JP3135521B2 - Vehicle occupant protection device and method of assembling the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for injecting gas from an inflator when a predetermined high load is applied to a side of a vehicle body, and the gas is blown along a pillar portion and a roof side rail portion into a vehicle interior side of the vehicle body. The present invention relates to a vehicle occupant protection device for expanding a bag into a curtain shape and a method for assembling the same.

[0002]

2. Description of the Related Art In order to improve the protection performance of an occupant's head when a predetermined high load is applied to a side of a vehicle body, a bag stored in a folded state over a front pillar portion and a roof side rail portion is provided. An occupant protection device that expands in a curtain shape along a window glass has already been proposed.
Hereinafter, WO 96/2 which discloses this type of occupant protection device is disclosed.
The configuration disclosed in Japanese Patent No. 6087 will be described.

As shown in FIG. 5, an occupant protection device 100 includes an elongated duct 10 which extends from a front pillar portion 102 to a roof side rail portion 104.
6, a bag 112 stored in a folded state along the roof side rail portion 104 from the front pillar portion 102 and fixed to the vehicle body side at a front end fixing point 108 and a rear end fixing point 110, and a hose 114. Duct 10
6 and an inflator 116 which is connected to the rear end and which blows out gas when a predetermined high load is applied to the side of the vehicle body, and one end of which is fixed to the vehicle body and the other end of which is connected to the rear end of the bag 112. And a fixed band-shaped strap 118 as a main component. Further, the above-described bag 112 is configured by connecting a plurality of cells 120 each formed in a substantially cylindrical shape and arranged with the longitudinal direction substantially in the vehicle vertical direction.

According to the above configuration, when a predetermined high load is applied to the side of the vehicle body, gas is ejected from the inflator 116. Therefore, the ejected gas is supplied to the hose 114.
And the folded bag 112 via the duct 106
Into each of the cells 120. As a result, each cell 12
0 inflates in a substantially cylindrical shape with the longitudinal direction substantially in the vehicle vertical direction, whereby the bag 112 is inflated in a curtain shape along the window glass 122. In addition, the bag 112
Is connected to the vehicle body via a strap 118, so that a predetermined tension is applied to a line connecting the front end fixing point 108 and the rear end fixing point of the strap 118, and the rear end of the bag 112 The side is securely arranged inside the upper part of the center pillar portion 124.

[0005]

However, the above-described occupant protection device 100 is an integral long object which is provided so as to extend from the front pillar portion 102 to the roof side rail portion 104. Since it is necessary to transport the apparatus 100 from the production factory to the vehicle assembly factory as it is, there is a problem that transportability is reduced. Furthermore, when the occupant protection device 100 is assembled to a body at a vehicle assembly factory, the occupant protection device 100 is attached to the body as a long object, so that it is difficult to perform the assembly work by one person, and the assemblability is reduced. There are also problems.

SUMMARY OF THE INVENTION In view of the above facts, the present invention provides a vehicle occupant protection device and a method for assembling the same, which can improve transportability from a production factory to a vehicle assembly factory and assemblability at the vehicle assembly factory. Is the purpose.

[0007]

According to a first aspect of the present invention, there is provided an inflator which is disposed at a predetermined portion of a vehicle body and which injects gas when a predetermined high load is applied to a side portion of the vehicle body; It is folded and attached via a plurality of bag attachment portions along the pillar portion and the roof side rail portion, and is swelled in a curtain shape toward the vehicle interior side of the vehicle body side by flowing gas ejected from the inflator. And a bag, comprising: a case mounting portion at a position corresponding to the bag mounting portion.
A first main body including a plurality of case mounting portions for mounting a long case having the elongate case to a roof side rail portion, and a second main body extending continuously to the pillar portion side from the first main body. And by dividing the first main body into the second main body
In a state formed continuously and folded in a long shape
Bags stored in the first main body and the second main body
Are bendable at the divided part .

According to a second aspect of the present invention, there is provided an occupant protection system for an automobile according to the first aspect of the present invention, wherein the occupant when a predetermined load is applied to the vehicle body side along the pillar and the roof side rail. When an energy absorbing member for absorbing a secondary collision load on the head is provided, the energy absorbing member is also divided at substantially the same position together with the case.

According to a third aspect of the present invention, in the vehicle occupant protection device according to the first or second aspect of the present invention, when the energy absorbing member is provided, the energy absorbing member, the case, When the three members of the bag are temporarily fixed in advance by the temporary fixing means and the energy absorbing member is not provided, the two members of the case and the bag are temporarily fixed in advance by the temporary fixing means.

According to a fourth aspect of the present invention, there is provided an automobile occupant protection device which is disposed at a predetermined portion of a vehicle body and which injects gas when a predetermined high load is applied to a side portion of the vehicle body; It is folded and attached via a plurality of bag attachment portions along the pillar portion and the roof side rail portion, and is swelled in a curtain shape toward the vehicle interior side of the vehicle body side by flowing gas ejected from the inflator. A vehicle occupant protection device including a bag, wherein a portion positioned between a bag attachment portion adjacent to a pillar portion and a roof side rail portion in a long folded bag is a wrap member. By wrapping, the first body portion including a plurality of bag attachment portions for attachment to the roof side rail portion, and extending to the pillar portion side continuously with the first body portion. A second body portion which is, with a, is characterized in that.

According to a fifth aspect of the present invention, in the vehicle occupant protection device according to any one of the first to fourth aspects, an inflator is provided on at least one of a front end and a rear end of the bag. It is characterized by being attached in advance.

According to a sixth aspect of the present invention, in the vehicle occupant protection device according to the first aspect, the first main body and the second main body are bent.
The two are temporarily fixed by removable temporary fixing means.

The method for assembling an occupant protection system for a vehicle according to the present invention according to claim 7 is applied to a case where the occupant protection device for an automobile according to claim 6 is assembled along a pillar portion and a roof side rail portion. First, the first main body portion is fixed to the roof side rail portion in a state where the first main body portion is temporarily fixed by the temporary fixing portion, and then the second main body portion is moved along the pillar portion after removing the temporary fixing portion, The second body is fixed to the pillar.

According to the first aspect of the present invention, when a predetermined high load acts on the side of the vehicle body, gas is blown from an inflator disposed at a predetermined portion of the vehicle body. For this reason, the gas is folded into a long shape and flows into the bag attached via the plurality of bag attaching portions along the pillar portion and the roof side rail portion. As a result, the bag is bulged in a curtain shape along the pillar portion and the roof side rail portion toward the vehicle interior side of the vehicle body.

Here, in the present invention, there is provided an elongated case having a case mounting portion at a position corresponding to the bag mounting portion, and the case is provided with a plurality of case mounting portions for mounting to the roof side rail portion. Is divided into a first main body portion including the first main body portion and a second main body portion extending to the pillar portion side continuously from the first main body portion, so that the first main body portion extends from the first main body portion to the second main body portion.
The first one is formed continuously and folded in a long shape
The bag accommodated in the body and the second body is divided into
Since it is foldable at the parts, when attaching the vehicle occupant protection device to the pillar part and the roof side rail part, as described above, the bag is folded at the divided part of the first main body part and the second main body part. It becomes possible.
That is, in a state before assembly, the longitudinal dimension of the vehicle occupant protection device can be reduced. For this reason,
It becomes easier to transport the vehicle occupant protection device when transporting it from a production factory to a vehicle assembly factory. When assembling the vehicle occupant protection device through the door opening, the first main body is first assembled to the roof side rail with a plurality of attachment portions, and then the second main body is arranged along the pillar. Since it can be assembled to the pillar part, it is not necessary to attach it to the body as a long object, and the assembly work can be performed alone.

According to the second aspect of the present invention, energy absorption for absorbing a secondary collision load of the occupant's head when a predetermined load is applied to the vehicle body side along the pillar portion and the roof side rail portion. When the member is provided, the energy absorbing member is also divided at substantially the same position together with the case. Therefore, even when the energy absorbing member is provided in this manner, the same operation as the invention according to claim 1 is performed. Is obtained.

According to the third aspect of the present invention, when the energy absorbing member is provided, the energy absorbing member, the case, and the bag are temporarily fixed in advance by temporary fixing means, and the energy absorbing member is fixed. When not provided, the case and the bag are temporarily fixed by the temporary fixing means in advance, so that in any case, the vehicle occupant protection device can be subassembled before assembly.

According to the present invention, when a predetermined high load is applied to the side of the vehicle body, gas is blown from an inflator disposed at a predetermined portion of the vehicle body. For this reason, the gas is folded into a long shape and flows into the bag attached via the plurality of bag attaching portions along the pillar portion and the roof side rail portion. As a result, the bag is bulged in a curtain shape along the pillar portion and the roof side rail portion toward the vehicle interior side of the vehicle body. This is the same as the first aspect of the present invention.

Here, according to the present invention, the roof side rail is formed by wrapping a portion between the pillar portion and the bag attaching portion adjacent to the roof side rail portion in the long folded bag with a wrap member. A first body portion including a plurality of bag attachment portions for attachment to the portion, and a second body portion extending to the pillar portion side continuously to the first body portion, so that the pillar portion and When attaching the vehicle occupant protection device to the roof side rail portion, the first main body portion and the second main body portion can be bent at the non-lap portion. That is, in the state before assembly,
The longitudinal dimension of the vehicle occupant protection device can be reduced. When assembling the vehicle occupant protection device through the door opening, the first main body is first assembled to the roof side rail with a plurality of attachment portions, and then the second main body is arranged along the pillar. Can be assembled to the pillar part.
There is no need to attach to the body as a long object, and only one person can perform the assembling work.

According to the fifth aspect of the present invention, since the inflator is previously attached to at least one of the front end and the rear end of the bag, the inflator can be assembled simultaneously with the assembly of the bag or the like. .

According to the present invention, since the first main body and the second main body are bent and temporarily fixed by the removable temporary fixing means, the pillar portion of the vehicle occupant protection device is provided. If it becomes necessary to assemble the vehicle occupant to the roof side rail portion, the vehicle occupant protection device can be made an original long object simply by removing the temporary fixing means.

According to the seventh aspect of the present invention, first,
The first main body portion of the vehicle occupant protection device is fixed to the roof side rail portion while being temporarily fixed by the temporary fixing means. Since the vehicle occupant protection device is temporarily fixed by the temporary fixing means in a state where the first main body and the second main body are bent , the operator holds the first main body with one hand and holds the first main body with the first main body. The first part can be fixed to the roof side rail part by holding the tool with the other hand while positioning the part on the roof side rail part.

Next, after the first main body is fixed to the roof side rail, the temporary fixing means is removed. And
The second main body is arranged along the pillar, and the second main body is fixed to the pillar. Thereby, the worker can easily assemble the vehicle occupant protection device alone along the pillar portion and the roof side rail portion.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION

[First Embodiment] The first embodiment will be described below with reference to FIGS.

FIG. 1 shows a state before the vehicle occupant protection device 10 according to the present embodiment is assembled to the vehicle body side portion 40, and FIG. 2 is a view along line 2-2 in FIG. FIG. 3 is an enlarged cross-sectional view. FIG.
The state after the operation of 0 is schematically shown in a side view.

As shown in these figures, the vehicle occupant protection device 10 includes a sensor 12 for detecting a predetermined high load acting state on the vehicle body side portion 40, and a gas jetting when activated. A cylindrical inflator 14, a bag 16 folded in a predetermined folding manner, a case 18 for accommodating the folded bag 16, a resin energy absorbing member 20 disposed adjacent to the case 18, Is a main component. Less than,
The configuration of each unit will be described in this order.

The sensor 12 is disposed near the lower end of the center pillar portion (B pillar portion) 22 and detects when a predetermined high load is applied to the vehicle body side portion 40 to detect the high load operation state. It has become. Note that an acceleration sensor or the like can be applied as the sensor 12, and the disposition portion is not necessarily near the lower end of the center pillar portion 22, but may be inside a side door or the like. The sensor 12 is connected to a center control unit (not shown) disposed below the console box.

The inflator 14 is disposed near a connection between a front pillar portion (A pillar portion) 24 and an instrument panel 26. The specific configuration of the inflator 14 includes a gas generating agent enclosing type in which a gas is injected by burning a gas generating agent sealed in the inside, and a high-pressure gas is jetted by breaking a partition provided in the inside. A high-pressure gas filling type or the like is applicable. The ignition device provided in the inflator 14 is connected to the above-described center control unit, and the inflator 14 operates when a predetermined operating current is supplied to the ignition device from the center control unit. ing.

The bag 16 is formed so that its inflated shape in a side view is substantially a parallelogram, and its front end is connected (fixed) to the inflator 14 so that gas ejected from the inflator 14 flows in. ) Has been. In addition, a plurality of non-inflated portions 28 formed by sewing or bonding are provided at predetermined intervals in a vertical intermediate portion of the bag 16. These non-inflated portions 28 are arranged across the tension line T connecting the front end fixed point and the rear end fixed point of the bag 16 and the longitudinal direction is the bag vertical direction. Further, the non-inflated portion 3 formed by suturing or bonding and having a substantially triangular shape in a side view is also provided on the rear end side of the bag 16.
0 is formed. Also, on the upper edge side of the bag 16,
Rectangular bag mounting portions 16A (see FIG. 2) are formed at predetermined intervals along the longitudinal direction. Further, the bag 16 having the above-described configuration is folded in a long shape by being bellow-folded in the vertical direction.

The case 18 accommodates the folded bag 16 which is made of resin and formed in a long shape. A fragile portion 32 (see FIG. 2) that breaks at a predetermined bag inflation pressure is formed at a corner of the case 18 on the vehicle interior side, whereby the case 18 is configured to be deployable from the fragile portion 32. The case 18 also has a rectangular case mounting portion 18A (see FIG. 2) sandwiching the bag mounting portion 16A of the bag 16.

The energy absorbing member 20 is made of resin and formed in a long shape, and includes a number of vertical ribs 34 and horizontal ribs 36 as shown in FIG. Also,
At the portions of the energy absorbing member 20 corresponding to the bag mounting portion 16A and the case mounting portion 18A, mounting seats 38 are provided.
Are integrally formed.

Here, as shown in FIG. 1, the above-mentioned vehicle occupant protection device 10 is divided into three parts along the longitudinal direction except for the bag 16. That is, the case 18 and the energy absorbing member 20 are connected to the front pillar portion 24 of the roof side rail portion 42 in the vehicle body side portion 40.
A first main body portion 44 is disposed from the vicinity of the connection portion with the center pillar portion 22 and includes a case middle portion and an energy absorbing member middle portion, and extends from the first body portion 44 to the front pillar portion 24 side. And a second main body portion 46 that is disposed along the front pillar portion 24 and includes a front portion of the case and a front portion of the energy absorbing member, and extends from the first main body portion 44 toward the rear pillar portion (C pillar portion) 48. A third portion, which is disposed from the vicinity of the center pillar portion 22 to the vicinity of the rear pillar portion 48 of the roof side rail portion 42 and includes a rear portion of the case and a rear portion of the energy absorbing member.
The main body 50 is divided into three elements. The case 18 and the energy absorbing member 20 are divided, and the bag 16 is not divided. The above-described inflator 14 is attached to the front end of the bag 16 in advance.

The above-described vehicle occupant protection device 10
In a state before being assembled to the vehicle body side portion 40, the bag 16 and the case 18 are temporarily fixed to the energy absorbing member 20. That is, as shown in FIG. 2, the energy absorbing member 20 is disposed adjacent to the case 18 accommodating the bag 16, and in this state, the bag mounting portion 16A and the case mounting portion 18A are attached to the mounting seat 38 of the energy absorbing member 20. And is temporarily fixed by a fixing bolt 52 and a temporarily fixing nut 54. Thereby, the bag 16 and the case 18 and the energy absorbing member 20 are sub-assembled before being assembled. In FIG. 1, a fixing bolt 52 and a nut 5 as temporary fixing means are provided.
4 is omitted.

Further, the vehicle occupant protection device 10 is mounted on the second main body 46 before being assembled to the vehicle body side portion 40.
Are obliquely bent toward the first main body 44 side. The third main body 50 is also obliquely bent toward the first main body 44 so as to cross the second main body 46. And the vehicle occupant protection device 1 bent in this manner.
Reference numeral 0 denotes a belt-shaped hook-and-loop fastener 56 (for example, magic tape (registered trademark of 3M)) wound around a portion where the second main body 46 and the third main body 50 intersect, and is temporarily fixed.

In the configuration described above, the first main body portion 44 and the third main body portion 50 correspond to the "first main body portion" of the first aspect, and the second main body portion 46 corresponds to the "first main body portion" of the first aspect. 2
Main unit ”.

Next, a method of assembling the vehicle occupant protection device 10 according to this embodiment to the vehicle body side portion 40 will be described.
The operation and effect of the present embodiment will be described through the description.

In the production factory, the case 18 and the energy absorbing member 20 are formed so as to be divided into three in the longitudinal direction, and the first main body 44, the second main body 46, and the third main body 50 are formed. , The bag 16 and the case 18 and the energy absorbing member 20 are temporarily fixed by fixing bolts 52 and nuts 54. The sub-assembled vehicle occupant protection device 10 is further provided with a
Is temporarily bent by the hook- and -loop fastener 56 as shown by a two-dot chain line. That is, the first main body 4
4, the second main body 46 and the third main body 50 are bent so that they intersect with each other, and the hook-and-loop fastener 5 is formed.
6 temporarily fixes the two. In addition, the inflator 1
4 is previously attached to the front end of the bag 16 in the production factory.

The vehicle occupant protection device 10 which has been made compact as described above is carried into the vehicle assembly plant from the production factory in that state, and the vehicle body side portion 4 is moved as follows.
Assembled to 0.

First, the nut 54 for temporary fixing is removed from the fixing bolt 52. Next, the operator grips the first main body portion 44 of the occupant protection device 10 for a vehicle with one hand,
Also, grasp the tool with the other hand. Next, the first main body 44
Is located along the position from the front pillar portion 24 to the center pillar portion 22 in the roof side rail portion 42 of the vehicle body side portion 40, and the fixing bolt 5 of the first main body portion 44 is
2 is screwed into a weld nut (not shown) arranged at a predetermined position of the roof side rail portion 42 using a tool held in the other hand. As a result, the first main body portion 44 of the vehicle occupant protection device 10 is fixed to the front side of the roof side rail portion 42 in advance. When performing this operation, the hook-and-loop fastener 56 is left attached.

Next, the hook-and-loop fastener 56 is removed. As a result, the second main body 46 and the third main body 50 can be separated from each other, so that the second main body 46 is first fixed to the front pillar 24. Specifically, the second main body 4
6 along the front pillar portion 24 and the second main body portion 4
The fixing bolt 52 of No. 6 is screwed to a weld nut (not shown) provided on the front pillar portion 24 using a tool held in the other hand. At this time, the inflator 14 is also fixed at a corresponding position on the front pillar portion 24 via a bracket 58 attached so as to surround the outer periphery thereof. As a result, the second main body 46 of the vehicle occupant protection device 10 is
Fixed to

Next, similarly, the third main body 50 is moved along the position from the center pillar portion 22 to the rear pillar portion 48 in the roof side rail portion 42, and the fixing bolt 52 of the third main body portion 50 is attached to the roof side rail portion. It is screwed into a weld nut (not shown) provided at a predetermined position of the rail portion 42 using a tool held in the other hand. Thereby, the third main body 50 of the vehicle occupant protection device 10 is fixed to the rear side of the roof side rail 42.

The above-described vehicle occupant protection device 10
The fixing work to the vehicle body side portion 40 is performed in the order of A to F shown in FIG. 1 as an example, but after fixing the first main body portion 44, fixing the third main body portion 50, and then fixing the second main body portion. 46 may be fixed.

Thereafter, the pillar garnish 60 is fixed to the front pillar portion 24 by bolts and weld nuts (not shown). Specifically, a strip-shaped strap 62 is insert-molded on the pillar garnish 60, and both ends (upper end and lower end) of the strap 62 are fixed to the front pillar portion 24 by unillustrated bolts and weld nuts. The pillar garnish 60 is fixed to the front pillar portion 24 by fitting a resin clip (not shown) integrally formed on the back surface of the pillar garnish 60 to the front pillar portion 24.

When the operation of the vehicle occupant protection device 10 is briefly described, when a predetermined high load is applied to the vehicle body side portion 40, the high load operation state is detected by the sensor 12. For this reason, a predetermined operating current is supplied from the center control unit to the ignition device of the inflator 14 to operate the inflator 14. As a result, gas is ejected from the inflator 14 and the bag 16 folded in a long shape is inflated. For this reason, the case 18 is broken off from the fragile portion 32 and deployed, and the bag 16 is bulged in a curtain shape from the front pillar portion 24 along the roof side rail portion 42. As a result, the occupant's head is protected.

Further, a load such that the occupant protection system 10 does not operate acts on the vehicle body side portion 40 from the outside of the passenger compartment,
When the head of the occupant has a secondary collision from the vehicle interior side to the vehicle body side portion 40, the energy absorbing member 20 is plastically deformed, so that the secondary collision load is absorbed.

As described above, in the present embodiment, the bag 1
The case 18 and the energy absorbing member 20 disposed adjacent to the case 18 are accommodated in three elements such as a first main body 44, a second main body 46, and a third main body 50. Then, the bag 16, the case 18 and the energy absorbing member 20 are temporarily fixed by the fixing bolts 52 and the nuts 54, and the second main body 46 and the third main body 50 are bent and temporarily fixed by the hook-and-loop fastener 56. Therefore, the long vehicle occupant protection device 10 can be made compact. That is, in the state before the assembly, the longitudinal dimension of the vehicle occupant protection device 10 can be reduced. Therefore, when the vehicle occupant protection device 10 is transported from the production factory to the vehicle assembly factory, the vehicle occupant protection device 10 can be easily transported, and the transportability of the vehicle occupant protection device 10 can be improved. In addition, when assembling the vehicle occupant protection device 10 to the vehicle body side portion 40 through the door opening 64, the assembling work can be performed as described above. There is no need to assemble the object as it is to the vehicle body side portion 40, and the assembly work of the vehicle occupant protection device 10 can be easily performed by one person. Therefore, the assembling property of the vehicle occupant protection device 10 to the vehicle body side portion 40 can be improved. In general, according to the present embodiment, it is possible to improve the transportability of the vehicle occupant protection device 10 from the production factory to the vehicle assembly factory and the assembling property at the vehicle assembly factory.

If the vehicle occupant protection device is to be attached to the vehicle body side portion 40 as a long object, the second main body 46
The portion corresponding to the third main body portion 50 hangs down from the portion corresponding to the first main body portion 44, and is easily caught by the edge around the door opening 64. However, according to the present embodiment, such a problem does not occur.

In the present embodiment, the bag 16 and the case 18 and the energy absorbing member 20 are temporarily fixed with the fixing bolts 52 and the nuts 54 in the production factory to form a sub-assembly. The number of working steps can be reduced as compared with the case where the bag 16 and the case 18 are assembled to the vehicle body side portion 40 after being assembled to the vehicle body 40. In addition, when transported from a production factory to a vehicle assembly factory, there is an advantage that the sub-assembly of the bag 16 and the case 18 and the energy absorbing member 20 does not cause loss, and the like. Therefore, the carrying property and the assembling property of the vehicle occupant protection device 10 can be further improved.

Further, in this embodiment, since the inflator 14 is previously attached to the front end of the bag 16 at the production factory, the inflator 14 can be assembled at the same time as the bag 16 and the case 18 are assembled. For this reason,
As compared with the case where the inflator 14 is retrofitted, the same thing as that described in the above effect is applied. Therefore, the carrying property and the assembling property of the vehicle occupant protection device 10 can be further improved.

In the present embodiment, the second main body 46 and the third main body 50 are bent so as to intersect with each other and are temporarily fixed by the hook-and-loop fastener 56.
By simply removing the hook-and-loop fastener 56 after assembling the vehicle occupant to the vehicle body side portion 40, the vehicle occupant protection device 10 can be made an original long object. Therefore, the vehicle occupant protection device 1
0 can be further improved. [Second Embodiment] Next, a second embodiment will be described with reference to FIG. Note that the same components as those of the above-described embodiment are denoted by the same reference numerals, and description thereof will be omitted.

As shown in this figure, in the vehicle occupant protection device 70 according to the present embodiment, the bag 16 is configured in the same manner, but the case 18 is omitted and a wrap member 72 is used instead. There is a feature in the point.

That is, the bag 16 is folded into an elongated shape, and the adjacent bag mounting portions 16 of the bag 16 are folded.
The portions located between A are wrapped by the wrap members 72, respectively. As a result, the vehicle occupant protection device 70 is fixed along the front pillar portion 24 and the first main body portion 74 fixed at a position from the front pillar portion 24 to the center pillar portion 22 in the roof side rail portion 42. A second main body 76 and a third main body 78 are provided, and a fourth main body 80 is fixed to the roof side rail 42 at a position ranging from the center pillar 22 to the rear pillar 48.

In the present embodiment, a pillar garnish 82 in which the strap 62 is not insert-molded is used. When the strap garnish 82 is assembled to the vehicle body side portion 40, it is fixed by a bolt 84 and a weld nut, and then is used for blindfolding. Cover 86 is fitted.

In the above-described configuration, the first main body 74 and the fourth main body 80 correspond to the “first main body” of the fourth aspect, and the second main body 76 and the third main body 78 are the same. It corresponds to the “second main body part” described in item 4.

According to the above configuration, the vehicle occupant protection device 70 is mounted on the non-wrapped portion (the bag mounting portion 16A) at the production factory.
Is formed at the position (formation position), and is folded in a bellows shape as shown by a two-dot chain line in FIG. And in this state,
The three members except the first main body 74 are temporarily fixed by the hook-and-loop fastener 56. Therefore, the same operation and effect as those of the first embodiment can be obtained.

The above-described vehicle occupant protection device 70
The fixing work to the vehicle body side portion 40 is performed in the order of A to D shown in FIG. 4 as an example, but after fixing the first main body portion 74, fixing the fourth main body portion 80, and then fixing the second main body portion. It is permissible to fix 76 and third main body 78.

Further, according to the present embodiment, the case 18 can be eliminated, so that the die cost and the like can be reduced, and the cost can be reduced. Furthermore, since the wrap member 72 is simply wound around the bag 16,
Workability can also be improved. In addition, case 18
It is possible to reduce the size and weight of the device as compared with using.

In the first embodiment, the case 18 and the energy absorbing member 20 are divided into three parts. However, the present invention is not limited to this, and may be divided into two parts or four or more parts.

In the above-described embodiment, the structure in which the vehicle occupant protection device 10 is provided along the roof side rail portion 42 from the front pillar portion 24 is employed, but the present invention is not limited to this. The vehicle occupant protection device is disposed from the portion 24 via the roof side rail portion 42 and further to the rear pillar portion 48 (that is, a configuration in which the vehicle occupant protection device is provided).
A vehicle occupant protection device for protecting not only the head of the occupant sitting on the front seat but also the head of the occupant sitting on the rear seat may be employed.

Further, in the above-described embodiment, the configuration is adopted in which the inflator 14 is attached to the front end of the bag 16 in advance. However, the present invention is not limited to this, and the inflator 14 is attached to at least one of the front end and the rear end of the bag 16. What is necessary is just to be attached beforehand. In the embodiment described above,
The inflator 14 is disposed near the connection between the front pillar portion 24 and the instrument panel 26. However, the inflator 14 is disposed at a predetermined portion of the vehicle body and connected to the front end of the bag 16 with a tube or the like. It may be.

In the first embodiment, the structure in which the energy absorbing member 20 is provided is adopted. However, the present invention is not limited to this.
A configuration in which the energy absorbing member 20 is not provided as in the embodiment may be adopted.

Further, in the above-described embodiment, a nut 54 is used by using the fixing bolt 52 used for fixing the vehicle occupant protection device 10, 70 to the vehicle body side portion 40.
Is screwed into the temporary fixing means,
Alternatively, a configuration may be adopted in which a temporary fixing means such as a clip or a clamp is used to temporarily fix a part other than the part to be fixed.

In the above-described embodiment, the hook-and-loop fastener 56 is used as the temporary fixing means.
Strings, paper tapes, belts, relatively large clips, clamps, etc. can also be used.

[0064]

As described above, the vehicle occupant protection device according to the first aspect of the present invention corresponds to the bag mounting portion.
A first case body including a plurality of case attachment parts for attaching to a roof side rail part a long case having a case attachment part at a position where the first body part is connected to the pillar part side. By dividing into the second main body part which is extended ,
It is formed continuously from the main body to the second main body and has a long length.
The first main body and the second main body in a state of being folded into a long shape;
The bag stored in the part is bent at the division
And is capable, so it is possible to shorten the longitudinal dimension of the motor vehicle occupant protection device in a state before assembling,
As a result, there is an excellent effect that the transportability from the production factory to the vehicle assembly factory and the assemblability at the vehicle assembly factory can be improved.

According to a second aspect of the present invention, there is provided an occupant protection system for an automobile according to the first aspect of the present invention, wherein the occupant protects the occupant when a predetermined load is applied to the vehicle body side along the pillar portion and the roof side rail portion. When the energy absorbing member for absorbing the secondary collision load on the head is provided, the energy absorbing member is also divided at substantially the same position together with the case, so that the energy absorbing member is also provided. As in the first aspect of the present invention, there is an excellent effect that the transportability from the production factory to the vehicle assembly factory and the assemblability at the vehicle assembly factory can be improved.

According to a third aspect of the present invention, in the vehicle occupant protection device according to the first or second aspect, when the energy absorbing member is provided, the energy absorbing member and the case are connected to each other. In the case where the three members of the bag are temporarily fixed by the temporary fixing means in advance and the energy absorbing member is not provided, the two members of the case and the bag are temporarily fixed by the temporary fixing means in advance. The occupant protection device can be subassembled before assembling, and has an excellent effect that the transportability and the assemblability of the above-described occupant protection device for an automobile can be further improved.

According to a fourth aspect of the present invention, there is provided a vehicle occupant protection device according to the present invention, wherein a portion positioned between a bag attachment portion adjacent to a pillar portion and a roof side rail portion in a long folded bag is a wrap member. A first body portion including a plurality of bag attachment portions for attachment to the roof side rail portion, and a second body portion extending continuously to the pillar portion side from the first body portion, As in the first aspect of the present invention, there is an excellent effect that the transportability from the production factory to the vehicle assembly factory and the assemblability at the vehicle assembly factory can be improved.

According to a fifth aspect of the present invention, in the vehicle occupant protection device according to any one of the first to fourth aspects, an inflator is provided on at least one of a front end and a rear end of the bag. Since it is attached in advance, it is possible to assemble the inflator at the same time as assembling the bag, etc.
As a result, there is an excellent effect that the transportability and the assemblability of the above-described vehicle occupant protection device can be further improved.

According to a sixth aspect of the present invention, in the vehicle occupant protection device according to the first aspect, the first main body and the second main body are bent.
Since the two members are temporarily fixed by the removable temporary fixing means, the vehicle occupant protection device can be made to be an original long object simply by removing the temporary fixing means as necessary. There is an excellent effect that the assemblability of the passenger occupant protection device can be further improved.

The vehicle occupant protection device according to the present invention according to claim 7 is applied when the vehicle occupant protection device according to claim 6 is assembled along the pillar portion and the roof side rail portion. Fixing the first main body portion to the roof side rail portion while being temporarily fixed by the temporary fixing means,
Next, after removing the temporary fixing means, the second main body portion is made to follow the pillar portion and the second main body portion is fixed to the pillar portion, so that the assemblability of the above-described vehicle occupant protection device is improved. It has an excellent effect that it can be produced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a vehicle occupant protection device according to a first embodiment in a state before being assembled to a vehicle body side portion.

FIG. 2 is an enlarged cross-sectional view of a main part, taken along line 2-2 in FIG. 1, showing a temporary fixing portion between the bag and the case and the energy absorbing member in the vehicle occupant protection device shown in FIG.

FIG. 3 is a side view showing a state in which the vehicle occupant protection device shown in FIG. 1 is operated.

FIG. 4 is a perspective view corresponding to FIG. 1, showing a vehicle occupant protection device according to a second embodiment in a state before being assembled to a vehicle body side portion.

FIG. 5 is a schematic configuration diagram showing a vehicle occupant protection device according to a conventional example.

[Explanation of symbols]

 Reference Signs List 10 occupant protection device 14 inflator 16 bag 16A bag attaching portion 18 case 18A case attaching portion 20 energy absorbing member 24 front pillar portion 40 body side portion 42 roof side rail portion 44 first main body portion 46 second main body portion 50 third Main body (first main body) 52 Fixing bolt (temporary fixing means) 54 Nut (temporary fixing means) 56 Surface fastener (temporary fixing means) 70 Automobile occupant protection device 72 Lapping member 74 First main body portion 76 Second main body portion 78 Third main body (second main body) 80 fourth main body (first main body)

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-6-227340 (JP, A) JP-A-3-276844 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B60R 21/22 B60R 21/08

Claims (7)

(57) [Claims] 1. An inflator which is disposed at a predetermined portion of a vehicle body and which injects gas when a predetermined high load is applied to a side portion of the vehicle body, a plurality of inflators which are folded long and extend along a pillar portion and a roof side rail portion. And a bag attached to the vehicle through the bag attachment portion and inflated in the shape of a curtain toward the interior of the vehicle by the flow of gas ejected from the inflator. Having a case mounting portion at a position corresponding to the bag mounting portion.
A first main body portion including a plurality of case mounting portions for mounting the long case to the roof side rail portion; a second main body portion extending to the pillar portion side continuously to the first main body portion; Minute
By splitting , is it formed continuously from the first main body to the second main body?
The first main body and the second
The bag stored in the main unit is folded at the
An occupant protection device for a vehicle, wherein the device is bendable . 2. An energy absorbing member for absorbing a secondary collision load of an occupant's head when a predetermined load is applied to a vehicle body side portion along a pillar portion and a roof side rail portion. The vehicle occupant protection device according to claim 1, wherein the energy absorbing member is also divided at substantially the same position together with the case. 3. When the energy absorbing member is provided, the energy absorbing member, the case and the bag are temporarily fixed in advance by temporary fixing means, and when the energy absorbing member is not provided, the case and the case are not fixed. The vehicle occupant protection device according to claim 1 or 2, wherein the two members of the bag are temporarily fixed in advance by temporary fixing means. 4. An inflator which is disposed at a predetermined portion of a vehicle body and injects gas when a predetermined high load is applied to a side portion of the vehicle body, and a plurality of inflators which are folded long and extend along a pillar portion and a roof side rail portion. And a bag attached to the vehicle through the bag attachment portion and inflated in the shape of a curtain toward the interior of the vehicle by the flow of gas ejected from the inflator. In a long folded bag, by wrapping a portion located between the pillar portion and the bag attaching portion adjacent to the roof side rail portion with a wrap member, the bag is attached to the roof side rail portion. A first body portion including a plurality of bag attachment portions, and a second body portion extending to the pillar portion side continuously from the first body portion. Occupant protection device for a dynamic vehicle. 5. The vehicle occupant protection device according to claim 1, wherein an inflator is attached to at least one of a front end portion and a rear end portion of the bag. 6. A first main body and a second main body are bent.
Te, tacking the it automobile occupant protection system according to any one of claims 1 to 5, characterized in both the removable temporary fixing means. 7. The first occupant protection device according to claim 6, which is applied to a case where the vehicle occupant protection device is assembled along a pillar portion and a roof side rail portion. The vehicle body is fixed to the roof side rail part, and then the temporary fixing means is removed, and then the second main body part is made to follow the pillar part, and the second main body part is fixed to the pillar part. Of installing a passenger protection device