Systems and apparatuses include a walk behind lawn mower including a frame including a handle, an engine mounted to the frame, a transmission coupling the engine to a plurality of wheels, and a user interface coupled to the transmission and including a static link rigidly coupled to the handle, a forward link coupled to a forward lever and to the static link, a reverse link coupled to a reverse lever and to the static link, and a joining link coupled between the forward link and the reverse link. The user interface is actuatable between a forward configuration and a reverse configuration using a single hand.

A walk-behind mower includes a deck. The deck includes a rear portion, a power source attached to the deck, a plurality of wheels attached to the deck, a handle attached to the rear portion of the deck. Structure is included to enable a distal end of the handle to be selectively located in a plurality of positions. The handle extends upward and rearward from the rear portion of the deck.

To enable the rotational speed of a cutter blade to be set variably and to allow the operation therefor to be performed with ease and accuracy, multiple switches (74, 76) for setting the rotational speed of the cutter blade electric motor (6) to mutually different rotational speeds, and multiple operation buttons (78, 80) provided for the respective switches (74, 76) are provided on a handle (20), wherein the operation buttons (78, 80) have operation parts (78A, 80A) provided with mutually different sizes.

A walk power mower comprises a housing having an upwardly and rearwardly extending handle that is gripped by an operator. A load cell is responsive to the force applied by the operator to the handle during a grass mowing operation. Input from the load cell is used by a control system to vary the ground speed of the mower in accordance with the sensed operator applied force through control of an electric traction drive motor.

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 self-propelled machine includes a drive motor, a handle having two grips, an electromechanical converting device, and a speed adjusting element configured to move relative to the handle to adjust a rotational speed of the drive motor and configured to be operated by a user when the user holds one of the two grips with a single hand. The speed adjusting element is disposed between the two grips. The electromechanical converting device is configured to convert a positional change of the speed adjusting element into an electrical signal for adjusting the rotational speed of the drive motor. The speed adjusting element is movable between a first position and a second position. The rotational speed of the drive motor when the speed adjusting element is in the first position is greater than the rotational speed of the drive motor when the speed adjusting element is in the second position.

A dual handle speed adjustment device includes left and right handles, a link and a slider. The left and right handles each have an actuating end, an operating end and a handle hinge as a pivot axis. The slider has a first connection end connected to the actuating ends of the left and right handles, a second connection end connected to a speed control device, and a part between the first and second connection ends hinged to one end of the link, which has the other end thereof provided with a link rotation axis. The left and right handles independently drive the slider to move when they are turned. The invention can realize the separate operation of two speed adjusting handles.

A walk-behind working machine. The walk-behind working machine includes a body including a walking assembly and a drive assembly for driving the walking assembly; a handle device including a grip for a user to hold; and a connecting rod assembly for connecting the body to the handle device. The walk-behind working machine further includes a display capable of displaying information related to the walk-behind working machine. In this manner, it is convenient for the user to acquire the work information of a working machine, thereby improving the convenience of use of the user.

A control system for a ground working vehicle. The control system may include a handle assembly including a handle member extending upwardly and rearwardly from a chassis of the vehicle. The control system may also include a speed control apparatus including a control grip operably connected to, and translatable along, the handle member. Translation of the control grip may activate a transmission to move the chassis in the forward direction when the control grip is translated downwardly along the handle member towards the chassis. Further, the control system may include a lockout apparatus movably attached to a handle member. The lockout apparatus may be adapted to selectively and physically restrict movement of the control grip relative to the handle member.

Each zero turning radius mower steering lever module includes a one-piece plastic housing independently mounted on a grass mowing machine frame member. A central passage extends through each housing, and a steering arm bracket may be positioned in the central passage and pivotably mounted on a horizontal pivot axis. A steering arm may be attached to an upper end of the steering arm bracket, and a hydrostatic transmission linkage and a damper linkage attached to a lower end of the bracket.