FR2945768A1 - DEPLOYABLE ANTI-REMOVE DEVICE WITH LOW DIMENSIONS FOR A CABRIOLET, AND ASSOCIATED INSTALLATION METHOD - Google Patents

Abstract

An anti-backflow device (D) is intended to be installed in a motor vehicle (V) of the cabriolet type. This device (D) comprises i) a base (EM) housing under restoring forces i) a primary winder which is secured to a primary anti-eddy net (FP), having an end (EFP2) coupled to two first fixing means (MF11, MF12) opposite, and at least one secondary winder which is secured to a secondary anti-backwater net (FS1, FS2), having an end (EFS12, EFS22) coupled to at least a second fixing means (MF21, MF22) capable of securing the secondary anti-backwater net (FS1, FS2) to the vehicle (V) behind front seats (SV), ii) two third fixing means (MF3) mounted on two opposite ends (EE1, EE2) of the base (EM) to secure it to the vehicle (V), and iii) two arms (B1, B2) each having a free end (EB11, EB12), provided with a fourth fixing means (MF41, MF42) suitable for cooperate with a first fastening means (MF21, MF22) for securing the end (EFP2) of the primary swirl (FP) to its arm (B1, B2), and an end (EB21, EB22) opposite to the free end (EB11, EB22) and rotatably mounted on the base (EM) in the vicinity of one its opposite ends (EE1, EE2) so as to be erected substantially perpendicular to the base (EM).

Description

The invention relates to anti-backflow devices that are installed behind certain front seats of motor vehicles of the cabriolet (or coupé-cabriolet) type. BACKGROUND OF THE INVENTION As is known to those skilled in the art, it is possible to install a device 1 o anti-swirl behind cabriolet front seats, and more precisely behind their headrests, to prevent the flow of air that is deflected by the windshield and which passes over the passenger compartment to fall back to the heads of the front passengers when the hood or removable roof has been removed or stored in a rear part. An anti-backflow device generally comprises, on the one hand, a primary tubular frame intended to be installed substantially vertically in a transverse position behind the front seats of the cabriolet, and on which is mounted (stretched) a net (or mat) primary swirl, and secondly, at least one other secondary tubular frame intended to be installed substantially horizontally in a transverse position behind the front seats of the cabriolet, above their upper part, and on which is mounted (stretched) a net (or tablecloth) anti-secondary swirl. The primary tubular frame generally has a width (in the transverse direction) greater than one meter and a height (in the vertical direction) of about 40 cm. Moreover, when the backwash device comprises only one secondary tubular frame, the latter has a transverse size similar to the width of the primary tubular frame. The primary tubular frame may be generally folded over the secondary tubular frame (s) in order to reduce the overall size of the backflow prevention device and thus allow its storage in the rear trunk of the cabriolet . It will be understood that only the size of the anti-backflow device in the vertical direction is reduced by this folding, and therefore that said anti-backflow device remains difficult to store inside the trunk, particularly because of the rigidity of the frames tubular and the tightness of the trunk when housing the removable roof and its deployment mechanism. In order to improve the situation, it has been proposed, particularly in patent document DE 4315139, to mount the opposite ends of the transverse part of each tubular frame in slides (or rails), defined in both parts. vertical or longitudinal of said tubular frame. This makes it possible to fold the three parts of each frame in a horizontal plane and thus reduce the space requirement in the vertical and longitudinal directions. However, the sliding of the opposite ends of the transverse portion of each tubular frame requires deploying the other two vertical or longitudinal portions substantially simultaneously. However, for such a deployment to be done without blocking, it is necessary to hold and guide at the same time the other two vertical or longitudinal parts while exerting traction on the transverse part, which proves very complicated to achieve for a single nobody, especially because of the transverse size of the anti-whirl device. The object of the invention is therefore to propose an anti-backflow device that can be deployed and folded relatively easily by a single person. It proposes more specifically for this purpose an anti-backflow device, intended to be installed removably in a motor vehicle type cabriolet, and comprising: - a base housing under restoring forces, on the one hand, a primary winder 25 which is secured to a primary anti-backwater net which has an end coupled to two opposed first fixing means, and secondly, at least one secondary winder which is secured to a secondary anti-backwater net which has an end coupled to at least a second securing means capable of securing the secondary anti-backflow net 30 to the vehicle behind the front seats, - two third attachment means mounted on two opposite ends of the base in order to secure it to the vehicle, and - two arms each comprising on the one hand, a free end, provided with a fourth own fastening means to cooperate with a first fastening means for securing the e extremity of the primary anti-backwater net to its arm, and secondly, an end opposite to the free end and rotatably mounted on the base in the vicinity of one of its opposite ends so as to be erected substantially perpendicularly relative to the base. The anti-backflow device according to the invention may comprise other characteristics that can be taken separately or in combination, and in particular: its base can accommodate two secondary winders to which two secondary anti-backwater nets are respectively joined; - Both arms can be adapted to be folded against the base once the primary anti-whirl net wound on its primary winder inside the base; each third fastening means can be part of an adaptation mechanism mounted in axial translation and under a restoring force on one end of the base, and arranged when it is under pressure from a user to translate axially. towards this end in order to reduce the axial size of the base; each second fixing means may be defined on a flange which is at least semi-rigid and secured to the end of the secondary anti-backflow net; - Each flange may include a gripping means adapted to allow a user to unroll the corresponding secondary anti-backwater net of the secondary winder, towards a rear portion of the vehicle; each second fastening means can be arranged in the form of a clean hook to anchor on a bar which is installed in the vehicle behind its front seats; each third fastening means may be a form-fitting means capable of cooperating with a correspondingly shaped cooperation means installed in the vehicle behind its front seats; each form-cooperating means may be a peg intended to be housed in an aperture of corresponding shape; - The end of the primary anti-backwater net can be secured to a rod which is at least semi-rigid and provided with two opposite ends on which are respectively defined the first fixing means; each first fixing means may be a form-fitting means capable of cooperating with a correspondingly shaped cooperation means constituting a fourth fixing means; - Each first fixing means may be a pin to be housed in a correspondingly shaped opening constituting a fourth fixing means. The invention also proposes a method for installing (and deploying) in a cabriolet type motor vehicle a antiremous device of the type of the one presented above, and comprising the following steps: - securing the base to the vehicle, in one suitable place for this purpose, situated behind its front seats, by means of its third fastening means, - to raise the arms substantially perpendicular to the base, - to unwind the primary anti-damming net of the primary winder, then to join together the first fastening means located at the end of the primary anti-backwater net to the fourth fixing means located on the free ends of the arms, - unrolling each secondary anti-backwater net of its secondary winder, and securing each second means of fastening coupled to the end of the secondary backwater net to a corresponding fixing means located in a suitable location for this purpose behind the front seats of the vehicle. Furthermore, before securing the base behind the front seats of the vehicle, it can first dissociate the anti-backwash device of a storage area of the vehicle (such as its trunk).

Other features and advantages of the invention will appear on examining the detailed description below, and the accompanying drawings, in which: - Figure 1 illustrates schematically, in a view from above, a convertible-coupe equipped with An embodiment of anti-backflow device according to the invention not deployed, - Figure 2 schematically illustrates, in a view from above, the coupe-cabriolet of Figure 1 with its anti-backflow device placed in a first intermediate state during a deployment phase, - Figure 3 schematically illustrates, in a view from above, the convertible cut of Figure 1 with its anti-backflow device placed in a second intermediate state during a deployment phase, - Figure 4 schematically illustrates, in a perspective view, the convertible-coupe of Figure 1 with its anti-whirl device fully deployed. The attached drawings may not only serve to complete the invention, but also contribute to its definition, if any.

The invention aims to provide an anti-backflow device (D) for use in a motor vehicle (V) type cabriolet (or cabriolet-coupe). In the following, we consider, by way of non-limiting example, that the motor vehicle (V) is a cabriolet-coupe.

FIGS. 1 to 4 show schematically an exemplary embodiment of anti-backflow device D according to the invention in different states. More specifically, in Figure 1 the device D is secured to the cabriolet V on its side packings G which are placed on its structure behind its front seats SV, but in a non-deployed state, in Figure 2 the device D is always secured to the V convertible but in a first intermediate state during its deployment phase, in Figure 3 the device D is still secured to the V convertible but in a second intermediate state during its deployment phase, and in Figure 4 the device D is still secured to the V convertible but in a fully deployed state.

In the figures, the direction X materializes the longitudinal direction of the cabriolet V, which is substantially parallel to the right and left side doors, the direction Y materializes the transverse direction of the cabriolet V, which is substantially perpendicular to the direction X and the side doors, and the direction Z materializes the vertical direction. As partially illustrated, a device D according to the invention comprises a base EM, two third attachment means MF3 and two arms Bj.The index j refers to one of the two right and left lateral sides, it can therefore take the value 1 (here on the left) or the value 2 (here on the right). The EM base is a housing (or receptacle) inside which are housed, under restoring forces (for example induced by return springs) and in the transverse direction Y, a primary winder and at least one secondary winder (not shown) This base EM comprises two opposite ends EEj on which are respectively mounted the two third attachment means MF3. The latter (MF3) are responsible for securing the EM base V convertible, here on its side packings (or longitudinal) G (placed on its structure behind its front seats SV). In the nonlimiting exemplary embodiment illustrated in FIGS. 1 to 4, the third attachment means MF3 form part of two adaptation mechanisms MA which are respectively mounted on the two opposite ends EEj of the EM base, with axial translation. (i.e. in the transverse direction Y) and under a restoring force. But, this is not mandatory. Indeed, the two third attachment means MF3 could be directly and respectively defined on the two opposite ends EEj of the base EM. Each third fixing means MF3 may for example be arranged in the form of a shape-cooperation means adapted to cooperate with a correspondingly shaped cooperation means installed in the convertible V, here on its side packings G (placed behind its seats before SV). For example, and not limitation, each MF3 shaped cooperation means can be arranged in the form of a post (or projection) intended to be housed, by insertion in the vertical direction Z, into a correspondingly shaped opening. defined in the V convertible. In a variant, each form-fitting means MF3 can be arranged in the form of an opening (or an open housing) suitable for receiving, by introduction in the vertical direction Z, a tenon ( or a protrusion) of corresponding shape defined on the cabriolet V. Each adaptation mechanism MA is responsible for facilitating the fastening of the base EM to the cabriolet V. Indeed, when an adaptation mechanism MA undergoes axial pressure ( following Y) of a user, it translates axially towards the end EEj of the base EM, on which it is mounted, in order to reduce the axial size (transverse Y) of the base EM. It will be understood that this variation in axial size facilitates the shape cooperation between the third attachment means MF3 and the corresponding fixing means defined on the cabriolet V. For this purpose, each adaptation mechanism MA can for example be presented under the form of a mechanism of the type called pump with spring. However, such an adaptation mechanism MA could be dispensed with, for example by sliding each third fastening means MF3 (for example a tenon) into a corresponding aperture or outlet opening defined in the vertical direction Z in the packing G A primary anti-eddy net FP is secured by a first end to the primary winder in order to be able to be wound inside the EM base or rolled out of the latter (EM) via a first slot. cross-section (not shown) defined on an upper face (facing upwards). This primary anti-swirl net FP also has a second end EFP2, opposite to the first and coupled to two first MF1j attachment means opposite. As illustrated in a non-limiting manner in FIG. 4, the second end EFP2 of the primary anti-eddy net FP can be secured to a rod TS which extends in the transverse direction Y, is at least semi-rigid and is provided with two opposite ends on which are respectively defined the first fixing means MF1j. The latter (MF1j) are for example each in the form of a form-cooperation means adapted to cooperate with a corresponding form of cooperation means constituting a fourth attachment means MF4j of an arm Bj (on which we will return more far). The device D illustrated in FIGS. 2 to 4 comprises two secondary winders mounted one after the other in the transverse direction Y. A secondary anti-backflow net FSj is secured by a first end to each secondary winder in order to can be wound inside the EM base or rolled out of the latter (EM) via a second or third transverse slot (not shown) defined on a rear face (facing the rear of the cabriolet) . Each secondary anti-backflow thread FSj also has a second end EFSj2, opposite to the first end and coupled to at least one second fixing means MF2j. Each second attachment means MF2j is arranged to participate in securing its secondary anti-backwash FSj V convertible behind its front seats SV. For example, each second fixing means MF2j is arranged in the form of a hook which is adapted to be anchored on (or coupled to) a bar (or an axis or a ring) which is installed in the cabriolet. V behind its front seats SV, and more precisely here behind its SR rear seats (in the transverse lining or on the structure). In a variant, each second fastening means MF2j could be arranged in the form of a velcro-type band (or the like) capable of cooperating with a corresponding band secured to the V-cab.

In the nonlimiting exemplary embodiment illustrated in FIGS. 2 to 4, the second end EFSj2 of each secondary anti-backflow thread FSj is coupled to two second attachment means MF2j. But, it could be coupled to only one second MF2j attachment means. Moreover, in the nonlimiting exemplary embodiment illustrated in FIGS. 2 to 4, the second end EFSj2 of each secondary anti-backflow net FSj is secured to an at least semi-rigid FLj flange on which at least a second end is defined. fixing means MF2j. The coupling between a secondary anti-swirl net FSj and its second attachment means (s) MF2j is therefore via the flange FLj corresponding. But, this is not mandatory. Indeed, the device D could be devoid of flange FLj, and in this case each second fixing means MF2j is secured to the second end EFSj2 of one of the secondary anti-backwater nets FSj. In the non-limiting embodiment illustrated in FIGS. 2 to 4, each flange FLj comprises a gripping means MPj capable of allowing a user to unwind the corresponding secondary winder, in the direction of a rear part PR of the cabriolet. V, the secondary anti-swirl net FSj to which it is secured. Each gripping means MPj may for example be arranged in the form of an opening (as illustrated) or a handle or a ring (possibly flexible). Each of the two arms Bj comprises, on the one hand, a first free end EB1j which is provided with a fourth fixing means MF4j, and secondly, a second end EB2j opposite its first free end EB1j and rotatably mounted on the base EM in the vicinity of one of its two opposite ends EEj so as to be erected substantially perpendicular to the base EM by action of a user. It will be noted that the second end EB2j of each arm Bj may be equipped with an articulation secured to the upper face of the base EM and intended to allow rotation of said arm Bj with respect to said upper face. But in a variant it (EB2j) could be equipped with a hinge provided to provide in addition a hard point for maintaining its arm Bj substantially vertically once deployed but before pulling the primary anti-swirl net FP.

Each fourth fastening means MF4j is arranged to cooperate with a first fastening means MF1j of the primary thrust net FP to secure the second end EFP2 of the primary antiremous net FP to its arm B. Each arm Bj thus constitutes a mast anchor for the FP primary whirl net.

For example, each first attachment means MF1j may be arranged as a shape-cooperating means adapted to cooperate with a correspondingly shaped cooperation means constituting a fourth fixing means MF4j. For example, and not limited to, each first form-cooperation means MF1j may be arranged in the form of a post (or protrusion) intended to be housed, by insertion in the vertical direction Z, into an opening MF4j of corresponding shape defined at the first end EB1j of the corresponding arm Bj. In a variant, each first form-cooperation means MF1j can be arranged in the form of an opening (or an open housing) adapted to receive, by introduction in the vertical direction Z, a post (or projection) MF4j of corresponding shape defined at the first end EB1j of the corresponding arm Bj.The installation and deployment of a device D in a V convertible can be done by means of an installation method according to the invention. This process comprises the four steps (i) to (iv) described below. In a step (i) (a user) secures the EM base V convertible, in a suitable place for this purpose, located behind its front seats SV (here on the side packings G). To do this, the two third fixing means MF3, which are mounted on the ends EEj of the base EM, are made to cooperate with two corresponding fixing means, which are here defined on the side packings G. In the presence of third means with form cooperation MF3, this cooperation can for example be done by moving the base EM in the vertical direction Z (from top to bottom), after possibly translating axially at least one of the adaptation mechanisms MA in the direction of the corresponding end EEj of said base EM.

In a step (ii) (a user) raises the two arms Bj substantially perpendicular to the base EM. It will be noted that the upper face of the base EM may possibly comprise two hard points which make it possible to immobilize partially and temporarily the two arms Bj in their erected position. Each hard point can for example be in the form of a boss that can be deformed, and thus allow the continuation of the drive in rotation beyond it and the immobilization of the arm Bj, when one exercises a sufficient force on the latter (Bj). Such a boss may for example be defined on one side and be in the form of a depression when the arm Bj is in a vertical position and a recess (or hollow) when the arm Bj is in the folded position to facilitate the handling towards the storage space (for example the safe). In a step (iii) (a user) unwinds the primary anti-swirl net FP of the primary winder by pulling up its end EFP2 or its possible rod TS. Note that the latter (TS) may optionally comprise for this purpose a gripping tongue or a ring intended to facilitate its traction (and thus the unwinding of the primary anti-eddy net FP.) This step (iii) continues with the joining of the first fixing means MF1j, which are located opposite the level of the second end EFP2 of the primary anti-eddy net FP, to the fourth fixing means MF4j, which are located on the free ends EB1j of the arms Bj. means MF1j form cooperation, this cooperation can for example be done by moving the second end EFP2 in the vertical direction Z (from top to bottom) .In a step (iv) we (a user) unrolls each net anti-eddy secondary FSj its secondary winder, pulling towards the rear of the convertible V its second end EFSj2 or its possible flange FLj, for example thanks to its gripping means MP. this step (iv) is continued by securing each second fastening means MF2j coupled to the second end EFSj2 of a secondary antiremous net FSj to a corresponding fastening means situated at a suitable place for this purpose behind the front seats SV of the V convertible (here on the rear transverse lining (or on the rear structure). It will be noted that when the device D is installed by a single person, the latter unrolls a first secondary anti-whirl net FSj, for example FS1, then it secures the latter (FS1) to the rear part PR of the convertible V, then the no one unrolls the second secondary anti-backflow net FSj ', for example FS2, then it secures the latter (FS2) to the rear part PR of the cabriolet V. It is important to note that the four stages of the process can be done according to a sequence different from that described above. Thus, step (iv) can be performed before step (ii). Note that due to the small size of the device D not deployed in the longitudinal directions X and vertical Z, it can be easily housed in a space (or a zone) of storage of the convertible V, such as in his trunk. The latter may for example include a subspace dedicated to this purpose. In this case, the installation method according to the invention comprises a preliminary step that is performed before step (i) and which consists in separating the device D from its storage space. The folding of the deployed device D (and its possible storage) can be done by carrying out the steps described above in an opposite order and by proceeding to the detachments instead of the fastenings, and folds instead of the rectifications. .

The invention is particularly advantageous because it allows a single person to install and uninstall the device D alone. In addition, it can be implemented by means of particularly simple steps and does not require prior training. The invention is not limited to the embodiments of anti-backflow device and installation method described above, only by way of example, but it encompasses all variants that may be considered by those skilled in the art in the scope of the claims below.

Claims (14)

REVENDICATIONS1. Anti-backflow device (D) for a motor vehicle (V) of the cabriolet type, characterized in that it comprises i) a base (EM) housing under restoring forces a primary winder which is secured to a primary antiremous net (FP) ), having one end (EFP2) coupled to two opposite first attachment means (MF1j), and at least one secondary winder which is secured to a secondary backwater net (FSj), having an end (EFSj2) coupled to at least one second fixing means (MF2j) adapted to secure said secondary anti-backwater net (FSj) to the vehicle (V) behind front seats (SV), ii) two third fixing means (MF3) mounted on two opposite ends (EEj) said base (EM) to secure it to the vehicle (V), and iii) two arms (Bj) each having a free end (EB1j), provided with a fourth fixing means (MF4j) adapted to cooperate with a first fixing means (MF1j) to secure the end (EFP2) of the primary backwater net (FP) to its arm (Bj), and one end (EB2j) opposite the free end (EB1j) and rotatably mounted on said base (EM) in the vicinity of one of its opposite ends (EEj) so as to be erected substantially perpendicular to said base (EM). 2. Device according to claim 1, characterized in that said base (EM) houses two secondary winders which are respectively secured two secondary anti-backwaters (FSj). 3. Device according to one of claims 1 and 2, characterized in that said arms (Bj) are adapted to be folded against said base (EM) once said primary anti-whirl net (FP) wound on said primary winder to the inside of said base (EM). 4. Device according to one of claims 1 to 3, characterized in that 3o each third fastening means (MF3) is part of a matching mechanism (MA) mounted in axial translation and under a restoring force on a end (EEj) of said base (EM) and arranged when it is pressed by a user to translate axially towards said end (EEj) to reduce the axial size of the base (EM). 5. Device according to one of claims 1 to 4, characterized in that each second fixing means (MF2j) is defined on a flange (FLj) at least semi-rigid and secured to the end (EFSj2) of said net anti -remous secondary (FSj). 6. Device according to claim 5, characterized in that each flange (FLj) comprises a gripping means (MPj) adapted to allow a user to unwind said secondary anti-backwater net (FSj) of said corresponding secondary winder, in the direction of a rear part (PR) of the vehicle (V). 7. Device according to one of claims 1 to 6, characterized in that each second fixing means (MF2j) is arranged in the form of a clean hook to be anchored on an axis installed in said vehicle (V) behind his front seats (SV). 8. Device according to one of claims 1 to 7, characterized in that each third attachment means (MF3) is a form-cooperation means adapted to cooperate with a corresponding form of cooperation means installed in said vehicle (V) behind his front seats (SV). 9. Device according to claim 8, characterized in that each form-fitting means (MF3) is a post intended to be housed in a correspondingly shaped opening. 10. Device according to one of claims 1 to 9, characterized in that said end (EFP2) of the primary anti-eddy net (FP) is secured to a rod (TS) at least semi-rigid provided with two opposite ends on which are respectively defined said first fixing means (MF1j). 11. Device according to one of claims 1 to 10, characterized in that each first fixing means (MF1j) is a form-cooperation means adapted to cooperate with a corresponding form of cooperation means constituting a fourth fixing means ( MF4j). 12. Device according to claim 11, characterized in that each first fixing means (MF1j) is a post intended to be housed in a correspondingly shaped opening constituting a fourth means of fixation (MF4j). 13. A method of installation in a motor vehicle (V) of the cabriolet type of an anti-backflow device (D) according to one of the preceding claims, characterized in that it comprises the following steps: - secure the base (EM) to said vehicle (V), in a suitable place for this purpose, located behind its front seats (SV), by means of its third attachment means (MF3), - to raise the arms (Bj) substantially perpendicularly with respect to said base (EM), - unwind the primary backwater net (FP) of the primary winder, then secure the first fastening means (MF1j) located at the end (EFP2) of the primary backwater net ( FP) to the fourth fixing means (MF4j) located on the free ends (EB1j) of the arms (Bj), - unrolling each secondary anti-backwater net (FSj) of its secondary winder, and securing each second attachment means (MF2j) coupled to the end (EFSj2) of the secondary nudge net ( FSj) to a corresponding fixing means located in a suitable place for this purpose behind the front seats (SV) of the vehicle (V). 14. The method of claim 13, characterized in that before securing said base (EM) behind the front seats (SV) of the vehicle (V), said device (D) is detached from a storage area of said vehicle ( V).