Komatsu Corporation

Yukinori Maeda

Hiroshi Abe

Makoto Sasaki

Hiroshi Yoshida

Yoshiki Kami

Kozo Okuda

Katsuhiro Ikegami

Yuki Shimano

Yasutaka Nishida

Kazuyuki Yamazaki

Ryoichi Togashi

Shouhei Nagasaka

Minato Tomuro

Shinya Furuhata

Osamu Okamoto

A hydraulic excavator is a work vehicle equipped with a work implement, including a cab and a rotating light. The rotating light is removably disposed on a roof of the cab. The rotating light has a rotating light main body, an attachment component, and a handle. The attachment component is provided on the lower side of the rotating light main body and is used to attach the rotating light main body to the roof. The handle is portal-shaped and fixed to the attachment component, and has a first rod-shaped part, a second rod-shaped part, and a third rod-shaped part. The first rod-shaped part and the second rod-shaped part are formed facing upward from the attachment component. The third rod-shaped part connects the first rod-shaped part and the second rod-shaped part together. The third rod-shaped part is disposed above the rotating light main body when viewed from the side and perpendicular to the lengthwise direction.

Work vehicle and rotating light

A filter remover removes a cylindrical filter element housed in a housing through an opening provided in the housing. The filter remover includes: an attachment portion provided with a screw to be screwed onto the opening; an insert portion that includes a base end integrated with the attachment portion and a tip end in a form of a free end, that is elastically deformable in a radial direction orthogonal to an axial direction of the filter element in conjunction with a movement in the axial direction caused when the attachment portion is screwed, and that is inserted through the opening into a center hole provided in the filter element as the attachment portion is screwed; and an engaging portion that is provided at the tip end and that is engaged with the filter element after the attachment portion is moved for a predetermined amount when the attachment portion is screwed.

Filter remover

A hydraulic cylinder stroke operation diagnosis assisting device includes: movable portions that are sequentially supported by a vehicle body in a rotatable manner; a hydraulic cylinder between the vehicle body and each movable portion or between the movable portions to support the movable portions in a rotatable manner; a stroke sensor in the hydraulic cylinder to measure a stroke length of the hydraulic cylinder; a reset sensor measuring a reference reset point in which a value of the stroke length measured by the stroke sensor is reset; a stroke end detection unit detecting a stroke end position of the hydraulic cylinder; a calibration unit calibrating the measured value of the stroke length when the reference reset point and/or the stroke end position are detected; and a monitor displaying at least the measured value of the stroke length and a calibration state by the calibration unit.

Hydraulic cylinder stroke operation diagnosis assisting device and hydraulic cylinder stroke operation diagnosis assisting method

A self-traveling crushing machine includes: a traveling device; a crushing device that is provided on the traveling device and crushes a to-be-crushed object supplied; an overload escaping section that escapes an overload of the crushing device; and a controller that controls the crushing device. In the self-traveling crushing machine, the crushing device is a jaw crusher in which the to-be-crushed object is supplied to a V-shaped space formed by a fixed jaw and a movable jaw and the movable jaw swings relative to the fixed jaw to crush the to-be-crushed object, and the controller includes: an escape-operation determining section that determines whether or not the overload escaping section has operated; and an information output section that sends the escape operation information to an outside when the escape-operation determining section determines that the escape operation has been conducted.

Self-propelled crusher and management system for self-propelled crusher

Growing community of inventors

Ichinomiya, Japan

Yukinori Maeda