JPH02266266A - Speed display holding device for motorbicycle - Google Patents

Abstract

PURPOSE:To prevent a speed display from being reset undesirably by turning on a neutral switch when a speed change gear is at its neutral position, and applying a voltage to a speed meter and holding this meter in a stop state. CONSTITUTION:When a meter stop SW3 is turned on during the travel of the motorbicycle (while a main switch SW2 is ON or OFF), the voltage of a battery 1 is applied to the speed meter 4, which is stopped while displaying the travel speed. Then when the travel is stopped and the speed change gear is switched to its neutral position, the neutral switch SW7 turns on associatively and the exciting coil 5a of a relay 5 is excited to make a contact 5b, so the voltage of the battery 1 is applied to the meter 4 directly. Therefore, even if the SW3 is turned off by mistake after the travel stop, the meter 4 is held in the stop state while displaying the travel speed and when the speed display is reset, the speed change gear is switched except to the neutral position or the SW2 is switched to its LOCK position.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for maintaining the traveling speed displayed on a speedometer of a motorcycle subject to speed violation control.

[Prior art] Conventionally, motorcycles used for speed enforcement operations are
It is equipped with a speedometer that displays the speed of speeding vehicles. This speed meter is connected to a battery power source via a meter stop switch, and when an enforcement officer turns on the meter stop switch while driving, the voltage of the battery power source is applied to the speed meter, and this speed meter measures the traveling speed. It is designed to be stopped in the displayed state.

[Problem to be solved by the invention]

However, this meter stop switch is located in a position that is easy to operate with your fingers while driving, so if your finger inadvertently touches the meter stop switch after the speedometer has stopped and the speed limit has been displayed, The meter stop switch was sometimes turned off. Then, since the application of battery voltage to the speedometer is canceled, the speed display on the speedometer is also canceled, causing a problem that the actual traveling speed cannot be determined.

The present invention was made based on these circumstances, and
Even if the meter stop switch is turned off after stopping the speedometer, the speed display will not be canceled, improving the reliability of the speed display and requiring special switch operations to maintain the speed display. To provide a speed display holding device for a motorcycle that is easy to operate without causing any problems.

[Means for Solving the Problems] Therefore, in the present invention, a speed meter that displays the running speed of a vehicle, a battery power source connected to this speed meter, and a battery power source interposed between the battery power source and the speed meter are provided. , a meter stop switch for applying voltage from the battery power supply to the speedometer to stop the speedometer and maintain the speed display when turned ON, and a meter stop switch that is turned ON when the transmission of the motorcycle is in the neutral position. ON when neutral switch or stand is in use position
At least one of the stand switches
The present invention is characterized by comprising a self-holding means for applying the voltage of the battery power source to the speedometer to keep the speedometer in the stopped state when the speed meter is in the stopped state.

[Function] According to this configuration, when the meter stop switch is turned on while the vehicle is running, battery voltage is applied to the speedometer, so the speedometer is stopped while displaying the running speed. Then, when the motorcycle is stopped and the transmission is switched to the neutral position or the stand is pulled out to the use position, the battery voltage is applied directly to the speedometer through the self-holding means, so that the battery voltage is applied directly to the speedometer after stopping the speedometer. Even when the meter stop switch is turned off, the speed meter remains in a stopped state displaying the above-mentioned traveling speed. Therefore, the speed display on the speedometer will not be canceled inadvertently, improving reliability.

In addition, the speedometer is automatically held in a stopped state by switching the transmission to the neutral position or pulling out the stand to the use position, so no special switch operation is required to maintain this stopped state. It doesn't take much time to operate.

[Example] A first example of the present invention will be described below based on FIG. 1.

A battery power source indicated by the symbol l in the figure is mounted on the body of the motorcycle. A positive output terminal of the battery power source 1 is connected to a positive output terminal of a speed meter 4 via a main switch 2 and a meter stop switch 3, and a negative output terminal of the speed meter 4 is grounded. Main switch 2 is ON.

It has three switching positions: OFF and LOCK for anti-theft purposes. This main switch 2 is ON and OFF.
F In either state, the voltage of the battery power supply 1 is applied to the meter stop switch 3, and the application of battery voltage to the meter stop switch 3 is canceled only when the vehicle is switched to the LOCK position, which disables running. Ru.

Also, meter stop switch 3 is ON.

The meter stop switch 3 is equipped with two switching positions, OFF and OFF, and when the main switch 2 is ON or OFF, that is, when the motorcycle can run, the meter stop switch 3
When turned ON, the battery 71f pressure is applied to the speedometer 4, and the speedometer 4 is stopped while displaying the traveling speed.

Further, one end of an excitation coil 5a of a relay 5 is connected to the positive output end of the speedometer 4.
The other end of a is grounded via a forward diode 6 and a neutral switch 7. The neutral switch 7 is turned on when the transmission of the motorcycle is switched to the neutral position in conjunction with this switching operation. At the interconnection point between diode 6 and neutral switch 7,
A neutral lamp 9 is connected through a diode 8 for preventing backflow, and this neutral lamp 9 is turned on when the neutral switch 7 is turned on.

Further, the positive output end of the speed meter 4 is connected to an interconnection point between the main switch 2 and the meter stop switch 3 via the contact 5b of the relay 5.

Next, the operation of the above configuration will be explained.

When the meter stop switch 3 is turned on while tracking a speeding vehicle, battery voltage is applied to the speedometer 4, and the speedometer 4 is stopped while displaying the traveling speed. Then, when the speeding vehicle is stopped and the transmission is switched to the neutral position, the neutral switch 7 is turned on in conjunction with this, and the excitation coil 5a of the relay 5 is excited. Then, contact 5b of relay 5
is closed, so the battery voltage is applied directly to the speedometer 4 without passing through the meter stop switch 3.

Therefore, even if the meter stop switch 3 is accidentally turned OFF after stopping a speeding vehicle, for example, battery voltage will continue to be applied to the speedometer 4 via the relay 5, so the speedometer 4 will Since the vehicle is kept in a stopped state with the traveling speed displayed, the speed display will not be canceled undesirably.

That is, to cancel the speed display, either switch the main switch 2 to the LOCK position to cut off the application of battery voltage to the speedometer 4, or turn off the meter stop switch 3 and set the transmission to neutral. This requires a conscious action such as switching to a position other than the current position, and it is rare to perform this type of action after stopping a speeding vehicle, so erroneous operations such as undesired cancellation of the speed display may occur. There will be no.

Therefore, the reliability of the speed display is significantly improved, which is advantageous in the case of speeding violations.

Moreover, since the contact point 5b of the relay 5 is closed in conjunction with the operation to switch the transmission to the neutral position, there is no need to add a special switch operation to maintain the speed meter 4 in the stopped state, making the operation complicated. You don't have to. Therefore, speed enforcement can be carried out in the same way as before.

In the first embodiment, the speed meter 4 is connected to the interconnection point between the main switch 2 and the meter stop switch 3 via the contact 5b of the relay 5, but the present invention is not limited to this. As shown by the imaginary line, the contact 5b may be directly connected to the positive output terminal of the battery power supply l.

In this configuration, the speed display on the speedometer 4 is canceled when the transmission is switched to a position other than neutral and the neutral switch 7 is turned off, that is, when preparations for starting are completed.

On the other hand, FIG. 2 shows a second embodiment of the present invention.

This second embodiment is the neutral switch 7 of the first embodiment.
Instead, a stand switch 11 is provided which is turned on when the side stand is pulled out to the use position.
When this stand switch 11 is turned on, the excitation coil 5a of the relay 5 is excited. Therefore, since the contact 5b of the relay 5 is closed, the battery voltage is applied directly to the speed meter 4 without passing through the meter stop switch 3.

Therefore, as in the first embodiment, even if the meter stop switch 3 is accidentally turned OFF, the battery voltage continues to be applied to the speedometer 4 via the relay 5, so that the speedometer 4 is able to control the speed at which the vehicle is running at the above-mentioned speed. This means that the speed display will not be canceled undesirably.

Furthermore, in this configuration, since there are no lamps that are turned on depending on the position of the side stand, there is no need for a diode for preventing backflow, which has the advantage of simplifying the circuit configuration.

Further, FIG. 3 shows a third embodiment of the present invention.

This third embodiment is a combination of the two embodiments described above, and the other end of the excitation coil 5a of the relay 5 is grounded via the stand switch 11, and the stand switch II and the excitation coil 5b are connected. A series circuit of a forward diode 6 and a neutral switch 7 is connected in series to the point.

According to this configuration, when stopping the zero-motion motorcycle,
Be sure to switch the transmission to neutral and use the side stand, so either switch 7.11
Even if the relay 5 fails, the contact 5b of the relay 5 will be closed. Therefore, the battery voltage can be reliably applied to the speedometer 4, and the reliability of speed display is further improved.

In the above embodiment, a relay was used for the self-holding circuit of the speedometer, but a self-holding circuit composed of transistors may be used instead of this relay. In this case, the self-holding circuit is built into the speedometer. It becomes possible to do so.

[Effects of the Invention] According to the present invention detailed above, even if the meter stop switch is accidentally turned off after stopping the speedometer, the speedometer is maintained in the stopped state displaying the traveling speed. The speed display on the speedometer will not be canceled inadvertently, improving reliability.

In addition, the speedometer is automatically held in a stopped state by switching the transmission to the neutral position or pulling out the stand to the use position, so no special switch operation is required to maintain this stopped state. In terms of operability, there is no problem with the number of ships.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram showing a first embodiment of the invention, FIG. 2 is a circuit diagram showing a second embodiment of the invention, and FIG. 3 is a circuit diagram showing a second embodiment of the invention.
FIG. 3 is a circuit diagram showing a third embodiment. l... Battery power supply, 3... Meter stop switch, 4... Speed meter, 5... Relay, 7... Neutral switch, 11... Stand switch. Applicant's Representative Patent Attorney Takehiko Suzue Figure 2 1...Heat Teso Electric 5 Gen 3...Meter Stop 7°Swi, Tuna 4...Return Meter 7 5...Rishi- 7...Second Knee Upper Urusui tuna Fig. 1 Fig. 3

Claims (1)

[Claims] A speedometer that displays the running speed of the vehicle; a battery power source connected to the speed meter; and a battery power source that is interposed between the battery power source and the speed meter, and that controls the voltage of the battery power source by turning on the speed meter. A meter stop switch that applies voltage to the speed meter to stop the speed meter and maintain the speed display, and a meter stop switch that is turned on when the motorcycle's transmission is in the neutral position.
When at least one of the neutral switch that is turned on or the stand switch that is turned on when the stand is in the use position is ON, the voltage of the battery power supply is applied to the speedometer to maintain the speedometer in the stopped state. 1. A speed display holding device for a motorcycle, comprising: means.