Height of cut system for lawn mower

摘要

A deck lifting and height of cut assembly for a lawn mower, in which the deck lifting assembly includes at least one movable component and the height of cut assembly includes a height adjustment mechanism having a plurality of stop surfaces. A prop extends between the movable component of the deck lifting assembly and a first stop surface of the height adjustment mechanism to prevent the cutting deck assembly from lowering below a first height. The height adjustment mechanism is adjustable to place a second stop surface in engagement with the prop so that the cutting deck assembly is prevented from lowering below a second height different from the first height. The prop may also be used to maintain the cutting deck assembly in the full-up position during travel of the lawn mower between work areas.

主权项

1. A lawn mower comprising:
a plurality of wheels; a frame supported by the wheels; an operator platform assembly coupled to the frame and configured to support an operator; a control tower extending vertically from the frame in front of the operator platform assembly, the control tower including controls within an operator zone, the operator zone being within reach of the operator of the lawn mower while standing on the operator platform assembly during use of the lawn mower; a mower drive assembly supported by the frame and driving rotation of at least one of the wheels to propel the lawn mower; a cutting deck assembly including a cutting deck and at least one rotatable cutting blade beneath the cutting deck, the rotatable cutting blade rotating under the influence of the mower drive assembly, a height of the cutting deck assembly corresponding to a height of cut at which the cutting blade cuts grass under the cutting deck; and a height of cut assembly including an adjustable height setting member providing a plurality of stop surfaces and a prop engageable with the height setting member, the height of cut assembly also including an adjustment mechanism that actuates the adjustable height setting member to place the prop in abutment with a selected one of a first stop surface and a second stop surface, the adjustment mechanism including
a height setting operator interface located in the operator zone of the control tower, anda linkage operably connecting the height setting operator interface and the adjustable height setting member, wherein engagement of the prop with the first stop surface on the adjustable height setting member holds the cutting deck assembly at a first height corresponding to a first height of cut, and engagement of the prop with the second stop surface on the adjustable height setting member holds the cutting deck assembly at a second height corresponding to a second height of cut different from the first height of cut.