JP2010132016A - Air bag for neck part, and portable kit of air bag for neck part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an air bag for a neck part capable of preventing sprain of cervical vertebrae caused by impact which an occupant of a vehicle receives. <P>SOLUTION: The air bag for the neck part and the portable kit of the air bag for the neck part are provided with: an inflatable protection part for protecting the neck part from the impact; an inflation substance storage part for generating an inflation substance capable of inflating the protection part or storing the inflation substance; an inflation substance feeding part for feeding the inflation substance to the protection part; and an operation part for moving the inflation substance from the inflation substance storage part to the protection part at impact. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cervical airbag and a portable kit for a cervical airbag, and more particularly, a cervical airbag that can prevent a cervical spine and the like caused by an impact received by a vehicle, for example, an automobile occupant, and The present invention relates to a portable kit capable of easily carrying the cervical airbag.

  When the vehicle is in an accident when it is in the vehicle, in particular, when the vehicle collides or the vehicle collides, the passenger's body greatly shakes back and forth or left and right according to the law of inertia. To do. At this time, if the head of the occupant shakes greatly, a cervical spine may be suffered. In view of this, devices that protect the neck of the passenger, such as airbags, have been created.

  Patent Document 1 describes a “neck back region protection airbag module”. “Neck back region protective airbag module” is a “cervical back region protective airbag module of the type intended to be used by a user performing an activity that needs to protect the neck back region, Inflating gas stored in a cylinder or tank (13), at least one diffuser (14) for the gas, a ignitable activation system (16) for causing expansion of the gas, and operating the system Supports and contains at least one control signal receiver (12, 12 '), an airbag (11) configured to inflate upon inflation of the gas when receiving the control signal, and various components The attachment means which can be arrange | positioned in the position which can be removed with the housing | casing (10) for performing, and the headrest (2) or helmet (1) of a motor vehicle It has been described as to being "provided (see claim 1 and 8 of Patent Document 1).

  Patent Document 2 describes a “head and neck protecting airbag device”. “Head and neck protecting airbag device” is a “head and neck protecting airbag device in which an airbag bag body is deployed between the headrest and the head. An airbag that is disposed on at least one of the headrest support member that is movably supported in the vertical direction, and the headrest and the seatback, and that is deployed between the front portion of the headrest and the headrest and the seatback. And a deployment force of the airbag bag body pushes up the headrest ”(see claim 1 of Patent Document 2 and FIG. 1).

  Since the airbags described in Patent Documents 1 and 2 have a shape that comes into contact with the neck, the neck can be protected from the rear in the event of a vehicle accident. However, depending on the direction of impact received by the occupant, the head of the occupant may swing forward, which may cause a cervical spine or the like.

  Patent Document 3 describes a “wheelchair airbag device”. The “wheelchair airbag device” is a wheelchair airbag device including an airbag that can be inflated to a predetermined position for a wheelchair user and an inflating means that inflates the airbag. And a control means for inflating the airbag by the inflating means when the collision detecting means detects a collision with the object "(Patent Document 3) (See claim 1 and FIG. 1).

  However, the airbag described in Patent Document 3 is for a wheelchair. In a vehicle that moves at a higher speed than a wheelchair, such as a passenger car, the required performance of the airbag is significantly higher than that of a wheelchair airbag. Therefore, the airbag for a wheelchair described in Patent Document 3 has been difficult to apply widely to vehicles.

  Therefore, there has been a demand for a cervical airbag that can more reliably prevent cervical spine and the like than the conventional airbag described above. Furthermore, since it has been difficult to carry a conventional airbag that tends to be large-scale, a portable kit that can easily carry an airbag has been demanded.

Special table 2008-515706 gazette Japanese Patent Laid-Open No. 10-6907 JP 2005-224482 A

  The problem to be solved by the present invention is to provide a cervical airbag that can prevent cervical sprains and the like caused by an impact received by a vehicle occupant and a portable kit that can carry the cervical airbag.

As means for solving the problems,
Claim 1 is “a protective part that is inflatable and protects the neck from impacts;
Generating an inflating body for inflating the protective part, or an inflating body housing part for housing the inflating body;
An inflatable body delivery section for delivering the inflatable body to the protection section;
A neck airbag ”characterized by comprising an operating part that moves the inflating body from the inflating body accommodating part to the protection part at the time of impact;
Claim 2 is the “cervical airbag according to claim 1, wherein the protective part is a cylindrical body that can surround the neck.”
According to a third aspect of the present invention, the “protecting part, the expanding body accommodating part, the expanding part sending part detachably attachable to the protecting part and the expanding body accommodating part, the actuating part, the protecting part, and the inflating part are provided. A cervical airbag carrying kit comprising: a body accommodating portion, a housing for accommodating the inflatable body delivery portion, and the operating portion.

  According to the present invention, it is possible to provide a cervical airbag that can prevent cervical sprains and the like caused by an impact received by a vehicle occupant. In addition, according to the present invention, since the inflated protective part surrounds the neck, the head of the occupant is not greatly shaken back and forth and from side to side, and cervical air can be prevented more reliably. This is preferable because a bag can be provided.

  Furthermore, according to the present invention, it is possible to provide a portable kit for a cervical airbag that can easily carry the cervical airbag. This kit for carrying a neck airbag can protect the neck of a passenger on the existing vehicle at the time of a vehicle collision without modifying the existing vehicle.

  A neck airbag according to the present invention will be described with reference to the drawings.

  FIG. 1 shows a partial cross-sectional schematic view of a cervical airbag 1 according to an embodiment of the present invention. The cervical airbag 1 includes a protection part 2, a gas generation / accommodation part 3, a gas delivery part 4, and an operation part 5.

  The protection part 2 is a bag that can be inflated by an inflating body and protects the neck from an impact. The protection part 2 shown in FIG. 1 is formed in a cylinder so that the neck part can be surrounded. The protection part 2 has an expansion part 6 and an insertion hole 7. The inflating part 6 is a part into which the inflating body is fed, and is inflated by the inflating body fed into the inside. The insertion hole 7 is a through-hole through which the user's neck is inserted. If the protection part 2 is a cylinder as shown in FIG. 1, the entire periphery of the neck can be surrounded by the protection part 2 inflated by the expansion body. In either case, cervical spine can be reliably prevented.

  The length in the axial direction of the protection unit 2 may be any dimension that can protect the neck, and is preferably a length that covers the user's neck when the expansion unit 6 expands, for example, the user's clavicle. It should be the length from the lower end of the temporal bone. Moreover, it is preferable that the diameter of the insertion hole 7 is a magnitude | size which closely_contact | adheres to a user's neck part, without compressing a user's airway, when the expansion part 6 expand | swells. The material of the protection part 2 may be any material that does not change in quality even when the expansion body is accommodated inside the protection part and can be instantaneously expanded. For example, a synthetic resin such as nylon 66, Examples include chloroprene rubber and silicon rubber. Here, “expansion” means the surface area of the protective part when the inflated body is pressed into the protective part, rather than the surface area of the protective part when the inflatable body is not accommodated in the protective part that is the bag. The material itself expands by having an elastic force so that it is larger, and the surface area of the protection part when the expansion body is not accommodated in the protection part that is the bag body And the surface area of the protection part when the expansion body is press-fitted into the protection part is substantially the same, and includes a mode in which the bag body that has been folded or degenerated simply expands.

  For example, as a preferable aspect of the protection part 2, the aspect by which the expansion body was folded in the axial direction in the state which is not filled in the protection part 2, and has become flat can be mentioned. If the cylindrical protection part 2 is flat in the axial direction, it is easy for the user to wear the cervical airbag, and the user wearing the cervical airbag concentrates on driving the vehicle. It is easy and can be made compact by folding it small when not in use, and is convenient for storage, for example.

  The gas generating / accommodating section 3 is an example of an inflatable body accommodating section in the cervical airbag of the present invention. The gas generation accommodation part 3 shown by FIG. 1 accommodates the expansion body which can expand the protection part 2. FIG. The inflatable body in the cervical airbag 1 shown in FIG. 1 is a gas.

  The inflatable body that can be used for the neck airbag according to the present invention is not particularly limited as long as the protective portion can be inflated and the protective portion is not altered or denatured, for example, gas, liquid, foam, etc. Can be used. Further, carbon dioxide, nitrogen, rare gas, etc. are preferable if the expanding body is a gas, and water is preferable if it is a liquid.

  The inflatable body accommodating portion in the cervical airbag of the present invention may accommodate the inflatable body itself, and a substance that generates the inflatable body, for example, a substance that can generate the inflatable body by chemical reaction or combustion. It may be accommodated. Therefore, the gas generating and storing unit 3 may be, for example, a gas cylinder that stores carbon dioxide, a substance that can generate carbon dioxide through a chemical reaction in the gas generating and storing part 3, and a substance that generates gas by combustion. It may be accommodated. As a preferable aspect of the gas generation accommodating part 3 which accommodates the substance which can generate | occur | produce gas, the aspect which fills the gas generation accommodating part 3 with a granular gas generating agent, for example is preferable, and the ignition agent which is an example of the below-mentioned action | operation part and By attaching the igniting means, there can be mentioned an embodiment in which the igniting agent is ignited to generate a gas as an expanding body from the gas generating agent.

  After the protection part 2 is expanded, the protection part 2 may be slightly contracted so that the user can easily escape from the accident vehicle. That is, in the cervical airbag 1 in which the inflatable body is gas, it is preferable to provide a hole in the protective part 2 through which gas is gradually released. Further, when the expansion body is a liquid, if the expansion body housing portion and the protection portion are in communication after the protection portion has expanded, the liquid can flow back into the expansion body housing portion. The part contracts due to the backflow of the liquid.

  The shape of the gas generating and accommodating portion 3 may be a shape that does not break under high pressure when a high-pressure gas or liquid is press-fitted therein, and includes, for example, a shape formed of a cylindrical shape or a curved surface. it can. An example of the gas generating / accommodating section 3 is a pressure-resistant container having the shape described above. In addition, what is necessary is just to use the expansion body accommodating part which comprises various shapes, when the inside of the expansion body accommodating part of the airbag for neck parts which concerns on this invention is not high voltage | pressure. Moreover, as a material of the gas generation accommodating part 3, a metal, a plastic, ceramics, etc. can be mentioned.

  The installation location of the gas generating / accommodating unit 3 is not particularly limited, and may be attached to the user's body, may be directly attached to the protective unit 2, or may be an appropriate position in the vehicle. What is necessary is just to determine the magnitude | size of the gas generation accommodation part 3 according to the volume of the installation location accept | permitted, and the volume of the expansion body accommodated.

  The gas delivery unit 4 sends gas from the gas generation housing unit 3 to the protection unit 2. In addition, as a method in which the gas delivery part 4 sends out gas into the protection part 2, the method of sending gas into the protection part 2 positively with a pump etc. can be mentioned. Further, when gas is enclosed in the gas generating / accommodating section 3 at a high pressure, the gas can be automatically sent out simply by communicating the gas generating / accommodating section 3 and the protecting section 2, so that forced expansion is performed. There is no need to provide body delivery means. Therefore, as the gas delivery part 4, for example, an expansion body delivery means such as a pump, or a tubular flow passage that connects the gas generation accommodating part 3 and the protection part 2 and a valve that breaks at a constant pressure can be employed. .

  As the material of the gas delivery part 4, since the inside of the gas delivery part 4 often becomes a high pressure when the expansion body is delivered instantaneously into the protection part 2, it has a strength that can withstand the high pressure. What is necessary is just to select the material which does not change and modify | denature by the expanded body sent out, for example, a metal, a plastic, or ceramics. What is necessary is just to determine as a magnitude | size of the gas delivery part 4 according to the distance from the protection part 2 to the gas generation accommodation part 3. FIG.

  Further, in order to contract the protective part 2 after the protective part 2 is expanded, the protective part 2 is in communication with the outside after the expansion body has moved from the gas generating / accommodating part 3 to the protective part 2 as described above. A ruptureable film body, such as a valve (not shown), is provided in the gas delivery section 4 or a protective film 2 itself, or a ruptureable film body or a gas is gradually formed in an appropriate part of the protection section 2 itself. It is possible to employ the provision of a pinhole that comes off. When the gas moves from the gas generating / accommodating section 3 to the protecting section 2, the communication state between the gas generating / accommodating section 3 and the protecting section 2 is maintained if the film body is broken by the pressure of the gas. Therefore, since the gas can flow backward from the protection part 2 to the gas generation / accommodation part 3, the protection part 2 can be contracted after being once expanded.

  The operating unit 5 is a member that moves gas from the gas generating / accommodating unit 3 to the protecting unit 2 at the time of impact. That is, as the operation unit 5, an aspect of outputting an electric signal for operating the gas generation storage unit 3 so that the gas moves from the gas generation storage unit 3 at the time of impact, or the gas generation storage unit 3 and the protection unit 2 at the time of impact, It is possible to adopt a mode having a mechanical structure that allows communication. For example, as an aspect in which the operation unit 5 outputs an electric signal, a case where the electric signal is transmitted by a conductive wire extending from the operation unit 5 to the gas generation housing unit 3 and a case where the electric signal is output without depending on the conductive wire are provided. The case where it is the case of the radio | wireless which installs the transmitter and receiver which can be input is mentioned.

  Note that FIG. 1 shows a wireless case, and the operation unit 5 having a transmitter (not shown) can output an electrical signal to the gas generation housing unit 3 to which a receiver (not shown) is attached. It has become. In order to activate a transmitter that transmits an electric signal to the gas generating / accommodating section 3, for example, an impact sensor that senses an impact received by a vehicle or a user may be used. As the impact sensor for detecting impact, for example, an impact sensor necessary for the operation of an airbag installed in a driver's seat and a passenger seat of a passenger car may be diverted. For the operation of the neck airbag according to the present invention, A new impact sensor may be provided. In addition, since a seat belt is worn when riding a vehicle such as a passenger car, a tension sensor that senses the tension generated in the seat belt when the user is shaken can be used.

  Moreover, although not shown in figure, as an aspect in which the action | operation part 5 has a mechanical structure, the aspect which has an igniting agent, an ignition means, and the strip | line extending from an ignition means can be mentioned, for example. In this aspect, for example, one end of the strip is fixed to the seat of the vehicle and the other end is fixed to the ignition means. When the strip is detached from the ignition means at the time of impact, the ignition means is activated to ignite the ignition agent. What is necessary is just to comprise so. As a result, when the user wearing the cervical airbag according to the present invention can shake, for example, forward due to the impact of an accident, the other end of the strip fixed to the vehicle seat or the like is detached from the ignition means. By doing so, the ignition means is activated, and for example, the gas generating agent filled in the gas generating / accommodating portion can be ignited via the igniting agent.

  Next, FIG. 2 is an external view of a cervical airbag 101 which is another embodiment of the present invention. The shape of the protective part 2 in the cervical airbag 1 is a cylindrical body, whereas the shape of the protective part 21 in the cervical airbag 101 is a plate-like shape that can be wound around a user's neck. The neck airbag 1 and the neck airbag 101 are different in that they are belt-like.

  When the neck part airbag 101 is explained in full detail, the protection part 21 is a bag body formed in plate shape or belt shape. That is, the entire protective portion 21 is the inflatable portion 6 in FIG. 1, and in the state shown in FIG. 2, the protective portion 21 is flat due to the absence of an inflatable body formed in the bag shape. The gas generating / accommodating section 3 is a small gas cylinder, and the gas delivery section 4 is a tubular body formed by connecting the gas generating / accommodating section 3 and the protection section 21. The gas generating / accommodating section 3 is attached to the surface of the protection section 21. When the neck airbag 101 is wound around the neck of the user, the locking portion 8 and the engaging portion 9 are provided so that the wound state can be maintained. The locking portion 8 is a hook-shaped member, can be hooked on the semicircular engaging portion 9, and can be formed with a commercially available hook-and-loop fastener or the like.

  As shown in FIG. 2, the planar shape of the protection part 21 is a rectangle. The length of the long side of the protection part 21 is such that it can make at least one round of the neck when wound around the user's neck, and does not compress the user's airway even if the protection part 21 expands. . The length of the short side of the protection part 21 is good to be the length which covers a user's neck part similarly to the length of the axial direction of the protection part 2, for example, the length from a user's clavicle to the lower end of temporal bone. .

  The material of the protective part 21 may be a material that can be expanded instantly without being changed even if the expansion body is sent to the inside, as in the protective part 2, for example, a resin composition, specifically nylon 66, Chloroprene rubber and silicon rubber can be used.

  Although the operating part is not shown in FIG. 2, as the operating part in the cervical airbag 101, as in the operating part 5 in the cervical airbag 1, an electrical signal is sent to the gas generating and accommodating part 3. The means for outputting may be provided separately from the gas generating / accommodating section 3.

  Here, a mounting method, a usage method, and an operation of the cervical airbag according to the present invention will be described with reference to FIGS.

  FIG. 3 shows a state in which the user wears the cervical airbag 1 before operation. FIG. 4 shows a state in which the user wears the neck airbag 1 after operation.

  The neck airbag 1 shown in FIGS. 3 and 4 is provided with a member not shown in FIG. It is the holding | maintenance part 10 and the accommodating part 11 which hold | maintain the gas generation accommodating part 3 in a fixed position. The holding unit 10 is a flexible plate body that hangs down from the protection unit 2 and is made of the same material as the protection unit 2 or a similar soft material. The holding part 10 is provided with a storage part 11 having a bag shape partially opened. The accommodating part 11 accommodates a part of the gas generating accommodating part 3 in the inside thereof, whereby the gas generating accommodating part 3 depending from the inflating part 6 is held at a fixed position. 3 and 4, similarly to FIG. 2, the operating unit 5 shown in FIG. 1 is not shown, but gas movement from the gas generating / accommodating unit 3 into the protective unit 2 can be started. The operating part is provided separately. The gas generating / accommodating portion 3 is filled with a gas generating agent that generates gas by combustion.

  Since the cervical airbag 1 is made of a soft resin composition in which the protective portion 2 is deformable, the cervical airbag 1 is compressed in the axial direction of the protective portion 2 when the inflatable portion 6 is not inflated. The wearing of the cervical airbag 1 in which the protective part 2 is a cylinder is performed by first inserting the user's head from the top of the head into the insertion hole 7 and then the inflating part 6 contacting the user's shoulder. Achieved by lowering. Once the cervical airbag 1 is mounted, the head and neck are inserted through the insertion hole 7, so that the cervical airbag 1 is less likely to be detached from the user if it is in a stationary state.

  When the user receives an impact after wearing the cervical airbag 1, an operating portion (not shown) operates. For example, when an impact sensor mounted on a vehicle or a tension sensor of a seat belt senses an impact that may cause the user's head to shake, the transmitter outputs an electrical signal wirelessly to sense the impact from the sensor. When an electrical signal is input to a receiver (not shown) attached to the gas generating / accommodating section 3, an ignition means (not shown) is activated.

  An ignition means (not shown) ignites an igniting agent (not shown). By igniting the igniting agent, the igniting agent burns, so that the gas generating agent filled in the gas generating / accommodating portion 3 is ignited. When the gas generating agent burns, gas is generated in the gas generating / accommodating section 3.

  When gas is generated in the gas generating / accommodating section 3, the gas is sent out into the expansion part 6 of the protection part 2 via the gas sending part 4. FIG. 4 shows a state where the gas is sent into the inflatable portion 6 and inflated, and a part of the inflatable portion 6 is in contact with the lower jaw of the user.

  As shown in FIG. 4, the expansion portion 6 expands to such an extent that it abuts on the user's lower jaw, so that the user's head can be prevented from shaking greatly. In other words, the cervical airbag 1 can prevent cervical vertebra sprains and the like that can be worn by the user when the inflatable portion 6 is inflated. Preferably, when the expansion part 6 is in contact with the mandible from the temporal bone, that is, when the user's jaw is slightly pushed up, the user's head is almost fixed, so the head shakes. There is no allowance, and cervical sprains and the like can be more reliably prevented. In addition, since the diameter of the insertion hole 7 is approximately the same as the diameter of the neck of the user, the inflatable portion 6 comes into contact with the lower jaw even when the inflatable portion 6 is inflated. It does not detach from the user.

  Since the inflatable body 1 is a gas and the protective part 2 is made of a soft resin composition, the cervical airbag 1 can be reused by replacing the gas generating and accommodating part 2 as long as the protective part 2 is not damaged. It can be used. When a film body that can be broken by the gas pressure as described above is provided in the gas delivery part 4, it can be reused by replacing the gas delivery part 4 after use of the cervical airbag 1.

  If the time required for expansion of the protection unit 2 is about 0.01 to 0.1 seconds from the time of impact, the user's head is unlikely to shake greatly. Since the user suffers from cervical vertebra sprains and the like by tensioning the cervical muscles to return to the initial position when the head shakes, the protection unit 2 only needs to expand before the muscles are strained. Preferably, when the protective part 2 after expansion is somewhat contracted within about 0.1 to 0.3 seconds from the impact, it can act quickly after an accident.

  Next, FIG. 5 shows a state in which the user wears the cervical airbag 101 including the plate-like protection portion 21 shown in FIG. As shown in FIG. 5, the cervical airbag 101 is mounted by winding the user's neck part around the user's neck part around the protective part 21 and maintaining the wound state. Lock by.

  Although not shown, the operating portion of the cervical airbag 101 includes a transmitter, a receiver, and plug-opening means. When an appropriate sensor senses the impact, the transmitter outputs an electrical signal to the receiver. The receiver to which the electric signal has been input drives an opening means for opening the gas generation housing 3 which is a small gas cylinder. A gas is sent from the opened gas generating / accommodating part 3 into the inflating part 6 through the gas sending part 4. The expansion part 6 to which the gas has been sent expands. As a result, the cervical airbag 101, like the cervical airbag 1, has the user's head greatly shaken by the expansion of the protective portion 2 around the cervical portion of the user at the time of impact. It works as if there is no.

  Next, a kit for carrying a cervical airbag according to the present invention will be described with reference to FIG.

  FIG. 6 shows a portable kit for a cervical airbag (hereinafter sometimes simply referred to as “mobile kit”) 12 according to an embodiment of the present invention. The portable kit 12 includes a protection unit 21, a gas generation housing unit 3, a gas delivery unit 4, an operation unit 5, and a housing 13.

  The housing 13 includes a storage portion 14, a cover lid portion 15, and a handle 16. The storage unit 14 includes a folded protection unit 21, a gas generation storage unit 3 and a gas delivery unit 4 detached from the protection unit 21, and an operation unit capable of outputting an electrical signal for gas generation to the gas generation storage unit 3. 5 is a box that can accommodate 5 and has an open end. That is, the accommodating part 14 can accommodate the cervical airbag according to the present invention, for example, the cervical airbag 101 shown in FIGS. 2 and 5 in a disassembled state. The cover 15 is a plate that can close the open surface of the storage 14. The handle 16 is a grip portion that is attached to one outer peripheral surface of the storage portion 14.

  The storage part 14 and the cover part 15 are connected by a hinge 17 so that the cover part 15 can be rotated around the hinge 17.

A cover-like member 18 is attached to the cover 15 so that the cover 14 is not easily opened once the cover 15 is rotated and the open surface of the storage 14 is once closed. An insertion port 19 into which the hook-shaped member 18 can be inserted when the part 15 closes one end surface of the storage part 14 is provided in the storage part 14. The hook-like member 18 having a hook-like tip is inserted into the insertion port 19 and locked, so that the housing part can be easily closed even when the casing 13 is once closed and the user carries the portable kit 12, for example. 14 is not open.

  The material of the housing 13 is not particularly limited as long as it is not broken by the weight of the cervical airbag accommodated therein, but plastic, metal, resin molded body, wood, natural fiber, synthetic fiber, and the like can be used. . The size of the housing 13 may be any size as long as it can accommodate a neck airbag. The shape of the housing 13 is preferably a shape that allows the portable kit 12 to be stored and carried easily, and is preferably a cylindrical body or a rectangular parallelepiped shown in FIG. Furthermore, the housing 13 may be a waist pouch that can be attached to the user's waist or a shoulder bag that can be suspended from the user's shoulder, in addition to the hand-held type as shown in FIG. In addition, when the storage part 14 and / or the cover part 15 of the housing | casing 13 are transparent, it will become easy to visually recognize the airbag 101 for neck parts which is a storage thing.

  Further, a cushioning material can be provided on the inner wall surface of the housing 13 so that the cervical airbag according to the present invention which is a container is not damaged. Examples of the buffer material include resin foams such as urethane and polystyrene, and fiber aggregates such as natural fibers and synthetic fibers.

  As a method of using the portable kit 12, first, in the initial state, for example, the portable kit 12 is left indoors in a state where the cervical airbag 101 is accommodated and stored. Next, when the user of the cervical airbag 101 gets on the vehicle, the user holds the handle 16 of the portable kit 12 and carries it to the boarding vehicle. After the user reaches or gets into the vehicle, the housing 13 is opened, and each member of the cervical airbag 101 is taken out.

  As a method of assembling the cervical airbag 101, the folded protection portion 21 is first expanded. Next, the gas generating / accommodating unit 3 is attached to the protective unit 21. Further, the gas delivery unit 4 is connected to a gas inlet (not shown) provided in the protection unit 21. In addition, the operation unit 5 including a sensor for detecting an impact received by the vehicle is attached to a location where the impact in the boarding vehicle can be detected, for example, in the vicinity of the steering wheel, dashboard, ceiling, or door. Thus, if the user winds the cervical airbag 101 around the cervix, the cervical airbag 101 can be used.

  The cervical airbag and the cervical airbag portable kit according to the present invention are not limited to the description of the above-described embodiment and method of use shown with the drawings, as long as the object of the present invention can be achieved. Various design changes can be made.

FIG. 1 is a partial cross-sectional schematic view showing one embodiment of a cervical airbag according to the present invention. FIG. 2 is an external view showing another embodiment of the cervical airbag according to the present invention. FIG. 3 is a mounting view of the neck airbag shown in FIG. 1 before use. FIG. 4 is a mounting view of the neck airbag shown in FIG. 1 after use. FIG. 5 is a mounting diagram of the neck airbag shown in FIG. 2 before use. FIG. 6 is a schematic view showing an embodiment of a portable kit for a cervical airbag according to the present invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,101 Neck airbag 2,21 Protection part 3 Gas generation accommodating part 4 Gas delivery part 5 Actuation part 6 Expansion part 7 Insertion hole 8 Locking part 9 Engaging part 10 Holding part 11 Housing part 12 Neck part air Bag carrying kit 13 Housing 14 Storage unit 15 Covering unit 16 Handle 17 Hinge 18 Hook-shaped member 19 Insertion port

Claims (3)

A protector that is inflatable and protects the neck from impact;
Generating an inflating body for inflating the protective part, or an inflating body housing part for housing the inflating body;
An inflatable body delivery section for delivering the inflatable body to the protection section;
An cervical airbag, comprising: an actuating part that moves the inflating body from the inflating body accommodating part to the protection part at the time of impact.   The cervical airbag according to claim 1, wherein the protective part is a cylindrical body that can surround the cervical part.   The protection part, the expansion body accommodation part, the expansion part delivery part detachable from the protection part and the expansion body accommodation part, the operating part, the protection part, the expansion body accommodation part, the expansion A kit for carrying a cervical airbag, comprising a body delivery part and a housing for accommodating the operating part.

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