Automatic umbrella having stable extending and folding structure

Details Automatic umbrella having stable extending and folding structure Automatic umbrella having stable extending and folding structure

1990-10-29

1991-06-04

Chilcot, Jr., Richard E.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 28, 135 334, A45B 2514

Patent

active

050205587

ABSTRACT:
An automatic umbrella includes a telescopic shaft having a lower outer tube telescopically mounted with an upper inner tube, a locking device pivotally formed in a grip and a lower portion of the central shaft having a single hook portion respectively engageable with two hook holes formed in a lower runner pivotally secured with a plurality of stretcher ribs of a rib assembly of the umbrella for locking a folded umbrella by engaging a lower hook hole in the lower runner with the hook portion of the locking device and for shielding the rib tips into the grip by engaging the hook portion with an upper hook hole of the lower runner, thereby stably locking the folded umbrella.

REFERENCES:
patent: 2165967 (1939-07-01), Haupt
patent: 3658076 (1972-04-01), Yasuda
patent: 3856030 (1974-12-01), Sato
patent: 4624275 (1986-11-01), Baldwin
patent: 4682617 (1987-07-01), Schultes et al.
patent: 4766917 (1988-08-01), Yang

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