Kubota Corporation

Minoru Kyotani

Kazuo Samejima

Junji Miyata

Masaji Kure

Hideo Okura

Toshio Ishiguro

Mitsuhiro Matsuyama

A mower unit includes a housing having a skirt portion extending toward the ground, and a covering wall surrounding a plurality of grass cutting blades to define spaces for mulching treatment. The covering wall includes peripheral wall members each curved along a locus of revolution of the blade and spaced from the skirt portion. The peripheral wall member includes a vertical portion descending toward the ground. The vertical portion and the skirt portion have lower ends thereof substantially at the same height over the ground. The blades are arranged transversely of the mower unit. The peripheral wall members are in the form of independent annular wall members provided for the blades, respectively. The annular wall members define spaces for mulching treatment substantially independent of one another. Alternatively, the peripheral wall members may be in the form of annular wall members corresponding to loci of revolution of the blades, respectively, and an adjacent pair of the annular wall members may have at least parts of peripheries overlapping each other. The parts of peripheries are cut so that the spaces of mulching treatment defined by the pair of annual wall members communicate with each other.

Mulching mower unit

A ground working implement comprises a frame, a rotary ground working unit supported by the frame and rotatable about a horizontal axis, a transmission for the working unit, a cover assembly covering the working unit and including a movable cover, and a holder detachably engageable with the frame and the cover to hold the cover while the cover is in contact with the ground at a position to the rear of and spaced from the peripheral portion of the working unit in contact with the ground. Thus the cover cooperates with the working unit to serve as a stand for holding the implement in its upright position. The cover is also holdable in a raised position by the holder to facilitate the maintenance of the working unit. The cover can also be shaped to have a front contact portion and a rear contact portion continuous therewith and positioned at a lower level than the front contact portion with an intermediate portion therebetween held out of contact with the ground by a space. A suspender can be provided for suspending the cover assembly from the frame, which can include a shock absorber.

Power-driven rotary ground working implement

Growing community of inventors

Sakai, Japan

Minoru Kyotani