Komatsu Corporation

Toshimitsu Honda

Toshiyuki Ohta

Minoru Wada

Katsuhiro Tsutsumi

Takaya Kobayashi

Hisato Kitaoka

Takeshi Kamimae

Masaya Ota

Teruhisa Iwata

Yosuke Yamagoe

Yoshiharu Sato

Norihito Bandou

Takeshi Saoyama

Takayasu Wakamoto

Minoru Sato

A working vehicle includes: a vehicle body; and a boom; a bucket; a boom driving unit including a boom cylinder; a bucket driving unit configured to swing the bucket; a boom-bottom pressure sensor configured to detect a boom-bottom pressure of the boom cylinder; and a working equipment controller configured to control at least one of a lift motion of the boom and a tilt motion of the bucket. The bucket includes an inclined portion. The working equipment controller controls the lift motion or the tilt motion by comparing a threshold set in accordance with an inclination angle of the inclined portion with the boom-bottom pressure.

Working vehicle

A bucket with a linear lower front edge includes: a first straight portion horizontally extending from the lower front edge toward an innermost of the bucket; an inclined portion continuous with a rear edge of the first straight portion, the inclined portion further extending toward the innermost of the bucket while being inclined upward; a curve continuous with a rear edge of the inclined portion at a lower edge of the curve, the curve having a predetermined bucket radius; a second straight portion continuous with an upper edge of the curve, the second straight portion being inclined upward toward a bucket opening; and a third straight portion bent at a bent portion toward the bucket opening relative to a front edge of the second straight portion, the third straight portion further extending toward the bucket opening.

Bucket and working vehicle provided with the same

A bucket with a blade-shaped lower front edge includes: a first straight portion horizontally extending from the lower front edge toward an innermost of the bucket; a curve continuous with a rear edge of the first straight portion at a lower edge of the curve, the curve having a predetermined bucket radius; a second straight portion continuous with an upper edge of the curve, the second straight portion being inclined upward toward a bucket opening; a third straight portion bent at a bent portion toward the bucket opening relative to a front edge of the second straight portion, the third straight portion further extending toward the bucket opening; a reinforcing member provided on an exterior surface of the third straight portion to reinforce of the exterior surface; and a connecting portion provided behind the curve.

A working vehicle includes: an air cleaner provided with a vacuator; a planar portion located below the air cleaner; an emission receiver provided to the planar portion at a position right under the vacuator, the emission receiver being recessed downward while having an upper opening, the emission receiver including a bottom surface; and a discharge channel having a base end that is in communication with the emission receiver through a communication opening and a distal end that is opened to an outside of the working vehicle through a discharge port, the discharge channel having an inclined surface inclined downward from the communication opening toward discharge port.

A supporting mechanism supports a first and second exhaust treatment devices for treating exhaust gas from an engine and is provided with a base member, a first supporting member, and a second supporting member. The base member includes first and second connecting parts, and first and second pipe members. The base member supports the first and second exhaust treatment devices. The first supporting member supports one side of the base member. The second supporting member supports the other side of the base member. The first connecting part is joined with the first supporting member. The second connecting part is joined with the second supporting member. The first and second pipe members are disposed side by side on a common horizontal plane. An opening section is formed by the edges of the first pipe member, the second pipe member, the first connecting part, and the second connecting part.

Supporting mechanism, exhaust treatment unit, and wheel loader

A supporting mechanism supports first and second exhaust treatment devices for treating exhaust gas from an engine, and includes a sub-bracket, a base bracket, and first and second supporting members. The base bracket includes first and second connecting parts, and first and second pipe members. The sub-bracket supports the first and second exhaust treatment devices. The base bracket supports the sub-bracket. The first and second supporting members respectively support one side and the other side of the base bracket. The first and second connecting parts are respectively joined to the first and second supporting members. The first and second pipe members are installed between the first and second connecting parts. The sub-bracket is attached to the first and second pipe members, extends in the lateral direction of the first and second pipe members, and is separated from the first and second connecting parts.

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Hitachinaka, Japan

Toshimitsu Honda