| 摘要 |
A shot glass with flashing light source or sound source activated by a low-profile, direction-sensitive inertial switch having a cantilevered coil spring contact. The shot glass has a body and a two-part hollow base, the base having upper and lower walls and a side wall together defining a compartment for an impact-responsive indicator circuit including the inertial switch, an LED or speaker, and a signal generator circuit responsive to the inertial switch, an LED or speaker. The inertial switch is a caseless switch consisting of a stationary contact and a cantilevered coil spring contact both mounted directly to a surface of a printed circuit board. The coil spring is preferably suspended over the stationary contact such that the switch is most sensitive to force applied axially to the bottom of the shot glass, and the longitudinal axis of the coil spring is preferably perpendicular to the longitudinal axis of the shot glass.
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