller than that when sitting and cleaning, and there is less possibility of false sensing. Therefore, this time, the sensing distance of the hand sensing means 2 is increased by using the sensing distance control method. Thereby, the operability at the time of standing cleaning can be improved. Then, when the user stands on the hand sensing means 2 while standing, it is sensed and cleaning is performed.
[0016]
Next, in the case of the Western style toilet 6 as shown in FIG. 7, the human body sensing means 1 is installed on the back of the user. When sitting on the Western style toilet 6 in FIG. 8, the distance between the human body sensing means 1 and the user is short, and the sensing distance of the hand sensing means 2 is shortened in accordance with the detection signal. Thereby, the malfunction at the time of seating can be reduced. On the contrary, when washing is performed standing up, the operability is improved by increasing the sensing distance of the hand sensing means 2 as in the case of a Japanese-style toilet.
[0017]
FIG. 9 is an example according to another embodiment of the present invention . Theoretically the same as the sensing distance control described above, when the sensing unit a (human body sensing means 1) is operating, the level is determined as shown in FIG. 5 and the sensing unit b (hand sensing means 2) is turned on. Perform delay control. For example, when the user sits down and performs cleaning in a Japanese-style toilet, the on-delay of the sensing unit b is lengthened. When cleaning is performed in the opposite direction, the on-delay of the sensor b is shortened. In this way, it is possible to improve the operability of the hand sensing means, reduce false detection, and improve water saving.
[0018]
FIG. 10 shows a control example for further improving the operability . Even if the human body sensing means determines that the user is present and no user is present, the user sensing operation is maintained (off-delay) for a certain period of time (T in the figure).
[0019]
【The invention's effect】
The present invention exhibits the following effects by the above configuration. A control circuit for driving the valve driving unit based on signals from the human body sensing means and the hand sensing means; a valve for operating the valve driving unit to discharge water; and the hand sensing means based on the detection signal from the human body sensing means. In the toilet flushing device that changes the control action of the human body, in the operation in the sitting position, the sensing distance of the hand sensing means is shortened or the on-delay is lengthened based on the detection signal of the human body sensing means. The accompanying water saving can be expected.
[0020]
On the other hand, when standing, the sensing distance of the hand sensing means is extended based on the detection signal of the human body sensing means, or the on-delay is shortened, so that the operability can be improved.
[Brief description of the drawings]
FIG. 1 is an external perspective view of a toilet bowl cleaning device of the present invention .
FIG. 2 is a side view showing a case where the toilet cleaning device of the present invention is installed in a Japanese-style toilet and cleaning is performed with a user sitting.
FIG. 3 is an example of an integrated voltage waveform of a sensing unit (human body sensing, hand sensing) before use.
FIG. 4 is an example of an integrated voltage waveform of a sensing unit (human body sensing, hand sensing) in use.
FIG. 5 is a block diagram showing a configuration of cleaning, sensing distance adjustment, and on-delay control of the toilet bowl cleaning device of the present invention.
FIG. 6 is a side view showing a case where the toilet cleaning device of the present invention is installed in a Japanese-style toilet and cleaning is performed while a user is standing.
FIG. 7 is an external perspective view of a Western-style toilet equipped with the toilet bowl cleaning device of the present invention.
FIG. 8 is a side view in which the toilet bowl cleaning device of the present invention is installed in a Western-style toilet and the user is used in a sitting state.
FIG. 9 is a time chart when an on-delay is provided in the hand sensing means of the toilet bowl cleaning device of the present invention.
FIG. 10 is a time chart when an off-delay is provided in the hand sensing means of the toilet bowl cleaning device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Human body detection means 2 ... Hand detection means 3 ... Japanese-style toilet 4 ... Integral voltage waveform 5 ... Threshold value 6 ... Western-style toilet 7 ... Toilet washing device 8 ... Detection direction of human body detection means 9 ... Detection direction of hand detection means a ... Sensing part (human body sensing means)
b ... Sensing part (hand sensing means)
c: Level judgment circuit d ... Threshold judgment circuit e ... Sensing distance control circuit f ... On-delay control circuit g ... Output circuit h ... Driver

Claims (2)

人体感知手段と手感知手段の信号に基づきバルブ駆動部を駆動する制御回路と、前記バルブ駆動部に基づき作動して水を吐水するバルブを備える便器洗浄装置において、前記人体感知手段による出力がしきい値を越えると、前記手感知手段の感知距離を短くすることを特徴とする便器洗浄装置。 In a toilet cleaning device comprising a control circuit for driving a valve driving unit based on signals from the human body sensing means and the hand sensing unit, and a valve for operating the valve driving unit to discharge water, the output from the human body sensing unit is output. A toilet cleaning device , wherein when the threshold value is exceeded, the sensing distance of the hand sensing means is shortened. 人体感知手段と手感知手段の信号に基づきバルブ駆動部を駆動する制御回路と、前記バルブ駆動部に基づき作動して水を吐水するバルブを備える便器洗浄装置において、前記人体感知手段による出力がしきい値を越えると、前記手感知手段の感知を判定するオンディレーを長くすることを特徴とする便器洗浄装置。In a toilet bowl cleaning apparatus comprising a control circuit for driving a valve driving unit based on signals from the human body sensing means and the hand sensing means, and a valve that operates based on the valve driving unit to discharge water, an output from the human body sensing unit is provided. The toilet cleaning device according to claim 1, wherein when the threshold value is exceeded, the on-delay for determining the detection of the hand sensing means is lengthened.
JP2000298239A 2000-09-29 2000-09-29 Toilet bowl cleaning device provided with human body sensing means and hand sensing means Expired - Fee Related JP4320768B2 (en)

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