DE2516113A1 - Safety mounting for car seat - with inertial belt between seat back and roof to absorb seat inertia - Google Patents

Safety mounting for car seat - with inertial belt between seat back and roof to absorb seat inertia

Info

Publication number
DE2516113A1
DE2516113A1 DE19752516113 DE2516113A DE2516113A1 DE 2516113 A1 DE2516113 A1 DE 2516113A1 DE 19752516113 DE19752516113 DE 19752516113 DE 2516113 A DE2516113 A DE 2516113A DE 2516113 A1 DE2516113 A1 DE 2516113A1
Authority
DE
Germany
Prior art keywords
seat
vehicle
roof
belt
backrest
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.)
Pending
Application number
DE19752516113
Other languages
German (de)
Inventor
Ulrich Dr Seiffert
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.)
Volkswagen AG
Original Assignee
Volkswagen 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 Volkswagen AG filed Critical Volkswagen AG
Priority to DE19752516113 priority Critical patent/DE2516113A1/en
Publication of DE2516113A1 publication Critical patent/DE2516113A1/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42Seats 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
    • B60N2/433Safety locks for back-rests, e.g. with locking bars activated by inertia
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60NSEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/02Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
    • B60N2/22Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the back-rest being adjustable

Abstract

The top edge of the seat back (4) is fitted with a special safety belt (5) whose other end is secured on an inertial reel (6) mounted under the roof of the vehicle. The belt secures the seat back during a collision so that the seat belts do not pull the seat back out of its mountings. The belt support is lighter and more versatile than mechanical bracing and adapts itself to fit the different seat adjustment positions. It can be fitted to existing vehicles without great modifications.

Description

Verstellbarer Sitz für Fahrzeuge, insbesondere Kraftfahrzeuge Die Erfindung bezieht sich auf einen verstellbaren Sitz für Fahrzeuge, insbesondere Kraftfahrzeuge, mit einem Sitzkissen und einer in der Neigung gegenüber dem Sitzkissen verstellbaren Rückenlehne. Adjustable seat for vehicles, in particular motor vehicles Invention relates to an adjustable seat for vehicles, in particular Motor vehicles with a seat cushion and one inclined with respect to the seat cushion adjustable backrest.

Insbesondere bei wahrzeugunfälle. treten an der Rückenlehne von Fahrzeugsitzen erhebliche Kräfte auf, die infolge des relativ großen Hebelarms an der quer zur Fahrzeuglängsrichtung verlaufenden, horizontalen Schwenkachse große Drehmomente erzeugen. Um den Sicherheitsanforderungen in einem Fahrzeug gerecht zu werden, müssen daher der Rahmen und die Gelenke der Rückenlehne genügend stark ausgebildet sein. Diese Verhältnisse werden noch verschärft, wenn ein oberer Verankerungspunkt eines dem Fahrzeugsitz zugeordneten Sicherheitsgurtes unmittelbar an der Rückenlehne befestigt wird, um so unabhängig von der eingestellten Sitzposition eine möglichst günstige Lage des Gurtes am Körper des Fahrzeuginsassen zu erzielen. Bei einem Rückhaltefall werden dann über den Gurtverankerungspunkt Kräfte von solcher Größenordnung in die Rückenlehne eingeleitet, daß sie nur noch durch erhebliche,massive Verstärkungen der Rückenlehne und des Scharniers aufgenommen werden können.Especially in the case of vehicle accidents. step on the backrest of vehicle seats considerable forces due to the relatively large lever arm on the transverse to Vehicle longitudinal direction, horizontal pivot axis large torques produce. In order to meet the safety requirements in a vehicle, must therefore the frame and the joints of the backrest must be made strong enough. These relationships are exacerbated when an upper anchor point is a The seat belt assigned to the vehicle seat is attached directly to the backrest is, regardless of the seat position set as favorable as possible To achieve location of the belt on the body of the vehicle occupant. In the event of a restraint forces of such magnitude are then transferred via the belt anchorage point to the Backrest initiated that it is only supported by substantial, massive reinforcements the The backrest and the hinge can be added.

Bei einer bekannten Sitzkonstruktion ist die Rückenlehne mit einem säulenförmigen Bauteil über die Kopfstütze hinaus nach oben verlängert und in einer Puhrung des Fahrzeugdachs gehalten.In a known seat construction, the backrest is with a columnar component extended upward beyond the headrest and in one Puhrung the vehicle roof held.

Diese Ausführung ist jedoch relativ aufwendig und schränkt vor allem die Verstellbarkeit des Sitzes und insbesondere der Rükkenlehne in erheblichem Maße ein.However, this design is relatively complex and, above all, restricts the adjustability of the seat and especially the backrest to a considerable extent a.

Die der Erfindung zugrundeliegende Aufgabe besteht daher darin, bei einem Fahrzeugsitz der eingangs genannten Bauart eine Möglichkeit zu schaffen, um die bei einem Fahrzeugunfall auf die Rückenlehne wirkenden Kräfte möglichst günstig und ohne den Zwang zur Verstärkung der Sitzlehnenkonstruktion abzuleiten.The object on which the invention is based therefore consists in a vehicle seat of the type mentioned to create a possibility to the forces acting on the backrest in the event of a vehicle accident as favorably as possible and without deriving the need to reinforce the seat back structure.

Darüberhinaus soll die Verstellbarkeit des Sitzes und insbesondere der Rückenlehne nicht beeinträchtigt werden.In addition, the adjustability of the seat and in particular the backrest are not impaired.

Die Lösung dieser Aufgabe erfolgt gemäß der Erfindung dadurch, daß das freie Ende der Rückenlehne mittels eines flexiblen Verbindungselementes unter Zwischenschaltung einer das Verbindungse lement aufgewickelt tragenden Aufwickelvorrichtung mit einer zugeordneten, in Abhängigkeit von der Fahrzeugverzögerung eingreifenden Sperrvorrichtung an dem Dach des Fahrzeugs gehalten ist. Zweckmäßigerweise kann dabei das flexible Verbindungselement durch ein von den Sioherheitsgurten her bekanntes Gurtband gebildet sein. Auch die Aufwickelvorrichtung kann den bei Sicherheitsgurten häufig verwendeten Aufwickelvorrichtungen entsprechen und am Dach des Fahrzeugs befestigt sein.This object is achieved according to the invention in that the free end of the backrest by means of a flexible connecting element Interposition of a winding device that carries the connection element wound up with an assigned, intervening depending on the vehicle deceleration Locking device is held on the roof of the vehicle. Appropriately can the flexible connecting element is a familiar one from safety belts Webbing be formed. The winder can also be used with seat belts frequently used rewinders and on the roof of the vehicle be attached.

Der Vorteil der erfindungsgemäßen Lösung besteht darin, daß auf einfache Weise und mit relativ geringem Aufwand die Belastbarkeit der Rückenlehne ohne Verstärkung seiner Bauelemente erheblich erhöht werden kann. Damit ist die Voraussetzung geschaffen, daß ein oberer Verankerungspunkt für den dem Sitz zugeordneten Sicherheitsgurt unmittelbar an der Rückenlehne angebracht werden kann. Die Flexibilität des beispielsweise durch ein Gurtband gebildeten Verbindungselementes ermöglicht zusammen mit der Aufwickelvorrichtung eine weitgehende Verstellbarkeit des Sitzes, insbesondere auch hinsichtlich der Neigung der Rückenlehne.The advantage of the solution according to the invention is that simple Wise and with relatively little effort, the resilience of the backrest without reinforcement its components can be increased significantly. This creates the prerequisite that an upper anchorage point for the seat assigned Seat belt can be attached directly to the backrest. The flexibility of the example The connecting element formed by a belt strap is made possible together with the winding device extensive adjustability of the seat, especially with regard to the Backrest inclination.

Weitere Vorteile und die wesentlichen Merkmale der Erfindung sind in der nachfolgenden Beschreibung enthalten, die das in der Zeichnung gezeigte Ausführungsbeispiel der Erfindung erläutert.Further advantages and the essential features of the invention are contained in the following description of the embodiment shown in the drawing the invention explained.

Die Zeichnung zeigt in schematischer Darstellungsweise in einer aufgeschnittenen Teilansicht ein Fahrzeug 1 mit einem in dem Fahrzeugsitz verstellbar gehaltenen Fahrzeugsitz 2. Der Fahrzeugsitz 2 weist ein Sitzkissen 3 und eine gegenüber dem Sitzkissen um eine Schwenkachse 7 verstellbare Rücklehne 4 auf. Am oberen Ende des Rahmens der Rückenlehne 4 ist ein flexibles Gurtband 5 befestigt, das in seiner Ausführung den bei Sicherheitsgurten üblichen Gurtbändern entspricht. Das Gurtband 5 führt zu einer Aufwickelvorrichtung 6, die möglichst weit hinter dem Fahrzeugsitz 2 am Dach 8 des Fahrzeugs befestigt ist. Auch die Aufwickelvorrichtung entspricht den bei Sicherheitsgurtanordnungen häufig verwendeten Aufwickelvorrichtungen und weist eine das Gurtband unter einer gewissen Spannung haltende Aufwickelfeder auf, die bei einer Verstellung des Sitzes 2 bzw. der Rückenlehne 4 Gurtband durch Abwickeln freigibt bzw. überschüssiges Gurtband aufwickelt.The drawing shows a schematic representation in a cut open Partial view of a vehicle 1 with a seat that is adjustable in the vehicle seat Vehicle seat 2. The vehicle seat 2 has a seat cushion 3 and one opposite the Seat cushion about a pivot axis 7 adjustable backrest 4. At the top of the Frame of the backrest 4, a flexible belt strap 5 is attached, which in his Execution corresponds to the usual belt straps for seat belts. The webbing 5 leads to a winding device 6, which is as far behind the vehicle seat as possible 2 is attached to the roof 8 of the vehicle. The winder also corresponds the retractors commonly used in seat belt assemblies and has a winding spring that holds the webbing under a certain tension, the belt strap when adjusting the seat 2 or the backrest 4 by unwinding releases or winds up excess webbing.

Außerdem weist die Aufwickelvorrichtung 6 auch die bei Sicherheitsgurtaufwickelvorrichtungen übliche, fahrzeugverzögerungsabhängig eingreifende Sperrvorrichtung auf, die beispielsweise bei einem Fahrzeugunfall das Abwickeln des Gurtbandes von der Aufwickelrolle verhindert und so eine sichere Halterung des oberen Endes der Rückenlehne gewährleistet. Auch ein bei Sicherheitsgurtanordnungen übliches Kraftbegrenzungselement könnte hier mit Vorteil angewendet werden.In addition, the retractor 6 also has the seat belt retractors customary, vehicle deceleration-dependent intervening locking device, for example prevents the belt from unwinding from the take-up roll in the event of a vehicle accident and thus a secure mounting of the upper end of the backrest is guaranteed. Even one with seat belt arrangements usual force limiting element could be used here with advantage.

Claims (3)

ANSPRUCHEEXPECTATIONS 1. Verstellbarer Sitz für Fahrzeuge, insbesondere Eraftfahrzeuge, mit einem Sitzkissen und einer in der Neigung gegenüber dem Sitzkissen verstellbaren Rückenlehne, dadurch gekennzeichnet, daß das freie Ende der Rückenlehne (4) mittels s eines flexiblen Verbindungselementes (5) unter Zwischenschaltung einer das Verbindungselement aufgewickelt tragenden Aufwickelvorrichtung (6) mit einer zugeordneten, in Abhängigkeit von der Fahrzeugverzögerung eingreifenden Sperrvorrichtung an dem Dach (8) des Fahrzeugs (1) gehalten ist.1.Adjustable seat for vehicles, especially electric vehicles, with a seat cushion and one adjustable in inclination relative to the seat cushion Backrest, characterized in that the free end of the backrest (4) means s a flexible connecting element (5) with the interposition of the connecting element wound carrying winding device (6) with an associated, dependent from the vehicle deceleration engaging locking device on the roof (8) of the vehicle (1) is held. 2. Sitz nach Anspruch 1, dadurch gekennzeichnet, daß das flexible Verbindungselement (5) durch ein Gurtband gebildet ist.2. Seat according to claim 1, characterized in that the flexible Connecting element (5) is formed by a belt strap. 3. Sitz nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Bufwickelvorrichtung (6) am Dach (8) des Fahrzeugs befestigt ist.3. Seat according to claim 1 or 2, characterized in that the Bufwickelvorrichtung (6) is attached to the roof (8) of the vehicle. L e e r s e i t eL e r s e i t e
DE19752516113 1975-04-12 1975-04-12 Safety mounting for car seat - with inertial belt between seat back and roof to absorb seat inertia Pending DE2516113A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752516113 DE2516113A1 (en) 1975-04-12 1975-04-12 Safety mounting for car seat - with inertial belt between seat back and roof to absorb seat inertia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752516113 DE2516113A1 (en) 1975-04-12 1975-04-12 Safety mounting for car seat - with inertial belt between seat back and roof to absorb seat inertia

Publications (1)

Publication Number Publication Date
DE2516113A1 true DE2516113A1 (en) 1976-10-21

Family

ID=5943756

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752516113 Pending DE2516113A1 (en) 1975-04-12 1975-04-12 Safety mounting for car seat - with inertial belt between seat back and roof to absorb seat inertia

Country Status (1)

Country Link
DE (1) DE2516113A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850479A1 (en) * 1977-12-09 1979-06-13 Ara Inc IMPACT-PROOF SEAT FOR FLOOR AND AIRCRAFT VEHICLES, ESPECIALLY FOR AIRCRAFT
US5390977A (en) * 1993-05-24 1995-02-21 General Motors Corporation D-ring for seat belt restraints
US5401072A (en) * 1992-10-05 1995-03-28 Starcraft Automotive Corporation Tethered seat back for preventing rearward movement of a seat back during a vehicle rear-end collision
US5533775A (en) * 1993-08-26 1996-07-09 Cyliax; Uwe Restraining system for foldable rear-seat back rests in motor vehicles
DE102011107919A1 (en) * 2011-07-19 2013-01-24 Thomas Peipelmann Adjustable device for reinforcement of sport or bucket seat applied in motor vehicle between seat or seat backrest and vehicle chassis, comprises connecting elements, which produce adjustable connection in longitudinal direction

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2850479A1 (en) * 1977-12-09 1979-06-13 Ara Inc IMPACT-PROOF SEAT FOR FLOOR AND AIRCRAFT VEHICLES, ESPECIALLY FOR AIRCRAFT
US5401072A (en) * 1992-10-05 1995-03-28 Starcraft Automotive Corporation Tethered seat back for preventing rearward movement of a seat back during a vehicle rear-end collision
US5390977A (en) * 1993-05-24 1995-02-21 General Motors Corporation D-ring for seat belt restraints
US5533775A (en) * 1993-08-26 1996-07-09 Cyliax; Uwe Restraining system for foldable rear-seat back rests in motor vehicles
DE102011107919A1 (en) * 2011-07-19 2013-01-24 Thomas Peipelmann Adjustable device for reinforcement of sport or bucket seat applied in motor vehicle between seat or seat backrest and vehicle chassis, comprises connecting elements, which produce adjustable connection in longitudinal direction

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