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Patent Searching and Data


Title:
POWER GENERATION DEVICE OF EARTH AUGER MACHINE
Document Type and Number:
Japanese Patent JP2000226978
Kind Code:
A
Abstract:

To supply electric power to an auger without providing a control board and without enlarging the size of a generator.

In the power generation device of an earth auger machine driven by an electric motor such as an auger screw, an open phase and reverse phase detector 14, a normal rotation and reverse rotation switch 15 and a pole number switch 16 are provided to be connected between a breaker and an output terminal board 35 in the casing of the power generation device in series, and a resistor 27 for desired voltage reduction at the time of short circuit and a relay 28 for short-circuiting the resistor 27 for a prescribed time at the time of the starting of the electric motor are provided between an automatic voltage regulator 21 and a voltage increase and decrease device 30.


Inventors:
OMI MASARU
MATSUYOSHI ATSUKI
YOSHIDA ICHIRO
WASHIZU MANABU
Application Number:
JP2733099A
Publication Date:
August 15, 2000
Filing Date:
February 04, 1999
Export Citation:
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Assignee:
NIPPON SHARYO SEIZO KK
International Classes:
E21B3/02; E21B3/025; H02P21/34; H02P23/00; H02P23/07; H02P23/24; H02P25/20; (IPC1-7): E21B3/02; H02P7/36
Attorney, Agent or Firm:
Tsutomu Adachi (1 person outside)