Alternating Rotary Or Continuous Patents (Class 74/318)
  • Patent number: 9242353
    Abstract: A hand-held machine tool device, in particular, for a screwdriver (12a-h), having a locking device (14a-h) for locking a power take-off unit (16a-h), and having a rotational bearing device (18a-h) of the power take-off unit (16a-h). It is provided that at least part of the locking device (14a-h) and the rotational bearing device (18a-h) be formed in one piece.
    Type: Grant
    Filed: September 4, 2009
    Date of Patent: January 26, 2016
    Inventors: Joachim Hecht, Heiko Roehm, Martin Kraus
  • Publication number: 20100126290
    Abstract: A transmission mechanism with intermittent output movement includes an output shaft rotatably mounted to first and second cams and a sun gear mounted to the output shaft. A first rocker includes a first planet gear meshed with the sun gear and first and second rollers rotatably mounted on opposite sides of the first planet gear and respectively in contact with the first and second cams. A second rocker includes a second planet gear meshed with the sun gear. An end of a first connecting rod is mounted to the first rocker. An end of a second connecting rod is mounted to the second rocker. Two ends of a link are rotatably mounted to the other ends of the first and second connecting rods. A planet gear carrier is mounted to an input shaft coaxial to the input shaft and includes an end rotatably mounted to the first rocker.
    Type: Application
    Filed: October 27, 2009
    Publication date: May 27, 2010
    Inventors: Der-Min Tsay, Hsin-Pao Chen, Hsien-Wen Hsu, Chih-Wei Huang
  • Publication number: 20090229392
    Abstract: A clutch actuator assembly may include a motor provided with a rotatable worm shaft, a screw thread being formed at an exterior circumference of the worm shaft; a worm wheel having a disk shape, and provided with a worm gear engaged to the screw thread and first and second guiding holes; an operation unit mounted in the first and second guiding holes in order to move toward a radial direction of the worm wheel; and an upper body provided with a fork, and engaging or releasing a clutch by upward and downward movements of the fork corresponding to a movement of the operation unit.
    Type: Application
    Filed: November 19, 2008
    Publication date: September 17, 2009
    Inventors: II Soo KIM, Sang Chul Park, Jeong Heon Kam, Han Ho Hwang, Woo Jin Cha, Kwang Soo Nam, Young Kwang Kim
  • Publication number: 20080271554
    Abstract: A device for connecting, in a rotationally fixed manner, a shaft to at least one component which is rotationally supported on the shaft, such as a gear wheel of a gear in a transmission. The device includes an actuating element that is rotationally fixed, but axially slides on the shaft, such that when the element is actuated by an actor, the element actively, frictionally communicates with the component to at least approximately equalize a rotational speed difference, between the component and the shaft. The actuating element can be actuated by the actor with a force to frictionally connect the component to the shaft in a rotationally fixed manner. The device further includes a holding device, which retains the actuating element in a shift condition essentially equivalent to the rotationally fixed condition of the component without further actuation of the actor.
    Type: Application
    Filed: October 17, 2007
    Publication date: November 6, 2008
    Applicant: ZF Friedrichshafen AG
    Inventors: Mark MOHR, Matthias Reisch
  • Patent number: 6594619
    Abstract: An apparatus is described for detecting the early signs of cycle-induced fatigue and thereby predicting failure of the rotating disk in turbo-machinery. It identifies asymmetrical growth of hub-blade diameter as a predictor of incipient crack growth. Tip measurements are processed through specialized algorithms to detect such asymmetry during operation, providing a real-time, non-destructive method of prediction. The sensors can be housed within the machinery case, and are capable of operating in harsh environments while maintaining adequate stand-off distance, making the entire apparatus robust enough for conditions in high-speed turbo-machinery.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: July 15, 2003
    Assignee: Hood Technology Corporation
    Inventor: Andreas von Flotow
  • Publication number: 20030070500
    Abstract: A drive gear shaft structure of a self-moving type mower is provided adjacent to a wheel unit disposed at the bottom portion of a mower, and includes upper and lower housings which co-define a receiving space after assembly thereof; a shaft, a gear, two transmission taper blocks, two securing plates, two securing oil seals, a worm and a trigger rod disposed in the receiving space; and a transmission structure connected to the worm and a transmission spindle of a drive motor of the mower. The structure utilizes motor output power of the cutter of the mower to enable the wheels of the mower to automatically rotate.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 17, 2003
    Inventor: Yu-Nan Hung
  • Patent number: 4781072
    Abstract: A drive shaft continuously rotating in a single direction operates to drive a driven shaft with alternating bidirectional rotative movement through a gear transmission which includes a first gear mounted on the drive shaft and second and third gears mounted on the driven shaft, with the first gear having teeth on only a portion thereof, the teeth alternately engaging the second and third gears as the drive shaft rotates. The gear teeth on the first, second and third gears have a tooth pitch t.sub.0 and the teeth on the second and third gears are offset relative to each other by an arc length measured along the pitch circle of the gear which is not grater than one-fourth of the tooth pitch t.sub.0.
    Type: Grant
    Filed: May 26, 1983
    Date of Patent: November 1, 1988
    Assignee: Institut Straumann AG
    Inventor: Oswald Tschudin
  • Patent number: 4653338
    Abstract: The preferred embodiment can be incorporated into a powered instrument which rotates a tool. The preferred embodiment permits changing the direction of rotation of the tool without using the hand that does not grip the instrument housing to operate the tool, and without altering the grip on the instrument. The preferred embodiment includes an actuator which moves between two positions to selectively couple two rotating members to an output shaft. The output shaft is rotated in one direction when one rotating member is coupled to the shaft and is rotated in the remaining direction when the remaining rotating member is coupled to the shaft. Movement of the actuator between its two operative positions can be achieved by pushing on the instrument housing to push the tool against the workpiece, or by pulling the instrument housing away from the chuck if the tool is embedded within the workpiece.
    Type: Grant
    Filed: February 11, 1985
    Date of Patent: March 31, 1987
    Assignee: Hall Surgical Division of Zimmer, Inc.
    Inventor: Hugh D. Yeomans