Abstract: Rotor shaft for use in an aerating device for a ground, wherein the rotor shaft comprises at least one connecting disc which extends transversely of the axis of the rotor shaft and on which at least two knives are arranged, wherein each knife is provided with two knife connecting holes and is connected between the connecting disc and a connecting ring, wherein the connecting disc and the connecting ring are provided with knife connecting holes which coincide with the knife connecting holes of the knives, wherein bolts are arranged through the coinciding knife connecting holes in order to connect the connecting disc, the knives and the connecting ring, wherein the connecting ring is constructed from at least two ring sectors which together form the connecting ring.

Abstract: Rotor shaft for use in an aerating device for a ground, wherein the rotor shaft comprises at least one connecting disc which extends transversely of the axis of the rotor shaft and on which at least two knives are arranged, wherein each knife is provided with two knife connecting holes and is connected between the connecting disc and a connecting ring, wherein the connecting disc and the connecting ring are provided with knife connecting holes which coincide with the knife connecting holes of the knives, wherein bolts are arranged through the coinciding knife connecting holes in order to connect the connecting disc, the knives and the connecting ring, wherein the connecting ring is constructed from at least two ring sectors which together form the connecting ring.

Abstract: Rotor shaft (22) for use in an aerating device (1) for a ground, wherein the rotor shaft (22) comprises at least one connecting disc (4) which extends transversely of the axis of the rotor shaft (22) and on which at least two knives (3) are arranged, wherein each knife (3) is provided with two knife connecting holes (33a, 33b) and is connected between the connecting disc (4) and a connecting ring (6), wherein the connecting disc (4) and the connecting ring (6) are provided with knife connecting holes (44, 54) which coincide with the knife connecting holes (33a, 33b) of the knives (3), wherein bolts (74) are arranged through the coinciding knife connecting holes (33a, 33b) in order to connect the connecting disc (4), the knives (3) and the connecting ring (6), wherein the connecting ring (6) is constructed from at least two ring sectors which together form the connecting ring (6).

Abstract: 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.

Abstract: Aerating device (1) for a ground, comprising:—a frame (16);—moving means (11) arranged on the frame (16) for the purpose of moving the aerating device (1) in a direction of movement over a ground surface for working;—a drive (14);—a rotor shaft (2) provided with a plurality of knives (22), wherein the rotor shaft (2) is arranged bearing-mounted between the frame (16) and the drive (14), wherein the rotor shaft (2) is operatively coupled to the drive (14) for the purpose of rotating the rotor shaft (2), wherein the knives (22) are inserted successively into the ground surface, wherein during uncoupling of the rotor shaft (2) and the drive (14) the rotor shaft (2) is movable in a direction away from the drive (14) such that the rotor shaft (2) lies at a distance from the drive (14).

Abstract: Rotor shaft (22) for use in an aerating device (1) for a ground, wherein the rotor shaft (22) comprises at least one connecting disc (4) which extends transversely of the axis of the rotor shaft (22) and on which at least two knives (3) are arranged, wherein each knife (3) is provided with two knife connecting holes (33a, 33b) and is connected between the connecting disc (4) and a connecting ring (6), wherein the connecting disc (4) and the connecting ring (6) are provided with knife connecting holes (44, 54) which coincide with the knife connecting holes (33a, 33b) of the knives (3), wherein bolts (74) are arranged through the coinciding knife connecting holes (33a, 33b) in order to connect the connecting disc (4), the knives (3) and the connecting ring (6), wherein the connecting ring (6) is constructed from at least two ring sectors which together form the connecting ring (6).

Abstract: The invention relates to an apparatus for cleaning a ground surface of synthetic grass and a filler comprising a frame (4), moving and supporting means (5) arranged on the frame (4) for moving the apparatus over the ground surface, cleaning means for the filler arranged on the frame (4), wherein the cleaning means comprise at least one cleaning space for the filler and an air pump (14), wherein a suction side of the air pump (14) is connected to the cleaning space, wherein supply means (25-29, 30) are arranged on the frame for supplying the filler to the cleaning means. Moreover, a pressure side of the air pump is connected to the supply means.

Abstract: The invention relates to a device for aerating a ground, comprising a frame (2) provided with moving means (4) for travel of the device over a ground, a crankshaft (14) which is bearing mounted on the frame (2) and which can be coupled to a drive, a number of aerating means (21-23) connected to the frame (2) and connected to the crankshaft (14), wherein the aerating means (21-23) comprises at least one pin (45) which is adapted to perform a repetitive movement in a situation of use, wherein the pin (45) is inserted into the ground, wherein the movement is guided by at least two pivoting arms (24, 40) of the aerating means (21-23). The invention is characterized in that at least a first arm (40) of the aerating means (21-23) has a pivot point (44) which is movable relative to the frame (2) in the situation of use.

Abstract: The invention relates to an apparatus for cleaning a ground surface of synthetic grass and a filler comprising a frame (4), moving and supporting means (5) arranged on the frame (4) for moving the apparatus over the ground surface, cleaning means for the filler arranged on the frame (4), wherein the cleaning means comprise at least one cleaning space for the filler and an air pump (14), wherein a suction side of the air pump (14) is connected to the cleaning space, wherein supply means (25-29, 30) are arranged on the frame for supplying the filler to the cleaning means. Moreover, a pressure side of the air pump is connected to the supply means.