CN101327721B

CN101327721B - Suspension system for vehicle

Info

Publication number: CN101327721B
Application number: CN2008100085358A
Authority: CN
Inventors: R·D·库钦斯基; M·S·兹米斯罗夫斯基
Original assignee: Radar Ind Inc
Current assignee: Grupa Stamping Co ltd
Priority date: 2007-06-22
Filing date: 2008-01-23
Publication date: 2012-01-18
Anticipated expiration: 2028-01-23
Also published as: CA2691602A1; CN102602258B; FR2917669B1; CA2691602C; CN102602258A; FR2917669A1; GB0724522D0; BRPI0707568A2; KR20080112917A; WO2009002332A1; GB2450389A; CN101327721A; DE102008009959A1; ITMI20080904A1; KR101027409B1; GB2450389B; GB0802792D0; MX2009013517A

Abstract

A suspension system pivotally supporting a wheel of a motor vehicle comprises an upper control arm and a lower control arm that are cooperable with a spindle, which supports the wheel. A link interconnects the lower control arm and one of the terminal ends of a vibration damper thereby defining a common axis B bisecting the link. The link has a monolithic construction and a generally uniform thickness. The vibration damper moves along the common axis to absorb vibration transferred from a road surface and through the wheel.

Description

The suspension system that is used for vehicle

Relevant application

The application is a non-provisional application; It is No.60/945 that requirement enjoys in the serial number of submitting on June 22nd, 2007; 613 and be No.60/952 in the serial number that on July 26th, 2007 submitted to, the preceence of 089 U.S. Provisional Patent Application, its full content is with reference to comprising in this article.

Technical field

The present invention relates to the suspension system of wheel of vehicle, and more specifically, relate to the wheel suspension that vertical shock absorber strut is housed, be used to absorb the vibration of also transmitting from the road surface through wheel.

Background technology

Remainder as the system on the power actuated vehicle is the same, and suspension system is carried out complicated function.Suspension system keeps the wheel of power actuated vehicle to aim at going of power actuated vehicle, the motion when a limiting vehicle main body is gone during turning round and when jolting, and steady and comfortable taking is provided for passenger and chaufeur.A lot of suspension systems are arranged in the known prior art.Length arm (SLA) suspension system has been generally to have used for many years on domestically-made vehicle.In the SLA system, through steering swivel, ball-joint assembly and last Lower control arm, each is taken turns on the vehicle frame that all is connected to vehicle independently.

The wishbone suspension system provides many assemblies, such as vehicle frame, Lower control arm, upper suspension arm, the hub that is used for the support wheel assembly and the shock absorber of vehicle.Last Lower control arm comes with respect to power actuated vehicle as steady arm and the fixing position of suspension system and assembly thereof and be connected on the vehicle frame with lining, and this lining permission vehicle wheel component moves up and down in response to the ground-surface irregularity independently.

Have various suspension systems in the prior art, these suspension systems have at least one bar or link, are used to interconnect the vibration absorber that is installed between vehicle body and the Lower control arm.These systems can obtain instruction from people's such as people's such as the United States Patent(USP) No. 4,377,298 of authorizing people such as Finn, Kami United States Patent(USP) No. 4,583,759 and Smith United States Patent(USP) No. 5,375,870.For example, people's such as Finn United States Patent(USP) No. 4,377,298 discloses a kind of suspension system of wheel, and it has the vibration absorber that is installed between vehicle body and the Lower control arm.U-shaped hook that is formed by two metallic forms of a pair of supporting leg and reversed bending or yoke shape partly are connected to neck or the axle collar to engage vibration absorber.The U-shaped hook that people's such as Finn United States Patent(USP) No. 4,377,298 is instructed is failed the additional strengthening of instructing or advising in the U-shaped hook, limiting, and needs a plurality of parts form the U-shaped hook.

For example, people's such as Kami United States Patent(USP) No. 4,583,759 has been instructed arm support structure on a kind of suspension, and it has the vibration absorber that is installed between a vehicle body and the underarm.The U-shaped hook is formed by metal forging, and has neck, and with mesh vibration resorber and a pair of supporting leg, said supporting leg extends to corresponding far-end and fastener is connected to said underarm.U-shaped hook in people's such as Kami the United States Patent(USP) No. 4,583,759 fails to instruct or suggestion limits an additional strengthening in the U-shaped hook, and needs many parts to form the U-shaped hook.And the U-shaped hook in people's such as Kami the United States Patent(USP) No. 4,583,759 is formed by metal forging, thereby has influenced the whole weight of system negatively.

Therefore; Have the chance that is used to improve suspension system and manufacturing approach thereof, it will reduce the quality of U-shaped hook, thus influence that reduces to vibrate and final noise; For suspension system has increased structural integrity, and with the low-cost performance that has strengthened the transmission system application with high power capacity.

Summary of the invention

Suspension system of the present invention is aimed at the wheel assembly of self-propelled vehicle with going of self-propelled vehicle, limited the motion of self-propelled vehicle main body during turning round and when jolting, and steady and comfortable taking is provided for passenger and chaufeur.This suspension system demonstrates many constituent elementss, such as vehicle frame, Lower control arm, upper suspension arm, the hub that is used for the support wheel assembly or the axle and the shock absorber of self-propelled vehicle.The upper suspension arm of suspension system and Lower control arm and axle cooperation, axle and wheel shaft cooperation, it defines a rotation axis and is supporting vehicle wheel component.Shock absorber has first and second ends, one of them terminal and upper suspension arm cooperation.

Connecting rod or U-shaped hitcher have monolithic construction and common homogeneous thickness.Connecting rod interconnects second end of Lower control arm and shock absorber.Connecting rod and shock absorber limit a common axis, and it is divided into two connecting rod and on the direction of the direction that is different from rotation axis, extends.Shock absorber is removable along common axis, to absorb from the road surface and to pass through the vibration that wheel transmits.Connecting rod is the blank drawing that forms from metal, metal alloy and composite thereof.Connecting rod comprises neck and a pair of isolated supporting leg with the common circular cross section that is used to receive shock absorber.

Strengthening rib is out of shape to be got in each supporting leg, thereby absorbs from the road surface and prevent the supporting leg bending during vibration through the wheel transmission when shock absorber.Strengthening rib is further got into neck by distortion, and is tapered away from far-end, to increase the intensity of connecting rod.When strengthening rib during from remote extension to neck, strengthening rib demonstrates first width, and when supporting leg was deformed to neck, strengthening rib demonstrated second width, and when strengthening rib further tapered on the neck, strengthening rib demonstrated the 3rd width.Neck comprises terminal edge and the seam that extends betwixt.This sews up receiving connector, so that connecting rod is fixed on the shock absorber.Each supporting leg all demonstrates one side, this mask have from this facing epitaxy stretch and near the tapered relative periphery edge of far-end, so that make far-end present usually smooth cross-sectional plane.

A kind of advantage of the present invention is that this connecting rod is formed by the metal sheet punching press for suspension system provides improved connecting rod, thereby demonstrates in light weightly, can supply to replace the known cast iron casting connecting rod of prior art.

Another kind of advantage of the present invention is for suspension system provides improved connecting rod, and it has reduced the quality of this connecting rod that is modified.

Another kind of again advantage of the present invention provides a kind of improved connecting rod; It has at least one strengthening rib; This strengthening rib is out of shape each supporting leg that gets into connecting rod; Thereby when shock absorber absorbs from the road surface and prevents that supporting leg is crooked during vibration through the wheel transmission, and the integraty of structure is provided for this connecting rod and whole suspension system.

Another advantage of the present invention provides a kind of improved mounting structure, is used for a left side and right suspension assembly parts are installed to vehicle body as one unit.

Description of drawings

Through with reference to following detailed description, when combining accompanying drawing to consider, other advantage of the present invention will be easy to recognized, and the understanding that improves, wherein:

Fig. 1 explains the transparent view of clear suspension system, and it has a upper arm and a underarm and connecting rod, and this connecting rod and shock absorber cooperation also are connected to said underarm;

Fig. 2 explains the transparent view and the part sectional view of suspension assembly parts of clear Fig. 1;

Fig. 3 A explains clear connecting rod of the present invention, and it has one-piece construction and homogeneous thickness roughly;

Fig. 3 B explains and understands the cross sectional drawing that the 3B-3B along the line of the connecting rod shown in Fig. 3 A obtains;

Fig. 4 explains that first of clear connecting rod of the present invention supplies to select embodiment;

Fig. 5 explains that second of clear connecting rod of the present invention supplies to select embodiment; And

Fig. 6 explains that the 3rd of clear connecting rod of the present invention supplies to select embodiment.

The specific embodiment

With reference to accompanying drawing, wherein, the identical or corresponding part of identical numeral, suspension system of the present invention is shown as 10 usually in Fig. 1 and 2.Suspension system 10 keeps the wheel assembly of power actuated vehicle (not shown) 12 to aim at advancing of power actuated vehicle, the motion the when main body that has limited power actuated vehicle is advanced during turning round and when jolting, and steady and comfortable taking is provided for passenger and chaufeur.Suspension system 10 demonstrates many constituent elementss; Vehicle frame 14 (only being shown partially among Fig. 1), Lower control arm 16, upper suspension arm 18, hub or axle 20 such as vehicle; This axle is used for support wheel assembly 12 and defines rotation axis A, and shock absorber or traveller 22.Upper suspension arm 18 plays the steady arm effect with Lower control arm 16; With with respect to power actuated vehicle and the fixing position of suspension system 10 and constituent elements thereof; And utilize lining and be connected on the vehicle frame 14, its lining allows vehicle wheel component 12 to move up and down independently in response to the irregularity in the road surface.The technical personnel of field of motor vehicles will be recognized; The suspension system 10 that more than is described and also will further be described below can be for generally using other suspension system of suspension system, wishbone suspension system and the type of length arm (SLA) for many years on the home-made machine motor vehicle, and do not limit the scope of the invention.

Shock absorber 22 has first terminal 24 and second end 26, wherein, and second end 26 and upper suspension arm 18 cooperations.Connecting rod or U-shaped are hooked among Fig. 1-3 usually to be represented with 30, shock absorber 22 and Lower control arm 16 are interconnected, as be preferably among Fig. 2 to be shown.When blank passes through progressive die, line mould (line die tool) or automatic mold; The shaping that is stamped of metal stock, metal alloy and composite connecting rod 30 thereof; Provisional application serial number as submitting on June 22nd, 2007 is No.60/945; 613 and be No.60/952 in the provisional application serial number that on July 26th, 2007 submitted to, described in 089, and its integral body is combined in this.

Connecting rod 30 demonstrates an one-piece construction and common homogeneous thickness, as is preferably in and shown among Fig. 3 B.Connecting rod 30 interconnects second terminal 26 of Lower control arm 16 and shock absorber 22.As be preferably among Fig. 2 to be shown, connecting rod 30 limits a common axis B with shock absorber 22, and it is divided into two connecting rod 30, and on the direction that is different from rotation axis A, extends.Shock absorber 22 is removable along common axis B, to absorb the vibration of transmitting and pass through wheel assembly 12 from the road surface.

Referring now to Fig. 3 A, connecting rod 30 further had circular cross section neck 32 and a pair of from neck 32 extend to far-

end

38 and 40 relative supporting

leg

34 and 36 limit.On the circumference of neck 32, form and define a plurality of welding openings 41 so that neck 32 is welded to shock absorber 22.Each far-

end

38 and 40 defines an opening 42 and 44, is used for connecting rod is fixed to the fastener 46 of Lower control arm 16 with reception.Neck 32 comprises

terminal edge

50 and 52 and a pair of

lip

54 and 56 that extends from each

terminal edge

50 and 52, with convenient neck 32 around and during engagement shock absorber 22 terminal, receive the therefrom adaptor union 58 of extension, as be preferably among Fig. 1 and 2 to be shown.

Return now with reference to Fig. 3 A and 3B, each supporting

leg

34 and 36 limits a periphery, representes with 58 that usually it extends to common flange 60, is used to strengthen connecting rod 30.Common flange 60 is further extended to center on said lip 54 and 56.Flange 60 is near the far-end 38 of each (not shown) in supporting

leg

34 and 36 and 40 and be tapered.On the other hand, shown in Fig. 3 A and do not limit the scope of the invention the external partly far-end 38 of flange 60 and 40.Periphery 58 limits the geometric configuration 62 that is generally curve, and is as shown in Figure 5.Periphery 58 limits the geometric configuration (not shown) that is generally linear.

A pair of strengthening

rib

62 and 64 is made into each supporting leg 34 and 36.Rib 62 and 64 extends much further into neck 32, on the direction relative with the far-end of each supporting

leg

34 and 36, is tapered thus, to increase the intensity of connecting rod 30.Strengthening

rib

62 and 64 bridge joint necks 32 and supporting leg 34 and 36.When strengthening

rib

62 and 64 from the remote extension to the neck 32 the time, strengthening

rib

62 and 64 demonstrates first width 66; And when in supporting

leg

34 and 36 each during, demonstrate second width 68, and further taper to 32 last times of neck when strengthening

rib

62 and 64, demonstrate the 3rd width 70 to neck 32 distortion.

Fig. 4 explains that first of clear connecting rod of the present invention supplies to select embodiment, representes with 100 usually.Reference number will be correspondingly be reflected with what difference Fig. 4 explained first to supply to select the embodiment of the connecting rod shown in embodiment and Fig. 3 A, and not limit the scope of the invention.Connecting rod 100 further had circular cross section neck 102 and from neck 102 extend to far-end 108 and 110 a pair of relative supporting leg 104 and 106 limit.Limit and form a plurality of welding openings 111 with welding neck 102 at the round edge of neck 102, thereby neck 102 is connected to shock absorber 22.Neck 102 comprises terminal edge 112 spaced apart from each other and 114, thereby has formed a seam.Other parts of all of connecting rod 100 are the same with the parts of the connecting rod of in Fig. 3 A and 3B, explaining 30.

Fig. 5 explains that second of clear connecting rod of the present invention supplies to select embodiment, representes with 200 usually.Reference number will correspondingly be reflected with what difference Fig. 5 explained second to supply to select the embodiment of the connecting rod shown in embodiment and Fig. 3 A and 4, and not limit the scope of the invention.Referring now to Fig. 5, connecting rod 200 further had circular cross section neck 202 and from neck 202 extend to far-end 208 and 210 a pair of relative supporting

leg

204 and 206 limit.On the periphery of neck 202, form and define many welding openings 211, so that neck 202 is connected to shock absorber 22.Each far-

end

208 and 210 all defines an opening 212 and 214 and is used for connecting rod is fixed to the fastener 46 of Lower control arm 16 with reception.Neck 202 comprises

terminal edge

216 and 218 and a pair of

lip

220 and 222 of each extension from

terminal edge

216 and 218; With convenient neck 202 external and receive the adaptor union 58 that therefrom extends when engaging shock absorber 22 terminal, as be preferably in and show among Fig. 2.

Return now with reference to Fig. 5, each in the supporting

leg

204 and 206 limits a periphery, representes with 224 that usually it extends to common flange 226, is used to strengthen connecting rod 200.Common flange 226 is further extended to center on that to lip 220 and 222.Periphery 224 limits the geometric configuration 228 that is generally linear.A pair of strengthening

rib

230 and 232 is formed in each supporting leg 204 and 206.

Rib

230 and 232 extends much further into neck 202, thereby is tapered in each the relative direction of far-end from supporting

leg

204 and 206, to increase the intensity of connecting rod 200.

Strengthening rib

230 and 232 bridge joint necks 202 and supporting leg 204 and 206.

Strengthening rib

230 and 232 demonstrates uniform width or transformable width.

Fig. 6 explains that the 3rd of clear connecting rod of the present invention supplies to select embodiment, representes with 300 usually.Reference number will correspondingly be reflected with what difference Fig. 4 explained first to supply to select the embodiment of the connecting rod shown in embodiment and Fig. 3 A, and not limit the scope of the invention.Connecting rod 300 is made up of two parts, representes with 302 and 304 usually, when combining, forms neck 306 and a pair of relative supporting

leg

308 and 310 that extends to far-

end

312 and 314 from neck 306 with circular cross section.A plurality of welding openings 315 are formed on the periphery and are limited on the neck 306, so that neck 306 is connected on the shock absorber 22.Neck 306 comprises terminal edge 316A-B spaced apart from each other and 318A-B, thereby has formed a seam.When the end 26 of

part

302 and 304 external shock absorbers 22,

part

302 and 304 is soldered to the there.Other parts of all of connecting rod 300 are identical with the parts of the connecting rod of in Fig. 3 A and 3B, explaining 30.

Than existing systems, such as people's such as Finn United States Patent(USP) No. 4,377; 298, people's such as people's such as Kami United States Patent(USP) No. 4,583,759 and Smith United States Patent(USP) No. 5; 375,870 those systems of being instructed, suspension system 10 of the present invention provides many advantages.Improved connecting rod 30,100,200 and 300 is stamped to form by metal sheet, and it demonstrates lightweight advantage, replaceable cast iron casting connecting rod commonly known in the art.Another advantage that is used for the improved connecting rod of suspension system 10 relates to the quality that reduces connecting rod.Improved connecting rod 30,100,200 and 300 has at least one strengthening rib; This strengthening rib is deformed into each supporting leg of connecting rod; Thereby prevent that supporting leg is crooked when shock absorber absorbs from the road surface vibration of also passing through the wheel transmission, and be the integraty that connecting rod and whole suspension system 10 provide structure.

Although described the present invention with reference to the embodiment that gives an example, one skilled in the art will appreciate that and to do various variations, and equivalent can replace its parts and not depart from scope of the present invention.In addition, can carry out many modifications, so that make specific situation or material be fit to instruction of the present invention and not depart from its basic scope.Therefore, hope that the present invention is not limited to as expection and be used for the best way of embodiment of the present invention and the certain embodiments that is described, but the present invention will comprise the embodiment in all scopes that fall into appending claims.

Claims

1. suspension system, it is used for the wheel of support machine motor vehicle pivotally, and said suspension system comprises:

Upper suspension arm;

Lower control arm, this Lower control arm supports said the wheel with the axle cooperation that limits a rotation axis, said axle;

Shock absorber, it has first and second ends, the said first terminal and said upper suspension arm cooperation; And

Connecting rod; It has one-piece construction and homogeneous thickness, and this connecting rod interconnects second end of said Lower control arm and said shock absorber, and said connecting rod and said shock absorber define a common axis; This common axis is divided into two said connecting rod; And extend being different from the direction of said rotation axis, said shock absorber can move along said common axis, is used to absorb from the road surface and the vibration through the wheel transmission.

2. suspension system according to claim 1 is characterized in that, said connecting rod is stamped to form shape by the blank that is combined to form of metal, metal alloy and metal and metal alloy.

3. suspension system according to claim 2; It is characterized in that; Said connecting rod is further had the neck of circular cross section and is limited from a pair of relative supporting leg of said neck extension; Each of said a pair of relative supporting leg all limits and the isolated far-end of said neck, and each said far-end defines an opening, and this opening is used to receive the fastener that is used for said connecting rod is fixed to said Lower control arm.

4. suspension system according to claim 3; It is characterized in that, said neck comprise two terminal edges and a pair of lip that extends from each said terminal edge with external when said neck and mesh the adaptor union that said second reception when terminal of said shock absorber therefrom extends through.

5. suspension system according to claim 4 is characterized in that, each said supporting leg limit one have a flange that is used to strengthen said connecting rod periphery, and said flange is being tapered near the said far-end of each said supporting leg.

6. suspension system according to claim 5 is characterized in that, one in the said periphery limits linear geometric configuration.

7. suspension system according to claim 5 is characterized in that, a geometric configuration that limits curve in the said periphery.

8. suspension system according to claim 5 is characterized in that, comprises strengthening rib, and this strengthening rib is formed in the said supporting leg, and from said neck extension to said far-end.

9. suspension system according to claim 8 is characterized in that said strengthening rib further is formed in the said neck, thereby on the direction opposite with said far-end, is tapered to increase the intensity of said connecting rod.

10. suspension system according to claim 9 is characterized in that, said neck of said strengthening rib bridge joint and said supporting leg; And when said strengthening rib during from remote extension to neck; Strengthening rib demonstrates first width, and when said supporting leg was transformed into said neck, strengthening rib demonstrated second width; And when strengthening rib further tapered on the neck, strengthening rib demonstrated the 3rd width.

11. a suspension system is used for the wheel of support machine motor vehicle pivotally, and comprises upper suspension arm, Lower control arm, Lower control arm and axle cooperation, and axle limits a rotation axis and support wheel, and said suspension system comprises:

Shock absorber has first and second ends, the said first terminal and said upper suspension arm cooperation; And

Connecting rod; It has one-piece construction and homogeneous thickness, and this connecting rod is used for said second end of Lower control arm and said shock absorber is interconnected, and said connecting rod and said shock absorber limit a common axis; This common axis is divided into two said connecting rod; And extend being different from the direction of said rotation axis, said shock absorber can move along said common axis, is used to absorb from the road surface and the vibration through the wheel transmission.

12. suspension system according to claim 11; It is characterized in that; Said connecting rod is further had the neck of circular cross section and is limited from a pair of relative supporting leg of said neck extension, and this neck is used to receive said shock absorber, and each of said a pair of relative supporting leg all has far-end.

13. suspension system according to claim 12 is characterized in that, said connecting rod comprises strengthening rib, and strengthening rib is out of shape gets into each said supporting leg, thereby prevents that supporting leg is crooked when said shock absorber absorbs from the road surface vibration of also passing through the wheel transmission.

14. suspension system according to claim 11 is characterized in that, the drawing by the blank that is combined to form of metal, metal alloy and metal and metal alloy of said connecting rod.

15. suspension system according to claim 12 is characterized in that, said neck comprises terminal edge and the seam that between said terminal edge, extends, and said seam is fit to receive the adaptor union that is used for said connecting rod is fixed to said shock absorber.

16. suspension system according to claim 12; It is characterized in that, each said supporting leg all demonstrate one have a relative periphery edge face, periphery edge is stretched from said facing epitaxy; And be tapered near far-end, so that make said far-end have smooth cross-sectional plane.

17. suspension system according to claim 16 is characterized in that, said periphery edge is parallel to each other.

18. suspension system according to claim 16 is characterized in that, one in the said periphery edge is linear.

19. suspension system according to claim 16 is characterized in that, said of said supporting leg is curved.

20. suspension system according to claim 16 is characterized in that, said of said supporting leg is non-planar shaped.

21. suspension system according to claim 13 is characterized in that, said strengthening rib is further got into described neck by distortion and is tapered away from said far-end, to increase the intensity of said connecting rod.

22. suspension system according to claim 13 is characterized in that, when strengthening rib during from said remote extension to said neck, said strengthening rib demonstrates first width; When said supporting leg was converted to said neck, strengthening rib demonstrated second width; And when said strengthening rib further tapered on the said neck, strengthening rib demonstrated the 3rd width.