JPS5936221Y2 - Optical sensor for sewing machines that detects the presence or absence of fabric - Google Patents
Optical sensor for sewing machines that detects the presence or absence of fabricInfo
- Publication number
- JPS5936221Y2 JPS5936221Y2 JP1979038968U JP3896879U JPS5936221Y2 JP S5936221 Y2 JPS5936221 Y2 JP S5936221Y2 JP 1979038968 U JP1979038968 U JP 1979038968U JP 3896879 U JP3896879 U JP 3896879U JP S5936221 Y2 JPS5936221 Y2 JP S5936221Y2
- Authority
- JP
- Japan
- Prior art keywords
- fabric
- optical sensor
- absence
- sewing machine
- optical fiber
- 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
Landscapes
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Sewing Machines And Sewing (AREA)
Description
【考案の詳細な説明】
本案は光フアイバーケーブルを利用して外乱光特性等を
改良したミシン用光センサーに関する考案である。[Detailed Description of the Invention] This invention is an invention related to an optical sensor for sewing machines that uses an optical fiber cable to improve disturbance light characteristics.
既存のこの種センサーは、特に外乱光に対する誤動作が
問題であり、そのため赤外線変調方式とし、またフィル
ターや特殊な弁別回路を採用する等種々の対策が講しら
れていた。Existing sensors of this type suffer from malfunctions, especially in response to ambient light, so various countermeasures have been taken, such as using an infrared modulation method and using filters and special discrimination circuits.
しかしながら、これら手段を講じた結果得られる耐外乱
光特性は、コストの加重の割には十分なものとは言えず
、殊に誤動作が致命的な彰影響を与える類の装置にあっ
ては、更に確実に作動しかつ感度の良好なセンサーの実
現が望まれていた。However, the anti-disturbance light characteristics obtained as a result of taking these measures cannot be said to be sufficient considering the added cost, especially in the case of devices where malfunction can have a fatal effect. It has been desired to realize a sensor that operates more reliably and has better sensitivity.
本案は上述の事情に鑑み開発されたもので、投光素子及
び受光素子とミシンの押え金に設けた通孔１３Ａとの間
を夫々光フアイバーケーブルで光学的に接続し、且つこ
れらの接続部をカバ一体等で覆うことによって外乱光特
性の著しい改善を図ったものである。This project was developed in view of the above-mentioned circumstances, and includes an optical fiber cable that optically connects the light emitting element and the light receiving element to the through hole 13A provided in the presser foot of the sewing machine. By covering the light with a cover or the like, the disturbance light characteristics are significantly improved.
以下本案に係る生地の有無を検出するミシン用センサー
につき説明するに、その構成は、赤外線、可視光線等の
投光素子ＩＡ及び受光素子１Ｂに夫々光フアイバーケー
ブル２の一方の開放端２Ａを臨ませ、これらをカバ一体
４によって覆い、且つ前記光フアイバーケーブル２各々
の他方の開放端２Ｂをミシンの押え金１３に設けた通孔
１３Ａに臨ませ、これらをキャップ１４で覆うようにし
たことを特徴とする。The sensor for a sewing machine that detects the presence or absence of fabric according to the present invention will be described below. Its configuration is such that one open end 2A of the optical fiber cable 2 is connected to a light emitting element IA for emitting infrared rays, visible light, etc. and a light receiving element 1B, respectively. The other open end 2B of each of the optical fiber cables 2 is made to face the through hole 13A provided in the presser foot 13 of the sewing machine, and these are covered with a cap 14. Features.
図面は本案の光センサーを自動縫いミシンに於ける生地
端検知用センサーに利用した場合を示すもので、以下図
示実施例に基づき更に説明する。The drawings show a case in which the optical sensor of the present invention is used as a sensor for detecting fabric edges in an automatic sewing machine, and will be further explained below based on the illustrated embodiments.
第１図は、本案光センサーの要部を示す断面図である。FIG. 1 is a sectional view showing the main parts of the optical sensor of the present invention.
図中１は反射型のセンサ一本体を示し、投光素子及び受
光素子が内装されている。In the figure, reference numeral 1 indicates a reflective sensor body, in which a light emitting element and a light receiving element are installed.
また４はセンサ一本体とケーブル端を被うカバ一体であ
る。Reference numeral 4 designates a cover that covers the sensor body and the cable end.
第２図及び第３図、本案光センサーを自動縫いミシンに
取付けた状態を示す図であり、図に於いて、１０はミシ
ン本体、１１は布ガイド板、１２はカバープレート、１
３は押え金を示す。2 and 3 are diagrams showing the state in which the optical sensor of the present invention is attached to an automatic sewing machine. In the figures, 10 is the sewing machine body, 11 is a cloth guide plate, 12 is a cover plate,
3 indicates the presser foot.
図中本案光センサーの取付けは、押え金１３等適宜個所
に通孔１３Ａを設け、これに光フアイバーケーブル２の
一端をその開放面が被検出物（図示実施例の場合は生地
）の方を向くように固着する。To attach the optical sensor according to the present invention shown in the figure, a through hole 13A is provided at an appropriate location such as the presser foot 13, and one end of the optical fiber cable 2 is connected through the hole 13A with the open side facing the object to be detected (the fabric in the case of the illustrated embodiment). Attach it facing the direction.
このとき外乱光の影響を更に除くために、当該固着部位
をキャップ１４で覆う。At this time, the fixed portion is covered with a cap 14 in order to further eliminate the influence of ambient light.
いま生地が布ガイド板１１から押え金１３に差し込まれ
ると、該生地先端が光フアイバーケーブル２先端から投
光される光軸を遮断し、ミシン本体が始動し、逆に生地
が縫製後送られてなくなると本案センサーが働いてミシ
ン本体が停止する。When the fabric is inserted into the presser foot 13 from the fabric guide plate 11, the tip of the fabric blocks the optical axis emitted from the tip of the optical fiber cable 2, the sewing machine starts, and conversely, the fabric is fed after sewing. When it runs out, the main sensor will work and the sewing machine will stop.
本案に係る光センサーの構成は叙上の如くであるが、そ
の構成から次のような特有の効果が生ずる。The configuration of the optical sensor according to the present invention is as described above, and the following unique effects arise from the configuration.
本案は光フアイバーケーブルの先端を被検出部に臨ませ
、いわば光フアイバーケーブル先端をセンサーそのもの
のように使用できるから、従来センサ一本体の形状から
くる制約のため取付不能であった個所にも、何ら問題な
く取付けることができ、しかも該ケーブルそのものの径
は小さく、被検出部近傍にまで近づけ固定することが可
能であるから、外乱光の影響を除くことが容易である。In this case, the tip of the optical fiber cable faces the detected part, so that the tip of the optical fiber cable can be used as the sensor itself, so it can be installed in places where conventional sensors could not be installed due to restrictions due to the shape of the sensor body. The cable can be installed without any problems, and since the cable itself has a small diameter and can be fixed close to the detected part, it is easy to eliminate the influence of ambient light.
また光フアイバーケーブルはフレキシブルであるから、
振動の生ずる個所にも耐振動を考慮することなく取付け
ることができる。Also, fiber optic cables are flexible, so
It can be installed in locations where vibration occurs without considering vibration resistance.
更らに従来のセンサーはビーム巾を狭くするため何らか
の集束手段を講じていたが、本案は光源がどのようなも
のであれケーブル径でそのビーム巾が決定され、しかも
ケーブルの先端は被検出部に充分近づけることが容易だ
がら、格別の集束手段を必要としない。Furthermore, conventional sensors take some kind of focusing means to narrow the beam width, but in this case, no matter what the light source is, the beam width is determined by the cable diameter, and the tip of the cable is close to the detected area. does not require any special focusing means.
また本案は、外乱光特性、ビーム中等センサーの性能に
直接に関与する点を、光フアイバーケーブルだけに依拠
しているから、格別センサ一本体の性能の向上を図る必
要がなく、従来と同等の性能を安価に提供できる。In addition, since this method relies only on the optical fiber cable for disturbance light characteristics, beams, etc. that are directly related to the performance of the sensor, there is no need to specifically improve the performance of the sensor itself, and it is equivalent to the conventional method. Performance can be provided at low cost.
図面は本案の一実施例を示すもので、第１図は本案光セ
ンサーの要部の断面図、第２図は本案を自動縫いミシン
に適用した場合の取付状態図、第３図は同じく断面図で
ある。The drawings show one embodiment of the present invention. Figure 1 is a cross-sectional view of the main parts of the optical sensor of the present invention, Figure 2 is an installation state diagram when the present invention is applied to an automatic sewing machine, and Figure 3 is a cross-sectional view of the same. It is a diagram.
Claims (1)
夫々光フアイバーケーブル２の一方の開放端２Ａを臨ま
せ、これらをカバ一体４によって覆い、且つ前記光フア
イバーケーブル２各々の他方の開放端２Ｂをミシンの押
え金１３に設けた通孔１３Ａに臨ませ、これらをキャッ
プ１４で覆うようにした、生地の有無を検出するミシン
用光センサ−。One open end 2A of the optical fiber cable 2 is made to face the light emitting element 1A and the light receiving element 1B for infrared rays, visible light, etc., and these are covered by a cover unit 4, and the other open end of each of the optical fiber cables 2 is This optical sensor for a sewing machine detects the presence or absence of fabric, in which a through hole 13A provided in a presser foot 13 of the sewing machine is exposed, and these are covered with a cap 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979038968U JPS5936221Y2 (en) | 1979-03-26 | 1979-03-26 | Optical sensor for sewing machines that detects the presence or absence of fabric |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979038968U JPS5936221Y2 (en) | 1979-03-26 | 1979-03-26 | Optical sensor for sewing machines that detects the presence or absence of fabric |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55138605U JPS55138605U (en) | 1980-10-02 |
| JPS5936221Y2 true JPS5936221Y2 (en) | 1984-10-05 |
Family
ID=28904919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979038968U Expired JPS5936221Y2 (en) | 1979-03-26 | 1979-03-26 | Optical sensor for sewing machines that detects the presence or absence of fabric |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5936221Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58117285U (en) * | 1982-01-12 | 1983-08-10 | ジューキ株式会社 | Sewing machine control device |
| JPS5951579U (en) * | 1982-09-28 | 1984-04-05 | ジューキ株式会社 | Sewing machine control device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4221837Y1 (en) * | 1964-07-23 | 1967-12-14 | ||
| JPS4325999Y1 (en) * | 1966-10-28 | 1968-10-30 |
-
1979
- 1979-03-26 JP JP1979038968U patent/JPS5936221Y2/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4221837Y1 (en) * | 1964-07-23 | 1967-12-14 | ||
| JPS4325999Y1 (en) * | 1966-10-28 | 1968-10-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55138605U (en) | 1980-10-02 |
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