JPS62165551U - - Google Patents
Info
- Publication number
- JPS62165551U JPS62165551U JP4270087U JP4270087U JPS62165551U JP S62165551 U JPS62165551 U JP S62165551U JP 4270087 U JP4270087 U JP 4270087U JP 4270087 U JP4270087 U JP 4270087U JP S62165551 U JPS62165551 U JP S62165551U
- Authority
- JP
- Japan
- Prior art keywords
- detection device
- groove
- pinhole detection
- light
- dark box
- 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
- 230000003287 optical effect Effects 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Description
第１図は従来のピンホール検出装置の概略構成
を示す要部断面図、第２Ａ、第２Ｂ、第２Ｃ図は
それぞれ従来の光シール板の他の例を示す要部断
面図、第３図は本考案に係るピンホール検出装置
の要部を示す断面図、第４，５図は第３図の漏洩
光減衰作用を説明する説明図、第６図は本考案に
好適な光シール板の他の実施例を示す断面図、第
７図は本考案に用いられる光シール板の更に他の
実施例を示す断面図、第８図は第７図における漏
洩光減衰作用を示す説明図、第９図は本考案の作
用を説明するための特性図、第１０図は本考案に
用いられる光シール板の更に他の実施例を示す断
面図である。
１０…缶、１０ａ…開口端、１２…暗箱、１２
ａ…窓、１４…光シール板、１４ａ…溝、１８…
光源、２２…光検知器、２４…トラツプ溝。
FIG. 1 is a cross-sectional view of a main part showing a schematic configuration of a conventional pinhole detection device, FIGS. 2A, 2B, and 2C are cross-sectional views of main parts showing other examples of a conventional optical seal plate, and FIG. 4 and 5 are explanatory diagrams illustrating the leakage light attenuation effect of FIG. 3, and FIG. 6 is a cross-sectional view showing the main parts of the pinhole detection device according to the present invention. 7 is a sectional view showing still another embodiment of the optical sealing plate used in the present invention; FIG. 8 is an explanatory diagram showing the leakage light attenuation effect in FIG. 7; FIG. 9 is a characteristic diagram for explaining the operation of the present invention, and FIG. 10 is a sectional view showing still another embodiment of the optical seal plate used in the present invention. 10... Can, 10a... Open end, 12... Dark box, 12
a... Window, 14... Optical seal plate, 14a... Groove, 18...
Light source, 22...photodetector, 24...trap groove.
補正 昭６２．４．２２
考案の名称を次のように補正する。
考案の名称 缶のピンホール検出装置
実用新案登録請求の範囲、図面の簡単な説明を
次のように補正する。Amendment April 22, 1982 The name of the invention is amended as follows. Title of the invention Pinhole detection device for cans The scope of the utility model registration claims and the brief description of the drawings are amended as follows.
【実用新案登録請求の範囲】
１ 缶の開口端が密接されて外光の入射を遮蔽す
る光シール板と缶の内腔に連通する窓とを有する
暗箱と、暗箱に接続され暗箱内への入射光を電気
的に検出する光検知器と、缶の外側から光を照射
する光源と、を含む缶のピンホール検出装置にお
いて、前記光シール板は缶の開口端が挿入される
溝を有しかつ缶より大きな硬度を有する材料から
形成されているとともに前記溝にはトラツプ溝が
連通接続されてなる缶のピンホール検出装置。
２ 光シール板の溝表面には黒色非光沢面が形成
されている実用新案登録請求の範囲第１項記載の
缶のピンホール検出装置。[Claims for Utility Model Registration] 1. A dark box having a light seal plate that closes the open end of the can to block the entrance of external light and a window that communicates with the inner cavity of the can, and a dark box that is connected to the dark box and has a window that communicates with the inside of the dark box. In a can pinhole detection device including a photodetector that electrically detects incident light and a light source that irradiates light from outside the can, the optical seal plate has a groove into which an open end of the can is inserted. A pinhole detection device for a can, which is made of a material having a hardness greater than that of the can, and wherein a trap groove is connected in communication with the groove . 2. The can pinhole detection device according to claim 1, wherein a black non-glossy surface is formed on the groove surface of the optical sealing plate.
【図面の簡単な説明】
第１図は従来のピンホール検出装置の概略構成
を示す要部断面図、第２Ａ、第２Ｂ、第２Ｃ図は
それぞれ従来の光シール板の他の例を示す要部断
面図、第３図は本考案の光シール板の実施例を示
す断面図、第４図は第３図における漏洩光減衰作
用を示す説明図、第５図は本考案の作用を説明す
るための特性比較図、第６図は本考案の光シール
板の更に他の実施例を示す断面図である。
１０…缶、１０ａ…開口端、１２…暗箱、１２
ａ…窓、１４…光シール板、１４ａ…溝、１８…
光源、２２…光検知器、２４…トラツプ溝。[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a sectional view of main parts showing a schematic configuration of a conventional pinhole detection device, and Figs. 2A, 2B, and 2C are main parts showing other examples of a conventional optical sealing plate. FIG. 3 is a sectional view showing an embodiment of the optical sealing plate of the present invention, FIG. 4 is an explanatory diagram showing the leakage light attenuation effect in FIG. 3, and FIG. 5 is an explanation of the action of the present invention. FIG. 6 is a sectional view showing still another embodiment of the optical sealing plate of the present invention. 10... Can, 10a... Open end, 12... Dark box, 12
a... Window, 14... Optical seal plate, 14a... Groove, 18...
Light source, 22...photodetector, 24...trap groove.
Claims (1)
する光シール板と缶の内腔に連通する窓とを有す
る暗箱と、暗箱に接続され暗箱内への入射光を電
気的に検出する光検知器と、缶の外側から光を照
射する光源と、を含む缶のピンホール検出装置に
おいて、光シール板は缶の開口端が挿入される溝
を有しかつ缶より大きな硬度を有する材料から形
成されていることを特徴とする缶のピンホール検
出装置。 (2) 実用新案登録請求の範囲(1)記載の装置にお
いて、光シール板の溝にはトラツプ溝が連通接続
されていることを特徴とする缶のピンホール検出
装置。 (3) 実用新案登録請求の範囲(1)または(2)記載
の装置において、光シール板の溝表面には黒色非
光沢面が形成されていることを特徴とする缶のピ
ンホール検出装置。[Scope of Claim for Utility Model Registration] (1) A dark box having a light seal plate that closes the open end of the can to block the entrance of external light and a window that communicates with the inner cavity of the can, and a dark box that is connected to the dark box and has In a can pinhole detection device that includes a photodetector that electrically detects incident light on the can and a light source that irradiates light from the outside of the can, the optical seal plate has a groove into which the open end of the can is inserted. 1. A pinhole detection device for a can, characterized in that the device is made of a material having hardness greater than that of a can. (2) A can pinhole detection device according to claim (1), characterized in that a trap groove is connected to the groove of the optical sealing plate. (3) A can pinhole detection device according to claim (1) or (2), characterized in that a black non-glossy surface is formed on the groove surface of the optical sealing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4270087U JPS636671Y2 (en) | 1987-03-25 | 1987-03-25 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4270087U JPS636671Y2 (en) | 1987-03-25 | 1987-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62165551U true JPS62165551U (en) | 1987-10-21 |
| JPS636671Y2 JPS636671Y2 (en) | 1988-02-25 |
Family
ID=30858862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4270087U Expired JPS636671Y2 (en) | 1987-03-25 | 1987-03-25 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS636671Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014016198A (en) * | 2012-07-06 | 2014-01-30 | Toyo Seikan Kaisha Ltd | Pinhole inspection device for can body |
-
1987
- 1987-03-25 JP JP4270087U patent/JPS636671Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014016198A (en) * | 2012-07-06 | 2014-01-30 | Toyo Seikan Kaisha Ltd | Pinhole inspection device for can body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS636671Y2 (en) | 1988-02-25 |
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