Tent – canopy – umbrella – or cane – Portable shelter – Umbrella-type
Patent
1994-12-13
1996-01-02
Mai, Lanna
Tent, canopy, umbrella, or cane
Portable shelter
Umbrella-type
135 27, E04H 1528
Patent
active
054799546
ABSTRACT:
A foldable tent includes a canopy and a collapsible frame assembly for stretching the canopy. The frame assembly includes a crown, a plurality of curved rib units, a slider and a plurality of stretcher members. The crown has a vertically extending passageway formed therethrough. The curved rib units have upper ends pivoted to and around the crown, and lower ends fastened to the periphery of the canopy. The slider has a base member and a retainer which extends upwardly from the base member. The retainer is extensible to pass through the passageway when the frame assembly is collapsed, and is engageable with the crown when the retainer expands. The stretcher members have first ends pivoted to and around the base member, and second ends pivoted respectively to the rib units for supporting the rib units to stretch the canopy. The stretcher members are connected to one another to form a reinforcement network for supporting the rib units.
REFERENCES:
patent: 420690 (1890-02-01), Linke
patent: 580907 (1897-04-01), Stevenson
patent: 1680090 (1928-08-01), Cullman
patent: 2864389 (1958-12-01), Smith et al.
patent: 3874397 (1975-04-01), Oberhaus
patent: 4033366 (1977-07-01), Forget
patent: 5117851 (1992-06-01), Chang
patent: 5216948 (1993-06-01), Sheppard et al.
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