# US 7,461,667 B2 · Rib structure of a two-layer cover umbrella

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- Number: US 7,461,667 B2
- Document ID: US7461667B2
- Status: Granted
- Kind: B2
- Application number: 11/507,432
- Filed: 2006-08-22
- Published: 2008-02-28
- Granted: 2008-12-09
- Earliest claimed: 2006-08-22
- Inventors: Chin Sung Ko
- Web page: https://patentgrep.com/patent/US7461667B2

## CPC

- A45B 25/22: Devices for increasing the resistance of umbrellas to wind
- A45B 25/02: Umbrella frames
- A45B: WALKING STICKS (walking aids, e.g. sticks, for blind persons A61H3/06); UMBRELLAS; LADIES' OR LIKE FANS (cane or umbrella stands or holders A47G25/12)

## Abstract

The invention relates to a rib structure of a two-layer cover umbrella, which mainly includes an elastic rib having an inner folded end. A connector of a related primary rib of the umbrella is provided with an aperture, for that the inner folded end of the elastic rib is penetrated into the aperture and connected with a lateral rod of the connector. The elastic rib will be then extended outward alone the upper surface of the primary rib smoothly for connecting the upper cover and providing a utilized umbrella with two covers.

## Claims

### Claim 1

A two-layer cover umbrella including a rib structure, the rib structure comprising:
an elastic rib having an inner folded end,
a primary rib,
a connector provided with an aperture in an upper surface thereof, said connector forming a first section and a sleeve integrally formed with said first section, said sleeve of said connector receiving said primary rib,
wherein the inner folded end of the elastic rib is inserted into the aperture and has a folded portion extending downward and rearward to a rear side of said first section opposite the sleeve and is connected by a lateral rod within said first section of said connector, and the elastic rib being thereby extended outward along an upper surface of the primary rib.

### Claim 2 (depends on 1)

The rib structure of a two-layer cover umbrella as claimed in claim 1, wherein the connector includes the lateral rod therein for connecting with said inner folded end of the inner portion of said elastic rib.