JP2000043778A - Braking device for two-wheeler - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize a device and to improve productivity by reducing the number of part items so as to simplify a structure. SOLUTION: A second equalizer 15 is provided between a connecting lever 12 connected to a right handle lever 3 and a first equalizer connected to a left handle lever 1, and a stopper mechanism 17 is provided between the first and second equalizers 13 and 15, the stopper mechanism 17 being adapted to freely rotate the second equalizer 15 during the operation of the right handle lever 13, and regulate the rotation of the second equalizer 15 against the first equalizer 13 during the rotation of the left handle lever 1. Thus, a front drum brake 5 is only actuated by the right handle lever 3, and both of the front drum brake 5 and a rear drum brake 6 are actuated by the left handle lever 1. Moreover, since the number of part items is reduced, the entire device is miniaturized, and assembling workability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motorcycle brake device suitably used for a motorcycle provided with a left handle lever or pedal for applying a brake and a right handle lever.

[0002]

2. Description of the Related Art In general, a two-wheeled vehicle is provided with a right handle lever for applying a front brake to a right handle, a clutch lever provided on a left handle, and a speed change pedal provided on a left foot of the vehicle body. A pedal for applying a rear brake is provided at the right foot of the vehicle body. In addition, motorcycles include scooters using a continuously variable transmission to facilitate operation during driving.Since a scooter of this type does not require a clutch lever or a pedal for shifting, the motorcycle has a left handle. Has a left handle lever for applying the rear brake.

In recent scooters and the like, in order to easily and reliably operate the brakes, for example, when the right handle lever is operated, the front brake is operated independently, while when the left handle lever is operated, 2. Description of the Related Art A motorcycle brake device having a configuration for operating both a rear brake and a front brake is provided (for example, JP-A-9-267788).

In this type of prior art motorcycle brake device, an equalizer connected to a left handle lever is provided on the left handle, and the equalizer has a first wire extending to the rear brake and a first wire extending to the right handle lever. 2
And the wire is connected. The right handle is provided with an auxiliary operation lever displaced by a right handle lever or the second wire and connected to the front brake via a third wire.

In the conventional brake apparatus for a motorcycle, the front brake is independently actuated via the auxiliary operation lever and the third wire by turning the right handle lever to rotate the front wheel, thereby braking the front wheels. give.
Further, by gripping and rotating the left handle lever, the rear brake is actuated via the first wire to apply braking to the rear wheel, and the auxiliary operation lever is displaced by the second wire, thereby causing the third operation lever to be displaced. The front brake is activated via a wire to apply braking to the front wheels.

[0006]

In the above-described motorcycle brake device according to the prior art, the auxiliary operation lever is provided on the right handle separately from the equalizer and the like provided on the left handle. The parts are discretely located, and the handling of each wire becomes complicated.
The number of parts such as the wire and the auxiliary operation lever increases. For this reason, there is a problem that the size of the entire apparatus is increased, the number of assembling steps is increased, and the productivity is reduced.

[0007] The present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to reduce the number of parts, simplify the configuration, and achieve miniaturization and improvement in productivity. It is an object of the present invention to provide a brake device for a motorcycle.

[0008]

According to a first aspect of the present invention, there is provided a motorcycle brake apparatus comprising: a housing mounted on a vehicle body; and a slot located in the housing and extending in a longitudinal direction. And a connecting lever that is connected to and pulled by a right handle lever provided on the right handle, and is disposed orthogonal to the connecting lever, and provided on the left handle at an intermediate position in the length direction. A first equalizer that is connected to a left handle lever or a pedal provided on the right side of the vehicle body and is pulled and operated, and one end position in the length direction engages with a long hole of the connection lever;
A second equalizer rotatably mounted at one end of the first equalizer at a position on the other end thereof, and a second equalizer provided between the first equalizer and the second equalizer; When the coupling lever is pulled, the second equalizer is freely rotated with respect to the first equalizer, and when the first equalizer is pulled by the left handle lever or pedal, the first equalizer is turned.
A stopper mechanism for regulating the rotation of the second equalizer with respect to the equalizer, a front brake for applying braking to the front wheels, a rear brake for applying braking to the rear wheels, one end position of the second equalizer, and the front brake. And a second connector that connects between the other end of the first equalizer and the rear brake.

[0009] With this configuration, when the right handle lever is gripped and turned, the second equalizer and the first connection body are pulled together with the connection lever. The front brake operates to apply braking to the front wheels. At this time, since the stopper mechanism freely rotates the second equalizer with respect to the first equalizer, the first equalizer is operated by operating the right handle lever.
Can be prevented from being displaced, and the front brake can be operated independently by the right handle lever.

On the other hand, when the left handle lever is rotated and depressed or the pedal is depressed, the first equalizer is pulled, so that the second connector connected to the other end position of the first equalizer , The rear brake is actuated, and braking is applied to the rear wheels. At the same time, when the first equalizer is pulled by the left handle lever or the pedal, the stopper mechanism regulates the rotation of the second equalizer with respect to the first equalizer, so that the second equalizer is moved together with the first equalizer. The front brake is actuated via the first connector connected to the second equalizer, and the front wheels are also braked.

When the first equalizer and the second equalizer are pulled by the left handle lever or the pedal, the position of one end of the second equalizer is displaced in the elongated hole of the connecting lever. Rotation of the right handle lever by operation of the pedal can be prevented.

A connecting lever, a first equalizer,
Since the second equalizer can be collectively arranged in the housing, the installation space can be reduced and the entire device can be downsized. Also, the number of parts can be reduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a motorcycle brake device according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

First, FIG. 1 to FIG. 10 show a first embodiment of the present invention. In this embodiment, a case where drum brakes are provided on both front wheels and rear wheels will be described.

Reference numeral 1 denotes a left handle lever provided on a left handle 2 located on the left hand side of the driver. Reference numeral 3 denotes a right handle lever provided on a right handle 4 located on the right hand side of the driver. Numerals 1 and 3 actuate a front drum brake 5 and a rear drum brake 6 described later by being gripped and rotated.

Reference numeral 5 denotes a front drum brake provided on a front wheel (not shown).
The brake is applied to the front wheels by pulling a connecting lever 12 described later.

Reference numeral 6 denotes a rear drum brake provided on a rear wheel (not shown). The rear drum brake 6 applies a brake to a rear wheel when a first equalizer 13 described later is pulled.

Reference numeral 11 denotes a housing which is attached to a motorcycle body (not shown). As shown in FIGS. 2 to 4, the housing 11 includes a base plate 11A formed in a laterally convex shape and a base plate 11A. A left upper wall portion 11B bent toward the upper left side of 11A and a right upper wall portion 11C bent toward the upper right side of the base plate 11A at a position lower than the left upper wall portion 11B. And the base plate 11A
Left lower wall portion 11D bent toward the lower left side of
And a right lower wall portion 11E provided at a position higher than the left lower wall portion 11D and bent toward the lower right side of the base plate 11A. Further, the housing 11 is located at the center of the upper side and extends upward and downward,
The lower end surface has a contact portion 13D of a first equalizer 13 described later.
An equalizer stop 11F is provided integrally with the stop. The lower right wall portion 11E is provided with a first equalizer 13 which is pulled by the spring force of the rear drum brake 6.
A stopper for positioning the equalizer 13 by abutting the other end of the equalizer.

Further, a tube 21B of a right brake wire 21 described later is attached to the left upper wall 11B, a tube 19B of a left brake wire 19 described later is attached to the right upper wall 11C, and a left lower wall 11D. A tube 22B of a first brake drive wire 22 described later is mounted on the right side, and a tube 23B of a second brake drive wire 23 described later is mounted on the right lower wall portion 11E.

Reference numeral 12 is located on the left side inside the housing 11,
An elongated hole 12A is formed near the lower side of the connecting lever 12 so as to extend in the longitudinal direction. Further, a wire connection hole 12B to which a wire main body 21A of the right brake wire 21 is connected is formed at an upper end portion of the connection lever 12.

Reference numeral 13 denotes a first equalizer which is provided on the right side of the housing 11 and is provided in a free state, and which extends in the left and right directions so as to be orthogonal to the connecting lever 12. The first equalizer 13 is shown in FIG. 5. As shown in FIG. 6, it is formed by bending a single flat plate. Also,
The first equalizer 13 has a wire connection hole 13A at the middle part in the length direction to which the wire body 19A of the left brake wire 19 is connected, and a pin 14 at one end in the length direction. A pin hole 13B to be fitted and a wire connection hole 13C located at the other end side and connected to a wire main body 23A of the second brake drive wire 23 are provided.

Further, at one end of the first equalizer 13, an arc-shaped contact portion 13D which is in contact with the equalizer stop 11F of the housing 11 when the front drum brake 5 side fails is formed so as to protrude upward. Pin hole 13B
Is disposed on the inner peripheral side of the contact portion 13D.

Reference numeral 15 denotes a second equalizer attached to the first equalizer 13. The second equalizer 15 is bent in a letter shape, and a pin 16 is inserted at one end of the lengthwise direction. A pin hole 15A is formed, and a pin hole 15B into which the pin 14 is inserted is formed at the other end position. The second equalizer 15 has a pin hole 15B on the other end side.
The first equalizer 13 is rotatably attached to a pin hole 13B of the first equalizer 13 via a pin 14 inserted into the first equalizer 13. One end of the second equalizer 15 is engaged with a long hole 12A of the connecting lever 12 via a pin 16 inserted into the pin hole 15A.

Reference numeral 17 denotes a stopper mechanism provided between the first equalizer 13 and the second equalizer 15. The stopper mechanism 17 is provided near the lower side of the pin hole 13B at one end of the first equalizer 13. A stopper portion 17A formed by using a bent portion extending leftward and rightward;
And a contact portion 17B projecting downward and abutting against the stopper portion 17A, which is located near the lower side of the pin hole 15B at the other end of the equalizer 15. As described above, the stopper mechanism 17 is disposed near the pivot (pin 14) of each of the equalizers 13 and 15.

When the connecting lever 12 is pulled by the right handle lever 3, as shown in FIG. 7, the stopper mechanism 17A
7B and the second equalizer 15 is freely rotated in the direction of arrow A with respect to the first equalizer 13. On the other hand, the first equalizer 13 is operated by the left handle lever 1.
Is pulled in the direction of arrow B until the abutment portion 17B abuts against the stopper portion 17A, and the first position is reached at the position where the abutment portion 17B abuts against the stopper portion 17A as shown in FIG. The rotation of the second equalizer 15 with respect to the equalizer 13 in the direction indicated by the arrow B is restricted.

Reference numeral 18 denotes a wire connecting member disposed on the lower left side in the housing 11, and the wire connecting member 18 has a pin hole 18A at an upper end portion as shown in FIG.
8A, and is rotatably connected to one end of the second equalizer 15 via a pin 16. Also, the wire connector 18
A first brake drive wire 22 to be described later is
A wire connection hole 18B to which the wire main body 22A is connected is formed.

A left brake wire 19 has one end connected to the left handle lever 1 and the other end connected to a wire connection hole 13 of the first equalizer 13.
A, and a wire body 19A connected to the wire body 19A.
A includes a tube 19B provided on the outer peripheral side, and the other end of the tube 19B is attached to the right upper wall portion 11C of the housing 11 by two nuts 20 so as to be adjustable in position.

Reference numeral 21 denotes a right brake wire. The right brake wire 21 has a wire body 21A having one end connected to the right handle lever 3 and the other end connected to a wire connection hole 12B of the connection lever 12, and a wire body 21A. A tube 21B is provided on the outer peripheral side of 21A. The other end of the tube 21B is attached to the left upper wall portion 11B of the housing 11 by two nuts 20 so as to be adjustable in position.

Reference numeral 22 denotes a first brake drive wire serving as a first connection body. One end of the first brake drive wire 22 is connected to a wire connection hole 18B of the wire connector 18, and the other end is a front drum. It comprises a wire main body 22A connected to the brake 5, and a tube 22B provided on the outer peripheral side of the wire main body 22A. One end of the tube 22B is positioned on the lower left wall portion 11D of the housing 11.

Reference numeral 23 denotes a second brake driving wire serving as a second connection body. One end of the second brake driving wire 23 is connected to the wire connection hole 13C of the first equalizer 13, and the other end is a rear drum. It comprises a wire main body 23A connected to the brake 6, and a tube 23B provided on the outer peripheral side of the wire main body 23A. One end of the tube 23B is positioned on the lower right wall portion 11E of the housing 11.

Reference numeral 24 denotes a left lower wall portion 11D of the housing 11.
And a first tension spring provided between the first equalizer 13 and the first equalizer 13.
By constantly pulling the wire main body 19A of the left brake wire 19 through 3, the rattle of the left handle lever 1 is prevented.

Reference numeral 25 denotes a second tension spring (shown in FIG. 3) provided between the lower left wall portion 11D of the housing 11 and the connection lever 12, and the tension spring 25 is connected via the connection lever 12. By constantly pulling the wire body 21A of the right brake wire 21, the right handle lever 3
This is to prevent rattling.

The brake device for a motorcycle according to the present embodiment has the above-described configuration. Next, the operation of the brake device will be described with reference to FIGS.

First, when the right handle lever 3 is gripped and turned, the connecting lever 1 is turned by the right brake wire 21.
2. The wire connector 18 is pulled in the direction of arrow C. As a result, the first drum drive wire 22 is pulled to operate the front drum brake 5 to apply braking to the front wheels.

At this time, since the second equalizer 15 is freely rotated with respect to the first equalizer 13 by the stopper mechanism 17, the second equalizer 15 is rotated by the connecting lever 12 in the direction of arrow A. I do. Thus, the first equalizer 13 can be prevented from being displaced by the operation of the right handle lever 3, so that the front drum brake 5 can be operated independently by the right handle lever 3, and braking can be applied only to the front wheels. it can.

On the other hand, when the left handle lever 1 is gripped and turned, the first equalizer 13 is pulled in the direction of arrow C by the left brake wire 19 as shown in FIG.
As a result, the first equalizer 13 pulls the second brake drive wire 23 to operate the rear drum brake 6 to apply braking to the rear wheels.

At the same time, when the first equalizer 13 is pulled in the direction of arrow C, the stopper mechanism 17 restricts the rotation of the second equalizer 15 in the direction of arrow B.
The second equalizer 15 is pulled together with the first equalizer 13 in the direction of arrow C. As a result, the front drum brake 5 can be operated by pulling the brake drive wire 22 connected to the second equalizer 15 via the wire connector 18 to apply braking to the front wheels.

Next, a case will be described in which, for example, the first brake drive wire 22 is cut off during driving of the motorcycle so that the front drum brake 5 cannot be used.

First, when the left handle lever 1 is gripped and turned with the first brake drive wire 22 cut,
The first equalizer 13 is pulled in the direction of arrow C by the left brake wire 19. At this time, as shown in FIG. 10, the first equalizer 13 and the second equalizer 15
Is in a free state, the equalizers 13 and 15 rotate greatly in the direction of arrow A, and the contact portion 13D of the first equalizer 13 contacts the equalizer stopper 11F of the housing 11.

Then, the contact portion 1 of the first equalizer 13
By rotating the left handle lever 1 further from the state in which the 3D abuts on the housing 11, the abutting portion 13D
With the other end of the first equalizer 13 as an arrow D
The second brake drive wire 23 can be pulled by rotating the brake drum in the direction, and the rear drum brake 6 can be operated to apply a braking force to the rear wheels.

When each of the equalizers 13 and 15 is pulled by the left handle lever 1, the pin 16 of the second equalizer 15 is connected to the elongated hole 12 of the connecting lever 12.
Because the right handle lever 3 can be displaced within A, it is possible to prevent the right handle lever 3 from rotating regardless of the operation.

As described above, according to the present embodiment, the front drum brake 5 can be operated independently by the right handle lever 3, and the rear drum brake 6 and the front drum brake 5 can be operated by the left handle lever 1. Since both can be operated, the brake operation can be easily and reliably performed, and the reliability of the brake device can be improved.

Further, the connecting lever 1 is provided in the housing 11.
2. Since the first equalizer 13, the second equalizer 15, and the like can be arranged collectively, the third wire, the auxiliary operation lever, and the like required in the related art can be omitted, and the work of handling the wires and the like can be omitted. This facilitates the operation and reduces the number of parts, thereby improving workability during assembly. As a result, the entire brake device can be reduced in size,
The number of assembly steps can be reduced, productivity can be improved, and manufacturing costs can be reduced.

Further, since the connecting lever 12, the equalizers 13, 15 and the like can be arranged on the front side of the housing 11, the assemblability of these components can be improved, the workability can be improved, and the cost can be reduced.

Further, when the right handle lever 3 is operated, the operation of the left handle lever 1 can be prevented by rotating the second equalizer with respect to the first equalizer 13, and the left handle lever 1 can be operated. When operated, the second equalizer 15 is connected to the long hole 1 of the connecting lever 12.
By moving within the 2A, the operation of the right handle lever 3 can be prevented. Thereby, the operability of each of the handle levers 1 and 3 can be improved, and stable braking performance can be obtained.

Further, since the connecting lever 12, the first equalizer 13, the wire connecting tool 18 and the like can be easily formed by bending a plate serving as a base, the manufacturing cost can be reduced. be able to.

Next, FIGS. 11 to 14 show the second embodiment of the present invention.
The features of this embodiment are as follows: a disc brake is provided on the front wheel, a drum brake is provided on the rear wheel, and both the rear drum brake and the front disc brake are provided by a pedal provided on the right side of the vehicle body. That is, it is configured to operate. In the present embodiment, the same components as those in the above-described first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

Reference numeral 31 denotes a brake pedal provided on the right side of the body 32 of the motorcycle. The pedal 31 replaces the left handle lever 1 according to the first embodiment. It is operated when stopping.

Reference numeral 33 denotes a front disc brake provided on the front wheel. The front disc brake 33 is connected to a hose connection port 41 of a master cylinder housing 41 described later.
B is connected via a brake hose 33A. Further, the front disc brake 33 is configured such that the brake fluid in the master cylinder housing 41
The brake fluid is supplied through the brake hose 33A and operates to apply braking to the front wheels.

Reference numeral 41 denotes a master cylinder housing according to the present embodiment, which is mounted on the body 32 of the motorcycle. Inside the master cylinder housing 41, a cylinder hole 41A which opens downward and extends upward and downward is formed. A piston 42 is slidably inserted in the cylinder hole 41A in the axial direction. In the master cylinder housing 41, a hose connection port 41B communicating with a deep portion of the cylinder hole 41A and a hose connection hole 41C communicating with an intermediate position of the cylinder hole 41A are formed.
B is connected to a brake hose 33A of the front disc brake 33, and a hose connection port 41C is connected to a relay hose 60A of a reservoir tank 60 described later.

A support member 43 is integrally provided on the upper side of the master cylinder housing 41.
3 has a tube 21B of the right brake wire 21 at the upper end thereof.
A wire mounting portion 43A to which a tube 59B of a pedal brake wire 59 to be described later is mounted is provided near the lower side of the support member 43 so as to extend to the right. . Also,
A lower end surface of the support member 43 is provided with a first equalizer 5 described later.
An equalizer stop 43C that the zero contact portion 50A contacts.

Further, on the lower side of the master cylinder housing 41, there is provided a wire mounting portion 44 to which the tube 23B of the second brake driving wire 23 is mounted.
Below the wire attachment portion 44, a lever attachment portion 45 to which a later-described rotating lever 46 is attached is provided.

Reference numeral 46 denotes a turning lever provided below the master cylinder housing 41. The turning lever 46 has a stepped U-shape so as to sandwich the master cylinder housing 41 as shown in FIG. And the other end in the longitudinal direction is located at the lever mounting portion 4 of the housing 41.
5 is rotatably mounted via bolts and nuts 47. Also, in the middle portion in the longitudinal direction of the rotating lever 46,
A push pin 48 for pushing the piston 42 from below is provided. Further, one side of the rotating lever 46 on the front side is elongated, and a pin hole 46A is formed at the tip side. A stopper claw 46B is integrally provided on the other end side of the rotating lever 46, and the stopper claw 46B
Is a lever mounting portion 45 of the master cylinder housing 41.
, And restricts downward rotation of the rotation lever 46 at a predetermined angle.

A connecting lever 49 is located on the left side of the master cylinder housing 41 and is arranged to extend upward and downward. An elongated hole 49A is formed so as to extend. A wire main body 21A of the right brake wire 21 is connected to an upper end of the connecting lever 49.

The connecting lever 49 is provided in a free state at a position on the right side of the master cylinder housing 41.
The first equalizer 50 according to the present embodiment extends in the left and right directions so as to be orthogonal to the first embodiment. The first equalizer 50 has a length direction substantially similar to the first equalizer 13 according to the first embodiment. The wire main body 59A of the pedal brake wire 59 is connected to an intermediate part of the pedal, the pin 51 is attached to one end in the length direction, and the wire main body 23A of the second brake drive wire 23 is connected to the other end. .

Further, at one end of the first equalizer 50, an arc-shaped contact portion 50A which is in contact with the equalizer stop 43C of the support member 43 when the front disc brake 33 is lost is formed to protrude upward. I have.

Reference numeral 52 denotes a second equalizer attached to the first equalizer 50 according to the present embodiment. The second equalizer 52 is substantially the same as the second equalizer 15 according to the first embodiment. The other end in the length direction is pin 5
1 and is rotatably attached to the first equalizer 50 via a pin 53.
9A.

Reference numeral 54 denotes a stopper mechanism provided between the first equalizer 50 and the second equalizer 52 according to the present embodiment. The stopper mechanism 54 is similar to the stopper mechanism 17 according to the first embodiment. And the first equalizer 5
0 and a stopper 54B formed on the second equalizer 52 and abutting against the stopper 54A.

Reference numeral 55 denotes a lever connecting member disposed on the lower left side of the master cylinder housing 41. The lever connecting member 55 has its upper end pivoted to one end of the second equalizer 52 via a pin 53. It is connected as possible. Also,
The lower end of the lever connector 55 is connected to a pin hole 46A of the rotating lever 46 via a pin 56.

Reference numeral 57 denotes a return spring provided between the first equalizer 50 and the second equalizer 52. The return spring 57 moves the abutting portion 54B of the stopper mechanism 54 against the stopper 54A. , The second equalizer 52 is urged against the first equalizer 52.

Reference numeral 58 denotes a master cylinder housing 4
13, a tension spring (shown in FIG. 13) provided between the lower left side of the first brake wire 1 and the connection lever 49. The tension spring 58 constantly pulls the wire body 21A of the right brake wire 21 via the connection lever 46. Right handle lever 3
This is to prevent rattling.

Reference numeral 59 denotes a pedal brake wire. The pedal brake wire 59 has one end connected to the pedal 31 and the other end connected to the first equalizer 50, and an outer periphery of the wire main body 59A. And a tube 59B provided on the side.

Reference numeral 60 denotes a reservoir tank connected to the hose connection port 41C of the master cylinder housing 41 via a relay hose 60A. The reservoir tank 60 is filled with a predetermined amount of brake fluid, and the brake fluid is visually observed from outside. It is installed in a position where the amount can be checked.

Thus, in the brake device according to the present embodiment having the above-described configuration, substantially the same operation and effect as those of the first embodiment can be obtained.
In particular, in the present embodiment, a disc brake can be set on the front wheels, so that the braking capacity can be increased, and the present invention can be applied to a high-performance motorcycle.

In the first embodiment, the stopper mechanism 17 is provided with a pin hole 13 at one end of the first equalizer 13.
B, which is located near the lower side of the second equalizer 15, and is located near the lower side of the pin hole 15B on the other end of the second equalizer 15, formed by using a bent portion extending in the left and right directions. However, the description has been given by taking as an example a case in which it is constituted by the abutting portion 17B projecting downward and abutting against the stopper portion 17A.

However, the present invention is not limited to this, and the stopper mechanism 73 provided between the first equalizer 71 and the second equalizer 72, as in a modification shown in FIGS. A stopper 73A, which is located near the lower side of the pin hole 71B (pin 74) of the first equalizer 71 and separately from the bent portion and is formed as a vertical surface extending upward and downward, and a second stopper 73A. The stopper 7 is located near the lower side of the pin hole 72B on the other end of the equalizer 72.
Alternatively, it may be constituted by a contact portion 73B formed so as to face 3A. This configuration is the same for the second embodiment.

In the first embodiment, the front drum brake 5 is provided on the front wheel and the rear drum brake 6 is provided on the rear wheel. In the second embodiment, the front disc brake 33 is provided on the front wheel. Although the case where the rear drum brake 6 is provided on the rear wheel is illustrated, the present invention is not limited to this. For example, a front disk brake may be provided on the front wheel, and a rear disk brake may be provided on the rear wheel. In this case, a higher performance motorcycle can be supported.

[0068]

As described above in detail, according to the first aspect of the present invention, the second equalizer and the first connector are pulled together with the connecting lever by grasping and rotating the right handle lever. The front brake can be actuated via the first connector to apply braking to the front wheels. At this time, the second equalizer can be freely rotated with respect to the first equalizer by the stopper mechanism to prevent the first equalizer from being displaced by operating the right handle lever. It can be operated independently, and the brake operability can be improved.

On the other hand, by gripping and turning the left handle lever or depressing the pedal, the first equalizer is pulled to disconnect the second connected body connected to the other end of the first equalizer. The rear brake can be operated via the rear wheel to apply braking to the rear wheels. At the same time, when the first equalizer is pulled by the left handle lever or the pedal, the rotation of the second equalizer with respect to the first equalizer can be restricted by the stopper mechanism, so that the second equalizer can be used together with the first equalizer. Of the first equalizer connected to the second equalizer.
The front brake can be actuated via the connection body of the above, and braking can also be applied to the front wheels. Thus, for example, only by operating the left handle lever or the pedal during deceleration, appropriate braking can be applied to the front and rear wheels, and the lever operation can be facilitated and a stable braking force can be obtained.

When the first equalizer and the second equalizer are pulled by the left handle lever or the pedal, the position of one end of the second equalizer can be displaced within the elongated hole of the connecting lever, and the left handle can be displaced. It is possible to prevent the right handle lever from rotating by operating the lever or the pedal. Thereby, the operability of the handle lever and the pedal can be enhanced, and a stable braking force can be obtained.

Further, a connecting lever, a first equalizer,
Since the second equalizer can be collectively arranged in the housing, the number of parts can be reduced, workability during assembly can be increased, and productivity can be improved. In addition, since the space for installing each component can be reduced, the entire brake device can be reduced in size, and the degree of freedom in design can be increased.

[Brief description of the drawings]

FIG. 1 is an overall configuration diagram illustrating a motorcycle brake device according to a first embodiment of the present invention.

FIG. 2 is a front view showing a specific configuration of the motorcycle brake device according to the first embodiment.

FIG. 3 is a left side view of FIG. 2 showing the motorcycle brake device.

FIG. 4 is a right side view of FIG. 2 showing the motorcycle brake device.

FIG. 5 is an enlarged front view showing a first equalizer, a second equalizer, and a stopper mechanism in an assembled state.

FIG. 6 is a right side view of FIG. 5 showing a first equalizer, a second equalizer, and a stopper mechanism.

FIG. 7 is a front view showing a state where a second equalizer is rotated with respect to the first equalizer.

FIG. 8 is a front view showing the motorcycle brake device in a state where the right handle lever is operated.

FIG. 9 is a front view showing the motorcycle brake device in a state where the left handle lever is operated.

FIG. 10 is a front view showing the motorcycle brake device in a state where the left handle lever is operated in a state where the front drum brake has failed.

FIG. 11 is an overall configuration diagram showing a brake device for a motorcycle according to a second embodiment of the present invention.

FIG. 12 is a front view showing a specific configuration of a motorcycle brake device according to a second embodiment.

FIG. 13 is a left side view of FIG. 12 showing the motorcycle brake device.

FIG. 14 is a bottom view of FIG. 12 showing the motorcycle brake device.

FIG. 15 is a front view showing a first equalizer, a second equalizer, and a stopper mechanism according to a modification of the present invention.

FIG. 16 is a bottom view of FIG. 15 showing a first equalizer, a second equalizer, and a stopper mechanism.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Left handle lever 2 Left handle 3 Right handle lever 4 Right handle 5 Front drum brake 6 Rear drum brake 11 Housing 12,49 Connection lever 12A, 49A Slot 13,50,71 First equalizer 15,52,72 Second Equalizer 17, 54, 73 Stopper mechanism 22 First brake drive wire (first connector) 23 Second brake drive wire (second connector) 31 Pedal 32 Body 33 Front disc brake 41 Master cylinder housing

Claims (1)

[Claims] 1. A housing mounted on a vehicle body, and a connecting lever which is formed in the housing, has a slot formed in a longitudinal direction, is connected to a right handle lever provided on a right handle, and is operated by pulling. A first equalizer which is arranged so as to be orthogonal to the connecting lever and is connected to a left handle lever provided on the left handle or a pedal provided on the right side of the vehicle body at an intermediate position in the longitudinal direction and operated by pulling; A second equalizer whose one end in the length direction is engaged with a long hole of the connecting lever, and the other end of which is rotatably attached to one end of the first equalizer; The first equalizer is provided between the first equalizer and the second equalizer. When the connection lever is pulled by the right handle lever, the second equalizer can be freely rotated with respect to the first equalizer. And a stopper mechanism for restricting the rotation of the second equalizer with respect to the first equalizer when the first equalizer is pulled by the left handle lever or pedal; A first brake connected to one end of the second equalizer and the front brake, and a second brake connected to the other end of the first equalizer and the rear brake. And a second connecting body for connecting the two.