JP7280801B2 - side airbag device - Google Patents

Description

The present invention relates to a side airbag device.

Conventionally, as a side airbag device, an airbag module is arranged between a seat back of a seat and a vehicle body and includes an airbag and an inflator that supplies gas to the airbag, and an airbag module is accommodated. A case is known (see Patent Document 1).

JP 2017-052493 A

By the way, when the side airbag device arranged between the seat and the vehicle body is fixed to the vehicle body, for example, when the seat back is tilted forward, the inner surface of the side airbag device facing the inside of the vehicle body enters the vehicle interior. will be exposed. Therefore, it is desirable that the inner surface of the side airbag device has a good appearance.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a side airbag device capable of improving the appearance of the inner surface.
Another object of the present invention is to facilitate the installation work of the side airbag device.
Another object of the present invention is to firmly fix the side airbag device to the vehicle body.
Another object is to protect the airbag module.
Another object of the present invention is to improve the appearance of the side airbag device before it is attached to the vehicle body.

In order to achieve the above object, a side airbag device is disposed between a seat and a vehicle body, and is a side airbag device in which an inner surface, which is a surface on the side of the seat, is exposed when the seat is moved, An airbag module having an airbag and an inflator that supplies gas to the airbag; and a case that houses the airbag module. and a skin member covering the base member and the pad, wherein the skin member covers the base member and the pad from the seat side to form a part of at least one of the base member and the pad. and a base fixing portion extending from the first cover portion and fixed to the base member; and a first cover portion covering the first cover portion to form the inner surface. A second skin member including two cover portions, and fasteners provided on the first skin member and the second skin member for fastening the second cover portion to the first skin member. .

According to such a configuration, the second cover part can cover the first cover part and the portions of the base member and the pad exposed from the first cover part. In addition, since the first skin member has the first cover portion, by fixing the base fixing portion of the first skin member to the base member, even if the fastener provided on the first skin member is pulled, the position thereof is displaced. can be suppressed, and displacement of the second cover portion can be suppressed when the fastener is used to fasten the second cover portion and the first skin member. As a result, the appearance of the inner surface of the side airbag device can be improved.

In the side airbag device described above, the first cover portion has a first hole through which the striker provided on the vehicle body is inserted, and the second cover portion has a second hole through which the striker is inserted. The striker has a U-shape having a pair of first rod-shaped portions protruding from the vehicle body and a second rod-shaped portion connecting the tips of the pair of first rod-shaped portions to each other, and Between a pair of insertion holes attached to a portion of the first cover portion surrounding the first hole, through which the pair of first rod-shaped portions are inserted, and the pair of insertion holes through which the second rod-shaped portions are inserted and a plate member having a slit provided to connect the pair of insertion holes.

According to this, the gap between the pair of first rod-shaped portions of the striker can be covered and hidden by the plate member, so that the appearance of the inner surface of the side airbag device can be improved.

The side airbag device described above includes a cloth-like member attached to a portion surrounding the second hole of the second cover portion and covering a portion between the pair of insertion holes of the plate member. can be done.

According to this, the gap of the plate member can be covered and hidden by the cloth-like member, so that the appearance of the inner surface of the side airbag device can be further improved.

In the side airbag device described above, the base member may have a vehicle body fixing portion that is fixed to the vehicle body, and the first cover portion may have an opening that exposes the vehicle body fixing portion.

According to this, since the side airbag device can be attached to the vehicle body from the seat side, the side airbag device can be easily attached.

In the above-described side airbag device, the vehicle body fixing portion includes a first vehicle body fixing portion and a second vehicle body fixing portion arranged below the first vehicle body fixing portion, and the opening includes the first vehicle body fixing portion. The structure may include a first opening for exposing the vehicle body fixing portion and a second opening for exposing the second vehicle body fixing portion.

According to this, the side airbag device can be firmly fixed to the vehicle body by the plurality of vehicle body fixing portions while facilitating the mounting work of the side airbag device.

In the above-described side airbag device, the pad has a ridge portion that protrudes toward the seat, and the first cover portion has a slit hole formed along the ridge portion. be able to.

According to this, it is possible to suppress unnecessary force from being applied to the vicinity of the ridge portion of the pad from the first cover portion covering the pad, so that deformation of the pad can be suppressed and the shape of the pad can be neatly formed. can be done. This makes it possible to improve the appearance of the inner surface of the side airbag device.

In the above-described side airbag device, the fastener may be arranged along an end of the inner surface opposite to the side on which the airbag deploys.

According to this, after the side airbag device is attached to the vehicle body, the second cover portion can be fastened to the first skin member with the fastener, so that the side airbag device can be easily mounted, and the side airbag device can be easily mounted. can improve the appearance of the inner surface of the

In the above-described side airbag device, the skin member extends from a third cover portion covering the vehicle body side of the airbag module and from an end portion of the first cover portion opposite to the side on which the airbag deploys. and a fourth cover portion disposed on the opposite side of the airbag module to the side where the airbag deploys and connected to the third cover portion.

According to this, the airbag module can be protected by the third cover portion. Moreover, by covering the airbag module with the third cover portion, the appearance of the side airbag device before being attached to the vehicle body can be improved.

In the side airbag device described above, the fastener may be a line fastener.

According to the present invention, it is possible to improve the appearance of the inner surface of the side airbag device.

Further, by attaching the plate member to the portion around the first hole of the first cover portion, the appearance of the inner surface of the side airbag device can be improved.

In addition, by attaching a cloth-like member to the portion around the second hole of the second cover portion, it is possible to further improve the appearance of the inner surface of the side airbag device.

Further, by providing an opening for exposing the fixing portion of the base member to the vehicle body in the first cover portion, it is possible to facilitate the mounting work of the side airbag device.

Further, the vehicle body fixing part includes the first vehicle body fixing part and the second vehicle body fixing part, and the opening includes the first opening and the second opening. The device can be firmly fixed to the vehicle body.

Also, by forming slit holes along the ridgeline of the pad in the first cover portion, the appearance of the inner surface of the side airbag device can be improved.

In addition, by arranging the fastener along the end of the inner surface opposite to the airbag deployment side, it is possible to facilitate the installation work of the side airbag device, and the inner side of the side airbag device. You can make the sides look better.

Further, by providing the third cover portion and the fourth cover portion on the skin member, the airbag module can be protected and the appearance of the side airbag device before being attached to the vehicle body can be improved.

It is the figure which looked at the vehicle provided with the side airbag apparatus from the vehicle interior. It is the figure (a) which looked at the side panel of the vehicle body from the vehicle interior inside, and the figure (b) which looked at the striker and the base bracket from the top. 1 is an exploded perspective view of a side airbag device; FIG. It is the figure which looked at the airbag module, the 1st bracket, and the base member from the right-and-left outside. FIG. 4A is a lateral cross-sectional view of the side airbag device passing through the first webbing portion, and FIG. FIG. 4 is a cross-sectional view of the side airbag device passing through a second webbing portion; Fig. 2 is a perspective view of a first attachment wire, a second attachment wire and a fixed wire; It is the figure which looked at the side airbag device from the right-and-left outside. FIG. 4 is a rear view of the airbag module, first bracket, second bracket, harness and connector; It is the figure which looked at the 1st bracket, the 2nd bracket, harness, and a connector from the top. It is a perspective view of a side airbag device, the figure (a) which shows the state which closed the wire fastener, and the figure (b) which shows the state before closing a wire fastener. FIG. 3 is a perspective view of a striker, first skin member, plate member, second skin member, and cloth-like member; FIG. 2 is an exploded perspective view of the side airbag device as viewed from the left and right outer sides; It is a figure explaining the process of fixing a 1st bracket to a 2nd bracket. It is a longitudinal cross-sectional view of a pad and a 1st cover part which passes through a slit hole.

Next, an embodiment of the invention will be described in detail with reference to the drawings as appropriate.
As shown in FIG. 1, the side airbag device 1 of this embodiment is applied to a rear seat of an automobile, and is arranged between a seat S and a side wall BS of the vehicle body. Specifically, the seat S has a seat cushion S1 and a seat back S2, and the side airbag device 1 is arranged between the seat back S2 and the side wall BS.

The seat back S2 is provided so as to be rotatable forward and backward about its lower end portion so that it can be tilted forward. On the other hand, the side airbag device 1 is fixed to the side wall BS of the vehicle body, and is not fixed to the seatback S2. Therefore, when the seat S is moved, specifically, when the seat back S2 is tilted forward, the side airbag device 1 is exposed while remaining on the side wall BS. In the side airbag device 1, when the seat back S2 is tilted forward, the inner surface 1S (see FIG. 11A), which is the surface on the side of the seat S, is exposed. When the seatback S2 is in the upright state shown in FIG. 1, the front surface of the side airbag device 1 is substantially flush with the front surface of the seatback S2. Therefore, when the seat S is normally used, the side airbag device 1 looks like a part of the seat back S2.

In this embodiment, the side airbag device 1 arranged on the left side of the vehicle body (the left side of the seat S) will be described, but a side airbag device having a bilaterally symmetrical configuration may also be provided on the right side of the vehicle body. can. In this embodiment, unless otherwise specified, the inner side and the outer side in the left-right direction are based on the vehicle body, not the side airbag device 1 itself. That is, the side closer to the lateral center of the vehicle body is the inner side, and the side farther from the lateral center of the vehicle body is the outer side. When viewed from the side airbag device 1, the left and right inner sides correspond to the "seat S side", and the left and right outer sides correspond to the "vehicle body side". In addition, front and rear and up and down are based on the seat S unless otherwise specified.

In the side airbag device 1 shown in FIG. 1, a tearing portion 1C is vertically elongated on the front surface to be torn and spread when the airbag 11 (see FIG. 5A) is deployed.

As shown in FIG. 2( a ), the vehicle body has side panels 300 . The side panel 300 is made of metal and has a side wall portion 310 forming a side wall BS, a wheel house 320 projecting left and right inward from the side wall portion 310, and a striker mounting portion 330. As shown in FIG.

The wheel house 320 is a part in which the tire T is accommodated. An airbag mounting bracket 340 is fixed by welding or the like at a position corresponding to the upper portion of the tire T of the wheel house 320 . The airbag mounting bracket 340 is a member for mounting the side airbag device 1 to the vehicle body, and is made of a metal plate. As shown in FIG. 3, the airbag mounting bracket 340 has holes 341 through which bolts 93B for fixing the side airbag device 1 are inserted. Nuts 93N are welded to the left and right outer surfaces of the airbag mounting bracket 340 .

Returning to FIG. 2A, the striker mounting portion 330 is a portion that secures a mounting surface for the striker 350, and is fixed to the upper portion of the side panel 300 by welding or the like. As shown in FIG. 2B, the striker 350 is a U-shaped member that protrudes left and right inward from the side panel 300 of the vehicle body, and is made of metal. Specifically, the striker 350 has a pair of first rod-shaped portions 351 provided so as to protrude from the side panel 300, and a second rod-shaped portion 352 connecting the tips of the pair of first rod-shaped portions 351 to each other. ing. The seat back S2 of the seat S has a latch mechanism (not shown) that can be engaged with the striker 350. When the seat back S2 is raised from the forward tilted state and the latch mechanism engages with the striker 350, the seat back S2 is locked in the upright state. be done.

The striker 350 is fixed to the striker mounting portion 330 of the vehicle body via a base bracket 360 . The base bracket 360 is made of a metal plate, and includes a base portion 361 attached to the striker installation portion 330 , a connection portion 362 extending left and right from the upper end of the base portion 361 , and an air bracket extending upward from the left and right inner ends of the connection portion 362 . and a bag fixing portion 363 . A bolt 92B is fixed to the airbag fixing portion 363 by welding so as to protrude inward in the left and right directions. The striker 350 is fixed to the base portion 361 by welding or the like. Base bracket 360 is secured to striker mounting portion 330 by a plurality of bolts 364 .

As shown in FIG. 3 , the side airbag device 1 includes an airbag module 10 , a case 2 , a webbing 30 and a first bracket 100 .

The airbag module 10 has an airbag 11 and an inflator 12 that supplies gas into the airbag 11 . The inflator 12 has two projecting bolts 12B and is fixed to the first bracket 100 at the bolts 12B. The airbag 11 is folded around the inflator 12 so that it can be deployed by the gas pressure of the inflator 12 .

The case 2 accommodates the airbag module 10 by attaching the airbag module 10 therein. The case 2 includes a base member BA, a pad 70 (see FIG. 5(a)) covering the base member BA, and a skin member 80 (see FIG. 5(a)) covering the base member BA and the pad 70. .

The base member BA is a member fixed to the vehicle body, and includes a second bracket 200 and a wire frame 20. As shown in FIG.
The second bracket 200 constitutes the framework of the case 2 together with the wire frame 20 . The second bracket 200 is a plate-shaped member to which the first bracket 100 is attached, and is made of sheet metal. The second bracket 200 has a body portion 210 , a notch portion 220 , a first extension portion 230 and a second extension portion 240 .

The body portion 210 is arranged from the center to the upper portion of the wall inside the vehicle body of the case 2 . The notch portion 220 is formed at the rear edge of the upper portion of the body portion 210 . The notch 220 is a portion through which the striker 350 passes.

A first vehicle body fixing portion 210A as a vehicle body fixing portion fixed to the vehicle body is provided in a portion of the main body portion 210 above the notch portion 220 . A fixing hole 211 used when fixing the side airbag device 1 to the vehicle body is formed in the first vehicle body fixing portion 210A. A bracket fixing portion 212 used when fixing the first bracket 100 is provided in a portion of the body portion 210 below the notch portion 220 . The bracket fixing portion 212 has a hole 218 (see FIGS. 13 and 14) formed in the body portion 210, and a nut 91N is welded to the right side surface.

An engaging hole 213 is formed in the body portion 210 . The engagement hole 213 has a first edge portion 213A extending substantially vertically on its rear side, and a second edge portion 213B extending substantially horizontally on its lower side.

A trapezoidal protruding joint 214 is formed at the front edge of the main body 210 , and two trapezoidal protruding joints 215 are formed at the upper edge of the main body 210 .

The first extending portion 230 extends downward from the rear portion of the lower end of the body portion 210 . The first extending portion 230 has an inclined portion 231 extending obliquely downward from the lower end of the main body portion 210 to the left and right outer sides, and a second vehicle body fixing portion 232 extending downward from the lower end of the inclined portion 231 as a vehicle body fixing portion. ing. The second vehicle body fixing portion 232 is located laterally outside of the main body portion 210 . The second vehicle body fixing portion 232 is arranged below the first vehicle body fixing portion 210A. The second vehicle body fixing portion 232 has a fixing hole 233 used when fixing the side airbag device 1 to the vehicle body and an engagement hole 234 used when fixing the first bracket 100 to the second bracket 200. formed. The fixing hole 233 is a circular hole through which the bolt 93B passes, and the engaging hole 234 is a rectangular hole with which the tongue portion 152 at the lower end of the first bracket 100 is engaged. The engaging hole 234 is arranged below the fixing hole 233 .

The second extending portion 240 extends downward from the front portion of the lower end of the body portion 210 . The second extension portion 240 has an extension portion 241 extending downward from the lower end of the main body portion 210 and a bracket lower end portion 242 extending left and right outward from the lower end of the extension portion 241 .

The wire frame 20 is made of metal wires (metal bars). The wire frame 20 is fixed to the second bracket 200 by welding or the like. In addition, in the figure, a joint portion by welding is indicated by dot hatching.
The wire frame 20 has a first wire 21, a second wire 22, a third wire 23, and a fourth wire 24, and is constructed by joining these four wires 21 to 24 by welding. there is In this embodiment, the wire frame 20 is made up of four wires 21 to 24, but the number of wires that make up the wire frame 20 is arbitrary.

The first wire 21 defines the external shape of the case 2 together with the third wire 23 . The first wire 21 has a frame portion 21A formed along the left and right outer contours of the front and upper portions of the side airbag device 1, and a connection portion 21B extending rearward from the lower end of the frame portion 21A. . The frame portion 21A includes a front frame portion 21D as a first extending portion that extends substantially vertically along the longitudinal direction of the inflator 12, and an upper frame portion that bends rearward from the upper end of the front frame portion 21D and extends substantially forward and backward. 21E. The connection portion 21B is joined to the bracket lower end portion 242 of the second bracket 200 .

The third wire 23 includes a frame portion 23A formed along the left and right inner contours of the front and upper portions of the side airbag device 1, a connecting portion 23B extending left and right from the upper end of the frame portion 23A, and the frame portion 23A. and a connecting portion 23C extending rearward from the lower end of the . Left and right outer ends of the connecting portion 23B bend and extend forward, and the forwardly extending portion is joined to the upper end portion of the frame portion 21A of the first wire 21 . The connecting portion 23C is joined to the second bracket 200. As shown in FIG. Also, the frame portion 23A is joined to the tip end portions of the joint portions 214 and 215 of the second bracket 200 .

The fourth wire 24 has one end joined to the frame portion 21A of the first wire 21 and the other end joined to the frame portion 23A of the third wire 23, thereby connecting the first wire 21 and the third wire 23. ing.

The second wire 22 has an extending portion 22A, a connecting portion 22B extending left and right from the upper end of the extending portion 22A, and a connecting portion 22C extending rearward from the left and right inner ends of the connecting portion 22B. As shown in FIG. 4, the extension portion 22A includes a front extension portion 22D as a second extension portion that extends substantially vertically along the front frame portion 21D of the first wire 21, and a front extension portion 22D. It has an upper extending portion 22E that bends rearward from the upper end and extends substantially back and forth along the upper frame portion 21E. In addition, the extension portion 22A has a plurality of skin attachment portions 22F and bent convex portions 22G.

The skin attachment portion 22F is a portion that can be engaged with a hook 81 provided on the skin member 80 (see FIG. 5(a)). There are places.
The bent convex portion 22G is a portion that is bent so as to protrude forward, and is formed above the front extending portion 22D. The bent convex portion 22G is located between two adjacent skin attachment portions 22F of the front extension portion 22D, specifically, the skin attachment portion 22F located at the uppermost position of the front extension portion 22D and the lower adjacent portion thereof. It is formed between the upholstery attachment portion 22F and the outer skin attachment portion 22F positioned at the same position.

The second wire 22 has a connection portion 22C joined to the left and right outer surfaces of the second bracket 200, and a lower end portion of the extension portion 22A joined to a lower end portion of the frame portion 21A of the first wire 21. As shown in FIG. Also, the second wire 22 is joined to the front frame portion 21D of the first wire 21 at the bent convex portion 22G. As a result, the second wire 22 is fixed to the first wire 21 at one point between two adjacent skin attachment portions 22F.

The extending portion 22A of the second wire 22 is arranged along the frame portion 21A of the first wire 21 . Specifically, the second wire 22 is arranged so that the front extending portion 22D is behind the front frame portion 21D and along the front frame portion 21D when viewed in the left-right direction, and the upward extending portion 22E is disposed along the upper frame portion 21E. , along the upper frame portion 21E.

Further, as shown in FIG. 5A, the front extending portion 22D is arranged at a position closer to the inner side in the left-right direction of the case 2 than the front frame portion 21D when viewed from the front side (the second wire 22 center line C1). The left and right outer portions of the front extending portion 22D are arranged so as to overlap the left and right inner portions of the front frame portion 21D in the front-rear direction as viewed from the front side. In addition, the upper extending portion 22E (see FIG. 4) extends obliquely so as to be positioned inward in the left and right direction as it goes rearward, and the entirety of the upward extending portion 22E is closer to the inner side in the left and right direction of the case 2 than the front frame portion 21D. are placed in By arranging the front extending portion 22D and the upper extending portion 22E in this manner, each skin attaching portion 22F provided on the extending portion 22A is located inside (inside) the case 2 from the front frame portion 21D of the first wire 21. ), and more specifically, they are arranged at positions closer to the left and right inner sides of the case 2 .

The case 2 has the wire frame 20 and the second bracket 200 insert-molded on the pad 70 . Pad 70 thus covers wire frame 20 and second bracket 200 . A skin member 80 covers the outside of the pad 70 .
The skin member 80 is a member that constitutes the outer surface of the side airbag device 1, and is made of cloth, leather, or the like. The skin member 80 mainly covers the second bracket 200, the wire frame 20, and the pad 70 from the front side, the upper side, and the left and right inner sides. Details of the skin member 80 will be described later.

The pad 70 has a slit 71A for letting the airbag 11 out of the case 2 when the airbag 11 is deployed. The slit 71A extends vertically. The skin member 80 enters the slit 71A of the pad 70 and is arranged along the surface of the pad 70 . As shown in FIG. 5(b), the two parts of the outer skin member 80 that have entered the slit 71A are sewn together by a weak sewn portion 85. As shown in FIG.

As shown in FIG. 3, the webbing 30 is a member for regulating the deployment direction of the airbag 11 when the airbag 11 is deployed and for opening the torn portion 1C. The webbing 30 includes a first webbing portion 31 provided corresponding to a part of the airbag module 10 in the longitudinal direction of the inflator 12 (hereinafter simply referred to as “longitudinal direction”), and a first webbing portion 31 provided corresponding to a part of the airbag module 10 in the longitudinal direction. It has a first webbing portion 31 and a second webbing portion 32 arranged at a different position. In the present embodiment, the second webbing portion 32 is entirely arranged at a different position from the first webbing portion 31 in the longitudinal direction. The inflator 12 extends substantially vertically, and the second webbing portion 32 is positioned below the first webbing portion 31 . In addition, the second webbing portion 32 is shorter than the first webbing portion 31 in the longitudinal direction.

The front end portions of the first webbing portion 31 and the second webbing portion 32 are divided into left and right portions, and an exit portion 30A from which the airbag 11 exits when the airbag 11 is deployed is provided between the left and right portions. The first webbing portion 31 includes a first side portion 31R extending from the exit portion 30A toward the right side portion (one side portion) of the airbag module 10, and a left side portion (the other side portion) of the airbag module 10 extending from the exit portion 30A. ) and a second side portion 31L extending toward. The second webbing portion 32 also includes a third side portion 32R extending from the outlet portion 30A toward the right side (one side) of the airbag module 10, and a left side (other side) of the airbag module 10 from the outlet 30A. and a fourth side portion 32L extending toward the side portion).
Then, as shown in FIG. 5(b), the front ends of the first webbing portions 31 (31R, 31L) and the second webbing portions 32 (32R, 32L) are located near the exit portion 30A. attached to the Specifically, the first side portion 31R of the first webbing portion 31 and the third side portion 32R of the second webbing portion 32 are attached to the right skin member 80 by the sewing portion 86, which is stronger than the sewing portion 85. The second side portion 31L of the first webbing portion 31 and the fourth side portion 32L of the second webbing portion 32 are sewn to the left skin member 80 by a sewing portion 86 that is stronger than the sewing portion 85. ing.

Returning to FIG. 3, the first side portions 31R, 32R and the second side portions 31L, 32L of the webbing 30 are connected to the fixed wire 60 fixed to the first bracket 100 by a connecting member CN different from the webbing 30. Fixed. Details of the connecting member CN will be described later.

In the second webbing portion 32, the rear end portion of the third side portion 32R and the rear end portion of the fourth side portion 32L are sewn together along the vertical direction. Thereby, as shown in FIG. 6, the second webbing portion 32 is formed in a loop shape surrounding the airbag module 10 when viewed from the longitudinal direction. It should be noted that the third side portion 32R and the fourth side portion 32L may be made of a piece of cloth instead of being sewn together to form a loop.

As shown in FIG. 3 , the third side portion 32R of the second webbing portion 32 has a connecting portion 33 on its upper portion, and a hook 35 as a fixing member is fixed to the upper end of the connecting portion 33 . The hook 35 is hooked on the second edge 213B of the engaging hole 213 of the second bracket 200 (see FIG. 13). Thereby, the hook 35 fixes the longitudinal edge of the second webbing portion 32 , which is the upper edge in the present embodiment, to the case 2 . The connecting portion 33 of the second webbing portion 32 has a trapezoidal shape in which the portion connected to the hook 35 becomes wider as the distance from the hook 35 increases.

The first bracket 100 is a plate-like member to which the airbag module 10 is fixed, and is made of sheet metal. The first bracket 100 is fixed to the second bracket 200 with the airbag module 10 attached.

The first bracket 100 includes a main body portion 110 to which the airbag module 10 is fixed, a harness facing portion 120 as a bulging portion, a connector fixing portion 130, a notch portion 140, a first fixing portion 150, and a first fixing portion 150. It has a second fixing portion 160 and a third fixing portion 170 .

The body portion 110 is a portion to which the airbag module 10 is fixed, and is provided with two fixing holes 111 through which the two bolts 12B of the inflator 12 are respectively inserted. A bolt 12B is inserted into the fixing hole 111, and a nut 12N is screwed onto the bolt 12B, thereby fixing the airbag module 10 to the main body portion 110. As shown in FIG. The airbag module 10 is arranged on the left and right outer sides of the body portion 110 . A fixing wire 60 for fixing the connecting member CN is joined to the body portion 110 by welding or the like.

The harness facing portion 120 is a portion that laterally faces a first portion 410 (see FIG. 4) of the harness 400 described later, and extends upward from the upper end of the main body portion 110 . The harness facing portion 120 bulges toward the left and right inner sides opposite to the left and right outer sides where the airbag module 10 is arranged with respect to the main body portion 110 and the connector fixing portion 130 (see also FIG. 9). A fixing hole 121 with which a clip 441 (see FIG. 9) for fixing the harness 400 to the first bracket 100 is engaged is provided in the lower portion of the harness facing portion 120 .

The connector fixing portion 130 is a portion to which a connector 450, which will be described later, is fixed, and extends upward from the front portion of the upper end of the harness facing portion 120 and further extends rearward. The connector fixing portion 130 is arranged on the opposite side of the main body portion 110 with the harness facing portion 120 interposed therebetween. Therefore, the connector fixing portion 130 is arranged at a position farther from the inflator 12 of the airbag module 10 fixed to the main body portion 110 than the harness facing portion 120 . A fixing hole 131 with which a clip 442 (see FIGS. 9 and 10) for fixing the harness 400 to the first bracket 100 is engaged is provided in the lower portion of the connector fixing portion 130 . A fixing hole 132 is provided in the upper portion of the connector fixing portion 130 to engage a clip 460 (see FIG. 10) for fixing the connector 450 to the first bracket 100 .

The notch 140 is formed at the rear edge of the upper portion of the first bracket 100 . The notch 140 is a portion through which the striker 350 passes.

The first fixing portion 150 is provided at the lower end portion of the main body portion 110 and is shifted inward in the left-right direction with respect to the main body portion 110 . The first fixing portion 150 is provided with a fixing hole 151 through which the bolt 93B passes when fixing the side airbag device 1 to the vehicle body. A tongue portion 152 that engages with the engagement hole 234 of the second bracket 200 when fixing the first bracket 100 to the second bracket 200 extends from the lower end of the first fixing portion 150 . The tongue portion 152 is bent left and right inward and further extends downward. The width of the tongue portion 152 in the front-rear direction is substantially the same as the width of the engaging hole 234 in the front-rear direction.

The second fixing portion 160 is provided at the rear end portion of the harness facing portion 120 and is shifted inward in the left-right direction with respect to the harness facing portion 120 . The second fixing portion 160 is provided with fixing holes 161 into which the bolts 91B are inserted when fixing the first bracket 100 to the second bracket 200 .

The third fixing portion 170 is provided at the rear end portion of the connector fixing portion 130 and is shifted inward in the left-right direction with respect to the connector fixing portion 130 . The third fixing portion 170 is provided with a fixing hole 171 into which the bolt 92B is inserted when fixing the side airbag device 1 to the vehicle body.

As shown in FIG. 7, the connecting member CN has a first attachment wire 40 and a second attachment wire 50. As shown in FIG.
The first attachment wire 40 is a member to which the first side portion 31R of the first webbing portion 31 is attached, and the second attachment wire 50 is a member to which the second side portion 31L is attached. The fixed wire 60 is a member to which the first mounting wire 40 and the second mounting wire 50 are fixed. The first attachment wire 40, the second attachment wire 50 and the fixed wire 60 are made of metal.

The fixed wire 60 includes a wire attachment portion 61 extending vertically, a pair of connecting portions 62 extending forward from the upper and lower ends of the wire attaching portion 61, and a pair of connecting portions 62 extending vertically from the front ends of the connecting portions 62 so as to approach each other. and a fixed portion 63 . The pair of fixed portions 63 are fixed to the first bracket 100 (see FIG. 3).
The wire attachment portion 61 has two upper and lower wire engaging portions 61A that are bent so that portions with which curved portions 44 and 54 (described later) of the attachment wires 40 and 50 are engaged are convex forward.

The first attachment wire 40 includes a first webbing attachment portion 41 extending vertically, a first upper extending portion 42 extending rearward from the upper end of the first webbing attachment portion 41, and a first webbing attachment. It has a first downward extending portion 43 which is a portion extending rearward from the lower end of the portion 41 .
The first webbing attachment portion 41 is a portion to which the first side portion 31R is attached. The first side portion 31R has a ring portion R1 at its rear end, and the first attachment wire 40 is attached to the first side portion 31R by passing the first webbing attachment portion 41 through the ring portion R1. .

A first curved portion 44 is provided at the rear end portion of each of the first upwardly extending portion 42 and the first downwardly extending portion 43 . The first curved portion 44 is a portion that engages with the wire attachment portion 61 (wire engaging portion 61A) of the fixed wire 60, and is curved so as to protrude rearward. 44 A of each edge part of each 1st curved part 44 is bent, and it is extended up and down so that it may mutually approach.

In the present embodiment, the first downwardly extending portion 43 approaches the first upwardly extending portion 42 as it approaches the wire attachment portion 61 . As a result, it is possible to secure the vertical length of the first webbing attachment portion 41 while making the portion attached to the fixed wire 60 compact. Therefore, while being compact, the deployment direction of the airbag 11 can be well regulated by the first side portion 31R.

By the way, as shown in FIG. 3, the first fixing portion 150, the second fixing portion 160 and the third fixing portion 170 of the first bracket 100 are displaced inward in the left-right direction with respect to the main body portion 110. Since the second vehicle body fixing portion 232 of the second bracket 200 is shifted outward in the left-right direction with respect to the main body portion 210, when the first bracket 100 and the second bracket 200 are put together, the position shown in FIG. Thus, a space is created between the body portion 110 and the body portion 210 . A portion of the first attachment wire 40 , that is, a portion of the connecting member CN is arranged in the space between the first bracket 100 and the second bracket 200 .

As shown in FIG. 7, the second attachment wire 50 includes a second webbing attachment portion 51 extending vertically and a second upper extending portion extending leftward and rightward inward from the upper end of the second webbing attachment portion 51. 52 , and a second downward extending portion 53 extending inward from the lower end of the second webbing attachment portion 51 .
The second webbing attachment portion 51 is a portion to which the second side portion 31L is attached. The second side portion 31L has a ring portion R2 at its rear end, and the second attachment wire 50 is attached to the second side portion 31L by passing the second webbing attachment portion 51 through the ring portion R2. .

A second curved portion 54 is provided at each of the left and right inner end portions of the second upwardly extending portion 52 and the second downwardly extending portion 53 . The second curved portion 54 is a portion that engages with the wire attachment portion 61 (wire engaging portion 61A) of the fixed wire 60, and is curved so as to protrude leftward and rightward. Each end portion 54A of each second curved portion 54 is bent and extended forward, and further bent in the vertical direction so as to approach each other. When the second bending portion 54 is engaged with the wire attachment portion 61 , the end portion 54A of the second bending portion 54 is engaged with the end portion 44A of the first bending portion 44 . Therefore, not only the first mounting wire 40 engages the fixed wire 60 and the second mounting wire 50 engages the fixed wire 60, but the second mounting wire 50 also engages the first mounting wire 40. , the engagement of these three parts is not easily disengaged.

In addition, in the present embodiment, the second upwardly extending portion 52 and the second downwardly extending portion 53 approach each other as the wire attachment portion 61 is approached. Thereby, the vertical length of the second webbing attachment portion 51 can be ensured while the portion attached to the fixed wire 60 has a compact configuration. Therefore, while being compact, the deployment direction of the airbag 11 can be well regulated by the second side portion 31L.

As shown in FIG. 8, the two bolts 12B of the inflator 12 are located at different positions from the second webbing portion 32 in the longitudinal direction. Specifically, the two bolts 12B are positioned above the second webbing portion 32 .

In addition, the two bolts 12B are positioned so as to overlap the first webbing portion 31 in the longitudinal direction and do not pass through the first webbing portion 31 . Specifically, as shown in FIG. 5(a), the first side portion 31R of the first webbing portion 31 is short in the front-rear direction and does not extend to the right side of the bolt 12B. The portion 31R is arranged so as not to interfere with the bolt 12B. A rear end portion of the first side portion 31R and the fixed wire 60 are connected by a first attachment wire 40 that is long in the front-rear direction. A first attachment wire 40 is arranged at a portion where the inflator 12 and the bolt 12B are positioned in the front-rear direction.
The first attachment wire 40 is arranged so as not to overlap the bolt 12B when viewed from the left and right direction, as shown in FIG. That is, the connecting member CN is arranged so as not to interfere with the bolt 12B. In addition, in FIG. 8, the webbing 30 is indicated by an imaginary line.

A lower end portion, which is an example of one end portion in the longitudinal direction, of the airbag module 10 is covered with the second webbing portion 32 .

In addition, the lower end portion of the first bracket 100 overlaps the second webbing portion 32 in the longitudinal direction. In other words, the lower end portion of the first bracket 100 overlaps the second webbing portion 32 when viewed from the left-right direction.

As shown in FIG. 4, the airbag module 10 is connected to a harness 400 for supplying electricity to the inflator 12 . The harness 400 has one end electrically connected to the inflator 12 and the other end electrically connected to a connector 450 fixed to the first bracket 100 . Harness 400 has a first portion 410 , a second portion 420 and a third portion 430 .

The first portion 410 is a portion arranged on the opposite side of the harness facing portion 120 of the first bracket 100 to the side where the airbag module 10 is arranged, that is, on the left and right inner sides. Also, as shown in FIG. 9 , the first portion 410 is arranged between the first bracket 100 and the second bracket 200 while the first bracket 100 is fixed to the second bracket 200 . Specifically, the first portion 410 is arranged in the space between the harness facing portion 120 of the first bracket 100 and the main body portion 210 of the second bracket 200 .

The first portion 410 has a first end 411 on the second portion 420 side and a second end 412 on the third portion 430 side (opposite to the second portion 420 side). and second end portions 412 are fixed to the left and right inner sides of the first bracket 100 . Specifically, the first end portion 411 is fixed to the left and right inner sides of the first bracket 100 by engaging the clips 441 with the fixing holes 121 of the harness facing portion 120 from the left and right inner sides while being held by the clips 441 . It is The second end portion 412 is fixed to the left and right inner sides of the first bracket 100 by engaging the clips 442 with the fixing holes 131 of the connector fixing portion 130 from the left and right inner sides while being held by the clips 442 . there is

The second portion 420 is a portion that extends from the first end portion 411 of the first portion 410 and is connected to the inflator 12 (see FIG. 4). The second portion 420 connected to the inflator 12 is connected to the first portion 410 through the side of the first bracket 100 opposite to the side where the airbag 11 deploys, that is, the rear side of the first bracket 100 . More specifically, the second portion 420 is drawn from the left and right outer sides of the first bracket 100 on which the inflator 12 is arranged to the left and right inner sides of the first bracket 100 through the rear side of the harness facing portion 120 . It is connected to the first end 411 .

The third portion 430 is the portion that extends from the second end 412 of the first portion 410 and is connected to the connector 450 . The third portion 430 extends from the second end portion 412 of the first portion 410 located on the inner left and right sides of the first bracket 100 to the left and right sides of the first bracket 100 where the airbag module 10 is arranged, passing through the front side of the connector fixing portion 130 . It is drawn out and connected to the connector 450 . As shown in FIG. 10 , the connector fixing portion 130 of the first bracket 100 has a flange 133 bent inward in the left and right direction at the front end facing the third portion 430 . Therefore, even if the third portion 430 contacts the front end portion of the connector fixing portion 130 , the third portion 430 contacts the curved curved portion of the flange 133 rather than the edge portion of the sheet metal forming the first bracket 100 .

The connectors 450 are arranged on the left and right outer sides of the first bracket 100 . The connector 450 is fixed to the left and right outer sides of the first bracket 100 by engaging the clips 460 attached to the connector 450 with the fixing holes 132 (see FIG. 3) of the connector fixing portion 130 from the left and right outer sides. A connector of a harness (not shown) for supplying electricity to the inflator 12 from a power supply provided outside the side airbag device 1 is connected to the connector 450 .

As shown in FIG. 5(a), the skin member 80 includes a first skin member 510, a second skin member 520, and a wire fastener 550 as a fastener.
The first skin member 510 includes an inner cover portion 511 as a first cover portion, a front cover portion 512, an upper cover portion 513 (see FIG. 11(b)), an inner fixing portion 514 as a base fixing portion, It has an outer fixing portion 515 , a third cover portion 531 and a fourth cover portion 541 .

The inner cover portion 511 is a portion that covers the base member BA and the pad 70 from the left and right inner sides. As shown in FIG. 11B, the inner cover portion 511 has a first hole 516 through which a striker 350 provided on the vehicle body is inserted while the side airbag device 1 is attached to the vehicle body. The inner cover portion 511 also has an opening 517 that exposes the vehicle body fixing portions 210A and 232, which are part of the second bracket 200. As shown in FIG. Specifically, the opening 517 includes a first opening 517A exposing the first vehicle body fixing portion 210A and a second opening 517B exposing the second vehicle body fixing portion 232. As shown in FIG.

In addition, the inner cover portion 511 has a slit hole 518 and a notch portion 519 through which a portion of the pad 70 is exposed. The pad 70 has a ridge line portion 72 extending substantially in the front-rear direction on the left and right inner surfaces thereof and protruding toward the left and right inner sides. The left and right inner surfaces of the pad 70 follow the shape of the left and right outer surfaces of the side panels 300 (see FIG. 2) of the vehicle body, and the upper portion of the ridgeline portion 72 extends along the vertical direction. The lower part extends obliquely so as to be positioned on the left and right outer sides as it goes down. The slit hole 518 is formed to extend substantially back and forth along the ridgeline portion 72 of the pad 70 .

The front side cover portion 512 is a portion that covers the second bracket 200 and the pad 70 from the front side, and extends outward from the front end of the inner cover portion 511 to the left and right. A split portion 1</b>C that splits when the airbag 11 deploys is provided in the front cover portion 512 .
The upper cover portion 513 is a portion that covers the second bracket 200 and the pad 70 from above, extends rearward from the upper end of the front cover portion 512 , and has left and right inner ends connected to the upper end of the front cover portion 512 . .

As shown in FIG. 5( a ), the inner fixing portion 514 extends laterally outward from the rear end of the inner cover portion 511 . The inner fixing portion 514 is arranged so as to wrap around the rear end portion of the pad 70 , and the end portion 514</b>A faces the left and right outer surfaces of the pad 70 . The inner fixing portion 514 has a hook 82 that can be engaged with the engaging hole 213 of the second bracket 200 at the end portion 514A. The hooks 82 are hooked on the first edges 213A (see FIG. 3) of the engagement holes 213 from the left and right outer sides, so that the outer fixing portion 514 of the first outer skin member 510 is attached to the base member BA. is fixed to the second bracket 200 of the.

The outer fixing portions 515 extend rearward from the left and right outer ends of the front cover portion 512 . The outer fixing portion 515 has a hook 81 as an engaging portion that can be engaged with the second wire 22 of the wire frame 20 at the end portion 515A. The hooks 81 are hooked on the skin attachment portions 22F of the second wire 22 from the left and right outer sides, whereby the outer fixing portions 515 of the first skin member 510 of the skin member 80 are fixed to the wire frame 20 of the base member BA. It is Hooks 81 and 82 are attached to ends 514A and 515A by sewing or gluing.

In the pad 70, recesses 73 capable of receiving the hooks 81 are formed in the edge portions corresponding to the skin attachment portions 22F of the second wires 22, respectively. The recessed portion 73 has a shape that is recessed toward the left and right inner sides, thereby opening to the left and right outer sides.

The third cover portion 531 is a portion that covers the left, right, and rear sides of the airbag module 10 and extends rearward from the end portion 515A of the outer fixing portion 515 . Specifically, the third cover portion 531 has its front end sewn to the end portion 515A. A hook-shaped engaging member 532 is attached to the rear end portion of the third cover portion 531 by sewing or gluing.

The fourth cover portion 541 extends laterally outward from the rear end portion of the inner cover portion 511 . Specifically, the fourth cover portion 541 has left and right inner ends sewn to the inner fixing portion 514 extending from the rear end of the inner cover portion 511 . The fourth cover portion 541 is arranged on the rear side of the airbag module 10 . The fourth cover part 541 is connected to the third cover part 531 . Specifically, flat plate-like engaged members 542 are attached to the left and right outer ends of the fourth cover portion 541 by sewing or bonding. By engaging with the engaging member 532 of the third cover portion 531 , it is connected to the third cover portion 531 .

The second skin member 520 has a second cover portion 521 that covers the inner cover portion 511 of the first skin member 510 . As shown in FIG. 11( a ), the second cover portion 521 is a portion forming the inner side surface 1 S of the side airbag device 1 , and the front end portion and the upper end portion of the second cover portion 521 correspond to the front end portion and the upper end portion of the inner cover portion 511 . sewn on. The second cover portion 521 has a second hole 526 through which the striker 350 is inserted while the side airbag device 1 is attached to the vehicle body.

Line fastener 550 is a member for fastening second cover portion 521 of second skin member 520 to first skin member 510 , and is provided on first skin member 510 and second skin member 520 . Specifically, as shown in FIG. 11( b ), the line fastener 550 has a pair of elements 551 and one slider 552 , one element 551 being attached to the inner cover portion 511 of the first skin member 510 . , the other element 551 is attached to the second cover portion 521 of the second skin member 520 . As shown in FIG. 11(a), the line fastener 550 is arranged along the rear end of the inner surface 1S. Specifically, the line fastener 550 has one element 551 arranged along the rear end portion of the inner cover portion 511 and the other element 551 arranged along the rear end portion of the second cover portion 521 . there is

As shown in FIG. 12, a plate member 560 is attached to the inner cover portion 511 of the first skin member 510, and a cloth-like member 570 is attached to the second cover portion 521 of the second skin member 520. .

The plate member 560 is a plate-like member made of resin, and has a pair of insertion holes 561 through which the pair of first rod-shaped portions 351 of the striker 350 are inserted, and a pair of insertion holes 561 between the pair of insertion holes 561 . It has a cut 562 provided so as to connect. The plate member 560 has cuts 562 so that the second rod-shaped portions 352 of the striker 350 can pass through, thereby allowing the pair of first rod-shaped portions 351 to pass through the pair of insertion holes 561 . The plate member 560 is attached to the portion around the first hole 516 of the inner cover portion 511 from the left and right outer sides by sewing or gluing.

Like the skin member 80, the cloth member 570 is made of cloth, leather, or the like. The cloth-like member 570 is a portion between the pair of first bar-like portions 351 of the striker 350 inserted through the second hole 526 of the second cover portion 521, more specifically, a plate member 560 attached to the inner cover portion 511. It has a blindfold portion 571 that covers a portion (cut 562) between the pair of insertion holes 561. As shown in FIG. The blindfold portion 571 is exposed to the inside of the vehicle interior through the second hole 526 . The cloth-like member 570 is attached to, for example, the portion above the second hole 526 of the second cover portion 521 around the second hole 526 by sewing or bonding from the left and right outside. ing.

Next, an example of a method for assembling the side airbag device 1 and a method for attaching the side airbag device 1 to the vehicle body will be described.
As shown in FIG. 3, first, the second bracket 200 and the wire frame 20 are fixed by welding to form the base member BA. Next, the base member BA is placed in a mold (not shown), and the pad 70 is integrally formed with the base member BA as shown in FIG. 5(a).

Next, the front end portion of the webbing 30 is joined to the first skin member 510 of the skin member 80 . Then, the pad 70 is covered with the skin member 80 (first skin member 510 ), and the skin member 80 is fixed to the second bracket 200 and the wire frame 20 . Specifically, the hook 82 attached to the end portion 514A of the inner fixing portion 514 is hooked to the engagement hole 213 of the second bracket 200, and the hook 81 attached to the end portion 515A of the outer fixing portion 515 is attached to the wire frame. The second wire 22 of 20 is hooked to the skin attachment portion 22F provided.

Next, the webbing 30 is passed through the slit 71A of the pad 70 from front to back. Then, as shown in FIG. 13, the webbing 30 extends rearward from the front wall of the pad 70 . After that, the first attachment wire 40 is attached to the first side portion 31R of the first webbing portion 31 and the second attachment wire 50 is attached to the second side portion 31L of the first webbing portion 31 . Then, the hook 35 attached to the second webbing portion 32 is hooked to the engaging hole 213 . As a result, the right side portion of the upper edge of the second webbing portion 32 is maintained in an open state along the second bracket 200 side.

On the other hand, the airbag module 10 is attached to the first bracket 100 as shown in FIG. Specifically, the two bolts 12B are passed through the fixing holes 111 of the first bracket 100, and the nuts 12N are tightened.

Also, as shown in FIG. 9 , a harness 400 extending from the airbag module 10 and a connector 450 provided at the end of the harness 400 are attached to the first bracket 100 . Specifically, the harness 400 is passed through the rear side of the first bracket 100 , and the clip 441 attached to the first end 411 of the first portion 410 is engaged with the fixing hole 121 of the first bracket 100 . Also, the clip 442 attached to the second end 412 of the first portion 410 is engaged with the fixing hole 131 of the first bracket 100 . Further, the harness 400 is pulled out through the front side of the first bracket 100 to the left and right outside, and the clip 460 attached to the connector 450 is engaged with the fixing hole 132 of the first bracket 100 .

Then, as shown in FIG. 13, the upper edge portion of the loop-shaped second webbing portion 32 is opened, the first webbing portion 31 is also opened to the left and right, and the lower end portion of the airbag module 10 is connected to the second webbing portion. Insert into 32 loops. Then, when the airbag module 10 is fully inserted into the second webbing portion 32 until the lower end of the first bracket 100 is positioned at the height of the second webbing portion 32, the second webbing portion 100, as shown in FIG. 1. Pull the mounting wire 40 back through the airbag module 10 and the right side of the first bracket 100 and hook it onto the fixing wire 60 . Also, the second side portion 31L and the second attachment wire 50 are pulled rearward through the left side of the airbag module 10 and hooked on the fixed wire 60 and the first attachment wire 40 .

Next, the first bracket 100 is fixed to the second bracket 200 . Specifically, as shown in FIG. 14, first, the tip of the tongue 152 is inserted into the engagement hole 234 . Next, the first bracket 100 is turned left and right inward around the tongue portion 152 to align the fixing hole 161 of the first bracket 100 with the nut 91N (hole 218) of the second bracket 200. As shown in FIG. Then, as shown in FIG. 3, the bolt 91B is passed through the fixing hole 161 and the hole 218 from the left and right outside and fastened to the nut 91N.

Next, the exposed airbag module 10 and the like at this stage are covered with a third cover portion 531 as shown in FIG. 5(a). Specifically, the third cover portion 531 is pulled rearward through the left and right outer sides of the airbag module 10 , and the fourth cover portion 541 is pulled left and right outer sides to engage the engaged member 542 with the engaging member 532 .

The side airbag device 1 can be manufactured through the above steps. The order of the above steps may be changed as appropriate.

When mounting the side airbag device 1 to the vehicle body, first, the airbag mounting bracket 340 and the base bracket 360 to which the striker 350 is fixed are fixed to the side panel 300 as shown in FIG. Further, as shown in FIG. 11(b), the line fastener 550 of the skin member 80 is opened. At this time, the fixing hole 211 of the second bracket 200 is exposed from the first opening 517A of the first skin member 510, and the fixing hole 233 is exposed from the second opening 517B.

Then, the side airbag device 1 is arranged at the mounting position of the side panel 300 . Specifically, the side airbag device 1 is brought closer to the side panel 300 from the left and right inner sides, and as shown in FIG. is inserted through the insertion hole 561 and through the first hole 516 . Further, as shown in FIG. 3, the bolt 92B fixed to the base bracket 360 is inserted through the fixing hole 171 of the first bracket 100 and the fixing hole 211 of the second bracket 200. As shown in FIG.

Nuts 92N are fastened to bolts 92B of base bracket 360, and bolts 93B are inserted into fixing hole 233 of second bracket 200, fixing hole 151 of first bracket 100, and hole 341 of airbag mounting bracket 340 from the left and right inner sides. and fastened to a nut 93N fixed to the airbag mounting bracket 340.

Then, as shown in FIGS. 11(b) to 11(a), the striker 350 is inserted through the second hole 526 of the second skin member 520, and then the slider 552 is slid to close the wire fastener 550. The cover portion 511 is covered with the second cover portion 521 .
Through the above steps, the side airbag device 1 can be attached to the vehicle body.

The effects of the side airbag device 1 of this embodiment as described above will be described.
Since the second webbing portion 32 has a loop shape, by inserting the lower end of the airbag module 10 into the second webbing portion 32, it is easy to position the airbag module 10 with respect to the case 2, and the case 2, the airbag module 10 is easily assembled. The webbing 30 does not have a loop shape as a whole, but only a part of the lower side has a loop shape. Since it is divided into two side portions 31L, the first side portion 31R and the second side portion 31L can be separated and opened. Therefore, it is easy to insert the airbag module 10 between the first side portion 31R and the second side portion 31L and insert the lower end portion of the airbag module 10 into the second webbing portion 32 . That is, the assembly work of the side airbag device 1 can be facilitated.

After the lower end portion of the airbag module 10 is inserted into the second webbing portion 32, the first attachment wire 40 and the second attachment wire 50 are fixed to the fixing wire 60, so that the first side portion 31R and the A rear end of the second side portion 31L can be fixed. Therefore, the first webbing portion 31 can be firmly fixed, and the webbing 30 can reliably restrict the deployment direction of the airbag 11 .

In addition, since the bolt 12B of the inflator 12 is located at a position different from that of the second webbing portion 32 in the longitudinal direction of the inflator 12, the bolt 12B does not need to pass through the second webbing portion 32. Therefore, it is easy to put the airbag module 10 into the second webbing portion 32 .

In addition, the bolt 12B of the inflator 12 is located at a position overlapping the first webbing portion 31 in the longitudinal direction of the inflator 12, but since the connecting member CN is arranged so as not to interfere with the bolt 12B, The work of fixing the 31R and the second side portion 31L with the connecting member CN is easy to perform.

In addition, since the lower end of the first bracket 100 overlaps the second webbing portion 32 when viewed from the left-right direction, the airbag module 10 is inserted into the second webbing portion 32, and then the first bracket 100 is removed. By observing the positional relationship between the lower end portion and the second webbing portion 32, it is possible to confirm whether the airbag module 10 has been assembled correctly.

Further, since a portion of the connecting member CN is arranged between the first bracket 100 and the second bracket 200, the airbag 11 is less likely to come into contact with the connecting member CN.

Further, since the lower end portion of the airbag module 10 is positioned on the second webbing portion 32, the operation of inserting the airbag module 10 into the second webbing portion 32 is facilitated.

Moreover, since the airbag module 10 can be assembled by inserting it into the loop of the second webbing portion 32 from above, the assembly is easy.

In addition, since the length of the second webbing portion 32 in the longitudinal direction of the inflator 12 is shorter than that of the first webbing portion 31 , the airbag module 10 can be easily inserted into the second webbing portion 32 .

Further, since the edge of the second webbing portion 32 is fixed to the case 2 by the hook 35 , the loop-shaped mouth of the second webbing portion 32 can be easily opened, and the airbag module 10 can be attached to the second webbing portion 32 . Easy to insert. In particular, in this embodiment, since the upper edge of the second webbing portion 32 is fixed to the case 2 , the mouth of the second webbing portion 32 opens upward, and the airbag module 10 is attached to the second webbing portion 32 . Easy to insert.

In addition, since the connecting portion 33, which is the portion of the second webbing portion 32 connected to the hook 35, becomes wider as the distance from the hook 35 increases, the edge of the second webbing portion 32 can be opened in a wide range. The airbag module 10 can be easily inserted into the second webbing portion 32 .

In addition, since the skin attachment portion 22F of the second wire 22 is arranged at a position closer to the inside of the case 2 than the first wire 21, the hook 81 engaged with the skin attachment portion 22F is positioned outside the case 2. It is possible to suppress the large protrusion to the As a result, the external shape of the case 2 can be clearly displayed, and the appearance of the side airbag device 1 can be improved.

Further, since the hook 81 does not protrude to the outside of the case 2, the size of the side airbag device 1 can be suppressed and the side airbag device 1 can be made compact. Moreover, since the harness 400 is arranged in the case 2, more specifically in the space formed by the wire frame 20 and the second bracket 200, and does not protrude outside the case 2, the size of the side airbag device 1 is increased. can be suppressed and made compact.

Further, since the pad 70 has the concave portion 73 capable of receiving the hook 81, the hook 81 is less likely to protrude from the pad 70, and the external shape of the case 2 can be made more beautiful. Thereby, the appearance of the side airbag device 1 can be improved.

In addition, since the bent convex portion 22G, which is the portion between the two adjacent skin attachment portions 22F of the second wire 22, is fixed to the first wire 21, the hook 81 is attached to the first wire 21 of the second wire 22. can be engaged near a rigid portion fixed to the Thereby, the skin member 80 can be firmly fixed to the wire frame 20 .

Further, the front extending portion 22D of the second wire 22 is arranged at a position closer to the inner side in the left-right direction of the case 2 than the front frame portion 21D of the first wire 21 when viewed from the front side, and the front frame portion 21D is arranged. , the hook 81 can be engaged with the second wire 22 near the surface of the case 2 while preventing the hook 81 from protruding significantly outside the case 2 . Thereby, the skin member 80 can be easily attached to the wire frame 20 .

In addition, the harness 400 has the first portion 410 arranged on the opposite side of the first bracket 100 to the side where the airbag module 10 is arranged, and the second portion 420 of the first bracket 100 on which the airbag 11 deploys. Since it is connected to the first portion 410 through the opposite side, contact between the airbag 11 and the harness 400 can be suppressed when the airbag 11 is deployed.

Also, since the first portion 410 is arranged between the first bracket 100 and the second bracket 200 , the first portion 410 of the harness 400 can be protected by the first bracket 100 and the second bracket 200 .

Further, since the first bracket 100 has the harness facing portion 120 that bulges to the left and right, the uneven shape is formed on the first bracket 100, so that the rigidity of the first bracket 100 can be improved. Since the first portion 410 is arranged between the harness facing portion 120 and the second bracket 200, the first portion 410 of the harness 400 can be effectively protected by the first bracket 100 with improved rigidity. .

In addition, since the ends 411 and 412 of the first portion 410 are fixed to the first bracket 100, the movement of the first portion 410 can be suppressed. Accordingly, first portion 410 of harness 400 can be effectively protected between first bracket 100 and second bracket 200 .

In addition, since the connector 450 is arranged on the side of the first bracket 100 where the airbag module 10 is arranged, that is, on the side opposite to the second bracket 200 side, the wiring when installing the side airbag device 1 to the vehicle body is eliminated. Easy to work. In addition, since the third portion 430 of the harness 400 can be drawn toward the connector 450 from a position farther from the inflator 12 than the harness facing portion 120 toward the side where the airbag module 10 is arranged, the airbag module 10 is deployed. Contact between the bag 11 and the third portion 430 of the harness 400 can be suppressed.

Further, since the connector fixing portion 130 has the bent flange 133 at the front end facing the third portion 430 , the contact of the third portion 430 with the edge portion of the first bracket 100 can be suppressed. Thereby, the third portion 430 of the harness 400 can be protected.

In addition, since the skin member 80 includes the second skin member 520 including the second cover portion 521, the inner cover portion 511 of the first skin member 510, the inner cover portion 511 of the first skin member 510, and the inner covers of the base member BA and the pad 70 are formed by the second cover portion 521. A portion exposed from the portion 511 can be covered. Further, since the first skin member 510 has the inner cover portion 511, the wire fastener 550 provided on the first skin member 510 is pulled by fixing the inner fixing portion 514 of the first skin member 510 to the base member BA. However, it is possible to suppress the displacement of the position of the second cover part 521 even when the wire fastener 550 is used to fasten the second cover part 521 and the first skin member 510 to the second cover part 521 . can. Thereby, the appearance of the inner surface 1S of the side airbag device 1 can be improved.

Further, since the plate member 560 is attached to the inner cover portion 511, the gap between the pair of first rod-shaped portions 351 of the striker 350 can be covered and hidden by the plate member 560. FIG. Thereby, the appearance of the inner surface 1S of the side airbag device 1 can be improved.

Moreover, since the cloth-like member 570 is attached to the second cover portion 521 , the cut 562 of the plate member 560 can be covered and hidden by the cloth-like member 570 . Thereby, the appearance of the inner surface 1S of the side airbag device 1 can be further improved. In addition, it is possible to prevent foreign matter from entering the side airbag device 1 or the like from between the pair of first rod-shaped portions 351 of the striker 350 .

Further, since the inner cover portion 511 has the opening 517 for exposing the vehicle body fixing portions 210A and 232 of the base member BA, the side airbag device 1 can be attached to the vehicle body from the left and right inner sides. This facilitates the mounting work of the side airbag device 1 . After the side airbag device 1 is attached to the vehicle body, the vehicle body fixing portions 210A and 232 can be covered and hidden by the second cover portion 521. Therefore, the inner surface 1S of the side airbag device 1 does not look good. Secured.

Moreover, since the base member BA has the first vehicle body fixing portion 210A and the second vehicle body fixing portion 232, and the opening 517 includes the first opening 517A and the second opening 517B, the side airbag device 1 can be easily mounted. At the same time, the side airbag device 1 can be firmly fixed to the vehicle body by the plurality of vehicle body fixing portions 210A and 232. As shown in FIG.

Further, since the inner cover portion 511 has the slit hole 518 formed along the ridgeline portion 72 of the pad 70, unnecessary force is applied from the inner cover portion 511 covering the pad 70 to the vicinity of the ridgeline portion 72 of the pad 70. can be suppressed. Specifically, as shown in FIG. 15, without the slit hole 518, the skin member is stretched straight, and the skin member exerts a force to the pad 70 to crush the ridgeline portion 72 and its vicinity, as indicated by the two-dot chain line. Although there is a possibility that such a force is applied, the presence of the slit hole 518 can suppress the application of such a force. As a result, deformation of the pad 70 can be suppressed, so that the shape of the pad 70 can be clearly displayed, and the appearance of the inner surface 1S of the side airbag device 1 can be improved.

Further, since the wire fastener 550 is arranged along the rear end of the inner surface 1S, the second cover portion 521 is attached to the first skin member by the wire fastener 550 after the side airbag device 1 is attached to the vehicle body. It can stay at 510. This facilitates the mounting work of the side airbag device 1 . In addition, the appearance of the inner surface 1S of the side airbag device 1 can be improved, for example, compared to the case where the wire fastener 550 is conspicuously arranged near the center of the inner surface 1S in the front-rear direction.

In addition, since the skin member 80 includes the third cover portions 531 that cover the left, right, and rear sides of the airbag module 10 , the airbag module 10 can be protected by the third cover portions 531 . In addition, by covering the airbag module 10 with the third cover portion 531, the appearance of the side airbag device 1 before being attached to the vehicle body can be improved.

Although one embodiment of the invention has been described above, the invention is not limited to the above embodiment, and can be modified as appropriate.
For example, although the fixed wire 60 was fixed to the first bracket 100 in the above embodiment, it may be fixed to the case 2 , for example, the second bracket 200 .

Moreover, although the connecting member CN has the first side portion 31R and the second side portion 31L fixed to the fixed wire 60 fixed to the first bracket 100, they may be fixed to the case 2 as well. Furthermore, the connecting member CN may connect the first side portion 31R and the second side portion 31L to each other. For example, by connecting the first side portion 31R and the second side portion 31L with the connecting member CN, the first side portion 31R, the second side portion 31L and the connecting member CN are connected to the airbag when viewed from the longitudinal direction of the inflator 12. It may be configured to surround the module 10 .

Also, the connecting member CN may be arranged entirely between the first bracket 100 and the second bracket 200 .

In the above-described embodiment, the second webbing portion 32 was entirely arranged at a different position from the first webbing portion 31 in the longitudinal direction of the inflator 12, but a part It may be arranged at the same position as the portion 31 . For example, the first webbing portion may overlap the second webbing portion so as to surround the outside of the second webbing portion.

In the above-described embodiment, the second webbing portion 32 is located below the first webbing portion 31, and the airbag module 10 is inserted downward through the upper opening of the second webbing portion 32. , the second webbing portion may be configured such that the airbag module is inserted from below. For example, the second webbing portion may be positioned above the first webbing portion.

In the above-described embodiment, one longitudinal end of the airbag module 10 is covered with the second webbing portion 32, but the one end of the airbag module does not overlap the second webbing portion and the second webbing portion does not overlap the second webbing portion. You may comprise so that a cloth part may be penetrated and inserted up and down.

Also, the second webbing portion may be longer than the first webbing portion in the longitudinal direction.

Moreover, although the hook 35 was illustrated as a fixing member, a snap button etc. may be sufficient as a fixing member. Furthermore, it is not necessary to provide a fixing member.

In the above embodiment, the third portion 430 of the harness 400 was fixed to the first bracket 100 via the connector 450, but the third portion is attached to the side of the first bracket on which the airbag module is arranged by a clip or the like. may be fixed to

In the above embodiment, the first portion 410 of the harness 400 was fixed to the first bracket 100 at both the first end 411 and the second end 412, but the first portion only has one end. It may be configured to be fixed to the first bracket. Alternatively, the portion between both ends may be fixed to the first bracket.

In the above embodiment, the front extending portion 22D (second extending portion) of the second wire 22 overlaps the front frame portion 21D (first extending portion) of the first wire 21 when viewed from the front side. , the second extension may be configured so as not to overlap the first extension when viewed from the front side.

In the above-described embodiment, the second wire 22 is fixed to the first wire 21 at one point (bent convex portion 22G) between two adjacent skin attachment portions 22F. A plurality of portions of the portion between the two mating skin attachment portions may be fixed to the first wire.

In the above-described embodiment, the skin member 80 has a structure in which the third cover portion 531 covers the left and right outer sides and the rear side of the airbag module 10, but both the third cover portion and the fourth cover portion cover the airbag module. It may be configured to cover. For example, the third cover portion may cover the left and right outer sides of the airbag module, and the fourth cover portion may cover the rear side of the airbag module. Further, the skin member may have a configuration in which the third cover portion and the fourth cover portion are not provided. Moreover, the structure which does not have a plate member and a cloth-like member may be sufficient.

In the above-described embodiment, two each of the vehicle body fixing portions 210A and 232 of the base member BA and the openings 517A and 517B of the inner cover portion 511 of the first skin member 510 are provided. Each may be one, or may be three or more.

In the above-described embodiment, the inner cover portion 511 (first cover portion) was configured to expose both a portion of the base member BA and a portion of the pad 70, but the first cover portion exposes the pad. Without exposing the base member, only a part of the base member BA such as the vehicle body fixing portion may be exposed, or only a part of the pad 70 may be exposed without exposing the base member. Further, the first cover portion may be configured without the slit hole 518 when the surface of the pad on the seat side is a flat surface without ridges.

In the above-described embodiment, the fastener of the outer skin member 80 was the line fastener 550, but the fastener may be a snap button, hook-and-loop fastener, or the like. In the above-described embodiment, the wire fastener 550 (fastener) was arranged along the rear end of the inner surface 1S of the side airbag device 1, but the fastener It may be arranged along the front end portion where the bag unfolds. The fasteners may also be located between the front and rear ends of the inner surface.

In the above-described embodiment, the side airbag device 1 is fixed to the vehicle body separately from the seat back portion that can be tilted forward, but is configured as part of the seat back portion that can be tilted forward or backward. may have been

In the above embodiment, the side airbag device 1 is arranged between the seat back S2 and the side wall BS of the vehicle body, but the side airbag device may be arranged between the seat cushion and the vehicle body. In this case, the side airbag device may expose the inner surface when the seat cushion (seat) is slid forward and backward.

Moreover, in the above-described embodiment, an example in which the side airbag device is applied to the rear seat of the automobile has been described, but the side airbag device may be applied to the front seat or the center seat of the third row of the automobile, for example.

Moreover, each element described in the above-described embodiment and modifications can be implemented in combination as appropriate.

Reference Signs List 1 side airbag device 1S inner surface 2 case 10 airbag module 11 airbag 12 inflator 70 pad 72 ridgeline portion 80 skin member 210A first vehicle body fixing portion 232 second vehicle body fixing portion 350 striker 351 first rod-shaped portion 352 second rod-shaped Part 510 First skin member 511 Inner cover part 514 Inner fixing part 516 First hole 517 Opening 517A First opening 517B Second opening 518 Slit hole 520 Second skin member 521 Second cover part 526 Second hole 531 Third cover part 541 fourth cover portion 550 wire fastener 560 plate member 561 insertion hole 562 cut 570 cloth member BA base member S sheet

Claims (9)

A side airbag device that is disposed between a seat and a vehicle body and exposes an inner surface that is a surface on the side of the seat when the seat is moved,
an airbag module having an airbag and an inflator for supplying gas into the airbag;
a case that houses the airbag module,
The case includes a base member fixed to the vehicle body, a pad covering the base member, and a skin member covering the base member and the pad,
The skin member is
a first cover portion covering the base member and the pad from the seat side to expose a part of at least one of the base member and the pad; and a base fixing portion extending from the first cover portion and fixed to the base member. a first skin member including a portion;
a second skin member including a second cover portion that covers the first cover portion and forms the inner surface;
A side airbag device, comprising: a fastener provided on the first skin member and the second skin member for fastening the second cover portion to the first skin member. The first cover portion has a first hole through which a striker provided on the vehicle body is inserted,
The second cover part has a second hole through which the striker is inserted,
The striker has a U-shape having a pair of first rod-shaped portions protruding from the vehicle body and a second rod-shaped portion connecting the tips of the pair of first rod-shaped portions,
A pair of insertion holes attached to a portion of the first cover portion surrounding the first hole, through which the pair of first rod-shaped portions are inserted, and a pair of insertion holes through which the second rod-shaped portions are inserted. 2. The side airbag device according to claim 1, further comprising a plate member having a slit provided therebetween so as to connect the pair of insertion holes. 3. The side according to claim 2, further comprising a cloth-like member attached to a portion of the second cover portion surrounding the second hole and covering a portion of the plate member between the pair of insertion holes. airbag device. The base member has a vehicle body fixing portion fixed to the vehicle body,
The side airbag device according to any one of claims 1 to 3, wherein the first cover portion has an opening that exposes the vehicle body fixing portion. The vehicle body fixing portion includes a first vehicle body fixing portion and a second vehicle body fixing portion arranged below the first vehicle body fixing portion,
5. The side airbag device according to claim 4, wherein the opening includes a first opening exposing the first vehicle-body fixing portion and a second opening exposing the second vehicle-body fixing portion. The pad has a ridge portion that is convex toward the seat side,
The side airbag device according to any one of claims 1 to 5, wherein the first cover portion has a slit hole formed along the ridgeline portion. 7. The fastener according to any one of claims 1 to 6, wherein the fastener is arranged along the edge of the inner surface opposite to the side on which the airbag deploys. side airbag device. The skin member is
a third cover portion covering the vehicle body side of the airbag module;
It extends from the end of the first cover portion opposite to the airbag deploying side, is arranged on the opposite side of the airbag module to the airbag deploying side, and is connected to the third cover portion. The side airbag device according to any one of claims 1 to 7, further comprising a fourth cover portion. The side airbag device according to any one of claims 1 to 8, wherein the fastener is a line fastener.

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