JPS6318045Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a display device for displaying the gear shift position, etc., which is used, for example, to notify the driver of the gear shift position of a motorcycle. The display is made to be easy to read in any display case.

Gear shifting on a motorcycle is performed by pressing the gear shift pedal with the foot, so on motorcycles equipped with a transmission with many gears, it may be difficult to confirm which gear the rider is currently in. In order to solve this problem, many vehicles are now equipped with a display device in the meter panel to which the speedometer or the like is attached so that the driver can easily check the number of gears.

Recently, a 7-segment LED character display has been used instead of the initial lamp, and a display device that digitally represents the number of gears has appeared. There are other motorcycle display devices that display the operation of turn signals. This display device is usually formed of a lamp that blinks at the same or opposite cycle to the blinker lamp. Therefore, the motorcycle will be equipped with two display devices.

The present invention has been developed in view of this point, and is designed to allow a single display to display both the gear shift position and direction instructions, and to make it easy to see when either is displayed. . The present invention has a configuration for that purpose, in which a second logic circuit that has priority over the logic circuit is connected to a display mechanism formed by a logic circuit, a diode array, and a 7-segment LED character display, and the logic circuit has a speed changer. A switch that changes when the position is changed is connected to display the shift position at all times, and a direction indicating changeover switch is connected to the second logic circuit, and when the changeover switch is changed, the seven segments as well as the turn signal lamp are activated. It is configured so that the LED character display blinks. An example of this will be explained with reference to FIG. 1. 1 is a logic circuit, which is an open collector type NAND circuit;
8 pieces from "0" to "7" 1-0 or 1-7
is provided. This NAND circuit 1
Among them, each one of the input terminals from 1-1 to 1-5 is connected to the fixed contacts 2b to 2 of the rotary switch 2.
connected to g. A movable contact 2a of the rotary switch 2 is connected to a movable contact 3a of the turn signal switch 3.

The other input terminals of the NAND circuits 1-0 to 1-5 are commonly connected to the output side of a NOR circuit 4, which is a second logic circuit that has priority over the NAND circuits 1-0 to 1-5. NAND circuit 1-0 or 1
A diode array 5 is connected to the output side of 6-0.
A 7-segment LED 6 having 7 segments from 6 to 6 is connected. A diode 7 is connected to the intersection of the diode array 5 with the NAND circuits 1-0 to 1-7, as shown in FIG.

A flasher relay 8 and a turn signal lamp 9 are connected in series between the fixed contact 3b of the turn signal switch 3 and the ground, and a flasher relay 10 and a turn signal lamp 11 are connected in series between the fixed contact 3c and the ground. . The fixed contact 3b is a left turn contact, and the fixed contact 3c is a right turn contact.

One input terminal of the NAND circuit 1-6 is connected to the fixed contact 3c of the turn signal switch 3 in common with one input terminal of the NOR circuit 4, and the other input terminal is connected to the fixed contact 3c of the turn signal switch 3. connected to a connection point. Further, one input terminal of the NAND circuit 1-7 is connected to the fixed contact 3b of the turn signal switch 3 in common with the other input terminal of the NOR circuit 4, and the other input terminal is connected to the flasher relay 8 and the turn signal lamp 9. connected to the connection point.

In this device configured as described above, if we consider that the movable contact 3a of the turn signal switch 3 is not in contact with either of the fixed contacts 3b or 3c, the output of the NOR circuit 4 becomes "H". There is. At this time, the movable contact 2a of the rotary switch 2 is in contact with any one of the fixed contacts 2b to 2g, so the output of the NAND circuit corresponding to the fixed contact in contact becomes "L". This causes the 7-segment LED to emit light, digitally displaying the number of gears (see Figure 3A).

When the movable contact 3a of the turn signal switch 3 contacts the fixed contact 3b with the fixed contact 3c, the turn signal lamps 9 and 11 on the contacted side will flash. At this time, the output of NOR circuit 4 becomes "L", so NAND circuit 1-0 or 1-
5 stops, the gear shift position display disappears, and instead the letter "R" or "L" is displayed in synchronization with the turn signal lamps 9 and 11 by the NAND circuit 1-6 or 1-7. (See Figure 3 B). This display shows the turn signal lamp 9,
It will blink in synchronization with 11.

Since the present invention is constructed as described above, it is possible to integrate the gear shift position indicator and direction indicator indicator, which were conventionally provided separately, and improve the layout of the meter panel. In addition, the number of parts is reduced, the structure is simpler, and the driver can easily check the structure. Also, when displaying the turn signal, by blinking,
Since the driver's attention is improved, there is no need to forget to turn off the turn signal switch. When the turn signal lamp is blinking in synchronization with the turn signal lamp, the gear shift position is not displayed at all, and only the direction indication side is displayed, so there is no need for both displays to appear alternately. The display device can be extremely easy to see.

[Brief explanation of drawings]

FIG. 1 is a circuit diagram of an embodiment of the present invention, FIG. 2 is a partially enlarged circuit diagram of FIG. 1, and FIGS. 3A and 3B are front views showing the operating state. 1-0 to 1-7... NAND circuit, 2... Rotary switch, 2a, 3a... Movable contact, 2b...
2g, 3b, 3c...Fixed contact, 4...Nor circuit, 5...Diode array, 6...7 segment LED, 7...Diode, 8, 10...Flash relay, 9, 11...Turn signal lamp .

Claims (1)

[Claims for Utility Model Registration] (1) A display mechanism formed by a logic circuit, a diode array, and a 7-segment LED character display,
A second logic circuit that has priority over the logic circuit is connected to the logic circuit, a switch that changes when the shift position is changed is connected to constantly display the shift position, and the second logic circuit is connected to a switch that changes when the shift position is changed. 1. A display device for displaying a gear shift position, etc., characterized in that a changeover switch is connected to the changeover switch, and when the changeover switch is changed, the 7-segment LED character display blinks together with the turn signal lamp. (2) The display device for displaying gear shift positions, etc., according to claim 1, wherein the logic circuit is a NAND circuit, and the second logic circuit is a NOR circuit.