Stepping motor type indicator having a pole tooth with reduced end area

A stepping motor type indicator provided with unambiguous stable points having a holding force in a non-excited condition sufficient to suppress undesirable movements of a pointer. The stepping motor type indicator includes a stepping motor (2) having a rotor (28) with an output shaft (27) and stato...

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Hauptverfasser:	JINUSHI KOICHI, MATSUDA HIROYUKI, NUMAYA HIROYASU, IWAHASHI MASARU, TSURUMAKI KEIJI, SATO HITOSHI, SATO KOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
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creator	JINUSHI KOICHI MATSUDA HIROYUKI NUMAYA HIROYASU IWAHASHI MASARU TSURUMAKI KEIJI SATO HITOSHI SATO KOICHI
description	A stepping motor type indicator provided with unambiguous stable points having a holding force in a non-excited condition sufficient to suppress undesirable movements of a pointer. The stepping motor type indicator includes a stepping motor (2) having a rotor (28) with an output shaft (27) and stators (A, B). Yokes (23, 26) have a plurality of pole teeth (232, 233, 262, 263) extending toward curved outer surfaces of the rotor. The pole ends of a specific pole tooth (232a) chosen from one of the plurality of pole teeth is made to have a pole end area different than that of the remaining pole teeth. This structure produces unambiguous stable points ("a"-"l") and produces strong holding forces so that an attractive force exerted by the stable point ("a") on the pointer (4) toward stopper pin (7) is increased to positively suppress undesirable movements of pointer (4).
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language	eng
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subjects	ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR PHYSICS TARIFF METERING APPARATUS TESTING
title	Stepping motor type indicator having a pole tooth with reduced end area
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