JPH0112357Y2 - - Google Patents
Info
- Publication number
- JPH0112357Y2 JPH0112357Y2 JP1982197746U JP19774682U JPH0112357Y2 JP H0112357 Y2 JPH0112357 Y2 JP H0112357Y2 JP 1982197746 U JP1982197746 U JP 1982197746U JP 19774682 U JP19774682 U JP 19774682U JP H0112357 Y2 JPH0112357 Y2 JP H0112357Y2
- Authority
- JP
- Japan
- Prior art keywords
- hood
- main body
- lens
- hood body
- hole
- 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
Links
- 238000012856 packing Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000010137 moulding (plastic) Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Switches Operated By Changes In Physical Conditions (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Description
【考案の詳細な説明】
〔技術分野〕
本考案は対向式、回帰反射式などの光電スイツ
チの構造に関するものである。[Detailed Description of the Invention] [Technical Field] The present invention relates to the structure of a photoelectric switch such as a facing type or a retroreflection type.
従来の光電スイツチは、レンズが露出している
ので、レンズの汚れが許容値を越えると動作特性
が狂う場合もあり、レンズ清掃を要するが、レン
ズが曲面のため充分ふきとり難いこと。またフー
ドを本体ケースに締付ける場合パツキンを介在さ
せるのでフードの四隅をねじどめするとねじのな
いフードの中央部には充分な締付力が加わらずシ
ールが不完全になるということがあつた。
Conventional photoelectric switches have exposed lenses, so if the lens gets dirty beyond the allowable level, its operating characteristics may be disrupted, and the lens needs to be cleaned, but the curved surface of the lens makes it difficult to wipe it off thoroughly. In addition, when tightening the hood to the main body case, gaskets are used, so if the four corners of the hood are screwed, sufficient tightening force is not applied to the center of the hood where there are no screws, resulting in an incomplete seal.
本考案は上記従来の事情に着目し、その改善の
ためなされたものである。
The present invention has been made in order to improve upon the above-mentioned conventional circumstances.
以下本考案の実施例について第1図乃至第2図
を参照して説明する。
Embodiments of the present invention will be described below with reference to FIGS. 1 and 2.
本体1は合成樹脂の塑造成型により箱形に形成
してある。そして開口部2の口縁内周に段部3を
設け、口縁に係合孔4,5を穿設してある。 The main body 1 is formed into a box shape by plastic molding of synthetic resin. A step 3 is provided on the inner periphery of the opening 2, and engagement holes 4, 5 are bored in the opening.
6はプリント板で、発光素子7(動作表示用)、
光電素子8(発・受光素子)を含む光電回路を実
装してある。9,10は枠形のパツキンである。
11はフード体で、光電素子8を臨ませる孔12
を設けてあり、また上側縁に係合突部13、同じ
く下側縁に係合突部13が設けてあり、嵌合孔1
4,14が孔12の両側に設けてある。 6 is a printed board, with light emitting element 7 (for displaying operation),
A photoelectric circuit including a photoelectric element 8 (light emitting/receiving element) is mounted. 9 and 10 are frame-shaped packings.
11 is a hood body with a hole 12 through which the photoelectric element 8 is exposed.
Also, an engaging protrusion 13 is provided on the upper edge, and an engaging protrusion 13 is provided on the lower edge, and the fitting hole 1
4 and 14 are provided on both sides of the hole 12.
レンズ体15は透明合成樹脂の塑造成型によ
り、レンズ部16と枠部17、突部18が一体に
形成してある。 The lens body 15 has a lens portion 16, a frame portion 17, and a protrusion 18 integrally formed by plastic molding of transparent synthetic resin.
レンズカバー19は透明樹脂材料で平板状に形
成してあり、周縁突起20,20…を設けてあ
る。 The lens cover 19 is made of a transparent resin material and is formed into a flat plate shape, and is provided with peripheral protrusions 20, 20, . . . .
組立について説明すると、突部18を嵌合孔1
4よりやや大きくして第1図のように圧入・嵌合
によつて固着するが、やや小さくして嵌挿後に突
出した先端を熱変形させて固着してもよい。そし
て両者間に10を介置してシールしている。 To explain the assembly, insert the protrusion 18 into the fitting hole 1.
Although it is made slightly larger than 4 and fixed by press-fitting and fitting as shown in FIG. 1, it is also possible to make it slightly smaller and fixing by thermally deforming the protruding tip after fitting and insertion. 10 is interposed between the two to form a seal.
そしてプリント板6を先に本体1内に挿入する
か或はフード体11の孔12に光電素子8を臨ま
した状態で相互間の隙間を樹脂で封着して結合状
態で本体1に内挿してもよく、係合突部13,1
3を係合孔4,4に係止する。そしてパツキン9
を段部3に当接し、フード体11の後面周縁にパ
ツキン9の前面を当接する。そしてレンズ体1
5、フード体11、パツキン9,10の全体を本
体1に押付け状態で、レンズカバー19をレンズ
部16に覆うように当接させつつ、周縁突起2
0,20を係合孔5,5に嵌合・係止する。 Then, the printed board 6 is first inserted into the main body 1, or the gap between them is sealed with resin with the photoelectric element 8 facing the hole 12 of the hood body 11, and the bonded state is inserted into the main body 1. The engaging protrusion 13,1 may also be
3 into the engagement holes 4, 4. And Patsukin 9
is brought into contact with the stepped portion 3, and the front surface of the packing 9 is brought into contact with the peripheral edge of the rear surface of the hood body 11. and lens body 1
5. With the entire hood body 11 and gaskets 9 and 10 pressed against the main body 1, and while bringing the lens cover 19 into contact with the lens portion 16 so as to cover it, press the peripheral protrusion 2.
0 and 20 are fitted and locked into the engagement holes 5 and 5.
このようにパツキン9を本体1の口縁の係合孔
4に係止したフード体で圧接してシールすること
になり、フード体11の全面によりパツキン9を
均一に押圧するからシールが完全となる。またレ
ンズカバー19でもパツキン9を更に押圧方向に
本体1に係合するので一層シール効果も大きくな
る。 In this way, the seal 9 is pressed into contact with the hood body that is locked in the engagement hole 4 on the mouth edge of the main body 1, and the seal is sealed.Since the seal 9 is pressed uniformly by the entire surface of the hood body 11, the seal is completed. Become. Further, since the lens cover 19 also engages the gasket 9 with the main body 1 in the pressing direction, the sealing effect is further enhanced.
また平板状なのでレンズカバー19が汚れても
簡単にふきとれる。 Furthermore, since it is flat, even if the lens cover 19 becomes dirty, it can be easily wiped off.
以上説明したように本考案光電スイツチによれ
ば、一端開口の光電スイツチ本体1内に光電素子
8を一端に実装したプリント板6を収納すると共
に本体1開口部2の口縁の内周段部3にパツキン
9を介してフード体11を内周口縁に配設し、前
記光電素子8をフード体11の孔12の後端に配
設し、前記フード体11に前面周縁にパツキン1
0を介してレンズ体15を配設すると共にレンズ
体15の後面に突設した突部18を前記フード体
11に嵌合して両者を固着状態でフード体11の
係合突部13を本体口縁の係合孔4に係止し、前
記レンズ体15の前面を覆う如く当接した透明の
平板状のレンズカバー19の周縁突起20,20
を前記本体開口部2口縁係合孔5,5に係止して
なることを特徴とする構成としており、パツキン
9がフード体11の全面にて均一に押圧されるこ
ととなつてシール効果が充分得られ、またレンズ
体15の前面のレンズカバー19が平板状なので
容易かつ確実に汚れを除去できるもので保守が容
易である。
As explained above, according to the photoelectric switch of the present invention, the printed board 6 on which the photoelectric element 8 is mounted at one end is housed in the photoelectric switch main body 1 having an opening at one end, and the inner circumferential step on the edge of the opening 2 of the main body 1 A hood body 11 is disposed on the inner periphery of the hood body 11 through a gasket 9, the photoelectric element 8 is disposed on the rear end of the hole 12 of the hood body 11, and a gasket 1 is disposed on the front periphery of the hood body 11.
The lens body 15 is disposed through the lens body 15, and the protrusion 18 protruding from the rear surface of the lens body 15 is fitted into the hood body 11, and the engagement protrusion 13 of the hood body 11 is attached to the main body while the two are fixed together. Peripheral protrusions 20, 20 of a transparent flat lens cover 19 that is engaged with the engagement hole 4 of the mouth edge and abuts to cover the front surface of the lens body 15.
are engaged with the mouth edge engagement holes 5, 5 of the main body opening 2, and the gasket 9 is pressed uniformly over the entire surface of the hood body 11, resulting in a sealing effect. Furthermore, since the lens cover 19 on the front surface of the lens body 15 is flat, dirt can be easily and reliably removed, and maintenance is easy.
第1図乃至第2図は本考案光電スイツチの実施
例を示し、第1図は縦断面図、第2図は分解斜視
図である。
1:本体、2:開口部、3:段部、4,5:係
合孔、6:プリント板、8:光電素子、9,1
0:パツキン、11:フード体、12:孔、1
3:係合突部、14:嵌合孔、15:レンズ体、
18:突部、19:レンズカバー、20:周縁突
起。
1 and 2 show an embodiment of the photoelectric switch of the present invention, with FIG. 1 being a longitudinal sectional view and FIG. 2 being an exploded perspective view. 1: Main body, 2: Opening, 3: Step, 4, 5: Engagement hole, 6: Printed board, 8: Photoelectric element, 9, 1
0: Packing, 11: Hood body, 12: Hole, 1
3: Engagement protrusion, 14: Fitting hole, 15: Lens body,
18: Projection, 19: Lens cover, 20: Peripheral projection.
Claims (1)
端に実装したプリント板を収納すると共に本体開
口部の口縁の内周段部にパツキンを介してフード
体を内周口縁に配設し、前記光電素子をフード体
の孔の後端に配設し、前記フード体の前面周縁に
パツキンを介してレンズ体を配設すると共にレン
ズ体の後面に突設した突部を前記フード体に嵌合
して両者を固着状態でフード体の係合突部を本体
口縁の係合孔に係止し、前記レンズ体の前面を覆
う如く当接した透明の平板状のレンズカバーの周
縁突起を前記本体開口部口縁係合孔に係止してな
ることを特徴とする光電スイツチ。 A printed board with a photoelectric element mounted on one end is housed in a photoelectric switch main body having an opening at one end, and a hood body is disposed on the inner circumferential step of the mouth edge of the main body opening via a packing. The element is disposed at the rear end of the hole of the hood body, a lens body is disposed on the front periphery of the hood body via a gasket, and a protrusion protruding from the rear surface of the lens body is fitted into the hood body. With the two in a fixed state, the engaging protrusion of the hood body is engaged with the engaging hole of the mouth of the main body. A photoelectric switch characterized by being engaged with an opening edge engagement hole.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19774682U JPS59104434U (en) | 1982-12-28 | 1982-12-28 | photoelectric switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19774682U JPS59104434U (en) | 1982-12-28 | 1982-12-28 | photoelectric switch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS59104434U JPS59104434U (en) | 1984-07-13 |
JPH0112357Y2 true JPH0112357Y2 (en) | 1989-04-11 |
Family
ID=30423226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19774682U Granted JPS59104434U (en) | 1982-12-28 | 1982-12-28 | photoelectric switch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59104434U (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS514043U (en) * | 1974-06-24 | 1976-01-13 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55158132U (en) * | 1979-04-28 | 1980-11-13 | ||
JPS6235238Y2 (en) * | 1981-03-16 | 1987-09-08 |
-
1982
- 1982-12-28 JP JP19774682U patent/JPS59104434U/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS514043U (en) * | 1974-06-24 | 1976-01-13 |
Also Published As
Publication number | Publication date |
---|---|
JPS59104434U (en) | 1984-07-13 |
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