WO2016169643A1 - Front-kopf/rumpf-gassack - Google Patents
Front-kopf/rumpf-gassack Download PDFInfo
- Publication number
- WO2016169643A1 WO2016169643A1 PCT/EP2016/000627 EP2016000627W WO2016169643A1 WO 2016169643 A1 WO2016169643 A1 WO 2016169643A1 EP 2016000627 W EP2016000627 W EP 2016000627W WO 2016169643 A1 WO2016169643 A1 WO 2016169643A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- head
- baffle
- bulge
- gas bag
- trunk
- Prior art date
Links
- 230000002093 peripheral effect Effects 0.000 claims description 17
- 230000007704 transition Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000008093 supporting effect Effects 0.000 description 2
- 241001474495 Agrotis bigramma Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/0002—Type of accident
- B60R2021/0004—Frontal collision
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0044—Chest
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R2021/003—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks characterised by occupant or pedestian
- B60R2021/0039—Body parts of the occupant or pedestrian affected by the accident
- B60R2021/0048—Head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
- B60R2021/23308—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other the individual compartments defining the external shape of the bag
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
- B60R2021/23382—Internal tether means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
- B60R21/2338—Tethers
- B60R2021/23386—External tether means
Definitions
- the invention relates to a front-head / trunk airbag of a vehicle occupant restraint system.
- the aim is to provide the widest possible protection for the head and torso of a vehicle occupant in the case of different types of frontal collision, including a partially offset frontal collision.
- the object of the invention is to provide an improved gas bag, which provides good protection especially in car frontal collisions with low coverage.
- a front-head / fuselage airbag of a vehicle occupant restraint system which has a jacket surface and a baffle surface forming a contact surface for the vehicle occupant, which merges into the jacket surface.
- the baffle surface In the installed state of the airbag, the baffle surface has a central surface section in the installed state and, at the side thereof, at least one bulge projecting laterally relative to the central surface section for laterally securing the head.
- the bulge extending in the direction of the vehicle's rear end captures the head of the vehicle occupant and supports the latter. In this way, a rotational movement of the head can be reduced and the load on the cervical spine can be lowered.
- the baffle surface is advantageously designed so that when contact of the vehicle occupant with the central surface portion, the at least one bulge is located laterally of the occupant's head.
- the front head / trunk gas bag hereinafter also called “gas bag” provides good support for the head.
- the bulge lies in a central region of the vertical longitudinal extent of the baffle surface, based on the inflated state of the gas bag in the installed position. In this case, a large part of the bulge may be below the head and support the vehicle occupants.
- two bulges are provided, which are arranged on opposite sides of the central surface portion and which face each other, so that the head can be supported on both sides. But it is also possible to provide only a single bulge, this is in installation position of the airbag then preferably on its side facing the vehicle interior.
- the lateral surface may be formed from a single blank part.
- the baffle surface is composed of at least two blank parts which are each delimited by a section of a peripheral edge of the baffle surface and by at least one inner edge on which the blank parts of the baffle surface are fastened to one another.
- the mutually facing inner edges of adjacent blank parts of the baffle surface each have a convex portion, and the convex portion defines the bulge.
- the peripheral edge of the baffle is connected to the lateral surface, for example by a seam.
- Each of the blank parts, both for the lateral surface and for the baffle surface is preferably flat spreadable, so is not woven three-dimensional or has darts on.
- the convex portions of the inner edges are shaped to face a blank in which the inner edges form a flat, two-dimensional baffle. make available a surplus of material. This excess material is used to produce the bulge.
- the baffle surface is preferably still flat and two-dimensional spreadable, so that drape and uneven loads in the connection with the lateral surface can be avoided.
- the convex portion may extend at least 50 mm from an imaginary line through the intersections of the inner edge of the respective blank portion with the portion of the peripheral edge of the same blank portion. It has been shown that with a material addition of about 50-150 mm, a sufficiently large bulge can be created.
- the bulge is preferably formed as a whole by such a large amount of material that it protrudes by at least 50 mm in the inflated state of the gas bag relative to the adjacent central surface portion.
- the baffle can be composed of exactly two blank parts. It is also possible to assemble the baffle surface from exactly three blank parts. Also, a baffle made of more than three blank parts is possible, but increases the amount of work against a baffle made of fewer items.
- each of the blank parts preferably has an inner edge with a convex area.
- Two bulges thus emerge from the two connecting seams of the three blank parts, which are arranged at a distance from one another laterally next to the central surface section of the baffle surface.
- the bulge is in each case laterally close to a transition of the baffle surface in the lateral surface or laterally close to the peripheral edge of the baffle.
- the central blank portion of the baffle may be mirror-symmetrical to an imaginary center line along the vertical direction of the baffle, while the two outer blank portions may be formed mirror-symmetrical to each other.
- a tether is provided, the two wall portions of the bulge, in particular two blank parts of the baffle in the region of Bulge, connecting with each other.
- the tether aids shaping by keeping the wall portions in the region of the bulge at a predetermined distance from one another, thereby facilitating a bulge with sufficient extension perpendicular to the impact surface.
- This tether preferably runs inside the gas bag and is also referred to below as "inner tether".
- the points of approach of the inner tether at the wall portions of the bulge are preferably at a transition from the baffle into the bulge and mitdefinieren this transition.
- two inner tethers are provided which are each arranged identically but mirror-invertedly on both bulges.
- a good effect can be achieved if the inner tether is fastened in each case in the region of an imaginary line through the intersections of the inner edge of the blank part with a portion of the peripheral edge of the associated blank part.
- Such an imaginary line runs as the inner edges of a baffle surface composed of a plurality of blank parts would run if the finished baffle surface could be spread flat.
- An arrangement of the inner tethers in this area ensures that the bulges specifically extend away from the baffle surface, while the peripheral edge of the baffle surface is not distorted by tensile loads in the interior of the baffle.
- a tether may be provided on the outside of the airbag (hereinafter also referred to as "outer tether"), which on the one hand on the bulge and on the other on the baffle or in the region of a transition from the baffle surface to the lateral surface, in particular at the peripheral edge, is fixed.
- the outer tether may be fixed, for example, to the convex portion of the inner edges of the blank pieces as well as on the central surface portion.
- the outer tether is fastened in particular at the furthest from the central surface portion of the baffle surface at two adjacent blank parts, preferably at the junction of the two blank parts together.
- the outer catch strap thus engages outside on the outermost point of the bulge furthest from the baffle surface and connects it, for example, to the central surface section of the baffle surface.
- the outer tether produces a counter force that pulls the bulge toward the center of the central portion of the baffle and thus reinforces the support effect on the head.
- the baffle surface is composed of three blank parts, wherein preferably the outer tether is fixed in a central portion on the baffle surface and with its two ends in the region of the two bulges.
- the outer tether is preferably fastened to the central blank part and to the inner edges of adjacent blank parts fastened to each other, wherein in particular the attachment of the outer tether to the inner edges is fixed to the convex portion of the inner edge at the point farthest from the central surface portion of the baffle ,
- the preferred fixation point of the outer tether corresponds to the location furthest from the imaginary center line between the intersections of the respective inner edge with the respective peripheral edge portion of the blank part, which is related to the flat spread blank.
- the fixing point on the central blank part is preferably on the already mentioned imaginary center line of the baffle in the spread state of the Blank, which also corresponds to the center line of the central surface portion of the baffle.
- the tethers preferably each extend approximately perpendicular to this centerline.
- the outer tether may extend independently of the shape of the blank parts between two bulges, wherein preferably the two free ends of the tether are each fixed to one of the bulges.
- the outer tether may be additionally attached between its ends on the baffle surface, but can also run without further fixation between the two bulges.
- both inside and outside extending tethers are provided. But it would also be possible to use only inside or outside running tethers, as described above.
- adjacent blank parts of the baffle surface may be fastened directly to one another at a connection point in the area of the bulge.
- the connection point can be formed for example by a seam, a bond or welding.
- the adjacent blank parts are preferably directly adjacent to each other, so that a non-inflated area arises, which can partially separate an outer area of the bulge in the form of a chamber from the rest of the gas bag volume.
- the bulge can be bent at the connection point in the direction of the center of the central surface portion of the baffle surface, which can be assisted in particular by the action of the outside tethers.
- the connection point advantageously extends approximately parallel to the baffle surface. The thus achieved curvature of the bulge in the direction of the center of the central surface portion and thus toward the head of the vehicle occupant also supports the supporting and collecting effect for the head of the vehicle occupant. But it is also possible to arrange the connection point approximately perpendicular to the baffle, in order to achieve the opposite effect and to stabilize the bulges.
- the gas bag according to the invention is particularly suitable for use as a passenger gas bag, but could also be used e.g. be used as rider gas bag.
- Figure 1 is a schematic perspective view of a front-head / trunk gas bag according to the invention, installed in a vehicle, in the inflated state, according to a first embodiment, in a side view in an impact situation;
- FIG. 2 shows the gas bag from FIG. 1 in a schematic view from behind
- Figure 3 is a schematic side view of the airbag of Figure 1 seen from the door side of the vehicle;
- Figure 4 is a schematic perspective view of the gas bag of Figure 1 in a plan view
- Figure 5 shows the flat-laid blank parts of a gas bag according to the invention according to the first embodiment
- Figure 6 shows the flat-laid blank parts of a gas bag according to the invention according to a second embodiment
- Figure 7 shows the flat-laid blank parts of a gas bag according to the invention according to a third embodiment
- Figure 8 is a schematic plan view of the assembled from the blank parts of Figure 7 gas bag in the inflated state
- FIG. 10 shows the blank parts of a gas bag according to the invention according to a fourth embodiment
- FIG. 11 is a schematic plan view of the assembled from the blank parts of Figure 10 gas bag in the inflated state;
- FIG. 12 shows the gas bag from FIG. 11 in a schematic perspective illustration;
- FIGS. 13 to 16 are schematic perspective views of a gas bag according to the invention in the inflated state, according to a fifth embodiment
- FIGS. 17 to 20 show schematic perspective views of a gas bag according to the invention in the inflated state according to a sixth embodiment
- Figures 21 to 24 are schematic perspective views of a gas bag according to the invention in the inflated state according to a seventh embodiment.
- FIGS. 1 to 5 show a front-head / trunk airbag 10 (hereinafter also referred to as "airbag” for short) according to a first embodiment.
- the gas bag 10 is shown mounted in a vehicle in the inflated state during a collision situation, which may be a frontal collision with a low overlap.
- the gas bag 0 is designed in this example as a passenger gas bag. It has a lateral surface 12 and a baffle surface 14, which merges into the lateral surface 12, wherein in these examples the baffle surface 14 is connected in each case to a peripheral peripheral edge 16 with the lateral surface 12.
- the baffle 14 has a central surface portion 18, and a laterally projecting to the central surface portion 18, opposite this rearwardly projecting, so directed into the vehicle interior, bulge 20.
- the bulge has two opposite wall portions 21 which project from the baffle 14 ,
- the baffle 14 forms a contact surface for a vehicle occupant 22, here a dummy, which dips with its head 24 and chest area in the central surface portion 18 of the baffle 14. In this contact situation, the bulge 20 is laterally of the head 24 of the vehicle occupant 22 and secures it against lateral movement and causes a support, which also reduces rotation of the head 24.
- the bulge 20 extends over a distance d in the vehicle interior in the direction of the vehicle occupant 22 and of the baffle 14, in particular the central surface portion 18 away.
- the distance d is here chosen greater than 50 mm.
- the outer wall of the gas bag 10 is formed here by three blank parts, namely a shell part 26 and two blank parts 28a, 28b, which together form the baffle 14.
- Each of the blank parts 28a, 28b of the baffle 14 is bounded by a portion 16a, 6b of the later peripheral edge 16 of the fully assembled baffle 14, and an inner edge 30, which later extends in the surface of the baffle 14.
- Each of the blank parts 28a, 28b has at its inner edge 30 a convex, outwardly curved portion 32 which defines the bulge 20 in the finished, inflated airbag 10 with.
- the blank forms in a spread state, the blank parts an imaginary line S between the intersection point of the respective section of the outer periphery 16a, 6b and the respective internal edge 30, so is the distance d z of the line S to a furthest spaced from the cutting line S site 34 so large in the convex region 32 of the inner edge 30 that the desired depth d of the bulge 20 results in the finished inflated airbag 10.
- the two blank parts 28a, 28b are completely connected to one another along their inner edges 30, for example sewn, glued or welded, so that a continuous baffle surface 14 is formed from the two blank parts 28a, 28b.
- a continuous baffle surface 14 is formed from the two blank parts 28a, 28b.
- the combined blank part is connected to the shell part 26 to form the finished airbag 10.
- an inner tether 36 is provided, which is formed here from a rectangular piece of fabric and which is arranged inside the gas bag 10. The tether 36 is secured with opposite ends 38 on the surface of each of the blank portions 28a, 28b, respectively in an area 40 along the imaginary line S and opposite the outermost location 34.
- the extension of the inner tether 36 is dimensioned so that in the inflated airbag 10, the inner tether 36 exerts a pull on the two blank parts 28a, 28b.
- the width b of the bulge 20 in the inflated state is essentially determined by the length of the inner tether 36 (see also FIG. 2).
- FIG. 6 shows a second embodiment of a front-head / trunk airbag, in which the baffle surface 14 is composed of a total of three blank parts 128a, 128b, 128c.
- the middle blank portion 128a is mirror-symmetrical along an imaginary center line M along the vertical direction of the baffle 14 in the inflated airbag in the installed position.
- the two outer cut parts 128b, 128c are formed in mirror image with respect to the center line M.
- Each of the two outer blank portions 128b, 128c is formed substantially identical to the outer blank portion 28b just described.
- the inner edges 30 of the central blank portion 128a correspond (mirror-image on one side) to the inner edge 30 of the blank portion 28a just described.
- baffle surface 14 is created which has two bulges 20 laterally of the central surface section 18 of the baffle surface 14.
- inner tethers 36 are provided which are fixed in the region of the cutting lines S at an area 40 on the blank parts 128a, 128b and 128a, 128c in order to limit the width b of the respective bulge 20 (see in each case also FIGS to 4, shown for the embodiment with only a single bulge 20).
- the individual blank portions 128a to 128c of the baffle 14 are assembled at the inner edges 30 and connected to the skirt portion 26, which is identical to the skirt portion 26 of the first embodiment.
- the two inner tethers 36 are secured inside the gas bag.
- FIGS. 7 to 9 show a third embodiment of a front-head / trunk airbag 200.
- FIG. 7 shows the flat-spread cut parts of the airbag 200, which are shown in the assembled and inflated state in FIGS. 8 and 9.
- the jacket part 26 is identical to that of the previous embodiments.
- the baffle 14 of the airbag 200 is composed of two blank parts 228a, 228b.
- each of the blank portions 228a, 228b has a portion of the peripheral edge 216a, 216b and an inner edge 230.
- the two blank portions 228a, 228b are interconnected over the entire length of the inner edge 230, thus forming the baffle 14.
- Each of the inner edges 230 has a convex shaped portion 232, the convex portions 232 being mirror images of each other.
- the most widely in each of an imaginary line of intersection S of the inner edges 230 with the peripheral edge portions 16a, 16b spaced locations 34 of the convex portions 232 have a larger distance d z of the imaginary line S as in the previous embodiments.
- the distance d z may be greater than 75 mm or greater than 100 mm.
- an inner tether 36 is provided, which is fastened with its ends in each case to one of the cut parts 228a, 228b in a region 40 of the imaginary line S and connects them to one another in the interior of the gas bag 200.
- a second, outer tether 242 is provided here, which is attached to the outside of the airbag 200.
- An end 244 of the outer tether 242 is fixed to the surface of the blank portion 228a, in particular in the region of the central surface portion 18 of the baffle 14.
- the other end 246 of the outer tether 242 is at the inner edge 230 of both blank parts 228a, 228b mounted within the convex portion 232.
- the attachment point is located at the point 34, ie in the inflated airbag at the outermost point 47 of the bulge 220.
- the end 246 of the outer tether 242 is attached thereto by the connection of the two blank parts 228a, 228b, for example by the latter connecting seam.
- the outer tether 242 here has a trapezoidal shape, wherein the end 244, which is mounted on the central surface portion 18, is longer than the fixed between the inner edges 230 end 246th
- the outer tether 242 pulls in the inflated airbag 200, the outermost tip of the bulge 220 toward the central surface portion 18 of the baffle 14, as the figures 8 and 9 illustrate. In this way, the supporting action for the head 24 of the vehicle occupant 22 is increased.
- connection point 248 lies on the blank parts 228a, 228b between the points 34, that is to say the attachment point of the second end 246 of the second tether 242 and the region 40 in which the first tether 36 is fixed.
- the connection point 248 creates a small, partially separated from the residual volume of the gas bag 200 chamber 250 at the upper end of the bulge 220.
- the bulge 220 is bent, in the direction of the central surface portion 18 of the baffle 14. This Kinking is assisted by the pull of the outer tether 242. This results in a head 24 of the vehicle occupant 22 out curved shape of the bulge 220, which improves the support of the head 24.
- FIGS. 10 to 12 show a fourth embodiment of a gas bag 300.
- the gas bag 300 essentially corresponds to the gas bag 200 of the third embodiment just described, with the difference that two bulges 320 are provided, which are each formed laterally next to the central surface portion 18 of the baffle surface 14.
- the baffle 14 is composed of three blank parts 328a, 328b, 328c.
- the middle blank part 328a is mirror-symmetrical with respect to an imaginary center line M, while the two outer blank portions 328b, 328c are mirror-symmetrical to each other with respect to the center line M.
- the two outer blank parts 328b, 328c are here substantially identical to the blank part 228b of the third embodiment (the blank part 328c being mirror-inverted to the blank part 228b).
- the middle blank portion 328a has two inner edges 330, each of which is a mirror image of the respective inner edge 330 of the outer blank parts 328b, 328c.
- the adjacent blank parts 328a, 328b and 328a, 328c are connected to each other over the entire length of the inner edges 330.
- the shape of the convex portions 332 of the inner edges 330, the inner tethers 36 and the connection point 348 corresponds to that of the last embodiment, so that will not be discussed further here.
- the second, outer tether 342 here has a shape corresponding to that of the outer tether 242, which was additionally mirrored on its long side at the end 244. With the resulting center line 344, the outer tether 342 is fixed in the center of the central blank part 328a, in the finished gas bag 300 in the middle of the central surface portion 18, at an attachment point 352.
- the two free ends 346 of the outer tether 342, like the free ends 246 of the tether 242 of the third embodiment, are secured to the locations 34 of the convex portions 332 between the individual blank portions in the joint, respectively.
- FIG. 11 and FIG. 8 also show arrows indicating the gas flow in the interior of the gas bag 200 or 300 from an injection mouth 251 via which gas from a gas generator, not shown, flows into the gas bag 200, 300 and from a main volume of the gas bag 200, 300 into the bulge 220, 320 into the chamber 250, 350 formed by the connection point 248, 348.
- FIGS. 13 to 16 show a fifth embodiment of a front head / trunk airbag 400.
- the gas bag 400 has only a single bulge 420, which is formed on one side of the baffle 14 relative to the installed, inflated state.
- An outer tether 442 extends from the outermost point 47 of the bulge 420, i. one of the free ends 446 of the outer tether 442, as described for the previous embodiments, directly at the outermost point 47 attack, but also a piece along the be fixed to the baffle 14 facing wall portion 21 to the baffle 14 toward offset.
- the other free end 444 is not fixed on the central surface portion 18 of the baffle 14 itself, but continues to run e.g. to the peripheral edge 16 on the opposite side of the baffle 14 and is fixed there, such as at a seam which connects the baffle 14 with the shell part 12.
- the outer tether 442 may be trapezoidal as described above, but may also be e.g. rectangular.
- FIGS. 17 to 20 show a sixth embodiment of a front-head / trunk airbag 500.
- two bulges 520 are provided, similar to the gas bag 300 of the fourth embodiment described above.
- an outer tether 542 is provided, the two free ends 544, 546 are fixed to the bulges 520.
- the fixation can, as described for the last embodiment, take place at the respectively outermost points 47 or offset a bit on the respective Wall section 21, which is directed towards the impact surface 14 and the opposite bulge 520 out.
- the outer tether 542 is not connected to the baffle 14 but extends freely between the two bumps 520.
- the outer tether 542 has a distance to the baffle 14 everywhere. If the occupant 22 strikes the outer tether 542, this can be up to the baffle 14, in particular its middle Surface portion 18, are pressed so that the actual interception of the vehicle occupant 22 by the baffle 14 takes place. The bulges 520 are pivoted to the head of the occupant.
- Figures 21 to 24 show a seventh embodiment of a front head / trunk airbag 600.
- This embodiment is very similar to the sixth embodiment just described.
- the outer tether 642 which here also extends freely between two bulges 620, not in the region of the outermost points 47 of the bulges 620, but approximately in the middle of the inner wall portions 21 of the bulges 620 between the outermost points 47 and the transition of the respective bulge 620 arranged in the baffle 14, so that the bulges 620 in the direction of the baffle 14 beyond the ends 644, 646 beyond the outer tether 642 survive.
- each of the protrusions 620 are defined by joints 648, e.g. Darts, interconnected.
- the connection point 648 extends in the direction of the longitudinal extent of the bulges 620, ie away from the baffle 14, so that each of the bulges 620 is subdivided into two adjacent chambers, which improves the stability, in particular in the plane in which the Tether 642 is increased.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/565,447 US11390240B2 (en) | 2015-04-20 | 2016-04-18 | Front-head/chest airbag |
DE112016001813.4T DE112016001813B4 (de) | 2015-04-20 | 2016-04-18 | Front-Kopf/Rumpf-Gassack |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015004973.9A DE102015004973A1 (de) | 2015-04-20 | 2015-04-20 | Front-Kopf/Rumpf-Gassack |
DE102015004973.9 | 2015-04-20 |
Publications (1)
Publication Number | Publication Date |
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WO2016169643A1 true WO2016169643A1 (de) | 2016-10-27 |
Family
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PCT/EP2016/000627 WO2016169643A1 (de) | 2015-04-20 | 2016-04-18 | Front-kopf/rumpf-gassack |
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US (1) | US11390240B2 (de) |
DE (2) | DE102015004973A1 (de) |
WO (1) | WO2016169643A1 (de) |
Cited By (3)
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GB2552145A (en) * | 2016-07-07 | 2018-01-17 | Jaguar Land Rover Ltd | Airbag apparatus |
CN110293929A (zh) * | 2018-03-23 | 2019-10-01 | 奥托立夫开发公司 | 安全气囊装置 |
DE102019102098A1 (de) | 2019-01-29 | 2020-07-30 | Dalphi Metal Espana, S.A. | Gassack, gassackmodul, fahrzeuginsassensicherheitssystem und verfahren zum aufblasen eines gassacks |
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JP6575448B2 (ja) * | 2016-06-30 | 2019-09-18 | 豊田合成株式会社 | エアバッグ装置 |
DE202016107171U1 (de) * | 2016-12-20 | 2018-03-21 | Dalphi Metal Espana, S.A. | Frontgassack |
DE102017117015A1 (de) | 2017-01-31 | 2018-08-02 | Trw Automotive Gmbh | Frontal-Gassack |
DE102017117014A1 (de) | 2017-01-31 | 2018-08-02 | Trw Automotive Gmbh | Frontal-Gassack |
DE102017120238A1 (de) * | 2017-09-04 | 2019-03-07 | Trw Automotive Gmbh | Gassack für ein Fahrzeuginsassen-Rückhaltesystem |
DE102017122681A1 (de) * | 2017-09-29 | 2019-04-04 | Dalphi Metal Espana, S.A. | Frontgassack eines Fahrzeuginsassen-Rückhaltesystems |
JP6761400B2 (ja) * | 2017-10-20 | 2020-09-23 | 本田技研工業株式会社 | エアバッグ装置 |
DE102018113881A1 (de) * | 2018-06-11 | 2019-12-12 | Trw Automotive Safety Systems Gmbh | Gassack zur Rückhaltung eines Fahrzeuginsassen, Verfahren zu dessen Herstellung sowie Gassackmodul mit einem solchen Gassack |
US10730472B2 (en) | 2018-10-23 | 2020-08-04 | Trw Vehicle Safety Systems Inc. | Airbag and method for protecting an occupant of a vehicle |
DE102020132998A1 (de) * | 2020-12-10 | 2022-06-15 | Dalphi Metal Espana, S.A. | Fahrzeuginsassenrückhaltesystem |
CN115339410A (zh) * | 2021-05-13 | 2022-11-15 | 奥托立夫开发公司 | 安全气囊和车辆 |
KR20240058580A (ko) * | 2022-10-26 | 2024-05-03 | 현대모비스 주식회사 | 시트용 에어백 및 그 전개 제어방법 |
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DE102019102098A1 (de) | 2019-01-29 | 2020-07-30 | Dalphi Metal Espana, S.A. | Gassack, gassackmodul, fahrzeuginsassensicherheitssystem und verfahren zum aufblasen eines gassacks |
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Also Published As
Publication number | Publication date |
---|---|
DE102015004973A1 (de) | 2016-10-20 |
DE112016001813B4 (de) | 2024-03-07 |
US11390240B2 (en) | 2022-07-19 |
US20180126945A1 (en) | 2018-05-10 |
DE112016001813A5 (de) | 2017-12-28 |
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