Abstract: A drive unit includes a drive pulley connected to a drive source, a driven pulley connected to a target to be moved, at least one relay pulley for transmitting power from the drive pulley to the driven pulley, a plurality of belts including a first belt entrained around the drive pulley and the relay pulley, and a second belt entrained around the relay pulley and the driven pulley, a first tension application device, and a second tension application device. The first tension application device contacts the first belt to provide tension thereto. The second tension application device contacts the second belt to provide tension thereto. A cyclic speed variation component of the first belt in one rotation period transmitted to the driven pulley via the relay pulley and a speed variation component of the second belt in one rotation period transmitted to the driven pulley counteract each other.

Abstract: A vehicle with a transmission having a crankshaft and an output shaft. A clutch located between the output shaft and a drive wheel is engaged and disengaged according to a rotational speed of the output shaft. An idle speed control device performs idle speed control to adjust an idle rotational speed of an engine. An electronic control unit (ECU) suppresses or stops the idle speed control when the clutch is engaged, or when an abnormality in the transmission is detected.

Abstract: A wheelchair including a seat body and at least one wheel module disposed at a bottom of the seat body is provided. The wheel module includes a motor, at least one wheel, and a transmission unit coupled between the motor and the wheel. The transmission unit has at least one one-way bearing. The motor outputs a first rotating moment and a second rotating moment with opposite directions to the transmission unit. The one-way bearing transmits one of the first rotating moment and the second rotating moment to the wheel to drive the wheel to roll, such that the seat body is in linear motion, or so the wheel module rotates relative to the seat body in the directions of the first or the second rotating moments. The shafts of the first and the second rotating moments are perpendicular to the rotating shaft of the wheel.

Abstract: The invention is a combination drive and suspension system that includes an upper drive assembly and a lower drive assembly pivotally connected. The pivoting drive system provides improved ground clearance for a farm vehicle capable of carrying a large quantity of field application material.

Abstract: The invention is a combination drive and suspension system that includes an upper drive assembly and a lower drive assembly pivotally connected. The pivoting drive system provides improved ground clearance for a farm vehicle capable of carrying a large quantity of field application material.

Abstract: A speed reduction device of a vehicle for reducing the rotation of drive wheels includes a casing mounted on a vehicle frame, first and second drive axles rotatably mounted on the casing and connected to first and second drive shafts, respectively, and a driven sprocket wheel and a brake disc for braking the first and second drive axles are mounted on the first drive axle. The second drive axle is detachably joined to the first drive axle.

Abstract: To enhance assembly and maintenance of a rear wheel suspension. Rear wheel axles extend to the left and right from a final case supported on a rear portion of a vehicle body frame, and rear wheels are independently suspended from left and right portions of a vehicle body. On the left and right sides of the final case, the rear wheel axles are connected to a left-side joint and a right-side joint, and the left-side joint is detachably attached to a side surface of the final case by a separate holder fitted with a driven sprocket meshed with a chain. A joint portion shaft of the right-side joint is borne on the final case through a bearing, a brake disk is attached thereto, and the joint portion shafts are spline connected. In assembling or disassembling, the separate holder can be attached and detached through petal-like cutouts formed in the driven sprocket.

Abstract: The invention is a combination drive and suspension system that includes an upper drive assembly and a lower drive assembly pivotally connected. The pivoting drive system provides improved ground clearance for a farm vehicle capable of carrying a large quantity of field application material.

Abstract: In the rough-terrain traveling vehicle in which rear wheels as left and right wheels are independently suspended via left and right lower arms respectively, and an anti-roll bar device is extended between the left and right lower arms, the left and right rear wheels are driven from an engine side via a chain, and the anti-roll bar device is disposed so as to extend across the inside of the circle of the chain.

Abstract: A drive power transmitting system for a rough-terrain traveling vehicle (10) includes a pair of drive shafts (177, 178) for transmitting drive power from a power unit (18) to respective right and left independently suspended rear wheels (21, 21). Right and left constant velocity joints (184, 184) are provided on respective opposed ends of the drive shafts. A bearing unit (176) is provided on each constant velocity joint for connecting the same to a final gearcase (133) provided on a vehicle body so that the left and right constant velocity joints are releasably connected to the final gearcase individually.

Abstract: A chain link for a silent-type endless chain comprising a plate member having opposing first and second surfaces defining two apertures therethrough and two toes joined at a root. Each toe has an asymmetrical profile defined by a first flank joined to a second flank at a crest wherein the first flanks have a high-pressure involute angle and the second flanks have a low-pressure involute angle that is distinct from the high-pressure involute angle. The first flanks are oriented in a first direction and configured to engage with a plurality of asymmetrical sprocket teeth to transmit power in a first direction. The second flanks are oriented in a second direction distinct from the first and configured to engage with the plurality of asymmetrical sprocket teeth to transmit power in a second direction.

Abstract: A high ground clearance drive assembly includes a drop box and an articulation drop box. The drop box is fixed to the vehicle frame and the articulation drop box pivots relative thereto as a suspension system is exercised. The articulation drop box is pivotable about a pivot pin which extends through both the articulation drop box and the drop box to provide an axial preload therebetween. A first chain interconnects an input sprocket on the input shaft and an intermediate sprocket assembly. A second chain interconnects a second intermediate sprocket and the output sprocket to drive an output shaft connected thereto. A hollow shaft supports the first and second intermediate sprockets about the pivot pin such that rotation of the articulation drop box relative the drop box is accommodated without additional complex structure.

Abstract: An independent suspension and drive system comprising a transverse power shaft mounted on a vehicle frame and having a differential connection with a power source; at least one pivot shaft mounted on the vehicle frame; at least one cantilevered swing- or trailing- or pivot arms mounted on each of the at least one pivot shafts; at least one drive wheel, one each mounted on each of the respective at least one pivot arms via respective axles; and at least one chain or belt or equivalent member operatively connecting power shaft driver sprockets to respective wheel driven sprockets; wherein the centerline of the power shaft is substantially coincident with the centerline of each of the at least one pivot shafts, and wherein the pivot shafts are independent of the power shaft.

Abstract: A working vehicle is provided which can be smoothly started with a large driving force, and uniformly conducts a various types of works even if a travel speed varies. A working machine such as a working pump, which is also driven by an engine for driving the vehicle, is mounted on the working vehicle. The power is transmitted from a crank shaft of the engine to wheels through a torque converter provided with a lock-up clutch and an automatic transmission. The crank shaft is also connected to a driving unit for driving the working pump through gears. A transmission ratio of the automatic transmission is set to a predetermined value corresponding with work modes J1-J6. In such a way, the work modes J1-J6 are set according to characteristics of the work, in which there exists a predetermined relationship between a work amount and a vehicle speed. Therefore, fertilizer, sand, and chemicals can be appropriately and uniformly spread through a changeover of the modes.

Abstract: A pulling or loading vehicle, particularly a tractor, with rear wheel or all-wheel drive has rear wheels mounted on wheel mounting (10) which are spaced from the vehicle tail. The rear wheel mounting (10) is substantially U-shaped and contains a drive means (15). There is a free space (1) between the rear wheels for coupling auxiliary means and units (17, 20, 22, 24, 27, 31, 33).