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
  • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
  • B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
• • 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
  • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
  • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards
  • B60R21/206—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards in the lower part of dashboards, e.g. for protecting the knees
• • 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
  • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
  • B60R21/205—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in dashboards

Definitions

• Airbag module in particular for the passenger and knee area
• the invention relates to an airbag module, in particular for the passenger and knee area according to the preamble of claim 1.
• airbags for the passenger area are also provided in the instrument panel.
• the knee and passenger airbags of the prior art have a large footprint because of their voluminous design. These airbags have a large application area of the gas bag. In particular, the passenger airbags therefore require a significant portion of the surface of the instrument panel.
• a disadvantage of this arrangement is that the application surface is located on the instrument panel in the head impact area of the occupant. As a result, the head of an "out of position" (oop) occupant is shot at the deployment of the airbag of the latter, which can cause significant injuries.
• the passenger airbag is that the design options of the instrument panel are limited.
• Pipe gas generator provided and the associated gas bag extends next to the
• the invention has for its object to build an airbag module so that the application area of the airbag is reduced and a small installation space in the instrument panel is needed so that a passenger airbag module can be installed outside of the head impact area in the instrument panel.
• an airbag module in particular for the front passenger or knee area, with at least one gas generator and at least one gas bag in a module housing according to the invention, the at least one gas generator and the at least one airbag arranged one behind the other in the direction of a longitudinal axis of the airbag module in the module housing that the dimension of Airbag module in the direction of this longitudinal axis is greater than transverse to it.
• This arrangement allows a narrow, long airbag module with a minimum possible application area for the gas bag. Since this application area is the area needed on the instrument panel for the airbag module, this results in greater freedom in designing future generations of instrument panels.
• At least one disc-shaped Gas generator is arranged edgewise in the module housing, so that its space requirement is transverse to the longitudinal axis of the airbag module less than in the direction of the longitudinal axis of the airbag module.
• the radial outflow of the disc-shaped gas generator in the direction of the longitudinal axis of the airbag module allows an optimal inflow of the gas into the gas bag and supports an efficient but less stressful occupants of the airbag deployment.
• the width of the airbag module is determined only by the narrow side of the disk-shaped gas generator.
• At least one tubular gas generator is arranged so that its longitudinal axis extends at least approximately in the direction of the longitudinal axis of the airbag module to achieve a small module width. Since the airbag and the tubular gas generator in the direction of the longitudinal axis of the airbag module are behind one another, the width of the airbag module is determined only by the diameter of the tubular gas generator.
• This airbag arrangement according to the invention makes it possible for the airbag module to be arranged as a passenger airbag module in the vicinity of the window root of the windshield of a motor vehicle. An airbag module arranged in this way then lies outside the endangered area of the head rollover and extends essentially in the vertical direction, while in the horizontal direction it has only a small space requirement.
• the module housing in two parts and in particular to divide in the direction of the longitudinal axis of the airbag module, so that it consists of two housing shells.
• at least one seal is arranged between the housing parts in the mounted state.
• a seal for example, a labyrinth seal and / or adhesive seal and / or separate sealing rubbers may be provided.
• the two housing parts can be connected to each other by means of ultrasound by means of known methods of connection, such as screws, clips, gluing or welding.
• the gas bag is connected to the module housing by means of a clamping frame. It is expedient that the clamping frame has at least one gas-conducting element. Thus, the clamping frame can simultaneously take over the function of a diffuser.
• the clamping frame can be connected in different ways with the module housing.
• the clamping frame has tabs which extend through the wall of the module housing and are fixed to the latter outside of the module housing. Fixing can be done, for example, by crimping or welding the tabs outside the module housing. By this type of fastening of the clamping frame, this can serve as a stiffening anchor between the housing parts.
• the module housing divided in the longitudinal direction of the gas generator clamped between the housing shells and thus can be fixed without further fastening means in the module housing.
• the clamping frame in this split module housing it is also possible to fix the gas bag in the module housing without additional fastening means.
• FIG. 1 shows an inventive passenger airbag module using a disc-shaped gas generator.
• FIG. 2 shows a front passenger airbag module according to the invention using two disk-shaped gas generators; 3 shows a front passenger airbag module according to the invention using a tubular gas generator;
• Fig. 4 is a section through a portion of a vehicle with the built-in passenger airbag.
• a disc-shaped gas generator 1 as is customary for driver airbags, arranged in a module housing consisting of two housing shells 2.3, which extend in the direction of a longitudinal axis L over the entire length of the module housing and which can be bolted together with the interposition of a seal, not shown, for example.
• the disc-shaped gas generator 1 is arranged edgewise between these housing shells 2, 3 and clamped after assembly of the module housing between the housing shells 2.3, so that an additional attachment of the gas generator 1 is unnecessary.
• the gas bag 6 is arranged in the direction of the longitudinal axis L of the passenger airbag module above the gas generator 1. There it only extends in a width which corresponds approximately to the width of the gas generator.
• the gas bag 6 is fixed in the region of its injection mouth 7 by means of a clamping frame 8 between this and the housing shells 2, 3.
• the clamping frame 8 has tabs 9, which extend through the housing shells 2,3 through.
• the clamping frame 8 serves as a stiffening anchor between the two housing shells 2, 3 and also the gas bag without further fastening means between the clamping frame 8 and the housing shells 2, 3 is fixed , Furthermore, the clamping frame 8 serves as a diffuser, are provided in the openings 10 as gas guide elements.
• the illustrated passenger airbag module is in its upper part via a
• Flange 11 is connected to a dashboard 12. It can be seen that the
• Gas generator 1 and the gas bag 6 are arranged one behind the other in the direction of the longitudinal axis L of the airbag module M in the module housing, that the dimension of It is further apparent that the discharge area for the gas bag 6, which is determined in one direction by the height of the gas generator and in the second direction by the diameter of the gas generator, is small, compared to modules of the prior art.
• two disc-shaped gas generators 13, 14 are arranged one above the other in a module housing, which is composed of two housing shells 15, 16.
• the housing shells 15, 16 at indentations 17, 18, 16 provided between the gas generators 13, 14 on the housing shells are additionally connected by a screw 19.
• a clamping frame 20 is provided for the attachment of a gas bag 21 in the region of its injection mouth.
• a tubular gas generator 22 is arranged in a module housing which consists of a lower housing part 23 and an upper housing part 24, which can be connected to one another via flanges 25, 26.
• the tubular gas generator 22 is arranged in the lower housing part 23, the longitudinal axis of the tubular gas generator 22 extending in the direction of the longitudinal axis L of the airbag module M.
• An airbag 27 is arranged in the upper housing part 24. Since the width of the folded gas bag 27 is barely wider than the diameter of the tubular gas generator 22, this airbag module also has the advantages of the previously described embodiments.
• the gas bag 27 is fixed in this embodiment in the region of its injection port 7 between the flanges 25 and 26.
• FIG. 4 shows how an airbag module according to the invention can be arranged in the vicinity of the windshield root 28 of a windshield 29 of a vehicle. It can be seen that the airbag module M below an instrument panel 30 in Area of the lens root 28 is arranged so that the airbag module is located outside the vulnerable head impact area.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Air Bags (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=34353782

Family Applications (1)

Country Status (6)

Families Citing this family (4)

Family Cites Families (31)

• 2004
  • 2004-12-22 DE DE202004020096U patent/DE202004020096U1/de not_active Expired - Lifetime
• 2005
  • 2005-12-14 CN CN2005800445790A patent/CN101090843B/zh not_active Expired - Fee Related
  • 2005-12-14 DE DE112005003483T patent/DE112005003483A5/de not_active Withdrawn
  • 2005-12-14 WO PCT/DE2005/002290 patent/WO2006066557A1/de active Application Filing
  • 2005-12-14 JP JP2007547169A patent/JP4616354B2/ja not_active Expired - Fee Related
  • 2005-12-14 EP EP05850181A patent/EP1827919A1/de not_active Withdrawn
• 2007
  • 2007-06-22 US US11/812,987 patent/US20080007037A1/en not_active Abandoned

Non-Patent Citations (1)

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