Abstract: An automobile antenna including a defogging heater wire and a conductor combined into a simple structure to accomplish a good FM reception. A capacitor which effects high-frequency grounding of the terminals of the defogging heater wire is installed between the heater wire terminals and a vehicle body, and the heater wire which resonates in the FM frequency band but not in the AM frequency band is inductively coupled to the conductor which is installed on the surface of the window glass and resonates in the FM frequency band but not in the AM frequency band. The heater wire and the conductor are installed in such a positional relationship that a double resonance is created.

Abstract: A three-wave antenna for vehicles which includes a monopole antenna element which has an electrical length of approximately 1/4 of the wavelength in the FM broadcast band along with a double sleeve used to prevent current flow and with a second double sleeve used for phase adjustment that are installed coaxially with the antenna element. The positional relationships between the inner and outer cylinders of each one of the first and second double sleeves relative to the antenna element are respectively specified.

Abstract: A shortened mast antenna with a compensating circuit between the antenna and a receiver and used in a state shorter than the resonant state of the antenna. The compensating circuit includes an FM compensating circuit made up with passive elements and compensating FM broadcast signals and an AM compensating circuit equipped with active elements which convert a high impedance into a low impedance so that the AM compensating circuit compensates AM broadcast signals. The attachment part of the antenna, to which the compensating circuit is directly connected, has a stray capacitance of 10 PF or less.

Abstract: A device for adjusting and controlling the optical axis of a headlamp including an optical axis initial setting mechanism which includes a manual operation section consisting of two operation bolts and a position adjustment member. The bolts provided with operation gears at one end are mounted to the casing of the device in a symmetrical positions on the left and right sides with the head portions of the operation bolts exposed to outside of the casing of the device. The position adjusting member has a gear portion at one end that engages with respective operation gears of the operation bolts and also has an engagement portion at the other end that engages with the aiming shaft so that the engagement portion, which is used for adjustment and control of the optical axis of the headlamp, can slide in the axial direction but cannot rotate in the circumferential direction of the aiming shaft.

Abstract: The antenna of the present invention includes an ultrashort antenna element which has an electrical length of lambda/2, a transmission path one end of which is connected to the base of the antenna element, a ground plane obtained from a sheet-form conductive member with an electrical length of lambda/4 which is bent into a U-shape so that first and second portions face each other with the first portion being installed parallel to the transmission path in close proximity to the transmission path so as to create a capacitive coupling with the transmission path, a capacitive coupling member installed at one end of the first portion so that a capacitive coupling is formed between the capacitive coupling member and ground and a coaxial cable with its central conductor connected to an other end of the transmission path and its outer conductor connected to one end of the second portion of the ground plane.

Abstract: An automobile antenna including an antenna element which receives both AM and FM broadcast bands and is mounted on a vehicle body and a feeder cable having one end thereof connected to a feeding point of the antenna element and the other end to a receiver set, the feeder cable being set so that its electrical length is an integral multiple of 1/2 the wavelength of the FM broadcast band.

Abstract: A vehicle antenna for AM/FM and MT waves including a first antenna element for MT waves vertically mounted on the vehicle roof and a second antenna element for AM/FM waves rotatably coupled to the top end of the first antenna element so that the second antenna element can be set at a desired angle relative to the roof of the vehicle. A trap element for blocking MT waves is installed near the lower end of the second antenna element.

Abstract: In a micro-strip antenna comprising a radiating conductor and a grounding conductor which are installed on either side of a dielectric, a plate-form conductor is attached to the radiating conductor at a position which is roughly at point where an extension line extended from a line, that connects the center of gravity of the radiating conductor and a feeding point, intersects an edge of the radiating conductor. The plate-form conductor is attached also at a position which is rotated 90 degrees about the center of gravity from the above-described position. In addition, a portion of the plate-form conductor is set to project from the edge of the radiating conductor. In this way, the center frequency of the micro-strip antenna can easily be corrected during the manufacturing process of the micro-strip antenna.

Abstract: An actuator for a door lock mechanism, that is capable of sufficiently securing a strong driving force as well as a necessary stroke quantum, that is small in size, and that makes manual operation possible under a light load, comprising: a columnar body that is rotated by a forward-reverse motor and provided with, on its outer circumferential surface, a first spiral stage, which forms an upward gradient in a first direction when the columnar body rotates in a forward direction, a second spiral stage which forms an upper-gradient in a second direction when the columnar body rotates in a reverse direction; and a displacement component having one end driven to move in the first direction by the first spiral stage at the time of the positive rotation of the columnar body and in the second direction by the second spiral stage when the columnar body rotates in the reverse direction, thus causing another end of the displacement component to actuate a latch mechanism for locking doors.

Abstract: In order to provide a broad-band non-grounded type ultrashort-wave antenna which has sufficiently high sensitivity characteristics and broad-band VSWR characteristics even in an expanded frequency band, is able to use a small-diameter antenna element, is light in weight and simple in structure, and can be manufactured inexpensively, an antenna element parallel resonance part, that is formed by the inductance and distributed capacitance of the rod-form antenna element which has an electrical length close to lambda/2 or an integral multiple of lambda/2, and a metal member parallel resonance part, that is formed by the electrostatic capacitance between first and second metal members which are installed parallel to each other and have respective electrical lengths of lambda/4 and the inductance of the first metal member, are electrostatically coupled by the stray capacity that exists between the antenna element and an electrostatic coupling piece projected from the second metal member, thus forming a double-tuned

Abstract: A whip antenna for vehicles including an antenna element with a skirt-form coupling member provided on the antenna element. The coupling member is, at a predetermined point on the antenna, prevented from moving toward the lower end of the antenna and has a screw thread on its inner surface. The lower end of the antenna is inserted into an antenna attachment base installed in a vehicle body, and the coupling member is screwed to this antenna attachment base.

Abstract: An apparatus that controls the light irradiation angle of a headlamp of vehicles including a feed screw rotatable by a motor, a movable piece that makes a reciprocating motion by the feed screw, an output shaft attached to the movable piece at one end and linked to a headlamp at another end so that the illumination angle of the headlamp is controlled by the advancing and withdrawing motion of the output shaft. The apparatus further includes an irradiation angle initial setting mechanism that is connected to the movable piece so that the irradiation angle can be set manually by adjusting the position of linkage of the headlamp and the output shaft via the movable piece. With this structure, any initial setting of the headlamp angle can be accomplished regardless of the type of vehicles via a compact and simple structure.

Abstract: A method of manufacturing a micro-strip antenna in which when a radiating conductor is installed on one side of a dielectric which has a grounding conductor on another side. A projection is installed at an edge portion of the radiating conductor and cut a specific amount so as to adjust the center frequency of the micro-strip antenna. Instead, such an adjustment of the center frequency of the micro-strip antenna is obtained by cutting away a part of an edge area of the radiating conductor a specific amount.

Abstract: A tri-band antenna including an center conducting an inner pipe surrounding the center conductor, an outer pipe surrounding the inner pipe and Teflon provided between the inner and outer pipes.

Abstract: A flat-plane antenna for mobile communications, used in automobiles, etc. including a table form antenna element made up of a conductive flat-plate section and a plurality of leg sections which connect to the flat-plate section to a ground plate, a strip line resonator provided beneath the table form antenna with a space in between, and a capacitor electrode provided on the strip line resonator directly under the center of the table form antenna element. A feeding line is connected to the strip line resonator.

Abstract: An actuator control device used for, for instance, dampers of automobile air conditioners including first and second fixed contacts which are discontinuous on a path along which a movable contact travels and third and fourth fixed contacts which are also in a discontinuous fashion on the movable contact's path. A motor, that is, an actuator, is connected to a battery and rotated forward when the movable contact is in contact with the first contact and is rotated reversely when the movable contact is in contact with the third contact, thus opening and closing the damper. A first diode is connected to the second contact so that when the damper, which is rotated in a linkage with the movable contact, is opened and the movable contact comes into contact with the second contact, the first diode cuts off the current to the motor, thus completing the damper opening action.

Abstract: An automobile antenna including a defogging heater wire and a conductor combined into a simple structure to accomplish a good FM reception. A capacitor which effects high-frequency grounding of the terminals of a defogging heater wire is installed between the terminals and a vehicle body; alternately, FM choke coils can be installed which prevents the heater wire from receiving high-frequency signals from a power source of the heater wire. The heater wire which resonates in the FM frequency band but not in the AM frequency band is inductively and capacitively coupled to the conductor which is installed on the surface of the window glass and resonates in the FM frequency band but not in the AM frequency band. The heater wire and conductor are installed in such a positional relationship that a double resonance is created.

Abstract: A capacitive antenna coupling circuit including a counter electrode which is connected to one end of at least one meandering conductor and a peripheral conductor connected to the other end of the meandering conductor which forms a capacitor between itself and the counter electrode.