FIELD OF THE INVENTION
The present invention relates to a collapsible umbrella, which includes an improved rib of frame for connecting with two layers of cover that is windproof.
BACKGROUND OF THE INVENTION
As shown in FIG. 1 and 2, a conventional collapsible umbrella with two layers of cover includes a frame, which has a first main rib (1) connecting with a short rib (11) for assembling an upper-layer cover (3). From FIG. 3, it can be seen that upward wind can pass through the passage between the upper-layer cover (3) and the lower-layer cover (4). Hence, the frame of the umbrella is avoided from broken.
The above structure includes the extra short rib (11) on the first rib (1) of the frame. It is trouble and difficult in manufacturing. And the smooth opening outlook of cover will be destroyed because the convex short rib (11) hereunder.
SUMMARY OF THE INVENTION
The present invention is to provide a collapsible umbrella with two layers of cover, which includes an invented structure on the frame that overcomes the drawback of prior art. Now, accompanying with the following drawings, the character of the present invention will be described here and after.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is a perspective view showing a traditional frame of a collapsible umbrella with two layers of cover.
FIG. 2 is a plan view showing an opening state of FIG. 1.
FIG. 3 is a perspective view showing a collapsible umbrella with two layers of cover.
FIG. 4 is a perspective view showing an umbrella frame according to the present invention.
FIG. 5 is a plan view showing an opening state of FIG. 4.
FIG. 6 is a perspective view showing another embodiment of the umbrella frame according to the present invention.
FIG. 7 is a plan view showing an opening state of FIG. 6.
FIG. 8 is a plan view showing an embodiment on a four-folded umbrella according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Please refer to FIG. 3 to 5, the present invention relates to a collapsible umbrella, which includes a frame, an upper-layer cover (3), and a lower-layer cover (4). The frame at least includes a first rib (1) and a second rib (2). In this example, the present invention is illustrated a three-folded umbrella that has a tail rib (5). The character of this invention is to extend an inner end of a second elastic rib (21) being bent outward to form a connecting end (22) that is provided for assembling the upper-layer cover (3). Since the connecting end (22) is a part of the second elastic rib (21), the manufacturing and assembling will be convenient. After a hook (12) mounted on the first rib (1), the umbrella is then completed for use.
As shown in FIG. 6 and 7, another embodiment is described that includes the connecting rib (2) of the elastic rib (21) for application on a manual collapsible three-folded umbrella. Under the same invented spirit, other modified design will be claimed in this application, such as to apply a similar structure on a four-folded umbrella, as shown in FIG. 4, wherein a connecting end (62) is formed on a third elastic rib (6) above the second rib (2) and the third rib (6).
Accordingly, the present invention will be allowed for patent and is therefore applied herein.
Patent Application
20070017562
