Automobile side airbag with reduced rib compression

Abstract

The present invention relates to the technical field of automobile airbags, and in particular to an automobile side airbag that reduces the squeezing of ribs. The airbag comprises a profile correction portion arranged inside the airbag, wherein the profile correction portion comprises symmetrically arranged drawstrings, one end of the drawstrings is connected to a closing section near the middle of the profile correction portion, and the other end is connected to an expanding section far from the middle of the profile correction portion. The expanding section is fixedly connected to the back side of the inside of the airbag, and the closing section is fixedly connected to the front side of the inside of the airbag. When the airbag is detonated and inflated, the drawstring is tensioned to form an inward pulling effect on the middle of the front of the airbag, thereby reducing the bag shape bulge at the middle of the front of the airbag, eliminating the influence of the large volume and high pressure in the middle of the spindle-shaped airbag, forming an airbag shape with a relatively uniform thickness, and the pressure is no longer concentrated in the area close to the chest and ribs of the occupant, thereby reducing the pressure in the occupant contact area, thereby reducing the risk of injury.

Description

Technical Field

[0001] The invention relates to the technical field of automobile safety airbags, in particular to an automobile side safety airbag with reduced extrusion ribs. Background Art

[0002] The airbag system is an auxiliary protection system on the car. The side airbag is arranged between the occupant and the door guard plate, window glass, and B-pillar guard plate of the whole vehicle. When the airbag is in action, due to the pressure of the airbag and the influence of its own spindle-shaped package, it is easy to produce a large pressure on the chest and ribs of the occupant, which may cause potential serious damage. In this regard, in the prior art, for example, the Chinese patent document CN201680038012.0 discloses an inflatable airbag for protecting people, an airbag module, a vehicle occupant restraint system including such an airbag, and a method for manufacturing an inflatable airbag. A method for inflating an airbag, comprising a flexible covering member having at least two finger-shaped extensions, wherein the finger-shaped extensions are arranged relative to each other so that the airbag has a three-dimensional shape in the inflated state, and the finger-shaped extensions at least partially define a gap in the inflated state, wherein the covering member is deformable to absorb impact energy while deforming, especially reducing, the gap; however, the complex shape and structural design, on the one hand, easily affect the detonation and inflation speed of the airbag, and on the other hand, also bring difficulties to cost control and process manufacturing, and thus, it is not sufficient to meet higher practical requirements. Summary of the invention

[0003] In view of this, the purpose of the present invention is to propose a car side airbag with reduced extrusion ribs to solve the problem that the specific shape and complex structural design of the side airbag, on the one hand, easily affect the airbag detonation and inflation speed, and on the other hand, also bring difficulties to cost control and process manufacturing.

[0004] Based on the above purpose, the present invention provides a vehicle side safety airbag with reduced crushing ribs, including an airbag airbag, and also including:

[0005] The correction part is arranged inside the airbag, and the correction part includes symmetrically arranged drawstrings, one end of the drawstrings is connected to a closing section near the middle position of the correction part, and the other end is connected to an expanding section far from the middle position of the correction part, the expanding section is fixedly connected to the back side of the inside of the airbag, and the closing section is fixedly connected to the front side of the inside of the airbag, and the closing section is located in the middle position of the front of the airbag. When the airbag is detonated and inflated, the drawstrings are tensioned to reduce the bulge in the middle position of the front of the airbag.

[0006] Preferably, the drawstring is designed to be Z-shaped, with the Z-shaped horizontal edges at one end of the drawstring facing inwards to form a closed area, and the Z-shaped horizontal edges at the other end of the drawstring facing outwards to form an expanded area.

[0007] Preferably, a reinforcing sheet is connected between the closing sheet area, the expanding sheet area and the inner side of the airbag.

[0008] Preferably, when the airbag is detonated and inflated, the drawstring is tightened to pull the airbag to form a groove in the middle of the front side of the airbag to support the ribs of the person in the vehicle.

[0009] Preferably, a plurality of buffer sheets are arranged on the front side of the airbag, an inner sealing sheet is attached to the inner side of the buffer sheet, a pull wire is fixedly connected to the inner side of the inner sealing sheet, one end of the pull wire is fixedly connected to the inner side of the airbag bag at the side, when the airbag bag is detonated and inflated and hits the human body, the pull wire at the hitting position is synchronously tensioned, pulling the inner sealing sheet at the side to deform, so as to leak air outward through the buffer sheet until the pull wire is broken, and the inner sealing sheet rebounds and attaches to the buffer sheet to seal and reset.

[0010] Preferably, a central breathable area is provided in the middle of the buffer sheet, the middle position of the inner sealing sheet corresponding to the central breathable area is a sealing area, and the edge position of the inner sealing sheet away from the central breathable area is an edge breathable area. The inner sealing sheet is pulled inwardly by a pull wire to deform concavely so as to allow air to pass outward through the edge breathable area and the central breathable area.

[0011] Preferably, the pull wire is fixedly connected to the center position of the inner side of the inner sealing sheet.

[0012] Preferably, the deadlock is a hardened seal.

[0013] The beneficial effects of the present invention are as follows: a correcting portion is arranged inside the airbag, the correcting portion includes symmetrically arranged drawstrings, one end of the drawstrings is connected to a closing piece area close to the middle position of the correcting portion, and the other end is connected to an expanding piece area far from the middle position of the correcting portion, the expanding piece area is fixedly connected to the back side of the inside of the airbag, the closing piece area is fixedly connected to the front side of the inside of the airbag, and the closing piece area is located in the middle position of the front of the airbag, that is, the side facing the occupants in the car, so that when the airbag is detonated and inflated, the drawstrings are tensioned to form an inward pulling effect on the middle position of the front of the airbag. The effect is to reduce the bulge in the middle of the front of the airbag. Compared with the traditional spindle-shaped side airbag, when the airbag is deployed, the influence of the large volume and high pressure in the middle of the spindle-shaped airbag is eliminated, and an airbag package with relatively uniform thickness is formed. The pressure is no longer concentrated in the area close to the chest and ribs of the occupant, which reduces the pressure in the occupant contact area, thereby reducing the risk of injury. Only two drawstrings are added to the airbag, and the shape and structural design are simple, which will not affect the speed of airbag detonation and inflation, and is also beneficial to cost control and process manufacturing, while also increasing the overall safety and stability of the airbag. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the structure of the airbag of the present invention;

[0016] Figure 2 It is a schematic diagram of the structure of the drawstring of the present invention;

[0017] Figure 3 It is a schematic structural diagram of the buffer sheet and the inner sealing sheet of the present invention;

[0018] Figure 4 It is a schematic diagram of the structure of the inner sealing sheet of the present invention when it is concave, deformed and breathable;

[0019] Figure 5 A top view of the buffer sheet of the present invention;

[0020] Figure 6 It is a top view of the inner sealing sheet of the present invention.

[0021] The markings in the figure are:

[0022] 1. Airbag; 2. Drawstring; 3. Closing area; 4. Expansion area; 5. Reinforcement sheet; 6. Buffer sheet; 61. Center breathable area; 7. Inner sealing sheet; 71. Sealing area; 72. Edge breathable area; 8. Pull line. DETAILED DESCRIPTION

[0023] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0024] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figure 1 to Figure 2 As shown, a vehicle side safety airbag for reducing squeezed ribs comprises an airbag 1, and also comprises a correcting portion arranged inside the airbag 1, the correcting portion comprises a symmetrically arranged drawstring 2, one end of the drawstring 2 is connected to a closing section 3 close to the middle position of the correcting portion, and the other end is connected to an expanding section 4 far from the middle position of the correcting portion, the expanding section 4 is fixedly connected to the back side of the inside of the airbag 1, the closing section 3 is fixedly connected to the front side of the inside of the airbag 1, and the closing section 3 is located in the middle position of the front of the airbag 1. When the airbag 1 is detonated and inflated, the drawstring 2 is tensioned to reduce the bag-shaped protrusion in the middle position of the front of the airbag 1.

[0026] The present invention is provided with an airbag 1, and also includes a correction part arranged inside the airbag 1, the correction part includes a symmetrically arranged drawstring 2, one end of the drawstring 2 is connected to a closing piece 3 close to the middle position of the correction part, and the other end is connected to an expanding piece 4 far away from the middle position of the correction part, the expanding piece 4 is fixedly connected to the back side of the inside of the airbag 1, and the closing piece 3 is fixedly connected to the front side of the inside of the airbag 1. The closing piece 3 is located in the middle position of the front of the airbag 1, that is, the side facing the occupants in the car, so that when the airbag 1 is detonated and inflated, the drawstring 2 is tightened to close the middle position of the front of the airbag 1. The position forms an inward pulling effect, reducing the package-shaped bulge in the middle of the front of the airbag 1. Compared with the traditional spindle-shaped side airbag, when the airbag is deployed, the influence of the large volume and high pressure in the middle of the spindle-shaped airbag is eliminated, forming an airbag package with relatively uniform thickness. The pressure is no longer concentrated in the area close to the sternum and ribs of the occupant, reducing the pressure in the occupant contact area, thereby reducing the risk of injury. Only two draw straps 2 are added to the airbag, and the shape and structural design are simple, which will not affect the speed of detonating and inflating the airbag, and is also beneficial to cost control and process manufacturing, while also increasing the overall safety and stability of the airbag.

[0027] In an embodiment of the present invention, Figure 2 As shown, the drawstring 2 is designed in a Z shape, with the Z-shaped horizontal sides at one end of the drawstring 2 facing inwards to form a closed area 3, and the Z-shaped horizontal sides at the other end of the drawstring 2 facing outwards to form an expanded area 4. The drawstring 2, the closed area 3, and the expanded area 4 can be made of the same material as the airbag 1 to provide a stable connection.

[0028] In an embodiment of the present invention, Figure 2 As shown, a reinforcing sheet 5 is connected between the closing sheet area 3, the expanding sheet area 4 and the inner side of the airbag 1 to facilitate further thickening and reinforcement of the connection for use.

[0029] In an embodiment of the present invention, when the airbag 1 is ignited and inflated, the drawstring 2 is tensioned to pull the airbag 1 to form a groove in the middle of the front side. That is, by setting the length of the drawstring 2, grooves of different depths are formed in the middle of the front side of the airbag 1, so as to provide safer cushioning against the ribs of the occupants in the vehicle and avoid excessive impact and damage to the occupants in the vehicle, especially the rib area, during an explosion.

[0030] In an embodiment of the present invention, Figures 2 to 6 As shown, a plurality of buffer sheets 6 are arranged on the front side of the airbag 1, and an inner sealing sheet 7 is attached to the inner side of the buffer sheet 6, and a pull line 8 is fixedly connected to the inner side of the inner sealing sheet 7, and one end of the pull line 8 is fixedly connected to the inner side of the airbag 1 on the side. Therefore, in the initial state, since the inner sealing sheet 7 itself is elastically attached to the buffer sheet 6 and closed, the airbag 1 is exploded and inflated. Under the action of the internal air pressure, the inner sealing sheet 7 is more firmly attached to the buffer sheet 6 and closed. When the airbag 1 is exploded and inflated and contacts the human body for the first time, it is subjected to the external pressure, and the pull line 8 at the contact position is synchronously tensioned to pull the inner sealing sheet 7 on the side to deform, so as to pass through the buffer The sheet 6 leaks air outward, while the strength of the pull wire 8 itself is limited, and the connection of the pull wire 8 is intentionally loosened to facilitate its breaking, so that at the initial moment of contact with the human body, the side of the contact part is depressurized to achieve a buffering protection effect, avoiding the strong impact from causing too much damage to the occupants of the car, especially the rib area, and within a very short time after the buffering, the pull wire 8 is broken, and the inner sealing sheet 7 rebounds rapidly under the action of its own elastic force and internal air pressure, adheres to the buffer sheet 6 and is closed and reset, that is, the main requirement after instantaneous buffering is to unfold the bulging airbag 1 to form a covering and protection effect on the human body, and the buffer sheet 6 that is immediately closed after the instantaneous deflation will not affect the original safety function of the airbag.

[0031] In an embodiment of the present invention, Figures 2 to 6As shown, a central vent area 61 is provided in the middle of the buffer sheet 6, a central vent area 61 is provided in the middle of the inner sealing sheet 7 corresponding to the central vent area 61, and an edge position of the inner sealing sheet 7 away from the central vent area 61 is an edge vent area 72. Specifically, the buffer sheet 6 and the inner sealing sheet 7 can be made of the same material as the airbag 1, and the central vent area 61 and the edge vent area 72 can be made of intentionally loosely woven or intentionally opened at specific positions to meet a certain degree of air leakage. The edge breathable area 72 and the central breathable area 61 are offset from each other. Under the action of their own elastic force and internal air pressure, the sealing area 71 is firmly attached to the central breathable area 61 to achieve a good sealing effect. The inner sealing sheet 7 is pulled inwardly by the pull wire 8 to deform concavely, so that air can be ventilated outward through the edge breathable area 72 and the central breathable area 61. Moreover, the airbag provided with the buffer sheet 6 can even cancel the design of its air release port, and directly press the airbag to trigger the pull wire 8 to pull the inner sealing sheet 7 inwardly to deform concavely, so as to achieve gradual air release.

[0032] In an embodiment of the present invention, Figures 2 to 6 As shown, the pull wire 8 is fixedly connected to the center position of the inner side of the inner sealing sheet 7.

[0033] In an embodiment of the present invention, Figures 2 to 6 As shown, the sealing area 71 is a hardened seal to facilitate a better and more stable sealing effect.

[0034] In a vehicle side safety airbag for reducing squeezed ribs disclosed in the present invention, when in use, through a correcting portion arranged inside the airbag 1, the correcting portion includes a symmetrically arranged drawstring 2, one end of the drawstring 2 is connected to a closing plate area 3 close to the middle position of the correcting portion, and the other end is connected to an expanding plate area 4 away from the middle position of the correcting portion, the expanding plate area 4 is fixedly connected to the back side of the inside of the airbag 1, the closing plate area 3 is fixedly connected to the front side of the inside of the airbag 1, and the closing plate area 3 is located in the middle position of the front of the airbag 1. When the airbag 1 is detonated and inflated, the drawstring 2 is tensioned to form an inward pulling effect on the middle position of the front of the airbag 1, thereby reducing the bag shape bulge in the middle position of the front of the airbag 1, eliminating the influence of the large volume and high pressure in the middle of the spindle-shaped airbag, forming an airbag shape with a relatively uniform thickness, and the pressure is no longer concentrated in the area close to the chest and ribs of the occupant, thereby reducing the pressure in the occupant contact area, thereby reducing the risk of injury.

[0035] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0036] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vehicle side safety airbag with reduced rib compression, comprising an airbag, characterized in that: Also includes: A correction part is arranged inside the airbag, the correction part includes symmetrically arranged drawstrings, one end of the drawstrings is connected to a closing piece area close to the middle position of the correction part, and the other end is connected to an expanding piece area far from the middle position of the correction part, the expanding piece area is fixedly connected to the back side of the inside of the airbag, the closing piece area is fixedly connected to the front side of the inside of the airbag, the closing piece area is located in the middle position of the front of the airbag, and when the airbag is detonated and inflated, the drawstrings are tensioned to reduce the bulge in the middle position of the front of the airbag; The front side of the airbag is provided with a plurality of buffer sheets, the inner side surface of the buffer sheet is attached with an inner sealing sheet, the inner side surface of the inner sealing sheet is fixedly connected with a pull wire, one end of the pull wire is fixedly connected to the inner side surface of the airbag bag on the side, when the airbag bag is ignited and inflated and contacts the human body, the pull wire at the contacting position is synchronously tensioned, pulling the inner sealing sheet on the side to deform, so as to leak air outward through the buffer sheet until the pull wire is broken, and the inner sealing sheet rebounds and attaches to the buffer sheet to be closed and reset; a central breathable area is provided in the middle position of the buffer sheet, the middle position of the inner sealing sheet corresponding to the central breathable area is a sealing area, and the edge position of the inner sealing sheet away from the central breathable area is an edge breathable area, and the inner sealing sheet is pulled inwardly and deformed by the pull wire, so as to allow air to pass through the edge breathable area and the central breathable area to pass outward.

2. The vehicle side airbag with a crush rib reduction according to claim 1, characterized in that: The drawstring is designed in a Z shape, with the Z-shaped horizontal sides at one end of the drawstring facing inwards to form the closing area, and the Z-shaped horizontal sides at the other end of the drawstring facing outwards to form the expanding area.

3. The vehicle side airbag with a crush rib reduction according to claim 1, characterized in that: A reinforcing sheet is connected between the closing sheet area, the expanding sheet area and the inner side of the airbag.

4. The vehicle side airbag with a crush rib reduction according to claim 1, characterized in that: When the airbag is ignited and inflated, the drawstring is tightened to pull the front middle of the airbag to form a groove for supporting the ribs of the person in the vehicle.

5. The vehicle side airbag with a crush rib reduction according to claim 1, characterized in that: The pull wire is fixedly connected to the center position of the inner side of the inner sealing sheet.

6. The vehicle side airbag with a crush rib reduction according to claim 1, characterized in that: The deadlock area is a hardened seal.

Images