CN101020441A - Vehicle front end structure - Google Patents

Abstract

The invention discloses a vehicle front part structure, and is to prevent a radiator grid from bending downwards due to the weight thereof in the vehicle front part structure with the large-scale radiator grid, which is tilted with the lower part ahead of the upper position and looks approximately cambered from above. A grid supporting component (32) is arranged on a central support (31) and integrated with the central support (31). The central support (31) bridging between the upper part (2a) of a radiator fixation frame and a bumper beam (5). The grid supporting component (32) is formed by folding a component, the section plane of which is rectangular with the left side open. The grid supporting component (32) consists of a coupling section (32a) coupled to the installation part (31b) of the central support (31) on the bumper beam; an elbow (32b) extending upwards and forwards from the coupling section (32a); a connecting part (32c) extending forwards from the front end of the elbow (32b) and supporting the radiator fixation frame(1) from below; and a guide part used to facilitate assembly of the radiator grid (1) onto the connecting part (32c).

Description

Vehicle front body structure

Technical field

The present invention relates to vehicle front body structure, particularly the supporting construction of radiator grid.

Background technology

Up to now, front bumper upside at front part of vehicle is provided with radiator grid (frontgrill) as air extractor vent, and as the mounting structure of this radiator grid, for example, open shown in the flat 11-314552 communique as the spy, by the radiator fixed frame top (shroud upper) that keeps radiator usefulness such as (radiator) when slinging in the top and supports radiator grid, by the bumper/spoiler cover of front bumper from the structure of supported underneath radiator grid by well-known.In such structure, be out of shape significantly in order not make the lower bumper/spoiler cover of rigidity, mainly sling and support above-mentioned radiator grid by above-mentioned radiator fixed frame top.

In addition, not as above-mentioned structure, to be installed in for the radiator grid of another parts on the radiator fixed frame, but open shown in the 2001-82146 communique, radiator grid will be formed on structure on the radiator fixed frame also by as everyone knows as the spy.But, in such structure, owing to can bring restriction,, generally be that radiator grid and radiator fixed frame are shaped therefore as described in the above-mentioned patent documentation 1 to the design of radiator grid etc., again this radiator grid is installed on the radiator fixed frame.

But, in full size vehicle etc., because radiator grid is also bigger, therefore be that lower position is when more forward than upper position when making the inclination of this radiator grid, as above-mentioned structure in the past, only sling and support radiator grid from the top, be the weight that can not support this radiator grid fully.Bigger load is applied to from the lower front bumper of the rigidity of this radiator grid of supported underneath.

Thereby, make above-mentioned bumper/spoiler cover can not bear the weight of radiator grid, and produce distortion towards the below, cause above-mentioned radiator grid sagging towards the below.Particularly since generally above-mentioned radiator grid is formed from above see, be converx roughly circular-arc at vehicle front, therefore with by near the both ends of the vehicle-width direction that supports the stronger vehicle frame of rigidity, compare, near the central authorities of vehicle-width direction more easily towards the below bending.

And, if so only be that the part of above-mentioned radiator grid is sagging significantly towards the below, then can this radiator grid, with car bonnet above it between the factitious gap of generation, diminish the outward appearance of front part of vehicle.

Summary of the invention

The objective of the invention is to: tilt more forwardly than upper position having, see in the vehicle front body structure that roughly forms circular-arc large-scale radiator grid, prevent because of the deadweight of this radiator grid bending towards the below from above for lower position.

According to a side of the present invention, vehicle front body structure comprises: the front bumper cover; Be configured in the radiator fixed frame (shroud panel) at above-mentioned front bumper cover rear; Tilting is the radiator grid that lower position is more forward than upper position, this top is supported by above-mentioned front bumper cover by above-mentioned radiator fixed frame support and bottom; And be installed on the above-mentioned radiator fixed frame and from the radiator grid support component of the above-mentioned radiator grid of supported underneath.

According to this structure, the radiator grid more forward than upper position owing to tilt, that top is supported by the front bumper cover by the support of radiator fixed frame, bottom for lower position, from supported underneath by the radiator grid support component that is installed in this radiator fixed frame, therefore can prevent that this radiator grid is because of the deadweight phenomenon sagging towards the below.

In said structure, also comprise: be positioned at above-mentioned radiator fixed frame top radiator fixed frame top (shroud upper), be positioned at than above-mentioned radiator fixed frame top by the position of below and about the front end of front side member (front side frame) between the center beam of bumper that serves as a connection and the metallic center rest (center stay) that between above-mentioned radiator fixed frame top and above-mentioned center beam of bumper, serves as a connection.The top of above-mentioned radiator grid is by above-mentioned radiator fixed frame upper support, and the bottom is supported by above-mentioned bumper/spoiler cover, and the inclination of this radiator grid is that this lower position is more forward than upper position.Above-mentioned radiator grid support component is to form by the grid support portion is arranged on above-mentioned center rest integratedly, and this grid support portion comprises that the base end part that is connected this center rest and the downside from this base end part towards above-mentioned radiator grid extend the contact support portion of coming from this radiator grid of supported underneath.

Because radiator grid from supported underneath by the grid support portion of extending from center rest, therefore can prevent that this radiator grid is because of the deadweight phenomenon sagging towards the below.And because above-mentioned grid support portion is arranged on the center rest integratedly, the therefore situation that does not have the assembled portion number of packages to increase does not allow the phenomenon of assembling operation variation of front part of vehicle.

And, preferably vehicle front body structure comprises bumper/spoiler retention tab (bumper retainer), at least a portion of this bumper/spoiler retention tab is configured to be bonded on the back side of above-mentioned front bumper cover, the bottom is fastened on above-mentioned front bumper cover, top contacts from the below with respect to above-mentioned radiator grid, supports this radiator grid.Above-mentioned grid support portion is set to the top that above-mentioned contact support portion is bonded on above-mentioned bumper/spoiler retention tab, supports this bumper/spoiler retention tab.

So, owing to can improve the rigidity of above-mentioned front bumper cover, even the therefore load that is applied with radiator grid also can positively suppress this front bumper cover phenomenon sagging towards the below by the bumper/spoiler retention tab.

And, be provided with a plurality of longitudinal ribs (rib) and cradle portion on the surface of above-mentioned bumper/spoiler retention tab, these a plurality of longitudinal ribs towards front and back to extending and being arranged side by side on the vehicle-width direction, touch the back side of above-mentioned front bumper cover, this cradle portion is linking together between the rearward end with this each longitudinal rib on the vehicle-width direction.Above-mentioned radiator grid from supported underneath by above-mentioned cradle portion.

So, can be under the situation of the weight that does not extremely increase above-mentioned bumper/spoiler retention tab, improve the rigidity of this bumper/spoiler retention tab by a plurality of longitudinal ribs, can more positively support front bumper cover and radiator grid.And, because above-mentioned a plurality of longitudinal ribs interconnect by the cradle portion of extending in the vehicle-width direction, therefore can improve the rigidity of this each longitudinal rib, thereby, the rigidity of above-mentioned bumper/spoiler retention tab can further be improved.

And, in said structure, preferably above-mentioned center beam of bumper is arranged on than forward position, above-mentioned radiator fixed frame top, the position that above-mentioned center rest is configured to center beam of bumper side installation portion is more forward than the position of radiator fixed frame upper side installation portion, and above-mentioned grid support portion is extended towards the top near the center beam of bumper side installation portion of above-mentioned center rest.

So, because extend towards the top near the center beam of bumper side installing component of center rest above-mentioned grid support portion, come from supported underneath radiator grid, so this grid support portion accepts load at the higher compression direction of rigidity, can more positively support above-mentioned radiator grid.And, because above-mentioned grid support portion center beam of bumper one side from the center rest that extends to center beam of bumper side installation portion towards vehicle front from above-mentioned radiator fixed frame upper side installation portion, that approach above-mentioned radiator grid most extends to the downside of this radiator grid, therefore the length of this grid support portion can be shortened, the rigidity of this grid support portion can be improved.Thereby, can improve the stability of strutting system that above-mentioned grid support portion is supported radiator grid.

And, also supplemental support portion can be arranged on above-mentioned center rest integratedly, this supplemental support portion links together the radiator fixed frame upper side installation portion of the contact support portion in the above-mentioned grid support portion and part between the base end part and above-mentioned center rest.Because by such supplemental support portion is set, grid support portion and center rest are not only linked together near the center beam of bumper side installation portion of this center rest downside, and both are also linked together at upside, therefore can positively prevent this grid support portion with respect to center rest in the vehicle fore-and-aft direction phenomenon of displacement significantly.That is, can improve the rigidity of the fore-and-aft direction of above-mentioned grid support portion.

And, be preferably in above-mentioned grid support portion and be provided with, towards the place ahead and the guide part that extends of below than the forward side in above-mentioned contact support portion.So, when radiator grid etc. was installed for the grid support portion, installation exercise Yi Bian carry out installation exercise, can be improved in visual this grid support portion on one side.

And, be preferably in above-mentioned supplemental support portion be provided with than with the forward side of connecting bridge of above-mentioned grid support portion, towards the place ahead of the contact support portion of above-mentioned grid support portion and second guide part that extend the top.Because can be, come at an easy rate radiator grid to be positioned therefore can further improve the installation exercise of this radiator grid on the assigned position on the above-below direction by in above-mentioned supplemental support portion second guide part being set like this.

And, in said structure, also can above-mentioned supplemental support portion be provided with than with the forward side of connecting bridge of above-mentioned grid support portion, apart from the contact support portion of above-mentioned grid support portion towards above separate on the position of predetermined distance, towards front and back to the limiting wall portion of extending.By this limiting wall portion is set, even be bonded on engage support portion (abutment supporting part) and the subtend parts (counter part) of configuration when vehicle is mobile on bad road towards above produce relative displacement, also can limit this displacement by above-mentioned limiting wall portion towards the top.Thereby, can positively prevent the dislocation of radiator grid etc.

And, it also can be the radiator fixed frame upper side installation portion of above-mentioned center rest, have from the center rest body that extends at above-below direction towards about the flange part that extends, above-mentioned supplemental support portion sees from above and forms vee shape, one leading section of this supplemental support portion is fixed on one of them flange part of above-mentioned left and right sides flange part, and another leading section of this supplemental support portion is fixed on another flange part of this left and right sides flange part.So, because above-mentioned grid support portion not only can suppress with respect to the displacement of center rest at fore-and-aft direction by see the supplemental support portion that forms vee shape from above, can also be suppressed at the displacement of left and right directions, therefore can improve the rigidity of the horizontal direction of this grid support portion.

Above-mentioned radiator fixed frame top is equipped with the part of the resin heat sink fixed frame of bonnet louver (bonnet lock) for utilizing anchor clamps, and above-mentioned center rest is positioned with respect to above-mentioned radiator fixed frame by the center rest location division that is arranged on these anchor clamps.So, because above-mentioned center rest is located well with respect to radiator fixed frame top precision, therefore make the grid support portion that is set to one with this center rest with respect to locating well, can positively support this radiator grid by the radiator grid precision of above-mentioned radiator fixed frame upper support.And, because above-mentioned center rest is to be positioned by the anchor clamps that the installation bonnet louver is used, therefore do not need special-purpose anchor clamps, can seek the reduction of manufacturing cost.

And above-mentioned radiator fixed frame top is to utilize anchor clamps that the part of the resin heat sink fixed frame of bonnet louver is installed, and also the radiator fixed frame upper side installation portion and the above-mentioned bonnet louver of above-mentioned center rest can be tightened together.Promptly, if the mounting hole working accuracy of above-mentioned center rest is better, then itself and the bonnet louver that utilizes the anchor clamps location are tightened together, can be under the situation of the unit clamp that need not locate usefulness etc., improve the accuracy of positioning of this center rest, can seek to improve installation exercise.

And, make crash sensor be installed in the radiator fixed frame upper side installation portion of above-mentioned center rest.As mentioned above, by the grid support portion being arranged on integratedly in the structure of above-mentioned center rest, crash sensor is installed in the radiator fixed frame upper side installation portion of this center rest, not only can detect the load of passing on via the center beam of bumper side installation portion of this center rest that imposes on center beam of bumper by above-mentioned crash sensor, the load of passing on via above-mentioned grid support portion that imposes on radiator grid can also be detected, collision can be detected more accurately.

But in the aforesaid structure that crash sensor is arranged on center rest, when being applied with impact load via the grid support portion, on the contrary, this impact load can make by the waveform of crash sensor output unusual sometimes.At this moment, be preferably in the frangible portion more weak with respect to the load of fore-and-aft direction is set at least one support portion of above-mentioned grid support portion and supplemental support portion.

So, owing to above-mentioned grid support portion is easy to therefore can prevent that the load that applies is applied directly to the situation of crash sensor via this grid support portion in frangible portion generation distortion towards the rear because of the impact load that is applied.

And, can replace structure as described above, above-mentioned radiator fixed frame comprises top and left and right sides sidepiece at least, above-mentioned radiator grid support component comprises the left and right sides installation portion of the left and right sides sidepiece that is installed in above-mentioned radiator fixed frame respectively, and forms the bridge portion that connects between this installation portion and expand towards the place ahead and go out, come from the cradle portion of the above-mentioned radiator grid of supported underneath.

According to this structure,, therefore can prevent that this radiator grid is because of its deadweight phenomenon sagging towards the below because radiator grid is also supported from the below by the cradle portion of the radiator grid support component of the left and right sides sidepiece that is installed in the radiator fixed frame.And, because above-mentioned radiator grid support component is fixed on the left and right sides sidepiece of radiator fixed frame, support above-mentioned radiator grid with its entire bracket portion, therefore can positively support this radiator grid from the below.Thereby, can prevent that this radiator grid is crooked and damage the phenomenon of front part of vehicle outward appearance towards the below.

In said structure, the upper surface that is preferably in above-mentioned cradle portion is provided with a plurality of ribs of extending upward and be configured in side by side in front and back on the vehicle-width direction and in second cradle portion that links together between the rearward end with this rib on the vehicle-width direction, above-mentioned radiator grid from supported underneath by above-mentioned second cradle portion.Can improve the rigidity of the cradle portion of this radiator grid support component by on the cradle portion of radiator grid support component, forming a plurality of ribs like this.And, owing to will link together between the rearward end of these a plurality of ribs on the vehicle-width direction, therefore can improve the intensity of this each rib by second cradle portion, can further improve the rigidity of the cradle portion of above-mentioned radiator grid support component.And, owing to support radiator grid, therefore can improve stability of strutting system from whole this radiator grid of supported underneath by above-mentioned second cradle portion.And, since by on above-mentioned cradle portion, be provided with a plurality of in front and back upwardly extending rib, make rib carry out the line contact with respect to above-mentioned radiator grid, therefore needn't form above-mentioned radiator grid support component with high dimension precision, can improve the productivity of this radiator grid support component.

And, also can be above-mentioned front bumper cover the anterior position of above-mentioned cradle portion from the height and position of this cradle portion towards the place ahead and below extend.The front end of the above-mentioned cradle portion of above-mentioned radiator grid support component is positioned near the back side of above-mentioned bumper/spoiler cover, and above-mentioned radiator grid support component comprises that also the back side from the front end of this cradle portion along above-mentioned bumper/spoiler cover is towards the place ahead and the bumper/spoiler cover support portion of extending, below.By such bumper/spoiler cover support portion is set, not only can support radiator grid from the rear view of vehicle side, can also come the bar carrier cover from the rear view of vehicle side, can improve the rigidity of this bumper/spoiler cover.And, because above-mentioned bumper/spoiler cover support portion is arranged on the radiator grid support component integratedly, therefore needn't reset other parts, manufacturing cost is increased considerably.

And above-mentioned radiator grid support component also can comprise the both ends of the vehicle-width direction that connects above-mentioned bumper/spoiler cover support portion respectively and the side wall portion of above-mentioned left and right sides installation portion.By such side wall portion is set, can improve the rigidity of the fore-and-aft direction of above-mentioned radiator grid support component, simultaneously, can also improve the rigidity of direction of twist and vehicle-width direction.

And, at above-mentioned side wall portion and above-mentioned installation portion, cross over both, be provided with the strengthening rib that extends at fore-and-aft direction.So, because the side wall portion of above-mentioned radiator grid support component and installation portion also because of strengthening rib is connected reinforcement, therefore can further improve the rigidity of this radiator grid support component.

And best above-mentioned radiator grid support component comprises from the lower end of above-mentioned bumper/spoiler cover support portion towards rear extension and is connected the lower wall portion of above-mentioned side wall portion at the both ends of vehicle-width direction.So, because above-mentioned radiator grid support component becomes towards the such hexahedron shape of rear opening, therefore can further improve the rigidity of this radiator grid support component.

And, above-mentioned radiator grid support component also can form the shape that the section of opening towards the rear is roughly " コ " shape by cradle portion, bumper/spoiler cover support portion and lower wall portion, be provided with in the inboard cross over above-mentioned cradle portion, bumper/spoiler cover support portion and lower wall portion and in front and back are upwardly extending side stringer.

So, strengthen together, therefore can further improve the rigidity of this radiator grid support component because cradle portion, bumper/spoiler cover support portion and the lower wall portion of above-mentioned radiator grid support component are also connected by interior side stringer.

Above-mentioned radiator grid support component, comprise center beam of bumper cap and connecting portion, this center beam of bumper cap is to form the form of ventilation inlet below above-mentioned lower wall portion, be arranged on the below that predetermined distance is arranged apart from this lower wall portion, this connecting portion links together this center beam of bumper cap and above-mentioned lower wall portion.So, since can by above-mentioned radiator grid support component when the rear of bumper/spoiler cover one side forms ventilation inlet, cover the upper surface of center beam of bumper by the center beam of bumper cap, so can improve the center beam of bumper aesthetics of seeing from the opening of bumper/spoiler cover on every side.And,, so can also improve this lower wall portion and the rigidity that is positioned at the bumper/spoiler cover support portion of this lower wall portion front side because above-mentioned center beam of bumper cap is connected the lower wall portion of radiator grid support component via connecting portion.Here, the afore mentioned rules distance is meant the interval that forms the ventilation inlet of the size that can fully be taken into mobile wind between lower wall portion and center beam of bumper cap.

And, the front side that is preferably in above-mentioned center beam of bumper disposes by this center beam of bumper impact absorbing member of supporting of a side overleaf, above-mentioned center beam of bumper cap forms the front end that its front end is positioned above-mentioned impact absorbing member, this front end be provided with a plurality of on the vehicle-width direction towards below extend and be bonded on the front face of above-mentioned impact absorbing member the junction surface.

By like this, allow the junction surface that is arranged on center beam of bumper cap front end be bonded on by the center beam of bumper front side front surface portion of the impact absorbing member that supports of portion overleaf, can not be provided with in addition under the situation of support component, support the front surface portion of impact absorbing member, can positively prevent deadweight toppling over towards the place ahead because of this impact absorbing member.

And, also can between above-mentioned center beam of bumper and above-mentioned center beam of bumper cap, dispose padded coaming.Because by like this, between center beam of bumper and center beam of bumper cap, dispose padded coaming, even the center beam of bumper cap shakes because of vibration waits, therefore also can absorb this and shake, can prevent positively that this center beam of bumper cap from touching center beam of bumper and producing the phenomenon of abnormal sound by padded coaming.

And, above-mentioned radiator grid support component, also can comprise the sealing board, the sealing board extends towards the top from the both ends of the vehicle-width direction of center beam of bumper cap, forms vertical wall between the sidepiece of above-mentioned radiator fixed frame and above-mentioned front bumper cover.So, because the performance of sealing board is in the effect of the dividing wall of on the vehicle-width direction spatial separation between radiator fixed frame and the front bumper cover being opened, therefore the phenomenon that the hot blast from the reversing of the wind direction in the engine room enters radiator fixed frame the place ahead can be prevented, the phenomenon that hot blast is taken into outer gas can be prevented.And, because above-mentioned sealing board is arranged on the radiator grid support component, therefore special-purpose parts needn't be set in addition, and, because its bottom links together by the center beam of bumper cap, therefore can suppress sealing board toppling over towards the vehicle-width direction.

And, peristome at above-mentioned front bumper cover is provided with in the upwardly extending wing of upper and lower (fin) portion, above-mentioned radiator grid support component, comprise cover support portion and connecting portion, serve as a connection between the connecting portion of this cover support portion about above-mentioned, support the cover portion on the peristome top of above-mentioned front bumper cover with this bridge portion, this connecting portion is arranged on the position of the vehicle-width direction the same with above-mentioned alar part, connects above-mentioned center beam of bumper cap and cover support portion.Can be by the cover support portion be set like this, support the cover portion on the peristome top of front bumper cover with this cover support portion, improve the rigidity of this cover portion, simultaneously, can improve this cover support portion self rigidity by connecting the center beam of bumper cap of this cover support portion and the upper surface that covers center beam of bumper.And, owing to will connect the connecting portion of above-mentioned cover support portion and center beam of bumper cap, be arranged on the position identical, therefore can make the ventilation resistance minimum of this connecting portion and alar part with the position of the vehicle-width direction of the alar part of the opening that is configured in the front bumper cover.

The simple declaration of accompanying drawing

Fig. 1 is the block diagram of the summary structure of the related front part of vehicle of the first embodiment of the present invention.

Fig. 2 is the block diagram of the summary structure of the front part of vehicle of the state after the bumper/spoiler cover is taken off.

Fig. 3 is in Fig. 2, the block diagram of the state after radiator grid is taken off.

Fig. 4 is the IV-IV line section-drawing among Fig. 1.

Fig. 5 is the V-V line section-drawing among Fig. 1.

Fig. 6 shows the enlarged drawing that the upper portion in the VI-VI line section among Fig. 1 is amplified.

Fig. 7 is the block diagram of radiator grid.

Fig. 8 is the front elevation of bonnet louver.

Fig. 9 is the block diagram of the related member group that comprises center rest of first embodiment.

Figure 10 shows the block diagram (the place ahead one side) of location with the summary structure of anchor clamps.

Figure 11 shows the block diagram (rear one side) of location with the summary structure of anchor clamps.

Figure 12 is the block diagram that shows when utilizing the location to be installed in bonnet louver and center rest on the radiator fixed frame with anchor clamps.

Figure 13 is the summary front elevation that shows the related radiator grid supporting construction of second embodiment.

Figure 14 is the back view that shows the summary structure of radiator grid supporting construction.

Figure 15 is after the support component of bumper/spoiler retention tab is amplified, from the block diagram shown in the rear.

Figure 16 is the section-drawing corresponding to the front part of vehicle of the position of the XVI-XVI line among Figure 13.

The block diagram of Figure 17 (a) for the time, Figure 17 (b) block diagram for from rear bumper/spoiler retention tab the time from the place ahead bumper/spoiler retention tab.

Figure 18 is the block diagram of the related member group that comprises center rest of second embodiment.

Figure 19 is the block diagram that shows the summary structure of the related front part of vehicle of the third embodiment of the present invention.

Figure 20 is the block diagram of summary structure that shows the front part of vehicle of the state after the bumper/spoiler cover taken off.

Figure 21 is in Figure 20, the block diagram of the state after radiator grid is taken off.

Figure 22 is the XXII-XXII line section-drawing among Figure 19.

Figure 23 is the XXIII-XXIII line section-drawing among Figure 19.

Figure 24 is the XXIV-XXIV line section-drawing among Figure 19.

Figure 25 is the XXV-XXV line section-drawing among Figure 19.

Figure 26 is the XXVI-XXVI line section-drawing among Figure 19.

Figure 27 is the XXVII-XXVII line section-drawing among Figure 19.

Figure 28 is the block diagram of center rest.

Figure 29 is the block diagram of radiator grid support component.

The specific embodiment

Below, with reference to accompanying drawing embodiments of the invention are illustrated.In addition, the explanation of following embodiment only is suitable for example of the present invention in itself, and the present invention is not painstakingly limited its suitable thing or its purposes.

(first embodiment)

Fig. 1 shows the related vehicle front body structure of the first embodiment of the present invention.That is, this Fig. 1 is shown schematically in the primary member of radiator grid 1, radiator fixed frame 2, bumper/spoiler cover 3 vehicle front portions such as (front bumper covers), to the diagram of other parts (for example, driving engine etc.) in addition omission.

Above-mentioned bumper/spoiler cover 3 is configured to cover front part of vehicle by the resin making sheet shape component set-up that forms the regulation shape.And, being provided with bumper/spoiler cover peristome 3a in its downside central authorities as vent, the fog lamp that is provided with the configuration fog lamp about this bumper/spoiler cover peristome 3a is with peristome 3b, 3b.And, upper portion at above-mentioned bumper/spoiler cover 3, be formed with the grid recess 3c that above-mentioned radiator grid 1 is positioned at middle body, about this grid is with recess 3c, be formed with head lamp (head lamp) recess 3d, 3d that head lamp is positioned.In addition, in above-mentioned bumper/spoiler cover 3, also be formed with peristome at the downside of above-mentioned bumper/spoiler cover peristome 3a.

Above-mentioned bumper/spoiler cover peristome 3a is positioned in the vehicle front of the center beam of bumper 5 between the leading section that connects front side member 4,4, this front side member 4,4 extends towards the vehicle fore-and-aft direction on the position, the left and right sides of vehicle-width direction, is provided with the cap 3e that extends and cover vehicle front one side of this center beam of bumper 5 on the vehicle-width direction in this peristome 3a.And, above-mentioned bumper/spoiler cover peristome 3a be provided with from the periphery of this bumper/spoiler cover peristome 3a with respect to above-mentioned cap 3e the upwardly extending a plurality of rib 3f of upper and lower, 3f ..., thus, can improve the rigidity of this cap 3e.In addition, in vehicle front one side of above-mentioned center beam of bumper 5, and be arranged on and dispose between the cap 3e of bumper/spoiler cover peristome 3a in order to absorb the urethane material 10 of impacting (for example, with reference to Fig. 2～Fig. 5).

Above-mentioned radiator grid 1, comprise grill part 11 and installation portion 12, this grill part 11 is inclined to the position of its lower portion and sees that by the place ahead of vehicle and from above forming central portion becomes the circular-arc of convex in vehicle front one side than the position of upper portion, this installation portion 12 is installed in rear view of vehicle one side of this grill part 11, link together with above-mentioned radiator fixed frame 2, as Fig. 2, Fig. 4～Figure 6 and Figure 7.Both are all fixing by bolt (omitting diagram).In addition, in above-mentioned grill part 11, partly be formed with the car target car mark 11a of portion that is signifying producer in vehicle-width direction substantial middle.

And, above-mentioned radiator grid 1, its upside is connected the radiator fixed frame top 2a on the top that is positioned at above-mentioned radiator fixed frame 2 etc., and the grid of downside and above-mentioned bumper/spoiler cover 3 is bonded together with the periphery of recess 3c, as shown in Figure 4.

Specifically, the installation portion 12 of above-mentioned radiator grid 1 have see from above along circular-arc grill part 11 form above board 12a, near on this central authorities of the vehicle-width direction of board 12a rear view of vehicle one side is formed with a plurality of in order to this radiator grid 1 is connected mounting hole 12b, the 12b (in the present embodiment, being two places) of radiator fixed frame top 2a.And, by allow bolt insert and run through in these mounting holes 12b, the 12b and mounting hole 2g, the 2g that is formed on radiator fixed frame 2 described later in, they are tightened up, above-mentioned radiator grid 1 and radiator fixed frame 2 are linked together.

And, as Fig. 1, Fig. 2 and shown in Figure 7, be provided with at the both ends, the left and right sides of the grill part 11 of above-mentioned radiator grid 1 towards what rear view of vehicle extended and extend connecting portion 11b, 11b, respectively extend connecting portion 11b at this and be formed with mounting hole 11c respectively.By allow bolt insert and run through in these mounting holes 11c, the 11c, in the mounting hole (omitting diagram) of bumper/spoiler cover 3 and in the mounting hole (omitting diagram) of head lamp 7, they are together fastening, make above-mentioned radiator grid 1 be connected the car body side at its both ends.

In above-mentioned grill part 11, cross in its bottom vehicle-width direction be provided with a plurality of cave 11d of portion, 11d ..., grid protuberance 3g, the 3g of the periphery of recess 3c that is formed on above-mentioned bumper/spoiler cover 3 ... be entrenched in respectively the 11d of this cave portion, 11d ... (with reference to Fig. 4).Promptly, use the periphery of recess 3c at the grid of above-mentioned bumper/spoiler cover 3, with corresponding to a plurality of cave 11d of portion, the 11d of the bottom that is arranged on above-mentioned grill part 11 ... the form of position, be formed with a plurality of protuberance 3g, 3g towards the rear view of vehicle bending ..., these protuberances 3g, 3g ... be entrenched in respectively the above-mentioned cave 11d of portion, 11d ... in.

Above-mentioned radiator fixed frame 2 for the resin material that will for example contain strengthening material such as glass fibre by the integrally formed resin system frame shape parts of reaction-injection moulding (injection molding), as shown in Figures 2 and 3, by the upwardly extending radiator fixed frame top 2a in vehicle-width side, from the left and right end portions of this radiator fixed frame top 2a respectively towards below the 2b of longitudinal portion, the 2b that extend and the bottom 2c of the radiator fixed frame between the bottom of the 2b of these longitudinal portions of the upwardly extending connection in vehicle-width side, 2b and be formed with peristome 2d in their inboard.

And, in rear view of vehicle one side of above-mentioned radiator fixed frame 2, facing above-mentioned peristome 2d and dispose radiator 6 as cooling mechanism, it is fixed on this radiator fixed frame 2.Above-mentioned radiator fixed frame 2, on the front side member 4,4 about the 2b of its longitudinal portion, 2b are fastened on respectively, therefore, above-mentioned radiator 6 is being stood to be arranged on the car body, so that accept mobile wind from vehicle front with front surface.That is, above-mentioned radiator 6 is positioned in the position that is roughly rear view of vehicle of the bumper/spoiler cover peristome 3a that is arranged on bumper/spoiler cover 3, is cooled by the mobile wind that sucks from this bumper/spoiler cover peristome 3a.

In addition, in the 2b of longitudinal portion, the 2b of above-mentioned radiator fixed frame 2, than the position of the part that is fastened on the front side member 4,4 about above-mentioned respectively, be provided with in order to prevent closing plate 9,9 from the wind direction reversing of the hot blast of engine room one side by downside.

At the radiator fixed frame top 2a of above-mentioned radiator fixed frame 2, be formed with in order to accommodate the lock resettlement section 2e of bonnet louver 21, as shown in Figure 3 at the middle body of vehicle front one side.This lock resettlement section 2e forms bag (pocket) shape, on the front surface of radiator fixed frame top 2a, towards above opening, such bonnet louver 21 shown in Figure 8 is being housed under its in-to-in state (with reference to Fig. 5), the substrate 22 of this bonnet louver 21 is being fastened on the front face 2f that constitutes lock resettlement section 2e and mounting flange 31c, the 31c last (with reference to Fig. 6) of aftermentioned center rest 31 with bolt 23,23.In addition, upside in the substantial middle portion of this front face 2f, can the striker that be roughly the U font (striker) 8a (with reference to Fig. 5) of car bonnet 8 and the mode that above-mentioned bonnet louver 21 is bonded together being arranged on, be formed with the breach (with reference to Fig. 3) that this striker 8a inserted and ran through usefulness.

Below, with reference to the structure in addition simple declaration of Fig. 8 to above-mentioned bonnet louver 21.This bonnet louver 21 is for having formed the parts of embedded grooves 24 at the substantial middle place of substrate 22, by close or open the open side of this embedded grooves 24 with bolt 27, the striker 8a that makes car bonnet 8 or frees in this embedded grooves 24 in this embedded grooves 24.That is,, in above-mentioned embedded grooves 24, formed grasping part 28 in order to clamping (catching) striker 8a by above-mentioned bolt (latch) 27.In addition, at above-mentioned bonnet louver 21, also be provided with the bolt 25 on the direction that in advance power is applied to the open side of closing above-mentioned embedded grooves 24, as long as the integrally formed control stalk 26 of inoperation and this bolt 25, the striker 8a of above-mentioned car bonnet 8 just can not liberated fully.

As shown in Figures 3 and 4, radiator fixed frame top 2a at above-mentioned radiator fixed frame 2, the upper surface of portion in the central, corresponding with mounting hole 12b, the 12b of the installation portion 12 of above-mentioned radiator grid 1, be formed with towards vehicle front outstanding protrusion 2h, 2h, and be formed with mounting hole 2g, the 2g that runs through above-below direction at this protrusion 2h, 2h.Can fasten them together by allowing bolt insert and running through mounting hole 12b, the 12b of these mounting holes 2g, 2g and above-mentioned radiator grid 1, above-mentioned radiator grid 1 is fixed on the radiator fixed frame 2.In addition, at above-mentioned radiator fixed frame top 2a, on the face of vehicle front one side, the both ends that are positioned at the vehicle-width direction are formed with circular hole 2i, the 2i towards the vehicle front opening respectively, insert respectively in these circular holes 2i, the 2i towards protrusion 12c, the 12c that rear view of vehicle extends from the installation portion 12 of above-mentioned radiator grid 1.

Dispose center rest 31, with the central portion of the vehicle-width direction of the lock resettlement section 2e that connects above-mentioned radiator fixed frame 2 and above-mentioned center beam of bumper 5.Specifically, one end of this center rest 31 is connected on the substrate 22 of the bonnet louver 21 in the above-mentioned lock resettlement section 2e, the other end is connected rear vehicle end one side of above-mentioned center beam of bumper, thus, the striker 8a that stops car bonnet 8 for bonnet louver 21 from the top impact load when chimeric.Therefore, can prevent the damage that resin heat sink fixed frame 2 is caused because of 8 o'clock the impact of cover that kills engine by above-mentioned center rest 31 is set.

Above-mentioned center rest 31 is roughly the metallic component set-up of " コ " shape by section, constitutes bottom as center beam of bumper side installation portion 31b and is positioned to liken to upper end into radiator fixed frame side installation portion 31a by vehicle front, as shown in Figure 9.That is, be such shape: see from the side, two installation portion 31a, 31b extending on the above-below direction always along above link together by the connecting portion that extends towards rear view of vehicle.

And, the above-mentioned center beam of bumper side installation portion 31b of above-mentioned center rest 31 by bolted on center beam of bumper 5, above-mentioned radiator fixed frame side installation portion 31a has respectively and extends formed mounting flange 31c, 31c (flange part) to left and right direction from " コ " shape section body (center rest body), via this mounting flange 31c, 31c by bolted on radiator fixed frame 2.In addition, above-mentioned radiator fixed frame side installation portion 31a will be explanatorily as later institute, tightens together with the substrate 22 of bonnet louver 21, thereby make above-mentioned center rest 31 direct connections on bonnet louver 21.

And the bottom that upper end side extends to the grid support component 32 (grid support portion) of the bottom of above-mentioned radiator grid 1 is bonded on the center beam of bumper side installation portion 31b of above-mentioned center rest 31 by dot welding method.This grid support component 32 is positioned than lower end side more by vehicle front, as Fig. 3 and shown in Figure 9 for seeing roughly the metallic parts that form " C " shape, its upper end side from the side.

Specifically, above-mentioned grid support component 32 is for along its length, section is roughly the parts that the parts bending of " コ " shape forms in 3 places, from under begin successively by joint portion 32a (base end part), elbow (arm) 32b of portion, engaging (abutment) 32c of portion and guide part 32d constitutes, this joint portion 32a is combined on the center beam of bumper side installation portion 31b of center rest 31, this ancon 32b vehicle front and above extend, the bottom that this junction surface 32c is bonded on above-mentioned radiator grid 1, this guide part 32d is in order to be loaded in this radiator grid 1 on the 32c of junction surface at an easy rate.

Above-mentioned joint portion 32a forms from the side and sees, almost extend on above-below direction along the center beam of bumper side installation portion 31b of center rest 31 always, under the state that itself and this center beam of bumper side installation portion 31b is superimposed together, forms as one by dot welding method.Above-mentioned ancon 32b forms from the upper end of joint portion 32a and extends towards vehicle front and top, is fixed on the base end side of seeing roughly the supplemental support parts 33 (supplemental support portion) that form " V " shape from above by methods such as weldings.In addition, the leading section of the open side of these supplemental support parts 33 is combined on mounting flange 31c, the 31c of the radiator fixed frame side installation portion 31a that is formed on above-mentioned center rest 31.So, owing to not only the bottom of above-mentioned grid support component 32 and center rest 31 is linked together, and both upside positions are also linked together, therefore can improve the rigidity of the vehicle fore-and-aft direction of this grid support component 32.And, because being seen from above, above-mentioned supplemental support parts 33 are roughly " V " shape, the fore-end of its open side is combined in respectively on left and right sides mounting flange 31c, the 31c of center rest 31, therefore can also improve the rigidity of vehicle-width direction.In addition, be one, constitute the member group (radiator grid support component) that comprises center rest by above-mentioned center rest 31, grid support component 32 and supplemental support parts 33 are mutually combined.

Above-mentioned junction surface 32c forms and sees that from the side almost on even keel extends upward in the vehicle front and back, constitutes from the above-mentioned radiator grid 1 of supported underneath.And above-mentioned guide part 32d forms from the vehicle front end of junction surface 32c and extends towards vehicle front and below, thereby above-mentioned radiator grid 1 successfully can be lifted on the 32c of junction surface.

By above-mentioned grid support component 32 is set like this, as present embodiment, when above-mentioned radiator grid 1 is large-scale grid, this grid tilts significantly and is positioned than upper portion by vehicle front for its lower portion, and see that from above the middle body that can positively prevent this radiator grid 1 is because of its deadweight phenomenon crooked significantly towards the below under the situation about forming when circular-arc.Promptly, though the upper portion of above-mentioned radiator grid 1 is by supports such as radiator fixed frame 2 and head lamps 7, lower portion is supported by bumper/spoiler cover 3, but when the heaviest middle body of weight produces the bevelled words, be to support the weight of above-mentioned radiator grid 1 only then by support to upper portion, bigger load acts on the more weak above-mentioned bumper/spoiler cover 3 of rigidity, and this bumper/spoiler cover 3 is out of shape significantly.And as mentioned above,, then can prevent such distortion if with metallic grid support component 32 central portions from supported underneath radiator grid 1.

Therefore, can prevent that bumper/spoiler cover 3 is out of shape because of the weight of above-mentioned radiator grid 1, between this radiator grid 1 and car bonnet 8, produce the phenomenon in gap.That is to say, can prevent the situation of front part of vehicle appearance damage.

And, as above-mentioned shown in Figure 9, because above-mentioned center rest 31, grid support component 32 and supplemental support parts 33 are combined as a whole, therefore can be in the structure that grid support component 32 is set, this grid support component 32 is installed under the situation of the installation exercise on the car body not carrying out in addition, itself and center rest 31 are installed simultaneously.Therefore, do not make the phenomenon of the assembling operation deterioration of front part of vehicle.

In addition, as Fig. 3, Fig. 6 and shown in Figure 9, be provided with the crash sensor 34 that impact detection is used at the radiator fixed frame side installation portion 31a of above-mentioned center rest 31.Specifically, the cover 35 that section is roughly " コ " shape be configured to cover among left and right sides mounting flange 31c, the 31c of above-mentioned radiator fixed frame side installation portion 31a, one of them mounting flange 31c (in the present embodiment, from the front, vehicle front one side of the part mounting flange for the left side) is configured in its inside with above-mentioned crash sensor 34.The part of this collision detection sensor 34 is connected on the above-mentioned mounting flange 31c, can detect the impact of passing on the above-mentioned center rest 31.

Here, as mentioned above, because grid support component 32 is arranged on above-mentioned center rest 31, so impact load is applied on this center rest 31 from two paths.Promptly, because the center beam of bumper side installation portion 31b of the lower end side of above-mentioned center rest 31 is connected on the center beam of bumper 5, and the lower end side of above-mentioned grid support component 32 also is connected on this center beam of bumper side installation portion 31b integratedly, and therefore the impact load that upper end side applied from this grid support component 32 has also passed to center rest 31.So, owing to not only can detect the impact load that applies from center beam of bumper 5, can also detect the impact load that applies from radiator grid 1, therefore collision detection more accurately.

In addition, above-mentioned cover 35 is configured to towards vehicle-width direction opening, and the flange part 35a that begins to extend towards the top from the sidewall that is positioned at upside is fixed on the mounting flange 31c of above-mentioned center rest 31 by bolt.

-with bonnet louver and center rest be installed in the operation of radiator fixed frame-

Below, in having the vehicle front body structure of said structure, the operation that bonnet louver 21 and center rest 31 is installed in radiator fixed frame 2 is illustrated.Owing to this bonnet louver 21 and the striker 8a of car bonnet 8 are entrenched togather, therefore must precision position well.And,, therefore also must position owing to also above-mentioned center rest 31 will be tightened together with above-mentioned bonnet louver 21.Therefore, below, attaching most importance to this positioning operation is illustrated.

At first, with reference to Figure 10 and Figure 11 the anchor clamps 50 in the positioning operation that is used in above-mentioned bonnet louver 21 and center rest 31 are illustrated.These location anchor clamps 50, comprise body 51, bonnet louver location division 55 and center rest location division 61, this body 51 will link together by upwardly extending cornue along the vertical direction in vehicle-width side arrangement in parallel, this bonnet louver location division 55 is configured near vehicle front one side the central authorities of vehicle-width direction of this body 51, and this center rest location division 61 is formed with the ancon 62 that extends near the upper surface the central authorities of the vehicle-width direction of this body 51, towards vehicle front one side.Bonnet louver 21 and center rest 31 are located well with respect to radiator fixed frame 2 precision, install.

At above-mentioned body 51, near the both ends of its vehicle-width direction and above-mentioned bonnet louver location division 55, be respectively arranged with can be on above-below direction the holding part (clamp) 52,52,53 of the radiator fixed frame top 2a of clamping radiator fixed frame 2.These holding parts 52,52,53 are so-called pincers type (vice type) parts, constituting by the operation of carrying out control lever allows " L " shape elbow rotate, the pin (pin) that is installed in the other end of this elbow is given as security upward, come the radiator fixed frame top 2a of the above-mentioned radiator fixed frame 2 of clamping.

And, at above-mentioned body 51, dispose on the position, the left and right sides of above-mentioned bonnet louver location division 55 respectively towards below outstanding locating dowel pin 54,54.These locating dowel pins 54,54 insert respectively among cave, location 2j, the 2j of upper surface of the radiator fixed frame top 2a that is formed on this radiator fixed frame 2 above-mentioned location is installed in state on the radiator fixed frame 2 with anchor clamps 50 under.

Above-mentioned bonnet louver location division 55, comprise bar 56 and substrate holding part 57, this bar 56 extends upward in the vehicle front and back, in the grasping part 28 in the embedded grooves 23 of front insertion bonnet louver 21, this substrate holding part 57 is in order to clamp the substrate 22 of this bonnet louver 21 on the vehicle fore-and-aft direction, the position of above-below direction that can be by 56 pairs of bonnet louvers 21 of above-mentioned bar positions, and the position of the horizontal direction (left and right directions of front and back) by 57 pairs of bonnet louvers 21 of aforesaid substrate holding part positions.

Above-mentioned center rest location division 61 comprises ancon 62 and locating dowel pin 63,63, and this ancon 62 extends towards vehicle front from the upper surface of body 51, and this locating dowel pin 63,63 forms at the assigned position of the leading section of this ancon 62 outstanding towards rear view of vehicle.Can this center rest 31 can be positioned by among cave, the location 31d, the 31d that this locating dowel pin 63,63 are inserted the radiator fixed frame side installation portion 31a that is formed on above-mentioned center rest 31 (with reference to Figure 12) with respect to radiator fixed frame 2.

Below, the location that utilizes said structure is illustrated with anchor clamps 50 bonnet louvers 21 that carried out, above-mentioned and center rest 31 positioning operation and the installation exercise for the location of radiator fixed frame 2.

At first, bonnet louver 21 is installed in the bonnet louver location division 55 of above-mentioned location with anchor clamps 50.Specifically, the front of the bar 56 of above-mentioned bonnet louver location division 55 is inserted in the grasping part 28 of this bonnet louver 21 of striker 8a of clamping car bonnet 8, simultaneously, by the substrate 22 of this bonnet louver 21 of substrate holding part 57 clampings.Can fix this bonnet louver 21 with respect to the position of above-mentioned location by above-mentioned bar 56 is inserted bonnet louver 21, by fixing bonnet louver 21 with aforesaid substrate holding part 57 clamping substrates 22 with respect to the position of above-mentioned location with the horizontal direction of anchor clamps 50 with the above-below direction of anchor clamps 50.

And, center rest 31 is installed in the center rest location division 61 of above-mentioned location with anchor clamps 50.That is, make to allowing the locating dowel pin 63,63 that is arranged on this center rest location division 61 insert and running through state in cave, location 31d, the 31d that is formed on above-mentioned center rest 31.

And, as mentioned above, with respect to above-mentioned location with anchor clamps 50 stationary engine covers lock 21, be equipped with under the state of above-mentioned center rest 31, should locate and be fixed on the radiator fixed frame 2 with anchor clamps 50.That is, insert among cave, location 2j, the 2j of the radiator fixed frame top 2a that is formed on above-mentioned radiator fixed frame 2, carry out the location of horizontal direction being arranged on the locating dowel pin 54,54 of this location with the body 51 of anchor clamps 50.Under this state, by the above-mentioned radiator fixed frame top 2a of holding part 52,52,53 clamping on thickness direction that is arranged on above-mentioned body 51, with respect to radiator fixed frame 2 fixing above-mentioned location anchor clamps 50.

Therefore, being fixed on above-mentioned location is located on the position of regulation with respect to above-mentioned radiator fixed frame 2 with the bonnet louver 21 of anchor clamps 50, that is, be fixed on that above-mentioned location is located in respect to above-mentioned radiator fixed frame 2 with the bonnet louver 21 of anchor clamps 50 in the lock resettlement section 2e of the radiator fixed frame top 2a that is formed on this radiator fixed frame 2 and with the corresponding design attitude of striker 8a of car bonnet 8 on.And simultaneously, the center rest 31 that is installed in above-mentioned center rest location division 61 also is located on the position that its mounting flange 31c, 31c can tighten together with the substrate 22 of above-mentioned bonnet louver 21.

If under above-mentioned state, allow bolt 23,23 insert and run through the substrate 22 that is formed on above-mentioned bonnet louver 21 mounting hole, be formed on the mounting hole of above-mentioned lock resettlement section 2e and be formed in the mounting hole of mounting flange 31c, 31c of above-mentioned center rest 31, fasten them together, then can install in that bonnet louver 21 and center rest 31 are fastened under the intrinsic locational state simultaneously.

Like this, by carrying out the location of above-mentioned bonnet louver 21, the generation of the chimeric bad and abnormal sound when the striker 8a that can prevent car bonnet 8 is chimeric with respect to this bonnet louver 21 etc.And by carrying out the location of above-mentioned center rest 31 simultaneously, this radiator grid 2 can positively be supported in the bottom that grid support component 32 precision that are wholely set at this center rest 31 can be positioned at radiator grid 2 well.And the location by utilizing above-mentioned bonnet louver 21 is with anchor clamps 50, positions for the radiator fixed frame 2 of above-mentioned center rest 31, can not need the anchor clamps of these center rest 31 special uses, seeks the reduction of manufacturing cost.

As mentioned above, owing to will be arranged on the center rest 31 that is configured between radiator fixed frame 2 and the center beam of bumper 5 integratedly from the grid support component 32 of the central portion of the vehicle-width direction of the above-mentioned radiator grid 1 of supported underneath, even so volume is big and inclination is also leaned on vehicle front, sees the middle body that forms the vehicle-width direction from above the roughly circular-arc radiator grid of vehicle front for " protruding " shape that than upper side position the middle body that also can prevent this vehicle-width direction is because of the phenomenon of deadweight towards the below bending for lower position.Thereby, can prevent because of the bumper/spoiler cover 3 from the above-mentioned radiator grid 1 of supported underneath is out of shape significantly, make between this radiator grid 1 and car bonnet 8, to produce factitious gap etc., damage the phenomenon of front part of vehicle outward appearance.

And because above-mentioned grid support component 32 extends towards the top from the center beam of bumper side installation portion 31b for the bottom of above-mentioned center rest 31, therefore the load of above-mentioned radiator grid 1 is applied on the compression direction of the stronger grid support component 32 of rigidity.And,, therefore can improve the rigidity of this grid support component 32 because above-mentioned grid support component 32 shortens the length of extending because of extending from the above-mentioned radiator grid 1 immediate center beam of bumper side installation portion 31b of distance.Thereby, can more positively support above-mentioned radiator grid 1 under the stable status.

And, owing to, therefore limited the displacement of this grid support component 32 by seeing that from above the supplemental support parts 33 that form roughly " V " font connect between above-mentioned grid support component 32 and the above-mentioned center rest 31.Promptly, the base end side of these supplemental support parts 33 is connected on the above-mentioned grid support component 32, front is connected on mounting flange 31c, the 31c that extends from the left and right directions of above-mentioned center rest 31, therefore the vehicle fore-and-aft direction of this grid support component 32 and the rigidity of vehicle-width direction can be improved, above-mentioned radiator grid 1 can be more positively supported.

And, as mentioned above, owing to above-mentioned grid support component 32 is arranged on the center rest 31 integratedly, therefore can be when being installed in this center rest 31 on the car body, grid support component 32 also is installed on the car body, does not allow the situation of assembling operation deterioration of front part of vehicle.

(second embodiment)

Figure 13～Figure 15 shows front elevation when having used the related vehicle front body structure of the second embodiment of the present invention, back view respectively and from the block diagram at rear.Because the related vehicle front body structure of this second embodiment and the difference of above-mentioned first embodiment only are the supporting construction of radiator grid 1, therefore following to marking prosign with a part, and only different parts is illustrated.

That is, in the present embodiment, allow the front surface (surface) of bumper/spoiler retention tab 71 be bonded on the back side one side of bumper/spoiler cover 3, improve the rigidity of this bumper/spoiler cover 3, simultaneously, by this bumper/spoiler retention tab 71 from supported underneath radiator grid 1.And, this bumper/spoiler retention tab 71 by from the center beam of bumper side installation portion 31b of center rest 31 towards the place ahead and the retention tab support component 75 (grid support portion) that extends of top support.

Specifically, above-mentioned bumper/spoiler retention tab 71 is for along the resin parts bottom of this radiator grid 1, that can form from the whole above-mentioned radiator grid 1 of supported underneath, corresponding with the shape of the bumper/spoiler cover 3 of the below that is configured in this radiator grid 1, forming becomes the shape that converx section is roughly " C " font forwardly.More particularly, above-mentioned bumper/spoiler retention tab 71 is made of bumper/spoiler cover support portion 71a and side wall portion 71b, this bumper/spoiler cover support portion 71a along the square forward back side that becomes converx bumper/spoiler cover 3 of the middle body of its above-below direction, form the shape that section is roughly " C " font, this side wall portion 71b is arranged on the both ends of this bumper/spoiler cover support portion 71a, thereby, can improve whole rigidity.

And, at the back side of above-mentioned bumper/spoiler cover support portion 71a, vehicle-width direction almost parallel be provided with in fore-and-aft direction extension a plurality of with arranging side rib 71f, 71f ... thereby,, can further improve the rigidity of above-mentioned bumper/spoiler retention tab 71.

And, be provided with in the upside rear end of the bumper/spoiler cover support portion 71a of above-mentioned bumper/spoiler retention tab 71 a plurality of in order to bottom bonded assembly grid connecting portion 71c, the 71c of above-mentioned radiator grid 1 ..., be provided with in the rear end of the downside of this bumper/spoiler cover support portion 71a a plurality of in order to above-mentioned bumper/spoiler cover bonded assembly bumper/spoiler cover connecting portion 71d, 71d ...So, be positioned in above-mentioned bumper/spoiler retention tab 71 under the state at rear of above-mentioned bumper/spoiler cover 3, its top and the bottom are fastened on respectively on above-mentioned radiator grid 1 and the bumper/spoiler cover 3.

And, lip-deep upper portion at above-mentioned bumper/spoiler cover support portion 71a, along vehicle-width direction almost parallel be provided with arranging a plurality of outer ribs 71e, 71e in the fore-and-aft direction extension ... (longitudinal rib), these outer ribs 71e, 71e ... be projected into respectively till the position at the back side that jag is bonded on bumper/spoiler cover 3.Therefore, above-mentioned bumper/spoiler cover 3 just by these outer ribs 71e, 71e ... joint is supporting.

Above-mentioned outer ribs 71e, 71e ... rear end side and the outstanding distolateral tabular cradle portion 71h that extends in the vehicle-width direction that is provided with.Specifically, this cradle portion 71h has upper plate portion 71i and longitudinal wall part 71j, this upper plate portion 71i be arranged on above-mentioned outer ribs 71e, 71e ... outstanding distolateral, so as and above-mentioned bumper/spoiler cover support portion 71a between form the space, this longitudinal wall part 71j the rear end side of this upper plate portion 71i be outer ribs 71e, 71e ... rear end side extend towards the below from this upper plate portion 71i.That is to say, above-mentioned cradle portion 71h be set to cover from the rear above-mentioned outer ribs 71e, 71e ..., above-mentioned bumper/spoiler retention tab 71 is configured in radiator grid 1 below the time, above-mentioned cradle portion 71h is bonded on the downside of this radiator grid 1.So, can support this radiator grid 1 by enough whole downsides, can improve stability of strutting system.And, owing to be provided with above-mentioned cradle portion 71h, above-mentioned a plurality of outer ribs 71e, 71e ... rear end side also link together by this cradle portion 71h, therefore can improve this outer ribs 71e, 71e ... rigidity.So,, therefore above-mentioned bumper/spoiler cover 3 can be more positively supported, the rigidity of this bumper/spoiler cover 3 can be improved from the rear owing to can improve the rigidity of whole above-mentioned bumper/spoiler retention tab 71.

In addition, upper end at above-mentioned bumper/spoiler cover support portion 71a, the middle body of vehicle-width direction caves in towards the below, position with the car mark 11a of portion to above-mentioned radiator grid 1, this sunk part becomes supported the 71g (top) that is supported from the rear by retention tab (retainer) support component 75 described later.

Above-mentioned retention tab support component 75 is made of the bigger plate-shaped member of width, its bottom by bolted on the center beam of bumper side installation portion 31b of center rest 31, upper end side towards the place ahead and the top extend, be positioned the downside of supported 71g of above-mentioned bumper/spoiler retention tab 71, as Figure 15 and shown in Figure 180.Specifically, above-mentioned retention tab support component 75 is the same with grid support component 32 among above-mentioned first embodiment, be to form by will form the plate member bending that section is roughly " コ " shape along its length in three places, begin successively by joint portion 75a (base end part) from its downside, ancon 75b and junction surface 75c (joint support portion) and guide part 75d constitute, this joint portion 75a is combined on the center beam of bumper side installation portion 31b of center rest 31, this ancon 75b is from the front end of this joint portion 75a, extend towards vehicle front and top, this junction surface 75c is bonded on the lower end of supported 71g of above-mentioned bumper/spoiler retention tab 71, and this guide part 75d is in order to be loaded in this bumper/spoiler retention tab 71 on the 75c of junction surface at an easy rate.

Above-mentioned joint portion 75a forms the center beam of bumper side installation portion 31b along center rest 31, see almost straight extension on above-below direction from the side, and the middle body of vehicle-width direction be provided with from lower end side towards above the slit that extends, its position, left and right sides respectively by bolted on above-mentioned center rest 31.

Above-mentioned ancon 75b forms from the upper end of joint portion 75a towards vehicle front and top and extends, and is fixed with the distolateral of aftermentioned supplemental support parts 76 (supplemental support portion) by dot welding method etc.In addition, on the distolateral center beam of bumper side installation portion 31b that is combined in above-mentioned center rest 31 of another of these supplemental support parts 76.Therefore, the bottom of not only above-mentioned retention tab support component 75 and center rest 31 links together, and the position of upside also links together, and can improve the rigidity of the vehicle fore-and-aft direction of this retention tab support component 75.In addition, be together with each other, constitute the member group that comprises center rest by making above-mentioned center rest 31, retention tab support component 75 and supplemental support parts 76.

Above-mentioned junction surface 75c forms and sees that from the side almost on even keel extends towards the vehicle fore-and-aft direction, constitutes supported 71g from the above-mentioned bumper/spoiler retention tab 71 of supported underneath.And above-mentioned guide part 75d forms from the vehicle front end of junction surface 75c and extends towards vehicle front and below, therefore, above-mentioned bumper/spoiler retention tab 71 successfully can be raised on the 71c of junction surface.

And, cross over joint portion 75a, ancon 75b, junction surface 75c and guide part 75d with the both ends, the left and right sides of above-mentioned retention tab support component 75 towards the below or the place ahead bending, the section of above-mentioned retention tab support component 75 is roughly become " コ " shape.By both ends, so crooked left and right sides, can improve the rigidity of above-mentioned retention tab support component 75, can more positively support above-mentioned bumper/spoiler retention tab 71 from the below.

Particularly as Figure 15 and shown in Figure 180, owing to be provided with left and right sides flange part 75e towards the vehicle front side bending in the part of the joint portion of above-mentioned retention tab support component 75 75a, therefore when impact is applied on this retention tab support component 75 from the place ahead, the flange part 75e of the joint portion 75a of this retention tab support component 75 direction to the left and right opens, and makes the distortion towards the rear more easily of this retention tab support component 75.Promptly, though by making the flange part 75e of the joint portion 75a that is arranged on above-mentioned retention tab support component 75 side-prominent towards the place ahead, can improve 75 pairs of rigidity of this retention tab support component from the load of top, but can not improve 75 pairs of rigidity of this retention tab support component, therefore can allow this retention tab support component 75 more easily be out of shape towards the rear from the impact in the place ahead.

So, as shown in figure 18, when the same with above-mentioned first embodiment, the impact load that applies via radiator grid 1 and retention tab support component 75, when making the waveform of crash sensor 34 output of the radiator fixed frame side installation portion 31a that is arranged on above-mentioned center rest 31 unusual, by making this retention tab support component 75 more yielding, impact load can be communicated at that, can keep the accuracy of detection of this crash sensor 34.

Here, like this, allow rigidity only fore-and-aft direction be applied the more weak above-mentioned flange part 75e of load corresponding to frangible portion.In addition, this frangible portion is not limited to the such structure of present embodiment, for example, also can form otch (breach) in each dogleg section of above-mentioned retention tab support component 75 and aftermentioned supplemental support parts 76, comes painstakingly to make the rigidity of fore-and-aft direction to die down.

The supplemental support parts 76 that between the radiator fixed frame side installation portion 31a of the ancon 75b of above-mentioned retention tab support component 75 and above-mentioned center rest 31, serve as a connection, be the plate-shaped member of both ends towards the top bending, the distolateral bolt up of one is on the face of the place ahead of above-mentioned center rest 31 one side, and the other end is combined in by dot welding method on the face of rear one side of above-mentioned retention tab support component 75.

Specifically, above-mentioned supplemental support parts 76, have center rest installation portion 76a, joint portion 76b and ancon 76c, this center rest installation portion 76a is fastened on above-mentioned center rest 31, distolateral for above-mentioned supplemental support parts 76, this joint portion 76b is combined in above-mentioned retention tab support component 75, distolateral for another of above-mentioned supplemental support parts 76, and this ancon 76c connects between this center rest installation portion 76a and the joint portion 76b.And, more front at above-mentioned joint portion 76b is provided with 76d of limiting wall portion and upside guide part 76e (second guide part), the 76d of this limiting wall portion approximate horizontal on fore-and-aft direction is extended, this upside guide part 76e from the front end of the 76d of this limiting wall portion towards the place ahead and the top extend.Top and distance that the 76d of this limiting wall portion is formed on the junction surface 75c of above-mentioned retention tab support component 75 have on the position of predetermined distance, when on bad road, moving etc., bumper/spoiler cover 3 during towards the relative displacement in top, has limited supported 71g the moving towards the top of the bumper/spoiler retention tab 71 that is positioned on the above-mentioned junction surface 75c with radiator grid 1.In addition, afore mentioned rules distance is to consider that operation when junction surface 75c that supported 71g with above-mentioned bumper/spoiler retention tab 71 is positioned at above-mentioned retention tab support component 75 goes up and this supported 71g are towards the decisions such as higher limit of the height of top displacement.

And, above-mentioned upside guide part 76e is being installed in center rest 31 grades under the state of radiator fixed frame 2 with the installation method shown in above-mentioned first embodiment, install from vehicle front with respect to retention tab support component 75 be furnished with radiator grid 1, and during the bumper/spoiler retention tab 71 of bumper/spoiler cover 3, for supported 71g with this bumper/spoiler retention tab 71 positively is positioned on the above-mentioned retention tab support component 75, be used for when mounted above-below direction to this bumper/spoiler retention tab 71 to position usefulness.By so above-mentioned upside guide part 76e is set, even supported 71g of above-mentioned bumper/spoiler retention tab 71 be positioned at assigned position above the time, also can positively be located on the installation portion of above-mentioned retention tab support component 75 by this upside guide part 76e, because the position of the junction surface 75c of this retention tab support component 75 of Visual Confirmation on one side, above-mentioned bumper/spoiler retention tab 71 is installed on one side, therefore can improves installation exercise.

And above-mentioned supplemental support parts 76 are also the same with above-mentioned retention tab support component 75, can improve whole rigidity by with the bending respectively of its both ends, left and right sides.That is, above-mentioned retention tab support component 75 can positively be supported with respect to above-mentioned center rest 34 towards the top bending in the both ends, the left and right sides of above-mentioned supplemental support parts 76.In addition, as mentioned above, when the waveform of being exported when the crash sensor 34 that is installed in above-mentioned center rest 31 is unusual, if form the words of otch at each sweep of above-mentioned supplemental support parts 76, the impact that then can prevent fore-and-aft direction is passed on the center rest 31 at that, and makes the unusual phenomenon of waveform of above-mentioned crash sensor 34 outputs.

By the retention tab support component 75 of structure as described above is set, can prevent when above-mentioned radiator grid 1 for the bigger grid of volume and tilt to see by vehicle front, from above than upper portion position for its lower portion position and to form when roughly circular-arc that the middle body of this radiator grid 1 is because of the phenomenon of deadweight towards the below bending.Therefore, can prevent that bumper/spoiler cover 3 is out of shape because of the weight of above-mentioned radiator grid 1, cause the phenomenon that between this radiator grid 1 and car bonnet 8, produces the gap.That is to say, can prevent that the outward appearance of front part of vehicle from suffering damage.

And, as above-mentioned shown in Figure 180, because above-mentioned center rest 31, retention tab support component 75 and supplemental support parts 76 are combined as a whole, therefore in the structure that retention tab support component 75 is set, can carry out in addition retention tab support component 75 is installed in operation on the car body, and itself and center rest 31 are installed simultaneously.Thereby, do not make the phenomenon of the assembling operation deterioration of front part of vehicle.

And, because below radiator grid 1 and the rear of bumper/spoiler cover 3 configuration section be roughly the bumper/spoiler retention tab 71 of " C " font, it is connected respectively on this radiator grid 1 and the bumper/spoiler cover 3, the retention tab support component 75 that is extended towards the top by the center beam of bumper side installation portion 31b from center rest 31 supports this bumper/spoiler retention tab 71, therefore can by this bumper/spoiler retention tab 71 in supported underneath radiator grid 1, improve the rigidity of above-mentioned bumper/spoiler cover 3, can more positively prevent the phenomenon that this bumper/spoiler cover 3 is sagging.

And, upper surface in above-mentioned bumper/spoiler retention tab 71, the vehicle-width direction be provided with abreast a plurality of outer ribs 71e, the 71e that extend at fore-and-aft direction ... and overleaf side be provided with front and back upwardly extending a plurality of in side rib 71f, 71f ... therefore whole rigidity can be improved, above-mentioned radiator grid 1 and bumper/spoiler cover 3 can be more positively supported.

And, because above-mentioned outer ribs 71e, 71e ... rearward end link together by the cradle portion 71h that extends in the vehicle-width direction, therefore can further improve the rigidity of above-mentioned bumper/spoiler retention tab 71, and, because above-mentioned radiator grid 1 is positioned on this cradle portion 71h, therefore can cross over whole vehicle-width direction from the below of this radiator grid 1 positively supports this radiator grid 1, can improve stability of strutting system.

And, because at above-mentioned retention tab support component 75 from the above-mentioned bumper/spoiler retention tab 71 of supported underneath, be formed with front end from the junction surface 75c of this bumper/spoiler retention tab 71 towards the place ahead and the guide part 75d that extends of below, the front of the supplemental support parts 76 that they linked together on the top of above-mentioned retention tab support component 75 and center rest 31 also be provided with towards the place ahead and above the upside guide part 76e that extends, therefore can pass through these guide parts 75d, 76e positively is positioned at supported 71g of above-mentioned bumper/spoiler retention tab 71 on the junction surface 75c of above-mentioned retention tab support component 75.Promptly, because when being installed under the state of above-mentioned bumper/spoiler retention tab 71 radiator grid 1 and bumper/spoiler cover 3, when it is installed for above-mentioned retention tab support component 75, can be in the position of the junction surface 75c of visual this retention tab support component 75 on one side, carry out under the situation of installation exercise on one side, above-mentioned bumper/spoiler retention tab 71 is positioned on the 75c of this junction surface at an easy rate, therefore can improves installation exercise.

And, owing to be provided with the 76d of limiting wall portion at above-mentioned supplemental support parts 76, the 76d of this limiting wall portion is in the top position of the junction surface 75c of the rear side of the guide part 76e of above-mentioned supplemental support parts 76 and above-mentioned retention tab support component 75, approximate horizontal ground extends on fore-and-aft direction, therefore can be limited on the bad road when mobile etc. be loaded in the above-mentioned bumper/spoiler retention tab 71 on the 75c of this junction surface supported 71g towards the top phenomenon of displacement significantly, can prevent dislocation such as radiator grid 1 and bumper/spoiler cover 3, and make the phenomenon of the appearance damage of front part of vehicle.

And, because by left and right end portions bending with above-mentioned retention tab support component 75, make it form the shape that section is roughly " コ " shape, can improve the rigidity of this retention tab support component 75, and, because part at the vehicle front that faces this retention tab support component 75, be among the 75a of joint portion, be formed with the flange part 75e that its left and right end portions is formed towards the place ahead bending, 75e, therefore can be when the place ahead of this retention tab support component 75 applies at impact load, because of this flange part 75e, 75e opens to left and right direction, makes the distortion towards the rear at an easy rate of this retention tab support component 75.Therefore, can prevent positively that impact load is applied on the crash sensor 34 that is installed in above-mentioned center rest 31 via above-mentioned retention tab support component 75 at that, and make the unusual phenomenon of waveform of crash sensor 34 outputs.

(the 3rd embodiment)

Figure 19 shows the related vehicle front body structure of the third embodiment of the present invention.That is, this Figure 19 is omitted for the diagram of other parts (for example, head lamp and fog lamp etc.) for showing the figure of the primary member of vehicle front portions such as radiator grid 1, bumper/spoiler cover 3 (front bumper cover parts) and car bonnet 8 briefly.In addition because the related vehicle front body structure of this 3rd embodiment and the difference of above-mentioned first, second embodiment only are the supporting construction of radiator grid 1, therefore in following explanation to marking prosign with a part.

Above-mentioned bumper/spoiler cover 3 is by the resin making sheet shape component set-up that forms the regulation shape that covers front part of vehicle, be provided with bumper/spoiler cover peristome 3a (peristome) in its downside central authorities, be provided with the bumper/spoiler cover lower openings 3b of portion as other vent at the more downside of this bumper/spoiler cover peristome 3a as vent.And, be formed with the grid recess 3c that above-mentioned radiator grid 1 is positioned at the middle body of the upper portion of above-mentioned bumper/spoiler cover 3, about this grid is with recess 3c, be formed with head lamp that head lamp is positioned with recess 3d, 3d.In addition, in above-mentioned Figure 19,3h is the cover portion of the upper portion of the above-mentioned bumper/spoiler cover peristome 3a of formation.

Above-mentioned bumper/spoiler cover peristome 3a is positioned the vehicle front of center beam of bumper 5, the leading section of the front side member 4,4 that this center beam of bumper 5 will be on the position, the left and right sides of vehicle-width direction extends towards the vehicle fore-and-aft direction links together, and is provided with the cap 3e that extends and cover vehicle front one side of this center beam of bumper 5 towards the vehicle-width direction in this peristome 3a.And, above-mentioned bumper/spoiler cover peristome 3a be provided with a plurality of rib 3f, the 3f that extend towards above-below direction with respect to above-mentioned cap 3e from the periphery of this bumper/spoiler cover peristome 3a ... (alar part), thereby, the rigidity of this cap 3e can be improved.

And, vehicle front one side at above-mentioned center beam of bumper 5, and be arranged on and dispose between the cap 3e of bumper/spoiler cover peristome 3a that (impact absorbing member (for example in order to absorb the urethane material 10 of impacting, with reference to Figure 20～Figure 25), dispose the aftermentioned center beam of bumper cap 91 that covers both at the upper surface of this urethane material 10 and center beam of bumper 5.By center beam of bumper cap 91 is set like this, can prevent to see the upper surface of center beam of bumper 5 and urethane material 10 from above-mentioned bumper/spoiler cover peristome 3a.

Above-mentioned radiator grid 1, comprise grill part 11 and installation portion 12, this grill part 11 tilts for its lower portion position than upper portion position by vehicle front and form that to see that from above central portion becomes in vehicle front one side converx roughly circular-arc, this installation portion 12 is installed in rear view of vehicle one side of this grill part 11, be connected on the radiator fixed frame 2 (radiator fixed frame) of the rear view of vehicle that is positioned at this radiator grid 1, this grill part 11 and installation portion 12 are connected and fixed by bolt (omitting diagram).In addition,, be formed with the car target car mark 11a of portion of expression producer at the substantial middle place of its vehicle-width direction, as Fig. 7, Figure 20 and Figure 22～shown in Figure 25 in above-mentioned grill part 11.

And, above-mentioned radiator grid 1, its upside is connected on the radiator fixed frame top 2a on above-mentioned radiator fixed frame 2 tops etc., and the grid of downside and above-mentioned bumper/spoiler cover 3 is with the periphery of recess 3c be bonded together (with reference to Figure 22).

Specifically, the installation portion 12 of above-mentioned radiator grid 1 has top board 12a, should form along the rear section of seeing roughly circular-arc grill part 11 from above by top board 12a, near on this vehicle-width direction of board 12a rear view of vehicle one side is formed with a plurality of (in the present embodiment, being two places) in order to this radiator grid 1 is connected mounting hole 12b, the 12b of radiator fixed frame top 2a.And, bolt inserted and run through in these mounting holes 12b, the 12b and mounting hole 2g, the 2g that is formed on radiator fixed frame 2 described later in, they are tightened up, above-mentioned radiator grid 1 and radiator fixed frame 2 are linked together.

And, as above-mentioned Fig. 7 and shown in Figure 20, being provided with at the both ends, the left and right sides of the grill part 11 of above-mentioned radiator grid 1 towards what rear view of vehicle extended and extending connecting portion 11b, 11b, mounting hole 11c is respectively formed at this and respectively extends among the connecting portion 11b.And, bolt is inserted and run through in these mounting holes 11c, the 11c, in the mounting hole (omitting diagram) of bumper/spoiler cover 3 and in the mounting hole (omitting diagram) of head lamp 7, they are tightened up, the both ends, the left and right sides of above-mentioned radiator grid 1 are connected on the car body.

Bottom in above-mentioned grill part 11, as above-mentioned Fig. 7 and shown in Figure 20, cross over the vehicle-width direction be provided with a plurality of cave 11d of portion, 11d ..., constitute the grid that is formed on above-mentioned bumper/spoiler cover 3 with protuberance 3g, the 3g of the periphery of recess 3c ... be entrenched in respectively the 11d of this cave portion, 11d ... in (with reference to Figure 22).Promptly, use the periphery of recess 3c at the grid of above-mentioned bumper/spoiler cover 3, with a plurality of cave 11d of portion, the 11d of the bottom that is arranged on above-mentioned grill part 11 ... the position be formed with accordingly a plurality of protuberance 3g, 3g towards the rear view of vehicle bending ..., these protuberances 3g, 3g ... be entrenched in from the place ahead respectively the above-mentioned cave 11d of portion, 11d ... in.

Above-mentioned radiator fixed frame 2 will be for will for example containing the integrally formed frame shape parts of resin material of reinforcement material such as glass fibre by spray-up method, as Figure 20 and shown in Figure 21, between the radiator fixed frame top 2a (top) that extends towards the vehicle-width direction, the 2b of longitudinal portion, the 2b (sidepiece) that extend towards the below respectively from the left and right end portions of this radiator fixed frame top 2a and the bottom that connects the 2b of these longitudinal portions, 2b at the radiator fixed frame bottom 2c that the vehicle-width direction is extended, and be formed with peristome 2d in their inboard.

And, facing above-mentioned peristome 2d in rear view of vehicle one side of above-mentioned radiator fixed frame 2 and dispose radiator 6 as cooling mechanism, it is fixed on this radiator fixed frame 2.The 2b of longitudinal component portion, the 2b of above-mentioned radiator fixed frame 2 is fastened on respectively on the left and right sides front side member 4,4, and therefore, above-mentioned radiator 6 becomes by the endways state that is arranged on car body, so that accept mobile wind with front surface from vehicle front.That is, above-mentioned radiator 6 is located in the rear view of vehicle of the bumper/spoiler cover peristome 3a that is arranged on bumper/spoiler cover 3, is cooled by the mobile wind that sucks from this bumper/spoiler cover peristome 3a.

In addition, in the 2b of longitudinal portion, the 2b of above-mentioned radiator fixed frame 2, than the part that is fastened on above-mentioned left and right sides front side member 4,4 respectively by under the position, be provided with in order to prevent closing plate 9,9 from the wind direction reversing of the hot blast of engine room.So, can positively prevent than the wind direction reversing from hot blast engine room in of center beam of bumper 5 by downside.For the part of leaning on upside than the part that is connected above-mentioned left and right sides front side member 4,4, as hereinafter described, can prevent from by the side seals 81,81 (sealing board) that is formed on radiator grid support component 40 to reverse from the wind direction of the hot blast in the engine room.

At the radiator fixed frame top 2a of above-mentioned radiator fixed frame 2,, be formed with in order to accommodate the lock resettlement section 2e of bonnet louver 21 at the middle body of its vehicle front one side as Figure 21 and shown in Figure 23.This lock resettlement section 2e form on the front surface of radiator fixed frame top 2a towards above opening the bag shape, bonnet louver 21 is being housed under its in-to-in state (with reference to Figure 23), is utilizing bolt 23,23 that the substrate 22 of this bonnet louver 21 is fastened on the 2f of front surface portion of formation lock resettlement section 2e and mounting flange 31c, the 31c last (with reference to Figure 21) of center rest described later 31.In addition, upside in the substantial middle portion of the 2f of this front surface portion, form so that the striker 8a (with reference to Figure 23) that is roughly the U font that is arranged on car bonnet 8 can be entrenched togather with above-mentioned bonnet louver 21 is formed with the otch (with reference to Figure 21) that this striker 8a inserted and ran through usefulness.

As Figure 21 and shown in Figure 22, radiator fixed frame top 2a at above-mentioned radiator fixed frame 2, be formed with mounting hole 12b, the 12b of the installation portion 12 of above-mentioned radiator grid 1 corresponding towards vehicle front outstanding protrusion 2h, 2h, and, be formed with mounting hole 2g, the 2g that runs through above-below direction at this protrusion 2h, 2h.Can fasten them together by bolt being inserted and running through mounting hole 12b, the 12b of these mounting holes 2g, 2g and above-mentioned radiator grid 1, above-mentioned radiator grid 1 is fixed on the radiator fixed frame 2.In addition, at above-mentioned radiator fixed frame top 2a, the face of its vehicle front one side, vehicle-width direction both ends are formed with respectively circular hole 2i, 2i towards the vehicle front opening, insert respectively in these circular holes 2i, the 2i towards protrusion 12c, the 12c (with reference to Fig. 7) that rear view of vehicle extends from the installation portion 12 of above-mentioned radiator grid 1.

And, dispose the center rest 31 of central portion of the vehicle-width direction of the lock resettlement section 2e that connects above-mentioned radiator fixed frame 2 and above-mentioned center beam of bumper 5 in the place ahead one side of the central portion of the vehicle-width direction of above-mentioned radiator fixed frame top 2a, as Figure 21 and shown in Figure 23.Specifically, one end of this center rest 31 is connected on the substrate 22 of the bonnet louver 21 in the above-mentioned lock resettlement section 2e, the other end is connected the rear vehicle end of above-mentioned center beam of bumper 5, so, the striker 8a that can block car bonnet 8 for bonnet louver 21 from the top impact load when chimeric.Therefore, can prevent the infringement that resin heat sink fixed frame 2 is caused because of 8 o'clock the impact of cover that kills engine by above-mentioned center rest 31 is set.

Above-mentioned center rest 31 is roughly the metallic component set-up of " コ " shape by section, constitutes position, bottom as center beam of bumper side installation portion 31b and likens position, upper end into radiator fixed frame side installation portion 31a to also by vehicle front, as shown in figure 28.That is, above-mentioned center rest 31 will be for seeing on above-below direction two installation portion 31a of straight extension almost, the shape that 31b links together from the side by the connecting portion that extends towards the top, at rear view of vehicle.

And, the above-mentioned center beam of bumper side installation portion 31b of above-mentioned center rest 31 by bolted on center beam of bumper 5, above-mentioned radiator fixed frame side installation portion 31a have from section for the body (center rest body) of " コ " shape towards about the mounting flange 31c, the 31c that extend, be fastened on the radiator fixed frame 2 via this mounting flange 31c, 31c by bolt.

And,, be provided with the crash sensor 34 that impact detection is used at the radiator fixed frame side installation portion 31a of above-mentioned center rest 31 as Figure 21 and shown in Figure 28.Specifically, dispose the left and right sides mounting flange 31c, the 31c that cover above-mentioned radiator fixed frame side installation portion 31a, one of them mounting flange 31c (in the present embodiment, from the front, be the left side mounting flange) the section of a part of vehicle front one side be roughly the cover 35 of " コ " shape, portion disposes above-mentioned crash sensor 34 within it.The part of this crash sensor 34 is connected on the above-mentioned mounting flange 31c, can detect the impact of passing to above-mentioned center rest 31.That is, because the center beam of bumper side installation portion 31b of the lower end side of above-mentioned center rest 31 is connected on the center beam of bumper 5, therefore the impact load that enters from this center beam of bumper 5 passes to crash sensor 34 via center rest 31.Thereby, can detect the impact load that is applied to center beam of bumper 5 sides by above-mentioned crash sensor 34, can detect collision.

In addition, above-mentioned cover 35 is configured on the mounting flange 31c of above-mentioned center rest 31 with being seen as " コ " shape from the side, and the flange part 35a that extends towards the top from the sidewall that is positioned at upside is by being bolted on this mounting flange 31c.

Dispose in order to radiator grid support component 40, as Figure 20 and shown in Figure 21 in the place ahead of above-mentioned center rest 31 from the above-mentioned radiator grid 1 of supported underneath.The parts of this radiator grid support component 40 for becoming one by resin-shaped, as shown in figure 29, roughly come the words of branch, constitute by radiator grid support portion 41 (cover support portion), side seals 81 (sealing board) and center beam of bumper cap 91, this radiator grid support portion 41 is in supported underneath radiator grid 1, from rear bar carrier cover 3, this side seals 81 is in order to prevent the wind direction reversing of the hot blast above above-mentioned center beam of bumper 5, and this center beam of bumper cap 91 covers the upper surface of this center beam of bumper 5.

Above-mentioned radiator grid support portion 41 is roughly the parts of " コ " shape for what form opening towards the rear from vehicle-width direction section, be configured on the vehicle-width direction to cross over the place ahead of the peristome 2d of radiator fixed frame 2, be fixed on sidepiece 2b, the 2b (about sidepiece) of this radiator fixed frame 2 by the installation portion 42,42 that is formed on vehicle-width direction two ends respectively.Specifically, above-mentioned radiator grid support portion 41 has cradle portion 43, bumper/spoiler cover support portion 44, lower wall portion 45 and side wall portion 46,46, this cradle portion 43 about installation portion 42, serve as a connection between 42 and towards front and back to expansion, this bumper/spoiler cover support portion 44 from the fore-end of this cradle portion 43 towards the place ahead and the below expand and go out, this lower wall portion 45 from the bottom of this bumper/spoiler cover support portion 44 towards rear extension, this side wall portion 46,46 are set to block by this cradle portion 43, the left and right sides of " コ " shape part that bumper/spoiler cover support portion 44 and lower wall portion 45 constitute.In addition, above-mentioned left and right sides installation portion 42,42 is connected in respectively on the rearward end of this side wall portion 46,46.

Above-mentioned cradle portion 43 forms along the lower end of above-mentioned radiator grid 1, and the middle body of vehicle-width direction is crooked towards the below depression.And, surface thereon, towards the vehicle-width direction be arranged side by side a plurality of (in the present embodiment, the being 5) outer ribs 47,47 of extending at fore-and-aft direction ... (rib).These outer ribs 47,47 ... form with identical from the outstanding projecting height of the upper surface of above-mentioned cradle portion 43, be formed with in the upper end of those rearward end on the vehicle-width direction, connect this outer ribs 47,47 ... between supporting bracket portion 80 (second cradle portion) (with reference to Figure 21 and Figure 29).And, in this supporting bracket portion 80, be mounted with above-mentioned radiator grid 1.

Specifically, above-mentioned supporting bracket portion 80 has upper plate portion 80a and the vertical 80b of wall portion, this upper plate portion 80a be arranged on above-mentioned outer ribs 47,47 ... rear end side and outstanding distolateral, so that between itself and above-mentioned cradle portion 43, form the space, this vertical wall 80b of portion the rear end side of this upper plate portion 80a be outer ribs 47,47 ... rear end side extend towards the below from this upper plate portion 80a.That is to say, above-mentioned cradle portion 43 is set to cover from the rear above-mentioned outer ribs 47,47 ..., when above-mentioned radiator grid support component 40 is configured in the below of radiator grid 1, the downside that above-mentioned supporting bracket portion 80 is bonded on this radiator grid 1.Thereby, can improve stability of strutting system from whole this radiator grid 1 of supported underneath.

By on above-mentioned cradle portion 43, be provided with so a plurality of outer ribs 47,47 ... rear end one side of those ribs is coupled together on the vehicle-width direction by supporting bracket portion 80, can improve each outer ribs 47,47 ... intensity, can improve the rigidity of above-mentioned cradle portion 43.And, by in supporting bracket portion 80, loading above-mentioned radiator grid 1, support its whole downside, can improve stability of strutting system.And, owing to support above-mentioned radiator grid 1 less than the supporting bracket portion 80 of above-mentioned cradle portion 43 by the width dimensions of fore-and-aft direction, therefore do not require the such higher surface accuracy when supporting with whole this cradle portion 43, the treating cost and the mould expense costs of manufacture such as (mold cost) of radiator grid support portion 41 can be reduced, productivity can be improved.

And, because forming above-mentioned radiator grid support portion 41 towards the rear, the section of opening is the shape of " コ " shape, at its two ends, left and right sides side wall portion 46,46 is set, above-mentioned radiator grid support portion 41 becomes the case shape (hexahedral shape) of opening towards the rear on the whole, therefore compare when only cradle portion being set, rigidity can be improved, above-mentioned radiator grid 1 can be more positively supported.

And, in above-mentioned radiator grid support portion 41, within it side be provided with above-mentioned cradle portion 43 on outer ribs 47,47 ... vehicle-width direction position corresponding a plurality of in side ribs 48,48 ... (interior side stringer).These interior side ribs 48,48 ... be set to cross over the face of rear one side of the lower surface of above-mentioned cradle portion 43, above-mentioned bumper/spoiler cover support portion 44 and the upper surface of above-mentioned lower wall portion 45, towards front and back to extension.By be provided with in the inboard of above-mentioned radiator grid support portion 41 like this strengthen with interior side rib 48,48 ..., can further improve the rigidity of this radiator grid support portion 41, can further improve the stability of strutting system of above-mentioned radiator grid 1.

And, as mentioned above, by side wall portion 46,46 being set, can prevent that the hot gas in the engine room from entering from the side, the left and right sides of radiator fixed frame 2, the phenomenon that the outer gas that is taken into peristome 3a from bumper/spoiler cover 3 mixes at above-mentioned radiator grid support component 40.

And, in above-mentioned radiator grid support component 40, the front end of above-mentioned cradle portion 41 extends near the back side (back) of the 3h of cover portion of bumper/spoiler cover 3, and above-mentioned bumper/spoiler cover support portion 44 is along the back side (back) of the 3h of this cover portion, extends towards the below (with reference to Figure 23～Figure 25).So,, improved its rigidity,, also can prevent the phenomenon that this bumper/spoiler cover 3 is out of shape significantly even therefore rearward be applied with bigger load because above-mentioned bumper/spoiler cover 3 is being supported from the rear by above-mentioned bumper/spoiler cover support portion 44.

In addition, above-mentioned side wall portion 46,46 and installation portion 42,42 also be provided with cross over both towards front and back to the strengthening rib 49,49 that extends ...Since by these strengthening ribs 49,49 ..., the rigidity of the fore-and-aft direction of above-mentioned radiator grid support portion 41 can be improved, so above-mentioned bumper/spoiler cover 3 can be more positively supported, can positively prevent of the distortion of this bumper/spoiler cover 3 towards the rear.

Above-mentioned side seals 81,81 is set on the position above the above-mentioned center beam of bumper 5 from the left and right sides installation portion 42,42 of above-mentioned radiator grid support portion 41 outstanding towards the place ahead respectively, sees from the front to form roughly " L " font.Promptly, above-mentioned side seals 81,81 has upper surface part 82 respectively and from a distolateral side surface part 83 of extending towards the below of this upper surface part 82, this side surface part 83 is positioned the foreign side of vehicle-width direction, form to become and isolating sidepiece 2b, the 2b of above-mentioned radiator fixed frame 2 and the dividing wall in the space between the bumper/spoiler cover 3 on the vehicle-width direction, as shown in figure 29.

By forming such side seals 81,81, can prevent positively that the interior hot gas of engine room from entering from the side of above-mentioned radiator fixed frame 2, the phenomenon (, in each figure, showing from the hot gas in the engine room) that the outer gas that is taken into peristome 3a from bumper/spoiler cover 3 mixes with arrow with reference to Figure 26 and Figure 27.

And, owing to the part that above-mentioned side seals 81,81 is formed the closer to its front end, offside in the shape of left and right sides foreign side, therefore can make the outer gas that flows into from peristome 3a, the 3b of above-mentioned bumper/spoiler cover 3 flow to radiator 6 in the peristome 2d that is configured in radiator fixed frame 2 effectively.

In addition, the lower portion of the side surface part 83,83 of above-mentioned side seals 81,81 is positioned respectively on the upper surface of above-mentioned center beam of bumper 5, as Figure 20 and shown in Figure 21.Therefore, the lower portion of above-mentioned side surface part 83,83 forms along concavo-convex such shape of the upper surface of above-mentioned center beam of bumper 5.And as described below, the flat part 92 by center beam of bumper cap 91 between the bottom of above-mentioned side seals 81,81 links together, and so, can improve the rigidity of the vehicle-width direction of this side seals 81,81.

Be formed with flange part 84,84 in the side surface part 83,83 of above-mentioned side seals 81,81 and the front end of upper surface part 82,82, respectively along the back side (back) (with reference to Figure 26 and Figure 27) of the bumper/spoiler cover 3 that is configured in the place ahead.So, can positively prevent the phenomenon of hot gas in the engine room from invading between the back side of the front end of above-mentioned side seals 81,81 and above-mentioned bumper/spoiler cover 3.

Above-mentioned center beam of bumper cap 91 is arranged on the downside of above-mentioned side seals 81,81, constitutes the upper surface that covers above-mentioned center beam of bumper 5.Specifically, above-mentioned center beam of bumper cap 91 has flat part 92, as Figure 20 and shown in Figure 21, this flat part 92 forms between the bottom with side seals 81,81 and links together, and, cover above-mentioned center beam of bumper 5 and be configured in the upper surface of the urethane material 10 of its place ahead one side, above-mentioned center beam of bumper cap 91 is by being connected the front surface of above-mentioned urethane material 10 towards the mounting flange portion 93,93,93 (embedding ends portion) of the many places that are arranged on the vehicle-width direction (in the present embodiment, being 3 places) of below extension from the front end of this flat part 92.

And for example shown in Figure 24, above-mentioned each mounting flange portion 93 is bonded on the front surface of this urethane material 10 by pin (pin) 97 under the state of the front surface that is positioned urethane material 10.So, can support front surface one side of above-mentioned urethane material 10 by above-mentioned center beam of bumper cap 91.Here, the back of above-mentioned urethane material 10 (back side) be provided with a plurality of (in the present embodiment, be two) outstanding protrusion 10a, the 10a towards the rear, by this protrusion 10a, 10a are inserted among the 5a of cave portion, the 5a of the front surface that is formed on above-mentioned center beam of bumper 5, it is installed on this center beam of bumper 5.Though only support above-mentioned urethane material 10 with respect to center beam of bumper 5 by the chimeric of above-mentioned protrusion 10a, 10a, front surface one side that might make urethane material 10 because of deadweight towards the place ahead and the below fall down, but by support front surface one side of this urethane material 10 by above-mentioned center beam of bumper cap 91, can positively prevent falling down of this urethane material 10 as mentioned above.

And, as mentioned above, because the such center beam of bumper cap 91 of upper surface that covers above-mentioned center beam of bumper 5 is set, when making in the peristome 3a of vehicle front bumper/spoiler cover 3, only can see this center beam of bumper cap 91, and can not directly see the upper surface of metal above-mentioned center beam of bumper 5, therefore can improve the attractive in appearance of front part of vehicle.And, as mentioned above, because above-mentioned center beam of bumper cap 91 connects together with the installation portion 42,42 that is installed in left and right sides sidepiece 2b, the 2b of radiator fixed frame 2 via above-mentioned side seals 81,81, therefore can not form under the situation of mounting hole etc., this center beam of bumper cap 91 is being installed on the assigned position on the center beam of bumper 5 at the upper surface of above-mentioned center beam of bumper 5.That is, can under such hurtful situation of the function to this center beam of bumper 5 such as the rigidity reduction that does not make above-mentioned center beam of bumper 5, cover the upper surface of this center beam of bumper 5, improve the attractive in appearance of front part of vehicle.

In addition, the upper surface of above-mentioned urethane material 10 is positioned than the upper surface of above-mentioned center beam of bumper 5 position by the below, and is corresponding therewith, and also the section of being formed with is poor at the flat part 92 of above-mentioned center beam of bumper cap 91.And above-mentioned planar portions 92 forms the upper surface that is positioned respectively with respect to center beam of bumper 5 and urethane material 10 apart from position predetermined distance, the top is arranged.And, between the upper surface of this center beam of bumper 5 of partial sum of the upper surface of the above-mentioned center beam of bumper 5 of covering in this flat part 92, dispose along the many places of above-mentioned vehicle-width direction padded coaming 111,111 ..., as shown in figure 23.These padded coamings 111,111 ... for example constitute by expanded material, as mentioned above, by configuration padded coaming 111,111 between the flat part 92 of center beam of bumper cap 91 and center beam of bumper 5 ..., can prevent that this flat part 92 from touching the phenomenon that center beam of bumper 5 produces abnormal sound etc. because of vibration waits.

And, as Figure 20 and shown in Figure 21, with below above-mentioned side seals 81,81, imbed the form in the gap between the 2b of longitudinal portion, the 2b that is formed on above-mentioned center beam of bumper 5 and above-mentioned radiator fixed frame 2, be provided with the sealing 94,94 that extends towards the rear from the both ends, the left and right sides of the rear end side of above-mentioned planar portions 92 at above-mentioned center beam of bumper cap 91.By such sealing 94,94 is set, can more positively prevent wind direction reversing from the hot gas in the engine room.

And for example shown in Figure 29, in the rearward end of the planar portions 92 of above-mentioned center beam of bumper cap 91, near the center rest cap 95 that is provided with the central authorities of vehicle-width direction in the peristome 101 (ventilation inlet) that is being formed between this planar portions 92 and the above-mentioned radiator grid support portion 41 towards above-below direction lower wall portion 45 that extend, that link this radiator grid support portion 41.This center rest cap 95 forms to such an extent that be wider than the above-mentioned center rest 31 that serves as a connection between the radiator fixed frame top 2a of above-mentioned center beam of bumper 5 and above-mentioned radiator fixed frame 2, is set to cover the place ahead one side (with reference to Figure 23) of this center rest 31.

Because center rest cap 95 is set like this, above-mentioned center rest 31 can not directly be seen from vehicle front, therefore can positively prevent to see metal this center rest 31, and diminish front part of vehicle phenomenon attractive in appearance from the peristome 3a of above-mentioned bumper/spoiler cover 3.

And, owing to couple together between the lower wall portion 45 of above-mentioned center rest cap 95 with the planar portions 92 of center beam of bumper cap 91 and radiator grid support portion 41, therefore can improve the rigidity of the above-below direction of the radiator grid support portion 41 that comprises this lower wall portion 45 from the middle body of the vehicle-width direction of the lower wall portion 45 of this radiator grid support portion 41 of supported underneath.

And, the same with above-mentioned center rest cap 95, rearward end in above-mentioned planar portions 92, towards the vehicle-width direction be provided with in above-mentioned peristome 101 lower wall portion 45 that extend, that link above-mentioned radiator grid support portion 41 along the vertical direction a plurality of (in the present embodiment, being 4) column connecting portion 96,96 ...By be provided with such connecting portion 96,96 ..., owing to can therefore can further improve the rigidity of the above-below direction of this radiator grid support portion 41 in the many places of vehicle-width direction from the lower wall portion 45 of the above-mentioned radiator grid of supported underneath support portion 41.

In addition, with above-mentioned connecting portion 96,96 ... form and be configured in the peristome 3a of bumper/spoiler cover 3 towards upper and lower to the rib 3f, the 3f that extend ... the position much at one, position of vehicle-width direction on, as shown in figure 27.That is, when from vehicle front, above-mentioned connecting portion 96,96 ... be hidden in bumper/spoiler cover 3 rib 3f, 3f ... in, be invisible state.Therefore, can be in the deterioration attractive in appearance that prevents front part of vehicle, prevent above-mentioned connecting portion 96,96 ... the phenomenon that flows of the outer gas that obstruction is taken into from bumper/spoiler cover peristome 3a.

As mentioned above, according to present embodiment, because at the installation portion 42,42 of the front face side of radiator fixed frame 2 configuration via the two ends that are arranged on the vehicle-width direction, be installed in the 2b of left and right sides longitudinal portion of this radiator fixed frame 2, the radiator grid support component 40 of 2b, by in this radiator grid support component 40 towards front and back to expanded stent portion 43 from supported underneath radiator grid 1, therefore can prevent that this radiator grid 1 is because of the phenomenon of deadweight towards the below bending.Thereby, can prevent the phenomenon of being out of shape significantly from the bumper/spoiler cover 3 of the above-mentioned radiator grid 1 of supported underneath, can prevent between this radiator grid 1 and car bonnet 8, to produce factitious gap etc., diminish the phenomenon attractive in appearance of front part of vehicle.

And, above-mentioned radiator grid support portion 41, comprise: bumper/spoiler cover support portion 44, lower wall portion 45 and side wall portion 46,46, this bumper/spoiler cover support portion 44 from the front end of cradle portion 43 towards the place ahead and the below extend, this lower wall portion 45 extends towards rear view of vehicle from the lower end of this bumper/spoiler cover support portion 44, this side wall portion 46,46 are set to block by above-mentioned cradle portion 43, the two ends of the vehicle-width direction of " コ " shape part that bumper/spoiler cover support portion 44 and lower wall portion 45 constitute, owing to become the case shape of opening towards the rear on the whole, therefore whole rigidity can be improved, above-mentioned radiator grid 1 can be more positively supported.

And, since in the inboard of above-mentioned radiator grid support portion 41 towards the vehicle-width direction be arranged side by side towards front and back to the reinforcement of extending with side rib in a plurality of 48,48 ... therefore the rigidity of this radiator grid support portion 41 can be further improved, above-mentioned radiator grid 1 can be more positively supported.

And, upper surface in the cradle portion 42 of above-mentioned radiator grid support portion 41, towards the vehicle-width direction be formed with side by side in front and back upwardly extending a plurality of outer ribs 47,47 ... by connect in the vehicle-width direction those outer ribs 47,47 ... the supporting bracket portion 80 of upper part of rear end side support above-mentioned radiator grid 1, therefore can support the whole downside of this radiator grid 1.And owing to compare with the situation that supports radiator grid 1 with entire bracket portion 42, area of contact is less, and desired surface accuracy is also not too high, therefore can improve the productivity of radiator grid support component 40.

And, because with the back side configuration of the bumper/spoiler cover support portion 44 of above-mentioned radiator grid support portion 41 along bumper/spoiler cover 3, come to support this bumper/spoiler cover 3 from the rear, therefore can improve the rigidity of the fore-and-aft direction of this bumper/spoiler cover 3, suppress the phenomenon that this bumper/spoiler cover 3 is out of shape towards the rear significantly.And, owing to be provided with towards front and back to the flank 49,49 that extends by side wall portion 46,46 and the installation portion 42,42 of crossing over above-mentioned radiator grid support portion 41, can further improve the rigidity of the fore-and-aft direction of this radiator grid support portion 41, therefore can more positively improve the rigidity of above-mentioned bumper/spoiler cover 3.

And, according to present embodiment, since the place ahead of radiator fixed frame 2 be provided with have be installed in this radiator fixed frame 2 about sidepiece 2b, the installation portion 42 of 2b, 42, with the upper surface that covers center beam of bumper 5 at this installation portion 42, the radiator grid support component 40 of the center beam of bumper cap 91 that serves as a connection between 42, therefore can can't see the upper surface of metallic center beam of bumper 5 from bumper/spoiler cover peristome 3a, can prevent the phenomenon of the appearance damage of front part of vehicle, and, because above-mentioned center beam of bumper cap 91 is via installation portion 42,42 and by the sidepiece 2b about above-mentioned radiator fixed frame 2,2b is supporting, therefore needn't mounting hole be set at above-mentioned center beam of bumper 5, can prevent that the rigidity of this center beam of bumper 5 from descending.

And, since the front end of above-mentioned center beam of bumper cap 91 be provided with towards below extend a plurality of mounting flange portion 93,93 ... this each mounting flange portion 93 is bonded on the front surface of the urethane material 10 of the front side that is positioned center beam of bumper 5 by pin 97, therefore new support component can be set in addition, and support front surface one side of this urethane material 10 by above-mentioned center beam of bumper cap 91, can positively prevent the phenomenon that this urethane material 10 is fallen down towards the place ahead.

And, owing to disposed the padded coaming 111 between the lower surface of the upper surface that is sandwiched in above-mentioned center beam of bumper 5 and above-mentioned center beam of bumper cap 91, even therefore for example vehicle on bad road when mobile etc. car body produce vibration etc., also can absorb shaking of these center beam of bumper caps 91, can prevent that this center beam of bumper cap 91 from touching center beam of bumper 5 and produce the phenomenon of abnormal sound by above-mentioned padded coaming 111.

And, since above-mentioned radiator grid support component 40 be formed with from the both ends of the vehicle-width direction of center beam of bumper cap 91 respectively towards above and the fore-and-aft direction side seals 81,81 of extending, therefore can under the situation of not reinstalling special-purpose parts, prevent wind direction reversing from the hot gas of engine room.And,, therefore can improve the rigidity of vehicle-width direction because above-mentioned side seals 81,81 links together on the vehicle-width direction by center beam of bumper cap 91.

And, owing to be provided with the radiator grid support portion 41 that between above-mentioned installation portion 42,42, serves as a connection at above-mentioned radiator grid support component 40, bar carrier cover 3 is come in bumper/spoiler cover support portion 44 by this radiator grid support portion 41 from the rear, therefore can improve the rigidity of this bumper/spoiler cover 3.And, since the radiator grid support portion 41 with this bumper/spoiler cover support portion 44 its lower wall portion 45 via connecting portion 96,96 ... link together with above-mentioned center beam of bumper cap 91, therefore the rigidity of this radiator grid support portion 41 can be improved, the rigidity of above-mentioned bumper/spoiler cover 3 can be more positively improved.

And, since with above-mentioned connecting portion 96,96 ... form and be arranged on bumper/spoiler cover peristome 3a rib 3f, 3f ... identical position, the position of vehicle-width direction on, therefore can improve the outward appearance of vehicle front, simultaneously, can prevent above-mentioned connecting portion 96,96 ... the phenomenon that becomes bigger ventilation resistance and the cooling performance of radiator 6 is reduced.

And, owing to not only center beam of bumper cap 91 is arranged on integratedly above-mentioned radiator grid support component 40, and side seals 81 and radiator grid support portion 41 etc. also is arranged on above-mentioned radiator grid support component 40 integratedly, therefore compare with the situation that they are installed respectively, can improve installation exercise.

(other embodiment)

Structure of the present invention is not limited to the various embodiments described above, also comprises all structures outside that.Promptly, in above-mentioned first embodiment, see from above, supplemental support parts 33 are formed roughly " V " font, its front is connected on mounting flange 31c, the 31c of center rest 31, but be not limited thereto, also can for example the supplemental support parts be formed bar-shapedly, it only is connected on one of them of above-mentioned mounting flange 31c, 31c.At this moment, can improve the rigidity of the vehicle fore-and-aft direction of grid support component 32.

And, in the various embodiments described above, also with anchor clamps 50 center rest location division 61 is set with respect to the location of radiator fixed frame 2 at bonnet louver 21, carry out the location of center rest 31 simultaneously, but be not limited thereto, also the working accuracy of mounting hole that is formed on mounting flange 31c, the 31c of above-mentioned center rest 31 can be brought up to the degree that can carry out the location of this center rest 31, the substrate 22 of itself and above-mentioned bonnet louver 21 is tightened together.That is, for example, after processing mounting holes, when forming the shape of center rest again etc. like that, in the time only can not correctly carrying out the location of this center rest 31, as present embodiment, center rest need be set with location division 61 with the position of the mounting hole of center rest 31.But, when the mounting hole of above-mentioned center rest 31 has been processed well by precision, when the position of enough this mounting holes of energy comes precision to carry out the location of center rest well, can not use anchor clamps etc., only carry out operation that itself and above-mentioned bonnet louver 21 are tightened together, just center rest can be installed on the design attitude.Therefore, can seek to make simplifying the structure and improving installation exercise of anchor clamps.

And, in the various embodiments described above, make radiator fixed frame 2 be resin forming product, but be not limited thereto, for example, also can make radiator fixed frame top is the metallic parts.

And, in above-mentioned the 3rd embodiment, be provided with lower wall portion 45 in radiator grid support portion 41, but be not limited thereto, also lower wall portion 45 can be set, constitute the radiator grid support portion by cradle portion 43, bumper/spoiler cover support portion 44 and side wall portion 46.

And, in above-mentioned the 3rd embodiment, be provided with in radiator grid support portion 41 strengthen with side rib in a plurality of 48,48 ..., 49,49 ... but be not limited thereto, also can not be provided with these ribs 48,48 ..., 49,49 ... make the thickness of the cradle portion 43, bumper/spoiler cover support portion 44, lower wall portion 45 and the side wall portion 46 that constitute above-mentioned radiator grid support portion 41 thicker, improve rigidity.

And, in above-mentioned the 3rd embodiment, make a plurality of outer ribs 47,47 that the upper surface in the cradle portion 43 of radiator grid support portion 41 forms ... projecting height certain, but be not limited thereto, also can change projecting height according to the shape of radiator grid 1 lower end.That is, also can not form the cradle portion 43 of above-mentioned radiator grid support portion 41, and merely be the plane along radiator grid 1 lower end, according to the lower end of this radiator grid 1 change above-mentioned outer ribs 47,47 ... projecting height.In addition, at that time, also can according to this outer ribs 47,47 ... projecting height, will be arranged on above-mentioned outer ribs 47,47 ... the supporting bracket portion 80 of rearward end form the shape of the middle body of vehicle-width direction towards the below depression.

And, in above-mentioned the 3rd embodiment, the a plurality of outer ribs 47,47 that are arranged on above-mentioned radiator grid support component 40 ... rearward end supporting bracket portion 80 is set, support above-mentioned radiator grid 1 by this supporting bracket portion 80, but be not limited thereto, also this supporting bracket portion 80 can be set, and by above-mentioned outer ribs 47,47 ... support the downside of radiator grid 1.At this moment, since radiator grid 1 by a plurality of outer ribs 47,47 of carrying out line contact with respect to this radiator grid 1 ... supporting, therefore with compare with the situation that face supports by supporting bracket portion 80, radiator grid support component 40 desired surface accuracies are become lower, can further improve the productivity of this radiator grid support component 40.

And, in above-mentioned the 3rd embodiment, in radiator grid support component 40, radiator grid support portion 41, side seals 81 and center beam of bumper cap 91 are formed as one, but be not limited thereto, also side seals 81 can be set in addition.

And, in above-mentioned the 3rd embodiment, side seals 81,81, radiator grid support portion 41 have been arranged on center beam of bumper cap 91 integratedly, but be not limited thereto, for example, also can be arranged on this center beam of bumper cap 91 with being installed in the installation portion that radiator fixed frame 2 installs, making side seals and radiator grid support portion is different parts.

Claims (26)

1, a kind of vehicle front body structure is characterized in that:

Comprise: the front bumper cover;

The radiator fixed frame is configured in the rear of above-mentioned front bumper cover;

Radiator grid, it is more forward than upper position for lower position to tilt, and this top is supported by above-mentioned radiator fixed frame and the bottom is supported by above-mentioned front bumper cover; And

The radiator grid support component is installed in above-mentioned radiator fixed frame and from the above-mentioned radiator grid of supported underneath.

2, vehicle front body structure according to claim 1 is characterized in that:

Comprise: radiator fixed frame top, be positioned at the top of above-mentioned radiator fixed frame,

Center beam of bumper, the position than above-mentioned radiator fixed frame top by down, about the front end of front side member between serve as a connection, and

Center rest serves as a connection between above-mentioned radiator fixed frame top and above-mentioned center beam of bumper, is made of metal;

Above-mentioned radiator grid, top is supported by above-mentioned bumper/spoiler cover by above-mentioned radiator fixed frame upper support and bottom, tilt for this lower position more forward than upper position;

Above-mentioned radiator grid support component, be the grid support portion to be arranged on above-mentioned center rest integratedly form, this grid support portion comprise the base end part that is connected this center rest, and the downside from this base end part towards above-mentioned radiator grid extend the joint support portion come from this radiator grid of supported underneath.

3, vehicle front body structure according to claim 2 is characterized in that:

Comprise the bumper/spoiler retention tab, this bumper/spoiler retention tab is configured to the back side that at least a portion is bonded on above-mentioned front bumper cover, and the bottom is fastened on above-mentioned front bumper cover, and top touches above-mentioned radiator grid from the below, support this radiator grid;

Above-mentioned grid support portion is set to above-mentioned joint support portion joins above-mentioned bumper/spoiler retention tab to from the below top, supports this bumper/spoiler retention tab.

4, vehicle front body structure according to claim 3 is characterized in that:

Surface in above-mentioned bumper/spoiler retention tab, be provided with a plurality of longitudinal ribs and cradle portion, these a plurality of longitudinal ribs extend, are arranged side by side on the vehicle-width direction towards fore-and-aft direction, touch the back side of above-mentioned front bumper cover, this cradle portion is linking together between the rearward end with this each longitudinal rib on the vehicle-width direction;

Above-mentioned radiator grid by above-mentioned cradle portion from supported underneath.

5, according to any described vehicle front body structure of claim 2～4, it is characterized in that:

Above-mentioned center beam of bumper, it is more forward than above-mentioned radiator fixed frame top to be configured to the position, and it is more forward than the position of radiator fixed frame upper side installation portion that above-mentioned center rest is configured to the position of center beam of bumper side installation portion;

Extend towards the top near the center beam of bumper side installation portion of above-mentioned center rest above-mentioned grid support portion.

6, vehicle front body structure according to claim 5 is characterized in that:

Supplemental support portion is arranged on above-mentioned center rest integratedly, and this supplemental support portion links together the radiator fixed frame upper side installation portion of the joint support portion in the above-mentioned grid support portion and part between the base end part and above-mentioned center rest.

7, vehicle front body structure according to claim 6 is characterized in that:

In above-mentioned grid support portion, be provided with than the forward side in above-mentioned joint support portion, towards the place ahead and the guide part that extends of below.

8, vehicle front body structure according to claim 7 is characterized in that:

In above-mentioned supplemental support portion, be provided with than with the forward side of connecting bridge of above-mentioned grid support portion, towards the place ahead of the joint support portion of above-mentioned grid support portion and second guide part that extend the top.

9, vehicle front body structure according to claim 6 is characterized in that:

In above-mentioned supplemental support portion, be provided with than with the forward side of connecting bridge of above-mentioned grid support portion, separate upward in joint support portion on the position of predetermined distance, towards limiting wall portion that fore-and-aft direction extends from above-mentioned grid support portion.

10, vehicle front body structure according to claim 6 is characterized in that:

The radiator fixed frame upper side installation portion of above-mentioned center rest has the flange part that extends to the left and right from the center rest body that extends towards above-below direction;

Above-mentioned supplemental support portion, see from above and to form vee shape, one leading section of this supplemental support portion is fixed on one of them flange part of above-mentioned left and right sides flange part, another leading section of this supplemental support portion is fixed on another flange part of this left and right sides flange part, and the base end part of above-mentioned supplemental support portion is fixed on above-mentioned grid support portion.

11, according to any described vehicle front body structure of claim 2～4, it is characterized in that:

Above-mentioned radiator fixed frame top is equipped with the part of the resin heat sink fixed frame of bonnet louver for utilizing anchor clamps, and above-mentioned center rest comes above-mentioned radiator fixed frame is positioned by the center rest location division that is arranged on these anchor clamps.

12, according to any described vehicle front body structure of claim 2～4, it is characterized in that:

Above-mentioned radiator fixed frame top is equipped with the part of the resin heat sink fixed frame of bonnet louver for utilizing anchor clamps, and the radiator fixed frame upper side installation portion and the above-mentioned bonnet louver of above-mentioned center rest tighten together.

13, according to any described vehicle front body structure of claim 2～4, it is characterized in that:

Crash sensor is installed in the radiator fixed frame upper side installation portion of above-mentioned center rest.

14, according to any described vehicle front body structure of claim 2～4, it is characterized in that:

In above-mentioned grid support portion and at least one support portion of supplemental support portion, be provided with the frangible portion more weak with respect to the load of fore-and-aft direction.

15, vehicle front body structure according to claim 1 is characterized in that:

Above-mentioned radiator fixed frame comprises top and left and right sides sidepiece at least;

Above-mentioned radiator grid support component, comprise the left and right sides installation portion of the left and right sides sidepiece that is installed in above-mentioned radiator fixed frame respectively, and form the bridge portion that connects between this installation portion forwards expand, from the cradle portion of the above-mentioned radiator grid of supported underneath.

16, vehicle front body structure according to claim 15 is characterized in that:

At the upper surface of above-mentioned cradle portion, be provided with towards front and back to extending and being arranged side by side in a plurality of ribs on the vehicle-width direction and second cradle portion that coupling together between the rearward end with this rib on the vehicle-width direction;

Above-mentioned radiator grid by above-mentioned second cradle portion from supported underneath.

17, vehicle front body structure according to claim 15 is characterized in that:

Above-mentioned front bumper cover, in the anterior position of above-mentioned cradle portion, from the height and position of this cradle portion towards the place ahead and the below extend;

The front end of the above-mentioned cradle portion of above-mentioned radiator grid support component is positioned near the back side of above-mentioned bumper/spoiler cover, and above-mentioned radiator grid support component comprises that also the back side from the front end of this cradle portion along above-mentioned bumper/spoiler cover is towards the place ahead and the bumper/spoiler cover support portion of extending, below.

18, vehicle front body structure according to claim 17 is characterized in that:

Above-mentioned radiator grid support component comprises the both ends of the vehicle-width direction that connects above-mentioned bumper/spoiler cover support portion respectively and the side wall portion of above-mentioned left and right sides installation portion.

19, vehicle front body structure according to claim 18 is characterized in that:

At above-mentioned side wall portion and above-mentioned installation portion, cross over both, be provided with towards front and back to the strengthening rib that extends.

20, according to claim 18 or 19 described vehicle front body structures, it is characterized in that:

Above-mentioned radiator grid support component comprises from the lower end of above-mentioned bumper/spoiler cover support portion towards rear extension and is connected the lower wall portion of above-mentioned side wall portion at the both ends of vehicle-width direction.

21, vehicle front body structure according to claim 20 is characterized in that:

Above-mentioned radiator grid support component, form the shape that the section of opening towards the rear is roughly " コ " shape by cradle portion, bumper/spoiler cover support portion and lower wall portion, be provided with in the inboard cross over above-mentioned cradle portion, bumper/spoiler cover support portion and lower wall portion and towards front and back to the interior side stringer that extends.

22, vehicle front body structure according to claim 15 is characterized in that:

Above-mentioned radiator grid support component, comprise be arranged on apart from this lower wall portion have predetermined distance the below, with the center beam of bumper cap that below above-mentioned lower wall portion, forms ventilation inlet and connecting portion that this center beam of bumper cap and above-mentioned lower wall portion are linked together.

23, vehicle front body structure according to claim 22 is characterized in that:

In the front side of center beam of bumper, dispose the impact absorbing member that side is overleaf supported by this center beam of bumper;

Above-mentioned center beam of bumper cap, the front end that forms this center beam of bumper cap is positioned the front end of above-mentioned impact absorbing member, this front end be provided with along the vehicle-width direction a plurality of towards below extend and be bonded on the front face of above-mentioned impact absorbing member the junction surface.

24, vehicle front body structure according to claim 22 is characterized in that:

Between center beam of bumper and above-mentioned center beam of bumper cap, dispose padded coaming.

25, vehicle front body structure according to claim 22 is characterized in that:

Above-mentioned radiator grid support component comprises the sealing board, and the sealing board extends towards the top from the both ends of the vehicle-width direction of center beam of bumper cap, forms vertical wall between the sidepiece of above-mentioned radiator fixed frame and above-mentioned front bumper cover.

26, vehicle front body structure according to claim 22 is characterized in that:

At the peristome of above-mentioned front bumper cover, be provided with the alar part that extends towards above-below direction;

Above-mentioned radiator grid support component, be included between the installation portion of the above-mentioned left and right sides cover support portion of the cover portion on the peristome top that serves as a connection, supports above-mentioned front bumper cover, on the position identical with the position of the vehicle-width direction of above-mentioned alar part, be connected the connecting portion of above-mentioned center beam of bumper cap and cover support portion with the position that is arranged on the vehicle-width direction with this bridge portion.

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