摘要:
A plurality of centering parts 13 corresponding to drill diameters are disposed in a drill centering tool 3 and the drill centering tool 3 is supported at the side of a drill polishing machine 1. A drill 2 to be polished can be easily and accurately centered in the centering part 13 of the drill centering tool 3. In particular, the drill 2 is centered by fitting the front end portion of the spiral drill groove 14 of the drill 2 to a centering pawl 15 of the drill centering tool 3, chucking the centered drill 2 in a drill chuck 4 of the drill polishing machine 1, and polishing by fitting the cutting edge 5 to be polished at the front end of the drill 2 to the polishing surface of a grinder. Even if the drill diameters are different, drills to be polished can be easily centered and polished.
摘要:
A low-pressure pump supplies oil stored in a steering case to a steering device as lubricating oil via a steering lubricating circuit. A high-pressure pump supplies the oil stored in the steering case to a clutch via a high-pressure circuit. A transmission lubricating circuit branches off from the high-pressure circuit via a relief valve and supplies lubricating oil to a transmission device. A transmission-lubricating assist circuit is provided so as to branch off from the steering lubricating circuit and is connected to the transmission lubricating circuit. A transmission case stores the oil used to lubricate the transmission device. A scavenging pump returns the oil stored in the transmission case to the steering device.
摘要:
In order to decrease the number of handling components of a parking brake unit without increasing a length of a wheel base, there is provided a forklift including a main input shaft which is rotationally driven by a hydraulic motor, a differential input shaft which rotates by the rotation of the main input shaft, and a differential mechanism which is provided between the differential input shaft and a front axle, the forklift being configured to run by transmitting power of the hydraulic motor to the front axle through the main input shaft, the differential input shaft, and the differential mechanism, wherein an idle shaft is disposed so as to be parallel to the differential input shaft, a power transmission mechanism obtained by meshing gears and is interposed between the differential input shaft and the idle shaft, and then a parking brake unit is provided in the idle shaft.
摘要:
A first microphone device according to the present invention comprises a pair of directional microphones with high directivity in a sound collecting direction, a pair of nondirectional microphones with low directivity in the sound collecting direction, and a casing accommodating the pair of directional microphones and the pair of nondirectional microphones. The pair of nondirectional microphones is arranged so that sound collecting directions thereof are outward from both side surface walls of the casing, while the pair of directional microphones is arranged so that sound collecting directions thereof are outward from a front surface wall of the casing and intersect each other in vicinity of the front surface wall. All or a part of the pair of directional microphones is accommodated in a space sandwiched by the pair of nondirectional microphones.
摘要:
A fluorescent tube power supply including an inverter power supply which outputs a DC voltage, and an inverter which converts an output of the inverter power supply to an AC; wherein a power stabilizing unit for stabilizing a power input to the inverter is arranged between the inverter power supply and the inverter; and a feedback control of the inverter power supply is performed based on an output of the power stabilizing unit. The power stabilizing unit detects a current flowing between the inverter power supply and the inverter, and the feedback control of the inverter power supply is performed based on the current.
摘要:
The invention relates to a solid oxide electrolyte fuel cell (SOFC) which can be used as a cell for water electrolysis, CO.sub.2 electrolysis and other electrolyses, as well as for power generation. In a SOFC in which both surfaces of a power generation film comprising three layers of a fuel electrode, a solid electrolyte, and an oxygen electrode are formed with a number of dimples, the thickness of a yttria-stabilized zirconia film that constitutes the solid electrolyte is 5 to 100 .mu.m, and the thickness of an oxygen electrode material that constitutes the oxygen electrode which is provided on one side of the yttria-stabilized zirconia film is 200 to 2,000 .mu.m. As a result, the power generation performance can be greatly improved and a sufficiently strong oxygen electrode material prevents a thin yttria-stabilized zirconia film from being damaged in manual operations.
摘要:
In order to decrease the number of handling components of a parking brake unit without increasing a length of a wheel base, there is provided a forklift including a main input shaft which is rotationally driven by a hydraulic motor, a differential input shaft which rotates by the rotation of the main input shaft, and a differential mechanism which is provided between the differential input shaft and a front axle, the forklift being configured to run by transmitting power of the hydraulic motor to the front axle through the main input shaft, the differential input shaft, and the differential mechanism, wherein an idle shaft is disposed so as to be parallel to the differential input shaft, a power transmission mechanism obtained by meshing gears and is interposed between the differential input shaft and the idle shaft, and then a parking brake unit is provided in the idle shaft.
摘要:
A synchronous rectifier circuit (DC-DC converter) includes a CR integration circuit and a discharge circuit. The CR integration circuit outputs a voltage that varies at delayed timing as compared with a voltage induced in a secondary-side main winding. The discharge circuit discharges a gate voltage of a rectifier transistor as a result of conduction of a discharge transistor in response to the output voltage from the CR integration circuit. According to such a configuration, the rectifier transistor is turned off earlier than the timing of switching of polarity of voltages induced in the secondary-side main winding and a secondary-side auxiliary winding in response to turn-on of a primary-side transistor.
摘要:
A microphone device according to the present invention comprises a plurality of microphones and a microphone holder for holding the microphones. The microphones include a first sound receiving part and a second sound receiving part. The microphone holder comprises a holder body, and the holder body includes a plurality of microphone engaging recesses facing in different directions from each other and to be removably in engagement with the plurality of microphones. These microphone engaging recesses are to be in engagement with the plurality of microphones with the first sound receiving part facing the outer side of the holder body.
摘要:
A fluorescent tube power supply including a rectification circuit, a smoothing circuit, an inverter, and a control circuit for controlling the inverter, further includes a current detecting unit for detecting an input current of the inverter. The control circuit is stopped based on an output signal of the current detecting unit when the input current increases.