CN1177725C - Braking device for two-wheeled vehicles - Google Patents

Abstract

The present invention provides a braking device for a two-wheeled vehicle. When a left handle is operated, braking forces are respectively applied to a front brake and a rear brake, thereby improving operability and braking ability. The brake device of the present invention is constituted in such a way that the left handle (1) is connected with the rotary rod (23) through the balance part (31), and the rotary rod (23) is connected with the rear brake (6) and the front brake (5); Connect the right handle (3) with the front brake (5) through the swivel lever (23). Like this, by operating the right handle (3), braking force can be given to the front brake, and by operating the left handle (1), braking force can be given to the rear brake (6) and the front brake (5) simultaneously.

Description

Braking device for two-wheeled vehicles

technical field

The present invention relates to a suitable two-wheeled vehicle braking device for a small motorcycle or the like, the left and right handles of which are respectively provided with brake handles.

Background technique

Two-wheeled vehicles such as most small motorcycles adopt continuously variable transmission, so there is generally no clutch lever, but a handle for braking is respectively provided with on its left and right handles.

As everyone knows, this prior art brake device for a two-wheeled vehicle is made of, for example, the following parts: a left handle arranged on the left handle; a right handle arranged on the right handle; The rotation brakes the front wheels; the rear brake brakes the rear wheels through the rotation of the left handle.

In addition, in this conventional braking device for a two-wheeled vehicle, the front brake is activated by holding and rotating the right handle to brake the front wheels. By holding the left handle and turning it, the rear brake is activated to brake the rear wheel. Therefore, by appropriately turning and operating the left and right handles, the front and rear wheels can be braked to slow down or stop the vehicle.

However, the brake device for a two-wheeled vehicle in the prior art has such a structure that a braking force is applied to the front brake by operating the right handle, and a braking force is applied to the rear brake by operating the left handle. Therefore, there is a problem that in order to shorten the braking distance, it is necessary to adjust the braking force of the front brake and the braking force of the rear brake to make it properly balanced, so it is difficult to operate the handle.

Contents of the invention

The present invention has been developed in view of the above-mentioned problems in the prior art, and an object of the present invention is to provide a braking device for a two-wheeled vehicle that applies braking forces to the front brake and the rear brake respectively when the left handle is operated, such that , can improve the handling performance and braking ability.

In order to solve the above problems, a braking device for a two-wheeled vehicle of the present invention is composed of the following components: a cover, which is installed on the vehicle body; One side of the pivot is used as a fulcrum, and it is pivotally supported on the cover; the first connecting rod is arranged on the cover in a state perpendicular to the rotary rod, and its long hole pierced along the length direction is combined with At the middle position in the length direction of the swivel rod, it is connected with the right handle provided on the right handle for pulling operation at the same time; the balance part is arranged on the cover in a state parallel to the swivel rod, It is connected to the left handle on the left handle at the middle position in the length direction for pulling operation; the second connecting rod is arranged in a state perpendicular to the balance part and the rotary rod, and is supported in a pivotal manner On either one side or the other side of the length direction of the balance part, the long hole pierced along the length direction is combined on the other side of the length direction of the swing rod; the front brake, which is used for the front wheel Give braking force; rear brake, which is used to give braking force to the rear wheel; the first connecting member, it connects the middle position in the length direction of the slewing rod and the front brake; the second connecting member, it connects the balance Either one or the other side of the length of the component is connected to the rear brake.

According to such a structure, when holding the right handle and turning it, the first connecting rod is pulled and the rotating rod is turned, and the first connecting member connected to the rotating rod is moved, so that the first connecting member connected to the first connecting member is moved. Attached front brakes give stopping power. At this time, since the first connecting rod and the first connecting member are respectively connected at the middle position in the length direction of the revolving rod, the pulling force generated by the rotation of the right handle is almost directly transmitted from the first connecting rod to the first connecting member, so the right The operation amount of the handle can be fully used to apply the braking force to the front brake.

In addition, when holding the left handle and turning it, the balance part is pulled and operated, and the rear brake is restrained by the second connecting member connected to one side of the length direction of the balance part or any other side in another example. power. Simultaneously, through the second connecting rod connected to the other side in the longitudinal direction of the balance member, the rotary rod is rotated, and then the first connecting member is operated according to the rotation of the rotary rod, and a braking force is applied to the front brake.

Another braking device for a two-wheeled vehicle of the present invention is composed of the following components: a main oil cylinder cover, which is provided with a piston movable in the axial direction for pushing the brake fluid, and is used to brake the front brake. Power; a swivel rod, which is arranged on both sides of the main cylinder cover with its axis sandwiched, and one side in the length direction of the rotary rod is used as a fulcrum, and is pivotally supported on the main cylinder cover; the first The connecting rod is arranged on the main oil cylinder cover in a state perpendicular to the rotating rod, and the long hole pierced in the axial direction of the first connecting rod is combined with the middle position of the rotating rod, and at the same time, it is connected with the The right handle on the right handle is connected to carry out the pulling operation; the balance part is arranged on the main oil cylinder cover in a state parallel to the rotary rod, and it is arranged on the left handle at the middle position in the length direction. The left handle is connected to perform pulling operation; the second connecting rod is configured in a state perpendicular to the balancing part and the turning rod, and is pivotally supported on the other side in the length direction of the balancing part, and at the same time Its long hole pierced axially is combined on the other side of the length direction of the rotary rod; the push member is arranged between the middle position of the rotary rod and the piston in the main cylinder cover, and is used for for promoting the piston; connecting body, which connects one side of the balance part in the length direction and the rear brake.

According to such a configuration, in order to apply braking force to the front brakes by the cover mounted on the vehicle body, the master cylinder cover provided with a piston movable in the axial direction for pushing the brake fluid can also be used as the cover. When the right handle is held and rotated, the first connecting rod is pulled to rotate the rotating rod, and the piston in the master cylinder cover is pushed by the pushing member connected to the rotating rod, so that the piston pushes the brake fluid, and the This brake fluid pressure applies braking force to the front brakes. At this time, the first connecting rod and the pushing member are respectively connected at the middle position in the length direction of the rotary rod, and the pulling force generated by the rotation of the right handle is almost directly transmitted from the first connecting rod to the pushing member, so the operation amount of the right handle can be adjusted. Exclusively for applying braking force directly to the front brakes.

In addition, when the left handle is held and rotated, the balance member is pulled and operated, and a braking force is applied to the rear brake through the connecting body connected to one side of the balance member in the longitudinal direction. At the same time, the rotary rod is rotated by the second connecting rod connected to the other side in the length direction of the equalizing part, so the piston in the master cylinder cover can be pushed by the pushing member according to the rotation of the rotary rod to give braking force to the front brake .

On the other hand, since the cover of the master cylinder that supplies the brake hydraulic pressure to the front brake is used as the master cylinder cover for installing the swing rod, the connecting body, etc., an additional cover that is required can be omitted.

Also, since the pivot rod is sandwiched between the axis of the master cylinder cover and arranged on both sides, and the pivot rod and the equalizer are arranged in parallel, the other side in the longitudinal direction of the pivot rod and the longitudinal direction of the equalizer part are connected by the second connecting rod. Since the other side is connected, the width of the master cylinder cover can be effectively utilized, and the pivoting rod and equalizing member can be overlapped in the axial direction, thereby reducing the space required for installing the pivoting rod and equalizing member.

In addition, the braking device for a two-wheeled vehicle of the present invention is structured in such a way that the swing lever is formed into a fork shape by the mounting part, the first rod part and the second rod part, wherein: the mounting part is located on one side in the longitudinal direction, and it is installed on On the main cylinder cover, it can be rotated; the first rod part extends from the mounting part and the outer peripheral side of the master cylinder cover to the other side in the length direction; the second rod part is on the first rod through the master cylinder cover The opposite side of the part is extended to the other side in the length direction, the first connecting rod is connected to the first rod part, and the second connecting rod is connected to the second rod part.

According to such a structure, when the first connecting rod is pulled, the first rod part and the second rod part of the rotary rod rotate using the mounting part as a fulcrum, and when the second connecting rod is pulled, the first rod part of the rotary rod The rod part and the second rod part also rotate around the attachment part as a fulcrum of rotation.

In addition, the first connecting rod and the brake wire connecting the first connecting rod to the right handle can be independently arranged on the first rod side, and the balance member, the second connecting rod, and the second connecting rod can be arranged independently. A wire connected to the left handle and the like are independently arranged on the second lever side.

In addition, by making the pushing member a pushing pin arranged in a direction perpendicular to the axis of the piston, the assembly size of the pushing pin in the axial direction of the master cylinder cover can be reduced.

In addition, through the structure in which both ends of the push pin are supported on the first and second rods of the rotary rod, the first and second rods are connected by the push pin, and the first and second rods can be improved. 2 Strength between rods.

Also, the balance part stop surface is set on the main oil cylinder cover in this way, that is, when the balance part is pulled with a large force with the left handle, the balance part stop surface just touches the other side of the balance part in the length direction to limit its moving.

According to such a configuration, for example, in a state where the front brake cannot be used due to leakage of brake fluid, etc., when the balance member is pulled with the left handle, the balance member stops due to the other side in the longitudinal direction of the balance member. Therefore, the contact point can be used as a fulcrum to rotate one side of the balance part in the length direction, so that the left handle can be used to pull and operate the connecting body connected to the side of the balance part in the length direction to give braking force to the rear brake.

In addition, the rear brake is composed of a cylindrical brake, and the stop member is arranged on the master cylinder cover in such a way that the stop member contacts one side of the balance part in the longitudinal direction by the spring force in the cylindrical brake to limit The rotation of the equalizer component. In this way, the equalizing part can be positioned in a state where the equalizing part is in contact with the stop member by the spring force in the cylinder brake.

Again, the ratio of the length between the fulcrum of rotation on one side of the rotary rod and the connection position of the push member, and the length between the fulcrum of rotation on one side of the rotary rod and the connection position of the second connecting rod is set to about 1: 1.3～1:2.5.

According to such a structure, when the balance member is pulled and operated by the left handle, and the rotary rod is rotated through the second connecting rod, in order to rotate the rotary rod, although a stroke 1.3-2.5 times larger than that of the first connecting rod is required, the corresponding Therefore, the pushing member provided near the first connecting rod can be moved with a large force, and a desired braking force can be given to the front brake.

In addition, the ratio of the length dimension between the connection position of the balance part and the left handle and the connection position of the connecting body to the length dimension between the connection position of the balance part and the left handle and the connection position of the second connecting rod is set It is about 1:2-1:3.

According to such a configuration, when the balance member is pulled and operated by the left handle, the connecting body connected near the connection position of the left handle generates a large movement, and a large braking force is applied to the rear brake. At this time, on the other side in the length direction of the equalizing component, the first connecting rod connected at a position 2-3 times farther than the connecting position of the connecting body is also subjected to a small pulling force, and the first connecting rod The lever rotates the rotary lever and actuates the pushing member, thereby applying braking force to the front brakes as well.

Another braking device for a two-wheeled vehicle of the present invention is composed of the following components: a cover, which is installed on the vehicle body; a master oil cylinder, which is provided with a piston for pushing brake fluid inside, and is used to apply a braking force to the front brake a pivoting lever, which is arranged on both sides of the cover with its axis sandwiched therebetween, and is pivotally supported on the cover with one side in the longitudinal direction as a pivot point; The vertical state is arranged on the cover, and the long hole pierced along the length direction is combined with the middle position of the rotary rod, and at the same time it is connected with the right handle on the right handle for pulling operation; The rotating rod is arranged on the cover in a parallel state, and is connected to the left handle provided on the left handle at the middle position in the length direction for pulling operation; the second connecting rod is connected with the balance part and the rotating rod The rods are arranged in a vertical state, pivotally supported on the other side of the length direction of the balance part, and at the same time, the long holes pierced along the length direction are combined on the other side of the length direction of the rotary rod; the push member is set Between the middle position of the rotary rod and the piston in the main oil cylinder, it is used to push the piston; and the connecting body, it connects one side of the equalizing part in the length direction and the rear brake. This braking device for a two-wheeled vehicle is constructed in such a way that the pushing member is provided at a position with a predetermined dimension in the longitudinal direction from the fulcrum of the slewing rod, so that the piston installed in the master cylinder The axis of is located on the tangent when the pushing member is turned by the turning rod.

According to such a configuration, when the right handle is held and rotated, the first connecting rod is pulled to rotate the rotating rod, and the piston in the master cylinder is pushed by the pushing member connected to the rotating rod, so the piston pushes the Press the brake fluid, and use the brake hydraulic pressure to apply braking force to the front brake. At this time, the first connecting rod and the pushing member are respectively connected to the middle position in the length direction of the rotary rod, and the pulling force generated by the rotation of the right handle is almost directly transmitted from the first connecting rod to the pushing member, so the operation amount of the right handle The braking force can be applied to the front brakes as it is.

In addition, when the left handle is held and rotated, the equalizing part is pulled and operated, and a braking force is applied to the rear brake through the connecting body connected to one side of the equalizing part in the length direction. Simultaneously, the rotary rod is rotated by the second connecting rod connected to the other side of the balance member in the longitudinal direction, so according to the rotation of the rotary rod, the piston in the master oil cylinder is pushed by the pushing member to give braking force to the front brake.

Also, the axis of the piston installed in the master cylinder is located on the tangent line when the push member is rotated by the rotary rod. Therefore, when the rotary rod is pulled in the axial direction and rotated, the force at this time can be effectively Acts on the piston in the master cylinder.

Description of drawings

Fig. 1 is the overall structure diagram that shows the two-wheeled vehicle braking device of embodiment 1 of the present invention;

Fig. 2 is a longitudinal sectional view showing a specific structure inside the master cylinder cover in Fig. 1;

Fig. 3 is a front view showing its specific structure from the front side when the braking device for a two-wheeled vehicle in Fig. 1 is installed on the vehicle body;

Fig. 4 is a left side view of the braking device for a two-wheeled vehicle shown in Fig. 3;

Fig. 5 is a rear view of the brake device for a two-wheeled vehicle shown in Fig. 3;

Fig. 6 is a bottom view of the braking device for a two-wheeled vehicle shown in Fig. 3;

Fig. 7 is a front view of the braking device for a two-wheeled vehicle seen from the same position as Fig. 3 showing the operation of the left handle in the state where the brake fluid leaks from the cylinder hole;

Fig. 8 is an overall structural diagram showing a brake device for a two-wheeled vehicle according to Embodiment 2 of the present invention;

Fig. 9 is a front view showing the specific structure of the brake device for a two-wheeled vehicle shown in Fig. 8;

Fig. 10 is a cross-sectional view seen from the arrow III-III direction of Fig. 9 representing the connection state of the swivel lever, the 1st connecting rod, the 1st brake driving steel wire, and the right brake steel wire;

Fig. 11 is a cross-sectional view seen from the direction of arrow IV-IV in Fig. 9 representing the installed state of the swivel lever on the cover;

Fig. 12 is a side view seen from the direction of arrow V-V in Fig. 9 representing the balance member, the second brake driving steel wire, and the left brake steel wire;

Fig. 13 is a front view of the brake device for a two-wheeled vehicle seen from the same position as Fig. 9 showing the state of operating the left handle when the first brake driving wire is broken;

Fig. 14 is a diagram showing the overall structure of a brake device for a two-wheeled vehicle according to Embodiment 3 of the present invention.

Detailed ways

Next, the brake device for a two-wheeled vehicle according to Embodiment 1 of the present invention will be described in detail with reference to FIGS. 1 to 7 . In the brake device for a two-wheeled vehicle according to the first embodiment, disc brakes are provided on the front wheels and cylinder brakes are provided on the rear wheels.

1 is a left handle, which is arranged on the left handle 2 on the left hand side of the driver, and 3 is a right handle, which is arranged on the right handle 4 on the right hand side of the driver, by holding the left and right handles 1, 3 and using Its rotation can make the front disc brake 5 and the rear cylindrical brake 6 act.

5 is a front disc brake provided on a front wheel (not shown in the figure), and the front disc brake 5 is connected to the hose connection port 22 of the master cylinder cover 11 through a brake hose 5A. In addition, the front disc brake 5 is operated by the hydraulic pressure supplied from the brake hose 5A by the piston 20 pressing the brake fluid in the master cylinder cover 11 to brake the front wheels.

6 is the rear cylindrical brake that is located on the rear wheel (not shown in the figure), and the rear cylindrical brake 6 is activated by pulling the brake driving wire 37 to brake the rear wheel.

11 is the main oil cylinder cover that is installed on the vehicle body (not shown in the figure) of two-wheeled vehicle, and this main oil cylinder cover 11 adopts aluminum material etc. The cylinder hole 12 extending in the vertical direction around the axis line O-O of the cover 11 is formed to open downward. And the axis O-O is located on the tangent when said push pin 83 is rotated by the rotary rod 23 .

Here, when describing the outer peripheral shape of the master cylinder cover 11, the front side when the master cylinder cover 11 is mounted on the vehicle body, that is, the surface shown in FIG. The upper side, the lower side, the left side, and the right side of 3 are used as the upper side, the lower side, the left side, and the right side of the master cylinder cover 11, and the same is true when other figures are described.

First, on the front side of the master cylinder cover 11, as shown in FIGS. The hole 13A is used to insert the bushing 34B of the left brake wire 34 through the insertion hole 13A. In addition, the left side of the front side bracket 13 is bent downward, and the lower end surface thereof serves as a balance member stopper surface 13B that contacts the arc-shaped protrusion 31D of the balance member 31 .

In addition, an intermediate bracket 14 for supporting the bushing 37B of the brake driving wire 37 is protrudingly provided at the middle portion in the vertical direction of the master cylinder cover 11 . Here, the upper end surface of the intermediate bracket 14 becomes a stopper surface 14A, and this stopper surface 14A constitutes a stopper member, and the stopper member hits against the brake driving wire 37 by the spring force in the rear cylinder brake 6 . One side of the balancing component 31 is pulled to position the balancing component 31 .

In addition, on the rear side of the master cylinder cover 11 sandwiching the axis O-O with the front bracket 13, as shown in FIG. 36 is attached to the rear side bracket 15 in a state of being inserted through the insertion hole 15A.

On the lower side of the master cylinder cover 11, the right side is provided with a rod mounting portion 16 for rotatably installing the rotary rod 23, and the left side is provided with two fixing protrusions 17, 17 for fixing a tension spring 38 described later. . Also, on the lower side of the master cylinder cover 11 , there is provided a square pin insertion groove 18 penetrating the cylinder hole 12 in the front-rear direction, and the pin insertion groove 18 allows the piston 20 to be pushed inside by the push pin 33 .

In addition, on the master cylinder cover 11, a tubular hose mounting portion 19 is provided at the middle portion in the vertical direction, and the hose mounting portion 19 is connected to a relay hose 40 described later. As shown in FIG. The inside of the hose mounting portion 19 communicates with the cylinder hole 12 .

20 is a piston movably inserted in the cylinder hole 12 of the main cylinder cover 11 in the axial direction centered on the axis O-O. live. In addition, the piston 20 is pushed by the push pin 33 to push the brake fluid in the cylinder bore 12 , and then sends hydraulic pressure to the front disc brake 5 through the brake hose 5A connected to the hose connection port 22 .

23 is a rotary rod, which is located at the lower side of the master cylinder cover 11, and the two sides sandwich the axis O-O and extend along the left and right directions. As shown in FIG. 6 , this pivot lever 23 is formed into a fork shape by a mounting portion 24 , a first rod portion 25 , and a second rod portion 26 . Wherein: the installation part 24 is located on one side of the longitudinal direction, and is curved in a U shape; the first rod part 25 is extended from the rear side of the master cylinder cover 11 to the other side of the longitudinal direction from the installation part 24; the second rod part 26 extends to the other side in the longitudinal direction on the opposite side of the first rod portion 25 , that is, on the front side across the master cylinder cover 11 . In addition, the mounting portion 24 is provided with a bolt insertion hole 24A, and the mounting portion 24 is rotatably pivotally supported by the rod mounting portion 16 via a bolt 27 and a nut 28 inserted in the bolt insertion hole 24A. Also, the mounting portion 24 is integrally provided with a stop protrusion 24B, which is used to contact the rod mounting portion 16, and the stop protrusion 24B is to limit the most protruding position of the piston 20, and it relieves the action caused by The load on the cylinder body 21 made of the resin material prevents the cylinder body 21 from being damaged. In addition, the size of the second rod portion 26 is longer than that of the first rod portion 25 .

In addition, a first rod connecting hole 25A is provided on the front end side of the first rod part 25 for connecting a first connecting rod 29 described later, and a front end side of the second rod part 26 is provided with There is 26 A of 2nd rod connection holes for connecting the 2nd connection rod 32 mentioned later. Also, pin insertion holes 25B, 26B for inserting the push pin 33 are provided at intermediate positions in the longitudinal direction of the first rod portion 25 and the second rod portion 26 . Although the first rod connection hole 25A is provided on the front end side of the first rod part 25, since the second rod part 26 is longer than the first rod part 25, the first rod part 23 has a length of 1st rod relative to the entire length of the rotary rod 23. The rod connection hole 25A is located in the middle of the swivel rod.

Here, the first rod connecting hole 25A is provided at a position whose distance (length dimension) is L1 from the center of the bolt insertion hole 24A, which is the fulcrum of rotation of the revolving rod 23, and the pin insertion holes 25B, 26B are provided at the positions corresponding to the bolt insertion holes. The distance from the center of the through hole 24A is L2, and the second rod connection hole 26A is provided at a distance L3 from the center of the bolt insertion hole 24A. And the distance L1 between the bolt insertion hole 24A and the first rod connection hole 25A, the distance L2 between the bolt insertion hole 24A and the pin insertion holes 25B, 26B are similar dimensions, and the distance dimensions L1, L2 are similar to the bolt insertion holes. The ratio of the distance L3 between the hole 24A and the second rod connection hole 26A is set, for example, in the range of about 1:1.3-1:2.5, preferably about 1:1.8.

29 is the first connecting rod positioned at the rear side of the main oil cylinder cover 11, which is perpendicular to the rotary rod 23 and arranged along the up and down direction. The long hole 29A extending in the axial direction of the cylinder cover 11 . In addition, a wire connection hole 29B for connecting the wire main body 36A of the right brake wire 36 is provided at the upper end portion of the first connecting rod 19 . Further, the long hole 29A of the first connecting rod 29 is connected to the first rod connecting hole 25A formed in the first rod portion 25 of the pivoting rod 23 via the pin 30 .

31 is a balance member, which is located in the middle of the master cylinder cover 11 in the up and down direction, and is set in a free state. In addition, a steel wire connection hole 31A, a steel wire connection hole 31B, and a rod connection hole 31C are provided on the balance part 31, wherein: the steel wire connection hole 31A is located in the middle of the length direction, and it is connected with the steel wire main body 34A of the left brake wire 34; The connecting hole 31B is located on one side in the longitudinal direction and is connected to the wire main body 37A of the brake driving wire 37 ; the rod connecting hole 31C is located on the other side in the longitudinal direction and is connected to the second connecting rod 32 . Also, an arc-shaped protrusion 31D is provided on the other side of the balance member 31. When the front disc brake 5 side fails, the arc-shaped protrusion 31D contacts the balance member stop surface 13B of the front bracket 13. catch.

Here, the wire connection hole 31B connected to the rear cylindrical brake 6 is arranged at a distance (length dimension) of L4 from the wire connection hole 31A, and the wire connection hole 31A is connected to the left brake wire 34. The rod connection hole 31C connected to the pivot rod 23 side is arranged at a position having a distance L5 from the wire connection hole 31A. And, the ratio of the distance dimension L4 between the steel wire connection hole 31A and the steel wire connection hole 31B to the distance L5 between the steel wire connection hole 31A and the rod connection hole 31C is set to a range of about 1:2-1:3, for example, The best setting is about 1:2.7.

32 is the second connecting rod, which is perpendicular to the rotary rod 23 and the stable beam 31, and arranged in parallel with the first connecting rod 29. A long hole 32A is perforated at the lower side of the second connecting rod 32. The long hole 32A extends in the axial direction of the master cylinder cover 11 . And, the upper end side of the second connecting rod 32 is connected with the rod connecting hole 31C provided on the other side in the longitudinal direction of the equalizer member 31 through the pin 30, and the long hole 32A is connected with the other side in the longitudinal direction of the second rod part 26 through the pin 30. The second rod connection hole 26A on the side is connected.

33 is a push pin, which constitutes a push member provided between the first rod portion 25 and the second rod portion 26 of the rotary rod 23 . The push pin 33 is a cylindrical pin elongated in the front-rear direction perpendicular to the axis O-O, and its both sides are supported by the pin insertion hole 25B of the first rod portion 25 and the pin insertion hole of the second rod portion 26. Within 26B. In addition, the central part in the longitudinal direction of the push pin 33 is an arc surface 33A bulging in an arc shape. This arc surface 33A is a part for pushing the piston 20. Even if the push pin 33 is tilted, it can be straight along the axial direction Push piston 20.

Here, the piston 20, the rotary rod 23, the first connecting rod 29, the equalizer member 31, the second connecting rod 32, the push pin 33, etc. are integrally assembled on the master cylinder cover 11 to constitute one of the braking devices for a two-wheeled vehicle. component unit.

34 is a left brake wire. The left brake wire 34 is composed of a steel wire main body 34A and a sleeve 34B, wherein: one end of the steel wire main body 34A is connected to the left handle 1, and the other end is connected to the steel wire connection hole 31A of the balancing component 31. The sleeve 34B is provided on the outer peripheral side of the wire main body 34A, and the other end of the sleeve 34B is formed on the outer peripheral side with a threaded portion 34B1. In addition, the other end of the sleeve 34B is inserted into the insertion hole 13A of the front bracket 13, and is attached to the front bracket 13 with two nuts 35, 35 so that its position can be adjusted.

36 is the right brake steel wire, and this right brake steel wire 36 is made of steel wire main body 36A and sleeve pipe 36B as shown in Figure 5, wherein: one end of steel wire main body 36A is connected with right handle 3, and the other end is connected with the first connecting rod 29 The steel wire connecting holes 29B are connected; the sleeve 36B is provided on the outer peripheral side of the steel wire main body 36A, and a threaded portion 36B1 is formed on the outer peripheral side of the other end of the sleeve 36B. In addition, the other end of the sleeve 36B is inserted into the insertion hole 15A of the rear bracket 15, and is attached to the rear bracket 15 with two nuts 35, 35 so that its position can be adjusted.

37 is a brake driving steel wire that becomes a connecting body, and the brake driving steel wire 37 is composed of a steel wire main body 37A and a sleeve 37B arranged on the outer peripheral side of the steel wire main body 37A, wherein: one end of the steel wire main body 37A is connected to the steel wire connecting hole 31B of the balance member 31 The other end is connected to the rear cylinder brake 6; one end of the bushing 37B is fitted in the middle bracket 14 in a positioned state.

38, 38 are the extension springs located between the stop protrusions 17, 17, the balance part 31, and the first connecting rod 29, and each extension spring 38 is used to prevent the left handle 1 and the right handle 3 from shaking.

In addition, 39 is a liquid storage tank, which is connected to the hose installation part 19 of the master cylinder cover 11 through a relay hose, and a predetermined amount of brake fluid is filled in the liquid storage tank 39, and the liquid storage tank 39 is installed on the The position where the amount of brake fluid can be checked from the outside with the naked eye.

The braking device for a two-wheeled vehicle according to this embodiment has the structure as described above. Next, the installation sequence of the wires 34, 36, 37 and the adjustment method of each part will be described.

Firstly, the wire main body 37A of the brake driving wire 37 is connected to the wire connection hole 31B of the balance member 31 , and the bushing 37B is installed on the intermediate bracket 14 . Then, the wire main body 34A of the left brake wire 34 is connected to the wire connection hole 31A of the equalizer member 31 , and the sleeve 34B is mounted on the front bracket 13 with a nut 35 . Also, the wire main body 36A of the right brake wire 36 is connected to the wire connection hole 29B of the first connecting rod 29 , and the sleeve 36B is attached to the rear bracket 15 with a nut 35 .

If each steel wire 34, 36, 37 is installed in this way, there is no gap between the elongated hole 29A of the first connecting rod 29 and the pin 30, and between the elongated hole 32A of the second connecting rod 32 and the pin 30. The nut 35 on the 34B adjusts the protruding amount of the steel wire main body 34A of the left brake steel wire 34 until it reaches such a position, that is, through the effect of the spring force in the rear cylinder brake 6, the equalizing part 31 hits the middle bracket 14. on the stop surface 14A. In this way, the rattling phenomenon does not occur in each part, and the response performance at the time of brake operation can be improved.

Next, the operation of the braking device to which the respective wires 34, 36, 37 are attached in the order described above will be described.

First, when the right handle 3 is held and rotated, the first connecting rod 29 is pulled in the direction A indicated by the arrow through the right brake wire 36 . In this way, the rotary rod 23 rotates in the direction of arrow B, and the piston 20 is pushed in the direction of arrow A through the push pin 33 installed on the rotary rod 23, so that the piston 20 pushes the brake in the cylinder hole 12. The hydraulic pressure activates the front disc brake 5 to brake the front wheels.

At this time, since the first connecting rod 29 and the push pin 33 are connected to the first connecting rod connecting hole 25A, the pin insertion hole 25B, 26B which is only a short distance from the bolt insertion hole 24A as the fulcrum of rotation, L1 and L2 Therefore, the amount of operation when turning the right handle 3 can be used to operate the front disc brake 5 as it is, and the braking force given to the front wheels can be accurately adjusted.

On the other hand, when the left handle 1 is held and rotated, the balance member 31 is pulled in the direction of arrow A by the left brake wire 34 . In this way, the balance member 31 pulls the brake driving wire 37 to actuate the rear cylinder brake 6 to brake the rear wheel.

Again, when pulling the balancing member 31 along the direction of arrow A, the pivot lever 23 is rotated along the direction of arrow B by the second connecting rod 32, and the piston 20 is promoted by the push pin 33, so that the front disc brake 5 is actuated, and the front wheel is also operated. brake.

At this time, since the ratio of the distance L4 between the steel wire connection hole 31A and the steel wire connection hole 31B to the distance L5 between the steel wire connection hole 31A and the rod connection hole 31C is set to about 1:2.7, it is possible to use a larger The force pulls the brake driving steel wire 37 that is connected on the steel wire connecting hole 31B, and gives the rear wheel a large braking force by the rear cylindrical brake 6. In addition, the second connecting rod 32 is pulled with a small force according to the above-mentioned ratio, and the turning lever 23 is turned in the arrow B direction.

Next, since the ratio of the distance L2 between the bolt insertion hole 24A and the pin insertion holes 25B, 26B to the distance L3 between the bolt insertion hole 24A and the second rod connection hole 26A is set to about 1:1.8, Therefore, when the rotary lever 28 is rotated by the second connecting rod 32, the push pin 33 is pushed with a stroke of 1/1.8 of the rotary amount at this time.

Therefore, when turning and operating the left handle 1, due to the effect of the balance part 31, its operating force can be reduced to about 1/2.7, but the power to push the push pin 33 on the turning rod 23 is due to the pin insertion holes 25B, 26B and The distance relationship between the second lever connection hole 26A and the bolt insertion hole 24A is increased to 1.8 times that when the right handle 3 is turned and operated, so that the front disc brake 5 can be auxiliary operated to brake the front wheels.

Next, a case where the front disc brake 5 cannot be used due to brake fluid leakage in the cylinder hole 12 during operation of the two-wheeled vehicle will be described.

First, when the left handle 1 is held and turned while the brake fluid in the cylinder hole 12 is leaking, the balance member 31 is pulled in the direction of arrow A by the left brake wire 34 . At this time, as shown in FIG. 7 , since the rotary lever 23 is in a free state, the rotary lever 23 largely rotates in the direction of the arrow C, and the arc-shaped protrusion 31D of the balancing member 31 touches the bottom of the front bracket 18. On the stop surface 13B of the balancing part.

However, from the state where the arc-shaped protrusion 31D of the balancing member 31 is in contact with the stopping surface 13B of the balancing member, and the left handle 1 is further rotated, one side of the balancing member 31 can be rotated in the direction of the arrow D, and pull The brake steel wire 37 makes the rear cylindrical brake 6 act, and can apply braking force to the rear wheel.

Therefore, according to the braking device for a two-wheeled vehicle of this embodiment, when the left handle 1 is rotated and operated, the rear wheel can be braked by the rear cylindrical brake 6, and at the same time, the front disc brake 5 can be used to brake the rear wheel. The auxiliary brake is applied to the front wheels, so even if only the left handle 1 is operated during deceleration, the front and rear wheels can be properly braked, and the lever operation is easy and stable braking force can be obtained.

In addition, when the front disc brake 5 is operated by the right handle 3, the operation amount of the right handle 3 can operate the front disc brake 5 as it is, so that the front wheel under load can be accurately braked during braking. to improve stability when braking.

Again, when the left handle 1 is operated, the rear cylindrical brake 6 is given priority to act, and a large braking force is given to the rear wheel, and the front disc brake 5 is used to perform auxiliary braking on the front wheel, so the rear cylinder brake 6 can be used first during braking. The wheel brake can stabilize the vehicle body when braking.

In addition, the master cylinder cover 11 itself is used as a cover, and the piston 20, the rotary rod 23, the first connecting rod 29, the balance member 31, the second connecting rod 32, the push pin 33, etc. are integrally installed, so it is not necessary to use another The cover is used to form the brake device, which can reduce the cost and miniaturize the brake device.

Moreover, the master cylinder cover 11 is formed by castings such as aluminum materials, so the rigidity of the cover can be increased, and even when a large load is applied during braking operation, deformation caused by the load can be suppressed, and accurate manufacturing can be performed. Manual operation improves operability and durability.

In addition, when the swivel rod 23 is installed on the master cylinder cover 11, one side of the swivel rod 23 is pivotally mounted on the rod mounting portion 16 of the master cylinder cover 11, and the first connecting rod 29, the second 2. The connecting rod 32 and the push pin 33 are collectively connected to the other side of the swivel rod 23, so the installation space around the swivel rod 23 can be reduced.

In addition, the axis line O-O is sandwiched by the rotary rod 23, and one example in the longitudinal direction is pivotally supported on the master cylinder cover 11. At the same time, the balance member 31 is stacked on the top of the rotary rod 23, so the balance member 31 can be accommodated. Within the length range of the swivel lever 23, the installation size in the left and right directions can be reduced, so that the overall size of the brake device can be reduced.

In addition, the swing rod 23 is formed into a fork shape by the mounting part 24, the first rod part 25 and the second rod part 26 extending from the mounting part 24 to the front side and the rear side of the master cylinder cover 11, and the left brake wire 34 is used to form a fork. The operating system for operation is independently arranged on the front side, and the operating system operated by the right brake wire is independently arranged on the rear side. Therefore, the front and rear of the master cylinder cover 11 can be effectively used, not only can the device be miniaturized, but also There is also a spare place to install various components, thereby improving the assembly and maintenance performance of the device.

Also, because the push pin 33 of the push piston 20 is vertically arranged with the axis O-O, so when the push pin 33 is installed on one side of the master cylinder cover 11, the axial (up and down) dimension can be reduced.

And because both sides of push pin 33 are supported on the first rod portion 25 and the second rod portion 26 of rotary rod 23, so the rigidity against torsion of rotary rod 23 during operation can be improved, and its life and operability can be improved.

In addition, since the center portion of the push pin 33 in the longitudinal direction is provided with a circular-arc surface 33A, even if the push pin 33 is tilted, the push pin 33 can be used to push the piston 20 straight in the axial direction, which can prevent the piston 20 from being pushed straightly. Damage or malfunction due to jamming, etc.

Again, even when the front disc brake 5 fails due to brake fluid leakage, etc., the equalizer 31 is pulled with the left handle 1, so that the arc-shaped protrusion 31D of the equalizer 31 collides with the stop surface 13B of the equalizer, and The equalizing part 31 can be rotated with the contact point as a fulcrum, and the rear cylinder brake 6 can be braked by driving the steel wire 37 through the brake. In this way, the vehicle can be reliably decelerated from the driving state and safety can be ensured.

Moreover, the braking force produced by the front disc brake 5 when the left handle 1 is operated can be mechanically set according to the ratio of the positions where each member is installed on the swivel lever 23 and the balance member 31, so it can be adjusted by adjusting the ratio appropriately. It can be easily applied to various two-wheeled vehicles, and the application range of the brake device can be expanded.

Also, the axis O-O of the piston 20 is located on the tangent when the push pin 33 is rotated by the rotary rod 23, so when the rotary rod 23 is pulled axially and rotated, the pulling force at this time can be effectively acted on by the push pin 33. On the piston 20, the braking force of the front disc brake 5 can be increased.

The embodiment is based on the following setting as an example, that is, the distance L1 between the bolt insertion hole 24A and the first rod connection hole 25A, the distance L2 between the bolt insertion hole 24A and the pin insertion holes 25B, 26B, and the distance L2 between the bolt insertion hole 24A and the bolt insertion hole. The ratio of the distance L3 between the through hole 24A and the second rod connecting hole 26A is set to about 1:1.8; The ratio of the distance L5 between them is set to be about 1:2.7. But, the present invention is not limited thereto, also can be set as the value in the following range according to factors such as the performance of vehicle, weight distribution: the ratio of distance L1, L2 and distance L3 can be at 1: 1.3～1: 2.5 Within the range; the ratio of the distance L4 to the distance L5 may be in the range of 1:2˜1:3.

Again, in the embodiment, the aluminum casting is taken as an example with the main oil cylinder cover 11, but the main oil cylinder cover 11 can also be made of other materials such as cast iron, and other processing methods such as cutting can also be used to make the main oil cylinder cover 11.

In addition, the embodiment is described by using the following example, that is, the main cylinder cover 11 is constituted by a single member with the cylinder hole 13 inside and the brackets 13, 14, 15 on the outer periphery, etc., but the present invention is not limited to Here, the main oil cylinder cover also can be constituted like this, for example, the outer cover that each bracket 13, 14, 15 etc. forms is separately provided with the main oil cylinder, and the said main oil cylinder is designed to be built-in shape (shell type) and be located in the outer cover.

8 to 13 show a brake device for a two-wheeled vehicle according to Embodiment 2 of the present invention. In Embodiment 2, a case where cylinder brakes are respectively provided on the front wheel side and the rear wheel side will be described.

101 is the left handle that is located on the left handle 102 on the driver's left hand side, and 103 is the right handle that is located on the right handle 104 on the driver's right hand side, and their effects are: by holding and turning the left and right handles 101,103, The front cylinder brake 105 and the rear cylinder brake 106 are operated.

Reference numeral 105 denotes a front cylinder brake provided on a front wheel (not shown), and the front cylinder brake 105 brakes the front wheel by rotation of a pivot lever 117 which will be described later.

106 is a rear cylindrical brake provided on a rear wheel (not shown), and the cylindrical brake 106 brakes the rear wheel by pulling a balance member 121 which will be described later.

111 is a cover attached to the body of the two-wheeled vehicle (not shown). As shown in FIGS. 9 and 10 , the cover 111 is formed by bending a flat plate cut into a predetermined shape. The cover 111 is generally composed of the following parts: a substantially reverse L-shaped base plate 111A; left and right upper side wall plates 111B, 111C bent and extended from the upper end of the base plate 111A in the figure; The lower side wall plate 111D; the folded plate 111E that bends the lower side wall plate 111D and extends parallel to the base plate 111A; extends from the left side of the upper and lower middle position of the base plate 111A, and the left side The upper side wall 111B is opposite to the middle wall 111F.

The middle wall plate 111F is in contact with the other end of the equalizing part 121 pulled by the spring force in the rear cylinder brake 6 , thus constituting a stop member for positioning the equalizing part 121 .

In addition, the following components are provided on the cover 111: the first bracket 112, which is located on the upper side wall plate 111B on the left side, and is used to install the bushing 123B of the left brake wire 123 described later; the second bracket 113 , which is located on the upper side wall plate 111C on the right side, and is used to install the sleeve 125B of the right brake wire 125 described later; the third bracket 114, which is located on the right side of the lower side wall plate 111D, is used to install the first 1. A bushing 126B for the brake driving wire 126; a fourth bracket 115, which is located on the middle wall 111F, and is used for mounting the bushing 127B of the second brake driving wire 127 described later. Furthermore, the brackets 112 to 115 are formed integrally with the cover by bending a part of the cover 111 into a U-shape or an L-shape. In addition, the first bracket 112 has a larger gap with the upper side wall plate 111B than the other brackets 113 to 115 .

Also, as shown in FIG. 4 , the cover 111 is provided with rod support pieces 116, 116 extending from the right side of the base plate 111A near the lower side and the right side of the folded plate 111E to the right. Between the rod support pieces 116, A swivel lever 117 is pivotally supported.

117 is a turning rod attached to the cover 111, and the turning rod is formed by bending a flat plate cut into a predetermined shape. Also, a pin insertion hole 117A is provided at one end in the longitudinal direction of the pivot lever 117 , and the pivot lever 117 is rotatably supported between the support pieces 116 by the pin 18 inserted in the pin insertion hole 117A. In addition, a first rod connection hole 117B and a wire connection hole 117C are provided at an intermediate position in the longitudinal direction of the pivot rod 117, and a second rod connection hole 117D is provided at the other end. In addition, the first connecting rod 119 is connected to the first rod connecting hole 117B, the wire main body 126A of the first brake driving wire 126 is connected to the wire connecting hole 117C, and the second connecting rod 119 is connected to the second rod connecting hole 117D. Rod 122.

Here, the rod connection hole 117B and the wire connection hole 117C are arranged at a distance of L1 from the center of the pin insertion hole 117A serving as a pivot point, and the second rod connection hole 117D is arranged at the center of the pin insertion hole 117A. It is only at a distance from L2. In addition, the ratio of the distance L1 between the rod connection hole 117B, the wire connection hole 117C, and the pin insertion hole 117A, and the distance L2 between the second rod connection hole 117D and the pin insertion hole 117A is set to, for example, 1:1.5 to 1:1. In the range of 2.5, it is best to set it to about 1:2.

119 is a first connecting rod located on the right side in the cover 111 and vertically arranged vertically to the swivel rod 117 , and a long hole 119A extending in the longitudinal direction is drilled on the lower side of the first connecting rod 119 . A wire connection hole 119B is formed at the upper end of the first connecting rod 119 for connecting the wire main body 125A of the right brake wire 125 . Furthermore, the long hole 119A of the first connecting rod 119 is connected to the first rod connecting hole 117B of the pivoting rod 117 via the pin 120 .

121 is an equalizing part located on the upper side of the cover 111 in a free state. The equalizing part 121 is arranged to be parallel to the rotary rod 117. Like the rotary rod 117, it is also formed by bending a flat plate. Forming. Also, the balance part 121 is provided with: a steel wire connection hole 121A, which is located in the middle of the length direction of the balance part, and is used to connect the steel wire main body 123A of the left brake wire 123; a rod connection hole 121B, which is located at one end of the balance part length direction , used to connect the second connecting rod 122; steel wire connecting hole 121C, which is located at the other end of the balance part, used to connect the steel wire main body 127A of the second brake driving steel wire 127, and an arc-shaped contact is formed at one end of the balance part 121 Part 121D, when the front cylinder brake 5 fails, the contact part is in contact with the upper side wall plate 111C of the cover 111.

Here, the wire connection hole 121C connected to the rear cylinder brake 106 side is arranged at a position only L3 away from the wire connection hole 121A connected to the left brake wire 123 side, and the rod connected to the swing lever 117 side is provided. The connection hole 121B is arranged at a position only L4 away from the wire connection hole 121A. In addition, the ratio of the distance L3 between the steel wire connection hole 121C and the steel wire connection hole 121A and the distance L4 between the rod connection hole 121B and the steel wire connection hole 121A is set in the range of 1:2 to 1:3, preferably 1. : 2.5.

122 is a second connecting rod perpendicular to the rotating rod 117 and the equalizing member 121 and parallel to the first connecting rod 119 . The lower side of the second connecting rod 122 is pierced with a long hole 122A extending in the longitudinal direction. In addition, the upper end of the second connecting rod 122 is connected to the rod connecting hole 121B of the balance member 121 through the pin 120 , and the long hole 122A is connected to the second rod connecting hole 117D of the swing rod 117 through the pin 120 .

Here, the revolving rod 117, the first connecting rod 119, the equalizing member 121, the second connecting rod 122, etc. are integrally assembled with the cover 111 to constitute one component unit of the braking device for a two-wheeled vehicle.

123 is a left brake wire, the left brake wire 123 is composed of a steel wire main body 123A and a sleeve 123B, wherein one end of the steel wire main body 123A is connected to the left handle 101, and the other end is connected to the steel wire connection hole 121A of the equalizing part 121; The sleeve 123B is provided on the outer peripheral side of the wire main body 123A, and a threaded portion 123B1 is formed on the outer peripheral side of the other end of the sleeve 123B. In addition, the other end of the bushing 123B is mounted on the first bracket 112 via two nuts 124, 124 so that its position can be adjusted.

125 is a right brake wire, and the right brake wire 125 is composed of a steel wire main body 125A and a sleeve 125B, wherein one end of the steel wire main body 125A is connected with the right handle 103, and the other end is connected with the steel wire connecting hole 119B of the first connecting rod 119 Connection; the sleeve 125B is provided on the outer peripheral side of the wire main body 125A, and the other end of the sleeve 125B is positioned on the second bracket 113 .

126 is the first brake driving steel wire that becomes the first connecting member. The first brake driving steel wire 126 is composed of a steel wire main body 126A and a sleeve 126B, wherein one end of the steel wire main body 126A is connected with the steel wire connecting hole 117C of the rotary rod 117 , and the other end is connected with the front cylinder brake 105; the sleeve 126B is arranged on the outer peripheral side of the steel wire main body 126A, and one end of the sleeve 126B is positioned on the third bracket 114.

127 is the second brake driving steel wire that becomes the second connecting member. The second brake driving steel wire 127 is composed of a steel wire main body 127A and a sleeve 127B, wherein one end of the steel wire main body 127A is connected with the steel wire connecting hole 121C of the equalizing part 121 , and the other end is connected with the rear cylinder brake 106; the sleeve 127B is arranged on the outer peripheral side of the steel wire main body 127A, and one end of the sleeve 127B is positioned on the fourth bracket 115.

128 is an extension spring located between the lower side wall plate 111D of the cover 111 and the balance part 121. The extension spring 128 always pulls the steel wire main body 123A of the left brake 123 through the balance part 121 to prevent the left handle 101 from shaking.

The brake device for a two-wheeled vehicle of the present embodiment has the above-mentioned structure, and the installation sequence of the steel wires 123, 125, 126, 127 and the adjustment method of each part will be described below.

First, the wire main body 127A of the second brake driving wire 127 is connected to the wire connection hole 121C of the balance member 121 , and the sleeve 127B is attached to the fourth bracket 115 . In addition, the wire main body 126A of the first brake driving wire 126 is connected to the wire connection hole 117C of the swing lever 117 , and the sleeve 126B is attached to the third bracket 114 .

Next, the wire main body 123A of the left brake wire 123 is connected to the wire connecting hole 121A of the equalizer member 121 , and the sleeve 123B is attached to the first bracket 112 with the nut 124 . Also, the wire body 125A of the right brake wire 125 is connected to the wire connection hole 119B of the first connecting rod 119 , and the sleeve 125B is attached to the second bracket 113 .

Install each steel wire 123,125,126,127 like this, then between the long hole 119A of the first connecting rod 119 and the pin 120, the gap between the long hole 122A of the second connecting rod 122 and the pin 120 has just been eliminated, and The protruding amount of the wire main body 123A of the left brake wire 123 can be adjusted by using the nut 124 screwed on the bushing 123B until the balance part 121 can touch the middle of the cover 111 through the spring force in the rear cylinder brake 106 wall panel 111F. This prevents rattling of the parts and makes the brakes more sensitive in operation.

Next, the operation of the braking device to which the wires 123, 125, 126, and 127 are attached in this order will be described.

First, when the right handle 103 is held and turned, the first connecting rod 119 is pulled in the arrow A direction by the right brake wire 125 . Then, the turning lever 117 turns in the direction of the arrow B, pulls the first brake driving wire 126, actuates the front cylinder brake 105, and brakes the front wheels.

At this time, since the first connecting rod 119 and the brake driving steel wire 126 are connected to the first rod connecting hole 117B and the steel wire connecting hole 117C, the amount of operation when the right handle 103 is turned can make the front cylinder brake as it is. 105 actions can accurately adjust the braking force given to the front wheel. The first bar connecting hole 117B and the steel wire connecting hole 117C are arranged at a distance L1 apart from the pin insertion hole 117A with the fulcrum of rotation.

On the other hand, when the left handle 101 is held and rotated, the balance member 121 is pulled in the arrow A direction by the left brake wire 123 . In this way, the equalizing member 121 pulls the second brake driving wire 127 to activate the rear cylinder brake 106 to brake the rear wheel.

Again, when pulling the balancing member 121 along the direction of the arrow A, the turning lever 117 is rotated along the direction of the arrow B through the second connecting rod 122, and the brake driving wire 126 is pulled to make the front cylinder brake 105 act, and the front wheel Braking is also performed.

At this time, the ratio of the distance L3 of the steel wire connecting hole 121C to the steel wire connecting hole 121A and the distance L4 of the rod connecting hole 121B to the steel wire connecting hole 121A is set to about 1:2.5, so the wire connected to the steel wire connecting hole 121C The second brake driving wire 127 is pulled by a large force, and a large braking force is applied to the rear wheel through the rear cylinder brake 106 . In addition, the second connecting rod 122 is pulled by a small force corresponding to the above-mentioned ratio, and the turning lever 117 is turned in the arrow B direction.

Next, since the ratio of the distance L1 of the wire connection hole 117C to the pin insertion hole 117A and the distance L2 of the second rod connection hole 117D to the pin insertion hole 117A is set to about 1:2, the second connection rod 122 when turning lever 117 to turn around, pull the 2nd brake driving steel wire 126 with 1/2 stroke of turning amount at this moment.

Therefore, when the left handle 101 is rotated, the operating force is reduced to about 1/2.5 by the balance member 121 . However, on the swivel lever 117, due to the distance relationship between the steel wire connecting hole 117C and the second rod connecting hole 117D relative to the pin insertion hole 117A, the force of pulling the first brake driving steel wire 126 is increased to the right handle 103. It is twice as fast as during the turning operation, therefore, the front cylinder brake 105 can be auxiliary operated, and the braking force can be given to the front wheels.

Next, the situation that the two-wheeled vehicle breaks down during operation, for example, the first brake driving wire 126 is broken, and the front cylinder brake 105 cannot be used will be described.

First, when the left handle 101 is held and rotated in the state where the first brake driving wire 126 is broken, the balance member is pulled in the arrow A direction by the left brake wire 123 . At this time, as shown in FIG. 13 , since the rotary lever 117 is in a free state, the rotary lever 117 is largely rotated in the direction of the arrow C, and the contact portion 121D of the balance member 121 is in contact with the upper side wall plate 111C of the cover 111. catch.

However, by further rotating the left handle 101 from the state where the contact portion 121D of the balancing member 121 is in contact with the cover 111, the other end of the balancing member 121 is turned in the direction of the arrow D to pull the second brake driving wire 127, By actuating the rear cylinder brake 106, braking force can be applied to the rear wheels.

In this way, according to the braking device for a two-wheeled vehicle of this embodiment, when the left handle 101 is rotated, the rear wheel braking force is given by the rear cylindrical brake 106, and the front wheel can also be applied by the front cylindrical brake 105. Since auxiliary braking is performed, even if only the left handle 101 is operated during deceleration, the front and rear wheels can be moderately braked, the lever operation is easy, and stable braking force can be obtained.

In addition, when the front cylinder brake 105 is actuated by the right handle 103, the operation amount of the right handle 103 can actuate the front cylinder brake 105 as it is, so that the load can be reliably applied during braking. The front wheel braking force can improve the stability when braking.

Also, when the left handle 101 is operated, the rear cylindrical brake 106 acts preferentially to give a large braking force to the rear wheel, and the auxiliary braking force is given to the front wheel through the front cylindrical brake 105. Therefore, when braking The rear wheel can be braked first to stabilize itself.

In addition, when the swivel rod 117 is installed on the cover 111, one end of the swivel rod 117 is pivotally supported on the rod support piece 116 of the cover 111, and the first connecting rod 119, the second connecting rod 122, the first The brake driving wires 126 are collectively connected to the other side of the swivel rod 117, so the installation space around the swivel rod 117 can be reduced, and the brake device can be miniaturized as a whole.

Also, when the left handle 101 is operated, the braking force produced by the front cylinder brake 105 is mechanically set according to the ratio of the installation positions of the components relative to the rotary rod 117 and the equalizing part 121, so the ratio should be adjusted appropriately. Just can be easily adapted to the needs of various two-wheeled vehicles, can expand the scope of use of this braking device.

Even when the front cylinder brake 105 cannot be used, the rear wheel braking force can be applied by operating the left handle 101, so that the vehicle can surely decelerate in a running state and ensure safety.

On the other hand, since the cover 111, the swivel lever 117, the equalizing member 121, etc. are made by bending a flat plate cut into a predetermined shape, these components can be manufactured easily and cheaply, and the productivity can be improved and the reduction can be reduced. Cost of production.

Next, Fig. 14 shows the braking device for a two-wheeled vehicle according to Embodiment 3 of the present invention. In the third embodiment, the front wheel and the rear wheel are respectively designed as disc brakes. In addition, in this embodiment 3, the same symbols are used for the same components as in the above-mentioned embodiment 2, and the description thereof will not be repeated.

151 is a cover of this embodiment, and this cover 151 is comprised from the base plate 151A, upper side wall panels 151B, 151C, lower side wall panel 151D, and folded panel 151E. Also, the cover 151 is provided with a first bracket 152 , a second bracket 153 , rod support pieces 54 and 55 , a first cylinder bracket 56 , and a second cylinder bracket 57 .

158 denotes a first pivoting lever supported pivotally on the right side lever supporting piece 154. A pin insertion hole 158A, a first lever connecting hole 158B, and a second lever connecting hole 158C are provided on the first pivoting lever 158. In this embodiment, however, a rod connection hole (not shown) is provided at a position equal to the distance from the first rod connection hole 158B to the center of the pin insertion hole 158A.

159 is the first master oil cylinder installed on the first oil cylinder bracket 156 of the cover 151. The first master oil cylinder 159 is supplied with hydraulic pressure by pushing the piston from the outside, and constitutes the main body of the brake and the front disc on the front wheel. brakes. And this front disc brake supplies the hydraulic pressure from the master oil cylinder 159 to the brake main body connected by the oil pressure hose, so that the brake flange of the brake main body is provided to the brake discs (neither of them on the front wheel) As shown in the figure), push the brake force to the front wheel.

160 is the first push rod that is located between the first rotary rod 158 and the first master oil cylinder 159 and constitutes the first connecting member. One end of the push rod 160 is telescopically screwed on the mounting bracket 162, and the other end is connected with the The pistons of the main oil cylinder 159 are connected, and the mounting bracket is connected to the rod connection hole of the rotary rod 158 through a pin 161 . In this way, the length of the first push rod 160 can be adjusted according to the distance between the rotary rod 158 and the master oil cylinder 159 .

Reference numeral 163 denotes a second swing lever pivotally supported by the left lever support piece 155, and the second swing lever 163 has a pin insertion hole 163A, a lever connection hole 163B, and a lever connection hole (not shown).

164 is a second master cylinder mounted on the second cylinder bracket 157 of the cover 161. The second master cylinder 164 is supplied with hydraulic pressure by pushing the piston from the outside, and constitutes the brake main body and the rear disc brake provided on the rear wheel. . In addition, the rear disc brake supplies hydraulic pressure from the master cylinder 164 to the brake main body connected by the hydraulic hose, so that the brake flange of the brake main body is supplied to the brake disc (neither of which is provided on the rear wheel). As shown in the figure), push the brake force to the rear wheel.

165 is the 2nd push rod that is located between the 2nd rotary rod 163 and the 2nd master oil cylinder 164, constitutes the 2nd connecting member, and one end of this push rod 165 is telescopically screwed on the mounting bracket 167, and the other end is connected with the mounting bracket 167. The pistons of the main oil cylinder 164 are connected, and the mounting bracket is connected to the rod connection hole of the rotary rod 163 through a pin 166 . In this way, the length of the second push rod 165 can be adjusted according to the distance between the rotary rod 163 and the master oil cylinder 164 .

168 is the 3rd connecting rod that is arranged in parallel with the 1st connecting rod 119 and the 2nd connecting rod 122, and connects between the balance member 121 and the 2nd turning rod 163, and the 3rd connecting rod 168 is pierced on the Long hole 168A extending in the longitudinal direction. Furthermore, when the equalizer member 121 is pulled in the arrow A direction, the third connecting rod 168 rotates the second turning lever 163 in the arrow E direction.

In addition, 169 is the right brake wire of this embodiment, the right brake wire 169 is basically the same as the right brake wire 125 of the second embodiment, one end of which is connected to the right handle 103, and the other end is connected to the 1 The steel wire main body 169A on the connecting rod 119, and the sleeve 169B provided on the outer peripheral side of the steel wire main body 169A. A threaded portion 169B1 is formed at the other end of the sleeve 169B, and the sleeve 169B is attached to the second bracket 153 via nuts 170, 170 so that its position can be adjusted.

The two-wheeled vehicle braking device of the present embodiment is constituted in this way, and can obtain substantially the same effect as the two-wheeled vehicle braking device of the above-mentioned embodiment 2. Disc brakes are respectively arranged on the wheel and the rear wheel, so the braking force can be increased to the maximum, and it can be applied to two-wheel vehicles with higher performance.

As described in detail above, according to the braking device for a two-wheeled vehicle of the present invention, by holding the right handle and turning it, the first connecting rod can be pulled to rotate the rotating rod. The first connecting member is actuated, and the braking force can be applied to the front brake through the actuation of the first connecting member. At this time, the pulling force generated by the rotation of the right handle can be directly transmitted to the first connecting member by the first connecting rod. Therefore, the operation amount of the right handle can be directly used to actuate the front brake, and the front wheel bearing the load can be braked reliably during braking. to improve stability during braking.

Again, by holding the left handle and turning it around, the balance part can be pulled, and the balance part can be pulled by the second connecting member connected to one side or the other side in the length direction of the balance part. The braking force is given to the rear brakes. At the same time, the rotary rod can be rotated by the second connecting rod connected to the other side of the length direction of the balance part, so the first connecting member will act accordingly according to the rotation of the rotary rod to give the braking force to the front. brakes.

According to another brake device for a two-wheeled vehicle of the present invention, by holding the right handle and turning it, the first connecting rod is pulled to make the turning rod turn, and the pushing member connected to the turning rod pushes the The piston in the master cylinder cover pushes the brake fluid, and the brake fluid can apply the braking force to the front brake. At this time, the pulling force generated by the rotation of the right handle is directly transmitted to the piston from the first connecting rod. Therefore, the operation amount of the right handle can directly actuate the front brake, and the front wheel under load can be surely braked during braking, improving Safety during braking is ensured.

In addition, by holding the left handle and turning it, the equalizing part can be pulled, and the braking force can be applied to the rear brake through the connecting body connected to one side of the equalizing part in the length direction. At the same time, the rotary rod can be rotated through the second connecting rod connected to the other side in the length direction of the balance part, so the piston in the master cylinder cover can be pushed by the pushing member according to the rotation of the rotary rod, and the braking force can be given to the front brake. .

Therefore, even if only the left handle is operated during deceleration, an appropriate braking force can be given to the front and rear wheels, making the operation of the lever easy and stable braking force can be obtained. Also, when the left and right handles are operated simultaneously, the braking force corresponding to the operating force of each lever can be given to the front wheel and the rear wheel. At this time, although the force generated by the operation of the left handle and the force generated by the operation of the right handle on the front wheel act on the front wheel in a state of repeatedly acting on the swing lever, the braking force is generated according to the one with the greater force. Therefore, it will not feel uncoordinated in operation.

In addition, since the cover of the master cylinder that supplies the brake hydraulic pressure to the front brake is used as the master cylinder cover for installing the swing rod and the connecting body, it is not necessary to separately install the cover required for these components, and the brake device can be simplified. The structure is favorable for cost reduction and device miniaturization.

In addition, the master cylinder cover is made of castings made of aluminum, for example, so that the rigidity can be improved. Therefore, the deformation caused by the load when the brake is operated can be suppressed, the brake can be operated accurately, and the operability and life of the brake can be improved. .

Also, since the pivoting rod is configured to sandwich the axis of the main oil cylinder cover, and the pivoting rod is parallel to the equalizing part, the other side in the longitudinal direction of the pivoting rod and the other side in the longitudinal direction of the equalizing part are connected by the second connecting rod. Since the width of the master cylinder cover can be effectively utilized, and the swing rod and the balance member can be overlapped in the axial direction, the space required for installation can be reduced.

According to the present invention, the first connecting rod and the brake wire connecting the first connecting rod to the right handle are independently arranged on the side of the first rod, and the balance member, the second connecting rod, and the second connecting rod are arranged independently. 2. The steel wire connected to the left handle is independently arranged on the side of the second rod. Since it can be arranged in this way, the installation space in the left and right directions can be reduced, and the entire brake device can be miniaturized.

For another example, the operating system performed by the left handle can be independently arranged on the front side of the main oil cylinder cover, and the operating system performed by the right handle can be independently arranged on the rear side of the main oil cylinder cover, so the front and rear sides of the main oil cylinder cover can be effectively used, and the Efficient arrangement of components enables the miniaturization of the device and improves the assemblability and maintainability of the device.

According to the present invention, the push member is a push pin, and the push pin is arranged in a direction perpendicular to the axis of the piston. Therefore, the installation space for assembling the push pin on one side of the master cylinder cover can be reduced, and the braking device can Miniaturized in the axial direction.

According to the present invention, the two ends of the push pin are supported on the first rod part and the second rod part of the rotary rod, so the first rod part and the second rod part can be connected by the push pin, and the first rod part and the second rod part can be improved. 2 The strength against torsion between the rods can improve the life and operability of the brake device.

According to the present invention, when the front brake is in an unusable state due to brake fluid leakage, for example, even if the balance member is pulled by the left handle, the other side of the balance member in the longitudinal direction can be moved. Contact the stop surface of the balance part, and use the contact point as a fulcrum to make one side of the balance part in the length direction rotate, so that the left handle can be used to pull the connecting body connected to the side of the balance part in the length direction. Therefore, the braking force can be applied to the rear brake, and the vehicle can be surely decelerated from the running state, ensuring safety and reliability.

According to the present invention, the balancing member can be positioned in a state where the balancing member is in contact with the stopper member by the spring force in the cylinder brake, so that the work efficiency during installation is improved, and the labor productivity is improved.

According to the present invention, by pulling the balance part with the left handle, when the rotary rod is rotated by the second connecting rod, in order to rotate the rotary rod, a stroke that is 1.3 to 2.5 times larger than that of the first connecting rod is required, but it can be used accordingly. A large force moves the pushing member provided near the connecting position of the first connecting rod, so that the required braking force can be supplied to the front brake, and the braking ability can be improved.

According to the present invention, by pulling the balance member with the left handle, the connecting body connected near the connection position of the left handle is moved with a force greater than that of the second connecting rod, so that a large braking force can be supplied to the rear brake. At this time, on the other side in the length direction of the balance part, the second connecting rod connected to a position 2-3 times farther than the connection position of the connecting body is used to rotate the rotary rod with a force smaller than that of the connecting body, and the front Brakes can also give braking force. In this way, a greater braking force than that given to the front brakes can be given to the rear brakes, so that the rear brakes can brake in advance, improving the stability during braking.

According to another brake device for a two-wheeled vehicle of the present invention, hold the right handle and make it rotate, so the first connecting rod is pulled, and the rotating rod is rotated, which is pushed by the pushing member connected to the rotating rod. The piston in the master cylinder pushes the brake fluid, and the braking force can be applied to the front brake through the brake fluid. At this time, the first connecting rod and the pushing member are respectively connected to the middle position in the length direction of the turning rod, therefore, the first connecting rod can almost directly transmit the pulling force generated by the rotation of the right handle to the pushing member, and the operation of the right handle The resulting braking force is directly supplied to the front brakes. In this way, the load-bearing front wheel can be surely braked during braking, and the stability during braking is improved.

Again, hold the left handle and turn it around, then pull and operate the balance part, and the braking force can be given to the rear brake by the connecting body connected to the lengthwise side of the balance part. Simultaneously, the rotary rod can also be rotated by the second connecting rod connected to the other side of the length direction of the equalizing part. Therefore, according to the rotation of the rotary rod, the piston in the main oil cylinder can be pushed by the pushing member to reduce the braking force. For the front brakes.

In this way, even if only the left handle is operated during deceleration, moderate braking force can be applied to the front and rear wheels, making lever operation easy and stable braking force can be obtained. In addition, when the left and right handles are operated at the same time, the braking force corresponding to the operating force of each lever can be provided to the front and rear wheels. In this case, for the front wheels, although the force generated by operating the left handle and the force generated by operating the right handle repeatedly act on the swing lever, since the braking force is generated by the force of the larger force, Therefore, there is no sense of incongruity in operation.

In addition, since the axis of the piston in the main cylinder is located on the tangent to the rotation of the push member by the rotation rod, when the rotation rod is pulled toward the axial direction and rotated, the force at this time can effectively act on the main cylinder. On the piston in the oil cylinder, the braking force of the front brake can be increased.

Claims (10)

1. brake for two-wheeled car, this device is by constituting with lower member: cover, it is installed on the vehicle body; Pivoted lever, it is located on the described cover, with respect to a side of the length direction of described cover as the revolution fulcrum, and with pivot suspension on described cover; The 1st pipe link, it with the perpendicular state configuration of described pivoted lever on described cover, the slotted hole that wears along its length of the 1st pipe link is combined on the midway location of pivoted lever length direction, simultaneously be located at right handle on right handles be connected and carry out the tractive operation; Equalizer section, it with the state configuration that parallels with described pivoted lever on described cover, on the midway location of this equalizer section length direction be located at left handle on left handle be connected and carry out the tractive operation; The 2nd pipe link, it is to be configured with the perpendicular state of described equalizer section and described pivoted lever, in a side of described equalizer section length direction or any side among the opposite side, the slotted hole that wears along its length simultaneously is combined in the opposite side of described pivoted lever length direction with pivot suspension; Front brake, it is used for giving braking force to front-wheel; Rear brake, it is used for giving braking force to trailing wheel; The 1st transom, it couples together described pivoted lever length direction midway location and described front brake; The 2nd transom, it couples together a side of described equalizer section length direction or any side and the described rear brake among the opposite side.

2. brake for two-wheeled car, this device is by constituting with lower member: master cylinder cover, its inside are provided with the pushing braking liquid is used, piston mobile in the axial direction, are used for giving braking force to front brake; Pivoted lever, it clips the axis of described master cylinder cover and is positioned at its both sides configuration, and a side of this pivoted lever length direction pivotally is bearing on the described master cylinder cover as the revolution fulcrum; The 1st pipe link, it with the state configuration vertical with described pivoted lever on described master cylinder cover, the slotted hole along axially wearing of the 1st pipe link is combined on the midway location of described pivoted lever, simultaneously be located at right handle on right handles be connected and carry out the tractive operation; Equalizer section, it with the state configuration parallel with described pivoted lever on described master cylinder cover, on the midway location of this equalizer section length direction be located at left handle on left handle be connected and carry out tractive operation; The 2nd pipe link, it is to be configured with the perpendicular state of described equalizer section and described pivoted lever, pivotally be bearing in the opposite side of described equalizer section length direction, the slotted hole that wears vertically simultaneously is combined in the opposite side of described pivoted lever length direction; Promote member, it is located between the midway location and the piston in the described master cylinder cover of described pivoted lever, is used to promote this piston; Connector, it will couple together between side of described equalizer section length direction and the rear brake.

3. brake for two-wheeled car as claimed in claim 2, it is to constitute like this, be that described pivoted lever constitutes fork-like shape by installation portion, the 1st bar portion and the 2nd bar portion, wherein: described installation position is in a side of this pivoted lever length direction, it is installed on the described master cylinder cover, can turn round; Described the 1st bar portion is the opposite side that extends to length direction from described installation portion, at the outer circumferential side of described master cylinder cover; Described the 2nd bar portion is across described master cylinder cover and extend to the opposite side of length direction at the opposition side of described the 1st bar portion, and described the 1st pipe link is connected in described the 1st bar portion, and described the 2nd pipe link is connected in described the 2nd bar portion.

4. as claim 2 or 3 described brake for two-wheeled car, it is characterized in that, described promotion member be with the perpendicular direction of the axis of described piston on the pushing pin that sets.

5. brake for two-wheeled car as claimed in claim 4 is characterized in that, with the two supports of described pushing pin in the 1st bar portion and the 2nd bar portion of described pivoted lever.

6. as claim 2 or 3 described brake for two-wheeled car, it is characterized in that, on described master cylinder cover, be that the equalizer section stop surface is set like this, promptly when with described left handle during with the big described equalizer section of power tractive, described equalizer section stop surface just touches the opposite side of this equalizer section length direction and limits it and move.

7. as claim 2 or 3 described brake for two-wheeled car, it is characterized in that, described rear brake is made of drum brake, be that stopper element is set like this on described master cylinder cover, promptly a side that makes this stopper element touch described equalizer section length direction by the spring force in the described drum brake limits the revolution of this equalizer section.

8. as claim 2 or 3 described brake for two-wheeled car, it is characterized in that, with the revolution fulcrum of described pivoted lever one side with promote length between the connection location of member, and the length ratio rate between the revolution fulcrum of described pivoted lever one side and the connection location of the 2nd pipe link is set at about 1: 1.3-1: 2.5.

9. as claim 2 or 3 described brake for two-wheeled car, it is characterized in that, with the length between the connection location of the connection location of described equalizer section and described left handle and described connector, and the length ratio rate between the connection location of the connection location of described equalizer section and described left handle and the 2nd pipe link is set at about 1: 2-1: 3.

10. brake for two-wheeled car, this device is by constituting with lower member: cover, it is installed on the vehicle body; Master cylinder, it is installed on the described cover, and inside is provided with and promotes the piston that braking liquid is used, and is used for giving braking force to front brake; Pivoted lever, it clips the axis of described cover and is positioned at the configuration of its both sides, with a side of this pivoted lever length direction as the revolution fulcrum, with pivot suspension on described cover; The 1st pipe link, it with the perpendicular state configuration of this pivoted lever on described cover, the slotted hole that wears along its length of the 1st pipe link is combined on the midway location of this pivoted lever, simultaneously be located at right handle on right handles be connected and carry out the tractive operation; Equalizer section, it with the state configuration that parallels with described pivoted lever on described cover, on the midway location of length direction be located at left handle on left handle be connected and carry out the tractive operation; The 2nd pipe link, it is to be configured with the perpendicular state of this equalizer section and pivoted lever, and with the opposite side of pivot suspension at this equalizer section length direction, the slotted hole that wears along its length simultaneously is combined on the opposite side of described pivoted lever length direction; Promote member, it is located between the midway location and the described piston in the described master cylinder of described pivoted lever, is used to promote this piston; Connector, it will couple together between side of described equalizer section length direction and the rear brake, this brake for two-wheeled car is to constitute like this, being about to the revolution fulcrum end wise that described promotion member is located at the described pivoted lever of distance is on the position of given size, on the tangent line when making the axis that is located at the piston in the described master cylinder be positioned at described promotion member to turn round by described pivoted lever.

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