Abstract: A clearance is created between an inner circumference of a bushing main body (2) which surrounds a rack (5) across a row of rack gear teeth (50) and an outer circumference of the rack (5), and two supporting surfaces (21A, 21B) which face each other with a bushing main body axis O therebetween and a supporting surface (21C) which faces a back surface of the rack (5), each extending along an x-axis direction, are formed on the inner circumference of the bushing main body (2). The rack (5) in a neutral state is supported by the two supporting surfaces (21A, 21B) so as to be displaceable along a z-axis direction, and the rack (5) in operation is stably supported by the three supporting surfaces (21A-21C) at three places.

Abstract: An on-vehicle DSRC apparatus includes a main body (11) a signal processing unit provided in the main body (11), an external storage medium insertion slot (12), an antenna array (22) electrically connected to the signal processing unit to perform intercommunication with on-road equipment, a mounting member for the antenna array (22), and an antenna angle holding means (20) mounted swingably on said mounting member (11). The antenna angle holding means (20) is so designed as to set the predetermined range of angle such that a proper angle for enabling intercommunication between the on-road equipment and the antenna array (22) within the predetermined communication area. The angle of the antenna array is automatically held at a proper value owing to swinging movement of the antenna angle holding means.

Abstract: A DSRC car-mounted equipment for transmitting and receiving data to and from an on-the-road equipment, preventing communication error after the start of communication. The equipment comprises reception sensitivity-increasing means 14, 15, 40 for increasing the reception sensitivity in a communication area with the on-the-road equipment in response to the entrance into a communication start area with the on-the-road equipment, wherein the reception sensitivity-increasing means returns the reception sensitivity back to the normal reception sensitivity of before entering into the communication start area in response to the end of communication with the on-the-road equipment.

Abstract: An on-vehicle DSRC apparatus includes a main body (11) a signal processing unit provided in the main body (11), an external storage medium insertion slot (12), an antenna array (22) electrically connected to the signal processing unit to perform intercommunication with on-road equipment, a mounting member for the antenna array (22), and an antenna angle holding means (20) mounted swingably on said mounting member (11). The antenna angle holding means (20) is so designed as to set the predetermined range of angle such that a proper angle for enabling intercommunication between the on-road equipment and the antenna array (22) within the predetermined communication area. The angle of the antenna array is automatically held at a proper value owing to swinging movement of the antenna angle holding means.

Abstract: The present invention provides an on-board DSRC apparatus for communicating with the associated one of on-road communication machines, in which the on-board DSRC apparatus is capable of coping readily with the repurchase of a vehicle, and with the change of the preference of a user while maintaining a communication area fixed before and after having changed the type of, the on-board DSRC apparatus, and has high degree of freedom of installation of the body of the on-board DSRC apparatus. A body of an on-board DSRC apparatus which is connected to an antenna unit includes a transmission unit and a reception unit which are associated with the antenna unit.

Abstract: A DSRC car-mounted equipment which self-diagnoses its communication function and informs the driver of the result, comprising a first local oscillator 30 for generating a car-mounted equipment frequency fosc, a demodulator 16 for detecting the electric field intensity HE and for picking up reception data D1, a car-mounted controller 40 for fetching the reception data by changing over the transmission/reception change-over switch SW1 and for sending transmission data D2, a second local oscillator 31 that outputs a frequency for detecting abnormal condition corresponding to an on-the-road equipment frequency fs, and means for judging the condition of the transmission/reception circuit using the frequency for judging abnormal condition, wherein the transmission/reception change-over switch is connected to the reception circuit, abnormal condition is judged from at least either the electric field intensity or the reception data detected based on a leakage power of the frequency for detecting abnormal condition, a

Abstract: A DSRC car-mounted equipment which prevents an IC card from being inserted when the temperature lies outside a tolerable temperature range, in order to avoid the thermal deformation and low-temperature breakage of the IC card. The DSRC car-mounted equipment comprises a communication control unit for executing a dedicated narrow-range communication with an on-the-road equipment 1, an IC card accommodation portion 9, a contact portion 10 connected to an electrode portion D of the IC card, a car-mounted equipment controller for reading and writing data to, and from, the IC card, a circuit board 8 constituting the IC card accommodation portion, temperature sensors 11 and 12 disposed near the IC card accommodation portion, a temperature-judging unit for judging whether the temperature data are within the temperature range tolerated by the IC card, and alarm unit 6 and 7 for producing an alarm when the temperature data lie outside the tolerable temperature range.