Amusement devices: toys – Rolling or tumbling – Including intrinsic motive power means for propulsion
Patent
1984-01-09
1985-09-17
Hafer, Robert A.
Amusement devices: toys
Rolling or tumbling
Including intrinsic motive power means for propulsion
446461, A63H 2900
Patent
active
045418152
ABSTRACT:
A toy vehicle has a gear box containing a clock spring which is wound by pushing the vehicle backward. A two part toggle-linkage system connects the gear box to the frame. When the clock spring is wound, the resulting spring bias urges the toggle-linkage system to one over center position which locks the gear box in order to preserve the energy stored in the wound spring. When the toggle-linkage system is pressed near its center, it moves over center to another position, which unlocks the gear box and releases the energy stored in the wound spring in order to propel the vehicle. When the vehicle is next moved backward, the toggle-linkage returns to the locked position which once again locks the gear box.
REFERENCES:
patent: 2182529 (1939-12-01), Wyrick
patent: 2735222 (1956-02-01), Glass
patent: 3798831 (1974-03-01), Higashi
patent: 3938278 (1976-02-01), Nakamori
patent: 4077156 (1978-03-01), Asano
patent: 4241534 (1980-12-01), Larsson et al.
Chow Kwong-Wai
Chow Ming-Ngar
Lau Alfred T. Y.
Lee James S. W.
Hafer Robert A.
Lee James S. W.
Nolan Daniel
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