Cushion airbag pad and method for manufacturing the same

Abstract

This disclosure provides a cushion airbag pad and a method for manufacturing the same that enable reliable unidirectional air injection into the airbag. [Solution] The cushion airbag pad comprises a cushion body including a main body, a plurality of airbags, and a plurality of air passages, and a unidirectional air injection member having a thin, flake-like structure and attached inside the air-injection airbag, wherein a first embossed portion is formed on the main body, and the first embossed portion overlaps and contacts at least a part of the unidirectional air injection member, the hardness of the portion of the main body corresponding to the first embossed portion is greater than the hardness of the portion of the main body corresponding to the unidirectional air injection member, and the portion corresponding to the unidirectional air injection member does not overlap with the first embossed portion.

Description

Technical Field

[0001] This application is a continuation-in-part of U.S. Patent Application No. 18 / 687,908, filed on February 29, 2024, the entire content of which is incorporated herein by reference. This application also claims priority to the following U.S. patent applications and Chinese patent applications. 1. Application No. 19 / 031,813, filed on January 18, 2025, with the title "CUSHION AIRBAG PAD AND MANUFACTURE METHOD THEREOF"; 2. Application No. 202411912735.1, filed on December 23, 2024, with the title "Cushion airbag pad and manufacturing method of cushion airbag pad".

[0002] This disclosure relates to the field of household appliances, and particularly to a cushion airbag pad and a manufacturing method thereof.

Background Art

[0003] As a product that provides pressure buffering, cushion airbag pads are widely used in various products. For example, they are used in cushion pads such as the shoulder belts of bags, zabutons, cushions, mattresses, and shoe soles, and can buffer the pressure on the contact parts of users.

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in conventional airbag pads, some of the air filled in the airbag of the airbag pad gradually leaks out to the outside through the air inlet, resulting in a slow air leakage phenomenon in the entire airbag pad. After using the cushion for a certain period, the air in the airbag is insufficient, so it is necessary to reinflate (inject air) again, causing inconvenience in use.

[0005] Therefore, a cushion airbag pad that enables reliable unidirectional air injection into the airbag and a method for manufacturing the same are required. In light of the above circumstances, this application aims to provide a cushion airbag pad that enables reliable unidirectional air injection into the interior of an airbag, and a method for manufacturing the same. [Means for solving the problem]

[0006] A first aspect of the present invention provides a cushion airbag pad. The cushion body includes a main body, a plurality of airbags, and a plurality of air passages, wherein two adjacent airbags among the plurality of airbags are in communication via a corresponding one of the plurality of air passages, and one of the plurality of airbags is an inflatable airbag; and a unidirectional air injection member has a flaky structure and is attached inside the inflatable airbag, configured to guide the airflow in one direction into the interior of the plurality of airbags, wherein a first embossed portion is formed on the main body, the first embossed portion overlaps and contacts at least a part of the unidirectional air injection member, the hardness of the portion of the main body corresponding to the first embossed portion is greater than the hardness of the portion of the main body corresponding to the unidirectional air injection member, and the portion of the main body corresponding to the unidirectional air injection member does not overlap with the first embossed portion.

[0007] A second aspect of the present invention provides a method for manufacturing a cushion airbag pad. The manufacturing method includes the steps of: preparing a first cushion layer and a second cushion layer, wherein the first cushion layer defines a plurality of airbag regions, a cushion compression region surrounding the airbag regions, and an air injection member compression region where the air inlet end of a thin, unidirectional air injection member is located, and the air injection member compression region overlaps with a part of the cushion compression region; installing the thin, unidirectional air injection member between the first cushion layer and the second cushion layer, and positioning the air inlet end of the thin, unidirectional air injection member in the air injection member compression region; and the air injection part The method includes the steps of: pressing the first cushion layer, the second cushion layer, and the unidirectional air injection member corresponding to the material pressing region together; and pressing the first cushion layer and the second cushion layer corresponding to the cushion pressing region together, wherein at least one embossed portion is formed in the overlapping region of the air injection member pressing region and a portion of the cushion pressing region, a plurality of airbag pads are formed in the airbag region, and the hardness of the at least one embossed portion is greater than the hardness of the portion of the air injection member pressing region excluding the at least one embossed portion.

[0008] According to the present invention, it is possible to provide a cushion airbag pad that enables reliable unidirectional air injection into the airbag, and a method for manufacturing the same. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic plan view showing an example of a manufactured cushion airbag pad in this disclosure. [Figure 2] This is a schematic plan view showing an example of a manufactured cushion airbag pad in this disclosure. [Figure 3] This is a schematic cross-sectional view along the line III-III in Figure 1. [Figure 4] This is a schematic plan view showing a unidirectional air injection member used in the cushion airbag pad of the present disclosure. [Figure 5]This is a schematic exploded perspective view showing a unidirectional air injection member used in a cushion airbag pad of the present disclosure. [Figure 6] This is a schematic plan view showing an example of a manufactured cushion airbag pad in this disclosure. [Figure 7] This is a schematic plan view showing an example of a manufactured cushion airbag pad in this disclosure. [Figure 8] This flowchart shows an example of a method for manufacturing a cushion airbag pad according to this disclosure. [Figure 9] This is a schematic plan view showing another example of a cushion airbag pad of the present disclosure. [Figure 10] This flowchart shows another example of a method for manufacturing a cushion airbag pad according to this disclosure. [Modes for carrying out the invention]

[0010] To further clarify the aforementioned objectives, features, and advantages of this disclosure, the technical solutions in the embodiments of this disclosure will be described below clearly and completely with reference to the drawings of the embodiments. The embodiments and features of the embodiments of this disclosure can be combined with each other, insofar as they do not conflict. First Embodiment

[0011] Figure 1 shows a cushion airbag pad 1000 of this embodiment, which comprises a cushion body 10 and an inflatable / deflated component (not shown) provided on the cushion body 10.

[0012] The cushion body 10 includes a main body 1 and a plurality of airbags 100 and air passages 200 formed protruding from the main body 1. The plurality of airbags 100 and air passages 200 protrude toward at least one surface of the cushion body 10, and two adjacent airbags 100 communicate with each other through the air passages 200. The cushion body 10 does not protrude throughout the main body 1, but surrounds the outer periphery of the plurality of airbags 100 and air passages 200.

[0013] The cushion body 10 is provided with an inflation / deflation component for controlling the inflation and deflation of multiple airbags 100. The inflation / deflation component includes an inflation component 300 and a deflation component 400. The inflation component 300 is used to control the inflation of multiple airbags 100, ensuring that air enters the interior of the multiple airbags 100 in one direction and preventing air from being expelled to the outside. The inflation component 300 includes at least a unidirectional air injection member 330, which is a member capable of achieving unidirectional air injection and is positioned inside the airbag 100.

[0014] Specifically, as shown in Figures 1 and 3, the cushion body 10 is an integral structure formed by laminating a first cushion layer 101 and a second cushion layer 102. The first cushion layer 101 and the second cushion layer 102 include heat-sealable flexible materials, such as polyether TPU, polyester TPU (thermoplastic polyurethane), PVC, EVA, or other heat-sealable flexible materials. The first cushion layer 101 and the second cushion layer 102, which are superimposed on each other, are pressed together by means such as welding to form an integral cushion body 10. A portion of the second cushion layer 102 and a portion of the first cushion layer 101 are pressed together to form the body 1, and the body 1 is a region where the second cushion layer 102 and the first cushion layer 101 are closely bonded and do not protrude when expanded. Furthermore, the other parts of the second cushion layer 102 and the other parts of the first cushion layer 101 are not bonded to each other, but are arranged on the first cushion layer 101 in a predetermined shape, forming a plurality of airbags 100 and a plurality of air passages 200 that protrude away from the second cushion layer 102. The air inside the plurality of airbags 100 and the plurality of air passages 200 is sealed from the outside of the cushion body 10.

[0015] Furthermore, the multiple airbags 100 and the multiple air passages 200 can be arranged in a convex shape on one or both of the first cushion layer 101 and the second cushion layer 102. The multiple airbags 100 and the multiple air passages 200 arranged in a convex shape are formed by first forming a convex shape on the two cushion layers and then pressing the first cushion layer 101 and the second cushion layer 102 together. Therefore, after the cushion body 10 is formed, the multiple airbags 100 and the multiple air passages 200 are convex even when not inflated, and are prone to collapsing when pressed together. Also, after inflation (air injection), the airbags 100 are filled and are less prone to collapsing when pressed together. Furthermore, the first cushion layer 101 and the second cushion layer 102 do not need to be formed in a convex shape beforehand. In such a cushion airbag pad 1000, the cushion airbag pad is flat when not inflated and forms a bidirectional convex shape when inflated.

[0016] The main body 1 includes a first press-fit portion 10A, a second press-fit portion 10B, and a first embossed portion 10C. A portion of the main body 1 is pressed (compressed) once at the first press-fit portion 10A, and a portion of the main body 1 is pressed once at the second press-fit portion 10B in a process different from the press-fit process that forms the first press-fit portion 10A. In a plan view, the first press-fit portion 10A overlaps and contacts at least a portion of the air supply portion 3301 of the one-way air injection member 330, and the first embossed portion 10C also overlaps and contacts at least a portion of the air supply portion 3301 of the one-way air injection member 330. At the first embossed portion 10C, a portion of the main body 1 is pressed twice, and the first embossed portion 10C is connected to both the first press-fit portion 10A and the second press-fit portion 10B, and is interposed between the first press-fit portion 10A and the second press-fit portion 10B. The inflatable airbag 121 is jointly surrounded by a first pressure-joint portion 10A, a second pressure-joint portion 10B, and a first embossed portion 10C. At the first embossed portion 10C, the outer surface of at least one of the cushion layers of the cushion body 10 (i.e., the first cushion layer 101 and / or the second cushion layer 102) is embossed.

[0017] The embossment presented by the first embossment part 10C may be an embossment formed by the melting and pressing together and extrusion of the heat-sealable flexible material contained in the cushion body 10 during press fitting. For example, the boundaries between the first embossment part 10C and the first press fitting part 10A, and between the first embossment part 10C and the second press fitting part 10B may be formed into a stepped shape, wrinkles, etc. Such a stepped shape or wrinkles may be formed due to factors such as mold misalignment or displacement during adhesion. Also, the first cushion layer 101 and the second cushion layer 102 may have a composite structure where the inner layer is a heat-sealable flexible material and the outer layer is a fiber material. Therefore, the hardness of the first embossment part 10C may be higher than that of the first press fitting part 10A and the second press fitting part 10B after one-time press fitting, and the surface of the first embossment part 10C may be smoother than the surfaces of the first press fitting part 10A and the second press fitting part 10B. The reason for this is that after the second press fitting, more heat-sealable flexible material soaks into the fiber material than in the first press fitting part 10A and the second press fitting part 10B, the density of the cushion body 10 in the first embossment part 10C increases, and it is considered that the cushion body 10 becomes harder. Also, since a part of the heat-sealable flexible material in the inner layer soaks into the outer surface of the fiber material (i.e., the outer surface of the cushion body 10), the gaps between the fiber materials are filled, and the surface becomes smoother.

[0018] The multiple airbags 100 include an inflatable airbag 110 (starting point of internal airflow) for inflating the cushion airbag pad 1000 and a deflated airbag 140 (ending point of internal airflow) for deflating the cushion airbag pad 1000. The inflatable airbag 110 and the deflated airbag 140 communicate with each other via other airbags 120 and multiple air passages 200. The multiple airbags 100 inflate by operating the inflatable airbag 110 and deflate by operating the deflated airbag 140. The other airbag 120 includes an air-filled airbag 121 which serves as the starting point for internal airflow. The multiple air passages 200 include an air-filled passage 210 and multiple ventilation passages 220. The air-filled passage 210 serves as the starting point for airflow in all air passages 200, and the multiple ventilation passages 220 are connected to the downstream side of the air-filled airbag 121. The upstream inflatable airbag 110 communicates with the downstream inflatable airbag 121 via an air injection passage 210, thereby allowing the inflatable airbag 110 to communicate with other airbags 120. A one-way air injection member 330 is installed inside the inflatable airbag 121. Through the one-way air injection member 330, the air filled in the inflatable airbag 110 can be introduced into the inflatable airbag 121 in one direction. Furthermore, since the multiple ventilation passages 220 communicate between adjacent airbags 120 and between other airbags 120 and the deflated airbag 140, the air introduced into the inflatable airbag 121 in one direction can circulate smoothly throughout all the airbags 100.

[0019] As shown in FIG. 1, the first compression joint portion 10A is disposed between the inflatable airbag 110 and the air injection airbag 121, at least a part of which is connected to the air injection airbag 121, and this part is divided into two parts by the air injection passage 210. The first embossing portion 10C is connected to both sides of the first compression joint portion 10A away from the air injection passage 210. The second compression joint portion 10B is formed in a region excluding the first compression joint portion 10A and the first embossing portion 10C of the main body 1, and surrounds the entire outer periphery of the first compression joint portion 10A, all the airbags 100, and the air passage 200. Therefore, the air injection airbag 121 is surrounded and connected by the first compression joint portion 10A, the second compression joint portion 10B, and the first embossing portion 10C, or is surrounded and connected by the first compression joint portion 10A and the second compression joint portion 10B.

[0020] In this embodiment, as shown in Figures 1 and 3, the unidirectional air injection member 330 of the inflatable component 300 is installed inside the inflatable airbag 121 and sandwiched between the first cushion layer 101 and the second cushion layer 102 of the cushion airbag pad 1000. The unidirectional air injection member 330 allows air to enter the interior of the multiple airbags 100 in one direction. The unidirectional air injection member 330 has a film structure in which a unidirectional air injection passage 3300 is formed that connects the inflatable airbag 110 and the inflatable airbag 121 in one direction. The unidirectional air injection passage 3300 extends along the air injection direction D (i.e., the direction from the inflatable airbag 110 to the inflatable airbag 121), and the air supply section 3301 communicates with the exhaust section 3302 via the unidirectional air injection passage 3300, thereby enabling the unidirectional air injection passage 3300 to connect the inflatable airbag 110 to the inflatable airbag 121. Air enters the supply section 3301 of the unidirectional air injection member 330 sequentially from the inflatable airbag 110 and the air injection passage 210, passes through the unidirectional air injection passage 3300, and then enters the air-injected airbag 121 from the exhaust section 3302 of the unidirectional air injection member 330, and diffuses to the other airbags 120 via the ventilation passage 220. In its natural state, the unidirectional air injection passage 3300 within the unidirectional air injection member 330 is closed to prevent airflow, and the unidirectional air injection member 330 can be inflated by the pressure difference, thereby allowing air to flow through the unidirectional air injection passage 3300 and realizing unidirectional air injection. The unidirectional air injection member 330 is made of, for example, polyether TPU and polyester TPU (thermoplastic polyurethane), or PVC, EVA, or other plastic sheet material.

[0021] In this embodiment, as shown in Figure 5, the one-way air injection member 330 is an integral structure formed by joining, for example, two sheets 331 and 332. The two side edges of the first sheet 331 and the second sheet 332 are bonded together, for example, by welding, thereby closing two side edges of the one-way air injection member 330 and leaving the other two side edges open. The first sheet 331 and the second sheet 332 are flexible, flat films (e.g., plastic sheets), such as polyether TPU and polyester TPU (thermoplastic polyurethane), or PVC, EVA, or other plastic sheet materials. A one-way air injection passage 3300 is formed between the thin films of the first sheet 331 and the second sheet 332. In particular, since the inner surfaces of the first sheet 331 and the second sheet 332 that are in contact with each other are smooth, the first sheet 331 and the second sheet 332 can attract each other when in contact, achieving the effect of closing the one-way air injection passage 3300. Furthermore, the one-way air injection passage 3300 can be opened under the influence of a pressure difference.

[0022] As shown in Figure 4, the four side edges of the unidirectional air injection member 330 are, in order, the first edge 330a, the second edge 330b, the third edge 330c, and the fourth edge 330d. The first edge 330a and the third edge 330c are located opposite each other and are open (i.e., the first sheet 331 and the second sheet 332 are separable here). The second edge 330b and the fourth edge 330d are located opposite each other and are closed to form a closed section 3304 (i.e., the first sheet 331 and the second sheet 332 are inseparable in the closed section 3304). The unidirectional air injection passage 3300 is formed from the first edge 330a to the third edge 330c. The first edge 330a extends into the air injection passage 210 and overlaps with the first pressure joint 10A and the first embossed section 10C.

[0023] As shown in Figure 3, in the one-way air injection member 330, the air supply section 3301 is attached in an open state to the side of the air-injection airbag 121 that is close to the inflated airbag 110. For example, the first sheet 331 in the air supply section 3301 is fixedly attached to the first cushion layer 101, and the second sheet 332 is fixedly attached to the second cushion layer 102. The air supply section 3301 may also be in a closed state, and the air supply section 3301 can be arbitrarily designed according to actual requirements as long as the first sheet 331 and the second sheet 332 can be separated by the pressure difference. The air supply section 3301 has a closed structure. Preferably, the inner surfaces of the first sheet 331 and the second sheet 332 in the air supply section 3301 are not smooth, or are coated with a surface adsorption inhibitor such as an antistatic agent, lubricant, or separator. The first sheet 331 and the second sheet 332 in a portion of the air supply section 3301 may be fixedly attached within the air injection passage 210 and / or the inflatable airbag 110.

[0024] The exhaust section 3302 is sandwiched between the closing sections 3304 on the second edge 330b and the fourth edge 330d, and is located on the side away from the air injection passage 210. The first sheet 331 and the second sheet 332 in the exhaust section 3302 are not pressed together, thereby allowing the exhaust section 3302 to communicate across the air injection direction D. A portion of the exhaust section 3302 can also be closed by compression; for example, a closing section 3303 is provided within the exhaust section 3302, and the first sheet 331 and the second sheet 332 are bonded together, for example, by welding. The closing section 3303 is formed, for example, on the third edge 330c. If the one-way air injection member 330 deteriorates over time, the closing section 3303 can assist in closing the exhaust section 3302, preventing the exhaust section 3302 from becoming completely insufficient to close due to deterioration over time and preventing air leakage.

[0025] Furthermore, the inflatable component 300 may include an air injection valve 310. The air injection valve 310 is installed inside the inflatable airbag 110. The air injection valve 310 may be a one-way valve that allows outside air to enter in one direction, or it may be a cover that connects or isolates the inside and outside of the cushion body 10.

[0026] The inflation component 300 may include an elastomer 320. The elastomer 320 is installed inside the inflatable airbag 110 and supports the inflatable airbag 110 in a natural state. The air injection valve 310 allows air to enter and fill the inflatable airbag 110 by opening a one-way valve or cover. Furthermore, when the inflatable airbag 110 is compressed, the air injection valve 310 closes with a one-way valve or cover, isolating the air inside and outside the cushion body 10, thereby preventing air from leaking out. At this time, under the action of the pressure difference, the one-way air injection member 330 allows air to enter the interior of multiple airbags 100 in one direction. External air enters the inflatable airbag 121 through the air injection passage 210 into the inflatable airbag 121. The inflatable airbag 110 is then released, and under the elastic recovery action of the elastomer 320, the elastomer 320 supports the inflatable airbag 110 in its return to its original position. At this time, under the action of the pressure difference, air is drawn into the inflatable airbag 110, while the one-way air injection member 330 prevents air from the inflatable airbag 121 from being drawn into the inflatable airbag 110. The cushion body 10 can be inflated by repeatedly compressing and releasing the inflatable airbag 110. The elastomer may be any of the following: sponge, plastic, spring, rubber, and silicone gel, and any elastic component will suffice. Furthermore, the elastomer 320 can be omitted, and air can be supplied into the inflatable airbag 110 by an external inflator.

[0027] The shrinkable component 400 is installed inside the shrinkable airbag 140 and is used to expel air from multiple airbags 100 to the outside. In this embodiment, the shrinkable component 400 may be a one-way valve that expels internal air in one direction, or it may be a cover that connects or isolates the inside and outside of the cushion body 10, and is deflated by compressing the cushion body or by an external suction pump.

[0028] The cushion airbag pad 1000 of this embodiment can be manufactured by the method shown in Figure 8.

[0029] First, in step S101, a first cushion layer 101 and a second cushion layer 102 are prepared. The first cushion layer defines a plurality of airbag regions 100Y, a cushion compression region 10Y surrounding the airbag regions 100Y, and an air injection member compression region 330Y where the air inlet end of the sheet-like unidirectional air injection member 330 is located, and the air injection member compression region 330Y overlaps with a part of the cushion compression region 10Y.

[0030] Next, in step S102, the unidirectional air injection member 330, with the jig K fitted to the air supply section 3301, is placed inside the air-injection airbag 121. In this case, as shown in Figures 2 and 7, the jig K is sandwiched between the first sheet 331 and the second sheet 332, and the unidirectional air injection member 330 is sandwiched between the first cushion layer 101 and the second cushion layer 102. With the unidirectional air injection member 330 embedded inside the air-injection airbag 121, the air injection member compression region 330Y of the cushion body 10 is compressed, and at least a portion of the air supply section 3301 of the unidirectional air injection member 330 overlaps with the body 1. Therefore, in the air supply section 3301, the first sheet 331 and the first cushion layer 101 are bonded together, and the second sheet 332 and the second cushion layer 102 are bonded together. The air supply section 3301 can be kept open by the protruding shape of the air-injection airbag 121 on the first cushion layer 101. The air injection member compression region 330Y may or may not overlap with the air injection passage 210. Compression can be performed by a compression device (not shown) equipped with an upper die and a lower die facing each other in the vertical direction. The upper die and the lower die can compress the main body 1 by bringing the first cushion layer 101 and the second cushion layer 102 close together and pressing them together. In this step, the region where the upper die and the lower die press together corresponds to the air injection member compression region 330Y.

[0031] Next, in step S103, the cushion compression region 10Y within the main body 1 is compressed, causing the cushion compression region 10Y to overlap with the unidirectional air injection member 330 and the air injection member compression region 330Y. The first embossed portion 10C is formed at the position where the cushion compression region 10Y overlaps with the air injection member compression region 330Y. The first compression portion 10A is formed in the portion of the air injection member compression region 330Y excluding the first embossed portion 10C, and the second compression portion 10B is formed in the portion of the cushion compression region 10Y excluding the first embossed portion 10C, with the first embossed portion 10C interposed between the first compression portion 10A and the second compression portion 10B. In step S103, compression can be performed using a compression device. Unlike step S102, in step S103, the region where the upper and lower dies are compressed corresponds to the cushion compression region 10Y.

[0032] Furthermore, if the inflatable airbag 110 includes an elastomer 320, the elastomer 320 can be placed inside the inflatable airbag 110 in any step prior to step S103.

[0033] The cushion airbag pad 1000 of the present disclosure can be manufactured by the method described above, and the cushion airbag pad 100 of the present disclosure can reliably inject air in one direction into the airbag 100. Second Embodiment

[0034] In the cushion airbag pad 1000 of this embodiment, as shown in Figure 6, the unidirectional air injection member 330 may be placed inside the air-injection airbag 121, and the two side edges 330b and 330d of the unidirectional air injection member 330 may extend beyond the air-injection airbag 121 and overlap with a part of the main body 1.

[0035] The air injection member compression region 330Y can be formed to surround the air injection airbag 121, as shown in Figure 7. Depending on the position where the cushion compression region 10Y is compressed, the air injection airbag 121 may be formed to be surrounded only by the first compression portion 10A, or it may be formed to be surrounded by the first compression portion 10A and the first embossed portion 10C, as shown in Figure 6. Therefore, the two side edges 330b and 330d and the first edge 330a of the unidirectional air injection member 330 may overlap with the first compression portion 10A, or they may overlap with the first compression portion 10A and the first embossed portion 10C.

[0036] Furthermore, the air injection member pressure region 330Y may or may not overlap with the air injection passage 210.

[0037] The cushion airbag pad 1000 of this embodiment has the same configuration and manufacturing method as the first embodiment, except for the points described above. Third Embodiment

[0038] In the cushion airbag pad 1000 of this embodiment, the main body 1 further includes a second embossed portion 10BB that intersects or is perpendicular to the air inlet direction D of the unidirectional air injection member 330. The second embossed portion 10BB extends to two opposite sides of the cushion airbag pad. The second embossed portion 10BB and the unidirectional air injection member 330 are connected so as to sandwich the two sides of the air-injection airbag 121, and the second compression portion 10B is divided into two parts, a first portion 10B1 and a second portion 10B2, by the second embossed portion 10BB.

[0039] The first part 10B1 and the second part 10B2 of the second press-fitting section 10B are pressed together once each in different processes, and the second embossed section 10BB is pressed together twice.

[0040] Similar to the embossing of the first embossed portion 10C, the second embossed portion 10BB may be formed with a stepped shape, wrinkles, or other pattern at its boundary, or it may be formed to have greater rigidity and a smoother surface.

[0041] The cushion airbag pad 1000 of this embodiment has the same configuration as the first embodiment, except for the points described above.

[0042] The manufacturing method of the cushion airbag pad 1000 according to this disclosure will be described below with reference to Figure 10.

[0043] First, in step S101, the first cushion layer 101 and the second cushion layer 102 are prepared.

[0044] Next, in step S301, the first cushion layer 101 and the second cushion layer 102 are placed overlapping between the upper and lower dies of the pressing device, and the first cushion pressing region 10Y1 of the cushion body 10 is pressed together.

[0045] Next, the same steps as in step S102 described above are performed, in which the unidirectional air injection member 330 is pressed into the main body 1 by pressing the air injection member press-fitting region 330Y.

[0046] Next, in step S302, the second cushion compression region 10Y2 of the cushion body 10 is compressed. This forms the first portion 10B1, the second portion 10B2, and the second embossed portion 10BB. The second embossed portion 10BB is formed in the portion where the second cushion compression region 10Y2 overlaps with the first cushion compression region 10Y1, the second portion 10B2 is formed in the portion of the second cushion compression region 10Y2 that does not overlap with the first cushion compression region 10Y1, and the first portion 10B1 is formed in the portion of the first cushion compression region 10Y1 that does not overlap with the second cushion compression region 10Y2.

[0047] The cushion airbag pad 1000 of the present disclosure can be manufactured by the method described above, and the cushion airbag pad 1000 of the present disclosure enables reliable unidirectional air intake inside the airbag 100.

[0048] In this embodiment, it can be seen that step S103, used in the first and second embodiments, is divided into two steps, S301 and S302. Therefore, compared to the first and second embodiments, the one-way air injection member 330, particularly the exhaust section 3302, is heated only in step S302, making the one-way air injection member 330 less susceptible to deformation due to heat. Consequently, the cushion airbag pad 1000 and the manufacturing method for the cushion airbag pad 1000 of this embodiment also have the advantages of a high yield rate, long lifespan, and good inflation effect.

[0049] The above description is merely a detailed embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited to the embodiments described above. Businesses may make equivalent substitutions or modifications within the technical scope disclosed herein, all of which are within the scope of protection of the present disclosure.

Claims

1. It is a cushion airbag pad, A cushion body comprising a main body, multiple airbags, and multiple air passages, wherein two adjacent airbags among the multiple airbags are in communication via a corresponding air passage, and one of the multiple airbags is an inflatable airbag. A one-way air injection member having a thin flake structure, installed inside the air-injection airbag, and configured to guide the airflow in one direction into the interior of the plurality of airbags; Equipped with, A first embossed portion is formed on the main body, and the first embossed portion overlaps and contacts at least a part of the one-way air injection member, while the portion of the main body corresponding to the one-way air injection member does not overlap with the first embossed portion. A cushion airbag pad characterized by the following features.

2. A cushion airbag pad according to claim 1, The main body further comprises a first pressure joint directly connected to the first embossed portion, and a second pressure joint formed in the area of ​​the main body excluding the first pressure joint and the first embossed portion, wherein the first pressure joint overlaps and contacts at least a part of the unidirectional air injection member, the hardness of the portion of the main body corresponding to the first embossed portion is greater than the hardness of the portion of the main body corresponding to the unidirectional air injection member, and the hardness of the portion of the main body corresponding to the first embossed portion is greater than the hardness of the portion of the main body corresponding to the first pressure joint. A cushion airbag pad characterized by the following features.

3. A cushion airbag pad according to claim 2, The air-filled airbag is surrounded by the first pressure-joint portion and the first embossed portion, or by the first pressure-joint portion and the second pressure-joint portion, or by the first pressure-joint portion, the second pressure-joint portion and the first embossed portion, or by the first pressure-joint portion alone. A cushion airbag pad characterized by the following features.

4. A cushion airbag pad according to claim 2, The plurality of air passages include an air injection passage and a plurality of ventilation passages, the air injection passage is connected to the upstream side of the air-injection airbag, and the plurality of ventilation passages are connected to the downstream side of the air-injection airbag. The unidirectional air injection member is installed inside the air bag along the air injection direction and extends into the air injection passage upstream of the air bag. One end of the unidirectional air injection member communicates with the air injection passage, and the other end communicates with the air bag, guiding the airflow from the air injection passage into the air bag in one direction. A portion of the first pressure joint is connected to the air injection passage, another portion of the first pressure joint is in contact with the air injection passage and overlaps with it, and the first embossed portion is connected to one side of the first pressure joint that is away from the air injection passage. A cushion airbag pad characterized by the following features.

5. A cushion airbag pad according to claim 4, The cushion body is integrally formed by laminating a first cushion layer and a second cushion layer, and multiple regions of the first cushion layer protrude in a direction away from the second cushion layer to form the multiple airbags. The thin-sheet structure of the unidirectional air injection member includes a first sheet and a second sheet that overlap each other, a unidirectional air injection passage is formed between the first sheet and the second sheet in the air injection direction, the unidirectional air injection passage guides air to flow in one direction into the air-injection airbag through the air injection passage, the first sheet is attached to the first cushion layer, and the second sheet is attached to the second cushion layer. A cushion airbag pad characterized by the following features.

6. A cushion airbag pad according to claim 5, The first embossed portion is embossed on at least one of the first cushion layer and the second cushion layer. Cushion airbag pad.

7. A cushion airbag pad according to claim 5, The one-way air injection member includes an air intake section and an exhaust section on both sides opposite to the air injection direction, the air intake section is kept open, the exhaust section is kept closed, and can be opened when the pressure difference between the air intake section and the exhaust section exceeds a predetermined value, and the air intake section is in communication with the exhaust section via the one-way air injection passage. The exhaust section partially overlaps with the first pressure-joint section and further partially overlaps with the first embossed section, and the air supply section is located within the air-injection airbag. A cushion airbag pad characterized by the following features.

8. A cushion airbag pad according to claim 7, The inner surfaces of the first sheet and the second sheet that are in contact with each other are smooth. A closing portion is provided at the edge of the unidirectional air injection member on which the exhaust portion is provided, and the first sheet and the second sheet are pressed together at a position corresponding to the closing portion. A cushion airbag pad characterized by the following features.

9. A cushion airbag pad according to claim 2, The main body further comprises a second embossed portion, the second embossed portion intersects with the air injection direction of the one-way air injection member, and the second embossed portion and the one-way air injection member are each connected to both sides of the air-injection airbag. A cushion airbag pad characterized by the following features.

10. A cushion airbag pad according to claim 9, The second embossed portion extends to both opposing sides of the cushion airbag pad, and the second pressure-fitting portion is divided into two parts by the second embossed portion. A cushion airbag pad characterized by the following features.

11. It is a cushion airbag pad, A cushion body comprising a main body, a plurality of airbags, and a plurality of air passages, wherein the cushion body is integrally formed by laminating a first cushion layer and a second cushion layer, at least the first cushion layer protrudes in a direction away from the second cushion layer to form the plurality of airbags, two adjacent airbags among the plurality of airbags are in communication via a corresponding one of the plurality of air passages, and one of the plurality of airbags is an inflatable airbag; and A unidirectional air injection member having a thin, flake-like structure, installed inside the air-injection airbag, and configured to guide the airflow in one direction into the interior of the plurality of airbags; Equipped with, The plurality of airbags further include an inflatable airbag for inflating the cushion airbag pad, and the air filled in the inflatable airbag is introduced in one direction into the air-inflatable airbag via the one-way air injection member. The unidirectional air injection member is formed by a first sheet and a second sheet that overlap each other, the first sheet is attached to the first cushion layer, and the second sheet is attached to the second cushion layer. The aforementioned main body is A first pressure joint comprising a first cushion layer, a first sheet, a second sheet, and a second cushion layer, positioned between the inflatable airbag and the air-filled airbag and bonded to each other in order, and maintaining an open state such that the first sheet and the second sheet are separated on the side adjacent to the air-filled airbag; and A first embossed portion directly connected to the first pressure joint portion and formed by a combination of at least the first cushion layer, the first sheet, the second sheet, and the second cushion layer; Equipped with, A cushion airbag pad characterized by the following features.

12. A cushion airbag pad according to claim 11, The hardness of the portion of the main body corresponding to the first embossed portion is greater than the hardness of the portion of the main body corresponding to the first press-fit portion. The inner surfaces of the first sheet and the second sheet that are in contact with each other are smooth. A cushion airbag pad characterized by the following features.

13. A cushion airbag pad according to claim 11, The main body further comprises a second pressure-joint portion formed in the region excluding the first pressure-joint portion and the first embossed portion. The air-filled airbag is surrounded by the first pressure-joint portion and the first embossed portion, or by the first pressure-joint portion and the second pressure-joint portion, or by the first pressure-joint portion, the second pressure-joint portion and the first embossed portion, or by the first pressure-joint portion alone. A cushion airbag pad characterized by the following features.

14. A cushion airbag pad according to claim 11, An elastomer is attached inside the inflatable airbag to support the inflatable airbag so that it protrudes. A cushion airbag pad characterized by the following features.

15. A cushion airbag pad according to claim 14, The one-way air injection member allows air to enter the interior of the multiple airbags in one direction while the inflatable airbags are compressed, and the air inside the inflatable airbags enters the air injection airbag. Then the inflatable airbags are released, and under the elastic recovery action of the elastomer, the elastomer supports the inflatable airbags in returning to their original position. At this time, under the action of the pressure difference, air is drawn into the inflatable airbags. A cushion airbag pad characterized by the following features.

16. A method for manufacturing a cushion airbag pad, A step of preparing a first cushion layer and a second cushion layer, wherein the first cushion layer defines a plurality of airbag regions, a cushion compression region surrounding the airbag regions, and an air injection member compression region where the air inlet end of a thin, unidirectional air injection member is located, and the air injection member compression region overlaps with a part of the cushion compression region, The steps include: installing the thin, unidirectional air injection member between the first cushion layer and the second cushion layer, and positioning the air inlet end of the thin, unidirectional air injection member in the air injection member compression region; A step of pressing the first cushion layer, the second cushion layer, and the unidirectional air injection member corresponding to the air injection member compression region, A step of pressing the first cushion layer and the second cushion layer corresponding to the cushion pressing region, wherein at least one embossed portion is formed in the overlapping region of the air injection member pressing region and a part of the cushion pressing region, and a plurality of airbag pads are formed in the airbag region. A manufacturing method characterized by including the following.

17. A manufacturing method according to claim 16, In the step of pressing the air injection member pressing region, a first pressing portion is formed in the portion of the air injection member pressing region excluding the first embossed portion of at least one embossed portion, In the step of pressing the cushion pressing region, a second pressing portion is formed in the portion of the cushion pressing region excluding the first embossed portion, and the first embossed portion is interposed between the first pressing portion and the second pressing portion. The hardness of the at least one embossed portion is greater than the hardness of the portion of the air injection member compression area excluding the at least one embossed portion. A manufacturing method characterized by the following features.

18. A manufacturing method according to claim 17, The aforementioned at least one embossed portion further comprises a second embossed portion, and the second press-fit portion is divided into two parts, a first portion and a second portion, by the second embossed portion. The cushion pressure region includes a first cushion pressure region and a second cushion pressure region. The step of pressing the aforementioned cushion compression region is: Before the step of pressing the air injection member pressing region, the step of pressing the first cushion pressing region; and The step of pressing the air injection member pressure region, followed by the step of pressing the second cushion pressure region; Includes, The second embossed portion is formed in the area where the second cushion compression region overlaps with the first cushion compression region, the second portion is formed in the area of ​​the second cushion compression region that does not overlap with the first cushion compression region, and the first portion is formed in the area of ​​the first cushion compression region that does not overlap with the second cushion compression region. A manufacturing method characterized by the following features.

19. A manufacturing method according to claim 18, The second embossed portion is pressed twice to create the embossed shape. A manufacturing method characterized by the following features.

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