Matches 1 - 44 out of 44


Match Document Document Title
US20150000460 Crank Arm Spider Improvement for Attaching Ovoid Chainrings  
Crank arm spider adjustment orientation system to provide different angular orientations in the attachment of at least an ovoid chainring, comprising an ovoid chainring (3) and a spider (1), both...
US20110174110 BOTTOM BRACKET  
A bottom bracket, which has a shaft, a first pedal crank, which is connected in a rotationally fixed manner to the shaft, a second pedal crank, which is connected in a rotationally fixed manner to...
US20130139642 Chainring  
A solitary chainring of a bicycle front crankset for engaging a drive chain, including a plurality of teeth formed about a periphery of the chainring, the plurality of teeth consisting of an even...
US20110159751 Pedal propulsion system  
A pedal propulsion system for a transportation conveyance comprises a pedal drive assembly having a teethed synchronous drive belt engaged between a drive sprocket and a transfer sprocket. The...
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...
US20140157949 CRANKSET FOR A BICYCLE  
A bicycle crankset including a first crank and a second crank, and a spider that secures at least one chain ring to the crankset Each of the first crank and the second crank has an end adapted to...
US20150114172 Crank Systems and Methods  
A crank system of the present disclosure has a first crank assembly that is coupled to a first end of a first axle and coupled to a first pedal. The crank system further has a second crank...
US20150114171 Crank Systems and Methods  
A crank system of the present disclosure has a rotating bar that is fixedly coupled to a first end of a first axle and for actuating a wheel, a first crank assembly coupled to the first end of the...
US20130087013 BICYCLE SPROCKET  
A bicycle sprocket is provided that includes an external peripheral edge part and an internal peripheral edge part. The external peripheral edge part has a plurality of metal sprocket teeth. The...
US20130233127 RIGHT CRANK ARM ASSEMBLY FOR A BICYCLE  
A right crank arm assembly for a bicycle has a right crank arm and at least one toothed crown that is coupled to the right crank arm. At least one damping element is arranged between the right...
US20100051373 Driving mechanism for the motorized bicycle  
A driving mechanism for motorized bicycle is provided. The driving mechanism comprises a motor driving transmission device, a front driving sprocket and a pedal driving transmission device. The...
US20080190238 Multipurpose transmission mechanism for bicycle  
A transmission mechanism is used in a bicycle having a frame. The transmission mechanism includes a quick assembly device including a central shaft, threaded collars, and a clip bracket, which is...
US20130087012 BICYCLE CRANK ASSEMBLY  
A bicycle crank assembly is provided with a first sprocket, a second sprocket, a crank arm, a sprocket fixing structure and an alignment tube. The first sprocket includes a plurality of first...
US20150191214 BICYCLE CRANK ASSEMBLY  
A bicycle crank assembly includes a crank arm and at least one sprocket. The sprocket includes a set of regular teeth and a set of first and second teeth. The first teeth have a first chain...
US20130091982 TRACTION SYSTEM USING A DOUBLE-CRANK ALTERNATING CYCLE  
Double crank alternating cycle traction system in which two independent free-turning cranks with a dynamic articulation at the place where the force is applied are strategically added to a...
US20070295157 CRANKSET ASSEMBLY FOR A BICYCLE  
A crankset including a first crank and a second crank and a spindle. Each of the first crank and the second crank includes an end adapted to engage a pedal. The spindle includes a first end...
US20100050810 BICYCLE GEAR CRANK  
A bicycle gear crank that allows easy and proper circumferential position adjustment of the gear plate with respect to the crank arm. The bicycle gear crank includes a crank arm having a base end...
US20140013900 BICYCLE FRONT SPROCKET  
A bicycle front sprocket has a sprocket body and a chain engagement structure. The sprocket body has a center rotational axis, a first side surface and a second side surface. The second side...
US20130340565 BICYCLE CRANK SET  
A bicycle crank set is comprising a crank having at least one support portion protruding therefrom, a first lateral surface, a second lateral surface opposite to the first lateral surface; a first...
US20140338494 BICYCLE SPROCKET AND BICYCLE CRANK ASSEMBLY  
A first sprocket is capable of engaging with a chain. The first sprocket has a first sprocket main body, a plurality of teeth disposed along a circumferential direction on the radially outer side...
US20150082939 BICYCLE CRANK ARM AND CHAINRING CARRIER ASSEMBLY  
A bicycle crank arm and chainring carrier assembly. The assembly includes a crank arm. A chainring carrier is sized and shaped to connect to the crank arm. A first pairing feature is formed on one...
US20130291678 RIGHT CRANK ARM ASSEMBLY FOR A BICYCLE AND CRANK ARM AND FRONT SPROCKET THEREOF  
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...
US20150096408 Dual-Drive Hub Device  
A dual-drive hub device is mounted on a rear wheel of a bicycle and has a hub, a main shaft mounted through the hub, and two rear pedals connected to the main shaft. At least one one-way bearing...
US20130205945 PEDAL FORCE SENSOR AND ELECTRICALLY-ASSISTED VEHICLE USING SAME  
Provided is a pedal force sensor which, in pedal force detection utilizing an elastic body, can detect pedal force over a wide range and reduce detection errors originating from variation in the...
US20150007689 SPROCKET FOR BICYCLE  
In a sprocket for a bicycle having a radial bearing acting as a bearing portion, an axial load acting on the bearing can be easily adjusted without having to dismount the components of the bicycle...
US20150090071 CRANK ASSEMBLY OF A SHAFT DRIVEN BICYCLE  
A crank assembly of a shaft driven bicycle includes a crank arm pivoted to an axis of a bicycle frame for arranging pedal. The crank arm has at least one main transmission gear to be engaged with...
US20120042746 BICYCLE CRANK ASSEMBLY  
A bicycle crank assembly is provided that basically provided with a crank arm that includes a first outer shell, a second outer shell, a first axle supporting member and a second axle supporting...
US20130008282 FLOATING FRONT RING  
A bicycle transmission system is provided herein. The bicycle transmission system includes a sprocket or ring that is capable of sliding amongst an infinite number of lateral positions relative to...
US20110126666 CRANK SET FOR A BICYCLE  
A crank set for a bicycle includes a crankshaft having a drive side shaft end part (3) and a non-drive side shaft end part (4), bearings (1, 2) for mounting the crankshaft rotatable in a bottom...
US20140157951 SELF LOCKING BEARING PRELOAD ADJUSTER  
A bearing preload adjuster for a bicycle crank set and bottom bracket comprises an adjustment ring for coupling with a bicycle crank arm, a movable plunger comprising an external thread for...
US20120167709 Length adjustable bicycle crank  
A crank system mounted to a drive sprocket of a bicycle includes a crank arm secured to the drive sprocket and disposed at both sides thereof, the crank arm having two bent ends; and two...
US20140196569 COMPOSITE BICYCLE COMPONENT  
A composite bicycle component includes a first member made of a metallic material. The first member has a surface with a first dimple. The first dimple includes a second dimple that is formed on...
US20110121536 RETRACTABLE/EXTENDABLE CRANK USING A CYLINDRICAL CAM, AN END CAM, OR A SWASH PLATE CAM, AND BICYCLE USING THE SAME  
The present invention relates to a mechanical element, and more particularly, to a crank connected to a bicycle pedal or a handle for rotating a rotary body and to a bicycle using the same. The...
US20130098197 Crank Assembly for Acrobatic Bicycle  
A crank assembly for an acrobatic bicycle includes a mandrel, two cranks, a chainwheel, and a connector. The chainwheel has a shaft hole and a fixing hole. The connector has a mounting hole and a...
US20140157950 Synchronously Controlling Device for a Bicycle  
The present invention is directed to a device for synchronously actuating at least two independent controlled apparatuses at two sides of the bottom bracket of the bicycle through a driving...
US20110290069 Connecting and adjusting structure for a crank assembly  
A connecting and adjusting structure for a crank assembly used in a bicycle contains a first tube of a first connector including a first hollow portion, the first connector including a first...
US20170167542 BICYCLE CRANK ASSEMBLY  
A bicycle crank assembly includes a sprocket having a rotational center axis, a crank, a crank axle and a slide mechanism. The crank axle is attached to the crank and includes an internal space....
US20160368561 BICYCLE CRANK ASSEMBLY  
A bicycle crank assembly has a sprocket, a first crank arm, a second crank arm and a crank axle, A first axial distance is defined between the first pedal attachment surface and the second pedal...
US20160347404 Transmission System for a Bicycle  
A transmission system includes a hub unit and a crankshaft for being respectively mounted to seat stays and a bottom bracket of a bicycle, a transmission unit and an engaging unit. The...
US20160272276 DEVICE FOR BICYCLES OR OTHER VEHICLES DRIVEN BY PEDALS OR HANDLES  
The present invention concerns a device (1) for bicycles or other pedal-powered vehicles, fitted with at least one crank (3) that has a pedal at one end (2) and a box on the other (4), with said...
US20160244122 BICYCLE DRIVING DEVICE  
A bicycle driving device including a shaft rotatably mounted on a part of a body frame; two crank arms perpendicularly disposed at both ends of the shaft so as to be symmetrical with each other at...
US20160046351 DRIVE ASSEMBLY AND EXERCISE APPARATUS INCLUDING A DRIVE ASSEMBLY  
There is provided a drive assembly for converting the motion of a person running or jogging into mechanical motion to drive a machine or apparatus, such as self propelled apparatus like a bicycle,...
US20160031523 BICYCLE CRANK ASSEMBLY  
A bicycle crank assembly comprises a crank axle, a first crank arm, and a battery holding structure. The crank axle comprises a cavity and a first end portion. A battery unit is to be provided in...
US20150274253 BICYCLE CRANK ASSEMBLY  
A bicycle crank assembly having a rotational center axis is basically provided with a crank member and a sprocket member. The crank member includes a support portion that extends in the axial...

Matches 1 - 44 out of 44