Kubota Corporation

Kubota Corporatin

Masatoshi Yamaguchi

Kazuo Samejima

Kazuo Koike

Yoshikazu Togoshi

Yoshiyuki Esaki

Koji Fujiwara

Yoshihiro Kawahara

Masatake Murakawa

Teruo Shimamura

Junichi Kitamura

Akihito Sugio

Masaji Kure

Shozo Ishimori

Kenichi Chujo

Bertrand Leguillette

Cristophe Auvergne

Masaki Hayashi

Nobuyuki Yamashita

Akira Minoura

Katsuhiko Uemura

Osami Fujiwara

Kazuaki Kurohara

Hiroki Nagai

Hiroyuki Ogasawara

Yoshio Tomiyama

Eriya Harada

Masato Asahara

Mikio Yuki

Kazuo Sameshiima

Disclosed is a mower with a mower deck, a plurality of cutting chambers mutually communicated and arranged in a lateral direction within the mower deck, and a blade mounted in each cutting chamber to be rotatable about a vertical axis. A grass clippings guide in form of a vertical wall is disposed in an upper area within the cutting chamber, to guide the grass clippings flowing within the cutting chamber toward a center of rotation of the blade. A shield member is disposed for preventing entry of grass clippings between the grass clippings guide and a peripheral wall of the cutting chamber.

Mower having a grass clippings guide and shield member

A rear discharge type mower apparatus includes: a blade housing having a top plate, a front wall and at least one side wall and a first front guide plate and a second front guide plate. Each of the first and second front guide plates are located rearwardly of the front wall and have a shape extending substantially along a rotation path of a corresponding blade. The mower apparatus also includes a first auxiliary plate and a second auxiliary plate. A portion of the second auxiliary plate and the first auxiliary plate extend parallel to each other such that an opening that is opposed to a mowed grass discharge opening is formed by the rearward ends of the linear portion and the first auxiliary plate. The lower edges of the first and second auxiliary plates are closer to the top plate than the corresponding blade.

Rear discharge type mower apparatus having a pair of auxiliary plates for directing grass to a discharge opening

A rear discharge type mower apparatus comprising a blade housing having a top plate, a front wall and at least one side wall; a support shaft supported by the blade housing and extending vertically; a rotatable blade supported by the support shaft, a tip end of the blade forming a rotation path; and a guide plate located rearwardly of the front wall and having a shape extending along the rotation path of a corresponding blade, and forming an opening for ejecting cut grass rearwardly. The guide plate has a first end located in an upstream position with respect to a rotating direction of the corresponding blade, and a second end located in a downstream position with respect to the rotating direction of the corresponding blade; and an auxiliary plate extending from an area of the first end into inside the rotation path of the corresponding blade.

Rear discharge type mower apparatus

A mulching mower unit comprising a mower deck having a top plate, and a plurality of rotary blades arranged side by side inside the mower deck. A mulching baffle for providing at least part of boundary walls of a plurality of mulching chambers is detachably attached to the interior of the mower deck. A vertical guide wall constituting the mulching baffle has an inclined surface. A terminal end guide surface is formed in a terminal end portion of the vertical guide wall with respect to a direction of rotation of the rotary blade in a region around an opening for allowing the adjacent mulching chambers to communicate with each other, whereby grass clippings are deflected inwardly of the mulching chamber with which the terminal end guide surface is associated.

Mulching mower unit

A measuring apparatus for a mower includes a floor defining a downward recess with respect to a floor surface, and an air speed measuring device or air pressure measuring device disposed in the recess for measuring a speed or pressure of air blown by the mower. The measuring device has air speed detecting elements or air pressure detecting elements. The air speed detecting elements or air pressure detecting elements have detecting heights including a height level with the floor surface.

Measuring apparatus for a mower

A mower comprising: a cutting blade housing; rotating cutting blades; a rear plate disposed rearwardly the rotating cutting blades; a rear vertical wall that is supported by the cutting blade housing and that forms a first ventilation hole in a center portion in the transverse direction of the cutting blade housing.

Mower deck with ventilation hole

A mower comprising: a cutting blade housing; rotating cutting blades; and a front baffle plate disposed forwardly of a rotation zone of each of the rotating cutting blades; wherein the front baffle plate comprises: an upstream-side cutting blade plate portion and a downstream-side cutting blade plate portion having a concave curved guide surface wherein the front baffle plate is configured such that the distance between a rotation zone of the upstream-side cutting blade and a boundary between the upstream-side cutting blade plate portion and the downstream-side cutting blade plate portion in the baffle plates is greater than the distance between the boundary and a rotation zone of the downstream-side cutting blade.

Mower with baffle

A side discharge mower comprises, a mower deck having a top wall, a front wall depending from the top wall, at least one side wall, a rear wall depending from the top wall, and a discharge opening formed laterally of the mower deck, a first shaft supported by the mower deck and extending vertically, and a second shaft disposed closer than the first shaft to the discharge opening, a first blade rotatable about an axis of the first shaft so that distal ends thereof define a first circular path, a second blade rotatable about an axis of the second shaft so that distal ends thereof define a second circular path, a rear baffle disposed in a rear region of the mower deck, and an intermediate baffle extending from the rear baffle forward through an area adjacent a boundary between the first circular path and the second circular path, the intermediate baffle extending from the rear baffle forwardly beyond a line connecting the first shaft and the second shaft.

Side discharge mower

A mid-mount mower including a body frame supported above the ground by front wheels and rear wheels, and a mower unit vertically movably suspended from the body frame between the front wheels and rear wheels. The mower unit includes a mower deck having a top board, and a front wall, side walls and a rear wall depending from the top board. The mower deck has a rearwardly opening recess formed in a sideways middle region at a rear end thereof. A mower input shaft is disposed on the top board for transmitting power to the rotary blades juxtaposed inside the mower deck to be rotatable about three vertical axes arranged sideways. The mower input shaft extends longitudinally of the body frame and has a rear connecting end. A PTO shaft is provided in a rear transmission mechanism that drives the rear wheels. The PTO shaft extends longitudinally of the body frame and has a forward connecting end. A relay transmission shaft has one end thereof connected to the connecting end of the mower input shaft through a front universal joint, and the other end connected to the PTO shaft through a rear universal joint. The recess is recessed longitudinally of the body frame to an extent forwardly of the rear universal joint to receive the rear universal joint when the mower unit is raised.

Mid-mount mower

A mower unit attachable to a vehicle body includes a mower deck. The mower deck defines a grass discharge opening at an opposite side of one side wall, and has a plurality of rotary blades juxtaposed inside the mower deck to be rotatable about vertical axes. All of the rotary blades are rotatable in the same direction so that a front half, with respect to a traveling direction, of a track of rotation of each rotary blade points toward the side having the grass discharge opening. A rear baffle depends from a top board of the mower deck for enclosing the rotary blades in combination with a front wall, and surrounds, in form of a concentric part circle, a rear portion of the track of rotation of each rotary blade. A front baffle and a mulching baffle are provided to be selectively attached to the mower deck to be located forwardly of the tracks of rotation of the rotary blades. The front baffle includes curved segments each for surrounding, in form of a concentric part circle, a front portion of the track of rotation of one rotary blade, and counter curved segments for connecting the curved segments. The mulching baffle, in combination with the rear baffle, defines a mulching chamber surrounding the track of rotation of each rotary blade.

Mower unit attachable to a vehicle body

A rear discharge mower unit ( ) with a mower housing ( ) defining grass clippings flow paths for directing grass clippings rearward. The mower unit includes a power transmission mechanism for rotating a center blade ( ) and a second side blade ( ) in one direction and a first side blade ( ) in the other direction, a center baffle ( ) extending around a rotational axis of the center blade and defining a center flow path ( ) for feeding grass clippings to a grass clippings outlet ( ), a first side baffle ( ) extending around a rotational axis of the first side blade ( ) and defining a first side flow path ( ) for feeding grass clippings to the grass clippings outlet ( ), and a second side baffle ( ) extending around a rotational axis of the second side blade ( ) and defining a second side flow path ( ) for feeding grass clippings to the center flow path ( ).

Rear discharge mower unit and lawn tractor

A rear discharge mower unit (50) with a mower housing (55) defining grass clippings flow paths for directing grass clippings rearward. The mower unit includes a power transmission mechanism for rotating a center blade (58) and a second side blade (60) in one direction and a first side blade (59) in the other direction, a center baffle (63) extending around a rotational axis of the center blade and defining a center flow path (69a) for feeding grass clippings to a grass clippings outlet (66), a first side baffle (64) extending around a rotational axis of the first side blade (59) and defining a first side flow path (69b) for feeding grass clippings to the grass clippings outlet (66), and a second side baffle (65) extending around a rotational axis of the second side blade (60) and defining a second side flow path (69c) for feeding grass clippings to the center flow path (69a).

A working vehicle with power steering, having a substantially closed accommodating space defined by an engine hood and a control panel, an engine disposed in the accommodating space and a steering shaft disposed in the control panel. A cooling fan produces cooling air flows moving toward the engine from an air intake formed in the control panel. A power steering apparatus for supplying steering assist power to the steering shaft, and a control unit for controlling the power steering apparatus, are arranged in the accommodating space to be exposed to the cooling air flows.

Growing community of inventors

Izumi, Japan

Masatoshi Yamaguchi