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| Number | Title | Issue Date |
| 7871346 | Bicycle derailleur A bicycle derailleur includes a mounting member, at least one linkage member, a movable chain guide and a chain guide tensioning mechanism. The mounting member is configured to be attached to a bicycle frame. The linkage member is supported to the mounting member. T... | 01/18/2011 |
| 7621834 | Bicycle transmission apparatus including a one-way clutch and a slide mechanism, and bicycle incorporating same A transmission mechanism obtains reduced cost by facilitating a process for guide grooves formed on an inner cylinder of a ball spline mechanism and regulates a movement of a drive sprocket in an axial direction by means of a simple structure. A one-way clutch trans... | 11/24/2009 |
| 7597638 | Transmission A transmission including an input cog assembly mounted to an input shaft and an output cog assembly mounted to an output shaft. The input and output cog assemblies include a plurality of varying diameter input and output cogs, respectively, arranged sequentially. A ... | 10/06/2009 |
| 7563186 | Gearshift control device for a chain and sprocket transmission system A gearshift control device for a chain and sprocket transmission system including a gearshift member that is movable along a transverse direction relative to the plane defined by the chain, a shaft, a first driving element having a drive member that is non-centered ... | 07/21/2009 |
| 7503862 | Transmission with internal protective shield and bicycle incorporating same A transmission includes a ball spline mechanism having an outer member which can rotate integrally with an inner member by means of balls housed in guide grooves and which can move in the axial direction; and a derailer which shifts a chain wrapped around a first sp... | 03/17/2009 |
| 7438658 | Bicycle front derailleur A bicycle front derailleur includes a chain guide that is provided with a pushing element that is movable relative to the chain guide to assist in shifting a bicycle chain from a smaller front sprocket to an adjacent larger sprocket. The chain guide is part of a mov... | 10/21/2008 |
| 7381143 | Transmission apparatus for a bicycle A transmission apparatus is capable of retaining an endless transmission chain on a rotatable member, even where a small inter-axis distance remains between two rotatable shafts to which each of two rotatable members is drivingly connected. The transmission includes... | 06/03/2008 |
| 7373232 | Method for carrying out a multiple gear-shifting in an electronically servo-assisted bicycle gearshift and related gearshift An electronically servo-assisted gearshift actuates a multiple gear-shifting that moves a chain from a current toothed wheel to a target toothed wheel not immediately adjacent to the current toothed wheel in a gearshift group having at least three toothed wheels. Ac... | 05/13/2008 |
| 7361109 | Bicycle gear set A bicycle gear assembly has first and second sets of cog wheels, each having at least three cog wheels of various sizes including a largest cog wheel and a smallest cog wheel. These two sets are oriented so that the largest cog wheel of the first set is aligned with... | 04/22/2008 |
| 7294076 | Transmission apparatus for bicycle A transmission apparatus for a bicycle is capable of performing a transmission operation even while operating or running by the inertia of the bicycle. The transmission apparatus T for a bicycle includes a driving sprocket member rotationally driven by a crankshaft;... | 11/13/2007 |
| 7290458 | Bicycle derailleur with a motor disposed within a linkage mechanism A bicycle derailleur comprises a base member, a movable member for supporting a chain guide, a first link member pivotably coupled to the base member and to the movable member through respective first and second link pins, a second link member pivotably coupled to t... | 11/06/2007 |
| 7264256 | Bracket assembly for a motor controlled bicycle transmission A bracket assembly for mounting a motor or other control device to a bicycle frame includes a bracket base for supporting the control device at least partially above a chain stay, and a bracket support extending from the bracket base for coupling the bracket base to... | 09/04/2007 |
| 7258637 | Bicycle transmission A bicycle transmission is configured and arranged to improve the durability of the transmission. The transmission basically has a transmission operating device, a support structure, a front input section, an intermediate transmission and a rear output section. The t... | 08/21/2007 |
| 7258638 | Sprocket of a chain transmission for a bicycle A sprocket of a chain transmission for a bicycle is described, intended to be coupled with a further sprocket with a smaller diameter in a group of sprockets integral in rotation. The sprocket comprises a plurality of teeth which follow each other on the sprocket se... | 08/21/2007 |
| 7247108 | Method and apparatus for controlling an automatic bicycle transmission An apparatus for determining when to shift a bicycle chain from a first sprocket having a first number of teeth to a second sprocket having a second number of teeth comprises a memory for storing a reference value, and a processor that determines a shift value corre... | 07/24/2007 |
| 7223189 | Electronically servo-assisted bicycle gearshift and related method A method for electronically servo-assisting a bicycle gearshift, including the steps of: a) driving an actuator of a bicycle gearshift to displace a chain of the gearshift in an axial direction with respect to a gearshift group comprising at least two sprockets; b) ... | 05/29/2007 |
| 7207914 | Bicycle rear derailleur guard A bicycle rear derailleur guard assembly for use with a bicycle having a derailleur mounted to a frame of the bicycle by a derailleur mounting bolt. The derailleur guard assembly preferably includes a body supportable by an axle assembly of the bicycle. The body is ... | 04/24/2007 |
| 7207911 | Process for controlling gear shifting in a cycle, and corresponding systems and components A process for controlling the transmission of a cycle having one or more gear sprockets is provided. The gear sprockets include one or more angular positions in which shifting of the gears is facilitated. A sensor is provided to detect the one or more angular positi... | 04/24/2007 |
| 7207912 | Bicycle shift control apparatus that prevents undesirable chain angles A shift control apparatus is provided for a bicycle having a plurality of front sprockets and a plurality of rear sprockets, wherein a front derailleur shifts a chain among the plurality of front sprockets and a rear derailleur shifts the chain among the plurality o... | 04/24/2007 |
| 7184872 | Electronically servo-assisted bicycle gearshift and related method An electronically servo-assisted bicycle gearshift and method for electronically shifting the gears of a bicycle involves the steps of: receiving a signal requesting a displacement of a chain of a bicycle gearshift from a first sprocket to a second adjacent sprocket... | 02/27/2007 |
| 7159881 | Electronically servo-assisted bicycle gearshift and related method A method for electronically servo-assisting a bicycle gearshift to allow compensation for misalignments between the chain of a bicycle gearshift and one or more sprockets of the gearshift, the method including the steps of: driving an actuator of a bicycle gearshift... | 01/09/2007 |
| 7156764 | Extensible chainwheel for a bicycle powertrain assembly A driving sprocket, or chainwheel, for a bicycle crankset having a toothed ring whose ring is divided into a plurality of segments, the segments being borne by a frame that is rotationally movable about a crankset axle, each sprocket segment being movable between a ... | 01/02/2007 |
| 7153229 | Chain alignment structure of bicycle transmission The present invention provides a chain alignment mechanism of a transmission for a bicycle which includes a drive sprocket wheel which is rotatably driven by a crankshaft, a driven sprocket wheel which is drivably connected with an output shaft which is rotated in a... | 12/26/2006 |
| 7144027 | Bicycle control apparatus that sets a bicycle transmission to a predetermined gear ratio A control apparatus for an electrically operated bicycle transmission comprises a power supply sensor and a control unit operatively coupled to the power supply sensor. The power supply sensor senses a power characteristic of a power supply, and the control unit pro... | 12/05/2006 |
| 7131656 | Sprocket support member for a bicycle sprocket assembly A bicycle sprocket assembly having at least one subassembly including a sprocket support member and two sprockets. The support member has at least one engagement portion for coupling it to a bicycle freewheel and at least one fastening portion arranged in a radially... | 11/07/2006 |
| 7118505 | Integrally formed gear set with a plurality of gears An integrally formed gear set with a plurality of gears comprises a first, a second and a third gear. Each gear has a plurality of teeth and a plurality of recess portions. The teeth and recess portions are alternatively arranged. The first, second and third gears a... | 10/10/2006 |
| 7090602 | Assisting apparatus for changing speeds in a bicycle transmission A power saving apparatus is provided for an assisting apparatus that uses power from a rotating member to assist the operation of a bicycle transmission. The power saving apparatus comprises a rotating member engaging member that moves between a rotating member enga... | 08/15/2006 |
| 7086974 | Actuator for a bicycle gear-shift A bicycle gear-shift actuator (10, 100) having an articulated quadrilateral support (11) with four connecting rods (21, 22, 23, 24) hinged together by four pin elements (41, 42, 43, 44), and a motor member (12), having a variable l... | 08/08/2006 |
| 7061228 | Apparatus for detecting rotation of a bicycle part An apparatus for detecting rotation of a bicycle part comprises a casing member comprising a generally annular body structured to be mounted to the bicycle part so that the annular body is incapable of rotating relative to the bicycle part as the bicycle part rotate... | 06/13/2006 |
| 7059983 | Multiple sprocket, multiple function chain guide Chain guides for the front sprockets of bicycles are disclosed. More particularly, the chain guides are adapted or configured for bicycles that have multiple (usually 2 or 3) sprockets/chain rings mounted to the crank assembly. The setup is provided to freely allow ... | 06/13/2006 |
| 7042123 | Bicycle electrical generator hub A bicycle gearshift system is mounted on the rear part of the frame of the bicycle. The bicycle gearshift system includes an electrically powered rear derailleur, a rear hub, a charger part, and a gearshift control part. The electrically powered rear derailleur is m... | 05/09/2006 |
| 7036836 | Automatic speed change device for bicycle gearbox A structure of an automatic speed change device for bicycle gearbox is disclosed in this present invention. The above-mentioned design can be applied to a bicycle with a rear wheel speed change device. According to this invention, the automatic speed change device i... | 05/02/2006 |
| 7025698 | Front derailleur with annular chain guide, bicycle and method of operation A front derailleur including an annular chain guide for engagement and disengagement of a bicycle chain with multiple chain rings of a crankset. The annular chain guide may be positioned by linear guide rods. The annular chain guide may have an inner lifting surface... | 04/11/2006 |
| 7022037 | Gear assembly for a bicycle gear change Gear assembly for a bicycle gear change, comprising at least one gear with a larger diameter and at least one gear with a smaller diameter. The selected gear, generally of a larger diameter, has at least one sector dedicated to upwards shifting that may include a pl... | 04/04/2006 |
| 7011590 | Shift assist apparatus for a bicycle transmission An assisting apparatus for using power from a moving member to assist the operation of a bicycle transmission comprises a power transfer mechanism, a drive coupling mechanism, and a position maintaining mechanism. The power transfer mechanism moves in one of a first... | 03/14/2006 |
| 7001294 | Method of using a motion sensor with a bicycle sprocket assembly A method for shifting a bicycle transmission that includes a derailleur for shifting a chain among a plurality of sprockets. The transmission includes at least a first sprocket and a second sprocket, wherein at least one of the first sprocket and the second sprocket... | 02/21/2006 |
| 6993995 | Shift positioning device for a bicycle transmission A bicycle shift positioning device includes a base member adapted to be mounted to a bicycle; a first rotating body rotatably mounted relative to the base member; a second rotating body rotatably mounted relative to the first rotating body; a positioning member coup... | 02/07/2006 |
| 6979009 | Motorized bicycle derailleur assembly A motorized bicycle derailleur assembly is provided with a motor unit, a derailleur, and a motor linkage. The motor unit rotates an output shaft in first and second rotational directions to shift the derailleur. The derailleur includes a fixing body, a chain guide a... | 12/27/2005 |
| 6959939 | Electronic bicycle shift control device A bicycle shift control device is adapted to be mounted to a bicycle equipped with an alternating current generator and a shifting device having a plurality of speed steps. The shift control device includes a power storage unit adapted to store electrical power from... | 11/01/2005 |
| 6945888 | Combined analog and digital derailleur position processing apparatus A derailleur position processing apparatus includes a derailleur moving member that moves with the derailleur; an analog signal providing mechanism operatively coupled to the derailleur moving member, wherein the analog signal providing mechanism provides an analog ... | 09/20/2005 |
