JP4622621B2 - Curtain airbag device - Google Patents

Description

This invention relates to a curtain airbag device, in particular, vehicles, buildings, aircraft, trains, ships, can be used in spacecraft and space stations, etc., a window, an opening portion such as a door (hereinafter, Wind portion) The present invention relates to a curtain airbag device that expands and covers instantaneously.

  2. Description of the Related Art Conventionally, there is known a curtain airbag device that covers and expands and winds a window portion instantaneously in a curtain shape when a vehicle collides.

  In this curtain airbag device, a non-deployed curtain part is accommodated at the periphery of the window part, and the curtain part is covered by opening the curtain part in a predetermined state (for example, at the time of a collision).

However, in this deployed state, if tension (tension) does not occur in the curtain portion, the window portion cannot be reliably covered. Thus, in the curtain airbag device, how to generate tension at the time of deployment is conventionally known. Has become a problem.

Conventionally, in order to generate this tension, for example , in a rectangular window part, the base part of the curtain part is fixed to three sides of the periphery of the window part, and expansion that expands by gas in the developing part that becomes a free end part when deployed By providing a portion (air chamber) and supplying gas to the inflating portion, the apparent length of the free end is shortened to generate tension.

  However, in this case, in order to cover the large window portion, it is necessary to make the expansion portion quite large, and since it is necessary to supply a large amount of gas to the expansion portion, the size of the wind portion that can be covered is large. There was a problem that there was a limit.

  Therefore, as in Patent Document 1 below, in the curtain airbag device that covers the back window of the vehicle, the curtain portion is stored at the upper edge of the bag window, and the tension applying support point is provided at the intermediate position between the left and right edges of the bag window. It has been proposed to generate tension by deploying the curtain portion below the tension applying support point during deployment and expansion.

  Also, in Patent Document 2 below, guide rails extending in the vertical direction are provided at the left and right ends of the back window, and the curtain portion housed in the upper edge of the bag window is moved downward along the guide rail during expansion. There have been proposed those that generate tension by changing the fixing position (supporting position) of the curtain portion.

As disclosed in each of these Patent Documents 1 and 2 , by providing a tension applying support point and a guide rail, it is possible to support the curtain part other than the base part. Even if there is little, it seems that tension can be obtained in the curtain part.

JP 2004-58849 A JP 2004-58850 A

  However, in the case of Patent Document 1, first, the tension applying support point and the curtain part are connected by the cloth body (extension part) to define the position of the curtain part, and the fixing position of the curtain part does not move. When the expansion force disappears in the curtain part, the cloth-like body is loosened. As a result, there is a problem that the tension of the curtain part cannot be maintained.

  Then, although it is possible to move the fixed position of a curtain part like patent document 2, in this case, since sliding resistance arises between guide rails when moving the fixed position of a curtain part, There is a problem that rapid deployment and expansion cannot be performed. Also. When the guide rail is deformed by an impact at the time of a collision or the like, there is a problem that proper expansion and expansion may not be possible.

  Furthermore, even if the fixing position of the curtain portion is simply moved, there is a problem that it is not possible to obtain the tension of the curtain portion on the deployment direction side from the fixing position.

  Therefore, according to the present invention, in the curtain airbag device, by moving the fixed position of the curtain portion, the tension of the curtain portion can be maintained even when the expansion force is lost, and the fixed position is moved. In this regard, it is an object of the present invention to provide a curtain airbag device in which the curtain portion can be quickly deployed and the tension of the curtain portion on the deployment direction side of the fixed position can be obtained.

In order to achieve such an object, in the invention according to claim 1 of the present invention, the window portion is stored in the first side and the second side of the peripheral portion of the window portion in the storage state, and the window portion is expanded in the expanded state. In a curtain airbag device comprising: a curtain portion that expands and inflates so as to cover; and a gas supply means that supplies gas to the expansion portion formed in the curtain portion so that the curtain portion expands and inflates in a predetermined state. The second side is provided with a support portion corresponding to a side portion when the curtain portion is expanded and inflated, and the curtain portion is expanded with the vicinity of the tension portion located in the vicinity of the support portion when the curtain portion is expanded and expanded. the distal end portions near the time of inflation is connected, the support portion engageable with the coupling member is provided, wherein the curtain portion is in a retracted state, the distal end portion positioned in the deployment direction leading side when deployed and inflated, the support In the vicinity of the Serial tension section, wherein are accommodated so as to be closer to the first window side, at the time of expansion and inflation, by the force of expansion of the expanding portion, with the distal end portion is moved in the deployment direction, the tension unit is supported parts moved to the vicinity of, together with the coupling member is engaged with the supporting portion, the tip portion of the inflation portion, as expanded and inflated beyond the side facing the first side or second side of the window portion It is configured.

  With such a configuration, when the curtain portion is deployed and inflated, the expansion side of the expansion portion causes the tip side portion located near the support portion to move in the deployment direction during storage, and the tension close to the first side during storage. The part moves to the vicinity of the support part and engages with the support part.

  For this reason, at the time of expansion and expansion of the curtain portion, the tension portion moves to the support portion, and the tension of the curtain portion can be generated at the position of the support portion.

  That is, since the tension part that was close to the first side during storage is engaged by the support part that is separated from the first side by the expansion force of the expansion part, the length of the first side and the second side Even if tension is not generated at a distance, the tension can be generated by moving the fixed position of the curtain portion.

  Further, the front end portion of the expanding portion expands and expands beyond the sides facing the first side and the second side of the window portion, thereby extending to the side where the expanding portion faces.

  For this reason, the front end part of the inflating part is engaged with the facing side, and the tension of the curtain part on the deployment direction side from the support part can also be obtained.

  Here, the first side, the second side, and the facing side are concepts that include not only a straight line but also a curved line.

  Further, the specific structure of the support part is not particularly limited as long as it can support the tension part of the curtain part during expansion and expansion, such as a support pin, a support hook, and a support hole.

  Furthermore, the window part is a concept including not only a window part composed of one window but also a window part in which a plurality of windows are connected in series.

  Further, the amount exceeding the side where the tip of the inflating part faces is not particularly limited as long as the tension of the curtain part on the deployment direction side from the support part can be obtained, but when installed in a vehicle, it is about 5 to 30 cm. It is desirable to set to.

According to the second aspect of the present invention, in the housed state, the wind part is housed in the first side located at the center, the second side located on both sides thereof, and the third side, and the window part is deployed in the expanded state. A curtain airbag comprising: a curtain portion that expands and inflates so as to cover a portion; and a gas supply means that supplies gas to the expansion portion formed in the curtain portion so that the curtain portion expands and expands in a predetermined state. In the apparatus, the second side is provided with a second side support portion corresponding to one side portion when the curtain portion is expanded and expanded, and the other side when the curtain portion is expanded and expanded is provided on the third side. A third side support part is provided corresponding to the side part of the second side, and the curtain part has a second side side tension part in the vicinity of the second side support part at the time of expansion and expansion and a second part at the time of expansion and expansion. The side side tip side portion vicinity is connected, and the second side support portion and A connecting member capable of being connected, and connecting the vicinity of the third side tension portion located in the vicinity of the third side support portion during deployment and expansion and the vicinity of the third side end tip side during deployment and expansion, three sides support portion engageable with the coupling member is provided, wherein the curtain portion is in a retracted state, the second window side distal end portion located at the developing direction leading end side of the second window side when deployed and inflated, the second The third side tip end side located near the side support portion and located at the tip end side in the deployment direction on the third side during deployment and expansion is located near the third side support portion and the second side side. The tension part and the third side tension part are accommodated so as to be close to the first side, and when the expansion part is inflated and expanded, the second side side tip side part and the first side are caused by the expanding force of the expansion part. with three sides side distal end portion is moved to the respective expansion direction, said third window side Zhang and the second window side tension portion Part moves respectively to the second side support portion near the third side supporting portion near the with each connecting member engages the respective third side support portion and the second side support portion, the tip portion of the inflation portion Is configured to expand and expand beyond the side facing the first side, second side or third side of the window portion.

  With such a configuration, the curtain portion is expanded by the expansion force of the expansion portion at the time of deployment and expansion, and the second side side tip side portion located near the second side support portion and the third side support portion located near the third side support portion when stored. The side side tip side part moves in the deployment direction, and the second side side tension part and the third side side tension part, which are located close to the first side side during storage, respectively, Moving to the vicinity of the three-side support portion, the second-side support portion and the second-side support portion are engaged.

  For this reason, at the time of expansion and expansion of the curtain part, the second side tension part and the third side tension part move to the second side support part and the third side support part, respectively. Tension can be generated between the third side support portions.

  That is, the second side tension portion and the third side tension portion that are close to the first side during storage are the lengths of the first side, the second side, and the third side due to the expansion force of the expansion portion. Even if tension is not generated at such a distance, the tension can be generated by moving the fixed position of the curtain portion.

  Therefore, when the window portion opening is substantially rectangular, tension can be generated in the curtain portion without enlarging the expanding portion and without requiring a large amount of gas.

  And since the fixed position of a curtain part moves, even if the expansion force of an expansion part falls, the tension | tensile_strength of a curtain part can be maintained.

  Furthermore, the movement of the fixed position of the curtain portion does not use a guide rail, so that no sliding resistance is generated, and the curtain portion can be rapidly expanded and expanded.

  Further, the front end portion of the expanding portion expands and expands beyond the sides facing the first side, the second side, and the third side of the window portion, thereby extending to the side where the expanding portion faces.

  For this reason, it will engage with the side which an inflating part faces, and can obtain tension of a curtain part in the deployment direction side rather than a support part.

  Therefore, it is possible to obtain tension in the development direction side from the support portion, and it is possible to generate and maintain tension throughout the curtain portion.

  The second side and the third side are not particularly limited in shape as long as they are sides that extend opposite to each other. Further, the shape of the window portion may be a rectangle, a parallelogram, a trapezoid, or the like.

  According to a third aspect of the present invention, an angle formed by each side is set to an obtuse angle.

  With such a configuration, in the first aspect of the invention, the first side and the second side, in the second aspect of the invention, the first side and the second side, and the first side and the third side. By setting the angle formed to be an obtuse angle that is wider than a right angle, the tension portion is supported by the support portion located on the outer side of the storage position when the curtain portion is deployed and expanded.

Therefore, a smaller inflatable portion which is required to generate a tension in the curtain portion, or, without any need, the tension can be generated in a curtain portion, claim 1 and claim The effect of invention of 2 description can be acquired more.

In the invention of claim 4, wherein said inflatable portion, when expanded and inflated, the said first side, second side, substantially columnar from the three sides of at least several Re one side to the tip beyond the facing sides It is comprised as follows.

With such a configuration, the gas supply to the distal end of the inflatable portion is to be done quickly, or One expansion unit in a deployed inflated state will extend substantially columnar to the side that faces.

  Therefore, the curtain portion can be rapidly expanded and expanded, and the expansion portion can be extended in a column shape so as to cross the window portion, so that the tension of the curtain portion is reliably increased in the expansion direction. be able to.

  According to a fifth aspect of the present invention, the expanding portion is formed in a substantially columnar shape in the vicinity of at least one side of the second side and the third side.

  With such a configuration, the tension part formed on the second side or the third side can be moved to the support part more quickly.

  Therefore, the tension portion can be quickly engaged with the support portion, and tension can be applied to the curtain portion at an early stage.

  According to a sixth aspect of the present invention, the window portion is a side window provided on a side portion of the vehicle, and the predetermined state is a vehicle collision time, a collision prediction time or a rollover determination time, and the expansion portion is In the expanded and inflated state, it is set so as to cross the belt line at the lower end side of the side window from the first side above the vehicle, and in a side view of the vehicle, it is approximately at a position where it overlaps with a pillar extending vertically between the window portions. It is formed in a columnar shape.

  With such a configuration, the curtain airbag device of the present invention can be applied as a curtain airbag that covers the side window on the side of the vehicle when the vehicle collides. Further, the expansion portion of the curtain portion can be expanded and expanded so as to extend below the belt line, and further expanded and expanded at a position where it overlaps with each pillar.

  For this reason, even in a curtain airbag device that covers a large window portion called a side window of a vehicle, a region with high tension is formed in a wide range in the vehicle front-rear direction of the curtain portion by using a highly rigid pillar. Can do.

  Therefore, a passenger | crew's head etc. can be restrained reliably by a curtain part, and a passenger | crew's movement to the vehicle outward direction can be suppressed reliably.

  According to the present invention, when the curtain portion is deployed and expanded, the tension portion moves to the support portion, and the tension of the curtain portion can be generated at the position of the support portion.

  That is, since the tension part that was close to the first side during storage is engaged by the support part that is separated from the first side by the expansion force of the expansion part, the length of the first side and the second side Even if tension is not generated at a distance, the tension can be generated by changing the fixing position of the curtain portion.

  In addition, the front end portion of the inflating portion expands and inflates beyond the sides facing the first side and the second side of the window portion, so that the inflating portion engages with the facing side, and is forward of the support portion. The tension in the unfolding direction can also be obtained.

  Therefore, in the curtain airbag device, by moving the fixed position of the curtain portion, the tension of the curtain portion can be maintained even when the inflating force is lost, and the movement of the fixed position can be performed by the guide rail. Since it is not what is performed, the curtain portion can be rapidly expanded and expanded. Furthermore, since the tension of the curtain portion on the deployment direction side from the fixed position can also be obtained, the tension of the curtain portion can be improved over the entire area.

The embodiments of the present invention will be described in detail with reference to the accompanying drawings.
(First Embodiment)
First, FIGS. 1 to 5, it will be described first embodiment of the curtain air bag device of the present invention. The first embodiment of the present invention is a curtain airbag device 2 installed on a back door 1 of a vehicle, FIG. 1 is a rear view of the vehicle showing the curtain airbag device 2 in a stored state, and FIG. 3 is a rear view of the vehicle showing the curtain airbag device 2, FIG. 3A is a detailed view of the main part of the support pin of the curtain airbag device 2 in the stored state, and FIG. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 3B, and FIG. 5 is a perspective view of the main part showing the side of the curtain part.

  As shown in FIGS. 1 and 2, the curtain airbag device 2 is installed at the peripheral edge of the back window 3 of the back door 1. A base casing 4 that is installed in a substantially gate shape on the three sides of both side edges 32 and 33, a cloth curtain portion 5 that is folded and stored in the base casing 4, and a back door 1 that is above the base casing 4. And an inflator 6 for supplying gas to the curtain unit 5 at the time of a collision, an airbag sensor (not shown) for detecting an impact or the like, a detection signal of the airbag sensor, a collision, a vehicle rollover, A control unit (not shown) that transmits a gas supply signal when it is determined that the possibility of collision or rollover is equal to or greater than a predetermined degree.

  The above-described base casing 4 is composed of a metal frame member having a substantially U-shaped cross section that is open to the inner side of the back window 3, and has an upper edge portion 4 a installed on the upper edge 31 of the back window 3, and both side edges. The right edge part 4b installed in 32,33 and the left edge part 4c are provided.

  In addition, support pins 7 and 7 are provided at the lower ends of the right edge 4b and the left edge 4c of the base casing 4 to support the curtain 5 at the time of expansion. The support pins 7 are provided such that their axes extend in the vehicle longitudinal direction.

  A plurality of fastening flanges 4e that are fastened and fixed to an inner panel (not shown) of the back door 1 are provided outside the side portions 4a, 4b, and 4c, and the base casing 4 is attached to the back door 1 by the fastening flange 4e. It is fastened and fixed firmly. Thereby, the base casing 4 can receive the reaction force at the time of expansion | deployment expansion of the curtain part 5, and the reaction force at the time of tension | tensile_strength generation | occurrence | production of the curtain part 5 reliably.

  The aforementioned curtain portion 5 is made of cloth, and is housed in the base casing 4 in a state of being folded into a small size when housed, and is trapezoidally shaped as shown in FIG. It expands in a substantially trapezoidal shape that widens toward the end so as to cover the entire surface.

Inflated portions 51, 52, 53 extending in the vertical direction are provided on both sides and the center of the curtain portion 5 in the vehicle width direction, and unfolded expanding portions 54 are provided between the expanded portions 51, 52, 53. ing. In addition , a communication inflating portion 55 extending in the vehicle width direction is provided at the upper ends of the inflating portions 51, 52, 53 so that the gas from the inflator 6 is appropriately distributed to the inflating portions 51, 52, 53. It is configured.

Moreover, the curtain part 5 is set so that the lower end 5a may extend below the lower end side 3a of the back window 3 in a deployed and expanded state. Specifically, it is set so as to extend downward by about 5 cm to about 30 cm (D) from the lower end side 3 a of the back window 3. As a result, the lower end portions 51 a, 52 a, 53 a of the expanding portions 51, 52, 53 are also positioned below the lower end side 3 d of the back window 3.

  Further, as shown in FIG. 2, these inflatable portions 51, 52, and 53 are configured to expand in a cylindrical shape in a state where they are expanded and inflated. The columns are formed so as to line up in the vehicle width direction.

  For this reason, the lower end portions 51a, 52a, 53a of the inflating portions 51, 52, 53 are engaged with the lower edge 34 of the back window 3 in the expanded inflated state, and the inflating portions 51, 52, 53 has a tension in the vertical direction, that is, in the unfolding direction.

  Of these, the expansion portions 51 and 52 on both sides are formed at positions adjacent to tension portions P and P described later. As will be described later, the tension portions P and P are supported by the support pins 7 and 7 during deployment and expansion. It is possible to move to the position at an early stage.

  This curtain part 5 is fixed to the upper edge part 4a of the above-described base casing 4 only at the upper part (base part) 56, and the both side parts are not fixed to the right edge part 4b and the left edge part 4c. For this reason, the curtain part 5 is not restrained by the right edge part 4b and the left edge part 4c of the base casing 4 (but excluding the support pins 7 and 7), and is freely spaced apart when deployed.

  In addition, on both sides of the curtain portion 5, cloth-like string members 8, 8 extending in the vertical direction are fixed by stitching.

  Specifically, as shown in FIG. 5, the string-like member 8 is formed of a cloth member having the same rigidity as or slightly higher than that of the cloth member of the curtain part 5, and the center of the side part of the curtain part 5. The upper end portion 8a and the lower end portion 8b are firmly fixed to the vicinity of the tension portion P and the vicinity of the tip portion Q at the lower end of the side portion.

  The length of the string-like member 8 is determined by the length of the expansion part 51 (52) on the side of the curtain part 5 that expands and expands downward. The length is set such that the upper end 8a side is engaged.

  The inflator 6 described above is installed at the upper end of the back door 1 so as to extend in the vehicle width direction. When the gas supply signal is received from the control means described above, the inflator 6 is provided in the expansion portions 51, 52, 53 of the curtain portion 5. In contrast, gas is supplied. The supplied gas is preferably a so-called low-temperature gas filled with a gas whose expansion coefficient does not change in order to maintain the tension of the curtain portion 5 for a long period of time. However, it may be a high-temperature gas generated by igniting a general solid material.

  On the gas ejection side of the inflator 6, a supply pipe 61 that supplies gas into the expansion portions 51, 52, 53 of the curtain portion 5 is provided.

  Note that the airbag sensor and the control means described above are generally known, and thus description thereof is omitted.

  Next, the structure of the support pin 7 and the string-like member 8 of the curtain airbag device 2 of the present embodiment will be described in detail.

Figure 3 (a) and (b) is a graph showing the relationship between the support pin 7 and the cord-like member 8 when stowed and expanded and inflated curtain portion 5, respectively.

  When the curtain portion 5 is stored (A), the string-like member 8 is located on the outer side of the curtain portion 5 (the back window 3 side is the inner side), and the support pin 7 is placed on the lower end portion 8b side. It is located so as to surround the base casing 4 so as to be located in the back. On the other hand, when the curtain portion 5 is expanded and expanded (b), it moves to the lower side of the base casing 4 together with the curtain portion 5 and engages with the support pin 7 on the upper end portion 8a side.

  Thus, the string-like member 8 is configured to engage with the support pin 7 at different positions when the curtain portion 5 is stored and when it is deployed and expanded.

  As will be described later, this occurs when the string-like member 8 is pulled downward by the expansion force of the expansion portion 51 (52) as the tip Q of the curtain portion 5 moves downward. It is.

  The support pin 7 and the string-like member 8 are arranged on the side opposite to the deployment direction of the curtain part 5 with respect to the curtain part 5 bundled so that sliding resistance does not occur during movement (during expansion). 8 is arranged and accommodated, so that the positions thereof are not constrained to each other, and the string-like member 8 is configured to engage with the support pin 7 only when the expansion and expansion are completed.

  As shown in FIG. 4, the width t <b> 1 of the string-like member 8 is set to be smaller than the width t <b> 2 of the base casing 4 so that it can be easily detached from the state of being housed in the base casing 4. The curtain portion 5 is accommodated within the width t2 of the base casing 4.

  Further, the support pin 7 is made of a cylindrical shaft-shaped metal member, and has a both-end support structure in which both ends are penetrated with respect to the base casing 4 in order to increase support rigidity. Also, large-diameter boss portions 71 and 71 are formed at both ends of the support pin 7 so as not to easily fall off due to impact.

  In addition, you may comprise so that the string-shaped member 8 may be supported by the axial part of a volt | bolt using a volt | bolt and a nut instead of this support pin 7. FIG.

  The operation at the time of deployment and expansion of the curtain airbag device 2 of the present embodiment configured as described above will be described with reference to the schematic diagrams of FIGS. FIG. 6 is a schematic diagram showing the operation of the present embodiment, and FIG. 7 is a schematic diagram showing the operation of the conventional structure. In these schematic diagrams, the same components as those described above are denoted by the same reference numerals, and description thereof is omitted.

In the conventional structure, as shown in FIG. 7, when the curtain part 5 is stored (A), the curtain part 5 ' having the lengths (X + Y + Z) of the upper edge, the right edge, and the left edge is opened. It is necessary to store in the periphery, and the length of the free end of the curtain part 5 ′ inevitably increases. Therefore, at the time of expansion (b) of the curtain part 5 ′ , in order to absorb the length (X + Y + Z) of these three sides with the length W of the remaining side, a plurality of large inflating parts 57 (air columns) are provided, The tension of the curtain part 5 'was obtained.

  However, when the inflating part 57 is made large in this way, there is a problem that a large space for expanding and inflating the inflating part 57 is required in the vehicle interior, and a large amount of gas is supplied.

  For this reason, in this embodiment, as shown in FIG. 6, when the curtain portion is stored (A), the curtain portion 5 has the length (X + Y + Z) of the three sides, but the support pins 7, 7 as described above. And the string-like members 8 and 8 are configured to move the support positions (fixed positions) on both sides of the curtain portion 5, so that the leading end portion Q of the side portion of the curtain portion 5 is expanded during the curtain portion expansion (b) , Q expands and expands downward, the tension portions P, P connected by the string members 8, 8 are pulled downward, and the tension portions P, P move to the positions of the support pins 7, 7. It is configured to do.

  As a result, the tension can be obtained at a distance shorter than the length (X + Y + Z) of the three sides, ie, the length V from the right tension portion P to the left tension portion P, between the support pins 7 and W ′. .

  For this reason, in order to obtain the tension | tensile_strength of the curtain part 5, the amount of gas supplied to an expansion part can also be made small without providing a large expansion part.

  Therefore, according to the present embodiment, in the curtain airbag device 2 covering the large back window 3, tension can be generated in the curtain portion 5 without requiring a large inflatable portion or a large amount of gas.

  Further, as in this embodiment, the structure for moving the support position (fixed position) on the side of the curtain unit 5 is configured by the string-like members 8 and 8 and the support pins 7 and 7 so that the curtain can be configured with a simple configuration. The support position (fixed position) of the portion 5 can be changed, and rapid expansion and expansion are possible without causing sliding resistance as in the case of using a guide rail.

  In the present embodiment, the lower end 5a of the curtain portion 5 in the expanded and inflated state is set so as to extend downward beyond the lower end side 3a of the back window 3, and the lower end portions 51a and 52a of the inflating portions 51, 52, and 53 are set. , 53a are configured to engage with the lower edge 34 of the back window 3. For this reason, tension can be obtained even below the tension portions P, P of the curtain portion 5 (on the leading end side in the deployment direction).

  Therefore, the curtain part 5 can raise tension over the curtain part 5 whole region, and can improve a passenger | crew's restraint performance.

In particular, the inflatable portions 51, 52, and 53 by expanding the cylinder, will be the lower end 51a of the expansion portion 51, 52, 53, 52a, the gas supply to the 53a side occurs rapidly, One or expansion In the expanded state, the expansion portions 51, 52, and 53 expand in a columnar shape to the lower edge 34 of the back window 3.

  For this reason, the curtain part 5 can be rapidly expanded and expanded, and the tension of the curtain part 5 can be reliably increased in the vertical direction.

  Further, as shown in FIG. 1, the back window 3 of the present embodiment has a trapezoidal shape with a widening end, and the angle α formed by the upper edge 3a and both side edges 3b, 3c is set to an obtuse angle of about 95 ° on both sides. ing. For this reason, the base casing 4 also has a diverging shape in which the interval between the lower end portions is widened in the same manner, and the support pins 7 are also located on the outer side in the vehicle width direction. Therefore, the length between the tension portions P and P that generate the tension is longer than the length of the upper edge 3a, and the curtain portion 5 can easily generate the tension.

Moreover, in this embodiment, since the string-like members 8 and 8 are installed in the back position of the base casing 4 on the outer side of the curtain part 5, the string-like member 8 when the curtain part 5 is expanded and expanded. There without inhibiting can be carried out quickly or one reliable deployment and inflation to the curtain portion 5.

  Furthermore, the string-like member 8 has a belt shape and is set so as to slide in the gap between the support pin 7 and the base casing 4. Since it is pulled out, the direction of expansion and expansion of the curtain portion 5 can be defined, and a stable expansion and expansion state can be obtained.

  In addition, in this embodiment, as shown in FIG. 2, the height position of the support pin 7 is set below the height position of the center of the head H at the seating position of the occupant, so that the support pin is expanded and expanded. The tension line T formed between 7 and 7 is set to be positioned below the center of the head H. For this reason, at the time of a collision, etc., the movement of the passenger's head H in the vehicle outward direction can be reliably restrained, and the safety of the passenger can be improved.

  And in this embodiment, since the expansion parts 51 and 52 of both sides are provided in the curtain part 5 side part adjacent to the tension | tensile_strength parts P and P, the expansion force of the expansion | swelling parts 51 and 52 is immediately tension part P, Is transmitted to P. For this reason, the movement of the tension portions P, P in the unfolding direction (downward direction) is accelerated, and the tension portions P, P can be moved to the vicinity of the support pins 7, 7 earlier, and the curtain portion 5 is surely obtained. Can be expanded and inflated.

  Further, in the present embodiment, the rear seat 9 is a three-seater, and it is necessary to protect three persons at the time of a collision or the like, but since the inflating portion 53 is also provided at the center of the curtain portion 5 in the vehicle width direction. The impact acting on the occupant's head H can be absorbed together with the inflatable portions 51 and 52 on both sides.

  Further, these inflating portions 51, 52, 53 are formed so as to extend in the vertical direction across the tension line T described above. For this reason, when the expansion parts 51, 52, and 53 expand, the apparent length of the tension line T can be shortened, and the tension can be reliably applied, and the tension in the tension line T can be further increased.

  In addition, in FIG. 8, the operation | movement schematic diagram at the time of providing the support pin 7 and the string-like member 8 only in one side (left side in drawing) is shown. As shown in this schematic diagram, it is possible to cover a substantially triangular window by providing the support pin 7 and the string-like member 8 only on one side.

  Even in this case, when the curtain part is stored (A), the curtain part 5 has the two side lengths (X + Y), but the support pin 7 and the string-like member 8 support the one side of the curtain part 5. Since the (fixed position) is configured to move, when the curtain part is expanded and expanded (b), it is connected by the string-like member 8 as the tip Q on one side of the curtain part 5 expands and expands downward. The tension portion P thus pulled is pulled downward, and the tension portion P moves to the position of the support pin 7.

  Thereby, also in this case, the length V from the tension portion P to the one end portion R between the support pin 7 and the other end portion R is shorter than the length (X + Y) of the two sides. You can get tension at a distance.

  Therefore, even when the triangular window is covered, tension can be generated in the curtain portion 5 without requiring a large expansion portion or a large amount of gas.

In the first embodiment, the lower end portion of the curtain portion 5 is configured to be located below the lower edge of the back window 3, but as shown in FIG. When the lower side of the curtain part 5 is located close, the lower edge of the back window 3 may be configured to expand below the upper end of the seat back as viewed from the rear of the vehicle (that is, the window part). Is considered to be formed by the upper edge, the right and left edges of the back window 3 and the upper end of the seat back).
( Second Embodiment)
Next, FIG. 9 demonstrates the 2nd Embodiment of the curtain airbag apparatus of this invention. In the second embodiment, the structure for moving the support position (fixed position) on the side of the curtain part is changed to another structure, and FIG. 9 corresponds to FIG.

  The curtain airbag device 302 is formed with an ear 358 having a predetermined width at the side end of the curtain portion 305 instead of the string-like member so as to extend in the vertical direction, and a long hole 359 extending in the vertical direction on the ear 358. (Guide hole) is formed.

For this long hole 359, changing the first embodiment similarly to the support pin 7 is engaged, the engagement position of the supporting pin 7 in the vertical direction when storing the curtain portion 30 5 and at the time of deployment and inflation By (moving), it is possible to generate a tension between the support pins 7 as in the above-described embodiment.

  For this reason, also in this embodiment, the amount of gas can be reduced without increasing the inflating portion, as in the above-described embodiment.

  In particular, in the case of this embodiment, a structure in which the support position (fixed position) of the curtain part 305 is moved by the ear part 358 integrated with the curtain part 305 is achieved. There is no need to provide a separate member, and productivity and cost can be improved.

Other functions and effects are the same as those of the first embodiment.
( Third embodiment)
Next, a third embodiment of the curtain airbag device of the present invention will be described with reference to FIG. This 3rd Embodiment is the curtain airbag apparatus 402 installed in the periphery of the side window 410 of a vehicle side part.

In the vehicle in which the curtain airbag device 402 is installed, a front seat S1, a first rear seat S2, and a second rear seat S3 are installed in order from the vehicle front side in the vehicle interior, and a front window 411 and a rear side are installed on the sides. A window 412 and a quarter window 413 are installed. Then, the like between the window front A-pillar 421, B-pillar 422, C-pillar 423 and D-pillar 424 is installed from the above each window 411, a roof side panel 425 is installed ing.

Base casing 404 of the curtain airbag apparatus 402, A-pillar 421 so as to surround these multiple windows 411 are installed in substantially gate shape to the roof side panel 425 and D-pillar 424.

The base casing 404 houses the folded curtain portion 405 in the same manner as in the first embodiment. The curtain portion 405 receives gas from the inflator 406 installed on the D pillar 424 and expands and expands. It is configured.

  FIG. 10 shows the expanded state of the curtain portion 405.

As in the first embodiment, string-like members 8 and 8 are provided on the side portions (the vehicle front side portion and the rear side portion) of the curtain portion 405 of the present embodiment. Is provided with support pins 7 and 7 so that the string-like members 8 and 8 are engaged with the support pins 7 and 7.

  The string-like members 8 and 8 are connected at their upper end portions to tension portions P and P located at the intermediate portion of the curtain portion 405 and are connected at their lower end portions to tip portions Q and Q located near the support pins 7 and 7. (The positions indicated by (P) and (Q) in the drawing are positions in the storage state).

  Then, the cord-like members 8 and 8 move the tension portions P and P to the positions of the support pins 7 and 7 by the downward movement of the tip portions Q and Q during the expansion and expansion, and the support pins 7 and 7 are engaged. Combine.

In such a configuration, when the pillar portion of the vehicle (B-pillar 422, C-pillar 423) airbag sensor provided (not shown) detects an impact from the side of the vehicle, it is also properly consists roll angle sensor When an airbag sensor (not shown) detects (predicts) a vehicle rollover, the curtain unit 405 is deployed and inflated by a control unit (not shown).

As a result, as in the first embodiment, a tension line T for generating tension is formed between the support pins 7 and 7.

  In particular, in the present embodiment, since a plurality of windows 411, 412, 413 are covered with one curtain portion 405, tension generation, which is difficult in a structure in which the fixed position of the curtain portion is not moved, is extended to the positions of the support pins 7, 7. This can be done easily by moving the tension part P.

  Further, the curtain portion 405 includes side inflating portions 451 and 452 that expand and inflate the lower side portion of the side of the curtain portion 405 downward, and a central inflating portion that inflates in accordance with the position of each occupant's head. 453 and 454, and a communication inflating portion 455 that communicates these inflating portions at the top, and a deployment portion 456 is provided between these inflating portions.

This curtain portion 405 is set so as to extend downward beyond the belt line L at the lower end side of the windows 411, 412, and 413, as in the first embodiment. Specifically, it is set to extend downward from the belt line L by about 5 cm to about 30 cm (D). Accordingly, the lower end portions 451a, 452a, 453a, and 454a of the expanding portions 451, 452, 453, and 454 are also positioned below the belt line L.

  Therefore, the lower end portions 451a, 452a, 453a, 454a of the inflating portions 451, 452, 453, 454 are engaged with the lower edges of the windows 411, 412, 413 in the unfolded inflated state, and the inflating portions 451, 452 , 453 and 454 have tension in the vertical direction, that is, in the unfolding direction.

Further, the side expansion portions 451 and 452 are formed at positions adjacent to the tension portions P and P, and the tension portions P and P are attached to the support pins 7 and 7 at the time of deployment and expansion as in the first embodiment. It can be moved early to the position.

  Further, as shown in FIG. 10, the central inflating portions 453 and 454 have a front central inflating portion 453 at the lower edge of the B pillar 422, the front window 411, and the lower edge of the rear window 412 as shown in FIG. 10. A central expansion portion 454 on the rear side is formed at a position where the C pillar 423, the lower edge portion of the rear window 412 and the lower edge portion of the quarter window 413 overlap with each other.

As described above, in this embodiment, the expanding portions 451, 452, 453, and 454 extend below the belt line L, and the lower end portions 451 a, 452 a, 453 a, and 454 a are engaged with the lower edges of the windows 411, 412, and 413. together they constitute a, and configured to engage a central inflatable portion 453, 454 to the B-pillar 422 and C-pillar 423. Therefore, even in the large curtain portion 405 that covers the side window 410, higher tension can be obtained over the entire curtain portion 405.

  Further, as shown in FIG. 10, the central inflating portions 453 and 454 and the side inflating portion 452 located on the vehicle rear side are provided at positions corresponding to the head H of the occupant. The impact absorbing performance of the portion H can also be enhanced.

  Further, a tension line T connecting the support pins 7 is also formed below the head H of the occupant. For this reason, the movement of the occupant's head H in the vehicle exterior direction can also be suppressed, and the occupant's restraining performance can be enhanced.

In addition, about another effect, it is the same as that of the above-mentioned embodiment.
( Fourth embodiment)
Next, a fourth embodiment of the curtain airbag device of the present invention will be described with reference to FIGS. This 4th Embodiment is the curtain airbag apparatus 502 installed in the periphery of the glass roof window 501 of the vehicle upper part. FIG. 11 is a plan view of a vehicle on which the curtain airbag device 502 is installed, and FIG. 12 is a cross-sectional view taken along line BB in FIG.

The curtain airbag device 502, when the vehicle rollover detection or was foreseen by the air bag sensor (not shown) covers the glass roof window 501 by actuating the curtain portion, the movement in the outside direction of the occupant such as It is to suppress.

  The glass roof window 501 is installed at the center position of the roof 503 of the vehicle, specifically, above the front seat occupant H1 and the first rear seat occupant H2. Is visible. Note that. FIG. 11 shows a state where the curtain portion is expanded and expanded.

The curtain air bag device 502, an inflator 506, 506, curtain portion 505, 505, and the base casing 504 and 504, which respectively disposed two by two, glass the two curtain portions 505 and 505 The glass roof window 501 is covered by expanding and inflating the roof window 501 inward.

  One inflator 506, 506 is installed on the vehicle front side of the glass roof window 501, and the other is installed on the vehicle rear side. In addition, one of the base casings 504 and 504 is installed across the front edge 501a and the left edge 501b of the glass roof window 501, and the other is installed on the rear edge 501c and the right edge 501d of the glass roof window 501. It is installed across.

  The base casings 504 and 504 accommodate curtain portions 505 and 505 that are substantially triangular when expanded.

The curtain unit 505, on both sides and the center, the expansion portion 551, 552, 553 for expanding the gas supplied from the inflator 50 6 provided is provided in a development part 554 therebetween. Moreover, the string-like members 8 and 8 are provided in the both ends.

  The string-like members 8 and 8 are configured to engage with the support pins 7 and 7 formed at both ends of the base casing 504, respectively, as in the above-described embodiment, and the curtain portion 505 is expanded and expanded. In some cases, the tension portions P and P of the curtain portion 505 are moved to the positions of the support pins 7 and 7 and engaged with the support pins 7 and 7.

  Further, the curtain portion 505 is configured such that the two curtain portions 505 are superposed at the center of the glass roof window 501 in the deployed and expanded state.

  For this reason, as shown in FIG. 11, the leading end sides 552a and 552a of the expansion portions 552 and 552 of the curtain portions 505 and 505 are configured to be thin (thickness U1), and the two curtain portions 505 and 505 interfere as much as possible during expansion and expansion. I try not to.

  However, since it is necessary to improve the shock absorbing performance of the occupant's head H, the portion corresponding to the occupant's head H is configured to have a certain thickness (thickness U2).

  Moreover, in order to avoid the interference at the time of expansion and expansion, the curtain portion 505 located on the upper side is configured to expand and expand in advance.

  By adopting such a configuration, even when the two curtain portions 505 and 505 are deployed and inflated from opposite directions, it is possible to prevent the interference between the two curtain portions 505 and 505 and to ensure appropriate occupant protection performance.

  Thus, also in this embodiment, by providing the string-like members 8 and 8 and the support pins 7 and 7, the support position (fixed position) of the curtain portions 505 and 505 is moved, and tension is easily generated. I am doing so.

  Therefore, also in the curtain airbag device 502 installed on the periphery of the glass roof window 501, it is possible to reliably generate tension at the time of deployment and expansion, and to improve the occupant protection performance.

  In this embodiment as well, the front end portions 551a and 553a in the side expansion portions of the curtain portions 505 and 505 extend to the opposite edge portions 501a, 501b, 501c, and 501d of the glass roof window 501 in the deployed and expanded state. Is set to For this reason, it is possible to obtain a tension on the front side in the deployment direction from the tension line L.

Further, other functions and effects are the same as those in the above-described embodiment.
( Fifth embodiment)
Next, a fifth embodiment of the curtain airbag device 602 of the present invention will be described with reference to FIG. This fifth embodiment is also a curtain airbag device 602 installed on the periphery of the glass roof window 501 at the top of the vehicle.

The curtain air bag device 602, unlike the fourth embodiment described above, the inflator 606, the curtain portion 605 and base housing 604, configured with a respective one, a glass roof window 501, all one curtain portion It is configured to cover with 605.

  Specifically, a base casing 604 is installed in a substantially U shape on the front edge 501a, left edge 501b, and left edge 501c of the peripheral edge of the glass roof window 501, and is folded inside the base casing 604. An inflator 606 that houses the curtain portion 605 in a state and supplies gas to the curtain portion 605 is installed on the vehicle front side of the base casing 604.

  FIG. 13A shows a state in which the curtain portion 605 is expanded and expanded.

The string members 8 and 8 are provided on both side ends of the curtain portion 605 as in the above-described embodiment, and the support pins 7 and 7 are provided on both ends of the base casing 604 in the same manner as in the above-described embodiment. Further, the support position (fixed position) of the curtain portion 605 is moved to the vehicle rear side due to the expansion of the expansion portions 651 and 652, as in the above-described embodiment. Further, in this embodiment, the vehicle front side than the point P in FIG. 1 3 (b), the curtain portion 605 is fixed to the casing 604. FIG.

  In this embodiment, the shape of the curtain portion 605 is configured to be different from the curtain portion of the above-described embodiment.

  That is, as shown in FIG. 13 (a), only the expansion portions 651 and 652 on the side of the curtain portion 605 located in the vicinity of the string-like members 8 and 8 are greatly extended to the rear, and are expanded with the other central expansion portions 653. About the part 654, it forms as the curtain part 605 set to the extent which covers the glass roof window 501 in the expansion | deployment expansion state.

  By configuring in this way, the side expansion portions 651 and 652 can be used not only as a promotion means for moving the fixing position (supporting position) of the curtain portion 605, but also the expansion portions 651 and 652 can be used. It is also possible to use the rear side as an impact absorbing member. Further, the size of the curtain portion 605 can be made compact, and the effect that the storage property can be further improved can be obtained.

  Therefore, in the present embodiment, as in the above-described embodiment, in addition to the effect that tension can be generated even if the inflating portion is made small and the amount of gas is reduced, the inflating portions 651 and 652 are more reliably generated. The curtain portion 605 can be moved at a fixed position, and the storage space can be made compact.

  Further, as in this embodiment, the side expansion portions 651 and 652 are enlarged, and the front end portions 651a and 652a are protruded toward the vehicle rear side of the glass roof window 501, so that the curtain portion is the same as in the other embodiments. The tension on the front side in the deployment direction (vehicle rear side) than the tension line L of 605 can be obtained.

Other functions and effects are the same as those in the above-described embodiment.
( Sixth embodiment)
Next, a sixth embodiment of the curtain airbag device 2 of the present invention shown in FIG. This sixth embodiment is also a curtain airbag device 702 installed on the periphery of the glass roof window 501 at the top of the vehicle.

As in the fifth embodiment, the curtain airbag device 702 includes an inflator 706, a curtain portion 705, and a base casing 704, and covers the glass roof window 501 at the top of the vehicle with the single curtain portion 705. It is comprised as follows.

  However, this curtain airbag device 702 is provided with the string-like member 8 on one side of the curtain portion 705, and the support pin 7 is installed only at one end portion of the base casing 704. It consists of a bag device.

As described above, since only one side portion of the curtain portion 705 is moved by the expansion and expansion of the expansion portion 751, expansion that only moves one side portion as compared with the fourth and fifth embodiments. Since the force is sufficient, the curtain portion 705 can be deployed and expanded without increasing the size of the expansion portion 751.

  Therefore, the gas amount of the inflator 706 can be reduced, and the curtain portion 705 can be configured compactly.

  Therefore, according to this embodiment, the tension of the curtain portion 705 can be improved with a relatively inexpensive configuration.

  Further, as in the present embodiment, the front end portion 751a of the expansion portion 751 expands and expands to the periphery of the glass roof window 501, and as in the other embodiments, the front side in the expansion direction with respect to the tension line L of the curtain portion 705. Tension (vehicle rear side) can be obtained.

  In addition, about another effect, it is the same as that of the above-mentioned embodiment.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiment,
The window of the present invention corresponds to the back window 3, the front window 411, the rear window 412, the quarter window 413, and the glass roof window 501 of the embodiment.
Hereinafter, similarly, the gas supply means corresponds to the inflators 6,406, 506, 606, 706,
The tip side corresponds to the tip Q,
The support portion corresponds to the support pin 7,
The leading end of the inflating part corresponds to the lower end 51a, 52a, 53a, 451a, 452a, 453a, 454a, the front end 551a, 553a, 651a, 652a, 751a,
The present invention is not limited to the above-described embodiments, but includes embodiments applied to all curtain airbag devices.

For example, other than vehicles, buildings, aircraft, trains, ships, may be a curtain airbag device used in spacecraft and space stations, etc., As for the shape of the wind, triangular, square and pentagonal, further May be circular with curvature.

  Furthermore, you may comprise so that the tension | tensile_strength part of a curtain part may be supported using a support hook, a support hole, etc. instead of a support pin. Further, the axial direction of the support pin may be not only a direction orthogonal to the direction of expansion and expansion of the curtain portion but also may be parallel or inclined.

  Moreover, the shape of the string-like member may be a rope shape, a belt shape, or the like, and is not particularly limited.

The rear view of the vehicle which showed the curtain airbag apparatus of the accommodation state of this invention. The rear view of the vehicle which showed the curtain airbag apparatus of the expansion | deployment state. (A) The principal part detailed drawing of the support pin in a stowed state, (B) The principal part detailed drawing of the support pin in a deployment expansion state. FIG. 4 is a cross-sectional view taken along line AA in FIG. The principal part perspective view which showed the curtain part side part. The schematic diagram which showed the action | operation of this embodiment, (i) The accommodation state (b) The expansion | deployment expansion state. The schematic diagram which showed the operation | movement of the conventional structure, (A) The accommodation state (B) The expansion | deployment expansion state. The operation schematic diagram when a support pin and a string-like member are provided only on one side, (a) stored state (b) deployed and expanded state. The principal part perspective view which showed the 2nd Embodiment curtain part side part. The side view of the vehicle which showed 3rd Embodiment. The top view of the vehicle which showed 4th Embodiment. FIG. 12 is a cross-sectional view taken along line BB in FIG. 11. (A) The top view which showed 5th Embodiment, (B) The top view which showed 6th Embodiment.

P: Tension part Q: Tip part (tip side part)
T ... Tension line 3 ... Back window (wind)
5, 105, 205, 305, 405, 505, 605, 705 ... Curtain part 6,406, 506, 606, 706 ... Inflator (gas supply means)
7 ... Support pin (support part)
8 ... string-like member (connection member)
51, 52, 53, 451, 452, 453, 454, 551, 552, 553, 651, 652, 653, 751... Tip)
551a, 553a, 651a, 652a, 751a ... front end portion (tip portion of the expansion portion)
358 .. ear part (connection member)
411 ... Front window (wind)
412 ... Rear window (wind)
413 ... Quarter window (wind)
501 ... Glass roof window (wind)

Claims (6)

A curtain portion that is housed in the first side and the second side of the peripheral portion of the window portion in the stowed state and expands and expands so as to cover the window portion in the unfolded and expanded state;
In a curtain airbag device comprising gas supply means for supplying gas to an inflated part formed in the curtain part so that the curtain part is deployed and inflated in a predetermined state,
The second side is provided with a support portion corresponding to the side portion when the curtain portion is expanded and expanded,
The curtain portion is provided with a connection member that connects the vicinity of the tension portion positioned in the vicinity of the support portion at the time of deployment and expansion and the vicinity of the tip side portion at the time of deployment and expansion and can be engaged with the support portion.
The curtain portion is in a stored state, and a distal end side portion located on the distal end side in the deployment direction during deployment and expansion is located in the vicinity of the support portion,
The tension part is stored so as to be close to the first side,
Upon expansion and inflation, by the force of expansion of the expanding portion, with the distal end portion is moved in the deployment direction, with the tension portion is moved to the vicinity of the supporting portion, the connecting member is engaged with the supporting portion,
A curtain airbag device configured such that a distal end portion of the inflating portion is deployed and inflated beyond a side facing the first side or the second side of the window portion. Curtain that is housed in the first side located at the center and the second and third sides located on both sides of the peripheral edge of the window portion in the stowed state, and expands and inflates to cover the window portion in the unfolded and expanded state And
In a curtain airbag device comprising gas supply means for supplying gas to an inflated part formed in the curtain part so that the curtain part is deployed and inflated in a predetermined state,
The second side is provided with a second side support portion corresponding to one side portion when the curtain portion is expanded and expanded,
The third side is provided with a third side support portion corresponding to the other side portion when the curtain portion is expanded and expanded,
The curtain portion is connected to the vicinity of the second side tension portion located in the vicinity of the second side support portion at the time of expansion and expansion and the vicinity of the second side side tip side portion at the time of expansion and expansion to support the second side. And providing a connecting member engageable with the portion,
In the vicinity of the third side tension part located in the vicinity of the third side support part during expansion and expansion and
Connecting the third side side tip side vicinity, providing a connecting member that can be engaged with the third side support part,
The curtain portion is in a stored state, and a second side tip end portion located on the tip end side in the deployment direction on the second side during deployment and expansion is located in the vicinity of the second side support portion,
The third side tip portion located on the tip side in the deployment direction on the third side during deployment and expansion is located in the vicinity of the third side support portion, and the second side tension portion and the third side tension portion. But,
It is stored so as to be close to the first side,
At the time of expansion, the second side side tip side and the third side side tip side move in the respective deployment directions by the expanding force of the expansion part, and the second side side tension part and the first side with three sides side tension portion moves respectively to the second side support portion near the third side supporting portion near the respective connecting member engages each of the third side support portion and the second side support portion,
A curtain airbag device configured such that a distal end portion of the inflating portion is deployed and inflated beyond a side facing the first side, the second side, or the third side of the window portion. The angle of each side, according to claim 1 or curtain air bag apparatus according 2 is set to an obtuse angle. The said expansion | swelling part is comprised so that it may become a substantially column shape from the at least any one side of the said 1st edge | side, a 2nd edge | side, and a 3rd edge to the front-end | tip part beyond the said edge | side which opposes at the time of expansion | deployment expansion | swelling. The curtain airbag device according to any one of the above. The curtain airbag device according to claim 4, wherein the inflatable portion is formed in a substantially columnar shape adjacent to at least one side of the second side and the third side. The window portion is a side window provided on the side of the vehicle,
The predetermined state is a vehicle collision, a collision prediction, or a rollover determination,
The inflated portion is set to extend from the first side above the vehicle to the belt line at the lower end side of the side window in a deployed and inflated state, and overlaps with a pillar extending vertically between the window portions in a side view of the vehicle. The curtain airbag device according to any one of claims 1 to 5 , wherein the curtain airbag device is formed in a substantially columnar shape at a position to be operated.

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