Komatsu Corporation

Daisuke Tsukamoto

Yoshiaki Honma

Hiroaki Tanaka

Makoto Sasaki

Yasuhiro Yanagida

Hirokazu Sugimoto

Hiroyuki Shioji

Koudou Tsuji

Masahiro Nagano

Daisuke Tsumura

Tomoko Kikuma

Tomoyuki Imada

A hydraulic excavator includes a cab and a work implement arranged on one lateral side of the cab. The cab includes an operator's seat, front pillars, a roof portion, first and second guide rails, a front window, a monitor device, a monitor, and a support member. The monitor is supported on a first pillar above the monitor device and has a second display screen larger than a first display screen. The support member supports the monitor so as to be movable between an interference position interfering with a movement region where the front window moves between a closed state and an opened state of an opening, and a non-interference position with no interference. Accordingly, a hydraulic excavator can be obtained in which a large-sized monitor can be arranged on a front side of the cab without interference with a movable front window.

Hydraulic excavator

A coupling plate is arranged below an attaching member. A vibration suppressing member is mounted between the attaching member and the coupling plate. The first controller main body is arranged above the attaching member. A coupling member connects the coupling plate and the first controller main body.

Controller assembly and work machine cab

A controller assembly includes a base plate, a bracket, and a first controller main body. The base plate includes a through hole and a frame having an upper surface and a lower surface and surrounding the through hole. The bracket has first and second flange portions supported on the upper surface of the frame at positions opposite to each other over the through hole, first and second side portions coupled respectively to the first and second flange portions and passing through the though hole; and a bottom portion coupled to both of the first and second side portions on the side of the lower surface of the frame. The first controller main body is mounted on a bottom portion of the bracket. Accordingly, a controller assembly which can be readily assembled, a cab of a work implement, and a work machine can be obtained.

Controller assembly, cab for work machine, and work machine

A cab structure unit includes front-left and front-right pole members, a rear-left and rear-right pole members. The pole members include a pipe member that is bent in a substantially L shape. The pole members include a straight pipe member. The rear end of a beam portion of the pole member and the upper end of the pole member arranged on the left side surface side of the cab that includes an arc part formed along the revolution circle of revolving unit are arranged at deviated positions from each other. The rear end of the beam portion of the pole member and the upper end of the pole member arranged at deviated positions from each other are joined to each other by the rear beam member.

Cab structure for construction machine

A cab structure for a construction machine that includes a plurality of pole members and can ensure the rigidity of the cab structure for a construction machine is provided. The cab structure unit includes the rear-right pole member that has a length that is shorter than other pole member (rear-left pole member) and does not reach the level of a floor panel (joint panel) so that the recessed space is formed in the rear side of the cab (). The rear-right pole member is joined to the first rear panel portion and the plate-shaped member as a reinforcement member that reinforces a part from the lower end of the rear-right pole member to the height position of the floor panel.

The frame body is formed by a plurality of pipe-shaped members including a first column portion, a beam portion, the front end portion of which is connected to the upper end portion of the first column portion, and a middle column member that is disposed rearward from the first column portion. The upper guide portion is provided along a beam portion in a position ranging from a first position to a second position. Here, the first position is located frontward from the middle column member and rearward from the first column portion, and the second position is located rearward from the middle column member.

Growing community of inventors

Hirakata, Japan

Daisuke Tsukamoto