A system for providing larger blades on a lawnmower, while at the same time allowing the lawnmower to be easily handled. This is accomplished while maintaining legal rpm speeds for the cutting blade.

A transmission comprising a shaft (6) made as a single piece or as at least two shaft sections (6A, 6B) on a common axis, a drive toothed wheel (5) mounted to rotate freely on said shaft (6), and an automatically clutching clutch mechanism (8) arranged between the drive wheel (5) and the shaft (6) or each of the shaft sections (6A, 6B), the or each clutch mechanism (8) comprising: a clutch plate (81) mounted to rotate freely on the associated shaft (6) or shaft section (6A, 6B); a part (82) that is carried by and constrained to rotate with the associated shaft (6) or shaft section (6A, 6B); and a brake of said clutch plate that acts continuously on the angular speed of said plate (81). The brake (83) of the at least one of the clutch plates (81) is threaded on the shaft (6) or the shaft section (6A, 6B) carrying said plate (81).

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.

The present invention is a system for providing larger blades on a lawnmower, while at the same time allowing the lawnmower to be easily handled. This is accomplished while maintaining legal rpm speeds for the cutting blade.

A gardening appliance has a traction drive system with a clutch, an electric motor drive system and a user-triggerable signalling device. The electric motor drive system effects forward rotation and backward rotation of the clutch. An operating method includes: a) in a user-triggered manner, operating the electric motor drive system in a running-down and/or braking operating mode to lower a motor rotational speed of the forward-rotating electric motor drive system; b) acquiring whether a back electromotive force caused by the electric motor drive system satisfies a standstill criterion, wherein the standstill criterion is characteristic of an attainment of a standstill state of the electric motor drive system; and c) when the standstill criterion is satisfied, operating the electric motor drive system in a backward-rotation operating mode to effect the backward rotation of the electric motor drive system for disengaging the clutch for freewheeling operation.

A transmission for a wheeled vehicle has a drive member, a rotatable driven member in permanent engagement with the drive member, a wheel drive shaft and, disposed between the wheel drive shaft and the driven member, a clutch mechanism. A part of the clutch mechanism which, in the deactivated state of the clutch mechanism, is disposed in a position close to the driven member, is, in the position, limited in its axial movement in the direction of a separation from the driven member in the reverse drive state of the driven member.

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.

Transmission housing (1) having a body (2) formed by two shells (2A, 2B) and comprising a rotary input shaft (4) and an output shaft (5), the rotary input shaft (4) comprising a driving end (6) and a threaded portion (7) and having mounted on it a rolling-element bearing (8) arranged between the threaded portion (7) and the driving end (6), said housing (1) creating, inside the enclosure (3), a station (12) for receiving the rolling-element bearing (8) and a station (13) for receiving the threaded portion (7). The housing (1) comprises a barrier (14) positioned between said stations (12, 13), this barrier (14) extending around said input shaft (4), creating a through-passage (15) for access for the input shaft (4) from one station (12) to the other (13), this barrier (14) being formed in at least two portions (16, 17), each barrier portion (16, 17) being produced in a single piece with the associated shell (2A, 2B), at least one of the barrier portions (16, 17) being shaped so as to create at least one deflector (161) formed at least partially by an inclined surface having a slope that descends from the body (2) of the housing (1) towards the input shaft (4), when the input shaft (4) is positioned vertically with the rolling-element bearing (8) extending above the threaded portion (7) of the input shaft (4).

Outdoor power equipment includes a frame, a power head, a rear wheel, a front wheel coupled to a front wheel bracket, and a wheel height adjustment mechanism. The wheel height adjustment mechanism includes a rear bell crank pivotably coupled between the frame and the rear wheel, a front bell crank pivotably coupled between the frame and the front wheel bracket, a linkage extending between the rear bell crank and the front bell crank, and a front pivoting linkage coupled between the frame and the front wheel bracket.

A power tool is provided including a housing, a brushless direct-current (BLDC) motor, and a gear assembly. The motor includes a stator having an inner stator, a rotor shaft extending along a center axis and including a first bearing and a second bearing; an outer rotor, a first end cap, and a second end cap. The first end cap includes a radial back plate having a center opening in the radial back plate through which the rotor shaft extends and pins projecting around the rotor shaft and parallel to the rotor shaft. The gear assembly is mounted on the first end cap and includes planetary gears supported by the pins in engagement with the rotor shaft.