Abstract: A vehicle approach notification device to be applied to a vehicle includes a determination processor, a selection processor, and a sound emission controller. The determination processor is configured to perform a determination as to whether to change a currently set notification sound when it is determined that a surrounding vehicle is detected. The selection processor is configured to select a notification sound in place of the currently set notification sound from multiple notification sounds when the determination processor determines to change the currently set notification sound in the determination. The sound emission controller is configured to perform sound emission control of the notification sound selected by the selection processor.

Abstract: To provide a light and economical separable blade for a wind turbine that is also equipped with a lightning rod function. A separable blade for a wind turbine wherein the blade as a whole is assembled by connecting two electrically non-conductive part blades 1T and 1R in the lateral direction, comprising metal fasteners 4, 5, 6, and 7 for fastening together the two adjacent part blades, and lightning discharge conductive wires 8 and 9, provided in an inner blade portion. The fastener 4 is exposed on the blade surface of the part blade 1T, and is connected to the lightning discharge conductive wire 9 through the other fasteners 5, 6, and 7, or a lightning discharge conductive wire 8. The lightning discharge conductive wire 9 extends to the blade root.

Abstract: The object of the present invention is to provide a work platform vehicle having an engine drive system and an electric power drive system as the drive system for a work apparatus, which prevents its engine starting battery from becoming dead when driving the work apparatus with electric power and protects both the engine starting battery and its work battery. In an electric circuit installed in the work platform vehicle, when the engine is selected by a power selection switch that switches the power to the work apparatus, electric power is supplied to control systems S, C and C from the engine starting battery, and the electric power supply to the control systems from the work battery is cut off, and when electric operation is selected, electric power is supplied to the control systems from the work battery, and the electric power supply to the control systems from the engine starting battery is cut off.

Abstract: To provide a light and economical separable blade for a wind turbine that is also equipped with a lightning rod function. A separable blade for a wind turbine wherein the blade as a whole is assembled by connecting two electrically non-conductive part blades 1T and 1R in the lateral direction, comprising metal fasteners 4, 5, 6, and 7 for fastening together the two adjacent part blades, and lightning discharge conductive wires 8 and 9, provided in an inner blade portion. The fastener 4 is exposed on the blade surface of the part blade 1T, and is connected to the lightning discharge conductive wire 9 through the other fasteners 5, 6, and 7, or a lightning discharge conductive wire 8. The lightning discharge conductive wire 9 extends to the blade root.