JPS55157071A - Punch hole detector - Google Patents

Punch hole detector

Info

Publication number
JPS55157071A
JPS55157071A JP6599079A JP6599079A JPS55157071A JP S55157071 A JPS55157071 A JP S55157071A JP 6599079 A JP6599079 A JP 6599079A JP 6599079 A JP6599079 A JP 6599079A JP S55157071 A JPS55157071 A JP S55157071A
Authority
JP
Japan
Prior art keywords
photo detector
light flux
projector
receives
detected
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
Application number
JP6599079A
Other languages
Japanese (ja)
Other versions
JPS6113637B2 (en
Inventor
Katsuya Ueki
Tokuji Umebayashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP6599079A priority Critical patent/JPS55157071A/en
Publication of JPS55157071A publication Critical patent/JPS55157071A/en
Publication of JPS6113637B2 publication Critical patent/JPS6113637B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To detect the punch hole accurately, by splitting the photo detector, excluding the field of detection receiving the leakage light flux due to meandering through the reception of output signal of the photo detector and the detector for the end, and selecting other detection field as an effective one.
CONSTITUTION: When a detected objective 3 is in meandering, a photo detector 2A receives the radiated light flux from a projector 1. Further, a photo detector 20A to detect the end of the detected object 3 also receives the radiated light flux from the projector 10A, the output of a logical product element 6A is at logical 0, and it is detected that the photo detector 2A receives the light flux leaked with meandering and no mis-output is produced. On the other hand, the photo detector 2B receives the radiated light flux from the projector 1 by punched holes 4. Further, since the photo detector 20B does not receive the radiated light flux of the projector 10B, an output is produced from a logical sum element 7. Accordingly, the punched holes 4 of the detected object 3 can accurately be detected.
COPYRIGHT: (C)1980,JPO&Japio
JP6599079A 1979-05-25 1979-05-25 Punch hole detector Granted JPS55157071A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6599079A JPS55157071A (en) 1979-05-25 1979-05-25 Punch hole detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6599079A JPS55157071A (en) 1979-05-25 1979-05-25 Punch hole detector

Publications (2)

Publication Number Publication Date
JPS55157071A true JPS55157071A (en) 1980-12-06
JPS6113637B2 JPS6113637B2 (en) 1986-04-14

Family

ID=13302948

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6599079A Granted JPS55157071A (en) 1979-05-25 1979-05-25 Punch hole detector

Country Status (1)

Country Link
JP (1) JPS55157071A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0678351U (en) * 1993-04-19 1994-11-04 レンゴー株式会社 Tape sticking device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0678351U (en) * 1993-04-19 1994-11-04 レンゴー株式会社 Tape sticking device

Also Published As

Publication number Publication date
JPS6113637B2 (en) 1986-04-14

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