Inflatable gas bag having auxiliary gas pockets
An inflatable gas bag having auxiliary gas pockets is compose of a plurality of gas pocket units, each of gas pocket units includes a main gas pocket of bigger width and a plurality of auxiliary gas pockets of smaller width. A welding line is located between a main gas pocket and an auxiliary gas pocket, and between two auxiliary gas pockets. The conduits are arranged on said welding lines in a predetermined distance, through which gas in the main gas pocket and a plurality of auxiliary gas pockets can be transferred. The gas pocket units are isolated such that gas can not be transferred between each other. In case any main or auxiliary gas pockets are broken, gas could still be contained in other gas pockets units. The present invention provides a plurality of auxiliary gas pockets to absorb the pressurized gas from main gas pocket during impact and therefore be able to protect articles from exterior impact more effectively.
1. Field of the Invention
The present invention is related to an inflatable gas bag having auxiliary gas pocket and particularly to an gas bag that is composed of a plurality of gas pocket units, each of gas pocket units includes a main gas pocket of bigger width and a plurality of auxiliary gas pockets of smaller width. The gas in the main gas pocket and a plurality of auxiliary gas pockets can be transferred through conduits. The inflatable gas bag of the present invention is able to protect articles from exterior impact more effectively.
2. Brief Description of Related Art
Traditional device for protecting articles packaged therein is bubble wrap. It is able to absorb exterior impact by a plurality of uniform air pockets. The ability of absorbing impact is limited because the air pockets are too small.
U.S. Pat. No. 6,149,002 and U.S. Pat. No. 6,415,920 disclose a container having a wall member, a front panel, and a rear panel. The rear panel, the front panel and the wall member is a unitary, blow molded member including a generally rigid shell, and a plurality of flexible membranes each of which has a periphery and a surface. The flexible membranes are bonded to the generally rigid shell. The surfaces of the flexible membranes are separated from the generally rigid shell to form a plurality of unbounded areas between the surfaces of the flexible membranes and the generally rigid shell. Air is contained within the unbounded areas, thereby forming a plurality of air pockets between the flexible membranes and the generally rigid shell. Most of the air pockets may be broken at the same time under severe mechanical shock when over pressure build up in the bubbles.
SUMMARY OF THE INVENTIONAn object of the present invention is to provide an inflatable gas bag having auxiliary gas pockets which absorb the high pressure gas in main gas pockets during impact, to avoid the main gas pockets broken. Due to damping effect when gas is force to flow from main gas pockets to auxiliary gas pockets through valve in between, impact energy are dissipated more effectively.
Another object of the present invention is to provide an inflatable gas bag having auxiliary gas pockets, which is able to protect articles from exterior impact more effectively.
In order to achieve the preceding objects, the inflatable gas bag having auxiliary gas pockets is compose of a plurality of gas pocket units, each of which includes a main gas pocket of bigger width and a plurality of auxiliary gas pockets of smaller width, a main gas pocket is wider than an auxiliary gas pocket in a predetermined width, a welding line is located between a main gas pocket and a auxiliary gas pocket, and another welding line is located between two auxiliary gas pockets, conduits are arranged on said welding lines in a predetermined distance, through which gas in the main gas pocket and a plurality of auxiliary gas pockets can be transferred, a gas pocket unit is side by side with another, and a welding line without any conduit is located between two of them, said gas pocket units are isolated that gas can not be transferred between each other, thereby, in case any main or auxiliary gas pockets of the gas pocket units are broken, gas in other gas pockets remain intact.
BRIEF DESCRIPTION OF THE DRAWINGSThe detail structure, the applied principle, the function and the effectiveness of the present invention can be fully understood with reference to the following description and accompanying drawings, in which:
Referring to
Referring to
Further, folding lines 41, 42, 43, 44 are appropriately located at each main and auxiliary gas pocket 11, 121, 122, in order to allow bending of each main and auxiliary gas pockets 11, 121, 122, after the bag is charged with gas. Successive folding at 35, 41, 42, 43, 44 will form a closed envelope to protect article inside against impact from any direction.
Referring to
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While the invention has been described with referencing to preferred embodiments thereof, it is to be understood that modifications or variations may be easily made without departing from the spirit of this invention, which is defined by the appended claims.
Claims
1-8. (canceled)
9. An inflatable gas bag having auxiliary gas pockets comprising
- an upper film
- a lower film;
- a plurality of gas pocket units which are isolated so that gas can not be transferred between each other, and side by side between each, and consist of a main gas pocket and a plurality of auxiliary gas pockets;
- a welding line having conduits sat between main gas pocket and auxiliary gas pocket and between two auxiliary gas pockets;
- a gas inlet on one side of the inflatable gas bag;
- a gas channel extended from the gas inlet and connecting to each of main and auxiliary gas pockets, though which gas can be entered;
- characterized in that the width of main gas pocket is bigger than that of auxiliary gas pockets, therefore the main gas pocket will be thicker than auxiliary gas pockets after charged with gas, the main gas pocket will absorb the impact and be compressed first, and the pressurized gas in the main gas pocket will be pressed into auxiliary gas pockets via conduit when the inflatable gas bag suffers from exterior impact.
10. The inflatable gas bag having auxiliary gas pockets as defined in claim 9, wherein the width of main gas pocket is bigger than auxiliary gas pockets at least 1 centimeter.
Type: Application
Filed: Jan 24, 2006
Publication Date: Jul 26, 2007
Inventors: Cheng-Yung Chen (Taipei), Hung-Pin Lai (Taipei)
Application Number: 11/337,901
International Classification: B65D 81/02 (20060101); B65D 30/00 (20060101);