Fully automatic collapsible umbrella

Details Fully automatic collapsible umbrella Fully automatic collapsible umbrella

1991-09-12

1992-09-08

Scherbel, David A.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 24, 135 39, 135 40, A45B 2514

Patent

active

051449692

ABSTRACT:
A fully automatic collapsible umbrella comprises a hollow shank including an upper, a middle and a lower tubes, telescopic to each other, an expansion spring disposed between the upper and lower tubes, and an umbrella closing spring disposed between the upper and middle tubes, as well as an upper, a middle and a lower rings; a grip mounted outside of the lower tube at lower portion, having an actuator for carrying out the umbrella opening and closing operation; a pawl provided at the upper portion of the upper tube; an inner tube provided with a positioner; twin wires movably connected to each other by a connector, in which the upper wire is provided at upper end with a slidable block for controlling the pawl and the lower wire is operated at lower end by the actuator; and an umbrella opening spring disposed between the middle and lower rings. Further, a safety member is provided for prevent the umbrella from opening by accident.

REFERENCES:
patent: 959383 (1910-05-01), Pezzene
patent: 1091895 (1914-03-01), Schaaf
patent: 1117365 (1914-11-01), Frisk et al.
patent: 2705967 (1955-04-01), Zimmermann et al.
patent: 3677274 (1972-07-01), Yasuda et al.
patent: 4548222 (1985-10-01), Day
patent: 4682617 (1987-07-01), Schultes et al.
patent: 4860776 (1989-08-01), McQuain
patent: 5036872 (1991-08-01), Huang
patent: 5058613 (1991-10-01), Su et al.

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