CN100423977C - Cast suspension beam structure - Google Patents
Cast suspension beam structure Download PDFInfo
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- CN100423977C CN100423977C CNB2004100616236A CN200410061623A CN100423977C CN 100423977 C CN100423977 C CN 100423977C CN B2004100616236 A CNB2004100616236 A CN B2004100616236A CN 200410061623 A CN200410061623 A CN 200410061623A CN 100423977 C CN100423977 C CN 100423977C
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- 239000000725 suspension Substances 0.000 title claims abstract description 134
- 238000005266 casting Methods 0.000 claims description 44
- 230000015572 biosynthetic process Effects 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 abstract 3
- 239000011324 bead Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 12
- 238000010521 absorption reaction Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 8
- 230000003321 amplification Effects 0.000 description 6
- 238000003199 nucleic acid amplification method Methods 0.000 description 6
- 230000002787 reinforcement Effects 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 208000032443 Masked facies Diseases 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
First reinforcing ribs 50 for connecting a front side mounting part 52 and a rear side mounting part 54 are stood on both sides of a cast front suspension member 10. The first reinforcing ribs 50 are reinforced by a plurality of second reinforcing ribs 56. As a result, the rigidity in relation to the input from the suspension arm is secured. A thin-walled part 58 is formed in a triangular range in plane view on a front side of the rear side mounting part 54. A crash bead 62 is formed in the thin-walled part 58. As a result, energy absorbing stroke at the time of the frontal collision is secured and energy absorbing performance is also ensured.
Description
Technical field
The present invention relates to by casting, and comprise suspension front cross rail, suspension after cross member and a pair of suspension curb girder and the casting suspension beam structure that constitutes.
Background technology
In the past, the parts as being used to support suspension arm and steering box were equipped with suspension beam.For example, the spy to open the disclosed suspension beam of flat 6-298121 communique be exactly known.Generally speaking, suspension beam is made by steel plate is carried out punch forming, but, recently from the weight-saving viewpoint, rises for the demand of using aluminum alloy etc. to make suspension beam by casting.
But,, should guarantee the rigidity from the input of suspension arm is guaranteed the energy absorption when collide the front again if adopt casting suspension beam structure, just very difficult.
Even so, if steel plate is carried out punch forming and makes suspension beam, on can guaranteeing to basis from the rigid shape of the input of suspension arm, the position of desiring when colliding in front to make it to be out of shape is provided with lug boss of regulation shape etc., just can realize the predetermined deformation pattern to a certain extent.By contrast, under the situation of the suspension beam that castings such as using aluminum alloy forms, owing to just had the characteristic lower originally than the suspension beam strength at repeated alternation of punch forming product, thereby be difficult to be used as the structure that initiatively is out of shape when collide the front.
Summary of the invention
The present invention considers the above-mentioned fact, and purpose is to obtain a kind of casting suspension beam structure, makes both to have guaranteed rigidity to from the input of suspension arm, can guarantee the energy absorption when collide the front again.
For this reason, provide a kind of casting suspension beam structure, its formation comprises: by casting, and to show vehicle-width direction greatly be suspension front cross rail and the suspension after cross member that longitudinally disposes; Showing the vehicle fore-and-aft direction greatly is a pair of suspension curb girder that longitudinally disposes, it is characterized in that: on above-mentioned suspension curb girder, be provided with high rigid portion, be provided with low rigid portion at above-mentioned suspension after cross member and the position that above-mentioned suspension curb girder intersects along its longitudinally.
According to above-mentioned casting suspension beam structure, the formation of suspension beam comprises: by casting, and to show vehicle-width direction greatly be suspension front cross rail and the suspension after cross member that longitudinally disposes; Showing the vehicle fore-and-aft direction greatly is a pair of suspension curb girder that longitudinally disposes.
, on above-mentioned suspension curb girder,, be provided with high rigid portion herein, thereby can support input with this high rigid portion from suspension arm along its longitudinally.Therefore, can guarantee rigidity from the input of suspension arm.
And, in the present invention, owing to be provided with low rigid portion at above-mentioned suspension after cross member and the position that above-mentioned suspension curb girder intersects, thereby the deformation stroke of having guaranteed by this low rigid portion during the collision of front.Therefore, the energy absorption in the time of can guaranteeing the front collision.
Also have, certain viewpoint according to the present invention, a kind of casting suspension beam structure is provided, is installed in car body one side with a plurality of attachment points that are located at front side and rear side respectively, its formation comprises: showing vehicle-width direction greatly is suspension front cross rail and the suspension after cross member that longitudinally disposes; Showing the vehicle fore-and-aft direction greatly is a pair of suspension curb girder that longitudinally disposes, described suspension front cross rail (12), suspension after cross member (14) and a pair of suspension curb girder (16,18) by casting, it is characterized in that: on above-mentioned suspension curb girder, be provided with high rigid portion, at position that above-mentioned suspension after cross member and above-mentioned suspension curb girder intersect, the place ahead one side of one side attachment point is provided with low rigid portion at the rear portion along its longitudinally.
According to above-mentioned casting suspension beam structure, its formation comprises: by casting, and to show vehicle-width direction greatly be suspension front cross rail and the suspension after cross member that longitudinally disposes; Showing the vehicle fore-and-aft direction greatly is a pair of suspension curb girder that longitudinally disposes, be installed in car body one side with a plurality of attachment points that are located at front side and rear side respectively again, herein, because on above-mentioned suspension curb girder, be provided with high rigid portion along its longitudinally, thereby can support input by this high rigid portion from suspension arm.Therefore, can guarantee rigidity from the input of suspension arm.And because at the position that above-mentioned suspension after cross member and above-mentioned suspension curb girder intersect, one side is provided with low rigid portion in the place ahead of rear side attachment point, thereby the distortion process has been guaranteed by this low rigid portion when colliding in the front.Therefore, the energy absorption in the time of can guaranteeing the front collision.
Also have, above-mentioned casting suspension beam structure, suitable is, it is characterized in that: above-mentioned high rigid portion is set for its installed in front point and rear side attachment point are coupled together, the part of specialized range that is positioned at the place ahead one side of above-mentioned rear side attachment point in above-mentioned low rigid portion and the above-mentioned high rigid portion is connected.
According to above-mentioned casting suspension beam structure, owing to above-mentioned high rigid portion is set for its installed in front point and rear side attachment point are coupled together, the part of specialized range that is positioned at the place ahead one side of above-mentioned rear side attachment point in above-mentioned low rigid portion and the above-mentioned high rigid portion is connected, therefore, collision load when collide the front is imported into suspension beam, to low rigid portion clamp-on the load of (entering) will be to high rigid portion in the connecting bridge effect of low rigid portion.Therefore, not only low rigid portion self can produce distortion, and along with the distortion of low rigid portion, the connecting bridge with low rigid portion in the high rigid portion also can be pulled to low rigid portion one side and produce distortion.That is, association's action that can obtain high rigid portion and low rigid portion is used.
Also have, above-mentioned casting suspension beam structure, suitable is, it is characterized in that: above-mentioned high rigid portion is connected in the 1st reinforced rib, is constituted to inboard the 2nd reinforced rib more than or two that extends of vehicle-width direction by the 1st reinforced rib that extends along the vehicle fore-and-aft direction and an end, and above-mentioned the 2nd reinforced rib is located at the scope that does not overlap with above-mentioned low rigid portion.
According to above-mentioned casting suspension beam structure, because above-mentioned high rigid portion is connected in the 1st reinforced rib, is constituted to inboard the 2nd reinforced rib more than or two that extends of vehicle-width direction by the 1st reinforced rib that extends along the vehicle fore-and-aft direction and an end, thereby by the 2nd reinforced rib the 1st reinforced rib is strengthened.Therefore, can improve rigidity to the input of the suspension arm when travelling usually.And because above-mentioned the 2nd reinforced rib is located at and hang down the nonoverlapping scope of rigid portion, thereby the front can not hinder the distortion of low rigid portion when colliding.Also have, self can not get the scope of the supporting power of the 2nd reinforced rib at the 1st reinforced rib, just easily deformable.
Also have, suitable is that the thickness of slab of the common portion of thickness ratio of above-mentioned low rigid portion is thin.
Because above-mentioned low rigid portion is than common thin thickness of slab, thereby can make above-mentioned low rigid portion have low rigidity.Therefore, when colliding, just can make suspension beam easily deformable in this part such as the vehicle front.
At this moment, suitable is that above-mentioned low rigid portion comprises: long at the vehicle fore-and-aft direction, short, elongated shape at vehicle-width direction, from the expression lobes portion of above-mentioned common projection.
Owing to have above-mentioned expression lobes portion on the above-mentioned low rigid portion, thereby when colliding, just can make suspension beam, just can guarantee the distortion process fully to vehicle-width direction inboard generation plastic deformation in the vehicle front.
Also have, suitable is that above-mentioned low rigid portion comprises: in a pair of above-mentioned expression lobes portion that vehicle-width direction is arranged side by side.Have, suitable is that above-mentioned low rigid portion comprises again: triangle, from the expression lobes portion of above-mentioned common projection.And also have, suitable is that above-mentioned low rigid portion comprises: in vehicle fore-and-aft direction length, in vehicle-width direction expression lobes short, elongated shape, opening portion.
Description of drawings
For understanding the embodiments of the present invention that the back will describe in detail, please refer to the following drawings,, simply describe earlier for this reason.That is:
Fig. 1 (A) is the amplification plan view of part of the casting suspension beam structure of state representation the 1st embodiment when travelling usually, (B) be the amplification plan view of the part of this casting suspension beam structure of state representation when colliding, (C) be the C-C line section-drawing of the section shape of expression expression lobes portion by the front.
Fig. 2 is the birds-eye view that the front overhang integral body of setting a roof beam in place of expression the 1st embodiment constitutes.
Fig. 3 is the block diagram that the front overhang integral body of setting a roof beam in place of expression the 1st embodiment constitutes.
Fig. 4 is the 2nd embodiment, (A) represents the amplification plan view of the part of expression lobes portion, (B) represents the B-B line section-drawing of the section shape of this expression lobes portion.
Fig. 5 is the 1st variation of the 2nd embodiment, (A) is the amplification plan view of the part of expression expression lobes portion, (B) is the B-B line section-drawing of the section shape of expression opening.
Fig. 6 is the 2nd variation of the 2nd embodiment, (A) is the amplification plan view of the part of expression expression lobes portion, (B) is the B-B line section-drawing of the section shape of this expression lobes portion of expression.
The specific embodiment
(the 1st embodiment)
Below, with Fig. 1～Fig. 3, the front overhang that adopts the 1st embodiment of the present invention (the suspension member) 10 that set a roof beam in place described.
The block diagram that Fig. 3 represents to set a roof beam in place the front overhang of present embodiment 10 integral body constitutes also has, the birds-eye view that Fig. 2 represents to set a roof beam in place this front overhang 10 integral body constitutes.Have, Fig. 1 is the set a roof beam in place amplification plan view etc. of 10 part of this front overhang of expression again.
As Fig. 3 and shown in Figure 2, front overhang is set a roof beam in place and 10 is comprised along a pair of front suspension front cross rail (the cross member) 12 of vehicle-width direction, front and back configured in parallel and front suspension after cross member 14 with along a pair of front suspension curb girder (front suspension sidemember) 16,18 of vehicle fore-and-aft direction, left and right sides configured in parallel and constitute, as a whole, look from the top and form well type shape.Also have, 10 castings (aluminium pressure diecasting die-cast) by the employing aluminum alloy of setting a roof beam in place of this front overhang constitute.
In the set a roof beam in place fwd both sides portion of 10 front suspension front cross rail 12 of above-mentioned front overhang, the integrally formed gear case installation portion 42 that is used to install not shown steering box, insert not shown screw in the screw insertion hole 43 that on this gear case installation portion 42, forms, and it is anchored on nut, steering box just is fixed.
Also have, in set a roof beam in place 10 a pair of anterior limit portion of front overhang, front and back have formed the installed in front base 24 and the rear side mounting seat 26 of the medial end that is used for joltily installing not shown pair of right and left front suspension arm abreast.On this installed in front base 24 and rear side mounting seat 26, formed screw insertion hole 28 coaxially, between the two, be pressed into sleeve in the end of inboard of front suspension arm for inserting the state of configuration, screw is inserted in the screw insertion hole 28, fastening by nut, the pair of right and left front suspension arm just can joltily be subjected to the axle supporting.
Shown in Fig. 1 waits, in the present embodiment,, formed the 1st reinforced rib 50 of the band shape of extending along the vehicle fore-and-aft direction herein, in the set a roof beam in place outer edge of 10 front suspension curb girder 16,18 of above-mentioned front overhang.Each the 1st reinforced rib 50 is upright and establish, and carries out front and back with rear side installation portion 54 and is connected being located at front overhang 10 four jiaos the installed in front portion 52 of setting a roof beam in place.
And in the inboard of above-mentioned the 1st reinforced rib 50, along vehicle-width direction, the 2nd reinforced rib 56 of a plurality of right angle trigonometry shapes is uprightly established.The 2nd reinforced rib 56 disposes with the interval of regulation along the vehicle fore-and-aft direction, and outboard end is connected in the 1st reinforced rib 50 with the state of orthogonal.
Also have,, formed thinner wall section 58 in the scope (scope of the triangle of representing with oblique line among Fig. 1 (A)) of regulation in set a roof beam in place the place ahead one side of 10 rear side installation portion 54 of above-mentioned front overhang.The thickness of slab t of thinner wall section 58 (with reference to Fig. 1 (C)) sets thinlyyer than set a roof beam in place 10 common 60 thickness of slab of front overhang.Therefore, the face rigidity of specially setting the face rigidity of thinner wall section 58 than common 60 is low.In addition, be set at above-mentioned the 2nd reinforced rib 56 with the formation scope of this thinner wall section 58 not overlapping.
And, the inboard of the rear end side of the 1st reinforced rib 50 on above-mentioned thinner wall section 58, the shape that having formed looks from the top constitutes into elongated elliptical shape or with 2 semicircles and 2 straight lines and the expression lobes portion (crushbead) 62 of section cap (hut) shape of a side projection upward.The rear end side of 62 pairs the 1st reinforced ribs 50 of expression lobes portion is parallel substantially and form.Owing to formed this expression lobes portion 62, thereby the rigidity at the formation position of this expression lobes portion 62 uprises (become and be difficult to distortion) at the vehicle fore-and-aft direction, vehicle-width direction step-down (becoming easily deformable).
Secondly, effect and the effect to this 1st embodiment describes.
In the set a roof beam in place outer edge of a pair of front suspension curb girder 16,18 on 10 of front overhang, pair of right and left the 1st reinforced rib 50 is upright and establish along the vehicle fore-and-aft direction substantially, thereby sets a roof beam in place the rigidity of 10 vehicle fore-and-aft direction than common height in front overhang.And, owing to be connected with many articles the 2nd reinforced ribs 56 that extend at vehicle-width direction on the 1st reinforced rib 50, thereby supporting rigidity is improved.Like this, the set a roof beam in place rigidity of 10 vehicle fore-and-aft direction of front overhang is just fully guaranteed.Therefore, if never graphic suspension arm is to the front overhang 10 input load F (with reference to Fig. 1 (A)) that set a roof beam in place when travelling usually, front overhang is set a roof beam in place and 10 will be out of shape, and can not produce breakage such as fracture.
On the other hand, when collide the front, will be input to front overhang to the collision load of rear view of vehicle one side and set a roof beam in place on 10 a pair of front suspension curb girder 16,18.Herein, in the present embodiment, owing to formed thinner wall section 58 in the place ahead of rear side installation portion 54 one side, thereby lower in the rigidity of vehicle-width direction than common 60.And, owing in the formation scope of thinner wall section 58, formed the expression lobes portion 62 parallel substantially with the rear end side of the 1st reinforced rib 50, thus easily deformable at vehicle-width direction.In addition, aforesaid the 2nd reinforced rib 56 is arranged on and thinner wall section 58 nonoverlapping scopes, thereby the rear end side of the 1st reinforced rib 50 compares with front, is easy to be out of shape to vehicle-width direction.In view of the above, if input collides load, shown in Fig. 1 (B), the rear end side of the 1st reinforced rib 50 (being configured in the 2nd reinforced rib 56 at end and the part between the rear side installation portion 54) will be to the inboard compressive plastic deformation that produces of vehicle-width direction.That is, distortion launches as follows: the rear end side of the 1st reinforced rib 50 is squeezed expression lobes portion 62 broken to the lug boss Width, invade to the inside of thinner wall section 58 simultaneously.According to above-mentioned effect, set a roof beam in place 10 distortion process of the front overhang when adopting present embodiment just can guarantee the front collision fully.
As mentioned above, in the casting suspension beam structure of this 1st embodiment, be provided with the 1st reinforced rib 50 at front suspension curb girder 16,18 its longitudinallies of upper edge, simultaneously, on the position (the place ahead one side of rear side installation portion 54) that front suspension after cross member 14 and front suspension curb girder 16,18 intersect, be provided with thinner wall section 58 and expression lobes portion 62, thereby both can guarantee the rigidity from the input of front suspension arm, can guarantee the energy absorption when collide the front again.
Also have, in the casting suspension beam structure of this 1st embodiment, owing to be provided with the 1st reinforced rib 50, it couples together installed in front portion 52 and rear side installation portion 54; thinner wall section 58 is connected in the part of the specialized range of the place ahead one side that is positioned at rear side installation portion 54 in the 1st reinforced rib 50; therefore; set a roof beam in place on 10 if the collision load when collide the front is input to front overhang; not only thinner wall section 58 and expression lobes portion 62 produce distortion from body; along with the distortion of thinner wall section 58 and expression lobes portion 62, also can play the effect of the connecting bridge with thinner wall section 58 on the 1st reinforced rib 50 being moved to thinner wall section 58 1 sides.That is, in the present embodiment, the result of association's action usefulness of the 1st reinforced rib 50 and thinner wall section 58 can make the 1st reinforced rib 50 effectively and rapidly be out of shape to inboard generation of vehicle-width direction.As a result, adopt this 1st embodiment, the energy absorption in the time of just can improving the front collision.
And, in the casting suspension beam structure of this 1st embodiment, not only be provided with the 1st reinforced rib 50 that extends generally along the vehicle fore-and-aft direction, also the end of many articles the 2nd reinforced ribs 56 that extend at vehicle-width direction is connected in the 1st reinforced rib 50, thereby can reinforces the 1st reinforced rib 50 by many articles the 2nd reinforced ribs 56 in friendship mode direct with it.Therefore, can improve rigidity to the input of the front suspension arm when travelling usually.In addition, the 2nd reinforced rib 56 is located at and thinner wall section 58 nonoverlapping scopes, thus the front when colliding the 2nd reinforced rib 56 can not hinder the distortion of thinner wall section 58.Also have, the 1st reinforced rib 50 is from the scope that can not obtain from the supporting power of the 2nd reinforced rib 56, and is just easily deformable.As a result, adopt this 1st embodiment, just can both guarantee the rigidity from the input of front suspension arm, the energy absorption when guaranteeing the front collision again with higher precision.
Also have, in the casting suspension beam structure of this 1st embodiment, since front overhang set a roof beam in place 10 rear side installation portion 54 the place ahead one side (promptly, do not belong to the set a roof beam in place place of 10 circumference of front overhang) be provided with expression lobes portion 62, thereby can not produce and damage the set a roof beam in place unfavorable factor of 10 strength at repeated alternation of front overhang.That is,, be provided with a plurality of otch at the circumference of suspension beam for the situation of the patent documentation of enumerating as prior art 1, but, if at periphery otch is set like this, will there be the possibility of endurance failure at incision generation stress concentration when travelling usually., under the situation of this 1st embodiment, there is not such unfavorable factor.
(the 2nd embodiment)
Below, with Fig. 4～Fig. 6, the 2nd embodiment (several distortion of expression lobes portion) that casting suspension beam of the present invention is constructed describes.In addition, for the identical component part of aforesaid the 1st embodiment, pay same numeral, and omit its explanation.
In the 2nd embodiment of Fig. 4 (A), (B) expression, in set a roof beam in place the place ahead one side of 10 rear side installation portion 54 of front overhang, the expression lobes portion 70 of the wide cut that having formed looks from the top forms the equilateral triangle shape substantially.One side of expression lobes portion 70 is parallel substantially with the 1st reinforced rib 50.
In addition, formation (setting of the 1st reinforced rib the 50, the 2nd reinforced rib 56 and the setting of thinner wall section 58 etc.) beyond the expression lobes portion 70, identical with aforesaid the 1st embodiment (this point, the situation of the variation of the 2nd embodiment that Fig. 5 described later and Fig. 6 represent is also identical).
In the 1st variation of the 2nd embodiment of Fig. 5 (A), (B) expression,, formed with the expression lobes portion 62 of the 1st embodiment and compared, the opening 72 that plan view shape is identical substantially in set a roof beam in place the place ahead one side of 10 rear side installation portion 54 of front overhang.
In the 2nd variation of the 2nd embodiment of Fig. 6 (A), (B) expression, vehicle-width direction be provided with side by side than the width of the expression lobes portion 62 of the 1st embodiment narrow, more elongated a pair of expression lobes portion 74.
Adopt any one formation among above-mentioned Fig. 4, Fig. 5, Fig. 6, can both obtain effect, the effect identical with aforesaid the 1st embodiment.
(supplemental instruction of embodiment)
In the 1st and the 2nd above-mentioned embodiment, front overhang set a roof beam in place 10 adopted casting suspension beam of the present invention structure, but, be not limited to this, also can adopt the present invention to beam rear suspension.
Also have, in the 1st and the 2nd above-mentioned embodiment, adopted the formation that is provided with the 1st reinforced rib 50 and the 2nd reinforced rib 56, but, be not limited to this, also can adopt reinforced rib formation (for example, thickening thickness of slab etc.) in addition as high rigid portion.
Have again, in the 1st and the 2nd above-mentioned embodiment,, adopted thinner wall section 58 and expression lobes portion 62,70,74 or opening 72 simultaneously, but, be not limited to this, also can be only constitute low rigid portion with wherein a kind of as low rigid portion.
As mentioned above, cast suspension beam structure of the present invention comprises: by casting, and Showing greatly vehicle-width direction is suspension front beam and the suspension rear cross beam that longitudinally disposes; Showing greatly the vehicle fore-and-aft direction is a pair of suspension curb girder that longitudinally disposes, wherein, On the suspension curb girder, along its longitudinally, be provided with high rigid portion, and at suspension rear cross beam and outstanding The position that the frame curb girder intersects is provided with low rigid portion, therefore, has following good result: both can be true The guarantor can guarantee again the energy absorption when collide the front to the rigidity from the input of front suspension arm Energy.
Also have, cast suspension beam structure of the present invention is to be located at respectively a plurality of of front side and rear side Mounting points is installed in car body one side, and its formation comprises: by casting, and show greatly car Width is suspension front beam and the suspension rear cross beam that longitudinally disposes; Show greatly The vehicle fore-and-aft direction is a pair of suspension curb girder that longitudinally disposes, wherein, and at the suspension curb girder On, along its longitudinally, be provided with high rigid portion, and hand at suspension rear cross beam and suspension curb girder The fork the position, in the place ahead of rear side mounting points one side, be provided with low rigid portion, therefore, have as Lower good result: both can guarantee to guarantee the front again to the rigidity from the input of front suspension arm Energy absorption during collision.
Also have, again in cast suspension beam structure of the present invention, high rigid portion set for make it Installed in front point and rear side mounting points are coupled together, after being positioned in low rigid portion and the high rigid portion The part of the prescribed limit of the place ahead one side of side mounting points is connected, and therefore, has following good Effect: the association by high rigid portion and low rigid portion when collide the front moves with just making both Distortion, the result, just can so that the energy absorption in front when collision be improved.
Also have, in cast suspension beam structure of the present invention, high rigid portion is by along the vehicle front and back To the 1st reinforcement and the end that extend be connected in the 1st reinforcement, to the vehicle-width direction inboard The 2nd reinforcement more than one or two that extends consists of, and above-mentioned the 2nd reinforcement is established With the nonoverlapping scope of low rigid portion, therefore, have following good result: can be with higher Precision both guaranteed the rigidity from the input of front suspension arm, guarantee again the energy when collide the front The amount absorbent properties.
Claims (13)
1. a casting suspension beam structure is installed in car body one side with a plurality of attachment points (52,54) that are located at front side and rear side respectively, and its formation comprises: showing vehicle-width direction greatly is suspension front cross rail (12) and the suspension after cross member (14) that longitudinally disposes; Showing the vehicle fore-and-aft direction greatly is a pair of suspension curb girder (16,18) that longitudinally disposes, and described suspension front cross rail (12), suspension after cross member (14) and a pair of suspension curb girder (16,18) be is characterized in that by casting:
At above-mentioned suspension curb girder (16,18) go up, be provided with high rigid portion (50 along its longitudinally, 56), at position that above-mentioned suspension after cross member (14) and above-mentioned suspension curb girder (16,18) intersect, the place ahead one side of one side attachment point (54) is provided with low rigid portion (58) at the rear portion.
2. casting suspension beam structure according to claim 1 is characterized in that:
Above-mentioned high rigid portion (50) set for its installed in front point (52) and rear side attachment point (54) are coupled together, the part of specialized range that is positioned at the place ahead one side of above-mentioned rear side attachment point (54) in above-mentioned low rigid portion (58) and the above-mentioned high rigid portion (50) is connected.
3. casting suspension beam structure according to claim 1 and 2 is characterized in that:
Above-mentioned high rigid portion (50,56) be connected in the 1st reinforced rib (50), constitute by the 1st reinforced rib (50) that extends along the vehicle fore-and-aft direction and an end to inboard the 2nd reinforced rib (56) more than or two that extends of vehicle-width direction, and above-mentioned the 2nd reinforced rib (56) is located at and the nonoverlapping scope of above-mentioned low rigid portion (58).
4. casting suspension beam structure according to claim 1 and 2 is characterized in that:
The thickness of slab of the thickness ratio common (60) of above-mentioned low rigid portion (58) is thin.
5. casting suspension beam structure according to claim 3 is characterized in that:
The thickness of slab of the thickness ratio common (60) of above-mentioned low rigid portion (58) is thin.
6. casting suspension beam structure according to claim 4 is characterized in that:
Above-mentioned low rigid portion (58) comprises: long at the vehicle fore-and-aft direction, short, elongated shape at vehicle-width direction, from the expression lobes portion (62,74) of above-mentioned common (60) projection.
7. casting suspension beam structure according to claim 5 is characterized in that:
Above-mentioned low rigid portion (58) comprises: long at the vehicle fore-and-aft direction, short, elongated shape at vehicle-width direction, from the expression lobes portion (62,74) of above-mentioned common (60) projection.
8. casting suspension beam structure according to claim 6 is characterized in that:
Above-mentioned low rigid portion (58) comprises: in a pair of above-mentioned expression lobes portion (74) that vehicle-width direction is arranged side by side.
8. casting suspension beam structure according to claim 7 is characterized in that:
Above-mentioned low rigid portion (58) comprises: in a pair of above-mentioned expression lobes portion (74) that vehicle-width direction is arranged side by side.
9. casting suspension beam structure according to claim 4 is characterized in that:
Above-mentioned low rigid portion (58) comprises: triangle, from the expression lobes portion (70) of above-mentioned common projection.
10. casting suspension beam structure according to claim 5 is characterized in that:
Above-mentioned low rigid portion (58) comprises: triangle, from the expression lobes portion (70) of above-mentioned common projection.
11. casting suspension beam structure according to claim 4 is characterized in that:
Above-mentioned low rigid portion (58) comprises: long at the vehicle fore-and-aft direction, short at vehicle-width direction, expression lobes portion elongated shape, opening (72).
12. casting suspension beam structure according to claim 5 is characterized in that:
Above-mentioned low rigid portion (58) comprises: long at the vehicle fore-and-aft direction, short at vehicle-width direction, expression lobes portion elongated shape, opening (72).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP181450/2003 | 2003-06-25 | ||
| JP2003181450A JP4172339B2 (en) | 2003-06-25 | 2003-06-25 | Cast suspension member structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1576066A CN1576066A (en) | 2005-02-09 |
| CN100423977C true CN100423977C (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100616236A Expired - Fee Related CN100423977C (en) | 2003-06-25 | 2004-06-23 | Cast suspension beam structure |
| CN 200420059199 Expired - Fee Related CN2754970Y (en) | 2003-06-25 | 2004-06-25 | Cast suspension beam structure |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420059199 Expired - Fee Related CN2754970Y (en) | 2003-06-25 | 2004-06-25 | Cast suspension beam structure |
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| JP (1) | JP4172339B2 (en) |
| CN (2) | CN100423977C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129621A (en) * | 2011-11-29 | 2013-06-05 | 铃木株式会社 | Peripheral structure of suspension frame |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4172339B2 (en) * | 2003-06-25 | 2008-10-29 | トヨタ自動車株式会社 | Cast suspension member structure |
| JP4772365B2 (en) * | 2005-04-15 | 2011-09-14 | 株式会社東芝 | Case forming method |
| JP4657018B2 (en) * | 2005-06-14 | 2011-03-23 | 日本軽金属株式会社 | Suspension member |
| DE102009043474A1 (en) * | 2008-10-30 | 2010-05-12 | Ksm Castings Gmbh | Front axle for a motor vehicle and method for its production |
| JP2012236511A (en) * | 2011-05-12 | 2012-12-06 | Suzuki Motor Corp | Vehicular suspension frame made of light metal |
| JP5911174B2 (en) * | 2012-06-15 | 2016-04-27 | 本田技研工業株式会社 | Subframe for vehicle |
| US9776660B2 (en) * | 2013-04-26 | 2017-10-03 | Honda Motor Co., Ltd. | Vehicle subframe |
| CN109484484A (en) * | 2018-11-30 | 2019-03-19 | 东风商用车有限公司 | Lightweight frame tail crossbeam |
| JP7440454B2 (en) | 2021-04-09 | 2024-02-28 | トヨタ自動車株式会社 | automotive suspension |
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| US20020113394A1 (en) * | 2000-12-28 | 2002-08-22 | Ziech James F. | Modular cast independent front suspension subframe |
| JP2002321657A (en) * | 2001-04-27 | 2002-11-05 | Nissan Motor Co Ltd | Body floor structure of automobile |
| CN2754970Y (en) * | 2003-06-25 | 2006-02-01 | 丰田自动车株式会社 | Cast suspension beam structure |
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- 2004-06-23 CN CNB2004100616236A patent/CN100423977C/en not_active Expired - Fee Related
- 2004-06-25 CN CN 200420059199 patent/CN2754970Y/en not_active Expired - Fee Related
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| US5251932A (en) * | 1990-09-26 | 1993-10-12 | Mazda Motor Corporation | Front body structure of automotive vehicle |
| JPH06298121A (en) * | 1993-04-16 | 1994-10-25 | Toyota Motor Corp | Structure of front body |
| JPH08198134A (en) * | 1995-01-22 | 1996-08-06 | Mitsubishi Motors Corp | Cross-member of aluminum alloy |
| JP2001063630A (en) * | 1999-08-26 | 2001-03-13 | Nissan Motor Co Ltd | Vehicle body side part structure |
| US20020113394A1 (en) * | 2000-12-28 | 2002-08-22 | Ziech James F. | Modular cast independent front suspension subframe |
| JP2002321657A (en) * | 2001-04-27 | 2002-11-05 | Nissan Motor Co Ltd | Body floor structure of automobile |
| CN2754970Y (en) * | 2003-06-25 | 2006-02-01 | 丰田自动车株式会社 | Cast suspension beam structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103129621A (en) * | 2011-11-29 | 2013-06-05 | 铃木株式会社 | Peripheral structure of suspension frame |
| CN103129621B (en) * | 2011-11-29 | 2015-04-22 | 铃木株式会社 | Peripheral structure of suspension frame |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005014728A (en) | 2005-01-20 |
| JP4172339B2 (en) | 2008-10-29 |
| CN1576066A (en) | 2005-02-09 |
| CN2754970Y (en) | 2006-02-01 |
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