Patent Application
20240100880
This application claims priority of Taiwanese Patent Application No. 111136546, filed on Sep. 27, 2022.
The present disclosure relates to a wheel frame, more particularly to a multi-piece wheel frame made of multiple materials.
Referring to
The object of the disclosure is to provide a hand tool that can alleviate at least one of the drawbacks of the prior art.
According to the disclosure, the multi-piece wheel frame includes a rim and a disc. The rim includes a barrel, an inner flange portion connected to a periphery of the barrel and protruding radially inwardly, and an outer rim portion protruding outwardly from an intersection of the barrel and the inner flange portion. The inner flange portion forms a planar surface that has a normal vector parallel to a central axis of the barrel. The outer rim portion forms an inclined surface that is connected to an outer periphery of the planar surface and that cooperates with the planar surface to form an obtuse angle, and a ring edge surface that is connected to an outer edge of the inclined surface and that cooperates with the inclined surface to form an obtuse angle. The disc is fixed to the rim, and includes a disc core, a plurality of spoke portions that extend radially outwardly from the disc core and that are annularly spaced apart from each other, and a reinforced ring portion that is connected to the spoke portions and that is fixed to the outer rim portion. The reinforced ring portion abuts against at least one of the inclined surface and the ring edge surface.
Other features and effects of the present disclosure will be clearly presented in the embodying manner with reference to the drawings, in which:
Referring to
The disc 3 includes a disc core 31, a plurality of spoke portions 32 extending radially outwardly from the disc core 31 and annularly spaced apart from each other, and a reinforced ring portion 33 connected to the spoke portions 32 and fixed to the outer rim portion 23. The disc 3 may be integrally formed by aluminum alloy or other metallic material through forging or casting, or assembled by multiple pieces. Alternatively, the disc core 31 and the spoke portions 32 may be integrally formed by aluminum alloy or assembled by multiple pieces, while the reinforced ring portion 33 is made of different materials (e.g., other metallic materials or composite materials) and is connected to the spoke portions 32 through soldering, adhering, inserting, encapsulating, or other means. The reinforced ring portion 33 has an oblique annular surface 331 clinging to the inclined surface 231, and an annular peripheral surface 332 connected to an outer edge of the oblique annular surface 331 and clinging the ring edge surface 232.
When performing an impact test under Road Traffic No. 287, Section 30 StVZO Standard, the embodiment according to the disclosure can pass the test, while the conventional wheel frame structure cannot pass. In addition, Table below is the result of a radial impact test of the embodiment under TÜV (Technical Inspection Association) specification standard. Primarily, the teste simulates a rim impact when a vehicle is driving through a pit hole or an obstacle, so it is necessary for the rim to be installed on the impact testing apparatus after being mounted with a tire, so that a radial impact test in the direction of the valve hole can be performed. The rim load weight set in this embodiment is 650 kg. As can be seen from the results of the Table, in 60 seconds after impact, the internal pressure of the present disclosure does not drop to 0, which met the test criteria and passed the test.
Referring to
In summary, through the design of the reinforced ring portion 33 abutting against at least one of the inclined surface 231 and the ring edge surface 232, the impacted portion is converted to a carbon fiber-aluminum composite structure, resulting in enhancing the ability to withstand impact and increasing the overall strength and durability, thereby certainly achieving the object of the present disclosure.
In the present description, the terms “attached”, “connected”, “fixed”, etc. should be understood in a broad sense, and may be fixed connection, detachable connection, or be integral; may be mechanical connections or electrical connections; may be directly connected, or may also be indirectly connected through a middle medium, may be the internal connection between two elements or interaction relationship of the two elements. A person skilled in the art may appreciate the specific meaning of the foregoing terms in this disclosure. Furthermore, the specific features, structures, etc. described in the embodiments are included in at least one embodiment, such as those skilled in the art may combine features of different implementations without conflicting with each other. The scope of protection of the present disclosure is not limited to the above-described specific example approaches, following the basic technical idea according to the present disclosure, those ordinarily skilled in the art need not engage in creative labor and can reason out an implementation, all the aforementioned belong to the scope of protection of the present disclosure.
However, the above is merely an embodiment of the present disclosure, and certainly the scope of practicing the present disclosure is not limited thereto. Any equivalent variation and modification made according to the claims of the present disclosure and the specification of the present disclosure should still be within the scope covered by the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 111136546 | Sep 2022 | TW | national |
