JP4300506B2

JP4300506B2 - Toilet device

Info

Publication number: JP4300506B2
Application number: JP2002072387A
Authority: JP
Inventors: 祐一古田; 利雄小黒; 浩二峯; 昌之永石
Original assignee: Toto Ltd
Current assignee: Toto Ltd
Priority date: 2002-03-15
Filing date: 2002-03-15
Publication date: 2009-07-22
Anticipated expiration: 2022-03-15
Also published as: JP2003268849A

Description

【０００１】
【発明の属する技術分野】
本発明は、高周波の電波を利用した人体検知装置を備えた便器装置に係わり、特に、便座・便蓋等の可動部の位置や姿勢の影響を受けずに、確実に人体を検知するのに好適な人体検知装置を備えた便器装置に関する。
【０００２】
【従来の技術】
従来高周波の電波を利用した人体検知装置としては、送信波と受信波の周波数の差を検出して動きを検知するドップラー式や、パルス波を送信して受信時の遅れ時間をもとに距離や動きを検出するレーダー式のものが提案されている。
【０００３】
【発明が解決しようとする課題】
従来、便器装置の人体検知装置には赤外線を利用した物が多く採用されてきているが、この場合、赤外線を透過し、可視光等の外乱光を防ぐフィルタやレンズ等を外観部に露出させて配置する必要があり、また、人体と検知部間に便座部や便蓋部といった可動部が、位置しないように配置する必要があり、便座装置の外観に対する制約となったり、誤検知防止のために便座部や便蓋部の姿勢を検知する別部材を設けて、人体検知装置の駆動を制御することが多い。
これに比べ、高周波の電波を利用した人体検知装置は、利用される便器装置の外郭部材として多く用いられる樹脂や陶器等の材料を透過できるため、隠蔽が可能で、便器装置の意匠性の向上や人体検知装置の配置の自由度が高いというメリットがある。
【０００４】
高周波の電波を利用した人体検知装置として、従来多く利用されているドップラー式の場合には、送信波の周波数と受信波の周波数の差分により動きを検出する構成であり、また、その差分信号の振幅の大小で距離の概略を判断できるように構成している。また、便器装置内に組み込むことによって生じる内部反射等の定在波の影響を打ち消すため、低周波成分をカットする構成としている。
しかしながら、便座部や便蓋部といった可動部を備えた便器装置においては、構成する部材が、高周波の電波を透過するといっても、入射角度によっては一部が境界面で反射し、また内部を透過する際には屈折という現象も起こり、送信波や受信波が減衰してしまい便座部や便蓋部の姿勢により少なからず検知感度の低下等の影響を受けてしまう。
【０００５】
これに対して、便座部や便蓋部の姿勢による影響を受けないよう、従来の赤外線を利用したものと同じように、配置に配慮したり、便座部や便蓋部の姿勢を検知する別部材を設けて駆動を制御したり、信号を無視するなどの対応をしており、部材を透過できるという特性を十分に利用できていない。
【０００６】
また、レーダー式の場合には、パルス波を送信して受信波との重なり部分で動きを、遅れ時間で距離を検知可能であるが、高周波の電波の移動速度は光速（約3×10⁸m/s）であるため、わずか数メートル以内の近距離においては数ナノ秒レベルの時間計測が必要となり、ＧHzレベルのＣＰＵが必要になる等の制御上の問題点があり、近距離用に用いられることがなく、ましてや組み込まれる制御機器が備える各機能を駆動させたり、有効にさせたりするために利用されるようなものに用いられることはない。
【０００７】
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、便座部や便蓋部といった可動部の影響を受けにくく、安定して複数の領域に分けて人体を検知するのに好適な高周波の電波を利用した人体検知装置を備えた便器装置を提供することにある。
【０００８】
【課題を解決するための手段および作用・効果】
上記目的を達成するために請求項１は、トイレ内に設置され、便器部とその上方に回転自在に枢軸される便座部および便蓋部を備えると共に、送信波と人体によって跳ね返された反射波を受信して得られる受信波により生じる検波信号に基づき人体を検知する高周波の電波を利用した人体検知装置を、開放時の便蓋部より後方に備えた便器装置において、前記人体検知装置の電波の送信方向が、便蓋部開放時に便蓋部上面と対向すると共に、対向する便蓋部上面に対して略垂直となるように、且つ前記人体検知装置の指向角が便器装置に対して左右方向よりも上下方向が広くなるように、且つ送受信部の送信方向の投影面の少なくとも半分以上が、閉止時の便蓋上面より上方に位置するように、人体検知装置の電波の送受信部を配置し、前記便座部に、回転自在に枢軸される左右の枢軸部間をつなぐ壁面を備え、前記人体検知装置の電波の送受信部の送信方向の投影面の少なくとも半分以上が、便座部の閉止時における前記壁面の上端が便座部の開放時において位置する位置より下方に位置するように人体検知装置の電波の送受信部を配置したことを特徴としている。
従って、高周波の電波の放射出力や受信感度の高い送信方向に対して、開放時の便蓋部上面が略垂直となるように配置しているため、便蓋部を透過する際の屈折や反射による送信波や受信波の減衰を極力抑えることができ、便蓋部の開閉姿勢による検知感度の調整を不要とすることができる。上下方向の指向角を広くとっておく方が、使用者の背の高さ等の個人差による影響を極力減らすことができ、また逆に左右方向の指向角を狭くすることで、同じトイレ空間内の便器装置の周囲に配置されるタオル等の非固定物を誤検知することを防止することができる。
また、便蓋部閉止時の便蓋部上面に対して、人体検知装置を配置する本体部の高さが十分に確保されていない場合においても、便蓋部の閉止時において、送受信部の送信方向の少なくとも半分の投影面が便蓋部に遮られることなく確保されているため、高周波の電波を安定して送受信させることができるため、便蓋部の開閉姿勢による検知感度の調整を不要とすることができる。
更に、便蓋部閉止時の便蓋部上面に対して、人体検知装置を配置する本体部の高さが十分に確保されていない場合において、便座部の開放時においても、送受信部の送信方向の少なくとも半分の投影面が便座部に遮られることなく確保されているため、高周波の電波を安定して送受信させることができるため、便座部の開閉姿勢による検知感度の調整を不要とすることができる。
【０００９】
請求項２では、トイレ内に設置され、便器部とその上方に回転自在に枢軸される便座部および便蓋部と、便器装置が備える機能手段を収納する本体部を備えると共に、送信波と人体によって跳ね返された反射波を受信して得られる受信波により生じる検波信号に基づき人体を検知する高周波の電波を利用した人体検知装置を本体部内に備えた便器装置において、前記人体検知装置の電波の送信方向が本体部の外郭部材の内壁面に略垂直となるように、且つ便蓋部開放時に便蓋部上面と対向すると共に、対向する便蓋部上面に対して略垂直となるように、且つ前記人体検知装置の指向角が便器装置に対して左右方向よりも上下方向が広くなるように、且つ送受信部の送信方向の投影面の少なくとも半分以上が、閉止時の便蓋上面より上方に位置するように、人体検知装置の電波の送受信部を配置し、前記便座部に、回転自在に枢軸される左右の枢軸部間をつなぐ壁面を備え、前記人体検知装置の電波の送受信部の送信方向の投影面の少なくとも半分以上が、便座部の閉止時における前記壁面の上端が便座部の開放時において位置する位置より下方に位置するように人体検知装置の電波の送受信部を配置したことを特徴としている。
従って、請求項１の場合と同様な効果だけでなく、本体部の外郭部材の内壁面に対しても略垂直となるように配置しているため、本体部の外郭部材を透過する際の屈折や反射による送信波や受信波の減衰も極力抑えることができ、人体検知装置が備えている本来の検知感度に対する便器装置内部への収納による検知感度の低下を防止することができる。
【００１０】
請求項３では、前記人体検知装置の電波の送受信部の送信方向の投影面が、開放時の便座開口部内に位置するように配置したことを特徴としている。
従って、便座部の中央には開口部を備えており、便座部の開放時において、この開口部内を高周波の電波を通過させれば、便座部に遮られることがなく、便座部の開閉姿勢による検知感度の調整を不要とすることができる。
【００１１】
請求項４では、人体検知装置の送受信部が、水平に並べた一対の送信用パッチアンテナと水平に並べた一対の受信用パッチアンテナとを上下に並べたものであることを特徴とする。この配置によって起こる重ね合わせの効果によって、上下方向の指向角を抑えることなく左右方向の指向性を抑えることができる。
【００１２】
請求項５では、トイレ内に設置され、便器部とその上方に回転自在に枢軸される便座部および便蓋部を備えると共に、送信波と人体によって跳ね返された反射波を受信して得られる受信波により生じる検波信号に基づき人体を検知する高周波の電波を利用した人体検知装置を、開放時の便蓋部より後方に備えた便器装置において、前記人体検知装置の電波の送信方向が、便蓋部開放時に便蓋部上面と対向すると共に、対向する便蓋部上面に対して略垂直となるように、且つ前記人体検知装置の指向角が便器装置に対して左右方向よりも上下方向が広くなるように、人体検知装置の電波の送受信部を配置し、人体検知装置の送受信部は、水平に並べた一対の送信用パッチアンテナと水平に並べた一対の受信用パッチアンテナとを上下に並べたものであることを特徴としている。
従って、高周波の電波の放射出力や受信感度の高い送信方向に対して、開放時の便蓋部上面が略垂直となるように配置しているため、便蓋部を透過する際の屈折や反射による送信波や受信波の減衰を極力抑えることができ、便蓋部の開閉姿勢による検知感度の調整を不要とすることができる。上下方向の指向角を広くとっておく方が、使用者の背の高さ等の個人差による影響を極力減らすことができ、また逆に左右方向の指向角を狭くすることで、同じトイレ空間内の便器装置の周囲に配置されるタオル等の非固定物を誤検知することを防止することができる。
人体検知装置の送受信部が、水平に並べた一対の送信用パッチアンテナと水平に並べた一対の受信用パッチアンテナとを上下に並べたものなので、この配置によって起こる重ね合わせの効果によって、上下方向の指向角を抑えることなく左右方向の指向性を抑えることができる。
【００１３】
請求項６では、トイレ内に設置され、便器部とその上方に回転自在に枢軸される便座部および便蓋部と、便器装置が備える機能手段を収納する本体部を備えると共に、送信波と人体によって跳ね返された反射波を受信して得られる受信波により生じる検波信号に基づき人体を検知する高周波の電波を利用した人体検知装置を本体部内に備えた便器装置において、前記人体検知装置の電波の送信方向が本体部の外郭部材の内壁面に略垂直となるように、且つ便蓋部開放時に便蓋部上面と対向すると共に、対向する便蓋部上面に対して略垂直となるように、且つ前記人体検知装置の指向角が便器装置に対して左右方向よりも上下方向が広くなるように、人体検知装置の電波の送受信部を配置し、人体検知装置の送受信部が、水平に並べた一対の送信用パッチアンテナと水平に並べた一対の受信用パッチアンテナとを上下に並べたものであることを特徴としている。
従って、請求項５の場合と同様な効果だけでなく、本体部の外郭部材の内壁面に対しても略垂直となるように配置しているため、本体部の外郭部材を透過する際の屈折や反射による送信波や受信波の減衰も極力抑えることができ、人体検知装置が備えている本来の検知感度に対する便器装置内部への収納による検知感度の低下を防止することができる。
【００１４】
【発明の実施の形態】
以下、本発明の実施例について、図面に基づいて説明する。
図１は、本発明の第１実施例の便器装置をトイレ内に設置した状態を示す全体図である。便器装置１は大きく分けて、陶器で構成された土台となる便器部２、便器装置の備える用便後の局部を温水で洗浄する局部洗浄や用便後に便器部２内に洗浄水を流す便器洗浄といった各機能を司る各機能生成手段と、前記各機能生成手段を制御する制御手段、および便器装置１の前記各機能の不用意な動作の防止や、使用者が適切に使用するための手段として組み込まれている使用者を検知する人体検知装置３を、内部に収納する本体部４、内部に加熱手段を備えて本体部４に回転自在に枢軸された便座部５、そして便座部５の開口部を閉止状態にて塞ぐ便座部５と同様に本体部４に回転自在に枢軸された便蓋部６から構成されている。
【００１５】
第１実施例に組み込まれている人体検知装置３は、１０．５２５ＧＨｚ近傍の周波数を送信波の中心周波数とする高周波の電波を利用したものであり、図４は、第１実施例に組み込まれている人体検知装置３の送受信のアンテナ面３ａの構成を示す概略図である。アンテナ面３ａには送信アンテナ３ａ１と受信アンテナ３ａ２が各々２つのパッチアンテナで構成されている。送信アンテナ３ａ１から先に記述した１０．５２５ＧＨｚ近傍の周波数の送信波を送信し、送信された前記電波が、人体等に当たって跳ね返ってきた反射波を受信波として受信アンテナ３ａ２で受信するようになっており、さらに図示していないが、裏面に配置されている高周波回路に接続され、高周波回路では、前記送信波の生成と、送信波と受信波とを干渉させて定在波を検波信号として取り出せるようにしている。またさらに、高周波回路側はシールド部材で覆われ、その反対側には前記検波信号を増幅し、増幅信号をもとに人体の有無を複数の領域毎に出力可能に構成された人体検知出力回路が設けられている。
高周波の電波は、本体部４の外郭部材であるＡＢＳ樹脂や、便蓋部６の構成部材であるＰＰを透過することが可能である。このため、特にフィルタ部等を本体部４の外郭に設ける必要がなく、これにより切り欠き部をなくすことができ、本体部４に被水等が起きても内部への浸水することがないようになっている。
【００１６】
図２は、第１実施例の便器装置１の人体検知装置３の組込状態を示す便蓋部６の開放状態における側面図であり、（ａ）は全体図、（ｂ）は部分拡大図である。第１の実施例において人体検知装置３は、便座部５と便蓋部６が回転自在に枢軸されている位置よりも後方、やや上方で、左右方向において略中央に配置されており、本体部４の対向する外郭部材４ａの内壁面とアンテナ面３ａを略平行に配置されている。また、本体部４の外郭部材の人体検知装置３を配置している近傍の領域は、構成している曲線の半径が大きくなっており平面形状に近く、同様に開放状態の便蓋部６の上面の対向する面も、構成している曲線の半径が大きくなっており平面形状に近く、互いに略平行となっている。この構成により、人体検知装置３のアンテナ面３ａは、本体部４の対向する外郭部材４ａの内壁面を介して、開放状態の便蓋部６の上面の対向する面６ａと略平行となるように配置されている。一方、送信波の出力や受信波の感度はアンテナ面３ａに対して、法線方向が最も強く、この方向を送信方向３ｂとすると、本体部４の対向する外郭部材４ａの内壁面と共に、便蓋部６の上面の対向する面６ａに対しても略垂直となっている。
また同時に、便蓋部６は閉止状態からおよそ１００度程度の回転で、開放状態となるため、送信方向３ｂがちょうど便器装置１を使用する人体に向けられ、人体検知に非常に適した方向でもある。
なお、便器装置１の組立や設置上のバラツキで完全な法線方向にすることは難しいが、出力の半値角である指向角のよりも狭い範囲内であれば、十分な性能を確保することはできるが、送信方向３ｂに対して８０％以上の出力を確保することができるため、±１０度程度までとしておくことが望ましい。
【００１７】
先述したように、高周波の電波は本体部４や便蓋部６等の構成部材である樹脂を透過する一方で、誘電率の異なる境界面での反射や、構成部材内を透過する際の屈折が少なからず発生してしまう。これに対して前記のような配置にすることで、本体部４の外郭部材４ａや開放状態の便蓋部６を透過する際において、入射角が垂直なので、垂直方向への反射は発生するが、屈折や反射による不要な方向への分散を抑えることができる。これにより、本体部４内に人体検知装置３を配置したことによる本来人体検知装置３が備えている検知感度の低下を抑えることができ、また、便蓋部６の閉止状態の検知感度に対する開放状態の検知感度の低下を抑えることができ、便蓋部６の開閉姿勢による感度の調整を不要としている。
なお、垂直方向の反射で生じる定在波の影響分については、人体検知出力回路内で補正可能な構成とすることで対応している。
【００１８】
図３は、図２で示した人体検知装置３の配置に関する図で、便座部５の開放状態における側面図である。先述した人体検知装置３の配置と同時に、アンテナ面３ａの送信方向３ｂの２点鎖線で示す投影面が、便座部５の開放状態において、便座部５の中央に設けられた開口部５ａが位置する領域内に位置するように配置させている。
このように配置しているのは、便座部５内に、加熱手段である便座ヒータ５ｂを着座面裏側に貼り付けており、また便座ヒータ５ｂには、着座面全体の均熱化のためにアルミ箔を利用しているため、送信方向に前記アルミ箔が位置した場合、高周波の電波が強く反射されてしまい、人体を検知する際に障害となる可能性が高いためである。また、アルミ箔等を用いていなくても、便座部５の上面を構成している半径は、便蓋部６と比較して全体的に小さく、また大きい部分の面積も小さいため、透過させると屈折や反射による不要な方向への分散を抑えることができず、便座部５の閉止状態の検知感度に対する開放状態の検知感度の低下を招くことになる。このため、避けておくのが望ましく、上記のような配置としている。
【００１９】
図５は、図４で示すアンテナ面３ａの指向性を示す概略図であり、（ａ）は図４の配置においての水平方向、（ｂ）は垂直方向である。図４で示した配置における水平方向については、アンテナ面３ａに送信アンテナ３ａ１も受信アンテナ３ａ２もともに２つのパッチアンテナを水平に並べて配置しており、この配置によって起こる重ね合わせの効果によって、指向角を約４０度程度に押さえている。一方で、便器装置１の人体検知装置３からの前方に立つ人体までの距離は６０cm程度であり、また、便器装置１の横幅は左右２０cm程度であり、この指向角を抑えた方向を左右方向とすることによって、おおよそ便器装置１の横幅までが出力の低下の少ない領域とすることができる。このため、壁際に設置されるタオル等の非固定物近傍では、人体を検知する領域よりも出力が弱くなっており、これらが風等で揺らいだりする動きを誤検知しにくくすることができている。逆に垂直方向に関しては、子供から大人まで便器装置１を利用する人体をカバーするためには、便器部２の上面の高さの４０cm程度から、子供の身長１m程度の高さの範囲はできるだけ出力を均等としておく方がよく、水平方向よりも指向角を広くしておく方が良いため、水平方向のような指向角の抑えは行っていない。
【００２０】
図６は、第２実施例の便器装置７の人体検知装置３の組込状態を示す便蓋部１１の開放状態における側面図であり、（ａ）は全体図、（ｂ）は部分拡大図である。また図７は、第２実施例の便器装置７の人体検知装置３の組込状態を示す便蓋部１１の閉止状態における側面図であり、（ａ）は全体図、（ｂ）は部分拡大図である。また図８は、第２実施例の便器装置７の人体検知装置３の組込状態を示す便座部１０の開放状態における側面図であり、（ａ）は全体図、（ｂ）は部分拡大図である。第２の実施例は、第１の実施例と同様な機能を備えた便器装置７ではあるが、デザイン性の高い後方の背が低いものである。
【００２１】
第２の実施例において人体検知装置３は、便座部１０と便蓋部１１が回転自在に枢軸されている位置の後方で、左右方向において略中央に配置されており、高さ方向は、枢軸されている高さとほぼ同等としている。また、本体部９内への組込状況は第１実施例と同様に、本体部９の対向する外郭部材９ａの内壁面と、アンテナ面３ａは略平行に配置されている。一方、便蓋部１１は開放状態において、枢軸部分近傍の後端部分の上面が、本体部９の前面に回り込むような構成となっており、便蓋部１１の開放状態において、回り込んだ枢軸部分近傍の後端部分の上面１１ａと、これに対向する本体部９の外郭部材９ａの前面形状が、略平行となるように構成している。この便蓋部１１の枢軸部分近傍の後端部分の上面１１ａの左右方向の中央近傍は、構成している曲線の半径が大きく平面形状に近く、同様に略平行に構成されている本体部９の外郭部材９ａの前面形状を構成している曲線の半径も大きく平面形状に近くなっている。これらの構成により、人体検知装置３のアンテナ面３ａは、本体部９の対向する外郭部材９ａの内壁面を介して、開放状態の便蓋部１１の枢軸部分近傍の後端部分の上面１１ａと略平行となるように配置されている。また言い換えると、送信方向３ｂが、本体部９の対向する外郭部材９ａの内壁面と共に、便蓋部１１の枢軸部分近傍の後端部分の上面１１ａの対向する面に対しても、略垂直となっている。
【００２２】
一方、第２の実施例においては、第１実施例で示したような人体検知装置３を配置するのに十分な本体部９の高さがないため、便蓋部１１の閉止状態、便蓋部１１は開放状態で便座部１０は閉止状態、便座部１０の開放状態のすべての開閉姿勢に対して、満足できる配置を得ることができない。
これに対応するため、便蓋部１１の閉止状態においては、図７に示すように、人体検知装置３のアンテナ面３ａの送信方向３ｂの２点鎖線で示す投影面の下方の一部が、便蓋部１１の枢軸部分近傍の後端部分１１ａで覆われるが、前記投影面の上方の少なくとも半分以上のアンテナ面の投影面積Ｓ２が確保されるように構成させている。またもう一方で、便座部１０の左右の枢軸部分間には、ねじれ等に対する補強のために、着座面側にほぼ垂直に枢軸の中心高さ程度の壁面１０ａを設けており、便座部１０の閉止状態においては、図６および図７で示すように、前記投影面の下方の一部が、便座部１０の枢軸部分間の壁面１０ａで覆われるが、便蓋部１１の枢軸部分近傍の後端部分１１ａよりも高さが低いため、この場合においても前記投影面の上方の少なくとも半分以上のアンテナ面の投影面積Ｓ１が確保されている。逆に、便座部１０の開放状態においては、図８で示すように、人体検知装置３のアンテナ面３ａの送信方向の投影面の上方の一部が、便座部１０の左右の枢軸部分間の壁面１０ａおよび着座面の一部で覆われるが、前記投影面の下方の少なくとも半分以上のアンテナ面の投影面積Ｓ３が確保されるように構成させている。
このように構成することで、便蓋部１１の閉止状態と、便蓋部１１は開放状態で便座部１０は閉止状態と、便座部１０の開放状態の３つの開閉姿勢に対して、互いに一部を犠牲にしながら、いずれの状態においても人体検知に必要なアンテナ面積を確保できるようにし、便蓋部１１および便座部１０の開閉姿勢による感度の調整を不要としている。
【００２３】
本発明の便器装置は便器部と一体に構成されるもので記載しているが、便器部と別体となったものでも良く、特に便器装置を限定するものではない。
同様に、便座部や便蓋部が別体となったものについても、組み付けられる便蓋部の閉止状態から開放状態までの回転角がおよそ１１０度程度であることや、便座部の開口部の位置をあらかじめ考慮して、本体部の外郭部材の前面を傾斜させたり、人体検知装置を配置しておけば、十分同様な効果を得ることもできる。
【００２４】
また、本発明の実施例では、物体検知手段は１０．５２５ＧＨｚ近傍の周波数を送信波の中心周波数とする電波で検知するもので記載したが、マイクロ波やミリ波と称される高周波の電波であれば、特に使用する周波数を限定するものではない。
また、本発明ではパッチアンテナを用いているが、導波管等を用いた柱状アンテナでも構成可能で、アンテナ面を導波管の開口面や、導波管の前方に設けるホーンの開口面に置き換えることで同様の構成とすることができ、本発明と同様の効果を得ることもできる。
【図面の簡単な説明】
【図１】第１実施例の便器装置をトイレ内に設置した状態を示す全体図である。
【図２】第１実施例の便器装置１の人体検知装置３の組込状態を示す便蓋部６の開放状態における側面図であり、（ａ）は全体図、（ｂ）は部分拡大図である。
【図３】第１実施例の便器装置１の人体検知装置３の組込状態を示す便座部５の開放状態における側面図である。
【図４】第１実施例に組み込まれている人体検知装置３の送受信のアンテナ面３ａの構成を示す概略図である。
【図５】図４で示すアンテナ面３ａの指向性を示す概略図であり、（ａ）は図４の配置においての水平方向、（ｂ）は垂直方向である。
【図６】第２実施例の便器装置７の人体検知装置３の組込状態を示す便蓋部１１の開放状態における側面図であり、（ａ）は全体図、（ｂ）は部分拡大図である。
【図７】第２実施例の便器装置７の人体検知装置３の組込状態を示す便蓋部１１の閉止状態における側面図であり、（ａ）は全体図、（ｂ）は部分拡大図である。
【図８】第２実施例の便器装置７の人体検知装置３の組込状態を示す便座部１０の開放状態における側面図であり、（ａ）は全体図、（ｂ）は部分拡大図である。
【符号の説明】
１，７… 便器装置，２、８ … 便器部，
３ … 人体検知装置，３ａ … アンテナ面，
３ａ１ … 送信アンテナ，３ａ２ … 受信アンテナ，
３ｂ … 送信方向、，３ｃ … シールド部材，
４、９ … 本体部，４ａ、９ａ … 外郭部材，
５、１０ … 便座部，５ａ … 開口部，５ｂ … 便座ヒータ，
１０ａ … 壁面，
６、１１ … 便蓋部，６ａ … 上面の対向する面，
１１ａ … 枢軸部分近傍の後端部分の上面，
Ｓ１ … 便蓋部閉止時のアンテナ面の投影面積，
Ｓ２ … 便蓋部開放時のアンテナ面の投影面積，
Ｓ３ … 便座部開放時のアンテナ面の投影面積[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a toilet device equipped with a human body detection device using high-frequency radio waves, and in particular, to detect a human body reliably without being affected by the position and posture of a movable part such as a toilet seat or toilet lid. The present invention relates to a toilet device including a suitable human body detection device.
[0002]
[Prior art]
Conventional human body detection devices that use high-frequency radio waves include the Doppler type that detects the difference between the frequency of the transmitted wave and the received wave to detect movement, and the distance based on the delay time at the time of transmission by receiving a pulse wave. Radar type detectors that detect movement and movement have been proposed.
[0003]
[Problems to be solved by the invention]
Conventionally, many human body detection devices using toilets have used infrared rays. In this case, a filter or a lens that transmits infrared rays and prevents disturbance light such as visible light is exposed to the external portion. In addition, it is necessary to dispose the movable part such as the toilet seat and toilet lid between the human body and the detection unit so that they are not positioned, which may restrict the appearance of the toilet seat device and prevent false detection. Therefore, another member for detecting the posture of the toilet seat or the toilet lid is often provided to control the driving of the human body detection device.
In comparison, human body detection devices that use high-frequency radio waves can pass through materials such as resin and earthenware that are often used as outer members of toilet devices, so that they can be concealed and the design of toilet devices is improved. There is an advantage that the degree of freedom of arrangement of the human body detection device is high.
[0004]
In the case of a Doppler type that is widely used in the past as a human body detection device using high-frequency radio waves, it is configured to detect movement based on the difference between the frequency of the transmitted wave and the frequency of the received wave, and the difference signal It is configured so that the outline of the distance can be determined based on the magnitude of the amplitude. Moreover, in order to cancel the influence of standing waves such as internal reflection caused by being incorporated in the toilet device, the low frequency component is cut.
However, in a toilet device equipped with a movable part such as a toilet seat or a toilet lid, even though the constituent members transmit high-frequency radio waves, some of them are reflected at the boundary surface depending on the incident angle and When passing through, a phenomenon called refraction also occurs, and the transmitted wave and the received wave are attenuated, which is influenced by the posture of the toilet seat part and the toilet lid part.
[0005]
On the other hand, in order to avoid being affected by the posture of the toilet seat and toilet lid, as in the case of using conventional infrared rays, it is necessary to consider the arrangement and to detect the posture of the toilet seat and toilet lid. A member is provided to control driving or ignore a signal, and the characteristic that the member can be transmitted is not sufficiently utilized.
[0006]
Also, in the case of radar type, it is possible to detect the movement by the overlapping part with the received wave by transmitting the pulse wave and the distance by the delay time, but the moving speed of the high frequency radio wave is the speed of light (about 3 × 10⁸m / s), it is necessary to measure several nanoseconds at short distances within a few meters, and there is a control problem such as the need for a CPU at the GHz level. It is not used, nor is it used for anything that is used to drive or enable each function of a control device to be incorporated.
[0007]
The present invention has been made to solve the above-described problems, and an object of the present invention is to be hardly affected by movable parts such as a toilet seat part and a toilet lid part, and stably detect a human body in a plurality of regions. An object of the present invention is to provide a toilet device provided with a human body detection device using high-frequency radio waves suitable for this purpose.
[0008]
[Means for solving the problems and actions / effects]
In order to achieve the above object, the first aspect of the present invention includes a toilet seat, a toilet seat portion and a toilet lid portion that are pivotably pivoted above the toilet portion, and a transmitted wave and a reflected wave rebounded by a human body. In a toilet device provided with a human body detection device using a high-frequency radio wave that detects a human body based on a detection signal generated by a received wave obtained by receiving a radio wave behind the toilet lid when opened, the radio wave of the human body detection device The transmission direction of the human body detection device is opposed to the upper surface of the toilet lid portion when the toilet lid portion is opened and is substantially perpendicular to the upper surface of the opposed toilet lid portion, and the directivity angle of the human body detection device is So that the vertical direction is wider than the direction.And at least half or more of the projection surface in the transmission direction of the transmission / reception unit is located above the upper surface of the toilet lid when closed,The radio wave transmitter / receiver of the human body detector is placed.The toilet seat includes a wall surface that connects between the left and right pivots pivotally rotatable, and at least half of the projection surface in the transmission direction of the radio wave transmission / reception unit of the human body detection device is at a time when the toilet seat is closed. The radio wave transmission / reception unit of the human body detection device is arranged so that the upper end of the wall surface is located below the position where the toilet seat is opened.It is characterized by that.
Therefore, since the upper surface of the toilet lid when opened is substantially perpendicular to the transmission direction of high-frequency radio wave radiation output and high reception sensitivity, it is refracted and reflected when passing through the toilet lid. As a result, the attenuation of the transmission wave and the reception wave due to can be suppressed as much as possible, and the adjustment of the detection sensitivity by the opening / closing posture of the toilet lid portion can be made unnecessary. The wide vertical direction angle can reduce the influence of individual differences such as the height of the user as much as possible, and conversely, by narrowing the horizontal direction angle, the same toilet space It is possible to prevent erroneous detection of non-fixed objects such as towels arranged around the toilet device inside.
In addition, even when the height of the body part on which the human body detection device is arranged is not sufficiently secured with respect to the upper surface of the toilet lid part when the toilet lid part is closed, the transmission / reception unit transmits the signal when the toilet lid part is closed. Since at least half of the projection plane in the direction is secured without being blocked by the toilet lid, it is possible to transmit and receive high-frequency radio waves stably, eliminating the need to adjust the detection sensitivity by opening and closing the toilet lid. can do.
Further, when the height of the main body part where the human body detection device is arranged is not sufficiently secured with respect to the upper surface of the toilet lid part when the toilet lid part is closed, the transmission direction of the transmission / reception part even when the toilet seat part is opened Because at least half of the projection plane is secured without being obstructed by the toilet seat, high-frequency radio waves can be transmitted and received stably, making it unnecessary to adjust the detection sensitivity by opening and closing the toilet seat. it can.
[0009]
According to a second aspect of the present invention, a toilet seat, a toilet seat and a toilet lid, which are installed in a toilet and are pivotally pivoted upward, and a main body that houses functional means of the toilet device, a transmission wave and a human body are provided. In a toilet apparatus equipped with a human body detection device using a high frequency radio wave for detecting a human body based on a detection signal generated by a reception wave obtained by receiving a reflected wave bounced back by the body, the radio wave of the human body detection device The transmission direction is substantially perpendicular to the inner wall surface of the outer shell member of the main body, and is opposed to the upper surface of the toilet lid when the toilet lid is opened, and is substantially perpendicular to the opposed upper surface of the toilet lid. And the orientation angle of the human body detection device is wider in the vertical direction than the horizontal direction with respect to the toilet device,In addition, the radio wave transmitting / receiving unit of the human body detecting device is disposed so that at least half or more of the projection surface in the transmission direction of the transmitting / receiving unit is located above the toilet lid upper surface at the time of closing, and the toilet seat unit is pivotally pivotable. And at least half of the projection surface in the transmission direction of the radio wave transmission / reception unit of the human body detection device is when the toilet seat is open when the toilet seat is closed. The radio wave transmission / reception unit of the human body detection device is arranged so as to be located below the position located at the point.
Accordingly, not only the same effects as in the case of claim 1 but also the arrangement is made so as to be substantially perpendicular to the inner wall surface of the outer shell member of the main body portion, so that the refraction at the time of transmitting through the outer shell member of the main body portion. In addition, attenuation of transmitted waves and received waves due to reflection and reflection can be suppressed as much as possible, and a reduction in detection sensitivity due to housing in the toilet device relative to the original detection sensitivity of the human body detection device can be prevented.
[0010]
According to a third aspect of the present invention, the projection surface in the transmission direction of the radio wave transmission / reception unit of the human body detection device is disposed so as to be positioned in the toilet seat opening when opened.
Therefore, an opening is provided in the center of the toilet seat, and when the toilet seat is opened, if high-frequency radio waves are passed through the opening, the toilet seat is not obstructed and depends on the opening / closing posture of the toilet seat. Adjustment of detection sensitivity can be made unnecessary.
[0011]
In claim 4,The transmission / reception unit of the human body detection device is characterized in that a pair of transmission patch antennas arranged horizontally and a pair of reception patch antennas arranged horizontally are arranged vertically. Due to the superposition effect caused by this arrangement, the directivity in the left-right direction can be suppressed without suppressing the directivity angle in the vertical direction.
[0012]
In claim 5,A detection signal generated by a reception wave obtained by receiving a transmission wave and a reflected wave bounced back by a human body, and being provided with a toilet seat part and a toilet lid part that are installed in a toilet and pivotally pivoted upwardly. In the toilet apparatus provided with a human body detection device using high-frequency radio waves for detecting a human body based on the back of the toilet lid when opened, the radio wave transmission direction of the human body detection device is such that the toilet lid is opened when the toilet lid is opened. The human body so as to face the upper surface of the unit and to be substantially perpendicular to the upper surface of the facing toilet lid part, and so that the orientation angle of the human body detecting device is wider in the vertical direction than in the horizontal direction with respect to the toilet device. The radio wave transmission / reception unit of the detection device is arranged, and the transmission / reception unit of the human body detection device has a pair of horizontally arranged patch antennas for transmission and a pair of horizontally arranged patch antennas for reception. The It is a symptom.
Therefore, since the upper surface of the toilet lid when opened is substantially perpendicular to the transmission direction of high-frequency radio wave radiation output and high reception sensitivity, it is refracted and reflected when passing through the toilet lid. As a result, the attenuation of the transmission wave and the reception wave due to can be suppressed as much as possible, and the adjustment of the detection sensitivity by the opening / closing posture of the toilet lid portion can be made unnecessary. The wide vertical direction angle can reduce the influence of individual differences such as the height of the user as much as possible, and conversely, by narrowing the horizontal direction angle, the same toilet space It is possible to prevent erroneous detection of non-fixed objects such as towels arranged around the toilet device inside.
Since the transmission / reception unit of the human body detection device has a pair of horizontally arranged patch antennas for transmission and a pair of horizontally arranged patch antennas for reception, the effect of superposition caused by this arrangement causes the vertical direction The directivity in the left-right direction can be suppressed without reducing the directivity angle.
[0013]
In claim 6,A toilet seat, a toilet seat and a toilet lid that are pivotally pivoted upwardly, and a main body that houses functional means included in the toilet device, and a reflection wave rebounded by a transmission wave and a human body. In a toilet apparatus provided with a human body detection device using a high-frequency radio wave that detects a human body based on a detection signal generated by a received wave obtained by receiving a wave in the main body unit, the transmission direction of the radio wave of the human body detection device is the main body unit The human body detecting device so as to be substantially perpendicular to the inner wall surface of the outer shell member, to face the upper surface of the toilet lid when the toilet lid is opened, and to be substantially perpendicular to the upper surface of the opposite toilet lid The radio wave transmission / reception unit of the human body detection device is arranged so that the directivity angle is wider in the vertical direction than the horizontal direction with respect to the toilet device,The transmission / reception unit of the human body detection device is characterized in that a pair of transmission patch antennas arranged horizontally and a pair of reception patch antennas arranged horizontally are arranged vertically.
Therefore, not only the same effect as in the case of claim 5 but also the arrangement is made so as to be substantially perpendicular to the inner wall surface of the outer shell member of the main body portion, so that the refraction at the time of transmitting through the outer shell member of the main body portion. In addition, attenuation of transmitted waves and received waves due to reflection and reflection can be suppressed as much as possible, and a reduction in detection sensitivity due to housing in the toilet device relative to the original detection sensitivity of the human body detection device can be prevented.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is an overall view showing a state in which the toilet device of the first embodiment of the present invention is installed in a toilet. The toilet device 1 is roughly divided into a toilet unit 2 that is a base made of ceramics, a local cleaning unit that cleans a local part of a toilet device provided in the toilet device with hot water, and a flushing unit that allows flush water to flow into the toilet unit 2 after a toilet. Each function generating means for controlling each function such as washing, control means for controlling each function generating means, and prevention of inadvertent operation of each function of the toilet device 1 and means for appropriate use by the user Of a human body detecting device 3 for detecting a user incorporated as a body part 4 accommodated therein, a toilet seat part 5 provided with a heating means inside and pivotally pivoted to the body part 4, and a toilet seat part 5 Like the toilet seat part 5 which closes an opening part in a closed state, it is comprised from the toilet lid part 6 pivoted by the main-body part 4 so that rotation was possible.
[0015]
The human body detection device 3 incorporated in the first embodiment uses high-frequency radio waves having a frequency in the vicinity of 10.525 GHz as the center frequency of the transmission wave, and FIG. 4 is incorporated in the first embodiment. It is the schematic which shows the structure of the antenna surface 3a of transmission / reception of the human body detection apparatus 3 which is. On the antenna surface 3a, a transmitting antenna 3a1 and a receiving antenna 3a2 are each composed of two patch antennas. A transmission wave having a frequency in the vicinity of 10.525 GHz described above is transmitted from the transmission antenna 3a1, and the transmitted wave is received by the reception antenna 3a2 as a reception wave, which is a reflected wave bounced off against a human body or the like. Although not shown in the figure, it is connected to a high-frequency circuit arranged on the back surface, and the high-frequency circuit can extract a standing wave as a detection signal by causing the generation of the transmission wave and the interference between the transmission wave and the reception wave. I am doing so. Furthermore, the high frequency circuit side is covered with a shield member, and the detection signal is amplified on the opposite side, and the presence / absence of a human body can be output for each of a plurality of regions based on the amplified signal. Is provided.
High frequency radio waves can pass through ABS resin, which is an outer member of the main body 4, and PP, which is a constituent member of the toilet lid 6. For this reason, it is not particularly necessary to provide a filter portion or the like on the outer shell of the main body portion 4, thereby eliminating the cutout portion and preventing the main body portion 4 from being submerged even if the main body portion 4 gets wet. It has become.
[0016]
FIG. 2 is a side view of the toilet lid 6 in the opened state showing the assembled state of the human body detecting device 3 of the toilet device 1 of the first embodiment, (a) is an overall view, and (b) is a partially enlarged view. It is. In the first embodiment, the human body detection device 3 is disposed at a substantially central position in the left-right direction behind and slightly above the position where the toilet seat 5 and the toilet lid 6 are pivotally pivoted. The inner wall surface of the four opposing outer shell members 4a and the antenna surface 3a are arranged substantially in parallel. Further, the area in the vicinity of the outer shell member of the main body 4 where the human body detecting device 3 is arranged has a large radius of the curve formed, and is close to a planar shape. The opposing surfaces of the upper surface also have a large radius of curved lines, are close to a planar shape, and are substantially parallel to each other. With this configuration, the antenna surface 3a of the human body detection device 3 is substantially parallel to the opposing surface 6a of the upper surface of the toilet lid portion 6 in the open state via the inner wall surface of the opposing outer member 4a of the main body portion 4. Is arranged. On the other hand, the sensitivity of the output of the transmission wave and the sensitivity of the reception wave is strongest in the normal direction with respect to the antenna surface 3a. If this direction is the transmission direction 3b, the inner wall surface of the outer shell member 4a facing the main body 4 and The upper surface of the lid 6 is also substantially perpendicular to the opposing surface 6a.
At the same time, since the toilet lid 6 is rotated about 100 degrees from the closed state to the open state, the transmission direction 3b is directed toward the human body using the toilet device 1, and the direction is very suitable for human body detection. is there.
In addition, although it is difficult to make the complete normal direction due to variations in assembly and installation of the toilet device 1, sufficient performance is ensured if it is within a narrower range of the directivity angle that is the half-value angle of the output. However, since it is possible to secure an output of 80% or more with respect to the transmission direction 3b, it is desirable that the angle be set to about ± 10 degrees.
[0017]
As described above, high-frequency radio waves pass through the resin, which is a constituent member such as the main body part 4 and the toilet lid part 6, while being reflected at the boundary surfaces having different dielectric constants and being refracted when passing through the constituent members. Will not occur. On the other hand, with the arrangement as described above, when the light passes through the outer member 4a of the main body 4 and the toilet lid 6 in the open state, the incident angle is vertical, so that reflection in the vertical direction occurs. In addition, dispersion in an unnecessary direction due to refraction or reflection can be suppressed. Thereby, the fall of the detection sensitivity with which the human body detection apparatus 3 was originally provided by having arrange | positioned the human body detection apparatus 3 in the main-body part 4 can be suppressed, and the opening with respect to the detection sensitivity of the closed state of the toilet lid part 6 can be suppressed. A decrease in detection sensitivity of the state can be suppressed, and the adjustment of sensitivity according to the opening / closing posture of the toilet lid 6 is unnecessary.
Note that the influence of the standing wave caused by the reflection in the vertical direction is dealt with by adopting a configuration that can be corrected in the human body detection output circuit.
[0018]
FIG. 3 is a diagram relating to the arrangement of the human body detection device 3 shown in FIG. 2, and is a side view of the toilet seat 5 in the opened state. Simultaneously with the arrangement of the human body detection device 3 described above, the projection surface indicated by the two-dot chain line in the transmission direction 3b of the antenna surface 3a is positioned in the center of the toilet seat portion 5 when the toilet seat portion 5 is in the open state. It is arranged so that it is located in the area to be.
The toilet seat heater 5b, which is a heating means, is affixed to the back side of the seating surface in the toilet seat portion 5, and the toilet seat heater 5b is provided with a uniform temperature for the entire seating surface. Since the aluminum foil is used, when the aluminum foil is positioned in the transmission direction, high-frequency radio waves are strongly reflected, which is likely to be an obstacle when detecting a human body. Even if aluminum foil or the like is not used, the radius constituting the upper surface of the toilet seat portion 5 is generally smaller than that of the toilet lid portion 6 and the area of the large portion is small. Dispersion in an unnecessary direction due to refraction or reflection cannot be suppressed, and the detection sensitivity in the open state with respect to the detection sensitivity in the closed state of the toilet seat 5 is reduced. For this reason, it is desirable to avoid this, and the arrangement is as described above.
[0019]
5A and 5B are schematic views showing the directivity of the antenna surface 3a shown in FIG. 4, where FIG. 5A is the horizontal direction in the arrangement of FIG. 4 and FIG. 5B is the vertical direction. With respect to the horizontal direction in the arrangement shown in FIG. 4, both the transmitting antenna 3a1 and the receiving antenna 3a2 are arranged horizontally on the antenna surface 3a, and the directivity angle is obtained by the effect of superposition caused by this arrangement. Is held at about 40 degrees. On the other hand, the distance from the human body detection device 3 of the toilet device 1 to the human body standing in front is about 60 cm, and the lateral width of the toilet device 1 is about 20 cm on the left and right. By doing so, the width of the toilet device 1 can be set to a region where the output is hardly reduced. For this reason, in the vicinity of non-fixed objects such as towels installed near the wall, the output is weaker than the area where human bodies are detected, and it is possible to make it difficult for false detection of movements that fluctuate due to wind etc. Yes. On the other hand, in the vertical direction, in order to cover the human body using the toilet device 1 from children to adults, the height range from about 40 cm on the upper surface of the toilet unit 2 to about 1 m in height is possible. Since it is better to keep the output uniform and it is better to make the directivity angle wider than the horizontal direction, the directivity angle is not suppressed as in the horizontal direction.
[0020]
FIG. 6 is a side view of the toilet lid 11 in the opened state showing the assembled state of the human body detecting device 3 of the toilet device 7 of the second embodiment, where (a) is an overall view and (b) is a partially enlarged view. It is. Moreover, FIG. 7 is a side view in the closed state of the toilet lid part 11 which shows the assembly state of the human body detection apparatus 3 of the toilet device 7 of 2nd Example, (a) is a general view, (b) is a partially expanded figure. FIG. Moreover, FIG. 8 is a side view in the open state of the toilet seat part 10 which shows the assembly state of the human body detection apparatus 3 of the toilet device 7 of 2nd Example, (a) is a general view, (b) is a partial enlarged view. It is. The second embodiment is a toilet device 7 having the same function as that of the first embodiment, but has a high design and a short back.
[0021]
In the second embodiment, the human body detection device 3 is disposed at a substantially central position in the left-right direction behind the position where the toilet seat 10 and the toilet lid 11 are pivoted in a rotatable manner. It is almost equivalent to the height that has been. As for the state of incorporation into the main body 9, the inner wall surface of the outer shell member 9a facing the main body 9 and the antenna surface 3a are arranged substantially parallel to each other as in the first embodiment. On the other hand, the toilet lid portion 11 is configured such that the upper surface of the rear end portion in the vicinity of the pivot portion wraps around the front surface of the main body portion 9 when the toilet lid portion 11 is open. The upper surface 11a of the rear end portion in the vicinity of the portion and the front surface shape of the outer member 9a of the main body portion 9 facing the upper surface 11a are configured to be substantially parallel. In the vicinity of the center in the left-right direction of the upper surface 11a of the rear end portion in the vicinity of the pivot portion of the toilet lid portion 11, the radius of the curved line is large and close to a planar shape, and the main body portion 9 is also configured substantially in parallel. The radius of the curve constituting the front shape of the outer shell member 9a is also large and close to a planar shape. With these configurations, the antenna surface 3a of the human body detection device 3 is connected to the upper surface 11a of the rear end portion in the vicinity of the pivot portion of the toilet lid portion 11 in the opened state via the inner wall surface of the outer shell member 9a facing the main body portion 9. It arrange | positions so that it may become substantially parallel. In other words, the transmission direction 3b is substantially perpendicular to the opposing surface of the upper surface 11a of the rear end portion in the vicinity of the pivot portion of the toilet lid portion 11 as well as the inner wall surface of the outer shell member 9a facing the main body portion 9. It has become.
[0022]
On the other hand, in the second embodiment, since the main body 9 is not high enough to place the human body detecting device 3 as shown in the first embodiment, the toilet lid 11 is closed, It is impossible to obtain a satisfactory arrangement for all the opening / closing postures of the portion 11 in the open state, the toilet seat portion 10 in the closed state, and the toilet seat portion 10 in the open state.
To cope with this, in the closed state of the toilet lid portion 11, as shown in FIG. 7, a part below the projection plane indicated by a two-dot chain line in the transmission direction 3b of the antenna surface 3a of the human body detection device 3 is Although it is covered with the rear end portion 11a in the vicinity of the pivot portion of the toilet lid 11, the projected area S2 of the antenna surface at least half or more above the projection surface is secured. On the other hand, between the left and right pivot portions of the toilet seat portion 10, a wall surface 10 a having a central height of the pivot shaft is provided substantially vertically on the seating surface side for reinforcement against torsion and the like. In the closed state, as shown in FIGS. 6 and 7, a part of the projection surface below is covered with a wall surface 10 a between the pivot portions of the toilet seat 10, but in the vicinity of the pivot portion of the toilet lid 11. Since the height is lower than the end portion 11a, the projected area S1 of the antenna surface at least half or more above the projected surface is secured in this case as well. On the contrary, in the opened state of the toilet seat 10, as shown in FIG. 8, a part of the antenna surface 3 a of the human body detection device 3 above the projection surface in the transmission direction is between the left and right pivot parts of the toilet seat 10. Although it is covered with a part of the wall surface 10a and the seating surface, the projected area S3 of the antenna surface at least half or more below the projection surface is ensured.
With this configuration, there are three open / closed postures for the closed state of the toilet lid 11, the toilet lid 11 is open, the toilet seat 10 is closed, and the toilet seat 10 is open. The antenna area necessary for human body detection can be ensured in any state while sacrificing the portion, and the sensitivity adjustment by the opening / closing posture of the toilet lid portion 11 and the toilet seat portion 10 is unnecessary.
[0023]
Although the toilet device of the present invention is described as being configured integrally with the toilet unit, the toilet device may be separated from the toilet unit, and the toilet device is not particularly limited.
Similarly, in the case where the toilet seat part and the toilet lid part are separated, the rotation angle from the closed state to the opened state of the toilet lid part to be assembled is about 110 degrees, and the opening of the toilet seat part is If the position is taken into consideration in advance and the front surface of the outer shell member of the main body is inclined or a human body detection device is arranged, a sufficiently similar effect can be obtained.
[0024]
In the embodiment of the present invention, the object detection means is described as detecting with a radio wave having a frequency in the vicinity of 10.525 GHz as the center frequency of the transmission wave. However, the object detection means is a high frequency radio wave called a microwave or a millimeter wave. If there is, the frequency to be used is not particularly limited.
In addition, although the patch antenna is used in the present invention, a columnar antenna using a waveguide or the like can also be configured, and the antenna surface may be an opening surface of the waveguide or an opening surface of a horn provided in front of the waveguide. By replacing, it can be set as the same structure, and the effect similar to this invention can also be acquired.
[Brief description of the drawings]
FIG. 1 is an overall view showing a state in which a toilet device of a first embodiment is installed in a toilet.
FIGS. 2A and 2B are side views in an opened state of a toilet lid portion 6 showing an assembled state of the human body detecting device 3 of the toilet device 1 of the first embodiment, wherein FIG. 2A is an overall view, and FIG. 2B is a partially enlarged view; It is.
FIG. 3 is a side view of the toilet seat portion 5 in an opened state showing an assembled state of the human body detection device 3 of the toilet device 1 of the first embodiment.
FIG. 4 is a schematic diagram showing a configuration of a transmission / reception antenna surface 3a of the human body detection device 3 incorporated in the first embodiment.
5A and 5B are schematic views showing the directivity of the antenna surface 3a shown in FIG. 4, where FIG. 5A is the horizontal direction in the arrangement of FIG. 4 and FIG. 5B is the vertical direction.
FIGS. 6A and 6B are side views of the toilet lid 11 in the opened state showing the assembled state of the human body detecting device 3 of the toilet device 7 of the second embodiment, where FIG. 6A is an overall view and FIG. 6B is a partially enlarged view. It is.
FIGS. 7A and 7B are side views in a closed state of the toilet lid portion 11 showing an assembled state of the human body detecting device 3 of the toilet device 7 of the second embodiment, wherein FIG. 7A is an overall view, and FIG. 7B is a partially enlarged view. It is.
FIGS. 8A and 8B are side views of the toilet seat portion 10 in the opened state showing the assembled state of the human body detecting device 3 of the toilet device 7 of the second embodiment, where FIG. 8A is an overall view and FIG. 8B is a partially enlarged view; is there.
[Explanation of symbols]
1, 7 ... toilet device, 2, 8 ... toilet part,
3 ... human body detection device, 3a ... antenna surface,
3a1 ... transmitting antenna, 3a2 ... receiving antenna,
3b: Transmission direction, 3c: Shield member,
4, 9 ... main body, 4a, 9a ... outer member,
5, 10 ... Toilet seat part, 5a ... Opening part, 5b ... Toilet seat heater,
10a ... wall surface,
6, 11 ... Toilet lid part, 6a ...
11a: the upper surface of the rear end portion in the vicinity of the pivot portion,
S1 ... Projected area of the antenna surface when the toilet lid is closed,
S2 ... projected area of the antenna surface when the toilet lid is opened,
S3 ... Projected area of antenna surface when toilet seat is open

Claims

A detection signal generated by a reception wave obtained by receiving a transmission wave and a reflected wave bounced back by a human body, and being provided in a toilet and having a toilet seat and a toilet lid that are pivotably pivoted upwardly. In the toilet apparatus provided with a human body detection device using high-frequency radio waves for detecting a human body based on the back of the toilet lid when opened, the radio wave transmission direction of the human body detection device is such that the toilet lid is opened when the toilet lid is opened. Opposite to the upper surface of the unit, so as to be substantially perpendicular to the upper surface of the opposing toilet lid, and so that the orientation angle of the human body detection device is wider in the vertical direction than in the horizontal direction with respect to the toilet device, and The radio wave transmission / reception unit of the human body detection device is arranged so that at least half of the projection surface in the transmission direction of the transmission / reception unit is located above the toilet lid upper surface when closed , and is pivotally pivoted on the toilet seat unit. Left and right A position having a wall surface connecting the shaft portions, and at least half of the projection surface in the transmission direction of the radio wave transmission / reception unit of the human body detection device is located at the upper end of the wall surface when the toilet seat portion is closed when the toilet seat portion is opened A toilet device in which a radio wave transmission / reception unit of a human body detection device is arranged so as to be positioned further downward .

A toilet seat, a toilet seat and a toilet lid that are pivotally pivoted upwardly, and a main body that houses a functional means included in the toilet device, and a reflected wave rebounded by a transmission wave and a human body In a toilet apparatus provided with a human body detection device using a high-frequency radio wave that detects a human body based on a detection signal generated by a received wave obtained by receiving a wave in the main body unit, the transmission direction of the radio wave of the human body detection device is the main body unit The human body detecting device so as to be substantially perpendicular to the inner wall surface of the outer shell member, to face the upper surface of the toilet lid when the toilet lid is opened, and to be substantially perpendicular to the upper surface of the opposite toilet lid So that the vertical angle is wider than the left-right direction with respect to the toilet device, and at least half of the projection surface in the transmission direction of the transmission / reception unit is positioned above the upper surface of the toilet lid when closed. Man Place the radio wave transmission and reception of the detection device, the toilet seat includes a wall connecting the left and right pivot portion rotatably pivot, at least the projection surface of the transmitting direction of the radio wave transmitting and receiving portion of the human body detecting device A toilet apparatus in which the radio wave transmission / reception unit of the human body detection device is arranged such that the upper end of the wall surface when the toilet seat is closed is located below the position where the upper end of the wall is when the toilet seat is opened. .

The toilet device according to claim 1 or 2, wherein a projection plane in a transmission direction of a radio wave transmission / reception unit of the human body detection device is disposed in a toilet seat opening when opened.

Transceiver of the human body sensing device, any claim 1 to 3, characterized in that by arranging a pair of receiving patch antenna arranged and horizontally a pair of transmit patch antennas arranged horizontally in a vertical The toilet device according to claim 1.

A detection signal generated by a reception wave obtained by receiving a transmission wave and a reflected wave bounced back by a human body, and being provided with a toilet seat part and a toilet lid part that are installed in a toilet and pivotally pivoted upwardly. In the toilet apparatus provided with a human body detection device using high-frequency radio waves for detecting a human body based on the back of the toilet lid when opened, the radio wave transmission direction of the human body detection device is such that the toilet lid is opened when the toilet lid is opened. The human body so as to face the upper surface of the unit and to be substantially perpendicular to the upper surface of the facing toilet lid unit, and so that the orientation angle of the human body detection device is wider in the vertical direction than in the horizontal direction with respect to the toilet device. The radio wave transmission / reception unit of the detection device is arranged, and the transmission / reception unit of the human body detection device has a pair of horizontally arranged patch antennas for transmission and a pair of horizontally arranged patch antennas for reception. The Toilet apparatus according to symptoms.

A toilet seat, a toilet seat and a toilet lid that are pivotally pivoted upwardly, and a main body that houses a functional means included in the toilet device, and a reflected wave rebounded by a transmission wave and a human body In a toilet apparatus provided with a human body detection device using a high-frequency radio wave that detects a human body based on a detection signal generated by a received wave obtained by receiving a wave in the main body unit, the transmission direction of the radio wave of the human body detection device is the main body unit The human body detecting device so as to be substantially perpendicular to the inner wall surface of the outer shell member, to face the upper surface of the toilet lid when the toilet lid is opened, and to be substantially perpendicular to the upper surface of the opposite toilet lid the so oriented angle is vertically wider than the horizontal direction with respect to toilet apparatus, placing the radio wave transceiver of the human body detection device, the transceiver of the human body detection device, Patchian for transmission a pair of horizontally aligned Toilet apparatus, characterized in that it is obtained by arranging a pair of receiving patch antenna aligned Na and horizontally up and down.