GB2513728A - Airbag system for a vehicle - Google Patents

Airbag system for a vehicle Download PDF

Info

Publication number
GB2513728A
GB2513728A GB201406781A GB201406781A GB2513728A GB 2513728 A GB2513728 A GB 2513728A GB 201406781 A GB201406781 A GB 201406781A GB 201406781 A GB201406781 A GB 201406781A GB 2513728 A GB2513728 A GB 2513728A
Authority
GB
United Kingdom
Prior art keywords
seat
airbag
airbag system
vehicle
knee
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB201406781A
Other versions
GB201406781D0 (en
Inventor
Gopal Krishnan Chinnaswamy
Kalyan Cheruvu
Parthiv Shah
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
Daimler AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Daimler AG filed Critical Daimler AG
Priority to GB201406781A priority Critical patent/GB2513728A/en
Publication of GB201406781D0 publication Critical patent/GB201406781D0/en
Publication of GB2513728A publication Critical patent/GB2513728A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42709—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure
    • B60N2/42718—Seats or parts thereof displaced during a crash involving residual deformation or fracture of the structure with anti-submarining systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42754—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion
    • B60N2/42763—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the cushion with anti-submarining systems
    • 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
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • 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
    • 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
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B60R2021/2078—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats in rear seats
    • 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
    • B60R2021/23153—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for rear seat passengers
    • 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
    • B60R2021/23169—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for knee protection

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)

Abstract

An airbag system 10 for a vehicle, the airbag system 10 comprising at least one airbag 40 arranged in a front end region 42 of a seat cushion 36 of a seat 28; the airbag 40 being deployable from a stowage position into at least one protective position thereby pushing at least one knee 46 of a seat occupant 30 upwards, wherein at least with respect to the protective position, at least a portion of the airbag 40 is arranged in a region 50 between the seat cushion 36 and the hollow of the knee 52. The airbag may: have a tubular shape in at least the protective position; may be arranged between the legs of the seat passenger 30; may be mounted on the seat. The airbag system may include at least one inflator 44. The seat may be configured as a rear passenger seat of the vehicle.

Description

Airbag System for a Vehicle The invention relates to an airbag system for a vehicle according to the preamble of patent claim 1.
Such an airbag system for a vehicle is known from JR Hi 0217818 A. The airbag system comprises at least one airbag which is arranged in a front end region of a seat cushion of a seat. The airbag is deployable from a stowage position into at least one protective position thereby pushing at least one knee of a seat passenger upwards. The seat comprises the seat cushion and a cushion frame on which the seat cushion is mounted.
The cushion frame has a recess in which the airbag is arranged. Moreover, the airbag is arranged between the cushion frame and the seat cushion.
It is an object of the present invention to provide an airbag system of the aforementioned kind, by means of which airbag system the seat passenger can be restrained particularly advantageously.
This object is solved by an airbag system having the features of patent claim 1.
Advantageous embodiments with expedient and non-trivial developments of the invention are indicated in the other patent claims.
In order to provide an airbag system of the kind indicated in the preamble of patent claim 1, by means of which airbag system a seat passenger can be restrained particularly advantageously, according to the present invention at least a portion of the airbag system, at least with respect to the protective position, is arranged in a region between the seat cushion and the hollow of the knee. In other words, the airbag is arranged between the seat and the knee joint with respect to the protective position. Thereby, the leg, in particular, the knee of the seat passenger can be moved particularly advantageously and efficiently so that the lower body of the seat passenger can be restrained in the case of an accident. Thus, the seat passenger can be protected against injuries. Especially, the airbag system according to the present invention facilitates an early loading of the lower body thereby helping reduce injuries. The airbag system is particularly useful in crash pulses with early and high initial decelerations.
By moving the knee upwards, the seat passenger's kinematics can be affected or changed such that head contact with interior parts of the vehicle can be avoided.
Moreover, the airbag system according to the present invention helps avoid the so called submarining-effect. The term "submarining-effect" describes the undesirable movement of the seat passenger sliding forward in the seat and out from under the seat belt in a frontal collision. It was found that the pelvis acceleration as well as the chest deflection can be reduced by the seat belt system in a frontal impact.
Further advantages, features, and details of the invention derive from the following description of a preferred embodiment as well as from the drawing. The features and feature combinations previously mentioned in the description as well as the features and feature combinations mentioned in the following description of the figures and/or shown in the figures alone can be employed not only in the respective indicated combination but also in any other combination or taken alone without leaving the scope of the invention.
The drawing shows in the Fig. a schematic side view of an airbag system for a vehicle, the airbag system comprising at least one airbag arranged in a front end region of a seat cushion of a seat and being deployable from a stowage position into at least one protective position, wherein at least a portion of the airbag, at least with respect to the protective position, is arranged in a region between the seat cushion and the hollow of the knee of a seat passenger.
The only Fig. shows an airbag system 10 for a vehicle, in particular a motor vehicle. The vehicle comprises a body having a floor 12. Moreover, the vehicle comprises at least one front seat 14 attached to the floor 12. The front seat 14 comprises a backrest 16 and a seat part 18 having a seat cushion 20 and a seat cushion carrier in the form of a seat pan 22. Alternatively, the seat cushion carrier can be configured as a seat cushion frame. The seat cushion 20 is mounted on the seat cushion carrier (seat pan 22). Moreover, the front seat 14 comprises a headrest 24 attached to the backrest 16.
As can be seen from the Fig., the front seat 14 is arranged in an interior 26 of the vehicle.
The vehicle further comprises a rear seat 28 arranged in the interior 26 and, with respect to the longitudinal direction of the vehicle, behind the front seat 14.
The Fig. also shows a seat passenger 30 sitting on the rear seat 28. The rear seat 28 comprises a backrest 32 and a seat part 34 having a seat cushion 36 and a seat cushion carrier in the form of a seat pan 38, the seat cushion 36 being mounted on the seat pan 38. The rear seat 28 is also attached to the floor 12.
The airbag system 10 comprises at least one sensor configured to detect an accident, in particular, a frontal collision of the vehicle. Moreover, the airbag system 10 comprises at least one airbag 40 arranged in a front end region 42 of the seat cushion 36. The airbag is deployable from a stowage position into at least one protective position shown in the Fig.. The airbag system 10 further comprises at least one inflator 44 configured to inflate the airbag 40 thereby deploying the airbag 40 from the stowage position into the protective position. Both the airbag 40 and the inflator 44 are mounted on the rear seat 28.
If a frontal collision of the vehicle is detected by the sensor, the airbag 40 is inflated by means of the inflator 44 so that the airbag 40 is deployed. Thereby, the knees 46 of the seat passenger 30 are pushed upwards away from the seat cushion 36 and the seat pan 38. This movement of the knees 46 is illustrated by directional arrow 48.
As can be seen in the Fig., at least with respect to the protective position, at least a portion of the airbag 40 is arranged in a region 50 between the seat cushion 36 and the hollow of the knee 52. Thus, the knee 46 can be moved particularly advantageously so that the lower body of the seat passenger 30 can be restrained by means of the airbag system 10. By inflating the airbag 40, it pushes the knee joint between tibia and femur upwards. Thereby, the forward movement of the upper body (chest, neck and head) can be reduced as well. It was found that a significant improvement in chest deflection and in pelvis acceleration as well as a lesser forward movement of the chest can be realized by means of the airbag system 10.
Preferably, with respect to the stowage position, the airbag 40 is arranged between the legs of the seat passenger 30 in the transverse direction of the vehicle. Advantageously, with respect to the protective position, the airbag 40 has a tubular shape so that the airbag 40 across at least a portion of the seat cushion 36 in the transverse direction of the vehicle such that both knees 46 of the seat passenger 30 can be pushed upwards by means of the airbag 40. Since the airbag 40, at least with respect to the protective position, is arranged between the knees 46 and the rear seat 28, the knees 46 can be moved particularly advantageously.
List of reference signs 1 0 airbag system 12 floor 14 front seat 16 backrest 18 seat part seat cushion 22 seat pan 24 headrest 26 interior 28 rear seat seat passenger 32 backrest 34 seat part 36 seat cushion 38 seat pan airbag 42 front end region 44 inflator 46 knee 48 directional arrow region 52 hollow of the knee

Claims (6)

  1. Claims An airbag system (10) for a vehicle, the airbag system (10) comprising at least one airbag (40) arranged in a front end region (42) of a seat cushion (36) of a seat (28), the airbag (40) being deployable from a stowage position into at least one protective position thereby pushing at least one knee (46) of a seat passenger (30) upwards, characterised in that at least with respect to the protective position, at least a portion of the airbag (40) is arranged in a region (50) between the seat cushion (36) and the hollow of the knee (52).
  2. 2. The airbag system (10) according to claim 1, characterised in that at least with respect to the protective position, the airbag (40) has a tubular shape.
  3. 3. The airbag system (10) according to any one of claims 1 or 2, characterised in that the airbag (40) is arranged between the legs of the seat passenger (30).
  4. 4. The airbag system (10) according to any one of the preceding claims, characterised in that the airbag (40) is mounted on the seat (28).
  5. 5. The airbag system (10) according to any one of the preceding claims characterised in that the airbag system (10) comprises at least one inflator (44) configured to inflate the airbag (40) thereby deploying the airbag (40) from the stowage position into the protective position.
  6. 6. The airbag system (10) according to any one of the preceding claims, characterised in that the seat (28) is configured as a rear seat (28) of the vehicle.
GB201406781A 2014-04-15 2014-04-15 Airbag system for a vehicle Withdrawn GB2513728A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB201406781A GB2513728A (en) 2014-04-15 2014-04-15 Airbag system for a vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201406781A GB2513728A (en) 2014-04-15 2014-04-15 Airbag system for a vehicle

Publications (2)

Publication Number Publication Date
GB201406781D0 GB201406781D0 (en) 2014-05-28
GB2513728A true GB2513728A (en) 2014-11-05

Family

ID=50845046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB201406781A Withdrawn GB2513728A (en) 2014-04-15 2014-04-15 Airbag system for a vehicle

Country Status (1)

Country Link
GB (1) GB2513728A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007015540A (en) * 2005-07-07 2007-01-25 Nissan Motor Co Ltd Occupant restraint system and occupant restraining method for vehicle
JP2007320389A (en) * 2006-05-31 2007-12-13 Toyoda Gosei Co Ltd Occupant protection device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007015540A (en) * 2005-07-07 2007-01-25 Nissan Motor Co Ltd Occupant restraint system and occupant restraining method for vehicle
JP2007320389A (en) * 2006-05-31 2007-12-13 Toyoda Gosei Co Ltd Occupant protection device

Also Published As

Publication number Publication date
GB201406781D0 (en) 2014-05-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)