TWI626176B - Compound structure of bicycle wheel rim - Google Patents

Abstract

The present invention relates to a composite bicycle rim structure, which mainly comprises an inner ring skeleton and a composite rim body, wherein the inner ring skeleton is provided with an inner ring portion, and the inner ring portion is respectively provided on both sides a side ring portion, a hook portion is formed at an end of the side ring portion, and an opening portion is formed between the two hook portions, and the composite material rim body is wrapped around the inner ring portion and the side ring portion of the inner ring frame The hook portion is formed with a support section at the opening portion; thereby, the lightweight effect of the bicycle rim can be achieved while ensuring the overall structural strength.

Description

Compound bicycle rim structure

The present invention relates to a composite bicycle rim structure, and more particularly to a composite bicycle rim structure having a lightweight effect and an increased structural strength characteristic.

According to the early bicycle rim, as shown in the eighth figure, most of the metal rims (3) [complete metal rim], although it can provide heat-resistant and strong tire receiving parts, but its weight is too heavy, not in line with bicycle light Quantitative trends, so bicycle rims are constantly being redesigned for strength, light weight, aerodynamic design, and simple manufacturing and assembly, so the market and the industry are gradually moving towards full carbon fiber rims (complete Carbon based rim) design.

The traditional carbon fiber rim forming technology is to first set up an annular capsular bag, and inflate the inside of the capsular bag to bulge the sac, and then affix the multi-layer carbon fiber cloth on the outer surface of the capsular bag, wherein the carbon fiber cloth material The number of layers to be applied is changed according to the structural strength required by the rim. Usually, the surface provided for the spokes requires a high structural strength, so the number of layers of the carbon fiber cloth to be attached is about 7 layers, while the rims are other. The structural strength requirement of the part is slightly lower, so the number of layers of the attached carbon fiber cloth is about 5 layers; however, since the conventional carbon fiber rim must be sequentially applied through the layers of the carbon fiber cloth, the construction is carried out. It is quite time consuming and labor intensive. Moreover, due to the thin side of the carbon fiber rim, the high speed and the friction of the sheet during the short braking of the vehicle cause the phenomenon of "burning frame", and the carbon fiber rim is easily deformed by heat, resulting in the tightness between the tire and the rim. Poor air leaks.

For this reason, there is a composite bicycle rim of Taiwan No. M315661, comprising: a composite rim body, which is made of a composite material and has a hollow ring shape, and includes a body portion and a tire receiving portion. The two sides of the body portion respectively have a first side wall and a second side wall, and the two receiving sides of the tire have a first braking surface adjacent to the first side wall and a second side wall adjacent to the second side wall. a second brake surface; a metal reinforced frame body made of a metal material in a hoop shape and completely covered inside the tire receiving portion of the composite material rim body, the metal reinforced frame body having two substantially parallel The continuous lateral side walls may correspond to the first brake surface and the second brake surface, respectively.

Although the above structure achieves the advantages of weight reduction, the strength of the first side wall and the second side wall is not good, and the strength of the joint between the first side wall and the second side wall and the metal reinforcing frame is insufficient. Broken due to external force.

The reason is that the inventor has been rich in design and development and practical production experience of the relevant industry for many years, and has researched and improved the existing structure to provide a composite bicycle rim structure for the purpose of achieving better practical value.

The main object of the present invention is to provide a composite bicycle rim structure, and more particularly to a composite bicycle rim structure having a lightweighting effect and an increase in structural strength characteristics.

The main purpose and effect of the composite bicycle rim structure of the present invention are achieved by the following specific technical means:

The inner ring skeleton is mainly provided with an inner ring frame, and the inner ring frame is provided with an inner ring portion, and the inner ring portion is respectively provided with a side ring portion on both sides, and the two side ring portions are formed with The opening portion, the composite rim body is wrapped around the inner ring portion and the side ring portion of the inner ring frame, and a support portion is formed at the opening portion; thereby, the bicycle wheel rim lightweighting effect can be achieved. At the same time ensure the overall structural strength.

A preferred embodiment of the composite bicycle rim structure of the present invention, wherein the composite rim body includes a first ring segment coated on an outer side of the inner ring portion and a first cover on the outer side of the side ring portion a second ring segment, a third ring segment covering the end of the side ring portion and forming a convex portion, and a support segment at the opening portion.

In a preferred embodiment of the composite bicycle rim structure of the present invention, a hook portion is disposed at an end of the side ring portion, and an opening portion is formed between the two hook portions.

A preferred embodiment of the composite bicycle rim structure of the present invention, wherein the composite rim body includes a first ring segment coated on an outer side of the inner ring portion and a first cover on the outer side of the side ring portion a second ring segment, a third ring segment wrapped around the outside of the hook portion, and a support segment at the opening portion.

A preferred embodiment of the composite bicycle rim structure of the present invention, wherein the composite rim body is made of a carbon fiber composite material, especially a carbon composite material having wear resistance characteristics.

A preferred embodiment of the composite bicycle rim structure of the present invention, wherein the inner ring skeleton is a lightweight metal material such as aluminum, aluminum alloy, molybdenum chrome alloy, titanium alloy or magnesium alloy.

From the above, the composition and use of the structure of the present invention show that the present invention has the following advantages as compared with the existing structure:

1. The composite bicycle rim structure of the present invention utilizes the design of the opening portion to reduce the weight of the overall inner ring frame, and then covers the inner ring skeleton by the light-weight composite rim body, thereby achieving the lightweight effect of the bicycle rim. .

2. The composite bicycle rim structure of the present invention covers the inner ring skeleton by a composite rim body having wear resistance characteristics, and simultaneously connects the openings between the covering hooks to make the hook portions on both sides closely connected. To increase the structural strength of the overall rim.

3. The composite bicycle rim structure of the present invention has the advantages of increasing the overall structural strength by coating the lightweight metal material inside the composite rim body, and at the same time, achieving rapid cooling and cooling when the brake friction rim , in turn, to protect the rim from deformation.

For a more complete and clear disclosure of the technical content, the purpose of the invention and the effects thereof achieved by the present invention, it is explained in detail below, and please refer to the drawings and drawings:

First, please refer to the first to third figures, which are schematic diagrams of a first embodiment of a composite bicycle rim structure according to the present invention, which mainly includes:

An inner ring skeleton (1) is an annular frame body, and includes an inner ring portion (11) corresponding to the same strip, and the inner ring portion (11) is respectively provided with side ring portions (12) on both sides thereof. An opening portion (14) is formed between the side ring portions (12);

a composite rim body (2) correspondingly wrapped on the outside of the inner ring skeleton (1), the composite rim body (2) including a coating on the outer side of the inner ring portion (11) a first ring segment (21), a second ring segment (22) wrapped around the outside of the side ring portion (12), and a portion covering the end of the side ring portion (12) and forming a convex portion (231) a three-ring segment (23) and a support segment (24) at the opening (14).

Please refer to the first to third figures. First, the inner ring skeleton (1) is made of a lightweight metal material such as aluminum, aluminum alloy, molybdenum chrome alloy, titanium alloy or magnesium alloy. The inner ring portion (11) corresponding to the assembled spout is mainly included, and the side ring portion (12) is respectively extended to the two sides of the inner ring portion (11), and the end portion of the side ring portion (12) is mainly It is used to correspond to the tire assembly, and an opening portion (14) is formed between the ring portions (12) on both sides [as shown in the second figure]. Thereafter, the composite rim body (2) is correspondingly coated on the outside of the inner ring skeleton (1), and further the composite rim body (2) is made of a carbon fiber composite material, especially a carbon composite having wear resistance characteristics. Preferably, the composite rim body (2) includes a first ring segment (21) wrapped around the outer side of the inner ring portion (11) and wrapped around the outer side of the side ring portion (12) a second ring segment (22), a third ring segment (23) covering the end of the side ring portion (12) and forming a convex portion (231) [the convex portion can be used for assembling a tire) and The support section (24) at the opening portion (14) is connected to the opening covering the ends of the side ring portions (12) by the support portion (24) to make the two side ring portions (12) more closely connected. When assembling tires, optimum structural strength is achieved, making the overall rim easier to manufacture and stronger and lighter.

In addition, please refer to the fourth figure. When the vehicle brakes, both sides of the rim are rubbed at a high speed with the blade (A) in a short time. The inner ring frame (1) is designed to make the overall rim. It has the strength to withstand external forces, and the high temperature generated by friction can be quickly cooled and cooled by the inner ring skeleton (1), and there is no burning frame and no deformation, so as to maintain the integrity of the rim.

Please refer to the fifth to seventh figures, which are schematic diagrams of the second embodiment of the composite bicycle rim structure of the present invention, which mainly include:

An inner ring skeleton (1) is an annular frame body, and includes an inner ring portion (11) corresponding to the same strip, and the inner ring portion (11) is respectively provided with side ring portions (12) on both sides thereof. a hook portion (13) is disposed at an end of the side ring portion (12), and an opening portion (14) is formed between the two hook portions (13);

a composite rim body (2) correspondingly wrapped on the outside of the inner ring skeleton (1), the composite rim body (2) including a coating on the outer side of the inner ring portion (11) a first ring segment (21), a second ring segment (22) wrapped around the outside of the side ring portion (12), a third ring segment (23) wrapped around the outside of the hook portion (13), and The support section (24) at the opening (14).

Please refer to the fifth to seventh figures. The inner ring skeleton (1) is a hoop-shaped skeleton made of lightweight metal materials such as aluminum, aluminum alloy, molybdenum-chromium alloy, titanium alloy or magnesium alloy. An inner ring portion (11) corresponding to the assembled spoke is included, and a side ring portion (12) is further extended on the two sides of the inner ring portion (11), and a hook portion is formed at the end of the side ring portion (12). (13) The hook portion (13) is provided corresponding to the tire, and an opening portion (14) is formed between the two hook portions (13) [as shown in Fig. 6]. Thereafter, the composite rim body (2) is correspondingly coated on the outside of the inner ring skeleton (1), and further the composite rim body (2) is made of a carbon fiber composite material, especially a carbon composite having wear resistance characteristics. Preferably, the composite rim body (2) includes a first ring segment (21) wrapped around the outer side of the inner ring portion (11) and wrapped around the outer side of the side ring portion (12) a second ring segment (22), a third ring segment (23) wrapped around the outside of the hook portion (13), and a support segment (24) at the opening portion (14), using the support segment (24) The joint between the two hook portions (13) is connected to make the hook portions (13) on both sides more closely connected, and when assembling the tire, the optimal structural strength can be achieved, making the overall rim easier. Made and stronger and lighter.

However, the above-described embodiments or drawings are not intended to limit the structure or the use of the present invention, and any suitable variations or modifications of the invention will be apparent to those skilled in the art.

From the above, the composition and use of the structure of the present invention show that the present invention has the following advantages as compared with the existing structure:

1. The composite bicycle rim structure of the present invention utilizes the design of the opening portion to reduce the weight of the overall inner ring frame, and then covers the inner ring skeleton by the light-weight composite rim body, thereby achieving the lightweight effect of the bicycle rim. .

2. The composite bicycle rim structure of the present invention covers the inner ring skeleton by a composite rim body having wear resistance characteristics, and simultaneously connects the openings between the side ring portions to make the two side rings closely connected. To increase the structural strength of the overall rim.

3. The composite bicycle rim structure of the present invention has the advantages of increasing the overall structural strength by coating the lightweight metal material inside the composite rim body, and at the same time, achieving rapid cooling and cooling when the brake friction rim , in turn, to protect the rim from deformation.

In summary, the embodiments of the present invention can achieve the expected use efficiency, and the specific structure disclosed therein has not been seen in similar products, nor has it been disclosed before the application, and has completely complied with the provisions of the Patent Law. And the request, the application for the invention of a patent in accordance with the law, please forgive the review, and grant the patent, it is really sensible.

this invention

(1) ‧‧‧ Inner Ring Skeleton

(11) ‧‧‧ Inner Ring Department

(12)‧‧‧Side ring department

(13) ‧‧‧Hooks

(14) ‧‧‧ openings

(2) ‧‧‧Multi-purpose rim body

(21)‧‧‧First ring segment

(22) ‧‧‧second ring segment

(23)‧‧‧ Third ring segment

(231) ‧‧‧ convex

(24) ‧‧‧Support section

(A) ‧‧‧

existing

(3)‧‧‧Metal rims

The first figure shows a stereoscopic appearance of the first embodiment of the present invention.

Figure 2 is a schematic view showing the appearance of the inner ring skeleton according to the first embodiment of the present invention.

Third: a schematic cross-sectional view of a first embodiment of the present invention

Fig. 4 is a cross-sectional view showing the clips of the two sides of the present invention

Figure 5 is a perspective view of the three-dimensional appearance of the second embodiment of the present invention

Figure 6 is a schematic view showing the appearance of the inner ring skeleton of the second embodiment of the present invention

Figure 7 is a cross-sectional view showing the second embodiment of the present invention

Figure 8: Schematic diagram of the prior art

Claims (4)

The utility model relates to a composite bicycle rim structure, which mainly comprises: an inner ring skeleton, which is an annular frame body, which comprises an inner ring portion corresponding to the spoke, and the inner ring portion is respectively provided with side ring portions on both sides thereof. An opening portion is formed between the two side ring portions; a composite material rim body is correspondingly wrapped on the outside of the inner ring frame, and the composite material rim body includes a coating on the outer side of the inner ring portion a first ring segment, a second ring segment covering the outer side of the side ring portion, a third ring segment covering the end of the side ring portion and forming a convex portion, and a support segment at the opening portion. The utility model relates to a composite bicycle rim structure, which mainly comprises: an inner ring skeleton, which is an annular frame body, which comprises an inner ring portion corresponding to the spoke, and the inner ring portion is respectively provided with side ring portions on both sides thereof. a hook portion is formed at an end of the side ring portion, and an opening portion is formed between the two hook portions; a composite material rim body is correspondingly wrapped on the outside of the inner ring frame, and the composite material rim body includes a first ring segment covering the outer side of the inner ring portion, a second ring segment covering the outer side of the side ring portion, a third ring segment covering the outer side of the hook portion, and the opening portion The support segment. The composite bicycle rim structure according to claim 1 or 2, wherein the composite rim body is made of a carbon fiber composite material. The composite bicycle rim structure according to claim 1 or 2, wherein the inner ring skeleton is a metal material which is lightweight by using aluminum, aluminum alloy, molybdenum chrome alloy, titanium alloy or magnesium alloy.