Alternately Rotated Pinion Patents (Class 74/33)
  • Patent number: 10837522
    Abstract: A dual clutch transmission for a motor vehicle, with gear wheel sets, which can be engaged via shift elements and which form exactly eight wheel planes, which are associated with respectively a first sub-transmission and a second sub-transmission. Each sub-transmission has a respective input shaft and the two sub-transmissions have an output shaft, which is axis-parallel to the input shafts. The mutually coaxial input shafts can each be activated via a power-shift clutch in alternation and the even forward gears are associated with the first sub-transmission and the odd forward gears are associated with the second sub-transmission, which can be engaged when a gear shift occurs via the shift element.
    Type: Grant
    Filed: January 20, 2016
    Date of Patent: November 17, 2020
    Assignee: AUDI AG
    Inventor: Steffen Hummel
  • Patent number: 8931125
    Abstract: A cradle drive mechanism is provided. The cradle drive mechanism includes a drive motor, an intermediate frame and a screw and nut transmission device driven by the drive motor so as to drive linear reciprocating motion of the intermediate frame. The cradle drive mechanism also includes a rotating, shaft having a first driving wheel and a gear, a transmission belt, and a rack meshed with the gear so that, during linear reciprocating motion of the intermediate frame, the rack forces the gear to rotate and drive rotation of the first driving wheel, wherein rotation of the first driving wheel drives rotation of the transmission belt. The cradle drive mechanism also includes a cradle connector fixed on the transmission belt and configured to connect a cradle and to drive linear reciprocating motion of the cradle.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: January 13, 2015
    Assignee: GE Medical Systems Global Technology Company, LLC
    Inventors: Xianfa Fang, Gaoxian Zhang, Gang Hu, Xin Yang
  • Patent number: 8613459
    Abstract: Disclosed are a variable gear ratio type rack bar, and a steering apparatus having the same. According to the present invention, it is not required to fabricate a separate mold for processing rack-formed parts with different inter-tooth spaces, the rack-formed parts can be formed by using various processing methods, and it is possible to obtain precise tooth shapes through one step processing, whereby the number of steps for manufacturing a variable gear ratio type rack bar and its manufacturing cost can be reduced.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: December 24, 2013
    Assignee: Mando Corporation
    Inventors: Kwang Ho Yang, Ki Che Park
  • Patent number: 8365620
    Abstract: A motor vehicle including an internal combustion engine, which utilizes a power take-off mechanism, that converts the reciprocating linear motion of the piston into reciprocating angular motion of the gearing cylinder, being in gear with the partially teethed connecting rod via right angled teeth and rotating motion of the drive shaft which runs coaxially through the gearing cylinder and vice versa. The mechanism has means for causing the piston to pause while the drive shaft rotates. The motor vehicle comprises a fuel heater, an exhaust cleaner including a sinuous tube and liquid for separating impure components of exhaust, a main control module controlling the function of the engine and piston function, a second control module controlling the engine during the minimal running state, thus controlling the pause time of the piston, a third control module controlling the energy flow to the heater, the fuel feeder, and the air feeder.
    Type: Grant
    Filed: November 7, 2006
    Date of Patent: February 5, 2013
    Inventor: Agron Haka
  • Publication number: 20120279328
    Abstract: Atmospheric pollution and global warming have been caused due to conversion of petroleum, natural gas and atomic energy into electrical energy and continued use of the first two of these energy sources as engine fuel. Such being the case, there is a pressing need to use alternative energy and to change from using power mechanisms to using alternative types of mechanisms. Disclosed is a human-powered device provided with a first lever and a second lever. A large force is generated using a first lever. By means of a second lever, the force is further amplified, and swing amplitude is enlarged. The fulcrum position is made to move, with the result that the second lever is provided with a continuously variable function. A pinion makes normal or reverse rotation according to the movement of the second lever, which swings. By means of a ratchet mechanism provided at a first shaft, this normal or reverse rotation is converted into rotation made in one direction only by a gear wheel.
    Type: Application
    Filed: October 8, 2010
    Publication date: November 8, 2012
    Inventors: Tokio Nakagawa, Masayoshi Nakagawa, Tomori Nakagawa
  • Publication number: 20120186371
    Abstract: A rack and pinion steering device which can restrict a pinion shaft from moving in an axial direction even when a snap ring of supporting a thrust load of the pinion shaft is detached or broken, and in which when the snap ring is detached or broken, the pinion shaft is moved to an upper side in the axial direction. Then, a raised portion of the pinion on a side of a lower end face is brought into contact with an outer peripheral face of a rack. The pinion shaft does not move further in the axial direction. Therefore, the thrust load can be supported, and a predetermined performance of the rack and pinion steering device can be maintained.
    Type: Application
    Filed: January 20, 2012
    Publication date: July 26, 2012
    Applicant: NSK Ltd.
    Inventor: Toshiyuki AIZAWA
  • Patent number: 8230264
    Abstract: An apparatus for evaluating a change of an existing system to a modified system by using a test system including a subsystem having the same configuration with either of the existing subsystem and the modified system includes: a memory for storing configuration information of the test system and test information; and a processor for executing a process including: activating the test system to execute test on the subsystem, collecting test information from the test system, and storing the test result information while the subsystem has the same configuration as the existing system; confirming the test system has been modified; and activating the test system to execute test on the subsystem, collecting test result information from the test system, and storing the test result information while the subsystem has the same configuration as the modified system.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: July 24, 2012
    Assignee: Fujitsu Limited
    Inventors: Soichi Shigeta, Yuji Imai
  • Patent number: 8210063
    Abstract: A twin clutch type speed-change apparatus applies a dog clutch to speed-change gears slid on a main shaft and a counter shaft for changing the number of speed-change steps. A twin clutch type speed-change apparatus includes a transmission having a plurality of gear pairs between a main shaft and a countershaft and a twin clutch. The rotational drive force of the engine is connected/disconnected between the transmission and the engine by the twin clutch. A dog clutch with dog teeth and a dog hole is applied between an axially slidably attached slidable gear and an axially non-slidably attached non-slidable gear to select an on gear pair for transmitting the rotational drive gear, from a plurality of gear pairs in the transmission. Rotational drive force is transmitted between the slidable gear slid by a shift fork and the coaxially adjacent non-slidable gear by engagement of the dog clutch.
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: July 3, 2012
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshiaki Tsukada, Takashi Ozeki, Hiroyuki Kojima, Yoshiaki Nedachi
  • Patent number: 7637380
    Abstract: A transporting apparatus is provided with: a transporting device (120) having: a loading device (220) which can elongate in an elongation direction toward a side of the track portion; and an elongation mechanism (600) for elongating the loading device. The elongation mechanism is provided with: a first rack (510) fixed to the main body device (210) and a second rack (520) fixed to the loading device, the first rack and the second rack each extending in the elongation direction and facing each other with a space therebetween; and a first pinion (610) engaged with the first rack, a second pinion (620) engaged with the second rack, and an odd number of third pinions (630) engaged between the first and second pinions.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: December 29, 2009
    Assignee: Muratec Automation Co., Ltd.
    Inventor: Noriyasu Fukaya
  • Publication number: 20090038421
    Abstract: A joint assembly is provided which includes a drive assembly and a swivel mechanism. The drive assembly features a motor operatively associated with a plurality of drive shafts for driving auxiliary elements, and a plurality of swivel shafts for pivoting the drive assembly. The swivel mechanism engages the swivel shafts and has a fixable element that may be attached to a foundation. The swivel mechanism is adapted to cooperate with the swivel shafts to pivot the drive assembly with at least two degrees of freedom relative to the foundation. The joint assembly allows for all components to remain encased in a tight, compact, and sealed package, making it ideal for space, exploratory, and commercial applications.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 12, 2009
    Applicant: USA as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Andrew Wilson, Andrew Punnoose, Katherine Strausser, Neil Parikh
  • Patent number: 6737638
    Abstract: A gear-reduction device for measuring and transmitting the movements of a rotary object has a sequential arrangement of wheel/pinion pairs. Each wheel/pinion pair consists of a gear wheel and a pinion that are rigidly connected to a common gear axle. At least part of the gear wheels lie in different parallel planes that are inclined at an oblique angle in relation to the plane of rotation of the rotary object. The gear wheels are of equal diameter, and each of the pinions drives the next following gear wheel. The first wheel in the sequence of wheel/pinion pairs is driven by the rotary object, while the last of the pinions drives a swivel-mounted optical angle-measuring device.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: May 18, 2004
    Assignee: PWB-Ruhlatec Industrieprodukte GmbH
    Inventors: Norbert Schmidt, J├╝rgen Kieselbach
  • Publication number: 20030196501
    Abstract: A roller/damper is configured for use with an associated sliding object such as a drawer that is movable between a first position and a second position along a rail having a rack gear disposed thereon. The roller/damper includes a roller having an outside diameter that is configured for movement along the rail. A gear housing is disposed adjacent the roller and has gear teeth formed thereon for engaging the rail rack gear. A damper rotor is positioned in the gear housing. The roller, gear housing and rotor rotate about a common axis. A damping material is disposed about the damper rotor within the gear housing for damping rotation of the gear housing relative to the rotor. A shaft extends through the roller, the gear housing and the rotor. The rotor is fixed to the shaft and the roller and gear housing are rotational about the shaft independent of one another.
    Type: Application
    Filed: January 29, 2003
    Publication date: October 23, 2003
    Inventors: David A. Doornbos, Steven L. Bivens
  • Patent number: 6412802
    Abstract: A rectilinear propulsion apparatus for propelling a bicycle. The rectilinear propulsion apparatus includes a rectilinear drive portion comprising a plurality of rack gear assemblies fixedly coupled to the sides of the middle frame portion of the bicycle, each of which have a pedal for biasing the rack gear assemblies by the rider. A quadrant drive portion comprising a plurality of quadrant sprocket members fixedly coupled to a main drive gear member which drives a drive wheel of the bicycle. The sprocket members are designed for alternately engaging the rack gear assemblies thereby propelling the bicycle. A clutch member coupled to the main drive gear member permits one of the rack gear assemblies to ratchet upwardly while the opposing gear assembly is being manually biased downwardly by the rider thereby allowing the rider to reciprocately propel the bicycle.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: July 2, 2002
    Inventor: Marion S. Kugel
  • Patent number: 5860299
    Abstract: A clothes washing machine includes a water tub, a spin basket, and a clothes agitator. A vertical dehydrating shaft is fixed to the spin basket, and a laundering shaft extends coaxially within the dehydrating shaft. Upper and lower ends of the laundering shaft are connected to the agitator and a motor respectively, whereby rotation of the motor is always transmitted to the agitator. In order to selectively connect the dehydrating shaft to the laundering shaft (e.g., during a spin-drying operation), a connecting gear is mounted on the dehydrating shaft for rotation therewith and for vertical movement relative thereto. A power-driven actuator is provided for selectively moving the connecting gear up or down. When the connecting gear moves down, lower teeth thereon become operably connected to the motor so that the dehydrating shaft and laundering shaft rotate together.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: January 19, 1999
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Yong Eum, Hwan-Young Choi
  • Patent number: 5794477
    Abstract: A transmission apparatus capable of mono-direction and dual-direction power transmission. It includes a mono-direction gear engageable with the output gear, a transversely slidable platform and an alternate dual-rotation actuating assembly. The alternate dual-rotation assembly includes a link having a first end, which is pivotally affixed to a third gear via a pin spaced apart from a center axis of the third gear, and a second end which is slidable on the vertical side wall of the platform; and a roller held in a roller seat which is slidably contacted by a compression spring. The link further includes first and second sides, the first side of the link having a teeth rack which is engageable with the output gear and the second side of the link is in contact with the roller.
    Type: Grant
    Filed: July 16, 1996
    Date of Patent: August 18, 1998
    Inventor: Chu Ven-Chung
  • Patent number: 5740701
    Abstract: An eccentric gear for a transmission for a washing machine which uses an off center gear having a dual part construction combination with a rack and pinion mechanism, a brake clutch, and a drive clutch to provide the agitation and the high speed spin of the washing machine.
    Type: Grant
    Filed: March 29, 1995
    Date of Patent: April 21, 1998
    Assignee: MTD Products Inc.
    Inventor: Hans Hauser
  • Patent number: 5737965
    Abstract: A transmission is provided for converting rotary input into an oscillating output. The transmission includes a housing with an input shaft and an output shaft, and a series of gears interconnecting the shafts. The gears include a pair of rack gears on opposite sides of an output pinion mounted on the output shaft. The rack gears are held in meshing engagement with the output pinion by a carrier which is mounted upon a floating bushing on the output shaft. The floating bushing allows the rack gears and rack carrier to move side-to-side relative to the output shaft, thereby equalizing the load on the rack gears and preventing binding between the teeth of the rack gears and the teeth of the output pinion.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: April 14, 1998
    Assignee: Maytag Corporation
    Inventors: Jack L. Crain, James C. Jones
  • Patent number: 5732574
    Abstract: A transmission including a housing, an agitator shaft rotatably mounted to the housing, an input shaft rotatably mounted to the housing, and an agitation system which back-and-forth agitation of the agitator shaft when the input shaft rotates relative to the housing. The agitation system includes a rack drivingly connected to the agitator shaft, an eccentric gear drivingly connected to the input shaft, an idler shaft rotatably mounting the eccentric gear to the housing, and a rolling-contact bearing rotatably connecting the eccentric gear and the rack. The rolling contact bearing is press-fit with the eccentric gear and the rack and has a rotational axis displaced from a rotational axis of the eccentric gear. The idler shaft has a first end press-fit into the eccentric gear and a second end slip-fit into a sleeve bearing of the housing. A bearing pad is located between the housing and an end of the rack connected to the agitator shaft.
    Type: Grant
    Filed: June 5, 1996
    Date of Patent: March 31, 1998
    Assignee: White Consolidated Industries, Inc.
    Inventor: Hans Hauser
  • Patent number: 5638719
    Abstract: A transmission is provided for converting rotary input into an oscillating output. The transmission includes a housing with an input shaft and an output shaft, and a series of gears interconnecting the shafts. The gears include a pair of rack gears on opposite sides of an output pinion mounted on the output shaft. The rack gears are held in meshing engagement with the output pinion by a carrier which is mounted upon a floating bushing on the output shaft. The floating bushing allows the rack gears and rack carrier to move side-to-side relative to the output shaft, thereby equalizing the load on the rack gears and preventing binding between the teeth of the rack gears and the teeth of the output pinion.
    Type: Grant
    Filed: October 11, 1995
    Date of Patent: June 17, 1997
    Assignee: Maytag Corporation
    Inventors: Jack L. Crain, J. C. Jones
  • Patent number: 5522242
    Abstract: A transmission for a washing machine which uses an off center gear in combination with a rack and pinion agitation mechanism, a brake clutch, and a drive clutch to provide the agitation and the high speed spin of the washing machine. A lost motion interconnection between the machine's motor and the rack and pinion agitation mechanism allows a measure of relative rotation for actuation of the clutches without movement of the agitator.
    Type: Grant
    Filed: October 3, 1994
    Date of Patent: June 4, 1996
    Assignee: MTD Products Inc
    Inventor: Hans Hauser
  • Patent number: 5509284
    Abstract: A transmission for a washing machine which uses an off center gear in combination with a rack and pinion mechanism, a brake clutch, and a drive clutch to provide the agitation and the high speed spin of the washing machine. The input shaft is in line with the agitator shaft.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: April 23, 1996
    Assignee: MTD Products Inc.
    Inventor: Hans Hauser
  • Patent number: 5379616
    Abstract: A clothes washing machine includes an oscillatory agitator and a rotary spin dry container (tub). The agitator and spin dry container are driven by a drive shaft. The drive shaft rotates only in a first direction during a wash cycle, and only in a second direction during a spin dry cycle. A motion conversion mechanism disposed between the agitator and drive shaft converts the first-direction rotation of the drive shaft into oscillation of the agitator.
    Type: Grant
    Filed: June 4, 1993
    Date of Patent: January 10, 1995
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Sang-Chul Bae
  • Patent number: 4941396
    Abstract: The present invention relates to a reciprocating engine which has an improved reciprocating double ended piston which substantially reduces the size and weight of piston components. The double ended piston comprises a center portion between the two end portions. The center portion having at least one pair of racks located along the longitudinal axis either on the outside surface of a pair of flat surfaces or on opposed inside surfaces along a slot cut into the center portion. At least one crankless drive shaft having a gear or pair of gears mateable with the racks so that the crankless drive shaft (s) are continuously rotated.
    Type: Grant
    Filed: November 28, 1988
    Date of Patent: July 17, 1990
    Inventor: Peter J. McCabe
  • Patent number: 4799644
    Abstract: The invention concerns an actuator for the operation of on-off valves. Said actuator includes a supporting body (1) in which there is transversally disposed at least one pneumatic cylinder (8, 9) which is capable of activating in two directions, a rack (7) which in turn is engaged with a cogged wheel (31; 50; 100) co-axial with the central shaft (15, 66, 104) of said actuator and able to transmit its own rotation through a pair of free wheels (27, 28; 61, 62; 109, 110) which rigidly and alternatively engage themselves in discordant directions with a ring (33, 34; 62, 63; 108) integral with the central shaft of the actuator, and pneumatic pistons for achieving the relative axial movement between the cogged wheel and the shaft of the actuator. Depending on the mutual distance between the free wheels, and in the absence of the pneumatic signal, the actuator has its central shaft blocked or manually maneuvereable.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: January 24, 1989
    Assignee: G.T.I. du Gaianigo Umberto & Co. Snc
    Inventor: Umberto Gaianigo
  • Patent number: 4658664
    Abstract: The pinion is of two-piece construction, the two pieces being identical and nestably mated to define a recess, therebetween, which is interrupted by abutments, and which confines an abutment-engaging pin. Each piece has a plurality of teeth projecting therefrom, and the pieces are so mated that the teeth pluralities project form opposite sides of the formed pinion. A generally U-shaped rack, having teeth formed on the confronting surfaces of the parallel limbs thereof, is in mesh with the pinion, and the pin penetrates an input shaft upon which the pinion is mounted. As the shaft is turned in one direction, the pin drivingly engages the abutments of only one pinion piece, to cause the teeth of the latter to drive the rack in one, given direction. Too, if the shaft is turned in the opposite direction, the pin engages the abutments of only the other pinion piece, to cause its teeth to drive the rack in the same, one, given direction.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: April 21, 1987
    Assignee: Von Duprin, Inc.
    Inventors: Gary R. Jacobs, Paul J. Haeck
  • Patent number: 4608951
    Abstract: This invention relates to improvements in engines of the reciprocating piston type, especially reciprocating piston internal combustion engines suitable for stationary and non-stationary uses. The pistons of the engine are operatively connected to the drive shaft of the engine via an elongated gear-roller gear pinion mechanism. In association with a cylinder-piston unit of the engine there is provided a roller gear pinion, engaged with the drive shaft such that rotation thereof rotates the drive shaft. An elongated roller gear is pivotally connected via an end to a piston, and the opposite open end of said elongated roller gear is meshed with the roller gear pinion. The elongated roller gear is guided through a path via appropriate mechanism which maintains continuous contact between said gears such that reciprocation of the piston within a cylinder produces rotation of the drive shaft.
    Type: Grant
    Filed: December 26, 1984
    Date of Patent: September 2, 1986
    Inventor: Ambrose White
  • Patent number: 4570617
    Abstract: Massaging device comprising a slide movable back and forth along a stationary guide, a massaging brush arranged rotatably upon the slide and rotated, through a shaft, by a motor, and a reversing drive driven by the motor. The direction of motion of the slide is predeterminable and the reversing drive is adapted to be connected to the guide by means of a first gearwheel. The motor is arranged stationarily and the slide is locked in a predeterminable position while the massaging brush continues to rotate. There is provided an endless belt running over two deflecting rollers spaced from each other and driven by the stationarily arranged motor. The slide has a drive-wheel which is connected to the shaft and is in engagement with the belt, the reversing drive, driven by the drive-wheel, is mounted on a drive-carrier which moves upon the slide, the reversing drive being selectively connected to, or disconnected from, the guide and the slide being locked in relation thereto by means of a switching element.
    Type: Grant
    Filed: February 1, 1984
    Date of Patent: February 18, 1986
    Inventor: Heinz G. Baus
  • Patent number: 4495828
    Abstract: A stroke enlarging mechanism comprises a stationary rack, a saddle member driven by an actuator relative to the stationary rack, an operating arm movable relative to the saddle member, and a movable rack secured to the operating arm. A first pinion and a second pinion are rotatably mounted in the saddle member to be engageable with the stationary rack and the movable rack, respectively. A coupling device couples the two pinions with each other. Upon driving the saddle member relative to the stationary rack, the two pinions are rotated thus displacing the operating arm for a distance larger than the driving stroke of the saddle member.
    Type: Grant
    Filed: March 26, 1982
    Date of Patent: January 29, 1985
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventor: Norihiro Iwamoto