TWI389815B - Bicycle slow brake and its brake block - Google Patents

Description

Bicycle buffer and its brake block

The present invention relates to a bicycle buffer, and more particularly to a bicycle buffer for stopping a rim and a brake block thereof.

Referring to Fig. 1, the rim 1 of a general bicycle is mainly controlled by a brake device 2 and stops rotating. The brake device 2 has a two-way arm 21 that can be spaced apart from the rim 1 and a two-way block 22 that is fixed to the brake arm 21 and faces the rim 1. When the braking arms 21 are subjected to an external force to reduce the distance, the braking blocks 22 are frictionally contacted with the rim 1 to achieve the purpose of stopping the rim 1.

However, when the speed of the car is increased and the braking force is too strong, the rim 1 will be locked, which may cause dangers such as slipping, overturning, etc. Therefore, for professional knights, it is possible to control the braking force and gradually Slow down the speed and maintain the handling, thus reducing the probability of danger. However, after all, the professional knight is a minority. For the masses of consumers, the driving force is a cumulative and on-the-spot reaction of experience. Not everyone can control it. Free, but have security concerns.

Accordingly, it is an object of the present invention to provide a bicycle damper having a pre-twisting function and a brake block thereof.

Therefore, the bicycle buffer of the present invention is used for stopping a rim, including a brake set, and a buffer set. The brake set has two twisting arms that can be spaced apart from the rim, and two brake blocks respectively disposed on the brake arm and facing the rim, the brake blocks are after the wheel is narrowed, and the wheel Circle friction contact. The buffer group has at least one magnetic element coupled with the braking arms, the magnetic element generating a gradual strong magnetic field to the rim during the narrowing of the braking arms, and rotating the cutting magnetic field on the rim At this time, a magnetic resistance acting on the rim is generated.

The utility model has the advantages that the pre-twisting function can be generated by the magnetic resistance, the rotation speed of the rim is reduced, thereby improving the stability and safety during the braking operation, and prolonging the service life of the brake block.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Referring to Figures 2, 3 and 4, a preferred embodiment of the bicycle cushioning device of the present invention is for stopping a rim 2. The rim 2 has a wheel frame 21 and a tire 22 surrounding the wheel frame 21. The wheel frame 21 is a conductor. The buffer includes a brake set 3 and a buffer set 4.

The brake train 3 has two brake arms 31 and two brake blocks 32. The brake arms 31 are respectively mounted on the two sides of the rim 2 (not shown), and the distance between the rims 2 and the rim 2 can be reduced. Each of the brake blocks 32 has a base 321 coupled to the brake arm 31 and a block 322 fixed to the base 321 and facing the wheel frame 2 of the rim 2 . The blocks 322 are each a rubber block.

The buffer group 4 has four magnetic elements 41 in the preferred embodiment. The magnetic elements 41 are respectively a permanent magnet material, and are two sets of two wheel frames 21 fixed to the base body 321 and arranged on two sides of the block body 322 to face the rim 2, and have respectively Relative and opposite two poles. It is worth mentioning that the thickness of the block 322 of the brake block 32 in the stopping direction is larger than that of the magnetic element 41.

The magnetic elements 41 respectively located on the two sides of the rim 2 establish a magnetic field between each other. At this time, since the brake arms 31 are located away from the rim 2, the magnetic elements 41 are interposed. The distance is long, so the magnetic field is weak and does not affect the rotational speed of the rim 2.

In the process of relatively narrowing the spacing of the braking arms 31, in addition to the gradual strong magnetic field due to the shortening of the spacing of the magnetic elements 41, the rotating wheel frame 21 also cuts the magnetic field, generating a function acting on the wheel frame 21. The magnetic resistance, and the faster the rotational speed, the stronger the magnetic resistance, and can form a pre-twisting force for the rim 2 and reduce the rotational speed of the rim 2.

Therefore, the present invention can have a pre-twisting function before the block 322 of the brake block 32 is not clamped, and can be used with the brake blocks 32 after the relative distance between the brake arms 31 is relatively reduced. The block 322 is in frictional contact with the rim 2, and the rim 2 is stably stopped.

It can be seen from the above that the bicycle buffer and the brake block of the present invention have the following advantages and effects: the present invention can activate the pre-twist function by magnetic resistance before the brake block is in contact with the rim 2. The wear speed of the blocks 32 of the brake blocks 32 can be slowed down, the service life is prolonged, and it is important that the aforementioned pre-twist function is automatically started regardless of the normal rotation speed, or the downhill rotation speed or the sudden situation. Can reduce the rotation speed of the rim 2 and improve the braking action Stability and security.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

2. . . Rim

twenty one. . . Wheel frame

twenty two. . . Tire

3. . . Brake group

31. . . Brake arm

32. . . Brake block

321. . . Matrix

322. . . Block

4. . . Slow group

41. . . Magnetic component

1 is a front view showing a general bicycle brake; FIG. 2 is a perspective view showing a preferred embodiment of a bicycle buffer and a brake block thereof; and FIG. 3 is a top view of the preferred embodiment. FIG. 4 is a front elevational view of the preferred embodiment.

2. . . Rim

twenty one. . . Wheel frame

twenty two. . . Tire

32. . . Brake block

321. . . Matrix

322. . . Block

4. . . Slow group

41. . . Magnetic component

Claims (8)

A bicycle buffering device for stopping a rim, the rim is a conductor, the damper comprises: a locomotive group having two cymbal arms that can be spaced apart from the rim, and respectively disposed on the braking arm And a second block facing the rim, the brake blocks are in frictional contact with the rim after the brake arms are reduced in pitch; and a buffer set having at least one magnetic element coupled with the brake arms The magnetic element generates a gradual strong magnetic field to the rim during the narrowing of the distance between the braking arms, and a magnetic resistance acting on the rim when the rim rotates the cutting magnetic field. The bicycle cushioning device according to claim 1, wherein the magnetic element has at least two magnetic components, which are respectively disposed opposite to the brake block and face the rim. The bicycle buffer of claim 2, wherein the magnetic elements have opposite magnetic poles. The bicycle buffer according to claim 2, wherein the brake block has a block for stopping the rim, and is coupled to the brake arm and carries the block and the magnetic component. a matrix. The bicycle buffer according to claim 4, wherein the block has a thickness in the stopping direction that is larger than the magnetic element. A brake block for a bicycle buffer for stopping a rim, the rim being a conductor, the brake block comprising: a base body; at least one body fixed to the base body and facing the rim for a rim friction contact; and at least one magnetic component fixed to the base body facing the rim for generating a magnetic field and generating a magnetic resistance acting on the rim when the rim rotates the cutting magnetic field. The brake block of the bicycle buffer of claim 6, wherein the magnetic elements have two and are arranged on two sides of the block. The brake block of the bicycle buffer of claim 6, wherein the block has a thickness in the stopping direction that is larger than the magnetic element.