Lower nest structure of collapsible umbrella

Details Lower nest structure of collapsible umbrella Lower nest structure of collapsible umbrella

2007-04-17

2007-04-17

Cuomo, Peter M. (Department: 3636)

Tent, canopy, umbrella, or cane

Umbrella

Runners and notches

C135S038000, C135S025100

Reexamination Certificate

active

11233100

ABSTRACT:
A lower nest structure for a collapsible umbrella is provided, which contains a tubular member and a body member. The tubular member is sleeved over the central shaft and contains a tubular section and an operation knob. A pair of guiding holes and a pair of wedges located below the guiding holes are interleaved around the tubular section. The body member has a ring section to sleeve over the tubular section of the tubular member. The ring section is confined by the bottom surfaces of the wedges and the operation knob. A pair of opposing hook elements is configured on top of the ring section which could be flexibly expanded outward, causing a force to clasp inward. On the top ends of the hook elements, reversed hooks are configured to penetrate through the guiding holes of the tubular member and into the positioning holes of the central shaft for fixedly positioning the lower nest. When the tubular member is pulled downward, the reversed hooks would be relieved from the positioning holes so that the lower nest could slide downward to close the umbrella.

REFERENCES:
patent: 508189 (1893-11-01), Swan
patent: 5494064 (1996-02-01), Chuang Lee
patent: 6070602 (2000-06-01), Ling Kuo
patent: 6431191 (2002-08-01), Wang
patent: 6758229 (2004-07-01), Wang
patent: 7089950 (2006-08-01), Lin et al.
patent: 2005/0241687 (2005-11-01), Ko

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