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Patent Searching and Data


Matches 201 - 250 out of 8,912

Document Document Title
WO/1999/040499A1
A cruise bar (40) is provided for use with a lawn tractor (10). The lawn tractor (10) includes a frame (18), driving means (14) for use in driving the lawn tractor (10), a first drive wheel (16a) for use in driving the lawn tractor (10),...  
WO/1999/038752A1
A children's ride-on vehicle is provided with a chassis (12) formed at least in part of molded plastic, a seat (14) mounted to the chassis (12) and configured to accommodate a driver, and first and second driven wheels (16, 18) mounted t...  
WO/1999/032344A1
The invention concerns a steering method for a walking person driving a self-propelled trolley comprising a right drive wheel, a left drive wheel, at least two pivoting wheels, a handle for the trolley to be operated by the driver, which...  
WO/1999/010606A1
A skid steer loader vehicle (10) comprising a body having a front end (12) and a rear end (13) and provided with first (14) and second (17) ground engageable propulsion means respectively disposed on opposite sides of the vehicle and in ...  
WO/1998/051523A1
A drive unit provided with a power transmission path interlockingly connecting an engine (E) to left and right sprockets (12L, 12R), which are adapted to drive left and right crawlers (11) of left and right traveling parts (1L, 1R), via ...  
WO/1998/043845A1
The present invention relates to a device for a differential gear for vehicles, comprising driving means (32, 210) capable of driving the vehicle and steering means (18, 212) capable of changing the direction of the vehicle, which differ...  
WO/1998/032645A1
A mobile agricultural machine which comprises travelling speed change members (23, 24) for effecting speed change and transmission of a drive force of an engine (21) to right and left travelling sections (2, 2), with a travelling speed c...  
WO/1998/022734A1
A multiple input, dual output differential motor transmission device (141, 142) incorporates a sun gear device (12) having first and second sun gears (12a, 12b) fixedly connected to each other whereby the first and second sun gears (12a,...  
WO/1998/012098A1
In an operation mechanism of an HST system transmission apparatus of the type in which an HST system non-stage transmission mechanism for driving and an HST system non-stage transmission mechanism for turning are disposed, the HST system...  
WO/1998/010972A1
A pump operating unit (40) is provided in an operating section for controlling the steering and speed change of travelling sections (1L, 1R) connected interlockingly to a pair of variable flow rate control pumps (PL, PR) via link mechani...  
WO/1998/006617A1
Child's vehicle (10) including body portion (12) configured to carry a child, having at least three wheels (20, 22) mounted to the body portion. The vehicle includes a drive system with an electric motor (24) and a battery (26), the driv...  
WO/1997/045313A1
An electrically powered vehicle having two primary ground engaging wheels (5) operatively connected to a driving motor (10) by an automatic transmission (50) and to a steering motor (20) by a shiftable bevel gear (7b) which permits oppos...  
WO/1997/040996A1
A road maintenance tracklaying vehicle (1) has an internal combustion engine (2) which drives by means of a gear (3, 13, 14) the tumbler (4) of each track (5), and secondary drives (6) for accessory units (7, 8, 9) such as rotary snow pl...  
WO/1997/010114A1
A coupling device (7) interposed between right and left wheels (5L, 5R) of a vehicle. The device can perform a start assisting control, a turning control for improving the turning performance by positively generating a differential rotat...  
WO/1997/002975A1
A differential driving system capable of operating as a steering system for skid steer vehicles having two differentials, a steering differential (11) dedicated to steering and a propulsion differential (1) having its planet carrier (2) ...  
WO/1997/000190A1
A cross-drive steering transmission for steering a tracklaying vehicle is characterised in that at least two fixed mechanical reduction gears allow for at least two turning radii, in that steering radius automatic switching means are pro...  
WO/1996/018056A1
A hydraulic pilot valve comprises a valve body, first, second and third pressure reducing valves formed in the valve body and each having an inlet port, an outlet port and a spool for providing communication and shut-off between the inle...  
WO/1996/013395A1
A ball joint assembly comprising a base member (60), a spherical member (20), a ring of at least three rolling members (40) mounted around the spherical member (30) such that a point on a rolling surface of each of the least three rollin...  
WO/1996/005996A1
A vehicle for underground mine shafts comprising a body (11) having a cabin (21) for passengers, a pair of tracks (12) on either side of the cabin (21), a drive means (35) for driving the tracks (12), steering means (239, 287) for steeri...  
WO/1996/004163A1
A system and process for operating a track trencher excavation machine includes multiple mode propulsion and steering controls that perform a plurality of functions depending on a selection of one of a plurality of operational modes. A c...  
WO/1995/035220A1
A running control circuit for a hydraulically driven running device comprising a hydraulic pump, parallel left- and right-hand directional control valves provided along a discharge path of the hydraulic pump, sets of first left- and righ...  
WO/1995/034460A1
A motor vehicle (1) including modular units for operating two rear wheels (10) of the vehicle, the motive unit (3) includes a rigid link (100) which is pivotally connected between the rear wheel and the motive unit, and the motive unit i...  
WO/1995/026277A1
A travelling hydraulic device characterized in that left and right direction change-over valves are provided for supplying pressure oil to left and right travelling hydraulic motors, that a spool hole having a pump port, an actuator port...  
WO/1995/018736A1
A hydro-mechanical steering differential for providing differential steering of the left and right hand tracks of a tractor is disclosed. The steering differential is powered by a mechanical input and a hydraulic input, and includes left...  
WO/1995/015272A1
The invention relates to a cross-drive steering transmission for a tracked vehicle, in particular a protection device for such a steering transmission (7). Steering transmissions for tracked vehicles have the essential disadvantage that ...  
WO/1995/011816A1
An articulated tracked vehicle (10) for agricultural harvesting which reduces damage to fields and can be driven on roads at reasonable speeds. The vehicle has elements (12, 14), linked by an articulating joint (230) which permits turnin...  
WO/1994/008837A1
A tracked vehicle (10) propelled by a pair of direct current electric motors (35) operating through a power train to a pair of endless tracks (11). Each power train operates a track drive sprocket (14) through a state of the art torque h...  
WO/1994/003343A1
A linear advancement compensating apparatus for a hydraulic circuit for hydraulically driven vehicles, comprising left and right travelling valves (24, 25) connected at the inlet sides thereof to a hydraulic pressure source (20) via left...  
WO/1994/002346A1
The invention concerns a control device for a vehicle propulsion drive comprising two hydrostatic transmissions (3, 4) with adjustable reduction ratios, each transmission comprising a hydraulic pump (12, 13) and a hydraulic motor (14, 15...  
WO/1993/023278A1
Steering device for a tracked vehicle having at least one endless track. The track is provided with a number of grip shoes (2) comprising an upper part (3) which is fixedly connected with the track, and a sole part (4) which is displacea...  
WO/1993/019975A1
When using a self-supporting wheel tractor body to build a tracklaying tractor, it is necessary to supplement the body of the tractor with a massive frame for spring mounting the running wheels. This frame has the disadvantage of conside...  
WO/1993/018956A1
The invention relates to a transmission and steering apparatus for a tracked vehicule, which tracked vehicle comprises a driving track unit which drives the tracked vehicle, and which transmission and steering apparatus comprises a trans...  
WO/1993/008067A1
The invention provides controlled omnidirectional relative movement between a device and a selected surface in contact therewith. The device is preferably a vehicle (10) having a first and second track (14A, 14B) mounted thereto, which t...  
WO/1993/005995A1
The invention relates to a drive for a vehicle with running gears rolling on a base, especially caterpillar tracks (8a, 8b). The drive is provided via a motor (1), a gearbox (3) driven thereby and summarizing gear (6) to drive the vehicl...  
WO/1993/005996A1
A track-type vehicle (10) having first and second endless track assemblies (20, 22) and first and second steerable wheels (16, 18) includes a weight management apparatus (29) including a measuring assembly (36) for measuring the angle of...  
WO/1993/005974A1
A skid steer loader (1) has its engine (7) and drive transmission assembly (8) supported in a pod that is removable through a rear access door (15). The loader side wheels (28, 30) (29, 31) are coupled on each side to a common sprocket (...  
WO/1992/013746A1
The present invention relates to a steering control system by pilot pressure, in which responsiveness is good, controlling force is light and a control input of a control lever is always constant independent of the wear of a brake and a ...  
WO/1992/012889A1
This invention relates to a skid steer loader capable of spin turning. There are provided a rotatably controlled type steering wheel, an accelerator pedal and a travelling lever for determining a foreward movement, a neutral position and...  
WO/1992/008278A1
A propulsion system for using a pair of electric induction motors (23a, 23b) to power a pair of vehicle drive wheels. The motors are driven by pulses of electric current from a common dc bus (22). The inductance of stator windings cause ...  
WO/1992/005063A1
A fluid control circuit (10) for controlling the disengagement of first and second drive mechanisms (12, 14) and the engagement of first and second brake mechanisms (16, 18) for a track-type vehicle has a fluid pump (50) and first and se...  
WO/1992/003327A1
A device for controlling a hydraulic steering clutch and brake to be used for a caterpillar ?R¿ vehicle such as a bulldozer, which is simple in structure and drivable even with a monolever. For satisfying the purpose, one steering lever...  
WO/1991/019117A1
A device for driving a pair of output shafts (19, 20) from a common rotary input shaft (2) and for permitting differential rotation of the output shafts relative, to each other. The device comprises means (3, 4) for coupling the input sh...  
WO/1991/010585A1
Differential reduction drives on opposite sides of a vehicle are steer driven by a pair of worm gears (110) meshed with worm wheels (111) inputting steering torque into each reduction drive. The worm gears are rotationally interconnected...  
WO/1991/006903A1
A vehicular steering and transmission shifting control mechanism (10) includes a transversally rockable control handle (8) and a steering actuator element (35) connected at the bottom thereof to selectively depress either a left or right...  
WO/1991/004426A1
A differential gear device for the transverse-shaft driving unit of the crawler vehicle, which is a planetary differential gear for steering structurally compact and economically excellent. For attaining the objects, the device is provid...  
WO/1991/000208A1
A control system (34) is provided in a propulsion system (10) to automatically apply the right or left brake (28/30) on the respective drive unit (24/26) with respect to operator input conditions. In this arrangement, if the operator sel...  
WO/1990/014262A1
A vehicular steering mechanism of overly complex construction is known which displaces a left turn control valve or a right turn control valve through separated cams in response to the rotation of a steering wheel. The subject steering m...  
WO/1990/012714A2
In order to reduce the number of component parts required in a master cylinder for a hydraulic brake and steering brake system consisting of two master cylinders interconnected by a compensating line, the compensating line (60) is connec...  
WO/1990/012225A1
This invention relates to a two-path hydromechanical transmission mounted on the caterpillar vehicle or the like and to a method of controlling the same, in which excellent operability and straight advancement performance can be obtained...  
WO/1989/011051A1
A system for dividing rotary power to two or more output shafts (68, 168) includes planetary cluster cages (48, 52) that are associated with the output shafts and which are interconnected by a hydraulic circuit (66, 166). In instances wh...  

Matches 201 - 250 out of 8,912