Side gas bag restraint system
First Claim
1. A side gas bag restraint system for protecting an occupant in a motor vehicle having a seat with a back rest and a side window, said system comprising:
- a gas bag having a large area for covering at least a part of the side window of the vehicle, said gas bag comprising;
a non-inflatable section;
at least one inflatable restraint chamber having an inflated state located in front of and above the back rest of the motor vehicle to restrain a head of the occupant; and
inflatable tensioning chambers;
said restraint chamber being extendable substantially from a roof frame of the vehicle vertically downwards to a lower edge of said gas bag;
said inflatable tensioning chambers being connected with said restraint chamber of said gas bag by said non-inflatable section;
said inflatable tensioning chambers having a smaller extension in vertical direction than said restraint chamber;
said inflatable restraint chamber being connected with a plurality of said inflatable tensioning chambers, said inflatable tensioning chambers being connected in series with regard to gas flow and being arranged in succession along a lower edge of said gas bag, said tensioning chambers having constrictions between said tensioning chambers;
said non-inflatable section, constructed so as to have a large area, being tightened between said chambers and the vehicle when said gas bag is inflated.
1 Assignment
0 Petitions
Accused Products
Abstract
A side gas bag restraint system for protecting an occupant (9) in a vehicle has a seat with a back rest (21) and a side window (S). The system includes a gas bag (1) having a large area and covering at least a part of the side window (S) of the vehicle. The gas bag (1) has a non-inflatable section (37), at least one inflatable restraint chamber (23) that has an inflated state. The restraint chamber (23) is provided in front of and above the associated back rest (21) of the vehicle to restrain a head of the occupant (9). The gas bag (1) further has inflatable tensioning chambers (27, 29, 31). The restraint chamber (23) is connected with the tensioning chambers (27, 29, 31) that are connected in series with regard to gas flow and are arranged in succession along a lower edge (25) of the gas bag (1). The tensioning chambers (27, 29, 31) have constrictions (37) between them. The non-inflatable section (37) is tightened between the inflatable chambers (23, 27, 29, 31) and the vehicle when the gas bag (1) is inflated.
29 Citations
21 Claims
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1. A side gas bag restraint system for protecting an occupant in a motor vehicle having a seat with a back rest and a side window, said system comprising:
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a gas bag having a large area for covering at least a part of the side window of the vehicle, said gas bag comprising;
a non-inflatable section;
at least one inflatable restraint chamber having an inflated state located in front of and above the back rest of the motor vehicle to restrain a head of the occupant; and
inflatable tensioning chambers;
said restraint chamber being extendable substantially from a roof frame of the vehicle vertically downwards to a lower edge of said gas bag;
said inflatable tensioning chambers being connected with said restraint chamber of said gas bag by said non-inflatable section;
said inflatable tensioning chambers having a smaller extension in vertical direction than said restraint chamber;
said inflatable restraint chamber being connected with a plurality of said inflatable tensioning chambers, said inflatable tensioning chambers being connected in series with regard to gas flow and being arranged in succession along a lower edge of said gas bag, said tensioning chambers having constrictions between said tensioning chambers;
said non-inflatable section, constructed so as to have a large area, being tightened between said chambers and the vehicle when said gas bag is inflated. - View Dependent Claims (2, 3, 4, 5)
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6. A side gas bag restraint system for protecting an occupant in a motor vehicle having a seat with a back rest and side windows, said system comprising:
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a gas bag having a large area for covering at least a part of the side window of the vehicle, said gas bag comprising;
a non-inflatable section;
at least one inflatable restraint chamber having an inflated state for providing said gas bag in front of and above the back rest of the vehicle to restrain a head of the occupant;
inflatable tensioning chambers; and
a gas generator;
said inflatable tensioning chambers being connected with said at least one inflatable restraint chamber by said non-inflatable section;
said at least one inflatable restraint chamber being connected with at least two of said inflatable tensioning chambers, said tensioning chambers being connected in series with regard to gas flow and being arranged in succession along a lower edge of said gas bag, said tensioning chambers having constrictions between tensioning chambers;
said non-inflatable section, constructed so as to have a large area, being tightened between said chambers and the vehicle when said gas bag is inflated;
a quantity of inflation gas from said gas generator, volumes of said chambers, and flow connections between said chambers being coordinated such that at least one tensioning chamber is not fully inflated by said gas generator during and immediately after actuation of said gas generator.
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7. A side gas bag restraint system for protecting an occupant in a vehicle, the vehicle having a seat with a back rest and a side window, said system comprising a gas bag for covering at least a part of the side window of the vehicle, said gas bag including:
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a non-inflatable section;
at least one inflatable restraint chamber having an inflated state, said restraint chamber being provided in front of and above the back rest to restrain a head of the occupant; and
inflatable tensioning chambers having constrictions between them, said restraint chamber being connected with said tensioning chambers, said tensioning chambers being connected in series with regard to gas flow and arranged in succession along a lower edge of said gas bag, said non-inflatable section being tightened between said restraint chamber and tensioning chambers when said gas bag is inflated. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A side gas bag restraint system for protecting an occupant in a vehicle, the vehicle having a seat with a back rest and a side window, said system comprising a gas bag for covering at least a part of the side window of the vehicle, said gas bag including:
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a non-inflatable section;
at least one inflatable restraint chamber having an inflated state, said restraint chamber being provided in front of and above the back rest to restrain a head of the occupant; and
inflatable tensioning chambers having constrictions between them, said restraint chamber being connected with said tensioning chambers, said tensioning chambers being connected in series with regard to gas flow and arranged in succession, said non-inflatable section being tightened between said restraint and tensioning chambers when said gas bag is inflated, at least one of said tensioning chambers being not fully inflated during and immediately after inflation of said gas bag.
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21. A side gas bag restraint system for protecting an occupant in a vehicle, the vehicle having a seat with a back rest and a side window, said system comprising a gas bag for covering at least a part of the side window of the vehicle, said gas bag including:
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a non-inflatable section;
at least one inflatable restraint chamber having an inflated state, said restraint chamber being provided in front of and above the back rest to restrain a head of the occupant; and
inflatable tensioning chambers having constrictions between them, said restraint chamber being connected with said tensioning chambers, said tensioning chambers being connected in series with regard to gas flow and arranged in succession, said non-inflatable section being tightened between said restraint and tensioning chambers when said gas bag is inflated, said non-inflatable section, in said inflated state, covering substantially an entire region of the side window that is not covered by both the restraint chamber and the tensioning chambers.
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Specification