Kobelco Construction Machinery Co., Ltd.

Kazuhiro Uesugi

Takayuki Okunishi

Tatsuya Shiraishi

Yushi Zheng

A bar-like member includes a base end portion, a leading end portion opposite to the base end portion, and a fixed portion provided between the base end portion and the leading end portion and fixed to an upper frame. A binding band is adapted to bind the bar-like member and an arranging member together in order to fix the arranging member arranged along the bar-like member. The fixed portion of the bar-like member is formed by folding the bar-like member between the base end portion and the leading end portion, and has an outer peripheral surface fixed to the upper frame in abutting contact with the upper frame. The leading end portion of the bar-like member is positioned away from the upper frame by fixing the outer peripheral surface of the fixed portion to the upper frame.

Construction machine

A front bracket has a fixed part that is fixed to a bottom plate and vertical plates, and a pair of protruded parts that are protruded backward from a rear part of the fixed part so as to extend upper parts of sidewall parts. The fixed part and the protruded parts are sandwiched between opposite surfaces that are opposite to each other at front parts of the vertical plates. The protruded parts are welded to opposite surfaces of the vertical plates that are brought into contact with the protruded parts. Each welded portion between the protruded part and the opposite surface of the vertical plate is formed along an edge of the protruded part that is in contact with the opposite surface of the vertical plate.

Working machine

Base end portions of a pair of engine support legs are welded to an upper frame in an exhaust duct. The pair of engine support legs extends to a notched portion of the exhaust duct from the base end portions to front end portions thereof. The front end portions project to the outside of the exhaust duct. The pair of engine support legs is connected to each other by a reinforcement plate arranged to close the notched portion of the exhaust duct.

The device-supporting member comprises: an upper horizontal plate portion having an upper surface for placing a cooling unit thereon; a lower horizontal plate portion disposed below the upper horizontal plate portion and having a maintenance hole formed to penetrate therethrough in an up and down direction so as to allow maintenance of the cooling unit; and an upper right vertical plate portion and a lower left vertical plate portion each provided between the upper horizontal plate portion and the lower horizontal plate portion. The upper horizontal plate portion, the upper right vertical plate portion, the lower horizontal plate portion and the lower left vertical plate portion are arranged to define a closed cross-section when viewed in side view. The upper horizontal plate portion has a cutout formed to penetrate therethrough in the up and down direction so as to allow the maintenance of the cooling unit through the maintenance hole.

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Hiroshima, Japan

Kazuhiro Uesugi