| 摘要 |
The device is used for reciprocating a crib to soothe the baby and help put it to sleep. The device comprises a self-contained unit on which a conventional crib can be positioned. It consists of a central horizontal bar on which a v-shaped holder is mounted at each end. A flat rectangular plate is provided with an angularly extending rod which is adjustably slidably mounted in one arm of one of the v-shaped holders. There are four of such plates and rods, two for each holder, to provide a plate under each leg of a crib. A small carriage having casters or other types of wheels is positioned on each plate. The crib is mounted on the carriage, one leg on each carriage, so that it is reciprocable on the plates. Since the motion required is short, a matter of a few inches, the plates need not be large. Mounted adjacent one of the V-shaped holders is a rectangular base board having angularly disposed grooves for receiving the rods extending from the adjacent holder. This locks the base in place. A small gear motor is mounted on the base and is provided with a rotating disc. A lever bar has one end pivotally attached to the disc adjacent the perimeter thereof. The other end of the lever is provided with a clamp for clamping to the bottom edge of the end wall of the crib or an end cross bar. When the motor is turned on, the rotation of the disc will impart a reciprocating motion to the lever to pull the crib back and forth on the carriages riding on the plates.
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