Reinforced rib of a three-folded umbrella
The invention relates to a reinforced rib of a three-folded umbrella, which is provided with a reinforced rod in the second rib of the frame. The second rib is then to obtain a perfect strength for resisting strong wind and can be effectively used since damage is prevented. The umbrella will be obviously more utilized for use.
The present invention relates to a reinforced rib of a collapsible umbrella, which is particularly about an improvement of a three-folded umbrella.
BACKGROUND OF THE INVENTIONGenerally, a three-folded umbrella is an umbrella having three ribs to assemble the frame. As in use, the second rib of the frame usually bears the most pressure of wind. It is known that the second rib is always the first broken point when strong wind blows. In order to overcome this prior drawback, the conventional method is to provide the second rib with a different material, such as steel, FRP, or carbon fiber. The strength of such second rib can be increased but the cost in manufacturing and assembling will be high. Moreover, this rib must be made by another independent procedure and it always increases the volume of the collapsible umbrella in closed state.
SUMMARY OF THE INVENTIONThe present invention is to provide a reinforced rib of a three-folded umbrella, wherein a reinforced rod is provided directly in the U-shape space of the second rib. Hence, the three-folded umbrella with the reinforced rod can provide a perfect strength to resist wind and to prevent from damage. Now, accompanying with the following drawings, the character of the present invention will be described here and after.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention is to provide an improvement about a three-folded umbrella. In first embodiment in
It can be found that it is unnecessary to change the structure of the original umbrella. The present invention just provides the reinforced rod (2) in a conventional second rib (1) and connects them together. It increases the strength of the second rib to resist strong wind that obtains the improvement and utilization.
The above embodiment relates to an application of a manual umbrella and it is only an exemplary. Other embodiment with the same spirit of the present invention will be also claimed in this invention. Such as shown in
Accordingly, the improvement of the present invention is to provide a reinforced rod in the second rib of a three-folded umbrella. Hence, the strength of the second rib is increased that prevents from damage and obtains utilization. Furthermore, since the reinforced rod is received directly in the second rib, the volume of the collapsible umbrella will not be increased.
In above embodiments, the reinforced rod is formed a round shape or a U shape. Actually, other modified shape can be permitted in the present invention, such as being semi-circular, D-shaped, triangle, W-shaped, V-shaped, or M-shaped, all of which are recited in the scope of this invention.
Claims
1. A reinforced rib of a three-folded umbrella having three-rib to compose a frame of the umbrella, wherein the improvement is to provide a reinforced rod being received and engaged within the second rib of the frame.
2. A reinforced rib of a three-folded umbrella as claimed in claim 1, wherein the reinforced rod has a U-shaped cross section.
3. A reinforced rib of a three-folded umbrella as claimed in claim 1, wherein the cross section of the reinforced rod can be circular, semi-circular, D-shaped, triangle, W-shaped, V-shaped, or M-shaped.
4. A reinforced rib of a three-folded umbrella as claimed in claim 1, wherein the umbrella is collapsible either manually or automatically
Type: Application
Filed: Mar 24, 2004
Publication Date: Sep 29, 2005
Inventor: Cheng Lai (Taipei City)
Application Number: 10/807,123