Integrated-type spoke structure, manufacturing method thereof, wheel assembly for bicycle having the same and manufacturing method thereof
AssigneeMando Corporation
InventorsChang Bok KO, Jeong Rae KIM
Life of this patent
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Abstract
An integrated type spoke structure, a wheel assembly for a bicycle having the same, and a manufacturing method thereof, the integrated type spoke structure for a spoke coupled to a rim, the spoke including a reinforcing member provided at an end portion of the spoke formed of plastic, and a hub provided at a center of the spoke, wherein the reinforcing member and the hub are formed of material having rigidity larger than a rigidity of the spoke, and are integrally formed with each other through an injection molding.
Claims10
An integrated-type spoke structure of a spoke coupled to a rim, the integrated-type spoke structure comprising:
- a reinforcing member provided at an end portion of the spoke formed of plastic;
- and
- a hub provided at a center of the spoke,
- wherein the reinforcing member and the hub are formed of material having rigidity larger than a rigidity of the spoke, and are integrally formed with the spoke through an injection molding.
A wheel assembly for an electric bicycle, the wheel assembly comprising:
- a rim provided in a ring shape and having a rubber wheel installed at an outer circumferential surface thereof;
- and
- a spoke formed as an integral body provided with a plurality of support members, which is formed of plastic and radially extending from a center thereof, and provided at the center thereof with a hub, which is formed of material having a rigidity larger than a rigidity of the support member and to which a rotating shaft of the rubber wheel is coupled,
- wherein an end portion of each of the plurality of support members is coupled to an inner circumferential surface of the rim.
A method of manufacturing an integrated-type spoke structure, the method comprising:
- (a1) molding a hub and a reinforcing member that each has a predetermined rigidity;
- and
- (b1) inserting the hub and the reinforcing member in a mold, and molding a spoke which is integrated with the hub and the reinforcing member through an injecting molding,
- wherein the hub and the reinforcing member each have a rigidity larger than a rigidity of the spoke.
Dependencies are inferred from the claim text.