Tent – canopy – umbrella – or cane – Umbrella – Cover or lining feature
Patent
1997-10-31
1998-12-01
Mai, Lanna
Tent, canopy, umbrella, or cane
Umbrella
Cover or lining feature
135 336, 24108, A45B 1500
Patent
active
058424946
ABSTRACT:
The present invention relates to the presentation of an improved structure of umbrella's upper notch and ferrule, comprising mainly an inner flange tube with an appropriate length at the top of an umbrella's upper notch, two opposite walls of said inner flange tube has the flexibility to shrink inward and expand outward, thus forming two resilient walls, the ferrule involves a cap body, in the cap body corresponding to the inner flange tube of the upper notch is a solid connector post, on the end of the connector post corresponding to the two opposite resilient walls of the inner flange tube is an expanded ratchet head portion; when the connector post of said ferrule has penetrated the fabric top and through the upper notch's inner flange tube and reached its position, the ratchet head portion at the end of said connector post will naturally be tightly secured to the ends of the inner flange tube's resilient walls, to prevent the ferrule from falling off, and to clamp the fabric top between the ferrule and the upper notch; since the upper notch is made of a somewhat soft material, the inner flange tube's resilient walls have excellent tenacity and flexibility, and the ferrule that is made of a hard material has a connector post that is solid made, so it will not easily be broken or damaged, therefore, it will improve on the weaknesses in a conventional umbrella's upper notch and ferrule, such as unstable joining, easily falling off, and easily broken or damaged ferrule connector post, etc.
REFERENCES:
patent: 368407 (1887-08-01), McCormick
patent: 1016301 (1912-02-01), Sutlive
patent: 1055694 (1913-03-01), Anello
patent: 2329629 (1943-09-01), Levin
patent: 4061154 (1977-12-01), Cox et al.
patent: 4422467 (1983-12-01), Wu
patent: 5085239 (1992-02-01), Chin-Hung et al.
patent: 5758678 (1998-06-01), Wu
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