Abstract: The present invention realizes a high-precision positioning with high stability, by fully utilizing a Bingham fluid characteristic possessed by an ERF (electro-rheological fluid). To this end, motion of a driving part is transmitted to a movable part via shearing stress of the ERF. Since the shearing stress can be variably controlled by adjusting an electric field to be applied to the ERF, the movable part can be moved to a target position by a predetermined output. When the movable part is to be stopped, the driving part is decelerated and stopped to thereby thermally dissipate an excessive kinetic energy of the movable part. By keeping on applying an electric field at the time of stopping, the movable part is exerted with an infinite apparent viscous stress by virtue of the Bingham fluid characteristic, to thereby suppress an influence of an external force.

Abstract: The present invention relates to a safety ensuring apparatus for ensuring the safety of an operator.A mechanical moving part is surrounded by a safety enclosure with a door of the safety enclosure provided with a door lock device constructed such that the door lock device releases a door lock when a current is supplied from outside to excite a solenoid incorporated therein. The apparatus is constructed such that a lock is released when the mechanical moving part is stopped. Moreover, the construction incorporates a moving part monitoring sensor which monitors if the mechanical moving part is stopped. When mechanical moving part is stopped, the moving part monitoring sensor generates, without a negative operation, an output signal of logic value 1 corresponding to a high energy condition, and the solenoid of the door lock device is excited by this output signal.As a result, the lock of the door lock device is released once the mechanical moving part has stopped.

Abstract: A safety apparatus wherein a sensor (10.sub.n through 15.sub.n, 16) for transmitting object (M) detection information as a reduction in the output signal energy, is used as a human detection sensor, while a sensor (21-26) for transmitting object (M) detection information as an increase in the output signal energy is used as a work piece detection sensor, and drive of a mechanical moving portion is permitted only when the logical OR output of both sensors has a logical value of "1" corresponding to the high energy condition, thereby reliably ensuring excellent operator safety in a fail-safe manner.

Abstract: A method for assuring a safe work space operates so that a work enable signal is generated only when absence of workers from the work space where the workers work in cooperation with a machine is detected. The work enable signal has a logical value of 1 corresponding to a high energy state and only this signal can initiate activation of the machine sharing the subject work space thereby assuring safe environments for workers.

Abstract: The present invention is to provide a fail-safe slide operation control device for a press of simple structure when the electronic circuit by fail-safe signal processing as a circuit for monitoring overrun and confirming the OFF condition of an operation button, which is important function to control the slide, is used instead of a contact circuit composed of relays.

Abstract: An articulated industrial robot comprising a supporting post mounted on a base; a forearm provided at its end with a wrist having at least one degree of freedom; a pair of upper arms pivotally connected at their one ends to the supporting post and at their other ends to the forearm, the upper arms being disposed in parallel with each other at both sides of the supporting post and the forearm; an upper arm rotary driving source mounted in the supporting post; an upper arm connecting mechanism for connecting the output of the upper arm rotary driving source to the upper arm through a reduction gear; a forearm rotary driving source mounted on one of the upper arms; a forearm connecting mechanism for connecting the output of the forearm rotary driving source to the forearm through a reduction gear; a wrist posture controlling rotary driving source provided on the other upper arm or on the supporting post; and a wrist posture controlling connecting mechanism for connecting the output of the wrist posture controlli

Abstract: A perfect layer coil winding apparatus capable of automatically forming a perfect layer coil from the initial stage of winding operation without being affected by non-uniformity in diameter of a wire and width of a bobbin for winding the wire thereon is disclosed which performs the following operation: the width of the bobbin is calculated from the position of each of two flanges which is detected by each of two electric micrometer, the number of turns per layer is calculated from the width of bobbin and the diameter of wire, the winding width of the bobbin required to conduct the perfect layer coil winding from the number of turns per layer to adjust the winding width of the bobbin, the supply position of wire is adjusted on the basis of the position of first flange, the diameter of wire and the standby position of a pair of rollers, the bobbin is rotated with the wire pushed against the first flange by a push plate to start the winding operation, and when the degree of rotation of the bobbin reaches a prede

Abstract: A covered wire wrapping tool comprising a covered wire-cutting and cover-stripping device for cutting an elongated continuous covered wire into covered wires of a predetermined length and for stripping covers from a leading and trailing end portions of a severed covered wire, and a wrapping bit device including a single bit having therein an eccentric groove into which the cover-stripped leading and trailing end portions formed by the covered wire-cutting and cover-stripping device are successively loaded. The bit with the cover-stripped leading or trailing end portion loaded in the eccentric groove is rotated to wrap and connect the cover-stripped leading or trailing end portion about and to a terminal of an electrical component.

Abstract: A coil-winding machine is disclosed in which an annular member on which wire is to be wound is inserted into a traveling ring and a shuttle and held in position. A predetermined length of wire is stored in the shuttle. The trialing end of the wire stored in the shuttle is fixed on the annular member. The shuttle is rotated in the direction of storage, while at the same time rotating the traveling ring in the direction of storage by the tension of the wire or a turning effort transmitted from a driving system, thus winding the wire on the annular member in the direction of storage. After forming a crossover wire, the wire is fixed on the annular member. The traveling ring is rotated in the direction opposite to that of storage.

Abstract: Equipment for producing a high voltage rectifying unit wherein there is a resin ingredient tank and a curing agent tank for storing separately the resin ingredient and the curing agent, a closed mixer for mixing the resin ingredient and the curing agent, a vacuum chamber for injecting a mixed thermo-setting resin composition into the high voltage rectifying unit, a chamber for defoaming the injected resin composition, a furnace for curing the injected resin composition by heating, and a carrier apparatus covered to isolate the external atmosphere which may carry the resin composition-injected high voltage rectifying unit from the defoaming chamber to the curing furnace, whereby the procedures from vacuum injection to curing can be carried out continuously and automatically.