Abstract: A vacuum switch comprises a vacuum container, a grounding switch and a load switch disposed in the container, and an external connection conductor disposed in the vacuum container and to be connected electrically inside and outside the vacuum container, and it is characterized in that the grounding switch and the external connection conductor are electrically connected to each other in the vacuum container.

Abstract: An object of this invention is to provide a vacuum switch in which the assembling property of the parts to be accommodated in the interior of the vacuum container is improved, the configuration of the vacuum container is simplified, and the parts to be accommodated in the interior of the container can be assembled easily. This invention is a vacuum switch wherein a ground switch, a load switch, and an external connecting conductor to be electrically connected with the inside and outside of the vacuum container are provided in a vacuum container; the ground switch and the external connecting conductor are electrically connected in the vacuum container; and the vacuum container has a joint construction of a body portion having openings on both ends thereof, and a lid joined to the opening of the body.

Abstract: A seat occupant sensor device for detecting whether or not an occupant is seated on a seat is made up of a pressure sensitive switch including a pair of sensor portions and a connecting portion, with each of the sensor portions being formed as an integration of a pair of opposed films and a spacer. On one of the films is disposed a plurality of spaced first electrodes which are electrically connected to each other by way of a first conductive path, and on the other film is disposed a plurality of spaced second electrodes which are electrically connected to each other by way of a second conductive path. The spacer is disposed between the pair of opposed films in such a manner that each of the first electrodes is maintained separate from the corresponding second electrode when the seat is unoccupied. The first conductive path and the second conductive path extend into the connecting portion, and the connecting portion is positioned, when in its free state, between the pair of the sensor portions.

Abstract: An attachment structure for installing a load sensor to a vehicle seat includes the load sensor having a plate-shaped strain unit and a strain gauge for detecting a strain of the plate-shaped strain unit. The load sensor is structured that one end of the plate-shaped strain unit is fixed to a seating portion of the vehicle seat and the other end of the strain unit is fixed to a vehicle body. Also, a strain portion is defined between each fixed end of the plate-shaped strain unit, and the strain portion is deformable in a vertical direction relative to the vehicle seat. In addition, a load input point from the seating portion is defined approximately at a central portion of the strain portion of the plate-shaped strain unit.

Abstract: The object of the present invention is to provide an electric contact member characterized by excellent current breaking capacity as well as a high degree of dielectric strength and welding resistance, and the method for manufacturing this electric contact member at a low production cost with high productivity.

Abstract: The inventive electric contact point of a vacuum valve is made of a sintered alloy containing a heat-resistant metal and a high-conductivity metal. The contact point has at least three slit grooves which extend from the central region to the peripheral region of the contact point, and is soldered to an electrode rod which is connected to the contact point. The contact point includes at least three radially extending vane type contact point members each made of a sintered alloy containing a heat-resistant metal and a high-conductivity metal, and soldered to the electrode rod.

Abstract: An electromagnet composed of a coil, a movable iron core adapted to move on the center axis of the coil, and a stationary iron core provided so as to cover the upper and lower surfaces and the outer peripheral surface of the coil, characterized by a permanent magnet arranged in a gap surrounded by the movable iron core and the stationary core, wherein the movable iron core is attracted by the stationary iron core by a magnetic field created by the permanent magnet, thereby it is possible to solve a problem inherent to a conventional electromagnet such that a permanent magnet is directly energized in a reverse direction during release operation so as to cause demagnetization of the permanent magnet.

Abstract: A seat belt warning device includes a sitting detection switch which is adapted to be in an on-state when a person sits on a vehicle seat and in an off-state when a person is not sitting on the vehicle seat, and a fastening detection switch which is connected to the sitting detection switch in series and adapted to be in an on-state when a seat belt is not fastened and in an off-state when the seat belt is fastened. A warning member is connected to the sitting detection switch and the fastening detection switch in series and is supplied with electric current in the on-state of the sitting detection switch and the on-state of the fastening detection switch to issue a warning.

Abstract: An apparatus for unlocking a door lock for a vehicle, comprising a plurality of door locks for being mounted on doors of the vehicle, a collision direction detecting device for detecting a direction of an impact applied to a vehicle; and an unlocking mechanism for unlocking a door lock located on a side opposite to a collision side based on the direction detected by the collision direction detecting device.

Abstract: A regulator for a power window having a safety function for preventing an object from being caught in a closing power window includes a driving unit for raising and lowering the window glass of a vehicle and a driven unit which receives power from the driving unit. When frictional resistance corresponding to relative displacement between the driving and driven units is less than a fixed value during descent of the window glass and exceeds this fixed during ascent of the window glass, the ascending window glass is reversed and made to descend. When the amount of an increase in current to the driving unit during ascent of the window glass increases in a case where the sliding resistance has exceeded a fixed value even once during descent of the window glass, the ascending window glass is reversed and made to descend.

Abstract: A seat structure is provided which can more reliably detect seating by a smaller stroke of a seat cushion. Movable members 8, 51 and 231 operating in response to up and down movement of a seat cushion 1 and a switching means 4 able to abut against the movable members 8, 51 and 231 are provided, performing occupant detection based on the on/off operation of the switching means 4 by means of the movement operation of the movable members 8, 51 and 231 accompanying a fall of the seat cushion 1.

Abstract: Automatic slide door mechanism includes a slide rail secured to a slide door of a vehicle and which is extended in the fore-aft-direction of the vehicle, a slide rail guide holding the slide rail and held by an arm rotatably coupled to a main vehicle body, swing driving actuator for rotating the arm towards inside or outside of the vehicle, and slide driving actuator separate from the swing driving actuator, the slide driving actuator being held by the slide rail guide and adapted for actuating the slide door and the slide rail in the fore-and-aft direction of the vehicle. This assures smooth and prompt operation during movement of the slide door in the fore-and-aft direction of the vehicle and a sufficiently large torque during movement of the slide door towards inside or outside.

Abstract: A disk drive servo control circuit for controlling a position of a head using servo information obtained from a disk at predetermined time intervals, the servo information being converted to a digital servo control signal which is supplied to a digital to analog (D/A) converter whose output drives a head actuator for moving the head with respect to a selected track, wherein the width of the output signal of the D/A converter is controlled to have a time interval which is shorter than the predetermined time intervals at which the servo information is reproduced, to thereby reduce the minimum resolution in the track following mode without changing the maximum current to the actuator during track seeking.

Abstract: A method for controlling a speed at which a head of a disk drive apparatus is moved toward a target track of a plurality of tracks disposed on a disk shaped recording medium, comprising the steps of, reproducing a signal recorded on the medium and detecting a current position of the head by using the reproduced signal, obtaining the distance between the current position of the head and the position of the target track, dividing a speed profile representing head speed relative to distance of the head to the target track into a plurality of distance ranges, generating a speed profiled in a range in accordance with the distance to the target track by using an approximation calculation, and controlling a speed of the head toward the target track in accordance with the speed profile.

Abstract: A small and inexpensive optical scanning apparatus is attained by an optical block 1 disposed between a rotating mirror 2 and a photosensitive body 3 and having specular surfaces formed at part of inner side of surface so that light from the rotating mirror 2 is reflected within the optical block 1 plural times back and forth and reaches the photosensitive body 3 in order to correct the curvature of field, the distortion aberration and the inclination of surface in an optical scanning system. The length of the optical path within the optical block including reflection is set to 60% or more of the whole length of optical path from the rotating mirror 2 to the photosensitive body 3. The surface of the optical block 1 on the side of the photosensitive body is formed into a curved surface to constitute a concave mirror. The rotating mirror and the photosensitive body are arranged in optically conjugate relation in sub-scanning direction by the focal distance.

Abstract: An optical scanning device which can prevent increase of the weight or capacity involved with distortion correction to sufficiently correct the distortion at low cost. A correction arrangement is provided to control the rotating angular velocity of a scanning rotary mirror in accordance with the scanning position of a scanning face. By controlling the rotating angular velocity of the scanning rotary mirror, the distortion aberration on the scanning face is corrected so that sufficiently accurate optical scanning can be performed without optically correcting the distortion aberration.

Abstract: A lid lock apparatus is comprised of a lid pivotally mounted to a vehicle-body for opening/closing an opening formed therein and movable between an opening position and a closing position, a locking mechanism which is in engagement with the lid in order to hold the lid at its closing position, a first driving mechanism associated with the locking mechanism for releasing the lid from the locking mechanism, a second driving mechanism associated with the locking mechanism for releasing the lid from the locking mechanism, and a device for assuring operations of the first driving mechanism and the second driving mechanism which are independent of the second driving mechanism and the first driving mechanism, respectively.

Abstract: A lid lock apparatus is comprised of an opening formed in a vehicle-body, a lid pivotally mounted to the vehicle-body, a locking mechanism is connected to the plate and has a shaft which engages and disengages the lid when operated to its closed and opened condition, respectively. A driving mechanism which is arranged for releasing the engagement between the shaft and the lid when in the closed condition, is mounted on the locking mechanism and positioned in such a manner that the driving mechanism is set to be in close relationship to the plate while being perpendicular to the axis of the shaft.

Abstract: A thermal head serves as a recording head used in a thermal recording apparatus for performing a recording with heat produced by an electric current flowing into a thick-film resistor. Regions having higher resistance than that of the thick-film resistor are disposed in the thick-film resistor and heating portions each corresponding to one dot in the thick-film resistor are controlled by electric current flowing therethrough from one of first electrodes to one of second electrodes provided in the thick-film resistor. A heating control method for such thermal head attains superfine recording and halftone recording and a method produces such a head and a recording apparatus using the head.

Abstract: An electronic album to which a recording medium recorded with image information took by an electronic still camera is loaded. The electronic album reads the image information and is used to preserve the image information for a long time. The electronic album has a keyboard for use in adding index information to image information, a printer for printing out an edited/modified image information retrieved by the index information, and a display with a page turn-over function.