CN2226560Y - Slave common bicycle's brake - Google Patents

Abstract

The utility model relates to a slave common bicycle's brake, mainly comprising a brake strip, an adjusting bolt, a nut, a brake sheet, a brake rubber block, etc. The slave common brake of bicycle is characterized in that the two inner sides of the brake strip movably connects with a torsion spring and the brake sheet into a whole respectively through a rivet. The both ends of the torsion spring present hook shape, one end is situated at the bottom end surface of the upper part of the brake strip, and the other end is situated at the end surface of the lower part of the brake strip and the brake sheet. After the brake sheet is stressed, the torsion spring is oppressed, and the brake sheet can rotate that a rivet shaft is taken as the shaft. A barrier sheet which can limit to move upwards is arranged on the brake sheet. The utility model has the advantages of reasonable structure design, simple manufacture process, low cost, good brake performance and high sensitivity, and the utility model can replace the existing bicycle's brake.

Description

Trailing type ordinary bicycle brake

The utility model relates to a kind of bicycle brake, particularly a kind of trailing type ordinary bicycle brake.

In existing technology, general ordinary bicycle brake all is to pass through bolt on the lock bar, direct fixing brake rubber box, be fitted with brake rubber block on it, two guide pillars on the lock bar are in respectively in two brake clip grooves, after transmission by power makes brake rubber block and moving rim contacts, utilize friction force and reach and slow down and the purpose of braking.But the weak point of this structure brake maximum is: braking effect is undesirable, poor sensitivity.At present; the bicycle brake that also has a kind of spinning type structure, this structure mainly are to utilize brake clip to head on outer-drawing fork, and in draw fork that brake rubber box is housed the part of the force be open type; unprotect device in addition; so each glancing impact, in draw fork that the stressed part of brake rubber box is housed all will to be out of shape once, along with the increase of braking number of times; will make it become nonvolatil distortion; thereby reduce or lose braking effect, moreover, the complex structure of this brake, processing difficulties, cost height.

The purpose of this utility model provides a kind of reasonable in design, and manufacture technology is simple, and cost is low, and is easy to use, and deceleration and stopping performance is good, and is highly sensitive, the trailing type bicycle brake of replaceable existing bicycle brake.

The utility model is realized by following measure

The utility model is the adjustable bolt that is installed by lock bar and upper end thereof, be fitted with setting nut on it, locknut, the guide pillar that its lower end installs, brake lining, formations such as brake rubber block, be characterized in: in two inboards of lock bar respectively by rivet with torsion spring, brake lining and its flexible connection are one, the two ends of torsion spring are hook solid, one end is in the top bottom face of lock bar, the other end is in the lock bar, the lower end surface of brake lining, after brake lining is stressed, the compressing torsion spring, brake lining can be that axle rotates with the rivet shaft, at an end face of brake lining one washer that can limit upward movement is arranged, on one lateral bending Qu Youyi plane, pass through flat bolt on it, nut is equipped with a brake rubber box, is fitted with brake rubber block on it.

Washer described in the utility model also can be fixed on the brake lining by the mode of welding.

About 0.8-1 millimeter of the diameter of torsion spring described in the utility model.

Advantage of the present utility model is: reasonable in design, and manufacture technology is simple, and cost is low, and deceleration and stopping performance is good, and is highly sensitive, and replaceable existing bicycle brake is a kind of desirable bicycle use brake.

Description of drawings:

Fig. 1 is an integral structure scheme drawing of the present utility model.

Fig. 2 is the lateral plan of Fig. 1.

Among the figure: 1, setting nut 2, adjusting bolt 3, locknut 4, lock bar

5, torsion spring 6, rivet 7, brake lining 8, brake rubber block

9, brake rubber box 10, nut 11, guide pillar 12, packing ring

13, flat bolt 14, washer

Below in conjunction with accompanying drawing, embodiment provided by the utility model is described further.

The utility model is to have an adjustable bolt 2 to be fitted with a setting nut 1 on it by the fixing riveted joint of lock bar 4 and upper end position thereof, locknut 3, fixing respectively riveted joint has a guide pillar 11 in its both sides, lower end, two inboards at lock bar midway location are passed through rivet 6 respectively, with torsion spring 5, brake lining 7 is movably riveted on it, (during riveted joint, torsion spring can be clipped between rivet cap and the lock bar, but also torsion spring can be clipped in the rivet between head and the brake lining) torsion spring about 0.8-1 millimeter its two ends of diameter of adopting are hook solid, one end is in the top bottom face of lock bar, the other end is in the lock bar, the lower end surface of brake lining, after brake lining is stressed, the compressing torsion spring, brake lining can be that axle rotates with the rivet shaft, in the bending of the lower surface of brake lining one washer 14 that can limit upward movement is arranged, washer also can be fixed on the brake lining by the mode of welding, in the opposite side bending of brake lining one plane is arranged, pass through flat bolt 13 and packing ring 12 on it respectively, nut 10 is fixed with a brake rubber box 9, is fitted with brake rubber block 8 on it.

When the cyclist is slowed down bicycle as required or is stopped, pressure-raising bicycle brake handle, (is example with the back brake) is by known transmission device on the bicycle, power is passed to adjusting bolt 2, because the guide pillar 11 on the lock bar 4 is arranged in the brake clip groove (figure does not draw) on the bicycle, so when pulling force travels forward lock bar 4, close up more more, when rim that brake rubber block 8 contact movements, power not high as the rim rotating speed or the pressure-raising brake lever is little, because of linear velocity not high, and make brake rubber block 8 and rim produce the torsion that the force of inertia that is tangentially produced behind the friction force is not enough to overcome torsion spring 5, so can not produce brake lining 7 and move downward, bicycle is in and slows down or stopped process at a slow speed.

When if the cyclist needs emergency braking when running at high speed, the pressure-raising brake lever as long as the cyclist exerts oneself rapidly, when brake rubber block contacts with the rim of high speed rotating, because linear velocity height, brake rubber block is with after rim contacts, moment certainly leads to the force of inertia of big tangential direction, therefore power is bigger, be enough to overcome the torsion of torsion spring and brake lining is rotated down, and with lock bar 4 shapes of frame in the brake clip groove (is with the rivet shaft axle rotate) in an angle, constitute self-locking state, so bicycle is stopped rapidly.

Claims (3)

1, a kind of trailing type ordinary bicycle brake is the adjustable bolt (2) that is installed by lock bar (4) and upper end thereof, be fitted with setting nut (1) on it, locknut (3), the guide pillar that its lower end installs (11), brake lining (7), brake rubber block formations such as (8), it is characterized in that: pass through rivet (6) respectively with torsion spring (5) in two inboards of lock bar, brake lining (7) is an one with its flexible connection, the two ends of torsion spring are hook solid, one end is in the top bottom face of lock bar, the other end is in the lock bar, the lower end surface of brake lining is after brake lining (7) is stressed, compressing torsion spring (5), brake lining can be that axle rotates with the rivet shaft, at an end face of brake lining one washer (14) that can limit upward movement is arranged, on one lateral bending Qu Youyi plane, pass through bolt (13) on it, nut (10) is equipped with a brake rubber box (9), is fitted with brake rubber block (8) on it.

2, trailing type ordinary bicycle brake according to claim 1 is characterized in that washer (14) also can be fixed on the brake lining by welding manner.

3, trailing type ordinary bicycle brake according to claim 1 is characterized in that about 0.8-1 millimeter of the diameter of torsion spring (5).

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