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A mechanism including a plurality of baffles positioned within a mower housing between the mower blades and a rear discharge outlet, including a first wall adjacent the edge of a respective blade and which acts to define the chamber within which the blade rotates, a second wall extending rearwardly

A mechanism including a plurality of baffles positioned within a mower housing between the mower blades and a rear discharge outlet, including a first wall adjacent the edge of a respective blade and which acts to define the chamber within which the blade rotates, a second wall extending rearwardly from the first wall and defining chutes which extend between the chambers and the rear discharge outlet, and third surfaces which act to enclose the space between the first and second walls to thereby prevent air and clippings from accumulating there. The chutes generally converge at the rear outlet. Ramps are positionable within the chutes for changing the mower to a mulching mode, and include a fourth wall or surface positioned in the entrance to the chute for partially blocking air and clippings from entering the chute. A fifth surface extends rearwardly from the edge of the fourth surface to the discharge outlet. A deflector is positionable within the housing and acts to channel clippings downwardly into the blade for re-cutting at a first portion, reduce the effective volume within the chamber at a second portion, and increase the vacuuming effect at a third portion. A first blade includes a plurality of upstanding nubs which are received in respective openings formed in the second blade, and act to couple the second blade for rotation with the first blade.

대표청구항 ▼

A rear discharge mower mechanism, comprising: a mower blade housing within which a plurality of mower blades rotate to cut vegetation, a rear portion of the housing defining a housing opening through which cut materials exit the housing, a plurality of baffles each positioned generally between a res

A rear discharge mower mechanism, comprising: a mower blade housing within which a plurality of mower blades rotate to cut vegetation, a rear portion of the housing defining a housing opening through which cut materials exit the housing, a plurality of baffles each positioned generally between a respective mower blade and the housing opening, each of said baffles including a vertically extending first surface positioned adjacent the rotational path of a respective mower blade, said baffles each including at least one vertically extending second surface connected with and extending rearwardly from the first surface, said second surfaces defining chutes between the baffles for channeling vegetation clippings rearwardly from the rotational paths of respective mower blades to the housing opening, each of said baffles also including a generally horizontal third surface extending between a lower portion of the first and second surfaces for generally enclosing the space between the first and second surfaces to thereby prevent clippings and air from accumulating therein. A mowing mechanism adapted for use with a rotary mower which includes a mower blade rotatable within a housing for cutting vegetation, said housing having a top wall and side walls extending downwardly from the top wall, said mechanism comprising: a deflector coupled between the top wall of the housing and the mower blade and extending generally in an arc about the blade\s axis of rotation, said deflector having a first generally arcuate portion which extends downwardly in the direction of blade rotation and from the top wall of the housing to a position above and near the path of the rotating mower blade, a second portion extending generally horizontally and spaced a relatively small distance above the mower blade, and a third portion extending upwardly from the second portion in the direction of blade rotation and to a position adjacent the top wall of the housing A mower blade mechanism, comprising: a mower housing, a first mower blade rotatable within the housing for cutting vegetation, a second blade abuttable with the first mower blade, one of said first or second blades including at least one nub means upstanding from a surface of said first or second blade, the other of the first or second blades including an opening for receiving the nub means for coupling the first and second blades for rotation together.