The present invention relates to an inflatable multilayer textile structure for realizing protective body garments. Protective body garments are known to be used in various fields of human activity and essentially finalized to avoid traumas from impact to the person wearing the same garment. Examples of such garments find application in various sporting activities (motorcycling, nautical, skiing, etc).

A system to realize protective garments, used for a long time, consists in applying to the same garments, in the critical points, a layer of stuffing that absorbs quite completely or partly the impact. This solution considerably modifies the shape of the garment and can be of obstacle to the execution of correct movements by the person wearing it.

To avoid this drawback it has already been proposed to realize the garment with an airtight interspace and to provide it with an inflating apparatus that immediately and automatically activates in case the conditions requiring the activation of the protection system occur. Nevertheless this solution, named "airbag", has not always revealed itself as satisfactory, since its blowing up follows the rules of any body that is inflated and it doesn't allow to create a protective layer of uniform thickness or however of controlled thickness.

According to the invention the problem is solved through an inflatable multilayer textile structure as described in claim 1.

The present invention is further clarified with reference to the enclosed sheets of drawings in which: Figure 1 shows in transversal section a portion of a textile structure according to the invention in a not expanded condition, and Figure 2 shows it in the same view of fig. 1 in an expanded condition,

As can be seen from the drawings, the textile structure according to the invention essentially consists of a multilayer structure comprising two support fabrics 2, connected each other with through a plurality of flexible and substantially inextensible filaments 4, having substantially a constant length. The filaments are applied to the two support fabrics 2 with a technique so called "three-dimensional drop stitch warp knitted fabrics with controlled expansion", for instance of the type developed by the English firm Heatcoat Fabrics Ltd.

The support fabrics 2 may be synthetic or natural, while the filaments 4 may consist of synthetic polyester fibre or other polymeric or natural fibre. The invention also foresees that the support fabrics 2 are substantially waterproof and airtight and this thanks to the application of a impermeabilizing continuous film 6, or applied as a patch, for instance realized in polyurethane, acrylic resin, or in other polymeric resin. This application may occur by transfer joining, continuously or as a patch, by means of thermoplastic or thermosetting synthetic polymers in polyurethane, in acrylic, in polyester or in EVA, or by direct or transfer spreading with various types of polymeric resins, for instance polyurethane, acrylic, polyester, EVA, pvc, in a quantity suitable to confer to the support fabrics the desired airproof and waterproof qualities.

The thermoadhesion of the impermeabilizing film 6 to the support fabrics 2 may preferably be obtained by gluing and polymerization "hot pressed" techniques or with other techniques ("point adhesion" joining or the like), that assure the stable adhesion of the impermeabilizing film 6 to the support fabrics 2.

The textile structure according to the invention, appropriately combined to an inflating system in itself traditional, is applied to the garment that must protect the person wearing it from risks of traumatic impact or it must allow his floating. It may interest the whole garment or only its critical parts.

Particular examples of advantageous uses of the textile structure according to the invention may be suitable in the anti traumas protective garment in the motorcycle sector, in the nautical one, in the skiing, in the parachute and generally in all the sporting, civil, military and professional activities, that involve risks of fall or impact traumas and that require floating and/or thermal insulation characteristics.

However, independently from the particular sector of use, the textile inflatable multilayer structure accord ing to th e invention is highly advantageous in comparison to all the traditional inflatable structures, since it has a minimum encumbrance at rest, that doesn't hinder the free movements of the person wearing the garment, to whom said structure is applied, whereas under conditions of use, that is after it has been inflated, it causes a considerable increase of thickness of the garment quite constant or, however, varying in controlled and set way, assuring a reliable protection and at the same time the maintenance of the shape of the garment itself.