Including One-way Clutch Or Brake Patents (Class 475/312)
  • Patent number: 10612628
    Abstract: A two-stage transmission for an electric vehicle of the present invention comprises: a gearbox unit; a driving unit for providing power into the gearbox unit; a sun gear unit embedded in the gearbox unit and rotated by being axially connected to the driving unit, a planetary gear unit embedded in the gearbox unit, and provided in engagement with an outer side part of the sun gear unit; a carrier unit embedded in the gearbox unit and rotatably supporting the planetary gear unit; a ring gear unit embedded in the gearbox unit, and provided on the outer side of the carrier unit and engaged with the planetary gear unit; a first synchro unit axially connected to the driving unit so as to rotate together with the sun gear unit, and selectively connected to the carrier unit so as to adjust variable speeds; and a second synchro unit mounted in the gearbox unit, and selectively coupled to the ring gear unit so as to adjust variable speeds.
    Type: Grant
    Filed: March 14, 2017
    Date of Patent: April 7, 2020
    Assignee: KOREA AUTOMOTIVE TECHNOLOGY INSTITUTE
    Inventors: Se Il Song, Chulwoo Moon
  • Patent number: 10041570
    Abstract: A first planetary gear and a clutch are placed between a second carrier of a second planetary gear and an output shaft in the axial direction. A transmission case has a small diameter tubular portion that rotatably supports an output shaft, an annular wall portion extended radially outward from the small diameter tubular portion, and a large diameter tubular portion extended in the axial direction from the outer periphery of the annular wall portion such that the first planetary gear and the clutch are partially surrounded. A mount is fixed to a vehicle body of a vehicle so as to at least partially overlap the small diameter tubular portion, the annular wall portion, and the large diameter tubular portion as viewed in the radial direction. A parking gear of a parking lock device is coupled to the outer periphery of the second carrier.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: August 7, 2018
    Assignee: AISIN AW CO., LTD.
    Inventors: Mikio Iwase, Minoru Todo, Hiroshi Yoshikawa, Naoya Jinnai, Natsuki Sada, Takuya Nakajima
  • Patent number: 9234565
    Abstract: A two-speed transmission is provided. The transmission comprises a planetary gear train (8) having a sun gear, a fixed annular gear (8b), at least one planet gear (8c) and a planet carrier (8d). A dual clutch (10) is disposed between the planetary gear train and a prime mover which outputs rotational movement. The dual clutch is configured to be driven into a first clutching mode in which it kinematically couples the sun gear with the prime mover, and a second clutching mode in which it kinematically couples the planet carrier with the prime mover. And an actuator is configured to selectively drive the dual clutch into one of its first and second clutching modes. An electric vehicle comprises the two-speed transmission.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: January 12, 2016
    Assignee: Robert Bosch GmbH
    Inventors: MingLiang Zhang, Futang Zhu, Jie Shu, Chengliang Yin
  • Patent number: 9115791
    Abstract: A shifting apparatus for an electric vehicle includes: a sun gear freely rotated on a motor driving shaft of the electric vehicle; a brake device fixed to a transmission housing and fixing the sun gear at the time of being driven; a carrier fixed to the motor driving shaft and moving a planetary gear along the sun gear; a ring gear rotated by the movement of the planetary gear while enclosing the planetary gear; an output gear connected to the ring gear and connected to the motor driving shaft by a one-way clutch; and a controlling part having a first speed mode and a second speed mode and transferring driving force directly to the output gear through the one-way clutch at the time of the first speed mode and driving the brake device at the time of a change to the second speed mode to fix the sun gear.
    Type: Grant
    Filed: April 2, 2014
    Date of Patent: August 25, 2015
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Jong Yun Park, Soon Ki Eo, Min Wook Lee
  • Patent number: 8992361
    Abstract: A planetary gear (1, 20, 30, 40) for variable transmission, particularly a planetary gear for variable transmission towards a tail rotor of a helicopter. At least one gear set (s1, s2, s3, s4) of a sun gear (w4, w6, 21) comprises a ring gear (w1, w7), planetary wheels (2, 22, 32) and a planet carrier (w2, w3, w8). At least one clutch (k, K1, K2) and at least one freewheel (Fl, FL1, FL2) are provided for at least two different speeds of the planet carrier (w2, w3, w8) as output.
    Type: Grant
    Filed: October 10, 2012
    Date of Patent: March 31, 2015
    Assignee: Airbus Helicopters Deutschland GmbH
    Inventors: Andreas Doleschel, Martin Weidenthaler, Christian Wirth, Franz Kurth, Bernd-Robert Hohn
  • Patent number: 8834314
    Abstract: A regenerative brake device for a vehicle includes an output shaft (14) of a combustion engine (4), an input shaft (27) of a gearbox (8), an electrical machine (6) having a stator (24) and a rotor (26), and a planetary gear (10) which comprises a sunwheel (18), a ring gear (20) and a planet wheel carrier (22). The engine output shaft (14) is disconnectably connectable to the planetary gear (10) by a movable piston (16) which in a first position connects the engine output shaft (14) to the planetary gear (10) and in a second position disconnects the gearbox input shaft from the planetary gear. Also a method for regenerative braking of a vehicle (1) for such a regenerative brake device (2) is disclosed.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: September 16, 2014
    Assignee: Scania CV AB
    Inventor: Mikael Bergquist
  • Patent number: 8814745
    Abstract: The brake system includes a sun gear fixedly mounted to an input shaft. The sun gear is mounted inside a planetary chassis between two pinion gears. The sun gear has teeth protruding from its circumference on both sides thereof. The teeth are aligned in such a way that when the sun gear is turned to a neutral position, the teeth are engaged with the pinion gears, preventing a rotation of the pinion gears, and when the sun gear is rotated away from the neutral position, the teeth are disengaged from the pinion gears allowing the pinion gears to rotate. When no torque is applied to the input shaft, the sun gear is urged back to its neutral position. In a second embodiment, the sun gear is urged in a drag mode against the trailing side of the teeth on the pinion gears, for producing a pawl-and-latch noise during use.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: August 26, 2014
    Inventor: Brian Lundrigan
  • Publication number: 20130200626
    Abstract: A wave energy converter includes a buoy and a power takeoff. A driveshaft in the power takeoff is driven to rotate by movements of the buoy and is mechanically coupled to an electric generator through a planetary gearbox and drives it for generating electric current at an even level, while storing excess energy in an energy accumulation device. The energy accumulation device is coupled to the generator through another part of the planetary gearbox for driving the generator during the other of the rising and sinking movements with continued torque, rotation speed and rotational direction. Major portions of the driveshaft can be located at a radial distance of the generator, allowing the generator and also components coupling the rotation of the portions of the driveshaft to the generator to be located in a sealed space, the only bearings that have to be sealed to the water being those that support said portions of the driveshaft.
    Type: Application
    Filed: April 7, 2011
    Publication date: August 8, 2013
    Applicant: OCEAN HARVESTING TECHNOLOGIES AB
    Inventors: Mikael Sidenmark, Torbjorn Andersson, Svante Logeke
  • Patent number: 8500590
    Abstract: An automotive accessory drive system for a motor vehicle connects to an internal combustion engine crankshaft during at least one mode of operation. The system includes an accessory drive pulley, a starter motor/generator, and an endless loop power transmission member connecting at least the starter motor/generator and the accessory drive pulley. A planetary gear set includes a sun gear, a ring gear integrally associated with the accessory drive pulley, and a planetary carrier connected to the engine crankshaft. First and second one way clutches connect the engine crankshaft to the ring gear, and the sun gear to a grounding member, respectively, to define a normal drive mode and an engine start mode, respectively. An electromagnetic disconnect includes a normally closed friction clutch connecting the grounding member to ground to define a third mode of operation corresponding to a free wheel function with the grounding member disengaged from connection to ground.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: August 6, 2013
    Assignee: BorgWarner, Inc.
    Inventor: Dan Joseph Showalter
  • Patent number: 8439792
    Abstract: A planetary gear mechanism for a bicycle, and more particularly to a planetary gear mechanism comprising a first planetary mechanism connected coaxially in series to a second planetary mechanism, which second planetary mechanism is connected coaxially in series to a third planetary mechanism, the second planetary mechanism output is a step up in speed from the first planetary mechanism output, the third planetary mechanism output is a step up in speed from the second planetary mechanism output.
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: May 14, 2013
    Assignee: The Gates Corporation
    Inventors: Alexander Serkh, Dean Schneider
  • Patent number: 8425373
    Abstract: An outboard motor includes an engine that generates power and a transmission device arranged to change the speed of rotation of the engine and to transmit the rotation to a propeller. The transmission device includes a planetary gear type transmission mechanism arranged to shift to any of a plurality of speed positions, and the planetary gear type transmission mechanism is controlled to shift such that a sun gear and planetary gears unitarily rotate when a speed position is a normally used speed position. The outboard motor achieves a reduction in load normally caused by engagements between gears in a normally used speed position and also achieves significant improvement in durability of the gears.
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: April 23, 2013
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yoshihiko Okabe, Daisuke Nakamura, Hirotoshi Yamauchi
  • Patent number: 8376899
    Abstract: A rotary actuator comprises a planetary gear assembly having a sun gear, a drive input, and a drive transmission whereby rotary device is transmitted between the drive input and the sun gear. The drive transmission incorporates a brake operable to apply a braking load to the sun gear in the event that the torque applied to the drive transmission in at least a first rotary direction exceeds a predetermined level.
    Type: Grant
    Filed: July 21, 2010
    Date of Patent: February 19, 2013
    Assignee: Goodrich Actuation Systems Limited
    Inventor: Stephen Harlow Davies
  • Patent number: 8371984
    Abstract: A transmission is provided having a stationary member, an input member, an output member, four planetary gear sets, a plurality of coupling members and five torque transmitting devices. Each of the planetary gear sets includes first, second and third members. The five torque transmitting mechanisms are selectively engageable to interconnect one of the first, second, and third members with another of the first, second, third members, and a stationary element. The torque transmitting mechanisms are selectively engageable in combinations of at least three to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. A first of the five torque-transmitting mechanisms is a selectable one-way clutch engageable to interconnect the third member of the fourth planetary gear set with the stationary member.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: February 12, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Larry D. Diemer, Farzad Samie, Chunhao J. Lee, David W. Wright
  • Patent number: 8357069
    Abstract: A transmission is disclosed having an input member, an output member, and first, second, third and fourth planetary gear sets each having first, second and third members. A plurality of interconnecting members continuously interconnect one of the first, second and third members of one of the planetary gear sets with one of the first, second and third members of another of the planetary gear sets. Five torque-transmitting mechanisms are selectively engageable in combinations of at least three to establish at least eight forward speed ratios and at least one reverse speed ratio between the input member and the output member. The first of the five torque-transmitting mechanisms is a selectable one-way clutch engageable to interconnect the third member of the first planetary gear set with the stationary member.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: January 22, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Larry D. Diemer, Farzad Samie, David W. Wright, Chunhao J. Lee
  • Publication number: 20120231922
    Abstract: The present invention relates to a manual wheelchair wheel, and in particular, to a manual wheelchair wheel with a built-in geared hub through which the speed of a forward or reverse driving force is shifted and said driving force is transferred, and which has an anti-reverse function, wherein the wheel is light and can easily replace existing wheelchair wheels.
    Type: Application
    Filed: November 17, 2009
    Publication date: September 13, 2012
    Inventor: Donghwan Byun
  • Patent number: 8246402
    Abstract: An outboard motor includes an engine that generates power and a transmission device arranged to change the speed of rotation of the engine and to transmit the rotation to a propeller. The transmission device includes a planetary gear type transmission mechanism arranged to shift to any of a plurality of speed positions, and the planetary gear type transmission mechanism is controlled to shift such that a sun gear and planetary gears unitarily rotate when a speed position is a normally used speed position. The outboard motor achieves a reduction in load normally caused by engagements between gears in a normally used speed position and also achieves significant improvement in durability of the gears.
    Type: Grant
    Filed: February 4, 2009
    Date of Patent: August 21, 2012
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yoshihiko Okabe, Daisuke Nakamura
  • Patent number: 8157694
    Abstract: In an outboard motor having a power transmission mechanism for transmitting power of an engine to a propeller, the power transmission mechanism has a transmission ratio changing unit having a planetary gear train including a sun gear, planetary gears, and an internal gear. The internal gear is connected to an input side shaft on the engine side. The planetary gears are connected to an output side shaft on the propeller side. The sun gear is connected to a stationary portion via a one-way clutch. The planetary gears and the internal gear and/or the sun gear are connected by an on-off clutch. When the on-off clutch is disengaged, the one-way clutch is engaged and the speed from the input side shaft is outputted from the output side shaft with a reduced speed. When the on-off clutch is engaged, the speed from the input side shaft is outputted from the output side shaft with the same speed.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: April 17, 2012
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Daisuke Nakamura, Yoshihiko Okabe
  • Patent number: 8033945
    Abstract: An enclosed bicycle drivetrain is provided that produces a range of drive ratios suitable for any riding purpose. The enclosure of substantially the entire drivetrain is made practical by the synergistic cooperation of a planetary drive system using a single chain ring and a streamlined rear derailleur system that separates the tensioning and chain guiding functions of a conventional rear derailleur, allowing the rear derailleur components to remain substantially within the shadow of the outer perimeter of the bicycle frame. The planetary drive system is provided with a unique compound pawl that may be easily disengaged from a planetary ratchet member under full riding loads by the application of a small force to destabilize the pawl. A unique shift buffer mechanism cooperates with the rear derailleur system to buffer and store up to the full range of available shift commands.
    Type: Grant
    Filed: January 23, 2011
    Date of Patent: October 11, 2011
    Assignee: Patterson Bicycle Transmission, LLC
    Inventor: Sam Patterson
  • Patent number: 7988590
    Abstract: A pawl for controlling the rotation of a gear in a planetary gear mechanism. The pawl includes a nose and first and second pivot axes. The nose is engageable with the gear. The pawl is rotatable about the first pivot axis between a first mode permitting rotation of the gear in a first direction and a second direction and a second mode preventing rotation of the gear in the first direction. The pawl is rotatable about the second pivot axis to permit rotation of the gear in the second direction while the pawl is the second mode.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: August 2, 2011
    Assignee: SRAM, LLC
    Inventors: Brian Jordan, Christopher Shipman, Kevin Wesling
  • Patent number: 7874955
    Abstract: An enclosed bicycle drivetrain is provided that produces a range of drive ratios suitable for any riding purpose. The enclosure of substantially the entire drivetrain is made practical by the synergistic cooperation of a planetary drive system using a single chain ring and a streamlined rear derailleur system that separates the tensioning and chain guiding functions of a conventional rear derailleur, allowing the rear derailleur components to remain substantially within the shadow of the outer perimeter of the bicycle frame. The planetary drive system is provided with a unique compound pawl that may be easily disengaged from a planetary ratchet member under full riding loads by the application of a small force to destabilize the pawl. A unique shift buffer mechanism cooperates with the rear derailleur system to buffer and store up to the full range of available shift commands.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: January 25, 2011
    Assignee: Patterson Bicycle Transmission, LLC
    Inventor: Sam Harwell Patterson
  • Patent number: 7704183
    Abstract: An outboard motor includes a drive shaft including a pinion gear arranged at one end of the drive shaft, a first driven gear engaged with the pinion gear, a second driven gear engaged with the pinion gear, a first propeller shaft connected to a second propeller, a second propeller shaft connected to a first propeller, and a shift change mechanism arranged to selectively engage the first driven gear with the second propeller shaft, and to selectively engage the second driven gear with the first propeller shaft and with the second propeller shaft.
    Type: Grant
    Filed: May 28, 2008
    Date of Patent: April 27, 2010
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Daisuke Nakamura, Yoshihiko Okabe
  • Publication number: 20090131214
    Abstract: A hub transmission for a bicycle comprises a hub axle; a driver rotatably supported to the hub axle; a hub shell rotatably supported to the hub axle; a power transmitting mechanism disposed between the driver and the hub shell for communicating rotational power from the driver to the hub shell through a plurality of power transmission paths; a shift mechanism for selecting the plurality of power transmission paths; a shift assist mechanism for communicating rotational power from the driver to the shift mechanism; and a power control mechanism disposed between the driver and the shift assist mechanism and coupling rotational power from the driver to the shift assist mechanism for communicating non-constant rotational power from the driver to the shift assist mechanism.
    Type: Application
    Filed: November 20, 2007
    Publication date: May 21, 2009
    Applicant: SHIMANO, INC.
    Inventors: Hiroyuki Okoochi, Tetsuya Hino
  • Patent number: 7503866
    Abstract: A drive axle assembly includes a pair of axelshafts connected to a pair of wheels and a drive mechanism for selectively coupling a driven input shaft to one or both of the axelshafts. The drive mechanism includes first and second drive units that can be selectively engaged to control the magnitude of the drive torque transferred and the relative rotary speed between the input shaft and the axleshafts. Each drive unit includes a planetary gearset disposed between the input shaft and its corresponding axleshaft, a bi-directional overrunning clutch and a mode clutch that may be activated to cause the planetary gearset to establish different speed ratio drive connections between the input shaft and the axleshaft. A control system including an electronic control unit (ECU) and sensors are provided to control actuation of the mode clutches so as to control the side-to-side traction characteristics of the drive axle assembly.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: March 17, 2009
    Assignee: Magna Powertrain USA, Inc.
    Inventors: Dumitru Puiu, Malcolm E. Kirkwood
  • Patent number: 7485066
    Abstract: The present invention is a device for transferring power flow from a multidisplacement engine to a transmission. The device includes an enclosed housing having a first shell on the engine side, a second shell on the transmission side, with the housing at least partially filled with oil and connected to an external oil pump. The device also includes a planetary gear set comprising an outer ring gear, a set of intermediate planet gears contained within a planet carrier, and a sun gear attached to a stator, a first clutch pack connecting the housing and the ring gear when engaged, a piston means designed to engage the first clutch pack, and a second clutch pack which connects the ring gear with the sun gear when engaged. A preloaded diaphragm spring connects the second clutch pack with the ring gear. First and second damper spring assemblies are also disclosed.
    Type: Grant
    Filed: July 27, 2006
    Date of Patent: February 3, 2009
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventors: George Bailey, Michael Davis, Philip George, Jeffrey Hemphill, Patrick Lindemann, David Smith, Michael G. Swank
  • Patent number: 7445223
    Abstract: The present invention relates to a bicycle drive unit that moves forward and backward and idles upon clockwise and counterclockwise pedaling, comprising: a drive shaft having one end located in an inner bearings of an internal bearing housing integrally formed with a rotary plate and the other end fixed to a clockwise one-way clutch and the inner wheel of a counterclockwise one-way clutch by means of a sunk key; a counterclockwise one-way clutch having a central gear press-fitted on its outer wheel; a ring gear engaged with the turnabout gear; a gear flange connected to a ring gear by means of a locking screw; a bearing housing of a dual structure consisting of an outer bearing housing having outer bearings; a brace attached to the outer circumference of the outer bearing housing by means of the locking screw; a detent pin unit for curving the internal bearing housing and the rotary plate; and a bicycle backward movement control unit having a hand lever and a detent latch.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: November 4, 2008
    Inventor: Jae Ho Hong
  • Patent number: 7370873
    Abstract: The present invention relates to a bicycle drive unit of multiple pedaling modes, comprising a drive shaft on one side having a counterclockwise one-way clutch and a clockwise one-way clutch coupled thereto by means of sunk keys and the drive shaft is engaged with a ring gear having an outer circumference attached to a chain sprocket; a plurality of hollow turnabout gears engaged with the central gear of the drive shaft; a drive shaft on the other side having one side rotatably inserted into an inner bearing housing that is integrally formed with the rotary plate and the other side coupled to the inner wheels of the clockwise one-way clutch and the counterclockwise one-way clutch by means of the sunk keys and a plurality of turnabout gears, a two-way turnabout gear and a hollow turnabout gear.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: May 13, 2008
    Inventor: Jae Ho Hong
  • Patent number: 7361113
    Abstract: A drive axle assembly includes a pair of axleshafts connected to a pair of wheels and a drive mechanism for selectively coupling a driven input shaft to one or both of the axleshafts. The drive mechanism includes first and second drive units that can be selectively engaged to control the magnitude of the drive torque transferred and the relative rotary speed between the input shaft and the axleshafts. Each drive unit includes a planetary gearset disposed between the input shaft and its corresponding axleshaft, a bi-directional overrunning clutch and a mode clutch that may be activated to cause the planetary gearset to establish different speed ratio drive connections between the input shaft and the axleshaft. A control system including an electronic control unit (ECU) and sensors are provided to control actuation of the mode clutches so as to control the side-to-side traction characteristics of the drive axle assembly.
    Type: Grant
    Filed: December 12, 2005
    Date of Patent: April 22, 2008
    Assignee: Magna Powertrain USA, Inc.
    Inventors: Dumitru Puiu, Malcolm E. Kirkwood
  • Patent number: 7316628
    Abstract: A two speed transmission comprising a planetary gear train comprising an input member connected to an input carrier, the input carrier connected to an input shaft, a sun gear and a ring gear, the input carrier comprising a plurality of planetary members each in meshing engagement with the sun gear and the ring gear, the sun gear connected to a brake member, the ring gear connected to an output member, and a one-way clutch operably disposed between the input shaft and the output member.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: January 8, 2008
    Assignee: The Gates Corporation IP Law Dept.
    Inventor: Alexander Serkh
  • Patent number: 7204781
    Abstract: A transmission apparatus includes at least an auxiliary transmission for supplementing a main transmission. The auxiliary transmission includes a damper which has a damper characteristic adapted to a low speed select state of the auxiliary transmission, and which is disposed in a low speed transmission path used for transmission of torque in the low speed select state of the auxiliary transmission. The auxiliary transmission further comprises a bypass member defining a bypass transmission path bypassing the low speed damper. The bypass transmission path is a torque path used for transmission of torque in a high speed select state of the auxiliary transmission.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: April 17, 2007
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Ryozo Hiraku, Shin Kobayashi
  • Patent number: 7090608
    Abstract: A wheel transmission for a heavy construction vehicle, which can be applied to specially-equipped vehicles as well as heavy construction vehicles such as a forklift truck and a mechanical shovel. The wheel transmission (200) is intended to drive a pair of right and left wheels independently, and includes a planetary gear assembly (210), a change clutch part (230), a one-way clutch part (300), and a brake part (270) housed in an axle hub at which opposite ends of a drive axle shaft are located, turning force from an engine of a heavy construction vehicle being transferred to the drive axle shaft through a torque converter, a driving shaft, a final reduction gear and a differential gear.
    Type: Grant
    Filed: December 14, 2001
    Date of Patent: August 15, 2006
    Assignee: Wooyoung Hydraulics Co., Ltd.
    Inventor: Seung-Woo Han
  • Patent number: 6849024
    Abstract: A starting clutch includes a planetary mechanism; a first clutch for outputting a torque to an outer diameter portion of the planetary mechanism; a second clutch for outputting the torque to an intermediate portion of the planetary mechanism; and a lock mechanism for locking a reactive force from an inner diameter portion of the planetary mechanism.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: February 1, 2005
    Assignees: NSK Ltd., NSK-Warner K.K.
    Inventors: Yoshitaka Hayashi, Hiroshi Fukushima, Takao Obara, Minao Umeda, Keeichi Minagi, Masao Shoji, Yoshio Kinoshita, Shiro Takeuchi, Tadashi Watanabe, Hirofumi Nakagomi, Tatsuro Miyoshi, Shigeharu Nishimura, Hiroshi Yabe, Nobuhiro Horiuchi
  • Patent number: 6605017
    Abstract: The present invention is directed to a continuously variable transmission system that includes an asymmetric differential spliter, a collecting planet carrier assembly and steering shaft with continuously variable brake mechanism to translate torque from an input shaft to an output shaft.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: August 12, 2003
    Inventor: Elmir Comic
  • Patent number: 6508738
    Abstract: In a transmission which transmits a power from an electrical motor 1 to a countershaft 30 with a speed change, a drive side rotating member which is coupled to a main shaft 10 experiences a rotational change along with the main shaft 10 when a shift from a first speed ratio to a second speed ratio is executed, and an intermediate rotating member experiences a rotational change in a direction opposite to that of the drive side rotating member when the shift is executed. In this transmission, the ratio of the rotational inertia of the drive side rotating member to the rotational inertia of the intermediate rotating member equals the reciprocal of the ratio of the rotational change of the drive source to the rotational change of the intermediate rotating member, the rotational changes being experienced during the shift.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: January 21, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Yasuo Kima
  • Patent number: 6481551
    Abstract: A planar inertia-actuated overrunning coupling assembly having a pocket plate and a notch plate mounted on a common rotary axis with planar juxtaposed coupling surfaces. A pocket plate having a plurality of angularly spaced pockets that receive adjustable clutch elements, the notch plate having angularly spaced notches, a clutch element being mounted in each pocket for pivotal movement about one edge thereof, an inertia-actuated ball in each pocket adjacent a clutch element, the pocket being formed with a ramp surface engageable with the inertiaactuated ball whereby the clutch element is shifted into locking engagement with the pocket plate in response to an inertia force acting on the actuator balls whereby torque is transmitted from one plate to the other in one direction of relative rotation of the plates, and wherein the clutch elements move out of registry with the pocket plate upon a reversal in the direction of relative rotation of the plates.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: November 19, 2002
    Assignee: Means Industries, Inc.
    Inventor: Stephen M. Ruth
  • Publication number: 20020086766
    Abstract: A starting clutch includes a planetary mechanism; a first clutch for outputting a torque to an outer diameter portion of the planetary mechanism; a second clutch for outputting the torque to an intermediate portion of the planetary mechanism; and a lock mechanism for locking a reactive force from an inner diameter portion of the planetary mechanism.
    Type: Application
    Filed: November 5, 2001
    Publication date: July 4, 2002
    Applicant: NSK Ltd.
    Inventors: Yoshitaka Hayashi, Hiroshi Fukushima, Takao Obara, Minao Umeda, Keeichi Minagi, Masao Shoji, Yoshio Kinoshita, Shiro Takeuchi, Tadashi Watanabe, Hirofumi Nakagomi, Tatsuro Miyoshi, Shigeharu Nishimura, Hiroshi Yabe, Nobuhiro Horiuchi
  • Publication number: 20020010050
    Abstract: In a transmission which transmits a power from an electrical motor 1 to a countershaft 30 with a speed change, a drive side rotating member which is coupled to a main shaft 10 experiences a rotational change along with the main shaft 10 when a shift from a first speed ratio to a second speed ratio is executed, and an intermediate rotating member experiences a rotational change in a direction opposite to that of the drive side rotating member when the shift is executed. In this transmission, the ratio of the rotational inertia of the drive side rotating member to the rotational inertia of the intermediate rotating member equals the reciprocal of the ratio of the rotational change of the drive source to the rotational change of the intermediate rotating member, the rotational changes being experienced during the shift.
    Type: Application
    Filed: July 12, 2001
    Publication date: January 24, 2002
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Yasuo Kima
  • Publication number: 20010019982
    Abstract: An apparatus for changing speed of bicycles, more particularly, an apparatus for changing speed of bicycles that changes speed of bicycles using inner gears inside a rear wheel hub and controlling the inner gears with controllers mounted on a hub shaft.
    Type: Application
    Filed: December 13, 2000
    Publication date: September 6, 2001
    Inventor: Moon-Soo Yoo
  • Patent number: 6149543
    Abstract: A transmission compounder assembly having a one-way clutch between an input shaft and an output shaft to establish a direct-ratio drive path therebetween. A planetary gearset can be selectively engaged to establish a compound-ratio drive path between the shafts. The planetary gearset includes a sun gear, a ring gear fixed to the output shaft, a carrier fixed to the input shaft, and a plurality of planet gears rotatably supported from the carrier and meshed with both the ring gear and the sun gear. A band brake is provided for selectively braking the sun gear. A controllable overrunning clutch is mounted between the carrier and the sun gear and can be selectively shifted between a locked mode and a released mode. The compounder assembly further includes an actuator for controlling actuation of the band brake and the overrunning clutch.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: November 21, 2000
    Assignee: New Venture Gear, Inc.
    Inventor: Timothy W. Breen
  • Patent number: 6066065
    Abstract: A transmission compounder assembly comprising an input shaft, an output shaft and a one-way clutch operable to establish a direct-ratio drive path between the shafts. A planetary gearset can be selectively engaged to establish a compound-ratio drive path between the shafts. The planetary gearset includes a sun gear, a ring gear fixed to the output shaft, a carrier fixed to the input shaft, and a plurality of planet gears rotatably supported from the carrier and meshed with both the ring gear and the sun gear. A band brake is provided for selectively braking the sun gear. A clutch pack is mounted between the carrier and the sun gear and can be selectively actuated to prevent relative rotation therebetween. The compounder assembly further includes a brake actuator for controlling actuation of the band brake and a clutch actuator for controlling actuation of the clutch pack.
    Type: Grant
    Filed: May 4, 1999
    Date of Patent: May 23, 2000
    Assignee: New Venture Gear, Inc.
    Inventor: Timothy W. Breen
  • Patent number: 6048287
    Abstract: The invention relates to a multispeed gearshift mechanism for bicycles.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: April 11, 2000
    Inventor: Bernhard Rohloff
  • Patent number: 6027424
    Abstract: A short boat motor transmission is presented that is less than five inches wide. The main parts of the transmission includes a high clutch drum which contains a Belleville spring, an input ring gear and clutch plates secured at the top by a pressure containment ring and snap-ring. The input ring gear is connected directly to the motor. This ring gear is also connected to a pinion carrier and four pinion planetary gears. The output shaft of the transmission is attached to the pinion carrier. The planetary gears in the pinion carrier are connected to the inner teeth of the input ring gear and to a sun gear. The outer part of the pinion carrier may also be mechanically connected in locked position to the input ring gear by clutch plates. The sun gear is connected to a one-way locking mechanism which only allows the gear to turn in one direction. Since all of the centers of the various parts are in alignment and since the various parts are nested the transmission is very short.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: February 22, 2000
    Inventor: Roger L. Reynolds
  • Patent number: 5607369
    Abstract: A differential motion gear system to control the output speed ratio by changing the input direction. The gear system utilizes a planetary gearset to achieve the desired results. The input shaft may be directly connected to the sungear, the differential motion gear set, or to the ring gear. One or more one-way drive mechanisms are connected between a stationary case and one or more of the planetary gearset elements and between the planetary gearset elements and the output shaft. Selective braking of the planetary gearset elements, in conjunction with the change of direction of the input shaft causes the output shaft to rotate in a single direction, but at different output speeds.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: March 4, 1997
    Inventor: Tai-Her Yang
  • Patent number: 5562563
    Abstract: A control system for a working apparatus such as a derailleur or self-contained change speed apparatus of a bicycle, operable by a pulling force and a restoring force. This control system comprises a first sleeve shiftable in one direction by the pulling force, and in the other direction by the restoring force; a second sleeve for transmitting a shift of the first sleeve to a controlled member of the change speed apparatus to control the controlled member, the first sleeve and the second sleeve being interlocked to be shiftable relative to each other; a clutch pawl switchable between a first position to transmit rotational drive of the bicycle to the second sleeve, and a second position to break drive transmission; and a clutch controller for switching the clutch pawl to the first position in response to a relative shift between the first sleeve and the second sleeve.
    Type: Grant
    Filed: December 13, 1994
    Date of Patent: October 8, 1996
    Assignee: Shimano, Inc.
    Inventor: Akihiko Shoge
  • Patent number: 5558592
    Abstract: An accessory drive for attachment to the end of a shaft. The drive comprises a belt pulley, a carrier with at least a first and a second planet wheel that are strongly coupled and which have differing numbers of teeth, the first planet wheel being in engagement with a first gear circulating along with the shaft, and the second planet wheel with a second gear that is rotatable relative to the shaft, an activatable and deactivatable brake being provided between a continuously stationary part and a part capable of relative rotation, and a freewheel to prevent backward relative rotation of the second gear with respect to the end of the shaft. The first and second gears are arranged radially inside the carrier, such that the freewheel is arranged between the carrier and the part capable of relative rotation and the belt pulley at least partially surrounds the freewheel, the carrier, and the brake radially and externally, and so that the belt pulley and carrier are joined in rotary engagement.
    Type: Grant
    Filed: November 18, 1994
    Date of Patent: September 24, 1996
    Assignee: Firma Carl Freudenberg
    Inventors: Herwig Honlinger, Hans-Gerd Eckel, Jurgen Eichhorn
  • Patent number: 5538482
    Abstract: In a powertrain, including a multiple-speed transmission, an axle shaft driven through differential mechanism, a two-speed axle mechanism includes an input shaft connected to the drive shaft, a multiple speed gear mechanism driveably connected to the differential mechanism. One form of the two-speed axle includes a planetary gearset, an overrunning brake, a brake band, and a friction clutch. Another form of the axle mechanism includes gears formed on the input shaft and output shaft, a planet gear wheel rotatably supported on a carrier, the gears of the wheel meshing with the gears on the shafts. A spring-applied clutch connects the output shaft to the carrier, and an hydraulically-actuated brake releases the clutch and holds the carrier against revolution on a casing.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: July 23, 1996
    Assignee: Ford Motor Company
    Inventors: John H. Tanzer, Ernie C. Besler, Rex R. Corless, Suresh C. Bansal
  • Patent number: 5518462
    Abstract: A rotary actuator for opening and closing a valve, damper or linkage for industrial application, the actuator including a housing having a motor mounted thereon for driving a speed reduction gear train to reduce the speed of the motor, the rotary motion of the output shaft of the speed reduction gearing to linear motion against the force of a biasing spring to convert the linear motion of the converting motion to rotary motion of the output shaft.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: May 21, 1996
    Assignee: Jordan Controls, Inc.
    Inventor: Robert L. Yach
  • Patent number: 5378210
    Abstract: A gear transmission apparatus comprises a planetary gear mechanism having an internal gear, a plurality of pinion gears, a pinion carrier, and a sun gear. The pinion carrier has an overhang portion extending along an outer periphery of the internal gear. A bearing or bush is provided to support the overhang portion. A band brake is provided for braking the pinion carrier when brought into frictional contact with the overhang portion. A one-way clutch is interposed between the rotation input shaft and the rotation output shaft so as to allow rotation of the rotation output shaft in a speed-increase direction. In a preferred embodiment, either the sun gear or the internal gear is braked by the band brake.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: January 3, 1995
    Assignee: Tochigi Fuji Sangyo Kabushiki Kaisha
    Inventor: Masao Teraoka
  • Patent number: 5310390
    Abstract: The input gear of the secondary gear train is mounted on a hollow input shaft and the reaction element of a planetary gear set is connected with a multi-plate brake and one-way clutch, which are disposed on the opposite side of the input gear with respect to the planetary gear set, by way of a shaft which passes through the hollow input shaft. The multi-plate brake is disposed radially outward of the one-way clutch.The output gear of the gear train is supported by bearings which are disposed on either side thereof. The bearing on the inboard side of the final gear is arranged to have a diameter which is larger than the output gear and supported in a wall portion of the transmission case per se.
    Type: Grant
    Filed: April 12, 1993
    Date of Patent: May 10, 1994
    Assignee: Jatco Corporation
    Inventor: Hirobumi Shirataki
  • Patent number: 5273500
    Abstract: A self-contained change speed apparatus for use on a bicycle having a drive member and a hub body rotatably supported on a fixed shaft, and two planetary gear mechanisms arranged on a drive transmission path extending from the drive member to the hub body. The planetary gear mechanisms include planet gears meshed with sun gears switchable through externally controllable one-way clutches between a state of free rotation relative to the fixed shaft and a state of being locked to the fixed shaft. The controls of the one-way clutches acting on the sun gears are effected by relative positional relations between projections formed on the fixed shaft and control sections formed on a control member shiftable on peripheral surfaces of the fixed shaft. Such controls of the sun gears determine an output line extending through one of the two one-way clutches.
    Type: Grant
    Filed: December 19, 1991
    Date of Patent: December 28, 1993
    Assignee: Shimano, Inc.
    Inventor: Masashi Nagano
  • Patent number: 5234389
    Abstract: A multi-directional planetary transmission mechanism adapted to establish plural torque flow paths between a driving member and a driven member including a one-way torque delivery clutch located in the torque flow path from the torque input element of the planetary gear system and a torque output shaft, and a friction brake means for anchoring the torque input element of the planetary gearing to establish a change in torque ratio wherein provision is made for disengaging the one-way clutch to interrupt torque delivery therethrough in either a driving direction or a coast direction and simultaneously anchoring said torque input element of said gearing to provide a torque reaction point.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: August 10, 1993
    Assignee: Ford Motor Company
    Inventor: Eldon L. Goates