TWI856647B - Coreless air cushion bag with bending strength - Google Patents

Abstract

The invention provides a coreless air cushion bag with bending strength, it is an inflatable pouch structure, its opposite side forms an insertion edge and an inflection edge, the insertion edge and the inflection edge are relatively defined to form a flexible first abdominal side and a second abdominal side, the interior of the coreless air cushion bag forms an airbag space, the insertion edge to the inflection edge defines a usage insertion direction, the first abdominal side supports the insertion edge along the direction of insertion, and the bending strength of the first abdominal side along the use insertion direction is greater than the bending strength of the second abdominal side along the use insertion direction, there is no need to set the core material in the airbag space, enabling reduce material and assembly costs, and solve the problem that the core material may cause the composition around the airbag space to be pierced or damaged by the core material.

Description

Coreless air cushion bag with bending resistance

The present invention relates to an air cushion bag; in particular, to an air cushion bag with a coreless material and high bending strength, which has an innovative structural form.

The air cushion bag referred to in the present invention mainly utilizes the principle of gradual inflation of the airbag structure to prop up the target object and produce a moderate displacement action, thereby achieving its desired function. The air cushion bag is equipped with an inflatable accessory and can be applied to the sealing operation between doors and windows. The continuous support characteristics of the air cushion bag facilitate the application of the sealant. The air cushion bag can also be used to insert an inadvertently placed The inflatable accessory inflates the air cushion bag between the locked door and its door frame, and the air cushion bag forms a supporting effect, expanding the gap between the door and the door frame, so as to facilitate the tool to pass through the gap to perform the unlocking operation, without the need to use a pry bar to insert the gap to pry the door, causing damage to the door or the door frame. The application scope of the air cushion bag is not limited to the above two examples.

In the use of the air cushion bag, since it is usually necessary to insert a plug into a gap structure to perform the inflation operation, it must have a certain degree of anti-flexion stiffness (or stiffness) along the plug direction in order to smoothly perform this operation. In order to solve this problem, the current known air cushion bag products usually sandwich a metal sheet as a core material inside the airbag of the air cushion bag, thereby It can form a certain degree of rigid support effect. However, this known structural type is still found to have the following problems and disadvantages in actual application experience: for example, the use of the core material itself will increase the material and assembly costs to a certain extent, and because it is necessary to consider that the contour area of the air cushion bag will be relatively reduced after expansion, the maximum area of the core material is actually In theory, the outer contour area of the air cushion bag will be much smaller, but this will directly affect the originally expected rigid support effect. On the other hand, the smaller core material is arranged inside the airbag. When the airbag is not inflated or not fully inflated, the core material is easy to move inside the airbag or rotate within a certain angle range. The sharpness of the core material The edge can easily penetrate and damage the structure of the air cushion bag located on the side periphery of the airbag, affecting the structural strength of the airbag that can withstand the air pressure when inflated, and even causing the airbag to be damaged and unable to be inflated. Therefore, the core material needs to be further processed to avoid the formation of the aforementioned sharp edges and to make its corners rounded. This is indeed an important technical topic worthy of attention and breakthroughs from the relevant industry.

The main purpose of this invention is to provide a coreless air cushion bag with anti-bending strength. The technical problem it aims to solve is to think about and innovate on how to develop a new air cushion bag structure that is more ideal and practical.

Based on the above purpose, the technical features of the present invention for solving the problem are mainly that the coreless air cushion bag with anti-bending strength is an inflatable bag structure, and its opposite sides form an insertion edge and a folding edge, and the insertion edge and the folding edge are relatively defined to form a first abdominal side and a second abdominal side with flexibility, and the interior of the coreless air cushion bag forms an air bag space, and the insertion edge to the folding edge define a use insertion direction, and the first abdominal side supports the insertion edge along the use insertion direction, and the anti-bending strength of the first abdominal side along the use insertion direction is greater than the anti-bending strength of the second abdominal side along the use insertion direction.

The main effect and advantage of the present invention is that it is not necessary to set the core material composed of metal sheets in the airbag space, which can reduce the material and assembly costs and solve the problem that the placement of the core material may cause the structure around the airbag space to be pierced or damaged by the core material.

2:2-2 The cross section is shown in Figure 2

3:3-3The cross section is shown in Figure 3

4: Partial enlargement is shown in Figure 4

6: Partial enlargement is shown in Figure 6

8: Partial enlargement is shown in Figure 8

11: Partial enlargement is shown in Figure 11

100: Coreless air cushion bag

20: Insert edge

30: Folded edge

40: First abdominal side

41: Inner layer

42: Outer layer

43,44,45: Stripes

50: Second abdominal side

60: Airbag space

200: Inflatable accessories

W: Spacing

X: Use insert direction

Y: lateral direction

Z: Expansion direction

Figure 1 is a three-dimensional diagram of an inflatable accessory set in an embodiment of the present invention.

Figure 2 is a cross-sectional view of the portion marked 2-2 in Figure 1.

Figure 3 is a cross-sectional view of the portion marked 3-3 in Figure 1.

Figure 4 is an enlarged view of the area marked 4 in Figure 3.

Figure 5 is a cross-sectional view of the second embodiment of the present invention along the horizontal direction.

Figure 6 is an enlarged view of the area marked 6 in Figure 5.

Figure 7 is a cross-sectional view of the third embodiment of the present invention along the horizontal direction.

Figure 8 is an enlarged view of the area marked 8 in Figure 7.

Figure 9 is a cross-sectional view of the fourth embodiment of the present invention along the horizontal direction.

Figure 10 is a three-dimensional diagram of an inflatable accessory in the fifth set of embodiment of the present invention.

Figure 11 is a cross-sectional view of the portion marked 11-11 in Figure 10.

The figures show several embodiments of the coreless air cushion bag with bending resistance of the present invention, but these embodiments are for illustrative purposes only and are not limited to this structure in patent applications.

Embodiment 1 is a preferred embodiment of the present invention. As shown in FIGS. 1 to 4 , the coreless air cushion bag 100 is an inflatable bag structure. The coreless air cushion bag 100 is mainly made of sheet materials with low tensile strain rate and ductility, which are folded and pasted, and are heat-pressed and bonded at several edges before being shaped and cut. The coreless air cushion bag 100 forms an insertion edge 20 and a folded edge 30 on different sides. The insertion edge 20 is a side formed by the heat-pressed bonding of the sheet materials, and the folded edge 30 is a side formed by folding the sheet materials without heat-pressed bonding. The insertion edge 20 and the folded edge 30 are relatively defined to form a space. The first abdominal side 40 and the second abdominal side 50 are flexible. The interior of the coreless air cushion bag 100 forms an airbag space 60. An inflatable accessory 200 is connected to the folded edge 30 and connected to the airbag space 60. By operating the inflatable accessory 200, air can enter or leave the airbag space 60 through the inflatable accessory 200, thereby inflating or releasing the air inside the airbag space 60. The inflatable accessory 200 is an existing accessory familiar to people in the field of the present invention, and the inflatable accessory 200 has nothing to do with the technical features of the present invention. The specific structure of the inflatable accessory 200 will not be described in detail.

The insertion edge 20 to the folded edge 30 defines an insertion direction X, and a transverse direction Y is defined to be orthogonal to the insertion direction X. The first abdominal side 40 to the second abdominal side 50 defines an expansion direction Z, and the expansion direction Z is orthogonal to the insertion direction X and the transverse direction Y. Specifically, the insertion direction X points to the direction of use of the coreless air cushion bag 100 inserted into a gap (not shown), and the expansion direction Z refers to the airbag space 60. When inflated, the air pressure forces the first abdominal side 40 and the second abdominal side 50 to push against the directions formed by the peripheries of the two opposite sides of the slit, respectively. The first abdominal side 40 and the second abdominal side 50 are opposite to each other along the inflation direction Z, and the first abdominal side 40 supports the insertion edge 20 along the insertion direction X, and the bending strength of the first abdominal side 40 along the insertion direction X is greater than the bending strength of the second abdominal side 50 along the insertion direction X.

Regardless of whether the coreless air cushion bag 100 is expanded or not expanded due to air entering the airbag space 60, the first abdominal side 40 can support the insertion edge 20 along the insertion direction X. When the coreless air cushion bag 100 is used to push against the peripheral structure located at two opposite sides of the gap, the insertion edge 20 is located on the side of the coreless air cushion bag 100 facing the gap. The coreless air cushion bag 100 is not expanded along the insertion direction X. The first abdominal side 40 supports the insertion edge 20 along the insertion direction X, so that the insertion edge 20 can easily enter the gap. The insertion edge 20 is not easily deformed by the resistance of the peripheral structure, which can solve the problem that the core material of the known air cushion bag recorded in the prior art cannot provide rigid support when the air cushion bag is not expanded, which may cause difficulty in inserting into the gap.

After the coreless air cushion bag 100 enters the gap, the inflatable accessory 200 is operated to infuse air into the airbag space 60, forcing the airbag space 60 to expand along the expansion direction Z. The second abdominal side 50 is more likely to bend and deform in the use insertion direction X under the air pressure from the airbag space 60 than the first abdominal side 40, thereby satisfying the purpose of the coreless air cushion bag 100 expanding and pushing against the peripheral structure.

The present invention does not need to set the core material made of metal sheets in the airbag space 60 as described in the prior art, which can reduce material and assembly costs and solve the problem that the placement of the core material may cause the surrounding structure of the airbag space 60 to be pierced or damaged by the core material.

Specifically, the first abdominal side 40 is mainly composed of a double-layer structure composed of an inner sheet 41 and an outer sheet 42 stacked in the thickness direction, thereby improving the support strength of the first abdominal side 40 to the insertion edge 20. The inner sheet 41 is formed by folding the sheet material toward the airbag space 60. The inner sheet 41 forms a distance W from the folded edge 30 on the side away from the insertion edge 20 in the insertion direction X. Therefore, when air enters the airbag space 60 to cause the coreless air cushion bag 100 to expand, the part of the first abdominal side 40 that does not form the inner sheet 41 is easy to cooperate with the folded edge 30 to form a bulging deformation.

The inner sheet 41 and the outer sheet 42 are locally heat-pressed and bonded, so that the inner sheet 41 forms a plurality of long stripes 43 along the transverse direction Y, and the outer sheet 42 also forms a plurality of long stripes 44 along the transverse direction Y. The two ends of each of the strips 43 and 44 point to the insertion edge 20 and the folding edge 30 respectively, thereby improving the bending strength of the first abdominal side 40 along the insertion direction X, thereby strengthening the support strength of the first abdominal side 40 to the insertion edge 20.

In this example, each of the stripes 43 and 44 is selected to be curved along the transverse direction Y, and each of the stripes 43 and 44 is respectively separated from the folded edge 30 by a distance W. Specifically, each of the stripes 43 is mainly formed by the inner layer sheet 41 along the thickness direction toward the second abdominal side 50, and each of the stripes 44 is mainly formed by the outer layer sheet 42 along the thickness direction toward the direction away from the second abdominal side 50.

As shown in FIG. 5 and FIG. 6 , the main difference between the structure of the second embodiment and the first embodiment is that the inner layer sheet 41 of the second embodiment does not form the stripe 43.

As shown in FIG. 7 and FIG. 8 , the main difference between the third embodiment and the first embodiment is that the outer layer 42 of the third embodiment does not form the stripe 44.

As shown in FIG. 9 , the structure of the fourth embodiment is mainly different from that of the first embodiment in that the first abdominal side 40 is a single-layer structure, and a portion of the first abdominal side 40 is formed by compression molding to form a plurality of rib-shaped stripes 45, each of which is formed in sequence along the transverse direction Y, and each of which is selected to be curved along the transverse direction Y, and the two ends of each of which are directed toward the insertion edge 20 and the folded edge 30, respectively, thereby improving the bending strength of the first abdominal side 40 along the insertion direction X, thereby strengthening the support strength of the first abdominal side 40 to the insertion edge 20, and each of which is separated from the folded edge 30 by a distance W.

As shown in FIG. 10 and FIG. 11 , the main difference between the fifth embodiment and the first embodiment is that the inner layer sheet 41 of the fifth embodiment does not form the stripe 43, and the outer layer sheet 42 does not form the stripe 44.

2:2-2 The cross section is shown in Figure 2

3:3-3The cross section is shown in Figure 3

100: Coreless air cushion bag

20: Insert edge

30: Folded edge

40: First abdominal side

44: Stripes

200: Inflatable accessories

W: Spacing

X: Use insert direction

Y: lateral direction

Z: Expansion direction

Claims (3)

A coreless air cushion bag with anti-bending strength, the coreless air cushion bag is an inflatable bag structure, the opposite sides of which form an insertion edge and a folding edge, the insertion edge and the folding edge relatively define a first abdominal side and a second abdominal side with flexibility, the interior of the coreless air cushion bag forms an air bag space, the insertion edge to the folding edge defines an insertion direction for use, the first abdominal side The first abdominal side supports the insertion edge along the insertion direction, and a transverse direction is defined to be orthogonal to the insertion direction, and the first abdominal side forms a plurality of stripes along the transverse direction, and the two ends of each strip point to the insertion edge and the folded edge respectively, thereby improving the bending strength of the first abdominal side along the insertion direction, thereby strengthening the support strength of the first abdominal side to the insertion edge. The coreless air cushion bag with bending strength as described in claim 1, wherein the first abdominal side is mainly composed of a double-layer structure composed of an inner layer sheet and an outer layer sheet stacked in the thickness direction, thereby improving the support strength of the first abdominal side to the insertion edge; the inner layer sheet and the outer layer sheet are locally hot-pressed and bonded, so that the first abdominal side forms the stripes at intervals along the transverse direction. As described in claim 1, the coreless air cushion bag with bending strength, wherein the first abdominal side is a single-layer structure, a portion of the first abdominal side is compression-molded to form a plurality of rib-shaped stripes, each of which is formed in sequence along the transverse direction, and the two ends of each of the strips point to the insertion edge and the folded edge respectively, thereby improving the bending strength of the first abdominal side along the insertion direction, thereby strengthening the support strength of the first abdominal side to the insertion edge; and wherein each of the strips is spaced apart from the folded edge.

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