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Patent Searching and Data


Title:
STEPPING MOTOR DRIVING MECHANISM AND IMAGE READING DEVICE
Document Type and Number:
Japanese Patent JPH10184845
Kind Code:
A
Abstract:

To provide a stepping motor driving mechanism by which inertia can be increased/reduced in compliance with a switching between normal rotation and reverse rotation of a stepping motor.

In a stepping motor driving mechanism using a stepping motor 8 which can be rotated in the normal/reverse direction, a flywheel is arranged in either of driving shafts, while a spring clutch (clutch mechanism) 2 connecting/disconnecting power transmission between the flywheel and the steeping motor 8 is arranged. The spring clutch 2 is disconnected when the stepping motor 8 is rotated in the normal direction, and the spring clutch 2 is connected when the stepping motor 8 is rotated in the reverse direction. In this way, inertia can be increased/reduced in compliance with the switching between the normal/ reverse rotation of the stepping motor 8.


Inventors:
Yokota, Masahiko
Application Number:
JP1996000345377
Publication Date:
July 14, 1998
Filing Date:
December 25, 1996
Export Citation:
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Assignee:
CANON INC
International Classes:
G03B27/50; F16H33/02; H02K7/02; H02K37/24; H04N1/04; (IPC1-7): F16H33/02; G03B27/50; H02K7/02; H02K37/24; H04N1/04
Attorney, Agent or Firm:
山下 亮一