An outdoor device comprising: a first blade comprising a first blade opening at a proximal end; a second blade comprising a second blade opening at a proximal end; a first cam coin comprising a first cam coin opening; a second cam coin comprising a second cam coin opening; an output gear comprising an output gear opening; and an output shaft comprising a first portion and a second portion, the first portion wider than the respective openings, the second portion wider than the output gear opening, wherein the respective openings are aligned to form a cam assembly, and wherein the output shaft is positioned through the respective aligned openings such that the cam assembly is positioned at a perpendicular plane respective to the second portion and supported for rotation about an axis to rotate eccentrically with respect to the output shaft axis.

A trimmer includes a handle assembly, a power mechanism installed at one end of the handle assembly, and a blade assembly connected to the power mechanism. The power mechanism has a housing assembly, a motor received in the housing assembly, and a power transmission assembly mounted on the housing assembly. The motor is an external rotor motor with a diameter greater than or equal to 50 mm. The power transmission assembly has pinion coaxially sleeved on an output shaft of the motor and a big gear meshing with the small gear, and a transmission ratio of the small gear to the big gear is less than 6. By such arrangement, the trimmer can obtain the best output effect under a condition that the output power of the motor is unchanged.

A trimmer includes a handle assembly, a power mechanism installed at one end of the handle assembly, and a blade assembly connected to the power mechanism. The power mechanism has a housing assembly, a motor received in the housing assembly, and a power transmission assembly mounted on the housing assembly. The motor is an external rotor motor with a diameter greater than or equal to 50 mm. The power transmission assembly has pinion coaxially sleeved on an output shaft of the motor and a big gear meshing with the small gear, and a transmission ratio of the small gear to the big gear is less than 6. By such arrangement, the trimmer can obtain the best output effect under a condition that the output power of the motor is unchanged.

A motor module (100) for an electrically driven garden tool comprises: a brushless DC motor (102) having a motor drive shaft (104); and a gearbox having an output shaft (108), the gearbox configured to receive the motor drive shaft (104) from the brushless DC motor (102) and drive a rotary element of the electrically driven garden tool with the output shaft (108), wherein the gearbox having a gear reduction ratio of at least 2:1. An electrically driven garden tool comprises: a housing (602) comprising a receptacle for receiving a motor module (100); and a rotary element drivable with an electric motor, the rotary element comprises a receiving element having a keyed interface corresponding to the keyed surface (122) or structure on the output shaft (108) of the motor module (100). A grass compactor (900) comprises: mounting structure to attach the grass compactor (900) to a lawn mower (1000); an inlet (1104) for receiving cut grass from an underside of the lawn mower (1000); a channel (1206) for transporting cut grass from the inlet (1104) to a feed hopper (1400); and a compaction conveyor (1404) configured to receive cut grass from the feed hopper (1400), and to compact and convey cut grass along a length thereof and discharge compacted cut grass from the outlet (1210).

An electric trimmer has an electric motor and power source, a pair of blade plates, at least one of which is connected to an oscillator mechanism in the electric motor, and a pair of guard plates disposed one on each side of the at least one of the pair of blade plates, the guard plates hosting a matching radial or linear pattern of slots having a uniform spacing, a uniform slot width, the slots breaking out past at least one edge of the guard plates, the guard plates, in assembly, creating a gap space there between. One or more operators may insert branches having buds or flowers thereon through any one of the matching slots in the slot pattern, the branch oriented orthogonal to the blade set with the blade plates oscillating to harvest the buds or flowers within the gap space.

A robotic lawn mower includes a first wheel driven by a first electric wheel motor, a second wheel driven by a second electric wheel motor, a cutting implement driven by an electric cutting implement motor, a power system for powering the electric wheel motors and the electric cutting implement motor, and a controller configured to control operation of the electric wheel motors and the electric cutting implement motor to autonomously mow a yard. The power system includes multiple removable rechargeable battery modules and multiple receptacles, each receptacle configured to receive one of the battery modules.

An electric working machine capable of efficiently cooling components disposed inside, as well as simplifying assembling work and reducing man-hours and production cost. A motor, control board for controlling the motor, rod fixture secured to the front side of the motor, and air guiding partitioning member secured to the rear side of the motor form a motor assembly. The air guiding partitioning member includes a partitioning plate hermetically partitioning between air exhaust and intake ports provided with a predetermined interval longitudinally in the body casing. The partitioning plate has an air guiding window for delivering cooling air taken in from the air intake port to an opening for sucking air on the front side of the motor through a space between the motor and body casing. The control board is disposed on the rear side of the partitioning plate.

A cam member includes an intermediate disk, a first eccentric cam disposed on an upper surface of the intermediate disk and connected to a first blade and a second eccentric cam disposed on a lower surface of the intermediate disk and connected to a second blade. A center of gravity of the first eccentric is positioned in a first direction from a rotation axis of the cam member. A center of gravity of the second eccentric cam is positioned in a second direction opposite to the first direction from the rotation axis. A center of gravity of an upper half of the intermediate disk is positioned in the second direction from the rotation axis. A center of gravity of lower half of the intermediate disk is positioned in the first direction from the rotation axis.

A cam member includes an intermediate disk, a first eccentric cam disposed on an upper surface of the intermediate disk and connected to a first blade and a second eccentric cam disposed on a lower surface of the intermediate disk and connected to a second blade. A center of gravity of the first eccentric is positioned in a first direction from a rotation axis of the cam member. A center of gravity of the second eccentric cam is positioned in a second direction opposite to the first direction from the rotation axis. A center of gravity of an upper half of the intermediate disk is positioned in the second direction from the rotation axis. A center of gravity of lower half of the intermediate disk is positioned in the first direction from the rotation axis.

A hand-held electrical power tool includes a working device for performing working function of the hand-held electrical power tool, a power device including a motor for driving the working device, a power supplying unit for supplying power to the power device, and an operating device through which a user can operate. The operating device includes an operating handle and a speed regulating device arranged beside the operating handle. The speed regulating device includes a speed regulating switch and a speed regulating operating member connected to the speed regulating switch and driving the speed regulating switch. When the rotating speed of the motor increases from zero to the maximum, the rotating angle of the speed regulating operating member is 0-360 degrees.