WO2018220300A1 - Motor vehicle seat comprising an airbag - Google Patents

Motor vehicle seat comprising an airbag Download PDF

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Publication number
WO2018220300A1
WO2018220300A1 PCT/FR2018/050918 FR2018050918W WO2018220300A1 WO 2018220300 A1 WO2018220300 A1 WO 2018220300A1 FR 2018050918 W FR2018050918 W FR 2018050918W WO 2018220300 A1 WO2018220300 A1 WO 2018220300A1
Authority
WO
WIPO (PCT)
Prior art keywords
seat
support
airbag
vehicle
user
Prior art date
Application number
PCT/FR2018/050918
Other languages
French (fr)
Inventor
Jean Pierre Gauthier
Nathalie RICHEUX GUILLOUX
Frederic Bertin
Jean Francois Fernandes Ribeiro
Patricia Lembert
Original Assignee
Psa Automobiles Sa
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 Psa Automobiles Sa filed Critical Psa Automobiles Sa
Publication of WO2018220300A1 publication Critical patent/WO2018220300A1/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
    • B60N2/24—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
    • B60N2/4249—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 fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash
    • B60N2/4256—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 fixed structures, i.e. where neither the seat nor a part thereof are displaced during a crash the shape of the seat being specially adapted for a particular purpose or for particular vehicles
    • 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
    • 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
    • B60N2/995—Lower-leg-rests, e.g. calf-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
    • B60R21/207—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle seats
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R2021/23169—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for knee protection

Definitions

  • the invention relates, in general, the field of occupant protection in a vehicle interior, particularly in a self-driving vehicle.
  • the invention relates more particularly to a motor vehicle seat comprising a knee protection system of an occupant of the vehicle.
  • current motor vehicles generally comprise one or more protection device (s), commonly referred to as airbags, otherwise known as airbags.
  • a protective device comprises a cushion able to deploy and inflate almost instantly in the event of impact, so as to protect one or more occupants of a vehicle.
  • frontal protection devices referred to as front airbags
  • side protection devices referred to as side airbags
  • the frontal protection devices are generally integrated in the steering wheel of the vehicle, in order to protect the driver, and in the dashboard in front of the front passenger to allow the protection of the latter in case of frontal impact.
  • the invention therefore aims to at least partially solve these disadvantages by providing a protective system of an occupant of the motor vehicle which is easy and reliable to implement and provides optimum protection of the knees of the occupant, including in a relaxed position in a vehicle in autonomous driving mode.
  • the present invention relates to a motor vehicle seat comprising a seat and a calf rest system comprising a support adapted to receive the calves of a vehicle user sitting on said seat, said support comprising protection means comprising at least one airbag adapted to protect the knees of said user of the motor vehicle.
  • the dimensions of the knee protection airbag of a user of the vehicle are minimized through its integration into the calfrest system that allows to place the cushion closer to the knees .
  • This optimizes the protection of the knees while minimizing the volume and the number of cushions needed and therefore the costs of the means of protection.
  • this integration is easier and less expensive than under the dashboard of the vehicle.
  • the airbag deploys to the right knees, which increases the protection of the knees.
  • the support comprises two calf prints, each fingerprint being adapted to receive one of the calves of the user of the vehicle, said protection means being mounted between the two calf prints.
  • the airbag comprises two lobes, each lobe being adapted to extend, in the deployed position, substantially parallel to the support.
  • each lobe is adapted to extend, in the deployed position, above an impression so as to protect one of the user's knees of the vehicle.
  • the airbag further comprises a central portion adapted to extend substantially orthogonal to the support so as to maintain the lobes at a predetermined distance from the support.
  • the airbag has a substantially T-shaped in the deployed position.
  • the protection means comprise a storage container of the airbag, said container being placed under the support.
  • the container is placed between the footprints.
  • the airbag is adapted to pass through the support during its deployment.
  • the invention also relates to a motor vehicle comprising at least one seat as described above.
  • FIG. 1 a diagram of an embodiment of the seat according to the invention adapted to be mounted in a motor vehicle
  • FIG. 2 a diagram of the seat of FIG. 1 in which the protection means are in the deployed position
  • FIG. 3 a diagram of the protection means in the deployed position
  • Figures 4 to 6 diagrams of different states of the seat of Figure 1 on which sits a user.
  • FIGS 1 and 2 show a seat 1 adapted to be mounted in a motor vehicle (not shown).
  • a seat 1 is preferably a front seat, preferably still the seat of the driver of the motor vehicle.
  • the seat 1 comprises a seat 10 on which a user of the vehicle can sit, a backrest 20 and a calf rest system 30.
  • the seat 10 and the backrest 20 allow the user to sit in a conventional manner on the seat 1 inside the vehicle.
  • the vehicle according to the invention is a vehicle comprising an autonomous driving mode in which a vehicle control system automatically controls the movements, including longitudinal and lateral, of the vehicle on the taxiway.
  • the vehicle might not understand such a mode.
  • the calf rest system 30 allows the user to rest his calves.
  • the calf rest system 30 comprises a support 31, preferably in the form of a cap, adapted to receive the calves of the user.
  • the support 31 has a shape adapted to receive the two calves of the user.
  • the support 31 comprises two cavities 32 having a concave or hollow shape adapted to receive a calf.
  • each cavity 32 is in the form of a groove extending along the longitudinal axis of the vehicle.
  • longitudinal axis of the vehicle is meant the longitudinal direction in which the vehicle is traveling on a taxiway.
  • the support 31 comprises, between the two cavities 32, a convex shape, designated protrusion 33.
  • the support 31 has, in sectional view, an upper surface in undulating form.
  • the support 31 is covered with a layer (not shown) made of a flexible material, such as foam or fabric.
  • the calf rest system 30 comprises adjustment means (not shown) of the position of the support 31.
  • the calf rest system 31 can thus switch between a storage position, as shown in FIG. 4, and a plurality of deployed positions, one of which is shown in FIG.
  • the calf rest system 30 extends under the seat 10.
  • the calves of the user are not supported on the support 31. This allows the driver of the vehicle to freely operate the accelerator and brake pedals of the vehicle.
  • the user switches the system of rest calf 30 in an extended position as shown in Figure 5.
  • the support 31 is moved upwardly, manually or automatically, to allow the user to press his calves on the support 31.
  • the calf rest system 30 has a plurality of deployed positions, each corresponding to a height of the support 31 to allow the user to adjust the position.
  • each calf is housed in an impression 32.
  • the calves are held laterally to prevent them from slipping when the vehicle is moving.
  • the calf rest system 30 further comprises protection means 34 of the user's knees.
  • the protection means 34 are mounted at the protuberance 33.
  • the protection means 34 comprise a container 35 and an airbag 36 adapted to be filled with air when the device is in use. a shock of the vehicle as illustrated in Figures 2, 3 and 6.
  • the container 35 is located under the protrusion 33 to limit the size of the protective means 34.
  • the container 35 is placed under the layer of flexible material to improve the aesthetics of the calf rest system 30 by hiding the container 35.
  • the airbag 36 is stored in the container 35 in the rest position. During an impact, in particular frontal, of the vehicle, the airbag 36 is ejected from the container 35 and passes through the layer of flexible material. For this purpose, the airbag 36 is filled with air so as to form a pneumatic protection.
  • the airbag 36 In the deployed position, the airbag 36 then extends above the knees of the user to protect them.
  • the activation of an airbag is known, it will not be described in more detail.
  • the airbag 36 comprises a central portion 36a and two lobes 36b.
  • the central portion 36a extends substantially orthogonally to the support 31 and each lobe 36b extends substantially parallel to the support 31.
  • the airbag 36 thus has a substantially T-shaped shape so that each lobe 36b extends over an impression 32 of the support 31 in order to maintain the knee of the user. In other words, the knee of the user is blocked between a lobe 36b and a cavity 32.
  • the distance between a lobe 36b and a cavity 32 is defined by the length of the central portion 36a.
  • an airbag 36 on the calf system 30 keeps the cushion as close to the user's knees regardless of the user's position which minimizes the dimensions of such a cushion.
  • Such integration is particularly advantageous in autonomous driving mode in which the position of the driver's knees is very different.
  • the T-shape of the airbag helps to optimize the protection of the knees of the user.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Air Bags (AREA)

Abstract

The invention relates to a motor vehicle seat (1) comprising a seat portion (10) and a calf-rest system (30) including a support (31) designed to receive the calves of the vehicle user sitting on the seat (10), said support (31) comprising protection means including at least one airbag (36) designed to protect the user's knees.

Description

SIEGE DE VEHICULE AUTOMOBILE COMPRENANT UN COUSSIN GONFLABLE DE  MOTOR VEHICLE SEAT COMPRISING AN INFLATABLE CUSHION OF
SECURITE  SECURITY
[001 ] L'invention concerne, de façon générale, le domaine de la protection des occupants dans un habitacle de véhicule, en particulier dans un véhicule autonome. [001] The invention relates, in general, the field of occupant protection in a vehicle interior, particularly in a self-driving vehicle.
[002] L'invention porte plus particulièrement sur un siège de véhicule automobile comprenant un système de protection des genoux d'un occupant du véhicule. [002] The invention relates more particularly to a motor vehicle seat comprising a knee protection system of an occupant of the vehicle.
[003] De manière connue, les véhicules automobiles actuels comprennent généralement un ou plusieurs dispositif(s) de protection, communément désignés airbags, autrement appelés coussins gonflables de sécurité. Un tel dispositif de protection comprend un coussin apte à se déployer et à se gonfler quasi instantanément en cas de choc, de façon à protéger un ou plusieurs occupant(s) d'un véhicule. Il est notamment connu des dispositifs de protection frontaux, désignés airbags frontaux, et des dispositifs de protection latéraux, désignés airbags latéraux. [004] Les dispositifs de protection frontaux sont généralement intégrés dans le volant du véhicule, dans le but de protéger le conducteur, et dans le tableau de bord face au passager avant afin de permettre la protection de ce dernier en cas de choc frontal. [003] In a known manner, current motor vehicles generally comprise one or more protection device (s), commonly referred to as airbags, otherwise known as airbags. Such a protective device comprises a cushion able to deploy and inflate almost instantly in the event of impact, so as to protect one or more occupants of a vehicle. In particular, frontal protection devices, referred to as front airbags, and side protection devices, referred to as side airbags, are known. [004] The frontal protection devices are generally integrated in the steering wheel of the vehicle, in order to protect the driver, and in the dashboard in front of the front passenger to allow the protection of the latter in case of frontal impact.
[005] Il est également connu par le document DE 202004009698 un airbag pour genoux monté sous le tableau de bord dans l'espace pour les jambes d'un occupant du véhicule afin de protéger les genoux de ce dernier en cas de choc frontal. [005] It is also known from DE 202004009698 a knee airbag mounted under the dashboard in the space for the legs of a vehicle occupant to protect the knees of the latter in case of frontal impact.
[006] Cependant, une telle solution présente des inconvénients. En effet, avec le développement des véhicules autonomes, la position des occupants du véhicule, et notamment celle du conducteur, évolue. En effet, en mode de conduite autonome du véhicule, le conducteur passe d'une position de conduite, dans laquelle ses pieds sont placés sur les pédales de commande du véhicule, à une position de détente, dans laquelle ses jambes sont relevées ou inclinées afin d'augmenter son confort. [006] However, such a solution has drawbacks. Indeed, with the development of autonomous vehicles, the position of the occupants of the vehicle, and in particular that of the driver, evolves. Indeed, in autonomous driving mode of the vehicle, the driver moves from a driving position, in which his feet are placed on the vehicle's control pedals, to a relaxing position, in which his legs are raised or inclined to to increase comfort.
[007] Dans une telle position de détente, l'airbag pour genoux placé sous le tableau de bord ne permet pas une protection optimale des genoux du conducteur. [007] In such a relaxation position, the knee airbag placed under the dashboard does not provide optimum protection of the driver's knees.
[008] L'invention vise donc à résoudre au moins partiellement ces inconvénients en proposant un système de protection d'un occupant du véhicule automobile qui soit aisé et fiable à mettre en œuvre et permette une protection optimale des genoux de l'occupant, notamment en position de détente dans un véhicule en mode de conduite autonome. [008] The invention therefore aims to at least partially solve these disadvantages by providing a protective system of an occupant of the motor vehicle which is easy and reliable to implement and provides optimum protection of the knees of the occupant, including in a relaxed position in a vehicle in autonomous driving mode.
[009] Pour parvenir à ce résultat, la présente invention concerne un siège de véhicule automobile comprenant une assise et un système de repose-mollet comprenant un support adapté pour recevoir les mollets d'un utilisateur du véhicule assis sur ladite assise, ledit support comprenant des moyens de protection comportant au moins un coussin gonflable de sécurité adapté pour protéger les genoux dudit utilisateur du véhicule automobile. [009] To achieve this result, the present invention relates to a motor vehicle seat comprising a seat and a calf rest system comprising a support adapted to receive the calves of a vehicle user sitting on said seat, said support comprising protection means comprising at least one airbag adapted to protect the knees of said user of the motor vehicle.
[0010] Grâce au siège selon l'invention, les dimensions du coussin gonflable de protection des genoux d'un utilisateur du véhicule sont minimisées grâce à son intégration dans le système de repose-mollet qui permet de placer le coussin au plus près des genoux. Ceci permet d'optimiser la protection des genoux tout en minimisant le volume et le nombre de coussins nécessaires et donc les coûts des moyens de protection. De plus, cette intégration est plus aisée et moins coûteuse que sous la planche de bord du véhicule. Enfin, le coussin gonflable se déploie au droit des genoux, ce qui permet d'augmenter la protection des genoux. With the seat according to the invention, the dimensions of the knee protection airbag of a user of the vehicle are minimized through its integration into the calfrest system that allows to place the cushion closer to the knees . This optimizes the protection of the knees while minimizing the volume and the number of cushions needed and therefore the costs of the means of protection. In addition, this integration is easier and less expensive than under the dashboard of the vehicle. Finally, the airbag deploys to the right knees, which increases the protection of the knees.
[001 1 ] Avantageusement, le support comprend deux empreintes de mollet, chaque empreinte étant adaptée pour recevoir un des mollets de l'utilisateur du véhicule, lesdits moyens de protection étant montés entre les deux empreintes de mollet. [0012] Avantageusement, le coussin gonflable de protection comprend deux lobes, chaque lobe étant adapté pour s'étendre, en position déployée, sensiblement parallèlement au support. [001 1] Advantageously, the support comprises two calf prints, each fingerprint being adapted to receive one of the calves of the user of the vehicle, said protection means being mounted between the two calf prints. Advantageously, the airbag comprises two lobes, each lobe being adapted to extend, in the deployed position, substantially parallel to the support.
[0013] Avantageusement, chaque lobe est adapté pour s'étendre, en position déployée, au-dessus d'une empreinte de manière à protéger un des genoux de l'utilisateur du véhicule. Advantageously, each lobe is adapted to extend, in the deployed position, above an impression so as to protect one of the user's knees of the vehicle.
[0014] Avantageusement, le coussin gonflable de sécurité comprend en outre une portion centrale adaptée pour s'étendre sensiblement orthogonalement au support de manière à maintenir les lobes à une distance prédéterminée du support. Advantageously, the airbag further comprises a central portion adapted to extend substantially orthogonal to the support so as to maintain the lobes at a predetermined distance from the support.
[0015] Avantageusement, le coussin gonflable de sécurité présente une forme sensiblement en T en position déployée. [0016] Avantageusement, les moyens de protection comprennent un container de stockage du coussin gonflable de sécurité, ledit container étant placé sous le support. Advantageously, the airbag has a substantially T-shaped in the deployed position. Advantageously, the protection means comprise a storage container of the airbag, said container being placed under the support.
[0017] Avantageusement, le container est placé entre les empreintes. Advantageously, the container is placed between the footprints.
[0018] Avantageusement, le coussin gonflable de sécurité est adapté pour traverser le support lors de son déploiement. Advantageously, the airbag is adapted to pass through the support during its deployment.
[0019] L'invention concerne également un véhicule automobile comprenant au moins un siège tel que décrit précédemment. The invention also relates to a motor vehicle comprising at least one seat as described above.
[0020] D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée des modes de réalisation de l'invention, donnés à titre d'exemple uniquement, et en référence aux dessins qui montrent : Other features and advantages of the invention will appear on reading the detailed description of the embodiments of the invention, given by way of example only, and with reference to the drawings which show:
• la figure 1 , un schéma d'une forme de réalisation du siège selon l'invention adapté pour être monté dans un véhicule automobile, FIG. 1, a diagram of an embodiment of the seat according to the invention adapted to be mounted in a motor vehicle,
• la figure 2, un schéma du siège de la figure 1 dans lequel les moyens de protection sont en position déployée, · la figure 3, un schéma des moyens de protection en position déployée, FIG. 2, a diagram of the seat of FIG. 1 in which the protection means are in the deployed position, FIG. 3 a diagram of the protection means in the deployed position,
• les figures 4 à 6, des schémas de différents états du siège de la figure 1 sur lequel est assis un utilisateur. • Figures 4 to 6, diagrams of different states of the seat of Figure 1 on which sits a user.
[0021 ] Dans ce qui va suivre, les modes de réalisation décrits s'attachent plus particulièrement à une mise en œuvre d'un siège selon l'invention au sein d'un véhicule automobile. Cependant, toute mise en œuvre dans un contexte différent, en particulier dans tout type de véhicule, est également visée par la présente invention. In what follows, the described embodiments focus more particularly on an implementation of a seat according to the invention within a motor vehicle. However, any implementation in a different context, in particular in any type of vehicle, is also covered by the present invention.
[0022] Les figures 1 et 2 représentent un siège 1 adapté pour être monté dans un véhicule automobile (non représenté). Un tel siège 1 est, de préférence un siège avant, de préférence encore le siège du conducteur du véhicule automobile. [0023] Le siège 1 comprend une assise 10 sur laquelle un utilisateur du véhicule peut s'assoir, un dossier 20 et un système de repose-mollet 30. Figures 1 and 2 show a seat 1 adapted to be mounted in a motor vehicle (not shown). Such a seat 1 is preferably a front seat, preferably still the seat of the driver of the motor vehicle. The seat 1 comprises a seat 10 on which a user of the vehicle can sit, a backrest 20 and a calf rest system 30.
[0024] L'assise 10 et le dossier 20 permettent à l'utilisateur de s'assoir de manière classique sur le siège 1 à l'intérieur du véhicule. [0025] Le véhicule selon l'invention est un véhicule comprenant un mode de conduite autonome dans lequel un système de commande du véhicule contrôle de manière automatique les déplacements, notamment longitudinal et latéral, du véhicule sur la voie de circulation. Cependant, le véhicule pourrait ne pas comprendre un tel mode. [0026] Afin d'augmenter le confort de l'utilisateur assis sur le siège 1 , le système de repose-mollet 30 permet à l'utilisateur de poser ses mollets. Dans ce but et en référence aux figures 1 et 2, le système de repose-mollet 30 comprend un support 31 , de préférence se présentant sous la forme d'une coiffe, adapté pour recevoir les mollets de l'utilisateur. Le support 31 présente une forme adaptée pour recevoir les deux mollets de l'utilisateur. En particulier, en référence à la figure 3, le support 31 comprend deux empreintes 32 présentant une forme concave ou creuse adaptée à recevoir un mollet. Dans la forme de réalisation représentée à la figure 3, chaque empreinte 32 se présente sous la forme d'une rainure s'étendant selon l'axe longitudinal du véhicule. The seat 10 and the backrest 20 allow the user to sit in a conventional manner on the seat 1 inside the vehicle. The vehicle according to the invention is a vehicle comprising an autonomous driving mode in which a vehicle control system automatically controls the movements, including longitudinal and lateral, of the vehicle on the taxiway. However, the vehicle might not understand such a mode. In order to increase the comfort of the user sitting on the seat 1, the calf rest system 30 allows the user to rest his calves. For this purpose and with reference to Figures 1 and 2, the calf rest system 30 comprises a support 31, preferably in the form of a cap, adapted to receive the calves of the user. The support 31 has a shape adapted to receive the two calves of the user. In particular, with reference to FIG. 3, the support 31 comprises two cavities 32 having a concave or hollow shape adapted to receive a calf. In the embodiment shown in Figure 3, each cavity 32 is in the form of a groove extending along the longitudinal axis of the vehicle.
[0027] Par axe longitudinal du véhicule, on entend la direction longitudinale selon laquelle le véhicule circule sur une voie de circulation. By longitudinal axis of the vehicle is meant the longitudinal direction in which the vehicle is traveling on a taxiway.
[0028] Le support 31 comprend, entre les deux empreintes 32, une forme convexe, désignée protubérance 33. Autrement dit, le support 31 présente, en vue en coupe, une surface supérieure en forme ondulée. The support 31 comprises, between the two cavities 32, a convex shape, designated protrusion 33. In other words, the support 31 has, in sectional view, an upper surface in undulating form.
[0029] Pour augmenter le confort de l'utilisateur, le support 31 est recouvert d'une couche (non représentée) réalisée dans un matériau flexible, tel que de la mousse ou du tissu. To increase the comfort of the user, the support 31 is covered with a layer (not shown) made of a flexible material, such as foam or fabric.
[0030] De plus, afin d'optimiser le confort de l'utilisateur, le système de repose-mollet 30 comprend des moyens de réglage (non représentés) de la position de le support 31 . Le système de repose-mollet 31 peut ainsi basculer entre une position de stockage, comme illustré à la figure 4, et une pluralité de positions déployées, dont une est représentée à la figure 5. In addition, in order to optimize the comfort of the user, the calf rest system 30 comprises adjustment means (not shown) of the position of the support 31. The calf rest system 31 can thus switch between a storage position, as shown in FIG. 4, and a plurality of deployed positions, one of which is shown in FIG.
[0031 ] En position de stockage, comme illustré à la figure 4, le système de repose-mollet 30 s'étend sous l'assise 10. En position de stockage, les mollets de l'utilisateur ne sont pas en appuie sur le support 31 . Ceci permet notamment au conducteur du véhicule d'actionner librement les pédales d'accélérateur et de frein du véhicule. [0032] Lorsque l'utilisateur désire utiliser le système de repose-mollet 30, notamment lorsque le véhicule passe en mode conduite autonome et que le conducteur n'a plus besoin d'actionner les pédales, l'utilisateur bascule le système de repose-mollet 30 dans une position déployée comme illustré à la figure 5. Pour ce faire, le support 31 est déplacé vers le haut, de manière manuelle ou automatique, afin de permettre à l'utilisateur d'appuyer ses mollets sur le support 31 . Avantageusement, le système de repose-mollet 30 présente une pluralité de positions déployées, chacune correspondant à une hauteur du support 31 afin de permettre à l'utilisateur d'ajuster la position. In the storage position, as shown in Figure 4, the calf rest system 30 extends under the seat 10. In the storage position, the calves of the user are not supported on the support 31. This allows the driver of the vehicle to freely operate the accelerator and brake pedals of the vehicle. When the user wishes to use the calf rest system 30, especially when the vehicle switches to autonomous driving mode and the driver no longer needs to operate the pedals, the user switches the system of rest calf 30 in an extended position as shown in Figure 5. To do this, the support 31 is moved upwardly, manually or automatically, to allow the user to press his calves on the support 31. Advantageously, the calf rest system 30 has a plurality of deployed positions, each corresponding to a height of the support 31 to allow the user to adjust the position.
[0033] Un tel réglage de la position d'un système de repose-mollet 30 étant connu, il ne sera pas décrit plus en détail. Such adjustment of the position of a calf rest system 30 is known, it will not be described in more detail.
[0034] Avantageusement, lorsque l'utilisateur pose ses mollets sur le support 31 , chaque mollet vient se loger dans une empreinte 32. Ainsi, les mollets sont maintenus latéralement afin d'éviter qu'ils ne glissent lorsque le véhicule est en déplacement. Advantageously, when the user puts his calves on the support 31, each calf is housed in an impression 32. Thus, the calves are held laterally to prevent them from slipping when the vehicle is moving.
[0035] Comme illustré à la figure 3, le système de repose-mollet 30 selon l'invention comprend en outre des moyens de protection 34 des genoux de l'utilisateur. As illustrated in Figure 3, the calf rest system 30 according to the invention further comprises protection means 34 of the user's knees.
[0036] Selon un aspect de l'invention, les moyens de protection 34 sont montés au niveau de la protubérance 33. Les moyens de protection 34 comprennent un container 35 et un coussin gonflable de sécurité 36 adapté pour être rempli d'air lors d'un choc du véhicule comme illustré aux figures 2, 3 et 6. [0037] Le container 35 est situé sous la protubérance 33 afin de limiter l'encombrement des moyens de protection 34. De préférence, le container 35 est placé sous la couche de matériau flexible afin d'améliorer l'esthétique du système de repose-mollet 30 en cachant le container 35. Le coussin gonflable de sécurité 36 est stocké dans le container 35 en position de repos. [0038] Lors d'un choc, notamment frontal, du véhicule, le coussin gonflable de sécurité 36 est éjecté du container 35 et traverse la couche de matériau flexible. Dans ce but, le coussin gonflable de sécurité 36 est rempli d'air de manière à former une protection pneumatique. En position déployée, le coussin gonflable de sécurité 36 s'étend alors au- dessus des genoux de l'utilisateur afin de les protéger. [0039] L'activation d'un coussin gonflable de sécurité étant connue, elle ne sera pas décrite plus en détail. [0040] Le coussin gonflable de sécurité 36 comprend une portion centrale 36a et deux lobes 36b. La portion centrale 36a s'étend sensiblement orthogonalement au support 31 et chaque lobe 36b s'étend sensiblement parallèlement au support 31 . Le coussin gonflable de sécurité 36 présente ainsi une forme sensiblement en T de manière à ce que chaque lobe 36b s'étende au-dessus d'une empreinte 32 du support 31 afin de maintenir le genou de l'utilisateur. Autrement dit, le genou de l'utilisateur est bloqué entre un lobe 36b et une empreinte 32. La distance entre un lobe 36b et une empreinte 32 est définie par la longueur de la portion centrale 36a. According to one aspect of the invention, the protection means 34 are mounted at the protuberance 33. The protection means 34 comprise a container 35 and an airbag 36 adapted to be filled with air when the device is in use. a shock of the vehicle as illustrated in Figures 2, 3 and 6. The container 35 is located under the protrusion 33 to limit the size of the protective means 34. Preferably, the container 35 is placed under the layer of flexible material to improve the aesthetics of the calf rest system 30 by hiding the container 35. The airbag 36 is stored in the container 35 in the rest position. During an impact, in particular frontal, of the vehicle, the airbag 36 is ejected from the container 35 and passes through the layer of flexible material. For this purpose, the airbag 36 is filled with air so as to form a pneumatic protection. In the deployed position, the airbag 36 then extends above the knees of the user to protect them. The activation of an airbag is known, it will not be described in more detail. The airbag 36 comprises a central portion 36a and two lobes 36b. The central portion 36a extends substantially orthogonally to the support 31 and each lobe 36b extends substantially parallel to the support 31. The airbag 36 thus has a substantially T-shaped shape so that each lobe 36b extends over an impression 32 of the support 31 in order to maintain the knee of the user. In other words, the knee of the user is blocked between a lobe 36b and a cavity 32. The distance between a lobe 36b and a cavity 32 is defined by the length of the central portion 36a.
[0041 ] L'intégration d'un coussin gonflable de sécurité 36 sur le système de repose- mollet 30 permet de maintenir le coussin au plus près des genoux de l'utilisateur quelle que soit la position de l'utilisateur ce qui permet de minimiser les dimensions d'un tel coussin. Une telle intégration est particulièrement avantageuse en mode de conduite autonome dans lequel la position des genoux du conducteur est très différente. De plus, la forme en T du coussin gonflable de sécurisation permet d'optimiser la protection des genoux de l'utilisateur. The integration of an airbag 36 on the calf system 30 keeps the cushion as close to the user's knees regardless of the user's position which minimizes the dimensions of such a cushion. Such integration is particularly advantageous in autonomous driving mode in which the position of the driver's knees is very different. In addition, the T-shape of the airbag helps to optimize the protection of the knees of the user.

Claims

Revendications claims
Siège (1 ) de véhicule automobile comprenant une assise (10) et un système de repose-mollet (30) comprenant un support (31 ) adapté pour recevoir les mollets d'un utilisateur du véhicule assis sur ladite assise (10), ledit support (31 ) comprenant des moyens de protection (34) comportant au moins un coussin gonflable de sécurité (36) adapté pour protéger les genoux dudit utilisateur du véhicule automobile. Seat (1) for a motor vehicle comprising a seat (10) and a calf rest system (30) comprising a support (31) adapted to receive the calves of a user of the vehicle sitting on said seat (10), said support (31) comprising protection means (34) comprising at least one airbag (36) adapted to protect the knees of said user of the motor vehicle.
Siège (1 ) selon la revendication 1 , dans lequel le support (31 ) comprend deux empreintes (32) de mollet, chaque empreinte (32) étant adaptée pour recevoir un des mollets de l'utilisateur du véhicule, lesdits moyens de protection (34) étant montés entre les deux empreintes (32) de mollet. Seat (1) according to claim 1, wherein the support (31) comprises two recesses (32) of calf, each recess (32) being adapted to receive one of the calves of the user of the vehicle, said means of protection (34) ) being mounted between the two cavities (32) of calf.
Siège (1 ) selon l'une des revendications précédentes, dans lequel le coussin gonflable de protection (36) comprend deux lobes (36b), chaque lobe (36b) étant adapté pour s'étendre, en position déployée, sensiblement parallèlement au support (31 ). Seat (1) according to one of the preceding claims, wherein the airbag (36) comprises two lobes (36b), each lobe (36b) being adapted to extend, in the deployed position, substantially parallel to the support ( 31).
Siège (1 ) selon la revendication précédente, dans lequel chaque lobe (36b) est adapté pour s'étendre, en position déployée, au-dessus d'une empreinte (32) de manière à protéger un des genoux de l'utilisateur du véhicule. Seat (1) according to the preceding claim, wherein each lobe (36b) is adapted to extend, in the deployed position, above an impression (32) so as to protect one of the knees of the user of the vehicle .
Siège (1 ) selon l'une des revendications 3 à 4, dans lequel le coussin gonflable de sécurité (36) comprend en outre une portion centrale (36a) adaptée pour s'étendre orthogonalement au support (31 ), de manière à maintenir les lobes (36b) à une distance prédéterminée du support (31 ). Seat (1) according to one of claims 3 to 4, wherein the airbag (36) further comprises a central portion (36a) adapted to extend orthogonally to the support (31), so as to maintain the lobes (36b) at a predetermined distance from the support (31).
Siège (1 ) selon la revendication précédente, dans lequel le coussin gonflable de sécurité (36) présente une forme sensiblement en T en position déployée. Seat (1) according to the preceding claim, wherein the airbag (36) has a substantially T-shaped in the deployed position.
Siège (1 ) selon l'une des revendications précédentes, dans lequel les moyens de protection (34) comprennent un container (35) de stockage du coussin gonflable de sécurité (36), ledit container (35) étant placé sous le support (31 ). Seat (1) according to one of the preceding claims, wherein the protection means (34) comprise a container (35) for storing the airbag (36), said container (35) being placed under the support (31). ).
Siège (1 ) selon les revendications 2 et 7, dans lequel le container (35) est placé entre les empreintes (32). Seat (1) according to claims 2 and 7, wherein the container (35) is placed between the cavities (32).
9. Siège (1 ) selon l'une des revendications 7 à 8, dans lequel le coussin gonflable de sécurité (36) est adapté pour traverser le support (31 ) lors de son déploiement. 9. Seat (1) according to one of claims 7 to 8, wherein the airbag (36) is adapted to pass through the support (31) during its deployment.
10. Véhicule automobile comprenant au moins un siège (1 ) selon l'une des revendications précédentes. 10. Motor vehicle comprising at least one seat (1) according to one of the preceding claims.
PCT/FR2018/050918 2017-05-31 2018-04-12 Motor vehicle seat comprising an airbag WO2018220300A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1754803 2017-05-31
FR1754803A FR3066961B1 (en) 2017-05-31 2017-05-31 MOTOR VEHICLE SEAT COMPRISING A SAFETY INFLATABLE CUSHION

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WO2018220300A1 true WO2018220300A1 (en) 2018-12-06

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042190A (en) * 1997-09-19 2000-03-28 Daimlerchrysler Ag Vehicle seat
DE10039661A1 (en) * 1999-08-16 2001-03-01 Trw Inc Passenger vehicle safety system includes inflatable airbags onto lower leg and feet to flex knee and swing leg back thus reducing pelvic load assisted by seat belt restraint.
DE202004009698U1 (en) 2004-05-28 2004-09-30 Autoliv Development Ab Motor vehicle has knee airbag installed in footwell so that maximum width in inflated state is greater than available space between internal structure of vehicle and center console
DE102014213301A1 (en) * 2014-07-09 2016-01-14 Volkswagen Aktiengesellschaft Restraint device for persons in a motor vehicle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6042190A (en) * 1997-09-19 2000-03-28 Daimlerchrysler Ag Vehicle seat
DE10039661A1 (en) * 1999-08-16 2001-03-01 Trw Inc Passenger vehicle safety system includes inflatable airbags onto lower leg and feet to flex knee and swing leg back thus reducing pelvic load assisted by seat belt restraint.
DE202004009698U1 (en) 2004-05-28 2004-09-30 Autoliv Development Ab Motor vehicle has knee airbag installed in footwell so that maximum width in inflated state is greater than available space between internal structure of vehicle and center console
DE102014213301A1 (en) * 2014-07-09 2016-01-14 Volkswagen Aktiengesellschaft Restraint device for persons in a motor vehicle

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FR3066961A1 (en) 2018-12-07
FR3066961B1 (en) 2019-06-21

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