Abstract

Rear derailleur (10) for bicycles comprising a moving member (1) movable with respect to a base member (2), a tensioner shaft (3) rotationally mounted on the moving member (1) and a tensioner (4) fixed to the tensioner shaft (3), wherein the tensioner shaft (3) completely crosses the moving member (1) and is fixed to the tensioner (4) on both sides of the moving member (1) which allows the anchoring points of the tensioner with respect to the moving member to be as far apart as possible, thus obtaining the stiffest and most resistant possible tensioner structure, and resulting in a more precise and reliable gear shift.

IPC Classes  ?

• B62M 9/121 - Rear derailleurs
• B62M 9/1248 - Mechanisms for shifting laterally characterised by the use of biasing means, e.g. springsArrangements thereof
• B62M 9/1242 - Mechanisms for shifting laterally characterised by the linkage mechanisms
• B62M 9/1244 - Mechanisms for shifting laterally limiting or positioning the movement

Abstract

The present invention relates to a rear derailleur (100) comprising a base component (1) that can be coupled on an anchoring axis (19) to a bicycle frame (9) and a moveable component (2), components connected to each other by means of a first connector component (3) articulated with respect to the base component (1) by means of a first rotation axis (13) and articulated with respect to the moveable component (2) by means of a second rotation axis (23), and a second connector component (4) articulated with respect to the base component (1) by means of a third rotation axis (14) and articulated with respect to the moveable component (2) by means of a fourth rotation axis (24) parallel to the first rotation axis (13), wherein the third rotation axis (14) is arranged in the base component (1) on the side opposite to the first rotation axis (13) with respect to a central area containing the anchoring axis (19).

IPC Classes  ?

• B62M 9/124 - Mechanisms for shifting laterally

Goods & Services

Computers for use in bicycles; satellite navigation system for bicycles; global positioning systems for use in bicycles; bicycle speedometers; cyclometers; sensors for bicycles; touch screen sensors for bicycles; optical position sensors for bicycles; LED position sensors for bicycles; optical speed sensors for bicycles; digital sensors for bicycles; electronic sensors for bicycles; sensors for bicycle measuring instruments; sensors for measuring the speed of bicycles; power testers for bicycles; distance meters for bicycles; electronic heart rate recorders [other than for medical use] for bicycles; data loggers for bicycles; distance recording apparatus for bicycles; software for recording physical exercise on bicycles; navigation, guidance, tracking and map making apparatus and instruments for bicycles; GPS navigation devices for bicycles; portable navigation devices for bicycles; navigation software for bicycles; software for GPS navigation systems for bicycles; electric batteries for bicycles; rechargeable electric batteries for bicycles; battery cables for bicycles; battery adapters for bicycles; battery chargers for bicycles; controller for bicycle motors; regulators for bicycle motors; software drivers for electronic devices enabling communication between computer hardware and electronic devices for bicycles. Bicycles; folding bicycles; racing bicycles; road racing bicycles; sports bicycles; mountain bicycles; children's bicycles; touring bicycles; delivery bicycles; electric bicycles; folding electric bicycles; tandem bicycles; all-terrain bicycles; children's bicycles without pedals [vehicles]; horns for bicycles; bicycle horns; bicycle brakes; hydraulic disc brakes for bicycles; brake cables for bicycles; brake levers for bicycles; brake blocks [parts of bicycles]; bicycle chains; roller chains for bicycles; drive chains [bicycle parts]; chain plates for bicycles; chain guards for bicycles; toe clips for use on bicycles; foot straps for use on bicycles; carts for pets adapted for bicycles; baskets adapted for bicycles; bags adapted for bicycles; special covers for bicycles; wind protection covers for electric bicycles; structural parts of bicycles; shock absorbers for bicycles; suspension systems for bicycles; transmissions for bicycles; frames for bicycles; direction indicators for bicycles; axles for bicycles; bicycle mudguards; forks [parts of bicycles]; front fork joints [parts of bicycles]; fork crowns [bicycle parts]; bicycle gears; shift gears [parts of bicycles]; stabilizers for bicycles; bicycle handlebars; rotating grips for bicycles; bicycle handlebar grips; handlebar ends [parts of bicycles]; handlebar ends for bicycles; child seats adapted for bicycles; saddle covers for bicycles; bicycle seat posts; direction indicators for bicycles; bicycle cranks; motors for bicycles; tires for bicycles; tubeless tires for bicycles; wheel rims for bicycles; bicycle wheels; gear wheels for bicycles; sprocket wheels [bicycle parts]; wheels for learning to ride a bicycle; inner tubes for bicycle tires; air pumps for inflating bicycle tires; tools for repairing punctures on bicycle tires; bicycle wheel hubs; sprockets for bicycles; ear box for bicycles; gear shift systems for bicycles; bicycle kickstands; bicycle pedals; support parts for bicycles; bicycle racks for vehicles; luggage carriers for bicycles; dress guards for bicycles; trailers for transporting bicycles; water bottle holders to be worn on bicycles; directional signals for bicycles; saddles for bicycles; backrests [Sissy Bars] for bicycles; bicycle wheel spokes; spoke caps for bicycle wheels; tubeless tires for bicycles; front derailleurs; rear derailleurs. Rental of training simulators for cycling; cycling training; health clubs [health and fitness training] for cycling; conducting online training sessions in the field of physical fitness training related to cycling; sports training with a monitor related to cycling; provision of sports training facilities related to cycling; organization of competitions for training purposes related to cycling; personal trainer services related to cycling; training services related to cycling; physical fitness evaluation services for training purposes related to cycling; providing information regarding physical training on online websites related to cycling.

Abstract

A vehicle includes a stimulus generator whose inputs are at least the mechanical torque (Tm) of the electric motor (M) measured by an estimator (TmE) of the mechanical torque (Tm) of the motor (M), and the velocity (V) measured by an estimator (VE) of the velocity (V) and whose outputs are a velocity control stimulus (VS) and a torque control stimulus (TS) towards the user (U). A vehicle includes a stimulus generator (SG) whose inputs are the power (Pu) measured by the estimator (PuE), and the velocity (V) measured by the estimator (VE) of the velocity (V) and whose output is a forced velocity control stimulus (VFS) that results in the velocity setpoint (V*) of the electric motor (M). Control procedures for these vehicles are also described.

IPC Classes  ?

• B62M 6/45 - Control or actuating devices therefor
• B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• B60L 50/20 - Electric propulsion with power supplied within the vehicle using propulsion power generated by humans or animals

Goods & Services

Computers for use with bicycles; Satellite navigational system for bicycles; Global positioning systems for use with bicycles; Bicycle speedometers; Cyclometers; Sensors for bicycles; Touchscreen sensors for bicycles; Optical position sensors for bicycles; LED position sensors for bicycles; Optical speed sensors for bicycles; Digital sensors for bicycles; Electronic sensors for bicycles; Sensors for measuring instruments for bicycles; Sensors for measuring speed for bicycles; Power testers for bicycles; Distance measuring apparatus for bicycles; Electronic heart rate recorders [other than for medical use] for bicycles; Data recorders for bicycles; distance recording apparatus for cycles; Workout logging software for bicycles; Navigation, guidance, tracking, targeting and map making devices, All the aforesaid goods for bicycles; GPS navigation devices for bicycles; Portable navigation devices for bicycles; Navigation software for bicycles; Software for GPS navigation systems for bicycles; Batteries, electric for bicycles; Rechargeable electric batteries for bicycles; Battery cables for bicycles; Battery adapters for bicycles; battery chargers for bicycles; Bicycle motor controllers; Bicycle motor regulators; Electronic device software drivers that allow computer hardware and electronic devices to communicate with each other for bicycles. Bicycles; Folding bikes; Racing bicycles; Racing bicycles; Sports bicycles; Mountain bikes; Children's bicycles; Touring bicycles; Delivery bicycles; Electric bicycles; Folding electric bicycles; Tandem bicycles; Mountain bikes; Balance bicycles [vehicles]; Audible warning systems for bicycles; Bicycle horns; Bicycle brakes; Hydraulic disc brakes for bicycles; Brake cables for bicycles; Brake levers for cycles; Brake shoes [bicycle parts]; Bicycle chains; Roller chains for bicycles; Drive chains [bicycle parts]; Chainwheels for bicycles; Chain guards for bicycles; Toeclips for use on bicycles; Toe straps for use on bicycles; Pet carriers adapted for bicycles; Baskets adapted for bicycles; Panniers adapted for bicycles; Fitted bicycle covers; Windproof covers adapted for electric bicycles; Structural parts of bicycles; Shock absorbers for bicycles; Suspension systems for bicycles; Drivetrains for bicycles; Bicycle frames; Direction indicators for bicycles; Spindles of bicycles; Bicycle mudguards; Forks [bicycle parts]; Front fork joints [bicycle parts]; Fork crown covers [bicycle parts]; Gears for bicycles; Change-speed gears [bicycle parts]; Bicycle stabilisers; Bicycle handlebars; Bicycle handlebar grips; Bicycle handlebar grips; Handle bar ends [bicycle parts]; Handlebar ends for bicycles; Children’s bicycle seats; Saddle covers for bicycles; Bicycle seat posts; Direction indicators for bicycles; Bicycle cranks; Engines for bicycles; Bicycle tyres; Tubeless tyres for bicycles; Rims for bicycle wheels; Bicycle wheels; Gear wheels for bicycles; Gear wheels [bicycle parts]; Bicycle training wheels; Inner tubes for bicycle tyres; Air pumps for bicycles for the inflation of tyres; Puncture repair outfits for bicycle tyres; Bicycle wheel hubs; Gearboxes for bicycles; Gear boxes for bicycles; gear shifting systems for bicycles; Bicycle kickstands; Bicycle pedals; Stands for bicycles [parts of]; Bicycle racks for vehicles; Luggage carriers for cycles; Dress guards for bicycles; Trailers for transporting bicycles; Water bottle cages for bicycles; Direction indicators for bicycles; Bicycle saddles; Sissy bars for bicycles; Spokes for bicycle wheels; Spoke caps for bicycle wheels; Tubeless tyres for bicycles; Front derailleurs; Rear derailleurs. Rental of cycling training simulators; Training, Relating to the following sectors: Cycling; Cycling health club services [health and fitness training]; Conducting training sessions on physical fitness online, Relating to the following sectors: Cycling; Sports coaching, Relating to the following sectors: Cycling; Providing sports training facilities, Relating to the following sectors: Cycling; Arranging of competitions for training purposes, Relating to the following sectors: Cycling; Personal trainer services, Relating to the following sectors: Cycling; Cycle training services; Physical fitness assessment services for training purposes relating to cycling; Provision of information relating to physical training via an online web site, Relating to the following sectors: Cycling.

Abstract

A bicycle comprising a frame; a handlebar assembly attached to an upper steering tube of the frame in such a way that at least the relative rotation between the two with respect to an upper axis is allowed, but the relative displacements between both in the directions perpendicular to the upper axis are restricted; a fork attached to a lower steering tube of the frame so that it has the same degrees of freedom relative to the lower axis between the fork and the lower steering tube as the degrees of freedom relative to the upper axis between the handlebar assembly and the upper steering tube; and a means for rotation transmission for transmitting at least partially a rotation of the handlebar assembly with respect to the upper tube into a rotation of the fork with respect to the lower steering tube.

IPC Classes  ?

• B62K 25/28 - Axle suspensions for mounting axles resiliently on cycle frame or fork with pivoted chain-stay
• B62K 21/20 - Connections between forks and handlebars or handlebar stems resilient
• B62K 21/08 - Steering dampers
• B62K 25/18 - Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg with single arm on each fork leg for front wheel the arm being pivoted intermediate its ends
• B62K 25/04 - Axle suspensions for mounting axles resiliently on cycle frame or fork

Abstract

A rear derailleur for bicycles comprising an articulated quadrilateral mechanism (10) composed of a base component (11) and a movable component (12,) connected to each other by first (13) and second (14) connector components articulated with respect to components (11) and (12,) a chain tensioner connected to the movable component (12,) and a floating linear actuation unit composed of a base body, articulated with respect to one of the components of the articulated quadrilateral mechanism (11, 12, 13, 14)and a movable body for deforming the articulated quadrilateral mechanism 10, and causing a displacement of the chain tensioner with a main component in direction of the wheel axle, and comprising a power-supply arranged on the floating linear actuation unit and a wireless unit including a wireless receiver, the wireless unit being arranged on the floating linear actuation unit.

IPC Classes  ?

• B62M 9/1242 - Mechanisms for shifting laterally characterised by the linkage mechanisms
• B62M 9/122 - Rear derailleurs electrically or fluid actuatedControls thereof

Abstract

Chain-rings set, for a power transmission system, which includes a chain, a first chain-ring, a second chain-ring where the first chain-ring is formed by a support part of the teeth and a teeth part, where the second chain-ring is formed by segments each formed by a support part of the teeth and a teeth part, which includes axial displacement means of the segments, where an up-shift segment of the segments has a first tooth which is the first which is engaged with the chain in the rotation movement, and where the displacement means are configured for moving the up-shift segment to an engaging position such that the first tooth can engage with an engaging link of the up-shift section of the chain, when the chain is engaged in the small chain-ring, and without the support part of the up-shift segment reaching the same plane than the support part of the first chain-ring, and to successively displace the other independent segments to an engaging position with the chain without the support parts of the independent segments reaching the same plane than the support part of the first chain-ring.

IPC Classes  ?

• B62M 9/10 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like
• B62M 9/12 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable
• B62M 9/00 - Transmissions characterised by use of an endless chain, belt, or the like

Abstract

Chain-rings sets for power transmission systems, where at least one of the chain-rings is formed by independent segments provided with axial displacement means, where the segmentation is optimum both for shifts to a bigger chain-ring or a smaller chain-ring through a relative configuration between chain-rings, especially between the teeth involved in the power transmission during the shift, that ensure a smooth shift, efficient in the power transmission and reducing as possible the friction and the wear of the components.

IPC Classes  ?

• B62M 9/10 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like

Abstract

Chain-rings set for bicycle including a first chain-ring and a second chain-ring, this latter formed by segments, which includes displacement means with axial component of the segments with respect to the first chain-ring such that they can be moved a the chain free zone ZLC and shift the chain among chain-rings, where the axial displacement means are formed by guiding means configured for guiding the segments such that the relative movement of the teeth of the segments with respect to the small chain-ring in its displacement from a first disengagement configuration to a second engagement configuration has a tangential component opposite to the forward direction.

IPC Classes  ?

• B62M 9/14 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like the wheels being laterally shiftable
• B62M 9/10 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like
• B62M 9/12 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable
• B62M 9/04 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio

Abstract

Vehicle comprising a stimulus generator (SG) whose inputs are at least the mechanical torque (Tm) of the electric motor (M) measured by an estimator (TmE) of the mechanical torque (Tm) of the motor (M), and the velocity (V) measured by an estimator (VE) of the velocity (V) and whose outputs are a velocity control stimulus (VS) and a torque control stimulus (TS) towards the user (U). The invention also relates to a vehicle (1) comprising a stimulus generator (SG) whose inputs are the power (Pu) measured by the estimator (PuE), and the velocity (V) measured by the estimator (VE) of the velocity (V) and whose output is a forced velocity control stimulus (VFS) that results in the velocity setpoint (V*) of the electric motor (M). Control procedures for these vehicles are also described.

IPC Classes  ?

• B60L 15/20 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed
• B60L 50/20 - Electric propulsion with power supplied within the vehicle using propulsion power generated by humans or animals

Abstract

Cassette (1) for a bicycle transmission system, which comprises a first sprocket (P1) and a second sprocket (P2) smaller than the first sprocket (P1) and a support structure (S) the sprockets (P1, P2), being the inner edges (CI1, CI2) of the sprockets (P1, P2) configured by grooved surfaces (P11, P21), being the support structure (S) provided with two engagement surfaces (S1, S2) complementary of the grooved surfaces (P11, P21) of the grooved sprockets (P1, P2), such that tangential forces (T) can be transmitted between the sprockets and the support structure (S), comprising the cassette at least a spacer (E1-2, E2-3, E3-4 . . . ) between sprockets (P1, P2), wherein the base line (B2) of the second sprocket (P2) is smaller than the average diameter (D1) of the grooved surface (P11) of the first sprocket (P1), extending the spacer (E1-2) between the first sprocket (P1) and the second sprocket (P2) at least from the grooved surface (P11) of the first sprocket (P1) to at least the base line (B2) of the second sprocket (P2), such that the spacer (E1-2) allows to exert axial forces (A) on the first sprocket (P1).

IPC Classes  ?

• B62M 9/10 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like
• F16H 55/30 - Chain wheels

Abstract

The invention relates to a bicycle (1) comprising a frame (2) defined in a main plane (X), which comprises an upper steering tube (23) defined with respect to the upper axis (a) which is part of the main plane (X), and a lower steering tube (24) defined with respect to the lower axis (β) which is part of the main plane (X) and significantly collinear with the upper axis (a); a handlebar assembly (3) attached to the upper steering tube (23) of the frame (2) in such a way as to permit at least relative rotation between the two with respect to the upper axis (a), but limiting at least the relative movements between the two in directions perpendicular to the upper axis (a); a fork (4) attached to the lower steering tube (24) of the frame (2) in such a way as to have the same relative degrees of freedom with respect to the lower axle (β) between the fork (4) and the lower steering tube (24) as the relative degrees of freedom with respect to the upper axle (a) between the handlebar assembly (3) and the upper steering tube (23); and a turn transmission means (5) for at least partially transmitting a turn of the handlebar assembly (3) with respect to the upper tube (23) into a turn of the fork (4) with respect to the lower tube (24), wherein the vertical flexibility of the frame (2) between the upper steering tube (23) and the lower steering tube (24) is greater than the sum of the vertical flexibility of the handlebar assembly (3) between the point of attachment of the handlebar assembly (3) to the upper steering tube (23) and any other point of the handlebar assembly (3), and the vertical flexibility of the fork (4) between the point of attachment of the fork (4) to the lower steering tube (24) and any other point of the fork (4).

IPC Classes  ?

• B62K 25/04 - Axle suspensions for mounting axles resiliently on cycle frame or fork
• B62K 21/08 - Steering dampers
• B62K 21/20 - Connections between forks and handlebars or handlebar stems resilient

Abstract

Cassette (1) for a bicycle transmission system, which comprises a first sprocket (P1) and a second sprocket (P2) smaller than the first sprocket (P1) and a support structure (S) the sprockets (P1, P2), being the inner edges (CI1, CI2) of the sprockets (P1, P2) configured by grooved surfaces (P11, P21), being the support structure (S) provided with two engagement surfaces (S1, S2) complementary of the grooved surfaces (P11, P21) of the grooved sprockets (P1, P2), such that tangential forces (T) can be transmitted between the sprockets and the support structure (S), comprising the cassette at least a spacer (E1-2, E2-3, E3-4…) between sprockets (P1, P2), wherein the base line (B2) of the second sprocket (P2) is smaller than the average diameter (D1) of the grooved surface (P11) of the first sprocket (P1), extending the spacer (E1-2) between the first sprocket (P1) and the second sprocket (P2) at least from the grooved surface (P11) of the first sprocket (P1) to at least the base line (B2) of the second sprocket (P2), such that the spacer (E1-2) allows to exert axial forces (A) on the first sprocket (P1).

IPC Classes  ?

• B62M 9/10 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like
• B60B 27/02 - Hubs adapted to be rotatably arranged on axle
• B60B 27/04 - Hubs adapted to be rotatably arranged on axle housing driving means, e.g. sprockets

Abstract

The present invention relates to chain-rings 1, 2 sets for power transmission systems, wherein at least one of the chain-rings 2 is formed by independent segments 21, 22, 23, 24, 25, 26 provided with axial displacement means, wherein the segmentation is optimum both for shifts to a bigger chain-ring or a smaller chain-ring through a relative configuration between chain-rings, in especial between the teeth involved in the power transmission during the shift, that ensure a smooth shift, efficient in the power transmission and reducing as possible the friction and the wear of the components. The invention also relates to methods for optimizing both the down-shifts, the up-shifts, or to obtain the best trade-off in the up-shift and down-shift efficiency.

IPC Classes  ?

• B62M 9/10 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like
• B62M 9/12 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable

Abstract

Chain-rings set (1, 2) for bicycle comprising a first chain-ring (1) and a second chain-ring (2), this latter formed by segments (21, 22, 23, 24, 25, 26), which comprises displacement means with axial component of the segments (21, 22, 23, 24, 25, 26) with respect to the first chain-ring such that they can be moved a the chain free zone ZLC and shift the chain (3) among chain-rings, wherein the axial displacement means are formed by guiding means (4) configured for guiding the segments (21, 22, 23, 24, 25, 26) such that the relative movement of the teeth of the segments (21, 22, 23, 24, 25, 26) with respect to the small chain-ring (1) in its displacement from a first disengagement configuration to a second engagement configuration has a tangential component opposite to the forward direction.

IPC Classes  ?

• B62M 9/14 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like the wheels being laterally shiftable
• B62M 25/08 - Actuators for gearing speed-change mechanisms specially adapted for cycles with electrical or fluid transmitting systems

Abstract

Chain-rings set (1, 2), for a power transmission system, which comprises a chain (3), a first chain-ring (1), a second chain-ring (2) wherein the first chain-ring (1) is formed by a support part (S1) of the teeth and a teeth part (T1), wherein the second chain-ring (2) is formed by segments (21, 22, 23, 24, 25, 26) each formed by a support part (S21, S22, S23, S24, S25, 26) of the teeth and a teeth part (T21, T22, T23, T24, T25, T26), which comprises axial displacement means of the segments (21, 22, 23, 24, 25, 26), wherein an up-shift segment (21) of the segments (21, 22, 23, 24, 25, 26) has a first tooth (21-1) which is the first which is engaged with the chain (3) in the rotation movement (Rot), and wherein the displacement means are configured for moving the up-shift segment (21) to an engaging position such that the first tooth (21-1) can engage with an engaging link (3-1) of the up-shift section (31) of the chain (3), when the chain (3) is engaged in the small chain-ring (1), and without the support part (S21) of the up-shift segment (21) reaching the same plane than the support part (S1) of the first chain-ring (1), and to successively displace the other independent segments (22, 23, 24, 25, 26) to an engaging position with the chain (3) without the support parts (S22, S23, S24, S25, S26) of the independent segments reaching the same plane than the support part (S1) of the first chain-ring (1).

IPC Classes  ?

• B62M 9/10 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like
• B62M 9/12 - Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable