Fiber spoke and wheel

Abstract

The utility model provides a fiber spoke which comprises a spoke body, a first connecting section and a second connecting section, the first connecting section and the second connecting section are connected to the two ends of the spoke body, the spoke body is in a flat shaft shape and comprises a windward portion and a pointed tail portion, and the windward portion is located at the front end and arranged windward. The spoke main body comprises a windward part and two side surfaces connected between the windward part and the tail part, the spoke main body is provided with a wave structure, and the flat shaft shape design of the spoke main body is matched with the wave structure, so that the wind resistance of the spoke can be greatly reduced, and the overall wind resistance of the wheel set is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel accessories, in particular to a fiber spoke and a wheel. Background Art

[0002] Spokes are commonly used vehicle parts for connecting the wheel rim and the hub, especially in small motor vehicles such as bicycles and motorcycles. The main part of traditional spokes is a long straight bar with a round or flat cross-section. Spokes are strong in rigidity and simple in process, but they also bring some problems. For example, the spoke tension is lost quickly after the wheel set is inflated, and the overall anti-vibration effect of the wheel set is poor. Utility Model Content

[0003] Therefore, in view of at least one of the above problems, the utility model provides a fiber spoke and a wheel.

[0004] The utility model is implemented by the following scheme:

[0005] The utility model provides a fiber spoke, comprising a spoke body, and a first connecting section and a second connecting section connected to both ends of the spoke body, wherein the spoke body is in the shape of a flat shaft, and comprises a windward portion located at the front end and arranged to face the wind, a gradually pointed tail portion, and two side surfaces connected between the windward portion and the tail portion, and a wave structure is arranged on the spoke body.

[0006] In one embodiment, a first wave structure is provided on the windward portion and / or a second wave structure is provided on the two side surfaces.

[0007] In one embodiment, a first wave structure is arranged on the windward portion, and the first wave structure includes convex portions and concave portions which are continuously and alternately arranged.

[0008] In one embodiment, a second wave structure is provided on both side surfaces, and the second wave structure includes convex portions and concave portions that are continuously and alternately arranged, and the convex portion on the first side surface is opposite to the concave portion on the second side surface, so that a flat shaft overall wave structure is formed between the first side surface and the second side surface.

[0009] In one embodiment, a second wave structure is provided on one of the two side surfaces.

[0010] The utility model also proposes a wheel, comprising a plurality of fiber spokes as described in any of the preceding items, and also comprising a hub and a wind-reducing rim, the wind-reducing rim comprising an outer tire mounting portion for mounting a tire, an inner spoke mounting portion for mounting spokes, and two rim side walls relatively arranged between the outer tire mounting portion and the inner spoke mounting portion; the hub is located in the middle of the wind-reducing rim, the first end of each fiber spoke is respectively connected to the hub, and the second end of each spoke is respectively connected to the inner spoke mounting portion; the wind-reducing rim comprises a plurality of wind-breaking shapes, and the plurality of wind-breaking shapes are arranged on the rim side walls and arranged circumferentially around the center point of the rim.

[0011] In one embodiment, the outer contour of the wind-breaking shape is an inverted triangle, and there is a peak edge in the middle of the inverted triangle.

[0012] In one embodiment, at least partially overlapping layered staggered shapes are arranged on the surface of the wind-breaking shape.

[0013] In one embodiment, the wind-breaking shape is composed of a plurality of concave pit shapes, and the concave pit shape is a water drop-shaped concave pit shape.

[0014] In one embodiment, the wind-breaking shape includes a gradually pointed head, an arc-shaped main body, and a slender tail connected in sequence, and also includes a wing extending outward from the arc-shaped main body.

[0015] The technical solution provided by the utility model has the following technical effects:

[0016] 1. The utility model provides a fiber spoke, wherein the spoke body comprises a windward portion located at the front end and arranged to face the wind, a gradually tapering tail portion, and two side surfaces connected between the windward portion and the tail portion, and the spoke body is provided with a wave structure. The flat shaft shape design of the spoke body cooperates with the wave structure to greatly reduce the wind resistance of the spoke, thereby reducing the overall wind resistance of the wheel set.

[0017] 2. The fiber spokes with wave structure arranged on the spoke body cooperate with the wind resistance reducing rim, which can greatly reduce the wind resistance of the wheel and achieve better wind breaking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view of the fiber spoke of the first embodiment;

[0019] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 yes Figure 2 Middle HH cross-section;

[0021] Figure 4 is a side view of the fiber spoke of the first embodiment;

[0022] Figure 5 yes Figure 4 Enlarged view of point C in the middle;

[0023] Figure 6 is a front view of a wheel of the second embodiment;

[0024] Figure 7 yes Figure 6 Middle EE cross section;

[0025] Figure 8 is a front view of the wind-breaking shape of the second embodiment;

[0026] Fig. 9 yes Figure 8 The rotated view in F direction;

[0027] Fig.10 is a front view of a wheel in a third embodiment;

[0028] Fig.11 is a front view of the wind-breaking shape in the third embodiment;

[0029] Fig.12 is a front view of a wheel of a fourth embodiment;

[0030] Fig.13 is a front view of the wind-breaking shape of the fourth embodiment;

[0031] Fig.14 It is a front view of the water droplet dimple shape of the fourth embodiment. DETAILED DESCRIPTION

[0032] 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.

[0033] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0034] Example 1

[0035] like Figure 1-5As shown, this embodiment provides a fiber spoke 20, including a spoke body 201, and a first connecting section 202 and a second connecting section 203 connected to both ends of the spoke body 201. The fiber spoke 20 is made of carbon fiber. The spoke body 201 is processed into a flat shaft shape during the molding and curing process, or preferably, the spoke body 201 is processed into a flat shaft shape with a teardrop-shaped cross section during the molding and curing process. The first connecting section 202 and the second connecting section 203 connected thereto are still cylindrical shafts, so that the flat shaft shape design of the spoke body 201 can be used to greatly reduce the wind resistance of the vehicle.

[0036] The first connecting section 202 and the second connecting section 203 of the fiber spoke 20 are used to fix the connecting piece, so as to be connected to the rim 10 and the hub 30 respectively through the connecting piece. A plurality of fiber spokes 20 are connected to the rim 10 and the hub 30 respectively, so as to form a complete wheel. The connecting piece used to connect with the rim and the hub can be, for example, a tooth cap and a cap head respectively.

[0037] It should be noted that this embodiment is described by taking the fiber spoke 20 made of carbon fiber as an example. However, those skilled in the art can expect that it is also feasible to use a spoke body made of high-strength and high-modulus fibers of other materials. Among them, high-strength and high-modulus fibers refer to high-performance fiber materials defined under well-known standards in the industry, specifically: synthetic fibers or natural fibers with a strength greater than 10CN / dkex and a modulus greater than 200CN / dkex.

[0038] The spoke body 201 of the fiber spoke 20 is in the shape of a flat shaft. Figure 3 As shown, the spoke body 201 includes a windward portion 211 located at the front end and arranged to face the wind, a gradually tapering tail portion 214, and two side surfaces 212 and 213 connected between the windward portion 211 and the tail portion 214. The flat shaft shape design of the spoke body 201 can be used to greatly reduce the wind resistance of the vehicle, especially the flat shaft shape design with a teardrop-shaped cross section further reduces the wind resistance and has a better wind-breaking effect.

[0039] like Figure 1-5 As shown, a wave structure is provided on the spoke body 201. The wave structure is described in detail as follows: The flat shaft shape design of the spoke body 201 cooperates with the wave structure to greatly reduce the wind resistance of the spoke, thereby reducing the overall wind resistance of the wheel set.

[0040] like Figure 1-2 As shown, a first wave structure 220 is provided on the windward portion 211. The first wave structure 220 includes convex portions 221 and concave portions 222 (such as Figure 2The first wave structure 220 on the windward portion 211 of the fiber spoke 20 can reduce the wind resistance of the fiber spoke 20 in the windward direction, thereby reducing the overall wind resistance of the wheel set.

[0041] like Figure 4-5 As shown, a second wave structure 230 is provided on the two side surfaces 212 and 213. The second wave structure 230 includes convex portions 231 and concave portions 232 (such as Figure 2 The convex part 231 and the concave part 232 are separated by the short dashed line. The second wave structure 230 on the two side surfaces 212 and 213 of the fiber spoke 20 can reduce the lateral wind resistance of the fiber spoke 20, thereby reducing the overall wind resistance of the wheel set. Preferably, the second wave structure 230 is provided on both side surfaces 212 and 213. It is easy to understand that providing the second wave structure 230 on one of the side surfaces is also a feasible technical solution. In this embodiment, the second wave structure 230 is provided on both side surfaces 212 and 213, and the convex part 231 of the second wave structure 230 on the first side surface 212 is opposite to the concave part 232 of the second side surface 213, so that a flat shaft integral wave structure is formed between the first side surface 212 and the second side surface 213, which can achieve a better wind resistance reduction effect, and can reduce the impact force on the wheel set, and achieve a shock absorption effect; and the structure can reduce the tension loss of the spoke wheel set after being inflated, and the spoke installation is more stable.

[0042] It is easy to understand that in other embodiments, the first wave structure 220 or the second wave structure 230 may be separately provided on the fiber spoke 20 , which is also a feasible technical solution.

[0043] Example 2

[0044] like Figure 6-9 As shown, this embodiment provides a wheel, comprising a plurality of fiber spokes 20 as described in the previous embodiment, a hub 30 and a wind resistance reducing rim 10, wherein the hub 30 is located in the middle of the wind resistance reducing rim 10, the first end of each fiber spoke 20 is respectively connected to or integrally formed with the hub 30, and the second end of each spoke 20 is respectively connected to or integrally formed with the inner ring spoke mounting portion 12. In this embodiment, preferably, the wind resistance reducing rim 10 and / or the hub 30 are made of carbon fiber.

[0045] The wind resistance reducing rim 10 cooperates with the fiber spokes 20 as described in the first embodiment, which can greatly reduce the wind resistance of the wheel and achieve a better wind-breaking effect.

[0046] The wind resistance reducing rim 10 includes an outer ring tire mounting portion 11 for mounting a tire, an inner ring spoke mounting portion 12 for mounting spokes, and two rim side walls 13 relatively arranged between the outer ring tire mounting portion 11 and the inner ring spoke mounting portion 12, wherein the outer ring tire mounting portion 11, the inner ring spoke mounting portion 12 and the two rim side walls 13 enclose a cavity. Preferably, the four are integrally formed and made of carbon fiber. The wind resistance reducing rim 10 also includes a plurality of wind-breaking shapes 15, which are arranged on the rim side wall 13 and are arranged circumferentially around the center point of the rim. The wind-breaking shapes 15 can guide the flow of the lateral airflow blowing toward the rim side wall 13, thereby reducing the wind resistance suffered by the rim side wall 13.

[0047] Preferably, the wind-breaking shapes 15 are evenly distributed circumferentially on the rim sidewall 13. The evenly distributed wind-breaking shapes 15 make the rim more evenly stressed and help reduce wind resistance.

[0048] Further preferably, the wind-breaking shapes 15 are arranged on the rim sidewall 13 at the extension of each spoke hole, that is, the number of spoke holes is equal to the number of the circumferential array of wind-breaking shapes 15. In this way, the wind-breaking shapes 15 can guide the lateral airflow and correspond to the spoke positions, so that the airflow is guided more smoothly, thereby further reducing wind resistance.

[0049] like Figure 6-9 As shown, the wind-breaking shape 15 is an inverted triangle, and further an inverted triangle peak shape, wherein the inverted triangle peak shape means that the outer contour of the wind-breaking shape 15 is an inverted triangle shape, and there is a peak edge 151 in the middle of the inverted triangle. The height of the peak edge 151 is high, and the heights of the two side edges 154 and 155 of the inverted triangle are low, and there is a transition from the peak edge 151 to the two side edges 154 and 155. The peak edge 151 can peel off the airflow to flow to both sides, thereby reducing the wind resistance on the rim side wall 13.

[0050] The peak edge 151 is formed by connecting a vertex 152 of the inverted triangle and a point on the opposite side 153 of the vertex 152. Preferably, the peak edge 151 is formed by connecting a vertex 152 of the inverted triangle and the midpoint of the opposite side 153 of the vertex 152, and the opposite side 153 is substantially parallel to the outer edge of the rim side wall 13. In this way, the peak edge 151 has less wind resistance when rotating with the rim, and can also reduce the wind resistance on the rim side wall 13.

[0051] Preferably, the surface of the inner ring spoke mounting portion 12 is an inner ring wave shape with a continuous concave-convex structure, which can cooperate with the wind-breaking shape 15 to further reduce wind resistance. Furthermore, the convex part of the inner ring wave shape of the inner ring spoke mounting portion 12 corresponds to each spoke hole, and also roughly corresponds to the vertex 152 of the wind-breaking shape 15, so that the wind-breaking shape 15 can guide the lateral airflow and correspond to the spoke position and the inner ring wave shape, so that the airflow guidance is smoother, and the wind and side wind can be reduced as a whole, thereby further reducing wind resistance.

[0052] Example 3

[0053] This embodiment is further improved on the basis of embodiment 2. Figure 10-11 As shown, in this embodiment, at least partially overlapping layered staggered arrangement shapes 156 are arranged on the surface of the wind-breaking shape 15, and the rest is the same as that of embodiment 2. The at least partially overlapping layered staggered arrangement shapes are similar to the arrangement structure of dragon scales in traditional Chinese patterns. The at least partially overlapping layered staggered arrangement shapes can be used to resist crosswind vortex, thereby further reducing wind resistance.

[0054] Example 4

[0055] like Figure 12-14 As shown, this embodiment provides a wind resistance reducing rim 10', and the wind resistance reducing rim 10' has a wind-breaking shape that is different from that of embodiment 2, and the rest is the same as embodiment 2. In this embodiment, the wind resistance reducing rim 10' includes a plurality of wind-breaking shapes 16, and the plurality of wind-breaking shapes 16 are arranged on the rim side wall 13 and are arranged circumferentially around the center point of the rim. The wind-breaking shapes 16 can guide the flow of the lateral airflow blowing toward the rim side wall 13, thereby reducing the wind resistance on the rim side wall 13.

[0056] The wind resistance reducing rim 10 ′ cooperates with the fiber spokes 20 as described in the first embodiment to greatly reduce the wind resistance of the wheel and achieve a better wind-breaking effect.

[0057] Preferably, the wind-breaking shapes 16 are evenly distributed circumferentially on the rim sidewall 13. The evenly distributed wind-breaking shapes 16 make the rim more evenly stressed and help reduce wind resistance.

[0058] Further preferably, the wind-breaking shape 16 is arranged on the rim side wall 13 at the extension of each spoke hole, that is, the number of spoke holes is equal to the number of the circumferential array of the wind-breaking shape 16. In this way, the wind-breaking shape 16 can guide the lateral airflow and correspond to the spoke position, so that the airflow is guided more smoothly, thereby further reducing wind resistance.

[0059] like Figure 12-14As shown, the wind-breaking shape 16 is composed of a plurality of dimple shapes 161. The wind-breaking shape 16 composed of a plurality of dimple shapes 161 can utilize the dimple principle on the surface of a golf ball to reduce the lateral resistance generated during the rotation of the rim.

[0060] like Figure 12-14 As shown, the plurality of concave hole shapes 161 are water drop-shaped concave pit shapes 161. The water drop-shaped concave pit shape can further reduce wind resistance.

[0061] The teardrop-shaped concave shape 161 includes a front end 1611, a rear tip 1612, and two side surfaces 1613 connecting the front end 1611 and the rear tip 1612. In this embodiment, the front end 1611 faces the windward direction, so that the wind resistance reduction performance of the teardrop-shaped concave shape can achieve the best effect.

[0062] The wind-breaking shape 16 is in the shape of a swallow, which can also be called a hook shape, and includes a gradually tapering head 163, an arc-shaped main body 162, and an elongated tail 164 connected in sequence, and also includes a wing 165 extending outward from the arc-shaped main body 162. The head 163 of the wind-breaking shape 16 faces the windward direction, and the elongated tail 164 and the wing 165 extend in the opposite direction of the windward direction.

[0063] The side of the rim side wall 13 close to the rim center is defined as the inner side, and the side away from the rim center is defined as the outer side. The slender tail portion 164 of the wind-breaking shape 16 is close to the outer side of the rim side wall 13, and the wing portion 165 is close to the inner side of the rim side wall 13. The wind-breaking shape 16 not only has a good wind-breaking effect, but also has a beautiful shape and a decorative function.

[0064] Preferably, the surface of the inner spoke mounting portion 12 is an inner wave shape with a continuous concave-convex structure, which can cooperate with the wind-breaking shape 16 to further reduce wind resistance. Furthermore, the convex portion of the inner wave shape of the inner spoke mounting portion 12 corresponds to each spoke hole, and also roughly corresponds to the wing portion 165 of the wind-breaking shape 16, so that the wind-breaking shape 16 can guide the lateral airflow and correspond to the spoke position and the inner wave shape, so that the airflow guidance is smoother, and the wind and side wind can be reduced as a whole, thereby further reducing wind resistance.

[0065] 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 may be 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, all of which are within the scope of protection of the present invention.

Claims

1. A fiber spoke, comprising a spoke body, and a first connecting section and a second connecting section connected to two ends of the spoke body, characterized in that: The spoke body is in the shape of a flat shaft, and comprises a windward portion located at the front end and arranged to face the wind, a gradually pointed tail portion, and two side surfaces connected between the windward portion and the tail portion, and a wave structure is arranged on the spoke body.

2. The fiber spoke according to claim 1, characterized in that: The windward portion is provided with a first wave structure and / or the two side surfaces are provided with a second wave structure.

3. The fiber spoke according to claim 1, characterized in that: The windward portion is provided with a first wave structure, wherein the first wave structure comprises convex portions and concave portions which are continuously and alternately arranged at intervals.

4. The fiber spoke according to claim 1, characterized in that: A second wave structure is arranged on both side surfaces, and the second wave structure includes convex parts and concave parts which are arranged continuously and alternately, and the convex part on the first side surface is opposite to the concave part on the second side surface, so that an overall wave structure of a flat shaft is formed between the first side surface and the second side surface.

5. The fiber spoke according to claim 1, characterized in that: A second wave structure is arranged on one of the two side surfaces.

6. A wheel, characterized in that: It comprises a plurality of fiber spokes as described in any one of claims 1 to 5, and also comprises a hub and a wind-reducing rim, the wind-reducing rim comprising an outer tire mounting portion for mounting a tire, an inner spoke mounting portion for mounting spokes, and two rim side walls relatively arranged between the outer tire mounting portion and the inner spoke mounting portion; the hub is located in the middle of the wind-reducing rim, the first end of each fiber spoke is respectively connected to the hub, and the second end of each spoke is respectively connected to the inner spoke mounting portion; the wind-reducing rim comprises a plurality of wind-breaking shapes, and the plurality of wind-breaking shapes are arranged on the rim side walls and arranged circumferentially around the center point of the rim.

7. The wheel according to claim 6, characterized in that: The outer contour of the wind-breaking shape is an inverted triangle, and there is a peak edge in the middle of the inverted triangle.

8. The wheel according to claim 7, characterized in that: At least partially overlapping layered staggered arrangements are provided on the surface of the wind-breaking shape.

9. The wheel according to claim 6, characterized in that: The wind-breaking shape is composed of a plurality of concave shapes, and the concave shape is a water drop-shaped concave shape.

10. The wheel according to claim 9, characterized in that: The wind-breaking shape includes a gradually pointed head, an arc-shaped main body and a slender tail connected in sequence, and also includes a wing portion extending outward from the arc-shaped main body.

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