US20010054525A1 - Steering device, especially for farming tractors & similar commercial vehicles - Google Patents
Steering device, especially for farming tractors & similar commercial vehicles Download PDFInfo
- Publication number
- US20010054525A1 US20010054525A1 US09/854,742 US85474201A US2001054525A1 US 20010054525 A1 US20010054525 A1 US 20010054525A1 US 85474201 A US85474201 A US 85474201A US 2001054525 A1 US2001054525 A1 US 2001054525A1
- Authority
- US
- United States
- Prior art keywords
- steering
- axle
- cylinder
- gear
- steering device
- 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.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/003—Steerable axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/12—Torque-transmitting axles
- B60B35/16—Axle housings
- B60B35/163—Axle housings characterised by specific shape of the housing, e.g. adaptations to give space for other vehicle elements like chassis or exhaust system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
- B62D5/10—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle characterised by type of power unit
- B62D5/12—Piston and cylinder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/08—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle
- B62D7/12—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in a single plane transverse to the longitudinal centre line of the vehicle with twin-output steering gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D9/00—Steering deflectable wheels not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/22—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/20—Off-Road Vehicles
- B60Y2200/22—Agricultural vehicles
- B60Y2200/221—Tractors
Definitions
- the invention relates to a steering device, especially for agricultural tractors and similar commercial vehicles having a rigid steering axle movable in a pendulum fashion around a pendulum pin, the pendulum pin being arranged in line with the longitudinal central axis of the tractor, the wheels of which are driven by a cardan shaft arranged between the steering axle and the transmission the transmission being located with distance behind the steering axle, comprising a power steering gear having a pinion, which is connected with the steering linkage of the steering axle, and comprising a steering cylinder being an integral part of the steering linkage, the steering cylinder being actuatable by fluid under pressure supplied by the power steering gear.
- Farming tractors having a construction for a maximum speed below the limit described above at present are designed including pure hydraulic steering devices.
- the reason for this was the fact that there was not enough room to arrange a mechanical steering device as used before extending from the steering wheel to the steering axle being positioned far in front of the steering wheel. The only solution was to use the room beside the driving engine above the steering axle. However, this arrangement greatly limits the possible angle of the steering action.
- Hydraulic steering devices include a power steering gear operated by the steering wheel supplying hydraulic liquid under pressure to the power steering cylinder.
- the power steering cylinder as known from DE-AS 1 21 724, is arranged parallel to the body of the steering axle and connected with the steering linkage of the steering axle. This arrangement, particularly in view of the large dimensions of the steering cylinder, require substantial room for its positioning. This hinders the construction as far as the room is needed to position other essential elements of the tractor such as the front power take-off shaft, power lift elements, axle suspension elements for example.
- the invention allows the piston rod to serve two purposes.
- the piston rod serves to transmit the power force generated by the hydraulic fluid acting on the piston to the steering linkage of the steering axle.
- Futhermore there is more room to be used to position other essential elements as the front power take-off shaft, power lift elements, axle suspension elements in the region of the steering axle and, sensitive parts of the steering cylinder as the piston rod and the conduits are positioned in the interior and thus protected against damage.
- the features of claim 9 can be used on vehicles including a cardan shaft for driving the front wheels.
- the cardan shaft being positioned in the interior of piston rod is protected from damage and dirt.
- a very simple design of the steering device is subject of claim 10 .
- the power steering gear according the features of claim 11 allows the steering device to have substantially shortened conduits.
- FIG. 1 is a schematic side view of a farming tractor with a steering axle having a steering device.
- FIG. 2 is a top view of the steering device of FIG. 1 adapted to a steering axle having a split track rod.
- FIG. 3 is a top view of a steering device adapted to a steering axle having two track rods.
- the agricultural tractor illustrated in FIG. 1 includes a housing 1 and a transmission 2 arranged therein.
- the transmission 2 contains a infinitely variable change-speed gear driving the rear wheels 3 and the front wheels 5 via an all wheel drive clutch arranged in the housing 1 and via a cardan shaft 4 .
- Two frames 6 are connected with the housing 1 and extend longitudinally in the direction to the front of the tractor.
- the frames 6 carry the driving motor 7 of the tractor.
- Bearings 8 are located in the region of the frames 6 directed to the rear.
- the bearings 8 serve to carry a swinging arm arrangement 9 extending to the front.
- the swinging arm arrangement 9 has two swinging arms spaced apart laterally and connected to each other towards the front of the tractor.
- the swinging arms are arranged in alignment with the joint 4 a of the cardan shaft 4 .
- Pendulum pins 10 and 11 of the axle 12 are supported on the front part of the swinging arm arrangement 9 .
- the swinging arm arrangement 9 includes elastic elements (not shown) and serves to buffer shocks from the steering axle 12 to the frames 6 .
- a cabin 13 including a steering wheel 14 is positioned behind the driving motor 7 being located on the housing 1 .
- the cardan shaft 4 is in driving connection with a differential gear 16 arranged in the middle of a body 15 of the steering axle 12 .
- Two front half axle shafts 17 and 18 extend from the differential gear 16 to the hubs 9 and 20 respectively, which carry the front wheels 5 .
- the front wheels 5 can be pivoted by a steering device to change the driving direction of the tractor.
- the steering device includes a steering cylinder 21 having two chambers with the same cross section, a power steering gear 22 , the steering wheel 14 , and a steering shaft 23 connecting the steering wheel 14 with the power steering gear 22 .
- Both the steering cylinder 21 and the cardan shaft 4 extend along the longitudinal axis of the tractor.
- the steering cylinder 21 and the cardan shaft 4 are positioned between the housing 1 of the transmission 2 and the steering axle 12 .
- the pendulum pin 1 has a projection 11 a carrying a tube-like extension piece 24 fixed thereon.
- the steering cylinder 21 is connected to the steering axle 12 by this extension piece 24 .
- the steering wheel 14 supplies liquid under pressure from the power steering gear 22 via the conduits 25 or 26 respectively to the steering cylinder 21 .
- the power steering gear 22 can be positioned in the interior of a tank containing the hydraulic liquid and being part of the housing 1 .
- the conduits have a short length and are arranged under protection of the tank and the housing respectively.
- a piston 27 is located in the steering cylinder 21 between the inlets of the conduits 25 and 26 .
- the piston 27 includes a piston rod or piston rods 28 on both sides of the piston.
- the piston rod 28 has an axial bore 28 a through which the cardan shaft 4 extends from the housing 1 to the differential gear 17 .
- the end region of the piston rod 28 towards the housing 1 is provided with a toothed rack 29 .
- a pinion 30 of the power steering gear 22 meshes with the toothed rack 29 .
- the power steering gear 22 is arranged on the steering cylinder 21 in order to facilitate co-operation between the pinion 30 of the power steering gear 22 with the toothed rack 29 of the piston rod 28 independent from any movements of the steering cylinder 21 .
- the steering shaft 23 is designed telescopely with variable length to make relative movements of the power steering gear 22 with respect to the steering wheel 14 possible due to spring and pendulum movements of the steering axle 12 .
- the power steering gear 22 and the steering cylinder 21 are supported by a bearing 31 on the cardan shaft 4 .
- the end part of the piston rod 28 facing the steering axle 12 extends into the extension piece 24 and includes a projection piece 32 having two fingers 33 , 34 being arranged with respect of 180° to each other and being guided in a longitudinal groove (not shown) of the projection 11 a of the pendulum pin 11 .
- the finger 33 includes a toothed piece 35 .
- a pinion 36 is located in the extension piece 24 and meshes with the toothed piece 35 .
- the pinion 36 is connected with a lever 37 .
- the free ends of the lever 37 are connected with two track rods 38 and 39 which are jointly connected with the two track rod levers 40 and 41 respectively of the steering axle 12 .
- FIG. 3 differs from the embodiment of FIG. 2 only in the fact that the finger 34 is provided with a toothed piece 42 .
- the toothed piece 42 meshes with a pinion 43 located on the extension piece 24 .
- Each pinion 36 , 43 is connected with a lever 44 and 45 respectively, to which track rods 46 and 47 are connected being jointly connected with the track rod levers 40 and 41 respectively.
Abstract
Description
- The invention relates to a steering device, especially for agricultural tractors and similar commercial vehicles having a rigid steering axle movable in a pendulum fashion around a pendulum pin, the pendulum pin being arranged in line with the longitudinal central axis of the tractor, the wheels of which are driven by a cardan shaft arranged between the steering axle and the transmission the transmission being located with distance behind the steering axle, comprising a power steering gear having a pinion, which is connected with the steering linkage of the steering axle, and comprising a steering cylinder being an integral part of the steering linkage, the steering cylinder being actuatable by fluid under pressure supplied by the power steering gear.
- Commercial vehicles having a construction to allow a maximum speed of more than 62 km/h have to have steering devices including a mechanical connection throughout from the steering wheel to the directed wheels. Such a steering device known from DE-AS 12 88 930 is hydraulically power assisted but can be controlled in emergency steering using increased steering forces when the power steering fails.
- Farming tractors having a construction for a maximum speed below the limit described above at present are designed including pure hydraulic steering devices. The reason for this was the fact that there was not enough room to arrange a mechanical steering device as used before extending from the steering wheel to the steering axle being positioned far in front of the steering wheel. The only solution was to use the room beside the driving engine above the steering axle. However, this arrangement greatly limits the possible angle of the steering action. Hydraulic steering devices include a power steering gear operated by the steering wheel supplying hydraulic liquid under pressure to the power steering cylinder. The power steering cylinder, as known from DE-AS 1 21 724, is arranged parallel to the body of the steering axle and connected with the steering linkage of the steering axle. This arrangement, particularly in view of the large dimensions of the steering cylinder, require substantial room for its positioning. This hinders the construction as far as the room is needed to position other essential elements of the tractor such as the front power take-off shaft, power lift elements, axle suspension elements for example.
- It is the object of the invention to provide a steering device being adapted to farming tractors and other commercial vehicles having a construction to allow a maximum speed of more than 50 km/h.
- This is attained by the features of
patent claim 1. - Using a steering cylinder having two chambers with the same cross section and positioning it in a region between the steering axle and the transmission gives the possibility to use the space already housing the cardan shaft for driving the front wheels. Thus, this room is used for two purposes. Furthermore, the invention allows the piston rod to serve two purposes. First, the piston rod serves to transmit the power force generated by the hydraulic fluid acting on the piston to the steering linkage of the steering axle. Second, there always is a mechanical connection from the power steering gear to the steering linkage. Futhermore, there is more room to be used to position other essential elements as the front power take-off shaft, power lift elements, axle suspension elements in the region of the steering axle and, sensitive parts of the steering cylinder as the piston rod and the conduits are positioned in the interior and thus protected against damage.
- Design of the region around the steering wheel in the cabin is simpler and more economical, since the power steering gear no longer needs to be positioned in this region.
- The features of claim3 facilitate use of the invention on vehicles having a suspended steering axle.
- The subject of
claims 4 to 8 is a useful arrangement of the power steering cylinder being part of the steering linkage of the steering axle. - The features of
claim 9 can be used on vehicles including a cardan shaft for driving the front wheels. The cardan shaft being positioned in the interior of piston rod is protected from damage and dirt. - A very simple design of the steering device is subject of
claim 10. - The power steering gear according the features of
claim 11 allows the steering device to have substantially shortened conduits. - The invention can be better understood with reference to the following drawings. Advantageous details and characteristics of the invention are described in the following.
- FIG. 1 is a schematic side view of a farming tractor with a steering axle having a steering device.
- FIG. 2 is a top view of the steering device of FIG. 1 adapted to a steering axle having a split track rod.
- FIG. 3 is a top view of a steering device adapted to a steering axle having two track rods.
- The agricultural tractor illustrated in FIG. 1 includes a
housing 1 and atransmission 2 arranged therein. Thetransmission 2 contains a infinitely variable change-speed gear driving the rear wheels 3 and the front wheels 5 via an all wheel drive clutch arranged in thehousing 1 and via acardan shaft 4. Twoframes 6 are connected with thehousing 1 and extend longitudinally in the direction to the front of the tractor. Theframes 6 carry thedriving motor 7 of the tractor.Bearings 8 are located in the region of theframes 6 directed to the rear. Thebearings 8 serve to carry a swingingarm arrangement 9 extending to the front. The swingingarm arrangement 9 has two swinging arms spaced apart laterally and connected to each other towards the front of the tractor. The swinging arms are arranged in alignment with thejoint 4 a of thecardan shaft 4.Pendulum pins axle 12 are supported on the front part of the swingingarm arrangement 9. The swingingarm arrangement 9 includes elastic elements (not shown) and serves to buffer shocks from thesteering axle 12 to theframes 6. Acabin 13 including asteering wheel 14 is positioned behind the drivingmotor 7 being located on thehousing 1. - As illustrated in FIG. 2, the
cardan shaft 4 is in driving connection with adifferential gear 16 arranged in the middle of abody 15 of thesteering axle 12. Two fronthalf axle shafts differential gear 16 to thehubs - The front wheels5 can be pivoted by a steering device to change the driving direction of the tractor. The steering device includes a
steering cylinder 21 having two chambers with the same cross section, apower steering gear 22, thesteering wheel 14, and asteering shaft 23 connecting thesteering wheel 14 with thepower steering gear 22. - Both the
steering cylinder 21 and thecardan shaft 4 extend along the longitudinal axis of the tractor. Thesteering cylinder 21 and thecardan shaft 4 are positioned between thehousing 1 of thetransmission 2 and thesteering axle 12. Thependulum pin 1 has aprojection 11 a carrying a tube-like extension piece 24 fixed thereon. Thesteering cylinder 21 is connected to thesteering axle 12 by thisextension piece 24. - Turning the
steering wheel 14 supplies liquid under pressure from thepower steering gear 22 via theconduits steering cylinder 21. If the tractor has ahousing 1 extending extremely towards the front of the tractor, thepower steering gear 22 can be positioned in the interior of a tank containing the hydraulic liquid and being part of thehousing 1. Thus, the conduits have a short length and are arranged under protection of the tank and the housing respectively. - A
piston 27 is located in thesteering cylinder 21 between the inlets of theconduits piston 27 includes a piston rod orpiston rods 28 on both sides of the piston. Thepiston rod 28 has anaxial bore 28 a through which thecardan shaft 4 extends from thehousing 1 to thedifferential gear 17. - The end region of the
piston rod 28 towards thehousing 1 is provided with atoothed rack 29. Apinion 30 of thepower steering gear 22 meshes with thetoothed rack 29. Thepower steering gear 22 is arranged on thesteering cylinder 21 in order to facilitate co-operation between thepinion 30 of thepower steering gear 22 with thetoothed rack 29 of thepiston rod 28 independent from any movements of thesteering cylinder 21. Thesteering shaft 23 is designed telescopely with variable length to make relative movements of thepower steering gear 22 with respect to thesteering wheel 14 possible due to spring and pendulum movements of thesteering axle 12. Thepower steering gear 22 and thesteering cylinder 21 are supported by abearing 31 on thecardan shaft 4. - The end part of the
piston rod 28 facing the steeringaxle 12 extends into theextension piece 24 and includes aprojection piece 32 having twofingers projection 11 a of thependulum pin 11. Thefinger 33 includes atoothed piece 35. Apinion 36 is located in theextension piece 24 and meshes with thetoothed piece 35. Thepinion 36 is connected with alever 37. The free ends of thelever 37 are connected with twotrack rods axle 12. - Actuating the
steering wheel 14 turns theshaft 23, which drives thepower steering gear 22. Within thepower steering gear 22 the turning movement of the steeringshaft 23 is mechanically transferred to thepinion 30. Thepinion 30 displaces thepiston rod 28 by meshing with thetoothed rack 29 in a direction depending on the direction in which thesteering wheel 14 is turned. At the same time thepower steering gear 22 supplies power steering force by liquid under pressure via one of theconduits piston 27 and on thetoothed rack 29 also in the same direction as thepinion 30. This movement is transmitted from thepinion 36, to thelever 37 and further to thetrack rods hubs - The embodiment of FIG. 3 differs from the embodiment of FIG. 2 only in the fact that the
finger 34 is provided with atoothed piece 42. Thetoothed piece 42 meshes with apinion 43 located on theextension piece 24. Eachpinion lever track rods
Claims (14)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0015302.3 | 2000-06-23 | ||
GB0015302 | 2000-06-23 | ||
GB0015302A GB2363767B (en) | 2000-06-23 | 2000-06-23 | Steering device especially for farming tractors & similar commercial vehicles |
Publications (2)
Publication Number | Publication Date |
---|---|
US20010054525A1 true US20010054525A1 (en) | 2001-12-27 |
US6386310B2 US6386310B2 (en) | 2002-05-14 |
Family
ID=9894181
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/854,742 Expired - Fee Related US6386310B2 (en) | 2000-06-23 | 2001-05-14 | Steering device, especially for farming tractors and similar commercial vehicles |
Country Status (5)
Country | Link |
---|---|
US (1) | US6386310B2 (en) |
EP (1) | EP1167160B1 (en) |
AT (1) | ATE285353T1 (en) |
DE (1) | DE60107903T2 (en) |
GB (1) | GB2363767B (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9527536B1 (en) * | 2015-08-24 | 2016-12-27 | Deere & Company | Telescopic wheel hub |
AU2014233559B2 (en) * | 2013-09-24 | 2017-09-21 | Iveco S.P.A. | Steering system assembly for commercial vehicles and commercial vehicle comprising the steering system assembly |
CN109436086A (en) * | 2018-10-29 | 2019-03-08 | 苏州履坦智能科技有限公司 | A kind of multiple strand chain transmission wheel type vehicle steering mechanism |
CN110566664A (en) * | 2019-07-29 | 2019-12-13 | 李昶 | Shock attenuation variable speed steering mechanism |
US20220289290A1 (en) * | 2021-03-15 | 2022-09-15 | Oshkosh Corporation | Steering assembly for vehicle |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7367417B2 (en) * | 2003-04-02 | 2008-05-06 | Yamaha Hatsudoki Kabushiki Kaisha | Floor arrangement for off-road vehicle |
US7357211B2 (en) * | 2003-04-02 | 2008-04-15 | Yamaha Hatsudoki Kabushiki Kaisha | Steering system for off-road vehicle |
US7287619B2 (en) | 2003-04-02 | 2007-10-30 | Yamaha Hatsudoki Kabushiki Kaisha | Air intake system for off-road vehicle |
US7506712B2 (en) * | 2003-04-02 | 2009-03-24 | Yamaha Hatsudoki Kabushiki Kaisha | Off road vehicle with air intake system |
US7438147B2 (en) * | 2003-04-02 | 2008-10-21 | Yamaha Hatsudoki Kabushiki Kaisha | Transmission for off-road vehicle |
US7650959B2 (en) * | 2003-04-02 | 2010-01-26 | Yamaha Hatsudoki Kabushiki Kaisha | Frame arrangement for off-road vehicle |
US7510199B2 (en) | 2003-04-02 | 2009-03-31 | Yamaha Hatsudoki Kabushiki Kaisha | Off-road vehicle with wheel suspension |
KR100599279B1 (en) * | 2004-05-10 | 2006-07-14 | 현대자동차주식회사 | Motor Driven Power Steering System |
ITTO20110795A1 (en) | 2011-09-07 | 2013-03-08 | Cnh Italia Spa | STEERABLE VEHICLE |
CN102975760A (en) * | 2012-08-17 | 2013-03-20 | 安徽合叉叉车有限公司 | Electric fork-lift truck steering device |
CN103847434A (en) * | 2013-08-30 | 2014-06-11 | 洛阳百拓机械有限公司 | Driving axle of crawler loader |
JP6611507B2 (en) * | 2015-07-30 | 2019-11-27 | 株式会社クボタ | Paddy field machine |
JP2017029037A (en) * | 2015-07-30 | 2017-02-09 | 株式会社クボタ | Paddy-field work machine |
JP6624836B2 (en) * | 2015-08-03 | 2019-12-25 | 株式会社クボタ | Paddy working machine |
DE102015118292A1 (en) * | 2015-10-27 | 2017-04-27 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Steering gear for a vehicle, vehicle, method for driving a steering gear and method for steering a vehicle |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE121724C (en) | ||||
DE1288930B (en) | 1962-05-18 | 1969-02-06 | Jarmuefejlesztesi Intezet | Hydraulic power steering |
DE2121724C3 (en) * | 1971-05-03 | 1974-08-08 | A. Ehrenreich & Cie, 4000 Duesseldorf-Oberkassel | Rack and pinion steering with integrated hydraulic power steering |
JPS6048383B2 (en) * | 1979-06-07 | 1985-10-26 | 株式会社クボタ | Tractor steering section structure |
DE3245085A1 (en) * | 1982-12-06 | 1984-06-07 | Kramer-Werke GmbH, 7770 Überlingen | MOBILE WORK TOOL |
US4533010A (en) * | 1982-12-30 | 1985-08-06 | David Harder | Truck having a front axle oscillatable relative to a rear axle |
AU573991B2 (en) * | 1986-03-27 | 1988-06-23 | Kubota Ltd. | Steering apparatus for a front wheel drive tractor |
DE3872252D1 (en) * | 1987-12-17 | 1992-07-23 | Zahnradfabrik Friedrichshafen | AGRICULTURAL OR BUILDING COMMERCIAL TRACTOR WITH A STEERABLE RIG AXLE. |
JP2740316B2 (en) * | 1988-03-12 | 1998-04-15 | ツァーンラートファブリーク、フリードリッヒスハーフェン、アクチエンゲゼルシャフト | Steerable wheel axle assembly for automobiles |
EP0445164B1 (en) * | 1988-11-25 | 1992-07-15 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Installation for a steerable rigid axle on a tractor chassis |
DE4021838C2 (en) * | 1990-07-09 | 1995-04-06 | Daimler Benz Ag | Motor vehicle with a chassis and an attachment connected to it |
EP0499333B1 (en) * | 1991-02-14 | 1994-12-14 | Carraro S.P.A. | A steering axle for vehicles |
-
2000
- 2000-06-23 GB GB0015302A patent/GB2363767B/en not_active Expired - Fee Related
-
2001
- 2001-05-14 US US09/854,742 patent/US6386310B2/en not_active Expired - Fee Related
- 2001-05-28 DE DE60107903T patent/DE60107903T2/en not_active Expired - Lifetime
- 2001-05-28 EP EP01112790A patent/EP1167160B1/en not_active Expired - Lifetime
- 2001-05-28 AT AT01112790T patent/ATE285353T1/en not_active IP Right Cessation
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2014233559B2 (en) * | 2013-09-24 | 2017-09-21 | Iveco S.P.A. | Steering system assembly for commercial vehicles and commercial vehicle comprising the steering system assembly |
US9527536B1 (en) * | 2015-08-24 | 2016-12-27 | Deere & Company | Telescopic wheel hub |
CN109436086A (en) * | 2018-10-29 | 2019-03-08 | 苏州履坦智能科技有限公司 | A kind of multiple strand chain transmission wheel type vehicle steering mechanism |
CN110566664A (en) * | 2019-07-29 | 2019-12-13 | 李昶 | Shock attenuation variable speed steering mechanism |
US20220289290A1 (en) * | 2021-03-15 | 2022-09-15 | Oshkosh Corporation | Steering assembly for vehicle |
US11753072B2 (en) * | 2021-03-15 | 2023-09-12 | Oshkosh Corporation | Steering assembly for vehicle |
Also Published As
Publication number | Publication date |
---|---|
DE60107903D1 (en) | 2005-01-27 |
EP1167160B1 (en) | 2004-12-22 |
EP1167160A2 (en) | 2002-01-02 |
EP1167160A3 (en) | 2004-02-11 |
GB2363767B (en) | 2003-10-08 |
ATE285353T1 (en) | 2005-01-15 |
US6386310B2 (en) | 2002-05-14 |
GB2363767A (en) | 2002-01-09 |
GB0015302D0 (en) | 2000-08-16 |
DE60107903T2 (en) | 2005-12-08 |
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