CN100503354C - Bicycle with improved braking action time difference of hydraulic disc brake front and rear wheel - Google Patents
Bicycle with improved braking action time difference of hydraulic disc brake front and rear wheel Download PDFInfo
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- CN100503354C CN100503354C CNB2007100438548A CN200710043854A CN100503354C CN 100503354 C CN100503354 C CN 100503354C CN B2007100438548 A CNB2007100438548 A CN B2007100438548A CN 200710043854 A CN200710043854 A CN 200710043854A CN 100503354 C CN100503354 C CN 100503354C
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- oil pressure
- wheel
- disc brake
- trailing wheel
- hydraulic
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Abstract
A bicycle improving the hydraulic disc brake front and rear wheels brake actuating time difference is provided, which comprises a frame, a handle, a front wheel unit, a rear wheel unit, a rear wheel hydraulic hand grip, a rear wheel disc brake plate, a rear wheel hydraulic clamping brake device, a rear wheel hydraulic disc brake unit of a rear wheel hydraulic tube provided with a first inner diameter with the rear wheel hydraulic clamping brake device and connected with a front wheel hydraulic hand grip, a front wheel hydraulic hand grip, a front wheel disc brake plate, a front wheel hydraulic clamping brake device and a front wheel hydraulic disc brake unit of a front wheel hydraulic tube provided with a second inner diameter larger than the first inner diameter with the front wheel hydraulic clamping brake device and connected with the front wheel hydraulic hand grip. When the front and rear hydraulic hand grips are switched to a grip state from a loose release state, the front and rear hydraulic clamping brake devices are forced to switch from a loosing state to a brake state and nearly clamp the front and rear wheels disc brake plates at the same time.
Description
Technical field
The invention relates to a kind of bicycle, be meant a kind of bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel especially.
Background technology
Before having now, the bicycle of trailing wheel hydraulic disc brake, before it, before the trailing wheel hydraulic disc brake, back oil pressure pipe generally is to use the oil pressure pipe of identical caliber specification, so, before the rider is with the grip pressure simultaneously of the identical application of force, before the trailing wheel hydraulic disc brake, during back Brake lever, though before it, the hydraulic oil of back oil pressure pipe can flow with identical speed in theory, but, in fact because the length of trailing wheel oil pressure pipe is longer than the length of front-wheel oil pressure pipe, therefore, hydraulic oil in the trailing wheel oil pressure pipe will be subjected to bigger friction drag, and the bigger pipe stream loss due to friction of generation, and the flow velocity that slows down, so that the braking action time of trailing wheel hydraulic disc brake can slightly be longer than the braking action time of front-wheel hydraulic disc brake, so, preceding, will produce significantly braking action time difference between the trailing wheel hydraulic disc brake, therefore, when emergency brake, tend to comparatively fast finish braking action, and influence the balance of controlling of car load because of front-wheel dish hydraulic disc brake.
Summary of the invention
Therefore, purpose of the present invention is promptly providing a kind of front and rear wheel hydraulic disc brake that makes being close to the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel of finishing braking action on the identical time point.
The present invention improves the bicycle of braking action time difference of hydraulic disc brake front and rear wheel, comprises a vehicle frame, leader, a preceding wheel unit, a rear wheel unit, a trailing wheel hydraulic disc brake unit, and a front-wheel hydraulic disc brake unit.This handle is to be installed on this vehicle frame.Should preceding wheel unit be to be installed in rotationally on this vehicle frame.This rear wheel unit is to be installed in rotationally on this vehicle frame.This trailing wheel hydraulic disc brake unit has one and is installed in trailing wheel oil pressure handle, on this handle and is installed in the trailing wheel oil pressure folder brake apparatus that trailing wheel disc brake sheet, on this rear wheel unit is installed on this vehicle frame and is adjacent to this rear wheel unit, and one is connected between this trailing wheel oil pressure handle and this trailing wheel oil pressure folder brake apparatus and has the trailing wheel oil pressure pipe of one first interior caliber.This front-wheel hydraulic disc brake unit has one and is installed in front-wheel oil pressure handle, on this handle and is installed in the front-wheel oil pressure folder brake apparatus that front-wheel disc brake sheet, on this preceding wheel unit is installed on this vehicle frame and is adjacent to this preceding wheel unit, and one be connected between this front-wheel oil pressure handle and this front-wheel oil pressure folder brake apparatus and have the front-wheel oil pressure pipe of caliber in one second, this front-wheel oil pressure pipe second in caliber be the first interior caliber greater than this trailing wheel oil pressure pipe.
Description of drawings
Fig. 1 is the three-dimensional appearance scheme drawing that improves bicycle one preferred embodiment of braking action time difference of hydraulic disc brake front and rear wheel of the present invention;
Fig. 2 is the plan sketch of a trailing wheel hydraulic disc brake unit of this preferred embodiment at a relieving state;
Fig. 3 is the view of a similar Fig. 2, and the plan sketch of a front-wheel hydraulic disc brake unit of this preferred embodiment at a relieving state is described;
Fig. 4 is the view of a similar Fig. 2, illustrates that this trailing wheel hydraulic disc brake unit is at a braking state; And
Fig. 5 is the view of a similar Fig. 3, illustrates that this front-wheel hydraulic disc brake unit is at a braking state.
The specific embodiment
About addressing other technology contents, characteristics and effect before the present invention, in the following detailed description that cooperates with reference to a graphic preferred embodiment, can clearly understand.
Ginseng Fig. 1, Fig. 2, Fig. 3, improve the preferred embodiment of the bicycle of braking action time difference of hydraulic disc brake front and rear wheel for the present invention, this bicycle comprises: a vehicle frame 10, leader 20, a seat cushion 30, one preceding wheel unit 40, a rear wheel unit 50, a driver element 60, a trailing wheel hydraulic disc brake unit 70, and a front-wheel hydraulic disc brake unit 80.
This vehicle frame 10 have pipe 11, before be installed in pipe 11 before this front fork 12, one with should before manage on pipe 11 bonded assemblys 13, one with should before pipe 11 bonded assemblys down pipe 14, one with should go up pipe 13 bonded assembly seat pipes 15, one with these pipe 15 bonded assembly back vents 16, and one and this time manages 14, this seat manages 15, this back vent 16, bonded assembly five-way pipe (scheming not show).
This handle 20 is to manage on 11 before being installed in this.
This seat cushion 30 is to be installed on this pipe 15.
Should preceding wheel unit 40 be to be installed in rotationally on this front fork 12.
This rear wheel unit 50 is to be installed in rotationally on this back vent 16.
This driver element 60 is to be installed on this vehicle frame 10, rotates and can drive this rear wheel unit 60.This driver element 60 has fluted disc 61 before, a rear tooth disk 62, is installed in chain 63, two crank pedal groups 64 on this forward and backward fluted disc 61,62, and one is socketed in this five-way pipe (figure does not show) and can be for the turning cylinder 65 (figure do not show) of this preceding fluted disc 61 with these crank pedal groups 64 installings.
Ginseng Fig. 1, Fig. 2, shown in Figure 4, this trailing wheel hydraulic disc brake unit 70 has one and is installed in trailing wheel oil pressure handle 71, on this handle 20 and is installed in the trailing wheel oil pressure folder brake apparatus 73 that trailing wheel disc brake sheet 72, on this rear wheel unit 50 is installed on this back vent 16 and is adjacent to this rear wheel unit 50, and one is connected in this trailing wheel oil pressure handle 71 and this trailing wheel oil pressure and presss from both sides trailing wheel oil pressure pipe 74 between the brake apparatus 73.
In the present embodiment, this trailing wheel oil pressure handle 71 has one and is installed in body 711, on this handle 20 and is installed in lever 712, on this body 711 swingably and is installed in piston 713 in this body 711 movably, an and pipe link 714 that is connected between this lever 712 and this piston 713, this body 711 has a hydraulic chamber 715, and this piston 713 is to be installed in movably in this hydraulic chamber 715.
This trailing wheel oil pressure folder brake apparatus 73 has one and is installed in the piston 732 that the pedestal 731, two on this back vent 16 is installed in this pedestal 731 respectively movably and is positioned at the two opposite sides of this trailing wheel disc brake sheet 72, reach two and be installed in the brake shoes 733 of these pistons 732 on an end of this trailing wheel disc brake sheet 72 respectively, this pedestal 731 has two hydraulic chamber 734 that are provided with relatively, and an oil circuit 735 that is communicated with these hydraulic chamber 734.
This trailing wheel oil pressure pipe 74 has one first caliber expansion rate, and caliber D1 in one first.This trailing wheel oil pressure pipe 74 is that the body 711 and this trailing wheel oil pressure that are connected in this trailing wheel oil pressure handle 71 press from both sides between the pedestal 731 of brake apparatus 73, and is communicated with the hydraulic chamber 715 of this body 711 and the oil circuit 735 of this pedestal 731.
The lever 712 of this trailing wheel oil pressure handle 71 can be in a pine oil state (see figure 2) and a start between the state (see figure 4) of holding with a firm grip, and the brake shoes 733 of this trailing wheel oil pressure folder brake apparatus 73 can be decontroled start between a state (see figure 2) and the braking state (see figure 4) one.When this lever 712 switches to this when holding the state (see figure 4) with a firm grip from this pine oil state (see figure 2), this lever 712 is pressed in this pipe link 714 can drive this piston 713, hydraulic oil in this hydraulic chamber 715 is squeezed in this trailing wheel oil pressure pipe 74, and related these oil circuit 735 interior hydraulic oil that make are squeezed in these hydraulic chamber 734, force these pistons 732 to drive these brake shoes 733 and switch to this braking state (see figure 4), and clamp this trailing wheel disc brake sheet 72 from this relieving state (see figure 2).
Ginseng Fig. 1, Fig. 3, shown in Figure 5, this front-wheel hydraulic disc brake unit 80 has one and is installed in front-wheel oil pressure handle 81, on this handle 20 and is installed in the front-wheel oil pressure folder brake apparatus 83 that front-wheel disc brake sheet 82, on this preceding wheel unit 40 is installed on this front fork 12 and is adjacent to this preceding wheel unit 40, and one is connected in this front-wheel oil pressure handle 81 and this front-wheel oil pressure and presss from both sides front-wheel oil pressure pipe 84 between the brake apparatus 83.
In the present embodiment, this front-wheel oil pressure handle 81 has one and is installed in body 811, on this handle 20 and is installed in lever 812, on this body 811 swingably and is installed in piston 813 in this body 811 movably, an and pipe link 814 that is connected between this lever 812 and this piston 813, this body 811 has a hydraulic chamber 815, and this piston 813 is to be installed in movably in this hydraulic chamber 815.
This front-wheel oil pressure folder brake apparatus 83 has one and is installed in the piston 832 that the pedestal 831, two on this front fork 12 is installed in this pedestal 831 respectively movably and is positioned at the two opposite sides of this front-wheel disc brake sheet 82, reach two and be installed in the brake shoes 833 of these pistons 832 on an end of this front-wheel disc brake sheet 82 respectively, this pedestal 831 has two hydraulic chamber 834 that are provided with relatively, and an oil circuit 835 that is communicated with these hydraulic chamber 834.
This front-wheel oil pressure pipe 84 has second a caliber expansion rate greater than the first caliber expansion rate of this trailing wheel oil pressure pipe 74, and one greater than this trailing wheel oil pressure pipe 74 first in caliber D1 second in caliber D2.This front-wheel oil pressure pipe 84 is that the body 811 and this front-wheel oil pressure that are connected in this front-wheel oil pressure handle 81 press from both sides between the pedestal 831 of brake apparatus 83, and is communicated with the hydraulic chamber 815 of this body 811 and the oil circuit 835 of this pedestal 831.
The lever 812 of this front-wheel oil pressure handle 81 can be in a pine oil state (see figure 3) and a start between the state (see figure 5) of holding with a firm grip, and the brake shoes 833 of this front-wheel oil pressure folder brake apparatus 83 can be decontroled start between a state (see figure 3) and the braking state (see figure 5) one.When this lever 812 switches to this when holding the state (see figure 5) with a firm grip from this pine oil state (see figure 3), this lever 812 is pressed in this pipe link 814 can drive this piston 813, hydraulic oil in this hydraulic chamber 815 is squeezed in this front-wheel oil pressure pipe 84, and related these oil circuit 835 interior hydraulic oil that make are squeezed in these hydraulic chamber 834, force these pistons 832 to drive these brake shoes 833 and switch to this braking state (see figure 5), and clamp this front-wheel disc brake sheet 82 from this relieving state (see figure 3).
Via above explanation, can again advantage of the present invention be summarized as follows:
Before the rider is somebody's turn to do with identical application of force grip pressure simultaneously, trailing wheel oil pressure handle 80,70 lever 812,712 o'clock, because the second caliber expansion rate of front-wheel oil pressure pipe 84 of the present invention is first caliber expansion rates greater than this trailing wheel oil pressure pipe 74, and, the second interior caliber D2 of this front-wheel oil pressure pipe 84 is first interior caliber D1 greater than this trailing wheel oil pressure pipe 74, therefore, when these hydraulic chamber 815, before hydraulic oil in 715 is squeezed into this respectively, trailing wheel oil pressure pipe 84, in the time of in 74, this front-wheel oil pressure pipe 84 second in caliber D2 will be expanded to more greater than this trailing wheel oil pressure pipe 74 first in caliber D1, so, the flowing velocity of the hydraulic oil in this trailing wheel oil pressure pipe 74 will be faster than the flowing velocity of the hydraulic oil in this front-wheel oil pressure pipe 84.
In view of the above, though the length of trailing wheel oil pressure pipe 74 of the present invention also is the length of being longer than this front-wheel oil pressure pipe 84, to making the hydraulic oil in this trailing wheel oil pressure pipe 74 also can be subjected to bigger friction drag, but, because the hydraulic oil in this trailing wheel oil pressure pipe 74 flowing velocity faster compensates suffered big friction drag, therefore, cry quites down, the braking action time that will be similar to this front-wheel hydraulic disc brake unit 80 of the braking action time of trailing wheel hydraulic disc brake of the present invention unit 70, before being somebody's turn to do, trailing wheel hydraulic disc brake unit 80, braking action time difference between 70 will be much smaller than known bicycle, so, when emergency brake, before of the present invention, trailing wheel hydraulic disc brake unit 80,70 can finish braking action on intimate identical time point, and effectively reduce the influence of car load being controlled balance.
Conclude above-mentioned, the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel of the present invention, not only can make front and rear wheel hydraulic disc brake unit on intimate identical time point, finish braking action, and improve the front and rear wheel braking action time difference, and can when emergency brake, keep the balance of controlling of car load, so can reach the purpose of invention really.
The above person of thought, it only is preferred embodiment of the present invention, when the scope that can not limit the invention process with this, promptly the simple equivalent of being done according to the present patent application claim scope and invention description content generally changes and modifies, and all still belongs in the scope that claim of the present invention contains.
Claims (11)
1. bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel comprises:
One vehicle frame;
The leader is to be installed on this vehicle frame;
Wheel unit before one is to be installed in rotationally on this vehicle frame;
One rear wheel unit is to be installed in rotationally on this vehicle frame;
One trailing wheel hydraulic disc brake unit, have one and be installed in trailing wheel oil pressure handle, on this handle and be installed in the trailing wheel oil pressure folder brake apparatus that trailing wheel disc brake sheet, on this rear wheel unit is installed on this vehicle frame and is adjacent to this rear wheel unit, and one is connected between this trailing wheel oil pressure handle and this trailing wheel oil pressure folder brake apparatus and has the trailing wheel oil pressure pipe of one first interior caliber; And
One front-wheel hydraulic disc brake unit, having one is installed in front-wheel oil pressure handle, on this handle and is installed in the front-wheel oil pressure folder brake apparatus that front-wheel disc brake sheet, on this preceding wheel unit is installed on this vehicle frame and is adjacent to this preceding wheel unit, and one be connected between this front-wheel oil pressure handle and this front-wheel oil pressure folder brake apparatus and have the front-wheel oil pressure pipe of caliber in one second, this front-wheel oil pressure pipe second in caliber be the first interior caliber greater than this trailing wheel oil pressure pipe.
2. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 1, it is characterized by, this trailing wheel oil pressure pipe has more one first caliber expansion rate, and this front-wheel oil pressure pipe has more second a caliber expansion rate greater than this first caliber expansion rate.
3. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 1, it is characterized by, this trailing wheel oil pressure handle has one and is installed in the lever, that the body, on this handle is installed on this body swingably and is installed in this intrinsic piston movably, an and pipe link that is connected between this lever and this piston, this body has a hydraulic chamber, and this piston is to be installed in movably in this hydraulic chamber.
4. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 3, it is characterized by, this trailing wheel oil pressure folder brake apparatus has a pedestal that is installed on this vehicle frame, two pistons that are installed in this pedestal respectively movably and are positioned at the two opposite sides of this trailing wheel disc brake sheet, reach two and be installed in the brake shoes of this piston on an end of this trailing wheel disc brake sheet respectively, this pedestal has two hydraulic chamber that are oppositely arranged, and oil circuit that is communicated with this hydraulic chamber, this trailing wheel oil pressure pipe is that the body and this trailing wheel oil pressure that are connected in this trailing wheel oil pressure handle press from both sides between the pedestal of brake apparatus, and is communicated with the hydraulic chamber of this body and the oil circuit of this pedestal.
5. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 1, it is characterized by, this front-wheel oil pressure handle has one and is installed in the lever, that the body, on this handle is installed on this body swingably and is installed in this intrinsic piston movably, an and pipe link that is connected between this lever and this piston, this body has a hydraulic chamber, and this piston is to be installed in movably in this hydraulic chamber.
6. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 5, it is characterized by, this front-wheel oil pressure folder brake apparatus has a pedestal that is installed on this vehicle frame, two pistons that are installed in this pedestal respectively movably and are positioned at the two opposite sides of this front-wheel disc brake sheet, reach two and be installed in the brake shoes of this piston on an end of this front-wheel disc brake sheet respectively, this pedestal has two hydraulic chamber that are oppositely arranged, and oil circuit that is communicated with this hydraulic chamber, this front-wheel oil pressure pipe is that the body and this front-wheel oil pressure that are connected in this front-wheel oil pressure handle press from both sides between the pedestal of brake apparatus, and is communicated with the hydraulic chamber of this body and the oil circuit of this pedestal.
7. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 1, it is characterized by, this trailing wheel oil pressure handle can be in a pine oil state and a start between the state of holding with a firm grip, this trailing wheel oil pressure folder brake apparatus can start between a relieving state and a braking state, when this trailing wheel oil pressure handle switches to this when holding state with a firm grip from this pine oil state, can force this trailing wheel oil pressure folder brake apparatus to switch to this braking state, and clamp this trailing wheel disc brake sheet from this relieving state.
8. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 1, it is characterized by, this front-wheel oil pressure handle can be in a pine oil state and a start between the state of holding with a firm grip, this front-wheel oil pressure folder brake apparatus can start between a relieving state and a braking state, when this front-wheel oil pressure handle switches to this when holding state with a firm grip from this pine oil state, can force this front-wheel oil pressure folder brake apparatus to switch to this braking state, and clamp this front-wheel disc brake sheet from this relieving state.
9. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 1 more comprises a seat cushion, and this seat cushion is to be installed on this vehicle frame.
10. the bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel according to claim 1 more comprises a driver element, and this driver element is to be installed on this vehicle frame, rotates and can drive this rear wheel unit.
11. a bicycle that improves braking action time difference of hydraulic disc brake front and rear wheel comprises:
One vehicle frame;
The leader is to be installed on this vehicle frame;
Wheel unit before one is to be installed in rotationally on this vehicle frame;
One rear wheel unit is to be installed in rotationally on this vehicle frame;
One trailing wheel hydraulic disc brake unit, have one and be installed in trailing wheel oil pressure handle, on this handle and be installed in the trailing wheel oil pressure folder brake apparatus that trailing wheel disc brake sheet, on this rear wheel unit is installed on this vehicle frame and is adjacent to this rear wheel unit, and one is connected in the trailing wheel oil pressure pipe that this trailing wheel oil pressure handle presss from both sides between the brake apparatus with this trailing wheel oil pressure and has one first caliber expansion rate; And
One front-wheel hydraulic disc brake unit, having one is installed in front-wheel oil pressure handle, on this handle and is installed in the front-wheel oil pressure folder brake apparatus that front-wheel disc brake sheet, on this preceding wheel unit is installed on this vehicle frame and is adjacent to this preceding wheel unit, and one be connected in the front-wheel oil pressure pipe that this front-wheel oil pressure handle and this front-wheel oil pressure press from both sides between the brake apparatus and have one second caliber expansion rate, and the second caliber expansion rate of this front-wheel oil pressure pipe is the first caliber expansion rate greater than this trailing wheel oil pressure pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100438548A CN100503354C (en) | 2007-07-17 | 2007-07-17 | Bicycle with improved braking action time difference of hydraulic disc brake front and rear wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100438548A CN100503354C (en) | 2007-07-17 | 2007-07-17 | Bicycle with improved braking action time difference of hydraulic disc brake front and rear wheel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101108644A CN101108644A (en) | 2008-01-23 |
| CN100503354C true CN100503354C (en) | 2009-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100438548A Active CN100503354C (en) | 2007-07-17 | 2007-07-17 | Bicycle with improved braking action time difference of hydraulic disc brake front and rear wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100503354C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105775021A (en) * | 2014-12-22 | 2016-07-20 | 郭美菁 | Time difference pressure distributing and outputting device |
| US10814850B2 (en) | 2016-05-04 | 2020-10-27 | Ginda New-Tech Co., Ltd. | Hydraulic brake device with a time difference and assembly thereof |
| NZ750085A (en) * | 2016-08-03 | 2019-10-25 | Ginda New Tech Co Ltd | Hydraulic-type time difference-based brake apparatus |
| CN107685825B (en) * | 2016-08-03 | 2019-12-06 | 张瑞龙 | Hydraulic time difference brake device |
| WO2021035519A1 (en) * | 2019-08-27 | 2021-03-04 | 伡安达新科技开发股份有限公司 | Dual-drive mechanical disk brake with dual brake lines |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6070949A (en) * | 1997-03-03 | 2000-06-06 | Honda Giken Kogyo Kabushiki Kaisha | Braking system for a two-wheeled motor vehicle |
| TW469240B (en) * | 2000-05-12 | 2001-12-21 | Taiwan Bicycle Industry R & Am | Automatically sensible controlled hydraulic synchronous brake for bicycle |
| CN2815857Y (en) * | 2005-05-12 | 2006-09-13 | 黄文年 | Hydraulic synchronous braking device of motorcycle |
| CN2863626Y (en) * | 2005-01-20 | 2007-01-31 | 屠炳录 | Dual master cylinder synchronous braking device |
-
2007
- 2007-07-17 CN CNB2007100438548A patent/CN100503354C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6070949A (en) * | 1997-03-03 | 2000-06-06 | Honda Giken Kogyo Kabushiki Kaisha | Braking system for a two-wheeled motor vehicle |
| TW469240B (en) * | 2000-05-12 | 2001-12-21 | Taiwan Bicycle Industry R & Am | Automatically sensible controlled hydraulic synchronous brake for bicycle |
| CN2863626Y (en) * | 2005-01-20 | 2007-01-31 | 屠炳录 | Dual master cylinder synchronous braking device |
| CN2815857Y (en) * | 2005-05-12 | 2006-09-13 | 黄文年 | Hydraulic synchronous braking device of motorcycle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101108644A (en) | 2008-01-23 |
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