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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...
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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...
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7585237 |
Bicycle component with axle fixing structure
A bicycle component is configured with an axle fixing structure. In the preferred embodiment, the bicycle component is an electric derailleur. The bicycle component has a base member rotatably...
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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...
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7520831 |
Gear-shifting apparatus, and bicycle incorporating same
A gear-shifting apparatus is provided which does not require a position of a chain to be set with high precision, and which reduces a risk of the chain coming off an adjacent sprocket due to a...
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7503863 |
Bicycle derailleur motor unit assembly
A bicycle front derailleur motor unit assembly is provided that includes a motorized front derailleur mounting member and a motor unit. The front derailleur mounting member is configured to be...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ),...
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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...
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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...
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6899649 |
Motor unit for an assisting apparatus for changing speeds in a bicycle transmission
A control apparatus is provided for a bicycle shift control device that uses power from a rotating member to assist the operation of a bicycle transmission, wherein the shift control device...
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6890276 |
Front derailleur for bicycle with electrical motor and gear reducer
Front bicycle derailleur comprising an electrical motor controlling an actuating arm, consisting of an extension of an articulated arm of the derailleur, by means of a geared reduction...
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6884190 |
Bicycle shift control device that inhibits the generation of a second shift signal after the generation of a first shift signal
A bicycle shift control device includes a shift signal output unit for outputting shift signals and an inhibiting unit operatively coupled to the shift signal output unit for inhibiting the output...
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6726587 |
Adjustable bicycle derailleur
A derailleur includes a base member, a movable member coupled for moving relative to the base member and supporting a chain guide, a first actuating unit for moving the movable member relative to...
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6726586 |
Motorized bicycle actuator assembly
A motorized bicycle actuator assembly has a motorized actuator unit arranged to operate a bicycle component. The motorized actuator unit has a drive train coupled to a reversible motor, and a...
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6722220 |
Override control for a bicycle transmission
A shift control device is provided for a bicycle that uses shift control signals from a signal provider to operate an automatic shifting mechanism of a bicycle transmission, wherein the shift...
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6648782 |
Actuating apparatus for a bicycle derailleur, with coupling connected to the driven shaft
Electrically operated actuating apparatus for a bicycle derailleur, having an output shaft ( 16 ) rotationally connected to a driven shaft ( 29 ) by means of a coupling ( 34 ), allowing a limited...
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6638190 |
Compact hydraulically-operated derailleur shifting system for bicycles
A derailleur utilizes a 4-bar linkage, including a housing which acts as one bar of the 4-bar linkage. A hydraulic assembly located within the housing moves the housing relative to the mounting...
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6572500 |
Bicycle sprocket with chain support projections
A sprocket assembly is provided for a bicycle having a large sprocket and a small sprocket. The large sprocket includes one or more chain support projections formed on the side surface opposed to...
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6488603 |
Freewheel for a bicycle
A freewheel is provided for mounting a plurality of sprockets on an axle of a bicycle. The freewheel basically includes an inner tubular body, an outer tubular body coaxially mounted on the inner...
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6325733 |
Hydraulically-operated bicycle shifting system with power shifting
A family of new bicycle shifting systems incorporate improved derailleur designs that are controlled by sealed hydraulic actuators. The shifting systems (i) a hydraulically-actuated,...
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6319163 |
Transport device in a packaging machine
A transport device in a packaging machine includes a plurality of circulating transport chains which each travel over at least one chain wheel. In order to be able to adjust the transport device to...
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6293883 |
Quick release derailleur
A quick-release bicycle derailleur includes a base member, a movable member supporting a chain guide, and a linkage mechanism coupling the base member to the movable member so that the movable...
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6293881 |
Operating device for vehicle component assembly
An operating device is provided for operating a vehicle component assembly. More specifically, the operating device moves a movable member between at least two positions. The operating device...
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6159119 |
Gas actuating mechanism for a bicycle derailleur
A gas actuated derailleur for a bicycle includes a base member, a movable member supporting a chain guide, a coupling mechanism coupling the base member to the movable member so that the movable...
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6159118 |
Horizontally disposed bicycle derailleur
A guide pulley mounting mechanism for use with a bicycle derailleur. A rear take-up pulley is mounted to a plunger rod that travels within a plunger frame in a more or less horizontal arrangement...
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6146297 |
Bicycle automatic shift control device with varying shift speeds
An automatic shift control apparatus for a bicycle transmission includes a shift control mechanism for the bicycle transmission and a bicycle speed receiving mechanism for receiving a bicycle...
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6047230 |
Automatic bicycle transmission
A gear shifting system for a human-powered chain- or belt-driven vehicle includes a wheel speed sensor, a cadence sensor, a gear changer position sensor, a tension sensor, a clinometer, a...
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6045470 |
Front derailleur with chainline controlling idler cog
A front derailleur for shifting gears on a chain driven bicycle, the chain having a drive run and a return run from a plurality of chainwheels, uses a chain supporting idler cog to vertically...
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6042495 |
Hydraulically-operated bicycle shifting and braking systems
A family of new bicycle shifting systems incorporate improved derailleur designs that are controlled by sealed hydraulic actuators. The shifting systems (i) a hydraulically-actuated,...
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6023646 |
Liquid crystal display device for a bicycle
A display device provided to be associated, on the one hand, with an electric gearshift, and, on the other hand, with at least one sensor of at least one performance parameter of the bicycle or the...
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6015360 |
Automatic gearshifting device of multi-stage fly wheel of bicycle
An automatic gearshifting device of a bicycle multi-stage fly wheel is composed of a main body, a rotary shaft, an urging member, a plurality of weights located in a receiving cell of the main...
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5971878 |
Multiple sprocket assembly for bicycle
A multiple sprocket device for a bicycle includes a chain and two or more sprockets having different sizes and having a number of peripheral teeth for engaging with the chain. A number of guiding...
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5897451 |
Bicycle derailleur having operating forces disposed on opposite sides of a link pivot
A bicycle derailleur includes a base member, a movable member supporting a chain guide, and a first link having first and second ends. The first end of the first link is movably mounted to the base...
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5890979 |
Variable transmission apparatus for bicycles
A gear shift apparatus for bicycles of the kind conventionally known as a derailleur is provided with a selectively actuable master cylinder operatively connected to a slave cylinder. The slave...
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5876296 |
Gear shifting sprocket set for bicycle chain wheel
A bicycle sprocket set is composed of a small sprocket and a large sprocket coaxial with the small sprocket. The large sprocket is provided with an axially oriented recess in the bottom portion...
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5865454 |
Electronically controlled speed change device for bicycles
An electronically controlled speed change device for bicycles has an automatic mode of operation in which, at the request of the cyclist for increase or decrease of the speed ratio, the system...
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5857931 |
Traveling chain derailer
A traveling chain mechanism has spaced sprockets with an endless chain trained around them. A traveling chain is transferable between the sprockets radially inward of the endless chain. The speed...
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5772547 |
Bicycle crankset
A bicycle crankset for mounting a plurality of chainrings includes a crank arm having a first end for mounting a pedal and a second end having a boss for mounting to a crank axle, a chainring...
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5762575 |
Lock mechanism for a traveling chain
A chain drive mechanism has spaced sprockets about which is trained an endless chain. A traveling chain is disposed radially inward of the endless chain and encircles one or the other of the...
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5759124 |
Multistage sprocket used in a bicycle rear derailleur system
A multistage sprocket assembly for a bicycle with at least one large sprocket and one small sprocket disposed adjacent to each other and assembled in a relationship such that the distance between...
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