Abstract: The work machine includes a controller including a first storage unit capable of storing work machine information and capable of rewriting the stored work machine information, and a processing unit configured to collect the work machine information, and when trigger information for causing the first storage unit to start storing the work machine information occurs, the processing unit causes at least a portion of the collected work machine information to be stored to the first storage unit. The first storage unit stores header information. At a time when the trigger information occurs, the processing unit generates the work machine data from the collected work machine information in accordance with the header information and stores the work machine data to the first storage unit.

Abstract: A work machine includes a controller having a first storage unit that can store work machine information and rewrite the stored work machine information, and a processing unit that collects the work machine information, and stores at least one kind of the work machine information in the first storage unit when trigger information for causing the first storage unit to start storing the work machine information occurs. The controller can change from an outside at least one of the number of data prior to a trigger of the work machine information collected by the processing unit before the trigger information, the number of data subsequent to the trigger of the work machine information collected by the processing unit after the trigger information, and a time interval during which the work machine information is collected.

Abstract: The work machine includes a controller including a first storage unit capable of storing work machine information and capable of rewriting the stored work machine information, and a processing unit configured to collect the work machine information, and when trigger information for causing the first storage unit to start storing the work machine information occurs, the processing unit causes at least a portion of the collected work machine information to be stored to the first storage unit. The first storage unit stores header information. At a time when the trigger information occurs, the processing unit generates the work machine data from the collected work machine information in accordance with the header information and stores the work machine data to the first storage unit.

Abstract: A work machine includes a controller having a first storage unit that can store work machine information and rewrite the stored work machine information, and a processing unit that collects the work machine information, and stores at least one kind of the work machine information in the first storage unit when trigger information for causing the first storage unit to start storing the work machine information occurs. The controller can change from an outside at least one of the number of data prior to a trigger of the work machine information collected by the processing unit before the trigger information, the number of data subsequent to the trigger of the work machine information collected by the processing unit after the trigger information, and a time interval during which the work machine information is collected.

Abstract: A transformer having a molded coil which can stably sustain an electric-shock free function for a long period of time. The transformer has a grounded conductive shield layer on the surface of the molded coil. The shield layer is composed of a plurality of segments so that a stable bonding of the shield layer to resin is kept for a long period of time, with the respective segments being grounded by a conductor.

Abstract: An economical and light-weight molded coil structure wherein sheet-form electrical insulator layers containing a thermosetting resin are wrapped around the inner and outer peripheries of a coil to function as a casting mold, and end-enclosing resin layers are applied to the both end faces respectively of the coil not covered with the sheet-form insulator layers. A gas is charged to be sealed in the coil.