Patent ID: 7624560
Filing Date: 2009-12-01
Classification: A01D

Abstract:
1. A depth/height adjuster for a grass treatment insert mounted to rotate in a frame supported on front and rear rollers, said depth/height adjuster adjustable to vary the distance between the frame relative to the front roller and thereby adjust the height setting of the grass treatment insert, said depth/height adjuster comprising: a frame mounting block adapted to be mounted on a left or right side of the frame, said frame mounting block having a throughbore, an upper end of which is threaded and a lower end of which has a socket with a top wall, a shaft having an upper end which is threadedly received in the threaded throughbore of the frame mounting block and an enlarged lower end which is slidingly received in the socket, said shaft further having a nut affixed to an upper end of the shaft by which an operator may rotate the shaft, upward movement of the shaft in the frame mounting block being stopped when the upper end of the enlarged lower end contacts the top wall of the socket and downward movement of the shaft in the frame mounting block being stopped when a bottom edge of the nut contacts a top of the frame mounting block, a roller mounting block rotatably mounted on a lower end of the shaft, whereby free rotation of the shaft in the roller mounting block and threaded rotation of the shaft in the throughbore effects the relative distance between the frame mounting block and the roller mounting block, a vertical height gauge with scale markings attached to the roller mounting block, which scale markings of the vertical height gauge when aligned with a marking on the frame mounting block indicating the relative distance between the roller mounting block and frame mounting block which relative distance is correlated with a height setting of the grass treatment insert.