A camera assembly including first and second rotating members and a motor
assembly defining a first axis and operably coupled to first rotating
member to drivingly rotate first rotating member. A flexible member
operably couples first and second rotating members such that rotation of
first rotating member causes rotation of second rotating member. A camera
is operably coupled to second rotating member such that rotation of
second rotating member repositions camera. The motor assembly includes a
flange having an outer circumference defining a plurality of teeth and
bearing against a support surface. The outer circumference defines a
radially variable distance from first axis such that rotation of outer
circumference against support surface displaces first axis relative to
second rotational member and thereby adjusts a tensional force in
flexible member. At least one pawl mechanism is fixed relative to support
surface and is engageable with outer circumference.