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Patent Searching and Data


Title:
SMALL-SIZED MOTOR AND MOTOR DRIVER
Document Type and Number:
WIPO Patent Application WO/1997/040568
Kind Code:
A1
Abstract:
A motor driver (1A) is provided with a circuit board (100) on which a feeder circuit is formed, a supporting member (8) fixed to the substrate (100), and a small-sized motor (2A) detachably attached to the member (8). The motor (2A) is a DC vibrating motor and is constituted of a casing (3), a stator (4) and a rotor (5) both housed in the casing (3), a plus terminal (6) and a minus terminal (7) both for supplying electric power to the rotor (5), and a weight (eccentric body) (25) fixed to the end of the rotating shaft (53) of the rotor (5). A notched section (321) and a recessed section (335) are formed in the motor (2A) as rotation preventing means which prevents the rotation of the whole motor (2A) relative to the supporting member (8) when the motor (2A) is driven. An engaging piece (83) which is engaged with the notched section (321) and an engaging piece (85) which is engaged with the recessed section (335) are provided on the supporting member (8).

Inventors:
Kawabata
Seiji, Soya
Yasushi, Nakata
Satoshi
Application Number:
PCT/JP1997/000887
Publication Date:
October 30, 1997
Filing Date:
March 19, 1997
Export Citation:
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Assignee:
SEIKO EPSON CORPORATION KAWABATA
Seiji, Soya
Yasushi, Nakata
Satoshi
International Classes:
H01R39/24; H02K5/00; H02K5/14; H02K5/22; H02K5/26; H02K7/06; H02K5/167; H05K3/30; (IPC1-7): H02K5/00
Foreign References:
JPH031651U
JPH01162747U
JPS5680648U
JPH0446542A
JPH08229253A
JPH0741992U
JPH0179350U
JPH0363060U
JPH0158261U
JPH08275430A
JPH02136455U
JPS55106476U
Other References:
See also references of EP 0840424A1
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