TWM559845U - Bicycle brake - Google Patents

Abstract

A bicycle brake is fixed to a bicycle by a fixed rod at the upper end of a base a first extension arm and a second extension arm extending correspondingly and symmetrically downwardly, wherein the first extension arm and the second extension arm are respectively located on two sides of a rim, the first extension arm A first clamping arm and a lower end of the second clamping arm are respectively disposed at a lower end of the second extending arm, and a fixing member and a wire hole member are respectively fixed on one side and the side of the upper end of the first clamping arm, and the second The upper end of the clamping arm is pivotally disposed on a side of the same fixing member, and the first clamping arm and the second clamping arm are respectively coupled with a braking member; thereby obtaining synchronous and balanced pressing on both sides of the rim The braking action is consistent and the braking can be effectively performed, and the assembly cost and the processing cost installed on the bicycle frame are reduced.

Description

Bicycle brake

The present invention relates to a bicycle brake, which mainly refers to a brake that clamps a bicycle rim and generates friction to decelerate or stop the traveling rim.

(1) As shown in the Republic of China new patent certificate numbers M359498 and M342332, the conventional bicycle brakes are screwed to the frame by the top of the inverted V-shaped fixing piece and the bottom of the inverted V-shaped wing. The upper fork tube (as shown in M359498), even more need to be combined with a locking fixture behind the inverted V-shaped fixing piece to be coupled to the fork tube on the frame (as shown by M342332); therefore, in order to combine the brakes To the two forks on the frame, the frame needs to be separately processed or formed with screw holes for the brakes to be installed and fixed, which not only increases the processing cost of the frame, but also increases the cost of brake assembly and parts. (2) Another conventional bicycle braker is provided with an asymmetric two-C-arm assembly, and the first arm assembly is pulled toward the side of the wheel through the brake wire, and then the second arm assembly is brought closer to Move the other side of the rim so that the rim can be clamped together by the two arm assemblies to achieve the purpose of braking. However, in this configuration, the two arm assemblies of the brake cannot swing synchronously to clamp the rim, so that the two arm assemblies generate a time difference when respectively clamping the two sides of the rim, thereby causing inconsistent braking action and unable to effectively brake. And the deviation occurs, and when the vehicle is braked, the force will be biased on one side, and the brake block on one side will be excessively worn for a long time, thereby affecting the performance of the rear brake. There is even a problem of brake failure. In addition, since the brake actuation mode is to gradually press the rim in a unilateral step, and then the rim is clamped bilaterally, the time from the unilateral to the bilateral clamping of the rim is not immediately possible to cope with the emergency. The suspension of the situation is quite dangerous for the rider. It is obvious that the structural design of the conventional bicycle brake is poor and still needs to be improved. Therefore, how to improve the structure of the bicycle brake to improve safety and reduce the assembly cost and processing cost derived from installing the brake to the bicycle frame, and to carry out research and development and improvement, is the goal of the relevant industry to develop.

In view of the fact that in order to integrate the conventional bicycle brake to the frame, the two forks on the frame need to be separately processed or formed into a joint hole for the brake device to be installed and fixed, which not only increases the processing cost of the frame, but also increases the brake device. Cost and part cost are set. In addition, the asymmetrical two C-arm assemblies cannot swing synchronously to clamp the rim, so that the two-arm assembly will produce a time difference when clamping the two sides of the rim, resulting in inconsistent braking action and stress. It will focus on one side, and in the long run, the unilateral brake block will be excessively worn, which will affect the performance of the rear brake and even cause the problem of brake failure.

The present invention provides a bicycle brake device that is placed at a preset position of a wheel rim, comprising: a base, the upper end of which is fixed to a preset position of a bicycle frame by a fixed rod, and corresponding and symmetrical a first extending arm and a second extending arm extending downwardly, and the first extending arm and the second extending arm are respectively located on two sides of the rim; a first clamping arm, the lower end of the first clamping arm is pivotally disposed at the a lower end of the first extension arm, and a fixing member and a wire hole member are respectively fixed on one side and the side of the upper end; and a second clamping arm is pivotally disposed at a lower end of the second extending arm. And a pulley is pivotally disposed on one side of the same fixing member; and two braking members are respectively coupled to the first clamping arm and the second clamping arm.

The effect of this creation is that when the bicycle brake is coupled to the frame, the two forks of the frame need not be separately processed for the two brake holes for the brake device to be installed and fixed, thereby reducing the processing cost of the frame and the cost of installing the brake device. In addition, the first clamping arm and the second clamping arm are synchronously inwardly oscillated close to the rim, so that the braking members coupled to the first clamping arm and the second clamping arm are synchronized and balanced against the rim. The two sides will not produce a time difference, and the braking action can be effectively braked. The two sides of the rim will balance the force, and will not cause excessive wear of the unilateral brakes, which will affect the braking performance and the brake failure. The problem.

[this creation]

1‧‧‧ rims

10‧‧‧ Pedestal

101‧‧‧ Fixed rod

11‧‧‧First extension arm

12‧‧‧Second extension arm

20‧‧‧First clamp arm

201‧‧‧Long trough

21‧‧‧Fixed parts

22‧‧‧Wire hole parts

221‧‧ Thread segment

23‧‧‧ screw holes

30‧‧‧Second clamp arm

301‧‧‧Long trough

31‧‧‧ pulley

40‧‧‧Brakes

50‧‧‧Return spring

60‧‧‧ brake line

The first picture is a three-dimensional combination of the creation.

Figure 2 is an exploded view of the creation.

Figure 3 is a schematic view showing the first clamp arm and the second clamp arm of the present invention in a normal state.

Figure 4 is a schematic view showing the state in which the first clamp arm and the second clamp arm clamp the rim.

In order to enable your review committee to have a better understanding and understanding of the purpose, characteristics and efficacy of this creation, please refer to the following example for a brief description of the following:

Please refer to Figures 1~4 for a comprehensive overview of the bicycle brakes. The first position of the rim 1 includes a pedestal 10, the upper end of which is fixed to a preset position of a bicycle frame by a fixing rod 101, and correspondingly and symmetrically extends downwardly with the first extending arm 11 And the second extension arm 12, and the first extension arm 11 and the second extension arm 12 are respectively located on two sides of the rim 1; a first clamp arm 20, the lower end of which is pivotally disposed on the first extension The lower end of the arm 11 is fixed with a fixing member 21 and a wire hole member 22, and a side of the upper end of the first clamping arm 20 is provided with a screw hole 23, and the wire hole member 22 is provided. The threaded portion 221 is screwed to the screw hole 23 by the threaded portion 221; a second clamping arm 30 is pivotally disposed at a lower end of the second extending arm 12 And a pulley 31 is pivotally disposed on one side of the same fixing member 21; the two brake members 40 are coupled to the first clamping arm 20 and the second clamping arm 30, respectively.

The pulley 31 is pivotally coupled to the second clamp arm 30 in a screw-locking manner.

The two return springs 50 are respectively disposed between the pivotal position of the first clamp arm 20 and the first extension arm 11 and the pivotal position of the second clamp arm 30 and the second extension arm 12, and the return spring is One end of each of the first clamping arm 20 and the second clamping arm 30 is opposite to the first extending arm 11 and the second extending arm 12, respectively.

The first clamping arm 20 and the second clamping arm 30 are respectively formed with elongated slots 201, 301, and the braking members 40 are respectively screwed to the first clamping arm 20 and the second clamping member so as to be movable up and down. On the arm 30.

With the above structure and composition design, the operation of the present invention will be described as follows:

First, the bicycle brake is directly fixed to the preset position of the bicycle frame by the fixing rod 101, and a brake wire 60 is passed through the first clamping arm from the first to the inner side of the first clamping arm 20. 20 The upper wire hole member 22 is further wound around the pulley 31 of the second clamping arm 30 and returned, and the end of the brake wire 60 is fixed to the fixing member 21 of the first clamping arm 20. Therefore, when the rider performs the braking action and pulls the brake wire 60, the first clamping arm 20 and the second clamping arm 30 will swing relative to each other to brake the first clamping arm 20 and the second clamping arm 30. The pieces 40 will respectively abut the two sides of the rim 1. When the braking line 60 is released after the braking action is completed, the pivotal position between the first clamping arm 20 and the first extending arm 11 and the pivotal position of the second clamping arm 30 and the second extending arm 12 are Because of the elastic force of the return spring 50, the first clamping arm 20 and the second clamping arm 30 will swing relative to the original outwardly outwardly and away from the rim 1 to avoid the braking members. 40 continues to contact the two sides of the rim 1 for friction.

By the structure of the above specific embodiment, the following benefits can be obtained:

(1) The bicycle brake of the present invention is only coupled to the frame by the fixing rod 101, and the double fork tube on the frame does not need to be separately processed, or a plurality of coupling holes or hollow protruding columns are formed for the brake device to be fixed. Only the fixing rod 101 and the frame are locked, which not only reduces the processing cost of the frame, but also reduces the installation cost and the component cost of the brake.

(2) When the rider pulls the brake wire 60, the first clamp arm 20 and the second clamp arm 30 synchronously swing inward correspondingly, and the brake member 40 coupled to the first clamp arm 20 and the second clamp arm 30 is engaged. At the same time and balanced against the two sides of the rim 1 without a time difference, the brake action is consistent and can effectively brake, and when the vehicle is braked, the two sides of the rim 1 will balance the force, and will not cause a single side Excessive wear of the brake member 40, which in turn affects the performance of the brakes afterwards, and even causes problems with brake failure.

(3) Since the brake actuation mode is based on the two brake members 40 and simultaneously sandwiching the two sides of the rim 1, the brake actuation process can be shortened and the vehicle can be immediately and immediately braked to cope with an emergency stop. The rider can improve braking performance, safety and practicality.

In summary, the present invention can effectively solve the problem of the conventional creation and can be easily implemented by those skilled in the art, but the above is only one preferred embodiment of the present invention. However, it is not possible to limit the scope of the implementation of this creation; that is, the equivalent changes and modifications made by the applicant in accordance with the scope of the patent application for this creation shall remain within the scope of this creation patent.

Claims (5)

A bicycle brake device is disposed at a preset position of a wheel rim, comprising: a base, wherein the upper end is fixed to a preset position of a bicycle frame by a fixing rod, and correspondingly and symmetrically extends downwardly An extension arm and a second extension arm, and the first extension arm and the second extension arm are respectively located on two sides of the rim; a first clamping arm, the lower end of which is pivotally disposed at a lower end of the first extension arm And a fixing member and a wire hole member are respectively fixed on one side and the side of the upper end; a second clamping arm is pivotally disposed at a lower end of the second extending arm, and the upper end thereof is fixed at the same One of the members is pivotally provided with a pulley; the two brake members are coupled to the first clamping arm and the second clamping arm, respectively. The bicycle brake device according to claim 1, wherein the first clamp arm side is provided with a screw hole, and the wire hole member has a threaded portion, and the wire hole member is screwed and fixed by the thread portion In the screw hole. The bicycle brake according to claim 1, wherein the pulley is pivotally coupled to the second clamp arm in a screw-lock configuration. The bicycle brake according to claim 1, wherein the two return springs are respectively disposed between the first clamp arm and the first extension arm pivoting position and the second clamp arm and the second extension arm pivotal position. Between the two ends of the first clamping arm and the second clamping arm and the other ends of the returning spring are opposite to the first extending arm and the second extending arm. The bicycle brake device according to claim 1, wherein the first clamping arm and the second clamping arm are formed with an elongated slot, and the braking member is respectively screwed to the first The clamp arm and the second clamp arm.