Waterproof storage bag

Abstract

A waterproof storage bag which comprises a bag body having an open end and a bag opening provided at the open end of the bag body to seal the bag body. The bag opening has inner surfaces which are smooth surfaces made of smooth and soft plastic material and the inner surfaces do not contain any self-adhesive material and are not disposed with any additional adhesive material thereon. A multi-porous resilient member is provided inside the bag body. It is an object of the present invention to provide a waterproof bag which could indicate to a user whether its waterproof function is still functioning properly. It has the advantages of simple structure, easy operation and low manufacturing costs.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to a storage bag and specifically relates to a waterproof storage bag being a commodity used in daily life.[0002]Currently, a waterproof storage bag generally comprises a bag body and a sealable opening. After a user has put an object such as a mobile phone, a camera or a portable personal computer into the bag body, the user could simply close the sealable opening so that water outside the bag body would not be able to enter the bag body. In general, the sealable opening could be tightened by a zipper. However, if a user inadvertently fails to fasten the zipper completely, or if the user fails to notice that the zipper is broken due to long-term use, water outside the bag body would then enter the bag body. As a result, the object inside the bag body would get wet and thus damaged. Therefore, there is a market demand for a waterproof bag which could indicate to a user whether its waterproof function is still functioning...

AI Technical Summary

Benefits of technology

[0012]Open the bag opening first and put the object into the bag body. After that, press air out of the bag body by hand and the multi-porous resilient member would then be compressed. After the air is pressed out, flatten the bag opening which comprises the smooth inner surfaces by hand or other soft objects so that the inner surfaces adhere to each other more smoothly. When the inner surfaces at two sides of the bag opening adhere to each other, there is neither air nor space between the two inner surfaces. Therefore, the two inner surfaces adhere to each other smoothly and automatically without any gap left between them so that water and air cannot pass through. At this time, air or water density as well as air pressure outside the bag body are high, while air pressure inside the bag body is low as there is less air. As a result, the inner surfaces are tightly adhered to each other and the bag body is then able to remain airtight and watertight.

[0013]As long as the bag body remains airtight and watertight, the multi-porous resilient member inside the bag body will not be able to absorb any air and therefore will not expand. Therefore, user would be able to know if the waterproof function of the bag body is normal by observing the expansion of the multi-porous resilient member. If the user's observation prior to disposing the bag body into water is that the multi-porous resilient member expands, the user is able to know immediately that the bag opening is not sealed properly. As such, the user could seal the bag opening again, therefore reducing the risk of damaging the object inside the bag body due to inflow of water into the bag body. Besides, since the bag body is nearly in a state of vacuum inside, if a product containing an electronic touch screen is disposed inside the bag body, there would not be any spaces left between the electronic touch screen and an inner surface of one side of the bag body. Therefore, even though the electronic touch screen is separated from the user by the bag body, the user could still be able to interact with the electronic touch screen and thus benefit from the convenience of operating an electronic product underwater. By virtue of the above design, the present invention has the advantages of simple structure as well as convenience and practicality in terms of use. Vacuum structure of the storage bag according to the present invention attains sealing effect mainly by mutually and tightly adhered smooth surfaces made of smooth and soft plastic material. Since the soft plastic material is relatively soft in texture and therefore easy to change its shape and restore its original condition, and since it is easier for smooth surfaces to adhere to each other and it is not easy to have gaps formed between the adhered surfaces, sealing effect is better whereas airtightness and watertightness are maintained for a longer period of time. Furthermore, the present vacuum storage bag does not contain any hard components and therefore would not break and damage the object inside the bag body or other objects adjacent to the bag body.

Problems solved by technology

However, if a user inadvertently fails to fasten the zipper completely, or if the user fails to notice that the zipper is broken due to long-term use, water outside the bag body would then enter the bag body.

As a result, the object inside the bag body would get wet and thus damaged.

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