Amusement devices: toys – Rolling or tumbling – Including intrinsic motive power means for propulsion
Patent
1993-09-28
1994-12-20
DeMille, Danton D.
Amusement devices: toys
Rolling or tumbling
Including intrinsic motive power means for propulsion
180233, 180 656, 446443, 446448, 446470, A63H 2922, A63H 17267, B60K 1734
Patent
active
053742133
ABSTRACT:
A chassis and drive train for toy vehicles comprises a housing, front and rear axles mounted on the housing for rotation, a drive motor, and an output power transmission coupled between the motor and the first axle for driving the first axle. A coupling transmission connected between the first and second axles for transmitting the rotation of the first axle to the second axle includes a first transmission train driven by the first axle, an idler mounted on the housing and driven by the first transmission train, and a second transmission train driven by the idler and driving the second axle. The transmission trains of the coupling transmission include drive shafts that intersect at an angle of substantially less than 180 degrees. With this geometry, the bottom of the chassis housing can be located well above the base plane defined by the axles, inasmuch as the drive shafts that couple the axles are oblique to each other and the idler is located well above the base plane. An advantageous arrangement of the batteries is included. The motor output transmission is arranged to disengage automatically in response to a resisting torque greater than a predetermined value.
REFERENCES:
patent: Re19987 (1936-05-01), Wells et al.
patent: 464246 (1891-12-01), Dewey
patent: 4467557 (1984-08-01), Kuna et al.
patent: 4878877 (1989-11-01), Auer et al.
patent: 4938306 (1990-07-01), Sumiyoshi et al.
DeMille Danton D.
Lanard Toys Limited
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