JP2017210222A - Air bag module - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air bag module having a special shape capable of protecting not a part but a whole body and applicable to a shape such as a rotary wing aircraft difficult to be protected.SOLUTION: This air bag module comprises: at least two or more main air bags comprising an outer cover that has a space provided therein by joining two base fabrics which are made of strong materials low in flexibility and become flat in shape during non-expansion at an outer peripheral end, and a highly flexible air tube which is stored in the outer cover and expanded in the outer cover during expansion to extend the outer cover into a prescribed shape during maximum expansion; and at least one or more spacer air bag arranged between the main air bags and comprising an outer cover that has a space provided therein by joining two base fabrics which are made of strong materials low in flexibility and become flat in shape during non-expansion at an outer peripheral end, and a highly flexible air tube which is stored in the outer cover and expanded in the outer cover during expansion to extend the outer cover into a prescribed shape during maximum expansion.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an airbag module including a plurality of differently structured airbags, and relates to an airbag module that can protect a three-dimensional object or the like without changing the overall capacity.

  2. Description of the Related Art Conventionally, an air bag for protecting a human body that is expanded and inflated by an inflating gas from an inflator filled with carbon dioxide gas is known.

  Since this type of standard inflator has a limited capacity, a plurality of inflators are used when the area of the object to be protected is large.

  On the other hand, in Japanese Patent Application Laid-Open No. 2015-145146, air that aims at protection within an optimal range without changing the capacity of an inflator or using a plurality of air bags by reducing the volume of a part of the airbag. A bag is disclosed.

  Japanese Patent Laying-Open No. 2015-145146

  However, with this structure, the object can be protected only on a substantially flat surface, and an air bag useful for a three-dimensional protection object has been desired. For some objects to be protected, some parts may not be useful, and an airbag module that can protect the whole is required.

  The present invention has been made in view of the above problems, and an outermost jacket made of a highly stretchable material whose three-dimensional shape is determined by the shape of an airbag that is inflated inside, and an inner casing disposed in the outermost jacket. The air bag module is composed of a small stretchable air tube that is inflated at a constant air capacity, and the air bag module has two strong and low stretch properties that are flat when not inflated. A jacket made of a material is joined at the outer peripheral edge, and a jacket having a space inside is formed, and the jacket is stored in the jacket and expands in the jacket when expanded, so that the jacket is shaped into a predetermined shape at the time of maximum expansion. At least two or more main airbags made of a highly stretchable air tube to be expanded, and two tough and stretchable parts that are arranged between the main airbags and become flat when not inflated A jacket made of a small material is joined at the outer peripheral edge, and a jacket is provided with a space inside. It was composed of at least one spacer airbag consisting of a highly elastic air tube that was expanded into a shape.

  In the first aspect of the present invention, the air capacity of the spacer airbag at the time of maximum inflation is configured to be smaller than the capacity of the main airbag at the time of maximum expansion, and the total sum of each airbag is configured to be equal to or less than a certain capacity. In addition, the spacer airbag and the air tube of the main airbag are connected to each other through a vent hole provided in each jacket, and the spacer airbag and the main airbag are connected only by the outer peripheral edge of each vent hole. By joining, the air bag module that determines the three-dimensional shape of the entire outermost jacket at a constant air capacity with the distance between the two main bags as the size when the spacer airbag is fully inflated.

  According to a second aspect of the present invention, the spacer airbag is configured in a substantially spherical shape or a polygonal spherical shape with concentric vent holes, and the third aspect of the invention relates to the outer shape of the spacer airbag and the main airbag. The outer peripheral part of the vent hole to which each air bag is connected has a shape that is most bulky when inflated.

  The invention according to claim 4 is an airbag module in which the airbag module is retained by a mesh member provided on the outside, and the invention of claim 5 is further folded and housed together with the mesh member and deployed together with the mesh member. Is done.

  According to a sixth aspect of the present invention, the airbag module is used as a protective cushioning material for a rotary wing aircraft such as a drone. In the seventh aspect of the invention, the airbag module is used as a protective cushioning material for a human body.

  The invention of claim 8 wraps the object to be protected at the time of inflating by making the main airbag into a curved shape, and claim 9 is such a configuration in which the object to be protected is a human body, When the airbag module is mounted on a motorcycle, the airbag module is disposed in the front part of the human body of the vehicle body, and when the airbag module is expanded, the airbag module is separated from the vehicle body. It was set as the structure wound around.

  The present invention, which is configured as described above, can be applied to a shape that is difficult to protect such as a rotorcraft and the like, and in the human body, an air bag module having a special shape that can protect not the whole body but the whole body is realized. In addition, it is possible to provide an air bag module that is easy to manufacture and robust and lightweight.

It is explanatory drawing of the airbag module before the expansion | deployment of 1st Example of this invention. It is explanatory drawing which fractured | ruptured some airbag modules after the expansion | deployment of 1st Example of this invention. It is explanatory drawing of the airbag module at the time of accommodation of 1st Example of this invention. It is explanatory drawing of the storage case of the airbag module of 1st Example of this invention. It is explanatory drawing of the rotorcraft using the airbag module of 1st Example of this invention. It is explanatory drawing which shows the use condition in the rotary blade aircraft of the airbag module of 1st Example of this invention. It is explanatory drawing of the airbag module before the expansion | swelling of 2nd Example of this invention. It is explanatory drawing which fractured | ruptured a part of the airbag module after the expansion | swelling of 2nd Example of this invention. It is front explanatory drawing which shows the use condition in the human body of the airbag module of 2nd Example of this invention. It is back explanatory drawing which shows the use condition in the human body of the airbag module of 2nd Example of this invention. It is upper surface explanatory drawing which shows the use condition in the human body of the airbag module of 2nd Example of this invention. It is a schematic diagram which shows the use condition in the human body of the airbag module of 2nd Example of this invention.

  The present invention can be used for three-dimensional objects that are difficult to protect, such as rotary wing aircraft and human bodies. Further, by using a plurality, it is possible to protect both the propeller side and the grounding side in a rotary wing aircraft, and in the human body so as to wrap around the whole body of the trunk rather than a part. For this reason, it can be suitably used for an object whose movement direction is not fixed.

Hereinafter, the details of the present invention will be described with reference to the drawings of the embodiments.

  As shown in FIG. 2, the airbag module 1 according to the present invention includes an outer jacket (a main airbag and a spacer airbag) made of a highly stretchable material whose three-dimensional shape is determined by the shape of the airbag that is inflated inside. The air bag module 1 is composed of an outer member that is configured) and an air tube C that is disposed in the outermost casing and has a small expansion / contraction property that is maximally inflated with a constant air capacity.

  The airbag module 1 includes an outer jacket provided with a space by joining two strong and stretchable base fabrics that are flat when not inflated at the outer peripheral end, and the outer jacket. It has at least two or more main airbags 2 made of a highly stretchable air tube C that is housed and inflates in the outer casing at the time of expansion to expand the outer casing to a predetermined shape at the time of maximum expansion.

  Between each of the main airbags 2.2, there is an outer jacket provided with a space by joining two strong and stretchable base fabrics that are flat when not inflated at the outer peripheral edge. And at least one spacer airbag 3 made of a highly stretchable air tube C that expands the outer cover into a predetermined shape at the time of maximum expansion by being accommodated in the outer cover and expanding in the outer cover at the time of expansion. Has been.

  The air capacity when the spacer airbag 3 is inflated is smaller than the air capacity when the main airbag 2 is inflated, and the total sum of the airbags 2.3 is less than a certain capacity. . In the illustrated example, the spacer airbag is substantially circular or polygonal.

  The spacer airbag 3 and the air tube C of the main airbag 2 are connected to each other through a vent hole 4a provided in each jacket, and the spacer airbag 3 and the main airbag 2 are connected to the outside of each vent hole 4. By joining the welded portion 4a only at the peripheral edge, the distance between the two main bags 2 is determined as the size of the spacer airbag 3 at the time of maximum expansion, and the three-dimensional shape of the entire outer jacket is determined with a constant air capacity. ing.

  Further features of the present invention are that, as shown in FIG. 2, the outer envelope of the spacer airbag 3 and the main airbag 2 is formed only on the outer peripheral portion of the vent hole 4 to which each airbag 2.3 is connected. The shape is most bulky when expanded.

  According to the above structure, the airbag module 1 of the present invention is compact as shown in FIG. 3 when folded together with the mesh member 5, and can be stored in the storage bag shown in FIG.

  As shown in FIG. 6, the airbag module 1 of the present invention is retained by a mesh member 5 provided on the outer side, and is used as a protective cushioning material for a rotary wing aircraft P such as a drone shown in FIG. It can expand | deploy by the action | operation of an inflator from the storage location of this, and can protect both the propeller side and a grounding side.

  In the airbag module 1 of the present invention, the main airbag 2 and the spacer airbag 3 are connected only by the welded portion 4a around the vent hole 4. Since the structure is fragile with respect to the force on the air bag, the entire airbag module 1 is held by the mesh member 5. Further, by adopting this configuration, the space portion formed between the main airbag 2 and the spacer airbag 3 has a cushioning surface along the mesh member 5, so that the functionality as an airbag is improved.

  The airbag module 1 illustrated in FIGS. 7 to 12 shows an example used as a protective cushioning material for the human body H. In the case of this embodiment, as shown in FIG. 7, the main airbag has a curved shape, and as shown in FIG. 9, the torso of the human body to be protected when inflated is wrapped from the front side and the back side. It is possible.

  In the case of this embodiment, the airbag module 1 is disposed in a front portion of the human body H of the motorcycle body, and the airbag module 1 is folded and stored together with the mesh member 5.

  When the human body is in a dangerous state, the airbag module 1 is expanded by a known inflator operating mechanism. At this time, the airbag module 1 is separated from the vehicle body and wrapped around the human body as it is. Therefore, even when the body collides with an obstacle or rolls over and the movement direction of the human body is not determined, the buffer function always works on the human body.

C Air tube F Inflator P Rotary wing aircraft H Human body 1 Air bag module 2 Main air bag 3 Spacer air bag 4 Vent hole 4a Welding part 5 Mesh member 6 Storage bag

Claims (9)

  The outermost jacket made of a highly stretchable material whose three-dimensional shape is determined by the shape of the airbag that is inflated inside, and the small stretchability that is disposed in the outermost jacket and that allows maximum expansion with a constant air capacity An air bag module composed of an air tube. The air bag module is formed by joining two tough and stretchable base fabrics that are flat when not inflated at the outer peripheral end. And at least two or more main tubes that are housed in the outer casing and expandable in the outer casing at the time of expansion to expand the outer casing to a predetermined shape at the time of maximum expansion. An air bag and two base fabrics made of a material that is flat and not flat when inflated and made of a material that has a low elasticity are bonded at the outer periphery. At least one of a jacket having a space provided therein and a large stretchable air tube that is accommodated in the jacket and expands in the jacket during expansion to expand the jacket into a predetermined shape during maximum expansion. It is composed of two or more spacer airbags, and the air capacity at the time of maximum inflation of the spacer airbag is configured to be smaller than the air capacity at the time of maximum inflation of the main airbag, and the total sum of each airbag is less than a certain capacity The spacer airbag and the air tube of the main airbag are connected to each other through a vent hole provided in each jacket, and the spacer airbag and the main airbag are connected to the outer peripheral edge of each vent hole. By joining them together, the distance between the two main bags is the size when the spacer airbag is fully inflated. Airbag module, characterized in that to determine the body shape.   The airbag module according to claim 1, wherein the spacer airbag has a substantially spherical shape or a polygonal spherical shape in which the vent hole is concentric. The outer cover of the spacer airbag and the main airbag has a shape in which an outer peripheral portion of a vent hole to which each airbag is connected is most bulky when inflated. An air bag module according to claim 1. The airbag module according to any one of claims 1 to 3, wherein the airbag module is further retained by a net-like member provided outside. The airbag module according to claim 4, wherein the airbag module is folded and stored together with the mesh member and deployed together with the mesh member. The airbag module according to claim 1, wherein the airbag module is used as a protective cushioning material for a rotary wing aircraft such as a drone.   The airbag module according to claim 1, wherein the airbag module is used as a protective cushioning material for a human body.   The airbag module according to any one of claims 1 to 7, wherein the main airbag has a curved shape so as to wrap an object to be protected when inflated.   When the object to be protected is a human body and the airbag module is mounted on a motorcycle, when the airbag module is disposed in the front portion of the human body of the vehicle body and the airbag module is expanded, 9. The airbag module according to claim 8, wherein the airbag module is separated from a vehicle body and wound around a human body.

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