| 摘要 |
A mobile apparatus including a motor and one or more mobile assemblies. Each mobile assembly includes a rotational coupling unit oscillating between winding to store energy and unwinding to supply energy with rotation alternately in a first direction and in a second direction. The mobile assembly includes a mobile connected to the coupling unit for rotation by the coupling unit alternately in the first direction and in the second direction. The motor is connected to and stores energy into a first one of the mobile assemblies. In one preferred embodiment, the motor is a low duty-cycle impulse motor that conserves energy. A typically mobile apparatus has an expected battery life of well beyond 12 months.
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