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DE2711192A1 - Steering wheel mounted air-bag - has impact sensor and optical indicator to show state of system housed in replaceable package - Google Patents

Steering wheel mounted air-bag - has impact sensor and optical indicator to show state of system housed in replaceable package

Info

Publication number
DE2711192A1
DE2711192A1 DE19772711192 DE2711192A DE2711192A1 DE 2711192 A1 DE2711192 A1 DE 2711192A1 DE 19772711192 DE19772711192 DE 19772711192 DE 2711192 A DE2711192 A DE 2711192A DE 2711192 A1 DE2711192 A1 DE 2711192A1
Authority
DE
Germany
Prior art keywords
steering wheel
sensor
plate
gas cushion
impact sensor
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
Application number
DE19772711192
Other languages
German (de)
Other versions
DE2711192C2 (en
Inventor
Luigi Dr Ing Brambilla
Werner Dipl Ing Breitschwerdt
Peter Dipl Ing Hoheisel
Hansjuergen Dipl Ing Scholz
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.)
Daimler Benz AG
Original Assignee
Daimler Benz 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 Benz AG filed Critical Daimler Benz AG
Priority to DE19772711192 priority Critical patent/DE2711192C2/en
Publication of DE2711192A1 publication Critical patent/DE2711192A1/en
Application granted granted Critical
Publication of DE2711192C2 publication Critical patent/DE2711192C2/en
Expired legal-status Critical Current

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
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/203—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in steering wheels or steering columns
    • 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
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R2021/01006—Mounting of electrical components in vehicles

Landscapes

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

Abstract

The steering wheel mounted airbag is folded in a compact housing (5) and covered by a trim plate (3) inside the contours of the steering wheel (2). The impact sensor (7) is mounted under the plate, and has an optic indicator (9) in the view of the driver to indicate that the airbag system is in the ready state. The optic sensor protrudes past the cover plate and can be unplugged to plug in a connector for a diagnostic circuit. The whole airbag system is light and compact and can be fitted to existing vehicles.

Description

Die Erfindung betrifft eine innerhalb eines LenkhandradesThe invention relates to one within a steering handwheel

angeordnete Gaskissen-Einheit, bestehend aus einem im normalen Fahrbetrieb durch eine Platte abgedeckten und zusammengefalteten Gaskissen und aus einem Gaserzeuger, der im Aufprallfalle durch einen Sensor aktiviert wird, wobei weiterhin eine die Betriebsbereitschaft der Einrichtung erfassende Uberwachungseinrichtung mit optischer Anzeige vorgesehen ist.arranged gas cushion unit, consisting of one in normal driving operation gas cushion covered by a plate and folded up and from a gas generator, which is activated in the event of an impact by a sensor, while still a die Operational readiness of the device detecting monitoring device with optical Ad is provided.

Eine derartige Gaskissen-Einheit ist durch die DT-OS 21 14 475 bekannt, wobei der Sensor im Bereich des Vorbaues des Kraftwagens liegt und die optische Anzeige im Armaturenbrett eingelassen ist. Diese Anordnung von Sensor und optischer Anzeige ist mit einem großen Montageaufwand verbunden und birgt wegen der langen Leitungen Fehlerquellen in sich.Such a gas cushion unit is known from DT-OS 21 14 475, whereby the sensor is in the area of the front end of the vehicle and the optical one Display is embedded in the dashboard. This arrangement of sensor and optical Display is associated with a large assembly effort and, because of the long Lines are sources of error in themselves.

Aufgabe der Erfindung ist es, alle zu einem Gaskissen-Rückhaltesystem erforderlichen Komponenten so anzuordnen, daß eine einfache Montage und Demontage, sowie eine im Blickfeld des Fahrers liegende Überwachungsmöglichkeit der Einrichtung gegeben ist. Außerdem soll erreicht werden, daß die Betriebssicherheit verbessert und es ermöglicht wird, Kraftwagen auch nachträglich noch leicht it einem Gaskissen-Rückhaltesystem auszurüsten.The object of the invention is all to one gas cushion restraint system to arrange the necessary components in such a way that easy assembly and disassembly, as well as a facility for monitoring the facility in the driver's field of vision given is. In addition, the aim is to improve operational safety and it is made possible to easily retrofit vehicles with a gas cushion restraint system equip.

Dies wird bei einer innerhalb eines Lenkhandrades angeordnetzen Gaskissen-Einheit der eingangs geschilderten Art dann erreicht, wenn erfindungsgemäß der Sensor durch einen Außenbereich der Platte verdeckt am Grundkörper des Lenkhandrades befestigt ist und wenn die Überwachungseinrichtung derart mit dem Sensor verbunden ist, daß zumindest die optische Anzeige über die äußere Begrenzung der Platte hinausragt.This is done in the case of a gas cushion unit arranged within a steering handwheel of the type described above is achieved when, according to the invention, the sensor passes through an outer area of the plate attached to the base body of the steering handwheel in a concealed manner and if the monitoring device is connected to the sensor in such a way that at least the visual display protrudes beyond the outer boundary of the plate.

Man erhält somit eine kompakte Baueinheit, die leicht iiberpriifbar und bei Bedarf austauschbar ist. Der im Lenkhandrad angeordnete Sensor hat den Vorteil, daß er die beste 13ezugslage zum Fahrer aufweist, so daß die Zuordnung von Beschleunigungsablauf des Fahrzeuges einerseits und dadurch bedingtem Bewegungsablauf des Fnhrers andererseits verbessert wird. Schließlich wird durch die erfindungsgemäne Anordnung der Überwachungseinrichtung ein direkter Bezug zum Riickhaltesystem hergestellt.The result is a compact structural unit that can be easily checked and is interchangeable if necessary. The sensor located in the steering wheel has the advantage of that he has the best reference position to the driver, so that the assignment of the acceleration sequence of the vehicle on the one hand and the resulting movement of the driver on the other is improved. Finally, the inventive arrangement of the monitoring device a direct reference to the restraint system is established.

Eine externe Priifung der Gaskissen-Einheit wird ermöglicht, wenn die Überwachungseinrichtung iiber Steckkontakte mit dem Sensor verbunden ist.An external test of the gas cushion unit is possible if the monitoring device is connected to the sensor via plug contacts.

Der Gegenstand der Erfindung soll nachfolgend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels näher erläutert werden.The subject matter of the invention will be based on one in the Drawing illustrated embodiment will be explained in more detail.

Ein im wesentlichen aus einem Grundkorper 1, einem Lenkkranz 2 und einer vorzugsweise gepolsterten Platte 3 bestehendes Lenkhandrad 4 nimmt ein Riickhaltesystem auf, das ein im normalen Fahrbetrieb durch die Platte 3 abgedecktes und zusammengefaltetes Gaskissen 5, einen nicht dargestellten, dem Gaskissen 5 vorgelagerten und auf pyrotechnischer Basis arbeitenden Gaserzeuger, einen von einem Außenbereich 6 der Platte 3 verdeckten Sensor 7 und eine mit diesem ilber Steckkontakte 8 lösbar verbundene Uberwachungseinrichtung 9 mit optischer Anzeige 10 aufweist. Die optische Anzeige 10, die nach dem Entfernen einer Abdeckung 11 leicht ersetzt werden kann, ragt über die äußere Begrenzung 12 der Platte 3 hinaus und befindet sich somit im Blickfeld des Fahrers.A substantially from a base body 1, a turntable 2 and a preferably padded plate 3 existing steering wheel 4 takes a restraint system on, the one covered and folded up during normal driving by the plate 3 Gas cushion 5, a not shown, the gas cushion 5 upstream and on pyrotechnic Base working gas generator, one covered by an outer area 6 of the plate 3 Sensor 7 and a monitoring device detachably connected to this via plug contacts 8 9 with optical display 10. The visual display 10 that after removal a cover 11 can easily be replaced, protrudes over the outer boundary 12 the plate 3 and is thus in the driver's field of vision.

Nach dem Abziehen der die Funktionsbereitschaft der Einrichtung erfassenden Uberwachungseinrichtung 9 kann z.B. ein extern arbeitendes Diagnosegerät angeschlossen werden, ohne daß Teile des Rückhaltesystemes ausgebaut werden müssen.After the removal of the operational readiness of the device Monitoring device 9 can, for example, be connected to an externally operating diagnostic device without having to remove parts of the restraint system.

Claims (2)

Innerhalb eines Lenkhandrades angeordnete Gaskissen-Einheit" Ansprüche 1. Innerhalb eines Lenkhandrades angeordnete Gaskissen Einheit, bestehend aus einem im normnlen Fahrbetrieb durch eine Platte abgedeckten und zusammengefalteten Gaskissen und aus einem Gaserzeuger, der im Aufprallfalle durch einen Sensor aktiviert wird, wobei weiterhin eine die Betriebsbereitschaft der Einrichtung erfassende Uberwachungseinrichtung mit optischer Anzeige vorgesehen ist, dadurch gekennzeichnet, daß der Sensor (7) durch einen Außenbereich (6) der Platte (3) verdeckt am Grundkörper (1) des Lenkhandrades (4) befestigt ist und die Überwachungseinrichtung (9) derart mit dem Sensor (7) verbunden ist, daß zumindest die optische Anzeige (10) über die äußere Begrenzung (12) der Platte (3) hinausragt. Gas cushion unit arranged within a steering handwheel "Claims 1. A gas cushion unit arranged within a steering handwheel, consisting of a In normal driving mode, the gas cushion is covered and folded up by a plate and from a gas generator that is activated by a sensor in the event of an impact, furthermore a monitoring device detecting the operational readiness of the device is provided with an optical display, characterized in that the sensor (7) covered by an outer area (6) of the plate (3) on the base body (1) of the steering handwheel (4) is attached and the monitoring device (9) in such a way with the sensor (7) is connected that at least the visual display (10) on the outer boundary (12) of the plate (3) protrudes. 2. Gaskissen-Einheit nach Anspruch 1, dadurch gekennzeichnet, daß die Üborwachungseinrichtung (9) über Steckkontakte (8) ult dem Sensor (7) verbunden ist. 2. Gas cushion unit according to claim 1, characterized in that the monitoring device (9) is connected to the sensor (7) via plug contacts (8) is.
DE19772711192 1977-03-15 1977-03-15 Impact protection device for the driver of a motor vehicle Expired DE2711192C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19772711192 DE2711192C2 (en) 1977-03-15 1977-03-15 Impact protection device for the driver of a motor vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772711192 DE2711192C2 (en) 1977-03-15 1977-03-15 Impact protection device for the driver of a motor vehicle

Publications (2)

Publication Number Publication Date
DE2711192A1 true DE2711192A1 (en) 1978-09-21
DE2711192C2 DE2711192C2 (en) 1986-10-30

Family

ID=6003670

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772711192 Expired DE2711192C2 (en) 1977-03-15 1977-03-15 Impact protection device for the driver of a motor vehicle

Country Status (1)

Country Link
DE (1) DE2711192C2 (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619937A1 (en) * 1986-06-13 1987-12-17 Bayerische Motoren Werke Ag Safety air bag
US4819960A (en) * 1986-11-21 1989-04-11 Breed Automotive Technology, Inc. Angled vehicle crash sensor
WO1990015732A1 (en) * 1988-05-21 1990-12-27 Messerschmitt-Bölkow-Blohm Gmbh Safety arrangement for motor vehicles
DE3941606A1 (en) * 1989-12-16 1991-06-20 Messerschmitt Boelkow Blohm Sensor triggering restraining system esp. air-bag in motor vehicle - has electronic power switch detecting acceleration and requiring no external power source
WO1991014601A1 (en) * 1990-03-23 1991-10-03 Siemens Aktiengesellschaft Arrangement for securing an airbag on the steering wheel of a vehicle
US5324074A (en) * 1991-11-07 1994-06-28 Christian Ronald A Airbag system
EP0688701A1 (en) * 1994-06-20 1995-12-27 Morton International, Inc. Windowed airbag cover and method of manufacture thereof
US5505483A (en) * 1993-04-28 1996-04-09 Nippondenso Co., Ltd. Airbag safety module for vehicle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2034008A1 (en) * 1970-07-09 1972-01-13 Daimler Benz Ag, 7000 Stuttgart Safety steering for motor vehicles
DE2114475A1 (en) * 1971-03-23 1972-09-28 Daimler-Benz Ag, 7000 Stuttgart Occupant protection device for vehicles, in particular motor vehicles
DE2225173A1 (en) * 1971-05-28 1972-12-14 Allied Chemical Corp., Morristown, N.J. (V.StA.) Multiple pyro system
DE2315070A1 (en) * 1972-03-29 1973-10-11 Allied Chem SAFETY INFLATER

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2034008A1 (en) * 1970-07-09 1972-01-13 Daimler Benz Ag, 7000 Stuttgart Safety steering for motor vehicles
DE2114475A1 (en) * 1971-03-23 1972-09-28 Daimler-Benz Ag, 7000 Stuttgart Occupant protection device for vehicles, in particular motor vehicles
DE2225173A1 (en) * 1971-05-28 1972-12-14 Allied Chemical Corp., Morristown, N.J. (V.StA.) Multiple pyro system
DE2315070A1 (en) * 1972-03-29 1973-10-11 Allied Chem SAFETY INFLATER

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3619937A1 (en) * 1986-06-13 1987-12-17 Bayerische Motoren Werke Ag Safety air bag
US4819960A (en) * 1986-11-21 1989-04-11 Breed Automotive Technology, Inc. Angled vehicle crash sensor
WO1990015732A1 (en) * 1988-05-21 1990-12-27 Messerschmitt-Bölkow-Blohm Gmbh Safety arrangement for motor vehicles
US5011181A (en) * 1988-05-21 1991-04-30 Messerschmitt-Boelkow-Blohm Gmbh Steering wheel mounted air bag module including electromagnetically shielded sensor
DE3941606A1 (en) * 1989-12-16 1991-06-20 Messerschmitt Boelkow Blohm Sensor triggering restraining system esp. air-bag in motor vehicle - has electronic power switch detecting acceleration and requiring no external power source
WO1991014601A1 (en) * 1990-03-23 1991-10-03 Siemens Aktiengesellschaft Arrangement for securing an airbag on the steering wheel of a vehicle
US5324074A (en) * 1991-11-07 1994-06-28 Christian Ronald A Airbag system
US5505483A (en) * 1993-04-28 1996-04-09 Nippondenso Co., Ltd. Airbag safety module for vehicle
EP0688701A1 (en) * 1994-06-20 1995-12-27 Morton International, Inc. Windowed airbag cover and method of manufacture thereof
US5516143A (en) * 1994-06-20 1996-05-14 Morton International, Inc. Windowed airbag cover

Also Published As

Publication number Publication date
DE2711192C2 (en) 1986-10-30

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee