Hitachi Construction Machinery Co., Ltd.

Keiichiro Nakamura

Kouji Ishikawa

Kazuhiro Shibamori

Hidetoshi Satake

Hidenobu Tsukada

Kouichi Shibata

Yasunori Ota

Eitaro Ito

Ken Imamura

Daisuke Nogami

Tomoki Kimura

Yuuki Gotou

Junko Suzuki

Kouta Fujieda

Genroku Sugiyama

Kazunori Nakamura

Shinji Nishikawa

Takatoshi Ooki

Yutaka Watanabe

Tsuyoshi Sakyo

Tadatoshi Shimamura

A safety device for a construction machine includes a status information acquisition section that acquires status information pertaining to the status of the construction machine, a seat belt detection section that detects whether an operator is wearing a seat belt, and a control section that controls a warning section so that a warning is given on the basis of the status information when the operator is not wearing the seat belt, in which the status information includes information pertaining to the operation position of a gate lock lever that is manipulated to a lock position in which instructions from operating levers of the construction machine are disabled and a lock release position in which instructions from the operating levers are enabled, and the control section controls the warning section so that a warning is given when the gate lock lever operation position is at the lock release position.

Safety device for a construction machine

Disclosed is a display devicefor a work machine having an engine, a hydraulic pumpdriven by the engine, a boom cylinder, an arm cylinder, a bucket cylinder, and other actuators driven by a hydraulic fluid supplied from the hydraulic pump, and an operating devicefor operating the actuators. The display deviceincludes an idle state display sectionfor displaying an engine revolution speed N as no-manipulation period operating state information which is related to an engine load that is imposed while the operating deviceis not manipulated. This makes it possible to inform an operator of the status of the engine load in an idle state for the purpose of prompting the operator to transition into a fuel-efficient state.

Display device for work machine

A display system for a working machine displays warning information while also displaying a high-quality camera image. The display redisplays a reduced camera image at a reduction scale of 60% according to an abnormality information signal. An open areaoutside the area displaying the camera image. The display control device displays a warning icon (large size), corresponding to abnormality information regarding a filter of a DPF device, in the open area. The operator recognizes the warning and immediately stops the operation, moves to a place where the filter regeneration is possible while checking the safety of the surroundings by viewing the camera image, and then carries out the filter regeneration. After finishing, the operator confirms that the warning icon has disappeared, moves to the site of the operation while checking the safety of the surroundings by viewing the camera image (for normal times), and then restarts the operation.

Display system for working machine

A display system for a working machine displays basic information at all times and, in case of an abnormality, displays the details of the warning in addition to the basic information to enable an operator to reliably recognize details of the warning. For example, a first warning display function, upon receiving an abnormality information signal relating to a charge warning, displays an appropriate warning icon in a warning icon display region. A simplified basic-information display function, then displays simplified basic-information images and a second warning display function displays, in a free area of the display, a second warning message inclusive of a 'Charge warning' message as display details of the warning icon, and of character information relating to a simplified remedial action. The operator can then reliably recognize the 'Charge warning' and understand its details as well, by viewing the second warning message in addition to the warning icon.

Construction machine display with graphic user interface

Construction machine display with a graphic user interface

A display device for a construction machine has a display switching means, output control means, operation detecting means, and display prohibiting means. The display switching means switches information displayed on a monitor placed in an operation cabin, where the switching is made to prevent display of unnecessary information on the monitor while the construction machine is performing work. The output control means selects display information recorded in information recording means and outputs the selected information to the monitor. The operation detecting means detects whether or not the construction machine is in a working state. When the operation detecting means detects that the construction machine is in the working state, display switching operation of the monitor is performed by the display switching means, and the display prohibiting means prohibits the display of specific information.

Monitor display for construction machine

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Mito, Japan

Keiichiro Nakamura