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EP0656837A1 - Suspension independante pour une roue - Google Patents

Suspension independante pour une roue

Info

Publication number
EP0656837A1
EP0656837A1 EP93913209A EP93913209A EP0656837A1 EP 0656837 A1 EP0656837 A1 EP 0656837A1 EP 93913209 A EP93913209 A EP 93913209A EP 93913209 A EP93913209 A EP 93913209A EP 0656837 A1 EP0656837 A1 EP 0656837A1
Authority
EP
European Patent Office
Prior art keywords
wishbone
axes
axis
shock
wishbones
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP93913209A
Other languages
German (de)
English (en)
Inventor
Melvin Douglas Albert Vickery
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TOTAL MOBILITY VEHICLES Ltd
Original Assignee
TOTAL MOBILITY VEHICLES Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TOTAL MOBILITY VEHICLES Ltd filed Critical TOTAL MOBILITY VEHICLES Ltd
Publication of EP0656837A1 publication Critical patent/EP0656837A1/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/02—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring
    • B60G15/06—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper
    • B60G15/062—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having mechanical spring and fluid damper the spring being arranged around the damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
    • B60G11/14—Resilient suspensions characterised by arrangement, location or kind of springs having helical, spiral or coil springs only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/001—Suspension arms, e.g. constructional features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/20—Type of damper
    • B60G2202/21—Type of damper with two dampers per wheel, arranged before and after the wheel axis

Definitions

  • the present invention relates to an independent wheel suspension for vehicles, particularly but not exclusively for all-terrain vehicles.
  • Independent wheel suspensions for all-terrain vehicles must allow a large degree of travel to cope with rough terrain but this is usually achieved at the expense of ride comfort.
  • the present invention aims to provide an independent wheel suspension suitable for all-terrain vehicles, which affords better ride comfort than conventional suspensions while still permitting a large degree of travel.
  • an independent wheel suspension comprising upper and lower wishbones, each of which is pivoted at one end on the structure of the vehicle about a respective axis, the axes being parallel to each other and to a longitudinal axis of the vehicle, a wheel support which is pivotably connected to the wishbones at their other ends about respective axes parallel to the other axes, and resilient shock-absorbing means pivotably connected at opposite ends to the structure of the vehicle and to one of the wishbones, intermediate the ends of the latter, about respective axes parallel to the other axes so that the resilient shock-absorbing means can pivot about their respective axes as they contract and extend with oscillations of the wishbones in use, with the lower end of the said means describing a transverse arcuate path about the axis of the upper end.
  • This ability of the resilient shock-absorbing means to pivot about the two longitudinal axes as they are compressed or extended results in their progressive loading or unloading and leads to a smooth ride.
  • the resilient shock-absorbing means preferably comprise a shock-absorber and an associated spring.
  • the shock-absorber and the spring may be separate from each other and be pivotably connected to the vehicle structure and the wishbone about separate axes, for example, transversely spaced-apart axes, they are preferably in the form of a telescopic spring/shock-absorber strut.
  • the pivot mounting for the lower end of the telescopic strut preferably comprises a bracket projecting from the wishbone and the wishbone to which the lower end of the strut is connected is preferably the upper wishbone.
  • the bracket is preferably dependent from the upper wishbone so that the lower pivot axis of the strut lies between the two wishbones, below a line joining the pivot axes of the upper wishbone on the vehicle and of the wheel support on the upper wishbone.
  • the suspension of the invention may be used equally well with a driven wheel or a non-driven wheel.
  • the suspension may have two telescopic struts and the lower ends of these struts may be pivoted about a common axis on respective brackets dependent from opposite sides of the upper wishbone so as to leave space for the passage of a drive shaft if the suspension is to be used with a driven wheel.
  • the spring and the shock-absorber are separate from each other, the lower end of the spring may be pivoted on one of the brackets and the lower end shock-absorber may be pivoted on the other bracket, again about a common axis.
  • the two struts or the separate spring and shock-absorber may be parallel to each other or they may diverge or converge towards their common axis of pivoting on the vehicle structure.
  • the present invention also provides a suspension wishbone for use with independent wheel suspensions, having mountings at opposite ends for the pivotable connection of the wishbone to the structure of a vehicle and for the pivotable connection of a wheel support to the wishbone respectively, and a further mounting intermediate its ends for the pivotable connection of one end of resilient shock-absorbing means, preferably a suspension strut, the mountings defining parallel pivot axes transverse, and preferably perpendicular or substantially perpendicular to, the longitudinal median axis of the wishbone.
  • the further mounting preferably comprises a bracket which projects from the wishbone and the wishbone is preferably intended for use as an upper wishbone with the bracket extending downwardly in use.
  • Figure 1 is a perspective view of an independent wheel suspension according to one embodiment of the present invention.
  • Figures 2, 3 and 4 are frontal views of the suspension of Figure 1 at the top of its travel, at its normal ride height and at the bottom of its travel, respectively.
  • an independent wheel suspension according to the invention for an all-terrain vehicle has upper and lower wishbones 2, 3, each of which is pivoted at one end on a chassis member C of the vehicle about a respective axis X, XI (see Figures 2, 3 and 4) .
  • the axes X, XI are parallel to each other and to the longitudinal axis (not shown) of the vehicle.
  • a wheel support 4 is pivotably connected to the other ends of the wishbones 2, 3 about respective axes Y, Yl which are parallel to each other and to the axes X, XI.
  • the wheel support 4 carries a wheel W which, in the embodiment illustrated, is a driven wheel, the drive shaft of which is indicated D.
  • the wheel support 4, the wheel W and the drive shaft D are omitted from Figure 1 for the sake of clarity.
  • the wishbones 2, 3 have bifurcated ends with respective bushes which constitute the pivot mountings defining the axes X, XI, Y and Yl.
  • the suspension 1 also includes two telescopic spring/shock-absorber struts 5, 6 which are spaced-apart longitudinally of the vehicle and are pivotably connected at their upper ends to the chassis member C about a common axis Z and at their lower ends to the wishbone 2 about a common axis Zl intermediate the ends of the wishbone, that is, intermediate the axes X and Y.
  • the axes Z, Zl are parallel to each other and to the axes X, XI, Y and Yl.
  • the pivot mountings for the lower ends of the telescopic struts 5, 6 are formed by respective brackets 7 which project downwardly from opposite sides of the wishbone 2 so that the axis Zl is between the two wishbones 2, 3, that is, is offset downwardly relative to a line joining the axes X and Y.
  • the axis Zl is closer to a line joining the axes XI, Yl of the lower wishbone 3 than to the line joining the axes X, Y of the upper wishbone 2.
  • the two struts 5, 6 converge towards their common axis Z but, in other embodiments, they may diverge towards the axis Z or they may be parallel to each other.
  • the brackets 7 are spaced apart by a distance sufficient to allow room for the drive shaft D to pass between them, as shown in Figures 2, 3 and 4.
  • the brackets 7 are preferably integral with the upper wishbone 2 but they may be formed separately and, for example, welded to the wishbone 2.
  • the struts can pivot about the longitudinal axes Z, Zl as they contract and extend between the top and bottom of the travel of the suspension 1.
  • the lower ends of the struts 5, 6 describe a transverse arcuate path about the upper axis Z, as indicated by the arrows A in Figures 2, 3 and 4, so that, when the suspension is at the top of its travel, the lower ends are located outwardly of the vehicle with respect to the upper ends and with respect to the positions of the lower ends when the suspension is at the bottom of its travel.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

Une suspension indépendante (1) pour une roue destinée aux véhicules tout terrain a des bras oscillants transversaux supérieur et inférieur (2, 3) pivotant à une de leurs extrémités sur la structure (C) du véhicule autour d'axes respectifs (X, X1) qui sont parallèles entre eux et à un axe longitudinal du véhicule, un support de roue (4) qui est connecté en pivotement aux bras oscillants transversaux à leurs autres extrémités autour d'axes respectifs (Y, Y1) parallèles aux autres axes et deux montants télescopiques à ressort pour absorber les chocs (5, 6) connectés en pivotement aux extrémités opposées de la structure (C) du véhicule et au bras oscillant transversal supérieur (2) entre les extrémités de ce dernier autour d'axes respectifs (Z, Z1) parallèles aux autres axes (X, X1; Y, Y1), de sorte que les montants peuvent pivoter par rapport à leurs axes respectifs (Z, Z1) lorsqu'ils se contractent et se détendent en fonctionnement avec les oscillations des bras oscillants transversaux (2, 3), avec les extrémités inférieures des montants effectuant un trajet transversal courbe autour de l'axe (Z) des extrémités supérieures. La capacité des montants (5, 6) à pivoter autour des deux axes (Z, Z1) lorsqu'ils sont comprimés ou qu'ils se détendent fait que leur charge ou décharge sont progressives, ce qui permet une conduite sans à-coups.
EP93913209A 1992-09-02 1993-05-27 Suspension independante pour une roue Ceased EP0656837A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9218588 1992-09-02
GB929218588A GB9218588D0 (en) 1992-09-02 1992-09-02 Independent wheel suspension
PCT/GB1993/001101 WO1994005520A1 (fr) 1992-09-02 1993-05-27 Suspension independante pour une roue

Publications (1)

Publication Number Publication Date
EP0656837A1 true EP0656837A1 (fr) 1995-06-14

Family

ID=10721291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93913209A Ceased EP0656837A1 (fr) 1992-09-02 1993-05-27 Suspension independante pour une roue

Country Status (7)

Country Link
EP (1) EP0656837A1 (fr)
JP (1) JPH08500558A (fr)
KR (1) KR950702918A (fr)
AU (1) AU4334893A (fr)
GB (1) GB9218588D0 (fr)
RU (1) RU95108331A (fr)
WO (1) WO1994005520A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19521861C1 (de) * 1995-06-16 1996-10-24 Porsche Ag Vorrichtung zur Beeinflussung der Federeigenschaften einer Schraubenfeder
HUP9902170A2 (hu) * 1999-06-24 2001-04-28 Gábor Kiss Spirálrugós rugózás
DE102013016078A1 (de) * 2013-09-27 2015-04-02 Man Truck & Bus Ag Feder-Dämpfer-System zur Verwendung in Lagern oder als Dämpfer
NL2012991B1 (nl) * 2014-06-12 2016-07-04 Defenture B V Off-road voertuig.
CN105946492A (zh) * 2016-06-04 2016-09-21 孙麟声 车架悬挂装置
US10645874B2 (en) * 2017-01-04 2020-05-12 Briggs & Stratton Corporation Outdoor power equipment suspension system
CN108748261A (zh) * 2018-05-08 2018-11-06 黄小翠 一种用于机器人底座的减震装置
CN117184301A (zh) * 2022-05-30 2023-12-08 浙江春风动力股份有限公司 全地形车

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE611685C (de) * 1931-12-11 1935-04-04 Hans Schroeter Abfederung der durch einen kurzen und einen laengeren Lenker mit dem Rahmen verbundenen Raeder durch Schraubenfedern, insbesondere fuer Kraftfahrzeuge
US2154569A (en) * 1934-07-12 1939-04-18 Chrysler Corp Vehicle wheel suspension
US2052064A (en) * 1934-09-05 1936-08-25 James F Whisenand Wheel mount
FR931104A (fr) * 1946-07-11 1948-02-13 Perfectionnements à la suspension des véhicules
DE931872C (de) * 1949-11-26 1955-08-18 Karl Dipl-Ing Bittel Schraubenfederung mit nahezu waagerechter Federungskennlinie fuer Kraftfahrzeuge
GB702454A (en) * 1950-06-12 1954-01-20 Donald Bastow M I Mech E Improvements in or relating to independent spring suspension of wheels of motor vehicles
GB773672A (en) * 1952-09-13 1957-05-01 Ferguson Res Ltd Harry Improvements in or relating to vehicle axle and suspension assemblies
DE1233281B (de) * 1962-07-24 1967-01-26 Daimler Benz Ag Abfederung fuer Kraftfahrzeuge
US3209851A (en) * 1963-11-29 1965-10-05 Ford Motor Co Suspension system and engine mounting arrangement for motor vehicles
DE3882161T2 (de) * 1987-04-07 1993-10-14 Technology Investments Ltd Querträger eines Fahrzeugchassis.
DE3909942A1 (de) * 1989-03-25 1990-09-27 Porsche Ag Radaufhaengung fuer die vorderraeder eines kraftfahrzeugs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9405520A1 *

Also Published As

Publication number Publication date
GB9218588D0 (en) 1992-10-14
WO1994005520A1 (fr) 1994-03-17
KR950702918A (ko) 1995-08-23
RU95108331A (ru) 1997-02-10
AU4334893A (en) 1994-03-29
JPH08500558A (ja) 1996-01-23

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