A spoke mechanism

Abstract

The utility model relates to the technical field of bicycle spokes, and specifically discloses a spoke mechanism, including a carbon fiber spoke, which includes a spoke body located in the middle and fixed joints located at two ends, the fixed joints at the two ends are respectively used for fixing a tooth cap and a cap head, the fixed joint includes a column part and a cone part wrapped around the outer periphery of the column part, the column part and the cone part are integrally formed, the arrangement enables the fibers in the column part and the cone part to be continuously distributed, can avoid the phenomenon of delamination and slippage between the column part and the cone part, ensure product quality, make the assembly of the tooth cap and the cap head more firm, better stability, more safe and reliable, and have a long service life.

Description

Technical Field

[0001] The utility model relates to the technical field of bicycle spokes, in particular to a spoke mechanism. Background Art

[0002] See also Figure 6 The figure shows a cross-sectional view of the cap head end of an existing spoke mechanism, where both ends of the carbon fiber spoke are fixed joints 1', and the fixed joints 1' include a column portion 11' and a cone portion 12' that are separately cured and formed in sequence. This arrangement causes the fibers in the column portion 11' and the cone portion 12' to be disconnected or distributed discontinuously, which can easily cause delamination and slippage between the column portion 11' and the cone portion 12', affecting product quality, and causing the assembly of the tooth cap and the cap head 2' to be not firm enough, posing a greater safety hazard. Utility Model Content

[0003] The utility model aims to provide a spoke mechanism to solve the above-mentioned technical problems.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is: a spoke mechanism, including carbon fiber spokes, which include a spoke body located in the middle and fixed joints located at both ends, the fixed joints at both ends are respectively used for fixing the tooth cap and the cap head, the fixed joint includes a column part and a cone part wrapped around the periphery of the column part, and the column part and the cone part are integrally formed.

[0005] Preferably, the spoke body is flat.

[0006] Preferably, it also includes a thread cap and a cap head, each of which is provided with a penetrating conical hole, and the thread cap and the cap head are respectively fixedly mounted on the fixing joints at both ends of the carbon fiber spokes through the corresponding limiting cooperation between the cone part and the conical hole.

[0007] Preferably, the cross-sections of the cone portion and the cone hole gradually increase from the inside to the outside.

[0008] Preferably, the carbon fiber spoke also includes a cylindrical transition portion located between the spoke body and the fixing head, the cylindrical transition portion is exposed outside the cap head or the thread cap, and the length of the cylindrical transition portion is less than the length of the cap head and the thread cap.

[0009] Preferably, the carbon fiber spoke also includes an inclined transition portion located between the spoke body and the cylindrical transition portion, the two ends of the inclined transition portion are a circular end surface and a flat surface respectively, the circular end surface is butt-fitted with the cylindrical transition portion, and the flat surface is butt-fitted with the spoke body.

[0010] Preferably, the width of the inclined transition portion gradually increases from the circular end surface toward the flat surface, and the width of the flat surface is the same as the width of the spoke body, and the diameter of the circular end surface is the same as the diameter of the cylindrical transition portion.

[0011] The utility model has the following beneficial effects:

[0012] The utility model includes a carbon fiber spoke, which includes a spoke body located in the middle and fixed joints located at both ends, the fixed joints at the two ends are respectively used for fixing a tooth cap and a cap head, the fixed joint includes a column part and a cone part wrapped around the outer periphery of the column part, the column part and the cone part are integrally formed, the arrangement makes the fibers in the column part and the cone part continuously distributed, can avoid the phenomenon of stratification and slippage between the column part and the cone part, ensure the product quality, make the assembly of the tooth cap and the cap head more firm, better stable, safer and more reliable, and have a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is an exploded view of an embodiment of the utility model;

[0014] Figure 2 It is a schematic diagram of the assembly of an embodiment of the utility model;

[0015] Figure 3 It is a cross-sectional view of an embodiment of the utility model;

[0016] Figure 4 It is a structural schematic diagram of a tooth cap according to an embodiment of the utility model;

[0017] Figure 5 is a cross-sectional view of the cap head end of the spoke mechanism of an embodiment of the present utility model;

[0018] Figure 6 is a cross-sectional view of the cap end of a spoke mechanism of the prior art;

[0019] Figure annotation:

[0020] Prior art part: 1 fixed joint, 11' column part, 12' cone part, 2' cap head;

[0021] Parts of the utility model include: 1 a carbon fiber spoke, 11 a spoke body, 12 an inclined transition portion, 13 a cylindrical transition portion, 14 a fixing joint, 141 a cylindrical portion, 142 a cone portion, 2 a tooth cap, 3 a cap head, and 4 a cone hole. DETAILED DESCRIPTION

[0022] To further illustrate the various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, a person of ordinary skill in the art should be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0023] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1-5 As shown, as an embodiment of the utility model, a spoke mechanism is provided, including a carbon fiber spoke 1, which includes a spoke body 11 located in the middle and fixing joints 14 located at both ends, the fixing joints 14 at both ends are respectively used for fixing the tooth cap 2 and the cap head 3, the fixing joint 14 includes a column part 141 and a cone part 142 wrapped around the outer periphery of the column part 141, the column part 141 and the cone part 142 are integrally formed, the arrangement makes the fibers in the column part 141 and the cone part 142 continuously distributed, can avoid the delamination and slippage between the column part 141 and the cone part 142, ensure the product quality, make the assembly of the tooth cap 2 and the cap head 3 more firm, better stable, safer and more reliable, and have a long service life.

[0026] Preferably, it also includes a thread cap 2 for connecting with the rim and a cap head 3 for connecting with the hub, and the thread cap 2 and the cap head 3 are respectively provided with a penetrating conical hole 4, and the conical portion 142 is limitedly matched with the conical hole 4, so that the thread cap 2 and the cap head 3 are respectively fixedly mounted on the fixing joints 14 at both ends of the carbon fiber spoke 1, and the cross-section of the conical portion 142 and the conical hole 4 gradually increases from the inside to the outside, so that the cap head 3 and the thread cap 2 are stretched outward, and the more force they are subjected to, the tighter they can be fixed on the fixing joints 14 at both ends of the carbon fiber spoke 1, thereby further improving the assembly stability of the thread cap 2 and the cap head 3.

[0027] Preferably, the carbon fiber spoke 1 also includes a cylindrical transition portion 13 located between the spoke body 11 and the fixing head 14, the cylindrical transition portion 13 is exposed on the outside of the cap head 3 or the tooth cap 2, and the length of the cylindrical transition portion 13 is less than the length of the cap head 3 and the tooth cap 2, and the spoke body 11 is flat. This arrangement makes the length of the cylindrical transition portion 13 relatively short and the length of the spoke body 11 relatively long, so that the length of the spoke body 11 accounts for a larger proportion of the overall length of the carbon fiber spoke 1, and because the spoke body 11 is flat, the longer the spoke body 11, the smaller the wind resistance of the bicycle during riding, and it is easier to break the wind, and the stability is good, thereby improving the user's riding efficiency and riding experience.

[0028] Preferably, the carbon fiber spoke 1 also includes an inclined transition portion 12 located between the spoke body 11 and the cylindrical transition portion 13, and the two ends of the inclined transition portion 12 are a circular end surface and a flat surface respectively, the circular end surface is butt-fitted with the cylindrical transition portion 13, and the flat surface is butt-fitted with the spoke body 11.

[0029] Preferably, the width of the inclined transition portion 12 gradually increases from the circular end surface toward the flat surface, and the width of the flat surface is the same as the width of the spoke body 11, and the diameter of the circular end surface is the same as the diameter of the cylindrical transition portion 13, thereby making the transition between the spoke body 11 and the cylindrical transition portion 13 smoother and more stable.

[0030] Although the present invention has been specifically demonstrated and described in conjunction with the preferred embodiments, those skilled in the art should understand that various changes made to the present invention in form and detail, without departing from the spirit and scope of the present invention as defined in the appended claims, shall fall within the scope of protection of the present invention.

Claims

1. A spoke mechanism, characterized in that: It includes carbon fiber spokes, which include a spoke body located in the middle and fixing joints located at both ends. The fixing joints at both ends are respectively used for fixing the tooth cap and the cap head. The fixing joint includes a column part and a cone part wrapped around the periphery of the column part. The column part and the cone part are integrally formed.

2. The spoke mechanism according to claim 1, characterized in that: The spoke body is flat.

3. The spoke mechanism according to claim 1, characterized in that: It also includes a thread cap and a cap head, each of which is provided with a penetrating conical hole. The thread cap and the cap head are fixedly sleeved on the fixing joints at both ends of the carbon fiber spokes through the corresponding limiting cooperation of the cone part and the conical hole.

4. The spoke mechanism according to claim 3, characterized in that: The cross sections of the cone portion and the cone hole gradually increase from the inside to the outside.

5. The spoke mechanism according to claim 3, characterized in that: The carbon fiber spoke also includes a cylindrical transition portion located between the spoke body and the fixing joint, the cylindrical transition portion is exposed outside the cap head or the tooth cap, and the length of the cylindrical transition portion is less than the length of the cap head and the tooth cap.

6. The spoke mechanism according to claim 5, characterized in that: The carbon fiber spoke also includes an inclined transition portion located between the spoke body and the cylindrical transition portion. The two ends of the inclined transition portion are a circular end surface and a flat surface respectively. The circular end surface is butt-matched with the cylindrical transition portion, and the flat surface is butt-matched with the spoke body.

7. The spoke mechanism according to claim 6, characterized in that: The width of the inclined transition portion gradually increases from the circular end surface toward the flat surface, and the width of the flat surface is the same as the width of the spoke body, and the diameter of the circular end surface is the same as the diameter of the cylindrical transition portion.

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