Opening mechanism of quadruple collapsible umbrellas

Details Opening mechanism of quadruple collapsible umbrellas Opening mechanism of quadruple collapsible umbrellas

1999-07-01

2000-11-14

Stodola, Daniel P.

Tent, canopy, umbrella, or cane

Umbrella

Self-opening and closing

135 254, 135 38, A45B 2516, A45B 1908

Patent

active

061455229

ABSTRACT:
An opening mechanism of quadruple collapsible umbrellas, wherein the main improvements are two independent pulling ropes governing the movement of a runner and a stretcher system as well as the motion of the tubular elements of the umbrella stick. These improvements further include a hollow plug disposed in the umbrella stick, against the upper and the lower face of which plug two individual springs are respectively seated to provide sufficient resilient forces. A locating spring and a locating pin are arranged to prevent inadvertent triggering, which may cause damages to the umbrella.

REFERENCES:
patent: 5791359 (1998-08-01), Lin et al.
patent: 5803102 (1998-09-01), Ko
patent: 5806545 (1998-09-01), Ko
patent: 6016822 (2000-01-01), Lin et al.

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