Eccentric Driving Shaft And Axle Patents (Class 74/390)
  • Patent number: 9649882
    Abstract: An axle assembly having an axle housing, a wheel end cover and an axle shaft. The axle housing has a tubular member with an end flange coupled thereto. A pair of axle bearings are mounted to the axle shaft and the end flange and support the axle shaft for rotation relative to the axle housing. The wheel end cover is mounted to the end flange and carries a seal that is engaged to the axle shaft. A method for assembling an axle assembly is also provided.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: May 16, 2017
    Assignee: American Axle & Manufacturing, Inc.
    Inventors: James P. Downs, Paul J. Valente
  • Patent number: 9469342
    Abstract: An integrated axle and transmission arrangement may include an axle arrangement for an agricultural vehicle with ground-engaging wheels or tracks. A support structure of the axle arrangement may define an internal mounting volume configured for mounting a transmission assembly therein. First and second stub axles may extend from opposite sides of the support structure along an axle axis. The mounting volume may be disposed along the axle axis.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: October 18, 2016
    Assignee: Deere & Company
    Inventors: Ryan P. Mackin, Daniel J. Burke
  • Publication number: 20120169102
    Abstract: An adjustment device for a seat and more particularly, a carrier in the adjustment device having anti-rock features and increased longevity and a method of forming the outer gear out of hardened steel without the need for heat treating.
    Type: Application
    Filed: August 12, 2010
    Publication date: July 5, 2012
    Inventors: Bruce A. Hiemstra, Michael R. Bittner, Scott A. Profozich, Michael J. Kapusky
  • Publication number: 20090100953
    Abstract: A speed reduction gearing mechanism is adapted to couple a piston/piston rod of a cylinder of an air compressor to a motor spindle to ensure stability and smoothness of operation of the air compressor. The speed reduction gearing mechanism includes a reduction gear that is of a composite structure composed of an internal metallic portion that ensures mechanical strength and an extern ring-like toothed portion of plastic injection molding enclosing the internal portion. The reduction gear functions to convert the rotation of the motor spindle into reciprocation of the piston/piston rod with increased torque applied to the piston rod and effectively enhanced compression ratio between the piston and the cylinder and, due to the composite enclosing structre of the reduction gear, also to ensure more stable operation of the air compressor with reduced shock/vibration and reduced noise to thereby enhance the performance and efficiency of the air compressor.
    Type: Application
    Filed: October 22, 2007
    Publication date: April 23, 2009
    Inventor: CHI-MING CHEN
  • Publication number: 20090019961
    Abstract: To facilitate an integrating operation and to make fabricating cost inexpensive. An idle gear for transmitting rotation of an input gear of a drive motor to a cylindrical gear is rotatably supported by an input side end portion of a specific one crank pin, and therefore, the idle gear may simply be supported by the crank pin, further, a length in an axial direction of the cylindrical gear brought in mesh with both of the idle gear the input gear is sufficiently to a degree of being more or less longer than a distance between remote side ends of the two gears.
    Type: Application
    Filed: April 25, 2006
    Publication date: January 22, 2009
    Applicant: NABTESCO CORPORATION
    Inventor: Harumi Kobayashi
  • Patent number: 6755093
    Abstract: A drive axle assembly for a low floor vehicle utilizes a single input gear assembly to drive a pair of laterally spaced wheel ends. The input gear assembly is positioned next to one of the wheel ends so that the vehicle floor can be lowered to facilitate passenger access to the vehicle. Each wheel end includes a gear reduction assembly with a ring gear rotatably mounted within a gear housing. A drive gear is operatively coupled to the input gear assembly and is in meshing engagement with the ring gear. The gear reduction assembly also includes an output or driven gear, which is larger than the drive gear, to provide the desired gear reduction. The driven gear is also in meshing engagement with the ring gear. A pair of idler gears is rotatably mounted within the gear housing and are in meshing engagement with both the drive and driven gear. The idler gears and drive gear do not have a common centerline.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: June 29, 2004
    Assignee: Meritor Heavy Vehicle Technology, LLC
    Inventors: John L. Bennett, Chihping Kuan, John K. Ma, William C. Sullivan, Edward J. Eshelman, Dean M. House, Tomaz Dopico Varela, Mark C. Smith
  • Patent number: 6752227
    Abstract: A brake (15) is arranged between a drive motor (1) and reduction steps (3, 11). By arranging the reduction steps (3, 11) directly adjacent one another, adequate cooling of one of the reduction steps is achieved. The wheel bearing (13) is located radially outside but axially in the area of the first reduction step (3). By this arrangement, a very compact final drive, is thereby created, in the axial direction, characterized by a favorable efficiency and ease of service.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: June 22, 2004
    Assignee: ZF Friedrichshafen AG
    Inventor: Max Bachmann
  • Patent number: 6540632
    Abstract: A wheel drive preferably used in a low-platform bus for driving the wheels is driven by a drive motor (1) eccentrically arranged relative to the wheel axle (12) and a gearwheel (2). The driven gearwheel (2) of a reduction gear (3) is in intermeshing connection with two additional gearwheels (6) and one outer central wheel (5) in a manner such that the drive torque is distributed onto the gearwheels (6) and the outer central wheel (5) and the driven gearwheel (2) can be floatingly supported so that a uniform load distribution results.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: April 1, 2003
    Assignee: ZF Friedrichshafen AG
    Inventors: Harald Wendl, Max Bachmann
  • Patent number: 6095005
    Abstract: A differential mechanism, connected to a driveshaft, transmits power to two halfshafts laterally directed toward the driven wheels of a motor vehicle. Each halfshaft is driveably connected to a pinion, which continually engages a gear fixed to an axle shaft, the pinion and gear forming a speed reduction gearset located between the halfshaft and axle shaft. Each gearset is located in a drop gear housing. Opposite axial ends of each halfshaft are fixed to a differential housing and the drop gear housing. Two extension tubes, each press fitted in the differential housing and a corresponding drop gear housing, provide structural continuity therebetween.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: August 1, 2000
    Assignee: Ford Motor Company
    Inventors: John H. Tanzer, Tim Howard, Binod Kumar Agrawal
  • Patent number: 5679088
    Abstract: A change gear system comprises a driven case, a driving shaft and shifting means for shifting the drive shaft, and three sliding frames are provided in alignment in the driven case. Each sliding frame is provided with a pair of rack gears with teeth facing each other and cam surfaces facing each other in parallel with a pitch line of the rack gears. The sliding frames are provided for movement at an angle of 120 (deg.) in different directions perpendicular to the pitch, respectively. The driving shaft is provided with pinions and cam plates. The cam plates are in contact with the cam surfaces, and serve for positioning the sliding frames. The cam plates are configured such that arcs C1 are linked alternatingly with arcs C2.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: October 21, 1997
    Inventor: Keiichi Akashi
  • Patent number: 5487439
    Abstract: A rear wheel steering device utilizes a hypoid gear wheel having a spherical bearing disposed eccentric to a center axis of the hypoid gear wheel. A stud shaft mounted to a rod has an end connected to the hypoid gear wheel via the spherical bearing so that rotation of the hypoid gear wheel moves the rod in an axial direction. The rod may then be jointed to the steering arms of a pair of wheels in order to steer them. This device is an improvement over the prior art in that it eliminates the costs of production required by a rack and pinion system, and the tensioning system therefor.
    Type: Grant
    Filed: February 7, 1994
    Date of Patent: January 30, 1996
    Assignee: Kayaba Industry Co., Ltd.
    Inventors: Katsukuni Kabuto, Joji Otsuka
  • Patent number: 5163826
    Abstract: A crescent pump gear including: a housing having a chamber communicating with an intake port and a discharge port; a shaft journaled for rotation within said chamber; an externally toothed inner gear mounted centrally on said shaft about a first axis; an internally toothed annular gear eccentrically mounted for rotational engagement with said inner gear about a second axis; a crescent contacting a portion of said inner gear has a dual cycloidal tooth profile generated about a first generating circle and said outer gear has a dual cycloidal tooth profile generated about a second generating circle.
    Type: Grant
    Filed: October 23, 1990
    Date of Patent: November 17, 1992
    Inventor: Eric E. Cozens
  • Patent number: 5142943
    Abstract: A vehicle has a motor with a shaft extending from each end to drive a pair of opposed wheel axles connected to a pair of wheels. Each wheel axle extends into an axle housing. There is a control cylinder in each housing connected to rotate the wheel axle. The control cylinder acts as a driven clutch and is engaged by a pressure plate. A ring gear in each housing is journaled to the wheel axle. The ring gear has a cam face that engages a cam face located on the pressure plate which has a clutch face and a cam face. The pressure plate is journaled to the wheel shaft. A cam on the face of the ring gear and the clutch plate moves the ring gear and the clutch plate axially apart and this action forces the faces of the pressure plate and the driven clutch together.
    Type: Grant
    Filed: September 30, 1991
    Date of Patent: September 1, 1992
    Inventor: Leon D. Hughes
  • Patent number: 5101678
    Abstract: A coupling device for power transfer between drive and driven shafts coaxially arranged with each other for relative rotation, which includes an inner member mounted on one end of the drive shaft for rotation therewith and having an eccentric cylindrical support portion the central axis of which is radially displaced from the central axis of the drive shaft, an outer cylindrical casing coaxially connected to one end of the driven shaft for rotation therewith and being arranged in surrounding relationship with the support portion of the inner member, the casing having a number of internal teeth formed therein, an inscribed gear rotatably carried by the support portion of the inner member and being in meshing engagement with the internal teeth of the casing to transfer the power only from the drive shaft to the driven shaft in response to the difference in rotational speed between the shafts, and a separator rotatably carried by the support portion of the inner member and having a guide portion disposed between
    Type: Grant
    Filed: March 1, 1991
    Date of Patent: April 7, 1992
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Masaki Inui
  • Patent number: 5078018
    Abstract: A rear wheel steering mechanism is disclosed in which an eccentric shaft drivingly connected to an electric motor includes an eccentric portion, a motion transmitting body is connected to a rod assembly in longitudinal fit manner, and a spherical joint whereby eccentric motion of said eccentric portion in response to rotational motion of the eccentric shaft causes said motion transmitting body to impart at least a reciprocal motion to said rod assembly.
    Type: Grant
    Filed: April 4, 1991
    Date of Patent: January 7, 1992
    Assignee: Atsugi Unisia Corporation
    Inventors: Norihiro Saita, Ryoji Kasahara, Toshimi Takeshita, Torahiko Koshiba
  • Patent number: 4896740
    Abstract: A wheel bearing support with an eccentric drive has a drive shaft extending through the input side bearing arrangement. A gear is provided around the internal circumference of the wheel hub, which is driven by the drive shaft via intermediate gears. Various bearing arrangements provide minimum axial length and torsional moment.
    Type: Grant
    Filed: December 18, 1987
    Date of Patent: January 30, 1990
    Assignee: Deere & Company
    Inventors: Volker Hueckler, Ulrich Eckhardt
  • Patent number: 4701093
    Abstract: A sweep auger apparatus is radially disposed within a circular bin for moving a free flowing granular material across the floor of the bin toward the center of the bin. A motor is connected to the radially inner end of the auger shaft to rotate the auger about its horizontal axis. A drive wheel assembly is connected to the radially outer end of the auger shaft for supporting the outer end of the auger shaft and for revolving the auger around the central vertical axis of the bin. The drive wheel assembly includes a speed reduction mechanism whereby the speed of rotation of the drive wheel is substantially less than the speed of rotation of the auger shaft.
    Type: Grant
    Filed: October 31, 1985
    Date of Patent: October 20, 1987
    Assignee: Sukup Manufacturing Company
    Inventor: Marvin G. Meyer
  • Patent number: 4448092
    Abstract: A gear transmission for the final drive of a heavy automotive vehicle, such as a tracked vehicle, comprises two planar gear sets each having at least one gear rotatably supported on a respective housing part. The two housing parts are rotatable relatively about the axis of a coupling shaft to vary the interaxial spacing of input and output shafts connected to the respective sets and offset from the coupling shaft. This allows the interaxial spacing to be adjusted for various vehicle requirements without varying the transmission ratio.
    Type: Grant
    Filed: August 22, 1980
    Date of Patent: May 15, 1984
    Assignee: Zahnradfabrik Friedrichshafen Aktiengesellchaft
    Inventor: Bernhard Binger
  • Patent number: 4425825
    Abstract: A drive apparatus (10) includes a drive member (11) and a connected driving ring gear (23) rotatable about a first axis (21) for supplying power to a torque converter (13). A compact speed change mechanism (16) interconnects the driving ring gear (23) and torque converter (13) and includes a driven ring gear (25) connected to the torque converter, and a support device (17,20,32,50). The support device (17,20,32,50) rotatably supports the driven ring gear (25) on a second axis (27) offset from the first axis (21), and the meshed ring gears (23,25) have a preselected tooth differential to effect a speed change therebetween. The support device includes a support member (17) having a portion (18) journalled in the drive member (11), and an arm (50) on the support member is rotationally fixed while it is allowed to have a preselected amount of play movement.
    Type: Grant
    Filed: May 12, 1980
    Date of Patent: January 17, 1984
    Assignee: Caterpillar Tractor Co.
    Inventors: Robert O. Chambers, Marion E. Ogden
  • Patent number: 4386892
    Abstract: In a hydrostatic gear machine of the type having an internally toothed outer gear and an externally toothed inner gear wherein the gears have different numbers of teeth, the gears being meshed with the outer gear surrounding gear, particularly advantageous relationships between the numbers of teeth and the shapes of the tooth flanks are provided to permit economic manufacture of the machine for use as a motor or pump.
    Type: Grant
    Filed: October 17, 1980
    Date of Patent: June 7, 1983
    Assignee: G. L. Rexroth GmbH
    Inventors: Bodo Stich, Horst Fischer, Helmut Schulz
  • Patent number: 4326389
    Abstract: An improved frozen dessert maker of the type having a motor with an output shaft mounted within a base, a can for containing dessert mix to be frozen, a dasher mounted within the can, and a top for sealing the can and supporting the dasher includes a plurality of coolant packs containing a coolant positioned concentrically about the can and secured to the can by means of a strap having a draw pull catch and strike, and a drive train wherein a second shaft parallel to the output shaft orbits about the output shaft. A lower stud which extends upwardly from the base acts as a bearing surface for an upper stud which extends downwardly from a platform supporting the can and coolant packs so that rotation of the output shaft of the motor causes the upper stud to move reciprocally against the lower stud causing the can and packs to move in a somewhat circular path about the axis of the second shaft with a reciprocating rotational motion superimposed on the circular path.
    Type: Grant
    Filed: April 22, 1980
    Date of Patent: April 27, 1982
    Inventor: Edmund C. Frost
  • Patent number: 4297920
    Abstract: A cycloid gear is provided which comprises a pair of eccentric discs which are attached to a drive shaft and which carry curved discs thereon having outer peripheries of cyclodic curved shape which roll off along a plurality of rollers that engage said outer peripheries, the pair of curved discs having bore holes extending therethrough in overlapping relation to one another respectively to define an effective axially directed opening through each pair of overlapping bore holes, there being a plurality of axially directed bolts which pass through said effective axially directed openings and which are connected to an output shaft to drive the output shaft as the curved discs rotate with rotation of the drive shaft and eccentric discs.
    Type: Grant
    Filed: July 5, 1979
    Date of Patent: November 3, 1981
    Inventor: Hans Richter
  • Patent number: 4148262
    Abstract: Drive system for a railway vehicle. In a railway vehicle utilzing a high speed motor whose output shaft is arranged generally parallel to the direction of movement of the vehicle, there is provided a gearing system for connecting said motor to a driven axle of the vehicle of such nature that only a minimum of unsprung mass is present and said gearing occupies only a small amount of space. In general, the motor drives through at least two series connected gear reduction units and the output of the second thereof drives a hollow shaft surrounding the vehicle axis and flexibly connected thereto. Thus, the entire drive system excepting only for the flexible connection to the axle may be mounted on the spring supported portion of the vehicle.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: April 10, 1979
    Assignee: Carl Hurth Maschinen-und Zahnradfabrik
    Inventor: Johann Eichinger