Velocipede Free Wheel Patents (Class 192/64)
  • Patent number: 10766301
    Abstract: A rear wheel fixing mechanism for a bicycle is provided that includes an axle, a rear hub body, and a first clamp. The rear hub body is rotatably mounted around the axle about a rotational center axis. The first clamp is configured to exert a first clamping force in a perpendicular direction with respect to the rotational center axis onto a first clamping portion of the axle to mount the axle on a frame of the bicycle.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: September 8, 2020
    Assignee: SHIMANO INC.
    Inventors: Tomonari Oka, Yuuya Yoneda
  • Patent number: 10730585
    Abstract: A roller chain based drive train for a bicycle includes a sprocket assembly configured for mounting to a hub of a rear wheel of the bicycle. The sprocket assembly includes a smaller sprocket, a larger sprocket, and a plurality of pins connecting the smaller sprocket and the larger sprocket to each other. The pins are mounted in outer pin mount holes on the smaller sprocket and in the inner pin mount holes on the larger sprocket.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: August 4, 2020
    Assignee: SRAM DEUTSCHLAND GmbH
    Inventor: Henrik Braedt
  • Patent number: 10654314
    Abstract: The bicycle hub assembly includes a hub axle, a hub body, a bearing unit, a lock member, and a tool engagement member. The bearing unit is configured to rotatably support the hub body around the hub axle with respect to the rotational center axis. The bearing unit includes an outer race, an inner race and a plurality of rolling members. The lock member prevents the inner race of the bearing unit from rotating relative to the hub axle. The tool engagement member is configured to rotate the inner race of the bearing unit relative to the hub axle.
    Type: Grant
    Filed: October 7, 2016
    Date of Patent: May 19, 2020
    Assignee: SHIMANO INC.
    Inventors: Jun Nakajima, Kazuki Koshiyama
  • Patent number: 10562588
    Abstract: A bicycle cassette comprises two segments that are attached together thereby forming a composite cassette that can be attached to a rear bicycle hub driver body. The bicycle cassette allows for the use of a smaller sprocket on one segment of the cassette because the smaller sprockets can overhang the hub driver body. Specifically, the cassette allows a small 9 or 10 tooth sprocket to overhang the cassette driver body on the bicycle hub by attaching a small sprocket assembly to a larger sprocket assembly using a locking, bayonet style attachment.
    Type: Grant
    Filed: May 26, 2016
    Date of Patent: February 18, 2020
    Assignee: The Hive Global, Inc
    Inventors: Greg Thrash, Joel Peters
  • Patent number: 10520046
    Abstract: A low-backlash multimode clutch includes a one-way bearing allowing rotation in a first direction as well as a number of actuatable pawls in one race and a number of receiving slots having engagement faces in the other race. The engagement faces are tilted such that when the pawls are actuated, any torque applied in the first direction tends to force the pawls outward but the pawls are retained inward, such as by actuator rods. In this way, the one-way clutch may be selectively locked and unlocked with zero backlash against the one-way bearing.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: December 31, 2019
    Assignee: BorgWarner Inc.
    Inventors: Brett Peglowski, Calahan B. Campton, Michael W. Campbell
  • Patent number: 10486465
    Abstract: A reinforcement for a hub ratchet base comprising a chain-ring and a ratchet ring. The chain-ring is made of an aluminum material having a chain-ring socket and an assembly shaft. The ratchet ring is made of a metal material with high hardness which can be the titanium alloy material or the chrome-molybdenum steel material. The ratchet ring has an engaging slot corresponding to the assembly shaft of the chain-ring. There are at least three connecting slots disposed on the ratchet ring for accepting at least three ratchet members and at least three corresponding elastic members. Each of the connecting slots of the ratchet ring has a pivoting portion on an end for engaging with a ratchet member and an engaging portion on another end for engaging with an elastic member such that the elastic member pushes against a bottom portion of the ratchet member.
    Type: Grant
    Filed: September 20, 2017
    Date of Patent: November 26, 2019
    Assignee: CHOSEN CO., LTD.
    Inventor: Ching-Shu Chen
  • Patent number: 10451120
    Abstract: A three-way switchable clutch, including: outer and inner rings; and pawls non-rotatably connected to the outer ring. For a free-wheel mode, the inner and outer rings are rotatable with respect to each other. For first and second clutch modes, the pawls are displaceable to engage the inner ring to non-rotatably connect the inner and outer rings. For the first mode: rotation of one of the inner or outer rings is in a first circumferential directions and the one of the inner or outer rings is rotatable with respect to the other of the inner or outer ring in a second circumferential direction. For the second mode: rotation of the one of the inner or outer rings is in the second circumferential direction and the one of the inner or outer rings is rotatable with respect to the other of the inner or outer rings in the first circumferential direction.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: October 22, 2019
    Assignee: Schaeffler Technologies AG & Co. KG
    Inventor: Marion Jack Ince
  • Patent number: 10408326
    Abstract: A sprocket module for a bicycle has at least two sprockets fixedly coupled one another. At least one first sprocket of the at least two sprockets comprises engagement portion to a freewheel body of a hub for a bicycle rear wheel. A second sprocket of the module lacks the engagement portion and is supported on the freewheel body through the aforementioned at least one first sprocket. The module allows strong and low-weight sprocket assemblies to be made.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: September 10, 2019
    Assignee: CAMPAGNOLO S.R.L.
    Inventors: Giuseppe Dal Prà, Leopoldo Lazzarin
  • Patent number: 10359073
    Abstract: A wheel bearing and hub system (WBHS) that functions to facilitate a vehicle wheel hub and tire to rotate with an axle. The WBHS includes a wheel bearing assembly and a wheel hub. The bearing assembly has an outer member with inward extending slots and an inner member that is located and secured within the outer member. The inner member has an outer race, an inner race, a plurality of ball bearings and a retainer within a channel between the hub races, and a center opening. The wheel bearing assembly is inserted into the center of the wheel hub, which has a front member and a rear member. An axle is then inserted into and attached within the channel, thereby facilitating the rotation of the axle and wheel hub.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: July 23, 2019
    Inventor: Michael Schlags
  • Patent number: 10315727
    Abstract: A bicycle rear sprocket assembly is basically provided that includes a first sprocket assembly and a second sprocket assembly. The first sprocket assembly includes at least one first sprocket and a first torque transmitting profile. The second sprocket assembly includes at least one second sprocket and a second torque transmitting profile. The second torque transmitting profile is configured to engage the first torque transmitting profile to transmit torque between the first sprocket assembly and the second sprocket assembly. A threaded portion is provided to one of the first sprocket assembly and the second sprocket assembly. The threaded portion is configured to threadedly engage a bicycle rear hub assembly.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: June 11, 2019
    Assignee: Shimano Inc.
    Inventor: Naohiro Nishimoto
  • Patent number: 10293639
    Abstract: A bicycle hub assembly comprises a hub axle, a hub shell, a sprocket support body, a first ratchet member, a second ratchet member, and a sliding member. The hub shell includes at least one first tooth. The sprocket support body includes a first helical spline. The first ratchet member comprises at least one first ratchet tooth and a second helical spline engaged with the first helical spline. The second ratchet member comprises at least one second ratchet tooth and at least one second tooth. The at least one second ratchet tooth is engageable with the at least one first ratchet tooth. The at least one second tooth is engaged with the at least one first tooth. The sliding member is provided between the sprocket support body and the second ratchet member in an axial direction parallel to a rotational axis. The sliding member includes a non-metallic material.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: May 21, 2019
    Assignee: SHIMANO INC.
    Inventors: Hiroshi Fujita, Naohiro Nishimoto, Kazuki Koshiyama
  • Patent number: 10144248
    Abstract: The present invention is directed to a torque transmitting bicycle freewheel coasting mechanism comprising a drive body, a driven body and rolling bearing elements supporting and spacing these bodies during coasting. The rolling element bearings are elastically deformable and, during the application of a sufficiently large driving force to the drive body, they deform to allow relative movement between the bodies to bring one body into contact with the other body. This movement is small and the load is carried directly from one body to the other body without damage to the rolling element bearings. The bodies are only highly loaded by drive loads during torque transmission. During coasting, the flexible balls or rollers spring back and support the bodies in a spaced relationship in a normal bearing fashion. The flexible rolling bearing elements are not hard so bearing raceways can be formed directly into the bodies.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: December 4, 2018
    Inventor: William Shook
  • Patent number: 10093390
    Abstract: A multiple-sprocket arrangement for mounting on a rear wheel axle of a bicycle includes a receiving body designed for mounting on the rear wheel axle, and a sprocket assembly. The sprocket assembly includes a first sprocket, the inner diameter of which is greater than an outer diameter of the receiving body and which is connected to the receiving body. The sprocket assembly further includes at least one second sprocket, the inner diameter of which is smaller than an outer diameter of the receiving body and which is designed in an unsupported manner and connected to the receiving body in a torque-transmitting manner by means of the first sprocket. The first sprocket and the at least one second sprocket may be of a one-piece construction.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: October 9, 2018
    Assignee: SRAM DEUTSCHLAND, GMBH
    Inventors: Henrik Braedt, Matthias Reinbold
  • Patent number: 10093388
    Abstract: A first sprocket includes a first opening having a first diameter smaller than a radially outer diameter of a sprocket support portion of a bicycle rear hub assembly. A lock member includes a main body, a male thread portion, and a radial projection. The main body has a first axial end configured to pass through the first opening and a second axial end opposite to the first axial end in an axial direction. The male thread portion is provided to the first axial end and configured to engage with a female thread portion of the bicycle rear hub assembly in a state where a bicycle rear sprocket assembly is mounted to the bicycle rear hub assembly. The radial projection extends radially outwardly from the second axial end to restrict axial displacement of the first sprocket with respect to the sprocket support portion in the state.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: October 9, 2018
    Assignee: SHIMANO INC.
    Inventor: Kenji Kamada
  • Patent number: 10076930
    Abstract: A bicycle hub 1 includes a hollow cylindrical body 3 which is provided with external splines having teeth 5 extending in axial direction. Each tooth has a first axial side 7 which is loaded during use by a sprocket wheel slid onto the body and an opposite, second axial side 9. Three of the teeth are composed of two portions, that is to say a first portion 11 which forms a whole with the body and a second portion which forms an insert 13. The insert partly forms the first side 7 of the tooth. The body is provided with three axial grooves 15 which accommodate the inserts 13. The inserts 13 partly protrude above the grooves and the height 17 of the inserts is approximately equal to the width 19 of the inserts.
    Type: Grant
    Filed: June 16, 2014
    Date of Patent: September 18, 2018
    Inventor: Robertus Cornelius Wilhelmus Van Hoek
  • Patent number: 10053187
    Abstract: A bicycle rear sprocket assembly comprises a first sprocket. The first sprocket includes a first sprocket body, a plurality of first sprocket teeth, a bearing unit mounting section, and a first torque-transmitting structure. The plurality of first sprocket teeth extend radially outwardly from a first radially outer periphery of the first sprocket body with respect to a rotational center axis. The bearing unit mounting section is at least partly provided to a first radially inner periphery of the first sprocket body. The first torque-transmitting structure is configured to transmit pedaling torque to a second sprocket separately disposed adjacent to the first sprocket without another sprocket between the first sprocket and the second sprocket. The first torque-transmitting structure is provided to a first bicycle inbound facing surface and is a separate member from the second sprocket.
    Type: Grant
    Filed: July 7, 2016
    Date of Patent: August 21, 2018
    Assignee: SHIMANO INC.
    Inventor: Kenji Kamada
  • Patent number: 9868491
    Abstract: A bicycle sprocket assembly is basically provided with a first sprocket having a first pitch circle diameter, a second sprocket having a second pitch circle diameter, a third sprocket having a third pitch circle diameter, a fourth sprocket having a fourth pitch circle diameter, and a sprocket supporting member. At least one of the second and third sprockets is attached to the sprocket supporting member. The first sprocket is attached to the second sprocket so that the second sprocket is positioned between the first sprocket and the sprocket supporting member in an axial direction. The fourth sprocket is attached to the third sprocket so that the third sprocket is positioned between the sprocket supporting member and the fourth sprocket in the axial direction. The second sprocket is adjacent to the third sprocket without another sprocket positioned therebetween in the axial direction.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: January 16, 2018
    Assignee: Shimano Inc.
    Inventor: Toshinari Oishi
  • Patent number: 9772029
    Abstract: A planetary gear assembly comprising: a housing, which contains: a planetary carrier, a sun gear, at least one planetary gear, a ring gear, a coil spring; an input shaft; and an output shaft. The coil spring extends around at least a portion of the planetary carrier. The coil spring includes a first tang in communication with the ring gear and a second tang in communication with the housing. When torque is applied to the input shaft, the planetary carrier rotates within the coil spring in one or more driving directions so that torque is transferred to the output shaft. When no torque is applied to the input shaft and torque is applied to the output shaft, the coil spring constricts and provides sufficient contact force to the planetary carrier and housing to prevent the planetary carrier from moving relative to the housing in at least one of the driving directions.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: September 26, 2017
    Assignee: Akebono Brake Industry Co., Ltd.
    Inventor: Carla Thomas
  • Patent number: 9771127
    Abstract: A driver for mounting a multiple sprocket arrangement to a bicycle rear axle arrangement. The multiple sprocket arrangement includes a sprocket assembly having a plurality of sprockets with different numbers of teeth and an adapter. The rear axle arrangement includes a hub. The driver includes an input torque transmitting profile for transmitting torque from between the sprocket assembly and the driver. A positioning section positions the sprocket assembly in the radial direction. External thread threadably receives the adapter and is disposed between the input torque transmitting profile and the positioning section. An output torque transmitting arrangement transmits torque between the driver and the hub.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: September 26, 2017
    Assignee: SRAM, LLC
    Inventor: Henrik Braedt
  • Patent number: 9738349
    Abstract: A multiple sprocket arrangement mountable to a rear axle arrangement of a bicycle includes a sprocket assembly having a plurality of sprockets with different numbers of teeth. The sprocket assembly includes a splined torque transmitting section. The multiple sprocket arrangement also includes an adapter mountable to the rear axle arrangement. The adapter configured to axially secure the sprocket assembly to the rear axle arrangement with an internally threaded portion disposed along a longitudinal axis outboard of the splined torque transmission section and inboard of at least two sprockets of the plurality of sprockets.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: August 22, 2017
    Assignee: SRAM Deutschland GmbH
    Inventor: Henrik Braedt
  • Patent number: 9676233
    Abstract: A bicycle hub apparatus may include a hub body, a driving ring, a freewheel body, and a ratchet unit. A plurality of driving teeth are sequentially formed around an inner periphery of the driving ring. Since the separated distances between two adjacent driving teeth is smaller, the driving ring comprises more driving teeth, and the number thereof is up to 155 teeth. Also, the ratchet unit comprises a plurality of engaging pieces, and each of the engaging pieces has numerous engaging teeth, and the sizes thereof are corresponding to the driving teeth. As a result, the bicycle hub apparatus in the present invention improves the efficiency of engaging process between the engaging teeth and the driving teeth, and further lowers the possibility of missing step and the risk of use.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: June 13, 2017
    Assignee: CHOSEN CO. LTD.
    Inventor: Ching-Shu Chen
  • Patent number: 9662938
    Abstract: The present disclosure provides a bicycle hub that provides improved drive line efficiency and bike-to-rider torque feedback. The drive line efficiencies are due to lower rolling resistance resulting from a novel bearing and sprag clutch configuration, a lightweight design, and immediate torque transfer from the cassette drive to the hub body. The bike-to-rider feedback has been improved as the torque transfer is smooth, predictable, and immediate.
    Type: Grant
    Filed: July 14, 2015
    Date of Patent: May 30, 2017
    Assignee: Christianson Systems, Inc.
    Inventors: Jim Gerhardt, Shannon Hansen
  • Patent number: 9550547
    Abstract: An assembly of toothed wheels of a bicycle has at least two toothed wheels of different diameter and at least one support member of at least one toothed wheel of the at least two toothed wheels on a component of a bicycle, like for example a free body of a hub for a rear bicycle wheel. The at least one support member is at least partially housed in at least one cavity of at least one other toothed wheel of the at least two toothed wheels. In this way, the distance between the toothed wheels is lower than the thickness of the support member of the toothed wheels themselves. The support member can thus maintain a strong resistant section at the attachment area to the respective toothed wheel. At the same time, it is possible to mount a greater number of sprockets on a free body of standard size.
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: January 24, 2017
    Assignee: Campagnolo S.r.l.
    Inventor: Maurizio Valle
  • Patent number: 9533735
    Abstract: A multiple-sprocket arrangement for mounting on a rear wheel axle of a bicycle includes a receiving body designed for mounting on the rear wheel axle, and a sprocket assembly. The sprocket assembly includes a first sprocket, the inner diameter of which is greater than an outer diameter of the receiving body and which is connected to the receiving body. The sprocket assembly further includes at least one second sprocket, the inner diameter of which is smaller than an outer diameter of the receiving body and which is designed in an unsupported manner and connected to the receiving body in a torque-transmitting manner by means of the first sprocket.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: January 3, 2017
    Assignee: SRAM Deutschland GmbH
    Inventors: Henrik Braedt, Matthias Reinbold
  • Patent number: 9506508
    Abstract: A one-way transmission module includes two rings and at least one catch. The first ring is used for connection to a hub. The second ring is used for connection to a flywheel-bearing drum. The catch is arranged between the first and second rings to allow the first ring to rotate the second ring in a first direction but prevent the first ring from rotating the second ring in a second direction opposite to the first direction. The first or second ring includes a non-circular profile while the second or first ring includes a non-circular opening.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: November 29, 2016
    Inventor: Fu Sheng Chen
  • Patent number: 9463844
    Abstract: A bicycle sprocket having a rotational center axis comprises a sprocket body and a chain engagement structure. The sprocket body is rotatable about the rotational center axis. The chain engagement structure includes an upshifting facilitation area configured to facilitate upshifting. The chain engagement structure includes a plurality of chain-engaging teeth configured to engage with a bicycle chain. The plurality of chain-engaging teeth includes at least three upshifting facilitation teeth configured to facilitate upshifting. The at least three upshifting facilitation teeth are adjacent to each other without another tooth between the at least three upshifting facilitation teeth. The at least three upshifting facilitation teeth are provided in the upshifting facilitation area.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: October 11, 2016
    Assignee: SHIMANO INC.
    Inventor: Yasufumi Fukunaga
  • Patent number: 9290049
    Abstract: A bicycle hub assembly includes a hub shell defining a toothed drive member mounting hole and a locating groove, a locating member having a positioning portion accommodated in the locating groove of the hub shell, and a toothed drive member having a first locating portion fastened to the positioning portion of the locating member and a plurality of teeth. In an alternate form of the invention, the bicycle hub assembly includes a hub shell defining therein a toothed drive member mounting hole and a plug hole; a locating member having a positioning portion and a plug portion that is plugged into the plug hole of the hub shell, and a toothed drive member having a first locating portion fastened to the positioning portion of the locating member and a plurality of teeth formed therein.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: March 22, 2016
    Assignee: CHOSEN CO., LTD.
    Inventor: Ching-Shu Chen
  • Patent number: 9212708
    Abstract: A hub for at least partially muscle-powered vehicles having a hub axle, a hub body, a rotatable driving device, and a freewheel device. The freewheel device includes a first and a second engagement component cooperating with one another having at least one axial toothing each. The freewheel device is biased to the engaging position via a magnetic biasing device. A first magnetic device biases the first engagement component and a second magnetic device biases the second engagement component to the engaging position. At least one magnetic component comprises a carrier unit and a multitude of magnetic units disposed thereat.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: December 15, 2015
    Assignee: DT Swiss Inc.
    Inventors: Stefan Spahr, Martin Walthert
  • Patent number: 9181994
    Abstract: The invention relates to a freewheel hub for a bicycle including an axle and housing rotatably mounted thereon. A sprocket arrangement is mounted on the hub axle and a freewheel is arranged between the hub and the sprocket arrangement. The freewheel has a first coupling ring which couples to the hub and a second coupling ring which couples to the sprocket arrangement. The first and second coupling rings have respective tooth systems facing one another which are arrangeable into and out of mutual torque-transmitting engagement.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: November 10, 2015
    Assignee: SRAM Deutschland GmbH
    Inventor: Henrik Braedt
  • Patent number: 9102381
    Abstract: A wheel for pedal-assisted bikes includes a fixed structure associable with the frame having a driving pedal crank; a circle element rotatably mounted on the structure around a main rotation axis; a propulsion disc rotatably mounted on the structure and connectable to the driving pedal crank; motion transmission elements for transmitting rotary motion from the disc to the circle element, including a speed gear device for changing the motion transmission ratio from the disc to the circle element; and a first detection device suitable for detecting the force transmitted to the circle element from the disc; an electric motor associated with the structure for cooperating with the disc to motorize the circle element; a power supply for electrically supplying the motor; a processing and control unit for controlling the activation of the motor according to the force detected by the first detection device.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: August 11, 2015
    Assignee: C.R.D. CENTRO RICERCHE DUCATI TRENTO S.R.L.
    Inventors: Adriano Zanfei, Fabio Giorgi
  • Patent number: 9061546
    Abstract: A hub assembly for a bicycle includes a hub shell, a plurality of pawl units, and an annular ratchet member. The hub shell is rotatably mounted on a hub axle, and the annular ratchet member is disposed to rotate with respect to the hub axle. Each pawl unit includes a pawl that is movable between driven and idle positions, an elongated mount that extends to bridge a gap formed in the pawl, and a biasing member that is mounted on the elongated mount to bias the pawl to move to the driven position so as to engage to the annular ratchet member.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: June 23, 2015
    Assignee: Kun Teng Industry Co., Ltd.
    Inventor: Hubert Chen
  • Patent number: 8955660
    Abstract: Wheel hub, in particular bicycle rear wheel hub, comprising hub shell and freewheel shell both supported by bearings to be rotatable relative to the hub axle, where the hub shell is slidingly coupled through spline coupling with a freewheel coupling ring provided with axial pawl teeth on its axial face, wherein an annular permanent magnet (6) is seated in the freewheel coupling ring (3), and another permanent magnet (5) is arranged coaxial to the permanent magnet (6) in the hub shell (1), while the axial pawl teeth (B) of the freewheel coupling ring (3) intermesh with the axial pawl teeth (C) of the freewheel shell (4), and also the inner ring of the bearing (7a) disposed in the hub shell (1) abuts against a hub axle (2) collar (16) and the outer ring of the bearing (7a) is urged towards the said hub axle (2) collar (16) by an adjusting screw (10) screwed in the hub shell (1) from the non-drive side, while the inner ring of the bearing (7b) abuts against the hub axle collar (17) and its outer ring abuts on th
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: February 17, 2015
    Assignees: Soul-Kozak
    Inventors: Mariusz Kozak, Janusz Kozak
  • Patent number: 8936144
    Abstract: Hub for two-wheeled vehicles having a hub axle and a hub body and a rotor and with a toothed disk freewheel comprising a pair of interacting engagement components each comprising one axial toothing. The engagement components are biased in the engagement position via a biasing device. The one of the engagement components is received at the hub body to be non-rotatable and axially displaceable and the other of the engagement components is provided non-rotatable at the rotor for transmitting a rotary motion from the rotor to the hub body in the engagement position of the two engagement components. At least one engagement component is configured as a toothed disk and is provided with the axial toothing and has an axial width which is at least the size of half the outer radius of the axial toothing.
    Type: Grant
    Filed: August 14, 2012
    Date of Patent: January 20, 2015
    Assignee: DT Swiss Inc.
    Inventors: Stefan Spahr, Martin Walthert
  • Patent number: 8905214
    Abstract: An electric hub unit includes a hub composed of first casing and a second casing. An electric unit is located between the first and second casings. An axle extends through two respective centers of the first and second casings. The first casing has a reception recess defined in one side thereof. A first extension and a second extension extend axially from the first casing and toward in opposite directions. A bearing is located in the inside of the second extension. A socket unit has a tubular portion and a ratchet unit is connected to the socket unit. The socket unit is mounted to outside of the first casing, and a bearing and a plate are located between the tubular portion and the first extension. The hub unit prevents water and foreign objects from entering into the hub.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: December 9, 2014
    Assignee: Joy Industrial Co., Ltd.
    Inventor: Chun-Hsung Chen
  • Publication number: 20140326568
    Abstract: A freewheel hub and a bicycle, pedelec, fast pedelec or e-bike comprising this freewheel hub is provided. The freewheel hub comprises a rotating hub shell for carrying a free running wheel. Torque is coupled to the rotating hub shell via a torque transmitting member. At least one magneto-elastically active region is directly or indirectly attached to or forms a part of the torque transmitting member in such a manner that the applied torque is transmitted to the active region comprising at least one magnetically polarized region. The magnetic polarization becomes increasingly helically shaped as the applied torque increases. A magneto-elastic sensor means having at least one magnetic field sensor is arranged proximate to the at least one magneto-elastically active region for outputting a signal corresponding to a torque-induced magnetic flux emanating from the magnetically polarized region.
    Type: Application
    Filed: April 28, 2014
    Publication date: November 6, 2014
    Applicant: Methode Electronics Malta Ltd
    Inventor: Johannes GIEßIBL
  • Patent number: 8875862
    Abstract: A ratchet hub using a magnetic force for restoration as disclosed has a freewheel unit and a ratchet ring thereof forming a unidirectional ratchet mechanism and a magnetic assembly using a magnetically repulsive force to normally make the freewheel unit and ratchet ring engage mutually and allow force transmission therebetween. Once a force disengaging the freewheel unit from the ratchet ring surpasses the magnetically repulsive force, the ratchet ring is pushed away from the freewheel unit. When the force disengaging the freewheel unit from the ratchet ring disappears, the magnetically repulsive force automatically and promptly returns the ratchet ring to engage with the freewheel unit again.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: November 4, 2014
    Assignee: VP Components Co., Ltd.
    Inventor: Wen-Hwa Lin
  • Patent number: 8833536
    Abstract: A ratchet mechanism of a bicycle hub includes a ring fixed in the hub. The ring has a tapered surface and a flange is formed in the inner periphery of the ring. A driving unit is located in the hub and has multiple first ratchet teeth extending axially therefrom. A passive unit is located in the tapered surface and corresponding to the driving unit. The passive unit has a passive seat which has a tapered outer face matched with the tapered surface. The passive seat further has a stop portion which is stopped by the flange in one direction. The passive seat has multiple second ratchet teeth engaged with the first ratchet teeth. A magnetic unit is located between the hub and the passive set, and two magnetic members which are magnetically repulsive to each other so as to linearly move the passive seat toward the driving portion.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: September 16, 2014
    Assignee: Kunshan Henry Metal Technology Co., Ltd.
    Inventor: Kee Ping Tho
  • Patent number: 8827061
    Abstract: A twin clutch hub includes a one-way roller clutch and a ratchet pawl based clutch mounted to a bicycle hub. A chain wheel seat receives driving power from a bicycle rear wheel and is in operative coupling with the one-way roller clutch and the ratchet pawl based clutch, which are in turn operatively coupled to the hub. When the ratchet pawl based clutch shows a returning side tooth backlash that is greater than or equal to an angle of deformation of the one-way roller clutch, transmission is performed with the one-way roller clutch to make backlash approximating zero. When the angle of returning side tooth backlash of the ratchet pawl based clutch is smaller than or equal to the angle of deformation of the one-way roller clutch, transmission is performed through both the one-way roller clutch and the ratchet pawl based clutch to realize high efficiency twin clutch hub.
    Type: Grant
    Filed: January 27, 2012
    Date of Patent: September 9, 2014
    Inventor: Marn Taek Seol
  • Patent number: 8789673
    Abstract: A ratchet mechanism of a hub assembly is located between the hub and the tubular portion, and includes a driving member which is movable linearly in the tubular portion. One side of the driving member has a cone-shaped first ratchet portion located axially and is composed of two triangular contact surfaces. A passive member is fixed in the hub and has a cone-shaped second ratchet portion which is engaged with the first ratchet portion. A returning member is located between the hub and the driving member. The passive member is fixed to the hub easily. By the triangular cone-shaped first and second ratchet portions, the contact are and the friction between the ratchet portions are reduced, and the engagement and disengagement is more quick and smooth.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: July 29, 2014
    Assignee: Kunshan Henry Metal Technology Co., Ltd.
    Inventor: Kee Ping Tho
  • Patent number: 8757341
    Abstract: The present invention relates to a rear wheel hub for a bicycle, a rear wheel for a bicycle, and a bicycle. In order to provide a rear wheel hub which, with a further reduction in weight, still allows reliable transmission of force, the hub has a hub body (12), an axle body (14), a first bearing device (16) between the axle body and the hub body, a freewheel body (18) for accommodating at least one sprocket, a second bearing device (20) between the axle body and the freewheel body, and a freewheel arrangement (22) between the freewheel body and the hub body which in a first rotational direction (26) about the rotational axis establishes a coupling between the freewheel body and the hub body, and in a second rotational direction (28) which is opposite that of the first rotational direction, the freewheel body is freely rotatable with respect to the hub body.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: June 24, 2014
    Inventor: Jochen Klieber
  • Patent number: 8733524
    Abstract: A bicycle hub driving system includes a hub with a socket unit connected thereto. An axle unit extends through the hub and the socket unit. A clutch driving device is located between the ratchet unit and the hub. The clutch driving device includes a clutch unit, a driving unit and a driving member located between the clutch unit and the driving unit. The clutch unit includes a first ratchet portion on the ratchet unit and a second ratchet portion on the driving member. The driving unit includes first driving teeth on the hub and second driving teeth on the driving member. By the linear movement of the riving member between the first driving teeth and the first ratchet portion, the first and second ratchet portions are engaged with each other or disengaged from each other to co-rotate the hub and the socket unit in one direction.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: May 27, 2014
    Assignee: Joy Industrial Co., Ltd.
    Inventor: Chun-Hsung Chen
  • Patent number: 8714328
    Abstract: A hub assembly includes a ratchet mechanism located between the hub and the tubular portion on one end of the hub, and including a driving member which is located in the tubular portion and is movable linearly. One side of the driving member has a cone-shaped first ratchet portion located axially and is composed of two triangular contact surfaces. A passive member is movable in the first slot and one side of the passive member has a cone-shaped second ratchet portion which is engaged with the first ratchet portion. A returning member unit is located between the hub and the passive member, and between the tubular portion and the driving member. By the triangular cone-shaped first and second ratchet portions, the contact area and the friction between the ratchet portions are reduced, and the engagement and disengagement is more quick and smooth.
    Type: Grant
    Filed: October 12, 2011
    Date of Patent: May 6, 2014
    Assignee: Kunshan Henry Metal Technology Co., Ltd.
    Inventor: Kee Ping Tho
  • Publication number: 20140060992
    Abstract: A hub for at least partially muscle-powered vehicles having a hub axle, a hub body, a rotatable driving device, and a freewheel device. The freewheel device includes a first and a second engagement component cooperating with one another having at least one axial toothing each. The freewheel device is biased to the engaging position via a magnetic biasing device. A first magnetic device biases the first engagement component and a second magnetic device biases the second engagement component to the engaging position. At least one magnetic component comprises a carrier unit and a multitude of magnetic units disposed thereat.
    Type: Application
    Filed: August 26, 2013
    Publication date: March 6, 2014
    Applicant: DT SWISS INC.
    Inventors: Stefan Spahr, Martin Walthert
  • Patent number: 8651257
    Abstract: A driving structure for a wheel hub of a bicycle includes a wheel hub having a ratchet wheel, a ratchet base having an operating member and connected to the wheel hub, an engaging block and an elastic member both assembled onto the operating member, the elastic member abutting against the engaging block so that the engaging block is engaged with the ratchet wheel, a rotating ring assembled between the ratchet wheel and the operating member and having a plurality of abutting plates, each abutting plate abutting against the corresponding engaging block, an elastomer defined on the operating member and abutting against the rotating ring. Under this arrangement, the ratchet wheel simultaneously engages with the engaging blocks, because of the rotating ring and the elastomer.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: February 18, 2014
    Inventor: Bin Chang
  • Patent number: 8641151
    Abstract: A sprocket support structure includes a main body, a plurality of projections and an abutment ring. The main body includes an outer surface with a plurality of parallel extending sprocket attachment splines defining a plurality of sprocket engaging grooves between the sprocket attachment splines. The projections extend radially outward farther than the sprocket attachment splines with respect to a rotation axis of the main body. Each of the projections includes a first surface facing in a first axial direction of the main body. The abutment ring is disposed on the main body as a separate member from the main body. The abutment ring includes a second surface facing in the first axial direction and axially spaced from the first surfaces of the projections with respect to the rotation axis. The second surface of the abutment ring is exposed between the projections as viewed along the sprocket engaging grooves.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: February 4, 2014
    Assignee: Shimano Inc.
    Inventor: Kenji Kamada
  • Publication number: 20130299295
    Abstract: A hub includes an arbor shaft, a ratchet wheel, an internally-toothed ring, a shell, a clutch member and a second spring. The ratchet wheel includes at least one chain wheel, a plurality of concavities, a plurality of pawls and a plurality of first springs. The chain wheel and the concavities are disposed on two opposite sides of the ratchet wheel respectively. Each pawl has a first end and a second end. Each spring has a first end and a second end. The internally-toothed ring surrounds the pawls and has an inner periphery formed with a plurality of inner teeth. The clutch member has an axial hole and a cam. The present invention is advantageous in the way that the pawls and the internally-toothed ring do not make “kada-kada” rattle noise nor drive the pedals during idle running of the hub.
    Type: Application
    Filed: March 6, 2013
    Publication date: November 14, 2013
    Applicant: Kenlight Trading Corp.
    Inventor: Chia-Ling Yang
  • Patent number: 8556055
    Abstract: A driving apparatus for a rear hub of a bicycle includes a hub shell, a single-directional driving component and a dual-directional driving component, wherein the single-directional driving component has a ratchet ring and a ratchet base, and a plurality of inclined helical surfaces are located around an inner perimeter of the ratchet ring, and a plurality of engaging ribs that engage with the wedging ribs of the fixed ring of the hub shell are located around an outer perimeter of the ratchet ring. A plurality of conjugating portions are located around an outer perimeter at one end of the ratchet base to form a resilient unit and a hook against the inclined helical surface. A plurality of conjugating ribs are located around one end of the dual-directional driving component, and the conjugating ribs are used to engage with the wedging ribs of the fixed ring of the hub shell.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: October 15, 2013
    Assignee: Chosen Co. Ltd.
    Inventor: Ching-Shu Chen
  • Patent number: 8544626
    Abstract: A high efficiency bicycle hub for near frictionless free wheeling comprising a hub having a toothed engagement ring, a driver having a retractable engagement member that can engage and disengage from the hub, and a retraction device to facilitate a disengaged configuration. The retraction device comprises a retaining ring having retraction members and the retractable engagement member comprises reciprocal retraction members to “catch” the retraction member to maintain a disengaged configuration. In use, forward rotation of the driver engages the retractable engagement member with the toothed engagement ring of the hub to drive the hub. Reverse rotation of the driver rotates the reciprocal retraction members underneath or behind the retraction member thereby disengaging the driver from the hub.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: October 1, 2013
    Assignee: Bear Corporation
    Inventor: George French
  • Publication number: 20130233667
    Abstract: A reinforcement structure for bearings of a bicycle hub assembly includes a hub and an axle extends through the hub. A connection portion is defined in one end of the hub. A ratchet sleeve has a transmission portion located on one end thereof and a bearing is located in the transmission portion. Multiple slots are defined in outside of the transmission portion and the axle extends through the ratchet sleeve. A ratchet unit having multiple ratchet teeth and a ratchet ring which is connected to the connection portion. The ratchet teeth are engaged with the slots. The ratchet ring has multiple ratchet slots defined in the inner periphery thereof and the ratchet teeth are engaged with the ratchet slots. A positioning unit has a positioning member located on one side of the bearing so as to prevent the bearing from shifting axially.
    Type: Application
    Filed: March 7, 2012
    Publication date: September 12, 2013
    Applicants: ELLSWORTH HANDCRAFTED BICYCLES, INC., JOY INDUSTRIAL CO., LTD.
    Inventors: CHUN-HSUNG CHEN, ANTHONY SKEEN ELLSWORTH
  • Patent number: 8485335
    Abstract: A torque coupling assembly including: a driving assembly with a driving axle and a rotatable driving shell; a driven assembly with a driven axle and a rotatable driven shell; and a frame element. The driving and driven shells each include an axial projection. In an assembled position, the driving and driven assemblies are both connected to the frame and their respective axial projections are aligned to transmit rotational torque between the driving shell and the driven shell. In a removed position, one of the driving assembly and the driven assembly may be removed in a generally radial direction relative to the frame and the other of the driving assembly and the driven assembly. The driving and/or driven assembly may include ramped lead-in geometry. The driving and/or driven assembly may include shielding geometry to axially overlap at least a portion of the axial projection.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: July 16, 2013
    Inventor: Raphael Schlanger