Worm Patents (Class 74/425)
  • Patent number: 11093663
    Abstract: A method for designing a gearset meeting one or more design targets is provided. In particular, the design target is efficiency. Initially, a size and ratio of the gear set is specified. Gear friction coefficients are then calculated, and a value for a design target for the gear set is calculated. One or more of the macro-geometry parameters are modified, and the macro-geometry parameters are chosen such that the advantageous effects of one macro-geometry parameter on the design target counteract any disadvantageous effects of another macro-geometry parameter. This allows for a design for a gearset meeting the one or more design targets to be produced. The efficiency calculation includes the effect of a lubricant. Further design targets can include gear noise and gear durability.
    Type: Grant
    Filed: January 31, 2018
    Date of Patent: August 17, 2021
    Assignee: ROMAX TECHNOLOGY LIMITED
    Inventors: Barry James, Michael Platten, Sharad Jain, Kathryn Taylor, Christopher Halse, Maik Hoppert
  • Patent number: 11054012
    Abstract: A generator driven gear for use in an integrated drive generator has a gear body extending between a first end and a second end and having a disc extending radially outwardly. A boss extends from the disc toward the second end. There are outer gear teeth outwardly of an outer diameter of the disc. The outer gear teeth having a unique gear tooth profile with roll angles A, B, C, and D. An integrated drive generator and a method are also disclosed.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: July 6, 2021
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Derek R. Hochstetler, Ted A. Martin, Duane C. Johnson, Glenn C. Lemmers, Jr.
  • Patent number: 11041543
    Abstract: A gearwheel pairing for a helical gearing, comprising a helical gear with a first toothing segment, and a worm with a second toothing segment, wherein the first toothing segment and the second toothing segment can be brought into intermeshing and form an involute toothing when intermeshed, the materials of the first and the second toothing segments are chosen such that when intermeshed there results a plastic-metal material pairing, and the toothing segment made of plastic has a first normal tooth thickness and the toothing segment made of metal has a second normal tooth thickness, wherein the ratio of the first normal tooth thickness to the second normal tooth thickness is increased by 10 to 200% with respect to a reference profile.
    Type: Grant
    Filed: May 23, 2018
    Date of Patent: June 22, 2021
    Assignee: IMS Gear SE & Co. KGaA
    Inventors: Steffen Aberle, Egor Melnikov, Sebastian Schlude, Matthias Koop
  • Patent number: 11025132
    Abstract: The present invention relates to a case for a servomotor having a rotatable output shaft, wherein the case comprises at least a partial interior volume or enclosure for enclosing at least a portion of the servo; a front end having a front face; and a front rotatable disc located at the front end, at least a portion of the front rotatable disc projecting out from the front face, the front rotatable disc configured to directly or indirectly functionally engage the output shaft and to be rotated thereby.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: June 1, 2021
    Assignee: 2576150 ONTARIO CORP.
    Inventors: Jonathan Edwards, Daniel Kitchen
  • Patent number: 10948069
    Abstract: A housing for a transmission, in particular an actuator housing. The housing having a housing wall and ribs that protrude from the housing wall to the outside and/or inside. The protruding ribs are at least partially arranged such that they form a honeycomb-shaped structure on the housing wall.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: March 16, 2021
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventor: Torsten Kuhnt
  • Patent number: 10940801
    Abstract: An actuating device for a component includes a shaft, a housing, a clutch ring, a drive gear, and a motor drive engaged with the housing and drivably coupled to the drive gear. The shaft includes a plurality of detent teeth. The housing is movably disposed around the shaft and is coupled to the component. The housing includes a plurality of tabs. The clutch ring is movably disposed around the shaft, and includes a plurality of cam surfaces, a plurality of engagement grooves and a plurality of detent recesses. Each tab of the housing is configured to be at least partially and removably received within a corresponding engagement groove. Each detent recess is configured to releasably engage with a corresponding detent tooth. The drive gear is movably disposed around the shaft and includes a plurality of cam followers. Each cam follower is configured to travel on a corresponding cam surface.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: March 9, 2021
    Assignee: Motherson Innovations Company Limited
    Inventors: Tom Harris, David Kershaw, Gareth Aspden, Levente Kurti
  • Patent number: 10927924
    Abstract: A winch-winding assembly for use with a flatbed winch, for example. The winch-winding assembly can be used for winding tie-down straps. The winch-winding assembly can include a gear system, a drive shaft connected to the gear system in order to cause rotation of the gear system and an engagement arm being configured to engage with and rotate part of the flatbed winch. A drill-support mechanism can be further provided to guide or support a body of a hand-held drill during engagement and rotation of the drive shaft. The engagement arm can comprise a stem and a finger mounted to the stem and being displaceable between a retracted position disengaging the flatbed winch, and an extended position engaging the flatbed winch, to rotate the winch drum in response to rotation of the stem.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: February 23, 2021
    Assignee: USINAGE NUMÉRIQUE H.B. INC.
    Inventors: Hermel Bujold, Jacques Fortin, Vincent Girard, Pierre Thériault, Michel Taillon
  • Patent number: 10722231
    Abstract: A surgical stapling apparatus for progressively stapling and forming an incision in body tissue is provided. The apparatus includes a body portion and a tool assembly supported on the body portion. The apparatus further includes an input cam member slidable within the body portion, a drum member rotatably supported within the body portion, and an output cam member slidable within the body portion. The drum member is coupled to the input cam member such that linear movement of the input cam member effects rotatable movement of the drum member. The output cam member is coupled to the drum member such that rotatable movement of the drum member effects linear movement of the output cam member. Linear movement of the input cam member effects movement of an anvil in relation to a cartridge between unclamped and clamped positions.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: July 28, 2020
    Assignee: Covidien LP
    Inventor: Stanislaw Kostrzewski
  • Patent number: 10720813
    Abstract: A rotary apparatus includes a motor including a rotary shaft, a plurality of gears including an output gear, and a housing accommodating the motor and the plurality of gears. The housing is separable into a first housing and a second housing. The motor includes a first end portion and a second end portion located on an opposite side of the first end portion. The rotary shaft is derived from the first end portion. The second housing includes a first regulating portion regulating a position of a part of the motor on the first end portion. The first housing includes a projecting portion projecting toward the second housing side. The projecting portion urges the second end portion of the motor toward the first regulating portion side directly or via another member.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: July 21, 2020
    Assignee: MINEBEA MITSUMI INC.
    Inventors: Koichiro Hirabayashi, Yukimasa Matsumura, Akiko Ikuta
  • Patent number: 10704666
    Abstract: A transmission for a motor vehicle includes an electric motor. A rotor shaft is connected in a torque-proof manner to a rotor of the electric motor. At least one bearing directly supports the rotor shaft. A transmission shaft is connected in a torque-proof manner to the rotor shaft. Both the transmission shaft and the rotor shaft are supported directly on a transmission component by the at least one bearing.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: July 7, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Kim Führer, Martin Brehmer, Andreas Geiger, Thomas Riedisser
  • Patent number: 10697361
    Abstract: An assembly for an exhaust bypass valve of a two-stage turbocharger can include a first turbocharger stage; a second turbocharger stage; an exhaust bypass valve that includes an open state and a closed state; an actuator; and a linkage mechanism that links the exhaust bypass valve to the actuator where the linkage mechanism includes a spring-biased linkage with a preset load where, in the closed state of the exhaust bypass valve, an axial length of the spring-biased linkage increases responsive to application of a load by the actuator that exceeds the preset load.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: June 30, 2020
    Assignee: Garrett Transportation I Inc.
    Inventors: Emeric Genin, Marylene Ruffinoni, Jean-Luc Perrin, Chris Groves, Damien Marsal
  • Patent number: 10677341
    Abstract: A housing for a transmission, in particular an actuator housing. The housing having a housing wall and ribs that protrude from the housing wall to the outside and/or inside. The protruding ribs are at least partially arranged such that they form a honeycomb-shaped structure on the housing wall.
    Type: Grant
    Filed: October 5, 2015
    Date of Patent: June 9, 2020
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventor: Torsten Kuhnt
  • Patent number: 10670114
    Abstract: An actuating drive for an air deflector device on a vehicle includes a controllable electric motor having an output shaft; a step-down mechanism having a first worm drive and a second worm drive, the first worm drive being coupled by a first worm to the output shaft of the electric motor, the first worm drive having a worm wheel configured to be brought into operative connection with a worm of the second worm drive, the second worm drive having a worm wheel configured to drive the adjustment shaft for the air deflector device; and a mechanical actuating force transmitter configured to transmit an actuating force to the air deflector device.
    Type: Grant
    Filed: August 18, 2015
    Date of Patent: June 2, 2020
    Assignees: DR. ING. H.C. F. PORSCHE AKTIENGESELLSCHAFT, AUDI AG, SUSPA GMBH
    Inventors: Bernd Herrmann, Joachim Paul, Sebastian Weber, Steffen Ullrich, Daniel Spielberg, Johannes Preis, Bernd Hollerbaum, Matthias Glass, Harald Bielesch, Johannes Lang, Marc Feihl
  • Patent number: 10634226
    Abstract: The present invention relates to the field of linear actuators, and in particular, to a modular electric linear actuator facilitating assembly and disassembly. The modular electric linear actuator of the present invention mainly includes components such as a motor group, a screw group, an inner tube group, an outer tube group, and pins. The components are fixed through clamping or the pins, so that installation using screw bolts is avoided. By adopting the modular assembly manner, the disassembly is convenient, and the assembly is fast, so that less labor is required, and the production cost is reduced. Moreover, the pins are used for fixing in the end, so that the stability of the entire structure is ensured.
    Type: Grant
    Filed: November 7, 2018
    Date of Patent: April 28, 2020
    Inventors: Hanwan Zhong, Ming Liu
  • Patent number: 10550919
    Abstract: A gearbox assembly for an electric power assisted steering apparatus comprising: a first pivoting means for the worm shaft main bearing which reacts the axial component of the worm shaft tooth load for a first direction of gearwheel torque but not for a second, opposing, direction of gearwheel torque and defines at least one first pivot point about which the main bearing pivots that is located on a pivot axis, a second pivoting means for the worm shaft main bearing, positioned distal from the first pivoting means, which reacts the axial component of the worm shaft tooth load for the second direction of gearwheel torque but not the first direction of gearwheel torque and defines at least one second pivot point about which the main bearing pivots that is located on a second pivot axis, the second pivot point being spaced apart from the first pivot point.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: February 4, 2020
    Assignee: TRW Limited
    Inventor: Michael Appleyard
  • Patent number: 10502282
    Abstract: A drive device includes a reduction drive, an accommodation portion, and an output unit. The reduction drive includes at least two resin helical gears meshed with each other. The at least two helical gears include an output-side helical gear and another helical gear. The output-side helical gear is located closer to the output unit than the other helical gear in a power transmission path of the reduction drive. The housing cover includes a restriction portion located within a range that includes a straight line intersecting the first center axis and the second center axis. The restriction portion projects toward a bottom of the gear accommodation portion. The restriction portion is configured to allow for slidable contact with the output-side helical gear to restrict axial bending of the output-side helical gear.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: December 10, 2019
    Assignee: Denso Corporation
    Inventor: Yasufumi Fujii
  • Patent number: 10352399
    Abstract: An actuator assembly having an actuator, a worm gear, a first gear unit, a second gear unit, and a biasing member. The actuator may rotate the worm gear, first gear unit, and second gear unit in first rotational directions while the biasing member may rotate the worm gear, first gear unit, and second gear unit in second rotational directions.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: July 16, 2019
    Assignee: Lear Corporation
    Inventors: Curtis Hudson, Mark R. Keyser, Andrzej Dlugokecki
  • Patent number: 10312773
    Abstract: Each cross-section of the connector member assembling hole and the assembly main body 51a in a direction intersecting the insertion direction has a point-symmetrical circular shape with the insertion shaft center FC as the center. A pair of connector-side female terminals 57a, opposed to each other with the insertion shaft center FC as the center, is provided at the distal end side in the insertion direction of the assembly main body 51a, and a pair of brush-side male terminals, opposed to each other with the insertion shaft center FC as the center and to which the connector-side female terminals 57a are connected, is provided to a portion of the brush holder opposite to the connector member assembling hole.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: June 4, 2019
    Assignee: Mitsuba Corporation
    Inventors: Hiroyuki Uchimura, Masashi Suto, Hiromitsu Takahashi, Takayuki Yokoyama
  • Patent number: 10174800
    Abstract: A force transmission device, tappet, and method of manufacture. The tappet may include a shaft portion for transmission of a thrust loading from an actuating member to a piston of a disc brake and a gear portion for transmission of rotary motion to the shaft. The gear portion may be formed as a separate piece from the shaft portion.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: January 8, 2019
    Assignee: Meritor Heavy Vehicle Braking Systems (UK) Limited
    Inventors: Refaat Malki, Martin Taylor
  • Patent number: 10088016
    Abstract: A winch-winding assembly for use with a flatbed winch, for example. The winch-winding assembly can be used for winding tie-down straps. The winch-winding assembly can include a gear system, a drive shaft connected to the gear system in order to cause rotation of the gear system and an engagement arm being configured to engage with and rotate part of the flatbed winch. A drill-support mechanism can be further provided to guide or support a body of a hand-held drill during engagement and rotation of the drive shaft. The engagement arm can comprise a stem and a finger mounted to the stem and being displaceable between a retracted position disengaging the flatbed winch, and an extended position engaging the flatbed winch, to rotate the winch drum in response to rotation of the stem.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: October 2, 2018
    Assignee: USINAGE NUMERIQUE H.B. INC.
    Inventors: Hermel Bujold, Jacques Fortin, Vincent Girard, Pierre Thériault, Michel Taillon
  • Patent number: 10066726
    Abstract: A worm wheel of a reduction gear for an electric power steering includes: a boss part including a hollow portion formed along an axial-direction center for coupling of a shaft and having first coupling surfaces, each of which is formed by a first convex surface and a first concave surface continuously repeated along an outer peripheral surface; and a tooth-shaped part having second coupling surfaces, each of which is formed by a second convex surface and a second concave surface continuously repeated along an inner peripheral surface, such that the second coupling surfaces are coupled corresponding to the first coupling surfaces, wherein a plurality of teeth are continuously formed along a periphery thereof with spacing portions interposed therebetween.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: September 4, 2018
    Assignee: MANDO CORPORATION
    Inventor: Hee Chul Ahn
  • Patent number: 10001194
    Abstract: A driving device for driving in rotation a toothed wheel, in particular a turntable, has a worm intended to mesh with the toothed wheel, a motor to drive the worm in rotation, a flexible sleeve that partially surrounds the worm in such a way as to form an assembly described as a worm/sleeve assembly, and a pre-stressing unit. The motor is arranged in a structure that is fitted pivotably relative to the worm/sleeve assembly, and the driving device also has a force transfer unit connecting the motor to the sleeve at a second extremity of the worm.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: June 19, 2018
    Assignee: Micro Controle-Spectra Physics
    Inventors: Eric Durand, Bruno Rety
  • Patent number: 9989090
    Abstract: A slewing bearing providing a first ring, a second ring, the rings being concentric around a central axis (X1), at least one row of rolling elements arranged between the rings in order to form an axial thrust that can transmit axial forces, at least one row of rolling elements arranged between the rings in order to form a radial thrust that can transmit radial forces, and at least one sealing assembly arranged between the first ring and the second ring. The sealing assembly provides first sealing means being arranged outside second sealing means, an annular sealed chamber being defined between the first sealing means and second sealing means.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: June 5, 2018
    Assignee: AKTIEBOLAGET SKF
    Inventors: Bruno Capoldi, Lionel Martin, Eric Robba
  • Patent number: 9976628
    Abstract: A positioning structure for a worm wheel which is configured to mesh with a worm spindle and contains: a body, a plurality of rolling assemblies, and at least one attaching material. The body includes plural accommodating grooves and plural recesses, wherein each recess forms on a bottom face of each accommodating groove and communicating with said each accommodating groove. Each rolling assembly includes a holder, a rolling ball, and a magnetic attracting element, wherein a width of the holder is less than a width of said each accommodating groove so as to form a gap between the holder and said each accommodating groove. Each attaching material is filled in the gap, and said each rolling assembly is adjustably moved to a fixing position of said each accommodating groove by using said each recess, such that said each attaching material locates the holder in said each accommodating groove.
    Type: Grant
    Filed: November 5, 2015
    Date of Patent: May 22, 2018
    Assignee: INNOSERV FA INC.
    Inventors: Yu-Chuan Chiu, Chih-Meng Wu
  • Patent number: 9951859
    Abstract: A gearset includes a gearset housing, a drive shaft, and a radial fan fixed to the drive shaft. Disposed in surrounding relationship to the radial fan is an air-guiding cover which includes a gearset housing section to at least partially cover the gearset housing, a cylindrical section adjoining the gearset housing section and configured to receive an attachment for securement to the drive shaft, and a conical section adjoining the cylindrical section. The conical section of the air-guiding cover is disposed in surrounding relationship to the radial fan directly and without any dead space.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: April 24, 2018
    Assignee: FLENDER GMBH
    Inventor: Simon Becka
  • Patent number: 9927012
    Abstract: An improvement of a worm gear speed reducer is provided where the output gear is substituted by a threaded chain comprised of nut-like threaded bodies mounted on the extended rods of two parallel endless chains, thus the contact surfaces of the drive screw and the threaded chain are much greater than the contact surfaces of the worm gear reducer, and thus the load capacity and wear resistance are much higher. The screw applies the driving force at the centroid of the contact surface of the threaded chain. There are three embodiments which may be a roller screw, a ball screw or a plain translation screw. With the roller screw or the ball screw there is rolling contact and thus the efficiency of the present invention is higher than that of the worm gear reducer which permits it to be used as an amplifier.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: March 27, 2018
    Assignee: UNIVERSIDAD NACIONAL AUTONOMA DE MEXICO
    Inventors: Enrique Jaime Chicurel Y Uziel, Filiberto Gutierrez Martinez
  • Patent number: 9923428
    Abstract: A motor device may include a motor comprising a motor shaft protruded from a motor main body; a worm gear connected with the motor shaft through a coupling; a worm wheel engaged with the worm gear; and a frame on which the motor, the worm gear and the worm wheel are mounted. The coupling may include a motor side coupling part; a transmission member; and a worm gear side coupling part. The motor side coupling part and the transmission member may be relatively movable in a first direction perpendicular to the axial line direction. The transmission member and the worm gear side coupling part may be relatively movable in a second direction perpendicular to the axial line direction and intersecting the first direction. A compression coil spring may be disposed between the transmission member and an end part of the worm gear.
    Type: Grant
    Filed: February 28, 2014
    Date of Patent: March 20, 2018
    Assignee: NIDEC SANKYO CORPORATION
    Inventors: Mamoru Yamaoka, Takafumi Kasuga, Yuji Shingu
  • Patent number: 9729022
    Abstract: An electric power steering device (1) according to the present invention includes: a gearbox; and a driving control unit (4) connected to the gearbox through a mounting-portion contact surface (7). The driving control unit (4) includes an outer-diameter gradually increasing surface (11) formed on one end portion thereof, the outer-diameter gradually increasing surface (11) being connected so that an outer diameter thereof on the mounting-portion contact surface (7) matches with an outer diameter of the gearbox. Thus, it is possible to prevent a liquid from entering inside through the mounting-portion contact surface (7), thereby preventing electrical insulating properties of internal electric components from being lowered.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: August 8, 2017
    Assignee: Mitsubishi Electric Corporation
    Inventors: Satoru Akutsu, Kohei Ushio, Yoshihito Asao
  • Patent number: 9512651
    Abstract: A low release effort eccentric double ratchet, double pawl vehicle latch includes a ratchet, a primary pawl, an auxiliary ratchet and a secondary pawl. A drive mechanism including a gear cam wheel sequences movement of the secondary pawl to open and reset the latch. Upon reset, the drive mechanism actuates the auxiliary ratchet back to a closed state in a soft manner without using a hard stop; instead the latch has a cushioning spring that is used to softly stop the gear train during the reset absorbing motor energy and thus eliminating impact noise.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: December 6, 2016
    Assignee: Magna Closures S.p.A.
    Inventors: Marco Taurasi, Francesco Cumbo
  • Patent number: 9509248
    Abstract: A steering device for use in solar tracking equipment includes: a fixed base (10); a rotary base (20) correspondingly connected to the fixed base (10) and provided with a worm gear (22); and a driving module (30) disposed in the fixed base (10) and including a worm unit (33) and an adjustment mechanism (34), the worm unit (33) includes a cylindrical body (331) and a worm (332) supported in the cylindrical body (331), and the cylindrical body (331) is pivoted in the fixed base (10), the adjustment mechanism (34) is disposed corresponding to the cylindrical body (331) for adjusting the swinging motion of the cylindrical body (331), thereby enabling the worm (332) and the worm gear (22) to be mutually engaged. Accordingly, the backlash between the worm and the worm gear is able to be adjusted thereby enhancing the rotation precision.
    Type: Grant
    Filed: November 11, 2014
    Date of Patent: November 29, 2016
    Assignee: TIMOTION TECHNOLOGY CO., LTD.
    Inventor: Chou-Hsin Wu
  • Patent number: 9472998
    Abstract: A linear actuator has a stator with two stator coils and pole plates forming stator poles. A rotor is rotatably mounted to interact with the stator poles. The rotor has a hollow cup shaped permanent magnet fitted to a screw shaft. An output shaft, which is co-axial with the rotor, is driven by the rotor through a screw connection. The rotor is supported by a single rotary bearing located within the magnet, axially between axial ends of the permanent magnet.
    Type: Grant
    Filed: December 6, 2013
    Date of Patent: October 18, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Bruno Neuhaus, Michael Watzek, Miha Furlan
  • Patent number: 9435400
    Abstract: A drive unit includes an electric motor, a worm shaft coupled to the motor, a worm gear engaging with the worm shaft, and an output shaft connected to the worm gear. The motor has a motor shaft on which the worm shaft is fixed. The worm shaft is made of plastic. The drive unit further includes a metallic sleeve press fitted to the motor shaft. An outer profile of the sleeve is non-circular. A correspondingly shaped receiving hole is formed in the worm shaft to receive the sleeve. The sleeve rotates with the motor shaft and drives the worm shaft.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: September 6, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventors: Chi Wang Cheung, Zhong Ping Wu, Hong Yu Ding
  • Patent number: 9381900
    Abstract: An electric brake booster includes an electric motor activating a booster piston acting on the master-cylinder during brake pedal activation. The booster piston is driven in the direction of the action of same on the master-cylinder by an electric motor linked to a mechanical transmission that includes a screw held by the motor shaft. The screw meshes with two symmetrical worm gears that are integral with respective transmission shafts housed in a bearing of the body of the brake booster. The two shafts each carry a spur gear that meshes with a rack of the booster piston. The shafts are free in translation relative to the screw and to the body of the electric brake booster but are integral with each other in the translational movement of same. The shafts are integrally connected in translation by a coupling member formed by a crosspiece carrying two rotation bearings.
    Type: Grant
    Filed: June 19, 2013
    Date of Patent: July 5, 2016
    Assignee: Robert Bosch GmbH
    Inventors: Roman Winkler, Philippe Richard, Bastien Cagnac, Francois Gaffe, Jean-Marc Ritt
  • Patent number: 9254742
    Abstract: A grille shutter for a vehicle includes a frame, an actuator, a grille flap, and a grille shaft. The actuator includes a casing mounted on the frame, an electric motor received in the casing, an output member having a first end, a second end and a stop projection between the first and second ends, and stop members stationary relative to the casing. The stop members cooperate with the stop projection to limit rotation of the output member. The grille shaft is coupled to the output member and rotatably couples the grille flap to the frame.
    Type: Grant
    Filed: October 1, 2014
    Date of Patent: February 9, 2016
    Assignee: JOHNSON ELECTRIC S.A.
    Inventor: Yan Chappex
  • Patent number: 9234570
    Abstract: This invention refers to a speed reducer made up of a chain carrying nuts and of a screw, i.e., a ball screw in the first embodiment, a roller screw in the second embodiment. The ball screw or the roller screw drives the nuts on one of the straight stretches of the chain. The ball screw, or the roller screw, can be almost as long as the distance between the centers of the output sprockets on which the chain is mounted. Given these features and because the nuts wrap the ball screw, or the roller screw in a great surface, the load capacity is high. Given that in both embodiments there is rolling contact, friction is low and, as a consequence, efficiency is high, and this allows the present invention to serve also as an amplifier.
    Type: Grant
    Filed: January 23, 2014
    Date of Patent: January 12, 2016
    Assignee: Universidad Nacional Autonoma de Mexico
    Inventors: Enrique Jaime Chicurel Y Uziel, Filiberto Gutierrez Martinez
  • Patent number: 9222547
    Abstract: A worm wheel (50) is structured integrally with an output shaft (52). The worm wheel (50) includes the output shaft (52), a circular flange (50a) with the output shaft (52) placed as the center, and teeth (50b) formed on the periphery of the flange (50a) and in mesh with a worm. The flange (50a) is provided with a first recessed flange portion (50c) opposite to the side of the output shaft (52), and the bottom (54) of the first recessed flange portion (50c) has a ring-shaped first planar portion (54a).
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: December 29, 2015
    Assignee: Mabuchi Motor Co., Ltd.
    Inventors: Eiji Uenishi, Kazuyuki Yamamoto, Yasuhiro Yamagata, Kiyoto Itou
  • Patent number: 9091337
    Abstract: A reducer of an electric power steering apparatus is disclosed. It reduces rattle noise generated by a backlash due to friction and wear of a worm and a worm wheel or an impact transmitted from a road surface through a wheel and a steering shaft and enhances a steering feeling of a driver by improving the catching phenomenon and rotational resistance generated between a worm shaft and a worm shaft bearing.
    Type: Grant
    Filed: October 22, 2013
    Date of Patent: July 28, 2015
    Assignee: MANDO CORPORATION
    Inventors: Bong Sung Ko, Seong Yoon Kim, Seung Yong Pyo, Sung Jae Yoo
  • Patent number: 9066813
    Abstract: Unidirectional dynamic interbody fusion devices and methods of use for insertion into a patient in order to maintain a space between two vertebral bodies. A first interbody fusion device including a body member, at least one side member, and a means for moving the at least one side member relative to the central body member. A second interbody fusion device including a base member, a top member, and a means for moving the top member relative to the base member. A surgical method for maintaining a space between two vertebral bodies in a spine, including obtaining a medical device, inserting and coupling an expansion tool into an opening within the medical device, slidingly inserting the medical device into a space between two vertebral bodies; and rotating the expansion tool to move the at least one side member in a direction relative to the body member.
    Type: Grant
    Filed: June 4, 2012
    Date of Patent: June 30, 2015
    Assignee: Biomet Spine, LLC
    Inventors: Jeffrey A. Farris, Daniel Refai, Brian G. Emerick, Ross R. Nichols
  • Publication number: 20150144416
    Abstract: The invention relates to a superposition drive for a superimposed steering system of a motor vehicle, with a drive shaft and a drive gear cooperating with the drive shaft, wherein the drive shaft is pivotally mounted with respect to the drive gear. A lever element pivotally mounted with respect to the drive gear, which is designed and arranged such that pivoting of the lever element entails pivoting of the drive shaft or vice versa pivoting of the drive shaft entails pivoting of the lever element, is provided.
    Type: Application
    Filed: June 20, 2013
    Publication date: May 28, 2015
    Inventor: Thomas Marotzke
  • Patent number: 9021903
    Abstract: A linear actuator has a housing, a piston slideable within the housing along a slide axis, a first shaft rotatable about a first axis substantially perpendicular to the slide axis, a second shaft rotatable about a second axis parallel to the slide axis, in which the second shaft and the piston are engaged to convert rotational motion of the second shaft into linear motion of the piston, and in which the first shaft and the second shaft are engaged by a ball-worm gear.
    Type: Grant
    Filed: January 24, 2011
    Date of Patent: May 5, 2015
    Assignee: Airbus Operations Limited
    Inventors: Nicholas Elliott, Arnaud Didey
  • Patent number: 9003912
    Abstract: Reduction gear units are provided comprising a gearbox, a cam assembly, a bearing assembly, a first gear and a second gear. The first and second gears may engage one another and translate rotating movement from one axis to an axis perpendicular thereto. The second gear is disengagable from the first gear by action of the cam assembly, which is adapted to disengage the second gear from the first gear through eccentric rotation of the cam assembly. In one embodiment, a bearing assembly carried by the cam assembly is preloaded. The cam assembly is disposed so that the preloaded can be maintained during manufacture of the gearbox. In another embodiment, the gearbox case and cam assembly are disposed so as to minimize internal leakage from the case and enhance sealing of the gearbox.
    Type: Grant
    Filed: May 1, 2009
    Date of Patent: April 14, 2015
    Assignee: Omni USA, Inc.
    Inventors: Jeffrey K. Daniel, Bradford Newcomb
  • Patent number: 8984980
    Abstract: A gear motor assembly includes a casing having a through hole, a motor fixed to the casing, an output shaft, a gear fixed to the output shaft and driven by the motor, and a substantially tubular bearing fixed in the through hole of the casing. The gear has a shaft portion that is sleeved in the bearing. A slot is formed in the inner surface of the bearing and/or the outer surface of the shaft portion and is filled with lubricant.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: March 24, 2015
    Assignee: Johnson Electric S.A.
    Inventors: Wing Cheung Lam, Qiang Xu, Marlou Tampus Malabo
  • Patent number: 8978502
    Abstract: The invention relates to a transmission drive unit (10; 40; 50; 70) having an adapter element made of plastic (22; 22a; 53; 73) via which a torque is initiated by an input element (29) and a drive element (12; 12a; 51; 72) made of metal for forwarding the torque, wherein the adapter element (22; 22a; 53; 73) and the drive element (12; 12a; 51; 72) are directly coupled to one another and rigidly connected, wherein the adapter element (22; 22a; 53; 73) is an injection molded part which is formed by at least partial overmolding of the drive element (12; 12a; 51; 72) and wherein the drive element (12; 12a; 51; 72) serves as a bearing element.
    Type: Grant
    Filed: September 21, 2010
    Date of Patent: March 17, 2015
    Assignee: Robert Bosch GmbH
    Inventors: Susanne Albrecht, Frank Braunegger, Robert Heitz, Peter Steuer, Siegfried Reichmann
  • Publication number: 20150059506
    Abstract: The present invention relates to a reducer of an electric power steering apparatus. According to the exemplary embodiments of the present invention, a damping member is provided on an outer circumference surface of a bearing bush so that impact between a worm shaft bearing and a bearing bush can be dampened, and noise generated at the time of impact can be reduced.
    Type: Application
    Filed: June 18, 2014
    Publication date: March 5, 2015
    Inventor: Hyun Bi KWON
  • Patent number: 8967011
    Abstract: A gear structure is configured to support vertical motion of an electric pop-up monitor. More specifically, a double rack gear structure is configured to support a pop-up monitor. The rack gear structure includes an outer gear and an inner gear. The outer gear is coupled at a side of the monitor frame to operate integrally with the monitor frame, and enables the vertical motion of the monitor frame with an ascending or descending motion. The inner gear is received inside the outer gear. The inner gear performs an ascending or descending motion simultaneously with the outer gear, and supports forward and rearward or right and left shaking, which occurs in the outer gear, by maximizing a portion overlapping with the outer gear when the outer gear has ascended to the maximum.
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: March 3, 2015
    Assignee: Hyundai Mobis Co., Ltd.
    Inventors: Joung Hoon Lee, Wan Woo Lee
  • Publication number: 20150040707
    Abstract: Disclosed is a reducer of a vehicle. Size and weight of the reducer can be reduced by removing a pivot bearing and a damping coupler which are expensive and used for supporting a movement of a worm shaft and for buffering an impact applied to the worm shaft in a conventional reducer, thereby saving a manufacturing cost.
    Type: Application
    Filed: June 17, 2014
    Publication date: February 12, 2015
    Inventor: Kwang Seok HONG
  • Publication number: 20150040359
    Abstract: A tensioning assembly comprising a worm gear having a core and a thread design formed on the core, wherein the core has a catenoidal shape, is disclosed herein.
    Type: Application
    Filed: August 10, 2013
    Publication date: February 12, 2015
    Applicant: USA Products Group Inc.
    Inventor: Raymond S. Brown
  • Patent number: 8950279
    Abstract: A linear actuator includes a motor, a movable unit, and a stroke control unit. The motor includes a spindle. The movable unit includes a worm gear and a rotary shaft. The worm is provided with annular spiral or helix teeth. The stroke control unit includes at least one transmission member and at least one micro switch. The at least one transmission member is engaged with and driven by the spiral or the helix teeth of the movable unit for synchronical rotation to activating or deactivating the micro switch. In this way, the linear actuator is simplified in structure and reduced in volume.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: February 10, 2015
    Assignee: JUF Motor Co., Ltd.
    Inventors: Chih-Hung Cheng, Wei-Ming Huang
  • Patent number: 8950280
    Abstract: The wear-compensation device for a gear comprises a fixed support capable of being fixed axially on an external element in order to keep the device on the said external element, a bearing designed to be mounted on a shaft comprising one of the wheels of the gear, an eccentric mounted on the bearing and designed to be in contact with the external element, the said eccentric being able to move angularly relative to the fixed support. The device also comprises a torsion spring mounted axially between the fixed support and the eccentric and capable of exerting a circumferential preload force on the said eccentric, the said spring comprising a first end mounted inside a recess of the eccentric and a second end interacting with the fixed support.
    Type: Grant
    Filed: March 8, 2012
    Date of Patent: February 10, 2015
    Assignee: Aktiebolaget SKF
    Inventors: Romuald Lescorail, Carole Girardin, Daniel Jansen
  • Patent number: 8950281
    Abstract: A worm-gear assembly including a worm screw having at least one groove and a wheel having a plurality of rotatable pins along its periphery for engaging the worm screw. The pins are able to rotate in a direction other than a direction of wheel rotation. At least one raceway is provided for contacting pins that are not engaged with the worm screw during operation of the assembly.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: February 10, 2015
    Assignee: SpinControl Gearing LLC
    Inventors: Eric D. Carrier, David O. Carrier