AIRBAG FOR HEAD PROTECTION
An airbag system including an airbag and a detachable shell enclosing the airbag when the airbag is in a non-inflated state, and at least one size adjustment mechanism. Further, an inflatable helmet having such airbag system, and an item of apparel having such airbag system are provided.
The present invention relates to airbags. More specifically, the present invention relates to a wearable airbag for protecting a user's head.
BACKGROUNDAirbags for protection of a person's head are known in the art, for example through DE19754541A1 and through WO01/54523A1. A problem with these devices is that it is not adaptable for different users. Different users have different physical dimensions, such as width or length of the neck. Also, different users are comfortable with different tightness of the device when worn. A user may also want to adapt the size of the device according to the clothes he/she is wearing. Bulky winter clothes could require a larger sized device, whereas light summer clothes could allow for a smaller sized device.
It would therefore be beneficial for the user to be able to adapt the size of the device to his/her specific needs.
SUMMARYAn object of the present invention is to provide a new type of airbag system which is improved over prior art and which eliminates or at least mitigates the drawbacks discussed above. More specifically, an object of the invention is to provide an airbag system that is ergonomic and adaptable to different users. These objects are achieved by the technique set forth in the appended independent claims with preferred embodiments defined in the dependent claims related thereto.
In a first aspect of the invention, an airbag system is provided, the system comprising an airbag which upon inflation forms a helmet. The system further comprises a detachable shell enclosing the airbag when the airbag is in a non-inflated state and at least one size adjustment means. This airbag system is advantageous in that the size of the system is adjustable such that it can be adapted to suit different users.
In one embodiment, the size adjustment means is arrangeable between the airbag and the shell. This provides for easy access to the size adjustment means such that the size is easily adjustable.
The airbag system may be arranged as a collar, and the size adjustment means may be arranged to adjust the diameter of the collar from a larger diameter to a smaller diameter. The collar is thus adjustable such that it suits different users.
In one embodiment, the at least one size adjustment means comprises a set of pads which are arrangeable between the airbag and the shell, or on the exterior surface of the shell facing the user. By arranging the pads in the airbag system, the size of the system is adapted to the individual conditions for every user. The user may himself choose how many pads to use. Different sizes of pads or elongate pads may be provided such that different adjustments may be obtained. This is advantageous if the user wants several adjustment options.
The at least one size adjustment means may comprise an elongate pad which is arrangeable between the airbag and the shell, or on the exterior surface of the shell facing the user. The size of the airbag system may thus be adapted.
Alternatively, the at least one size adjustment means comprises an elastic band or strap, arrangeable between the airbag and the shell, or on the exterior surface of the shell facing the user.
Additionally, the size adjustment means may comprise a set of additional detachable shells having smaller sizes compared to the detachable shell. By using another shell, it is possible to adjust the collar according to the physical dimensions and properties of the user, or according to other items worn by the user.
In one embodiment, the size adjustment means is an inflatable tube, and further, the airbag system comprises a valve for inflation of the inflatable tube. The valve provides for different amount of air being provided in the inflatable tube, and the size of the collar is thus continuously adjustable.
Preferably, the airbag system further comprises a pump for inflation of the inflatable tube. This has the advantage that the pump is always available if a size adjustment is required.
In a preferred embodiment, the size adjustment means comprises a band or strap, arrangeable between the airbag and the shell, or on the exterior surface of the shell facing the user.
The airbag system may further comprises a strap fastening means arranged at an end of the collar to fasten the at least one strap such that each strap is divided into two loops with the strap fastening means between them. This has the advantage that the loops are easy and intuitive to manipulate, and the size of the collar is continuously adjustable.
Preferably, the airbag system comprises a strap fastening means arranged at an end of the collar to fasten an at least one strap arranged through the fastening means, wherein the fastening means comprises a spool member inside a housing and the strap is secured to the spool member. This has the advantage that there are no loose ends and continuous and intuitive control over the size of the collar is achieved. Each of the above options provides a user with the ability to adjust the collar according to the physical dimensions and proportions of the user, or according to other items worn by the user.
In a second aspect of the invention, an inflatable helmet is provided comprising the above airbag system. It is preferred that it is possible to adjust the size of the inflatable helmet. This is possible with such an airbag system.
In a third aspect of the invention, an item of apparel is provided comprising the above airbag system. It is preferred that it is possible to adjust the size of the item of apparel. This is possible with such an airbag system.
In one embodiment, the item of apparel is a collar. This is beneficial since it is an item worn by the user in the near his/her head, which is to be protected by the airbag of the airbag system.
Embodiments of the invention will be described in the following; references being made to the appended diagrammatical drawings which illustrate non-limiting examples of how the inventive concept can be reduced into practice.
Hereinafter, certain embodiments will be described more fully with reference to the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided by way of example so that this disclosure will be thorough and complete, and will fully convey the scope of the invention, such as it is defined in the appended claims, to those skilled in the art.
As is also shown in
In some embodiments, the position of the different parts of the interlocking means may determine if the airbag system configured to controlling the inflation of the airbag is turned on (i.e. having power) or turned off, and if its turned on in an active state or in an idle state. The interlocking means is configured to be arranged in a first locking position or a second locking position when the first fastening body and the second fastening body are connected to each other. When the interlocking means is in a first locking position, the system is automatically put into an idle state and when the interlocking means is in a second locking position, the system is automatically put into an active state.
The inflated airbag helmet 100 is schematically shown in
The airbag 20 may e.g. comprise an inner bag suitable for inflation surrounded by an outer bag. Both the inner bag and the outer bag are formed of a flexible material in order to be folded and stored within the collar 11 prior to inflation. The inflated helmet 100 shape of the airbag 20 must therefore by defined by the flexible airbag 20 itself, which previously required complex sewing techniques of an outer bag surrounding the inner bag.
The method of constructing the airbag comprises forming the helmet shaped airbag 100 having a head and neck protecting shape from a substantially flat piece of material.
Construction of the airbag 20 may e.g. be performed by sewing the seams of the airbag whilst the airbag is maintained in a flat format. Optionally, the airbag may be manufactured by a one piece woven material such that a flat bag is formed. By constructing the airbag 20 with the material in a flat format the costs and complexity associated with sewing are reduced.
Examples of how to provide the airbag as a double-bag configuration is disclosed in WO2012044245 by the same applicant.
When the airbag system is not worn by the user, the collar 11 can be put in a resting position to allow the user to carry the collar 11 easier for example by putting it in a bag. All electronics in the airbag system is turned off when the airbag system is put in the resting position. In the resting position the collar is connected such that the diameter of the collar is greatly reduce as is shown in the exemplary embodiments in
Three different resting positions are shown in
In the embodiment shown in
In order to adapt the collar 11 such that it suits different users it is preferred if the dimensions of the collar 11 are alterable. If the size of the collar 11 is fixed, a user 3 may not be able to use it if he/she is wearing e.g. a scarf or a high-necked piece of clothing, or wearing the collar 11 becomes uncomfortable. Therefore, the collar 11 is provided with size adjustment means such that the ergonomics of the collar 11 is improved.
In
The size adjustment means may e.g. comprise a set of pads 15, an elongate pad 16, an inflatable tube 19, an elastic band 23, at least one elastic strap 26a, 26b or one or more additional shell 13′. The size adjustment means preferably comprises at least one strap 56a, 56b arranged through a fastening means 58 comprising a spool or arranged in two loops divided by a fastening means 58. In one embodiment, the size adjustment means comprises a set of pads 15. The pads 15 can be positioned at the shell 13, either on its interior side or its exterior side such that the inner diameter of the collar 11 is decreased. In
The size of the pads 15 may vary such that different sizes, i.e. diameters, of the collar 11 can be obtained. Also the number of pads 15 used can be chosen by the user 3 such that the collar 11 is optimally adjusted to him/her. As is readily understood the pads 15 could also be positioned on the inner side of the shell 13, i.e. between the shell 13 and inner piece of material of airbag 121a.
Another option, shown in
In another embodiment, shown in
In another embodiment, the size adjustment means comprises an elastic band, or strap, 23. The elastic band 23 may e.g. be located between the shell 13 and the outer piece of material 121b of the airbag 20. In order to adjust the size of the collar 11 the elastic band 23 is stretched and fastened by means of suitable fastening means 24 either to the shell 13 or to the airbag 20 such that the band 23 is kept in its stretched state. Thus the size of the collar 11 is decreased. This is shown in
As another option, shown in
In yet another option, shown in
In
The outer shell 13 comprises a number of openings 27a, 27b corresponding to the number of elastic straps. The openings 27a, 27b may be arranged either on the side facing the neck of an intended user or on the opposite side. Preferably, the openings 27a, 27b are arranged in close conjunction to each end of the joint portion provided with an interlocking means 12. The openings 27a, 27b are arranged to receive the elastic straps 26a, 26b so that the user can pull the straps 26a, 26b until a desired diameter of the collar 11 is achieved. Once the user pulls the straps 26a, 26b at each end, the size of the collar is decreased. At each end of the collar 11, at the joint portion, a strap fastening means 28 is arranged. The strap fastening means 28 prevents the elastic straps 26a, 26b from moving unintentionally. Preferably, the strap fastening means 28 is a plate shaped device having openings adapted for receiving the straps 26a, 26b. The ends of the elastic straps 26a, 26b may be tied or arranged with an end piece so as to ensure that the straps 26a, 26b are attached to the strap fastening means 28.
In the embodiment illustrated in
In the embodiment illustrated in
In a further, preferred embodiment the size adjusting means includes only one strap being maneuverable by means of a fastening means 58; the fastening means 58 may in such embodiment have a spool member inside a housing. The strap is secured to the spool member such that when the spool member is rotated in a tightening direction (e.g. by means of a knob or similar), the strap will be drawn into the housing. The spool member may have spool teeth around its periphery, such that the spool member is locked in position after desired tightening. Release of the spool member may e.g. be achieved by pulling the knob axially away from the housing. In case the spool member is spring biased, automatic untightening of the strap will be immediately effected. A feature in common for all the above described embodiments is that it is the outer shell 13 that decides the maximum size, i.e. the diameter D of the collar 11. The size can be adjusted to become smaller in order to suit the individual user 3. An advantage relevant for all embodiments is that the user ergonomics is improved.
Claims
1. An airbag system comprising an airbag and a detachable shell enclosing the airbag when the airbag is in a non-inflated state, and at least one size adjustment mechanism.
2. The airbag system according to claim 1, wherein the airbag system is arranged as a collar, wherein the size adjustment mechanism is arranged to adjust a diameter of the collar from a larger diameter (D) to a smaller diameter (d).
3. The airbag system according to claim 1, wherein the at least one size adjustment mechanism comprises a set of pads, arrangeable between the airbag and the shell or at an exterior side of the shell facing a neck of an intended user.
4. The airbag system according to claim 1, wherein the at least one size adjustment mechanism comprises an elongate pad, arrangeable between the airbag and the shell or at an exterior side of the shell facing a neck of an intended user.
5. The airbag system according to claim 1, wherein the at least one size adjustment mechanism comprises an elastic band, arrangeable between the airbag and the shell, at an exterior side of the shell facing a neck of an intended user or at an inside wall of the shell.
6. The airbag system according to claim 1, wherein the size adjustment mechanism comprises a set of additional detachable shells having smaller sizes compared to the detachable shell.
7. The airbag system according to claim 1, wherein the size adjustment mechanism is an inflatable tube, and wherein the airbag system further comprises a valve for inflation of the inflatable tube.
8. The airbag system according to claim 7, further comprising a pump for inflation of the inflatable tube.
9. The airbag system according to claim 2, wherein the at least one size adjustment mechanism comprises at least one elastic strap, arrangeable between the airbag and the shell, at an exterior side of the shell facing a neck of an intended user or at an inside wall of the shell.
10. The airbag system according to claim 9, wherein the size adjustment mechanism further comprises a strap fastener arranged at each end of the collar to fasten the at least one elastic strap when a desired diameter of the collar is achieved.
11. The airbag system according to claim 10, wherein the strap fastener is a plate shaped device having openings adapted for receiving the elastic straps.
12. The airbag system according to claim 9, wherein the size adjustment mechanism further comprises a strap fastener arranged at the exterior side of the shell which is not facing the neck of the intended user.
13. The airbag system according to claim 12, wherein the strap fastener comprises a plurality of protrusions to fasten the at least one elastic strap.
14. The airbag system according to claim 2, wherein the at least one size adjustment mechanism comprises at least one strap in the form of a loop, arrangeable between the airbag and the shell, at an exterior side of the shell facing a neck of an intended user or at an inside wall of the shell.
15. The airbag system according to claim 14, wherein the size adjustment mechanism further comprises a strap fastener arranged at an end of the collar to fasten the at least one strap such that each strap is arranged through the strap fastener.
16. The airbag system according to claim 15, wherein the strap fastener comprises a spool member inside a housing.
17. The airbag system according to claim 16, wherein the at least one strap is secured to the spool member such that when the spool member is rotated in a tightening direction, the at least one strap will be drawn into the housing.
18. The airbag system according to claim 17, wherein the spool member has teeth around its periphery such that the spool member is locked in position after desired tightening.
19. The airbag system according to claim 17, wherein the spool member is spring biased.
20. The airbag system according to claim 15, wherein the strap fastener is arranged such that each strap is divided into two loops with the strap fastener between them.
21. The airbag system according to claim 20, wherein the strap fastener divides the at least one strap into a first loop, which extends around the collar, and a second loop, which extends freely from the strap fastener.
22. The airbag system according to claim 21, wherein the first loop is larger than the second loop.
23. The airbag system according to claim 21, wherein a size of the first loop is inversely proportional to a size of the second loop.
24. The airbag system according to claim 23, wherein the strap fastener are arranged to fasten the at least one strap when a desired diameter of the collar is achieved.
25. The airbag system according to claim 15, wherein the strap fastener comprises a clamp and a spool.
26. An inflatable helmet comprising an airbag system according claim 1.
27. An item of apparel comprising the airbag system according to claim 1.
28. The item of apparel according to claim 27, the item being a collar.
Type: Application
Filed: Jun 28, 2018
Publication Date: May 21, 2020
Inventor: Heino WENDELRUP (Bjaerred)
Application Number: 16/625,356