JP2000053064A - Brake device for bar-handle vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To inexpensively and easily set the distribution of the braking force of a front/rear wheel brake, and when two brake operators are operated almost simultaneously, to prevent the forced burden in the operating force with a good operating feeling. SOLUTION: A second brake 9 and a second brake operator 14 are connected by a brake operating means 24 for an interlocking system. A vehicle body is provided with a brake unit 22. A first turning lever 52, a second turning lever 53, and a third turning lever 54 are provided so as to be turnable around a supporting shaft 51 respectively. A first brake operator 12 and the first turning lever 52 are connected by a traction side interlocking means 20 for the independent system of the brake. A first brake 5 and the second turning fever 53 are connected by a driven side interlocking means 21 for the independent system of the brake. Further, the back panel 40 of the second brake 9 and the third turning lever 54 are connected by a driven side interlocking means 23 for the interlocking system of the brake.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a brake device applicable to various kinds of bar handle vehicles such as motorcycles, three-wheeled vehicles, and three- and four-wheeled buggies. The present invention relates to a brake system for a bar-handle vehicle provided with a single brake system for operating either one of them, and an interlocking brake system for operating both a front wheel brake and a rear wheel brake.

[0002]

2. Description of the Related Art A brake device for operating both a front wheel brake and a rear wheel brake of a bar handle vehicle is disclosed in, for example, Japanese Patent Application Laid-Open No. 8-104280.
This technology uses both front and rear wheel brakes for two
This is a two-system interlocking type brake device that can be operated by any of the two brake operators. The brake is located at the height between the two brake operators at the top of the vehicle and the front and rear wheel brakes at the lower front and rear of the vehicle. A first wire cable connected to one of the two brake operators and one of the front and rear wheel brakes on a movable pulley provided with a unit and movably provided on the brake unit; And the other of the front and rear wheel brakes is connected to the other of the front and rear wheel brakes by a second wire cable. The other of the front and rear wheel brakes and the other of the two brake operators are connected to a third Are connected by a wire cable.

[0003]

However, in the above-described configuration using the moving pulley as the brake unit, either one of the front and rear wheel brakes pulled by the first wire cable wound around the moving pulley is used. Then, the braking force distribution to the other brake connected to the moving pulley by the second wire cable is fixed at 1: 2, and there is no setting flexibility.

For this reason, in order to change the distribution of the braking force of the front and rear wheel brakes, it is necessary to change the basic setting of changing at least one of the front wheel brake and the rear wheel brake to another having a different braking force. This leads to higher costs. In addition, if a favorable braking force distribution cannot be obtained with an existing brake, it is necessary to design a new brake, and the cost increase is immeasurable.

When the other brake operator is operated first after the other brake operator is operated in the above configuration, the first wire cable is connected to the other brake through the movable pulley of the brake unit. Since the tension by the operation of the operation member is applied, one of the brake operation members must be operated with a considerable force from the beginning of operation, and the operation feeling is lowered.

Further, after operating one of the brake operators to activate the front and rear wheel brakes, the other brake operator is additionally operated to increase the braking force of the front and rear wheel brakes. If you want, the brake operator later,
If it is not greater than the operation force of the previous brake
Since the braking force of the rear wheel brake does not increase, a large load is imposed on the operating force of the brake operator afterward.

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and an object thereof is to make it possible to easily and inexpensively set the distribution of the braking force of the front and rear wheel brakes and to use two brake operators. It is an object of the present invention to provide a brake device for a bar handle vehicle that has a good operation feeling even when operated in sequence and does not impose a burden on the operation force.

[0008]

According to the above object, according to the first aspect of the present invention, one of a front wheel brake and a rear wheel brake disposed on the front and rear portions of a vehicle body is connected to a first brake operator and a second brake operator. A brake device for a bar handle vehicle, wherein a mechanical first brake is operated by one or both of brake operators and a second brake is operated by the second brake operator. The second brake may be a panel floating drum brake in which a back panel floats in the direction of rotation of the brake drum during braking, or a caliper floating type disc brake in which a caliper body floats in the direction of rotation of the disk rotor during braking. , The second
The brake and the second brake operator are connected by an interlocking brake operating means such as a wire cable, a rod, or a hydraulic pipe, and a first turning lever, a second turning lever, and a third turning lever are connected to the vehicle body. A brake unit is provided in which a rotation lever is provided so as to be rotatable around a support shaft, and the first brake operator and the first rotation lever are connected to a single system brake such as a wire cable or a rod. The first brake and the second rotary lever are connected by a driven side connecting means for a single system brake such as a wire cable or a rod, and a back panel or a caliper of the second brake is connected. The body and the third pivot lever are connected by an interlocking brake driven side linking means such as a wire cable or a rod, and the first pivot lever and the second pivot lever are connected to each other by the first brake operation. Child control Thus, when the first rotating lever is rotated in the operating direction, the second rotating lever is engaged so as to rotate in the direction of pulling the independent brake driven-side linking means, and the second rotating lever is engaged. The operating lever and the third rotating lever are moved to the third position by operating the second brake operating member.
When the rotating lever is rotated in the operating direction, the second rotating lever is engaged so as to rotate together in the direction of pulling the independent brake driven side linking means.

According to the second aspect of the present invention, one of the front wheel brake and the rear wheel brake disposed at the front and rear portions of the vehicle body is
A bar handle having a hydraulic first brake operated by one or both of a first brake operator and a second brake operator and the other being a second brake operated by the second brake operator A brake device for a vehicle, wherein the second brake is a panel-floating drum brake in which a back panel floats in the rotation direction of a brake drum during braking, or a caliper body floats in a rotation direction of a disk rotor during braking. The second brake and the second brake operator are connected by an interlocking brake operating means such as a wire cable, a rod, or a hydraulic pipe. A rotation lever, a second rotation lever, a third rotation lever, and a hydraulic master cylinder, wherein the first rotation lever, the second rotation lever, and the third rotation lever are connected to each other. A brake unit is provided so as to be rotatable around the support shaft, and the first brake operator and the first rotary lever are connected by a traction-side linking means for an independent brake such as a wire cable or a rod. And the first brake and the hydraulic master cylinder are connected by an independent brake hydraulic pipe, and the second rotating lever is
The hydraulic master cylinder is disposed so as to operate hydraulically, and the back panel and the caliper body of the second brake and the third rotating lever are connected to each other by an interlocking brake driven side connecting means such as a wire cable or a rod. And connecting the first pivoting lever and the second pivoting lever to the second pivoting lever when the first pivoting lever pivots in the operating direction by the operation of the first brake operating member. Are engaged so as to rotate together in the pressure increasing direction of the hydraulic master cylinder, and the third rotating lever is moved by operating the second brake operating member. When rotating in the operating direction, the second rotating lever is engaged so as to rotate together with the hydraulic master cylinder in the pressure increasing direction.

According to a third aspect of the present invention, there is provided a torque lever whose one end is pivotally supported on the vehicle body by a supporting shaft, A torque rod connected to the back panel and the caliper body of the second brake using a support shaft, respectively, a torque lever and a third lever of the brake unit;
And a wire cable connected to the rotating lever,
When the back panel or the caliper body floats in the rotation direction of the brake drum or the disc rotor, a support shaft serving as a rotation fulcrum of the torque lever and the torque rod are connected to the torque lever and the back panel or the caliper body of the second brake. And the two spindles connected to are located on the same straight line,
The pulling amount of the wire cable of the interlocking brake driven side linking means is regulated.

According to a fourth aspect of the present invention, the intermediate portion is pivotally supported on a back panel or a caliper body of the second brake by a supporting shaft. A torque lever, a torque rod connected to one end of the torque lever and the vehicle body using a support shaft, and a wire cable connected to the other end of the torque lever and a third pivot lever of the brake unit. When the back panel or the caliper body floats in the direction of rotation of the brake drum or the disc rotor, a support shaft serving as a rotation fulcrum of the torque lever and the torque rod are connected to the torque lever and the vehicle body. The two supporting shafts are positioned on the same straight line, and regulate the amount of pulling of the wire cable by the interlocking brake driven side linking means.

According to a fifth aspect of the present invention, the brake unit according to any one of the first to fourth aspects of the present invention is disposed at a height between the first brake operator and the first and second brakes. And the traction side linking means for the independent brake
The upper link is connected to the pivoting lever from above, and the driven side linking means for the independent brake and the hydraulic pressure pipe are connected to the second rotary lever from below, and the driven side linking means for the interlocking brake is connected to the third rotary lever below. Connect more.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 6 show the first embodiment of the present invention.
FIG. 1 is a schematic view showing an inoperative state of a brake device for a bar handle vehicle, FIG. 2 is a side view of a motorcycle, and FIG. 3 is a front view of a brake unit when an independent brake system is operated. Fig. 4 is a front view of the brake unit when the interlocking brake system is operated, Fig. 5 is a front view of the brake unit when both the independent brake system and the interlocking brake system are operated, and Fig. 6 is a driven side for the interlocking brake. FIG. 9 is a front view of the vicinity of a second brake showing an operation state of a linking unit.

7 and 8 show a second embodiment of the present invention. FIG. 7 is a front view around the second brake showing a non-operating state of the interlocking means for the interlocking brake, and FIG. It is a front view around the 2nd brake which shows the operating state of the driven side connection means for brakes. 9 to 12 show a third embodiment of the present invention, FIG. 9 is a schematic diagram of a non-operating state of a bar handle vehicle brake device, FIG. 10 is a front view of a brake unit when a single brake system is operated, FIG. 11 is a front view of the brake unit when the interlocking brake system is operated, and FIG. 12 is a front view of the brake unit when both the independent brake system and the interlocking brake system are operated.

A motorcycle 1 shown in a first embodiment of FIGS. 1 to 6 has a leg shield 2 wrapping a head pipe (not shown) at the front of a vehicle body, and is vertically installed below the leg shield 2. A front wheel 4 and a first brake 5 are supported at a lower end of the front fork 3 and a rear wheel 8 and a first brake 5 are provided at a rear end of a swing arm 7 which is supported by a rear suspension 6 at a rear portion of the vehicle body so as to be vertically swingable. Two brakes 9 are supported.

In front of an accelerator grip 11 provided at the right end of the handlebar 10, a first brake operator 12 using a brake lever is disposed, and near a step bar 13 projecting downward on the right side of the vehicle body. A second brake operator 14 using a brake pedal is provided, and a bar-handle vehicle brake device 15 used for the motorcycle 1 is configured such that the first brake operator 12 grips the first brake operator 15 to operate the first brake operator 12.
Independent brake system 16 that operates brake 5 independently
And an interlocking brake system 17 that operates by interlocking the first brake 5 and the second brake 9 by stepping on the second brake operator 14.

The independent brake system 16 is connected to the first brake 5 and the first brake operator 12, the independent brake traction-side connecting means 20 connected to the first brake operator 12, and the first brake 5. And a brake unit 22 interposed between the linking means 20 and 21. The interlocking brake system 17 includes the first brake 5 and the second brake 9, the second brake operator 14, the independent side linking means 21 for the independent brake, the brake unit 22, and the second brake 9 and the brake unit 22. , And an interlocking brake operating means 24 connecting the second brake operator 14 and the second brake 9 to each other.

Each of the first and second brakes 5 and 9 employs a mechanical reading and trailing type drum brake. When the motorcycle 1 travels forward, the brake drum ( (Not shown)
Is rotated integrally with the front wheel 4 and the rear wheel 8 in the direction of arrow A in FIG.

Wire cables are used for the traction-side connecting means 20 for the independent brake and the driven-side connecting means 21 for the independent brake, and a long rod is used for the operating means 24 for the interlocking brake. ing. The driven side linking means 23 for the interlocking brake has one end connected to the swing arm 7.
A torque lever 26 pivotally supported by a support shaft 25 is connected to the torque lever 26 at one end by a support shaft 27, and the other end is supported by a guide bracket 40 a integral with the back panel 40 of the second brake 9. Torque rod 2 connected at 28
9, the torque lever 26 and the brake unit 22
And the third rotation lever 54.

The first brake 5 and the second brake 9 are provided inside a back panel 40 supported by the front fork 3 or the swing arm 7 with a pair of bow-shaped brake shoes 4.
The brake shoes 41, 41 are disposed facing each other.
A cam shaft 42 for expansion and an anchor pin 43 serving as a fulcrum at the time of expansion are disposed between the ends of the back panel 40.
An operating lever 44 is rotatably fixed to an outer end of the cam shaft 42 protruding from the cam shaft 42. Shoe return springs 45, 45 are stretched between the brake shoes 41, 41,
The brake shoes 41, 41 include shoe return springs 45, 4
5 is always urged in the diameter reducing direction.

The actuating lever 44 of the first brake 5 is connected to the above-mentioned independent side linking means 21 for the independent brake,
The operating lever 44 and the back panel 4 of the first brake 5
A lever return spring 46 is contracted between the cable guide 40b and the cable guide 40b protruding from the zero, and constantly urges the driven side linking means 21 for the independent system brake and the operating lever 44 in the non-operating direction. The above-described interlocking brake operating means 24 is connected to the operating lever 44 of the second brake 9, and a pedal is provided between the vehicle body and the second brake operator 14 for towing the interlocking brake operating means 24. A return spring 47 is stretched, and constantly urges the second brake operating member 14, the interlocking brake operating means 24, and the operating lever 44 in the non-operating direction.

The back panel 40 of the first brake 5 is fixed to the front fork 3 using appropriate fixing means. On the other hand, the back panel 4 of the second brake 9
0 is supported by the torque rod 29 of the interlocking brake driven side linking means 23 connected at the center to the rear axle 48 and the outer peripheral side to the guide bracket 40a, and depresses the second brake operator 14 When the brake shoes 41, 41 of the second brake 9 slide against the inner peripheral surface of the brake drum, the back panel 40 is braked with the rear axle 48 as a fulcrum by the drag torque from the brake shoes 41, 41. Drum rotation direction (arrow A
Floating type).

With this configuration, when the back panel 40 of the second brake 9 floats in the rotation direction of the brake drum, the back panel 40 moves the torque rod 29 of the interlocking brake driven side linking means 23 to the back panel 40. Direction, the torque rod 29 is
6 is turned around the support shaft 25 in the operating direction (clockwise in FIG. 1).
Then, the torque lever 26 pulls the wire cable 30 in the direction of the second brake 9.

The floating of the back panel 40 and the towing operation of the interlocking brake driven side linking means 23 due to the floating of the back panel 40 are performed in such a manner that the torque lever 26 and the support shafts 25, 27, 28 of the torque rod 29 are linearly moved. In a state where the support shafts 25, 27, and 28 are positioned in a straight line, the back panel 40 stops floating and the towed movement of the driven side linking means 23 for the interlocking brake is stopped. Is regulated (FIG. 6).

The brake unit 22 is provided with a first pivot lever 5 on a support shaft 51 projecting from one side surface of a bracket 50.
2, a second pivoting lever 53 and a third pivoting lever 54 are rotatably provided, and a bracket 50 is fixedly attached to the vehicle body inside the leg shield 2, The three brake levers 52 to 54 operate the first brake 5 when the first brake operator 12 is gripped, and operate the first and second brakes 5 and 9 when the second brake operator 14 is depressed. Both work in tandem.

The first rotating lever 5 of the brake unit 22
2 is pivotally supported at one end to the support shaft 51, and is disposed on the right side of the support shaft 51. At the tip of the first rotation lever 52, the traction-side linking means 20 for the independent system brake is provided. Bracket 50
Through the guide wall 50a. An engaging piece 52a is provided on the lower side of the intermediate portion of the first rotating lever 52 so as to protrude in a direction opposite to the bracket, and a return spring 55 having a downward pulling force is engaged with the engaging piece 52a.
The first rotating lever 52 is constantly urged in a non-operating direction (clockwise direction with the support shaft 51 as a rotation fulcrum in FIG. 1) by the pulling force of the return spring 55.

The second rotating lever 5 of the brake unit 22
Reference numeral 3 designates an intermediate portion pivotally supported by the support shaft 51 and is disposed astride both left and right sides of the support shaft 51. Are protruded in the bracket direction. The right side piece of the second rotation lever 53 is formed to have a length protruding outside of the engagement piece 52a of the first rotation lever 52, and the driven end linking means 21 for the independent brake is provided at the tip thereof. The second rotation lever 53 is connected from below through the guide wall 50b of the bracket 50, and the second rotating lever 53 is always in the non-operating direction (in FIG. 1) by the independent brake driven side connecting means 21 pulled by the lever return spring 46. Clockwise with the support shaft 51 as a rotation fulcrum).

Third rotating lever 5 of brake unit 22
4 has a first pivot lever 52 pivotally supported at one end by a support shaft 51.
The wire cable 30 of the interlocking brake driven side linking means 23 is provided at the tip of the third pivoting lever 54 with the bracket 50.
Through the guide wall 50c. A return spring 56 having an upward pulling force is engaged with an upper portion on the distal end side of the third rotation lever 54.
4 is constantly urged in a non-operating direction (in FIG. 1, clockwise with the support shaft 51 as a rotation fulcrum) by the pulling force of the return spring 56.

The engagement piece 52a of the first rotation lever 52 is located below the second rotation lever 53 and the second rotation lever 5
The third engagement piece 53a is located below the third rotation lever 54, and in the non-operation state shown in FIG. Rotating lever 5
3 is engaged with the lower right side, and the engaging piece 53a of the second rotating lever 53 is engaged with the lower side of the third rotating lever 54.

As a result, when the first rotating lever 52 rotates in the operating direction (counterclockwise in FIG. 1) about the support shaft 51 as a fulcrum against the pulling force of the return spring 55, the second rotating lever 5
3 rotates in the same direction about the support shaft 51 as a fulcrum, and pulls the independent-side brake-side linking means 21 in the same direction, and the third pivoting lever 54 pushes the support shaft against the pulling force of the return spring 56. When the lever 51 is pivoted in the operating direction (counterclockwise direction in FIG. 1) about the fulcrum, the second pivot lever 53 rotates in the same direction and pulls the independent brake driven side linking means 21. I have.

Next, the operation of the thus constructed embodiment will be described. When the motorcycle 1 does not operate the first brake operator 12 of the independent brake system 16 and the second brake operator 14 of the interlocking brake system 17 when the motorcycle 1 is running or stopped, the brake device 15 does not operate as shown in FIG. In state.

When the first brake operator 12 of the independent brake system 16 is gripped and operated while the motorcycle 1 is traveling, the traction side connecting means 20 for the independent brake is towed, and the brake connected to the connecting means 20 is pulled. Unit 22
Is rotated in the operating direction (counterclockwise in FIG. 1) around the support shaft 51, and the second rotating lever 52 engages with the engagement piece 52 a of the first rotating lever 52. 53, while the third rotating lever 54 is left in the inoperative position in FIG.
It rotates together with the first rotating lever 52 in the same direction (FIG. 3).

Next, the second rotation lever 53 pulls the independent brake-side linking means 21, and the operation lever 44 of the first brake 5 rotates integrally with the camshaft 42, and both brakes The shoes 41, 41 expand around the anchor 43, and the linings 41a,
41a comes into sliding contact with the inner peripheral surface of the brake drum, and braking of the front wheels 4 is performed.

On the other hand, when the second brake operating element 14 of the interlocking brake system 17 is depressed, the interlocking brake operating means 24 is towed, and the operating lever 44 of the second brake 9 connected to the interlocking means 24 is cam-operated. Rotating integrally with the shaft 42, the brake shoes 41, 41 expand around the anchor 43, and the linings 41 a, 41 a of the brake shoes 41, 41 slidably contact the inner peripheral surface of the brake drum.

The back panel 40 of the second brake 9 is driven by the drag torque generated on the brake shoes 41, 41 by sliding contact with the brake drum, in the direction of the arrow A (clockwise in FIG. 1) which is the direction of rotation of the brake drum. Floating around helia axle 48, driven side linking means 2 for interlocking brake
3 is pulled in the floating direction of the back panel 40, the torque lever 26 is turned around the support shaft 25 in the operating direction (clockwise in FIG. 1), and the wire cable 30 is further pulled (FIG. 6). ).

The third rotating lever 5 of the brake unit 22
4 rotates in the operating direction (counterclockwise direction in FIG. 1) around the support shaft 51 by receiving the traction force from the wire cable 30, and engages with the third rotating lever 54 by the engaging piece 53a. The second rotation lever 53 rotates together with the third rotation lever 54 in the same direction around the support shaft 51 while leaving the first rotation lever 52 at the non-operation position in FIG. The lever 53 pulls the independent brake driven side linking means 21 to brake the front wheel 4 by the first brake 5 and to control the braking by the first brake system 1 described above.
6 is performed in the same manner.

The second floating in the rotation direction of the brake drum
The back panel 40 of the brake 9 includes the traction resistance of the driven linkage 23 for the interlocking brake and the traction resistance of the driven linkage 21 for the independent brake, the first brake 5 and the brake unit 2.
At the stage where the floating of the back panel 40 is stopped due to the increase in the resistance, the second brake 9
Braking of the rear wheel 8 is performed.

Floating of the back panel 40 of the second brake 9 and the driven side linking means 2 for the interlocking brake by this floating.
As described above, the traction of No. 3 is performed at the maximum until the torque lever 26 of the driven side linking means 23 for the interlocking brake and the support shafts 25, 27, 28 of the torque rod 29 are positioned on the straight line L1 (FIG. 6). When the support shafts 25, 27, and 28 are located on a straight line, the back panel 40 stops floating and the traction of the interlocking brake driven side linking means 23 is restricted, and the operating force of the first brake 5 is reduced. The rise is cut.

When both the first brake operator 12 and the second brake operator 14 are operated, the independent brake system 16 and the interlocking brake system 17 operate.
The front wheel 4 and the rear wheel 8 are braked by the first and second brakes 5 and 9 as described above. In the first brake 5, the second rotation lever 53 of the brake unit 22 is connected to the first rotation lever 52 By applying the turning power with the third rotating lever 54, a large braking force is generated by adding the operating forces of the first brake operator 12 and the second brake operator 14.

As described above, the brake device 15 of this embodiment is
Are independent braking system 16 and interlocking braking system 17
Are operated through the brake unit 22 using a lever mechanism including the first to third rotating levers 52 to 54, and therefore, the first to third rotating levers 52 to 54 are operated.
By simply changing the lever ratio, the input load of the first and second brake operating members 12 and 14 can be increased or decreased.
The input load can be increased or decreased by changing the lever ratio of the torque lever 26 used in the interlocking brake driven side linking means 23.

As a result, the distribution of the braking force between the first brake 5 and the second brake 9 is changed, and the vehicle conditions set for the motorcycle 1 are set to the first brake 5 and the second brake 9 respectively. A more preferable braking force suitable for performance and intended use can be set simply and widely. Furthermore, the basic settings of the first and second brakes 5 and 9 do not need to be changed at all, and further, it is not necessary to change the model to another brake or to newly design and manufacture, so that it is possible to greatly reduce the cost. Become.

When one of the first brake operator 12 and the second brake operator 14 is operated first and then the other is operated, the first operation of the brake unit 22 is performed in the initial stage of the additional operation. Until the rotation lever 52 or the third rotation lever 54 follows the second rotation lever 53 and comes into contact with the second rotation lever 53, the wire cable tension of the previous operation does not act on the additional operation. Therefore, in the initial stage of the additional operation, it is possible to operate with a small force as in the case of a normal separation type brake, and it is possible to maintain a good operation feeling.

Further, in this embodiment, even if the additional operating force is slight, the additional operating force is added to the second rotating lever 53 of the brake unit 22 as it is. Can be increased.

Further, the driven side connecting means 2 for the interlocking system brake
3, the support shafts 25, 27, and 28 are positioned on the straight line L1 by using the torque lever 26, the torque rod 29, and the wire cable 30, so that the interlocking brake can be used without using a special stopper member. Driven side linking means 23
The excessive traction of the first brake 5 can be cut to suppress the generation of an excessive braking force of the first brake 5. Further, the wire cable 30 of the driven side connecting means 23 for the interlocking brake is used.
When any failure occurs between the first brake 5 and the second brake 5, the shaft 2
5, 27, 28 are located on the straight line L1 and stop the floating of the back panel 40 of the second brake 9, so that the failure on the first brake 5 side does not affect the second brake 9 side, The second brake 9 can be operated reliably.

Further, the brake unit 22 is disposed in the leg shield 2 having a height between the first brake operator 12 and the first and second brakes 5 and 9 so as to be connected on the traction side for the independent brake. The means 20 is connected to the first turning lever 52 from above, the driven side linking means 21 for the independent brake is connected to the second turning lever 53 from below, and the wire cable of the driven side connecting means 23 for the linked brake is connected. 30 is connected to the third rotating lever 54 from below.
0, 21 and 23 can be easily routed with the shortest length without waste, and the routing operation can be simplified.

Next, second and third embodiments of the present invention will be described. Note that the same components as those of the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted. FIGS. 7 and 8 show a modification of the first embodiment. The driven side linking means 60 for an interlocking brake includes an intermediate portion provided on a back panel 40 of the second brake 9 by a support shaft 61. , A torque rod 65 pivotally supported at one end to the swing arm 7 by a support shaft 63, the other end connected to one end of the torque lever 62 by a support shaft 64, A wire cable 30 is connected to the other end of the torque lever 62 via a support shaft 66, and the other end is connected to the third rotation lever 54 of the brake unit 22.

The above-mentioned interlocking means 60 for the interlocking brake.
Is operated by the stepping operation of the second brake operating member 14.
When the back panel 40 of the brake 9 floats in the direction of arrow A, the support shaft 61, which is the rotation fulcrum of the torque lever 62, rotates in the same direction, and the torque rod 65 pivots on the support shaft 63 in FIG.
7, the torque lever 62 connected to the torque rod 65 and the support shaft 64 rotates clockwise in FIG. 7 about the support shaft 61 as a fulcrum. 7, the first brake 5 is operated through the brake unit 22.

The floating of the back panel 40 of the second brake 9 and the towing operation of the driven side linking means 23 for the interlocking brake accompanying the floating are performed at the maximum by the torque lever 62 as in the first embodiment. And the support shafts 61 and 6 of the torque rod 65
3 and 64 are located on the straight line L1.
When the back panel 40 is stopped and the traction of the interlocking brake driven side linking means 23 is restricted in a state where 1, 63, 64 are located on a straight line (FIG. 8), and the first brake 5 stops operating. In addition, the floating of the back panel 40 of the second brake 9 is stopped, and fail-safe operation of operating the second brake 9 can be performed.

The brake device 70 for a bar handle vehicle according to the third embodiment shown in FIGS. 9 to 12 employs hydraulic disc brakes for the first brake 71 and the second brake 72, respectively. , A combination of a lever mechanism and a hydraulic pressure generating device, and the first brake 71 and the brake unit 73 are connected to the independent brake hydraulic pressure pipe 7.
4 in that the second brake 72 and the second brake operator 14 are connected by an interlocking brake operating means 75 using a hydraulic pipe.

The first brake 71 and the second brake 72
Caliper bodies 76 and 77 and disk rotors 78 and 79
The caliper body 76 of the first brake 71 is fixed to the lower end of the front fork 3 while the caliper body 77 of the second brake 72 is fixed.
Are rotatably supported around a rear axle 48. The second brake operating element 14 is provided with a hydraulic master cylinder 80 for an interlocking brake that is installed vertically, and the hydraulic master cylinder 80 and the caliper body 77 of the second brake 72 use hydraulic piping. The interlocking brake operating means 75 described above is connected.

The torque rod 29 of the interlocking brake driven side linking means 23 is connected to the torque lever 26 and the caliper body 77 of the second brake 72 by using the support shafts 27, 28, and the second brake operator 14, the caliper body 77 of the second brake 72 moves to the direction indicated by the arrow A.
When floating in the direction, the torque rod 29 rotates the torque lever 26 clockwise in FIG. 9 around the support shaft 25, and pulls the wire cable 30 connected to the torque lever 26 to the left in FIG.

The brake unit 73 uses three levers, namely, first to third rotary levers 52, 53, and 54, as a lever mechanism. As a hydraulic pressure generating device, a hydraulic device in which a piston 82 is inserted into a cylinder body 81 is used. The pressure master cylinder 83 is used. A return spring 84 is contracted between the guide wall 50a of the bracket 50 and the first rotation lever 52,
The first rotation lever 52 is constantly urged in a non-operating direction (clockwise with the support shaft 51 of FIG. 9 as a rotation fulcrum) by the elastic force of the return spring 84.

The second rotating lever 53 is configured such that the intermediate portion
The engaging piece 53a is provided so as to straddle the left and right sides of the support shaft 51, an engaging piece 53a is projected below the left end of the left end, and a working piece 53b for generating hydraulic pressure is provided at an intermediate part. It is hanging. The cylinder body 81 of the hydraulic master cylinder 83 is attached to the bracket 50, a hydraulic pipe 74 for independent brake is connected to one end of the cylinder body 81, and a tip of a piston 82 protruding from the other end of the cylinder body 81. The action piece 53b of the second rotating lever 53 is exposed.

The brake device 70 of this embodiment configured as described above, when the motorcycle 1 is running, when the first brake operator 12 of the independent brake system 16 is gripped and operated.
The traction side linking means 20 for the independent brake is towed, and the first turning lever 52 and the second turning lever 53 of the brake unit 73 connected to the linking means 20 move in the direction of operation around the support shaft 51 (FIG. 10). Counterclockwise), the action piece 53b of the second rotating lever 53 pushes the piston 82 of the hydraulic master cylinder 83 into the cylinder body 81 to generate hydraulic pressure inside the cylinder body 81. The hydraulic pressure generated in the cylinder body 81 is passed through the hydraulic brake pipe 74 for the independent brake to the caliper body 76 of the first brake 71.
And the first brake 71 is hydraulically actuated to brake the front wheels.

When the second brake operator 14 of the interlocking brake system 17 is depressed, the hydraulic pressure generated in the interlocking brake hydraulic pressure master cylinder 80 is passed through the interlocking brake operation means 75 to the second brake 72. The caliper body 77 floats around the rear axle 48 in the direction of the arrow A (clockwise in FIG. 11), which is the direction of rotation of the disk rotor 79.

As a result, the caliper body 77 pulls the interlocking brake driven side linking means 23, and the third turning lever 54 of the brake unit 73 is moved to the second turning lever 5.
3 and is rotated in the operation direction (counterclockwise direction in FIG. 10) around the support shaft 51, and the action piece 53b of the second rotation lever 53 is
The piston 82 of the hydraulic master cylinder 83 is pushed into the cylinder body 81 to generate a hydraulic pressure inside the cylinder body 81, and as in the case of the independent brake system 16,
The first brake 71 is hydraulically actuated to brake the front wheels.

The caliper body 77 of the second brake 72 floating in the direction of rotation of the disk rotor 79 has the traction resistance of the interlocking brake driven side linking means 23 and the hydraulic resistance of the independent brake hydraulic pressure pipe 74. The actuation resistance of the first brake 71 and the brake unit 73 acts, and when the caliper body 77 stops floating due to the increase in these resistances, the rear wheel is braked by the hydraulic operation of the second brake 72.

The floating of the caliper body 77 of the second brake 72 and the pulling of the driven side linking means 23 for the interlocking brake due to the floating are performed at the maximum by the torque lever 26 and the torque rod 29 of the driven side linking means 23 for the interlocking brake. Until the support shafts 25, 27, 28 are located on a straight line, in a state where these support shafts 25, 27, 28 are located on a straight line,
When the caliper body 77 stops, the traction of the interlocking brake driven side linking means 23 is restricted, and the increase in the operating force of the first brake 71 is cut.

When both the first brake operator 12 and the second brake operator 14 are operated, the independent brake system 16 and the interlocking brake system 17 operate.
The front and rear wheels are braked by the first and second brakes 71 and 72. In the first brake 71, the second rotation lever 53 of the brake unit 73 is provided with a first rotation lever 52 and a third rotation lever. By applying the turning power of 54, a large braking force is generated by adding the operating forces of the first brake operator 12 and the second brake operator 14.

As described above, the brake device 70 of the present embodiment is
Are the first to second brake units 73 while using hydraulic disc brakes for the first and second brakes 71 and 72.
The same operations and effects as those of the first embodiment are achieved, such as changing the lever ratio of the third rotating levers 52 to 54 to easily increase or decrease the input load of the first and second brake operators 12, 14. be able to.

In the embodiment described above, the front wheel brake is applied to the first brake and the rear wheel brake is applied to the second brake. However, the present invention can also reverse the setting. Further, the first and second brakes may be any of a mechanical type and a hydraulic type drum brake and a disc brake, and either the brake lever or the brake pedal may be used for the first and second brake operators. it can. Further, as components of the linking means used in the present invention, there are a wire cable, a rod, a lever, a chain, and the like, and these can be used alone or in an appropriate combination.

[0062]

As described above, according to the first or second aspect of the present invention, the independent brake system that operates only the first brake and the first and second brakes operate in conjunction with each other. While having an interlocking brake system,
The input load of the first and second brake operators can be increased or decreased only by changing the lever ratio of the rotation lever of the brake unit, and the distribution of the braking force between the first brake and the second brake can be changed. In addition, it is possible to easily and broadly set a more preferable braking force for each of the first brake and the second brake in accordance with the vehicle body conditions and performance of the bar handle vehicle and the purpose of use. In addition, there is no need to change the basic settings of the first and second brakes, and further, it is not necessary to change the model to another brake or to newly design and manufacture.
The cost can be significantly reduced.

If one of the first and second brake operators is operated first and then the other is operated, the load of the previous operation does not act on the additional operation in the initial stage of the additional operation. As in the case of a normal separation type brake, an additional initial operation can be performed with a small force with a small load, and a good operation feeling can be maintained. Further, even if the additional operating force is slight, the additional operating force is directly added to the first brake through the brake unit, so that the operating force of the first brake can be increased with a small additional operating force.

According to the third or fourth aspect of the present invention, an independent brake system that operates only the first brake and an interlock system brake system that operates both the first and second brakes in conjunction are provided. By simply changing the lever ratio of the rotation lever of the brake unit or the torque lever of the interlocking brake driven side linking means, the input load of the first and second brake operators can be increased and decreased. Not only the braking force distribution between the brake and the second brake is changed, but also a more preferable braking force suitable for the body condition and performance of the bar handle vehicle and the purpose of use is applied to each of the first brake and the second brake in a simple and convenient manner. Can be set widely.

Also, without using a special stopper member,
Excessive traction of the interlocking brake driven side linking means can be cut to suppress the generation of excessive braking force of the first brake, and furthermore, some failure occurs on the first brake side. Even when one brake stops operating, it is possible to reliably operate the second brake without affecting the second brake. According to the fifth aspect of the present invention, various connecting means connected to the brake unit can be easily arranged without wasting with the shortest length, and furthermore, the wiring operation can be simplified.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a non-operating state of a brake device for a bar handle vehicle according to a first embodiment of the present invention.

FIG. 2 is a side view of a motorcycle showing a first embodiment of the present invention.

FIG. 3 is a front view of the brake unit when the independent brake system according to the first embodiment of the present invention is operated.

FIG. 4 is a front view of the brake unit when the interlocking brake system according to the first embodiment of the present invention is operated.

FIG. 5 is a front view of the brake unit according to the first embodiment of the present invention when both the independent brake system and the interlock brake system are operated.

FIG. 6 is a front view showing the periphery of a second brake of a driven side linking means for an interlocking brake showing a first embodiment of the present invention;

FIG. 7 is a front view around the second brake in a non-operating state of the interlocking brake driven side linking means according to the second embodiment of the present invention.

FIG. 8 is a front view of the vicinity of a second brake showing an operation state of an interlocking brake driven side linking means according to a second embodiment of the present invention.

FIG. 9 is a schematic diagram showing a third embodiment of the present invention in a non-operating state of a brake device for a bar handle vehicle.

FIG. 10 is a front view of a brake unit when an independent brake system according to a third embodiment of the present invention is operated.

FIG. 11 is a front view of a brake unit when an interlocking brake system according to a third embodiment of the present invention is operated.

FIG. 12 is a front view of a brake unit according to a third embodiment of the present invention when both the independent brake system and the interlocking brake system are operated.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Motorcycle 2 ... Leg shield 3 ... Front fork 4 ... Front wheel 5 ... 1st brake (front wheel brake) 7 ... Swing arm 8 ... Rear wheel 9 ... 2nd brake (rear wheel brake) 10 ... Handlebar 12 ... 1st Brake operator (brake lever) 14 ... Second brake operator (brake pedal) 15 ... Brake device for bar handle vehicle 16 ... Independent system brake system 17 ... Interlocking system brake system 20 ... Truck side connecting means for independent system brake 21 ... Driven side linking means for independent brake 22 ... Brake unit 23 ... Driven side linking means for interlocking brake 24 ... Interlocking brake operating means 25, 27, 28 ... Support shaft 26 ... Torque lever 29 Torque rod 30 ... Wire cable 40 ... back panel 41 ... brake shoe 44 ... operating lever 48 ... rear axle 50 Bracket 50a, 50b, 50c Guide wall 51 Support shaft 52 First rotating lever 53 Second rotating lever 52a, 53a Engaging piece 54 Third rotating lever 55, 56 Return spring 60 Interlocking Drive side linking means for system brake 61, 63, 64, 66 Support shaft 62 Torque lever 65 Torque rod 70 Brake device for bar handle vehicle 71 ... First brake 72 ... Second brake 73 ... Brake unit 74 ... Independent Hydraulic piping for system brakes 75 Operating means for interlocking brakes 76, 77 Caliper bodies 78, 79 Disk rotor 80, 83 Hydraulic master cylinder 81 Cylinder body 82 Piston 84 Return spring

Claims (5)

[Claims] 1. A mechanical type in which one of a front wheel brake and a rear wheel brake disposed on the front and rear portions of a vehicle body is operated by one or both of a first brake operator and a second brake operator. A brake device for a bar-handle vehicle in which a first brake is used and a second brake is used as a second brake operated by a second brake operator. A panel-floating drum brake that floats in the rotational direction, or a caliper-floating disc brake in which the caliper body during braking floats in the rotational direction of the disc rotor, wherein the second brake and the second brake operator are wired The first, second, and third rotating levers are connected to the vehicle body by operating means for an interlocking brake such as a cable, a rod, and a hydraulic pipe. A brake unit is provided to be rotatable around the support shaft, and the first brake operator and the first rotary lever are connected to a traction-side linking means for an independent brake such as a wire cable or a rod. And the first brake and the second rotating lever are connected by a single-brake driven-side linking means such as a wire cable or a rod. The first lever is connected to the moving lever by a follower-side connecting means for an interlocking brake such as a wire cable or a rod.
When the first turning lever is turned in the operating direction by the operation of the first brake operation member, the second turning lever is used for the independent brake for operating the turning lever and the second turning lever. The driven side linking means is engaged so as to rotate in the pulling direction, and the third rotating lever is operated by operating the second rotating lever and the third rotating lever by operating the second brake operating element. A bar handle vehicle brake device, characterized in that, when turned in the direction, the second turning lever is engaged so as to co-rotate in a direction of pulling the independent brake driven side linking means. 2. A hydraulic hydraulic system in which one of a front wheel brake and a rear wheel brake disposed on the front and rear portions of a vehicle body is operated by one or both of a first brake operator and a second brake operator. A brake device for a bar-handle vehicle in which a first brake is used and a second brake is used as a second brake operated by a second brake operator. A panel-floating drum brake that floats in the rotational direction, or a caliper-floating disc brake in which the caliper body during braking floats in the rotational direction of the disc rotor, wherein the second brake and the second brake operator are wired The first and second pivoting levers, the second and third pivoting levers are connected to the vehicle body by operating means for interlocking brakes such as cables, rods, and hydraulic piping. A pressure master cylinder, wherein the first, second, and third rotating levers are
A brake unit is provided so as to be rotatable around the support shaft, and the first brake operator and the first rotary lever are connected by a traction-side linking means for an independent brake such as a wire cable or a rod. And the first brake and the hydraulic master cylinder are connected by an independent brake hydraulic pipe, and the second pivot lever is disposed so as to hydraulically operate the hydraulic master cylinder. A back panel or caliper body of the second brake and a third rotating lever are connected to each other by an interlocking brake driven side linking means such as a wire cable or a rod, and the first rotating lever and the second rotating lever are connected. And a second lever that co-rotates in the pressure increasing direction of the hydraulic master cylinder when the first rotating lever is rotated in the operating direction by the operation of the first brake operator. Combine, before And said second pivot lever third pivoting lever, by the operation of the second brake operation element, a third
A bar handle vehicle brake device, wherein when the rotation lever is rotated in the operation direction, the second rotation lever is engaged so as to rotate together with the hydraulic master cylinder in the pressure increasing direction. 3. A torque lever whose one end is pivotally supported on the vehicle body by a support shaft, and a torque lever and a back panel or a caliper body of the second brake are respectively provided to the interlocking brake driven side linking means. A torque rod connected using a support shaft and a wire cable also connected to a torque lever and a third rotating lever of the brake unit are provided, and the back panel and the caliper body are connected to a brake drum or a disk rotor. When floating in the rotational direction, the support shaft serving as the fulcrum of rotation of the torque lever and the two support shafts connecting the torque rod to the torque lever and the back panel or the caliper body of the second brake are on the same straight line. 3. The device according to claim 1 or 2, wherein a position of the pulley is controlled to restrict a pulling amount of the wire cable of the driven side linking means for the interlocking brake. Brake system for bar handle vehicles. 4. A torque lever having an intermediate portion pivotally supported on a back panel or a caliper body of the second brake by a support shaft, and an end of the torque lever and the vehicle body. And a wire cable connected to the other end of the torque lever and the third rotating lever of the brake unit, respectively, so that the back panel and the caliper body are connected to each other. When the brake drum or the disc rotor floats in the rotation direction, the support shaft serving as the rotation fulcrum of the torque lever and the two support shafts connecting the torque rod to the torque lever and the vehicle body are located on the same straight line. The bar handle vehicle shake according to claim 1 or 2, wherein the amount of pulling of the wire cable of the driven side linking means for the interlocking system brake is regulated. Device. 5. The brake unit is disposed at a height between the first brake operator and the first brake and the second brake, and the traction-side linking means for an independent brake is provided in the first brake operation. And a hydraulic pressure pipe connected to the second pivoting lever from below, and the driven linking means for the interlocking brake is connected to the third pivoting lever. The brake device for a bar handle vehicle according to any one of claims 1 to 4, wherein the brake device is connected to the vehicle from below.