CN116118662B

CN116118662B - Side curtain with frame type inflatable region

Info

Publication number: CN116118662B
Application number: CN202211516861.6A
Authority: CN
Inventors: 薛乐乐; 杨丽丽; 何伟; 杨晓梅; 赵轶凡
Original assignee: Shanghai Lingang Junsheng Automobile Safety System Co ltd
Current assignee: Shanghai Lingang Junsheng Automobile Safety System Co ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2024-10-01
Anticipated expiration: 2042-11-30
Also published as: CN116118662A

Abstract

The application provides a side air curtain with a frame type air charging area, which relates to the technical field of safety air bag devices, and comprises an air curtain body, wherein the air curtain body is provided with the frame type air charging area, and the frame type air charging area comprises a first channel, a second channel, a third channel and a fourth channel which are communicated with an air inlet of the air curtain body; the inflatable curtain body is covered between an occupant and the side part of the vehicle in an inflated and unfolded state, the fourth channel extends to the lower part of the lower edge of a vehicle window and at least partially covers a downward-detection-prevention constraint area, and the downward-detection-prevention constraint area is an area corresponding to the head position, which is 450mm away from the vertical displacement line of the H point of the dummy, of the upper body of the HIII 5th dummy on the rear seat of the vehicle due to forward inertia. By defining the fourth channel to at least partially cover the anti-dive restraint area, in most cases, the area between the occupant's head and the side of the vehicle can be covered, preventing movement of the occupant's head between the curtain and the window, reducing secondary injury.

Description

Side curtain with frame type inflatable region

Technical Field

The application relates to the technical field of air bag devices, in particular to a side air curtain with a frame type air charging area.

Background

The side curtain airbag is a head protecting side airbag for protecting the side of an occupant. When the side safety air curtain is ejected, the side safety air curtain is covered on hard objects which are easy to cause personnel injury, such as vehicle windows and the like, so as to prevent unnecessary injury of the hard objects such as the vehicle windows and the like to passengers in the vehicle.

In the prior art, the vertical height of the side safety air curtain generally only covers the height of the car window, once the head area of an occupant moves to the lower part of the air curtain in the collision process, the head of the occupant moves to the position between the air curtain and the car window easily in the rebound process, so that secondary injury is caused, and the improvement is needed.

Therefore, there is a need for a new side safety air curtain that effectively prevents movement of the occupant's head to a position between the air curtain and the vehicle window, reducing secondary injury.

Disclosure of Invention

In view of this, the present embodiments provide a side curtain with a frame-type inflatable region that can effectively prevent the head of an occupant from moving to a position between the curtain and a window, reducing secondary injuries.

The embodiment of the specification provides the following technical scheme:

The embodiment of the specification provides a side air curtain with a frame type air charging area, which comprises an air curtain body arranged above a side window of a vehicle, wherein the side part of the air curtain body, which is positioned at a rear seat of the vehicle, is provided with the frame type air charging area, and the frame type air charging area comprises a first channel communicated with an air inlet of the air curtain body, a second channel and a third channel which respectively extend downwards from two ends of the first channel, and a fourth channel respectively communicated with the lower part of the second channel and the lower part of the third channel;

The inflatable curtain body is covered between an occupant and the side part of the vehicle in an inflated and unfolded state, the fourth channel extends to the lower part of the lower edge of the window of the vehicle in the vertical direction and at least partially covers a downward-detection-prevention constraint area, and the downward-detection-prevention constraint area is an area corresponding to the head position of the position, which is 450mm away from the vertical displacement line of the H point of the dummy, of the upper body of the HIII 5th dummy on the rear seat of the vehicle due to forward inertia.

According to the technical scheme, the anti-downward-detection constraint area is the area corresponding to the head position of the position 450mm away from the vertical displacement line of the H point of the dummy caused by downward detection of the upper body of the HIII 5th dummy on the rear seat of the vehicle towards the front of the vehicle, so that the anti-downward-detection constraint area comprises the limit position where the head of the passenger can be downward detected under the most condition, and the fourth channel at least partially extends to the anti-downward-detection constraint area, so that the head of the passenger can be prevented from moving to the position between the air curtain and the vehicle window under the most condition, and the secondary injury is reduced.

Preferably, the fourth channel extends in the longitudinal direction of the vehicle, and covers in the height direction the area between the vertical displacement line 450 of the H point of the dummy and the horizontal position of the 550mm head due to downward detection of the upper body of the HIII5th dummy on the rear seat due to forward inertia, and is located in the longitudinal direction in the corresponding area between the chest of the normal sitting posture of the HIII5th dummy on the rear seat and the backrest of the front seat.

Through the technical scheme, on the premise of excessively increasing the volume of the air curtain body, the lowest limit position which can be reached by the head of the passenger is covered by the fourth channel as much as possible, safer protection is provided for the head of the passenger, the possibility that the head of the passenger moves between the air curtain and the vehicle window is reduced, and secondary injury is reduced.

Preferably, the air curtain body is formed by sewing and/or gluing edge outlines of two layers of cut pieces and an internal pattern area, the first channel, the second channel, the third channel and the fourth channel jointly enclose a non-inflatable area, and the second channel is positioned at one side of the frame-type inflatable area close to the front of the vehicle;

the upper side profile of the air curtain body defines an upward limit position of the first channel;

a fourth downward limit position defined by the lower side profile of the air curtain body;

the air curtain body is also provided with a first pattern area and a second pattern area;

the first pattern area at least partially covers between the vehicle B column and the vehicle front seat, the periphery of the first pattern area is provided with a first pattern closing area, and the first pattern closing area limits the forward limit position of the second channel;

The second pattern area is positioned at one side of the frame type inflatable area far away from the B column of the vehicle, and the periphery of the second pattern inflatable area is provided with a second linear closed area which limits the limit position of the third channel backwards;

the first channel, the second channel, the third channel and the fourth channel form an inflation diameter that differs by less than or equal to 30mm.

Through the technical scheme, the upper side outline and the lower side outline of the air curtain body are used for limiting the upward and downward limit positions of the first channel and the fourth channel respectively, the first linear sealing area and the second linear sealing area are used for limiting the forward and backward limit positions of the second channel and the third channel respectively, and further the limit positions of the whole frame type air charging area in the front-back direction are limited, and the first channel, the second channel, the third channel and the fourth channel are all air charging channels with similar air charging diameters, so that the whole frame type air charging area can be regarded as a four-side uniform frame type structure, and the frame type air charging area can be stably supported on the vehicle window to form effective protection for passengers.

Preferably, the first linear seal area is configured to extend upwardly from the lower profile of the curtain body to near the upper profile and then fold downwardly toward the front of the curtain body;

The area formed by the first line type sealing area and the lower side outline of the air curtain body forms a first pattern area, and a fifth channel flowing to the front part of the air curtain body is formed between the turning-back part of the first line type sealing area and the upper side outline of the air curtain body.

Through above-mentioned technical scheme for the lower extreme of second passageway and the lower extreme in first flower type region do not communicate each other, and then can guarantee the interior pressure of second passageway at the regional in-process of aerifing of frame, ensure that the second passageway is expanded smoothly.

Preferably, the first pattern area is in a triangular structure as a whole, and one end, close to the front of the vehicle, of the first pattern area forms an air inlet with the lower outline of the air curtain body.

Through above-mentioned technical scheme, set up that first flower type regional whole is the triangle structure, and then strengthened the holistic structural strength in first flower type regional, improve the structural support of first flower type regional to the second passageway.

Preferably, the second pattern area extends from the second linear area to the rear of the air curtain body, and the thickness of the air curtain body is limited to be less than 120mm.

Through the technical scheme, the thickness of the air curtain body is limited to be smaller than 120mm, interference of the air curtain body to the head of the passenger in the rebound process of forward tilting downward detection of the passenger is reduced, and smooth rebound of the head of the passenger is ensured.

Preferably, the air curtain body is provided with a lateral protection area, and at least part of the lateral protection area covers the area between the head of the sitting posture of the rear seat HIII 5th dummy and the side part of the vehicle.

By the technical scheme, when a side collision occurs, the head of an occupant can be protected through the lateral protection area.

Preferably, the lateral protection area is located above the area between the shoulder of the rear seat HIII 5th dummy sitting in position and the side of the vehicle.

By the technical scheme, when a side collision occurs, the shoulder of the passenger cannot contact with the lateral protection area, so that the amount of offset required for contact between the head of the passenger and the lateral protection area is less, and the lateral protection area can provide support for the head of the passenger earlier to form protection.

Preferably, the intersection point of the third channel and the fourth channel is E point, and the E point is lower than the lowest point of the head in the downward detection process of the upper body of the HIII 5th dummy on the rear seat of the vehicle.

Through the technical scheme, in the downward detection process, the third channel can have a partial area which can be contacted with the head of the passenger, so that the head of the passenger is protected.

Preferably, the frame-type inflatable region has a parallelogram shape as a whole, and the upper ends of the second and third passages are inclined toward the front of the vehicle.

Through the technical scheme, the inclined direction of the third channel is arranged along the direction that the head of the passenger is downward detected towards the front of the vehicle, and then the third channel can provide support for the head of the passenger in the downward detection process of the head of the passenger to form protection.

Compared with the prior art, the beneficial effects that above-mentioned at least one technical scheme that this description embodiment adopted can reach include at least:

Through the arrangement of the frame-type inflatable region, the inflatable curtain body extends to the anti-downward-detection constraint region at least partially under the condition of limited inflation quantity by limiting the fourth channel, the anti-downward-detection constraint region is a region corresponding to the head position of the position, which is 450mm away from the vertical displacement line of the H point of the dummy, of the upper body of the HIII 5th dummy on the rear seat of the vehicle when the upper body of the dummy is downward detected towards the front of the vehicle, and therefore the anti-downward-detection constraint region comprises the limit position where the head of an occupant can be downward detected under the most condition, and the lower edge of the fourth channel can cover the region between the head of the occupant and the side part of the vehicle under the most condition, so that the head of the occupant is prevented from moving to the position between the inflatable curtain and the vehicle window, and secondary injury is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic overall structure of the first embodiment;

FIG. 2 is a schematic diagram of a downward movement of the upper body of an analog HIII 5th dummy toward the front of a vehicle in accordance with the first embodiment;

FIG. 3 is a schematic overall structure of the second embodiment;

fig. 4 is a schematic diagram of a downward movement of the upper body of an analog HIII 5th dummy toward the front of a vehicle in the second embodiment.

Reference numerals: 1. an air curtain body; 2. a frame-type inflation area; 21. a first channel; 22. a second channel; 23. a third channel; 24. a fourth channel; 3. an air inlet of the air curtain body; 4. a non-aerated zone; 5. a first pattern area; 6. a second pattern area; 7. a first linear type enclosed region; 8. a second linear enclosed region; 9. a fifth channel; 10. and laterally protecting the area.

Detailed Description

Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Other advantages and effects of the present application will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present application with reference to specific examples. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. The application may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It is noted that various aspects of the embodiments are described below within the scope of the following claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the present disclosure, one skilled in the art will appreciate that one aspect described herein may be implemented independently of any other aspect, and that two or more of these aspects may be combined in various ways. For example, apparatus may be implemented and/or methods practiced using any number and aspects set forth herein. In addition, such apparatus may be implemented and/or such methods practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should also be noted that the illustrations provided in the following embodiments merely illustrate the basic concept of the present application by way of illustration, and only the components related to the present application are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided in order to provide a thorough understanding of the examples. However, it will be understood by those skilled in the art that the present invention may be practiced without these specific details.

In view of this, the inventors have conducted intensive studies on the structure of an air curtain and various collision conditions, and found that: the side safety air curtain in the prior art has the vertical height which only covers the height of the car window generally, and once the head area of an occupant moves to the lower part of the air curtain in the collision process, the head of the occupant moves to the position between the air curtain and the car window easily in the rebound process, so that secondary injury is caused.

Based on this, the present description embodiment proposes a side curtain with a frame-type inflatable region: as shown in fig. 1, the inflatable curtain comprises an inflatable curtain body 1, wherein a frame type inflatable region 2 is arranged on the inflatable curtain body 1, the lower edge of the frame type inflatable region 2 covers a downward detection prevention constraint region, and the downward detection prevention constraint region is a region corresponding to the position of the head, which is 450mm away from the vertical displacement line of the point H of the dummy, of the upper body of the HIII5th dummy on the rear seat of the vehicle due to forward inertia. Under the precondition of limited inflation quantity, the lower edge of the frame type inflation area 2 is utilized to extend to the downward-detection-preventing constraint area, namely, the limit position which can be reached by downward detection of the head of the passenger towards the front of the vehicle under most conditions is reached, and then the lower edge of the frame type inflation area 2 can effectively prevent the head of the passenger from moving to the position between the air curtain body 1 and the vehicle window under most conditions, so that secondary injury is reduced.

The following describes the technical scheme provided by each embodiment of the present application with reference to the accompanying drawings.

Example 1

As shown in fig. 1, the present embodiment provides a side curtain air having a framed charging area, including an air curtain body 1 mounted over a side window of a vehicle. The side part of the air curtain body 1, which is positioned at the rear seat of the vehicle, is provided with a frame type inflatable region 2. The frame-type inflatable region 2 includes a first passage 21 communicating with the air intake port 3 of the air curtain body, a second passage 22 and a third passage 23 extending downward from both ends of the first passage 21, respectively, and a fourth passage 24 communicating with lower portions of the second passage 22 and lower portions of the third passage 23, respectively.

The upper, lower, front, and rear of the embodiment of the present specification correspond to the upper, lower, front, and rear of the vehicle, respectively.

The air curtain body 1 is formed by sewing and/or gluing edge outlines of two layers of cut pieces and an internal pattern area, the first channel 21, the second channel 22, the third channel 23 and the fourth channel 24 jointly enclose a non-inflatable area 4, the diameters of the first channel 21, the second channel 22, the third channel 23 and the fourth channel 24 are about 90mm, and the diameters of the first channel 21, the second channel 22, the third channel 23 and the fourth channel 24 are about 130mm in a 2D tiling state. The first channel 21, the second channel 22, the third channel 23 and the fourth channel 24 keep the inflation diameters close to each other and uniform, so that the inflated and expanded second channel 22 and third channel 23 can be stably supported in the vehicle window, and the fourth channel can be stably and reliably extended to the anti-falling detection constraint area. In other embodiments, the first channel 21, the second channel 22, the third channel 23, and the fourth channel 24 form an inflation diameter that differs by less than or equal to 30mm.

The upward limit position of the first passage 21 is defined by the upper side profile of the air curtain body 1.

The downward limit position of the fourth channel 24 is defined by the lower profile of the inflatable curtain body 1.

The air curtain body 1 is provided with a first pattern area 5 and a second pattern area 6.

The first pattern area 5 covers at least a part of the area between the vehicle B pillar and the vehicle front seat. The outer periphery of the first pattern area 5 is provided with a first line-shaped closed area 7. The first wire-shaped closed region 7 is configured to extend upward from the lower profile of the curtain body 1 to the upper profile and then turn back downward toward the front of the curtain body 1. The first pattern area 5 is surrounded by a first line-shaped closing area 7 and the lower side contour of the inflatable curtain body 1.

The forward limit position of the second channel 22 is defined by the rear side of the first linear closure area 7. And the extending direction of the rear side portion of the first linear closed region 7 is parallel to the extending direction of the second passage 22, and both extend upward in the vehicle front direction.

The second flower-shaped region 6 is located on the rear side of the frame-type inflatable region 2. The outer periphery of the second pattern area 6 is provided with a second linear enclosing area 8. The second linear closure area 8 is configured to extend downwardly from the upper profile to the lower profile of the inflatable curtain body 1.

The rearward limit of the third channel 23 is defined by the front side of the second linear closure zone 8. And the extending direction of the front side portion of the second linear closed region 8 is parallel to the extending direction of the third passage 23, and both extend upward toward the vehicle front direction.

The upper, lower, front and rear limit positions of the frame type inflatable region 2 are respectively limited by the upper side outline of the air curtain body 1, the lower side outline of the air curtain body 1, the first linear sealing region 7 and the second linear sealing region 8, and the first channel 21, the second channel 22, the third channel 23 and the fourth channel 24 are all inflatable channels with similar diameters, so that after inflation and deployment, adverse conditions such as distortion and bending caused by unbalance of four sides can be avoided, the stability of the frame type structure can be maintained, and the frame type inflatable region is stably supported on a vehicle window and does not deform greatly.

As shown in fig. 1 and 2, the air curtain body 1 is covered between the occupant and the vehicle side portion in the inflated and deployed state, and the fourth passage 24 extends in the longitudinal direction of the vehicle, and at least partially covers in the height direction a downward-detection-prevention constraint region, which is a region corresponding to the head position at a position 450mm from the vertical displacement line of the H point of the dummy, which is caused by downward detection of the upper body of the HIII 5th dummy on the rear seat of the vehicle due to forward inertia. Further, the fourth passage 24 covers in the height direction the area between the horizontal position of the head portion located at a distance of 450 and 550mm from the vertical displacement line of the H point of the dummy caused by downward detection of the upper body of the HIII 5th dummy on the rear seat due to forward inertia, and covers in the length direction the area between the chest of the sitting position of the HIII 5th dummy on the rear seat and the backrest of the front seat. The point H of the dummy is the center point of the hip joint of the dummy sitting on the seat; the vertical displacement line refers to a vertical displacement distance in the vehicle front-rear direction.

Since the fourth passage 24 can cover the area between the vertical displacement line 450 from the H point of the dummy and the horizontal position of the head of 550mm, which is caused by the upper body of the HIII 5th dummy on the rear seat going down toward the front of the vehicle, in the height direction. Therefore, the fourth channel 24 can cover the lowest limit position of the head of the passenger in most cases, which is downward toward the front of the vehicle, so that effective support is formed between the passenger and the side of the vehicle, and the head of the passenger is effectively prevented from moving to the area between the air curtain body 1 and the vehicle window, thereby reducing secondary injury.

A fifth channel 9 is formed between the folded-back portion of the first linear type closed region 7 and the upper side contour of the air curtain body 1 and flows toward the front of the air curtain body 1. An air inlet of the first pattern area 5 is formed between one end of the first pattern area 5 near the front of the vehicle and the outline of the lower side of the air curtain body 1. Further, the intersection point position of the second channel 22 and the fourth channel 24 is not communicated with the lower part of the rear side of the first pattern area 5, so that the stability of the gas flow direction and the internal pressure in the second channel 22 is ensured, the second channel 22 can be smoothly unfolded to form a regular tubular channel, and an effective support is formed for the fourth channel 24. And the air inlet of the first pattern area 5 is far away from the second channel 22, so that the first pattern area 5 is independently unfolded relative to the second channel 22 in the inflation process, the forward displacement of the second channel 22 is limited, the whole structure of the second channel 22 is effectively ensured not to deviate greatly, the front edge of the vehicle window can be stably supported, and the head of an occupant is effectively protected.

The second pattern area 6 is provided with an air inlet communicating with the upper side of the third passage 23 near the upper side of the third passage 23. So that the gas in the air curtain body 1 can flow into the second pattern area 6 through the gas inlet above the second pattern area 6 to complete the inflation and deployment of the second pattern area 6.

The second pattern area 6 extends from the second linear area to the rear of the air curtain body 1, and limits the thickness of the air curtain body 1 to be less than 120mm, especially limits the thickness of the peripheral part at the intersection point E of the third channel 23 and the fourth channel 24 to be less than 120mm, so as to avoid interference during the rebound process of the head of an occupant.

The intersection E of the third passage 23 and the fourth passage 24 is lower than the lowest point of the head during downward travel of the upper body of the HIII 5th dummy on the rear seat of the vehicle toward the front of the vehicle. And the inclination direction of the third channel 23 and the fourth channel 24 is suitable for the direction of downward detection of the upper body of the HIII 5th dummy towards the front of the vehicle, so that once the head of the passenger deviates towards the direction of the air curtain body 1 in the downward detection process of the head of the passenger, the third channel 23 and the fourth channel 24 can be supported, and the damage caused by the collision of the head of the passenger is reduced.

Example two

The difference from the first embodiment is that, as shown in fig. 3 and fig. 4, the first pattern area 5 is in a triangle structure as a whole, a stable inflatable supporting structure is formed between the front seat of the vehicle and the B pillar of the vehicle, and the forward limit position of the second channel 22 is further limited, so that the support of the second channel 22 on the front edge of the vehicle window is more stable, and the support stability of the whole frame type inflatable area 2 relative to the vehicle window is better.

The frame-type inflatable region 2 is integrally in a parallelogram shape, the second channel 22 and the third channel 23 incline towards the upper end of the lateral second channel 22 and the upper end of the third channel 23 towards the front of the vehicle, and then the overall inclination direction of the second channel 22 and the third channel 23 is more suitable for the forward and downward detection direction of the passenger, so that once the passenger deflects towards the air curtain body 1, the second channel 22, the third channel 23 and the fourth channel 24 can provide certain support for the head of the passenger, and the injuries to the head of the passenger are reduced.

The second linear closed region 8 is configured to extend downward from the upper profile to the lower profile of the curtain body 1 and then turn back upward toward the rear of the curtain body 1. The second pattern area 6 is formed by enclosing a second linear closed area 8 and the upper side outline of the air curtain body 1, and the whole second pattern area 6 is in a reverse triangle shape. The air inlet of the second pattern area 6 is located above the second pattern area 6.

The air curtain body 1 is provided with a lateral protection area 10, and the lateral protection area 10 is positioned on one side of the second flower-shaped area 6 away from the third channel 23. In the inflated state of the inflatable curtain body 1, the lateral protection area 10 covers at least in part the area between the head of the rear seat HIII 5th dummy sitting in position and the side of the vehicle. The lateral protection zone 10 is located above the zone between the shoulder of the rear seat HIII 5th dummy sitting correctly and the side of the vehicle. When a side collision occurs, the lateral protection area 10 is arranged, so that contact between the shoulder of an occupant and the lateral protection area 10 can be reduced, the distance between the head of the occupant and the lateral protection area 10 is reduced, the head of the occupant is contacted with the lateral protection area 10 under the condition that a larger offset does not occur, the lateral protection area 10 can timely support the head of the occupant, and the neck of the occupant is prevented from being greatly injured due to the overlarge offset.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment focuses on differences from other embodiments. The foregoing is merely illustrative of the present application, and the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the present application. Therefore, the protection scope of the application is subject to the protection scope of the claims.

Claims

1. A side air curtain with a frame type air charging area, comprising an air curtain body (1) arranged above a side window of a vehicle, and being characterized in that the side part of the air curtain body (1) positioned at a rear seat of the vehicle is provided with the frame type air charging area (2), the frame type air charging area (2) comprises a first channel (21) communicated with an air inlet (3) of the air curtain body, a second channel (22) and a third channel (23) which respectively extend downwards from two ends of the first channel (21), a fourth channel (24) respectively communicated with the lower part of the second channel (22) and the lower part of the third channel (23), and the first channel (21), the second channel (22), the third channel (23) and the fourth channel (24) jointly enclose an uninflatable area (4);

The inflatable curtain body (1) is covered between an occupant and a side part of a vehicle in an inflated and deployed state, the fourth channel (24) extends to the lower part of the lower edge of a vehicle window in the vertical direction, the fourth channel (24) extends along the length direction of the vehicle, and the fourth channel covers the area between the vertical displacement line 450 of the H point of the dummy and the horizontal position of the head of 550mm, which is caused by downward detection of the upper half of the HIII 5th dummy on the rear seat due to forward inertia, in the height direction, and is positioned in the corresponding area between the chest of the normal sitting posture of the HIII 5th dummy on the rear seat and the backrest of the front seat in the length direction, wherein the vertical displacement line refers to the vertical displacement distance along the front-rear direction of the vehicle.

2. A side curtain with frame inflatable region according to claim 1, characterized in that the curtain body (1) is made of two layers of cut-and-panel sewn and/or glued edge profile and an inner pattern region, the second channel (22) being located on the side of the frame inflatable region (2) close to the front of the vehicle;

the upper profile of the air curtain body (1) defines an upward limit position of the first channel (21);

A fourth channel (24) defined by the lower profile of the air curtain body (1) is at a downward limit position;

The air curtain body (1) is also provided with a first pattern area (5) and a second pattern area (6);

The first pattern area (5) at least partially covers between the vehicle B column and the vehicle front seat, a first line-shaped closed area (7) is arranged on the periphery of the first pattern area (5), and the first line-shaped closed area (7) defines a limit position of a second channel (22) forwards;

the second pattern area (6) is positioned at one side of the frame type inflatable area (2) far away from the B column of the vehicle, the periphery of the second pattern area is provided with a second linear closed area (8), and the second linear closed area (8) limits the backward limit position of the third channel (23);

the inflation diameters formed by the first channel (21), the second channel (22), the third channel (23) and the fourth channel (24) differ by less than or equal to 30mm.

3. A side curtain with framed charging area according to claim 2, wherein the first linear closure area (7) is configured to extend upwardly from the lower side profile of the curtain body (1) to near the upper side profile and then fold back downwardly toward the front of the curtain body (1);

The first pattern area (5) is formed by the area surrounded by the first line type closed area (7) and the lower side outline of the air curtain body (1), and a fifth channel (9) flowing to the front part of the air curtain body (1) is formed between the turning-back position of the first line type closed area (7) and the upper side outline of the air curtain body (1).

4. A side curtain with a framed inflated area according to claim 3, characterized in that the first pattern area (5) is of a triangular configuration as a whole, the end of the first pattern area (5) near the front of the vehicle forming an air inlet with the lower profile of the curtain body (1).

5. A side curtain with frame inflatable region according to claim 2, characterized in that the second pattern region (6) extends from the second linear closing region to the rear of the curtain body (1), limiting the thickness of the curtain body (1) to less than 120mm.

6. A side curtain with framed inflated area according to any of claims 1-5, wherein the curtain body (1) is provided with a lateral protection area (10), at least a partial area of the lateral protection area (10) covering the area between the head of the rear seat HIII 5th dummy sitting in position and the side of the vehicle.

7. A side curtain with framed inflated area according to claim 6, wherein the lateral protection area (10) is located above the area between the shoulder of the rear seat HIII 5th dummy sitting correctly and the side of the vehicle.

8. A side curtain with a framed inflated area according to claim 2, wherein the intersection of the third channel (23) and fourth channel (24) is point E, which is lower in height than the lowest point of the head during downward vehicle forward travel of the HIII 5th dummy upper body on the rear seat of the vehicle.

9. Side curtain with frame-type inflatable region according to claim 8, characterized in that the frame-type inflatable region (2) is overall parallelogram-shaped and that the upper ends of the second channel (22) and of the third channel (23) are both inclined towards the front of the vehicle.