WO2016062938A1 - Firing channel for air bag - Google Patents
Firing channel for air bag Download PDFInfo
- Publication number
- WO2016062938A1 WO2016062938A1 PCT/FR2015/052712 FR2015052712W WO2016062938A1 WO 2016062938 A1 WO2016062938 A1 WO 2016062938A1 FR 2015052712 W FR2015052712 W FR 2015052712W WO 2016062938 A1 WO2016062938 A1 WO 2016062938A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- firing channel
- clipping
- wall
- safety cushion
- firing
- Prior art date
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Classifications
-
- 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
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
-
- 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
- B60R21/217—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together
- B60R2021/2172—Inflation fluid source retainers, e.g. reaction canisters; Connection of bags, covers, diffusers or inflation fluid sources therewith or together the cover being connected to the surrounding part and to the module, e.g. floating mounts
Definitions
- the present invention generally relates to a cabin part commonly known as firing channel, generally mounted on a trim part of a passenger compartment of a motor vehicle (for example a dashboard).
- the firing channel is a part arranged between the dressing part and a security module, and whose main functions are to position the security module in or relative to the dressing part, and to provide a guiding channel to guide the safety cushion (or air bag) of the security module out of the dressing room.
- An object of the present invention is to meet the disadvantages of the prior art mentioned above and in particular, first of all, to propose a firing channel with clips or simple clipping tabs, which can be mounted on the dressing part without assistance, and without compromising the integrity of the assembly during deployment of the security module.
- a first aspect of the invention relates to a firing channel for a safety cushion, arranged to be clipped onto a trim part of a passenger compartment of a motor vehicle, the safety cushion being arranged in the front trim piece deployment of the airbag during a vehicle shock, the firing channel comprising:
- At least one wall forming a guide channel for guiding the safety cushion out of the dressing part during deployment of said safety cushion
- At least one clipping portion arranged to take a clipping position on the cladding piece and thus ensure that the firing channel is held in place on the cladding piece
- the firing channel comprises at least one locking portion, arranged facing said at least one clipping portion, and in that said at least one wall is arranged to deform during deployment, so as to push said at least one locking portion in a locking position of said at least one clipping portion in the holding position.
- the firing channel cleverly uses the deformation imposed on the wall by the safety cushion, to lock the clipping portions in their holding position.
- the firing channel thus comprises a locking portion which is pushed by the wall when it is deformed by the safety cushion being deployed.
- the clipping portion thus locked can not move back and continues to ensure the fixing of the firing channel on the dressing room.
- the clipping portion does not need a hook or return to remain engaged with the trim piece, and it can be expected to reduce its rigidity, since locking in the holding position is provided by the locking portion, when the significant efforts related to the deployment are applied.
- said at least one locking portion is arranged between said at least one wall and said at least one clipping portion.
- said at least one locking portion is spaced from said at least one clipping portion so as to allow it a clipping movement imposed during the assembly of the firing channel on said dressing part.
- said at least one locking portion is a rib.
- a rib also makes it possible to reinforce the wall, in addition to providing a locking of the clipping portion during deployment.
- said at least one locking portion is integral with said at least one wall.
- This embodiment is easy to manufacture with an injection molding operation for example.
- said at least one clipping portion is a clipping lug arranged to deform elastically during an assembly operation of the firing channel on the dressing part, and then return to the holding position when the firing channel. is mounted on the dressing room.
- the firing channel comprises a hatch arranged to close the guide channel before deployment of the safety cushion, the hatch comprising a fusible portion arranged to break under a predetermined force of the bag, the predetermined force being arranged to deform said at least one wall so as to urge said at least one locking portion into a locking position.
- a second aspect of the invention is a security module comprising a firing channel according to the first aspect of the invention.
- a third aspect of the invention is a vehicle dashboard forming a trim piece of a passenger compartment of a motor vehicle and comprising at least one firing channel according to the first aspect of the invention, and / or a module of security according to the second aspect of the invention.
- the vehicle dashboard comprises a clipping insert.
- a fourth aspect of the invention is a motor vehicle comprising at least one firing channel according to the first aspect of the invention, and / or a security module according to the second aspect of the invention, and / or a dashboard. according to the third aspect of the invention.
- FIG. 1 represents a detail of a first example of a firing channel according to the invention
- FIGS. 2a to 2d show, in chronological order, the steps for mounting the firing channel of FIG. 1 on a vehicle dashboard;
- FIG. 3 represents the firing channel of FIG. 1 during the deployment of a safety cushion
- FIG. 4 represents a detail of a second example of a firing channel according to the invention.
- FIGS. 5a to 5d show in chronological order the steps of mounting the firing channel of FIG. 4 on a vehicle dashboard;
- FIG. 6 represents the firing channel of FIG. 4 during the deployment of a safety cushion
- Figure 1 shows part of a firing channel according to the present invention.
- the firing channel comprises a wall 10 which forms a guide channel 15, closed by a hatch 40.
- the hatch 40 may for example form the outer surface of a dashboard of a motor vehicle.
- the guide channel 15 is located below the outer surface of the dashboard, and serves to guide outwardly a safety cushion (not shown) during its deployment, in case of vehicle impact for example.
- the firing channel comprises several clipping portions 20 (only one of which is visible in FIG. 1) which are clipping tabs which can deform in bending, as will be explained in FIGS. at 2d.
- the firing channel also comprises ribs 30 facing at least a portion of the clipping portions 20, in order to lock the latter when the wall 10 is deformed by the safety cushion being deployed, as will be explained in FIG. figure 3.
- FIGS. 2a to 2d show the progress of a mounting operation of the firing channel on a clipping insert 50 of a dashboard.
- FIGS. 2b and 2c show the clipping portion 20 to deform elastically to allow the clipping insert 50 to pass through the dashboard.
- the firing channel is mounted on the dashboard and the clipping portion 20 is returned to a holding position, wherein it ensures the maintenance position of the firing channel on the dashboard.
- the rib 30 is sufficiently spaced from the clipping portion 20 to allow it to deform during clipping on the clipping insert 50.
- FIG. 3 represents the firing channel mounted on the dashboard, during a deployment of the safety cushion, and in particular before the opening of the hatch 40, at the very beginning of deployment. It is at this moment that the forces on the components are very important, because of the pressure exerted by the safety cushion in the guide channel 15, which is represented by the arrows on the wall 10 and the hatch 40.
- pressure exerted by the safety cushion causes a deformation of the wall 10, (with fine mixed pits the undeformed wall 10).
- the deformation of the wall 10 causes a movement of the rib 30 which is pushed by the wall 10 to a locking position. Indeed, the rib 30 pushed by the wall 10 is closer to the clipping portion 20, which is thus locked in the holding position, which prevents it from backing up and escaping from the insert of clipping 50 of the dashboard.
- the rib 30 locks in position the clipping portion 20, which can therefore be less rigid, to facilitate the assembly operations shown in Figures 2a to 2d, so as to avoid the use of a press or specific tools to clip the firing channel on the dashboard.
- FIG. 4 shows a second implementation of a firing channel according to the present invention, with an "inverted" clipping portion. That is to say that the clipping portion 25 is not anchored on the same plane as the hatch 40, but on a vertical wall parallel to the wall 10. The rest of the firing channel is identical to the first setting in particular, with the rib 30 connected to the wall 10 which forms the guide channel 15 for the safety cushion.
- Figures 5a to 5d show the clipping steps of the firing channel of Figure 4 on a clipping insert 50 dashboard. As in Figures 2a to 2d, we see the clipping portion 25 to clear to let the clipping insert 50, through the spacing with the rib 30, and then return to the holding position to ensure the assembly of the channel firing on the clipping insert 50.
- FIG. 1 shows a second implementation of a firing channel according to the present invention, with an "inverted" clipping portion. That is to say that the clipping portion 25 is not anchored on the same plane as the hatch 40, but on a vertical wall parallel to the wall 10. The rest of
- FIG. 6 represents the firing channel of FIG. 4 mounted on the dashboard, during a deployment of the safety cushion, and in particular before the opening of the hatch 40, at the very beginning of deployment.
- the pressure exerted by the safety cushion forces a displacement of the wall 10 which pushes the rib 30, thus locking the clipping portion 25 in the holding position.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Air Bags (AREA)
Abstract
The invention relates to a firing channel for an air bag, arranged such as to be clipped onto a trim part, including: at least one wall (10) forming a guiding channel (15) for guiding the air bag, at least one clipping portion (20, 25) arranged such as to adopt a clipping position on the trim part and to thus ensure that the firing channel is maintained in place on the trim part, characterised in that the firing channel includes at least one locking portion, arranged opposite said at least one clipping portion (20, 25).
Description
CANAL D E TI R PO U R CO U SS I N D E S EC U R ITE ECU R ITE D E R TU RAL CHANNEL
La présente invention concerne de manière générale une pièce d'habitacle communément appelée canal de tir, généralement montée sur une pièce d'habillage d'un habitacle de véhicule automobile (par exemple une planche de bord). Le canal de tir est une pièce agencée entre la pièce d'habillage et un module de sécurité, et qui a pour fonctions principales de positionner le module de sécurité dans ou par rapport à la pièce d'habillage, et de fournir un canal de guidage pour guider hors de la pièce d'habillage le coussin de sécurité (ou airbag) du module de sécurité . The present invention generally relates to a cabin part commonly known as firing channel, generally mounted on a trim part of a passenger compartment of a motor vehicle (for example a dashboard). The firing channel is a part arranged between the dressing part and a security module, and whose main functions are to position the security module in or relative to the dressing part, and to provide a guiding channel to guide the safety cushion (or air bag) of the security module out of the dressing room.
Le document US7980586B2 divulgue un canal de tir qui est clipsé sur une planche de bord. Cependant, la forme des clips ou pattes de clipsage avec une forme en crochet, ou retour, impose de prévoir un rattrapage des jeux, ce qui augmente l'espace nécessaire pour implanter une telle solution. The document US7980586B2 discloses a firing channel which is clipped on a dashboard. However, the shape of the clips or clip claws with a hook shape, or return, requires to provide a catch-up games, which increases the space required to implement such a solution.
En alternative, on peut envisager d'utiliser des clips ou pattes de clipsage sans crochet ni retour, qui viendront simplement en butée sur la pièce d'habillage, mais dans ce cas, il faut prévoir une rigidité très importante pour éviter tout retour en arrière des clips ou pattes de clipsage. En effet, lors du déploiement du coussin de sécurité, les efforts subis par toute la structure sont très importants. De nombreuses déformations des pièces, y compris le canal de tir et/ou la pièce d'habillage sont observées, et sans crochet, ni retour, un recul des clips ou pattes de clipsage provoquerait une désolidarisation entre la pièce d'habillage et canal de tir et/ou module de sécurité. En conséquence, la rigidité des clips ou pattes de clipsage est accrue et impose de prévoir un montage avec une presse ou au moins une assistance à l'opérateur, en raison des efforts d'insertion importants. Un but de la présente invention est de répondre aux inconvénients de l'art antérieur mentionnés ci-dessus et en particulier, tout d'abord, de
proposer un canal de tir avec des clips ou pattes de clipsage simples, pouvant être monté sur la pièce d'habillage sans aide, et sans pour autant compromettre l'intégrité du montage lors du déploiement du module de sécurité. Pour cela un premier aspect de l'invention concerne un canal de tir pour coussin de sécurité, agencé pour être clipsé sur une pièce d'habillage d'un habitacle de véhicule automobile, le coussin de sécurité étant agencé dans la pièce d'habillage avant un déploiement du coussin de sécurité lors d'un choc véhicule, le canal de tir comprenant : Alternatively, it is possible to use clips or clip claws without hook or return, which will simply abut on the trim piece, but in this case, must provide a very high rigidity to avoid any return back clips or clips. Indeed, during the deployment of the safety cushion, the efforts suffered by the entire structure are very important. Many deformations of the parts, including the firing channel and / or the dressing part are observed, and without hook or return, a recoil clips or clipping lugs would cause a separation between the dressing room and channel shooting and / or security module. As a result, the rigidity of the clips or clipping lugs is increased and requires the provision of mounting with a press or at least assistance to the operator, because of significant insertion efforts. An object of the present invention is to meet the disadvantages of the prior art mentioned above and in particular, first of all, to propose a firing channel with clips or simple clipping tabs, which can be mounted on the dressing part without assistance, and without compromising the integrity of the assembly during deployment of the security module. For this a first aspect of the invention relates to a firing channel for a safety cushion, arranged to be clipped onto a trim part of a passenger compartment of a motor vehicle, the safety cushion being arranged in the front trim piece deployment of the airbag during a vehicle shock, the firing channel comprising:
- au moins une paroi formant un canal de guidage pour guider le coussin de sécurité hors de la pièce d'habillage lors d'un déploiement dudit coussin de sécurité, at least one wall forming a guide channel for guiding the safety cushion out of the dressing part during deployment of said safety cushion,
- au moins une portion de clipsage agencée pour prendre une position de clipsage sur la pièce d'habillage et assurer ainsi un maintien en place du canal de tir sur la pièce d'habillage, at least one clipping portion arranged to take a clipping position on the cladding piece and thus ensure that the firing channel is held in place on the cladding piece,
caractérisé en ce que le canal de tir comprend au moins une portion de verrouillage, agencée en regard de ladite au moins une portion de clipsage, et en ce que ladite au moins une paroi est agencée pour se déformer lors du déploiement, de sorte à pousser ladite au moins une portion de verrouillage dans une position de verrouillage de ladite au moins portion de clipsage en position de maintien. characterized in that the firing channel comprises at least one locking portion, arranged facing said at least one clipping portion, and in that said at least one wall is arranged to deform during deployment, so as to push said at least one locking portion in a locking position of said at least one clipping portion in the holding position.
Le canal de tir selon la présente mise en œuvre utilise astucieusement la déformation imposée à la paroi par le coussin de sécurité, pour verrouiller les portions de clipsage dans leur position de maintien. A cet effet, le canal de tir comprend donc une portion de verrouillage qui est poussée par la paroi lorsqu'elle est déformée par le coussin de sécurité en cours de déploiement. La portion de clipsage ainsi verrouillée ne peut pas reculer et continue à assurer la fixation du canal de tir sur la pièce d'habillage. En conséquence, la portion de clipsage n'a pas besoin de crochet ni de retour pour rester engagée avec la pièce d'habillage, et on peut prévoir de réduire sa rigidité,
puisque le verrouillage en position de maintien est procuré par la portion de verrouillage, lorsque les efforts importants liés au déploiement sont appliqués. The firing channel according to the present implementation cleverly uses the deformation imposed on the wall by the safety cushion, to lock the clipping portions in their holding position. For this purpose, the firing channel thus comprises a locking portion which is pushed by the wall when it is deformed by the safety cushion being deployed. The clipping portion thus locked can not move back and continues to ensure the fixing of the firing channel on the dressing room. As a result, the clipping portion does not need a hook or return to remain engaged with the trim piece, and it can be expected to reduce its rigidity, since locking in the holding position is provided by the locking portion, when the significant efforts related to the deployment are applied.
Avantageusement, ladite au moins une portion de verrouillage est agencée entre ladite au moins une paroi et ladite au moins une portion de clipsage. Advantageously, said at least one locking portion is arranged between said at least one wall and said at least one clipping portion.
Avantageusement ladite au moins une portion de verrouillage est espacée de ladite au moins une portion de clipsage de sorte à lui permettre un mouvement de clipsage imposé lors du montage du canal de tir sur ladite pièce d'habillage. Advantageously, said at least one locking portion is spaced from said at least one clipping portion so as to allow it a clipping movement imposed during the assembly of the firing channel on said dressing part.
Avantageusement, ladite au moins une portion de verrouillage est une nervure. Une telle nervure permet également de renforcer la paroi, en plus de procurer un verrouillage de la portion de clipsage lors du déploiement. Advantageously, said at least one locking portion is a rib. Such a rib also makes it possible to reinforce the wall, in addition to providing a locking of the clipping portion during deployment.
Avantageusement, ladite au moins une portion de verrouillage est solidaire de ladite au moins une paroi. Cette réalisation est aisée à fabriquer avec une opération de moulage par injection par exemple. Advantageously, said at least one locking portion is integral with said at least one wall. This embodiment is easy to manufacture with an injection molding operation for example.
Avantageusement, ladite au moins une portion de clipsage est une patte de clipsage agencée pour se déformer élastiquement lors d'une opération de montage du canal de tir sur la pièce d'habillage, et ensuite revenir dans la position de maintien lorsque le canal de tir est monté sur la pièce d'habillage. Advantageously, said at least one clipping portion is a clipping lug arranged to deform elastically during an assembly operation of the firing channel on the dressing part, and then return to the holding position when the firing channel. is mounted on the dressing room.
Avantageusement, le canal de tir comprend une trappe agencée pour fermer le canal de guidage avant déploiement du coussin de sécurité, la trappe comprenant une portion fusible agencée pour se rompre sous un effort prédéterminé du sac, l'effort prédéterminé étant agencé pour déformer ladite au moins une paroi de sorte à pousser ladite au moins une portion de verrouillage en position de verrouillage. Advantageously, the firing channel comprises a hatch arranged to close the guide channel before deployment of the safety cushion, the hatch comprising a fusible portion arranged to break under a predetermined force of the bag, the predetermined force being arranged to deform said at least one wall so as to urge said at least one locking portion into a locking position.
Un second aspect de l'invention est un module de sécurité comprenant un canal de tir selon le premier aspect de l'invention.
Un troisième aspect de l'invention est une planche de bord de véhicule formant une pièce d'habillage d'un habitacle de véhicule automobile et comprenant au moins un canal de tir selon le premier aspect de l'invention, et/ou un module de sécurité selon le second aspect de l'invention. Avantageusement, la planche de bord de véhicule comprend un insert de clipsage. A second aspect of the invention is a security module comprising a firing channel according to the first aspect of the invention. A third aspect of the invention is a vehicle dashboard forming a trim piece of a passenger compartment of a motor vehicle and comprising at least one firing channel according to the first aspect of the invention, and / or a module of security according to the second aspect of the invention. Advantageously, the vehicle dashboard comprises a clipping insert.
Un quatrième aspect de l'invention est un véhicule automobile comportant au moins un canal de tir selon le premier aspect de l'invention, et/ou un module de sécurité selon le second aspect de l'invention, et/ou une planche de bord selon le troisième aspect de l'invention. A fourth aspect of the invention is a motor vehicle comprising at least one firing channel according to the first aspect of the invention, and / or a security module according to the second aspect of the invention, and / or a dashboard. according to the third aspect of the invention.
D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description détaillée qui suit d'un mode de réalisation de l'invention donné à titre d'exemple nullement limitatif et illustré par les dessins annexés, dans lesquels : - la figure 1 représente un détail d'un premier exemple de canal de tir selon l'invention ; Other features and advantages of the present invention will appear more clearly on reading the following detailed description of an embodiment of the invention given by way of non-limiting example and illustrated by the appended drawings, in which: FIG. 1 represents a detail of a first example of a firing channel according to the invention;
- les figures 2a à 2d représentent en ordre chronologique des étapes de montage du canal de tir de la figure 1 sur une planche de bord de véhicule ; - la figure 3 représente le canal de tir de la figure 1 lors du déploiement d'un coussin de sécurité FIGS. 2a to 2d show, in chronological order, the steps for mounting the firing channel of FIG. 1 on a vehicle dashboard; FIG. 3 represents the firing channel of FIG. 1 during the deployment of a safety cushion
- la figure 4, représente un détail d'un deuxième exemple de canal de tir selon l'invention ; FIG. 4 represents a detail of a second example of a firing channel according to the invention;
- les figures 5a à 5d représentent en ordre chronologique des étapes de montage du canal de tir de la figure 4 sur une planche de bord de véhicule ; FIGS. 5a to 5d show in chronological order the steps of mounting the firing channel of FIG. 4 on a vehicle dashboard;
- la figure 6 représente le canal de tir de la figure 4 lors du déploiement d'un coussin de sécurité
La figure 1 représente une partie d'un canal de tir selon la présente invention. Le canal de tir comprend une paroi 10 qui forme un canal de guidage 15, fermé par une trappe 40. La trappe 40 peut par exemple former la surface extérieure d'une planche de bord d'un véhicule automobile. Le canal de guidage 15 est donc situé sous la surface extérieure de la planche de bord, et sert à guider vers l'extérieur un coussin de sécurité (non représenté) lors de son déploiement, en cas de choc véhicule par exemple. FIG. 6 represents the firing channel of FIG. 4 during the deployment of a safety cushion Figure 1 shows part of a firing channel according to the present invention. The firing channel comprises a wall 10 which forms a guide channel 15, closed by a hatch 40. The hatch 40 may for example form the outer surface of a dashboard of a motor vehicle. The guide channel 15 is located below the outer surface of the dashboard, and serves to guide outwardly a safety cushion (not shown) during its deployment, in case of vehicle impact for example.
Pour être fixé à la planche de bord, le canal de tir comprend plusieurs portions de clipsage 20 (dont une seule est visible sur la figure 1 ) qui sont des pattes de clipsage qui peuvent se déformer en flexion, comme cela sera expliqué aux figures 2a à 2d. To be fixed to the dashboard, the firing channel comprises several clipping portions 20 (only one of which is visible in FIG. 1) which are clipping tabs which can deform in bending, as will be explained in FIGS. at 2d.
Le canal de tir comprend également des nervures 30 en regard d'au moins une partie des portion de clipsage 20, afin de verrouiller ces dernières lorsque la paroi 10 est déformée par le coussin de sécurité en cours de déploiement, comme cela sera expliqué à la figure 3. The firing channel also comprises ribs 30 facing at least a portion of the clipping portions 20, in order to lock the latter when the wall 10 is deformed by the safety cushion being deployed, as will be explained in FIG. figure 3.
Les figures 2a à 2d montrent le déroulement d'une opération de montage du canal de tir sur un insert de clipsage 50 d'une planche de bord. On voit notamment aux figures 2b et 2c la portion de clipsage 20 se déformer élastiquement pour laisser passer l'insert de clipsage 50 de la planche de bord. A la figure 2d, le canal de tir est monté sur la planche de bord et la portion de clipsage 20 est revenue dans une position de maintien, dans laquelle elle assure le maintien en position du canal de tir sur la planche de bord. On peut remarquer que la nervure 30 est suffisamment espacée de la portion de clipsage 20 pour la laisser se déformer lors du clipsage sur l'insert de clipsage 50. Figures 2a to 2d show the progress of a mounting operation of the firing channel on a clipping insert 50 of a dashboard. In particular, FIGS. 2b and 2c show the clipping portion 20 to deform elastically to allow the clipping insert 50 to pass through the dashboard. In Figure 2d, the firing channel is mounted on the dashboard and the clipping portion 20 is returned to a holding position, wherein it ensures the maintenance position of the firing channel on the dashboard. It may be noted that the rib 30 is sufficiently spaced from the clipping portion 20 to allow it to deform during clipping on the clipping insert 50.
La figure 3 représente le canal de tir monté sur la planche de bord, lors d'un déploiement du coussin de sécurité, et en particulier avant l'ouverture de
la trappe 40, en tout début de déploiement. C'est à ce moment que les efforts sur les composants sont très importants, en raison de la pression exercée par le coussin de sécurité dans le canal de guidage 15, qui est représentée par les flèches sur la paroi 10 et la trappe 40. Cette pression exercée par le coussin de sécurité provoque une déformation de la paroi 10, (avec en traits mixtes fins la paroi 10 non déformée). La déformation de la paroi 10 provoque un mouvement de la nervure 30 qui est poussée par la paroi 10 vers une position de verrouillage. En effet, la nervure 30 poussée par la paroi 10 se rapproche au plus près de la portion de clipsage 20, qui se trouve donc verrouillée en position de maintien, ce qui l'empêche de reculer et de s'échapper de l'insert de clipsage 50 de la planche de bord. FIG. 3 represents the firing channel mounted on the dashboard, during a deployment of the safety cushion, and in particular before the opening of the hatch 40, at the very beginning of deployment. It is at this moment that the forces on the components are very important, because of the pressure exerted by the safety cushion in the guide channel 15, which is represented by the arrows on the wall 10 and the hatch 40. pressure exerted by the safety cushion causes a deformation of the wall 10, (with fine mixed pits the undeformed wall 10). The deformation of the wall 10 causes a movement of the rib 30 which is pushed by the wall 10 to a locking position. Indeed, the rib 30 pushed by the wall 10 is closer to the clipping portion 20, which is thus locked in the holding position, which prevents it from backing up and escaping from the insert of clipping 50 of the dashboard.
On comprend que la nervure 30 verrouille en position la portion de clipsage 20, qui peut donc quant à elle être moins rigide, pour faciliter les opérations de montage représentées aux figures 2a à 2d, de sorte à éviter l'usage d'une presse ou d'outils spécifiques pour clipser le canal de tir sur la planche de bord. It is understood that the rib 30 locks in position the clipping portion 20, which can therefore be less rigid, to facilitate the assembly operations shown in Figures 2a to 2d, so as to avoid the use of a press or specific tools to clip the firing channel on the dashboard.
La figure 4 représente une deuxième mise en œuvre d'un canal de tir selon la présente invention, avec une portion de clipsage 25 "inversée". C'est-à-dire que la portion de clipsage 25 n'est pas ancrée sur le même plan que la trappe 40, mais sur une paroi verticale parallèle à la paroi 10. Le reste du canal de tir est identique à la première mise en œuvre, avec notamment la nervure 30 liée à la paroi 10 qui forme le canal de guidage 15 pour le coussin de sécurité. Les figures 5a à 5d représentent les étapes de clipsage du canal de tir de la figure 4 sur un insert de clipsage 50 de planche de bord. Comme aux figures 2a à 2d, on voit la portion de clipsage 25 s'effacer pour laisser passer l'insert de clipsage 50, grâce à l'espacement avec la nervure 30, et ensuite revenir en position de maintien pour garantir le montage du canal de tir sur l'insert de clipsage 50.
La figure 6 représente le canal de tir de la figure 4 monté sur la planche de bord, lors d'un déploiement du coussin de sécurité, et en particulier avant l'ouverture de la trappe 40, en tout début de déploiement. Comme pour la première mise en œuvre, la pression exercée par le coussin de sécurité force un déplacement de la paroi 10 qui pousse la nervure 30, verrouillant ainsi la portion de clipsage 25 en position de maintien. FIG. 4 shows a second implementation of a firing channel according to the present invention, with an "inverted" clipping portion. That is to say that the clipping portion 25 is not anchored on the same plane as the hatch 40, but on a vertical wall parallel to the wall 10. The rest of the firing channel is identical to the first setting in particular, with the rib 30 connected to the wall 10 which forms the guide channel 15 for the safety cushion. Figures 5a to 5d show the clipping steps of the firing channel of Figure 4 on a clipping insert 50 dashboard. As in Figures 2a to 2d, we see the clipping portion 25 to clear to let the clipping insert 50, through the spacing with the rib 30, and then return to the holding position to ensure the assembly of the channel firing on the clipping insert 50. FIG. 6 represents the firing channel of FIG. 4 mounted on the dashboard, during a deployment of the safety cushion, and in particular before the opening of the hatch 40, at the very beginning of deployment. As for the first implementation, the pressure exerted by the safety cushion forces a displacement of the wall 10 which pushes the rib 30, thus locking the clipping portion 25 in the holding position.
On comprendra que diverses modifications et/ou améliorations évidentes pour l'homme du métier peuvent être apportées aux différents modes de réalisation de l'invention décrits dans la présente description sans sortir du cadre de l'invention défini par les revendications annexées. En particulier, il est fait référence à un canal de tir pour une planche de bord, dans le cadre par exemple d'un coussin de sécurité pour protéger un passager du véhicule, mais on pourrait utiliser l'invention pour un coussin de sécurité implanté dans un volant ou dans un siège de véhicule.
It will be understood that various modifications and / or improvements obvious to those skilled in the art can be made to the various embodiments of the invention described in the present description without departing from the scope of the invention defined by the appended claims. In particular, reference is made to a firing channel for a dashboard, for example in the context of a safety cushion to protect a passenger from the vehicle, but the invention could be used for a safety cushion implanted in a vehicle. a steering wheel or in a vehicle seat.
Claims
1 . Canal de tir pour coussin de sécurité, agencé pour être clipsé sur une pièce d'habillage d'un habitacle de véhicule automobile, le coussin de sécurité étant agencé dans la pièce d'habillage avant un déploiement du coussin de sécurité lors d'un choc véhicule, le canal de tir comprenant : 1. Firing channel for a safety cushion, arranged to be clipped onto a trim part of a passenger compartment of a motor vehicle, the safety cushion being arranged in the covering part before deployment of the safety cushion during a shock vehicle, the firing channel comprising:
- au moins une paroi (10) formant un canal de guidage (15) pour guider le coussin de sécurité hors de la pièce d'habillage lors d'un déploiement dudit coussin de sécurité, - at least one wall (10) forming a guide channel (15) for guiding the safety cushion out of the dressing part during deployment of said safety cushion,
- au moins une portion de clipsage (20, 25) agencée pour prendre une position de clipsage sur la pièce d'habillage et assurer ainsi un maintien en place du canal de tir sur la pièce d'habillage, at least one clipping portion (20, 25) arranged to take a clipping position on the cladding piece and thus ensure a maintenance of the firing channel on the cladding piece,
caractérisé en ce que le canal de tir comprend au moins une nervure (30) de verrouillage solidaire de ladite au moins une paroi (10), agencée entre ladite au moins une paroi (10) et ladite au moins une portion de clipsage (20, 25) , et en ce que ladite au moins une paroi (10) est agencée pour se déformer lors du déploiement, de sorte à pousser ladite au moins une nervure (30) dans une position de verrouillage de ladite au moins portion de clipsage (20, 25) en position de maintien. characterized in that the firing channel comprises at least one locking rib (30) secured to said at least one wall (10), arranged between said at least one wall (10) and said at least one clipping portion (20, 25), and in that said at least one wall (10) is arranged to deform during deployment, so as to push said at least one rib (30) into a locking position of said at least one clipping portion (20). , 25) in the holding position.
2. Canal de tir selon l'une des revendications précédentes, dans lequel ladite au moins une portion de clipsage (20, 25) est une patte de clipsage agencée pour se déformer élastiquement lors d'une opération de montage du canal de tir sur la pièce d'habillage, et ensuite revenir dans la position de maintien lorsque le canal de tir est monté sur la pièce d'habillage. 2. firing channel according to one of the preceding claims, wherein said at least one clipping portion (20, 25) is a clipping lug arranged to deform elastically during a mounting operation of the firing channel on the piece of clothing, and then return to the holding position when the firing channel is mounted on the dressing part.
3. Canal de tir selon l'une des revendications précédentes, comprenant une trappe (40) agencée pour fermer le canal de guidage (15) avant déploiement du coussin de sécurité, la trappe (40) comprenant une portion fusible agencée pour se rompre sous un effort prédéterminé du sac, l'effort prédéterminé étant agencé pour déformer ladite au moins une paroi
(10) de sorte à pousser ladite au moins une nervure (30) en position de verrouillage. 3. firing channel according to one of the preceding claims, comprising a hatch (40) arranged to close the guide channel (15) before deployment of the safety cushion, the hatch (40) comprising a fuse portion arranged to break under a predetermined force of the bag, the predetermined force being arranged to deform said at least one wall (10) so as to urge said at least one rib (30) into a locking position.
4. Module de sécurité comprenant un canal de tir selon l'une des revendications précédentes. 4. Security module comprising a firing channel according to one of the preceding claims.
5. Planche de bord de véhicule formant une pièce d'habillage d'un habitacle de véhicule automobile et comprenant au moins un canal de tir selon l'une des revendications 1 à 3, et/ou un module de sécurité selon la revendication précédente. Vehicle dashboard forming a trim part of a passenger compartment of a motor vehicle and comprising at least one firing channel according to one of claims 1 to 3, and / or a security module according to the preceding claim.
6. Planche de bord de véhicule selon la revendication précédente, comprenant un insert de clipsage (50). 6. Vehicle dashboard according to the preceding claim, comprising a clipping insert (50).
7. Véhicule automobile comportant au moins un canal de tir selon l'une des revendications 1 à 3, et/ou un module de sécurité selon la revendication 4, et/ou une planche de bord selon l'une des revendications 5 ou 6.
7. Motor vehicle with at least one firing channel according to one of claims 1 to 3, and / or a security module according to claim 4, and / or a dashboard according to one of claims 5 or 6.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1460222A FR3027572A1 (en) | 2014-10-24 | 2014-10-24 | SHOOTING CHANNEL FOR SAFETY CUSHION |
| FR1460222 | 2014-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016062938A1 true WO2016062938A1 (en) | 2016-04-28 |
Family
ID=52130449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2015/052712 WO2016062938A1 (en) | 2014-10-24 | 2015-10-08 | Firing channel for air bag |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR3027572A1 (en) |
| WO (1) | WO2016062938A1 (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0739788A1 (en) * | 1995-04-26 | 1996-10-30 | Morton International, Inc. | Cover attachment for an air bag module |
| US5887891A (en) * | 1996-03-27 | 1999-03-30 | Denso Corporation | Air bag apparatus with movably mounted door |
| DE102007052570A1 (en) * | 2007-11-03 | 2009-05-07 | Volkswagen Ag | Airbag arrangement for use in head impact region in instrument panel of vehicle i.e. motor vehicle, has airbag covering comprising prefabricated wall in which both latching element and passage are formed |
| US7980586B2 (en) | 2008-11-12 | 2011-07-19 | Toyoda Gosei Co., Ltd. | Front passenger seat airbag apparatus |
-
2014
- 2014-10-24 FR FR1460222A patent/FR3027572A1/en active Pending
-
2015
- 2015-10-08 WO PCT/FR2015/052712 patent/WO2016062938A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0739788A1 (en) * | 1995-04-26 | 1996-10-30 | Morton International, Inc. | Cover attachment for an air bag module |
| US5887891A (en) * | 1996-03-27 | 1999-03-30 | Denso Corporation | Air bag apparatus with movably mounted door |
| DE102007052570A1 (en) * | 2007-11-03 | 2009-05-07 | Volkswagen Ag | Airbag arrangement for use in head impact region in instrument panel of vehicle i.e. motor vehicle, has airbag covering comprising prefabricated wall in which both latching element and passage are formed |
| US7980586B2 (en) | 2008-11-12 | 2011-07-19 | Toyoda Gosei Co., Ltd. | Front passenger seat airbag apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3027572A1 (en) | 2016-04-29 |
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