Title:
STATE STORING DEVICE
Document Type and Number:
Japanese Patent JP3885389
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a low-cost state storing device which is easy to mount without requiring any sensor for detecting the rotation of a motor.
SOLUTION: This device is provided with a freely movable seat ST, a DC motor 11 which drives the seat ST, switching members 7 which give the driving instructions to the DC motor, and a controlling device 1 which drives the DC motor 11 by operating the switching members 7 to control the position of the seat ST. It is also provided with a motor rotation pulse generating circuit 3 which makes cut-off frequency fc variable based on the frequency of ripple pulses which indicate the rotational state of the DC motor 11.
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Inventors:
Toshimitsu Oka
Aoki Koji
Hideyuki Kanie
Hitoshi Ishikawa
Aoki Koji
Hideyuki Kanie
Hitoshi Ishikawa
Application Number:
JP30839198A
Publication Date:
February 21, 2007
Filing Date:
October 29, 1998
Export Citation:
Assignee:
Aisin Seiki Co., Ltd.
International Classes:
A47C7/00; H02P7/06; A47C1/024; A47C31/12; B60N2/02; B60N2/12; B60N2/18; B60N2/24; (IPC1-7): H02P7/06; A47C1/024; A47C7/00; A47C31/12; B60N2/12; B60N2/18; B60N2/24
Domestic Patent References:
| JP56063526A | ||||
| JP56007496U |
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