JP2018161958A - Hollow weave air bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hollow weave air bag in which an inflation deployment part has more adequate inflated form when the inflation deployment part inflates and deploys, and which therefore has more improved safety upon vehicle collision and the like.SOLUTION: The hollow weave air bag comprises an inflation deployment part 10 and a closed part 15 provided adjacently to the peripheral border of the inflation deployment part 10, the inflation deployment part 10 comprises separation distance suppression means for suppressing a separation distance between woven cloth 10a on one surface side and woven cloth 10b on the other surface side, inflation suppression means includes a plurality of inflation suppression members 10c linearly spaced in the inflation deployment part 10, and the inflation suppression members 10c are latching members put between the woven cloth 10a on one surface side and the woven cloth 10b on the other surface side. The inflation suppression member 10c may be in a lineally spaced form with the vicinity of the closed part 15 as a starting point, and are lineally spaced in a portion separate from the closed part 15, and may be in a form larger in the separation distance between the woven cloth 10a on one surface side sand the woven cloth 10b on the other surface side as compared with the lineally spaced form with the vicinity of the closed part 15 as a starting point.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bag-woven airbag including an inflating and deploying portion and a closing portion. More specifically, the present invention relates to a bag-woven airbag that can be adjusted so that when the inflated and deployed portion is inflated and deployed, the inflated and deployed portion is inflated and deployed into an appropriate form.

  The airbag includes an inflating and deploying portion constituted by a woven fabric on one surface side and a woven fabric on the other surface side that are arranged to face each other, and a closing portion provided adjacent to the periphery of the inflating and deploying portion. Further, the gas supplied from the inflator flows into the inflating and expanding portion, and expands and expands. At that time, it is necessary that the required portion expands to an appropriate thickness and the occupant is sufficiently protected.

  As an air bag, an opening through which gas can flow is formed in a partition that divides the inflated and deployed bag body into a plurality of cells, and the deployment speed of the bag body, thickness during deployment, etc. can be easily adjusted A product that can be used is known (see, for example, Patent Document 1). Further, like the conventional curtain shield airbag 1 illustrated in FIG. 7, the one side of the inflated / deployed portion 80 is inflated to an appropriate thickness in a portion corresponding to the inflated / deployed portion 80. There is also known an airbag provided with a linear non-separation portion 81 in which the woven fabric and the woven fabric on the other side are not separated.

JP 2011-20528 A

  A conventional airbag, for example, the curtain shield airbag 1 illustrated in FIG. 7 can sufficiently protect an occupant from an impact at the time of a vehicle collision or the like, but has more excellent performance such as shock absorption. Development of airbags is underway. For example, an attempt has been made to further improve safety in the event of a vehicle collision or the like by adjusting and optimizing the thickness of the entire inflated and deployed part during inflated and deployed.

  The present invention has been made in view of the above-described conventional situation, and when the inflated and deployed part is inflated and deployed, the inflated and deployed part can be adjusted to be inflated and deployed in an appropriate form, An object of the present invention is to provide a bag-woven airbag that can further improve safety in the event of a vehicle collision.

The present invention is as follows.
1. A bag-woven airbag comprising an inflated and deployed part and a closed part provided adjacent to the periphery of the inflated and deployed part,
The inflated and deployed part comprises a separation distance restraining means for restraining the separation distance between the woven fabric on one side and the woven fabric on the other side constituting the inflated and deployed part,
The separation distance suppression means has a plurality of expansion suppression members arranged in a line at intervals to the expansion and deployment part,
The bag-woven airbag, wherein the expansion suppressing member is a locking member that is stretched between the woven fabric on the one surface side and the woven fabric on the other surface side.
2. The said 1. expansion | swelling suppression member which is a 1st expansion | swelling suppression member lined up linearly starting from the vicinity of the said closed part. A bag-woven airbag as described in 1.
3. The said 1st expansion | swelling suppression member is a 2nd expansion | swelling suppression member which is located in a line in the center part spaced apart from the said closed part of the said expansion | deployment expansion | deployment part. A bag-woven airbag as described in 1.
4). The locking member includes a sheet piece disposed on each surface of the woven fabric on the one surface side and the woven fabric on the other surface side, the woven fabric on the one surface side, the woven fabric on the other surface side, and the sheet piece. And a string-like body that is inserted through a hole provided through the two ends and knotted at both ends. To 3. The bag woven airbag according to any one of the above.
5. The locking member includes a locking end disposed on each surface of the woven fabric on the one surface side and the woven fabric on the other surface side, the woven fabric on the one surface side, and the woven fabric on the other surface side. And 1. a connecting portion connecting the end portions for locking in a form inserted through a hole provided therethrough. To 3. The bag woven airbag according to any one of the above.

The bag-woven airbag according to the present invention has a plurality of inflatables arranged in a line at intervals in the inflating and deploying portion in order to suppress a separation distance between the woven fabric on one side and the woven fabric on the other side constituting the inflating and deploying portion. A separation distance suppression means having a suppression member is provided. The expansion suppressing member is a locking member that is stretched between the woven fabric on the one surface side and the woven fabric on the other surface side.
Due to such a configuration, when the inflated and deployed part is inflated and deployed, the inflated form is adjusted so that the entire inflated and deployed part has a predetermined shape. The passenger can be sufficiently protected.
Further, when the expansion suppressing member is a first expansion suppressing member arranged in a line starting from the vicinity of the closed portion, a portion where expansion is excessively suppressed is not generated, and a more preferable form of expansion is obtained. It can be a deployment part.
Further, when the expansion suppressing member is a second expansion suppressing member that is linearly arranged in the central portion separated from the closed portion of the inflating and expanding portion, the entire inflating and expanding portion can be expanded and expanded more evenly. In a preferred form, the inflated and deployed portion can be obtained.
Note that whether to use the first expansion suppressing member or the second expansion suppressing member can be appropriately selected depending on the type of bag-woven airbag, the type of vehicle, and the like.
Further, the locking member penetrates the sheet piece disposed on each surface of the woven fabric on the one surface side and the woven fabric on the other surface side, the woven fabric on the one surface side, the woven fabric on the other surface side, and the sheet piece. In the case where it is constituted by a string-like body that is inserted into the provided hole and knotted at both ends, the first and second expansion suppression members can be easily provided at a predetermined position by a simple method. .
Further, the locking member passes through the locking end portions disposed on the surfaces of the woven fabric on the one surface side and the woven fabric on the other surface side, and the woven fabric on the one surface side and the woven fabric on the other surface side. In a case where the first and second expansion suppression members are configured in a form inserted through the provided holes and connected to the end portions for locking, the first and second expansion suppressing members are easily provided at a predetermined position by a simple method. In addition, it is possible to provide a locking member having a higher strength than when the sheet piece and the string-like body are used.
Whether it is a locking member composed of a sheet piece and a string-like body or a locking member composed of a locking end and a connecting portion depends on the type of bag-woven airbag, the type of vehicle It can be appropriately selected depending on the above.

FIG. 3 is a schematic plan view of a curtain shield airbag in which expansion suppression members are arranged in a line starting from the vicinity of a closed portion. (A) is a schematic diagram of the AA cross section when the airbag of FIG. 1 is not inflated, (b) is a schematic diagram of the AA cross section when the airbag of FIG. 1 is inflated. (A) is a partially enlarged view of FIG. 2 (a), and (b) is a partially enlarged view of FIG. 2 (b). It is a typical top view of the curtain shield airbag in which the expansion suppression member is lined up in the center of the inflated and deployed part. It is a schematic diagram of the BB cross section when the airbag of FIG. 4 expand | swells. (A), (b), and (c) are explanatory views for explaining a separation distance restraining means in which the expansion restraining member has a form different from that in FIGS. (A) is a typical top view of the conventional curtain shield airbag, (b) is a schematic diagram of CC cross section when the airbag of (a) expand | swells.

Hereinafter, the present invention will be described in detail with reference to the drawings.
The items shown here are exemplary and illustrative of the embodiments of the present invention, and are the most effective and easy-to-understand explanations of the principles and conceptual features of the present invention. It is stated for the purpose of providing what seems to be. In this respect, it is not intended to illustrate the structural details of the present invention beyond what is necessary for a fundamental understanding of the present invention. It will be clear to those skilled in the art how it is actually implemented.

Hereinafter, the present invention will be described in detail with reference to the drawings.
The bag-woven airbag 1 of the present invention (hereinafter also referred to as “airbag”) includes an inflating and deploying unit 10 that inflates and deploys gas supplied from an inflator 13, and an inflating and deploying unit 10. And a closing portion 15 provided adjacent to the periphery (see, for example, the curtain shield airbag 1 in FIGS. 1 and 4).

(1) Inflating and deploying portion The inflating and deploying portion 10 (see FIGS. 1 and 4, etc.) is made of a bag weave structure, and when a vehicle collides, gas supplied from the inflator flows into the inside through the gas inlet 13 , Inflates and expands, and the impact applied to the occupant's head, face, chest, etc. is alleviated. The inflated / deployed portion 10 is formed by double weaving, and the woven fabric structure of the woven fabric 10a on one side and the woven fabric 10b on the other side is not particularly limited. It can be set as various textile structures, such as a structure | tissue.

  Further, the woven structure of the inflated and deployed portion 10 is not particularly limited, and 1/1 bag structure, 2/1 bag structure, 1/2 bag structure, 2/2 bag structure, 2/3 bag structure, 3/3 bag structure. 3/2 bag tissue or the like. Among these woven tissues, in the 1/1 bag structure, 2/1 bag structure, 1/2 bag structure, and particularly in the 1/1 bag structure, the inflated / deployed portion 10 may become rigid. It is preferable to use other woven structures such as a / 2 bag structure.

(2) Closed portion The closed portion 15 (see FIGS. 1 and 4 etc.) is provided adjacent to the periphery of the inflating and deploying portion 10 so that the inflating and deploying portion 10 inflates and expands into a predetermined three-dimensional shape. This is a belt-like portion having a low air permeability for suppressing the leakage of the gas flowing into the inflating / deploying portion 10. The fabric structure of the closed portion 15 is not particularly limited as long as leakage of the gas that has flowed in can be sufficiently suppressed. The woven structure of the closed portion 15 can be various woven structures such as a bag woven structure, a plain woven structure, an oblique structure, an oblique structure, and a satin structure.

  Further, the closed portion 15 may be composed of only one type of woven fabric structure such as a single woven plain weave portion as long as gas leakage from the peripheral portion of the airbag 1 can be suppressed, in order to more sufficiently suppress air leakage. Even if they are different woven fabrics or the same woven fabric, closed portions having different woven fabrics may be arranged in the width direction. In this case, the order in which each of the closed portions having different woven textures and / or woven textures is connected is not particularly limited. It may be provided.

  Furthermore, in the width direction of the closed portion 15, two or more inverted bag weave portions may be provided adjacent to each other, or two or more inverted bag weave portions may be provided via a plain weave portion or the like. When two or more inverted bag weaving portions are provided adjacent to each other, each adjacent inverted bag weaving portion is formed by one warp and weft constituting the other upper fabric, and one upper fabric is the other. It is formed by the warp and weft constituting the lower fabric.

(3) Embodiment of Separation Distance Suppressing Means (a) First Embodiment As shown in FIG. 2 and the like, the inflated / deployed portion 10 includes a woven fabric 10a on one side and a woven fabric 10a on the other side. And a woven fabric 10b. In the first embodiment of the separation distance suppression means, the first expansion suppression member 10c is arranged in a line in the expansion / deployment portion 10 starting from the vicinity of the closed portion 15 (see line L in FIG. 1). ). The first expansion suppression member 10c is formed of a locking member that is stretched between the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side (see FIGS. 2 (a) and 3 (a)). When the inflating / deploying portion 10 is inflated and deployed, the separation distance between the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side facing each other is suppressed to a predetermined constant distance [FIG. 2 (b), see FIG. 3 (b)]. Further, the ratio (D ₂ ) between the maximum value (D ₁ ) of the separation distance between the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side in the inflating and deploying portion 10 and a predetermined separation distance (D ₂ ). / D ₁ ) is not particularly limited, but can be D ₂ / D ₁ = 0.1 to 0.5 / 1, particularly 0.2 to 0.3 / 1.

  In the first embodiment, for example, in the conventional curtain shield airbag 1 (see FIG. 7), the woven fabric on the one surface side and the woven fabric on the other surface side so that the entire inflated and deployed portion 80 is inflated to an appropriate thickness. The linear non-separation part 81 provided so as not to be separated from the cloth can be formed into a bag-woven airbag provided with a separation distance suppressing means so as to be separated by a predetermined distance. Thereby, when a passenger | crew contacts the expansion | deployment expansion | deployment part 10 at the time of a vehicle collision etc., a passenger | crew can be more fully protected from an impact.

(B) Second Embodiment In the second embodiment of the separation distance suppressing means, as illustrated in FIG. 4, the second expansion suppressing member 10 c (only the position where the first expansion suppressing member is disposed is different). Yes, it is a similar separation distance suppression means, and since it can be constituted by the same locking member, it is given the same reference numeral), but is lined up in a central part spaced apart from the closing part 15 of the inflating and deploying part 10 It is arranged with.

In the second embodiment, a plurality of second expansion suppression members 10c are arranged in a line at the central portion spaced from the closed portion 15 of the inflating and deploying portion 10. Therefore, the thickness of the inflated / deployed portion 10 at the time of inflating / deploying is equal in a wider area of the inflating / deploying portion 10, and the position where the occupant contacts the inflated / deployed portion 10 at the time of a vehicle collision or the like Even if it deviates somewhat from the above, the passenger can be sufficiently protected from the impact (see FIG. 5). Further, the ratio (D ₄ ) between the maximum value (D ₃ ) of the separation distance between the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side in the inflating and deploying portion 10 and a predetermined separation distance (D ₄ ). / D ₃ ) is not particularly limited, but can be D ₄ / D ₃ = 0.3 to 0.9 / 1, particularly 0.5 to 0.8 / 1. As described above, in the second embodiment, the distance between the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side is generally larger than that in the first embodiment.

(4) Expansion suppressing member (a) First embodiment using string-like body The first and second expansion suppressing members 10c are hung between a woven fabric 10a on one side and a woven fabric 10b on the other side. A member to be passed, that is, a locking member that can connect the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side while maintaining a predetermined separation distance when the inflated / deployed portion 10 is inflated and deployed. The structure and material are not particularly limited. For example, the sheet pieces 12a and 12b disposed on the surfaces of the woven cloth 10a on the one side and the woven cloth 10b on the other side, the woven cloth 10a on the one side, the woven cloth 10b on the other side, and the sheet piece 12a, It can be constituted by a string-like body 11a in which both ends of a string inserted through a hole provided through 12b are knotted (see FIG. 3).

  The sheet pieces 12a and 12b are made of sheets made of various synthetic resins, and pads having a circular or rectangular planar shape can be used. Moreover, in each 1st and 2nd expansion | swelling suppression member 10c, the surface contact | abuts to the outer surface of the woven fabric 10a of the one surface side which comprises the expansion | deployment expansion | deployment part 10, and the surface contact | abut to the outer surface of the woven fabric 10b of the other surface side. The sheet pieces 12a and 12b are respectively disposed at the positions, and the pair of sheet pieces 12a and 12b are opposed to each other with the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side interposed therebetween. Further, a seal layer 14 made of an adhesive or the like is formed between the outer surface of the woven fabric 10a on one side and the sheet piece 12a and between the outer surface of the woven fabric 10b on the other side and the sheet piece 12b [FIG. ) Reference] can be provided to prevent gas leakage from the inflated and deployed portion 10.

  When the string-like body 11a is provided with the woven fabric 10a on one side, the woven fabric 10b and sheet pieces 12a and 12b on the other side, and the seal layer 14, the string-like body 11a is inserted into the hole provided through the seal layer 14. The inserted string is formed by knotting both ends exposed on the outer surface side of the woven fabric 10a on the one surface side or the outer surface side of the woven fabric 10b on the other surface side. The method of knotting both ends of the string is not particularly limited, and examples thereof include a technique in which both ends of the string are fused by ultrasonic bonding, a technique in which both ends of the string are tied, etc. Since it can be knotted and has a good appearance, a technique of fusing by ultrasonic bonding or the like is preferable.

  When the inflated / deployed portion 10 is not inflated or deployed, the string-like body 11a is in close contact with the inner surface of the woven fabric 10a on the one surface side and the inner surface of the woven fabric 10b on the other surface side, as shown in FIG. Thus, it becomes a form (refer to the slack part 11b) having a slack formed by the surplus string. When the inflated / deployed portion 10 is inflated and deployed, the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side are separated by a predetermined distance d as shown in FIG. The slack of 11a disappears.

(B) Second embodiment using a rod-shaped body made of resin, metal, etc. The first and second expansion suppression members 10c are arranged on the main body portion 16a (main body portion) and one end side of the main body portion 16a. It can also be formed using a rod-shaped body made of resin, metal or the like provided with the first locking portion 16b (locking end) [see FIG. 6 (a)]. This rod-shaped body is formed in a through hole provided at a position where the first and second expansion suppressing members 10c of the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side are disposed, and the other end side of the main body portion 16a. Is inserted as a tip. Thereafter, the other end side of the main body portion 16a is deformed to form a second locking portion 16c (locking end portion) having the same shape as the first locking portion 16b, so that the whole becomes an H-shape. Composed. Further, the dimension between the first locking portion 16b and the second locking portion 16c is such that when the inflating / deploying portion 10 expands and expands, the woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side Is set to be a predetermined separation distance.

  On the other hand, when the inflated / deployed portion 10 is inflated and deployed, the woven fabric 10a on one side is in close contact with the first locking portion 16b, and the woven fabric 10b on the other side is in close contact with the second engaging portion 16c. [Refer to FIG. 6B]. And the dimension between the inner surface of the woven fabric 10a on the one surface side and the inner surface of the woven fabric 10b on the other surface side is suppressed to a predetermined separation distance d. As a method of deforming the other end side of the main body portion 16a and forming the second locking portion 16c, when the rod-shaped body is a resin, the other end side of the main body portion 16a is heated and deformed. When it is made of metal, there is a method in which the other end side of the main body portion 16a is pressed and plastically deformed. In addition, when making it plastically deform, you may heat the other end side of the main-body part 16a to required temperature as needed.

(C) Third Embodiment Using Tag Pin The first and second expansion suppressing members 10c are a rod-like body portion 17a (connecting portion) and a first latch disposed on one end side of the body portion 17a. It can also be formed by a tag pin having a portion 17b (end portion for locking) [see FIG. 6 (c)]. On the other end side of the main body portion 17a, a convex second locking portion 17c (locking end portion) having an arcuate cross section toward the tip end side is provided, which is inflated and deployed using a fixture. The woven fabric 10a on the one surface side and the woven fabric 10b on the other surface side that are not attached are mounted in a state where the main body portion 17a penetrates. At this time, a gap of a predetermined size is provided between the first locking portion 17b and the second locking portion 17c, and when the inflated and expanded portion 10 expands and expands, the woven fabric 10a on the one surface side is It becomes the form which closely_contact | adhered to the 1st latching | locking part 17b side, and the woven fabric 10b of the other surface closely_contact | adhered to the 2nd latching | locking part 17c side. And the dimension between the inner surface of the woven fabric 10a on the one surface side and the inner surface of the woven fabric 10b on the other surface side is suppressed to a predetermined spacing distance [not shown, but in the second embodiment] This is the same separation distance suppression form as in FIG. 6B].

  The first and second expansion suppressing members 10c are formed using a rod-shaped body made of resin, metal, or the like that includes a main body portion 16a and a first locking portion 16b disposed on one end side of the main body portion 16a. The sheet pieces 12a and 12b may be arranged as necessary when using the string-like body 11a, in any case, and when formed by tag pins having a predetermined shape, The seal layer 14 may be used [see FIGS. 6A, 6B, and 6C].

(5) Material of yarn, fineness, etc. For manufacturing the airbag fabric constituting the bag-woven airbag 1, filaments made of synthetic resin are used. As this filament, there are a multifilament and a monofilament. Usually, a multifilament is used. The material of the filament is not particularly limited, and filaments made of various synthetic resins can be used. Examples of the synthetic resin include polyester resins such as polyethylene terephthalate, polybutylene terephthalate, and polytrimethylene terephthalate, polyamide resins such as nylon 6 and nylon 66, polyacrylic resins, and polyolefin resins such as polypropylene. As the synthetic resin, polyester resins and polyamide resins are particularly preferable, and polyester resins are more preferable.

  The fineness of the synthetic resin filament such as a multifilament is not particularly limited, and it is preferable to use a multifilament or the like having an appropriate fineness depending on the type, planar shape, dimensions, and the like of the airbag 1. The fineness is preferably 235 to 700 dtex, particularly 350 to 560 dtex. If the fineness of the multifilament or the like is 235 to 700 dtex, the gas leakage can be sufficiently suppressed, the closed part that is located in the gas ejection direction, the part adjacent to this closed part, and the other parts are closed. Preferably, the airbag 15 can be formed as the airbag 1 which can be formed and folded easily for storage.

  In the case of a multifilament, the number of filaments constituting the multifilament is not particularly limited and can be set according to the fineness and the like, but is preferably 36 to 200, particularly 72 to 144. Further, the weaving density is not particularly limited, and can be set depending on the fineness of the filament, and when the multifilament is used, the fineness and the number of filaments constituting the multifilament. The weaving density can be 30 to 80 / inch, particularly 40 to 70 / inch in both the warp direction and the weft direction.

(6) Formation of coating layer In order to suppress the gas leak as the whole airbag 1, the coating layer (illustration omitted) is normally provided in the outer surface of each of the closed part 15 and the expansion | deployment deployment part 10. FIG. The method for providing the coating layer is not particularly limited. For example, a solution containing a resin or the like on the outer surface of the base fabric used for the closed portion 15 and the inflated and deployed portion 10 when the airbag 1 is formed. Or the method of heating in order to spray a dispersion liquid and to remove a medium, etc. are mentioned.

  Various resins and rubbers can be used as the resin. Examples of the resin include silicone resins, polyurethane resins, polyacrylic resins, polyamide resins, polyester resins, polyolefin resins, fluororesins, and other silicone resins, chloroprene rubbers, And various rubbers such as chlorosulfonated polyethylene rubber, and silicone resin is frequently used. These resins and the like are preferably selected according to the material of the woven yarn, and resins and the like that adhere firmly to the warp and weft are preferred. From the viewpoint of adhesion, for example, when the yarn is a polyamide yarn or a polyester yarn, the resin or the like is preferably a polyurethane resin, a polyacrylic resin, or the like.

(7) Types of airbags The types of bag-woven airbags 1 of the present invention are not particularly limited, and curtain shield airbags, driver airbags, passenger airbags, side airbags, knee airbags, and ITS head airbags. In particular, it is suitable as a curtain shield airbag that has a large area and is required to maintain an internal pressure for a predetermined time.

  It should be noted that the above examples are for illustrative purposes only and are not to be construed as limiting the invention. Although the invention has been described with reference to exemplary embodiments, it is to be understood that the language used in the description and illustration of the invention is illustrative and exemplary rather than limiting. As detailed herein, changes may be made in its form within the scope of the appended claims without departing from the scope or spirit of the invention. Although specific structures, materials and examples have been referred to in the detailed description of the invention herein, it is not intended to limit the invention to the disclosure herein, but rather, the invention is claimed. It covers all functionally equivalent structures, methods and uses within the scope.

  For example, the sheet pieces 12a and 12b may be made of a material and form other than the resin sheet, and the sheet members 12a and 12b may be omitted. Further, when the first and second expansion suppressing members 10c are configured to use the string-like body 11a, when the inflated / deployed portion 10 is not inflated and deployed, the slack portion of the string-like body 11a is inflated / deployed portion 10. May be disposed and housed (in between the opposing woven fabric 10a and the other woven fabric 10b).

  Furthermore, the members constituting the first and second expansion suppressing members 10c are preferably made of a material that is hard to be damaged even when contacting the occupant. Therefore, as long as it has sufficient strength, rubber is preferable to resin, and when metal is used, soft metal such as aluminum and copper is preferable to steel, and hard rubber may be used instead of metal. Further, the arrangement of the seal layer 14 can be omitted.

  The present invention can be used in the technical field of bag-woven airbags. In particular, when the inflated and deployed part is inflated and deployed, the inflated and deployed part can be suitably used in the technical field of a bag-woven airbag that can be adjusted to a more appropriate form.

  L; suppression line, 1; bag woven airbag, 10; expansion and deployment portion, 10a; woven fabric on one side, 10b; woven fabric on the other side, 15; closed portion, 13; gas inlet, 10c; 11a; string-like body, 11b; loose part, 12a, 12b; sheet piece, 14; seal layer, 16a, 17a; body part, 16b, 17b; first locking part, 16c, 17c; .

Claims (5)

A bag-woven airbag comprising an inflated and deployed part and a closed part provided adjacent to the periphery of the inflated and deployed part,
The inflated and deployed part comprises a separation distance restraining means for restraining the separation distance between the woven fabric on one side and the woven fabric on the other side constituting the inflated and deployed part,
The separation distance suppression means has a plurality of expansion suppression members arranged in a line at intervals to the expansion and deployment part,
The bag-woven airbag, wherein the expansion suppressing member is a locking member that is stretched between the woven fabric on the one surface side and the woven fabric on the other surface side.   2. The bag-woven airbag according to claim 1, wherein the expansion suppression member is a first expansion suppression member arranged in a line starting from the vicinity of the closed portion.   2. The bag-woven airbag according to claim 1, wherein the expansion suppressing member is a second expansion suppressing member that is linearly arranged in a central portion that is spaced apart from the closed portion of the inflating and deploying portion.   The locking member includes a sheet piece disposed on each surface of the woven fabric on the one surface side and the woven fabric on the other surface side, the woven fabric on the one surface side, the woven fabric on the other surface side, and the sheet piece. The bag-woven airbag according to any one of claims 1 to 3, wherein the bag-woven airbag is configured by a string-like body that is inserted through a hole that penetrates the cable and is knotted at both ends.   The locking member includes a locking end disposed on each surface of the woven fabric on the one surface side and the woven fabric on the other surface side, the woven fabric on the one surface side, and the woven fabric on the other surface side. The bag-woven airbag according to any one of claims 1 to 3, wherein the bag-woven airbag is configured by a connection portion that connects the end portions for locking in a form that is inserted through a hole that is provided therethrough.

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