A geared motor may include a connector, a motor, a deceleration mechanism,
an output shaft and a circuit board. The output shaft may include a
rotation transmitted part driven by the deceleration mechanism, an
external connection part which is disposed apart from the rotation
transmitted to be connected with an external member, and a small diameter
part formed between the rotation transmitted part and the external
connection part. A part of the circuit board is disposed in a space
between the rotation transmitted part and the external connection part,
and an insertion opening of the connector is opened in a direction that
the rotation transmitted part is disposed with respect to the external
connection part.