JP2002160691A - Brake device for bar handle vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a brake device in combination of an individual brake system with an interlocking brake system, whereby the number of component parts is decreased and the weight is reduced. SOLUTION: A piston rod 43 of a pull type hydraulic cylinder 40 and a tying means 24 for the individual brake are connected with a first slider 60. The part of the tying means 24 located on the side where slider connection takes place, the piston rod 43, and the first slider 60 are arranged on the axial line L1. A second slider 80 is installed outside the first slider 60, and the two sliders 60 and 80 are connected with each other using a long hole 60a and a slide pin 61 in such a way as slidable. An equalizer 70 is interposed between a traction side tying means 26a and a follower side tying means 26b of a tying means 26 for the interlocking the brake, and a wire end 26c of the traction side tying means 26a is connected with the middle part of the equalizer 70, and a wire end 26d of the follower side tying means 26b is connected with one end of the equalizer 70, while the slide pin 61 is pivoted at the other end of the equalizer 70.

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 buggy vehicles. In the operation of one of the brake operators, a single brake system that operates either the front wheel brake or the rear wheel brake independently,
The operation of the other brake operator relates to a bar-handle vehicle brake device having an interlocking brake system that operates both the front wheel brake and the rear wheel brake in conjunction.

[0002]

2. Description of the Related Art As a brake device for a bar-handle vehicle in which a single brake system and an interlocking brake system are combined, for example, there is one disclosed in Japanese Patent Laid-Open No. 11-91673. In this technology, the front wheel brake is used as a disc brake that operates by hydraulic pressure from the hydraulic master cylinder, and the rear wheel brake is used as a mechanical drum brake that operates by pulling an interlocking brake wire. In the vicinity of the opening of the cylinder hole, a rotation lever for pressing the piston inside the cylinder hole is arranged, and the rotation lever and the right brake lever are connected by a single brake wire, and the grip operation of the right brake lever is performed. In addition, the sole brake system operates only the front wheel disc brake alone.

An interlocking brake wire for a drum brake is divided into a traction brake wire connected to a left brake lever and a first driven brake wire connected to a drum brake, and an equalizer is interposed between the brake wires. Connecting a traction wire to an intermediate portion of the equalizer, connecting a first driven brake wire to one end of the equalizer, and connecting the other end of the equalizer to the rotating lever with a second driven brake wire, When the left brake lever is depressed, an interlocking brake system is used in which both the front wheel disc brake and the rear wheel drum brake operate.

[0004]

However, in the above-mentioned brake device, a second driven brake wire is required between the equalizer and the turning lever, and the turning lever is provided with a single brake wire and an interlocking brake wire. In order to connect the two driven brake wires, three connecting levers must be used, and an increase in the number of parts and weight is inevitable.

When a rotary lever is used to press the piston of the hydraulic master cylinder, the input point and the output point of the rotary lever are constantly displaced around the support shaft of the rotary lever. Since the operating force is dispersed as a component force and a loss is caused in the pressing force against the piston, it is necessary to use a grade one size larger in the hydraulic master cylinder in consideration of the loss of the operating force.

Further, when the left brake lever of the interlocking brake system is rapidly operated with a large operating force,
Since a large braking force is instantaneously applied to both the rear wheels, there is a possibility that the front wheel brake may be locked early due to a sudden movement of the vehicle load toward the front of the vehicle.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to reduce the number of parts and reduce the weight while providing a brake device combining a single brake system and an interlocking brake system. In the case of a stand-alone brake system, the transmission efficiency of the operating force is increased, and even if the operating force is small, the predetermined braking force required for the hydraulic brake can be sufficiently exhibited. In addition, in the interlocking brake system, the front and rear wheels are provided with a suitable braking force so that the front wheel brake is not likely to be locked early, and even when the independent brake system fails, the mechanical brake is used. It is an object of the present invention to provide a disk brake device for a bar handle vehicle that can secure a braking force.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a brake system for a single-wheel brake system in which one of a front wheel brake and a rear wheel brake of a bar handle vehicle is operated by operating a first brake operating member. A hydraulic brake that is operated by the hydraulic pressure generated in the hydraulic master cylinder by pulling the linking means, and a mechanical brake that is operated by pulling the linking means for the interlocking brake by operating the second brake operator on the other side The hydraulic master cylinder is of a tension type that generates a hydraulic pressure by pulling a piston inserted into the cylinder hole toward the opening of the cylinder hole, and protrudes outside the cylinder hole continuously with the piston. A slider is interposed between the piston rod and the independent brake linking means, and an elongated hole in the sliding direction is formed in the slider. The traction-side linking means connected to the brake operator, and the driven-side linking means connected to the mechanical brake are divided, and an equalizer is interposed between the traction-side linking means and the driven-side linking means. The traction-side linking means was connected to the middle part of the equalizer, the driven-side linking means was connected to one end of the equalizer, and the other end of the equalizer and the slider were connected by slide pins inserted into the long holes. It is characterized by:

It is preferable that at least the slider connecting side of the independent brake connecting means, the slider and the piston rod are arranged in a straight line. At the other end of the equalizer, there may be provided a restricting means interlocking with the slide pin and restricting movement of the piston rod in the towing direction by operation of the interlocking brake connecting means. It is also possible to use a hydraulic brake as a front wheel brake and provide a delay means for delaying the start of the operation of the restricting means as compared with the mechanical brake.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a scooter type motorcycle will be described below with reference to the drawings.
1 is a schematic view showing a non-operating state of a brake device for a bar handle vehicle, FIG. 2 is a front view of a scooter type motorcycle equipped with the brake device of FIG. 1, and FIG. 3 is a master cylinder used for the brake device. FIG. 4 is a sectional front view showing the non-operating state of the unit, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, FIG. 5 is a sectional front view of the master cylinder unit when only the independent brake system is operated, and FIG. 7 is a sectional front view of the master cylinder unit when only the system brake system is operated, FIG. 7 is a sectional view taken along line VII-VII of FIG. 6, and FIG. 8 is a master cylinder when both the independent brake system and the interlocking brake system are operated. It is sectional front view of a unit.

The brake device 2 of the motorcycle 1 has a first brake operator 4 and a second brake operator 5 attached to a handlebar 3 and a master disposed in a leg shield 6 covering a front portion of the vehicle body. A hydraulic brake 10 is provided at the lower end of a front fork 8 which is steered by a handlebar 3 at one end of a front wheel 9. A mechanical brake 12 is provided as a rear wheel brake disposed in a rear wheel (neither is shown) or on one side of the rear wheel.

The first brake operating member 4 is provided on the handlebar 3.
The right brake lever and the second brake operator 5 disposed in front of the accelerator grip 20 attached to the right end of the
Fixed grip 21 attached to the left end of handlebar 3
The brake device 2 is a single brake system 22 that independently operates the hydraulic brake 10 by the gripping operation of the first brake operator 4.
And an interlocking brake system 23 that operates by interlocking the hydraulic brake 10 and the mechanical brake 12 by the gripping operation of the second brake operator 5.

The independent brake system 22 includes a first brake operator 4, a hydraulic brake 10, a master cylinder unit 7, an independent brake connecting means 24, and a hydraulic pipe 25.
The interlocking brake system 23 includes a second brake operator 5, the hydraulic brake 10, the mechanical brake 12, the interlocking brake linking means 26, and the master cylinder unit also serving as the independent brake system 22. 7.

The hydraulic brake 10 includes a hydraulic disc brake in which a disc rotor 30 and a caliper body 31 are combined, and the mechanical brake 12 includes a pair of brake shoes 33,
Leading & trailing type mechanical drum brakes, which open the opening 33 at an anchor pin 34 as a fulcrum, are applied respectively. The connecting means 24 for the independent brake and the connecting means 26 for the interlocking brake are respectively provided with a wire cable. Is used.

The master cylinder unit 7 includes a hydraulic master cylinder 40 for supplying hydraulic pressure to the hydraulic brake 10,
It comprises a first slider 60, an equalizer 70, a second slider 80, and a return spring 90 which are combined in a unit case 7a connected to the hydraulic master cylinder 40. The first slider 60 and the return spring 90 correspond to the slider and the delay means of the present invention, respectively. The second slider 80 and stopper pieces 80a, 80a, which will be described later, and guide holes 7b, 7b of the unit case 7a of the present invention are used. It constitutes a regulation means.

The first slider 60 is an independent brake system 2
2, the input load transmitted from the first brake operator 4 to the first slider 60 is further transmitted to the piston rod 43 of the hydraulic master cylinder 40 to operate the hydraulic brake 10 independently. Further, the equalizer 70 and the second slider 80 are used in the interlocking brake system 23, and the input load from the second brake operator 5 is applied to the hydraulic pressure of the hydraulic master cylinder 40 by the equalizer 70 as output distribution means. The hydraulic brake is distributed to the operating force of the mechanical brake 12 to operate the mechanical brake 12 and to operate the hydraulic brake 10 via the second slider 80.

In the independent brake system 22, the independent brake connecting means 24 connected to the first brake operator 4 is provided.
Are connected to the first slider 60, and the hydraulic master cylinder 40 connected to the hydraulic brake 10 and the hydraulic pipe 25 is connected to the first slider 60. In the interlocking brake system 23, the interlocking brake linking means 26 is connected to the traction-side linking means 26 a connected to the second brake operator 5.
Driven side connecting means 26 connected to the mechanical brake 12
b, and the above-described equalizer 70 is interposed between the traction-side linking means 26a and the driven-side linking means 26b.

Hydraulic master cylinder 4 for hydraulic brake
0, a bottomed cylinder hole 42 is provided in a vertical cylindrical cylinder body 41 with its upper end opened.
Piston 43a integral with piston rod 43 at the bottom of
And the hydraulic chamber 4 is pulled by pulling the piston rod 43.
A pull-type master cylinder for increasing the pressure of the hydraulic fluid in 4 is employed. An output port 45 is provided on one side wall of the cylinder body 41, and a relief port 46 and a supply port 47 are provided on the other side wall so as to communicate with the cylinder hole 42, respectively. The liquid pressure pipe 25 is connected, and a liquid passage pipe 49 connected to a separate reservoir 48 is connected to the boss 41a at the lower end where the relief port 46 and the supply port 47 are opened.

At a position above the output port 45 of the cylinder hole 42, a cylindrical end plug 50 is fixed in a liquid-tight manner, and a piston rod 43 is slidably inserted into the end plug 50. The hydraulic chamber 44 is defined between the end plug 50 and the piston 43a. A coil-shaped return spring 51 is contracted in the hydraulic pressure chamber 44, and the return spring 51 urges the piston rod 43 toward the bottom of the cylinder hole 42 to disconnect the piston 43a and the upper piston cup 43b. It is located between the relief port 46 and the supply port 47 which are operating positions (FIGS. 1, 3, and 4). When the piston 43a is in this inoperative position, the relief port 46 is
4, the hydraulic chamber 44 and the relief port 46
Through the reservoir 48 to a hydraulic chamber (not shown) inside the caliper body 31.

The first slider 60 has a double plate structure in which an intermediate portion between a pair of parallel side plates is widened widely, and first elongated holes 60a, 60a are formed at an intermediate portion and an upper end portion of both side plates. Second long holes 60b, 60b are formed in the length direction, and round holes 60c, 60c are formed at lower ends of both side plates. The first elongated holes 60a, 60a at the intermediate portion are
The guide pins 61 are loosely inserted into the first long holes 60a, 60b, and the linking means 24 for the independent brake is inserted into the second long holes 60b, 60b at the upper end. The wire end 24a is loosely inserted, and the upper end of the piston rod 43 is pivotally attached to the rotating pin 62 inserted through the round holes 60c.

Three sets of holes 60a, 60 of the first slider 60
a, 60b, 60b, 60c, and 60c are disposed on the axis L1, which is the central axis of the first slider 60, and further, the independent brake linking means 24, the first slider 60, and the piston rod 43 in the unit case 7a. Is the axis L
1 and the linking means 24 for the independent system brake.
, The first slider 60 and the piston rod 43 are aligned with the axis L
1 is slid vertically in a straight line in the length range of the first elongated holes 60a, 60a.

The equalizer 70 is a rotary lever formed of a band plate, and the wire end 26c of the traction side connecting means 26a drawn into the unit case 7a is connected to the equalizer 7
0, a wire end 26d of the driven side linking means 26b is connected to one end of the equalizer 70, and the other end of the equalizer 70 is connected to the first slider 6
0, and is pivotally attached to a guide pin 61 loosely inserted into the first elongated holes 60a, 60a.

The second slider 80 includes the first slider 6
0 is sandwiched between a pair of side plates, and is a double plate structure attached to the first slider 60 so as to be relatively movable in the vertical direction. A slightly lower side than the intermediate portion is pivotally supported by the guide pins 61 of the equalizer 70. The stopper pieces 80a, 80a that bend outward at the lower ends of both side plates are
It is loosely inserted into guide holes 7b, 7b opened in the unit case 7a almost outside the long holes 60a, 60a.

Guide holes 7b, 7b of unit case 7a
The vertical length of the first elongated hole 60 of the first slider 60 is
a, the sliding amount of the stopper pieces 80a, 80a caused by the pulling of the equalizer 70 during the operation of the interlocking brake system 23 is reduced by the guide holes 7b, 7a.
b, the operating force of the hydraulic brake 10 by the interlocking brake system 23, the operating force of the hydraulic brake 10 by the independent brake system 22, and the hydraulic brake by the independent brake system 22. 10
To be smaller than the operating force.

The return spring 90 which is the delay means of the present invention.
Is a helical spring contracted between the upper wall of the unit case 7a and the upper end of the second slider 80, and constantly biases the second slider 80 in the non-operation direction regardless of the first slider 60. In the inoperative state shown in FIGS. 1, 3, and 4, the stopper pieces 80a, 80 of the second slider 80 are
a contacts the lower walls of the guide holes 7b, 7b of the unit case 7a.

In the above-mentioned non-operating state, the wire end 24a of the independent brake connecting means 24 is connected to the second elongated hole 60b,
A guide pin 61, which is located at the upper end of the first slider 60b and connects the equalizer 70 and the second slider 80, has a first elongated hole 60a,
It is located at the upper end of 60a.

This embodiment is constructed as described above, and each component of the brake device 2 is not operated when the first and second brake operators 4 and 5 are not gripped and operated, as shown in FIGS. , Shown in FIG.

Next, the operation of the independent brake system 22 using the first brake operator 4 will be described with reference to FIG. 5. The gripping operation of the first brake operator 4 causes the independent brake linking means 24 to operate. The first slider 60 is pulled, and the equalizer 70, the second slider 80, and the guide pin 61 are pulled.
, Slide upward in FIG. 5 and leave the piston rod 4 of the hydraulic master cylinder 40.
3 is also pulled upward in FIG.

Inside the hydraulic master cylinder 40, the piston 43a at the lower end of the piston rod 43 goes up the cylinder hole 42 while reducing the hydraulic pressure chamber 44, and the piston cup 43b closes the relief port 46, and the hydraulic pressure rises. Pressure chamber 4
After the communication between the reservoir 4 and the inside of the reservoir 48 is interrupted, the hydraulic fluid in the hydraulic chamber 44 is gradually increased in pressure. The hydraulic fluid pressurized in the hydraulic chamber 44 is supplied from the output port 45 to the hydraulic pipe 25.
To the caliper body 31 of the hydraulic brake 10, which hydraulically operates the caliper body 31 to brake the front wheel 9.

In the operation of the independent brake system 22 using the first brake operator 4, the independent brake connecting means 2 is used.
4, the first slider connection side, the first slider 60, and the piston rod 43 slide in a straight line on the axis L1, so that the input from the first brake operator 4 is not unnecessarily dispersed and the hydraulic master cylinder 40 can be efficiently transmitted. As a result, the gripping operation force imposed on the rider can be reduced, and the hydraulic master cylinder 40 can be reduced in size, weight, and cost.

Next, the operation of the interlocking brake system 23 using the second brake operator 5 will be described with reference to FIGS.
Traction-side connecting means 26a of interlocking brake connecting means 26
Is pulled, and the equalizer 70 is further pulled. In the equalizer 70, the driven linking means 26 on the rear wheel brake side is used.
b and the guide pin 61 on the front wheel brake side are pulled upward in FIGS. 6 and 7, but on the front wheel brake side, the urging force of the return spring 90, which is the delay means, is applied to the second slider 80 in the non-operation direction ( 6 and 7), only the driven side linking means 26b on the rear wheel brake side is towed first.

The driven side linking means 26b on the rear wheel brake side pulled by the equalizer 70 rotates the operating lever 35 of the mechanical brake 12, and the cam shaft 36 integral with the operating lever 35 is supported by the anchor 34 as a fulcrum. Both brake shoes 33,
The rear wheel is braked by expanding 33.

Then, the traction force of the traction side connecting means 26 a is increased by the operating resistance of the mechanical brake 12, and when the traction force exceeds the urging force of the return spring 90, the equalizer 70 is moved to the first position via the guide pin 61. Slider 60 and second
6 and the first slider 60 pulls the piston rod 43 upward in FIGS. 6 and 7, and the hydraulic pressure is increased in the same manner as the operation by the first brake operator 4 described above. The hydraulic fluid pressurized in the hydraulic chamber 44 of the master cylinder 40 is supplied to the caliper body 31 of the hydraulic brake 10 so that the front wheels 9 are braked.

The stopper pieces 80a, 8 of the second slider 80
0a is the first slot 60 of the first slider 60 as described above.
a, guide hole 7 of unit case 7a shorter than 60a
b, 7b, the stopper pieces 80a, 8
The lifting by the equalizer 70 is stopped at the stage when 0a comes into contact with the upper ends of the guide holes 7b, 7b, and the increase in the operating force of the hydraulic brake 10 is restricted. After that, only the operating force of the mechanical brake 12 increases. go.

Therefore, in the operation of the interlocking brake system 23 by the second brake operator 5, the hydraulic brake 10 for the front wheel is moved to the mechanical brake 12 for the rear wheel by the urging force of the return spring 90 which is the delay means. It works with a delay. As a result, in the operation of only the interlocking brake system 23, the mechanical brake 12 for the rear wheel to which the corresponding vehicle load is applied operates before the vehicle load moves in the front direction, so that a large operating force is required. Is suddenly applied, the vehicle body load does not suddenly move to the front side, and the early locking of the hydraulic brake 10 for the front wheels can be suppressed as much as possible. Further, the mechanical brake 12 for the rear wheel operates even after the increase in the operating force of the hydraulic brake 10 is restricted, so that a stable braking force mainly by the mechanical brake 12 is secured.

As shown in FIG. 8, when both the independent brake system 22 and the interlocking brake system 23 are operated, if the operation of only the interlocking brake system 23 is performed,
While the increase in the operating force of the hydraulic brake 10 is regulated as described above, the combined use with the single brake system 22
Since the first elongated holes 60a, 60a of the first slider 60 are set longer than the guide holes 7b, 7b of the unit case 7a, the stopper pieces 80a,
Even after the lifting of the equalizer 70 is stopped by the contact of the upper end of the guide holes 7b, 7b of the unit case 7a with the 80a, the independent brake connecting means 24 pulls the first slider 60 further upward, and the hydraulic brake Increase the operating force of 10. And these brake systems 2
Hydraulic brake 1 actuated by any of 2 and 23
0 is activated by the sum of the gripping operation forces of the first brake operator 4 and the second brake operator 5. Therefore, in the operation of both the independent brake system 22 and the interlocking brake system 23, a braking force with a higher pressure on the hydraulic brake 10 for the front wheels can be obtained.

If the independent brake system 22 using the first brake operator 4 fails for some reason, the second brake operator 5 of the interlocking brake system 23 is gripped and operated. The other end of the equalizer 70, which has lost the resistance from the brake system 22, is pulled up, the stopper pieces 80a, 80a of the second slider 80 contact the upper ends of the guide holes 7b, 7b of the unit case 7a, and the equalizer 70 is guided Since the mechanical brake 12 is actuated by pivoting around the fulcrum 61 and pulling the driven side linking means 26b upward, the braking of the rear wheels can be ensured.

In the present invention, at least the independent brake connecting means and the tension type hydraulic master cylinder are connected to a slider, and the slider is connected to the traction side connecting means and the driven side connecting means of the interlocking brake connecting means. The second slider used as the regulating means and the return spring used as the delay means may be omitted in this embodiment.

Each connecting means can be a wire cable or rod or a combination of wire cable and rod. The regulating means may have a configuration other than the second slider exemplified in the embodiment, and the delay means may be made of a spring material other than a helical spring, rubber, or a soft synthetic resin. Further, the hydraulic brake and the mechanical brake can be set for the front wheel brake and the rear wheel brake in a manner opposite to the above embodiment.

[0040]

According to the present invention, as described above, the number of parts and the weight can be reduced while using a brake device for a bar handle vehicle having a single brake system and an interlocking brake system.

Further, by arranging at least the slider connecting side portion of the independent brake connecting means, the slider and the piston rod in a straight line, the operating force from the first brake operating member is efficiently transmitted to the hydraulic master cylinder. It is possible to transmit well and to sufficiently exert a predetermined braking force required for a hydraulic brake even with a small operating force. Therefore, it is possible to reduce the extra grip operation force that has conventionally been imposed on the rider, and to replace the hydraulic master cylinder with a small enough, light and inexpensive one that is necessary and sufficient.

Further, the other end of the equalizer is provided with a regulating means interlocking with the slide pin and for restricting the movement of the piston rod in the towing direction in the operation of the interlocking brake linking means. In the event of a failure for such a reason, the operation of the mechanical brake can be ensured by operating the interlocking brake system.

Further, by providing the hydraulic brake as a front wheel brake and providing delay means for delaying the start of operation of the regulating means from the mechanical brake, the corresponding vehicle body can be moved before the vehicle body load moves in the front direction. Since the mechanical brake for the rear wheel that is loaded is activated, even if a large operating force is suddenly applied, the vehicle load does not suddenly move to the front side, and the hydraulic brake for the front wheel Early locking can be suppressed as much as possible.

[Brief description of the drawings]

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

FIG. 2 is a front view of a scooter-type motorcycle equipped with the brake device of FIG. 1 showing one embodiment of the present invention;

FIG. 3 is a partial cross-sectional front view showing a non-operating state of a master cylinder unit used in a brake device of a bar handle vehicle showing one embodiment of the present invention;

4 is a sectional view taken along line IV-IV in FIG.

FIG. 5 is a cross-sectional front view of the master cylinder unit when only a single brake system according to an embodiment of the present invention is operated.

FIG. 6 is a cross-sectional front view of a master cylinder unit when only an interlocking brake system according to an embodiment of the present invention is operated.

FIG. 7 illustrates one embodiment of the present invention, VII-VI in FIG.
I cross section

FIG. 8 is a cross-sectional front view of a master cylinder unit when both a stand-alone brake system and an interlocking brake system according to an embodiment of the present invention are operated.

[Explanation of symbols]

1. Scooter type motorcycle, 2. Brake device, 3.
Handlebar, 4 ... first brake operator (right brake lever), 5 ... second brake operator (left brake lever), 6 ... leg shield, 7 ... master cylinder unit, 7a ... unit case, 7b ... guide hole, 9: front wheel, 10: hydraulic brake for front wheel, 12: mechanical brake for rear wheel, 20: accelerator grip, 21: fixed grip, 22: independent brake system, 23: interlocking brake system, 24: independent Linkage means for system brake, 24a ...
Wire end, 25 ... Hydraulic piping, 26 ... Interlocking brake connecting means, 26a ... Traction side connecting means, 26b ... Driven side connecting means, 26c, 26d ... Wire end, 30 ... Disk rotor, 31 ... Caliper body, 33 ... Brake shoe, 40 ... Tension type hydraulic master cylinder, 41 ...
Cylinder body, 42 ... Cylinder hole, 43 ... Piston rod, 43a ... Piston integrated with piston rod 43,
44: hydraulic chamber, 45: output port, 46: relief port, 47: supply port, 48: reservoir, 51: return spring, 60: first slider (slider of the present invention), 6
0a, 60b: long hole, 61: guide pin, 62: rotating pin, 70: equalizer, 80: second slider (the restricting means of the present invention is formed together with the guide hole 7b and the stopper piece 80a), 80a: stopper piece , 90 ... return spring (delay means of the present invention), L1 ... center axis

Claims (4)

[Claims] 1. A hydraulic pressure generated in a hydraulic master cylinder by pulling one of a front wheel brake and a rear wheel brake of a bar handle vehicle by an independent brake connecting means by operating a first brake operating member. No hydraulic brake to operate, and no mechanical brake to pull and operate the linking means for the interlocking brake by operating the second brake operator,
The hydraulic master cylinder has a tension type that generates a hydraulic pressure by pulling a piston inserted into the cylinder hole toward the opening of the cylinder hole, and a piston rod that projects to the outside of the cylinder hole continuously with the piston. A slider is interposed between the linking means for the independent brake and a long hole in the sliding direction is formed in the slider, and the linking means for the interlocking brake is connected to the traction side connected to the second brake operator. The linking means is divided into a driven side linking means connected to the mechanical brake, and an equalizer is interposed between the traction side linking means and the driven side linking means, and the traction side is provided at an intermediate portion of the equalizer. Connecting the linking means, connecting the driven linking means to one end of the equalizer, and connecting the other end of the equalizer to the slider with a slide pin inserted into the long hole. Bar-handle vehicle brake system, characterized in that. 2. The brake device for a bar handle vehicle according to claim 1, wherein at least a slider connection side of the independent brake connecting means, the slider and the piston rod are arranged in a straight line. 3. A regulating means provided at the other end of said equalizer, said regulating means interlocking with said slide pin, and regulating movement of said piston rod in a towing direction by operation of said interlocking brake connecting means. Claim 1 or 2
4. The brake device for a bar handle vehicle according to claim 1. 4. A bar handle vehicle according to claim 3, wherein said hydraulic brake is used as a front wheel brake, and a delay means is provided for delaying the start of operation of said regulating means from said mechanical brake. Brake device.