JPH01221184A - Small object passage detector - Google Patents
Small object passage detectorInfo
- Publication number
- JPH01221184A JPH01221184A JP4812188A JP4812188A JPH01221184A JP H01221184 A JPH01221184 A JP H01221184A JP 4812188 A JP4812188 A JP 4812188A JP 4812188 A JP4812188 A JP 4812188A JP H01221184 A JPH01221184 A JP H01221184A
- Authority
- JP
- Japan
- Prior art keywords
- light
- receiving element
- emitting element
- small object
- detection
- 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
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 7
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract 1
- 239000012466 permeate Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Pinball Game Machines (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、パチンコ玉等の小物体の通過を検出する小物
体通過検出器に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a small object passage detector that detects the passage of a small object such as a pachinko ball.
［従来の技術］
一般に、この種の小物体通過検出器は、パチンコ玉等の
小物体が通過できる検出通路を有した本体を備え、検出
通路の周壁に発光素子と受光素子とを対向配置して形成
されている。したがって、小物体が検出通路を通過した
ときに発光素子からの光が小物体によって遮断されるこ
とにより、受光素子では小物体の通過を検出するわけで
ある。[Prior Art] Generally, this type of small object passage detector includes a main body having a detection passage through which a small object such as a pachinko ball can pass, and a light emitting element and a light receiving element are disposed facing each other on the peripheral wall of the detection passage. It is formed by Therefore, when a small object passes through the detection path, the light from the light emitting element is blocked by the small object, so that the light receiving element detects the passage of the small object.
ここに、従来の小物体通過検出器では、発光素子から検
出通路内に放射される光を透過させるために、本体を透
光性材料で形成していたｌ！！！！昭６２−２２１３８
３号公報、実開昭６２−１２５５７３号公報参照）。In conventional small object passage detectors, the main body is made of a translucent material in order to transmit the light emitted from the light emitting element into the detection path. ! ! ! Showa 62-22138
(See Publication No. 3 and Japanese Utility Model Application Publication No. 62-125573).
［発明が解決しようとする課題１
上記従来構成では、本体が透光性材料で形成されていた
ものであるから、受光素子に外光が入射しやすく、小物
体の通過を誤検出したり、検出漏れが生じやすいという
問題があった。[Problem to be Solved by the Invention 1] In the conventional configuration described above, the main body is made of a light-transmitting material, so external light easily enters the light-receiving element, leading to erroneous detection of passage of small objects. There was a problem in that detection errors were likely to occur.
本発明は上述の問題点を解決することを目的とするもの
であり、外光の影響による誤検出や検出漏れがない小物
体通過検出器を提供しようとするものである。The present invention aims to solve the above-mentioned problems, and provides a small object passage detector that does not cause false detection or omission of detection due to the influence of external light.
［８題を解決するための手段１
本発明では、上記目的を達成するために、本体を可視光
線および赤外線に対して不透明な材料で形成し、発光素
子および受光素子の前方にそれぞれ発光素子から放射さ
れる光が透過可能なフィルタを配設した構成を有してい
る。[Means for Solving Problem 8] In the present invention, in order to achieve the above object, the main body is formed of a material that is opaque to visible light and infrared rays, and a light emitting element is provided in front of the light emitting element and a light receiving element, respectively. It has a configuration in which a filter is provided through which emitted light can pass.
［作用］
上記構成によれば、可視光線や赤外線が本体を透過しな
いから、受光素子には外光がほとんど入射することがな
いのであり、フィルタを透過することができる発光素子
からの光のみが受光素子に入射するのである。すなわち
、受光素子に外光が入射しないから、外光による誤検出
や検出漏れが防止できるのである。[Function] According to the above configuration, visible light and infrared rays do not pass through the main body, so almost no external light enters the light receiving element, and only light from the light emitting element that can pass through the filter. The light is incident on the light receiving element. That is, since external light does not enter the light receiving element, false detection or detection failure due to external light can be prevented.
［実施例］
第１図ないし第３図に示すように、本体１０は下ケース
１１に上ケース１２を被嵌して形成されている。下ケー
ス１１と上ケース１２とは可視光線と赤外線とに対して
不透明な合成樹脂により略矩形状に形成されており、そ
れぞＩ′Ｌ８角形状角形孔１３ａ、１３ｂが形成されて
いる。下ケース１１と上ケース１２との透孔１３ａ、１
３ｂは、下ケース１１と上ケース１２とを組み合わせた
ときに小物体の検出通路１３を形成するのであって、こ
こでは小物体としてパチンコ玉を考慮し、透孔１３ａ、
１３ｂの径はパチンコ玉の径よりも若干大きい程度に設
定されている。下ケース１１の一側縁には組立枠１４が
立設されており、組立枠１４に対向するＩｌ！縁には略
Ｔ形の係合片１５が立設される。[Embodiment] As shown in FIGS. 1 to 3, the main body 10 is formed by fitting an upper case 12 into a lower case 11. As shown in FIGS. The lower case 11 and the upper case 12 are formed into substantially rectangular shapes made of synthetic resin that is opaque to visible light and infrared rays, and have I'L8 square holes 13a and 13b, respectively. Through holes 13a, 1 between lower case 11 and upper case 12
3b forms a small object detection passage 13 when the lower case 11 and upper case 12 are combined.Here, pachinko balls are considered as small objects, and the through holes 13a,
The diameter of the ball 13b is set to be slightly larger than the diameter of the pachinko ball. An assembly frame 14 is erected on one side edge of the lower case 11, and Il! A substantially T-shaped engagement piece 15 is provided upright on the edge.
また、組立枠１４に隣合う両側縁にはそれぞれ切欠［１
６が形成されている。一方、上ケース１２には組立枠１
４に嵌合する突片１７、係合片１５に係合する係合溝１
８が形成されでおり、さらに、下ケース１１の切欠部１
６には、上テース１２の周壁の内側に突出する突条（図
示せず）が嵌合するようになっている。突条に対応する
部位で上ケース１２の外側面には本体１０を他の部材に
固定するための日清１９が形成される。Further, each side edge adjacent to the assembly frame 14 has a notch [1].
6 is formed. On the other hand, the upper case 12 has an assembly frame 1
4 and the engagement groove 1 that engages with the engagement piece 15.
8 is formed, and furthermore, a notch 1 of the lower case 11 is formed.
A protrusion (not shown) that protrudes inward from the peripheral wall of the upper teeth 12 is fitted into the upper teeth 6 . Nissins 19 for fixing the main body 10 to other members are formed on the outer surface of the upper case 12 at locations corresponding to the protrusions.
下ケース１１には透孔１３ｍの周囲の２１１１所に、取
付凹所２１ｍ、２１ｂが形成されており、両数付凹所２
１ａ、２１ｂの一部は透孔１３ａに臨んで開放されてい
る６両数付凹所２１ａ、２１ｂは、透孔１３ａの中心線
を含む一つの平面に対し、その平面の一側に偏って配置
されている。各取付凹所２１ａ、２１ｂ内にはそれぞれ
赤外線を投受光する発光素子２２、受光素子２３が納装
されるのであって、発光素子２２と受光素子２３とは互
いに対向する形に配設される１発光素子２２と受光素子
２３との前面側で両数付凹所２１ａ、２１ｂの間には透
孔１３ａの周縁に沿う形でスリット溝２４が形成されて
おり、このスリット溝２４内には発光素子２２から放射
される赤外線が透過するフィルタ２５が装着される。す
なわち、このフィルタ２５は、発光素子２２と受光素子
２３とに共用されるわけである。このように、１個のフ
ィルタ２５を発光素子２２と受光素子２３とに用いるこ
とにより、フィルタ２５の成型が１度で行なえて金型費
用の削減につながるのであり、また、組立時の部品点数
の削減にもつながるのである。In the lower case 11, mounting recesses 21m and 21b are formed at 2111 locations around the through hole 13m, and mounting recesses 21 and 21b are formed in the lower case 11.
The recesses 21a and 21b, which are partly open facing the through hole 13a, are biased toward one side of a plane containing the center line of the through hole 13a. It is located. A light emitting element 22 and a light receiving element 23 that emit and receive infrared rays are housed in each of the mounting recesses 21a and 21b, respectively, and the light emitting element 22 and the light receiving element 23 are arranged to face each other. 1 A slit groove 24 is formed along the periphery of the through hole 13a between the numbered recesses 21a and 21b on the front side of the light emitting element 22 and the light receiving element 23. A filter 25 that transmits infrared rays emitted from the light emitting element 22 is attached. That is, this filter 25 is shared by the light emitting element 22 and the light receiving element 23. In this way, by using one filter 25 for the light-emitting element 22 and the light-receiving element 23, the filter 25 can be molded in one step, which leads to a reduction in mold costs, and also reduces the number of parts during assembly. This also leads to a reduction in
本体１０内で下ケース１１上にはシールド板３１を介し
てプリント基板３２が積層されており、シールド板３１
およびプリント基板３２にはそれぞれ透孔１３ｍ、１３
ｂに合致する透孔３３ｍ、３３ｂが形成されている。こ
こに、シールド板３１およびプリント基板３２の本体１
０に対する位置決めは、下ケース１１に立設された一対
の位置決めピン３４を、シールド板３１お上りプリント
基板３２に形成された位置決め孔３５ａ、３５ｂに挿通
することで行なわれており、位置決めビン３４の先端部
は、第３図に示すように、上ケース１２の下面に形成さ
れたピン受は穴３５に嵌合する。プリント基板３２上に
は発光素子２２の発光制御をしたり、受光素子２３での
受光量の変化に基づいてオン・オフ出力を得たりするた
めの回路部が実装されている。また、発光素子、２２お
よび受光素子２３は、プリント基板３２の適所に形成さ
れた接続孔３６ａ、３６ｂにそれぞれ直付けされる。さ
らに、シールド板３１の一所には接続片３７が形成され
ており、この接続片３７がプリント基板３２の接続孔３
８に直付けされることにより、シールド板３１がプリン
ト基板３２のアースパターンに電気的に接続されるよう
になっている。したがって、検出通路１３を通るパチン
コ玉が帯電している場合でも、その静電気はシールド板
３１を介して回路部の接地側に逃がされるのであり、回
路部が保護されるのである。A printed circuit board 32 is laminated on the lower case 11 in the main body 10 with a shield plate 31 interposed therebetween.
And the printed circuit board 32 has through holes 13m and 13m, respectively.
Through holes 33m and 33b are formed to match b. Here, the main body 1 of the shield plate 31 and the printed circuit board 32
Positioning with respect to 0 is performed by inserting a pair of positioning pins 34 erected in the lower case 11 into positioning holes 35a and 35b formed in the printed circuit board 32 of the shield plate 31. As shown in FIG. 3, the tip of the pin receiver formed on the lower surface of the upper case 12 fits into the hole 35. A circuit section is mounted on the printed circuit board 32 to control the light emission of the light emitting element 22 and to obtain an on/off output based on a change in the amount of light received by the light receiving element 23. Further, the light emitting element 22 and the light receiving element 23 are directly attached to connection holes 36a and 36b formed at appropriate positions on the printed circuit board 32, respectively. Further, a connecting piece 37 is formed at one place on the shield plate 31, and this connecting piece 37 is connected to the connecting hole 3 of the printed circuit board 32.
8, the shield plate 31 is electrically connected to the ground pattern of the printed circuit board 32. Therefore, even if a pachinko ball passing through the detection path 13 is charged, the static electricity is released to the ground side of the circuit section through the shield plate 31, and the circuit section is protected.
以上のようにして構成された小物体通過検出器を、パチ
ンコ台に取り付ける場合には、発光素子２２と受光素子
２３とが、パチンコ台のがラス板備に位置するように取
り付ければ、検出通路１３内に光が入射しでも受光素子
２３には入射しないのであり、本体１０が不透明である
ことに加えで、外光の影響を一層少なくすることができ
るのである。When the small object passage detector configured as described above is attached to a pachinko machine, the light emitting element 22 and the light receiving element 23 are installed so that they are located on the last board of the pachinko machine, and the detection path Even if light enters the light receiving element 13, it does not enter the light receiving element 23, and in addition to the fact that the main body 10 is opaque, the influence of external light can be further reduced.
〔発明の効果１
本発明は上述のように、本体を可視光線および赤外線に
対して不透明な材料で形成し、発光素子および受光素子
の前方にそれぞれ発光素子から放射される光が透過可能
なフィルタを配設したちのであり、可視光線や赤外線が
本体を透過しないから、受光素子には外光がほとんど入
射することがなく、フィルタを透過することができる発
光素子からの光のみが受光素子に入射するのである。す
なわち、受光素子に外光が入射しないから、外光による
誤検出や検出漏れが防止できるという利点を有する。[Effects of the Invention 1] As described above, the present invention includes a main body made of a material that is opaque to visible light and infrared rays, and a filter through which light emitted from the light emitting element can pass in front of the light emitting element and the light receiving element. Since visible light and infrared rays do not pass through the main body, almost no external light enters the light-receiving element, and only light from the light-emitting element that can pass through the filter reaches the light-receiving element. It is incident. That is, since external light does not enter the light receiving element, there is an advantage that erroneous detection or detection failure due to external light can be prevented.
第１図は本発明の一実施例を示す分解斜視図、第２図は
同上の斜視図、１３図は同上の断面図である。
１０・・・本体、２２・・・発光素子、２３・・・受光
素子、２５・・・フィルタ。
代理人 弁理士 石 １）長 七FIG. 1 is an exploded perspective view showing one embodiment of the present invention, FIG. 2 is a perspective view of the same, and FIG. 13 is a sectional view of the same. DESCRIPTION OF SYMBOLS 10... Main body, 22... Light emitting element, 23... Light receiving element, 25... Filter. Agent Patent Attorney Ishi 1) Choshichi
Claims (1)
出通路が貫設された本体と、検出通路の周壁の適所に検
出通路内に臨んで配設された発光素子と、検出通路の周
壁の適所に小物体が検出通路を通過するときの光量変化
が検出できるように検出通路内に臨んで配設された受光
素子と、発光素子および受光素子の前方にそれぞれ配設
され発光素子から放射される光が透過可能なフィルタと
を具備し、本体は可視光線および赤外線に対して不透明
な材料で形成されて成ることを特徴とする小物体通過検
出器。(1) A main body through which a detection passage that becomes a part of the path for small objects such as pachinko balls passes through, a light emitting element disposed at an appropriate position on the peripheral wall of the detection passage facing into the detection passage, and a detection passage. A light-receiving element is placed facing into the detection passage so as to be able to detect changes in light intensity when a small object passes through the detection passage, and a light-emitting element is placed in front of the light-emitting element and the light-receiving element, respectively. 1. A small object passage detector, comprising: a filter through which light emitted from the detector can pass; and a main body made of a material that is opaque to visible light and infrared rays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4812188A JPH01221184A (en) | 1988-02-29 | 1988-02-29 | Small object passage detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4812188A JPH01221184A (en) | 1988-02-29 | 1988-02-29 | Small object passage detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01221184A true JPH01221184A (en) | 1989-09-04 |
Family
ID=12794497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4812188A Pending JPH01221184A (en) | 1988-02-29 | 1988-02-29 | Small object passage detector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01221184A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018033738A (en) * | 2016-08-31 | 2018-03-08 | 株式会社三洋物産 | Game machine |
-
1988
- 1988-02-29 JP JP4812188A patent/JPH01221184A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018033738A (en) * | 2016-08-31 | 2018-03-08 | 株式会社三洋物産 | Game machine |
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