JP2011121473A - Curtain airbag device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain airbag device inflatable and deployable without bursting by window glass damaged by a side collision. <P>SOLUTION: The curtain airbag device 100 includes an airbag 140 folded or wound toward the upper end from the lower end, a tab 162 projecting from the upper end of the airbag, an arm piece 172 extending in the vehicle longitudinal direction on the vehicle outside of the airbag, a T-bracket 170 having a shaft piece 174 fixed to a vehicle body by overlapping with the tab 162 by extending upward from the center of the arm piece 172, a line 220 written on the lower end side of the arm piece 172 of the T-bracket on an outer surface of the airbag 140, and tapes 210 and 212 capable of holding a twisted state of the airbag by fixing the airbag twisted in the vicinity of the T-bracket 170 to the arm piece 172 of the T-bracket 170 so that the line 220 is positioned in a range height of the arm piece 172 of the T-bracket. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a curtain airbag device that inflates and deploys along a side surface in a vehicle compartment for the purpose of protecting an occupant during a side collision or rollover (rollover) of a vehicle.

  Curtain airbags that can protect a passenger's head even when a vehicle transitions from a side collision to a rollover are mainly attached to a roof side rail or the like inside a roof head trim above the door. Usually, the curtain airbag is attached in a state of being wound in a roll shape or the like so as to be attached to a limited storage space.

  As a means for attaching a wound curtain airbag to a vehicle body, for example, Patent Literature 1 discloses a curtain airbag mounting bracket. This mounting bracket has a projecting piece on the top. The overhanging piece prevents the curtain airbag folding body from striking against a body part such as a pillar garnish and moving upward.

JP 2009-23439 A

  When an oblique side collision occurs from the front of the vehicle, the curtain airbag device is deployed. In particular, when the vehicle collides with an obstacle such as a utility pole, the window glass of the vehicle is damaged. However, in the curtain airbag device provided with the mounting bracket as described in Patent Document 1, the entire airbag extending in the front-rear direction of the vehicle can only be guided so as to be deployed in a single downward direction along the window. As described above, since the entire airbag is deployed in the immediate vicinity of the window, the airbag may burst due to the broken glass, which may cause a problem in deployment of the airbag.

  In view of such a problem, an object of the present invention is to provide a curtain airbag device that can be inflated and deployed without bursting by a window glass damaged by a side collision.

  In order to solve the above problems, a typical configuration of a curtain airbag device according to the present invention includes an airbag folded or wound from a lower end toward an upper end, a tab protruding from the upper end of the airbag, A substantially T-shaped bracket having an arm piece extending in the vehicle front-rear direction on the vehicle outer side of the airbag, a shaft piece extending upward from the center of the arm piece and overlapping the tab and fixed to the vehicle body; and an outer surface of the airbag Fix the bracket marked on the lower end of the bracket arm piece and the airbag twisted in the vicinity of the bracket to the bracket arm so that the mark is positioned at the height of the bracket arm piece range. And a holding member capable of holding the twisted state of the airbag.

  According to the above configuration, the airbag can be attached to the vehicle body with only the peripheral portion of the bracket being twisted. Compared with the other portions, the twisted portion is unbalanced and unfolds in a direction away from the vehicle side surface because the lower surface of the airbag faces the vehicle center side. If a bracket is provided in a portion of the airbag which is likely to burst due to glass fragments, the peripheral portion of the bracket is deployed not to be directly under but to avoid the glass fragments. This prevents the airbag from bursting. In this way, even with an airbag formed by the same folding or winding, the deployment behavior can be partially changed.

  Further, according to the above configuration, when twisting a portion whose deployment direction is to be changed, the operator only has to twist until the mark marked on the airbag moves to a height within the range of the arm piece of the bracket. Since the operator can clearly confirm the degree of twisting of the airbag by visual observation, it is possible to give an appropriate twist to the airbag regardless of the skill level of the operator.

  The curtain airbag device further includes an airbag cover that covers the airbag in the longitudinal direction of the vehicle. The airbag cover includes a tab that is overlapped and fixed to the vehicle body, a slit that passes through the bracket, and an arm piece of the bracket. It is good to have the hole which exposes at least one end and the mark from the outside so that visibility is possible.

  According to the said structure, even if the airbag is coat | covered with the airbag cover, said state that a mark is located in the height of the range of the arm piece of a bracket can be visually confirmed from the outside. Therefore, while protecting the airbag from burrs generated at the welded seam of the body panel of the vehicle body by the airbag cover, it can be confirmed from the outside that an appropriate twist is applied to the airbag, and the quality of the curtain airbag device can be improved. It can be held.

  The airbag includes a gas duct for flowing gas in the vehicle front-rear direction at the upper end thereof, and a gas flow path for flowing gas downward from the gas duct to guide the gas to a chamber in the airbag, and the bracket is provided. The tab may be provided above the gas flow path.

  When the gas is guided downward along the gas flow path at the initial stage of deployment, the airbag is deployed downward. The gas flow path portion expands preferentially, and the peripheral portion expands as if pulled by this. As described above, the gas flow path portion is a dominant portion that affects the deployment behavior of other portions. By providing the bracket above the gas flow path portion, the change in the deployment behavior by the bracket is most effectively executed.

  The tab provided with the bracket may be in front of or behind the pillar of the vehicle, or in the same location as the pillar. If the airbag is deployed directly below, the airbag may be caught by, for example, the B pillar during deployment, and the deployment may end in failure. However, according to the said structure, by providing a bracket in the position before and behind a B pillar, or the position corresponding to it, the part can be unbalanced and developed in the direction which leaves | separates from a vehicle side surface. This prevents the airbag from being caught on the B-pillar.

  ADVANTAGE OF THE INVENTION According to this invention, the curtain airbag apparatus which can be inflate-deployed without bursting with the window glass damaged by the side collision can be provided.

It is a figure which illustrates embodiment of the curtain airbag apparatus by this invention. FIG. 2 is a partially enlarged view of the curtain airbag device of FIG. 1. FIG. 2 is a front assembly view of the curtain airbag device of FIG. 1. It is the enlarged view which looked at the T bracket of FIG. 3 from the vehicle outer side. It is AA sectional drawing of FIG. It is a figure which illustrates the procedure until an airbag is twisted like FIG. 5 and it fixes to T bracket. It is a figure which illustrates the deployment behavior of the curtain airbag device of FIG. It is a figure which illustrates the airbag of the deployment state of FIG. FIG. 9 is a diagram illustrating another variation of the position of the T bracket, as compared with FIG. 8. It is a figure which illustrates the modification of FIG.

  Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The dimensions, materials, and other specific numerical values shown in the embodiments are merely examples for facilitating understanding of the invention, and do not limit the present invention unless otherwise specified. In the present specification and drawings, elements having substantially the same function and configuration are denoted by the same reference numerals, and redundant description is omitted, and elements not directly related to the present invention are not illustrated. To do.

(Curtain airbag device)
FIG. 1 is a diagram illustrating an embodiment of a curtain airbag device according to the present invention. FIG. 1A illustrates the curtain airbag device 100 when not deployed, and FIG. 1B illustrates the curtain airbag device 100 when deployed. Hereinafter, all the embodiments will be described as a curtain airbag device for the right side surface of the vehicle 102 as shown in FIG. 1, but the curtain airbag device for the left side surface has a similar symmetrical structure.

  As shown in FIG. 1A, the curtain airbag device 100 can be stored above the side of the vehicle compartment. The curtain airbag device 100 is attached to the roof side rail 110. Usually, a plurality of pillars exist on the side of the passenger compartment. These are called an A pillar 104, a B pillar 106, a C pillar 108, and a D pillar 109 from the front of the vehicle 102. The inside of each pillar is covered with a pillar trim made of a resin material or the like to improve the aesthetics of the inside of the car.

  The curtain airbag device 100 includes an airbag 140, which extends in the vehicle front-rear direction and is stored in a state of being folded or wound from the lower end toward the upper end as shown in FIG. . The airbag 140 is formed into a bag shape by, for example, sewing a base fabric that constitutes the surface of the airbag 140 on the front and back sides or by using OPW (One-Piece Woven).

  The curtain airbag device 100 also includes a cylinder type inflator 120, which supplies gas to the airbag 140 from a predetermined position at the upper end of the airbag 140. When a side collision or rollover (rollover) occurs in the vehicle 102, first, a sensor (not shown) provided in the vehicle 102 detects an impact and transmits an ignition signal to the inflator 120. Next, the explosive in the inflator 120 burns, and the generated gas is supplied to the airbag 140.

  The curtain airbag device 100 also includes a resin protector 142 to prevent damage such as burst of the airbag 140.

  FIG. 2 is a partially enlarged view of the curtain airbag device of FIG. 1, and illustrates a state before being attached to the vehicle 102. The curtain airbag device 100 also includes a jump bracket 130. The jump bracket 130 is a member that is positioned below the airbag 140 and that guides the airbag 140 to the inside of the passenger compartment by interfering with the airbag 140 that is deployed downward. The jump bracket 130 is made of a highly rigid metal, and even when the airbag 140 is rapidly inflated and deployed by supplying gas, the deployment behavior can be suitably guided to the inside of the passenger compartment.

  The curtain airbag device 100 further includes an airbag cover 150 that covers the airbag 140 in the vehicle longitudinal direction. The airbag cover 150 is provided for the purpose of protecting the airbag 140 from burrs generated at welded joints (not shown) of the body panel of the vehicle body 200.

  The airbag cover 150 may be made of the same material as the webbing used for the seat belt (not shown), and the same base fabric as that of the airbag 140 may be used.

  As illustrated in FIGS. 1 and 2, the curtain airbag device 100 includes a plurality of tabs 160, 162, and 164 protruding from the upper end of the airbag 140. The airbag 140 is fixed to the vehicle body via these tabs. In each drawing of this embodiment, among the plurality of tabs, only the first, second, and sixth tabs 160, 162, and 164 from the front are represented by reference numerals, but the other tabs have the same configuration. Have

  As illustrated in FIG. 2, the tab 162 in the region covered with the airbag cover 150 appears outside through a slit 152 (FIG. 3) provided in the airbag cover 150.

  When gas is supplied from the inflator 120, the airbag 140 is inflated and deployed downward along the side of the passenger compartment (such as the side window 112) as shown in FIG. 1B to protect the occupant. According to the airbag 140, it is possible to protect the passengers in the front seat and the rear seat.

(T bracket)
FIG. 3 is an assembly view in front of the curtain airbag device 100 of FIG. The curtain airbag device 100 includes a substantially T-shaped bracket (hereinafter referred to as “T bracket 170”) at the position of the second tab 162 from the front.

  4 is an enlarged view of the T bracket 170 of FIG. 3 as viewed from the outside of the vehicle, that is, from the opposite direction to FIG. The T bracket 170 has an arm piece 172 extending in the vehicle front-rear direction on the vehicle exterior side of the airbag 140. The T bracket 170 has a shaft piece 174 that extends upward from the center of the arm piece 172 and is fixed to the vehicle body 200 so as to overlap the tab 162.

  5 is a cross-sectional view taken along the line AA in FIG. As described above, the shaft piece 174 of the T bracket 170 overlaps the tab 162, and the tab 162 is sandwiched between the shaft piece 174 and the bracket fixing plate 180. The overlapping bracket fixing plate 180, tab 162, and shaft piece 174 are inserted through the slit 152 and appear outside the airbag cover 150, and the bolt 190 penetrates them and is driven into the vehicle body 200. The curtain airbag device 100 is fixed to the vehicle body 200 by mechanically crimping the bolts 190.

(tape)
As illustrated in FIGS. 3 and 4, the curtain airbag device 100 includes tapes 210 and 212 as holding members that fix the airbag 140 to the arm piece 172 of the T bracket 170. In FIG. 3, only the tapes 210, 212, and 214 are provided with reference numerals, but all other similarly shown holding members are also tapes. The airbag 140 illustrated in FIG. 5 is fixed by tapes 210 and 212 in a state where a twist as described below is given (in FIG. 5, only the tape 210 in front of the vehicle is visible).

  All of the tapes including the tape 210 are ruptured without hindering the expansion and deployment when the airbag 140 is inflated and deployed. The tape 210 is an example of a holding member. Any holding member may be used as long as the twisted state of the airbag 140 can be held by a frictional force or the like and the holding can be released without hindering the inflation and deployment of the airbag 140.

(Airbag twist / line)
FIG. 6 is a diagram illustrating a procedure until the airbag 140 is twisted and fixed to the T bracket 170 as shown in FIG. 5. FIG. 6A illustrates a state in which the T bracket 170 is attached to the tab 162 of the airbag 140 that is folded or wound from the lower end toward the upper end. At this time, the airbag 140 is not yet twisted.

  The airbag 140 has a line 220 (see FIG. 4) extending in the vehicle front-rear direction on the outer surface of the airbag 140 and at the lower end of the arm piece 172 of the T bracket 170. The line 220 serves as a mark when twisting the airbag 140.

  FIG. 6B illustrates a state where the airbag 140 is twisted. From the state shown in FIG. 6A to the state shown in FIG. 6B, the airbag 140 is twisted while maintaining the positions of the two folds 224 and 226 over the entire length in the vehicle front-rear direction. Therefore, the airbag 140 is twisted so as to roll upward along the T bracket 170 while rotating clockwise.

  As a result, the line 220 located below the arm piece 172 of the T bracket 170 in FIG. 6A before twisting is positioned at a height within the range of the arm piece 172 in FIG. 6B after twisting. . Since the line 220 was originally located at the lower end of the arm piece 172, the line 220 is raised by twisting the airbag 140, and soon moves to the above height. By visually observing that the line 220 as a mark has moved to a height within the range of the arm piece 172, it can be confirmed that the airbag 140 has been properly twisted. In FIG. 5, the air bag 140 twisted in the vicinity of the T bracket 170 is fixed to the arm piece 172 of the T bracket 170 with the tape 210. The air bag 140 can be kept twisted by the tape 210 and attached to the vehicle body in that state.

  According to the present embodiment, as illustrated in FIGS. 6A and 6B, when twisting a portion where the deployment direction is desired to be twisted, the operator uses the arm 220 of the T bracket 170 to mark the line 220 marked on the airbag 140. It may be twisted until it moves to a height in the range of the piece 172. Since the operator can clearly confirm the degree of twist of the airbag 140 by visual observation, an appropriate twist can be given to the airbag 140 regardless of the skill level of the operator.

  In this embodiment, a line 220 extending over the entire length of the airbag 140 in the longitudinal direction of the vehicle is used as a mark. However, any shape is acceptable as long as it is marked on the outer surface of the airbag 140 and the degree of twist can be confirmed. It is good also as a mark of a description range.

  FIG. 6C is a diagram illustrating the sixth tab 164 of the airbag 140 for comparison with the second tab 162 to which the T bracket 170 is attached as in FIGS. 6A and 6B. . The twist imparted by the second tab 162 is gradually eliminated, and is almost eliminated when the sixth tab 164 in FIG. 6C is reached. That is, the cross-sectional view of the airbag 140 in FIG. 6C is returned to the same as that before twisting in FIG.

(Assembly order of curtain airbag device)
Here, the assembly order of the curtain airbag device 100 will be summarized. As a first step, the airbag is folded or wound from the lower end toward the upper end to form a roll-shaped airbag 140 (FIG. 3). As a second step, the T bracket 170 is attached to the second tab 162 from the front of the airbag 140 (FIG. 6A). As the third step, as illustrated in FIG. 6B, the airbag 140 is twisted so that the line 220 of the airbag 140 is positioned at a height within the range of the arm piece 172 of the T bracket 170. As the fourth step, the airbag 140 is fixed to the arm piece 172 with the tapes 210 and 212 while keeping the twisted state (FIG. 5). Further, as an optional fifth step, the airbag cover 150 is attached to the airbag 140 (FIG. 5).

(Deployment behavior)
FIG. 7 is a diagram illustrating the deployment behavior of the curtain airbag device 100 of FIG. FIGS. 7A and 7B illustrate the unfolding behavior in the vicinity of the tab 162 to which the T bracket 170 is attached. 7C and 7D illustrate the unfolding behavior near the tab 164 where the T bracket 170 is not attached.

  The twisted portion in FIG. 7 (a) is illustrated in FIG. 7 (b) because the lower surface of the airbag 140 faces the vehicle center side as compared with the untwisted portion in FIG. 7 (c). As a result, it unfolds in a direction away from the side of the vehicle. If the T bracket 170 is provided in a portion of the airbag 140 that is likely to burst due to glass fragments, the peripheral portion of the T bracket 170 is deployed not to be directly below but to the vehicle center side so as to avoid the glass fragments. This prevents the airbag 140 from bursting. As described above, even with the airbag 140 formed by the same folding or winding, the deployment behavior can be partially changed.

  In the non-twisted portion of FIG. 7C, the airbag 140 is covered with the protector 142 on the upper side, and is fixed to the protector 142 with the tape 214. And it expand | deploys like FIG.7 (d). In the vicinity of the sixth tab 164, unlike the position of the second tab 162, the sixth tab 164 expands at a position close to the side window 112. However, since there is less risk of breakage of the glass compared to the vicinity of the second tab 162, there is no problem.

  As described above, according to the present embodiment, it is possible to control the deployment direction of the individual portions of the airbag 140 while satisfying the performance as the airbag device.

(T bracket position)
FIG. 8 is a view illustrating the airbag 140 in the deployed state of FIG. The airbag 140 includes an inflatable region 242 that inflates when the vehicle 102 collides or rolls over, and a non-inflatable region 244 (indicated by hatching in the drawing) that does not inflate and partitions the inflated region.

  A gas duct 246 and a chamber 248 are provided in the expansion region 242. The gas duct 246 is disposed substantially horizontally at the upper end of the airbag 140 and allows the gas supplied from the inflator 114 through the gas receiving hole 249 to flow in the vehicle front-rear direction. The gas that has flowed through the gas duct 246 flows downward, for example, through the gas flow path 250, and is guided to the chamber 248 in the airbag 140.

  The chamber 248 is a portion that comes into direct contact with an occupant during an emergency such as a collision. The passenger is protected by the chamber 248 from crashing into the side of the vehicle, jumping out of the vehicle, and the like. As illustrated in FIG. 8, a plurality of chambers are provided in the vehicle front-rear direction in addition to the chamber 248.

  The second tab 162 from the front to which the T bracket 170 is attached is provided above the gas flow path 250. When the gas is guided downward along the gas flow path 250 in the initial stage of deployment, the airbag 140 is deployed downward. A portion of the gas flow path 250 is preferentially developed, and its peripheral portion is developed so as to be pulled by this. Thus, the portion of the gas flow path 250 is a dominant portion that affects the deployment behavior of other portions. By providing the T bracket 170 above the portion of the gas flow path 250, the change of the deployment behavior by the T bracket 170 is most effectively executed.

  FIG. 9 is a diagram illustrating another variation of the position of the T bracket, as compared with FIG. The configurations of the T brackets 270, 272, and 274 illustrated in FIG. 9 are the same as those of the T bracket 170. As illustrated in FIG. 9A, T brackets 270 and 272 may be provided at two tabs 164 and 168 before and after the B pillar 106 of the vehicle. Alternatively, as illustrated in FIG. 9B, a T bracket 274 may be provided on the same tab 166 as the B pillar 106.

  If the airbag 140 is deployed right below, it may be caught by the B pillar 106 during deployment and the deployment may fail. However, according to the above configuration, by providing the T bracket at the front and rear of the B pillar 106 or at a position coincident with the B pillar 106, the portion can be developed in a direction away from the side surface of the vehicle. This prevents the airbag 140 from being caught on the B pillar 106.

  Note that the C pillar 108 is also prevented from being caught on the C pillar 108 by providing a T bracket on the front and rear of the C pillar 108 or at the same position. The position where the T bracket is attached is not limited to those illustrated in FIGS. 8 and 9. Depending on the purpose, it may be attached to, for example, the first tab 160 existing in the region of the side window 112.

(Reverse twist)
In addition, you may fix the T bracket provided in the location where there is little danger of the burst by a glass piece in the state which twisted the airbag 140 reversely. For example, of the T brackets 270 and 272 illustrated in FIG. 9A, the airbag 140 is fixed to the T bracket 270 located downstream of the gas supplied from the inflator 114 in a twisted direction. Also good. That is, in the vicinity of the T bracket 270, the airbag 140 may be fixed in a state where the airbag 140 is twisted so that the lower surface of the airbag 140 faces the outside of the vehicle.

  This is because the effect of preventing the airbag 140 from being caught on the B-pillar 106 can be obtained only by twisting the airbag 140 toward the vehicle center in the T bracket 272 on the gas upstream side. Therefore, if there is little risk of burst due to glass fragments at the T bracket 270 on the downstream side of the gas, the deployment is smooth by twisting the airbag 140 in the opposite direction to balance against the twist on the upstream side. Done.

(Airbag cover)
Refer to FIGS. 3 and 4 again. The airbag cover 150 is provided with four holes 230, 232, 234, and 236 around the slit 152 described above. Among these, as illustrated in FIG. 4, both ends of the arm piece 172 of the T bracket 170 and the line 220 are visibly exposed from the outside through the holes 230 and 232.

  The airbag cover 150 is not an indispensable element for producing the function and effect of the present embodiment that imparts an appropriate twist to the airbag 140. However, since the holes 230 and 232 are provided, even when the airbag 140 is covered with the airbag cover 150, the line 220 is positioned at a height within the range of the arm piece of the T bracket 170. Can be visually confirmed from the outside.

  Therefore, the airbag 140 can be confirmed from the outside that an appropriate twist is applied to the airbag 140 while protecting the airbag 140 from burrs generated at the welded seam of the body panel of the vehicle body 200 by the airbag cover 150. The quality of the device 100 can be maintained.

  Only one of the holes 230 and 232 may be provided so that at least one end and the line 220 can be confirmed at both ends of the arm piece 172 of the T bracket 170. However, as in this embodiment, it is desirable that both ends of the arm piece 172 and the line 220 be visible because reliability is improved in confirming appropriate torsion. The holes 234 and 236 are used when the airbag cover 150 is applied symmetrically to the curtain airbag device for the left side surface of the vehicle 102.

  FIG. 10 is a view illustrating a modification of the airbag cover of FIG. In FIG. 10, instead of the holes 230 and 232, one large oval hole 238 is provided. Thus, one hole 238 in which both ends of the arm piece 172 and the line 220 can be confirmed at the same time may be provided.

  The preferred embodiments of the present invention have been described above with reference to the accompanying drawings. However, the embodiments described above are preferred examples of the present invention, and other embodiments can be implemented by various methods. Can be carried out. The invention is not limited to the detailed shape, size, configuration, and the like of the components shown in the accompanying drawings unless otherwise specified in the present specification. In addition, expressions and terms used in the present specification are for the purpose of explanation, and are not limited thereto unless otherwise specified.

  Therefore, it is obvious for those skilled in the art that various changes and modifications can be conceived within the scope of the claims, and these naturally belong to the technical scope of the present invention. It is understood.

  INDUSTRIAL APPLICABILITY The present invention can be used for a curtain airbag device that inflates and deploys along a side surface in a vehicle compartment for the purpose of protecting an occupant during a vehicle side collision or rollover (rollover).

DESCRIPTION OF SYMBOLS 100 ... Curtain airbag apparatus 102 ... Vehicle 104 ... A pillar 106 ... B pillar 108 ... C pillar 109 ... D pillar 110 ... Roof side rail 112 ... Side window 120 ... Cylinder type inflator 130 ... Jump bracket 140 ... Air bag 142 ... Protector 150 ... Airbag cover 152 ... Slit 160, 162, 164 ... Tab 170 ... T bracket 172 ... Arm piece 174 ... Shaft piece 180 ... Bracket fixing plate 190 ... Bolt 200 ... Car body 210, 212, 214 ... Tape 220 ... Line 224 226 ... creases 230, 232, 234, 236 ... holes 246 ... gas duct 250 ... gas flow path

Claims (4)

An airbag folded or wound from the lower end toward the upper end;
A tab protruding from the upper end of the airbag;
A substantially T-shaped bracket having an arm piece extending in the vehicle front-rear direction on the vehicle outer side of the airbag, and a shaft piece extending upward from the center of the arm piece and overlapping the tab and fixed to the vehicle body;
A mark printed on the outer surface of the airbag and at the lower end of the arm piece of the bracket;
The air bag twisted in the vicinity of the bracket is fixed to the arm piece of the bracket so that the mark is positioned at a height within the range of the arm piece of the bracket, thereby maintaining the twisted state of the air bag. Possible holding members;
A curtain airbag device comprising: An airbag cover that covers the airbag over the vehicle longitudinal direction;
The airbag cover is
A slit through which the tab and bracket fixed to the vehicle body overlap and are inserted outward;
The curtain airbag device according to claim 1, further comprising: a hole that exposes at least one end of the arm piece of the bracket and the mark so as to be visible from the outside. The airbag includes a gas duct that flows gas in the vehicle front-rear direction at the upper end thereof, and a gas flow path that flows gas downward from the gas duct and guides gas to a chamber in the airbag,
The curtain airbag device according to claim 1 or 2, wherein the tab provided with the bracket is provided above the gas flow path.   3. The curtain airbag device according to claim 1, wherein the tab provided with the bracket is in front of or behind a pillar of the vehicle or at the same location as the pillar. 4.

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