JPH088374B2 - Method for manufacturing reflective photo interrupter - Google Patents
Method for manufacturing reflective photo interrupterInfo
- Publication number
- JPH088374B2 JPH088374B2 JP26860393A JP26860393A JPH088374B2 JP H088374 B2 JPH088374 B2 JP H088374B2 JP 26860393 A JP26860393 A JP 26860393A JP 26860393 A JP26860393 A JP 26860393A JP H088374 B2 JPH088374 B2 JP H088374B2
- Authority
- JP
- Japan
- Prior art keywords
- light
- light emitting
- emitting element
- light receiving
- receiving element
- 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.)
- Expired - Fee Related
Links
Landscapes
- Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、発光素子と受光素子と
を概同一平面に並列配置してなる反射型ホトインタラプ
タの製造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a reflection type photo interrupter in which a light emitting element and a light receiving element are arranged in parallel on substantially the same plane.
【０００２】[0002]
【従来の技術】図３及び図４は、それぞれ異なる従来例
の反射型ホトインタラプタの製造方法を説明するための
図であり、同図（ａ）及び（ｂ）はそれぞれ上面図及び
断面図である。図３及び図４に示す反射型ホトインタラ
プタの製造方法は、いずれも、エポキシ樹脂等の熱硬化
性樹脂によりそれぞれモールドされた発光素子１と受光
素子２とを形成し、該発光素子１と受光素子２とを別部
品の樹脂成形されたケース体３に接着剤４にて固定され
ている。2. Description of the Related Art FIGS. 3 and 4 are views for explaining a method of manufacturing a reflection type photointerrupter of a different conventional example. FIGS. 3A and 3B are a top view and a sectional view, respectively. is there. 3 and 4, the light-emitting element 1 and the light-receiving element 2 which are respectively molded by a thermosetting resin such as an epoxy resin are formed and the light-emitting element 1 and the light-receiving element are received. The element 2 is fixed to a case body 3 which is a resin-molded part and which is a separate component, with an adhesive 4.
【０００３】図３に示す反射型ホトインタラプタの製造
方法は、発光素子１および受光素子２を、それぞれ挿入
方向における各素子１，２の先端部でケース体３に接
着、固定している。また、図４に示す反射型ホトインタ
ラプタの製造方法は、発光素子１および受光素子２を各
素子１，２の根元部にてケース体３に接着、固定してい
る。In the method of manufacturing the reflection type photo interrupter shown in FIG. 3, the light emitting element 1 and the light receiving element 2 are bonded and fixed to the case body 3 at the tips of the respective elements 1 and 2 in the insertion direction. Further, in the method of manufacturing the reflection type photo interrupter shown in FIG. 4, the light emitting element 1 and the light receiving element 2 are bonded and fixed to the case body 3 at the roots of the elements 1 and 2.
【０００４】[0004]
【発明が解決しようとする課題】ところが、前者はケー
ス体３内部で各素子１，２の先端部のみ固定しているた
め、接着強度が弱く、素子１，２がケース体３から抜け
出る可能性がある。However, since the former fixes only the tips of the elements 1 and 2 inside the case body 3, the adhesive strength is weak and the elements 1 and 2 may come out of the case body 3. There is.
【０００５】一方、後者は、前者に比べると接着力が強
く、発光素子１および受光素子２がケース体３から抜け
出る可能性はかなり少ない。しかし導光穴間ピッチＰが
一定の場合、ケース体３の全長ｌ′を接着しろｔ1及び
ｔ2分長くする必要があるため、さらに小型化を図るこ
とは困難である。On the other hand, the latter has a stronger adhesive force than the former and the possibility that the light emitting element 1 and the light receiving element 2 will come out of the case body 3 is considerably small. However, if the light guide hole pitch P is constant, it is necessary to t 1 and t 2 minutes white bond the entire length l 'of the case body 3 long, it is difficult to further reduce the size.
【０００６】また、上記従来構造はいずれもケース体３
に発光素子１および受光素子２を接着する工程が必要で
あり、接着に時間がかからコストアップの要因となって
いた。Further, in all of the above conventional structures, the case body 3 is used.
In addition, a step of adhering the light emitting element 1 and the light receiving element 2 is required, and it takes a long time for adhering, which causes a cost increase.
【０００７】本発明は、上記の問題点を解決し、小型化
・低価格化の図れる反射型ホトインタラプタの製造方法
を提供することを目的とするものである。An object of the present invention is to solve the above-mentioned problems and to provide a method of manufacturing a reflective photointerrupter which can be made compact and inexpensive.
【０００８】[0008]
【課題を解決するための手段】本発明の反射型ホトイン
タラプタの製造方法は、発光素子と受光素子とを概同一
平面に並列配置してなる反射型ホトインタラプタの製造
方法において、熱硬化性樹脂によりそれぞれモールドさ
れてなる前記発光素子と受光素子とを形成する工程と、
該発光素子と受光素子とをそれぞれ素子固定用ピンにて
支持し、熱可塑性樹脂によるインサート射出成形にて２
次モールドして一体化する工程とを備え、前記成形時の
前記発光素子及び受光素子の発光・受光面側の素子固定
用ピン穴をそれぞれの透光窓としたことを特徴とするも
のである。A method for manufacturing a reflective photointerrupter according to the present invention is a method for manufacturing a reflective photointerrupter in which a light emitting element and a light receiving element are arranged in parallel on substantially the same plane. A step of forming the light emitting element and the light receiving element which are respectively molded by
Each of the light emitting element and the light receiving element is supported by a pin for fixing the element, and is subjected to insert injection molding with a thermoplastic resin.
Next, a step of molding and integrating is performed, and the pin holes for fixing the light emitting / light receiving surface of the light emitting element and the light receiving element at the time of molding are used as respective light transmitting windows. .
【０００９】[0009]
【作用】上記構成によれば、本発明の反射型ホトインタ
ラプタの製造方法は、発光素子と受光素子とをそれぞれ
素子固定用ピンにて支持し、熱可塑性樹脂によるインサ
ート射出成形にて２次モールドして一体化するため、素
子抜けが発生せず、しかも小型化が可能である。また、
従来のように、発光素子と受光素子とを接着剤を用いて
別部品であるケース体に組み込む必要がなく、製造工程
が簡略化され製造時間が短縮されるため、生産性が向上
し、コストダウンが図れる。According to the above construction, in the method of manufacturing the reflection type photo interrupter of the present invention, the light emitting element and the light receiving element are respectively supported by the element fixing pins, and the secondary molding is carried out by insert injection molding with a thermoplastic resin. Since they are integrated with each other, no element omission occurs and the size can be reduced. Also,
Unlike the conventional case, it is not necessary to incorporate the light emitting element and the light receiving element into a case body, which is a separate component, using an adhesive, and the manufacturing process is simplified and the manufacturing time is shortened. Can be down.
【００１０】さらに、成形時の発光素子及び受光素子の
発光・受光面側の素子固定用ピン穴をそれぞれの透光窓
として使用するので、別途透光窓を形成する必要がなく
なる。Further, since the pin holes for fixing the light emitting / receiving surface of the light emitting element and the light receiving element at the time of molding are used as the respective light transmitting windows, it is not necessary to separately form the light transmitting window.
【００１１】[0011]
【実施例】以下、図面を参照して本発明の一実施例を説
明する。An embodiment of the present invention will be described below with reference to the drawings.
【００１２】図１は、本発明の一実施例を説明するため
の図であり、図（ａ）および図（ｂ）はそれぞれ上面図
および断面図である。図２は、同実施例のインサート成
形時の概略を示す断面図である。FIG. 1 is a diagram for explaining an embodiment of the present invention, and FIGS. 1A and 1B are a top view and a cross-sectional view, respectively. FIG. 2 is a cross-sectional view showing an outline of insert molding of the same embodiment.
【００１３】本実施例は、発光素子と受光素子とを概同
一平面に並列配置してなる反射型ホトインタラプタの製
造方法であって、まず、エポキシ樹脂等の熱硬化性樹脂
によりそれぞれモールドされてなる発光素子１と受光素
子２とを形成し、該発光素子１と受光素子２とを、それ
ぞれ素子固定用ピン６ａ′，６ｂ′にて支持して、ＰＢ
Ｔ・ポリカーボネイト等の熱可塑性樹脂によるインサー
ト射出成形にて２次モールドを行い一体化するよう熱可
塑性樹脂ケース部５を形成し、前記インサート射出成形
時に前記素子固定用ピン６ａ′，６ｂ′により形成され
た素子固定用ピン穴６ａ，６ｂ（図１参照）のうち、前
記発光素子１及び受光素子２の発光・受光面側の素子固
定用ピン６穴ａをそれぞれの透光窓として使用してなる
構成である。This embodiment is a method of manufacturing a reflection type photointerrupter in which a light emitting element and a light receiving element are arranged in parallel on substantially the same plane. First, they are respectively molded with a thermosetting resin such as an epoxy resin. The light emitting element 1 and the light receiving element 2 are formed, and the light emitting element 1 and the light receiving element 2 are supported by the element fixing pins 6a 'and 6b', respectively.
A thermoplastic resin case 5 is formed by insert molding with a thermoplastic resin such as T / polycarbonate by insert molding, and is formed by the element fixing pins 6a 'and 6b' during the insert injection molding. Of the formed element fixing pin holes 6a and 6b (see FIG. 1), the element fixing pin 6 holes a on the light emitting / light receiving surface side of the light emitting element 1 and the light receiving element 2 are used as respective light transmitting windows. It is a configuration.
【００１４】このように、本発明の反射型ホトインタラ
プタの製造方法は、発光素子１と受光素子２とをそれぞ
れ素子固定用ピン６ａ′，６ｂ′にて支持し、熱可塑性
樹脂ケース部５を形成する熱可塑性樹脂によるインサー
ト射出成形にて２次モールドして一体化するため、素子
抜けが発生せず、しかも小型化が可能である。また、従
来のように、発光素子と受光素子とを接着剤を用いて別
部品であるケース体に組み込む必要がなく、製造工程が
簡略化され製造時間が短縮されるため、生産性が向上
し、コストダウンが図れる。As described above, according to the manufacturing method of the reflection type photo interrupter of the present invention, the light emitting element 1 and the light receiving element 2 are supported by the element fixing pins 6a 'and 6b', respectively, and the thermoplastic resin case portion 5 is attached. Since secondary molding is performed by insert injection molding using a thermoplastic resin to be formed and integration is performed, element omission does not occur and size reduction is possible. Further, unlike the conventional case, it is not necessary to incorporate the light emitting element and the light receiving element into a case body which is a separate component using an adhesive, which simplifies the manufacturing process and shortens the manufacturing time, thus improving the productivity. The cost can be reduced.
【００１５】さらに、インサート成形時に形成された発
光素子１及び受光素子２の発光・受光面側の素子固定用
ピン穴６ａをそれぞれの透光窓として使用するので、別
途透光窓を形成する必要がなくなる。Further, since the element fixing pin holes 6a on the light emitting / light receiving surface side of the light emitting element 1 and the light receiving element 2 formed at the time of insert molding are used as their respective light transmitting windows, it is necessary to separately form a light transmitting window. Disappears.
【００１６】[0016]
【発明の効果】以上のように、本発明の反射型ホトイン
タラプタの製造方法によれば、発光素子と受光素子とを
それぞれ素子固定用ピンにて支持し、熱可塑性樹脂によ
るインサート射出成形にて２次モールドして一体化する
ため、素子抜けが発生せず、しかも小型化が図れる。ま
た、従来のように、発光素子と受光素子とを接着剤を用
いて別部品であるケース体に組み込む必要がなく、製造
工程が簡略化され製造時間が短縮されるため、生産性が
向上し、コストダウンが図れる。As described above, according to the manufacturing method of the reflection type photo interrupter of the present invention, the light emitting element and the light receiving element are respectively supported by the element fixing pins, and the insert injection molding is performed by the thermoplastic resin. Since the secondary molding is performed and integrated, the element does not come off and the size can be reduced. Further, unlike the conventional case, it is not necessary to incorporate the light emitting element and the light receiving element into a case body which is a separate component using an adhesive, which simplifies the manufacturing process and shortens the manufacturing time, thus improving the productivity. The cost can be reduced.
【００１７】さらに、成形時の発光素子及び受光素子の
発光・受光面側の素子固定用ピン穴をそれぞれの透光窓
として使用するので、別途透光窓を形成する必要がな
い。Furthermore, since the element fixing pin holes on the light emitting / light receiving surface side of the light emitting element and the light receiving element at the time of molding are used as the respective light transmitting windows, it is not necessary to separately form a light transmitting window.
【図１】本発明の一実施例を説明するための図であり、
図（ａ）および図（ｂ）はそれぞれ上面図および断面図
である。FIG. 1 is a diagram for explaining an embodiment of the present invention,
Drawing (a) and Drawing (b) are a top view and a sectional view, respectively.
【図２】同実施例のインサート成形時の概略を示す断面
図である。FIG. 2 is a cross-sectional view showing an outline of insert molding of the same embodiment.
【図３】従来例を説明するための図であり、同図（ａ）
及び（ｂ）はそれぞれ上面図及び断面図である。FIG. 3 is a diagram for explaining a conventional example, and FIG.
And (b) are a top view and a sectional view, respectively.
【図４】他の従来例を説明するための図であり、同図
（ａ）及び（ｂ）はそれぞれ上面図及び断面図である。FIG. 4 is a diagram for explaining another conventional example, and FIGS. 4A and 4B are a top view and a cross-sectional view, respectively.
１ 発光素子 ２ 受光素子 ５ 熱可塑性樹脂ケース ６ａ，６ｂ 素子固定用ピン穴 ６ａ′，６ｂ′ 素子固定用ピン DESCRIPTION OF SYMBOLS 1 Light emitting element 2 Light receiving element 5 Thermoplastic resin case 6a, 6b Element fixing pin hole 6a ', 6b' Element fixing pin
Claims (1)
列配置してなる反射型ホトインタラプタの製造方法にお
いて、 熱硬化性樹脂によりそれぞれモールドされてなる前記発
光素子と受光素子とを形成する工程と、 該発光素子と受光素子とをそれぞれ素子固定用ピンにて
支持し、熱可塑性樹脂によるインサート射出成形にて２
次モールドして一体化する工程とを備え、 前記成形時の前記発光素子及び受光素子の発光・受光面
側の素子固定用ピン穴をそれぞれの透光窓としたことを
特徴とする反射型ホトインタラプタの製造方法。1. A method of manufacturing a reflective photointerrupter in which a light emitting element and a light receiving element are arranged in parallel on substantially the same plane, wherein the light emitting element and the light receiving element are molded by thermosetting resin respectively. The process and the light emitting element and the light receiving element are respectively supported by the element fixing pins, and the insert injection molding using a thermoplastic resin is used to
Next, the step of molding and unifying is performed, and the light-emitting element and the light-receiving element at the time of the molding are provided with pin holes for fixing the element on the light-emitting / light-receiving surface side, respectively, as transparent windows. Manufacturing method of interrupter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26860393A JPH088374B2 (en) | 1993-10-27 | 1993-10-27 | Method for manufacturing reflective photo interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26860393A JPH088374B2 (en) | 1993-10-27 | 1993-10-27 | Method for manufacturing reflective photo interrupter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06196750A JPH06196750A (en) | 1994-07-15 |
| JPH088374B2 true JPH088374B2 (en) | 1996-01-29 |
Family
ID=17460834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26860393A Expired - Fee Related JPH088374B2 (en) | 1993-10-27 | 1993-10-27 | Method for manufacturing reflective photo interrupter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH088374B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6762077B2 (en) | 2001-05-11 | 2004-07-13 | Melexis Nv | Integrated sensor packages and methods of making the same |
| US7060216B2 (en) | 2001-05-11 | 2006-06-13 | Melexis, Nv | Tire pressure sensors and methods of making the same |
-
1993
- 1993-10-27 JP JP26860393A patent/JPH088374B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06196750A (en) | 1994-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |