JP4879661B2 - Curtain airbag and method of manufacturing the same - Google Patents

Description

  The present invention relates to a curtain airbag that is inflated and deployed by a gas supplied from an inflator and a method for manufacturing the curtain airbag.

  When a vehicle crashes, the impact is detected by injecting the gas generated from the inflator (gas generator) into the airbag, inflating and deploying it, and interposing between the passenger and the vehicle body. Air bag devices that relax and protect this have become widespread. In recent years, in order to protect the occupant's face and upper body, it is equipped not only on the steering wheel and instrument panel but also on the door side to protect the occupant even when a side collision occurs or the vehicle falls. More safety is ensured as much as possible.

  As such a side-side airbag, there is known a curtain airbag that is mounted on a roof side rail portion of a vehicle and that deploys in a curtain-like manner under a collision to protect an occupant (for example, Patent Document 1). . A curtain airbag that extends the range of the deployed curtain airbag to the front pillar portion is also known (see, for example, Patent Document 2).

  FIG. 11 is a schematic perspective view showing a deployed state of a conventional curtain airbag. In the figure, reference numeral 100 denotes a conventional curtain airbag including a main inflating portion 110, an extending inflating portion 111, a non-inflating portion 108, a conduit 109, and a rear seat inflating chamber 107. X extending in the developing direction at a substantially central portion of the extended inflating portion 111 is a folding line, and the extending inflating portion 111 is folded around the folding line X. Y is an edge line of the folded portion. Such a curtain airbag 100 is folded back at the folding line X and is folded and stored in the roof side rail portion. As a result, the range of the curtain airbag 100 deployed is expanded to the front pillar portion.

FIG. 12 is a schematic plan view showing a deployed state of the conventional curtain airbag 100 at the time of a side collision. In the figure, reference numeral 5 denotes a vehicle, and shows a state in which the vehicle 5 collides with the pole 120 in a side face. At the time of a side collision, the curtain airbag 100 operates, gas is supplied from an inflator (not shown), and the chambers 103, 103. Thereby, the passenger | crew 6 which moves to a horizontal direction by a side collision is protected by the chamber 103. FIG.
JP 2000-355261 A JP 2004-256000 A

  However, in a car accident, in addition to the vehicle colliding with the obstacle from the side, it may be assumed that the vehicle collides with the obstacle in an oblique direction. In such a collision, the occupant does not move in the lateral direction but moves in the collision direction, that is, in an oblique direction. In such a case, the passenger is protected by the chamber even in the conventional curtain airbag, but further improvement in safety has been demanded. Further, when the curtain airbag described in Patent Document 2 is operated, the chambers are merely deployed in a horizontal row including the folded portion, and the above-described problems cannot be solved.

  The present invention has been made in view of such circumstances, and an object thereof is to fix an auxiliary chamber on at least one of a plurality of chambers in a direction that intersects the direction in which the chambers are continuously provided. Another object of the present invention is to provide a curtain airbag capable of effectively protecting an occupant even in a collision in an oblique direction, and a method of manufacturing the curtain airbag.

  Further, in the present invention, among the plurality of continuous chambers, the end chamber is folded back and fixed to the other chambers so as to be low without changing the design of the existing curtain airbag. It is an object of the present invention to provide a curtain airbag capable of effectively protecting an occupant at a cost and a method for manufacturing the curtain airbag.

The curtain airbag according to the present invention is a curtain airbag that is inflated and deployed by a gas supplied from an inflator, and a plurality of consecutive chambers to which gas is supplied from the inflator , and each chamber is provided around the chamber airbag. When the partition portion for dividing each of the chambers and the chamber at the end portion are overlapped with the chamber adjacent to the chamber at the end portion in a direction crossing the continuous direction of the chamber, the one side of the adjacent chamber and the end portion It is characterized by comprising: a partitioning part on the other side of the adjacent chamber opposite to the partitioning part separating the other side of the chamber; and a fixing part for fixing the partitioning part on one side of the chamber at the end part .

The curtain airbag according to the present invention is a curtain airbag that is inflated and deployed by a gas supplied from an inflator, and a plurality of consecutive chambers to which gas is supplied from the inflator, and each chamber is provided around the chamber airbag. A partition section for partitioning each, and a partition section on the lower side of the chamber at the end section when the chamber at the end section is overlapped with a chamber adjacent to the chamber at the end section in a direction crossing the continuous direction of the chamber; And a fixing part to be fixed to a lower partitioning part of the adjacent chamber. The curtain airbag according to the present invention includes a locking portion provided in an upper partition portion of the adjacent chamber. The curtain airbag according to the present invention is characterized in that the length of the end portion in the deployment direction of the chamber is shorter than the length of the adjacent chamber in the deployment direction.

A curtain airbag manufacturing method according to the present invention is a curtain airbag manufacturing method that is inflated and deployed by supplying gas to a plurality of continuous chambers. The chambers are folded back, and each chamber is provided with a partition that divides each chamber, and the chamber at the end is overlapped with the chamber adjacent to the chamber at the end in a direction crossing the direction in which the chambers are continuously provided. The partition portion on the other side of the adjacent chamber opposite to the partition portion that separates the one side of the adjacent chamber and the other chamber side of the end portion, and the partition portion on the one side of the end chamber. And is fixed. A curtain airbag manufacturing method according to the present invention is a curtain airbag manufacturing method that is inflated and deployed by supplying gas to a plurality of continuous chambers. The chambers are folded back, and each chamber is provided with a partition that divides each chamber, and the chamber at the end is overlapped with the chamber adjacent to the chamber at the end in a direction crossing the direction in which the chambers are continuously provided. The partition portion below the chamber at the end portion and the partition portion below the adjacent chamber are fixed. The curtain airbag manufacturing method according to the present invention is characterized in that a locking portion is provided in an upper partition portion of the adjacent chamber. The curtain airbag manufacturing method according to the present invention is characterized in that the length of the end portion in the deployment direction of the chamber is shorter than the length of the adjacent chamber in the deployment direction.

  In the present invention, the plurality of chambers are connected in series, and gas is supplied from the inflator to each chamber and the auxiliary chamber. In addition, the auxiliary chamber is fixed to at least one of the plurality of chambers so as to overlap with the direction intersecting with the continuous direction, so that when the gas is supplied to the chamber, the chamber and the auxiliary chamber overlap each other. As a result of deploying in directions other than the lateral direction, it is possible to effectively protect the occupant by the cooperative action of the chamber and the auxiliary chamber at the time of an oblique collision.

  In the present invention, since the auxiliary chamber is fixed so as to overlap with the end chamber among the plurality of continuous chambers, the occupant is enclosed by the chamber and the auxiliary chamber at the time of an oblique collision. It becomes possible to protect.

  In the present invention, among the plurality of continuous chambers, the chamber at the end is folded back and fixed in a superimposed manner on other chambers. For example, the end chamber and the adjacent chamber are sewn and fixed at a partition that is provided around each chamber and divides each chamber. As described above, since the end chamber is used as an auxiliary chamber, it is possible to manufacture an existing curtain airbag by simply folding it back and stitching, and providing a simple and low-cost curtain airbag. It becomes possible.

  In the present invention, the auxiliary chamber is fixed so as to overlap with at least one of the plurality of chambers in a direction intersecting with the continuous direction of the chambers, so that when gas is supplied to the chambers, As a result of the chamber and the auxiliary chamber overlapping and expanding in directions other than the lateral direction, it is possible to effectively protect the occupant by the cooperative action of the chamber and the auxiliary chamber at the time of an oblique collision.

  In the present invention, since the auxiliary chamber is fixed so as to overlap with the end chamber among the plurality of continuous chambers, the occupant is enclosed by the chamber and the auxiliary chamber at the time of an oblique collision. It becomes possible to protect. In addition, when two auxiliary chambers are provided so as to overlap both ends, it is possible to appropriately protect both front and rear passengers.

  In the present invention, since the auxiliary chamber is replaced with the end chamber, it can be manufactured simply by folding and sewing an existing curtain airbag, and a simple and low-cost curtain airbag can be obtained. The present invention has an excellent effect that it can be provided.

Embodiment 1
Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing an attached state of the curtain airbag. In FIG. 1, 1 is a curtain airbag (hereinafter referred to as an airbag) provided on the roof side rail portion 51 of the vehicle 5, and is covered by a head lining (not shown). 2 is an inflator housed in a rear pillar garnish (not shown), 3 is a front pillar garnish, and one end of a tension belt 4 is fixed to the vehicle body inside. Reference numeral 52 denotes a window glass. The inflator 2 supplies gas to each chamber and auxiliary chamber in the airbag 1.

  FIG. 2 is a schematic cross-sectional view of the airbag 1 taken along line AA in FIG. As shown in FIG. 2A, one end of the airbag 1 is folded back toward the other end and attached to the head lining, and as shown in FIG. 2B, one end is rolled several times toward the other end (roll hold type). 2), or folded portions at one end having substantially the same length as shown in FIG. 2C may be alternately stacked in a bellows shape and attached (Z-hold type).

  FIG. 3 is a schematic perspective view showing the configuration of the airbag 1. The airbag 1 in FIG. 3 includes a locking portion 13, a conduit 14, an inflow port 15, chambers 11a, 11b, 11c..., An auxiliary chamber 12a (end chamber 11a), and a partitioning portion 16. The airbag 1 is a bag-like object in which sheet materials having a symmetrical shape are overlapped and integrated. In this embodiment, an example in which the airbag 1 is composed of two fabrics such as a fabric sewn in a bag shape will be described. However, the airbag 1 may be manufactured from a single fabric woven in a bag shape from the beginning. good.

  On the upper side in the longitudinal direction (X-axis direction) of the airbag 1 having a rectangular shape, a plurality of engaging portions 13, 13. The locking portion 13 has a rectangular opening having an area smaller than the locking portion 13 at a substantially central portion, and the opening of the locking portion 13 is formed on a hook (not shown) of the roof side rail portion 51 of the vehicle 5. The airbag 1 is attached to the roof side rail portion 51 by hooking. A plurality of chambers 11 a, 11 b, 11 c, 11 d, 11 e, and 11 f (hereinafter represented by 11 in some cases) that are inflated and deployed by supplying gas from the inflator 2 are connected to the airbag 1 in the longitudinal direction. . In the present embodiment, a mode in which the end chamber 11a is used as the auxiliary chamber 12a will be described.

  On the upper side of the auxiliary chamber 12a and the chambers 11b, 11c, 11d, 11e, and 11f, a conduit 14 that extends in the connecting direction (X-axis direction) of the auxiliary chamber 12a and each chamber 11 is provided. .. Are formed at the connecting portion between the auxiliary chamber 12a and each chamber 11 and the conduit 14, and the gas supplied from the inflator 2 through the conduit 14 through each inlet 15 It feeds into the auxiliary chamber 12a and each chamber 11.

  Portions other than the locking portion 13, the conduit 14, the inflow port 15, the auxiliary chamber 12 a, and the chamber 11 described above are covered with the partition portion 16 into which the gas from the inflator 2 does not flow. The partition 16 that separates each chamber 11 and the auxiliary chamber 12a is provided so as to cover the outer periphery of the airbag 1, and is also provided between the auxiliary chamber 12a and the chamber 11b and between the chambers 11. Has been. For example, the chamber 11b is surrounded by a substantially T-shaped partitioning portion 16 and 16 suspended in the short side direction of the airbag 1 and a partitioning portion 16 extending in the longitudinal direction of the airbag 1 at the lower side of the chamber 11b. The inlet 15 is opened at the upper side. In addition to applying an adhesive so that gas does not flow in, the partition 16 is sewn or the like.

  The partition portion 16 between the chamber 11d and the chamber 11e is arranged in a substantially T shape having a wider width in the longitudinal direction than the partition portion 16 between the chamber 11c and the chamber 11d. Since the auxiliary chamber 12a is present at the end of the chamber 11, the partitioning portion 16 that is one of the outer peripheral short sides of the airbag 1 and hangs in the short side direction of the airbag 1 counterclockwise, the auxiliary chamber The partition portion 16 extending in the longitudinal direction of the airbag 1 at the lower side of the airbag 12a, the substantially T-shaped partition portion 16 suspended in the short side direction of the airbag 1, and the airbag 1 at the upper side of the auxiliary chamber 12a The four partition parts 16 of the partition part 16 extended in the longitudinal direction are provided around. An inlet 15 that is wider than the inlet 15 provided in the upper part of the other chamber 11 is formed in the upper part of the auxiliary chamber 12 a at the end. In the present embodiment, the number of chambers 11 is six including the auxiliary chamber 12a. However, the number is not limited to this, and the shape of each chamber 11 including the auxiliary chamber 12a is not limited to this. (Circle, ellipse, triangle, etc.).

  In the present embodiment, the auxiliary chamber 12a is overlapped and fixed to one chamber 11 in a direction (Y-axis direction) intersecting with the continuous direction (X-axis direction) of each chamber 11. When the axis extending in the short side direction of the airbag 1 is P, which is the approximate center of the substantially T-shaped partitioning portion 16 suspended between the auxiliary chamber 12a and the chamber 11b, the axis P is the center. The auxiliary chamber 12a is folded back to the back side or the front side of the chamber 11b. Hereinafter, a mode in which the auxiliary chamber 12a is folded back to the back side of the chamber 11b will be described.

  4 is a schematic rear view of the airbag 1 as viewed from the direction of the white arrow in FIG. When the bottom length of the chamber 11 and the bottom length of the auxiliary chamber 12a are substantially the same length, when the auxiliary chamber 12a is folded around the axis P, the auxiliary chamber extends in a direction intersecting (substantially orthogonal) with the continuous direction. 12a covers the chamber 11b. And the substantially T-shaped partition part 16 suspended between the chamber 11b and the chamber 11c, and one of the outer peripheral short sides of the airbag 1, and is suspended in the short side direction of the airbag 1. A part of the partition 16 is sewn with a thread 17. The place to be sewn with the thread 17 is not limited to this place, and may be a portion where the partition portion 16 located on the lower side of the chamber 11b and the partition portion 16 located on the lower side of the auxiliary chamber 12a overlap. Moreover, as long as the auxiliary chamber 12a and the chamber 11b can be overlapped and fixed in the Y-axis direction, the auxiliary chamber 12a and the chamber 11b may be fixed by an adhesive or the like in addition to the stitching by the thread 17. In addition, in order to ensure the gas supply to the auxiliary chamber 12a and the chamber 11b, the gas passage by the conduit 14 is not stitched. Moreover, it is preferable that one of the locking portions 13 is protruded above the chamber 11b on which the auxiliary chamber 12a is superimposed.

  FIG. 5 is a schematic plan view showing a deployed state of the airbag 1 shown in FIG. When the airbag 1 is deployed, gas is supplied from the inflator 2 to the auxiliary chamber 12a and the chambers 11b, 11c, 11d, 11e, and 11f, respectively, and is inflated and deployed with a substantially elliptical shape in plan view. Since the auxiliary chamber 12a and the chamber 11b are overlapped and fixed, and the chamber 11b is connected to other chambers 11c and the like, the auxiliary chamber 12a and the chamber 11b have the forward direction of the vehicle 5 as the 12 o'clock direction. When it does, it develops so that it may push out diagonally which is about 8 o'clock.

  In FIG. 5, reference numeral 6 denotes an occupant. When the vehicle 5 moves in an oblique direction and collides with an obstacle, the occupant 6 moves in the arrow direction due to inertia. In this case, as described above, since the auxiliary chamber 12a and the chamber 11b are deployed in the direction of about 8 o'clock, that is, in the direction opposite to the arrow, the occupant 6 is protected so as to be wrapped by the airbag 1. In the present embodiment, the example in which the chamber 11a, which is one end of the airbag 1, is folded back as the auxiliary chamber 12a and is overlapped and fixed to the chamber 11b has been described. However, the chamber 11f, which is the other end, is used as the auxiliary chamber 12a. It may be folded back and fixed so as to overlap with the chamber 11e. Furthermore, in the present embodiment, an example in which one chamber 11a is folded back has been described. However, a plurality of chambers 11 may be folded back. For example, chambers 11a and 11b are auxiliary chambers and overlapped with chambers 11c and 11d. You may make it return and fix so.

Embodiment 2
FIG. 6 is a schematic front view showing a folded state of the airbag 1 according to the second embodiment. The auxiliary chamber 12a may be folded back from the front side. FIG. 6 shows a superimposed state of the auxiliary chamber 12a and the chamber 11b when viewed from the opposite direction of the white arrow in FIG. The auxiliary chamber 12a is folded to the front side around the axis P, and is part of the partition 16 that is one of the outer peripheral short sides of the airbag 1 and hangs in the short side direction of the airbag 1, and the chamber 11b. And a substantially T-shaped partitioning portion 16 suspended between the chamber 11 c and the chamber 11 c are sewn with a thread 17. The thread 17 is sewn to a portion except on the conduit 14.

  FIG. 7 is a schematic plan view showing a deployed state of the airbag 1 according to the second embodiment. When the airbag 1 is deployed, gas is supplied from the inflator 2 to the auxiliary chamber 12a and the chambers 11b, 11c, 11d, 11e, and 11f, respectively, and is inflated and deployed with a substantially elliptical shape in plan view. Since the auxiliary chamber 12a is overlapped and fixed to the chamber 11b by the yarn 17, the auxiliary chamber 12a is about 8 o'clock when the forward direction of the vehicle 5 is 12 o'clock with the fixed yarn 17 as the center. Extruded diagonally.

  In FIG. 7, reference numeral 6 denotes an occupant. When the vehicle 5 moves in an oblique direction and collides with an obstacle, the occupant 6 moves in the arrow direction due to inertia. In this case, as described above, since the auxiliary chamber 12a is deployed in the direction of about 8 o'clock, that is, in the direction opposite to the arrow, the occupant 6 is protected so as to be wrapped by the airbag 1.

  The second embodiment is configured as described above, and the other configurations and operations are the same as those of the first embodiment. Therefore, corresponding parts are denoted by the same reference numerals, and detailed description thereof is omitted.

Embodiment 3
The third embodiment relates to a form in which the shape of the auxiliary chamber 12a is different. FIG. 8 is a schematic perspective view showing the configuration of the airbag 1 according to the third embodiment. The chamber 11 has a length M in the short side direction that is the deployment direction of the airbag 1, in other words, the length in the long side direction of the chamber 11. On the other hand, the auxiliary chamber 12a is set to L whose length in the short side direction, which is the deployment direction of the airbag 1, is shorter than M. For example, L may be about half as long as M.

  FIG. 9 is a schematic rear view when the airbag 1 according to Embodiment 3 is viewed from the direction of the white arrow in FIG. 8. When the bottom length of the chamber 11 and the bottom length of the auxiliary chamber 12a are substantially the same length, when the auxiliary chamber 12a (end chamber 11a) is turned back to the back side about the axis P, it intersects with the continuous direction. In this direction, the auxiliary chamber 12a covers a part of the upper side of the chamber 11b. And the substantially T-shaped partition part 16 suspended between the chamber 11b and the chamber 11c, and one of the outer peripheral short sides of the airbag 1, and is suspended in the short side direction of the airbag 1. A portion where a part of the partition 16 overlaps is sewn with a thread 17. In this case, what is necessary is just to fix using the thread | yarn 17 except on the conduit | pipe 14, so that the stitching | suture length may be set to about L.

  In the configuration of the present embodiment, when the airbag 1 is inflated and deployed, the head of the occupant 6 is protected by the auxiliary chamber 12a positioned above the airbag 1 and the chamber 11b overlapping therewith. Moreover, since the shoulder part of the passenger | crew 6 is protected by the chamber 11b located in the lower side of the auxiliary | assistant chamber 12a, according to the overlapping degree of the auxiliary | assistant chamber 12a and the chamber 11b, the passenger | crew's 6 head and shoulder part are protected appropriately. It becomes possible to do. In the present embodiment, the length L in the long side direction of the auxiliary chamber 12a is about half of the length M in the long side direction of the chamber 11, but the length can be set freely. The length L in the long side direction of the chamber 12a may be set longer than the length M in the long side direction of the chamber 11. Further, in the present embodiment, the end chamber 11a is folded back to form the auxiliary chamber 12a. However, the inflow port 15 is connected to the conduit 14 without the end chamber 11a being folded back, and the partition 16 is formed around the outer periphery thereof. The auxiliary chamber 12a provided is provided separately and overlapped with the chamber 11a, and the substantially T-shaped partitioning portion 16 suspended between the partitioning portion 16 of the auxiliary chamber 12a and the chamber 11a chamber 11b is threaded. And may be fixed by sewing.

  The third embodiment is configured as described above, and the other configurations and operations are the same as those of the first and second embodiments. Therefore, corresponding parts are denoted by the same reference numerals, and detailed description thereof is omitted. To do.

Embodiment 4
As shown in the first to third embodiments, the auxiliary chamber 12a may be not only the one chamber 11 but also the airbag 1 that cuts and stitches the chamber 11 itself so as to be doubled. FIG. 10 is an explanatory diagram showing the configuration of the airbag 1 according to the fourth embodiment. 10B is a schematic front view showing the configuration of the airbag 1 according to Embodiment 4, and FIG. 10A is a schematic cross-sectional view taken along the line BB of FIG. 10B.

  In the airbag 1 according to the fourth embodiment, the first fabric 18 and the second fabric 19 that are rectangular in a front view face each other, and the auxiliary chamber 12a and the chamber 11a that become a bag shape when deployed, and the chambers 11b, 11c, and 11d. As shown in FIG. 10B, stitching is performed with the thread 17 to form partitions 16, 16,..., And spaces for the auxiliary chamber 12a, the chamber 11a, and the chambers 11b, 11c, 11d are formed. As shown in FIG. 10A, the chamber 11 b and the chamber 11 c are sewn between the chambers 11 b and the chamber 11 c except for the portion of the conduit 14. It is suspended in the side direction. The chambers 11b and 11c are formed with spaces by the first fabric 18 and the second fabric 19 and the partition portions 16 at both ends.

  The second fabric 19 is folded in an appropriate position toward the first fabric 18, and the end of the folded second auxiliary fabric 191 is located between the auxiliary chamber 12 a and the chamber 11 a and the chamber 11 b. At the position of the partitioning portion 16 that hangs down in the short-side direction, the thread 14 is sewn and fixed except for the portion of the conduit 14. Further, the other end of the second auxiliary fabric 191, the turning point of the second fabric 19, and the end of the first fabric 18 are stitched with a thread 17 at the end of the airbag 1 to form a partition portion 16. As a result, the auxiliary chamber 12a is fixed in an overlapping manner in a direction crossing the connecting direction of the chambers 11a, 11b, 11c, and 11d. Note that the length of the second auxiliary fabric 191 may be set to be longer than the short side length of the auxiliary chamber 12a or the chamber 11a. In the present embodiment, it is described that the thread 17 is sewn and fixed, but it may be fixed with an adhesive.

  Thus, the chamber 11a is a space surrounded by the first fabric 18 and the second auxiliary fabric 191 and the partition portions 16 at both ends on the back side of the airbag 1, and gas is supplied from the inflator 2 via the conduit 14. Supplied. On the other hand, the auxiliary chamber 12 a is a space surrounded by the second fabric 19, the second auxiliary fabric 191, and the partition portions 16 at both ends on the front side of the airbag 1, and gas is supplied from the inflator 2 through the conduit 14. The In the present embodiment, the first fabric 18 and the second fabric 19 have been described as being divided into two fabrics. However, one fabric is folded at one end and overlapped at the other end to be made of the same fabric. Needless to say, the first fabric 18, the second fabric 19, and the second auxiliary fabric 191 may be used.

  The fourth embodiment is configured as described above, and the other configurations and operations are the same as those of the first to third embodiments. Therefore, the corresponding parts are denoted by the same reference numerals and detailed description thereof is omitted. To do.

It is a typical side view which shows the attachment state of a curtain airbag. It is typical sectional drawing of the airbag by the AA line in FIG. It is a typical perspective view which shows the structure of an airbag. It is a typical rear view at the time of seeing an airbag from the outline arrow direction of FIG. FIG. 5 is a schematic plan view showing a deployed state of the airbag shown in FIG. 4. FIG. 6 is a schematic front view showing a folded state of the airbag according to the second embodiment. FIG. 6 is a schematic plan view showing a deployed state of the airbag according to the second embodiment. 6 is a schematic perspective view showing a configuration of an airbag according to Embodiment 3. FIG. FIG. 9 is a schematic rear view when the airbag according to Embodiment 3 is viewed from the direction of the white arrow in FIG. 8. FIG. 6 is an explanatory view showing a configuration of an airbag according to a fourth embodiment. It is a typical perspective view which shows the deployment state of the conventional curtain airbag. It is a typical top view which shows the expansion | deployment state of the conventional curtain airbag at the time of a side collision.

Explanation of symbols

1 Airbag (Curtain Airbag)
2 Inflator 3 Front pillar garnish 4 Tension belt 5 Vehicle 6 Crew 12a Auxiliary chamber 11a, 11b, 11c, 11d, 11e, 11f Chamber 13 Locking portion 14 Conduit 15 Inlet 16 Partitioning portion 17 Yarn 18 First fabric 19 Second fabric 51 Roof Side Rail 52 Window Glass 191 Second Auxiliary Fabric

Claims (8)

In the curtain airbag that is inflated and deployed by the gas supplied from the inflator,
A plurality of consecutive chambers to which gas is supplied from the inflator;
A partition that is provided around each chamber and separates each chamber;
A partition that separates one side of the adjacent chamber and the other side of the chamber when the chamber at the end overlaps the chamber adjacent to the chamber at the end in a direction crossing the direction in which the chambers are continuously provided. A fixing part for fixing the partitioning part on the other side of the adjacent chamber opposite to the part, and a partitioning part on one side of the chamber at the end part;
Curtain air bag, characterized in that it comprises a. In the curtain airbag that is inflated and deployed by the gas supplied from the inflator,
A plurality of consecutive chambers to which gas is supplied from the inflator;
A partition that is provided around each chamber and separates each chamber;
When the chamber at the end is overlapped with the chamber adjacent to the chamber at the end in a direction crossing the direction in which the chambers are connected, the partitioning portion below the chamber at the end and the lower side of the adjacent chamber And a fixing part to be fixed
A curtain airbag comprising:   Locking portion provided in upper partition of adjacent chamber
  The curtain airbag according to claim 1, further comprising:   The length of the end portion in the deployment direction of the chamber is shorter than the length of the adjacent chamber in the deployment direction.
  The curtain airbag according to claim 1 or 3, wherein In a method of manufacturing a curtain airbag that is inflated and deployed by supplying gas to a plurality of continuously provided chambers,
Among the plurality of continuous chambers, the end chamber is folded back,
Each chamber is provided with a partition that divides each chamber.
A partition that separates one side of the adjacent chamber and the other side of the chamber when the chamber at the end overlaps the chamber adjacent to the chamber at the end in a direction crossing the direction in which the chambers are continuously provided. A curtain airbag manufacturing method , comprising: fixing a partition part on the other side of the adjacent chamber opposite to the part and a partition part on one side of the chamber at the end part .   In a method of manufacturing a curtain airbag that is inflated and deployed by supplying gas to a plurality of continuously provided chambers,
  Among the plurality of continuous chambers, the end chamber is folded back,
  Each chamber is provided with a partition that divides each chamber.
  An end chamber is overlapped with a chamber adjacent to the end chamber in a direction crossing the direction in which the chambers are continuously connected, and a partition portion below the chamber at the end portion and a partition portion below the adjacent chamber And fix
  A method for manufacturing a curtain airbag, comprising:   A locking portion is provided in the upper partition of the adjacent chamber.
  The method for manufacturing a curtain airbag according to claim 5 or 6.   The length of the end portion in the deployment direction of the chamber is shorter than the length of the adjacent chamber in the deployment direction.
  The method for manufacturing a curtain airbag according to claim 5 or 7,

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