Komatsu Corporation

Yoshiaki Shimada

Masahiko Hamaguchi

Monta Kondou

Wataru Nishiyama

Kou Uchiyama

Yuuji Shiomoto

Naoki Tsujimoto

A work machine where a plurality of exhaust treatment devices can appropriately be arranged is provided. The work machine includes an engine, a first exhaust treatment device that treats exhaust emitted from the engine, and a second exhaust treatment device that treats exhaust that has passed through the first exhaust treatment device. A longitudinal direction of the first exhaust treatment device is inclined with respect to a fore/aft direction and a lateral direction and inclined with respect to a longitudinal direction of the second exhaust treatment device.

Work machine including exhaust treatment devices

An engine hood for a construction machine is configured to be pivoted in a vehicle body back-and-forth direction about a hinge attached as a pivot center to a longitudinal side part of a counterweight. The engine hood includes an engine hood main body, a first operating force applying unit and a second operating force applying unit. The engine hood main body is attached to a vehicle body of the construction machine in a pivotably openable/closable state. The first operating force applying unit is configured to apply force in a direction of opening the engine hood main body until the engine hood main body reaches a vicinity of a predetermined opening angle. The second operating force applying unit is configured to apply force in a direction of closing the engine hood main body when the engine hood main body is pivoted at the predetermined opening angle or greater.

Engine hood for construction machine

A bearing assembly used for a work implement of a construction machine with an excellent bearing performance, excellent durability and good maintenance. A pair of first bushings with flanges and a pair of second bushings with flanges are fixed respectively in the bore of the boss and the brackets in a manner such that the first bushing flange faces the second bushing flange. An anti-wear material applied on at least one of the sliding surfaces of the flanges of the first and second bushing flanges that face each other. The first bushings with flanges fixed in both sides of the bore of the boss can be a double-structural member including an outer tubular member and an inner sliding member fixed in the bore of the outer tubular member respectively. Furthermore, the first bushings can be a double-structural member including an outer tubular member and an inner sliding member fixed in the bore of the outer tubular member.

Growing community of inventors

Hirakata, Japan

Yoshiaki Shimada