| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 180900500 | Track support mounted for vertical movement | 32 |
| 20080196947 | Multi-pivot vehicle suspension - An all terrain vehicle and suspension providing frame members that pivot relative to each other and independent of supported track assemblies. Suspension frame sections pivot at supported bearings and torsion couplers. An endless track of each track assembly is trained around a framework having a drive sprocket and sets of idler wheels. The track assemblies independently pivot relative to the vehicle from a track suspension frame and supported sets of idler wheels mounted to torsion biased rocker arms that resist and bias the rocker arms and idler wheels to an equilibrium position and conformally shape the track to the terrain. Improved track drive lug surfaces are shaped to prevent track derailment. The vehicle frame and track assemblies independently rise, fall and pivot as obstacles of differing configurations and types are encountered to stabilize and maintain an operator body substantially parallel to the ground. | 08-21-2008 |
| 20090200091 | Track Connection System for Mobile Vehicles, Including Lift Cranes - A crawler has a track connection system. The crawler includes a crawler frame; at least one drive tumbler supported on the frame; a track made of a plurality of track shoes connected in series to produce a track having a first end and second end that can be connected together to form the track into an endless track. The track is wrapped around the frame, with the first and second ends spaced apart but each adjacent a section of the frame. The track connection system is mounted to the frame and includes a mover device connected to the frame; and a track engagement member coupled between the mover device and the track; iii) whereby actuation of the mover device causes the track engagement member to move the track into a position where the first and second ends can be connected. | 08-13-2009 |
| 20100071969 | TRAVELING MECHANISM FOR AGRICULTURAL MACHINES AND OFF-ROAD VEHICLES HAVING AN ENDLESS BELT-BAND TRAVELING GEAR AND A CORRESPONDING BELT-BAND TRAVELING GEAR - The invention relates to a spring-suspended, bearing force-optimized belt-band traveling gear ( | 03-25-2010 |
| 20110031045 | TRACKED MOBILITY DEVICE - A tracked mobility device includes: a) a pair of independent, self-supported track drives defining a planar ground contact area; b) a multi-directional wheel having a raised position above the plane of the ground contact area, and a lowered position below the plane of the ground contact area; and c) an actuator for moving the multi-directional wheel to either its raised or its lowered position. When the actuator lowers the multi-directional wheel, part of the planar ground contact area is raised from the ground without raising all of the planar ground contact area from the ground. Each track drive functions independently so that bumps along one track may be traversed without tilting the entire vehicle. Each track drive may be attached to the vehicle body with flexible mounts that allow each track drive to independently tilt upward or downward as the device moves on its tracks. | 02-10-2011 |
| 20110036649 | Multi-Link Bridge In Undercarriage System - The present invention employs a multi-link to an excavator for the first, and restricts a relative movement of the center frame ( | 02-17-2011 |
| 20110079452 | DUAL MODE UNDERCARRIAGE FOR TRACKED VEHICLE - A vehicle with a frame connecting a driver wheel, an idler wheel and mid-roller wheels, an endless track belt being tensioned around the driver wheel and the idler wheel and being in contact with the mid-roller wheels on a lower run thereof, the mid-roller wheels being arranged in boogies, including a front boogie having a first pivot axis, a middle boogie and a rear boogie arranged in tandem having a second pivot axis, wherein the first pivot axis and said second pivot axis act as load transfer pivots. | 04-07-2011 |
| 20120125701 | Multi-povot vehicle suspension - An all terrain vehicle and suspension providing frame members that pivot relative to each other and independent of supported track assemblies. Suspension frame sections pivot at supported bearings and torsion couplers. An endless track of each track assembly is trained around a framework having a drive sprocket and sets of idler wheels. The track assemblies independently pivot relative to the vehicle from a track suspension frame and supported sets of idler wheels mounted to torsion biased rocker arms that resist and bias the rocker arms and idler wheels to an equilibrium position and conformally shape the track to the terrain. Improved track drive lug surfaces are shaped to prevent track derailment. The vehicle frame and track assemblies independently rise, fall and pivot as obstacles of differing configurations and types are encountered to stabilize and maintain an operator body substantially parallel to the ground. | 05-24-2012 |
| 20130048392 | Dual track vehicle - A recreational vehicle comprising a body, a steering mechanism, a straddle seat, first and second track assemblies located in respective sides of the straddle seat, at least one motor for driving the track assemblies, and a platform for receiving the feed of a driver, the platform being located intermediate the tracks and the seat, the platform being located at a height of between 10% and 90% of the height of the tracks. | 02-28-2013 |
| 20130118817 | VEHICLE SUSPENSION SYSTEM - A vehicle equipped with a double wishbones and double tandem members suspension system to suspend the vehicle, the double tandem members being operatively interconnected together and adapted to receive idling wheels adapted to support and guide an endless belt thereon to provide significant suspension travel and prevents an endless belt disengagement from the idling wheels. A suspension system and a kit thereof are also provided. | 05-16-2013 |
| 20140138169 | SUSPENSION ASSEMBLY FOR PERSONAL TRACKED VEHICLE - A suspension assembly for a personal tracked vehicle comprises a first swing arm pivotally connectable to a frame of the vehicle. The first swing arm has a first end and a second end. A second swing arm is pivotally connectable to the first swing arm. The second swing arm has a first end and a second end. At least one spring member is connected to the first and second swing arms. At least one first wheel is rotatably connected to the first end of the first swing arm. At least one second wheel is rotatably connected to the first end of the second swing arm. The at least one first and second wheels are adapted to be in contact with the same track of the vehicle. The first and second wheels are one of an idler wheel and a drive wheel. Suspensions and personal tracked vehicles are also presented. | 05-22-2014 |
| 20140166376 | EQUALIZER BAR END JOINT - An equalizer bar end joint may include a pin defining a longitudinal axis; and a bearing configured to support the pin. The bearing may include an inner race including a bore configured to cooperate with the pin and a semispherical outer surface. The bearing may also include an outer race including a semispherical inner surface, wherein the semispherical inner surface of the outer race is configured to cooperate with the semispherical outer surface of the inner race. A solid lubricant may be disposed about a surface of the bore, and a first seal may be positioned within a first groove disposed about the bore at a first end and a second seal may be positioned within a second groove disposed about the bore at a second end. | 06-19-2014 |
| 20150083504 | Arrangement in a Forestry Machine and a Forestry Machine Equipped with a Corresponding Arrangement - The invention relates to an arrangement in a forestry machine ( | 03-26-2015 |
| 20150136497 | Track System - A track system for use as a wheel replacement on a vehicle comprises a first drive wheel configured to be mounted to the vehicle, a first frame pivotally yet non-drivingly mounted to the first drive wheel, a second frame mounted to the first frame, at least a second drive wheel pivotally mounted to the second frame, at least an idler wheel pivotally mounted to the second frame at a second extremity, and at least an endless traction band disposed about the second drive wheel and the idler wheel. The second drive wheel is configured to drivingly engage the traction band. The first drive wheel is operatively coupled to the second drive wheel via a transmission mechanism (e.g. a loop) such that rotation of the first drive wheel causes the rotation of the second drive wheel. | 05-21-2015 |
| 20150329177 | SNOWMOBILE - A snowmobile includes a chassis comprising a bulkhead and a tunnel, a front suspension coupled to bulkhead, a rear suspension coupled to the tunnel, and slide rails coupled to the rear suspension. The rear suspension includes a toggle link pivotally coupled to the tunnel at a first pivot coupling, and a rear control arm coupled between the slide rails and the toggle link. The toggle link is pivotally coupled to the rear control arm at a second pivot coupling. The rear suspension also includes a carrier roller coupled to the toggle link. The toggle link is movable to a plurality of positions relative to the toggle link to vary the dynamics of the vehicle propulsion. | 11-19-2015 |
| 20160144907 | EQUALIZER BAR METHOD AND MANUFACTURE - A method of repairing an equalizer bar including removing a portion of the end of the equalizer bar which may create an elongated member. The elongated member may include an attachment surface at one end. The method may include positioning an equalizer bar end to the elongated member. The equalizer bar end may include a hole and a mating surface configured to attach to the attachment surface of the elongated member. The method may include aligning the hole with a hole terminal end in the elongated member, and securing a fastener into the hole and hole terminal end. | 05-26-2016 |
| 20170233017 | TRACKED PISTE GROOMING VEHICLE FOR MAINTENANCE AND SHAPING OF SNOWY TERRAIN | 08-17-2017 |
| 180900520 | Adjustable | 5 |
| 20100084204 | CRAWLER DEVICE AND AUTOMATIC ATTITUDE CONTROL OF THE SAME - Theme To provide a small-sized crawler device that can stably ride over bumps or steps or stairs. | 04-08-2010 |
| 20110174555 | CRAWLER TRAVEL GEAR AND CRAWLER-MOUNTED CRANE - A crawler travel gear that can be applied to a crawler-mounted crane. The crawler travel gear includes a crawler carrier, rollers arranged at the crawler carrier and a crawler chain, with a respective adjustment mechanism provided in the front region and rear region of the crawler carrier for selectively adjusting the contact surface of the crawler carrier relative to an underlying surface. | 07-21-2011 |
| 20120305321 | SNOW GROOMER AND RELATIVE CONTROL METHOD - A ski slope snow groomer having a frame; two wheel assemblies on opposite sides of the frame; two tracks wound respectively about the two wheel assemblies; a variable-configuration shock absorber assembly connected to the wheel assemblies and the frame and configured to adjust the wheel assemblies; and a control assembly configured to acquire a signal indicating an operating state of the snow groomer, and to adjust the shock absorber assembly as a function of the operating state signal. | 12-06-2012 |
| 20130153310 | Suspension System and Control Method for Track-Propelled Machines - A suspension system for cold planer with four tracks is disclosed. The suspension system includes a hydraulic cylinder for each track, an additional bypass valve for each hydraulic cylinder and an additional bypass valve that bypasses the operation of the front control valves that control the elevation of the front tracks during a cutting operation. During transport or roading of the cold planer, the bypass valves are energized by a controller and the energized bypass valves provide communication between the head ends of the left side cylinders and the head ends of the right side cylinders. During roading, the energized bypass valves also provide communication between the rod ends of the front cylinders and between the rod ends of the rear cylinders. | 06-20-2013 |
| 20130277125 | Independent Front Suspension with Pitch Control for Track-Type Tractor - A front suspension system for a track-type tractor includes a suspension saddle having first and second suspension arms pinned to the suspension saddle, the first and second suspension arms being connected to the machine tracks via first and second front idler respectively. Respective first and second hydraulic suspension assemblies support the first and second suspension arms, and a hydraulic suspension circuit fluidly links the first hydraulic suspension assembly to the second hydraulic suspension assembly such that a movement of either the first or the second hydraulic suspension assemblies causes an opposite movement of substantially the same magnitude in the other of the first and second hydraulic suspension assemblies, thereby allowing the first track and the second track of the track-type tractor to oscillate relative to one another. | 10-24-2013 |
| 180900540 | With spring | 11 |
| 20080210478 | Walking Beam Suspension for Tracked Vehicle - A suspension for a tracked vehicle includes a bogie wheel assembly which has a pair of bogie wheels mounted to a walking beam. The walking beam is coupled to a body of the vehicle by a transversely-extending arm. The arm may be coupled to the body by a spherical bearing which permits angular rotation in at least two directions. The walking beam is connected to the body by shear members arranged in an inverted-V configuration. The shear members may be elastomeric springs. | 09-04-2008 |
| 20090050379 | TRACK VEHICLE HAVING DRIVE AND SUSPENSION SYSTEMS - A track vehicle includes a cab operable to support an operator. Left and right motors each rotate an output shaft at a first speed, and a speed reduction system is operably coupled to each output shaft. Left and right drive shafts are driven by the speed reduction system at a second speed that is slower than the first speed. Left and right drive sprockets are mounted for rotation with the respective first and second drive shafts. Left and right track carriages support the cab and left and right tracks are mounted for rotation about the track carriages in response to rotation of the respective left and right drive shafts, such that the left and right tracks are driven by the left and right drive sprockets to move the track vehicle along a ground surface. | 02-26-2009 |
| 20100044124 | Articulated Dozer With Suspension And Suspension Lockout - An articulated loader has an articulated chassis and two A-frames. The points of the A-frames face each other. The articulated chassis includes a front portion and a rear portion. Likewise, there is a front or first A-frame. and a rear or second A-frame. The A-frames are connected to the overall chassis at points close to but offset from the point of vehicle articulation via ball joints and via hydraulic suspension cylinders toward the wider portions of the “A”s. The vehicle is propelled along the ground by tracks that are independently suspended. The invention includes a suspension lockout feature to, effectively lockout the suspension system, i.e., render it rigid. One or more valves may are used to prevent hydraulic flow from and two the hydraulic suspension cylinders. | 02-25-2010 |
| 20140048344 | TRACKED CLIMBING MACHINE WITH COMPLIANT SUSPENSION APPARATUS - A tracked climbing vehicle containing a compliant suspension apparatus to prescribe the distribution of forces on the adhering members in the tracked climbing machine. The compliant suspension apparatus is configured to negotiate irregularities in a climbing-surface without the vehicle tracks losing full surface contact and adhesion by distributing the loads from the climbing machine chassis to the adhering traction members in a specific prescribed fashion. The apparatus thus avoids exceeding the allowable force in any adhering traction member and significantly improves the performance of the climbing machine. | 02-20-2014 |
| 20140231157 | CONTINUOUS TRACK DRIVE SYSTEM FOR A VEHICLE - The invention provides a continuous track drive system ( | 08-21-2014 |
| 20150114730 | SUSPENSION SYSTEM FOR TRACKED VEHICLES - A suspension system for a tracked vehicle includes support wheels arranged on opposite sides of the vehicle which are rotatably journalled at an outer end of a respective rocker arm, which is pivotably journalled in the side of a vehicle chassis of the vehicle, which rocker arm includes a pivot axle, which extends transversely to the longitudinal extension of the vehicle. A torsion element in the shape of a rubber bushing is rotationally fixed to the pivot axle and which rubber bushing is enclosed by and fixedly connected to an outer bushing sleeve arranged to be fixedly fastened in the side of the vehicle chassis. The pivot axle is pivotably journalled in the vehicle chassis with radial bearings arranged on each side of the rubber bushing. The outer bushing sleeve and a support housing comprises a pivot preventing member. | 04-30-2015 |
| 20160023695 | Agricultural vehicle - An agricultural vehicle having a full-track design with a vehicle structure on each side of which, relative to a vehicle longitudinal axis, a track roller unit is arranged. The track roller unit has roller unit body to which a front deflector roll, a rear deflector roller and a plurality of yoke-type track rollers arranged therebetween are coupled, and an endlessly closed track belt that wraps around the rollers/roller. All the rollers are suspended with respect to the roller unit body in that assigned to a roller or a group of rollers in each case is a spring element, which is acted upon by fluid, for the suspension thereof with respect to the roller unit body. | 01-28-2016 |
| 20160068205 | SUSPENSION DEVICE FOR TRACKED VEHICLE - The invention relates to a suspension device for tracked vehicles, which vehicle comprises at least one pair of track assemblies, where each track assembly of the pair of track assemblies comprises a track support beam, at least one drive wheel, a plurality of support wheels and an endless track, wherein said at least one drive wheel and said plurality of support wheels are rotatably secured to said track support beam. Said at least one drive wheel is arranged to drive said endless track running over the at least one drive wheel and said plurality of support wheels. The suspension device comprises a first suspension configuration constituting a support wheel suspension configuration configured to resiliently secure said support wheels to said track support beam, and a second suspension configuration configured to connect said track assembly pair with a centrally arranged center beam. The invention also relates to a tracked vehicle. | 03-10-2016 |
| 20160075405 | STRADDLE-TYPE VEHICLE - A snowmobile includes a transmission unit that transmits a driving force generated by an engine to the ground surface, in which ground touching portions of the transmission unit that are spaced apart from each other in the vehicle width direction receive reaction forces mutually different in magnitude from the ground surface; a suspension that supports the transmission unit so as to swing in the up-down direction; and a vehicle body vibration control damper extending between a first portion and a second portion that are spaced apart from each other of the vehicle body frame and a member fixed to the vehicle body frame, the vehicle body vibration control damper generating a damping force against variations that change the distance between the first portion and the second portion. | 03-17-2016 |
| 20160159416 | SHOCK ABSORBER FOR CRAWLER - A shock absorber for a crawler is disclosed. The shock absorber may have a coil spring to bias an idler wheel from a frame of the crawler. The shock absorber may also have an adjustment cylinder to adjust a bias force of the coil spring. The adjustment cylinder may have a flange projecting radially outward. The shock absorber may have a support member disposed circumferentially around at least a portion of the adjustment cylinder. The support member may have a spring bearing portion projecting radially outward. The shock absorber may have a retaining plate projecting radially from the adjustment cylinder. The retaining plate may be configured to prevent axial separation of the adjustment cylinder and the support member. The coil spring may be positioned on an outer peripheral side of the adjustment cylinder and the support member and disposed in abutting contact with the flange and the spring bearing portion. | 06-09-2016 |
| 20160167722 | Snow Bike Rear Suspension System | 06-16-2016 |
