Abstract: A failure of a component mounted on a work machine is easily identified. A controller acquires time-series data detected in a first period as first snapshot data, and acquires the time-series data detected in a second period after the first period as second snapshot data. A storage unit stores information in which a deviation of a physical quantity from a normal range in order to monitor an operation status of the component, and a failure of the component that is a cause of the deviation are associated with each other. The controller identifies the failure of the component based on the first snapshot data, the second snapshot data, and the information stored in the storage unit.

Abstract: An open/close guard with a wiper device is attachable to a cab with a skylight. The wiper device includes a wiper for wiping a surface of the skylight, and a wiper drive unit that rotatably supports the wiper. The open/close guard includes a fixing frame attachable to the cab, and an open/close guard portion supported by the fixing frame. The open/close guard portion is supported by the fixing frame so that it can be opened or closed from or over the fixing frame.

Abstract: A roof-light window wiper device includes a wiper motor having an output shaft; a wiper link coupled to the output shaft, and having an extension extending in a direction crossing the output shaft of the wiper motor, and a drive shaft extending in a direction crossing the extension, and a wiper connected to the drive shaft. The drive shaft and the output shaft extend at the side of the wiper motor relative to the wiper link. The wiper is connected to the drive shaft at the side of the wiper motor relative to the wiper link. Thus, there can be provided a roof-light window wiper device that can have the pressure of the wiper against the surface of a roof-light window increased by decreasing the depression angle of the wiper, and a cab and a construction machine including the roof-light window wiper device.

Abstract: An open/close guard with a wiper device is attachable to a cab with a skylight. The wiper device includes a wiper for wiping a surface of the skylight, and a wiper drive unit that rotatably supports the wiper. The open/close guard includes a fixing frame attachable to the cab, and an open/close guard portion supported by the fixing frame. The open/close guard portion is supported by the fixing frame so that it can be opened or closed from or over the fixing frame.

Abstract: A roof-light window wiper device includes a wiper motor having an output shaft; a wiper link coupled to the output shaft, and having an extension extending in a direction crossing the output shaft of the wiper motor, and a drive shaft extending in a direction crossing the extension, and a wiper connected to the drive shaft. The drive shaft and the output shaft extend at the side of the wiper motor relative to the wiper link. The wiper is connected to the drive shaft at the side of the wiper motor relative to the wiper link. Thus, there can be provided a roof-light window wiper device that can have the pressure of the wiper against the surface of a roof-light window increased by decreasing the depression angle of the wiper, and a cab and a construction machine including the roof-light window wiper device.

Abstract: A mobile crushing system is for crushing inputted objects and dropping the crushed objects directly into an ore path. The mobile crushing system includes a crusher vehicle on which a crushing device for crushing the objects is mounted and which includes carriers, and a feeder vehicle on which a transfer device for transferring the objects to the crushing device and which includes carriers. The crusher vehicle and the feeder vehicle travel independently and include a crusher-side connecting portion and a feeder-side connecting portion that are connected to each other. During crushing operation, the ore path is interposed between the crusher vehicle and the feeder vehicle in the front-rear direction.

Abstract: A mobile crushing system is for crushing inputted objects and dropping the crushed objects directly into an ore path. The mobile crushing system includes a crusher vehicle on which a crushing device for crushing the objects is mounted and which includes carriers, and a feeder vehicle on which a transfer device for transferring the objects to the crushing device and which includes carriers. The crusher vehicle and the feeder vehicle travel independently and include a crusher-side connecting portion and a feeder-side connecting portion that are connected to each other. During crushing operation, the ore path is interposed between the crusher vehicle and the feeder vehicle in the front-rear direction.

Abstract: A work machine for achieving efficient coordinated operations by a plurality of kinds of operating units, comprising first and second swivel driving members and first and second swivel joints, wherein a first swiveling base bearing a first operating unit and a second swiveling base bearing a second operating unit can swivel around a common swiveling axis independently relative to a traveling base.