JPS55164901A - Safety unit for electromotive sewing machine - Google Patents

Safety unit for electromotive sewing machine

Info

Publication number
JPS55164901A
JPS55164901A JP7235479A JP7235479A JPS55164901A JP S55164901 A JPS55164901 A JP S55164901A JP 7235479 A JP7235479 A JP 7235479A JP 7235479 A JP7235479 A JP 7235479A JP S55164901 A JPS55164901 A JP S55164901A
Authority
JP
Japan
Prior art keywords
output
circuit
coincidence
sewing machine
control
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
JP7235479A
Other languages
Japanese (ja)
Inventor
Kazuaki Takada
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 Ltd
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP7235479A priority Critical patent/JPS55164901A/en
Publication of JPS55164901A publication Critical patent/JPS55164901A/en
Pending legal-status Critical Current

Links

Landscapes

  • Sewing Machines And Sewing (AREA)
  • Safety Devices In Control Systems (AREA)

Abstract

PURPOSE: To enable the control with high safety, by checking the coincidence of the output between the full adder circuit and that of constant generation circuit and outputting the coincidence signal if in agreement to perform the sequence control for the sewing machine control system.
CONSTITUTION: When a power supply is applied, the oscillation circuit 3 is oscillated, and the logical sum 2 between the address signal 1 and the counter output is taken, the output is input to the static memory circuit 5, the output of the circuit 5 is fed to the full adder circuit 7, and the output of the circuit 5 is integrated and fed to the coincidence check circuit 9. Further, at the circuit 9, the coincidence check for the output of the full adder and the output of the constant generation circuit 10 is made. If in agreement, the coincidence signal 12 is output and the control system of sewing machine enters the sequence control. If in disagreement, the disagreement signal 13 is output to inhibit the entering of sequence control. Thus, the control with high safety can be made.
COPYRIGHT: (C)1980,JPO&Japio
JP7235479A 1979-06-11 1979-06-11 Safety unit for electromotive sewing machine Pending JPS55164901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7235479A JPS55164901A (en) 1979-06-11 1979-06-11 Safety unit for electromotive sewing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7235479A JPS55164901A (en) 1979-06-11 1979-06-11 Safety unit for electromotive sewing machine

Publications (1)

Publication Number Publication Date
JPS55164901A true JPS55164901A (en) 1980-12-23

Family

ID=13486887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7235479A Pending JPS55164901A (en) 1979-06-11 1979-06-11 Safety unit for electromotive sewing machine

Country Status (1)

Country Link
JP (1) JPS55164901A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582901A (en) * 1981-06-30 1983-01-08 Nec Home Electronics Ltd Reset signal generating circuit
JPS6293973U (en) * 1985-11-29 1987-06-16

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS582901A (en) * 1981-06-30 1983-01-08 Nec Home Electronics Ltd Reset signal generating circuit
JPS6293973U (en) * 1985-11-29 1987-06-16

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