CN219790431U - Linked braking system - Google Patents

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

Linked braking system

Technical field

The utility model relates to an interlocking braking system, in particular to an interlocking braking system suitable for motorcycles.

Background technique

In order to improve motorcycle riding safety, the government has promoted the installation of linked braking systems in accordance with vehicle safety laws to effectively shorten braking distances.

Please refer to Figures 1 to 4, which are respectively diagrams of the existing linked braking system, a view in the direction A of Figure 1, a cross-sectional view along the line A-A in Figure 2, and an enlarged view of the first brake master cylinder. The figure shows an existing linked braking system 9, which includes an independent braking unit 9a and a linked braking unit 9b. The linked braking unit 9b includes a first brake master cylinder 91, a first brake caliper 93, and a first brake caliper 93. A 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 The first spring 916. The accommodation space of the first cylinder 911 accommodates 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 a spring force is exerted on the first plunger 913 for a long time. The lever 915 is pivotally connected to the first cylinder 911 with a first pivot point 9111. The lever 915 has a push part 9151 that can directly or indirectly push the first plunger 913. , the first brake lever 912 is pivotally connected to the lever 915 with a second pivot point 9152. The first brake lever 912 is provided with a first positioning part 9121 and a second positioning part 9122; wherein, the first brake oil pipe 96 can connect the first The hydraulic oil of the brake master cylinder 91 is delivered to the first brake caliper 93 to produce a braking effect. The brake wire 98 can transmit the force of the first positioning part 9121 to the independent braking unit 9a to achieve a linked braking effect.

Please refer to Figures 5 to 7 together, which are respectively sectional views of the first actuation state of the first brake master cylinder of the existing linked braking system, a sectional view of the second actuation state, and the force application of the brake wire and the first actuation state. The stress curve of the oil pressure in the oil chamber. As shown in FIGS. 3 and 5 , when the first brake lever 912 exerts force, the force exerted by the first positioning part 9121 will be transmitted to a carriage 926 of the independent brake unit 9a via the brake wire 98. At the same time, in the second The pivot point 9152 will receive the thrust from the first brake lever 912, causing the push portion 9151 of the lever 915 to drive the first plunger 913 to move, allowing the first oil chamber 914 to generate oil pressure. At this time, the force exerted by the brake wire 98 The relationship with oil pressure is shown in Figure 7. The vertical axis of Figure 7 is the force exerted by the brake wire 98, and the horizontal axis is the force generated by the first oil chamber 914 of the first brake master cylinder 91 pushed by the first plunger 913. The relationship between the oil pressure and the first actuation state of the conventional linked brake system shown in Figure 5 is shown in line segment L1 in Figure 7 . As shown in Figure 6, when the first brake lever 912 continues to increase the force, the second positioning portion 9122 will contact the lever 915. The force situation at the moment of contact is shown as point P1 in Figure 7. At this time, if the force continues to increase, When applying force to the first brake lever 912, the increase in force of the first positioning part 9121 will be reduced. However, the reduced force part will be directly transmitted to the lever 915 through the second positioning part 9122, and at the same time at the second pivot point 9152 will also continue to receive the thrust from the first brake lever 912, causing the oil pressure in the first oil chamber 914 to continue to rise, as shown by line segment L2 in Figure 7.

However, as shown in Figure 7, when the first brake lever 912 is operated in the existing linked braking system, the force is switched from the line segment L1 to the line segment L2. Since the turning angle A1 of the line segment L1 and the line segment L2 is relatively large, the use of The user's operating feel will have an obvious undesirable change from soft to hard.

For this reason, the inventor, in the spirit of active invention, was eager to think of a linked braking system that could solve the above problems. After several studies and experiments, he finally completed the present utility model.

Utility model content

The main purpose of the present utility model is to provide a linked braking system by adding an elastic member between the lever and the first brake lever, and the elastic member is mounted on the lever or the first brake lever with bolts. When operating the first brake lever, the cushioning of the elastic member can be used to reduce the instantaneous change in soft or hard operating feel. Therefore, the present invention can solve the problem in the prior art that when operating the first brake lever, the user's operating feel will have an undesirable change from soft to hard.

In order to achieve the above purpose, the interlocking braking system of the present invention includes an interlocking braking unit and an independent braking unit. The interlocking braking unit includes a first brake master cylinder, a first brake caliper, a brake wire and a first brake caliper. A brake oil pipe, a first brake master cylinder including a first brake lever, a lever, a first cylinder, a first plunger, a first spring and a first oil chamber, the accommodation space of the first cylinder A first plunger, a first spring and a first oil chamber are accommodated. The first spring connects the first cylinder and the first plunger and exerts a spring force on the first plunger for a long time to prevent the first plunger from being operated when the first plunger is not operated. When the lever is braked, it is reset. The lever is pivotally connected to the first cylinder with a first pivot point. The lever has a push part that can directly or indirectly push the first plunger to transmit the force of the first brake lever through the lever. Transmitted to the first plunger, the first brake lever is pivoted to the lever with a second pivot point. The first brake lever is provided with a first positioning part and a second positioning part; wherein, the first brake oil pipe can The hydraulic oil from the master cylinder is delivered to the first brake caliper to produce a braking effect. The brake wire can transmit the force of the first positioning part to the independent braking unit to achieve a linked braking effect.

There is a gap between the second positioning part of the above-mentioned linked braking system and the lever, and an elastic member is installed in the gap. Therefore, by utilizing the buffering of the elastic member, when the first brake lever is operated and the force is continuously applied, the instantaneous change of the soft and hard operating feel can be eliminated and the user's operating feel can be optimized.

The above-mentioned elastic member can be fixed on the lever; or the elastic member can also be fixed on the first brake lever.

On the other hand, when the first brake lever is activated by applying force, the gap can become smaller as the force is increased, and the second positioning portion can indirectly apply force to the lever through the elastic member. Through the buffering of the elastic member, the use of the brake lever can be eliminated. Instantaneous changes in the user's operating feel.

The above-mentioned independent brake unit may include a second brake master cylinder, a second brake caliper and a second brake oil pipe. The second brake master cylinder may include a second brake lever, a rocker arm, a drag plate, a second The cylinder body, a second plunger, a second spring and a second oil chamber. The accommodation space of the second cylinder body can accommodate the second plunger, the second spring and the second oil chamber. The second spring can accommodate The second cylinder is connected to the second plunger and a spring force can be exerted on the second plunger for a long time. The rocker arm can be pivotally connected to the second cylinder, the carriage can be pivotally connected to the rocker arm, and the second brake lever can be pivotally connected. Connected to the second cylinder, when the second brake lever rotates, the rocker arm can rotate. When the carriage is pulled by the brake wire, the rocker arm can rotate. When the rocker arm rotates, the second plunger can be directly or indirectly pushed. Among them, the second The brake oil pipe can transport the hydraulic oil from the second brake master cylinder to the second brake caliper to produce a braking effect.

The above summary and the following detailed description are exemplary in nature and are intended to further illustrate the patentable scope of the present invention. Other purposes and advantages of the present invention will be explained in the following specific implementation modes and drawings.

Description of the drawings

Figure 1 is a diagram of the existing linked braking system.

Figure 2 is a view in direction A of Figure 1 .

FIG. 3 is a cross-sectional view along line A-A of FIG. 2 .

Figure 4 is a cross-sectional view of the first brake master cylinder of the existing linked brake system.

Figure 5 is a cross-sectional view of the first brake master cylinder of the conventional linked brake system in its first actuation state.

Figure 6 is a cross-sectional view of the first brake master cylinder of the conventional linked brake system in its second actuation state.

Figure 7 is a force curve diagram of the force applied by the brake wire of the existing linked brake system and the oil pressure in the first oil chamber.

Figure 8 is a cross-sectional view of a linked braking system according to an embodiment of the present invention.

Figure 9 is a cross-sectional view of the first brake master cylinder according to an embodiment of the present invention.

Figure 10 is a cross-sectional view of the first brake master cylinder in the first actuation state according to an embodiment of the present invention.

Figure 11 is a cross-sectional view of the first brake master cylinder in the second actuation state according to an embodiment of the present invention.

Figure 12 is a force curve diagram of the force applied by the brake wire and the oil pressure in the first oil chamber of the linked braking system according to an embodiment of the present invention.

Figure 13 is a cross-sectional view of the first brake master cylinder according to another embodiment of the present invention.

Description of main component symbols:

9,100a,100b linked braking system

a,9a independent braking unit

b,9b linked brake unit

1,91 1st brake master cylinder

11,911 First cylinder block

111,9111 First pivot point

112,9112 Brake wire holder

12,912 First brake lever

121,9121 First Positioning Department

122,9122 Second Positioning Department

13,913 First plunger

14,914 First oil chamber

15,915 Leverage

151,9151 push department

152,9152 Second pivot point

16,916 First Spring

17 elastic parts

18 bolts

2,92 Second brake master cylinder

21,921 Second cylinder block

211,9211 Rebound spring

22,922 Second brake lever

23,923 Second plunger

24,924 Second oil chamber

25,925 Rocker Arm

26,926 carriage

27,927 Second Spring

3,93 1st 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 cable

A1,A2,A3 turning angle

L1,L2,L3 line segments

P1,P2,P3 points

Detailed ways

Please refer to FIGS. 8 to 9 , which are respectively a cross-sectional view of the linked braking system and a first brake master cylinder according to an embodiment of the present invention. The figure shows a linked braking system 100a, including an independent braking unit a and a linked braking unit b, where the independent braking unit a includes a second brake master cylinder 2, a second brake caliper 4 and a second brake The oil pipe 7 and the second brake master cylinder 2 include a second cylinder 21, a second brake lever 22, a rocker arm 25 and a drag plate 26. The second cylinder 21 is assembled on one side of the handle 5, and its accommodation space accommodates a second plunger 23, a second oil chamber 24 and a second spring 27. The second spring 27 is connected to the second cylinder. The body 21 and the second plunger 23 exert a spring force on the second plunger 23 for a long time to reset the second brake lever 22 when the second brake lever 22 is not operated. In addition, the second brake lever 22 and the rocker arm 25 are pivotally connected to the second cylinder 21, the carriage 26 is pivotally connected to the rocker arm 25, and the carriage 26 is connected to a brake wire 8 through a rebound spring 211, and the rebound spring 211 can provide a spring force to reset the carriage 26 and the rocker arm 25. When the second brake lever 22 rotates, the rocker arm 25 can rotate. When the carriage 26 is pulled by the brake wire 8, the rocker arm 25 can also rotate. When the rocker arm 25 rotates, it can directly or indirectly push the second plunger 23, and then through The second brake oil pipe 7 delivers the hydraulic oil from the second brake master cylinder 2 to the second brake caliper 4 to produce a braking effect.

On the other hand, the linked 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. 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 its accommodation space accommodates a first plunger 13, a first oil chamber 14 and a first spring 16. The first spring 16 connects the first cylinder 11 and The first plunger 13 exerts a spring force on the first plunger 13 for a long time to reset the first brake lever 12 when it is not operated. The brake wire 8 is fixed on a brake wire holder 112 of the first cylinder 11 . In addition, the first brake lever 12 is provided with a first positioning part 121 and a second positioning part 122, and the first brake lever 12 is pivoted to the lever 15 with a second pivot point 152, and the lever 15 has a push button that can be pushed directly or indirectly. The push portion 151 of the first plunger 13 and the lever 15 are pivotally connected to the first cylinder 11 through a first pivot point 111 . Among them, the first brake oil pipe 6 can transport the hydraulic oil of the first brake master cylinder 1 to the first brake caliper 3 to produce a braking effect, and the brake wire 8 can transmit the force of the first positioning part 121 through the carriage 26 and the rocker arm. 25 is transmitted to the independent braking unit a to achieve the linked braking effect. In this embodiment, there is a gap between the second positioning part 122 and the lever 15 , and an elastic member 17 is installed in the gap, and the elastic member 17 is fixed on the lever 15 through a bolt 18 .

Please refer to Figures 10 to 12 together, which are respectively a cross-sectional view of the first brake master cylinder in the first operating state, a cross-sectional view of the second operating state and a brake wire of the linked brake system according to an embodiment of the present invention. The force curve of the applied force and the oil pressure in the first oil chamber. When the first brake lever 12 applies force to act, the above-mentioned gap will become smaller as the force increases, and the second positioning part 122 will indirectly apply force to the lever 15 through the elastic member 17. Therefore, the elastic member 17 has not been pressed by the first brake lever 12. Before the second positioning portion 122 of the brake lever 12 comes into contact, the force applied by the brake wire 8 and the oil pressure in the first oil chamber 14 are the line segment L1 in FIG. 12 . As shown in Figure 10, when the first brake lever 12 continues to increase the force, the second positioning portion 122 contacts the elastic member 17 (the force situation at the moment of contact is shown as point P2 in Figure 12), and is squeezed by the force. Press the elastic member 17. At this time, the force exerted by the brake wire 8 and the oil pressure in the first oil chamber 14 is the line segment L2 in Figure 12, and the angle between the line segment L1 and the line segment L2 is the turning angle A2. As shown in Figure 11, when the first brake lever 12 continues to increase the force, the elastic member 17 reaches the maximum deformation amount (the force situation at the moment when the elastic member 17 reaches the maximum deformation amount is shown as point P3 in Figure 12), Thereafter, the force exerted by the brake wire 8 and the oil pressure in the first oil chamber 14 is 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. Utilizing the buffering of the elastic member 17, the turning angle A1 in the original figure 7 can be divided into the turning angle A2 and the turning angle A3. That is to say, the turning angle A1 is equal to the sum of the turning angle A2 and the turning angle A3, thereby making the brake wire The relationship between the applied force of 8 and the oil pressure of the first oil chamber 14 is modified into three line segments with different slopes, which can reduce the instantaneous change of soft and hard operating feel and improve the user's operating feel.

Please refer to FIG. 13 , which is a cross-sectional view of the first brake master cylinder according to another embodiment of the present invention. The figure shows a linked braking system 100b, which is similar to the linked braking system 100a of FIG. 8 mentioned above. The difference is that the elastic member 17 is fixed on the first brake lever 12 through a bolt 18. In addition, the functions of the linked braking system 100b are similar to those of the linked braking system 100a, so they will not be described again here.

The above-mentioned embodiments are only examples for convenience of explanation. The scope of rights claimed by the present utility model should be subject to the scope of protection claimed in the patent application documents, and is not limited to the above-mentioned embodiments.

Claims (5)

1. A linked braking system, including a linked braking unit and an independent braking unit. The linked braking 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 lever, a first cylinder, a first plunger, a first spring and a first oil chamber. The accommodation space of the first cylinder accommodates There is the first plunger, the first spring and the first oil chamber. The first spring connects the first cylinder and the first plunger and exerts a spring force on the first plunger for a long time. The lever Pivotably connected to the first cylinder with a first pivot point, the lever has a push portion that can directly or indirectly push the first plunger, and the first brake lever is pivoted to the lever with a second pivot point, The first brake lever is provided with a first positioning part and a second positioning part; wherein, the first brake oil pipe can transport the hydraulic oil of the first brake master cylinder to the first brake caliper to produce a braking effect. The wire can transmit the force exerted by the first positioning part to the independent braking unit to achieve a linked braking effect; It is characterized in that there is a gap between the second positioning part and the lever, and an elastic member is arranged in the gap. 2. The linked braking system of claim 1, wherein the elastic member is fixed on the lever. 3. The linked braking system of claim 1, wherein the elastic member is fixed on the first brake lever. 4. The linked braking system of claim 1, wherein when the first brake lever is applied with force, the gap will become smaller as the force is increased, and the second positioning portion will be moved through the elastic force. The piece indirectly exerts force on the lever. 5. The linked braking system of claim 1, wherein the independent braking unit includes a second brake master cylinder, a second brake caliper and a second brake oil pipe, and the second brake master cylinder includes a second brake master cylinder. A second brake lever, a rocker arm, a drag plate, a second cylinder, a second plunger, a second spring and a second oil chamber. The accommodation space of the second cylinder accommodates the second brake lever. Two plungers, the second spring and the second oil chamber. The second spring connects the second cylinder and the second plunger and exerts a spring force on the second plunger for a long time. The rocker arm is pivoted In the second cylinder, the carriage is pivotally connected to the rocker arm, and the second brake lever is pivotally connected to the second cylinder. When the second brake lever rotates, the rocker arm can rotate. The carriage is supported by the When the brake wire is pulled, the rocker arm can rotate, and when the rocker arm rotates, it can directly or indirectly push the second plunger, wherein the second brake oil pipe can transport the hydraulic oil of the second brake master cylinder to the second Brake calipers produce braking effect.