JPS6372019A - Photoelectric switch - Google Patents
Photoelectric switchInfo
- Publication number
- JPS6372019A JPS6372019A JP21674186A JP21674186A JPS6372019A JP S6372019 A JPS6372019 A JP S6372019A JP 21674186 A JP21674186 A JP 21674186A JP 21674186 A JP21674186 A JP 21674186A JP S6372019 A JPS6372019 A JP S6372019A
- Authority
- JP
- Japan
- Prior art keywords
- light
- case
- photoelectric switch
- light receiving
- section
- 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
Links
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Electronic Switches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の分野〕
本発明はケースの側方を物体検知方向とした光電スイッ
チに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a photoelectric switch whose object detection direction is along the side of the case.
本発明による光電スイッチは、筒状に形成されたケース
内にケースの側方に光を照射する投光部及びケースの側
方からの光を受光する受光部を設け、側方の任意の方向
からの物体を検出するようにしたものである。The photoelectric switch according to the present invention is provided with a light projecting part that emits light to the side of the case and a light receiving part that receives light from the side of the case in a case formed in a cylindrical shape. It is designed to detect objects from.
（従来技術）
従来の反射型光電スイッチはケースの前方又は側壁の一
面に検知面を有している。このような従来の光電スイッ
チにあっては、検知面の投光領域から光を照射し、同一
面状に形成された受光領域に物体からの反射光が与えら
れたときにその反射光を検知して物体の有無を検出して
いた。(Prior Art) A conventional reflective photoelectric switch has a sensing surface on one side of the front or side wall of the case. In such conventional photoelectric switches, light is emitted from the light emitting area of the detection surface, and when the reflected light from an object is applied to the light receiving area formed on the same surface, the reflected light is detected. to detect the presence or absence of objects.
（発明が解決しようとする問題点）
このような従来の光電スイッチでは、物体の検出方向が
固定されるため一旦光電スイッチを取付けてしまうと容
易に検出方向を変えることができなかった。検出方向を
変える必要がある場合には光電スイッチ自体を取付装置
の取付位置から一旦取外してその方向を変える必要があ
って作業性が悪く、又取付装置自体の変更が必要になる
ことがあるという問題点もあった。(Problems to be Solved by the Invention) With such conventional photoelectric switches, the detection direction of an object is fixed, so once the photoelectric switch is installed, the detection direction cannot be easily changed. If it is necessary to change the detection direction, it is necessary to remove the photoelectric switch itself from the mounting position of the mounting device and change its direction, resulting in poor work efficiency and the need to change the mounting device itself. There were also problems.
本発明はこのような従来の光電スイッチの問題点に鑑み
てなされたものであって、任意の方向の物体を検出する
ようにすることを技術的課題とする。The present invention has been made in view of the problems of the conventional photoelectric switch, and its technical problem is to detect objects in any direction.
（問題点を解決するための手段）
本発明はケースの側方を物体検知方向とした光電スイッ
チであって、第１図に示すように、筒状に形成されたケ
ースと、ケース内に設けられ、その側方に光を照射する
投光部と、ケース内に設けられ、その側方からの光を受
光する受光部と、を有することを特徴とするものである
。(Means for Solving the Problems) The present invention is a photoelectric switch in which the side of the case is the object detection direction, and as shown in FIG. The device is characterized in that it has a light projecting section that emits light from the side thereof, and a light receiving section that is provided within the case and receives light from the side.
（作用）
このような特徴を有する本発明によれば、投光部から発
された光をケースの側方に照射するようにしており、同
じくケースの側方からの光を受光部によって受光するよ
うにしている。(Function) According to the present invention having such characteristics, the light emitted from the light projecting part is irradiated to the side of the case, and the light from the side of the case is similarly received by the light receiving part. That's what I do.
（発明の効果）
そのため本発明ではケース側方の種々の位置からの物体
を検知することができる。又従来の反射型光電スイッチ
と異なり投受光面が同一平面上に配置されずケース側方
に光を照射するようにしているため、投光素子と受光素
子とをケースの軸に沿って縦列に配置することができ、
ケースの外形を小さくすることも可能となる。(Effects of the Invention) Therefore, in the present invention, objects can be detected from various positions on the side of the case. Also, unlike conventional reflective photoelectric switches, the light emitting and receiving surfaces are not arranged on the same plane and the light is emitted to the side of the case, so the light emitting element and the light receiving element are arranged vertically along the axis of the case. can be placed,
It is also possible to reduce the outer size of the case.
第１図は本発明の一実施例による光電スイッチ本体の縦
断面図であり、第２図はその組立構成図である。これら
の図において光電スイッチのケース１は円筒形に構成さ
れており、その側壁に投受光用の窓を有している。ケー
ス１内には円筒の中心軸に沿って投光素子２と受光素子
３とが縦列に配置され、投光素子２は円柱状の素子ホル
ダ４゜受光素子３は環状の素子ホルダ５内に保持されて
いる。そして夫々投光素子２．３に対向する位置に円錐
状に形成された反射体６及び７を設ける。FIG. 1 is a longitudinal sectional view of a photoelectric switch main body according to an embodiment of the present invention, and FIG. 2 is an assembled configuration diagram thereof. In these figures, a case 1 of the photoelectric switch has a cylindrical shape, and has a window for transmitting and receiving light on its side wall. Inside the case 1, a light emitting element 2 and a light receiving element 3 are arranged in a vertical line along the central axis of the cylinder. Retained. Cone-shaped reflectors 6 and 7 are provided at positions facing the light projecting elements 2.3, respectively.
反射体６及び７の反射面は円錐形、好ましくは頂角が直
角に形成された直円錐形に形成するものとする。反射体
６はケース１の前面の背後に設けられ投光素子２からの
光をケース１の中心軸に垂直な面に照射するものであり
、反射体７は素子ホルダ４の背面に設けられ軸に垂直な
面からケース１に与えられる光を反射して受光素子３に
与えるものである。The reflective surfaces of the reflectors 6 and 7 are formed into a conical shape, preferably a right conical shape with the apex angle formed at a right angle. The reflector 6 is provided behind the front surface of the case 1 to irradiate the light from the light emitting element 2 onto a plane perpendicular to the central axis of the case 1, and the reflector 7 is provided behind the front surface of the element holder 4 and directs the light from the light emitting element 2 onto a plane perpendicular to the central axis of the case 1. The light applied to the case 1 from a plane perpendicular to is reflected and applied to the light receiving element 3.
そしてケース１には第２図に斜視図、第３図にＡ−Ａ線
断面図を示すように、ケース１内の反射体６に対応する
位置に例えば４カ所の投光用窓８ａ〜８ｄが設けられて
おり、その窓８ａ〜８ｄの表面に透明の円弧状の透明カ
バー９ａ〜９ｄが設けられてケース１の側壁を構成して
いる。又受光用の反射体７に対向して投光用窓８ａ〜８
ｄと平行な位置に受光用窓１０２〜１０ｄが設けられて
おり、その窓１０ａ〜１０ｄの表面に円弧状の透明カバ
ー１１ａ〜ｌｉｄが貼付けられ、同様にしてケース１の
側壁を構成している。そして第４図にＢ−Ｂ線断面図を
示すように、受光素子３の後方にはプリント基板１２上
に実装された検知回路部１３が設けられている。検知回
路部１３は投光素子２を駆動すると共に受光素子３から
の受光信号に基づいて物体の有無を検知するものである
。The case 1 has, for example, four light projection windows 8a to 8d at positions corresponding to the reflector 6 in the case 1, as shown in a perspective view in FIG. are provided, and transparent arc-shaped transparent covers 9a to 9d are provided on the surfaces of the windows 8a to 8d to constitute side walls of the case 1. Also, facing the light receiving reflector 7 are light projecting windows 8a to 8.
Light-receiving windows 102-10d are provided at positions parallel to d, and arc-shaped transparent covers 11a-lid are attached to the surfaces of the windows 10a-10d, and similarly constitute the side wall of case 1. . As shown in a sectional view taken along line B-B in FIG. 4, a detection circuit section 13 mounted on a printed circuit board 12 is provided behind the light receiving element 3. The detection circuit section 13 drives the light emitting element 2 and detects the presence or absence of an object based on the light reception signal from the light receiving element 3.
本実施例においては投光素子２１反射体６．投光用窓８
ａ〜８ｄと透明カバー９ａ〜９ｄによって投光部が構成
され、受光素子３１反射体７．受光用窓１０ａ 〜１０
ｄと透明カバー１１ａ−１ｉｄによって受光部が構成さ
れている。In this embodiment, the light projecting element 21 reflector 6. Floodlight window 8
A to 8d and transparent covers 9a to 9d constitute a light projecting section, and the light receiving element 31 reflector 7. Light receiving windows 10a to 10
d and transparent covers 11a-1id constitute a light receiving section.
こうして構成された光電スイッチ本体のケース１に第２
図に示すように投光用窓９ａ〜９ｄ、受光用窓１０２〜
１０ｄのスリット幅と同一の幅のスリットを有する円筒
状の遮光カバー１４を取付ける。この遮光カバー１４は
投受光用窓のいずれかの窓を選択的に使用するために用
いるものであって、不透明の弾性部材から構成されケー
ス１に被せて使用するものとする。こうすれば光電スイ
ッチを所定の位置に取付けても投光素子からの照射光及
び受光素子に与えられる反射光の方向を遮光カバー１４
を回転させることによって任意に変化させることができ
る。又遮光カバー１４を用いることなく四方の物体を同
時に検出することも可能である。In the case 1 of the photoelectric switch body configured in this way,
As shown in the figure, light emitting windows 9a to 9d, light receiving windows 102 to
A cylindrical light-shielding cover 14 having a slit with the same width as the slit width 10d is attached. The light-shielding cover 14 is used to selectively use one of the light emitting and receiving windows, is made of an opaque elastic member, and is used by covering the case 1. In this way, even if the photoelectric switch is installed in a predetermined position, the direction of the irradiated light from the light emitting element and the reflected light given to the light receiving element can be controlled by the light shielding cover 14.
It can be changed arbitrarily by rotating. Furthermore, it is also possible to detect objects in four directions simultaneously without using the light-shielding cover 14.
尚本実施例は投光用窓８ａ〜８ｄ、受光用窓ＩＱａ−１
０ｄに夫々透明カバー９ａ〜９ｄ、１１ａ〜Ｌｉｄを設
けてケース１の側壁を構成しているが、このような透明
カバーを設けることなくケース１の全周に円筒の透明カ
バーを固定し、更にその外周に前述した遮光カバー１４
を被せ遮光カバー１４のみを検知方向に合わせて回転さ
せるようにすることも可能である。In this embodiment, the light emitting windows 8a to 8d and the light receiving window IQa-1 are used.
Transparent covers 9a to 9d and 11a to Lid are provided on each side of the case 1 to constitute the side wall of the case 1, but a cylindrical transparent cover is fixed around the entire circumference of the case 1 without providing such transparent covers. The above-mentioned light-shielding cover 14 is placed on the outer periphery of the
It is also possible to cover the light-shielding cover 14 and rotate only the light-shielding cover 14 according to the detection direction.
更に本実施例はケースの側壁の四方に投光用及び受光用
の窓を形成しているが、ケースの全周に透明の側壁を形
成することも可能である。Further, in this embodiment, windows for projecting and receiving light are formed on all sides of the side wall of the case, but it is also possible to form transparent side walls around the entire circumference of the case.
第１図は本発明の一実施例による光電スイッチ本体の縦
断面図、第２図は本実施例の光電スイッチの組立構成図
、第３図はその光電スイッチのＡ−Ａ線断面図、第４図
はそのＢ−Ｂ線断面図である。
ｌ・−・・−ケース ２−−−−一・−投光素子
３−−−−−−・受光素子 ４． ５−−−−−−一
素子ホルダ ６． ７−−−−−−−反射体 ３
ａ 〜３ ｄ−−−−−一投光用窓 ９ａ〜９ｄ。
１１ ａ 〜１１ ｄ−−−−−−透明カバー １０
ａ〜１０ｄ−・・−・受光用窓 １３−・・・・・検
知回路部 １４−−−一−−−遮光カバー
特許出願人 立石電機株式会社
代理人 弁理士 岡本宜喜（他１名）
第１図
１・−−一一−−−−−−切一ス
２−−−−−−−−−−−キ貸−先鳴ｈテ３−−−−−
−・−−−−ｋ先系予
８ａ−８ｄ−−−−−・役九用宅。
１０ａ〜１０ｄ−−−−−ｉｉ用忌
第２図FIG. 1 is a vertical sectional view of a photoelectric switch main body according to an embodiment of the present invention, FIG. 2 is an assembled configuration diagram of the photoelectric switch of this embodiment, FIG. 3 is a sectional view taken along line A-A of the photoelectric switch, and FIG. FIG. 4 is a sectional view taken along line B-B. l・-・・−Case 2−−−1・−Light emitter
3-------・Photo-receiving element 4. 5------One element holder 6. 7---------Reflector 3
a to 3 d-----One light projection window 9a to 9d. 11 a to 11 d --- Transparent cover 10
a~10d---Light receiving window 13---Detection circuit section 14---1---Light shielding cover Patent applicant Tateishi Electric Co., Ltd. agent Patent attorney Yoshiki Okamoto (1 other person) Fig. 1 1・---11------------
-・----k Precedents 8a-8d----・Yaku-ku's house. 10a to 10d----ii Recommendations Figure 2
Claims (5)
部と、 前記ケース内に設けられ、その側方からの光を受光する
受光部と、を有することを特徴とする光電スイッチ。(1) A case formed in a cylindrical shape, a light projecting section provided within the case and emitting light from the side thereof, and a light receiving section provided within the case receiving light from the side thereof. A photoelectric switch characterized by having the following.
の反射体と、該反射体の頂点に対向して配置された投光
素子と、を有することを特徴とする特許請求の範囲第１
項記載の光電スイッチ。(2) The light projecting section has a conical reflector having an axis along the case, and a light projecting element disposed opposite to the apex of the reflector. Range 1
Photoelectric switch described in section.
の反射体と、該反射体の頂点に対向して配置された受光
素子と、を有することを特徴とする特許請求の範囲第１
項記載の光電スイッチ。(3) The light receiving section has a conical reflector having an axis along the case, and a light receiving element disposed opposite to the apex of the reflector. 1
Photoelectric switch described in section.
の側壁にスリットを有する遮光カバーを有することを特
徴とする特許請求の範囲第１項記載の光電スイッチ。(4) The photoelectric switch according to claim 1, wherein the photoelectric switch has a light-shielding cover that is placed over the case and has a slit in a predetermined side wall.
数の投光用窓と該所定方向からの光を受光する受光用窓
を有することを特徴とする特許請求の範囲第１項記載の
光電スイッチ。(5) The case has a plurality of light projecting windows that emit light in a predetermined side direction and a light receiving window that receives light from the predetermined direction. Photoelectric switch as described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21674186A JPS6372019A (en) | 1986-09-12 | 1986-09-12 | Photoelectric switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP21674186A JPS6372019A (en) | 1986-09-12 | 1986-09-12 | Photoelectric switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6372019A true JPS6372019A (en) | 1988-04-01 |
Family
ID=16693204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP21674186A Pending JPS6372019A (en) | 1986-09-12 | 1986-09-12 | Photoelectric switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6372019A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5430752A (en) * | 1977-08-10 | 1979-03-07 | Itek Corp | High speed realltime computer emulator |
| JPS595980A (en) * | 1982-06-15 | 1984-01-12 | ベザム・ア−ベ− | Photoelectric detector |
-
1986
- 1986-09-12 JP JP21674186A patent/JPS6372019A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5430752A (en) * | 1977-08-10 | 1979-03-07 | Itek Corp | High speed realltime computer emulator |
| JPS595980A (en) * | 1982-06-15 | 1984-01-12 | ベザム・ア−ベ− | Photoelectric detector |
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