KR101292323B1 - Side airbag module for vehicle seat - Google Patents

Abstract

The disclosed side airbag module for an automobile seat enhances the support strength of the airbag against impact from the occupant and prevents the airbag from rotating behind the vehicle. Automotive side airbag modules include airbags; An inflator configured to supply gas to the airbag so that the airbag is deployed; And a support member for receiving the airbag in a folded state and supporting a side facing one side of the airbag in which the occupant collides while the airbag is deployed. The airbag includes a main bag that protects the body and the head of the occupant, and an anti-rotation bag that prevents the main bag from rotating behind the vehicle when the main bag is inflated.

Description

Side airbag module for car seat {SIDE AIRBAG MODULE FOR VEHICLE SEAT}

The present invention relates to a side airbag module installed on at least one side inside the vehicle seat.

The vehicle airbag module mitigates the impact when the occupant hits the interior of the vehicle when the vehicle is impacted.

Among the vehicle airbag modules, a side airbag module is known that allows the airbag to be deployed between the sidewall of the vehicle in which the door is provided and the occupant. This side airbag module is installed on at least one side in the seatback of the car seat.

The side airbag module, when gas is supplied from the inflator into the airbag, the airbag destroys the airbag housing by the inflation pressure, moves between the seat pads provided in the seat cover, and destroys the seam of the seat cover. It is configured to develop as.

The airbag is configured to protect or simultaneously protect the body and the head of the occupant, and is made of a soft material to reduce the amount of impact from the occupant.

Such airbags require some support strength to maintain proper deployment (such as form and position) against impact forces from the occupant.

However, such airbags are particularly fragile in the vicinity of the airbag's inflator as it takes the form of a cantilever in which the side connected with the inflator is supported in the inflated state. Therefore, bending or rotation easily occurs in the vicinity of the inflator of the airbag due to the impact force with the occupant.

 In addition, while the airbag is inflated, there is a problem that the airbag is rotated toward the rear of the vehicle R around the portion connected to the inflator and deviated from the position for cushioning the occupant due to the inflation pressure of the airbag. In particular, in the case of the airbag for protecting the body and the head of the occupant at the same time take the approximately "L" shape to make the rotation more easily behind the car.

An object of the present invention is to prevent the occurrence of bending or rotation of the airbag by the impact force when the occupant hits the inflated airbag during the vehicle collision side airbag module for the car seat to maintain the proper deployment state (shape or position) To provide.

Another object of the present invention is to provide a side airbag module for an automobile seat which prevents the airbag from rotating backward by the inflation pressure while the airbag is inflated.

According to an aspect of the invention, the airbag is installed on at least one side in the back of the seat, an airbag; An inflator for supplying gas to the airbag so that the airbag is deployed; A side airbag module for an automobile seat is provided which includes an airbag in a folded state and a support member supporting an opposite side of the airbag facing one side of the airbag in which the occupant collides while the airbag is deployed.

 The support member of the present invention may include a base wall to which the rear wall and one end of the seat frame installed in the seat are coupled, and a support wall protruding toward the front of the vehicle from the other end of the base wall to support the opposite side of the airbag.

The support member of the present invention comprises an additional base wall coupled with the inflator by a coupling member on the side wall of the seat frame installed in the seat, a base wall extending from the additional base wall, and extending from the base wall to the front of the vehicle to face the airbag. It may include a support wall for supporting.

The support member of the present invention may further include a guide wall extending inclined toward the occupant side from the front end of the support wall, the guide wall may include a cutting portion to reduce the friction area with the inflated air bag. In addition, an upper guide wall protruding toward the front of the vehicle from the top of the base wall may be further included.

The airbag of the present invention may be formed to have a length that abuts the ceiling of the vehicle so that the deployed airbag contacts and is supported by the ceiling of the vehicle.

The support member of the present invention may be made of steel or plastic material.

The airbag of the present invention includes a main bag for protecting the body protector and the head protector of the occupant; And an anti-rotation bag that is integrally formed at the upper end of the gas supply part of the main bag and extends upwardly of the vehicle to prevent the main bag from rotating to the rear of the vehicle.

The upper end of the support member of the present invention, the main bag is preferably located higher than the top of the valley formed by the anti-rotation bag.

According to another aspect of the present invention, the airbag is installed on at least one side of the back of the car seat, and includes an inflator for supplying gas to the airbag and the airbag to deploy the airbag, wherein the airbag protects the body protector and the head protector of the occupant The main back; And a rotation prevention bag provided at the rear of the main bag to prevent the main bag from rotating back to the rear of the vehicle when the main bag is deployed.

The anti-rotation bag of the present invention may be formed to correspond to the head protector while being elongated upward of the vehicle.

The main bag and the anti-rotation bag of the present invention may be integrally formed.

The main bag and the anti-rotation bag of the present invention are provided separately, and a separate inflator may be connected to each of the main bag and the anti-rotation bag.

When the occupant hits the inflated airbag due to a vehicle collision, the present invention may support the opposite side facing one side of the airbag on which the occupant hits, so that the airbag maintains an appropriate protection form and position.

In addition, the present invention can prevent the airbag from rotating to the rear of the vehicle at the inflation pressure of the airbag, thereby preventing the airbag from deviating from the position for protecting the occupant.

1 is a perspective view of a vehicle equipped with a vehicle side airbag module according to the present invention;
Figure 2 is a perspective view showing the deployed state of the airbag of the vehicle side airbag module according to the present invention;
3 is a cross-sectional view taken along line 3-3 of FIG. 1;
4 is a cross-sectional view taken along line 4-4 of FIG. 2;
Figure 5a is a perspective view schematically showing a state in which the airbag is supported by the support module of the present invention;
5B is an enlarged perspective view of an arrow C part in FIG. 5A;
6 is a cross-sectional view showing the configuration of another vehicle side airbag module of the present invention;
7 is a perspective view schematically showing another vehicle side airbag module of the present invention; ego
FIG. 8 is a side view along arrow “B” in FIG. 7.

In the following description, the forward direction of the vehicle is "forward F", the backward direction of the vehicle is "rear R", and the ceiling direction of the vehicle is "upper U."

1 is a perspective view showing the inside of a vehicle equipped with a vehicle side airbag module according to the present invention, Figure 2 is a perspective view showing an airbag deployed state of the vehicle side airbag module according to the present invention.

As shown in FIGS. 1 and 2, the seat 10 provided in the vehicle 1 includes a seat 11, a seat cushion 13, a seakback 13, a back panel 15 and a back panel 15. A seat pad 18 covered by the seat cover 17 is included. At least one side portion of the backrest 13 is provided with a side airbag module 100.

The side airbag module 100 shown in Figs. 1 and 2 is installed at one side of the vehicle backside (not shown) provided with a door (not shown) in the backrest 13, and between the occupant P and the vehicle sidewall. The airbag 110 is deployed.

Alternatively, the side airbag module 100 may be additionally installed at the other side of the backrest 13 so that the airbag is deployed between the occupants to prevent collisions between the occupants.

The side airbag module 100 may be installed on at least one of both side portions (left and right sides of the passenger) in the backrest 13. 1 shows that the side airbag module 100 is installed on both sides of the driver's seat (right side in FIG. 1) and one side of the passenger seat side, but the airbag module 100 may be installed on both sides of the passenger seat (left side in FIG. 1). .

3 is a cross-sectional view taken along line 3-3 of FIG. 1, and FIG. 4 is a cross-sectional view taken along line 4-4 of FIG.

As shown in FIGS. 3 and 4, the side airbag module 100 is installed in the seat frame 19 provided in the seat 10. The seat pad 18 includes a first seat pad 18a disposed in front of the seat frame 19 and a second seat pad 18b disposed near the side of the seat frame 19. The seat pad 18 is disposed between the seat frame 19 and the seat cover 17, and is made of a shock absorbing member such as sponge or soft PVC (Polyvinyl Chloride). The seat cover 17 includes seams 17a and neighboring neighboring portions of the first and second seat pads 18a and 18b.

The side airbag module 100 supplies an airbag 110, an inflator 130 for supplying gas to the airbag 110 to deploy the airbag 110, and an airbag housing accommodating the airbag 110 in a folded state. Support member 170 (accommodating a support member 170) for accommodating a part of the opposite side 113 of the one side 111, which accommodates the 150 and the airbag housing 150, the occupant P of the airbag 110 is hit Include.

The airbag housing 150 is broken by the inflating force of the airbag 110 so that the airbag 110 is deployed to the outside of the airbag housing 150. The airbag housing 150 is made of a thin sheet material made of a fabric or a synthetic resin that wraps the folded airbag 110 so that it can be easily broken when the airbag 110 is inflated. Alternatively it may be composed of a rigid material (rigid material).

The inflator 130 is coupled to the side wall 19b of the seat frame 19 protruding toward the front of the vehicle through the first coupling member 191, for example, a bolt. The inflator 130 generates gas by exploding gunpowder or compressed gas therein according to the collision signal of the vehicle. The inflator 130 is installed in a vehicle and connected to a side collision detection sensor (not shown) for detecting a side collision.

As shown in FIG. 4, the support member 170 supports the side 113 facing the one side 111 of the airbag 110 where the occupant P collides to increase the support strength of the airbag 110. . As a result, when the occupant P collides with the inflated airbag 110, the impact force exerted by the occupant P causes bending of a portion of the airbag 110, particularly near the inflator 130 of the airbag 110. This prevents the back from occurring, such that the airbag 110 maintains an appropriate protection form and position.

Figure 5a is an enlarged perspective view showing the configuration of the support member of the vehicle side airbag module according to the present invention, Figure 5b is an enlarged perspective view of the arrow C portion of Figure 5a.

As shown in FIGS. 5A and 5B, the support member 170 may include a second coupling member 193 on the rear wall 19a that is substantially orthogonal to the front F or rear R of the vehicle of the seat frame 19. For example, one side 111 of the base wall 171 (base wall) to which one end is coupled through a bolt nut, etc., and the airbag 110 protruding from the other end of the base wall 171 to the front of the vehicle F to collide with the occupant P. It includes a support wall (175, 175) for supporting a part of the opposite side 113 to the.

The support wall 175 may have a length corresponding to the thickness of the backrest 13 along the front of the vehicle to secure a wider support area of the airbag 110.

The front of the support wall 175 may further include a guide wall 179 extending inclined toward the occupant (P) side. The guide wall 179 restricts the airbag 110 from being deployed toward the door (not shown) to allow the airbag 110 to be deployed to the correct position between the occupant P and the door.

The guide wall 179 may include a cutting portion 179a at its end side to reduce the friction portion with the inflated airbag 110.

The support member 170 is a material having a rigidity that can prevent the airbag 110 from being bent or rotated against the impact force applied from the occupant P, and may be formed of, for example, steel or plastic synthetic resin. have.

6 is a cross-sectional view showing an example of another support member according to the present invention.

Since the basic structure is the same as FIG. 3, the same code | symbol is attached | subjected about the same part as FIG. 3, and the overlapping description is abbreviate | omitted.

Unlike FIG. 3, the support member 170 further includes an additional base wall 177.

The additional base wall 177 is coupled to the side wall 19b of the seat frame 19 extending from the rear wall 19a of the seat frame 19 toward the front of the vehicle F. The additional base wall 177 may be coupled to the side wall 19b of the seat frame 19 together with the inflator 130 through the first coupling member 191 to reduce coupling effort.

Referring back to FIG. 4, the airbag 110 is inflated by the gas supplied from the inflator 130, and the airbag housing 150 is destroyed. Subsequently, the airbag 110 moves through the deployment path between the first and second seat pads 18a and 18b while pushing the first seat pad 18a to one side to push the seam 17a of the seat cover 17. It breaks and unfolds out of the seat cover 17. At this time, the second seat pad 18b is not pushed toward the side wall of the vehicle by the inflation pressure of the airbag 110 by the support wall 175 of the support member 170.

On the other hand, the inflated airbag 110 is not interfered with the door by the guide wall 179, the deployment direction is restricted to an appropriate position between the occupant (P) and the door, the cutting portion 179a formed on the guide wall 179 As a result, the friction area with the guide wall 179 is reduced, so that it can be deployed smoothly.

The support wall 175 supports the part of the opposite side 113 facing the one side 111 of the airbag 110 that collides with the occupant P against the impact force from the occupant P so that the airbag 110 occupies the occupant. It is reduced from being pushed or bent along the direction in which the impact force from (P) is applied (arrow A).

5A illustrates an example in which the passenger seat side passenger P is moved to the door side (arrow A direction) of the vehicle and collides with one side 111 of the airbag 110. However, the collision direction of the occupant P may vary depending on the crash situation, of course.

Passengers (P) may collide with airbags deployed between them. Can be. Even in this case, the support wall 175 of the support member 170 supports the opposing side facing one side of the airbag colliding with the occupant P to counter the impact force transmitted from the occupant P. Accordingly, the bending or rotation of the airbag 110 is reduced, so that the airbag 110 maintains an appropriate protection form and position.

In detail, as an example, when the driver's seat collides toward the front passenger's seat (see FIG. 1), as described above, the support strength of the airbag 110 is strengthened by the support member 170 so that the driver's seat occupies the passenger's seat along the collision direction. It is prevented from being pushed back to prevent collision with the passenger seat occupant. On the other hand, the guide wall 179 formed to be inclined toward the driver side from the front end of the support wall 175 restricts the airbag 110 from being deployed to the passenger seat side, so that the airbag 110 achieves an appropriate deployment position.

The air bag 110 may be configured to have a length that can be in contact with the roof of the vehicle 2 when deployed, and may be configured to be supported by the frictional force on the vehicle ceiling 2. By such a configuration, it is possible to more effectively prevent the occupants from bumping each other by strengthening the bearing capacity of the airbag 110.

FIG. 7 is a perspective view illustrating a state in which an airbag of another vehicle side airbag module of the present invention is deployed, and FIG. 8 is a side view along arrow B of FIG. 7.

The side airbag module illustrated in FIGS. 7 and 8 includes the same components as those described above except for the airbag. Therefore, the same reference numerals are used to designate components that overlap with the above description, and description thereof will be omitted.

The air bag 120 may include a main bag 121 that protects the occupant P, and a gas supply part H of the main bag 121 supplied with gas from the inflator 130 when the main bag 121 is inflated. Main anti-rotation bag 123 to prevent the main bag 121 to rotate in the counterclockwise direction (CCW) toward the rear (R) of the vehicle.

The main bag 121 includes a body protector 121a protecting the body of the occupant P, and a head protector 121c protecting the head of the occupant P. The main bag 121 has an approximately "L" shape.

The anti-rotation bag 123 is provided on the rear side of the main bag 121 to substantially correspond to the head protector 121c of the main bag 121, and has a deployment shape extending to the upper side of the vehicle U.

The main bag 121 tries to rotate in the counterclockwise direction (CCW) by the inflation pressure, but the anti-rotation bag 123 is supported by the base wall 171 of the support member 170 so that the main bag 121 rotates. To prevent

At this time, the upper end 171a of the base wall 171 is higher than the valley point V formed by the main bag 121 and the anti-rotation bag 123 to widen the area where the anti-rotation bag 123 is supported, thereby expanding the main bag ( The anti-rotation effect of 121) can be enhanced.

The upper guide wall 171b protruding from the upper end 171a of the base wall 171 toward the front of the vehicle F is provided to compensate for the force in the front direction of the vehicle F against the rotational force of the anti-rotation bag 123. (See FIGS. 1, 5A and 7).

When the main bag 121 and the anti-rotation bag 123 are integrally formed and gas is simultaneously supplied by one inflator 130, for example, the main body 121 and the head protection of the main bag 121 are protected. Divided into a portion 121c, a sewing portion (not shown) may be included at a position where the main bag 121 and the anti-rotation bag 123 may be divided.

The sewing unit has a structure for adjusting the deployment order of the body protector 121a, the head protector 121c, and the anti-rotation bag 123 so that the body protector 121a is first inflated, and then the protector 121c is The anti-rotation bag 123 may be configured to expand at approximately the same time as the time of inflation.

Alternatively, the main bag and the anti-rotation bag may be configured separately so that the anti-rotation bag is inflated at about the same time as the head protection portion of the main bag is inflated. In this case, two inflators are required.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

1: car 10: sheet
13: back 15: back panel
19: seat frame 19a: seat frame rear wall
19b: seat frame sidewall 100: side airbag module
110, 120: airbag 121: main bag
123: anti-rotation bag 130: inflator
150: airbag housing 170: support member
171: base wall 175: support wall
177: additional base wall 179: guide wall
179a: cutting portion 191: first coupling member
193: second coupling member

Claims (13)

It is installed in at least one side in the backrest of an automobile seat, The airbag; In the side airbag module for a car seat comprising an inflator for supplying gas to the airbag to deploy the airbag,
A support member for receiving the airbag in a folded state and supporting an opposite side of the airbag facing one side of the airbag in which an occupant collides while the airbag is deployed;
Wherein the support member comprises:
A base wall provided inside the seat frame;
A support wall extending from the base wall to the front of the vehicle to support the opposite side of the airbag;
A guide wall inclined toward the occupant side from the front end of the support wall; And
And an upper guide wall extending toward the front side of the vehicle from an upper end of the base wall.
The side airbag module of claim 1, wherein one end of the base wall is coupled to a rear wall of a seat frame installed in the seat.
2. The side of an automobile seat according to claim 1, wherein the support member further comprises an additional base wall extending from the base wall to be coupled with the inflator by a side wall of the seat frame installed in the seat and the coupling member. Airbag module.
4. The side airbag module for an automobile seat according to claim 2 or 3, wherein the guide wall further includes a cutting portion to reduce the contact area with the airbag.
delete The method of claim 1,
The support member is a side airbag module for an automobile seat, characterized in that made of steel or plastic material.
The method of claim 1,
The airbag includes a main bag for protecting the body protector and the head protector of the occupant; And
And an anti-rotation bag integrally formed at an upper end of the gas supply part of the main bag and extended to the upper side of the vehicle to prevent the main bag from rotating to the rear of the vehicle.
The method of claim 7, wherein
The upper end of the support member is a side airbag module for a car seat, characterized in that located above the car than the valley formed by the main bag and the anti-rotation bag.
The method of claim 1,
The airbag module is formed in a length that is in contact with the ceiling of the vehicle side airbag module for a vehicle seat, characterized in that the deployed airbag is in contact with the ceiling of the vehicle is supported.
In a side airbag module for a car seat is installed on at least one side in the back of the car seat, and includes an inflator for supplying gas to the airbag and the airbag to deploy the airbag,
The airbag main bag to protect the body protection and head protection of the occupant; And
And a rotation preventing bag provided at the rear of the main bag to prevent the main bag from rotating to the rear of the vehicle at the center of the gas supply part of the main bag when the main bag is deployed.
11. The side airbag module for an automobile seat according to claim 10, wherein the anti-rotation bag extends upwardly of the vehicle to correspond to the head protector.
12. The method of claim 11,
Side airbag module for an automobile seat, characterized in that the main bag and the anti-rotation bag are integrally formed.
12. The method of claim 11,
The main bag and the anti-rotation bag are provided separately, side airbag module for a vehicle seat, characterized in that a separate inflator is connected to each of the main bag and the anti-rotation bag.

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