Carbon fiber bicycle rim provided with metal wires in penetrating mode and forming method of carbon fiber bicycle rim

Abstract

The invention discloses a carbon fiber bicycle rim and a forming method thereof, and belongs to the strengthening technology of carbon fiber rims. Specifically, the metal wires (steel wires) are arranged in the side wall of the carbon fiber wheel rim in a penetrating manner, so that the impact resistance and deformation resistance of the wheel rim are improved.

Description

Technical Field

[0001] This invention relates to a manufacturing technology for bicycle rims, particularly a reinforcement technology for carbon fiber rims, which involves inserting metal wires (steel wires) into the sidewalls of the carbon fiber rim to improve the rim's impact resistance and deformation resistance. Background Technology

[0002] While traditional carbon fiber bicycle rims are lightweight and possess excellent strength, their limited material properties restrict their resistance to high impacts, making them prone to deformation or damage under intense use. Current carbon fiber rims typically lack metal reinforcement, further compromising their performance under strong impacts, necessitating improvements to enhance their overall performance. Summary of the Invention

[0003] The purpose of this invention is to provide an improved carbon fiber bicycle rim that enhances the rim's impact resistance and deformation resistance by inserting metal wires (steel wires) into the sidewalls of the carbon fiber rim, thereby improving the rim's performance and durability.

[0004] To achieve the above-mentioned main objectives, the present invention provides a carbon fiber bicycle wheel rim comprising a wheel rim body made of carbon fiber material and a metal wire, which is inserted into one side wall of the wheel rim body. The cross-sectional shape of the metal wire can be square, triangular, circular, or other shapes. The selection and configuration of the metal wire will be determined according to the required strength and rigidity.

[0005] Secondly, the present invention provides a method for forming a carbon fiber bicycle rim, which includes integrally forming a metal wire into the side wall of a carbon fiber rim body by blowing air. This technology ensures a good bond between the metal wire and the carbon fiber rim body, and improves the overall structural strength of the rim.

[0006] The detailed structure, features, assembly, or usage of the carbon fiber bicycle rim with metal wire threaded through it and the forming method thereof provided by the present invention will be described in the following detailed description of the embodiments.

[0007] However, those skilled in the art should understand that the specific embodiments and examples listed for implementing this invention are merely illustrative and not intended to limit the scope of protection of this invention. Attached Figure Description

[0008] Figure 1 This is a cross-sectional schematic diagram of the carbon fiber bicycle rim provided in the first embodiment of the present invention, showing that the cross-section of the metal wire is square.

[0009] Figure 2This is a cross-sectional schematic diagram of the carbon fiber bicycle rim provided in the second embodiment of the present invention, showing that the cross-section of the metal wire is triangular.

[0010] Figure 3 This is a cross-sectional schematic diagram of the carbon fiber bicycle rim provided in the third embodiment of the present invention, showing that the cross-section of the metal wire is circular.

[0011] 10: Wheel body 20: Metal wire 30: Sidewall Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0013] The applicant hereby clarifies that throughout this specification, including the embodiments described below and the scope of the claims, all directional terms are based on the directions shown in the accompanying drawings. Secondly, in the embodiments and drawings described below, the same reference numerals represent the same or similar elements or structural features thereof.

[0014] First, please refer to Figure 1 The carbon fiber bicycle rim provided in the first embodiment of the present invention mainly comprises a carbon fiber rim body 10 and two metal wires 20. The carbon fiber rim body 10 has two opposing sidewalls 30. The inner side of the sidewall 30 has a recess for engaging the tire bead. The top of the sidewall 30, particularly above the recess, is perforated with metal wires 20, such as (but not limited to) steel wires. In the manufacturing of the aforementioned carbon fiber bicycle rim, carbon fiber material and metal wires 20 are prepared. According to design requirements, various shapes of metal wires 20 can be selected. For example, in this embodiment, a metal wire 20 with a square cross-section is selected. The carbon fiber material and metal wires 20 are arranged in a mold of the rim shape. Using a blow molding technique, the square metal wires 20 are embedded into the sidewalls 30 of the carbon fiber rim body 20 to complete the forming of the rim.

[0015] Figure 2 This invention shows a carbon fiber bicycle rim provided in a second embodiment. This rim also includes a carbon fiber rim body 10 and two metal wires 20. The difference from the rim provided in the first embodiment is that the cross-sectional shape of the metal wires 20 is triangular in this embodiment. In other words, the carbon fiber bicycle rim provided in this embodiment is manufactured by placing carbon fiber material and the triangular metal wires 20 in a mold shaped like a rim, and using a blow molding technique to embed the triangular metal wires 20 into the sidewalls 30 of the carbon fiber rim body 20, thus completing the rim's formation.

[0016] Furthermore, please refer to Figure 3 , Figure 3 This invention shows a carbon fiber bicycle rim according to a third embodiment of the present invention. This rim also includes a carbon fiber rim body 10 and two metal wires 20, but differs from the one provided in the previous embodiments in that the cross-sectional shape of the metal wires 20 is circular in this embodiment. According to design requirements, the carbon fiber bicycle rim provided in this embodiment is manufactured by placing carbon fiber material and the circular metal wires 20 in a mold shaped like the rim, and using a blow molding technique to embed the circular metal wires 20 into the sidewalls 30 of the carbon fiber rim body 20, thus completing the rim forming.

[0017] Next, impact tests were conducted on the wheel rims of the first to third embodiments described above to verify their impact resistance. Simultaneously, the deformation resistance of the wheel rims was tested to ensure they met design requirements. Furthermore, the test results showed that the carbon fiber bicycle wheel rims with metal wires threaded through them indeed exhibited better impact resistance and deformation resistance than existing wheel rims.

[0018] In summary, this invention significantly improves the impact resistance and deformation resistance of carbon fiber bicycle rims by embedding metal wires into them. This technology not only improves the performance of the rims but also revolutionizes the design of traditional carbon fiber rims, demonstrating significant practical value.

[0019] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A carbon fiber bicycle rim, characterized in that... Includes: A carbon fiber wheel rim body, having one sidewall; and A metal wire is threaded through the side wall of the carbon fiber rim body to enhance the impact resistance and deformation resistance of the carbon fiber bicycle rim, thereby improving the performance and durability of the carbon fiber bicycle rim.

2. The carbon fiber bicycle rim as described in claim 1, characterized in that: The metal wire is a steel wire.

3. The carbon fiber bicycle rim as described in claim 1, characterized in that: The cross-section of the metal wire is square, triangular, or circular.

4. A method for forming a carbon fiber bicycle rim as described in claim 1, characterized in that, A metal wire is integrally formed into the side wall of a carbon fiber rim body by air blowing, ensuring a good bond between the metal wire and the carbon fiber rim body and improving the overall structural strength of the carbon fiber bicycle rim.

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