Abstract: The invention concerns a suspension device for a tracked vehicle, comprising a track assembly (10) at the side of a centre beam (14), comprising a track support beam (20), two wheels (21, 22), several support wheels (23) and an endless track (11) that runs in a plane of rotation (A, A), a first suspension mounting with which the support wheels (23) are suspended at the track support beam (20) in a manner that allows pivoting, a second suspension mounting comprising a combination of a first spring strut (25A) and a first pendulum arm (26A) and a second spring strut (25B) and a second pendulum arm (26B) with which combinations the centre beam (14) of the chassis is spring-damped at a forward and rear end of the track support beam (20).

Abstract: A treaded traction device for model vehicles is provided. The treaded traction device includes a biasing assembly and a tensioning assembly. The biasing assembly includes a first bias support fixed relative to a vehicle hub and a second bias support fixed relative to a traction hub. The biasing assembly also includes a coil and a dampener attached to the first and second bias supports. The treaded traction device is biased to result in one end being lower than another end. The tensioning assembly includes an idler wheel and a first and second tension support. The tension supports may be rotated to move the idler wheel, releasing tension on a surrounding tread. When the tension is released, the surrounding tread may be removed or replaced.

Abstract: A rail brace system is designed for use with a snowmobile monorail. The rail brace system includes a brace having a first end, a second end, a length extending from the first end to the second end, a top side, a bottom side, a height extending from the top side to the bottom side, an inner surface, an outer surface, and a width extending between the inner surface and the outer surface. The inner surface is shaped complementary to a first side of a monorail of a snowmobile. The brace includes an opening extending through the width. The brace extends towards the second end to provide support to the monorail. The opening is positioned along the length of the brace to be concentric to a suspension mount hole of the monorail and the outer surface around the opening is configured to provide a mounting surface for a suspension arm.

Abstract: An agricultural machine is disclosed. The agricultural machine includes a frame including a first axle on a first side of the frame and a second axle on a second side of the frame; and a bogie axle pivotably mounted on each of the first and second axles of the frame. Each bogie axle includes a body with a front axle disposed at a front end of the body and a rear axle disposed at a rear end of the body. A front tire is mounted on the front axle of each bogie axle and a rear tire is mounted on the rear axle of each bogie axle. The front tire is a different size than the rear tire.

Abstract: A snowmobile rear suspension is shown comprised of a linear force element (LFE) positioned outside the envelope of the snowmobile endless track. The LFE is attached at one end to the frame and at the other end to a bell crank. The bell crank is operatively connected to the slide rails, and carrier rollers extend from the bell crank. When the slide rails collapse in normal operation, the bell crank strokes the LFE, and the suspension is progressive throughout the range.

Abstract: A snowmobile rear suspension is shown comprised of a linear force element (LFE) positioned outside the envelope of the snowmobile endless track. The LFE is attached at one end to the frame and at the other end to a bell crank. The bell crank is operatively connected to the slide rails. When the slide rails collapse in normal operation, the bell crank strokes the LFE, and the suspension is progressive throughout the range.

Abstract: A vehicle, having a main body is equipped to be fitted mechanically with devices to form a wheeled vehicle, or with devices to form a crawler vehicle. The main body having of the vehicle houses the common components utilized in both configurations such as the engine and the gear box of the vehicle.

Abstract: A snowmobile rear suspension is shown comprised of a linear force element (LFE) positioned outside the envelope of the snowmobile endless track. The snowmobile frame includes a chassis mounted to a tunnel, where the chassis includes a central mounting bracket. The LFE is attached at one end to the bracket and at the other end to a bell crank. The bell crank is operatively connected to the slide rails. When the slide rails collapse in normal operation, the bell crank strokes the LFE, and the suspension is progressive throughout the range.

Abstract: A trailer that includes a belts that each encompass a front wheel and a rear wheel and have a ground engaging surface and a wheel engaging surface, the wheel engaging surface having lugs thereon for mating with the apertures in the front wheel and the rear wheel such that when the at least one of the front wheel or the rear wheel rotates, the belt is positively driven and at least one belt tensioning system for maintaining tension on the plurality of belts, the at least one belt tensioning system includes a track tension cylinder operatively mounted between an axle of the at least one of the front wheel or the rear wheel and the main frame, wherein the track tension cylinder maintains tension on the belt by moving the axle of the at least one of the front wheel or the rear wheel in a horizontal.

Abstract: A military vehicle, e.g., tank, that includes a turret, a gun mounted on the turret, a plurality of belts, wherein each of the plurality of belts encompass a front wheel and a rear wheel to provide a positive belt drive system for rotating the belt, at least one suspension system for absorbing load stresses, each suspension system having a suspension cylinder that is operatively and pivotably mounted to a military vehicle frame pivot on a main frame of the military vehicle, at least one belt tensioning system for maintaining tension on the plurality of belts, by moving the axle of the at least one of the front wheel or the rear wheel in a horizontal direction, and at least one electric drive system that includes electric drive motors for rotation of the at least one of the front wheel and the rear wheel and braking.

Abstract: A small loader has a central body that is formed as a unitary frame that has spaced apart side walls. The body is supported on drive and support units that are independently assembled, and have mounting plates that bolt to the exterior of the respective side walls of the body when the loader is to be assembled. The mounting plates support a framework for mounting spaced rotatable members, as shown members that mount a drive track for propelling and supporting the body. In one form a separate track drive sprocket is positioned above a slidably mounted track idler that creates a tension in the drive track.

Abstract: A snowmobile suspension that provides a substantially constant motion-ration (i.e. reduced falling rate) over the entire suspension stroke of the suspension system. The suspension system includes a suspension assembly that includes a lower arm assembly, a suspension arm, and a shock absorber. The lower arm assembly pivotally interconnects the lower portion of the suspension arm and the lower end of the shock absorber to the slide frame at a location relative to the chassis and within the endless track. The upper portion of the suspension arm and the upper end of the shock absorber pivot independently from each other, and the upper portion of the suspension arm is positioned lower and forward of the upper end of the shock absorber. The upper end of the shock absorber is positioned relative to the chassis and within the endless track.

Abstract: An adjustable rear suspension system for a tracked vehicle comprises a slide frame for guiding a portion of the endless track, the slide frame having a pair of substantially parallel slide rails, the slide rails defining a longitudinal direction. The rear suspension system further comprises at least one spring-like member for urging the slide frame away from the chassis. A front suspension arm assembly has an upper end pivotally connected to the chassis and a lower end pivotally connected to the slide frame. A rear suspension arm assembly has ail upper arm pivotally connected to the chassis and a lower end connected to at least one block capable of limited displacement in the longitudinal direction between a front stopper and a rear stopper. The rear suspension system further includes a rocker arm having an upper end connected to at least one block and a lower end pivotally connected to the slide frame.

Abstract: In a snowmobile track suspension, the slide frame is supported upon downwardly and rearwardly angled front and rear suspension arm assemblies. The suspension arm assemblies are of similar construction, length, and orientation, having upper ends connected to fixed pivots in the snowmobile chassis and lower ends pivoted to the slide frame. The lower end of the rear suspension arm assembly has a pivot mount that is movable longitudinally of the slide frame. Movement in the forwards direction being blocked by an abutment which ensures that during suspension travel the front end of the slide frame cannot move higher than the rear end thereof.