Air bag with non-planar wall

Abstract

The utility model relates to a kind of air bag with non-planar wall.The existing air bag needs to use complex structure to obtain air passage, affect processing convenience.The utility model includes capsule, the capsule is strip-shaped, is formed by sticking connection processing of raw material assembly, the capsule includes several linear arrangement unit capsules, to make the side wall of the capsule form local concave-convex deformation non-planar wall.Raw material assembly is formed by splicing sticking connection with unit capsule capsule, using the concave-convex non-planar wall of unit capsule to provide air passage for the convenience of surrounding formation, both ensure that the product formed by air bag processing has good air permeability effect, improve use experience, also facilitate processing, improve production efficiency by simplifying processing steps.

Description

Technical Field

[0001] This utility model relates to the field of bedding, specifically to an airbag. Background Technology

[0002] Existing mattresses include air-cushioned mattresses with adjustable air pressure. The firmness of the mattress is controlled by adjusting the air pressure within the air-cushioned mattress, allowing for adjustable firmness to meet the diverse needs of users. Existing air-cushioned mattresses are formed by piecing together several non-interconnected cubic cells of equal height, allowing them to be tightly joined front-to-back to create a flat, supportive surface. Because the airbag is made of a highly airtight material, the breathability of the support surface is poor. Moisture generated on the user's surface will accumulate due to poor breathability, causing the user to feel damp and sticky. To address this, a ventilation channel is set between adjacent airbags. However, this type of airbag has the following drawbacks: Since the airbag has a flat front and back wall, to prevent the back wall of the front airbag and the front wall of the rear airbag from sticking together and blocking due to the deformation of the airbag under stress, a plate-like sponge is placed between adjacent airbags to abut and position the corresponding walls of adjacent airbags. The airflow flowing through the ventilation channel must pass through the gaps in the sponge, which greatly hinders the airflow and reduces the breathability of the ventilation channel, affecting the user experience. In addition, the existing airbag requires injection molding to form each component, and then assembling and bonding the components, resulting in cumbersome processing steps, low processing efficiency, and high processing costs. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides an airbag with non-planar walls. Raw material components are joined and bonded to form a bladder with unit bladders. The concave and convex non-planar walls of the unit bladders facilitate the formation of ventilation channels, ensuring that the products processed from the airbags have good ventilation and improving the user experience. It also facilitates processing and improves production efficiency by simplifying processing steps.

[0004] This invention is achieved through the following method: an airbag with non-planar walls, comprising an airbag body, the airbag body being elongated and formed by bonding raw material components. The airbag body includes several linearly arranged unit airbags, so that the sidewalls of the airbag body form non-planar walls with localized concave-convex deformation. The raw material components are joined and bonded to form an airbag body with unit airbags. The concave-convex non-planar walls of the unit airbags facilitate the formation of breathable channels, ensuring that the product formed from the airbag has good breathability, improving the user experience, and also facilitating processing by simplifying processing steps to improve production efficiency.

[0005] Preferably, the non-planar wall includes a convex outward region and a concave inward region. The convex outward region is used for contact positioning, and the concave inward region provides space for forming a ventilation channel. The convex outward region is used for contact positioning between adjacent bladders to ensure that the relative positions of the bladders are fixed after assembly. The concave inward region can enclose and form a ventilation channel when adjacent bladders come close together, effectively improving ventilation efficiency. This allows moisture adhering to the user's surface to escape through the ventilation channel formed by the concave inward region, ensuring that the user's surface is dry and improving user comfort.

[0006] Preferably, the concave region includes a vertical groove. The concave region is formed by the concave-convex deformation of the sidewall of the bladder. The bladder can form a vertical section of the ventilation channel through the vertical groove, which can not only effectively receive moisture, but also improve the moisture discharge efficiency by increasing the cross-sectional area of ​​the ventilation channel.

[0007] Preferably, adjacent unit bladders are interconnected, and the bladder body is connected to an external air source via an air nozzle located at its end, so that the air pressure inside each unit bladder can be adjusted synchronously. The interconnection of adjacent unit bladders on the bladder body ensures that the air pressure inside each unit bladder remains the same, facilitating unified adjustment via the air nozzle located at the end of the bladder body, ensuring that the firmness of each unit bladder remains consistent, and providing the user with a consistent support experience.

[0008] Preferably, adjacent unit capsules are independently isolated from each other, and each unit capsule is connected to an external air source via an air nozzle located at its bottom, allowing for independent adjustment of the air pressure within each unit capsule. The isolation between adjacent units on the capsule body enables independent adjustment of the air pressure within each unit capsule, achieving differentiated pressure levels to meet varying usage requirements in different scenarios. Each unit capsule is connected to an external air source via a corresponding air nozzle, allowing for independent adjustment of the air pressure within each unit capsule as needed.

[0009] Preferably, the front and rear walls of the unit capsule are provided with vertically penetrating shaping marks in the middle to make the horizontal cross-section of the unit capsule square. The shaping marks are located at the vertical centerline of the front and rear walls of the unit capsule, guiding the front and rear walls to bend around their centerlines, thus making the horizontal cross-section of the unit capsule square and forming the non-planar wall. The shaping marks also enhance the unit capsule's resistance to vertical compression, providing stable support for the user.

[0010] Preferably, the horizontal cross-section of the unit capsule is circular or elliptical. After processing and molding, the unit capsule is inflated to form a preset shape. The horizontal cross-sectional profile of the unit capsule is obtained by adjusting the size of the unit capsule along the length of the capsule body. Specifically, the size of the unit capsule along the length of the capsule body is adjusted by increasing the distance between adjacent dividing lines, thereby matching the size of the unit capsule perpendicular to the length of the capsule body to form a unit capsule with a horizontal cross-sectional profile of circular or elliptical.

[0011] Preferably, the raw material component includes at least one sheet, which is assembled and welded to form the capsule. Using sheet assembly and welding to form the capsule facilitates raw material preparation, improves processing efficiency by simplifying the raw material preparation process, and thus enhances the user experience.

[0012] Preferably, the raw material component includes at least one sheet, which is circumferentially joined and bonded to form an annular seal. Vertically spaced dividing lines are sequentially arranged along the length of the sheet. The cavity formed by the joined sheets is divided by these dividing lines to form the unit capsules, allowing the capsules to be assembled through the inflated sidewalls to form the non-planar walls. Corresponding edges of the sheets are overlapped and welded to form sealing lines along the length of the capsules, ensuring the sheets are circumferentially joined to form an annular seal. While welding along the sealing lines, the dividing lines are simultaneously welded. Continuous welding operations are performed sequentially on each segment along the length of the raw material component. This effectively shortens the length of the welding operation segments, reducing the size requirements of the processing equipment. It also allows for continuous welding of rolled raw materials, and when the finished product reaches a preset length, it is cut and separated for continuous processing of the raw material component, effectively improving processing efficiency. Adjacent dividing lines are preferably equidistant to ensure that each unit capsule has the same size.

[0013] Preferably, the sheet is formed by flattening a roll of raw material. The length of the sheet is consistent with the length of the capsule. Sealing marks, continuously arranged along the length direction and formed by welding, are provided between corresponding edges of the sheet. Separating marks are simultaneously welded along the same path while forming the sealing marks. The raw material is in roll form, allowing for continuous feeding through stretching and flattening. By sequentially welding each segment along the length of the raw material, it is not necessary to prepare each piece of raw material individually, effectively reducing material preparation time and processing difficulty. Furthermore, by eliminating preparation operations between processing individual products, processing time is significantly shortened, and processing efficiency is effectively improved.

[0014] Preferably, the raw material is divided into unit capsules by sequentially processing sealing and separating marks along its length, and then cut when the number of unit capsules reaches a preset quantity to form the capsule body. Processing efficiency is improved by simultaneously processing the sealing and separating marks located on the same section of the raw material, eliminating the need for repeated processing. Furthermore, when the number of processed unit capsules meets the preset requirement, independent capsules can be formed by cutting, ensuring continuous production of independent capsules while guaranteeing continuous raw material feeding and processing to form a state with sealing and separating marks, thus ensuring continuous production of independent capsules. In addition, the raw material can be continuously processed without cutting to form a long strip-shaped continuous product, which can then be automatically assembled to form an airbag cushion.

[0015] Preferably, the partition is an integrally connected structure, spanning between the top and bottom edges of the capsule body, allowing each unit capsule to be independently sealed and its air pressure to be independently adjusted via its corresponding nozzle. The partition, spanning between the top and bottom edges of the capsule body, ensures isolation between adjacent unit capsules, allowing each unit capsule to adjust its air pressure via its own nozzle to meet the user's needs in different scenarios.

[0016] Preferably, the dividing line is a split structure, including airways connecting adjacent unit cells, so that the unit cells within the bladder can communicate with each other and achieve uniform air pressure regulation through end-mounted air nozzles. The dividing line is a split structure comprising multiple sections. The dividing line serves both to connect the sheets to divide the bladder body into linearly arranged unit cells, and to provide airways between adjacent sections of the same dividing line, connecting adjacent unit cells.

[0017] Preferably, the sheet material is stacked and welded in the middle of the section between adjacent dividing lines to form a vertical through-line shaping mark. The areas on both sides of the vertical centerline of the unit capsule sidewall are stacked and welded to form a shaping mark with double the wall thickness. The shaping mark improves the deformation resistance by increasing the wall thickness, which can both support the user and ensure that the horizontal cross-section of the unit capsule remains square.

[0018] Preferably, the dividing line is I-shaped. The dividing line is provided in a local section of the capsule body. First, the middle portions of the two side walls of the predetermined section are brought together and bonded to form an I-shaped outline. Then, the predetermined section is welded and bonded to form the dividing line. The dividing line includes a dividing portion disposed between adjacent unit capsules and a shaping portion disposed at the end edge of the dividing portion. The top wall of the capsule body and the adjacent area of ​​the end edge of the dividing portion are stacked and bonded to form the shaping portion. The top wall of the capsule body is bent along the shaping portion to obtain a unit capsule top wall with a predetermined outline. The sheets are axially bonded into a ring shape. The sheets located on the side wall of the capsule face each other and drive the edge areas of the sheets on the top and bottom walls of the capsule to fold inward, so that the circumferentially connected sheets enclose and form an I-shaped cavity. The I-shaped cavity includes an upper horizontal part, a lower horizontal part, and a vertical part. The top and bottom walls of the upper horizontal part and the top and bottom walls of the lower horizontal part of the I-shaped cavity are bonded together to form a shaping part. The two side walls of the vertical part of the I-shaped cavity are bonded together to form a shaping part. The dividing part can be used to separate adjacent unit capsules, and the dividing part can also be used to improve the vertical support at the connection of adjacent unit capsules. The shaping part can also be used to shape the top and bottom walls of the unit capsules, ensuring that the contours of the top and bottom walls of the unit capsules meet the preset requirements. In this way, it can guide the deformation and shape each horizontal section in the middle section of the unit capsule.

[0019] Preferably, the dividing lines are vertical strips, and are provided in local sections of the capsule body. The dividing lines are formed by the two side walls of the capsule body being brought together and welded together. The dividing lines span between the top and bottom walls of the capsule body, serving both to separate the unit capsules and to improve the vertical support performance between adjacent unit capsules.

[0020] Preferably, the raw material component comprises a single sheet, the two sides of which are rolled towards each other and overlapped and welded to form a sealing groove to obtain the capsule. The sealing groove is located in the middle of the side wall of the capsule. The two sides of the single sheet are overlapped and bonded by rolling towards each other, and the sheets are circumferentially bonded to form an annular seal. This allows the enclosed cavity to be divided into linearly arranged unit capsules by synchronously processed partition lines. This effectively simplifies the raw material preparation operation and allows for the continuous production of independent capsules by welding and cutting the sheets, effectively improving processing efficiency and reducing processing costs.

[0021] Preferably, the raw material component consists of two sheets, including a front sheet and a rear sheet. The front and rear sheets are bonded together in a front-to-back direction and welded together by overlapping their corresponding top and bottom edges to form a sealing groove, thereby obtaining the capsule. The sealing groove is located in the middle of the top and bottom walls of the capsule. The front and rear sheets are bonded together in a front-to-back direction to form the capsule, which effectively limits the number of sheets, facilitates raw material preparation, simplifies the bending requirements of the sheets, and thus improves processing efficiency. The sealing groove, located in the middle of the top and bottom walls of the capsule, effectively avoids the partition lines, preventing air leakage from repeated welding in the same area, and also ensures minimal deformation at the sealing groove location, thus protecting the sealing groove.

[0022] Preferably, the raw material assembly consists of four sheets, including a front sheet, a rear sheet, a top sheet, and a bottom sheet. The front and rear sheets are joined together in the middle, and their top and bottom edges are folded back to form exposed flanges. The top and bottom sheets have continuously arranged sections that match the horizontal cross-sectional profile of the unit capsule. The front and rear edges of the top sheet are overlapped and bonded to the flanges at the top of the front and rear sheets to form sealing marks. The front and rear edges of the bottom sheet are overlapped and bonded to the flanges at the bottom of the front and rear sheets to form sealing marks, thereby obtaining the capsule body. The sealing marks are located at the two side edges of the top and bottom surfaces of the capsule body. The front and rear panels are bonded together to form the front and rear walls of the capsule. The top panel spans between the top edges of the front and rear panels, forming the top wall of the capsule. The bottom panel spans between the bottom edges of the front and rear panels, forming the bottom wall of the capsule. These panels are sequentially joined and bonded circumferentially, creating sealing grooves on both sides of the top and bottom surfaces of the capsule. This effectively avoids deformation areas on the capsule's sidewalls and protects the sealing grooves. Furthermore, the two side edges of the top panel are bonded to the top edges of the front and rear panels, forming corner structures at the front and rear edges of the capsule's top. Similarly, the two side edges of the bottom panel are bonded to the bottom edges of the front and rear panels, forming corner structures at the front and rear edges of the capsule's bottom. These sealing grooves ensure the structural strength and sealing performance of the corner structures, thus shaping and sealing the capsule.

[0023] The beneficial effects of this utility model are as follows: the raw material components are spliced ​​and bonded to form a bladder with unit bladders. The concave and convex non-planar walls of the unit bladders facilitate the formation of air-permeable channels, which not only ensures that the products formed by processing air bladders have good air permeability and improves the user experience, but also facilitates processing and improves production efficiency by simplifying processing steps. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of the capsule described in Embodiment 1;

[0025] Figure 2This is a partial top view of the structure of the capsule during assembly as described in Embodiment 1;

[0026] Figure 3 This is a schematic diagram of the structure of the capsule described in Example 2;

[0027] Figure 4 This is a partial top view of the structure of the capsule during assembly as described in Embodiment 2;

[0028] Figure 5 This is a schematic diagram of the processing method described in Example 3;

[0029] Figure 6 This is a schematic diagram of the exploded structure of the unit capsule described in Embodiment 3;

[0030] Figure 7 Schematic diagram of the single sheet structure described in Example 3;

[0031] Figure 8 This is a schematic diagram of the structure when the sheet material is processed into an annular seal shape as described in Example 3;

[0032] Figure 9 This is a schematic diagram of the structure formed by processing the sheet material into a capsule as described in Example 3;

[0033] Figure 10 This is a schematic diagram of the processing method in Example 4;

[0034] Figure 11 This is a schematic diagram of the processing of the sheet material described in Example 4;

[0035] Figure 12 This is a schematic diagram of the processing method in Example 5;

[0036] Figure 13 This is a schematic diagram of the processing of the capsule described in Example 5;

[0037] Figure 14 This is a schematic diagram illustrating the processing of another type of capsule in Example 5;

[0038] In the diagram: 1. Capsule body, 2. Unit capsule, 3. Non-planar wall, 4. Outwardly convex area, 5. Inwardly concave area, 6. Air nozzle, 7. Shaping mark, 8. Front piece, 9. Rear piece, 10. Separator mark, 11. Top piece, 12. Bottom piece, 13. Ventilation channel, 14. Sealing mark, 15. Airway, 16. Shaping part, 17. Separator part. Detailed Implementation

[0039] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0040] Example 1:

[0041] This embodiment provides an airbag.

[0042] like Figure 1 The airbag shown includes a body 1, which is elongated and formed by bonding raw material components. The body 1 comprises several linearly arranged unit airbags 2, creating non-planar walls 3 with locally deformed concave-convex shapes on the sidewalls. The raw material components are joined and bonded to form the body 1 with the unit airbags 2. The concave-convex non-planar walls 3 of the unit airbags facilitate the formation of breathable channels 13, ensuring good breathability and improving the user experience of the product. This also simplifies processing and improves production efficiency by reducing processing steps.

[0043] In this embodiment, the non-planar wall 3 includes a convex region 4 formed by protrusions and a concave region 5 formed by recesses. The convex region 4 is used for contact positioning, and the concave region 5 is reserved for forming the air passage 13. The bladder 1 obtains a non-planar wall 3 with convex regions 4 and concave regions 5 by setting unit bladders 2 arranged in a linear manner. Adjacent unit bladders 2 are placed left and right. The front and rear walls of each unit bladder 2 are raised in the front and rear directions to form the convex region 4, and the concave region 5 is formed at the junction between the front and rear walls of adjacent unit bladders 2.

[0044] In use, adjacent capsules 1 are stacked front to back, and local contact positioning is achieved using corresponding non-planar walls 3, so as to form a breathable channel 13 for moisture discharge between adjacent capsules 1 (e.g., Figure 2 (As shown). Specifically, the corresponding convex regions 4 on the non-planar walls 3 of adjacent bladders 1 are positioned by mutual contact, and the corresponding concave regions 5 are used to enclose and form the ventilation channel 13. The adjacent bladders 1 are fixed in relative position by local direct contact, thereby reserving space for the formation of the ventilation channel 13 and preventing the ventilation channel 13 from being squeezed and blocked, thus affecting the ventilation efficiency.

[0045] In this embodiment, the concave region 5 includes a vertical groove, and the ventilation channel 13 includes a vertical section formed by assembling the vertical grooves. The upper end of the vertical section is exposed on the top surface of the bladder body 1 to receive moisture from the user's surface, and the lower end is exposed on the bottom surface of the bladder body 1 to expel moisture. The horizontal cross-sectional profile of the unit bladder 2 is square, and the airbag pad formed by assembling the bladder bodies 1 has a vertical section with a square horizontal cross-section, effectively increasing the cross-sectional area of ​​the ventilation channel 13 and thus improving the ventilation efficiency. In addition, the concave region 5 also includes a horizontal groove that is disposed along the surface of the convex region 4 and communicates with the vertical groove, so that the ventilation channel 13 can obtain a horizontal section that communicates with the vertical section. The port of the horizontal section is opened on the side wall of the bladder body 1, so that moisture in the vertical section can also be expelled through the horizontal section, which should also be considered as a specific implementation of this embodiment.

[0046] In this embodiment, the front and rear walls of the unit capsule 2 are each provided with a vertically penetrating shaping groove 7 in the middle, so that the horizontal cross-section of the unit capsule 2 is square. The front and rear walls of the unit capsule 2 achieve an L-shaped shape by setting the shaping groove 7 in the middle, thereby making the horizontal cross-sectional profile of the unit capsule 2 square. This not only utilizes the sidewalls of the capsule 1 to form a non-planar wall 3, but also ensures that the capsule 1 has good vertical support performance. The shaping groove 7 is formed by folding and welding the middle area of ​​the front and rear walls of the unit capsule 2, so that the shaping groove 7 has twice the wall thickness compared to the sidewalls of the unit capsule 2, effectively improving the deformation resistance performance. This effectively maintains the horizontal cross-sectional profile of the unit capsule 2 and also effectively improves the vertical support performance of the unit capsule 2.

[0047] In this embodiment, adjacent unit bladders 2 are interconnected, and the bladder body 1 is connected to an external air source through an air nozzle 6 located at its end, so that the air pressure inside each unit bladder 2 can be adjusted synchronously. The interconnection of each unit bladder 2 on the bladder body 1 allows the bladder body 1 to be connected to an external air source through an air nozzle 6 located at its end, and the air pressure of each unit bladder 2 to be adjusted synchronously, effectively reducing control difficulty and facilitating control operation.

[0048] In this embodiment, the raw material component includes at least one sheet, which is assembled and welded to form the capsule 1. Specifically, the raw material component can be one sheet, two sheets, or four sheets, and the capsule 1 is formed by assembling and bonding the sheets; all of these can be considered specific implementations of this embodiment.

[0049] Example 2:

[0050] Compared to Embodiment 1, this embodiment provides another type of airbag.

[0051] like Figure 3 and 4 As shown, the horizontal cross-section of the unit bladder 2 is circular. The front and rear walls of the unit bladder 2 have the same wall thickness in each region. The top and bottom walls of the unit bladder 2 are circular. The unit bladder 2 is inflated and maintains a cylindrical shape. It can form the non-planar wall 3 using the front and rear walls of the bladder body 1, and then form an airbag cushion with a breathable channel 13 by assembling the bladder body 1. It can also ensure that the unit bladder 2 has good vertical support performance and provides stable support for the user.

[0052] In this embodiment, adjacent unit bladders 2 are independently isolated from each other, and each unit bladder 2 is connected to an external air source through an air nozzle 6 located at its bottom, so that the air pressure inside each unit bladder 2 can be adjusted independently. The unit bladders 2 within the same bladder strip are isolated from each other, and each unit bladder 2 is connected to an external air source through a corresponding air nozzle 6, so that the air pressure inside each unit bladder 2 can be adjusted independently. This allows each unit bladder 2 to exhibit different levels of firmness to meet the differentiated usage requirements in different scenarios, and should also be considered a specific implementation of this embodiment.

[0053] In this embodiment, the horizontal cross-section of the unit capsule 2 is elliptical, which should also be considered a specific implementation of this embodiment. During processing, the distance between the partition marks 10 on both sides of the unit capsule 2 is adjusted. When the distance between adjacent partition marks 10 is not equal to the distance between the front and rear walls of the unit capsule 2, an ellipse with differentiated major and minor axes can be formed.

[0054] The other structures and effects of the airbag described in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

[0055] Example 3:

[0056] Compared to Embodiment 1 or 2, this embodiment provides a method for processing the airbag.

[0057] like Figure 5 The processing method shown describes a raw material component comprising a sheet that is circumferentially joined and bonded into an annular seal. Vertically spaced dividing lines 10 are sequentially arranged along the length of the sheet. The cavity formed by the joined sheets is divided by the dividing lines 10 to form unit capsules 2, allowing capsules 1 to be assembled through the inflated sidewalls of the unit capsules 2 to form non-planar walls 3. By circumferentially bonding the sheet into an annular seal, and dividing the enclosed cavity within it using synchronously processed dividing lines 10 to form linearly arranged unit capsules 2, the raw material preparation process is effectively simplified. Furthermore, by performing welding and cutting operations on the sheet, independent capsules 1 can be continuously produced, effectively improving processing efficiency and reducing processing costs.

[0058] In this embodiment, the sheet is formed by flattening and cutting a roll of raw material. The length of the sheet is consistent with the length of the capsule 1. Sealing marks 14, continuously arranged along the length direction and formed by welding, are provided between corresponding edges of the sheet. During the welding of the sealing marks 14, separating marks 10 and shaping marks 7 are simultaneously welded along the same path. Taking the processing of a capsule 1 containing a square columnar unit capsule 2 as an example, the processing is achieved through the following steps:

[0059] The first step is to stretch and flatten the rolled raw material to form a long, continuous sheet (such as...). Figure 7 (as shown);

[0060] The second step is to fold the two edges of the sheet together and stack them into a tubular shape (e.g., ...). Figure 8 (as shown), and install the air nozzle 6 in the preset position;

[0061] The third step is to perform welding operations along the length of the tubular sheet, including sealing marks 14 formed by continuous welding along the edge of the sheet, separation marks 10 formed by vertical welding and equidistant distribution along the length of the sheet, and shaping marks 7 formed by welding between adjacent separation marks 10, so as to process unit capsules 2 arranged linearly on the sheet.

[0062] Fourth step: When the number of processed unit capsules 2 meets the preset requirements, the sheet is cut to obtain capsule 1 with the preset number of unit capsules 2 (e.g., Figure 9 (As shown).

[0063] The above steps enable rapid processing of the capsule 1, reducing the requirements for raw material preparation and effectively improving processing efficiency. The processing equipment includes a welding mechanism. When the long strip of sheet passes through the welding mechanism, the welding mechanism performs welding operations on the sheet and simultaneously obtains sealing marks 14 and separation marks 10, realizing sequential, streamlined welding operations on each section of the sheet, thereby improving processing efficiency by reducing processing steps.

[0064] In this embodiment, the two sides of the sheet are rolled and overlapped by welding to form a sealing groove 14 to obtain the capsule 1. The sealing groove 14 achieves a sealed connection between the two sides of the sheet, thereby ensuring that the capsule 1 obtains a cavity isolated from the outside world, and then cooperates with the partition groove 10 to obtain the unit capsule 2. The sealing groove 14 is located in the middle of the side wall of the capsule 1, which effectively reduces the overlapping area between the sealing groove 14 and the partition groove 10, and prevents the risk of air leakage in some parts of the sheet due to repeated welding.

[0065] In this embodiment, the raw material is divided into unit capsules 2 by sealing grooves 14 and separating grooves 10 formed sequentially along its length. When the number of unit capsules 2 reaches a preset quantity, they are cut to form the capsule body 1. The welding to form the unit capsules 2 and the cutting to form the capsule body 1 are performed separately to ensure continuous welding operations and improve processing efficiency by eliminating preparation gaps between the capsule bodies 1. The sheet material is stacked and welded in the middle of the section between adjacent separating grooves 10 to form a vertically penetrating shaping groove 7. The shaping groove 7 between adjacent separating grooves 10 serves to shape each unit capsule 2, ensuring that the horizontal cross-sectional profile of the unit capsule 2 is square, effectively increasing the cross-sectional area of ​​the air passage 13, improving air permeability, and also providing good vertical support performance. Furthermore, the raw material can also be continuously processed without cutting to form long strip products for subsequent automated continuous processing, which should also be considered a specific implementation method of this embodiment.

[0066] In this embodiment, the partition 10 is I-shaped, and includes a vertically arranged partition 17 disposed between adjacent unit cells 2 and a shaping part 16 disposed at the end edge of the partition 17 (e.g., Figure 6As shown, a partition line 10 is provided in a local section of the capsule 1. First, the middle parts of the two side walls of the preset section are brought together to form an I-shaped outline. Then, the preset section is welded and bonded to form the partition line 10. The adjacent area of ​​the top wall of the capsule 1 and the end edge of the partition 17 is formed by overlapping and bonding to form the shaping part 16. The top wall of the capsule 1 is bent along the shaping part 16 to obtain the top wall of the unit capsule 2 with a preset outline.

[0067] In this embodiment, the two sides of the sheet are stacked and bonded to form an annular seal, thereby forming an annular sheet. When processing the separator 10, the two sides of the annular sheet are first pressed together and brought close, so that the two ends of the top and bottom walls of the annular sheet also move closer together, making the cavity formed by the annular sheet I-shaped. Then, the top and bottom walls of the upper horizontal part, the top and bottom walls of the lower horizontal part, and the two vertical side walls of the I-shaped cavity are respectively joined together and welded to obtain the upper shaping part 16, the lower shaping part 16, and the vertical separator 17, so that the separator 10 is I-shaped. The I-shaped separator 10 seals and separates the annular sheet, ensuring that adjacent unit capsules 2 are not interconnected, and also compresses and tightens the annular sheet, thereby shaping the unit capsules 2. Specifically, the partition 17 is used to separate the unit capsules 2 and also to improve the vertical support performance of the area between adjacent unit capsules 2; the shaping part 16 extends along the edges of the top and bottom walls of the unit capsule 2, which not only improves its deformation resistance by increasing the width of the shaping part 16, thus playing a shaping role for the corner structure of the unit capsule 2, but also separates the unit capsules 2, and can also compress and tighten the excess material of the annular sheet after forming the partition 17, and play a shaping role for the top and bottom walls of the unit capsule 2, thus playing a shaping role for the inflated unit capsule 2, ensuring that the shape of the inflated unit capsule 2 meets the preset requirements.

[0068] In this embodiment, the partition 10 is an integrally connected structure, spanning between the top and bottom edges of the bladder body 1, allowing each unit bladder 2 to be independently sealed and its air pressure to be independently adjusted via the corresponding nozzle 6. The partition 17 is an integral structure, with the partition spanning between the top and bottom edges of the bladder body 1, ensuring that adjacent unit bladders 2 are isolated from each other, thereby facilitating independent air pressure adjustment for each unit bladder 2. Furthermore, the partition 10 can also be a split structure, including at least two segmented structures, with air passages 15 between adjacent segmented structures to connect adjacent unit bladders 2, allowing the unit bladders 2 within the bladder body 1 to communicate with each other and achieve unified air pressure adjustment via the end-mounted nozzle 6. This should also be considered a specific implementation of this embodiment.

[0069] In this embodiment, the sheet material is a thermoplastic material or Oxford cloth. When using Oxford cloth, a heat setting process can be used as needed, and both should be considered as specific implementation methods of this embodiment.

[0070] Understandably, the separation line 10 is in the shape of a vertical strip. The separation line 10 is provided in a local section of the capsule 1. The two side walls of the capsule 1 are brought together and welded to form the separation line 10. This should also be regarded as a specific implementation of this embodiment.

[0071] The other structures and effects of the airbag described in this embodiment are the same as those in Embodiment 1 or 2, and will not be repeated here.

[0072] Example 4:

[0073] Compared to Example 3, this example provides another processing method.

[0074] like Figure 10 and 11 As shown, the raw material component consists of two sheets, including a front sheet 8 and a rear sheet 9. The front sheet 8 and the rear sheet 9 are bonded together in a front-to-back direction and welded together by overlapping their corresponding top edges and bottom edges to form a sealing groove 14 and a separation groove 10, thereby obtaining the capsule 1. The front sheet 8 and the rear sheet 9 are bonded together in a front-to-back direction to form the capsule 1, which effectively limits the number of sheets, facilitates raw material preparation, simplifies the bending requirements of the sheets, and thus improves processing efficiency.

[0075] During processing, taking the processing of capsule 1 containing cylindrical unit capsule 2 as an example, the following steps are performed:

[0076] The first step is to stretch and flatten the two rolls of raw material and form them into long, continuous sheets for processing the front sheet 8 and the rear sheet 9, respectively.

[0077] The second step is to heat and shape the two sheets and pinch the edges to give the front sheet 8 and the rear sheet 9 a preset outline.

[0078] The third step is to install the air nozzle 6 at the preset position;

[0079] The fourth step is to stack the front piece 8 and the rear piece 9 and perform welding operations along the length of the sheet, including sealing marks 14 formed by continuous welding along the corresponding edges of the front piece 8 and the rear piece 9, and separation marks 10 formed by vertical welding and equidistant distribution along the length of the sheet, so as to process unit capsules 2 arranged linearly on the sheet.

[0080] Fifth step: When the number of unit capsules 2 formed by processing meets the preset requirements, the sheet is cut to obtain a capsule 1 with the preset number of unit capsules 2.

[0081] Compared to the processing method described in Embodiment 3, the processing method described in this embodiment ensures that the unit capsule 2 has a preset contour by increasing the number of sheets and thermoforming the sheets. This differs from the method of using the dividing lines 10 for shaping when processing a single sheet, thus reducing the technical difficulty of processing the dividing lines 10.

[0082] In this embodiment, the sealing line 14 is located in the middle of the top wall and the middle of the bottom wall of the bladder 1, which simplifies the shaping contour of the front piece 8 and the rear piece 9, effectively reducing the shaping difficulty. It also takes advantage of the small deformation of the top wall and bottom wall of the bladder 1 during inflation and deflation to effectively reduce the pulling on the sealing line 14, thereby reducing the risk of air leakage.

[0083] The other structures and effects of the processing method described in this embodiment are the same as those in Embodiment 3, and will not be repeated here.

[0084] Example 5:

[0085] Compared to Embodiment 3 or 4, this embodiment provides another processing method.

[0086] like Figure 12 , 13 As shown in Figure 14, the raw material assembly consists of four sheets, including a front sheet 8, a rear sheet 9, a top sheet 11, and a bottom sheet 12. The front sheet 8 and the rear sheet 9 are joined together in the front-to-back direction at their middle parts, and their top and bottom edges are folded back to form exposed flanges. The top sheet 11 and the bottom sheet 12 have continuously arranged sections that match the horizontal cross-sectional contour of the unit capsule 2. The front and rear edges of the top sheet 11 are overlapped and bonded to the flanges at the top of the front sheet 8 and the rear sheet 9, respectively, to form a sealing mark 14. The front and rear edges of the bottom sheet 12 are overlapped and bonded to the flanges at the bottom of the front sheet 8 and the rear sheet 9, respectively, to form a sealing mark 14, thereby obtaining the capsule 1. The front piece 8 and the rear piece 9 are attached together to form the front and rear walls of the capsule 1. The top piece 11 spans between the top edge of the front piece 8 and the top edge of the rear piece 9 and forms the top wall of the capsule 1. The bottom piece 12 spans between the bottom edge of the front piece 8 and the bottom edge of the rear piece 9 and forms the bottom wall of the capsule 1.

[0087] During processing, taking the processing of capsule 1 containing cylindrical unit capsule 2 as an example, the following steps are performed:

[0088] The first step is to stretch and flatten the four rolls of raw materials and form them into long, continuous sheets for processing the front sheet 8, rear sheet 9, top sheet 11, and bottom sheet 12.

[0089] The second step involves heating and shaping the two sheets and pinching the edges to obtain a front sheet 8 and a rear sheet 9 with preset contours. The two sheets are then cut to obtain a top sheet 11 and a bottom sheet 12 with preset contours.

[0090] The third step is to install the air nozzle 6 at the preset position;

[0091] The fourth step is to stack the front piece 8 and the rear piece 9, and then vertically overlap the top piece 11 and the bottom piece 12 on the corresponding top and bottom edges of the front piece 8 and the rear piece 9. Welding is performed on the circumferentially assembled front piece 8, rear piece 9, top piece 11 and bottom piece 12 along the length of the sheet, including sealing marks 14 formed by continuous welding along the length of the sheet and separation marks 10 formed by vertical welding at equal intervals along the length of the sheet, so as to process the unit capsule 2 arranged linearly on the sheet.

[0092] Fifth step: When the number of unit capsules 2 formed by processing meets the preset requirements, the sheet is cut to obtain a capsule 1 with the preset number of unit capsules 2.

[0093] In the second step, the sheet is pinched to obtain a structure for welding to form a shaping mark 7; the sheet is thermoplasticized to obtain an outwardly convex area 4, which facilitates the enclosing of the front sheet 8 and the rear sheet 9 to form a unit capsule.

[0094] In this embodiment, the front piece 8 and the rear piece 9 are pre-reserved for areas to adhere and form the separation groove 10 during the heating and shaping operation, thereby facilitating the processing of the separation groove 10. The shape of the top piece 11 after cutting is consistent with the top surface contour of the front piece 8 and the rear piece 9 after being stacked in the front and rear directions, including a circular area forming the top wall of the unit capsule 2 and a thin strip-shaped connecting area set between adjacent circular areas. The connecting area can completely cover the top of the separation groove 10, which can not only improve the sealing reliability, but also serve to cover the separation groove 10.

[0095] In this embodiment, the front piece 8, the top piece 11, the rear piece 9, and the bottom piece 12 are sequentially spliced ​​and bonded together in a circumferential manner, forming sealing marks 14 on both sides of the top and bottom surfaces of the capsule body 1. The sealing marks 14 are located at the edges of the top and bottom surfaces of the capsule body 1, effectively avoiding the deformation area of ​​the side wall of the capsule body 1, and protecting the sealing marks 14.

[0096] The other structures and effects of the processing method described in this embodiment are the same as those in Embodiments 3 or 4, and will not be repeated here.

Claims

1. An air bag with a non-planar wall comprising a bag body (1), characterised in that, The capsule (1) is elongated and formed by bonding raw material components. The capsule (1) includes several linearly arranged unit capsules (2) so that the sidewalls of the capsule (1) form non-planar walls (3) with local concave and convex deformation.

2. The air bag with non-planar walls of claim 1, wherein, The non-planar wall (3) includes an outwardly convex region (4) formed by protrusions and an inwardly concave region (5) formed by depressions. The outwardly convex region (4) is used for contact positioning, and the inwardly concave region (5) is reserved for forming a ventilation channel (13). The inwardly concave region (5) includes a vertical groove.

3. An air bag with non-planar walls according to claim 2, wherein, The concave region (5) also includes a transverse groove disposed along the surface of the convex region (4) and connected to the vertical groove.

4. The air bag with non-planar walls of claim 1, wherein, The adjacent unit bladders (2) are interconnected, and the bladder body (1) is connected to an external air source through an air nozzle (6) located at its end, so that the air pressure in each unit bladder (2) can be adjusted synchronously.

5. The air bag with non-planar walls of claim 1, wherein, The adjacent unit capsules (2) are independent and isolated from each other. Each unit capsule (2) is connected to an external air source through an air nozzle (6) located at its bottom, so that the air pressure inside each unit capsule (2) can be adjusted independently.

6. The air bag with non-planar walls of claim 1, wherein, The front and rear walls of the unit capsule (2) are provided with vertically penetrating shaping marks (7) so that the horizontal cross-section of the unit capsule (2) is square.

7. The air bag with non-planar walls of claim 1, wherein, The horizontal cross-section of the unit capsule (2) is circular.

8. The air bag with non-planar walls of claim 1, wherein, The horizontal cross-section of the unit capsule (2) is elliptical.

9. The air bag with non-planar walls of claim 1, wherein, The raw material component includes at least one sheet, which is assembled and welded to form the capsule (1).

10. The air bag with non-planar walls of claim 9, wherein, The cavity formed by the sheet enclosing is divided by the partition lines to form the unit capsule (2), so that the capsule (1) can be assembled through the side wall of the unit capsule (2) to form the non-planar wall (3).

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