Amusement devices: toys – Aerodynamically supported or retarded – Having motor-driven propeller
Patent
1985-10-16
1987-04-07
Yu, Mickey
Amusement devices: toys
Aerodynamically supported or retarded
Having motor-driven propeller
446 62, A63H 2722
Patent
active
046557199
ABSTRACT:
A delayed-release suspension system for rubberband powered flying toys includes a wire-like hanger arm affixed to the forward end of a fuselage of an airplane, the hanger arm being inclined rearwardly at an angle from the vertical of 10.degree. to 25.degree. and provided midway thereof with a V-shaped notch. One end of a rubberband for use in powering the airplane has attached thereto a figure 8 shaped attachment loop, which can be manually positioned on the hanger arm astride the V-notch therein. Upon winding up of the rubberband, the loop adjacent the V-shaped notch will, because of the torque exerted thereon by the rubberband, rotate around the mounting thereof on the hanger arm until it reaches a position wherein the respective sides of the loop are braced against the sides of the hanger arm by the torque. Upon release of the rubberband powered propeller and subsequent unwinding of the rubberband, a delayed-release of the propulsion mechanism will be effected. The torque bracing of the attachment loop against the hanger arm is relaxed upon complete unwinding of the rubberband, resulting in the attachment loop sliding down and off the inclined hanger arm. The residual energy in the rubberband then will effect propulsion of the rubberband and associated propeller structure away from the model airplane.
REFERENCES:
patent: 1792760 (1931-02-01), Pollock
patent: 2253661 (1941-08-01), Teuschler
patent: 3128574 (1964-04-01), Sunray
patent: 3174252 (1965-03-01), Sunray
patent: 3360229 (1967-12-01), Beyer
patent: 3964189 (1976-06-01), Belokin, Jr.
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