Swing having electrically rewound spring motor drive

Details Swing having electrically rewound spring motor drive Swing having electrically rewound spring motor drive

1978-11-13

1980-07-08

Oechsle, Anton O.

Undertaking

5109, 185 40B, A63G 916, F03G 108

Patent

active

042114012

ABSTRACT:
A child's electric swing includes a pre-wound wind-up mechanical escapement type motor having spring-biased retainer and driving pawls, the latter being connected to a pivotally mounted hanger supporting the swing seat. The pawls engage a mainspring-driven ratchet wheel which periodically impulses the driving pawl to maintain the seat in oscillation. The mainspring is rewound periodically by rotating the ratchet wheel in the opposite direction by a battery-operated motor through a gravity-operated one-way clutch after the ratchet wheel rotates only about 180.degree. so that the prewound spring is always under tension. Also the pawls are moved out of engagement with the wheel during such rewinding to eliminate noise and drag on the wheel.

REFERENCES:
patent: 4131842 (1978-12-01), Smith
patent: 4150820 (1979-04-01), Bochmann

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