CN1669861A - Rear body structure of automobile - Google Patents
Rear body structure of automobile Download PDFInfo
- Publication number
- CN1669861A CN1669861A CN 200510052586 CN200510052586A CN1669861A CN 1669861 A CN1669861 A CN 1669861A CN 200510052586 CN200510052586 CN 200510052586 CN 200510052586 A CN200510052586 A CN 200510052586A CN 1669861 A CN1669861 A CN 1669861A
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- bumper reinforcement
- rear side
- reinforcement
- main part
- tension member
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Abstract
The purpose of this invention is to effectively prevent bending of a vehicle widthwise center part of a bumper reinforcement, while sufficiently securing a space of a lower part of a rear floor. In this structure, the bumper reinforcement 2 fixed with mounting bolts across a rear end panel is provided at a rear end part of a rear side frame 1 disposed on left and right sides of a vehicle body. A vertical dimension H1 at the vehicle widthwise center part of the bumper reinforcement 2 is set to have a larger value than a vertical dimension H2 at a vehicle widthwise side end part. A lower surface A at the vehicle widthwise center part of the bumper reinforcement 2 is located on the lower side of a lower surface B of the rear side frame 1.
Description
Technical field
The present invention relates to have and clip the automotive rear body structure that rear end panel (rear end panel) is fixed on the bumper reinforcement on the rearward end that is arranged at the rear side about vehicle body by hold-down bolt.
Background technology
Always, for example have and a kind ofly open the automotive rear body structure shown in 2002-29342 number as the open communique spy of patent documentation Japanese Patent, rearward end at the left and right side frame that extends along the vehicle body fore-and-aft direction, be installed with and link left and right side frame and extend along vehicle-width direction, and be used to strengthen the bumper reinforcement (post-bumper beam) of rear bumper, the structure that connects of described bumper reinforcement is, have along vehicle-width direction and extend, constitute the general section portion of bumper reinforcement main part, and in the installation position that is used to install described rear side of this general section portion, make section extend the expansion section portion that enlarges at least upward, by described expansion section portion being installed on the rearward end of rear side, the configuration that formation makes the general section portion that constitutes the bumper reinforcement main part setover with respect to rear side downwards, the collision load that is produced when with this charge from bchind taking place roughly is directly passed to rear side.
Shown in above-mentioned patent documentation; left and right sides rear side with respect to the lower surface that is fixed on floor, back (rear floor panel); be used in the bumper reinforcement of strengthening rear bumper when setovering downwards; by rear side and floor, back being arranged on the top of bumper reinforcement; can fully guarantee to be installed on the noise silencer of bottom, floor, back and the receiving space of Fuel Tank; and by close road surface, the bottom that makes rear bumper, the influence of the load that is produced in the time of protecting vehicle body to avoid automobile generation charge from bchind effectively.
Yet, described bumper reinforcement, because of size uniformity on whole vehicle-width direction about it, so bottom biasing downwards corresponding to bumper reinforcement, make bottom also biasing downwards on its whole length direction of rear end panel, be difficult to make the problems such as rear side protrusion of the rearward end of freeing pipe to vehicle body thereby produce.Again, if the size up and down of dwindling described bumper reinforcement, when producing bigger collision load in automobile generation charge from bchind, the vehicle-width direction central part of bumper reinforcement can bend to the place ahead of vehicle body, and can't give rear side with described collision load transfer.In order to prevent the bending of described bumper reinforcement,, tare is increased and be difficult to realize lightweight if strengthen its size up and down.
Summary of the invention
The present invention finishes in view of the above problems, its purpose is, the receiving space of the noise silencer that can not only fully guarantee to be installed on bottom, floor, back and Fuel Tank is provided and makes space that the rearward end of freeing pipe protrudes to the vehicle body rear etc., and the vehicle-width direction central part that can prevent bumper reinforcement effectively produces bending, and can realize the automotive rear body structure of body lightening.
Automotive rear body structure of the present invention, have by hold-down bolt and clip the bumper reinforcement that rear end panel is fixed on the rearward end that is arranged at the rear side about vehicle body, the size up and down of the vehicle-width direction central part of described bumper reinforcement is greater than the size up and down of vehicle-width direction side end, and the lower surface of the vehicle-width direction central part of described bumper reinforcement is positioned at the below of the lower surface of rear side simultaneously.
Adopt said structure; by being arranged on, rear side leaves the ground-surface position; not only can guarantee the receiving space of noise silencer and Fuel Tank etc.; and be arranged on lower position, thereby transmit the influence of the load that comes etc. can protect vehicle body to avoid automobile generation charge from bchind effectively with simple structure the time from the below by vehicle-width direction central part with bumper reinforcement.And, the rigidity of the vehicle-width direction central part by improving bumper reinforcement, even when automobile generation charge from bchind, be subjected to bigger collision load, can prevent effectively that also the vehicle-width direction central part of bumper reinforcement from bending, can realize body lightening simultaneously.
In above-mentioned automotive rear body structure, be positioned at the bottom of the rear end panel at the position that rear side is set, roughly be positioned at sustained height with the bottom wall portion of rear side, described bumper reinforcement comprises the reinforcement main part that extends along vehicle-width direction, be positioned at the upper mounting bracket and the bottom installation bracket at the both ends, the left and right sides of this reinforcement main part, described upper mounting bracket is convexly equipped with and is fixed on the rear surface of rear end panel upward from the reinforcement main part, and described bottom installation bracket is convexly equipped with and is fixed on the bottom wall portion of rear side from the front side of reinforcement main part to vehicle body.
Adopt said structure, because can prevent to be positioned at the both ends, the left and right sides of the rear end panel at the position that rear side is set protrudes to the below of rear side, therefore can fully guarantee to make the space of the rearward end of freeing pipe to vehicle body rear protrusion, simultaneously can fully guarantee to be installed in being provided with at interval of upper mounting bracket portion and bottom installation bracket portion on rear end panel and the rear side, can make the installing condition of bumper reinforcement keep stablizing.
In above-mentioned automotive rear body structure, between the bottom of the bottom of bumper reinforcement installation bracket portion and reinforcement main part, the stage portion relative with the bottom, rear surface of rear side can be set.
Adopt said structure, if during automobile generation charge from bchind etc., be subjected to being positioned at the load on the direction that bumper reinforcement is forwards pushed, because the stage portion that between the bottom of bumper reinforcement installation bracket portion and reinforcement main part, is provided with and bottom, the back butt of rear side, therefore can be with described collision load transfer to rear side, thus can stably support.
In above-mentioned automotive rear body structure, the reinforcement main part of bumper reinforcement, upper mounting bracket portion, bottom installation bracket portion and stage portion are integrally formed by 1 block of sheet material, and along the inside face of described two installation bracket portions and stage portion the carriage tension member can be set.
Adopt said structure, by processing 1 block of sheet material, can be easily and low-costly make bumper reinforcement in light weight and that rigidity is high, utilize described carriage tension member the installation bracket portion and the stage portion of reinforced safety thick stick reinforcement effectively simultaneously, collide load thereby can stably bear the automobile that acts on this part.
In above-mentioned automotive rear body structure, between the carriage tension member and reinforcement main part set, be provided with the strengthening rib member along the inside face of upper mounting bracket portion, bottom installation bracket portion and the stage portion of bumper reinforcement.
Adopt said structure, when automobile takes place to collide, can make the strengthening rib member compressive deformation that is arranged between described carriage tension member and the reinforcement main part corresponding to the load that acts on the direction that bumper reinforcement is forwards pushed, can absorb described collision load effectively thus.
In above-mentioned automotive rear body structure, rearward end inside face along rear side is provided with the rear end lower tension member, simultaneously the rearward end upper surface along rear side is provided with the upper rear end tension member, is respectively arranged with the nut portions that the hold-down bolt with bumper reinforcement screws togather on described rear end lower tension member and upper rear end tension member.
Adopt said structure, owing to will have the rear end lower tension member and the upper rear end tension member of the nut portions that can screw togather with the hold-down bolt of described installation bracket portion, rearward end inside face and rearward end upper surface along rear side are provided with respectively, therefore not only can easily carry out with respect to the operation of this rear side erection insurance thick stick reinforcement, and utilize described two tension members can strengthen being installed with the rearward end of rear side of the installation bracket of bumper reinforcement effectively, thereby can stably keep the installing condition of bumper reinforcement.
Description of drawings
Fig. 1 is the block diagram of the embodiment of expression automotive rear body structure of the present invention.
Fig. 2 is the front elevation of the concrete structure of expression bumper reinforcement.
Fig. 3 is the exploded perspective view of the concrete structure of expression bumper reinforcement.
Fig. 4 is the side sectional view of the state that is mounted of expression bumper reinforcement.
Fig. 5 is the front elevation of the state that is mounted of expression bumper reinforcement.
Fig. 6 is the front section view of the rearward end structure of expression rear side.
Fig. 7 is the section plan of the rearward end structure of expression rear side.
Fig. 8 is the side sectional view of another concrete example of the rearward end of expression rear side.
The specific embodiment
Fig. 1 represents the embodiment of automotive rear body structure of the present invention.This rear portion vehicle body comprises the pair of right and left rear side 1 of extending along the fore-and-aft direction of vehicle body; Releasably be installed on the rearward end of this rear side 1, the interconnective bumper reinforcement 2 of the rearward end of two rear side 1; And be arranged between the rearward end and bumper reinforcement 2 of described rear side 1, by the rear end panel 3 of both clampings.Above described rear side 1, the back floor 4 with spare tyre storage part 4a is set, simultaneously at the rear of described bumper reinforcement 2, be provided with not shown bumper/spoiler.
As Fig. 2～shown in Figure 5, described bumper reinforcement 2 has the reinforcement main part 5 that extends along vehicle-width direction, and the upper mounting bracket portion 6 and the bottom installation bracket portion 7 that are separately positioned on these both ends, reinforcement main part 5 left and right sides, between this bottom installation bracket portion 7 and described reinforcement main part 5, be provided with stage portion 8.Above-mentioned reinforcement main part 5, installation bracket portion 6,7 and stage portion 8 are by 1 block plate material being carried out hot pressing processing etc. and integrally formed.And, the inner end of described upper mounting bracket portion 6 with from reinforcement main part 5 side end of the flange part 5a that is convexly equipped with of direction be connected (with reference to Fig. 3) up and down.
Both ends, the left and right sides at described bumper reinforcement 2, along upper mounting bracket portion 6 and bottom installation bracket portion 7, and the internal face of described stage portion 8 is provided with carriage tension member 9, and use mode such as spot welding to be fixed, the outboard end from described carriage tension member 9 convexes with strengthening rib member 10 to the rear of vehicle body simultaneously.Again, wainscot 13 and base wall panel 14 that the reinforcement main part 5 of described bumper reinforcement 2 has front panel 12, extends to vehicle body the place ahead from the both ends up and down of this front panel 12, the section that is formed backside openings by these members roughly is " コ " shape structure, and the assigned address of described front panel 12 is provided with the reinforced rib 15 (reinforcement bead) that extends along vehicle-width direction simultaneously.
The reinforcement main part 5 of described bumper reinforcement 2, the size up and down of its front panel 12 increases to central part gradually from side end, the H1 of size up and down of vehicle-width direction central part that makes bumper reinforcement 2 thus is greater than the H2 of size up and down at both ends, the left and right sides, makes the lower surface A of vehicle-width direction central part of the reinforcement main part 5 of described bumper/spoiler reinforcement plate 2 be positioned at the position (with reference to Fig. 2) of the lower surface B below of rear side 1 simultaneously.Again, be positioned at the bottom 3a of the rear end panel 3 at the position that described rear side 1 is set, roughly be positioned at identical height with the bottom wall portion of rear side 1, (with reference to Fig. 1 and Fig. 4).
Be positioned at the stage portion 8 of described bumper reinforcement 2 downsides, as Fig. 4 and shown in Figure 5, the longitudinal panels with Rack that is convexly equipped with downwards by the position, the left and right sides from the leading section of the base wall panel 14 of reinforcement main part 5 constitutes, and relative with the bottom, rear surface of rear side 1.And, convex with described upper mounting bracket portion 6 upward from the position, the left and right sides of the leading section of the wainscot 13 of described reinforcement main part 5, simultaneously,, convex with described bottom installation bracket portion 7 to vehicle body the place ahead from the bottom of above-mentioned stage portion 8.
Upper mounting bracket portion 6 is fixed on the upper rear end of rear side 1 by hold-down bolt 17 with rear end panel 3, and bottom installation bracket portion 7 is fixed on the rear end bottom wall portion of rear side 1 by pair of right and left hold-down bolt 18.In addition, among Fig. 4, the 16th, position and be used for the card that temporary card ends during bumper reinforcement 2 installation exercises and only use anchor clamps.
Described carriage tension member 9 comprises: the vertical component effect 19 that is provided with and is engaged along the inside face (front surface) of the upper mounting bracket portion 6 of bumper reinforcement 2 and stage portion 8; And the horizontal part 20 that is convexly equipped with, engages to vehicle body the place ahead from the bottom of this vertical component effect 19 with the inside face (upper surface) of described bottom installation bracket portion 7.Be formed with the through hole 19 of hold-down bolt 17 on the top of described vertical component effect 19, be formed with the through hole 22 (with reference to Fig. 7) of hold-down bolt 18 simultaneously at described horizontal part 20.That is, be provided with at the vertical component effect 19 of described carriage tension member 9 inside face (front surface) along upper mounting bracket portion 6 and stage portion 8; Under the state that horizontal part 20 is provided with along the inside face (upper surface) of bottom installation bracket portion 7,, described carriage tension member 9 can be fixed near the side end of bumper reinforcement 2 simultaneously by modes such as spot welding.
Described strengthening rib member 10 comprises: from the side end of the vertical portion 19 of the carriage tension member 9 vertical wall portion 23 to the rear extension of vehicle body, and be arranged on the both ends up and down of this vertical wall portion 23 and the mounting flange portion 24～26 of rearward end.On near two wallboards 13,14 up and down by modes such as above-mentioned mounting flange portion 24～26 usefulness spot welding being fixed on reinforcement main part 5 and the side end of front panel 12 the inside face, make strengthening rib member 10 near the side end of described bumper reinforcement 2, be set between the inside face of the vertical portion 19 of carriage tension member 9 and reinforcement main part 5.
Described rear side 1, as Figure 6 and Figure 7, comprise that section that the base wall panel 27 of being extended by along continuous straight runs, the pair of right and left sidewall paneling 28,29 that extends upward from the both ends, the left and right sides of this base wall panel 27 constitute roughly is main body of vehicle frame portion 30 of " コ " shape and the faying flange portion 31,32 that is convexly equipped with to the side from the upper end of described sidewall paneling 28,29.On the lower surface that described two faying flange portions 31,32 is welded on floor 4, back, formation is along the closed sectional structure that the fore-and-aft direction of vehicle body extends, and the sidewall paneling 28 that is positioned at the vehicle body outside simultaneously is roughly mutually opposed with described strengthening rib member 10 on the vehicle body fore-and-aft direction.
Again, be provided with rear end lower tension member 33 along the rearward end inside face of described rear side 1, the rearward end upper surface along rear side 1 is provided with upper rear end tension member 34 simultaneously.Described rear end lower tension member 33 has by modes such as spot welding and is fixed on the adapter plate 35 of rearward end upper surface of described base wall panel 27 and the erect plate 36 that is convexly equipped with upward from the end (rearward end) of this adapter plate 35, is formed with the through hole of described hold-down bolt 17 on the top of this erect plate 36.Again, at the upper surface of the adapter plate 35 of described rear end lower tension member 33, predetermined fixed the nut 37 that screws togather with described hold-down bolt 18.
Described upper rear end tension member 34 roughly is " L " shape, have by modes such as spot welding and be fixed in the horizontal plate 38 of upper surface of faying flange portion 31,32 of rear side 1 and the erect plate 39 that is convexly equipped with upward from the rearward end of this horizontal plate 38, on this erect plate 39, predetermined fixed the nut 40 that the hold-down bolt 17 with bumper reinforcement screws togather.Again, nut 40 is welded on transaction capabilities on the described erect plate 39, is formed with the recess 41 of depression downwards at the central part of horizontal plate 38 in order to improve.
As mentioned above; have by hold-down bolt 17; 18 clip the automotive rear body structure that rear end panel 3 is fixed on the bumper reinforcement 2 on the rearward end of the rear side 1 that is arranged at about vehicle body; because the H1 of size up and down of the vehicle-width direction central part of described bumper reinforcement 2 is set at the H2 of size up and down greater than the vehicle-width direction side end; make the lower surface A of the vehicle-width direction central part of described bumper reinforcement 2 be positioned at the below of the lower surface B of rear side 1 simultaneously; therefore can below floor 4, back, guarantee the receiving space of noise silencer and Fuel Tank etc.; transmit the influence of the load that comes in the time of simultaneously protecting vehicle body to avoid automobile generation charge from bchind effectively from the below with simple structure; can also be under the situation of the weight that does not increase described bumper reinforcement 2, prevent that effectively this vehicle-width direction central part is subjected to bigger collision load and bends.
That is, be set at smaller value by the H2 of size up and down with the vehicle-width direction side end of described bumper reinforcement 2, can make the rear side 1 that is provided with respect to this part more in the past structure the upside that the position more is tending towards vehicle body is set.Thus, be arranged at back floor 4 above the described rear side 1 below, can fully guarantee to be used to accommodate the space of noise silencer and Fuel Tank.And the H1 of size up and down of the vehicle-width direction central part of described bumper reinforcement 2 is set at higher value, make the lower surface A at this position be positioned at the below of rear side 1 lower surface simultaneously, therefore can not only guarantee the receiving space of described noise silencer etc., and utilize the vehicle-width direction central part of described bumper reinforcement 2, because of contacting with the ground-surface protrusion, vehicle body cause vehicle body impaired in the time of preventing back of automobile effectively.
Again, because the section moculus of vehicle-width direction central part of bumper reinforcement 2 that is subjected to bigger collision load effect when making automobile generation charge from bchind is greater than side end, to improve its rigidity, therefore need not increase the weight of bumper reinforcement 2, just can prevent that the vehicle-width direction central part of bumper reinforcement 2 from bending because of being subjected to above-mentioned collision load effect.So, can bear described collision load by bumper reinforcement 2, simultaneously can be with described collision load transfer to rear side 1 and absorbed, thus realize the lightweight of vehicle body.
Again, in the above-described embodiments, because of being positioned at the bottom 3a of the rear end panel 3 at the position that rear side 1 is set, roughly be positioned at sustained height with the bottom wall portion (base wall panel 27) of rear side 1, so can prevent the both ends, the left and right sides of described rear end panel 3 protrudes to the below of rear side 1, thereby, can fully guarantee to make the space of the rearward end of freeing pipe at the following direction vehicle body rear of described rear end panel 3 protrusion in this part.And, on described bumper reinforcement 2, be provided with the reinforcement main part 5 that extends along vehicle-width direction, and the upper mounting bracket portion 6 and the bottom installation bracket portion 7 that are positioned at the both ends, the left and right sides of this reinforcement main part 5, and described upper mounting bracket portion 6 is convexly equipped with upward from reinforcement main part 5, and be fixed on the rear surface of rear end panel 3, simultaneously described bottom installation bracket portion 7 is convexly equipped with from reinforcement main part 5 the place ahead to vehicle body, and be fixed on the bottom wall portion (base wall panel 27) of rear side 1, therefore can fully guarantee to be installed on the upper mounting bracket portion 6 of rear end panel 3 and rear side 1 and being provided with at interval of bottom installation bracket portion 7, make the installing condition of rear side 1 keep stable effectively.
Again, in the above-described embodiments, because between the bottom of the bottom of bumper reinforcement 2 installation bracket portion 7 and reinforcement main part 5, be provided with the stage portion 8 relative with the bottom, rear surface of rear side 1, therefore in case during automobile generation charge from bchind etc., load generation effect on the direction that bumper reinforcement 2 is forwards pushed, then be arranged on the bottom installation bracket portion 7 of bumper reinforcement 2 and bottom, the rear surface butt of stage portion between the reinforcement main part 58 and rear side 1, the load transfer that produces during with above-mentioned collision is to rear side 1.Like this, by the collision load that will act on bumper reinforcement 2 disperse to the upper rear end and the bottom wall portion of the rear side 1 of the bottom, rear surface of the rear side 1 of described stage portion 8 butts and upper mounting bracket portion 6 by described hold-down bolt 17,18 erection insurance thick stick reinforcements 2 and bottom installation bracket portion 7, can stably support.
And, shown in above-mentioned embodiment, because reinforcement main part 5, upper mounting bracket portion 6, bottom installation bracket portion 7 and the stage portion 8 of bumper reinforcement 2 are integrally formed by 1 block of sheet material, and, be provided with carriage tension member 9 and engaged along the inside face of described bottom installation bracket portion 7 and stage portion 8, therefore by 1 block of sheet material of processing, can be easily and the bumper reinforcement 2 that low-cost manufacturing is in light weight and rigidity is high.And the installation bracket portion 6,7 and the stage portion 8 of bumper reinforcement 2 are strengthened effectively by described leading section tension member 9, thereby can stably bear the automobile that acts on this part and collide load, can prevent more effectively that therefore the rearward end etc. of front side frame 1 from deforming because of this collision load.
Particularly, by adopting with between the insertion hot plates such as steel plate materials, make the movable platform running with hydraulic pressure etc., heat the hot pressing that compresses and shape method, make reinforcement main part 5, installation bracket portion 6,7 and the stage portion 8 of described bumper reinforcement 2 integrally formed, can be easily and accurately form section shape and change complicated described bumper reinforcement 2.
Again, in the foregoing description, because in upper mounting bracket portion 6 along bumper reinforcement 2, between the carriage tension member 9 that the inside face of bottom installation bracket portion 7 and stage portion 8 is set and the inside face of reinforcement main part 5, be provided with strengthening rib member 10, therefore when collision etc. takes place in automobile, can be corresponding to the load that acts on the direction that bumper reinforcement 2 is forwards pushed, make strengthening rib member 10 compressive deformations that are arranged between described carriage tension member 9 and the reinforcement main part 5, to absorb described collision load effectively, therefore can restrain front side frame 1 more effectively and sustain damage.
Particularly, shown in above-mentioned embodiment, when the position that described strengthening rib member 10 is arranged on side wall portion 28 subtends in the vehicle body of rear side 1 outside, suffered collision load in the time of can be corresponding to automobile generation charge from bchind, make described strengthening rib member 10 that compressive deformation positively take place, collide load to absorb effectively.In addition, when described strengthening rib member 10 being arranged at the relative position of side wall portion 29 with the vehicle body inboard of rear side 1, also can back suffered collision load when colliding take place corresponding to automobile, make described strengthening rib member 10 that compressive deformation positively take place, collide load to absorb effectively.
Again, in the above-described embodiments, because the rearward end inside face along rear side 1 is provided with rear end lower tension member 33, rearward end upper surface along rear side 1 is provided with upper rear end tension member 34 simultaneously, on described rear end lower tension member 33 and upper rear end tension member 34, be respectively arranged with can with the hold-down bolt 17 of bumper reinforcement 2,18 nuts that screw togather 37,40, therefore by described rear end lower tension member 33 and upper rear end tension member 34 being installed in the rearward end of rear side 1, the operation of erection insurance thick stick reinforcement 2 can be carried out easily on this rear side 1.And because of utilizing described rear end lower tension member 33 and upper rear end tension member 34 can strengthen the rearward end of rear side 1 effectively, thereby can stably keep the installing condition of bumper reinforcement 2.In addition, also can adopt on this front end bottom tension member 33 and upper front end tension member 34 structure that directly forms screw, replace in the foregoing description described nut 37,40 is welded on structure on front end bottom tension member 33 and the upper front end tension member 34 with this.
Again, as shown in Figure 8, also the head 42a of hold-down bolt 42 can be fixed on the erect plate 39 of upper rear end tension member 34, the screw shaft 42b of hold-down bolt 42 is convexly equipped with at the rear of the erect plate 36 of bottom tension member 33 to the back-end, by nut 43 is screwed togather with described screw shaft 42b, the upper mounting bracket portion 6 of described rear end panel 3 and bumper reinforcement 2 is fixed on the described erect plate 39.Adopt this structure, in the installation exercise of described bumper reinforcement 2, can utilize the screw shaft 42b of described bolt 42 to end member as location and temporary card.But, therefore correctly apply leakproofing material to realize that the leak free operation is then comparatively difficult in this part owing on the erect plate 36 of described rear end lower tension member 33, need be formed for running through otch or the screw of described screw shaft 42b.For this reason, for can be with simple structure, guarantee leak tightness reliably, preferably adopt the structure that on upper rear end tension member 34, is formed with nut portions such as the nut 40 that can screw togather or screw in the foregoing description with the hold-down bolt 17 of bumper reinforcement 2.
Claims (6)
1. automotive rear body structure, have by hold-down bolt and clip the bumper reinforcement that rear end panel is fixed on the rearward end that is arranged at the rear side about vehicle body, it is characterized in that, the size up and down of the vehicle-width direction central portion of described bumper reinforcement is greater than the size up and down of vehicle-width direction side end, and the lower surface of the vehicle-width direction central part of described bumper reinforcement is positioned at the below of the lower surface of rear side simultaneously.
2. automotive rear body structure as claimed in claim 1, it is characterized in that, be positioned at the bottom of the rear end panel at the position that rear side is set, roughly be positioned at sustained height with the bottom wall portion of rear side, described bumper reinforcement comprises the reinforcement main part that extends along vehicle-width direction, be positioned at the upper mounting bracket and the bottom installation bracket at the both ends, the left and right sides of this reinforcement main part, described upper mounting bracket is convexly equipped with upward from the reinforcement main part, and be fixed on the rear surface of rear end panel, described bottom installation bracket is convexly equipped with from reinforcement main part the place ahead to vehicle body, and is fixed on the bottom wall portion of rear side.
3. the rear structure of vehicle body of automobile as claimed in claim 2 is characterized in that, between the bottom of the bottom of bumper reinforcement installation bracket portion and reinforcement main part, is provided with the stage portion relative with the bottom, rear surface of rear side.
4. automotive rear body structure as claimed in claim 3, it is characterized in that, the reinforcement main part of bumper reinforcement, upper mounting bracket portion, bottom installation bracket portion and stage portion are integrally formed by 1 block of sheet material, and are provided with the carriage tension member along the inside face of described two installation bracket portions and stage portion.
5. automotive rear body structure as claimed in claim 4, it is characterized in that, between the carriage tension member and described reinforcement main part set, be provided with the strengthening rib member along the inside face of upper mounting bracket portion, bottom installation bracket portion and the stage portion of bumper reinforcement.
6. as each described automotive rear body structure in the claim 1～5, it is characterized in that, rearward end inside face along rear side is provided with the rear end lower tension member, simultaneously the rearward end upper surface along rear side is provided with the upper rear end tension member, is respectively arranged with the nut portions that the hold-down bolt with bumper reinforcement screws togather on described rear end lower tension member and upper rear end tension member.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004081172A JP4360238B2 (en) | 2004-03-19 | 2004-03-19 | Rear body structure of automobile |
| JP2004081172 | 2004-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1669861A true CN1669861A (en) | 2005-09-21 |
| CN100387477C CN100387477C (en) | 2008-05-14 |
Family
ID=35041355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100525867A Expired - Fee Related CN100387477C (en) | 2004-03-19 | 2005-02-22 | Rear body structure of automobile |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4360238B2 (en) |
| CN (1) | CN100387477C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555956A (en) * | 2012-03-05 | 2012-07-11 | 重庆长安汽车股份有限公司 | Rear collision crossbeam structure for automobiles |
| CN102785626A (en) * | 2012-08-20 | 2012-11-21 | 东风汽车股份有限公司 | Automobile rear bumper framework |
| CN103625560A (en) * | 2012-08-21 | 2014-03-12 | 马自达汽车株式会社 | Rear vehicle-body structure of vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE530205C2 (en) * | 2006-08-15 | 2008-03-25 | Gestamp Hardtech Ab | Bumper beam |
| JP4885912B2 (en) * | 2008-07-07 | 2012-02-29 | 本田技研工業株式会社 | Car body rear structure |
| JP5543756B2 (en) * | 2009-11-05 | 2014-07-09 | アイシン精機株式会社 | Bumper device for vehicle |
| JP5742934B2 (en) * | 2011-04-25 | 2015-07-01 | スズキ株式会社 | Bumper structure of vehicle |
| WO2013094515A1 (en) * | 2011-12-20 | 2013-06-27 | 本田技研工業株式会社 | Automobile fiber-strengthening resin member and method for producing automobile fiber-strengthening resin member |
| JP2013141850A (en) * | 2012-01-10 | 2013-07-22 | Honda Motor Co Ltd | Body frame structure of vehicle |
| US20150061320A1 (en) * | 2012-01-10 | 2015-03-05 | Honday Motor Co., Ltd. | Vehicle body frame structure of motor vehicle |
| JP6679531B2 (en) * | 2017-05-12 | 2020-04-15 | 豊田鉄工株式会社 | Bumper reinforcement |
| JP7264072B2 (en) * | 2020-01-24 | 2023-04-25 | トヨタ自動車株式会社 | vehicle reinforcement |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002019559A (en) * | 2000-07-11 | 2002-01-23 | Topre Corp | Vehicular reinforcing member |
| JP4485025B2 (en) * | 2000-07-19 | 2010-06-16 | 富士重工業株式会社 | Rear bumper structure of the vehicle |
| CN2474410Y (en) * | 2000-09-13 | 2002-01-30 | 张跃杰 | Motor vehicle fender guard with car body shielding function |
| DE10053840A1 (en) * | 2000-10-30 | 2002-05-08 | Bayer Ag | Bumper system for vehicles |
| JP2003237507A (en) * | 2002-02-19 | 2003-08-27 | Om Kogyo Kk | Bumper reinforcement |
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2004
- 2004-03-19 JP JP2004081172A patent/JP4360238B2/en not_active Expired - Fee Related
-
2005
- 2005-02-22 CN CNB2005100525867A patent/CN100387477C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555956A (en) * | 2012-03-05 | 2012-07-11 | 重庆长安汽车股份有限公司 | Rear collision crossbeam structure for automobiles |
| CN102555956B (en) * | 2012-03-05 | 2015-11-18 | 重庆长安汽车股份有限公司 | A kind of rear collision crossbeam structure for automobiles |
| CN102785626A (en) * | 2012-08-20 | 2012-11-21 | 东风汽车股份有限公司 | Automobile rear bumper framework |
| CN103625560A (en) * | 2012-08-21 | 2014-03-12 | 马自达汽车株式会社 | Rear vehicle-body structure of vehicle |
| CN103625560B (en) * | 2012-08-21 | 2017-03-01 | 马自达汽车株式会社 | The rear vehicle body structure of vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100387477C (en) | 2008-05-14 |
| JP4360238B2 (en) | 2009-11-11 |
| JP2005263114A (en) | 2005-09-29 |
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