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Outdoor vehicle seat

Outdoor vehicle seat description/claims

The present invention relates to an outdoor vehicle seat, particularly to an outdoor vehicle seat for preventing deterioration due to water penetration.

In the prior art, vehicle seats used outdoors, for motorbikes, personal watercraft and the like, have been subject to wind and rain, or submersion under water, and water may have penetrated into the inside of seats. When water penetrates into the inside of the seat, water is absorbed in its inside cushioning material, the weight of the entire seat increases significantly, deterioration of the cushioning material causes it to lose its soft touch, and the seat functions more poorly, which has been problems in the prior art.

In order to solve these problems, it is known to have a sealing member arranged at a joint portion of a seat surface skin end portion and a bottom plate (for example, see Japanese Unexamined Patent Application Publication No. 9-286364 (“the '364 Publication”)).

In the waterproof structure at the surface skin end portion used in a seat described in the '364 Publication, as shown in FIG. 9, a surface skin end portion 130a of the seat and an elastic sealing member 150 are jointed at a stitched portion 160 by machine-sewing, and the surface skin end portion 130a to which the elastic sealing member 150 is jointed, and a bottom plate 110 on which a cushioning material 120 is arranged, are jointed by a fixing member 140 such as a staple and the like.

Meanwhile, according to the waterproof structure of the surface skin end portion used in the seat described in the '364 Publication, there are cases where water cannot be prevented from penetrating from the portion between the elastic sealing member 150 and the bottom plate. In particular, at the curved portion of the bottom plate, the surface skin end portion is attached having wrinkles due to surface skin surplus, and, as shown in FIG. 10, a gap is formed between the surface skin 130 and the elastic sealing member 150 in some cases. When it rains or the seat is submerged under water, water penetrates from this gap into the inside of the seat, and water cannot be completely prevented from penetrating in the seat inside. As a result, water is absorbed in the cushioning material in the seat inside, and deterioration of the cushioning material leads to declined seat function.

Accordingly, the object of the present invention is to provide an outdoor vehicle seat that prevents water from penetrating from the stitched portion of the surface skin, or the portion between the surface skin end portion and the bottom plate.

In order to achieve the above object, according to one aspect of the present invention, there is provided an outdoor vehicle seat that is formed by arranging a cushioning material on a bottom plate, covering the cushioning material with a surface skin, and fixing a surface skin end portion to the bottom plate, wherein a highly water absorbing, highly moisture absorbing, and highly expanding member is arranged between the surface skin end portion and the bottom plate.

Thus, in the outdoor vehicle seat according to an embodiment of the present invention, where the highly water absorbing, highly moisture absorbing, and highly expanding member is arranged between the surface skin end portion and the bottom plate, it is possible to rapidly absorb water penetrating from the gap between the surface skin end portion and the bottom plate, seal up the gap completely by the expansion thereof, and prevent water from penetrating into the seat inside.

Accordingly, it is possible to prevent the seat function from declining due to the deterioration of the cushioning material by water penetration into the seat inside.

Further, it is preferable that in the bottom plate, an expanding member containing portion for arranging the highly water absorbing, highly moisture absorbing, and highly expanding member is formed at the portion to contact the surface skin end portion of the back side.

Thus, by forming the expanding member containing portion in the bottom plate, it is possible to secure the place to contain the expanding member and position and fix it, and thereby it is possible to improve the workability in manufacture processes.

In order to achieve the above object, according to another aspect of the present invention, there is provided an outdoor vehicle seat that is formed by arranging a cushioning material on a bottom plate, covering the cushioning material with a surface skin, and fixing a surface skin end portion to the bottom plate, wherein the surface skin includes a covering surface skin for covering the cushioning material, a jointing surface skin for structuring the surface skin end portion to be fixed to the bottom plate, a stitched portion to sew together the covering surface skin and the jointing surface skin, and a highly water absorbing, highly moisture absorbing, and highly expanding member is arranged between the covering end portion and the jointing end portion, in the stitched portion.

Thus, in the outdoor vehicle seat according to an embodiment of the present invention, where the highly water absorbing, highly moisture absorbing, and highly expanding member is arranged between the covering end portion and the jointing end portion of stitched portion, it is possible to rapidly absorb water penetrating from the stitched portion, and seal off further penetration of water completely, by the expansion thereof, and prevent water from penetrating into the seat inside. Accordingly, it is possible to prevent the seat function from declining due to the deterioration of the cushioning material by water penetration into the seat inside.

Furthermore, it is preferable that the highly water absorbing, highly moisture absorbing, and highly expanding member has airspaces. Thus, when the expanding member has airspaces, it is possible to absorb an expansion amount accompanying expansion by the airspaces, prevent the expanding member from coming out from the stitched portion, and prevent the fixing member and the like from dropping down or the sewed portion from being damaged in end processed portion and sewed portion, which is caused by expansion of the expanding member.

Moreover, it is preferable that the highly water absorbing, highly moisture absorbing, and highly expanding member includes at least highly water absorbing, highly moisture absorbing, and highly expanding fibers that are fibers of a highly water absorbing, highly moisture absorbing, and highly expanding material.

Thus, by using fibers of a highly water absorbing, highly moisture absorbing, and highly expanding material, it is possible to join the fibers to base fibers and easily process the fibers into shapes according to applications of the vehicle seat.

Further, it is preferable that the highly water absorbing, highly moisture absorbing, and highly expanding member is made of powders of a highly water absorbing, highly moisture absorbing, and highly expanding material packaged by nonwoven cloth or coarse wool cloth.

Thus, by packaging powders of a highly water absorbing, highly moisture absorbing, and highly expanding material by nonwoven cloth or coarse wool cloth, it is possible to hold the powdered highly water absorbing, highly moisture absorbing, and highly expanding material without leakage. Further, in comparison with the case where highly water absorbing, highly moisture absorbing, and highly expanding fibers are combined with base fibers with a binder and the like, the powdered material can be used without a special process, and accordingly it is possible to reduce the number of processes.

Furthermore, it is preferable that the highly water absorbing, highly moisture absorbing, and highly expanding material is made of bridged polyacryl acid sodium salt.

Thus, by using bridged polyacryl acid sodium salt, it is possible, by its high water absorbing, highly moisture absorbing, and highly expanding property, to absorb water further more rapidly, seal up the gap completely by the expansion thereof, and prevent water from further penetrating into the seat inside.

Thus, in the outdoor vehicle seat according to an embodiment of the present invention, where the highly water absorbing, highly moisture absorbing, and highly expanding member is arranged between the surface skin end portion and the bottom plate, or between the covering surface skin and the jointing surface skin, it is possible to rapidly absorb water penetrating inside, and seal up the gap completely by the expansion thereof, and prevent water from penetrating into the seat inside. Accordingly, it is possible to prevent the seat function from declining due to the deterioration of the cushioning material by water penetration into the seat inside.

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• Utility Patent

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