JPS57211069A - Detecting method for traveling speed change of wire and disconnection preventing device of wire - Google Patents

Detecting method for traveling speed change of wire and disconnection preventing device of wire

Info

Publication number
JPS57211069A
JPS57211069A JP9615381A JP9615381A JPS57211069A JP S57211069 A JPS57211069 A JP S57211069A JP 9615381 A JP9615381 A JP 9615381A JP 9615381 A JP9615381 A JP 9615381A JP S57211069 A JPS57211069 A JP S57211069A
Authority
JP
Japan
Prior art keywords
wire
traveling speed
pulse signal
speed change
shaft
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.)
Pending
Application number
JP9615381A
Other languages
Japanese (ja)
Inventor
Koji Satake
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable Ltd
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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP9615381A priority Critical patent/JPS57211069A/en
Publication of JPS57211069A publication Critical patent/JPS57211069A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/50—Devices characterised by the use of electric or magnetic means for measuring linear speed
    • G01P3/54—Devices characterised by the use of electric or magnetic means for measuring linear speed by measuring frequency of generated current or voltage

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing Of Electric Cables (AREA)

Abstract

PURPOSE:To ensure detection with no time delay, by detecting the traveling speed change of a wire from the change of cycle of a pulse signal proportional to the rotation a frequency of a pulley which revolves in accordance with the traveling of the wire. CONSTITUTION:A pulley 5 and a shaft 4 turn in a body in accordance with the traveling of a wire W. A photoelectric device consisting of a light emitting element 7 and a photodetector 8 provided at both sides of a hole 6 drilled to the shaft 4 delivers a pulse signal having a cycle proportional to the rotational frequency of the shaft 4. A arithmetic circuit 9 compares the cycle of the pulse signal delivered from the detector 8 with that of the pulse signal given from an oscillating circuit 10. Then the circuit 9 delivers a signal when the traveling speed of the wire W lowers and then stops the rotation of a motor 12 that drives a transaction device 13.
JP9615381A 1981-06-22 1981-06-22 Detecting method for traveling speed change of wire and disconnection preventing device of wire Pending JPS57211069A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9615381A JPS57211069A (en) 1981-06-22 1981-06-22 Detecting method for traveling speed change of wire and disconnection preventing device of wire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9615381A JPS57211069A (en) 1981-06-22 1981-06-22 Detecting method for traveling speed change of wire and disconnection preventing device of wire

Publications (1)

Publication Number Publication Date
JPS57211069A true JPS57211069A (en) 1982-12-24

Family

ID=14157419

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9615381A Pending JPS57211069A (en) 1981-06-22 1981-06-22 Detecting method for traveling speed change of wire and disconnection preventing device of wire

Country Status (1)

Country Link
JP (1) JPS57211069A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0159877U (en) * 1987-10-09 1989-04-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0159877U (en) * 1987-10-09 1989-04-14

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