Hitachi Construction Machinery Co., Ltd.

Nkk Corporation

Travel Sentry Sarl

Tomohiro Yoshida

Satoshi Inose

Yasuo Suzuki

Kazuo Fujishima

Hiroyuki Konno

Takami Kusaki

Sunao Nakamura

Takashi Okumura

Yuichi Yamakawa

Tsuneo Matsudaira

Ayato Iwasaki

Tomohiro Yoneda

Masutaka Kumasaka

The present disclosure provides a work machine management system that can predict the maintenance timing of a work machine with higher accuracy than conventional techniques. A work machine management systemof the present disclosure includes an input/output unitand a processing unit. The input/output unitreceives from work machinespositional information PI and operation information OI on the work machines, and also receives from a geographical information system servergeological information GI on an area where the work machinesare to perform an operation, based on the positional information PI. The processing unitpredicts the maintenance timing of each work machinebased on the operation information OI and the geological information GI. In response to a request from an external portable terminal, the input/output unitoutputs to the portable terminaldata on an alert based on the maintenance timing of the work machinepredicted by the processing unit

Work machine management system and work machine management device

An inspection support system for a construction machine including a cameraand a display (monitor)and acquiring image data of the construction machine provided in an inspection report includes a guidance display sectionthat displays a guidance image on the display, the guidance image showing a composition of a photographing object photographed as the image data, a photographing sectionthat acquires a photographic subject image photographed by the cameraas image data, and a transmitting section that transmits the image data acquired to a management serverthat manages the inspection report.

Inspection support system for construction machine, management server, and inspection report creation system

The locking device includes a key having a cylindrical shaft in which a guide groove is formed in the axial direction, and a cylinder lock which includes an outer cylinder, an inner cylinder, a locking bar and a tumbler, the inner cylinder has an inner cylinder main body rotatably accommodated in the outer cylinder, a rod fixed to the inner cylinder main body, and a key insertion slot, the locking bar is interposed between the inner cylinder main body and the outer cylinder and prevents the rotation of the inner cylinder by engaging and disengagingly locking the inner cylinder main body and the outer cylinder, and the tumbler has a guide convex portion engageably and detachably engaged with the key groove, and an inner concave portion rotatably received in the inner cylinder and dropping the locking bar.

Locking device

A structure of a gasified and melting furnace comprising a freeboard portion whose center axis is shifted from a center axis of a lower furnace portion by 50% or more of an inner furnace diameter, to load waste and additives and to measure a height of a deposition layer formed in the lower furnace portion, without passing through the freeboard.

Structure of gasified and melting furnace

Growing community of inventors

Tokyo, Japan

Tomohiro Yoshida