| 摘要 |
The invention provides a rotatable device including a body adapted to be supported for rotation about an axis of rotation. A resilient electrically conductive member is supported by the body for rotation with the body, and has first and second blades, the second blade being generally parallel and spaced radially inwardly of the first blade with respect to the axis of rotation of body. The first and second blades of the resilient electrically conductive member define a battery receiving area therebetween adapted to house a button type battery. A electrically operable device is mounted on the second blade of the resilient electrically conductive member and is centrifugally activated when the body is rotated about the axis.
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