JP7061550B2 - Side airbag device - Google Patents

Description

The present invention relates to a side airbag device.

Conventionally, as a side airbag device, an airbag module, which is arranged between the 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 are housed. Those equipped with a case are known (see Patent Document 1).

Japanese Unexamined Patent Publication No. 2017-052493

By the way, it is desirable that the airbag module has a stable posture so that the airbag can be deployed well.

Therefore, an object of the present invention is to provide a side airbag device capable of stabilizing the posture of the airbag module.
Further, the purpose is to suppress the increase in size of the side airbag device.
It is also intended to prevent the force cloth from coming into contact with the fixed portion of the airbag module.
It also aims to stabilize the deployment of airbags.
Another object of the present invention is to simplify the components constituting the side airbag device.

In order to achieve the above object, the side airbag device of the present invention comprises an airbag module having an airbag and an inflator for supplying gas into the airbag, and the airbag module with the bolt of the inflator penetrating. It is characterized by comprising a module bracket having a module fixing portion to which the module is fixed, and a cover member having a plate-shaped portion arranged facing the module fixing portion and covering the tip end portion of the bolt.

According to such a configuration, since the tip portion of the bolt can be protected by the plate-shaped portion of the cover member, it is possible to suppress unnecessary force from being applied to the fixing portion of the airbag module. This makes it possible to stabilize the posture of the airbag module.

In the side airbag device described above, the plate-shaped portion may be arranged at a distance from the tip portion of the bolt.

According to this, since the plate-shaped portion and the tip end portion of the bolt do not come into contact with each other, it is possible to suppress the application of force from the cover member to the fixed portion of the airbag module. This makes it possible to stabilize the posture of the airbag module.

In the side airbag device described above, the module bracket and the cover member may be fixed to each other to form a closed cross-sectional shape.

According to this, since the rigidity of the module bracket can be improved, the mounting rigidity of the airbag module can be improved. This makes it possible to stabilize the posture of the airbag module.

The side airbag device includes a first force cloth that regulates the deployment direction of the airbag and a first attachment wire to which the first force cloth is attached, and a part of the first attachment wire is. It may be configured to be arranged between the module fixing portion and the plate-shaped portion.

According to this, the first mounting wire can be arranged compactly while effectively utilizing the space between the module fixing portion and the plate-shaped portion, so that it is possible to suppress the increase in size of the side airbag device. can.

In the side airbag device described above, the first mounting wire may be configured to be arranged at a position different from the tip portion of the bolt when viewed from the left-right direction.

According to this, since the first mounting wire and the tip of the bolt can be arranged at the same position in the left-right direction, the first mounting wire can be arranged compactly. As a result, it is possible to suppress the increase in size of the side airbag device.

In the side airbag device described above, the first force cloth may be configured to be arranged at a position different from the tip portion of the bolt when viewed from the left-right direction.

According to this, it is possible to prevent the first force cloth from coming into contact with the tip of the bolt which is the fixing point of the airbag module.

The side airbag device described above includes a fixing wire to which the first mounting wire is attached, and a part of the fixing wire may be arranged between the module fixing portion and the plate-shaped portion. can.

According to this, since the fixing wire can be arranged compactly while effectively utilizing the space between the module fixing portion and the plate-shaped portion, it is possible to suppress the increase in size of the side airbag device.

The side airbag device is arranged on the side opposite to the first force cloth of the airbag module in the left-right direction, and the second force cloth that regulates the deployment direction of the airbag and the second force cloth are The fixing wire comprises a second mounting wire to be attached, the fixing wire having a wire mounting portion extending up and down, and a fixed portion fixed to the module bracket or the cover member, and the first mounting wire is a fixed portion. It is provided at the end of the vertically extending first force cloth mounting portion to which the first force cloth is attached and the portion extending from the end of the first force cloth mounting portion, and is curved to engage with the wire mounting portion. The second mounting wire has a first curved portion, and the second mounting wire has a second force cloth mounting portion extending vertically to which the second force cloth is mounted, and an end of a portion extending from the end of the second force cloth mounting portion. The portion is provided with a second curved portion that is curved and engages with the wire mounting portion, and the first curved portion and the second curved portion are configured such that the ends thereof are hooked on each other. Can be done.

According to this, since the rotation of the mounting wire can be restricted, it is possible to prevent the force cloth from unnecessarily sagging. This makes it possible to stabilize the deployment of the airbag.

The side airbag device may include a skin member constituting the outer surface of the side airbag device, and the plate-shaped portion may have a skin fixing hole to which an end portion of the skin member is fixed. can.

According to this, as compared with the case where the portion to which the skin member is fixed is provided separately from the plate-shaped portion, the parts constituting the side airbag device such as the cover member can be made simpler, and the size of the side airbag device can be increased. It is possible to suppress the change.

In the side airbag device described above, the cover member is a vehicle body mounting bracket fixed to the vehicle body, and may be configured to have a bracket fixing portion to which the module bracket is fixed.

According to this, since the airbag module can be firmly fixed to the vehicle body via the bracket, the posture of the airbag module can be stabilized.

In the side airbag device described above, the cover member may be configured to be a vehicle body mounting bracket fixed to the vehicle body with the module bracket sandwiched between the cover member and the vehicle body.

According to this, since the module bracket can be firmly fixed to the vehicle body, the airbag module can be firmly fixed to the vehicle body via the module bracket. This makes it possible to stabilize the posture of the airbag module.

According to the present invention, the posture of the airbag module can be stabilized.

Further, by arranging the plate-shaped portion at a distance from the tip portion of the bolt, the posture of the airbag module can be stabilized.

Further, the module bracket and the cover member are fixed to each other to form a closed cross-sectional shape, so that the posture of the airbag module can be stabilized.

Further, by arranging a part of the first mounting wire between the module fixing portion and the plate-shaped portion, it is possible to suppress the increase in size of the side airbag device.

Further, by arranging the first mounting wire at a position different from the tip of the bolt when viewed from the left-right direction, it is possible to suppress the increase in size of the side airbag device.

Further, by arranging the first force cloth at a position different from the tip of the bolt when viewed from the left and right direction, it is possible to prevent the first force cloth from coming into contact with the fixed portion of the airbag module.

Further, by arranging a part of the fixing wire between the module fixing portion and the plate-shaped portion, it is possible to suppress the increase in size of the side airbag device.

Further, by configuring the ends of the first curved portion of the first mounting wire and the second curved portion of the second mounting wire to be hooked on each other, the deployment of the airbag can be stabilized.

In addition, by providing a skin fixing hole in the plate-shaped part to fix the end of the skin member, the parts constituting the side airbag device can be simplified and the size of the side airbag device can be suppressed. be able to.

Further, since the cover member is a vehicle body mounting bracket and has a bracket fixing portion, the posture of the airbag module can be stabilized.

Further, since the cover member is a vehicle body mounting bracket that is fixed to the vehicle body with the module bracket sandwiched between the cover member and the vehicle body, the posture of the airbag module can be stabilized.

It is the figure which looked at the vehicle which provided the side airbag device from the inside of a vehicle. It is the figure (a) which looked at the side panel of a car body from the car interior side, and the figure (b) which looked at the striker and the base bracket from above. It is a perspective view of the side airbag device. It is a cross-sectional view of the side airbag device. It is an exploded perspective view of the side airbag device. It is a side view which looked at the side airbag device from the vehicle interior side. It is a vertical sectional view of the side airbag device. It is a perspective view of the 1st mounting wire, the 2nd mounting wire and a fixing wire. It is a figure explaining the process of fixing a module bracket to a vehicle body mounting bracket.

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 the present embodiment is applied to the rear seat of an automobile, and is arranged between the seat S and the side wall BS of the vehicle body. Further, 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 back and forth around the 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 seat back S2. Therefore, when the seat back S2 is tilted forward, the side airbag device 1 is exposed while remaining on the side wall BS. When the seat back 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 seat back S2. Therefore, the side airbag device 1 is apparently a part of the seat back S2 when the normal seat S is used.

In the present embodiment, the side airbag device 1 arranged on the left side of the vehicle body (left side of the seat S) will be described, but the side airbag device having a symmetrical configuration may also be provided on the right side of the vehicle body. can. Further, in the present embodiment, unless otherwise specified, the inside and outside 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 left and right center of the vehicle body is the inside, and the side far from the left and right center of the vehicle body is the outside. Further, the front and back and the top and bottom are based on the sheet S unless otherwise specified.

As shown in FIG. 2A, the vehicle body has a side panel 300. The side panel 300 is made of metal and has a side wall portion 310 that constitutes the side wall BS, a wheel house 320 that bulges inward from the side wall portion 310 to the left and right, and a striker installation portion 330.

The wheel house 320 is a portion for accommodating the tire T. An airbag mounting bracket 340 is fixed to a position corresponding to the upper part of the tire T of the wheel house 320 by welding or the like. 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. 5, the airbag mounting bracket 340 has a hole 341 through which the bolt 93B is inserted. Further, the airbag mounting bracket 340 has nuts 93N welded to the left and right outer surfaces.

Returning to FIG. 2A, the striker installation portion 330 is a portion for securing the installation surface of 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 protruding inward from the side panel 300 to the left and right, and is made of metal. The seat back S2 of the seat S has a latch mechanism (not shown) that can be engaged with the striker 350, and is raised from the state of being tilted forward and locked to the upright state by the latch mechanism engaging with the striker 350. Will be done.

The striker 350 is fixed to the striker installation portion 330 of the vehicle body via the base bracket 360. The base bracket 360 is made of a metal plate, and has a base portion 361 attached to the striker installation portion 330, a connection portion 362 extending inward from the front end of the base portion 361, and air extending forward from the left and right inner ends of the connection portion 362. It has a bag fixing portion 363. Bolts 92B are fixed to the airbag fixing portion 363 by welding so as to project inward on the left and right sides. The striker 350 is fixed to the base portion 361 by welding or the like. The base bracket 360 is fixed to the striker installation portion 330 by a plurality of bolts 364.

As shown in FIGS. 3 and 4, the side airbag device 1 includes an airbag module 10, a module bracket 100 as a bracket, a vehicle body mounting bracket 200, a wire frame 20, a first force cloth 31, and a second. It includes a force cloth 32, a first mounting wire 40, a second mounting wire 50, a fixing wire 60, a cushion pad 70, and a skin member 80.

As shown in FIG. 4, the airbag module 10 has an airbag 11 and an inflator 12.
The airbag 11 is a bag-shaped member, and is normally housed in the side airbag device 1 in a folded state. The airbag 11 expands when gas is supplied to the inside in the event of a vehicle collision or the like, and expands to the left and right outside of the occupant sitting on the seat S.

The inflator 12 is a member that supplies gas into the airbag 11. The inflator 12 has a columnar inflator main body 12A and a bolt 12B provided so as to project from the inflator main body 12A. A plurality of bolts 12B are provided along the axis of the inflator main body 12A, and in the present embodiment, two bolts 12B are provided side by side (see FIG. 5). Each bolt 12B is fixed to the inflator body 12A so as to face the axial center of the inflator body 12A.

As shown in FIG. 5, the module bracket 100 is a member to which the airbag module 10 is fixed and is fixed to the vehicle body, and is made of a metal plate. The module bracket 100 has a main body portion 110 and an extension portion 120 extending from the main body portion 110.
The main body 110 has a module fixing portion 111, a lower vehicle body fixing portion 112 as a first vehicle body fixing portion, a tongue portion 113 as a first fixing portion, a second fixing portion 114, and a harness holding portion 115. are doing.

The module fixing portion 111 is a portion to which the airbag module 10 is fixed, and has two holes 111A (see FIG. 7) arranged one above the other. The airbag module 10 is fixed to the module fixing portion 111 by inserting the bolt 12B of the inflator 12 into the hole 111A and fastening the nut 12N to the bolt 12B. In other words, the airbag module 10 is fixed to the module bracket 100 with the bolt 12B penetrating.

The lower vehicle body fixing portion 112 is a portion fixed to the vehicle body. Specifically, the lower vehicle body fixing portion 112 is a portion fixed to the airbag mounting bracket 340 provided on the vehicle body. The lower vehicle body fixing portion 112 is below the upper vehicle body fixing portion 121 described later of the extending portion 120, and is arranged at the rear portion of the module bracket 100. The lower vehicle body fixing portion 112 bulges inward from the rear portion of the lower end portion of the main body portion 110 to the left and right. The lower vehicle body fixing portion 112 has a hole 112A through which the bolt 93B is inserted.

The tongue portion 113 is a portion fixed to the vehicle body mounting bracket 200. The tongue portion 113 has a plate shape and protrudes from the peripheral edge portion of the module bracket 100. Specifically, the tongue portion 113 projects from the lower end of the lower vehicle body fixing portion 112 and extends in a direction away from the second fixing portion 114, specifically, downward. The tongue portion 113 has a base end portion 113A protruding downward from the lower end of the lower vehicle body fixing portion 112, an intermediate portion 113B extending diagonally downward on the left and right inside from the lower end of the base end portion 113A, and a lower portion downward from the lower end of the intermediate portion 113B. It has an extending tip portion 113C.

The second fixing portion 114 is a portion fixed to the vehicle body mounting bracket 200, similarly to the tongue portion 113. The second fixing portion 114 is fixed to the vehicle body mounting bracket 200 by a bolt 91B as a fixing member. The main body portion 110 has a first connecting portion 116 extending diagonally upward on the left and right inside from the upper end of the module fixing portion 111, and the second fixing portion 114 extends upward from the upper end of the first connecting portion 116. .. The second fixing portion 114 has a hole 114A in which the bolt 91B is inserted at the front end portion.

As shown in FIG. 6, the tongue portion 113 and the second fixing portion 114 are arranged at different positions from the airbag module 10 when viewed from the left-right direction. Specifically, the tongue portion 113 is arranged behind the lower part of the airbag module 10, and the second fixing portion 114 is arranged on the airbag module 10. Further, when viewed from the left-right direction, the tongue portion 113 is arranged below the module fixing portion 111 to which the airbag module 10 is fixed, and the second fixing portion 114 is arranged above the module fixing portion 111. As a result, the module fixing portion 111 is arranged between the tongue portion 113 and the second fixing portion 114.

Returning to FIG. 5, the harness holding portion 115 is a portion to which a harness (not shown) connected to the inflator 12 is fastened. The main body 110 has a second connecting portion 117 extending outward from the rear end of the second fixing portion 114, and the harness holding portion 115 extends rearward from the left and right outer ends of the second connecting portion 117. There is. The harness holding portion 115 has a hole 115A to which a clip member (not shown) that holds the harness is engaged.

The extending portion 120 is provided on the front portion of the module bracket 100. Specifically, the extending portion 120 extends upward from the front portion of the upper end of the second fixing portion 114 constituting the main body portion 110. The extending portion 120 has an upper vehicle body fixing portion 121 extending upward from the front portion of the upper end of the second fixing portion 114, and a bracket upper end portion 122 extending outward from the upper end of the upper vehicle body fixing portion 121 to the left and right.

The upper vehicle body fixing portion 121 is a portion fixed to the vehicle body like the lower vehicle body fixing portion 112. Specifically, the upper vehicle body fixing portion 121 is a portion fixed to the base bracket 360 provided on the vehicle body. The upper vehicle body fixing portion 121 is above the airbag module 10 and is arranged at the front portion of the module bracket 100. The upper vehicle body fixing portion 121 has a hole 121A through which the bolt 92B is inserted near the central portion in the vertical direction. As shown in FIG. 6, the upper vehicle body fixing portion 121 is arranged on the airbag module 10 when viewed from the left-right direction. On the other hand, the lower vehicle body fixing portion 112 is arranged behind the lower portion of the airbag module 10. As a result, the airbag module 10 is arranged between the upper vehicle body fixing portion 121 and the lower vehicle body fixing portion 112.

The module bracket 100 has a notch 150 as a relief portion. The notch 150 is a portion where the striker 350 provided on the vehicle body is arranged when the side airbag device 1 is attached to the vehicle body. The notch 150 is provided on the rear side of the upper end portion of the module bracket 100. Specifically, the notch 150 is formed by an upper edge portion of the main body portion 110 and a trailing edge portion of the extending portion 120. The airbag module 10 is located below the notch 150.

As shown in FIG. 5, the vehicle body mounting bracket 200 is a member in which the airbag module 10 is fixed via the module bracket 100 and is fixed to the vehicle body, and is made of a metal plate. The vehicle body mounting bracket 200 is fixed to the vehicle body with the module bracket 100 sandwiched between the airbag mounting bracket 340 and the base bracket 360 provided on the vehicle body. The vehicle body mounting bracket 200 is an example of a cover member. The vehicle body mounting bracket 200 has a main body portion 210 as a plate-shaped portion, a first extending portion 220 as an extending portion, a second extending portion 230, and a third extending portion 240.

The main body 210 is a portion that is arranged to face the module fixing portion 111 of the module bracket 100 and covers the tip of the bolt 12B. Specifically, the main body portion 210 is arranged so as to face the left and right inside of the module fixing portion 111. The main body 210 has a second bracket fixing portion 211 and a skin fixing hole 212.

The second bracket fixing portion 211 is a portion to which the module bracket 100 is fixed. The second bracket fixing portion 211 is provided at the front end portion of the upper portion of the main body portion 210, and bulges outward to the left and right. The second bracket fixing portion 211 has a hole 211A through which the bolt 91B is inserted. The nut 91N is welded to the left and right inner surfaces of the second bracket fixing portion 211. The skin fixing hole 212 is a substantially rectangular through hole that is long in the vertical direction to which the end portion 81 (see FIG. 4) of the skin member 80 is fixed, and is arranged at a position toward the rear of the lower part of the main body portion 210.

The first extending portion 220 is provided on the front portion of the vehicle body mounting bracket 200. Specifically, the first extending portion 220 extends upward from the front portion of the upper end of the main body portion 210. The first extending portion 220 includes a lower inclined portion 221 extending diagonally upward from the upper end of the main body portion 210 to the left and right outside, an upper vehicle body fixing portion 222 extending upward from the upper end of the lower inclined portion 221, and an upper vehicle body fixing portion 222. It has an upper inclined portion 223 (see FIG. 7) extending diagonally upward from the upper end to the left and right inside, and an upper wire fixing portion 224 extending upward from the upper end of the upper inclined portion 223.

The upper vehicle body fixing portion 222 is a portion fixed to the vehicle body. Specifically, the upper vehicle body fixing portion 222 is a portion fixed to the base bracket 360 provided on the vehicle body. The upper vehicle body fixing portion 222 is above the airbag module 10 and is arranged at the front portion of the vehicle body mounting bracket 200. The upper vehicle body fixing portion 121 has a hole 222A through which the bolt 92B is inserted near the central portion in the vertical direction.

The second extending portion 230 is provided at the rear portion of the vehicle body mounting bracket 200. Specifically, the second extending portion 230 extends downward from the rear portion of the lower end of the main body portion 210. The second extending portion 230 has an inclined portion 231 extending diagonally downward on the left and right outside from the lower end of the main body portion 210, and a fixing portion 232 extending downward from the lower end of the inclined portion 231. The fixing portion 232 has a lower vehicle body fixing portion 233 and a first bracket fixing portion 234.

The lower vehicle body fixing portion 233 is a portion fixed to the vehicle body, similarly to the upper vehicle body fixing portion 222. Specifically, the lower vehicle body fixing portion 233 is a portion fixed to the airbag mounting bracket 340 provided on the vehicle body. The lower vehicle body fixing portion 233 is below the upper vehicle body fixing portion 222 and is arranged at the rear portion of the vehicle body mounting bracket 200. The lower vehicle body fixing portion 233 has a hole 233A through which the bolt 93B is inserted. The lower vehicle body fixing portion 233 and the upper vehicle body fixing portion 222 are examples of the second vehicle body fixing portion. As shown in FIG. 6, when viewed from the left-right direction, the lower vehicle body fixing portion 233 is arranged behind the lower portion of the airbag module 10. On the other hand, the upper vehicle body fixing portion 222 is arranged on the airbag module 10. As a result, the airbag module 10 is arranged between the upper vehicle body fixing portion 222 and the lower vehicle body fixing portion 233.

Returning to FIG. 5, the first bracket fixing portion 234 is a portion where the tongue portion 113 of the module bracket 100 is fixed. The first bracket fixing portion 234 has a substantially rectangular engaging hole 234A to which the tongue portion 113 engages. The front-back length of the engagement hole 234A is substantially equal to the width (front-back length) of the tongue portion 113. Thereby, the first bracket fixing portion 234 can restrict the movement of the tongue portion 113 engaged with the engaging hole 234A in the width direction at the peripheral edge portion of the engaging hole 234A.

As shown in FIG. 7, the tongue portion 113 engaged with the engaging hole 234A is fixed in a state of being hooked on the first bracket fixing portion 234 of the vehicle body mounting bracket 200. Further, the tip portion 113C of the tongue portion 113 is located on the side opposite to the airbag module 10 of the first bracket fixing portion 234, specifically, on the left and right inside, and the engaging hole of the first bracket fixing portion 234. It engages a portion around the 234A, specifically the lower portion of the engagement hole 234A.

As shown in FIG. 6, the first bracket fixing portion 234 is arranged at a position different from that of the upper vehicle body fixing portion 222 and the lower vehicle body fixing portion 233 when viewed from the left-right direction. Specifically, the first bracket fixing portion 234 is arranged below the upper vehicle body fixing portion 222 and the lower vehicle body fixing portion 233. Further explaining, the first bracket fixing portion 234 is arranged below the lower vehicle body fixing portion 233. Therefore, in the first bracket fixing portion 234, the engaging hole 234A is arranged below the lower vehicle body fixing portion 233. The first bracket fixing portion 234 and the second bracket fixing portion 211 are examples of the bracket fixing portion.

As shown in FIG. 5, the third extension portion 240 is provided on the front portion of the vehicle body mounting bracket 200. Specifically, the third extending portion 240 extends downward from the front portion of the lower end of the main body portion 210. That is, the third extension portion 240 is provided in front of the second extension portion 230. The third extending portion 240 has an extending portion 241 extending downward from the lower end of the main body portion 210, and a bracket lower end portion 242 extending outward from the lower end of the extending portion 241 to the left and right.

Returning to FIG. 6, the vehicle body mounting bracket 200 has a notch 250 as a relief portion, similarly to the module bracket 100. The notch 250 is a portion where the striker 350 provided on the vehicle body is arranged when the side airbag device 1 is attached to the vehicle body. The notch 250 is provided on the rear side of the upper end portion of the vehicle body mounting bracket 200. Specifically, the notch 250 is formed by an upper edge portion of the main body portion 210 and a trailing edge portion of the first extending portion 220. The airbag module 10 is located below the notch 250.

As shown in FIG. 7, the module bracket 100 and the vehicle body mounting bracket 200 are fixed to each other to form a closed cross-sectional shape. Specifically, when viewed from the front-rear direction, the module bracket 100 has a position in which the module fixing portion 111 is displaced outward to the left and right with respect to the lower vehicle body fixing portion 112 in which the tongue portion 113 is provided and the second fixing portion 114. Is located in. On the other hand, in the vehicle body mounting bracket 200, the main body 210 is arranged at a position shifted inward to the left and right with respect to the first bracket fixing portion 234 and the second bracket fixing portion 211. Then, the tongue portion 113 engages with the engagement hole 234A and is fixed to the first bracket fixing portion 234, and the second fixing portion 114 is fixed to the second bracket fixing portion 211 by fastening the bolt 91B and the nut 91N. Therefore, a space is formed between the module fixing portion 111 and the main body portion 210. The main body 210 is arranged at a distance from the tip of the bolt 12B of the inflator 12 (see FIG. 4) to the left and right.

As shown in FIG. 3, the wire frame 20 is a member that constitutes the frame of the side airbag device 1 together with the vehicle body mounting bracket 200, and is made of metal. A vehicle body mounting bracket 200 is fixed to the wire frame 20. Further, the module bracket 100 is fixed to the wire frame 20 via the vehicle body mounting bracket 200. The wire frame 20 is configured by joining the first wire 21, the second wire 22, and the third wire 23 by welding or the like. In the drawings to be referred to, dot hatching is attached to the welded portion. Further, in the present embodiment, the wire frame 20 is composed of three wires 21 to 23, but the present invention is not limited to this, and the number of wires constituting the wire frame 20 may be one. It may be three or more.

The first wire 21 includes a frame portion 21A formed along the contours of the front left and right outer sides of the side airbag device 1, the upper left and right outer sides and the rear side, and the rear left and right inner sides, and one end of the frame portion 21A. It has a facing portion 21B extending forward from (upper end) and a connecting portion 21C extending downward from the front end of the facing portion 21B. The lower end of the connecting portion 21C is bent and extends rearward, and is fixed to the main body portion 210 of the vehicle body mounting bracket 200 (above the second bracket fixing portion 211) by welding. The second wire 22 is formed along the left and right inner contours of the front portion and the upper portion of the side airbag device 1. The upper end of the second wire 22 is fixed to the first wire 21 by welding, and the lower end is fixed to the main body 210 (above the third extending portion 240) by welding. The third wire 23 is formed along the front contour of the upper portion of the side airbag device 1, and the left and right ends are fixed to the first wire 21 or the second wire 22 by welding to the first wire 21. The upper parts of the second wire 22 are connected to each other.

The front end portion of the facing portion 21B of the first wire 21 is fixed to the upper wire fixing portion 224 of the first extending portion 220 by welding. As a result, the facing portion 21B is arranged so that the portion behind the front end portion fixed to the upper wire fixing portion 224 extends rearward from the first extending portion 220. Further, the facing portion 21B is arranged so as to face the main body portion 210 in the direction in which the first extending portion 220 extends, specifically, vertically and vertically. As a result, when the side airbag device 1 is attached to the vehicle body, the striker 350 is arranged between the facing portion 21B and the main body portion 210, as shown in FIG. The facing portion 21B is also arranged so as to extend rearward from the extending portion 120 of the module bracket 100. Further, the facing portion 21B is also arranged so as to face the main body portion 110 of the module bracket 100 in the vertical direction (direction in which the extending portion 120 extends). Therefore, when the side airbag device 1 is attached to the vehicle body, the striker 350 is arranged between the facing portion 21B and the main body portion 110.

As shown in FIG. 4, the first force cloth 31 and the second force cloth 32 are members that regulate the deployment direction of the airbag 11 when the airbag 11 is deployed. The front end of the first force cloth 31 passes through the front side of the airbag module 10 and is coupled to the skin member 80. On the other hand, the second force cloth 32 is arranged on the side opposite to the first force cloth 31 of the airbag module 10 in the left-right direction. Specifically, the front end portion of the second force cloth 32 passes through the rear side and the left and right outer sides of the airbag module 10 and is coupled to the skin member 80. The first force cloth 31 and the second force cloth 32 have the front end portion bonded to the skin member 80 so as to assist the dehiscence of the front part of the cushion pad 70 when the airbag 11 is deployed. Also works. The first force cloth 31 and the second force cloth 32 each have ring portions 31A and 32A that open up and down at the rear end portions.

As shown in FIG. 8, the first mounting wire 40 is a member to which the first force cloth 31 is attached, and the second attachment wire 50 is a member to which the second force cloth 32 is attached. Further, the fixing wire 60 is a member to which the first mounting wire 40 and the second mounting wire 50 are mounted. The first mounting wire 40, the second mounting wire 50, and the fixing wire 60 are made of metal.

The fixing wire 60 includes a wire mounting portion 61 extending vertically, a pair of connecting portions 62 extending forward from the upper and lower ends of the wire mounting portion 61, and a pair of connecting portions 62 extending vertically from each front end of each connecting portion 62 so as to approach each other. It has a fixed portion 63.
The wire mounting portion 61 has two upper and lower wire engaging portions 61A that are bent so that the portions of the mounting wires 40, 50 to which the curved portions 44, 54, which will be described later, engage with each other are convex toward the front.
As shown in FIG. 5, the pair of fixed portions 63 are fixed to the rear end portions of the left and right inner surfaces of the module fixing portion 111 of the module bracket 100 by welding. As a result, the pair of fixed portions 63, which are a part of the fixing wire 60, are arranged between the module fixing portion 111 and the main body portion 210 of the vehicle body mounting bracket 200.

Returning to FIG. 8, the first mounting wire 40 includes a first force cloth mounting portion 41 extending vertically, a first upper extending portion 42 extending rearward from the upper end of the first force cloth mounting portion 41, and the like. It has a first lower extending portion 43 which is a portion extending rearward from the lower end of the first force cloth mounting portion 41.
The first force cloth mounting portion 41 is a portion to which the first force cloth 31 is attached. The first force cloth 31 is a first attachment wire by inserting the ring portion 31A from the tip of the first upper extension portion 42 or the first lower extension portion 43 and arranging the ring portion 31A in the first force cloth attachment portion 41. Attached to 40.

A first curved portion 44 is provided at each of the rear end portions of the first upper extending portion 42 and the first lower extending portion 43. The first curved portion 44 is a portion that engages with the wire mounting portion 61 (wire engaging portion 61A) of the fixed wire 60, and is curved so as to be convex rearward. Each end 44A of each first bending 44 bends and extends up and down so as to approach each other. In the present embodiment, the portion of the first upper extension portion 42 on the front side of the first curved portion 44 extends straight rearward from the upper end of the first force cloth mounting portion 41, but the first lower extension portion 42 is extended. The portion of the portion 43 on the front side of the first curved portion 44 extends diagonally upward and rearward from the lower end of the first force cloth mounting portion 41, and then bends and extends rearward. As a result, the upper and lower lengths of the first force cloth mounting portion 41 can be secured while the portion attached to the fixing wire 60 has a compact structure, so that the upper and lower lengths of the first force cloth 31 can be secured. The first force cloth 31 can satisfactorily regulate the deployment direction of the airbag 11.

As shown in FIG. 5, a part of the first mounting wire 40 is arranged between the module fixing portion 111 of the module bracket 100 and the main body portion 210 of the vehicle body mounting bracket 200. Specifically, in the first mounting wire 40, the first upper extending portion 42 and the first lower extending portion 43 are arranged between the module fixing portion 111 and the main body portion 210. Further, as shown in FIG. 6, the first mounting wire 40 is arranged at a position different from the tip end portion of the bolt 12B of the inflator 12 when viewed from the left-right direction. Specifically, the first force cloth mounting portion 41 is arranged in front of the bolt 12B, more specifically, in front of the module fixing portion 111. Further, the first upper extension portion 42 is arranged above the bolt 12B, and the first lower extension portion 43 is arranged between the upper and lower bolts 12B.

The first force cloth 31 is attached to the first force cloth attachment portion 41 arranged before the module fixing portion 111. Therefore, the first force cloth 31 is arranged at a position different from the tip end portion of the bolt 12B when viewed from the left-right direction. Specifically, the first force cloth 31 is arranged before the bolt 12B, and more specifically, before the module fixing portion 111.

As shown in FIG. 8, the second mounting wire 50 has a second force cloth mounting portion 51 extending vertically and a second upper extending portion extending inward from the upper end of the second force cloth mounting portion 51. It has a 52 and a second lower extending portion 53 which is a portion extending inward from the lower end of the second force cloth mounting portion 51 to the left and right.
The second force cloth attachment portion 51 is a portion to which the second force cloth 32 is attached. The second force cloth 32 is a second attachment wire by inserting the ring portion 32A from the tip of the second upper extension portion 52 or the second lower extension portion 53 and arranging the ring portion 32A in the second force cloth attachment portion 51. Attached to 50.

A second curved portion 54 is provided at each of the left and right inner ends of the second upper extending portion 52 and the second lower extending portion 53. The second curved portion 54 is a portion that engages with the wire mounting portion 61 (wire engaging portion 61A) of the fixed wire 60, and is curved so as to be convex inward on the left and right. The end portion 54A of the second curved portion 54 is bent and extends forward. In addition, in this embodiment, the portion on the left and right outer sides of the second curved portion 54 of the second upper extending portion 52 and the second lower extending portion 53 is the second force cloth from the end of the second force cloth mounting portion 51. The mounting portion 51 is curved inward (downward or upward) in the vertical direction and extends vertically, and then is connected to the second curved portion 54. As a result, the upper and lower lengths of the second force cloth mounting portion 51 can be secured while the portion attached to the fixing wire 60 has a compact structure, so that the upper and lower lengths of the second force cloth 32 can be secured. The second force cloth 32 can satisfactorily regulate the deployment direction of the airbag 11.

The ends 44A and 54A are hooked on each other while the first curved portion 44 of the first mounting wire 40 and the second curved portion 54 of the second mounting wire 50 are engaged with the wire mounting portion 61 of the fixed wire 60. ing. Specifically, as shown in FIG. 4, the end portion 44A and the end portion 54A are in contact with each other in a state where the end portion 44A is located on the left and right inside and the end portion 54A is located on the left and right outside.

The cushion pad 70 is made of urethane foam or the like, and is integrally molded so as to cover the vehicle body mounting bracket 200 and the wire frame 20 constituting the frame of the side airbag device 1. The cushion pad 70 has a pad front portion 71, a pad upper portion 72 extending rearward from the upper end of the pad front portion 71 (see FIG. 3), and pad side portions 73 provided on the left and right inner sides. The pad front portion 71 is formed with vertically long slits 71A for deploying the airbag 11 forward.

As shown in FIG. 3, the pad side portion 73 has a recess 1A and a notch 1B.
The recess 1A is an opening portion for exposing the upper vehicle body fixing portion 222 of the vehicle body mounting bracket 200, and is formed at a position corresponding to the upper vehicle body fixing portion 222. The recess 1A is open to the left, right, and rear. When the side airbag device 1 is attached to the vehicle body, the striker 350 (see FIG. 2) is arranged in the recess 1A.
The cutout portion 1B is an opening portion for exposing the lower vehicle body fixing portion 233 of the vehicle body mounting bracket 200, and is formed at a position corresponding to the lower vehicle body fixing portion 233.

As shown in FIG. 4, the skin member 80 is a member constituting the outer surface of the side airbag device 1, and is made of cloth, leather, or the like. The skin member 80 has a shape that covers the vehicle body mounting bracket 200, the wire frame 20, and the cushion pad 70 from the front side, the upper side, and the left and right inside. The skin member 80 has a hook member 82 attached to an end portion 81 of a portion covering the left and right inside of the cushion pad 70, and the hook member 82 is engaged with the skin fixing hole 212 of the vehicle body mounting bracket 200 from the left and right outside. The end 81 is fixed to the vehicle body mounting bracket 200. Further, the skin member 80 is formed with a fragile portion 83 for deploying the airbag 11 forward at a position corresponding to the slit 71A of the cushion pad 70. The fragile portion 83 can be formed, for example, by sewing a slit provided in the skin member 80.

Next, an example of a method of manufacturing the side airbag device 1 and a method of attaching the side airbag device 1 to the vehicle body will be described.
As shown in FIG. 5, first, the vehicle body mounting bracket 200 and the wire frame 20 are fixed by welding. Next, the vehicle body mounting bracket 200 and the wire frame 20 are arranged in a mold (not shown), and the cushion pad 70 is integrally molded with the vehicle body mounting bracket 200 and the wire frame 20 as shown in FIG.

Next, the front end portions of the first force cloth 31 and the second force cloth 32 are connected to the skin member 80. Then, the skin member 80 is put on the vehicle body mounting bracket 200, the wire frame 20, and the cushion pad 70, and the skin member 80 is fixed to the vehicle body mounting bracket 200. Specifically, the hook member 82 attached to the end 81 of the skin member 80 is hooked on the skin fixing hole 212 of the vehicle body mounting bracket 200.

Returning to FIG. 5, the fixing wire 60 is then fixed to the module bracket 100. Specifically, the pair of fixed portions 63 are fixed to the rear end portions of the left and right inner surfaces of the module fixing portion 111 by welding. Next, the airbag module 10 is fixed to the module bracket 100. Specifically, the bolt 12B of the inflator 12 is inserted into the hole 111A (see FIG. 7) of the module fixing portion 111 from the left and right outside, and the nut 12N is fastened to the bolt 12B from the left and right inside of the module fixing portion 111.

Next, the module bracket 100 is fixed to the vehicle body mounting bracket 200. Specifically, as shown in FIG. 9, first, the tongue portion 113 is inserted into the engagement hole 234A from the tip portion 113C. Next, while turning the module bracket 100 inward to the left and right around the engagement hole 234A, the hole 114A provided in the second fixing portion 114 of the module bracket 100 and the second bracket fixing portion 211 of the vehicle body mounting bracket 200 Align the positions of the holes 211A provided in. Then, as shown in FIG. 7, the bolt 91B is inserted into the holes 114A and 211A from the left and right outside, and fastened to the nut 91N fixed to the left and right inner surfaces of the second bracket fixing portion 211.

Next, as shown in FIG. 8, the first attachment wire 40 is attached to the first force cloth 31 coupled to the skin member 80, and is attached to the fixing wire 60. Specifically, the first upper extension portion 42 or the first lower extension portion 43 is inserted into the ring portion 31A from the tip, and the first force cloth attachment portion 41 is arranged in a state of passing through the ring portion 31A. Then, each first curved portion 44 is engaged with each wire engaging portion 61A of the wire mounting portion 61.

Next, the second attachment wire 50 is attached to the second force cloth 32 coupled to the skin member 80, and is attached to the fixing wire 60. Specifically, the second upper extension portion 52 or the second lower extension portion 53 is inserted into the ring portion 32A from the tip, and the second force cloth attachment portion 51 is arranged in a state of passing through the ring portion 32A. Then, each second curved portion 54 is engaged with each wire engaging portion 61A of the wire mounting portion 61, and each end portion 54A of each second curved portion 54 is attached to the corresponding first mounting wire 40 of the first mounting wire 40. Engage with the end 44A of the bend 44.

By the above steps, the side airbag device 1 can be manufactured. The above steps may be performed by changing the order as appropriate.

When the side airbag device 1 is attached to the vehicle body, first, as shown in FIG. 2, the airbag attachment bracket 340 and the base bracket 360 to which the striker 350 is fixed are fixed to the side panel 300. Then, as shown in FIG. 5, the hole 121A provided in the upper vehicle body fixing portion 121 of the module bracket 100 and the hole 222A provided in the upper vehicle body fixing portion 222 of the vehicle body mounting bracket 200 are fixed to the base bracket 360. Insert it into the bolt 92B from the left and right inside.

Further, the positions of the holes 233A provided in the lower vehicle body fixing portion 233 of the vehicle body mounting bracket 200 and the holes 112A provided in the lower vehicle body fixing portion 112 of the module bracket 100 are aligned with the holes 341 of the airbag mounting bracket 340. Then, the nut 92N is fastened to the bolt 92B of the base bracket 360, and the bolt 93B is inserted into the holes 233A, 112A, 341 from the left and right inside and fastened to the nut 93N fixed to the left and right outer surfaces of the airbag mounting bracket 340. do.
By the above steps, the side airbag device 1 can be attached to the vehicle body.

According to the present embodiment described above, the module bracket 100 can be fixed to the vehicle body mounting bracket 200 by hooking the tongue portion 113 as the first fixing portion on the vehicle body mounting bracket 200. As a result, the assembly work of the side airbag device 1 can be easily performed.

Further, since the tongue portion 113 and the second fixing portion 114 are arranged at positions different from those of the airbag module 10 when viewed from the left-right direction, it is possible to easily check the catching condition of the tongue portion 113. Further, the second fixing portion 114 can be easily fixed, that is, the bolt 91B and the nut 91N can be fastened. As a result, the assembly work of the side airbag device 1 can be easily performed.

Further, since the plate-shaped tongue portion 113 is adopted as the first fixing portion, the tongue portion 113 can be easily hooked on the vehicle body mounting bracket 200. As a result, the assembly work of the side airbag device 1 can be easily performed.

Further, since the tongue portion 113 extends downward, the tongue portion 113 is less likely to come off from the vehicle body mounting bracket 200 when the tongue portion 113 is hooked on the vehicle body mounting bracket 200. As a result, the engagement between the tongue portion 113 and the vehicle body mounting bracket 200 can function as a temporary fixing until the second fixing portion 114 is fixed to the vehicle body mounting bracket 200, so that the assembly work of the side airbag device 1 can be performed. Can be easily performed.

Further, since the movement of the tongue portion 113 in the width direction can be restricted by the peripheral edge portion of the engagement hole 234A, the module bracket 100 is suppressed from trying to rotate with respect to the vehicle body mounting bracket 200 about the bolt 91B. be able to. As a result, the posture of the airbag module 10 can be stabilized.

Further, since the tongue portion 113 protrudes from the lower vehicle body fixing portion 112, the tongue portion 113 can be arranged near the lower vehicle body fixing portion 112. As a result, the module bracket 100 can be firmly fixed to both the vehicle body and the vehicle body mounting bracket 200. As a result, the airbag module 10 can be firmly fixed to the vehicle body, so that the posture of the airbag module 10 can be stabilized.

Further, since the tip 113C of the tongue 113 is located on the opposite side of the airbag module 10 of the vehicle body mounting bracket 200 and engages with the portion around the engagement hole 234A, the tongue 113 is mounted on the vehicle body mounting bracket. The module bracket 100 is hard to come off when hooked on the 200. As a result, the airbag module 10 can be firmly fixed to the vehicle body, so that the posture of the airbag module 10 can be stabilized.

Further, since the first bracket fixing portion 234 is arranged at a position different from the upper vehicle body fixing portion 222 and the lower vehicle body fixing portion 233 when viewed from the left-right direction, the first bracket fixing portion is arranged at the upper vehicle body fixing portion 222 and the lower vehicle body fixing portion 233. Compared to the case where it is arranged at a position overlapping with the portion 233, for example, the first bracket fixing portion 234 and the lower vehicle body fixing portion 233 can be provided on the same surface, and is a component constituting the side airbag device 1. A certain vehicle body mounting bracket 200 can be configured in a simple manner. Further, since it is possible to suppress the increase in size of the vehicle body mounting bracket 200, the side airbag device 1 can be reduced in size in the left-right direction.

Further, since the module fixing portion 111 is arranged between the tongue portion 113 and the second fixing portion 114 when viewed from the left-right direction, the airbag module 10 is firmly fixed to the vehicle body mounting bracket 200 via the module bracket 100. be able to. As a result, the airbag module 10 can be firmly fixed to the vehicle body, so that the posture of the airbag module 10 can be stabilized.

Further, since the vehicle body mounting bracket 200 has a plate-shaped main body 210 that covers the tip of the bolt 12B of the inflator 12, the tip of the bolt 12B can be protected by the main body 210. As a result, it is possible to suppress unnecessary force from being applied to the fixed portion of the airbag module 10, so that the posture of the airbag module 10 can be stabilized.

Further, since the main body 210 is arranged at a distance from the tip of the bolt 12B, the main body 210 and the tip of the bolt 12B do not come into contact with each other. As a result, it is possible to suppress the force applied from the vehicle body mounting bracket 200 to the fixed portion of the airbag module 10, so that the posture of the airbag module 10 can be stabilized.

Further, since the module bracket 100 and the vehicle body mounting bracket 200 are fixed to each other to form a closed cross-sectional shape, the rigidity of the module bracket 100 can be improved. As a result, the mounting rigidity of the airbag module 10 can be improved, so that the posture of the airbag module 10 can be stabilized.

Further, since the first upper extension portion 42 and the first lower extension portion 43, which are a part of the first mounting wire 40, are arranged between the module fixing portion 111 and the main body portion 210, the module fixing portion 111 and the module fixing portion 111 are arranged. The first mounting wire 40 can be compactly arranged while effectively utilizing the space between the main body portion 210 and the main body portion 210. As a result, it is possible to suppress the increase in size of the side airbag device 1.

Further, since the first mounting wire 40 is arranged at a position different from the tip of the bolt 12B when viewed from the left-right direction, the first mounting wire 40 and the tip of the bolt 12B can be arranged at the same position in the left-right direction. can. As a result, the first mounting wire 40 can be arranged compactly, so that it is possible to suppress the increase in size of the side airbag device 1.

Further, since the first force cloth 31 is arranged at a position different from the tip portion of the bolt 12B when viewed from the left-right direction, the first force cloth 31 comes into contact with the tip portion of the bolt 12B which is the fixing point of the airbag module 10. Can be suppressed.

Further, since the wire mounting portion 61 of the fixing wire 60 is arranged between the module fixing portion 111 and the main body portion 210, the fixing wire can be effectively used while effectively utilizing the space between the module fixing portion 111 and the main body portion 210. The 60 can be arranged compactly. As a result, it is possible to suppress the increase in size of the side airbag device 1.

Further, since the ends 44A and 54A of the first curved portion 44 and the second curved portion 54 are caught on each other, the rotation of the mounting wires 40 and 50 can be restricted. Specifically, as shown in FIG. 4, the end portion 44A of the first curved portion 44 is caught by the end portion 54A of the second curved portion 54, thereby suppressing the rotation of the first mounting wire 40 in the counterclockwise direction shown in the drawing. be able to. Further, by catching the end portion 54A of the second curved portion 54 on the end portion 44A of the first curved portion 44, the clockwise rotation of the second mounting wire 50 can be suppressed. As a result, it is possible to prevent the first force cloth 31 and the second force cloth 32 from unnecessarily sagging, so that the deployment of the airbag 11 can be stabilized when the airbag 11 is deployed.

Further, since the end portion 81 of the skin member 80 is fixed to the main body portion 210, a side airbag device such as a vehicle body mounting bracket 200 is compared with a case where a portion to which the skin member 80 is fixed is provided separately from the main body portion 210. The parts constituting 1 can be made into a simple structure. Further, since it is possible to suppress the increase in size of the vehicle body mounting bracket 200, it is possible to suppress the increase in size of the side airbag device 1.

Further, since the member covering the tip of the bolt 12B is fixed to the vehicle body and the module bracket 100 is fixed to the vehicle body mounting bracket 200, the airbag module 10 is firmly attached to the vehicle body via the module bracket 100 and the vehicle body mounting bracket 200. Can be fixed with. As a result, the posture of the airbag module 10 can be stabilized.

Further, since the vehicle body mounting bracket 200 is fixed to the vehicle body with the module bracket 100 sandwiched between the vehicle body and the vehicle body, the module bracket 100 can be firmly fixed to the vehicle body. As a result, the airbag module 10 can be firmly fixed to the vehicle body via the module bracket 100, and the posture of the airbag module 10 can be stabilized.

Further, since the module bracket 100 and the vehicle body mounting bracket 200 have notches 150 and 250 as relief portions in which the striker 350 is arranged, the side airbag device 1 should be compactly arranged with respect to the vehicle body provided with the striker 350. Can be done.

Further, the side airbag device 1 can be compactly arranged with a simple configuration in which the notches 150 and 250 are provided in the module bracket 100 and the vehicle body mounting bracket 200.

Further, since the notch 150 of the module bracket 100 is formed by the main body portion 110 and the extension portion 120, and the notch 250 of the vehicle body mounting bracket 200 is formed by the main body portion 210 and the first extension portion 220, the notch is formed. Compared with the case where the portion and the portion to which the vehicle body is fixed are separately provided, the bracket, which is a component constituting the side airbag device 1, can be made a simple configuration. Further, since it is possible to suppress the increase in size of the module bracket 100 and the vehicle body mounting bracket 200, it is possible to suppress the increase in size of the side airbag device 1.

Further, since the striker 350 is arranged between the facing portion 21B of the wire frame 20 and the main body portions 110 and 210, the side airbag device 1 can be compactly arranged with respect to the vehicle body provided with the striker 350.

Further, since the extension portion 120 extends upward from the upper end of the main body portion 110 and the first extension portion 220 extends upward from the upper end of the main body portion 210, it is compared with the case where the extension portion extends back and forth. Therefore, it is possible to suppress the increase in size of the side airbag device 1 in the front-rear direction.

Further, since the module bracket 100 and the vehicle body mounting bracket 200 are fixed to the base bracket 360 together with the striker 350, the module bracket 100 and the vehicle body mounting bracket 200 can be fixed near the striker 350. As a result, the side airbag device 1 can be compactly arranged with respect to the vehicle body provided with the striker 350.

Further, since the airbag module 10 is arranged below the notches 150 and 250, the front-rear direction of the side airbag device 1 is compared with the case where the airbag module 10 is arranged before and after the notches 150 and 250. It is possible to suppress the increase in size.

Further, since the airbag module 10 is arranged between the upper vehicle body fixing portions 121 and 222 and the lower vehicle body fixing portions 112 and 233 when viewed from the left-right direction, the airbag module 10 can be firmly fixed to the vehicle body. .. As a result, the posture of the airbag module 10 can be stabilized.

Further, since the side airbag device 1 has the recess 1A in which the striker 350 is arranged, the side airbag device 1 can be compactly arranged with respect to the vehicle body provided with the striker 350.

Although one embodiment of the invention has been described above, the present invention is not limited to the above-described embodiment, and can be appropriately modified and carried out.
For example, in the above embodiment, the fixed portion 63 of the fixing wire 60 is fixed to the module bracket 100, but the fixed portion may be fixed to the vehicle body mounting bracket as a cover member.

Further, in the above-described embodiment, the tongue portion 113 extends downward, but for example, the tongue portion may be configured to extend forward, backward, upward, or the like. Further, in the above embodiment, the tongue portion 113 protrudes from the peripheral edge portion of the module bracket 100, but for example, the tongue portion may be provided by cutting out a part of the module bracket. Further, in the above embodiment, the tongue portion 113 is arranged near the lower vehicle body fixing portion 112 (first vehicle body fixing portion), but the tongue portion and the first vehicle body fixing portion may be arranged to some extent apart from each other. .. Further, in the above embodiment, the tongue portion 113 is configured to engage with the engagement hole 234A, but for example, the tongue portion may be configured to be hooked on the peripheral edge portion of the vehicle body mounting bracket. Further, in the above-described embodiment, the first fixing portion is a plate-shaped tongue portion 113, but the first fixing portion does not have to be a plate-shaped portion.

Further, the first vehicle body fixing portion and the second vehicle body fixing portion described in the above-described embodiment are examples, and these are not limited to the configuration of the above-described embodiment. For example, the arrangement and number of the first vehicle body fixing portion and the second vehicle body fixing portion may be changed. The same applies to the bracket fixing portion.

Further, in the above embodiment, the second fixing portion 114 is fixed to the vehicle body mounting bracket 200 by the bolt 91B. However, for example, a claw portion or the like is provided on the second fixing portion, and this claw portion is used as the vehicle body mounting bracket. The second fixing portion may be fixed to the vehicle body mounting bracket by engaging with. Further, in the above embodiment, the bolt 91B is exemplified as the fixing member, but for example, the fixing member may be a pin-shaped clip or the like.

Further, in the above-described embodiment, the striker 350 is fixed to the vehicle body via the base bracket 360, and the module bracket 100 and the vehicle body mounting bracket 200 are fixed to the base bracket 360. good. That is, for example, the module bracket 100 and the vehicle body mounting bracket 200 may be configured to be directly fixed to the side panel 300 including the striker installation portion 330.

Further, in the above-described embodiment, the relief portions in which the striker 350 is arranged are notches 150 and 250, but for example, the relief portions may be concave notches or pierced holes. good. Further, in the above-described embodiment, the side airbag device 1 is provided with recesses 1A opened to the left and right and rear as a portion where the striker 350 is arranged. For example, a portion where the striker of the side airbag device is arranged. May be a through hole or the like that is open only on the left and right sides.

Further, in the above embodiment, the module bracket 100 and the vehicle body mounting bracket 200 are exemplified as the brackets, but the number of brackets may be one. Further, in the above embodiment, the vehicle body mounting bracket 200 is exemplified as the cover member, but the cover member is a member having a plate-shaped portion that is arranged facing the module fixing portion and covers the tip portion of the bolt of the inflator. , It may be a member other than the vehicle body mounting bracket. Further, the cover member does not have to be a member directly fixed to the vehicle body.

Further, in the above-described embodiment, the example in which the side airbag device is applied to the rear seat of the automobile has been described, but for example, the side airbag device may be applied to the front seat of the automobile, the central seat of the three-row seat, or the like.

In addition, the elements described in the above-described embodiments and modifications can be combined and implemented as appropriate.

1 Side airbag device 10 Airbag module 11 Airbag 12 Inflator 12B Bolt 31 1st force cloth 32 2nd force cloth 40 1st mounting wire 41 1st force cloth mounting part 42 1st upper extension part 43 1st downward extension Protrusion 44 1st curved part 44A End part 50 2nd mounting wire 51 2nd force cloth mounting part 52 2nd upper extending part 53 2nd lower extending part 54 2nd curved part 54A End part 60 Fixed wire 61 Wire mounting Part 63 Fixed part 80 Skin member 81 End part 100 Module bracket 111 Module fixing part 200 Body mounting bracket 210 Main body part 211 Second bracket fixing part 212 Skin fixing hole

Claims (9)

An airbag module having an airbag and an inflator that supplies gas into the airbag,
A module bracket having a module fixing portion to which the airbag module is fixed in a state where the bolt of the inflator is penetrated, and
A cover member having a plate-shaped portion arranged facing the module fixing portion and covering the tip portion of the bolt, and a cover member.
The first force cloth that regulates the deployment direction of the airbag,
The first mounting wire to which the first force cloth is mounted and
A fixing wire to which the first mounting wire is attached is provided .
A part of the first mounting wire is arranged between the module fixing portion and the plate-shaped portion.
A side airbag device , wherein a part of the fixing wire is arranged between the module fixing portion and the plate-shaped portion . The side airbag device according to claim 1, wherein the plate-shaped portion is arranged at a distance from the tip end portion of the bolt. The side airbag device according to claim 1 or 2, wherein the module bracket and the cover member are fixed to each other to form a closed cross-sectional shape. The side airbag according to any one of claims 1 to 3, wherein the first mounting wire is arranged at a position different from the tip of the bolt when viewed from the left-right direction. Device. The side airbag according to any one of claims 1 to 4, wherein the first force cloth is arranged at a position different from the tip of the bolt when viewed from the left-right direction. Device. A second force cloth, which is arranged on the side opposite to the first force cloth of the airbag module in the left-right direction and regulates the deployment direction of the airbag,
A second mounting wire to which the second force cloth is mounted is provided.
The fixing wire has a wire mounting portion extending vertically and a fixed portion fixed to the module bracket or the cover member.
The first mounting wire is provided at a vertically extending first force cloth mounting portion on which the first force cloth is mounted and an end portion of a portion extending from the end of the first force cloth mounting portion, and is curved and said. It has a first curved portion that engages with the wire mounting portion, and has a first curved portion.
The second mounting wire is provided at an vertically extending second force cloth mounting portion on which the second force cloth is mounted and an end portion of a portion extending from the end of the second force cloth mounting portion, and is curved and said. It has a second curved portion that engages with the wire mounting portion, and has a second curved portion.
The side airbag device according to any one of claims 1 to 5, wherein the first curved portion and the second curved portion are hooked on each other. A skin member constituting the outer surface of the side airbag device is provided.
The side airbag device according to any one of claims 1 to 6 , wherein the plate-shaped portion has a skin fixing hole to which an end portion of the skin member is fixed. The side air according to any one of claims 1 to 7 , wherein the cover member is a vehicle body mounting bracket fixed to the vehicle body, and has a bracket fixing portion to which the module bracket is fixed. Bag device. The side according to any one of claims 1 to 8 , wherein the cover member is a vehicle body mounting bracket fixed to the vehicle body with the module bracket sandwiched between the vehicle body and the vehicle body. Airbag device.

Images