Matches 1 - 50 out of 105 1 2 3 >


Match Document Document Title
US20110067523 Pedal shaft for bicycles  
A pedal shaft for bicycles with elbow-shaped cams allows the dead centre of the pedaling motion to be cancelled out, thus resulting in more power with less exertion.
US20110120262 Crankarm and crankset comprising same  
A crankset comprises an axle assembly, a removably attached crankarm, and a non-removably attached crankarm. The removably attached crankarm is attached at a first end portion thereof to a first...
US20110011201 Bicycle Bottom Bracket Assembly That Is Assembled Closely and Tightly  
A bottom bracket assembly for a bicycle includes a bottom bracket, two axles mounted on the bottom bracket and two cranks each having a mounting tube mounted on the respective axle. Each of the...
US20140069229 BIKE EXTENDABLE CRANK  
A bike extendable crank includes an extendable crank unit. The extendable crank unit includes an immovable crank and a movable crank. The immovable crank has a slide trough therein, a limit groove...
US20140360314 CRANKSET AND BOTTOM BRACKET ASSEMBLY  
A crankset and bottom bracket assembly for a bicycle having a spindle. The crankset and bottom bracket assembly comprising a first crank. The first crank comprising a first ratchet mechanism...
US20070227294 Bicycle crank arm assembly and related elements  
A bicycle crank arm assembly is disclosed, comprising a crank arm having a first end for coupling with a bottom bracket assembly and a second end for coupling with a pedal, at least one of the...
US20090056496 Composite Crank Assembly  
A crank assembly formed as a unitary composite structure, the crank arms and crank shaft being hollow to provide maximum weight reduction, the crank arms being over-sized to provide the necessary...
US20050199092 Insert for a bicycle pedal crank, pedal crank comprising such an insert and methods suitable for making such an insert and such a pedal crank  
An Insert for a bicycle pedal crank is provided. The insert is made from unidirectional structural fibers incorporated in a polymeric material and coupled according to two distinct directions. The...
US20080314193 CRANK ARM ASSEMBLY AND RELATED CRANK ARM AND ELEMENT FOR TRANSMITTING TORQUE FROM THE CRANK ARM TO A BICYCLE CHAIN  
A crank arm assembly for a bicycle, comprising a crank arm and an element for transferring torque from the crank arm to a bicycle chain. The crank arm (and the element for transferring torque...
US20050022626 Modular configuration for pedal drive systems by means of independent cranks with no dead center  
Mechanical improvement consisting of providing with a modular configuration a pedaling system without cycle dead centers based on independent cranks that by means of links moves a power plate...
US20140047948 CRANKARM AND CRANKSET COMPRISING SAME  
A crankset comprises an axle assembly, a drive-side crankarm, and a non-drive crankarm. The drive-side crankarm is attached at a first end portion thereof to a first end portion of the axle...
US20080245180 ASSEMBLY STRUCTURE OF TREADING CRANK AND SPINDLE TUBE OF THE BIKE  
The invention relates to an assembly structure of treading crank and spindle tube of the bike; wherein circularly set several convex straight ribs, with even intervals, on the inner surface of the...
US20050011304 Crank structure of bicycle  
A crank structure includes a main body, a crank shaft, and a composite material layer. In assembly, after the crank shaft is mounted on the main body in a close fit manner, the composite material...
US20060053962 Retainer of spindle tube device  
A retainer assembly of a spindle tube device comprises: a crank having a through hole; a spindle tube connected to the crank through a washer; the spindle tube being inserted into the through hole...
US20080276754 Easy crank  
In combination with a crank assembly, the improvement comprising an apparatus for improving operation of the crank assembly. The apparatus includes an elongated extension member having each of a...
US20070137426 Crank assembly for a bicycle bottom bracket assembly, shaft and crank arm thereof  
A crank assembly for a bicycle's bottom bracket assembly comprises a shaft extending along a longitudinal axis, at least one crank arm associated with at least one free end of said shaft, first...
US20070283781 BICYCLE CRANK ARM ASSEMBLY  
A bicycle crank arm assembly is provided having at least one axle portion, a crank arm mounted on the at least one axle portion, the crank arm having a coupling seat and the axle portion a...
US20050178236 Fastening inserts for cycle parts and especially pedal crank and crank gear parts  
A fastening insert for cycle parts and especially pedal crank and crank gear parts, is composed of two parts, namely a lower insert and an upper insert, which are arranged to be joined together...
US20070137425 Asymmetrical coupling profile between a central axle of a bottom bracket of a bicycle transmission and a pedal crank  
A coupling profile is provided having in a plane transversal to an axis (X) of the bottom bracket, outer arcs belonging to the same outer circumference of the coupling, each of such outer arcs...
US20100018345 INTEGRALLY CAST BICYCLE CHAIN TRANSMISSION  
The chain transmission includes a crank connected to a second crank by an axle of the chain transmission while forming one piece of a single support. The chain transmission axle is housed in a...
US20060288818 Attachment group of a pedal crank to the central axle of a bottom bracket of a bicycle transmission  
A bicycle attachment group having the axial position of a pedal crank to an axle, having an axis X, defined precisely by the abutment surface of the axle and of the abutment surface of the pedal...
US20070199403 Bicycle pedal crank, intermediate product and method for manufacturing such a pedal crank  
A bicycle pedal crank has an elongated body and a first end portion with a first seat for coupling with a bottom bracket of the bicycle, a second end portion with a second seat for coupling with a...
US20070295154 CRANKSET ASSEMBLY FOR A BICYCLE  
A crankset that includes a first crank, a second crank, a first spindle portion, a second spindle portion, and an attachment assembly. Each of the first crank and the second crank include an end...
US20140157948 CRANK DETACHABLE HOLDER  
A crank detachable holder is provided with a crank arm attachment part and a holding part. The crank arm attachment part has a mounting opening dimensioned to receive a bolt for connecting the...
US20060186630 Effort-saving bicycle and transmission crank  
This invention provides an effort-saving bicycle and transmission cranks comprising: a frame; two wheels pivotably disposed respectively on a front side and rear side of a lower portion of the...
US20050011303 Bicycle crank with flatter cross section  
A bicycle crank includes a connection end for being connected to an axle of bottom bracket and a remote end for being connected to a pedal. The remote end extends off from a longitudinal axis of...
US20050011302 Pedal shaft structure of a bicycle having a second pedaling function  
A pedal shaft structure of a bicycle having a second pedaling function is proposed. A shaft tube of the bicycle has a braking unit and a shaft. Pedals are arranged at two ends of the shaft through...
US20100242668 BICYCLE WITH A BEARING  
A bicycle (1) with a bearing (126) including at least one plain bearing bush (126a). The at least one plain bearing bush (126a,) is provided to absorb the radially acting forces. At least one...
US20060075846 Bicycle crank and method for manufacturing the same  
A bicycle crank and a method of making a bicycle crank is provided. The bicycle crank has an elongated core with first and second ends, first and second inserts arranged on the ends of the core,...
US20070151410 Shaft element and crank arm of a bicycle bottom bracket assembly, crank arm assembly comprising such a shaft element and crank arm and method for assembling the crank arm assembly  
A shaft element of a bottom bracket assembly of a bicycle has a first end portion having a first coupling with another shaft element and a second end portion having a second coupling with a crank...
US20070204721 Bottom bracket assembly of a bicycle  
A bottom bracket assembly of a bicycle comprises two cranks, an axle integral in rotation with the cranks, and two bearings for the rotatable support of the assembly with respect to a box of the...
US20120238410 APPARATUS, SYSTEM, AND METHOD FOR CYCLE IMPROVEMENTS  
A cycle with tapered drivetrain connections. The cycle includes a frame, a crank rotatably connected to the frame, and a driven wheel rotatably connected to the frame. The crank includes a crank...
US20070186719 Bicycle crank arm, intermediate product and method for manufacturing such a crank arm  
A bicycle crank arm has an elongated body and a first end portion with a first seat for coupling with a bicycle bottom bracket assembly, a second end portion with a second seat for coupling with a...
US20120013100 Shock absorption system for bicycle frame and components  
A shock absorption system for a bicycle that is simple, flexible and compatible with the many sections of a bicycle where adequate shock absorption is sought. The shock absorption properties are...
US20090145262 BOTTOM BRACKET ASSEMBLY FOR A BICYCLE AND SHAFT FOR SUCH AN ASSEMBLY  
A bottom bracket assembly (1) of a bicycle is disclosed. The bottom bracket assembly includes a shaft (2) extending along a predetermined longitudinal direction and a pair of bearings (31, 41)...
US20100326233 BICYCLE CRANK ASSEMBLY  
An improved bicycle crankshaft assembly, including a crank axle with an axial axial axis, a first axle end, and a second axle end axially opposed to the first axle end; a first crank arm connected...
US20060033305 Cycle crank  
A crank comprises two components, a crank body and a protective shield arranged to be assembled and connected together in a male-female configuration defining respective bearing, counter-bearing...
US20140217695 Crank Assembly  
This invention provides a novel solution for an optimally powered crank for a human-powered vehicle, such as a bicycle. This invention includes a novel system and method to optimize the length of...
US20130247712 CRANK MECHANISM  
It is a kind of crank mechanism that consists of a crank and a link. There are two key parts: one is a crank, it is to do a revolving motion; another is a link, it is to draw the crank. The...
US20080202284 RIGHT CRANK ARM ASSEMBLY FOR A BICYCLE AND CRANK ARM AND FRONT SPROCKET  
A right crank arm assembly for a bicycle, comprises a right crank arm and at least one front sprocket coupled with the crank arm at at least one coupling portion of the crank arm. The front...
US20070137424 Bicycle bottom bracket assembly  
A bicycle bottom bracket assembly has a crank axle, a pair of bearing units and a pair of retaining clips. The bearing units are configured to be mounted in a tubular hanger part or bottom bracket...
US20050229741 Highly efficient pedal crank for bicycles  
The present invention relates to a highly efficient pedal crank for bicycles, comprising an elongated body defining, at one end portion thereof, coupling means for coupling the pedal crank to a...
US20100089193 PROPULSION MECHANISM WTIH TWO INDEPENDENT ACTUATORS  
The present invention relates to a propulsion mechanism provided with two independent actuators, the first actuator being connected via a first connection member CD to a first converter ED, RLD...
US20070261515 Bicycle bottom bracket axle, bearing assembly and crank mounting arrangement  
Referring to FIG. 4 a bottom bracket axle and crank mounting system includes a bottom bracket axle 34 inserted through a bottom bracket 33, two ball bearing assemblies 35 mounted on the axle 34...
US20050217417 Bicycle crank arm  
A bicycle crank arm is provided that is a light, highly strong, highly rigid and highly designed in a complex shape. The bicycle crank arm has a crank axle mounting end portion, a central crank...
US20140109722 BOTTOM BRACKET ASSEMBLY OF A BICYCLE AND LEFT CRANK ARM ASSEMBLY THEREOF  
A bicycle bottom bracket assembly that reduces the accumulation of dirt and/or corrosive substances inside the shaft extending between the crank arms of the assembly. The bottom bracket assembly...
US20150007688 CRANK ARM  
A crank arm is provided, which includes a first connecting member and a second connecting member used for joining the first connecting member. The first connecting member has a first wall surface,...
US20060101941 Bicycle crank axle assembly  
A bicycle crank axle assembly is mounted on a hanger part of a bicycle frame and includes first and second bearing housings, first and second bearings, a crank axle and a fixed member. The first...
US20070034043 Bicycle component of composite material with inserts and relative manufacturing process  
A bicycle component is made of composite material provided with at least one insert for coupling with another bicycle component, as well as a process for its manufacture. Before the molding...
US20140144285 BICYCLE CRANK AXLE ASSEMBLY  
A bicycle crank axle assembly has first and second crank arms that are attached to opposite ends of a crank axle. The ends of the crank axle are non-rotatably disposed in axle mounting openings of...

Matches 1 - 50 out of 105 1 2 3 >