A quick release lock turnbuckle includes a socket slideable axially over a turnbuckle connecting between two threaded rods at a desired end-to-end spacing. The socket has a multi-sided interior cross section engaging a multi-sided exterior cross section of the turnbuckle, and also engaging a radially extending feature on one of the threaded rods to prevent rotation of the turnbuckle in the locked position. The socket is slideable axially off the turnbuckle to allow rotation of the turnbuckle in the unlocked position to change the desired end-to-end spacing between the two threaded rods.

An electrically actuated mulch control lever includes an upper plate and a lower plate pivotably mounted together on a top surface of a mower deck. A compression spring is retained between the upper plate and the lower plate urging the upper plate and the lower plate to pivot together. An electric linear actuator is connected to one of the plates, and a mulch gate hinge is attached to the other plate.

Outdoor power equipment includes a frame, a power head, a transmission, a pair of rear drive wheels, and a wheel height adjustment mechanism. The power head is coupled to the frame. The transmission is coupled to the frame and operatively coupled to the power head. The transmission includes a drive rotatable member configured to rotate about a first axis. The pair of rear drive wheels are coupled at respective ends of a rear drive axle so that the rear drive axle, and the pair of rear drive wheels coupled thereto, rotate about a second axis different than the first axis. The wheel height adjustment mechanism includes a first bell crank pivotally coupled to the frame about the first axis. A first end of the first bell crank is coupled to the rear drive axle.

An outdoor power equipment having sitting configuration and standing configuration is presented herein. The outdoor power equipment can be transformed from the sitting configuration to the standing configuration and vice versa, allowing an operator to use the outdoor power equipment in either a sitting position or standing position. The sitting position can place the operator at least in part forward of a drive axis of the outdoor power equipment, whereas the standing position can place the operator at least in part coincident with or behind the drive axis. The outdoor power equipment can be electric powered in some aspects, with modular and replaceable battery packs.

Aspects relate to an autonomous ground working vehicle. The vehicle has a chassis, wheels coupled to the chassis, a motor housing coupled to the chassis, a tool motor, and a tool. The motor housing defines a motor cavity extending in an axial direction and has a first inner housing portion having a first helical thread about the motor cavity and a second inner housing portion having a second helical thread about the motor cavity that engages the first helical thread. The first inner housing portion has a motor mounting surface and is axially translatable relative to the chassis and rotatably fixed relative to the chassis. The second inner housing portion is rotatable relative to the chassis and axially fixed relative to the chassis. The tool motor is fixed to the motor mounting surface and has an output shaft extending in a first direction. The tool is fixed to the output shaft.

This specification describes improvements to cutting blades and a cutting blade assembly. In some forms the cutting blade includes an upturn with an upturn radial angle which is non-parallel to a reference axis.

A work machine comprises, a drive source, a working unit that includes a rotary member rotated by the drive source and performs a predetermined work by rotation of the rotary member, and a control unit that controls the drive source so that output of the rotary member partially takes different values in one rotation of the rotary member.

A working robot system includes a working robot, and a processor configured to set a working region in which the working robot performs work. The working robot includes: a machine including a traveling device configured to be able to autonomously travel; a working device configured to perform the work along a traveling route of the machine; a driving device configured to drive the traveling device and the working device; and a battery as a power source of the driving device. The processor sets a work boundary to define a preferential working region where the work can be finished, in view of work capacity of the working robot, based on location information of a preferential location set by input.

Systems and techniques for compensating for the forces exerted on the autonomous lawn mower exerted by operating on a sloped region to be mowed are provided herein. In some examples, such systems and techniques may include receiving a coverage plan of an area to be mowed that includes a sloped region, determining, based on data for the one or more sensors, an orientation of the autonomous lawn mower and determining a slope force to compensate for the slope on which the autonomous lawn mower is operating. The slope force is then converted into signals to generate torques at one or more wheels to compensate for the slope.

An electric terrain working vehicle having a parking brake actuated in response to an operator presence system detecting the presence of, or the absence of, an operator in relation to the electric terrain working vehicle. The operator presence system may send a signal to a controller and the controller may command the actuation of the parking brake between an engaged stated and a disengaged state.