WO1996031357A1 - Systeme de suspension de vehicule - Google Patents

Systeme de suspension de vehicule Download PDF

Info

Publication number
WO1996031357A1
WO1996031357A1 PCT/GB1996/000732 GB9600732W WO9631357A1 WO 1996031357 A1 WO1996031357 A1 WO 1996031357A1 GB 9600732 W GB9600732 W GB 9600732W WO 9631357 A1 WO9631357 A1 WO 9631357A1
Authority
WO
WIPO (PCT)
Prior art keywords
vehicle according
axle
vehicle
rocker arm
rearward
Prior art date
Application number
PCT/GB1996/000732
Other languages
English (en)
Inventor
Gordon Brown
Original Assignee
Ddt Engineering Limited
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 Ddt Engineering Limited filed Critical Ddt Engineering Limited
Priority to AU51548/96A priority Critical patent/AU5154896A/en
Publication of WO1996031357A1 publication Critical patent/WO1996031357A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G7/00—Pivoted suspension arms; Accessories thereof
    • B60G7/005—Ball joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G5/00—Resilient suspensions for a set of tandem wheels or axles having interrelated movements
    • B60G5/02—Resilient suspensions for a set of tandem wheels or axles having interrelated movements mounted on a single pivoted arm, e.g. the arm being rigid

Definitions

  • the present invention relates to an improved vehicle suspension system which is applicable with particular advantage to off road vehicles, especially trucks, for use on rough/rocky ground, for example, construction sites.
  • the invention relates to such vehicles which have at least two pairs of rear wheels to carry the weight of the vehicle.
  • the wheels it is desirable for the wheels to be allowed freedom of movement in as many directions as possible in order to accommodate the rocky ground over which the vehicle is to be driven.
  • mount the forward and rearward axle of the rear bogie upon a rocker arm to give freedom of movement allowing pitching of the vehicle (ie. movement about a transverse horizontal axis) but even this does not give full freedom of movement between the four wheels.
  • mount each axle upon the rocker arm via a spring mounting such that the distance of the axle from the rocker arm may also vary.
  • a vehicle having an improved suspension system including at least two rear wheel pairs. comprising a left and right forward rear wheel mounted upon a forward rear axle and a left and right rearward wheel mounted upon a rearward rear axle; a left and right rocker arm each comprising an elongate member mounted to pivot about a horizontal transverse axis lying between the forward and rearward wheels, the left rocker arm being coupled to the left end of the forward and rear axles and the right rocker arm being coupled to the right end of the forward and rear axles, the coupling between each axle and its respective rocker arm being arranged such that each axle may move with respect to the rocker arm about a longitudinal axis of the rocker arm such that each of the four wheels an move independently of each other.
  • the wheels can "rock” and “pitch” relative to the rest of the vehicle ie. rotate about a longitudinal and a transverse axis. Such movement is independent of movement of any other wheel. This allows the vehicle to travel readily over extremely rough terrain.
  • the relative movement is achieved by the rocker arm including a bore of circular cross-section with its axis transverse and horizontal with an arcuate inner surface and mounted within the bore a substantially spherical member, the spherical member being coupled to an axle fastening bracket via a pin, the axle fastening bracket being mounted upon the axle.
  • the spherical member rotates about an axis which is longitudinal and horizontal and which allows the axle to rotate with respect to the rocker arm. Because it is spherical, there is also freedom of movement in other directions although this is limited by the construction of the axle fastening bracket and the rocker arm. These serve to act as stops to limit the degree of movement.
  • the spherical member is not exactly spherical but includes flats which bear against the axle fastening bracket. These flats can be used to aid insertion of the sphere for removal if it becomes worn.
  • the spherical member is preferably solid and may be metallic or a suitable polymer. Kevlar has been found to be an appropriate material for the member.
  • the forward and rearward axles are coupled together via tie rods which act as load absorbing equalising beams.
  • tie rods which act as load absorbing equalising beams.
  • a tie rod extends from a central member mounted above the differential housing in the region of the typical mounting of the rocker beams to each axis which each end of the tie rod is mounted via a spherical coupling similar to that used to couple the axles to the rocker beam.
  • Figure 1 is a perspective schematic view of the vehicle
  • Figure 2 is a horizontal section through the suspension of the vehicle with an enlarged detail of the spherical joint:
  • Figure 3 is a section along line A-A of Figure 2: and Figure 4 is a section through line B-B of Figure 2.
  • Vehicle 1 comprises a discharge truck for use on a construction site. It includes an improved suspension system for rear wheels 3,5,7, and 9.
  • the left and right forward wheels 3,5 are mounted respectively upon a forward axle 10 having left end 11 and right end 13.
  • the left rear wheel 7 is mounted upon left end 15 of rear axle 14 and the right rear wheel 9 is mounted to its right end 17.
  • a left and right rocker arm 19.21 each comprises an elongate member mounted to the truck via a bracket 23 pivotable about a horizontal transverse axis 25 lying between the forward and rearward wheels.
  • the left rocker arm 19 is coupled to the left end 11 of the forward axle and left end 15 of rear axle via couplings 27, 29.
  • the right rocker arm 21 is coupled to the right end of front axle 13 and right end of rear axle 17 via couplings 31,33 respectively.
  • the couplings are arranged such that each axle can rotate with respect to the rocker arms about a longitudinal axis so that the four wheels can move independently of each other.
  • the coupling can be seen in more detail if the enlarged section of figure 2 and figure 3 is referred to where only one coupling 29 is illustrated.
  • the rocker arm 19 includes a bore 35 of circular cross-section and an arcuate inner surface 37.
  • Mounted within the bore is a substantially spherical member 39 coupled to axle fastening bracket 41 via pin 43.
  • the spherical member 39 can rotate about the longitudinal axis of the rocker arm 19 but also in the direction parallel to the plane of the paper as shown in figure 3. Such movement is limited only by the structure of the axle bracket 41 bearing against rocker arm 19. However, the movements that the wheel can achieve is sufficient for the wheel to be able to accommodate rocky terrain.
  • the spherical member 39 is not exactly spherical but includes flats 45 which are useful for removing and inserting the member.
  • Differential gear 47 couple the right and left sides of the axles 10 and 14 to allow differential movement between the wheels.
  • tie rods 49, 51 are mounted to position above the differential gears 47 in a central position over the differential gears 47 and coupling the rear axle to central member 53 and the forward axle to the central member 53 via brackets 55.
  • the rear suspension bogie is suspended from the main vehicle chassis by a downwardly depending main load bearing bracket, movable connected to the rocker arm.
  • the rocker arm is pivoted centrally about the downwardly depending bracket.
  • At each end of the rocker arm are the large spherical plastic bush members inside the axle fastening bracket, which allow the axle to move in an up and down direction so that the forward and rearward rear wheels on the same side of the vehicle can be at different distances from the vehicle body, and can also rotate through an arc so that the left hand and right hand rearward rear wheels can also be at different distances from the body. This allows all four rear wheels of the bogie to move independently of each other.
  • Specific embodiments to the present invention may provide a torque reactive suspension system incorporating geometric lateral load absorbing equalising rocker arms and torque rods.

Landscapes

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

Abstract

Camion à utiliser sur des sols irréguliers ou pierreux, par ex. camion-benne à utiliser sur des sites de construction, doté d'une suspension améliorée qui comporte un essieu milieu (10) et un essieu arrière (14), les essieux milieu et arrière étant chacun connectés par des premier et second culbuteurs (19, 21) qui s'étendent dans la direction de déplacement du véhicule, lesdits culbuteurs étant reliés à l'essieu milieu et à l'essieu arrière par l'intermédiaire d'une pluralité de dispositifs de couplage (27, 29, 31, 33), chaque dispositif comprenant un élément pratiquement sphérique. Ladite structure peut permettre aux roues de basculer et de tanguer par rapport au reste du véhicule et permettre le mouvement indépendant de chaque roue par rapport à chaque autre roue. Cela permet au véhicule de se déplacer facilement sur des terrains extrêmement irréguliers.
PCT/GB1996/000732 1995-04-01 1996-03-27 Systeme de suspension de vehicule WO1996031357A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU51548/96A AU5154896A (en) 1995-04-01 1996-03-27 Vehicle suspension system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9506805.2 1995-04-01
GBGB9506805.2A GB9506805D0 (en) 1995-04-01 1995-04-01 Vehicle suspension system

Publications (1)

Publication Number Publication Date
WO1996031357A1 true WO1996031357A1 (fr) 1996-10-10

Family

ID=10772372

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1996/000732 WO1996031357A1 (fr) 1995-04-01 1996-03-27 Systeme de suspension de vehicule

Country Status (3)

Country Link
AU (1) AU5154896A (fr)
GB (1) GB9506805D0 (fr)
WO (1) WO1996031357A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR708188A (fr) * 1930-12-22 1931-07-21 Baj Et Fond Ets Perfectionnements aux véhicules à essieux rapprochés
US1912498A (en) * 1930-02-27 1933-06-06 Automotive Engineering Corp Resilient suspension for vehicles
DE1865807U (de) * 1962-11-16 1963-01-17 Fahr Ag Maschf Landwirtschaftliches anhaengefahrzeug mit einer doppelachse.
FR1317358A (fr) * 1961-12-29 1963-02-08 Perfectionnements apportés aux trains moteurs à essieux jumelés pour véhicules automobiles
DE1919911A1 (de) * 1968-07-01 1970-01-29 Hendrickson Mfg Co Achsfederung fuer Fahrzeuge
FR2343614A1 (fr) * 1976-03-08 1977-10-07 Gatserelia Michel Equipage mobile tous terrains et vehicules le comportant
FR2349466A1 (fr) * 1976-04-26 1977-11-25 Gould Inc Dispositif de suspension en tandem
US4120515A (en) * 1977-04-15 1978-10-17 Caterpillar Tractor Co. Suspension system for tandem axle vehicles
EP0082547A1 (fr) * 1981-12-23 1983-06-29 Roberto Perlini Système de suspension pour essieux en tandem de véhicules industriels
WO1989002989A1 (fr) * 1987-10-02 1989-04-06 Plastic Bearing Housing Australasia Pty. Ltd. Ensembles de paliers a voie dedoublee
GB2209716A (en) * 1987-09-11 1989-05-24 Gordon Joseph Taylor Bush assembly

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1912498A (en) * 1930-02-27 1933-06-06 Automotive Engineering Corp Resilient suspension for vehicles
FR708188A (fr) * 1930-12-22 1931-07-21 Baj Et Fond Ets Perfectionnements aux véhicules à essieux rapprochés
FR1317358A (fr) * 1961-12-29 1963-02-08 Perfectionnements apportés aux trains moteurs à essieux jumelés pour véhicules automobiles
DE1865807U (de) * 1962-11-16 1963-01-17 Fahr Ag Maschf Landwirtschaftliches anhaengefahrzeug mit einer doppelachse.
DE1919911A1 (de) * 1968-07-01 1970-01-29 Hendrickson Mfg Co Achsfederung fuer Fahrzeuge
FR2343614A1 (fr) * 1976-03-08 1977-10-07 Gatserelia Michel Equipage mobile tous terrains et vehicules le comportant
FR2349466A1 (fr) * 1976-04-26 1977-11-25 Gould Inc Dispositif de suspension en tandem
US4120515A (en) * 1977-04-15 1978-10-17 Caterpillar Tractor Co. Suspension system for tandem axle vehicles
EP0082547A1 (fr) * 1981-12-23 1983-06-29 Roberto Perlini Système de suspension pour essieux en tandem de véhicules industriels
GB2209716A (en) * 1987-09-11 1989-05-24 Gordon Joseph Taylor Bush assembly
WO1989002989A1 (fr) * 1987-10-02 1989-04-06 Plastic Bearing Housing Australasia Pty. Ltd. Ensembles de paliers a voie dedoublee

Also Published As

Publication number Publication date
GB9506805D0 (en) 1995-05-24
AU5154896A (en) 1996-10-23

Similar Documents

Publication Publication Date Title
US7048286B2 (en) Rear axle of a passenger vehicle with five individual links
US8480106B1 (en) Dual suspension system
EP0243102B1 (fr) Suspension de véhicule
US4840394A (en) Articulated suspension system
US6588779B2 (en) Vehicle wheel suspension arrangement
US4589677A (en) Suspension for a rigid axle for vehicles
CA2214963A1 (fr) Suspension d'essieu pivotante montee sur ressort
US5566969A (en) Rear axle suspension with reduced oversteer
SU1724007A3 (ru) Осевой агрегат дл автомобильного прицепа
US5401049A (en) Heavy-duty, semi-independent suspension system for a wheeled vehicle
US4372418A (en) Front set of wheels for an automobile vehicle
CA2013570C (fr) Vehicule a quatre roues directrices, muni d'une barre d'accouplement avant-arriere coulissante
JPS6357335A (ja) 全輪駆動オフロード車
EP1175305B1 (fr) Suspensions pneumatiques d'essieux en tandem pour vehicules utilitaires
US5088570A (en) Steerable rear dual axle system for large trucks
US4418932A (en) Front axle suspension system for a vehicle chassis
CA1301661C (fr) Vehicule tout-terrain
US20030102645A1 (en) Arrangement for wheel suspension
US5333895A (en) Dual rear axle system for large vehicles
US4451054A (en) Vehicle suspension system
US4278270A (en) Sprung vehicles
US6203039B1 (en) Independent suspension system with improved vertical alignment and range of travel
EP0560242B1 (fr) Direction de roues arrières pour une voiture avec un essieu-arrière en forme d'oméga
US4046212A (en) Steerable front wheel drive transmitting mechanism
WO1996031357A1 (fr) Systeme de suspension de vehicule

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AL AM AT AU AZ BB BG BR BY CA CH CN CZ DE DK EE ES FI GB GE HU IS JP KE KG KP KR KZ LK LR LS LT LU LV MD MG MK MN MW MX NO NZ PL PT RO RU SD SE SG SI SK TJ TM TR TT UA UG US UZ VN AM AZ BY KG KZ MD RU TJ TM

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): KE LS MW SD SZ UG AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase
REG Reference to national code

Ref country code: DE

Ref legal event code: 8642

NENP Non-entry into the national phase

Ref country code: CA