CN2455606Y

CN2455606Y - Anti-lock device for bicycle disc brake

Info

Publication number: CN2455606Y
Application number: CN 00268671
Authority: CN
Inventors: 卓锦煌
Original assignee: LEE CHI MACHINERY CO Ltd
Current assignee: LEE CHI MACHINERY CO Ltd
Priority date: 2000-12-26
Filing date: 2000-12-26
Publication date: 2001-10-24
Anticipated expiration: 2010-12-26

Abstract

The utility model relates to an anti-lock device for bicycle disc brakes. A pressure accumulation chamber of a caliper is communicated with a debooster cylinder in which a piston seat and an elastic element are orderly arranged. Thus, when the caliper is instantly induced and fast exerts on the brake, compressed hydraulic oil can produce oil pressure with the value larger than the set value to push and extrude the piston seat to move and to simultaneously compress the elastic element to release space and to absorb excessive oil pressure energy by using the elastic element. Thus the fast brake action can be moderated to avoid lock of a brake disk or the danger of overturn. The safety and practicality in use can be efficiency increased.

Description

The Bicycle dished brake anti-locking device

The utility model relates to a kind of Bicycle dished brake, particularly relates to a kind ofly preventing moment brake rapidly, causes brake disc locked and produce unexpected Bicycle dished brake anti-locking device.

See also shown in Figure 1, brake with full oil pressure of Regular Bicycle or half hydraulic type disc brake is an example, it mainly is filled with hydraulic oil 101 in clamp 1, and be concaved with a clamping slot 102 in the bottom surface, card 201 for a brake disc 2 passes, and this clamping slot 102 is respectively equipped with a brake facing 103 in both sides, so, just can see through the action that increases or discharge oil pressure, make the brake facing 103 of clamp 1 cooperate the oil pressure effect, cramping forces in the card 201 of brake disc 2, and has braking effect, though said structure can reach the purpose of brake, right, it still has following disappearance and needs to be resolved hurrily when reality is used:

When bicycle is ridden at a high speed, if there is the action of brake rapidly to produce, then in oil pressure moment increase, brake facing 103 crampings of clamp 1 are forced under the situation of brake disc 2, can cause brake disc 2 locked, cause bicycle to have beat to rock, even the danger of overturning believes that many users once had such experience when riding bicycle, be with, if the sense of equilibrium is preferable or react very fast person, or can tide over safely when bicycle seriously rocks, if the sense of equilibrium is relatively poor or the slow person of reaction, especially old man or child, the situation of overturning and damaging is then often arranged, and it obviously can cause prestige association to driving safety, and is not inconsistent safety in utilization.

The purpose of this utility model is to provide a kind of brake that can relax rapidly, avoids locked or dangerous " the Bicycle dished brake anti-locking device " such as take place to overturn of brake disc.

For realizing above-mentioned purpose, the technical solution of the utility model is as follows:

A kind of Bicycle dished brake anti-locking device, mainly in clamp, be provided with a pressure accumulating chamber, and be concaved with a clamping slot in the degree face, pass for a brake disc, and this clamping slot is respectively equipped with a brake facing in both sides, cooperate the pressure effect in the pressure accumulating chamber, make brake facing blocking brake disc, reach braking effect, its characteristics are: the pressure accumulating chamber of these clamp is communicated with a decompression cylinder, and be provided with a piston seat and an elastic element in this decompression cylinder in regular turn, so, when piston rod moment of clamp is bestowed brake rapidly by priming, compressed hydraulic oil will produce the oil pressure greater than setting value, and push piston seat in displacement compression elastic element simultaneously, so as to disengaging the space and utilizing the oil pressure energy of elastic element hyperabsorption, make brake facing finish the brake of retardance brake disc with suitable brake weight.

Thus, the utility model can relax brake rapidly, avoids the danger that brake disc is locked or generation is overturned, and effectively promotes safety and practicality on using.

Below by most preferred embodiment and accompanying drawing Bicycle dished brake anti-locking device of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the front elevation of general clamp and brake disc;

Fig. 2 is the front elevation of the utility model one preferred embodiment and brake disc;

Fig. 3 is the cross-sectional schematic of the above-mentioned preferred embodiment of the utility model;

Fig. 4 is the action scheme drawing of the above-mentioned preferred embodiment of the utility model;

Fig. 5 is the front elevation of another preferred embodiment of the utility model and brake disc;

Fig. 6 is the cutaway view of the utility model the 3rd preferred embodiment;

Fig. 7 is the cutaway view of the utility model the 4th preferred embodiment.

For convenience of description, following embodiment, components identical represents with identical label, and as Fig. 2, shown in Figure 3, this preferred embodiment is to be example with half hydraulic type disc brake, mainly be provided with a decompression cylinder 20 in clamp 10 all sides, and these clamp 10 are provided with a pressure accumulating chamber 11 equally in inside, and are equipped with a piston rod 12, and are concaved with a clamping slot 13 in the bottom surface, and be respectively equipped with a brake 14 in clamping slot 13 both sides, pass clamping slot 13 for the card of a brake disc 30.

This cylinder 20 that reduces pressure, be and 10 body by integral forming of clamp, and be positioned at clamp 10 all sides, and with the pressure accumulating chamber 11 of clamp 10 be connected state, it is provided with a piston seat 21 in inner cylinder sleeve, supplies and an elastic element (present embodiment is for adopting spring) 22 1 end sockets, and is provided with a nut 23 in distolateral spiral shell, and spiral shell is installed with an adjusting lever 24, and adjusting lever 24 ends are replaced at spring 22 end in addition.

Above-mentioned is the utility model preferred embodiment device, the explanation of feature and position, as for its action situation, please consult Fig. 3 again and cooperate consult shown in Figure 4, when a gentle external force sees through the piston rod 12 of brake cable 15 traction clamp 10, this piston rod 12 can compress the hydraulic oil in the pressure accumulating chamber 11, make hydraulic oil drive brake facing 14 crampings and brake disc 30 is bestowed the brake of retardance, at this moment, because the oil pressure value that hydraulic oil produced is still in predetermined value, do not have enough oil pressure and can overcome spring 22 elastic force in the decompression cylinder 20, so, the piston seat 21 of this decompression cylinder 20 and spring 22 neither meeting generation effects.

When rapidly an external force sees through the piston rod 12 of brake cable 15 traction clamp 10, this piston rod 12 can be at the hydraulic oil in the moment compression pressure accumulating chamber 11, at this moment, if the oil pressure that hydraulic oil produces is greater than setting value, this flees just can push piston seat 21 displacements compression spring 22 simultaneously to decompression cylinder 20 interior hydraulic oil, so as to disengaging the space and utilizing the oil pressure energy of spring 22 hyperabsorptions, make brake facing 14 can finish the brake of retardance brake disc 30 with gentle and suitable braking action power.

And this adjusting lever 23 can or revolve the action of moving back by precession, makes adjusting lever 23 adjust the degree of depth that it is positioned at decompression cylinder 20, makes spring 22 be subject to adjusting lever 23 and also can change amount of compression, and then reach the purpose of adjusting braking action power.

In addition, see also shown in Figure 5, it is the front elevation of the utility model second preferred embodiment and disc brake, the utility model also can be suitable for full hydraulic type clamp 40, wherein, these decompression cylinder 20 same and 40 body by integral forming of clamp, and be positioned at clamp 40 all sides, these clamp 40 then see through oil pipe 50 and are connected state with brake crank (figure does not show), so, when rapidly an external force sees through brake, squeeze when sending hydraulic oil to enter clamp 40 via oil pipe 50, if the oil pressure that hydraulic oil produces is greater than setting value, then these hydraulic oil of fleeing to the decompression cylinder 20 just can pushed piston seat 21 displacements compression spring 22 simultaneously, so as to disengaging the space and utilize the oil pressure energy of spring 22 hyperabsorptions, and can finish the brake of retardance brake disc 30 with gentle and suitable braking action power.

Moreover, see also Fig. 6, it is the cutaway view of the utility model the 3rd preferred embodiment, decompression cylinder 20 of the present utility model also can be applicable to full hydraulic type clamp (figure does not show) in the external mode of oil pipe line, it links between brake crank 60 and clamp equally an oil pipe 50, this decompression cylinder 20 then is arranged in the grease chamber 61 of brake crank 60, so, when brake crank 60 is bestowed rapidly a brake, and squeeze when sending hydraulic oil to enter clamp via oil pipe 50, if the oil pressure that hydraulic oil produces is greater than setting value, then this flees just can push piston seat 21 displacements compression spring 22 simultaneously to decompression cylinder 20 interior hydraulic oil, so as to disengaging the space and utilizing the oil pressure energy of spring 22 hyperabsorptions, finish the brake of retardance brake disc 30 with gentle and suitable braking action power.

Secondly, see also shown in Figure 7, it is the cutaway view of the utility model the 4th preferred embodiment, itself and the 3rd preferred embodiment are roughly the same, so repeat no more in this, it does not exist together and only is, this decompression cylinder 20 is to be directly connected in 50 in oil pipe, it can squeeze at oil pipe 50 equally and send in the process of hydraulic oil, if the oil pressure that makes the hydraulic oil generation because of rapidly brake is during greater than setting value, just can utilize the hydraulic oil of fleeing to the decompression cylinder 20 to push piston seat 21, and so as to disengaging the space and utilize the oil pressure energy of spring 22 hyperabsorptions, to ease up and suitable braking action power is finished the brake that blocks brake disc 30 in displacement compression spring 22 simultaneously.

Thus, the utility model has had following listed advantage and effect in fact by said apparatus:

The utility model need only utilize decompression cylinder 20 to disengage the space and utilize the oil pressure energy of spring 22 hyperabsorptions, just can make brake facing 14 finish the brake of retardance brake disc 30 with suitable and gentle braking action power, be with, the utility model can relax brake rapidly, avoid brake disc 30 locked or the danger of overturning takes place, and effectively promote safety and practicality on using.

Claims

1. Bicycle dished brake anti-locking device, mainly in clamp, be provided with a pressure accumulating chamber, and be concaved with a clamping slot in the bottom surface, pass for a brake disc, and this clamping slot is respectively equipped with a brake facing in both sides, cooperate the pressure effect in the pressure accumulating chamber, make brake facing blocking brake disc, reach the effect of brake, it is characterized in that: a decompression cylinder is to be communicated with the pressure accumulating chamber of clamp, and it is provided with a piston seat and an elastic element in regular turn in cylinder, make piston seat must overcome the elastic force ability displacement of elastic element, and have a back stretch.

2. Bicycle dished brake anti-locking device according to claim 1 is characterized in that: this decompression cylinder is provided with an adjusting lever in distolateral spiral shell, makes the adjusting lever end replace at elastic element distolateral.

3. Bicycle dished brake anti-locking device according to claim 1 is characterized in that: this elastic element is a spring.

4. Bicycle dished brake anti-locking device according to claim 1 is characterized in that: this decompression cylinder is one-body molded with clamp, and is positioned at clamp week side.

5. Bicycle dished brake anti-locking device according to claim 1 is characterized in that: this decompression cylinder is to be communicated with clamp with pipeline.

6. Bicycle dished brake anti-locking device according to claim 1 is characterized in that: this decompression cylinder is to link with brake crank, and this brake crank then is communicated with clamp with pipeline.