A wind resistance reducing rim and wheel

Abstract

The utility model provides 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, the wind-breaking shapes are composed of a plurality of pit shapes, and the wind-breaking shapes composed of the plurality of pit shapes can utilize the principle of the pits on the surface of a golf ball to reduce the lateral resistance generated during the rotation of the rim.

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 with 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, wherein the outer contour of the wind-breaking shape is an inverted triangle shape, and there is a peak edge in the middle of the inverted triangle.

[0006] In one embodiment, the peak edge is formed by a line connecting a vertex of the inverted triangle and a point on an opposite side of the vertex.

[0007] In one embodiment, the opposite sides are parallel to the outer edge of the rim side wall.

[0008] In one embodiment, the height of the peak edge is high, the height of the two side edges of the inverted triangle is low, and there is a transition from the peak edge to the two side edges.

[0009] 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.

[0010] In one embodiment, the surface of the inner ring spoke mounting portion is an inner ring wave shape having a continuous concave-convex structure.

[0011] In one embodiment, the convex portion of the inner ring wave shape of the inner ring spoke mounting portion corresponds to each spoke hole, and also roughly corresponds to the apex of the wind-breaking shape.

[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 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 outer contour of the wind-breaking shapes is an inverted triangle shape, wherein there is a peak edge in the middle of the inverted triangle, 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.

[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, and also roughly corresponds to the apex of the wind-breaking shape. In this way, the wind-breaking shape can guide the lateral airflow and correspond to the spoke position and the inner ring wave shape. 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 yes Figure 3 The H-axis is the rotated view;

[0022] Figure 5 is a front view of a wheel in another improved embodiment;

[0023] Figure 6 It is a front view of the wind-breaking shape in another improved embodiment. DETAILED DESCRIPTION

[0024] 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.

[0025] The utility model is now further described in conjunction with the accompanying drawings and specific implementation methods.

[0026] Example 1

[0027] 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 15, which are arranged on the rim sidewall 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 sidewall 13, thereby reducing the wind resistance suffered by the rim sidewall 13.

[0028] 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.

[0029] 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.

[0030] like Figure 1-4 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.

[0031] 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.

[0032] 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.

[0033] Example 2

[0034] This embodiment is further improved on the basis of embodiment 1. Figure 5-6 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 in Embodiment 1. 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.

[0035] Example 3

[0036] like Figure 1-6 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.

[0037] 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. The outer contour of the wind-breaking shape is an inverted triangle shape, and there is a peak edge in the middle of the inverted triangle.

2. The wind resistance reducing rim according to claim 1, characterized in that: The peak edge is formed by a line connecting a vertex of the inverted triangle and a point on an opposite side of the vertex.

3. The wind resistance reducing rim according to claim 2, characterized in that: The opposite sides are parallel to the outer edges of the rim side walls.

4. The wind resistance reducing rim according to claim 2, characterized in that: The height of the peak edge is high, and the heights of the two side edges of the inverted triangle are low, and transition is made from the peak edge to the two side edges.

5. The wind resistance reducing rim according to claim 1, 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.

6. 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.

7. The wind resistance reducing rim according to claim 6, characterized in that: The convex portion of the inner ring wave shape of the inner ring spoke mounting portion corresponds to each spoke hole, and also roughly corresponds to the apex of the wind-breaking shape.

8. The wind resistance reducing rim according to claim 1, characterized in that: At least partially overlapping layered staggered arrangements are provided on the surface of the wind-breaking shape.

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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