| 摘要 |
Versatile safety device that detects tilting usable in combination with a hat for driver alertness or in combination with a floatation device for swimming pool safety. Device is composed primarily of two lightweight metallic cups resting on a generally flat base that complete an electric circuit when the device is tilted at least to a certain adjustable angle either because (i) a driver's head is tilted due to drowsiness or (ii) because of waves as device supportably rests on water surface. Tilting of device causes a spherical metallic object to roll from the apex of the inner cup along the side of inner cup toward the edge of the inner cup and thereby touch the outer cup while simultaneously remaining touching the inner cup. Inner metallic cup is upright cone. Outer cup is upside down metallic cover surrounding inner cup on all sides except bottom where flat base appears. Standard lightweight battery, buzzer, wires are used for circuit. When circuit is completed buzzer sounds. In certain embodiments, the angle of inner cup to flat base is adjustable because inner cup is made of malleable metal having pleats running along cone surface from apex to top. Accordingly, degree of driver drowsiness necessary to trigger alarm can be adjusted. As swimming pool safety device in combination with a floatation device on water surface, device can detect motion caused by waves due to a child falling into the swimming pool or an intruder.
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