A stand-on aerator including a chassis, a pair of first wheels coupled to the chassis, wherein the first wheels are operable as drive wheels, a pair of second wheels coupled to the chassis, and an operator platform extending from a rear portion of the chassis. The stand-on aerator also has an aerator assembly coupled to the chassis, wherein the aerator assembly includes a plurality of reciprocating tines capable of extending from and retracting into the aerator assembly.

A ground aeration device comprising: an air supply connector for receiving pressurised air from a source; a supporting element for supporting a drill element for insertion into the ground and a pneumatic hammer for hammering the drill element into the ground; a first pneumatic means comprising a first actuating means for actuating the pneumatic hammer; and a second pneumatic means comprising a second actuating means for controlling supply of the pressurised air through the drill element.

A core recovery vehicle for recovering cores from turf which includes an elongated chassis having elongated sides and a front and a back. 1.sup.st and 2.sup.nd V-shaped wipers are carried on the chassis in a substantially horizontal orientation proximate to the front of the core recovery vehicle whereby the 1.sup.st and 2.sup.nd V-shaped wipers funnel cores from an open front to an apex opening of each V-shaped wiper; and 1.sup.st and 2.sup.nd elevators substantially aligned respectively with the apex opening of the 1.sup.st and 2.sup.nd V-shaped wipers, the 1.sup.st and 2.sup.nd elevators are substantially aligned with and have substantially all major parts thereof coincident respectively with 1.sup.st and 2.sup.nd substantially vertical virtual parallel spaced apart planes substantially aligned with the major axis of the chassis.

A core recovery vehicle for recovering cores from turf which includes an elongated chassis having elongated sides and a front and a back. 1.sup.st and 2.sup.nd V-shaped wipers are carried on the chassis in a substantially horizontal orientation proximate to the front of the core recovery vehicle whereby the 1.sup.st and 2.sup.nd V-shaped wipers funnel cores from an open front to an apex opening of each V-shaped wiper; and 1.sup.st and 2.sup.nd elevators substantially aligned respectively with the apex opening of the 1.sup.st and 2.sup.nd V-shaped wipers, the 1.sup.st and 2.sup.nd elevators are substantially aligned with and have substantially all major parts thereof coincident respectively with 1.sup.st and 2.sup.nd substantially vertical virtual parallel spaced apart planes substantially aligned with the major axis of the chassis.

An integrated aeration spreader for use with an aerator includes a mounting plate, a mounting block rigidly coupled to the mounting plate, a support arm rotatably coupled to the mounting plate, a support block rigidly coupled to the support arm, wherein the mounting block is located a first distance from the support block, a shaft rotatably coupled to the support block, wherein the shaft extends through the mounting block, a first nut threaded on the shaft, wherein the first nut is located a second distance from the support block and the second distance is less than the first distance, a first spring having a first end engaged with the first nut and a second end engaged with the mounting block, a second nut threaded on the shaft, wherein the second nut is located a third distance from the support block and the third distance is greater than the first distance, and a second spring having a first end engaged with the second nut and a second end engaged with the mounting block. The integrated aeration spreader combines a spike-type aeration and sand spreader that fills the aeration holes in a single pass of a vehicle, after having a top dresser vehicle lay sand down over the ground and grass-covered surface to be aerated.

A stand-on aerator includes a chassis, an operator platform extending from a rear portion of the chassis, an aerator assembly coupled to the chassis and having a plurality of reciprocating tines configured to extend from and retract into the aerator assembly, and an object detection sensor. At least a portion of the plurality of reciprocating tines are configured to retract in response to the object detection sensor detecting an object in a path of the aerator assembly.

A turf aerator includes a frame, a tine crank having a clearing end with threads, a plurality of tines coupled to the tine crank, and a coupling for fastening the tine crank clearing end to the frame. The coupling includes a collar area for receiving the tine crank clearing end, an anchor plate for selectively fastening to the frame, and an opening sized for accessing the threads of the tine crank clearing end. The turf aerator further includes an actuator threaded complementary to the threads of the tine crank clearing end for selectively moving the coupling from an extended position relative to the tine crank to a retracted position relative to the tine crank.

A turf aerator includes a tine assembly and an input mechanism. The tine assembly includes multiple tines, a retractor plate for positioning the plurality of tines, and a linkage for selectively moving the retractor plate and the plurality of tines between an operating position and a retracted position. The input mechanism coupled to the linkage, the input mechanism operable to activate the linkage to move the retractor plate and the plurality of tines between the operating position and the retracted position.

A drivable soil working device including a machine frame, a drive, at least one support arm which can be moved up and down by the drive and which is mounted on the machine frame in a pivotal manner, and at least one insertion tool which can be pivoted relative to the support arm about a first pivot axis and which can be moved up and down by means of the support arm. The insertion tool can be inserted into the soil and withdrawn.

An agricultural tillage implement has a vertical tillage section and an aerating section behind the vertical tillage section, each extending substantially perpendicular to the pull direction of the implement. Individual vertical tillage elements, such as disc blades, can be indexed with individual rotary tine assemblies of the aerator section so that discrete holes formed by the aerator section are positioned between substantially continuous slits formed by the vertical tillage section. A ground deposit system is provided for depositing a component on the ground and may be configured for conducting and depositing a granular component, such as seeds, fertilizers, minerals or the like, or liquid components, such as liquid manure.