JP6272180B2 - Side airbag device - Google Patents

Description

  The present invention relates to a side airbag device for alleviating an impact applied from the side of a vehicle body, and more particularly to a side airbag device disposed between a vehicle body and a rear seat.

  Conventionally, as a side airbag device disposed between a vehicle body door and a rear seat in the vehicle body width direction, an inflator for injecting gas into the airbag, a storage box for storing the airbag and the inflator, and a storage box A resin base cover that covers from the front side of the vehicle body is known (for example, see Patent Documents 1 and 2).

In the side airbag device described in Patent Document 1, when an airbag stored in a metal storage box is inflated with an inflator, the airbag destroys the thin wall portion of the resin base cover on the front side of the vehicle body. It is configured to bulge and expand.
More specifically, when an impact of a predetermined value or more is applied from the side of the vehicle body, an impact sensor (not shown) senses, the ignition power is supplied to the inflator, and the airbag is inflated and deployed on the side of the seated person. Become.

Moreover, in the airbag apparatus for side collision described in patent document 2, the airbag module in which the airbag and the inflator were stored is provided in the side part of a rear seat, and a cushion pad is mounted in the front surface of an airbag module. It is made up of covered with a skin cover.
At this time, a webbing is attached to a portion corresponding to the vehicle outer side on the back surface of the skin cover so that the bulging direction of the airbag is concentrated on the tearing portion provided on the skin cover.
With the above configuration, the airbag is inflated and deployed toward the cleaving portion of the skin cover on the front side of the vehicle body.

JP 2009-40328 A JP 11-91487 A

By the way, since the side airbag apparatus like patent document 1 is assembled | attached so that it may fit in the narrow space between a vehicle body door and a rear seat, the assembly operation | work of each component is carried out, aiming at compactness. There is a need to make it easier.
In particular, the baffle that guides the inflation direction of the airbag generally has one end attached to the skin cover side and the other end attached to the airbag module side. It has been desired to facilitate the work of assembling the cloth.

Further, in the side airbag devices such as Patent Documents 1 and 2, when the inflator is activated and the airbag is inflated, the gas pressure of the inflator is loaded around the airbag module, so The attachment with the bag module side becomes unstable, which may affect the direction of inflation of the airbag.
Therefore, a technique capable of stabilizing the bulging and deploying direction of the airbag by ensuring the attachment rigidity of the bundling has been desired.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a side airbag device that can be easily assembled.
In particular, an object of the present invention is to provide a side airbag device that is disposed in a space between a vehicle body and a rear seat and that allows easy assembly of a power cloth.
Another object of the present invention is to provide a side airbag device capable of stabilizing the inflation and deployment direction of an airbag.

  According to the side airbag device of the present invention, the above-described problem is a side airbag device provided between a vehicle body and a rear seat, in which an inflatable airbag and gas are supplied into the airbag An inflator, a folded-up airbag, and a base storage portion for storing the inflator, and a base member attached between a vehicle body door and the rear seat, and covering the base member from the front side of the vehicle body A cover member, and a baffle having one end attached to the cover member and the other end locked to a baffle locking portion provided on the base member, and guiding a bulging and deploying direction of the airbag. The other end side of the webbing includes a locking member that is locked to the webbing locking portion, and a webbing extension that extends to the other end side from the locking member, Is provided. It is.

As described above, on the other end side of the webbing, there are a locking member locked to the webbing locking part, and a webbing extension part extending to the other side of the locking member. Since it is provided, the assembly work of the bundling becomes easy.
More specifically, when assembling a baffle, generally one end side is attached to the cover member by sewing or the like, and then the other end side is pulled to engage with a baffle locking portion provided on the airbag module side. When the operator stops, the operator pulls the other end side of the webbing as the operator grips the webbing extension that extends to the other side of the locking member. The operation | work which latches a stop member to a baffle latching | locking part becomes easy.
In particular, in the case of a side airbag device assembled in a narrow space between the vehicle body and the rear seat, the present invention is meaningful because it is necessary to dispose the bundling in a relatively complicated manner under a situation where visual confirmation is difficult. Become something,

At this time, the webbing latching portion is a webbing latching groove for embedding the latching member, and the webbing extends continuously from one end attached to the cover member, It is preferable that the insertion hole provided in the base member is inserted, and the other end portion is wooded in the force cloth locking groove on the vehicle body rear side of the base member.
As described above, after one end is attached to the cover member, the force cloth is pulled through the insertion hole provided in the base member by pulling the other end portion, and the force cloth is located on the vehicle body rear side of the base member. When the operator pulls the other end of the baffle and inserts it into the insertion hole, the baffle extension is inserted through the insertion hole first and pulled from the rear side of the vehicle body. As a result, the assembly work of the bundling is improved.
And when the operator puts the locking member at the other end of the blanket into the blanching groove, it can be attached to and detached from the bundling groove while holding the bundling extension part. Assembly work is easy and stable in situations where visual confirmation is difficult. As a result, the attachment of the bundling is stabilized and the bulging and deploying direction of the airbag can be stabilized.

At this time, it is preferable that the force extending portion is formed to be thinner than the locking member.
Moreover, it is good for the said bedding extension part to be formed so that it may become narrower than at least one of the said bedding and the said locking member.
With the above-described configuration, it becomes easier for the operator to pull the other end portion of the bundling and insert the bundling extension portion into the insertion hole first. As a result, the assembling work of the bundling is significantly improved.

At this time, the locking member includes a first locking member that is grained into the baffle locking groove at the other end of the buffing cloth, and the baffle locking groove in the extending direction of the buffing cloth. And a second locking member disposed between the insertion hole and the insertion hole.
As described above, since the second locking member is disposed between the baffle locking groove and the insertion hole in the extending direction of the buffing cloth, the assembling work of the bundling is facilitated and the airbag is used. The bulging and unfolding direction is stabilized.
Specifically, for the assembly work of the blanket, when the first locking member at the other end of the blanket is put into the blanket locking groove, the blanket is in a tensioned state, so It becomes difficult. At this time, by inserting another second locking member on the other end side of the baffle into the insertion hole and then hooking it around the insertion hole, the graining operation of the first locking member is performed. Greatly improved.
In addition, even when gas pressure is applied when the airbag is inflated and deployed, the second locking member is supported in a state of being hooked around the insertion hole, so that the first locking member is hooked. It can suppress coming off from a groove | channel. For this reason, the attachment of the bundling is stable, and the bulging and deploying direction of the airbag is stabilized.

At this time, the second locking member may be disposed so as to be wide with respect to the opening of the insertion hole in a state in which the webbing is assembled.
The first locking member may be disposed so as to be wide with respect to the opening of the insertion hole in a state where the webbing is assembled.
With the above configuration, since the second locking member and the first locking member have a shape that is more easily caught around the insertion hole, as described above, the assembling work of the bundling is further facilitated, and the airbag The bulging and expanding direction is further stabilized.

At this time, a retainer member that covers the base storage portion and the baffle locking groove from the rear side of the vehicle body is provided, and the locking member partially protrudes from the baffle locking groove. It is preferable that the grain is inserted into the stop groove, and the overhanging portion extends toward the retainer member.
As described above, the retainer member simultaneously covers the base storage portion for storing the airbag and the inflator and the force cloth locking groove for locking the other end portion of the force cloth from the rear side of the vehicle body. Not only the rigidity around the part, but also the mounting rigidity of the power cloth is improved.
Further, according to the above configuration, even when a gas pressure is applied to the periphery of the baffle locking groove when the airbag is inflated and deployed, the buffling locking member is detached from the buffling locking groove by holding the retainer member. Can be suppressed. That is, the attachment of the bundling is stable.
Further, with the above configuration, the operator can attach and detach the forceps locking groove while gripping the protruding portion of the locking member, so that the assembling work is easy and stable under a situation where visual confirmation is difficult.

According to the invention of claim 1, the assembling work of the power cloth is facilitated by the force cloth extending portion.
In particular, in the case of a side airbag device assembled in a narrow space between the vehicle body and the rear seat, the present invention is meaningful because it is necessary to dispose the bundling in a relatively complicated manner under a situation where visual confirmation is difficult. Become something,

  According to the second, third, and fourth aspects of the invention, the assembling work of the bundling is easy and stable under a situation where visual confirmation is difficult. As a result, the direction in which the airbag is inflated and deployed can be stabilized.

According to the fifth, sixth, and seventh aspects of the invention, the second locking member facilitates the assembling work of the bundling and stabilizes the bulging and deploying direction of the airbag.
According to the eighth aspect of the invention, the retainer member improves not only the rigidity around the base storage portion but also the mounting rigidity of the force cloth. In addition, the assembly work of the bundling is easy and stable.

It is explanatory drawing which shows arrangement | positioning of the side airbag apparatus of this embodiment. It is a perspective view when the base member of a side airbag apparatus is seen from the front side. It is a perspective view when a base member is seen from the back side. It is a disassembled perspective view explaining the assembly structure of a base member and a retainer member. It is a disassembled perspective view explaining the structure of the assembly shaft and assembly member of an inflator. It is AA sectional drawing of FIG. 1, Comprising: It is a figure which shows the state in which the airbag was stored. It is a principal part enlarged view of FIG. 6, Comprising: It is a figure which shows a baffle latching groove periphery. It is detail drawing which shows the other end part of a force cloth. It is AA sectional drawing of FIG. 1, Comprising: It is a figure which shows the state which the airbag expanded. It is explanatory drawing of FIG. 6 which concerns on 2nd Embodiment. It is detail drawing which shows the modification of the other end part of a bundling. It is detail drawing which shows the modification of the other end part of a bundling. It is detail drawing which shows the modification of the other end part of a bundling.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
The present embodiment is a side airbag device provided between a vehicle body door and a rear seat, and includes a base storage portion that stores the airbag and the inflator, a skin material that covers the base storage portion from the front side of the vehicle body, and a skin One end part is attached to the material, and the other end part is inserted into the insertion hole provided in the periphery of the base storage part and is locked in the baffle locking groove, and the baffle guides the bulging direction of the airbag. The other end portion of the buff is provided with a locking member that is grained into the baffle locking groove, and a baffle extending portion that extends from the position of the other end than the locking member, The present invention relates to an invention of a side airbag device characterized by being provided.

The side airbag device S of the present embodiment is a device for alleviating an impact applied to a seated person from the side of the vehicle body, and as shown in FIG. 1, serves as a backrest portion of the rear seat 1 in the vehicle body width direction. It is disposed between the seat back 1 a and the vehicle body door 2 a of the vehicle body 2.
Note that the side airbag devices S are respectively disposed on the left and right outer sides of the rear seat 1 in the vehicle body width direction.

As shown in FIG. 2, the side airbag device S stores an inflatable airbag 10, an inflator 11 that supplies gas into the airbag 10, and a folded airbag 10 and inflator 11. As shown in FIG. 3, the retainer member 30 that holds the airbag 10 and the inflator 11 stored in the base member 20 from the rear side of the vehicle body and the inflator 11 are connected to the ignition power as shown in FIG. And a harness 40 for supplying.
Further, as shown in FIG. 6, the side airbag device S includes a pad member 50 placed at a position on the vehicle body front side of the base member 20, and a skin material that covers the base member 20 and the pad member 50 from the vehicle body front side. 60, and one end portion is sewn to the skin material 60, the other end portion is locked to the base member 20, and a force cloth 70 for guiding the bulging direction of the airbag 10 is provided.
The skin material 60 corresponds to a cover member in the claims.

When an impact is applied from the side of the vehicle body, the airbag 10 is formed of a bag-like member that expands and expands in a balloon shape toward the front side of the vehicle body from the folded state shown in FIG. 6 as shown in FIG. .
More specifically, the airbag 10 is inflated by being connected to the airbag 10 and supplying gas from the inflator 11 serving as a gas generation source toward the inside of the airbag 10.
As shown in FIG. 2, the inflator 11 is composed of a long and substantially cylindrical gas generator, and is arranged to be long in the vertical direction.
The inflator 11 projects from the outer surface to the front side of the vehicle body and is connected to the inside of the airbag 10, an unillustrated airbag connecting portion, a harness connecting portion 12 formed at the upper end and connected to the harness 40, An assembly shaft portion 13 that protrudes to the side of the vehicle body from the outer surface and is assembled to the base member 20 and the retainer member 30 is provided.

In the above configuration, when an impact is applied from the side of the vehicle body, ignition power is supplied to the inflator 11 via the harness 40 from a vehicle battery (not shown) disposed on the underside of the seated person on the vehicle body. Bulges on the side of the seated person.
The airbag 10 and the inflator 11 are stored in a base storage unit 24 described later provided in the base member 20.

The base member 20 is made of a resin frame member that serves as a substrate of the side airbag device S, and stores the airbag 10 and the inflator 11 as shown in FIG.
The base member 20 has a substantially inverted L shape when viewed from the side of the vehicle body, and is disposed between the seat back 1a and the vehicle body door 2a in the vehicle body width direction, and has an upper end portion and a lower end portion that are not shown. Is detachably attached.
As shown in FIGS. 2 and 3, the base member 20 includes a base main body 21 disposed between the rear seat 1 and the vehicle body 2, and a vehicle body continuously from both ends of the base main body 21 in the vehicle width direction. It is mainly composed of a base outer wall portion 22 and a base inner wall portion 23 that extend rearward.

The base body portion 21 is formed of a substantially inverted L-shaped plate member, and is integrally formed as a component slightly closer to the vehicle body outer side than the central portion in the vehicle body width direction, and is recessed toward the vehicle body rear side. And a base attachment portion 21a that is integrally formed below the base storage portion 24 and attached to a vehicle body member (not shown).
The base outer wall portion 22 is disposed at a portion facing the vehicle body door 2a, and a plurality of extending end portions are provided at intervals in the vertical direction, and a locking claw 22a that locks one end portion of the skin material 60. Is formed.
The base inner wall portion 23 is disposed at a portion facing the seat back 1a, and as shown in FIG. 3, the extended end portion is provided to extend in the vertical direction, and the other end portion of the skin material 60 is provided. A graining groove 23a is formed for graining.

As shown in FIG. 2, the base storage portion 24 is formed of a vertically long box having an opening on the front side of the vehicle body, and includes a substantially convex inner space. The airbag 10 and the inflator 11 are It is detachably stored in the internal space of the base storage unit 24.
As shown in FIG. 4, the base storage portion 24 includes a rear wall portion 24a disposed on the vehicle body rear side of the airbag 10 and the inflator 11, and a vehicle body front portion continuously from both ends of the rear wall portion 24a in the vehicle body width direction. The outer wall portion 24b is disposed on the vehicle outer side in the vehicle body width direction, and the inner wall portion 24c is disposed on the vehicle inner side.
Note that an upper portion of the base storage portion 24 is formed with an opening provided so that the upper end portion of the inflator 11 is exposed.

As shown in FIG. 3, the outer wall portion 24 b of the base storage portion 24 is provided with a notch portion that can support a part of the harness 40 at a portion facing the harness connection portion 12 of the inflator 11.
As shown in FIG. 4, the inner wall portion 24 c is formed so as to protrude two at a predetermined interval in the vertical direction, and a force cloth locking groove 27 that can lock the other end portion of the force cloth 70. Are formed at a predetermined interval in the vertical direction, and are disposed between the two baffle locking grooves 27 and provided with a base hole portion 28 through which the assembly shaft portion 13 of the inflator 11 can be inserted. .

The force cloth locking groove 27 is a groove for putting the locking member 73 sewn on the other end of the force cloth 70 into a grain, and has an opening on the vehicle body rear side.
The force cloth locking groove 27 includes a bottom wall portion 27a extending from the inner side wall portion 24c of the base storage portion 24 toward the vehicle inner side in the vehicle body width direction, and a side wall extending continuously from the extending portion of the bottom wall portion 27a to the vehicle body rear side. Part 27b.
Specifically, the baffle locking groove 27 further includes an upper wall portion 27c and a lower wall portion 27d extending from the inner wall portion 24c of the base storage portion 24 to the vehicle inner side, and these bottom wall portion 27a and side wall portion 27b. The upper wall portion 27c and the lower wall portion 27d and the inner wall portion 24c of the base storage portion 24 form an internal space.
As shown in FIG. 4, a pair of reinforcing ribs extending in the front-rear direction of the vehicle body is provided on the inner surface of the wall portion of the baffle locking groove 27, and the support rigidity for the baffle 70 is ensured.

The retainer member 30 is made of a metal holding member that holds the airbag 10 and the inflator 11 from the rear side of the vehicle body, and is attached to the base storage portion 24 from the rear side of the vehicle body as shown in FIG. At the same time, the bedding locking groove 27 is arranged to be held from the rear side of the vehicle body.
The retainer member 30 is substantially U-shaped and extends continuously from the rear wall portion 30a disposed on the vehicle body rear side of the base storage portion 24 and both ends of the rear wall portion 30a in the vehicle body width direction to the vehicle body front side. The outer side wall part 30b and the inner side wall part 30c are provided.

As shown in FIG. 2, the rear wall portion 30 a extends downward from the portion that holds the base storage portion 24, and the lower extension portion is superimposed on the back surface of the base attachment portion 21 a of the base member 20. A bolt is fastened to a vehicle body member (not shown) on the rear side of the vehicle body.
The downwardly extending portion of the rear wall portion 30a has a relief shape (escape portion) that is bent so as to follow a vehicle body shape (not shown) on the rear side of the vehicle body.

As shown in FIG. 4, the inner wall portion 30 c is formed so as to protrude two at a predetermined interval in the vertical direction, and holds the force cloth locking groove 27 to which the force cloth 70 is locked. A retainer hole 33 formed between the cloth holding portion 32 and the two force cloth holding portions 32, which are formed at a predetermined interval in the vertical direction and can be inserted through the assembly shaft portion 13 of the inflator 11; Is provided.
The retainer hole 33 and the base hole 28 are arranged to communicate with each other in a state where the retainer member 30 and the base storage part 24 are assembled.

  In the above configuration, as shown in FIG. 5, the assembly shaft portion 13 of the inflator 11 is inserted through the base hole portion 28 and the retainer hole portion 33, and the insertion end portion is assembled to the assembly member 35 corresponding to the assembly nut. The inflator 11, the base member 20, and the retainer member 30 are fixed.

As shown in FIGS. 4 and 5, the force cloth holding portion 32 has a substantially L shape, and is formed by bending a part of the inner wall portion 30 c toward the vehicle interior side.
The webbing holding portion 32 covers the opening portion of the webbing locking groove 27 and the side wall portion 27b, and the webbing locking groove 27 and a locking member 73 at the other end of the webbing 70 described later. It is arranged at a position to hold.
The bedding holding portion 32 is formed with a bead corresponding to the reinforcing portion on the surface opposite to the side to which the bedding 70 is attached. Therefore, the support rigidity with respect to the bundling holding part 32 is improved. As the reinforcing portion, in addition to the bead shape, a stepped shape or the like may be adopted.

The harness 40 is a wire harness that supplies electric power for ignition to the inflator 11, and includes a plurality of electric wires combined with a corrugated tube and a coupler attached to the end.
As shown in FIG. 3, the harness 40 is a vehicle battery in which an upper end portion 41 is connected to a harness connecting portion 12 at an upper end portion of the inflator 11 and a lower end portion 42 is disposed on the lower side of a seated person on the vehicle body. It is connected and extends so as to be long in the vertical direction.

As shown in FIG. 6, the pad member 50 is made of a cushion material placed between the base member 20 and the skin material 60, and is disposed over the entire front surface of the base member 20 on the vehicle body side.
The pad member 50 is coupled to the base member 20 by being fixed to a pad mounting portion (not shown) provided on the base member 20.
More specifically, the pad member 50 is formed with a pad opening 51 penetrating in the longitudinal direction of the vehicle body at a portion facing the base storage portion 24, more specifically, at a portion facing the outer wall portion 24 b of the base storage portion 24. Has been.

The pad member 50 is integrally provided with an outer pad member 50 a disposed on the vehicle outer side than the pad opening 51 and an inner pad member 50 b disposed on the vehicle inner side than the pad opening 51.
The pad opening 51 is an opening portion that is long in the vertical direction, and a webbing 70 is inserted from the skin material 60 side toward the base member 20 side.
The pad opening 51 and the baffle locking groove 27 are located on the opposite sides of the airbag 10 in the vehicle body width direction.

In the above configuration, when the airbag 10 is inflated and deployed as shown in FIG. 9, the pad member 50 is divided into an outer pad member 50a and an inner pad member 50b with the pad opening 51 as a branch point in the vehicle body width direction. Is done.
At this time, since the bulging direction of the airbag 10 is guided by the webbing 70, the airbag 10 can be deployed without scattering a part of the pad member 50 in front of the vehicle body of the base storage portion 24. .

As shown in FIG. 6, the skin material 60 corresponds to a cover member that covers the base member 20 and the pad member 50 from the front side of the vehicle body, and is located at a substantially central portion in the vehicle body width direction and at the central portion of the base storage portion 24. In the corresponding position, a skin cleaving portion 61 that is cleaved when the airbag 10 is inflated is formed.
One end of the skin material 60 is connected at the position of the skin cleaving portion 61, an outer skin material 62 disposed on the vehicle outer side with respect to the skin cleaving portion 61, an inner skin material 63 disposed on the vehicle inner side, Consists mainly of.

The other end portion of the outer skin material 62 on the vehicle outer side is locked in the vertical direction to the locking claw 22 a of the base outer wall portion 22, and the other end portion of the inner skin material 63 on the vehicle inner side includes the grain of the base inner wall portion 23. Wood is embedded in the groove 23a.
Specifically, a locking hole for locking the locking claw 22a is formed in the other end portion of the outer skin material 62 in the vertical direction, and the other skin portion of the inner skin material 63 includes a grain. A leather trim cord is sewn into the groove 23a.

In the above configuration, when the airbag 10 is inflated and deployed as shown in FIG. 9, the skin material 60 is deployed by being divided into an outer skin material 62 and an inner skin material 63 with the skin cleaving portion 61 as a branch point.
The skin cleaving portion 61 is disposed at a position overlapping the airbag 10 in the vehicle body width direction.

The force cloth 70 is made of a cloth member that guides the inflating and deploying direction of the airbag 10 to the front side of the vehicle body.
As shown in FIG. 6, the force cloth 70 has one end 71 attached to the skin cleaving portion 61 of the skin material 60, and extends continuously from the one end 71 so as to cover the pad member 50. The other end 72 is locked to the provided force cloth locking groove 27.

Specifically, the webbing 70 continuously extends from the one end portion 71 sewn around the skin cleaving portion 61 on the inner skin material 63 side to the vehicle outer side along the front surface of the inner pad member 50b. It reaches the portion facing the opening 51.
The webbing 70 passes through the pad opening 51 and continuously extends along the vehicle outer surface and the rear surface of the inner pad member 50b, and is inserted into the insertion hole 29 provided in the inner wall portion 24c of the base storage portion 24. Has reached.
The force cloth 70 passes through the insertion hole 29 and continuously extends to the force cloth locking groove 27 and is locked to the force cloth locking groove 27.
At this time, the other end portion 72 of the force cloth 70 has an engaging member 73 for entering the grain in the force cloth engaging groove 27 and a force cloth extending portion extending to the other end side from the engaging member 73. 74 is provided.

  The locking member 73 is a leather trim cord having a substantially rectangular plate shape, and is sewn to the other end portion 72 of the force cloth 70 as shown in FIGS. The first locking member 73a to be grained and the second locking member 70 is sewn to the other end side of the force cloth 70, and is disposed between the force cloth locking groove 27 and the insertion hole 29 in the extending direction of the force cloth 70. 2 locking members 73b.

As shown in FIG. 7, the first locking member 73 a is grained into the force cloth locking groove 27 so as to partially protrude from the force cloth locking groove 27, and the protruding portion is on the rear side of the vehicle body. It extends toward the retainer member 30.
More specifically, the first locking member 73a is in a state in which the first locking member 73a is engraved in the baffle locking groove 27, and one end in the graining direction contacts the bottom wall portion 27a of the baffle locking groove 27 via the bundling 70. It is arranged to touch. Further, the overhanging portion that is the other end in the graining direction is disposed so as to abut on the webbing holding portion 32 of the retainer member 30.
Further, the first locking member 73 a is engraved so as to be wrapped in the webbing 70 in the internal space of the webbing locking groove 27.
Therefore, the attachment strength of the webbing 70 is improved, and the guideability of the webbing 70 that guides the bulging and deploying direction of the airbag 10 is improved.

The thickness of the first locking member 73 a is smaller than the opening width of the insertion hole 29. Further, the width of the first locking member 73a in the longitudinal direction is smaller than the opening length of the insertion hole 29 in the width direction of the webbing 70 (the width direction orthogonal to the extending direction of the webbing 70).
Therefore, the first locking member 73a can be inserted into the insertion hole 29 relatively easily when the force cloth 70 is inserted through the insertion hole 29.

As shown in FIG. 7, the second locking member 73 b is disposed on the vehicle body rear side of the insertion hole 29. More specifically, the second locking member 73 b is sandwiched between the periphery of the insertion hole 29 and the retainer member 30 in the longitudinal direction of the vehicle body. And it arrange | positions so that it may be pinched | interposed between the side wall part 27b and the retainer member 30 of the bedding locking groove 27 in the vehicle body width direction.
Therefore, the attachment strength of the webbing 70 is improved, and the guideability of the webbing 70 is improved.

The thickness of the second locking member 73 b is smaller than the opening width of the insertion hole 29. On the other hand, the width in the longitudinal direction of the second locking member 73 b is larger than the opening length of the insertion hole 29 in the width direction of the webbing 70.
That is, when the force cloth 70 is assembled, the second locking member 73 b is supported in a state of being caught around the insertion hole 29 without being relatively easily removed from the insertion hole 29.
When the second locking member 73b is inserted through the insertion hole 29, the second locking member 73b may be inserted with the second locking member 73b slightly inclined with respect to the extending direction of the webbing 70.

The force cloth extending portion 74 is a cloth member continuously extending from the other end portion 72 of the force cloth 70, and becomes narrower than the other end portion 72 of the force cloth 70, as shown in FIG. Are integrally formed.
More specifically, the tip 74a of the bundling extension portion 74 is formed in a substantially semicircular shape (semi-elliptical shape) so as to become gradually narrower along the extending direction.
Therefore, when the operator pulls the other end portion 72 of the force cloth 70 to be inserted into the insertion hole 29 from the front side of the vehicle body, the operator extends the force cloth extension portion 74 first through the insertion hole 29 and pulls it from the rear side of the vehicle body. Thus, the assembling work of the bundling 70 is improved.

The thickness of the force extending portion 74 is smaller than the opening width of the insertion hole 29, and the width of the force extending portion 74 is smaller than the opening length of the insertion hole 29.
The total length of the force extending portion 74 in the extending direction is larger than the depth of the insertion hole 29 in the hole direction.
Therefore, it becomes easier for the operator to insert the force-applying extension portion 74 first through the insertion hole 29 from the front side of the vehicle body and pull it from the rear side of the vehicle body. As a result, the assembling work of the bundling 70 is remarkably improved.

In the above configuration, when the airbag 10 is inflated and deployed as shown in FIG. 9, the webbing 70 guides the direction of inflation of the airbag 10 toward the skin cleaving portion 61 side of the skin material 60.
Further, the one end 71 side of the force cloth 70 is deployed on the front side in the vehicle longitudinal direction together with the inner pad member 50b and the inner skin material 63, and is deployed on the vehicle inner side in the vehicle width direction.

Further, in the above configuration, when the airbag 10 is inflated and deployed, the second locking member 73b sewn on the other end side of the webbing 70 is supported in a state of being hooked around the insertion hole 29.
Therefore, it can suppress that the 1st latching member 73a slips out from the bedding latching groove 27, the attachment of the bedding 70 is stabilized, and the expansion | deployment direction of the airbag 10 is stabilized.

  In the above configuration, when the airbag 10 is inflated and deployed, the force cloth extending portion 74 on the other end side of the force cloth 70 is sandwiched and supported between the base storage portion 24 and the retainer member 30. Therefore, it is possible to further stabilize the attachment of the bundling 70.

<Second Embodiment of Side Airbag Device>
Next, a second embodiment of the side airbag device S will be described with reference to FIG.
In addition, the description which overlaps with the side airbag apparatus S mentioned above is abbreviate | omitted.
In the side airbag device S according to the second embodiment, in the base storage portion 124, the assembly shaft portion 13 of the inflator 11 is assembled on the outer wall portion 124b side, while the other end portion 72 of the baffle 70 is on the inner side. The structure locked in the force cloth locking groove 127 on the wall 124c side is different.
Further, the base hole portion 128 provided in the outer wall portion 124b and the bedding locking groove 127 provided in the inner wall portion 124c are arranged at positions that do not overlap in the vertical direction.
A retainer member 130 for holding the airbag 10 and the inflator 11 from the rear side of the vehicle body is mounted on the back surface of the base storage portion 124.

With the above configuration, in the base storage portion 124, the base hole portion 128 into which the inflator 11 is assembled and the force cloth locking groove 127 to which the force cloth 70 is locked are formed in different wall portions, so that they interfere with each other. Suppressing and compact arrangement.
Further, since the assembly shaft portion 13 of the inflator 11 is disposed at a position outside the vehicle with respect to the inflator 11 and becomes a position where it is relatively easy to secure a space, space saving and efficiency of assembling the bundling 70 are achieved. Can be realized.

<Other embodiments>
In the above embodiment, as shown in FIG. 4, the baffle locking groove 27 is formed as a groove for placing the locking member 73 at the other end of the buffing cloth 70, but is limited to the groove. Instead, as long as the locking member 73 of the webbing 70 can be locked, a penetrating locking hole, a locking claw, or a locking projection may be used.

Moreover, in the said embodiment, as shown in FIG. 6, although the baffle latching groove 27 is provided in the inner wall part 24c in the base storage part 24, it is provided in the outer wall part 24b and the rear wall part 24a. Alternatively, it may be provided at a predetermined position on the base member 20.
However, it is preferable that the baffle locking groove 27 is formed on the vehicle interior side in the vehicle body width direction in the base storage portion 24 rather than the airbag 10 and the inflator 11.
This is because the airbag 10 can be more stably inflated and deployed to the front side of the vehicle body by the force cloth 70.
As a reason, in the vehicle body width direction of the base storage portion 24 for storing the airbag 10, the outer wall portion 24b side is supported by the relatively rigid vehicle body door 2a, while the inner wall portion 24c side is compared. It is supported by the rear seat 1 having high elastic elasticity. Then, the bulging and deploying direction of the airbag 10 tends to be drawn toward the rear seat 1 side having high elasticity in the vehicle body width direction.
Therefore, if the bedding locking groove 27 is provided on the inner wall portion 24c side and the inner wall portion 24c side is preferentially guided by the bedding 70, the bulging and deploying direction of the airbag 10 is stabilized.

Moreover, in the said embodiment, as shown in FIG. 4, although the assembly | attachment axial part 13 of the inflator 11 is assembled | attached to the inner wall part 24c in the base storage part 24, it is not limited to this, The outer wall part 24b Or may be assembled to the rear wall 24a.
However, preferably, the assembly shaft portion 13 is preferably assembled to the inner wall portion 24c side of the base storage portion 24 in the vehicle body width direction.
This is because the support rigidity on the inner wall portion 24c side of the base storage portion 24 is improved, so that the inflation and deployment direction of the airbag 10 is stabilized as described above.

  Moreover, in the said embodiment, although the power cloth 70 is formed from the cloth material, it can employ | adopt as a guide member well-known materials with comparatively high elasticity, such as a leather material and a resin material besides a cloth material.

  In the above embodiment, the locking member 73 is formed as a leather trim cord. However, the locking member 73 may be made of resin, or a known member may be used as long as it can be textured into the baffle locking groove 27. Is possible.

Moreover, in the said embodiment, as shown in FIG. 6, FIG. 7, the 1st latching member 73a is put in the cloth cloth latching groove 27 at the time of the normal state before the airbag 10 inflates and expands. However, the retainer member 30 may be disposed at a predetermined interval from the retainer member 30.
For example, the gas pressure is applied as the airbag 10 is inflated and deployed, and the first locking member 73a is disposed so as to come into contact with the retainer member 30 when moving in the direction of coming out of the forceps locking groove 27. Anyway.

Moreover, in the said embodiment, as shown in FIG. 8, although the width | variety of the elongate direction of the 2nd locking member 73b is larger than the opening length of the insertion hole 29, it does not necessarily need to be wide. .
Regardless of the shape, as long as the second locking member 73b is disposed between the force cloth locking groove 27 and the insertion hole 29 in the extending direction of the power cloth, the assembling work of the power cloth is compared with the conventional case. Becomes easier.

Moreover, in the said embodiment, as shown in FIG. 8, the width | variety of the elongate direction of the 1st latching member 73a and the 2nd latching member 73b becomes wider than the width | variety of the other end part 72 of the force cloth 70, respectively. In addition, although the width in the longitudinal direction of the first locking member 73a is narrower than the width of the second locking member 73b, the width is not limited to this and can be changed as appropriate.
For example, as shown in FIG. 11, the width in the longitudinal direction of the first locking member 73a and the second locking member 73b may be substantially the same.
And as shown to Fig.11 (a), the width | variety of the short direction (extension direction of a bedding) of the 1st locking member 73a and the 2nd locking member 73b may be substantially the same. As shown in FIGS. 11B and 11C, the first locking member 73a may be narrower in the shorter direction than the second locking member 73b, or may be wider.

For example, as shown in FIG. 12, the first locking member 73a is wider in the longitudinal direction than the second locking member 73b, and the width in the longitudinal direction of the second locking member 73b is a force. The width of the other end portion 72 of the cloth 70 may be substantially the same.
And as shown to Fig.12 (a), the width | variety of the short length direction of the 1st locking member 73a and the 2nd locking member 73b may be substantially the same, and it is like FIG.12 (b), (c). As shown, the first locking member 73a may be narrower or wider in the short direction than the second locking member 73b.

Further, for example, as shown in FIG. 13, the first locking member 73a is narrower in the longitudinal direction than the second locking member 73b, and the first locking member 73a has a width in the longitudinal direction. It may be substantially the same as the width of the other end portion 72 of the force cloth 70.
And as shown to Fig.13 (a), the width | variety of the short direction of the 1st locking member 73a and the 2nd locking member 73b may be substantially the same, and it is like FIG.13 (b), (c). As shown, the first locking member 73a may be narrower or wider in the short direction than the second locking member 73b.

  Moreover, in the said embodiment, as shown in FIG. 8, although the bundling extension part 74 consists of the cloth member integrally provided in the other end part 72 of the bundling 70, it is not limited to this, leather A known material having relatively high elasticity such as a material or a resin material may be attached separately.

  In the above embodiment, the side airbag device S used for the rear seat of the automobile has been described as a specific example. However, the present invention is not limited thereto, and may be used for the front seat of the automobile, train, bus, etc. It may be used as a vehicle seat, or may be used as a vehicle seat for airplanes, ships, and the like.

In the present embodiment, the side airbag device S according to the present invention has been mainly described.
However, said embodiment is only an example for making an understanding of this invention easy, and does not limit this invention. The present invention can be changed and improved without departing from the gist thereof, and the present invention includes the equivalents thereof.
In particular, the arrangement and configuration of the baffle locking groove 27, the buff 70, the locking member 73, and the baffle extension portion 74, which are constituent elements of the side airbag device S, are described in the above embodiment. However, this is only an example and does not limit the present invention.

S Side airbag device 1 Rear seat 1a Seat back 2 Car body 2a Car body door 10 Air bag 11 Inflator 12 Harness connecting part 13 Assembly shaft part 20 Base member 21 Base body part 21a Base attaching part 22 Base outer wall part 22a Locking claw 23 Base Inner wall part 23a Grain groove 24, 124 Base storage part 24a Rear wall part 24b, 124b Outer side wall part 24c, 124c Inner side wall part 27, 127 Baffle locking groove 27a Bottom wall part 27b Side wall part 27c Upper wall part 27d Lower wall part 28, 128 Base hole portion 29 Insertion hole 30, 130 Retainer member 30a Rear wall portion 30b Outer wall portion 30c Inner wall portion 32 Baffle holding portion 33 Retainer hole portion 35 Assembly member 40 Harness 41 Upper end portion 42 Lower end portion 50 Pad member 50a Outer pad member 50b Inner pad member DESCRIPTION OF SYMBOLS 1 Pad opening part 60 Skin material 61 Skin cleaving part 62 Outer skin material 63 Inner skin material 70 Force cloth 71 One end part 72 Other end part 73 Locking member 73a 1st locking member 73b 2nd locking member 74 Force cloth extension Part 74a Tip

Claims (8)

A side airbag device provided between a vehicle body and a rear seat,
An inflatable airbag,
An inflator for supplying gas into the airbag;
A base member for storing the airbag and the inflator in a folded state, the base member being attached between a vehicle body door and the rear seat;
A cover member that covers the base member from the front side of the vehicle body;
One end side is attached to the cover member, and the other end side is locked to a baffle locking portion provided on the base member, and includes a baffle that guides the inflation and deployment direction of the airbag,
On the other end side of the webbing, there are a latching member latched by the webbing latching part, and a webbing extension part extending to the other end side than the latching member. A side airbag device characterized by being provided. The force cloth locking portion is a force cloth locking groove for embedding the locking member,
The baffle extends continuously from one end portion attached to the cover member, passes through an insertion hole provided in the base member, and the other end portion is on the vehicle body rear side of the base member. The side airbag device according to claim 1, wherein the side airbag device is formed in a locking groove.   The side airbag device according to claim 2, wherein the force extending portion is formed to be thinner than the locking member.   The side airbag device according to claim 2 or 3, wherein the bundling extension portion is formed to be narrower than at least one of the bundling and the locking member.   The locking member includes a first locking member that is grained into the force cloth locking groove at the other end of the force cloth, and the force cloth locking groove and the insertion in the extending direction of the power cloth. The side airbag device according to any one of claims 2 to 4, wherein the side airbag device comprises at least a second locking member disposed between the holes.   The side airbag device according to claim 5, wherein the second locking member is disposed so as to be wide with respect to the opening of the insertion hole in a state in which the baffle is assembled. .   7. The side air according to claim 5, wherein the first locking member is disposed so as to be wide with respect to the opening of the insertion hole in a state where the force cloth is assembled. Bag device. A retainer member that covers the base storage portion and the baffle locking groove from the vehicle rear side;
2. The locking member according to claim 1, wherein a part of the locking member protrudes from the baffle locking groove and is wooded into the baffle locking groove, and the protruding portion extends toward the retainer member. The side airbag device according to any one of 2 to 7.

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