JP3319682B2 - Accelerator device for electric vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an accelerator device for an electric vehicle, and more particularly to an accelerator device for an electric vehicle capable of suddenly stopping the electric vehicle in an emergency.

[0002]

2. Description of the Related Art A conventional electric vehicle generally has a form as shown in FIG. 8, and an accelerator device a for steering is provided in front of a seat b. The details of the accelerator device a are shown in a perspective view in FIG. 9 and a plan view in FIG. 10. Each of the accelerator devices a grasps a grip d of a U-shaped handlebar c, and an accelerator lever e in front thereof.
There is one that pushes down to adjust the speed.

[0003] In the type shown in the perspective views of Figs. 11 and 12, there is a type in which a grip d is gripped and an accelerator lever e is gripped as shown in Fig. 13 to adjust the speed. Further, as a type in which the emergency brake is applied by squeezing the accelerator lever e, see Japanese Utility Model Laid-Open No. 3-16.
566, JP-A-4-51932, JP-A-4
JP-A-252788, JP-A-4-244701, JP-A-4-308401, JP-A-5-117
02, JP-A-5-338475, JP-A-5-338475
JP-A-338476, JP-A-6-351110 and the like are known.

[0004]

Normally, in order to stop the running electric vehicle, either the operation of releasing the accelerator lever e or applying the manual brake f as shown in FIG. Must be done.

[0005] However, since the manual brake f is provided at a position farther than the grip d, there is a problem that it takes a long time to grip. The accelerator lever e should be released in an emergency, but conversely. May be squeezed.

On the other hand, the aforementioned Japanese Utility Model Application Laid-Open Publication No. H10 (1995) -4, in which an emergency stop can be performed by squeezing the accelerator lever.
In the techniques disclosed in Japanese Patent Application Laid-Open Nos. 51932 and 5-11702, the normal accelerator operation and the movement of the emergency stop lever are in the same direction. Also, if the elastic body is strong, it is difficult to make an emergency stop. In addition, there is a problem that it is difficult to adjust the grip strength because different people have different grip strengths.

[0007]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an accelerator device capable of operating an accelerator lever during an ordinary operation and an emergency stop of an electric vehicle without error. An accelerator lever provided in parallel with a grip shaft of a handlebar is rotatable in a circumferential direction of the grip shaft, and is bendable in a radial direction of the grip shaft, so that the vehicle is rotated when the accelerator lever rotates in a circumferential direction. Is in a traveling state, and the manner of operation is changed so that the vehicle is in an emergency stop state when bent in the axial direction.

That is, the accelerator lever is separated into a support portion formed of a straight portion and a bent portion, and an operation portion formed in a straight line, and the operation portion is attached to an end of the bent portion of the support portion. A pivot switch is provided at a right angle to the support portion, and the end portion is provided with a limit switch that is turned on when the operation portion is bent and turned toward the support portion to stop the vehicle traveling, and a linear portion of the support portion. In a switch box, and a gear meshing with an accelerator volume gear for running the vehicle is fixed in the middle of the linear portion. In claim 2, the accelerator lever is flexibly mounted on a rotating portion rotatably fitted to an extended portion of the grip shaft, and a limit switch that is turned ON when the accelerator portion comes into contact with the accelerator lever is provided on the rotating portion. By transmitting a rotation operation of an accelerator lever to an accelerator volume for vehicle travel via an inner cable in the accelerator cable, the accelerator volume can be installed at any position other than the switch box. Claim 3
Is that the accelerator lever is provided with an inner cable passing through a brake cable provided on the rotation shaft side.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An accelerator device for an electric vehicle according to the present invention will be described with reference to the following embodiments shown in the drawings.

FIGS. 1 to 4 show an embodiment of the present invention. In FIG. 1, an accelerator lever is provided near a grip shaft 2 of a handlebar 1.

The accelerator lever A comprises a support portion 3 formed by a straight portion 3a and a bent portion 3b, and an operation portion 4 formed in a straight line. The end of the bent portion 3b of the support portion 3 is pivotally supported by a pin 5 so as to be parallel to the end as shown in FIG. Operation part 4 and bending part 3
b is always attached to the torsion spring 6 so as to be at a right angle to each other, and the limit switch 7 which is turned on when the operation portion 4 is bent toward the support portion 3 is brought into a non-contact state at the bent portion 3b. Is provided. Limit switch 7
Is connected to the motor drive circuit (not shown)
And the motor stops, and turns off when the motor is turned off.

The linear portion 3a of the support portion 3 is rotatably supported on the switch box 8 about the axis thereof in the switch box 8. Between the linear portion 3a, a gear 10 on the side of an accelerator volume 9 for running the vehicle is provided. The meshing support portion gear 11 is fixed. Thus, the operation unit 4 is rotatable around the grip shaft 2. The accelerator volume 9 is connected to a main controller (not shown).

Next, the operation will be described. As shown in FIG. 3, the operator places his / her finger on the grip shaft 2 during normal running, and then puts his / her finger on the operation unit 4 to push down the operation unit 4 in the arrow direction.

Accordingly, since the operation unit 4 rotates around the grip shaft 2, the movement of the support unit 3 is transmitted from the support unit gear 11 to the gear 10 on the accelerator volume 9 side, and the main controller is operated to perform normal traveling. Will be At this time, if the finger is released from the operation unit 4, the accelerator volume 9 returns to the original position, and the vehicle stops.

On the other hand, in the case of an emergency stop during traveling, when the operating section 4 is pulled forward as shown by an arrow in FIG. 4, the operating section 4 rotates about the pin 5 with respect to the bent portion 3b. The limit switch 7 comes into contact and is turned ON because it is bent in the direction, thereby stopping the motor and stopping the vehicle.

As described above, since the direction of operation of the accelerator lever A at the time of the normal accelerator operation and the emergency stop is different, there is no possibility of accidental stop during traveling.

The structure of the switch box 8 is simplified since the accelerator lever A constituted by the support portion 3 and the operation portion 4 has an emergency stop mechanism.

FIGS. 5 and 6 show the case of the second aspect of the present invention, in which a rotating portion 23 is rotatably fitted to an extended portion 22a of a grip shaft 22 of a handlebar 21. As shown in FIG. 1, an accelerator lever A 'is pivotally supported at its base end by a pin 25 on one side 23a so as to be parallel to the grip shaft 22.

An accelerator lever A 'is provided around the axis of the pin 25.
A torsion spring 26 is attached between the rotating part 23 and the one side 23a of the rotating part 23 so that the accelerator lever A 'is always in contact with the one side 23a of the rotating part 23 and is kept parallel to the grip shaft 22. As a result, the accelerator lever A 'is connected to the grip shaft 2
It is rotatable around 2.

A limit switch 27 which is turned on by contacting the accelerator lever A 'is provided on one side 23a of the rotating portion 23 in a constant contact state.

When the limit switch 27 is ON, the motor rotates, and when the limit switch 27 is OFF, the motor stops.

The other side 23b of the rotating part 23 is provided in a space surrounded by an upper case 28a and an under case 28b, and the two cases 28a and 28b are
It is fixed by.

An accelerator cable 30 is provided at the bottom of the under case 24b in a hanging state, and the lower end of the accelerator cable 30 is connected to a case on the side of an accelerator volume 31 for running the vehicle. Also, the other side 23b of the rotating part 23
Is connected to a pulley 33 of an accelerator volume 31 through an accelerator cable 30 from the bottom of the under case 28b. Therefore, when the rotating part 23 rotates, the tip of the inner cable 32 rotates the pulley 33 to operate the accelerator volume 31.

A manual brake 34 is provided on the front side of the handlebar 21 as necessary. The hand brake 34 is connected to a brake cable 36 provided on a support portion 35, and when the brake cable 36 is pulled, the wheels of the vehicle are forcibly applied. Braking in a dynamic way.

In FIG. 5, reference numeral 37 denotes a switch box.
5 and FIG. 6, the connection portion at the other end (not shown) of the cable is similar to that of FIG. 1, and the description of this portion is omitted.

Next, the operation will be described. In the normal accelerator operation, when the accelerator lever A 'is depressed as shown in FIG. 3 described above, the rotating part 23 rotates around the grip shaft 22 and pulls the inner cable 32 in the accelerator cable 30 so that the accelerator volume 31 To rotate. As a result, the vehicle runs.

When the driver wants to make an emergency stop during traveling, when the accelerator lever A 'is squeezed and folded as shown in FIG. 4, the accelerator lever A' comes into contact with the limit switch 27. OF
F, the motor stops, and the vehicle stops. Also in this case, the direction of the operation of the accelerator lever at the time of the normal accelerator operation and the operation of the accelerator lever at the time of emergency stop are different, so that there is no accidental stop during traveling.

Also, all the accelerator devices are handlebars 21.
The accelerator volume 31 can be mounted anywhere on the vehicle body by the accelerator cable 30, so that the structure of the switch box 37 is simplified.

FIG. 7 shows the case of the invention according to claim 3, wherein the same accelerator device as in FIG. 5 is directly attached to the handlebar 41 without extending the handlebar 21 as shown in FIG. Rotary shaft 2 on accelerator lever A 'of the device
5 is different from the case of FIG. 5 in that an inner cable 43 passing through the inside of the brake cable 42 provided in 3 is provided. Therefore, the same parts as those in FIG. 5 are denoted by the same reference numerals as in FIGS. 5 and 6, and the description thereof will be omitted. Only different parts will be described.

Thus, the operation of the accelerator and the emergency stop during traveling are the same as in the case of the third aspect. In particular, in the case of an emergency stop, when the accelerator lever A 'is depressed, the limit switch 27 is turned off and the motor stops. At the same time, the wheels are braked by the brake cable 42 and the vehicle stops.

The accelerator lever A 'can be used, for example, as a parking brake, similarly to the manual brake 34 shown in FIG. 5, even when the accelerator lever A' is not operated. In this case, since the manual brake 34 is not required, a bar-type handle bar 41 can be used as shown in FIG.

The invention according to claim 3 can be applied to the case of FIG. 1 by changing the accelerator lever to the operating portion and the rotating portion to the supporting portion.

[0033]

Since the present invention is constructed as described above, the following effects can be obtained. 1) Since the operation method of the accelerator lever at the time of normal running and at the time of emergency stop are different, there is no possibility of accidentally stopping during running. 2) Since the emergency stop means is provided on the accelerator lever, the structure of the switch box is simplified. 3) Particularly in the case of claim 2, since the operation is performed using the accelerator cable, the accelerator volume can be mounted anywhere on the vehicle body. 4) According to the third aspect, since the accelerator lever also serves as a manual brake, no manual brake is required. Further, a parking brake, a brake operation when the clutch is off, and the like can be performed by the accelerator lever. 5) Since one bar handle type can be used as a whole, the cost is reduced.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of an accelerator device for an electric vehicle according to claim 1 of the present invention.

FIG. 2 is a detailed view of a part of FIG. 1;

FIG. 3 is an explanatory diagram of how to move an accelerator lever in a case of normal running in FIG. 1;

FIG. 4 is an explanatory diagram of how to move an accelerator lever in an emergency stop in FIG. 1;

FIG. 5 is a plan view showing an embodiment of an accelerator device for an electric vehicle according to claim 2 of the present invention.

FIG. 6 is a sectional view taken along line AA of FIG. 5;

FIG. 7 is a plan view showing an embodiment of an accelerator device for an electric vehicle according to claim 3 of the present invention.

FIG. 8 is an external perspective view of a conventional electric vehicle.

FIG. 9 is a perspective view of a first example of a conventional accelerator device for an electric vehicle.

FIG. 10 is a plan view of a second example of a conventional accelerator device for an electric vehicle.

FIG. 11 is a perspective view of a third example of a conventional accelerator device for an electric vehicle.

FIG. 12 is a perspective view of a fourth example of a conventional accelerator device for an electric vehicle.

FIG. 13 is an explanatory diagram of how to move an accelerator lever in the case of speed adjustment of the type shown in FIGS.

FIG. 14 is a perspective view of a fifth example (manual brake type) of a conventional accelerator device for an electric vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Handlebar 2 Grip shaft 3 Accelerator lever (support part) 3a Linear part 3b Bend part 4 Bend part (operation part) 5 pin 7 Limit switch 9 Accelerator volume 10 Gear 11 Gear 22 Grip shaft 22a Extension part 23 Rotating part 25 pin 27 limit switch 30 accelerator cable 31 accelerator volume 32 inner cable 37 switch box 42 brake cable 43 inner cable A, A 'accelerator lever

Continuation of the front page (56) References JP-A-4-252788 (JP, A) JP-A-4-244701 (JP, A) JP-A-4-308401 (JP, A) JP-A-5-338475 (JP) JP-A-5-338476 (JP, A) JP-A-6-351110 (JP, A) JP-A-2-46106 (JP, A) JP-A-58-1222757 (JP, A) 7-180574 (JP, A) Japanese Utility Model Showa 61-5295 (JP, U) Japanese Utility Model Showa 61-67033 (JP, U) JP-B 43-17539 (JP, B1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B60K 26/00-26/04 A61G 5/04 502 B60L 15/00-15/38

Claims (3)

(57) [Claims] An operating portion of an accelerator lever is rotatably supported by an axis parallel to an axis of a grip shaft of a handlebar in a circumferential direction of an outer periphery of the grip shaft, and a shaft diameter of the grip shaft. In the direction of the accelerator lever.
The accelerator is turned in the circumferential direction of the grip shaft, the vehicle is in a running state, and when the vehicle is bent and rotated in the shaft radial direction, the vehicle is brought to an emergency stop. And a support portion formed of a bent portion and an operating portion formed in a straight line, and the operating portion is pivotally supported in a direction perpendicular to an end of the bent portion of the support portion. At the end, a contact switch is turned on when the operation section is bent and turned toward the support section side, and a limit switch for stopping the vehicle is provided, and the straight section of the support section is provided in a switch box and the straight section is provided. An accelerator device for an electric vehicle, wherein a gear that meshes with an accelerator volume gear for driving the vehicle is fixed in the middle of the accelerator device. And a limit switch that is turned on when the accelerator lever comes into contact with an accelerator lever, said accelerator lever being rotatably mounted on a rotating portion rotatably fitted to an extended portion of said grip shaft. 2. The electric motor according to claim 1, wherein the rotation of the accelerator lever is transmitted to an accelerator volume for traveling the vehicle via an inner cable in the accelerator cable, so that the accelerator volume can be installed at any position other than the switch box. The accelerator device of the vehicle. 3. An accelerator device for an electric vehicle according to claim 1, wherein said accelerator lever is provided with an inner cable passing through a brake cable provided on said rotating shaft side.