Abstract:
A DC power source unit supplies a DC voltage to an electrically powered tool through an adapter and also charges a battery pack used as an alternative power source of the tool. With the DC power source unit of the invention, charging of the battery pack is stopped and supply of power to the tool is started instantaneously when the power switch of the tool is turned ON. The DC power source unit is also capable of outputting selective one of different drive voltages corresponding to the rated drive voltages of a variety of different tools and capable of charging battery packs with different battery voltages.
Abstract:
An adapter includes a cord, a fitting portion, a voltage setting unit, and a fitting prevention mechanism. The cord is adapted to connect to a DC power source unit in order to receive DC voltage from the DC power source unit. The fitting portion is for insertion into the battery holding space of any one of a plurality of cordless power tools. The fitting portion receives the DC voltage received through the cord and supplies the DC voltage to a cordless power tool in which the fitting portion is properly inserted. The voltage setting unit is for setting voltage supplied through the fitting portion to the cordless power tool. The fitting prevention mechanism operates in linked association with operation of the voltage setting unit to prevent proper insertion of the fitting portion into a cordless power tool that has a rated voltage different from the voltage set by the voltage setting unit.
Abstract:
A method of controlling a mounting unit having a shaft operated under servo control using a current driven actuator, comprises the steps of detecting interrruption of the servo control, and switching from a positioning control mode to a constant current control mode for supplying an constant amount of current to the shaft actuator to suspend the shaft. In an embodiment the method further includes engaging a gripping device, for holding the shaft, so as to keep the shaft from free-falling when interruption of the servo control is detected, and maintaining the constant current control mode at least until the gripping device grips the shaft. Still further, the current control mode optionally includes the steps of maintaining the supply of the constant amount of current for a predetermined period of time, and disengaging power supplied to the actuator after the predetermined period of time has elapsed.
Abstract:
A control device controls to move a chucking mechanism part to a first stop height 451 at a first speed, then at a second speed lower than the first speed before the chucking mechanism part comes in touch with a part from the first stop height, and stop when the chucking mechanism part touches the part, thereby to hold the part. So, a shock to the part when the part is held is reduced in the constitution, and the apparatus becomes light-weight because of the elimination of a shock-absorbing mechanism, hence realizing high-speed mounting.
Abstract:
Elements comprising a non-oriented substrate and a thin film of a compound of the following general formulaLa.sub.1-x-y Sr.sub.x Ba.sub.y MeO.sub.3-.delta.in which 0.ltoreq.x.ltoreq.0.8, 0.ltoreq.y.ltoreq.0.5, 0.1.ltoreq.x+y.ltoreq.0.8, and 0.ltoreq..delta..ltoreq.0.5 and Me is at least one member selected from the group consisting of Mn, Fe and Co. The film is crystallographically oriented in a certain direction The substrate is made of an amorphous material or a metal, or is constituted of an amorphous film formed on any bodies such as of a polycrystalline material. On the oriented thin film is further formed a perovskite oxide film or a superconductive film. The process for making the thin film of the above formula is also described.
Abstract:
A heat storage material is described which comprises a mixture of sodium sulfate decahydrate or sodium thiosulfate pentahydrate, and urea. The mixing ratio by mole of the sulfate decahydrate to urea is in the range of 1:1 to 1:3 and the mixing ratio by mole of the thiosulfate pentahydrate to urea is in the range of 1:2 to 1:8.
Abstract:
A cerium-activated yttriumaluminate phosphor such as YA10.sub.3 :Ce featuring an enhanced luminous intensity is produced by adding a barium compound exemplified by BaO, BaCO.sub.3, Ba(OH).sub.2 and BaF.sub.3 to a mixture of source materials of the host material and the activator and baking the resulting mixture at a usual temperature ranging from 1000.degree. to 1400.degree. C. The barium compound preferably amounts to 0.001-8 mol% of the yttriumaluminate and may alternatively be introduced into a preliminarily baked and pulverized mixture of the source materials.
Abstract:
An electric tool including: a motor; a housing including, a motor housing accommodating the motor, and a handle housing having one end connected to the motor housing and another other end configured to be provided with a detachable battery pack; an output part partially accommodated in the motor housing and configured to be driven by the motor; and a control board accommodated in the motor housing and configured to control the motor.
Abstract:
Disclosed herein is a solid-state image pickup device, including a pixel, the pixel including: a light receiving section; a charge transfer path; a transfer electrode; a readout gate section; and a readout electrode.