DE3925995A1 - Deployment and retraction device for car seat headrests - responds to operation of switch by sensors of wt. of occupant in seat and position attained - Google Patents

Deployment and retraction device for car seat headrests - responds to operation of switch by sensors of wt. of occupant in seat and position attained

Info

Publication number
DE3925995A1
DE3925995A1 DE3925995A DE3925995A DE3925995A1 DE 3925995 A1 DE3925995 A1 DE 3925995A1 DE 3925995 A DE3925995 A DE 3925995A DE 3925995 A DE3925995 A DE 3925995A DE 3925995 A1 DE3925995 A1 DE 3925995A1
Authority
DE
Germany
Prior art keywords
headrest
seat
headrests
switch
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.)
Ceased
Application number
DE3925995A
Other languages
German (de)
Inventor
Peter Prof Dipl Ing Dr Knoll
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DE3925995A priority Critical patent/DE3925995A1/en
Publication of DE3925995A1 publication Critical patent/DE3925995A1/en
Ceased 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/809—Head-rests movable or adjustable vertically slidable
    • B60N2/832—Head-rests movable or adjustable vertically slidable movable to an inoperative or stowed position
    • 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
    • B60N2/80—Head-rests
    • B60N2/806—Head-rests movable or adjustable
    • B60N2/809—Head-rests movable or adjustable vertically slidable
    • B60N2/829—Head-rests movable or adjustable vertically slidable characterised by their adjusting mechanisms, e.g. electric motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

Each headrest (11) is deployed from and retracted into the back of the seat (10) by an electric drive (for high precision a stepping motor) (12) under the control of a switch (13) connected to a wt. sensor (14) in the squab. The position of the headrest (11) is fed back from another sensor (15) to the switch (13). A predetermined desired positon of the headrest, including a desired tilt, can be stored in an operating unit (16). ADVANTAGE - Headrests are deployed from actually occupied seats only so that driver's vision is maximised without increase in risk to safety.

Description

Stand der TechnikState of the art

Die Erfindung betrifft eine Vorrichtung zum Aus- und Einfahren von in Kraftfahrzeugen angeordneten Kopfstützen. Die an den Sitzen vor­ gesehenen Kopfstützen verschlechtern mitunter, insbesondere beim Rückwärtsfahren, die Sichtverhältnisse des Fahrers. Ein Kraftfahr­ zeughersteller bietet deshalb als Sonderausstattung eine Vorrichtung zum Hoch- und Abklappen der hinteren Kopfstützen beim Einlegen des Rückwärtsgangs an. Das Hoch- und Abklappen ist unabhängig davon, ob der entsprechende Rückbanksitz besetzt ist oder nicht. Es kann eine Gefahrensituation für die auf der Rückbank sitzenden Personen auf­ treten, die dann gegeben ist, wenn auf das gerade rückwärtsfahrende Fahrzeug, dessen hintere Kopfstützen somit abgeklappt sind, ein anderes Fahrzeug auffährt.The invention relates to a device for extending and retracting headrests arranged in motor vehicles. The one in front of the seats seen headrests sometimes deteriorate, especially when Reversing, the driver's visibility. A motor vehicle The tool manufacturer therefore offers a device as special equipment to raise and lower the rear headrests when inserting the Reverse gear on. Folding up and down is independent of whether the corresponding back seat is occupied or not. It can be Dangerous situation for the people sitting in the back seat kick, which is given when on the currently reversing Vehicle with the rear headrests folded down other vehicle drives up.

Der Erfindung liegt die Aufgabe zugrunde, eine einfache Vorrichtung zum Aus- und Einfahren von Kopfstützen anzugeben, die unter gege­ benen Umständen die besten Sichtverhältnisse für den Fahrer ohne Er­ höhung eines Sicherheitsrisikos ermöglicht. The invention has for its object a simple device for extending and retracting headrests to be specified under the best possible visibility for the driver without him allows an increase in a security risk.  

Diese Aufgabe wird durch die im Hauptanspruch angegebenen Merkmale gelöst.This object is achieved by the features specified in the main claim solved.

Vorteile der ErfindungAdvantages of the invention

Die erfindungsgemäße Vorrichtung weist den Vorteil auf, daß nur die Kopfstützen derjenigen Sitze ausgefahren sind, die auch tatsächlich besetzt sind. Die Rundumsicht aus dem Fahrzeug ist erheblich ver­ bessert, wenn das Fahrzeug nur durch den Fahrer besetzt ist, weil insbesondere die am Beifahrersitz vorgesehene Kopfstütze selbst­ ständig eingefahren ist, die die Sicht des Fahrers zum Teil erheb­ lich behindert. Das sensorgesteuerte Ausfahren der Kopfstützen bei festgestellter Sitzbelegung stellt in jedem Fall die Schutzfunktion der Kopfstütze sicher, wobei keine nennenswerte zusätzliche Sicht­ behinderung entsteht.The device according to the invention has the advantage that only the Headrests of those seats that are actually extended are occupied. The all-round view from the vehicle is considerably reduced improves if the vehicle is only occupied by the driver because especially the headrest provided on the front passenger seat itself is constantly retracted, which partially increases the driver's view Lich disabled. The sensor-controlled extension of the headrests The determined seat occupancy always provides the protective function the headrest securely, with no appreciable additional view disability arises.

Eine vorteilhafte Weiterbildung und Verbesserung der im Hauptan­ spruch angegebenen Vorrichtung ist möglich durch die Vorgabe einer Soll-Position für die ausgefahrene Kopfstütze. Die individuell an­ genehmste Position der Kopfstütze für eine oder unterschiedliche Personen ist abspeicherbar und individuell abrufbar.An advantageous training and improvement in the main Say specified device is possible by specifying a Target position for the extended headrest. The individually approved position of the headrest for one or different People can be saved and called up individually.

Die erfindungsgemäße Vorrichtung wird anhand der Figur näher be­ schrieben. Diese zeigt eine erfindungsgemäße Vorrichtung zum Aus- und Einfahren von Kopfstützen.The device according to the invention will be described in more detail with reference to the figure wrote. This shows an inventive device for Extending and retracting headrests.

Die Figur zeigt einen Kraftfahrzeugsitz 10, dem eine Kopfstütze 11 zugeordnet ist. Zum Aus- und Einfahren der Kopfstütze ist ein An­ trieb 12 vorgesehen, der Steuersignale von einem Schaltgerät 13 er­ hält. Die von einem im Sitz 10 angeordneten Sensor 14 zum Fest­ stellen der Sitzbelegung und die von einem Positionssensor 15 zum Feststellen der Position der Kopfstütze 11 sowie die von einem Be­ diengerät 16 abgegebenen Signale werden jeweils dem Schaltgerät 13 zugeführt.The figure shows a motor vehicle seat 10 to which a headrest 11 is assigned. To extend and retract the headrest, a drive 12 is provided, the control signals from a switching device 13 he holds. The sensor 14 arranged in the seat 10 for determining the seat occupancy and that of a position sensor 15 for determining the position of the headrest 11 and the signals emitted by an operating device 16 are each supplied to the switching device 13 .

Die Vorrichtung arbeitet folgendermaßen: Das vom Sensor 14 abgegebene Signal zum Feststellen der Sitzbelegung veranlaßt das Schaltgerät 13 zum Abgeben von Steuersignalen an den Antrieb 12 der Kopfstütze 11. Bei Sitzbelegung wird die Kopf­ stütze 11 ausgefahren und entsprechend bei Nichtbelegung wieder ein­ gefahren. Anstelle der in der Figur gezeigten linearen Bewegung der Kopfstütze 11 ist auch eine Auf- und Abklappbewegung oder eine andere der Sitz- oder Umgebungsgeometrie angepaßte Bewegung vor­ sehbar. Der im Sitz 10 angeordnete Sensor 14 ist beispielsweise ein Folienschalter, der einen Kontakt bei Druckbelastung schließt. Die beschriebene Vorrichtung stellt sicher, daß nur die Kopfstützen 11 derjenigen Sitze 10 ausgefahren sind, die tatsächlich belegt sind.The device operates as follows: The signal emitted by the sensor 14 to determine the seat occupancy causes the switching device 13 to emit control signals to the drive 12 of the headrest 11 . When the seat is occupied, the headrest 11 is extended and accordingly retracted when not in use. Instead of the linear movement of the headrest 11 shown in the figure, an up and down movement or another movement adapted to the seat or surrounding geometry can also be seen. The sensor 14 arranged in the seat 10 is, for example, a film switch which closes a contact when pressure is applied. The described device ensures that only the headrests 11 of those seats 10 are extended which are actually occupied.

Die Kopfstütze 11 kann beispielsweise in zwei Positionen (hochge­ klappt, weggeklappt) gesteuert werden. In einer Weiterbildung ist vorgesehen, daß die Kopfstütze 11 im ausgefahrenen Zustand eine vor­ gebbare Soll-Position einnimmt. Die Soll-Position ist beispielsweise am Bediengerät 16 für eine oder vorzugsweise mehrere Personen indi­ viduell vorgebbar, speicherbar und entsprechend abrufbar. In einer einfachen Ausgestaltung ist eine Steuerung ohne Rückmeldung der Kopfstützen Ist-Position vorgesehen. Bei der Verwendung eines Schrittmotors als Antrieb 12 ist auch mit einer Steuerung eine große Genauigkeit erreichbar. In einer weiteren Ausgestaltung ist eine Überwachung oder auch eine Regelung der Kopfstützen Ist-Position vorgesehen, die mit dem Positionssensor 15 ermittelt wird.The headrest 11 can be controlled, for example, in two positions (folded up, folded away). In a further development it is provided that the headrest 11 assumes a predetermined target position in the extended state. The target position can, for example, be individually specified, stored and appropriately called up on the operating device 16 for one or preferably several people. In a simple embodiment, control without feedback of the actual head restraints is provided. When using a stepper motor as drive 12 , great accuracy can also be achieved with a controller. In a further embodiment, monitoring or regulation of the actual head restraints is provided, which is determined with the position sensor 15 .

Claims (5)

1. Vorrichtung zum Aus- und Einfahren von Kopfstützen (11), an Kraftfahrzeugsitzen (10), mit einem Sensor (14) zum Feststellen der Sitzbelegung, dessen Ausgangsingal das Aus- und Einfahren der Stütze (11) steuert.1. Device for extending and retracting headrests ( 11 ) on motor vehicle seats ( 10 ), with a sensor ( 14 ) for determining the seat occupancy, the output signal of which controls the extension and retraction of the support ( 11 ). 2. Vorrichtung nach Anspruch 1, mit einem Bediengerät (16), in dem wenigstens eine Soll-Position der ausgefahrene Kopfstütze (11) ab­ gelegt ist.2. Device according to claim 1, with an operating device ( 16 ) in which at least one target position of the extended headrest ( 11 ) is placed. 3. Vorrichtung nach Anspruch 1 oder 2, mit einem als Schrittmotor ausgebildeten Antrieb (12) der Kopfstütze (11).3. Device according to claim 1 or 2, with a drive ( 12 ) of the headrest ( 11 ) designed as a stepping motor. 4. Vorrichtung nach einem der vorhergehenden Ansprüche, mit einem Positionssensor (15) zum Erfassen der Ist-Position der Kopfstütze (11), dessen Ausgangssignal einem Schaltgerät (13) zum Überwachen oder Regeln der Ist-Position der Kopfstütze (11) zugeführt ist.4. Device according to one of the preceding claims, with a position sensor ( 15 ) for detecting the actual position of the headrest ( 11 ), the output signal of a switching device ( 13 ) for monitoring or regulating the actual position of the headrest ( 11 ) is supplied. 5. Vorrichtung nach Anspruch 1 bei der die Kopfstütze (11) sensorgesteuert zwischen 2 Positionen hin- und herklappbar ist.5. The device according to claim 1, wherein the headrest ( 11 ) sensor-controlled between 2 positions can be folded back and forth.
DE3925995A 1989-08-05 1989-08-05 Deployment and retraction device for car seat headrests - responds to operation of switch by sensors of wt. of occupant in seat and position attained Ceased DE3925995A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3925995A DE3925995A1 (en) 1989-08-05 1989-08-05 Deployment and retraction device for car seat headrests - responds to operation of switch by sensors of wt. of occupant in seat and position attained

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3925995A DE3925995A1 (en) 1989-08-05 1989-08-05 Deployment and retraction device for car seat headrests - responds to operation of switch by sensors of wt. of occupant in seat and position attained

Publications (1)

Publication Number Publication Date
DE3925995A1 true DE3925995A1 (en) 1991-02-07

Family

ID=6386614

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3925995A Ceased DE3925995A1 (en) 1989-08-05 1989-08-05 Deployment and retraction device for car seat headrests - responds to operation of switch by sensors of wt. of occupant in seat and position attained

Country Status (1)

Country Link
DE (1) DE3925995A1 (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4227697A1 (en) * 1992-08-21 1994-02-24 Daimler Benz Ag Back seat for vehicle - has central section with upholstery stretched adjustably over head support and anchored by spring or elastic band
EP0678418A1 (en) * 1994-02-25 1995-10-25 FIAT AUTO S.p.A. A headrest for motor vehicle seats, in particular for car seats
DE19834708A1 (en) * 1998-07-31 2000-02-03 Bayerische Motoren Werke Ag Motor vehicle has drive which extends headrest of seat to predetermined position when ignition lock is operated, and predetermined height is legally prescribed minimum height of headrest
WO2000021785A1 (en) * 1998-10-14 2000-04-20 Robert Bosch Gmbh Device for transmitting signals to one or more circuits integrated into the head rest of a motor vehicle seat
GB2383530A (en) * 2001-10-30 2003-07-02 Lear Corp Automatic headrest adjustment using sensors
WO2009073971A1 (en) * 2007-12-11 2009-06-18 Magna Seating Inc. Powered retracting head restraint
US8162392B2 (en) 2004-09-27 2012-04-24 Lear Corporation Vehicle seat having active head restraint system
WO2013088264A1 (en) * 2011-12-17 2013-06-20 Ozkan Sebahattin Automatic head rest (head support) for motor vehicles
WO2014123752A1 (en) * 2013-02-06 2014-08-14 Bose Corporation Providing speakers in a vehicle seat
CN110843626A (en) * 2018-08-21 2020-02-28 温泽机械和制模(2009)有限责任公司 Automatic stowing and deploying vehicle headrest

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847795A1 (en) * 1977-12-30 1979-07-12 Nissan Motor DEVICE FOR VERTICAL ADJUSTMENT OF THE HEADREST ON A MOTOR VEHICLE SEAT
DE3440525C2 (en) * 1984-11-06 1988-07-28 Brose Fahrzeugteile Gmbh & Co Kg, 8630 Coburg, De
US4807934A (en) * 1987-01-23 1989-02-28 Nippon Soken, Inc. Device for moving up and down and tilting a headrest of a vehicle seat

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2847795A1 (en) * 1977-12-30 1979-07-12 Nissan Motor DEVICE FOR VERTICAL ADJUSTMENT OF THE HEADREST ON A MOTOR VEHICLE SEAT
DE3440525C2 (en) * 1984-11-06 1988-07-28 Brose Fahrzeugteile Gmbh & Co Kg, 8630 Coburg, De
US4807934A (en) * 1987-01-23 1989-02-28 Nippon Soken, Inc. Device for moving up and down and tilting a headrest of a vehicle seat

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4227697A1 (en) * 1992-08-21 1994-02-24 Daimler Benz Ag Back seat for vehicle - has central section with upholstery stretched adjustably over head support and anchored by spring or elastic band
EP0678418A1 (en) * 1994-02-25 1995-10-25 FIAT AUTO S.p.A. A headrest for motor vehicle seats, in particular for car seats
DE19834708B4 (en) * 1998-07-31 2010-06-02 Bayerische Motoren Werke Aktiengesellschaft Motor vehicle with at least one seat and an associated headrest
DE19834708A1 (en) * 1998-07-31 2000-02-03 Bayerische Motoren Werke Ag Motor vehicle has drive which extends headrest of seat to predetermined position when ignition lock is operated, and predetermined height is legally prescribed minimum height of headrest
WO2000021785A1 (en) * 1998-10-14 2000-04-20 Robert Bosch Gmbh Device for transmitting signals to one or more circuits integrated into the head rest of a motor vehicle seat
US6424055B1 (en) 1998-10-14 2002-07-23 Robert Bosch Gmbh Device for transmitting signals to one or more circuits integrated into the head rest of a motor vehicle seat
GB2383530A (en) * 2001-10-30 2003-07-02 Lear Corp Automatic headrest adjustment using sensors
GB2383530B (en) * 2001-10-30 2005-07-06 Lear Corp Automatic headrest adjustment control system for a vehicle seat assembly
US7145263B2 (en) 2001-10-30 2006-12-05 Lear Corporation Automatic headrest adjustment control system for a vehicle seat assembly
US8434818B2 (en) 2004-09-27 2013-05-07 Lear Corporation Vehicle seat having active head restraint
US8162392B2 (en) 2004-09-27 2012-04-24 Lear Corporation Vehicle seat having active head restraint system
US8215709B2 (en) 2004-09-27 2012-07-10 Lear Corporation Vehicle seat having active head restraint system
US8894144B2 (en) 2004-09-27 2014-11-25 Lear Corporation Vehicle seat having active head restraint
WO2009073971A1 (en) * 2007-12-11 2009-06-18 Magna Seating Inc. Powered retracting head restraint
WO2013088264A1 (en) * 2011-12-17 2013-06-20 Ozkan Sebahattin Automatic head rest (head support) for motor vehicles
WO2014123752A1 (en) * 2013-02-06 2014-08-14 Bose Corporation Providing speakers in a vehicle seat
US8913777B2 (en) 2013-02-06 2014-12-16 Bose Corporation Providing speakers in a vehicle seat
CN110843626A (en) * 2018-08-21 2020-02-28 温泽机械和制模(2009)有限责任公司 Automatic stowing and deploying vehicle headrest

Similar Documents

Publication Publication Date Title
EP1077832B1 (en) Adjustable vehicle seat with horizontal seat adjustment and/or seat height adjustment and/or seat depth adjustment and neck-rest that can be displaced by an electric motor and guided by a sensor system influenced by the size of the user
DE19651670C1 (en) Device to adjust vehicle seat to correct sitting position
EP0456646B1 (en) Cabriolet-type motor vehicle with rollbar
DE3843624C2 (en) Headrest adjustment device for vehicle seats
DE102019100816A1 (en) VEHICLE SEAT BELT WITH AIR BAG CHANNELS
EP1727702B1 (en) Method for adjusting the components of a seat
DE4042723C2 (en) Method for generating a warning signal in a motor vehicle with occupant protection devices
EP1261505B1 (en) Method and system for adjusting parameters that are relevant for operating a motor vehicle
DE10250416A1 (en) Automatic headrest adjustment control system for a vehicle seat assembly
DE102019100833A1 (en) VEHICLE SEAT BASE WITH ANCHORED AIRBAG MACHINERY
WO2004069584A1 (en) Device for adjusting at least one vehicle seat
DE19729226B4 (en) Airbag system for protecting an occupant of a vehicle
DE3925995A1 (en) Deployment and retraction device for car seat headrests - responds to operation of switch by sensors of wt. of occupant in seat and position attained
EP3744577B1 (en) Device for monitoring a steering wheel position of a motor vehicle
WO2000027665A1 (en) Method and device for adjusting a vehicle seat
DE10353020A1 (en) Vehicle seat, especially a car seat, has a control unit that uses the pressures measured in fluid bubbles incorporated in the seat part and backrest to automatically adjust the attitude and position of seat cushion and backrest
DE19826662A1 (en) Control of inflation behavior of airbag esp. front airbag of motor vehicle
DE10242113B4 (en) Device for detecting a sitting position of an occupant in a vehicle
WO2020178379A1 (en) Side airbag arrangement in a vehicle seat
DE10312119A1 (en) Device for automatically moving a motor vehicle seat into a given position, has an adjusting drive and a control unit with sensors
DE19710836C2 (en) Adjustment device in a motor vehicle
DE19853322B4 (en) Restraint system for a vehicle occupant
DE102019200813B4 (en) Method for operating a restraint system and restraint system for a vehicle
DE10048270A1 (en) Unit for adjusting position of at least 1 vehicle unit depending on position of component of vehicle seat and vehicle unit has dependent sec. adjuster and seat component has prim
DE10234844B4 (en) Headrest for a vehicle seat

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8131 Rejection