TWI651216B - Bicycle carbon fiber rim structure - Google Patents

Abstract

The invention discloses a bicycle carbon fiber rim structure comprising a carbon fiber rim and a steel ring. The carbon fiber rim is an annular ring body having two sidewalls integrally formed, an inner ring wall and an outer ring wall connecting the side walls, and a plurality of inner and outer ring perforations formed through the inner and outer ring walls respectively; wherein Each side wall has a recessed groove. The two sides of the steel ring portion are respectively embedded in the respective slots, and have a plurality of perforations formed corresponding to the perforations of the inner rings. By the composition of the above components, when connected with the spokes and their spoke joints, the steel ring portion is used to provide a preferred locking end face of the spoke joint, thereby avoiding friction between the carbon fiber rim and the spoke joint, thereby causing the loss of the carbon fiber rim damage.

Description

Bicycle carbon fiber rim structure

The present invention relates to the technical field related to bicycle components, and more particularly to a bicycle carbon fiber rim structure.

In addition to the early use of bicycles, the use of bicycles now has a combination of leisure and sports. Plus the improvement and progress of new materials and new processes. The appearance, riding comfort, structural strength, weight and speed of today's bicycles are different from those of the past.

Especially for bicycles used for competition or competition, riding comfort, structural strength, weight and speed are the goals pursued by the drivers, and it is also the best venue for the car manufacturers to show their research and development results.

In order to make the bicycle develop in a lighter direction, the premium models mostly replace the traditional metal rims with carbon fiber rims, which effectively reduce the overall weight of the bicycle by virtue of lightweight carbon fiber.

Referring to FIG. 5, the structure of the conventional carbon fiber rim 90 includes two side walls 91, an inner ring wall 92 connected between the opposite sides of the side walls 91, and a ring connected to the opposite end faces of the side walls 91. Wall 93. The inner ring wall 92 and the outer ring wall 93 respectively have a plurality of matching through holes 921 and working holes 931. Each of the through holes 921 and the working holes 931 are respectively formed and penetrate through the inner and outer ring walls 92 and 93; wherein the through holes 921 The spokes 80 are provided to be connected to the spoke joints 82 to achieve a pulling action, so that the carbon fiber rim 90 can form a true round state and withstand external forces.

Since the spokes 80 must provide support and tension, the force is reflected on the carbon fiber rim through the spoke joint 82, which inevitably causes the periphery of the through hole 921 to form friction with the spoke joint 82, and finally the carbon fiber rim 90 is structurally formed. The destruction.

In order to overcome the above-mentioned deficiencies, the conventional technique utilizes a gasket 84 to achieve a spacing effect, and through the gasket 84, the dispersion spoke joint 82 is applied to the carbon fiber rim 90, but this does not improve the structural strength of the carbon fiber rim 90, and It is necessary to constantly check the degree of damage of the gasket 84 in order to ensure timely replacement of the carbon fiber rim 90.

In view of the above problems and deficiencies of the prior art, the main object of the present invention is to provide a bicycle carbon fiber rim structure. In addition to providing a steel locking surface, the carbon fiber rim structure is improved by the structural design. The benefit of strength.

In accordance with the above objects of the present invention, a bicycle carbon fiber rim structure is provided that includes a carbon fiber rim and a steel ring portion. The carbon fiber rim is an annular ring body having two sidewalls integrally formed, an inner ring wall and an outer ring wall connecting the side walls, and a plurality of inner and outer ring perforations formed through the inner and outer ring walls respectively; wherein Each side wall has a recessed groove. The two sides of the steel ring portion are respectively embedded in the respective slots, and have a plurality of perforations formed corresponding to the perforations of the inner rings. By the composition of the above components, when connected with the spokes and their spoke joints, the steel ring portion is used to provide a preferred locking end face of the spoke joint, thereby avoiding friction between the carbon fiber rim and the spoke joint, thereby causing the loss of the carbon fiber rim damage.

10‧‧‧Carbon wheels

12‧‧‧ side wall

122‧‧‧Inlay

14‧‧‧ Inner Ring Wall

142‧‧‧ Inner ring piercing

16‧‧‧ outer ring wall

162‧‧‧ outer ring piercing

182‧‧‧ axis

184‧‧‧ center line

Θ‧‧‧ angle of inclination

20‧‧‧Steel ring

22‧‧‧ Strengthening Department

24‧‧‧Perforation

26‧‧‧ convex ring

<知知>

80‧‧‧ spokes

82‧‧‧ spoke joint

84‧‧‧Washers

90‧‧‧Carbon wheels

91‧‧‧ side wall

92‧‧‧ Inner Ring Wall

93‧‧‧ outer ring wall

921‧‧‧through hole

931‧‧‧Working holes

Figure 1 is a schematic view of an embodiment of the invention.

Figure 2 is a schematic cross-sectional view showing an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view (I) of the embodiment shown in Fig. 1.

Fig. 4 is a schematic cross-sectional view (II) of the embodiment shown in Fig. 1.

Figure 5 is a schematic cross-sectional view of a conventional carbon fiber rim embodiment.

Hereinafter, the embodiment of the bicycle carbon fiber rim structure of the present invention will be further described with reference to the related drawings. For the purpose of understanding the embodiments of the present invention, the same components are denoted by the same reference numerals.

Referring to Figures 1 to 4, the bicycle carbon fiber rim structure of the present invention comprises a carbon fiber rim 10 and a steel ring portion 20.

The carbon fiber rim 10 is an annular ring body having two side walls 12 integrally formed, an inner ring wall 14 and an outer ring wall 16.

The inner ring wall 14 is connected between the opposite cross-sections of the side walls 12 and has a plurality of inner ring perforations 142. The axis 182 of each inner ring perforation 142 has a tilt angle θ with the centerline 184 of the carbon fiber rim 10 and the inclination angle θ of each adjacent inner ring perforation 142 is opposite to the center line 184 of the carbon fiber rim 10 . In practice, each of the inner ring perforations 142 provides a spoke 80 to extend and locks a spoke joint 82 to form a pulling action on the inner ring wall 14 to allow the carbon fiber rim 10 to form a true circular shape and withstand external forces. .

The outer ring wall 16 is connected to opposite end faces of the side walls 12 and has a plurality of outer ring through holes 162. Each outer ring perforation 162 corresponds to each inner ring perforation 142 and is formed through the outer ring wall 16. In practice, each outer ring aperture 162 is provided with a tool (not shown) for extending the adjustment spoke joint 82.

The technical features of the present invention are:

Each of the side walls 12 has a symmetrical one-way groove 122 at each of the opposite end faces.

The steel ring portion 20 has two side edges embedded in the respective recesses 122, and has a reinforcing portion 22, a plurality of through holes 24 and two convex ring portions 26. The reinforcing portion 22 is formed at a position corresponding to the inner ring wall 14. In the implementation, the reinforcing portion 22 is achieved by the thickness of the material. Each of the through holes 24 is formed to match the inner ring through holes 142 through the steel ring portion 20. Each of the convex ring portions 26 is disposed in parallel along the extending direction of the steel ring portion 20, and is located at an end surface different from the inner ring wall 14 of the steel ring portion 20, and the inner ring through holes 142 are adjacent to the side walls 12 Between the neighbors.

Therefore, the above is a description of various components and assembly methods of the bicycle carbon fiber rim structure according to a preferred embodiment of the present invention. The operating characteristics of the embodiments of the present invention are further described below.

By means of the structural strength and wear resistance provided by the steel ring portion 20, a preferred locking end face of the spoke joint 82 is provided, and the respective ring portion 26 can be matched to provide a greater support for the spoke joint 82 having an angle of inclination. Steel to ensure the integrity of the carbon fiber rim 10.

The above description is only for the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the embodiments of the present invention. Changes that are well known to those skilled in the art are still within the scope of the invention.

Claims (4)

A bicycle carbon fiber rim structure comprising: a carbon fiber rim, which is an annular ring body, having two integrally formed side walls, an inner ring wall and an outer ring wall; each of the side walls has a first end face The inner ring wall is connected between the opposite cross-sections of the side walls, and has a plurality of inner ring perforations, and the axis of each inner ring perforation has an inclination angle with the center line of the carbon fiber rim, and every two two The angle of inclination of the adjacent inner ring perforations and the center line of the carbon fiber rim are opposite to each other; the outer ring wall is connected between the opposite end faces of the side walls and has a plurality of outer ring perforations; The steel ring portion is respectively embedded in each of the recessed grooves, and has a plurality of perforations; each of the perforations is formed by matching each of the inner ring perforations through the steel ring portion. The bicycle carbon fiber rim structure according to claim 1, wherein the steel ring portion further has a reinforcing portion formed corresponding to the inner ring wall position. The bicycle carbon fiber rim structure according to claim 1 or 2, wherein the steel ring portion further has two convex ring portions, each of the convex ring portions being formed in parallel along the extending direction of the steel ring portion, and configured An end surface that is different from the inner ring wall and is adjacent to each of the inner ring holes and adjacent to the side walls. The bicycle carbon fiber rim structure according to claim 3, wherein the axis of each inner ring perforation has an inclination angle with respect to a center line of the carbon fiber rim and an inclination of each inner ring perforation adjacent to each other Angle and the carbon fiber rim The heart line is symmetric to the left and right.