Abstract: A cylindrical part of a rotor for an eddy current deceleration device of the present embodiment has a chemical composition consisting of, by mass %, C: 0.05 to 0.15%, Si: 0.10 to 0.40%, Mn: 0.50 to 1.00%, P: 0.030% or less, S: 0.030% or less, Mo: 0.20 to 1.00%, Nb: 0.020 to 0.060%, V: 0.040 to 0.080%, sol. Al: 0.030 to 0.100%, B: 0.0005 to 0.0050%, N: 0.003 to 0.010%, Cu: 0 to 0.20%, Ni: 0 to 0.20%, Cr: 0 to 0.10%, and the balance: Fe and impurities, and in which the total area fraction of martensite and bainite in a microstructure is more than 95.0%, and the number density of carbides having an equivalent circular diameter of 100 to 500 nm is 0.35 to 0.75 particles/?m2.

Abstract: Provided are: a sheet which has high transparency, in which yellowing due to heating is suppressed, and which has high tensile elastic modulus and excellent flexibility; and a layered body having the sheet. The sheet of the present invention contains ultrafine fibrous cellulose having a fiber width of 10 nm or less, and a cellulose derivative having a weight-average molecular weight of 1.0×104 or more and 3.0×105 or less.

Abstract: In order to add an emergency light function to a fluorescent LED lighting device, thereby increasing safety during a power outage, this LED lighting device, which can be mounted between a pair of sockets for fluorescent lighting, is equipped with a first power supply circuit, which lights the LED using direct current power obtained by converting/rectifying alternating current power supplied from the sockets, and a second power supply circuit, which lights the LED using an embedded battery. An embedded SW controller detects that a sudden drop in the current value or the voltage value in the lighting device, from a prescribed value Von when the lighting switch is turned on to a value that is essentially zero, occurs within a prescribed time T. When the sudden drop occurs two or more times in the prescribed time (FIG. 5), it is determined that a normal operation of turning off the light has been performed, and the light is turned off, and when the sudden drop occurs only once during the prescribed time (FIG.

Abstract: An LED illumination device that can be mounted between a pair of sockets provided to a fluorescent light fixture is provided with a first power source circuit that illuminates an LED using DC power obtained by converting and rectifying AC power supplied from the sockets, and a second power source circuit that illuminates the LED using an internal battery. An IC chip installed in the illumination device detects a first current conduction state in two AC power lines that supply the AC power necessary to drive the first power supply circuit and a second current conduction state in another AC power line, and, on the basis thereof, determines whether the device is in a normal illumination mode, a normal off mode, or an emergency illumination mode. On the basis of the determination results, the LED illumination device is controlled according to the mode.

Abstract: In order to add an emergency light function to a fluorescent LED lighting device, thereby increasing safety during a power outage, this LED lighting device, which can be mounted between a pair of sockets for fluorescent lighting, is equipped with a first power supply circuit, which lights the LED using direct current power obtained by converting/rectifying alternating current power supplied from the sockets, and a second power supply circuit, which lights the LED using an embedded battery. An embedded SW controller detects that a sudden drop in the current value or the voltage value in the lighting device, from a prescribed value Von when the lighting switch is turned on to a value that is essentially zero, occurs within a prescribed time T. When the sudden drop occurs two or more times in the prescribed time (FIG. 5), it is determined that a normal operation of turning off the light has been performed, and the light is turned off, and when the sudden drop occurs only once during the prescribed time (FIG.

Abstract: An LED illumination device that can be mounted between a pair of sockets provided to a fluorescent light fixture is provided with a first power source circuit that illuminates an LED using DC power obtained by converting and rectifying AC power supplied from the sockets, and a second power source circuit that illuminates the LED using an internal battery. An IC chip installed in the illumination device detects a first current conduction state in two AC power lines that supply the AC power necessary to drive the first power supply circuit and a second current conduction state in another AC power line, and, on the basis thereof, determines whether the device is in a normal illumination mode, a normal off mode, or an emergency illumination mode. On the basis of the determination results, the LED illumination device is controlled according to the mode.

Abstract: An automatic warehouse has a plurality of stock units. One stock unit has one replenishing rack and one picking rack arranged so as to oppose each other with their sides, leaving a corridor between. Each rack has a plurality of shelves in both heights and length and each shelf has a size which accommodates only one article. Shifting mechanisms are provided for shifting articles to be shifted from shelves in the replenishing rack onto shelves in the picking rack. Replenishing mechanisms are provided for shifting articles to be stocked onto the replenishing rack and picking mechanisms are provided for picking articles to be picked up from the picking rack. Transfer devices are provided for transferring articles from the warehousing berth to the replenishing mechanism and from the picking mechanism to the delivery berth.

Abstract: A three-dimensional warehouse in which its working efficiency is improved with respect to the receiving and taking out of articles and its housing efficiency is improved. The warehouse has entrance/delivery stations provided at a plurality of stories, for housing blocks provided on a vertical plane. The warehouse also has horizontal conveyors disposed to circulate along the periphery of a housing area by connecting the horizontal conveyor of the same story. The warehouse may further include a vertical conveyor for connecting the horizontal conveyors in the vertical direction. The articles can be taken in and out efficiently by driving and selecting the conveyor and the entrance/delivery stations to be used.