WO1997012799A1 - Motor vehicle with a secondary chassis capable of sliding backwards on a main chassis following a head-on collision - Google Patents
Motor vehicle with a secondary chassis capable of sliding backwards on a main chassis following a head-on collision Download PDFInfo
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- WO1997012799A1 WO1997012799A1 PCT/CH1996/000341 CH9600341W WO9712799A1 WO 1997012799 A1 WO1997012799 A1 WO 1997012799A1 CH 9600341 W CH9600341 W CH 9600341W WO 9712799 A1 WO9712799 A1 WO 9712799A1
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- Prior art keywords
- chassis
- seats
- motor vehicle
- vehicle
- vehicle according
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
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- 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
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- 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
- B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
- B60N2/42781—Seats or parts thereof displaced during a crash characterised by the triggering system mechanical triggering
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D39/00—Vehicle bodies not otherwise provided for, e.g. safety vehicles
Definitions
- Motor vehicle comprising a secondary chassis which can slide backwards on a main chassis following a front impact
- the present invention relates to a motor vehicle having a main chassis on which are mounted a front part containing the vehicle engine, a central part containing the seats for the occupants and a rear part forming a volume for luggage.
- Safety devices such as seat belts, air cushions, head restraints, make it possible, to a certain extent, to reduce the consequences of such shocks for passengers without being able to completely avoid the dangers and inconveniences such as displacement of internal organs bodies of the occupants of the vehicle, crushing of the thorax by the seat belt, projection towards the front and rear of the head despite the head restraints, injuries to the face, especially for those wearing glasses, injuries to the legs and pelvis due to the recoil of the mechanical elements of the dashboard and the steering wheel.
- passengers are also thrown against the front seat and suffer the same consequences related to the seat belt as passengers in the front seats.
- the present invention aims to eliminate or reduce to a large extent the aforementioned drawbacks due to the forward projection of the passengers and the rearward movement of the front part of the vehicle, while retaining the advantages provided by the passive safety devices, such as seat belts, air cushions, side reinforcements, etc. already available, and by not increasing the risk of deformation of another vehicle in the event of a frontal collision with it.
- the invention also aims to provide such a vehicle providing increased security and the production of which is relatively simple and economical, the adaptation of the structure of existing vehicles not requiring large modifications during the design of the vehicle in the factory and not affecting the aesthetics of it.
- the invention also aims to provide a vehicle in which the additional safety means do not require any source of energy, are not likely to break down, are easily repairable after being brought into service. 'test, and come into action only when necessary and to the extent that the effects of a shock cause it.
- the vehicle according to the invention is characterized in that it comprises a secondary chassis on which the seats for the occupants are fixed and which extends into the front part of the vehicle, this secondary chassis being mounted on the main chassis so to be able to slide from the front to the rear of the vehicle following a frontal impact, or mainly frontal impact, exerted on this vehicle.
- said secondary chassis is integral with a transverse bar arranged in the front part of the vehicle.
- the secondary chassis may itself comprise two longitudinal bars arranged parallel in the direction of the length of the vehicle, the front ends of these longitudinal bars being integral with said transverse bar.
- This crossbar preferably has an outer lining made of an elastic material.
- the secondary chassis is secured to a pusher means arranged behind the seats in front of the rear part of the vehicle, this rear part being arranged so as to open under the effect of said impact, and the pusher means being arranged to compress and / or eject the content of this part rear and, if necessary, to crush the parts of the body intended for the passage of the rear wheels.
- the main chassis of the vehicle comprises longitudinal members
- said longitudinal bars of the secondary chassis are advantageously arranged so as to be able to slide relative to said longitudinal members.
- These longitudinal bars and said longitudinal members may have serrated or crenellated profiles arranged so as to cooperate to prevent movement of the secondary chassis forwards with respect to said longitudinal members, the secondary chassis being furthermore provided with means to prevent it sliding in the absence of frontal impact.
- said secondary chassis carrying the seats also has seat belt fastening devices, these devices being fixed to this chassis and / or to the seats.
- the vehicle according to the invention comprises means for optionally allowing movement of the front seats relative to the rear seats of the vehicle in the event of a frontal impact.
- Fig. 1 is a schematic side view of a vehicle according to the invention, showing the secondary chassis in two positions inside the vehicle;
- Fig. 2 is a view similar to FIG. 1 illustrating the effect of a frontal impact on the vehicle
- Fig. 3 shows a construction detail indicated in FIG. 2; and Fig. 4 is a schematic view, from below, of the secondary chassis in the outline of the body of a vehicle according to FIG. 1.
- FIG. 1 and 2 schematically show, in side view, a vehicle according to the invention comprising a front part 1, a central part 2, and a rear part 3, this car having a main chassis with side members 4, 4 'and a secondary chassis generally designated by 5.
- this secondary chassis is shown schematically, in view from below, in its normal position relative to the contour of the body 6 of the car. It has longitudinal, parallel bars 7, 8 and a front transverse part 9, comprising a curved bar 9 'as shown in FIG. 4.
- the floor 10 of the central part of the vehicle is secured to the secondary chassis 5 and the front 11 and rear 12 seats are also fixed to this secondary chassis.
- the longitudinal bars preferably have a crenellated or serrated profile cooperating with a similar profile of the longitudinal members and are guided laterally and in height by guide parts, such as 16 shown from the front in FIG. 3, arranged in particular at the front, in the middle and at the rear of the side members.
- the curved transverse bar 9 'of the secondary chassis is provided with a lining 9 "of an elastic material, this bar being arranged, in the normal state, behind the deformable part of the vehicle which absorbs the energy of a frontal impact up to a certain limit without deformation of the rest of the vehicle.
- the bar 9 'with its lining 9 " will be touched and will be pushed towards the rear of the vehicle, as shown in particular in FIG. 2, by moving the entire secondary chassis with the seats 11 and 12 rearwards, the longitudinal bars 7 and 8 sliding on the side members 4, 4 '.
- the rear part 13 of the secondary chassis comprising a rising push-button part 17, for example made of rigid sheet metal, disposed behind the rear seats, enters the volume of part 3 of the vehicle by compressing the possible content, for example baggage, that volume.
- Means not shown are preferably provided for opening or actuating at this time the opening of the boot or of a tailgate indicated partially, at 21, by a broken line.
- the pusher part is, if necessary, designed to crush the body parts surrounding the rear wheels, and the rear area of the vehicle is adapted to allow the seats to recede without injuring the passengers.
- seat belts such as 19, can be fixed at 20, 20 ', 20 "to the passenger seats, the other safety devices, such as air cushions and head restraints not being shown but can be arranged in the usual way to protect passengers.
- Fig. 1 which represents two positions of the secondary chassis, schematically shows a means of retaining this chassis relative to the main chassis in the absence of impact, in the form of a rod 18. Means may also be provided to allow, optionally , in the event that the rear seats are not occupied, a displacement of the front seats towards these rear seats in the event of a frontal impact, so as to facilitate and prolong the movement of the front seats and thus provide additional space for their occupants.
- main chassis in particular to monocoque chassis.
- alternative embodiments may consist in producing, during an impact detected by existing detection devices or specifically installed for this purpose, a retreat of the secondary chassis relative to the main chassis by appropriate mechanical means, hydraulic, pneumatic and / or by the use of explosives.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
Véhicule automobile comportant un châssis secondaire pouvant coulisser vers l'arrière sur un châssis principal suite à un choc avant Motor vehicle comprising a secondary chassis which can slide backwards on a main chassis following a front impact
La présente invention concerne un véhicule automobile présentant un châssis principal sur lequel sont montées une partie avant contenant le moteur du véhicule, une partie centrale contenant les sièges pour les occupants et une partie arrière formant un volume pour les bagages.The present invention relates to a motor vehicle having a main chassis on which are mounted a front part containing the vehicle engine, a central part containing the seats for the occupants and a rear part forming a volume for luggage.
Lors d'un choc frontal sur le véhicule, les occupants sont généralement, dans un premier temps, projetés violemment en avant, alors que la carosserie se déforme au niveau de la partie avant réduisant l'espace disponible pour les passagers des places avant avec les conséquences que l'on connaît. Les dispositifs de sécurité, tels que ceintures de sécurité, coussins à air, appuis-tête, permettent, dans une certaine mesure, de réduire les conséquences de tels chocs pour les passsagers sans pouvoir totalement écarter les dangers et inconvénients tels que déplacement des organes internes des corps des occupants du véhicule, l'écrasement du thorax par la ceinture de sécurité, la projection vers l'avant et l'arrière de la tête malgré les appuis-tête, les blessures au visage, notamment pour les porteurs de lunettes, les blessures au niveau des jambes et du bassin du fait du recul des éléments mécaniques du tableau de bord et du volant. Aux places arrières du véhicule, les passagers sont également projetés contre le siège avant et subissent les mêmes conséquences liées à la ceinture de sécurité que les passagers des sièges avant.During a frontal impact on the vehicle, the occupants are generally, initially, thrown violently forward, while the bodywork deforms at the front part reducing the space available for the passengers in the front seats with the consequences that we know. Safety devices, such as seat belts, air cushions, head restraints, make it possible, to a certain extent, to reduce the consequences of such shocks for passengers without being able to completely avoid the dangers and inconveniences such as displacement of internal organs bodies of the occupants of the vehicle, crushing of the thorax by the seat belt, projection towards the front and rear of the head despite the head restraints, injuries to the face, especially for those wearing glasses, injuries to the legs and pelvis due to the recoil of the mechanical elements of the dashboard and the steering wheel. In the rear seats of the vehicle, passengers are also thrown against the front seat and suffer the same consequences related to the seat belt as passengers in the front seats.
La présente invention vise à supprimer ou à réduire dans une large mesure, les inconvénients susmentionnés dûs à la projection vers l'avant des passagers et du recul de la partie avant du véhicule, tout en conservant les avantages procurés par les dispositifs de sécurité passive, tels que ceintures de sécurité, coussins à air, renforts latéraux, etc. déjà disponibles, et en n'augmentant pas les risques de déformation d'un autre véhicule en cas de collision frontale avec celui-ci. L'invention a également pour but de fournir un tel véhicule procurant une sécurité accrue et dont la réalisation soit relativement simple et économique, l'adaptation de la structure des véhicules existants ne nécessitant pas de grandes modifications lors de la conception du véhicule en usine et n'affectant pas l'esthétique de celui-ci. Selon une forme d'exécution préférentielle, l'invention vise en outre à fournir un véhicule dans lequel les moyens de sécurité supplémentaires ne nécessitent aucune source d'énergie, ne risquent pas de tomber en panne, soient facilement réparables après avoir été mises à l'épreuve, et n'entrent en action qu'en cas de nécessité et dans la mesure où les effets d'un choc la provoquent.The present invention aims to eliminate or reduce to a large extent the aforementioned drawbacks due to the forward projection of the passengers and the rearward movement of the front part of the vehicle, while retaining the advantages provided by the passive safety devices, such as seat belts, air cushions, side reinforcements, etc. already available, and by not increasing the risk of deformation of another vehicle in the event of a frontal collision with it. The invention also aims to provide such a vehicle providing increased security and the production of which is relatively simple and economical, the adaptation of the structure of existing vehicles not requiring large modifications during the design of the vehicle in the factory and not affecting the aesthetics of it. According to a preferred embodiment, the invention also aims to provide a vehicle in which the additional safety means do not require any source of energy, are not likely to break down, are easily repairable after being brought into service. 'test, and come into action only when necessary and to the extent that the effects of a shock cause it.
Le véhicule selon l'invention est caractérisé en ce qu'il comporte un châssis secondaire sur lequel sont fixées les sièges pour les occupants et qui s'étend jusque dans la partie avant du véhicule, ce châssis secondaire étant monté sur le châssis principal de façon à pouvoir coulisser de l'avant vers l'arrière du véhicule à la suite d'un choc frontal, ou principalement frontal, s'exerçant sur ce véhicule.The vehicle according to the invention is characterized in that it comprises a secondary chassis on which the seats for the occupants are fixed and which extends into the front part of the vehicle, this secondary chassis being mounted on the main chassis so to be able to slide from the front to the rear of the vehicle following a frontal impact, or mainly frontal impact, exerted on this vehicle.
Selon une forme d'exécution préférée, ledit châssis secondaire est solidaire d'une barre transversale disposée dans la partie avant du véhicule. Le châssis secondaire peut lui-même comporter deux barres longitudinales disposées parallèlement dans le sens de la longueur du véhicule, les extrémités avant de ces barres longitudinales étant solidaires de ladite barre transversale. Cette barre transversale comporte de préférence une garniture extérieure en un matériau élastique.According to a preferred embodiment, said secondary chassis is integral with a transverse bar arranged in the front part of the vehicle. The secondary chassis may itself comprise two longitudinal bars arranged parallel in the direction of the length of the vehicle, the front ends of these longitudinal bars being integral with said transverse bar. This crossbar preferably has an outer lining made of an elastic material.
Selon une forme d'exécution préférée, le châssis secondaire est solidaire d'un moyen de poussoir disposé derrière les sièges en avant de la partie arrière du véhicule, cette partie arrière étant agencée de façon à s'ouvrir sous l'effet dudit choc, et le moyen de poussoir étant agencé pour comprimer et/ou éjecter le contenu de cette partie arrière et, le cas échéant, pour écraser les parties de la carrosserie destinées au passage des roues arrière.According to a preferred embodiment, the secondary chassis is secured to a pusher means arranged behind the seats in front of the rear part of the vehicle, this rear part being arranged so as to open under the effect of said impact, and the pusher means being arranged to compress and / or eject the content of this part rear and, if necessary, to crush the parts of the body intended for the passage of the rear wheels.
Dans le cas fréquent où le châssis principal du véhicule comporte des longerons, lesdites barres longitudinales du châssis secondaire sont avantageusement disposées de façon à pouvoir coulisser par rapport auxdits longerons. Ces barres longitudinales et lesdits longerons peuvent présenter des profils dentelés ou crénelés agencés de façon à coopérer pour empêcher un mouvement du châssis secondaire vers l'avant par rapport auxdits longerons, le châssis secondaire étant en outre muni de moyens pour éviter son coulissement en l'absence de choc frontal.In the frequent case where the main chassis of the vehicle comprises longitudinal members, said longitudinal bars of the secondary chassis are advantageously arranged so as to be able to slide relative to said longitudinal members. These longitudinal bars and said longitudinal members may have serrated or crenellated profiles arranged so as to cooperate to prevent movement of the secondary chassis forwards with respect to said longitudinal members, the secondary chassis being furthermore provided with means to prevent it sliding in the absence of frontal impact.
De préférence, ledit châssis secondaire portant les sièges présente également des dispositifs d'attache de ceintures de sécurité, ces dispositifs étant fixés sur ce châssis et/ou sur les sièges.Preferably, said secondary chassis carrying the seats also has seat belt fastening devices, these devices being fixed to this chassis and / or to the seats.
Selon une forme d'exécution préférentielle, le véhicule selon l'invention comporte des moyens pour permettre, de façon facultative, un déplacement des sièges avant par rapport aux sièges arrière du véhicule en cas de choc frontal.According to a preferred embodiment, the vehicle according to the invention comprises means for optionally allowing movement of the front seats relative to the rear seats of the vehicle in the event of a frontal impact.
L'invention sera mieux comprise à la lumière de la description suivante d'une forme de réalisation du véhicule selon l'invention, illustrée dans le dessin annexé dans lequel:The invention will be better understood in the light of the following description of an embodiment of the vehicle according to the invention, illustrated in the appended drawing in which:
la Fig. 1 est une vue schématique, latérale, d'un véhicule selon l'invention, montrant le châssis secondaire dans deux positions à l'intérieur du véhicule;Fig. 1 is a schematic side view of a vehicle according to the invention, showing the secondary chassis in two positions inside the vehicle;
la Fig. 2 est une vue similaire à la Fig. 1 illustrant l'effet d'un choc frontal sur ie véhicule;Fig. 2 is a view similar to FIG. 1 illustrating the effect of a frontal impact on the vehicle;
la Fig. 3 montre un détail de construction indiqué sur la Fig. 2; et la Fig. 4 est une vue schématique, de dessous, du châssis secondaire dans le contour de la carosserie d'un véhicule selon la Fig. 1.Fig. 3 shows a construction detail indicated in FIG. 2; and Fig. 4 is a schematic view, from below, of the secondary chassis in the outline of the body of a vehicle according to FIG. 1.
Les figures 1 et 2 montrent schématiquement, en vue latérale, un véhicule selon l'invention comportant une partie avant 1 , une partie centrale 2, et une partie arrière 3, cette voiture ayant un châssis principal avec des longerons 4, 4' et un châssis secondaire désigné, dans son ensemble, par 5. A la Fig. 4, ce châssis secondaire est représenté schématiquement, en vue de dessous, dans sa position normale par rapport au contour de la carosserie 6 de la voiture. Il comporte des barres longitudinales, parallèles, 7, 8 et une partie transversale avant 9, comprenant une barre 9' cintrée comme le montre la Fig. 4. Le plancher 10 de la partie centrale du véhicule est solidaire du châssis secondaire 5 et les sièges avant 11 et arrière 12 sont également fixés sur ce châssis secondaire.Figures 1 and 2 schematically show, in side view, a vehicle according to the invention comprising a front part 1, a central part 2, and a rear part 3, this car having a main chassis with side members 4, 4 'and a secondary chassis generally designated by 5. In FIG. 4, this secondary chassis is shown schematically, in view from below, in its normal position relative to the contour of the body 6 of the car. It has longitudinal, parallel bars 7, 8 and a front transverse part 9, comprising a curved bar 9 'as shown in FIG. 4. The floor 10 of the central part of the vehicle is secured to the secondary chassis 5 and the front 11 and rear 12 seats are also fixed to this secondary chassis.
Les barres longitudinales 7 et 8, reliées notamment par la partie transversale 9 et une partie poussoir 17 qui sera décrite plus loin, ainsi que par des parties transversales, telles que 14, et obliques, telles que 15, de manière à former un ensemble rigide, sont agencées de façon à pouvoir coulisser sur les longerons 4, 4' en cas de choc frontal, ou principalement frontal, agissant sur la barre transversale 9'. Les barres longitudinales présentent de préférence un profil crénelé ou dentelé coopérant avec un profil similaire des longerons et sont guidées latéralement et en hauteur par des parties de guidage, telles que 16 montrées de face à la Fig. 3, disposées notamment à l'avant, au milieu et à l'arrière des longerons.The longitudinal bars 7 and 8, connected in particular by the transverse part 9 and a pusher part 17 which will be described later, as well as by transverse parts, such as 14, and oblique, such as 15, so as to form a rigid assembly , are arranged so as to be able to slide on the longitudinal members 4, 4 ′ in the event of a frontal impact, or mainly frontal impact, acting on the transverse bar 9 ′. The longitudinal bars preferably have a crenellated or serrated profile cooperating with a similar profile of the longitudinal members and are guided laterally and in height by guide parts, such as 16 shown from the front in FIG. 3, arranged in particular at the front, in the middle and at the rear of the side members.
La barre transversale cintrée 9' du châssis secondaire est munie d'une garniture 9" en un matériau élastique, cette barre étant disposée, à l'état normal, à l'arrière de la partie déformable du véhicule qui absorbe l'énergie d'un choc frontal jusqu'à une certaine limite sans déformation du reste du véhicule. Lorsque le choc provoque une déformation plus importante, la barre 9' avec sa garniture 9" sera touchée et va être poussée vers l'arrière du véhicule, comme le montre en particulier la Fig. 2, en déplaçant l'ensemble du châssis secondaire avec les sièges 11 et 12 vers l'arrière, les barres longitudinales 7 et 8 coulissant sur les longerons 4, 4'. Lors de ce déplacement, la partie arrière 13 du châssis secondaire comportant une partie de poussoir montante 17, par exemple en tôle rigide, disposée derrière les sièges arrière, pénètre dans le volume de la partie 3 du véhicule en comprimant le contenu éventuel, par exemple des bagages, de ce volume. Des moyens non représentés sont de préférence prévus pour ouvrir ou actionner à ce moment l'ouverture du coffre ou d'un hayon indiqué partiellement, en 21 , par un trait interrompu. La partie de poussoir est, le cas échéant, conçue pour écraser les parties de carrosserie entourant les roues arrière, et la plage arrière du véhicule est adaptée pour permettre le recul des sièges sans blesser les passagers.The curved transverse bar 9 'of the secondary chassis is provided with a lining 9 "of an elastic material, this bar being arranged, in the normal state, behind the deformable part of the vehicle which absorbs the energy of a frontal impact up to a certain limit without deformation of the rest of the vehicle. When the impact causes a greater deformation, the bar 9 'with its lining 9 "will be touched and will be pushed towards the rear of the vehicle, as shown in particular in FIG. 2, by moving the entire secondary chassis with the seats 11 and 12 rearwards, the longitudinal bars 7 and 8 sliding on the side members 4, 4 '. During this movement, the rear part 13 of the secondary chassis comprising a rising push-button part 17, for example made of rigid sheet metal, disposed behind the rear seats, enters the volume of part 3 of the vehicle by compressing the possible content, for example baggage, that volume. Means not shown are preferably provided for opening or actuating at this time the opening of the boot or of a tailgate indicated partially, at 21, by a broken line. The pusher part is, if necessary, designed to crush the body parts surrounding the rear wheels, and the rear area of the vehicle is adapted to allow the seats to recede without injuring the passengers.
Comme le montre la Fig. 2, des ceintures de sécurité, telles que 19, peuvent être fixées en 20, 20', 20" aux sièges des passagers, les autres dispositifs de sécurités, tels que coussins à air et appuis-tête n'étant pas représentés mais pouvant être agencés de la façon habituelle pour protéger les passagers.As shown in Fig. 2, seat belts, such as 19, can be fixed at 20, 20 ', 20 "to the passenger seats, the other safety devices, such as air cushions and head restraints not being shown but can be arranged in the usual way to protect passengers.
Lors d'un choc frontal, le coulissement du châssis secondaire par rapport au châssis principal réduit dans une très large mesure, voire supprime quasi totalement, l'effet de projection en avant des occupants du véhicule, les préservant ainsi des conséquences d'une telle projection tout en créant un espace supplémentaire entre les parties du véhicule en déformation et les sièges.During a frontal impact, the sliding of the secondary chassis relative to the main chassis reduces to a very large extent, or even almost completely eliminates, the effect of projection in front of the occupants of the vehicle, thus protecting them from the consequences of such a projection while creating additional space between the distorted parts of the vehicle and the seats.
La Fig. 1 qui représente deux positions du châssis secondaire, montre schématiquement un moyen de rétention de ce châssis par rapport au châssis principal en l'absence de choc, sous forme d'une tringle 18. Des moyens peuvent également être prévus pour permettre, de façon facultative, au cas où les sièges arrière ne seraient pas occupées, un déplacement des sièges avant vers ces sièges arrière en cas de choc frontal, de manière à faciliter et à prolonger le déplacement des sièges avant et fournir ainsi un espace supplémentaire à leurs occupants.Fig. 1 which represents two positions of the secondary chassis, schematically shows a means of retaining this chassis relative to the main chassis in the absence of impact, in the form of a rod 18. Means may also be provided to allow, optionally , in the event that the rear seats are not occupied, a displacement of the front seats towards these rear seats in the event of a frontal impact, so as to facilitate and prolong the movement of the front seats and thus provide additional space for their occupants.
Il est à noter que l'invention est applicable à toutes les formes de châssis principal, notamment à des châssis monocoques. D'autre part, des variantes d'exécution peuvent consister à produire, lors d'un choc détecté par des dispositifs de détection existants ou spécifiquement installés à cet effet, un recul du châssis secondaire par rapport au châssis principal par des moyens appropriés mécaniques, hydrauliques, pneumatiques et/ou par l'utilisation d'explosifs.It should be noted that the invention is applicable to all forms of main chassis, in particular to monocoque chassis. On the other hand, alternative embodiments may consist in producing, during an impact detected by existing detection devices or specifically installed for this purpose, a retreat of the secondary chassis relative to the main chassis by appropriate mechanical means, hydraulic, pneumatic and / or by the use of explosives.
Il ressort de la description et des remarques qui précèdent que la conception du présent véhicule, tout en permettant de conserver les dispositifs de sécurité habituels, est basée sur une idée entièrement nouvelle, consistant non plus à tenter de bloquer les passagers par rapport au châssis du véhicule, mais à provoquer leur déplacement dans le sens opposé à celui du véhicule, lors d'un choc frontal. Cette conception s'avère réalisable sans difficulté sur tous les véhicules de structure de base habituelle, moyennant des aménagements qui ne posent aucun problème technique majeur et n'entraînent que des coûts relativement modestes. Le présent véhicule qui offre une sécurité très sensiblement accrue à ses occupants, reste ainsi tout à fait accessible pour le grand public de sorte qu'il ouvre des perspectives très prometteuses sur le marché. It appears from the above description and remarks that the design of this vehicle, while allowing to keep the usual safety devices, is based on an entirely new idea, no longer consisting in trying to block the passengers relative to the chassis of the vehicle, but to cause them to move in the opposite direction to that of the vehicle, during a frontal impact. This design proves to be achievable without difficulty on all vehicles with the usual basic structure, subject to arrangements which do not pose any major technical problem and involve only relatively modest costs. The present vehicle which offers very significantly increased safety to its occupants, thus remains entirely accessible to the general public, so that it opens up very promising prospects on the market.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR95/11564 | 1995-10-02 | ||
| FR9511564 | 1995-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1997012799A1 true WO1997012799A1 (en) | 1997-04-10 |
Family
ID=9483145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH1996/000341 Ceased WO1997012799A1 (en) | 1995-10-02 | 1996-10-01 | Motor vehicle with a secondary chassis capable of sliding backwards on a main chassis following a head-on collision |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO1997012799A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19952536A1 (en) * | 1999-10-30 | 2001-05-03 | Volkswagen Ag | Crash pull strap to protect the passenger compartment of a vehicle |
| EP1106479A3 (en) * | 1999-12-06 | 2002-05-08 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle body structure for improved crash safety |
| FR2869850A1 (en) * | 2004-05-06 | 2005-11-11 | Daniel Armand | METHOD AND SYSTEM FOR PROTECTING PASSENGERS OF A VEHICLE |
| WO2006089930A1 (en) * | 2005-02-23 | 2006-08-31 | Heinz Peter | Protective system for increasing passenger safety in a motor vehicle |
| WO2006087593A3 (en) * | 2005-02-16 | 2007-04-05 | Marin Bilic | Passive occupant protection system |
| CN107804468A (en) * | 2016-09-08 | 2018-03-16 | 法乐第(北京)网络科技有限公司 | Determine the method, seat fire control method and system on seat fire opportunity |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR356108A (en) * | 1905-07-12 | 1905-11-21 | Louis Christian Gerard Lesage | Balanced chassis for cars |
| FR2147012A1 (en) * | 1971-07-29 | 1973-03-09 | Angelucci Marc | |
| DE4337256A1 (en) * | 1993-11-02 | 1995-05-04 | Wuerth Gustav | Chassis for passenger cars having a spring-mounted load-bearing body member |
-
1996
- 1996-10-01 WO PCT/CH1996/000341 patent/WO1997012799A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR356108A (en) * | 1905-07-12 | 1905-11-21 | Louis Christian Gerard Lesage | Balanced chassis for cars |
| FR2147012A1 (en) * | 1971-07-29 | 1973-03-09 | Angelucci Marc | |
| DE4337256A1 (en) * | 1993-11-02 | 1995-05-04 | Wuerth Gustav | Chassis for passenger cars having a spring-mounted load-bearing body member |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19952536A1 (en) * | 1999-10-30 | 2001-05-03 | Volkswagen Ag | Crash pull strap to protect the passenger compartment of a vehicle |
| EP1106479A3 (en) * | 1999-12-06 | 2002-05-08 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle body structure for improved crash safety |
| FR2869850A1 (en) * | 2004-05-06 | 2005-11-11 | Daniel Armand | METHOD AND SYSTEM FOR PROTECTING PASSENGERS OF A VEHICLE |
| WO2006087593A3 (en) * | 2005-02-16 | 2007-04-05 | Marin Bilic | Passive occupant protection system |
| WO2006089930A1 (en) * | 2005-02-23 | 2006-08-31 | Heinz Peter | Protective system for increasing passenger safety in a motor vehicle |
| CN107804468A (en) * | 2016-09-08 | 2018-03-16 | 法乐第(北京)网络科技有限公司 | Determine the method, seat fire control method and system on seat fire opportunity |
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