CN1840370B - Torsion beam type rear suspension - Google Patents
Torsion beam type rear suspension Download PDFInfo
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- CN1840370B CN1840370B CN2006100679554A CN200610067955A CN1840370B CN 1840370 B CN1840370 B CN 1840370B CN 2006100679554 A CN2006100679554 A CN 2006100679554A CN 200610067955 A CN200610067955 A CN 200610067955A CN 1840370 B CN1840370 B CN 1840370B
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Abstract
Disclosed is a torsion beam type rear suspension which comprises a pair of right and left trailing arms (2), a torsion beam (3), and a spring seat (6) disposed in a corner region defined at a junction between each of the lateral ends of the torsion beam and a rear portion (2c) of a corresponding one of the trailing arms to form a mounting seat for a coil spring (8). A vertical flange (13) is formed along a laterally inner edge (12) of the spring seat to have a longitudinally front edge extending vertically along a rear side surface of the torsion beam. The spring seat has a first region (10, 7b) of disposed opposed to the corresponding trailing arm and fixed thereto approximately in its entirety, and a second region (16, 14a) disposed opposed to the torsion beam and fixed thereto only through the vertical flange. The torsion beam type rear suspension of the present invention can improve the supporting rigidity of the spring seat relative to a coil spring without increasing the rigidities of the spring seat and trailing arm themselves, while allowing the risk of stress concentration occurring at an end of the torsion beam to be reduced, so as to achieve increased chassis rigidity and adequately maintain suspension functions.
Description
Technical field
The present invention relates to torsion beam type rear suspension.
Background technology
Torque beam suspension comprises the torque beam that extends along the overall width direction, and the arm that extends along the vehicle body fore-and-aft direction of pair of right and left, and the end of above-mentioned torque beam is connected the central part of the length direction of above-mentioned arm.Above-mentioned torque beam suspension is used in small-sized FF (front engine front drive) car morely.At this moment, shown in patent documentation 1 (Japanese Patent open communique spy open 2001-321846 number), general employing is connected the front end of arm on the vehicle body, and wheel is installed in the trailing arm type structure of the rear end of arm.In addition, coil spring also is installed.So,, spring perch is being set by the bight that trailing arm and torque beam constituted for carrying above-mentioned coil spring.Above-mentioned spring perch is fixed on the trailing arm (with reference to patent documentation 2: Japanese Patent open communique spy open 2004-34866 number) usually.
The rideability of vehicle is subjected to the influence of the rigidity of crawler body to a great extent.Therefore, when by torque beam suspension when improving the rigidity of crawler body, be necessary the rigidity of the trailing arm that improves spring perch and support this spring perch,, this method has certain limit after all.And, if improve the rigidity of spring perch or trailing arm easily, might make between above-mentioned spring perch or trailing arm and the torque beam and can't obtain rigid balancing, thereby make suspension function impaired.
Summary of the invention
In view of the above-mentioned problems, the object of the present invention is to provide a kind of torsion beam type rear suspension that not only can guarantee the suspension function of vehicle fully but also can improve the rigidity of crawler body.Thus, can improve the rideability of vehicle by the rigidity that improves crawler body.
Torsion beam type rear suspension of the present invention, comprise: the trailing arm of pair of right and left, extend along the vehicle body fore-and-aft direction, this front end to the vehicle body fore-and-aft direction of trailing arm fluctuates with respect to vehicle body and is supported possibly, and this rearward end to the vehicle body fore-and-aft direction of trailing arm is supported with and rotates trailing wheel freely; Along the torque beam that the overall width direction is extended, each end of its length direction is connected with the central part of the vehicle body fore-and-aft direction of above-mentioned trailing arm, and from overlooking direction, described torque beam increases gradually from central part to each end width of overall width direction; And be arranged on the bight that the rear portion constituted by the end of the length direction of above-mentioned torque beam and above-mentioned trailing arm, and constitute the spring perch of helical spring mount pad, above-mentioned spring perch comprises the underside wall portion that constitutes helical spring mount pad, and by the rearward end of this spring perch and the overall width direction inside part setting flange that forms of warpage upward, above-mentioned setting flange, have along the vehicle body fore-and-aft direction and extend, and the front-end edge portion of vehicle body fore-and-aft direction is fixed on the 1st flange part on the above-mentioned torque beam, and the rear end that is positioned at the vehicle body fore-and-aft direction of above-mentioned spring perch, extend along the overall width direction, and be fixed on the 2nd flange part on the above-mentioned trailing arm, the height of above-mentioned the 2nd flange part is higher than the height of above-mentioned the 1st flange part, the front-end edge portion of the underside wall portion of above-mentioned spring perch is configured to extend along the length direction of above-mentioned torque beam, the distance certain at interval with this torque beam.
Adopt above-mentioned torsion beam type rear suspension, be fixed on the torque beam,, can improve spring perch with respect to helical spring rigidity of support so need not to improve the rigidity of spring perch or trailing arm because spring perch not only is fixed on the trailing arm.
Said structure, in the overall width direction inboard of spring perch, promptly from trailing arm to the inboard position separated by a distance of overall width direction, be provided with the setting flange that extends along the vertical direction, and only spring perch be fixed on the torque beam by this setting flange.In other words, other positions corresponding to above-mentioned torque beam of spring perch are not fixed on the torque beam.
Adopt said structure,, but also be fixed on the torque beam, therefore need not to improve the rigidity of spring perch or trailing arm, can improve spring perch with respect to helical spring rigidity of support owing to spring perch not only is fixed on the trailing arm.In addition, because in the position corresponding to torque beam of spring perch, only have the setting flange that extends up and down along torque beam to be fixed on the torque beam, and other positions are in the on-fixed state with respect to torque beam, therefore can reduce the problem that stress concentration takes place on torque beam.
In above-mentioned torsion beam type rear suspension, the front-end edge portion of the vehicle body fore-and-aft direction of the 1st flange part can have to vehicle body the place ahead and overall width direction outside bevelled rake, and only have this rake to be fixed on the torque beam.Said structure preferably combines and is adopted with having overlooking under trailing arm from the direction to the inboard curved shape that caves in of overall width direction.Thus, the motion that can make trailing arm is through spring perch and the harmful effect that torque beam is produced is reduced.
In above-mentioned torsion beam type rear suspension, the front-end edge portion of the vehicle body fore-and-aft direction of the 1st flange part can give butt along the vertical direction with the rear side surface of torque beam, and only have the top of the front-end edge portion of the 1st flange part to be fixed on the torque beam.Adopt said structure, owing to only have the top of the setting flange that extends up and down along torque beam to be fixed on the torque beam, so spring perch is relative less with the face of joint of torque beam, thus can reduce the interference that produces between spring perch and the torque beam.In addition, be fixed on the top of the setting flange on the above-mentioned torque beam, comparatively it is desirable to, ride seat on the upper surface of torque beam.Thus, spring perch can collude the extension state and be fixed on the torque beam, thereby can make torque beam more reliable with respect to the support of spring perch.
Adopt said structure, because in the position corresponding to torque beam of spring perch, only above-mentioned setting flange is fixed on the torque beam, and other positions are in the on-fixed state with respect to torque beam, so the rigidity of the leading section of spring perch is relatively low.Therefore, can lower, especially can reduce on torque beam, producing stress concentration because of spring perch is fixed on the harmful effect that torque beam causes.
In above-mentioned torsion beam type rear suspension, the front-end edge portion that erects the vehicle body fore-and-aft direction of flange is fixed on the torque beam.That is, in the above-mentioned spring perch, only have along the setting flange that extends up and down to be fixed on the torque beam, then be in the on-fixed state with respect to torque beam corresponding to other positions of torque beam.
Adopt said structure, can make the rigidity of the leading section that is fixed on the vehicle body fore-and-aft direction on the torque beam of spring perch relatively low.Therefore, can further reduce because of spring perch and be fixed on the torque beam stress concentration that produces in the end of this torque beam.Thus, when being provided with helical spring mount pad at the rear portion of spring perch, above-mentioned helical spring mount pad and near rigidity thereof can be improved by the bigger setting flange of height dimension.
In addition,, comparatively it is desirable to, can form the distortion promotion portion that is roughly parallel to torque beam and is extended in the front portion of the underside wall portion of spring perch for the front portion of the vehicle body fore-and-aft direction that promotes spring perch produces distortion.At this, as distortion promotion portion, comparatively it is desirable to, form the peristome that extends along the overall width direction in the front portion of the underside wall portion of spring perch.
In addition, in the present invention, comparatively it is desirable to, above-mentioned spring perch, its rear portion can be provided with the coil spring mount pad, and its rear end can be provided with the bumper mount pad that is used for mounting shock absorber, and the roughly Zone Full corresponding to the position of above-mentioned trailing arm of above-mentioned spring perch is fixed on the above-mentioned trailing arm.
Adopt above-mentioned torsion beam type rear suspension, because in the position corresponding to torque beam of spring perch, only there is the inside line of overall width direction to be fixed on the torque beam, and other positions are not fixed on the torque beam, therefore, can suppress because of spring perch is fixed on the harmful effect that torque beam causes, can suppress spring perch is given the length direction of torque beam because of the antagonistic force of coil spring or bumper the excessive twisting resistance in end.
In above-mentioned torsion beam type rear suspension, comparatively it is desirable to above-mentioned spring perch, wherein helical spring mount pad and above-mentioned corresponding to being formed with the reinforced rib that extends straight along the vehicle body fore-and-aft direction between the part of trailing arm.Adopt said structure,, need not on spring perch, to be provided with in addition the intensity that strengthening part can improve spring perch by above-mentioned reinforced rib.And in above-mentioned torsion beam type rear suspension, the rear end of the vehicle body fore-and-aft direction of spring perch is provided with the bumper mount pad that is used for mounting shock absorber, thereby has guaranteed that spring perch can bear the rigidity that bumper or coil spring act on the antagonistic force of spring perch.
In above-mentioned torsion beam type rear suspension, comparatively it is desirable to, above-mentioned the 1st flange part is roughly parallel to above-mentioned reinforced rib.Adopt said structure, can pass through the 1st flange part and reinforced rib, improve the rigidity that is arranged on the coil spring mount pad between the 1st flange part and the strengthening rib.And above-mentioned spring perch is oblique upper bevelled rake as if also comprising from reinforced rib to the overall width direction outside, and above-mentioned effect is further improved.That is, above-mentioned spring perch comparatively it is desirable to, by above-mentioned the 1st flange part, and reinforced rib, rake constitutes 3-D solid structure.
In addition, in the present invention, comparatively it is desirable to, the end of the length direction of above-mentioned torque beam, from overlooking, can be provided with the expansion section, the rear end of the vehicle body fore-and-aft direction of this expansion section is compared with front end to the overall width direction outside and is enlarged, and this expansion section with above-mentioned torque beam and the overlapping part of above-mentioned trailing arm, the rear end of vehicle body fore-and-aft direction is more than front end.
Adopt said structure, the end of the length direction of torque beam, the rigidity of the rear end of its vehicle body fore-and-aft direction is higher than front end.
When spring perch was fixed on the torque beam, spring perch can make the rear portion of the vehicle body fore-and-aft direction of torque beam reverse downwards because of the load of giving torque beam that helical spring antagonistic force produces.; as mentioned above; if the end of the length direction of torque beam; the rigidity of the rear end of its vehicle body fore-and-aft direction is higher relatively; so that the effect that the rear portion of above-mentioned torque beam is reversed downwards can average out with the rigidity of torque beam; even therefore spring perch is fixed on the torque beam, also can guarantee the suspension property of torque beam.
In above-mentioned torsion beam type rear suspension, comparatively it is desirable to, spring perch can be fixed on the rear portion of the vehicle body fore-and-aft direction of torque beam.
Description of drawings
Fig. 1 is the birds-eye view of the right side part of torsion beam type rear suspension.
Fig. 2 is the scheme drawing from the torsion beam type rear suspension of rear view of vehicle observation Fig. 1.
Fig. 3 is a scheme drawing from overall width direction inboard to foreign side that observe the torsion beam type rear suspension of Fig. 1 from.
Fig. 4 is a block diagram from overall width direction inboard to foreign side that observe the torsion beam type rear suspension of Fig. 1 from.
Fig. 5 is the birds-eye view of the right side part of torsion beam type rear suspension.
The specific embodiment
Below, in conjunction with the accompanying drawings embodiments of the invention are illustrated.
Fig. 1 is the birds-eye view of right side part that is applied in the torque beam suspension of vehicle rear wheel.Torsion beam type rear suspension 1, comprise along the trailing arm 2 of the pair of right and left of vehicle body fore-and-aft direction extension, along the torque beam 3 that the overall width direction is extended, each end of this torque beam 3 is welded on the fore-and-aft direction central part 2a of trailing arm 2, and above-mentioned thus a pair of trailing arm 2 is connected with the two ends of torque beam 3.
Identical with above-mentioned patent documentation 1 disclosed structure, above-mentioned torque beam 3 is pushed by hollow tube and to be formed, and has special-shaped closed sectional.The shape of above-mentioned special-shaped closed sectional be open U font downwards, and in the length direction end of torque beam 3, the opening of U i section is bigger, and at the central part of the length direction of torque beam 3, the opening of U i section is then narrower.That is, from overlooking direction, torque beam 3 increases gradually from central part to the end width of overall width direction.In addition, the end of the length direction of torque beam 3 is along with to the extension at vehicle body rear and tilt to overall width direction foreign side gradually.That is, from overlooking direction, the end of torque beam 3 is formed with the expansion section E (with reference to Fig. 5) that is roughly the right angle trigonometry shape, and the rear end of its vehicle body fore-and-aft direction is compared with front end to overall width direction foreign side and enlarged.Because comparing with front end, the existence of this expansion section E, the length direction end of torque beam 3, the rear end of its vehicle body fore-and-aft direction have the overlapping part of more and trailing arm 2.That is, the length direction end of torque beam 3, the rear end of its vehicle body fore-and-aft direction are compared with front end and are had higher rigidity.
Along the trailing arm 2 that the vehicle body fore-and-aft direction extends, its front end is formed with circle ring (eye) 4, and this circle encircles 4 and shakes possibly through not shown lining (bush) and to be supported on the vehicle body.The rear end of trailing arm 2 also is formed with support 5, and by this support 5, wheel (not shown) is rotated freely and is supported.
Above-mentioned torsion beam type rear suspension 1 comprises the spring perch 6 that is arranged on by the bight that each end constituted of the overall width direction of the rear portion 2c of trailing arm 2 and torque beam 3.
As mentioned above, the mount pad of coil spring 8 is arranged on the rear portion of the underside wall 7 of spring perch 6, the rear portion of this underside wall 7, and its rigidity is improved by rake 7b and the reinforced rib 9 that is fixed on the trailing arm 2 in fact.Therefore, need not to use other strengthening part also can guarantee the rigidity of support of spring perch 6 with respect to coil spring 8.
The overall width direction lateral border portion of spring perch 6 does not form flange, and it is Zone Full and trailing arm 2 welding roughly.That is, the overall width direction lateral border portion 10 of spring perch 6 has the shape corresponding to the side of the rear portion 2c of trailing arm 2, simultaneously its one region-wide with trailing arm 2 welding.Like this, because the weld zone between above-mentioned spring perch 6 and trailing arm 2 does not form flange, therefore can reduce the interference that 6 pairs of trailing arms 2 of spring perch are produced.
Along the 1st flange part 14 that the vehicle body fore-and-aft direction extends, its height dimension is less, is positioned at the rearward end of spring perch 6 and the 2nd flange part 15 that extends along the overall width direction, and its height dimension is relatively large.That is, spring perch 6 and positions torque beam 3 adjacency, its rigidity is relatively low, and the rigidity at the position of spring perch 6 and mount pad adjacency coil spring 8 is relative higher.
The 1st flange part 14 that extends along the medial margin portion of underside wall 7 and to the vehicle body fore-and-aft direction, its height dimension is relatively low, the leading section 14a of the 1st flange portion 14, promptly with the position of torque beam 3 adjacency, extend to the front upper place, the front-end edge portion of this leading section 14a has the shape with torque beam 3 butts.That is, the rising wood of the leading section 14a of the 1st flange part 14 has the shape that enlarges upward, and its front-end edge portion has the curved shape that is excised along the rear side surface of torque beam 3.In addition, the front-end edge portion of above-mentioned the 1st flange part 14, its top only, i.e. Fig. 2, the oval part X that is surrounded is fixed on torque beam 3 by welding among Fig. 3, and the position that is positioned at the below of this part X then is not fixed on the torque beam 3.
As mentioned above, the front-end edge portion of the 1st flange part 14, its top and torque beam 3 welding, and to vehicle body the place ahead and overall width direction foreign side diagonally extending.This bearing of trend L1 comparatively it is desirable to, and is roughly parallel to the imaginary line L3 that intersects vertically with the axis L2 of the circle ring 4 of trailing arm 2 (trailing arm 2 shake axis).In addition, the front-end edge portion of the 1st flange part 14 comparatively it is desirable to, and its top has rides the shape of seat on the upper surface of torque beam 3.Adopt said structure,, therefore can make torque beam 3 more reliable with respect to the support of spring perch 6 because spring perch 6 is fixed on the torque beam 3 with the state that colludes extension.
The front-end edge portion 16 of the main underside wall part 7a of spring perch 6 does not have flange, and extends along the length direction of torque beam 3.This front-end edge portion 16 comparatively it is desirable to, the distance certain at interval with torque beam 3.In this present embodiment, be formed with the elongate gap 17 of being extended between this front-end edge portion 16 and the torque beam 3 along the length direction of torque beam 3.
Along the setting flange 13 that the medial margin portion 12 and the end edge portion 11 of bottom panel 7 formed, the overall width direction external end edge portion of its 2nd flange part 15 has the curved shape corresponding to the side of trailing arm 2, and is directly welded in trailing arm 2.
In embodiments of the present invention, comparatively it is desirable to, the front portion at the vehicle body fore-and-aft direction of the main underside wall part 7a of spring perch 6 is provided with the opening 20 that reduces rigidity.This opening 20 extends along the overall width direction, and is parallel to the length direction of torque beam 3.
In above-mentioned torsion beam type rear suspension 1, setting flange 13 forms by underside wall 7 warpages of spring perch 6, the front edge that extends along the vertical direction of this above-mentioned setting flange 13 and torque beam 3 welding, and spring perch 6 can be fixed on the torque beam 3 thus.Adopt said structure, spring perch 6 not only is fixed on trailing arm 2, but also is fixed on the torque beam 3, thereby the rigidity of support of spring perch 6 is improved, so trailing arm 2 and spring perch 6 need not to possess higher rigidity.In addition, adopt said structure,, also can not produce harmful effect the torsional deflection of torque beam 3 even spring perch 6 is fixed on the torque beam 3.
In other words, when the front-end edge portion of the main underside wall 7a of spring perch 6 merely is fixed on the torque beam 3, because the motion (movement) of the end of the length direction of torque beam 3 is subjected to the obstruction of spring perch 6, therefore its suspension function can't be brought into play in fact in the end of the length direction of torque beam 3.That is, the torsion beam type rear suspension 1 by a pair of trailing arm 2 and torque beam 3 are constituted will lose its original function that has.In addition, also might be near the inboard end edge portion of overall width direction of torque beam 3 and the fixed position of spring perch 6 problem of generation stress concentration.In contrast to this, in the present invention,, therefore both suspension function can be guaranteed, the problem of above-mentioned stress concentration can be relaxed again because the front-end edge portion of the main underside wall part 7a of spring perch 6 is not fixed on the torque beam 3.
Particularly, in the above-described embodiments, erect flange 13 front-end edge portion top with the fixing part of torque beam 3, to vehicle body the place ahead and overall width direction foreign side diagonally extending, trailing arm 2 has the curved shape to the inboard depression of overall width direction, so at shaking of trailing arm 2, can keep the anchoring strength of spring perch 6 and torque beam 3, the motion of trailing arm 2 simultaneously can be reduced the obstruction that motion produced of torque beam 3 through spring perch 6.
Equally, because the front portion of the main underside wall 7a of portion of spring perch 6 does not form flange, the height of the 1st flange part 14 that extends along the vehicle body fore-and-aft direction of erectting flange 13 is less relatively, so the rigidity of the front portion of spring perch 6 is relatively low, so the motion of trailing arm 2 is through spring perch 6 and can be reduced the obstruction that motion produced of torque beam 3.In addition, the front portion of the main underside wall 7a of portion is provided with the opening 20 that extends along the overall width direction, can promote the distortion of the front portion of spring perch 6 thus, thereby can further improve above-mentioned effect.
In addition, in the above-described embodiments, around the mount pad of coil spring 8, by reinforced rib 9, rake 7b, the 1st flange part 14, the 2 flange parts 15 constitute 3-D solid structure, can improve the rigidity of the mount pad of coil spring 8 thus.In addition, the height of above-mentioned the 2nd flange part 15 is greater than the 1st flange part 14, and the overall width direction outer end of the 2nd flange part 15 is fixed on the trailing arm 2, can bear the antagonistic force of bumper 19 and coil spring 8 thus by the rear portion of spring perch 6.In addition, adopt said structure,, give torque beam 3 excessive twisting resistance because of the antagonistic force of coil spring 8 or bumper 19 so can suppress spring perch 6 because the rigidity of the front portion of spring perch 6 is relatively low.
In addition, spring perch 6 can make the rear portion of torque beam 3 reverse downwards because of the load of giving torque beam 3 that the antagonistic force of coil spring 8 produces.But in the above-described embodiments, because the end of the length direction of torque beam 3, the rigidity at the rear portion of its vehicle body fore-and-aft direction is higher than anterior rigidity, thus can average out with above-mentioned load, thus can guarantee the suspension property of torque beam 3.
Claims (11)
1. torsion beam type rear suspension is characterized in that:
Comprise,
The trailing arm of pair of right and left extends along the vehicle body fore-and-aft direction, and this front end on the vehicle body fore-and-aft direction to trailing arm fluctuates with respect to vehicle body and supported possibly, and this rearward end to the vehicle body fore-and-aft direction of trailing arm is supported with and rotates trailing wheel freely;
Torque beam extends along the overall width direction, and each end of its length direction is connected with the central part of the vehicle body fore-and-aft direction of above-mentioned trailing arm, and from overlooking direction, described torque beam increases gradually from central part to each end width of overall width direction; And
Spring perch, be arranged on the bight that the rear portion constituted by the end of the length direction of above-mentioned torque beam and above-mentioned trailing arm, constitute helical spring mount pad, above-mentioned spring perch comprises the underside wall portion that constitutes helical spring mount pad, and by the rearward end of this spring perch and the overall width direction inside part setting flange that forms of warpage upward
Above-mentioned setting flange has along the vehicle body fore-and-aft direction and extend, and the front-end edge portion of vehicle body fore-and-aft direction is fixed on the 1st flange part on the above-mentioned torque beam, and the rear end that is positioned at the vehicle body fore-and-aft direction of above-mentioned spring perch, extend along the overall width direction, and be fixed on the 2nd flange part on the above-mentioned trailing arm
The height of above-mentioned the 2nd flange part is higher than the height of above-mentioned the 1st flange part,
The front-end edge portion of the underside wall portion of above-mentioned spring perch is configured to extend along the length direction of above-mentioned torque beam, the distance certain at interval with this torque beam.
2. torsion beam type rear suspension according to claim 1 is characterized in that:
The front-end edge portion of the vehicle body fore-and-aft direction of above-mentioned the 1st flange part has the rake to vehicle body the place ahead and overall width direction outside diagonally extending, and only has this rake to be fixed on the above-mentioned torque beam.
3. torsion beam type rear suspension according to claim 2 is characterized in that:
The front-end edge portion of the vehicle body fore-and-aft direction of above-mentioned the 1st flange part gives butt along the vertical direction with the rear side surface of torque beam, and only has the top of the front-end edge portion of the 1st flange part to be fixed on the above-mentioned torque beam.
4. torsion beam type rear suspension according to claim 1 is characterized in that:
The front portion of the underside wall portion of above-mentioned spring perch is formed with the distortion promotion portion that is roughly parallel to above-mentioned torque beam and is extended.
5. torsion beam type rear suspension according to claim 4 is characterized in that:
Above-mentioned distortion promotion portion is arranged on above-mentioned underside wall portion, and is roughly parallel to above-mentioned torque beam and the peristome that extended.
6. torsion beam type rear suspension according to claim 1 is characterized in that:
Above-mentioned spring perch, its rear portion is provided with the coil spring mount pad, and its rear end is provided with the bumper mount pad that is used for mounting shock absorber,
Above-mentioned spring perch, its roughly Zone Full corresponding to the position of above-mentioned trailing arm is fixed on the above-mentioned trailing arm.
7. torsion beam type rear suspension according to claim 6 is characterized in that:
Above-mentioned spring perch is formed with along the reinforced rib of the linearly extension of vehicle body fore-and-aft direction between wherein above-mentioned helical spring mount pad and the above-mentioned part corresponding to trailing arm.
8. torsion beam type rear suspension according to claim 7 is characterized in that:
Above-mentioned the 1st flange part is roughly parallel to above-mentioned reinforced rib.
9. torsion beam type rear suspension according to claim 8 is characterized in that:
Above-mentioned spring perch comprises from above-mentioned reinforced rib being oblique upper bevelled rake to overall width direction foreign side,
The external end edge portion of the overall width direction of above-mentioned rake is fixed on the above-mentioned trailing arm.
10. torsion beam type rear suspension according to claim 1 is characterized in that:
The end of the length direction of above-mentioned torque beam from overlooking direction, is provided with the expansion section,
Above-mentioned expansion section, the rear end of its vehicle body fore-and-aft direction are compared with front end to the overall width direction outside and are enlarged,
Above-mentioned expansion section, itself and above-mentioned torque beam and the equitant part of above-mentioned trailing arm, the rear end of vehicle body fore-and-aft direction is more than front end.
11. torsion beam type rear suspension according to claim 10 is characterized in that:
Above-mentioned spring perch is fixed on the rear portion of the vehicle body fore-and-aft direction of above-mentioned torque beam.
Applications Claiming Priority (12)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005104566A JP4487831B2 (en) | 2005-03-31 | 2005-03-31 | Torsion beam type rear suspension |
| JP2005-104564 | 2005-03-31 | ||
| JP2005-104566 | 2005-03-31 | ||
| JP2005104566 | 2005-03-31 | ||
| JP2005-104568 | 2005-03-31 | ||
| JP2005104568A JP4632036B2 (en) | 2005-03-31 | 2005-03-31 | Torsion beam type rear suspension |
| JP2005-104565 | 2005-03-31 | ||
| JP2005104565A JP4487830B2 (en) | 2005-03-31 | 2005-03-31 | Torsion beam type rear suspension |
| JP2005104564 | 2005-03-31 | ||
| JP2005104568 | 2005-03-31 | ||
| JP2005104565 | 2005-03-31 | ||
| JP2005104564A JP4487829B2 (en) | 2005-03-31 | 2005-03-31 | Torsion beam type rear suspension |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1840370A CN1840370A (en) | 2006-10-04 |
| CN1840370B true CN1840370B (en) | 2011-01-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100679554A Active CN1840370B (en) | 2005-03-31 | 2006-03-16 | Torsion beam type rear suspension |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4487829B2 (en) |
| CN (1) | CN1840370B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009030026A1 (en) * | 2007-09-05 | 2009-03-12 | Magna International Inc. | Twist beam with interlock |
| CN102001270A (en) * | 2010-11-24 | 2011-04-06 | 郑州日产汽车有限公司 | Automotive rear suspension with compliance steering function |
| JP5299470B2 (en) * | 2011-05-16 | 2013-09-25 | 日産自動車株式会社 | Suspension structure and suspension link forming method |
| CN105026189B (en) * | 2013-01-30 | 2017-09-19 | 新日铁住金株式会社 | Torque beam, moment of torsion beam assembly and torque beam suspension device |
| JP7095519B2 (en) * | 2018-09-19 | 2022-07-05 | マツダ株式会社 | Front body structure of the vehicle |
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| FR2793736B1 (en) * | 1999-05-18 | 2001-08-10 | Peugeot Citroen Automobiles Sa | DEFORMABLE CROSS-REAR AXLE WITH SEPARATE SHOCK ABSORBER AND SPRING |
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| DE10336800A1 (en) * | 2003-08-11 | 2005-03-10 | Volkswagen Ag | Torsionally resilient rear axle for road vehicle has modified V- section torsion beam connecting two hinged links with mountings for springs, dampers and wheel stub axles |
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|---|---|---|---|---|
| US5813691A (en) * | 1995-03-24 | 1998-09-29 | Toyota Jidosha Kabushiki Kaisha | Twist beam type suspension having a rigid twist beam |
| FR2793736B1 (en) * | 1999-05-18 | 2001-08-10 | Peugeot Citroen Automobiles Sa | DEFORMABLE CROSS-REAR AXLE WITH SEPARATE SHOCK ABSORBER AND SPRING |
| EP1353814A1 (en) * | 2001-01-23 | 2003-10-22 | Auto Chassis International | Flexible rear axle for motor vehicle |
| DE10336800A1 (en) * | 2003-08-11 | 2005-03-10 | Volkswagen Ag | Torsionally resilient rear axle for road vehicle has modified V- section torsion beam connecting two hinged links with mountings for springs, dampers and wheel stub axles |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1840370A (en) | 2006-10-04 |
| JP2006281971A (en) | 2006-10-19 |
| JP4487829B2 (en) | 2010-06-23 |
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