CN218703121U

CN218703121U - Copilot air bag device

Info

Publication number: CN218703121U
Application number: CN202223033680.6U
Authority: CN
Inventors: 吕�峥
Original assignee: Joyson Automotive Safety System R&d Shanghai Co ltd
Current assignee: Joyson Automotive Safety System R&d Shanghai Co ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-24
Anticipated expiration: 2032-11-14

Abstract

The application provides a copilot air bag device, which relates to the technical field of air bag devices and comprises a main bag, wherein the main bag is provided with a vent hole, and the main bag is also provided with an auxiliary bag which completely covers the vent hole; when the main bag is inflated, the air in the main bag flows into the auxiliary bag through the vent hole, the auxiliary bag protrudes out of the front panel of the main bag and faces the passenger, and the auxiliary bag is used for supporting the neck area of the passenger. Through setting up vice bag, under the main bag inflation state, the gas in the main bag flows to vice bag through the air vent for vice bag is bloated and is outstanding in the front panel, provides the support for passenger's neck region, prevents that passenger's head from because of the excessive upwards stretching that takes place with the front panel striking, reduces the extra injury that causes the passenger.

Description

Copilot air bag device

Technical Field

The application relates to the technical field of safety airbag devices, in particular to a copilot safety airbag device.

Background

The parts of the passive safety system of the motor vehicle comprise a front airbag, a head airbag, a side airbag and the like. The main control unit controls the gas generator to explode, so that the front-row airbag, the head airbag and the side airbag are inflated, and a safety belt is matched to protect a passenger.

When a frontal collision happens, the safety belt can restrain the trunk of a passenger, the front airbag is ejected out to protect the head of the passenger, but in the process that the head of the passenger is in contact with the front panel of the front airbag, the head of the passenger stretches upwards relative to the front panel, so that the neck of the passenger excessively deforms, and extra injury is caused.

Therefore, there is a need for a new passenger airbag device that can provide support to the neck of the passenger, prevent excessive upward stretching of the head of the passenger due to impact with the front panel, and reduce additional injury to the passenger.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiments of the present disclosure provide a passenger airbag device, which can provide support for the neck of a passenger, prevent the head of the passenger from being excessively stretched upwards, and reduce additional injuries to the passenger.

The embodiment of the specification provides the following technical scheme:

an embodiment of the present specification provides a passenger airbag device including: a main bag is arranged in the bag body,

the main bag is provided with a vent hole, and the main bag is also provided with an auxiliary bag which completely covers the vent hole;

when the main bag is inflated, the air in the main bag flows into the auxiliary bag through the vent hole, the auxiliary bag protrudes out of the front panel of the main bag and faces the passenger, and the auxiliary bag is used for supporting the neck area of the passenger.

Through the technical scheme, the auxiliary bag is arranged, and under the inflation state of the main bag, gas in the main bag flows to the auxiliary bag through the vent hole, so that the auxiliary bag is bulged and protrudes out of the front panel to provide support for the neck area of a passenger, the head of the passenger is prevented from being excessively upwards stretched due to the collision with the front panel, and the additional injury to the passenger is reduced.

Preferably, the main bag is internally provided with a first pull belt and an air inlet pull belt;

one end of the first pull belt is connected with the inner side of the front panel, and the other end of the first pull belt is connected to one end, far away from the front panel, of the main bag or an area, provided for mounting the main bag, of the automobile;

one end of the air inlet pull belt is connected with the first pull belt, the other end of the air inlet pull belt penetrates out of the through hole formed in the front panel and extends into the auxiliary bag, and one section of the air inlet pull belt located in the auxiliary bag covers the vent hole;

when the main bag is in an inflated state and the front panel is not in contact with the head of the passenger, the air inlet pull belt, the first pull belt and the front panel are all in a tightened state, and one section of the air inlet pull belt positioned in the auxiliary bag covers the vent hole;

when the main bag is in an inflated state and the front panel is in contact with the head of a passenger, the air inlet pull belt, the pull belt and the front panel are all in a loose state, and air in the main bag flows into the auxiliary bag through the vent hole.

According to the technical scheme, the first pull belt and the air inlet pull belt are arranged, the air inlet valve for controlling the opening and closing of the air vent is formed through the air inlet pull belt, when the main bag is in an inflated state and the front panel is not in contact with the head of a passenger, the front panel pulls the first pull belt and the air inlet pull belt, so that the first pull belt, the air inlet pull belt and the front panel are all in a tight state, the air inlet pull belt is located at one section in the auxiliary bag and can cover the air vent, gas in the main bag cannot flow to the auxiliary bag from the air vent, and the auxiliary bag is not in the inflated state at the moment; when the main bag is in an inflated state and the front panel is in contact with the head of a passenger, the head of the passenger collides with the impact force generated by the front panel, so that the front panel is extruded towards the direction away from the passenger, and further the air inlet drawstring, the drawstring and the front panel are in a loose state;

and because the vent hole is provided with the stretching strap that admits air towards the one end of vice bag, therefore the gas that flows out from the vent hole can not flow to vice bag along the direction towards passenger, but flows to vice bag from the gap between stretching strap that admits air and the front panel, and the vice bag bloated process is less towards the power of passenger's direction, and then can effectively reduce the injury that vice bag bloated and cause passenger's neck region.

Preferably, an air inlet cavity is formed between the air inlet pull belt and the first pull belt, and the left side and the right side of the air inlet cavity are completely communicated.

Preferably, the first drawstring and the front panel are fixed by a first suture;

one end of the air inlet pull belt, which is far away from the first pull belt, is fixedly connected to the outer side of the front panel through a first suture.

Through first suture, with fixed connection between first stretching strap, the positive panel and the stretching strap that admits air for it is more stable to be connected between first stretching strap, the stretching strap that admits air and the positive panel.

Preferably, a reinforcing cloth is arranged between the first draw tape and the front panel;

one end of the reinforcing cloth is fixedly connected with the first drawstring and the front panel through a first suture;

the other ends of the reinforcing cloth are fixedly connected with the front panel through stitches;

the strengthening cloth is provided with a first communicating hole communicated with the air vent, the strengthening cloth is also provided with a second communicating hole communicated with the through hole, and the second communicating hole is used for the air inlet drawstring to pass through.

Through the technical scheme, the reinforcing cloth is arranged, so that on one hand, the overall structural thickness among the first drawstring, the front panel and the air inlet drawstring can be increased, and after the first drawstring, the front panel and the air inlet drawstring are sewn and fixed through the first sewing line, the first drawstring and the air inlet drawstring can be more stably fixed on the front panel, so that the main bag and the auxiliary bag can be unfolded according to the preset shape; on the other hand, the structural strength of the front panel in the area around the vent hole can be enhanced.

Preferably, the auxiliary bag is provided with a pre-breaking line, and the free end of the auxiliary bag is fixed on the front panel through the pre-breaking line.

According to the technical scheme, the pre-breaking line is arranged, and on one hand, the free end of the auxiliary bag can be fixed, so that the main bag and the auxiliary bag can be conveniently installed; on the other hand, in the inflating and swelling process of the auxiliary bag, the pre-breaking line can be broken, the acting force towards the direction of the passenger in the swelling process of the auxiliary bag is reduced, and the extra injury to the passenger is reduced.

Preferably, the secondary pocket is provided with a folded end, and the pre-broken thread sews and fixes the folded end and the front panel to fix the free end of the secondary pocket on the front panel.

Through the technical scheme, the folding end is arranged, the unfolding length of the pre-broken line is increased, so that the resistance of the pre-broken line is overcome when the auxiliary bag is inflated and expanded, the acting force generated towards the direction of a passenger is smaller, and the impact on the passenger caused by the expansion of the auxiliary bag is reduced.

Preferably, the periphery of the secondary bag is fixed on the front panel by sewing through a sewing thread.

Through the technical scheme, two independent chambers are formed between the auxiliary bag and the main bag, and the processing is also convenient.

Preferably, a second drawstring is arranged in the main bag, one end of the second drawstring is fixedly connected with the front panel, and the other end of the second drawstring is fixedly connected with one end of the main bag far away from the front panel.

Through the technical scheme, the second pull belt is arranged, the tension point on the front panel is increased, and the front panel is matched with the internal gas of the main bag, so that the front panel has good supporting capacity, and the head of a passenger is well supported.

Preferably, the second draw tape is located on the side of the first draw tape facing away from the air inlet draw tape.

Compared with the prior art, the beneficial effects that can be achieved by the at least one technical scheme adopted by the embodiment of the specification at least comprise:

1. by arranging the auxiliary bag, the auxiliary bag is bulged and protrudes out of the front panel when the main bag is inflated, so that support is provided for the neck area of a passenger, the head of the passenger is prevented from being excessively upwards stretched due to collision with the front panel, and additional injury to the passenger is reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used 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 it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of a passenger airbag device in the present embodiment;

fig. 2 is an enlarged schematic view of a part of the structure of the passenger airbag device in the present embodiment;

FIG. 3 is a schematic view of the front panel of the present embodiment when not in contact with the head of the occupant;

fig. 4 is a schematic view of the front panel in contact with the head of the occupant in the present embodiment.

Reference numerals: 1. a primary bladder; 2. a vent hole; 3. a front panel; 4. a secondary pouch; 5. a first draw tape; 6. a second draw tape; 7. an air inlet pull belt; 8. through the hole; 9. an air intake chamber; 10. a first suture; 11. reinforcing cloth; 12. a folding end; 13. pre-breaking the wire; 14. a free end.

Detailed Description

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

The following description of the embodiments of the present application is provided by way of specific examples, and other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The present application is capable of other and different embodiments and its several details are capable of modifications and/or changes in various respects, all without departing from the spirit of the present application. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It is noted that various aspects of the embodiments are described below within the scope of the appended 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 application, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number and aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present application, and the drawings only show the components related to the present application rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.

In addition, in the following description, specific details are provided 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.

The applicant finds that when the existing front exhaust airbag is in collision, the head of the passenger can be upwards stretched relative to the front panel of the front exhaust airbag, so that the neck of the passenger is excessively deformed, and additional injury is caused.

Based on this, the present specification embodiment proposes a passenger airbag device: as shown in fig. 1 and 2, the airbag comprises a main bag 1 and an auxiliary bag 4, wherein the main bag 1 is provided with a vent hole 2, and in an inflated state, gas in the main bag 1 flows to the auxiliary bag 4 through the vent hole 2, so that the auxiliary bag 4 protrudes out of the main bag 1 and faces to a front panel 3 of an occupant, and the auxiliary bag 4 can support the neck area of the occupant, prevent the head of the occupant from being excessively upwards stretched due to the collision with the front panel 3, and reduce additional injury to the occupant.

The technical solutions provided by the embodiments of the present application are described below with reference to the accompanying drawings.

As shown in fig. 1 and 2, the present specification provides a passenger airbag device including a primary bag 1. The main bag 1 is provided with a vent hole 2, the main bag 1 is in an inflation state, and the vent hole 2 is positioned on a front panel 3 of the main bag 1 facing to an occupant. An auxiliary bag 4 is fixed on the front panel 3 of the main bag 1, two independent chambers are formed between the auxiliary bag 4 and the main bag 1, and the auxiliary bag 4 completely covers the vent hole 2, so that one end of the vent hole 2 far away from the inside of the main bag 1 is positioned inside the auxiliary bag 4.

The main bag 1 is in the state of inflation, and the gas in the main bag 1 flows to the auxiliary bag 4 through the vent hole 2, so that the auxiliary bag 4 inflates and swells, the auxiliary bag 4 swells and then protrudes out of the front panel 3, and the auxiliary bag 4 can effectively support the neck area of a passenger, the head of the passenger is limited from being stretched upwards, and extra injury to the passenger is reduced.

In the present embodiment, the sub-pocket 4 is fixed to the front panel 3 by sewing with a seam all around.

In other embodiments, the periphery of the secondary pouch 4 may be secured to the front panel 3 by stitching or gluing.

The inside of the main bag 1 is provided with a first pull belt 5, a second pull belt 6 and an air inlet pull belt 7.

One end of the first pull strap 5 is fixed to the inner side of the front panel 3 by a first sewing line 10, and the other end of the first pull strap 5 is fixed to one end of the main pocket 1 far from the front panel 3 by a sewing line.

Alternatively, the other end of the first pull strap 5 may be fixed to the area of the vehicle where the main bag 1 is installed by sewing, as long as the fixing of the end of the first pull strap 5 away from the front panel 3 is achieved, which is not limited herein.

One end of the second drawstring 6 is fixed on the inner side of the front panel 3 by sewing and fixing through a suture, and the other end of the second drawstring 6 is fixed on one end of the main bag 1 far away from the front panel 3 by sewing and fixing through a suture.

The cooperation of first stretching strap 5 and second stretching strap 6 can make main bag 1 reach preset shape under the inflation state, and can increase the tension point of front panel 3, and the inside gas of cooperation main bag 1 improves the holding power of front panel 3, and then improves the holding power to passenger's head.

One end of the air inlet drawstring 7 and one side of the first drawstring 5 departing from the second drawstring 6 are fixedly connected in a sewing and fixing mode through a suture, and the other end of the air inlet drawstring 7 is bent and extends into the auxiliary bag 4 after penetrating out of a through hole 8 formed in the front panel 3. The end of the air inlet pull tape 7 away from the first pull tape 5 is fixed to the outside of the front panel 3 by a first sewing line 10. The section of the air inlet pull belt 7 positioned in the secondary bag 4 covers the vent hole 2.

In the present embodiment, the intake chamber 9 is formed between the first draw tape 5 and the opposite end of the intake draw tape 7, and the intake chamber 9 is completely penetrated on the right and left sides, which are the same as the right and left sides of the occupant or the right and left sides of the vehicle, to be noted. The air in the main bag 1 enters the air inlet chamber 9 through the left side and the right side of the air inlet chamber 9 and then enters the vent holes 2 through the air inlet chamber 9.

As shown in fig. 2 and 3, when the main bag 1 is in the inflated state and the front panel 3 is not in contact with the head of the occupant, the front panel 3 is in a tight state under the action of the internal gas, and the first pull belt 5, the second pull belt 6 and the air intake pull belt 7 are tightened, so that the first pull belt 5, the second pull belt 6 and the air intake pull belt 7 are all in the tight state. At this time, one section of the air inlet pull belt 7 positioned in the auxiliary bag 4 is tightly attached to one end of the vent hole 2 facing the auxiliary bag 4, so that the vent hole 2 is in a non-conduction state or a state with extremely small ventilation volume, in this state, the air in the main bag 1 can not enter the auxiliary bag 4 or only a very small volume of air can enter the auxiliary bag 4, and the auxiliary bag 4 is in a non-swelling state.

As shown in fig. 2 and 4, when the main bag 1 is inflated and the front panel 3 contacts with the head of the occupant, the front panel 3 is impacted by the head of the occupant and contracts toward the inside of the main bag 1, so that the first pull straps 5, the second pull straps 6 and the air intake pull straps 7 are all in a loose state. At this time, a large gap is generated between one section of the air inlet pull belt 7 in the auxiliary bag 4 and the outer side of the front panel 3, one section of the air inlet pull belt 7 in the auxiliary bag 4 is not attached to one end of the vent hole 2 facing the auxiliary bag 4 any more, so that the vent hole 2 is in a conduction state, in this state, the air in the main bag 1 can enter the auxiliary bag 4 through the vent hole 2, so that the auxiliary bag 4 protrudes in the direction of the passenger towards the passenger, and the neck region of the passenger is supported.

Because the air vent 2 is provided with the air inlet pull belt 7 towards one end of the auxiliary bag 4, the air flowing out of the main bag 1 can flow to the inner chamber of the auxiliary bag 4 from the left side and the right side of the air inlet pull belt 7 and fill the inner chamber after contacting with one section of the air inlet pull belt 7 positioned in the auxiliary bag 4, but not directly inflate and fill the inner chamber of the auxiliary bag 4 towards the direction of the passenger, so that the acting force of the auxiliary bag 4 towards the direction of the passenger generated in the swelling process is small, and the injury of the auxiliary bag 4 to the neck region of the passenger caused by swelling can be effectively reduced.

As shown in fig. 2, a reinforcing cloth 11 is provided between the first draw tape 5 and the fixed end of the front panel 3. One end of the reinforcing cloth 11 between the first draw tape 5 and the front panel 3 is fixed by a first sewing thread 10. The reinforcing cloth 11 is fixed to the inner side of the front panel 3 by a sewing except for one end fixed by the first sewing 10. The reinforcing cloth 11 is provided with a first communication hole communicated with the vent hole 2, and the size of the first communication hole is larger than or equal to that of the vent hole 2. The reinforcing cloth 11 is provided with a second communication hole communicated with the through hole 8, the axis of the second communication hole is coincident with the axis of the through hole 8, and the size of the second communication hole is larger than or equal to that of the through hole 8, so that one end, away from the first pull belt 5, of the air inlet pull belt 7 sequentially passes through the second communication hole and the through hole 8 to enter the inside of the secondary bag 4.

With the stiff end of first stretching strap 5 and front panel 3, the one end that strengthens cloth 11 and is located first stretching strap 5 and front panel 3 between one end and the air inlet stretching strap 7 and keep away from first stretching strap 5 is all fixed through first suture 10, can make first stretching strap 5, strengthen cloth 11, form the layer structure between front panel 3 and the air inlet stretching strap 7, increase holistic thickness, make and make up fixed back through first suture 10, first stretching strap 5 and air inlet stretching strap 7 can be more stable fix on front panel 3, make main bag 1 and vice bag 4 homoenergetic expand according to the shape of predetermineeing.

During the integral assembly, the periphery of the auxiliary bag 4 is firstly fixed on the front panel 3 in a sewing and fixing mode through a sewing thread, the middle area of the auxiliary bag 4 is firstly folded to form a folding end 12, the folding end 12 is fixed on the front panel 3 in a sewing and fixing mode through a pre-breaking thread 13, and the free end 14, far away from the front panel 3, of the auxiliary bag 4 is also fixed on the front panel 3 through fixing the folding end 12.

The pre-breaking line 13 can increase the resistance to be overcome by the inflation and the swelling of the secondary bag 4, thereby reducing the additional injury to the neck of the passenger caused by the swelling process of the secondary bag 4. And through folding, form folding end 12, increase the thickness of the area of sewing of the pre-broken line 13 through folding end 12, and then increase the expansion length of the pre-broken line 13, and then the secondary bag 4 is inflated and is bloated and need to overcome the resistance from the pre-broken line 13 bigger, produce the effort towards passenger's direction smaller, further reduce the impact that the secondary bag 4 bloates and causes to the passenger.

In other embodiments, secondary pouch 4 may be left unfolded and sewn directly in the middle area of secondary pouch 4 by pre-cut line 13, leaving a partial free end 14 on secondary pouch 4.

The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments can be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the product embodiments described later, since they correspond to the method, the description is simple, and the relevant points can be referred to the partial description of the system embodiments. The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A passenger airbag device characterized by comprising: a main bag (1),

the main bag (1) is provided with a vent hole (2), and the main bag (1) is also provided with an auxiliary bag (4) which completely covers the vent hole (2);

in the inflated state of the main bag (1), the gas in the main bag (1) flows into the auxiliary bag (4) through the vent hole (2), the auxiliary bag (4) protrudes out of the main bag (1) and faces to the front panel (3) of the passenger, and the auxiliary bag (4) is used for supporting the neck area of the passenger.

2. The passenger airbag device according to claim 1, wherein a first draw tape (5) and an intake draw tape (7) are provided in the main bag (1);

one end of the first drawstring (5) is connected with the inner side of the front panel (3), and the other end of the first drawstring (5) is connected with one end of the main bag (1) far away from the front panel (3) or an area on the automobile for installing the main bag (1);

one end of the air inlet pull belt (7) is connected with the first pull belt (5), the other end of the air inlet pull belt (7) penetrates out of a through hole (8) formed in the front panel (3) and extends into the auxiliary bag (4), and one section of the air inlet pull belt (7) located in the auxiliary bag (4) covers the vent hole (2);

when the main bag (1) is in an inflated state and the front panel (3) is not in contact with the head of a passenger, the air inlet pull belt (7), the first pull belt (5) and the front panel (3) are all in a tight state, and one section of the air inlet pull belt (7) positioned in the auxiliary bag (4) covers the vent hole (2);

when the main bag (1) is in an inflated state and the front panel (3) is in contact with the head of a passenger, the air inlet pull belt (7), the first pull belt (5) and the front panel (3) are in a loose state, and air in the main bag (1) flows into the auxiliary bag (4) through the vent holes (2).

3. A passenger airbag arrangement according to claim 2, characterised in that an air intake chamber (9) is formed between the air intake draw tape (7) and the first draw tape (5), the air intake chamber (9) being completely through on both left and right sides.

4. A passenger airbag arrangement according to claim 2, characterised in that the first drawstring (5) is secured to the front panel (3) by a first stitch (10);

one end of the air inlet pull belt (7) far away from the first pull belt (5) is fixedly connected to the outer side of the front panel (3) through a first sewing line (10).

5. A passenger airbag arrangement according to claim 4, characterised in that a reinforcement cloth (11) is arranged between the first drawstring (5) and the front panel (3);

one end of the reinforcing cloth (11) is fixedly connected with the first pull belt (5) and the front panel (3) through a first suture (10);

the other ends of the reinforcing cloth (11) are fixedly connected with the front panel (3) through sewing threads;

the reinforced cloth (11) is provided with a first communicating hole communicated with the air vent (2), the reinforced cloth (11) is further provided with a second communicating hole communicated with the through hole (8), and the second communicating hole is used for the air inlet pull belt (7) to pass through.

6. A passenger airbag arrangement according to claim 1, characterised in that the secondary pocket (4) is provided with a pre-break line (13), which pre-break line (13) secures a free end (14) of the secondary pocket (4) to the front panel (3).

7. A passenger airbag arrangement according to claim 6, characterised in that the secondary bag (4) is provided with a folded end (12);

the pre-breaking line (13) fixes the folding end (12) and the front panel (3) in a sewing way, so that the free end (14) on the auxiliary pocket bag (4) is fixed on the front panel (3).

8. The passenger airbag device according to claim 1, wherein the periphery of the secondary bag (4) is fixed to the front panel (3) by sewing.

9. The copilot airbag device according to claim 2, wherein a second drawstring (6) is provided in the main bag (1), one end of the second drawstring (6) is fixedly connected to the front panel (3), and the other end of the second drawstring (6) is fixedly connected to one end of the main bag (1) away from the front panel (3).

10. A passenger airbag arrangement according to claim 9, characterised in that the second pull strap (6) is located on the side of the first pull strap (5) facing away from the inlet pull strap (7).