Umbrella structure having at least one mushroom-shaped hub for enabling rapid assembly of main rod and supporting members

Abstract

The present invention is to provide an umbrella structure including at least one mushroom-shaped hub, a plurality of supporting members, and a main rod. Each mushroom-shaped hub has a hollow tubular body, two openings at two opposite ends respectively, and a cap portion located near a first opening and formed with a plurality of evenly distributed grooves which extend in the radial direction of the first opening. The supporting member has one end whose diameter is less than the diameter of the first opening but greater than the width of each groove and which therefore can pass through the first opening and be received in the cap portion. Thus, when the main rod penetrates the two openings, the end of each supporting member can be limited in position in the cap portion, and the remaining portion thereof can extend out of the cap portion and move along the groove accordingly.

Description

FIELD OF THE INVENTION[0001]The present invention relates to an umbrella structure, more particularly to hubs 1A, 2A, 3A of a conventional umbrella (as shown in FIG. 1) for connecting supporting members 5A, 6A, 7A to main rod 9A of the conventional umbrella respectively. As referring to FIG. 2, the present invention utilizes a brand-new mushroom-shaped hub 1, 2, 3 to replace the conventional hub 1A, 2A, 3A. Each mushroom-shaped hub 1, 2, 3 is configured to accommodate and limit one end of a supporting member 5, 6, 7 therein and allow the remaining portion of the supporting member 5, 6, 7 to extend out of the mushroom-shaped hub 1, 2, 3 when a main rod 9 penetrates two opposite openings of the mushroom-shaped hub 1, 2, 3, so as to rapidly assemble the umbrella and effectively reduce the production cost of the umbrella.BACKGROUND OF THE INVENTION[0002]Referring to FIG. 1, a conventional umbrella has hubs 1A, 2A, 3A for connecting the supporting members 5A, 6A, 7A to the main rod 9A re...

AI Technical Summary

Benefits of technology

The joint-type connection and smooth movement between the supporting members and mushroom-shaped hubs in this patent make assembly quicker and more cost-effective. The structure is also sturder and durable. These features overcome the labor-intensive and time-consuming assembly process and vulnerability of breakage of metal wires in conventional umbrellas.

Problems solved by technology

Each of the hubs 1A, 2A, 3A is connected to the corresponding supporting members by passing a metal wire through one of the through holes on the hub and the through hole at one end of each of the corresponding supporting members and then tying the ends of each metal wire, which is both labor-intensive and time-consuming.

Moreover, once the umbrella has been opened and closed for a good number of times, the metal wires or the through hole at one end of each supporting member 5A, 6A, 7A is very likely to break or be damaged, thus preventing normal operation of the umbrella or causing great inconvenience in use.

Images