REFERENCE TO PRIOR APPLICATIONSThis application is a continuation of U.S. application Ser. No. 13/252,510, filed Oct. 4, 2011, which is a continuation of U.S. application Ser. No. 12/904,498 filed on Oct. 14, 2010, abandoned, which is a continuation of U.S. application Ser. No. 11/525,194, filed on Sep. 21, 2006, abandoned, the entireties of which are incorporated herein by reference.
BACKGROUND OF THE INVENTION1. Field of the Invention
The present invention relates to a vehicle seat which can exert a function of absorbing any volatile substances in an interior of a vehicle.
2. Description of the Related Art
Hitherto, there has been proposed a vehicle seat provided with a sheet of a nonwoven fabric to which a chemical reactive deodorant including a deodorant oxidation-decomposing is applied and which can therefore exert a function of deodorizing unpleasant odor components caused by such as the sweat smell of a passenger, the smell of tobacco smoke, or the like (Japanese Patent Application Laid-Open No. Hei. 10-327980). The nonwoven fabric sheet with the function of deodorizing is employed as a covering member for a seat cushion of the vehicle seat and provided so as to cover a lower portion of the seat cushion.
In the conventional vehicle seat, there is a possibility that the deodorant will be peeled off from the nonwoven fabric sheet, resulting in losing the deodorizing function. In addition, areas of the nonwoven fabric sheet from which the deodorant is peeled off are exposed as dirty areas, resulting in detracting from the appearance of the vehicle seat.
SUMMARY OF THE INVENTIONThe present invention has been made with a view to overcoming the foregoing problems of the prior art vehicle seat.
It is therefore an object of the present invention to provide a vehicle seat with a prolonged function of efficiently absorbing and eliminating any volatile substances caused by any smell or odors in an interior of a vehicle with the vehicle seat.
It is another object of the present invention to provide a vehicle seat which can easily provide a function of absorbing any volatile substances in an interior of a vehicle with the seat, without modifying structural members for the vehicle seat and changing the appearance of the vehicle seat.
In accordance with the present invention, there is provided a vehicle seat with a function of absorbing volatile substances. The vehicle seat comprises a seat frame means, a cushioned padding means supported on the seat frame means, and a volatile substances-absorbing means capable of absorbing any volatile substances in an interior of a vehicle, the volatile substances-absorbing means being provided on a surface of the cushioned padding means which faces the seat frame means.
In a preferred embodiment of the present invention, the volatile substances-absorbing means comprises a sheet of a nonwoven fabric. The nonwoven fabric may comprise an activated carbon fabric.
In the vehicle seat constructed as discussed above, the volatile substances-absorbing means is provided on the surface cushioned padding means which faces the seat frame means, so that the volatile substances-absorbing means is subjected to the loading imposed by a passenger sitting on the vehicle seat, and is directly affected by air-exhaust and air-suction which are caused by repeated compression and restoration of the cushioned padding means when the vehicle employing the seat is traveled and subjected to vibration or the like. Therefore, the volatile substances-absorbing means can efficiently absorb and eliminate any volatile substances in the interior of the vehicle.
Moreover, the volatile substances-absorbing means can prevent the cushioned padding means from being directly contacted with the seat frame means. Therefore, there is no possibility that noise will be produced by rubbing the cushioned padding means against the seat frame means. In addition, the volatile substances-absorbing means is applied onto the surface of the cushioned padding means and housed within the interior of the vehicle seat, so that the volatile substances-absorbing means can easily provide the function of absorbing the volatile substances, to the vehicle seat, without modifying structural members of the vehicle seat and changing the appearance of the vehicle seat.
The seat frame means may comprise a seat frame for a seat back of the vehicle seat and/or a seat frame for a seat cushion of the vehicle seat. The cushioned padding means may comprise a cushioned padding for the seat back and/or a cushioned padding for the seat cushion. The volatile substances-absorbing means is provided on a surface of the cushioned padding of the seat back which faces the seat frame of the seat back, and/or a surface of the cushioned padding of the seat cushion which faces the seat frame of the seat cushion.
When the volatile substances-absorbing means is applied to both the cushioned padding of the seat back and the cushioned padding of the seat cushion, volatile substances-absorbing area is increased, so that it is possible to more effectively absorb and eliminate the volatile substances in the interior of the vehicle.
These and other objects and many of the attendant advantages of the present invention will be readily appreciated as the same becomes better understood by reference to the following detailed description when considered in connection with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGSFIG. 1 is a schematic sectional view of a seat back for a vehicle seat according to the present invention;
FIG. 2 is a schematic rear elevation of a cushioned padding for the seat back ofFIG. 1; and
FIG. 3 is a schematic sectional view of a seat back according to a modification of the seat back shown inFIG. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTReferring nowFIG. 1, there is illustrated a seat back of a vehicle seat according to an embodiment of the present invention. The seat back includes a volatile substances-absorbing means1 capable of absorbing any volatile substances in an interior of a vehicle with the seat, a cushionedpadding2, aseat back frame3, and cushion springs4 (only onecushion spring4 is shown inFIG. 1). Thecushion springs4 are stretched between a pair of spaced apartside sections3aof theseat back frame3. The volatile substances-absorbing means1 comprises a sheet of a nonwoven fabric. The cushionedpadding2 is made from a resin-foamed, molded product and comprises afirst section2awhich corresponds to a section of the seat back of the vehicle seat on which a passenger rests when the passenger sits on the vehicle seat, andsecond ridge sections2brespectively formed at the left and right side portions of thefirst section2aof the cushionedpadding2. The cushionedpadding2 is supported on theseat back frame3 and thecushion springs4 with thefirst section2abeing carried on thecushion springs4, with thenonwoven fabric sheet1 being sandwiched between thefirst section2aof the cushionedpadding2 and thecushion springs4, and with thesecond ridge sections2benclosing theside sections3aof the seat backframe3.
Referring toFIG. 2, thenonwoven fabric sheet1 is applied onto a substantially entire area of a back surface of the first section of the cushionedpadding2 which faces theseat back frame3, and fixed at peripheral regions of thenonwoven fabric sheet1 to the cushionedpadding2 by shooting H-shapedresinous clips5.
The cushionedpadding2 which is supported to the seat backframe3 and thecushion springs4 is covered with a bag-shaped covering member6 (seeFIG. 1) or a bag-shaped coveringmember6′ (seeFIG. 3) having anopening6a′ in a back side thereof, and aback board6b′ covering theopening6a′, whereby an assembly comprising thecushioned padding2 supported to the seat backframe3 and thecushion springs4, and the covering member6 (6′) is assembled. Thus, thenonwoven fabric sheet1 is housed within an interior of the seat back.
As the nonwoven fabric, there may be employ any suitable nonwoven fabric as far as it is capable of absorbing volatile substances caused by the sweat smell of the passenger, the smell of tobacco smoke, the smell of a pet animal, any volatile substances produced from any equipment in the vehicle, and the like. As the nonwoven fabric, there may be employed, for example, an activated carbon fabric. When a sheet of a nonwoven fabric to which a volatile substances-absorbing agent or a deodorant is applied in order that the nonwoven fabric sheet can exert a function of absorbing volatile substances is employed, there is a possibility that the volatile substances-absorbing agent and the deodorant will be peeled off from the nonwoven fabric sheet, resulting in losing the function of the absorbing or deodorizing. In addition, areas of the nonwoven fabric sheet from which the agent or the deodorant is peeled off are left as dirty areas. When the activated carbon fabric sheet is employed as the volatile substances-absorbing means1, such problems do not arise. Therefore, the activated carbon fabric sheet is preferably employed as the volatile substances-absorbing means1. A thickness of the nonwoven fabric sheet is preferably about 0.2-5 mm, and better yet about 0.4-0.6 mm.
In the seat back constructed as discussed above, thenonwoven fabric sheet1 is subjected to the loading imposed by the passenger sitting on the vehicle seat according to the present invention, and is directly affected by air-exhaust and air-suction which are caused by repeated compression and restoration of the cushionedpadding2 when the vehicle employing the seat according to the present invention is traveled and subjected to vibration or the like. Therefore, thenonwoven fabric sheet1 can efficiently absorb and eliminate the volatile substances in the interior of the vehicle.
Moreover, thenonwoven fabric sheet1 can prevent the cushionedpadding2 from being directly contacted with theseat back frame3 and thecushion springs4. Therefore, there is no possibility that noise will be produced by rubbing the cushionedpadding2 against the seat backframe3 and thecushion springs4. In addition, thenonwoven fabric sheet1 is applied onto the back surface of the cushionedpadding2 and housed within the interior of the seat back, so that thenonwoven fabric sheet1 can easily provide the function of absorbing the volatile substances, to the vehicle seat, without modifying structural members of the vehicle seat and changing the appearance of the vehicle seat.
While the embodiment of the present invention has been described in connection with the case where the present invention is applied to the seat back of the vehicle seat, the present invention may be applied to a seat cushion of the vehicle seat. In this case, the volatile substances-absorbingmeans1 is applied to a bottom surface of a cushioned padding for the seat cushion, which faces a seat cushion frame, and fixed onto the bottom surface of the cushioned padding for the seat cushion. Moreover, the volatile substances-absorbingmeans1 may be applied to both the cushioned padding of the seat back and the cushioned padding of the seat cushion. In this case, volatile substances-absorbing area is increased, so that it is possible to more effectively absorb and eliminate the volatile substances in the interior of the vehicle.
These and other advantages of the present invention will be apparent to those skilled in the art from the foregoing specification. Accordingly, it will be recognized by those skilled in the art that changes or modifications may be made to the above-described embodiment without departing from the broad inventive concepts of the invention. It should therefore be understood that this invention is not limited to the particular embodiment described herein, but is intended to include all changes and modifications that are within the scope and spirit of the invention as set forth in the claims.