CN104139757A - Side gas curtain and automobile safety device comprising same - Google Patents

Abstract

The invention provides a side air curtain and an automobile safety device with the side air curtain, belonging to the technical field of automobile safety. The utility model solves the problem of slow deployment speed of the existing automobile side air curtain air bag. The automobile safety device with a side air curtain includes a gas generator, a roof interior and a side air curtain arranged in the roof interior, and the roof interior is provided with a weakened line structure to facilitate the bursting of the side air curtain. The side air curtain has several independent air chambers, and each air chamber is provided with an inflation port connected with the gas generator. The air chambers are arranged in a line and the inflation direction of the air chambers is perpendicular to the arrangement direction of the air chambers. The side air curtain has multiple air chambers, and each air chamber is equipped with an independent gas generator, which can inflate the side air curtain at the same time, greatly improving the deployment speed of the side air curtain, and avoiding the obstruction of the side air curtain due to serious deformation of the side panel trim The problem of normal deployment can effectively improve the safety protection effect of the side air curtain on the driver of the car.

Description

Side air curtain and automobile safety device with side air curtain

technical field

The invention belongs to the technical field of automobile safety, and relates to a side air curtain and an automobile safety device with the side air curtain.

Background technique

In the process of a side collision of a car, the door, body side wall and sill structure are needed to absorb and transmit the side impact energy. At the same time, side airbags are also needed to assist in protecting the driver's life and reducing the damage.

But at present, because the living space of the side occupants of a single-person car is very narrow, and the side wall of the vehicle body is also easy to deform when a side collision occurs, it is impossible to protect the occupants according to the traditional arrangement and inflation deployment of side airbags and side air curtains.

For example, the utility model published by the Chinese Patent Application No. 201220535344.9 discloses a side air curtain air bag, which includes an air bag body sewn from air bag cloth, and the air bag body includes an air guide tube arranged on the upper part of the air bag body . An inflatable area arranged at the lower part of the airway, the inflatable area includes a left inflatable area and a right inflatable area, and a gap is provided between the left inflatable area and the right inflatable area. With this scheme, the gap on the air bag is set on the B-pillar, and the air bag can be deployed smoothly across the severely deformed area of the B-pillar car body during the deployment process, avoiding the failure of the protection of the side air curtain and protecting the safety of the occupants . However, this side air curtain device has only one air chamber and the corresponding inflation port, so the inflation speed is relatively slow, which reduces the deployment speed of the side air curtain, which easily hinders the normal deployment of the side air curtain when the side wall trim of the car is seriously deformed. The safety of car drivers cannot be effectively guaranteed.

Contents of the invention

The purpose of the present invention is to solve the problems mentioned above in the prior art, and propose a side air curtain that can be rapidly deployed.

The purpose of the present invention is to solve the above-mentioned problems in the prior art, and propose a car safety device that can rapidly expand the side air curtain to protect the driver.

The purpose of the present invention can be achieved through the following technical solutions: a side air curtain, comprising an air bag body formed by sewing the edges of two upper and lower air bag cloths, characterized in that the air bag body has several independent air chambers , the air bag body is provided with an inflation port connecting each air chamber with the outside world.

Each air chamber has its own inflation port, and multiple air chambers are inflated at the same time through multiple inflation ports, and the air bag body expands quickly to achieve the purpose of rapid deployment of the side air curtain.

In the above-mentioned side air curtain, the adjacent air chambers are separated by sewing the middle parts of the upper and lower pieces of airbag cloth with a sewing thread. The two pieces of airbag cloth are sewn together by sewing thread, and the whole airbag cloth is divided into multiple air chambers.

In the above-mentioned side air curtain, the separation lines formed by the sewing threads are straight lines and parallel to each other. The dividing line formed by the sewing thread is straight and parallel, and the air chambers are all columnar, so when the air chambers are inflated, if the inflating direction is consistent, the air bag body unfolds in the same direction.

A car safety device with a side air curtain, comprising a gas generator, a roof interior and a side air curtain arranged in the roof interior, characterized in that the roof interior is provided with a Weakening line structure, the side air curtain has several independent air chambers, each air chamber is provided with an inflation port connected with the gas generator, the air chambers are arranged in a line and the inflation direction of the air chamber is the same as that of the air chamber. The arrangement direction is perpendicular to each other.

In the event of a side collision, the gas generator is activated quickly to inflate the side air curtains. The side air curtain expands continuously in the interior of the roof, and the weakened line structure is torn. Since the air chambers are arranged in a horizontal line, the deployment direction is vertical, so the side air curtain quickly deploys in a predetermined direction after inflating to protect the driver. The role of the head and chest of the member.

In the above automobile safety device with side air curtains, the number of the air chambers is the same as the number of gas generators, and each gas charging port is provided with a corresponding gas generator. Each inflation port corresponds to a gas generator, so when the side air curtain is deployed, the expansion is uniform and the deployment is rapid.

In the above automobile safety device with side air curtains, there are two side air curtains and they are respectively located on both sides of the headliner, and the gas generators are also arranged symmetrically on both sides. The two side air curtains are symmetrically arranged on both sides of the headliner. In the event of a side collision, the side air curtains on the left and right sides will be deployed simultaneously to prevent the driver from being injured by colliding with the other side of the vehicle body.

In the above automobile safety device with side air curtains, the deploying direction of the side air curtains faces the door glass. The detonation direction of the side air curtain is toward the door glass, which can avoid the risk of accidental injury to the driver when the side air curtain is deployed.

In the above automobile safety device with a side air curtain, the corners of the side air curtain are connected with drawstrings. The pull strap is convenient for the side air curtain to be connected with the vehicle body after deployment, and is used to fix the deployed side air curtain to prevent the side air curtain from retracting or moving.

Compared with the prior art, the automobile safety device with the side air curtain has the following advantages:

1. The side air curtain is arranged in the interior of the roof and bursts out from the tear line of the interior of the roof, avoiding the influence of the deformation of the side panel interior and hindering the normal deployment of the side air curtain.

2. The two side air curtains are symmetrically arranged on both sides of the roof interior. In the event of a side collision, the side air curtains on the left and right sides will be deployed simultaneously to prevent the driver from being injured by colliding with the other side of the vehicle body.

3. The side air curtain has multiple air chambers, and each air chamber is equipped with an independent gas generator, which can inflate the side air curtain at the same time, greatly improving the deployment speed of the side air curtain, and avoiding the obstruction caused by the serious deformation of the side panel interior decoration The problem of the normal deployment of the side air curtain can effectively improve the safety protection effect of the side air curtain on the driver.

4. The detonation direction of the side air curtain is toward the side of the door glass, which can avoid the risk of accidents to the driver when the side air curtain is deployed.

Description of drawings

Figure 1 is a schematic structural view of the air curtain on this side.

Fig. 2 is a structural schematic diagram of an automobile safety device with a side air curtain.

Fig. 3 is a schematic diagram of the use state of the automobile safety device with the side air curtain.

In the figure, 1. Side air curtain; 2. Air chamber; 3. Gas generator; 4. Canopy interior; 5. Sewing thread; 6. Drawstring; 7. Inflatable port.

Detailed ways

The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

As shown in Figure 1, the side air curtain 1 includes an air bag body formed by sewing the edges of two upper and lower pieces of air bag cloth. The air bag body has several independent air chambers 2, and the air bag body is provided with 2. The inflation port 7 that communicates with the outside world.

Adjacent air chambers 2 are separated by sewing the middle of the upper and lower two airbag cloths with sewing thread 5, and the entire airbag cloth is divided into a plurality of air chambers 2, and the dividing lines formed by sewing thread 5 are straight lines and parallel to each other, so that After the air chamber 2 is inflated, the entire side air curtain 1 is deployed in the same direction.

As shown in Fig. 2 and Fig. 3, it is an automobile safety device with an air curtain 1 on this side, including a gas generator 3, a roof trim 4 and a side air curtain 1 arranged in the roof trim 4, and the roof trim 4 It is provided with a weakened line structure to facilitate the bursting of the side air curtain 1. The inflation port 7 of each air chamber 2 is connected with the gas generator 3 , the air chambers 2 are arranged in a line and the inflation direction of the air chambers 2 is perpendicular to the arrangement direction of the air chambers 2 . The automobile safety device greatly increases the deployment speed of the side air curtain 1, and at the same time avoids the problem that the normal deployment of the side air curtain 1 is hindered by the serious deformation of the side wall trim, and effectively improves the safety protection effect of the side air curtain 1 on the driver of the car.

Specifically, the number of gas chambers 2 is the same as the number of gas generators 3, and each gas filling port 7 is provided with a corresponding gas generator 3. The side air curtain 1 of this embodiment has two and is respectively located in the ceiling. On both sides of the decoration 4, the gas generator 3 is also symmetrically arranged on both sides. When a side collision occurs, the side air curtains 1 on the left and right sides will be deployed to both sides at the same time, so as to prevent the driver from being injured by bumping into the other side of the vehicle body. The deployment direction of the side air curtain 1 faces the door glass, which can avoid the risk of accidental collision to the driver when the side air curtain 1 is deployed. The side air curtain 1 adopts a combination structure of multiple gas generators 3 and multiple air chambers 2, which can not only speed up the inflation and deployment speed of the side air curtain 1, but also make the performance design of the side air curtain 1 more flexible and controllable, and at the same time support the use of larger side air curtains 1 to protect the driver's head and chest at the same time, without the need to use side airbags, thereby avoiding the problem of narrow space for side occupants and insufficient space for side airbag deployment.

In the event of a side collision of the vehicle, the side air curtains 1 on the left and right sides burst out from the weakened line structure of the headliner 4 toward the window glass at the same time, and are quickly inflated and deployed to protect the driver's head and chest . The corner of side air curtain 1 is connected with drawstring 6, and drawstring 6 is connected with automobile body after the side air curtain 1 is expanded conveniently.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which the present invention belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the present invention or go beyond the definition of the appended claims range.

Claims (8)

1. A side air curtain, comprising an air bag body formed by sewing the edges of two pieces of air bag cloth up and down, it is characterized in that the air bag body has several independent air chambers (2), and the air bag body is provided with An air filling port (7) that communicates each air chamber (2) with the outside world. 2 . The side air curtain according to claim 1 , characterized in that, the adjacent air chambers ( 2 ) are separated by sewing the middle parts of the upper and lower two pieces of air bag cloth with a sewing thread ( 5 ). 3. The side air curtain according to claim 2, characterized in that, the separation lines formed by the sewing lines (5) are straight lines and parallel to each other. 4. A car safety device with a side air curtain, comprising a gas generator (3), a headliner (4) and a side air curtain (1) arranged in the headliner (4), it is characterized in that the The roof trim (4) is provided with a weakened line structure to facilitate the bursting of the side air curtain (1), and the side air curtain has several independent air chambers (2), and each air chamber (2) is provided with a The generator (3) is connected to the inflation port (7), the air chambers (2) are arranged in a line and the inflation direction of the air chambers (2) is perpendicular to the arrangement direction of the air chambers (2). 5. The automobile safety device with side air curtain according to claim 4, characterized in that, the number of said air chambers (2) is the same as that of the gas generators (3) and each inflation port (7) is provided with a corresponding Corresponding gas generator (3). 6. The automobile safety device with side air curtain according to claim 5, characterized in that, the side air curtain (1) has two and is respectively located on both sides of the headliner (4), and the gas generator (3) also arranged symmetrically on both sides. 7. The vehicle safety device with a side air curtain according to claim 4, 5 or 6, characterized in that, the deployment direction of the side air curtain (1) faces the door glass. 8. The vehicle safety device with a side air curtain according to claim 7, characterized in that a drawstring (6) is connected to a corner of the side air curtain (1).