JPH02217508A - Driving controller for snow-removing machine - Google Patents

Abstract

PURPOSE:To prevent malfunction from being generated by setting a relay working on detecting the rotation of an engine, and by connecting the contact of the relay to a main switch in series, in an apparatus for driving a snow-casting chute motor with a battery. CONSTITUTION:With a power source from a battery 1, a motor 4 is driven by the operation of an operating lever switch 3, and a snow-casting chute is worked. After that, a relay RY5 working on detecting the rotation of an engine is set, and its relay contact ry5 is connected to the main switch 2 of the battery 1 in series. Besides, the relay Ry5 is connected to a charging coil 7 in parallel with each other via a smoothing circuit 9 and a rectifier. When the engine is stopped, then the relay ry5 is opened, and even if it is forgot to turn the main switch OFF, the power source is contrived to be turned OFF. As a result, current consumption at the time of the stopping of the engine, and malfunction due to error operation can be prevented from being generated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a drive control device for a snow blower, and more particularly to a drive control device for a snow blower in which a snow throwing chute is driven by a motor.

[Conventional technology]

FIG. 4 shows a conventional example.

In the conventional example shown in FIG. 4, a battery 1 serves as the main power source for the snowplow, and is connected to the electric circuit of the snowplow via a main switch 2. When the main switch 2 is turned on, the engine of the snowplow is supplied with ignition power and becomes operational, and when the main switch 2 is placed in a "start" position, which will be described later, it is started. Furthermore, while the engine is operating, the battery 1 is
The battery is configured to be charged via the main switch 2 by a charging circuit (not shown).

The motor 4 is a motor for turning the snow-throwing chute of the snowplow left and right. Now, when the main switch 2 is turned on and the engine is running, if the operating lever switch 3 is set to the left J position, the relays RYI, RY
2 operates and contacts ryl and ry2 close. For this reason,
The motor 4 rotates to rotate the snow throwing chute to the left. -, when the operating lever switch 3 is set to the "right" state, the relay RY3. RY4 operates and contacts ry3. r
y4 closes. In this case, the motor 4 rotates to rotate the snow-throwing chute to the right. The same applies to the vertical movement motor of the snow-throwing chute (not shown). Furthermore, when the main switch 2 is turned on, the loads 50 such as lights and other circuits are also supplied with battery voltage and become operational.

Here, as a method of driving the motor for operating the snow chute, in addition to configuring the control circuit using a relay as shown above, the motor 4 can be turned on directly with the operating lever switch 3.
Turn off or field effect transistor (FET)
There is also a method of driving via etc.

Figure 5 shows the installation status of the main switch and control lever switch.

The main switch 2 and the operating lever switch 3 are normally attached to the operating panel 6. Main switch 2
turns off and on between the battery 1 and each circuit, and at the same time turns on at the start position, and at the same time turns on the starting motor (starter motor, not shown). Rotate it and start the engine. When the operating lever switch 3 is tilted to the "left" or "right", it outputs a control signal for turning the snow-throwing chute to the left or right, respectively.

[Problem B to be Solved by the Invention] During operation, a snow blower may stop its engine for some reason or stop due to lack of gasoline. In this case, the worker forgets to turn off the main switch 2 and leaves it as it is.
If another person accidentally touches the operating lever switch 3,
The relay operates and battery voltage is supplied to the motor 4. In such a case, the snow chute suddenly starts moving.

In this case, if a person is careless and enters the moving range of the snow chute because the engine is stopped, they may collide with the moving snow chute or get their fingers or hands caught, resulting in an emergency. is dangerous.

Conventionally, no countermeasures have been taken against this.

In addition, when the load circuit 50 is connected, there is current consumption in this part, so if it is left unused for a long time, the battery will run down and the engine will not be able to be restarted, which is an inconvenience. was there.

[Purpose of the invention]

The present invention aims to solve the problems of the prior art, and completely eliminates the inconvenience that the snow chute operates due to malfunction of the control lever switch without turning off the main switch while the engine is stopped. To provide a drive control device for a snow blower that can eliminate
That purpose.

[Means to solve the problem]

In the present invention, there is a main switch for supplying power from a battery to each part of the snow blower and for putting the engine into operation, and a main switch for supplying current from the battery through this main switch and using it to drive the snow throwing chute. Equipped with a motor.

The rotation of this motor is controlled by an operation switch. Furthermore, it has a relay that operates by detecting the rotation of the engine, and the contacts of the relay are connected in series with the main switch. This aims to achieve the above-mentioned purpose.

[First Embodiment] Hereinafter, a first embodiment of the present invention will be described based on FIG. 1. Here, the same reference numerals are used for the same components as in the conventional example shown in FIG. 4 described above.

In the embodiment shown in FIG. 1, power is supplied from a battery 1 to each part of the snow blower, and a motor 4 is supplied with current from the battery 1 via a main switch 2 for putting the engine into operation. It is equipped with The snow throwing chute is operated by operating the rotation of this motor 4 via the bar switch 3. In addition, the relay RY operates by detecting engine rotation.
5, and the contact ry5 of this relay RY5 and the main switch 2 are connected in series.

Relay RY5 is connected in parallel to charging coil 7 via smoothing circuit 9 and rectifier 8 that supplies a predetermined current to smoothing circuit 9.

The charging coil 7 is provided to charge the battery 1, and generates a voltage at a predetermined level during engine operation, and the generated voltage is rectified through the rectifier 10, whereby the battery 1 is charged. Configured to be charged.

That is, in FIG. 1, the voltage generated by charging coil 1 is rectified by rectifier 8, smoothed by smoothing circuit 9 including resistor R1 and capacitor C1, and applied to relay RY5. As a result, contact ry5 and main switch 2
The battery 1 is connected to the circuit of the motor 4 via.

The other configurations are the same as the conventional example shown in FIG. 4 described above.

In this state, as in the case of FIG. 4, by setting the operating lever switch 3 to the "left" or "right" state, relays RYI, RY2 or RY3.
Operate RY4 and connect contacts ry1, ry2 or contact ry
3. The motor 4 is rotated in forward and reverse directions via the ry4, thereby making it possible to turn the snow-throwing chute to the left or to the right.

Now, if the engine stops, the voltage generated by the charging coil 7 disappears. As a result, relay RY5 becomes inactive and contact ry5 opens, so battery 1 is disconnected even if main switch 2 remains on. Therefore, even if the operating lever switch 3 is operated by mistake, the motor 4 will not rotate and the snow throwing chute will not operate. Note that in this state, the other loads 5.0 are also disconnected from the battery 1 and do not consume battery current.

In the embodiment shown in FIG. 1, the control is performed using the output voltage of the charging coil 7, but the invention is not limited to this. For example, the output voltage of a separately provided lighting coil for lighting the lamp is used. You may. However, in any case, even if relay RY5 is loaded, it must have an output that does not affect its original function.

[Second Embodiment] FIG. 2 shows a second embodiment. Here, the same parts as in FIG. 1 described above are indicated by the same numbers.

In FIG. 2, even if the main switch 2 is turned on, the relay RY5 does not operate when the engine is not operating.
Therefore, since the contact ry5 is open, the motor 4 does not rotate and the snow throwing chute does not operate.

When the operating lever switch 3 is set to "Start J" and the engine is rotated, a voltage is generated in the charging coil 7.The voltage generated in the charging coil 7 is rectified through a rectifier 8, and is divided into two The voltage is divided by the voltage circuit, smoothed by the capacitor C2, and applied to the operational amplifier ICI.

On the other hand, a signal obtained by dividing the battery voltage by a voltage dividing circuit including resistors R4 and R5 is added to the single power of the operational amplifier ICI.

Now, for example, the voltage of operational amplifier IC1 is 13 (V
), - input terminal is 6 [■], operational amplifier rc,i generates a high level output. The transistor TRI turns on when a high level input is applied to its base from the operational amplifier IC1, thereby operating the relay RY5. Therefore, the contact ry5 is closed and the voltage of the battery 1 is supplied via the main switch 2, so the motor 4 becomes operational and the snow throwing chute is turned to the left in response to the operation of the operating lever switch 3.

Turn right. In this state, the voltage generated by the charging coil 7 is rectified through the rectifier 10, and the main switch 2
The voltage is applied to the battery 1 through. Thereby, charging of the battery 1 is performed simultaneously.

In addition, in FIG. 2, the resistor R6 and capacitor C3 are
The output voltage of the charging coil 7 rectified through the rectifier 10 is smoothed, and the power supply voltage of the operational amplifier ICI and the resistor R are
4 and R5 to generate a divided power supply voltage.

Now, when the engine stops, the voltage generated by the charging coil 7 disappears. As a result, operational amplifier ICI generates a low level output, transistor TRI is turned off, and relay RY5 becomes inactive. Therefore, contact ry5 opens and motor 4 becomes inoperable. Therefore, even if the main switch 2 is on, the motor 4 will not rotate and the snow throwing chute will not operate.

In the circuit shown in FIG. 2, instead of using the voltage generated by the charging coil 7, the output voltage of the lighting coil for lamp lighting may be used. In FIG. 2, connections in this case are shown within broken lines. Reference numeral 11 is a writing coil.

[Third Embodiment] FIG. 3 shows a third embodiment of the present invention. In FIG. 3, a case is illustrated in which the charging coil voltage is detected using a microcomputer and the motor operation is controlled. Here, the same parts as in FIG. 2 are indicated by the same numbers.

In FIG. 3, the operational amplifier ICI is connected with the + and - inputs reversed compared to the case in FIG. occurs. When the human power A becomes low level in the 7432110 section, the output B changes from high level to low level. Inverter rNV inverts this output and applies it to the base of transistor TRI, thus turning on relay RY5.

〔Effect of the invention〕

As explained above, according to the present invention, in a snow blower whose snow throwing chute is operated by a motor driven by a battery connected via a main switch, a relay contact that is turned on when engine rotation is detected is connected to the main switch. Since it is inserted in series with the snow chute, the motor for operating the snow chute becomes inactive even if the main switch is not turned off when the engine is stopped.This prevents malfunction of the snow chute due to erroneous operation of the operating lever switch while the engine is stopped. To provide a drive control device for a snow blower that is unprecedented and excellent in that it can prevent unexpected accidents from occurring and at the same time prevent current consumption in other loads operated by batteries when the engine is stopped. Can be done.

Figure 3

[Brief explanation of the drawing]

Figures 1 to 3 are diagrams showing the configuration of an embodiment of the present invention, Figure 4 is a diagram showing the connection configuration of a conventional electric snow throwing chute, and Figure 5 is an example of the main switch and the operating lever switch. This is a diagram. l...Battery, 2...Main switch, 3...Operation lever switch, 4...
・Motor, 7...Charging coil, RY l~RY
5 ・=・−Relay ryl～ry5・・・Relay contact. Fourth cause

Claims (1)

[Claims] (1) It is equipped with a motor that supplies power from the battery to each part of the snow blower and is supplied with current from the battery via a main switch to put the engine into operation, and the rotation of the motor is controlled via an operating switch. A drive control device for a snow blower that drives a snow throwing chute by operating the snow removal chute, characterized in that a relay that operates by detecting rotation of the engine is provided, and a contact point of this relay and the main switch are connected in series. A drive control device for snow blowers.