WO2007128850A1 - Personal protection device for an occupant in a vehicle seat - Google Patents

Personal protection device for an occupant in a vehicle seat Download PDF

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Publication number
WO2007128850A1
WO2007128850A1 PCT/ES2007/000228 ES2007000228W WO2007128850A1 WO 2007128850 A1 WO2007128850 A1 WO 2007128850A1 ES 2007000228 W ES2007000228 W ES 2007000228W WO 2007128850 A1 WO2007128850 A1 WO 2007128850A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
collision
backrest
occupant
seat part
Prior art date
Application number
PCT/ES2007/000228
Other languages
Spanish (es)
French (fr)
Inventor
José María VILALTA VIDAL
Original Assignee
Vilalta Vidal Jose Maria
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 Vilalta Vidal Jose Maria filed Critical Vilalta Vidal Jose Maria
Publication of WO2007128850A1 publication Critical patent/WO2007128850A1/en

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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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/986—Side-rests
    • 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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats 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
    • B60N2/4207—Seats 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 characterised by the direction of the g-forces
    • B60N2/4214—Seats 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 characterised by the direction of the g-forces longitudinal
    • B60N2/4221—Seats 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 characterised by the direction of the g-forces longitudinal due to impact coming from the front
    • 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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats 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
    • B60N2/4207—Seats 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 characterised by the direction of the g-forces
    • B60N2/4214—Seats 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 characterised by the direction of the g-forces longitudinal
    • B60N2/4228—Seats 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 characterised by the direction of the g-forces longitudinal due to impact coming from the rear
    • 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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats 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
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42736—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the whole seat
    • 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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats 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
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42727—Seats or parts thereof displaced during a crash involving substantially rigid displacement
    • B60N2/42745—Seats or parts thereof displaced during a crash involving substantially rigid displacement of the back-rest
    • 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
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats 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
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
    • B60N2/4279—Seats or parts thereof displaced during a crash characterised by the triggering system electric or electronic triggering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/18—Anchoring devices
    • B60R22/26—Anchoring devices secured to the seat

Definitions

  • the present invention refers to a personal protection device for vehicles, of the type of device comprising a seat specially adapted to vehicles.
  • the present invention refers to a protection device comprising a seat whose purpose is to protect its occupant from collision forces in the event of an accident.
  • said detection means consist of sensors that detect abnormal accelerations and transmit a detection signal to a control device or devices that are actuated before said abnormal accelerations. Examples of such types of detection means can be found in the airbags, or in the seat belts, respectively.
  • the present invention consists of a method and a safety device for the occupant of a vehicle.
  • the method according to the present invention consists in a method of protecting an occupant of a vehicle seat, said seat comprising a seat part, a backrest part and a safety belt, comprising the following phases : a) detect a collision by means of a sensor system capable of distinguishing between front or rear shock; and depending on the type of crash, b) if the collision detected is a frontal crash or a rollover; then, b1) decrease the relative height of the end of the seat part closest to the back part with respect to the opposite end of the seat part; b2) rotate the backrest part with respect to the seat part bringing said parts closer together; or, b3) rotate the headrest towards the backrest area and the seating area if the collision detected is a frontal collision; and c) if the collision detected is a rear-end collision; then, c1) causing the backing part to increase the angle formed with the seating part, such that both
  • the phases of movement of the different seating parts will be advantageously preceded by a phase of modification of the damping of the devices that allow said movements, so that the movements can be carried out at a higher speed.
  • the seat protects the occupant by covering and placing it in a fetal position, thereby minimizing the chances of occupant injury, also combining a whiplash protection phase. in case of rear shock.
  • the invention also comprises a device for carrying out the process of the invention comprising:
  • - a joint that allows both the seat part and the back part to rotate together with respect to a point of connection to the vehicle; - a collision detection system capable of distinguishing between substantially frontal collision, substantially rear-end collision and overturning;
  • an automatic control device for the said means of variation of the inclination and height depending on the signal emitted by the detection system
  • the automatic means of reaction control device having a signal from the collision system being provided. corresponding to a substantially frontal collision, decrease the height of the end of the seat part closest to the backrest part and move the backrest part decreasing the angle formed by both elements and which, before a signal from the corresponding collision system at a substantially rear-end collision, they decrease the height of the end of the seat part closest to the backrest part and cause the backrest part decreasing the angle between the backrest part and the seat part.
  • the seat will comprise a structure composed of: - a connection to the chassis of the vehicle that allows the rotation of a connection piece and the structure, a connection element that connects said connection with a joint located at the opposite end to the end of the seat part closest to the backrest part,
  • the seat, backrest and headrest parts will have a concave shape to protect the sides of the seat occupant.
  • the headrest having a concave shape, also protects the upper part of the head, acting like a helmet.
  • Figure 1 shows a perspective view of an embodiment of a device according to the present invention.
  • Figure 2 shows a side elevation view of the device of Figure 1.
  • Figure 3 corresponds to another perspective view of the device of Figure 1, with the seat belt in the unfastened position.
  • Figure 4 is a perspective view of the main frame of the device shown in Figures 1 to 3.
  • Figure 5 shows an embodiment of the method object of the present invention, in the event of frontal collision or overturning of a vehicle.
  • Figure 6 shows another embodiment of the process object of the present invention, in case of reaching behind a vehicle.
  • FIGS 1 to 4 show an embodiment of the safety device object of the present invention, which is integrated and takes the form of a vehicle seat.
  • the device has a seat structure composed of a joint -1- that connects the device to the chassis of the vehicle, allowing the rotation of a connection piece -5- with respect to the chassis, and with it, the rest of the device, including the backrest and seat seat parts.
  • the said connection piece -5- connects the connection joint to the chassis -1- with another joint -2- that is located at the opposite end to the end of the frame -6- of the seat closest to the frame -7- of the part seat.
  • This joint -2- allows the backrest part -10- to vary its relative height with respect to the end of the seat part -9- furthest from the backrest part -10-.
  • the structural elements or frames -6-, -7-, corresponding to the seat parts -9-, and backrest -10-, respectively, are joined by a connecting joint -3- which allows to vary the inclination of the part of backrest -10- with respect to the seat part -9-.
  • the structure also has a structural element or frame -8- for headrest -11- attached to the backrest frame -7- through a joint -4-.
  • the means responsible for providing movement to the joints, or these themselves, may be provided with variable damping means that allow adjusting the speed of movement of the joints to the requirements of each moment.
  • variable damping means that allow adjusting the speed of movement of the joints to the requirements of each moment.
  • a viscous shock absorber composed of friction discs and filled with a viscous fluid (damping system) that also includes preload springs responsible for fixing the position of the seat could be incorporated into the joint. In the event of an accident, the action of the preload spring would be disabled by entering the damping system into action.
  • the actuation of the mechanisms that define the position of the seat components could be carried out by electro-electronic, hydraulic or mechanical means.
  • the device is completed with a seat part -9-, which may be of the conventional type, or concave, as shown in the figures.
  • a safety belt -12- will be available for the area immediately above the occupant's knees, in order to obtain assurance of the user's knee position, and whose purpose will be to keep the knees of the user in contact with the seat part -9- in case of an accident.
  • the device also comprises a backing part -10- which may also be of the conventional type, although it will also preferably have a concave shape for greater protection of the occupant's body.
  • the backrest part -10- will have a safety belt -13-, -13'- for the torso of the occupant in the form of "X" with a central clasp -14-, -14'-.
  • safety belts -12-, -13-, -13'- these will preferably have a curved cross-section, for example cylindrical.
  • the safety device also comprises a collision detection system, capable of distinguishing between substantially frontal collision, substantially rear-end collision and overturning.
  • Said device can be made according to known techniques, for example by the arrangement of a series of acceleration sensors, or otherwise.
  • Said detection system emits a signal or signals to an automatic control device, such as for example a logical electronic device, which depending on the signals received from the detection system of collisions proceeds to send the corresponding movement orders to the means of movement of the joints -1-, -2-, -3-, -4-.
  • an automatic control device such as for example a logical electronic device, which depending on the signals received from the detection system of collisions proceeds to send the corresponding movement orders to the means of movement of the joints -1-, -2-, -3-, -4-.
  • FIGs 5 and 6 two possible embodiments of the process object of the present invention are shown in the event of frontal collision or overturning and in case of rear-end collision or reach, respectively.
  • the detection system emits the corresponding signal or signals and, depending on them, the control device orders to decrease the relative height of the end of the seat part -9- closest to the back part -10- with respect to the opposite end of the seat part. This can be done by rotating the corresponding joint -2- of the device described above.
  • the headrest -11- is then rotated in the direction of the backrest area -10- and the seating area -9-, by the corresponding rotation of the joint -4-.
  • the control device can proceed to modify the damping of the joints to Get a response quickly and efficiently.
  • the detection system emits the corresponding signal or signals and, depending on them, the control device orders to make the backup part -10- increase the angle formed with the part of seat -9-, so that both parts tend to align. This can be done by the corresponding rotation of the joint -3- that joins both parts.
  • the headrest -11- will be rotated away from the backrest area -10- and seat -9-.
  • the different phases of the described process will occur in the order indicated.
  • the headrest -11- is then rotated in the direction of the backrest area -10- and the seating area -9-.
  • the seat once it has performed its function of protection and absorption of impact, may return to its initial position to leave room for the occupants so that they can leave on their own foot or be easily rescued.

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

Abstract

The method comprises the following steps: a) detecting a collision by means of a sensor system; (b) if the detected collision is a head-on collision or if the vehicle has rolled over, then b1) reducing the relative height of the end of the seat part nearest the back part with respect to the opposite end of the seat part and b2) rotating the back part with respect to the seat part, bringing said parts closer together; c) if the detected collision is a rear impact, then c1) causing the back part to increase the angle formed with the seat part such that the two parts tend to align with one another and c2) causing the entire seat to describe a general rearward movement.

Description

DISPOSITIVO DE PROTECCIÓN PERSONAL DE UN OCUPANTE DE UN ASIENTO DE UN VEHÍCULO PERSONAL PROTECTION DEVICE OF AN OCCUPANT OF A VEHICLE SEAT
DESCRIPCIÓNDESCRIPTION
La presente invención hace referencia a un dispositivo de protección personal para vehículos, del tipo de dispositivo que comprende un asiento especialmente adaptado a vehículos.The present invention refers to a personal protection device for vehicles, of the type of device comprising a seat specially adapted to vehicles.
En particular, la presente invención hace referencia a un dispositivo de protección que comprende un asiento cuya finalidad es proteger a su ocupante de las fuerzas de colisión en caso de accidente.In particular, the present invention refers to a protection device comprising a seat whose purpose is to protect its occupant from collision forces in the event of an accident.
Actualmente, son sobradamente conocidos por el experto de la materia diversos medios de detección de colisión en un vehículo. Habitualmente, dichos medios de detección consisten en sensores que detectan aceleraciones anormales y transmiten una señal de detección a un dispositivo de control o dispositivos que se accionan ante dichas aceleraciones anormales. Ejemplos de dichos tipos de medios de detección pueden encontrarse en los airbag, o en los cinturones de seguridad, respectivamente.Currently, various means of collision detection in a vehicle are well known to the person skilled in the art. Usually, said detection means consist of sensors that detect abnormal accelerations and transmit a detection signal to a control device or devices that are actuated before said abnormal accelerations. Examples of such types of detection means can be found in the airbags, or in the seat belts, respectively.
También son conocidos dispositivos que comprenden o están asociados a un asiento de un vehículo que tratan de proteger a su ocupante en caso de accidente, tales como por ejemplo, sistemas que accionan un reposacabezas ante una señal proporcionada de un medio de detección de colisión, tal como, por ejemplo, la Patente US6607242 de Mercedes Benz . También resulta conocida la disposición de medios de detección de una colisión asociados a un dispositivo de control que, en función de una señal de colisión, provocan un movimiento del asiento en sentido longitudinal, tal como en la Patente US6435592, o provocar un hundimiento del extremo del asiento más próximo al respaldo, como en las Patentes US6432291 y JP10138810. En todos los casos citados, el objetivo de dichos dispositivos es proteger al ocupante del asiento del denominado latigazo producido por las aceleraciones anormales que se producen durante una colisión. Sin embargo, dichos dispositivos siguen dejando 'el cuerpo del ocupante indefenso ante proyecciones de objetos o incluso frente a los choques que se producen contra los elementos pasivos de seguridad, tales como los cinturones de seguridad.Also known are devices that comprise or are associated with a seat of a vehicle that try to protect its occupant in the event of an accident, such as, for example, systems that drive a headrest against a signal provided by a collision detection means, such such as Mercedes Benz US6607242, for example. Also known is the arrangement of collision detection means associated with a control device that, depending on a collision signal, causes a movement of the seat in the longitudinal direction, such as in US6435592, or causing a sinking of the seat end closest to the backrest, as in US6432291 and JP10138810. In all the cases mentioned, the objective of these devices is to protect the occupant of the seat from the so-called whiplash caused by the abnormal accelerations that occur during a collision. However, these devices still leave 'the body of the occupant helpless against projections of objects or even against shocks that occur against passive safety features such as seat belts.
Es un objetivo de la presente invención dar a conocer un dispositivo de seguridad para el ocupante de un asiento de un vehículo, que, en caso de colisión, protege de forma integral el cuerpo del ocupante. >It is an objective of the present invention to disclose a safety device for the occupant of a vehicle seat, which, in the event of a collision, comprehensively protects the occupant's body. >
Para ello, la presente invención consiste en un procedimiento y un dispositivo de seguridad para el ocupante de un vehículo. En particular, el procedimiento de acuerdo con la presente invención consiste en un procedimiento de protección de un ocupante de un asiento de un vehículo, comprendiendo dicho asiento una parte de asiento, una parte de respaldo y un cinturón de seguridad, que comprende las siguientes fases: a) detectar una colisión mediante un sistema de sensores con capacidad de discernir entre choque frontal o trasero; y en función del tipo de choque, b) si la colisión detectada es un choque frontal o un vuelco; entonces, b1 ) disminuir la altura relativa del extremo de la parte de asiento más próxima a la parte de respaldo con respecto al extremo opuesto de la parte de asiento; b2) hacer girar la parte de respaldo con respecto a la parte de asiento acercando dichas partes entre si; o, b3) hacer girar el reposacabezas hacia la zona de respaldo y la zona de asiento si la colisión detectada es un choque frontal; y c) si la colisión detectada es un choque trasero; entonces , c1 ) hacer que la parte de respaldo aumente el ángulo formado con la parte de asiento, de tal manera que ambas partes tiendan a alinearse; c2) hacer que la totalidad del asiento describa un movimiento general hacia atrás; c3) hacer girar el reposacabezas en sentido contrario al anteriormente indicado si la colisión detectada es un choque trasero.For this, the present invention consists of a method and a safety device for the occupant of a vehicle. In particular, the method according to the present invention consists in a method of protecting an occupant of a vehicle seat, said seat comprising a seat part, a backrest part and a safety belt, comprising the following phases : a) detect a collision by means of a sensor system capable of distinguishing between front or rear shock; and depending on the type of crash, b) if the collision detected is a frontal crash or a rollover; then, b1) decrease the relative height of the end of the seat part closest to the back part with respect to the opposite end of the seat part; b2) rotate the backrest part with respect to the seat part bringing said parts closer together; or, b3) rotate the headrest towards the backrest area and the seating area if the collision detected is a frontal collision; and c) if the collision detected is a rear-end collision; then, c1) causing the backing part to increase the angle formed with the seating part, such that both parts tend to align; c2) make the entire seat describe a general backward movement; c3) rotate the head restraint counterclockwise if the collision detected is a rear-end collision.
De acuerdo con la presente invención, las fases de movimiento de las diferentes partes de asiento vendrán precedidas ventajosamente por una fase de modificación de la amortiguación de los dispositivos que permiten dichos movimientos, de tal manera que los movimientos puedan efectuarse a una velocidad mayor.In accordance with the present invention, the phases of movement of the different seating parts will be advantageously preceded by a phase of modification of the damping of the devices that allow said movements, so that the movements can be carried out at a higher speed.
Mediante el procedimiento objeto de la presente invención, en caso de choque frontal o vuelco, el asiento protege al ocupante cubriéndolo y colocándolo en posición fetal, con lo que se minimizan notablemente las posibilidades de lesión del ocupante, combinando igualmente una fase de protección del latigazo en caso de choque trasero. Durante un accidente, en el que se pueden producir diversos golpes, - A -By means of the procedure object of the present invention, in the event of frontal collision or tipping, the seat protects the occupant by covering and placing it in a fetal position, thereby minimizing the chances of occupant injury, also combining a whiplash protection phase. in case of rear shock. During an accident, in which various blows can occur, - TO -
colisiones o deceleraciones, podrán combinarse diversos movimientos de protección. Por ejemplo, un choque inicialmente trasero puede estar seguido de una colisión frontal por alcanzamiento. La invención también comprende un dispositivo para llevar a cabo el procedimiento de la invención que comprende:collisions or decelerations, various protection movements may be combined. For example, an initially rear shock may be followed by a frontal collision by reaching. The invention also comprises a device for carrying out the process of the invention comprising:
- medios para variar la inclinación de la parte de respaldo con respecto a la parte de asiento;- means for varying the inclination of the back part with respect to the seat part;
- medios para variar la altura relativa entre el extremo de la parte de asiento más cercano a la parte de respaldo;- means for varying the relative height between the end of the seat part closest to the backrest part;
- una articulación que permite tanto a la parte de asiento como a la parte de respaldo girar conjuntamente con respecto a un punto de conexión al vehículo; - un sistema de detección de colisiones con capacidad de discernir entre colisión sustancialmente frontal, colisión sustancialmente trasera y vuelco;- a joint that allows both the seat part and the back part to rotate together with respect to a point of connection to the vehicle; - a collision detection system capable of distinguishing between substantially frontal collision, substantially rear-end collision and overturning;
- un dispositivo de control automático de los citados medios de variación de la inclinación y la altura en función de la señal emitida por el sistema de detección, disponiendo el dispositivo de control automático de medios de reacción que, ante una señal procedente del sistema de colisión correspondiente a una colisión sustancialmente frontal, disminuyen la altura del extremo de la parte de asiento más cercana a la parte de respaldo y hacen mover la parte de respaldo disminuyendo el ángulo formado por ambos elementos y que, ante una señal procedente del sistema de colisión correspondiente a una colisión sustancialmente trasera, disminuyen la altura del extremo de la parte dé asiento más cercana a la parte de respaldo y hacen mover la parte de respaldo disminuyendo el ángulo que forma la parte de respaldo con la parte de asiento.- an automatic control device for the said means of variation of the inclination and height depending on the signal emitted by the detection system, the automatic means of reaction control device having a signal from the collision system being provided. corresponding to a substantially frontal collision, decrease the height of the end of the seat part closest to the backrest part and move the backrest part decreasing the angle formed by both elements and which, before a signal from the corresponding collision system at a substantially rear-end collision, they decrease the height of the end of the seat part closest to the backrest part and cause the backrest part decreasing the angle between the backrest part and the seat part.
En una realización preferente, el asiento comprenderá una estructura compuesta por: - una conexión al chasis del vehículo que permite el giro de una pieza de conexión y la estructura, un elemento de conexión que conecta dicho conexión con una articulación situada en el extremo opuesto al extremo de la parte de asiento más cercana a la parte de respaldo,In a preferred embodiment, the seat will comprise a structure composed of: - a connection to the chassis of the vehicle that allows the rotation of a connection piece and the structure, a connection element that connects said connection with a joint located at the opposite end to the end of the seat part closest to the backrest part,
- un elemento estructural para la parte de asiento que conecta la citada articulación con una articulación de conexión entre la parte de asiento y la parte de respaldo.- a structural element for the seat part that connects said joint with a connection joint between the seat part and the back part.
- un elemento estructural para la parte de respaldo entre la citada articulación de conexión entre la parte de asiento y la parte de respaldo;- a structural element for the backrest part between said connection joint between the seat part and the backrest part;
- un elemento estructural de reposacabezas unido mediante una articulación a la estructura del respaldo.- a structural headrest element joined by an articulation to the backrest structure.
En otra realización preferente, las partes de asiento, respaldo y resposacabezas presentarán forma cóncava para proteger los laterales del ocupante del asiento. El reposacabezas, al presentar forma cóncava, también protege la parte superior de la cabeza, actuando como un casco.In another preferred embodiment, the seat, backrest and headrest parts will have a concave shape to protect the sides of the seat occupant. The headrest, having a concave shape, also protects the upper part of the head, acting like a helmet.
Para una mejor compresión de la invención, se adjunta a título de ejemplo explicativo pero no limitativo, unos dibujos de unas realizaciones de la presente invención.For a better understanding of the invention, some drawings of embodiments of the present invention are attached by way of explanatory but not limiting example.
La figura 1 muestra una vista en perspectiva de una realización de un dispositivo según la presente invención.Figure 1 shows a perspective view of an embodiment of a device according to the present invention.
La figura 2 muestra una vista en alzado lateral del dispositivo de la figura 1. La figura 3 corresponde con otra vista en perspectiva del dispositivo de la figura 1 , con el cinturón de seguridad en posición desabrochada.Figure 2 shows a side elevation view of the device of Figure 1. Figure 3 corresponds to another perspective view of the device of Figure 1, with the seat belt in the unfastened position.
La figura 4 es una vista en perspectiva del armazón principal del dispositivo mostrado en las figuras 1 a 3.Figure 4 is a perspective view of the main frame of the device shown in Figures 1 to 3.
La figura 5 muestra un modo de realización del procedimiento objeto de la presente invención, en caso de choque frontal o vuelco de un vehículo.Figure 5 shows an embodiment of the method object of the present invention, in the event of frontal collision or overturning of a vehicle.
La figura 6 muestra otro modo de realización del procedimiento objeto de la presente invención, en caso de alcanzamiento por detrás de un vehículo.Figure 6 shows another embodiment of the process object of the present invention, in case of reaching behind a vehicle.
Las figuras 1 a 4 muestran una realización del dispositivo de seguridad objeto de la presente invención, que queda integrado y toma la forma de un asiento de vehículo. El dispositivo, dispone de una estructura de asiento compuesta por una articulación -1- que conecta el dispositivo al chasis del vehículo, permitiendo el giro de una pieza de conexión -5- con respecto al chasis, y con ella, el resto del dispositivo, incluyendo las partes de respaldo y de asiento del asiento. La citada pieza de conexión -5- conecta la articulación de conexión al chasis -1- con otra articulación -2- que queda situada en el extremo opuesto al extremo del bastidor -6- del asiento más cercana al bastidor -7- de la parte de asiento. Esta articulación -2- permite que la parte de respaldo -10- varíe su altura relativa con respecto al extremo de la parte de asiento -9- más lejano a la parte de respaldo -10-. Los elementos estructurales o bastidores -6-, -7-, correspondientes a las partes de asiento -9-, y respaldo -10-, respectivamente, están unidas por una articulación de conexión -3- que permite variar la inclinación de la parte de respaldo -10- con respecto a la parte de asiento -9-. En el ejemplo mostrado, la estructura dispone, además de un elemento estructural o bastidor -8- para reposacabezas -11- unido al bastidor del respaldo -7- a través de una articulación -4-. Si bien, por motivos de simplicidad de la explicación no se ha procedido a dibujarlos, todas las articulaciones mostradas -1-, -2-, -3-, -4- disponen de medios automáticos que permiten ajustar su posición, lo que permite el movimiento de las mismas en caso de accidente, lo que requiere movimientos muy rápidos y una amortiguación baja. Sin embargo, dichas articulaciones serán utilizadas también para ajustar la posición del usuario del asiento en el vehículo, por lo que convendría también que las articulaciones puedan efectuar movimientos lentos. Por ello, podrá dotarse a los medios encargados de dotar de movimiento a las articulaciones, o a éstas mismas, de medios de amortiguación variable que permita ajustar la velocidad de movimiento de las articulaciones a los requerimientos de cada momento. Existen numerosos sistemas disponibles comercialmente que pueden realizar dicha función. Por ejemplo, podría incorporarse a la articulación un amortiguador viscoso, compuesto de discos de fricción y relleno de un fluido viscoso (sistema de amortiguación) que incluya también muelles de precarga encargados de fijar la posición del asiento. En caso de accidente, se inhabilitaría la acción del muelle de precarga entrando en acción el sistema de amortiguación. Por su parte, el accionamiento de los mecanismos que definen la posición de los componentes del asiento podría realizarse por medios electro-electrónicos, hidráulicos o mecánicos. El dispositivo se completa con una parte de asiento -9-, que podrá ser de tipo convencional, o bien cóncava, como la mostrada en las figuras. También de manera preferente, se dispondrá de un cinturón de seguridad -12- para la zona inmediatamente superior a las rodillas del ocupante, con el fin de obtener aseguramiento de la posición de las rodillas del usuario, y cuyo fin será el de mantener las rodillas del usuario en contacto con la parte de asiento -9- en caso de accidente. El dispositivo también comprende una parte de respaldo -10- que igualmente podrá ser de tipo convencional, aunque también preferentemente presentará forma cóncava para una mayor protección del cuerpo del ocupante. De cara a minimizar la posibilidad de N escape' del cuerpo del ocupante en caso de accidente, la parte de respaldo -10- presentará un cinturón de seguridad -13-, -13'- para el torso del ocupante en forma de "X" con un broche central -14-, -14'-. Para prevenir posibles daños provocados por los cinturones de seguridad -12-, -13-, -13'-, estos presentarán, preferentemente una sección transversal curva, por ejemplo cilindrica.Figures 1 to 4 show an embodiment of the safety device object of the present invention, which is integrated and takes the form of a vehicle seat. The device has a seat structure composed of a joint -1- that connects the device to the chassis of the vehicle, allowing the rotation of a connection piece -5- with respect to the chassis, and with it, the rest of the device, including the backrest and seat seat parts. The said connection piece -5- connects the connection joint to the chassis -1- with another joint -2- that is located at the opposite end to the end of the frame -6- of the seat closest to the frame -7- of the part seat. This joint -2- allows the backrest part -10- to vary its relative height with respect to the end of the seat part -9- furthest from the backrest part -10-. The structural elements or frames -6-, -7-, corresponding to the seat parts -9-, and backrest -10-, respectively, are joined by a connecting joint -3- which allows to vary the inclination of the part of backrest -10- with respect to the seat part -9-. In the example shown, the structure also has a structural element or frame -8- for headrest -11- attached to the backrest frame -7- through a joint -4-. Although, for reasons of simplicity of explanation, it has not been possible to draw them, all the joints shown -1-, -2-, -3-, -4- have automatic means that allow their position to be adjusted, which allows movement of the same in case of accident, which requires very fast movements and low damping. However, said joints will also be used to adjust the position of the user of the seat in the vehicle, so it would also be convenient for the joints to make slow movements. Therefore, the means responsible for providing movement to the joints, or these themselves, may be provided with variable damping means that allow adjusting the speed of movement of the joints to the requirements of each moment. There are numerous commercially available systems that can perform this function. For example, a viscous shock absorber composed of friction discs and filled with a viscous fluid (damping system) that also includes preload springs responsible for fixing the position of the seat could be incorporated into the joint. In the event of an accident, the action of the preload spring would be disabled by entering the damping system into action. On the other hand, the actuation of the mechanisms that define the position of the seat components could be carried out by electro-electronic, hydraulic or mechanical means. The device is completed with a seat part -9-, which may be of the conventional type, or concave, as shown in the figures. Also preferably, a safety belt -12- will be available for the area immediately above the occupant's knees, in order to obtain assurance of the user's knee position, and whose purpose will be to keep the knees of the user in contact with the seat part -9- in case of an accident. The device also comprises a backing part -10- which may also be of the conventional type, although it will also preferably have a concave shape for greater protection of the occupant's body. In order to minimize the possibility of N escape 'from the occupant's body in case of an accident, the backrest part -10- will have a safety belt -13-, -13'- for the torso of the occupant in the form of "X" with a central clasp -14-, -14'-. To prevent possible damage caused by safety belts -12-, -13-, -13'-, these will preferably have a curved cross-section, for example cylindrical.
Por último, el dispositivo de seguridad comprende también de un sistema de detección de colisiones, con capacidad de discernir entre colisión sustancialmente frontal, colisión sustancialmente trasera y vuelco. Dicho dispositivo puede realizarse según técnicas conocidas, por ejemplo mediante la disposición de una serie de sensores de aceleración, o de otro modo. Dicho sistema de detección emite una señal o señales a un dispositivo de control automático, tal como por ejemplo un dispositivo electrónico lógico, que en función de las señales recibidas del sistema de detección de colisiones procede a enviar las órdenes de movimiento correspondientes a los medios de movimiento de las articulaciones -1-, -2-, -3-, -4-. Por motivos de claridad de exposición, en las figuras no se han representado ni el sistema de detección ni el dispositivo de control automático.Finally, the safety device also comprises a collision detection system, capable of distinguishing between substantially frontal collision, substantially rear-end collision and overturning. Said device can be made according to known techniques, for example by the arrangement of a series of acceleration sensors, or otherwise. Said detection system emits a signal or signals to an automatic control device, such as for example a logical electronic device, which depending on the signals received from the detection system of collisions proceeds to send the corresponding movement orders to the means of movement of the joints -1-, -2-, -3-, -4-. For reasons of clarity of exposure, neither the detection system nor the automatic control device has been shown in the figures.
En las figuras 5 y 6 se muestran dos posibles realizaciones del procedimiento objeto de la presente invención en caso de choque frontal o vuelco y en caso de choque trasero o alcanzamiento, respectivamente. En caso de choque frontal o vuelco (ver figura 5), el sistema de detección emite la señal o señales correspondientes y, en función de las mismas, el dispositivo de control ordena disminuir la altura relativa del extremo de la parte del asiento -9- más próxima a la parte de respaldo -10- con respecto al extremo opuesto de la parte de asiento. Esto puede hacerse mediante giro de la articulación correspondiente -2- del dispositivo antes descrito.In Figures 5 and 6 two possible embodiments of the process object of the present invention are shown in the event of frontal collision or overturning and in case of rear-end collision or reach, respectively. In the event of a frontal crash or overturning (see figure 5), the detection system emits the corresponding signal or signals and, depending on them, the control device orders to decrease the relative height of the end of the seat part -9- closest to the back part -10- with respect to the opposite end of the seat part. This can be done by rotating the corresponding joint -2- of the device described above.
Luego se procede a hacer girar la parte de respaldo -10- con respecto a la parte de asiento -9- acercando dichas partes entre sí. Esto se puede hacer mediante el giro correspondiente de la articulación -3- que une ambas partes.Then the back part -10- is rotated with respect to the seat part -9- bringing said parts closer together. This can be done by the corresponding rotation of the joint -3- that joins both parts.
En el caso preferente en el que el dispositivo comprenda un reposacabezas -11- se procede posteriormente a hacer girar el reposacabezas -11- en dirección hacia la zona de respaldo -10- y la zona de asiento -9-, mediante el giro correspondiente de la articulación -4-.In the preferred case in which the device comprises a headrest -11- the headrest -11- is then rotated in the direction of the backrest area -10- and the seating area -9-, by the corresponding rotation of the joint -4-.
En el caso de que las articulaciones -1-, -2-, -3-, -4- presente una amortiguación variable, cuando recibe una señal de colisión, el dispositivo de control puede proceder a modificar la amortiguación de las articulaciones para obtener una respuesta adecuadamente rápida y eficaz.In the event that the joints -1-, -2-, -3-, -4- present a variable damping, when it receives a collision signal, the control device can proceed to modify the damping of the joints to Get a response quickly and efficiently.
De esta manera, el ocupante del asiento asume posición fetal y se evitan golpes con partes del vehículo, a la vez que se evita el latigazo y el desplazamiento del cuerpo del ocupante.In this way, the occupant of the seat assumes fetal position and blows with parts of the vehicle are avoided, while avoiding whiplash and displacement of the occupant's body.
En el caso de choque trasero (ver figura 6) el sistema de detección emite la señal o señales correspondientes y, en función de las mismas, el dispositivo de control ordena hacer que la parte de respaldo -10- aumente el ángulo formado con la parte de asiento -9-, de tal manera que ambas partes tiendan a alinearse. Esto puede realizarse mediante el giro correspondiente de la articulación -3- que une ambas partes.In the case of rear shock (see figure 6) the detection system emits the corresponding signal or signals and, depending on them, the control device orders to make the backup part -10- increase the angle formed with the part of seat -9-, so that both parts tend to align. This can be done by the corresponding rotation of the joint -3- that joins both parts.
Luego se procede a hacer que la totalidad del asiento describa un movimiento general hacia detrás, preferentemente mediante un giro alrededor de la articulación -1- de conexión al chasis del vehículo.Then we proceed to make the entire seat describe a general backward movement, preferably by a rotation around the joint -1- connecting to the vehicle chassis.
Por último, en el caso de que el dispositivo disponga de reposacabezas -11-, se procederá a hacer girar el reposacabezas -11- alejándolo de la zona de respaldo -10- y de asiento -9-.Finally, in the event that the device has a headrest -11-, the headrest -11- will be rotated away from the backrest area -10- and seat -9-.
De esta manera se evita el latigazo producido por la colisión y posibles traumatismos con partes frontales del vehículo . Preferentemente, las diferentes fases del procedimiento descrito se producirán en el orden indicado.This avoids the whiplash caused by the collision and possible trauma to the front of the vehicle. Preferably, the different phases of the described process will occur in the order indicated.
En el caso preferente en el que el dispositivo comprenda un reposacabezas -11- se procede posteriormente a hacer girar el reposacabezas -11- en dirección hacia la zona de respaldo -10- y la zona de asiento -9-. Una vez parado el vehículo, el asiento, una vez realizada su función de protección y absorción del impacto, podrá volver a su posición inicial para dejar espacio a los ocupantes para que puedan salir por su propio pie o puedan ser rescatados con facilidad. In the preferred case in which the device comprises a headrest -11- the headrest -11- is then rotated in the direction of the backrest area -10- and the seating area -9-. Once the vehicle is stopped, the seat, once it has performed its function of protection and absorption of impact, may return to its initial position to leave room for the occupants so that they can leave on their own foot or be easily rescued.

Claims

REIVINDICACIONES
1. Procedimiento de protección de un ocupante de un asiento de un vehículo que comprende una parte de asiento, una parte de respaldo y un cinturón de seguridad, del tipo de procedimiento que comprende la detección de una colisión mediante sensores y la modificación de la posición de elementos del asiento, caracterizado porque comprende las siguientes fases: a) detectar una colisión mediante un sistema de sensores con capacidad de discernir entre choque frontal o trasero; y en función del tipo de choque, b) si la colisión detectada es un choque frontal o un vuelco; entonces, b1 ) disminuir la altura relativa del extremo de la parte de asiento más próxima a la parte de respaldo con respecto al extremo opuesto de la parte de asiento; b2) hacer girar la parte de respaldo con respecto a la parte de asiento acercando dichas partes entre si; o, c) si la colisión detectada es un choque trasero; entonces, d ) hacer que la parte de respaldo aumente el ángulo formado con la parte de asiento, de tal manera que ambas partes tiendan a alinearse; c2) hacer que la totalidad del asiento describa un movimiento general hacia atrás.1. Procedure for the protection of an occupant of a vehicle seat comprising a seat part, a backrest part and a seat belt, of the type of procedure comprising the detection of a collision by sensors and the modification of the position of elements of the seat, characterized in that it comprises the following phases: a) detecting a collision by means of a sensor system capable of distinguishing between front or rear shock; and depending on the type of crash, b) if the collision detected is a frontal crash or a rollover; then, b1) decrease the relative height of the end of the seat part closest to the back part with respect to the opposite end of the seat part; b2) rotate the backrest part with respect to the seat part bringing said parts closer together; or, c) if the collision detected is a rear-end collision; then, d) causing the backing part to increase the angle formed with the seating part, such that both parts tend to align; c2) make the entire seat describe a general backward movement.
2. Procedimiento, según la reivindicación 1, en el que el movimiento descrito en c2) comprende un giro de todo el asiento con respecto a una articulación de conexión con el resto del vehículo. 2. The method according to claim 1, wherein the movement described in c2) comprises a rotation of the entire seat with respect to a connection joint with the rest of the vehicle.
3. Procedimiento, según la reivindicación 1 ó 2, caracterizado porque comprende, además, las siguientes fases: b3) hacer girar el reposacabezas hacia la zona de respaldo y la zona de asiento si la colisión detectada es un choque frontal; y c3) hacer girar el reposacabezas en sentido contrario al anteriormente indicado si la colisión detectada es un choque trasero.3. Method according to claim 1 or 2, characterized in that it also includes the following phases: b3) rotate the headrest towards the backrest area and the seating area if the collision detected is a frontal collision; and c3) rotate the head restraint counterclockwise if the collision detected is a rear-end collision.
4. Procedimiento, según cualquiera de las reivindicaciones 1 a 3, caracterizado porque las fases de movimiento de las diferentes partes del asiento vienen precedidas por una fase de modificación de la amortiguación de los dispositivos que permiten dichos movimientos, de tal manera que los movimientos puedan efectuarse a una velocidad mayor . Method according to any one of claims 1 to 3, characterized in that the phases of movement of the different parts of the seat are preceded by a phase of modification of the damping of the devices that allow said movements, so that the movements can be carried out at a higher speed.
5. Procedimiento, según cualquiera de las reivindicaciones 1 a 4, caracterizado porque comprende una fase final de vuelta del asiento a su posición inicial.5. Method according to any of claims 1 to 4, characterized in that it comprises a final phase of returning the seat to its initial position.
6. Dispositivo de protección de un ocupante de un asiento de un vehículo para la ejecución del procedimiento, según cualquiera de las reivindicaciones 1 a 5, caracterizado porque comprende,6. Protection device for an occupant of a seat of a vehicle for carrying out the method according to any one of claims 1 to 5, characterized in that it comprises,
- medios para variar la inclinación de la parte de respaldo con respecto a la parte de asiento;- means for varying the inclination of the back part with respect to the seat part;
- medios para variar la altura relativa entre el extremo de la parte de asiento más cercano a la parte de respaldo;- means for varying the relative height between the end of the seat part closest to the backrest part;
- una articulación que permite tanto a la parte de asiento como a la parte de respaldo girar conjuntamente con respecto a un punto de conexión al vehículo; - un sistema de detección de colisiones con capacidad de discernir entre colisión sustancialmente frontal, colisión sustancialmente trasera y vuelco;- a joint that allows both the seat part and the back part to rotate together with respect to a point of connection to the vehicle; - a collision detection system with ability to discern between substantially frontal collision, substantially rear-end collision and overturning;
- un dispositivo de control automático de los citados medios de variación de la inclinación y la altura en función de la señal emitida por el sistema de detección, disponiendo el dispositivo de control automático de medios de reacción que, ante una señal procedente del sistema de colisión correspondiente a una colisión sustancialmente frontal, disminuyen la altura del extremo de la parte de asiento más cercana a la parte de respaldo y hacen mover la parte de respaldo disminuyendo el ángulo formado por ambos elementos y que, ante una señal procedente del sistema de colisión correspondiente a una colisión sustancialmente trasera, disminuyen la altura del extremo de la parte de asiento más cercana a la parte de respaldo y hacen mover la parte de respaldo disminuyendo el ángulo que forma la parte de respaldo con la parte de asiento.- an automatic control device for the said means of variation of the inclination and height depending on the signal emitted by the detection system, the automatic means of reaction control device having a signal from the collision system being provided. corresponding to a substantially frontal collision, decrease the height of the end of the seat part closest to the backrest part and move the backrest part decreasing the angle formed by both elements and which, before a signal from the corresponding collision system at a substantially rear-end collision, they decrease the height of the end of the seat part closest to the backrest part and cause the backrest part to move, decreasing the angle between the backrest part and the seat part.
7. Dispositivo, según la reivindicación 6, caracterizado porque comprende, además, un reposacabezas articulado con respecto a la parte de respaldo.7. Device according to claim 6, characterized in that it further comprises an articulated headrest with respect to the backrest part.
8. Dispositivo, según la reivindicación 6 ó 7, caracterizado porque el asiento comprende una estructura compuesta por:Device according to claim 6 or 7, characterized in that the seat comprises a structure composed of:
- una conexión al chasis del vehículo que permite el giro de una pieza de conexión y la estructura; un elemento de conexión que conecta dicho conexión con una articulación situada en el extremo opuesto al extremo de la parte de asiento más cercana a la parte de respaldo; - un elemento estructural para la parte de asiento que conecta la citada articulación con una articulación de conexión entre la parte de asiento y la parte de respaldo;- a connection to the vehicle chassis that allows the rotation of a connection piece and the structure; a connection element that connects said connection with a joint located at the end opposite the end of the seat part closest to the backrest part; - a structural element for the seat part which connects said joint with a connection joint between the seat part and the backrest part;
- un elemento estructural para la parte de respaldo entre la citada articulación de conexión entre la parte de asiento y la parte de respaldo;- a structural element for the backrest part between said connection joint between the seat part and the backrest part;
- un elemento estructural de reposacabezas unido mediante una articulación a la estructura del respaldo.- a structural headrest element joined by an articulation to the backrest structure.
9. Dispositivo, según cualquiera de las reivindicaciones 6 a 8, caracterizado porque comprende un cinturón de seguridad en forma de X para el torso del ocupante .9. Device according to any of claims 6 to 8, characterized in that it comprises an X-shaped safety belt for the torso of the occupant.
10. Dispositivo, según cualquiera de las reivindicaciones 6 a 9, caracterizado porque comprende, además, un cinturón de seguridad para la zona inmediatamente superior a las rodillas del ocupante.10. Device according to any of claims 6 to 9, characterized in that it further comprises a safety belt for the area immediately above the occupant's knees.
11. Dispositivo, según cualquiera de las reivindicaciones 6 a 10, caracterizado porque el cinturón o cinturones de seguridad presentan una sección transversal redondeada. Device according to any one of claims 6 to 10, characterized in that the seat belt or belts have a rounded cross section.
12. Dispositivo, según cualquiera de las reivindicaciones 6 a 11 , caracterizado porque las partes de asiento, respaldo y reposacabezas presentan forma cóncava para proteger los laterales del ocupante. 12. Device according to any of claims 6 to 11, characterized in that the seat, backrest and headrest parts have a concave shape to protect the sides of the occupant.
PCT/ES2007/000228 2006-05-05 2007-04-16 Personal protection device for an occupant in a vehicle seat WO2007128850A1 (en)

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ES200601151A ES2264401B1 (en) 2006-05-05 2006-05-05 PERSONAL PROTECTION DEVICE OF AN OCCUPANT OF A VEHICLE SEAT.

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ES2264401B1 (en) 2007-10-16

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