Skeleton for a telescopic umbrella

Details Skeleton for a telescopic umbrella Skeleton for a telescopic umbrella

1995-11-09

1996-09-03

Mai, Lanna

Tent, canopy, umbrella, or cane

Umbrella

Collapsible in length

135 29, 135 31, A45B 1910

Patent

active

055514634

ABSTRACT:
A skeleton for telescopic umbrella including a shank having a tab, a ring slidably fitted on said shank and having a slot adapted to receive the tab, a fixed collar fixedly mounted at an upper end of the shank, a plurality of expanders pivotally connected with the fixed collar at an end, a plurality of supporters each pivotally connected with a first intermediate portion of one of the expanders at an end, a plurality of first joints each pivotally connected with another end of respective one of the supporters, a plurality of first ribs pivotally connected with the fixed collar at an end and pivotally connected with the first joints at another end, each of the first ribs being pivotally connected with another end of the expanders at a second intermediate portion, a plurality of second ribs fixedly connected with respective first joints at an end, a plurality of second joints each pivotally connected with another end of the second ribs, a plurality of third ribs pivotally connected with respective second joints at an end, and a plurality of pulling means each including a connecting rod, a spring and a curved plate.

REFERENCES:
patent: 1473906 (1923-11-01), Hartzell
patent: 1567861 (1925-12-01), Rothschild
patent: 2649103 (1953-08-01), Militano
patent: 4149553 (1979-04-01), Lee
patent: 4986294 (1991-01-01), Wu
patent: 5048550 (1991-09-01), Su
patent: 5390686 (1995-02-01), Lin et al.

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