The content of the invention
It is an object of the invention to provide a kind of pedestrian airbag apparatus, inflator work can be suppressed and air bag is expanded
When retainer housing width expansion.
The pedestrian airbag apparatus of first invention has:Support member, the upper shelf at the rear portion in engine room is located at
Between the vehicle-body-side component of left and right;Retainer housing, is configured at the upside of the support member, extends along the support member, and install
In the support member;Pedestrian airbag, is configured in the retainer housing with being folded;And inflator, for making the air bag swollen
Swollen, the pedestrian airbag apparatus is characterised by, the retainer housing has the front surface wall towards vehicle front, before this
In the way of the above-below direction of surface wall, with towards vehicle body fore-and-aft direction protrude and along retainer shell length direction extend stretching
Go out portion.
In the one side of the first invention, the front surface wall has:Constitute the lower part wall of the bottom of the front surface wall;From
The extension that the upper limb of the lower part wall extends forwards;And erected upward from the leading edge of the extension and constitute the preceding table
The top wall on the top faced the wall and meditated.
In the another aspect of the first invention, the front surface wall has:Constitute the lower part wall of the bottom of the front surface wall;
The extension rearward extended from the upper limb of the lower part wall;And erect and constitute before this upward from the trailing edge of the extension
The top wall on the top of surface wall.
In the another aspect of the first invention, the extension is the bellying of the shape bloated towards front.
The pedestrian airbag apparatus of second invention has:Support member, the upper shelf at the rear portion in engine room is located at
Between the vehicle-body-side component of left and right;Retainer housing, is configured at the upside of the support member, extends along the support member, and install
In the support member;Pedestrian airbag, is configured in the retainer housing with being folded;And inflator, for making the air bag swollen
Swollen, the pedestrian airbag apparatus is characterised by, the retainer housing has the front surface wall and direction towards vehicle front
The rear surface wall at vehicle body rear, the retainer housing is linked by bracket with the support member, and the bracket has:It is bonded to
The longitudinal slice of the front surface wall or rear surface wall;It is connected and is fixed on the upper surface of the support member with the lower edge of the longitudinal slice
Transversal flaps;And the flange erected from the vehicle-body width direction both sides of the longitudinal slice and transversal flaps, in the longitudinal slice and transversal flaps
The cross-shaped portion height that erects that nearby flange is erected from transversal flaps more leans on longitudinal slice side bigger.
In the one side of the second invention, the front surface wall has:Constitute the lower part wall of the bottom of the front surface wall;From
The extension that the upper limb of the lower part wall extends forwards;And erected upward from the leading edge of the extension and constitute the front surface wall
Top top wall, the longitudinal slice of the bracket is bonded to the top wall.
The pedestrian airbag apparatus of 3rd invention has:Support member, the upper shelf at the rear portion in engine room is located at
Between the vehicle-body-side component of left and right;Retainer housing, is configured at the upside of the support member, extends along the support member, and install
In the support member;Pedestrian airbag, is configured in the retainer housing with being folded;And inflator, for making the air bag swollen
Swollen, the pedestrian airbag apparatus is characterised by, the retainer housing has the front surface wall and direction towards vehicle front
Among the rear surface wall at vehicle body rear, the front surface wall and rear surface wall at least front surface wall by bracket with the supporting part
Part links, and multiple brackets are configured with the central portion of the vehicle body left and right directions of the retainer housing and its neighbouring region, should
At least one in bracket is configured near the central portion.
In the 3rd invention, it is preferred that the length for being configured with the vehicle body left and right directions in the region of the bracket is
The length of vehicle body left and right directions near less than the 50% of the total length of the vehicle body left and right directions of retainer housing, the central portion is
Less than the 20% of the total length of the vehicle body left and right directions of retainer housing.
In addition, in the 3rd invention, it is preferred that at least front surface wall is above and below it among front surface wall and rear surface wall
There is the extension for protruding and extending along retainer shell length direction towards vehicle body fore-and-aft direction in the way in direction.
The pedestrian airbag apparatus of 4th invention has:Support member, the upper shelf at the rear portion in engine room is located at
Between the vehicle-body-side component of left and right;Retainer housing, is configured at the upside of the support member, extends along the support member, and install
In the support member;Pedestrian airbag, is configured in the retainer housing with being folded;And inflator, for making the air bag swollen
Swollen, the pedestrian airbag apparatus is characterised by, the retainer housing has the front surface wall and direction towards vehicle front
The rear surface wall at vehicle body rear, at least one party in the front surface wall and rear surface wall, which is provided with along vehicle-body width direction, to be extended
Reinforcing plate, the reinforcing plate has the main leaf overlapping with the front surface wall or rear surface wall and the standing piece that is erected from the main leaf.
In the present invention, the shaft-like inflator can also be provided with along the rear surface wall of the retainer housing.Separately
Outside, in the present invention, the retainer housing possesses directed inclined upwardly beveled walls between bottom surface and rear surface wall, can also
The shaft-like inflator is provided with along the beveled walls.
The pedestrian airbag apparatus of the present invention is preferably disposed on the front region of windshield lower end.Pedestrian airbag is to cover
The mode of at least bottom of lid windshield and A posts expands.
Invention effect
In the pedestrian airbag apparatus of the first invention, due to before the front surface wall of retainer housing is provided with vehicle body
The extension that side protrudes and extended along retainer shell length direction, therefore, the intensity and rigidity of retainer housing front faces wall
Uprise, it is suppressed that the expansion of the width of retainer housing when air bag expands.
In the pedestrian airbag apparatus of the second invention, to being bonded in the front surface wall or rear surface wall of retainer housing
Retainer housing support member fixation bracket intensity and rigidity uprise.That is, the flange of bracket is in the longitudinal direction of bracket
The intersection of piece and transversal flaps is uprised, thus, and the intensity and rigidity of the intersection of bracket are uprised.So, it is strong by making
Degree and the high bracket of rigidity are bonded in front surface wall or rear surface wall, the front surface wall of retainer housing, rear surface wall it is strong
Degree and rigidity are uprised, it is suppressed that the width expansion of retainer housing when air bag expands.
In the 3rd invention, intensity and rigidity near the center of the vehicle body left and right directions of retainer housing are uprised, and are suppressed
The width expansion of retainer housing during air bag expansion.
In the 4th invention, reinforcing plate is installed in front surface wall or rear surface wall, the front surface wall of retainer housing, after
The intensity and rigidity of surface wall are uprised, it is suppressed that the width expansion of retainer housing when air bag expands.
Further, since in the case where being provided with shaft-like inflator along retainer shell inner surface, the inflator it is firm
Property it is higher, therefore, the intensity of retainer housing and rigidity increase.
If setting shaft-like inflator, the intensity of rear surface wall and rigidity increase along the rear surface wall of retainer housing.But
It is that the operation that shaft-like inflator is installed on retainer shroud rear face wall is not easy to carry out.
If provided with beveled walls and setting shaft-like inflation along the beveled walls between the bottom surface of retainer housing and rear surface wall
Machine, then be favorably improved the intensity and rigidity of rear surface wall, and the installation exercise of shaft-like inflator also becomes easy.
Embodiment
Hereinafter, embodiment is illustrated referring to the drawings.In the following description, it is front and rear to represent the front and rear of vehicle body.
Fig. 1~3 represent the pedestrian airbag apparatus 10 of embodiments of the present invention.The pedestrian airbag apparatus 10 is starting
The upper shelf at the rear portion in machine room, which is located at, to be respectively arranged on the left of vehicle body and between the vehicle-body-side component 11,11 on right side.It is used as the vehicle body
Side member, for example, can enumerate shock absorber casing, but not limited to this.
The internal thread hole for being used for fixing pedestrian airbag apparatus 10 is provided with the upper surface of vehicle-body-side component 11.
Pedestrian airbag apparatus 10 has support member 20, the retainer housing 30 being arranged in the support member 20, is somebody's turn to do
Air bag 40 and inflator 50 in retainer housing 30, the lid 60 being covered on retainer housing 30 etc..
Support member 20 has:Extended in the way of crossing between vehicle-body-side component 11,11 in vehicle-body width direction
The main bridge portion 21 of strip;It is connected respectively with the side of length direction two in the main bridge portion 21 and is inclined in the lower mode in more forward side
Oblique lower vertical portion 22;And the installation sheet portion 23 substantially horizontally extended respectively from the front in each lower vertical portion 22.The installation sheet portion
23 are overlapped in vehicle-body-side component 11.Inserted in installation sheet portion 23 provided with the bolt overlapping with the internal thread hole of vehicle-body-side component 11
Hole 24.In this embodiment, provided with two bolt insertion holes 24 in each installation sheet portion 23.
The front side extended on the length direction in main bridge portion 21 and the edge of rear side are respectively at a predetermined interval provided with interior
Screwed hole 25.
Main bridge portion 21 is illustrated as tabular, but is actually additionally provided with the bending sections such as rib, ripple (omitting diagram), it is possible to increase
Intensity and rigidity.
Retainer housing 30 is the long box-like extended along the upper surface of support member 20, with bottom surface 31, respectively from the bottom
Front surface wall 32 and rear surface wall 33 that the edge of the vehicle front side in face 31 and the edge of vehicle body rear side are erected.Pin piece portion 35
The two ends of the length direction of retainer housing 30 are bonded to by welding etc..The pin piece portion 35 is formed down towards the side of vehicle body
Slope, being extended from its front has approximate horizontal stator portion 36.Bolt insertion hole 37 is provided with the stator portion 36.
In this embodiment, the front surface wall 32 of retainer housing 30 has the lower part wall that the leading edge from bottom surface 31 is erected
What 32a, the extension 32b extended forwards from lower part wall 32a upper end and the leading edge from extension 32b were erected upward
Top wall 32c.Extension 32b is substantially vertical relative to lower part wall 32a and top wall 32c difference.Extension 32b fore-and-aft direction
Width be preferably front surface wall 32 height 2~50%, particularly preferably 2~10% or so.Extension 32b is preferably set to
The height of front surface wall 32 20~80%, be particularly preferably set to 40~60% height.
Bracket 70 is bonded to lower part wall 32a preceding surface by welding etc..As shown in figure 3, bracket 70 have longitudinal slice 71,
Transversal flaps 72, flange 73 and the bolt insertion hole 74 in transversal flaps 72.Longitudinal slice 71 is overlapping with top wall 32a, passes through point
Weldering is bonded on top wall 32a.Transversal flaps 72 extend forwards from the lower edge of longitudinal slice 71, the shape of bracket 70 from the side
Shape substantially L-shaped shape.Transversal flaps 72 be located at than retainer housing 30 bottom surface 31 slightly by bottom position.
Flange 73 is erected forwards from the right and left of longitudinal slice 71, and is stood upward from the right and left of transversal flaps 72
Rise.Flange 73 is continuously provided from longitudinal slice 71 to transversal flaps 72.Near the intersection of longitudinal slice 71 and transversal flaps 72,
Flange 73 is provided with and erects height more rearward bigger enhanced portion 73a from what transversal flaps 72 were erected upward.Should by setting
Enhanced portion 73a, the intensity and rigidity of bracket 70 are uprised, and particularly the flexural rigidity in the direction that 71 pairs of longitudinal slice lodges forwards becomes
Greatly.
Air bag 40 is configured in retainer housing 30 with being folded.Inflator 50 is configured with the inside of the air bag 40.
In the embodiment, inflator 50 is generally cylindrical shaped shaft-like, is configured along rear surface wall 33.Inflator 50 is in rear surface wall
The center of 33 length direction nearby extends in length direction.
Many studs are provided projectingly from inflator 50 towards vehicle body rear.The stud insertion air bag 40 and rear table
Face the wall and meditate 33.By tightening nut on the stud, inflator 50 and air bag 40 are fixed in rear surface wall 33.In Fig. 2 not
Stud and nut are illustrated, but it is identical with Fig. 6 described later stud 51 and nut 52.
Lid 60 have the upper surface of covering retainer housing 30 main board portion 61 and from the front of the main board portion 61 and after
The front panel portion 62 and rear plate portion 63 stood under side.Tear line 61a is provided with main board portion 61.
The front panel portion 62 of lid 60, rear plate portion 63 are respectively in the mode overlapping with the outer surface on the top of retainer housing 30
It is installed on retainer housing 30, and is fixed on by rivet 64 on retainer housing 30.
Retainer housing 30 is configured at the upside of support member 20.The transversal flaps 72 of bracket 70 and the upper table of support member 20
Face is abutted, and bolt 77 is screwed into internal thread hole 25 by bolt insertion hole 74.Thus, retainer housing 30 is assembled in support member
It is on 20 and integrated.Now, the stator portion 36 extended from foot 35 is overlapping with the installation sheet portion 23 of support member 20, fixed
The bolt insertion hole 37 in piece portion 36 is overlapping with the bolt insertion hole 24 of a side in installation sheet portion 23.
So, support member 20 is integrated with possessing the retainer housing 30 of air bag 40 and inflator 50, constitutes pedestrian and uses
Airbag apparatus 10.
The pedestrian airbag apparatus 10 is configured in the way of being set up between vehicle-body-side component 11,11, and bolt 80 passes through spiral shell
Bolt inserting hole 37,24 and the internal thread hole for being screwed into bodywork component 11.In addition, bolt 81 is by the bolt insertion hole 24 of the opposing party
It is screwed into the internal thread hole of bodywork component 11.Thus, pedestrian airbag apparatus 10 is fixedly installed on vehicle body.
In the case where the automobile for possessing the pedestrian airbag apparatus 10 so constituted and pedestrian etc. contact, the work of inflator 50
Make, air bag 40 makes lid 60 be ftractureed along tear line 61a, same with Fig. 7, is expanded by the rear of hood along vehicle body outside surface
Expansion.
When the air bag 40 expands, exerted a force in the way of making width expansion to retainer housing 30 from air bag 40.Particularly
Larger power is applied around to the length direction central portion of retainer housing 30.
In this embodiment, protruded simultaneously due to being provided with vehicle front in the front surface wall 32 of retainer housing 30
The extension 32b extended along retainer shell length direction, therefore, the intensity and rigidity of front surface wall 32 are uprised, and suppress air bag
The broadening of retainer housing 30 during 40 expansion.
In this embodiment, it is fixed with bracket 70 on the lower part wall 32a of front surface wall 32.In the flange of the bracket 70
73 are provided with enhanced portion 73a, and the bending that longitudinal slice 71 pours into the direction of the side of transversal flaps 72 rigidly becomes big.Therefore, from will be swollen
Swollen air bag 40 fallen before applying to front surface wall 32 direction power when, suppress the fascinating forwards of front surface wall 32, suppress to keep
The broadening of device housing 30.
In this embodiment, the lower part wall 32a of front surface wall 32 intensity and rigidity increase is made by bracket 70, and such as
Above-mentioned such from the position provided with extension 32b, by the pressing force from air bag 40, the top wall 32c of front surface wall 32 will
Deformed in the way of being poured into forwards by shown in the arrow theta such as Fig. 2.In this case, with overall the past of front surface wall 32
Surface wall 32 is compared with the situation that the intersection of bottom surface 31 is poured into forwards, the amount of movement L of the upper end of front surface wall 32 forwards
It is smaller.
In the retainer housing 30 of the pedestrian airbag apparatus 10, air bag 40 expand when broadening direction deflection compared with
Small, the influence to circumferential component is small.Because shaft-like inflator 50 is secured by bolts in the rear surface wall of retainer housing 30
On 33, therefore, the deformation at the rear of rearward surface wall 33 is less.
In figs. 1 to 3, the longitudinal slice 71 of bracket 70 is bonded on lower part wall 32a, but it is also possible to such as Fig. 8 pedestrian's gas
Bag apparatus 10D is bonded on top wall 32c like that.
In the above-described embodiment, extension 32b stretches out forwards from lower part wall 32a upper end, but it is also possible to such as Fig. 9
Pedestrian airbag apparatus 10E rearward stretches out like that.In this case, top wall 32c is stood upward from projecting piece 32b trailing edge
Rise.
In the present invention, as shown in Figure 11 pedestrian airbag apparatus 10 ', bracket 70 can also be only configured at guarantor
The central portion of the vehicle body left and right directions of holder housing 30 and its near.
In fig. 11, the length L of the vehicle body left and right directions in the region present in bracket 70 is preferably retainer housing 30
Less than the 50% of the total length of vehicle body left and right directions, such as preferably 30~50%, particularly preferably 40~50%.
Preferably, at least one in multiple brackets 70 is configured at the center of the vehicle body left and right directions of retainer housing 30
Near portion.Specifically, it is preferred that on the vehicle body left and right directions of retainer housing 30, positioned at apart from retainer housing 30
Center deviation retainer housing 30 total length ± 10% in the range of.That is, the vehicle body right and left of the bracket 70 of the central portion
Upward existence range is less than 20% scope of the total length of retainer housing 30.
Fig. 4~6 are pedestrian airbag apparatus 10A, 10B, 10C for representing another embodiment of the present invention sectional view.
In addition, eliminating the diagram of support member 20 in Fig. 4~6.
In Fig. 4 pedestrian airbag apparatus 10A, provided with bellying 80 forwards in front surface wall 32.The bulging
Portion 80 extends in the way of the short transverse of front surface wall 32 on retainer housing 30A length direction.Preferably
In, bellying 80 possess upside extension 81, downside extension 82 and connect these up and down extension 81,82 leading edge it
Between preceding surface 83 "U" cross-sectional shape.Pedestrian airbag apparatus 10A other structures are used with the pedestrian of Fig. 1~3
Airbag apparatus 10 is identical, and same reference is represented with a part.
Due to being provided with bellying 80 in front surface wall 32 also by pedestrian airbag apparatus 10A, therefore, suppress air bag
The broadening of retainer housing 30A during 40 expansion.
In Fig. 4, preceding surface 83 be formed as with the substantially vertical tabular of extension 81,82 up and down but it is also possible to be,
Preceding surface 83 is formed as semicircular sectional shape, and bellying is integrally formed into horizontal U-shaped cross sectional shape.Bellying integrally also may be used
To be formed as other cross sectional shapes such as semicircular sectional shape, horizontal V-shaped cross sectional shape.
In Fig. 5 pedestrian airbag apparatus 10B, riveting is passed through respectively in the outer surface of front surface wall 32 and rear surface wall 33
Follow closely the set such as 87 or spot welding reinforcing plate 85,86.Reinforcing plate 85,86 extends on the length direction of retainer housing 30 respectively.Plus
Erected forwards for the upper limb with first 85a extended along top wall 32c and from first 85a second of strong plate 85
85b " L " cross-sectional shape.Erect the 3rd etc. other of the lower edge that can also possess from first 85a.
Reinforcing plate 86 has the first piece 86a overlapping with rear surface wall 33, distinguished from the upper limb and lower edge of first 86a
The 4th 86d that second rearward erected and the 3rd 86b, 86c and the trailing edge from the 3rd 86c hang down downwards.Also
Erect upward the 5th etc. other of the trailing edge that can possess from second 86b.
Pedestrian airbag apparatus 10B other structures are identical with pedestrian airbag apparatus 10, and same reference is represented
With a part.
Suppress the broadening of the retainer housing 30 when air bag 40 expands also by pedestrian airbag apparatus 10B.In Fig. 4 institutes
Same reinforcing plate 85,86 can also be set in the pedestrian airbag apparatus 10A shown.
In Figure 5 using there is rivet 64,87, but as shown in Figure 10 pedestrian airbag apparatus 10F, it can also pass through
The rear plate portion 63 and reinforcing plate 86 of lid 60 are installed on retainer housing 30 by rivet 87.Front panel portion 62 and reinforcing plate 85 can also
Retainer housing 30 is installed on by general rivet.
In Fig. 6 pedestrian airbag apparatus 10C, retainer housing 30C possesses between bottom surface 31 and rear surface wall 33
Beveled walls 34.Inflator 50 is configured along the beveled walls 34.Beveled walls 34 are so that relative to bottom surface 31, more higher mode is inclined rearward
Tiltedly.The angle of inclination is preferably 30~60 ゜, particularly preferably 40~50 ゜ or so.Bolt insertion hole is provided with the beveled walls 34
(omitting diagram).The bolt insertion hole is on retainer housing 30C length direction at spaced intervals provided with multiple (in the implementation
It is two in mode).
From the side of inflator 50, two bolts 51 are equipped with spaced intervals on the length direction of inflator 50.Spiral shell
Bolt 51 is erected on the direction vertical with the axis of inflator 50.Each bolt 51 passes through air bag 40 and retainer housing 30C respectively
Bolt insertion hole and it is prominent to outside retainer housing 30C, nut 52 is screwed into each bolt 51.Thus, inflator 50 is fixed
In in beveled walls 34.
Due to making the bolt 51 of inflator 50 pass through relative to the bolt insertion hole of the beveled walls 34 from oblique upper, therefore,
Compared with the situation provided with bolt insertion hole in rear surface wall 33, it can make bolt 51 easily by bolt insertion hole, hold
Easily carry out the installation exercise of air bag 40 and inflator 50 to retainer housing 30C.Due to filling for bar-shaped high intensity and high rigidity
Mechanism of qi 50 is installed in beveled walls 34, therefore, and the intensity and rigidity of beveled walls 34 are higher.Therefore, the intensity of rear surface wall 33 and
Rigidity along bottom surface 31 than setting the situation of inflator 50 high.
Pedestrian airbag apparatus 10C other structures are identical with pedestrian airbag apparatus 10B, and same reference is represented
With a part.
Also by pedestrian airbag apparatus 10C, suppress the broadening of retainer housing 30C when air bag 40 expands.
In this embodiment, beveled walls 34 are formed as tabular, but it is also possible to be formed as circular section shape.At this
In embodiment, stud 51 is directly arranged in inflator 50, but in the case where inflator is held in into retainer, can also
Stud is provided with retainer.
In the pedestrian airbag apparatus 10 shown in Fig. 1~4,10A can also be retainer housing provided with beveled walls and
The structure of inflator is set in the beveled walls.
Above-mentioned embodiment is one of the present invention, and the present invention can also be the form beyond diagram.For example, above-mentioned
In embodiment, the main board portion 61 of lid 60 is illustrated substantially in parallel with the bottom surface 31 of retainer housing 30, but main board portion 61
Can be so that more lower mode is tilted rearward.Shape when air bag 40 expands can also be the shape beyond Fig. 7.
Using specific mode, the present invention is described in detail, but is not departing from the intent and scope of the present invention
In the case of can carry out various changes, this is self-evident to those skilled in the art.
The Japanese patent application 2014-229005 that the application was proposed based on November 11st, 2014, and helped by reference
Use its entire content.
Description of reference numerals
10th, 10 ', 10A~10F pedestrian airbag apparatus
20 support members
30th, 30A, 30C retainer housing
31 bottom surfaces
32 front surface walls
32b extensions
Surface wall after 33
40 air bags
50 inflators
60 lids
70 brackets
73 flanges
80 bellyings