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    • 102. 发明授权
    • Rear wheel steering system with fail-safe system
    • 具有故障安全系统的后轮转向系统
    • US5101922A
    • 1992-04-07
    • US616946
    • 1990-11-21
    • Hiroshi Ohmura
    • Hiroshi Ohmura
    • B62D6/00B62D5/04B62D7/14B62D101/00B62D113/00
    • B62D7/148
    • A rear wheel steering system of a four wheel steering vehicle comprising a rear wheel steering mechanism for steering a rear wheel, an urging device for urging a rear wheel toward a neutral position of the rear wheel, a motor connected with the rear wheel steering mechanism for providing the rear wheel with steering force against resilient force of the urging device, a clutch for transmitting a driving force of the motor to the rear wheel steering mechanism, steering position detector for detecting a steered position of the rear wheels, control unit for receiving a signal from the steering position detector and for forming a motor control signal by which the motor is controlled to steer the rear wheel. The steering position detector has at least three detectors for detecting a steered position of the rear wheel. A returning device is provided in the control unit for returning the rear wheel to the neutral position by means of the motor when an abnormal condition is detected in the detectors but at least two of the detectors have the same indication of the steered position of the rear wheel, and for disengaging the clutch to return the rear wheel to the neutral position by virtue of the resilient force of the urging device. The rear wheel is returned to the neutral position without making the steering of the vehicle unstable when the rear wheel steering system is an abnormal condition.
    • 一种四轮转向车的后轮转向系统,包括用于转向后轮的后轮转向机构,用于将后轮推向后轮的中立位置的推动装置,与后轮转向机构连接的电动机,用于 为后轮提供抵抗推动装置的弹力的转向力,用于将马达的驱动力传递到后轮转向机构的离合器,用于检测后轮的转向位置的转向位置检测器,用于接收 来自转向位置检测器的信号,以及用于形成电动机控制信号,通过该信号控制电动机来转向后轮。 转向位置检测器具有用于检测后轮的转向位置的至少三个检测器。 在控制单元中设置返回装置,用于当在检测器中检测到异常状况时,通过电动机将后轮返回到中立位置,但是至少两个检测器具有与后部的转向位置相同的指示 并且用于使离合器分离,由于推动装置的弹性力将后轮返回到中立位置。 当后轮转向系统处于异常状态时,后轮返回到中立位置而不使车辆的转向不稳定。
    • 103. 发明授权
    • Rear wheel steering device for a vehicle
    • 汽车后轮转向装置
    • US5083628A
    • 1992-01-28
    • US609636
    • 1990-11-06
    • Hirotaka KanazawaHiroshi OhmuraTakashi Nakashima
    • Hirotaka KanazawaHiroshi OhmuraTakashi Nakashima
    • B62D6/00B62D7/14B62D7/15B62D101/00B62D113/00
    • B62D7/1536B62D7/159
    • A rear wheel steering device for a vehicle which is provided with a rear wheel steering shaft which steers rear wheels by its displacement, a neutrally holding means which constantly biases the rear wheel steering shaft to the neutral position, a motor which is linked with the rear wheel steering shaft and changes the steering angle ratio which is a ratio of the rear wheel steering angle to the front wheel steering angle by displacing the rear wheel steering shaft and an oil pressure assist means which assists displacement of the rear wheel steering shaft by the motor by oil pressure force. This device is further provided with oil pressure supply means which supplies oil pressure to the oil pressure assist means and oil pressure control means which, when working the motor at the initial check, controls the oil pressure supply means to make the oil pressure assist means supply oil pressure to the oil pressure assist means before working of the motor.
    • 一种用于车辆的后轮转向装置,其具有通过其位移来转向后轮的后轮转向轴,将后轮转向轴恒定地偏压到中立位置的中立保持装置,与后方连接的电动机 车轮转向轴,并且通过使后轮转向轴移位来改变作为后轮转向角与前轮转向角的比的转向角比,以及通过电动机辅助后轮转向轴的位移的油压辅助装置 通过油压力。 该装置还具备向油压辅助装置和油压控制机构供给油压的油压供给机构,在初次检查时对电动机进行加工的情况下,控制油压供给机构使供油辅助装置 在电动机工作之前对油压辅助装置的油压。
    • 105. 发明授权
    • Power-steering system
    • 动力转向系统
    • US5027917A
    • 1991-07-02
    • US558503
    • 1990-07-27
    • Hiroshi Ohmura
    • Hiroshi Ohmura
    • B62D5/07B62D6/00B62D101/00B62D113/00B62D137/00
    • B62D6/00B62D5/07
    • A power-steering system for a vehicle includes a steering wheel which turns the front wheels, a power cylinder device which assists the steering wheel in turning the front wheels, a vehicle speed sensor which detects the vehicle speed, and a control unit which controls the power cylinder device so that the assisting force with which the power cylinder device assists the steering wheel is reduced with increase in the vehicle speed. The control unit has a reverse gear sensor which detects when the transmission of the vehicle is in reverse, and reduces the assisting force with increase in the vehicle speed at a higher rate when the vehicle runs rearward than when the vehicle runs forward.
    • 用于车辆的动力转向系统包括转向前轮的方向盘,辅助方向盘转动前轮的动力缸装置,检测车速的车速传感器,以及控制单元, 动力缸装置,使得动力缸装置辅助方向盘的辅助力随着车速的增加而减小。 控制单元具有倒车齿轮传感器,其检测车辆的变速器何时反向,并且当车辆向后行驶时以比车辆向前行驶更高的速度以更高的速度减小辅助力。
    • 107. 发明授权
    • Electronic copying machine
    • 电子复印机
    • US4939588A
    • 1990-07-03
    • US233458
    • 1988-08-15
    • Seimei UshiroKenta NamiokaHiroshi OhmuraMichio ChoKimiaki Nakada
    • Seimei UshiroKenta NamiokaHiroshi OhmuraMichio ChoKimiaki Nakada
    • B43L1/04G03B27/54H04N1/00H04N1/028H04N1/10H04N1/193
    • H04N1/0283H04N1/00519H04N1/02815H04N1/1013H04N1/1043H04N1/193H04N2201/0082H04N2201/0096H04N2201/0438
    • An electonic copying machine for making a hard copy of a remote original comprises a housing and an image pick-up unit pivotally mounted on the housing for vertical swinging movement between a raised use position and a lowered non-use position. In the housing, there are a scanner for scanning the remote original with a line of light projected through a transparent window plate, a recording head and image recording paper. In the image pick-up unit, there are a lens for forming a line image of the scanned remote original on the recording paper, a line image sensor for reading the line image formed thereon by the lens to provide line image signals according to which the image recording head records and image on the recording paper, shifting the line image sensor by a predetermined pitch in a direction perpendicular to the longitudinal direction of the line image sensor. When the image pick-up unit is folded down, the transparent window plate is covered by the image pick-up unit and the lens is received in a space formed in a corner of the housing and the electronic copying machine then has the shape of a generally rectangular box.
    • 用于制作远程原稿的硬拷贝的电子复印机包括:壳体和可旋转地安装在壳体上的图像拾取单元,用于在升高的使用位置和降低的不使用位置之间的垂直摆动。 在外壳中,有一个扫描仪用于通过透明窗板,记录头和图像记录纸投影的一条光线扫描远程原稿。 在图像拾取单元中,存在用于在记录纸上形成扫描的远程原稿的线图像的透镜,用于读取由透镜在其上形成的线图像的线图像传感器,以提供线图像信号,根据该图像信号, 图像记录头在记录纸上记录和图像,在与图像传感器的纵向方向垂直的方向上将行图像传感器移动预定间距。 当图像拾取单元向下折叠时,透明窗板被图像拾取单元覆盖,并且透镜被容纳在形成在壳体的角部的空间中,并且电子复印机的形状为 一般矩形盒。
    • 109. 发明授权
    • Heat sensitive copying machine
    • 热敏复印机
    • US4891517A
    • 1990-01-02
    • US222821
    • 1988-07-22
    • Seimei UshiroKenta NamiokaHiroshi OhmuraMichio ChoKimiaki NakadaTokuji SatoTakeshi Watanabe
    • Seimei UshiroKenta NamiokaHiroshi OhmuraMichio ChoKimiaki NakadaTokuji SatoTakeshi Watanabe
    • G03B21/11
    • G03B21/118
    • A copying machine for making a hard copy of an original comprises an image sensor for reading an image of the original to provide image signals, a memory for memorizing the image signals after or before processing the image signals for necessary corrections, and a printer for printing an image on a copying sheet according to the image signal after image processing. Preferably, a thermal printing head and a heat sensitive sheet are used. The copying machine is compact and either is incorporated in a portable overhead projector or is used as a writing board copy machine. In the former case, the image sensor is disposed in a supporting arm for supporting an image projection lens assembly above a base section of the overhead projector on which a transparent original is placed. The image sensor reads a reflecting original to provide image signals and the thermal printing head prints a mirror image of the reflecting original on a transparent heat sensitive sheet according to the image signals provided by the image sensor, thereby providing a transparent secondary original instantly for projection. In the latter case, the machine includes a pattern projector for projecting a light pattern which will be deformed on the remote original according to position of the copying machine, whereupon a correcting circuit provides a correction signal. The heat sensitive sheet is formed with indicia near front and rear diagonally opposite edges, symmetrically with respect to the center of the sheet, to indicate at least the surface of the sheet to which a heat sensitive material layer is applied.
    • 用于制作原件的硬拷贝的复印机包括用于读取原稿的图像以提供图像信号的图像传感器,用于在处理用于必要校正的图像信号之前或之前存储图像信号的存储器和用于打印的打印机 根据图像处理后的图像信号在复印纸上的图像。 优选使用热敏打印头和热敏片。 复印机是紧凑型的,或者被并入便携式高架投影仪中,或者被用作书写纸复印机。 在前一种情况下,图像传感器设置在支撑臂中,用于将投影透镜组件支撑在放置有透明原稿的高架投影仪的基部上。 图像传感器读取反射原稿以提供图像信号,并且热敏打印头根据由图像传感器提供的图像信号将反射原稿的镜像打印在透明热敏纸上,从而立即提供透明的二次原稿用于投影 。 在后一种情况下,机器包括用于根据复印机的位置投射将在远程原稿上变形的光图案的图案投影仪,因此校正电路提供校正信号。 感热片形成有相对于片材的中心对称的前后对角相对边缘附近的标记,至少表示施加有热敏材料层的片材的表面。