Abstract:
In a pneumatic actuator wherein air pressure in a diaphragm compartment (38) is changed by controlling solenoid valves (39, 39 and 41) thereby to output a displacement; an intake solenoid valve (39) has a spring (30h) which penetrates a center part of a fixed iron core (39e) and urges a movable iron core (39f), and the solenoid valves (39, 39 and 41) are mounted on a housing (31) in a triangular disposition with terminal side thereof faced to the housing (31), and besides, one of terminals of each solenoid valve (39 or 41) is secured with each other at a center part of the triangular disposition, and the other terminals are disposed outward of the triangular disposition.
Abstract:
A wire mounting structure for a vehicle cruise control has an upper plate 20a of a connector 20 formed with a through-hole 21a and a notch 22, and a lower plate 20b formed with an enlarged hole 21b for receiving the lower end of a rod 6b.
Abstract:
Provided is an electric driving device including an electric motor (1), and a control device (20) arranged on an axis line of a rotation shaft (2) of the electric motor, for controlling the electric motor. The electric motor includes a motor terminal (13) extending toward the control device in parallel to a direction of the axis line of the rotation shaft, and a slit (13a) is formed at an end portion of the motor terminal on the control device side. The control device includes a motor connection terminal (34) formed on an extension line of the motor terminal and connected to the motor terminal. The slit of the motor terminal is press-fitted and fixed to the motor connection terminal, and an insulating member (33) for holding the motor connection terminal is fixed to the heat sink (35).
Abstract:
An electronic control apparatus can be reduced in size and cost by eliminating certain parts such as a power board, etc. The apparatus includes a housing, a heat sink attached to one end of the housing, semiconductor switching elements 2 mounted on the heat sink, a circuit board arranged in opposition to the heat sink, and a plurality of conductive plates electrically connecting the circuit board and the semiconductor switching elements. The heat sink is composed of a heat sink main body, and an anodized aluminum film formed at least on a surface of the heat sink main body at a side at which the power device is mounted thereon, and the heat sink main body has outer peripheral end faces arranged in opposition to inner wall surfaces of an opening portion of the housing.
Abstract:
An electric power steering apparatus requires no external connecting member connecting between a power main body and a control main body, and hence can be reduced in size and cost, and the reliability of electrical connection between the power main body and the control main body can be improved. High current parts constituting the power main body and low current parts constituting the control main body are mounted on opposite sides of a circuit board, and are electrically connected with one another via conductor layers of the circuit board and through holes formed therein.
Abstract:
In a press molding apparatus for press molding a plurality of glass materials into a plurality of glass optical elements by the use of a pressing mold including upper and lower molds each of which has a plurality of molding surfaces, at least one of the upper and the lower molds is a heat generator within which heat is generated when the heat generator is subjected to a high-frequency induction heating by an induction heating coil. The heat generator having a plurality of shape-processed portions (130) produced by partially processing a shape of the heat generator in order that a temperature distribution of the heat generator is adjusted. The apparatus simultaneously press forms, into the glass optical elements, the glass materials supplied between the molding surfaces of the upper and the lower molds which are subjected to the high-frequency induction heating.
Abstract:
An electric power steering apparatus can improve heat dissipation of a power board. A heat sink is mounted on the power board in surface contact therewith, on which power board there is mounted a bridge circuit including a plurality of semiconductor switching elements for switching an electric current supplied to an electric motor in accordance with torque assisting a steering wheel. The heat sink has a plurality of protrusions formed on a surface thereof at a side opposite to the power board.
Abstract:
Disclosed are a molding apparatus for glass optical elements a plurality of molds each constituted of an upper mold and a lower mold, a matrix supporting the molds, and heating means wound around the matrix for heating the molds, wherein the matrix extends in a longitudinal form and has a constant width, wherein the plurality of the molds are arranged in the matrix in a line so that the center of each mold is located on a center line of the matrix, and wherein a distance between the heating means and the matrix is constant at least at an edge of the matrix in a transverse direction, and a molding method for optical elements comprising the steps of: softening a plurality of glass material pieces by heat; and making a simultaneous press molding of the glass material pieces with a plurality of molds, constituted of upper and lower molds, arranged in a longitudinal form matrix, in a line extending in a longitudinal direction, wherein each mold is heated by thermal conductance from the matrix heated by heating means wound around the matrix, to heat at least substantially equally two opposite positions in a horizontal cross section of each mold. By the press molding apparatus and the press molding method according the invention, the press molding is performed upon heating uniformly a plurality of molds, thereby manufacturing glass optical elements having a good surface precision and a good surface quality.
Abstract:
Processes for manufacturing glass optical elements by press molding a heated and softened glass material in preheated molds. In the process, the glass material is heated while it is floated by a gas blow and the heated and softened glass material is transferred to the preheated molds and then subjected to press molding. Alternatively, the process comprises: heating a glass material at a temperature at which the glass material has a viscosity of lower than 10.sup.9 poises, preheating molds at a temperature at which the glass material has a viscosity of from 10.sup.9 to 10.sup.12 poises, subjecting the heated and softened glass material to initial press in the preheated molds for 3 to 60 seconds, starting to cool the vicinity of molding surfaces of the molds at a rate of 20.degree. C./minute or higher upon starting of, or during, or after the initial press, and removing a molded glass article from the molds after the temperature of the vicinity of the molding surfaces of the molds becomes a temperature equal to or lower than a temperature at which the glass material has a viscosity of 10.sup.12 poises.
Abstract:
A pneumatic actuator comprising a housing asembly (1, 2) and a diaphragm (7) defining a diaphragm chamber (6) which is in communication with the exterior through an exhaust and a suction conduit (1c, 1d). Solenoid valves (8, 9a, 9b) for opening and closing the conduit (1c, 1d) are mounted to the housing (1) and are covered by an outer cover (10) attached to the housing (1). The housing (1) has a raised outer surface (1e) which is brought into contact with the cover (10) for substantially preventing ingress of moisture. The raised outer surface (1e) of the housing (1) also has a groove (13) for collecting and exhausting moisture passed through the clearance under the outer cover (1) by the capillary action.