Screw Patents (Class 114/155)
  • Patent number: 10724603
    Abstract: The present invention provides a parking brake actuator comprising: a motor; a worm gear connected to the motor so that power may be transmitted therebetween; a worm wheel engaged with the worm gear; a driving shaft coupled to the worm wheel and to which a parking cable is connected; and a power transmission gear including a first gear coupled to a rotary shaft of the motor, and a second gear coupled to the rotary shaft of the worm gear and connected to the first gear so that the power may be transmitted therebetween, wherein a gear ratio between the first gear and the second gear is 10:66 and a gear ratio between the worm gear and the worm wheel is 1:54.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: July 28, 2020
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Young Hwan Jung, Woo Seob Shim, Heok Jin Park
  • Patent number: 8046121
    Abstract: A watercraft steering device can include at least one of steerage status detection device configured to detect a steerage status following an operation of the steering wheel, running status detecting device configured to detect a running status of the watercraft, watercraft propulsion unit status recognition device configured to recognize a status of an outboard motor such as an installation number thereof, and electric motor status detection device configured to detect a status of an electric motor, and can further include a lower unit turning force characteristic computation device configured to compute a lower unit turning force characteristic based on a detection value from at least one of the device, and an ECU configured to control at least one of a reaction force to the steering wheel, a limit lower unit turning angle, and a propulsive force based on a computed lower unit turning force characteristic and/or selecting the electric actuator to operate.
    Type: Grant
    Filed: November 19, 2007
    Date of Patent: October 25, 2011
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Makoto Mizutani
  • Patent number: 4516940
    Abstract: A propulsion unit for a water-borne vessel has a drive transmission assembly comprising a drive shaft and a steering shaft which can be concentric with the drive shaft, a leg depending from the drive transmission assembly, for instance by way of a horizontal axis pivot connection so that the leg can be swung up, and a propeller housing supported on the lower end of the leg for rotary movement about the axis of the leg, for steering the vessel.
    Type: Grant
    Filed: May 18, 1982
    Date of Patent: May 14, 1985
    Inventor: Ernest F. Roberts