Airbag arrangement for a cervical collar

Abstract

The invention relates to an airbag device (300) for a neck rest (N) or a seat cushion support (C) of a seat (S), comprising a bottom inflatable airbag (320) and at least two side inflatable airbags (330). The bottom inflatable airbag (320) has a substantially elongated shape along a longitudinal axis (X). The at least two side inflatable airbags (330) partially overlap the bottom inflatable airbag (320) and are positioned such that end regions (R1, R3) of the bottom inflatable airbag (320) are covered by the side inflatable airbags (330), while a central region (R2) of the bottom inflatable airbag (320) is not covered by the side inflatable airbags (330). The invention also relates to a neck rest (N), a seat comprising the neck rest (N) and a seat comprising a seat cushion support (C).

Description

Technical Field

[0001] The present invention relates to an airbag device for a seat, particularly as part of a neck support or seat cushion, and also to a seat incorporating the airbag device. Background Technology

[0002] It is known that seats, particularly vehicle seats such as those used in automobiles, have backrests and headrests. For example... Figure 1 As shown, the headrest H is typically movably connected to the backrest B to accommodate occupants of different heights. Generally, this is achieved by connecting the headrest H to the backrest B using one or more rods R.

[0003] The problem with this configuration is that, in order to accommodate shorter users, most users will feel a gap between the headrest H and the backrest B. This could lead to comfort and safety issues.

[0004] For some seats where occupants sit for extended periods, this can become a nuisance, uncomfortable, or even painful experience. Furthermore, for more expensive seats, such as car seats, users expect a very comfortable seating position. Therefore, providing some form of neck support, such as a neck brace, is preferable.

[0005] Furthermore, since different users have different body shapes, the neck brace is preferably constructed to accommodate different neck shapes. That is, not only should the thickness of the neck brace be configurable to accommodate the distance between the neck and the seat S, but the neck brace should also have a shaper that can be configured to accommodate wider or narrower necks.

[0006] From a safety perspective, when a seat is installed in a vehicle, such as a car, the gap between the headrest H and the backrest B in the event of an accident could lead to problems such as neck sprains or worse. Therefore, in addition to providing support for the back of the neck, a neck brace preferably also provides a degree of lateral support, which is advantageous in the event of a side collision.

[0007] From the documents WO2015 / 088463A1, WO1996 / 029914A1, DE102011018272A1, US2018 / 0056833A1, DE102008024995A1, US2018 / 0064253A1, KR102018009575A, GB2310371A, DE1020050302 Various neck brace configurations are known under 58A1, US10099582B2, DE19851027A1, DE10334510A1, DE19528716A1, DE102009005492A1, DE19955046A1, CN108082016A, DE102012009366A1, and US2003 / 0234567A1.

[0008] Generally, known systems employ one or more rigid mechanical components, such as plates, pivots, and joints, to implement neck braces. This makes the manufacture and assembly of known systems expensive and complex. Furthermore, when the seat is installed in a vehicle, the rigid mechanical mechanism can pose a safety hazard in the event of a collision. Additionally, many known solutions do not provide a neck brace configuration of adequate level to fully accommodate the various possible shapes of the user's body.

[0009] In addition, seat cushions often include more and more features, such as the ability to configure the support level and / or massage function of different areas of the cushion.

[0010] Therefore, it would be convenient to provide a device that enables various cushion configurations and / or provides massage functions. Summary of the Invention

[0011] The present invention was developed to address at least some of the problems present in known solutions, and generally relates to at least a portion of a neck brace and / or at least a portion of a seat cushion implemented by an airbag device.

[0012] One aspect specifically relates to an airbag device for a neck support or seat cushion support of a seat, the airbag device comprising a bottom inflatable airbag and at least two side inflatable airbags. The bottom inflatable airbag has a generally elongated shape along its longitudinal axis. The at least two side inflatable airbags partially overlap with the bottom inflatable airbag and are positioned such that the end regions of the bottom inflatable airbag are covered by the side inflatable airbags, while the central region of the bottom inflatable airbag is not covered by the side inflatable airbags.

[0013] Because of this arrangement, when the airbag is inflated, the end regions can achieve a greater thickness compared to the central region. This difference in thickness can be used in neck braces to at least partially enclose the user's neck, providing rear and lateral support. In seat cushion supports, this difference in thickness can be used to provide lateral support for the thighs or support under the thighs.

[0014] In some cases, when the airbag is inflated, the first thickness of the airbag in the end region may be greater than the second thickness of the airbag in the center region.

[0015] In some cases, the first thickness may be between 70 mm and 140 mm, preferably between 30 mm and 120 mm, and the second thickness may be between 30 mm and 120 mm, preferably between 50 mm and 70 mm.

[0016] These values, discovered by the inventors, are particularly suitable for the use of airbag devices in neck braces and / or seat cushion supports.

[0017] In some cases, the bottom inflatable airbag may have a first height and a second height. The first height is perpendicular to the longitudinal axis and corresponds to the end region, while the second height is perpendicular to the longitudinal axis and corresponds to the center region. The first height is greater than the second height.

[0018] Due to this arrangement, the thickness difference between the central region and the end regions can be obtained and / or increased.

[0019] In some cases, the first height can be between 50mm and 200mm, preferably between 70mm and 150mm; the second height can be between 40mm and 180mm, preferably between 50mm and 120mm.

[0020] These values, discovered by the inventors, are particularly suitable for the use of airbag devices in neck braces.

[0021] In some cases, the bottom inflatable airbag may have a width along the longitudinal axis between 100 mm and 400 mm, preferably between 200 mm and 300 mm, and / or each end region in the end region may have a width along the longitudinal axis between 0 mm and 150 mm, preferably between 40 mm and 100 mm, and / or the central region may have a width along the longitudinal axis between 50 mm and 200 mm, preferably between 80 mm and 130 mm.

[0022] These values, discovered by the inventors, are particularly suitable for the use of airbag devices in neck braces.

[0023] In some cases, the bottom inflatable airbag may have a width along the longitudinal axis between 100 mm and 600 mm, preferably between 400 mm and 500 mm, and / or each end region in the end region may have a width along the longitudinal axis between 0 mm and 150 mm, preferably between 40 mm and 100 mm, and / or the central region may have a width along the longitudinal axis between 100 mm and 400 mm, preferably between 150 mm and 250 mm.

[0024] These values, discovered by the inventors, are particularly suitable for use in airbag devices as seat cushion support.

[0025] In some cases, at least one of the side-inflatable airbags may have a generally trapezoidal shape.

[0026] Due to this arrangement, the side inflatable airbags can exhibit a thickness difference along their length, and preferably have a smaller thickness toward the central region.

[0027] In some cases, at least one of the side-inflatable airbags may have two generally parallel edges, the two generally parallel edges comprising a shorter edge and a longer edge, and the shorter edge may be closer to the central region than the longer edge.

[0028] Due to this arrangement, the side inflatable airbags can exhibit a thickness difference along their length, and preferably have a smaller thickness toward the central region.

[0029] In some cases, at least one of the side-inflatable airbags is folded at the fold line into two generally overlapping portions to form a U-shape.

[0030] Due to this arrangement, the side inflatable airbags can exhibit a thickness difference along their length, and preferably have a smaller thickness toward the central region.

[0031] In some cases, the fold line can be approximately perpendicular to the longitudinal axis of the bottom inflatable airbag. In some cases, the central area can be closer to the fold line than the side closer to the U-shaped opening.

[0032] Due to this arrangement, the side inflatable airbags can exhibit a thickness difference along their length, and preferably have a smaller thickness toward the central region.

[0033] In some cases, the airbag device may further include at least one fluid supply connector for inflating and / or deflating the bottom inflatable airbag and / or at least two side inflatable airbags. In some cases, the airbag device may further include at least one fluid supply interconnect for connecting at least two of the bottom inflatable airbags to any one of the at least two side inflatable airbags. In some cases, the fluid supply interconnect can connect at least two side inflatable airbags to each other.

[0034] Because of these arrangements, the bottom inflatable airbag can be controlled independently of at least two side inflatable airbags, which preferably reduces the number of fluid supply connections.

[0035] In some cases, the bottom inflatable airbag may include at least one hole for connecting to at least one of the at least two side inflatable airbags.

[0036] This arrangement reduces the number of fluid supply connections.

[0037] In some cases, the bottom inflatable airbag may include at least two first flexible material sheets, wherein each of the at least two side inflatable airbags may include at least two second flexible material sheets, wherein one of the first flexible material sheets includes a hole, and wherein one of the second flexible material sheets includes a hole.

[0038] This arrangement allows for the creation of holes in a highly efficient and effective manner.

[0039] In some cases, a first flexible material sheet including holes in a first flexible material sheet can be bonded to a second flexible material sheet including holes in a second flexible material sheet.

[0040] This arrangement also allows for the connection of airbags.

[0041] In some cases, one or more of the bottom inflatable airbag and at least two side inflatable airbags may include at least one connecting strap configured to connect to the frame of the neck brace.

[0042] This implementation allows for easy connection to the framework.

[0043] On the other hand, it may involve a neck brace comprising a frame and an airbag device according to any of the foregoing aspects, the airbag device being mounted on the frame.

[0044] In some cases, the frame may include connection devices for connecting to the headrest and / or to one or more rods that connect the headrest to the seat.

[0045] Because of this arrangement, the position of the neck brace can be configured, preferably in a manner that depends on the position of the headrest.

[0046] In some cases, the frame may include a bottom mounting device for connecting to the bottom inflatable airbag, and at least two side mounting devices for connecting to at least two side inflatable airbags, respectively.

[0047] This arrangement allows control over the inflation width of the side inflatable airbags, thereby controlling the width of the central area. Furthermore, better lateral support is achieved, which can also be configured by adjusting the angle between the side mounting devices and the bottom mounting devices.

[0048] On the other hand, it may involve a seat with a neck support, the neck support including an airbag device according to any of the foregoing aspects.

[0049] On the other hand, it may involve a seat with a cushion support, the cushion support including an airbag device according to any of the foregoing aspects.

[0050] On the other hand, it may involve a seat with a cushion support, the cushion support including two airbag devices according to any of the foregoing aspects, one airbag device for each leg.

[0051] On the other hand, it may involve an extendable seat support, which includes an airbag device and a frame according to any of the foregoing aspects.

[0052] On the other hand, it may involve an extendable seat support comprising two airbag devices according to any of the foregoing aspects and a frame, with one airbag device used for each leg.

[0053] In some embodiments, the frame may be pivotally mounted to the seat.

[0054] On the other hand, it may involve a seat with extendable cushion support, or an extendable cushion support including an airbag device according to any of the foregoing aspects. Attached Figure Description

[0055] Figure 1 The front view, side view and top view of the seat S according to the prior art are schematically shown; Figure 2The front, side and top views of the seat S including the neck support N are schematically shown, wherein the neck support N is in a generally inflated configuration. Figure 3A The enlarged front view, side view and two top views of the neck brace N are schematically shown, in which the neck brace N is in a generally inflated configuration; Figure 3B An enlarged front and side view of the neck brace N is schematically shown, in which the neck brace N is in a generally inflated configuration; Figure 4 An enlarged front and top view of the bottom inflatable airbag 420 for the neck brace are schematically shown, wherein the neck brace is in a generally inflated configuration. Figure 5 An enlarged front view and a top view schematically show the side inflatable airbag 530 for the neck brace, wherein the neck brace is in a generally inflated configuration. Figure 6 An enlarged front view and a top view schematically show the side inflatable airbag 630 for the neck brace, with the left neck brace in a generally deflated configuration and the right neck brace in a generally inflated configuration. Figure 7 An enlarged front and side view of an airbag device 700 for a neck brace are schematically shown, wherein the neck brace is in a generally inflated configuration. Figure 8 An enlarged front view of the airbag device 800 for the neck brace is shown schematically. Figure 9 An enlarged cross-sectional view and an exploded view of the airbag device 900 for the neck brace are schematically shown. Figure 10 An enlarged front view and a side view of the airbag device 1000 are schematically shown; Figure 11A , Figure 11B and Figure 11C The front, side and top views of the seat S are shown schematically, respectively. The seat S includes a seat cushion support C in a generally inflated configuration. Figure 12 The diagram schematically shows an enlarged front view, a side view, and two top views of a neck brace N in a generally inflated configuration, as well as an enlarged top view of a neck brace N in a generally deflated configuration. Figure 13A , Figure 13B and Figure 13C The front, side and top views of the seat S are shown schematically, which includes an extendable seat cushion support EC in a generally inflated configuration. Detailed Implementation

[0056] In the following description, it will be mentioned that the airbag device is used as part of the neck brace N or as a seat cushion support C. Obviously, the features of the airbag device described in the example application as a neck brace can also be implemented in the application as a seat cushion support C, or the features of the airbag device described in the example application as a seat cushion support C can also be implemented in the application as a neck brace.

[0057] Figure 2 The front view (upper left), side view (upper right), and top view (lower left) of the seat S, including the neck support N in a generally inflated configuration, are schematically shown.

[0058] Throughout the description, the terms "generally inflated" or "inflated" refer to at least 30% inflation of the airbag device included in the neck brace, preferably at least 60% inflation of the airbag device included in the neck brace, and even more preferably at least 90% inflation of the airbag device included in the neck brace.

[0059] For illustrative purposes, seat S will be shown and refers to a vehicle seat, preferably an automobile seat. However, it is clear that the invention is not limited to this and can be applied to any seat. Application to vehicle seats is particularly advantageous because, compared to existing technologies, the invention achieves low weight and a high degree of occupant body adaptation, both of which are generally required and desirable standards in vehicle seats. Furthermore, the invention significantly reduces the number of components that could pose a risk in a collision. Conversely, by introducing airbags, even passive safety devices can be formed in the event of a collision. These features are highly valued in vehicle seats.

[0060] Throughout this description, referring to the accompanying drawings, the front view refers to the view seen from the Z direction. That is, the view seen from a direction generally perpendicular to the plane of the backrest B. Alternatively or additionally, the front view can be understood as the view seen from a direction generally perpendicular to the plane including the neck brace when the neck brace is in a generally deflated configuration.

[0061] Similarly, throughout the description, referring to the accompanying drawings, a side view refers to a view seen from the X direction. That is, a view seen from a direction generally parallel to the plane of the backrest B and perpendicular to the vertical extension direction of the backrest B. Alternatively or additionally, a side view can be understood as a view seen from a direction generally parallel to the main longitudinal extension direction of the neck brace, at least when the neck brace is in a generally deflated configuration.

[0062] Similarly, throughout the description, referring to the accompanying drawings, the top view refers to the view seen from the Y direction. That is, the view seen from a direction generally parallel to the plane of the backrest B and parallel to the vertical extension direction of the backrest B. Alternatively or additionally, the top view can be understood as, at least when the neck brace is in a generally deflated configuration, the view seen from a direction generally parallel to the plane including the neck brace and perpendicular to the main longitudinal extension direction of the neck brace.

[0063] like Figure 2 and Figure 3A As shown, the neck brace N typically includes frames 210, 310 and airbag devices 200, 300 mounted on the frames 210, 310.

[0064] Frames 210 and 310 can generally be understood as any mechanical support for airbag devices 200 and 300, capable of positioning airbag devices 200 and 300 in a position on the seat S that substantially corresponds to the user's neck position. Those skilled in the art will appreciate that various possible implementations of frames 210 and 310 for the neck support S are feasible depending on the configuration of the seat S and / or its frame.

[0065] exist Figure 2 and Figure 3A In the exemplary illustrations, exemplary frames 210 and 310 are provided for illustrative purposes. However, it is clear that the invention is not limited to the configuration specifically shown.

[0066] like Figure 3A As can be better seen in the illustration, one possible implementation of the frame 310 includes a mounting device 311 and a connecting device 312. The mounting device 311 can typically be any device for mounting the airbag device to the frame 310. In the example shown, the mounting device 311 is typically implemented by a planar element whose area substantially corresponds to the area of ​​the airbag device 300 along the plane XY.

[0067] The connecting device 312 can generally be understood as any mechanical element that connects the mounting device 311 to one or more parts of the seat S. Preferably, the connecting device 312 connects the mounting device 311 to the headrest H and / or one or more rods R. This configuration is particularly advantageous because it allows the connecting device 312 and the mounting device 311 to move together with the headrest H when the headrest H is adjusted by the user. This results in a particularly advantageous positioning of the neck support N, as the positioning of the neck support N is automatically adjusted after the headrest H is correctly positioned. Furthermore, this configuration allows the frame 310 to be adapted to multiple seats S with different configurations but similar headrests H and / or rods R.

[0068] However, as previously stated, the configuration shown is only one of many possible ways to provide the mounting frame 310 to the airbag device of the neck brace N, and various alternatives will be clear to those skilled in the art, especially based on the consideration that the frame 310 may also be connected to the frame of the seat S or a portion thereof.

[0069] The airbag device can be mounted on frames 210 and 310 in various ways. For example, frames 210 and 310, particularly mounting device 311, can have a configuration that holds the airbag device in place. Alternatively or additionally, the airbag device can be attached to frames 210 and 310 by one or more attachment devices, such as adhesive, Velcro straps, etc. Alternatively or additionally, the airbag device can be held on mounting device 311 by a decorative element covering at least the neck brace N.

[0070] Similarly, the connection between the individual airbags, particularly the connection between the bottom inflatable airbag and one or more of the at least two side inflatable airbags, can be achieved by one or more attachment devices, such as adhesive, Velcro straps, etc. Alternatively or additionally, such a connection can be achieved by at least partially combining two adjacent flexible sheets, such as sheets S2 and S3, as previously discussed... Figure 9 As illustrated in the embodiments, even in embodiments where the hole H is not provided.

[0071] Alternatively or otherwise, such as Figure 10 As shown, one or more of the bottom inflatable airbag 1020 and at least two side inflatable airbags 1030 may include at least one connecting strap 1023 / 1 to 1023 / 2, 1033 / 1 to 1033 / 4, at least one connecting strap being configured to connect to the frame 210, frame 310 of the neck brace N. Preferably, as Figure 10 As shown on the right, the connecting strap can be connected to the mounting device 311.

[0072] In the illustrated implementation, each of the bottom inflatable airbags 1020 and each of the two side inflatable airbags 1030 includes two connecting straps 1023 / 1 to 1023 / 2, 1033 / 1 to 1033 / 4, which are connected along the longitudinal axis to the ends of the respective airbags. Therefore, the bottom inflatable airbag 1020 includes connecting strap 1023 / 1 at end 321 and connecting strap 1023 / 2 at end 322. Similarly, the left inflatable airbag 1030 includes connecting straps 1033 / 1 and 1033 / 2, while the right inflatable airbag 1030 includes connecting straps 1033 / 3 and 1033 / 4. This configuration is particularly advantageous because the outer straps 1023 / 1, 1033 / 1, 1023 / 2, and 1033 / 4 can be used to connect the respective airbags to the mounting device 311, while the inner straps 1033 / 2 and 1033 / 3 can be used to connect the side inflatable airbags 1030 to the bottom inflatable airbag 1020. However, the invention is not limited thereto; in some embodiments, any number of the shown straps can be implemented, with corresponding advantages.

[0073] In a preferred embodiment, the connecting strap may be made of the same material as the inflatable airbag, such as one or more flexible material sheets, so that the airbag and the corresponding connecting strap can be manufactured in a single manufacturing process.

[0074] Although the above embodiments have described the connection between the connecting strap and the frame of the neck brace N, it is clear that a similar implementation for the seat cushion support C can be obtained by connecting the connecting strap to the frame of the seat (S) and / or to the frame of the seat cushion portion of the seat.

[0075] Alternatively or otherwise, such as Figure 12 As shown, the frame 1210 may include a bottom mounting device 1211 for connecting to the bottom inflatable airbag 320, and at least two side mounting devices 1213 / 1, 1213 / 2 for connecting to at least two side inflatable airbags 330 respectively.

[0076] Preferably, the bottom mounting device 1211 is connected to the connecting device 312, and at least two side mounting devices 1213 / 1, 1213 / 2 are connected to the bottom mounting device 1211. Alternatively or additionally, at least two side mounting devices 1213 / 1, 1213 / 2 may be directly connected to the connecting device 312, rather than being connected to the connecting device 312 through the bottom mounting device 1211.

[0077] Preferably, at least two side mounting devices 1213 / 1, 1213 / 2 define an angle between 60 degrees and 160 degrees, or even more preferably between 90 degrees and 120 degrees, relative to the bottom mounting device 1211. In some embodiments, the connection between the side mounting devices 1213 / 1, 1213 / 2 and the bottom mounting device 1211 and / or the connecting device 312 can also allow the angle between the side mounting devices 1213 / 1, 1213 / 2 and the bottom mounting device 1211 to be changed, for example, by providing a hinged mount. This increases the configuration of the neck brace N.

[0078] When comparing Figure 12 The lower left one is mostly inflated. Figure 12 The lower right corner is visible when the air has been largely released. Figure 12 One advantage of this embodiment is that the inflation of the side inflatable airbag 330 allows for control over both its thickness in the Z direction and its length in the X direction. In other words, the sizes of regions R1, R2, and R3 can be advantageously controlled. Furthermore, this implementation enhances the lateral support provided by the side inflatable airbag 330, as the movement of the side inflatable airbag 330 is restricted by the side mounting devices 1213 / 1 and 1213 / 2.

[0079] The airbag device of the neck brace N will now be described in detail. Clearly, any airbag device can be combined with any of the aforementioned frames.

[0080] like Figure 2 As shown, and in Figure 3A As can be better seen in the enlarged view, the airbag device 200 and airbag device 300 for the neck support N of the seat S include a bottom inflatable airbag 320, which has a shape that is generally elongated along the longitudinal axis. In the figure, this corresponds to the X direction. When installed, the longitudinal axis is generally perpendicular to the vertical direction of the backrest B.

[0081] In some embodiments, the bottom inflatable airbag 320 preferably has a generally rectangular shape, wherein the long side of the rectangle is parallel to the longitudinal axis. However, the invention is not limited thereto, for example, Figure 4 Other shapes shown are also acceptable.

[0082] The bottom inflatable airbag 320 provides bottom thickness adjustment for the airbag device, thereby providing bottom thickness adjustment for the neck brace N. Throughout the description, the term "thickness" refers to a measurement in the inflation direction of the airbag device, corresponding to the Z direction in the figure. This is also the direction in which the neck brace N separates from the user's neck; therefore, increasing the thickness brings the neck brace N closer to the user's neck, and conversely, decreasing the thickness increases the distance between the neck and the neck brace N. The bottom inflatable airbag 320 thus forms the first adjustment of the neck brace N.

[0083] In addition to adjusting the distance between the neck brace N and the neck, the bottom inflatable airbag 320 also adjusts the pressure applied to the neck by the neck brace N. For example, in some embodiments, the distance between the neck brace N and the neck can be adjusted by the frame 310, thereby controlling the positioning of the mounting device 311 relative to the seat S. In this case, the distance between the neck and the neck brace can be adjusted at least partially by the frame 310, and the inflation or deflation of the bottom inflatable airbag 320 can be used at least partially to control the pressure applied to the neck by the neck brace N.

[0084] like Figure 3B As shown, in some embodiments, the connecting device 312 may have a length L1. Preferably, the length L1 is between 5 cm and 20 cm. In some embodiments, the length L1 can be adjusted by implementing a length adjustment method on the connecting device 312, for example by telescopically connecting the connecting device 312 via pneumatic, manual, or electromechanical actuation. Preferably, the adjustment amount is between 0 mm and 100 mm, and even more preferably between 10 mm and 50 mm.

[0085] Since the bottom inflatable airbag 320 is placed between the neck and the frame 310, it also serves as a safety device, particularly in the event of a rear-end collision in a vehicle equipped with the seat S, by absorbing at least part of the impact energy before the neck contacts the frame 310.

[0086] The airbag device 200 and airbag device 300 further include at least two side inflatable airbags 330, which partially overlap with the bottom inflatable airbag 320 and are positioned such that the end regions R1 and R3 of the bottom inflatable airbag 320 are covered by the side inflatable airbags 330, while the central region R2 of the bottom inflatable airbag 320 is not covered by the side inflatable airbags 330. In a preferred embodiment, the number of side inflatable airbags 330 may be equal to two.

[0087] Each of the side inflatable airbags 330 preferably has an area smaller than that of the bottom inflatable airbag 320. Even more preferably, the combined area of ​​the side inflatable airbags 330 is smaller than that of the bottom inflatable airbag 320, and the difference in area at least partially results in the central region R2 of the bottom inflatable airbag 320 not being covered by the side inflatable airbags 330.

[0088] The two end regions R1 and R3 are preferably separated by a central region R2. End region R1 is located along its longitudinal axis near the first end 321 of the bottom inflatable airbag. Preferably, region R1 is closer to the first end 321 than the central region R2. Similarly, end region R3 is located along its longitudinal axis near the second end 322 of the bottom inflatable airbag, which is opposite the first end in the longitudinal direction. Preferably, region R3 is closer to the second end 322 than the central region R2.

[0089] Although in the illustrated embodiment, the side inflatable airbag 330 has edges facing the ends 321, 322 that substantially overlap with the corresponding ends of the bottom inflatable airbag 320, the invention is not limited thereto, and in some embodiments, the side inflatable airbag 330 and the bottom inflatable airbag 320 may terminate at different locations along the X-axis.

[0090] Similarly, although in the illustrated embodiment, the end of the side inflatable airbag 330 substantially overlaps with the corresponding end of the bottom inflatable airbag 320 in the Y direction, the invention is not limited thereto. In some embodiments, the side inflatable airbag 330 and the bottom inflatable airbag 320 may terminate at different locations along the Y-axis at the bottom and / or top of the neck brace N.

[0091] like Figure 3A As best shown in the lower right corner, in some embodiments, when inflated, the first thickness T1 of the airbag device 200 and airbag device 300 at the end regions R1 and R3 can be thicker than the second thickness T2 of the airbag device 200 and airbag device 300 at the central region R2.

[0092] Due to this thickness difference, the side inflatable airbags 330 can provide lateral support for the neck, so the neck can be at least partially positioned between the side inflatable airbags 330, in the central region R2. In this way, the side inflatable airbags 330 increase the comfort of the neck brace N and provide additional safety protection for the neck and head in the event of a side collision.

[0093] Furthermore, since the side inflatable airbags 330 and the bottom inflatable airbags 320 can be implemented separately, in some embodiments, the inflation levels of the side inflatable airbags 330 and the bottom inflatable airbags 320 can be controlled independently. This allows for configurability of the neck brace N's height to suit a wide range of user body shapes and preferences. In other words, the difference between T1 and T2 can be controlled by adjusting the inflation level of the side inflatable airbags 330.

[0094] In some embodiments, the first thickness T1 can be between 50 mm and 200 mm, preferably between 70 mm and 140 mm. Similarly, in some embodiments, the second thickness T2 can be between 30 mm and 120 mm, preferably between 50 mm and 70 mm. The inventors have found that these values ​​provide sufficient configurability for most users while limiting the materials required for the neck brace N.

[0095] like Figure 3B As best shown, in some embodiments, the bottom inflatable airbag 320 may have a width WT along the longitudinal axis (direction X in the figure), which is between 100 mm and 400 mm, preferably between 200 mm and 300 mm. In some embodiments, this may also correspond to the width of the neck brace N in the installation position. Alternatively or additionally, in some embodiments, each of the end regions R1, R3 may have a width W1, W3 along the longitudinal axis (direction X in the figure), which is between 0 mm and 150 mm, preferably between 40 mm and 100 mm. Additionally, in some embodiments, the central region R2 may have a width W2 along the longitudinal axis (direction X in the figure), which is equal to WT - (W1 + W3), or particularly in embodiments where the ends of the airbag do not overlap along direction X, the width W2 is between 50 mm and 200 mm, preferably between 80 mm and 130 mm. The inventors have found that these values ​​allow for sufficient dimensions to comfortably accommodate the necks of most users while limiting the overall size of the neck brace N.

[0096] like Figure 3B As shown, in some preferred embodiments, the bottom inflatable airbag 420 has a first height H1 measured perpendicular to the longitudinal axis (and thus along direction Y in the figure). In some embodiments, such as Figure 3B As shown, the side-inflatable airbag 330 may also have a height corresponding to H1, but the present invention is not limited thereto. Preferably, the first height H1 is between 50 mm and 200 mm, and more preferably between 70 mm and 150 mm.

[0097] However, the present invention is not limited to configurations with a constant height H1. For example, such as Figure 4 As shown, in some preferred embodiments, the bottom inflatable airbag 420 may have a first height H1 and a second height H2. The first height H1 is measured perpendicular to the longitudinal axis, and therefore along the direction Y in the figure, and substantially corresponds to the end regions R1 and R3. The second height H2 is perpendicular to the longitudinal axis X and corresponds to the central region R2. Preferably, the first height H1 may be greater than the second height H2.

[0098] Due to this arrangement, such as Figure 4As best shown in the right-hand portion, the difference in heights H1 and H2 also affects the thickness of the bottom inflatable airbag 420. Specifically, due to geometric considerations, a lower height generally results in a lower thickness. Since the height H2 in the central region is lower than the height H1 in the end regions R1 and R3, this also results in a thickness T2 in the central region being lower than the thickness T3 in the end regions. This leads to a shape that better suits the natural shape of the neck and also contributes to the thickness difference between the end regions R1 and R3 and the central region R2, as previously described.

[0099] Preferably, in some embodiments, the second height H2 can be between 40 mm and 180 mm, and more preferably between 50 mm and 120 mm.

[0100] In some preferred embodiments, for example Figure 4 As shown, the height of the bottom inflatable airbag 420 along the entire end regions R1 and R3 is higher than the height of the bottom inflatable airbag 420 along the entire central region R2. Preferably, the height change between the end regions R and the central region R2 is monotonous and even more preferably gradual. The same consideration can be applied to the height change between the end regions R3 and the central region R2.

[0101] In the above embodiments, the side-inflatable airbag 330 has a generally quadrilateral shape, preferably a rectangular shape, for example, having a height H1 and widths W1 and W3. However, the present invention is not limited thereto.

[0102] In particular, in some embodiments, such as Figure 5 As shown, at least one, preferably both, of the side-inflatable airbags 530 may have a generally trapezoidal shape. In other words, in some embodiments, at least one, preferably both, of the side-inflatable airbags 530 may have two generally parallel edges 531 / 1, 531 / 2, including a shorter edge 531 / 1 and a longer edge 531 / 2. The shorter edge 531 / 1 is preferably closer to the central region R2 than the longer edge 531 / 2. In other words, the non-parallel edges 531 / 3 and 532 / 4 may converge toward each other in the direction toward the central region R2.

[0103] The advantage of this configuration is that as the height of the side inflatable airbag 530 in the Y direction increases towards the outside of the neck brace N, the thickness of the side inflatable airbag 530 also increases, such as... Figure 4As shown on the right, the thickness increases from T4 to T5. Preferably, the increase in height of the side inflatable airbag 530 is monotonous and gradual, resulting in a similar increase in thickness. This configuration provides lateral support that increases in thickness as it moves away from region R2, which is anatomically preferred because it follows the shape of the neck.

[0104] Alternatively, it can be done through Figure 6 The illustrated side-inflatable airbag 630 achieves similar advantages. Specifically, in some embodiments, at least one, preferably both, side-inflatable airbags of the side-inflatable airbags 630 can be folded at fold line 631 into two substantially overlapping portions 630 / 1, 630 / 2 to form a U-shape. Preferably, fold line 631 can be substantially perpendicular to the longitudinal axis of the bottom-inflatable airbag 320, bottom-inflatable airbag 420. Preferably, the central region R2 can be closer to fold line 631 than the opening side of the U-shape. In this last configuration, the opening side of the U-shape, i.e., the side of the side-inflatable airbag 630, is thus oriented towards the outside of the neck brace N.

[0105] Because of this arrangement, especially in Figure 6 As shown in the right side portion, the same advantages discussed for the side inflatable airbag 530 can be obtained, namely, the thickness of the side inflatable airbag 630 can be increased when moving away from region R2, thereby making the shape of the neck brace N more anatomically compliant.

[0106] In the above embodiments, specific connections to various airbags are not described. Those skilled in the art will understand that inflatable airbags can be connected to a pump, for example, via pipes and valves, to inflate and / or deflate the airbags. Figure 7 An exemplary embodiment of the method is shown.

[0107] The airbag device 700 differs from the previously described airbag device in that it further includes at least one fluid supply connector 722, 732 for inflating and / or deflating the bottom inflatable airbag 720 and / or at least two side inflatable airbags 730. In the illustrated embodiment, each of the side inflatable airbags 730 and the bottom inflatable airbag 720 is provided with a fluid supply connector 732, 722. In the illustrated embodiment, the fluid supply connectors 722, 732, when installed, are routed from the top of the airbag device 700 toward the rod R and through the backrest B. This embodiment has the advantage that the fluid supply connectors 722, 732 cause minimal disturbance to the seat occupant; however, the invention is not limited to this, and alternative route arrangements are possible.

[0108] Figure 7The illustrated implementation has the advantage that each airbag in the airbag device can be controlled independently. This provides the user with the maximum possible configuration.

[0109] Figure 8 One embodiment is schematically illustrated, wherein the airbag device 800 further includes at least one fluid supply interconnect 833 for connecting at least two of the bottom inflatable airbag 720 and any one of the at least two side inflatable airbags 830. In the illustrated embodiment, the fluid supply interconnect 833 connects the two side inflatable airbags 830 to each other, thereby providing a fluid interconnect between them.

[0110] The advantage of this method is that it reduces the number of fluid supply connectors 722 and 732, thereby reducing manufacturing and installation complexity and cost. Meanwhile, in most practical applications, the lack of independent control over the two side inflatable airbags 830 is not a disadvantage, as most users will prefer symmetrical operation of the two side inflatable airbags 830.

[0111] Although the fluid supply interconnect 833 is shown positioned vertically below the airbag assembly, its placement during installation is not limited to this. Alternative routes for the fluid supply interconnect 833 are possible.

[0112] Figure 9 Another method for the airbag device 900 is schematically illustrated. In some embodiments, the bottom inflatable airbag 920 may include at least one aperture H for connecting to at least one of the at least two side inflatable airbags 930. In the illustrated embodiment, the bottom inflatable airbag 920 includes two such apertures H, each connecting the bottom inflatable airbag 920 to at least two side inflatable airbags 920. This method has the advantage of further reducing the number of fluid supply connections 722, 732.

[0113] In some embodiments, such as Figure 9 As shown in the right-hand portion, the bottom inflatable airbag 920 may include at least two first flexible material sheets S1, S2, and each of the at least two side inflatable airbags 930 may include at least two second flexible material sheets S3, S4. The airbags can be implemented by combining the flexible material sheets in a known manner.

[0114] To realize the hole H, one of the first flexible material sheets S1 and S2 may include the hole H; in the illustrated embodiment, it is the first flexible material sheet S2. Similarly, one of the second flexible material sheets S3 and S4 may also include the hole H; in the illustrated embodiment, it is the second flexible material sheet S3. By combining the peripheries of the hole H in the flexible material sheets S2 and S3, the hole between the airbags 920 and 930 can be realized, and these airbags are mechanically connected to each other, which facilitates the assembly of the airbag device in the seat S.

[0115] In the above embodiments, various shapes for airbags, particularly for side-inflatable airbags, such as rectangular and trapezoidal shapes, have been described. In some embodiments, the side-inflatable airbag may also have a generally circular shape. Preferably, when the shape is similar to... Figure 9 When the illustrated embodiment is combined, the generally circular shape can be approximately centered around the hole H. This is particularly advantageous because it simplifies manufacturing, since once the hole H is correctly aligned, no further alignment of the side inflatable airbags is required, as they are circularly symmetrical about the hole H.

[0116] Therefore, how to manufacture and / or construct an airbag device for use in the neck support N of the seat S has been described. As noted, any of the above features can also be applied to the seat cushion support C.

[0117] As an example, Figure 11A The front, side and top views of a seat S are schematically shown. The seat S includes a seat cushion support C in a generally inflatable configuration. It can be seen that, in the same case, the bottom inflatable airbag 1120 has a region R2 in which the bottom inflatable airbag 1120 is not covered by at least two side inflatable airbags 1130, which are generally positioned at the two ends of the bottom inflatable airbag 1120.

[0118] Depending on the size of the side-inflatable airbags 1130, these can be used as configurable lower support for the thigh and / or as massage areas for the thigh. Additionally, the side-inflatable airbags 1130 can be used as lateral support for the thigh and / or as lateral massage areas for the thigh. Clearly, the specific configuration of the airbag device 1100A can include any of the previously described configurations.

[0119] Figure 11B Another possible implementation is shown, wherein the seat S has a cushion support C comprising at least two, preferably two, airbag devices 1100A, collectively referred to as airbag devices 1100B, with one airbag device 1100B used for each leg. Again in this case, the two airbag devices 1100A can be implemented in any of the previously described manner.

[0120] One advantage of providing an airbag device 1100B that includes two such airbag devices 1100A is that it can provide support and / or massage on both sides of each leg.

[0121] Figure 11C It shows the relationship with Figure 11B A similar configuration, in which two bottom-inflatable airbags 1120 and two center-side inflatable airbags 1130 can be understood as being connected together. This implementation can help reduce... Figure 11B It offers the same cost as the configuration while providing similar advantages.

[0122] This results in an airbag device 1100C comprising a single bottom inflatable airbag 1120 and two side inflatable airbags 1130, for which any prior configuration for an airbag device can be implemented as previously described. Furthermore, the central region includes a first portion R2' and a second portion R2'". The first portion R2' can be configured with any of the previously described features for the second region R2. On the other hand, the second portion R2' can be provided with an additional central inflatable airbag 1140. The central inflatable airbag can be implemented having any of the previously described features for the side inflatable airbags 1130. Preferably, the central inflatable airbag 1140 can be positioned approximately midway between the two side inflatable airbags 1130 along the X direction. In some embodiments, this results in the central region R2 comprising a first portion R2', a second portion R2'', and a third portion R2'' in the X direction, wherein the two first portions R2' have approximately similar dimensions in the X direction.

[0123] Preferably, in some embodiments, each of the first portions R2' has a larger dimension in the X direction than the second portion R2"". Additionally, in some embodiments, the dimension of the second portion R2" of the second region in the X direction is less than 50% of the total width of the second region in the width direction, preferably less than 40% of the total width of the second region in the width direction, and even more preferably less than 30% of the total width of the second region in the width direction.

[0124] Further preferably, in some embodiments, the central inflatable airbag 1140 may have a position and / or size that positions the central inflatable airbag 1140 between the legs of a user seated on the seat S. The central inflatable airbag 1140 may also be configured to inflate in a configuration that contacts the inside of the user's legs.

[0125] Figure 13AAn extendable seat cushion support EC including airbag device 1300A is shown. In the illustrated embodiment, airbag device 1300A is generally similar to the previously described airbag device 1100A; however, it is clear that any of the previously described airbag devices can be implemented, particularly airbag devices 1100B and 1100C. Figure 13B and 13C The airbag device 1300B and airbag device 1300C are shown respectively.

[0126] The extendable seat cushion support EC has a similar function to the seat cushion support C. However, since the frame 1310 is preferably pivotally mounted to the seat S, the extendable seat cushion support EC can be positioned in the fully extended position (in...). Figure 13A (The upper right part is shown schematically) and the retracted position (in) Figure 13A (The lower right portion is shown schematically) anywhere between.

[0127] In the figures, frame 1310 is schematically shown as a generally planar mounting device, similar to mounting device 311. However, alternative shapes of frame 1310 are obviously possible, such as frame 1210 already described, including side mounting devices 1213 / 1 and 1213 / 2. Furthermore, frame 1310 is schematically shown with a connection device pivotally mounted to the seat, preferably mounted on the portion of seat S located below and / or in front of the seat cushion. However, alternative arrangements are obviously possible.

[0128] In its fully extended position, frame 1310 is preferably substantially parallel to the seat cushion of seat S, extending the seat cushion support EC so that the seat cushion can extend in the Z direction. Therefore, the advantages previously described related to thigh support and massage can also be applied to the lower thigh and / or upper calf.

[0129] In the various embodiments described above, and particularly in the accompanying drawings, the descriptions of the various airbags do not include any additional covering layers. Clearly, in various practical embodiments, the airbag device, or at least a portion thereof, may be covered with one or more layers, such as padding, foam, etc.

[0130] In particular, in some embodiments, electrodes can be integrated onto the outermost layer of one or more airbags facing the user. For example, in embodiments implementing a neck brace, the user's skin can be in direct contact with the neck brace, allowing electrical stimulation and / or massage to be achieved.

[0131] Although various features have been described as being combined together to achieve a given embodiment, it will be clear to those skilled in the art that one or more features from one or more embodiments can be combined in any way to obtain other embodiments.

[0132] List of reference numerals B: Backrest H: Headrest S: Seat R: lever 200: Airbag device N: Neck brace 300: Airbag device 310: Framework 311: Installation device 312: Connecting device 320: Inflatable airbag at the bottom 321: End 330: Side-mounted inflatable airbags H1: Height L1: Length T1, T2: Thickness W1, W2, W3, WT: Width 420: Inflatable airbag at the bottom H1, H2: Height T3: Thickness 530: Side-mounted inflatable airbags 531 / 1, 531 / 2, 531 / 3, 531 / 4: Edges T4, T5: Thickness 630: Side-mounted inflatable airbags 700: Airbag device 720: Inflatable airbag at the bottom 722: Fluid supply connector 730: Side-mounted inflatable airbags 732: Fluid supply connector 800: Airbag device 830: Side-mounted inflatable airbags 833: Fluid supply interconnect 900: Airbag device 920: Inflatable airbag at the bottom 930: Side-mounted inflatable airbags S1-S4: Flexible material sheets 1000: Airbag device 1020: Inflatable airbag at the bottom 1023 / 1-1023 / 2: Connecting belt 1030: Side-mounted inflatable airbags 1033 / 1-1033 / 4: Connecting belt 1100A: Airbag device 1120: Inflatable airbag at the bottom 1130: Side-mounted inflatable airbags C: Seat cushion support 1100B: Airbag device 1100C: Airbag device 1140: Center inflatable airbag R2': Part 1 R2”: Part Two 1210: Framework 1211: Bottom mounting device 1213 / 1, 1213 / 2: Side mounting device 1300A: Airbag device 1310: Framework EC: Extendable seat cushion support 1300B: Airbag device 1300C: Airbag device.

Claims

1. An airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) for a neck brace (N) or seat cushion support (C) of a seat (S), said airbag device comprising: Bottom inflatable airbags (320, 420, 720, 920, 1020, 1120), said bottom inflatable airbags (320, 420, 720, 920, 1020, 1120) having a shape elongated along the longitudinal axis (X); and At least two side inflatable airbags (330, 530, 630, 730, 830, 930, 1030, 1130), at least two of said side inflatable airbags (330, 530, 630, 730, 830, 930, 1030, 1130) partially overlap with said bottom inflatable airbag (320, 420, 720, 920, 1020, 1120) and are positioned such that said bottom inflatable airbags (320, 420, 720, 920, 1020, 1120) The end regions (R1, R3) of the 20, 1020, and 1120 airbags are covered by the side inflatable airbags (330, 530, 630, 730, 830, 930, 1030, and 1130), while the central region (R2) of the bottom inflatable airbags (320, 420, 720, 920, 1020, and 1120) is not covered by the side inflatable airbags (330, 530, 630, 730, 830, 930, 1030, and 1130). Its features are: At least one of the side-inflatable airbags (630) is folded at the fold line (631) into two generally overlapping portions (630 / 1, 630 / 2) to form a U-shape, and The fold line (631) is approximately perpendicular to the longitudinal axis of the bottom inflatable airbags (320, 420, 720, 920, 1020, 1120).

2. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to claim 1, wherein, When inflated, the first thickness (T1) of the airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) in the end regions (R1, R3) is greater than the second thickness (T2) of the airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) in the central region (R2).

3. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to claim 2, wherein, The first thickness (T1) is between 70 mm and 140 mm; and The second thickness (T2) is between 30 mm and 120 mm.

4. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to claim 2, wherein, The first thickness (T1) is between 30 mm and 120 mm.

5. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to claim 2, wherein, The second thickness (T2) is between 50 mm and 70 mm.

6. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to any one of claims 1 to 5, wherein, The bottom inflatable airbag (420) has a first height (H1) and a second height (H2), the first height (H1) being perpendicular to the longitudinal axis (X) and corresponding to the end regions (R1, R3), and the second height (H2) being perpendicular to the longitudinal axis (X) and corresponding to the center region (R2); and The first height (H1) is greater than the second height (H2).

7. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to claim 6, wherein, The first height (H1) is between 50 mm and 200 mm; and The second height (H2) is between 40mm and 180mm.

8. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to claim 6, wherein, The first height (H1) is between 70mm and 150mm.

9. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to claim 6, wherein, The second height (H2) is between 50mm and 120mm.

10. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to any one of claims 1 to 5, wherein, At least one of the side-inflatable airbags (530) has a trapezoidal shape.

11. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to any one of claims 1 to 5, wherein, At least one of the side-inflatable airbags (530) has two generally parallel edges (531 / 1, 531 / 2), the two generally parallel edges (531 / 1, 531 / 2) comprising a shorter edge and a longer edge; and in, The shorter edge is closer to the central region (R2) than the longer edge.

12. The airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to any one of claims 1 to 5, wherein, The central region (R2) is closer to the fold line (631) than the side closer to the opening of the U-shape.

13. The airbag device (700, 800) according to any one of claims 1 to 5, further comprising at least one fluid supply connector (722, 732) for inflating and / or deflating the bottom inflatable airbag (320, 420, 720, 920, 1020, 1120) and / or at least two of the side inflatable airbags (330, 530, 630, 730, 830, 930, 1030, 1130).

14. The airbag device (800) according to any one of claims 1 to 5 further includes at least one fluid supply interconnect (833), at least one of the fluid supply interconnects (833) for connecting at least two of the bottom inflatable airbags (320, 420, 720, 920, 1020, 1120) and any one of the at least two side inflatable airbags (830).

15. The airbag device (800) according to claim 14, wherein, The fluid supply interconnect (833) connects at least two of the side-inflatable airbags (830) to each other.

16. The airbag device (900) according to any one of claims 1 to 5, wherein, The bottom inflatable airbag (920) includes at least one hole (H) for connecting to at least one of the at least two side inflatable airbags (930).

17. The airbag device (900) according to claim 16, wherein, The bottom inflatable airbag (920) includes at least two first flexible material sheets (S1, S2). Each of the at least two side-inflatable airbags (930) includes at least two second flexible material sheets (S3, S4). Wherein, one of the at least two first flexible material sheets (S1, S2) includes the hole (H); and Wherein, one of the at least two second flexible material sheets (S3, S4) includes the hole (H).

18. The airbag device (900) according to claim 17, wherein, The first flexible material sheet including the hole (H) of the at least two first flexible material sheets (S1, S2) is bonded to the second flexible material sheet including the hole (H) of the at least two second flexible material sheets (S3, S4).

19. The airbag device (1000) according to any one of claims 1 to 5, wherein, The bottom inflatable airbag (1020) and one or more of the at least two side inflatable airbags (1030) include at least one connecting strap (1023 / 1-1023 / 2, 1033 / 1-1033 / 4), which is configured to be connected to the frame (210, 310, 1210).

20. The airbag device (1000) according to claim 19, wherein, The at least one connecting strap (1023 / 1-1023 / 2, 1033 / 1-1033 / 4) is configured to be connected to the frame of the neck brace (N) or the frame of the seat (S).

21. A neck brace (N), comprising: Frames (210, 310, 1210) The airbag device (200, 300, 700, 800, 900, 1000) according to any one of claims 1 to 20 is mounted on the frame (210, 310, 1210).

22. The neck brace (N) according to claim 21, wherein, The frame includes a connection device (312) for connecting to a headrest (H) and / or to one or more rods (R), which connect the headrest (H) to the seat (S).

23. The neck brace (N) according to claim 21 or 22, wherein, The frame includes a bottom mounting device (1211) for connecting to the bottom inflatable airbags (320, 420, 720, 920, 1020, 1120), and at least two side mounting devices (1213 / 1, 1213 / 2) for connecting to at least two of the side inflatable airbags (330, 530, 630, 730, 830, 930, 1030, 1130), respectively.

24. A seat (S) having a neck brace (N) comprising an airbag device (200, 300, 700, 800, 900, 1000) according to any one of claims 1 to 20.

25. A seat (S) having a cushion support (C), the cushion support (C) comprising an airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to any one of claims 1 to 20.

26. A seat (S) having a cushion support (C), the cushion support (C) comprising two airbag devices (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A) according to any one of claims 1 to 20, one airbag device for each leg.

27. An extendable seat support (EC) comprising an airbag device (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) and a frame (1310) according to any one of claims 1 to 20.

28. An extendable seat support (EC) comprising two airbag devices (200, 300, 700, 800, 900, 1000, 1100A, 1100B, 1100C, 1300A, 1300B, 1300C) according to any one of claims 1 to 20 and a frame (1310), with one of the airbag devices used for each leg.

29. The extendable seat support (EC) according to claim 27 or 28, wherein, The frame (1310) is pivotally mounted to the seat (S).

30. A seat (S) having an extendable cushion support (EC) according to any one of claims 27 to 29.

Images