11.2.2 Slip Clutch Mechanism
The separation roller is mounted on a slip clutch. The slip clutch [A] consists
of an input hub [B] and an output hub [C], which also acts as the case of the
clutch. A magnetic ring [D] and the steel spacers [E] are fitted onto the input
hub. A ferrite ring [F] is fitted into the output hub. Ferrite powder [G] packed
between the magnetic ring and the ferrite ring generates a constant torque
due to magnetic force. The input hub and the output hub slip when the
rotational force exceeds the constant torque. The constant torque prevents
double feeding, because it exceeds the coefficient of friction between sheets
of paper.
This type of slip clutch does not require lubrication.
[G]
[F]
[D]
[B]
[E]
[C]
[A]
Detailed
Descriptions
STM 2-79 A156/A160/A162
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