CN1814490A - Vehicle front body structure - Google Patents
Vehicle front body structure Download PDFInfo
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- CN1814490A CN1814490A CN 200510134311 CN200510134311A CN1814490A CN 1814490 A CN1814490 A CN 1814490A CN 200510134311 CN200510134311 CN 200510134311 CN 200510134311 A CN200510134311 A CN 200510134311A CN 1814490 A CN1814490 A CN 1814490A
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Abstract
A car body front structure is capable of suitably securing the rigidity of a wheel clearing part and adjusting the strength of the joint portion so as to adequately absorb the impact load. This car body front structure forms a right wheel clearing part on the outer wall side of a right front side frame. The right wheel clearing part forms a recess on an outer wall. A lower outer wall bead protruding toward an inner wall is formed in a lower part of the recess in a state of extending in the longitudinal direction of a car body, and a lower inner wall bead protruding toward the lower outer wall bead is formed on the inner wall. A joining part is fixed, for example, by spot welding in a state of allowing the lower outer wall bead to abut on the lower inner wall bead. The right front car frame at the front part of the car body is an integration of the right front car frame part and the right back car frame part, which are butt jointed by the back edge of the back back edge of the right front frame part and the front edge of the right back frame part. And the butt joint position is welded to a joining part by laser. The installation bracket for installing the break flow path is transversely arranged at the joining part. The front and back parts of the jointing part are jointed at the front and back parts of the installing bracket.
Description
Technical field
The present invention relates to vehicle body front structure, relate in particular to a kind of vehicle body front structure that is provided with wheel yielding portion, this wheel yielding portion can prevent anti-clockwise rotation or dextrorotary wheel and front side vehicle frame interference.
The invention still further relates to following a kind of vehicle body front structure, wherein, several frame parts that constitute the sidecar frame of vehicle body are bonded together, and it is as a whole by the mode of welding each docking site to be bonded into.
Background technology
Open the vehicle body front structure of having announced a kind of automobile among the flat 8-108863 (patent documentation 1) the spy, wherein, about the front side vehicle frame extend along the vehicle body fore-and-aft direction, at arranged outside the near front wheel of front left side vehicle frame, and at the arranged outside off front wheel of forward right side vehicle frame.
Based on figure below patent documentation 1 is described below.
Fig. 9 is the instruction diagram of basic comprising in the past.
The structure of vehicle body front structure 200 is, left and right front side vehicle frame 201,201 extends along the vehicle body fore-and-aft direction, upside raised line 202,202 and downside raised line 203,203 extend along the vehicle body fore-and-aft direction at the substantial middle position of front side vehicle frame 201,201, engine mission device 205 is arranged between the left and right front side vehicle frame 201,201, left side front-wheel 206 is arranged on the outside of front left side vehicle frame 201, and off front wheel 206 is arranged on the outside of forward right side vehicle frame 201.
Vehicle body front structure 200 by being arranged on raised line 202..., the 203... along the extension of vehicle body fore-and-aft direction on the left and right front side vehicle frame 201,201, can be adjusted the buckling strength of left and right front side vehicle frame 201,201.
When the front-wheel 206,206 to left and right side carries out steering operation, for the front-wheel 206,206 that makes left and right side does not interfere with left and right front side vehicle frame 201,201 respectively, on the left and right front side vehicle frame 201,201 of vehicle body front structure 200, form the wheel yielding portion (being recess) of front-wheel 206,206.
In order to ensure the rigidity of this wheel yielding portion, in wheel yielding portion, form raised line 202..., 203....
People wish to obtain a kind of rigidity that both can further guarantee this wheel yielding portion, can improve the technology of its rigidity again simply.
Open among the flat 9-221060 (patent documentation 2) the spy and to have announced a kind of technology, wherein, in the vehicle frame that constitutes vehicle body, several frame parts that are under the mated condition are integral by laser welding.
Vehicle frame formation in the patent documentation 2 comprises: front vehicle frame parts, central frame part and back frame part, the front and back ends of central authorities' vehicle frame engages with forward and backward frame part respectively, with the front end of front vehicle frame components laser welded at central frame part, and, with back frame part laser welding in the rear end of central frame part, thereby become one.
But, when this vehicle frame is subjected to impact effect, need consider the problem of stress concentration at the junction surface after the laser welding.
Because the junction surface upper stress is concentrated, need work hard in that vehicle frame is absorbed on the impact load better.
Therefore, hope can be adjusted the intensity at junction surface simply, absorb the technical applicationization of impact load effectively.
Summary of the invention
The object of the present invention is to provide a kind of vehicle body front structure, this vehicle body front structure can further be guaranteed the rigidity of wheel yielding portion simply.
Another object of the present invention is to provide a kind of vehicle body front structure, and it can be adjusted the intensity at junction surface simply and absorb impact load effectively.
Technical scheme 1 described vehicle body front structure, wherein, wheel is arranged on the outer wall side of the front side vehicle frame of closed section structure, when this wheel anti-clockwise rotation or right-hand revolution, interfere for fear of itself and front side vehicle frame, form yielding portion at above-mentioned outer wall place, it is characterized in that: above-mentioned wheel yielding portion and wheel shape form recess accordingly, form at this recess place to the fore-and-aft direction extension of the outer wall raised line of inwall protuberance along vehicle body; On the inwall of above-mentioned front side vehicle frame, be formed with inwall raised line to above-mentioned outer wall raised line direction protuberance; The outer wall raised line is to fix with the state of this inwall raised line butt.
Here, owing on the vehicle frame of front side, form recess, so in the vehicle frame of front side, it is narrower that the closed section of formation wheel yielding portion and other closed section structure are compared its width as wheel yielding portion.
In technical scheme 1, in wheel yielding portion, form the outer wall raised line, on the inwall of front side vehicle frame, form the inwall raised line, the outer wall raised line is to fix with the state of inwall raised line butt.
Therefore,, can make wheel yielding portion integrated simply, so just can further guarantee the rigidity of wheel yielding portion at the inwall place because outer wall raised line butt is bonded on the inwall raised line.
So, in the vehicle frame of front side, can make the rigidity of the narrower closed section structure of width identical with the rigidity of the cross-section structure of other wider width.
In addition, raised line refers to the protrusion that for example is used to strengthen parts such as sheet material and forms on sheet material.
Technical scheme 2 described vehicle body front structures, wherein, several frame parts that constitute the sidecar frame of vehicle body are bonded together, and it is as a whole by the mode of welding each docking site to be bonded into, and it is characterized in that: will be used to support the installation bracket that is equipped on the parts on the above-mentioned vehicle body and be configured in above-mentioned junction surface in the mode across the junction surface behind the above-mentioned joint; The position, front and back of installation bracket is bonded on respectively on the position, front and back at this junction surface.
Like this, just can reinforce the junction surface, simply the intensity at junction surface be adjusted by installation bracket.
In addition, owing to reinforce the junction surface, just can change the thickness of slab of sidecar frame, thereby can make the lightweight of sidecar frame by installation bracket.
In addition, because installation bracket is also used as the reinforcement feature at junction surface, therefore just there is no need to establish in addition the reinforcement feature at new junction surface.
Therefore, quantity that can limiting part reduces the cost.
Technical scheme 3 described vehicle body front structures, above-mentioned installation bracket are that above-mentioned installation bracket is the carriage that is used to support the braking stream; This installation bracket is arranged on and is used to dodge wheel and the recess established in the above-mentioned sidecar frame.
Here, when wheel steering, do not interfere, on the sidecar frame, be provided as the recess of wheel yielding portion with the sidecar frame in order to make wheel.
On the other hand and since brake equipment be arranged on wheel near, braking stream from oil pressure to brake equipment that supply with is supported by near the sidecar frame the wheel.
Like this, the braking stream just is mounted bearing bracket.Therefore, installation bracket just can be arranged on the recess of sidecar frame.
Because installation bracket has been arranged on the recess of sidecar frame, installation bracket is suitable apart from the distance of wheel, therefore, can simply adjust the steering angle that makes it to wheel and reach desirable state.
Technical scheme 1 described vehicle body front structure, it is integrated at the inwall place wheel can be made a concession portion, and can further guarantee the rigidity of wheel yielding portion simply.
In technical scheme 2,, can adjust simply the intensity at junction surface so have, and can absorb the advantage of impact energy fully owing to reinforce the junction surface by installation bracket.
Description of drawings
Fig. 1 is the block diagram of vehicle body front structure of the present invention.
Fig. 2 is the birds-eye view of vehicle body front structure of the present invention.
The block diagram of Fig. 3 for concerning between vehicle body front structure of the present invention and front side wheel.
Fig. 4 is the block diagram of the forward right side vehicle frame of vehicle body front structure of the present invention.
Fig. 5 is the exploded perspective view of the forward right side vehicle frame of vehicle body front structure of the present invention.
Fig. 6 is the section-drawing along 6-6 line sectility among Fig. 4.
Fig. 7 is the section-drawing along 7-7 line sectility among Fig. 4.
Fig. 8 is the instruction diagram of loading transfer situation when applying impact load on vehicle body front structure of the present invention.
Fig. 9 is a prior art basic comprising instruction diagram.
The specific embodiment
Based on accompanying drawing preferred forms of the present invention is described below.Wherein, all according to driver institute apparent direction, Fr is the front side for " preceding ", " back ", " left side ", " right side ", and Rr is a rear side, and L is the left side, and R is the right side.
Fig. 1 is the block diagram of vehicle body front structure of the present invention, and Fig. 2 is the birds-eye view of vehicle body front structure of the present invention.
The structure of vehicle body front structure 10 is as follows, constitute front side, the left and right sides vehicle frame 11 of front vehicle frame 10A, 12 distances of stipulating are at interval extended along the vehicle body fore-and-aft direction, left side underframe 13 from the rear end 11a of front left side vehicle frame (sidecar frame) 11 to the vehicle body rear extension, right underframe 14 from the rear end 12a of forward right side vehicle frame (sidecar frame) 12 to the vehicle body rear extension, engine mission device 15 is horizontally installed on a left side, forward right side vehicle frame 11, in the middle of 12, fore sub frame 16 is installed in a left side, forward right side vehicle frame 11,12 bottom, engine mission device 15 carries on fore sub frame 16, and engine mission device 15 is installed in a left side, forward right side vehicle frame 11, on 12.
In front left side vehicle frame 11, left front frame part 21 is along vehicle body fore-and-aft direction horizontal-extending, and left back frame part 22 blows slowly to the position horizontal-extending near vehicle body center 23 towards the vehicle body rear from the rear end 21a of left front frame part 21.
Front left side vehicle frame 11 is by upper and lower surperficial 51,52, and outer wall 53 and inwall 54 form an osed top section.
In front left side vehicle frame 12, right front frame part (frame part) 25 is along vehicle body fore-and-aft direction horizontal-extending, and right back frame part (frame part) 26 blows slowly to the position horizontal-extending near vehicle body center 23 towards the vehicle body rear from the rear end 25a of right front frame part 25.
Forward right side vehicle frame 12 is by upper and lower surperficial 56,57, and outer wall 58 and inwall 59 form an osed top section.
Be provided with left front installation bracket 28 in the bottom of left front frame part 21, be provided with right front installation bracket 29 in the bottom of right front frame part 25.
The left front end 16a of fore sub frame 16 is ended on left front installation bracket 28 by the screw card, and the right front end 16b of fore sub frame 16 is ended on right front installation bracket 29 by the screw card.
Left front frame part 21, the width at its main position are W1, and the width of its rear end 21a is W2.The relation of W1 and W2 is: W1＞W2.
Left back frame part 22, the width of its front end 22a is W2.
The width W 2 of the rear end 21a of left front frame part 21 and the front end 22a of left back frame part 22 is less, so, left side front-wheel (wheel) 20a right-hand turning in, owing to guaranteed wheel yielding portion (wheel yielding portion) 24, the leading section of left side front-wheel 20a can not interfere with the front end 22a of back frame part 22.
The speed changing portion 31 of engine mission device 15 is installed on this front end 22a by speed change connecting element 33.
In addition, front-wheel 20a in left side is arranged on outer wall 53 sides of front left side vehicle frame 11.
Right front frame part 25, the width at its main position are W1, and the width of rear end 25a is W2.The relation of W1 and W2 is: W1＞W2.
Right back frame part 26, the width of its front end 26a is W2.
The width W 2 of the rear end 25a of right front frame part 25 and the front end 26a of right back frame part 26 is less, so, right side front wheel (wheel) 20b left-handed turning in, owing to guaranteed wheel yielding portion (wheel yielding portion) 27, the leading section of right side front wheel 20b can not interfere with the front end 26a of back frame part 26.
The speed changing portion 32 of engine mission device 15 is installed on this front end 26a by speed change connecting element 34.
In addition, right side front wheel 20b is arranged on outer wall 58 sides of forward right side vehicle frame 12.
As mentioned above, left back frame part 22 extends to the position near vehicle body center 23 slowly towards the vehicle body rear, and right back frame part 26 extends to the position near vehicle body center 23 slowly towards the vehicle body rear.
Therefore, in left and right back frame part 22,26, position (to call " position, rear " in the following text) 22b, the 26b at the rear by engine mission device 15 have formed the impact absorption part 35 that roughly is " eight " word shape.
Position, the rear 22b that constitutes the left side of impact absorbing member 35 is provided with the left center mounting bracket 37 of giving prominence to vehicle body center 23.
And position, the rear 26b that constitutes the left side of impact absorbing member 35 is provided with the left center mounting bracket 38 of giving prominence to vehicle body center 23.
In fore sub frame 16, the left installation position 16e at the rear of engine mission device 15 installs base portion 43b in the mode that can cut off via a left link 43a and a left side and is connected on the left center mounting bracket 37.
In fore sub frame 16, the right installation position 16f at the rear of engine mission device 15 is connected on the right median installation bracket 38 via right link 45a and the right base portion 45b that installs in the mode that can cut off.
Left side underframe 13 from the rear end 11a of left back frame part 22 to its medium position to vehicle body back lower place diagonally extending, begin to vehicle body rear horizontal-extending from medium position.
Right underframe 14 from the rear end 12a of right back frame part 26 to medium position to vehicle body back lower place diagonally extending, begin to vehicle body rear horizontal-extending from medium position.
23 sides are provided with left back installation bracket 41 at the vehicle body center of left underframe 13, and 23 sides are provided with right back installation bracket 42 at the vehicle body center of right underframe 14.
The low cross member of frame 44 of buffering is across on left and right underframe 13,14.The rear portion of left and right rear mounting bracket 41,42 is provided with thereon in the mode with low cross member of frame 44 one of this buffering.
Here, above-mentioned front vehicle frame 10A is mainly by left and right front side vehicle frame 11,12, and the low cross member of frame 44 of left and right underframe 13,14 and buffering constitutes.
The left back end 16c of fore sub frame 16 is ended on left back installation bracket 41 by the screw card.And left tray 17 is ended on the left part 44a of the low cross member of frame 44 of buffering by the screw card.Left tray 17 is installed on the left back end 16c.
In addition, the right back end 16d of fore sub frame 16 is ended on right back installation bracket 42 by the screw card.And right carriage 18 is ended on the right part 44b of the low cross member of frame 44 of buffering by the screw card.Right carriage 18 is installed on the right back end 16d.
Therefore, fore sub frame 16 is installed in the bottom of front vehicle frame 10A.
Front side vehicle frame 16 is for roughly becoming the framework of rectangle, wherein, its left and right subframe 46,47 extends along left and right front side vehicle frame 11,12 respectively, the leading section of left and right subframe portion 46,47 links into an integrated entity by fore sub frame crossbeam 48, and the rearward end of left and right subframe portion 46,47 links into an integrated entity by Rear secondary frame for vehicle crossbeam 49.
Here, left and right front side vehicle frame 11,12 is the parts of left and right symmetry, below, forward right side vehicle frame 12 is described, holding concurrently describes front left side vehicle frame 11.
The block diagram of Fig. 3 for concerning between vehicle body front structure of the present invention and the front side wheel, represent right side front wheel 20b left-handed turning to state.
Forward right side vehicle frame 12 is to make right front bracket component 25 and the right back frame part 26 integrated structures that form in the following way, promptly, dock the trailing edge 25b of right front frame part 25 and the leading edge 26c of right back frame part 26, and make this docking site joint form junction surface 94 by laser welding.
Right side wheel yielding portion 27,58 places are formed with recess 61 at outer wall.
Therefore, in right front frame part 25, the position relative with the preceding upper lateral part of right side front wheel 20b, that is, the width W 2 of the rear end 25a of right front frame part 25 is less.
Because the width W 2 of the rear end 25a of right front frame part 25 is less, when right side front wheel 20b left-handed turning to the time, the preceding upper lateral part of right side front wheel 20b can not interfere with outer wall 58.
In addition, the width of the front end 26a of right back frame part 26 also is W2.
Below by Fig. 4, Fig. 5 the structure of right wheel yielding portion 27 is elaborated.
Fig. 4 is the block diagram of the forward right side vehicle frame of vehicle body front structure of the present invention, and Fig. 5 is the exploded perspective view of the forward right side vehicle frame of vehicle body front structure of the present invention.
Right front frame part 25 is the parts of closed section structure, is for example engaged by spot welding with preceding inner part 64 by preceding outside parts 63 to form.
Before outside parts 63 on its preceding outer wall 58a, be formed with the recess 61 of right wheel yielding portion 27, what form on recess 61 extends to upper and lower outer wall raised line (the outer wall raised line) 65,66 of the inwall 59a protuberance fore-and-aft direction along vehicle body.
In addition, preceding outside parts 63 comprise: along the crooked laterally welding bar 68 of outer wall upper limb 63a of the front side of recess 61; Along the crooked to the inside curve 69 of the outer wall upper limb 63b of the rear side of recess 61; The welding bar 71 that extends upward from this curve 69.
And preceding outside parts 63 have the crooked to the inside curve 72 along outer wall lower edge 63c, reach the welding bar 73 that extends from this curve 72 downwards.
Preceding inner part 64 is formed with the inwall raised line (inwall raised line) 75,76 of outer wall raised line 65,66 directions protuberance up and down on preceding inwall 59a.
In addition, preceding inner part 64 has the curved upper surface 56a laterally at the upper limb 64a of preceding inwall 59a, and at the crooked laterally preceding lower surface 57a of the lower edge 64b of preceding inwall 59a.
Preceding upper surface 56a is corresponding with the recess 61 of preceding outer wall 58a, has formed upper surface recess 77, and has had the welding bar 78 that extends upward from the edge of upper surface recess 77.
Preceding lower surface 57a is corresponding with the recess 61 of preceding outer wall 58a, has formed lower surface curved recessed portion 79, and has had the welding bar 81 that extends from the edge of lower surface curved recessed portion 79 downwards.
The welding bar 74 of welding bar 68 and upper surface 56 engages by spot welding, welds bar 71 and welds bar 78 and engage by spot welding.
And, welding bar 73 with weld bar 81 and engage by spot welding.
Like this, just formed the right front frame part 25 of closed section structure.
Right back frame part 26 is the parts of closed section structure, is for example engaged by spot welding with back inner part 84 by the outside, back parts 83 to form.
The outside, back parts 83 comprise: along the crooked to the inside curve 86 of the upper limb of back outer wall 58b; The welding bar 87 that extends upward from this curve 86; Along the crooked to the inside curve 88 of the lower edge of back outer wall 58b; The welding bar 89 that extends downwards from this curve 88.
Back inner part 84 comprises: from the crooked to the inside back upper surface 56b of the upper limb of back inwall 59b; The welding bar 91 that extends upward from the edge of back upper surface 56b; From the crooked laterally back lower surface 57b of the lower edge of back inwall 59b; The welding bar 92 that extends downwards from the edge of back lower surface 57b.
Welding bar 86 engages with 91 spot welding of welding bar, and welding bar 89 engages with 92 spot welding of welding bar.
Like this, just formed the right back frame part 26 of closed section structure.
The front edge 26c of right back frame part 26 docks with the back edge 25b of right front frame part 25, and the mode of docking site by laser welding engaged formation junction surface 94 and then obtain forward right side vehicle frame 12.
In addition, above-mentioned front and back upper surface 56a, 56b are the component parts of upper surface 56, and the lower surface of front and back is the component parts of lower plane 57.
And outer wall 58a, the 58b of above-mentioned front and back is the component parts of outer wall 58, and inwall 59a, the 59b of front and back is the component parts of inwall 59.
The front 95a of installation bracket 95 is bonded on the front 96 at junction surface 94.And the rear 95b of installation bracket 95 is bonded on the rear 97 at junction surface 94.
In forward right side vehicle frame 12, interfere and installation bracket 95 is arranged on the recess 61 in order to prevent installation bracket 95 and right side wheels 20b (with reference to Fig. 3).
Therefore installation bracket 95 can be arranged on installation bracket 95 on the recess 61 for being used to support the parts of braking pipe fitting 98.
Like this, because installation bracket 95 has been arranged on the recess 61, installation bracket can keep suitable distance with right side wheels 20b, makes it turn over suitable angle so just can adjust simply right side wheels 20b.
This installation bracket 95 comprises: be welded on the base portion 101 on the outer wall 58; From the horizontally extending laterally extension 102 in the lower end of base portion 101; Be connected the stiffening piece 103 on the anter of the anter of extension 102 and base portion 101.
In addition, the rear 95a of base portion 101 for example is combined near the junction surface 94 in the right back frame part 26 the position (rear at junction surface) 97 by spot weld.
The outside thread (not having diagram) of braking pipe fitting 98 is inserted among the mounting hole 102a, then nut 104 is screwed on from the threaded portion that extension 102 is given prominence to.
As shown in Figure 4, braking pipe fitting 98 is the parts that transmit oil pressure along the direction of arrow.By this hydraulic operation brake cylinder (not having diagram), and, brake disc is braked by brake strap by this brake cylinder extrusion brake strap.
On the preceding upper surface 56a of right wheel yielding portion 27, form upper surface recess 77, on preceding lower surface 57a, form lower surface curved recessed portion 79, copy the shape of upper surface recess 77 and lower surface curved recessed portion 79 to form recess 61 part of preceding outer wall 58a, the shape of the corresponding right side wheels 20b of bottom 61a (with reference to Fig. 3) of this recess 61 is caved in.
And, right side wheel yielding portion 27, on the 61a of the bottom of its recess 61, be formed with the following outer wall raised line (outer wall raised line) 66 that swells to inwall 59 with the state that extends along the vehicle body fore-and-aft direction, on inwall 59, be formed with the following inwall raised line (inwall raised line) 76 of downward outer wall 66 protuberances, following inwall raised line 76 and following outer wall raised line are to 66 butts, and junction 106 is for example fixed by spot welding.
And, in its recess 61, above the following outer wall raised line 66 of right wheel yielding portion 27, be provided with outer wall raised line 65.
Fig. 6 is the section-drawing along Fig. 4 center line 6-6 sectility of the present invention.
And, the rear 95b spot weld of base portion 101 is combined in the rear 97 at junction surface 94, that is, and near the junction surface 94 of right back frame part 26.
Like this, just can reinforce, can adjust simply the intensity at junction surface 94 by 95 pairs of junction surfaces 94 of installation bracket.
And, owing to reinforce, just can change the thickness of slab of forward right side vehicle frame 12 by 95 pairs of junction surfaces 94 of installation bracket, can make 12 lightweights of forward right side vehicle frame.
In addition, owing to the reinforcement feature that installation bracket 95 is also used as junction surface 94, so just there is no need to be provided for reinforcing the new reinforcement feature at junction surface 94.
Fig. 7 is the section-drawing along Fig. 4 center line 7-7 sectility of the present invention.
The recess 61 of right wheel yielding portion 27, its top 61b roughly is vertical shape, drops to welding bar 73 from the lower end of top 61b, and close to vehicle body center 23 (with reference to Fig. 2) slowly.
Then, the bottom 61a with recess 61 presses close to preceding inwall 59a.The following outer wall raised line 66 of bottom 61a just can be connected on the following inwall raised line 76 of preceding inwall 59a like this.
Following outer wall raised line 66 is for example fixed by spot welding with following inwall raised line 76.
Therefore, as long as carry out following outer wall raised line 66 butts are bonded on down shirtsleeve operation like this on the inwall raised line 76, just can right wheel yielding portion 27 and preceding inwall 59a is integrated.
Like this, just can further guarantee the rigidity of right wheel yielding portion 27.
In addition, recess 61 lower end of the 61b of portion from it drops to welding bar 73, and slowly approaching to vehicle body center 23 (with reference to Fig. 2), like this, the central portion 61c and the bottom 61a of recess 61 is formed the shape similar with the preceding upper lateral part of right side front wheel 20b.
Like this, can be only the position of recess 61 necessity be dwindled, guarantee the rigidity of forward right side vehicle frame 12 fully.
Below, based on the effect of accompanying drawing 8 explanation vehicle body front structures 10.
Fig. 8 (a) and (b) are the transmission instruction diagram of load when applying impact load on vehicle body front structure of the present invention.
In (a), impact load F along arrow to the vehicle body rear on the front end 11b, the 12b that act on left and right front side vehicle frame 11,12 (front left side vehicle frame 11 with reference to figure (b)).
In (b), following outer wall raised line 66 is bonded on down on the inwall raised line 76 (with reference to Fig. 7), and as shown in Figure 7, right wheel yielding portion 27 and preceding inwall 59a are integrated, has further guaranteed the rigidity of right wheel yielding portion 27.
Therefore, in forward right side vehicle frame 12, just can make the rigidity of the narrower closed section structure of width with right wheel yielding portion 27 identical with the rigidity of the closed section structure of other wider width.
And, reinforce by 95 pairs of junction surfaces 94 of installation bracket, can adjust the intensity at junction surface 94.
Like this, owing to can further guarantee the rigidity of right wheel yielding portion 27, and, can adjust the intensity at junction surface 94, just can make impact load F pass to main car frame (do not have and illustrate) expeditiously via forward right side vehicle frame 12.
Equally, also can make impact load F pass to main car frame (not having diagram) expeditiously via front left side vehicle frame 11 (with reference to (a)).
Like this, main car frame just can absorb impact load effectively.
In addition, in the above-described embodiment, although understand and to descend outer wall raised line 66 to be bonded on down on the inwall raised line 76, make right wheel yielding portion 27 and preceding inwall 59a integrated, and, adjust by the intensity that installation bracket 95 is reinforced 94 pairs of junction surfaces 94, junction surface, still, also can absorb impact load F fully by main car frame only with descending outer wall raised line 66 to be bonded on down on the inwall raised line 76.
In addition, in the above-described embodiment, although understand approaching preceding inwall 59a with the bottom 61a of recess 61, the following outer wall raised line 66 of bottom 61a is bonded on the following inwall raised line 76 of preceding inwall 59a, but be not limited to this, also can respectively upper and lower outer wall raised line 65,66 be bonded on the upper and lower inwall raised line 75,76.
In addition, in the above-described embodiment, though is example as the vehicle body boarded parts with braking pipe fitting 98, the content of reinforcing junction surface 94 by the installation bracket 95 of these braking pipe fitting 98 usefulness is illustrated, but, be not limited to this, also can as reinforcement feature with the installation bracket that miscellaneous part is installed.
And in the above-described embodiment, though as the sidecar frame left and right front side vehicle frame 11,12 has been carried out casehistory, the sidecar frame is not limited in this, and rear side frame or central side vehicle frame also are suitable for.
The present invention is applicable to the vehicle body front structure with the wheel yielding portion that can prevent that steered wheel and front side vehicle frame from interfering, and connects by several frame parts, again with the position of butt joint welded joint vehicle body front structure that it is become one respectively.
Claims (3)
1. vehicle body front structure, wherein, dispose wheel at the outer wall side of front side vehicle frame with closed sectional structure, for prevent this wheel anti-clockwise rotation or dextrorotary the time and the front side vehicle frame interfere, form wheel yielding portion at above-mentioned outer wall place, it is characterized in that:
Above-mentioned wheel yielding portion and wheel shape form recess accordingly, and what form at this recess place extends to the outer wall raised line of the inwall protuberance fore-and-aft direction along vehicle body;
On the inwall of above-mentioned front side vehicle frame, be formed with inwall raised line to above-mentioned outer wall raised line direction protuberance;
The outer wall raised line is to fix with the state of this inwall raised line butt.
2. a vehicle body front structure wherein, is bonded together several frame parts that constitute the sidecar frame of vehicle body, and it is as a whole by the mode of welding each docking site to be bonded into, and it is characterized in that:
To be used to support the installation bracket that is equipped on the parts on the above-mentioned vehicle body and be configured in above-mentioned junction surface in mode across the junction surface behind the above-mentioned joint;
The position, front and back of installation bracket is bonded on respectively on the position, front and back at this junction surface.
3. vehicle body front structure as claimed in claim 2 is characterized in that:
Above-mentioned installation bracket is the carriage that is used to support the braking stream;
This installation bracket is arranged on and is used to dodge wheel and the recess established in the above-mentioned sidecar frame.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005028120A JP4594123B2 (en) | 2005-02-03 | 2005-02-03 | Body front structure |
| JP028120/2005 | 2005-02-03 | ||
| JP028638/2005 | 2005-02-04 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1814490A true CN1814490A (en) | 2006-08-09 |
| CN100500496C CN100500496C (en) | 2009-06-17 |
Family
ID=36906885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101343118A Expired - Fee Related CN100500496C (en) | 2005-02-03 | 2005-12-14 | Vehicle front body structure |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4594123B2 (en) |
| CN (1) | CN100500496C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555750A (en) * | 2010-12-28 | 2012-07-11 | 铃木株式会社 | Motor mount structure for electric vehicle |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4853914B2 (en) * | 2006-10-03 | 2012-01-11 | ダイハツ工業株式会社 | Auto body front structure |
| JP2009227104A (en) * | 2008-03-24 | 2009-10-08 | Mazda Motor Corp | Frame structure of automobile |
| JP7497674B2 (en) * | 2020-11-17 | 2024-06-11 | マツダ株式会社 | Vehicle front body structure |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0439176U (en) * | 1990-07-31 | 1992-04-02 | ||
| JPH0450581U (en) * | 1990-09-05 | 1992-04-28 | ||
| JPH04293680A (en) * | 1991-03-25 | 1992-10-19 | Mazda Motor Corp | Front body structure for vehicle |
| JP2890937B2 (en) * | 1991-12-17 | 1999-05-17 | トヨタ自動車株式会社 | Car body front structure |
-
2005
- 2005-02-03 JP JP2005028120A patent/JP4594123B2/en not_active Expired - Fee Related
- 2005-12-14 CN CNB2005101343118A patent/CN100500496C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555750A (en) * | 2010-12-28 | 2012-07-11 | 铃木株式会社 | Motor mount structure for electric vehicle |
| CN102555750B (en) * | 2010-12-28 | 2014-07-02 | 铃木株式会社 | Motor mount structure for electric vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4594123B2 (en) | 2010-12-08 |
| JP2006213187A (en) | 2006-08-17 |
| CN100500496C (en) | 2009-06-17 |
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