WO1992010390A1 - Dispositif pour vehicule - Google Patents

Dispositif pour vehicule Download PDF

Info

Publication number
WO1992010390A1
WO1992010390A1 PCT/SE1991/000831 SE9100831W WO9210390A1 WO 1992010390 A1 WO1992010390 A1 WO 1992010390A1 SE 9100831 W SE9100831 W SE 9100831W WO 9210390 A1 WO9210390 A1 WO 9210390A1
Authority
WO
WIPO (PCT)
Prior art keywords
pivot
wheel
chassis
ment
swinging arm
Prior art date
Application number
PCT/SE1991/000831
Other languages
English (en)
Inventor
Peter Eriksson
Original Assignee
Peter Eriksson
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 Peter Eriksson filed Critical Peter Eriksson
Publication of WO1992010390A1 publication Critical patent/WO1992010390A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D49/00—Tractors
    • B62D49/06—Tractors adapted for multi-purpose use
    • B62D49/0678—Tractors of variable track width or wheel base

Definitions

  • This invention is related to a device in vehicles comprising a chassis and pivot arms carrying wheels and being pivotable relative to the chassis in substantially vertical planes.
  • the vehicle is preferably a transport vehicle, in particular for more considerable loads.
  • a preferred application for the vehicle is within the forestry, where the vehichle could be intended for transportation of forest products, for instance logs and timber and/or forestry machines, for instance machines for felling, delimbing, cutting, barking and/or chipping of trees.
  • pivot arms make it possible to achieve excellent driving and working properties, in parti ⁇ cular in difficult terrain, such as in the forest.
  • the pivot arms enable, on one hand, even running since they may pivot in substantially vertical planes in adjustment to the terrain conditions.
  • the pivot arms may be adjusted individually so that the vehicle may obtain a desired, for instance horizontal, position also when the ground is sloping.
  • the, particularly, ho ⁇ rizontal position may be obtained by pivoting the pivot arms located farthest down in the slope downwardly, whereas the pivot arms located farthest up in the direction of slope are pivoted upwardly.
  • the pivot arms have a considerable range of pivoting so that a considerable change of the position of the wheels vertically relative to the chassis may be carried out.
  • the vehicle may, upon pivoting downwardly of the pivot arms, obtain a considerable belly clearance, which is preferable for driving over relatively high obstacles.
  • the pivot arms In connection with vehicles with for instance four wheels it is from many points of view suitable to arrange the pivot arms on the chassis so that they point substantially forwardly and rearwardly respectively, that is in directions away from each other, starting from their pivot axes.
  • the wheels On pivoting downwardly of the pivot arms in order to raise the vehicle chassis on one side or both sides, the wheels will then describe arcs while the wheels located on one side of the vehicle approach each other. This means that the wheel base measure on this side will be reduced, which in turn causes a deteriorated stabi ⁇ lity to tendencies to tipping forwardly/rearwardly.
  • the object of the present invention is to develop the de ipe defined in the introduction so as to achieve an increased flexibility as to the operability of the pivot arms.
  • pivot arms being arranged variable in length to change the distance between the pivot axis of the pivot arm and the wheel axis.
  • the solution according to the invention makes it possible to lengthen and shorten respectively the effective length of the pivot arms in operational cases where this is required.
  • said wheel base reduction may be counteracted, eliminated or even reversed into a wheel base increase by extending the pivot arms to necessary degree before, during or after pivoting downwardly of the pivot arms, whereby a stability improve ⁇ ment in the direction forwardly/rearwardly of the vehicle may be obtained.
  • the possibility to change the length of the pivot arms may, however, be of great importance also in other connections, for instance for pivot arms located at one end of a vehicle.
  • Fig 1 is a diagrammatical side view of a vehicle
  • Fig 2 is a partial and partly cut view of the vehicle according to Fig 1 in a certain operational position
  • Fig 3 is a view similar to Fig 2 but illustrating the vehicle in another operational position
  • Fig 4 is a view illustrating a chassis portion, a pivot arm and a wheel in a view from above, the pivot arm being partially cut;
  • Fig 5 is a perspective view illustrating a pivot arm and a power member for pivoting thereof;
  • Fig 6 is a view similar to Fig 4 of an alternative embodi ⁇ ment
  • Fig 7 is a view similar to Fig 6 but illustrating another operational position
  • Fig 8 is a view illustrating the pivot arm and the power member for operation thereof corresponding to the position according to Fig 7.
  • the land vehicle illustrated in Fig 1 comprises a chassis 1 and, in the embodiment, four wheels 2 arranged thereat.
  • the chassis 1 may for instance be of the type comprising forward and rear chassis portions pivotably interconnected for steering purposes about a substantially vertical axis 3.
  • wheel when used in the following, this term is intended to comprise so called bogie arrangements having two or more wheels and such arrangements where one or more wheels act supportingly and guidingly for a drive track.
  • An individual wheel of the vehicle could accordingly be replaced by a bogie or a track drive device.
  • the vehicle is here intended to operate as a carrier for a working machine 4, which may be arranged on the vehicle by means of a " crane as illustrated or any "" other suitable carrying arrangement.
  • the machine 4 is in this case formed by a forestry machine, for instance a tree processor, whereas the vehicle is a terrain vehicle suitable for propulsion in a forest.
  • Each of the wheels 2 of the vehicle is arranged on a pivot arm 5, the pivot axis of which is denoted 6 and which is pivotably arranged at the chassis 1 in substantially verti ⁇ cal planes.
  • power members 7, for instance hydraulic cylinders are arranged and these are suitably variable in length and acting between the vehicle chassis 1 and the pivot arm in question. It appears from Figs 1-3 and 5 that the power member 7 acts between an attachment 8 on the chassis and an attachment 9 on pivot arm 5.
  • the vehicle obtains extraordinarily terrain driving properties by means of the pivot arms 5 and furthermore, the driver may by adequate adjustment of the pivoting positions of the diffe ⁇ rent pivot arms adjust the position of the vehicle to for instance a horizontal one also when the terrain is sloping steeply.
  • pivot arms for the four wheels are in the embodiment arranged so that they project forwardly and rearwardly, that is away from each other, starting from their pivot axes 6. It is pointed out in this connection that it is intended that the pivot arms 5 should be pivotable considerably in vertical direction, the pivot arms normally being pivotable downwardly as well as upwardly from a substantially hori ⁇ zontal intermediate position.
  • the wheel base of the vehicle is illustrated with the designation h in Fig 2 for the adjusted position of the pivot arms 5. If the driver would pivot the pivot arms further downwardly to raise the vehicle chassis, the wheel base measure ⁇ " h in tihe ⁇ Tlorigitudina directionTof the vehicle is decreased, which means a reduction of stability, that is a reduction of the stability to tipping forwardly/rearward ⁇ ly.
  • the pivot arms 5 are arranged variable in length to change the distance between the pivot axes 6 of the pivot arms and the wheels 2.
  • this means that the distance between the pivot axis 6 of a pivot arm and the axis 10 of rotation of the wheel may be increased and decreased respectively as far as the individual pivot arm is concerned.
  • pivot arms 5 are illustrated with their minimum length in Fig 2. In Fig 3 it is illustrated that the pivot arms 5 have been swung downwardly about the axes 10 from their positions shown in Fig 2. If the pivot arms had invariable length this would in the case described cause a decrease of the wheel base measure h. However, it is illustrated in Fig 3 that the pivot arms 5 have been somewhat lengthened relative to the state illustrated in Fig 2.
  • Fig 3 For exemplifying purpose the same wheel base measure h has been chosen in Fig 3 as in Fig 2, which means that pivoting downwardly of the pivot arms 5 may be balanced with lengthening thereof so that the wheel base measure h does not decrease. Moreover, the pivot arms 5 could of course be lengthened more than in Fig 3 so that in reality a wheel base increase would occur relative to the position in Fig 2.
  • each pivot arm comprises at least two parts 11, 12 adjustably moveable relative to each other. It is prefer ⁇ red (see also Figs 4 and 5) that these parts 11, 12 are based upon displaceability of a telescopical nature, that is the parts 11, 12 may be telescopically coordinated immedia ⁇ tely to each other or by means of one or more intermediate 'telescopic elements. In the embodiment it is conceived that part 12 is displaceably received in an internal space in part 11.
  • a power member 13 acts between the parts 11, 12.
  • This power member is preferably arranged withing a space formed by the parts 11, 12 and is, accordingly, with a first end connected to part 11 and with a second end to part 12.
  • the part 11 has the character of a base part of the pivot arm 5 in the sense that it is the part 11 which is pivotably journalled to the chassis 1 about axis 6, whereas according ⁇ ly part 12 extends radially outwardly from part 11.
  • the part 12 comprises at its extreme end a support member 14 arranged for the wheel 2, said support member being, accord ⁇ ingly, located at the extreme end of the pivot arm and comprising some suitable kind of means 15 for applying the wheel 2 to the support member.
  • a drive motor suitably a hydraulic one, for rotating the wheel 2 may be incorporated into or arranged on the support member 14 or otherwise built into a hub for the wheel.
  • the attachment 9 for the power member 7 for pivoting the pivot arm is here provided on the part 11.
  • the vehicle comprises, in the embodiment illustrated in Figs 6-8, for each of the wheels 2 means 16 for lateral displace ⁇ ment of the wheel 2 relative to the chassi 1 to change the tread gauge of the vehicle.
  • the wheel appearing to the left in Fig 1 and its suspension is supposed to be illustrated substantially from above.
  • the displacement means 16 allow the wheel 2 to be displaced laterally relative to the chassis 1 to a considerable degree. It is understood that a substantially improved lateral stability of the vehicle may be obtained if all the wheels thereof are located laterally displaced outwardly from the vehicle in correspondence to that which appears from Fig 7.
  • the swinging arm arrangement is swingable in planes substan ⁇ tially parallel to an axis 10 of rotation of the wheel 2.
  • the swinging arm arrangement 16 comprises, with preference, at least two swinging arms 17, 18, which are swingably connected between the vehicle chassis 1 and wheel 2.
  • the swinging arm arrangement 16 forms suitably an articulated quadrangle, the articulation axles of which closest to the chassis 1 are denoted 19, 20 and the articulation axles of which closest to the wheel 2 are denoted 21, 22.
  • the arrangement 16 forms a parallelo ⁇ gram control, that is the wheel will always be located in planes of rotation substantially parallel to the displace ⁇ ment direction of the vehicle independently of the angular position of the swinging arm arrangement 16.
  • the swinging arm arrangement 16 forms a part of the pivot arm 5 such that the swinging arm arrangement is adapted to accompany the pivot arm on pivoting thereof about the axis 6.
  • a power member 7 for pivot ⁇ ing the pivot arm 5 acts between an attachment 8 on the chassis 1 and an attachment 9 on the pivot arm. It is, however, here preferred that the attachment 9 is arranged on a support member 14 located at the extreme end of the pivot arm.
  • the support member 14 comprises, also here, some suitable kind of means 15 for providing the wheel 2 on the support member.
  • a drive motor suitably a hydraulic one, for rotating the wheel 2 may be incorporated into or arranged on the support member 14 or otherwise built into a hub for the wheel.
  • the swinging arm arrange ⁇ ment 16 has the character of a connection incorporated into pivot arm 5 between a base member 11 of the pivot arm, said base member being the one which is pivotably associated to chassis 1 about the axis 6, and the wheel support member 14.
  • the power member 7 On swinging of the swinging arm arrangement 16 to obtain a tread gauge change, the power member 7 will also swing somewhat laterally which means that the power member 7 should be connected to the chassis 1 and support member 14 via not only imaginary or real hinge axles 23 but also further hinge arrangements 24 allowing the lateral swinging, for instance universal hinges of the ball type.
  • a power member 25 is suitably arranged for swinging the swinging arm arrangement 16 and, accordingly, for the lateral displacement of the wheel.
  • This power member could be formed by a power member variable in length acting between diagonally arranged articulation axles, for instance those denoted 19 and 22, in the swinging arm arrangement 16.
  • the power member will then obtain a protected position within the swinging arm arrangement and this protected position will be even more accentuated if the swinging arms 17, 18 are designed as appears in Fig 8 for the swinging arm 18, namely with a laterally directed, substantially planar portion 26 forming a screen between the power member 25 and the surrounding.
  • the swinging arms comprise portions 27, which extend laterally relative to the wall portion 26 and which interact journalingly with the articulation axles 19-22.
  • each of the swinging arms 17, 18 has an U-shaped cross-section, the shanks of the U-shaped swinging arms being directed towards each other.
  • the length of the pivot arm 5 is variable in the basic manner already described also in the embodiment according to Figs 6-8. More specifically, the pivot arm comprises also here two parts 11, 12 which are mutually displaceable and of which the part 11 has the character of a base part pivotably journalled to chassis 1 about the axis 6.
  • the part 12 is associated to the support member 14 for the wheel 2, more specifically via the swinging arm arrangement 16.
  • the part 12 may comprise or be connected to a connection portion 28, which forms one side of the articulated quadrangle of the swinging arm arrangement 16 and with which the articulation axles 19, 20 of the quadrangle engage.
  • the parts 11, 12 are as previously telescopically coordinated and delimit in unison the space, in which a power member 13 for length variation of the pivot arm is received.
  • the length of the pivot arm may be varied and, moreover, the wheel may be displaced laterally.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Handcart (AREA)

Abstract

Dispositif destiné à un véhicule et comprenant un châssis (1), ainsi que des bras pivotants (5) portant des roues et pouvant pivoter sur des plans sensiblement verticaux par rapport au châssis. Les bras pivotants sont de longueur variable, afin de modifier la distance entre leurs axes de rotation (6) et les roues (2).
PCT/SE1991/000831 1990-12-07 1991-12-05 Dispositif pour vehicule WO1992010390A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9003900A SE467966B (sv) 1990-12-07 1990-12-07 Fordon innefattande ett chassi och vid detta i vaesentligen vertikala plan svaengbara, hjulbaerande pendelarmar
SE9003900-9 1990-12-07

Publications (1)

Publication Number Publication Date
WO1992010390A1 true WO1992010390A1 (fr) 1992-06-25

Family

ID=20381119

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1991/000831 WO1992010390A1 (fr) 1990-12-07 1991-12-05 Dispositif pour vehicule

Country Status (2)

Country Link
SE (1) SE467966B (fr)
WO (1) WO1992010390A1 (fr)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT524U1 (de) * 1994-03-21 1995-12-27 Straub Manfred Absenkbares fahrgestell, insbesondere fuer anhaenger
EP1338495A3 (fr) * 2002-02-26 2003-11-05 Turner Development Limited Hachoir, broyeur à bois sur chenille ou hachoir et broyeur combinés sur chenille
EP1389164A2 (fr) * 2001-05-23 2004-02-18 Bryan P. Prucher Moteur dans un systeme d'entrainement electrique des roues
WO2005090158A1 (fr) * 2004-03-19 2005-09-29 Falck Schmidt Defence Systems A/S Vehicule automoteur
EP1632132A2 (fr) 2004-09-06 2006-03-08 Turner Development Limited Hachoir à bois sur chenille
GB2433236A (en) * 2005-12-16 2007-06-20 Lotus Car Motorcycle with a wheelbase variation mechanism
US7543671B2 (en) * 2007-07-02 2009-06-09 Genie Industries, Inc. Vehicle with variable-length wheelbase
WO2010091460A1 (fr) * 2009-02-10 2010-08-19 James William Tunnecliff Dispositif à roues à différents modes de fonctionnement
DE102012019491A1 (de) * 2012-10-04 2014-04-10 Liebherr-Hydraulikbagger Gmbh Vorrichtung zur Verlagerung des Schwerpunkts einer Baumaschine
DE202014104043U1 (de) 2014-08-28 2015-12-06 Jensen Gmbh Holzzerkleinerer zum Einsatz an Böschungen
FR3049562A1 (fr) * 2016-03-29 2017-10-06 Soc D'innovations Tech Et Ind Avancees Par Abreviation S I T I A Engin roulant automoteur, notamment pour des travaux d'agriculture
EP3670309A1 (fr) 2018-12-21 2020-06-24 Hornberje Holding AB Véhicule forestier
CN111806177A (zh) * 2020-06-03 2020-10-23 中国北方车辆研究所 一种具有伸缩摇臂悬架的四轮车越障控制方法
CN111806178A (zh) * 2020-06-03 2020-10-23 中国北方车辆研究所 一种具有伸缩摇臂悬架的四轮车越壕控制方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2935715A1 (de) * 1978-09-12 1980-03-20 Orvo Kalevi Naamanka Gelaendefahrzeug
WO1984004284A1 (fr) * 1983-04-28 1984-11-08 Haeglinge Ind Ab Tracteur
WO1989000928A1 (fr) * 1987-07-24 1989-02-09 Karlin, Gunvor (Legal Representative For The Estat Vehicule tout-terrain
SE463812B (sv) * 1986-12-16 1991-01-28 Helge Raadstroem Mobil lastbaerare

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2935715A1 (de) * 1978-09-12 1980-03-20 Orvo Kalevi Naamanka Gelaendefahrzeug
WO1984004284A1 (fr) * 1983-04-28 1984-11-08 Haeglinge Ind Ab Tracteur
SE463812B (sv) * 1986-12-16 1991-01-28 Helge Raadstroem Mobil lastbaerare
WO1989000928A1 (fr) * 1987-07-24 1989-02-09 Karlin, Gunvor (Legal Representative For The Estat Vehicule tout-terrain

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT524U1 (de) * 1994-03-21 1995-12-27 Straub Manfred Absenkbares fahrgestell, insbesondere fuer anhaenger
EP1389164A2 (fr) * 2001-05-23 2004-02-18 Bryan P. Prucher Moteur dans un systeme d'entrainement electrique des roues
EP1389164A4 (fr) * 2001-05-24 2004-09-08 Bryan P Prucher Moteur dans un systeme d'entrainement electrique des roues
EP1338495A3 (fr) * 2002-02-26 2003-11-05 Turner Development Limited Hachoir, broyeur à bois sur chenille ou hachoir et broyeur combinés sur chenille
EP1977961A2 (fr) * 2002-02-26 2008-10-08 Turner Development Limited Hachoir, broyeur à bois sur chenille ou hachoir et broyeur combinés sur chenille
DE20321649U1 (de) 2002-02-26 2008-10-23 Turner Development Ltd., Alcester Kettengetriebener Holzhäcksler, Schredder oder Häcksler/Schredderkombination
EP1977961A3 (fr) * 2002-02-26 2009-04-15 Turner Development Limited Hachoir, broyeur à bois sur chenille ou hachoir et broyeur combinés sur chenille
WO2005090158A1 (fr) * 2004-03-19 2005-09-29 Falck Schmidt Defence Systems A/S Vehicule automoteur
EP1632132A2 (fr) 2004-09-06 2006-03-08 Turner Development Limited Hachoir à bois sur chenille
EP1632132A3 (fr) * 2004-09-06 2006-06-07 Turner Development Limited Hachoir à bois sur chenille
GB2433236A (en) * 2005-12-16 2007-06-20 Lotus Car Motorcycle with a wheelbase variation mechanism
GB2433236B (en) * 2005-12-16 2007-11-07 Lotus Car A motorcycle having a vehicle wheelbase variation mechanism
US7543671B2 (en) * 2007-07-02 2009-06-09 Genie Industries, Inc. Vehicle with variable-length wheelbase
WO2010091460A1 (fr) * 2009-02-10 2010-08-19 James William Tunnecliff Dispositif à roues à différents modes de fonctionnement
DE102012019491A1 (de) * 2012-10-04 2014-04-10 Liebherr-Hydraulikbagger Gmbh Vorrichtung zur Verlagerung des Schwerpunkts einer Baumaschine
DE102012019491B4 (de) * 2012-10-04 2014-11-06 Liebherr-Hydraulikbagger Gmbh Vorrichtung zur Verlagerung des Schwerpunkts einer Baumaschine
DE202014104043U1 (de) 2014-08-28 2015-12-06 Jensen Gmbh Holzzerkleinerer zum Einsatz an Böschungen
DE102015114241A1 (de) 2014-08-28 2016-03-03 Jensen Gmbh Holzzerkleinerer zum Einsatz an Böschungen
DE102015114241B4 (de) 2014-08-28 2019-09-05 Jensen Gmbh Holzzerkleinerer zum Einsatz an Böschungen
FR3049562A1 (fr) * 2016-03-29 2017-10-06 Soc D'innovations Tech Et Ind Avancees Par Abreviation S I T I A Engin roulant automoteur, notamment pour des travaux d'agriculture
EP3670309A1 (fr) 2018-12-21 2020-06-24 Hornberje Holding AB Véhicule forestier
CN111806177A (zh) * 2020-06-03 2020-10-23 中国北方车辆研究所 一种具有伸缩摇臂悬架的四轮车越障控制方法
CN111806178A (zh) * 2020-06-03 2020-10-23 中国北方车辆研究所 一种具有伸缩摇臂悬架的四轮车越壕控制方法
CN111806178B (zh) * 2020-06-03 2022-01-11 中国北方车辆研究所 一种具有伸缩摇臂悬架的四轮车越壕控制方法

Also Published As

Publication number Publication date
SE467966B (sv) 1992-10-12
SE9003900L (sv) 1992-06-08
SE9003900D0 (sv) 1990-12-07

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