CN104071235B - Car body fore part arrangement - Google Patents

Abstract

The present invention relates to car body fore part arrangement, and provide a kind of car body fore part arrangement of damage to a vehicle body when improving pedestrian's huckle protective value and alleviating slight degree of crash.The car body fore part arrangement is configured to include：Body construction part（22）, it extends located at the lower section of hood leading section and approximately along overall width direction；And energy absorbing member（100）It is prominent from body construction part to vehicle front side and extends approximately along overall width direction and is formed, and energy is absorbed by being deformed in vehicle collision, wherein both ends of the energy absorbing member on overall width direction are fixed in body construction part and interval is provided between overall width direction central portion and the body construction part（130a）.

Description

Car body fore part arrangement

Technical field

The present invention relates to the car body fore part arrangement of automobile etc., more particularly to improve pedestrian's huckle protective value and The car body fore part arrangement of damage to a vehicle body when alleviating slight degree of crash.

Background technology

For the car body fore part arrangement of the vehicles such as automobile, it is desirable to mitigate pedestrian's in the case where being collided with pedestrian The improvement of pedestrian's protective value of injury.

For the car of in general overall height, because most cases are the thighs near hood leading section with pedestrian Portion is collided, therefore, in order to suppress the injury of huckle, it is desirable to which the construction of energy can be effectively absorbed by being formed in the region.

As the prior art of relevant pedestrian's huckle protection in car body fore part arrangement, such as in patent document 1, Record using the bracket that side protrusion configures forwards of the radiator upper supporting part from the downside for being configured at hood leading section, Energy is absorbed when pedestrian collides and mitigates the technology of injury.

In addition, in patent document 2, record and set the pedestrian formed by metallic plate to protect in front of bumper beam The technology of part.

Patent document 1：（Japan）Patent 2006-264495 publications

Patent document 2：（Japan）Patent 2007-1358 publications

Prior art as described in Patent Document 1, inhaled by installing energy on the holding member held on a heat sink Receive part, it is possible to achieve the improvement of pedestrian's protective value.

But such as when with the slight degree of crash such as other vehicles or wall, touched in energy absorbing member by than pedestrian When hitting in the case of bigger load, because energy absorbing member pushes the damage of body construction part generation body construction part Wound, and cause to repair the increase such as number, expense of needs.

The content of the invention

In view of the above problems, problem of the invention is, there is provided improves pedestrian's huckle protective value and alleviates The car body fore part arrangement of the damage of vehicle body during slight degree of crash.

The present invention solves above-mentioned problem by following solution.

First aspect present invention provides a kind of car body fore part arrangement, and it has：Located at the lower section of hood leading section and Approximately along the body construction part of overall width direction extension, and it is prominent from the body construction part to vehicle front side and substantially Extend to be formed and absorb the energy absorbing member of energy by being deformed in vehicle collision along overall width direction, wherein, Both ends of the energy absorbing member on overall width direction are fixed on the body construction part, and in overall width direction Interval is provided between centre portion and the body construction part.

According to the construction, due to the collision with pedestrian's huckle and energy absorbing member central portion by locality In the case of ground input load, energy absorbing member absorbs energy by arcuately carrying out flexural deformation.In addition, inhaled in energy Receive part overall width direction on the outside of region by locally input load in the case of, by energy absorbing member and vehicle body The linking part of structural member damages by pressure and absorbs energy, so as to suppress to injure.

On the other hand, due to the slight degree of crash with other vehicles etc., comparison of the energy absorbing member throughout overall width direction In the case that wide scope is pushed to rear view of vehicle side, energy absorbing member absorbs energy by arcuately being deformed.This When, because being provided with interval between the central portion and body construction part of energy absorbing member, energy absorption can be prevented Part directly pushes body construction part, so as to suppress the damage of vehicle body.

In addition, in the case where by the flexural deformation of energy absorbing member energy can not be fully absorbed, inhaled by energy The linking part for receiving part and body-side member damages by pressure and absorbs energy, can suppress the load to body-side member transmission, So as to suppress the damage of body-side member.

Second aspect of the present invention be on the basis of the car body fore part arrangement described in first aspect, wherein, in the energy Near the joint portion of absorption piece and the body construction part, provided with the compression load reduced for vehicle fore-and-aft direction The frangible portion of deformation failure intensity.

Accordingly, in the case of being collided near the both ends of pedestrian's huckle and energy absorbing member, frangible portion is passed through Deform and destroy and carry out energy absorption, can suppress to injure.

In addition, in slight degree of crash, deform to destroy by frangible portion is transferred to the negative of body construction part to reduce Lotus, the damage of vehicle body can be suppressed.

Third aspect present invention be on the basis of the car body fore part arrangement described in first or second aspect, wherein, it is described The hinder marginal part of the overall width direction central portion of energy absorbing member is formed to the raised arch of vehicle front side.

Hereby it is possible to the load that load is transfused to when inputting is transmitted along overall width direction and make the center of energy absorbing member Portion is reliably deformed arc-shaped, can reliably obtain the effect above.

On the basis of fourth aspect present invention is the car body fore part arrangement in first~third aspect described in either side, Wherein, what the body construction part for being provided with the energy absorbing member was to maintain cooling device is essentially the frame of rectangle Shape part, the coupling part that the both ends of the energy absorbing member are arranged on the upper edge and side portion of the frame-shaped part are attached Closely.

Accordingly, by installing energy absorbing member in the corner for being used as the more firm frame-shaped part of body construction part, The effect above can more reliably be obtained.

On the basis of fifth aspect present invention is the car body fore part arrangement in first~fourth aspect described in either side, Wherein, bumper beam is provided with the lower section of the energy absorbing member, the leading section of the energy absorbing member is than linking institute The straight line for stating hood leading section and the leading section of the bumper beam is more prominent to vehicle front side and configures.

Accordingly, when being collided with pedestrian, before being disturbed in pedestrian's huckle and hood leading section, by Energy absorbing member reliably carries out energy absorption, can suppress hood leading section and pedestrian's huckle is injured.

On the basis of sixth aspect present invention is the car body fore part arrangement in the first~the 5th aspect described in either side, Wherein, the front face of the energy absorbing member has the concaveconvex shape extended along overall width direction.

Accordingly, even locally being inputted the situation of load due to the collision with pedestrian foot, can also make Load disperses along overall width direction, carries out energy absorption well.

Invention effect

It is as described above, according to the present invention it is possible to which providing improves pedestrian's huckle protective value and alleviates light The car body fore part arrangement of the damage of vehicle body during degree collision.

Brief description of the drawings

Fig. 1 be applied from the oblique upper side of vehicle front side the car body fore part arrangement of the present invention embodiment it is vertical Body figure；

Fig. 2 is the stereogram of the car body fore part arrangement of embodiment from the obliquely downward side of vehicle front side；

Fig. 3 is the top view of the car body fore part arrangement of embodiment viewed from above；

Fig. 4 is the exploded perspective view of the design of part on the energy absorbing member periphery in the car body fore part arrangement for represent embodiment；

Fig. 5 be Fig. 3 V-V portions to regarding sectional view；

Fig. 6 be Fig. 3 VI-VI portions to regarding sectional view；

Fig. 7 is dynamic when the energy absorbing member in the car body fore part arrangement for represent embodiment collides with pedestrian's huckle The schematic diagram of work；

Fig. 8 is the energy absorbing member in the car body fore part arrangement for represent embodiment and moving during opponent vehicle slight degree of crash The schematic diagram of work.

Symbol description

The 10 anterior heat-radiator plates of side frame 20

The radiator upper plate of 21 radiator side plate 22

The intermediate member of 23 radiator lower plate 24

30 support bar receiving portions（ス ト ラ ッ ト resettlement sections）31 upper support bar installed parts

Upper frame before 40（フロントアッパフレーム）41 headlight upper components

The seal of 50 hood 51

60 bumpers, 61 grids of face

The energy absorbing material of 70 bumper beam 71

The bottom plate of 100 energy absorbing member 110

The body of 120 bracket 130

131 front face 131a reinforcements

132 upper surface portion 132a flange parts

The lower face of 132b crest lines 133

133a flange parts

Embodiment

Both ends of the invention by the way that its hinder marginal part to be bent to from the energy absorbing member to the raised arch of vehicle front side Portion, it is arranged on via frangible portion on heat-radiator plate, and interval is set between the central portion and heat-radiator plate of energy absorbing member, To solve to provide the car body fore part arrangement for the damage to a vehicle body for improving pedestrian's huckle protective value and when mitigating slight degree of crash Problem.

［ embodiment ］

Below, the embodiment of the car body fore part arrangement to applying the present invention illustrates.

The body forward structure of the car body fore part arrangement of embodiment automobile such as located at passenger car.

Fig. 1 is the stereogram of the car body fore part arrangement of embodiment from the oblique upper side of vehicle front side.

Fig. 2 is the stereogram of the car body fore part arrangement of embodiment from the obliquely downward side of vehicle front side.

Fig. 3 is the top view of the car body fore part arrangement of embodiment viewed from above.

Fig. 4 is the exploded perspective of the design of part on the energy absorbing member periphery in the car body fore part arrangement for represent embodiment Figure.

Fig. 5 Fig. 3 V-V portions to regarding sectional view.

Fig. 6 be Fig. 3 VI-VI portions to regarding sectional view.

It should be noted that in Fig. 1~Fig. 4, in order that understand easily and eliminate vehicle exterior equipment part or engine, The diagram of subsidiary engine class, draft hitch etc..

Car body fore part arrangement 1 has：Anterior side frame 10, heat-radiator plate 20, support bar receiving portion 30, preceding upper frame 40, hair Motivation cover 50, bumper face 60, bumper beam 70, energy absorbing member 100 etc. and form.

Anterior side frame 10 is the fore-and-aft direction extension approximately along vehicle, and is had a pair in overall width direction separate configuration The main structural member of vehicle body.

Anterior side frame 10 is under division car room and the next door of the engine room of car room front side, i.e., pedal (not shown) Portion is prominent to vehicle front side.

Anterior side frame 10 configures along the left and right of engine room.

Cross sectional shape of the anterior side frame 10 from vehicle front side is the closed cross-section of rectangle.

Heat-radiator plate 20 is mounted in the frame-shaped part of the leading section of anterior side frame 10, for keeping radiator (not shown) The condenser of fuse and conditioner.

The structure with radiator side plate 21, radiator upper plate 22, radiator lower plate 23, intermediate member 24 etc. of heat-radiator plate 20 Into.

Radiator side plate 21 is the part for the left and right side portion for forming heat-radiator plate 20.

Radiator side plate 21 is formed as vertically extending column.

Part on the outside of the overall width direction of pars intermedia on above-below direction is incorporated in anterior side frame 10 by radiator side plate 21 Leading section near overall width direction on the inside of face.

Radiator upper plate 22 is the part between the upper end for linking left radiator side plate 21.

Radiator upper plate 22 is formed as the beam-like extended along overall width direction.

Radiator lower plate 23 is the part between the bottom for linking left radiator side plate 21.

Radiator lower plate 23 is formed as the beam-like extended along overall width direction.

Intermediate member 24 be link along the vertical direction radiator upper plate 22, radiator lower plate 23 overall width direction on centre Beam-like part between portion.

In addition, the central portion on the overall width direction of plate 22 on a heat sink, the leading section of locking hood 50 is installed Hood capture pieces (not shown).

Support bar receiving portion 30 is to accommodate the support bar on McPherson supporting rod type front suspension apparatus (not shown) Part.

Support bar receiving portion 30 is from the part on the outside of the overall width direction at the rear portion of anterior side frame 10 upward and to overall width side Bloat and formed laterally.

Upper support bar installed part 31 located at the upper end of support bar receiving portion 30 supports the upper end of support bar, can Enough around rod central axis.

Preceding upper frame 40 is to cooperate and link on the top and radiator of support bar receiving portion 30 with headlight upper component 41 Part between the side end of plate 22.

Side is prominent and is formed forwards from the top of support bar receiving portion 30 for preceding upper frame 40, and its leading section is not schemed with holding The headlight upper component 41 on the top of the headlight unit shown connects.

The right and left end of headlight upper component 41 from radiator upper plate 22 is protruding outside to overall width direction and is formed.

Hood 50 shown in Fig. 5, Fig. 6 is to can be opened and closed the lid located at the top of engine room.

Hood 50 is installed in vehicle body, and the hinge (not shown) that can be set around rearward end rotates.

Bottom near the leading section of hood 50, caught provided with the hood being installed on radiator upper plate 22 Obtain the striker (not shown) of part locking.

The seal 51 of rubber system is provided with the leading section of hood 50.

Bumper face 60 shown in Fig. 5, Fig. 6 is, for example, the exterior member formed by the resin material of PP systems etc., and is set In the leading section of vehicle.

The upper end of bumper face 60 and the leading section adjoining of hood 50 configure.

In the front face of bumper face 60, the box-shaped body provided with importing traveling wind is grid 61 etc..

The face of the rear view of vehicle side of bumper beam 70 and bumper face 60 to and configure, be approximately along overall width The beam-like part of direction extension.

Bumper beam 70 carries out load transmission in the frontal collision of vehicle.

The rear face of bumper beam 70 is combined via pillar (not shown) with the leading section of anterior side frame 10.

Bumper beam 70 is such as being integrated by will carry out the sheet material that punch forming forms to steel plate to form tool There is the component of closed cross-section.

Such as side is prominent and be arranged on bumper beam 70 forwards for the energy absorbing material 71 formed by foamed material etc. Front face.

Energy absorbing member 100 is prominent from radiator upper plate 22 to vehicle front side and configures, and with pedestrian's thigh Energy absorption is carried out when portion is collided or with deforming during other vehicle slight degree of crash etc..

Energy absorbing member 100 has bottom plate 110, bracket 120, body 130 etc. and formed.

These each parts respectively as by the steel plate plate shape that forms of progress punch forming into then passing through the phase mutual connection such as spot welding Close.

Bottom plate 110 is the plate-shaped member for turning into the base portion for being provided with body 130.

Bottom plate 110 extends approximately along above-below direction and overall width direction, and top is relative to lower stage rock bench side forwards Protrude and formed.

The upper end of bumper face 60 is fixed in the upper end of bottom plate 110.

The right and left end of bottom plate 110 is incorporated into the side end of the radiator upper plate 22 in heat-radiator plate 20 by bracket 120 With the junction surface of the upper end of radiator side plate 21（Corner）.

Bracket 120 configures from the rear face of bottom plate 110 to rear view of vehicle side is prominent.

Body 130 is the front face that side protrudes installed in bottom plate 110 forwards, and energy absorption is substantially carried out in collision Part.

As shown in Fig. 5, Fig. 6 etc., body 130 by the formation such as front face 131, upper surface portion 132, lower face 133 one and Form.

Front face 131 is the face along above-below direction and the extension of overall width direction.

Front face 131 is oppositely disposed relative to the rear face near the upper end of bumper face 60, interval.

In the bottom of front face 131, the reinforcement 131a that oriented vehicle front side protrudes is formed.

Length directions of the reinforcement 131a along body 130（Left and right directions）Substantially formed throughout total length.

Reinforcement 131a leading section is relative to the energy absorption for linking the leading section of hood 50 and bumper beam 70 The straight line L of the leading section of material 71（Reference picture 6）, configured to vehicle front side is prominent.

Upper surface portion 132 protrudes rearward from the upper end of front face 131.

Upper surface portion 132 rearward end formed with flange part 132a prominent upward.

Flange part 132a is fixed on the top of the front face of bottom plate 110 such as by spot welding.

In the pars intermedia of the fore-and-aft direction at the overall width direction both ends of upper surface portion 132, as shown in fig. 6, being configured with upward The raised mode in side makes the crest line 132b that upper surface portion 132 bends and formed.

Crest line 132b is extended essentially along overall width direction.

Crest line 132b is in the case where the effect of body 130 has the compression load of fore-and-aft direction, as causing upper surface portion The frangible portion of 132 buckling deformation works.

Alternatively, it is also possible to be configured to the back side of the connecting portion in front face 131 and upper surface portion 132, benefit (not shown) is set Piece（Double part）, to improve the rigidity of the leading section of energy absorbing member, the load at collision initial stage is increased faster.

Lower face 133 protrudes rearward from the bottom of front face 131.

The rearward end in portion 133 below, formed with flange part 133a prominent downwards.

Flange part 133a is fixed on the bottom of the front face of bottom plate 110 such as by spot welding.

Front face 131 with it is viewed from above when, the slight curvature in a manner of raised to vehicle front side and formed.

In addition, the rear portion of the overall width direction central portion in body 130, formed with making upper surface portion 132, lower face 133 The hinder marginal part spatial portion 130a that side depression overarches and formed forwards.

In spatial portion 130a, upper surface portion 132, the hinder marginal part of lower face 133 relative to the interval of bottom plate 110 and to Configuration.

The crest line 132b of upper surface portion 132 is broken in spatial portion 130a, is configured at its both sides.

Next, the action, action effect during collision to above-described embodiment illustrate.

Fig. 7 is dynamic when the energy absorbing member in the car body fore part arrangement for represent embodiment collides with pedestrian's huckle The schematic diagram of work.

Fig. 7（a）It is the impactor and the state of overall width direction central portion collision of imitation pedestrian's huckle viewed from above Schematic diagram.

Impactor I is formed as imitating the cylindric of the size, quality, hardness of pedestrian's huckle etc..

When impactor I and central portion collide, body 130 retreated by central portion relative to side end and to Spatial portion 130a reduce direction flexural deformation and absorb energy.

At this moment, being formed at the reinforcement 131a of front face 131 has the function that along overall width direction transfer charge, to suppress this The local deformation in body portion 130.

Fig. 7（b）It is the schematic diagram for the state that impactor viewed from above nearby collides with the side end on overall width direction.

Fig. 7（c）It is Fig. 7（b）C-c portions illustrate to sectional view.

When being collided near impactor I and side end, although body 130 also produces flexural deformation, relative to center Portion has on-deformable tendency.

Therefore, in the present embodiment, in the case of near impactor I and side end there occurs collision, such as Fig. 7（c）Institute Show, section deformation is carried out in a manner of buckling deformation upper surface portion 132, lower face 133 and absorbs energy, no matter impactor I With central portion, side end which there occurs collision in the case of, all by caused load substantially it is equal in a manner of adjusted It is whole.

Such as Fig. 7（c）It is shown, it is convex upward with upper surface portion 132 if loading the compression load of the regulation above in fore-and-aft direction Rise, the raised mode buckling deformation downwards of lower face 133.

Upper surface portion 132 makes the load reduction of generation buckling deformation by setting crest line 132b, and with to bracket 120, radiating The mode of the load reduction of the grade transmission of device plate 20 adjusts.

Fig. 8 is the energy absorbing member in the car body fore part arrangement for represent embodiment and moving during opponent vehicle slight degree of crash The schematic diagram of work.

Fig. 8 is anterior barrier B and the center in the overall width direction of body 130 of other vehicles of imitation viewed from above There occurs the schematic diagram of the state of head-on crash in portion.

Wider scopes of the barrier B on overall width direction loads load to the front face 131 of body 130.

Thus, body 130 is inhaled by central portion to the direction flexural deformation of side end retrogressing, spatial portion 130a diminutions Receive energy, in addition, using with Fig. 7（c）The same section deformation of shown example and absorb the energy not absorbed by the flexural deformation Amount.

At this moment, bottom plate 110, bracket 120 are transferred to from the side end of 132, lower face 133 above body 130 Load, be set as consider do not make heat-radiator plate 20 be deformed destroy and set setting below.

It is as described above, according to this embodiment, it can obtain following effect.

（1）By the way that the hinder marginal part of body 130 is formed into arch to form spatial portion 130a between bottom plate 110 at it, Can be when being collided with pedestrian's huckle or with opponent vehicle slight degree of crash, in the direction that the central portion of body 130 retreats Upper flexural deformation and carry out energy absorption.

At this moment, because body 130 will not push the other parts of the rear side located at hood capture pieces etc., therefore The damage of other parts can be prevented.

（2）In the case where just with the flexural deformation of body 130 sufficient energy absorption can not be carried out, by setting Be set to make upper surface portion 132, lower face 133 side end near region occur buckling deformation structure, can be in body 130 Side end effectively carry out energy absorption nearby and when the huckle of pedestrian collides or during slight degree of crash.

In addition, thus, it is extreme prevented also from load even if the position of the huckle collision of pedestrian changes along overall width direction Ground changes, and can improve pedestrian's protective value.

（3）By setting the reinforcement 131a extended along overall width direction in the front face 131 of body 130, even step The situation that passerby's huckle locally collides, load can also be made to disperse in overall width direction more efficiently to carry out energy Absorb.

（Variation）

The present invention is not limited to embodiments illustrated above, can carry out various deformations or change, these deformations Or change is all in the technical scope of the present invention.

For example, forming the shape of each part of car body fore part arrangement, construction, material, preparation method etc. is not limited to above-mentioned implementation Example, can suitably be changed.

Claims (7)

1. a kind of car body fore part arrangement, including：

Body construction part, it extends located at the lower section of hood leading section and along overall width direction, and

Energy absorbing member, it is prominent from the body construction part to vehicle front side and extends and shape along overall width direction Into, and by being deformed in vehicle collision to absorb energy,

Wherein, both ends of the energy absorbing member on overall width direction are fixed in the body construction part, and in car Interval is provided between cross direction central portion and the body construction part,

The pars intermedia of the fore-and-aft direction at the overall width direction both ends above the body of the energy absorbing member, configuration There is the crest line for bending the upper surface portion in a manner of projection upward and being formed, the crest line prolongs essentially along overall width direction Setting is stretched, the crest line causes the upper surface portion in the case where body effect has the compression load of fore-and-aft direction Buckling deformation.

2. car body fore part arrangement as claimed in claim 1, wherein, in the energy absorbing member and the body construction part Joint portion near, set the crest line as reduce for vehicle fore-and-aft direction compression load deformation failure intensity it is crisp Weak portion.

3. the car body fore part arrangement as described in claim 1 or claim 2, wherein, the overall width side of the energy absorbing member Formed to the hinder marginal part of central portion to the raised arch of vehicle front side.

4. the car body fore part arrangement as described in claim 1 or claim 2, wherein, the energy absorbing member is installed The body construction part is to maintain the rectangular-shaped frame-shaped part of cooling device,

The both ends of the energy absorbing member are installed near the connecting portion of upper edge and side portion of the frame-shaped part.

5. the car body fore part arrangement as described in claim 1 or claim 2, wherein, in the lower section of the energy absorbing member Provided with bumper beam,

Leading section of the leading section of the energy absorbing member than linking the hood leading section and the bumper beam Straight line it is more prominent to vehicle front side and configure.

6. the car body fore part arrangement as described in claim 1 or claim 2, wherein, the front face of the energy absorbing member With the concaveconvex shape extended along overall width direction.

7. the car body fore part arrangement as described in claim 1 or claim 2, wherein, before the energy absorbing member The back side of the connecting portion of portion and upper surface portion sets multiplication part, to improve the rigidity of the leading section of the energy absorbing member.