CN104228748B - Side air bag device - Google Patents
Side air bag device Download PDFInfo
- Publication number
- CN104228748B CN104228748B CN201410256727.6A CN201410256727A CN104228748B CN 104228748 B CN104228748 B CN 104228748B CN 201410256727 A CN201410256727 A CN 201410256727A CN 104228748 B CN104228748 B CN 104228748B
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- China
- Prior art keywords
- air bag
- mentioned
- expansion
- expanding chamber
- folding
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/237—Inflatable members characterised by the way they are folded
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/23138—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection
- B60R2021/23146—Inflatable members characterised by their shape, construction or spatial configuration specially adapted for side protection seat mounted
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/233—Inflatable members characterised by their shape, construction or spatial configuration comprising a plurality of individual compartments; comprising two or more bag-like members, one within the other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/23—Inflatable members
- B60R21/231—Inflatable members characterised by their shape, construction or spatial configuration
- B60R21/2334—Expansion control features
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Air Bags (AREA)
Abstract
The present invention provides a kind of side air bag device.The side air bag device can be such that the folding part on the top of the expansion direction of air bag swimmingly deploys.Side air bag device includes inflator assemblies (30) and air bag (40).Inflator assemblies (30) are configured near the side of the chest for the occupant being seated on vehicle seat used, and it sprays expansion gas according to the impact from vehicle side.Air bag (40) is formed with multiple folding parts (66,68,69,72,73), for the air bag to be stored in a folded state, in the presence of the expansion gas of inflator assemblies (30), deploy and expand between position of the occupant being seated on vehicle seat used from chest to head and the side of sidewall portion of vehicle.In the side air bag device, the folding part (68,72) on the top of the expansion direction of air bag (40) is turned back to in-car side (side at the moment in Figure 12 (a)).
Description
Technical field
The present invention relates to a kind of side air bag device, it can be applied with impact to vehicle because of side collision etc. from side
In the case of, airbag deployment is made between the occupant being seated on vehicle seat used and the side of sidewall portion of vehicle and is expanded, so as to protect
Shield is not hit from position of the chest of occupant to head.
Background technology
The upper part of the body of occupant that is seated at as protection on vehicle seat used as caused by side collision etc. by not impacting
Device, it is well-known to have a kind of side air bag device including air bag and inflator.In the side air bag device, air bag is to fold
State is together accommodated in vehicle seat used backrest (backrest) with inflator.Moreover, because of side collision etc. from side
When side applies impact to the side of sidewall portion of vehicle, such as the car door of side, expansion gas is supplied from inflator to air bag.Airbag deployment
And expand, the state that one part is stayed in backrest is from vehicle seat used bulging.Afterwards, air bag is also in occupant and side
Deploy and expand in narrow space between wall portion.The air bag is between the upper part of the body of occupant and gradually to the side wall of in-car side entrance
Constrain the upper part of the body of occupant between portion, and relax the above-mentioned upper part of the body, impact from side are delivered to by side of sidewall portion.
As a technical scheme of above-mentioned side air bag device, for example, there is the technical scheme described in patent document 1.In the side
In airbag apparatus, inflator configures in backrest and is that the side of the chest for the occupant being seated on vehicle seat used is attached
Closely.Moreover, according to impacted as caused by side collision etc. from inflator spray expansion gas when, the expansion gas fold
Flowed in the air bag of state with front upward.Air bag is in the presence of the expansion gas, from being seated at automobile seat
The chest of occupant on chair to head position and vehicle side of sidewall portion between deploy and expand towards the front and top of vehicle.
In addition, recording a kind of the different from above-mentioned position of upper part of the body for constraining and protecting occupant in patent document 2
The side air bag device at position.
In any side air bag device described in above-mentioned patent document 1 and patent document 2, in the state of airbag fold
Under, turned back as top, upper end the folding part of expansion direction.
Patent document 1：Japanese Unexamined Patent Publication 2007-203939 publications
Patent document 2：Japanese Unexamined Patent Publication 2010-070178 publications
The content of the invention
Problems to be solved by the invention
But, in the side air bag device described in patent document 1 and patent document 2, supply expansion gas and make air bag
During expansion, the folding part turn back, upper end of the air bag is sometimes towards expansion on the outside of car.In this case, air bag is upper
The folding part at end is likely to contact the side of sidewall portion in vehicle during state (expansion) is turned back in releasing, and because friction hinders it
Smoothly deploy.
In the air bag for deploying and expanding towards front from rear using expansion gas, on the top as its expansion direction
In the case that end, front end folding part is turned back, above mentioned problem can be also produced as described above.
The present invention be in view of such actual conditions and complete, its object is to can make air bag there is provided a kind of
The side air bag device that the folding part on the top of expansion direction is swimmingly deployed.
The solution used to solve the problem
Solving the side air bag device of above-mentioned problem includes：Inflator, it is configured in the occupant being seated on vehicle seat used
Chest side near, it sprays expansion gas when vehicle side is impacted；And air bag, it is formed with multiple foldings
Folded portion, for the air bag to be stored in a folded state, in the presence of the expansion gas of above-mentioned inflator, upper
State and deploy and expand between the position from chest to head of occupant and the side of sidewall portion of vehicle, wherein, the expansion side of above-mentioned air bag
To the folding part on top turned back to in-car side.
Using said structure, when applying impact to vehicle from side because of side impact etc., spray and expand from inflator
Use gas.The folding part that the side of the inflator is directed away from from the folding part of the side close to inflator supplies the expansion gas
Body, folding part releases (expansion) according to the order and folded while expanding.Moreover, expansion is being supplied into gas with gas
During the folding part on the top of the expansion direction of capsule, the folding part releases state that (expansion) turn back to in-car side while swollen
It is swollen.In the expansion and when expanding, the folding part on above-mentioned top will not be contacted with the side of sidewall portion of vehicle, be difficult to cause because with the side wall
Friction between portion and hinder and smoothly deploy.
Preferably, in above-mentioned side air bag device, at least a portion of above-mentioned air bag folds to be formed from the top to the bottom
Multiple folding parts, and at least a portion of above-mentioned air bag deployed and expanded upward from below；The upper end of above-mentioned air bag
Folding part turned back as the folding part on the top of expansion direction to in-car side.
Using said structure, at least one of the expansion gas gushed out when vehicle side is impacted from inflator
Divide the folding part supply of folding part upward from below.Air bag is in the presence of the expansion gas, folding from below
The folding part of portion upward releases (expansion) and folded while expanding according to priority.Moreover, by expansion gas
When being supplied to the top of expansion direction as air bag, upper end folding part, the folding part releases the shape turned back to in-car side
State (expansion).In the expansion, the folding part of upper end will not be contacted with the side of sidewall portion of vehicle, be difficult to cause because with the side of sidewall portion it
Between friction harm and hinder and smoothly deploy.
Preferably, in above-mentioned side air bag device, the zoning wall that above-mentioned air bag is extended along roughly vertical direction separates
For the preceding expanding chamber on front side of the zoning wall and the rear expanding chamber on rear side of the zoning wall；Above-mentioned inflator configuration is above-mentioned
The bottom of expanding chamber afterwards；The position of the head side in above-mentioned occupant in above-mentioned zoning wall, which is provided with, makes above-mentioned rear expanding chamber
The upper communication hole connected between above-mentioned preceding expanding chamber；The portion of the chest side in above-mentioned occupant in above-mentioned zoning wall
Position is provided with the lower communication hole for making to connect between above-mentioned rear expanding chamber and above-mentioned preceding expanding chamber；What is folded from the top to the bottom is above-mentioned
The region being located on front side of above-mentioned zoning wall in air bag is according to the method for the folding rolled folding of equidirectional from front
Rearward fold, and the region being located on rear side of above-mentioned zoning wall in the above-mentioned air bag folded from the top to the bottom is according to alternately
The corrugated method for folding for changing folding direction is folded from front direction rear.
Using said structure, a part for the expansion gas gushed out when vehicle side is impacted from inflator exists
Flowed afterwards in expanding chamber with front upward.Than the corrugated folding of zoning wall rearward part in the expansion gas
Deploy and expand towards front under effect.It is easy to release feature as folded state here, corrugated folding has.Therefore,
Deploy in the chest of occupant, the rear portion side on head rapidly towards front part than the corrugated folding of zoning wall rearward
And expand, promptly constrain and protect the above-mentioned position of occupant.
The expansion gas at the position of the rear portion side of the chest in occupant is flowed and reached upward in rear expanding chamber
A part for body is flowed into by lower communication hole in the bottom of preceding expanding chamber.In addition, not by lower communication hole but rear swollen
The expansion gas at the position for the rear portion side that the swollen indoor top to the lower communication hole is flowed and reaches the head in occupant
A part for body, before being flowed into by upper communication hole in the top of expanding chamber.Than the part of the rolled folding of zoning wall on the front
Deploy and expand towards front in the presence of above-mentioned expansion gas.Here, rolled folding has the side being easy to along vehicle
The such feature of wall portion expansion.Therefore, the part of the rolled folding than zoning wall on the front is in the chest of occupant, the front portion on head
Side of sidewall portion of the side along vehicle deploys and expanded forwards, reliably constrains and protect the above-mentioned position of occupant.
Preferably, in above-mentioned side air bag device, at least bottom of above-mentioned air bag is folded from front direction rear to be formed
Multiple folding parts, and at least bottom of above-mentioned air bag carries out above-mentioned expansion and expansion from the rear to the front；The bottom of above-mentioned air bag
The folding part of front end is turned back as the folding part on the top of expansion direction to in-car side.
Using said structure, at least one of the expansion gas gushed out when vehicle side is impacted from inflator
Divide and supplied from the rear of the bottom of air bag towards front.The bottom of air bag in the presence of the expansion gas from the folding at rear
The folding part in folded portion towards front is gradually released according to priority folds (expansion).Moreover, expansion is supplied to gas as
When the top of the expansion direction of air bag, lower front part folding part, the folding part releases the state (exhibition turned back to in-car side
Open).In the expansion, above-mentioned folding part will not be contacted with the side of sidewall portion of vehicle, be difficult to cause because of rubbing between the side of sidewall portion
Wipe to hinder and smoothly deploy.
Preferably, in above-mentioned side air bag device, the zoning wall that above-mentioned air bag is extended along roughly vertical direction separates
For the preceding expanding chamber on front side of the zoning wall and the rear expanding chamber on rear side of the zoning wall；Above-mentioned inflator configuration is above-mentioned
The bottom of expanding chamber afterwards；The position of the chest side in above-mentioned occupant in above-mentioned zoning wall, which is provided with, makes above-mentioned rear expanding chamber
The lower communication hole connected between above-mentioned preceding expanding chamber；The folding part of the lower front part of above-mentioned air bag with above-mentioned zoning wall hand over
The state of fork is turned back.
Using said structure, at least one of the expansion gas gushed out when vehicle side is impacted from inflator
Divide and flowed from the rear of the bottom of rear expanding chamber towards front.Afterwards the bottom of expanding chamber in the presence of the expansion gas from rear
The folding part in the folding part of side towards front is gradually released according to priority folds (expansion).Moreover, expansion gas makes as gas
The demi-inflation in zoning wall rear in top, lower front part the folding part of the expansion direction of capsule.
In addition, a part for the expansion gas gushed out from inflator flows upward in rear expanding chamber.Expansion
When being flowed upward in rear expanding chamber with gas and reaching the position of the chest side in occupant, pass through lower communication hole stream
The part being located in front of zoning wall into the folding part of above-mentioned lower front part.Using the expansion gas, above-mentioned folding is released
The state (expansion) that portion is turned back to in-car side.Now, start using taking the lead in as described above expansion is located at zoning wall rear
Part pushes the part being located in front of zoning wall in above-mentioned folding part, therefore, it is possible to promptly be deployed.
The effect of invention
Using above-mentioned side air bag device, due to the folding part on the top of the expansion direction of air bag being turned back to in-car side, because
This, can be such that the folding part swimmingly deploys.
Brief description of the drawings
Fig. 1 is the figure for the embodiment for representing side air bag device, is by the vehicle seat used and air bag provided with the device
The side view together represented with occupant.
Fig. 2 represented in an embodiment, and the position relationship between vehicle seat used, air bag, occupant and side of sidewall portion is bowed
Depending on sectional view.
Fig. 3 is represented in an embodiment, the master of the position relationship between vehicle seat used, air bag, occupant and side of sidewall portion
Depending on sectional view.
Fig. 4 is represented in an embodiment, is incorporated with the in-built part of the sidepiece of the backrest of air bag component
Vertical view cutaway drawing.
Fig. 5 is represented in an embodiment, and air bag is set to the side view of the air bag component of unexpansive deployed condition.
Fig. 6 is the vertical view cutaway drawing of the schematic configuration of the inside for the air bag for representing an embodiment.
Fig. 7 is by the internal structure of Fig. 5 air bag component and occupant and the vehicle seat used partial side section view together represented
Figure.
Fig. 8 is represented in an embodiment, the side view of the state before the airbag fold of air bag component.
Fig. 9 is the figure of the air bag component in the midway stage for the airbag fold for representing an embodiment, and Fig. 9 (a) is side view
Figure, Fig. 9 (b) is the rearview from the left of above-mentioned Fig. 9 (a).
Figure 10 is the figure of the air bag component in the midway stage for the airbag fold for representing an embodiment, and Figure 10 (a) is side
View, Figure 10 (b) is the rearview from the left of above-mentioned Figure 10 (a).
Figure 11 is the figure of the air bag component in the midway stage for the airbag fold for representing an embodiment, and Figure 11 (a) is side
View, Figure 11 (b) is the rearview from the left of above-mentioned Figure 11 (a).
Figure 12 is the figure of the air bag component in the midway stage for the airbag fold for representing an embodiment, Figure 12 (a) be from
The side view of the back side of Figure 11 (a), Figure 12 (b) is the rearview from the right of above-mentioned Figure 12 (a).
Figure 13 is the figure of the air bag component in the midway stage for the airbag fold for representing an embodiment, and Figure 13 (a) is side
View, Figure 13 (b) is the line A-A sectional view of above-mentioned Figure 13 (a).
Figure 14 is the figure of the air bag component in the midway stage for the airbag fold for representing an embodiment, and Figure 14 (a) is side
View, Figure 14 (b) is the line B-B sectional view of above-mentioned Figure 14 (a).
Figure 15 is the figure for representing the airbag fold of an embodiment and being set to the air bag component of storage form, Figure 15's
(a) it is side view, Figure 15 (b) is the line C-C sectional view of above-mentioned Figure 15 (a).
Figure 16 is to represent that Fig. 4 air bag stays in one part in backrest from vehicle seat used bulging to deploy simultaneously
The partial cross-sectional top view of state after expansion.
Figure 17 is the side view of the position relationship between the broken line for the air bag for representing an embodiment and folding part.
Figure 18 is the figure corresponding with Figure 11 (b), be represent the folding part of the 1st tip side (upper end side) with above-mentioned reality
Apply the rearview of the variation of the air bag after the different mode of mode is folded.
Description of reference numerals
10th, vehicle；11st, side of sidewall portion；12nd, it is vehicle seat used；31st, inflator；40th, air bag；46th, rear expanding chamber；47th, it is preceding swollen
Swollen room；50th, zoning wall；54th, upper communication hole；55th, lower communication hole；66th, 68,69,72,73, folding part；P, occupant；PH, head
Portion；PT, chest；Z1, Z2, region.
Embodiment
Below, 1~Figure 17 of reference picture illustrates an embodiment of side air bag device.
It should be noted that in the following description, the direction of advance of vehicle being recited as into front, advised on the basis of it
Fixed forward and backward, upper and lower, left and right.In addition, in the various figures, " preceding " expression vehicle front side, " rear " expression vehicle rear-side is " interior " to represent
Vehicle interior side, " outer " expression vehicle outside.Vehicle interior side is proximate to the side of its middle position, car for vehicle-width direction
Outside is the side away from above-mentioned middle position.
In addition, the attitude (regular attitude) for being set to the occupant (adult) with standard physique to have predetermined is seated at car
With on seat.
As shown in FIG. 1 to 3, in vehicle 10, near the in-car side of side of sidewall portion 11 be configured with vehicle seat used 12.
This, side of sidewall portion 11 refers to vehicle constituting member of the configuration in the sidepiece of vehicle 10, and mainly car door, pillar etc. are equivalent to the vehicle
Member of formation.For example, the side of sidewall portion 11 corresponding with front-row seats is front door, center pillar (B pillars) etc..In addition, and rear row seat
The corresponding side of sidewall portion 11 of chair is the rear portion of side car door (tail gate), C pillars, tire installing space (Japanese：タイヤハウ
Front portion, back side panel ス) etc..
Vehicle seat used 12 include seat cushion (portions) 13 and backrest (backrest) 14, and the backrest 14 is from the seat
The rear side of seat cushion 13 erects and can be using Slope angle adjustment mechanism (omitting diagram) adjustment angle of inclination.Vehicle seat used 12
Configured with backrest 14 towards the attitude in front in vehicle 10.Vehicle seat used 12 width and car being configured so that
Width is consistent.
Backrest 14 includes the both sides of seat back main body 15 and the width located at the seat back main body 15
A pair of side electrode supports 16.Seat back main body 15 rolls the upper part of the body that occupant P is tiltedly supported from rear side backward.Two-side supporting portion
16 protrude forwards from seat back main body 15, are sitting in for limitation on seat cushion 13 and lean on multiplying for seat back main body 15
The action of the member P upper part of the body in the vehicle width direction.
Then, the internal structure of car lateral side in backrest 14, comprising the side electrode support 16 on the outside of car is illustrated.
The seat frame as its skeleton is configured with backrest 14.As shown in figure 4, a part for seat frame is matched somebody with somebody
The car Outboard Sections in backrest 14 are put, and the part (hereinafter referred to as " side frame member 17 ") it is by being bent to metallic plate
Formed by processing.It is configured with what is be made up of polyurethane foam elastomeric material on front side of the seat frame comprising side frame member 17
Seat buffer portion 18.In addition, being configured with the backboard 19 of the hard formed by synthetic resin etc. on rear side of seat frame.Separately
Outside, seat buffer portion 18 is covered by covering, but eliminates the diagram of the covering in Fig. 4.Figure 16 described later is similarly.
In seat buffer portion 18, on the outside of the car of side frame member 17 near be provided with incorporating section 21.The position of incorporating section 21
It is the center section of the above-below direction of backrest 14 and (joins to be seated near vehicle seat used 12 occupant P rear ramp
According to Fig. 2).The air bag component AM of the major part as side air bag device is incorporated with the incorporating section 21.
Slit 22 from the outside of the car in incorporating section 21 and the front side in incorporating section 21 corner towards on the outside of oblique front truck
Extension.(enclosed by the corner 18c and slit 22 of the front side of seat buffer portion 18 position clipped in Fig. 4 with the frame of double dot dash line
Into position) constitute the fracture reservations 23 that are broken by air bag 40 described later.
The air bag component AM being enclosed in above-mentioned backrest 14 includes inflator assemblies 30 as main member of formation
With air bag 40.Then, these member of formation are illustrated respectively.
Inflator assemblies 30
Inflator assemblies 30 include the locator as the inflator 31 and covering of the gas generator inflator 31
(retainer)32.In the present embodiment, as inflator 31 using the type referred to as firework type.Inflator 31 is in substantially
It is cylindric, the gas producing agent (omitting diagram) for producing expansion gas is contained inside it.
In addition, being used as inflator 31, it would however also be possible to employ make the high-pressure gas tank filled with gases at high pressure using gunpowder etc.
The type (mixed type) that partition wall is broken and sprays expansion gas, substitutes the firework type using above-mentioned gas producing agent.
On the other hand, locator 32 is the diffuser function as control expansion gas emission direction, and is had
There is the component for the function being fastened on above-mentioned inflator 31 and air bag 40 together on above-mentioned side frame member 17.The major part of locator 32
Pass through the substantially tubular for being formed as extending along roughly vertical direction to the sheet materials such as metallic plate progress bending machining etc..In locator
Being provided with 32 makes the interconnecting part (omitting diagram) of its inside and outside connection, and the most of of the expansion gas gushed out from inflator 31 are led to
Cross the outside that the interconnecting part is ejected into locator 32.
Bolt 34 is fixed with locator 32, as locator 32 to be arranged on into locking on above-mentioned side frame member 17
Component.
In addition, inflator assemblies 30 can also inflator 31 and locator 32 be integrally formed.
Air bag 40
As shown in double dot dash line in Fig. 1~Fig. 3, when the traveling process of vehicle 10 is medium because of side collision etc. from side pair
In the case that side of sidewall portion 11 is applied with impact, air bag 40, which is received from the expansion gas that inflator 31 is supplied, to deploy and expands,
Bloated with the state for staying in the part of its own in above-mentioned backrest 14 from the backrest 14 towards front.
Fig. 5 represents that air bag 40 is not filled by expansion gas and with state (hereinafter referred to as " the unexpansive expansion of plane expansion
State ") under air bag component AM.In addition, Fig. 7 in order to represent air bag component AM internal structure and by occupant P and automobile seat
Chair 12 is with the air bag component by the air bag 40 of the unexpansive deployed condition in Fig. 5 after the middle body cut-out of vehicle-width direction
AM is together represented.
As shown in Fig. 5~Fig. 7, by by 1 pieces of cloth (also referred to as base fabric, panel cloth etc.) along setting in the central portion
Point the doubling of broken line 42 and overlap in the vehicle width direction, the part of the coincidence is combined into pouch, so as to form air bag 40.
Here, two parts after above-mentioned coincidence in order to distinguish air bag 40, will be referred to as cloth portion 43 positioned at the part of in-car side, will be located at
Part on the outside of car is referred to as cloth portion 44.Each cloth portion 43,44 is in shape elongated in the vertical direction for fore-and-aft direction.
In addition, in the present embodiment, broken line 42 with being located at the rearward end of air bag 40 doubling pieces of cloth but it is also possible to be broken line
42 are located at other ends, the ground doubling pieces of cloth such as leading section, upper end, bottom.In addition, air bag 40 can also be by along upper
State two pieces of cloth composition that broken line 42 is divided into.In this case, by the way that two pieces of cloth are overlapped in the vehicle width direction,
By two pieces of cloth combination pouches, so as to form air bag 40.Also, air bag 40 can also be made up of more than 3 pieces of cloth.
In air bag 40, it with broken line 42 is the symmetry axis ground symmetrical relation of line each other that the outer shape in two cloth portions 43,44, which is,.
The shape in each cloth portion 43,44, size are set to：Air bag 40 deploys between vehicle seat used 12 and side of sidewall portion 11 and expands it
Afterwards, can occupy and be seated at it is in the upper part of the body of the occupant P on vehicle seat used 12, from chest PT to head PH position
Corresponding region (Fig. 1~Fig. 3).As shown in fig. 7, air bag 40 is formed as before the position of the head PH sides in occupant P
Hold the positions of 40a positioned at the front end 40b than the position in chest PT sides on the front.
As above-mentioned two cloth portion 43,44, use intensity is higher and with material that is flexible and can easily folding, example
Being weaved cotton cloth etc. for such as polyester line, polyamide thread formation be more adapted to.
Above-mentioned combination between two cloth portions 43,44 is carried out at the periphery joint portion 45 of the peripheral part located at them.
In the present embodiment, in most of peripheral part by sewing (being sutured with suture) two cloth portion 43,44 of periphery joint portion 45
, part in addition to rearward end (the neighbouring part of broken line 42) and formed.This forms this point for described later using sewing
It is also same for outer joint portion 52 and interior joint portion 53.
On above-mentioned sewing, in Fig. 5, Fig. 7~Figure 15 and Figure 17, the line performance sewing part of 3 types is utilized.1st
The line of type is the line (one kind of dotted line) for showing the thick line intermittent arrangement of constant length, is shown for such line
Go out the state (periphery joint portion 45 in reference picture 5 etc.) for having the sutured portion from side.The line of 2nd type is will be constant
The line (one kind of dotted line) showed, for such the fine rule intermittent arrangement of length (length longer than general dotted line)
Line is shown with state (the interior joint portion in reference picture 5 that the suture of (hiding) is cannot be directly viewed between cloth portion 43,44
53 etc.).The line of 3rd type is will to put the line (one kind of dotted line) showed with separating constant interval arrangement, for this type
Line shown with the suture in suture cloth portion 43,44 section (periphery joint portion 45 in reference picture 7 etc.).
As shown in Fig. 5~Fig. 7, between two cloth portions 43,44 and be the space surrounded by periphery joint portion 45 in expansion gas
Deploy and expand in the side of the occupant P upper part of the body in the presence of body, so that as constraining from chest PT to head PH's
The bulge that position and protecting it from is hit.
In addition, periphery joint portion 45 can also using the different means of the suture from being carried out using above-mentioned suture, it is for example sharp
The bonding carried out with bonding agent is formed.This point can also be formed using bonding for outer joint portion 52 and interior joint portion described later
It is also same for 53.
It is provided with air bag 40 and in the center section of fore-and-aft direction the zoning wall 50 extended along roughly vertical direction, air bag
40 are separated into than zoning the wall 50 rear expanding chamber 46 of side and the preceding expanding chamber 47 than the forward side of zoning wall 50 rearward.Zoning wall
50 have with being commonly referred to as constraint frenulum (Japanese：テ ザ ー) the same structure of part.
Zoning wall 50
Zoning wall 50 includes a pair of pieces of cloth 51, and a pair of pieces of cloth 51 are higher and with flexible and can easily fold by intensity
Material, same weave cotton cloth etc. such as with above-mentioned cloth portion 43,44 constitute.Two pieces of cloth 51 are in band elongated in the vertical direction
Shape.Each pieces of cloth 51 utilize two cloth that air bag 40 is incorporated into along the outer joint portion 52 that ora terminalis thereafter extends in roughly vertical direction
Relative part in portion 43,44.After the expansion of air bag 40, before being in the occupant P upper part of the body of two outer joint portions 52
The position of rear direction pars intermedia side is incorporated into the part corresponding with the rearward end of pieces of cloth 51 in cloth portion 43,44.Two pieces of cloth 51
The interior joint portion 53 extended using the front-end edge along them in roughly vertical direction is combined with each other.
So, the zoning wall 50 being made up of a pair of pieces of cloth 51 is erected on the outside of the cloth portion 43 of the in-car side in air bag 40 and car
Cloth portion 44 between.Zoning wall 50 is in 40 unexpansive expansion of air bag as the state (reference overlapped in the vehicle width direction
Fig. 5, Fig. 7).In addition, the be expanded into state (reference picture that is in the vehicle width direction tensioned of the zoning wall 50 with air bag 40
6) thickness (expanded thickness) of the vehicle-width direction of the air bag 40, is limited.
In zoning wall 50, air bag 40 is in the position of occupant P head PH side provided with swollen after making after expanding
The upper communication hole 54 connected between swollen room 46 and preceding expanding chamber 47.In addition, in zoning wall 50, air bag 40 expand after locate
The lower communication hole for making to connect between rear expanding chamber 46 and preceding expanding chamber 47 is provided with the position of occupant P chest PT side
55.More particularly, above-mentioned interior joint portion 53 releases combination respectively in its upper end and the two positions of bottom.In above-below direction
Upper end and bottom be not provided with making the interior joint portion 53 that two pieces of cloth 51 are combined.It is in the upper end of interior joint portion 53, relieve
With reference to position constitute upper communication hole 54, position in the bottom of the interior joint portion 53, to relieve combination constitutes above-mentioned
Lower communication hole 55.Upper communication hole 54 and lower communication hole 55 are closed in the state of two pieces of cloth 51 are overlapping, swollen in air bag 40
State swollen and that zoning wall 50 is tensioned in the vehicle width direction is opened.
Air bag 40 be in unexpansive deployed condition in the state of, i.e. zoning wall 50 pieces of cloth 51 coincidence in the state of, under
The lower-upper length L1 of portion's intercommunicating pore 55, which is formed, must be longer than the lower-upper length L2 of upper communication hole 54.Using the structure, air bag 40 is swollen
The aperture area of lower communication hole 55 after swollen is set the aperture area more than upper communication hole 54.
Moreover, above-mentioned inflator assemblies 30 is most of to be housed in rear expanding chamber along the attitude that roughly vertical direction extends
46 rear end lower.Cloth portion 43 of the bolt 34 of locator 32 through the in-car side of air bag 40.Run through using this, inflate unit
Part 30 can be with locking relative to the state that air bag 40 is positioned.
Also, the cloth portion 44 on the outside of car is in the front portion of preceding expanding chamber 47 and is to be connected in above-mentioned upper communication hole 54 with bottom
There is steam vent 56 between hole 55.In cloth portion 44, sewed using suture and rib is provided with around steam vent 56
57.Rib 57 is used to strengthen around the steam vent 56 in cloth portion 44, suppresses part cracking, bursts at the seams.
In addition, (b) of (a), Figure 15 such as Fig. 4 and Figure 15 is shown, there are inflator assemblies as main member of formation
30 and air bag 40 air bag component AM by folded airbag 40 turn into compact form (hereinafter referred to as " storage form ").This
It is to be adapted to storage for the incorporating section 21 that size is restricted in backrest 14 in order to which air bag component AM is made
Component.
By folding the air bag 40 of unexpansive deployed condition as shown in Fig. 8~Figure 15, storage form can be obtained.Connect
, illustrate the process of folded airbag 40, need to specify the position of broken line 42,61,64,67,71,74,75 in the explanation, fold
Position, the folding direction at position etc..Therefore, when specifying the position of above-mentioned broken line, folding the position at position, with inflator assemblies
Each portion of air bag 40 is specified on the basis of 30.Just along inflator assemblies 30 axis AL direction (roughly vertical direction) and
Speech, " the 1st cardinal extremity " will be referred to as close to one end of inflator assemblies 30, and the one end that will be far from inflator assemblies 30 is referred to as " the 1st top
End ".In the state of the air bag 40 of unexpansive deployed condition is arranged on vehicle seat used 12, above-mentioned 1st cardinal extremity is equivalent to this
The lower end of air bag 40, upper end of above-mentioned 1st top equivalent to the air bag 40.
The direction (substantially fore-and-aft direction) orthogonal with the axis AL of inflator assemblies 30 is also same.Will be close to inflator
One end of component 30 is referred to as " the 2nd cardinal extremity ", and the one end that will be far from inflator assemblies 30 is referred to as on " the 2nd top ".In unexpansive expansion
The air bag 40 of state be arranged on vehicle seat used 12 in the state of, above-mentioned 2nd cardinal extremity equivalent to the air bag 40 rear end, it is above-mentioned
Front end of 2nd top equivalent to the air bag 40.
In addition, when specifying folding direction, it is assumed that be arranged on for air bag 40 on vehicle seat used 12, use " car on the outside of " and
The word of " in-car side ".
Fig. 8 is set to the vertically extending appearances of axis AL of broken line 42 and inflator assemblies 30 from representing on the outside of the car
The state of the air bag 40 of the unexpansive deployed condition of state.It is in the air bag 40, from inflator assemblies 30 to the 1st tip side (Fig. 8
In upper end side) leave the position of some and be set with the broken line 61 orthogonal with broken line 42.As shown by the arrows in Figure 8, in air bag 40
, than above-mentioned broken line 61 by the 1st tip side (upper end side in Fig. 8) part 62 along the broken line 61 on the outside of car (in Fig. 8
Side at the moment) turn back.Turned back using this, the part of above-mentioned part 62 with it is in air bag 40, than broken line 61 depend on the 1st base end side (Fig. 8
In lower end side) part 63 it is a part of overlapping.Air bag 40 turns into the form shown in Fig. 9 (a), Fig. 9 (b).
Then, in above-mentioned part 62, leave from above-mentioned broken line 61 to the 1st tip side (lower end side in Fig. 9 (a))
Position and the broken line 61 abreast set broken line 64.It is in above-mentioned part 62, than above-mentioned as shown in arrow in (a) of the Fig. 9
Broken line 64 by the 1st tip side (lower end side in Fig. 9 (a)) part 65 along the broken line 64 on the outside of car (in Fig. 9 (a)
Side at the moment) turn back.Turned back using this, the part of above-mentioned part 65 and being clipped by broken line 61 and broken line 64 in air bag 40
Partly (hereinafter referred to as " folding part 66 ") it is a part of overlapping.Air bag 40 turns into the form shown in Figure 10 (a), Figure 10 (b).
Then, in above-mentioned part 65, from above-mentioned broken line 64 to the 1st tip side (upper end side in Figure 10 (a)) from
The position opened abreast is set with broken line 67 with the broken line 64.As shown in arrow in (a) of the Figure 10, it is in part 65, than folding
Line 67 by the 1st tip side (upper end side in Figure 10 (a)) part (hereinafter referred to as " folding part 68 ") along the broken line 67 to
In-car side (inboard in Figure 10 (a)) is turned back.Turned back using this, the major part of above-mentioned folding part 68 in air bag 40 with being rolled over
Part that line 64 and broken line 67 are clipped (hereinafter referred to as " folding part 69 ") it is a part of overlapping.Air bag 40 turns into Figure 11 (a), figure
Form shown in 11 (b).
Figure 12 (a), Figure 12 (b) represent from dorsal part, i.e. from in-car side Figure 11 (a), Figure 11 (b) above-mentioned gas
The state of capsule 40.Shown in such as (a) of the Figure 12, Figure 12 (b), the above-mentioned portion for being accommodated with inflator assemblies 30 in air bag 40
63 are divided to be set with broken line 71.The broken line 71 be set expansion direction with regard to air bag 40, i.e. with the axis AL of inflator assemblies 30 just
The 2nd tip side (front) for the direction of friendship.Here, broken line 71 is set as tilting relative to axis AL.Such as Figure 12 (a)
Shown in middle arrow, portion in above-mentioned part 63, that the 2nd tip side (the oblique lower left side in Figure 12 (a)) is leaned on than above-mentioned broken line 71
Point (hereinafter referred to as " folding part 72 ") turned back along the broken line 71 to in-car side (side at the moment in Figure 12 (a)).Utilize the folding
Return, part in folding part 72 and part 63, being surrounded by broken line 71, broken line 42 and broken line 61 (hereinafter referred to as " folding part 73 ")
It is a part of overlapping.(b) of (a), Figure 13 such as Figure 13 are shown, and air bag 40 turns into folding part 69,68,66,73,72 on the outside of car
Towards car medially overlapping intermediary.
Then, as Figure 13 (a), Figure 13 (b) shown in, just the direction orthogonal with the axis AL of inflator assemblies 30 and
Speech, in the region Z1 that the 2nd tip side (front) is leaned on than zoning wall 50 (outer joint portion 52) of the air bag 40 of above-mentioned intermediary
Multiple positions be abreast set with broken line 74 with above-mentioned broken line 42 (axis AL) respectively.Moreover, above-mentioned zone Z1 utilize along
Each broken line 74 is to the folding rolled folding of equidirectional, from the 2nd tip side (front) the 2nd base end side (rear end side) of direction
Fold.Using the folding, air bag 40 turns into the form shown in Figure 14 (a), Figure 14 (b).
Then shown in (a), Figure 14 (b), such as Figure 14, for the direction orthogonal with axis AL, in rolled folding
Above-mentioned air bag 40 than zoning wall 50 (outer joint portion 52) by the 2nd base end side (rear end side) region Z2 multiple positions respectively with
Above-mentioned broken line 42 (axis AL) is abreast set with broken line 75.Alternately change along each broken line 75 moreover, above-mentioned zone Z2 is utilized
Become the corrugated folding folded with turning back direction to fold from the 2nd tip side (front) towards the 2nd base end side (rear end side).Utilize
The folding, air bag 40 turns into the storage form shown in Figure 15 (a), Figure 15 (b).
So, air bag 40 be folded and the air bag component AM in storage form no matter along inflator assemblies 30
Axis AL direction (roughly vertical direction), or in the direction orthogonal with the axis AL of inflator assemblies 30 (substantially front and back
To) on, its size all diminishes, thus as also be adapted for for the narrow incorporating section 21 even for backrest 14 store
Component.
As shown in figure 4, in the air bag component AM of storage form is set to, self-positioning device 32 extends and has run through air bag 40
The bolt 34 in (cloth portion 43), through side frame member 17.Moreover, by the way that nut 35 is tightened on the bolt 34, making inflation unit
Part 30 and air bag 40 are fixed on side frame member 17 together.
In addition, inflator assemblies 30 can also utilize the components different with nut 35 from above-mentioned bolt 34 to be fixed on side frame member
17。
As shown in figure 1, side air bag device is in addition to including above-mentioned air bag component AM (reference picture 2), also passed including impact
Sensor 81 and control device 82.Shock transducer 81 is made up of acceleration transducer etc., and it (joins located at the side of sidewall portion 11 of vehicle 10
According to Fig. 2) etc., for detecting the impact applied from side to the side of sidewall portion 11.Control device 82 is based on coming from shock transducer 81
Detection signal control inflator 31 work.
Also, it is equipped with and is used for the occupant being seated on vehicle seat used 12 P to be constrained in into the vehicle on vehicle 10
Seat safety belt apparatus on seat 12, but eliminate in Fig. 1 etc. the diagram of the seat safety belt apparatus.
Then, the effect of the side air bag device of the present embodiment constituted as described above is illustrated.
In the side air bag device, impacted applying not because of side collision etc. from side to the side of sidewall portion 11 of vehicle 10
When, the working signal for making the inflator 31 work is not exported from control device 82 to inflator 31, not from the inflator 31
Expansion gas is supplied to air bag 40.Air bag component AM is continued to be accommodated in incorporating section 21 (reference picture 4) to store with form.
In contrast, during the traveling of vehicle, setting is applied from side to side of sidewall portion 11 because of side collision etc.
Impact above, when detecting the situation by shock transducer 81, based on the detection signal from control device 82 to inflator 31
Export the working signal for making the inflator 31 work.In inflator 31, gas producing agent is produced according to the working signal
The expansion gas of high pressure, and spray the expansion gas.The interconnecting part quilt that the expansion gas gushed out passes through locator 32
It is supplied to air bag 40.Here, the zoning wall 50 that air bag 40 is located at the pars intermedia of its fore-and-aft direction is divided into the rear He of expanding chamber 46
Preceding expanding chamber 47, the rear end lower in the rear expanding chamber 46 is configured with inflator assemblies 30.Therefore, from the swollen of inflator 31
The swollen rear end lower being fed into gas in rear expanding chamber 46.
As shown in figure 17, the expansion gas is directed away from this from the folding part 73 of the side close to inflator assemblies 30 and filled
The folding part 68 of the side of mechanism of qi component 30,72 ground flow in rear expanding chamber 46.Change a kind of expression, expansion gas is from expansion
The folding part 73 of the 1st base end side (lower end side) on direction is towards the ground of folding part 68 of the 1st tip side (upper end side) in rear expansion
Flowed upward in room 46.In addition, folding part 73 direction of the expansion gas from the 2nd base end side (rear end side) on expansion direction
Flowed forwards in rear expanding chamber 46 on the ground of folding part 72 of 2nd tip side (front).1st base end side and the 2nd base end side
Folding part 73 is the folding part for containing inflator assemblies 30.
The expansion flowed forwards on the ground of folding part 72 from the 2nd base end side towards the 2nd tip side reaches zoning with gas
During wall 50, flow direction is changed upward along the zoning wall 50, is collaborated with the expansion originally just flowed upward with gas.
Using above-mentioned expansion gas upward, rear expanding chamber 46 is released upward in order from below on one side
(expansion) is folded while expanding.
In addition, using the above-mentioned expansion gas towards front, in air bag 40 than rearward corrugated of zoning wall 50
The region Z2 (reference picture 14) of folding is folded while expanding while releasing (expansion) in order from rear towards front.
Air bag 40 as described above upward, during front deploys and expands, the seat buffering of backrest 14
Part 18 is pressed by air bag 40, is broken at fracture reservations 23 in Fig. 4.As shown in figure 16, air bag 40 with by its own
Substantially front drum of the state that rearward end is together stayed in incorporating section 21 with inflator assemblies 30 from backrest 14 to vehicle 10
Go out.
Above-mentioned expansion gas makes portion in the folding part 72 of the 2nd tip side (front), than zoning wall 50 rearward
Divide expansion.
It is easy to release feature as folded state here, corrugated folding has.Therefore, than zoning wall 50 rearward
The region Z2 of corrugated folding deploys and expanded rapidly towards front.
In addition, the volume of rear expanding chamber 46 is less than in the case where air bag 40 is not separated by the zoning wall 50, air bag 40
Volume.In addition, the expanded thickness on the vehicle-width direction of rear expanding chamber 46 is less than in the case where air bag 40 is not separated
, expanded thickness on the vehicle-width direction of the air bag 40.Therefore, rear expanding chamber 46 is also easy in narrow gap
While deployed by one side and expanded.
As shown in Fig. 7 and Figure 17, the rear portion side for the chest PT for flowing upward in rear expanding chamber 46 and reaching occupant P
A part for the expansion gas of side is flowed into by lower communication hole 55 in the bottom of preceding expanding chamber 47.In addition, not under
Portion's intercommunicating pore 55 and after being flowed to the top of the lower communication hole 55 in the rear expanding chamber 46 and reaching occupant P head PH
A part for the expansion gas of portion side is flowed into by upper communication hole 54 in the top of preceding expanding chamber 47.Now, due to
The aperture area of lower communication hole 55 is more than the aperture area of upper communication hole 54, therefore, compared with upper communication hole 54, under
There is substantial amounts of expansion gas to flow in portion's intercommunicating pore 55.
The part that the expansion gas of preceding expanding chamber 47 is flowed into by lower communication hole 55 changes with lower section upward
Direction.In addition, the part that the expansion gas of preceding expanding chamber 47 is flowed into by upper communication hole 54 changes downwards direction.
In the presence of these expansion gases, the part after the rolled folding in the front of zoning wall 50 is in chest PT, head
Deploy and expand towards front in portion PH anterior side.Now, as described above, expansion gas is in the He of lower communication hole 55
Flow in upper communication hole 54 is different, therefore, is difficult the position for causing the anterior side for being predefined in head PH to deploy and expand
Side prior to other positions, particularly chest PT is deployed and expanded, that is, is difficult to cause the shoulder PS and vehicle by occupant P
Side of sidewall portion 11 between narrow gaps position before deploy and expand.Deploy and expand in the anterior side for being predefined in head PH
Position be to deploy and expand after the position for having passed through the narrow gaps between shoulder PS and side of sidewall portion 11.As a result, not
The position for easily causing head PH in the generation of following phenomenon, i.e. air bag 40, to be predefined in occupant P side to deploy and expand becomes
The expansion and expansion that other positions are hindered by the position of above-mentioned narrow gaps must be difficult to.Air bag 40 is in the chest from occupant P
PT deploys and expanded to the side at head PH position.
It is easy to deploy such feature along the side of sidewall portion 11 of vehicle 10 in addition, rolled folding has.Therefore, zoning wall 50
Front rolled folding part occupant P chest PT, head PH side of sidewall portion 11 of the anterior side along vehicle forward
Fang Zhankai simultaneously expands.
Preceding expanding chamber 47 is flowed into by lower communication hole 55 and the expansion of direction is changed downwards and is supplied to gas
During the part for being located at the front of zoning wall 50 into the folding part 72 of the 2nd tip side (front), (expansion) folding part is released
72 states turned back to in-car side.In the expansion, folding part 72 is not contacted with the side of sidewall portion 11 of vehicle, is difficult to cause following shape
The generation of condition, i.e., smoothly deploy because the friction between folding part 72 and the side of sidewall portion 11 is hindered.In addition, the position in folding part 72
The part for being located at the rear side of zoning wall 50 for being taken the lead in starting expansion as described above in the part of the front side of zoning wall 50 is pushed, therefore
Can promptly it be deployed.
A part for the expansion gas flowed upward in rear expanding chamber 46 reaches the folding of the 1st tip side (upper end side)
During folded portion 68, the state that (expansion) folding part 68 is turned back to in-car side is released.In the expansion, folding part 68 not with vehicle 10
Side of sidewall portion 11 contact, be difficult to cause the generation of following situation, i.e., hindered by the friction between folding part 68 and the side of sidewall portion 11
Smoothly deploy.
As shown in fig. 7, after air bag 40 completes expansion and expansion, the position of the head PH sides in occupant P
Positions of the front end 40a positioned at the front end 40b than the position in chest PT sides on the front.Therefore, compared in occupant P's
The front end 40a at the position of head PH sides is located at the front end 40b identicals position with air bag 40 or the front end 40b positioned at air bag 40
Rear mode, the region that the side in head PH in air bag 40 is deployed and expanded extends in front.
Further, it is assumed that upper communication hole 54 is located at the folding part different from the folding part 68 of topmost, such as folding part 69
On, then expansion gas is flowed into preceding expanding chamber 47 by upper communication hole 54 and expands the preceding expanding chamber 47, can so as to have
Expansion and expansion hereafter carry out, folding part 68 can be hindered.
At this point, in the present embodiment, in the folding part 68 that topmost is located at due to upper communication hole 54, because
This, during deploying in the folding part 68, before the expansion gas in rear expanding chamber 46 is flowed into by upper communication hole 54
Expanding chamber 47.Thus, it is difficult to cause the expansion and expansion for hindering folding part 68 because of upper communication hole 54.
As shown in double dot dash line in Fig. 2 and Fig. 3, the air bag 40 for deploying and expanding as described above is between occupant P and gradually
Directly pushed to in-car side between the side of sidewall portion 11 entered to in-car side and constrain the occupant P, and relaxed by side of sidewall portion
11 are delivered to the occupant P impact from side.
In addition, being flowed into the top of preceding expanding chamber 47 by upper communication hole 54 and changing the expansion of direction downwards
The outside of air bag 40 is discharged to by steam vent 56 with gas (than the side by vehicle of cloth portion 44).Utilize the row of the expansion gas
Go out caused internal pressure reduction, the impact from side that occupant P is delivered to by side of sidewall portion 11 can be relaxed.In addition, as upper
The expansion gas that state makes the top of preceding expanding chamber 47 deploy and expand like that is discharged from steam vent 56, therefore, it is possible to suppress
The expansion lower flow for being located at the lower section of steam vent 56 of gas expanding chamber 47 forward.As a result, preceding expanding chamber can be suppressed
Deploy and expand because of excessive pressure in chest PT side in 47 bottom.
Using the present embodiment of detailed description above, following effect is resulted in.
(1) air bag 40 is made from being seated at multiplying on vehicle seat used 12 using the expansion gas from inflator 31
Member P chest PT is into the side air bag device for deploying and expanding between the side of sidewall portion 11 of head PH position and vehicle 10, by gas
The folding part 68,72 on the top of the expansion direction of capsule 40 is turned back (Figure 12) to in-car side.
Therefore, it is possible to suppress the side of sidewall portion 11 that folding part 68,72 is contacted with vehicle 10 when state (expansion) is turned back in releasing,
The folding part 68,72 is set swimmingly to deploy.
(2) multiple ground of folding part 66,68,69,73 are formed from above towards lower section folded airbag 40, and make air bag 40 under
Side is deployed upward and expanded (Figure 17).Moreover, regarding the folding part 68 of the upper end of air bag 40 as expansion direction
Turned back (Figure 11 (a), Figure 11 (b)) to in-car side to the folding part on top.
Therefore, in the structure that the folding part 68 of the upper end of air bag 40 is turned back to in-car side, the effect of above-mentioned (1) is resulted in
Really.
(3) air bag 40 is divided into than the forward side of the zoning wall 50 using the zoning wall 50 extended along roughly vertical direction
Preceding expanding chamber 47 and the rear expanding chamber 46 than the zoning wall 50 side rearward, inflator 31 is configured in the bottom of rear expanding chamber 46.
The position of the head PH sides in occupant P in zoning wall 50, which is set, makes what is connected between rear expanding chamber 46 and preceding expanding chamber 47
Upper communication hole 54, also, chest PT sides in occupant P in zoning wall 50 position set make after the He of expanding chamber 46
The lower communication hole 55 (Fig. 7) connected between preceding expanding chamber 47.Will be by from above towards formed by lower section folded airbag 40
It is in multiple folding parts 66,68,69,73, than the forward side of zoning wall 50 region Z1 using rolled folding from front towards rear
Fold (Figure 13 (a), Figure 13 (b)), will by from above towards multiple folding parts 66 formed by lower section folded airbag 40,
68th, in 69,73, than the region Z2 of the side rearward of zoning wall 50 using corrugated fold fold (Figure 14's from front towards rear
(a), Figure 14 (b)).
Therefore, it is possible to the rear that makes zoning wall 50 corrugated folding part after occupant P chest PT, head PH
Portion side is deployed and expanded rapidly towards front, so as to promptly constrain and protect occupant P above-mentioned position.Furthermore it is possible to
Make the part of rolled folding in the front of zoning wall 50 in occupant P chest PT, head PH side of the anterior side along vehicle
Wall portion 11 is deployed and expanded forwards, reliably constrains and protect occupant P above-mentioned position.
(4) folding part 72,73 ground are formed from front towards the bottom of rear folded airbag 40, and make the bottom of air bag 40 from
Deployed and expanded towards front in rear.Moreover, regarding the folding part 72 of the lower front part of air bag 40 as expansion direction
Turned back (Figure 12 (a)) to in-car side to the folding part on top.
Therefore, in the structure that the folding part 72 of the lower front part of air bag 40 is turned back to in-car side, result in above-mentioned (1)
Effect.
(5) air bag 40 is divided into than the forward side of the zoning wall 50 using the zoning wall 50 extended along roughly vertical direction
Preceding expanding chamber 47 and the rear expanding chamber 46 than the zoning wall 50 side rearward, inflator 31 is configured in the bottom of rear expanding chamber 46.
The position of the chest PT sides in occupant P in zoning wall 50, which is set, makes what is connected between rear expanding chamber 46 and preceding expanding chamber 47
Lower communication hole 55 (Fig. 7).Also, by the folding part 72 of the lower front part of air bag 40 with zoning wall 50 (outer joint portion 52) hand over
The state of fork is turned back (Figure 12 (a)).
Therefore, it is possible to start the folding part 72 that expansion, zoning wall 50 rear portion pushes lower front part using taking the lead in
In the part for being located at the front of zoning wall 50, can promptly be deployed.
In addition, above-mentioned embodiment also can be as follows change after implemented as variation.
The aperture area of lower communication hole 55 can also be set to the aperture area identical with upper communication hole 54
Size.In this case, the effect same with above-mentioned embodiment is also resulted in.
Steam vent 56 can also be formed as and circular different shape, such as slit-shaped.
Inflator 31 can also be directly installed on side frame member 17 without using locator 32.
Air bag 40 can also be that its substantially entirety expands as above-mentioned embodiment, but it is also possible to have in a part
Expansion gas is not supplied to without the unexpansive portion that expands.
A part in Figure 10 (a), the 1st tip side (upper end side) folding part 68 can also be further to in-car
Side is turned back.Figure 18 represents one example.In this case, for example in the folding part 68 of Figure 10 (a), from broken line 67
The position left to the 1st tip side (upper end side in Figure 10 (a)) is abreast set with broken line 77 with the broken line 67.Such as figure
Shown in 10 (a), portion in above-mentioned folding part 68, that the 1st tip side (upper end side in Figure 10 (a)) is leaned on than above-mentioned broken line 77
Point (hereinafter referred to as " folding part 78 ") turned back along the broken line 77 to in-car side (inboard in Figure 10 (a)).Turned back using this,
Part (hereinafter referred to as " the folding part of the major part of above-mentioned folding part 78 and being clipped by broken line 67 and broken line 77 in air bag 40
79 ") major part is overlapping.
Even if in this case, in the folding part 78 positioned at the 1st tip side (upper end side) while release (expansion) to
State that in-car side is turned back while during expansion, the folding part 78 will not also be contacted with the side of sidewall portion 11 of vehicle 10, be difficult to cause because
Friction between the side of sidewall portion 11, which is hindered, smoothly to be deployed.
The bottom of air bag 40 is folded more than twice in which can also form 3 portions folding as above from front towards rear.
The folding from the 2nd tip side (front) towards the 2nd base end side (rear end side) of air bag 40 is not limited to the gas
The bottom of capsule 40, upper part that can also be including comprising the bottom is carried out.
Can also omit air bag 40 from the 1st tip side (upper end side) towards the 1st base end side (lower end side) folding and
From the 2nd tip side (front) towards any one of folding of the 2nd base end side (rear end side).
Zoning wall 50 can also be made up of 1 pieces of cloth.
Vehicle seat used 12 backrest 14 can also be substituted, and is set in side of sidewall portion 11 equivalent to incorporating section 21
Position, air bag component AM is loaded here.
Family car is not limited to using the vehicle of above-mentioned side air bag device, also comprising various industrial vehicles.
Claims (11)
1. a kind of side air bag device, it includes：
Inflator, its configure near the side of the chest for the occupant being seated on vehicle seat used, its when vehicle side by
Expansion gas is sprayed during impact；And
Air bag, it is formed with multiple folding parts, for the air bag to be stored in a folded state, in above-mentioned inflator
In the presence of expansion gas, the expansion and swollen between position from chest to head of above-mentioned occupant and the side of sidewall portion of vehicle
Swollen, the side air bag device is characterised by,
Above-mentioned multiple folding parts are formed at least a portion of above-mentioned air bag,
The folding part on the top of the expansion direction of above-mentioned air bag is turned back to in-car side, while by the expansion direction cardinal extremity of above-mentioned air bag
Clamped from vehicle interior side and the vehicle exterior side multiple folding parts of side.
2. a kind of side air bag device, it includes：
Inflator, its configure near the side of the chest for the occupant being seated on vehicle seat used, its when vehicle side by
Expansion gas is sprayed during impact；And
Air bag, it is formed with multiple folding parts, for the air bag to be stored in a folded state, in above-mentioned inflator
In the presence of expansion gas, the expansion and swollen between position from chest to head of above-mentioned occupant and the side of sidewall portion of vehicle
Swollen, the side air bag device is characterised by,
Above-mentioned air bag is combined into by the periphery joint portion set by the peripheral part in the two cloth portions overlapped in the vehicle width direction
It is bag-shaped, it is swollen before being divided into by the zoning wall that above-mentioned periphery joint portion is extended to along roughly vertical direction on front side of the zoning wall
Swollen room and the rear expanding chamber on rear side of the zoning wall,
Provided with the intercommunicating pore for making to connect between above-mentioned rear expanding chamber and above-mentioned preceding expanding chamber in above-mentioned zoning wall,
The folding part on the top of the expansion direction of above-mentioned air bag is turned back to in-car side.
3. side air bag device according to claim 2, wherein, the head side in above-mentioned occupant in above-mentioned zoning wall
The position of side is provided with the upper communication hole for making to connect between above-mentioned rear expanding chamber and above-mentioned preceding expanding chamber,
Above-mentioned upper communication hole is located at the folding part on the top of the expansion direction of above-mentioned air bag.
4. side air bag device according to claim 1, wherein,
At least a portion of above-mentioned air bag folds to form multiple folding parts from the top to the bottom, and at least a portion of above-mentioned air bag
Deployed and expanded upward from below,
The folding part of the upper end of above-mentioned air bag is turned back as the folding part on the top of expansion direction to in-car side.
5. side air bag device according to claim 2, wherein,
At least a portion of above-mentioned air bag folds to form multiple folding parts from the top to the bottom, and at least a portion of above-mentioned air bag
Deployed and expanded upward from below,
The folding part of the upper end of above-mentioned air bag is turned back as the folding part on the top of expansion direction to in-car side.
6. side air bag device according to claim 3, wherein,
At least a portion of above-mentioned air bag folds to form multiple folding parts from the top to the bottom, and at least a portion of above-mentioned air bag
Deployed and expanded upward from below,
The folding part of the upper end of above-mentioned air bag is turned back as the folding part on the top of expansion direction to in-car side.
7. the side air bag device according to any one of claim 4~6, wherein,
Above-mentioned air bag is divided into preceding expanding chamber and position on front side of the zoning wall by the zoning wall extended along roughly vertical direction
Rear expanding chamber on rear side of the zoning wall,
Above-mentioned inflator is configured in the bottom of above-mentioned rear expanding chamber,
The position of the head side in above-mentioned occupant in above-mentioned zoning wall, which is provided with, makes above-mentioned rear expanding chamber and above-mentioned preceding swollen
The upper communication hole connected between swollen room,
The position of the chest side in above-mentioned occupant in above-mentioned zoning wall, which is provided with, makes above-mentioned rear expanding chamber and above-mentioned preceding swollen
The lower communication hole connected between swollen room,
In the above-mentioned air bag folded from the top to the bottom be located at above-mentioned zoning wall on front side of region according to equidirectional repeatedly
The method of the rolled folding of folding from front direction rear fold, and in the above-mentioned air bag folded from the top to the bottom be located at it is upper
The region on rear side of zoning wall is stated to fold from front direction rear according to the corrugated method for folding of alternate change folding direction.
8. according to side air bag device according to any one of claims 1 to 6, wherein,
At least bottom of above-mentioned air bag is folded from front direction rear to form multiple folding parts, and above-mentioned air bag at least bottom from
Above-mentioned expansion and expansion are carried out in front of rear direction,
The folding part of the lower front part of above-mentioned air bag is turned back as the folding part on the top of expansion direction to in-car side.
9. side air bag device according to claim 7, wherein,
At least bottom of above-mentioned air bag is folded from front direction rear to form multiple folding parts, and above-mentioned air bag at least bottom from
Above-mentioned expansion and expansion are carried out in front of rear direction,
The folding part of the lower front part of above-mentioned air bag is turned back as the folding part on the top of expansion direction to in-car side.
10. side air bag device according to claim 8, wherein,
Above-mentioned air bag is divided into preceding expanding chamber and position on front side of the zoning wall by the zoning wall extended along roughly vertical direction
Rear expanding chamber on rear side of the zoning wall,
Above-mentioned inflator is configured in the bottom of above-mentioned rear expanding chamber,
The position of the chest side in above-mentioned occupant in above-mentioned zoning wall, which is provided with, makes above-mentioned rear expanding chamber and above-mentioned preceding swollen
The lower communication hole connected between swollen room,
The folding part of the lower front part of above-mentioned air bag is turned back with the state intersected with above-mentioned zoning wall.
11. side air bag device according to claim 9, wherein,
Above-mentioned air bag is divided into preceding expanding chamber and position on front side of the zoning wall by the zoning wall extended along roughly vertical direction
Rear expanding chamber on rear side of the zoning wall,
Above-mentioned inflator is configured in the bottom of above-mentioned rear expanding chamber,
The position of the chest side in above-mentioned occupant in above-mentioned zoning wall, which is provided with, makes above-mentioned rear expanding chamber and above-mentioned preceding swollen
The lower communication hole connected between swollen room,
The folding part of the lower front part of above-mentioned air bag is turned back with the state intersected with above-mentioned zoning wall.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013121870A JP6067490B2 (en) | 2013-06-10 | 2013-06-10 | Side airbag device |
| JP2013-121870 | 2013-06-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104228748A CN104228748A (en) | 2014-12-24 |
| CN104228748B true CN104228748B (en) | 2017-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410256727.6A Expired - Fee Related CN104228748B (en) | 2013-06-10 | 2014-06-10 | Side air bag device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6067490B2 (en) |
| CN (1) | CN104228748B (en) |
| DE (1) | DE102014008599A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6278025B2 (en) | 2015-10-26 | 2018-02-14 | トヨタ自動車株式会社 | Side airbag device for vehicle and method for folding side airbag |
| JP6551196B2 (en) | 2015-11-30 | 2019-07-31 | 豊田合成株式会社 | Far-side airbag device and airbag folding method |
| US11104292B2 (en) * | 2017-05-17 | 2021-08-31 | Autoliv Development Ab | Side airbag device |
| EP3778311B1 (en) * | 2018-04-05 | 2023-08-23 | Autoliv Development AB | Side airbag device and vehicle seat |
| JP6973343B2 (en) | 2018-09-26 | 2021-11-24 | 豊田合成株式会社 | Side airbag device |
| WO2020071099A1 (en) * | 2018-10-03 | 2020-04-09 | オートリブ ディベロップメント エービー | Vehicle seat |
| CN112339697B (en) * | 2019-08-07 | 2023-01-13 | 奥托立夫开发公司 | Airbag device |
| KR20210037252A (en) * | 2019-09-27 | 2021-04-06 | 현대모비스 주식회사 | Folding method of side air bag apparatus and side air bag apparatus |
| KR20210123843A (en) * | 2020-04-06 | 2021-10-14 | 현대모비스 주식회사 | Side airbag apparatus |
| WO2021206051A1 (en) * | 2020-04-09 | 2021-10-14 | オートリブ ディベロップメント エービー | Side airbag device |
| JP7294298B2 (en) * | 2020-10-22 | 2023-06-20 | トヨタ自動車株式会社 | passenger protection device |
| CN114379502B (en) * | 2021-12-30 | 2023-05-05 | 宁波均胜汽车安全***有限公司 | Seat side airbag device and bag |
| US11904787B1 (en) * | 2023-01-03 | 2024-02-20 | GM Global Technology Operations LLC | Forward mount compact passenger airbag module with passive gas modulation |
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2013
- 2013-06-10 JP JP2013121870A patent/JP6067490B2/en active Active
-
2014
- 2014-06-10 DE DE102014008599.6A patent/DE102014008599A1/en active Pending
- 2014-06-10 CN CN201410256727.6A patent/CN104228748B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014237411A (en) | 2014-12-18 |
| JP6067490B2 (en) | 2017-01-25 |
| CN104228748A (en) | 2014-12-24 |
| DE102014008599A1 (en) | 2014-12-11 |
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