Abstract:
An oil-sealing structure of a motor including a bearing supporting a motor shaft, and an oil seal provided in the space between the motor shaft and a bracket and positioned close to one end of the motor shaft while separated by a predetermined distance from the bearing. An outer peripheral surface of the motor shaft faces, within the space, an inner peripheral surface of the bracket. Steps are formed on the motor-shaft outer peripheral surface and positioned between the bearing and the oil seal, with their diameter increasing in a stepped manner toward the bearing. A stepped groove is formed on the bracket inner peripheral surface and positioned between the bearing and the oil seal, with its diameter decreasing in a stepped manner toward the bearing. An oil outlet is also formed on the bracket inner peripheral surface for discharging oil which has penetrated beyond the oil seal. The structure is capable of highly secure prevention of oil penetration into the motor.
Abstract:
A high-activity nickel type catalyst, which comprises a carrier compound of high-purity ultra-fine single-crystal magnesia having an average particle size of 100 to 2000 .ANG. or a BET specific surface area of 6 to 170 m.sup.2 /g and metallic nickel or nickel oxide uniformly and thoroughly dispersed on the surface of the carrier in a supported amount of 0.1 to 50% by weight as metallic nickel. The catalyst exhibits a high activity in the steam reforming of hydrocarbons, methanation of synthesis gases, and hydrogenation of cyclic and alicyclic unsaturated hydrocarbons.
Abstract:
A vehicle window opening/closing device 1 comprises: an inversion pulley 12 provided to an upper portion of a guide rail 10; a drive mechanism 14 provided, in line, to a lower end of the guide rail 10, and constituted so that a speed reduction mechanism including a worm and a worm wheel, and a drum connected concentrically with the worm wheel are received into a same housing 15; a close-side cable 24, whose one end is fixed to the drum and whose other end is coupled to a carrier plate 11 via the inversion pulley 12; an open-side cable 25, whose one end is fixed to the drum and whose other end is coupled directly to the carrier plate 11; and an electric motor 17 having an armature coupled mechanically to the worm, the electric motor being capable of being coupled to the drive mechanism 14.
Abstract:
An encoder includes a disc-shaped disk disposed so as to be rotatable about a rotation axis and having at least one ring-shaped track in which a rotating grating is formed and at least one fixed grating which is fixedly disposed opposed to the disk so that the fixed grating and the rotating grating construct a diffraction interference optical system. Each of a plurality of slits included in the at least one rotating grating is formed along a curved line obtained by making each of a plurality of radial lines using the rotation axis as a center curved in the circumferential direction at a predetermined curve degree so that a pitch of the slits can be set to a predetermined value.
Abstract:
An encoder includes: a main scale having two or more band-shaped tracks in each of which an optical main grating is formed so that longitudinal direction of the main scale corresponds to a measurement axis direction; and an index scale opposed to the main scale so as to form a diffraction interference optical system in cooperation with the main grating, disposed so as to be movable relative to the main scale in the measurement axis direction, and in which two or more optical index gratings are formed. A plurality of slits included in the main grating in at least one track are formed so as to be inclined at a predetermined inclination angle from a direction perpendicular to the measurement axis direction so that pitch of the slits in the track becomes equal to the pitch of the slits in the at least one other track.
Abstract:
A tack labeler includes a reeling-out unit for reeling out a label formation base material pair from a base material pair roll set on a roll holder; a base material pair accumulation unit for accumulating the label formation base material pair; a separating-delivering unit for pulling out the label formation base material pair from the base material pair accumulation unit, separating the label formation base material pair into respective label formation base materials, and delivering the respective label formation base materials; cutting units for successively cutting connection portions of cut lines formed on each of the label formation base materials; adhering units for adhering the tack labels cut off from each of the label formation base materials onto containers conveyed to adherence positions; and base material collecting units for winding up and collecting each of the label formation base materials.
Abstract:
An optical encoder, with a simple structure, that can output a high-precision origin signal is provided.Rotary origin phase slits (112), which are formed into a pattern of linear slits arranged in parallel at equal pitches, are prepared for a rotary disk (110), while fixed origin phase slits (122), which are formed into a pattern of linear slits arranged in parallel at equal pitches, are prepared for a fixed origin phase scale (120). Light emitted by a light source (130) passes through an ejection window (121) and irradiates the rotary origin phase slits (112). The light reflected at the rotary origin phase slits (112) passes through the fixed origin phase slits (122) and is detected by a light-receiving element (140). Then, based on the detection signal, an origin signal is generated.
Abstract:
A cost-reduced, downsized automatic opening/closing apparatus for vehicle is achieved by reducing the number of components thereof. A case of a driving unit is provided with a drum housing portion, and a driving drum is rotatably accommodated in the drum housing portion. An electric motor is attached to the case, and the driving drum is driven for rotation by the electric motor. A cable connected to a sliding door is wound around the driving drum. By rotation of the driving drum, the sliding door is opened and closed as being drawn by the cable. The case is provided with a substrate housing portion integrally with the drum housing portion, and a control substrate for controlling an operation of the electric motor is accommodated in the substrate housing portion.
Abstract:
The invention provides a solid electrolytic capacitor wherein the anode has a dielectric oxide film of a structure less susceptible to damage due to mechanical stresses and which is diminished in leakage current and less prone to short-circuiting, and a process for fabricating the capacitor. The capacitor of the invention comprises an anode of aluminum having a dielectric oxide film formed over a surface thereof from amorphous alumina, and is characterized in that a plurality of tunnel-shaped etching pits are formed in the anode. The process of the invention for fabricating the solid electrolytic capacitor includes the steps of forming a plurality of tunnel-shaped etching pits in an aluminum material, effecting anodic oxidation by immersing the aluminum material in an electrolytic solution containing oxalic acid or the like, and effecting anodic oxidation by immersing the aluminum material in an electrolytic solution containing boric acid or like inorganic acid or a salt thereof or containing adipic acid or like organic acid or a salt thereof and applying a voltage at least three times the rated voltage of the capacitor.
Abstract:
In order to solve various problems such as a reduction in a paint resin with the progress of electrodeposition coating treatment and remelting of a coating film or the occurrence of pinholes caused by an increased concentration of an electrolyte as a result of the reduction, upsizing of a hollow electrode with a membrane for electrodeposition coating combined with a barrier membrane (e.g., an ion exchange membrane) and an increase in the number of components should be avoided. In order to realize this, a barrier membrane 20 such as an ion exchange membrane is attached to the exterior surface of an electrode main body 10, which is in a hollow state made of a conductive material and configured so as to allow a liquid to pass through freely between the inside and outside of the electrode serving as a support.