Abstract: A bush bearing 1 is comprised of: a synthetic resin-made bush 15 including a flexible semi-split cylindrical body 5 having an abutment portion 3 for slidably abutting against a rack shaft 25 and including a flexible open-ended annular body 14 which has a portion 6 formed integrally at one end face of the semi-split cylindrical body 5 and circular arc-shaped extended portions 12 and 13 whose distal ends 9 and 10 are opposed to each other with a clearance 11 in a circumferential direction R; and an elastic member 22 including an elastic body 21 for abutting against an outer surface 20 of the semi-split cylindrical body 5 and retained portions 16 and 17 which are respectively retained by both end portions 23 and 24.

Abstract: A bearing mechanism 1 includes a housing 3 having a cylindrical inner peripheral surface 2, a rack shaft 5 inserted and secured in the housing 3 and having a cylindrical outer peripheral surface 4, and a sliding bearing 6 interposed between the inner peripheral surface 2 of the housing 3 and the outer peripheral surface 4 of the rack shaft 5.

Abstract: A rack-and-pinion type steering apparatus 1 includes a housing 3 having a cylindrical holding hole 2 in its interior; a pinion 6 which is disposed in the housing 3 rotatably in a direction R about an axis O by means of bearings 4 and 5; a rack bar 8 which has rack teeth 7 meshing with the pinion 6 and is movable in a direction A; a rack guide 9 which is disposed in the holding hole 2 within the housing 3 movably in a direction C, and which guides and supports the rack bar 8 movably in the direction A; and a coil spring 10 for resiliently pressing the rack teeth 7 of the rack bar 8 against the pinion 6 by means of the rack guide 9.

Abstract: A bush bearing includes a synthetic resin-made bush having a circumferential groove on its outer peripheral surface; an endless annular elastic member fitted in the circumferential groove of the bush; and a positioning structure for determining the position of the bush in a B direction with respect to an inner peripheral surface of a gear housing.

Abstract: A radar device includes an antenna, from which a detection signal is transmitted while the antenna being rotated and by which a reflective wave of the transmitted detection signal is received to detect echo data, wherein image data is generated based on the detected echo data, a continuity detecting module for detecting a planer continuity of the currently detected echo data with respect to a pixel concerned in the image data, a behavior data generating module for generating behavior data indicative of a behavior of the echo data for a predetermined number of scans of the past in the pixel concerned based on behavior determination data, and an echo kind determining module for determining a kind of the echo data of the pixel concerned based on the planer continuity and the behavior data.

Abstract: A rack-and-pinion type steering apparatus 1 includes a housing 3 having a cylindrical holding hole 2 in its interior; a pinion 6 which is disposed in the housing 3 rotatably in a direction R about an axis O by means of bearings 4 and 5; a rack bar 8 which has rack teeth 7 meshing with the pinion 6 and is movable in a direction A; a rack guide 9 which is disposed in the holding hole 2 within the housing 3 movably in a direction C, and which guides and supports the rack bar 8 movably in the direction A; and a coil spring 10 for resiliently pressing the rack teeth 7 of the rack bar 8 against the pinion 6 by means of the rack guide 9.

Abstract: A bush bearing 7 includes a synthetic resin-made bush 17 having a circumferential groove 16 on its outer peripheral surface 15; an endless annular elastic member 18 fitted in the circumferential groove 16 of the bush 17; and a positioning means 19 for determining the position of the bush 17 in a B direction with respect to an inner peripheral surface 12 of a gear housing 6.

Abstract: An onboard equipment network system comprises a radar core device, a GPS core device, an echo sounder core device and a sonar core device and display devices which are connected to a network through a hub. Each core device includes a detecting section or a positioning section, as well as a control section, a power supply section and a data transmitter for transmitting detecting signals or positioning signals, while each display device includes a command section for transmitting command data to the individual core devices for setting their operating conditions and a display section for displaying image data received from the individual core devices. The command data is transmitted using Transmission Control Protocol (TCP) while the image data is transmitted using User Datagram Protocol (UDP).

Abstract: A forward-looking sonar includes a transducer array which is divided into a first sub array and a second sub array, a first beamforming section for forming a first receiving beam with the first sub array, and a second beamforming section for forming a second receiving beam with the second sub array. The forward-looking sonar receives target echoes from a wide sounding area with these receiving beams. The forward-looking sonar further includes a position measurement section for determining the position of a target based on the direction of the target calculated from a phase difference between the echoes from the target received by the first and second receiving beams by a split-beam method and the distance to the target calculated from time needed for receiving the echoes after transmission.

Abstract: A forward-looking sonar includes a transducer array which is divided into a first sub array and a second sub array, a first beamforming section for forming a first receiving beam with the first sub array, and a second beamforming section for forming a second receiving beam with the second sub array. The forward-looking sonar receives target echoes from a wide sounding area with these receiving beams. The forward-looking sonar further includes a position measurement section for determining the position of a target based on the direction of the target calculated from a phase difference between the echoes from the target received by the first and second receiving beams by a split-beam method and the distance to the target calculated from time needed for receiving the echoes after transmission.

Abstract: A rack-and-pinion type steering apparatus 1 includes a gear case 3 made of aluminum or an aluminum alloy and having a hollow portion 2; a steering shaft 6 rotatably supported by the gear case 3 through rolling bearings 4 and 5; a pinion 7 which is rotatably supported in the gear case 3 through the steering shaft 6; a rack bar 9 on which rack teeth 8 meshing with the pinion 7 are formed; and a rack guide 10 which is disposed in the hollow portion 2 inside the gear case 3 and supports the rack bar 9 slidably with respect to its moving direction A.

Abstract: A sliding bearing for a steering column includes: a cylindrical bearing body; flat surfaces formed integrally on an inner peripheral surface of the bearing body; first slits extending from one end face of the bearing body to this side of the other end face of the bearing body; second slits extending from this side of the other end face of the bearing body to the one end face of the bearing body; grooves formed in an outer peripheral surface of the bearing body; and elastic rings which are respectively fitted in the grooves in such a manner as to project from the outer peripheral surface of the bearing body and to reduce the diameter of the bearing body.

Abstract: An onboard equipment network system comprises a radar core device, a GPS core device, an echo sounder core device and a sonar core device and display devices which are connected to a network through a hub. Each core device includes a detecting section or a positioning section, as well as a control section, a power supply section and a data transmitter for transmitting detecting signals or positioning signals, while each display device includes a command section for transmitting command data to the individual core devices for setting their operating conditions and a display section for displaying image data received from the individual core devices. The command data is transmitted using Transmission Control Protocol (TCP) while the image data is transmitted using User Datagram Protocol (UDP).

Abstract: An onboard equipment network system comprises a radar core device, a GPS core device, an echo sounder core device and a sonar core device and display devices which are connected to a network through a hub. Each core device includes a detecting section or a positioning section, as well as a control section, a power supply section and a data transmitter for transmitting detecting signals or positioning signals, while each display device includes a command section for transmitting command data to the individual core devices for setting their operating conditions and a display section for displaying image data received from the individual core devices. The command data is transmitted using Transmission Control Protocol (TCP) while the image data is transmitted using User Datagram Protocol (UDP).

Abstract: A sliding bearing for a steering column includes: a cylindrical bearing body; flat surfaces formed integrally on an inner peripheral surface of the bearing body; first slits extending from one end face of the bearing body to this side of the other end face of the bearing body; second slits extending from this side of the other end face of the bearing body to the one end face of the bearing body; grooves formed in an outer peripheral surface of the bearing body; and elastic rings which are respectively fitted in the grooves in such a manner as to project from the outer peripheral surface of the bearing body and to reduce the diameter of the bearing body.

Abstract: An onboard equipment network system comprises a radar core device, a GPS core device, an echo sounder core device and a sonar core device and display devices which are connected to a network through a hub. Each core device includes a detecting section or a positioning section, as well as a control section, a power supply section and a data transmitter for transmitting detecting signals or positioning signals, while each display device includes a command section for transmitting command data to the individual core devices for setting their operating conditions and a display section for displaying image data received from the individual core devices. The command data is transmitted using Transmission Control Protocol (TCP) while the image data is transmitted using User Datagram Protocol (UDP).