US20120032422A1 - Protection device including an inflatable member - Google Patents

Protection device including an inflatable member Download PDF

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Publication number
US20120032422A1
US20120032422A1 US13/133,524 US200913133524A US2012032422A1 US 20120032422 A1 US20120032422 A1 US 20120032422A1 US 200913133524 A US200913133524 A US 200913133524A US 2012032422 A1 US2012032422 A1 US 2012032422A1
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US
United States
Prior art keywords
mesh
protection device
seam
inflatable member
wall
Prior art date
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Abandoned
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US13/133,524
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English (en)
Inventor
Lino Dainese
Luigi Ronco
Andrea Azzolin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dainese SpA
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Dainese SpA
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Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=41716628&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=US20120032422(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from ITRM2008A000656A external-priority patent/IT1392306B1/it
Priority claimed from ITVR2009A000078A external-priority patent/IT1394657B1/it
Application filed by Dainese SpA filed Critical Dainese SpA
Assigned to DAINESE S.P.A. reassignment DAINESE S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: DAINESE, LINO, RONCO, LUIGI, AZZOLIN, ANDREA
Publication of US20120032422A1 publication Critical patent/US20120032422A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/015—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with shock-absorbing means
    • A41D13/018—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches with shock-absorbing means inflatable automatically
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J27/00—Safety equipment
    • B62J27/20—Airbags specially adapted for motorcycles or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/23—Inflatable members
    • B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
    • B60R21/2334—Expansion control features
    • B60R21/2338—Tethers
    • B60R2021/23382—Internal tether means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S2/00—Apparel
    • Y10S2/03—Inflatable garment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Definitions

  • the present disclosure relates to a protection device suitable for use on a user and/or with a vehicle so as to protect the user or a passenger of the vehicle from impacts against a solid body and/or against the vehicle or portions of the vehicle, for example in the event of an accident.
  • a protection device including an inflatable member or inflatable bag which, in the rest condition, is arranged deflated and folded inside a housing within the user's garment and/or in a housing situated within the vehicle opposite parts of the user's body and/or in parts of the vehicle which may be potentially affected by impacts, i.e. against which the user may come into contact in the event in an accident.
  • the inflatable bag is moreover placed in fluid communication, during an impact, sliding or an accident in general, with a compressed-gas source, such as a canister.
  • a compressed-gas source such as a canister.
  • the gas source is able to introduce into the inflatable bag a predefined quantity of compressed gas such as to inflate, and therefore tension, the inflatable member so as to form an inflated, round-shaped, balloon-like casing. Therefore, the quantity of gas introduced is strictly related to the volume of the inflatable bag so as to ensure satisfactory inflation and effective protection.
  • these bags in the inflated condition, form a kind of balloon which is somewhat voluminous and has a large cross-section, said balloon being arranged in the inflated condition between the user and the portion of the vehicle or solid object in general.
  • One drawback of the known inflatable bags consist in the fact that there is a limited possibility of adapting the shape of the inflatable bag to the anatomy of a user's body or to the configuration of a zone in the vehicle with which the inflatable bag is associated.
  • a drawback of the known inflatable bag is that it cannot be very easily adapted to the zone of the vehicle in which it is arranged or to the part of a user's body on which it is used.
  • this kind of inflated balloon is conveniently arranged in each zone of the user's body and of the vehicle in question.
  • This requirement involves the need for a large number of inflatable bags and a large number of compressed-gas or, more generally, pressurised-fluid sources.
  • a technical problem forming the basis of the present disclosure consists in providing a protection device which is able to overcome said drawback and/or which is able to achieve further advantages.
  • cloth is understood in the context of the present disclosure as meaning a porous patch or piece of cloth which has a mesh-like appearance.
  • wall or “sheet” is understood in the context of the present disclosure as meaning a covering member for a respective mesh, where the first and second walls are associated with each other so as to define an internal chamber inside which the first and second meshes and the tie members connecting together the first and second meshes are arranged.
  • titanium member is understood as meaning a part or object which has the function of keeping joined together or fastened or immobile, while being subject to a tensile stress, two or more facing parts of the inflatable member, and in particular the meshes, when the inflatable member is in the inflated condition.
  • a first advantage consists in the fact that the inflatable member may be folded to form an angle in the region of at least one seam and may keep the fold also in the inflated condition. Basically, the seam limits locally expansion of the inflatable member and allows folding of the inflatable member in the zone where expansion is limited.
  • the seam joins together the two opposite meshes, without however stitching together the respective walls or sheets, there is no risk of the inflating fluid passing through the walls and affecting the possibility of keeping the inflatable member inflated.
  • the seam includes 2 to 3 stitches per centimetre (namely it has a stitching interval of between about 3 and 5 mm).
  • Another advantage consists in the use of tie members which connect together the two meshes.
  • the advantage consists in the fact that the inflatable member may be made in any form and size, it being sufficient to arrange the structure including the two meshes inside the internal chamber, adjusting beforehand the length of the tie members between the two meshes so that the tie members are in the fully tensioned and/or fully extended condition when the inflatable member is inflated.
  • the shape and size of the inflatable member may be controlled and determined beforehand since the maximum expansion of the inflatable member and its local thickness can be controlled by means of a suitable choice of the length and maximum extension of the tie members.
  • the structure or body including the two meshes with the tie members, forming one or more seams in the region of the folding zones and, where necessary, providing different lengths for the tie members depending on their location inside the internal chamber, it is possible to determine beforehand the shape assumed by the inflatable member in the inflated condition (both in terms of the distance between the two meshes and in terms of the perimetral form of the two meshes) and also as regards folding of the inflatable member.
  • the inflatable member may be designed so as to surround, with suitable folds, at least partly the user and/or be arranged around the user in an inflated condition.
  • the protection device in question is therefore essentially a protection device which can be worn.
  • the protection device may be folded in the region of an elbow or shoulder of the user.
  • the inflatable member may be arranged folded to form an angle between a side wall and the roof of the passenger compartment or inserted along the sides of a head-rest so as to protect the users head laterally or inserted along the sides of a seat or underneath the dashboard or the steering wheel so as to protect the trunk, legs and knees of the user.
  • the inflatable member may be arranged on the handlebars of the motorcycle so that, when inflated, it remains folded around the motorcycle handlebars, adapting substantially to the form of the latter.
  • the inflatable member according to the present disclosure since it may be provided with a folded form even in the inflated condition, can be easily arranged also in areas where airbags according to the prior art cannot be positioned or where they do not function effectively.
  • Another advantage consists in the fact that at least one seam may be provided in a zone where there is a high through-flow of inflating fluid.
  • the seam occupies a restricted zone of the meshes so as to leave the adjacent zones free for the fluid to pass through.
  • the inflatable member may be folded several times onto itself (for example including a series of successive folds) so as to form a layered structure.
  • the inflatable member prefferably designed so that it has a three-dimensional form in the inflated condition; for example it is possible to provide a cube-shaped form or similar three-dimensional body.
  • each mesh is glued with a layer of adhesive to the respective wall so that this layer of glue also covers the seam.
  • the seam forms a closed line, i.e. it preferably forms a closed loop, for example in the form of a rectangle.
  • the closed-loop seam has terminal portions which intersect each other. Basically, the terminal portions of the closed loop intersect and are superimposed only at the intersection.
  • the seam will have a greater thickness only at the intersection, while the rest of the seam has only a limited thickness.
  • the terminal portions of the seam intersect towards the inside and therefore have free ends arranged inside the closed loop. The free ends are essentially protected inside the closed loop.
  • the device also comprises a reinforcing element associated with a respective surface portion of the meshes and superimposed on said at least one seam.
  • the reinforcing element is arranged between a mesh and the respective wall.
  • This reinforcing element is able to encapsulate and isolate the seam from the corresponding wall so as to ensure that the inflating fluid passes between a mesh and the respective wall, causing the undesirable formation of bubbles on the outer surface of the inflatable member.
  • this reinforcing element allows the seam to be protected from the stresses produced by the pressure of the fluid.
  • the reinforcing element is tensioned by the inflatable member itself and therefore has a more rigid behaviour than in the deflated condition, thereby making the seam stronger.
  • the presence of the reinforcing element is advantageous since it allows an increase in the resistance to penetration: a concentrated force (for example due to an impact against a sharp object) in the region of the seam is redistributed by the reinforcing element over a broader area of the inflatable member.
  • the device comprises a pair of reinforcing elements, each one on a respective mesh, so as to protect the seam on both sides.
  • the reinforcing element is a sheet-like part made of impermeable material and arranged in the manner of a patch over the seam; for example the reinforcing element is a polyurethane sheet which is also flexible and therefore does not constitute an obstacle for handling of the protection device.
  • the protection device comprises at least two seams arranged alongside each other, a fold being provided along each seam.
  • the use of two seams is advantageous for forming substantially parallel consecutive folds which allow relative displacement of two adjacent portions of an inflatable member at an angle greater than 90° relative to a coplanar condition. In this case, in fact, owing to these folds there would otherwise be the risk of the adjacent portions of the inflatable member in the inflated condition interfering with each other and preventing folding.
  • the distance between said two seams arranged alongside each other is at least equal to the length of the tie members which connect the meshes.
  • FIG. 1 shows a transversely sectioned side view of a protection device according to the present disclosure, in a folded condition
  • FIG. 2 shows a perspective view of a portion of a protection device according to the present disclosure, during a first processing step
  • FIG. 3 shows a perspective view of a portion of a protection device according to the present disclosure, during a second processing step
  • FIG. 4 shows a perspective view of a portion of a protection device according to the present disclosure, during a third processing step
  • FIG. 5 shows a side view of a portion of a protection device according to the present disclosure, during a fourth processing step
  • FIG. 6 shows a cross-sectional view of a detail VI of FIG. 4 ;
  • FIG. 7 shows a view of a detail VII of FIG. 4 ;
  • FIG. 8 shows a view of a detail VIII of FIG. 1 ;
  • FIG. 9 shows a view of a detail IX of FIG. 1 ;
  • FIG. 10 shows a perspective, on a larger scale, of a portion of a protection device according to the present disclosure, during a processing step
  • FIG. 10A shows a transversely sectioned side view of a protection device according to the present disclosure, in a folded condition
  • FIG. 11 shows a view from above of a protection device according to the present disclosure, in a deflated condition, and partly cross-sectioned;
  • FIG. 12 shows a view of a detail XII of FIG. 11 , on a larger scale
  • FIG. 13 shows a view of a detail XIII of FIG. 11 , on a larger scale
  • FIG. 14 shows a view of a detail XIV of FIG. 11 , on a larger scale
  • FIG. 15 shows a perspective and partly sectioned view of a device according to the present disclosure
  • FIG. 16 shows a view of a detail XVI according to FIG. 15 during a processing step
  • FIG. 17 shows a view of a detail XVII according to FIG. 15 ;
  • FIG. 18 shows a view of a detail XVIII according to FIG. 15 ;
  • FIG. 19 shows another embodiment of a protection device according to the present disclosure in an inflated condition
  • FIG. 20 shows a sectional view along the line XX-XX of FIG. 19 ;
  • FIG. 21 shows a front view of a vehicle including a protection device contained inside a respective housing and in a deflated condition;
  • FIG. 22 shows a front view of the vehicle according to FIG. 21 , in which the protection device is in an inflated condition.
  • the reference number 1 denotes a first embodiment of a protection device according to the present disclosure.
  • the protection device 1 comprises an inflatable member 2 which can be inflated by means of a fluid, for example a pressurised cold gas such as helium.
  • a fluid for example a pressurised cold gas such as helium.
  • the inflatable member 2 is of the multilayer type and includes two oppositely arranged walls 7 , 8 which in the example are made of material which is impermeable to said gas and are joined together, in the example fixed in a gas-type manner, so as to form an internal chamber 9 enclosed between the said walls 7 , 8 .
  • the inflatable member 2 also includes a so-called double-layer structure—denoted by the reference number 5 in FIGS. 2 , 3 and 4 —which is housed inside the chamber 9 .
  • the structure 5 includes two meshes 10 , 11 basically forming two layers arranged opposite each other and connected together by means of a plurality of tie members 12 which in the example are flexible tie members with a thread-like form.
  • the two walls 7 , 8 form a casing housing internally the structure 5 which includes the two meshes 10 , 11 and the tie members 12 .
  • each mesh 10 , 11 is joined so as to adhere to the respective wall 7 , 8 , on the internal chamber 9 side, using a glue or similar fixing system.
  • the protection device 1 includes at least one first seam 3 which connects and joins together in direct contact the two meshes 10 , 11 of the inflatable member 2 , defining a reduced thickness of the inflatable member 2 in this zone, when inflated.
  • This seam 3 is associated with a folding zone P of the inflatable member 2 , as can be seen in FIG. 1 , i.e. is formed in a folding zone P.
  • the stitching thread C passes through the opposite surface portions of the meshes 10 , 11 ; in particular, the stitching thread C (made of polyamide) passes consecutively above and below the opposite surface portions, respectively, of the meshes 10 , 11 .
  • the seam in the example in question consists of a linear seam with 2 to 3 stitches per centimetre.
  • the seam 3 is intended to stitch together and connect transversely only the two meshes 10 , 11 , producing a localised compression of the tie members 12 ( FIG. 6 ), without however affecting the walls 7 , 8 to which the meshes 10 , 11 are glued in an adhering manner. Therefore, in the folding zone P, the inflatable member 2 does not inflate, or in any case inflates only to a limited degree, and folding at an angle is made possible and facilitated owing to the limited thickness. At the same time, diffusion or flowing of the gas inside the inflatable member 2 is permitted.
  • the seam 3 occupies preferably a confined zone of the structure 5 , so as to leave side zones 26 free for passage of the inflating fluid, alongside the seam 3 .
  • the first seams 3 allow an inflatable member 2 to be folded along the folding zone P, i.e. allow the parts 2 a , 2 b of the inflatable member 2 to rotate relative to each other about an axis of rotation, even when the inflatable member 2 is an inflated condition and without hindering the passage of the inflating fluid.
  • the stability of the fold P in the inflated condition is also ensured by the presence of the tie members 12 which impart a certain robustness to the whole of the inflatable member 2 .
  • the tie members 12 have a thread-like form and consist of flexible and inextensible members. Therefore, they are suitably designed with dimensions such that, when the inflatable member 2 is in the rest condition, they are preferably untensioned and collapsed inside the internal chamber 9 , whereas, when the inflatable member 2 is in the inflated condition, they are under tension, except for example for the zones where the seam 3 is situated.
  • the tie members 12 are distributed densely within the inflatable member 2 , for example with a density of at least one tie member 12 per cm 2 of surface area of the inflatable member 2 , even more preferably, still by way of example, with a density of between 1 and 15 threads per cm 2 of surface area of the inflatable member 2 , and preferably between 4 and 6 threads per cm 2 .
  • tie members 12 are distributed in a substantially homogeneous manner inside the internal chamber 9 , i.e. their superficial density is substantially the same throughout the inflatable member 2 .
  • the tie members 12 are for example polyester or polyamide threads with a thickness of between about 500 and about 1000 decitex (unit of length of a continuous thread or yarn) and have ends 12 a , 12 b which are fixed to the respective portions of the meshes 10 , 11 which they connect together.
  • each thread 12 includes a bundle of untwisted continuous fibres which protrude from a single point on the respective mesh 10 , 11 .
  • each mesh 10 , 11 has an extension such that it lines almost entirely a respective wall 7 , 8 . Even more particularly, each mesh 10 , 11 is fixed stably to the surface of the respective wall 7 , 8 by means of a film of glue (indicated, for example, by the number 30 , 31 in FIG. 4 ).
  • the inflatable member 2 comprises a prefabricated textile structure 5 including the two meshes 10 , 11 and the tie members 12 and also comprises two walls 7 , 8 or sheets which in the example are gas-tight, are fixed perimetrally to each other and receive the textile structure 5 ; the two walls 7 , 8 are each arranged so as to adhere to the respective mesh 10 , 11 .
  • the walls of 7 , 8 are made of polyamide or polyurethane.
  • the walls 7 , 8 are made of a laminate comprising a layer of fabric 7 a , in the example a layer of 100% nylon (which constitutes about 65% by weight of the laminate), and a layer of glue 7 b , in the example a film of glue (which constitutes about 35% by weight of the laminate), for example polyurethane glue, which is distributed over the fabric layer 7 a by means of spreading with a roller ( FIG. 7 ).
  • the abovementioned film of glue 30 , 31 is arranged in contact with the layer of glue 7 b of the laminate.
  • the tie members 12 Fixing of the tie members 12 to the meshes 10 , 11 at the opposite ends 12 a , 12 b of the tie members 12 themselves is, for example, achieved by means of simple insertion or interweaving of the tie members 12 between the wefts of the meshes 10 , 11 .
  • the tie members 12 are formed by means of a given number of threads which are fixed to one mesh 10 and in succession to the other mesh 11 by means of interweaving, or by means of tying or similar fixing systems.
  • each tie member 12 is a thread integrally interlaced with or extending continuously from both said first and second meshes 10 , 11 .
  • the thread/tie member 12 extends from one of said first and second meshes 10 , 11 and is integrally interlaced with the other one of said first and second meshes 10 , 11 .
  • the assembly composed of the two meshes 10 and 11 and the tie members 12 form a so-called three-dimensional or double-knit fabric.
  • the meshes 10 and 11 are made of polyester or polyamide.
  • the protection device 1 according to the present disclosure, as described above, is manufactured in the manner indicated below.
  • the structure 5 is shown with the tie members 12 partly tensioned. It is, however, to be understood that the seams 3 are formed with the meshes 10 , 11 adhering as close as possible to each other and with the tie members 12 collapsed between the meshes 10 , 11 .
  • a pair of meshes 10 , 11 are arranged facing each other at a predefined distance and ends 12 a , 12 b of the tie members 12 are tied or fixed in some other way to them, the length of said tie members 12 being chosen so as to define a maximum relative distance between the meshes 10 , 11 corresponding to maximum local expansion of the inflatable member 2 in the inflated condition.
  • the structure 5 including the meshes 10 , 11 and the tie members 12 undergoes stitching or seaming.
  • the stitching steps are indicated by way of example in the form of needles 35 , 36 , 37 .
  • At least one seam 3 is formed in a central zone of the inflatable member 2 intended to be used for the folding zone P and also preferably a perimetral seam 40 is formed along the perimeter 42 of said meshes 10 , 11 .
  • the structure 5 is included between two films of glue 30 , 31 and between the two walls 7 , 8 as can be seen in FIG. 4 .
  • the two walls 7 , 8 have perimetral portions 23 , 24 which project relative to the entire perimeter 42 of the meshes 10 , 11 .
  • the two walls at 7 , 8 have a superficial extension greater than that of the respective meshes 10 , 11 .
  • each wall 7 , 8 is joined beforehand together with the respective film of glue 30 , 31 and is in turn glued, by means of a hot press 25 , to the respective mesh 10 , 11 of the structure 5 ( FIG. 5 ). Consequently each mesh 10 , 11 lines and adheres to the respective walls 7 , 8 , leaving free perimetral portions 23 , 24 of the walls 7 , 8 which are glued directly together.
  • the seam 3 allows, on the one hand, easier folding of the inflatable member 2 even when it is inflated, since it reduces to a minimum the thickness of the inflatable member 2 in the folding zone P, and at the same time does not hinder inflation of the walls 7 , 8 .
  • the perimetral seam 40 is intended to increase the strength of the inflatable member 2 when the latter is inflated, preventing overloading and tearing of the walls 7 , 8 along the edges 23 , 24 .
  • the double-layer structure 5 includes, instead of the linear seam 3 described above, a seam 300 which follows a closed line, i.e. having the form of a closed loop, in the example a closed polygonal line.
  • the seam 300 includes a substantially rectangular portion 103 and terminal portions 203 , 303 which intersect each other. Even more particularly, said terminal portions 203 , 303 intersect each other so that the free ends 203 a , 303 a of said terminal portions 203 , 303 are arranged inside the closed loop.
  • the seam 300 has free ends 203 a , 303 a which are protected by the seam itself since they are situated in a region which, precisely because of the close-loop seam 300 which encloses them, is stressed much less than the remaining parts of the seam 300 .
  • the single intersection of the terminal portions 203 , 303 avoids excessive and repeated overlapping of seam portions which could otherwise result in excessive thickening and hinder adhesion of the meshes 10 , 11 to the respective wall 7 , 8 .
  • the arrangement of the free ends 203 a , 303 a inside the closed loop has the effect that the free ends 203 a , 303 a of the seam 300 are not directly exposed to the fluid which passes through there.
  • the seam 300 joining together the meshes 10 , 11 is formed in a manner substantially similar to that used for the preceding embodiment, using the same processing steps illustrated in FIGS. 2 , 3 , 4 and 5 .
  • two closed-loop seams 300 are formed so that each fold P′ is performed substantially along a line which extends passing through each of the seams 300 .
  • the use of two seams 300 arranged alongside each other is advantageous for forming folds P′ where the relative displacement A of two adjacent parts 2 a , 2 b of the inflatable member 2 is greater than 90° with respect to a coplanar condition, as shown in FIG. 10A .
  • the distance between said two seams 300 is at least equal to the length of the tie members which connect together the meshes 10 , 11 .
  • the protection device 100 includes an inflatable member 200 intended to protect the upper portion of the body of a user and produced by means of the processing steps previously described.
  • the inflatable member 200 includes a central part 102 having the form of an open ring and intended to be positioned around the neck of the user; the inflatable member 200 also includes two front lateral appendages 202 , 302 which are intended to be placed over the shoulders, two rear lateral appendages 402 , 502 which are intended to be positioned over the shoulder blades, and a rear central appendage 602 intended to be positioned over the spine.
  • the central part 103 and the appendages 202 , 302 , 402 , 502 , 602 communicate pneumatically with each other and are formed by means of the textile structure 5 and the walls 7 , 8 .
  • a cold-helium canister 20 is connected in fluid communication, via a pipe 21 , with the rear central appendage 602 of the inflatable member 200 .
  • each of the front lateral appendages 202 , 203 is folded slightly relative to the central part 102 in accordance with the inclined anatomical form of a user's shoulders.
  • the inflatable member 200 comprises a plurality of seams 300 which are formed as a closed loop, are exposed to the flow of the fluid F and are intended to retain relative to each other the opposite surface portions of the abovementioned meshes 10 , 11 of the inflatable member 200 so as to limit in a localised manner expansion of the inflatable member 200 and thus allow easy folding.
  • the inflatable member 200 includes six seams 300 arranged in pairs in zones where the central part 102 and the lateral rear appendages 402 , 502 and the rear central appendage 602 are connected together. Respective folding of the inflatable member 200 is performed in the region of each pair of seams 300 . More particularly, along the pairs of seams 300 provided between the central part 102 and each of the lateral rear appendages 402 , 502 , it is possible to form a fold substantially at an angle of 180° with complete overlapping of each lateral rear appendage 402 , 502 onto a respective portion of the central part 102 . A layered arrangement of the inflatable member 200 is therefore obtained.
  • the inflatable member 200 also includes two secondary seams 400 which are also formed in the manner of the seams 3 , 300 , i.e. which join together opposite portions of the meshes 10 , 11 .
  • the secondary seams 400 are intended to laterally retain a gas generator 20 which may be positioned inside the rear central appendage 602 of the inflatable member 200 , thus creating a housing inside which the gas generator 20 is received with a limited degree of lateral clearance.
  • Each secondary seam 400 has an elongated form and includes a straight section 204 and a curved section 104 .
  • the curved section 104 is folded substantially so as to form an elbow relative to said straight section 204 .
  • the straight section 204 is formed as an extension of the perimetral seam 40 .
  • the curved section 104 comprises a terminal portion 105 , which extends towards the respective side of the perimeter 42 of the meshes 10 , 11 so that a free end 105 a of secondary seam 400 is positioned between the respective straight section 204 and the perimetral seam 40 of which it forms an extension.
  • the inflatable member 200 includes incisions 22 formed along the perimeter and having a V shape with the concavity directed towards the respective lateral rear appendage 402 , 502 .
  • the incisions 22 are positioned between each of the front lateral appendages 202 , 203 and the central part 102 .
  • the protection device 100 comprises a plurality of reinforcing elements 50 , 52 , 54 (see FIGS. 15 to 18 ), each of which is able to be fixed to the inflatable member 200 along respective seams and preferably over closed-loop seams 300 , secondary seams 400 and some sections of the perimetral seam 40 .
  • the protection device 1 comprises twelve substantially oval-shaped reinforcing elements 50 , six of which are visible in FIG. 15 , each of them being fixed along a respective annular seam 300 , directly on the mesh 10 and on the mesh 11 .
  • a pair of rectangular-shaped reinforcing elements 54 are fixed on the rear central seam 602 of the inflatable member 200 and partly cover both the two secondary seams 400 , directly on the mesh 10 and on the mesh 11 , leaving the straight section 204 of each secondary seam 400 exposed ( FIG. 18 ).
  • reinforcing elements 52 are furthermore provided along a portion of the perimetral seam 40 , in particular where the central part 102 of the inflatable member 200 is connected to the lateral front appendages 202 , 302 , in particular opposite the abovementioned V-shaped incision 22 on either side of the inflatable member 200 .
  • Each of said reinforcing elements 50 , 52 , 54 in the example is formed by a sheet or foil of flexible composite material (for example polyurethane-based carbon or fibreglass) with a thickness of a few millimetres (for example 2 mm) and a surface area comparable to the area of the seam to be protected.
  • the reinforcing elements 50 , 52 , 54 are fixed beforehand, for example using a polyurethane glue as illustrated in FIG. 16 , to the mesh 10 and to the mesh 11 , respectively, of the structure 5 before including and the fixing in an adhering manner the structure 5 between the two walls 7 , 8 .
  • Each reinforcing element 50 , 52 , 54 is therefore positioned between the mesh 10 , 11 and the respective wall 7 , 8 .
  • reinforcing elements 50 , 52 , 54 impart greater stability to the closed-loop seams 300 , the secondary seams 400 and the perimetral seam 40 of the inflatable member 200 when acted on by the pressurised gas. Moreover, these reinforcing elements 50 , 52 , 54 ensure greater insulation of the seams 300 , 400 and 40 and favour perfect adhesion of the walls 7 , 8 to respective meshes 10 , 11 .
  • FIG. 19 a further example of a protection device according to the present disclosure is illustrated, being indicated by the reference number 110 .
  • parts which have the same function and structure retain the same reference number as in the embodiments previously described and therefore are not described again in detail.
  • the protection device 110 has a bib-like form and comprises a pair of inflatable members 210 , 211 intended to be positioned respectively over the chest and the back of a user; said inflatable members 210 , 211 are connected together by means of a substantially toroidal member 212 , or collar, which can also be inflated and communicates pneumatically with the inflatable members 210 and 211 .
  • the inflatable members 210 , 211 , 212 define a single inflatable bag 205 .
  • the member 212 defines a central region 213 , or cavity, intended to receive a user's neck around which the inflatable toroidal member 212 is arranged.
  • This toroidal member 212 is in the form of an open ring and has in fact an opening 214 allowing the user to easily insert his/her head (and therefore neck) into the central region 213 .
  • this open ring allows the device 110 to be incorporated into a garment, for example a motorcyclist's jacket or riding suit, which comprises means for opening/closing the garment (for example a zip fastener) along the user's chest; this is achieved by arranging said opening/closing means so that they extend along the opening 214 and an adjacent edge of the inflatable member 210 .
  • Each inflatable member 210 , 211 , 212 is defined by opposite walls (only one wall 115 of which is visible) facing each other; the walls are, for example, made of the same material as the aforementioned walls 7 , 8 and therefore made of a sheet of soft and gas-tight material, for example polyurethane or polyamide, or the aforementioned laminate.
  • the walls adhere to each other and are sealed along the perimetral edges 120 of the inflatable members 210 , 211 , 212 .
  • the inflatable members 210 , 211 , 212 are defined by two walls, or sheets, which are suitably shaped, arranged on top of each other and joined together along the entire perimetral edge 120 .
  • Each inflatable member 210 , 211 , 212 has defined internally, between the two walls, an internal chamber 9 in particular comprising the already mentioned pair of meshes 10 , 11 , each associated with or fixed/glued to a respective wall.
  • this is obtained by providing portions 225 of the inflatable bag 205 which are aligned along said axis of rotation 218 and where the opposite meshes 10 , 11 are stitched together or in any case joined together so as to limit or prevent their relative displacement (as shown in FIG. 20 ). Free portions 226 are defined between the stitched portions 225 and allow the inflatable bag 205 to expand.
  • the thickness of the inflatable bag 205 is limited in the inflated condition and therefore folding along the said axis 218 as well as rotation of the inflatable members 211 , 212 relative to each other are favoured; at the same time, the free portions 226 allow pneumatic communication to be maintained between the inflatable members 211 , 212 ahead of and after the axis 218 .
  • a further example of a protection device according to the present disclosure is illustrated, being indicated by the reference number 1110 .
  • the protection device 1110 is intended for a motor vehicle 1000 and is arranged inside a housing 1004 between the roof and the side wall of the passenger/driver compartment inside the vehicle 1000 .
  • the protection device 1100 when inflated, spreads outwards, being arranged along the roof and along the door side of the vehicle 1000 .
  • the protection device 1110 is made using the processing steps described above with reference to FIGS. 2 to 5 and includes a central folding zone P obtained by means of stitching of meshes (not visible in the figures).
  • the stitching allows the protection device 1110 for the vehicle 1000 to be folded between the roof and the side wall of the passenger compartment and moreover to remain folded also in the inflated condition.
  • the protection device in any one of its embodiments, in the event of an accident and/or fall and/or sliding and/or impact on the part of a user or a vehicle being travelled in, the protection device according to the present disclosure is able to cooperate with special activation and inflation means, of which a helium canister (cold gas generator) is shown solely by way of example in the figures, being arranged for example on the outside of the inflatable member.
  • a helium canister cold gas generator
  • these means may comprise gas generators of the pyrotechnic or hybrid type or other types known according to the present art.
  • Said inflation means are operated by a control unit by means of sensing of the state of the vehicle/user system; for example, in the case of a motorcycle, said control unit may activate a fall prediction system which allows timely identification of the fall and reliable prediction thereof by means of speed sensors integral with the vehicle (or the user) and a unit for processing the signals generated by the said sensors.
  • the protection device according to the present disclosure can also be applied using an actuating cable connected to the motorcycle, which cable triggers inflation of the inflatable member following separation of the user from the vehicle, for example following a fall or an impact.
  • the aforementioned activation and inflation means may be incorporated in the protection device or may be located on the outside thereof.
  • the inflation means are operated by a control unit by means of sensing of the state of movement and deceleration of the motor vehicle, for example using the techniques already used for activation of airbags of the prior art.
  • the protection device optionally comprises an deflation valve (not shown in the drawings) communicating, on one side, with the internal chamber and, on the other side, with the external environment so as to allow deflation of the inflatable member following activation and when a protective action is no longer required.
  • an deflation valve (not shown in the drawings) communicating, on one side, with the internal chamber and, on the other side, with the external environment so as to allow deflation of the inflatable member following activation and when a protective action is no longer required.
  • This deflation valve which is normally in a closed position, is for example manually opened by the user, in particular when, as a result of accidental activation or following an impact causing activation of the device, the user wishes to continue using the vehicle. Opening of the deflation valve in fact has the effect that, owing to the difference in pressure between the inflated member and external environment, the gas flows out of the internal chamber and the inflatable member deflates.
  • activation of the deflation valve may be controlled by an electronic control unit (not shown) which opens the deflation valve after lapsing of a predefined time interval (for example 15 seconds) following activation of the inflation means.
  • a deflation pipe having a diameter which is predefined depending on the required deflation time is used instead of the deflation valve.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Textile Engineering (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Air Bags (AREA)
US13/133,524 2008-12-09 2009-12-04 Protection device including an inflatable member Abandoned US20120032422A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
ITRM2008A000656 2008-12-09
ITRM2008A000656A IT1392306B1 (it) 2008-12-09 2008-12-09 Dispositivo di protezione personale ed indumento incorporante tale dispositivo.
ITVR2009A000078 2009-05-29
ITVR2009A000078A IT1394657B1 (it) 2009-05-29 2009-05-29 Dispositivo di protezione includente un elemento gonfiabile.
PCT/IT2009/000547 WO2010067393A1 (en) 2008-12-09 2009-12-04 Protection device including an inflatable member

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US20120032422A1 true US20120032422A1 (en) 2012-02-09

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US13/133,524 Abandoned US20120032422A1 (en) 2008-12-09 2009-12-04 Protection device including an inflatable member
US13/133,437 Active US8608191B2 (en) 2008-12-09 2009-12-04 Protection device including an inflatable member
US13/133,473 Active 2032-04-07 US9027170B2 (en) 2008-12-09 2009-12-04 Personal protection device and garment incorporating said device

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US13/133,473 Active 2032-04-07 US9027170B2 (en) 2008-12-09 2009-12-04 Personal protection device and garment incorporating said device

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US (3) US20120032422A1 (ja)
EP (3) EP2373189B2 (ja)
JP (3) JP5841843B2 (ja)
ES (3) ES2388411T3 (ja)
WO (3) WO2010067285A1 (ja)

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US20120007344A1 (en) 2012-01-12
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US20120011642A1 (en) 2012-01-19
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US9027170B2 (en) 2015-05-12
US8608191B2 (en) 2013-12-17
WO2010067288A1 (en) 2010-06-17
ES2390647T3 (es) 2012-11-15
EP2373190A1 (en) 2011-10-12
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EP2373190B1 (en) 2012-05-30
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EP2373189B1 (en) 2012-07-04
WO2010067393A1 (en) 2010-06-17

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