Multi-Sectional Airtight Seal For Continuous Air-Filling And Air Valve Device Thereof

Abstract

A multi-sectional airtight seal for continuous air-filling includes: an input passage; plural first sub-tubes aligned parallel to a lateral side of the input passage; plural first valve devices including a first filling passage and a second filling passage with the first filling passage connecting the first sub-tubes and the input passage; plural second sub-tubes serially connecting the first sub-tubes; and plural second valve devices for connecting the second sub-tubes and the second filling passages to allow through-linking between the second sub-tubes and the input passage. When external air in the input passage enters through the first filling passage of the first valve device to fill and expand the first sub-tubes, the second sub-tube is filled through the second filling passage and the second valve device to be expanded as well.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description given hereinbelow illustration only, and thus are not limitative of the present invention, and wherein:

FIG. 1A is an explanatory diagram of an air-packing bag in the prior art before filling air (1).

FIG. 1B is a cross sectional view of the air-packing bag in the prior art after filling air.

FIG. 1C is an explanatory diagram of the air-packing bag in the prior art before filling air (2).

FIG. 1D is an explanatory diagram of the air-packing bag in the prior art after filling air.

FIG. 2A is a cross sectional view of another air-packing bag in the prior art after filling air.

FIG. 2B is an explanatory diagram of another air-packing bag in the prior art before filling air (1).

FIG. 2C is an explanatory diagram of another air-packing bag in the prior art before filling air (2).

FIG. 3A is an explanatory diagram for an air valve's structure of an air-packing bag in the prior art.

FIG. 3B is a cross sectional view for the air valve's structure of the air-packing bag in the prior art.

FIG. 4 is a plane view for the first embodiment of the present invention before filling air.

FIG. 5 is a cross sectional view for first embodiment of the present invention before filling air.

FIG. 5A is the cross sectional view of the portion A in FIG. 5.

FIG. 6 is a perspective view for the first embodiment of the present invention after filling air.

FIG. 7 is a cross sectional view for the second embodiment of the present invention after filling air.

FIG. 8 is a plane view for the third embodiment of the present invention before filling air.

FIG. 9 is a plane view for the fourth embodiment of the present invention before filling air.

FIG. 10 is a perspective view for the fifth embodiment of the present invention after filling air.

FIG. 11 is a plane view for the sixth embodiment of the present invention before filling air.

FIG. 12 is a cross sectional view for the sixth embodiment of the present invention after filling air.

FIG. 13 is a perspective view for the sixth embodiment of the present invention after filling air.

DETAILED DESCRIPTION OF THE INVENTION

Please refer to FIGS. 4, 5, 5A and 6, which illustrate the first embodiment of a multi-sectional airtight seal for continuous air-filling. FIG. 4 is a plane view before filling air; FIG. 5 is a cross sectional view after filling air; FIG. 5A is a cross sectional view for the portion A in FIG. 5; FIG. 6 is a perspective view after filling air.

The multi-sectional airtight seal for continuous air-filling includes an input passage 3, plural main air tubes 4, plural single-path valve devices 5, and plural auxiliary tubes 6.

The input passage 3 is operative as space formed by thermal-sealing the two outer films 2a and 2b, or space formed by thermal-sealing the two inner films 1a and 1b. The input passage 3 includes a pneumatic hole 31 for filling external air.

The plural main air tubes 4 are operative as air storage formed by thermal-sealing the two outer films 2a, 2b. The plural main air tubes 4 are aligned parallel to a lateral side of the input passage 3.

The plural single-path valve devices 5 are formed by applying heatproof material between the two inner films 1a, 1b and then thermal-sealing the two inner films 1a, 1b. The single-path valve device 5 includes a filling passage 51 for connecting the main air tube 4 and the input passage 3.

The plural auxiliary tubes 6 are located at the ends of the plural main air tubes 4. Each of the auxiliary tubes 6 includes a first sub-tube 61, a second sub-tube 62, the first valve device 63 and the second valve device 64.

The first sub-tube 61 is operative as air storage formed by thermal-sealing the two outer films 2a, 2b. The first sub-tube 61 is serially connecting with an end of the main air tube 4.

The second sub-tube 62 is also operative as air storage formed by thermal-sealing the two outer films 2a, 2b. The second sub-tube 62 is serially connecting with an end of the first sub-tube 61.

The first valve device 63 includes a first filling passage 631 and a second filling passage 632. The first filling passage 631 is formed by applying heatproof material between the two inner films 1c, 1d and thermal-sealing the two inner films 1c, 1d, thereby allowing through-linking between the first sub-tube 61 and the main air tube 4. The second filling passage 632 is formed by applying heatproof material between one of the inner films 1c and one of the outer films 2a and thermal-sealing one of the inner films 1c and one of the outer films 2a. The first filling passage 631 and the second filling passage 632 are located respectively at the left and right sides of the first valve device 63.

The second valve device 64 is formed by applying heatproof material between one of the inner films 1c and one of the outer films 2a, and thermal-sealing one of the inner films 1c and one of the outer films 2a. The second valve device 64 includes a filling passage 641 for connecting the second sub-tube 62 and the second filling passage 632, thereby allowing through-linking between the second sub-tube 62 and the main air tube 4.

In the structure described above, not each of the inner films has the same length. For example, the single-path valve device 5 has its inner films 1a, 1b with the same length, but the first valve device 63 has the inner film 1c longer than the inner film 1d. Furthermore, to apply heatproof material between the inner film and the outer film or between the two inner films by intervals provides airflow passages through the heatproof material.

When filling air, the external air enters the pneumatic hole 31 to expand the input passage 3, thereby pulling outwards the two inner films 1a, 1b to open the filling passage 51 of the single-path valve device 5 and allow the external air to enter and expand the main air tube 4. Next, the external air in the main air tube 4 will open the first filling passage 631 and the second filling passage 632 of the first valve device 63. Then some of the external air in the first filling passage 631 enters and expands the first sub-tube 61, while some of the external air enters the second valve device 64 through the second filling passage 632 and then enters and expands the second sub-tube 62 through the filling passage 641 of the second valve device 64.

After all the air tubes are expanded, the inner air pressure in the first sub-tube 61 will press the two inner films 1c, 1d to tightly attach to the outer film 2a, covering the first filling passage 631 to seal the first sub-tube 61. The inner air pressure in the second sub-tube 62 will press the inner film 1c to tightly attach to the outer film 2a, covering the filling passage 641 of the second valve device 64 to seal the second sub-tube 62. Meanwhile, the inner air pressure in the main air tube 4 presses the two inner films 1a, 1b to tightly attach to the outer film 2a, covering the single-path the filling passage 51 of valve device 5 to seal the main air tube 4. Therefore, the air in the main air tube 4, the first sub-tube 61 and the second sub-tube 62 will not leak out to achieve an airtight effect. So when any of the air tubes is broken, the structure disclosed by the present invention is capable of preventing the other air tubes from leaking air to maintain shock-absorption and cushion capabilities.

In addition, the air pressure in the main air tube 4, the first sub-tube 61 and the second sub-tube 62 will be equivalent. Therefore, when filling air the first filling passage 631 and the second filling passage 632 will maintain an equivalent pressure. The second filling passage 632 will not be sealed and cause the second sub-tube 62 unable to fill air if the first sub-tube 61 is pressed by its air pressure to cover the first filling passage 631. Hence, the structure disclosed by the present invention enables the main air tube 4, the first sub-tube 61 and the second sub-tube 62 to fill air at the same time. This not only accelerates the filling speed, the manufacturing cost may also be further reduced.

Please refer to FIG. 7, which is a cross sectional view according to the second embodiment of a multi-sectional airtight seal for continuous air-filling after filling air.

In the second embodiment, plural single-path valve devices 5 are formed by applying heatproof material between the two inner films 1a, 1b and thermal-sealing the two inner films 1a, 1b, thereby providing airflow passages through the heatproof material. The second valve device 64 is formed by applying heatproof material between the two inner films 1d, 1e and thermal-sealing the two inner films 1d, 1e. The second valve device 64 includes a filling passage 641 for connecting the second sub-tube 62 and the second filling passage 632 to allow through-linking between the second sub-tube 62 and the main air tube 4.

In the structure described above, each of the plural single-path valve devices 5 may be formed by applying heatproof material between one of the inner films 1a and one of the outer films 2a, and by thermal-sealing one of the inner films 1a and one of the outer film 2a, thereby providing a airflow passage through the heatproof material.

Please refer to FIG. 8, which is a plane view according to the third embodiment of a multi-sectional airtight seal for continuous air-filling before filling air.

The first valve device 63 of each of the plural auxiliary tubes 6 includes the first filling passage 631 and the second filling passage 632; wherein the first filling passage 631 is formed by applying heatproof material between one of the inner films 1d and one of the outer films 2, and by thermal-sealing one of the inner films 1d and one of the outer films 2b thereby connecting the first sub-tube 61 and the main air tube 4. The second filling passage 632 is formed by applying heatproof material between the two inner films 1c, 1d, and thermal-sealing the two inner films 1c, 1d. The second valve device 64 is formed by thermal-sealing the two inner films 1c, 1d. The second valve device 64 includes a filling passage 641 for connecting the second sub-tube 62 and the second filling passage 632, thereby allowing through-linking between the second sub-tube 62 and the main air tube 4.

Please refer to FIG. 9, which is a plane view according to the fourth embodiment of a multi-sectional airtight seal for continuous air-filling before filling air.

The structure disclosed in the fourth embodiment further includes a cutting line 8, located at the serial connecting portion between the first sub-tube 61 and the second sub-tube 62. Spilt along the cutting line 8 will separate the first sub-tube 61 and the second sub-tube 62. The cutting line 8 may be configured between plural main air tubes 4 and between plural auxiliary tubes 6. Then cutting along the cutting line 8 will separate the adjacent main air tubes 4 and separate the adjacent auxiliary tubes 6. Moreover, the airtight seal may be configured with cutting lines by poking-line means. The user may tear apart the air tubes along the cutting lines for independent use. The configuration of the cutting lines 8 enable the air tubes to be mass produced and used independently.

Please refer to FIG. 10, which is a perspective view according to the fifth embodiment of a multi-sectional airtight seal for continuous air-filling after filling air.

In the fifth embodiment, plural main air tubes 4 are aligned parallel respectively to the two lateral sides of the input passage 3. When filling air, the external air enters the pneumatic hole 31 and then expand the input passage 3 to open the filling passage 51 of the single-path valve device 5. Afterwards, the external air is allowed to enter and expand the main air tubes 4 at the two lateral sides of the input passage 3. Some of the external air enters through the first valve device 63 to expand the first sub-tube 61, while some of the external air enters through the first valve device 63 and the second valve device 64 to expand the second sub-tube 62.

The input passage 3 may be configured with a cutting line 8 thereon. After filling air and expanded, the main air tubes 4 and the auxiliary tubes 6 at the lateral sides of the input passage 3 may be torn apart along the cutting line respectively for independent use.

Please refer to FIGS. 11, 12 and 13, which illustrate the sixth embodiment of a multi-sectional airtight seal for continuous air-filling. FIG. 11 is a plane view before filling air; FIG. 12 is a cross sectional view after filling air; FIG. 13 is a perspective view after filling air.

The multi-sectional airtight seal for continuous air-filling mainly includes an input passage 3 and plural auxiliary tubes 6.

The input passage 3 is operative as space formed by thermal-sealing the two outer films 2a, 2b, or formed by thermal-sealing the two inner films 1c, 1d. The input passage 3 includes a pneumatic hole 31 for filling external air.

The plural auxiliary tubes 6 are located at the lateral side of the input passage 3. Each of the auxiliary tubes 6 includes first sub-tubes 61, second sub-tubes 62, first valve devices 63 and second valve devices 64.

The first sub-tube 61 is operative as air storage formed by thermal-sealing the two outer films 2a, 2b. The first sub-tube 61 is aligned parallel to the lateral side of the input passage 3.

The second sub-tube 62 is operative as air storage formed by thermal-sealing the two outer films 2a, 2b. The second sub-tube 62 is serially connecting with an end of the first sub-tube 61.

The first valve device 63 includes a first filling passage 631 and a second filling passage 632. The first filling passage 631 is formed by applying heatproof material between the two inner films 1c, 1d, and thermal-sealing the two inner films 1c, 1d, thereby allow through-linking between the first sub-tube 61 and the input passage 3. The second filling passage 632 is formed by applying heatproof material between one of the inner films 1c and one of the outer films 2a and thermal-sealing the inner film 1c and the outer film 2a.

The second valve device 64 is formed by applying heatproof material between one of the inner films 1c and one of the outer films 2a and thermal-sealing the inner film 1c and the outer film 2a. The second valve device 64 includes a filling passage 641 for connecting the second sub-tube 62 and the second filling passage 632 to allow through-linking between the second sub-tube 62 and the input passage 3.

In the structure described above, the inner film 1c of the first valve device 63 is longer than the inner film 1d. The heatproof material may be applied between the two inner films 1c, 1d by intervals, or between the inner film 1c and the outer film 2a, to provide airflow passages by the heatproof material. Besides, the serial connecting portion of the first sub-tube 61 and the second sub-tube 62 is configured with a cutting line 8. Splitting along the cutting line 8 will separate the first sub-tube 61 and the second sub-tube 62. The airtight seal may be configured with cutting lines by poking-line means for the user to tear apart the air tubes along the cutting lines for independent use.

Furthermore, the first filling passage 631 may be formed by applying heatproof material between the two inner films 1c, 1d and by thermal-sealing the two inner films 1c, 1d, or formed by applying heatproof material between the inner film 1c and the outer film 2b and by thermal-sealing the inner film 1c and the outer film 2b. The second filling passage 632 may be formed by applying heatproof material between the inner film 1c and the outer film 2a and by thermal-sealing the inner film 1c and the outer film 2a, or formed by applying heatproof material between the two inner films 1c, 1d and by thermal-sealing the two inner films 1c, 1d.

When filling air, the external air that enters the pneumatic hole 31 will expand the input passage 3 to pull out the two inner films 1c, 1d and open the first filling passage 631 of the first valve device 63, thereby enable the external air to enter and expand the first sub-tube 61. Meanwhile the external air in the input passage 3 will open the second filling passage 632 of the first valve device 63 to enter the second valve device 64 through the second filling passage 632, passing through the filling passage 641 of the second valve device 64, entering and expanding the second sub-tube 62 eventually.

After the first sub-tube 61 and the second sub-tube 62 are filled with air and expanded, the inner air pressure in the first sub-tube 61 will press the two inner films 1c and 1d to attach tightly to the outer film 2a, covering the first filling passage 631 to seal the first sub-tube 61. The inner air pressure in the second sub-tube will also press the inner film 1c to attach tightly to the outer film 2a, covering the filling passage 641 of the second valve device 64 to seal the second sub-tube 62, thereby preventing the external air in the first sub-tube 61 and the second sub-tube 62 from leaking out and an achieving airtight effect. Therefore, the structure disclosed by the present invention enables the first sub-tube 61 and the second sub-tube 62 to be filled at the same time. This not only accelerates the filling speed, but also further reduces the manufacturing cost. Besides, when any of the air tubes is broken, this structure may prevent the other air tubes from leaking air and maintain shock-absorption and cushion capabilities.

The invention being thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.

Claims

1. A multi-sectional airtight seal for continuous air-filling, formed by thermal-sealing two up-down stacked outer films and a plurality of inner films between the two outer films, comprising: an input passage, located between the two outer films;a plurality of main air tubes, aligned parallel to a lateral side of the input passage, operative as air storage formed by thermal-sealing the two outer films;a plurality of single-path valve devices, connecting the main air tube and the input passage; anda plurality of auxiliary tubes, located at an end of each of the plurality of main air tubes, each of the auxiliary tubes comprising: a first sub-tube, serially connecting with the main air tube, operative as air storage formed by thermal-sealing the two outer films;a second sub-tube, serially connecting with the first sub-tube, operative as air storage formed by thermal-sealing the two outer films; anda first valve device, comprising a first filling passage and a second filling passage, the first filling passage connecting the first sub-tube and the main air tube, the second filling passage connecting the second sub-tube and the main air tube.

2. The multi-sectional airtight seal of claim 1 further comprising a plurality of second valve devices, a filling passage being formed by applying heatproof material to partial surface of the inner film and thermal-sealing without attaching other films, thereby through-linking the second sub-tube and the input passage.

3. The multi-sectional airtight seal of claim 2, wherein the second valve device is formed by thermal-sealing one of the inner films and one of the outer films.

4. The multi-sectional airtight seal of claim 2, wherein the second valve device is formed by thermal-sealing two of the inner films.

5. The multi-sectional airtight seal of claim 1 further comprising a cutting line located at the serial connecting portion of the first sub-tubes and the second sub-tubes for being cut along to separate the first sub-tube and the second sub-tube.

6. The multi-sectional airtight seal of claim 1 further comprising a cutting line located between the plurality of first sub-tubes and between the plurality of second sub-tubes for being cut along to separate the adjacent plurality of first sub-tubes and to separate the adjacent plurality of second sub-tubes.

7. The multi-sectional airtight seal of claim 1, wherein the two inner films have different lengths.

8. The multi-sectional airtight seal of claim 1, wherein the input passage is space formed by thermal-sealing the two outer films.

9. The multi-sectional airtight seal of claim 1, wherein the input passage is space formed by thermal-sealing the two inner films.

10. The multi-sectional airtight seal of claim 1, wherein the single-path valve device has a filling passage formed by applying heatproof material to partial surface of the inner film and thermal-sealing without attaching other films.

11. The multi-sectional airtight seal of claim 10, wherein the single-path valve device is formed by thermal-sealing one of the inner films and one of the outer films.

12. The multi-sectional airtight seal of claim 1, wherein the single-path valve device is formed by thermal-sealing the two inner films.

13. The multi-sectional airtight seal of claim 1, wherein the first filling passage is formed by applying heatproof material between the two inner films and thermal-sealing the two inner films.

14. The multi-sectional airtight seal of claim 13, wherein the second filling passage is formed by applying heatproof material between one of the inner films and one of the outer films and thermal-sealing said inner film and said outer film.

15. The multi-sectional airtight seal of claim 1, wherein the first filling passage is formed by applying heatproof material between one of the inner films and one of the outer films and thermal-sealing said inner film and said the outer film.

16. The multi-sectional airtight seal of claim 15, wherein the second filling passage is formed by applying heatproof material between the two inner films and thermal-sealing the two inner films.

17. An air valve device of a multi-sectional airtight seal for continuous air-filling, configured in a plurality of serial-connecting air tubes formed by thermal-sealing two outer films to allow through-linking between the plurality of serial-connecting air tubes, the air valve device comprising: a upper inner film;a lower inner film, staked with the upper inner film;a first filling passage, formed by applying heatproof material between the upper inner film and the lower inner film and thermal-sealing the upper inner film and the lower inner film; anda second filling passage, formed by applying heatproof material between the upper inner film and one of the outer films and thermal-sealing the upper inner film and said outer film;wherein external air is filled through the first filling passage to expand one of the air tubes, and filled through the second filling passage to expand another one of the air tubes.

18. The air valve device of claim 17, wherein between the upper inner film and the lower inner film the heatproof material is applied by intervals.

19. The air valve device of claim 17, wherein the upper inner film and one of the outer films the heatproof material is applied by intervals.

20. The air valve device of claim 17, wherein the upper inner film is longer than the lower inner film.