Tent – canopy – umbrella – or cane – Umbrella – Collapsible in length
Patent
1994-05-24
1994-12-06
Mai, Lanna
Tent, canopy, umbrella, or cane
Umbrella
Collapsible in length
135 26, 135 31, A45B 1900
Patent
active
053701445
ABSTRACT:
A multiple-fold mini umbrella includes: a telescopic central shaft, and at least a top rib pivotally secured to an upper notch formed on a top end of the central shaft, a stretcher rib pivotally connected between each top rib and a middle runner, and an auxiliary stretcher rib pivotally connected to a lower runner slidably disposed about the central shaft with the middle runner slidably engageable with a sleeve member of the lower runner having an upper flange formed on a top edge of the sleeve member, and an intermediate rib slidably engageable with the auxiliary stretcher rib and pivotally connected with an outer rib which is pivotally connected to the top rib by a linking rod, whereby when closing an opened umbrella by lowering the lower runner along the central shaft to lower the auxiliary stretcher rib toward the central shaft, the upper flange of the lower runner will pull the middle runner and the pivotally connected stretcher rib and top rib downwardly to retractively centralize all the umbrella ribs toward the central shaft to greatly reduce a folding volume of the closed umbrella for a convenient carrying purpose.
REFERENCES:
patent: 973155 (1910-10-01), Woollett
patent: 4610262 (1986-09-01), Broyer et al.
patent: 5305770 (1994-04-01), DeMarco
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