Matches 1 - 50 out of 63 1 2 >


Match Document Document Title
US20080073467 CONTINUOUSLY VARIABLE DRIVETRAIN  
Drivetrains and frames for vehicles, equipment, machines, etc. Some embodiments of the drivetrains and frames are particularly suited for human powered machines, such as bicycles and exercise...
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...
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...
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,...
US20080034919 HOLLOW CRANK ARM FOR A BICYCLE AND PROCESS FOR MANUFACTURING THE SAME  
A hollow crank arm for a bicycle comprising a body of elongated shape, at the ends of which are formed, respectively, an area for connection of the bottom bracket spindle and an area for...
US20060169098 Bicycle crank and method for manufacturing said crank  
A bicycle crank having a casing with first and second ends and a laminated construction of structural fibres incorporated in a thermosetting resin is presented The crank also has first and second...
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...
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...
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...
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...
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...
US20060101940 Bicycle crank cover assembly  
A cover for a bicycle crank having an axle mounting boss is provided. The cover includes first and second connected members and includes a space between the cover and the axle mounting boss.
US20050022625 Bicycle crank arm  
A bicycle crank arm is provided that makes it possible to notice the wear of a bicycle crank arm easily. The bicycle crank arm has a first end portion to which a bicycle crank shaft is mounted and...
US20150266541 CRANK ARM FOR A BICYCLE PEDAL CRANK SYSTEM AND A METHOD FOR ITS PRODUCTION  
A crank arm for a bicycle crank arm system has an elongated hollow core (30) made of a first fiber-reinforced plastic and having, in the final assembly position of the pedal crank system, 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...
US20070227293 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...
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...
US20060112780 Bicycle crank axle bearing assembly  
A bicycle crank axle bearing assembly includes a pair of first and second axle support members, a pair of first and second bearings and a lock nut. The first and second axle support members...
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...
US20050204860 Bicycle pedal and crank apparatus  
A pedal with a shaft fixed to the pedal body instead of a spindle that turns relative to the pedal body. The shaft is fixed relative to the pedal body. The pedal shaft rotates relative to the...
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...
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...
US20070186718 Bicycle cranks composed of composite material and metal parts and method for making the same  
A bicycle crank includes a hollow body made by composite material and two metal connection members are connected on two ends of the hollow body. A mold includes an elongate cavity and two metal...
US20050081678 Bicycle crank assembly  
A crank assembly comprises an axle with at least at one end thereof an engagement section, the engagement section comprising a central bore with a first inner threaded section. The engagement...
US20110239815 DRIVE DEVICE COMPRISING A DRIVE SHAFT AND DRIVING CRANKS  
A drive device for a machine, which has a drive shaft that can be rotated about an axis, and two driving cranks which are connected to the shaft in an angularly rigid manner in relation to the...
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...
US20140319797 QUICK-RELEASE BICYCLE CRANK ASSEMBLY  
A quick release bicycle crank assembly for a bicycle allows installation and removal of cranks from a crankset without the use of tools. The quick release mechanism has a coupling and a spindle...
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...
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...
US20150329170 CRANKSHAFT DEVICE FOR BICYCLE  
[Object] To provide a full float type crankshaft device for bicycle which allows a sub-assembly formed by integrating crankshafts to be mounted on a body side. [Constitution] The crankshaft device...
US20100275724 INSERT FOR BICYCLE CRANK ARM  
A crank arm is provided, having a body made of a composite material, the body defining two apertures, each aperture defining a plurality of recesses. Each of the recesses extends outwardly a...
US20100167881 Crank mechanism and bicycle incorporating same  
A crank mechanism useful on a bicycle or an exercise machine utilizing a pair of crank arms. A crank arm is attached to a crankshaft so that it can turn the crankshaft in either direction but is...
US20090151509 Bicycle crank assembly  
A bicycle sprocket crank assembly is comprised of first and second crank arms joined to a spindle. One of the crank arms and the spindle may be fabricated as a unitary structure, or both cranks...
US20070296155 Seal Arrangement, Bicycle Pedal Crank Bearing and Bicycle Hub with Seal Arrangement  
The sealing arrangement of a bicycle comprises the following features: a first element which extends in the axial direction; a second element which extends in the axial direction and at least...
US20060283288 Insert for bicycle component and bicycle component incorporating such an insert  
An insert for a bicycle component has a body with an outer surface for the coupling with the bicycle component. The outer surface has at least one first element that provides a first response to...
US20100317475 CHAIN GUIDE MOUNT FOR A BICYCLE  
A chain guide mount is adapted to be attached on a bicycle having a frame including a bottom bracket shell. A bottom bracket sleeve is position in the shell, and the sleeve includes a first...
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...
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...
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...
US20110011202 Bicycle crank  
A bicycle crank comprises an L-type left crank and an L-type right crank. The L-type left/right cranks are respectively and integrally composed of a crank and a connection head, and includes a...
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...
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...
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...
US20120186388 Crank mechanism for bicycles  
A crank mechanism for bicycles, in particular racing bicycles on roads, unpaved roads or tracks, includes a winch rod, pedaling members coupled with an end of the rod, and an arm of a connecting...
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...
US20070089560 Crank axle drive structure for bicycle  
A crank axle drive structure for a bicycle includes a bottom bracket having inner teeth, a crank axle rotatably mounted in the bottom bracket, at least one drive gear rotatably mounted on the...
US20120304810 FLEXIBLE BICYCLE CRANK  
Spindles and cranks for bicycles are disclosed herein. An embodiment of a spindle comprises a first spindle portion comprising a first end and a second end. The first end is substantially opposite...
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...
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...
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...

Matches 1 - 50 out of 63 1 2 >