Patent application number | Description | Published |
20090236777 | Method for Manufacturing Bicycle Crank - A method for making a crank of a bicycle includes preparing a prepreg material and a bladder, heat-pressing the prepreg material and the bladder, cutting the prepreg material and the bladder to form two engaging sections to engage with two connectors, wrapping a carbon-fiber cloth, and heating the prepreg material and first and second connectors that is wrapped by the carbon-fiber cloth. | 09-24-2009 |
20090243160 | Bicycle Cranks Composed of Composite Material and Metal Parts and Method for Making the Same - A method for making a crank of a bicycle includes preparing a first prepreg material and a second prepreg material, a first connector and a second connector, and a bladder in a mold insert. The first and second connectors are separated from each other. The first and second connectors are buried in the first prepreg material and includes an extension extended between the first and second connectors. The bladder is curved around the first prepreg material. The first prepreg material, the first and second connectors are buried in the second prepreg material. Then, heat-pressing the first and second prepreg materials, the first and second connectors, and the bladder. | 10-01-2009 |
20100099530 | Bicycle Cogset - A cogset, which is adapted to connect to a rotatable hub of a bicycle, includes first, second and third cog assemblies. Each cog assembly has at least one cog with which a chain on the bicycle selectively engages in response to bicycle speed changes. Additionally, the first and third cog assemblies have structural contacts with the connected hub of the bicycle, whereas the second cog assembly does not have any structural contact with the connected hub, but the second cog assembly is retained between the first and third cog assemblies in order to connect it to the hub and enable it rotate with the hub stably. | 04-22-2010 |
Patent application number | Description | Published |
20080312016 | Light weight Chain Wheel Having Concrete Structure - A chain wheel comprises a chain wheel body formed with a plurality of combining holes for assembly a crank of a bicycle and a plurality of through holes for riveting so that the chain can be engaged with different chain wheel body for speed change; the chain wheel body including an outer periphery and an inner periphery; the outer periphery being formed with a teeth portion with a plurality of tooth for engaging with a chain; a coarse portion formed at a back surface of the chain wheel body; and a combining portion covering upon a part of the outer periphery and both at the front surface and back surface of the chain wheel body; the combining portion being extended through the inner periphery so as to be combined as an integral body at both the front surface and back surface of the chain wheel body. | 12-18-2008 |
20090111624 | FRONT SPEED CHANGE DEVICE - A front speed change device comprises a base, a first linking rod, a second linking rod and a chain guide unit. The body serves to fix the body to a seat tube. The first linking rod has one end pivoted to the base and another end thereof is pivoted to the chain guide unit. The second linking rod has one end pivoted to the base and another end thereof is pivoted to the chain guide unit. The chain guide unit includes an outer guide sheet and an inner guide sheet. Two ends of the outer guide sheet are connected to the two ends of the inner guide sheet. A receiving body is formed therebetween for receiving a chain; and the outer guide sheet is formed with a first end surface, a second end surface, a third end surface and a fouth end surface. | 04-30-2009 |
20100009794 | SPROCKET ASSEMBLY - A sprocket assembly includes a first sprocket set having multiple first bores defined therein. A second sprocket has multiple second bores defined therein. A supporter has multiple first fastening bores defined therein and multiple second fastening bores defined therein. The first sprocket and the second sprocket are respectively fixed on two opposite sides of the supporter. Each of the first protrusions is fixed on a corresponding one of the first fastening bores. Each of the second protrusions is fixed on a corresponding one of the second fastening bores. | 01-14-2010 |
20100022335 | CHAIN GUIDER OF A FRONT DERAILLEUR - A chain guider of a front derailleur includes an inner plate having an inverted L-shaped connecting structure integrally extending therefrom and an outer plate mounted on the connecting structure. The inner plate is made of metal and the outer plate is made of carbon fiber. The connecting structure includes a top plate and a side plate. The side plate is adhered to the outer plate. | 01-28-2010 |
Patent application number | Description | Published |
20090069135 | SPROCKET OF BICYCLE WITH SPECIAL DESIGNED TOOTH - A sprocket wheel of a bicycle comprises a large sprocket having a plurality of teeth; a small sprocket having a plurality of teeth; and a chain. For each tooth of the large sprocket and small sprocket, a first lateral side of the tooth has a first edge line at a top end thereof; the first lateral side is cut inwards from to form as a notch; the notch is a cambered surface and a lower side of the notch is confined by a second edge line. In assembly, the first lateral side of the large sprocket is placed to be adjacent to a small sprocket so as to reduce interferences and noises in driving. The topside of the tooth has the first edge line and a third edge line; and the topside of the tooth is an inclined to a wheel surfaces. | 03-12-2009 |
20090121451 | SEAT SUPPORT STRUCTURE OF A BICYCLE - A seat support structure of a bicycle comprises a seat supporting tube; a seat supporting rod received in the seat supporting tube; a lower lateral side of the seat supporting rod having a first inclined surface; the seat supporting rod being formed with an upper hole and a lower tapered hole; a tightening assembly received in the seat supporting tube; the tightening assembly having a tightening unit, an embedding unit; and a stud; in assembly, a screw post of a stud passes through the upper hole, the lower tapered hole, the stud hole of the tightening assembly and the embedding hole of an embedding hole so as to combine the tightening assembly to the seat supporting rod; then the seat supporting rod and the tightening assembly are placed within the seat supporting tube. | 05-14-2009 |
20090127922 | BICYCLE HUB - A bicycle hub comprises a central tube having an axial receiving groove for installing an axial shaft of a wheel; a first peripheral disk formed at one end of the central tube; a second peripheral disk formed at another end of the central tube; the second peripheral disk being formed with a plurality of axial insertion holes for receiving radiation spokes; a peripheral of the second peripheral disk being formed with a plurality of ribs; each rib having a penetrating axial installing hole; and each rib of the first peripheral disk having a positioning groove; two ends of the positioning groove being opened at two lateral sides of the rib so as to form the openings; the positioning groove being approximately transversal to an axial direction of the installing hole and a lower side of the installing hole is opened to the positioning groove. | 05-21-2009 |
20090243250 | BICYCLE SPROCKET ASSEMBLY - A bicycle sprocket assembly comprises a first sprocket unit formed in one piece, a second sprocket unit formed in one piece and being hollow inside, and a third sprocket unit formed in one piece. The first sprocket unit includes at least one sprocket and a first protrusion. The second sprocket unit includes at least two sprockets with different outer diameter, a first recess formed in a side of the larger outer diameter sprocket and a second recess formed in a side of the smaller outer diameter sprocket. The third sprocket unit includes at least one sprocket and a second protrusion. In assembly, the first protrusion of the first sprocket unit engages with the first recess of the second sprocket unit and the second protrusion of the third sprocket unit engages with the second recess of the second sprocket unit. | 10-01-2009 |
20120133107 | BICYCLE SEAT POST - A bicycle seat post includes a head for mounting with a seat, and a tubular body extending downwards from the head and having a hollow portion at a periphery thereof for insertion of a seat tube. Thus, the bicycle scat post can offer a flexible structure to increase the effective contact area between the tubular body and the seat tube, such that the bicycle seat post can be thinly fixed to the seat tube for enhancing the structural stabilization. | 05-31-2012 |