Foldable Luggage Bag

Abstract

A foldable luggage bag includes a collapsible luggage body, a rigid reinforcing member, and a wheel seat arrangement. The collapsible luggage body has a top surface, a bottom surface, a plurality of side surfaces extended between the top surface and the bottom surface, and a receiving cavity. The rigid reinforcing member has a bottom reinforcing portion mounted at the bottom surface, a plurality of side reinforcing portions formed on lower portions of the side surfaces of the collapsible luggage body, and a plurality of curved reinforcing portions integrally extended between the bottom reinforcing portion and the side reinforcing portions of the rigid reinforcing member respectively. The wheel seat arrangement includes a plurality of wheel seats and a plurality of rolling wheels received in the wheel seat, so that the collapsible luggage body is rotatably supported by the rolling wheels and is substantially protected by the rigid reinforcing member.

Description

CROSS REFERENCE OF RELATED APPLICATION[0001]This is a non-provisional application that claims the benefit of priority under 35 U.S.C. §119 to a non-provisional application, application No. 61 / 682,189, filed Aug. 10, 2012.BACKGROUND OF THE PRESENT INVENTION[0002]1. Field of Invention[0003]The present invention relates to a luggage bag, and more particularly to a foldable luggage bag which comprises a rigid reinforcing member for substantially reinforcing a bottom portion of the foldable luggage bag.[0004]2. Description of Related Arts[0005]Referring to FIG. 1A to FIG. 1C of the drawings, a conventional foldable luggage bag comprises a container body 10P having an upper portion 11P, a lower portion 12P, and a zipper 13P provided at a boundary between the upper portion 11P and the lower portion 12P for selectively allowing extension or collapse of the lower portion 12P of the container body 10P. The container body 10P must have a receiving cavity formed therein for receiving external o...

AI Technical Summary

Benefits of technology

The invention is a foldable luggage bag with a rigid reinforcing member that provides water-proof, impact-resistance, and flip-resistance effects to the bottom reinforcing portion of the bag. Additionally, the invention includes a wheel seat arrangement that allows for easy movement and protection of the foldable luggage bag. The collapsible luggage body and rigid reinforcing member can be securely combined to form a compact and rigid casing with the rigid reinforcing member having reinforcing ribs to prevent twisting. The invention is easy to manufacture and does not involve expensive and complicated mechanical components.

Problems solved by technology

As a result, when the foldable luggage bag is subject to a large loading (because of heavy luggage) and a sideward pulling force, the corner portions formed between the bottom fabric 15P and the corresponding side fabric 16P becomes points of stress concentration and may break very easily.

However, it does not prevent the points of stress concentration from accidentally or, ordinarily indeed, breaking because all the stress is concentration at certain points of the foldable luggage bag.

Thus, although the volume of the foldable luggage bag can be increased substantially due to its extendable feature, the structural integrity of the foldable luggage bag is not correspondingly reinforced or improved to prevent the occurrence of the disadvantages stemming from increasing the volume of the foldable luggage bag.

Since the bottom fabric 15P is usually made by nylon, it is extremely vulnerable to external scratching.

This reflects another weakness in association with the above-mentioned conventional foldable luggage bag.

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