摘要:
To provide a static eliminating method and apparatus therefor which applies a high voltage to one of a pair of electrode needles and earths the other thereof, and eliminates the need of an earthed ground plate. A single or several electrodes are provided, having one pair of electrode needles for individually applying positive and negative high voltages facing each other in a holding member made of insulating material. Changeover is performed in a short period between an applying status where a positive or negative high voltage is applied to one of the electrode needles and the other electrode needle is connected to the ground, and an applying status where the electrode needle which is applied the high voltage is connected to the ground and a high voltage having a reverse polarity to the high voltage is applied to the electrode needle connected to the ground, thereby performing static elimination by acting positive and negative ions generated based on high voltage of the electrode needles on the object to be static-eliminated.
摘要:
A frame of a vehicle supports a cabin via four vibration-isolating apparatuses. A vibration-isolating supporting plane, which contains the four vibration-isolating apparatuses, passes through a center of gravity point G of the cabin. Due to an arranged structure of the vibration-isolating apparatuses, shaking of the center of gravity point of the cabin due to vibration transferred from the frame at times of riding on poor roads or at times of operation can be kept small, as compared with a vibration-isolating supporting structure in which the vibration-isolating supporting plane is far apart from the center of gravity point G A vibration-isolating supporting structure which does not increase shaking of a center of gravity of the cabin is provided.
摘要:
When respective magnetic fluxes are generated by coils and pass through a plate spring, an electromagnetic force, which results from the magnetic flux, is generated within a plate spring, screws, and a magnetic flux-passing member. Therefore, a brake pad is separated from a slide table in accordance with an action of the electromagnetic force exerted against a resilient force of the plate spring. On the other hand, when generation of respective magnetic fluxes from the coils is halted, the electromagnetic force is extinguished, and thus the brake pad presses against the slide table, in accordance with an action of the resilient force of the plate spring.
摘要:
This invention improves response by preventing a steady-state difference and a disturbance from occurrence even when the volume of a pressure chamber of an air cylinder varies dramatically. In a method for controlling an air cylinder such that air is supplied to and exhausted from pressure chambers of the air cylinder by air servo valves; pressures in the pressure chambers are detected by pressure sensors; signals of the detected pressures are feedback to a controller; and the degrees of opening of the air servo valves are adjusted by corresponding PID adjusters of the controller on the basis of the respective differences between instruction values and detection values, the displacement of the rod of the air cylinder is detected by a displacement sensor, and a detection signal of the displacement is fed back to the controller so that a gain of the PID adjuster is always changed in accordance with the detection signal of the displacement.
摘要:
A suck back valve comprises a linear actuator which displaces a second diaphragm through a stem, an encoder which detects a displacement amount of the linear actuator, and a flow amount controller for controlling a pilot pressure supplied to an ON/OFF valve mechanism.
摘要:
A positioning control system has a disturbance observer for estimating a disturbance from a displaced distance of a cylinder of a controlled object, and feeding back an estimated disturbance. The positioning control system also includes a saturation element and a low-pass element disposed in a feedback loop including the disturbance observer, and a saturated value changer for changing a saturated value of the saturation element based on a deviation. The saturation element is disposed in a forward path of a positive-feedback minor loop, whereas the low-pass element is disposed in a feedback path of the positive-feedback minor loop.
摘要:
The invention includes a moving step of moving a piston to a target position by supplying and discharging compressed air to and from pressure chambers on opposite sides of the piston of a pressure cylinder by driving servo valves by a controller, a clamping step of allowing a pressure member at a tip end of a piston rod to touch a workpiece softly in this target position, and a pressing force applying step of pressing the workpiece with the pressure member in a required force.
摘要:
A plurality of permanent magnets are embedded at predetermined pitches &tgr;p in a longitudinal direction in a field yoke composed of a magnetic substance so that adjacent magnet poles have opposite polarity, and a plurality of electromagnets, which have magnetic pole pitches &tgr;e≈(2n+1)&tgr;p of preset intervals provided that n is 0, 1, 2, . . . , which are disposed at predetermined pitches &tgr;g=(2s+1/m)&tgr;e in the longitudinal direction of the field yoke provided that m is a number of exciting phase and s is 1, 2, 3, . . . , and which are separated from the field yoke by a predetermined gap while opposing to the field yoke, are provided. The field yoke is driven by successively exciting the electromagnets.
摘要:
This invention relates to a bicycle having a driving force transmitting mechanism with oscillating fulcrum point. A sliding part is provided with a dust cover or a brush to prevent dust and the like from being entered therein and to remove the dust, if entered, therefrom. When a rider steps on the pedals alternatively, force of the pedal levers generated by the oscillation of the pedal levers is transmitted to the sprocket through the crank lever. When the pedal levers oscillate, an oscillating fulcrum point of the pedal lever is moved in a lateral direction within the sliding part. The rotating force of the sprocket is transmitted to the rear wheel through a chain. Even if the locus Q of motion of the pedal is different in the first half period (a stepping-on period) and the second half period (a stepping-up period), a smooth movement of the pedal is assured. Such a smooth movement can be kept enough by the dust cover.
摘要:
Internal shorting of large capacity multi-layer type nonaqueous electrolyte secondary cells is minimized by inclusion of heat resistant porous film layers adjacent thermally fusible resin microporous films disposed between negative electrodes and positive electrodes in an electrode assembly and between adjacent electrode assemblies stacked together to provide an electrode stack. The heat resistant porous film layers may be organic or inorganic temperature resistant sheet materials exhibiting heat resistance to temperatures of at least about 600.degree. C.