This non-provisional application claims priority under 35 U.S.C. ยง119(a) on Patent Application No. 100150094 filed in Taiwan, R.O.C. on 2011 Dec. 30, the entire contents of which are hereby incorporated by reference.
The present invention relates to an air cylinder structure, and more particularly to a folding-clasp-typed cushioning air cylinder structure.
An air tight enclosure is made of resin film, and formed into air-tight air cylinders by means of hot sealing. Furthermore, an air filling entrance for air filling is disposed therein, allowing the air tight enclosure to cushion a packed object after air is filled into the air cylinders via the air filling entrance.
Among air-filling air cylinder technologies, there is a cushioning air bag with a free opening, or a hammock structure of cushioning air bag; however they all have a common problem, i.e. the air cylinder cylinders must be formed as a face body to have a cushioning force if a corner, rhomboidal angle or edge of the enclosure is hit when an internal object drops. But, when the object drops to hit the enclosure with an acute angle thereof, a single air cylinder must be used to response the edge or rhomboidal angle of the object. However, the air cylinder cannot withstand one-dot or one-line impact force such that the cushioning protection of the object cannot be effected.
To solve these technological problems, the present invention provides a folding-clasp-typed cushioning air cylinder; including two cushioning portions, a support portion and a plurality of clasp points, where an accepting space for receiving an object is formed between the two cushioning portions; the support portion is positioned between the two cushioning portions, the support portion includes a propping portion, two supporting section sections, and two connecting portions; the propping section includes a propping face and propping up the object, two ends of the propping section propping against the two cushioning portions; the two supporting sections are connected to two ends of the propping section; and, the two connecting portions respectively couple the two cushioning portions to the two respective supporting sections, the two connecting portions are substantially parallel to the propping section; and, the plurality of clasp points are positioned on the two supporting sections and couple the two cushioning portions to the two supporting sections.
In the present embodiment, the plurality of support portions on the plurality of cushioning portions can provide projecting and more highly strengthened propping faces to prop up an outer object after air filling to cushion and support it; the support portions can be used as assistance in the cushioning portions bearing the weight of an outer object and impact forces, thereby preventing the outer object from damage due to impact.
The present invention can be more fully understood by reference to the following description and accompanying drawings, in which:
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The air cylinder structure 100 of the present invention includes two cushioning portions 10, a support portion 40 and a plurality of clasp points 50.
The cushioning portion 10 has a plurality of air cylinders formed by stacking two sheets of outer film 10a together and then sticking them by means of hot sealing, and the peripheries of the cushioning portions are stuck to each other to form a bag structure, where the two sheets of outer film 10a respectively have corresponding inner faces, an accepting space 11 is formed among these face-to-face inner faces, and articles are therefore received in the accepting space 11. In addition, the cushioning portion 10 includes a plurality of hot sealing lines 16. In an exemplary embodiment, the two outer films 10a may be formed of a thermally activated hot-sealable material such as polyester, Polyethylene polypropylene copolymer, Polyethylene terephthalate (PET), ethylene ethyl acetate (EVA), polypropylene (PP), nylon (Nylon), and PE composite membrane, biodegradable material (biodegradable materials), the polymer material coated paper, or the like. But the present invention is not so limited, other materials may be used.
The support portion 40 is positioned between the two cushioning portions 10, and includes a propping section 41, two supporting sections 42 and two connecting portions 43, where the propping section 41 includes a propping face 411 for propping up an article, and two ends thereof props against the two cushioning portions 10; two supporting sections 42 are connected to the two ends of the propping section 41; the two connecting portions 43 connect the two cushioning portions 10 to the two respective supporting sections 42, where the two connecting portions 43 are substantially parallel to the propping section 41, but the present invention is not so limited. Preferably, the propping section 41, the two supporting sections 42 and the two connecting portions 43 can be formed into a shape such as an inverted triangle or square after being bent, but the present invention is not so limited. Whereby, an external object can be supported through buffer stretch provided by the support portion 40.
The plurality of clasp points 50 are positioned on the two supporting sections 42 and used to connect the two cushioning portions 10 to the two supporting sections 42, where the plurality of clasp points 50 are preferably positioned on the hot sealing lines 16 and clasp the two cushioning portions 10 and the two supporting sections 42 together, but the present invention is not so limited, where the plurality of clasp points 50 preferably stick the two outer films 10a together by means of hot sealing, but the present invention is not so limited; the plurality of clasp points 50 may clasp the two cushioning portions 10 and the two supporting sections 42 together by means of adhesion depending on practical uses. Particularly, the plurality of clasp points 50 may also be positioned on one of the two supporting sections 42 to couple the two supporting section 42 together instead of on the two supporting sections 42.
The present embodiment may further be disposed with an air valve 20, mainly constituted by two sheets of inner film 10. Air is guided to fill in the cushioning portions 10 through the disposition of the air valve 20 on one of the two cushioning portions 10, thereby providing the air filling and an automatic air closing function after the air filling. In the present embodiment, a plurality of air inlet 10e may be formed between the two sheets of inner film 10c; each air inlet 10e corresponds to one air cylinder; the structure of the air valve 20 here is merely exemplary, it is enough that a structure with the same effects is disposed depending on practical structure requirements. But, the present invention is not so limited, for example, each air cylinder has its own air valve 20, therefore, only one air inlet 10e is formed between the two sheets of inner film 10c of the air valve 20.
Particularly, the cushioning portion 10 includes an air filling passageway 9 adjacent to the position of the air valve 20. Hot sealing is used to generate hot sealing points 10d in the air filling passageway, thereby sticking the two sheets of outer film 10a to the two sheets of respective inner film 10c. The two sheets of inner film 10c can be driven to pull apart outward through the hot sealing points 10d to strengthen the opening of the air inlet 10e, because the two sheets of outer film 10a are expanded from a plane body to a three-dimensional curved body and pulled apart outward after air enters the air filling passageway 9.
The internal air pressure in the cushioning portion 10 presses two sides 10f of the two sheets of inner film 10c after the filling air enter the cushioning portion 10 via the air filling passageway 9 and air inlet 10e, causing the two sheets of inner film 10c to attach the each other to seal the air inlet 10e of the cushioning portion 10, and therefore allowing the air not to leak, thereby achieving an air locking effect. As a result, the two sheets of inner film 10c are compressed by the air to suspend in the cushioning 10, or the two sheets of inner film 10c might adhere to one of the two sheets of outer film 10a; the air presses the two sheets of inner film 10c to attach to any one of the two sheets of outer film 10a to seal the cushioning portion 10 after entering the cushioning portion 10.
In addition, the air inlet 10e may be formed by sticking the two sheets of inner film 10c together by means of hot sealing before the two sheets of inner film 10c are stacked between the two sheets of outer film 10a, where one end of the air inlet 10e is wider than another end thereof, allowing the easy entrance and difficult overflow of air, where the air inlet 10e is tapered from the air filling passageway 9 to the cushioning portion 10, the curved portion of the air inlet 10e is forced to close to achieve an airtight effect when the internal air pressure of the cushioning portion 10 grows larger, but, the present invention is not so limited, the air inlet 10e is not limited to a curved body; it may be a dotted body or other structures changed depending on practical design requirements. In addition, the same structure of the plurality of air inlets 10e may be disposed between the two sheets of inner film 10c, and the different structures thereof may also be mixed.
The above cushioning portion 10 may be connected with one air inlet 10e or the plurality of air inlets 10e, and each air inlet 10e may further be connected to one air filling passageway 9 or the plurality of air filling passageway 9. Furthermore, the plurality of juxtaposed cushioning portions 10 may be in air communication with one another, and may further share one air filling passageway 9 or the plurality of air filling passageways 9.
The present embodiment may also include a plurality of nodes 30, positioned on the inflatable cushioning portion 10, but the present invention is not so limited. The plurality of nodes 30 are configured such that the cushioning portion 10 positioned at the plurality of nodes 30 are bent into a plurality of nodal projecting bodies, which lie in between the two cushioning portions 10 after the cushioning portion 10 is expanded by the air entering the cushioning portion 10, where the nodes 30 are positioned on the cushioning portion 10, and a space interval 10b exists between the node 30 and the hot sealing line 16, allowing air to flow through this space interval 10b.
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Furthermore, the present embodiment may be stuck at the sides by means of hot sealing after being bent to form lateral hot sealing lines 13c at the sides, allowing the sheet to be formed into a cushioning air bag with four-face cushioning portions 10 for receiving an object.
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In the present embodiment, the plurality of support portions on the plurality of cushioning portions can provide projecting and more highly strengthened propping faces to prop against an outer object after air filling to cushion and support it; it can be used to assist the cushioning portions bearing the weight of an outer object and impact forces, thereby preventing the outer object from damage due to impact.
While the present invention has been described by the way of example and in terms of the preferred embodiments, it is to be understood that the invention need not be limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims, the scope of which should be accorded the broadest interpretation so as to encompass all such modifications and similar structures.
Number | Date | Country | Kind |
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100150094 | Dec 2011 | TW | national |