Opening and closing device for an umbrella

Details Opening and closing device for an umbrella Opening and closing device for an umbrella

1978-07-21

1979-04-17

Machado, Reinaldo P.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

A45B 1900, A45B 2514

Patent

active

041495535

ABSTRACT:
The present invention relates to an opening and closing device for an umbrella which can be easily handled by a single hand; in which a button structure is positioned between a handle and a shaft to control an open-close transmission device rotated by a ratchet gear, thereby to actuate hard steel wire thereof to retract periodically, thus the opening and closing of the umbrella can be handled by a single hand.

REFERENCES:
patent: 735776 (1903-08-01), Kaltenecker
patent: 1091895 (1914-03-01), Schaaf
patent: 2454059 (1948-11-01), Heaney
patent: 3796226 (1974-03-01), Yuen
patent: 3926202 (1975-12-01), Uthemann

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