Coupling device for collapsible sunshade umbrella

Details Coupling device for collapsible sunshade umbrella Coupling device for collapsible sunshade umbrella

1998-07-13

1999-03-09

Mai, Lanna

Tent, canopy, umbrella, or cane

Umbrella

Combined

248121, 2481221, A45B 300

Patent

active

058787623

ABSTRACT:
A coupling device for a collapsible sunshade umbrella includes a coupling base including a supporting column having a first end portion and a second end portion containing an insertion socket therein, two juxtaposed extension ears each extending outward from the outer wall of the supporting column and each formed with a plurality of locking ribs, and a pivot base including a rotary block rotatably mounted between the two extension ears and having two sides each containing a plurality of locking indents each receiving one of the plurality of locking ribs of each of the two extension ears, and a supporting tube fixedly mounted on the rotary block.

REFERENCES:
patent: 2039805 (1936-05-01), Knight
patent: 2822143 (1958-02-01), Johansen
patent: 2911178 (1959-11-01), Joffe
patent: 3148851 (1964-09-01), Condon
patent: 3434484 (1969-03-01), Dilullo
patent: 3765434 (1973-10-01), Riggs
patent: 5123619 (1992-06-01), Tomlinson et al.
patent: 5161561 (1992-11-01), Jamieson
patent: 5396915 (1995-03-01), Bomar
patent: 5669536 (1997-09-01), Wang
patent: 5808217 (1998-09-01), Liao

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