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.)
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Hitachi Ltd
Original Assignee
Hitachi Ltd
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Filing date
Publication date
Application filed by Hitachi LtdfiledCriticalHitachi Ltd
Priority to JP9140376ApriorityCriticalpatent/JPS5317917A/en
Publication of JPS5317917ApublicationCriticalpatent/JPS5317917A/en
PURPOSE: To set the speed of start of sewing and termination of sewing as the most suitable speed, by adding tacking signal circuit of start of sewing and tacking signal circuit of termination of sewing in the speed control circuit of a sewing machine.
COPYRIGHT: (C)1978,JPO&Japio
JP9140376A1976-08-021976-08-02Speed control circuit of motor
PendingJPS5317917A
(en)