Desk-top cutting machine
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United States of America Patent
Stats
-
Nov 12, 1996
Grant Date -
N/A
app pub date -
Oct 20, 1994
filing date -
Oct 20, 1994
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
In a desk-top cutting machine, a magnet 24 and a magnetic pickup 22 are attached to a motor shaft 12. A control circuit 28 is provided for controlling a TRIAC 23 in response to the signal from the detection means. Further, a dynamic braking coil 25 which serves as braking means for a motor 11 when power supply to the motor 11 is stopped is provided in the motor 11. The dynamic braking coil 25 stops within a time during which no slip is produced between the motor shaft 12 and endless belt 18 and between the cutting blade shaft 10 and endless belt 18. In this way, the rpm and torque of the motor are controlled from motor starting to cutting and motor stopping.
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