JPS6022542A - Turn signal flasher - Google Patents

Abstract

PURPOSE:To permit certain and automatic return of a turn signal flasher by counting the traveling distance of a car after the trun signal flasher is opereated. CONSTITUTION:The right and left turning switches 1 and 2 for turn signal flasher close contacts only during the time when the switches are pressed, and said contacts are opened when the switches are released. When the switch 1 is pressed, the transformation to the signal which is kept at high level only during one cycle of an oscillator 9 from the moment when the contact in a one-shot circuit 3 is closed is performd, and a lamp 16 is turned ON by a latch circuit 5 set by the high level output of the one-shot circuit 3 and the output of an AND gate 14 into which the output of a frequency divider 10 is supplied. When a counter 8 which counts the signals which are formed by detecting the revolution of a wheel by a photointerrupter counts a certain velue, the output of the counter 8 is set to a high level, and the latch circuit 5 is reset through an OR gate 11, and the lamp 16 is turned OFF.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a direction indicating device with automatic return functionality suitable for example for motorcycles.

In the case of a motor vehicle, the change in direction follows a rotation angle of one dollar, so that the automatic return of the direction indicator is carried out by returning the switch lever to the neutral position by means of a cam mechanism provided on the steering wheel.

However, in the case of a motorcycle, direction change is performed not only by steering wheel operations, but also by tilting the vehicle body, and therefore, there are no or very few steering wheel operations. For this reason, structures such as automobiles in which a cam mechanism is provided on the steering wheel to automatically return the direction indicator will operate unreliably. For this reason, motorcycles are not equipped with automatic turn signal return devices. In recent years, motorbikes have become a problem due to an increase in fatal accidents due to the popularity of family bikes. However, once the turn signals on current motorcycles are turned on, they remain on until the switch is turned off, making it easy to forget to turn them off. This can lead to misunderstandings for vehicles following, which can lead to accidents.

In view of the above points, the present invention relates to an automatic return device for a direction indicator that operates reliably not only in automobiles but also in motorcycles.

In the present invention, the direction indicator detects the distance traveled by the vehicle and is automatically reset.

Further, the direction indicating device of the present invention is composed of an all-electronic circuit,
Reliability is improved compared to the conventional mechanical type that uses a cam mechanism.

FIG. 1 shows a block diagram of an embodiment of a direction indicating device according to the present invention.

The direction indicator lighting switch 1 is for turning right, and the switch 2 is for turning left. Switches 1 and 2 are normally-off type push-button switches; the contacts close only while the switch is pressed, and the contacts open when the pressure is released. In circuit 3, the contact is idle.
S, the signal is converted into a signal that is at a high level for only one cycle of the oscillator 9 from the instant. The output of the one-shot circuit 3 is supplied to the cell F terminal of the latch circuit 5, and the latch circuit 5 is set by the Higb level output of the one-shot circuit 3. Therefore, one input terminal of the AND gate 14 has a Hi
A gb level signal is supplied. The output of a frequency divider 10 that divides the output of the oscillator 9 is supplied to the other input terminal of the AND-DATE 14. Therefore, the output frequency signal of the frequency divider 19 is obtained at the output of the AND-DATE 14. Then, the lamp 16 starts lighting.

At this time, the output of the one-shot circuit 3 is applied to the reset terminal of the latch circuit 6 via the OART 12, and the latch circuit 6 is reset.

The output of the latch circuit 5 is applied to the Nant gate 13,
Therefore, when the output of the latch circuit 5 becomes the HiFiI+ level, the output of the NAND date 13 becomes the 1-g1ll level, and the reset signal for the counter 8 disappears. counter 8
is the driving of moving objects such as motorcycles and cars III! The signal obtained from the converter 7 which converts the signal obtained according to the distance into a pulse signal is counted. That is, for example, a signal detected by a 7-o-1 interrupter that detects the rotation of a wheel is counted.

When the counter 8 counts a certain value, the output of the counter 8 becomes High level, which causes the latch circuit 5 to become recurrent through the OR gate 11 and turns off the lamp 16. When the switch 2 is pressed, the one-shot circuit 4, latch circuit 6, and date 15 operate in the same manner, causing the lamp 17 to blink, and after counting a certain distance signal, is turned off.

According to traffic regulations, when making a right or left turn, you are required to flash your turn signal 30 meters before an intersection, and when changing lanes, you are required to flash your turn signal 3 seconds before the intersection. If you drive at 3OKI11 and turn on the lights 3 seconds before changing lanes, the turn signals will automatically turn off after you have driven 5m after turning the intersection.

In the case of Fig. 1, the latch circuits 5 and 6 are reset-priority type, so if you want to turn off the blinking lamp due to an erroneous operation or a change in direction after operating the switch, press switches 1 and 2 at the same time. It is possible to reset the latches 5 and 6 even before the signal from the counter 8 comes, and it is possible to forcibly turn off the lamp. Alternatively, the light can be forcibly turned off by providing a switch for turning off the light and applying power to the OR gates 11 and 12 connected to the reset terminal of the latch circuit 5.6.

Alternatively, as shown in FIG.
．． 11], inverter 23, 24, one-shot circuit 2
(>, 21 may be inserted so that the lamp 16 or J7 is switched to a dimming light and a ji'f light every time the switch 1 or 2 is activated.

As described above, the present invention is configured to turn off the direction indicator lamp by counting the traveling distance of the vehicle after the switch is operated and the direction indicator lamp flashes, so the direction indicator lamp is automatically turned off. This allows the driver to drive safely without causing any misunderstandings to the vehicles following.

[Brief explanation of drawings]

FIGS. 1 and 2 are schematic diagrams showing each embodiment of the present invention. 1.2 is a switch, 5.6 is a latch circuit, 8 is a counter, 16.17 is a lamp

Claims (1)

[Claims] A direction indicator device that detects that a traveling object has traveled a certain distance after operating the direction indicator, and restores the operation of the direction indicator to its original state.