DE3934588A1 - Air-bag knee restraint for vehicle - has expanding support mounting to position air-bag for optimum action - Google Patents
Air-bag knee restraint for vehicle - has expanding support mounting to position air-bag for optimum actionInfo
- Publication number
- DE3934588A1 DE3934588A1 DE19893934588 DE3934588A DE3934588A1 DE 3934588 A1 DE3934588 A1 DE 3934588A1 DE 19893934588 DE19893934588 DE 19893934588 DE 3934588 A DE3934588 A DE 3934588A DE 3934588 A1 DE3934588 A1 DE 3934588A1
- Authority
- DE
- Germany
- Prior art keywords
- sheet metal
- airbag
- restraint system
- knees
- bag
- 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.)
- Granted
Links
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
- B60R21/20—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
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
- B60R2021/21525—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member the lid being fixed on the bag, or forming part of the bag wall, or the bag itself being used as wall liner
-
- 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
- B60R2021/2173—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together the module or part thereof being movably mounted on the vehicle
-
- 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
-
- 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
- B60R2021/23324—Inner walls crating separate compartments, e.g. communicating with vents
-
- 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
- B60R21/235—Inflatable members characterised by their material
- B60R2021/23504—Inflatable members characterised by their material characterised by material
- B60R2021/23528—Metal
Abstract
Description
Die Erfindung bezieht sich auf ein Rückhaltesystem für die Knie eines Fahrers oder Beifahrers in einem Kraft fahrzeug gemäß dem Oberbegriff des Patentanspruchs 1.The invention relates to a restraint system for the knees of a driver or passenger in one force Vehicle according to the preamble of patent claim 1.
Aus der DE-PS 26 06 640 ist ein im Aufprallbereich der Knie von Fahrer und Beifahrer angeordnetes Deforma tionsglied bekannt, welches als etwa senkrecht zu sei ner Längsachse beaufschlagbares Wellrohr ausgebildet ist. In dem Wellrohr wird beim Auslösen eines auf be stimmte Kriterien ansprechenden Sensors ein Überdruck aufgebaut. Dieser Überdruck kann duch dazu benutzt wer den, um auf der Beifahrerseite einen Gassack zu befül len, der sich in Richtung des Kopfraumes hin aufbläht und den Brust- und Kopfbereich des Beifahrers auffängt. Zum Übertritt des Treibgases von dem Wellrohr in den sich schräg nach oben anschließenden Gassack sind in der entsprechenden Wandung des Wellrohres Öffnungen vorgesehen.From DE-PS 26 06 640 is in the impact area Deforma arranged by driver and front passenger tion member known, which is considered to be approximately perpendicular ner longitudinal axis acted upon corrugated tube is. In the corrugated tube when one is triggered on agreed criteria appropriate sensor an overpressure built up. This overpressure can be used by who to fill a gas bag on the passenger side len, which inflates towards the headspace and catches the chest and head area of the passenger. To transfer the propellant gas from the corrugated pipe into the the gas bag that adjoins at an angle are in the corresponding wall of the corrugated tube openings intended.
Der Erfindung liegt die Aufgabe zugrunde, ein Rückhal tesystem für die Knie eines Fahrers oder Beifahrers in einem Kraftfahrzeug so auszubilden, daß es bei Nicht gebrauch wenig Platz beansprucht und die Beinfreiheit nicht beeinträchtigt, bei Aktivierung jedoch bereits zu einem sehr frühen Zeitpunkt auf die Knie des Insassen einwirkt, so daß ein relativ langer Weg zur Energieum wandlung verbleibt.The invention has for its object a back system for the knees of a driver or front passenger in train a motor vehicle so that it is not use little space and the legroom not affected, but already activated when activated very early on the knees of the occupant acts so that a relatively long way to Energieum change remains.
Die Aufgabe wird durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. The task is characterized by the characteristics of the Claim 1 solved.
Das Deformationsglied wird durch einen zusammengefalte ten Blechhohlkörper gebildet, welcher durch Überdruck in seine Wirkstellung gelangt. Somit wird bei Nichtge brauch nur wenig Platz beansprucht; im aktivierten Zu stand hingegen steht ein Deformationselement zur Verfü gung, welches über einen langen Weg die Aufprallenergie der Knie umwandeln kann. Bei dem aus der DE-PS 26 06 640 bekannten Deformationsglied wird zwar der Innen druck des das Deformationsglied bildenden Blechhohlkör pers vergrößert, der zur Verfügung stehende Verfor mungsweg bleibt jedoch gleich. Bei dem vorgeschlagenen Deformationselement wird hingegen der Verformungsweg vergrößert und gleichzeitig der Abstand zwischen dem Deformationselement und den Knien verringert, wodurch das Rückhaltesystem für die Knie früher wirksam werden kann und das "Untertauchen" des zu schützenden Insassen besser unterbunden werden kann.The deformation element is folded up by a th sheet metal hollow body formed by overpressure reaches its active position. Thus, at Nonge take up little space; in the activated Zu however, a deformation element was available which affects the impact energy over a long distance the knee can convert. In the from the DE-PS 26 06 640 known deformation member is the inside pressure of the hollow sheet forming the deformation member pers increased, the available verfor path remains the same. With the proposed The deformation path, on the other hand, becomes the deformation path increases and at the same time the distance between the Deformation element and the knees reduced, which the knee restraint system takes effect earlier can and the "immersion" of the occupant to be protected can be prevented better.
Bei dem neuen Rückhaltesystem sind außerdem an der den Knien des Insassen zugewandten Wandung des Blechhohl körpers Öffnungen vorgesehen, über welche der sich daran anschließende Gassack befüllbar ist. Im Gegensatz zu dem bekannten Rückhaltesystem dient der Gassack nicht dazu, in Richtung des Kopfraumes hin aufgeblasen zu werden, um den Brust- und Kopfbereich des Insassen aufzufangen, sondern um auf die Knie des Insassen ein zuwirken. Dadurch werden die Knie des zu schützenden Insassen bereits zurückgehalten, bevor eine Vorverlage rung statt findet.The new restraint system is also on the Knees of the inmate facing wall of the sheet metal hollow body openings are provided over which the adjoining gas bag can be filled. In contrast the gas bag serves as the well-known restraint system not inflated towards the headspace to become the occupant's chest and head area field, but around on the knees of the occupant to act. This will protect the knees from being protected Inmates already held back before a pre-publisher tion takes place.
Bei den passiven Sicherheitssystemen, beispielsweise einem selbstanlegenden, diagonal verlaufenden Sicher heitsgurt oder einem Beifahrer-Airbag, tritt das Pro blem auf, daß die Sicherheitseinrichtung nur auf den Brustbereich einwirkt und deshalb der Körper nach unten wegtaucht (sog. "Submarining-Effekt"). Um dies zu ver hindern, hat man sog. Kniefänger entwickelt, welche in Verbindung mit den genannten passiven Sicherheitssyste men verbaut werden. Bei den Kniefängern besteht das Problem, daß sie sehr nahe an den Knien des Insassen angeordnet sein sollen, um den Untertauch-Effekt zu unterbinden. Diese Forderung steht im Gegensatz zu der Forderung nach einer ausreichenden Beinfreiheit, welche eine knieferne Anordnung des Kniefängers bedingt. Um beide Forderungen zu erfüllen, hat man sich auch Luft kissen überlegt, welche eine größtmögliche Beinfreiheit erlauben und andererseits bereits zu Beginn der Vorver lagerungsphase auf die Knie des Insassen einwirken. Solche Einrichtungen haben sich unter anderem deshalb nicht bewährt, da die Knie des Insassen einen hohen Flächendruck auf das Luftkissen ausüben und nur wenig Energie umwandelbar ist. In der Praxis haben sich des halb solche Kniefänger durchgesetzt, welche vornehmlich aus deformierbaren Blechträgern gebildet sind.With passive security systems, for example a self-applying, diagonally running safe seat belt or a passenger airbag, the pro kicks in blem that the safety device only on the Chest area and therefore the body down dives away (so-called "submarining effect"). To ver this prevent, so-called knee catchers have been developed, which in Connection with the passive safety systems mentioned men are installed. This is the case with the knee pads Problem that they are very close to the knees of the occupant should be arranged to the immersion effect prevent. This requirement is contrary to the Demand for sufficient legroom, which a knee arrangement of the knee requires a knee. Around To meet both of these requirements, one also has the freedom pillow is considering what is the greatest possible legroom allow and on the other hand already at the beginning of the previous ver act on the occupant's knees during the positioning phase. Among other things, such facilities have not proven because the occupant's knees are high Apply surface pressure to the air cushion and only slightly Energy is convertible. In practice, half such knee catchers prevailed, which mainly are formed from deformable sheet metal supports.
Bei dem neuen Rückhaltesystem wird erreicht, daß durch das auf die Knie des zu schützenden Insassen einwir kenden Gassackes zum frühest möglichen Zeitpunkt die Knie zurückgehalten werden, um das unerwünschte Unter tauchen zu vermeiden. In der zweiten Phase wird durch den Blechhohlkörper des neuen Rückhaltesystems ein Deformationsglied zum Umwandeln der Aufprallenergie geschaffen, welches gegenüber den bekannten Lösungen weniger Bauraum benötigt und trotzdem einen größeren Verformungsweg gewährleistet.The new restraint system ensures that that acts on the knees of the occupant to be protected gas bag at the earliest possible time Knees are restrained to the unwanted bottom to avoid diving. In the second phase, through the hollow sheet metal body of the new restraint system Deformation member for converting the impact energy created, which compared to the known solutions requires less installation space and still a larger one Deformation path guaranteed.
Anstelle des aufblasbaren Gassackes kann auch ein ande res aufblasbares Element Verwendung finden. Ein solches Element kann beispielsweise durch einen im Vakuum in Folie eingeschweißten Schaum bestehen. Wenn nun durch die Öffnungen in der den Knien des Insassen zugewandten Wandung des Bleckhohlkörpers Unterdruck ein Gas zuge führt wird, dann wird das Volumen des Schaumes stark vergrößert und ein wirksames Stoßpolster geschaffen. Da bei dieser Ausgestaltung bei Nichtgebrauch der Sicher heitseinrichtung dem Schaum kein Gas zugeführt werden darf, andererseits jedoch der Schaum über die Öffnungen mit dem Blechhohlkörper in Verbindung stehen muß, ist es notwendig, daß der zusammengefaltete Blechhohlkörper ebenfalls luftdicht abgeschlossen ist.Instead of the inflatable airbag, another one res inflatable element. Such one Element can be vacuumed in, for example Foil welded foam exist. If through now the openings in the knees facing the occupant Wall of the hollow hollow body vacuum a gas added leads, then the volume of the foam becomes strong enlarged and an effective shock cushion created. There in this configuration, the safe when not in use no gas can be supplied to the foam on the other hand, however, the foam over the openings must be in communication with the sheet metal hollow body it is necessary that the folded sheet metal hollow body is also airtight.
Bezüglich der Ausbildung des Blechhohlkörpers ist es vorteilhaft, wenn er an seinem Umfang auf mindestens zwei gegenüberliegenden Seiten wenigstens eine Falte aufweist, die Grundplatte des Blechhohlkörpers den Gasgenerator trägt und die die Öffnung zum Befüllen des Gassacks aufweisende Wandung des Blechhohlkörpers der Grundplatte gegenüberliegt. Je nach dem gewünschten Deformationsweg für den Blechhohlkörper kann dieser mit unterschiedlich vielen Falten ausgebildet sein. Die Blechstärke des Blechhohlkörpers bestimmt im wesentli chen die Energieaufnahmefähigkeit. Die Öffnungen an der den Knien des Insassen zugewandten Wandung des Blech hohlkörpers sind abzustimmen auf das Volumen des Gassackes und darauf, welche Energie zum Auseinander falten des Blechhohlkörpers benötigt wird. Sind die Querschnitte der Öffnungen zu groß gewählt, dann hat dies nämlich zur Folge, daß nur der Gassack aufgeblasen wird, nicht jedoch eine Auseinanderfaltung des Blech hohlkörpers eintritt.With regard to the formation of the hollow sheet metal body, it is advantageous if it is at least at its circumference two opposite sides at least one fold has, the base plate of the hollow sheet metal body Gas generator carries and the opening for filling the Wall of the sheet metal hollow body of the gas bag Base plate is opposite. Depending on the one you want Deformation path for the hollow sheet metal can this with different folds can be formed. The Sheet thickness of the hollow sheet metal essentially determines chen the energy absorption capacity. The openings on the wall of the sheet metal facing the knees of the occupant hollow body are to be matched to the volume of the Gas bags and on what energy to separate folding the sheet metal hollow body is required. Are the Cross sections of the openings selected too large, then this means that only the gas bag is inflated is, but not an unfolding of the sheet hollow body enters.
Besonders vorteilhaft ist, wenn das Rückhaltesystem eine selbttragende, vormontierte Baugruppe bildet, welche durch an der Grundplatte des Blechhohlkörpers angeordnete Halteeinrichtungen an einem Querträger im Armaturenbrettbereich des Kraftfahrzeuges befestigbar ist. Dadurch läßt sich das Rückhaltesystem an einem Nebenband oder einer Nebenstelle komplettieren, so daß am Endmontageband nur wenig Zeit für den Einbau des Rückhaltesystems notwendig ist. Dieser Umstand ist besonders dann von Bedeutung, wenn sowohl Fahrzeuge mit dem Rückhaltesystem, als auch Fahrzeuge ohne ein sol ches wechselweise aufgebaut werden, da die Montagezeit für die umfangreichste Ausstattung die Taktzeit be stimmt.It is particularly advantageous if the restraint system forms a self-supporting, pre-assembled assembly, which by on the base plate of the hollow sheet metal body arranged holding devices on a cross member in Dashboard area of the motor vehicle attachable is. This allows the restraint system on one Complete the sub-band or an extension so that on the final assembly line only little time for installing the Restraint system is necessary. This fact is particularly important if both vehicles with the restraint system, as well as vehicles without a sol ches can be built alternately, because the assembly time for the most extensive equipment the cycle time be Right.
An der Grundplatte des Blechhohlkörpers sind Halteein richtungen für die gesamte Einheit vorgesehen, mit denen sie schnell und zuverlässig an einem Querträger im Armaturenbrettbereich befestigbar ist. Der Querträ ger leitet die auf den Blechhohlkörper einwirkenden Kräfte auf die Fahrzeugkarosserie über.Holders are on the base plate of the hollow sheet metal body directions provided for the entire unit, with which you can quickly and reliably on a cross member can be fastened in the dashboard area. The cross beam ger directs those acting on the sheet metal hollow body Forces on the vehicle body.
Ein Ausführungsbeispiel der Erfindung ist in der Zeich nung dargestellt und wird nachfolgend näher beschrie ben. Es zeigtAn embodiment of the invention is in the drawing shown and will be described in more detail below ben. It shows
Fig. 1 schematisch den Innenraum eines Personenkraftwa gens mit einem im Armaturenbrett angeordneten Rückhaltesystem für die Knie des Fahrers bzw. Beifahrers, Fig. 1 shows schematically the interior of a current passenger cars gene having disposed in the dashboard restraining system for the driver's knees or passenger
Fig. 2 das Rückhaltesystem aus Fig. 1 in der Ausgangs lage und Fig. 2, the restraint system of Fig. 1 in the starting position and
Fig. 3 das Rückhaltesystem aus Fig. 1 im aktivierten Zustand. Fig. 3, the restraint system of FIG. 1 in the activated state.
Ein in Fig. 1 schematisch dargestellter Innenraum eines Personenkraftwagens ist mit einem Armaturenbrett 5 versehen, welches in seinem unteren Bereich ein Rück haltesystem 7 aufnimmt. Das Rückhaltesystem 7 dient dazu, um in Verbindung mit einem passiven Sicherheits system, wie zum Beispiel einen selbstanlegenden Zwei punktgurt oder einem Beifahrerairbag, zu verhindern, daß der Körper des zu schützenden Insassen bei einem Frontaufprall nach unten wegtauchen kann (Submarining- Effekt).An interior of a passenger vehicle, shown schematically in FIG. 1, is provided with a dashboard 5 , which accommodates a rear holding system 7 in its lower region. The restraint system 7 is used to prevent the body of the occupant to be protected from diving downwards in the event of a front impact in conjunction with a passive safety system, such as a self-applying two-point belt or a passenger airbag (submarining effect).
Das in Fig. 2 in der Ausgangsstellung näher gezeigte Rückhaltesystem 7 umfaßt einen mit dem Bezugszeichen 9 gekennzeichneten Blechhohlkörper. Dieser setzt sich zusammen aus einer einen Gasgenerator 11 aufnehmenden Grundplatte 13, einer der Grundplatte 13 gegenüber liegenden Wandung 15 und einem beide Bauteile verbin denden, aus Blech hergestellten Faltenbalg 17.The restraint system 7 shown in more detail in the starting position in FIG. 2 comprises a hollow sheet metal body identified by the reference number 9 . This is composed of a base plate 13 receiving a gas generator 11 , a wall 15 lying opposite the base plate 13 and a bellows 17 made of sheet metal and connecting both components.
An die Wandung 15, welche im eingebauten Zustand des Rückhaltesystems 7 den Knien des Insassen gegenüber liegt, sind mehrere Öffnungen 19 ausgebildet. In dem Randbereich der Wandung 15 ist ein Gassack 21 befestigt, welcher in der in Fig. 2 dargestellten Ruhelage zusam mengefaltet und mit einer Schutzhülle 23 überzogen ist.A plurality of openings 19 are formed on the wall 15 , which lies opposite the knees of the occupant when the restraint system 7 is installed. In the edge region of the wall 15 , an airbag 21 is fastened, which is folded together in the rest position shown in FIG. 2 and is covered with a protective cover 23 .
Das komplette vormontierte Rückhaltesystem 7 kann mit tels an seiner Grundplatte 13 angeordneter Halter 25 an einem Querträger 27 (Fig. 1) in einfacher Weise befe stigt werden. Neben dem Befestigen dieser kompletten Baugruppe muß nur noch der Gasgenerator 11 über sein Verbindungskabel 29 angeschlossen werden.The complete preassembled restraint system 7 can be fastened with means arranged on its base plate 13 holder 25 on a cross member 27 ( FIG. 1) in a simple manner. In addition to attaching this complete assembly, only the gas generator 11 must be connected via its connecting cable 29 .
Fig. 3 zeigt das Rückhaltesystem, wenn es aktiviert ist, d. h. der Gasgenerator 11 durch einen auf be stimmte Kriterien ansprechenden Sensor (nicht gezeigt) gezündet wurde. Fig. 3 shows the restraint system when it is activated, ie the gas generator 11 has been ignited by a sensor (not shown) responding to certain criteria.
Durch den Gasdruck wird zunächst der aus Blech beste hende Faltenbalg 17 des Blechhohlkörpers 9 durch Deh nung der Falten auseinander gezogen. Die Wandung 15 entfernt sich dadurch von der Grundplatte 13 des Blech hohlkörpers 9. Die Öffnungen 19 in der Wandung 15 sind so ausgebildet, daß sich zunächst ein ausreichend großer, den Faltenbalg 17 auseinander ziehender Druck aufbaut und anschließend erst soviel Gas in den sich an die Wandung 15 anschließenden Faltenbalg 21 gedrückt wird, daß sich der Gassack 21 aufbläht. Erst wenn dies geschehen ist, baut sich der Druck ab, indem das Gas durch das Gewebe des Gassackes 21 oder spezielle Öffnungen in dem Gassack 21 entweicht. Sofern ein gas dichter Gassack Verwendung findet, sind in an sich be kannter Weise andere Abströmöffungen oder eine bei einem vorbestimmten Wert reagierende Platzmembran vor zusehen.By gas pressure, the best existing bellows 17 of the sheet metal hollow body 9 is pulled apart by expansion of the folds. The wall 15 thereby moves away from the base plate 13 of the sheet metal hollow body 9 . The openings 19 in the wall 15 are designed so that a sufficiently large pressure, which pulls the bellows 17 apart, is built up and only then is so much gas pressed into the bellows 21 adjoining the wall 15 that the gas bag 21 inflates. Only when this has been done does the pressure drop by the gas escaping through the fabric of the gas bag 21 or special openings in the gas bag 21 . If a gas-tight gas bag is used, other outflow openings or a space membrane reacting at a predetermined value are to be seen in a manner known per se.
Im aktivierten Zustand wirkt der Gassack 21 auf die Knie des Insassen ein und verhindert dadurch sein Un tertauchen auf dem Vordersitz. Im weiteren Bewegungsab lauf wird jedoch durch die Knie der Gassack 21 so weit zusammengedrückt, bis die Knie in Anlage an die Wandung 15 des Blechhohlkörpers 9 gelangen. Der Blechhohlkörper 9 wirkt als Deformationselement, indem die Aufprallen ergie durch den Faltenbalg 17 in Verformungsenergie um gewandelt wird.In the activated state, the airbag 21 acts on the knees of the occupants and thereby prevents them from submerging in the front seat. In the further movement, however, the airbag 21 is compressed by the knees until the knees come into contact with the wall 15 of the hollow sheet metal body 9 . The sheet metal hollow body 9 acts as a deformation element in that the impact energy is converted into deformation energy by the bellows 17 .
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE19893934588 DE3934588C2 (en) | 1989-10-17 | 1989-10-17 | Restraint system with a hollow deformation element for the knees of a motor vehicle occupant |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19893934588 DE3934588C2 (en) | 1989-10-17 | 1989-10-17 | Restraint system with a hollow deformation element for the knees of a motor vehicle occupant |
Publications (2)
Publication Number | Publication Date |
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DE3934588A1 true DE3934588A1 (en) | 1991-04-25 |
DE3934588C2 DE3934588C2 (en) | 1994-02-10 |
Family
ID=6391622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19893934588 Expired - Lifetime DE3934588C2 (en) | 1989-10-17 | 1989-10-17 | Restraint system with a hollow deformation element for the knees of a motor vehicle occupant |
Country Status (1)
Country | Link |
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DE (1) | DE3934588C2 (en) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4301193A1 (en) * | 1992-01-29 | 1993-08-05 | Volkswagen Ag | Vehicle door with integrally fitted air bag - uses flat wall of air bag to create moisture-resistant seal in door |
EP0609959A1 (en) * | 1990-06-15 | 1994-08-10 | Trw Vehicle Safety Systems Inc. | Air bag module construction and assembly technique |
US5395133A (en) * | 1994-02-04 | 1995-03-07 | Morton International, Inc. | Air bag reaction canister having softened edges |
DE4405075A1 (en) * | 1994-02-17 | 1996-01-18 | Siegfried Langwieser | Safety spar for installation in motor vehicle |
EP0719679A3 (en) * | 1994-12-28 | 1996-12-04 | Tokai Rika Co Ltd | Air bag apparatus |
EP0801611A1 (en) * | 1995-01-17 | 1997-10-22 | Primex Technologies, Inc. | Inflatable metal bladders for automobile passenger protection |
WO1998028166A2 (en) | 1996-12-21 | 1998-07-02 | Volkswagen Aktiengesellschaft | Steering wheel-mounted restraining system for a motor vehicle |
DE19701709A1 (en) * | 1997-01-21 | 1998-07-23 | Pars Passive Rueckhaltesysteme | Knee protector for vehicle passenger |
DE19711688A1 (en) * | 1997-03-20 | 1998-09-24 | Bayerische Motoren Werke Ag | Knee protection system for motor vehicles |
DE19749585A1 (en) * | 1997-11-10 | 1999-05-12 | Volkswagen Ag | Passenger restraint system for motor vehicles |
DE19714356C2 (en) * | 1996-10-18 | 1999-12-02 | Suzuki Motor Co | Built-in construction for airbags in the car |
WO2000007851A2 (en) * | 1998-08-07 | 2000-02-17 | Delphi Technologies, Inc. | Inflatable knee bolster |
WO2000050270A1 (en) * | 1999-02-24 | 2000-08-31 | Automotive Development Specialists Ltd. | Inflatable protection apparatus |
WO2000058132A1 (en) * | 1999-03-18 | 2000-10-05 | Lars Sundholm | Safety system for steering wheel |
FR2792593A1 (en) | 1999-04-20 | 2000-10-27 | Poudres & Explosifs Ste Nale | PROTECTION SYSTEM FOR THE LOWER MEMBERS OF AN OCCUPANT OF A MOTOR VEHICLE |
US6213497B1 (en) * | 1998-08-07 | 2001-04-10 | Delphi Technologies, Inc. | Inflatable knee bolster |
WO2001045986A1 (en) * | 1999-12-21 | 2001-06-28 | Autoliv Development Ab | Metal air-bag |
US6416079B1 (en) | 1998-07-20 | 2002-07-09 | Trw Occupant Restraint Systems Gmbh & Co. Kg | Knee-retaining device for a vehicle |
US6688643B2 (en) * | 2001-03-06 | 2004-02-10 | Autoliv Asp, Inc. | Inflatable airbag bolster panel retention apparatus |
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US6758493B2 (en) | 1998-08-07 | 2004-07-06 | Delphi Technologies, Inc. | Passenger side active knee bolster |
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CN105270314A (en) * | 2014-07-14 | 2016-01-27 | 福特全球技术公司 | Hinged mounting system for airbag module having deployable lock |
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GB2547073A (en) * | 2015-12-02 | 2017-08-09 | Ford Global Tech Llc | Seat with deployable plastic beam |
EP3280620A4 (en) * | 2015-04-09 | 2018-12-05 | Autoliv ASP, Inc. | Airbag assemblies for vehicles with generous leg room |
DE102009047673B4 (en) | 2009-07-16 | 2019-07-18 | Ashimori Industry Co. Ltd. | An airbag apparatus and apparatus for protecting the lower limbs of a vehicle occupant and apparatus for protecting the occupant at the time of a side collision of a vehicle using the same |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4445487C1 (en) * | 1994-12-20 | 1996-05-02 | Audi Ag | Safety device in motor vehicles for protecting passenger's legs |
DE4445485C1 (en) * | 1994-12-20 | 1996-05-02 | Audi Ag | Safety device in motor vehicles to protect passenger's legs |
DE19950944A1 (en) * | 1999-10-22 | 2001-04-26 | Bayerische Motoren Werke Ag | Combination of airbag and additional shock absorbing device for protection of knee of occupant of motor vehicle comprises shock absorbing unit, joined to inner surface of car body at one end |
US10946825B2 (en) | 2018-12-04 | 2021-03-16 | Ford Global Technologies, Llc | Airbag assembly |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3552770A (en) * | 1968-11-04 | 1971-01-05 | Eaton Yale & Towne | Safety device |
DE2162153A1 (en) * | 1971-01-15 | 1972-08-03 | Ford-Werke AG, 5000 Köln | Motor vehicle with impact protection in the interior |
DE2606641A1 (en) * | 1976-02-19 | 1977-08-25 | Daimler Benz Ag | Compact mounting for airbag system - uses hollow crush member under bottom edge of dashboard to protect knees of occupant |
DE2606640A1 (en) * | 1976-02-19 | 1977-08-25 | Daimler Benz Ag | DEFORMING MEMBER IN THE IMPACT AREA OF THE KNEES |
DE8619670U1 (en) * | 1986-07-22 | 1987-08-06 | Trw Repa Gmbh, 7077 Alfdorf, De |
-
1989
- 1989-10-17 DE DE19893934588 patent/DE3934588C2/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3552770A (en) * | 1968-11-04 | 1971-01-05 | Eaton Yale & Towne | Safety device |
DE2162153A1 (en) * | 1971-01-15 | 1972-08-03 | Ford-Werke AG, 5000 Köln | Motor vehicle with impact protection in the interior |
DE2606641A1 (en) * | 1976-02-19 | 1977-08-25 | Daimler Benz Ag | Compact mounting for airbag system - uses hollow crush member under bottom edge of dashboard to protect knees of occupant |
DE2606640A1 (en) * | 1976-02-19 | 1977-08-25 | Daimler Benz Ag | DEFORMING MEMBER IN THE IMPACT AREA OF THE KNEES |
DE8619670U1 (en) * | 1986-07-22 | 1987-08-06 | Trw Repa Gmbh, 7077 Alfdorf, De |
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US5395133A (en) * | 1994-02-04 | 1995-03-07 | Morton International, Inc. | Air bag reaction canister having softened edges |
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EP0719679A3 (en) * | 1994-12-28 | 1996-12-04 | Tokai Rika Co Ltd | Air bag apparatus |
US5704636A (en) * | 1994-12-28 | 1998-01-06 | Kabushiki Kaisha Tokai-Rika-Denki-Seisakusho | Air bag apparatus |
EP0801611A1 (en) * | 1995-01-17 | 1997-10-22 | Primex Technologies, Inc. | Inflatable metal bladders for automobile passenger protection |
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DE19701709A1 (en) * | 1997-01-21 | 1998-07-23 | Pars Passive Rueckhaltesysteme | Knee protector for vehicle passenger |
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US6017059A (en) * | 1997-03-20 | 2000-01-25 | Bayerische Motoren Werke Aktiengesellschaft | Knee protection system for motor vehicles |
DE19749585B4 (en) * | 1997-11-10 | 2010-06-10 | Volkswagen Ag | Occupant restraint system and motor vehicle with passenger restraint system |
DE19749585A1 (en) * | 1997-11-10 | 1999-05-12 | Volkswagen Ag | Passenger restraint system for motor vehicles |
US6416079B1 (en) | 1998-07-20 | 2002-07-09 | Trw Occupant Restraint Systems Gmbh & Co. Kg | Knee-retaining device for a vehicle |
WO2000007851A3 (en) * | 1998-08-07 | 2000-06-15 | Delphi Tech Inc | Inflatable knee bolster |
WO2000007851A2 (en) * | 1998-08-07 | 2000-02-17 | Delphi Technologies, Inc. | Inflatable knee bolster |
US6213497B1 (en) * | 1998-08-07 | 2001-04-10 | Delphi Technologies, Inc. | Inflatable knee bolster |
US6203057B1 (en) | 1998-08-07 | 2001-03-20 | General Motors Corporation | Inflatable knee bolster |
US6619689B2 (en) | 1998-08-07 | 2003-09-16 | Delphi Technologies, Inc. | Inflatable knee bolster |
US6758493B2 (en) | 1998-08-07 | 2004-07-06 | Delphi Technologies, Inc. | Passenger side active knee bolster |
DE19858520C5 (en) * | 1998-12-18 | 2004-03-04 | Autoliv Development Ab | Knee protection device with load distribution cage |
WO2000050270A1 (en) * | 1999-02-24 | 2000-08-31 | Automotive Development Specialists Ltd. | Inflatable protection apparatus |
WO2000058132A1 (en) * | 1999-03-18 | 2000-10-05 | Lars Sundholm | Safety system for steering wheel |
FR2792593A1 (en) | 1999-04-20 | 2000-10-27 | Poudres & Explosifs Ste Nale | PROTECTION SYSTEM FOR THE LOWER MEMBERS OF AN OCCUPANT OF A MOTOR VEHICLE |
WO2001045986A1 (en) * | 1999-12-21 | 2001-06-28 | Autoliv Development Ab | Metal air-bag |
US6783154B2 (en) | 1999-12-21 | 2004-08-31 | Autoliv Development Ab | Metal air-bag |
WO2001051317A1 (en) * | 2000-01-07 | 2001-07-19 | Delphi Technologies, Inc. | Inflatable knee bolster |
US6688643B2 (en) * | 2001-03-06 | 2004-02-10 | Autoliv Asp, Inc. | Inflatable airbag bolster panel retention apparatus |
EP1544053A1 (en) * | 2002-07-25 | 2005-06-22 | Autoliv Development Ab | Inflator bag for occupant restraint device and method of manufacturing the inflator bag |
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US7431330B2 (en) | 2002-07-25 | 2008-10-07 | Autoliv Development Ab | Inflator bag for occupant restraint device and method of manufacturing the inflator bag |
US7841975B2 (en) | 2002-07-25 | 2010-11-30 | Autoliv Development Ab | Inflator bag for vehicle occupant restraining apparatus and method for manufacturing the same |
WO2005012051A1 (en) * | 2003-07-31 | 2005-02-10 | Autoliv Asp, Inc. | Adapter unit for a knee airbag |
WO2008130281A1 (en) * | 2007-04-19 | 2008-10-30 | Autoliv Development Ab | A safety arrangement |
DE102009047673B4 (en) | 2009-07-16 | 2019-07-18 | Ashimori Industry Co. Ltd. | An airbag apparatus and apparatus for protecting the lower limbs of a vehicle occupant and apparatus for protecting the occupant at the time of a side collision of a vehicle using the same |
US8408593B2 (en) | 2009-11-11 | 2013-04-02 | GM Global Technology Operations LLC | Vehicle cabin with airbag system |
DE102009052691A1 (en) * | 2009-11-11 | 2011-05-12 | GM Global Technology Operations LLC, Detroit | Vehicle cabin with airbag system |
CN103661228A (en) * | 2012-09-25 | 2014-03-26 | 福特全球技术公司 | Active bolster with stepped bladder spacing |
CN103661228B (en) * | 2012-09-25 | 2017-04-12 | 福特全球技术公司 | Active bolster with stepped bladder spacing and air inflation method thereof |
CN105270314A (en) * | 2014-07-14 | 2016-01-27 | 福特全球技术公司 | Hinged mounting system for airbag module having deployable lock |
CN105270314B (en) * | 2014-07-14 | 2019-12-10 | 福特全球技术公司 | Hinged fastening system for airbag modules with deployable locking means |
JP2016060352A (en) * | 2014-09-17 | 2016-04-25 | 豊田合成株式会社 | Front passenger seat airbag apparatus |
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Legal Events
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OP8 | Request for examination as to paragraph 44 patent law | ||
D2 | Grant after examination | ||
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8320 | Willingness to grant licenses declared (paragraph 23) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: GRAF, HANS-PETER, 85080 GAIMERSHEIM, DE |