Patents Represented by Law Firm Cushman, Darby & Cushman IP Group of Pillsbruy Madison & Sutro LLP
  • Patent number: 5706757
    Abstract: The present invention is to provide an indicating instrument useful to a speedometer for a vehicle. An internal driving unit (2) is secured to a printed circuit board (1), and a cylindrical rotating shaft (6) is carried by bearings (4, 5) of the internal driving unit (2). A pointer (9) is secured to the rotating shaft (6) and rotated via the rotating shaft (6) by the internal driving unit (2). A light emitting diode (12) is disposed inside the rotating shaft (6) and secured to the printed circuit board (1). Light emitted by the light emitting diode is collected by a light collecting portion (9a) of the pointer (9), reflected by a reflecting portion (9b) and illuminates the pointer (9).
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: January 13, 1998
    Assignee: Nippondenso Co., Ltd.
    Inventors: Hiroshi Hashimoto, Masami Kataoka