JP3157690U - Saddle riding vehicle - Google Patents

Abstract

A straddle-type vehicle body frame capable of achieving a good weight balance of a vehicle body when a hydraulic control unit is arranged on the vehicle body frame is provided. A straddle-type vehicle including a braking device that brakes front wheels and rear wheels, wherein the vehicle body frame includes a front frame extending obliquely rearward and downward from a front end portion of the vehicle body frame to a substantially central portion in the front-rear direction. The braking device includes a hydraulic control unit 22a that intermittently supplies hydraulic pressure to the wheel when the wheel is locked by braking. The hydraulic control unit is connected to the front frame 2c and the rear frame 26 of the vehicle body frame 2. It is arranged in the vicinity of the part. [Selection] Figure 2

Description

The present invention relates to a straddle-type vehicle equipped with a hydraulic braking device that brakes front wheels and rear wheels.

For example, a motorcycle may be equipped with an anti-lock brake system including a hydraulic control unit that intermittently supplies hydraulic pressure to front wheels and rear wheels when the wheels are locked during braking. For example, Patent Document 1 proposes a structure in which the hydraulic control unit is disposed on the rear side of an air cleaner connected to an engine and attached to a seat rail with an elastic member interposed.

JP 2005-59629 A

By the way, in the said conventional structure, the hydraulic control unit is arrange | positioned in the rear side of the air cleaner located in the back of an engine. For this reason, there is a concern that the hydraulic control unit, which is a heavy object, is located rearward from the center of gravity of the vehicle body, which affects the weight balance of the vehicle body.

The present invention has been made in view of the above-described conventional situation, and an object thereof is to provide a straddle-type vehicle that can improve the weight balance of the vehicle body when the hydraulic control unit is disposed on the vehicle body frame.

The present invention provides a vehicle body frame, a front wheel supported on the vehicle body frame so as to be swingable in the left-right direction, a rear wheel supported on the vehicle body frame so as to be able to swing up and down, and braking for braking the front wheel and the rear wheel. The vehicle body frame includes a front frame that extends rearward and obliquely downward from a front end portion of the vehicle body frame to a substantially central portion in the front-rear direction, and a rear frame that extends rearward from the middle of the front frame. The brake device includes a hydraulic control unit that intermittently supplies hydraulic pressure to the wheel when the wheel is locked by braking, and the hydraulic control unit includes a front frame and a rear frame of the vehicle body frame. It is characterized by being arranged in the vicinity of the connecting portion.

According to the saddle riding type vehicle according to the present invention, since the hydraulic control unit is disposed in the vicinity of the connection portion between the front frame and the rear frame of the body frame, the hydraulic control unit that is a heavy object is located near the center of gravity of the vehicle body. As a result, the weight balance of the vehicle body can be improved.

1 is a side view of a motorcycle according to an embodiment of the present invention. It is a side view of the front frame of the motorcycle. It is a side view of the hydraulic control unit arrange | positioned at the said front frame. It is a rear view of the hydraulic control unit. It is sectional drawing (VV sectional view taken on the line of FIG. 3) of the said hydraulic control unit. FIG. 6 is a sectional view of the hydraulic control unit (a sectional view taken along line VI-VI in FIG. 4). It is sectional drawing (VII-VII sectional view taken on the line of FIG. 4) of the said hydraulic control unit.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 to FIG. 7 are views for explaining a motorcycle (saddle-ride type vehicle) according to an embodiment of the present invention. In the description of the present embodiment, the terms front / rear and left / right mean front / rear and left / right when viewed in a seated state unless otherwise specified.

In the figure, reference numeral 1 denotes a motorcycle, and the motorcycle 1 has the following schematic structure. A front fork 3 is supported by a head pipe 2a located at the front end of the body frame 2 so as to be steerable left and right.

A front wheel 4 is pivotally supported at a lower end portion of the front fork 3, and an upper portion of the front wheel 4 is covered with a front fender 5. The front fender 5 is attached to a lower portion of the front fork 3.

A headlight device 6 is disposed on the upper portion of the front fork 3, and a steering handle 7 is fixed to the upper end portion. A circular instrument 11 having a speedometer, a tachometer, and the like is attached to the headlight device 6 so as to be positioned in front of the steering handle 7.

An engine unit 8 is suspended and supported on the vehicle body frame 2 by a front suspension bracket 9, a central suspension bracket 10, and a rear end lower portion of the vehicle body frame 2. An intake device 12 and an exhaust device 13 are connected to the engine unit 8, and a radiator device 14 is disposed in front of the engine unit 8.

The intake device 12 is covered from above with a frame cover 15 disposed at the front of the vehicle body frame 2, and a display device 16 for displaying a vehicle state is disposed on the frame cover 15.

Further, a side stand device 21 is disposed below the left side wall of the engine unit 8 so that the motorcycle 1 stands up slightly to the left.

Furthermore, a rear arm 17 is supported by the rear lower portion of the body frame 2 so as to be swingable up and down, and a rear wheel 18 is pivotally supported by the rear end portion of the rear arm 17. The rear wheel 18 and the front wheel 4 are braked by a hydraulic braking device 22.

A rear wheel suspension device 19 is disposed between the rear arm 17 and the vehicle body frame 2, and the rear wheel suspension device 19 includes a remote type operation characteristic adjustment mechanism 25.

A fuel tank 20 is disposed above the rear wheel suspension device 19. A hydraulic control unit 22 a of the braking device 22 is disposed obliquely in front of the fuel tank 20.

A straddle-type main seat 23a is disposed so as to cover the hydraulic control unit 22a and the fuel tank 20, and a rear side of the tandem seat 23b disposed on the rear side of the main seat 23a is disposed on the rear side. A rear fender 24 is provided to cover the wheel 18 from above.

The vehicle body frame 2 includes the head pipe 2a, a front frame 2c that extends rearward and obliquely downward from the head pipe 2a to a substantially central portion in the front-rear direction, a rear arm bracket 2b that extends downward from a rear end of the front frame 2c, And a rear frame 26 extending obliquely upward from the middle of the front frame 2c.

The front frame 2c is a first front frame member 2d extending rearward from the head pipe 2a in the vehicle width direction left side (one side), and a second front frame member 2d extending rearward in the right side (other side). And a front frame member 2e.

The rear arm bracket 2b includes a first rear arm bracket member 2f that extends downward following the first front frame member 2d, and a second rear arm bracket member 2g that extends downward following the second front frame member 2e. .

The rear frame 26 is disposed on the left side (one side) in the vehicle width direction, and is disposed on the right side (the other side) with the first rear frame member 26a extending rearward from the first front frame member 2d. And a second rear frame member 26b extending rearward from the frame member 2e.

The first rear frame member 26a and the second rear frame member 26b are bolted and fixed to upper boss portions 2h and 2h formed on the rear end surfaces of the first front frame member 2d and the second front frame member 2e. .

The rear frame 26 is bolted and fixed to lower boss portions 2i and 2i formed at the rear end portions of the first rear arm bracket member 2f and the second rear arm bracket member 2g, and obliquely extends from the lower boss portion 2i. The first seat stay member 26c and the second seat stay member 26d extend upward. The rear portions of the first seat stay member 26c and the first rear frame member 26a and the second seat stay member 26d and the second rear frame member 26b are integrally coupled.

Lower portions of the upper boss portion 2h of the first front frame member 2d and the second front frame member 2e are connected by a cylindrical upper cross member 27a extending in the vehicle width direction. The upper portions of the lower boss portions 2i of the first rear arm bracket member 2f and the second rear arm bracket member 2g are connected by a cylindrical lower cross member 27b extending in the vehicle width direction.

The air intake device 12 is disposed between the first front frame member 2d and the second front frame member 2e, and an air cleaner 28 that filters air to the engine unit 8, and a first front frame member of the air cleaner 28 2d and the 2nd front frame member 2e are arrange | positioned in the vehicle width direction outer side, and it has the left and right intake ducts 29 and 29 which supply the driving | running | working wind introduced from the front to the said air cleaner 28. FIG.

A battery 30 is disposed in the vicinity of the rear side of the air cleaner 28 between the first front frame member 2d and the second front frame member 2e. The battery 30 is mounted on a strip-shaped reinforcing plate 31 that is mounted across the first front frame member 2d and the second front frame member 2e. The connection terminals 30a and 30a of the battery 30 are arranged so as to be exposed to the outside by removing the main seat 23a.

An ECU 33 (described later) is disposed above the battery 30, and the ECU 33 is disposed between the air cleaner 28 and the frame cover 15.

The fuel tank 20 is disposed in a space surrounded by the first rear frame member 26a, the second rear frame member 26b, the first seat stay member 26c, and the second seat stay member 26d.

The braking device 22 includes a front wheel master cylinder (not shown) that generates hydraulic pressure by operating a brake lever (not shown), a front wheel brake caliper 35 to which the hydraulic pressure is supplied, and a brake pedal (not shown). It has a rear wheel master cylinder (not shown) that generates hydraulic pressure when operated, and a rear wheel brake caliper 36 to which the hydraulic pressure is supplied (see FIG. 1).

The braking device 22 includes a hydraulic control unit 22a for intermittently supplying hydraulic pressure to the front wheels 4 and the rear wheels 18 when the front wheels 4 and the rear wheels 18 are locked by braking, and a front wheel rotational speed sensor disposed on the front wheels 4. 4a and the ECU 33 for controlling the operation of the hydraulic control unit 22a based on the detection value from the rear wheel rotational speed sensor 18a disposed on the rear wheel 18.

The braking device 22 includes a first front-wheel hydraulic secondary pipe 37a that communicates the hydraulic control unit 22a and the front-wheel brake caliper 35, and a second front-wheel hydraulic secondary pipe 37b that communicates with the front-wheel master cylinder. A first rear wheel hydraulic secondary pipe 38a that communicates with the hydraulic control unit 22a and the rear wheel brake caliper 36 and a second rear wheel hydraulic secondary pipe 38b that communicates with the rear wheel master cylinder. And have.

The first front wheel hydraulic secondary pipe 37a and the second front wheel hydraulic secondary pipe 37b are routed forward from the hydraulic control unit 22a along the inside of the first front frame member 2d. The first rear wheel hydraulic secondary pipe 38a and the second rear wheel hydraulic secondary pipe 38b extend forward from the hydraulic control unit 22a between the hydraulic control unit 22a and the upper cross member 27a. After extending rearward and downward so as to wrap around the upper cross member 27a, it is routed rearward along the inner side of the second rear arm bracket member 2g.

The wiring lengths of the first front wheel hydraulic secondary pipe 37a and the second front wheel hydraulic secondary pipe 37b are the same as those of the first rear wheel hydraulic secondary pipe 38a and the second rear wheel hydraulic secondary pipe 38b. It is set to be approximately equal to or longer than the wiring length.

The hydraulic control unit 22a is disposed in the vicinity of the upper boss portion 2h, which is a connection portion between the front frame 2c and the rear frame 26. Specifically, it is disposed between the first front frame member 2d and the second front frame member 2e and at the center in the vehicle width direction just above the upper cross member 27a. Accordingly, the hydraulic control unit 22a is located in the vicinity of the upper side of the vehicle body center of gravity G (see FIG. 2).

The battery 30 is located in front of the hydraulic control unit 22a, and the fuel tank 20 is located behind. The front wall portion 20a of the fuel tank 20 extends to a position where it slightly wraps below the hydraulic control unit 22a.

The hydraulic control unit 22a includes a front wheel 4 via a first front wheel hydraulic secondary pipe 37a and a second front wheel hydraulic secondary pipe 37b, and a rear wheel 18 connected to a first rear wheel hydraulic secondary pipe 38a and A unit main body 40 that integrally incorporates a hydraulic pump that supplies hydraulic pressure via a hydraulic secondary pipe 38b for two rear wheels, an electric motor (not shown), and each solenoid valve that intermittently supplies the hydraulic pressure, and the unit main body And a holding member 41 for holding 40.

A coupler 42 connected to the ECU 33 via a harness (not shown) is disposed on the right side of the unit body 40, and a fuse box 43 is disposed on the rear side.

The holding member 41 is formed as a resin box having a bottom wall 41a, front and rear walls 41b and 41b, and left and right walls 41c and 41c. The unit body 40 is attached to the holding member 41 by left and right fixing bolts 44, 44 inserted from the rear and a fixing bolt 44 inserted from below.

The holding member 41 is attached to the vehicle body frame 2 via a rubber elastic member 45. The elastic member 45 includes left and right upper elastic members 46 and 46 that restrict the upward movement of the holding member 41 and a lower elastic member 47 that restricts the downward movement of the holding member 41. In detail, it has the following structure.

Support bolts 49, 49 inserted from the outside are fixed to the left and right upper boss portions 2h of the first front frame member 2d and the second front frame member 2e. The left and right support bolts 49 have support portions 49a protruding inward from the upper boss 2h, and the upper elastic member 46 is mounted on the left and right support portions 49a.

The upper elastic member 46 is formed at a bottomed cylindrical main body 46a attached to the support 49a and an outer opening edge of the main body 46a, and is formed between the holding member 41 and the upper boss 2h. And a flange portion 46b that prevents interference between the two.

On the left and right side walls 41c and 41c of the holding member 41, semi-cylindrical left and right receiving portions 41d and 41d opening upward are formed to protrude outward in the vehicle width direction. The upper elastic member 46 is disposed in the left and right receiving portions 41d, and thereby the left and right upper elastic members 46 restrict the movement of the holding member 41 in the front-rear direction and upward.

A cylindrical load receiving portion 27c that protrudes upward is formed at the center in the vehicle width direction of the upper cross member 27a.

A cylindrical insertion portion 41e protruding downward is formed on the bottom wall 41a of the holding member 41, and the insertion portion 41e is inserted into the load receiving portion 27c with the lower elastic member 47 interposed therebetween. Has been. Accordingly, the lower elastic member 47 restricts the movement of the holding member 41 in the front-rear direction, the vehicle width direction, and the downward direction, and the upper cross member 27a controls the hydraulic control unit 22a via the lower elastic member 47. I support it.

The lower elastic member 47 includes a cylindrical boss portion 47a that contacts the opening edge and the inner peripheral surface of the load receiving portion 27c, and a clamp portion 47b that extends to the right in the vehicle width direction following the cylindrical boss portion 47a. A positioning projection 47d extending through the bottom wall 41a of the holding member 41 is formed on the clamp portion 47b.

The clamp portion 47b has a slit 47c through which the first rear wheel hydraulic secondary pipe 38a and the second rear wheel hydraulic secondary pipe 38b are inserted, whereby the first rear wheel hydraulic secondary pipe 38a and The second rear wheel hydraulic secondary pipe 38b is sandwiched between the upper cross member 27a and the hydraulic control unit 22a via the clamp portion 47b.

Reference numeral 50 denotes a fitting for connecting a rubber hose portion and a steel pipe portion of the first front wheel hydraulic secondary pipe 37a and the second front wheel hydraulic secondary pipe 37b.

According to the present embodiment, the hydraulic control unit 22a for intermittently supplying the hydraulic pressure to the front wheels 4 and the rear wheels 18 is disposed in the vicinity of the upper boss portion 2h that is a connection portion between the front frame 2c and the rear frame 26. The hydraulic control unit 22a, which is a heavy object, is positioned in the vicinity of the upper side of the vehicle body center of gravity G, and the weight balance of the vehicle body can be improved.

In the present embodiment, since the fuel tank 20 is disposed between the first rear frame 26a and the second rear frame member 26b and is positioned behind the hydraulic control unit 22a, the hydraulic control unit 22a, which is a heavy load, is used. In addition, the fuel tank 20 can be arranged in a well-balanced manner near the center of gravity G of the vehicle body.

In the present embodiment, since the battery 30 is disposed between the first front frame member 2d and the second front frame member 2e and positioned in front of the hydraulic control unit 22a, the hydraulic control unit 22a, which is a heavy object, is used. In addition, the battery 30 can be arranged in a well-balanced manner in the vicinity of the center of gravity G of the vehicle body.

Since the hydraulic control unit 22a is attached to the first front frame member 2d and the second front frame member 2e, the hydraulic control unit 22a can be supported by the highly rigid first front frame member 2d and second front frame member 2e, The support rigidity of the hydraulic control unit 22a can be improved.

In addition, since the hydraulic control unit 22a is attached directly above the upper cross member 27a that connects the first front frame member 2d and the second front frame member 2e, the hydraulic control unit 22a is improved while increasing the support rigidity of the hydraulic control unit 22a. The control unit 22a can be attached from above, and the assemblability can be improved.

In the present embodiment, since the unit main body 40 of the hydraulic control unit 22a is held by the holding member 41 and the holding member 41 is attached to the vehicle body frame 2, the support rigidity of the holding member 41 can be increased.

Since the holding member 41 is attached to the vehicle body frame 2 via the left and right upper elastic members 46 and 46 and the lower elastic member 47, vibrations from the road surface and the engine unit 8 are transmitted to the hydraulic control unit 22a. Can be suppressed.

In the present embodiment, the upward movement of the holding member 41 is restricted by the left and right upper elastic members 46, and the downward movement of the holding member 41 is restricted by the lower elastic member 47. Therefore, the hydraulic control unit 22a The acting vertical vibration can be efficiently absorbed.

Further, since the left and right upper elastic members 46 restrict the movement of the holding member 41 in the front-rear direction, and the lower elastic member 47 restricts the movement of the holding member 41 in the front-rear direction and the vehicle width direction, The vibration in the front-rear direction and the vehicle width direction acting on the hydraulic control unit 22a can be efficiently absorbed.

In the present embodiment, a clamp portion 47b is formed integrally with the lower elastic member 47, and the first rear wheel hydraulic secondary pipe 38a and the second rear wheel hydraulic secondary pipe 38b are sandwiched by the clamp portion 47b. Therefore, the vibration of the pipe due to the intermittent action of the hydraulic pressure can be absorbed without providing a separate member.

In the present embodiment, the wiring lengths of the first front wheel hydraulic secondary pipe 37a and the second front wheel hydraulic secondary pipe 37b are set as the first rear wheel hydraulic secondary pipe 38a and the second rear wheel hydraulic secondary pipe. Since the piping length of the piping 38b is equal to or greater than that, the piping balance to the front wheels 4 and the rear wheels 18 can be improved, and the operational feeling during the braking operation can be enhanced.

Although the motorcycle has been described as an example in the above-described embodiment, the present invention can also be applied to a three- or four-wheeled motor vehicle equipped with a straddle-type seat or a saddle-type vehicle for traveling on rough terrain.

1 Motorcycle (saddle-ride type vehicle)
2 body frame 2a head pipe 2c front frame 2d first front frame member 2e second front frame member 4 front wheel 18 rear wheel 20 fuel tank 22 hydraulic brake device 22a hydraulic control unit 26 rear frame 26a first rear frame member 26b second Rear frame member 30 Battery 35 Front wheel brake caliper 36 Rear wheel brake caliper 37a First front wheel hydraulic secondary pipe 37b Second front wheel hydraulic secondary pipe 38a First rear wheel hydraulic secondary pipe 38b Second rear wheel Hydraulic secondary pipe 40 Unit main body 41 Holding member 45 Elastic member 46 Upper elastic member 47 Lower elastic member G Body center of gravity

Claims (11)

Body frame,
A front wheel supported by the body frame so as to be steerable to the left and right;
A rear wheel supported by the body frame so as to be swingable up and down;
A straddle-type vehicle comprising a hydraulic braking device for braking the front wheels and the rear wheels,
The vehicle body frame includes a front frame extending obliquely downward and rearward from a front end portion of the vehicle body frame to a substantially central portion in the front-rear direction, and a rear frame extending rearward from the middle of the front frame,
The braking device includes a hydraulic control unit that intermittently supplies hydraulic pressure to the wheel when the wheel is locked by braking,
The straddle-type vehicle, wherein the hydraulic control unit is disposed in the vicinity of a connection portion between a front frame and a rear frame of the body frame. The saddle riding type vehicle according to claim 1, wherein
The rear frame includes a first rear frame member disposed on one side in the vehicle width direction and a second rear frame member disposed on the other side,
A fuel tank disposed between the first rear frame member and the second rear frame member in plan view;
The straddle-type vehicle, wherein the fuel tank is disposed behind the hydraulic control unit. The saddle riding type vehicle according to claim 1 or 2,
The front frame includes a first front frame member disposed on one side in the vehicle width direction and a second front frame member disposed on the other side,
A battery further disposed between the first front frame member and the second front frame member in plan view;
The straddle-type vehicle, wherein the battery is disposed in front of the hydraulic control unit. The saddle riding type vehicle according to claim 1, wherein
The front frame includes a first front frame member disposed on one side in the vehicle width direction and a second front frame member disposed on the other side,
The straddle-type vehicle, wherein the hydraulic control unit is attached to the first front frame member and the second frame member. The saddle riding type vehicle according to claim 4,
A cross member connecting the first frame member and the second frame member;
The straddle-type vehicle, wherein the hydraulic control unit is attached to the first front frame member and the second frame member above the cross member. The saddle riding type vehicle according to claim 1, wherein
The hydraulic control unit includes a unit main body that interrupts hydraulic pressure, and a holding member that holds the unit main body,
The straddle-type vehicle, wherein the holding member is attached to the vehicle body frame. The saddle riding type vehicle according to claim 6,
The straddle-type vehicle, wherein the holding member is attached to the vehicle body frame via an elastic member. The saddle riding type vehicle according to claim 7,
The straddle-type vehicle, wherein the elastic member includes a first elastic member that restricts upward movement of the holding member and a second elastic member that restricts downward movement of the holding member. The saddle riding type vehicle according to claim 8,
The straddle-type vehicle, wherein the second elastic member is configured to restrict movement of the holding member in the vehicle width direction. The saddle riding type vehicle according to claim 7,
The straddle-type vehicle, wherein the elastic member clamps a hydraulic pipe connected to the unit main body. The saddle riding type vehicle according to claim 1, wherein
The braking device includes a front-wheel hydraulic secondary pipe that communicates the hydraulic control unit and the front-wheel brake caliper, and a rear-wheel hydraulic secondary pipe that communicates the hydraulic control unit and the rear-wheel brake caliper. ,
The straddle-type vehicle, wherein the front wheel hydraulic secondary pipe is longer than the rear wheel hydraulic secondary pipe.

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