WO2010020607A1 - Suspension for an agricultural machine - Google Patents
Suspension for an agricultural machine Download PDFInfo
- Publication number
- WO2010020607A1 WO2010020607A1 PCT/EP2009/060606 EP2009060606W WO2010020607A1 WO 2010020607 A1 WO2010020607 A1 WO 2010020607A1 EP 2009060606 W EP2009060606 W EP 2009060606W WO 2010020607 A1 WO2010020607 A1 WO 2010020607A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- chassis
- wheel
- application machine
- agricultural application
- machine according
- Prior art date
Links
- 239000000725 suspension Substances 0.000 title claims abstract description 26
- 230000033001 locomotion Effects 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 5
- 230000004044 response Effects 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 description 6
- 239000011344 liquid material Substances 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 239000000417 fungicide Substances 0.000 description 2
- 239000004009 herbicide Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 240000008042 Zea mays Species 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G3/00—Resilient suspensions for a single wheel
- B60G3/18—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram
- B60G3/20—Resilient suspensions for a single wheel with two or more pivoted arms, e.g. parallelogram all arms being rigid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G17/00—Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
- B60G17/06—Characteristics of dampers, e.g. mechanical dampers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2200/00—Indexing codes relating to suspension types
- B60G2200/10—Independent suspensions
- B60G2200/14—Independent suspensions with lateral arms
- B60G2200/144—Independent suspensions with lateral arms with two lateral arms forming a parallelogram
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/08—Agricultural vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2300/00—Indexing codes relating to the type of vehicle
- B60G2300/40—Variable track or wheelbase vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G2500/00—Indexing codes relating to the regulated action or device
- B60G2500/30—Height or ground clearance
Definitions
- the invention relates to an agricultural application machine such as a self-propelled crop sprayer having single wheel suspension wherein each wheel has an associated wheel carrier mounted to a chassis by the suspension.
- Agricultural application machines such as crop sprayers comprise a large volume tank carried on a chassis. Such machines can be trailed behind a tractor or provided as a self-propelled unit having an integral cab and engine.
- the machine further comprises an extending boom which provides a transverse line of uniformly spaced spray nozzles connected by pipes to the tank.
- the application machine is moved across fields of crops such as cereals and maize to apply liquid fertilizer or chemical treatment such as herbicides, fungicides and pesticides to the crop in a controlled manner.
- the centre of gravity of the vehicle When fully laden the centre of gravity of the vehicle is primarily determined by the positioning of the tank on the vehicle. The operation over steep inclines dictates that the centre of gravity should be as low as possible so as to increase stability and reduce the risk of overturning of the vehicle.
- crops being treated often exceed one meter in height, particularly during the latter stages of the growth cycle and thus a machine having a profile with low ground clearance increases the risk of crop damage. It is thus desirable to provide an application machine having a variable ground clearance so that the centre of gravity can be kept as low as possible with the provision to raise the machine to avoid causing damage to the high crop over which the machine operates.
- an agricultural application machine comprising at least a pair of transversely spaced wheels which each have an associated wheel carrier mounted to a chassis by variable height suspension means, each suspension means comprising an upper arm and a lower arm of unequal length, each arm being connected between the chassis and the wheel carrier at respective pivotal joints forming a four-bar linkage arrangement which allows movement of the arms and the carrier in a plane which is substantially vertical and transverse to the longitudinal axis of the machine, the height of the chassis above the ground being adjustable over a range, wherein the separation between the base of the wheels remains substantially constant over said range.
- the invention involves the recognition that a variance in the ground clearance of a conventional application machine is often accompanied by a change in the wheel track, that is the distance between opposite wheels within a pair.
- An application machine usually operates over tramlines within a crop field wherein the same footprint is driven on by the machine wheels a number of times for multiple applications throughout the growing cycle. This minimizes the area of the field which cannot be used for growing a profitable crop and is a well established method of farming.
- the ground clearance of the machine can be varied over a large range without any significant change in the wheel track. This permits the same application machine to be employed over the same tramlines throughout the growing season and operable at a variable height to minimize the height of the centre of gravity.
- the wheel carrier can be mounted to the chassis either directly or indirectly.
- the wheel carrier and arms may be connected to a support structure which is itself mounted to the chassis in a manner which still allows the suspension means to vary the height of the chassis relative to the ground level upon which the wheels rest.
- the upper arm and lower arm of the four bar linkage arrangement have a mutually unequal length which is chosen to minimize the variance in the transverse distance between the wheel base and the chassis of the machine. Therefore said transverse distance remains substantially constant over the range of heights, varying by no more than say 10mm over an example range wherein at least one of the upper and lower arms pivots between 20° below horizontal to 20° above horizontal.
- the machine further comprises for each wheel a respective height adjustment actuator connected between a point fixed relative to the chassis and one of the upper and lower arms, wherein the length of the actuator is varied to adjust the height of the chassis above the ground.
- the actuator may take the form of a hydraulic or pneumatic cylinder wherein the operation thereof controls the movement of the four bar linkage relative to the chassis and thus the ground clearance height of the vehicle. This provision of fluid- operated cylinders allows the height of the machine to be changed at any point during operation by appropriate application of a hydraulic or pneumatic signal.
- the fluid controlled cylinders may also serve as suspension dampers to maintain the height of the chassis above the ground at a desired level during operation. By closing the valves connected to the cylinders thus forming a closed system the variation in height around the preset level is limited and damped.
- At least one of the upper and lower arms is preferably H-shaped having a pair of pivot joints at each end thus providing sturdy support for the wheel carriers.
- variable height suspension means for each wheel are mounted to a respective wheel support structure which is mounted to the chassis in a manner which allows the transverse distance between the wheel support structure and the chassis to be varied. Therefore, the track width of the wheels can be varied as required.
- Figure 1 is a perspective view of a self-propelled agricultural sprayer
- Figure 2 is a side view of the sprayer of Figure 1 ;
- Figure 3 is a perspective view of variable height suspension means, wheel carrier and wheel support structure for a pair of wheels of the sprayer of Figure 1 and in accordance with an embodiment of the invention
- FIG. 4 is another perspective view of the variable height suspension means of Figure
- Figure 5 is a perspective view of the variable height suspension means of Figure 4 shown with one wheel attached;
- Figure 6 is a perspective view of the variable height suspension means, wheel carrier and wheel support structure for one wheel of Figure 3;
- Figure 7 is a rear elevation view of the variable height suspension means, wheel carrier and wheel support structure of Figure 6;
- Figure 8 is a plan view of the variable height suspension means, wheel carrier and wheel support structure of Figure 6;
- Figure 9 is a plan view of an upper arm forming part of variable height suspension means in accordance with the invention.
- FIG 10 is a perspective view of the chassis of the sprayer of Figure 1 ;
- Figure 11 is a perspective view of the rear part of the underside of the sprayer of Figure
- Figure 12 is an underside view of the sprayer of Figure 1;
- Figures 13a to e show the arm arrangement of Figure 6 (shown with wheel attached) at different ground clearance heights in accordance with the invention
- a self-propelled arable crop sprayer 10 comprises a pair of front wheels 12 and pair of rear wheels 14 each wheel being separately mounted to a chassis 100 by respective variable height suspension means.
- the sprayer 10 further comprises a tank 15, a boom assembly 16 and driver's cab 17.
- the tank 15 accounts for the majority of the sprayer's volume and serves to hold the liquid material which is to be applied to a field.
- the liquid material may comprise fertilizer or other chemical treatment such as herbicides, fungicides, pesticides or growth restrictors.
- the liquid material is delivered in a controlled manner to spray nozzles (not shown) located on the boom assembly 16 by a network of supply pipes (not shown).
- the boom assembly 16 In the transport mode (shown in Figures 1 and 2) the boom assembly 16 is retracted so as to remain substantially within the profile of the vehicle body thus allowing safe movement on the highway.
- the boom assembly 16 In an operating mode the boom assembly 16 is extended so as to provide a transversely extending boom, having a width of 24 meters for example. Driven across an arable field, the liquid material is sprayed onto the crop in strips 24 meters wide at a time.
- the driver located in cab 17 controls the steering of the sprayer and the control of the liquid material application. It should be understood that Figures 1 and 2 show only one half (right-hand side) of the folded boom assembly 16.
- the weight of a fully laden tank 15 accounts for a significant proportion of the overall vehicle weight. Therefore, the centre of mass of the sprayer 10 is located within the volume of the tank 15 as referenced at M in Figure 2. To maximize the stability of the sprayer 10 it is desirable to minimize the height of the centre of mass M above the ground. The requirement to avoid crop damage caused by the underside of the sprayer 10 dictates that the chassis 100 should be raised at least during operation on the field. Therefore variable height suspension means are provided to adjust the ground clearance of the underside of the sprayer 10.
- each wheel 12, 14 has an associated wheel carrier 18 comprising a carrier element 19 and a wheel hub 20 rotatably mounted to the carrier element 19.
- the associated wheel 12 (Fig. 5) is bolted to the respective wheel hub 20, rotation of which is driven by a hydrostatic motor 21 which is mounted to the respective carrier element 19.
- Each wheel carrier 18 is mounted to a respective wheel support structure 22 by an upper arm 23 and a lower arm 24, altogether forming a unit termed hereinafter a 'corner module'.
- the wheel support structure 22 for each corner module is a cast unit which is, in this embodiment, attached to the chassis 100 by a track varying mechanism which allows the track width, that is the distance between wheels within a respective pair, to be changed.
- the track varying mechanism will be described in more detail below.
- a mechanism to provide variable track width is not necessary and that the wheel carriers 18 can be suspended directly from the chassis 100 without deviating from the scope of the invention.
- an application machine having such fixed track width particularly benefits from the invention because of the variable height provided accompanied with minimal track variance.
- the wheel support structure 22 is mounted so as to maintain a constant height relative to the chassis 100.
- each carrier element 19 is pivotally mounted to an upright king pin 27 which forms part of the wheel carrier 18 as shown in Figure 6.
- a steering lever 28 is pivotally connected to the steering lever 28.
- the other end of the steering cylinder 29 is secured relative to the wheel carrier 18. Pressurise fluid supplied to each of the steering cylinders 29 controls the steering of the associated wheel.
- each of the upper arm 23 ( Figure 9) and lower arm 24 have an H- shaped construction having a pair of transverse extensions 23 a connected by a longitudinally (relative to the normal direction of vehicle travel) extending tie 23b.
- Each arm 23, 24 is pivotally connected to the wheel support structure 22 by a respective pair of pivotal joints 30 which allow pivotal movement of the arms about a longitudinal axis, Xl, X2 ( Figure 6).
- Each joint 30 comprises a pin 30a which retains the associated arm extension 23a between a respective pair of jaw elements 30b provided by the associated wheel support structure.
- each arm 23 At the opposite (outside) end of each arm 23, 24 a respective pair of pivotal joints 31 connect each arm to the wheel carrier 18.
- the outer joints 31 for each arm In the embodiment shown, the outer joints 31 for each arm
- wheel carrier 18 and wheel support structure 22 connected at the respective pivoting joints 30, 31 provide a four-bar linkage arrangement which allows movement of the arms 23,24 and the carrier 18 in a plane which is substantially vertical and transverse to the longitudinal axis of the machine 10.
- the ground clearance of the chassis can be adjusted over a large range.
- the unequal lengths of the upper and lower arms 23,24 are chosen to minimize the variation in transverse separation between the base of the wheel and the chassis as discussed in more detail below.
- a hydraulic cylinder 40 is provided for each of the suspension units to adjust the height of each wheel 12, 14 relative to the chassis 100.
- a first upper end 40a of each hydraulic cylinder 40 is fixed relative to the associated wheel support structure 22 by means of a pivoting link supported on a pin 41. In this case, the upper end 40a is fixed relative to the associated wheel support structure 22 by an appropriate attachment point 101 on the chassis 100.
- a second lower end 40b of each cylinder 40 is pivotally connected to the associated lower arm 24 by a joint 42.
- Each cylinder 40 has connected thereto fluid pipes 40c which deliver a supply of oil to the cylinder chambers so as to control movement of the piston located therein.
- a pair of accumulators 43 are provided for each cylinder 40 to provide a spring function which damps vibrations transmitted from the wheels to improve the comfort for the driver and reduce the effect of the vibrations on the boom assembly 16.
- the four-bar linkage arrangement attached thereto is moved thus adjusting the height of the chassis 100 above the ground.
- the cylinder 40 controls movement of the four bar linkage over the entire range of available heights from a fully raised position to a fully lowered position.
- each wheel carrier is raised and lowered as a single unit. Therefore, the carrier element 19, king pin 27 and steering cylinder 29 move up and down in unison.
- the hydraulic cylinder 40 is shown in a fully retracted state corresponding to a minimum length.
- the upper and lower arms 23,24 are in a fully raised state corresponding to a fully lowered state (minimum ground clearance) of the sprayer chassis 100.
- the four-bar mechanism delivers minimal transverse movement thus keeping the track width substantially constant (within 10 mm) over the range of possible ground clearance settings.
- Figure 12a is suitable for use during transport of the sprayer, on highways for example, wherein the centre of mass M is at it lowest possible height thus providing maximized stability of the vehicle.
- Figure 12c is employed when operating over high crops which are susceptible to damage from an underside of a sprayer.
- the use of hydraulic cylinders 40 for each corner module not only allows the operator to vary the overall height of the sprayer 10 but allows the chassis 100 to be levelled when operated on a side bank for example by appropriate lowering of the downhill side wheel carrier.
- the operator of the sprayer 10 can set the ground clearance of the chassis 100 manually from a preset choice of heights, it is envisaged that the height may be set over a continuous range and which may be controllable by a simple lever in the cab 17 connected to a spool valve. Furthermore, raising and lowering of the chassis 100 above the ground may be automated in conjunction with ground clearance sensors located on the underside of the vehicle wherein the height is automatically increased when an increase in crop height is detected. This is particularly advantageous when the height of the crop varies across the working area.
- each wheel support structure 22 includes a pair of bearing blocks 50 which are cast into the unit.
- Each bearing block 50 comprises a transversely extending bush-lined sleeve 52 which receives a respective transversely extending shaft 54 which is secured by a series of brackets 102 bolted to the underside of the chassis 100 ( Figure 11).
- Each wheel support structure 22 is slidably mounted on a pair of transversely extending shafts 54 so that the wheel track of the vehicle can be varied as required.
- each pair of wheels 12, 14 shares a pair of mounting shafts 54.
- each pair of wheels has associated therewith a pair of hydraulic actuators 56.
- the actuators are each connected between mounting pins 57 provided on transversely opposing wheel support structures 22, one disposed forwardly of the front-most shaft 54 and the other disposed rearwardly of the rear-most shaft 54.
- Each actuator 56 comprises a piston (not shown) slidably contained within a cylinder 56a.
- a piston rod 56b is connected to the piston.
- the two actuators 56 associated with a given pair of wheels are mechanically connected in an opposing parallel relationship wherein the piston rod 56b of one actuator is connected to the left-hand wheel support structure 22 and the piston rod 56b or the other actuator is connected to the right-hand wheel support structure 22.
- Pressurised fluid is supplied to the actuators 56 so as to control the separation of the wheel support structures 22 and thus the track width of the vehicle. It may be necessary to ensure the vehicle is moving in order to effect smooth adjustment of the track width without subjecting the corner modules to unnecessary transverse strain.
- the pivoting range of the lower arm 24 in the above-described embodiment is from 20° below horizontal to 20° above horizontal. However, it is envisaged that this range may be greater or smaller as required.
- the adjustment of the vehicle's ground clearance has been effected by operation of a set of hydraulic cylinders in response to applied hydraulic signals.
- the height adjustment of the chassis relative to the wheel carriers may be carried out manually, perhaps by jacking up the chassis and releasing/replacing locking pins.
- each of the upper arms 23 and lower arms 24 are H- shaped to deliver a sturdy support for each wheel.
- one or both arms may take a different form, say wishbone shaped having a single universal joint to the wheel carrier to allow for a steering movement.
- an agricultural application machine comprising at least a pair of transversely spaced wheels.
- Each wheel has an associated wheel carrier mounted to a chassis by variable height suspension means to allow the ground clearance of the chassis underside to be adjusted.
- Each suspension means comprises an upper arm and a lower arm of unequal length, wherein each arm is connected between the chassis and the wheel carrier at respective pivotal joints thereby forming a four-bar linkage arrangement.
- the geometry of the arms and their pivotal mountings allows movement of the carrier in a plane which is substantially vertical and transverse to the longitudinal axis of the machine whilst the wheel track remains substantially constant over the range of possible heights.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
- Catching Or Destruction (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1103725.6A GB2474812B (en) | 2008-08-22 | 2009-08-17 | Agricultural application machine with single wheel suspension |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0815301.7A GB0815301D0 (en) | 2008-08-22 | 2008-08-22 | Agricultural application machine with single wheel suspension |
GB0815301.7 | 2008-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2010020607A1 true WO2010020607A1 (en) | 2010-02-25 |
Family
ID=39812400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2009/060606 WO2010020607A1 (en) | 2008-08-22 | 2009-08-17 | Suspension for an agricultural machine |
Country Status (2)
Country | Link |
---|---|
GB (2) | GB0815301D0 (en) |
WO (1) | WO2010020607A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2248690A3 (en) * | 2009-05-08 | 2012-05-02 | Herbert Dammann GmbH | Frame for special vehicles |
US8534686B1 (en) | 2010-12-30 | 2013-09-17 | Agco Corporation | Independent strut suspension |
WO2016058060A1 (en) * | 2014-10-14 | 2016-04-21 | Reybrouck Consulting & Innovation Bvba | Wheel suspension |
DE102017111779A1 (en) | 2017-05-30 | 2018-12-06 | Horsch Leeb Application Systems Gmbh | Independent wheel suspension for a steerable wheel |
US10245915B2 (en) | 2017-03-30 | 2019-04-02 | Cnh Industrial America Llc | Task-specific ride-height and speed control of an agricultural product applicator with air strut suspension |
EP3647083A1 (en) * | 2018-10-29 | 2020-05-06 | HORSCH LEEB Application Systems GmbH | Independent wheel suspension for a sprung, steerable wheel |
EP3792086A1 (en) * | 2019-09-11 | 2021-03-17 | Super ATV, LLC | Rear end steering and mounting system |
EP3895918A1 (en) | 2020-04-17 | 2021-10-20 | Amazonen-Werke H. Dreyer SE & Co. KG | Axle assembly with adjustable track width |
WO2022043781A1 (en) * | 2020-08-25 | 2022-03-03 | Agco Corporation | System and method for adjusting the chassis height of a machine |
US12043321B2 (en) | 2020-08-25 | 2024-07-23 | Agco Corporation | System and method for adjusting the chassis height of a machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10556476B2 (en) * | 2014-04-09 | 2020-02-11 | Hagie Manufacturing Company | Agricultural vehicle including ride height adjustable suspension |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2901051A (en) * | 1954-04-30 | 1959-08-25 | John L Thibodeau | Tractor drive and suspension mechanism |
US4186815A (en) * | 1977-12-27 | 1980-02-05 | Caterpillar Tractor Co. | Suspension and drive for tandem wheel vehicle |
WO1989000928A1 (en) * | 1987-07-24 | 1989-02-09 | Karlin, Gunvor (Legal Representative For The Estat | Cross-country vehicle |
US5039129A (en) * | 1989-11-15 | 1991-08-13 | Charles Balmer | Vehicle for agricultural use |
US5755382A (en) * | 1995-08-14 | 1998-05-26 | Skotinkov; Andrey V. | Self-propelled sprayer |
WO1999042311A2 (en) * | 1998-02-23 | 1999-08-26 | General Dynamics Land Systems, Inc. | Adjustable vehicle suspension |
US6406043B1 (en) * | 1998-01-29 | 2002-06-18 | Charles Balmer | Suspension and steering system for a vehicle |
US20060170176A1 (en) * | 2005-01-28 | 2006-08-03 | Wubben Thomas M | High clearance vehicle suspension with twin spindles for transferring steering torque |
-
2008
- 2008-08-22 GB GBGB0815301.7A patent/GB0815301D0/en not_active Ceased
-
2009
- 2009-08-17 GB GB1103725.6A patent/GB2474812B/en active Active
- 2009-08-17 WO PCT/EP2009/060606 patent/WO2010020607A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2901051A (en) * | 1954-04-30 | 1959-08-25 | John L Thibodeau | Tractor drive and suspension mechanism |
US4186815A (en) * | 1977-12-27 | 1980-02-05 | Caterpillar Tractor Co. | Suspension and drive for tandem wheel vehicle |
WO1989000928A1 (en) * | 1987-07-24 | 1989-02-09 | Karlin, Gunvor (Legal Representative For The Estat | Cross-country vehicle |
US5039129A (en) * | 1989-11-15 | 1991-08-13 | Charles Balmer | Vehicle for agricultural use |
US5755382A (en) * | 1995-08-14 | 1998-05-26 | Skotinkov; Andrey V. | Self-propelled sprayer |
US6406043B1 (en) * | 1998-01-29 | 2002-06-18 | Charles Balmer | Suspension and steering system for a vehicle |
WO1999042311A2 (en) * | 1998-02-23 | 1999-08-26 | General Dynamics Land Systems, Inc. | Adjustable vehicle suspension |
US20060170176A1 (en) * | 2005-01-28 | 2006-08-03 | Wubben Thomas M | High clearance vehicle suspension with twin spindles for transferring steering torque |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2248690A3 (en) * | 2009-05-08 | 2012-05-02 | Herbert Dammann GmbH | Frame for special vehicles |
US8534686B1 (en) | 2010-12-30 | 2013-09-17 | Agco Corporation | Independent strut suspension |
US10518600B2 (en) | 2014-10-14 | 2019-12-31 | Reybrouck Consulting & Innovation Bvba | Wheel suspension |
BE1022561B1 (en) * | 2014-10-14 | 2016-06-02 | Reybrouck Consulting & Innovation Bvba | Wheel suspension |
WO2016058060A1 (en) * | 2014-10-14 | 2016-04-21 | Reybrouck Consulting & Innovation Bvba | Wheel suspension |
US10245915B2 (en) | 2017-03-30 | 2019-04-02 | Cnh Industrial America Llc | Task-specific ride-height and speed control of an agricultural product applicator with air strut suspension |
DE102017111779A1 (en) | 2017-05-30 | 2018-12-06 | Horsch Leeb Application Systems Gmbh | Independent wheel suspension for a steerable wheel |
EP3647083A1 (en) * | 2018-10-29 | 2020-05-06 | HORSCH LEEB Application Systems GmbH | Independent wheel suspension for a sprung, steerable wheel |
EP3792086A1 (en) * | 2019-09-11 | 2021-03-17 | Super ATV, LLC | Rear end steering and mounting system |
EP3895918A1 (en) | 2020-04-17 | 2021-10-20 | Amazonen-Werke H. Dreyer SE & Co. KG | Axle assembly with adjustable track width |
DE102020110479A1 (en) | 2020-04-17 | 2021-10-21 | Amazonen-Werke H. Dreyer SE & Co. KG | Axle assembly with adjustable track width |
WO2022043781A1 (en) * | 2020-08-25 | 2022-03-03 | Agco Corporation | System and method for adjusting the chassis height of a machine |
US12043321B2 (en) | 2020-08-25 | 2024-07-23 | Agco Corporation | System and method for adjusting the chassis height of a machine |
Also Published As
Publication number | Publication date |
---|---|
GB0815301D0 (en) | 2008-09-24 |
GB201103725D0 (en) | 2011-04-20 |
GB2474812B (en) | 2012-08-29 |
GB2474812A (en) | 2011-04-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP2328395B1 (en) | Agricultural application machine with variable width track | |
WO2010020607A1 (en) | Suspension for an agricultural machine | |
US9945443B2 (en) | Boom mounting assembly for an agricultural application machine | |
CA2570765C (en) | Suspension arrangement for a boom assembly mounted on an agricultural sprayer | |
US7395663B2 (en) | System for and method of locking a roll suspension arrangement for a boom assembly mounted on an agricultural sprayer | |
US5335856A (en) | Air boom sprayer trailer hitch and suspension | |
EP2317842B1 (en) | Self propelled agricultural application machine | |
US20070181710A1 (en) | Suspension arrangement for a boom lift assembly of an agricultural sprayer | |
CA2757092C (en) | Agricultural sprayer boom having aligned mast and center section | |
US7878422B2 (en) | Variable dampening rate suspension system | |
BR102018005731B1 (en) | SUSPENSION SYSTEM, SELF-PROPELLED AGRICULTURAL PRODUCT APPLICATOR AND METHOD FOR CONTROLLING THE HEIGHT OF A FRAME OF A SELF-PROPELLED AGRICULTURAL PRODUCT APPLICATOR ABOVE A GROUND SURFACE | |
US6745849B2 (en) | Towed implement | |
GB2311967A (en) | A variable-track, four wheel steering agricultural vehicle with active suspension | |
WO2019105651A1 (en) | Tractor-mounted agricultural crop sprayer | |
EP3576525B1 (en) | Sprayer boom suspension assembly | |
CA3001409C (en) | Stacking planter toolbar without four-bar linkage | |
CA3189067A1 (en) | System and method for adjusting the chassis height of a machine | |
WO2019105652A1 (en) | Tractor-mounted agricultural crop sprayer | |
AU2021458229A1 (en) | Agricultural machine and agricultural machine combination |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09781897 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 1103725 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20090817 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1103725.6 Country of ref document: GB |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 09781897 Country of ref document: EP Kind code of ref document: A1 |