JP2513743B2 - Constant speed maintaining device for motorcycles - Google Patents

Description

TECHNICAL FIELD The present invention relates to a constant vehicle speed maintaining device for a motorcycle (including a tricycle).

2. Description of the Related Art There is a constant vehicle speed maintaining device that can reduce the fatigue level of an occupant while a motorcycle is traveling or reduce fuel consumption by suppressing vehicle speed fluctuations.

As such a constant vehicle speed maintaining device, for example, JP-A-61-603
The device shown in Japanese Patent Publication No. 2 is known. In the constant vehicle speed maintaining device disclosed in the publication, a release switch for releasing the operation of the device is provided on a cable member for transmitting the rotation amount of the throttle grip to the intake system throttle valve of the vehicle-mounted engine, and operates the throttle grip. The operation of the constant vehicle speed maintaining device can be released by simply performing the operation. However, since the release switch is provided in the cable member between the throttle grip and the throttle valve, an independent wiring must be provided to connect the central control circuit of the constant vehicle speed maintaining device and the release switch, The wiring was complicated.

SUMMARY OF THE INVENTION In view of the above points, an object of the present invention is to provide a constant vehicle speed holding device for a motorcycle with simplified wiring.

A constant vehicle speed maintaining device for a motorcycle according to the present invention is connected to a forced opening / closing cable between a throttle valve and a throttle grip arranged in an intake system of an engine mounted on a motorcycle, and from a constant vehicle speed control command to a release command. A constant vehicle speed holding device for a motorcycle, comprising: a control means for controlling a constant vehicle speed traveling control by controlling an inter-throttle valve opening degree; and a set switch and a release switch for giving the constant vehicle speed control command and the release command to the control means. A slide member that is provided adjacent to the throttle grip, holds the forced opening / closing cable, and is rotatable around the axis of the throttle grip and movable in the axial direction; and the throttle grip and the slide member. A cam portion provided in a region facing the moving member in the axial direction, and the sliding member facing the throttle grip. Urging means for urging, the release switch is provided in the vicinity of the throttle grip so as to engage with the sliding member in the axial direction, and the throttle grip is held by the sliding member. When a rotational force of a predetermined level or more counteracting the pulling force of the forced opening / closing cable is applied, the sliding member is moved by relative rotation with the sliding member to drive the release switch, It is composed.

Embodiments Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 shows a constant vehicle speed holding device. In the figure, reference numeral 1 denotes a throttle grip provided on a vehicle body handle for accelerating and decelerating the engine speed, and the amount of rotation of the throttle grip opens and closes a throttle valve 4 provided in an intake pipe 3 of an engine E via a cable member 2. Transmitted as a degree.

The cable member 2 is wound endlessly between a rotation axis of the throttle grip 1 and a rotation axis of a valve link 5 for opening and closing the throttle valve 4, and is bent to the extent that its transmission function can be obtained. It is wound in a state.

A throttle valve opening adjustment mechanism K that controls the movement of the cable member 2 to adjust the opening of the throttle valve is connected to the middle of the cable member 2. The throttle valve opening adjusting mechanism K has a structure in which a throttle grip link 6 directly coupled to the cable member 2 and responsive to the rotation of the throttle grip 1 is rotatable on a pivot 6a. , The throttle link 7 is also rotatably supported. When the protrusion-shaped stopper 6b formed on the throttle grip link 6 comes into contact with the side end of the throttle link 7, the counterclockwise rotation of the throttle grip link 6 is restricted. The throttle link 7 is connected to one end of a cable member 9 as shown in FIG.
Is transmitted directly to the throttle link 7. That is, when the cable member 9 is pulled rightward in the drawing by the operation of the actuator 10, the throttle link is coupled thereto and rotates clockwise around the pivot 6a against the resilience of the return spring 7a. . FIG. 1 shows a state in which the throttle link 7 is pulled by the cable member 9 and abuts against the stopper 6b of the throttle grip link 6. In the drawing, reference numeral 8 denotes a storage case for the members such as the links 6 and 7. The two cable members 2 and 9 will be referred to as the first cable member 2 and the second cable member 9 for convenience of description below. However, if it is a member having the same function as the second cable member 9, for example, a transmission means for connecting a rod-shaped rod member to the diaphragm 10b of the actuator 10 described below is also conceivable.

The other end of the second cable member 9 is connected to an actuator 10 which is a driving means of the second cable member 9. In this case, it is directly connected to the diaphragm 10b that expands and contracts by the engine negative pressure introduced into the negative pressure chamber 10a. Negative pressure is introduced into the actuator 10 from the intake pipe line 3 of the engine E through the vacuum tank V _T and the vacuum valve V ₁ for acceleration. V ₂ in the figure is a vent valve for introducing the atmosphere A during deceleration. The opening / closing operation of each of the valves V ₁ and V ₂ is performed by the control signal 11 from the control circuit C.

Here, the control circuit C is composed of a microprocessor or the like, and is a circuit which issues control signals in response to engine parameters such as vehicle speed signals and brake switch signals obtained from various sensors 12. When the set switch 13 for issuing a command to set the vehicle speed to a constant value is turned on during traveling, a vehicle speed holding command is sent to the control circuit C. As a result, the control circuit C issues the control signal 11 to adjust the opening degree of the acceleration vacuum valve V ₁ and the deceleration vent valve V ₂ . The negative pressure in the negative pressure chamber 10a of the actuator 10 is adjusted by the opening / closing operation of each of these valves, and the expansion / contraction operation of the diaphragm 10b is transmitted to the throttle link 7 of the throttle valve opening adjustment mechanism K via the second cable member 9. To be done. The rotation angle of the throttle link 7 is transmitted to the throttle valve 4 via the first cable member 2 and the valve link 5, respectively.

Thus, the control means for controlling the opening of the throttle valve 4 to control the constant-speed running of the motorcycle is configured.

As shown, a release switch 15 is provided near the throttle grip 1. The release switch 15 is a switch that issues a release command to the control means that is executing the constant vehicle speed control to stop the control.

FIG. 2 shows a cross section near the throttle grip 1.
The throttle grip 1 is a tubular member, a part of which is rotatably fitted to the right end portion of the handle pipe 16 shown in the drawing. A flange portion 1a is formed on the throttle grip 1, and the grip rubber 17 covers the throttle grip on the right end side of the handle grip 16 from the flange portion 1a. An annular sliding member connected to the cable member 2 is provided on the side opposite to the grip rubber with the flange portion 1a interposed therebetween.
18 is provided so that it can slide on the outer peripheral side surface of the throttle grip 1. A groove 18a around which the cable member 2 is wound is formed on the outer peripheral surface of the sliding member 18. As illustrated, the flange portion 1a and the sliding member 18 are covered by the handle switch housing 20. The handle switch housing 20 is provided with an urging means 21 for urging the sliding member 18 toward the flange portion 1a and the release switch 15 described above, and, as shown in FIG. 4, an engine starter switch 25. A set switch 13 is provided together with an engine kill switch 26 and an operation switch 27 for issuing commands such as acceleration / deceleration to the control circuit C. The handle switch housing 20 is composed of divided bodies 20a and 20b.
And 20b are connected by a fastening means such as a bolt (not shown).

From the handle switch housing 20 each switch 13,1
The wirings individually connected to 5, 25, 26, 27 are bundled together and led out as a wiring group 29. The wiring group 29 is further bundled into a wire harness (not shown).

Protrusions 1b, 1c and 18b, 18c engaging with each other are formed on the respective facing surfaces of the flange portion 1a of the throttle grip and the sliding member 18. The protrusions 1c and 18c each have an inclined slope as a cam portion with respect to the facing surface, and the slopes face each other and stand by. Biasing means for biasing the sliding member 18
The push rod 22 is in contact with the sliding member 18, and the coil spring 23 applies a biasing force to the push rod 22.

When the constant vehicle speed control is not performed by the above-mentioned control means, the sliding member 18 is rotated in the deceleration direction via the cable member 2 by the unillustrated urging means for urging the throttle valve 4 in the closing direction. In addition to receiving the urging force by the urging means 21, Therefore, the sliding member 18 and the throttle grip 1 are engaged by the projections 18c and 1b, and the rotation amount of the throttle grip 1 is transmitted to the throttle valve 4 as it is.

When the set switch 13 is manually operated and a constant vehicle speed control command is issued, the control means operates to adjust the opening degree of the throttle valve 4, and constant vehicle speed traveling control is performed at an arbitrary vehicle speed. In this constant vehicle speed traveling control state, the sliding member 18 is held by the cable member 2 at the turning position corresponding to the opening degree of the throttle valve 4. Therefore, the throttle grip 1 can rotate independently of the forced opening / closing cable including the cable member 2 and the sliding member 18 arranged between the throttle grip 1 and the throttle valve 4. From this state, when the throttle grip 1 is rotated in the deceleration direction (direction of arrow A) in the drawing, the throttle grip 1 and the sliding member 18 are rotated.
Abut each other on the slopes of the protrusions 1c and 18c. Furthermore, when the throttle grip 1 is rotated with a force of a predetermined level or more, the sliding member 18 causes the throttle grip 1 to rotate.
A reaction force having the same strength as the navel force but opposite direction is applied. Since the rotational position of the sliding member 18 is held by the cable member 2, the sliding member 18 slides to the left in the drawing along the inclined surface against the biasing force of the biasing means 21 after the contact. Be moved,
The state shown in FIG. 3 is obtained. By this sliding, the sliding member 18 pushes the button of the release switch 15, and a release command is issued from the release switch 15 to the control circuit C which is the center of the control means. The control circuit C receives the cancellation command and cancels the constant vehicle speed traveling control.

Further, when the throttle grip 1 is rotated in the deceleration direction, the protrusion 1b engages with the protrusion 18b, and the sliding member 18 is rotated in the deceleration direction. With this rotation of the sliding member 18, the opening degree of the throttle valve 4 becomes smaller and the vehicle speed is reduced.

As described above, when the constant vehicle speed traveling control is released, the sliding member 18 again receives the turning force in the deceleration direction via the cable member 2, and this turning force and the biasing force of the biasing means 21 As a result, the engagement between the sliding member 18 and the throttle grip 1 returns to the state shown in FIG.

By the way, the force above the predetermined level may be a force sufficient to slide the sliding member 18 along the slopes of the projections 1c and 18c against the biasing force of the biasing means 21. In addition,
The throttle grip 1
If the included angle with the central axis direction of is less than 45 °,
The urging force of the urging means 21 can be reduced without reducing the force above a predetermined level required to rotate the throttle grip 1 to operate the release switch 15.

An embodiment using a leaf spring 28 in place of the biasing means 21 shown in FIGS. 2 and 3 is shown in FIG. Thus, it is preferable to use the leaf spring 28 as the urging means because the structure of the urging means becomes simple. The embodiment shown in FIG. 5 has the same structure as the embodiment shown in FIGS. 2 and 3, except that the biasing means is replaced by the leaf spring 28. As shown in FIG. 6, the leaf spring 28 is formed in an annular shape, and a plurality of contact portions 28a for contacting the sliding member 18 are provided.

Instead of the flange portion 1a and the biasing means 21 of the throttle grip 1 shown in FIGS. 2 and 3, a slip ring 30 is used.
And the seventh embodiment using the leaf spring 30a formed therein.
Shown in the figure. In this embodiment, as shown in FIG. 8, a slip ring 30 formed in a substantially annular shape is fitted on the throttle grip 1 and is formed by bending while extending from the outer peripheral portion of the slip ring 30. The tip end of the leaf spring 30a is inserted into the recess 18e formed on the outer surface of the sliding member 18, and when the throttle grip 1 moves to the right in the drawing, the projections 1b and 1c formed there are slip rings 30. The throttle grip 1 is prevented from falling to the right in the drawing by being locked to the right side of the drawing. In order to prevent the throttle grip 1 from falling off, it is desirable that a plurality of protrusions 1b and 1c are provided on the outer circumference of the throttle grip 1.

In this embodiment, the biasing means is replaced by the leaf spring 30a, and the flange portion 1a of the throttle grip is replaced by the slip ring 30, which has the same configuration as that of the embodiment shown in FIGS. 2 and 3. There is. With such a configuration, it becomes easy to keep the size of the handle switch housing 20 in the central axis direction of the handle grip 16 short.

Further, another embodiment is shown in FIG. 9, FIG. 10 and FIG. In the embodiment shown in FIG. 9, FIG. 2 and FIG.
Instead of the biasing means 21 shown in the figure, the biasing means is composed of a coil spring 31 wound around the handle pipe 16 and a pressing member 32 that receives the repulsive force and presses the sliding member 18 to the right in the drawing. The protrusion 32a is formed on the outer side of the pressing member 32 fitted onto the handle pipe 16 formed in a substantially cylindrical shape, and is brought into contact with the button of the switch 15. The other structure is the same as the structure shown in FIGS. 2 and 3, and the description thereof is omitted.

In the embodiment shown in FIG. 10, a disc spring 35 is used instead of the biasing means 21 shown in FIGS.
Other configurations are the same as the configurations shown in FIGS. 2 and 3, and the description thereof will be omitted.

In the embodiment shown in FIG. 11, locking projections 18f and 18g for locking the elastic wire 37 such as a piano wire wound around the sliding member 18 on the throttle valve 1 side of the sliding member 18 are the projections 18b. , 18c
The elastic wire 37 is provided so as to project in the radial direction except for the portion where is formed, and the end of the protrusion 1b of the throttle grip that dives under the elastic wire 37 that is wound around the sliding member 18.
A locking projection 1e that locks is formed so as to project in the radial direction.

The elastic wire 37 wound around the sliding member 18 is formed to have one open portion as shown in FIG. 12 showing the AA cross section of FIG.

In this embodiment, when the throttle grip 1 is rotated in the deceleration direction with a force of a predetermined level or more from the constant vehicle speed control state, the sliding member 18 slides to the left in the drawing along the slopes of the protrusions 1c and 18c. When the elastic wire 37 is moved, the elastic wire 37 bends due to its elasticity as shown in FIG. 11, and the repulsive force urges the sliding member 18 to the right in the drawing.
That is, in this embodiment, the elastic wire 37 is used instead of the biasing means shown in FIGS. The configuration other than the above is the same as the configuration shown in FIGS. 2 and 3, and therefore the description thereof is omitted.

In the above-described embodiment, the release switch 15 is operated when the throttle grip 1 is rotated in the deceleration direction by the torque of the predetermined level or more, but the protrusions 1b, 1c and 18b, 18c are By changing the pattern, the release switch 15 can be operated when the throttle grip 1 is rotated in the acceleration direction by a torque of a predetermined level or more.

In principle, it is also possible to provide a stress detecting means such as a strain gauge capable of detecting the torque in the throttle grip 1 and use it as the release switch 15 described above.

As described above, in the constant vehicle speed maintaining device for a motorcycle according to the present invention, by utilizing the fact that a reaction force is obtained from the forced opening / closing cable to the throttle valve to the throttle grip during constant vehicle speed traveling control, When the throttle grip is rotated relative to the sliding member adjacent thereto against this reaction force, the sliding member is moved by the action of the cam portion to activate the release switch for constant vehicle speed control. Therefore, it becomes possible to arrange the release switch near the throttle grip, and it is possible to bundle the wires extending from the release switch together with the wires extending from the other switch groups arranged near the throttle grip, Wiring work is easy and parts can be integrated in the radial direction of the throttle grip. The surroundings can be made compact.

[Brief description of drawings]

FIG. 1 is a system diagram of a constant vehicle speed holding device, FIG. 2 and FIG.
Fig. 4 is a cross-sectional view near the throttle grip, Fig. 4 is a view showing the handle switch housing, Fig. 5 is a cross-sectional view near the throttle grip, Fig. 6 is a view showing a leaf spring, and Fig. 7 is near the throttle grip. FIG. 8 is a sectional view showing a slip ring, FIGS. 9, 10, and 11 are sectional views near the throttle grip, and FIG. 12 is a sectional view.
FIG. 11 is a sectional view taken along the line AA in FIG. 11. Explanation of main part code 1 …… Throttle grip 2 …… Cable member 4 …… Throttle valve 10 …… Actuator 13 …… Set switch 15 …… Release switch 18 …… Sliding member 20 …… Handle switch housing 21 …… Biasing means 29 …… Wiring group 30 …… Slip ring 30a …… Leaf spring 35 …… Disc spring 37 …… Elastic wire

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiyuki Nakajima 1-4-1, Chuo, Wako-shi, Saitama Honda R & D Co., Ltd. (56) Bibliography No. 56-17576 No.) Microfilm (JP, U) filming the details and drawings attached to the application

Claims (2)

(57) [Claims] 1. A throttle valve opening is controlled between a constant vehicle speed control command and a release command by connecting to a forced opening / closing cable between a throttle valve arranged in an intake system of a motorcycle engine and a throttle grip. And a control means for performing constant vehicle speed control,
A constant vehicle speed holding device for a motorcycle including a set switch and a release switch for giving the constant vehicle speed control command and the release command to the control means, the device being provided adjacent to the throttle grip and holding the forcible opening / closing cable. Along with, a sliding member that can rotate around the axis of the throttle grip and can move in the axial direction, a cam portion that is provided in a region where the throttle grip and the sliding member face each other in the axial direction, and the sliding member. Urging means for urging a moving member toward the throttle grip, wherein the release switch is provided in the vicinity of the throttle grip so as to engage with the sliding member in the axial direction, The throttle grip is a predetermined lever that resists the pulling force of the forced opening / closing cable held by the sliding member. Constant rotational speed maintaining device for a motorcycle, wherein the sliding switch is moved to drive the release switch by relative rotation with the sliding member when a rotational force equal to or larger than a torque is applied. . 2. The constant vehicle speed maintaining device for a motorcycle according to claim 1, wherein the release switch is arranged in the handle switch housing together with the set switch.