CN219790431U - Linkage brake system - Google Patents
Linkage brake system Download PDFInfo
- Publication number
- CN219790431U CN219790431U CN202321317710.8U CN202321317710U CN219790431U CN 219790431 U CN219790431 U CN 219790431U CN 202321317710 U CN202321317710 U CN 202321317710U CN 219790431 U CN219790431 U CN 219790431U
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- China
- Prior art keywords
- brake
- lever
- cylinder
- plunger
- linkage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000003921 oil Substances 0.000 claims abstract description 55
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 8
- 230000007423 decrease Effects 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 claims 1
- 238000000418 atomic force spectrum Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
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- Transmission Of Braking Force In Braking Systems (AREA)
Abstract
The utility model relates to a linkage brake system, which comprises a linkage brake unit and an independent brake unit, wherein the linkage brake unit comprises a first brake master cylinder, a first brake caliper, a brake wire and a first brake oil pipe, the first brake master cylinder comprises a first brake lever, a first cylinder body, a first plunger, a first spring and a first oil chamber, the lever is pivoted on the first cylinder body through a first pivot point, the first brake lever is pivoted on the lever through a second pivot point, and the first brake lever is provided with a first positioning part and a second positioning part; the first brake oil pipe can convey hydraulic oil of the first brake master cylinder to the first brake caliper to generate a braking effect, and the brake wire can transmit force applied by the first positioning part to the independent brake unit to achieve a linkage braking effect. A gap is formed between the second positioning portion and the lever, and an elastic member is installed in the gap. Therefore, the buffer of the elastic piece can reduce the instant change of soft and hard operation hand feeling.
Description
Technical Field
The present utility model relates to a linkage brake system, and more particularly to a linkage brake system suitable for a motorcycle.
Background
To improve the riding safety of the motorcycle, the government popularizes and installs the linkage brake system for the vehicle safety related laws so as to effectively shorten the brake distance.
Referring to fig. 1 to 4, there are shown a conventional linkage brake system, a view in a direction a of fig. 1, a sectional view A-A of fig. 2, and an enlarged view of a first master cylinder. The prior art linkage brake system 9 includes an independent brake unit 9a and a linkage brake unit 9b, the linkage brake unit 9b includes a first brake master cylinder 91, a first brake caliper 93, a first brake oil pipe 96 and a brake wire 98, the first brake master cylinder 91 includes a first cylinder 911, a first brake lever 912, a first plunger 913, a first oil chamber 914, a lever 915 and a first spring 916, a first cylinder 911 is accommodated in a space containing the first plunger 913, the first oil chamber 914 and the first spring 916, the first spring 916 connects the first cylinder 911 and the first plunger 913 and applies a spring force to the first plunger 913 for a long time, the lever 915 is pivoted to the first cylinder 911 by a first pivot point 9111, the lever 915 has a pushing portion 9151 capable of directly or indirectly pushing the first plunger 91912, the first brake lever 9152 is pivoted to the lever 912, and the first brake is provided with a first positioning portion 9121 and a second positioning portion 22; the first brake oil pipe 96 can convey hydraulic oil of the first brake master cylinder 91 to the first brake caliper 93 to generate a braking effect, and the brake wire 98 can transmit the force applied by the first positioning portion 9121 to the independent brake unit 9a to achieve a linkage braking effect.
Fig. 5 to 7 are respectively a cross-sectional view of a first actuation state, a cross-sectional view of a second actuation state, and a force curve of a force applied by a brake wire and an oil pressure of a first oil chamber of a conventional linkage brake system. As shown in fig. 3 and 5, when the first brake lever 912 is operated, the force applied by the first positioning portion 9121 is transmitted to a carriage 926 of the independent brake unit 9a via the brake wire 98, and at the same time, the second pivot point 9152 is subjected to the pushing force from the first brake lever 912, so that the pushing portion 9151 of the lever 915 drives the first plunger 913 to move, and the first oil chamber 914 generates the oil pressure, and at this time, the relationship between the force applied by the brake wire 98 and the oil pressure is shown in fig. 7, the vertical axis of fig. 7 is the force applied by the brake wire 98, the horizontal axis is the oil pressure generated by the first oil chamber 914 of the first brake master cylinder 91 being pushed by the first plunger 913, and the relationship shown in the first operating state of the conventional linkage brake system shown in fig. 5 is shown in a line segment L1 in fig. 7. As shown in fig. 6, when the first brake lever 912 continues to increase the force applied thereto, the second positioning portion 9122 will contact the lever 915, and the force applied at the moment of contact is shown as a point P1 in fig. 7, at this time, if the force is applied to the first brake lever 912 again, the increasing magnitude of the force applied to the first positioning portion 9121 will decrease, however, the decreased force applied portion will be directly transmitted to the lever 915 via the second positioning portion 9122, and at the same time, the pushing force from the first brake lever 912 will be continuously received at the second pivot point 9152, so that the oil pressure in the first oil chamber 914 will continuously rise, as shown by a line L2 in fig. 7.
However, as shown in fig. 7, in the conventional linkage brake system, when the first brake lever 912 is operated, the force is transferred from the line segment L1 to the line segment L2, and the turning angle A1 of the turning between the line segment L1 and the line segment L2 is large, so that the user has a bad sense of change of the operation hand feel from soft to hard.
The inventor has made many studies and experiments to complete the present utility model, which is a linking brake system that solves the above problems.
Disclosure of Invention
The main purpose of the present utility model is to provide a linkage brake system, wherein an elastic member is additionally arranged between a lever and a first brake lever, and the elastic member is arranged on the lever or the first brake lever by bolts. When the first brake lever is operated, the buffer of the elastic piece can be utilized to reduce the instant change of the soft and hard operation hand feeling. Therefore, the utility model can solve the problem that the operation hand feeling of a user has bad change feeling from soft to hard obviously when the first brake lever is operated in the prior art.
In order to achieve the above-mentioned objective, the linkage brake system of the present utility model includes a linkage brake unit and an independent brake unit, the linkage brake unit includes a first brake master cylinder, a first brake caliper, a brake wire and a first brake oil pipe, the first brake master cylinder includes a first brake lever, a first cylinder, a first plunger, a first spring and a first oil chamber, the first cylinder accommodates the first plunger, the first spring and the first oil chamber, the first spring connects the first cylinder and the first plunger and applies a spring force to the first plunger for a long time, so as to reset the first plunger when the first brake lever is not operated, the lever is pivoted to the first cylinder by a first pivot point, the lever has a pushing portion capable of directly or indirectly pushing the first plunger, so that the force applied by the first brake lever is transmitted to the first plunger via the lever, the first brake lever is pivoted to the lever by a second pivot point, and the first brake lever is provided with a first positioning portion and a second positioning portion; the first brake oil pipe can convey hydraulic oil of the first brake master cylinder to the first brake caliper to generate a braking effect, and the brake wire can transmit force applied by the first positioning part to the independent brake unit to achieve a linkage braking effect.
A gap is arranged between the second positioning part of the linkage brake system and the lever, and an elastic piece is arranged in the gap. Therefore, when the first brake lever is operated to continuously apply force, the instant change of the soft and hard operation hand feeling can be eliminated, and the operation hand feeling of a user is optimized by utilizing the buffer of the elastic piece.
The elastic piece can be fixed on the lever; alternatively, the elastic member may be fixed to the first brake lever.
On the other hand, when the first brake lever is applied, the gap can be reduced along with the increase of the applied force, the second positioning part can indirectly apply force to the lever through the elastic part, and the instant change of the operation hand feeling of a user can be eliminated through the buffering of the elastic part.
The independent brake unit may include a second brake master cylinder, a second brake caliper, and a second brake oil pipe, where the second brake master cylinder may include a second brake lever, a rocker arm, a carriage, a second cylinder, a second plunger, a second spring, and a second oil chamber, where the second cylinder may have a second plunger, a second spring, and a second oil chamber in a receiving space of the second cylinder, the second spring may connect the second cylinder and the second plunger and may apply a spring force to the second plunger for a long time, the rocker arm may be pivotally connected to the second cylinder, the carriage may be pivotally connected to the rocker arm, the second brake lever may be pivotally connected to the second cylinder, the second brake lever may rotate when rotated, the rocker arm may rotate when pulled by the brake wire, and the rocker arm may directly or indirectly push the second plunger when rotated, where the second brake oil pipe may transfer hydraulic oil of the second brake master cylinder to the second brake caliper to generate a braking effect.
The foregoing summary and the following detailed description are exemplary in nature and are intended to further illustrate the utility model as claimed. Other objects and advantages of the present utility model will be apparent from the following detailed description and the accompanying drawings.
Drawings
FIG. 1 is a diagram of a conventional interlocking brake system.
Fig. 2 is a view in the direction a of fig. 1.
Fig. 3 is a cross-sectional view A-A of fig. 2.
FIG. 4 is a cross-sectional view of a first master cylinder of a conventional brake system.
FIG. 5 is a cross-sectional view of a first actuation state of a first master cylinder of a conventional linkage brake system.
FIG. 6 is a cross-sectional view of a second actuation state of a first master cylinder of a conventional linkage brake system.
FIG. 7 is a force curve diagram of the force applied by the brake wire and the oil pressure in the first oil chamber of the conventional linkage brake system.
FIG. 8 is a cross-sectional view of an interlock brake system according to an embodiment of the present utility model.
FIG. 9 is a cross-sectional view of a first master cylinder according to one embodiment of the present utility model.
FIG. 10 is a cross-sectional view of a first brake master cylinder in a first actuated state according to an embodiment of the present utility model.
FIG. 11 is a cross-sectional view showing a second actuation state of the first master cylinder according to an embodiment of the present utility model.
Fig. 12 is a force curve diagram of the force applied by the brake wire and the oil pressure of the first oil chamber of the linkage brake system according to an embodiment of the present utility model.
FIG. 13 is a cross-sectional view of a first master cylinder according to another embodiment of the present utility model.
Description of main reference numerals:
9,100a,100b linkage brake system
a,9a independent brake unit
b,9b linkage brake unit
1,91 first brake master cylinder
11,911 first cylinder
111,9111 first pivot point
112,9112 brake wire fixing seat
12,912 first brake lever
121,9121 first positioning portion
122,9122 second positioning portion
13,913 first plunger
14,914 a first oil chamber
15,915 lever
151,9151 push part
152,9152 second pivot point
16,916 first spring
17. Elastic piece
18. Bolt
2,92 second brake master cylinder
21,921 second cylinder
211,9211 rebound spring
22,922 second brake lever
23,923 second plunger
24,924 a second oil chamber
25,925 rocker arm
26,926 carriage
27,927 second spring
3,93 first brake caliper
4,94 second brake caliper
5,95 handle
6,96 first brake oil pipe
7,97 second brake oil pipe
8,98 brake wire
A1, A2, A3 turning angle
L1, L2, L3 segment
P1, P2, P3 points
Detailed Description
Referring to fig. 8 to 9, a cross-sectional view of a linkage brake system and a cross-sectional view of a first master cylinder according to an embodiment of the utility model are shown. The linkage brake system 100a is shown to include an independent brake unit a and a linkage brake unit b, wherein the independent brake unit a includes a second brake master cylinder 2, a second brake caliper 4 and a second brake oil pipe 7, and the second brake master cylinder 2 includes a second cylinder 21, a second brake lever 22, a rocker arm 25 and a carriage 26. The second cylinder 21 is assembled on one side of the handle 5, and the accommodating space thereof accommodates a second plunger 23, a second oil chamber 24, and a second spring 27, the second spring 27 connecting the second cylinder 21 and the second plunger 23 and applying a spring force to the second plunger 23 for a long time for resetting the second brake lever 22 when it is not operated. In addition, the second brake lever 22 and the rocker arm 25 are pivoted to the second cylinder 21, the carriage 26 is pivoted to the rocker arm 25, and the carriage 26 is connected to a brake wire 8 by a rebound spring 211, wherein the rebound spring 211 provides a spring force for resetting the carriage 26 and the rocker arm 25. The rocker arm 25 can be rotated when the second brake lever 22 rotates, the rocker arm 25 can be rotated when the carriage 26 is pulled by the brake wire 8, and the second plunger 23 can be directly or indirectly pushed when the rocker arm 25 rotates, so that hydraulic oil of the second brake master cylinder 2 is conveyed to the second brake caliper 4 through the second brake oil pipe 7 to generate a braking effect.
On the other hand, the linkage brake unit b includes a first brake master cylinder 1, a first brake caliper 3, a first brake oil pipe 6 and a brake wire 8, and the first brake master cylinder 1 includes a first cylinder 11, a first brake lever 12, a lever 15 and an elastic member 17. The first cylinder 11 is assembled on the handle 5, and the accommodating space thereof accommodates a first plunger 13, a first oil chamber 14 and a first spring 16, wherein the first spring 16 connects the first cylinder 11 and the first plunger 13 and applies a spring force to the first plunger 13 for a long time, so as to reset the first brake lever 12 when not operated. The brake wire 8 is fixed on a brake wire fixing seat 112 of the first cylinder 11. In addition, the first brake lever 12 is provided with a first positioning portion 121 and a second positioning portion 122, and the first brake lever 12 is pivotally connected to the lever 15 by a second pivot point 152, the lever 15 has a pushing portion 151 capable of directly or indirectly pushing the first plunger 13, and the lever 15 is pivotally connected to the first cylinder 11 by a first pivot point 111. The first brake oil pipe 6 can convey hydraulic oil of the first brake master cylinder 1 to the first brake caliper 3 to generate a braking effect, and the brake wire 8 can transmit the force applied by the first positioning portion 121 to the independent brake unit a via the carriage 26 and the rocker arm 25 to achieve a linkage braking effect. In the present embodiment, a gap is formed between the second positioning portion 122 and the lever 15, and an elastic member 17 is disposed in the gap, and the elastic member 17 is fixed to the lever 15 by a bolt 18.
Fig. 10 to 12 are respectively a cross-sectional view of a first actuation state of a first brake master cylinder, a cross-sectional view of a second actuation state, and a force curve diagram of a force applied by a brake wire of a linkage brake system and an oil pressure of a first oil chamber according to an embodiment of the present utility model. When the first brake lever 12 is acted upon, the gap becomes smaller as the force applied increases, and the second positioning portion 122 indirectly applies force to the lever 15 via the elastic member 17, so that the force applied by the brake wire 8 and the oil pressure of the first oil chamber 14 are the line segment L1 in fig. 12 before the elastic member 17 is not contacted by the second positioning portion 122 of the first brake lever 12. As shown in fig. 10, when the first brake lever 12 continues to increase the force applied thereto, the second positioning portion 122 contacts the elastic member 17 (the force applied thereto at the moment of contact is shown as a point P2 in fig. 12), and the force applied thereto presses the elastic member 17, so that the force applied to the brake wire 8 and the oil pressure of the first oil chamber 14 are the line segment L2 in fig. 12, and the angle between the line segment L1 and the line segment L2 is the turning angle A2. As shown in fig. 11, when the first brake lever 12 continues to increase the force applied thereto, the elastic member 17 reaches the maximum deformation (the moment the elastic member 17 reaches the maximum deformation is shown as a point P3 in fig. 12), and thereafter the force applied to the brake wire 8 and the oil pressure of the first oil chamber 14 are the line segment L3 in fig. 12, and the angle between the line segment L2 and the line segment L3 is the turning angle A3. By utilizing the buffering of the elastic member 17, the turning angle A1 in fig. 7 can be divided into the turning angle A2 and the turning angle A3, that is, the turning angle A1 is equal to the sum of the turning angle A2 and the turning angle A3, so that the relationship between the force applied by the brake wire 8 and the oil pressure of the first oil chamber 14 is modified into three segments with different slopes, and the instantaneous change of the soft and hard operation hand feeling can be reduced, thereby improving the operation hand feeling of the user.
Referring to FIG. 13, a cross-sectional view of a first master cylinder according to another embodiment of the present utility model is shown. There is shown a linkage brake system 100b similar to the linkage brake system 100a of fig. 8 described above, except that the resilient member 17 is secured to the first brake lever 12 by a bolt 18. In addition, the function of the linkage brake system 100b is similar to that of the linkage brake system 100a, and thus will not be described herein.
The foregoing embodiments are merely illustrative, and the scope of the utility model is defined by the claims rather than by the foregoing embodiments.
Claims (5)
1. The linkage brake system comprises a linkage brake unit and an independent brake unit, wherein the linkage brake unit comprises a first brake master cylinder, a first brake caliper, a brake wire and a first brake oil pipe, the first brake master cylinder comprises a first brake lever, a first cylinder body, a first plunger, a first spring and a first oil chamber, a containing space of the first cylinder body is provided with the first plunger, the first spring and the first oil chamber, the first spring is connected with the first cylinder body and the first plunger and exerts a spring force on the first plunger for a long time, the lever is pivoted on the first cylinder body through a first pivot point, the lever is provided with a pushing part capable of directly or indirectly pushing the first plunger, the first brake lever is pivoted on the lever through a second pivot point, and the first brake lever is provided with a first positioning part and a second positioning part; the first brake oil pipe can convey hydraulic oil of the first brake master cylinder to the first brake caliper to generate a braking effect, and the brake wire can transmit the force applied by the first positioning part to the independent brake unit to achieve a linkage braking effect;
it is characterized in that a gap is arranged between the second positioning part and the lever, and an elastic piece is arranged in the gap.
2. The brake system of claim 1, wherein the resilient member is secured to the lever.
3. The brake system of claim 1, wherein the resilient member is secured to the first brake lever.
4. The brake system of claim 1, wherein the gap decreases as the force applied by the first brake lever increases, the second positioning portion indirectly applying force to the lever via the resilient member.
5. The linkage brake system according to claim 1, wherein the independent brake unit comprises a second brake master cylinder, a second brake caliper and a second brake oil pipe, the second brake master cylinder comprises a second brake lever, a rocker arm, a carriage, a second cylinder, a second plunger, a second spring and a second oil chamber, the second cylinder is accommodated in the accommodation space of the second cylinder, the second spring is connected with the second cylinder and the second plunger and applies a spring force to the second plunger for a long time, the rocker arm is pivoted to the second cylinder, the carriage is pivoted to the rocker arm, the second brake lever is pivoted to the second cylinder, the rocker arm is rotated when the second brake lever rotates, the carriage is rotated when being pulled by the brake wire, the rocker arm is directly or indirectly pushed by the second spring, and the second brake oil pipe can convey hydraulic oil of the second brake master cylinder to the caliper of the second brake to generate a braking effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321317710.8U CN219790431U (en) | 2023-05-29 | 2023-05-29 | Linkage brake system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321317710.8U CN219790431U (en) | 2023-05-29 | 2023-05-29 | Linkage brake system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219790431U true CN219790431U (en) | 2023-10-03 |
Family
ID=88182620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321317710.8U Active CN219790431U (en) | 2023-05-29 | 2023-05-29 | Linkage brake system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219790431U (en) |
-
2023
- 2023-05-29 CN CN202321317710.8U patent/CN219790431U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |