Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Patent
1996-11-04
1997-07-08
Mai, Lanna
Tent, canopy, umbrella, or cane
Umbrella
Self-opening and closing
135 39, 135 31, A45B 2514
Patent
active
056450940
ABSTRACT:
A multiple-fold automatic umbrella includes a lower runner of the umbrella ribs having a rope guiding member longitudinally formed on the runner provided with two rope grooves in two opposite sides of the rope guiding member for an easy winding of the rope on a roller rotatably mounted on the runner; a coupling spring compressibly retained between a middle shaft and an inner block adjacent to the upper notch of the umbrella ribs; at least an engaging hole formed in a lower portion of the upper shaft having a convex portion curved outwardly from the upper shaft and positioned below the engaging hole for stably engaging a wedge portion of the control device when folding the umbrella; and a resilient rib slidably coupled by a coupling ring to the middle rib and is made to prevent dogging with the coupling ring when the umbrella ribs are bent upwardly by a strong upward wind force.
REFERENCES:
patent: 426454 (1890-04-01), Ledig
patent: 2782795 (1957-02-01), Small
patent: 4941494 (1990-07-01), Wu
patent: 5178174 (1993-01-01), Wu
patent: 5337770 (1994-08-01), Wang
patent: 5441065 (1995-08-01), Lin et al.
patent: 5472006 (1995-12-01), Kuo et al.
patent: 5505222 (1996-04-01), Lin et al.
LandOfFree
Multiple-fold automatic umbrella with reinforced ribs and simpli does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multiple-fold automatic umbrella with reinforced ribs and simpli, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multiple-fold automatic umbrella with reinforced ribs and simpli will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2404440