JPS6024942Y2 - Starting engine lever - erroneous operation prevention device - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for preventing erroneous operation of a starting engine lever.

As shown in Figure 1, the conventional engine starting process for extremely cold specifications is as follows:
The method used was to first start the starter engine a and then start the main engine b.

The procedure is as follows.

(1) Turn the pinion lever C ON, engage the starting engine pinion gear a and the main engine ring gear e, and return the pinion lever C to the OFF position.

(2) Start the starting engine cell motor f to start the starting engine a.

(3) Turn clutch lever g on to transmit the rotation of starting engine a to main engine b and start main engine b.

(4) When main engine b starts, press clutch lever g.
to the OFF position and stop the starting engine a.

The main engine b is started as described above, but if the pinion and clutch lever C9g are operated incorrectly, the following problems will occur.

Set the pinion lever C to the ON position and clutch lever G.
If the starter engine starter motor f is started with the starter motor left in the ON position, the starter engine starter motor f will directly start the main engine b. Since the starter engine starter motor f has a small capacity, the engine will not start.
Further, if the starting engine starter motor f is not energized for a long time, the starting engine starter motor f becomes hot and burns out.

The present invention was developed in view of the above circumstances, and its purpose is that if the starting engine lever is erroneously operated, a warning lamp will light up to notify the operator of this erroneous operation, and the starter motor will stop driving. To provide a starting engine lever erroneous operation prevention device that can reliably prevent erroneous operation of the starting engine lever.

Hereinafter, the present invention will be explained with reference to FIG. 2 and subsequent figures.

In the drawing, reference numeral 1 indicates a part of the starter relay, and this starter relay part 1 is equipped with a starter relay 2 and a warning lamp relay 3, and the movable contacts 4 and 5 of both relays 2 and 3 are interlocked. be.

One terminal of the coil 6 of the starter relay 2 is grounded via a transistor 7, and the base side of the transistor 7 is grounded via a resistor 8.

9 is a comparator, and the output side of the comparator 9 is connected to the base side of the transistor 7 via a resistor 10.

The (+) input side of the comparator 9 is grounded via a resistor 11 and a sensor diode 12, and the (+) input side is grounded via a resistor 25.

The (-) input side of the comparator 9 is grounded via a resistor 13 and a sensor diode 12.
The input side is grounded via a resistor 14.

The other terminal of the coil 6 is grounded via the sensor diode 12.

The starter relay part 1 has a connection terminal 15 connected to the other terminal of the coil 6 and the other fixed contact 3b of the alarm lamp relay 3, a connection terminal 16 connected to the resistor 14, and a connection connected to the resistor 25. A terminal 17 is provided.

In the drawing, 18 is a main switch, 19 is a starter, 20 is a thermistor, and 21 is a battery relay.

The ACC terminal of the main switch 18 is part 1 of the starter relay.
The C terminal is connected to the connection terminal 15 of the starter relay 2, and the BRC terminal of the battery relay 21 is connected to one fixed contact 2a of the starter relay 2.
The terminals and further the B terminal are connected to the B terminal of the starter 19, respectively.

The C terminal of the starter 19 is connected to another fixed contact 2b of the starter relay 2, and the B terminal is connected to the (+) side of the power source 22.

The (-) side of the power source 22 is connected to the -b terminal of the battery relay 21, and the C terminal of the battery relay 21 is grounded.

Both terminals of the thermistor 20 are connected to connection terminals 16, 17 of the starter relay part 1.

The other fixed contact 3a of the alarm lamp relay 3 is grounded via the alarm lamp 23 and the pressure switch 24.

The connection table for the main switch 18 is shown below.

It is always in the ACC position while driving.

Next, the operation will be explained.

Start Main switch 18 to ST to start the engine.
When the starter relay part 1 is in normal operation, the starter relay 2 is activated and the contact is turned on, and at the same time, the alarm lamp relay 3 becomes an open circuit, and the alarm lamp 23 does not light up.

Start engine starts. Main switch 18 is ACC.
Even if the starter relay 2 and alarm lamp relay 3 are returned to the position shown in FIG.

Next, when the main engine is started, the pressure switch 24 is activated, and the circuit becomes open here as well, so naturally the alarm lamp 23 does not light up.

Start Main switch 18 to ST to start the engine.
However, when the engine does not start easily and the starter 19 starts to heat up, the sir and mister 20 are activated and the starter relay 2 returns to the open circuit position.

Therefore, no current flows through the starter 19.

At the same time, the alarm lamp relay 3 returns to the closed circuit position, so the alarm lamp 23 lights up.

If it lights up, return the main switch 18 to the ACC position.

When the starter 19 cools down, the thermistor 20 becomes open, the starter relay 2 becomes a closed circuit, and at the same time, the alarm lamp relay 3 becomes an open circuit, causing the alarm lamp 23 to go out and restart possible.

Further, as shown in FIG. 3, if a check switch 26 is inserted between the alarm lamp relay 3 and the alarm lamp 23, it is possible to check whether the alarm lamp 24 is burnt out before starting the engine.

What is shown in FIG. 4 is another embodiment of the present invention, which has a point in which all the ground terminals of the starter relay 2 are connected before the pressure switch 23, and the other configuration is the same as that of the above-mentioned embodiment. This is the same as the example, and when the main engine is activated, the pressure switch 24 is turned OFF and the starter relay 2 is opened.

As described in detail above, the present invention includes a starter relay 2 which is provided in the circuit of the starter 19 and is energized and activated by operating the main switch 18, and a starter relay 2 which is provided in the circuit of the alarm dumper 23 and is activated by the activation of the starter relay 2. An alarm lamp relay 3 that opens and closes in the opposite direction to the opening and closing of the starter relay 2;
A pressure switch 24 is provided in the circuit of the alarm lamp 23 and turns off when the main engine is running, and a thermistor 20 is provided in the starter 19 and is actuated by the heat generation of the starter 19 to open the starter relay 2. It is characterized by the fact that it is equipped with

Therefore, if you make the mistake of starting the starter engine with the pinion lever in the ON position and the clutch lever in the ON position, the starter engine starter motor will directly start the main engine, and the starter motor's capacity is too small to start the engine. The starter motor generates heat due to the energization, but this heat turns off the thermistor 20, opens the starter relay 2, and at the same time closes the alarm lamp relay 3, turning on the alarm lamp 23, which causes the starter motor to turn off. The drive is stopped and the driver is notified of the erroneous operation, thereby reliably preventing erroneous operation of the starting engine lever.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the configuration of an engine starting device, Fig. 2 is an explanatory diagram of the configuration of the present invention-embodiment, Fig. 3 is an explanatory diagram of the configuration of another embodiment of the warning lamp circuit, and Fig. 4 is an explanatory diagram of the configuration of the present invention-embodiment. FIG. 2 is a configuration explanatory diagram of another embodiment of the present invention. 2 is a starter relay, 3 is a warning lamp relay, 19 is a starter, 20 is a thermistor, and 24 is a pressure switch.

Claims (1)

[Scope of utility model registration request] A starter relay 2 is provided in the circuit of the starter 19 and is energized and activated by operating the main switch 18, and a starter relay 2 is provided in the circuit of the alarm lamp 23 and opens and closes in the opposite direction to the opening and closing of the starter relay 2 by the operation of the starter relay 2. a pressure switch 24 provided in the circuit of the alarm lamp 23 to turn off the main engine during operation; and a pressure switch 24 provided in the starter 19 to turn off the starter 1.
9. A starting engine lever erroneous operation prevention device comprising: a thermistor 20 which is activated by the generation of heat in the starter relay 2 to open the starter relay 2.