The present invention relates to an electrically driven single-axle tractor for coupling with, and powering of, various pieces of equipment, comprising: a frame; a drive axle, connected to the tractor frame, provided with one pair of wheels; a primary electric motor coupled to the drive axle; at least a secondary electric motor coupled to an equipment drive shaft for releasable coupling with a piece of equipment; and, at least one electrical energy source, as power supply of the primary and secondary electric motor. The invention also provides an assembly of such a tractor and a piece of equipment as well as a method for driving such a tractor.

A total task vehicle (TTV) may operate indoors to move a variety of different types of materials and accomplish a variety of different types of tasks, using tools and accessories powered by/connected to the TTV. One or more high power density (HD) battery packs may provide both 240V DC to 380V DC and 120V AC power to propel the TTV and also to function as a generator for tools and accessories attached to the TTV. A high torque/high speed convertible drive system may allow the TTV to operate in a ride-on mode, a walk-behind mode, providing for flexibility and adaptability in use of the TTV.

An anti-rotation apparatus usable with power driven equipment. The power driven equipment may include a deck, a deck bracket connected to the deck, and a handle. The handle may be pivotally mounted to the deck bracket and capable of rotating in a first direction and a second direction opposite the first direction. The anti-rotation pin has a first portion configured to prevent rotation of the handle in the first rotational direction; and a second portion configured to prevent rotation of the handle in a second rotational direction opposite the first rotational direction.

A tractor has a base for supporting a motive power source, left and right driven wheels, and left and right transmissions for the respective left and right wheels; a handle structure coupled to the base for grasping by an operator from behind the tractor; a drive system for driving each of the left and right transmissions with motive power from the motive power source; wherein the left and right transmissions are hydrostatic transmissions, further having a speed regulator control lever on each transmission that allows seamless control of the transmission from reverse speed through neutral into forward speed; and a transmission control coupled to each speed regulator control lever; further wherein there is a longitudinally disposed space between the left and right transmissions, and a power take off shaft is disposed in the space extending anteriorly and driven by the motive power source for powering a powered attachment arranged to be attached at the anterior of the tractor, further including a shaft extension of said power take off shaft extending posteriorly for driving a rear power take off for powering a rear mounted powered attachment.

A steerable, self-propelled cart for safely delivering heavy loads, such as concrete, within job sites with unlevel, irregular, or sloped terrain. A cargo bucket is tiltable over front drive wheels for transporting and dumping cargo. Hydraulic drive motors driven by a hydraulic pump propel rear wheels at a selectable speed. Steering handlebars rotate a steering column that turns the rear wheels. A throttle cable extending from the handlebars controls the throttle setting by pivoting a throttle lever mounted on the hydraulic pump. Limiting linkages extend from flanges on an anchor bracket secured to the steering column to a bridge on the throttle lever. As the steering column rotates, the limit linkages are wound partially about it, pivoting the throttle lever by pulling on the bridge, reducing pump speed. Heavy steering displacements will retract the throttle lever to reduce cart speed notwithstanding the previous speed setting chosen by the operator via the cable.

A total task vehicle (TTV) may operate indoors to move a variety of different types of materials and accomplish a variety of different types of tasks, using tools and accessories powered by/connected to the TTV. One or more high power density (HD) battery packs may provide both 240V DC to 380V DC and 120V AC power to propel the TTV and also to function as a generator for tools and accessories attached to the TTV. A high torque/high speed convertible drive system may allow the TTV to operate in a ride-on mode, a walk-behind mode, providing for flexibility and adaptability in use of the TTV.

A work machine includes a machine frame, a prime mover supported by the machine frame, and wheels rotatably coupled to the machine frame and driven by the prime mover. The wheels are supported on a ground surface. The work machine further includes a steering assembly having a pivot frame pivotally coupled to the machine frame about a pivot axis. The steering assembly is pivotable about the pivot axis relative to the machine frame to turn the work machine. The steering assembly also includes a damping mechanism positioned between the pivot frame and the machine frame to inhibit oscillations.

A bi-directional overrunning clutch for transmitting torque to drive axle halves includes a clutch housing that attaches to an input gear, and hubs that attach to the axle halves. A pair of roll cages located within the housing adjacent to the hubs have rollers. The rollers wedge between the hubs and first tapered portions on the clutch housing when the roll cage is rotated forward relative to the housing, and between the hubs and second tapered portions on the clutch housing when the roll cage is rotated in the opposite direction. Springs hold the rollers engaged with recesses in the hubs, but let the rollers lift to permit relative rotation of the hubs and roll cages. Relative rotation between the roll cages is limited: when one roll cage is wedged, the other can move only as far as a free position midway between the first and second tapered portions.

A tractor has a base for supporting a motive power source, left and right driven wheels, and left and right transmissions for the respective left and right wheels; a handle structure coupled to the base for grasping by an operator from behind the tractor; a drive system for driving each of the left and right transmissions with motive power from the motive power source; wherein the left and right transmissions are hydrostatic transmissions, further having a speed regulator control lever on each transmission that allows seamless control of the transmission from reverse speed through neutral into forward speed; and a transmission control coupled to each speed regulator control lever; further wherein there is a longitudinally disposed space between the left and right transmissions, and a power take off shaft is disposed in the space extending anteriorly and driven by the motive power source for powering a powered attachment arranged to be attached at the anterior of the tractor, further including a shaft extension of said power take off shaft extending posteriorly for driving a rear power take off for powering a rear mounted powered attachment.

A control system for controlling engagement of a first and second transmission of an all-wheel drive (AWD) walk-behind power equipment unit such as a lawn mower. The control system may include a mechanical load balancer to split an input drive force vector into two output force vectors. These two forces act upon associated first and second connection elements coupled to the first and second transmissions, respectively. One transmission may include a resistance element selected to sequence engagement of the first and second transmissions so that both transmissions begin driving their respective wheels at or near the same time even when the wheels associated with one transmission are more heavily-loaded than the wheels associated with the other transmission.