# US 2014/0150833 A1 · Middle disk of sunshade umbrellas

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- Number: US 2014/0150833 A1
- Document ID: US20140150833A1
- Status: Published application
- Kind: A1
- Application number: 14/131,430
- Filed: 2011-12-06
- Published: 2014-06-05
- Earliest claimed: 2011-07-08
- Inventors: Oliver Joen-an Ma
- Web page: https://patentgrep.com/patent/US20140150833A1

## CPC

- A45B 25/00: Details of umbrellas (sticks for umbrellas A45B1/00 - A45B9/00; illuminating devices for umbrellas A45B3/02; {sockets or holders for poles or posts E04H12/22})
- A45B 25/02: Umbrella frames
- F16C 11/045: {with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin (crank-pins F16C11/02)}
- 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)
- F16C: SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS

## Abstract

The present invention relates to a middle disk of sunshade umbrellas, which comprises a first and a second end part which are connected with each other. The first end part is an insertion portion for a short rib and the insertion portion for a short rib is provided with fixing holes for a short rib. The second end part has the first and the second clamp arm which are disposed opposite to each other. The first and the second clamp arm have a first and a second boss respectively and the first and the second boss are disposed opposite to each other. Preferably, the fixing holes for a short rib of which the number is not less than two are disposed at intervals along the length of the insertion portion for a short rib. The first and the second clamp arm are both in curved or corner shape. The middle disk of sunshade umbrellas is composed of a first and a second part. The first part comprises a first and a second end which are connected with each other and the second end has the first clamp arm. The second part comprises a third and a fourth end and the fourth end has the second clamp arm. The first and the third end contact with each other to form the insertion portion for a short rib. The present invention is ingeniously and uniquely designed, concise in structure, simple to assemble, artistic in appearance and is appropriate to be promoted on a large scale.

## Claims

### Claim 1

A middle disk of sunshade umbrellas, wherein said middle disk of sunshade umbrellas comprising: a first end part and a second end part which are connected with each other, said first end part being an insertion portion for a short rib, said insertion portion for a short rib being provided with fixing holes for a short rib, said second end part having a first clamp arm and a second clamp arm which are disposed opposite to each other, said first clamp arm having a first boss, said second clamp arm having a second boss, said first boss and said second boss being disposed opposite to each other, said middle disk of sunshade umbrellas being composed of a first part and a second part, said first part comprising a first end and a second end which are connected with each other, said second end having the said first clamp arm, said second part comprising a third end and a fourth end which are connected with each other, said fourth end having the said second clamp arm, and the said first end and the said third end contacting with each other to form the said insertion portion for a short rib.

### Claim 2 (depends on 1)

The middle disk of sunshade umbrellas according to claim 1, wherein the number of the said fixing holes for a short rib is not less than two.

### Claim 3 (depends on 2)

The middle disk of sunshade umbrellas according to claim 2, wherein said fixing holes for a short rib are disposed at intervals along the length of said insertion portion for a short rib.

### Claim 4 (depends on 1)

The middle disk of sunshade umbrellas according to claim 1, wherein said first clamp arm and said second clamp arm are both in curved or corner shape.

### Claim 5 (depends on 1)

The middle disk of sunshade umbrellas according to claim 1, wherein the long rib is located between the first clamp arm and the second clamp arm, and the first boss and the second boss are inserted respectively into the hole of a specific part of the long rib.

### Claim 6 (depends on 1)

The middle disk of sunshade umbrellas according to claim 1, wherein said first end has a first groove, and said third end has a second groove; said first groove and said second groove are disposed opposite to each other to form said fixing holes for a short rib.

### Claim 7 (depends on 1)

The middle disk of sunshade umbrellas according to claim 1, wherein said first part and said second part are fastened or clamped to each other to achieve the assembly.