CN1095780C - Front and back linkage brake device for vehicle - Google Patents

Abstract

The front and rear linkage braking device for vehicles has front and rear wheel brake operating parts and characteristic setting springs. The linkage braking force transmission system can apply the braking force to the front wheel brakes, and the springs can act on the opposite elastic force to the transmission system. One end of the system and one end of the rear wheel braking force transmission component are respectively connected to both ends of the equalizer. When the operating force of the rear wheel brake operating member does not reach the corresponding value of the spring force, the equalizer will rotate and make the rear wheel brake work. When the above When the operating force exceeds the corresponding value of the spring force, the front wheel brake is driven and the rear wheel brake is driven. In this way, only the rear wheel braking force is generated at the initial stage of the braking operation, and the braking force is also generated at the front and rear as the braking operation force exceeds the specified value, and the front and rear linkage braking can be performed with a simple structure, and the braking force can be adjusted according to the brake operating parts. The operation of multiple wheel brakes makes the linkage action.

Description

Front and rear linked brake devices for vehicles

The invention relates to a front and rear linkage brake device for vehicles, especially a front and rear linkage brake device suitable for motorcycles. The rear wheel brake operating part that makes the rear wheel brake and the front wheel brake act in conjunction.

Known this device has for example Japanese Patent Publication No. 47-3298, No. 50-53842 and No. 7-196069 etc. to disclose.

In the above-mentioned existing device, the reaction force of the rear wheel brake, which is operated according to the brake operation of the rear wheel brake operating member, acts on the front wheel brake, thereby making the rear wheel and the front wheel brake interlock, so the structure more complicated. Therefore, it is proposed that, as shown in FIG. 28, the output hydraulic pressure of the front wheel master hydraulic cylinder _MF , which outputs the brake hydraulic pressure in response to the brake operation of the front wheel brake operating member 6', act on the front wheel hub. Disc brake B _F' ; the output hydraulic pressure of the master hydraulic cylinder M _R for the rear wheels, which outputs the brake hydraulic pressure according to the brake operation of the rear wheel brake operating member 7', acts on the rear wheel through the proportional control valve V. Disc brake B _R' ; and the rear wheel brake operating part 7 is connected to the rear wheel brake operating part 7 with the linkage wire rope 10' that can only transmit the brake operating force from the rear wheel brake operating part 7' side to the front wheel brake operating part 6' side. ' and the front wheel brake operating member 6' are connected to each other, and the front and rear linkage braking is realized with this simple structure. However, with this scheme, the braking operation of the rear wheel brake operating member 7 ′ directly makes the front wheel brake operating member 6 ′ act; Braking force is generated at the front and rear wheels.

Moreover, when the braking device that makes a plurality of wheel brakes interlockingly act according to the operation of the brake operating member as described above is simply used on the parking brake, since the notch of the parking lever and the brake lever is combined to All of the multiple wheel brakes perform the braking action. Therefore, when the wheel brakes are hydraulic, the rubber components such as hoses and seals, which are structural parts of the hydraulic wheel brakes, have hydraulic pressure on the rubber components, so the rubber components will be damaged. lifespan is reduced.

The present invention is made in order to solve the above-mentioned problems existing in the prior art. Its first purpose of the invention is to provide a front and rear linkage braking device for such a vehicle, which only generates rear wheel braking at the initial stage of braking operation input. power, but as the brake operation input exceeds the specified value, it can also generate braking force on the front wheels; in addition, front and rear linkage braking can be performed with a simple structure.

The second object of the present invention is to provide a front-rear interlocking braking device for a vehicle, that is, it can make a plurality of wheel brakes interlock according to the operation of the brake operating member. Therefore, only a specific wheel brake can be activated among a plurality of wheel brakes, and unnecessary operation of the wheel brake can be avoided.

In order to achieve the purpose of the above invention, a front and rear linkage braking device for vehicles is provided, which is provided with: a front wheel brake operating member that activates the front wheel brake according to the brake operation; The rear wheel brake operating part of the wheel brake linkage action is characterized in that a characteristic setting spring is set between a component of the linkage braking force transmission system and a fixed member fixed on the vehicle body, and the linkage braking force transmission system can The braking force corresponding to the operation of the rear wheel brake operating member acts on the front wheel brake, and the spring acts on the above-mentioned spring with the elastic force in the opposite direction to the force acting on the linkage brake force transmission system from the rear wheel brake operating member side. In the linkage braking force transmission system, one end of the linkage braking force transmission system, one end of the rear wheel braking force transmission member connected to the rear wheel brake, are respectively connected to both ends of the equalizer, and the rear wheel brake The operating part is connected to the roughly central part of the equalizer. When the operating force of the rear wheel brake operating part does not reach the value corresponding to the spring force of the characteristic setting spring, the above equalizer uses the connection part with the linkage braking force transmission system as the fulcrum. While generating the turning action, the rear wheel brake can be applied by means of the rear wheel braking force transmission member, and when the operating force of the rear wheel brake operating member exceeds the corresponding value of the elastic force of the characteristic setting spring, the above-mentioned equalizer can be moved along such a Directional action, that is, the front wheel brakes are driven by means of the interlocking brake force transmission system, and the rear wheel brakes are driven by means of the rear wheel brake force transmission member.

The front and rear linkage braking device for vehicles of the present invention may also include the following features: the rear wheel brake operating member is connected with the equalizer by means of a connecting member, and a stopper is arranged on the connecting member, which is aligned with the equalizer in such a direction. The combination of the equalizer, that is, prevents the equalizer from rotating toward the side where the transmission force of the rear wheel braking force transmission member is loosened, using the connection portion with the connection member as a fulcrum.

The front and rear linkage braking device for vehicles of the present invention may also include the following features: the linkage braking force transmission system is that one end is connected to the other end of the linkage wire rope on the equalizer, so that it can only be moved laterally from the rear wheel brake operating member The side of the front wheel brake operating member is connected to the front wheel brake operating member so as to transmit the brake operating force.

According to another aspect of the present invention, the brake pedal as the rear wheel brake operating member is connected to the approximate center of the equalizer, and one end of the equalizer is connected to the linkage braking force transmission system. The other end portion of the rear wheel is connected with a mechanical rear wheel brake by means of a rear wheel braking force transmission member.

According to another aspect of the present invention, the interlocking braking force transmission system has an interlocking master hydraulic cylinder capable of outputting hydraulic pressure acting on the hydraulic front wheel brakes and linked with the equalizer.

According to another aspect of the present invention, the hydraulic front wheel brake is a disc brake provided with a first caliper piston and a second caliper piston, and the first caliper piston is used in conjunction with the operation of the front wheel brake operating member. The corresponding front wheel is actuated by the output hydraulic pressure of the master hydraulic cylinder, and the above-mentioned second caliper piston is actuated by the output hydraulic pressure of the interlocking master hydraulic cylinder.

According to another aspect of the present invention, a linked master hydraulic cylinder is connected to the hydraulic system connected to the hydraulic chamber adjacent to the master piston of the front wheel master hydraulic cylinder that operates according to the operation of the front wheel brake operating member and the front wheel brakes. , in order to prevent the hydraulic pressure generated in the hydraulic chamber from acting on the side of the master hydraulic cylinder for interlocking with the action of the above-mentioned master piston.

According to another aspect of the present invention, the linkage braking force transmission system is provided with: a linkage wire rope connected to an equalizer at one end, and the output action is generated by any one of the traction action of the linkage wire rope and the operation of the front wheel brake operating member. The main hydraulic cylinder for the hydraulic front wheel used in the hydraulic front wheel brake.

According to another aspect of the present invention, the above-mentioned box is provided with a parking brake mechanism, which maintains a specific brake wire rope among a plurality of brake wire ropes so that The state of traction action, while other brake wire ropes are in the state of non-traction action.

According to another aspect of the present invention, the parking brake mechanism is provided with a parking lever housed in the above-mentioned box, which is capable of operating in an equalizer position corresponding to the braking operation of the above-mentioned brake operating member, and with this The action is performed between the position where the equalizer is combined and the non-combined position where the equalizer is released; the above-mentioned equalizer is installed in the above-mentioned box and can be operated according to the brake operating member when the parking lever is combined with the equalizer. The operation force is removed, and it moves to the parking brake position that makes the specific steel wire rope in the above-mentioned plurality of brake wire ropes become the traction action state, and other brake wire ropes become the non-traction state.

According to another aspect of the present invention, the parking lever, which is spring-bounced from the coupling position to the non-coupling position, is linked with an operating member which can operate the parking lever from the outside of the box and is supported on the box.

According to another aspect of the present invention, the parking brake switch for detecting the movement of the parking lever to the combined position is mounted on the box.

According to another aspect of the present invention, the above-mentioned box is composed of a box-shaped housing part that rotatably supports the brake operating member and is integrally arranged on the clamping member mounted on the steering handle, and covers the opening of the housing. end and a cover combined with the housing portion.

According to another aspect of the present invention, a brake switch for changing the state of the switch according to the operation of the equalizer corresponding to the operation of the above-mentioned brake operating member is mounted on the above-mentioned box.

Fig. 1 is the overall structure diagram of the front and rear linkage braking device of the first embodiment,

Fig. 2 is a cutaway top view of the right end of the joystick of the motorcycle,

Fig. 3 is an enlarged sectional view taken along line 3-3 of Fig. 2,

Fig. 4 is a cutaway top view of the left end of the joystick of the motorcycle,

Fig. 5 is an enlarged sectional view taken along line 5-5 of Fig. 4,

Fig. 6 is a schematic diagram showing the operating state when only the front wheel brake operating member is operated,

Fig. 7 is a characteristic diagram of the braking force of the front wheel and the rear wheel,

Fig. 8 is a schematic diagram showing the operating state when only the rear wheel brake operating member is operated to operate the rear wheel brake,

Fig. 9 is a schematic diagram showing the operating state when only the rear wheel brake operating member is operated to make the front wheel and rear wheel brakes interlock.

Fig. 10 is a schematic diagram showing the action state when the front-wheel and rear-wheel brake operating members are operated together,

Fig. 11 is an overall structural diagram of the front and rear interlocking braking device of the second embodiment,

Fig. 12 is a cross-sectional top view of the left end of the joystick of the third embodiment,

Fig. 13 is a sectional view taken along line 13-13 of Fig. 12,

Fig. 14 is a sectional view taken along line 14-14 of Fig. 12,

Fig. 15 is a sectional view taken along line 15-15 of Fig. 12,

Fig. 16 is an overall structural diagram of the front and rear interlocking braking device of the fourth embodiment,

Fig. 17 is an enlarged vertical sectional side view of the rear wheel brake operating member and the master hydraulic cylinder for linkage,

Fig. 18 is an overall structural diagram of the front and rear interlocking braking device of the fifth embodiment,

Fig. 19 is an enlarged longitudinal side view of the main hydraulic cylinder for the front wheel,

Fig. 20 is an overall structural diagram of the front and rear interlocking braking device of the sixth embodiment,

Fig. 21 is an overall structural view of a front and rear interlocking brake device for a vehicle according to a seventh embodiment of the present invention,

Figure 22 is a top view of the left end of a lever steering handle of a motorcycle,

Fig. 23 is a sectional front view along the direction indicated by 3 in Fig. 22,

Fig. 24 is a sectional view taken along line 4-4 of Fig. 22,

Fig. 25 is an enlarged sectional view taken along line 5-5 of Fig. 23,

Fig. 26 is a cross-sectional view showing the main part of Fig. 23 in a state where the cover is omitted for explaining the operating state in the non-braking operation state,

Fig. 27 is a sectional view corresponding to Fig. 26 for explaining the operating state in the parking brake operating state,

Fig. 28 is an overall structural diagram of a front and rear linkage braking device in the prior art.

Hereinafter, embodiments of the present invention will be described with reference to embodiments of the present invention shown in the drawings.

Fig. 1～Fig. 10 shows the first embodiment when the present invention is used in the small motorcycle, Fig. 1 is the whole structure diagram of the front and rear interlocking braking device, Fig. 2 is the cut-away top of the right end portion in the control handle of the motorcycle Views, Fig. 3 is an enlarged cross-sectional view along line 3-3 of Fig. 2, Fig. 4 is a cut-away top view of the left end of the control handle of the motorcycle, and Fig. 5 is an enlarged cross-sectional view taken along line 5-5 of Fig. 4 , Fig. 6 is a schematic diagram showing the action state when only the front wheel brake is operated, Fig. 7 is a characteristic diagram of the braking force of the front wheel and the rear wheel, and Fig. 8 is a diagram showing that only the rear wheel brake operation part is operated to make the rear wheel brake The schematic diagram of the action state during the action, Fig. 9 is a schematic diagram of the action state when only the rear wheel brake operating member is operated to make the front wheel and rear wheel brake linkage action, Fig. 10 is a schematic diagram of the front wheel and rear wheel brake operation member Schematic diagram of the operating state when operating together.

First, in Fig. 1, the front and rear linkage braking device is provided with a front wheel brake operating lever ₆₁ as a front wheel brake operating member and a rear wheel brake operating lever ₇₁ as a rear wheel brake operating member, the former The hydraulic front wheel brake B _F1 is actuated by the brake operation, and the mechanical rear wheel brake B _R1 and the above-mentioned front wheel brake B _F1 can be operated in conjunction with the brake operation.

The rear brake operating lever ₇₁ is connected to the approximate center of the equalizer ₁₂₁ , and is linked to one end of the brake force transmission system ₄₁ and the rear brake force transmission member connected to the rear brake _BR1 . One end of the wheel brake wire rope 11 is connected to both ends of the above-mentioned equalizer ₁₂₁ .

The interlocking braking force transmission system ₄₁ is composed of an interlocking wire rope 10 and an auxiliary operating part ₈₁ whose end is connected with the equalizer bar _121. The auxiliary operating part ₈₁ can be connected to the front wheel brake from its non-braking operating position. After the moving operating rod ₆₁ is combined, it is connected with the other end of the linkage steel wire rope 10. The interlocking wire rope 10 is bounced to one side by the effect of the characteristic setting spring ₉₁ , that is, to the side where the combination of the auxiliary operating part ₈₁ and the front wheel brake operating lever ₆₁ is released, and the above-mentioned auxiliary operating part ₈₁ It is connected with the other end of the linkage wire rope.

The front wheel brake B _F1 is a disc brake having a master cylinder 14 integrated with a brake caliper 13 by means of an output from the master cylinder 14 corresponding to an operation input to the brake lever 15 of the master cylinder 14. hydraulic pressure to make it brake. The rear wheel brake B _R1 is a cylindrical brake, which is provided with a brake drum 17 supported on the rear wheel axle 16, pivoted on the brake plate 18 by means of a pin 19 and can rub against the inner peripheral surface of the brake drum 17. The combined pair of brake pads 20, 20, the pair of springs 21, 21 that bounce the two brake pads 20, 20 toward the direction of approaching each other, can make the two brake pads 20, 20 be crimped on the brake drum 17 A cam 22 pivotally supported on the brake plate 18 on the inner peripheral surface of the brake drum 17 , and a brake cam lever 23 whose base end is connected to the cam 22 and extends to the outside of the brake drum 17 . The rear wheel brake B _R1 generates a braking force in accordance with an operation input to the brake cam lever 23 .

In FIG. 2 and FIG. 3 , at the right end of the joystick 25 provided on the front portion of the scooter body, there is provided a grip portion 26 that the driver grasps with his right hand. Use a pair of bolts 29,29 on the control handle 25 on the inner side than the handle portion 26 to install an upper clamping part 27 and a lower clamping part 28, which clamp the control handle 25 from up and down. On the substantially "U"-shaped angle bracket 28a that is integrally provided with the lower clamping member 28, the base end portion of the front wheel brake operating lever ₆₁ is rotatably supported by the support shaft 30, and Just tighten the right hand of the handle portion 26 to brake and operate the front wheel brake operating lever 6 ₁ .

On the lower clamp member 28, a first supporting portion 28b is integrally provided, which is opposed to the base end portion of the front wheel brake operating lever _61. As shown in FIG. One end of the outer steel wire 31a in the front wheel brake wire 31 is fixed on the first support portion 28b, and one end of the inner steel wire 31b protruding from the outer steel wire 31a is connected to the base end of the front wheel brake operating lever _61. connect. And the other end of the front wheel brake wire 31 is connected with the brake lever 15 of the front wheel brake B _F1 shown in FIG. 1 . In this way, the front wheel brake B _F1 is actuated in accordance with the brake operation of the front wheel brake operating lever ₆₁ .

The support shaft 30 protrudes downward from the angle bracket 28a, and the auxiliary operation member ₈₁ is rotatably supported by the portion of the support shaft 30 protruding from the angle bracket 28a. At one end of the auxiliary operating member ₈₁ , a joint portion 8a is integrally provided, which is the non-braking operation from the first support portion 28b side of the lower clamping member 28, that is, from the front wheel brake operating lever ₆₁ . The position side is combined with this front wheel brake operating lever ₆₁ , and the other end of the auxiliary operating member ₈₁ is connected with a connecting member 33 by means of a connecting pin 32 having an axis parallel to the fulcrum 30. And, on the lower clamping part 28, the second supporting part 28c facing the connecting member 33 with a certain interval is integrally provided, and the end of the outer steel wire rope 10a on the interlocking steel wire rope 10 is fixed on the second supporting part. 28c, the end of the inner wire rope 10b protruding from the outer wire rope 10a is connected to the connecting member 33. And between the second supporting part 28c on the lower clamping part 28 as the fixing member fixed on the vehicle body, and the connecting member 33 as a structural part of the interlocking braking force transmission system ₄₁ , a characteristic setting is provided in a compressed manner. The spring 9 ₁ , which is helical around the inner wire rope 10b, this characteristic sets the spring 9 ₁ to spring the auxiliary operating member 8 ₁ to such a direction, that is, to make the joint 8a and the front wheel brake operating lever 6 ₁ The combination of is released, promptly produces such elastic force, and it acts on the interlocking wire rope 10 along the direction opposite to the force that the interlocking wire rope 10 acts on the front wheel brake operating member ₆₁ .

In FIGS. 4 and 5 , at the left end of the operating handle 25 is provided a handle portion 34 that the driver grasps with his left hand. On the control handle 25 that is also inside than this handle portion 34, a pair of bolts 37, 37 are installed to clamp this control handle 25 upper clamping part 35 and lower clamping part 36 from top to bottom. The lower clamp 36 is integrally provided with a box-shaped portion 36a for opening the upper portion, and the upper clamp 35 is integrally provided with a flat plate-shaped cover portion 35a for closing the upper end opening of the box-shaped portion 36a. Furthermore, the box-shaped portion 36a and the lid portion 35a are fastened to each other by bolts 38 in addition to the above-mentioned bolts 37 and 37 to form a case 39 .

An angle bracket 36b is integrally provided on the lower clamp member 36, and the base end portion of the rear brake operating lever ₇₁ is rotatably supported by the angle bracket 36b via the support shaft 40. As shown in FIG. Then, the rear wheel brake operating lever ₇₁ can be braked with the left hand gripping the grip portion 34 .

One end of the connecting rod 41 is connected with the base end of the rear wheel brake operating lever ₇₁ , and this connecting rod 41 can freely move through the side wall of the box 39 and is inserted in the box 39. On the other hand, the equalizer 12 ₁ is accommodated in the case 39 , and the connecting member 42 connected to the other end of the connecting rod 41 is connected to the substantially central portion of the equalizer 12 ₁ via a connecting pin 43 .

In one end of the linkage steel rope 10, the outer steel rope 10a is fixed on the box 39, and the inner steel rope 10b protruding from the outer steel rope 10a and inserted in the box 39 is connected to one end of the equalizer ₁₂₁ . In addition, the rear wheel brake wire rope 11 is connected with the brake cam lever 23 of the rear wheel brake _BR , and in one end of the rear wheel brake wire rope 11, the outer wire rope 11a is fixed on the box 39, and is connected from the outside. The inner wire rope 11b protruding from the wire rope 10a is connected to the other end of the equalizer ₁₂₁ .

Although the braking operating force formed by the rear wheel brake operating lever ₇₁ acts on the equalizer ₁₂₁ by means of the connecting rod 41 and the connecting member 42, the operating force of the rear wheel braking operating lever ₇₁ does not meet the characteristics. When setting the corresponding value of the elastic force of spring ₉₁ , equalizer ₁₂₁ only rotates with the connection portion with linkage steel wire rope 10 as a clip, and in this state, can obtain the tractive force acting on the rear wheel brake wire rope 11, The braking force produced by the rear wheel brake B _R1 is thus applied to the rear wheel brake B _R1 . When the operating force of the rear wheel brake operating lever ₇₁ is above the corresponding value of the elastic force of the characteristic setting spring ₉₁ , the equalizer ₁₂₁ compresses the characteristic setting spring ₉₁ and moves toward the direction that the auxiliary operating member ₈₁ can rotate Move, in this state, equalizer 12 ₁ just moves toward the direction (promptly along the left side of Fig. 4) that linkage wire rope 10 and rear wheel brake wire rope 11 are pulled together.

In addition, a stopper 42a combined with the equalizer ₁₂₁ is integrally provided on the connecting member 42, and this stopper 42a is combined with the equalizer ₁₂₁ in such a direction that the equalizer ₁₂₁ is prevented from being connected to the connecting member. The connecting portion of 42, namely with connecting pin 43 and fulcrum, rotates toward the side of loose rear wheel brake wire rope 11.

Next, the operation of the first embodiment will be described. As shown in Figure 6, in the state of not operating the rear wheel brake operating lever ₇₁ , when only the front wheel brake operating lever ₆₁ is braked, the front wheel brake wire rope 31 is pulled due to the front wheel brake. B In _{the F1} action, only the front wheel braking force can be obtained as shown by the line segment AB in Fig. 7 .

Next, in the state where the front brake operating lever ₆₁ is not operated, when the rear brake operating lever ₇₁ is braked, the operating force of the rear brake operating lever ₇₁ is less than that of the characteristic setting spring ₉₁ . When the elastic force corresponds to the value, as shown in FIG. 8, the equalizer ₁₂₁ is rotated with the connecting part with the linkage wire rope 10 as a fulcrum, thereby pulling the rear wheel brake wire rope 11, and the rear wheel brake B _R1 is braked. , the braking force of only the rear wheels can be obtained as shown by the line AC in FIG. 7 .

In the state where the front wheel brake operating lever ₆₁ is not operated, when the rear wheel brake operating lever ₇₁ is braked with an operating force exceeding the elastic force of the characteristic setting spring ₉₁ , as shown in FIG. 1. Make the equalizer ₁₂₁ move towards the direction of pulling both the linkage wire rope 10 and the rear wheel brake wire rope 11, combine the auxiliary operating part ₈₁ with the front wheel brake operating lever ₆₁ , and make it move towards the braking operation position side action, thus the braking force on the front wheel brake B _F1 can be obtained, and the traction force of the rear wheel brake wire rope 11 can be used to obtain the braking force on the rear wheel brake B _R1 . The braking characteristics at this time are as shown in the figure 7 is shown by line segment CD.

In this way, in the state where the front wheel brake operating lever ₆₁ is not operated, when the rear wheel brake operating lever ₇₁ is braked, the braking characteristics shown in the line segment ACD in FIG. The distribution of wheel braking force and rear wheel braking force is close to the ideal distribution. And the point C in Fig. 7, that is, under the state of not operating the front wheel brake operating lever ₆₁ by braking, only when the rear wheel brake operating lever ₇₁ is operated with a relatively light operating force, only the rear wheel brake B _R1 obtains the rear wheel brake B of the braking force. The braking force of _R1 is determined by the spring load of the characteristic setting spring 9 _1. When the type of motorcycle changes, the selection of the characteristic setting spring 9 ₁ can easily Adjust braking characteristics.

When the front wheel brake operating lever ₆₁ and the rear wheel brake operating lever ₇₁ are braked together, the equalizer ₁₂₁ is acted as shown in Figure 10, and the front wheel brake B _F1 and the rear wheel brake can be used. B _R1 get braking force together. At this time, the operating state of the equalizer ₁₂₁ is determined by the operation input of the rear wheel brake operating lever ₇₁ , and the distribution of the front wheel braking force and the rear wheel braking force is based on the ratio of the left and right brake operation inputs, as shown in Fig. 7 The hatching indicates the range of variation.

If it is assumed that the linkage wire rope 10 is in the state of being cut off due to some reasons, because the stopper 42a of the connecting member 42 connected with the rear wheel brake operating lever ₇₁ is combined with the equalizer ₁₂₁ , the equalizer 12 is stopped. ₁ Turning the connecting pin 43 as a fulcrum toward the side of the slack rear wheel brake wire rope 11, so that the traction force caused by the brake operation of the rear wheel brake operating lever ₇₁ can be reliably applied to the rear wheel brake wire rope 11, The braking force of the rear wheel brake B _R1 can be ensured, thereby improving reliability.

Like this, can form the linkage action of front wheel and rear wheel brake B _F1 , B _R1 by the braking operation of rear wheel brake operating lever ₇₁ , but can obtain relatively small operating force by making front wheel brake B _F1 The disc brake with a large braking force can easily set the inclination θ (refer to FIG. 7 ) of the braking characteristic graph in the interlocking braking state. Furthermore, by making the rear wheel brake B _R1 a mechanical cylinder brake, the cost can be reduced, and it can be used on vehicles such as small-wheeled motorcycles whose prices are set relatively low. And when the front wheel brake B _F1 and the rear wheel brake B _R1 are all made into cylinder type brakes, the adjustment of the steel wire ropes along with the brake lining wear and tear just becomes cumbersome.

Fig. 11 is a schematic diagram showing a second embodiment of the present invention, and parts corresponding to those of the above-mentioned first embodiment are denoted by the same reference numerals.

The front wheel brake B _F2 is a disc brake without a master hydraulic cylinder. The hydraulic pressure output from the front wheel master hydraulic cylinder 45 that is directly operated by the front wheel brake operating lever ₆₂ is controlled by the modulator 46 to make it Acting on the front wheel brake B _F2 , the modulator 46 is controlled by the electronic control assembly 47 according to the detection signal of the sensor 48 such as the rear wheel speed sensor.

The interlocking braking force transmission system ₄₂ is composed of a linkage wire rope 10 connected to the equalizer ₁₂₁ at one end _, and an auxiliary operation part ₈₂ connected with the other end of the linkage wire rope 10 at one end. The shaft 49 on which the rod ₆₂ pivots together is supported. The other end of this auxiliary operating part ₈₂ can be combined with it from the non-braking operating position side of the front wheel brake operating lever ₆₂ , and the interlocking wire rope 10 is bounced to the auxiliary operation by the action of the characteristic setting spring ₉₁ . The direction in which the combination of the operating member ₈₂ and the front wheel brake operating lever ₆₂ is released, when the brake operating force corresponding to the elastic force of the characteristic setting spring ₉₁ is input from the rear wheel brake operating lever ₇₁ , the auxiliary The operating member ₈₂ drives the front wheel brake operating lever ₆₂ to the side of the brake operating position, thereby obtaining the linked braking state.

With this second embodiment, the same effect as that of the above-mentioned first embodiment can be obtained.

12 to 15 are schematic diagrams showing the third embodiment of the present invention. FIG. 12 is a cross-sectional top view of the left end of the joystick. FIG. 13 is a cross-sectional view taken along line 13-13 in FIG. Fig. 12 is a cross-sectional view taken along line 14-14, and Fig. 15 is a cross-sectional view taken along line 15-15 in Fig. 12 .

On the control handle 25, at the inner side of the handle part 34 provided at its left end, a pair of bolts 37, 37 are used to clamp the control handle 25 up and down, and an upper clamping part 35' and a lower clamping part 36 are installed. '. A box-shaped part 36a' opened toward the front side of the motorcycle is integrally provided on the lower clamping part 36', and the cover member 50 constituting the box 39' together with the box-shaped part 36a' is tightened by a pair of screw members 51, 51. It is fixed on the open end of the box-like portion 36a'. On the cover member 50, a pair of protrusions 50a, 50b connected to the closed end of the box-shaped portion 36a' are integrally provided, and the threaded members 51, 51 respectively inserted in these protrusions 50a, 50b. It is screwed into the box portion 36a'.

An angle bracket 36b' is provided integrally with the lower clamp member 36', and the base end portion of the rear brake operating lever ₇₂ is rotatably supported on the angle bracket 36'b via a support shaft 40. As shown in FIG. One end of the connecting rod 41 is connected to the base end portion of the rear wheel brake operating lever ₇₂ , and the connecting rod 41 is inserted through the box 39' and freely moves through the side wall of the box 39'. The case 39' accommodates the equalizer 12 ₁ , and the connecting member 42 ′ connected to the other end of the connecting rod 41 is connected to the approximate center of the equalizer 12 ₁ via a connecting pin 43 . In one end of the linkage wire rope 10, the outer wire rope 10a is fixed on the box 39', and the inner wire rope 10b is connected to one end of the equalizer ₁₂₁ . And in one end of the rear wheel brake wire rope 11, the outer wire rope 11a is fixed on the box 39', and the inner wire rope 11b is connected with the other end of the equalizer ₁₂₁ .

On the outer side of the cover member 50 constituting the box 39', a damper box 52 is fastened by a pair of threaded members ⁵¹ , 51 for fastening the cover member 50 to the box-like portion 36a1. A damper 53 is housed inside, and a slider 54 in contact with the damper 53 is slidably fitted. At the protruding end of the slider 54 protruding from the damper case 52, an engaging hole 55 is provided, and an engaging pin 56 protrudingly provided on the rear brake operating lever ₇₂ is engaged with this engaging hole 55. As shown in FIG. And the joint hole 55 is made into such a shape, that is, according to the brake operation of the predetermined amount or more of the rear wheel brake operating lever ₇₂ , the slide block 54 can be moved towards the direction opposite to the damper 53. Between the box 52 and the slide block 54, a reset spring 57 is arranged in a compressed manner, and it springs the slide block 54 toward the damper 53 side.

The bosses 50a, 50b integrated with the cover member 50 are arranged at positions facing the western end of the equalizer ₁₂₁ , respectively, and these bosses 50a, 50b are made to have such a function that when the rear wheel When the operation input output by the brake operating lever ₇₂ is the maximum, it functions as a stopper that is in contact with the equalizer ₁₂₁ .

This 3rd embodiment can also use the damper 53 to detect and make the starter motor of the motorcycle act after the rear wheel brake operating lever ₇₂ is only operated by a predetermined amount except that it can obtain the same effect as the above-mentioned embodiments. And, even if the interlocking wire rope 10 is cut off for some reason, the brake operating force can be increased until the equalizer ₁₂₁ contacts the two protrusions 50a, 50b, thereby avoiding the traction force of the rear wheel brake wire rope 11 from being damaged. slack to ensure braking power on the rear wheel side.

16 and 17 are schematic diagrams showing a fourth embodiment of the present invention. FIG. 16 is an overall structural view of the front and rear interlocking braking device, and FIG. 17 is an enlarged longitudinal sectional view of the rear wheel brake operating member and the interlocking master hydraulic cylinder.

This front and rear linkage braking device is provided with the front wheel brake operating lever ₆₂ as the front wheel brake operating part and the brake pedal ₇₂ as the rear wheel brake operating part, the former is to make the hydraulic front wheel brake according to the brake operation. Brake B _F3 action; the latter is based on the brake operation, can make the mechanical rear wheel brake B _R3 and front wheel brake B _F3 linkage action.

The brake pedal ₇₂ is connected to the roughly central part of the equalizer ₁₂₂ by means of the connecting rod 61, and the brake lever 62, which is a rear wheel braking force transmission member connected to the rear wheel brake B _R3 , is connected to the brake force transmission system ₄₃ and the rear wheel brake B R3. Both ends of the equalizer ₁₂₂ are connected.

The front wheel brake B _F3 is a disc brake provided _with a pair of first caliper type pistons 63 ₁ and 63 ₂ and a second caliper type piston 64. The wheel uses the output hydraulic pressure of the main hydraulic cylinder 45 to act; the latter is actuated by the hydraulic pressure transmitted from the linkage braking force transmission system 4 ₃ , and the output hydraulic pressure of the front wheel with the main hydraulic cylinder 45 and the linkage braking force transmission system 4 ₃ Either of the outgoing hydraulic pressures can generate braking force. The rear wheel brake B _R3 is provided with a brake drum 17 pivotally supported on the axle shaft 16 of the rear wheel, a pair of brake drums 17 pivotally supported on the brake plate 18 by pin 19 and capable of frictionally combining with the inner peripheral surface of the brake drum 17. The moving plates 20, 20, the cam 22 pivotally supported on the brake plate 18 so that the two brake plates 20, 20 can be crimped on the inner peripheral surface of the brake drum 17, the base end is connected on the cam 22 and The brake cam lever 23 extending to the outside of the brake drum 17, the fixed lever 65 that is fixed on the brake drum 17 and is opposite to the brake cam lever 23, produces the brake lever 23 that springs to make the two discs brake. Sheets 20, 20 close to the elastic force of the direction and the return spring 66 is arranged between the two rods 23, 65, and the other end of the brake rod 62 connected to the equalizer ₁₂₂ is connected to the brake cam rod 23 at one end.

The interlocking braking force transmission system ₄₃ is provided with an interlocking main hydraulic cylinder 68 that is driven by the equalizer ₁₂₂ to output hydraulic pressure, and a second caliper piston that applies the output hydraulic pressure of this interlocking main hydraulic cylinder 68 to the front wheel brake B _F3 . 64 is connected with the master hydraulic cylinder 68 for interlocking and the pipeline 69 of the front wheel brake B _F3 .

Linkage master hydraulic cylinder 68 is to be provided with the cylinder body 70 that is fixed on the vehicle body, the hydraulic pressure room 71 that the front end communicates with pipeline 69 and can freely slidably be embedded in the master piston 72 of cylinder body 70 li, and master piston 72 links to each other and the rear end of the piston rod 73 that extends rearward links to each other with an end of equalizer ₁₂₂ , and the return spring 74 that main piston 72 is bounced to the rear side is housed in hydraulic chamber 71. On the inner surface of the rear end portion of the cylinder 70 is fitted a stop ring 75 which defines the limit position of the main piston 72 to retreat.

Between the outer circumference of the main piston 72 and the inner circumference of the cylinder 70, a pair of cup seals 77, 78 mounted on the outer circumference of the main piston 72 form an annular supply chamber 76, between the supply chamber 76 and the hydraulic chamber 71 The cup seal 77 allows brake fluid to flow from the supply chamber 76 to the hydraulic chamber 71 .

On the cylinder body 70, the storage tank 80 is connected with the pipe body 79 extending upwards from the cylinder body 70, the release orifice 81 communicated with the storage tank 80 by the pipe body 79 is set on the body 70, and the main piston 72 It communicates with the hydraulic chamber 71 when it is in the retreat limit; simultaneously, a replenishment orifice 82 communicated with the storage tank 80 by means of the pipe body 79 is provided on the cylinder body 70, and communicates with the replenishment chamber 76 at ordinary times.

Moreover, a compressed characteristic setting is provided between the stop ring 75 as a fixed member fixed on the vehicle body, and the edge portion 73a provided on the piston rod 73 as a structural member of the interlocking braking force transmission system ₄₃ . Spring 9 ₂ .

With this 4th embodiment, under the state of not operating the front wheel brake operating lever ₆₂ , when the brake pedal ₇₂ is operated by braking, the operating force of the brake pedal ₇₂ is not enough to the value of the special setting spring 92. When the elastic force corresponds to the value, the equalizer ₁₂₂ is rotated around the connecting portion with the piston rod 73 as a fulcrum, thereby pulling the brake lever 62, thereby causing the rear wheel brake B _R3 to perform braking operation. And when exceeding characteristic setting spring, when the operating force of the elastic force corresponding value of ₉₂ , brake operation brake pedal ₇₂ , make equalizer ₁₂₂ press piston rod 73, and to the direction action of traction brake lever 62, The braking force is obtained from the front wheel brake B _F3 , and the braking force can be obtained from the rear wheel brake B _R3 . That is, the rear wheel brake operating member is the brake pedal 7 ₂ , and the rear wheel brake B _R3 is a mechanical motorcycle. As long as a small number of components such as the equalizer 12 ₂ and the linkage master hydraulic cylinder 68 are added, the front and rear linkages can be formed. Braking System.

18 and 19 are schematic diagrams showing a fifth embodiment of the present invention. FIG. 18 is an overall structural view of the front and rear interlocking braking device, and FIG. 19 is an enlarged longitudinal side view of the master hydraulic cylinder for the front wheels.

This front-rear interlocking braking device is provided with: a front wheel brake operating lever ₆₂ that operates the hydraulic front wheel brake B _F2 according to the brake operation, and a mechanical rear wheel brake B _R3 and the above-mentioned front wheel brake The brake pedal 7 ₂ of B _F2 linkage action, the brake lever 62 connected with the rear wheel brake B _R3 and the linkage brake force transmission system 4 ₄ are connected to the two ends of the equalizer 12 ₂ , and the equalizer is connected by the connecting rod 61 is connected with brake pedal 7 ₂ .

The front wheel brake B _F2 operates according to the output hydraulic pressure of the front wheel main hydraulic cylinder 45 ′, and the main hydraulic cylinder 45 ′ outputs hydraulic pressure according to the operation of the front wheel brake operating lever ₆₂ . A pipeline 87 communicating with the hydraulic chamber 86 adjacent to the master piston 85 of the front wheel master hydraulic cylinder 45' is connected to the front wheel brake B _F2 .

The interlocking braking force transmission system ₄₄ is provided with: a characteristic setting spring ₉₂ compressed between the retaining ring 75 and the flange 73a and a main hydraulic cylinder ₆₈ for interlocking driven by the equalizer 122; The pipeline 83 communicated with the hydraulic chamber 71 of the main hydraulic cylinder 68 is connected with the hydraulic system of the hydraulic chamber 86 of the main hydraulic cylinder ⁴⁵¹ of the front wheel and the hydraulic system of the front wheel brake B _F2 , so as to prevent the following The main piston 85 of the wheel master hydraulic cylinder 45' moves, and the hydraulic pressure generated in the hydraulic chamber 86 acts on the linkage master hydraulic cylinder 68 side. That is, in the main hydraulic cylinder 45' for the front wheel, between the inner circumference of its cylinder body 88 and the outer circumference of the main piston 85, a pair of cup seals 89, 90 mounted on the outer circumference of the main piston 85 An annular replenishment chamber 91 is formed, and a release orifice 92 is provided on the cylinder body 88, which communicates with the hydraulic chamber 86 when the main piston 85 is in the retreat limit position; Orifice 93. On the other hand, the pipeline 83 of the interlocking braking force transmission system ₄₄ communicates with the release port 92 and the supply port 93 and is connected to the master hydraulic cylinder 45' for the front wheels.

In this fifth embodiment, when the front wheel brake operating lever ₆₂ is in the non-operated position, that is, the main piston 85 of the front wheel main hydraulic cylinder 45' is in the backward limit position, it is determined by using the characteristic setting spring ₉₂ . The operating force above the operating force of the brake pedal ₇₂ is operated to enable the rear wheel brake B _F3 and the front wheel brake B _R2 to act in conjunction, which can produce the same effect as the above-mentioned fourth embodiment, and is attached to the The storage tank 80 on the master hydraulic cylinder 68 for interlocking can be shared with the master hydraulic cylinder 45' for the front wheels, thereby reducing the number of components.

Fig. 20 is a schematic diagram of a sixth embodiment of the present invention, and parts corresponding to the above-mentioned embodiments are described with the same reference signs.

This front-rear interlocking brake device is provided with: _a front wheel brake operating lever ₆₃ for actuating the hydraulic front wheel brake B _F2 according to the brake operation; The brake pedal 7 ₂ of the brake B _F2 linked action, the brake lever 62 connected with the rear wheel brake B _R2 and the linked brake force transmission system 4 ₅ are connected to the two ends of the equalizer 12 ₂ , and the equalizer 12 ₂ is It is connected with the brake pedal ₇₂ by means of the connecting rod 61.

Linkage braking force transmission system ₄₅ is provided with: the linkage steel wire rope 10 that is connected with one end of equalizer ₁₂₂ ; The interlocking wire rope 10 is connected to the front end of the pressure rod 96 on the main hydraulic cylinder 45 for the front wheel connected to the front wheel brake B _F2 . Furthermore, a characteristic setting spring 9 ₃ is provided in a compressed manner between a fixed rod 97 integrated with the front wheel master cylinder 45 and the front end of a pressure rod 96 which is a member of the interlocking braking force transmission system ₄₅ .

In addition, the front wheel brake operating lever ₆₃ is rotatably supported on the common support shaft 95 with the pressing lever 96, and the pressing lever 96 is provided with a stopper protrusion 96a, which is used to stop the brake operation before braking. When the wheel brake operating lever ₆₃ is used, it is combined with it, thereby the pressure acts on the main hydraulic cylinder 45 for the front wheel.

In this sixth embodiment, in the state where the front wheel brake operating lever ₆₃ is not operated, the brake pedal ₇₂ is braked by using an operating force greater than the operating force determined by the characteristic setting spring ₉₃ . Therefore, the front wheel brake operating lever ₆₃ can be put aside and the pressure rod 96 can be rotated regardless, so that the front wheel master hydraulic cylinder 45 can output the hydraulic pressure acting on the front wheel brake B _F2 . Promptly can make rear wheel brake B _R2 and front wheel brake B _F2 linkage action, can produce the same effect as above-mentioned the 4th and the 5th embodiment; 5 embodiment, the number of components can be further reduced.

Fig. 21～Fig. 27 shows the 7th embodiment of the present invention, and Fig. 21 is the overall structural diagram of vehicle front and rear interlocking braking device, and Fig. 22 is the top view of the left end in the bar type steering handle of motorcycle, and Fig. 23 is a diagram 22 arrow 3 direction cut front view, Figure 24 is a sectional view taken along the 4-4 line of Figure 22, Figure 25 is an enlarged sectional view taken along the 5-5 line of Figure 23, Figure 26 is an explanatory non- 23 is a cross-sectional view showing the main part of FIG. 23 with the cover omitted, and FIG. 27 is a cross-sectional view corresponding to FIG. 26 illustrating the operating state under the parking brake operation state.

The vehicle braking device shown in FIG. 21 is provided with: a front wheel brake operating lever 11 for actuating a hydraulic front wheel brake B _F according to a brake operation _; A rear wheel brake operating lever 12 as a brake operating member that acts in conjunction with the front wheel brake _BF .

The rear wheel brake operating lever 12 is connected to the approximate center of the equalizer 13, and the two ends of the equalizer 1 are connected to one end of the interlocking brake transmission system ₄₆ that transmits the brake operation force to the front brake _BF . , and one end of the rear wheel brake wire rope 15 that transmits the brake operation force to the rear wheel brake _BR is connected.

The interlocking braking force transmission system ₄₆ is composed of an interlocking wire rope 14 and an auxiliary operating lever 16. The former is connected at one end with the equalizer 13, and the latter is connected with the other end of the interlocking wire rope 14, which can be used to brake the operating lever from the front wheel. The non-braking operating position side of 11 is combined with it.

The front brake _BF is a disc brake, and a master hydraulic cylinder 18 that outputs hydraulic pressure in accordance with the pressing operation of the auxiliary operating lever 16 is connected to the front brake _BF through a pipeline 19 . The main hydraulic cylinder 18 is arranged on the right end of the rod-type steering handle 35 (referring to FIGS. 22 to 24 ), and the above-mentioned handle is arranged on the front part of the vehicle body in the small-wheeled motorcycle, and the driver operates the front wheel with the right hand. The operating lever 11 is rotatably supported by means of a support shaft 21 on an angle bracket 20 provided on the main hydraulic cylinder 18 . Moreover, the auxiliary operating lever 16, which can input the operating force to the main hydraulic cylinder 18, is also rotatably supported on the angle bracket 20 by means of the above-mentioned support shaft 21, and the auxiliary operating lever 16 is provided with a stopper 16a. This front wheel brake operating lever 11 is combined when brake operation front wheel brake operating lever 11. Between the fixed rod 22 fixedly connected to the main hydraulic cylinder 18 and the above-mentioned auxiliary operating rod 16, a compressed characteristic setting spring 23 is provided, which makes the auxiliary operating rod 16 bounce toward the stopper 16a and the front. The side where the wheel brake operating lever 11 is engaged, that is, springs to release the input to the master hydraulic cylinder 18 . And when the front wheel brake operating lever 11 is braked and operated, by combining the front wheel brake operating lever 11 with the stopper 16a, the auxiliary operating lever 16 is rotated toward the side pressing the main hydraulic cylinder 18, thereby the front wheel brake is activated. Braking force is generated on B _F. In addition, when the interlocking wire rope 14 is pulled, the front wheel brake operating lever 11 can be set aside and the auxiliary operating lever 16 is rotated to press the main hydraulic cylinder 18, thereby Braking force is generated on the front wheel brake B _F.

The rear wheel brake B _R is a cylindrical brake, which is provided with: a brake cylinder 26 pivotally supported on the axle 25 of the rear wheel, a brake cylinder 26 pivotally supported on the brake plate 27 by means of a pin 28 and capable of connecting with the brake cylinder. A pair of brake pads 29,29 that are frictionally combined on the inner peripheral surface of 26 can make the two brake pads 29,29 crimped on the inner peripheral surface of the brake cylinder 26 and pivoted on the brake plate 27. Cam 30, the base end are connected on the cam 30 and the brake lever 31 that extends to the outside of the brake cylinder 26, the fixed lever 32 that is arranged on the brake cylinder 26 opposite to the brake cam lever 31, the brake cam The spring 33 that is compressed between the rod 31 and the fixed rod 32 and that springs the brake cam rod 31 toward the side where the two brake pads 29 and 29 approach each other is based on the input of the rear wheel brake wire rope 15 to the brake cam. Operation input of the lever 31 generates a braking force.

In Fig. 22～Fig. 24, the vehicle body front portion of scooter is provided with rod type steering handle 35, and the left end of steering handle 35 is provided with the handle portion 36 that the driver holds with the left hand. A clamping part 37 is also installed on the steering handle 35 at the inner side. That is, an arc-shaped mounting portion 37a corresponding to the approximately half circumference of the steering handle 35 is integrally provided on the clamping member 37, and is made into an arc corresponding to the remaining half circumference of the steering handle 35 by using a threaded member 39. Shape, and the other end of the installation brace 38 that one end is combined with above-mentioned mounting part 37a is fastened on the clamping part 37, just clamping part 37 is fixed on the steering handle 35. The base end portion of the front brake operating lever 12 is rotatably supported on the clamp member 37 via a support shaft 40 , and the front brake operating lever 12 can be brake-operated by the left hand gripping the handle portion 36 .

In addition, a box-shaped casing part 37b is integrally provided on the clamping part 37, and the box 42 is formed by the cover 41 and the casing part 37b. The cover 41 is combined with the casing part 37b to cover the opening end of the casing part 37b. Yes, the equalizer 13 is housed in the above-mentioned box 42 .

Next, with reference to Fig. 25 and Fig. 26, one end of the connecting rod 43 is connected to the base end of the rear wheel brake operating lever 12, and this connecting rod 43 can freely move through a side wall of the casing part 37b in the box 42. 37b ₁ and inserted in the box 42. On the other hand, the equalizer 13 is housed in the box 42, and the other end of the connecting rod 43 is connected to the approximate center of the equalizer 13, so that the equalizer 13 can be centered on the connecting part with the connecting rod 43. And turn.

In the case portion 37b, on the other side wall _37b2 opposite to the side wall _37b1 , the interlocking cable 14 and the outer cables 14a, 15a of the rear brake cable 15 are fixed in parallel. That is, in one end portion of the interlocking steel rope 14 formed by being inserted through the outer steel rope 14a in a freely movable manner, the outer steel rope 14a is fixed on the other side wall 37b ₂ of the housing portion 37b, from the outer steel rope 14a. An inner wire rope 14 b protruding and inserted into the box 42 is connected to one end of the equalizer 13 . In one end of the rear wheel brake wire rope 15 formed by inserting the inner wire rope 15b freely movable through the outer wire rope 15a, the outer wire rope 15a and the linkage wire rope 14 are fixed on the other side wall _37b2 of the housing portion 37b in parallel. , the inner wire rope 15b protruding from the outer wire rope 15a is connected to the other end of the equalizer 13.

The brake operating force formed by the rear wheel brake operating lever 12 acts on the equalizer 13 by means of the connecting rod 43, but in the state where the operating force output by the rear wheel brake operating lever 12 has not yet acted, the equalizer 13 As shown in Figure 6, do not make the traction force act on the two wire ropes 14, 15, and are in the non-action position close to the other side wall _37b2 of the housing part 37b, but according to the rear wheel brake operating lever The action of the operating force output by 12 moves the equalizer 13 to the operating position where it is separated from the other side wall 36b _2. As the equalizer 13 moves to the operating position, the traction force acts on the two brake wire ropes 14, 15. , the front wheel brake B _F and the rear wheel brake B _R are linked.

The box 42 is provided with a parking brake mechanism 44, which is to keep the rear wheel wire rope 15 under the state of pulling the rear wheel wire rope 15 when the rear wheel brake operating lever 12 is in a non-operated state; Wire rope 14 forms non-traction action state. This parking brake mechanism 44 is provided with parking bar 45 and button 46, and the former is according to the braking operation of rear wheel brake operating lever 12, when equalizer 13 is in action position, can be combined with above-mentioned equalizer 13. The position and release of the non-combined position combined with the equalizer 13 are installed in the box 42; the latter can operate the above-mentioned parking lever 45 from the outside of the box 42, as an operating member that is linked and connected with the parking lever 45 .

On the base end of parking bar 45, fasten shaft 47, it is rotatably supported on the cover 41 in the box 42, and parking bar 45 can be rotatably supported on the box 42 around the axis of shaft 47. The front end of the parking lever 45 is provided with a coupling pin 48, which can be combined with the coupling recess 13a provided on the other end side of the equalizer 13 as shown in FIG. The lever 45 is able to rotate around the axis of the shaft 47 between a combined position and a non-combined position. The combined position refers to the position where the pin 48 of the parking lever 45 is combined with the combined recess 13a of the equalizer 13 in the action position, and the non-combined position. The coupling position refers to a position where the coupling with the coupling recess 13a is released. Moreover, between the box 42 and the parking lever 45, a coil spring 49 around the shaft 47 is provided, and this coil spring 49 can generate an elastic force to spring the parking lever 45 to its non-engagement position side.

Then, in the state where the engaging pin 48 of the parking lever 45 is engaged with the engaging concave portion 13a of the equalizer 13 moved to the operating position according to the operation of the rear brake operating lever 12, when the engaging pin 48 of the rear brake operating lever 12 is engaged, When the operating force is removed, as shown in Figure 27, the equalizer 13 can act on the parking braking position that makes the rear wheel brake wire rope 15 become the traction action state, but makes the linkage wire rope 14 become the non-traction state.

The button 46 is supported so that its inner end contacts the front end of the parking rod 45 and the outer end protrudes outside the box 42 so that it can be pressed into the housing portion 37b in the box 42. Pressing the button 46 from the outside of the box 42 can move the parking lever 45 from the non-engagement position to the engagement position.

An opening 50a is provided on the cover 50 covering the upper part of the steering handle 35 provided on the front of the vehicle body of the scooter. The outer end of the button 46 is disposed through the opening 50a, and the button 46 is equipped with a dustproof cover. The ring 51 is in contact with the outside of the cover 50 around the opening 50a.

The outside of the cover 41 in the box 42 is equipped with a parking brake switch 52, and the end of the shaft 47 protruding from the cover 41 is fixed with a rod 53 connected to the detection head 52a of the parking brake switch 52. And bar 53 is fixed on the axle 47 like this, promptly when parking bar 45 is in non-combined position, presses detection head 52a, when pressing button 46, according to parking bar 45 and equalizer 13 combination, releases to detection head 52a. Pressure, so it can be detected with the parking brake switch 52 that the parking lever 45 is moved to the combined position.

Also on the other side wall 37b ₂ of the housing portion 37b in the box 42, a brake switch 54 is installed between the interlocking wire rope 14 and the rear wheel brake wire rope 15, and it is positioned with the equalizer 13 The non-operating position of the above-mentioned other side wall 37b ₂ approaching and the action position detached from the above-mentioned other side wall 37b ₂ make the switch state change, so after the equalizer 13 moves to the action position, it can be controlled by this The actuation switch 54 detects the state of the linkage action of the front wheel brake _BF and the rear wheel brake _BR .

Below, the effect of this embodiment is described, under the state of not operating the rear wheel brake operating lever 12, when only braking the front wheel brake operating lever 11, along with being combined with the front wheel brake operating lever 11 When the auxiliary operation lever 16 presses the main hydraulic cylinder 18, the front wheel brake _BF is actuated.

In the state where the front wheel brake operating lever 11 is not operated, when the operating force above the elastic force of the characteristic setting spring 23 and the brake are operated on the rear wheel brake operating lever 12, the operation of the rear wheel brake operating lever 12 will Power makes the equalizer 13 move to the action position, and the linkage wire rope 14 and the rear wheel brake wire rope 15 are all pulled by the equalizer 13 . Thus, the auxiliary operating lever 16 puts the front wheel brake operating lever 11 aside and presses and operates the main hydraulic cylinder 18 to activate the front wheel brake _BF , and the traction force of the rear wheel brake wire rope 15 activates the rear wheel brake BF. _R acts, thereby forming the linkage action of the front wheel brake B _F and the rear wheel brake B _R. This linked brake state is detected by brake switch 54 .

When braking the front wheel brake operating lever 11 and the rear wheel brake operating lever 12 at the same time, it is also possible to obtain the braking force with the front wheel brake B _F and the rear wheel brake _BR .

To operate the parking brake, the button 46 is pressed while the rear brake operating lever 12 is being operated. Thus, the parking lever 45 is moved from the non-engagement position to the engagement position against the elastic force of the coil spring 49, and the engagement pin 48 of the parking lever 45 is engaged with the engagement recess 13a of the equalizer 13 moved to the operating position. Therefore, when the operating force of the rear wheel brake operating lever 12 is released, as shown in FIG. The wire rope 14 becomes a non-traction state, and only the rear wheel brake _BR is activated in this state, and the front wheel brake _BF becomes a non-action state. Such a parking brake state is detected by the parking brake switch 52. That is, during parking braking, since there is no hydraulic action on rubber members such as hoses and seals that are members of the hydraulic front wheel brake _BF , the life of the rubber members can be improved.

In order to remove this parking brake state, as long as the rear wheel brake operating lever 12 is slightly rotated, the parking lever 45 is moved from the joint position to the non-coupling position by the elastic force of the coil spring 49. Since the connection with the equalizer 13 is released, the rear wheel brake operating lever 12 returns to its original state, so that the equalizer 13 returns to the non-operating position, and the rear wheel brake _BR is in a rest state.

Then, the parking brake operation only needs to carry out the braking operation of the rear wheel brake operating lever 12 and the push-in operation of the button 46, because the parking lever 45 as a structural part of the parking brake mechanism 44 is installed on the In the box 42 of the device 13, the button 46 as another structural member of the parking brake mechanism 44 is to make its outer end protrude from the box 42 and support on the box 42, thus forming a structure for parking brake. It can be made into a structure with excellent appearance.

And because the box 42 is formed by combining the cover 41 and the housing part 37b, the housing part 37b is integrally provided with the clamping part 37 supporting the rear wheel brake operating lever 12, thereby the minimum number of components can be used. Box 42 is formed.

This 7th embodiment can produce the same effect as each of the above-mentioned embodiments, because such a parking brake mechanism is set, that is, when the brake operating member is in an unoperated state, a specific wire rope among a plurality of brake wire ropes Keep the traction action state, and make the other brake wire ropes into the non-traction action state; and arrange the parking brake mechanism in the box, so that the hydraulic wheel brake is in the non-action state during parking braking, which can make the The components of the hydraulic wheel brake, especially the rubber components therein, are protected from useless hydraulic pressure, thereby prolonging the life of the rubber components and the like.

The embodiments of the present invention have been described above, but the present invention is not limited to the above embodiments, and various design changes can be made to the present invention without departing from the claims.

As described above, according to the present invention, in the state where the rear wheel brake operating member is not operated, by operating the front wheel brake operating member, the front wheel brake can be activated to obtain a braking force on the front wheel side, and In the state of not operating the front wheel brake operating part, when the brake is operated on the rear wheel brake operating part, when the operating force of the rear wheel brake operating part is not When the wheel brake operates, when the operating force of the rear wheel brake operating part is above the corresponding value of the elastic force of the specially set spring, the rear wheel brake and the front wheel brake can be linked together; at the initial stage of the brake operation input, it can This makes it possible to generate a relatively small braking force only on the rear wheel side, and realize front and rear linkage braking with a simple structure.

According to the present invention, by turning the equalizer to the side that does not loosen the transmission force of the rear wheel braking force transmission member by using the connection with the connecting member as a fulcrum, even if the interlocking braking force transmission system is cut off for some reason, A braking force is reliably generated at the rear wheel brakes in accordance with the brake operation of the rear wheel brake operating member.

According to the present invention, since the rear wheel brake operating member is a brake pedal, in a vehicle in which the rear wheel brakes are mechanical, the front and rear linked brake system can be easily formed by adding a few components, especially when the brake pedal is not used. When it is necessary to use the master hydraulic cylinder for interlocking, the number of components constituting the front and rear interlocking braking system can be reduced.

According to the present invention, since such a parking brake mechanism is arranged in the box, it is kept so that a specific brake wire rope among a plurality of brake wire ropes is in a traction action state when the brake operating member is in a non-operated state. , and put other brake wire ropes into a non-tracting action state, so that only a specific vehicle brake among multiple wheel brakes can be activated during parking braking, especially when hydraulic wheel brakes and mechanical wheel brakes are used at the same time. In the driving device, when the parking brake is used, the hydraulic wheel brake is set to a non-operating state, so that the rubber components in the structural parts of the hydraulic wheel brake can be protected from useless hydraulic pressure, thereby improving the life of the rubber components. .

According to another aspect of the present invention, the parking brake mechanism is provided with a parking lever housed in the above-mentioned box, which is capable of operating in an equalizer position corresponding to the braking operation of the above-mentioned brake operating member, and with this The action is performed between the combined position of the equalizer and the non-combined position of releasing the combination of the equalizer. Since the equalizer is contained in the above-mentioned box, it can be operated according to the brake operating member under the combined state of the parking lever and the equalizer. The operating force of the above-mentioned multiple brake wire ropes is removed, and the specific brake wire ropes in the above-mentioned multiple brake wire ropes are moved to the parking brake position, while the other brake wire ropes are in the non-traction state. The excellent appearance that part of the structure used is enclosed in a box.

According to another aspect of the present invention, since the parking lever that springs from the above-mentioned coupling position to the non-coupling position is linked with an operating member that can operate the parking lever from the outside of the box and is supported on the box, it is possible to use a simple Operation can realize parking brake.

According to another aspect of the present invention, since the parking brake switch for detecting the movement of the above-mentioned parking lever to the engaged position is mounted on the box, the state of the parking brake can be easily detected.

According to another aspect of the present invention, since the box is composed of a box-shaped housing part that rotatably supports the brake operating member and is integrally arranged on the clamping part mounted on the steering handle, and covers the housing part The open end and the cover combined with the housing part constitute the case, so the box can be constructed with a minimum number of components.

According to another aspect of the present invention, since the brake switch that changes the switch state according to the action of the equalizer corresponding to the operation of the above-mentioned brake operating member is installed on the above-mentioned box, it is possible to easily detect the interlock brake. state.

Claims (14)

1. front and back linkage brake device for vehicle, it is provided with: the front wheel brake operating parts that makes the front-wheel brake action according to brake operating, can make the trailing wheel braking operation piece of rear wheel brake and front-wheel brake interlock action according to brake operating, it is characterized in that: in a component part of interlock brake-force transmission system be fixed between the stationary member on the vehicle body property settings spring is set, this interlock brake-force transmission system can be acting on front-wheel brake with the corresponding braking force of the operation of trailing wheel braking operation piece, this spring is that the elastic force of the direction opposite with the power that acts on interlock brake-force transmission system from trailing wheel braking operation piece side acts on above-mentioned interlock brake-force transmission system, an end of interlock brake-force transmission system, an end of the rear-wheel braking force transmission member that links to each other with rear wheel brake, be connected with the both ends of balancer respectively, and the trailing wheel braking operation piece is connected on the substantial middle position of balancer, when the operating effort of trailing wheel braking operation piece does not reach the elastic force respective value of property settings spring, above-mentioned balancer can make the rear wheel brake effect by the rear-wheel braking force transmission member when producing the revolution action as fulcrum with the connecting portion with interlock brake-force transmission system, and when the operating effort of trailing wheel braking operation piece surpasses the elastic force respective value of property settings spring, above-mentioned balancer can be along such direction action, promptly, system drives front-wheel brake by the interlock brake-force transmission, and rear wheel brake is driven by the rear-wheel braking force transmission member.

2. front and back linkage brake device for vehicle as claimed in claim 1, it is characterized in that: the trailing wheel braking operation piece is connected with balancer by transom, on this transom, block is being set, it is to combine with balancer on such direction, promptly stops balancer to be fulcrum, to rotate towards the transmission power slack-side that makes the rear-wheel braking force transmission member with the connecting portion with transom.

3. front and back linkage brake device for vehicle as claimed in claim 1 or 2, it is characterized in that: interlock brake-force transmission system is the other end that an end is connected the interlock steel rope on the balancer, makes and can only transmit that brake operation force ground is connected on the front wheel brake operating parts and formation from trailing wheel braking operation piece side direction front wheel brake operating parts side.

4. front and back linkage brake device for vehicle as claimed in claim 1, it is characterized in that: the substantial middle portion that is connected balancer as the brake pedal of trailing wheel braking operation piece, on an end of this balancer, connecting interlock brake-force transmission system, on the other end of above-mentioned balancer, connecting the mechanical type rear wheel brake by the rear-wheel braking force transmission member.

5. front and back linkage brake device for vehicle as claimed in claim 1 is characterized in that: interlock brake-force transmission system has the interlock main hydraulic cylinder that output action is connected in the hydraulic pressure of fluid pressure type front-wheel brake, with balancer.

6. front and back linkage brake device for vehicle as claimed in claim 5, it is characterized in that: the fluid pressure type front-wheel brake is the disk brake that is provided with the 1st caliper brake piston and the 2nd slide calliper rule formula piston, above-mentioned the 1st caliper brake piston is used with the output hydraulic pressure of the corresponding front-wheel of the operation of front wheel brake operating parts with main hydraulic cylinder and is moved, and above-mentioned the 2nd caliper brake piston is moved by the output hydraulic pressure of interlock with main hydraulic cylinder.

7. front and back linkage brake device for vehicle as claimed in claim 5, it is characterized in that: be connected the interlock main hydraulic cylinder connecting on the hydraulic efficiency pressure system that the front-wheel move according to the operation of the front wheel brake operating parts main piston with main hydraulic cylinder faces the hydraulic pressure chamber that connects and front-wheel brake, using the main hydraulic cylinder side to linking to stop the action along with above-mentioned main piston, the hydraulic action that in hydraulic pressure chamber, produces.

8. front and back linkage brake device for vehicle as claimed in claim 4 is characterized in that: interlock brake-force transmission system is provided with: the interlock steel rope that an end is connected with balancer, by the operation of the drawing-in motion of this steel rope that links and front wheel brake operating parts either party effect and output action in the front-wheel main hydraulic cylinder of the hydraulic pressure of fluid pressure type front-wheel brake.

9. front and back linkage brake device for vehicle as claimed in claim 1, it is characterized in that: in above-mentioned box, setting stopping brake mechanism, it is under braking operation piece is in non-operating state, specific brake wire in a plurality of brake wires is held in makes its state that carries out drawing-in motion, and other brake wires become non-drawing-in motion state.

10. front and back linkage brake device for vehicle as claimed in claim 9, it is characterized in that: stopping brake mechanism is provided with the stop rod that is installed in the above-mentioned box, it be can with the operating position of the corresponding balancer of brake operating of above-mentioned braking operation piece on, move between the position that combines with this balancer and releasing and the non-binding position that this balancer combines; Above-mentioned balancer is to be contained in the above-mentioned box to remove according to combine with this balancer operating effort of the braking operation piece under the state of stop rod, move and make the specific steel rope in above-mentioned a plurality of brake wire become the drawing-in motion state, and other brake wire becomes the stopping brake position of non-traction state.

11. front and back linkage brake device for vehicle as claimed in claim 10 is characterized in that: from above-mentioned binding site by the spring bullet on the stop rod of non-binding position, connecting and can be from the box outside control member on the box is being operated and be bearing in to this stop rod in linkage.

12., it is characterized in that: detect above-mentioned stop rod and move the parking brake switch of binding site and be mounted on the box as claim 10 or 11 described front and back linkage brake device for vehicle.

13. any one the described front and back linkage brake device for vehicle as in the claim 9～11 is characterized in that: above-mentioned box is by supporting braking operation piece rotationally and be arranged on the steering tiller with being integral the casket shape housing section on the clamping element of being adorned and covering the open end of this housing and the lid that combines with housing section constitutes.

14. as any one the described front and back linkage brake device for vehicle in the claim 9～11, it is characterized in that: according to the action of the corresponding balancer of operation of above-mentioned braking operation piece, the brake switch that on off state is changed is mounted on the above-mentioned box.

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