FR2894010A1 - Air supply pipe and aeraulic unit connecting device, has window arranged across lateral walls of intermediate pipe, where lateral walls are placed opposite to inlet pipe or aeraulic unit to which sealing unit is assigned - Google Patents

Abstract

The device has an air supply pipe (1) mounted on a carrier structure e.g. floor, of a vehicle, for supplying air from installation of ventilation, heating and air conditioning of the vehicle. An aeraulic unit (2) is movably joined with the seat, where the seat is displaced in translation with respect to an air supply pipe. An intermediate pipe (3) is interposed between the air supply pipe and the aeraulic unit, where a window (4) is arranged across lateral walls of the pipe (3). The lateral walls are placed opposite to the inlet pipe or the unit (2) to which a sealing unit (5) is assigned.

Description

Connecting device between an air supply duct coming from a

  installation of ventilation, heating and / or air conditioning, and an air flow member carried by a sliding seat.

Technical Field of the Invention

  The invention is in the field of arrangements for mobile mounted seats, including vehicle, and more particularly of the connection of such seats with a supply duct, for example from a heating installation, ventilation and / or air conditioning. It relates to a junction device between such a supply duct and aeraulic member carried by such a seat.

State of the art

  It is known to operate a heating, ventilation and / or air conditioning system for ventilation of a seat, including a vehicle. Such an installation is mounted on a fixed element of the vehicle, being for example mainly dedicated to the ventilation of the passenger compartment or specifically to the ventilation of at least one seat. Incidentally, the seat is likely to be equipped with a secondary installation of heating, ventilation and / or air conditioning. The main installation is provided with a fixed duct for supplying air to the seat, the latter being provided with a ventilation device, such as an air duct or the like for conveying air into the room. from the installation to the interior of the seat.

  There is the problem of the ventilation junction between the supply duct mounted fixed on the vehicle, and the aeraulic member carried by the seat. It is desirable that such a junction is simple and has essential sealing characteristics. A first difficulty to overcome lies in the organization of a junction device that is simple in structure and provides a reliable and durable seal. This problem is even more difficult to solve that the seat is usually mounted to move on the vehicle, at least slidingly in translation on a stroke of the order of 300 mm for example. Such seats can also be mounted tilting. According to a known solution, the supply duct and the aeraulic member are connected to one another by a flexible intermediate duct to be deformable during the translation of the seat, such as a bellows duct or the like. In particular, reference may be made to document FR2843916 (VALEO CLIMATISATION) which discloses such a junction device.

  The implementation of a flexible conduit has several disadvantages. Indeed, the flexible conduit is likely to constitute an obstacle for the passengers of the vehicle which can unintentionally damage it. This deterioration is even more likely that the flexible conduit is fragile and has a substantial length. Moreover, such a flexible conduit is likely to get stuck during the movement of the seat, which can further cause its degradation.

  In general, the installation of a deformable conduit between the supply duct and the aeraulic member induces visual discomfort for the passengers of the vehicle. Moreover, there is the problem of the durability of such a conduit, the deformability of which is obtained to the detriment of its overall robustness. In addition, the junction obtained must be reliable and durable, especially avoiding losses and air leaks. In addition, there are difficulties related to the maintenance of the aeraulic junction implemented, with a corollary a search for obtaining this junction at low cost, capable of allowing the rapid and inexpensive interchangeability of the means implemented without jeopardize the competitiveness of the connecting device used. Finally, the integration on the vehicle of the junction between the supply duct and the aeraulic device must be obtained with the smallest possible footprint, despite the faculty sought to allow the mobility of the seat, without the risk of congestion. the circulation space inside the passenger compartment likely to disturb the passengers.

Object of the invention

  The object of the present invention is to propose a junction device between a fixed mounted air supply duct, in particular coming from a heating, ventilation and / or air-conditioning system of a vehicle, and a seat mounted mobile on the vehicle at least in translation. It is more particularly the object of the present invention to provide a connection device which is simple to produce and install, which offers a perfect seal, which is of limited size, which is reliable, durable and robust, which is a low cost of obtaining and maintenance, and whose installation on the vehicle is fast and easy, without inducing visual discomfort and / or traffic in the vehicle for passengers.

  The device of the present invention is a junction device between at least one duct and a ventilation device. The duct is mounted on a supporting structure, such as the floor of a vehicle, for the supply of air from a particular heating, ventilation and / or air conditioning equipment equipping the vehicle. The air flow member is carried by a seat mounted on the supporting structure, at least in translation, between two extreme positions of use. This junction device more particularly implements at least one intermediate conduit equipped with means of communication aeraulic respectively with the supply conduit and with the aeraulic device.

  According to the present invention, such a connecting device is mainly recognizable in that said intermediate duct is a rigid duct equipped with fixing means to any one of the supporting structure and the seat.

  According to a first variant embodiment, the intermediate duct is provided with means of attachment to the supporting structure, such as at least one platinum or the like equipped with fastening members, of the type by screwing, crimping, interlocking of members cooperating, or by clipping. According to a second variant embodiment, the intermediate duct is provided with means of integration with the seat, consisting for example of means for fixing the intermediate duct to the seat frame, preferably being enveloped by the lining of the latter. In the case where the seat is equipped with a secondary installation for heating, ventilation and / or air conditioning, the integration of the intermediate duct to the seat can be used to make this intermediate duct participating in a wall of the installation, or to exploit the presence of such a secondary installation for the integration of the intermediate conduit to the seat.

  According to a preferred embodiment of the intermediate duct, the latter is arranged in an elongate box, preferably polygonal section conformation comprising concurrent walls.

  The aeraulic communication communication means more particularly comprise a first air-to-air communication means between the intermediate duct and the supply duct, and a second air-to-air communication means between the intermediate duct and the air duct. Any one of the first means and the second means is advantageously movable in translation along a window that includes the intermediate conduit. The window is preferably equipped with a shutter member that includes the intermediate conduit. This closure member is advantageously mounted mobile in translation on the intermediate conduit, and is provided with any one of the first and second means.

  These arrangements are such that when moving the seat in translation, the supply duct or alternatively the aeraulic member joined to the shutter member circulates along the intermediate duct, and more particularly along the window that this last comprises, to allow the displacement of the seat without aeraulic rupture between the supply duct and the aeraulic member. It will be understood that the mobility in translation of the closure member on the intermediate duct is performed at least on a stroke of the same order as that of the seat.

  The window is more particularly formed through any of the side walls of the intermediate duct. It will be understood that this side wall is preferably that intended to be placed facing the supply duct or of the air duct member to which the shutter member is assigned, to reduce the size of the device while avoiding the use of an additional conduit.

  The closure member is preferably slidably mounted along the wall of the intermediate duct comprising the window, by means of lateral guide means.

  According to a first embodiment of the closure member, the latter is organized in a strip, belt or the like, flowing along the window extending towards the inside of the intermediate duct. The length of such a strip is in particular at least of the order of the length of the window increased by the stroke of the seat on the supporting structure.

  According to a second embodiment of the closure member, the latter is organized in a deformable sheet or the like, which extends along the window. For example, this sheet has a plurality of bellows folds or the like. The length of the sheet is in particular at least of the same order as the length of the window increased by the stroke of the seat on the supporting structure, and occupies the space defined by the window, being folded on itself at least partially and by being developed respectively on either side of the supply duct and / or the aeraulic member in relation to the closure member. Relative movement between the supply duct and the air flow member is allowed without interruption of the air flow from the development of the sheet during the displacement of the seat.

  Means for guiding the closure member advantageously consist of lateral guides provided at least at the edge of the window. The corresponding edges of the closure member are notably housed inside these slides.

  The slides are likely to extend beyond the window towards the inside of the intermediate duct, to maintain the guiding of the shutter member in the intermediate duct, in particular beyond the window. Such an arrangement is useful in the case where the shutter member forms a loop inside the intermediate conduit.

  Preferably, the slides are formed in the internal volume of the intermediate conduit. More particularly, the slides are formed between a wall of the intermediate duct and an inner guiding wing respectively of an edge of the closure member.

  The device preferably comprises means for plating the shutter member at the edge of the window. These provisions are intended to maintain a seal between the closure member and the intermediate duct, while ensuring the mobility of the shutter member along the window. It will be understood in this that the plating means constitute sealing means between the closure member and the intermediate duct. These plating means are in particular of the elastic deformation type and are interposed between the closure member and the intermediate duct.

  The plating means are for example constituted by at least one flexible body arranged at least along each of the lateral edges of the closure member. Note that the flexible body is indifferently formed of a continuous body or a discontinuous body. The flexible body bears more particularly against the inner guiding wings, to push the lateral edges of the closure member against the corresponding wall of the intermediate duct.

  The flexible body is for example integrally molded to the closure member, with which it forms a unitary piece. The flexible body is, for example, formed of a plurality of successive, individually deformable reliefs. It will be understood that such reliefs constitute the plating means. These reliefs are for example generally shaped curved lamellae taking a tangent support against the corresponding inner guiding wing. According to another embodiment, the flexible body is formed of a coating, such as a pad of textile material, plastic material or the like, arranged at least along the lateral edges of the closure member. The integration of the flexible body to the closure member can be achieved by gluing, vulcanization or overmolding. In the case, for example, where the closure member is of small thickness, such as formed of a textile strip or the like, the flexible body may be formed of buffers or a similar coating reported at the lateral edge of the the closure member, by bonding or the like in particular.

  According to another variant embodiment, the elastically deformable plating means are provided on the intermediate duct, in particular inside the guiding rails of the closure member.

  Preferably, the shutter member comprises an opening for placing in aeraulic communication between the internal volume of the intermediate duct and any one of the supply duct and the aeraulic member. This opening is in particular equipped with a first nozzle or the like jointly engaged on the closure member and on any one of the supply conduit and the air flow member.

  According to an alternative embodiment, the closure member and the first endpiece form a unitary piece, being for example jointly formed by molding or by being assembled to one another by gluing or the like. According to another embodiment, the first endpiece is engaged on the closure member by means of fixing means, such as the type by pinching the closure member between a shoulder of the endpiece and a crimping type, crimping type, clipping type, screw type, or the like

  Preferably, the device further comprises means for guiding the first nozzle along the intermediate conduit. These guide means advantageously comprise guide rails of the shutter member.

  According to a preferred embodiment, the intermediate duct has an opening for placing in aeraulic communication between the internal volume of the intermediate duct and any one of the first and second means. This opening is in particular provided with a second nozzle or the like in relation to any one of the supply duct and the air flow member, which it receives by interlocking, for example.

  According to an advantageous embodiment, the second endpiece forms with the intermediate conduit a unitary piece. According to another embodiment, the second endpiece is secured to the intermediate duct by fastening means, such as crimping type, clipping type, welding type, ultrasound or the like in particular, screw type, of the type by gluing or the like.

  According to alternative embodiments, the first means is mounted movably along the intermediate duct, the second means being fixed relative to the latter, or the first means is fixed on the intermediate duct, the second means being mounted movably on this last. It follows that the first means is capable of associating the window provided with the shutter member on which the first nozzle is attached, while the second means associates the opening and the second nozzle, and that inversely according to a alternative form of embodiment the first means associates the opening and the second end, while the second means associates the window provided with the closure member on which is fixed the first endpiece.

  The intermediate duct is preferably formed from at least two shells assembled to one another, by gluing, by interlocking, by clipping, by crimping, by ultrasonic welding or similar welding mode, via cooperating fasteners, or the like. More particularly, the intermediate duct is constituted by lateral shells assembled to one another by means of cooperating assembly members. The cooperating assembly members comprise for example at least one set of members. The sets of members extend for example transversely in the internal volume of the intermediate duct. According to an alternative embodiment, these assembly members cooperate by interlocking. According to another variant, these assembly members cooperate from a reception through a fastening element, such as a screw, a clip or the like. According to another variant, the organs} extend at least partially around the outlet of the shells for their joining to each other, interlocking in particular.

  The robustness and the rigid and indeformable character of the intermediate duct allow its operation to participate in a secondary installation of heating, ventilation and / or air conditioning equipping the vehicle. Depending on whether the intermediate duct is fixed on the supporting structure or on the seat, this installation is likely to be respectively an installation provided under the seat or a facility integrated with the seat. More specifically, the intermediate duct is part of a wall of a heating, ventilation and / or air conditioning system. According to an exemplary embodiment, the intermediate duct forms a wall of an air recirculation chamber of a secondary heating, ventilation and / or air conditioning system integrated into the seat.

  The aeraulic member carried by the seat may be constituted by any member for receiving the air from the connecting device for its inward conveyance of the seat. Such a ventilation device is for example constituted by a conduit or the like, an intermediate chamber, or even a space participating air distribution means inside the seat, or a secondary heating system , ventilation and / or air-conditioning integrated at headquarters. The supply duct is in particular a duct emerging from the floor and or circulating on it. Such a supply duct is in particular in connection with a main installation of heating, ventilation and / or air conditioning equipping the vehicle. Incidentally, a secondary heating, ventilation and / or air conditioning system may be interposed between the intermediate duct and the supply duct without departing from the scope defined by the invention.

Description of the figures.

  The present invention will be better understood on reading the description which will be made of preferred embodiments, in connection with the figures of the attached plates, in which: Fig.1 to fig.3 are illustrations of a device junction according to a first embodiment, respectively seen in longitudinal section along AA, seen from above and seen in cross section along BB. The fig.4 to fig.6 are illustrations of a connecting device according to a second embodiment, respectively seen in longitudinal section along CC, seen from above and seen in cross section DD. Figs. 7 and 8 are longitudinal sectional illustrations of an exemplary embodiment of an intermediate conduit participating in a joining device of the invention. Fig.9 is a detail illustration in longitudinal section of an embodiment of a shutter member participating a junction device of the invention. Fig.10 is a cross-sectional view of a connecting device of the invention comprising an intermediate conduit of the type shown in Fig.7 and Fig.8, housing a closure member of the type shown in fig. 9.

  In FIGS. 1 to 6, a junction device is provided for placing in air communication an air supply duct (1) and a ventilation unit (2), which consists of a duct on the exemplary embodiments illustrated.

  The junction device is particularly applied to the supply of air to the seat of a vehicle, from a main installation of ventilation, heating and / or air conditioning. More particularly, the air supply duct (1) is mounted on a supporting structure, including the floor of the vehicle. The seat is mounted movably in translation on the support structure, along lateral guide rails in particular, and is a carrier of the air flow member (2). Note that the seat is likely to include other specific mobility arrangements, such as tilting and / or pivoting without departing from the scope of the invention. Note also that the aeraulic member (2) is likely to consist of a conduit or the like, an air distribution chamber to the interior of the seat or a participating space of a secondary installation heating, ventilation and / or air conditioning integrated to the seat or supported by the supporting structure.

  The air flow member (2) is movable together with the seat. The latter moves in translation relative to the supply duct (1). It is proposed to interpose an intermediate duct (3) between the aeraulic member (2) and the supply duct (1). To reduce the size of such an intermediate duct (3), and avoid that it is an inconvenience for passengers, it consists of a rigid box, preferably polygonal section conformation, parallelepiped in particular. The rigid nature of the intermediate duct (3) confers on it in particular an indeformable character whatever the seat positions between its extreme positions and in particular regardless of the relative position between the supply duct (1) and the ventilation element (2). ). It follows from these provisions that the intermediate duct (3) has a footprint of a length of the same order as the stroke of the seat, simplicity of structure favoring its realization at lower cost, and optimized sealing characteristics. Note that the size of the intermediate duct (3), and overall of the junction device, remains the same regardless of the seat position.

  The intermediate duct (3) is particularly intended to be fixed to the supporting structure, or to be integrated into the seat. It follows that the intermediate duct (3) is preserved from stresses likely to deteriorate, not only because of its location under or in the seat, but also thanks to the faculty offered to organize it in a rigid box, robustness ideal and a longitudinal dimension which is advantageously reduced to that of the seat stroke along the carrier structure. In addition, the organization of the intermediate conduit (3) mainly rigid box allows its obtaining at competitive costs, and facilitates maintenance operations.

  To allow relative mobility between the supply duct (1) and the air flow member (2), the intermediate duct (3) comprises a window (4) formed through and along one of its longitudinal walls.

  The window (4) is provided with a shutter member (5) movable in translation, on a travel of the order of that of the seat, such as 300 mm for example. In the exemplary embodiments illustrated, the closure member (5) consists of a band, a belt or the like circulating along the window (4). The shutter member (5) is at least an overall length of the order of that of the window (4), increased by a dimension of the order of the seat stroke. In the preferred exemplary embodiments illustrated, the shutter member (5) is closed in a loop on itself. According to an alternative embodiment not illustrated, the closure member (5) is capable of being formed of a deformable sheet occupying the space defined by the window (4), being folded on itself to develop and / or fold in a course corresponding to that of the seat between its extreme positions of displacement in translation. Note however that it is preferred to maintain an extension of the closure member (5) in a plane corresponding generally to that of the window (4), regardless of the position of the seat, to avoid an increase in congestion of the junction device, to maintain this device desired robustness qualities, and to facilitate the installation of the connecting device under the seat or its integration with the latter.

  The closure member (5) is guided in translation along the intermediate duct (3), by its lateral edges. For this purpose, the intermediate duct (3) comprises guiding means (6) of the closure member (5), which consist of slides accommodating the lateral edges of the closure member (5). These slides are in particular formed of lateral internal wings (7) arranged near and facing the corresponding walls of the intermediate duct (3). In the illustrated case where the closure member (5) is closed in a loop on itself, the guide means (6) preferably extend along almost the entire periphery of the corresponding walls of the intermediate duct ( 3).

  In FIGS. 1 to 3, the closure member (5) has an opening (8) bordered by a first nozzle (9) in relation to the air flow member (2), to allow the passage of air through it. This first endpiece (9) is engaged on the closure member (5), either by molding, by welding or by gluing so as to form a unitary piece, or by means of fixing means, such as by interlocking, by clipping, crimping, screwing or the like. The first endpiece (9) receives the aeraulic member (2) by interlocking. This engagement is effected in a sealed manner, by means of a deformable annular lip (13 ') that comprises the aeraulic member (2). According to non-illustrated variants of embodiment intended to allow a vertical mobility of the seat with respect to the supporting structure, the first end piece (9) can be organized as a telescopic element, or the aeraulic member (2) is capable of slidably fitted inside the first nozzle (9). Note that other modes of attachment are likely to be implemented for the junction between the first nozzle (9) and the aeraulic member (2).

  These provisions are such that the supply duct (1) and the aeraulic member (2) are in aeraulic communication by means of the intermediate duct (3) interposed between them. This communication is maintained during a movement of the seat in translation and whatever the position of the latter between its extreme positions of mobility. More specifically, a displacement of the seat induces a displacement of the closure member (5) along the window (4), the air flow being maintained between the interior volume of the intermediate duct (3) and the body aéraulique (2) despite a displacement thereof along the intermediate duct (3). It follows that the aeraulic connection between the feed duct (1) and the air flow member (2) is ensured despite the relative displacement of one with respect to the other, without conferring on the intermediate duct (3). a deformable character.

  The intermediate duct (3) comprises fixing means (11) to the supporting structure for its attachment to the latter. In the exemplary embodiment illustrated, these fastening means (11) use plates (12) formed on the intermediate pipe (3), which comprise holes (13) for the passage of fasteners, such as type by screwing. The plates (12) and the intermediate duct (3) advantageously form a unitary piece, being jointly formed by molding.

  The closure member (5) is formed of a thin strip, such as a textile strip, a strip of plastic material or the like. The first nozzle (9) has a shoulder (14) bearing against the outer face of the closure member (5), which has an opening (15) for the passage of the first nozzle (9). An antagonistic support member (16 '), such as a washer, is threaded hard on the first endpiece (9), being pressed against the inner face of the closure member (5). These arrangements are such that the closure member (5) is mechanically engaged on the first endpiece (9) by pinching between the shoulder (14) and the support member (16 '). The first nozzle (9) further comprises guide plates (16) along the intermediate conduit (3). These guide plates (16) are for example arranged in a flange formed on the first endpiece (9). This flange circulates along the guide means (6) of the closure member (5) along the intermediate duct (3), and more particularly along the outer edge of the slideways.

  The intermediate duct (3) comprises an opening (17) for the passage of air from the supply duct (1), with which it is in aeraulic communication via a second nozzle (18). This second nozzle (18) is integral with the intermediate duct (3), with which it advantageously forms a unitary piece obtained by molding. According to an embodiment not shown, the second endpiece (18) is capable of being attached integrally with the intermediate duct (3) by fastening means, such as by screwing, gluing, welding, crimping by interlocking or the like. The second end piece (18) is formed on a wall of the intermediate duct (3) which extends in a transverse plane, in particular perpendicular to the extension plane of the window (4), and more particularly to the general extension plane of the shutter member (5). In the illustrated case where the shutter member (5) is closed in a loop on itself, these arrangements make it possible to prevent it from becoming a hindrance to the passage of air from the supply duct. (1) to the internal volume of the intermediate duct (3).

  According to an alternative embodiment not shown, a secondary heating, ventilation and / or air conditioning is likely to be interposed between the intermediate duct (3) and the supply duct (1). More particularly, the intermediate duct (3) is capable of participating in such a secondary installation (3), of which it can constitute a wall.

  In fig.4 to fig.6, the intermediate duct (3) is integrated into the seat. This integration is for example carried out by securing the intermediate duct (3) to the frame of the seat by fastening means (19), comprising at least one fixed plate or attached to the intermediate duct (3) and fasteners, such as screw type or the like. The intermediate duct (3) is further advantageously wrapped by the seat lining, or is involved or attached to a secondary installation (20) ventilation, heating and / or air conditioning integrated seat.

  The supply duct (1) integral with the support structure is in aeraulic communication with the internal volume of the intermediate duct (3) by means of a first nozzle (10). This first nozzle (10) is integral with the closure member (3) and receives the supply conduit (1) by interlocking. In the exemplary embodiment illustrated, the supply duct (1) emerges from the floor through a single orifice. However, other arrangements for organizing the supply duct (1) can be envisaged without departing from the scope of the invention. The insertion of the supply duct (1) on the first nozzle (10) is made in a sealed manner, by means of a deformable annular lip (22) that comprises the supply duct (1). This first nozzle (10) is translational sliding along the window (4) formed through a wall of the closure member (5), this wall being intended to be placed facing the delivery member. (1). The connection between the first endpiece (10) and the closure member (5) is achieved by gluing, crimping, screwing, welding or the like. In the exemplary embodiment illustrated, the first endpiece (10) comprises fastening means (24) comprising a flange bearing against the internal face of the closure member (5), at the edge of the window (4). . This flange is advantageously used to cooperate with the guiding means (6) of the closure member (5) along the intermediate duct (3), for guiding the first nozzle (10) along the same. this. In the exemplary embodiment illustrated, the closure member (5) is formed of a belt closed loop on itself.

  The intermediate duct (3) has an opening (25) for the passage of air from its internal volume to the aeraulic member (2). This opening (25) comprises at least one zone arranged laterally to the plane of extension of the closure member (5), to allow the passage of air despite the presence thereof. It will be understood that the guiding means (6) are interrupted in the region of the opening (25) through which the air flows towards the aeraulic member (2). A second endpiece (26) is attached by interlocking cooperating members (23,24) on the intermediate duct (3). These interlocking members (23,24) are for example of the type associating a projection housed in a groove indifferently formed respectively on one and the other of the intermediate duct (3) and the second endpiece (26). In the exemplary embodiment illustrated, the second endpiece (26) is integral with the aeraulic member (2), with which it forms an integrated unitary molding part.

  The strength and rigidity of the intermediate duct (3) are advantageously used, to make it involved part of the secondary installation (20) of ventilation, heating and / or air conditioning integrated into the seat. In the exemplary embodiment illustrated, the intermediate duct (3) constitutes a wall of a chamber (29) for recycling air from the passenger compartment of the participating vehicle of this secondary installation (20).

  According to various alternative embodiments, the secondary installation (20) is mounted either on the carrier structure of the vehicle, such as for example the floor of the passenger compartment of the vehicle or alternatively on or inside the seat (s) ( s) equipping the passenger compartment of the vehicle.

  In FIGS. 7 and 8, the intermediate duct (3) consists mainly of two lateral shells (30, 31) joined to one another by cooperating assembling members (32, 33, 34, 35). A first set of such connecting members (32,33) extends transversely inside the intermediate duct (3). These members (32,33) consist respectively of a first recessed body for the passage of a screw (36), and a second body for receiving the screw (36). A second set of connecting members (34, 35) is constituted by cooperating engagement members arranged at the periphery of the opening of the shells (30, 31), including a male member (35) arranged on any one at least shells (30,31), which is introduced by interlocking hard inside a female member (34) formed on the other shell (30,31). Advantageously, the assembly members (32,33,34,35) are integrally molded with the corresponding shell (30,31) to form a unitary piece. At least one of the shells (30,31) is capable of to be in relation with alternatively any one of the first nozzle (9,10) and the second nozzle (18,26), with which it advantageously forms a unitary piece.

  In fig.9 and fig.10, the closure member (5) is arranged in a belt, which incorporates molding means (37) for its plating at the edge of the window (4). These plating means (37) cause a bearing of the closure member (5) within its guide means (6) along the intermediate duct (3), and more particularly against the face internal wall of the latter. These plating means (37) consist of a flexible body formed of reliefs (38) shaped as successive curved blades, which take a tangent support against the corresponding inner wing (7). These provisions are intended to maintain an effective seal against the external environment between the closure member (5) and the intermediate duct (3), and to prevent the introduction of foreign bodies inside the duct intermediate (3).

  Generally speaking, conduit means any enclosure capable of conveying a flow of air between two distant points, whether this chamber is structurally singular or participatory of a complex organ comprising a plurality of enclosures that can incidentally house functional organs, such as those a ventilation, heating and / or air conditioning system.

Claims (31)

claims   1.- Connecting device between at least one duct (1) mounted on a supporting structure, such as the floor of a vehicle, for the supply of air including from a ventilation, heating and / or or of air-conditioning equipping the vehicle, and at least one air-flow device (2) carried by a seat mounted to move on the supporting structure, this connecting device implementing at least one intermediate duct (3) equipped with air-to-air communication means respectively with the supply duct (1) and the aeraulic member (2), characterized in that said intermediate duct (3) is a rigid duct equipped with fastening means to the supporting structure or the seat.   2.- junction device according to claim 1, characterized in that the intermediate duct (3) is provided with fastening means (11) to the carrier structure.   3.- Connecting device according to claim 1, characterized in that the intermediate duct (3) is provided with integration means (19) to the seat.   4.- Connecting device according to any one of the preceding claims, characterized in that the intermediate duct (3) is arranged in elongate box. 25   5.- junction device according to any one of the preceding claims, characterized in that the aeraulic communication means comprise a first means of communication aeraulic between the intermediate duct (3) and the supply duct (1). ), and a second means for establishing aeraulic communication between the intermediate conduit (3) and the air flow member (2).   6. A junction device according to claim 5, characterized in that any one of the first means and the second means is movable in 1920translation along a window (4) that comprises the intermediate conduit (3).   7.- junction device according to claim 6, characterized in that the window (4) is equipped with a closure member (5) that comprises the intermediate conduit (3), said closure member being mounted movably in translation on the intermediate conduit (3) and being provided with any one of the first and the second means.   8.- junction device according to any one of claims 6 and 7, characterized in that the window (4) is formed through any of the side walls of the intermediate duct (3).   9.- junction device according to any one of claims 7 and 8, characterized in that the closure member (5) is slidably mounted along the wall of the intermediate duct (3) having the window (4) via guiding means (6).   10.- junction device according to any one of claims 7 to 9, characterized in that the closure member (5) is organized in a strip flowing along the window (4) by extending to the inside the intermediate duct (3).   11.- Connecting device according to claim 10, characterized in that the closure member (5) forms a loop inside the intermediate duct (3).   12.- junction device according to any one of claims 7 to 9, characterized in that the closure member (5) is organized in a deformable sheet extending along the window (4).   13.- junction device according to any one of claims 7 to 12, characterized in that guide means (6) of the closure member (5) consist of side rails which are provided at least on the edge of the window (4), and which house the edges of the shutter member (5).   14.- Connecting device according to claim 13, characterized in that the slides extend beyond the window (4) towards the inside of the intermediate duct (3) to maintain the guiding of the closure member ( 5) in the intermediate duct (3). 10   15.- junction device according to any one of claims 13 and 14, characterized in that the slides are formed between a wall of the intermediate duct (3) and a respective inner flange (7) for guiding an edge of the shutter member (5).   16. A connecting device according to any one of claims 7 to 15, characterized in that it comprises means (37) for plating the closure member (5) at the edge of the window (4). 20   17.- junction device according to claim 16, characterized in that the plating means (37) are of the elastic deformation type and are interposed between the closure member (5) and the intermediate duct (3).   18. A junction device according to claim 17, characterized in that the plating means (37) consist of a plurality of successive reliefs (38) individually deformable.   19.- junction device according to any one of claims 7 to 18, characterized in that the closure member (5) comprises an opening (8) 30 for a communication aeraulic between the internal volume of the intermediate duct (3) and any of the supply duct (1) and the air flow member (2). 15   20.- junction device according to claim 19, characterized in that the opening (8) is equipped with a first nozzle (9,10) engaged on the closure member (5) and on one any of the supply duct (1) and the air flow member (2).   21. Connecting device according to claim 20, characterized in that the closure member (5) and the first endpiece (9,10) form a unitary piece.   22.- Junction device according to claim 20, characterized in that the first nozzle (9,10) is engaged on the closure member (5) by means of fixing means (23,24). 15   23.- Connecting device according to any one of claims 20 to 22, characterized in that it comprises means for guiding the first nozzle (9,10) along the intermediate conduit (3).   24.- Connecting device according to any one of claims 5 to 23, characterized in that the intermediate duct (3) has an opening (17,25) for placing in aeraulic communication between the internal volume of the intermediate duct ( 3) and any of the first and second means. 25   25.- Connecting device according to claim 24, characterized in that the opening (17,25) is provided with a second end piece (18,26) in relation to any one of the supply duct (1) and the aeraulic organ (2)   26.- Connecting device according to claim 25, characterized in that the second endpiece (18,26) forms with the intermediate conduit (3) a unitary piece.   27.- Junction device according to claim 25, characterized in that the second endpiece (18,26) is integral with the intermediate duct (3) by means of fixing means.   28. A junction device according to any one of the preceding claims, characterized in that the intermediate duct (3) is formed from at least two shells (30,31) assembled to one another.   29.- Connecting device according to claim 28, characterized in that the shells (30,31) are mainly two in number, and consist of side shells assembled via cooperating assembly members (32, 33,34,35).   30.- Connecting device according to any one of the preceding claims, characterized in that the intermediate duct (3) is part of a wall of a plant (20) for ventilation, heating and / or air conditioning.   31.- Connecting device according to claim 30, characterized in that the intermediate duct (3) forms a wall of a chamber (29) for recycling air from a secondary installation (20) for ventilation, heating and / or integrated air conditioning at the seat.