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WO/1987/002636A1 |
A wide track vehicle with improved skid steering by having a chassis (1) supported upon two independently drivable tracks (2) by side support wheels (3) engaged with each track adjacent the outer edges only. Downwardly projecting rubbing...
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WO/1987/002635A1 |
A tracked vehicle of narrow aspect suitable for unmanned operation both in hazardous environments and on routes normally accessible only to pedestrians, comprises two identical vehicle units (1, 2) each having an independently drivable, ...
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WO/1987/002112A1 |
Vehicle steering differential have heretofore had a number of assembly, disassembly and serviceability disadvantages or have not been compact enough. The instant differential drive assembly (10) overcomes these deficiencies by including ...
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WO/1986/007324A1 |
A triple-radius steering gear system (1 plus 2) in which are located a hydrostatic partial gear (1) and a mechanical partial gear (2). A zero-shaft (21) actuates, via a summation gear (3) and output shafts (34), the track-laying wheels o...
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WO/1986/002893A1 |
A tractor with slip steering, comprising a bogie-borne frame (1), which carries a driving cab (2) and a drive package for the transmission of the drive power to the wheels (3, 4) of the tractor. It is characteristic of the tractor that, ...
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WO/1986/002890A1 |
A device for a maneuver member (1) comprising a pivotable and turnable, preferably T-shaped maneuver lever (2) for regulating the speed and direction of run of a slip-steered vehicle, the said maneuver member being attached to the rotabl...
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WO/1986/002892A1 |
A gearbox for a full-track vehicle, which has a support-like casing (1) in and on which pre-manufactured and pre-tested components (2 to 11) are simply attached and fixed in position, whereas the operating connections - the driving-press...
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WO/1985/003823A1 |
Information related to the rotary angular position of a steerable wheel portion (20) of an electric vehicle (12) is required for proper control of the vehicle (12) and especially for differential control of the driven wheels (14, 16) of ...
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WO/1985/001784A1 |
A no-slip, imposed differential uses a first unlimited slip differential (15) connected for driving a pair of axle shafts (16) and (17) and a second unlimited slip differential (20) connected between a pair of control shafts (22) and (23...
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WO/1985/001484A1 |
Hydraulic drive for a skid steer loader wherein the power plant (12) drives a continuously variable output pump (13) whose output is coupled by control valves (17) to hydraulic drive motors with speed control achieved by adjusting the pu...
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WO/1985/001275A1 |
A tracked load carrying vehicle comprises a chassis (10); an engine (11) mounted on the chassis for propelling the vehicle; an output shaft (13) driven by the engine; two tracks (14, 15) provided in parallel on either side of the chassis...
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WO/1985/001026A1 |
A tank engine drive shaft (1) drives respective tank track drive shafts (20, 30) by way of a continuously-variable ratio transmission variator (200), a transfer system (12, 13, 15) including coupling means (C1, C2, 16, 17), a cross shaft...
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WO/1984/003675A1 |
A vehicle steering differential (10) includes a case (12) defining a chamber (76), an opening (78) on a transverse axis (36) communicating therewith, and a mounting surface (80) about the opening (78). An input pinion gear (14) and a bev...
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WO/1984/001134A1 |
A control mechanism (14) associated with a tractor operators seat (110) and an arm rest (112) which includes a steering selector apparatus (116) having an upstanding member (134) and a tiller arm (118) extending outwardly therefrom. The ...
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WO/1983/000034A1 |
Clutch-clutch-brake steering unit (38, 38-2) having hydraulically actuated cylinders for controlling same to control rotation of a track-drive sprocket (22, 24) in a crawler tractor (10). Specifically, one of the clutch cylinders and a b...
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WO/1982/000867A1 |
Continuously driven vehicle steering differentials have heretofore been too complex and have undesirably incorporated a second cross shaft for counter-rotating a pair of oppositely located planetary elements. The planetary steering diffe...
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WO/1981/003471A1 |
A crawler tractor (10) adapted for stepless hydromechanical steering by driving. The power train terminates in a novel hydromechanical steering differential (25) delivering its output to an oppositely extending pair of axles (38, 40) at ...
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WO/1981/003052A1 |
A combined propulsion-and-steering transmission for tracklaying or skid-steered vehicles, from power input (1) to left and right output shafts (33, 34). The transmission is of infinitely variable, split output type, suitable for synchron...
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WO/1981/002476A1 |
A toggle linkage (70) is provided to interact between a pair of levers (50, 52) located between a pair of input functions, i.e. a pair of depressible foot treadles (22, 24), and a pair of output functions, i.e. control linkages for opera...
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WO/1981/002209A1 |
A twin control lever arrangement for the control of three functions such as hydraulic valves. The arrangement includes a first control lever (10) mounted on a first mounting means (12) for pivoting about first (A) and second (B) perpendi...
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WO/1981/001596A1 |
An improvement for a steering differential (11) for a tracked vehicle (12) comprising a liquid cooled, hydraulically operated disc brake (10), two of which are normally used upon the differential (11) to brake and steer the vehicle. A nu...
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WO/1981/001311A1 |
A fluid motor control system (11) assures that automatic changes of motor displacement, which are initiated by occurrence of a predetermined operational condition in the system (11), result in a change of motor speed of the desired magni...
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WO/1981/000240A1 |
The steering device of a caterpillar vehicle comprising a combustion engine (1) with a gearing box (3), possibly automatic, and a steering shaft (4), comprises two planetary driving mechanisms (8-10) the three axes of which are connected...
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WO/1980/002824A1 |
The drives (34, 34') of a vehicle are each driven by a pump (18) and motor (22) of a hydrostatic transmission (23). A servo-system (20) associated with each pump (18) is adapted to be controlled by a steering arrangement (35, 36) for sel...
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WO/1980/001597A1 |
A geared steering clutch mechanism (18) for use in a vehicle having left and right side propelling devices (11, 12), such as tracks, a power drive (16), and a final drive (15) connecting the power drive to the respective left and right p...
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WO/1980/000240A1 |
A steering control system for use on a dual path, hydrostatic drive vehicle. The steering control system includes a steering signal generator (61), the steering signal (63, 65) representing commanded steering ratio and direction. The sys...
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WO/1979/000561A1 |
A multi-purpose four-wheel drive vehicle is disclosed having four-wheel steering. A hitch (68) is slung below the vehicle body between the front and rear wheels or forward of the front wheels. By slinging the hitch in this manner the for...
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JP2024048380A |
A soft target moving platform for transporting soft targets is provided. A platform 181 includes a first drive motor, a first driven wheel that can be driven by the first drive motor, a second drive motor, and a second driven wheel that ...
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JP2024021981A |
An object of the present invention is to provide a front-wheel drive moving body that can improve operability while suppressing an increase in the turning radius of the rear wheels. [Solution] A moving body 1 has front wheels 2, 2 provid...
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JP7429201B2 |
In a crawler type work machine, when switching from a pivot turning mode to a straight travel mode or a slow turning mode, a controller is configured to maintain a rotation speed of the turning motor until after a first timing at which t...
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JP7422821B2 |
A skid steered light all terrain vehicle (LATV), including two driving units for the wheels or tracks on both sides of the vehicle and a differential steering device with a differential gear. The differential steering device is designed ...
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JP2024011348A |
[Problem] A traveling vehicle with excellent energy saving properties that can reduce costs by sharing a continuously variable transmission for straight-line driving and turning driving, and reduce the capacity of various devices that su...
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JP2024001925A |
[Problem] In controlling the running speed of a small riding mower, in particular the turning running speed control related to steering, ideally controlling the speed according to the unique abilities of the operator, such as the kinesth...
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JP2023181797A |
To provide a work vehicle capable of accurately controlling travel or work, according to a state of a work place, a model, and a travel state.A work vehicle comprises: a machine body; a travel unit 12 provided on the machine body; a mach...
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JP7394690B2 |
Provided is a travel operation device for a crawler aerial work vehicle equipped with an operation panel that can be operated with one hand and that provides stable operating conditions even when swayed from side to side. A travel operat...
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JP7372629B2 |
To enable appropriate traveling of a crawler belt type traveling apparatus in which two traveling bodies capable of being curved three-dimensionally are joined.Each of a right traveling body 1R and a left traveling body 1L has: a plurali...
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JP2023141474A |
To provide an articulate type vehicle capable of suppressing meandering travel while improving following accuracy to a target route.An articulate type vehicle includes a front frame and a rear frame connected rotatably in a right and lef...
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JP2023136675A |
To provide a work vehicle that is configured to transmit power of a motor mounted on a vehicle body to left and right crawler-type travel devices through a transmission and self-travel while making a steering device including a side clut...
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JP7344829B2 |
To provide a felling work vehicle that suppresses the bias of a load to a front portion side and a rear portion side of a crawler unit body rocking about a rocking shaft member, and can improve the traveling performance of the felling wo...
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JP2023128168A |
To provide a turning method which enables turning with small output without damaging a field as much as possible when a track vehicle is turned.A turning control device (18) for automatically turning a track vehicle (10) having crawlers ...
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JP2023128170A |
To provide a turning method which enables turning with small output without damaging a field as much as possible when a track vehicle is turned.A turning control device (18) for automatically turning a track vehicle (10) having crawlers ...
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JP7338727B2 |
To provide a crawler type traveling body that is able to travel in a stable posture even on an irregular ground having many undulations and varying in ground condition.A crawler type traveling body has: at least two traveling units 30a, ...
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JP2023118535A |
To provide a work machine that can improve operation stability.After recognizing that a bulldozer 1 is transferred from a first running state to a stopping state, a controller 100 generates a double engagement state by engaging a velocit...
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JP7326149B2 |
It is possible to return to a planned traveling route (L) easily while suppressing damage of an agricultural field (H).A working machine (1) includes a machine body (3); a steering device (11) capable of changing the orientation of the m...
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JP7323957B2 |
To provide a self-propelled work machine that can turn safely, without a special device to be towed mounted on a work machine.A self-propelled work machine comprises: travelling parts D which are provided at left and right sides in an ad...
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JP7323974B2 |
To provide a hydraulic circuit travel operation device and a method capable of allowing a driver to intuitively perform a driving operation with comfort, even when a driver drives in a front/rear reverse state, and construction equipment...
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JP7321428B2 |
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JP2023107830A |
To enable a position to be easily corrected in automatic steering.A work vehicle comprises: a correction switch which can be operated in order to perform steering of a vehicle body separately from a steering handle during the movement of...
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JP7317947B2 |
The invention relates to a method for controlling a motion of a counter balance forklift truck, the method comprises: detecting that a steering command generated with an endless rotating steering device corresponds to a reference steerin...
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JP2023092325A |
To provide an engine drive type-grass mower capable of travelling while mowing grass along a contour line on a slope surface with a high degree of precision.A grass mower includes: an engine; an inclination angle calculation unit 71 for ...
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