Abstract: To provide an electrode ensuring excellent characteristics even when the electrode formed on a foil-like collector is compressed under a comparatively low temperature condition. An electrode manufacturing method comprising the steps of: coating an active material layer onto a surface of a collector excluding a non-coating area to form a coating area; drying the coated active material layer; and increasing a density of the dried active material layer by compression to form a high density area. In the compression step, a low density area having a lower density than the high density area is formed in a strip-shaped coating area adjacent to the non-coating area of the active material layer.

Abstract: An object of the present invention is to provide an electric actuator having a structure capable of reducing an external force or impact acting on a screw shaft when a piston rod is at a stretched position. An electric actuator includes a nut, a piston rod, recesses, keys, holes, and a tapered portion. Into the nut, a screw shaft is screwed. The piston rod moves linearly via the nut. The recesses are formed on an outer circumferential surface of the nut. The keys are each provided to a recess. The tapered portion is formed on an inner wall of the cylinder body. The piston rod advances to move the keys outward to cause the keys to fit to the tapered portion to block retraction of the piston rod.

Abstract: An electric actuator includes a first port, a second port, and a cylinder chamber connecting passage. The first port is formed on an inner face of a rod-side cylinder chamber of a cylinder body. The second port is formed on an inner face of a head-side cylinder chamber of the cylinder body. The cylinder chamber connecting passage connects the first port and the second port. In the electric actuator, a piston part of a piston rod closes the first port 6 when the piston rod advances.

Abstract: A fluid is supplied and discharged to and from a cylinder. A body portion is fixed to a fixed-side structure, and the cylinder is provided integrally with the body portion. A piston defines a cylinder chamber inside the cylinder and slides on an inner wall of the cylinder. A rod is provided integrally with the piston and is displaced so as to extend from and contract into the cylinder. A link member is installed parallel to the axial direction of the cylinder or installed so as to extend obliquely to a direction parallel to the axial direction of the cylinder, and a first end of the link member is pivotably connected to a movable-side structure. A connecting member is fixed to the rod, and a second end of the link member is pivotably connected to the connecting member.

Abstract: An object of the present invention is to provide an electric actuator having a structure capable of reducing an external force or impact acting on an screw shaft when a piston rod is at a stretched position. An electric actuator 1 includes a nut 5, a piston rod 4, recesses 6, keys 7, holes 8, an a tapered portion 9. Into the nut 5, a screw shaft 3 is screwed. The piston rod 4 moves linearly via the nut 5. The recesses 6 are formed on an outer circumferential surface of the nut 5. The keys 7 are each provided to a recess 6. The tapered portion 9 is formed on an inner wall of the cylinder body 2. The piston rod 4 advances to move the keys 7 outward to cause the keys 7 to fit to the tapered portion 9 to block retraction of the piston rod 4.

Abstract: An object of the present invention is to provide an electric actuator having a structure capable of reducing an external force or impact acting on a screw shaft when a piston rod is at a stretched position. An electric actuator 1 includes a first port 6, a second port 7, and a cylinder chamber connecting passage 9. The first port 6 is formed on an inner face of a rod-side cylinder chamber 5a of a cylinder body 2. The second port is formed on an inner face of a head-side cylinder chamber 5b of the cylinder body 2. the cylinder chamber connecting passage 9 connects the first port 6 and the second port 7. In the electric actuator 1, a piston part 4a of a piston rod 4 closes the first port 6 when the piston rod 4 advances.

Abstract: An actuator includes a cylinder, a piston that is disposed in the cylinder and moves by supply and exhaust of working oil to and from the cylinder, a movable rod that is connected to the piston, a screw shaft, at least a part of which is inserted into the movable rod, a nut that is threaded to the screw shaft and moves integrally with the piston, and an electric motor that rotates the screw shaft forward or backward.

Abstract: An actuator includes a cylinder, a piston that is disposed in the cylinder and moves by supply and exhaust of working oil to and from the cylinder, a movable rod that is connected to the piston, a screw shaft, at least a part of which is inserted into the movable rod, a nut that is threaded to the screw shaft and moves integrally with the piston, and an electric motor that rotates the screw shaft forward or backward.

Abstract: A motion transforming mechanism comprises a plate assembly and a toothed rail. The plate assembly is constituted by at least three rotation plates having a common rotation axis and each having a plurality of teeth, the rotation plates being respectively formed with cranked through bores. The toothed rail is formed with a plurality of teeth held in mesh with the teeth of rotation plates. The motion transforming mechanism further comprises a drive motor assembly constituted by a rotor unit rotatably received in the cranked through bores and a stator unit accommodated in the rotor unit. The rotation plates are rotated with respect to their common rotation axis by the rotation of the rotor unit with respect to stator unit. The motion transforming mechanism thus constructed requires no external electric motor and accordingly is able to be more easily assembled with various systems.

Abstract: The present invention is intended to enable the change of the operating mode of an observation apparatus of a video system between a fluorescent observation mode and an ordinary observation mode and to enable the observation apparatus to reproduce a clear image for observation. The observation apparatus in accordance with the present invention uses a principle that an image pickup system provides three color signals, namely, R-, G- and B-signals. The image pickup system of the observation apparatus is provided with an illuminating light selecting means for selectively using light in a specified wavelength region as illuminating light, and a color signal selecting means for selectively providing the color signals. When the specified wavelength region is the visible region, at least the color signals in a wavelength region including the specified wavelength region including the illuminating light are cut off.

Abstract: A motion converting mechanism comprising a feed member provided with a screwed portion, a screw nut member engaging with the screwed portion of the feed member, a support member rotatably supporting the feed member and the screw nut member, drive means for imparting a rotational motion to the feed member, the rotational motion of the feed member being converted into a linear motion through the screw nut member, and a speed control unit provided between the drive means and the screw nut member and constructed such that it rotates the screw nut member in the same direction as that of the feed member and in the direction opposite to the rotation of the feed member so that a speed of the linear motion is variably controlled.

Abstract: A rotary motion to longitudinal motion converting mechanism comprising a passive rack with a plurality of teeth, a plurality of active racks respectively having a plurality of teeth having the same pitch as that of the teeth of the passive rack and meshing with the passive rack, and a plurailty of rotatable crankshafts respectively having eccentric circular portions different in phase from one another and respectively having the active racks supported on the eccentric circular portions in such a manner that the passive rack is moved in its longitudinal direction through the active racks by rotary motions of the plurality of rotatable crankshafts.

Abstract: A motion converting mechanism comprising a feed member provided with a screwed portion, a screw nut member engaging with the screwed portion of the feed member, a support member rotatably supporting the feed member and the screw nut member, a single drive unit for imparting a rotational motion to the feed member, and a braking unit for braking the rotational motion imparted to the screw nut member so the feed member is given a linear motion.

Abstract: In a stability compensating circuit of an actuator system which has an actuator that is actuated in response to an input signal and has an object to be controlled by the actuator and includes a vibrational component and wherein the stability of the actuator system is compensated by controlling a deviation signal between the input signal to the actuator and a feedback signal from the actuator, the improvement comprising a moving average filter for averaging the deviation signals to the actuator at intervals of a moving average time of the filter.

Abstract: In a servo control apparatus wherein a load is controlled by a deviation between a command signal corresponding to a target value and a detected position signal of an actuator of a servo system and which has a plurality of the servo systems arranged in parallel with respect to the load, the servo control apparatus comprising: a forward circuit for producing a signal that changes in response to an external force exerted on the actuator; first feedback circuit for detecting the signal of the forward circuit and feeding the same back to the command signal; and second feedback circuit for feeding the detected position signal of the actuator back to the command signal, producing a deviation signal representative of a deviation between the position signal and the command signal, integrating the deviation signal, and inputting the integrated signal to the forward circuit.

Abstract: In a coulometric titration method, during a preparation step before a titration step a composition to be titrated is accumulated in an electrolyte.