公开(公告)号：US09775286B2

公开(公告)日：2017-10-03

申请号：US14525410

申请日：2014-10-28

Applicant: Textron, Inc.

Inventor： Ramya Mahalingam ,  Robert James Pilon, Jr. ,  James Christopher Fox

IPC: A01D34/52 ,  A01D34/44 ,  A01D101/00 ,  A01B33/10

CPC classification number: A01D34/52 ,  A01B33/103 ,  A01D34/44 ,  A01D2101/00

Abstract: A disk for vertically cutting grass surfaces, the disk includes a center plate mountable to a shaft and a plurality of teeth extending from a circumferential edge of the center plate. Each tooth comprises a base extending from the circumferential edge of the center plate and at least one blade extending from the base at an offset angle. Each blade includes a neck extending from the base at the offset angle, and a tip extending radially outward from the neck relative to a center plane of the center plate such that the tip is offset from the center plane. The tip also extends from the neck at a yaw angle relative to the center plane such that when the disk is rotated about a rotational axis of the shaft a leading edge of the tip rotates in a different rotational plane than a trailing edge of the tip.

公开(公告)号：US09635809B2

公开(公告)日：2017-05-02

申请号：US14300571

申请日：2014-06-10

Applicant: Textron, Inc.

Inventor： Erhun Osahenrhunwen Iyasere ,  Robert James Pilon, Jr. ,  Richard Michael Krzesicki

IPC: A01D34/54 ,  A01D34/00 ,  A01D34/56 ,  A01D34/44

CPC classification number: A01D34/54 ,  A01D34/006 ,  A01D34/44 ,  A01D34/56

Abstract: A system for controlling a grass cutting reel assembly of a turf-care vehicle. The system includes: a reel cylinder motor operable to rotate a reel cylinder of a grass cutting reel assembly of a turf-care vehicle at a desired rotational rate of speed to provide a controllable frequency of clip for the reel assembly; an automated height of cut control system operable to control a position of a front roller of the reel assembly to provide a controllable height of cut for the reel assembly; and a controller system operable to control the reel cylinder motor and the height of cut control system to provide a particular frequency of clip and a particular height of cut stipulated by one of a plurality of cutting scenarios programmed into the controller system and selected via a user interface of the controller system that is accessible by an operator onboard the turf-care vehicle.