JPH0121049Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a vehicle throttle lever mounting structure suitable for application to an all-terrain vehicle.

Recently, four-wheeled vehicles or three-wheeled vehicles have been developed whose main purpose is to travel on rough terrain. Although the tires and suspension of such vehicles are designed to prevent the vibrations caused by uneven surfaces from being transmitted to the vehicle body, the vibrations that are applied to the occupants when actually driving on rough terrain are This is considerably larger than when a vehicle whose main purpose is to drive on asphalt roads. Further, in such vehicles, the occupant is usually firmly fixed to the seat with a belt. Therefore, in the case of a vehicle for traveling on rough terrain, it is advantageous in terms of operability to operate the slot by hand rather than by foot.

Conventionally, as a vehicle for traveling on rough terrain in which the throttle is operated by hand, there is a vehicle in which a throttle lever is swingably disposed below a grip of a steering handle along the grip. When operating the throttle with such a structure, the throttle lever is grasped integrally with the grip portion, and the rotation of the throttle lever is adjusted in this state.

However, with such a structure, the operator is required to operate the vehicle while holding both the steering handle grip and the throttle lever together as described above.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a throttle lever mounting structure for a vehicle that allows throttle operation and steering wheel operation to be performed easily and reliably.

The feature of this invention is that the throttle lever is swingably disposed in the space formed between the base, which is the center of rotation of the steering handle, and the grips disposed on both sides of this base. The main feature is that the throttle can be operated using the thumb while holding the handle with both the left and right hands.

An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

Fig. 1 shows the entirety of a four-wheeled vehicle for traveling on rough terrain, in which reference numeral 1 is the body frame, 2 is the front wheel, 3 is the rear wheel, 4 is a bucket-shaped seat equipped with a belt 4a for securing the occupant, 5 1 is a cover frame that covers the upper part of the occupant; 6 is a steering column extending rearward and upward from the center of the front of the vehicle toward the seat 4; 7 is a steering shaft rotatably inserted into the steering column 6; 8 is a steering shaft 7. A steering handle attached to the upper end of the wheel allows the front wheel 2 to be directed in any direction without rotating it more than one turn. The front wheel 2
The rear wheels 3 are equipped with low-pressure tires that have low internal pressure and a large contact area with the ground.

The steering handle 7 and its attached parts will be explained in detail as shown in FIGS. 2 and 3.
In the figure, reference numeral 9 denotes an annular handle body formed into a substantially rectangular shape as a whole, and the handle body 9 is composed of a base 10 fixed to the upper end of the steering shaft 7 and a shaft storage portion 11 extending on both sides of the front end of the base 10. A substantially T-shaped hollow base 12 and a shaft storage portion 11 of this base 12 are located diagonally rearward (second
Both the left and right grip parts 13 and 14 extend downward (in the figure) and are arranged with a space between them and the base 10, and the rear ends of the grip parts 13 and 14 and the rear end of the base 12 are connected to each other. It is composed of connecting reinforcing parts 15 and 16 that connect together.

In a space 17 formed between the base 10 of the handle body 9 and the right grip part 14, a throttle lever 18 has one end pivotally supported by the steering handle 7 and an operating part provided at the other end on the steering shaft side. (downward). A concavo-convex portion 19 is formed on the top surface of the trapezoidal operating section formed at the tip of the throttle lever 18, so that the thumb does not slip when pressing the top surface of the operating section with the thumb. Further, the operating portion of the throttle lever 18 is arranged such that the distance from the grip portion 14 is within the length of a person's thumb, and the upper surface of the operating portion of the throttle lever 18 is in a non-operating state when the grip portion 14 It is located at approximately the same position as the top surface of the
Further, a shaft 20 is fixed to the base end of the throttle lever 18 so as to be perpendicular to the throttle lever 18, and this shaft 20 is arranged perpendicularly to the steering shaft 7, and is attached to a base as shown in FIG. It is rotatably supported by a bearing part 21 formed integrally with 12. Further, an arm 2 is disposed on the outer circumference of the shaft 20 so as to be perpendicular to the shaft 20.
The proximal end side of the shaft 20 is fixed with a screw while sandwiching the shaft 20 from above and below. As shown in FIG. 5, one end of a throttle wire 23 is rotatably connected to the tip of the arm 22 via a cylindrical connecting member 24. As shown in FIG. This arm 2 is attached to the outer periphery of arm 22.
2 in the direction of arrow A in FIG.
5 is attached. In FIG. 5, 26 is a screw for adjusting the tension of the throttle wire 23, and 27 is a stopper for determining the rotation limit position of the arm in the direction of arrow A.

Further, as shown in FIGS. 2 and 3, a brake lever 31 is swingably disposed below the left grip portion 13 of the handle body 9. A shaft 32 is attached to the base end of the brake lever 31 so as to be perpendicular to the lever 31, and this shaft 32 is rotatably stored in the shaft storage portion 11 of the base 12. At the tip of the shaft 32, the base end side of an arm 33 arranged perpendicularly to the shaft 32 is connected to the shaft 32.
It is held in place by screws from above and below. A brake cable 34 is attached to the tip of the arm 33.
One end of the brake cable 34 is rotatably connected via a cylindrical connecting member 35, and the other end of the brake cable 34 is connected to a braking mechanism such as a drum brake that brakes the rear wheel 3. Further, a brake lever 41 is swingably disposed below the right grip portion 14 of the handle body 9. A shaft 42 is attached to the base end of the brake lever 41 so as to be perpendicular to the lever 41, and this shaft 42 is connected to the base 12.
It is rotatably housed in the shaft housing part 11 of.
The base end side of an arm 43 perpendicular to the shaft 42 is fixed to the distal end of the shaft 42 with a screw, with the arm 43 sandwiching the shaft 42 from above and below. One end of a brake cable 44 is rotatably connected to the tip of the arm 43 via a cylindrical connecting member 45, and the other end of this brake cable 44 is connected to a braking mechanism such as a drum brake that brakes the front wheel 2. connected. In addition,
In FIG. 3, 51 is a lid screwed onto the top of the base 12 of the handle body 9, and 52 and 53 are the grip portion 1.
a non-slip member fitted to the outer periphery of 3 and 14;
4 is bushy.

Next, the operation of the above-configured steering handle and its attached parts will be explained. When operating the steering wheel using the above-mentioned steering wheel, the occupant holds the grip portions 13 and 14 with his left and right hands, respectively, and operates the steering wheel 8 with his body fixed to the bucket seat 4 by the seat belt 4a. The front wheels 2 are rotated by a predetermined angle in the directions of arrows C and D in FIG. 2, and the front wheels 2 are directed in any direction via the steering shaft 7 and the steering mechanism connected to the lower end of the steering shaft 7.

On the other hand, when operating the throttle, the user presses the throttle lever 18 with the thumb of the right hand while holding the grips 13 and 14 with the left and right hands. That is, when increasing the throttle opening degree, the throttle lever 18 is strongly pushed with the thumb of the right hand and rotated in the direction of arrow B in FIG. Then, the shaft 20 fixed to the throttle lever 18 and the arm 22 fixed to the same shaft 20 rotate in the direction of arrow B against the biasing force of the spring 25, as shown by the two-dot chain line in the figure. Accordingly, one end of the throttle wire 23 connected to the tip of the arm 22 moves upward to increase the opening degree of the throttle valve.

On the other hand, when reducing the throttle opening,
Relax your finger pressure. Then the throttle lever 1
8 and arm 22 rotate in the direction of arrow A in FIG.
3 is the direction in which the throttle valve is closed (bottom in Figure 5)
, and reduce the opening of the throttle valve.

Thus, with the above-mentioned throttle lever mounting structure, the occupant can hold the grip portions 13 and 1 with both hands.
The throttle can be operated with the thumb of the right hand while holding the handlebar 4, and the handle and throttle can be operated easily and reliably.

In addition, when braking the vehicle using the brake levers configured as described above, both the left and right brake levers 31,
41 with left and right fingers to rotate these brake levers 31, 41 in the direction of arrow E in FIG. Then, the shafts 32, 42 and the arms 33, 4
3 rotate in the same direction, and the arms 33, 43
Brake wires 34, 4 connected to the tips of
One end of the brake wire 4 is pulled upward, and each braking mechanism connected to the other end of the brake wires 34, 44 is actuated to brake the front wheel 2 and the rear wheel 3.

In the above embodiment, the throttle lever 1
Although the throttle lever 8 is disposed so as to be swingable in the direction perpendicular to the grip parts 13 and 14, the throttle lever 18 is disposed so as to be swingable in the direction in which the grip parts 13 and 14 extend. It's okay.

Further, in the above embodiment, the throttle lever 1
8 is disposed in the right space portion 17 of the base 10, but the throttle lever 18 is not limited thereto.
may be arranged in the left space of the base 10 and operated with the thumb of the left hand.

Furthermore, the present invention is not limited to four-wheeled vehicles, but can also be applied to three-wheeled vehicles.

As explained above, according to the present invention, the throttle lever is swingably disposed in one of the left and right spaces formed between the base of the steering handle and the left and right grips, and The operating section of the throttle lever is arranged such that the distance from the grip section is within the distance of a person's thumb, and the upper surface of the operating section of the throttle lever is
Since it is disposed approximately at the same position as the top surface of the grip part in the non-operating state, the occupant can operate the throttle with either thumb while holding each grip part with both left and right hands. , the throttle and handle operations can be performed reliably over a long period of time.

In addition, the throttle lever can be operated by grasping the grip with your fingers other than the thumb or the palm of your hand.
The hand that operates the lever itself can be fixed to a certain extent, allowing for the delicate adjustments required for throttle operation.

[Brief explanation of the drawing]

1 to 5 show an embodiment of the present invention, in which FIG. 1 is an overall perspective view of a four-wheeled vehicle for traveling on rough terrain, FIG. 2 is a partially cutaway plan view of a steering handle and its attached parts, 3 is an exploded perspective view thereof, FIG. 4 is a cross-sectional view taken along the line -- in FIG. 2, and FIG. 5 is a cross-sectional view taken along the line -- in FIG. 2. DESCRIPTION OF SYMBOLS 1...Vehicle frame, 4...Seat, 6...Steering column, 7...Steering shaft, 8...Steering handle, 9...Handle body, 10...Base, 12...Base, 13,1
4...Grip part, 17...Space part, 18...
Throttle lever, 20...shaft, 23...throttle wire.

Claims (1)

[Scope of utility model registration request] In a vehicle equipped with a steering handle including a base attached to the upper end of the steering shaft at the center of a substantially rectangular annular body, and rod-shaped grips on both sides of the annular body, the base and the left and right grips are connected to each other. A throttle lever has one end pivotally supported by the steering handle, and an operating part provided at the other end thereof, which is swingably disposed toward the steering shaft. the operating part of the throttle lever is arranged such that the distance from the grip part is within the distance of a person's thumb, and
A throttle lever mounting structure for a vehicle, characterized in that the upper surface of the operating section of the throttle lever is disposed at approximately the same position as the upper surface of the grip section in a non-operating state.