Wind resistance reducing rim and wheel

Abstract

The utility model provides a wind resistance reducing rim and a wheel, the wind resistance reducing rim comprises an outer ring tire mounting part used for mounting a tire, an inner ring spoke mounting part used for mounting spokes, and two rim side walls oppositely arranged between the outer ring tire mounting part and the inner ring spoke mounting part, and the wind resistance reducing rim is characterized in that the outer ring tire mounting part and the inner ring spoke mounting part are arranged oppositely; the bicycle rim further comprises a plurality of wind breaking models, the wind breaking models are arranged on the side wall of the bicycle rim and annularly surround the center point of the bicycle rim, the outer contour of each wind breaking model is in an inverted triangle shape, a peak edge is arranged in the middle of each inverted triangle, and the wind breaking models can guide lateral airflow blown to the side wall of the bicycle rim to flow. Therefore, wind resistance borne by the side wall of the rim is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wheel accessories, in particular to a rim for reducing wind resistance and a wheel with the rim. Background Art

[0002] For bicycles, especially road bicycles, the shape of the rims will directly affect the wind resistance during riding, so it is particularly important to design a reasonable rim shape. The mainstream on the market is to design the inner ring of the rim into a wave shape, that is, a wave rim. Traditional wave rims only have concave and convex shapes on the inner ring of the rim, and the side is not reasonably optimized to resist wind resistance. The side of the rim has limited effect on reducing crosswind resistance, resulting in a general wind resistance reduction effect on the rim as a whole. Utility Model Content

[0003] Therefore, in view of at least one of the above problems, the utility model provides a rim with reduced wind resistance and a wheel having the rim with reduced wind resistance.

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

[0005] The utility model proposes a rim for reducing wind resistance, comprising an outer rim tire mounting portion for mounting a tire, an inner rim spoke mounting portion for mounting spokes, and two rim side walls relatively arranged between the outer rim tire mounting portion and the inner rim spoke mounting portion, and also comprising a plurality of wind-breaking shapes, wherein the plurality of wind-breaking shapes are arranged on the rim side walls and circumferentially arranged around the center point of the rim, and the wind-breaking shapes are composed of a combination of a plurality of pit shapes.

[0006] In one embodiment, the dimple shape is a water drop shape.

[0007] In one embodiment, the teardrop-shaped pit includes a front end, a rear tip, and two side surfaces connecting the front end and the rear tip, and the front end faces the windward direction.

[0008] In one embodiment, the wind-breaking shape includes a 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.

[0009] In one embodiment, the side of the rim sidewall close to the center of the rim is defined as the inner side, and the side away from the center of the rim is defined as the outer side, the slender tail of the wind-breaking shape is close to the outer side of the rim sidewall, and the wing is close to the inner side of the rim sidewall.

[0010] In one embodiment, the wind-breaking shape is evenly distributed circumferentially on the side wall of the rim.

[0011] In one embodiment, the wind-breaking shape is arranged on the side wall of the rim 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.

[0012] In one embodiment, the surface of the inner ring spoke mounting portion is an inner ring wave shape having a continuous concave-convex structure.

[0013] In one embodiment, the wind resistance reducing rim is made of carbon fiber.

[0014] The utility model also proposes a wheel, comprising the wind resistance reducing rim as described above, and also comprising a hub and a plurality of spokes, wherein the hub is located in the middle of the wind resistance reducing rim, the first end of each spoke is respectively connected to or integrally formed with the hub, and the second end of each spoke is respectively connected to or integrally formed with the inner ring spoke mounting portion.

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

[0016] 1. The utility model provides a rim for reducing wind resistance, wherein a plurality of wind-breaking shapes are arranged on the side wall of the rim and are circumferentially arranged around the center point of the rim, wherein the wind-breaking shapes are composed of a plurality of dimple shapes, and the wind-breaking shapes can guide the flow of lateral airflow blowing toward the side wall of the rim, thereby reducing the wind resistance on the side wall of the rim; the wind-breaking shapes composed of a plurality of dimple shapes can utilize the dimple principle on the surface of a golf ball to reduce the lateral resistance generated during the rotation of the rim.

[0017] 2. The surface of the inner ring spoke mounting part is an inner ring wave shape with a continuous concave-convex structure, which can cooperate with the wind-breaking shape to further reduce wind resistance. Furthermore, the convex part of the inner ring wave shape of the inner ring spoke mounting part corresponds to each spoke hole, so that the wind-breaking shape 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 can reduce the headwind and crosswind as a whole, thereby further reducing wind resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view of the wheel of this embodiment;

[0019] Figure 2 yes Figure 1 Middle AA section;

[0020] Figure 3 is a front view of the wind-breaking shape of this embodiment;

[0021] Figure 4 It is a front view of the water droplet pit shape of this embodiment. 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] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0024] Example 1

[0025] like Figure 1-4 As shown, this embodiment provides a rim 10 for reducing wind resistance, including an outer rim tire mounting portion 11 for mounting a tire, an inner rim spoke mounting portion 12 for mounting spokes, and two rim sidewalls 13 relatively arranged between the outer rim tire mounting portion 11 and the inner rim spoke mounting portion 12, wherein the outer rim tire mounting portion 11, the inner rim spoke mounting portion 12 and the two rim sidewalls 13 enclose a cavity. Preferably, the four are integrally formed and made of carbon fiber. The rim 10 for reducing wind resistance also includes a plurality of wind-breaking shapes 16, which are arranged on the rim sidewall 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 sidewall 13, thereby reducing the wind resistance suffered by the rim sidewall 13.

[0026] 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.

[0027] 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.

[0028] like Figure 1-4 As 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.

[0029] like Figure 1-4 As shown, the plurality of dimple shapes 161 are water drop-shaped dimple shapes 161. The water drop-shaped dimple shape can further reduce wind resistance.

[0030] 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.

[0031] The wind-breaking shape 16 is in the shape of a swallow, which can also be called a hook shape, and includes a pointed head 163, an arc-shaped main body 162, and a slender 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 slender tail 164 and the wing 165 extend in the opposite direction of the windward direction.

[0032] 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.

[0033] 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.

[0034] Example 2

[0035] like Figure 1-4 As shown, this embodiment provides a wheel, comprising the wind resistance reducing rim 10 as described in the previous embodiment, as well as a hub 30 and a plurality of spokes 20, wherein the hub 30 is located in the middle of the wind resistance reducing rim 10, the first end of each 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 spokes 20 and / or the hub 30 are made of carbon fiber.

[0036] 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 rim for reducing wind resistance, comprising an outer rim tire mounting portion for mounting a tire, an inner rim spoke mounting portion for mounting spokes, and two rim side walls arranged opposite to each other between the outer rim tire mounting portion and the inner rim spoke mounting portion, characterized in that: It also includes a plurality of wind-breaking shapes, which are arranged on the side walls of the rim and circumferentially arranged around the center point of the rim, and the wind-breaking shapes are composed of a plurality of pit shapes.

2. The wind resistance reducing rim according to claim 1, characterized in that: The pit shape is a water drop shape.

3. The wind resistance reducing rim according to claim 2, characterized in that: The teardrop-shaped pit comprises a front end, a rear tip, and two side surfaces connecting the front end and the rear tip, and the front end faces the windward direction.

4. The wind resistance reducing rim according to claim 1, characterized in that: The wind-breaking shape includes a 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.

5. The wind resistance reducing rim according to claim 4, characterized in that: It is defined that the side of the rim sidewall close to the center of the rim is the inner side, and the side away from the center of the rim is the outer side, the slender tail of the wind-breaking shape is close to the outer side of the rim sidewall, and the wing is close to the inner side of the rim sidewall.

6. The wind resistance reducing rim according to claim 1, characterized in that: The wind-breaking shapes are evenly distributed circumferentially on the side wall of the rim.

7. The wind resistance reducing rim according to claim 6, characterized in that: The wind-breaking shape is arranged on the side wall of the rim 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.

8. The wind resistance reducing rim according to claim 1, characterized in that: The surface of the inner ring spoke mounting portion is an inner ring wave shape with a continuous concave-convex structure.

9. The wind resistance reducing rim according to claim 1, characterized in that: The wind resistance reducing rim is made of carbon fiber.

10. A wheel, characterized in that: It comprises the wind-reducing rim as described in any one of claims 1 to 9, and also comprises a hub and a plurality of spokes, wherein the hub is located in the middle of the wind-reducing rim, the first end of each spoke is respectively connected to or integrally formed with the hub, and the second end of each spoke is respectively connected to or integrally formed with the inner ring spoke mounting portion.

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