Tent – canopy – umbrella – or cane – Umbrella – Self-opening and closing
Patent
1978-04-24
1979-05-29
Wyche, Benjamin W.
Tent, canopy, umbrella, or cane
Umbrella
Self-opening and closing
52109, 135DIG3, A45F 116, E04H 1218
Patent
active
041564332
ABSTRACT:
A collapsible shelter structure having a pair of collapsible frame members disposed at opposed ends thereof for supporting panel means which extend therebetween, wherein the collapsible frame means include a braced lazy-tong structure which is designed to maintain the frames in erect disposition, and wherein bracing strut means are pivotally coupled to alternate outer apices of the lazy-tong structure for rendering the frame means both stable and rigid. To further enhance rigidity of the erect structure, the inner apices are normally formed as a straight angle when the shelter structure is in erect form, with these inner apices forming a series of spaced points along a semicircle of fixed radius. The collapsible shelter means may be taken down and stored in collapsed form when desired, with generally rigid or durable base side panels being provided to protect the structure from inadvertent damage during use and during storage. Means may be provided for normally urging the bracing struts into engagement so as to provide a more stable and rigid structure, and furthermore means are provided for selectively disengaging the bracing strut means to enable the user to take the structure down into collapsed form.
REFERENCES:
patent: 3559353 (1971-02-01), Partridge
Berman Conrad L.
Haugen Orrin M.
Nikolai Thomas J.
Rupp Industries Inc.
Wyche Benjamin W.
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