Automatic umbrella with quadruple folds or the like

Details Automatic umbrella with quadruple folds or the like Automatic umbrella with quadruple folds or the like

1998-05-01

2000-01-25

Friedman, Carl D.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 203, 135 29, 135 37, A45B 2514

Patent

active

060168226

ABSTRACT:
An automatic umbrella includes: a central shaft consisting of four tubes telescopically engageable with one another; a rib assembly consisting of at least a top rib pivotally secured to a top portion of the central shaft, a stretcher rib pivotally connected with the top rib and a lower runner slidably held on the central shaft, and several ribs pivotally connected to the top rib and the stretcher rib; an opening spring resiliently retained in the central shaft for opening the umbrella; a plurality of closing springs secured on the rib assembly for closing the umbrella; and a control device consisting of an upper roller rotatably mounted on an upper portion of the central shaft, a lower roller rotatably secured on the lower runner and an uppermost roller rotatably secured on a top portion of the shaft for continuously deflectively winding a rope of the control device on the rollers for making an automatic umbrella of quadruple folds or the like.

REFERENCES:
patent: 5390686 (1995-02-01), Lin et al.
patent: 5441065 (1995-08-01), Lin et al.
patent: 5492140 (1996-02-01), Lin et al.
patent: 5505222 (1996-04-01), Lin et al.
patent: 5617889 (1997-04-01), Wu
patent: 5626161 (1997-05-01), Lin et al.

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