JP2001343468A - Human-body detecting sensor - Google Patents

Human-body detecting sensor

Info

Publication number
JP2001343468A
JP2001343468A JP2000162449A JP2000162449A JP2001343468A JP 2001343468 A JP2001343468 A JP 2001343468A JP 2000162449 A JP2000162449 A JP 2000162449A JP 2000162449 A JP2000162449 A JP 2000162449A JP 2001343468 A JP2001343468 A JP 2001343468A
Authority
JP
Japan
Prior art keywords
sensor
human body
light
polarizing plate
human
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
JP2000162449A
Other languages
Japanese (ja)
Inventor
Katsuhiko Nagano
勝彦 長野
Tatsuhiro Kuga
達弘 久我
Takeshi Tsurushima
毅 鶴島
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.)
Toto Ltd
Original Assignee
Toto 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 Toto Ltd filed Critical Toto Ltd
Priority to JP2000162449A priority Critical patent/JP2001343468A/en
Publication of JP2001343468A publication Critical patent/JP2001343468A/en
Pending legal-status Critical Current

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  • Geophysics And Detection Of Objects (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a human-body detecting sensor wherein a means used to change the light projecting and receiving direction of the sensor is realized in a space saving manner, a sensor case can be miniaturized, the cost of the sensor can be reduced by deleting the mounting member of the sensor and the sensor can be housed easily into a toilet cleaing device cover. SOLUTION: A polarizing plate, which uses diffraction of a light beam is arranged at the front of the projection element or the light-receiving element of the human-body detecting sensor. The sensor is arranged in its front part.

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】本発明は便器洗浄装置等の給
水装置で用いられる人体感知センサーに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body sensor used in a water supply device such as a toilet flushing device.

【0002】[0002]

【従来の技術】従来、例えば便器洗浄装置の赤外線を用
いた人体感知センサーは、人体感知センサーを設置した
部屋の対向する壁面を感知しづらく、かつ人体を感知し
やすくするために、センサーの投光素子・受光素子から
発するビーム方向を水平に投受光しないで下向きに角度
をつけるのが一般的である。これを実現するために、セ
ンサー基板にあるこれらの投光素子、受光素子の前部に
投光方向を下方向に規制するトンネル状のガイドを設け
てセンサーケースに収納したり、センサーケース自体を
センサービームが下向きになるように傾けて搭載するよ
うなホルダーを設けていた。
2. Description of the Related Art Conventionally, for example, a human body sensor using an infrared ray of a toilet flushing device has been used in order to make it difficult to detect an opposing wall surface of a room where the human body sensor is installed and to make it easier to detect a human body. In general, the beam direction emitted from the optical element / light receiving element is downwardly angled without horizontally projecting and receiving light. To achieve this, a tunnel-shaped guide is provided at the front of these light-emitting and light-receiving elements on the sensor board to regulate the light emission direction downward, and is stored in the sensor case, or the sensor case itself is A holder was installed so that the sensor beam could be mounted so that it was tilted downward.

【0003】[0003]

【発明が解決しようとする課題】従来のように投受光素
子の前部にトンネル状のガイドを設けた場合、センサー
の前部ガイドを設けるスペースが必要であった。また、
センサーケース自体をセンサーの投光方向が下向きにな
るように傾けて搭載する場合は、センサーケースと便器
洗浄装置カバーの間にホルダーを設けるスペースが必要
だった。
When a tunnel-shaped guide is provided at the front of the light emitting and receiving element as in the prior art, a space for providing the front guide of the sensor is required. Also,
When mounting the sensor case itself so that the light emission direction of the sensor is downward, it was necessary to provide a space for a holder between the sensor case and the toilet bowl cover.

【0004】また、従来の投受光角変更方式では、セン
サー角度が一定となるため手すり等の誤感知やセンサー
感知範囲から外れた小さな子供の時など感知しない場合
がある。そのため設置場所によって角度の異なるフレー
ムや感知センサーを別途持たなくてはならないため、部
品点数が増えコストもかかる。
Further, in the conventional method of changing the projection / reception angle, the sensor angle is constant, so that there is a case where the sensor does not sense, for example, an erroneous detection of a handrail or a small child outside the sensor detection range. Therefore, since it is necessary to separately provide a frame and a sensing sensor having different angles depending on the installation location, the number of parts increases and the cost increases.

【0005】さらに、上記の不具合は施工後に判明する
ため、位置を変更しなければならない場合、大きな変更
工事が発生していた。本発明は、上記課題を解決するた
めになされたもので、その目的は、センサーの投受光方
向を変える手段を省スペースで実現することにある。本
発明の他の目的としては、設置場所の状況に応じて簡単
に角度変更が可能となり、施工時の調整が軽減され、部
品点数の削減とコスト低減を図ることにある。
[0005] Further, since the above-mentioned troubles become apparent after the construction, when the position must be changed, a large change work has occurred. SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to realize a means for changing a light emitting and receiving direction of a sensor in a small space. Another object of the present invention is to make it possible to easily change the angle in accordance with the situation of the installation location, reduce the adjustment at the time of construction, reduce the number of parts, and reduce the cost.

【0006】[0006]

【課題を解決するための手段】上記課題を解決するため
に、この発明は、人体を感知して給水する給水装置用の
人体感知センサーであって、少なくとも投光素子、受光
素子のいずれかの前面に光線の屈折する偏光板を配置し
たことを特徴とする。
SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention relates to a human body sensor for a water supply device that senses a human body and supplies water, wherein at least one of a light projecting element and a light receiving element is provided. A polarizing plate for refracting light rays is disposed on the front surface.

【0007】このように構成することで、偏光板でもっ
て投光方向又受光方向を変えることが出来、従来のよう
なセンサーの投受光角度を規制するトンネル状のガイド
が不要になり、外装ケースの前後厚さが薄くすることが
できる。従って、センサーケースの小型化、センサーの
取付部材の削除によるコストの低減、便器洗浄装置カバ
ーへの収納の容易化を実現することができる。
[0007] With this configuration, it is possible to change the light projecting direction or the light receiving direction by the polarizing plate, and it is not necessary to provide a tunnel-like guide for restricting the light projecting / receiving angle of the sensor as in the conventional case. The thickness before and after can be reduced. Therefore, it is possible to reduce the size of the sensor case, reduce the cost by removing the sensor attachment member, and facilitate the storage in the toilet bowl cleaning device cover.

【0008】上記偏光板の前部に光透過性材料を配置す
ることにより、光透過性材料により偏光板を保護するこ
とができる。特にたばこの火等によるいたずら防止とな
る。
By arranging a light transmitting material in front of the polarizing plate, the polarizing plate can be protected by the light transmitting material. In particular, it prevents mischief due to tobacco fire or the like.

【0009】上記偏光板の周囲に光の透過エリアを制限
する遮蔽部材を設けたことにより、例えば周囲環境でド
ア等を感知してしまう場合に、感知エリアを狭くでき、
誤感知を防止でき好ましい。
By providing a shielding member for limiting the light transmission area around the polarizing plate, for example, when a door or the like is sensed in the surrounding environment, the sensing area can be reduced.
This is preferable because erroneous sensing can be prevented.

【0010】上記偏光板をシート状としたことにより、
センサー本体への取付が容易になり好ましい。特にセン
サー本体の内側への偏向板の取付も容易になり、偏向板
の保護も可能となので好ましい。
[0010] By forming the polarizing plate into a sheet shape,
This is preferable because it can be easily attached to the sensor body. In particular, it is preferable because the attachment of the deflector to the inside of the sensor body becomes easy and the deflector can be protected.

【0011】上記偏光板を着脱自在に配置したことによ
り、偏向板を取り替え可能にすることで簡単に角度を変
えることができ施工性の向上が図れる。特に使用場所、
使用条件等により、偏光率の異なる偏光板に容易に交換
することができ、好ましい。
By arranging the polarizing plate detachably, the angle can be easily changed by making the polarizing plate replaceable, and the workability can be improved. Especially the place of use,
It is preferable because it can be easily replaced with a polarizing plate having a different polarization rate depending on the use conditions and the like.

【0012】[0012]

【発明の実施の形態】図1から図3に本発明の人体感知
センサーの第一実施例を示す。図1は本発明の人体感知
センサーの正面図である。図2は同断面図、図3は偏光
板の構造を示す拡大断面概念図である。
1 to 3 show a first embodiment of the human body sensor according to the present invention. FIG. 1 is a front view of a human body sensor according to the present invention. FIG. 2 is a sectional view of the same, and FIG. 3 is an enlarged sectional conceptual view showing the structure of the polarizing plate.

【0013】人体感知センサー1はセンサー本体2の右
側に投光素子3、左側に受光素子4を設けている。セン
サー本体2は後面を開口した箱状で、少なくとも前面壁
5は透過性の材料で構成されている。センサー本体2の
内部には投光素子3と受光素子4を取り付ける取付板6
を設けている。センサー本体2の前面壁5の裏面には偏
光板7を設けている。偏光板7は、センサー本体2の前
面壁5の裏面に接着等により貼り付けている。
The human body sensor 1 has a light projecting element 3 on the right side of the sensor body 2 and a light receiving element 4 on the left side. The sensor body 2 has a box shape with an open rear surface, and at least the front wall 5 is made of a transparent material. A mounting plate 6 for mounting the light emitting element 3 and the light receiving element 4 is provided inside the sensor body 2.
Is provided. A polarizing plate 7 is provided on the back surface of the front wall 5 of the sensor body 2. The polarizing plate 7 is attached to the back surface of the front wall 5 of the sensor main body 2 by bonding or the like.

【0014】図3に偏光板7の拡大断面図を示す。偏光
板7は樹脂からなるフイルム層8とプリズム層9により
構成されている。投光素子3から発せられた赤外線等の
光線は、プリズム層9の表面から入った光線は左側に偏
光し、フイルム層8の表面から光線が出ていく時に垂直
に対して20°左側に偏光して出て行く。この偏光角度
はプリズム層を変えることにより変更できる。
FIG. 3 is an enlarged sectional view of the polarizing plate 7. The polarizing plate 7 includes a film layer 8 made of resin and a prism layer 9. The light rays such as infrared rays emitted from the light projecting element 3 are such that the light rays entering from the surface of the prism layer 9 are polarized to the left, and the light rays are polarized to the left by 20 ° with respect to the vertical when exiting from the surface of the film layer 8. Then go out. This polarization angle can be changed by changing the prism layer.

【0015】このため、人体感知センサー1を水平に取
付けても、投光素子3からの赤外線等の光線は20°程
度下方に向けることができる。
Therefore, even if the human body sensor 1 is mounted horizontally, rays such as infrared rays from the light projecting element 3 can be directed downward by about 20 °.

【0016】図4から図5に本発明の第二実施例を示
す。第一実施例との相違は、人体感知センサー本体2の
前面壁5の表面に、投光素子3と受光素子4に対応する
部分のみに開口10、11を設けた遮蔽部材12を設け
た点である。遮蔽部材により感知エリアを狭くできるた
め、人体感知センサーの設置環境上ドア、手すり等を感
知してしまう場合には、感知エリアを狭くでき、誤感知
を防止することができる。
FIGS. 4 and 5 show a second embodiment of the present invention. The difference from the first embodiment is that a shielding member 12 having openings 10 and 11 only in portions corresponding to the light projecting element 3 and the light receiving element 4 is provided on the surface of the front wall 5 of the human body sensor main body 2. It is. Since the sensing area can be narrowed by the shielding member, when a door, a handrail, or the like is sensed in the installation environment of the human body sensor, the sensing area can be narrowed and erroneous sensing can be prevented.

【0017】図6に本発明の第三実施例を示す。図6は
人体感知センサーの主要部の断面図を示している。人体
感知センサー13は投光素子14と受光素子を備えたセ
ンサー本体15と、センサー本体15の前面に設けられ
たセンサーフレーム16と、センサーフレーム内に設け
られた、支持部材17と、偏向板18と、保護部材とし
てのガラス19と、開口20を設けたセンサーカバー2
1とから構成されている。センサー本体15は水平に設
けられているが、偏向板18により投光素子14からの
赤外線等の光線は水平に対し20°程度下方に投光され
る。
FIG. 6 shows a third embodiment of the present invention. FIG. 6 is a sectional view of a main part of the human body sensor. The human body sensor 13 includes a sensor body 15 having a light emitting element 14 and a light receiving element, a sensor frame 16 provided on the front surface of the sensor body 15, a support member 17 provided in the sensor frame, and a deflecting plate 18. , A glass 19 as a protection member, and a sensor cover 2 provided with an opening 20
And 1. Although the sensor main body 15 is provided horizontally, light beams such as infrared rays from the light projecting element 14 are projected downward by about 20 ° from the horizontal direction by the deflection plate 18.

【0018】偏向板18は、センサーフレーム16内で
支持部材17とガラス18により挟まれ、センサーカバ
ー21により押圧されて固定されている。偏向板18は
挟持固定されているため、センサーカバー21を外すこ
とにより着脱可能である。このため人体感知センサー1
3の設置条件に応じて、偏向板18を変えることによ
り、必要な偏向角度の偏向板に容易に交換できる。
The deflecting plate 18 is sandwiched between the support member 17 and the glass 18 in the sensor frame 16 and pressed and fixed by the sensor cover 21. Since the deflecting plate 18 is clamped and fixed, it can be detached by removing the sensor cover 21. Therefore, human body sensor 1
By changing the deflecting plate 18 according to the installation condition of 3, the deflecting plate can be easily replaced with a deflecting plate having a required deflection angle.

【0019】[0019]

【発明の効果】人体を感知して給水する給水装置用の人
体感知センサーであって、少なくとも投光素子、受光素
子のいずれかの前面に光線の屈折する偏光板を配置した
ため、容易に、センサーの投受光方向を変えることがで
きる。
According to the present invention, a human body detecting sensor for a water supply device for detecting and supplying water to a human body, wherein a polarizing plate for refracting a light beam is disposed at least in front of a light projecting element or a light receiving element. Can be changed.

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

【図1】本発明の第一実施例を示す人体感知センサーの
正面図。
FIG. 1 is a front view of a human body sensor according to a first embodiment of the present invention.

【図2】同人体感知センサーの断面図。FIG. 2 is a cross-sectional view of the human body detection sensor.

【図3】同人体感知センサーの偏向板の拡大概念図。FIG. 3 is an enlarged conceptual diagram of a deflection plate of the human body detection sensor.

【図4】本発明の第二実施例を示す人体感知センサーの
正面図。
FIG. 4 is a front view of a human body sensor according to a second embodiment of the present invention.

【図5】同人体感知センサーの断面図。FIG. 5 is a cross-sectional view of the human body detection sensor.

【図6】本発明の第三実施例を示す人体感知センサーの
要部の断面図。
FIG. 6 is a sectional view of a main part of a human body sensor according to a third embodiment of the present invention.

【符号の説明】[Explanation of symbols]

1:人体感知センサー 2:人体感知センサー本体 3:投光素子 4:受光素子 5:前面壁(光透過性材料) 7:偏向板 12:遮蔽部材 19:ガラス(光透過性材料) 1: human body detection sensor 2: human body detection sensor main body 3: light emitting element 4: light receiving element 5: front wall (light transmitting material) 7: polarizing plate 12: shielding member 19: glass (light transmitting material)

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 FI テーマコート゛(参考) G01V 9/04 D Fターム(参考) 2G065 AA04 AB02 AB22 AB28 BA02 BB10 BB21 BB46 DA15 DA20 5F089 BB02 BC15 BC30 CA06 DA14 GA01 GA10 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 7 Identification symbol FI theme coat ゛ (reference) G01V 9/04 DF term (reference) 2G065 AA04 AB02 AB22 AB28 BA02 BB10 BB21 BB46 DA15 DA20 5F089 BB02 BC15 BC30 CA06 DA14 GA01 GA10

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 人体を感知して給水する給水装置用の人
体感知センサーであって、少なくとも投光素子、受光素
子のいずれかの前面に光線の屈折する偏光板を配置した
ことを特徴とする人体感知センサー。
1. A human body detecting sensor for a water supply device for detecting and supplying water to a human body, wherein a polarizing plate for refracting a light beam is disposed on at least a front surface of either a light projecting element or a light receiving element. Human body sensor.
【請求項2】 上記偏光板の前部に光透過性材料を配置
したことを特徴とする請求項1記載の人体感知センサ
ー。
2. The human body sensor according to claim 1, wherein a light transmissive material is disposed in front of the polarizing plate.
【請求項3】 上記偏光板の周囲に光の透過エリアを制
限する遮蔽部材を設けたことを特徴とする請求項1又は
請求項2に記載の人体感知センサー。
3. The human body sensor according to claim 1, wherein a shielding member for limiting a light transmission area is provided around the polarizing plate.
【請求項4】 上記偏光板をシート状としたことを特徴
とする請求項1から請求項3のいずれかに記載の人体感
知センサー。
4. The human body detecting sensor according to claim 1, wherein the polarizing plate is formed in a sheet shape.
【請求項5】 上記偏光板を着脱自在に配置したことを
特徴とする請求項1から請求項4のいずれかに記載の人
体感知センサー
5. The human body sensor according to claim 1, wherein the polarizing plate is detachably disposed.
JP2000162449A 2000-05-31 2000-05-31 Human-body detecting sensor Pending JP2001343468A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2000162449A JP2001343468A (en) 2000-05-31 2000-05-31 Human-body detecting sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000162449A JP2001343468A (en) 2000-05-31 2000-05-31 Human-body detecting sensor

Publications (1)

Publication Number Publication Date
JP2001343468A true JP2001343468A (en) 2001-12-14

Family

ID=18666342

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000162449A Pending JP2001343468A (en) 2000-05-31 2000-05-31 Human-body detecting sensor

Country Status (1)

Country Link
JP (1) JP2001343468A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004184281A (en) * 2002-12-04 2004-07-02 Brother Ind Ltd Reflection-type optical sensor, carriage, and information processing apparatus
KR20160095323A (en) * 2015-02-03 2016-08-11 엘지이노텍 주식회사 Optical sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004184281A (en) * 2002-12-04 2004-07-02 Brother Ind Ltd Reflection-type optical sensor, carriage, and information processing apparatus
US7167248B2 (en) 2002-12-04 2007-01-23 Brother Kogyo Kabushiki Kaisha Reflection-type optical sensor, carriage, and data processing device
KR20160095323A (en) * 2015-02-03 2016-08-11 엘지이노텍 주식회사 Optical sensor
KR102340777B1 (en) * 2015-02-03 2021-12-20 엘지이노텍 주식회사 Optical sensor

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