A mechanical device is presented to mechanically remove weeds in a lawn instead of chemical herbicides. The inventive device utilizes a motor driven horizontal spindle with a large number of closely spaced strings of equal length are attached turning at high speed which do the cutting. The vertically rotating strings selectively defoliates any vegetation that has lateral shoots or broad leaves. Turf grasses have narrow leaves and minimal lateral growth and so allow the rotating strings to pass through with little resistance like a comb going through hair and causes much less damage to the grass leaves. The horizontal spindle can be as long as desired covering a wide path through the lawn as long as the motor has enough power to handle the workload.

An aerating device includes a frame, moving means arranged on the frame for moving the aerating device in a direction of movement over a ground surface for working, a drive, a rotor shaft provided with a plurality of knives, where the rotor shaft is arranged bearing-mounted between the frame and the drive and is operatively coupled to the drive for rotating the rotor shaft, and where the knives are inserted successively into the around surface, and where during uncoupling of the rotor shaft and the drive the rotor shaft is movable in a direction away from the drive such that the rotor shaft lies at a distance from the drive.

A soil aeration apparatus can include an aeration rotor comprising at least one set of aeration tines configured for movement in a planetary motion about an axis. The apparatus can further include the aeration rotor being configured to remove soil plugs from a ground surface and break the soil plugs into soil particles when the aeration rotor is rotated.

A walk aerator comprises a housing supported by a plurality of wheels that include a pair of drive wheels. The drive wheels are pivotally mounted to the housing to permit the housing to move between operational and transport positions thereof. A control is used to so move the housing with the control having a hand grip whose height above the ground is easily adjustable to accommodate users of different effective heights. A foot guard maintains a relatively constant disposition relative to the ground whether the housing is in its operational or transport position. The housing of the aerator has a vent system and an air gap relative to a prime mover deck which cool a traction drive system contained within the housing.

A towable element for a lawnmower, the towable element includes a carriage defining a work tool receiving area; an engagement feature coupled to the carriage, wherein the engagement feature removably interfaces with a complementary engagement feature of the lawnmower to selectively couple the towable element with the lawnmower; and a work tool removably disposed at the work tool receiving area, wherein the work tool acts on an underlying ground surface below the towable element.

A method of stacking dethatchers includes pivoting an upper portion of a handle on a first dethatcher toward a front end of a frame on the first dethatcher, upon pivoting the upper portion of the handle toward the front end of the frame, exposing a rear support point defined by a lower portion of the handle, and stacking a second dethatcher on the first dethatcher so that the second dethatcher is supported on the rear support point defined by the lower portion of the handle and a front support point defined by the upper portion of the handle.

Tine assemblies (100a, 100b, 104) are secured by a single bolt (126) extending diametrically through each tine (120) located in a cavity (112) of a tine plate (110). An outer tine assembly (104) is connected to a sleeve (116) rotatably mounted on independently rotatable shafts (102) to which inner tine assemblies (100a, 100b) are connected. A tine cover (50) removably closes an opening (40) in the top plate (28) and in which weights (70) are removably received over the tine assemblies (100a, 100b, 104). Transport wheels (134) are moveable by pivoting a stop plate (140) to position an upper pivot axis (150a) of an abutment bar (150) ahead of or behind the stop axis (142) and lower pivot axis (150b). A stop (146) positioned on the stop plate (140) without the use of tools adjusts the depth of the tine assemblies (100a, 100b, 104).

The invention relates to cutting devices with flexible blades for use on agricultural machines. The cutting device for agricultural machines includes a rotatable shaft (1) with at least two sets of grooves (5) on its outer surface, each of said sets being oriented along the shaft axis. Each groove (5) in each set houses the midsection of a cutting wire (6), meanwhile clamping rods are installed along the outer surface of the shaft (1) over each set of cutting wires (6) where the grooves (5) are located, the ends of each clamping rod (4) being fixed in the slots made at the shaft ends. Along its length, the shaft is equipped with a number of clamping elements capable of pressing the clamping rods (4) against the surface of the shaft and securing the midsection of a cutting wire in the groove (5) of the shaft.

A turf aerator has a chassis and a motor mounted on the chassis between a front end and a rear end of the chassis and between a first side and a second side of the chassis. A first shaft is rotatably driven by the motor, a first inner tine assembly mounted to a first portion of the first shaft, a second inner tine assembly mounted on the first shaft, and a first outer tine assembly mounted to a second portion of the first shaft. A tine cover is removably secured to the chassis over at least one of the first inner tine assembly and the first outer tine assembly.

A vehicle combining the attributes of a tractor and a utility vehicle includes a three point linkage and other locations to which a plurality of attachments for performing grooming or working operations on a ground or turf surface may be couple. The vehicle includes a front mounted engine, a mid-mounted operator compartment and a rear mounted bed or box. A PTO shaft and/or a hydraulic power system of the vehicle power attachments that require power. A control system and a visual display and data entry device linked thereto are provided for allowing an authorized person to setup, store and thereafter use an operational profile for each attachment that is to be coupled to the vehicle. In a rate dependent attachment, the control system maintains the ground speed and the attachment implement in a fixed ratio. A down/up control is used to signal the start and end of an operational sequence to the control system.