A walk power mower having a cutting deck supported upon the ground by a front and rear wheel(s). The mower includes a traction drive system incorporating a bidirectional transmission adapted to propel the mower alternatively in both forward and reverse directions. In some embodiments, the mower may include a single bidirectional transmission (e.g., powering only rear wheel(s) or only front wheel(s) of the mower), while in other embodiments, two bidirectional transmissions may be provided to power both the front and the rear wheel(s). In other embodiments, the mower may include a bidirectional transmission powering the rear wheel(s), while the front wheel(s) may be attached to the deck via a caster assembly.

A method operates a hand-guided working apparatus having a movable working tool installation, a shaft, and a drive motor system. The shaft is designed for moving the working tool installation. The drive motor system is designed for driving the shaft. The working tool installation, the shaft, and the drive motor system at least in part form part of a system capable of rotational oscillation. A controllable oscillation damping installation is designed for damping and/or reducing an excitation of at least one oscillation of the system capable of rotational oscillation and/or excitable by the system capable of rotational oscillation. The method includes: operating the drive motor system to drive the shaft for moving the working tool installation; and controlling the oscillation damping installation during operation such that the oscillation is at least damped and/or an excitation of the oscillation is reduced.

The lawn mowing device comprises a mower and a controller. The lawn mowing device may be adapted to be operated by a user from a stationary position. Movements of the mower may be controlled from the stationary position using the controller. The mower may comprise a first engine for rotating a blade located under a deck of the mower and a second engine for propelling the mower forward. The controller may comprise a control bracket coupled to the top of the deck and a telescoping shaft that is coupled to the top of the control bracket via a universal joint. The user may control the movements of the mower by manipulating a distal end of the telescoping shaft.

This motor-integrated transmission device is provided with: a motor provided with an output shaft; a gear train; and a case. A breather part is provided which allows communication between an internal space of the motor-integrated transmission device and the outside. A case internal space and a motor internal space communicate with each other through a connection flow path provided in a different place to an insertion part of the case. The case internal space and the motor internal space communicate with the breather part.

A transmission for a lawn mower, for transmitting an output of a drive source to a driving wheel, the transmission including a speed-change transmission device and a power transmission device movably coupled to the speed-change transmission device. The power transmission device includes a first power transmission device coupled to the speed-change transmission device and a second power transmission device to which the driving wheel is coupled, and the first power transmission device and the second power transmission device are movably coupled to each other.

The disclosed subject matter is directed to an electric lawn machine and method for use. The machine can include a housing and a tool, such as a lawnmower blade. A front pair of drive wheels, rear pair of drive wheels, and a storage surface/wheels can be connected to the housing. The housing can be configured to be placed upon a ground surface in two different positions: a use position in which the front pair of drive wheels and the rear pair of drive wheels contact the ground surface; and, a storage position in which the rear pair of drive wheels and the storage surface/wheel(s) contact the ground surface. A handle can be provided that is moveable between a use position, storage position, and an intermediate position in which the machine can be pulled/pushed around into and out of storage by the handle.

An electric working machine includes: a motor; a semiconductor element that is provided in a current path to the motor and completes or interrupts the current path; a circuit board on which the semiconductor element is mounted, a control circuit that turns on and off the semiconductor element to control energization to the motor being assembled to the circuit board; and a heat sink for dissipating heat from the semiconductor element. The semiconductor element is attached to the heat sink via a metal-based board.

A transmission control system and method for a lawnmower having a battery and an electric drive transmission that can include a propulsion motor and a propulsion motor driver. The control system can include a clutch lever, a speed lever, a cable connected to the clutch lever and the speed lever, a hall sensor in electrical communication with the propulsion motor driver, and a clutch arm connected to the cable and configured to actuate the hall sensor to change a speed of the electric transmission.

A small push-type lawn mower that can be converted into a stand-on riding mower. The mower includes a platform at the rear of the mower deck, and a handle assembly that can be pivoted forwardly making room for a user to step onto the platform. The handle assembly includes controls that drive electric motors that power the rear wheels allowing the user to ride the mower. The handle assembly can be pivoted rearwardly so that the user can access and grab the handle assembly and push the mower while walking behind.

A garden tool, including a main body, a walking wheel mounted on the main body, a self-propelled motor for driving the walking wheel, and a control panel disposed on the main body. The control panel includes a self-propelled control assembly. The self-propelled control assembly includes a self-propelled start paddle and a speed regulating button. Pressing the self-propelled start paddle activates self-propelled operation of the garden tool. The self-propelled start paddle can be released for a short time and the speed regulating button can be adjusted within the short time. The self-propelled start paddle can be re-pressed within the short time and after the speed regulating button is adjusted, and the garden tool maintains the self-propelled operation.