Patent Application
20080166510
The present invention generally relates to the frame tubes of bicycle or tricycles, and more particularly to a frame tube formed by tubular fiber and metallic nets.
As shown in
The primary purpose of the present invention is to provide a novel frame tube for a bicycle or the like (hereinafter, the cycle), which mainly contains a number of coaxial tubular layers. The innermost one or two layers of the frame tube are made of a fiber material, and the outmost layer is a metallic net (preferably formed by diagonally weaved steel wires). Epoxy resin is interposed between the adjacent layers as an adhesive.
The advantage of the novel frame tube lies in that more than one type of material is adopted to form the frame tube so that, as the features of these materials are integrated together and compensate each other, superior frame strength and reduced production cost can be achieved simultaneously.
The foregoing object and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts.
Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims.
As shown in
In the present embodiment, the innermost layer 11 of the frame tube 1 is made of glass fiber, the outmost layer 13 is a metallic net (preferably formed by diagonally weaved steel wires), and the intermediate layer 12 sandwiched therebetween is made of carbon fiber.
In some embodiments, only a single inner layer will suffice. For example, from the inside out, there is the glass-fiber layer and then the metallic-net layer cladding over the glass-fiber layer.
As shown in
It will be understood that each of the elements described above, or two or more together may also find a useful application in other types of methods differing from the type described above.
While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.
