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Title:
コンベアユニットおよびゾーン制御式コンベアシステム
Document Type and Number:
Japanese Patent JP4512694
Kind Code:
B2
Abstract:
A conveyor unit (2) including a driving roller (5), a motor (30) for powering the driving roller (5), and a controller (10) adapted to adjust the motor (30) so as to control the driving roller (5), the motor (30) including a permanent magnet and an armature having a plurality of armature coils (32a-32c), and the controller (10) having an interrupter (15) adapted to repeat shunting and deshunting of at least one of the coils (32a-32c) and a rotation detector (17) adapted to detect an externally forced rotation of the motor (30) in response to an electromotive force induced in at least one of the coils (32a-32c), wherein in the case that the motor (30) is not driven, the controller (10) maintains operations of the interrupter (15) and outputs a presence signal by determining conveyance of an article (W) into an area powered by the motor (30) upon detection of the rotation of the motor (30) by means of the rotation detector (17).

Inventors:
Kazuo Ito
Yoshio Inoue
Application Number:
JP2004364066A
Publication Date:
July 28, 2010
Filing Date:
December 16, 2004
Export Citation:
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Assignee:
Ito Electric Co., Ltd.
International Classes:
B65G43/00; B65G13/02; B65G39/00; B65G43/10
Domestic Patent References:
JP2004018184A
JP10338332A
JP2000335730A
JP4121314A
JP2004026503A
JP11199030A
Attorney, Agent or Firm:
Takashi Fujita