Patent Publication Number: US-7588288-B2

Title: Automotive vehicle seat insert

Description:
CLAIM OF PRIORITY 
   To the extent applicable, the present invention is a continuation of and claims the benefit of the priority of U.S. application Ser. No. 10/966,653, filed Oct. 15, 2004 now U.S. Pat. No. 7,370,911 which is incorporated herein by reference for all purposes. 
   The present application claims the benefit of U.S. provisional application No. 60/512,230, filed on Oct. 17, 2003. 

   FIELD OF THE INVENTION 
   The present invention relates to a sealed insert for providing heating, ventilation or a combination thereof to a seat of an automotive vehicle. 
   BACKGROUND OF THE INVENTION 
   For many years the transportation industry has been concerned with designing seats for automotive vehicles that provide added comfort to occupants in the seats. Various innovations in providing seating comfort are discussed in U.S. Pat. Nos. 6,064,037; 5,921,314; 5,403,065; 6,048,024 and 6,003,950, all of which are expressly incorporated herein by reference for all purposes. In addition, other innovations in providing seating comfort are discussed in U.S. patent application Ser. No. 09/619,171, filed Jul. 19, 2000, titled “Ventilated Seat Having a Pad Assembly and a Distribution Device”; U.S. patent application Ser. No. 09/755,505, filed Jan. 5, 2001, titled “Ventilated Seat”; and U.S. patent application Ser. No. 09/755,506, filed Jan. 5, 2001, titled “Portable Ventilated Seat”, each of which are expressly incorporated herein by reference for all purposes. In the interest of continuing such innovation, the present invention provides an improved sealed insert for an automotive vehicle seat for assisting in providing comfort control to an occupant in the seat. 
   SUMMARY OF THE INVENTION 
   According to the present invention, there is disclosed a sealed insert for providing heating and ventilation to an automotive vehicle seat. The insert includes a middle layer sandwiched and between a forward layer and a rearward layer and sealed about a peripheral edge. The forward layer, the rearward layer or both preferably include a first opening and a plurality of second openings. Moreover, the middle layer preferably defines an open space in fluid communication with the first opening, the plurality of second openings or both. 
   According to one embodiment, the vehicle seat includes a seat cushion component and a seat backrest component, at least one of which is ventilated. Each ventilated component includes an air-permeable trim surface at the occupant contact areas of the seat and a cushion. The insert is located beneath the trim surface of each ventilated component and the insert includes an extension with the first opening defined therein. The extension preferably extends through a forward and a rearward surface of the cushion of the ventilated component and an air mover is attached to the extension of the insert in fluid communication with the open space of the insert. In one highly preferred embodiment, the insert includes a body portion from which the extension extends and the extension is contoured as it extends away from the body portion. In another embodiment, the air mover is fastened to lumbar guide wires of the automotive vehicle seat 

   
     BRIEF DESCRIPTION OF THE DRAWINGS 
     The features and inventive aspects of the present invention will become more apparent upon reading the following detailed description, claims and drawings, of which the following is a brief description: 
       FIG. 1  is a blown up perspective view of a seat insert in accordance with an exemplary aspect of the present invention; 
       FIG. 2  is a flow diagram for producing seat inserts in accordance with an exemplary aspect of the present invention; 
       FIG. 3  is a partially cut-away elevational view of the seat insert of  FIG. 1  after assembly of the insert; 
       FIG. 4  is a sectional view of the insert of  FIGS. 1 and 3  taken along line  4 - 4  in  FIG. 3 ; 
       FIG. 5  is a perspective view of an exemplary fan suitable for application in the insert of the present invention; and 
       FIG. 6  is a sectional view of the insert attached in an exemplary manner to a seat of an automotive vehicle according to the present invention. 
       FIG. 7  is a front perspective view of an exemplary insert being assembled to an exemplary backrest component of a vehicle seat. 
       FIG. 8A  is a rear cut away perspective view of the exemplary backrest component of  FIG. 7  with the exemplary insert assembled thereto. 
       FIG. 8B  is a perspective view of an exemplary fastener, which is employed for attaching an air mover assembly to a seat. 
       FIG. 9  is a top perspective view of another exemplary insert being assembled to an exemplary partially cut away seat component of a vehicle seat. 
       FIG. 10  is a top perspective view of the exemplary insert of  FIG. 9  assembled to the exemplary seat component. 
       FIG. 11A  is a bottom perspective view of the exemplary seat component of  FIG. 9  during assembly. 
       FIG. 11B  is another bottom perspective view of the exemplary seat component of  FIG. 9  after assembly. 
       FIG. 12  is a rear perspective view of an exemplary fan assembly according to the present invention. 
       FIG. 13  is a front perspective view of the exemplary fan assembly of  FIG. 12 . 
   

   DETAILED DESCRIPTION OF THE INVENTION 
   The present invention is predicated upon providing an insert suitable for placement within an automotive vehicle seat to provide heating, ventilation or a combination thereof to an occupant in the seat. The insert will typically include multiple (e.g., three) layers and each of the layers may include one or more sub-layers. The insert preferably includes an extension that extends to a backside of a seating component (e.g., a backrest or seat support component) of the seat. As an example, the extension may extend through a cushion of the seat to a backside of the cushion. The extension of the insert typically connects the insert to a fan for providing ventilation. Advantageously, the extension can be shaped to allow the fan to be attached to various parts such as a frame or lumbar guide wires of a vehicle seat. One exemplary insert that may be employed in the present invention is disclosed in U.S. patent application Ser. No. 10/434,890, filed May 9, 2003, which is hereby incorporated by reference for all purposes. 
   Referring to FIGS.  1  and  3 - 5 , there is illustrated an exemplary insert  10  suitable for placement within a seat of an automotive vehicle. The insert  10  preferably includes a plurality of layers that may be separate but are preferably attached to each other to form the insert. In the embodiment shown, the insert  10  includes a first or forward layer  14  (e.g., the layer of the insert configured to be closest an occupant of the seat), a second or middle layer  16  and a third or rearward layer  20  (e.g., the layer of the insert configured to be furthest from the occupant of the seat). 
   It is preferred that one of the layers  14 ,  16 ,  20  includes a heater. In the embodiment depicted, the forward layer  14  includes a heater sub-layer  26 , which is preferably laminated to a gas barrier sub-layer  28  (e.g., a film, a textile or otherwise) although such film is not necessarily required. Various different types of heaters are suitable for incorporation into a car seat and it is contemplated that any of such heaters may be incorporated into the insert  10  of the present invention. Such heaters typically incorporate flexible electrical heating elements that are preferably thin, flat, non-obtrusive or a combination thereof. As examples, a lay-wire heater, a carbon fiber heater, a positive thermal coefficient (PTC) heater, a thermoelectric heater or the like, which are typically supported with a backing (e.g., a cloth or fabric type backing) may be used within the insert. In a preferred embodiment, the heater sub-layer  26  is a carbon fiber type heater with a backing (e.g., a nonwoven layer). One exemplary preferred heater is sold under the tradename CARBOTEX® and commercially available from W.E.T Automotive Systems, Inc. in Germany and/or FTG Fraser-Technik GmbH, Schleizer Strasse 56-58, D-95028 Hot/Saale, Germany. An example of such a heater is disclosed in U.S. Pat. No. 6,064,037, issued May 16, 2000, herein expressly incorporated by reference for all purposes. 
   The barrier sub-layer  28  is typically formed of a plastic or polymeric material that softens or melts upon exposure to heat to assist the sub-layer  28  to adhere to one or more other layers or sub-layers. Alternatively, the barrier sub-layer  28  may be formed of fabrics, woven materials (e.g, goretex or microfibers), nylon, closed pore foam or other materials. Preferably, the barrier sub-layer  28  is substantially impermeable to fluids and particularly air such that the sub-layer  28  can assist in forming an air barrier as will be described further herein. Dimensionally, for a film barrier sub-layer, it is preferable for the film thickness to be about 0.1 mm to about 2.0 mm thick and more preferably about 0.7 mm to about 1.0 mm thick. Of course, it is contemplated that the film sub-layer  28  may have a variable thickness and may be outside of the aforementioned ranges. 
   The first layer  14  also includes one or more buffer sub-layers, one or more adhesives or adhesive sub-layers, one or more tape sub-layers, one or more porous foam layers or a combination thereof. Adhesive may be supplied in layers, drops or in a variety of other configurations. Preferably, the buffer layer is at least partially formed of an insulating material. 
   In the preferred embodiment depicted, the first layer  14  includes two adhesive sub-layers  34 , one strip of tape  36  and one buffer sub-layer  38 . The adhesive sub-layers  34  are preferably formed of a hot melt adhesive although not necessarily required. 
   According to an alternative embodiment, it is contemplated that the first layer  14  may also include an air-permeable layer (not shown) between the buffer sub-layer  38  and an occupant of the seat. The air-permeable layer, which may be any one of a variety of air-permeable materials (such as reticulated foam, for example) may be able to help distribute air under the occupant. 
   One of the layers  14 ,  16 ,  20 , preferably the middle layer  16 , includes a spacer sub-layer  48  formed of a spacer material. In the preferred embodiment depicted, the middle layer  16  includes only the spacer sub-layer  48 , however, it is contemplated that additional sub-layers (e.g., adhesive sub-layers) or other materials (e.g., adhesives) may be incorporated into the middle layer  16 . The particular sub-layer  48  shown is formed of polymeric (e.g., polyester) strand material that is interwoven to provide opposing honeycomb structures  56  (e.g., fabric panels), which are interconnected by several additional polymeric strand materials to provide open space  58  between the structures  56  while still providing cushion and support. As an example, one preferred material is sold under the tradename 3MESH® and is commercially available from Müller Textil GmbH, Germany or Müller Textiles, Inc., Rhode Island, USA. 
   In another of the layers  14 ,  16 ,  20  of the insert  10 , preferably the rearward layer  20 , there is included an outer protective or buffer sub-layer and another barrier sub-layer. In the embodiment shown, one integrated sub-layer  62  provides the both the barrier sub-layer  66  and the outer protective sub-layer  68  although they may be provided separately. The barrier sub-layer  66  for the rearward layer  20  may be the same or different than the barrier sub-layer  28  of the forward layer  14 . 
   Preferably, the protective sub-layer  68  is formed of a fleece material, however, various other materials may be used such as gauze, cloth, fabric or the like. It is also preferable for the rearward layer  20  to include an adhesive or adhesive sub-layer  70  similar to or the same as those discussed in relation to the forward layer  14 . According to a preferred embodiment, the adhesive sub-layer  70  is provided integrally with the integrated sub-layer  62 . 
   In a highly preferred embodiment, an attachment component  72  is included in one of the layers  14 ,  16 ,  20 . The attachment component  72  shown in  FIG. 1  is a frame member that preferably defines an opening or through-hole  74 . It is contemplated that the frame member may be in a variety of configurations (e.g., annular, rectangular, square, geometric or otherwise) and may be formed of a variety of preferably rigid or semi-rigid materials (metal, plastic or the like). 
   Notably, several of the materials of the various layers and sub-layers of the insert  10  may be environmentally friendly. For example, and without limitation, the materials of the spacer sub-layer  48 , the buffer and protective sub-layers  38 ,  68  and the barrier sub-layers  28 ,  66  may be recyclable. 
   Assembly 
   Generally, for forming a vehicle seat insert according to the present invention, it is contemplated that the various layers and sub-layers of the insert as described above may be combined in a variety of sequences and according to a variety of protocols and technique as long as the insert is or becomes sealed about its periphery. Thus, the order in which the various layers and sub-layers are combined and the techniques of combining should not in any way limit the present invention unless such order or techniques is specifically claimed. Moreover, it is also contemplated that there may be greater or fewer layers and that each layer may include greater or fewer sub-layers. 
   According to a preferred method, the sub-layers of the front or first layer and the third or rearward layer are each laminated separately followed by laminating the front layer to the rearward layer with the middle layer in between. Referring to  FIGS. 1 and 2 , the first layer  14  is formed according to a preferred method by feeding the various sub-layers  38 ,  36 ,  34 ,  26 ,  28  to a laminator  80  (e.g., a belt and roller laminator). 
   The sub-layers  36 ,  38 ,  34 ,  26 ,  28  are preferably fed to the laminator  80  from rolls or otherwise and are cut to shape to form the first layer  14  after lamination. The first layer  14  may be cut to nearly any desired shape or configuration. In the illustrated embodiment, the first layer  14  is cut to be generally rectangular and to include an extension  84  and a plurality of through-holes  86 . In  FIG. 1 , the through-holes  86  are arranged in a generally rectangular configuration and are each substantially the same size. In  FIG. 3 , however, the through-holes  86  are shown in a preferred configuration as progressively becoming larger from one side of the insert  10  to another. 
   Referring to  FIG. 3 , the through-holes  86  preferably increase in size as the distance of the holes from the fan increases. This increase in size can provide a more uniform flow of air throughout the insert  10 . It is believed that the increase in the total cross-sectional area of through-holes  86  as the distance from the fan increases allows air to enter or exit the openings at a more uniform rate than if the cross-sectional areas of through-holes at different distances from the fan were equal. 
   The rearward layer  20 , like the front layer  14 , may be formed by attaching it sub-layers  62 ,  70  in a lamination process. Referring again to  FIGS. 1 and 2 , the barrier sub-layer  66 , the protective sub-layer  68  and the adhesive sub-layer  70  are fed to a laminator  90  (e.g., a belt laminator) such that the barrier sub-layer  66  is between and attached to the adhesive sub-layer  70  and the protective sub-layer  68 . Thereafter, the rearward layer  20  is cut to have a shape substantially corresponding to the first layer  14 . Of course, it is contemplated that the rearward layer may be cut into a variety of other configurations as well. Preferably, the rearward layer  20  includes a through-hole  98  as shown in  FIG. 3  through an extension  100  of the rearward layer  20  that corresponds to the extension  84  of the first layer  14 . It is contemplated, however, that the through-hole  98  may also be formed in the forward layer  14  if desired. 
   Once the middle layer  16  has been appropriately cut or otherwise shaped to the proper configuration, which preferably corresponds to the forward and rearward layers  14 ,  20 , each of the layers  14 ,  16 ,  20  are laminated together to attach the layers  14 ,  16 ,  20  to each other. As shown, the middle layer  16  may be cut to include an extension  96  corresponding to the extensions  84 ,  100 . 
   In the preferred embodiment, the layers  14 ,  16 ,  20  are laminated in a stationary lamination device  104  at elevated temperatures such that the adhesive sub-layer  70  of the rearward layer  20  and the outermost adhesive sub-layer  34  of the forward layer  14  both adhere and attach the forward layer  14  and the rearward layer  20  to the middle layer  16  (e.g., the honeycomb structure). At the same time, the barrier sub-layer  28  of the front layer  14  and the barrier sub-layer  66  of the rearward layer  20  are adhered to one another about an outer peripheral strip  106  of the insert  10 . For desirably locating the strip  106  (i.e., closer to the rearward layer, the forward layer or somewhere therebetween), it is contemplated that the forward or rearward layers may be cut slightly larger or smaller than each other or they may be the same size. 
   It is also preferred that the attachment component  72  be sandwiched and attached between at least portion of the rearward layer  20  and the middle layer  16  although the attachment component may be otherwise attached (e.g., retrofit, fastened, or the like). Advantageously, the adhesive sub-layers  34 ,  70  and the outer laminated peripheral strip  106  separately and together assist in forming the insert  10  as a tightly integrated unit wherein the layers  14 ,  16 ,  20  are substantially immobile relative to each other. 
   While pre-cutting the layers  14 ,  16 ,  20  followed by laminating the peripheral edges of at least two of the layers  14 ,  20  have been discussed, it is contemplated that cutting of the layers  14 ,  16 ,  20  and laminating of the layers may be integrated into a single processing step. For example, it is contemplated that supplies (e.g., rolls) of each of the layers  14 ,  16 ,  20  may be provided to a machine that laminates outer edges of each of the layers  14 ,  16 ,  20  together for forming the peripheral strip  106  as the supplies continuously or intermittently provide the layer  14 ,  16 ,  20  to the machine. Thus, inserts  10  may be formed by cutting the inserts  10  with the peripheral strip  106  from the laminated layers  14 ,  16 ,  20  and such cutting may be performed by the laminating machine or by another cutting machine or device. In such an embodiment, it is contemplated that the through-holes in the forward layer  14  and the through-hole in the rearward layer may be formed prior to, during or after lamination forming the outer peripheral strip  106 . 
   It is also contemplated that additional cutting or laminating steps may also be employed. For example, it is contemplated that the layers, the sub-layers or both may be partially cut or shaped prior to stationary or other lamination and further cut or shaped after such lamination. 
   During final assembly  110 , the wire harness  40  is preferably inserted within the pocket formed by the tape  36  or otherwise attached to the insert  10 . Also, a fan, the housing  120  of which is shown in  FIG. 5 , is preferably attached to the attachment component  72  of the insert  10 . In the embodiment shown, the housing  120  include flanges  124  suitable for snap-fitting the housing  120  to the attachment component  72 . In this manner, the fan can be attached to the rest of the insert  10  and can be placed in fluid communication with the through-holes  86  of the first layer  14 , the open space  58  of the middle layer  16  and the through-hole  98  of the rearward layer  20 . Advantageously, the attachment component  72  and flanges  124  provide a unique and efficient method of attaching the fan to the insert  10 . It is contemplated however, that various other methods of attachment (e.g., fasteners, sewing, mating threaded attachments, quick connects or the like) may be used to attach the fan to the insert  10 . It is also contemplated that the attachment component  72  and the housing  120  and flanges  124  of the fan may be varied within the scope of the present invention. 
   For assembly of the insert  10  to a vehicle seat (not shown), the insert  10  is preferably connected (e.g., sewn, adhered or otherwise attached) to a portion of the seat such as the cover (e.g., a perforated leather cover) or to a cushion (e.g., foam) of the seat. In one preferred embodiment, a seat cover may be configured to include a pocket for receiving the insert  10 . Alternatively, it is contemplated that hook and loop fasteners may be utilized to attach the insert  10  to portions (e.g., the cover or foam) of the seat. For example, a strip of hook and loop fastener may be attached (e.g., adhered) to the insert and another strip of hook and loop fastener may be attached (e.g., adhered) to the foam cushion within a trench. Thus, the strips can be fastened to each other thereby attaching the insert to the cushion. 
   The insert  10  is preferably positioned in the seat such that the first layer  14  is closer to the outer seat cover relative to the rearward layer  20  although not necessarily required. It is also preferable for an extension  139  formed by the extensions  84 ,  96 ,  100  of the layers  14 ,  20  to extend behind, in front of or through the cushion of the seat such that the fan may be attached to a portion of the frame of the vehicle seat. Of course, attachment of the insert to the fan and attachment of the fan to the seat or other portion of the vehicle may be accomplished in any order. 
   Preferably, the extension  139  is a tubular structure for providing fluid communication between the open space of the spacer layer  48  and the fan. Additionally, the wire harness  40 , the heater sub-layer  26 , the fan or a combination thereof are preferably connected in signaling communication with a control unit  130  and/or each other. The control unit  130  may be separate from or integrated into the vehicle. 
   Moreover, while the air movers are typically shown as being configured for connecting to the extension of the insert. It is also contemplated that an air mover may be otherwise located relative to the insert. For example, a fan might be attached to a main or body portion of the insert and the fan may be attached to the foam cushion of the seat. In such an embodiment, it would typically be desirable to provide fluid communication to the fan, for example, by providing an opening in the foam cushion. 
   In one embodiment referring to  FIGS. 3 ,  4  and  6 , the insert  10  is formed with one or more (e.g., three) through-holes  140  that extend through the layers, sub-layers or both of the insert  10  such that the through-holes  140  extend entirely or substantially entirely through the insert  10 . Preferably, the insert  10  (e.g., the barrier layers  28 ,  66 ) have a seal  141  about the through-holes  140  for substantially preventing direct fluid communication between the through-holes  140  and the open space  58  within the insert  10 . In the embodiment depicted, the barrier sub-layers  28 ,  66  are attached to each other during the lamination process to form a substantially air-tight seal  141  about the through-holes  140 . 
   Advantageously, the through-holes  140  can assist in the assembly of the insert  10  and/or a seat cover  142  to a seat  144  of an automotive vehicle. As shown, for each through-hole  140 , a portion  148  (e.g., a cushion layer, a felt layer, a leather layer, combinations thereof or the like) of the seat cover  142  is extended through the through-hole  140  and is attached to foam  154  of the seat  144 . In the embodiment depicted, the portion  148  is attached to the foam  154  by wrapping or otherwise attaching the portion  148  about a member  162  (e.g., a bar or wire) that is attached to (e.g., at least partially imbedded within) the foam  154 . Additionally, one or more loops  166  (e.g., metal loops) are integrated with the portion  148  and are looped about the member  162  for assisting in attaching the portion  148  to the member  162 . 
   It shall be appreciated that, in embodiments alternative to the one depicted, a variety of materials or members such as wire, thread, stitches, fasteners, foam or the like may extend through the through-holes  140  in the insert  10  for assisting in the attachment of the seat cover  142 , the insert  10  or both to the other components of the seat  144 . Moreover the materials or members may be connected to the seat cover, the foam, the seat frame, other portions of the seat or vehicle or the like depending on the desired configuration. It is also contemplated that other attachment methods such as the use of alternative fastening devices may be employed in addition to or alternative to the through-holes  140 . For example, hook and loop fasteners, sewing, adhesives or other fastening devices or mechanisms may be employed to locate the insert  10  relative to the seat cushion, the seat cover  142  or both. 
   Operation 
   In operation, the insert of the present invention can preferably provide heating, ventilation or a combination thereof to an occupant of a seat having the insert. In particular, if heat is desired, electric current can be induced to travel through the heater sub-layer  26  by the control unit  130  or otherwise such that the heater sub-layer  26  can provide heat to the occupant. 
   Alternatively, if ventilation is desired, the fan can be operated via the control unit  130  or otherwise to pull air through the through-holes  86  in the first layer  14  of the insert  10 , through the open space  58  of the middle layer  48  of the insert  10  and through the through-hole  98  of the rearward layer  20 . Such air preferably flows at least partially past the occupant of the seat and through the seat cover (e.g., a perforated leather seat cover or cloth seat cover) thereby providing ventilation to the occupant and providing convective heat transfer from the occupant to the flowing air. 
   Although, it may be preferable for only the heater sub-layer  26  or the ventilation system to be running at one time, it is contemplated that both may be operated simultaneously. Moreover, it is contemplated that both the heater sub-layer  26  and the ventilation system may be operated at various levels (e.g., 2 or more levels of output) such as by having a fan that can operate at different levels or by having various levels of electricity flowing through or throughout the heater sub-layer  26 . It is also contemplated that the fan may push air into the open space  58  of the insert  10 , such as during an initial short duration cool-down period for a vehicle interior (e.g., after the vehicle has been in sunlight or other hot conditions), as well as pulling air from the open space  58  thereafter. 
   It is also contemplated that one or more temperature sensors (e.g., a thermostat, a thermistor or the like) may be included adjacent the insert, the trim layer or the like. Preferably, any temperature sensors are near the seat cover or the insert for sensing a temperature closely related to (e.g., at or near) a temperature being experienced by an individual in the seat. Such temperature sensors may be in signaling communication with the control unit  130  such that the control unit  130  can control the fan  22 , the heater layer  28  or both for attaining or maintaining a desired temperature at areas adjacent the individual and/or the temperature sensor. Moreover, the control unit  130  may be programmed with instructions for commanding the fan  22 , the heater layer  28  or both to change output levels (e.g., turn on or turn off) if the temperature sensor senses a temperature above or below one or more threshold levels. An example of such programming is described in a copending patent application titled “AUTOMOTIVE VEHICLE SEATING COMFORT SYSTEM”, Ser. No. 60/428,003, filed Nov. 21, 2002 and incorporated herein by reference for all purposes. 
   Advantageously, the plastic film sub-layers  28 ,  66  respectively of the first and third layers  14 ,  20  provide a substantially gas-tight seal about the middle layer  16  (e.g., the spacer sub-layer  48 ). In this manner, gas flow relative to the open space  58  of the spacer sub-layer  48  is substantially restricted to flowing through the through-holes  86 ,  98  of the first and third layers  14 ,  20 . 
   In alternative embodiments, the extension of the insert may extend behind the seat cushion by extending around the seat cushion, extending between two seat cushions, extending through a portion or the entirety of the seat cushion, a combination thereof or the like. Moreover, it is contemplated that the extension may be shaped as desired to assist the extension in extending to a desired location behind the seat cushion. For example, the extension may be arced, angled, contoured, straight or otherwise configured as it extends away from the rest of the insert. 
   Referring to  FIGS. 7 and 8A , there is illustrated the insert  10  of the present invention assembled to a seat backrest component  200 . In the particular embodiment, a body portion  202  of the insert  10  overlays a forward surface  204  of a backrest cushion  206  of the backrest component  200 . Preferably, the body portion  202  of the insert  10  is attached to the cushion  206  of the backrest component  200 , although it may alternatively be attached to a cover layer or other portion of a seat. Of course, the insert  10  may be attached to the cushion  206  or cover layer using any of the attachments disclosed herein. 
   As shown, the backrest cushion  206  has an opening  210  (e.g., a slot or through-hole) extending generally through the cushion  206  of the backrest component  200 . In particular, the opening  210  extends through the forward surface  204  and a rearward surface  212  of the cushion  206  at a central area of the cushion  206 . Advantageously, the opening  210  is sized to receive the extension  139  of the insert  10  and the extension  139  extends into and through the opening  210  and behind the cushion  206  to oppose at least a portion of the rearward surface  212  of the cushion  206 . In the embodiment shown, the extension  139  extends to an air mover  216  (e.g., a blower or other fan), which is also located behind the cushion  206 . 
   Referring to  FIGS. 9-11B , there is illustrated an alternative insert  220  according to the present invention. The insert  220  is configured in a manner similar to any of the inserts described herein, however, the insert includes an extension  222  that is contoured (e.g., arced or angle) or non-linear as it extends away from a body portion  226  of the insert  220  and the extension  222  extends from a different edge of the body portion  226  of the insert  220  than shown in previous embodiments. In particular, the extension  222  extends from an edge  228  that is configured to be coextensive with or extending substantially parallel to a side edge  230  of a seat cushion  232  or seat cushion component  234  as shown. Moreover, the extension  222  extends outward from the body portion  226  of the insert  220  from a proximate portion  236  to a distal portion  238  with a contoured (e.g., arced, angled or non-linear) portion  240  therebetween. Preferably, the contoured portion  240  arcs to allow at least the distal portion  238  of the extension  222  to substantially coextend or become substantially parallel with the edge  228 . 
   As shown, the body portion  226  of the insert  220  overlays a forward surface  246  of the seat cushion  232  of the seat cushion component  234 . Preferably, the body portion  226  of the insert  220  is attached to the cushion  232  of the seat cushion component  234 , although it may alternatively be attached to a cover layer or other portion of a seat. Of course, the insert  220  may be attached to the cushion  232  or cover layer using any of the attachments disclosed herein. 
   As shown in cut-away, the seat cushion  232  has an opening  250  (e.g., a slotted through-hole) extending generally through the cushion  232  of the seat cushion component  234 . In particular, the opening  250  extends through the forward surface  246  and a rearward surface  254  of the cushion  232  at a side area of the cushion  232 . Advantageously, the opening  250  is sized to receive the extension  222  of the insert  220  and the extension  222  extends into and through the opening  250  and behind the cushion  232  to oppose at least a portion of the rearward surface  250  of the cushion  232 . 
   In the embodiment shown, the extension  222  extends to an air mover (e.g., a blower or other fan), which is also located behind the cushion  232 . As an added advantage, the contoured portion  240  allows the extension  222  to extend toward a forward edge  254  of the seat cushion  232  and/or seat cushion component  234 . It should be understood, however, that such a contoured portion  240  may be configured to allow the extension  222  to extend toward any desired location. 
   It should be understood that in any of the embodiments disclosed herein, steps used to assemble the insert to a cushion component may be carried out in any desired order. For example, the insert may be attached to the cushion component followed by extending the extension through the cushion opening. Alternatively, the extension may be extended through the cushion first. 
   Preferably, the air mover is attached to a component that maintains a substantially identical location with respect to a seat or backrest cushion to which the insert is applied particularly during adjustment of the cushion position or seat. Of course, it is contemplated that the location of the air mover may change relative to the seat or backrest cushion as well. 
   Referring to  FIGS. 12 and 13 , there is illustrated one exemplary fan assembly  300  according to the present invention. The assembly  300  includes the fan  216  attached to a mounting structure  304 . In the particular embodiment shown, the fan  216  includes a housing  308  (e.g., a plastic housing) that is attached to the mounting structure  304  with a plurality of fasteners  312  (e.g, screws). The mounting structure  304  is shown as a substantially rectangular metal plate with rounded off corners  314  and a plurality of openings  318  (e.g., through-holes) extending through the plate, one opening  318 , adjacent each corner  314 . Of course, it is contemplated that a variety of structures other than plates may be employed as the mounting structure and a variety of materials (e.g., plastics, fabrics or the like) may be employed for forming the structure in a variety of alternative configurations. 
   The assembly  300 , as shown in  FIG. 8A  also includes one or more fasteners  324  attached thereto. As shown in  FIG. 8B , each fastener  324  includes a body portion  326  with projections  328 ,  330  extending therefrom for interference fitting the fastener  324  to the mounting structure  304 . In the embodiment shown, each fastener  324  includes a pair of projections  330  extending from an end  336  of the fastener  324  and a conical projection  328 . Preferably the pair of projections  330  and the conical projection  328  extend at least partially toward each other, although not required. 
   Each fastener  324  also includes a fastening mechanism  340  for attaching the fastener  324 , the fan assembly  300  or both to one or more components of the seat or other portion of the automotive vehicle. Preferably, the fastening mechanism  340  can be attached by interference fit, adhesion, magnetism or otherwise. In the particular embodiment depicted, the fastening mechanism  340  is a C-shaped clip configured for forming an interference fit. It is generally contemplated that the fastening mechanism may be fitted with a locking mechanism (not shown) to enhance the ability of the fastening mechanism  340  in attaching to members. 
   In  FIG. 8A  the fan assembly  300  is attached to a pair of members  350  that extend substantially parallel to the back surface  212  of the backrest component  200 . As shown, the members  350  extend substantially vertically when the backrest component  200  is in the upright position, although they may extend in a variety of directions depending upon the members  350  employed and the seat configuration. In the particular embodiment illustrated, the members  350  are cylindrical metal wires that form a portion of a lumbar guide or back support adjustment assembly. Preferably, the members  350  are substantially stationary relative to the backrest component  200 , although not required. 
   For attaching the fan assembly  300  to the members  350 , the end  336  and projections  330  of the fasteners  324  are extended through the openings  318  of the mounting structure  304  until the mounting structure  304  is interference fit between the pair of projections  330  and the conical projection  328 . Also, the fastening mechanisms  340  of each of fasteners  324  are interference fit (e.g., at least partially clipped about) the members  350 . 
   As shown, the mounting structure  304  is between the members  350  and the cushion  206 . In an alternative embodiment, however, the mounting structure  304  may be located on a side of the members  350  away from the cushion  206 . In such an embodiment, the fasteners  324  would have to be reversed such that the fastening mechanisms  340  extend toward the cushion  206  and the fan  216  would be located at least partially between the members  350 . Advantageously, such an embodiment can provide for greater space between the fan  216  and the cushion  206  for allowing air to flow to or from the fan  216  more easily. 
   Referring to  FIGS. 11A-11B , the fan assembly  300  is attached to a support frame  360  for the cushion  232 . As depicted, the mounting structure  304  is attached to the support frame  360  and an opening  364  (e.g., a through hole) extending into the insert  220  is placed in fluid communication with the fan  216 . It is contemplated, however, that the fan  216  may be directly attached to the support frame  360  and the mounting structure  304  may be removed. Moreover, the support frame  360 , particularly when molded of plastic, can be molded to specifically receive the fan  216  and assist in its attachment thereto. 
   While is contemplated that any of the inserts or extensions may be attached to the fan using the ring  72  of  FIG. 5 , it is also possible to design a ring, which aids in the assembly of the insert to the fan. As an example, there is a ring  370  illustrated in  FIG. 13  having an extension  372  (e.g., a semi-circular extension) extending from the ring  370  and a lip  376  located adjacent an interface of the ring  370  and the extension  372 . As shown, the extension  372  extends away from the ring  370  in the same plane as the ring  370  and the lip  376  extends from the extension  372  at least partially perpendicular to the plane of the ring  370  and the extension  372 . Thus, the lip  376  is configured for extending outwardly away from any insert into which the ring  370  is installed. 
   To assemble the ring  370  and the insert when attached to the ring  370  to the fan  216 , the lip  376  can be abuttingly engaged with the housing  308  of the fan  216  adjacent an edge  380  of the housing  308 . In turn, the ring  370  is aligned with fasteners  384  of the fan  216  such that the ring  370  may be snap-fit to an inner annular edge  386  of the fasteners  384  as described previously with regard to the ring  72  of  FIG. 5 . 
   It should be recognized that various alternative attachments other than the rings described may be employed to attach the air movers to the inserts. For example, attachments such as twist locks, spring locks, tabs on a ring, tabs on the air mover housing, combinations thereof or the like may be employed. It should be further recognized that the air mover, the snap ring or both can include protective equipment such as fingerguards (e.g., cross-bars) or the like. 
   Unless stated otherwise, dimensions and geometries of the various structures depicted herein are not intended to be restrictive of the invention, and other dimensions or geometries are possible. Plural structural components can be provided by a single integrated structure. Alternatively, a single integrated structure might be divided into separate plural components. In addition, while a feature of the present invention may have been described in the context of only one of the illustrated embodiments, such feature may be combined with one or more other features of other embodiments, for any given application. It will also be appreciated from the above that the fabrication of the unique structures herein and the operation thereof also constitute methods in accordance with the present invention. 
   The preferred embodiment of the present invention has been disclosed. A person of ordinary skill in the art would realize however, that certain modifications would come within the teachings of this invention. Therefore, the following claims should be studied to determine the true scope and content of the invention.