Multiple-fold umbrella as quickly opened and closed
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United States of America Patent
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N/A
Issued Date -
May 19, 2005
app pub date -
Nov 14, 2003
filing date -
Nov 14, 2003
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A multiple-fold umbrella includes a rib assembly pivotally secured to a central shaft, with the rib assembly including a stretcher rib pivotally connected with a top rib and pivotally secured to the central shaft, an intermediate pivotally connected between he stretcher rib and a rear rib, and a resilient connecting rib slidably coupled with the intermediate rib and resiliently secured between the stretcher rib through a spring device and the rear rib, whereby upon opening of the umbrella, the resilient connecting rib will be arcuately bent in order for automatically ejecting the rear rib outwardly for opening the umbrella quickly without the aid of manual pulling by the user's hand; and upon closing of the umbrella, the spring device, which is previously tensioned to store its resilience when opening the umbrella, will restore the rib assembly to resiliently retract the rib assembly for accelerating the folding of the umbrella.
First Claim
Family
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Cited Art Landscape
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