JPH01205105A - Detecting element structure for optical fiber - Google Patents
Detecting element structure for optical fiberInfo
- Publication number
- JPH01205105A JPH01205105A JP63029561A JP2956188A JPH01205105A JP H01205105 A JPH01205105 A JP H01205105A JP 63029561 A JP63029561 A JP 63029561A JP 2956188 A JP2956188 A JP 2956188A JP H01205105 A JPH01205105 A JP H01205105A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- holding sleeve
- sleeve
- bellows
- detecting 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.)
- Granted
Links
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
【発明の詳細な説明】
主粟五立科且分!
本発明は光電スイッチ等の投受光部として使用される光
ファイバの検出端構造に関する。[Detailed description of the invention] The main millet is five years old! The present invention relates to a detection end structure of an optical fiber used as a light emitting/receiving section of a photoelectric switch or the like.
従来夏肢玉
光の透過又は反射の有無により物体を検知し、電気信号
として出力する光電スイッチにおいて、特に小さな物体
を検出対象とする場合は、発光ダイオード等の投光素子
及びフォトトランジスタ等の受光素子から光ファイバを
検出位置に延長し、至近距離から検出を行う。Conventionally, in photoelectric switches that detect objects based on the presence or absence of transmission or reflection of summer light and output them as electrical signals, especially when detecting small objects, light emitting elements such as light emitting diodes and light receiving elements such as phototransistors are used. An optical fiber is extended from the element to the detection position, and detection is performed from close range.
この場合に、光ファイバの検出端を検出位置に向は定姿
勢で固定する必要があるため光ファイバの検出端には、
第4図に示すようなステンレス製の保持スリーブ(1)
が被せられる。この保持スリーブ(1)は、外周に雄ネ
ジ(2a)を形成した取付基体(2)の先端に嵌入・固
着される。光ファイバ(3)は、取付基体(2)を通し
て保護被覆(3a)を取った状態で保持スリーブ(1)
に挿通され、接着剤で固定される。この検出端構造は、
取付基体(2)を図示しないブラケットにネジ止め固定
して取付けられる。そして保持スリーブ(1)を適宜に
屈曲させることにより、光ファイバ(4)の先端を検出
位置に向けて固定・保持している。In this case, the detection end of the optical fiber must be fixed at the detection position in a fixed position.
Stainless steel retaining sleeve (1) as shown in Figure 4
is covered. This holding sleeve (1) is fitted into and fixed to the tip of a mounting base (2) having a male thread (2a) formed on its outer periphery. The optical fiber (3) is inserted into the retaining sleeve (1) with the protective coating (3a) removed through the mounting base (2).
is inserted and fixed with adhesive. This detection end structure is
The mounting base (2) is fixed to a bracket (not shown) with screws. By appropriately bending the holding sleeve (1), the tip of the optical fiber (4) is fixed and held toward the detection position.
(°゛と る7
上記光ファイバの検出端構造を、光電スイッチ等のアタ
ッチメントとして使用する場合、保持スリーブの長さは
、取付位置及び検出対象に応じて異なったものが要求さ
れる。(°゛ Toru 7) When the above optical fiber detection end structure is used as an attachment for a photoelectric switch or the like, the length of the holding sleeve is required to vary depending on the mounting position and the object to be detected.
しかし保持スリーブはステンレスで製作されているため
取付作業に用いる一般的な切断工具では、切断すること
ができない。仮りに、取付現場において無理に切断した
としても切口が異常に変形し、その際の圧力によって光
ファイバの光伝送機能が損われて使用できなくなる。こ
のため、従来は保持スリーブの長さの異なるアタッチメ
ントを、予め多種類製作しておき、ユーザーの要望に応
じて出荷していた。However, since the retaining sleeve is made of stainless steel, it cannot be cut with common cutting tools used for installation work. Even if the optical fiber is forcibly cut at the installation site, the cut end will be abnormally deformed, and the pressure at that time will damage the optical transmission function of the optical fiber, making it unusable. For this reason, conventionally, a wide variety of attachments with holding sleeves of different lengths have been manufactured in advance and shipped according to user requests.
しかし、このように多種類の光電スイッチ用のアタッチ
メントを製作しておくことは、製作コスト並びに管理コ
ストを高くしてしまう。またユーザーにとっても、使用
箇所に合わせて購入することは繁雑である。そして実際
に取付けたとき、寸法が合わなかったとすると、別の寸
法のアタッチメントを取寄せなければならないという事
態も起こる。However, producing attachments for so many types of photoelectric switches increases production costs and management costs. Also, it is complicated for the user to purchase according to the place of use. If the dimensions do not match when the attachment is actually installed, a situation may arise in which an attachment with a different dimension must be ordered.
そこで本発明は取付現場において保持スリーブの長さ調
整が容易にできる光ファイバの検出端構造の提供を目的
とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an optical fiber detection end structure that allows the length of a holding sleeve to be easily adjusted at an installation site.
−η°、−
本発明が提供する光ファイバの検出端構造は、投光素子
又は受光素子から検出位置に延長されるプラスチック製
光ファーイバにおいて、その検出端に、硬質プラスチッ
クの筒体であって、外周面又は内周面に蛇腹状の溝を形
成した保持スリーブを外嵌したことを特徴とする。-η°, - The detection end structure of an optical fiber provided by the present invention is such that, in a plastic optical fiber extended from a light emitting element or a light receiving element to a detection position, a hard plastic cylinder is attached to the detection end of the plastic optical fiber. A retaining sleeve having a bellows-shaped groove formed on the outer circumferential surface or inner circumferential surface is fitted onto the outer circumferential surface.
作置
上記光ファイバの検出端構造は、保持スリーブが硬質プ
ラスチックであるため、取付現場で用いられる一般的な
切断工具で光の伝送特性を損わずに容易に切断すること
ができ、取付現場における長さ調整が可能となる。Installation The detection end structure of the above optical fiber has a holding sleeve made of hard plastic, so it can be easily cut with a common cutting tool used at the installation site without damaging the light transmission characteristics. The length can be adjusted.
この保持スリーブには蛇腹状の溝が形成されているため
容易に曲げることができ、その先端を検出位置に精度良
く合せることができる。この曲げ形状は保持スリーブが
硬質プラスチックであるため、そのまま維持される。Since the holding sleeve is formed with a bellows-shaped groove, it can be easily bent, and its tip can be precisely aligned with the detection position. This bent shape is maintained because the retaining sleeve is made of hard plastic.
皇見孤 本考案を一実施例について説明する。Komiko The present invention will be described with reference to one embodiment.
第1図に示す光ファイバの検出端構造(4)において、
(5)は筒状の取付基体で外周面に雄ネジ(6)が形成
されている。(7)は硬質・耐熱性プラスチックの保持
スリーブで、その外周面には蛇腹状の溝(8)が形成さ
れ、その基端を取付基体(6)の先端開口(6a)に嵌
着し、接着剤で固定している。ここで蛇腹状の溝(8)
は、環状溝を所定ピッチで形成する他、ネジ形状の連続
した!l!I旋溝としてもよい。(9)はプラスチック
製の光学ファイバで、保護被覆(10)を剥離した先端
部分を取付基体(5)を通して、保持スリーブ(7)内
に挿通している。この光ファイバ(9)は、保持スリー
ブ(7)及び取付基体(5)に接着剤(11)で、固着
されている。なおこの光学ファイバ(9)の図示しない
後端は、光電スイッチ等の投光素子又は受光素子と光学
的に結合される。In the detection end structure (4) of the optical fiber shown in FIG.
(5) is a cylindrical mounting base having a male thread (6) formed on its outer peripheral surface. (7) is a holding sleeve made of hard heat-resistant plastic, which has a bellows-shaped groove (8) formed on its outer circumferential surface, and its base end is fitted into the tip opening (6a) of the mounting base (6); It is fixed with adhesive. Here, the bellows-shaped groove (8)
In addition to forming annular grooves at a predetermined pitch, continuous screw-shaped! l! It may also be an I-swivel groove. Reference numeral (9) denotes a plastic optical fiber, the tip of which has been stripped of its protective coating (10), passes through the mounting base (5), and is inserted into the holding sleeve (7). This optical fiber (9) is fixed to the holding sleeve (7) and the mounting base (5) with an adhesive (11). Note that the rear end (not shown) of this optical fiber (9) is optically coupled to a light projecting element or a light receiving element such as a photoelectric switch.
上記光ファイバの検出端構造(4)は、その取付基体(
5)を図示しない取付ブラケットにネジ止めすることに
より取付位置に固定される。The detection end structure (4) of the above-mentioned optical fiber is attached to its mounting base (
5) is fixed at the mounting position by screwing it to a mounting bracket (not shown).
そして検出位置までの距離に合せて、第1図に一点鎖線
で示す任意の位置で、保持スリーブ(7)を光学ファイ
バ(9)と共に切断する。Then, the holding sleeve (7) is cut together with the optical fiber (9) at an arbitrary position shown by a dashed line in FIG. 1 in accordance with the distance to the detection position.
この切断は、ニッパ−やカッターナ・「フ等の一般的な
切断器具を用いて行うことができる。そして第2図に示
すように、この切断端が検出位置に向くように保持スリ
ーブ(7)を屈曲させれば、取付作業は終了する。この
屈曲は、保持スリーブ(7)に蛇腹状の溝(8)が形成
されているため容易に行え、保持スリーブ(7)が硬質
であるため、その屈曲形状は維持される。This cutting can be done using a common cutting tool such as nippers or a cutter.Then, as shown in FIG. The installation work is completed by bending the retaining sleeve (7).This bending can be easily done because the retaining sleeve (7) has a bellows-shaped groove (8), and since the retaining sleeve (7) is hard. Its bent shape is maintained.
また保持スリーブ(7)の溝の形成は第3図に示すよう
に、外側の溝(8a)と対応するように内側にも溝(8
b)を形成して、屈曲性を高めることもできる。また内
周面にのみ溝を形成することもできる。In addition, the grooves of the holding sleeve (7) are formed on the inside so as to correspond to the outside grooves (8a), as shown in FIG.
b) can also be formed to increase flexibility. Alternatively, the grooves may be formed only on the inner circumferential surface.
なお上記実施例では、保護被覆を剥いだ光学ファイバ(
9)を、保持スリーブ(7)内に挿入固定していたが、
保護被覆をつけたまま挿入固定してもよい。In the above example, the optical fiber with its protective coating removed (
9) was inserted and fixed into the holding sleeve (7), but
It may be inserted and fixed with the protective coating still on.
30亀の」L艮
本発明によれば、保持スリーブによって、光ファイバを
任意の検出位置に向くように曲げた状態で保持する光フ
ァイバの検出端構造において、保持スリーブを取付時に
容易に切断して長さ調整をすることができ、しかもその
屈曲性及び屈曲形状の維持機能を損うことがない。According to the present invention, in an optical fiber detection end structure in which an optical fiber is held in a bent state so as to face an arbitrary detection position by a holding sleeve, the holding sleeve can be easily cut at the time of installation. The length can be adjusted by adjusting the length without impairing its flexibility and ability to maintain the bent shape.
従って多種類の長さの保持スリーブを用意する必要がな
くなり、製造コスト、管理コストを低減化し、取付作業
を極めて簡便に行えるようになる。Therefore, it is no longer necessary to prepare holding sleeves of various lengths, reducing manufacturing costs and management costs, and making the installation work extremely easy.
第1図は本発明の一実施例である光ファイバの検出端構
造を示す断面図、第2図は第1図に示す検出端構造の検
出端部分の屈曲状態を示す正面図である。
第3図は本発明の他の実施例を示す検出端部分の断面図
である。
第4図は従来の光ファイバの検出端構造を示す断面図で
ある。
(4)−・光ファイバの検出端構造、
(7) −保持スリーブ、
(8) (8a) (8b) −・蛇腹状の溝、(
9)〜光ファイバ。FIG. 1 is a sectional view showing a detection end structure of an optical fiber according to an embodiment of the present invention, and FIG. 2 is a front view showing a bent state of the detection end portion of the detection end structure shown in FIG. FIG. 3 is a sectional view of the detection end portion showing another embodiment of the present invention. FIG. 4 is a sectional view showing the detection end structure of a conventional optical fiber. (4) - Optical fiber detection end structure, (7) - Holding sleeve, (8) (8a) (8b) - Bellows-shaped groove, (
9) ~ Optical fiber.
Claims (1)
プラスチック製光ファイバにおいて、その検出端に、硬
質プラスチックの筒体であって、外周面又は内周面に蛇
腹状の溝を形成した保持スリーブを外嵌したことを特徴
とする光ファイバの検出端構造。(1) In a plastic optical fiber extending from the light emitting element or the light receiving element to the detection position, the detection end thereof is a hard plastic cylinder with a bellows-shaped groove formed on the outer or inner circumferential surface. An optical fiber detection end structure characterized by having a retaining sleeve fitted onto the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63029561A JP2702493B2 (en) | 1988-02-10 | 1988-02-10 | Optical fiber detection end structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63029561A JP2702493B2 (en) | 1988-02-10 | 1988-02-10 | Optical fiber detection end structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01205105A true JPH01205105A (en) | 1989-08-17 |
| JP2702493B2 JP2702493B2 (en) | 1998-01-21 |
Family
ID=12279550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63029561A Expired - Lifetime JP2702493B2 (en) | 1988-02-10 | 1988-02-10 | Optical fiber detection end structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2702493B2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134026U (en) * | 1983-02-25 | 1984-09-07 | 三菱レイヨン株式会社 | Directional light sensor |
| JPS61259207A (en) * | 1985-05-14 | 1986-11-17 | Mitsubishi Rayon Co Ltd | Optical conductor and its production and cylinder body used therfor |
-
1988
- 1988-02-10 JP JP63029561A patent/JP2702493B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59134026U (en) * | 1983-02-25 | 1984-09-07 | 三菱レイヨン株式会社 | Directional light sensor |
| JPS61259207A (en) * | 1985-05-14 | 1986-11-17 | Mitsubishi Rayon Co Ltd | Optical conductor and its production and cylinder body used therfor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2702493B2 (en) | 1998-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| USD494984S1 (en) | Computer icon for transmitted light illumination functions of a microscope system on a portion of a display panel or microscope display | |
| USD895730S1 (en) | Decal for a work machine | |
| US6416233B2 (en) | Optical fiber connector | |
| US4696537A (en) | Connector for fiber optic cables | |
| USD482040S1 (en) | Portion of a computer screen with an icon image | |
| US5136672A (en) | Fiber protector | |
| AU2003233059A1 (en) | Device for an optical fibre connection | |
| PT979332E (en) | PROCESS FOR THE MANUFACTURE OF PRE-MANUFACTURED CONSTRUCTION ELEMENTS AND PRE-SPROUTED WORK PRODUCED WITH THE FOLLOWING ELEMENTS | |
| GB2143468A (en) | Hose midway holder | |
| EP0278507B1 (en) | Optical semiconductor module | |
| USD1086558S1 (en) | Set of makeup stickers | |
| USD498403S1 (en) | Screw guide | |
| ES2161353T3 (en) | CUTTING PROCEDURE AND ROTATING CUTTING TOOL. | |
| JPH01205105A (en) | Detecting element structure for optical fiber | |
| AU4117597A (en) | Telescopic tube, in particular for sprinkler systems | |
| JP4188217B2 (en) | Optical fiber unit and optical fiber sensor | |
| USD470504S1 (en) | Computer screen with an icon | |
| JPH0613462Y2 (en) | Optical fiber attachment for photoelectric sensor | |
| USD457529S1 (en) | Computer screen with an icon | |
| USD985614S1 (en) | Computer monitor or portion thereof with computer generated building icon | |
| GB2292467A (en) | Optical fibre connector ferrule holder with tines | |
| JP3657711B2 (en) | Light emitting element module and light emitting element module holder | |
| JPH08206907A (en) | Drill tool | |
| USD450836S1 (en) | Applicator tip having a protective ring | |
| IT8223466A1 (en) | BRAKE PAD WITH SENSOR FOR A WEAR INDICATOR DEVICE |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081003 Year of fee payment: 11 |
|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20081003 Year of fee payment: 11 |